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1 <?php
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2
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3 /**
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4 * @file
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5 * Plugin to provide access control based upon term vocabulary
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6 */
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7
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8 /**
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9 * Plugins are described by creating a $plugin array which will be used
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10 * by the system that includes this file.
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11 */
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12 $plugin = array(
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13 'title' => t("Taxonomy: vocabulary"),
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14 'description' => t('Control access by vocabulary.'),
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15 'callback' => 'ctools_term_vocabulary_ctools_access_check',
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16 'default' => array('vids' => array()),
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17 'settings form' => 'ctools_term_vocabulary_ctools_access_settings',
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18 'settings form submit' => 'ctools_term_vocabulary_ctools_access_settings_submit',
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19 'summary' => 'ctools_term_vocabulary_ctools_access_summary',
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20 'required context' => new ctools_context_required(t('Vocabulary'), array('taxonomy_term', 'terms', 'taxonomy_vocabulary')),
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21 );
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22
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23 /**
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24 * Settings form for the 'by term_vocabulary' access plugin
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25 */
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26 function ctools_term_vocabulary_ctools_access_settings($form, &$form_state, $conf) {
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27 $options = array();
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28 $vocabularies = taxonomy_get_vocabularies();
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29 foreach ($vocabularies as $voc) {
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30 $options[$voc->vid] = check_plain($voc->name);
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31 }
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32
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33 $form['settings']['vids'] = array(
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34 '#type' => 'checkboxes',
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35 '#title' => t('Vocabularies'),
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36 '#options' => $options,
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37 '#description' => t('Only the checked vocabularies will be valid.'),
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38 '#default_value' => $conf['vids'],
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39 );
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40 return $form;
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41 }
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42
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43 /**
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44 * Compress the term_vocabularys allowed to the minimum.
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45 */
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46 function ctools_term_vocabulary_ctools_access_settings_submit($form, &$form_state) {
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47 $form_state['values']['settings']['vids'] = array_filter($form_state['values']['settings']['vids']);
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48 }
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49
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50 /**
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51 * Check for access.
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52 */
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53 function ctools_term_vocabulary_ctools_access_check($conf, $context) {
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54 // As far as I know there should always be a context at this point, but this
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55 // is safe.
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56 if (empty($context) || empty($context->data) || empty($context->data->vid)) {
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57 return FALSE;
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58 }
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59
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60 if (array_filter($conf['vids']) && empty($conf['vids'][$context->data->vid])) {
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61 return FALSE;
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62 }
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63
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64 return TRUE;
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65 }
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66
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67 /**
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68 * Provide a summary description based upon the checked term_vocabularys.
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69 */
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70 function ctools_term_vocabulary_ctools_access_summary($conf, $context) {
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71 if (!isset($conf['type'])) {
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72 $conf['type'] = array();
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73 }
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74 $vocabularies = taxonomy_get_vocabularies();
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75
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76 $names = array();
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77 foreach (array_filter($conf['vids']) as $vid) {
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78 $names[] = check_plain($vocabularies[$vid]->name);
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79 }
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80
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81 if (empty($names)) {
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82 return t('@identifier is any vocabulary', array('@identifier' => $context->identifier));
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83 }
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84
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85 return format_plural(count($names), '@identifier vocabulary is "@vids"', '@identifier vocabulary is one of "@vids"', array('@vids' => implode(', ', $names), '@identifier' => $context->identifier));
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86 }
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87
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