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1 | <?php |
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2 | // This file is part of Moodle - http://moodle.org/ |
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3 | // |
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4 | // Moodle is free software: you can redistribute it and/or modify |
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5 | // it under the terms of the GNU General Public License as published by |
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6 | // the Free Software Foundation, either version 3 of the License, or |
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7 | // (at your option) any later version. |
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8 | // |
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9 | // Moodle is distributed in the hope that it will be useful, |
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10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | // GNU General Public License for more details. |
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13 | // |
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14 | // You should have received a copy of the GNU General Public License |
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15 | // along with Moodle. If not, see <http://www.gnu.org/licenses/>. |
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16 | |||
17 | /** |
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18 | * BigBlueButtonBN external API |
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19 | * |
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20 | * @package mod_bigbluebuttonbn |
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21 | * @category external |
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22 | * @copyright 2018 onwards, Blindside Networks Inc |
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23 | * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later |
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24 | */ |
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25 | |||
26 | defined('MOODLE_INTERNAL') || die; |
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27 | |||
28 | require_once("$CFG->libdir/externallib.php"); |
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29 | |||
30 | /** |
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31 | * BigBlueButtonBN external functions |
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32 | * |
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33 | * @package mod_bigbluebuttonbn |
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34 | * @category external |
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35 | * @copyright 2018 onwards, Blindside Networks Inc |
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36 | * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later |
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37 | */ |
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38 | class mod_bigbluebuttonbn_external extends external_api { |
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39 | |||
40 | /** |
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41 | * Returns description of method parameters |
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42 | * |
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43 | * @return external_function_parameters |
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44 | * @since Moodle 3.0 |
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45 | */ |
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46 | public static function view_bigbluebuttonbn_parameters() { |
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47 | return new external_function_parameters( |
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48 | array( |
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49 | 'bigbluebuttonbnid' => new external_value(PARAM_INT, 'bigbluebuttonbn instance id') |
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50 | ) |
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51 | ); |
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52 | } |
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53 | |||
54 | /** |
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55 | * Trigger the course module viewed event and update the module completion status. |
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56 | * |
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57 | * @param int $bigbluebuttonbnid the bigbluebuttonbn instance id |
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58 | * @return array of warnings and status result |
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59 | * @since Moodle 3.0 |
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60 | * @throws moodle_exception |
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61 | */ |
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62 | public static function view_bigbluebuttonbn($bigbluebuttonbnid) { |
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63 | global $DB, $CFG; |
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64 | require_once($CFG->dirroot . "/mod/bigbluebuttonbn/lib.php"); |
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65 | |||
66 | $params = self::validate_parameters(self::view_bigbluebuttonbn_parameters(), |
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67 | array( |
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68 | 'bigbluebuttonbnid' => $bigbluebuttonbnid |
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69 | )); |
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70 | $warnings = array(); |
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71 | |||
72 | // Request and permission validation. |
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73 | $bigbluebuttonbn = $DB->get_record('bigbluebuttonbn', array('id' => $params['bigbluebuttonbnid']), '*', MUST_EXIST); |
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74 | list($course, $cm) = get_course_and_cm_from_instance($bigbluebuttonbn, 'bigbluebuttonbn'); |
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75 | |||
76 | $context = context_module::instance($cm->id); |
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77 | self::validate_context($context); |
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78 | |||
79 | require_capability('mod/bigbluebuttonbn:view', $context); |
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80 | |||
81 | // Call the bigbluebuttonbn/lib API. |
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82 | bigbluebuttonbn_view($bigbluebuttonbn, $course, $cm, $context); |
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83 | |||
84 | $result = array(); |
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85 | $result['status'] = true; |
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86 | $result['warnings'] = $warnings; |
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87 | return $result; |
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88 | } |
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89 | |||
90 | /** |
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91 | * Returns description of method result value |
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92 | * |
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93 | * @return external_description |
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94 | * @since Moodle 3.0 |
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95 | */ |
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96 | public static function view_bigbluebuttonbn_returns() { |
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97 | return new external_single_structure( |
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98 | array( |
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99 | 'status' => new external_value(PARAM_BOOL, 'status: true if success'), |
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100 | 'warnings' => new external_warnings() |
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101 | ) |
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102 | ); |
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103 | } |
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104 | |||
105 | /** |
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106 | * Describes the parameters for get_bigbluebuttonbns_by_courses. |
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107 | * |
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108 | * @return external_function_parameters |
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109 | * @since Moodle 3.3 |
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110 | */ |
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111 | public static function get_bigbluebuttonbns_by_courses_parameters() { |
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112 | return new external_function_parameters ( |
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113 | array( |
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114 | 'courseids' => new external_multiple_structure( |
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115 | new external_value(PARAM_INT, 'Course id'), 'Array of course ids', VALUE_DEFAULT, array() |
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116 | ), |
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117 | ) |
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118 | ); |
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119 | } |
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120 | |||
121 | /** |
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122 | * Returns a list of bigbluebuttonbns in a provided list of courses. |
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123 | * If no list is provided all bigbluebuttonbns that the user can view will be returned. |
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124 | * |
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125 | * @param array $courseids course ids |
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126 | * @return array of warnings and bigbluebuttonbns |
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127 | * @since Moodle 3.3 |
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128 | */ |
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129 | public static function get_bigbluebuttonbns_by_courses($courseids = array()) { |
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130 | |||
131 | $warnings = array(); |
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132 | $returnedbigbluebuttonbns = array(); |
