first import

sites/all/modules/ctools/plugins/access/string_equal.inc

@@ -0,0 +1,94 @@
+<?php
+
+/**
+ * @file
+ * Plugin to provide access control/visibility based on specified context string matching user-specified string
+ */
+
+$plugin = array(
+  'title' => t("String: comparison"),
+  'description' => t('Control access by string match.'),
+  'callback' => 'ctools_string_equal_ctools_access_check',
+  'settings form' => 'ctools_string_equal_ctools_access_settings',
+  'summary' => 'ctools_string_equal_ctools_access_summary',
+  'required context' => new ctools_context_required(t('String'), 'string'),
+  'defaults' => array('operator' => '=', 'value' => '', 'case' => FALSE),
+);
+
+/**
+ * Settings form
+ */
+function ctools_string_equal_ctools_access_settings($form, &$form_state, $conf) {
+  $form['settings']['operator'] = array(
+    '#type' => 'radios',
+    '#title' => t('Operator'),
+    '#options' => array(
+      '=' => t('Equal'),
+      '!=' => t('Not equal'),
+      'regex' => t('Regular expression'),
+      '!regex' => t('Not equal to regular expression'),
+    ),
+    '#default_value' => $conf['operator'],
+    '#description' => t('If using a regular expression, you should enclose the pattern in slashes like so: <em>/foo/</em>. If you need to compare against slashes you can use another character to enclose the pattern, such as @. See <a href="http://www.php.net/manual/en/reference.pcre.pattern.syntax.php">PHP regex documentation</a> for more.'),
+  );
+
+  $form['settings']['value'] = array(
+    '#type' => 'textfield',
+    '#title' => t('String'),
+    '#default_value' => $conf['value'],
+  );
+
+  $form['settings']['case'] = array(
+    '#type' => 'checkbox',
+    '#title' => t('Case sensitive'),
+    '#default_value' => $conf['case'],
+  );
+  return $form;
+}
+
+/**
+ * Check for access
+ */
+function ctools_string_equal_ctools_access_check($conf, $context) {
+  if (empty($context) || empty($context->data)) {
+    $string = '';
+  }
+  else {
+    $string = $context->data;
+  }
+
+  $value = $conf['value'];
+  if (empty($conf['case'])) {
+    $string = drupal_strtolower($string);
+    $value = drupal_strtolower($value);
+  }
+
+  switch ($conf['operator']) {
+    case '=':
+      return $string === $value;
+    case '!=':
+      return $string !== $value;
+    case 'regex':
+      return preg_match($value, $string);
+    case '!regex':
+      return !preg_match($value, $string);
+  }
+}
+
+/**
+ * Provide a summary description based upon the specified context
+ */
+function ctools_string_equal_ctools_access_summary($conf, $context) {
+  $values = array('@identifier' => $context->identifier, '@value' => $conf['value']);
+  switch ($conf['operator']) {
+    case '=':
+      return t('@identifier is "@value"', $values);
+    case '!=':
+      return t('@identifier is not "@value"', $values);
+    case 'regex':
+      return t('@identifier matches "@value"', $values);
+    case '!regex':
+      return t('@identifier does not match "@value"', $values);
+  }
+}
+