Commit | Line | Data |
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4317f92f | 1 | <?php |
6de17fde | 2 | ////////////////////////////////////////////////////////////// |
3 | // Media plugin filtering | |
7e64d361 | 4 | // |
5 | // This filter will replace any links to a media file with | |
6de17fde | 6 | // a media plugin that plays that media inline |
7 | // | |
4da85078 | 8 | // To activate this filter, add a line like this to your |
9 | // list of filters in your Filter configuration: | |
6de17fde | 10 | // |
4da85078 | 11 | // filter/mediaplugin/filter.php |
6de17fde | 12 | // |
13 | ////////////////////////////////////////////////////////////// | |
14 | ||
7e64d361 | 15 | /// This is the filtering function itself. It accepts the |
6de17fde | 16 | /// courseid and the text to be filtered (in HTML form). |
17 | ||
7e64d361 | 18 | require_once($CFG->libdir.'/filelib.php'); |
19 | ||
ccc161f8 | 20 | class mediaplugin_filter extends moodle_text_filter { |
21 | private $eolas_fix_applied = false; | |
9e3f34d1 | 22 | function filter($text) { |
82afb587 | 23 | global $CFG, $PAGE; |
9e3f34d1 | 24 | // You should never modify parameters passed to a method or function, it's BAD practice. Create a copy instead. |
25 | // The reason is that you must always be able to refer to the original parameter that was passed. | |
26 | // For this reason, I changed $text = preg_replace(..,..,$text) into $newtext = preg.... (NICOLAS CONNAULT) | |
27 | // Thanks to Pablo Etcheverry for pointing this out! MDL-10177 | |
28 | ||
29 | // We're using the UFO technique for flash to attain XHTML Strict 1.0 | |
30 | // See: http://www.bobbyvandersluis.com/ufo/ | |
31 | if (!is_string($text)) { | |
32 | // non string data can not be filtered anyway | |
33 | return $text; | |
34 | } | |
35 | $newtext = $text; // fullclone is slow and not needed here | |
36 | ||
37 | if ($CFG->filter_mediaplugin_enable_mp3) { | |
38 | $search = '/<a.*?href="([^<]+\.mp3)"[^>]*>.*?<\/a>/is'; | |
39 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_mp3_callback', $newtext); | |
40 | } | |
41 | ||
42 | if ($CFG->filter_mediaplugin_enable_swf) { | |
43 | $search = '/<a.*?href="([^<]+\.swf)(\?d=([\d]{1,3}%?)x([\d]{1,3}%?))?"[^>]*>.*?<\/a>/is'; | |
44 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_swf_callback', $newtext); | |
45 | } | |
46 | ||
47 | if ($CFG->filter_mediaplugin_enable_flv) { | |
48 | $search = '/<a.*?href="([^<]+\.flv)(\?d=([\d]{1,3}%?)x([\d]{1,3}%?))?"[^>]*>.*?<\/a>/is'; | |
49 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_flv_callback', $newtext); | |
50 | } | |
51 | ||
52 | if ($CFG->filter_mediaplugin_enable_mov) { | |
53 | $search = '/<a.*?href="([^<]+\.mov)(\?d=([\d]{1,3}%?)x([\d]{1,3}%?))?"[^>]*>.*?<\/a>/is'; | |
54 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_qt_callback', $newtext); | |
46936592 | 55 | |
56 | $search = '/<a.*?href="([^<]+\.mp4)(\?d=([\d]{1,4}%?)x([\d]{1,4}%?))?"[^>]*>.*?<\/a>/is'; | |
57 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_qt_callback', $newtext); | |
58 | ||
59 | $search = '/<a.*?href="([^<]+\.m4v)(\?d=([\d]{1,4}%?)x([\d]{1,4}%?))?"[^>]*>.*?<\/a>/is'; | |
60 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_qt_callback', $newtext); | |
a184479a | 61 | |
