mirror of
https://github.com/moodle/moodle.git
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422 lines
13 KiB
PHP
422 lines
13 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Recourse module like helper functions
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*
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* @package moodlecore
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* @copyright 2009 Petr Skoda (http://skodak.org)
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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/** Try the best way */
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define('RESOURCELIB_DISPLAY_AUTO', 0);
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/** Display using object tag */
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define('RESOURCELIB_DISPLAY_EMBED', 1);
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/** Display inside frame */
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define('RESOURCELIB_DISPLAY_FRAME', 2);
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/** Display normal link in new window */
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define('RESOURCELIB_DISPLAY_NEW', 3);
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/** Force download of file instead of display */
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define('RESOURCELIB_DISPLAY_DOWNLOAD', 4);
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/** Open directly */
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define('RESOURCELIB_DISPLAY_OPEN', 5);
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/** Open in "emulated" pop-up without navigation */
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define('RESOURCELIB_DISPLAY_POPUP', 6);
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/** Legacy files not needed or new resource */
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define('RESOURCELIB_LEGACYFILES_NO', 0);
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/** Legacy files conversion marked as completed */
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define('RESOURCE_LEGACYYFILES_DONE', 1);
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/** Legacy files conversion in progress*/
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define('RESOURCELIB_LEGACYFILES_ACTIVE', 2);
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/**
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* Returns list of available display options
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* @param array $enabled list of options enabled in module configuration
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* @param int $current current dispaly options for existing instances
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* @return array of key=>name pairs
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*/
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function resourcelib_get_displayoptions(array $enabled, $current=null) {
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if (is_number($current)) {
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$enabled[] = $current;
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}
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$options = array(RESOURCELIB_DISPLAY_AUTO => get_string('displayauto', 'resource'),
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RESOURCELIB_DISPLAY_EMBED => get_string('displayembed', 'resource'),
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RESOURCELIB_DISPLAY_FRAME => get_string('displayframe', 'resource'),
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RESOURCELIB_DISPLAY_NEW => get_string('displaynew', 'resource'),
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RESOURCELIB_DISPLAY_DOWNLOAD => get_string('displaydownload', 'resource'),
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RESOURCELIB_DISPLAY_OPEN => get_string('displayopen', 'resource'),
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RESOURCELIB_DISPLAY_POPUP => get_string('displaypopup', 'resource'));
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$result = array();
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foreach ($options as $key=>$value) {
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if (in_array($key, $enabled)) {
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$result[$key] = $value;
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}
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}
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if (empty($result)) {
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// there should be always something in case admin misconfigures module
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$result[RESOURCELIB_DISPLAY_OPEN] = $options[RESOURCELIB_DISPLAY_OPEN];
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}
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return $result;
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}
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/**
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* Tries to guess correct mimetype for arbitrary URL
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* @param string $fullurl
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* @return string mimetype
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*/
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function resourcelib_guess_url_mimetype($fullurl) {
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global $CFG;
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require_once("$CFG->libdir/filelib.php");
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if (preg_match("|^(.*)/[a-z]*file.php(\?file=)?(/[^&\?]*)|", $fullurl, $matches)) {
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// remove the special moodle file serving hacks so that the *file.php is ignored
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$fullurl = $matches[1].$matches[3];
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}
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if (strpos($fullurl, '.php')){
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// we do not really know what is in general php script
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return 'text/html';
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} else if (substr($fullurl, -1) === '/') {
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// directory index (http://example.com/smaples/)
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return 'text/html';
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} else if (strpos($fullurl, '//') !== false and substr_count($fullurl, '/') == 2) {
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// just a host name (http://example.com), solves Australian servers "audio" problem too
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return 'text/html';
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} else {
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// ok, this finally looks like a real file
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return mimeinfo('type', $fullurl);
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}
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}
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/**
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* Returns image embedding html.
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* @param string $fullurl
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* @param string $title
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* @return string html
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*/
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function resourcelib_embed_image($fullurl, $title) {
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$code = '';
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$code .= '<div class="resourcecontent resourceimg">';
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$code .= "<img title=\"".strip_tags(format_string($title))."\" class=\"resourceimage\" src=\"$fullurl\" alt=\"\" />";
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$code .= '</div>';
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return $code;
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}
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/**
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* Returns mp3 embedding html.
