added metatag module, added google-site-verification meta

sites/all/modules/contrib/admin/metatag/.codeclimate.yml

@@ -0,0 +1,25 @@
+---
+engines:
+  csslint:
+    enabled: true
+  duplication:
+    enabled: true
+    config:
+      languages:
+      - javascript
+      - php
+  eslint:
+    enabled: true
+  fixme:
+    enabled: true
+  phpmd:
+    enabled: true
+ratings:
+  paths:
+  - "**.css"
+  - "**.inc"
+  - "**.install"
+  - "**.js"
+  - "**.module"
+  - "**.php"
+  - "**.test"

sites/all/modules/contrib/admin/metatag/.csslintrc

@@ -0,0 +1,2 @@
+--exclude-exts=.min.css
+--ignore=adjoining-classes,box-model,ids,order-alphabetical,unqualified-attributes

sites/all/modules/contrib/admin/metatag/.eslintignore

@@ -0,0 +1 @@
+**/*{.,-}min.js

sites/all/modules/contrib/admin/metatag/.eslintrc

@@ -0,0 +1,213 @@
+ecmaFeatures:
+  modules: true
+  jsx: true
+
+env:
+  amd: true
+  browser: true
+  es6: true
+  jquery: true
+  node: true
+
+# http://eslint.org/docs/rules/
+rules:
+  # Possible Errors
+  comma-dangle: [2, never]
+  no-cond-assign: 2
+  no-console: 0
+  no-constant-condition: 2
+  no-control-regex: 2
+  no-debugger: 2
+  no-dupe-args: 2
+  no-dupe-keys: 2
+  no-duplicate-case: 2
+  no-empty: 2
+  no-empty-character-class: 2
+  no-ex-assign: 2
+  no-extra-boolean-cast: 2
+  no-extra-parens: 0
+  no-extra-semi: 2
+  no-func-assign: 2
+  no-inner-declarations: [2, functions]
+  no-invalid-regexp: 2
+  no-irregular-whitespace: 2
+  no-negated-in-lhs: 2
+  no-obj-calls: 2
+  no-regex-spaces: 2
+  no-sparse-arrays: 2
+  no-unexpected-multiline: 2
+  no-unreachable: 2
+  use-isnan: 2
+  valid-jsdoc: 0
+  valid-typeof: 2
+
+  # Best Practices
+  accessor-pairs: 2
+  block-scoped-var: 0
+  complexity: [2, 6]
+  consistent-return: 0
+  curly: 0
+  default-case: 0
+  dot-location: 0
+  dot-notation: 0
+  eqeqeq: 2
+  guard-for-in: 2
+  no-alert: 2
+  no-caller: 2
+  no-case-declarations: 2
+  no-div-regex: 2
+  no-else-return: 0
+  no-empty-label: 2
+  no-empty-pattern: 2
+  no-eq-null: 2
+  no-eval: 2
+  no-extend-native: 2
+  no-extra-bind: 2
+  no-fallthrough: 2
+  no-floating-decimal: 0
+  no-implicit-coercion: 0
+  no-implied-eval: 2
+  no-invalid-this: 0
+  no-iterator: 2
+  no-labels: 0
+  no-lone-blocks: 2
+  no-loop-func: 2
+  no-magic-number: 0
+  no-multi-spaces: 0
+  no-multi-str: 0
+  no-native-reassign: 2
+  no-new-func: 2
+  no-new-wrappers: 2
+  no-new: 2
+  no-octal-escape: 2
+  no-octal: 2
+  no-proto: 2
+  no-redeclare: 2
+  no-return-assign: 2
+  no-script-url: 2
+  no-self-compare: 2
+  no-sequences: 0
+  no-throw-literal: 0
+  no-unused-expressions: 2
+  no-useless-call: 2
+  no-useless-concat: 2
+  no-void: 2
+  no-warning-comments: 0
+  no-with: 2
+  radix: 2
+  vars-on-top: 0
+  wrap-iife: 2
+  yoda: 0
+
+  # Strict
+  strict: 0
+
+  # Variables
+  init-declarations: 0
+  no-catch-shadow: 2
+  no-delete-var: 2
+  no-label-var: 2
+  no-shadow-restricted-names: 2
+  no-shadow: 0
+  no-undef-init: 2
+  no-undef: 0
+  no-undefined: 0
+  no-unused-vars: 0
+  no-use-before-define: 0
+
+  # Node.js and CommonJS
+  callback-return: 2
+  global-require: 2
+  handle-callback-err: 2
+  no-mixed-requires: 0
+  no-new-require: 0
+  no-path-concat: 2
+  no-process-exit: 2
+  no-restricted-modules: 0
+  no-sync: 0
+
+  # Stylistic Issues
+  array-bracket-spacing: 0
+  block-spacing: 0
+  brace-style: 0
+  camelcase: 0
+  comma-spacing: 0
+  comma-style: 0
+  computed-property-spacing: 0
+  consistent-this: 0
+  eol-last: 0
+  func-names: 0
+  func-style: 0
+  id-length: 0
+  id-match: 0
+  indent: 0
+  jsx-quotes: 0
+  key-spacing: 0
+  linebreak-style: 0
+  lines-around-comment: 0
+  max-depth: 0
+  max-len: 0
+  max-nested-callbacks: 0
+  max-params: 0
+  max-statements: [2, 30]
+  new-cap: 0
+  new-parens: 0
+  newline-after-var: 0
+  no-array-constructor: 0
+  no-bitwise: 0
+  no-continue: 0
+  no-inline-comments: 0
+  no-lonely-if: 0
+  no-mixed-spaces-and-tabs: 0
+  no-multiple-empty-lines: 0
+  no-negated-condition: 0
+  no-nested-ternary: 0
+  no-new-object: 0
+  no-plusplus: 0
+  no-restricted-syntax: 0
+  no-spaced-func: 0
+  no-ternary: 0
+  no-trailing-spaces: 0
+  no-underscore-dangle: 0
+  no-unneeded-ternary: 0
+  object-curly-spacing: 0
+  one-var: 0
+  operator-assignment: 0
+  operator-linebreak: 0
+  padded-blocks: 0
+  quote-props: 0
+  quotes: 0
+  require-jsdoc: 0
+  semi-spacing: 0
+  semi: 0
+  sort-vars: 0
+  space-after-keywords: 0
+  space-before-blocks: 0
+  space-before-function-paren: 0
+  space-before-keywords: 0
+  space-in-parens: 0
+  space-infix-ops: 0
+  space-return-throw-case: 0
+  space-unary-ops: 0
+  spaced-comment: 0
+  wrap-regex: 0
+
+  # ECMAScript 6
+  arrow-body-style: 0
+  arrow-parens: 0
+  arrow-spacing: 0
+  constructor-super: 0
+  generator-star-spacing: 0
+  no-arrow-condition: 0
+  no-class-assign: 0
+  no-const-assign: 0
+  no-dupe-class-members: 0
+  no-this-before-super: 0
+  no-var: 0
+  object-shorthand: 0
+  prefer-arrow-callback: 0
+  prefer-const: 0
+  prefer-reflect: 0
+  prefer-spread: 0
+  prefer-template: 0
+  require-yield: 0