62 | $search = '/<a.*?href="([^<]+\.m4a)(\?d=([\d]{1,4}%?)x([\d]{1,4}%?))?"[^>]*>.*?<\/a>/is'; | |
63 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_qt_callback', $newtext); | |
9e3f34d1 | 64 | } |
65 | ||
66 | if ($CFG->filter_mediaplugin_enable_wmv) { | |
67 | $search = '/<a.*?href="([^<]+\.wmv)(\?d=([\d]{1,3}%?)x([\d]{1,3}%?))?"[^>]*>.*?<\/a>/is'; | |
68 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_wmp_callback', $newtext); | |
69 | } | |
70 | ||
71 | if ($CFG->filter_mediaplugin_enable_mpg) { | |
72 | $search = '/<a.*?href="([^<]+\.mpe?g)(\?d=([\d]{1,3}%?)x([\d]{1,3}%?))?"[^>]*>.*?<\/a>/is'; | |
73 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_qt_callback', $newtext); | |
74 | } | |
75 | ||
76 | if ($CFG->filter_mediaplugin_enable_avi) { | |
77 | $search = '/<a.*?href="([^<]+\.avi)(\?d=([\d]{1,3}%?)x([\d]{1,3}%?))?"[^>]*>.*?<\/a>/is'; | |
78 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_wmp_callback', $newtext); | |
79 | } | |
80 | ||
81 | if ($CFG->filter_mediaplugin_enable_ram) { | |
82 | $search = '/<a.*?href="([^<]+\.ram)"[^>]*>.*?<\/a>/is'; | |
83 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_real_callback', $newtext); | |
84 | } | |
85 | ||
86 | if ($CFG->filter_mediaplugin_enable_rpm) { | |
87 | $search = '/<a.*?href="([^<]+\.rpm)"[^>]*>.*?<\/a>/is'; | |
88 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_real_callback', $newtext); | |
89 | } | |
90 | ||
91 | if ($CFG->filter_mediaplugin_enable_rm) { | |
92 | $search = '/<a.*?href="([^<]+\.rm)"[^>]*>.*?<\/a>/is'; | |
93 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_real_callback', $newtext); | |
94 | } | |
95 | ||
96 | if (!empty($CFG->filter_mediaplugin_enable_youtube)) { | |
97 | $search = '/<a.*?href="([^<]*)youtube.com\/watch\?v=([^"]*)"[^>]*>(.*?)<\/a>/is'; | |
98 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_youtube_callback', $newtext); | |
99 | ||
100 | $search = '/<a.*?href="([^<]*)youtube.com\/v\/([^"]*)"[^>]*>(.*?)<\/a>/is'; | |
101 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_youtube_callback', $newtext); | |
102 | } | |
103 | ||
224eccbf | 104 | if (!empty($CFG->filter_mediaplugin_enable_img)) { |
c159f28b | 105 | $search = '/<a.*?href="([^<]+\.jpg)"[^>]*>(.*?)<\/a>/is'; |
106 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_img_callback', $newtext); | |
107 | $search = '/<a.*?href="([^<]+\.png)"[^>]*>(.*?)<\/a>/is'; | |
108 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_img_callback', $newtext); | |
109 | $search = '/<a.*?href="([^<]+\.gif)"[^>]*>(.*?)<\/a>/is'; | |
110 | $newtext = preg_replace_callback($search, 'mediaplugin_filter_img_callback', $newtext); | |
111 | } | |
112 | ||
9e3f34d1 | 113 | if (empty($newtext) or $newtext === $text) { |
114 | // error or not filtered | |
115 | unset($newtext); | |
116 | return $text; | |
117 | } | |
118 | ||
119 | if (!$this->eolas_fix_applied) { | |
9dec75db | 120 | $PAGE->requires->js('/filter/mediaplugin/eolas_fix.js'); |
9e3f34d1 | 121 | $this->eolas_fix_applied = true; |
122 | } | |
123 | ||
124 | return $newtext; | |
d07851e1 | 125 | } |
6de17fde | 126 | } |
127 | ||
7e64d361 | 128 | ///=========================== |
129 | /// callback filter functions | |
130 | ||
131 | function mediaplugin_filter_mp3_callback($link) { | |
088ccb43 PS |
132 | global $CFG, $OUTPUT, $PAGE; |
