Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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  1. <?php
  2. require_once("include/oembed.php");
  3. require_once('include/event.php');
  4. function stripcode_br_cb($s) {
  5. return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
  6. }
  7. function tryoembed($match){
  8. $url = ((count($match)==2)?$match[1]:$match[2]);
  9. // logger("tryoembed: $url");
  10. $o = oembed_fetch_url($url);
  11. //echo "<pre>"; var_dump($match, $url, $o); killme();
  12. if ($o->type=="error") return $match[0];
  13. $html = oembed_format_object($o);
  14. return $html; //oembed_iframe($html,$o->width,$o->height);
  15. }
  16. // [noparse][i]italic[/i][/noparse] turns into
  17. // [noparse][ i ]italic[ /i ][/noparse],
  18. // to hide them from parser.
  19. function bb_spacefy($st) {
  20. $whole_match = $st[0];
  21. $captured = $st[1];
  22. $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
  23. $new_str = str_replace($captured, $spacefied, $whole_match);
  24. return $new_str;
  25. }
  26. // The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
  27. // now turns back and the [noparse] tags are trimed
  28. // returning [i]italic[/i]
  29. function bb_unspacefy_and_trim($st) {
  30. $whole_match = $st[0];
  31. $captured = $st[1];
  32. $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
  33. return $unspacefied;
  34. }
  35. // BBcode 2 HTML was written by WAY2WEB.net
  36. // extended to work with Mistpark/Friendica - Mike Macgirvin
  37. function bbcode($Text,$preserve_nl = false, $tryoembed = true) {
  38. $a = get_app();
  39. // Hide all [noparse] contained bbtags spacefying them
  40. $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
  41. $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
  42. $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
  43. // Extract a single private image which uses data url's since preg has issues with
  44. // large data sizes. Stash it away while we do bbcode conversion, and then put it back
  45. // in after we've done all the regex matching. We cannot use any preg functions to do this.
  46. $saved_image = '';
  47. $img_start = strpos($Text,'[img]data:');
  48. $img_end = strpos($Text,'[/img]');
  49. if($img_start !== false && $img_end !== false && $img_end > $img_start) {
  50. $start_fragment = substr($Text,0,$img_start);
  51. $img_start += strlen('[img]');
  52. $saved_image = substr($Text,$img_start,$img_end - $img_start);
  53. $end_fragment = substr($Text,$img_end + strlen('[/img]'));
  54. // logger('saved_image: ' . $saved_image,LOGGER_DEBUG);
  55. $Text = $start_fragment . '[$#saved_image#$]' . $end_fragment;
  56. }
  57. // If we find any event code, turn it into an event.
  58. // After we're finished processing the bbcode we'll
  59. // replace all of the event code with a reformatted version.
  60. $ev = bbtoevent($Text);
  61. // Replace any html brackets with HTML Entities to prevent executing HTML or script
  62. // Don't use strip_tags here because it breaks [url] search by replacing & with amp
  63. $Text = str_replace("<", "&lt;", $Text);
  64. $Text = str_replace(">", "&gt;", $Text);
  65. // Convert new line chars to html <br /> tags
  66. $Text = nl2br($Text);
  67. if($preserve_nl)
  68. $Text = str_replace(array("\n","\r"), array('',''),$Text);
  69. // Set up the parameters for a URL search string
  70. $URLSearchString = "^\[\]";
  71. // Set up the parameters for a MAIL search string
  72. $MAILSearchString = $URLSearchString;
  73. // Perform URL Search
  74. $Text = preg_replace("/([^\]\=]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="external-link">$2</a>', $Text);
  75. if ($tryoembed)
  76. $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\].*?\[\/bookmark\]/ism",'tryoembed',$Text);
  77. $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
  78. if ($tryoembed)
  79. $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
  80. $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="external-link">$1</a>', $Text);
  81. $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="external-link">$2</a>', $Text);
  82. //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
  83. // we may need to restrict this further if it picks up too many strays
  84. // link acct:user@host to a webfinger profile redirector
  85. $Text = preg_replace('/acct:(.*?)@(.*?)([ ,])/', '<a href="' . $a->get_baseurl() . '/acctlink?addr=' . "$1@$2"
  86. . '" target="extlink" >acct:' . "$1@$2$3" . '</a>',$Text);
  87. // Perform MAIL Search
  88. $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
  89. $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
  90. // Check for bold text
  91. $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
  92. // Check for Italics text
  93. $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
  94. // Check for Underline text
  95. $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
  96. // Check for strike-through text
  97. $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
  98. // Check for over-line text
  99. $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
  100. // Check for colored text
  101. $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
  102. // Check for sized text
  103. // [size=50] --> font-size: 50px (with the unit).
