3 require_once("include/oembed.php");
4 require_once('include/event.php');
8 function stripcode_br_cb($s) {
9 return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
12 function tryoembed($match){
13 $url = ((count($match)==2)?$match[1]:$match[2]);
14 // logger("tryoembed: $url");
16 $o = oembed_fetch_url($url);
18 //echo "<pre>"; var_dump($match, $url, $o); killme();
20 if ($o->type=="error") return $match[0];
22 $html = oembed_format_object($o);
23 return $html; //oembed_iframe($html,$o->width,$o->height);
27 // [noparse][i]italic[/i][/noparse] turns into
28 // [noparse][ i ]italic[ /i ][/noparse],
29 // to hide them from parser.
31 function bb_spacefy($st) {
32 $whole_match = $st[0];
34 $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
35 $new_str = str_replace($captured, $spacefied, $whole_match);
39 // The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
40 // now turns back and the [noparse] tags are trimed
41 // returning [i]italic[/i]
43 function bb_unspacefy_and_trim($st) {
44 $whole_match = $st[0];
46 $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
50 if(! function_exists('bb_extract_images')) {
51 function bb_extract_images($body) {
53 $saved_image = array();
58 $img_start = strpos($orig_body, '[img');
59 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
60 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
61 while(($img_st_close !== false) && ($img_end !== false)) {
63 $img_st_close++; // make it point to AFTER the closing bracket
64 $img_end += $img_start;
66 if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
67 // This is an embedded image
69 $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
70 $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
75 $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
77 $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
79 if($orig_body === false) // in case the body ends on a closing image tag
82 $img_start = strpos($orig_body, '[img');
83 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
84 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
87 $new_body = $new_body . $orig_body;
89 return array('body' => $new_body, 'images' => $saved_image);
92 if(! function_exists('bb_replace_images')) {
93 function bb_replace_images($body, $images) {
98 foreach($images as $image) {
99 // We're depending on the property of 'foreach' (specified on the PHP website) that
100 // it loops over the array starting from the first element and going sequentially
101 // to the last element
102 $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . $image .'" alt="' . t('Image/photo') . '" />', $newbody);
111 // BBcode 2 HTML was written by WAY2WEB.net
112 // extended to work with Mistpark/Friendica - Mike Macgirvin
114 function bbcode($Text,$preserve_nl = false, $tryoembed = true) {
118 // Hide all [noparse] contained bbtags by spacefying them
119 // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
121 $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
122 $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
123 $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
126 // Extract the private images which use data url's since preg has issues with
127 // large data sizes. Stash them away while we do bbcode conversion, and then put them back
128 // in after we've done all the regex matching. We cannot use any preg functions to do this.
130 $extracted = bb_extract_images($Text);
131 $Text = $extracted['body'];
132 $saved_image = $extracted['images'];
134 // If we find any event code, turn it into an event.
135 // After we're finished processing the bbcode we'll
136 // replace all of the event code with a reformatted version.
138 $ev = bbtoevent($Text);
141 // Replace any html brackets with HTML Entities to prevent executing HTML or script
142 // Don't use strip_tags here because it breaks [url] search by replacing & with amp
144 $Text = str_replace("<", "<", $Text);
145 $Text = str_replace(">", ">", $Text);
147 // Convert new line chars to html <br /> tags
149 // nlbr seems to be hopelessly messed up
150 // $Text = nl2br($Text);
154 $Text = str_replace("\r\n","\n", $Text);
155 $Text = str_replace(array("\r","\n"), array('<br />','<br />'), $Text);
158 $Text = str_replace(array("\n","\r"), array('',''),$Text);
162 // Set up the parameters for a URL search string
163 $URLSearchString = "^\[\]";
164 // Set up the parameters for a MAIL search string
165 $MAILSearchString = $URLSearchString;
168 // Perform URL Search
170 $Text = preg_replace("/([^\]\=]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="external-link">$2</a>', $Text);
173 $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\].*?\[\/bookmark\]/ism",'tryoembed',$Text);
175 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
178 $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
180 $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="external-link">$1</a>', $Text);
181 $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="external-link">$2</a>', $Text);
182 //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
184 // we may need to restrict this further if it picks up too many strays
185 // link acct:user@host to a webfinger profile redirector
187 $Text = preg_replace('/acct:(.*?)@(.*?)([ ,])/', '<a href="' . $a->get_baseurl() . '/acctlink?addr=' . "$1@$2"
188 . '" target="extlink" >acct:' . "$1@$2$3" . '</a>',$Text);
190 // Perform MAIL Search
191 $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
192 $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
194 // Check for bold text
195 $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
197 // Check for Italics text
198 $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
200 // Check for Underline text
201 $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
203 // Check for strike-through text
204 $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
206 // Check for over-line text
207 $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
209 // Check for colored text
210 $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
212 // Check for sized text
213 // [size=50] --> font-size: 50px (with the unit).