133 | ||
134 | $c = $OUTPUT->filter_mediaplugin_colors(); // You can set this up in your theme/xxx/config.php | |
7e64d361 | 135 | |
136 | static $count = 0; | |
137 | $count++; | |
138 | $id = 'filter_mp3_'.time().$count; //we need something unique because it might be stored in text cache | |
139 | ||
140 | $url = addslashes_js($link[1]); | |
141 | ||
82afb587 | 142 | $args = Array(); |
143 | $args['movie'] = $CFG->wwwroot.'/filter/mediaplugin/mp3player.swf?src='.$url; | |
144 | $args['width'] = 90; | |
145 | $args['height'] = 15; | |
146 | $args['majorversion'] = 6; | |
147 | $args['build'] = 40; | |
148 | $args['flashvars'] = $c; | |
149 | $args['quality'] = 'high'; | |
4d49202f | 150 | |
10eaeca8 | 151 | $jsoutput = create_ufo_inline($id, $args); |
82afb587 | 152 | |
a845d68b | 153 | $output = $link[0].'<span class="mediaplugin mediaplugin_mp3" id="'.$id.'">('.get_string('mp3audio', 'filter_mediaplugin').')</span>'.$jsoutput; |
82afb587 | 154 | |
155 | return $output; | |
7e64d361 | 156 | } |
157 | ||
158 | function mediaplugin_filter_swf_callback($link) { | |
82afb587 | 159 | global $PAGE; |
7e64d361 | 160 | static $count = 0; |
161 | $count++; | |
162 | $id = 'filter_swf_'.time().$count; //we need something unique because it might be stored in text cache | |
163 | ||
164 | $width = empty($link[3]) ? '400' : $link[3]; | |
165 | $height = empty($link[4]) ? '300' : $link[4]; | |
166 | $url = addslashes_js($link[1]); | |
167 | ||
82afb587 | 168 | $args = Array(); |
169 | $args['movie'] = $url; | |
170 | $args['width'] = $width; | |
171 | $args['height'] = $height; | |
172 | $args['majorversion'] = 6; | |
173 | $args['build'] = 40; | |
174 | $args['allowscriptaccess'] = 'never'; | |
175 | $args['quality'] = 'high'; | |
82afb587 | 176 | |
10eaeca8 PS |
177 | $jsoutput = create_ufo_inline($id, $args); |
178 | ||
a845d68b | 179 | $output = $link[0].'<span class="mediaplugin mediaplugin_swf" id="'.$id.'">('.get_string('flashanimation', 'filter_mediaplugin').')</span>'.$jsoutput; |
82afb587 | 180 | |
181 | return $output; | |
7e64d361 | 182 | } |
183 | ||
184 | function mediaplugin_filter_flv_callback($link) { | |
82afb587 | 185 | global $CFG, $PAGE; |
7e64d361 | 186 | |
187 | static $count = 0; | |
188 | $count++; | |
189 | $id = 'filter_flv_'.time().$count; //we need something unique because it might be stored in text cache | |
190 | ||
191 | $width = empty($link[3]) ? '480' : $link[3]; | |
192 | $height = empty($link[4]) ? '360' : $link[4]; | |
193 | $url = addslashes_js($link[1]); | |
194 | ||
82afb587 | 195 | $args = Array(); |
196 | $args['movie'] = $CFG->wwwroot.'/filter/mediaplugin/flvplayer.swf?file='.$url; | |
197 | $args['width'] = $width; | |
198 | $args['height'] = $height; | |
199 | $args['majorversion'] = 6; | |
200 | $args['build'] = 40; | |
201 | $args['allowscriptaccess'] = 'never'; | |
202 | $args['quality'] = 'high'; | |
203 | $args['allowfullscreen'] = 'true'; | |
10eaeca8 | 204 | $jsoutput = create_ufo_inline($id, $args); |
82afb587 | 205 | |
a845d68b | 206 | $output = $link[0].'<span class="mediaplugin mediaplugin_flv" id="'.$id.'">('.get_string('flashvideo', 'filter_mediaplugin').')</span>'.$jsoutput; |
82afb587 | 207 | |
208 | return $output; | |
7e64d361 | 209 | } |
210 | ||
