updated core to 7.53

CHANGELOG.txt

@@ -1,6 +1,300 @@
 
+Drupal 7.53, 2016-12-07
+-----------------------
+- Fixed drag and drop support on newer Chrome/IE 11+ versions after 7.51 update
+  when jQuery is updated to 1.7-1.11.0.
+
+Drupal 7.52, 2016-11-16
+-----------------------
+- Fixed security issues (multiple vulnerabilities). See SA-CORE-2016-005.
+
+Drupal 7.51, 2016-10-05
+-----------------------
+- The Update module now also checks for updates to a disabled theme that is
+  used as an admin theme.
+- Exceptions thrown in dblog_watchdog() are now caught and ignored.
+- Clarified the warning that appears when modules are missing or have moved.
+- Log messages are now XSS filtered on display.
+- Draggable tables now work on touch screen devices.
+- Added a setting for allowing double underscores in CSS identifiers
+  (https://www.drupal.org/node/2810369).
+- If a user navigates away from a page while an Ajax request is running they
+  will no longer get an error message saying "An Ajax HTTP request terminated
+  abnormally".
+- The system_region_list() API function now takes an optional third parameter
+  which allows region name translations to be skipped when they are not needed
+  (API addition: https://www.drupal.org/node/2810365).
+- Numerous performance improvements.
+- Numerous bug fixes.
+- Numerous API documentation improvements.
+- Additional automated test coverage.
+
+Drupal 7.50, 2016-07-07 
+-----------------------
+- Added a new "administer fields" permission for trusted users, which is
+  required in addition to other permissions to use the field UI
+  (https://www.drupal.org/node/2483307).
+- Added clickjacking protection to Drupal core by setting the X-Frame-Options
+  header to SAMEORIGIN by default (https://www.drupal.org/node/2735873).
+- Added support for full UTF-8 (emojis, Asian symbols, mathematical symbols) on
+  MySQL and other database drivers when the site and database are configured to
+  allow it (https://www.drupal.org/node/2761183).
+- Improved performance by avoiding a re-scan of directories when a file is
+  missing; instead, trigger a PHP warning (minor API change:
+  https://www.drupal.org/node/2581445).
+- Made it possible to use any PHP callable in Ajax form callbacks, form API
+  form-building functions, and form API wrapper callbacks (API addition:
+  https://www.drupal.org/node/2761169).
+- Fixed that following a password reset link while logged in leaves users unable
+  to change their password (minor user interface change:
+  https://www.drupal.org/node/2759023).
+- Implemented various fixes for automated test failures on PHP 5.4+ and PHP 7.
+  Drupal core automated tests now pass in these environments.
+- Improved support for PHP 7 by fixing various problems.
+- Fixed various bugs with PHP 5.5+ imagerotate(), including when incorrect
+  color indices are passed in.
+- Fixed a regression introduced in Drupal 7.43 that allowed files uploaded by
+  anonymous users to be lost after form validation errors, and that also caused
+  regressions with certain contributed modules.
+- Fixed a regression introduced in Drupal 7.36 which caused the default value
+  of hidden textarea fields to be ignored.
+- Fixed robots.txt to allow search engines to access CSS, JavaScript and image
+  files.
+- Changed wording on the Update Manager settings page to clarify that the
+  option to check for disabled module updates also applies to uninstalled
+  modules (administrative-facing translatable string change).
+- Changed the help text when editing menu links and configuring URL redirect
+  actions so that it does not reference "Drupal" or the drupal.org website
+  (administrative-facing translatable string change).
+- Fixed the locale safety check that is used to ensure that translations are
+  safe to allow for tokens in the href/src attributes of translated strings.
+- Fixed that URL generation only works on port 80 when using domain based
+  language negotation.
+- Made method="get" forms work inside the administrative overlay. The fix adds
+  a new hidden field to these forms when they appear inside the overlay (minor
+  data structure change).
+- Increased maxlength of menu link title input fields in the node form and
+  menu link form from 128 to 255 characters.
+- Removed meaningless post-check=0 and pre-check=0 cache control headers from
+  Drupal HTTP responses.
+- Added a .editorconfig file to auto-configure editors that support it.
+- Added --directory option to run-tests.sh for easier test discovery of all
+  tests within a project.
+- Made run-tests.sh exit with a failure code when there are test fails or
+  problems running the script.
+- Fixed that cookies from previous tests are still present when a new test
+  starts in DrupalWebTestCase.
+- Improved performance of queries on the {authmap} database table.
+- Fixed handling of missing files and functions inside the registry.
+- Fixed Ajax handling for tableselect form elements that use checkboxes.
+- Fixed a bug which caused ip_address() to return nothing when the client IP
+  address and proxy IP address are the same.
+- Added a new option to format_xml_elements() to allow for already encoded
+  values.
+- Changed the {history} table's node ID field to be an unsigned integer, to
+  match the same field in the {node} table and to prevent errors with very
+  large node IDs.
+- Added an explicit page callback to the "admin/people/create" menu item in the
+  User module (minor data structure change). Previously this automatically
+  inherited the page callback from the parent "admin/people" menu item, which
+  broke contributed modules that override the "admin/people" page.
+- Numerous small bug fixes.
+- Numerous API documentation improvements.
+- Additional automated test coverage.
+
+Drupal 7.44, 2016-06-15
+-----------------------
+- Fixed security issues (privilege escalation). See SA-CORE-2016-002.
+
+Drupal 7.43, 2016-02-24
+-----------------------
+- Fixed security issues (multiple vulnerabilities). See SA-CORE-2016-001.
+
+Drupal 7.42, 2016-02-03
+-----------------------
+- Stopped invoking hook_flush_caches() on every cron run, since some modules
+  use that hook for expensive operations that are only needed on cache clears.
+- Changed the default .htaccess and web.config to block Composer-related files.
+- Added static caching to module_load_include() to improve performance.
+- Fixed double-encoding bugs in select field widgets provided by the Options
+  module. The fix deprecates the 'strip_tags' property on option widgets and
+  replaces it with a new 'strip_tags_and_unescape' property (minor data
+  structure change).
+- Improved MySQL 5.7 support by changing the MySQL database driver to stop
+  using the ANSI SQL mode alias, which has different meanings for different
+  MySQL versions.
+- Fixed a regression introduced in Drupal 7.39 which prevented autocomplete
+  functionality from working on servers that are not configured to
+  automatically recognize index.php.
+- Updated the Archive_Tar PEAR package to the latest 1.4.0 release, to fix bugs
+  with tar file handling on various operating systems.
+- Fixed fatal errors on node preview when a field is displayed in the node
+  teaser but hidden in the full node view. The fix removes a
+  field_attach_prepare_view() call from the node_preview() function since it is
+  redundant with one in the node preview theme layer.
+- Improved the description of the "Trimmed" format option on text fields
+  (translatable string change, and minor UI and data structure change).
+- Numerous small bug fixes.
+- Numerous API documentation improvements.
+- Additional automated test coverage.
+
+Drupal 7.41, 2015-10-21
+-----------------------
+- Fixed security issues (open redirect). See SA-CORE-2015-004.
+
+Drupal 7.40, 2015-10-14
+-----------------------
+- Made Drupal's code for parsing .info files run much faster and use much less
+  memory.
+- Prevented drupal_http_request() from returning an error when it receives a
+  201 through 206 HTTP status code.
+- Added support for autoloading traits via the registry on sites running PHP
+  5.4 or higher.
+- Allowed the user-picture.tpl.php theme template to have HTML classes besides
+  the default "user-picture" class printed in it (markup change).
+- Fixed the URL text filter to convert e-mail addresses with plus signs into
+  mailto: links.
+- Added alternate text to file icons displayed by the File module, to improve
+  accessibility (string change, and minor API addition to theme_file_icon()).
+- Changed one-time login link failure messages to be displayed as errors or
+  warnings as appropriate, rather than as regular status messages (minor UI
+  change and data structure change).
+- Changed the default settings.php configuration to exclude private files from
+  the "404_fast_paths" behavior.
+- Changed the page that displays filter tips for a particular text format, for
+  example filter/tips/full_html, to return "page not found" or "access denied"
+  if the format does not exist or the user does not have access to it. This
+  change adds a new menu item to the Filter module's hook_menu() entry (minor
+  data structure change).
+- Added a new hook, hook_block_cid_parts_alter(), to allow modules to alter the
+  cache keys used for caching a particular block.
+- Made drupal_set_message() display and return messages when "0" is passed in
+  as the message to set.
+- Fixed non-functional "Files displayed by default" setting on file fields.
+- The "worker callback" provided in hook_cron_queue_info() and the "finished"
+  callback specified during batch processing can now be any PHP callable
+  instead of just functions.
+- Prevented drupal_set_time_limit() from decreasing the time limit in the case
+  where the PHP maximum execution time is already unlimited.
+- Changed the default thousand marker for numeric fields from a space ("1 000")
+  to nothing ("1000") (minor UI change: https://www.drupal.org/node/1388376).
+- Prevented malformed theme .info files (without a "name" key) from causing
+  exceptions during menu rebuilds. If an .info file without a "name" key is
+  found in a module or theme directory, Drupal will now use the module or
+  theme's machine name as the display name instead.
+- Made the format column in the {date_format_locale} database table
+  case-sensitive, to match the equivalent column in the {date_formats} table.
+- Fixed a bug in the Statistics module that caused JavaScript files attached to
+  a node while it is being viewed to be omitted from the page.
+- Added an optional 'project:' prefix that can be added to dependencies in a
+  module's .info file to indicate which project the dependency resides in (API
+  addition: https://www.drupal.org/node/2299747).
+- Fixed various bugs that occurred after hooks were invoked early in the Drupal
+  bootstrap and that caused module_implements() and drupal_alter() to cache an
+  incomplete set of hook implementations for later use.
+- Set the X-Content-Type-Options header to "nosniff" when possible, to prevent
+  certain web browsers from picking an unsafe MIME type.
+- Prevented the database API from executing multiple queries at once on MySQL,
+  if the site's PHP version is new enough to do so. This is a secondary defense
+  against SQL injection (API change: https://www.drupal.org/node/2463973).
+- Fixed a bug in the Drupal 6 to Drupal 7 upgrade path which caused the upgrade
+  to fail when there were multiple file records pointing to the same file.
+- Numerous small bug fixes.
+- Numerous API documentation improvements.
+- Additional automated test coverage.
+
+Drupal 7.39, 2015-08-19
+-----------------------
+- Fixed security issues (multiple vulnerabilities). See SA-CORE-2015-003.
+
+Drupal 7.38, 2015-06-17
+-----------------------
+- Fixed security issues (multiple vulnerabilities). See SA-CORE-2015-002.
+
+Drupal 7.37, 2015-05-07
+-----------------------
+- Fixed a regression in Drupal 7.36 which caused certain kinds of content types
+  to become disabled if they were defined by a no-longer-enabled module.
+- Removed a confusing description regarding automatic time zone detection from
+  the user account form (minor UI and data structure change).
+- Allowed custom HTML tags with a dash in the name to pass through filter_xss()
+  when specified in the list of allowed tags.
+- Allowed hook_field_schema() implementations to specify indexes for fields
+  based on a fixed-length column prefix (rather than the entire column), as was
+  already allowed in hook_schema() implementations.
+- Fixed PDO exceptions on PostgreSQL when accessing invalid entity URLs.
+- Added a sites/all/libraries folder to the codebase, with instructions for
+  using it.
+- Added a description to the "Administer text formats and filters" permission
+  on the Permissions page (string change).
+- Numerous small bug fixes.
+- Numerous API documentation improvements.
+- Additional automated test coverage.
+
+Drupal 7.36, 2015-04-01
+-----------------------
+- Added a 'file_public_schema' variable which allows modules that define
+  publicly-accessible streams in hook_stream_wrappers() to bypass file download
+  access checks when processing managed file upload fields.
+- Fixed a bug that caused database query tags not to be added to search-related
+  database queries under many circumstances, and which prevented the
+  corresponding hook_query_TAG_alter() implementations from being called.
+- Fixed the "for" attribute on managed file upload field labels to improve
+  accessibility (minor markup change).
+- Added a 'javascript_always_use_jquery' variable which can be set to FALSE by
+  sites that may not need jQuery loaded on all pages, and a 'requires_jquery'
+  option to drupal_add_js() which modules can set to FALSE when adding
+  JavaScript files that have no dependency on jQuery (API addition:
+  https://www.drupal.org/node/2462717).
+- Fixed incorrect foreign keys in the User module's role_permission and
+  users_roles database tables.
+- Changed permission descriptions throughout Drupal core to consistently link
+  to relevant administrative pages, regardless of whether the user viewing the
+  Permissions page can view the page being linked to (minor UI change).
+- Fixed the drupal_add_region_content() function so that it actually adds
+  content to the page.
+- Added an 'image_suppress_itok_output' variable to allow sites already using
+  the existing 'image_allow_insecure_derivatives' variable to also prevent
+  security tokens from appearing in image derivative URLs.
+- Fixed double-escaping of theme names in the Block module administrative
+  interface (minor string change).
+- Added basic support for Xdebug when running automated tests.
+- Fixed a bug which caused previewing a node to remove elements from the node
+  being edited. With this fix, calling node_preview() will no longer modify the
+  passed-in node object (minor API change).
+- Added a user_has_role() function to check whether a user has a particular
+  role (API addition: https://www.drupal.org/node/2462411).
+- Fixed installation failures when an opcode cache is enabled.
+- Fixed a bug in the Drupal 6 to Drupal 7 upgrade path which caused private
+  files to be inaccessible.
+- Fixed a bug in the Drupal 6 to Drupal 7 upgrade path which caused user
+  pictures to be lost.
+- Fixed missing language code in hook_field_attach_view_alter() when it is
+  invoked from field_view_field().
+- Stopped sending ETag and Last-Modified headers for uncached page requests,
+  since they break caching for certain Varnish and Nginx configurations.
+- Changed the Simpletest module to allow PSR-4 test classes to be used in
+  Drupal 7.
+- Fixed a fatal error that occurred when using the Comment module's "Unpublish
+  comment containing keyword(s)" action.
+- Changed the "lang" attribute on language links to "xml:lang" so it validates
+  as XHTML (minor markup change).
+- Prevented the form API from allowing arrays to be submitted for various form
+  elements, such as textfields, textareas, and password fields (API change:
+  https://www.drupal.org/node/2462723).
+- Fixed a bug in the Contact module which caused the global user object to have
+  the incorrect name and e-mail address during the remainder of the page
+  request after the contact form is submitted.
+- Numerous small bug fixes.
+- Numerous API documentation improvements.
+- Additional automated test coverage.
+
+Drupal 7.35, 2015-03-18
+-----------------------
+- Fixed security issues (multiple vulnerabilities). See SA-CORE-2015-001.
+
 Drupal 7.34, 2014-11-19
-----------------------
+-----------------------
 - Fixed security issues (multiple vulnerabilities). See SA-CORE-2014-006.
 
 Drupal 7.33, 2014-11-07
@@ -69,11 +363,11 @@ Drupal 7.33, 2014-11-07
 - Additional automated test coverage.
 
 Drupal 7.32, 2014-10-15
-----------------------
+-----------------------
 - Fixed security issues (SQL injection). See SA-CORE-2014-005.
 
 Drupal 7.31, 2014-08-06
-----------------------
+-----------------------
 - Fixed security issues (denial of service). See SA-CORE-2014-004.
 
 Drupal 7.30, 2014-07-24
@@ -88,7 +382,7 @@ Drupal 7.30, 2014-07-24
 - Additional automated test coverage.
 
 Drupal 7.29, 2014-07-16
-----------------------
+-----------------------
 - Fixed security issues (multiple vulnerabilities). See SA-CORE-2014-003.
 
 Drupal 7.28, 2014-05-08
@@ -134,11 +428,11 @@ Drupal 7.28, 2014-05-08
 - Additional automated test coverage.
 
 Drupal 7.27, 2014-04-16
-----------------------
+-----------------------
 - Fixed security issues (information disclosure). See SA-CORE-2014-002.
 
 Drupal 7.26, 2014-01-15
-----------------------
+-----------------------
 - Fixed security issues (multiple vulnerabilities). See SA-CORE-2014-001.
 
 Drupal 7.25, 2014-01-02
@@ -204,7 +498,7 @@ Drupal 7.25, 2014-01-02
 - Additional automated test coverage.
 
 Drupal 7.24, 2013-11-20
-----------------------
+-----------------------
 - Fixed security issues (multiple vulnerabilities), see SA-CORE-2013-003.
 
 Drupal 7.23, 2013-08-07
@@ -458,8 +752,8 @@ Drupal 7.15, 2012-08-01
 - Numerous API documentation improvements.
 - Additional automated test coverage.
 
-Drupal 7.14 2012-05-02
-----------------------
+Drupal 7.14, 2012-05-02
+-----------------------
 - Fixed "integrity constraint" fatal errors when rebuilding registry.
 - Fixed custom logo and favicon functionality referencing incorrect paths.
 - Fixed DB Case Sensitivity: Allow BINARY attribute in MySQL.
@@ -507,12 +801,12 @@ Drupal 7.14 2012-05-02
   - system_update_7061() converts filepaths too aggressively.
   - Trigger upgrade path: Node triggers removed when upgrading to 7-x from 6.25.
 
-Drupal 7.13 2012-05-02
-----------------------
+Drupal 7.13, 2012-05-02
+-----------------------
 - Fixed security issues (Multiple vulnerabilities), see SA-CORE-2012-002.
 
 Drupal 7.12, 2012-02-01
-----------------------
+-----------------------
 - Fixed bug preventing custom menus from receiving an active trail.
 - Fixed hook_field_delete() no longer invoked during field_purge_data().
 - Fixed bug causing entity info cache to not be cleared with the rest of caches.
@@ -546,11 +840,11 @@ Drupal 7.12, 2012-02-01
   cache.
 
 Drupal 7.11, 2012-02-01
-----------------------
+-----------------------
 - Fixed security issues (Multiple vulnerabilities), see SA-CORE-2012-001.
 
 Drupal 7.10, 2011-12-05
-----------------------
+-----------------------
 - Fixed Content-Language HTTP header to not cause issues with Drush 5.x.
 - Reduce memory usage of theme registry (performance).
 - Fixed PECL upload progress bar for FileField
@@ -903,7 +1197,7 @@ Drupal 7.0, 2011-01-05
       requests.
 
 Drupal 6.23-dev, xxxx-xx-xx (development release)
------------------------
+---------------------------
 
 Drupal 6.22, 2011-05-25
 -----------------------
@@ -913,25 +1207,25 @@ Drupal 6.22, 2011-05-25
 - Fixed a variety of other bugs.
 
 Drupal 6.21, 2011-05-25
-----------------------
+-----------------------
 - Fixed security issues (Cross site scripting), see SA-CORE-2011-001.
 
 Drupal 6.20, 2010-12-15
-----------------------
+-----------------------
 - Fixed a variety of small bugs, improved code documentation.
 
 Drupal 6.19, 2010-08-11
-----------------------
+-----------------------
 - Fixed a variety of small bugs, improved code documentation.
 
 Drupal 6.18, 2010-08-11
-----------------------
+-----------------------
 - Fixed security issues (OpenID authentication bypass, File download access
   bypass, Comment unpublishing bypass, Actions cross site scripting),
   see SA-CORE-2010-002.
 
 Drupal 6.17, 2010-06-02
-----------------------
+-----------------------
 - Improved PostgreSQL compatibility
 - Better PHP 5.3 and PHP 4 compatibility
 - Better browser compatibility of CSS and JS aggregation
@@ -940,7 +1234,7 @@ Drupal 6.17, 2010-06-02
 - Fixed a variety of other bugs.
 
 Drupal 6.16, 2010-03-03
-----------------------
+-----------------------
 - Fixed security issues (Installation cross site scripting, Open redirection,
   Locale module cross site scripting, Blocked user session regeneration),
   see SA-CORE-2010-001.
@@ -952,12 +1246,12 @@ Drupal 6.16, 2010-03-03
 - Fixed a variety of other bugs.
 
 Drupal 6.15, 2009-12-16
-----------------------
+-----------------------
 - Fixed security issues (Cross site scripting), see SA-CORE-2009-009.
 - Fixed a variety of other bugs.
 
 Drupal 6.14, 2009-09-16
-----------------------
+-----------------------
 - Fixed security issues (OpenID association cross site request forgeries,
   OpenID impersonation and File upload), see SA-CORE-2009-008.
 - Changed the system modules page to not run all cache rebuilds; use the
@@ -966,18 +1260,18 @@ Drupal 6.14, 2009-09-16
 - Fixed a variety of small bugs.
 
 Drupal 6.13, 2009-07-01
-----------------------
+-----------------------
 - Fixed security issues (Cross site scripting, Input format access bypass and
   Password leakage in URL), see SA-CORE-2009-007.
 - Fixed a variety of small bugs.
 
 Drupal 6.12, 2009-05-13
-----------------------
+-----------------------
 - Fixed security issues (Cross site scripting), see SA-CORE-2009-006.
 - Fixed a variety of small bugs.
 
 Drupal 6.11, 2009-04-29
-----------------------
+-----------------------
 - Fixed security issues (Cross site scripting and limited information
   disclosure), see SA-CORE-2009-005
 - Fixed performance issues with the menu router cache, the update
@@ -985,7 +1279,7 @@ Drupal 6.11, 2009-04-29
 - Fixed a variety of small bugs.
 
 Drupal 6.10, 2009-02-25
-----------------------
+-----------------------
 - Fixed a security issue, (Local file inclusion on Windows),
   see SA-CORE-2009-003
 - Fixed node_feed() so custom fields can show up in RSS feeds.
@@ -1381,7 +1675,7 @@ Drupal 4.7.9, 2007-12-05
 - fixed a security issue (SQL injection), see SA-2007-031
 
 Drupal 4.7.8, 2007-10-17
-----------------------
+------------------------
 - fixed a security issue (HTTP response splitting), see SA-2007-024
 - fixed a security issue (Cross site scripting via uploads), see SA-2007-026
 - fixed a security issue (API handling of unpublished comment), see SA-2007-030
@@ -1494,7 +1788,7 @@ Drupal 4.6.11, 2007-01-05
 - Fixed security issue (DoS), see SA-2007-002
 
 Drupal 4.6.10, 2006-10-18
-------------------------
+-------------------------
 - Fixed security issue (XSS), see SA-2006-024
 - Fixed security issue (CSRF), see SA-2006-025
 - Fixed security issue (Form action attribute injection), see SA-2006-026

INSTALL.txt

@@ -23,7 +23,7 @@ Drupal requires:
   - Percona Server 5.1.70 (or greater) (http://www.percona.com/). Percona
     Server is a backwards-compatible replacement for MySQL.
   - PostgreSQL 8.3 (or greater) (http://www.postgresql.org/).
-  - SQLite 3.4.2 (or greater) (http://www.sqlite.org/).
+  - SQLite 3.3.7 (or greater) (http://www.sqlite.org/).
 
 For more detailed information about Drupal requirements, including a list of
 PHP extensions and configurations that are required, see "System requirements"

MAINTAINERS.txt

@@ -1,7 +1,8 @@
 
 Drupal core is built and maintained by the Drupal project community. Everyone is
 encouraged to submit issues and changes (patches) to improve Drupal, and to
-contribute in other ways -- see http://drupal.org/contribute to find out how.
+contribute in other ways -- see https://www.drupal.org/contribute to find out
+how.
 
 Branch maintainers
 ------------------
@@ -9,160 +10,154 @@ Branch maintainers
 The Drupal Core branch maintainers oversee the development of Drupal as a whole.
 The branch maintainers for Drupal 7 are:
 
-- Dries Buytaert 'dries' http://drupal.org/user/1
-- Angela Byron 'webchick' http://drupal.org/user/24967
-- David Rothstein 'David_Rothstein' http://drupal.org/user/124982
+- Dries Buytaert 'dries' https://www.drupal.org/u/dries
+- Angela Byron 'webchick' https://www.drupal.org/u/webchick
+- Fabian Franz 'Fabianx' https://www.drupal.org/u/fabianx
+- David Rothstein 'David_Rothstein' https://www.drupal.org/u/david_rothstein
+- Stefan Ruijsenaars 'stefan.r' https://www.drupal.org/u/stefanr-0
 
 
 Component maintainers
 ---------------------
 
 The Drupal Core component maintainers oversee the development of Drupal
-subsystems. See http://drupal.org/contribute/core-maintainers for more
+subsystems. See https://www.drupal.org/contribute/core-maintainers for more
 information on their responsibilities, and to find out how to become a component
 maintainer. Current component maintainers for Drupal 7:
 
 Ajax system
-- Alex Bronstein 'effulgentsia' http://drupal.org/user/78040
-- Earl Miles 'merlinofchaos' http://drupal.org/user/26979
+- Alex Bronstein 'effulgentsia' https://www.drupal.org/u/effulgentsia
+- Earl Miles 'merlinofchaos' https://www.drupal.org/u/merlinofchaos
 
 Base system
-- Károly Négyesi 'chx' http://drupal.org/user/9446
-- Damien Tournoud 'DamZ' http://drupal.org/user/22211
-- Moshe Weitzman 'moshe weitzman' http://drupal.org/user/23
+- Damien Tournoud 'DamZ' https://www.drupal.org/u/damien-tournoud
+- Moshe Weitzman 'moshe weitzman' https://www.drupal.org/u/moshe-weitzman
 
 Batch system
-- Yves Chedemois 'yched' http://drupal.org/user/39567
+- Yves Chedemois 'yched' https://www.drupal.org/u/yched
 
 Cache system
-- Damien Tournoud 'DamZ' http://drupal.org/user/22211
-- Nathaniel Catchpole 'catch' http://drupal.org/user/35733
+- Damien Tournoud 'DamZ' https://www.drupal.org/u/damien-tournoud
+- Nathaniel Catchpole 'catch' https://www.drupal.org/u/catch
 
 Cron system
-- Károly Négyesi 'chx' http://drupal.org/user/9446
-- Derek Wright 'dww' http://drupal.org/user/46549
+- Derek Wright 'dww' https://www.drupal.org/u/dww
 
 Database system
-- Larry Garfield 'Crell' http://drupal.org/user/26398
+- Larry Garfield 'Crell' https://www.drupal.org/u/crell
 
   - MySQL driver
-    - Larry Garfield 'Crell' http://drupal.org/user/26398
-    - David Strauss 'David Strauss' http://drupal.org/user/93254
+    - Larry Garfield 'Crell' https://www.drupal.org/u/crell
+    - David Strauss 'David Strauss' https://www.drupal.org/u/david-strauss
 
   - PostgreSQL driver
-    - Damien Tournoud 'DamZ' http://drupal.org/user/22211
-    - Josh Waihi 'fiasco' http://drupal.org/user/188162
+    - Damien Tournoud 'DamZ' https://www.drupal.org/u/damien-tournoud
+    - Josh Waihi 'fiasco' https://www.drupal.org/u/josh-waihi
 
   - Sqlite driver
-    - Damien Tournoud 'DamZ' http://drupal.org/user/22211
-    - Károly Négyesi 'chx' http://drupal.org/user/9446
+    - Damien Tournoud 'DamZ' https://www.drupal.org/u/damien-tournoud
 
 Database update system
-- Károly Négyesi 'chx' http://drupal.org/user/9446
-- Ashok Modi 'BTMash' http://drupal.org/user/60422
+- Ashok Modi 'BTMash' https://www.drupal.org/u/btmash
 
 Entity system
-- Wolfgang Ziegler 'fago' http://drupal.org/user/16747
-- Nathaniel Catchpole 'catch' http://drupal.org/user/35733
-- Franz Heinzmann 'Frando' http://drupal.org/user/21850
+- Wolfgang Ziegler 'fago' https://www.drupal.org/u/fago
+- Nathaniel Catchpole 'catch' https://www.drupal.org/u/catch
+- Franz Heinzmann 'Frando' https://www.drupal.org/u/frando
 
 File system
-- Andrew Morton 'drewish' http://drupal.org/user/34869
-- Aaron Winborn 'aaron' http://drupal.org/user/33420
+- Andrew Morton 'drewish' https://www.drupal.org/u/drewish
+- Aaron Winborn 'aaron' https://www.drupal.org/u/aaron
 
 Form system
-- Károly Négyesi 'chx' http://drupal.org/user/9446
-- Alex Bronstein 'effulgentsia' http://drupal.org/user/78040
-- Wolfgang Ziegler 'fago' http://drupal.org/user/16747
-- Daniel F. Kudwien 'sun' http://drupal.org/user/54136
-- Franz Heinzmann 'Frando' http://drupal.org/user/21850
+- Alex Bronstein 'effulgentsia' https://www.drupal.org/u/effulgentsia
+- Wolfgang Ziegler 'fago' https://www.drupal.org/u/fago
+- Daniel F. Kudwien 'sun' https://www.drupal.org/u/sun
+- Franz Heinzmann 'Frando' https://www.drupal.org/u/frando
 
 Image system
-- Andrew Morton 'drewish' http://drupal.org/user/34869
-- Nathan Haug 'quicksketch' http://drupal.org/user/35821
+- Andrew Morton 'drewish' https://www.drupal.org/u/drewish
+- Nathan Haug 'quicksketch' https://www.drupal.org/u/quicksketch
 
 Install system
-- David Rothstein 'David_Rothstein' http://drupal.org/user/124982
+- David Rothstein 'David_Rothstein' https://www.drupal.org/u/david_rothstein
 
 JavaScript
-- Théodore Biadala 'nod_' http://drupal.org/user/598310
-- Steve De Jonghe 'seutje' http://drupal.org/user/264148
-- Jesse Renée Beach 'jessebeach' http://drupal.org/user/748566
+- Théodore Biadala 'nod_' https://www.drupal.org/u/nod_
+- Steve De Jonghe 'seutje' https://www.drupal.org/u/seutje
 
 Language system
-- Francesco Placella 'plach' http://drupal.org/user/183211
-- Daniel F. Kudwien 'sun' http://drupal.org/user/54136
+- Francesco Placella 'plach' https://www.drupal.org/u/plach
+- Daniel F. Kudwien 'sun' https://www.drupal.org/u/sun
 
 Lock system
-- Damien Tournoud 'DamZ' http://drupal.org/user/22211
+- Damien Tournoud 'DamZ' https://www.drupal.org/u/damien-tournoud
 
 Mail system
 - ?
 