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133 | |||
134 | $params = array( |
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135 | 'courseids' => $courseids, |
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136 | ); |
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137 | $params = self::validate_parameters(self::get_bigbluebuttonbns_by_courses_parameters(), $params); |
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138 | |||
139 | $mycourses = array(); |
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140 | if (empty($params['courseids'])) { |
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141 | $mycourses = enrol_get_my_courses(); |
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142 | $params['courseids'] = array_keys($mycourses); |
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143 | } |
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144 | |||
145 | // Ensure there are courseids to loop through. |
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146 | if (!empty($params['courseids'])) { |
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147 | |||
148 | list($courses, $warnings) = external_util::validate_courses($params['courseids'], $mycourses); |
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149 | |||
150 | // Get the bigbluebuttonbns in this course, this function checks users visibility permissions. |
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151 | // We can avoid then additional validate_context calls. |
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152 | $bigbluebuttonbns = get_all_instances_in_courses("bigbluebuttonbn", $courses); |
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153 | foreach ($bigbluebuttonbns as $bigbluebuttonbn) { |
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154 | $context = context_module::instance($bigbluebuttonbn->coursemodule); |
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155 | // Entry to return. |
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156 | $bigbluebuttonbn->name = external_format_string($bigbluebuttonbn->name, $context->id); |
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157 | |||
158 | list($bigbluebuttonbn->intro, $bigbluebuttonbn->introformat) = external_format_text($bigbluebuttonbn->intro, |
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159 | $bigbluebuttonbn->introformat, $context->id, 'mod_bigbluebuttonbn', 'intro', null); |
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160 | $bigbluebuttonbn->introfiles = external_util::get_area_files($context->id, |
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161 | 'mod_bigbluebuttonbn', 'intro', false, false); |
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162 | |||
163 | $returnedbigbluebuttonbns[] = $bigbluebuttonbn; |
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164 | } |
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165 | } |
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166 | |||
167 | $result = array( |
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168 | 'bigbluebuttonbns' => $returnedbigbluebuttonbns, |
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169 | 'warnings' => $warnings |
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170 | ); |
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171 | return $result; |
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172 | } |
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173 | |||
174 | /** |
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175 | * Describes the get_bigbluebuttonbns_by_courses return value. |
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176 | * |
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177 | * @return external_single_structure |
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178 | * @since Moodle 3.3 |
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179 | */ |
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180 | public static function get_bigbluebuttonbns_by_courses_returns() { |
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181 | return new external_single_structure( |
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182 | array( |
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183 | 'bigbluebuttonbns' => new external_multiple_structure( |
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184 | new external_single_structure( |
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185 | array( |
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186 | 'id' => new external_value(PARAM_INT, 'Module id'), |
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187 | 'coursemodule' => new external_value(PARAM_INT, 'Course module id'), |
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188 | 'course' => new external_value(PARAM_INT, 'Course id'), |
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189 | 'name' => new external_value(PARAM_RAW, 'Name'), |
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190 | 'intro' => new external_value(PARAM_RAW, 'Description'), |
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191 | 'meetingid' => new external_value(PARAM_RAW, 'Meeting id'), |
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192 | 'introformat' => new external_format_value('intro', 'Summary format'), |
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193 | 'introfiles' => new external_files('Files in the introduction text'), |
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194 | 'timemodified' => new external_value(PARAM_INT, 'Last time the instance was modified'), |
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195 | 'section' => new external_value(PARAM_INT, 'Course section id'), |
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196 | 'visible' => new external_value(PARAM_INT, 'Module visibility'), |
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197 | 'groupmode' => new external_value(PARAM_INT, 'Group mode'), |
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198 | 'groupingid' => new external_value(PARAM_INT, 'Grouping id'), |
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199 | ) |
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200 | ) |
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201 | ), |
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202 | 'warnings' => new external_warnings(), |
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203 | ) |
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204 | ); |
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205 | } |
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206 | |||
207 | /** |
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208 | * Returns description of method parameters |
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209 | * |
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210 | * @return external_function_parameters |
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211 | * @since Moodle 3.0 |
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212 | */ |
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213 | public static function can_join_parameters() { |
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214 | return new external_function_parameters( |
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215 | array( |
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216 | 'cmid' => new external_value(PARAM_INT, 'course module id', VALUE_REQUIRED) |
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217 | ) |
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218 | ); |
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219 | } |
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220 | |||
221 | /** |
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222 | * This will check if current user can join the session from this module |
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223 | * @param int $cmid |
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224 | * @throws coding_exception |
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225 | * @throws dml_exception |
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226 | */ |
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227 | public static function can_join($cmid) { |
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228 | global $SESSION, $CFG; |
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229 | require_once($CFG->dirroot . "/mod/bigbluebuttonbn/locallib.php"); |
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230 | |||
231 | $params = self::validate_parameters(self::can_join_parameters(), |
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232 | array( |
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233 | 'cmid' => $cmid |
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234 | )); |
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235 | $canjoin = \mod_bigbluebuttonbn\locallib\bigbluebutton::can_join_meeting($cmid); |
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236 | $canjoin['cmid'] = $cmid; |
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237 | return $canjoin; |
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238 | } |
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239 | |||
240 | /** |
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241 | * Return value for can join function |
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242 | * |
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243 | * @return external_single_structure |
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244 | * @since Moodle 3.3 |
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245 | */ |
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246 | public static function can_join_returns() { |
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247 | return new external_single_structure( |
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248 | array( |
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249 | 'can_join' => new external_value(PARAM_BOOL, 'Can join session'), |
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250 | 'message' => new external_value(PARAM_RAW, 'Message if we cannot join', VALUE_OPTIONAL), |
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251 | 'cmid' => new external_value(PARAM_INT, 'course module id', VALUE_REQUIRED) |
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252 | ) |
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253 | ); |
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254 | } |
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255 | } |
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256 |
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.