211 | function mediaplugin_filter_real_callback($link, $autostart=false) { | |
212 | $url = addslashes_js($link[1]); | |
213 | $mimetype = mimeinfo('type', $url); | |
214 | $autostart = $autostart ? 'true' : 'false'; | |
215 | ||
216 | // embed kept for now see MDL-8674 | |
217 | return $link[0]. | |
218 | '<span class="mediaplugin mediaplugin_real"> | |
219 | <script type="text/javascript"> | |
220 | //<![CDATA[ | |
221 | document.write(\'<object classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width="240" height="180">\\ | |
222 | <param name="src" value="'.$url.'" />\\ | |
223 | <param name="autostart" value="'.$autostart.'" />\\ | |
224 | <param name="controls" value="imagewindow" />\\ | |
225 | <param name="console" value="video" />\\ | |
226 | <param name="loop" value="true" />\\ | |
7c59f3be | 227 | <embed src="'.$url.'" width="240" height="180" loop="true" type="'.$mimetype.'" controls="imagewindow" console="video" autostart="'.$autostart.'" />\\ |
7e64d361 | 228 | </object><br />\\ |
229 | <object classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width="240" height="30">\\ | |
230 | <param name="src" value="'.$url.'" />\\ | |
231 | <param name="autostart" value="'.$autostart.'" />\\ | |
232 | <param name="controls" value="ControlPanel" />\\ | |
233 | <param name="console" value="video" />\\ | |
234 | <embed src="'.$url.'" width="240" height="30" controls="ControlPanel" type="'.$mimetype.'" console="video" autostart="'.$autostart.'" />\\ | |
235 | </object>\'); | |
236 | //]]> | |
237 | </script></span>'; | |
238 | } | |
239 | ||
4d8bccf4 | 240 | /** |
241 | * Change links to Youtube into embedded Youtube videos | |
242 | */ | |
243 | function mediaplugin_filter_youtube_callback($link, $autostart=false) { | |
244 | ||
245 | $site = addslashes_js($link[1]); | |
246 | $url = addslashes_js($link[2]); | |
247 | $info = addslashes_js($link[3]); | |
248 | ||
4317f92f PS |
249 | return '<object title="'.$info.'" |
250 | class="mediaplugin mediaplugin_youtube" type="application/x-shockwave-flash" | |
4d8bccf4 | 251 | data="'.$site.'youtube.com/v/'.$url.'&fs=1&rel=0" width="425" height="344">'. |
6188deb8 | 252 | '<param name="movie" value="'.$site.'youtube.com/v/'.$url.'&fs=1&rel=0" />'. |
4d8bccf4 | 253 | '<param name="FlashVars" value="playerMode=embedded" />'. |
254 | '<param name="wmode" value="transparent" />'. | |
255 | '<param name="allowFullScreen" value="true" />'. | |
e2cf2d7f | 256 | '</object>'; |
4d8bccf4 | 257 | } |
258 | ||
c159f28b | 259 | /** |
260 | * Change links to images into embedded images | |
261 | */ | |
262 | function mediaplugin_filter_img_callback($link, $autostart=false) { | |
263 | $url = addslashes_js($link[1]); | |
264 | $info = addslashes_js($link[2]); | |
265 | ||
266 | return '<img class="mediaplugin mediaplugin_img" alt="" title="'.$info.'" src="'.$url.'" />'; | |
267 | } | |
268 | ||
7e64d361 | 269 | /** |
270 | * Embed video using window media player if available | |
271 | */ | |
272 | function mediaplugin_filter_wmp_callback($link, $autostart=false) { | |
273 | $url = $link[1]; | |
274 | if (empty($link[3]) or empty($link[4])) { | |
275 | $mpsize = ''; | |
276 | $size = 'width="300" height="260"'; | |
277 | $autosize = 'true'; | |
278 | } else { | |
279 | $size = 'width="'.$link[3].'" height="'.$link[4].'"'; | |