 Markup
-- Jacine Luisi 'Jacine' http://drupal.org/user/88931
-- Daniel F. Kudwien 'sun' http://drupal.org/user/54136
+- Jacine Luisi 'Jacine' https://www.drupal.org/u/jacine
+- Daniel F. Kudwien 'sun' https://www.drupal.org/u/sun
 
 Menu system
-- Peter Wolanin 'pwolanin' http://drupal.org/user/49851
-- Károly Négyesi 'chx' http://drupal.org/user/9446
+- Peter Wolanin 'pwolanin' https://www.drupal.org/u/pwolanin
 
 Path system
-- Dave Reid 'davereid' http://drupal.org/user/53892
-- Nathaniel Catchpole 'catch' http://drupal.org/user/35733
+- Dave Reid 'davereid' https://www.drupal.org/u/dave-reid
+- Nathaniel Catchpole 'catch' https://www.drupal.org/u/catch
 
 Render system
-- Moshe Weitzman 'moshe weitzman' http://drupal.org/user/23
-- Alex Bronstein 'effulgentsia' http://drupal.org/user/78040
-- Franz Heinzmann 'Frando' http://drupal.org/user/21850
+- Moshe Weitzman 'moshe weitzman' https://www.drupal.org/u/moshe-weitzman
+- Alex Bronstein 'effulgentsia' https://www.drupal.org/u/effulgentsia
+- Franz Heinzmann 'Frando' https://www.drupal.org/u/frando
 
 Theme system
-- Earl Miles 'merlinofchaos' http://drupal.org/user/26979
-- Alex Bronstein 'effulgentsia' http://drupal.org/user/78040
-- Joon Park 'dvessel' http://drupal.org/user/56782
-- John Albin Wilkins 'JohnAlbin' http://drupal.org/user/32095
+- Earl Miles 'merlinofchaos' https://www.drupal.org/u/merlinofchaos
+- Alex Bronstein 'effulgentsia' https://www.drupal.org/u/effulgentsia
+- Joon Park 'dvessel' https://www.drupal.org/u/dvessel
+- John Albin Wilkins 'JohnAlbin' https://www.drupal.org/u/johnalbin
 
 Token system
-- Dave Reid 'davereid' http://drupal.org/user/53892
+- Dave Reid 'davereid' https://www.drupal.org/u/dave-reid
 
 XML-RPC system
-- Frederic G. Marand 'fgm' http://drupal.org/user/27985
+- Frederic G. Marand 'fgm' https://www.drupal.org/u/fgm
 
 
 Topic coordinators
 ------------------
 
 Accessibility
-- Everett Zufelt 'Everett Zufelt' http://drupal.org/user/406552
-- Brandon Bowersox-Johnson 'bowersox' http://drupal.org/user/186415
+- Everett Zufelt 'Everett Zufelt' https://www.drupal.org/u/everett-zufelt
+- Brandon Bowersox-Johnson 'bowersox' https://www.drupal.org/u/bowersox
 
 Documentation
-- Jennifer Hodgdon 'jhodgdon' http://drupal.org/user/155601
+- Jennifer Hodgdon 'jhodgdon' https://www.drupal.org/u/jhodgdon
 
 Translations
-- Gerhard Killesreiter 'killes' http://drupal.org/user/83
+- Gerhard Killesreiter 'killes' https://www.drupal.org/u/gerhard-killesreiter
 
 User experience and usability
-- Roy Scholten 'yoroy' http://drupal.org/user/41502
-- Bojhan Somers 'Bojhan' http://drupal.org/user/87969
+- Roy Scholten 'yoroy' https://www.drupal.org/u/yoroy
+- Bojhan Somers 'Bojhan' https://www.drupal.org/u/bojhan
 
 Node Access
-- Moshe Weitzman 'moshe weitzman' http://drupal.org/user/23
-- Ken Rickard 'agentrickard' http://drupal.org/user/20975
-- Jess Myrbo 'xjm' http://drupal.org/user/65776
+- Moshe Weitzman 'moshe weitzman' https://www.drupal.org/u/moshe-weitzman
+- Ken Rickard 'agentrickard' https://www.drupal.org/u/agentrickard
 
 
 Security team
 -----------------
 
-To report a security issue, see: https://drupal.org/security-team/report-issue
+To report a security issue, see: https://www.drupal.org/security-team/report-issue
 
 The Drupal security team provides Security Advisories for vulnerabilities,
 assists developers in resolving security issues, and provides security
-documentation. See http://drupal.org/security-team for more information. The
-security team lead is:
+documentation. See https://www.drupal.org/security-team for more information.
+The security team lead is:
 
-- Michael Hess 'mlhess' https://drupal.org/user/102818
+- Michael Hess 'mlhess' https://www.drupal.org/u/mlhess
 
 
 Module maintainers
@@ -172,143 +167,141 @@ Aggregator module
 - ?
 
 Block module
-- John Albin Wilkins 'JohnAlbin' http://drupal.org/user/32095
+- John Albin Wilkins 'JohnAlbin' https://www.drupal.org/u/johnalbin
 
 Blog module
 - ?
 
 Book module
-- Peter Wolanin 'pwolanin' http://drupal.org/user/49851
+- Peter Wolanin 'pwolanin' https://www.drupal.org/u/pwolanin
 
 Color module
 - ?
 
 Comment module
-- Nathaniel Catchpole 'catch' http://drupal.org/user/35733
+- Nathaniel Catchpole 'catch' https://www.drupal.org/u/catch
 
 Contact module
-- Dave Reid 'davereid' http://drupal.org/user/53892
+- Dave Reid 'davereid' https://www.drupal.org/u/dave-reid
 
 Contextual module
-- Daniel F. Kudwien 'sun' http://drupal.org/user/54136
+- Daniel F. Kudwien 'sun' https://www.drupal.org/u/sun
 
 Dashboard module
 - ?
 
 Database logging module
-- Khalid Baheyeldin 'kbahey' http://drupal.org/user/4063
+- Khalid Baheyeldin 'kbahey' https://www.drupal.org/u/kbahey
 
 Field module
-- Yves Chedemois 'yched' http://drupal.org/user/39567
-- Barry Jaspan 'bjaspan' http://drupal.org/user/46413
+- Yves Chedemois 'yched' https://www.drupal.org/u/yched
+- Barry Jaspan 'bjaspan' https://www.drupal.org/u/bjaspan
 
 Field UI module
-- Yves Chedemois 'yched' http://drupal.org/user/39567
+- Yves Chedemois 'yched' https://www.drupal.org/u/yched
 
 File module
-- Aaron Winborn 'aaron' http://drupal.org/user/33420
+- Aaron Winborn 'aaron' https://www.drupal.org/u/aaron
 
 Filter module
-- Daniel F. Kudwien 'sun' http://drupal.org/user/54136
+- Daniel F. Kudwien 'sun' https://www.drupal.org/u/sun
 
 Forum module
-- Lee Rowlands 'larowlan' http://drupal.org/user/395439
+- Lee Rowlands 'larowlan' https://www.drupal.org/u/larowlan
 
 Help module
 - ?
 
 Image module
-- Nathan Haug 'quicksketch' http://drupal.org/user/35821
+- Nathan Haug 'quicksketch' https://www.drupal.org/u/quicksketch
 
 Locale module
-- Gábor Hojtsy 'Gábor Hojtsy' http://drupal.org/user/4166
+- Gábor Hojtsy 'Gábor Hojtsy' https://www.drupal.org/u/gábor-hojtsy
 
 Menu module
 - ?
 
 Node module
-- Moshe Weitzman 'moshe weitzman' http://drupal.org/user/23
-- David Strauss 'David Strauss' http://drupal.org/user/93254
+- Moshe Weitzman 'moshe weitzman' https://www.drupal.org/u/moshe-weitzman
+- David Strauss 'David Strauss' https://www.drupal.org/u/david-strauss
 
 OpenID module
-- Vojtech Kusy 'wojtha' http://drupal.org/user/56154
-- Christian Schmidt 'c960657' http://drupal.org/user/216078
-- Damien Tournoud 'DamZ' http://drupal.org/user/22211
+- Vojtech Kusy 'wojtha' https://www.drupal.org/u/wojtha
+- Christian Schmidt 'c960657' https://www.drupal.org/u/c960657
+- Damien Tournoud 'DamZ' https://www.drupal.org/u/damien-tournoud
 
 Overlay module
-- Katherine Senzee 'ksenzee' http://drupal.org/user/139855
+- Katherine Senzee 'ksenzee' https://www.drupal.org/u/ksenzee
 
 Path module
-- Dave Reid 'davereid' http://drupal.org/user/53892
+- Dave Reid 'davereid' https://www.drupal.org/u/dave-reid
 
 PHP module
 - ?
 
 Poll module
-- Andrei Mateescu 'amateescu' http://drupal.org/user/729614
+- Andrei Mateescu 'amateescu' https://www.drupal.org/u/amateescu
 
 Profile module
 - ?
 
 RDF module
-- Stéphane Corlosquet 'scor' http://drupal.org/user/52142
+- Stéphane Corlosquet 'scor' https://www.drupal.org/u/scor
 
 Search module
-- Doug Green 'douggreen' http://drupal.org/user/29191
+- Doug Green 'douggreen' https://www.drupal.org/u/douggreen
 
 Shortcut module
-- David Rothstein 'David_Rothstein' http://drupal.org/user/124982
+- David Rothstein 'David_Rothstein' https://www.drupal.org/u/david_rothstein
 
 Simpletest module
-- Jimmy Berry 'boombatower' http://drupal.org/user/214218
-- Károly Négyesi 'chx' http://drupal.org/user/9446
+- Jimmy Berry 'boombatower' https://www.drupal.org/u/boombatower
 
 Statistics module
-- Tim Millwood 'timmillwood' http://drupal.org/user/227849
+- Tim Millwood 'timmillwood' https://www.drupal.org/u/timmillwood
 
 Syslog module
-- Khalid Baheyeldin 'kbahey' http://drupal.org/user/4063
+- Khalid Baheyeldin 'kbahey' https://www.drupal.org/u/kbahey
 
 System module
 - ?
 
 Taxonomy module
-- Jess Myrbo 'xjm' http://drupal.org/user/65776
-- Nathaniel Catchpole 'catch' http://drupal.org/user/35733
-- Benjamin Doherty 'bangpound' http://drupal.org/user/100456
+- Nathaniel Catchpole 'catch' https://www.drupal.org/u/catch
+- Benjamin Doherty 'bangpound' https://www.drupal.org/u/bangpound
 
 Toolbar module
 - ?
 
 Tracker module
-- David Strauss 'David Strauss' http://drupal.org/user/93254
+- David Strauss 'David Strauss' https://www.drupal.org/u/david-strauss
 
 Translation module
-- Francesco Placella 'plach' http://drupal.org/user/183211
+- Francesco Placella 'plach' https://www.drupal.org/u/plach
 
 Trigger module
 - ?
 
 Update module
-- Derek Wright 'dww' http://drupal.org/user/46549
+- Derek Wright 'dww' https://www.drupal.org/u/dww
 
 User module
-- Moshe Weitzman 'moshe weitzman' http://drupal.org/user/23
-- David Strauss 'David Strauss' http://drupal.org/user/93254
+- Moshe Weitzman 'moshe weitzman' https://www.drupal.org/u/moshe-weitzman
+- David Strauss 'David Strauss' https://www.drupal.org/u/david-strauss
 
 
 Theme maintainers
 -----------------
 
 Bartik theme
-- Jen Simmons 'jensimmons' http://drupal.org/user/140882
-- Jeff Burns 'Jeff Burnz' http://drupal.org/user/61393
+- Jen Simmons 'jensimmons' https://www.drupal.org/u/jensimmons
+- Jeff Burns 'Jeff Burnz' https://www.drupal.org/u/jeff-burnz
 
 Garland theme
-- John Albin Wilkins 'JohnAlbin' http://drupal.org/user/32095
+- John Albin Wilkins 'JohnAlbin' https://www.drupal.org/u/johnalbin
 
 Seven theme
-- Jeff Burns 'Jeff Burnz' http://drupal.org/user/61393
+- Jeff Burns 'Jeff Burnz' https://www.drupal.org/u/jeff-burnz
 
 Stark theme
-- John Albin Wilkins 'JohnAlbin' http://drupal.org/user/32095
+- John Albin Wilkins 'JohnAlbin' https://www.drupal.org/u/johnalbin

UPGRADE.txt

@@ -64,6 +64,9 @@ following the instructions in the INTRODUCTION section at the top of this file:
    Sometimes an update includes changes to default.settings.php (this will be
    noted in the release notes). If that's the case, follow these steps:
 
+   - Locate your settings.php file in the /sites/* directory. (Typically
+     sites/default.)
+
    - Make a backup copy of your settings.php file, with a different file name.
 
    - Make a copy of the new default.settings.php file, and name the copy
@@ -74,6 +77,13 @@ following the instructions in the INTRODUCTION section at the top of this file:
      database information, and you will also want to copy in any other
      customizations you have added.
 
+   You can find the release notes for your version at
+   https://www.drupal.org/project/drupal. At bottom of the project page under
+   "Downloads" use the link for your version of Drupal to view the release
+   notes. If your version is not listed, use the 'View all releases' link. From
+   this page you can scroll down or use the filter to find your version and its
+   release notes.
+
 4. Download the latest Drupal 7.x release from http://drupal.org to a
    directory outside of your web root. Extract the archive and copy the files
    into your Drupal directory.

includes/ajax.inc

@@ -211,7 +211,7 @@
  *
  * When returning an Ajax command array, it is often useful to have
  * status messages rendered along with other tasks in the command array.
- * In that case the the Ajax commands array may be constructed like this:
+ * In that case the Ajax commands array may be constructed like this:
  * @code
  *   $commands = array();
  *   $commands[] = ajax_command_replace(NULL, $output);
@@ -230,6 +230,10 @@
  *   functions.
  */
 function ajax_render($commands = array()) {
+  // Although ajax_deliver() does this, some contributed and custom modules
+  // render Ajax responses without using that delivery callback.
+  ajax_set_verification_header();
+
   // Ajax responses aren't rendered with html.tpl.php, so we have to call
   // drupal_get_css() and drupal_get_js() here, in order to have new files added
   // during this request to be loaded by the page. We only want to send back
@@ -390,7 +394,7 @@ function ajax_form_callback() {
   if (!empty($form_state['triggering_element'])) {
     $callback = $form_state['triggering_element']['#ajax']['callback'];
   }
-  if (!empty($callback) && function_exists($callback)) {
+  if (!empty($callback) && is_callable($callback)) {
     $result = $callback($form, $form_state);
 
     if (!(is_array($result) && isset($result['#type']) && $result['#type'] == 'ajax')) {
@@ -487,6 +491,9 @@ function ajax_deliver($page_callback_result) {
     }
   }
 
+  // Let ajax.js know that this response is safe to process.
+  ajax_set_verification_header();
+
   // Print the response.
   $commands = ajax_prepare_response($page_callback_result);
   $json = ajax_render($commands);
@@ -576,6 +583,29 @@ function ajax_prepare_response($page_callback_result) {
   return $commands;
 }
 
+/**
+ * Sets a response header for ajax.js to trust the response body.
+ *
+ * It is not safe to invoke Ajax commands within user-uploaded files, so this
+ * header protects against those being invoked.
+ *
+ * @see Drupal.ajax.options.success()
+ */
+function ajax_set_verification_header() {
+  $added = &drupal_static(__FUNCTION__);
+
+  // User-uploaded files cannot set any response headers, so a custom header is
+  // used to indicate to ajax.js that this response is safe. Note that most
+  // Ajax requests bound using the Form API will be protected by having the URL
+  // flagged as trusted in Drupal.settings, so this header is used only for
+  // things like custom markup that gets Ajax behaviors attached.
+  if (empty($added)) {
+    drupal_add_http_header('X-Drupal-Ajax-Token', '1');
+    // Avoid sending the header twice.
+    $added = TRUE;
+  }
+}
+
 /**
  * Performs end-of-Ajax-request tasks.
  *
@@ -764,7 +794,12 @@ function ajax_pre_render_element($element) {
 
     $element['#attached']['js'][] = array(
       'type' => 'setting',
-      'data' => array('ajax' => array($element['#id'] => $settings)),
+      'data' => array(
+        'ajax' => array($element['#id'] => $settings),
+        'urlIsAjaxTrusted' => array(
+          $settings['url'] => TRUE,
+        ),
+      ),
     );
 
     // Indicate that Ajax processing was successful.

includes/batch.inc

@@ -460,10 +460,10 @@ function _batch_finished() {
       if (isset($batch_set['file']) && is_file($batch_set['file'])) {
         include_once DRUPAL_ROOT . '/' . $batch_set['file'];
       }
-      if (function_exists($batch_set['finished'])) {
+      if (is_callable($batch_set['finished'])) {
         $queue = _batch_queue($batch_set);
         $operations = $queue->getAllItems();
-        $batch_set['finished']($batch_set['success'], $batch_set['results'], $operations, format_interval($batch_set['elapsed'] / 1000));
+        call_user_func($batch_set['finished'], $batch_set['success'], $batch_set['results'], $operations, format_interval($batch_set['elapsed'] / 1000));
       }
     }
   }

includes/bootstrap.inc

@@ -8,7 +8,7 @@
 /**
  * The current system version.
  */
-define('VERSION', '7.34');
+define('VERSION', '7.53');
 
 /**
  * Core API compatibility.
@@ -529,9 +529,8 @@ function timer_stop($name) {
  * Returns the appropriate configuration directory.
  *
  * Returns the configuration path based on the site's hostname, port, and
- * pathname. Uses find_conf_path() to find the current configuration directory.
- * See default.settings.php for examples on how the URL is converted to a
- * directory.
+ * pathname. See default.settings.php for examples on how the URL is converted
+ * to a directory.
  *
  * @param bool $require_settings
  *   Only configuration directories with an existing settings.php file
@@ -829,14 +828,21 @@ function drupal_settings_initialize() {
  * @param $filename
  *   The filename of the item if it is to be set explicitly rather
  *   than by consulting the database.
+ * @param bool $trigger_error
+ *   Whether to trigger an error when a file is missing or has unexpectedly
+ *   moved. This defaults to TRUE, but can be set to FALSE by calling code that
+ *   merely wants to check whether an item exists in the filesystem.
  *
  * @return
  *   The filename of the requested item or NULL if the item is not found.
  */
-function drupal_get_filename($type, $name, $filename = NULL) {
+function drupal_get_filename($type, $name, $filename = NULL, $trigger_error = TRUE) {
+  // The $files static variable will hold the locations of all requested files.
+  // We can be sure that any file listed in this static variable actually
+  // exists as all additions have gone through a file_exists() check.
   // The location of files will not change during the request, so do not use
   // drupal_static().
-  static $files = array(), $dirs = array();
+  static $files = array();
 
   // Profiles are a special case: they have a fixed location and naming.
   if ($type == 'profile') {
@@ -848,64 +854,296 @@ function drupal_get_filename($type, $name, $filename = NULL) {
   }
 
   if (!empty($filename) && file_exists($filename)) {
+    // Prime the static cache with the provided filename.
     $files[$type][$name] = $filename;
   }
   elseif (isset($files[$type][$name])) {
-    // nothing
+    // This item had already been found earlier in the request, either through
+    // priming of the static cache (for example, in system_list()), through a
+    // lookup in the {system} table, or through a file scan (cached or not). Do
+    // nothing.
   }
-  // Verify that we have an active database connection, before querying
-  // the database. This is required because this function is called both
-  // before we have a database connection (i.e. during installation) and
-  // when a database connection fails.
   else {
+    // Look for the filename listed in the {system} table. Verify that we have
+    // an active database connection before doing so, since this function is
+    // called both before we have a database connection (i.e. during
+    // installation) and when a database connection fails.
+    $database_unavailable = TRUE;
     try {
       if (function_exists('db_query')) {
         $file = db_query("SELECT filename FROM {system} WHERE name = :name AND type = :type", array(':name' => $name, ':type' => $type))->fetchField();
         if ($file !== FALSE && file_exists(DRUPAL_ROOT . '/' . $file)) {
           $files[$type][$name] = $file;
         }
+        $database_unavailable = FALSE;
       }
     }
     catch (Exception $e) {
       // The database table may not exist because Drupal is not yet installed,
-      // or the database might be down. We have a fallback for this case so we
-      // hide the error completely.
+      // the database might be down, or we may have done a non-database cache
+      // flush while $conf['page_cache_without_database'] = TRUE and
+      // $conf['page_cache_invoke_hooks'] = TRUE. We have a fallback for these
+      // cases so we hide the error completely.
     }
-    // Fallback to searching the filesystem if the database could not find the
-    // file or the file returned by the database is not found.
+    // Fall back to searching the filesystem if the database could not find the
+    // file or the file does not exist at the path returned by the database.
     if (!isset($files[$type][$name])) {
-      // We have a consistent directory naming: modules, themes...
-      $dir = $type . 's';
-      if ($type == 'theme_engine') {
-        $dir = 'themes/engines';
-        $extension = 'engine';
-      }
-      elseif ($type == 'theme') {
-        $extension = 'info';
-      }
-      else {
-        $extension = $type;
-      }
+      $files[$type][$name] = _drupal_get_filename_fallback($type, $name, $trigger_error, $database_unavailable);
+    }
+  }
 
-      if (!isset($dirs[$dir][$extension])) {
-        $dirs[$dir][$extension] = TRUE;
-        if (!function_exists('drupal_system_listing')) {
-          require_once DRUPAL_ROOT . '/includes/common.inc';
-        }
-        // Scan the appropriate directories for all files with the requested
-        // extension, not just the file we are currently looking for. This
-        // prevents unnecessary scans from being repeated when this function is
-        // called more than once in the same page request.
-        $matches = drupal_system_listing("/^" . DRUPAL_PHP_FUNCTION_PATTERN . "\.$extension$/", $dir, 'name', 0);
-        foreach ($matches as $matched_name => $file) {
-          $files[$type][$matched_name] = $file->uri;
+  if (isset($files[$type][$name])) {
+    return $files[$type][$name];
+  }
+}
+
+/**
+ * Performs a cached file system scan as a fallback when searching for a file.
+ *
+ * This function looks for the requested file by triggering a file scan,
+ * caching the new location if the file has moved and caching the miss
+ * if the file is missing. If a file had been marked as missing in a previous
+ * file scan, or if it has been marked as moved and is still in the last known
+ * location, no new file scan will be performed.
+ *
+ * @param string $type
+ *   The type of the item (theme, theme_engine, module, profile).
+ * @param string $name
+ *   The name of the item for which the filename is requested.
+ * @param bool $trigger_error
+ *   Whether to trigger an error when a file is missing or has unexpectedly
+ *   moved.
+ * @param bool $database_unavailable
+ *   Whether this function is being called because the Drupal database could
+ *   not be queried for the file's location.
+ *
+ * @return
+ *   The filename of the requested item or NULL if the item is not found.
+ *
+ * @see drupal_get_filename()
+ */
+function _drupal_get_filename_fallback($type, $name, $trigger_error, $database_unavailable) {
+  $file_scans = &_drupal_file_scan_cache();
+  $filename = NULL;
+
+  // If the cache indicates that the item is missing, or we can verify that the
+  // item exists in the location the cache says it exists in, use that.
+  if (isset($file_scans[$type][$name]) && ($file_scans[$type][$name] === FALSE || file_exists($file_scans[$type][$name]))) {
+    $filename = $file_scans[$type][$name];
+  }
+  // Otherwise, perform a new file scan to find the item.
+  else {
+    $filename = _drupal_get_filename_perform_file_scan($type, $name);
+    // Update the static cache, and mark the persistent cache for updating at
+    // the end of the page request. See drupal_file_scan_write_cache().
+    $file_scans[$type][$name] = $filename;
+    $file_scans['#write_cache'] = TRUE;
+  }
+
+  // If requested, trigger a user-level warning about the missing or
+  // unexpectedly moved file. If the database was unavailable, do not trigger a
+  // warning in the latter case, though, since if the {system} table could not
+  // be queried there is no way to know if the location found here was
+  // "unexpected" or not.
+  if ($trigger_error) {
+    $error_type = $filename === FALSE ? 'missing' : 'moved';
+    if ($error_type == 'missing' || !$database_unavailable) {
+      _drupal_get_filename_fallback_trigger_error($type, $name, $error_type);
+    }
+  }
+
+  // The cache stores FALSE for files that aren't found (to be able to
+  // distinguish them from files that have not yet been searched for), but
+  // drupal_get_filename() expects NULL for these instead, so convert to NULL
+  // before returning.
+  if ($filename === FALSE) {
+    $filename = NULL;
+  }
+  return $filename;
+}
+
+/**
+ * Returns the current list of cached file system scan results.
+ *
+ * @return
+ *   An associative array tracking the most recent file scan results for all
+ *   files that have had scans performed. The keys are the type and name of the
+ *   item that was searched for, and the values can be either:
+ *   - Boolean FALSE if the item was not found in the file system.
+ *   - A string pointing to the location where the item was found.
+ */
+function &_drupal_file_scan_cache() {
+  $file_scans = &drupal_static(__FUNCTION__, array());
+
+  // The file scan results are stored in a persistent cache (in addition to the
+  // static cache) but because this function can be called before the
+  // persistent cache is available, we must merge any items that were found
+  // earlier in the page request into the results from the persistent cache.
+  if (!isset($file_scans['#cache_merge_done'])) {
+    try {
+      if (function_exists('cache_get')) {
+        $cache = cache_get('_drupal_file_scan_cache', 'cache_bootstrap');
+        if (!empty($cache->data)) {
+          // File scan results from the current request should take precedence
+          // over the results from the persistent cache, since they are newer.
+          $file_scans = drupal_array_merge_deep($cache->data, $file_scans);
         }
+        // Set a flag to indicate that the persistent cache does not need to be
+        // merged again.
+        $file_scans['#cache_merge_done'] = TRUE;
       }
     }
+    catch (Exception $e) {
+      // Hide the error.
+    }
   }
 