sites/all/modules/contrib/admin/metatag/CHANGELOG.txt

@@ -0,0 +1,513 @@
+Metatag 8.x-1.7, 2018-08-31
+---------------------------
+#2994979 by DamienMcKenna, dspachos, ynotpeanutbutter, oxy86, IT-Cru, kdeds,
+  zenimagine: Fixed backwards compatibility break when support for multiple-
+  value tags was added.
+#2990923 by th_tushar, DamienMcKenna: Fixed  coding standards.
+
+
+Metatag 8.x-1.6, 2018-08-21
+---------------------------
+#2961777 by thejimbirch, Baysaa: "Geographical position" (geo.position) should
+  use semi-colon instead of comma.
+#2964626 by idebr: og:image:secure_url allows for multiple values.
+#2865267 by DamienMcKenna, okonvicka, aldibier: <title> tags empty after
+  installing Metatag.
+#2962426 by dragonwize: Image URL double encoded.
+#2973277 by mvantuch, DamienMcKenna: Support for og:image:alt.
+#2977002 by DamienMcKenna, maxoid: Enable testing on the two og product meta
+  tags.
+#2977545 by pmelab, bappa.sarkar, DamienMcKenna: GraphQL throws an error due to
+  Metatag's use of a custom data structure.
+#2925714 by acbramley, vakulrai, Berdir, nkoporec: Replace deprecated
+  BaseFieldDefinition ::setQueryable.
+#2957411 by pmelab: Field item empty check on empty arrays.
+#2958743 by DamienMcKenna, AdamEvertsson, StepanISK, trong.nguyen.tcec,
+  chiefme, quixxel, rjg, CProfessionals: Ignore update.php requests when
+  loading entities; error message when updating from 8.x-1.0 to 8.x-1.5.
+#2961918 by thejimbirch, Michelle: Add the site.webmanifest meta tag.
+#2895577 by plopesc, drupallogic: Error loading
+  /admin/config/search/metatag?page=1.
+#2943954 by thejimbirch, DamienMcKenna: Document an approach to simplify
+  overriding meta tags on a per-entity basis.
+#2968902 by DamienMcKenna, Berdir: Default user page title token should use
+  [user:display-name].
+#2977197 by justin., DamienMcKenna: Allow modules to override the entity used
+  for token replacements.
+#2691313 by KarenS, carstenG, DamienMcKenna, Michelle, marysmech: New option to
+  control which meta tag groups are used on each form.
+#2563657 by plopesc, scotthooker, dawehner, ryanissamson, KevinVb, dobrzyns,
+  PieterDC, peter.keppert, piggito, DamienMcKenna, Grayle, kunal.kursija,
+  Citizen Dan, al0a, kaushashah, yohanaraujo07@gmail.com, markandrewsutton,
+  fuzzyjared, igalafate, PascoS, rybchynski: Panels / Page Manager
+  integration.
+#2989295 by JKerschner: Coding style improvements.
+#2987852 by Chris Burge: Allow meta tags to be altered before page attachment.
+#2989543 by JKerschner: Remove unused variables and imports.
+#2753595 by sinn, thejimbirch: W3C validation error on xmlns attribute.
+#2988072 by juanolalla: Allow contex entity to be overriden in alter hook.
+#2628934 by nikunjkotecha, smaz, e.escribano, idebr, DamienMcKenna,
+  ZapevalovAnton, caspervoogt: Full support for meta tags that allow multiple
+  values.
+#2987904 by thejimbirch: Remove groups redundantly stored in the main module.
+#2987107 by ziomizar: Add support for bubbeable metadata in the MetatagToken
+  service.
+#2978106 by Rolf van de Krol: Translated metatags not showing in normalized
+  entity representations (i.e. REST).
+#2799861 by kalpaitch, DamienMcKenna, dmitry.yankouski, ckaotik: Canonical links
+  repeated when using Panels pages.
+#2532596 by alzz, DamienMcKenna, thejimbirch: Add new meta tag: google.
+
+
+Metatag 8.x-1.5, 2018-03-29
+---------------------------
+#2932596 by yo30, Punk_UnDeaD: Wrong method in abstract class LinkSizesBase.
+#2933940 by DamienMcKenna: og:image must be at least 200x200 otherwise it is
+  ignored by Facebook.
+#2936371 by gaurav.kapoor: Unused variable in metatag defaults class revert
+  function.
+#2923080 by DamienMcKenna, pingwin4eg, pazhyn: Undefined offset: 1 in
+  metatag_mobile_page_attachments_alter.
+#2930037 by smurrayatwork, rbayliss, moshe weitzman: Missing ampersand with
+  drupal_static causes multiple calls to metatag_get_tags_from_route().
+#2899234 by DamienMcKenna, JeffM2001, twang, heddn, edurenye, ShaunDychko:
+  Missing dependency (drupal:serialization) / Fatal error: Class NormalizerBase
+  not found.
+#2945799 by DamienMcKenna, webfaqtory: Undefined variable: tag_id in
+  MetatagManager->sortedGroupsWithTags().
+#2953313 by DamienMcKenna: Add a function for getting the meta tags in a human
+  readable format - metatag_generate_entity_metatags().
+#2953635 by DamienMcKenna: MetatagStringTest has the wrong @group.
+#2937683 by prafullsranjan, DamienMcKenna: Further improve module's coding
+  standards compliance.
+#2939608 by alberto56: Invalid argument supplied for foreach() in
+  MetatagNormalizer.
+#2936876 by bonus, DamienMcKenna: Add support for Pinterest meta namespace.
+#2938025 by DamienMcKenna, Oliver Eyton-Williams: Incorrect rel attribute on
+  hreflang tags.
+#2954214 by DamienMcKenna: composer.json improvements.
+#2908119 by LEalex, DamienMcKenna, jeffam, BenStallings: Set "link" HTTP header
+  for canonical URL and shortlink tags.
+#2954169 by yasmeensalah, DamienMcKenna: Translations of description meta tags
+  shouldn't be limited to 128 characters.
+#2897450 by edurenye: Add product:price:amount and product:price:currency OG
+  tags.
+#2922581 by roborew: Metatag causes error when used with Replication Modules to
+  deploy content.
+#2947493 by DamienMcKenna, kala4ek: Adding forms of custom entities are broken.
+#2828607 by pingevt, DamienMcKenna: Add OG book meta tags.
+#2954522 by DamienMcKenna: Correct spelling of "meta tags".
+#2809351 by DamienMcKenna, thejimbirch: Add the advanced Dublin Core meta tags.
+#2956199 by DamienMcKenna: Remove separate admin pages for Views integration.
+#2956227 by DamienMcKenna: Test improvements from 2883718-20.
+#2900368 by plopesc: Don't allow certain defaults to be removed.
+#2840751 by ocastle, ElegguaDP, Wim Leers, keopx, adamzimmermann:
+  Protocol-relative URLs are broken.
+#2925974 by keopx, ocastle, DamienMcKenna, Wim Leers, mangy.fox: Twitter Cards
+  (and others) require absolute URLs.
+
+
+Metatag 8.x-1.4, 2017-12-21
+---------------------------
+#2882769 by DamienMcKenna: Added a hook_requirements() message about the
+  Schema.org Metatag module.
+#2864079 by DamienMcKenna: Resolve coding standards violations.
+#2928394 by DamienMcKenna, mattlt: Error: Trait metatag_views\
+  MetatagViewsValuesCleanerTrait not found.
+#2932110 by thejimbirch: Update Description's meta description to 320 chars
+  (for 2018).
+#2932285 by DamienMcKenna, Sophie.SK: After updating Redirect to 1.0, config
+  import fails: route does not exist.
+#2932316 by DamienMcKenna, Sophie.SK: Error on main defaults page if no config
+  objects exist.
+#2932361 by DamienMcKenna: Improve coding standards on Metatag 8.x-1.x.
+#2930001 by Aurif3x, DamienMcKenna: New meta tag: Set-Cookie.
+#2810635 by DamienMcKenna: Automatically add hreflang meta tags for each enabled
+  language.
+
+
+Metatag 8.x-1.3, 2017-09-29
+---------------------------
+#2898975 by DamienMcKenna: Correct restui entry in composer.json.
+#2899045 by DamienMcKenna: Fixed problems in MetatagNodeTranslationTest.
+#2899234 by DamienMcKenna: Expand Devel/WebProfiler tests to make sure they work
+  when a content type and node are present.
+#2898805 by DamienMcKenna: Small improvements to the test suite, working
+  towards fixing the 8.4.x support.
+#2898805 by DamienMcKenna: Fixes to MetatagNodeTranslationTest to make it work
+  with 8.4.x.
+By DamienMcKenna: Reenable \Drupal\metatag\Tests\MetatagFrontpageTest::
+  testFrontPageMetatagsEnabledConfig().
+#2905925 by DamienMcKenna: The Normalizer shouldn't assume all meta tags have a
+  'content' attribute; also support the 'href' attribute.
+#2906312 by DamienMcKenna: Added the twitter:dnt meta tag.
+#2909390/2894868 by Perignon, StijnStroobants: Small typo in MetatagToken.
+#2903661 by DamienMcKenna: Don't output 403/404 page node's meta tags on
+  403/404 pages.
+#2905769 by DamienMcKenna: Improved defaults for the canonical URL meta tag.
+#2899752 by DamienMcKenna, huzooka, deepak_zyxware, samuel.mortenson, wanjee,
+  giangi.vigazzola: Creating a new field bundle inside
+  hook_entity_base_field_info_alter() is a bad idea and causes problems.
+#2906180 by John Lawter: Incorrect Wikipedia link for Advanced > Geographical
+  position.
+#2859111 by acbramley, DamienMcKenna: Remove the second canonical tag on
+  taxonomy term pages because of a bug in core.
+By DamienMcKenna: Changed codebase to only use short array syntax, fixed some
+  comments.
+#2911435 by DamienMcKenna, AdamPS: Streamline the HTML output logic.
+#2860088 by AdamPS, DamienMcKenna: Comma separated list in og:image breaks if
+  one component is empty.
+#2905769 by DamienMcKenna: Added tests for how default meta tags are displayed.
+#2872382 by Vlad_Bo, DamienMcKenna: Error if there is no node object (custom
+  node view implementation).
+#2217549 by Alan D., Kuldeep K, DamienMcKenna: Integration with the Diff module.
+
+
+Metatag 8.x-1.2, 2017-07-31
+---------------------------
+#2882954 by DamienMcKenna: Added Devel as a test dependency.
+#2882954, #2877737 by DamienMcKenna, René-Marc Simard, a.henry: Fixed
+  compatibility with WebProfiler, added tests to ensure site still works when it
+  or Devel is enabled.
+#2878158 by DamienMcKenna: Listed Context Metadata as a related module.
+#2894566 by StijnStroobants: Make all routes start with a leading slash.
+By DamienMcKenna: Use ComposerCat to update composer.json.
+By DamienMcKenna: Don't list Drupal core as a dependency in composer.json.
+#2636852 by hanoii, DamienMcKenna, Grayside, pcho, skorzh, fjgarlin, vincic:
+  Make Metatag fields available as JSON.
+#2893448 by Sam152: Add correct meta tags to latest-version route to support
+  content moderation.
+
+
+Metatag 8.x-1.1, 2017-05-31
+---------------------------
+#2852737 by DamienMcKenna: Added CodeClimate config files.
+#2853252 by dawehner: Ensure the meta tags are ordered correctly.
+#2856454 by dbungard: Improvements to UI text, meta tag descriptions, etc.
+#2781485 by kalpaitch: Changed MetatagManager to use the instance name rather
+  than plugin ID to identify plugin instances.
+By DamienMcKenna: Ensure all drupalPostForm() calls are preceeded by a
+  drupalGet() call, and that all drupalGet() calls have an assertResponse().
+#2858057 by nicrodgers: Wrong default values are displayed in the node form when
+  adding a translation.
+#2855445 by rocket.man: Replace deprecated functions (database functions,
+  format_string()).
+#2851582 by mtodor: Filled out missing attributes on the default configuration.
+#2862277 by DamienMcKenna: Fixed filename of the MsapplicationStartUrl plugin.
+#2864524 by JamesK: Improve field description for the abstract meta tag.
+#2848353 by DamienMcKenna, grisendo: Only output one shortlink tag; extended tag
+  tests to cover an example entity.
+#2706941 by ckaotik, monika.de, DamienMcKenna, mariancalinro, adinac: Allow
+  translations to be longer than 128 characters for tags which use textarea
+  fields.
+#2868750 by DamienMcKenna: List Metatag Cxense as a related module.
+#2563633 by ziomizar, DamienMcKenna, ruloweb: Add all of the Favicon meta tags.
+#2853515 by ohthehugemanatee: Add default handling to metatag manager.
+#2857544 by fjgarlin: Default values not returned on REST default routes.
+#2636852 by Greyside: MetatagToken::replace() options array shouldn't assume the
+  'clear' attribute is always needed.
+By DamienMcKenna: Allow MetatagJsonOutputTest to run.
+#2563633 by ziomizar: Misc fixes for the Favicon meta tags.
+#2563647 by delta, tom_ek, DamienMcKenna, monika.de, ckaotik, martins.bertins,
+  cgmonroe, danquah, blazey, paulmckibben, stijn.blomme, danquah, Alex Bukah,
+  guarav.goyal, kducharm: Views integration.
+#2882769 by DamienMcKenna: List Schema Metatag as a related module.
+#2856416 by DamienMcKenna: List Metatag Google Scholar as a related module.
+#2848543 by DamienMcKenna: Add missing people to README.txt.
+
+
+Metatag 8.x-1.0, 2017-01-31
+---------------------------
+#2841139 by jmolivas: Relocated commands services registration to
+  console.services.yml file.
+#2844429 by DamienMcKenna: There's only one hreflang meta tag so far and it does
+  not yet support custom tokens like the D7 version does.
+#2844504 by DamienMcKenna: Add project names to all dependencies.
+#2563631 by DamienMcKenna: Added all AppLinks meta tags.
+#2841737 by DamienMcKenna: Renamed the DrupalConsole commands.
+#2838175 by dawehner: Allow supported entity routes to be changed through the
+  new hook_metatag_route_entity().
+#2825867 by Grayside: Improve support for the Typed Data API.
+#2649592 by ziomizar, DamienMcKenna: Write tests to cover apostrophe handling.
+By DamienMcKenna: Shortened some verbose variable syntax.
+#2835752 by DamienMcKenna: Improved hook_help().
+#2789511 by DamienMcKenna: It is a known issue that all Metatag fields must be
+  removed prior to uninstalling the module.
+#2809915 by nicxvan, DamienMcKenna: Document how to programmatically assign
+  meta tags when creating entities.
+#2563645 by DamienMcKenna, Michelle: Improved documentation.
+
+
+Metatag 8.x-1.0-beta12, 2017-01-03
+----------------------------------
+#2823811 by Michelle: metatag_open_graph_preprocess_html() was misspelled.
+#2654148 by penyaskito, DamienMcKenna: Not all entity.*.add paths are tied to a
+  specific entity form, so don't assume they are; this fixes compatibility with
+  the Lingotek module, possibly others.
+By DamienMcKenna: Fixed a typo in README.txt.
+#2824442 by jiff: image_src should be a 'link' tag.
+#2821476 by DamienMcKenna, Daniel_Rose: Added tests to confirm entity defaults
+  inherit properly.
+#2836124 by DamienMcKenna: Fixed tests for the Dublin Core meta tags.
+#2786625 by DamienMcKenna: Added the hreflang=x-default meta tag.