280 | $mpsize = $size; | |
281 | $autosize = 'false'; | |
282 | } | |
283 | $mimetype = mimeinfo('type', $url); | |
284 | $autostart = $autostart ? 'true' : 'false'; | |
285 | ||
286 | return $link[0]. | |
287 | '<span class="mediaplugin mediaplugin_wmp"> | |
288 | <object classid="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6" '.$mpsize.' | |
289 | standby="Loading Microsoft(R) Windows(R) Media Player components..." | |
290 | type="application/x-oleobject"> | |
291 | <param name="Filename" value="'.$url.'" /> | |
292 | <param name="src" value="'.$url.'" /> | |
293 | <param name="url" value="'.$url.'" /> | |
294 | <param name="ShowControls" value="true" /> | |
295 | <param name="AutoRewind" value="true" /> | |
296 | <param name="AutoStart" value="'.$autostart.'" /> | |
297 | <param name="Autosize" value="'.$autosize.'" /> | |
298 | <param name="EnableContextMenu" value="true" /> | |
299 | <param name="TransparentAtStart" value="false" /> | |
300 | <param name="AnimationAtStart" value="false" /> | |
301 | <param name="ShowGotoBar" value="false" /> | |
302 | <param name="EnableFullScreenControls" value="true" /> | |
303 | <!--[if !IE]>--> | |
304 | <object data="'.$url.'" type="'.$mimetype.'" '.$size.'> | |
305 | <param name="src" value="'.$url.'" /> | |
306 | <param name="controller" value="true" /> | |
307 | <param name="autoplay" value="'.$autostart.'" /> | |
308 | <param name="autostart" value="'.$autostart.'" /> | |
309 | <param name="resize" value="scale" /> | |
310 | </object> | |
311 | <!--<![endif]--> | |
312 | </object></span>'; | |
313 | } | |
314 | ||
315 | function mediaplugin_filter_qt_callback($link, $autostart=false) { | |
316 | $url = $link[1]; | |
317 | if (empty($link[3]) or empty($link[4])) { | |
1387d5eb | 318 | $size = 'width="440" height="315"'; |
7e64d361 | 319 | } else { |
320 | $size = 'width="'.$link[3].'" height="'.$link[4].'"'; | |
321 | } | |
322 | $mimetype = mimeinfo('type', $url); | |
323 | $autostart = $autostart ? 'true' : 'false'; | |
324 | ||
325 | return $link[0]. | |
326 | '<span class="mediaplugin mediaplugin_qt"> | |
327 | <object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" | |
328 | codebase="http://www.apple.com/qtactivex/qtplugin.cab" '.$size.'> | |
329 | <param name="pluginspage" value="http://www.apple.com/quicktime/download/" /> | |
330 | <param name="src" value="'.$url.'" /> | |
d42df9da | 331 | <param name="controller" value="true" /> |
7e64d361 | 332 | <param name="loop" value="true" /> |
333 | <param name="autoplay" value="'.$autostart.'" /> | |
334 | <param name="autostart" value="'.$autostart.'" /> | |
335 | <param name="scale" value="aspect" /> | |
336 | <!--[if !IE]>--> | |
337 | <object data="'.$url.'" type="'.$mimetype.'" '.$size.'> | |
338 | <param name="src" value="'.$url.'" /> | |
339 | <param name="pluginurl" value="http://www.apple.com/quicktime/download/" /> | |
340 | <param name="controller" value="true" /> | |
341 | <param name="loop" value="true" /> | |
342 | <param name="autoplay" value="'.$autostart.'" /> | |
343 | <param name="autostart" value="'.$autostart.'" /> | |
344 | <param name="scale" value="aspect" /> | |
345 | </object> | |
346 | <!--<![endif]--> | |
347 | </object></span>'; | |
348 | } | |
6de17fde | 349 | |
4317f92f | 350 |