  104. $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px;\">$2</span>",$Text);
  105. $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1;\">$2</span>",$Text);
  106. // Check for centered text
  107. $Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
  108. // Check for list text
  109. $Text = str_replace("[*]", "<li>", $Text);
  110. $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
  111. // handle nested lists
  112. $endlessloop = 0;
  113. while ((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false) &&
  114. (strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false) &&
  115. (strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false) && (++$endlessloop < 20)) {
  116. $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
  117. $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
  118. $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
  119. $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
  120. $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
  121. $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
  122. $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
  123. $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
  124. $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
  125. }
  126. $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
  127. $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
  128. $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
  129. $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
  130. $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
  131. $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
  132. $Text = str_replace('[hr]','<hr />', $Text);
  133. // This is actually executed in prepare_body()
  134. $Text = str_replace('[nosmile]','',$Text);
  135. // Check for font change text
  136. $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
  137. // Declare the format for [code] layout
  138. $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
  139. $CodeLayout = '<code>$1</code>';
  140. // Check for [code] text
  141. $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
  142. // Declare the format for [spoiler] layout
  143. $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
  144. // Check for [spoiler] text
  145. // handle nested quotes
  146. $endlessloop = 0;
  147. while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
  148. $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
  149. // Check for [spoiler=Author] text
  150. $t_wrote = t('$1 wrote:');
  151. // handle nested quotes
  152. $endlessloop = 0;
  153. while ((strpos($Text, "[/spoiler]")!== false) and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
  154. $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
  155. "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
  156. $Text);
  157. // Declare the format for [quote] layout
  158. $QuoteLayout = '<blockquote>$1</blockquote>';
  159. // Check for [quote] text
  160. // handle nested quotes
  161. $endlessloop = 0;
  162. while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
  163. $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
  164. // Check for [quote=Author] text
  165. $t_wrote = t('$1 wrote:');
  166. // handle nested quotes
  167. $endlessloop = 0;
  168. while ((strpos($Text, "[/quote]")!== false) and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
  169. $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
  170. "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
  171. $Text);
  172. // [img=widthxheight]image source[/img]
  173. //$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="height: $2px; width: $1px;" >', $Text);
  174. $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
  175. // Images
  176. // [img]pathtoimage[/img]
  177. $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
  178. $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);
  179. $Text = preg_replace("/\[audio\](.*?\.(ogg|ogv|oga|ogm|webm|mp4|mp3))\[\/audio\]/ism", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $Text);
  180. // Try to Oembed
  181. if ($tryoembed) {
  182. $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
  183. $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
  184. }
  185. // html5 video and audio
  186. $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="425" height="350"><a href="$1">$1</a></iframe>', $Text);
  187. // Youtube extensions
  188. if ($tryoembed) {
  189. $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
  190. $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
  191. $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
  192. }
  193. $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
  194. $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
  195. $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
  196. $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>', $Text);
  197. if ($tryoembed) {
  198. $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
  199. $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
  200. }
  201. $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
  202. $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
  203. $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '<iframe width="425" height="350" src="http://player.vimeo.com/video/$1" frameborder="0" ></iframe>', $Text);
  204. // $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);
  205. // oembed tag
  206. $Text = oembed_bbcode2html($Text);
  207. // If we found an event earlier, strip out all the event code and replace with a reformatted version.
  208. if(x($ev,'desc') && x($ev,'start')) {
  209. $sub = format_event_html($ev);
  210. $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism",'',$Text);
  211. $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",$sub,$Text);
  212. $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",'',$Text);
  213. $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
  214. $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
  215. $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
  216. }
  217. // Unhide all [noparse] contained bbtags unspacefying them
  218. // and triming the [noparse] tag.
  219. $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
  220. $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
  221. $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
  222. $Text = preg_replace('/\[\&amp\;([#a-z0-9]+)\;\]/','&$1;',$Text);
  223. // fix any escaped ampersands that may have been converted into links
  224. $Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
  225. if(strlen($saved_image))
  226. $Text = str_replace('[$#saved_image#$]','<img src="' . $saved_image .'" alt="' . t('Image/photo') . '" />',$Text);
  227. call_hooks('bbcode',$Text);
  228. return $Text;
  229. }