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@ -79,6 +79,19 @@ function islandora_is_valid_pid($pid) {
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return drupal_strlen(trim($pid)) <= 64 && preg_match('/^([A-Za-z0-9]|-|\.)+:(([A-Za-z0-9])|-|\.|~|_|(%[0-9A-F]{2}))+$/', trim($pid)); |
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} |
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/** |
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* Checks if the given namespace is valid. |
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* |
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* @param string $namespace |
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* The namespace to check without the ":" character. |
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* |
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* @return bool |
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* TRUE if valid, FALSE otherwise. |
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*/ |
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function islandora_is_valid_namespace($namespace) { |
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return drupal_strlen(trim($namespace)) <= 64 && preg_match('/^([A-Za-z0-9]|-|\.)+$/', trim($namespace)); |
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} |
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/** |
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* Checks if the given datastream id is valid. |
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* |
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@ -560,9 +573,10 @@ function islandora_directory_exists_message($path) {
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/** |
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* Gets the default value for the given system_settings_form() element. |
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* |
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* Checks the $form_state for the default value if not it checks variable_get(). |
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* Assumes #tree is FALSE. This is only really required for elements that utilize |
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* AJAX, as their value can change before the submit actually takes place. |
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* Checks the $form_state for the default value if not it checks |
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* variable_get(). Assumes #tree is FALSE. This is only really required |
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* for elements that utilize AJAX, as their value can change before the |
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* submit actually takes place. |
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* |
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* @param string $name |
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* The name of the system settings form element. |
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@ -579,10 +593,11 @@ function islandora_system_settings_form_default_value($name, $default_value, arr
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} |
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/** |
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* Returns basic information about DS-COMPOSITE-MODEL |
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* Returns basic information about DS-COMPOSITE-MODEL. |
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* |
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* @param string $pid |
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* pid of content model containing DS_COMP stream |
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* PID of content model containing DS_COMP stream. |
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* |
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* @return array |
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* array of values in the following form |
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* |
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@ -607,9 +622,7 @@ function islandora_system_settings_form_default_value($name, $default_value, arr
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* [optional] => true |
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* [mimetype] => application/rdf+xml |
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* ) |
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* |
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*/ |
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function islandora_get_comp_ds_mappings($pid) { |
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$cm_object = islandora_object_load($pid); |
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if (!isset($cm_object) || !isset($cm_object['DS-COMPOSITE-MODEL'])) { |
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@ -632,3 +645,96 @@ function islandora_get_comp_ds_mappings($pid) {
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} |
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return $mappings; |
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} |
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/** |
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* Checks that the given/current account has all the given permissions. |
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* |
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* @param array $perms |
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* The permissions to check. |
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* @param mixed $account |
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* (optional) The account to check, if not given use currently logged in user. |
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* |
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* @return bool |
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* TRUE if the account has all the given permissions, FALSE otherwise. |
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*/ |
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function islandora_user_access_all(array $perms, $account = NULL) { |
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foreach ($perms as $perm) { |
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if (!user_access($perm, $account)) { |
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return FALSE; |
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} |
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} |
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return TRUE; |
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} |
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/** |
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* Checks that the given/current account has at one of the given permissions. |
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* |
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* @param array $perms |
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* The permissions to check. |
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* @param mixed $account |
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* (optional) The account to check, if not given use currently logged in user. |
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* |
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* @return bool |
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* TRUE if the account has at least one of the given permissions, FALSE |
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* otherwise. |
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*/ |
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function islandora_user_access_any(array $perms, $account = NULL) { |
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foreach ($perms as $perm) { |
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if (user_access($perm, $account)) { |
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return TRUE; |
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} |
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} |
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return FALSE; |
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} |
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/** |
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* Gets the list of allowed namespaces as defined by 'islandora_pids_allowed'. |
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* |
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* @return array |
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* The list of namespaces striped of trailing ":" characters. |
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*/ |
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function islandora_get_allowed_namespaces() { |
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$matches = array(); |
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$allowed_namespaces = variable_get('islandora_pids_allowed', 'default: demo: changeme: islandora:'); |
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preg_match_all('/([A-Za-z0-9-\.]+):/', $allowed_namespaces, $matches); |
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return $matches[1]; |
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} |
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/** |
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* Gets a list of all existing content models. |
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* |
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* If 'islandora_namespace_restriction_enforced' is set to true only return |
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* content models in the allowed namespace. |
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* |
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* @param bool $ignore_system_namespace |
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* Ignore content models in the 'fedora-system' namespace. |
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* |
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* @return array |
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* An associative array of all existing content models. |
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* - pid: The PID of the content model object. |
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* - pid: The PID of the content model object. |
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* - label: The label of the content model object. |
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*/ |
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function islandora_get_content_models($ignore_system_namespace = TRUE) { |
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module_load_include('inc', 'islandora', 'includes/utilities'); |
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$tuque = islandora_get_tuque_connection(); |
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$query = 'select $object $label from <#ri> |
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where ($object <fedora-model:label> $label |
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and ($object <fedora-model:hasModel> <info:fedora/fedora-system:ContentModel-3.0> |
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or $object <fedora-rels-ext:isMemberOfCollection> <info:fedora/islandora:ContentModelsCollection>) |
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and $object <fedora-model:state> <info:fedora/fedora-system:def/model#Active>) |
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order by $label'; |
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$content_models = array(); |
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$results = $tuque->repository->ri->itqlQuery($query, 'unlimited'); |
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foreach ($results as $result) { |
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$content_model = $result['object']['value']; |
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$label = $result['label']['value']; |
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$namespace = islandora_get_namespace($content_model); |
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$ignore = $ignore_system_namespace && $namespace == 'fedora-system'; |
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$ignore |= !islandora_namespace_accessible($namespace); |
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if (!$ignore) { |
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$content_models[$content_model] = array('pid' => $content_model, 'label' => $label); |
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} |
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} |
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return $content_models; |
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} |
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jonathangreen
12 years ago