+#2532588 by DamienMcKenna, renatog, cebasqueira: Added the Google CSE meta tags.
+#2563631 by DamienMcKenna: Added a placeholder to store the AppLinks meta tags.
+#2809351 by DamienMcKenna: Added a placeholder to store the DC Advanced meta
+  tags.
+#2835925 by DamienMcKenna: Added a placeholder to store the OG Products meta
+  tags.
+#2563633 by DamienMcKenna: Added a placeholder to store the favicon meta tags.
+#2532588 by DamienMcKenna: Follow-up to fix the group assignment of the Google
+  CSE meta tags.
+#2786625 by DamienMcKenna: Follow-up to fix the group assignment of the hreflang
+  x-default meta tag.
+#2563635 by jlbellido, DamienMcKenna: Ported all of the mobile meta tags to the
+  new Metatag Mobile submodule.
+#2840222 by jmolivas: Update for Drupal Console rc13 namespace changes.
+
+
+Metatag 8.x-1.0-beta11, 2016-10-31
+----------------------------------
+#2786795 by agoradesign, heddn: Temporarily disable the DrupalConsole
+  integration.
+#2709985 by DamienMcKenna: Moved the two FB meta tags into a new submodule,
+  Metatag Facebook, added the fb_pages meta tag.
+#2709985 by DamienMcKenna: Fixed the fb:pages meta tag description.
+By DamienMcKenna: Updated the description of content-language to clarify its
+  usage and the fact that Bing may still use it.
+#1865228 by DamienMcKenna: Moved the Author meta tag into the GoolgePlus
+  submodule.
+#2797069 by Internet, DamienMcKenna: Corrected the URL to Wikipedia's ICBM page.
+#2801023 by trobey: Provide namespaces in dependencies to avoid ambiguity.
+#2563627 by gaurav.goyal, DamienMcKenna, cilefen: Added all of the basic Dublin
+  Core meta tags.
+#2795983 by dbungard: Improved help message on the main configuration page.
+#2786795 by -enzo-: Fixed Drupal Console integration; now requires rc1.
+#2663974 by dawehmer, DamienMcKenna: Added the og:video meta tags.
+#2819549 by chr.fritsch: Fixed entity API changes in metatag_update_8103.
+#2817309 by chr.fritsch, DamienMcKenna: Fixed default value handling for all
+  entity forms. Greatly extended the entity field tests for nodes, terms, users
+  and the entity_test entity.
+#2654148 by bmcclure, DamienMcKenna, miiimooo, JeroenT, agoradesign: Improved
+  support for all entities, exclude certain core entity types, only support
+  ContentEntityType entities that have 'links' defined.
+#2816553 by andyrigby: Renamed article:tags to be article:tag.
+#2796701 by jiff, DamienMcKenna: Added tests to cover XSS via meta tag values.
+#2796701 by DamienMcKenna: Added tests to cover XSS on the page title and entity
+  values.
+
+
+Metatag 8.x-1.0-beta10, 2016-08-22
+----------------------------------
+#2747793 by rajeshwari10, cilefen, DamienMcKenna: Removed the @file docblocks.
+#2764163 by chrisfree, markdorison: Allow the 'referrer' meta tag to not have a
+  value selected.
+#2762981 by felribeiro, DamienMcKenna: Changed codebase to only use short array
+  syntax.
+#2753595 by sylus: Moved the extra XML namespaces to the OpenGraph module.
+#2765137 by balsama: Don't display the installation message during site install,
+  it looks funny.
+#2759843 by DamienMcKenna: Removed the Alexa verification tag.
+#2759855 by DamienMcKenna: Removed the Yahoo verification tag.
+#2759917 by Nikhilesh Gupta, cilefen: Remove unused imports / 'use' statements.
+#2759927 by Nikhilesh Gupta: Replace deprecated \Drupal::entityManager()
+  with \Drupal::entityTypeManager().
+#2759919 by Nikhilesh Gupta: Replace deprecated entity->urlInfo() with
+  entity->toUrl().
+#2755225 by jlbellido: Corrected the 'type' tag generator definition in
+  tag.php.twig.
+#2759931 by Nikhilesh Gupta: Replace deprecated ConfigEntityListBuilder::
+  getLabel() with entity->label().
+#2761231 by ashwin.shaharkar: Minor fix to image tag form selection logic.
+#2745177 by DamienMcKenna, cilefen: Added tests for each submodule to ensure
+  they can be enabled and that each meta tag can be used.
+#2750705 by susannecoates, jalpesh: Updated description of the Google Play app
+  ID meta tag.
+#2752239 by Saphyel, sylus, DamienMcKenna: Temporary fix for DrupalConsole
+  integration.
+#2775245 by DamienMcKenna: Fix tests.
+#2776407 by cilefen: Module names must be wrapped in quotes if they contain
+  certain characters.
+By DamienMcKenna: Renamed the custom routes module.
+#2745173 by jibellido: Tag generator now appends metatag_tag.schema.yml.
+#2673902 by DamienMcKenna: Confirm that forum posts can be loaded when the
+  module is enabled and outputting meta tags.
+#2707791 by ashwin.shaharkar, DamienMcKenna, Shreya Shetty, MattDanger: Changed
+  the Description and Abstract meta tags to use a textarea, matching the D7
+  branch.
+#2780025 by DamienMcKenna: Basic tests for the output of every meta tag. Fixes
+  the output of all Google Plus tags. Fixed the test route module.
+#2746031 by jalpesh, cilefen, DamienMcKenna, susannecoates: Fixed output of all
+  Twitter Cards meta tags.
+#2780109 by DamienMcKenna: Always run drupalGet() before drupalPostForm() to
+  ensure the form loads correctly.
+#2748615 by yannickoo, DamienMcKenna, agentrickard, SteffenR, paulmckibben: Try
+  generating an empty entity on entity-add (e.g. node/add/*) so default values
+  can be filled in.
+#2775441 by tom_ek, DamienMcKenna: Replace deprecated core entity APIs with the
+  newer ones.
+#2762981 by DamienMcKenna: More codebase changes to only use short array syntax.
+#2774807 by DamienMcKenna, Berdir, hussainweb: Token browser showed items that
+  were irrelevant, and didn't show the correct entities on default config forms.
+#2748615 by yannickoo, DamienMcKenna, SteffenR: The default configurations were
+  not loading properly in entity form fields.
+#2752239 by DamienMcKenna: Fixes to Drupal:Console integration.
+#1865228 by DamienMcKenna, greggles: Added the Author meta tag.
+#2493711 by DamienMcKenna: Added the geographical meta tags.
+#1343914 by DamienMcKenna, Dave Reid: Added the (Google+) Publisher meta tag.
+By DamienMcKenna: Corrected the changelog comment for #2759927.
+
+
+Metatag 8.x-1.0-beta9, 2016-06-02
+---------------------------------
+#2725895 by DamienMcKenna: Fixed the name of the Validation submodule to avoid
+  YAML validation errors. Yes, somewhat ironic.
+#2725989 by dbt102, DamienMcKenna, neerusrijan: Improve hook_help().
+
+
+Metatag 8.x-1.0-beta8, 2016-05-14
+---------------------------------
+#2723319 by itmaybejj: Fixed misspelling of 'its'.
+#2619450 by paulmckibben: Remove core's Canonical URL tag if Metatag is adding
+  one.
+#2712277 by markdorison: Twitter Card Type meta tag wasn't updating.
+#2650408 by Raphael Apard, DamienMcKenna, gaurav.goyal, dpacassi, kyberman:
+  A node's meta tags should not override the front page defaults unless the
+  defaults are disabled/deleted.
+#2684479 by mikeyk, DamienMcKenna, aspilicious: Added 'secure' option as some
+  meta tags require HTTPS URLs.
+#2699297 by DamienMcKenna: Added tests to ensure submodules can be enabled.
+#2663974 by IT-Cru, DamienMcKenna: Added the og 'article' meta tags.
+#2650848 by ivanjaros, DamienMcKenna: Only show appropriate entities in the
+  token browser.
+#2705851 by vasi: Load field definitions, not field values, when getting a list
+  of Metatag fields on an entity.
+#2708511 by DamienMcKenna: Added the referrer meta tag.
+#2563629 by Jim.M, DamienMcKenna: Added site verification tags.
+#2721857 by marvin_B8, DamienMcKenna: Added Google+ meta tags.
+
+
+Metatag 8.x-1.0-beta7, 2016-04-03
+---------------------------------
+#2699173 by DamienMcKenna: Fixed OgUpdatedTime annotations.
+
+
+Metatag 8.x-1.0-beta6, 2016-04-02
+---------------------------------
+#2689543 by kplanz: Fixed paths in image meta tags when the site is in a
+  subdirectory.
+By DamienMcKenna: Added a CODE_OF_CONDUCT.txt file that references the Drupal
+  code of conduct page.
+#2690973 by DamienMcKenna: Added schema.yml values for all meta tags to make
+  them more easily translatable.
+#2688963 by DamienMcKenna: Added a note about the Yoast SEO module.
+#2696445 by DuaelFr, Simon Georges, DamienMcKenna: Added the twitter:image:alt
+  meta tag.
+#2692117 by penyaskito, DamienMcKenna: Replaced the 'image' attribute with a
+  general 'type' attribute.
+
+
+Metatag 8.x-1.0-beta5, 2016-03-11
+---------------------------------
+#2563623/2674732/2675208 by DamienMcKenna, esclapes, NickWilde, achton: Quote
+  submodule strings to avoid YAML compatibility problems.
+#2658242 by mr.baileys: Default meta tags were not translated into the entity's
+  language.
+By DamienMcKenna: Added mr.baileys to the D8 contributors list :)
+#2664276 by DamienMcKenna, StevenPatz, rajeev_drupal: Wrong default base class
+  for generated tag plugins.
+#2665790 by benjy, Sam152: Use StringTranslationTrait in MetaNameBase.
+#2666384 by mr.baileys, Rudrasis, danisha: Added 'configure' link to the module
+  on the Extend page.
+#2563625 by mr.baileys, juliencarnot: All Twitter Cards have been ported.
+#2674078 by Raphael Apard: The Generator meta tag is a META tag, not a LINK tag.
+#2664448 by mr.baileys: DrupalConsole generator for meta tag groups.
+#2663650 by mr.baileys: Caught another small bug in the tag generator.
+#2672892 by borisson_: Replaced usage of LoggerChannelFactory with
+  LoggerChannelFactoryInterface.
+#2678196 by mr.baileys: Simplified usage of isAdminRoute().
+#2631408 by mikeyk, juampynr, DamienMcKenna: Filter out HTML from meta tags and
+  improve image meta tag handling.
+#2631826 by juampynr, DamienMcKenna, pguillard: Require the Token module.
+#2667850 by mikeyk: Token method was not renamed properly.
+By DamienMcKenna: Fixed group name on MetatagTranslationTest.
+#2684495 by mikeyk, DamienMcKenna: Fixed bug in translations that was causing
+  the tests to fail. Also tidied up the tests a little.
+#2685355 by mikeyk: Fix image identification.
+
+
+Metatag 8.x-1.0-beta4, 2016-02-06
+---------------------------------
+#2634844 by swentel: Only load entity meta tags on actual content entity pages.
+#2648752 by juampynr: Fixed the token browser integration.
+#2642430 by juampynr: Moved settings pages under admin/config.
+#2646706 by heykarthikwithu: Removed unused 'use' statements.
+#2645338 by Dane Powell: Fixed variable assumptions in MetatagFirehose.
+#2643370 by flocondetoile: Fixed hook_block().
+#2631408 by juampynr: Filter HTML from the meta tag output.
+#2653512 by DamienMcKenna, ivanjaros: Missing ampersand in drupal_static call.
+#2630068 by jaxxed, DamienMcKenna: Moved the meta tags fields into the
+  'advanced' section of the entity form.
+#2657142 by TravisCarden: Incorrect path in MetatagDefaults annotations.
+#2656494 by DamienMcKenna, webflo, cyb.tachyon, alexdmccabe: Added translation
+  support for the default configs.
+#2634844 by mr.baileys: Ensure that the entity system doesn't break entity
+  pages that don't have meta tags enabled.
+#2659854 by mr.baileys: The config inheritance info was displayed when not
+  needed and was not translatable.
+#2624422 by mr.baileys: Added tests to confirm meta tag handling is loaded
+  correctly when there is no default value available.
+#2658902 by swentel, DamienMcKenna: Renamed 'Add Metatag defaults' to something
+  more easily understood.
+#2636348 by DamienMcKenna: Config entity not working correctly after updating
+  from beta2.
+By DamienMcKenna: Note in the README.txt that Token is now required.
+#2663874 by mr.baileys: Fixed arguments to annotation translations for two
+  Google meta tags.
+#2663650 by DamienMcKenna: Updated/fixed the DrupalConsole integration.
+#2663650 by mr.baileys: Further fixes to the DrupalConsole integration.
+#2563623 by DamienMcKenna: Moved OG tags to new submodule, added several more.
+
+
+Metatag 8.x-1.0-beta3, 2015-12-08
+---------------------------------
+#2613654 by Michelle, DamienMcKenna: Automatically parse fields for images.
+#2563639 by juampynr, DamienMcKenna: Global configurations system.
+
+
+Metatag 8.x-1.0-beta2, 2015-11-23
+---------------------------------
+#2572469 by Berdir, platinum1, rakesh.gectcr, DamienMcKenna: Fixed the
+  composer.json file.
+
+
+Metatag 8.x-1.0-beta1, 2015-11-19
+---------------------------------
+Initial port by Damien McKenna and Michelle Cox.
+#2563663 by kikoalonsob: Don't convert the title to a string.
+#2563621 by jmolivas: Fixed DrupalConsole integration.
+#2579865 by afi13: Fixed definition of MetatagEmptyFormatter::viewElements().
+#2563667 by vincic: MetatagManager should only be used for objects implementing
+  ContentEntityInterface.
+#2569043 by Michelle: Field defaults weren't loading (core API change).
+#2579295 by Michelle: Fixed the field cardinality limitation.
+#2563667 by Michelle: Follow-up to add missing namespace.
+#2584835 by DamienMcKenna: Fixed double-HTML encoding of the page title.
+#2563637 by larowlan: Added some initial tests for the field type.
+#2596753 by Michelle: Don't encode apostrophes in the page title.
+#2576695 by Andrej Galuf, larowlan, DamienMcKenna: Double slashes in URLs were
+  being replaced.
+#2603548 by DuaelFr: Clear our the head_title array to avoid the site name being
+  added a second time.
+#2617192 by larowlan: Fixed tests due to a core API change.
+#2609138 by rakesh.gectcr: Removed unnecessary 'use' statements.
+#2593149 by larowlan: Inject dependencies into MetatagManager.
+#2593153 by larowlan: Inject dependencies into MetatagToken.
+#2593141 by larowlan: Add a MetatagManagerInterface to avoid type-hinting
+  concrete implementation.
+#2581351 by Michelle, larowlan, DamienMcKenna: Don't save default values to the
+  field, allow them to inherit from the default field settings.
+By DamienMcKenna: Updates to the README.txt file.
+#2572469 by rakesh.gectcr, DamienMcKenna, jaxxed, timmillwood: Added a
+  composer.json file.
+By DamienMcKenna: Added a LICENSE.txt to enforce the license on git mirrors.

