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 // Move all spaces out of the tags
119 $Text = preg_replace("/\[(\w*)\](\s*)/ism", '$2[$1]', $Text);
120 $Text = preg_replace("/(\s*)\[\/(\w*)\]/ism", '[/$2]$1', $Text);
122 // Hide all [noparse] contained bbtags by spacefying them
123 // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
125 $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
126 $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
127 $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
130 // Extract the private images which use data url's since preg has issues with
131 // large data sizes. Stash them away while we do bbcode conversion, and then put them back
132 // in after we've done all the regex matching. We cannot use any preg functions to do this.
134 $extracted = bb_extract_images($Text);
135 $Text = $extracted['body'];
136 $saved_image = $extracted['images'];
138 // If we find any event code, turn it into an event.
139 // After we're finished processing the bbcode we'll
140 // replace all of the event code with a reformatted version.
142 $ev = bbtoevent($Text);
145 // Replace any html brackets with HTML Entities to prevent executing HTML or script
146 // Don't use strip_tags here because it breaks [url] search by replacing & with amp
148 $Text = str_replace("<", "<", $Text);
149 $Text = str_replace(">", ">", $Text);
151 // Convert new line chars to html <br /> tags
153 // nlbr seems to be hopelessly messed up
154 // $Text = nl2br($Text);
158 $Text = str_replace("\r\n","\n", $Text);
159 $Text = str_replace(array("\r","\n"), array('<br />','<br />'), $Text);
162 $Text = str_replace(array("\n","\r"), array('',''),$Text);
166 // Set up the parameters for a URL search string
167 $URLSearchString = "^\[\]";
168 // Set up the parameters for a MAIL search string
169 $MAILSearchString = $URLSearchString;
172 // Perform URL Search
174 $Text = preg_replace("/([^\]\=]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="external-link">$2</a>', $Text);
177 $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\].*?\[\/bookmark\]/ism",'tryoembed',$Text);
179 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
182 $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
184 $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="external-link">$1</a>', $Text);
185 $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="external-link">$2</a>', $Text);
186 //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
188 // we may need to restrict this further if it picks up too many strays
189 // link acct:user@host to a webfinger profile redirector
191 $Text = preg_replace('/acct:(.*?)@(.*?)([ ,])/', '<a href="' . $a->get_baseurl() . '/acctlink?addr=' . "$1@$2"
192 . '" target="extlink" >acct:' . "$1@$2$3" . '</a>',$Text);
194 // Perform MAIL Search
195 $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
196 $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
198 // Check for bold text
199 $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
201 // Check for Italics text
202 $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
204 // Check for Underline text
205 $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
207 // Check for strike-through text
208 $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
210 // Check for over-line text
211 $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
213 // Check for colored text
214 $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
216 // Check for sized text
217 // [size=50] --> font-size: 50px (with the unit).
218 $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px;\">$2</span>",$Text);
219 $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1;\">$2</span>",$Text);
221 // Check for centered text
222 $Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
224 // Check for list text
225 $Text = str_replace("[*]", "<li>", $Text);
227 // Check for style sheet commands
228 $Text = preg_replace("(\[style=(.*?)\](.*?)\[\/style\])ism","<span style=\"$1;\">$2</span>",$Text);
230 // Check for CSS classes
231 $Text = preg_replace("(\[class=(.*?)\](.*?)\[\/class\])ism","<span class=\"$1\">$2</span>",$Text);
233 // handle nested lists
236 while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) ||
237 ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) ||
238 ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) ||
239 ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) {
240 $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
241 $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
242 $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
243 $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
244 $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
245 $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
246 $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
247 $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
248 $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
249 $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
252 $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
253 $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
254 $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
255 $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
257 $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
258 $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
260 $Text = str_replace('[hr]','<hr />', $Text);
262 // This is actually executed in prepare_body()
264 $Text = str_replace('[nosmile]','',$Text);
266 // Check for font change text
267 $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
269 // Declare the format for [code] layout
271 // $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
273 $CodeLayout = '<code>$1</code>';
274 // Check for [code] text
275 $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
277 // Declare the format for [spoiler] layout
278 $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