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* @param string $fullurl
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* @param string $title
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* @param string $clicktoopen
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* @return string html
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*/
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function resourcelib_embed_mp3($fullurl, $title, $clicktoopen) {
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global $CFG, $OUTPUT, $PAGE;
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$c = $OUTPUT->resource_mp3player_colors(); // You can set this up in your theme/xxx/config.php
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$c .= '&volText='.get_string('vol', 'resource').'&panText='.get_string('pan','resource');
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$id = 'filter_mp3_'.time(); //we need something unique because it might be stored in text cache
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$ufoargs = array('movie' => $CFG->wwwroot.'/lib/mp3player/mp3player.swf?src='.addslashes_js($fullurl),
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'width' => 600,
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'height' => 70,
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'majorversion' => 6,
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'build' => 40,
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'flashvars' => $c,
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'quality' => 'high');
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// If we have Javascript, use UFO to embed the MP3 player, otherwise depend on plugins
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$code = <<<OET
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<div class="resourcecontent resourcemp3">
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<span class="mediaplugin mediaplugin_mp3" id="$id"></span>
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<noscript>
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<object type="audio/mpeg" data="$fullurl" width="600" height="70">
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<param name="src" value="$fullurl" />
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<param name="quality" value="high" />
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<param name="autoplay" value="true" />
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<param name="autostart" value="true" />
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</object>
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$clicktoopen
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</noscript>
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</div>
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OET;
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$PAGE->requires->yui2_lib('dom');
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$PAGE->requires->js('lib/ufo.js')->in_head();
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$PAGE->requires->js('lib/resourcelib.js')->in_head();
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$code .= $PAGE->requires->data_for_js('FO', $ufoargs)->asap();
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$code .= $PAGE->requires->js_function_call('resourcelib_create_UFO_object', array($id))->asap();
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return $code;
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}
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/**
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* Returns flash video embedding html.
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* @param string $fullurl
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* @param string $title
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* @param string $clicktoopen
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* @return string html
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*/
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function resourcelib_embed_flashvideo($fullurl, $title, $clicktoopen) {
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global $CFG, $PAGE;
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$id = 'filter_flv_'.time(); //we need something unique because it might be stored in text cache
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$ufoargs = array('movie' => $CFG->wwwroot.'/filter/mediaplugin/flvplayer.swf?file='.addslashes_js($fullurl),
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'width' => 600,
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'height' => 400,
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'majorversion' => 6,
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'build' => 40,
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'allowscriptaccess' => 'never',
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'allowfullscreen' => 'true',
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'quality' => 'high');
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// If we have Javascript, use UFO to embed the FLV player, otherwise depend on plugins
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$code = <<<EOT
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<div class="resourcecontent resourceflv">
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<span class="mediaplugin mediaplugin_flv" id="$id"></span>
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<noscript>
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<object type="video/x-flv" data="$fullurl" width="600" height="400">
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<param name="src" value="$fullurl" />
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<param name="quality" value="high" />
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<param name="autoplay" value="true" />
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<param name="autostart" value="true" />
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</object>
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$clicktoopen
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</noscript>
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</div>
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EOT;
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$PAGE->requires->yui2_lib('dom');
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$PAGE->requires->js('lib/ufo.js')->in_head();
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$PAGE->requires->js('lib/resourcelib.js')->in_head();
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$code .= $PAGE->requires->data_for_js('FO', $ufoargs)->asap();
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$code .= $PAGE->requires->js_function_call('resourcelib_create_UFO_object', array($id))->asap();
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return $code;
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}
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/**
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* Returns flash embedding html.
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* @param string $fullurl
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* @param string $title
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* @param string $clicktoopen
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* @return string html
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*/
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function resourcelib_embed_flash($fullurl, $title, $clicktoopen) {
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$code = <<<EOT
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<div class="resourcecontent resourceswf">
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<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000">
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<param name="movie" value="$fullurl" />
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<param name="autoplay" value="true" />
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<param name="loop" value="true" />
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<param name="controller" value="true" />
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<param name="scale" value="aspect" />
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<param name="base" value="." />
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<!--[if !IE]>-->
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<object type="application/x-shockwave-flash" data="$fullurl">
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<param name="controller" value="true" />
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<param name="autoplay" value="true" />
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<param name="loop" value="true" />
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<param name="scale" value="aspect" />
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<param name="base" value="." />
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<!--<![endif]-->
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$clicktoopen
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<!--[if !IE]>-->
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</object>
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<!--<![endif]-->
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</object>
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</div>
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EOT;
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return $code;
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}
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/**
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* Returns ms media embedding html.