sites/all/modules/contrib/admin/metatag/CODE_OF_CONDUCT.txt

@@ -0,0 +1,3 @@
+Contributor Code of Conduct
+---------------------------
+See: https://www.drupal.org/dcoc

sites/all/modules/contrib/admin/metatag/LICENSE.txt

@@ -0,0 +1,339 @@
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+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

sites/all/modules/contrib/admin/metatag/README.txt

@@ -0,0 +1,331 @@
+Metatag
+-------
+This module allows a site's builder to automatically provide structured
+metadata, aka "meta tags", about the site and individual pages.
+
+In the context of search engine optimization, providing an extensive set of
+meta tags may help improve the site's and pages' rankings, thus may aid with
+achieving a more prominent display of the content within search engine results.
+They can also be used to tailor how content is displayed when shared on social
+networks.
+
+For additional information, see the online documentation:
+  https://www.drupal.org/docs/8/modules/metatag
+
+This version should work with all Drupal 8 releases, though it is always
+recommended to keep Drupal core installations up to date.
+
+
+Requirements
+--------------------------------------------------------------------------------
+Metatag for Drupal 8 requires the following:
+
+* Token
+  https://www.drupal.org/project/token
+  Provides a popup browser to see the available tokens for use in meta tag
+  fields.
+
+
+Features
+--------------------------------------------------------------------------------
+The primary features include:
+
+* An administration interface to manage default meta tags.
+
+* Use of standard fields for entity support, allowing for translation and
+  revisioning of meta tag values added for individual entities.
+
+* A large volume of meta tags available, covering commonly used tags, Open
+  Graph tags, Twitter Cards tags, Dublin Core tags, Google+ tags, App Links
+  tags, site verification tags and more; all but the basic meta tags are kept
+  in separate submodules.
+
+* The fifteen Dublin Core Basic Element Set 1.1 meta tags may be added by
+  enabling the "Metatag: Dublin Core" submodule.
+
+* Forty additional Dublin Core meta tags may be added by enabling the "Metatag:
+  Dublin Core Advanced" submodule.
+
+* The Open Graph Protocol meta tags, as used by Facebook, Pinterest, LinkedIn
+  and other sites, may be added by enabling the "Metatag: Open Graph" submodule.
+
+* The Twitter Cards meta tags may be added by enabling the "Metatag: Twitter
+  Cards" submodule.
+
+* Certain meta tags used by Google+ may be added by enabling the "Metatag:
+  Google+" submodule.
+
+* Facebook's fb:app_id, fb:admins and fb:pages meta tags may be added by
+  enabling the "Metatag: Facebook" submodule. These are useful for sites which
+  are using Facebook widgets or are building custom integration with Facebook's
+  APIs, but they are not needed by most sites and have no bearing on the
+  Open Graph meta tags.
+
+* The Pinterest meta tags may be added by enabling the "Metatag: Pinterest" 
+  submodule.
+
+* Site verification meta tags can be added, e.g. as used by the Google search
+  engine to confirm ownership of the site; see the "Metatag: Verification"
+  submodule.
+
+* The Metatag: Mobile & UI Adjustments submodule adds the MobileOptimized,
+  HandheldFriendly, viewport, cleartype, theme-color, format-detection,
+  apple-mobile-web-app-capable, apple-mobile-web-app-status-bar-style, the
+  android-app and ios-app alternative link meta tags, and the Android manifest
+  tag.
+
+* The hreflang meta tags are available via the Metatag:hreflang submodule.
+
+* The App Links meta tags may be added by enabling the Metatag: App Links
+  submodule.
+
+* Support for meta tags specific to Google Custom Search Appliance are available
+  in the "Metatag: Google Custom Search Engine (CSE)" submodule.
+
+* Meta tags specific to Facebook are included in the "Metatag: Facebook"
+  submodule.
+
+* A plugin interface allowing for additional meta tags to be easily added via
+  custom modules.
+
+* Integration with DrupalConsole [1] to provide a quick method of generating new
+  meta tags.
+
+
+Standard usage scenario
+--------------------------------------------------------------------------------
+1. Install the module.
+2. Open admin/config/search/metatag.
+3. Adjust global and entity defaults. Fill in reasonable default values for any
+   of the meta tags that need to be customized. Tokens may be used to
+   automatically assign values.
+4. Additional bundle defaults may be added by clicking on "Add metatag
+   defaults" and filling out the form.
+5. To adjust meta tags for a specific entity, the Metatag field must be added
+   first. Follow these steps:
+
+   5.1 Go to the "Manage fields" of the bundle where the Metatag field is to
+       appear.
+   5.2 Select "Meta tags" from the "Add a new field" selector.
+   5.3 Fill in a label for the field, e.g. "Meta tags", and set an appropriate
+       machine name, e.g. "meta_tags".
+   5.4 Click the "Save and continue" button.
+   5.5 If the site supports multiple languages, and translations have been
+       enabled for this entity, select "Users may translate this field" to use
+       Drupal's translation system.
+
+
+Simplify the content administration experience
+--------------------------------------------------------------------------------
+This module and its submodules gives a site's content team the ability to add
+every meta tag ever. The standard meta tag form added by the Metatag field on
+content entities can be overwhelming to content creators and editors who just
+need to manage a few options.
+
+The easiest way of simplifying this for content teams is to add new fields to
+the content type for the meta data fields that are needed and skip adding the
+Metatag field entirely, then use tokens for those fields in the defaults
+(/admin/config/search/metatag). These fields can be used in the entity's
+display, or just left hidden.
+
+
+Alternative option to simplify the content administration experience
+--------------------------------------------------------------------------------
+On the settings page (/admin/config/search/metatag/settings) are options to
+control which meta tag groups are available for each entity bundle. This allows
+e.g. the Favicon meta tags to be available for global configurations but to hide
+them on entity forms.
+
+
+Programmatically assign meta tags to an entity
+--------------------------------------------------------------------------------
+There are two ways to assign an entity's meta tags in custom module. Both
+scenarios require a "Metatag" field be added to the entity's field settings, the
+field name "field_meta_tags" is used but this is completely arbitrary.
+
+Option 1:
+
+  $entity_type = 'node';
+  $values = [
+    'nid' => NULL,
+    'type' => 'article',
+    'title' => 'Testing metatag creation',
+    'uid' => 1,
+    'status' => TRUE,
+    'field_meta_tags' => serialize([
+      'title' => 'Some title',
+      'description' => 'Some description.',
+      'keywords' => 'Some,Keywords',
+    ]),
+  ];
+  $node = \Drupal::entityTypeManager()
+    ->getStorage($entity_type)
+    ->create($values);
+  $node->save();
+
+Option 2:
+
+  $node = Node::create([
+    'type' => article,
+    'langcode' => 'en',
+    'status' => 1,
+    'uid' => 1,
+  ]);
+  $node->set('title', 'Testing metatag creation');
+  $node->set('field_meta_tags', serialize([
+    'title' => 'Some title',
+    'description' => 'Some description.',
+    'keywords' => 'Some,Keywords',
+  ]));
+  $node->save();
+
+In both examples, the custom meta tag values will still be merged with the
+values defined via the global defaults prior to being output - it is not
+necessary to copy each value to the new record.
+
+
+Obtain meta tags for an entity
+--------------------------------------------------------------------------------
+For developers needing to access the rendered meta tags for a given entity, a
+function is provided to make this easy to do:
+
+  $metatags = metatag_generate_entity_metatags($entity);
+
+This will return an array with the following structure:
+
+  [
+    'title' => [
+      '#tag' => 'meta',
+      '#attributes' => [
+        'name' => 'title',
+        'content' => 'The What | D8.4',
+      ],
+    ],
+    'canonical_url' => [
+      '#tag' => 'link',
+      '#attributes' => [
+        'rel' => 'canonical',
+        'href' => 'http://example.com/what',
+      ],
+    ],
+    'description' => [
+      '#tag' => 'meta',
+      '#attributes' => [
+        'name' => 'description',
+        'content' => 'I can't even.',
+      ],
+    ],
+    'generator' => [
+      '#tag' => 'meta',
+      '#attributes' => [
+        'name' => 'generator',
+        'content' => 'Drupal 8!',
+      ],
+    ],
+  ]
+
+The meta tags are keyed off the meta tag plugin's ID, e.g. "generator". Each
+meta tag is then provided as arguments suitable for use in a render array with
+the type "html_tag". Extracting the value of the meta tag will depend upon the
+type of meta tag, e.g. the generator meta tag uses the "content" attribute while
+the link tag uses the "href" attribute.
+
+
+DrupalConsole integration
+--------------------------------------------------------------------------------
+Using the DrupalConsole, it is possible to generate new meta tags, either for
+use in new custom modules that require custom meta tags, or to create patches
+for extending Metatag's options.
+
+To generate a new tag, install DrupalConsole and then use the following command:
+
+  drupal generate:plugin:metatag:tag
+
+This will guide the site builder through the necessary steps to create a new
+meta tag plugin and add it to a module.
+
+There is also a command for generating meta tag groups:
+
+  drupal generate:plugin:metatag:group
+
+Again, this provides a guided process to create a new group.
+
+
+Related modules
+--------------------------------------------------------------------------------
+Some modules are available that extend Metatag with additional or complimentary
+functionality:
+
+* Schema.org Metatag
+  https://www.drupal.org/project/schema_metatag
+  Extensive solution for adding schema.org / JSON-LD support to Metatag.
+
+* Context Metadata
+  https://www.drupal.org/project/context_metadata
+  Allow assignment of meta tags based upon different system contexts, e.g. per
+  path.
+
+* Real-time SEO for Drupal
+  https://www.drupal.org/project/yoast_seo
+  Uses the YoastSEO.js library and service (https://yoast.com/) to provide
+  realtime feedback on the meta tags.
+
+* Metatag Cxense
+  https://www.drupal.org/project/metatag_cxense
+  Adds support for the Cxense meta tags used by their DMP and Insight services.
+
+* Metatag Google Scholar
+  https://www.drupal.org/project/metatag_google_scholar
+  Adds support for a number of meta tags used with the Google Scholar system.
+
+
+Known issues
+--------------------------------------------------------------------------------
+* In order to uninstall the module any "Metatag" fields must first be removed
+  from all entities. In order to see whether there are fields blocking the
+  module from being uninstalled, load the module uninstall page
+  (admin/modules/uninstall) and see if any are listed, it will look something
+  like the following:
+    The Meta tags field type is used in the following field:
+    node.field_meta_tags
+  In order to uninstall the module, go to the appropriate field settings pages
+  and remove the Metatag field listed in the message. Once this is done it will
+  be possible to uninstall the module.
+
+
+Credits / contact
+--------------------------------------------------------------------------------
+Currently maintained by Damien McKenna [2] and Dave Reid [3]. Drupal 7 module
+originally written by Dave Reid. Early work on Drupal 8 port by Damien McKenna
+and Michelle Cox [4], and sponsored by Mediacurrent [5]; key improvements by
+Juampy Novillo Requena [6] with insights from Dave Reid and sponsorship by
+Lullabot [7] and Acquia [8]. Additional contributions to the 8.x-1.0 release
+from cilefen [9], Daniel Wehner [10], Jesus Manuel Olivas [11], Lee Rowlands
+[12], Michael Kandelaars [13], Ivo Van Geertruyen [14], Nikhilesh Gupta B [15],
+Rakesh James [16], and many others.
+
+Ongoing development is sponsored by Mediacurrent.
+
+The best way to contact the authors is to submit an issue, be it a support
+request, a feature request or a bug report, in the project issue queue:
+  https://www.drupal.org/project/issues/metatag
+
+
+References
+--------------------------------------------------------------------------------
+1: https://www.drupal.org/project/console
+2: https://www.drupal.org/u/damienmckenna
+3: https://www.drupal.org/u/dave-reid
+4: https://www.drupal.org/u/michelle
+5: https://www.mediacurrent.com/
+6: https://www.drupal.org/u/juampynr
+7: https://www.lullabot.com/
+8: https://www.acquia.com/
+9: https://www.drupal.org/u/cilefen
+10: https://www.drupal.org/u/dawehner
+11: https://www.drupal.org/u/jmolivas
+12: https://www.drupal.org/u/larowlan
+13: https://www.drupal.org/u/mikeyk
+14: https://www.drupal.org/u/mr.baileys
+15: https://www.drupal.org/u/nikhilesh-gupta
+16: https://www.drupal.org/u/rakeshgectcr

sites/all/modules/contrib/admin/metatag/composer.json

@@ -0,0 +1,32 @@
+{
+  "name": "drupal/metatag",
+  "description": "Manage meta tags for all entities.",
+  "type": "drupal-module",
+  "license": "GPL-2.0+",
+  "keywords": [
+    "Drupal",
+    "seo"
+  ],
+  "homepage": "https://www.drupal.org/project/metatag",
+  "authors": [
+    {
+      "name": "See contributors",
+      "homepage": "https://www.drupal.org/node/640498/committers",
+      "role": "Developer"
+    }
+  ],
+  "support": {
+    "issues": "http://drupal.org/project/issues/metatag",
+    "source": "http://cgit.drupalcode.org/metatag"
+  },
+  "require": {
+    "drupal/token": "^1.0"
+  },
+  "require-dev": {
+    "drupal/devel": "^1.0",
+    "drupal/redirect": "^1.0",
+    "drupal/restui": "^1.0",
+    "drupal/page_manager": "^4.0",
+    "drupal/schema_metatag": "^1.0"
+  }
+}

sites/all/modules/contrib/admin/metatag/config/install/metatag.metatag_defaults.403.yml

@@ -0,0 +1,8 @@
+langcode: en
+status: true
+dependencies: {  }
+id: '403'
+label: '403 access denied'
+tags:
+  canonical_url: '[site:url]'
+  shortlink: '[site:url]'

sites/all/modules/contrib/admin/metatag/config/install/metatag.metatag_defaults.404.yml

@@ -0,0 +1,8 @@
+langcode: en
+status: true
+dependencies: {  }
+id: '404'
+label: '404 page not found'
+tags:
+  canonical_url: '[site:url]'
+  shortlink: '[site:url]'

sites/all/modules/contrib/admin/metatag/config/install/metatag.metatag_defaults.front.yml

@@ -0,0 +1,8 @@
+langcode: en
+status: true
+dependencies: {  }
+id: front
+label: 'Front page'
+tags:
+  canonical_url: '[site:url]'
+  shortlink: '[site:url]'

sites/all/modules/contrib/admin/metatag/config/install/metatag.metatag_defaults.global.yml

@@ -0,0 +1,8 @@
+langcode: en
+status: true
+dependencies: {  }
+id: global
+label: Global
+tags:
+  canonical_url: '[current-page:url]'
+  title: '[current-page:title] | [site:name]'

sites/all/modules/contrib/admin/metatag/config/install/metatag.metatag_defaults.node.yml

@@ -0,0 +1,9 @@
+langcode: en
+status: true
+dependencies: {  }
+id: node
+label: Content
+tags:
+  title: '[node:title] | [site:name]'
+  description: '[node:summary]'
+  canonical_url: '[node:url]'

sites/all/modules/contrib/admin/metatag/config/install/metatag.metatag_defaults.taxonomy_term.yml

@@ -0,0 +1,9 @@
+langcode: en
+status: true
+dependencies: {  }
+id: taxonomy_term
+label: 'Taxonomy term'
+tags:
+  canonical_url: '[term:url]'
+  description: '[term:description]'
+  title: '[term:name] | [site:name]'

sites/all/modules/contrib/admin/metatag/config/install/metatag.metatag_defaults.user.yml

@@ -0,0 +1,9 @@
+langcode: en
+status: true
+dependencies: {  }
+id: user
+label: User
+tags:
+  canonical_url: '[user:url]'
+  description: '[site:name]'
+  title: '[user:display-name] | [site:name]'

sites/all/modules/contrib/admin/metatag/config/schema/metatag.metatag_defaults.schema.yml

@@ -0,0 +1,15 @@
+metatag.metatag_defaults.*:
+  type: config_entity
+  label: 'Metatag defaults'
+  mapping:
+    id:
+      type: string
+      label: 'ID'
+    label:
+      type: label
+      label: 'Type'
+    tags:
+      type: sequence
+      label: 'Tags'
+      sequence:
+        type: metatag.metatag_tag.[%key]

sites/all/modules/contrib/admin/metatag/config/schema/metatag.metatag_tag.schema.yml

@@ -0,0 +1,67 @@
+# The 'type' should be "label" for short meta tags and "text" for ones which
+# could get longer, especially ones which use a textarea field instead of a
+# textfield.
+
+metatag.metatag_tag.abstract:
+  type: text
+  label: 'Abstract'
+metatag.metatag_tag.canonical_url:
+  type: label
+  label: 'Canonical URL'
+metatag.metatag_tag.content_language:
+  type: label
+  label: 'Content Language'
+metatag.metatag_tag.description:
+  type: text
+  label: 'Description'
+metatag.metatag_tag.generator:
+  type: label
+  label: 'Generator'
+metatag.metatag_tag.image_src:
+  type: label
+  label: 'Image SRC'
+metatag.metatag_tag.keywords:
+  type: text
+  label: 'Keywords'
+metatag.metatag_tag.news_keywords:
+  type: label
+  label: 'Google News Keywords'
+metatag.metatag_tag.original_source:
+  type: label
+  label: 'Original source'
+metatag.metatag_tag.rights:
+  type: label
+  label: 'Rights'
+metatag.metatag_tag.referrer:
+  type: label
+  label: 'Referrer policy'
+metatag.metatag_tag.robots:
+  type: label
+  label: 'Robots'
+metatag.metatag_tag.shortlink:
+  type: label
+  label: 'Shortlink'
+metatag.metatag_tag.standout:
+  type: label
+  label: 'Standout'
+metatag.metatag_tag.title:
+  type: label
+  label: 'Page title'
+metatag.metatag_tag.icbm:
+  type: label
+  label: 'ICBM'
+metatag.metatag_tag.geo_region:
+  type: label
+  label: 'Geographical region'
+metatag.metatag_tag.geo_placename:
+  type: label
+  label: 'Geographical place name'
+metatag.metatag_tag.geo_position:
+  type: label
+  label: 'Geographical position'
+metatag.metatag_tag.set_cookie:
+  type: label
+  label: 'Set Cookie'
+metatag.metatag_tag.google:
+  type: label
+  label: 'Google'

sites/all/modules/contrib/admin/metatag/config/schema/metatag.schema.yml

@@ -0,0 +1,8 @@
+# Schema for metatag.
+field.value.metatag:
+  type: mapping
+  label: 'Default value'
+  mapping:
+    value:
+      type: string
+      label: 'Metatags'

sites/all/modules/contrib/admin/metatag/config/schema/metatag.settings.schema.yml

@@ -0,0 +1,7 @@
+metatag.settings:
+  type: mapping
+  label: 'Metatag settings'
+  mapping:
+    entity_type_groups:
+      type: mapping
+      label: 'Metatag groups that apply to each entity type'

sites/all/modules/contrib/admin/metatag/console.services.yml

@@ -0,0 +1,24 @@
+services:
+  metatag.generate_tag:
+    class: Drupal\metatag\Command\GenerateTagCommand
+    arguments: ['@metatag.manager', '@metatag.tag_generator', '@?console.extension_manager', '@?console.string_converter', '@?console.chain_queue']
+    tags:
+      - { name: drupal.command }
+
+  metatag.generate_group:
+    class: Drupal\metatag\Command\GenerateGroupCommand
+    arguments: ['@metatag.group_generator', '@?console.extension_manager', '@?console.chain_queue']
+    tags:
+      - { name: drupal.command }
+
+  metatag.tag_generator:
+    class: Drupal\metatag\Generator\MetatagTagGenerator
+    arguments: ['@?console.extension_manager', '@?console.renderer']
+    tags:
+      - { name: drupal.generator }
+
+  metatag.group_generator:
+    class: Drupal\metatag\Generator\MetatagGroupGenerator
+    arguments: ['@?console.extension_manager', '@?console.renderer']
+    tags:
+      - { name: drupal.generator }

sites/all/modules/contrib/admin/metatag/console/translations/en/generate.metatag.group.yml