-  if (isset($files[$type][$name])) {
-    return $files[$type][$name];
+  return $file_scans;
+}
+
+/**
+ * Performs a file system scan to search for a system resource.
+ *
+ * @param $type
+ *   The type of the item (theme, theme_engine, module, profile).
+ * @param $name
+ *   The name of the item for which the filename is requested.
+ *
+ * @return
+ *   The filename of the requested item or FALSE if the item is not found.
+ *
+ * @see drupal_get_filename()
+ * @see _drupal_get_filename_fallback()
+ */
+function _drupal_get_filename_perform_file_scan($type, $name) {
+  // The location of files will not change during the request, so do not use
+  // drupal_static().
+  static $dirs = array(), $files = array();
+
+  // We have a consistent directory naming: modules, themes...
+  $dir = $type . 's';
+  if ($type == 'theme_engine') {
+    $dir = 'themes/engines';
+    $extension = 'engine';
+  }
+  elseif ($type == 'theme') {
+    $extension = 'info';
+  }
+  else {
+    $extension = $type;
+  }
+
+  // Check if we had already scanned this directory/extension combination.
+  if (!isset($dirs[$dir][$extension])) {
+    // Log that we have now scanned this directory/extension combination
+    // into a static variable so as to prevent unnecessary file scans.
+    $dirs[$dir][$extension] = TRUE;
+    if (!function_exists('drupal_system_listing')) {
+      require_once DRUPAL_ROOT . '/includes/common.inc';
+    }
+    // Scan the appropriate directories for all files with the requested
+    // extension, not just the file we are currently looking for. This
+    // prevents unnecessary scans from being repeated when this function is
+    // called more than once in the same page request.
+    $matches = drupal_system_listing("/^" . DRUPAL_PHP_FUNCTION_PATTERN . "\.$extension$/", $dir, 'name', 0);
+    foreach ($matches as $matched_name => $file) {
+      // Log the locations found in the file scan into a static variable.
+      $files[$type][$matched_name] = $file->uri;
+    }
+  }
+
+  // Return the results of the file system scan, or FALSE to indicate the file
+  // was not found.
+  return isset($files[$type][$name]) ? $files[$type][$name] : FALSE;
+}
+
+/**
+ * Triggers a user-level warning for missing or unexpectedly moved files.
+ *
+ * @param $type
+ *   The type of the item (theme, theme_engine, module, profile).
+ * @param $name
+ *   The name of the item for which the filename is requested.
+ * @param $error_type
+ *   The type of the error ('missing' or 'moved').
+ *
+ * @see drupal_get_filename()
+ * @see _drupal_get_filename_fallback()
+ */
+function _drupal_get_filename_fallback_trigger_error($type, $name, $error_type) {
+  // Hide messages due to known bugs that will appear on a lot of sites.
+  // @todo Remove this in https://www.drupal.org/node/2383823
+  if (empty($name)) {
+    return;
+  }
+
+  // Make sure we only show any missing or moved file errors only once per
+  // request.
+  static $errors_triggered = array();
+  if (empty($errors_triggered[$type][$name][$error_type])) {
+    // Use _drupal_trigger_error_with_delayed_logging() here since these are
+    // triggered during low-level operations that cannot necessarily be
+    // interrupted by a watchdog() call.
+    if ($error_type == 'missing') {
+      _drupal_trigger_error_with_delayed_logging(format_string('The following @type is missing from the file system: %name. For information about how to fix this, see <a href="@documentation">the documentation page</a>.', array('@type' => $type, '%name' => $name, '@documentation' => 'https://www.drupal.org/node/2487215')), E_USER_WARNING);
+    }
+    elseif ($error_type == 'moved') {
+      _drupal_trigger_error_with_delayed_logging(format_string('The following @type has moved within the file system: %name. In order to fix this, clear caches or put the @type back in its original location. For more information, see <a href="@documentation">the documentation page</a>.', array('@type' => $type, '%name' => $name, '@documentation' => 'https://www.drupal.org/node/2487215')), E_USER_WARNING);
+    }
+    $errors_triggered[$type][$name][$error_type] = TRUE;
+  }
+}
+
+/**
+ * Invokes trigger_error() with logging delayed until the end of the request.
+ *
+ * This is an alternative to PHP's trigger_error() function which can be used
+ * during low-level Drupal core operations that need to avoid being interrupted
+ * by a watchdog() call.
+ *
+ * Normally, Drupal's error handler calls watchdog() in response to a
+ * trigger_error() call. However, this invokes hook_watchdog() which can run
+ * arbitrary code. If the trigger_error() happens in the middle of an
+ * operation such as a rebuild operation which should not be interrupted by
+ * arbitrary code, that could potentially break or trigger the rebuild again.
+ * This function protects against that by delaying the watchdog() call until
+ * the end of the current page request.
+ *
+ * This is an internal function which should only be called by low-level Drupal
+ * core functions. It may be removed in a future Drupal 7 release.
+ *
+ * @param string $error_msg
+ *   The error message to trigger. As with trigger_error() itself, this is
+ *   limited to 1024 bytes; additional characters beyond that will be removed.
+ * @param int $error_type
+ *   (optional) The type of error. This should be one of the E_USER family of
+ *   constants. As with trigger_error() itself, this defaults to E_USER_NOTICE
+ *   if not provided.
+ *
+ * @see _drupal_log_error()
+ */
+function _drupal_trigger_error_with_delayed_logging($error_msg, $error_type = E_USER_NOTICE) {
+  $delay_logging = &drupal_static(__FUNCTION__, FALSE);
+  $delay_logging = TRUE;
+  trigger_error($error_msg, $error_type);
+  $delay_logging = FALSE;
+}
+
+/**
+ * Writes the file scan cache to the persistent cache.
+ *
+ * This cache stores all files marked as missing or moved after a file scan
+ * to prevent unnecessary file scans in subsequent requests. This cache is
+ * cleared in system_list_reset() (i.e. after a module/theme rebuild).
+ */
+function drupal_file_scan_write_cache() {
+  // Only write to the persistent cache if requested, and if we know that any
+  // data previously in the cache was successfully loaded and merged in by
+  // _drupal_file_scan_cache().
+  $file_scans = &_drupal_file_scan_cache();
+  if (isset($file_scans['#write_cache']) && isset($file_scans['#cache_merge_done'])) {
+    unset($file_scans['#write_cache']);
+    cache_set('_drupal_file_scan_cache', $file_scans, 'cache_bootstrap');
   }
 }
 
@@ -1056,7 +1294,7 @@ function drupal_page_get_cache($check_only = FALSE) {
  * Determines the cacheability of the current page.
  *
  * @param $allow_caching
- *   Set to FALSE if you want to prevent this page to get cached.
+ *   Set to FALSE if you want to prevent this page from being cached.
  *
  * @return
  *   TRUE if the current page can be cached, FALSE otherwise.
@@ -1246,23 +1484,10 @@ function drupal_send_headers($default_headers = array(), $only_default = FALSE)
  * fresh page on every request. This prevents authenticated users from seeing
  * locally cached pages.
  *
- * Also give each page a unique ETag. This will force clients to include both
- * an If-Modified-Since header and an If-None-Match header when doing
- * conditional requests for the page (required by RFC 2616, section 13.3.4),
- * making the validation more robust. This is a workaround for a bug in Mozilla
- * Firefox that is triggered when Drupal's caching is enabled and the user
- * accesses Drupal via an HTTP proxy (see
- * https://bugzilla.mozilla.org/show_bug.cgi?id=269303): When an authenticated
- * user requests a page, and then logs out and requests the same page again,
- * Firefox may send a conditional request based on the page that was cached
- * locally when the user was logged in. If this page did not have an ETag
- * header, the request only contains an If-Modified-Since header. The date will
- * be recent, because with authenticated users the Last-Modified header always
- * refers to the time of the request. If the user accesses Drupal via a proxy
- * server, and the proxy already has a cached copy of the anonymous page with an
- * older Last-Modified date, the proxy may respond with 304 Not Modified, making
- * the client think that the anonymous and authenticated pageviews are
- * identical.
+ * ETag and Last-Modified headers are not set per default for authenticated
+ * users so that browsers do not send If-Modified-Since headers from
+ * authenticated user pages. drupal_serve_page_from_cache() will set appropriate
+ * ETag and Last-Modified headers for cached pages.
  *
  * @see drupal_page_set_cache()
  */
@@ -1275,9 +1500,11 @@ function drupal_page_header() {
 
   $default_headers = array(
     'Expires' => 'Sun, 19 Nov 1978 05:00:00 GMT',
-    'Last-Modified' => gmdate(DATE_RFC7231, REQUEST_TIME),
-    'Cache-Control' => 'no-cache, must-revalidate, post-check=0, pre-check=0',
-    'ETag' => '"' . REQUEST_TIME . '"',
+    'Cache-Control' => 'no-cache, must-revalidate',
+    // Prevent browsers from sniffing a response and picking a MIME type
+    // different from the declared content-type, since that can lead to
+    // XSS and other vulnerabilities.
+    'X-Content-Type-Options' => 'nosniff',
   );
   drupal_send_headers($default_headers);
 }
@@ -1451,6 +1678,23 @@ function drupal_unpack($obj, $field = 'data') {
  * available to code that needs localization. See st() and get_t() for
  * alternatives.
  *
+ * @section sec_context String context
+ * Matching source strings are normally only translated once, and the same
+ * translation is used everywhere that has a matching string. However, in some
+ * cases, a certain English source string needs to have multiple translations.
+ * One example of this is the string "May", which could be used as either a
+ * full month name or a 3-letter abbreviated month. In other languages where
+ * the month name for May has more than 3 letters, you would need to provide
+ * two different translations (one for the full name and one abbreviated), and
+ * the correct form would need to be chosen, depending on how "May" is being
+ * used. To facilitate this, the "May" string should be provided with two
+ * different contexts in the $options parameter when calling t(). For example:
+ * @code
+ * t('May', array(), array('context' => 'Long month name')
+ * t('May', array(), array('context' => 'Abbreviated month name')
+ * @endcode
+ * See https://localize.drupal.org/node/2109 for more information.
+ *
  * @param $string
  *   A string containing the English string to translate.
  * @param $args
@@ -1461,8 +1705,9 @@ function drupal_unpack($obj, $field = 'data') {
  *   An associative array of additional options, with the following elements:
  *   - 'langcode' (defaults to the current language): The language code to
  *     translate to a language other than what is used to display the page.
- *   - 'context' (defaults to the empty context): The context the source string
- *     belongs to.
+ *   - 'context' (defaults to the empty context): A string giving the context
+ *     that the source string belongs to. See @ref sec_context above for more
+ *     information.
  *
  * @return
  *   The translated string.
@@ -1659,14 +1904,14 @@ function request_uri() {
  *   information about the passed-in exception is used.
  * @param $variables
  *   Array of variables to replace in the message on display. Defaults to the
- *   return value of drupal_decode_exception().
+ *   return value of _drupal_decode_exception().
  * @param $severity
  *   The severity of the message, as per RFC 3164.
  * @param $link
  *   A link to associate with the message.
  *
  * @see watchdog()
- * @see drupal_decode_exception()
+ * @see _drupal_decode_exception()
  */
 function watchdog_exception($type, Exception $exception, $message = NULL, $variables = array(), $severity = WATCHDOG_ERROR, $link = NULL) {
 
@@ -1792,7 +2037,7 @@ function watchdog($type, $message, $variables = array(), $severity = WATCHDOG_NO
  * @see theme_status_messages()
  */
 function drupal_set_message($message = NULL, $type = 'status', $repeat = TRUE) {
-  if ($message) {
+  if ($message || $message === '0' || $message === 0) {
     if (!isset($_SESSION['messages'][$type])) {
       $_SESSION['messages'][$type] = array();
     }
@@ -2480,6 +2725,9 @@ function _drupal_bootstrap_database() {
   // the install or upgrade process.
   spl_autoload_register('drupal_autoload_class');
   spl_autoload_register('drupal_autoload_interface');
+  if (version_compare(PHP_VERSION, '5.4') >= 0) {
+    spl_autoload_register('drupal_autoload_trait');
+  }
 }
 
 /**
@@ -2497,6 +2745,26 @@ function _drupal_bootstrap_variables() {
   // Load bootstrap modules.
   require_once DRUPAL_ROOT . '/includes/module.inc';
   module_load_all(TRUE);
+
+  // Sanitize the destination parameter (which is often used for redirects) to
+  // prevent open redirect attacks leading to other domains. Sanitize both
+  // $_GET['destination'] and $_REQUEST['destination'] to protect code that
+  // relies on either, but do not sanitize $_POST to avoid interfering with
+  // unrelated form submissions. The sanitization happens here because
+  // url_is_external() requires the variable system to be available.
+  if (isset($_GET['destination']) || isset($_REQUEST['destination'])) {
+    require_once DRUPAL_ROOT . '/includes/common.inc';
+    // If the destination is an external URL, remove it.
+    if (isset($_GET['destination']) && url_is_external($_GET['destination'])) {
+      unset($_GET['destination']);
+      unset($_REQUEST['destination']);
+    }
+    // If there's still something in $_REQUEST['destination'] that didn't come
+    // from $_GET, check it too.
+    if (isset($_REQUEST['destination']) && (!isset($_GET['destination']) || $_REQUEST['destination'] != $_GET['destination']) && url_is_external($_REQUEST['destination'])) {
+      unset($_REQUEST['destination']);
+    }
+  }
 }
 
 /**
@@ -2633,7 +2901,7 @@ function drupal_installation_attempted() {
  *
  * This would include implementations of hook_install(), which could run
  * during the Drupal installation phase, and might also be run during
- * non-installation time, such as while installing the module from the the
+ * non-installation time, such as while installing the module from the
  * module administration page.
  *
  * Example usage:
@@ -2775,10 +3043,14 @@ function language_list($field = 'language') {
 }
 
 /**
- * Returns the default language used on the site
+ * Returns the default language, as an object, or one of its properties.
  *
  * @param $property
- *   Optional property of the language object to return
+ *   (optional) The property of the language object to return.
+ *
+ * @return
+ *   Either the language object for the default language used on the site,
+ *   or the property of that object named in the $property parameter.
  */
 function language_default($property = NULL) {
   $language = variable_get('language_default', (object) array('language' => 'en', 'name' => 'English', 'native' => 'English', 'direction' => 0, 'enabled' => 1, 'plurals' => 0, 'formula' => '', 'domain' => '', 'prefix' => '', 'weight' => 0, 'javascript' => ''));
@@ -2930,8 +3202,15 @@ function ip_address() {
         // Eliminate all trusted IPs.
         $untrusted = array_diff($forwarded, $reverse_proxy_addresses);
 
-        // The right-most IP is the most specific we can trust.
-        $ip_address = array_pop($untrusted);
+        if (!empty($untrusted)) {
+          // The right-most IP is the most specific we can trust.
+          $ip_address = array_pop($untrusted);
+        }
+        else {
+          // All IP addresses in the forwarded array are configured proxy IPs
+          // (and thus trusted). We take the leftmost IP.
+          $ip_address = array_shift($forwarded);
+        }
       }
     }
   }
@@ -2948,7 +3227,9 @@ function ip_address() {
  * Gets the schema definition of a table, or the whole database schema.
  *
  * The returned schema will include any modifications made by any
- * module that implements hook_schema_alter().
+ * module that implements hook_schema_alter(). To get the schema without
+ * modifications, use drupal_get_schema_unprocessed().
+ *
  *
  * @param $table
  *   The name of the table. If not given, the schema of all tables is returned.
@@ -3103,6 +3384,22 @@ function drupal_autoload_class($class) {
   return _registry_check_code('class', $class);
 }
 
+/**
+ * Confirms that a trait is available.
+ *
+ * This function is rarely called directly. Instead, it is registered as an
+ * spl_autoload() handler, and PHP calls it for us when necessary.
+ *
+ * @param string $trait
+ *   The name of the trait to check or load.
+ *
+ * @return bool
+ *   TRUE if the trait is currently available, FALSE otherwise.
+ */
+function drupal_autoload_trait($trait) {
+  return _registry_check_code('trait', $trait);
+}
+
 /**
  * Checks for a resource in the registry.
  *
@@ -3121,7 +3418,7 @@ function drupal_autoload_class($class) {
 function _registry_check_code($type, $name = NULL) {
   static $lookup_cache, $cache_update_needed;
 
-  if ($type == 'class' && class_exists($name) || $type == 'interface' && interface_exists($name)) {
+  if ($type == 'class' && class_exists($name) || $type == 'interface' && interface_exists($name) || $type == 'trait' && trait_exists($name)) {
     return TRUE;
   }
 
@@ -3154,7 +3451,7 @@ function _registry_check_code($type, $name = NULL) {
   $cache_key = $type[0] . $name;
   if (isset($lookup_cache[$cache_key])) {
     if ($lookup_cache[$cache_key]) {
-      require_once DRUPAL_ROOT . '/' . $lookup_cache[$cache_key];
+      include_once DRUPAL_ROOT . '/' . $lookup_cache[$cache_key];
     }
     return (bool) $lookup_cache[$cache_key];
   }
@@ -3162,10 +3459,13 @@ function _registry_check_code($type, $name = NULL) {
   // This function may get called when the default database is not active, but
   // there is no reason we'd ever want to not use the default database for
   // this query.
-  $file = Database::getConnection('default', 'default')->query("SELECT filename FROM {registry} WHERE name = :name AND type = :type", array(
-      ':name' => $name,
-      ':type' => $type,
-    ))
+  $file = Database::getConnection('default', 'default')
+    ->select('registry', 'r', array('target' => 'default'))
+    ->fields('r', array('filename'))
+    // Use LIKE here to make the query case-insensitive.
+    ->condition('r.name', db_like($name), 'LIKE')
+    ->condition('r.type', $type)
+    ->execute()
     ->fetchField();
 
   // Flag that we've run a lookup query and need to update the cache.
@@ -3176,7 +3476,7 @@ function _registry_check_code($type, $name = NULL) {
   $lookup_cache[$cache_key] = $file;
 
   if ($file) {
-    require_once DRUPAL_ROOT . '/' . $file;
+    include_once DRUPAL_ROOT . '/' . $file;
     return TRUE;
   }
   else {
@@ -3503,3 +3803,34 @@ function drupal_check_memory_limit($required, $memory_limit = NULL) {
   // - The memory limit is greater than the memory required for the operation.
   return ((!$memory_limit) || ($memory_limit == -1) || (parse_size($memory_limit) >= parse_size($required)));
 }
+
+/**
+ * Invalidates a PHP file from any active opcode caches.
+ *
+ * If the opcode cache does not support the invalidation of individual files,
+ * the entire cache will be flushed.
+ *
+ * @param string $filepath
+ *   The absolute path of the PHP file to invalidate.
+ */
+function drupal_clear_opcode_cache($filepath) {
+  if (!defined('PHP_VERSION_ID') || PHP_VERSION_ID < 50300) {
+    // Below PHP 5.3, clearstatcache does not accept any function parameters.
+    clearstatcache();
+  }
+  else {
+    clearstatcache(TRUE, $filepath);
+  }
+
+  // Zend OPcache.
+  if (function_exists('opcache_invalidate')) {
+    opcache_invalidate($filepath, TRUE);
+  }
+  // APC.
+  if (function_exists('apc_delete_file')) {
+    // apc_delete_file() throws a PHP warning in case the specified file was
+    // not compiled yet.
+    // @see http://php.net/apc-delete-file
+    @apc_delete_file($filepath);
+  }
+}

includes/cache.inc

@@ -14,6 +14,7 @@
  *
  * @param $bin
  *   The cache bin for which the cache object should be returned.
+ *
  * @return DrupalCacheInterface
  *   The cache object associated with the specified bin.
  *

includes/common.inc

@@ -688,6 +688,13 @@ function drupal_goto($path = '', array $options = array(), $http_response_code =
     $options['fragment'] = $destination['fragment'];
   }
 
+  // In some cases modules call drupal_goto(current_path()). We need to ensure
+  // that such a redirect is not to an external URL.
+  if ($path === current_path() && empty($options['external']) && url_is_external($path)) {
+    // Force url() to generate a non-external URL.
+    $options['external'] = FALSE;
+  }
+
   drupal_alter('drupal_goto', $path, $options, $http_response_code);
 
   // The 'Location' HTTP header must be absolute.
@@ -753,7 +760,8 @@ function drupal_access_denied() {
  *   - headers: An array containing request headers to send as name/value pairs.
  *   - method: A string containing the request method. Defaults to 'GET'.
  *   - data: A string containing the request body, formatted as
- *     'param=value&param=value&...'. Defaults to NULL.
+ *     'param=value&param=value&...'; to generate this, use http_build_query().
+ *     Defaults to NULL.
  *   - max_redirects: An integer representing how many times a redirect
  *     may be followed. Defaults to 3.
  *   - timeout: A float representing the maximum number of seconds the function
@@ -778,6 +786,8 @@ function drupal_access_denied() {
  *     HTTP header names are case-insensitive (RFC 2616, section 4.2), so for
  *     easy access the array keys are returned in lower case.
  *   - data: A string containing the response body that was received.
+ *
+ * @see http_build_query()
  */
 function drupal_http_request($url, array $options = array()) {
   // Allow an alternate HTTP client library to replace Drupal's default
@@ -1057,6 +1067,12 @@ function drupal_http_request($url, array $options = array()) {
 
   switch ($code) {
     case 200: // OK
+    case 201: // Created
+    case 202: // Accepted
+    case 203: // Non-Authoritative Information
+    case 204: // No Content
+    case 205: // Reset Content
+    case 206: // Partial Content
     case 304: // Not modified
       break;
     case 301: // Moved permanently
@@ -1522,7 +1538,7 @@ function _filter_xss_split($m, $store = FALSE) {
     return '<';
   }
 
-  if (!preg_match('%^<\s*(/\s*)?([a-zA-Z0-9]+)([^>]*)>?|(<!--.*?-->)$%', $string, $matches)) {
+  if (!preg_match('%^<\s*(/\s*)?([a-zA-Z0-9\-]+)([^>]*)>?|(<!--.*?-->)$%', $string, $matches)) {
     // Seriously malformed.
     return '';
   }
@@ -1754,9 +1770,15 @@ function format_rss_item($title, $link, $description, $args = array()) {
  *     - 'key': element name
  *     - 'value': element contents
  *     - 'attributes': associative array of element attributes
+ *     - 'encoded': TRUE if 'value' is already encoded
  *
  * In both cases, 'value' can be a simple string, or it can be another array
  * with the same format as $array itself for nesting.
+ *
+ * If 'encoded' is TRUE it is up to the caller to ensure that 'value' is either
+ * entity-encoded or CDATA-escaped. Using this option is not recommended when
+ * working with untrusted user input, since failing to escape the data
+ * correctly has security implications.
  */
 function format_xml_elements($array) {
   $output = '';
@@ -1769,7 +1791,7 @@ function format_xml_elements($array) {
         }
 
         if (isset($value['value']) && $value['value'] != '') {
-          $output .= '>' . (is_array($value['value']) ? format_xml_elements($value['value']) : check_plain($value['value'])) . '</' . $value['key'] . ">\n";
+          $output .= '>' . (is_array($value['value']) ? format_xml_elements($value['value']) : (!empty($value['encoded']) ? $value['value'] : check_plain($value['value']))) . '</' . $value['key'] . ">\n";
         }
         else {
           $output .= " />\n";
@@ -2215,13 +2237,7 @@ function url($path = NULL, array $options = array()) {
   );
 
   if (!isset($options['external'])) {
-    // Return an external link if $path contains an allowed absolute URL. Only
-    // call the slow drupal_strip_dangerous_protocols() if $path contains a ':'
-    // before any / ? or #. Note: we could use url_is_external($path) here, but
-    // that would require another function call, and performance inside url() is
-    // critical.
-    $colonpos = strpos($path, ':');
-    $options['external'] = ($colonpos !== FALSE && !preg_match('![/?#]!', substr($path, 0, $colonpos)) && drupal_strip_dangerous_protocols($path) == $path);
+    $options['external'] = url_is_external($path);
   }
 
   // Preserve the original path before altering or aliasing.
@@ -2259,6 +2275,11 @@ function url($path = NULL, array $options = array()) {
     return $path . $options['fragment'];
   }
 
+  // Strip leading slashes from internal paths to prevent them becoming external
+  // URLs without protocol. /example.com should not be turned into
+  // //example.com.
+  $path = ltrim($path, '/');
+
   global $base_url, $base_secure_url, $base_insecure_url;
 
   // The base_url might be rewritten from the language rewrite in domain mode.
@@ -2336,10 +2357,21 @@ function url($path = NULL, array $options = array()) {
  */
 function url_is_external($path) {
   $colonpos = strpos($path, ':');
-  // Avoid calling drupal_strip_dangerous_protocols() if there is any
-  // slash (/), hash (#) or question_mark (?) before the colon (:)
-  // occurrence - if any - as this would clearly mean it is not a URL.
-  return $colonpos !== FALSE && !preg_match('![/?#]!', substr($path, 0, $colonpos)) && drupal_strip_dangerous_protocols($path) == $path;
+  // Some browsers treat \ as / so normalize to forward slashes.
+  $path = str_replace('\\', '/', $path);
+  // If the path starts with 2 slashes then it is always considered an external
+  // URL without an explicit protocol part.
+  return (strpos($path, '//') === 0)
+    // Leading control characters may be ignored or mishandled by browsers, so
+    // assume such a path may lead to an external location. The \p{C} character
+    // class matches all UTF-8 control, unassigned, and private characters.
+    || (preg_match('/^\p{C}/u', $path) !== 0)
+    // Avoid calling drupal_strip_dangerous_protocols() if there is any slash
+    // (/), hash (#) or question_mark (?) before the colon (:) occurrence - if
+    // any - as this would clearly mean it is not a URL.
+    || ($colonpos !== FALSE
+      && !preg_match('![/?#]!', substr($path, 0, $colonpos))
+      && drupal_strip_dangerous_protocols($path) == $path);
 }
 
 /**
@@ -2621,6 +2653,15 @@ function drupal_deliver_html_page($page_callback_result) {
   global $language;
   drupal_add_http_header('Content-Language', $language->language);
 
+  // By default, do not allow the site to be rendered in an iframe on another
+  // domain, but provide a variable to override this. If the code running for
+  // this page request already set the X-Frame-Options header earlier, don't
+  // overwrite it here.
+  $frame_options = variable_get('x_frame_options', 'SAMEORIGIN');
+  if ($frame_options && is_null(drupal_get_http_header('X-Frame-Options'))) {
+    drupal_add_http_header('X-Frame-Options', $frame_options);
+  }
+
   // Menu status constants are integers; page content is a string or array.
   if (is_int($page_callback_result)) {
     // @todo: Break these up into separate functions?
@@ -2636,7 +2677,10 @@ function drupal_deliver_html_page($page_callback_result) {
 
         // Keep old path for reference, and to allow forms to redirect to it.
         if (!isset($_GET['destination'])) {
-          $_GET['destination'] = $_GET['q'];
+          // Make sure that the current path is not interpreted as external URL.
+          if (!url_is_external($_GET['q'])) {
+            $_GET['destination'] = $_GET['q'];
+          }
         }
 
         $path = drupal_get_normal_path(variable_get('site_404', ''));
@@ -2665,7 +2709,10 @@ function drupal_deliver_html_page($page_callback_result) {
 
         // Keep old path for reference, and to allow forms to redirect to it.
         if (!isset($_GET['destination'])) {
-          $_GET['destination'] = $_GET['q'];
+          // Make sure that the current path is not interpreted as external URL.
+          if (!url_is_external($_GET['q'])) {
+            $_GET['destination'] = $_GET['q'];
+          }
         }
 
         $path = drupal_get_normal_path(variable_get('site_403', ''));
@@ -2729,6 +2776,7 @@ function drupal_page_footer() {
   _registry_check_code(REGISTRY_WRITE_LOOKUP_CACHE);
   drupal_cache_system_paths();
   module_implements_write_cache();
+  drupal_file_scan_write_cache();
   system_run_automated_cron();
 }
 