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* @param string $fullurl
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* @param string $title
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* @param string $clicktoopen
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* @return string html
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*/
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function resourcelib_embed_mediaplayer($fullurl, $title, $clicktoopen) {
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$code = <<<EOT
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<div class="resourcecontent resourcewmv">
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<object type="video/x-ms-wmv" data="$fullurl">
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<param name="controller" value="true" />
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<param name="autostart" value="true" />
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<param name="src" value="$fullurl" />
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<param name="scale" value="noScale" />
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$clicktoopen
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</object>
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</div>
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EOT;
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return $code;
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}
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/**
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* Returns quicktime embedding html.
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* @param string $fullurl
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* @param string $title
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* @param string $clicktoopen
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* @return string html
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*/
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function resourcelib_embed_quicktime($fullurl, $title, $clicktoopen) {
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$code = <<<EOT
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<div class="resourcecontent resourceqt">
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<object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" codebase="http://www.apple.com/qtactivex/qtplugin.cab">
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<param name="src" value="$fullurl" />
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<param name="autoplay" value="true" />
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<param name="loop" value="true" />
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<param name="controller" value="true" />
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<param name="scale" value="aspect" />
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<!--[if !IE]>-->
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<object type="video/quicktime" data="$fullurl">
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<param name="controller" value="true" />
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<param name="autoplay" value="true" />
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<param name="loop" value="true" />
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<param name="scale" value="aspect" />
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<!--<![endif]-->
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$clicktoopen
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<!--[if !IE]>-->
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</object>
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<!--<![endif]-->
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</object>
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</div>
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EOT;
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return $code;
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}
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/**
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* Returns mpeg embedding html.
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* @param string $fullurl
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* @param string $title
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* @param string $clicktoopen
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* @return string html
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*/
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function resourcelib_embed_mpeg($fullurl, $title, $clicktoopen) {
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$code = <<<EOT
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<div class="resourcecontent resourcempeg">
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<object classid="CLSID:22d6f312-b0f6-11d0-94ab-0080c74c7e95" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsm p2inf.cab#Version=5,1,52,701" type="application/x-oleobject">
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<param name="fileName" value="$fullurl" />
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<param name="autoStart" value="true" />
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<param name="animationatStart" value="true" />
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<param name="transparentatStart" value="true" />
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<param name="showControls" value="true" />
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<param name="Volume" value="-450" />
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<!--[if !IE]>-->
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<object type="video/mpeg" data="$fullurl">
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<param name="controller" value="true" />
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<param name="autostart" value="true" />
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<param name="src" value="$fullurl" />
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<!--<![endif]-->
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$clicktoopen
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<!--[if !IE]>-->
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</object>
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<!--<![endif]-->
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</object>
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</div>
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EOT;
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return $code;
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}
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/**
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* Returns real media embedding html.
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* @param string $fullurl
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* @param string $title
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* @param string $clicktoopen
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* @return string html
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*/
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function resourcelib_embed_real($fullurl, $title, $clicktoopen) {
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$code = <<<EOT
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<div class="resourcecontent resourcerm">
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<object classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width="320" height="240">
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<param name="src" value="$fullurl" />
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<param name="controls" value="All" />
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<!--[if !IE]>-->
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<object type="audio/x-pn-realaudio-plugin" data="$fullurl" width="320" height="240">
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<param name="controls" value="All" />
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<!--<![endif]-->
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$clicktoopen
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<!--[if !IE]>-->
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</object>
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<!--<![endif]-->
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</object>
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</div>
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EOT;
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return $code;
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}
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/**
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* Returns general link or file embedding html.
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* @param string $fullurl
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* @param string $title
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* @param string $clicktoopen
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* @return string html
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*/
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function resourcelib_embed_general($fullurl, $title, $clicktoopen, $mimetype) {
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global $CFG, $PAGE;
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$iframe = false;
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// IE can not embed stuff properly if stored on different server
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// that is why we use iframe instead, unfortunately this tag does not validate
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// in xhtml strict mode
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if ($mimetype === 'text/html' and check_browser_version('MSIE', 5)) {
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if (preg_match('(^https?://[^/]*)', $fullurl, $matches)) {
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if (strpos($CFG->wwwroot, $matches[0]) !== 0) {
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$iframe = true;
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}
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}
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}
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if ($iframe) {
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$code = <<<EOT
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<div class="resourcecontent resourcegeneral">
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<iframe id="resourceobject" src="$fullurl">
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$clicktoopen
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</iframe>
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</div>
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EOT;
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} else {
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$code = <<<EOT
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<div class="resourcecontent resourcegeneral">
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<object id="resourceobject" data="$fullurl" type="$mimetype">
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<param name="src" value="$fullurl" />
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$clicktoopen
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</object>
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</div>
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EOT;
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}
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return $code;
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}
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