@@ -0,0 +1,17 @@
+description: Generate a meta tag group.
+help: The <info>generate:plugin:metatag:group</info> command helps generate a new metatag group for use with the Metatag module.
+welcome: Welcome to the Metatag group generator
+options:
+  label: The user-friendly name for this meta tag group.
+  description: A long explanation of this meta tag group.
+  plugin_id: Internal (machine) name for the meta tag group.
+  class_name: Internal camel-case version of the meta tag group's name.
+  weight: The sort order for this meta tag group.
+questions:
+  base_class: Enter the base class to use
+  class_name: Enter the class name for the meta tag group class
+  module: common.questions.module
+  weight: Enter the sort order for the meta tag group
+  label: Enter the label for the meta tag group
+  description: Enter a longer explanation of what the meta tag group is and how to use it
+  plugin_id: Enter the internal (machine) name for the meta tag group plugin

sites/all/modules/contrib/admin/metatag/console/translations/en/generate.metatag.tag.yml

@@ -0,0 +1,31 @@
+description: Generate a meta tag.
+help: The <info>generate:plugin:metatag:tag</info> command helps generate a new meta tag for use with the Metatag module.
+welcome: Welcome to the Metatag tag generator
+options:
+  base_class: The base meta tag class to use.
+  module: common.options.module
+  name: Meta tag's HTML "name".
+  label: The user-friendly name for this meta tag.
+  description: A long explanation of this meta tag.
+  plugin_id: Internal (machine) name for the meta tag.
+  class_name: Internal camel-case version of the meta tag's name.
+  group: The meta tag's group.
+  weight: The sort order for this meta tag.
+  type: Type of the data included in this meta tag value.
+  secure: Whether this meta tag requires URLs be secure.
+  multiple: Whether this meta tag allows multiple values.
+  absolute_url: Whether this meta tag requires absolute URLs.
+questions:
+  base_class: Enter the base class to use
+  module: common.questions.module
+  name: Enter the meta tag's formal name, e.g. for the Open Graph "Title" tag use "og:title"
+  label: Enter a user-friendly version of the meta tag's name
+  description: Enter a longer explanation of what the meta tag is and how to use it
+  plugin_id: Enter the internal (machine) name for the meta tag plugin
+  class_name: Enter a camel-case version of the meta tag's name
+  group: Select the group the meta tag will use
+  weight: Enter the sort order for the meta tag
+  type: Which value type does this meta tag allow?
+  secure: Must this meta tag for URLs be secure?
+  multiple: Does this meta tag will allow multiple values?
+  absolute_url: Does this meta tag require absolute URLs to work?

sites/all/modules/contrib/admin/metatag/metatag.api.php

@@ -0,0 +1,59 @@
+<?php
+
+/**
+ * @file
+ * Document all supported APIs.
+ */
+
+/**
+ * Provides a ability to integrate alternative routes with metatags.
+ *
+ * Return an entity when the given route/route parameters matches a certain
+ * entity. All meta tags will be rendered on that page.
+ *
+ * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
+ *   The route match.
+ *
+ * @return \Drupal\Core\Entity\EntityInterface|null
+ *   Return an entity, if the route should use metatags.
+ */
+function hook_metatag_route_entity(\Drupal\Core\Routing\RouteMatchInterface $route_match) {
+  if ($route_match->getRouteName() === 'example.test_route') {
+    if ($node = $route_match->getParameter('node')) {
+      return $node;
+    }
+  }
+}
+
+/**
+ * Alter the meta tags for pages that are not of content entities.
+ *
+ * @param array $metatags
+ *   The special meta tags to be added to the page.
+ * @param array $context
+ *   The context for the current meta tags being generated. Will contain the
+ *   following:
+ *   'entity' - The entity being processed; passed by reference.
+ */
+function hook_metatags_alter(array &$metatags, array &$context) {
+  // Exclude meta tags on frontpage.
+  if (\Drupal::service('path.matcher')->isFrontPage()) {
+    $metatags = NULL;
+  }
+}
+
+/**
+ * Alter the meta tags for any page prior to page attachment.
+ *
+ * @param array $metatag_attachments
+ *   An array of metatag objects to be attached to the current page.
+ */
+function hook_metatags_attachments_alter(array &$metatag_attachments) {
+  if (\Drupal::service('path.matcher')->isFrontPage() && \Drupal::currentUser()->isAnonymous()) {
+    foreach ($metatag_attachments['#attached']['html_head'] as $id => $attachment) {
+      if ($attachment[1] == 'title') {
+        $metatag_attachments['#attached']['html_head'][$id][0]['#attributes']['content'] = 'Front Page Title for Anonymous Users';
+      }
+    }
+  }
+}

sites/all/modules/contrib/admin/metatag/metatag.info.yml

@@ -0,0 +1,20 @@
+name: Metatag
+type: module
+description: Manage meta tags for all entities.
+# core: 8.x
+package: SEO
+configure: entity.metatag_defaults.collection
+dependencies:
+  - drupal:field
+  - token:token
+test_dependencies:
+  - devel:devel
+  - redirect:redirect
+  - restui:restui
+  - schema_metatag:schema_web_page
+
+# Information added by Drupal.org packaging script on 2018-08-31
+version: '8.x-1.7'
+core: '8.x'
+project: 'metatag'
+datestamp: 1535726412

sites/all/modules/contrib/admin/metatag/metatag.install

@@ -0,0 +1,376 @@
+<?php
+
+/**
+ * @file
+ * Install, update and uninstall functions for the metatag module.
+ */
+
+/**
+ * Implements hook_install().
+ */
+function metatag_install() {
+  // Don't display the message during site installation, it looks funny.
+  if (!drupal_installation_attempted()) {
+    drupal_set_message(t("To adjust global defaults, go to admin/config/search/metatag. If you need to set meta tags for a specific entity, edit its bundle and add the Metatag field."));
+  }
+}
+
+/**
+ * Implements hook_requirements().
+ */
+function metatag_requirements($phase) {
+  $requirements = [];
+
+  if ($phase == 'runtime') {
+    // Recommend the Schema.org Metatag module.
+    if (!\Drupal::moduleHandler()->moduleExists('schema_metatag')) {
+      $requirements['metatag_schema'] = [
+        'severity' => REQUIREMENT_INFO,
+        'title' => 'Metatag',
+        'value' => t('Schema.org Metatag is recommended'),
+        'description' => t('The <a href="@module">Schema.org Metatag</a> module is highly recommended to add <a href="@jsonld">JSON-LD</a> -formatted <a href="@schema">schema.org</a> compatible data structures to the site.', [
+          '@module' => 'https://www.drupal.org/project/schema_metatag',
+          '@jsonld' => 'https://json-ld.org',
+          '@schema' => 'http://schema.org',
+        ]),
+      ];
+    }
+    else {
+      $requirements['metatag_schema'] = [
+        'severity' => REQUIREMENT_OK,
+        'title' => 'Metatag',
+        'value' => t('Schema.org Metatag is installed'),
+        'description' => t('The <a href="@module">Schema.org Metatag</a> module is installed.', [
+          '@module' => 'https://www.drupal.org/project/schema_metatag',
+        ]),
+      ];
+    }
+  }
+
+  return $requirements;
+}
+
+/**
+ * Remove tags in field storage that match default or are empty.
+ */
+function metatag_update_8101() {
+  // Get all of the field storage entities of type metatag.
+  $field_storage_configs = \Drupal::entityTypeManager()
+    ->getStorage('field_storage_config')
+    ->loadByProperties(['type' => 'metatag']);
+
+  foreach ($field_storage_configs as $field_storage) {
+    $field_name = $field_storage->getName();
+
+    // Get the individual fields (field instances) associated with bundles.
+    $fields = \Drupal::entityTypeManager()
+      ->getStorage('field_config')
+      ->loadByProperties(['field_name' => $field_name]);
+
+    // For each of the fields, delete all records that match the defaults.
+    foreach ($fields as $field) {
+      // Get the bundle this field is attached to.
+      $bundle = $field->getTargetBundle();
+
+      // Get the default value for this field on this bundle.
+      $field_default_tags_value = $field->getDefaultValueLiteral();
+      $field_default_tags_value = $field_default_tags_value[0]['value'];
+
+      // Determine the table and "value" field names.
+      $field_table = "node__" . $field_name;
+      $field_value_field = $field_name . "_value";
+
+      // Delete all records where the field value and default are identical.
+      \Drupal::database()->delete($field_table)
+        ->condition('bundle', $bundle, '=')
+        ->condition($field_value_field, $field_default_tags_value, '=')
+        ->execute();
+    }
+  }
+
+  return t('Removed all default meta tag records so they can be automatically inherited when the page is loaded.');
+}
+
+/**
+ * Remove tags in field storage that match default or are empty.
+ */
+function metatag_update_8102(&$sandbox) {
+  // This whole top section only needs to be done the first time.
+  if (!isset($sandbox['records_processed'])) {
+    $sandbox['records_processed'] = 0;
+    $sandbox['total_records'] = 0;
+    $sandbox['current_field'] = 0;
+    $sandbox['current_record'] = 0;
+
+    // Counter to enumerate the fields so we can access them in the array
+    // by number rather than name.
+    $field_counter = 0;
+
+    // Get all of the field storage entities of type metatag.
+    $field_storage_configs = \Drupal::entityTypeManager()
+      ->getStorage('field_storage_config')
+      ->loadByProperties(['type' => 'metatag']);
+
+    foreach ($field_storage_configs as $field_storage) {
+      $field_name = $field_storage->getName();
+
+      // Get the individual fields (field instances) associated with bundles.
+      $fields = \Drupal::entityTypeManager()
+        ->getStorage('field_config')
+        ->loadByProperties(['field_name' => $field_name]);
+
+      // For each of the fields, do the mass delete of exact matches but
+      // store the overridden records in the sandbox to be batch processed.
+      foreach ($fields as $field) {
+        // Get the bundle this field is attached to.
+        $bundle = $field->getTargetBundle();
+
+        // Get the default value for this field on this bundle.
+        $field_default_tags_value = $field->getDefaultValueLiteral();
+        $field_default_tags_value = $field_default_tags_value[0]['value'];
+        $field_default_tags = unserialize($field_default_tags_value);
+
+        // Determine the table and "value" field names.
+        $field_table = "node__" . $field_name;
+        $field_value_field = $field_name . "_value";
+
+        // Get all records where the field data does not match the default.
+        $query = \Drupal::database()->select($field_table);
+        $query->addField($field_table, 'entity_id');
+        $query->addField($field_table, 'revision_id');
+        $query->addField($field_table, 'langcode');
+        $query->addField($field_table, $field_value_field);
+        $query->condition('bundle', $bundle, '=');
+        $result = $query->execute();
+        $records = $result->fetchAll();
+
+        // Fill in all the sandbox information so we can batch the individual
+        // record comparing and updating.
+        $sandbox['fields'][$field_counter]['field_table'] = $field_table;
+        $sandbox['fields'][$field_counter]['field_value_field'] = $field_value_field;
+        $sandbox['fields'][$field_counter]['field_default_tags'] = $field_default_tags;
+        $sandbox['fields'][$field_counter]['records'] = $records;
+
+        $sandbox['total_records'] += count($sandbox['fields'][$field_counter]['records'] = $records);
+        $field_counter++;
+      }
+    }
+  }
+
+  if ($sandbox['total_records'] == 0) {
+    // No partially overridden fields so we can skip the whole batch process.
+    $sandbox['#finished'] = 1;
+  }
+  else {
+    // Begin the batch processing of individual field records.
+    $max_per_batch = 10;
+    $counter = 1;
+
+    $current_field = $sandbox['current_field'];
+    $current_field_records = $sandbox['fields'][$current_field]['records'];
+    $current_record = $sandbox['current_record'];
+
+    $field_table = $sandbox['fields'][$current_field]['field_table'];
+    $field_value_field = $sandbox['fields'][$current_field]['field_value_field'];
+    $field_default_tags = $sandbox['fields'][$current_field]['field_default_tags'];
+
+    // Loop through the field(s) and remove any field data that matches the
+    // field default for that bundle. Because the ability to override a default
+    // with "nothing" didn't exist prior to this and because any tag that had
+    // a default of "nothing" would have that also in the field data, we are
+    // removing those as well.
+    while ($counter <= $max_per_batch && $record = $current_field_records[$current_record]) {
+      // Strip any empty tags or ones matching the field's defaults and leave
+      // only the overridden tags in $new_tags.
+      $current_tags = unserialize($record->$field_value_field);
+      $new_tags = [];
+      foreach ($current_tags as $key => $tag) {
+        if (!empty($tag) && $field_default_tags[$key] != $tag) {
+          $new_tags[$key] = $tag;
+        }
+      }
+
+      if (empty($new_tags)) {
+        // All tags were either empty or matched the default so the record can
+        // be deleted.
+        \Drupal::database()->delete($field_table)
+          ->condition('entity_id', $record->entity_id)
+          ->condition('revision_id', $record->revision_id)
+          ->condition('langcode', $record->langcode)
+          ->execute();
+      }
+      else {
+        // There are some overridden tags so update the record with just those.
+        $tags_string = serialize($new_tags);
+        \Drupal::database()->update($field_table)
+          ->fields([
+            $field_value_field => $tags_string,
+          ])
+          ->condition('entity_id', $record->entity_id)
+          ->condition('revision_id', $record->revision_id)
+          ->condition('langcode', $record->langcode)
+          ->execute();
+      }
+
+      $counter++;
+      $current_record++;
+    }
+
+    // We ran out of records for the field so start the next batch out with the
+    // next field.
+    if (!isset($current_field_records[$current_record])) {
+      $current_field++;
+      $current_record = 0;
+    }
+
+    // We have finished all the fields. All done.
+    if (!isset($sandbox['fields'][$current_field])) {
+      $sandbox['records_processed'] += $counter - 1;
+      $sandbox['#finished'] = 1;
+    }
+    // Update the sandbox values to prepare for the next round.
+    else {
+      $sandbox['current_field'] = $current_field;
+      $sandbox['current_record'] = $current_record;
+      $sandbox['records_processed'] += $counter - 1;
+      $sandbox['#finished'] = $sandbox['records_processed'] / $sandbox['total_records'];
+    }
+  }
+
+  if ($sandbox['total_records'] > 0) {
+    return (string) t('Processed @processed of @total overridden Metatag records.', [
+      '@processed' => $sandbox['records_processed'],
+      '@total' => $sandbox['total_records'],
+    ]);
+  }
+  else {
+    return (string) t("There were no overridden Metatag records.");
+  }
+}
+
+/**
+ * Move field defaults to Metatag Defaults.
+ */
+function metatag_update_8103() {
+  $config_installer = \Drupal::service('config.installer');
+  $entity_manager = \Drupal::entityTypeManager();
+
+  // 1. Install cofiguration.
+  $sync_status = $config_installer->isSyncing();
+  if ($sync_status) {
+    $source_storage = $config_installer->getSourceStorage();
+  }
+
+  // Clear plugin manager caches.
+  \Drupal::getContainer()->get('plugin.cache_clearer')->clearCachedDefinitions();
+  // Install default configuration of the module.
+  if ($sync_status) {
+    $config_installer
+      ->setSyncing(TRUE)
+      ->setSourceStorage($source_storage);
+  }
+
+  // Install new configuration for Metatag.
+  $config_installer->installDefaultConfig('module', 'metatag');
+
+  // Apply all entity definition changes.
+  \Drupal::entityDefinitionUpdateManager()->applyUpdates();
+
+  // 2. Extract Metatag field defaults.
+  $entity_info = $entity_manager->getDefinitions();
+  $tags = [];
+
+  // Get all of the field storage entities of type metatag.
+  $field_storage_configs = $entity_manager
+    ->getStorage('field_storage_config')
+    ->loadByProperties(['type' => 'metatag']);
+
+  foreach ($field_storage_configs as $field_storage) {
+    $field_name = $field_storage->getName();
+
+    // Get the individual fields (field instances) associated with bundles.
+    $fields = $entity_manager->getStorage('field_config')
+      ->loadByProperties(['field_name' => $field_name]);
+    foreach ($fields as $field) {
+      // Adjust the config id depending on whether these are entity defaults
+      // or bundle defaults.
+      $entity_type = $field->getTargetEntityTypeId();
+      $bundle = $field->getTargetBundle();
+      $metatag_defaults_id = $entity_type;
+      if ($entity_type != $bundle) {
+        // This is a bundle override.
+        $metatag_defaults_id = $entity_type . '__' . $bundle;
+      }
+      // Extract field default values.
+      $field_default_tags_value = $field->getDefaultValueLiteral();
+      $field_default_tags_value = unserialize($field_default_tags_value[0]['value']);
+      $field_default_tags_value = array_filter($field_default_tags_value);
+      // Don't bother copying empty values.
+      if (!empty($field_default_tags_value)) {
+        $tags[$metatag_defaults_id] = $field_default_tags_value;
+      }
+    }
+  }
+
+  // 3. Create Config entities with field default values.
+  if (!empty($tags)) {
+    $bundleInfoManager = \Drupal::service('entity_type.bundle.info');
+    foreach ($tags as $metatag_defaults_id => $values) {
+      list($entity_type, $entity_bundle) = explode('__', $metatag_defaults_id);
+      $entity_label = (string) $entity_info[$entity_type]->get('label');
+      $bundle_info = $bundleInfoManager->getBundleInfo($entity_type);
+      $bundle_label = $bundle_info[$entity_bundle]['label'];
+      $label = $entity_label . ': ' . $bundle_label;
+
+      $metatags_global_manager = $entity_manager->getStorage('metatag_defaults');
+
+      $entity = $metatags_global_manager->load($metatag_defaults_id);
+      if ($entity) {
+        // These are defaults for an existing config entity, such as User.
+        $entity->set('tags', $values);
+      }
+      else {
+        // These are bundle overrides.
+        $entity = $metatags_global_manager->create([
+          'id' => $metatag_defaults_id,
+          'label' => $label,
+          'tags' => $values,
+        ]);
+      }
+      $entity->save();
+    }
+    return (string) t("@count Metatag field defaults have been converted to using global entity defaults.", ['@count' => count($tags)]);
+  }
+  else {
+    return (string) t("There were Metatag field configurations that needed to be converted.");
+  }
+}
+
+/**
+ * Rebuild routes after moving Metatag admin from Structure to Config.
+ */
+function metatag_update_8104() {
+  \Drupal::service('router.builder')->setRebuildNeeded();
+}
+
+/**
+ * Rebuild routes after renaming.
+ */
+function metatag_update_8105() {
+  \Drupal::service('router.builder')->setRebuildNeeded();
+}
+
+/**
+ * Add the metatag_defaults config entity to the site.
+ */
+function metatag_update_8106() {
+  \Drupal::entityDefinitionUpdateManager()->applyUpdates();
+}
+
+/**
+ * Enable the new metatag_open_graph module.
+ */
+function metatag_update_8107() {
+  \Drupal::service('module_installer')->install(['metatag_open_graph']);
+  return (string) t("The new Metatag: Open Graph module has been enabled.");
+}