@@ -2790,11 +2838,11 @@ function drupal_map_assoc($array, $function = NULL) {
  * into script execution a call such as set_time_limit(20) is made, the
  * script will run for a total of 45 seconds before timing out.
  *
- * It also means that it is possible to decrease the total time limit if
- * the sum of the new time limit and the current time spent running the
- * script is inferior to the original time limit. It is inherent to the way
- * set_time_limit() works, it should rather be called with an appropriate
- * value every time you need to allocate a certain amount of time
+ * If the current time limit is not unlimited it is possible to decrease the
+ * total time limit if the sum of the new time limit and the current time spent
+ * running the script is inferior to the original time limit. It is inherent to
+ * the way set_time_limit() works, it should rather be called with an
+ * appropriate value every time you need to allocate a certain amount of time
  * to execute a task than only once at the beginning of the script.
  *
  * Before calling set_time_limit(), we check if this function is available
@@ -2811,7 +2859,11 @@ function drupal_map_assoc($array, $function = NULL) {
  */
 function drupal_set_time_limit($time_limit) {
   if (function_exists('set_time_limit')) {
-    @set_time_limit($time_limit);
+    $current = ini_get('max_execution_time');
+    // Do not set time limit if it is currently unlimited.
+    if ($current != 0) {
+      @set_time_limit($time_limit);
+    }
   }
 }
 
@@ -2992,6 +3044,13 @@ function drupal_add_html_head_link($attributes, $header = FALSE) {
  */
 function drupal_add_css($data = NULL, $options = NULL) {
   $css = &drupal_static(__FUNCTION__, array());
+  $count = &drupal_static(__FUNCTION__ . '_count', 0);
+
+  // If the $css variable has been reset with drupal_static_reset(), there is
+  // no longer any CSS being tracked, so set the counter back to 0 also.
+  if (count($css) === 0) {
+    $count = 0;
+  }
 
   // Construct the options, taking the defaults into consideration.
   if (isset($options)) {
@@ -3027,7 +3086,8 @@ function drupal_add_css($data = NULL, $options = NULL) {
     }
 
     // Always add a tiny value to the weight, to conserve the insertion order.
-    $options['weight'] += count($css) / 1000;
+    $options['weight'] += $count / 1000;
+    $count++;
 
     // Add the data to the CSS array depending on the type.
     switch ($options['type']) {
@@ -3780,7 +3840,7 @@ function drupal_load_stylesheet_content($contents, $optimize = FALSE) {
 
   // Replaces @import commands with the actual stylesheet content.
   // This happens recursively but omits external files.
-  $contents = preg_replace_callback('/@import\s*(?:url\(\s*)?[\'"]?(?![a-z]+:)([^\'"\()]+)[\'"]?\s*\)?\s*;/', '_drupal_load_stylesheet', $contents);
+  $contents = preg_replace_callback('/@import\s*(?:url\(\s*)?[\'"]?(?![a-z]+:)(?!\/\/)([^\'"\()]+)[\'"]?\s*\)?\s*;/', '_drupal_load_stylesheet', $contents);
   return $contents;
 }
 
@@ -3840,6 +3900,21 @@ function drupal_delete_file_if_stale($uri) {
  *   The cleaned identifier.
  */
 function drupal_clean_css_identifier($identifier, $filter = array(' ' => '-', '_' => '-', '/' => '-', '[' => '-', ']' => '')) {
+  // Use the advanced drupal_static() pattern, since this is called very often.
+  static $drupal_static_fast;
+  if (!isset($drupal_static_fast)) {
+    $drupal_static_fast['allow_css_double_underscores'] = &drupal_static(__FUNCTION__ . ':allow_css_double_underscores');
+  }
+  $allow_css_double_underscores = &$drupal_static_fast['allow_css_double_underscores'];
+  if (!isset($allow_css_double_underscores)) {
+    $allow_css_double_underscores = variable_get('allow_css_double_underscores', FALSE);
+  }
+
+  // Preserve BEM-style double-underscores depending on custom setting.
+  if ($allow_css_double_underscores) {
+    $filter['__'] = '__';
+  }
+
   // By default, we filter using Drupal's coding standards.
   $identifier = strtr($identifier, $filter);
 
@@ -4140,6 +4215,13 @@ function drupal_region_class($region) {
  *       else being the same, JavaScript added by a call to drupal_add_js() that
  *       happened later in the page request gets added to the page after one for
  *       which drupal_add_js() happened earlier in the page request.
+ *   - requires_jquery: Set this to FALSE if the JavaScript you are adding does
+ *     not have a dependency on jQuery. Defaults to TRUE, except for JavaScript
+ *     settings where it defaults to FALSE. This is used on sites that have the
+ *     'javascript_always_use_jquery' variable set to FALSE; on those sites, if
+ *     all the JavaScript added to the page by drupal_add_js() does not have a
+ *     dependency on jQuery, then for improved front-end performance Drupal
+ *     will not add jQuery and related libraries and settings to the page.
  *   - defer: If set to TRUE, the defer attribute is set on the <script>
  *     tag. Defaults to FALSE.
  *   - cache: If set to FALSE, the JavaScript file is loaded anew on every page
@@ -4157,6 +4239,14 @@ function drupal_region_class($region) {
  */
 function drupal_add_js($data = NULL, $options = NULL) {
   $javascript = &drupal_static(__FUNCTION__, array());
+  $jquery_added = &drupal_static(__FUNCTION__ . ':jquery_added', FALSE);
+
+  // If the $javascript variable has been reset with drupal_static_reset(),
+  // jQuery and related files will have been removed from the list, so set the
+  // variable back to FALSE to indicate they have not yet been added.
+  if (empty($javascript)) {
+    $jquery_added = FALSE;
+  }
 
   // Construct the options, taking the defaults into consideration.
   if (isset($options)) {
@@ -4167,6 +4257,9 @@ function drupal_add_js($data = NULL, $options = NULL) {
   else {
     $options = array();
   }
+  if (isset($options['type']) && $options['type'] == 'setting') {
+    $options += array('requires_jquery' => FALSE);
+  }
   $options += drupal_js_defaults($data);
 
   // Preprocess can only be set if caching is enabled.
@@ -4177,14 +4270,18 @@ function drupal_add_js($data = NULL, $options = NULL) {
   $options['weight'] += count($javascript) / 1000;
 
   if (isset($data)) {
-    // Add jquery.js and drupal.js, as well as the basePath setting, the
-    // first time a JavaScript file is added.
-    if (empty($javascript)) {
+    // Add jquery.js, drupal.js, and related files and settings if they have
+    // not been added yet. However, if the 'javascript_always_use_jquery'
+    // variable is set to FALSE (indicating that the site does not want jQuery
+    // automatically added on all pages) then only add it if a file or setting
+    // that requires jQuery is being added also.
+    if (!$jquery_added && (variable_get('javascript_always_use_jquery', TRUE) || $options['requires_jquery'])) {
+      $jquery_added = TRUE;
       // url() generates the prefix using hook_url_outbound_alter(). Instead of
       // running the hook_url_outbound_alter() again here, extract the prefix
       // from url().
       url('', array('prefix' => &$prefix));
-      $javascript = array(
+      $default_javascript = array(
         'settings' => array(
           'data' => array(
             array('basePath' => base_path()),
@@ -4203,11 +4300,13 @@ function drupal_add_js($data = NULL, $options = NULL) {
           'group' => JS_LIBRARY,
           'every_page' => TRUE,
           'weight' => -1,
+          'requires_jquery' => TRUE,
           'preprocess' => TRUE,
           'cache' => TRUE,
           'defer' => FALSE,
         ),
       );
+      $javascript = drupal_array_merge_deep($javascript, $default_javascript);
       // Register all required libraries.
       drupal_add_library('system', 'jquery', TRUE);
       drupal_add_library('system', 'jquery.once', TRUE);
@@ -4248,6 +4347,7 @@ function drupal_js_defaults($data = NULL) {
     'group' => JS_DEFAULT,
     'every_page' => FALSE,
     'weight' => 0,
+    'requires_jquery' => TRUE,
     'scope' => 'header',
     'cache' => TRUE,
     'defer' => FALSE,
@@ -4294,7 +4394,12 @@ function drupal_get_js($scope = 'header', $javascript = NULL, $skip_alter = FALS
   if (!isset($javascript)) {
     $javascript = drupal_add_js();
   }
-  if (empty($javascript)) {
+
+  // If no JavaScript items have been added, or if the only JavaScript items
+  // that have been added are JavaScript settings (which don't do anything
+  // without any JavaScript code to use them), then no JavaScript code should
+  // be added to the page.
+  if (empty($javascript) || (isset($javascript['settings']) && count($javascript) == 1)) {
     return '';
   }
 
@@ -4448,8 +4553,8 @@ function drupal_get_js($scope = 'header', $javascript = NULL, $skip_alter = FALS
  *
  * Libraries, JavaScript, CSS and other types of custom structures are attached
  * to elements using the #attached property. The #attached property is an
- * associative array, where the keys are the the attachment types and the values
- * are the attached data. For example:
+ * associative array, where the keys are the attachment types and the values are
+ * the attached data. For example:
  * @code
  * $build['#attached'] = array(
  *   'js' => array(drupal_get_path('module', 'taxonomy') . '/taxonomy.js'),
@@ -5160,6 +5265,11 @@ function _drupal_bootstrap_full() {
   fix_gpc_magic();
   // Load all enabled modules
   module_load_all();
+  // Reset drupal_alter() and module_implements() static caches as these
+  // include implementations for vital modules only when called early on
+  // in the bootstrap.
+  drupal_static_reset('drupal_alter');
+  drupal_static_reset('module_implements');
   // Make sure all stream wrappers are registered.
   file_get_stream_wrappers();
   // Ensure mt_rand is reseeded, to prevent random values from one page load
@@ -5256,8 +5366,8 @@ function drupal_page_set_cache() {
  *
  * Do not call this function from a test. Use $this->cronRun() instead.
  *
- * @return
- *   TRUE if cron ran successfully.
+ * @return bool
+ *   TRUE if cron ran successfully and FALSE if cron is already running.
  */
 function drupal_cron_run() {
   // Allow execution to continue even if the request gets canceled.
@@ -5319,12 +5429,12 @@ function drupal_cron_run() {
       // Do not run if queue wants to skip.
       continue;
     }
-    $function = $info['worker callback'];
+    $callback = $info['worker callback'];
     $end = time() + (isset($info['time']) ? $info['time'] : 15);
     $queue = DrupalQueue::get($queue_name);
     while (time() < $end && ($item = $queue->claimItem())) {
       try {
-        $function($item->data);
+        call_user_func($callback, $item->data);
         $queue->deleteItem($item);
       }
       catch (Exception $e) {
@@ -6277,13 +6387,21 @@ function drupal_render_cid_parts($granularity = NULL) {
   }
 
   if (!empty($granularity)) {
+    $cache_per_role = $granularity & DRUPAL_CACHE_PER_ROLE;
+    $cache_per_user = $granularity & DRUPAL_CACHE_PER_USER;
+    // User 1 has special permissions outside of the role system, so when
+    // caching per role is requested, it should cache per user instead.
+    if ($user->uid == 1 && $cache_per_role) {
+      $cache_per_user = TRUE;
+      $cache_per_role = FALSE;
+    }
     // 'PER_ROLE' and 'PER_USER' are mutually exclusive. 'PER_USER' can be a
     // resource drag for sites with many users, so when a module is being
     // equivocal, we favor the less expensive 'PER_ROLE' pattern.
-    if ($granularity & DRUPAL_CACHE_PER_ROLE) {
+    if ($cache_per_role) {
       $cid_parts[] = 'r.' . implode(',', array_keys($user->roles));
     }
-    elseif ($granularity & DRUPAL_CACHE_PER_USER) {
+    elseif ($cache_per_user) {
       $cid_parts[] = "u.$user->uid";
     }
 
@@ -7023,7 +7141,8 @@ function drupal_uninstall_schema($module) {
  * specification of a schema, as it was defined in a module's
  * hook_schema(). No additional default values will be set,
  * hook_schema_alter() is not invoked and these unprocessed
- * definitions won't be cached.
+ * definitions won't be cached. To retrieve the schema after
+ * hook_schema_alter() has been invoked use drupal_get_schema().
  *
  * This function can be used to retrieve a schema specification in
  * hook_schema(), so it allows you to derive your tables from existing
@@ -7085,6 +7204,24 @@ function _drupal_schema_initialize(&$schema, $module, $remove_descriptions = TRU
   }
 }
 
+/**
+ * Retrieves the type for every field in a table schema.
+ *
+ * @param $table
+ *   The name of the table from which to retrieve type information.
+ *
+ * @return
+ *   An array of types, keyed by field name.
+ */
+function drupal_schema_field_types($table) {
+  $table_schema = drupal_get_schema($table);
+  $field_types = array();
+  foreach ($table_schema['fields'] as $field_name => $field_info) {
+    $field_types[$field_name] = isset($field_info['type']) ? $field_info['type'] : NULL;
+  }
+  return $field_types;
+}
+
 /**
  * Retrieves a list of fields from a table schema.
  *
@@ -7286,7 +7423,16 @@ function drupal_write_record($table, &$record, $primary_keys = array()) {
  * Information stored in a module .info file:
  * - name: The real name of the module for display purposes.
  * - description: A brief description of the module.
- * - dependencies: An array of shortnames of other modules this module requires.
+ * - dependencies: An array of dependency strings. Each is in the form
+ *   'project:module (versions)'; with the following meanings:
+ *   - project: (optional) Project shortname, recommended to ensure uniqueness,
+ *     if the module is part of a project hosted on drupal.org. If omitted,
+ *     also omit the : that follows. The project name is currently ignored by
+ *     Drupal core but is used for automated testing.
+ *   - module: (required) Module shortname within the project.
+ *   - (versions): Optional version information, consisting of one or more
+ *     comma-separated operator/value pairs or simply version numbers, which
+ *     can contain "x" as a wildcard. Examples: (>=7.22, <7.28), (7.x-3.x).
  * - package: The name of the package of modules this module belongs to.
  *
  * See forum.info for an example of a module .info file.
@@ -7366,7 +7512,6 @@ function drupal_parse_info_file($filename) {
  */
 function drupal_parse_info_format($data) {
   $info = array();
-  $constants = get_defined_constants();
 
   if (preg_match_all('
     @^\s*                           # Start at the beginning of a line, ignoring leading whitespace
@@ -7406,8 +7551,8 @@ function drupal_parse_info_format($data) {
       }
 
       // Handle PHP constants.
-      if (isset($constants[$value])) {
-        $value = $constants[$value];
+      if (preg_match('/^\w+$/i', $value) && defined($value)) {
+        $value = constant($value);
       }
 
       // Insert actual value.
@@ -7571,7 +7716,12 @@ function debug($data, $label = NULL, $print_r = FALSE) {
  * Parses a dependency for comparison by drupal_check_incompatibility().
  *
  * @param $dependency
- *   A dependency string, for example 'foo (>=7.x-4.5-beta5, 3.x)'.
+ *   A dependency string, which specifies a module dependency, and optionally
+ *   the project it comes from and versions that are supported. Supported
+ *   formats include:
+ *   - 'module'
+ *   - 'project:module'
+ *   - 'project:module (>=version, version)'
  *
  * @return
  *   An associative array with three keys:
@@ -7586,6 +7736,12 @@ function debug($data, $label = NULL, $print_r = FALSE) {
  * @see drupal_check_incompatibility()
  */
 function drupal_parse_dependency($dependency) {
+  $value = array();
+  // Split out the optional project name.
+  if (strpos($dependency, ':')) {
+    list($project_name, $dependency) = explode(':', $dependency);
+    $value['project'] = $project_name;
+  }
   // We use named subpatterns and support every op that version_compare
   // supports. Also, op is optional and defaults to equals.
   $p_op = '(?P<operation>!=|==|=|<|<=|>|>=|<>)?';
@@ -7594,7 +7750,6 @@ function drupal_parse_dependency($dependency) {
   $p_major = '(?P<major>\d+)';
   // By setting the minor version to x, branches can be matched.
   $p_minor = '(?P<minor>(?:\d+|x)(?:-[A-Za-z]+\d+)?)';
-  $value = array();
   $parts = explode('(', $dependency, 2);
   $value['name'] = trim($parts[0]);
   if (isset($parts[1])) {
@@ -7709,6 +7864,7 @@ function entity_get_info($entity_type = NULL) {
         // Prepare entity schema fields SQL info for
         // DrupalEntityControllerInterface::buildQuery().
         if (isset($entity_info[$name]['base table'])) {
+          $entity_info[$name]['base table field types'] = drupal_schema_field_types($entity_info[$name]['base table']);
           $entity_info[$name]['schema_fields_sql']['base table'] = drupal_schema_fields_sql($entity_info[$name]['base table']);
           if (isset($entity_info[$name]['revision table'])) {
             $entity_info[$name]['schema_fields_sql']['revision table'] = drupal_schema_fields_sql($entity_info[$name]['revision table']);

includes/database/database.inc

@@ -296,6 +296,20 @@ abstract class DatabaseConnection extends PDO {
    */
   protected $prefixReplace = array();
 
+  /**
+   * List of escaped database, table, and field names, keyed by unescaped names.
+   *
+   * @var array
+   */
+  protected $escapedNames = array();
+
+  /**
+   * List of escaped aliases names, keyed by unescaped aliases.
+   *
+   * @var array
+   */
+  protected $escapedAliases = array();
+
   function __construct($dsn, $username, $password, $driver_options = array()) {
     // Initialize and prepare the connection prefix.
     $this->setPrefix(isset($this->connectionOptions['prefix']) ? $this->connectionOptions['prefix'] : '');
@@ -626,7 +640,7 @@ abstract class DatabaseConnection extends PDO {
    *   A sanitized version of the query comment string.
    */
   protected function filterComment($comment = '') {
-    return preg_replace('/(\/\*\s*)|(\s*\*\/)/', '', $comment);
+    return strtr($comment, array('*' => ' * '));
   }
 
   /**
@@ -656,7 +670,7 @@ abstract class DatabaseConnection extends PDO {
    * @return DatabaseStatementInterface
    *   This method will return one of: the executed statement, the number of
    *   rows affected by the query (not the number matched), or the generated
-   *   insert IT of the last query, depending on the value of
+   *   insert ID of the last query, depending on the value of
    *   $options['return']. Typically that value will be set by default or a
    *   query builder and should not be set by a user. If there is an error,
    *   this method will return NULL and may throw an exception if
@@ -919,11 +933,14 @@ abstract class DatabaseConnection extends PDO {
    * For some database drivers, it may also wrap the table name in
    * database-specific escape characters.
    *
-   * @return
+   * @return string
    *   The sanitized table name string.
    */
   public function escapeTable($table) {
-    return preg_replace('/[^A-Za-z0-9_.]+/', '', $table);
+    if (!isset($this->escapedNames[$table])) {
+      $this->escapedNames[$table] = preg_replace('/[^A-Za-z0-9_.]+/', '', $table);
+    }
+    return $this->escapedNames[$table];
   }
 
   /**
@@ -933,11 +950,14 @@ abstract class DatabaseConnection extends PDO {
    * For some database drivers, it may also wrap the field name in
    * database-specific escape characters.
    *
-   * @return
+   * @return string
    *   The sanitized field name string.
    */
   public function escapeField($field) {
-    return preg_replace('/[^A-Za-z0-9_.]+/', '', $field);
+    if (!isset($this->escapedNames[$field])) {
+      $this->escapedNames[$field] = preg_replace('/[^A-Za-z0-9_.]+/', '', $field);
+    }
+    return $this->escapedNames[$field];
   }
 
   /**
@@ -948,11 +968,14 @@ abstract class DatabaseConnection extends PDO {
    * DatabaseConnection::escapeTable(), this doesn't allow the period (".")
    * because that is not allowed in aliases.
    *
-   * @return
+   * @return string
    *   The sanitized field name string.
    */
   public function escapeAlias($field) {
-    return preg_replace('/[^A-Za-z0-9_]+/', '', $field);
+    if (!isset($this->escapedAliases[$field])) {
+      $this->escapedAliases[$field] = preg_replace('/[^A-Za-z0-9_]+/', '', $field);
+    }
+    return $this->escapedAliases[$field];
   }
 
   /**
@@ -1313,6 +1336,39 @@ abstract class DatabaseConnection extends PDO {
    *   also larger than the $existing_id if one was passed in.
    */
   abstract public function nextId($existing_id = 0);
+
+  /**
+   * Checks whether utf8mb4 support is configurable in settings.php.
+   *
+   * @return bool
+   */
+  public function utf8mb4IsConfigurable() {
+    // Since 4 byte UTF-8 is not supported by default, there is nothing to
+    // configure.
+    return FALSE;
+  }
+
+  /**
+   * Checks whether utf8mb4 support is currently active.
+   *
+   * @return bool
+   */
+  public function utf8mb4IsActive() {
+    // Since 4 byte UTF-8 is not supported by default, there is nothing to
+    // activate.
+    return FALSE;
+  }
+
+  /**
+   * Checks whether utf8mb4 support is available on the current database system.
+   *
+   * @return bool
+   */
+  public function utf8mb4IsSupported() {
+    // By default we assume that the database backend may not support 4 byte
+    // UTF-8.
+    return FALSE;
+  }
 }
 
 /**

includes/database/mysql/database.inc

@@ -28,6 +28,12 @@ class DatabaseConnection_mysql extends DatabaseConnection {
 
     $this->connectionOptions = $connection_options;
 
+    $charset = 'utf8';
+    // Check if the charset is overridden to utf8mb4 in settings.php.
+    if ($this->utf8mb4IsActive()) {
+      $charset = 'utf8mb4';
+    }
+
     // The DSN should use either a socket or a host/port.
     if (isset($connection_options['unix_socket'])) {
       $dsn = 'mysql:unix_socket=' . $connection_options['unix_socket'];
@@ -36,6 +42,10 @@ class DatabaseConnection_mysql extends DatabaseConnection {
       // Default to TCP connection on port 3306.
       $dsn = 'mysql:host=' . $connection_options['host'] . ';port=' . (empty($connection_options['port']) ? 3306 : $connection_options['port']);
     }
+    // Character set is added to dsn to ensure PDO uses the proper character
+    // set when escaping. This has security implications. See
+    // https://www.drupal.org/node/1201452 for further discussion.
+    $dsn .= ';charset=' . $charset;
     $dsn .= ';dbname=' . $connection_options['database'];
     // Allow PDO options to be overridden.
     $connection_options += array(
@@ -47,6 +57,11 @@ class DatabaseConnection_mysql extends DatabaseConnection {
       // Because MySQL's prepared statements skip the query cache, because it's dumb.
       PDO::ATTR_EMULATE_PREPARES => TRUE,
     );
+    if (defined('PDO::MYSQL_ATTR_MULTI_STATEMENTS')) {
+      // An added connection option in PHP 5.5.21+ to optionally limit SQL to a
+      // single statement like mysqli.
+      $connection_options['pdo'] += array(PDO::MYSQL_ATTR_MULTI_STATEMENTS => FALSE);
+    }
 
     parent::__construct($dsn, $connection_options['username'], $connection_options['password'], $connection_options['pdo']);
 
@@ -54,10 +69,10 @@ class DatabaseConnection_mysql extends DatabaseConnection {
     // certain one has been set; otherwise, MySQL defaults to 'utf8_general_ci'
     // for UTF-8.
     if (!empty($connection_options['collation'])) {
-      $this->exec('SET NAMES utf8 COLLATE ' . $connection_options['collation']);
+      $this->exec('SET NAMES ' . $charset . ' COLLATE ' . $connection_options['collation']);
     }
     else {
-      $this->exec('SET NAMES utf8');
+      $this->exec('SET NAMES ' . $charset);
     }
 
     // Set MySQL init_commands if not already defined.  Default Drupal's MySQL
@@ -72,10 +87,12 @@ class DatabaseConnection_mysql extends DatabaseConnection {
       'init_commands' => array(),
     );
     $connection_options['init_commands'] += array(
-      'sql_mode' => "SET sql_mode = 'ANSI,STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER'",
+      'sql_mode' => "SET sql_mode = 'REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER'",
     );
-    // Set connection options.
-    $this->exec(implode('; ', $connection_options['init_commands']));
+    // Execute initial commands.
+    foreach ($connection_options['init_commands'] as $sql) {
+      $this->exec($sql);
+    }
   }
 
   public function __destruct() {
@@ -195,6 +212,42 @@ class DatabaseConnection_mysql extends DatabaseConnection {
       }
     }
   }
+
+  public function utf8mb4IsConfigurable() {
+    return TRUE;
+  }
+
+  public function utf8mb4IsActive() {
+    return isset($this->connectionOptions['charset']) && $this->connectionOptions['charset'] === 'utf8mb4';
+  }
+
+  public function utf8mb4IsSupported() {
+    // Ensure that the MySQL driver supports utf8mb4 encoding.
+    $version = $this->getAttribute(PDO::ATTR_CLIENT_VERSION);
+    if (strpos($version, 'mysqlnd') !== FALSE) {
+      // The mysqlnd driver supports utf8mb4 starting at version 5.0.9.
+      $version = preg_replace('/^\D+([\d.]+).*/', '$1', $version);
+      if (version_compare($version, '5.0.9', '<')) {
+        return FALSE;
+      }
+    }
+    else {
+      // The libmysqlclient driver supports utf8mb4 starting at version 5.5.3.
+      if (version_compare($version, '5.5.3', '<')) {
+        return FALSE;
+      }
+    }
+
+    // Ensure that the MySQL server supports large prefixes and utf8mb4.
+    try {
+      $this->query("CREATE TABLE {drupal_utf8mb4_test} (id VARCHAR(255), PRIMARY KEY(id(255))) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci ROW_FORMAT=DYNAMIC ENGINE=INNODB");
+    }
+    catch (Exception $e) {
+      return FALSE;
+    }
+    $this->query("DROP TABLE {drupal_utf8mb4_test}");
+    return TRUE;
+  }
 }
 
 

includes/database/mysql/schema.inc

@@ -39,8 +39,8 @@ class DatabaseSchema_mysql extends DatabaseSchema {
       $info['table'] = substr($table, ++$pos);
     }
     else {
-      $db_info = Database::getConnectionInfo();
-      $info['database'] = $db_info[$this->connection->getTarget()]['database'];
+      $db_info = $this->connection->getConnectionOptions();
+      $info['database'] = $db_info['database'];
       $info['table'] = $table;
     }
     return $info;
@@ -81,7 +81,8 @@ class DatabaseSchema_mysql extends DatabaseSchema {
     // Provide defaults if needed.
     $table += array(
       'mysql_engine' => 'InnoDB',
-      'mysql_character_set' => 'utf8',
+      // Allow the default charset to be overridden in settings.php.
+      'mysql_character_set' => $this->connection->utf8mb4IsActive() ? 'utf8mb4' : 'utf8',
     );
 
     $sql = "CREATE TABLE {" . $name . "} (\n";
@@ -109,6 +110,13 @@ class DatabaseSchema_mysql extends DatabaseSchema {
       $sql .= ' COLLATE ' . $info['collation'];
     }
 
+    // The row format needs to be either DYNAMIC or COMPRESSED in order to allow
+    // for the innodb_large_prefix setting to take effect, see
+    // https://dev.mysql.com/doc/refman/5.6/en/create-table.html
+    if ($this->connection->utf8mb4IsActive()) {
+      $sql .= ' ROW_FORMAT=DYNAMIC';
+    }
+
     // Add table comment.
     if (!empty($table['description'])) {
       $sql .= ' COMMENT ' . $this->prepareComment($table['description'], self::COMMENT_MAX_TABLE);

includes/database/pgsql/database.inc

@@ -216,6 +216,14 @@ class DatabaseConnection_pgsql extends DatabaseConnection {
 
     return $id;
   }
+
+  public function utf8mb4IsActive() {
+    return TRUE;
+  }
+
+  public function utf8mb4IsSupported() {
+    return TRUE;
+  }
 }
 
 /**

includes/database/query.inc

@@ -1694,7 +1694,7 @@ class DatabaseCondition implements QueryConditionInterface, Countable {
    * Implements Countable::count().
    *
    * Returns the size of this conditional. The size of the conditional is the
-   * size of its conditional array minus one, because one element is the the
+   * size of its conditional array minus one, because one element is the
    * conjunction.
    */
   public function count() {

includes/database/schema.inc

@@ -92,7 +92,8 @@ require_once dirname(__FILE__) . '/query.inc';
  *    specification). Each specification is an array containing the name of
  *    the referenced table ('table'), and an array of column mappings
  *    ('columns'). Column mappings are defined by key pairs ('source_column' =>
- *    'referenced_column').
+ *    'referenced_column'). This key is for documentation purposes only; foreign
+ *    keys are not created in the database, nor are they enforced by Drupal.
  *  - 'indexes':  An associative array of indexes ('indexname' =>
  *    specification). Each specification is an array of one or more
  *    key column specifiers (see below) that form an index on the
@@ -144,6 +145,8 @@ require_once dirname(__FILE__) . '/query.inc';
  *   'unique keys' => array(
  *     'vid' => array('vid'),
  *   ),
+ *   // For documentation purposes only; foreign keys are not created in the
+ *   // database.
  *   'foreign keys' => array(
  *     'node_revision' => array(
  *       'table' => 'node_revision',

includes/database/select.inc

@@ -1231,6 +1231,21 @@ class SelectQuery extends Query implements SelectQueryInterface {
 