280 // Check for [spoiler] text
281 // handle nested quotes
283 while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
284 $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
286 // Check for [spoiler=Author] text
288 $t_wrote = t('$1 wrote:');
290 // handle nested quotes
292 while ((strpos($Text, "[/spoiler]")!== false) and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
293 $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
294 "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
297 // Declare the format for [quote] layout
298 $QuoteLayout = '<blockquote>$1</blockquote>';
300 // Check for [quote] text
301 // handle nested quotes
303 while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
304 $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
306 // Check for [quote=Author] text
308 $t_wrote = t('$1 wrote:');
310 // handle nested quotes
312 while ((strpos($Text, "[/quote]")!== false) and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
313 $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
314 "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
317 // [img=widthxheight]image source[/img]
318 //$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="height: $2px; width: $1px;" >', $Text);
319 $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
322 // [img]pathtoimage[/img]
323 $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
327 $Text = preg_replace("/\[crypt\](.*?)\[\/crypt\]/ism",'<br/><img src="' .$a->get_baseurl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . t('Encrypted content') . '" /><br />', $Text);
332 $Text = preg_replace("/\[video\](.*?\.(ogg|ogv|oga|ogm|webm|mp4))\[\/video\]/ism", '<video src="$1" controls="controls" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></video>', $Text);
333 $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);
335 $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
336 $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
338 $Text = preg_replace("/\[video\](.*?)\[\/video\]/", '$1', $Text);
339 $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/", '$1', $Text);
342 // html5 video and audio
346 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></iframe>', $Text);
348 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $Text);
350 // Youtube extensions
352 $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
353 $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
354 $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
357 $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
358 $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
359 $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
362 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '<iframe width="' . $a->videowidth . '" height="' . $a->videoheight . '" src="http://www.youtube.com/embed/$1" frameborder="0" ></iframe>', $Text);
364 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", "http://www.youtube.com/watch?v=$1", $Text);
368 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
369 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
372 $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
373 $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
376 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '<iframe width="' . $a->videowidth . '" height="' . $a->videoheight . '" src="http://player.vimeo.com/video/$1" frameborder="0" ></iframe>', $Text);
378 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", "http://vimeo.com/$1", $Text);
380 // $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);
384 $Text = oembed_bbcode2html($Text);
386 // Avoid triple linefeeds through oembed
387 $Text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $Text);
389 // If we found an event earlier, strip out all the event code and replace with a reformatted version.
390 // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
391 // Summary (e.g. title) is required, earlier revisions only required description (in addition to
392 // start which is always required). Allow desc with a missing summary for compatibility.
394 if((x($ev,'desc') || x($ev,'summary')) && x($ev,'start')) {
395 $sub = format_event_html($ev);
397 $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism",'',$Text);
398 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",'',$Text);
399 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",$sub,$Text);
400 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
401 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
402 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
405 // Unhide all [noparse] contained bbtags unspacefying them
406 // and triming the [noparse] tag.
408 $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
409 $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
410 $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
413 $Text = preg_replace('/\[\&\;([#a-z0-9]+)\;\]/','&$1;',$Text);
414 $Text = preg_replace('/\&\#039\;/','\'',$Text);
415 $Text = preg_replace('/\"\;/','"',$Text);
417 // fix any escaped ampersands that may have been converted into links
418 $Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
419 $Text = preg_replace("/\<(.*?)(src|href)=\"[^hfm](.*?)\>/ism",'<$1$2="">',$Text);
422 $Text = bb_replace_images($Text, $saved_image);
424 // Clean up the HTML by loading and saving the HTML with the DOM
425 // Only do it when it has to be done - for performance reasons
427 $doc = new DOMDocument();
428 $doc->preserveWhiteSpace = false;
430 $Text = mb_convert_encoding($Text, 'HTML-ENTITIES', "UTF-8");
432 $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
433 @$doc->loadHTML($doctype."<html><body>".$Text."</body></html>");
435 $Text = $doc->saveHTML();
436 $Text = str_replace(array("<html><body>", "</body></html>", $doctype), array("", "", ""), $Text);
438 $Text = str_replace('<br></li>','</li>', $Text);
440 $Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
443 call_hooks('bbcode',$Text);