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<?php
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/**
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* @file
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* Plugin to provide access control based upon role membership.
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*/
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/**
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* Plugins are described by creating a $plugin array which will be used
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* by the system that includes this file.
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*/
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$plugin = array(
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'title' => t("User: role"),
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'description' => t('Control access by role.'),
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'callback' => 'ctools_role_ctools_access_check',
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'default' => array('rids' => array()),
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'settings form' => 'ctools_role_ctools_access_settings',
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'settings form submit' => 'ctools_role_ctools_access_settings_submit',
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'summary' => 'ctools_role_ctools_access_summary',
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'required context' => new ctools_context_required(t('User'), 'user'),
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);
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/**
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* Settings form for the 'by role' access plugin.
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*/
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function ctools_role_ctools_access_settings($form, &$form_state, $conf) {
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$form['settings']['rids'] = array(
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'#type' => 'checkboxes',
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'#title' => t('Role'),
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'#default_value' => $conf['rids'],
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'#options' => ctools_get_roles(),
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'#description' => t('Only the checked roles will be granted access.'),
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);
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return $form;
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}
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/**
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* Compress the roles allowed to the minimum.
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*/
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function ctools_role_ctools_access_settings_submit($form, &$form_state) {
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$form_state['values']['settings']['rids'] = array_keys(array_filter($form_state['values']['settings']['rids']));
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}
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/**
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* Check for access.
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*/
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function ctools_role_ctools_access_check($conf, $context) {
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// As far as I know there should always be a context at this point, but this
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// is safe.
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if (empty($context) || empty($context->data) || !isset($context->data->roles)) {
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return FALSE;
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}
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$roles = array_keys($context->data->roles);
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$roles[] = $context->data->uid ? DRUPAL_AUTHENTICATED_RID : DRUPAL_ANONYMOUS_RID;
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return (bool) array_intersect($conf['rids'], $roles);
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}
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/**
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* Provide a summary description based upon the checked roles.
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*/
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function ctools_role_ctools_access_summary($conf, $context) {
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if (!isset($conf['rids'])) {
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$conf['rids'] = array();
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}
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$roles = ctools_get_roles();
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$names = array();
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foreach (array_filter($conf['rids']) as $rid) {
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$names[] = check_plain($roles[$rid]);
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}
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if (empty($names)) {
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return t('@identifier can have any role', array('@identifier' => $context->identifier));
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}
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return format_plural(count($names), '@identifier has role "@roles"', '@identifier has one of "@roles"', array('@roles' => implode(', ', $names), '@identifier' => $context->identifier));
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}
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