     // Modules may alter all queries or only those having a particular tag.
     if (isset($this->alterTags)) {
+      // Many contrib modules assume that query tags used for access-checking
+      // purposes follow the pattern $entity_type . '_access'. But this is
+      // not the case for taxonomy terms, since core used to add term_access
+      // instead of taxonomy_term_access to its queries. Provide backwards
+      // compatibility by adding both tags here instead of attempting to fix
+      // all contrib modules in a coordinated effort.
+      // TODO:
+      // - Extract this mechanism into a hook as part of a public (non-security)
+      //   issue.
+      // - Emit E_USER_DEPRECATED if term_access is used.
+      //   https://www.drupal.org/node/2575081
+      $term_access_tags = array('term_access' => 1, 'taxonomy_term_access' => 1);
+      if (array_intersect_key($this->alterTags, $term_access_tags)) {
+        $this->alterTags += $term_access_tags;
+      }
       $hooks = array('query');
       foreach ($this->alterTags as $tag => $value) {
         $hooks[] = 'query_' . $tag;

includes/database/sqlite/database.inc

@@ -378,6 +378,14 @@ class DatabaseConnection_sqlite extends DatabaseConnection {
     }
   }
 
+  public function utf8mb4IsActive() {
+    return TRUE;
+  }
+
+  public function utf8mb4IsSupported() {
+    return TRUE;
+  }
+
 }
 
 /**

includes/database/sqlite/install.inc

@@ -14,8 +14,6 @@ class DatabaseTasks_sqlite extends DatabaseTasks {
 
   /**
    * Minimum engine version.
-   *
-   * @todo: consider upping to 3.6.8 in Drupal 8 to get SAVEPOINT support.
    */
   public function minimumVersion() {
     return '3.3.7';

includes/entity.inc

@@ -28,7 +28,9 @@ interface DrupalEntityControllerInterface {
    * @param $ids
    *   An array of entity IDs, or FALSE to load all entities.
    * @param $conditions
-   *   An array of conditions in the form 'field' => $value.
+   *   An array of conditions. Keys are field names on the entity's base table.
+   *   Values will be compared for equality. All the comparisons will be ANDed
+   *   together. This parameter is deprecated; use an EntityFieldQuery instead.
    *
    * @return
    *   An array of entity objects indexed by their ids. When no results are
@@ -181,6 +183,11 @@ class DrupalDefaultEntityController implements DrupalEntityControllerInterface {
       }
     }
 
+    // Ensure integer entity IDs are valid.
+    if (!empty($ids)) {
+      $this->cleanIds($ids);
+    }
+
     // Load any remaining entities from the database. This is the case if $ids
     // is set to FALSE (so we load all entities), if there are any ids left to
     // load, if loading a revision, or if $conditions was passed without $ids.
@@ -221,6 +228,35 @@ class DrupalDefaultEntityController implements DrupalEntityControllerInterface {
     return $entities;
   }
 
+  /**
+   * Ensures integer entity IDs are valid.
+   *
+   * The identifier sanitization provided by this method has been introduced
+   * as Drupal used to rely on the database to facilitate this, which worked
+   * correctly with MySQL but led to errors with other DBMS such as PostgreSQL.
+   *
+   * @param array $ids
+   *   The entity IDs to verify. Non-integer IDs are removed from this array if
+   *   the entity type requires IDs to be integers.
+   */
+  protected function cleanIds(&$ids) {
+    $entity_info = entity_get_info($this->entityType);
+    if (isset($entity_info['base table field types'])) {
+      $id_type = $entity_info['base table field types'][$this->idKey];
+      if ($id_type == 'serial' || $id_type == 'int') {
+        $ids = array_filter($ids, array($this, 'filterId'));
+        $ids = array_map('intval', $ids);
+      }
+    }
+  }
+
+  /**
+   * Callback for array_filter that removes non-integer IDs.
+   */
+  protected function filterId($id) {
+    return is_numeric($id) && $id == (int) $id;
+  }
+
   /**
    * Builds the query to load the entity.
    *
@@ -236,7 +272,9 @@ class DrupalDefaultEntityController implements DrupalEntityControllerInterface {
    * @param $ids
    *   An array of entity IDs, or FALSE to load all entities.
    * @param $conditions
-   *   An array of conditions in the form 'field' => $value.
+   *   An array of conditions. Keys are field names on the entity's base table.
+   *   Values will be compared for equality. All the comparisons will be ANDed
+   *   together. This parameter is deprecated; use an EntityFieldQuery instead.
    * @param $revision_id
    *   The ID of the revision to load, or FALSE if this query is asking for the
    *   most current revision(s).
@@ -408,7 +446,7 @@ class EntityFieldQueryException extends Exception {}
  *
  * This class allows finding entities based on entity properties (for example,
  * node->changed), field values, and generic entity meta data (bundle,
- * entity type, entity id, and revision ID). It is not possible to query across
+ * entity type, entity ID, and revision ID). It is not possible to query across
  * multiple entity types. For example, there is no facility to find published
  * nodes written by users created in the last hour, as this would require
  * querying both node->status and user->created.
@@ -650,14 +688,36 @@ class EntityFieldQuery {
    * @param $field
    *   Either a field name or a field array.
    * @param $column
-   *   The column that should hold the value to be matched.
+   *   The column that should hold the value to be matched, defined in the
+   *   hook_field_schema() of this field. If this is omitted then all of the
+   *   other parameters are ignored, except $field, and this call will just be
+   *   adding a condition that says that the field has a value, rather than
+   *   testing the value itself.
    * @param $value
-   *   The value to test the column value against.
+   *   The value to test the column value against. In most cases, this is a
+   *   scalar. For more complex options, it is an array. The meaning of each
+   *   element in the array is dependent on $operator.
    * @param $operator
-   *   The operator to be used to test the given value.
+   *   The operator to be used to test the given value. The possible values are:
+   *   - '=', '<>', '>', '>=', '<', '<=', 'STARTS_WITH', 'CONTAINS': These
+   *     operators expect $value to be a literal of the same type as the
+   *     column.
+   *   - 'IN', 'NOT IN': These operators expect $value to be an array of
+   *     literals of the same type as the column.
+   *   - 'BETWEEN': This operator expects $value to be an array of two literals
+   *     of the same type as the column.
+   *   The operator can be omitted, and will default to 'IN' if the value is an
+   *   array, or to '=' otherwise.
    * @param $delta_group
    *   An arbitrary identifier: conditions in the same group must have the same
-   *   $delta_group.
+   *   $delta_group. For example, let's presume a multivalue field which has
+   *   two columns, 'color' and 'shape', and for entity ID 1, there are two
+   *   values: red/square and blue/circle. Entity ID 1 does not have values
+   *   corresponding to 'red circle'; however if you pass 'red' and 'circle' as
+   *   conditions, it will appear in the results -- by default queries will run
+   *   against any combination of deltas. By passing the conditions with the
+   *   same $delta_group it will ensure that only values attached to the same
+   *   delta are matched, and entity 1 would then be excluded from the results.
    * @param $language_group
    *   An arbitrary identifier: conditions in the same group must have the same
    *   $language_group.
@@ -732,9 +792,11 @@ class EntityFieldQuery {
    * @param $field
    *   Either a field name or a field array.
    * @param $column
-   *   A column defined in the hook_field_schema() of this field. If this is
-   *   omitted then the query will find only entities that have data in this
-   *   field, using the entity and property conditions if there are any.
+   *   The column that should hold the value to be matched, defined in the
+   *   hook_field_schema() of this field. If this is omitted then all of the
+   *   other parameters are ignored, except $field, and this call will just be
+   *   adding a condition that says that the field has a value, rather than
+   *   testing the value itself.
    * @param $value
    *   The value to test the column value against. In most cases, this is a
    *   scalar. For more complex options, it is an array. The meaning of each
@@ -753,10 +815,10 @@ class EntityFieldQuery {
    * @param $delta_group
    *   An arbitrary identifier: conditions in the same group must have the same
    *   $delta_group. For example, let's presume a multivalue field which has
-   *   two columns, 'color' and 'shape', and for entity id 1, there are two
+   *   two columns, 'color' and 'shape', and for entity ID 1, there are two
    *   values: red/square and blue/circle. Entity ID 1 does not have values
    *   corresponding to 'red circle', however if you pass 'red' and 'circle' as
-   *   conditions, it will appear in the  results - by default queries will run
+   *   conditions, it will appear in the results -- by default queries will run
    *   against any combination of deltas. By passing the conditions with the
    *   same $delta_group it will ensure that only values attached to the same
    *   delta are matched, and entity 1 would then be excluded from the results.

includes/errors.inc

@@ -199,7 +199,16 @@ function _drupal_log_error($error, $fatal = FALSE) {
     $number++;
   }
 
-  watchdog('php', '%type: !message in %function (line %line of %file).', $error, $error['severity_level']);
+  // Log the error immediately, unless this is a non-fatal error which has been
+  // triggered via drupal_trigger_error_with_delayed_logging(); in that case
+  // trigger it in a shutdown function. Fatal errors are always triggered
+  // immediately since for a fatal error the page request will end here anyway.
+  if (!$fatal && drupal_static('_drupal_trigger_error_with_delayed_logging')) {
+    drupal_register_shutdown_function('watchdog', 'php', '%type: !message in %function (line %line of %file).', $error, $error['severity_level']);
+  }
+  else {
+    watchdog('php', '%type: !message in %function (line %line of %file).', $error, $error['severity_level']);
+  }
 
   if ($fatal) {
     drupal_add_http_header('Status', '500 Service unavailable (with message)');

includes/file.inc

@@ -273,7 +273,9 @@ function file_default_scheme() {
  *   The normalized URI.
  */
 function file_stream_wrapper_uri_normalize($uri) {
-  $scheme = file_uri_scheme($uri);
+  // Inline file_uri_scheme() function call for performance reasons.
+  $position = strpos($uri, '://');
+  $scheme = $position ? substr($uri, 0, $position) : FALSE;
 
   if ($scheme && file_stream_wrapper_valid_scheme($scheme)) {
     $target = file_uri_target($uri);
@@ -1559,7 +1561,7 @@ function file_save_upload($form_field_name, $validators = array(), $destination
     return FALSE;
   }
 
-  // Add in our check of the the file name length.
+  // Add in our check of the file name length.
   $validators['file_validate_name_length'] = array();
 
   // Call the validation functions specified by this function's caller.
@@ -1785,7 +1787,7 @@ function file_validate_is_image(stdClass $file) {
 /**
  * Verifies that image dimensions are within the specified maximum and minimum.
  *
- * Non-image files will be ignored. If a image toolkit is available the image
+ * Non-image files will be ignored. If an image toolkit is available the image
  * will be scaled to fit within the desired maximum dimensions.
  *
  * @param $file
@@ -2022,7 +2024,7 @@ function file_download() {
  *
  * @see file_transfer()
  * @see file_download_access()
- * @see hook_file_downlaod()
+ * @see hook_file_download()
  */
 function file_download_headers($uri) {
   // Let other modules provide headers and control access to the file.

includes/form.inc

@@ -105,7 +105,8 @@
  *   generate the same form (or very similar forms) using different $form_ids
  *   can implement hook_forms(), which maps different $form_id values to the
  *   proper form constructor function. Examples may be found in node_forms(),
- *   and search_forms().
+ *   and search_forms(). hook_forms() can also be used to define forms in
+ *   classes.
  * @param ...
  *   Any additional arguments are passed on to the functions called by
  *   drupal_get_form(), including the unique form constructor function. For
@@ -809,7 +810,7 @@ function drupal_retrieve_form($form_id, &$form_state) {
     }
     if (isset($form_definition['callback'])) {
       $callback = $form_definition['callback'];
-      $form_state['build_info']['base_form_id'] = $callback;
+      $form_state['build_info']['base_form_id'] = isset($form_definition['base_form_id']) ? $form_definition['base_form_id'] : $callback;
     }
     // In case $form_state['wrapper_callback'] is not defined already, we also
     // allow hook_forms() to define one.
@@ -830,7 +831,7 @@ function drupal_retrieve_form($form_id, &$form_state) {
   // the actual form builder function ($callback) expects. This allows for
   // pre-populating a form with common elements for certain forms, such as
   // back/next/save buttons in multi-step form wizards. See drupal_build_form().
-  if (isset($form_state['wrapper_callback']) && function_exists($form_state['wrapper_callback'])) {
+  if (isset($form_state['wrapper_callback']) && is_callable($form_state['wrapper_callback'])) {
     $form = call_user_func_array($form_state['wrapper_callback'], $args);
     // Put the prepopulated $form into $args.
     $args[0] = $form;
@@ -938,7 +939,7 @@ function drupal_process_form($form_id, &$form, &$form_state) {
         // after the batch is processed.
       }
 
-      // Set a flag to indicate the the form has been processed and executed.
+      // Set a flag to indicate that the form has been processed and executed.
       $form_state['executed'] = TRUE;
 
       // Redirect the form based on values in $form_state.
@@ -1128,6 +1129,17 @@ function drupal_prepare_form($form_id, &$form, &$form_state) {
   drupal_alter($hooks, $form, $form_state, $form_id);
 }
 
+/**
+ * Helper function to call form_set_error() if there is a token error.
+ */
+function _drupal_invalid_token_set_form_error() {
+  $path = current_path();
+  $query = drupal_get_query_parameters();
+  $url = url($path, array('query' => $query));
+
+  // Setting this error will cause the form to fail validation.
+  form_set_error('form_token', t('The form has become outdated. Copy any unsaved work in the form below and then <a href="@link">reload this page</a>.', array('@link' => $url)));
+}
 
 /**
  * Validates user-submitted form data in the $form_state array.
@@ -1162,16 +1174,11 @@ function drupal_validate_form($form_id, &$form, &$form_state) {
   }
 
   // If the session token was set by drupal_prepare_form(), ensure that it
-  // matches the current user's session.
+  // matches the current user's session. This is duplicate to code in
+  // form_builder() but left to protect any custom form handling code.
   if (isset($form['#token'])) {
-    if (!drupal_valid_token($form_state['values']['form_token'], $form['#token'])) {
-      $path = current_path();
-      $query = drupal_get_query_parameters();
-      $url = url($path, array('query' => $query));
-
-      // Setting this error will cause the form to fail validation.
-      form_set_error('form_token', t('The form has become outdated. Copy any unsaved work in the form below and then <a href="@link">reload this page</a>.', array('@link' => $url)));
-
+    if (!drupal_valid_token($form_state['values']['form_token'], $form['#token']) || !empty($form_state['invalid_token'])) {
+      _drupal_invalid_token_set_form_error();
       // Stop here and don't run any further validation handlers, because they
       // could invoke non-safe operations which opens the door for CSRF
       // vulnerabilities.
@@ -1827,6 +1834,20 @@ function form_builder($form_id, &$element, &$form_state) {
     // from the POST data is set and matches the current form_id.
     if ($form_state['programmed'] || (!empty($form_state['input']) && (isset($form_state['input']['form_id']) && ($form_state['input']['form_id'] == $form_id)))) {
       $form_state['process_input'] = TRUE;
+      // If the session token was set by drupal_prepare_form(), ensure that it
+      // matches the current user's session.
+      $form_state['invalid_token'] = FALSE;
+      if (isset($element['#token'])) {
+        if (empty($form_state['input']['form_token']) || !drupal_valid_token($form_state['input']['form_token'], $element['#token'])) {
+          // Set an early form error to block certain input processing since that
+          // opens the door for CSRF vulnerabilities.
+          _drupal_invalid_token_set_form_error();
+          // This value is checked in _form_builder_handle_input_element().
+          $form_state['invalid_token'] = TRUE;
+          // Make sure file uploads do not get processed.
+          $_FILES = array();
+        }
+      }
     }
     else {
       $form_state['process_input'] = FALSE;
@@ -1930,6 +1951,18 @@ function form_builder($form_id, &$element, &$form_state) {
       $element['#attributes']['enctype'] = 'multipart/form-data';
     }
 
+    // Allow Ajax submissions to the form action to bypass verification. This is
+    // especially useful for multipart forms, which cannot be verified via a
+    // response header.
+    $element['#attached']['js'][] = array(
+      'type' => 'setting',
+      'data' => array(
+        'urlIsAjaxTrusted' => array(
+          $element['#action'] => TRUE,
+        ),
+      ),
+    );
+
     // If a form contains a single textfield, and the ENTER key is pressed
     // within it, Internet Explorer submits the form with no POST data
     // identifying any submit button. Other browsers submit POST data as though
@@ -1978,6 +2011,19 @@ function form_builder($form_id, &$element, &$form_state) {
  * Adds the #name and #value properties of an input element before rendering.
  */
 function _form_builder_handle_input_element($form_id, &$element, &$form_state) {
+  static $safe_core_value_callbacks = array(
+    'form_type_token_value',
+    'form_type_textarea_value',
+    'form_type_textfield_value',
+    'form_type_checkbox_value',
+    'form_type_checkboxes_value',
+    'form_type_radios_value',
+    'form_type_password_confirm_value',
+    'form_type_select_value',
+    'form_type_tableselect_value',
+    'list_boolean_allowed_values_callback',
+  );
+
   if (!isset($element['#name'])) {
     $name = array_shift($element['#parents']);
     $element['#name'] = $name;
@@ -2056,7 +2102,14 @@ function _form_builder_handle_input_element($form_id, &$element, &$form_state) {
       // property, optionally filtered through $value_callback.
       if ($input_exists) {
         if (function_exists($value_callback)) {
-          $element['#value'] = $value_callback($element, $input, $form_state);
+          // Skip all value callbacks except safe ones like text if the CSRF
+          // token was invalid.
+          if (empty($form_state['invalid_token']) || in_array($value_callback, $safe_core_value_callbacks)) {
+            $element['#value'] = $value_callback($element, $input, $form_state);
+          }
+          else {
+            $input = NULL;
+          }
         }
         if (!isset($element['#value']) && isset($input)) {
           $element['#value'] = $input;
@@ -2451,6 +2504,17 @@ function form_type_password_confirm_value($element, $input = FALSE) {
     $element += array('#default_value' => array());
     return $element['#default_value'] + array('pass1' => '', 'pass2' => '');
   }
+  $value = array('pass1' => '', 'pass2' => '');
+  // Throw out all invalid array keys; we only allow pass1 and pass2.
+  foreach ($value as $allowed_key => $default) {
+    // These should be strings, but allow other scalars since they might be
+    // valid input in programmatic form submissions. Any nested array values
+    // are ignored.
+    if (isset($input[$allowed_key]) && is_scalar($input[$allowed_key])) {
+      $value[$allowed_key] = (string) $input[$allowed_key];
+    }
+  }
+  return $value;
 }
 
 /**
@@ -2494,6 +2558,27 @@ function form_type_select_value($element, $input = FALSE) {
   }
 }
 
+/**
+ * Determines the value for a textarea form element.
+ *
+ * @param array $element
+ *   The form element whose value is being populated.
+ * @param mixed $input
+ *   The incoming input to populate the form element. If this is FALSE,
+ *   the element's default value should be returned.
+ *
+ * @return string
+ *   The data that will appear in the $element_state['values'] collection
+ *   for this element. Return nothing to use the default.
+ */
+function form_type_textarea_value($element, $input = FALSE) {
+  if ($input !== FALSE && $input !== NULL) {
+    // This should be a string, but allow other scalars since they might be
+    // valid input in programmatic form submissions.
+    return is_scalar($input) ? (string) $input : '';
+  }
+}
+
 /**
  * Determines the value for a textfield form element.
  *
@@ -2509,9 +2594,12 @@ function form_type_select_value($element, $input = FALSE) {
  */
 function form_type_textfield_value($element, $input = FALSE) {
   if ($input !== FALSE && $input !== NULL) {
-    // Equate $input to the form value to ensure it's marked for
-    // validation.
-    return str_replace(array("\r", "\n"), '', $input);
+    // This should be a string, but allow other scalars since they might be
+    // valid input in programmatic form submissions.
+    if (!is_scalar($input)) {
+      $input = '';
+    }
+    return str_replace(array("\r", "\n"), '', (string) $input);
   }
 }
 
@@ -2627,8 +2715,8 @@ function _form_options_flatten($array) {
  *   - #required: (optional) Whether the user needs to select an option (TRUE)
  *     or not (FALSE). Defaults to FALSE.
  *   - #empty_option: (optional) The label to show for the first default option.
- *     By default, the label is automatically set to "- Please select -" for a
- *     required field and "- None -" for an optional field.
+ *     By default, the label is automatically set to "- Select -" for a required
+ *     field and "- None -" for an optional field.
  *   - #empty_value: (optional) The value for the first default option, which is
  *     used to determine whether the user submitted a value or not.
  *     - If #required is TRUE, this defaults to '' (an empty string).
@@ -2941,7 +3029,7 @@ function form_process_password_confirm($element) {
 function password_confirm_validate($element, &$element_state) {
   $pass1 = trim($element['pass1']['#value']);
   $pass2 = trim($element['pass2']['#value']);
-  if (!empty($pass1) || !empty($pass2)) {
+  if (strlen($pass1) > 0 || strlen($pass2) > 0) {
     if (strcmp($pass1, $pass2)) {
       form_error($element, t('The specified passwords do not match.'));
     }
@@ -3298,9 +3386,12 @@ function form_process_container($element, &$form_state) {
 /**
  * Returns HTML to wrap child elements in a container.
  *
- * Used for grouped form items. Can also be used as a #theme_wrapper for any
+ * Used for grouped form items. Can also be used as a theme wrapper for any
  * renderable element, to surround it with a <div> and add attributes such as
- * classes or an HTML id.
+ * classes or an HTML ID.
+ *
+ * See the @link forms_api_reference.html Form API reference @endlink for more
+ * information on the #theme_wrappers render array property.
  *
  * @param $variables
  *   An associative array containing:
@@ -3455,6 +3546,7 @@ function form_process_tableselect($element) {
             '#return_value' => $key,
             '#default_value' => isset($value[$key]) ? $key : NULL,
             '#attributes' => $element['#attributes'],
+            '#ajax' => isset($element['#ajax']) ? $element['#ajax'] : NULL,
           );
         }
         else {
@@ -3875,6 +3967,34 @@ function theme_hidden($variables) {
   return '<input' . drupal_attributes($element['#attributes']) . " />\n";
 }
 
+/**
+ * Process function to prepare autocomplete data.
+ *
+ * @param $element
+ *   A textfield or other element with a #autocomplete_path.
+ *
+ * @return array
+ *   The processed form element.
+ */
+function form_process_autocomplete($element) {
+  $element['#autocomplete_input'] = array();
+  if ($element['#autocomplete_path'] && drupal_valid_path($element['#autocomplete_path'])) {
+    $element['#autocomplete_input']['#id'] = $element['#id'] .'-autocomplete';
+    // Force autocomplete to use non-clean URLs since this protects against the
+    // browser interpreting the path plus search string as an actual file.
+    $current_clean_url = isset($GLOBALS['conf']['clean_url']) ? $GLOBALS['conf']['clean_url'] : NULL;
+    $GLOBALS['conf']['clean_url'] = 0;
+    // Force the script path to 'index.php', in case the server is not
+    // configured to find it automatically. Normally it is the responsibility
+    // of the site to do this themselves using hook_url_outbound_alter() (see
+    // url()) but since this code is forcing non-clean URLs on sites that don't
+    // normally use them, it is done here instead.
+    $element['#autocomplete_input']['#url_value'] = url($element['#autocomplete_path'], array('absolute' => TRUE, 'script' => 'index.php'));
+    $GLOBALS['conf']['clean_url'] = $current_clean_url;
+  }
+  return $element;
+}
+
 /**
  * Returns HTML for a textfield form element.
  *
@@ -3893,14 +4013,14 @@ function theme_textfield($variables) {
   _form_set_class($element, array('form-text'));
 
   $extra = '';
-  if ($element['#autocomplete_path'] && drupal_valid_path($element['#autocomplete_path'])) {
+  if ($element['#autocomplete_path'] && !empty($element['#autocomplete_input'])) {
     drupal_add_library('system', 'drupal.autocomplete');
     $element['#attributes']['class'][] = 'form-autocomplete';
 
     $attributes = array();
     $attributes['type'] = 'hidden';
-    $attributes['id'] = $element['#attributes']['id'] . '-autocomplete';
-    $attributes['value'] = url($element['#autocomplete_path'], array('absolute' => TRUE));
+    $attributes['id'] = $element['#autocomplete_input']['#id'];
+    $attributes['value'] = $element['#autocomplete_input']['#url_value'];
     $attributes['disabled'] = 'disabled';
     $attributes['class'][] = 'autocomplete';
     $extra = '<input' . drupal_attributes($attributes) . ' />';
@@ -4374,7 +4494,7 @@ function element_validate_number($element, &$form_state) {
  *
  * Sample callback_batch_finished():
  * @code
- * function batch_test_finished($success, $results, $operations) {
+ * function my_finished_callback($success, $results, $operations) {
  *   // The 'success' parameter means no fatal PHP errors were detected. All
  *   // other error management should be handled using 'results'.
  *   if ($success) {

includes/install.core.inc

@@ -362,7 +362,8 @@ function install_run_tasks(&$install_state) {
  * Runs an individual installation task.
  *
  * @param $task
- *   An array of information about the task to be run.
+ *   An array of information about the task to be run as returned by
+ *   hook_install_tasks().
  * @param $install_state
  *   An array of information about the current installation state. This is
  *   passed in by reference so that it can be modified by the task.
@@ -478,11 +479,15 @@ function install_run_task($task, &$install_state) {
  * the page request evolves (for example, if an installation profile hasn't
  * been selected yet, we don't yet know which profile tasks need to be run).
  *
+ * You can override this using hook_install_tasks() or
+ * hook_install_tasks_alter().
+ *
  * @param $install_state
  *   An array of information about the current installation state.
  *
  * @return
- *   A list of tasks to be performed, with associated metadata.
+ *   A list of tasks to be performed, with associated metadata as returned by
+ *   hook_install_tasks().
  */
 function install_tasks_to_perform($install_state) {
   // Start with a list of all currently available tasks.
@@ -804,6 +809,13 @@ function install_system_module(&$install_state) {
 
   variable_set('install_profile_modules', array_diff($modules, array('system')));
   $install_state['database_tables_exist'] = TRUE;
+
+  // Prevent the hook_requirements() check from telling us to convert the
+  // database to utf8mb4.
+  $connection = Database::getConnection();
+  if ($connection->utf8mb4IsConfigurable() && $connection->utf8mb4IsActive()) {
+    variable_set('drupal_all_databases_are_utf8mb4', TRUE);
+  }
 }
 
 /**
@@ -1585,7 +1597,9 @@ function install_finished(&$install_state) {
 }
 
 /**
- * Batch callback for batch installation of modules.
+ * Implements callback_batch_operation().
+ *
+ * Performs batch installation of modules.
  */
 function _install_module_batch($module, $module_name, &$context) {
   // Install and enable the module right away, so that the module will be
@@ -1598,6 +1612,8 @@ function _install_module_batch($module, $module_name, &$context) {
 }
 