sites/all/modules/contrib/admin/metatag/metatag.links.action.yml

@@ -0,0 +1,5 @@
+entity.metatag_defaults.add_form:
+  route_name: 'entity.metatag_defaults.add_form'
+  title: 'Add default meta tags'
+  appears_on:
+    - entity.metatag_defaults.collection

sites/all/modules/contrib/admin/metatag/metatag.links.menu.yml

@@ -0,0 +1,11 @@
+# Metatag defaults menu items definition
+entity.metatag_defaults.collection:
+  title: 'Metatag'
+  route_name: entity.metatag_defaults.collection
+  description: 'Configure Metatag defaults.'
+  parent: system.admin_config_search
+metatag.settings:
+  title: 'Settings'
+  route_name: metatag.settings
+  description: 'Configure Metatag defaults.'
+  parent: entity.metatag_defaults.collection

sites/all/modules/contrib/admin/metatag/metatag.links.task.yml

@@ -0,0 +1,10 @@
+metatag_defaults:
+  route_name: 'entity.metatag_defaults.collection'
+  base_route: 'entity.metatag_defaults.collection'
+  title: 'Metatag defaults'
+  weight: 0
+metatag.settings:
+  route_name: 'metatag.settings'
+  base_route: 'entity.metatag_defaults.collection'
+  title: 'Settings'
+  weight: 10

sites/all/modules/contrib/admin/metatag/metatag.permissions.yml

@@ -0,0 +1,4 @@
+'administer meta tags':
+  title: Administer meta tags
+  description: Control the main settings pages and modify per-object meta tags.
+  'restrict access': TRUE

sites/all/modules/contrib/admin/metatag/metatag.routing.yml

@@ -0,0 +1,60 @@
+# MetatagDefaults routing definition
+entity.metatag_defaults.collection:
+  path: '/admin/config/search/metatag'
+  defaults:
+    _entity_list: 'metatag_defaults'
+    _title: 'Metatag'
+  requirements:
+    _permission: 'administer meta tags'
+  options:
+    _admin_route: TRUE
+
+entity.metatag_defaults.add_form:
+  path: '/admin/config/search/metatag/add'
+  defaults:
+    _entity_form: 'metatag_defaults.add'
+    _title: 'Add default meta tags'
+  requirements:
+    _permission: 'administer meta tags'
+  options:
+    _admin_route: TRUE
+
+entity.metatag_defaults.edit_form:
+  path: '/admin/config/search/metatag/{metatag_defaults}'
+  defaults:
+    _entity_form: 'metatag_defaults.edit'
+    _title: 'Edit default meta tags'
+  requirements:
+    _permission: 'administer meta tags'
+  options:
+    _admin_route: TRUE
+
+entity.metatag_defaults.delete_form:
+  path: '/admin/config/search/metatag/{metatag_defaults}/delete'
+  defaults:
+    _entity_form: 'metatag_defaults.delete'
+    _title: 'Delete default meta tags'
+  requirements:
+    _permission: 'administer meta tags'
+  options:
+    _admin_route: TRUE
+
+entity.metatag_defaults.revert_form:
+  path: '/admin/config/search/metatag/{metatag_defaults}/revert'
+  defaults:
+    _entity_form: 'metatag_defaults.revert'
+    _title: 'Revert default meta tags'
+  requirements:
+    _permission: 'administer meta tags'
+  options:
+    _admin_route: TRUE
+
+metatag.settings:
+  path: '/admin/config/search/metatag/settings'
+  defaults:
+    _form: '\Drupal\metatag\Form\MetatagSettingsForm'
+    _title: 'Configure the Metatag module'
+  requirements:
+    _permission: 'administer meta tags'
+  options:
+    _admin_route: TRUE

sites/all/modules/contrib/admin/metatag/metatag.services.yml

@@ -0,0 +1,16 @@
+services:
+  plugin.manager.metatag.tag:
+    class: Drupal\metatag\MetatagTagPluginManager
+    parent: default_plugin_manager
+
+  plugin.manager.metatag.group:
+    class: Drupal\metatag\MetatagGroupPluginManager
+    parent: default_plugin_manager
+
+  metatag.token:
+    class: Drupal\metatag\MetatagToken
+    arguments: ['@token']
+
+  metatag.manager:
+    class: Drupal\metatag\MetatagManager
+    arguments: ['@plugin.manager.metatag.group', '@plugin.manager.metatag.tag', '@metatag.token', '@logger.factory', '@entity_type.manager']

sites/all/modules/contrib/admin/metatag/metatag_app_links/config/schema/metatag_app_links.metatag_tag.schema.yml

@@ -0,0 +1,76 @@
+# The 'type' should be "label" for short meta tags and "text" for ones which
+# could get longer, especially ones which use a textarea field instead of a
+# textfield.
+
+metatag.metatag_tag.al_android_app_name:
+  type: label
+  label: 'Android app name'
+metatag.metatag_tag.al_android_class:
+  type: label
+  label: 'Android app Activity Class'
+metatag.metatag_tag.al_android_package:
+  type: label
+  label: 'Android app package ID'
+metatag.metatag_tag.al_android_url:
+  type: label
+  label: 'Android app URL scheme'
+metatag.metatag_tag.al_ios_url:
+  type: label
+  label: 'iOS app URL scheme'
+metatag.metatag_tag.al_ios_app_store_id:
+  type: label
+  label: 'iOS app store ID'
+metatag.metatag_tag.al_ios_app_name:
+  type: label
+  label: 'iOS app name'
+metatag.metatag_tag.al_ipad_url:
+  type: label
+  label: 'iPad app URL scheme'
+metatag.metatag_tag.al_ipad_app_store_id:
+  type: label
+  label: 'iPad app store ID'
+metatag.metatag_tag.al_ipad_app_name:
+  type: label
+  label: 'iPad app name'
+metatag.metatag_tag.al_iphone_url:
+  type: label
+  label: 'iPhone app URL scheme'
+metatag.metatag_tag.al_iphone_app_store_id:
+  type: label
+  label: 'iPhone app store ID'
+metatag.metatag_tag.al_iphone_app_name:
+  type: label
+  label: 'iPhone app URL scheme'
+metatag.metatag_tag.al_windows_app_id:
+  type: label
+  label: 'Windows app GUID'
+metatag.metatag_tag.al_windows_app_name:
+  type: label
+  label: 'Windows app name'
+metatag.metatag_tag.al_windows_url:
+  type: label
+  label: 'Windows app URL scheme'
+metatag.metatag_tag.al_windows_phone_url:
+  type: label
+  label: 'Windows Phone app URL scheme'
+metatag.metatag_tag.al_windows_phone_app_id:
+  type: label
+  label: 'Windows Phone app GUID'
+metatag.metatag_tag.al_windows_phone_app_name:
+  type: label
+  label: 'Windows Phone app name'
+metatag.metatag_tag.al_windows_universal_url:
+  type: label
+  label: 'Windows Universal app URL scheme'
+metatag.metatag_tag.al_windows_universal_app_id:
+  type: label
+  label: 'Windows Universal app GUID'
+metatag.metatag_tag.al_windows_universal_app_name:
+  type: label
+  label: 'Windows Universal app name'
+metatag.metatag_tag.al_web_url:
+  type: label
+  label: 'Web URL'
+metatag.metatag_tag.al_web_should_fallback:
+  type: label
+  label: 'Should fallback'

sites/all/modules/contrib/admin/metatag/metatag_app_links/metatag_app_links.info.yml

@@ -0,0 +1,13 @@
+name: 'Metatag: App Links'
+type: module
+description: Provides support for applinks.org meta tags.
+# core: 8.x
+package: SEO
+dependencies:
+  - metatag:metatag
+
+# Information added by Drupal.org packaging script on 2018-08-31
+version: '8.x-1.7'
+core: '8.x'
+project: 'metatag'
+datestamp: 1535726412

sites/all/modules/contrib/admin/metatag/metatag_app_links/metatag_app_links.module