214 $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px;\">$2</span>",$Text);
215 $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1;\">$2</span>",$Text);
217 // Check for centered text
218 $Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
220 // Check for list text
221 $Text = str_replace("[*]", "<li>", $Text);
223 // handle nested lists
226 while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) ||
227 ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) ||
228 ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) ||
229 ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) {
230 $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
231 $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
232 $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
233 $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
234 $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
235 $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
236 $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
237 $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
238 $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
239 $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
242 $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
243 $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
244 $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
245 $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
247 $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
248 $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
250 $Text = str_replace('[hr]','<hr />', $Text);
252 // This is actually executed in prepare_body()
254 $Text = str_replace('[nosmile]','',$Text);
256 // Check for font change text
257 $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
259 // Declare the format for [code] layout
261 // $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
263 $CodeLayout = '<code>$1</code>';
264 // Check for [code] text
265 $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
267 // Declare the format for [spoiler] layout
268 $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
270 // Check for [spoiler] text
271 // handle nested quotes
273 while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
274 $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
276 // Check for [spoiler=Author] text
278 $t_wrote = t('$1 wrote:');
280 // handle nested quotes
282 while ((strpos($Text, "[/spoiler]")!== false) and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
283 $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
284 "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
287 // Declare the format for [quote] layout
288 $QuoteLayout = '<blockquote>$1</blockquote>';
290 // Check for [quote] text
291 // handle nested quotes
293 while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
294 $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
296 // Check for [quote=Author] text
298 $t_wrote = t('$1 wrote:');
300 // handle nested quotes
302 while ((strpos($Text, "[/quote]")!== false) and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
303 $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
304 "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
307 // [img=widthxheight]image source[/img]
308 //$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="height: $2px; width: $1px;" >', $Text);
309 $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
312 // [img]pathtoimage[/img]
313 $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
318 $Text = preg_replace("/\[video\](.*?\.(ogg|ogv|oga|ogm|webm|mp4))\[\/video\]/ism", '<video src="$1" controls="controls" width="425" height="350"><a href="$1">$1</a></video>', $Text);
319 $Text = preg_replace("/\[audio\](.*?\.(ogg|ogv|oga|ogm|webm|mp4|mp3))\[\/audio\]/ism", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $Text);
321 $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
322 $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
324 $Text = preg_replace("/\[video\](.*?)\[\/video\]/", '$1', $Text);
325 $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/", '$1', $Text);
328 // html5 video and audio
332 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="425" height="350"><a href="$1">$1</a></iframe>', $Text);
334 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $Text);
336 // Youtube extensions
338 $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
339 $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
340 $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
343 $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
344 $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
345 $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
348 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '<iframe width="425" height="350" src="http://www.youtube.com/embed/$1" frameborder="0" ></iframe>', $Text);
350 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", "http://www.youtube.com/watch?v=$1", $Text);
354 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
355 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
358 $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
359 $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
362 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '<iframe width="425" height="350" src="http://player.vimeo.com/video/$1" frameborder="0" ></iframe>', $Text);
364 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", "http://vimeo.com/$1", $Text);
366 // $Text = preg_replace("/\[youtube\](.*?)\[\/youtube\]/", '<object width="425" height="350" type="application/x-shockwave-flash" data="http://www.youtube.com/v/$1" ><param name="movie" value="http://www.youtube.com/v/$1"></param><!--[if IE]><embed src="http://www.youtube.com/v/$1" type="application/x-shockwave-flash" width="425" height="350" /><![endif]--></object>', $Text);
370 $Text = oembed_bbcode2html($Text);
372 // Avoid triple linefeeds through oembed
373 $Text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $Text);
375 // If we found an event earlier, strip out all the event code and replace with a reformatted version.
376 // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
377 // Summary (e.g. title) is required, earlier revisions only required description (in addition to
378 // start which is always required). Allow desc with a missing summary for compatibility.
380 if((x($ev,'desc') || x($ev,'summary')) && x($ev,'start')) {
381 $sub = format_event_html($ev);
383 $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism",'',$Text);
384 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",'',$Text);
385 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",$sub,$Text);
386 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
387 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
388 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
391 // Unhide all [noparse] contained bbtags unspacefying them
392 // and triming the [noparse] tag.
394 $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
395 $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
396 $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
399 $Text = preg_replace('/\[\&\;([#a-z0-9]+)\;\]/','&$1;',$Text);
401 // fix any escaped ampersands that may have been converted into links
402 $Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
405 $Text = bb_replace_images($Text, $saved_image);
407 // Clean up the HTML by loading and saving the HTML with the DOM
408 // Only do it when it has to be done - for performance reasons
410 $doc = new DOMDocument();
411 $doc->preserveWhiteSpace = false;
413 $Text = mb_convert_encoding($Text, 'HTML-ENTITIES', "UTF-8");
415 $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
416 @$doc->loadHTML($doctype."<html><body>".$Text."</body></html>");
418 $Text = $doc->saveHTML();
419 $Text = str_replace(array("<html><body>", "</body></html>", $doctype), array("", "", ""), $Text);
421 $Text = str_replace('<br></li>','</li>', $Text);
423 $Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
426 call_hooks('bbcode',$Text);