 /**
+ * Implements callback_batch_finished().
+ *
  * 'Finished' callback for module installation batch.
  */
 function _install_profile_modules_finished($success, $results, $operations) {

includes/install.inc

@@ -653,6 +653,13 @@ function drupal_rewrite_settings($settings = array(), $prefix = '') {
     if ($fp && fwrite($fp, $buffer) === FALSE) {
       throw new Exception(st('Failed to modify %settings. Verify the file permissions.', array('%settings' => $settings_file)));
     }
+    else {
+      // The existing settings.php file might have been included already. In
+      // case an opcode cache is enabled, the rewritten contents of the file
+      // will not be reflected in this process. Ensure to invalidate the file
+      // in case an opcode cache is enabled.
+      drupal_clear_opcode_cache(DRUPAL_ROOT . '/' . $settings_file);
+    }
   }
   else {
     throw new Exception(st('Failed to open %settings. Verify the file permissions.', array('%settings' => $default_settings)));
@@ -743,7 +750,7 @@ function drupal_install_system() {
 /**
  * Uninstalls a given list of disabled modules.
  *
- * @param array $module_list
+ * @param string[] $module_list
  *   The modules to uninstall. It is the caller's responsibility to ensure that
  *   all modules in this list have already been disabled before this function
  *   is called.
@@ -762,6 +769,7 @@ function drupal_install_system() {
  *   included in $module_list).
  *
  * @see module_disable()
+ * @see module_enable()
  */
 function drupal_uninstall_modules($module_list = array(), $uninstall_dependents = TRUE) {
   if ($uninstall_dependents) {

includes/language.inc

@@ -297,7 +297,7 @@ function language_negotiation_get_switch_links($type, $path) {
       // Add support for WCAG 2.0's Language of Parts to add language identifiers.
       // http://www.w3.org/TR/UNDERSTANDING-WCAG20/meaning-other-lang-id.html
       foreach ($result as $langcode => $link) {
-        $result[$langcode]['attributes']['lang'] = $langcode;
+        $result[$langcode]['attributes']['xml:lang'] = $langcode;
       }
 
       if (!empty($result)) {

includes/locale.inc

@@ -435,6 +435,13 @@ function locale_language_url_rewrite_url(&$path, &$options) {
     switch (variable_get('locale_language_negotiation_url_part', LOCALE_LANGUAGE_NEGOTIATION_URL_PREFIX)) {
       case LOCALE_LANGUAGE_NEGOTIATION_URL_DOMAIN:
         if ($options['language']->domain) {
+          // Save the original base URL. If it contains a port, we need to
+          // retain it below.
+          if (!empty($options['base_url'])) {
+            // The colon in the URL scheme messes up the port checking below.
+            $normalized_base_url = str_replace(array('https://', 'http://'), '', $options['base_url']);
+          }
+
           // Ask for an absolute URL with our modified base_url.
           global $is_https;
           $url_scheme = ($is_https) ? 'https://' : 'http://';
@@ -449,6 +456,19 @@ function locale_language_url_rewrite_url(&$path, &$options) {
 
           // Apply the appropriate protocol to the URL.
           $options['base_url'] = $url_scheme . $host;
+
+          // In case either the original base URL or the HTTP host contains a
+          // port, retain it.
+          $http_host = $_SERVER['HTTP_HOST'];
+          if (isset($normalized_base_url) && strpos($normalized_base_url, ':') !== FALSE) {
+            list($host, $port) = explode(':', $normalized_base_url);
+            $options['base_url'] .= ':' . $port;
+          }
+          elseif (strpos($http_host, ':') !== FALSE) {
+            list($host, $port) = explode(':', $http_host);
+            $options['base_url'] .= ':' . $port;
+          }
+
           if (isset($options['https']) && variable_get('https', FALSE)) {
             if ($options['https'] === TRUE) {
               $options['base_url'] = str_replace('http://', 'https://', $options['base_url']);
@@ -523,6 +543,22 @@ function locale_language_url_rewrite_session(&$path, &$options) {
  * possible attack vector (img).
  */
 function locale_string_is_safe($string) {
+  // Some strings have tokens in them. For tokens in the first part of href or
+  // src HTML attributes, filter_xss() removes part of the token, the part
+  // before the first colon.  filter_xss() assumes it could be an attempt to
+  // inject javascript. When filter_xss() removes part of tokens, it causes the
+  // string to not be translatable when it should be translatable. See
+  // LocaleStringIsSafeTest::testLocaleStringIsSafe().
+  //
+  // We can recognize tokens since they are wrapped with brackets and are only
+  // composed of alphanumeric characters, colon, underscore, and dashes. We can
+  // be sure these strings are safe to strip out before the string is checked in
+  // filter_xss() because no dangerous javascript will match that pattern.
+  //
+  // @todo Do not strip out the token. Fix filter_xss() to not incorrectly
+  //   alter the string. https://www.drupal.org/node/2372127
+  $string = preg_replace('/\[[a-z0-9_-]+(:[a-z0-9_-]+)+\]/i', '', $string);
+
   return decode_entities($string) == decode_entities(filter_xss($string, array('a', 'abbr', 'acronym', 'address', 'b', 'bdo', 'big', 'blockquote', 'br', 'caption', 'cite', 'code', 'col', 'colgroup', 'dd', 'del', 'dfn', 'dl', 'dt', 'em', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'hr', 'i', 'ins', 'kbd', 'li', 'ol', 'p', 'pre', 'q', 'samp', 'small', 'span', 'strong', 'sub', 'sup', 'table', 'tbody', 'td', 'tfoot', 'th', 'thead', 'tr', 'tt', 'ul', 'var')));
 }
 
@@ -631,9 +667,6 @@ function locale_add_language($langcode, $name = NULL, $native = NULL, $direction
  *   translations).
  */
 function _locale_import_po($file, $langcode, $mode, $group = NULL) {
-  // Try to allocate enough time to parse and import the data.
-  drupal_set_time_limit(240);
-
   // Check if we have the language already in the database.
   if (!db_query("SELECT COUNT(language) FROM {languages} WHERE language = :language", array(':language' => $langcode))->fetchField()) {
     drupal_set_message(t('The language selected for import is not supported.'), 'error');
@@ -717,6 +750,12 @@ function _locale_import_read_po($op, $file, $mode = NULL, $lang = NULL, $group =
   $lineno = 0;
 
   while (!feof($fd)) {
+    // Refresh the time limit every 10 parsed rows to ensure there is always
+    // enough time to import the data for large PO files.
+    if (!($lineno % 10)) {
+      drupal_set_time_limit(30);
+    }
+
     // A line should not be longer than 10 * 1024.
     $line = fgets($fd, 10 * 1024);
 
@@ -1931,7 +1970,7 @@ function _locale_translate_seek() {
       $groups[$string['group']],
       array('data' => check_plain(truncate_utf8($string['source'], 150, FALSE, TRUE)) . '<br /><small>' . $string['location'] . '</small>'),
       $string['context'],
-      array('data' => _locale_translate_language_list($string['languages'], $limit_language), 'align' => 'center'),
+      array('data' => _locale_translate_language_list($string, $limit_language), 'align' => 'center'),
       array('data' => l(t('edit'), "admin/config/regional/translate/edit/$lid", array('query' => drupal_get_destination())), 'class' => array('nowrap')),
       array('data' => l(t('delete'), "admin/config/regional/translate/delete/$lid", array('query' => drupal_get_destination())), 'class' => array('nowrap')),
     );
@@ -2126,16 +2165,21 @@ function _locale_rebuild_js($langcode = NULL) {
 /**
  * List languages in search result table
  */
-function _locale_translate_language_list($translation, $limit_language) {
+function _locale_translate_language_list($string, $limit_language) {
   // Add CSS.
   drupal_add_css(drupal_get_path('module', 'locale') . '/locale.css');
 
+  // Include both translated and not yet translated target languages in the
+  // list. The source language is English for built-in strings and the default
+  // language for other strings.
   $languages = language_list();
-  unset($languages['en']);
+  $default = language_default();
+  $omit = $string['group'] == 'default' ? 'en' : $default->language;
+  unset($languages[$omit]);
   $output = '';
   foreach ($languages as $langcode => $language) {
     if (!$limit_language || $limit_language == $langcode) {
-      $output .= (!empty($translation[$langcode])) ? $langcode . ' ' : "<em class=\"locale-untranslated\">$langcode</em> ";
+      $output .= (!empty($string['languages'][$langcode])) ? $langcode . ' ' : "<em class=\"locale-untranslated\">$langcode</em> ";
     }
   }
 
@@ -2301,6 +2345,8 @@ function _locale_batch_build($files, $finished = NULL, $components = array()) {
 }
 
 /**
+ * Implements callback_batch_operation().
+ *
  * Perform interface translation import as a batch step.
  *
  * @param $filepath
@@ -2319,6 +2365,8 @@ function _locale_batch_import($filepath, &$context) {
 }
 
 /**
+ * Implements callback_batch_finished().
+ *
  * Finished callback of system page locale import batch.
  * Inform the user of translation files imported.
  */
@@ -2329,6 +2377,8 @@ function _locale_batch_system_finished($success, $results) {
 }
 
 /**
+ * Implements callback_batch_finished().
+ *
  * Finished callback of language addition locale import batch.
  * Inform the user of translation files imported.
  */

includes/mail.inc

@@ -566,7 +566,7 @@ function _drupal_wrap_mail_line(&$line, $key, $values) {
   // Use soft-breaks only for purely quoted or unindented text.
   $line = wordwrap($line, 77 - $values['length'], $values['soft'] ? " \n" : "\n");
   // Break really long words at the maximum width allowed.
-  $line = wordwrap($line, 996 - $values['length'], $values['soft'] ? " \n" : "\n");
+  $line = wordwrap($line, 996 - $values['length'], $values['soft'] ? " \n" : "\n", TRUE);
 }
 
 /**

includes/menu.inc

@@ -229,12 +229,20 @@ define('MENU_CONTEXT_INLINE', 0x0002);
 define('MENU_FOUND', 1);
 
 /**
- * Internal menu status code -- Menu item was not found.
+ * Menu status code -- Not found.
+ *
+ * This can be used as the return value from a page callback, although it is
+ * preferable to use a load function to accomplish this; see the hook_menu()
+ * documentation for details.
  */
 define('MENU_NOT_FOUND', 2);
 
 /**
- * Internal menu status code -- Menu item access is denied.
+ * Menu status code -- Access denied.
+ *
+ * This can be used as the return value from a page callback, although it is
+ * preferable to use an access callback to accomplish this; see the hook_menu()
+ * documentation for details.
  */
 define('MENU_ACCESS_DENIED', 3);
 
@@ -431,7 +439,7 @@ function menu_set_item($path, $router_item) {
  *
  * @param $path
  *   The path; for example, 'node/5'. The function will find the corresponding
- *   node/% item and return that.
+ *   node/% item and return that. Defaults to the current path.
  * @param $router_item
  *   Internal use only.
  *
@@ -456,7 +464,9 @@ function menu_get_item($path = NULL, $router_item = NULL) {
     // Rebuild if we know it's needed, or if the menu masks are missing which
     // occurs rarely, likely due to a race condition of multiple rebuilds.
     if (variable_get('menu_rebuild_needed', FALSE) || !variable_get('menu_masks', array())) {
-      menu_rebuild();
+      if (_menu_check_rebuild()) {
+        menu_rebuild();
+      }
     }
     $original_map = arg(NULL, $path);
 
@@ -1485,7 +1495,7 @@ function menu_tree_collect_node_links(&$tree, &$node_links) {
  *   menu_tree_collect_node_links().
  */
 function menu_tree_check_access(&$tree, $node_links = array()) {
-  if ($node_links) {
+  if ($node_links && (user_access('access content') || user_access('bypass node access'))) {
     $nids = array_keys($node_links);
     $select = db_select('node', 'n');
     $select->addField('n', 'nid');
@@ -2409,7 +2419,7 @@ function menu_set_active_trail($new_trail = NULL) {
           // argument placeholders (%). Such links are not contained in regular
           // menu trees, and have only been loaded for the additional
           // translation that happens here, so as to be able to display them in
-          // the breadcumb for the current page.
+          // the breadcrumb for the current page.
           // @see _menu_tree_check_access()
           // @see _menu_link_translate()
           if (strpos($link['href'], '%') !== FALSE) {
@@ -2611,10 +2621,30 @@ function menu_get_active_breadcrumb() {
  */
 function menu_get_active_title() {
   $active_trail = menu_get_active_trail();
+  $local_task_title = NULL;
 
   foreach (array_reverse($active_trail) as $item) {
-    if (!(bool) ($item['type'] & MENU_IS_LOCAL_TASK)) {
-      return $item['title'];
+    // Local task titles are displayed as tabs and therefore should not be
+    // repeated as the page title. However, if the local task appears in a
+    // top-level menu, it is no longer a "local task" anymore (the front page
+    // of the site does not have tabs) so it is better to use the local task
+    // title in that case than to fall back on the front page link in the
+    // active trail (which is usually "Home" and would not make sense in this
+    // context).
+    if ((bool) ($item['type'] & MENU_IS_LOCAL_TASK)) {
+      // A local task title is being skipped; track it in case it needs to be
+      // used later.
+      $local_task_title = $item['title'];
+    }
+    else {
+      // This is not a local task, so use it for the page title (unless the
+      // conditions described above are met).
+      if (isset($local_task_title) && isset($item['href']) && $item['href'] == '<front>') {
+        return $local_task_title;
+      }
+      else {
+        return $item['title'];
+      }
     }
   }
 }
@@ -2693,6 +2723,21 @@ function menu_reset_static_cache() {
   drupal_static_reset('menu_link_get_preferred');
 }
 
+/**
+ * Checks whether a menu_rebuild() is necessary.
+ */
+function _menu_check_rebuild() {
+  // To absolutely ensure that the menu rebuild is required, re-load the
+  // variables in case they were set by another process.
+  $variables = variable_initialize();
+  if (empty($variables['menu_rebuild_needed']) && !empty($variables['menu_masks'])) {
+    unset($GLOBALS['conf']['menu_rebuild_needed']);
+    $GLOBALS['conf']['menu_masks'] = $variables['menu_masks'];
+    return FALSE;
+  }
+  return TRUE;
+}
+
 /**
  * Populates the database tables used by various menu functions.
  *
@@ -2713,6 +2758,14 @@ function menu_rebuild() {
     // We choose to block here since otherwise the router item may not
     // be available in menu_execute_active_handler() resulting in a 404.
     lock_wait('menu_rebuild');
+
+    if (_menu_check_rebuild()) {
+      // If we get here and menu_masks was not set, then it is possible a menu
+      // is being reloaded, or that the process rebuilding the menu was unable
+      // to complete successfully. A missing menu_masks variable could result
+      // in a 404, so re-run the function.
+      return menu_rebuild();
+    }
     return FALSE;
   }
 
@@ -2737,6 +2790,12 @@ function menu_rebuild() {
     $transaction->rollback();
     watchdog_exception('menu', $e);
   }
+  // Explicitly commit the transaction now; this ensures that the database
+  // operations during the menu rebuild are committed before the lock is made
+  // available again, since locks may not always reside in the same database
+  // connection. The lock is acquired outside of the transaction so should also
+  // be released outside of it.
+  unset($transaction);
 
   lock_release('menu_rebuild');
   return TRUE;

includes/module.inc

@@ -227,6 +227,10 @@ function system_list_reset() {
   drupal_static_reset('list_themes');
   cache_clear_all('bootstrap_modules', 'cache_bootstrap');
   cache_clear_all('system_list', 'cache_bootstrap');
+
+  // Clean up the bootstrap file scan cache.
+  drupal_static_reset('_drupal_file_scan_cache');
+  cache_clear_all('_drupal_file_scan_cache', 'cache_bootstrap');
 }
 
 /**
@@ -265,11 +269,11 @@ function _module_build_dependencies($files) {
 /**
  * Determines whether a given module exists.
  *
- * @param $module
+ * @param string $module
  *   The name of the module (without the .module extension).
  *
- * @return
- *   TRUE if the module is both installed and enabled.
+ * @return bool
+ *   TRUE if the module is both installed and enabled, FALSE otherwise.
  */
 function module_exists($module) {
   $list = module_list();
@@ -320,16 +324,27 @@ function module_load_install($module) {
  *   The name of the included file, if successful; FALSE otherwise.
  */
 function module_load_include($type, $module, $name = NULL) {
+  static $files = array();
+
   if (!isset($name)) {
     $name = $module;
   }
 
+  $key = $type . ':' . $module . ':' . $name;
+  if (isset($files[$key])) {
+    return $files[$key];
+  }
+
   if (function_exists('drupal_get_path')) {
     $file = DRUPAL_ROOT . '/' . drupal_get_path('module', $module) . "/$name.$type";
     if (is_file($file)) {
       require_once $file;
+      $files[$key] = $file;
       return $file;
     }
+    else {
+      $files[$key] = FALSE;
+    }
   }
   return FALSE;
 }
@@ -365,20 +380,22 @@ function module_load_all_includes($type, $name = NULL) {
  * - Invoke hook_modules_installed().
  * - Invoke hook_modules_enabled().
  *
- * @param $module_list
+ * @param string[] $module_list
  *   An array of module names.
- * @param $enable_dependencies
+ * @param bool $enable_dependencies
  *   If TRUE, dependencies will automatically be added and enabled in the
  *   correct order. This incurs a significant performance cost, so use FALSE
  *   if you know $module_list is already complete and in the correct order.
  *
- * @return
+ * @return bool
  *   FALSE if one or more dependencies are missing, TRUE otherwise.
  *
  * @see hook_install()
  * @see hook_enable()
  * @see hook_modules_installed()
  * @see hook_modules_enabled()
+ * @see module_disable()
+ * @see drupal_uninstall_modules()
  */
 function module_enable($module_list, $enable_dependencies = TRUE) {
   if ($enable_dependencies) {
@@ -505,12 +522,15 @@ function module_enable($module_list, $enable_dependencies = TRUE) {
 /**
  * Disables a given set of modules.
  *
- * @param $module_list
+ * @param string[] $module_list
  *   An array of module names.
- * @param $disable_dependents
+ * @param bool $disable_dependents
  *   If TRUE, dependent modules will automatically be added and disabled in the
  *   correct order. This incurs a significant performance cost, so use FALSE
  *   if you know $module_list is already complete and in the correct order.
+ *
+ * @see drupal_uninstall_modules()
+ * @see module_enable()
  */
 function module_disable($module_list, $disable_dependents = TRUE) {
   if ($disable_dependents) {
@@ -676,12 +696,16 @@ function module_hook($module, $hook) {
 /**
  * Determines which modules are implementing a hook.
  *
- * @param $hook
+ * Lazy-loaded include files specified with "group" via hook_hook_info() or
+ * hook_module_implements_alter() will be automatically included by this
+ * function when necessary.
+ *
+ * @param string $hook
  *   The name of the hook (e.g. "help" or "menu").
- * @param $sort
+ * @param bool $sort
  *   By default, modules are ordered by weight and filename, settings this option
  *   to TRUE, module list will be ordered by module name.
- * @param $reset
+ * @param bool $reset
  *   For internal use only: Whether to force the stored list of hook
  *   implementations to be regenerated (such as after enabling a new module,
  *   before processing hook_enable).
@@ -696,8 +720,10 @@ function module_implements($hook, $sort = FALSE, $reset = FALSE) {
   static $drupal_static_fast;
   if (!isset($drupal_static_fast)) {
     $drupal_static_fast['implementations'] = &drupal_static(__FUNCTION__);
+    $drupal_static_fast['verified'] = &drupal_static(__FUNCTION__ . ':verified');
   }
   $implementations = &$drupal_static_fast['implementations'];
+  $verified = &$drupal_static_fast['verified'];
 
   // We maintain a persistent cache of hook implementations in addition to the
   // static cache to avoid looping through every module and every hook on each
@@ -711,14 +737,19 @@ function module_implements($hook, $sort = FALSE, $reset = FALSE) {
   // per request.
   if ($reset) {
     $implementations = array();
+    $verified = array();
     cache_set('module_implements', array(), 'cache_bootstrap');
     drupal_static_reset('module_hook_info');
     drupal_static_reset('drupal_alter');
     cache_clear_all('hook_info', 'cache_bootstrap');
+    cache_clear_all('system_cache_tables', 'cache');
     return;
   }
 
   // Fetch implementations from cache.
+  // This happens on the first call to module_implements(*, *, FALSE) during a
+  // request, but also when $implementations have been reset, e.g. after
+  // module_enable().
   if (empty($implementations)) {
     $implementations = cache_get('module_implements', 'cache_bootstrap');
     if ($implementations === FALSE) {
@@ -727,12 +758,17 @@ function module_implements($hook, $sort = FALSE, $reset = FALSE) {
     else {
       $implementations = $implementations->data;
     }
+    // Forget all previously "verified" hooks, in case that $implementations
+    // were cleared via drupal_static_reset('module_implements') instead of
+    // module_implements(*, *, TRUE).
+    $verified = array();
   }
 
   if (!isset($implementations[$hook])) {
     // The hook is not cached, so ensure that whether or not it has
     // implementations, that the cache is updated at the end of the request.
     $implementations['#write_cache'] = TRUE;
+    // Discover implementations for this hook.
     $hook_info = module_hook_info();
     $implementations[$hook] = array();
     $list = module_list(FALSE, FALSE, $sort);
@@ -744,13 +780,31 @@ function module_implements($hook, $sort = FALSE, $reset = FALSE) {
         $implementations[$hook][$module] = $include_file ? $hook_info[$hook]['group'] : FALSE;
       }
     }
-    // Allow modules to change the weight of specific implementations but avoid
+    // Allow modules to change the weight of specific implementations, but avoid
     // an infinite loop.
     if ($hook != 'module_implements_alter') {
+      // Remember the implementations before hook_module_implements_alter().
+      $implementations_before = $implementations[$hook];
       drupal_alter('module_implements', $implementations[$hook], $hook);
+      // Verify implementations that were added or modified.
+      foreach (array_diff_assoc($implementations[$hook], $implementations_before) as $module => $group) {
+        // If drupal_alter('module_implements') changed or added a $group, the
+        // respective file needs to be included.
+        if ($group) {
+          module_load_include('inc', $module, "$module.$group");
+        }
+        // If a new implementation was added, verify that the function exists.
+        if (!function_exists($module . '_' . $hook)) {
+          unset($implementations[$hook][$module]);
+        }
+      }
     }
+    // Implementations for this hook are now "verified".
+    $verified[$hook] = TRUE;
   }
-  else {
+  elseif (!isset($verified[$hook])) {
+    // Implementations for this hook were in the cache, but they are not
+    // "verified" yet.
     foreach ($implementations[$hook] as $module => $group) {
       // If this hook implementation is stored in a lazy-loaded file, so include
       // that file first.
@@ -769,6 +823,7 @@ function module_implements($hook, $sort = FALSE, $reset = FALSE) {
         $implementations['#write_cache'] = TRUE;
       }
     }
+    $verified[$hook] = TRUE;
   }
 
   return array_keys($implementations[$hook]);
@@ -833,6 +888,11 @@ function module_hook_info() {
  * @see module_implements()
  */
 function module_implements_write_cache() {
+  // The list of implementations includes vital modules only before full
+  // bootstrap, so do not write cache if we are not fully bootstrapped yet.
+  if (drupal_get_bootstrap_phase() != DRUPAL_BOOTSTRAP_FULL) {
+    return;
+  }
   $implementations = &drupal_static('module_implements');
   if (isset($implementations['#write_cache'])) {
     unset($implementations['#write_cache']);
@@ -880,7 +940,9 @@ function module_invoke($module, $hook) {
  *
  * @return
  *   An array of return values of the hook implementations. If modules return
- *   arrays from their implementations, those are merged into one array.
+ *   arrays from their implementations, those are merged into one array
+ *   recursively. Note: integer keys in arrays will be lost, as the merge is
+ *   done using array_merge_recursive().
  *
  * @see drupal_alter()
  */

includes/path.inc

@@ -347,7 +347,8 @@ function drupal_match_path($path, $patterns) {
  * drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL) makes this function available.
  *
  * @return
- *   The current Drupal URL path.
+ *   The current Drupal URL path. The path is untrusted user input and must be
+ *   treated as such.
  *
  * @see request_path()
  */

includes/registry.inc

@@ -164,7 +164,7 @@ function _registry_parse_files($files) {
  *   (optional) Weight of the module.
  */
 function _registry_parse_file($filename, $contents, $module = '', $weight = 0) {
-  if (preg_match_all('/^\s*(?:abstract|final)?\s*(class|interface)\s+([a-zA-Z0-9_]+)/m', $contents, $matches)) {
+  if (preg_match_all('/^\s*(?:abstract|final)?\s*(class|interface|trait)\s+([a-zA-Z0-9_]+)/m', $contents, $matches)) {
     foreach ($matches[2] as $key => $name) {
       db_merge('registry')
         ->key(array(

includes/session.inc

@@ -163,7 +163,7 @@ function _drupal_session_write($sid, $value) {
   try {
     if (!drupal_save_session()) {
       // We don't have anything to do if we are not allowed to save the session.
-      return;
+      return TRUE;
     }
 
     // Check whether $_SESSION has been changed in this request.
@@ -425,7 +425,7 @@ function _drupal_session_destroy($sid) {
 
   // Nothing to do if we are not allowed to change the session.
   if (!drupal_save_session()) {
-    return;
+    return TRUE;
   }
 
   // Delete session data.
@@ -446,6 +446,8 @@ function _drupal_session_destroy($sid) {
   elseif (variable_get('https', FALSE)) {
     _drupal_session_delete_cookie('S' . session_name(), TRUE);
   }
+
+  return TRUE;
 }
 
 /**

includes/theme.inc

@@ -1248,6 +1248,7 @@ function path_to_theme() {
 function drupal_find_theme_functions($cache, $prefixes) {
   $implementations = array();
   $functions = get_defined_functions();
+  $theme_functions = preg_grep('/^(' . implode(')|(', $prefixes) . ')_/', $functions['user']);
 
   foreach ($cache as $hook => $info) {
     foreach ($prefixes as $prefix) {
@@ -1264,7 +1265,7 @@ function drupal_find_theme_functions($cache, $prefixes) {
       // intermediary suggestion.
       $pattern = isset($info['pattern']) ? $info['pattern'] : ($hook . '__');
       if (!isset($info['base hook']) && !empty($pattern)) {
-        $matches = preg_grep('/^' . $prefix . '_' . $pattern . '/', $functions['user']);
+        $matches = preg_grep('/^' . $prefix . '_' . $pattern . '/', $theme_functions);
         if ($matches) {
           foreach ($matches as $match) {
             $new_hook = substr($match, strlen($prefix) + 1);
@@ -1691,7 +1692,7 @@ function theme_status_messages($variables) {
       $output .= " </ul>\n";
     }
     else {
-      $output .= $messages[0];
+      $output .= reset($messages);
     }
     $output .= "</div>\n";
   }
@@ -1710,11 +1711,29 @@ function theme_status_messages($variables) {
  * copy if none of the enabled modules or the active theme implement any
  * preprocess or process functions or override this theme implementation.
  *
- * @param $variables
- *   An associative array containing the keys 'text', 'path', and 'options'.
- *   See the l() function for information about these variables.
+ * @param array $variables
+ *   An associative array containing the keys:
+ *   - text: The text of the link.
+ *   - path: The internal path or external URL being linked to. It is used as
+ *     the $path parameter of the url() function.
+ *   - options: (optional) An array that defaults to empty, but can contain:
+ *     - attributes: Can contain optional attributes:
+ *       - class: must be declared in an array. Example: 'class' =>
+ *         array('class_name1','class_name2').
+ *       - title: must be a string. Example: 'title' => 'Example title'
+ *       - Others are more flexible as long as they work with
+ *         drupal_attributes($variables['options']['attributes]).
+ *     - html: Boolean flag that tells whether text contains HTML or plain
+ *       text. If set to TRUE, the text value will not be sanitized so the
+         calling function must ensure that it already contains safe HTML.
+ *   The elements $variables['options']['attributes'] and
+ *   $variables['options']['html'] are used in this function similarly to the
+ *   way that $options['attributes'] and $options['html'] are used in l().
+ *   The link itself is built by the url() function, which takes
+ *   $variables['path'] and $variables['options'] as arguments.
  *
  * @see l()
+ * @see url()
  */
 function theme_link($variables) {
   return '<a href="' . check_plain(url($variables['path'], $variables['options'])) . '"' . drupal_attributes($variables['options']['attributes']) . '>' . ($variables['options']['html'] ? $variables['text'] : check_plain($variables['text'])) . '</a>';
@@ -1791,7 +1810,8 @@ function theme_links($variables) {
     foreach ($links as $key => $link) {
       $class = array($key);
 