@@ -0,0 +1,24 @@
+<?php
+
+/**
+ * @file
+ * Contains metatag_app_links.module.
+ */
+
+use Drupal\Core\Routing\RouteMatchInterface;
+
+/**
+ * Implements hook_help().
+ */
+function metatag_app_links_help($route_name, RouteMatchInterface $route_match) {
+  switch ($route_name) {
+    // Main module help for the metatag_app_links module.
+    case 'help.page.metatag_app_links':
+      $output = '';
+      $output .= '<h3>' . t('About') . '</h3>';
+      $output .= '<p>' . t('Provides support for applinks.org meta tags.') . '</p>';
+      return $output;
+
+    default:
+  }
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Group/AppLinks.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Group;
+
+use Drupal\metatag\Plugin\metatag\Group\GroupBase;
+
+/**
+ * Provides a plugin for the 'App Links' meta tag group.
+ *
+ * @MetatagGroup(
+ *   id = "app_links",
+ *   label = @Translation("App Links"),
+ *   description = @Translation("Meta tags used to expose App Links for app deep linking. See <a href="":url"">applinks.org</a> for details and documentation.", arguments = { ":url" = "http://applinks.org"}),
+ *   weight = 0,
+ * )
+ */
+class AppLinks extends GroupBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlAndroidAppName.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Android app name meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_android_app_name",
+ *   label = @Translation("Android app name"),
+ *   description = @Translation("The name of the app (suitable for display)."),
+ *   name = "al:android:app_name",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlAndroidAppName extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlAndroidClass.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Android app Activity Class meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_android_class",
+ *   label = @Translation("Android app Activity Class"),
+ *   description = @Translation("A fully-qualified Activity class name for intent generation."),
+ *   name = "al:android:class",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlAndroidClass extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlAndroidPackage.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Android app package ID meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_android_package",
+ *   label = @Translation("Android app package ID"),
+ *   description = @Translation("A fully-qualified package name for intent generation. <strong>This attribute is required by the App Links specification.</strong>"),
+ *   name = "al:android:package",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlAndroidPackage extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlAndroidUrl.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Android app URL scheme meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_android_url",
+ *   label = @Translation("Android app URL scheme"),
+ *   description = @Translation("A custom scheme for the Android app."),
+ *   name = "al:android:url",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlAndroidUrl extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlIosAppName.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks iOS app name meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_ios_app_name",
+ *   label = @Translation("iOS app name"),
+ *   description = @Translation("The name of the app (suitable for display)"),
+ *   name = "al:ios:app_name",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlIosAppName extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlIosAppStoreId.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks iOS app store ID meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_ios_app_store_id",
+ *   label = @Translation("iOS app store ID"),
+ *   description = @Translation("The app ID for the app store."),
+ *   name = "al:ios:app_store_id",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlIosAppStoreId extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlIosUrl.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks iOS App URL scheme meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_ios_url",
+ *   label = @Translation("iOS app URL scheme"),
+ *   description = @Translation("A custom scheme for the iOS app. <strong>This attribute is required by the app Links specification.</strong>"),
+ *   name = "al:ios:url",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlIosUrl extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlIpadAppName.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks iPad app name meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_ipad_app_name",
+ *   label = @Translation("iPad app name"),
+ *   description = @Translation("The name of the app (suitable for display)."),
+ *   name = "al:ipad:app_name",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlIpadAppName extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlIpadAppStoreId.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks iPad app store ID meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_ipad_app_store_id",
+ *   label = @Translation("iPad app store ID"),
+ *   description = @Translation("The app ID for the app store."),
+ *   name = "al:ipad:app_store_id",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlIpadAppStoreId extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlIpadUrl.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks iPad App URL scheme meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_ipad_url",
+ *   label = @Translation("iPad app URL scheme"),
+ *   description = @Translation("A custom scheme for the iOS app. <strong>This attribute is required by the app Links specification.</strong>"),
+ *   name = "al:ipad:url",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlIpadUrl extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlIphoneAppName.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks iPhone app name meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_iphone_app_name",
+ *   label = @Translation("iPhone app name"),
+ *   description = @Translation("The name of the app (suitable for display)."),
+ *   name = "al:iphone:app_name",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlIphoneAppName extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlIphoneAppStoreId.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks iPad app store ID meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_iphone_app_store_id",
+ *   label = @Translation("iPhone app store ID"),
+ *   description = @Translation("The app ID for the app store."),
+ *   name = "al:iphone:app_store_id",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlIphoneAppStoreId extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlIphoneUrl.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks iPhone App URL scheme meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_iphone_url",
+ *   label = @Translation("iPhone app URL scheme"),
+ *   description = @Translation("A custom scheme for the iOS app. <strong>This attribute is required by the app Links specification.</strong>"),
+ *   name = "al:iphone:url",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlIphoneUrl extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlWebShouldFallback.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Web Should Fallback meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_web_should_fallback",
+ *   label = @Translation("Should fallback"),
+ *   description = @Translation("Indicates if the web URL should be used as a fallback; defaults to ""true""."),
+ *   name = "al:web:should_fallback",
+ *   group = "app_links",
+ *   weight = 2,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlWebShouldFallback extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlWebUrl.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Web URL meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_web_url",
+ *   label = @Translation("Web URL"),
+ *   description = @Translation("The web URL; defaults to the URL for the content that contains this tag."),
+ *   name = "al:web:url",
+ *   group = "app_links",
+ *   weight = 2,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlWebUrl extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlWindowsAppId.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Windows app ID meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_windows_app_id",
+ *   label = @Translation("Windows app ID"),
+ *   description = @Translation("The app ID for the app store."),
+ *   name = "al:windows:app_id",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlWindowsAppId extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlWindowsAppName.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Windows app name meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_windows_app_name",
+ *   label = @Translation("Windows app name"),
+ *   description = @Translation("The name of the app (suitable for display)."),
+ *   name = "al:windows:app_name",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlWindowsAppName extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlWindowsPhoneAppId.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Windows Phone app ID meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_windows_phone_app_id",
+ *   label = @Translation("Windows Phone app ID"),
+ *   description = @Translation("The app ID for the app store."),
+ *   name = "al:windows_phone:app_id",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlWindowsPhoneAppId extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlWindowsPhoneAppName.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Windows Phone app name meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_windows_phone_app_name",
+ *   label = @Translation("Windows Phone app name"),
+ *   description = @Translation("The name of the app (suitable for display)"),
+ *   name = "al:windows_phone:app_name",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlWindowsPhoneAppName extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlWindowsPhoneUrl.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Windows Phone app URL scheme meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_windows_phone_url",
+ *   label = @Translation("Windows Phone app URL scheme"),
+ *   description = @Translation("A custom scheme for the iOS app. <strong>This attribute is required by the app Links specification.</strong>"),
+ *   name = "al:windows_phone:url",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlWindowsPhoneUrl extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlWindowsUniversalAppId.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Windows Universal app ID meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_windows_universal_app_id",
+ *   label = @Translation("Windows Universal app ID"),
+ *   description = @Translation("The app ID for the app store."),
+ *   name = "al:windows_universal:app_id",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlWindowsUniversalAppId extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlWindowsUniversalAppName.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Windows Universal app name meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_windows_universal_app_name",
+ *   label = @Translation("Windows Universal app name"),
+ *   description = @Translation("The name of the app (suitable for display)"),
+ *   name = "al:windows_universal:app_name",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlWindowsUniversalAppName extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlWindowsUniversalUrl.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Windows Universal app URL scheme meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_windows_universal_url",
+ *   label = @Translation("Windows Universal app URL scheme"),
+ *   description = @Translation("A custom scheme for the iOS app. <strong>This attribute is required by the app Links specification.</strong>"),
+ *   name = "al:windows_universal:url",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlWindowsUniversalUrl extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Plugin/metatag/Tag/AlWindowsUrl.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_app_links\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
+
+/**
+ * The AppLinks Windows App URL scheme meta tag.
+ *
+ * @MetatagTag(
+ *   id = "al_windows_url",
+ *   label = @Translation("Windows app URL scheme"),
+ *   description = @Translation("A custom scheme for the iOS app. <strong>This attribute is required by the app Links specification.</strong>"),
+ *   name = "al:windows:url",
+ *   group = "app_links",
+ *   weight = 1,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AlWindowsUrl extends MetaPropertyBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_app_links/src/Tests/MetatagAppLinksTagsTest.php

@@ -0,0 +1,74 @@
+<?php
+
+namespace Drupal\metatag_app_links\Tests;
+
+use Drupal\metatag\Tests\MetatagTagsTestBase;
+
+/**
+ * Tests that each of the App Links tags work correctly.
+ *
+ * @group metatag
+ */
+class MetatagAppLinksTagsTest extends MetatagTagsTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  private $tags = [
+    'al_android_app_name',
+    'al_android_class',
+    'al_android_package',
+    'al_android_url',
+    'al_ios_app_name',
+    'al_ios_app_store_id',
+    'al_ios_url',
+    'al_ipad_app_name',
+    'al_ipad_app_store_id',
+    'al_ipad_url',
+    'al_iphone_app_name',
+    'al_iphone_app_store_id',
+    'al_iphone_url',
+    'al_web_should_fallback',
+    'al_web_url',
+    'al_windows_app_id',
+    'al_windows_app_name',
+    'al_windows_phone_app_id',
+    'al_windows_phone_app_name',
+    'al_windows_phone_url',
+    'al_windows_universal_app_id',
+    'al_windows_universal_app_name',
+    'al_windows_universal_url',
+    'al_windows_url',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  private $testNameAttribute = 'property';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::$modules[] = 'metatag_app_links';
+    parent::setUp();
+  }
+
+  /**
+   * Each of these meta tags has a different tag name vs its internal name.
+   */
+  private function getTestTagName($tag_name) {
+    $tag_name = str_replace('al_android_', 'al:android:', $tag_name);
+    $tag_name = str_replace('al_ios_', 'al:ios:', $tag_name);
+    $tag_name = str_replace('al_ipad_', 'al:ipad:', $tag_name);
+    $tag_name = str_replace('al_iphone_', 'al:iphone:', $tag_name);
+    $tag_name = str_replace('al_web_', 'al:web:', $tag_name);
+    // Run the Windows subtype replacements first so that the generic Windows
+    // one can still work.
+    $tag_name = str_replace('al_windows_phone_', 'al:windows_phone:', $tag_name);
+    $tag_name = str_replace('al_windows_universal_', 'al:windows_universal:', $tag_name);
+    $tag_name = str_replace('al_windows_', 'al:windows:', $tag_name);
+    return $tag_name;
+  }
+
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/config/schema/metatag_dc.metatag_tag.schema.yml

@@ -0,0 +1,49 @@
+# The 'type' should be "label" for short meta tags and "text" for ones which
+# could get longer, especially ones which use a textarea field instead of a
+# textfield.
+
+metatag.metatag_tag.dcterms_contributor:
+  type: label
+  label: 'Dublin Core: Contributor'
+metatag.metatag_tag.dcterms_coverage:
+  type: label
+  label: 'Dublin Core: Coverage'
+metatag.metatag_tag.dcterms_creator:
+  type: label
+  label: 'Dublin Core: Creator'
+metatag.metatag_tag.dcterms_date:
+  type: label
+  label: 'Dublin Core: Date'
+metatag.metatag_tag.dcterms_description:
+  type: text
+  label: 'Dublin Core: Description'
+metatag.metatag_tag.dcterms_format:
+  type: label
+  label: 'Dublin Core: Format'
+metatag.metatag_tag.dcterms_identifier:
+  type: label
+  label: 'Dublin Core: Identifier'
+metatag.metatag_tag.dcterms_language:
+  type: label
+  label: 'Dublin Core: Language'
+metatag.metatag_tag.dcterms_publisher:
+  type: label
+  label: 'Dublin Core: Publisher'
+metatag.metatag_tag.dcterms_relation:
+  type: label
+  label: 'Dublin Core: Relation'
+metatag.metatag_tag.dcterms_rights:
+  type: label
+  label: 'Dublin Core: Rights'
+metatag.metatag_tag.dcterms_source:
+  type: label
+  label: 'Dublin Core: Source'
+metatag.metatag_tag.dcterms_subject:
+  type: label
+  label: 'Dublin Core: Subject'
+metatag.metatag_tag.dcterms_title:
+  type: label
+  label: 'Dublin Core: Title'
+metatag.metatag_tag.dcterms_type:
+  type: label
+  label: 'Dublin Core: Type'

sites/all/modules/contrib/admin/metatag/metatag_dc/metatag_dc.info.yml

@@ -0,0 +1,13 @@
+name: 'Metatag: Dublin Core'
+type: module
+description: Provides the fifteen <a href="http://dublincore.org/documents/dces/">Dublin Core Metadata Element Set 1.1</a> meta tags from the <a href="http://dublincore.org/">Dublin Core Metadata Institute</a>.
+# core: 8.x
+package: SEO
+dependencies:
+  - metatag:metatag
+
+# Information added by Drupal.org packaging script on 2018-08-31
+version: '8.x-1.7'
+core: '8.x'
+project: 'metatag'
+datestamp: 1535726412

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Group/DublinCore.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Group;
+
+use Drupal\metatag\Plugin\metatag\Group\GroupBase;
+
+/**
+ * The DublinCore group.
+ *
+ * @MetatagGroup(
+ *   id = "dublin_core",
+ *   label = @Translation("Dublin Core"),
+ *   description = @Translation("Provides the fifteen <a href=':docs'>Dublin Core Metadata Element Set 1.1</a> meta tags from the <a href=':link'>Dublin Core Metadata Institute</a>", arguments = { ":docs" = "http://dublincore.org/documents/dces/", ":link" = "http://dublincore.org/"}),
+ *   weight = 4
+ * )
+ */
+class DublinCore extends GroupBase {
+  // Inherits everything from Base.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Contributor.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Contributor" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_contributor",
+ *   label = @Translation("Contributor"),
+ *   description = @Translation("An entity responsible for making contributions to the resource. Examples of a Contributor include a person, an organization, or a service. Typically, the name of a Contributor should be used to indicate the entity."),
+ *   name = "dcterms.contributor",
+ *   group = "dublin_core",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Contributor extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Creator.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Creator" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_creator",
+ *   label = @Translation("Creator"),
+ *   description = @Translation("An entity primarily responsible for making the resource. Examples of a Creator include a person, an organization, or a service. Typically, the name of a Creator should be used to indicate the entity."),
+ *   name = "dcterms.creator",
+ *   group = "dublin_core",
+ *   weight = 2,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Creator extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Date.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Date" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_date",
+ *   label = @Translation("Date"),
+ *   description = @Translation("A point or period of time associated with an event in the lifecycle of the resource. Date may be used to express temporal information at any level of granularity.  Recommended best practice is to use an encoding scheme, such as the W3CDTF profile of ISO 8601 [W3CDTF]."),
+ *   name = "dcterms.date",
+ *   group = "dublin_core",
+ *   weight = 7,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Date extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Description.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Description" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_description",
+ *   label = @Translation("Description"),
+ *   description = @Translation("An account of the resource. Description may include but is not limited to: an abstract, a table of contents, a graphical representation, or a free-text account of the resource."),
+ *   name = "dcterms.description",
+ *   group = "dublin_core",
+ *   weight = 4,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Description extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Format.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Date" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_format",
+ *   label = @Translation("Format"),
+ *   description = @Translation("The file format, physical medium, or dimensions of the resource. Examples of dimensions include size and duration. Recommended best practice is to use a controlled vocabulary such as the list of Internet Media Types [MIME]."),
+ *   name = "dcterms.format",
+ *   group = "dublin_core",
+ *   weight = 9,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Format extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Identifier.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Identifier" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_identifier",
+ *   label = @Translation("Identifier"),
+ *   description = @Translation("An unambiguous reference to the resource within a given context. Recommended best practice is to identify the resource by means of a string conforming to a formal identification system."),
+ *   name = "dcterms.identifier",
+ *   group = "dublin_core",
+ *   weight = 10,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Identifier extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Language.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Language" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_language",
+ *   label = @Translation("Language"),
+ *   description = @Translation("A language of the resource. Recommended best practice is to use a controlled vocabulary such as RFC 4646 [RFC4646]."),
+ *   name = "dcterms.language",
+ *   group = "dublin_core",
+ *   weight = 12,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Language extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Publisher.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Publisher" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_publisher",
+ *   label = @Translation("Publisher"),
+ *   description = @Translation("An entity responsible for making the resource available. Examples of a Publisher include a person, an organization, or a service. Typically, the name of a Publisher should be used to indicate the entity."),
+ *   name = "dcterms.publisher",
+ *   group = "dublin_core",
+ *   weight = 5,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Publisher extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Relation.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Relation" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_relation",
+ *   label = @Translation("Relation"),
+ *   description = @Translation("A related resource. Recommended best practice is to identify the related resource by means of a string conforming to a formal identification system."),
+ *   name = "dcterms.relation",
+ *   group = "dublin_core",
+ *   weight = 13,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Relation extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Rights.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Rights" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_rights",
+ *   label = @Translation("Rights"),
+ *   description = @Translation("Information about rights held in and over the resource. Typically, rights information includes a statement about various property rights associated with the resource, including intellectual property rights."),
+ *   name = "dcterms.rights",
+ *   group = "dublin_core",
+ *   weight = 15,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Rights extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Source.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Source" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_source",
+ *   label = @Translation("Source"),
+ *   description = @Translation("A related resource from which the described resource is derived. The described resource may be derived from the related resource in whole or in part. Recommended best practice is to identify the related resource by means of a string conforming to a formal identification system."),
+ *   name = "dcterms.source",
+ *   group = "dublin_core",
+ *   weight = 11,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Source extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Subject.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Subject" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_subject",
+ *   label = @Translation("Subject"),
+ *   description = @Translation("The topic of the resource. Typically, the subject will be represented using keywords, key phrases, or classification codes. Recommended best practice is to use a controlled vocabulary. To describe the spatial or temporal topic of the resource, use the Coverage element."),
+ *   name = "dcterms.subject",
+ *   group = "dublin_core",
+ *   weight = 3,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Subject extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Title.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Title" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_title",
+ *   label = @Translation("Title"),
+ *   description = @Translation("The name given to the resource."),
+ *   name = "dcterms.title",
+ *   group = "dublin_core",
+ *   weight = 1,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Title extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Plugin/metatag/Tag/Type.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Type" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_type",
+ *   label = @Translation("Type"),
+ *   description = @Translation("The nature or genre of the resource. Recommended best practice is to use a controlled vocabulary such as the DCMI Type Vocabulary [DCMITYPE]. To describe the file format, physical medium, or dimensions of the resource, use the Format element."),
+ *   name = "dcterms.type",
+ *   group = "dublin_core",
+ *   weight = 8,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Type extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc/src/Tests/MetatagDublinCoreTagsTest.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace Drupal\metatag_dc\Tests;
+
+use Drupal\metatag\Tests\MetatagTagsTestBase;
+
+/**
+ * Tests that each of the Dublin Core tags work correctly.
+ *
+ * @group metatag
+ */
+class MetatagDublinCoreTagsTest extends MetatagTagsTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  private $tags = [
+    'dcterms_contributor',
+    'dcterms_coverage',
+    'dcterms_creator',
+    'dcterms_date',
+    'dcterms_description',
+    'dcterms_format',
+    'dcterms_identifier',
+    'dcterms_language',
+    'dcterms_publisher',
+    'dcterms_relation',
+    'dcterms_rights',
+    'dcterms_source',
+    'dcterms_subject',
+    'dcterms_title',
+    'dcterms_type',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::$modules[] = 'metatag_dc';
+    parent::setUp();
+  }
+
+  /**
+   * Each of these meta tags has a different tag name vs its internal name.
+   */
+  private function getTestTagName($tag_name) {
+    return str_replace('_', '.', $tag_name);
+  }
+
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/config/schema/metatag_dc_advanced.metatag_tag.schema.yml

@@ -0,0 +1,124 @@
+# The 'type' should be "label" for short meta tags and "text" for ones which
+# could get longer, especially ones which use a textarea field instead of a
+# textfield.
+
+metatag.metatag_tag.dcterms_abstract:
+  type: label
+  label: 'Dublin Core: Abstract'
+metatag.metatag_tag.dcterms_access_rights:
+  type: label
+  label: 'Dublin Core: Access Rights'
+metatag.metatag_tag.dcterms_accrual_method:
+  type: label
+  label: 'Dublin Core: Accrual Method'
+metatag.metatag_tag.dcterms_accrual_periodicity:
+  type: label
+  label: 'Dublin Core: Accrual Periodicity'
+metatag.metatag_tag.dcterms_accrual_policy:
+  type: text
+  label: 'Dublin Core: Accrual Policy'
+metatag.metatag_tag.dcterms_alternative:
+  type: label
+  label: 'Dublin Core: Alternative Title'
+metatag.metatag_tag.dcterms_audience:
+  type: label
+  label: 'Dublin Core: Audience'
+metatag.metatag_tag.dcterms_available:
+  type: label
+  label: 'Dublin Core: Date Available'
+metatag.metatag_tag.dcterms_bibliographic_citation:
+  type: label
+  label: 'Dublin Core: Bibliographic Citation'
+metatag.metatag_tag.dcterms_conforms_to:
+  type: label
+  label: 'Dublin Core: Conforms To'
+metatag.metatag_tag.dcterms_created:
+  type: label
+  label: 'Dublin Core: Date Created'
+metatag.metatag_tag.dcterms_date_accepted:
+  type: label
+  label: 'Dublin Core: Date Accepted'
+metatag.metatag_tag.dcterms_date_copyrighted:
+  type: label
+  label: 'Dublin Core: Date Copyrighted'
+metatag.metatag_tag.dcterms_date_submitted:
+  type: label
+  label: 'Dublin Core: Date Submitted'
+metatag.metatag_tag.dcterms_education_level:
+  type: label
+  label: 'Dublin Core: Audience Education Level'
+metatag.metatag_tag.dcterms_extent:
+  type: label
+  label: 'Dublin Core: Extent'
+metatag.metatag_tag.dcterms_has_format:
+  type: label
+  label: 'Dublin Core: Has Format'
+metatag.metatag_tag.dcterms_has_part:
+  type: label
+  label: 'Dublin Core: Has Part'
+metatag.metatag_tag.dcterms_has_version:
+  type: label
+  label: 'Dublin Core: Has Version'
+metatag.metatag_tag.dcterms_instructional_method:
+  type: label
+  label: 'Dublin Core: Instructional Method'
+metatag.metatag_tag.dcterms_is_format_of:
+  type: label
+  label: 'Dublin Core: Is Format Of'
+metatag.metatag_tag.dcterms_is_part_of:
+  type: label
+  label: 'Dublin Core: Is Part Of'
+metatag.metatag_tag.dcterms_is_referenced_by:
+  type: label
+  label: 'Dublin Core: Is Referenced By'
+metatag.metatag_tag.dcterms_is_replaced_by:
+  type: label
+  label: 'Dublin Core: Is Replaced By'
+metatag.metatag_tag.dcterms_is_required_by:
+  type: label
+  label: 'Dublin Core: Is Required By'
+metatag.metatag_tag.dcterms_issued:
+  type: label
+  label: 'Dublin Core: Date Issued'
+metatag.metatag_tag.dcterms_is_version_of:
+  type: label
+  label: 'Dublin Core: Is Version Of'
+metatag.metatag_tag.dcterms_license:
+  type: label
+  label: 'Dublin Core: License'
+metatag.metatag_tag.dcterms_mediator:
+  type: label
+  label: 'Dublin Core: Mediator'
+metatag.metatag_tag.dcterms_medium:
+  type: label
+  label: 'Dublin Core: Medium'
+metatag.metatag_tag.dcterms_modified:
+  type: label
+  label: 'Dublin Core: Date Modified'
+metatag.metatag_tag.dcterms_provenance:
+  type: label
+  label: 'Dublin Core: Provenance'
+metatag.metatag_tag.dcterms_references:
+  type: label
+  label: 'Dublin Core: References'
+metatag.metatag_tag.dcterms_replaces:
+  type: label
+  label: 'Dublin Core: Replaces'
+metatag.metatag_tag.dcterms_requires:
+  type: label
+  label: 'Dublin Core: Requires'
+metatag.metatag_tag.dcterms_rights_holder:
+  type: label
+  label: 'Dublin Core: Rights Holder'
+metatag.metatag_tag.dcterms_spatial:
+  type: label
+  label: 'Dublin Core: Spatial Coverage'
+metatag.metatag_tag.dcterms_table_of_contents:
+  type: label
+  label: 'Dublin Core: Table Of Contents'
+metatag.metatag_tag.dcterms_temporal:
+  type: label
+  label: 'Dublin Core: Temporal Coverage'
+metatag.metatag_tag.dcterms_valid:
+  type: label
+  label: 'Dublin Core: Date Valid'

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/metatag_dc_advanced.info.yml

@@ -0,0 +1,14 @@
+name: 'Metatag: Dublin Core Advanced'
+type: module
+description: 'Provides forty additional meta tags from the <a href="http://dublincore.org/">Dublin Core Metadata Institute</a>.'
+# core: 8.x
+package: SEO
+dependencies:
+  - metatag:metatag
+  - metatag:metatag_dc
+
+# Information added by Drupal.org packaging script on 2018-08-31
+version: '8.x-1.7'
+core: '8.x'
+project: 'metatag'
+datestamp: 1535726412

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/metatag_dc_advanced.module

@@ -0,0 +1,24 @@
+<?php
+
+/**
+ * @file
+ * Contains metatag_dc_advanced.module.
+ */
+
+use Drupal\Core\Routing\RouteMatchInterface;
+
+/**
+ * Implements hook_help().
+ */
+function metatag_dc_advanced_help($route_name, RouteMatchInterface $route_match) {
+  switch ($route_name) {
+    // Main module help for the metatag_dc_advanced module.
+    case 'help.page.metatag_dc_advanced':
+      $output = '';
+      $output .= '<h3>' . t('About') . '</h3>';
+      $output .= '<p>' . t('Provides forty additional meta tags from the <a href="http://dublincore.org/">Dublin Core Metadata Institute</a>.') . '</p>';
+      return $output;
+
+    default:
+  }
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Group/DublinCoreAdvanced.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Group;
+
+use Drupal\metatag\Plugin\metatag\Group\GroupBase;
+
+/**
+ * Provides a plugin for the 'Dublin Core Additional Tags' meta tag group.
+ *
+ * @MetatagGroup(
+ *   id = "dublin_core_advanced",
+ *   label = @Translation("Dublin Core Additional Tags"),
+ *   description = @Translation("These tags are not part of the Metadata Element Set but may be useful for certain scenarios."),
+ *   weight = 4,
+ * )
+ */
+class DublinCoreAdvanced extends GroupBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/AbstractTag.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "Abstract" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_abstract",
+ *   label = @Translation("Abstract"),
+ *   description = @Translation("A summary of the resource."),
+ *   name = "dcterms.abstract",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AbstractTag extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/AccessRights.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "accessRights" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_access_rights",
+ *   label = @Translation("Access Rights"),
+ *   description = @Translation("Information about who can access the resource or an indication of its security status. Access Rights may include information regarding access or restrictions based on privacy, security, or other policies."),
+ *   name = "dcterms.accessRights",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AccessRights extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/AccrualMethod.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "accrualMethod" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_accrual_method",
+ *   label = @Translation("Accrual Method"),
+ *   description = @Translation("The method by which items are added to a collection."),
+ *   name = "dcterms.accrualMethod",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AccrualMethod extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/AccrualPeriodicity.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "accrualPeriodicity" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_accrual_periodicity",
+ *   label = @Translation("Accrual Periodicity"),
+ *   description = @Translation("The frequency with which items are added to a collection."),
+ *   name = "dcterms.accrualPeriodicity",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AccrualPeriodicity extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/AccrualPolicy.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "accrualPolicy" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_accrual_policy",
+ *   label = @Translation("Accrual Policy"),
+ *   description = @Translation("The policy governing the addition of items to a collection."),
+ *   name = "dcterms.accrualPolicy",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class AccrualPolicy extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/Alternative.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "alternative" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_alternative",
+ *   label = @Translation("Alternative Title"),
+ *   description = @Translation("An alternative name for the resource. The distinction between titles and alternative titles is application-specific."),
+ *   name = "dcterms.alternative",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Alternative extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/Audience.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "audience" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_audience",
+ *   label = @Translation("Audience"),
+ *   description = @Translation("A class of entity for whom the resource is intended or useful."),
+ *   name = "dcterms.audience",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Audience extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/Available.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "available" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_available",
+ *   label = @Translation("Date Available"),
+ *   description = @Translation("Date (often a range) that the resource became or will become available."),
+ *   name = "dcterms.available",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Available extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/BibliographicCitation.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "bibliographicCitation" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_bibliographic_citation",
+ *   label = @Translation("Bibliographic Citation"),
+ *   description = @Translation("A bibliographic reference for the resource. Recommended practice is to include sufficient bibliographic detail to identify the resource as unambiguously as possible."),
+ *   name = "dcterms.bibliographicCitation",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class BibliographicCitation extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/ConformsTo.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "conformsTo" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_conforms_to",
+ *   label = @Translation("Conforms To"),
+ *   description = @Translation("An established standard to which the described resource conforms."),
+ *   name = "dcterms.conformsTo",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class ConformsTo extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/Created.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "created" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_created",
+ *   label = @Translation("Date Created"),
+ *   description = @Translation("Date of creation of the resource."),
+ *   name = "dcterms.created",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class Created extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/DateAccepted.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "dateAccepted" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_date_accepted",
+ *   label = @Translation("Date Accepted"),
+ *   description = @Translation("Date of acceptance of the resource. Examples of resources to which a Date Accepted may be relevant are a thesis (accepted by a university department) or an article (accepted by a journal)."),
+ *   name = "dcterms.dateAccepted",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class DateAccepted extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/DateCopyrighted.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "dateCopyrighted" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_date_copyrighted",
+ *   label = @Translation("Date Copyrighted"),
+ *   description = @Translation("Date of copyright."),
+ *   name = "dcterms.dateCopyrighted",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class DateCopyrighted extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/DateSubmitted.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "dateSubmitted" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_date_submitted",
+ *   label = @Translation("Date Submitted"),
+ *   description = @Translation("Date of submission of the resource. Examples of resources to which a Date Submitted may be relevant are a thesis (submitted to a university department) or an article (submitted to a journal)."),
+ *   name = "dcterms.dateSubmitted",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class DateSubmitted extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}

sites/all/modules/contrib/admin/metatag/metatag_dc_advanced/src/Plugin/metatag/Tag/EducationLevel.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\metatag_dc_advanced\Plugin\metatag\Tag;
+
+use Drupal\metatag\Plugin\metatag\Tag\MetaNameBase;
+
+/**
+ * The Dublin Core "educationLevel" meta tag.
+ *
+ * @MetatagTag(
+ *   id = "dcterms_education_level",
+ *   label = @Translation("Audience Education Level"),
+ *   description = @Translation("A class of entity, defined in terms of progression through an educational or training context, for which the described resource is intended."),
+ *   name = "dcterms.educationLevel",
+ *   group = "dublin_core_advanced",
+ *   weight = 6,
+ *   type = "label",
+ *   secure = FALSE,
+ *   multiple = FALSE
+ * )
+ */
+class EducationLevel extends MetaNameBase {
+  // Nothing here yet. Just a placeholder class for a plugin.
+}