-      // Add first, last and active classes to the list of links to help out themers.
+      // Add first, last and active classes to the list of links to help out
+      // themers.
       if ($i == 1) {
         $class[] = 'first';
       }
@@ -1809,7 +1829,8 @@ function theme_links($variables) {
         $output .= l($link['title'], $link['href'], $link);
       }
       elseif (!empty($link['title'])) {
-        // Some links are actually not links, but we wrap these in <span> for adding title and class attributes.
+        // Some links are actually not links, but we wrap these in <span> for
+        // adding title and class attributes.
         if (empty($link['html'])) {
           $link['title'] = check_plain($link['title']);
         }
@@ -2618,10 +2639,13 @@ function template_preprocess_page(&$variables) {
   // Move some variables to the top level for themer convenience and template cleanliness.
   $variables['show_messages'] = $variables['page']['#show_messages'];
 
-  foreach (system_region_list($GLOBALS['theme']) as $region_key => $region_name) {
+  foreach (system_region_list($GLOBALS['theme'], REGIONS_ALL, FALSE) as $region_key) {
     if (!isset($variables['page'][$region_key])) {
       $variables['page'][$region_key] = array();
     }
+    if ($region_content = drupal_get_region_content($region_key)) {
+      $variables['page'][$region_key][]['#markup'] = $region_content;
+    }
   }
 
   // Set up layout variable.

includes/update.inc

@@ -795,6 +795,14 @@ function update_fix_d7_requirements() {
 function update_fix_d7_install_profile() {
   $profile = drupal_get_profile();
 
+  // 'Default' profile has been renamed to 'Standard' in D7.
+  // We change the profile here to prevent a broken record in the system table.
+  // See system_update_7049().
+  if ($profile == 'default') {
+    $profile = 'standard';
+    variable_set('install_profile', $profile);
+  }
+
   $results = db_select('system', 's')
     ->fields('s', array('name', 'schema_version'))
     ->condition('name', $profile)
@@ -908,6 +916,8 @@ function update_get_d6_session_name() {
 }
 
 /**
+ * Implements callback_batch_operation().
+ *
  * Performs one update and stores the results for display on the results page.
  *
  * If an update function completes successfully, it should return a message
@@ -1078,6 +1088,8 @@ function update_batch($start, $redirect = NULL, $url = NULL, $batch = array(), $
 }
 
 /**
+ * Implements callback_batch_finished().
+ *
  * Finishes the update process and stores the results for eventual display.
  *
  * After the updates run, all caches are flushed. The update results are

includes/xmlrpcs.inc

@@ -264,6 +264,10 @@ function xmlrpc_server_call($xmlrpc_server, $methodname, $args) {
  */
 function xmlrpc_server_multicall($methodcalls) {
   // See http://www.xmlrpc.com/discuss/msgReader$1208
+  // To avoid multicall expansion attacks, limit the number of duplicate method
+  // calls allowed with a default of 1. Set to -1 for unlimited.
+  $duplicate_method_limit = variable_get('xmlrpc_multicall_duplicate_method_limit', 1);
+  $method_count = array();
   $return = array();
   $xmlrpc_server = xmlrpc_server_get();
   foreach ($methodcalls as $call) {
@@ -273,10 +277,14 @@ function xmlrpc_server_multicall($methodcalls) {
       $ok = FALSE;
     }
     $method = $call['methodName'];
+    $method_count[$method] = isset($method_count[$method]) ? $method_count[$method] + 1 : 1;
     $params = $call['params'];
     if ($method == 'system.multicall') {
       $result = xmlrpc_error(-32600, t('Recursive calls to system.multicall are forbidden.'));
     }
+    elseif ($duplicate_method_limit > 0 && $method_count[$method] > $duplicate_method_limit) {
+      $result = xmlrpc_error(-156579, t('Too many duplicate method calls in system.multicall.'));
+    }
     elseif ($ok) {
       $result = xmlrpc_server_call($xmlrpc_server, $method, $params);
     }

misc/ajax.js

@@ -14,6 +14,8 @@
 
 Drupal.ajax = Drupal.ajax || {};
 
+Drupal.settings.urlIsAjaxTrusted = Drupal.settings.urlIsAjaxTrusted || {};
+
 /**
  * Attaches the Ajax behavior to each Ajax form element.
  */
@@ -130,6 +132,11 @@ Drupal.ajax = function (base, element, element_settings) {
   // 5. /nojs# - Followed by a fragment.
   //      E.g.: path/nojs#myfragment
   this.url = element_settings.url.replace(/\/nojs(\/|$|\?|&|#)/g, '/ajax$1');
+  // If the 'nojs' version of the URL is trusted, also trust the 'ajax' version.
+  if (Drupal.settings.urlIsAjaxTrusted[element_settings.url]) {
+    Drupal.settings.urlIsAjaxTrusted[this.url] = true;
+  }
+
   this.wrapper = '#' + element_settings.wrapper;
 
   // If there isn't a form, jQuery.ajax() will be used instead, allowing us to
@@ -155,18 +162,36 @@ Drupal.ajax = function (base, element, element_settings) {
       ajax.ajaxing = true;
       return ajax.beforeSend(xmlhttprequest, options);
     },
-    success: function (response, status) {
+    success: function (response, status, xmlhttprequest) {
       // Sanity check for browser support (object expected).
       // When using iFrame uploads, responses must be returned as a string.
       if (typeof response == 'string') {
         response = $.parseJSON(response);
       }
+
+      // Prior to invoking the response's commands, verify that they can be
+      // trusted by checking for a response header. See
+      // ajax_set_verification_header() for details.
+      // - Empty responses are harmless so can bypass verification. This avoids
+      //   an alert message for server-generated no-op responses that skip Ajax
+      //   rendering.
+      // - Ajax objects with trusted URLs (e.g., ones defined server-side via
+      //   #ajax) can bypass header verification. This is especially useful for
+      //   Ajax with multipart forms. Because IFRAME transport is used, the
+      //   response headers cannot be accessed for verification.
+      if (response !== null && !Drupal.settings.urlIsAjaxTrusted[ajax.url]) {
+        if (xmlhttprequest.getResponseHeader('X-Drupal-Ajax-Token') !== '1') {
+          var customMessage = Drupal.t("The response failed verification so will not be processed.");
+          return ajax.error(xmlhttprequest, ajax.url, customMessage);
+        }
+      }
+
       return ajax.success(response, status);
     },
-    complete: function (response, status) {
+    complete: function (xmlhttprequest, status) {
       ajax.ajaxing = false;
       if (status == 'error' || status == 'parsererror') {
-        return ajax.error(response, ajax.url);
+        return ajax.error(xmlhttprequest, ajax.url);
       }
     },
     dataType: 'json',
@@ -175,6 +200,9 @@ Drupal.ajax = function (base, element, element_settings) {
 
   // Bind the ajaxSubmit function to the element event.
   $(ajax.element).bind(element_settings.event, function (event) {
+    if (!Drupal.settings.urlIsAjaxTrusted[ajax.url] && !Drupal.urlIsLocal(ajax.url)) {
+      throw new Error(Drupal.t('The callback URL is not local and not trusted: !url', {'!url': ajax.url}));
+    }
     return ajax.eventResponse(this, event);
   });
 
@@ -447,8 +475,8 @@ Drupal.ajax.prototype.getEffect = function (response) {
 /**
  * Handler for the form redirection error.
  */
-Drupal.ajax.prototype.error = function (response, uri) {
-  alert(Drupal.ajaxError(response, uri));
+Drupal.ajax.prototype.error = function (xmlhttprequest, uri, customMessage) {
+  Drupal.displayAjaxError(Drupal.ajaxError(xmlhttprequest, uri, customMessage));
   // Remove the progress element.
   if (this.progress.element) {
     $(this.progress.element).remove();
@@ -462,7 +490,7 @@ Drupal.ajax.prototype.error = function (response, uri) {
   $(this.element).removeClass('progress-disabled').removeAttr('disabled');
   // Reattach behaviors, if they were detached in beforeSerialize().
   if (this.form) {
-    var settings = response.settings || this.settings || Drupal.settings;
+    var settings = this.settings || Drupal.settings;
     Drupal.attachBehaviors(this.form, settings);
   }
 };

misc/autocomplete.js

@@ -114,6 +114,7 @@ Drupal.jsAC.prototype.onkeyup = function (input, e) {
  */
 Drupal.jsAC.prototype.select = function (node) {
   this.input.value = $(node).data('autocompleteValue');
+  $(this.input).trigger('autocompleteSelect', [node]);
 };
 
 /**
@@ -167,7 +168,7 @@ Drupal.jsAC.prototype.unhighlight = function (node) {
 Drupal.jsAC.prototype.hidePopup = function (keycode) {
   // Select item if the right key or mousebutton was pressed.
   if (this.selected && ((keycode && keycode != 46 && keycode != 8 && keycode != 27) || !keycode)) {
-    this.input.value = $(this.selected).data('autocompleteValue');
+    this.select(this.selected);
   }
   // Hide popup.
   var popup = this.popup;
@@ -220,7 +221,7 @@ Drupal.jsAC.prototype.found = function (matches) {
   for (key in matches) {
     $('<li></li>')
       .html($('<div></div>').html(matches[key]))
-      .mousedown(function () { ac.select(this); })
+      .mousedown(function () { ac.hidePopup(this); })
       .mouseover(function () { ac.highlight(this); })
       .mouseout(function () { ac.unhighlight(this); })
       .data('autocompleteValue', key)
@@ -270,8 +271,11 @@ Drupal.ACDB.prototype.search = function (searchString) {
   var db = this;
   this.searchString = searchString;
 
-  // See if this string needs to be searched for anyway.
-  searchString = searchString.replace(/^\s+|\s+$/, '');
+  // See if this string needs to be searched for anyway. The pattern ../ is
+  // stripped since it may be misinterpreted by the browser.
+  searchString = searchString.replace(/^\s+|\.{2,}\/|\s+$/g, '');
+  // Skip empty search strings, or search strings ending with a comma, since
+  // that is the separator between search terms.
   if (searchString.length <= 0 ||
     searchString.charAt(searchString.length - 1) == ',') {
     return;
@@ -306,7 +310,7 @@ Drupal.ACDB.prototype.search = function (searchString) {
         }
       },
       error: function (xmlhttp) {
-        alert(Drupal.ajaxError(xmlhttp, db.uri));
+        Drupal.displayAjaxError(Drupal.ajaxError(xmlhttp, db.uri));
       }
     });
   }, this.delay);

misc/drupal.js

@@ -269,6 +269,72 @@ Drupal.formatPlural = function (count, singular, plural, args, options) {
   }
 };
 
+/**
+ * Returns the passed in URL as an absolute URL.
+ *
+ * @param url
+ *   The URL string to be normalized to an absolute URL.
+ *
+ * @return
+ *   The normalized, absolute URL.
+ *
+ * @see https://github.com/angular/angular.js/blob/v1.4.4/src/ng/urlUtils.js
+ * @see https://grack.com/blog/2009/11/17/absolutizing-url-in-javascript
+ * @see https://github.com/jquery/jquery-ui/blob/1.11.4/ui/tabs.js#L53
+ */
+Drupal.absoluteUrl = function (url) {
+  var urlParsingNode = document.createElement('a');
+
+  // Decode the URL first; this is required by IE <= 6. Decoding non-UTF-8
+  // strings may throw an exception.
+  try {
+    url = decodeURIComponent(url);
+  } catch (e) {}
+
+  urlParsingNode.setAttribute('href', url);
+
+  // IE <= 7 normalizes the URL when assigned to the anchor node similar to
+  // the other browsers.
+  return urlParsingNode.cloneNode(false).href;
+};
+
+/**
+ * Returns true if the URL is within Drupal's base path.
+ *
+ * @param url
+ *   The URL string to be tested.
+ *
+ * @return
+ *   Boolean true if local.
+ *
+ * @see https://github.com/jquery/jquery-ui/blob/1.11.4/ui/tabs.js#L58
+ */
+Drupal.urlIsLocal = function (url) {
+  // Always use browser-derived absolute URLs in the comparison, to avoid
+  // attempts to break out of the base path using directory traversal.
+  var absoluteUrl = Drupal.absoluteUrl(url);
+  var protocol = location.protocol;
+
+  // Consider URLs that match this site's base URL but use HTTPS instead of HTTP
+  // as local as well.
+  if (protocol === 'http:' && absoluteUrl.indexOf('https:') === 0) {
+    protocol = 'https:';
+  }
+  var baseUrl = protocol + '//' + location.host + Drupal.settings.basePath.slice(0, -1);
+
+  // Decoding non-UTF-8 strings may throw an exception.
+  try {
+    absoluteUrl = decodeURIComponent(absoluteUrl);
+  } catch (e) {}
+  try {
+    baseUrl = decodeURIComponent(baseUrl);
+  } catch (e) {}
+
+  // The given URL matches the site's base URL, or has a path under the site's
+  // base URL.
+  return absoluteUrl === baseUrl || absoluteUrl.indexOf(baseUrl + '/') === 0;
+};
+
 /**
  * Generate the themed representation of a Drupal object.
  *
@@ -347,10 +413,33 @@ Drupal.getSelection = function (element) {
   return { 'start': element.selectionStart, 'end': element.selectionEnd };
 };
 
+/**
+ * Add a global variable which determines if the window is being unloaded.
+ *
+ * This is primarily used by Drupal.displayAjaxError().
+ */
+Drupal.beforeUnloadCalled = false;
+$(window).bind('beforeunload pagehide', function () {
+    Drupal.beforeUnloadCalled = true;
+});
+
+/**
+ * Displays a JavaScript error from an Ajax response when appropriate to do so.
+ */
+Drupal.displayAjaxError = function (message) {
+  // Skip displaying the message if the user deliberately aborted (for example,
+  // by reloading the page or navigating to a different page) while the Ajax
+  // request was still ongoing. See, for example, the discussion at
+  // http://stackoverflow.com/questions/699941/handle-ajax-error-when-a-user-clicks-refresh.
+  if (!Drupal.beforeUnloadCalled) {
+    alert(message);
+  }
+};
+
 /**
  * Build an error message from an Ajax response.
  */
-Drupal.ajaxError = function (xmlhttp, uri) {
+Drupal.ajaxError = function (xmlhttp, uri, customMessage) {
   var statusCode, statusText, pathText, responseText, readyStateText, message;
   if (xmlhttp.status) {
     statusCode = "\n" + Drupal.t("An AJAX HTTP error occurred.") +  "\n" + Drupal.t("HTTP Result Code: !status", {'!status': xmlhttp.status});
@@ -383,7 +472,10 @@ Drupal.ajaxError = function (xmlhttp, uri) {
   // We don't need readyState except for status == 0.
   readyStateText = xmlhttp.status == 0 ? ("\n" + Drupal.t("ReadyState: !readyState", {'!readyState': xmlhttp.readyState})) : "";
 
-  message = statusCode + pathText + statusText + responseText + readyStateText;
+  // Additional message beyond what the xmlhttp object provides.
+  customMessage = customMessage ? ("\n" + Drupal.t("CustomMessage: !customMessage", {'!customMessage': customMessage})) : "";
+
+  message = statusCode + pathText + statusText + customMessage + responseText + readyStateText;
   return message;
 };
 

misc/states.js

@@ -493,7 +493,11 @@ $(document).bind('state:disabled', function(e) {
 $(document).bind('state:required', function(e) {
   if (e.trigger) {
     if (e.value) {
-      $(e.target).closest('.form-item, .form-wrapper').find('label').append('<span class="form-required">*</span>');
+      var $label = $(e.target).closest('.form-item, .form-wrapper').find('label');
+      // Avoids duplicate required markers on initialization.
+      if (!$label.find('.form-required').length) {
+        $label.append('<span class="form-required">*</span>');
+      }
     }
     else {
       $(e.target).closest('.form-item, .form-wrapper').find('label .form-required').remove();

misc/tabledrag.js

@@ -106,8 +106,10 @@ Drupal.tableDrag = function (table, tableSettings) {
 
   // Add mouse bindings to the document. The self variable is passed along
   // as event handlers do not have direct access to the tableDrag object.
-  $(document).bind('mousemove', function (event) { return self.dragRow(event, self); });
-  $(document).bind('mouseup', function (event) { return self.dropRow(event, self); });
+  $(document).bind('mousemove pointermove', function (event) { return self.dragRow(event, self); });
+  $(document).bind('mouseup pointerup', function (event) { return self.dropRow(event, self); });
+  $(document).bind('touchmove', function (event) { return self.dragRow(event.originalEvent.touches[0], self); });
+  $(document).bind('touchend', function (event) { return self.dropRow(event.originalEvent.touches[0], self); });
 };
 
 /**
@@ -274,7 +276,10 @@ Drupal.tableDrag.prototype.makeDraggable = function (item) {
   });
 
   // Add the mousedown action for the handle.
-  handle.mousedown(function (event) {
+  handle.bind('mousedown touchstart pointerdown', function (event) {
+    if (event.originalEvent.type == "touchstart") {
+      event = event.originalEvent.touches[0];
+    }
     // Create a new dragObject recording the event information.
     self.dragObject = {};
     self.dragObject.initMouseOffset = self.getMouseOffset(item, event);
@@ -500,7 +505,7 @@ Drupal.tableDrag.prototype.dragRow = function (event, self) {
     if (self.indentEnabled) {
       var xDiff = self.currentMouseCoords.x - self.dragObject.indentMousePos.x;
       // Set the number of indentations the mouse has been moved left or right.
-      var indentDiff = Math.round(xDiff / self.indentAmount * self.rtl);
+      var indentDiff = Math.round(xDiff / self.indentAmount);
       // Indent the row with our estimated diff, which may be further
       // restricted according to the rows around this row.
       var indentChange = self.rowObject.indent(indentDiff);
@@ -575,12 +580,20 @@ Drupal.tableDrag.prototype.dropRow = function (event, self) {
  * Get the mouse coordinates from the event (allowing for browser differences).
  */
 Drupal.tableDrag.prototype.mouseCoords = function (event) {
+  // Complete support for pointer events was only introduced to jQuery in
+  // version 1.11.1; between versions 1.7 and 1.11.0 pointer events have the
+  // clientX and clientY properties undefined. In those cases, the properties
+  // must be retrieved from the event.originalEvent object instead.
+  var clientX = event.clientX || event.originalEvent.clientX;
+  var clientY = event.clientY || event.originalEvent.clientY;
+
   if (event.pageX || event.pageY) {
     return { x: event.pageX, y: event.pageY };
   }
+
   return {
-    x: event.clientX + document.body.scrollLeft - document.body.clientLeft,
-    y: event.clientY + document.body.scrollTop  - document.body.clientTop
+    x: clientX + document.body.scrollLeft - document.body.clientLeft,
+    y: clientY + document.body.scrollTop  - document.body.clientTop
   };
 };
 

misc/tableselect.js

@@ -57,10 +57,14 @@ Drupal.tableSelect = function () {
     // Keep track of the last checked checkbox.
     lastChecked = e.target;
   });
+
+  // If all checkboxes are checked on page load, make sure the select-all one
+  // is checked too, otherwise keep unchecked.
+  updateSelectAll((checkboxes.length == $(checkboxes).filter(':checked').length));
 };
 
 Drupal.tableSelectRange = function (from, to, state) {
-  // We determine the looping mode based on the the order of from and to.
+  // We determine the looping mode based on the order of from and to.
   var mode = from.rowIndex > to.rowIndex ? 'previousSibling' : 'nextSibling';
 
   // Traverse through the sibling nodes.

misc/vertical-tabs.js

@@ -134,6 +134,8 @@ Drupal.verticalTab.prototype = {
   tabShow: function () {
     // Display the tab.
     this.item.show();
+    // Show the vertical tabs.
+    this.item.closest('.vertical-tabs').show();
     // Update .first marker for items. We need recurse from parent to retain the
     // actual DOM element order as jQuery implements sortOrder, but not as public
     // method.
@@ -164,6 +166,10 @@ Drupal.verticalTab.prototype = {
     if ($firstTab.length) {
       $firstTab.data('verticalTab').focus();
     }
+    // Hide the vertical tabs (if no tabs remain).
+    else {
+      this.item.closest('.vertical-tabs').hide();
+    }
     return this;
   }
 };

modules/aggregator/aggregator.info

@@ -7,8 +7,8 @@ files[] = aggregator.test
 configure = admin/config/services/aggregator/settings
 stylesheets[all][] = aggregator.css
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/aggregator/aggregator.processor.inc

@@ -72,7 +72,7 @@ function aggregator_aggregator_remove($feed) {
  */
 function aggregator_form_aggregator_admin_form_alter(&$form, $form_state) {
   if (in_array('aggregator', variable_get('aggregator_processors', array('aggregator')))) {
-    $info = module_invoke('aggregator', 'aggregator_process', 'info');
+    $info = module_invoke('aggregator', 'aggregator_process_info');
     $items = drupal_map_assoc(array(3, 5, 10, 15, 20, 25), '_aggregator_items');
     $period = drupal_map_assoc(array(3600, 10800, 21600, 32400, 43200, 86400, 172800, 259200, 604800, 1209600, 2419200, 4838400, 9676800), 'format_interval');
     $period[AGGREGATOR_CLEAR_NEVER] = t('Never');

modules/aggregator/tests/aggregator_test.info

@@ -5,8 +5,8 @@ version = VERSION
 core = 7.x
 hidden = TRUE
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/block/block.api.php

@@ -363,6 +363,31 @@ function hook_block_list_alter(&$blocks) {
   }
 }
 
+/**
+ * Act on block cache ID (cid) parts before the cid is generated.
+ *
+ * This hook allows you to add, remove or modify the custom keys used to
+ * generate a block cache ID (by default, these keys are set to the block
+ * module and delta). These keys will be combined with the standard ones
+ * provided by drupal_render_cid_parts() to generate the final block cache ID.
+ *
+ * To change the cache granularity used by drupal_render_cid_parts(), this hook
+ * cannot be used; instead, set the 'cache' key in the block's definition in
+ * hook_block_info().
+ *
+ * @params $cid_parts
+ *   An array of elements used to build the cid.
+ * @param $block
+ *   The block object being acted on.
+ *
+ * @see _block_get_cache_id()
+ */
+function hook_block_cid_parts_alter(&$cid_parts, $block) {
+  global $user;
+  // This example shows how to cache a block based on the user's timezone.
+  $cid_parts[] = $user->timezone;
+}
+
 /**
  * @} End of "addtogroup hooks".
  */

modules/block/block.info

@@ -6,8 +6,8 @@ core = 7.x
 files[] = block.test
 configure = admin/structure/block
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/block/block.js

@@ -24,7 +24,7 @@ Drupal.behaviors.blockSettingsSummary = {
     $('fieldset#edit-node-type', context).drupalSetSummary(function (context) {
       var vals = [];
       $('input[type="checkbox"]:checked', context).each(function () {
-        vals.push($.trim($(this).next('label').text()));
+        vals.push($.trim($(this).next('label').html()));
       });
       if (!vals.length) {
         vals.push(Drupal.t('Not restricted'));
@@ -35,7 +35,7 @@ Drupal.behaviors.blockSettingsSummary = {
     $('fieldset#edit-role', context).drupalSetSummary(function (context) {
       var vals = [];
       $('input[type="checkbox"]:checked', context).each(function () {
-        vals.push($.trim($(this).next('label').text()));
+        vals.push($.trim($(this).next('label').html()));
       });
       if (!vals.length) {
         vals.push(Drupal.t('Not restricted'));
@@ -49,7 +49,7 @@ Drupal.behaviors.blockSettingsSummary = {
         return Drupal.t('Not customizable');
       }
       else {
-        return $radio.next('label').text();
+        return $radio.next('label').html();
       }
     });
   }

modules/block/block.test

@@ -75,7 +75,7 @@ class BlockTestCase extends DrupalWebTestCase {
     $bid = db_query("SELECT bid FROM {block_custom} WHERE info = :info", array(':info' => $custom_block['info']))->fetchField();
 
     // Check to see if the custom block was created by checking that it's in the database.
-    $this->assertNotNull($bid, 'Custom block found in database');
+    $this->assertTrue($bid, 'Custom block found in database');
 
     // Check that block_block_view() returns the correct title and content.
     $data = block_block_view($bid);
@@ -305,7 +305,7 @@ class BlockTestCase extends DrupalWebTestCase {
     ))->fetchField();
 
     // Check to see if the block was created by checking that it's in the database.
-    $this->assertNotNull($bid, 'Block found in database');
+    $this->assertTrue($bid, 'Block found in database');
 
     // Check whether the block can be moved to all available regions.
     foreach ($this->regions as $region) {

modules/block/tests/block_test.info

@@ -5,8 +5,8 @@ version = VERSION
 core = 7.x
 hidden = TRUE
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/block/tests/themes/block_test_theme/block_test_theme.info

@@ -13,8 +13,8 @@ regions[footer] = Footer
 regions[highlighted] = Highlighted
 regions[help] = Help
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/blog/blog.info

@@ -5,8 +5,8 @@ version = VERSION
 core = 7.x
 files[] = blog.test
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/blog/blog.module

@@ -152,7 +152,7 @@ function blog_menu_local_tasks_alter(&$data, $router_item, $root_path) {
     }
   }
   // Provide a helper action link to the author on the 'blog/%' page.
-  elseif ($root_path == 'blog/%' && $router_item['page_arguments'][0]->uid == $user->uid) {
+  elseif ($root_path == 'blog/%' && isset($router_item['page_arguments'][0]->uid) && $router_item['page_arguments'][0]->uid == $user->uid) {
     $data['actions']['output']['blog'] = array(
       '#theme' => 'menu_local_action',
     );

modules/book/book.info

@@ -7,8 +7,8 @@ files[] = book.test
 configure = admin/content/book/settings
 stylesheets[all][] = book.css
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/color/color.info

@@ -5,8 +5,8 @@ version = VERSION
 core = 7.x
 files[] = color.test
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/comment/comment.info

@@ -9,8 +9,8 @@ files[] = comment.test
 configure = admin/content/comment
 stylesheets[all][] = comment.css
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/comment/comment.module

@@ -2607,7 +2607,7 @@ function comment_unpublish_action($comment, $context = array()) {
 /**
  * Unpublishes a comment if it contains certain keywords.
  *
- * @param $comment
+ * @param object $comment
  *   Comment object to modify.
  * @param array $context
  *   Array with components:
@@ -2619,10 +2619,13 @@ function comment_unpublish_action($comment, $context = array()) {
  * @see comment_unpublish_by_keyword_action_submit()
  */
 function comment_unpublish_by_keyword_action($comment, $context) {
+  $node = node_load($comment->nid);
+  $build = comment_view($comment, $node);
+  $text = drupal_render($build);
   foreach ($context['keywords'] as $keyword) {
-    $text = drupal_render($comment);
     if (strpos($text, $keyword) !== FALSE) {
       $comment->status = COMMENT_NOT_PUBLISHED;
+      comment_save($comment);
       watchdog('action', 'Unpublished comment %subject.', array('%subject' => $comment->subject));
       break;
     }

modules/comment/comment.test

@@ -13,7 +13,7 @@ class CommentHelperCase extends DrupalWebTestCase {
   function setUp() {
     parent::setUp('comment', 'search');
     // Create users and test node.
-    $this->admin_user = $this->drupalCreateUser(array('administer content types', 'administer comments', 'administer blocks'));
+    $this->admin_user = $this->drupalCreateUser(array('administer content types', 'administer comments', 'administer blocks', 'administer actions', 'administer fields'));
     $this->web_user = $this->drupalCreateUser(array('access comments', 'post comments', 'create article content', 'edit own comments'));
     $this->node = $this->drupalCreateNode(array('type' => 'article', 'promote' => 1, 'uid' => $this->web_user->uid));
   }
@@ -1973,6 +1973,41 @@ class CommentActionsTestCase extends CommentHelperCase {
     $this->clearWatchdog();
   }
 
+  /**
+   * Tests the unpublish comment by keyword action.
+   */
+  public function testCommentUnpublishByKeyword() {
+    $this->drupalLogin($this->admin_user);
+    $callback = 'comment_unpublish_by_keyword_action';
+    $hash = drupal_hash_base64($callback);
+    $comment_text = $keywords = $this->randomName();
+    $edit = array(
+      'actions_label' => $callback,
+      'keywords' => $keywords,
+    );
+
+    $this->drupalPost("admin/config/system/actions/configure/$hash", $edit, t('Save'));
+
+    $action = db_query("SELECT aid, type, callback, parameters, label FROM {actions} WHERE callback = :callback", array(':callback' => $callback))->fetchObject();
+
+    $this->assertTrue($action, 'The action could be loaded.');
+
+    $comment = $this->postComment($this->node, $comment_text, $this->randomName());
+
+    // Load the full comment so that status is available.
+    $comment = comment_load($comment->id);
+
+    $this->assertTrue($comment->status == COMMENT_PUBLISHED, 'The comment status was set to published.');
+
+    comment_unpublish_by_keyword_action($comment, array('keywords' => array($keywords)));
+
+    // We need to make sure that the comment has been saved with status
+    // unpublished.
+    $this->assertEqual(comment_load($comment->cid)->status, COMMENT_NOT_PUBLISHED, 'Comment was unpublished.');
+    $this->assertWatchdogMessage('Unpublished comment %subject.', array('%subject' => $comment->subject), 'Found watchdog message.');
+    $this->clearWatchdog();
+  }
+
   /**
    * Verify that a watchdog message has been entered.
    *

modules/contact/contact.info

@@ -6,8 +6,8 @@ core = 7.x
 files[] = contact.test
 configure = admin/structure/contact
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/contact/contact.pages.inc

@@ -134,7 +134,7 @@ function contact_site_form_submit($form, &$form_state) {
   global $user, $language;
 
   $values = $form_state['values'];
-  $values['sender'] = $user;
+  $values['sender'] = clone $user;
   $values['sender']->name = $values['name'];
   $values['sender']->mail = $values['mail'];
   $values['category'] = contact_load($values['cid']);
@@ -270,7 +270,7 @@ function contact_personal_form_submit($form, &$form_state) {
   global $user, $language;
 
   $values = $form_state['values'];
-  $values['sender'] = $user;
+  $values['sender'] = clone $user;
   $values['sender']->name = $values['name'];
   $values['sender']->mail = $values['mail'];
 

modules/contextual/contextual.info

@@ -5,8 +5,8 @@ version = VERSION
 core = 7.x
 files[] = contextual.test
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/dashboard/dashboard.info

@@ -7,8 +7,8 @@ files[] = dashboard.test
 dependencies[] = block
 configure = admin/dashboard/customize
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/dblog/dblog.admin.inc

@@ -294,11 +294,18 @@ function theme_dblog_message($variables) {
     else {
       $output = t($event->message, unserialize($event->variables));
     }
+    // If the output is expected to be a link, strip all the tags and
+    // special characters by using filter_xss() without any allowed tags.
+    // If not, use filter_xss_admin() to allow some tags.
     if ($variables['link'] && isset($event->wid)) {
-      // Truncate message to 56 chars.
+      // Truncate message to 56 chars after stripping all the tags.
       $output = truncate_utf8(filter_xss($output, array()), 56, TRUE, TRUE);
       $output = l($output, 'admin/reports/event/' . $event->wid, array('html' => TRUE));
     }
+    else {
+      // Prevent XSS in log detail pages.
+      $output = filter_xss_admin($output);
+    }
   }
   return $output;
 }

modules/dblog/dblog.info

@@ -5,8 +5,8 @@ version = VERSION
 core = 7.x
 files[] = dblog.test
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/dblog/dblog.install

@@ -154,6 +154,15 @@ function dblog_update_7002() {
   db_add_index('watchdog', 'severity', array('severity'));
 }
 
+/**
+ * Account for possible legacy systems where dblog was not installed.
+ */
+function dblog_update_7003() {
+  if (!db_table_exists('watchdog')) {
+    db_create_table('watchdog', drupal_get_schema_unprocessed('dblog', 'watchdog'));
+  }
+}
+
 /**
  * @} End of "addtogroup updates-7.x-extra".
  */

modules/dblog/dblog.module

@@ -144,20 +144,30 @@ function _dblog_get_message_types() {
  * Note: Some values may be truncated to meet database column size restrictions.
  */
 function dblog_watchdog(array $log_entry) {
-  Database::getConnection('default', 'default')->insert('watchdog')
-    ->fields(array(
-      'uid' => $log_entry['uid'],
-      'type' => substr($log_entry['type'], 0, 64),
-      'message' => $log_entry['message'],
-      'variables' => serialize($log_entry['variables']),
-      'severity' => $log_entry['severity'],
-      'link' => substr($log_entry['link'], 0, 255),
-      'location' => $log_entry['request_uri'],
-      'referer' => $log_entry['referer'],
-      'hostname' => substr($log_entry['ip'], 0, 128),
-      'timestamp' => $log_entry['timestamp'],
-    ))
-    ->execute();
+  if (!function_exists('drupal_substr')) {
+    require_once DRUPAL_ROOT . '/includes/unicode.inc';
+  }
+  try {
+    Database::getConnection('default', 'default')->insert('watchdog')
+      ->fields(array(
+        'uid' => $log_entry['uid'],
+        'type' => drupal_substr($log_entry['type'], 0, 64),
+        'message' => $log_entry['message'],
+        'variables' => serialize($log_entry['variables']),
+        'severity' => $log_entry['severity'],
+        'link' => drupal_substr($log_entry['link'], 0, 255),
+        'location' => $log_entry['request_uri'],
+        'referer' => $log_entry['referer'],
+        'hostname' => drupal_substr($log_entry['ip'], 0, 128),
+        'timestamp' => $log_entry['timestamp'],
+      ))
+      ->execute();
+  }
+  catch (Exception $e) {
+    // Exception is ignored so that watchdog does not break pages during the
+    // installation process or is not able to create the watchdog table during
+    // installation.
+  }
 }
 
 /**

modules/field/field.api.php

@@ -1897,7 +1897,7 @@ function hook_field_storage_write($entity_type, $entity, $op, $fields) {
       $items = (array) $entity->{$field_name}[$langcode];
       $delta_count = 0;
       foreach ($items as $delta => $item) {
-        // We now know we have someting to insert.
+        // We now know we have something to insert.
         $do_insert = TRUE;
         $record = array(
           'entity_type' => $entity_type,

modules/field/field.crud.inc

@@ -189,7 +189,7 @@ function field_create_field($field) {
   }
 
   // Clear caches
-  field_cache_clear(TRUE);
+  field_cache_clear();
 
   // Invoke external hooks after the cache is cleared for API consistency.
   module_invoke_all('field_create_field', $field);
@@ -288,7 +288,7 @@ function field_update_field($field) {
   drupal_write_record('field_config', $field, $primary_key);
 
   // Clear caches
-  field_cache_clear(TRUE);
+  field_cache_clear();
 
   // Invoke external hooks after the cache is cleared for API consistency.
   module_invoke_all('field_update_field', $field, $prior_field, $has_data);
@@ -430,7 +430,7 @@ function field_delete_field($field_name) {
     ->execute();
 
   // Clear the cache.
-  field_cache_clear(TRUE);
+  field_cache_clear();
 
   module_invoke_all('field_delete_field', $field);
 }

modules/field/field.info

@@ -11,8 +11,8 @@ dependencies[] = field_sql_storage
 required = TRUE
 stylesheets[all][] = theme/field.css
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/field/field.info.class.inc

@@ -612,10 +612,12 @@ class FieldInfo {
     // Fill in default values.
     $display += array(
       'label' => 'above',
-      'type' => $field_type_info['default_formatter'],
       'settings' => array(),
       'weight' => 0,
     );
+    if (empty($display['type'])) {
+      $display['type'] = $field_type_info['default_formatter'];
+    }
     if ($display['type'] != 'hidden') {
       $formatter_type_info = field_info_formatter_types($display['type']);
       // Fall back to default formatter if formatter type is not available.

modules/field/field.install

@@ -467,6 +467,27 @@ function field_update_7003() {
   // Empty update to force a rebuild of the registry.
 }
 
+/**
+ * Grant the new "administer fields" permission to trusted users.
+ */
+function field_update_7004() {
+  // Assign the permission to anyone that already has a trusted core permission
+  // that would have previously let them administer fields on an entity type.
+  $rids = array();
+  $permissions = array(
+    'administer site configuration',
+    'administer content types',
+    'administer users',
+  );
+  foreach ($permissions as $permission) {
+    $rids = array_merge($rids, array_keys(user_roles(FALSE, $permission)));
+  }
+  $rids = array_unique($rids);
+  foreach ($rids as $rid) {
+    _update_7000_user_role_grant_permissions($rid, array('administer fields'), 'field');
+  }
+}
+
 /**
  * @} End of "addtogroup updates-7.x-extra".
  */

modules/field/field.module

@@ -316,6 +316,21 @@ function field_help($path, $arg) {
   }
 }
 
+/**
+ * Implements hook_permission().
+ */
+function field_permission() {
+  return array(
+    'administer fields' => array(
+      'title' => t('Administer fields'),
+      'description' => t('Additional permissions are required based on what the fields are attached to (for example, <a href="@url">administer content types</a> to manage fields attached to content).', array(
+        '@url' => '#module-node',
+      )),
+      'restrict access' => TRUE,
+    ),
+  );
+}
+
 /**
  * Implements hook_theme().
  */
@@ -894,6 +909,7 @@ function field_view_field($entity_type, $entity, $field_name, $display = array()
       'entity' => $entity,
       'view_mode' => '_custom',
       'display' => $display,
+      'language' => $langcode,
     );
     drupal_alter('field_attach_view', $result, $context);
 

modules/field/modules/field_sql_storage/field_sql_storage.info

@@ -7,8 +7,8 @@ dependencies[] = field
 files[] = field_sql_storage.test
 required = TRUE
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/field/modules/field_sql_storage/field_sql_storage.module

@@ -223,7 +223,17 @@ function _field_sql_storage_schema($field) {
   foreach ($field['indexes'] as $index_name => $columns) {
     $real_name = _field_sql_storage_indexname($field['field_name'], $index_name);
     foreach ($columns as $column_name) {
-      $current['indexes'][$real_name][] = _field_sql_storage_columnname($field['field_name'], $column_name);
+      // Indexes can be specified as either a column name or an array with
+      // column name and length. Allow for either case.
+      if (is_array($column_name)) {
+        $current['indexes'][$real_name][] = array(
+          _field_sql_storage_columnname($field['field_name'], $column_name[0]),
+          $column_name[1],
+        );
+      }
+      else {
+        $current['indexes'][$real_name][] = _field_sql_storage_columnname($field['field_name'], $column_name);
+      }
     }
   }
 
@@ -332,7 +342,17 @@ function field_sql_storage_field_storage_update_field($field, $prior_field, $has
         $real_name = _field_sql_storage_indexname($field['field_name'], $name);
         $real_columns = array();
         foreach ($columns as $column_name) {
-          $real_columns[] = _field_sql_storage_columnname($field['field_name'], $column_name);
+          // Indexes can be specified as either a column name or an array with
+          // column name and length. Allow for either case.
+          if (is_array($column_name)) {
+            $real_columns[] = array(
+              _field_sql_storage_columnname($field['field_name'], $column_name[0]),
+              $column_name[1],
+            );
+          }
+          else {
+            $real_columns[] = _field_sql_storage_columnname($field['field_name'], $column_name);
+          }
         }
         db_add_index($table, $real_name, $real_columns);
         db_add_index($revision_table, $real_name, $real_columns);
@@ -465,7 +485,7 @@ function field_sql_storage_field_storage_write($entity_type, $entity, $op, $fiel
       $items = (array) $entity->{$field_name}[$langcode];
       $delta_count = 0;
       foreach ($items as $delta => $item) {
-        // We now know we have someting to insert.
+        // We now know we have something to insert.
         $do_insert = TRUE;
         $record = array(
           'entity_type' => $entity_type,

modules/field/modules/field_sql_storage/field_sql_storage.test

@@ -355,14 +355,14 @@ class FieldSqlStorageTestCase extends DrupalWebTestCase {
     field_attach_insert('test_entity', $entity);
 
     // Add an index
-    $field = array('field_name' => $field_name, 'indexes' => array('value' => array('value')));
+    $field = array('field_name' => $field_name, 'indexes' => array('value' => array(array('value', 255))));
     field_update_field($field);
     foreach ($tables as $table) {
       $this->assertTrue(Database::getConnection()->schema()->indexExists($table, "{$field_name}_value"), format_string("Index on value created in %table", array('%table' => $table)));
     }
 
     // Add a different index, removing the existing custom one.
-    $field = array('field_name' => $field_name, 'indexes' => array('value_format' => array('value', 'format')));
+    $field = array('field_name' => $field_name, 'indexes' => array('value_format' => array(array('value', 127), array('format', 127))));
     field_update_field($field);
     foreach ($tables as $table) {
       $this->assertTrue(Database::getConnection()->schema()->indexExists($table, "{$field_name}_value_format"), format_string("Index on value_format created in %table", array('%table' => $table)));

modules/field/modules/list/list.info

@@ -7,8 +7,8 @@ dependencies[] = field
 dependencies[] = options
 files[] = tests/list.test
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/field/modules/list/tests/list.test

@@ -212,7 +212,7 @@ class ListFieldUITestCase extends FieldTestCase {
     parent::setUp('field_test', 'field_ui');
 
     // Create test user.
-    $admin_user = $this->drupalCreateUser(array('access content', 'administer content types', 'administer taxonomy'));
+    $admin_user = $this->drupalCreateUser(array('access content', 'administer content types', 'administer taxonomy', 'administer fields'));
     $this->drupalLogin($admin_user);
 
     // Create content type, with underscores.

modules/field/modules/list/tests/list_test.info

@@ -5,8 +5,8 @@ package = Testing
 version = VERSION
 hidden = TRUE
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/field/modules/number/number.info

@@ -6,8 +6,8 @@ core = 7.x
 dependencies[] = field
 files[] = number.test
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/field/modules/number/number.module

@@ -188,7 +188,7 @@ function number_field_formatter_info() {
       'label' => t('Default'),
       'field types' => array('number_integer'),
       'settings' =>  array(
-        'thousand_separator' => ' ',
+        'thousand_separator' => '',
         // The 'decimal_separator' and 'scale' settings are not configurable
         // through the UI, and will therefore keep their default values. They
         // are only present so that the 'number_integer' and 'number_decimal'
@@ -202,7 +202,7 @@ function number_field_formatter_info() {
       'label' => t('Default'),
       'field types' => array('number_decimal', 'number_float'),
       'settings' =>  array(
-        'thousand_separator' => ' ',
+        'thousand_separator' => '',
         'decimal_separator' => '.',
         'scale' => 2,
         'prefix_suffix' => TRUE,
@@ -222,6 +222,8 @@ function number_field_formatter_settings_form($field, $instance, $view_mode, $fo
   $display = $instance['display'][$view_mode];
   $settings = $display['settings'];
 
+  $element = array();
+
   if ($display['type'] == 'number_decimal' || $display['type'] == 'number_integer') {
     $options = array(
       ''  => t('<none>'),

modules/field/modules/number/number.test

@@ -23,7 +23,7 @@ class NumberFieldTestCase extends DrupalWebTestCase {
 
   function setUp() {
     parent::setUp('field_test');
-    $this->web_user = $this->drupalCreateUser(array('access field_test content', 'administer field_test content', 'administer content types'));
+    $this->web_user = $this->drupalCreateUser(array('access field_test content', 'administer field_test content', 'administer content types', 'administer fields'));
     $this->drupalLogin($this->web_user);
   }
 

modules/field/modules/options/options.info

@@ -6,8 +6,8 @@ core = 7.x
 dependencies[] = field
 files[] = options.test
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/field/modules/options/options.module

@@ -185,6 +185,7 @@ function _options_properties($type, $multiple, $required, $has_value) {
   $base = array(
     'filter_xss' => FALSE,
     'strip_tags' => FALSE,
+    'strip_tags_and_unescape' => FALSE,
     'empty_option' => FALSE,
     'optgroups' => FALSE,
   );
@@ -195,7 +196,7 @@ function _options_properties($type, $multiple, $required, $has_value) {
     case 'select':
       $properties = array(
         // Select boxes do not support any HTML tag.
-        'strip_tags' => TRUE,
+        'strip_tags_and_unescape' => TRUE,
         'optgroups' => TRUE,
       );
       if ($multiple) {
@@ -271,9 +272,16 @@ function _options_prepare_options(&$options, $properties) {
       _options_prepare_options($options[$value], $properties);
     }
     else {
+      // The 'strip_tags' option is deprecated. Use 'strip_tags_and_unescape'
+      // when plain text is required (and where the output will be run through
+      // check_plain() before being inserted back into HTML) or 'filter_xss'
+      // when HTML is required.
       if ($properties['strip_tags']) {
         $options[$value] = strip_tags($label);
       }
+      if ($properties['strip_tags_and_unescape']) {
+        $options[$value] = decode_entities(strip_tags($label));
+      }
       if ($properties['filter_xss']) {
         $options[$value] = field_filter_xss($label);
       }

modules/field/modules/options/options.test

@@ -24,7 +24,7 @@ class OptionsWidgetsTestCase extends FieldTestCase {
       'cardinality' => 1,
       'settings' => array(
         // Make sure that 0 works as an option.
-        'allowed_values' => array(0 => 'Zero', 1 => 'One', 2 => 'Some <script>dangerous</script> & unescaped <strong>markup</strong>'),
+        'allowed_values' => array(0 => 'Zero', 1 => 'One', 2 => 'Some <script>dangerous</script> & unescaped <strong>markup</strong>',  3 => 'Some HTML encoded markup with &lt; &amp; &gt;'),
       ),
     );
     $this->card_1 = field_create_field($this->card_1);
@@ -54,7 +54,7 @@ class OptionsWidgetsTestCase extends FieldTestCase {
     $this->bool = field_create_field($this->bool);
 
     // Create a web user.
-    $this->web_user = $this->drupalCreateUser(array('access field_test content', 'administer field_test content'));
+    $this->web_user = $this->drupalCreateUser(array('access field_test content', 'administer field_test content', 'administer fields'));
     $this->drupalLogin($this->web_user);
   }
 
@@ -233,6 +233,7 @@ class OptionsWidgetsTestCase extends FieldTestCase {
     $this->assertNoOptionSelected("edit-card-1-$langcode", 1);
     $this->assertNoOptionSelected("edit-card-1-$langcode", 2);
     $this->assertRaw('Some dangerous &amp; unescaped markup', 'Option text was properly filtered.');
+    $this->assertRaw('Some HTML encoded markup with &lt; &amp; &gt;', 'HTML entities in option text were properly handled and not double-encoded');
 
     // Submit form: select invalid 'none' option.
     $edit = array("card_1[$langcode]" => '_none');
@@ -459,7 +460,7 @@ class OptionsWidgetsTestCase extends FieldTestCase {
     $this->assertNoFieldChecked("edit-bool-$langcode");
 
     // Create admin user.
-    $admin_user = $this->drupalCreateUser(array('access content', 'administer content types', 'administer taxonomy'));
+    $admin_user = $this->drupalCreateUser(array('access content', 'administer content types', 'administer taxonomy', 'administer fields'));
     $this->drupalLogin($admin_user);
 
     // Create a test field instance.

modules/field/modules/text/text.info

@@ -7,8 +7,8 @@ dependencies[] = field
 files[] = text.test
 required = TRUE
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/field/modules/text/text.module

@@ -223,11 +223,13 @@ function text_field_formatter_settings_form($field, $instance, $view_mode, $form
 
   if (strpos($display['type'], '_trimmed') !== FALSE) {
     $element['trim_length'] = array(
-      '#title' => t('Trim length'),
+      '#title' => t('Trimmed limit'),
       '#type' => 'textfield',
+      '#field_suffix' => t('characters'),
       '#size' => 10,
       '#default_value' => $settings['trim_length'],
       '#element_validate' => array('element_validate_integer_positive'),
+      '#description' => t('If the summary is not set, the trimmed %label field will be shorter than this character limit.', array('%label' => $instance['label'])),
       '#required' => TRUE,
     );
   }
@@ -245,7 +247,7 @@ function text_field_formatter_settings_summary($field, $instance, $view_mode) {
   $summary = '';
 
   if (strpos($display['type'], '_trimmed') !== FALSE) {
-    $summary = t('Trim length') . ': ' . check_plain($settings['trim_length']);
+    $summary = t('Trimmed limit: @trim_length characters', array('@trim_length' => $settings['trim_length']));
   }
 
   return $summary;

modules/field/modules/text/text.test

@@ -424,6 +424,7 @@ class TextTranslationTestCase extends DrupalWebTestCase {
       'administer content types',
       'access administration pages',
       'bypass node access',
+      'administer fields',
       filter_permission_name($full_html_format),
     ));
     $this->translator = $this->drupalCreateUser(array('create article content', 'edit own article content', 'translate content'));

modules/field/tests/field.test

@@ -2206,11 +2206,12 @@ class FieldDisplayAPITestCase extends FieldTestCase {
         'alter' => TRUE,
       ),
     );
-    $output = field_view_field('test_entity', $this->entity, $this->field_name, $display);
+    $output = field_view_field('test_entity', $this->entity, $this->field_name, $display, LANGUAGE_NONE);
     $this->drupalSetContent(drupal_render($output));
     $setting = $display['settings']['test_formatter_setting_multiple'];
     $this->assertNoText($this->label, 'Label was not displayed.');
     $this->assertText('field_test_field_attach_view_alter', 'Alter fired, display passed.');
+    $this->assertText('field language is ' . LANGUAGE_NONE, 'Language is placed onto the context.');
     $array = array();
     foreach ($this->values as $delta => $value) {
       $array[] = $delta . ':' . $value['value'];

modules/field/tests/field_test.info

@@ -6,8 +6,8 @@ files[] = field_test.entity.inc
 version = VERSION
 hidden = TRUE
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/field/tests/field_test.module

@@ -220,6 +220,10 @@ function field_test_field_attach_view_alter(&$output, $context) {
   if (!empty($context['display']['settings']['alter'])) {
     $output['test_field'][] = array('#markup' => 'field_test_field_attach_view_alter');
   }
+
+  if (isset($output['test_field'])) {
+    $output['test_field'][] = array('#markup' => 'field language is ' . $context['language']);
+  }
 }
 
 /**

modules/field_ui/field_ui.admin.inc

@@ -2105,6 +2105,10 @@ function field_ui_next_destination($entity_type, $bundle) {
   $destinations = !empty($_REQUEST['destinations']) ? $_REQUEST['destinations'] : array();
   if (!empty($destinations)) {
     unset($_REQUEST['destinations']);
+  }
+  // Remove any external URLs.
+  $destinations = array_diff($destinations, array_filter($destinations, 'url_is_external'));
+  if ($destinations) {
     return field_ui_get_destinations($destinations);
   }
   $admin_path = _field_ui_bundle_admin_path($entity_type, $bundle);

modules/field_ui/field_ui.info

@@ -6,8 +6,8 @@ core = 7.x
 dependencies[] = field
 files[] = field_ui.test
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"
 

modules/field_ui/field_ui.js

@@ -168,7 +168,7 @@ Drupal.fieldUIOverview = {
     var dragObject = this;
     var row = dragObject.rowObject.element;
     var rowHandler = $(row).data('fieldUIRowHandler');
-    if (rowHandler !== undefined) {
+    if (typeof rowHandler !== 'undefined') {
       var regionRow = $(row).prevAll('tr.region-message').get(0);
       var region = regionRow.className.replace(/([^ ]+[ ]+)*region-([^ ]+)-message([ ]+[^ ]+)*/, '$2');
 
@@ -319,7 +319,7 @@ Drupal.fieldUIDisplayOverview.field.prototype = {
         if (currentValue == 'hidden') {
           // Restore the formatter back to the default formatter. Pseudo-fields do
           // not have default formatters, we just return to 'visible' for those.
-          var value = (this.defaultFormatter != undefined) ? this.defaultFormatter : 'visible';
+          var value = (typeof this.defaultFormatter !== 'undefined') ? this.defaultFormatter : this.$formatSelect.find('option').val();
         }
         break;
 

modules/field_ui/field_ui.module

@@ -106,9 +106,19 @@ function field_ui_menu() {
           $access = array_intersect_key($bundle_info['admin'], drupal_map_assoc(array('access callback', 'access arguments')));
           $access += array(
             'access callback' => 'user_access',
-            'access arguments' => array('administer site configuration'),
+            'access arguments' => array('administer fields'),
           );
 
+          // Add the "administer fields" permission on top of the access
+          // restriction because the field UI should only be accessible to
+          // trusted users.
+          if ($access['access callback'] != 'user_access' || $access['access arguments'] != array('administer fields')) {
+            $access = array(
+              'access callback' => 'field_ui_admin_access',
+              'access arguments' => array($access['access callback'], $access['access arguments']),
+            );
+          }
+
           $items["$path/fields"] = array(
             'title' => 'Manage fields',
             'page callback' => 'drupal_get_form',
@@ -392,3 +402,13 @@ function field_ui_form_node_type_form_submit($form, &$form_state) {
     $form_state['redirect'] = _field_ui_bundle_admin_path('node', $form_state['values']['type']) .'/fields';
   }
 }
+
+/**
+ * Access callback to determine if a user is allowed to use the field UI.
+ *
+ * Only grant access if the user has both the "administer fields" permission and
+ * is granted access by the entity specific restrictions.
+ */
+function field_ui_admin_access($access_callback, $access_arguments) {
+  return user_access('administer fields') && call_user_func_array($access_callback, $access_arguments);
+}

modules/field_ui/field_ui.test

@@ -22,7 +22,7 @@ class FieldUITestCase extends DrupalWebTestCase {
     parent::setUp($modules);
 
     // Create test user.
-    $admin_user = $this->drupalCreateUser(array('access content', 'administer content types', 'administer taxonomy'));
+    $admin_user = $this->drupalCreateUser(array('access content', 'administer content types', 'administer taxonomy', 'administer fields'));
     $this->drupalLogin($admin_user);
 
     // Create content type, with underscores.
@@ -445,6 +445,19 @@ class FieldUIManageFieldsTestCase extends FieldUITestCase {
     $this->assertText(t('The machine-readable name is already in use. It must be unique.'));
     $this->assertUrl($url, array(), 'Stayed on the same page.');
   }
+
+  /**
+   * Tests that external URLs in the 'destinations' query parameter are blocked.
+   */
+  function testExternalDestinations() {
+    $path = 'admin/structure/types/manage/article/fields/field_tags/field-settings';
+    $options = array(
+      'query' => array('destinations' => array('http://example.com')),
+    );
+    $this->drupalPost($path, NULL, t('Save field settings'), $options);
+
+    $this->assertUrl('admin/structure/types/manage/article/fields', array(), 'Stayed on the same site.');
+  }
 }
 
 /**
@@ -682,7 +695,7 @@ class FieldUIAlterTestCase extends DrupalWebTestCase {
     parent::setUp(array('field_test'));
 
     // Create test user.
-    $admin_user = $this->drupalCreateUser(array('access content', 'administer content types', 'administer users'));
+    $admin_user = $this->drupalCreateUser(array('access content', 'administer content types', 'administer users', 'administer fields'));
     $this->drupalLogin($admin_user);
   }
 

modules/file/file.field.inc

@@ -252,6 +252,12 @@ function file_field_insert($entity_type, $entity, $field, $instance, $langcode,
  * Checks for files that have been removed from the object.
  */
 function file_field_update($entity_type, $entity, $field, $instance, $langcode, &$items) {
+  // Check whether the field is defined on the object.
+  if (!isset($entity->{$field['field_name']})) {
+    // We cannot check for removed files if the field is not defined.
+    return;
+  }
+
   list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
 
   // On new revisions, all files are considered to be a new usage and no
@@ -626,7 +632,7 @@ function file_field_widget_process($element, &$form_state, $form) {
   $element['#theme'] = 'file_widget';
 
   // Add the display field if enabled.
-  if (!empty($field['settings']['display_field']) && $item['fid']) {
+  if (!empty($field['settings']['display_field'])) {
     $element['display'] = array(
       '#type' => empty($item['fid']) ? 'hidden' : 'checkbox',
       '#title' => t('Include file in display'),

modules/file/file.info

@@ -6,8 +6,8 @@ core = 7.x
 dependencies[] = field
 files[] = tests/file.test
 
-; Information added by Drupal.org packaging script on 2014-11-19
-version = "7.34"
+; Information added by Drupal.org packaging script on 2016-12-07
+version = "7.53"
 project = "drupal"
-datestamp = "1416429488"
+datestamp = "1481152423"