]> git.mxchange.org Git - friendica.git/blob - include/bbcode.php
Merge branch 'master', remote-tracking branch 'remotes/upstream/master'
[friendica.git] / include / bbcode.php
1 <?php
2
3 require_once("include/oembed.php");
4 require_once('include/event.php');
5
6
7
8 function stripcode_br_cb($s) {
9         return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
10 }
11
12 function tryoembed($match){
13         $url = ((count($match)==2)?$match[1]:$match[2]);
14 //      logger("tryoembed: $url");
15
16         $o = oembed_fetch_url($url);
17
18         //echo "<pre>"; var_dump($match, $url, $o); killme();
19
20         if ($o->type=="error") return $match[0];
21
22         $html = oembed_format_object($o);
23         return $html; //oembed_iframe($html,$o->width,$o->height);
24
25 }
26
27 // [noparse][i]italic[/i][/noparse] turns into
28 // [noparse][ i ]italic[ /i ][/noparse],
29 // to hide them from parser.
30
31 function bb_spacefy($st) {
32   $whole_match = $st[0];
33   $captured = $st[1];
34   $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
35   $new_str = str_replace($captured, $spacefied, $whole_match);
36   return $new_str;
37 }
38
39 // The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
40 // now turns back and the [noparse] tags are trimed
41 // returning [i]italic[/i]
42
43 function bb_unspacefy_and_trim($st) {
44   $whole_match = $st[0];
45   $captured = $st[1];
46   $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
47   return $unspacefied;
48 }
49
50         // BBcode 2 HTML was written by WAY2WEB.net
51         // extended to work with Mistpark/Friendica - Mike Macgirvin
52
53 function bbcode($Text,$preserve_nl = false) {
54
55         // Hide all [noparse] contained bbtags spacefying them
56
57         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
58         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
59         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
60
61
62         // Extract a single private image which uses data url's since preg has issues with
63         // large data sizes. Stash it away while we do bbcode conversion, and then put it back
64         // in after we've done all the regex matching. We cannot use any preg functions to do this.
65
66         $saved_image = '';
67         $img_start = strpos($Text,'[img]data:');
68         $img_end = strpos($Text,'[/img]');
69
70         if($img_start !== false && $img_end !== false && $img_end > $img_start) {
71                 $start_fragment = substr($Text,0,$img_start);
72                 $img_start += strlen('[img]');
73                 $saved_image = substr($Text,$img_start,$img_end - $img_start);
74                 $end_fragment = substr($Text,$img_end + strlen('[/img]'));
75 //              logger('saved_image: ' . $saved_image,LOGGER_DEBUG);
76                 $Text = $start_fragment . '[$#saved_image#$]' . $end_fragment;
77         }
78
79         // If we find any event code, turn it into an event.
80         // After we're finished processing the bbcode we'll
81         // replace all of the event code with a reformatted version.
82
83         $ev = bbtoevent($Text);
84
85
86         // Replace any html brackets with HTML Entities to prevent executing HTML or script
87         // Don't use strip_tags here because it breaks [url] search by replacing & with amp
88
89         $Text = str_replace("<", "&lt;", $Text);
90         $Text = str_replace(">", "&gt;", $Text);
91
92         // Convert new line chars to html <br /> tags
93
94         $Text = nl2br($Text);
95         if($preserve_nl)
96                 $Text = str_replace(array("\n","\r"), array('',''),$Text);
97
98
99         // Set up the parameters for a URL search string
100         $URLSearchString = "^\[\]";
101         // Set up the parameters for a MAIL search string
102         $MAILSearchString = $URLSearchString;
103
104
105         // Perform URL Search
106
107         $Text = preg_replace("/([^\]\=]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="external-link">$2</a>', $Text);
108
109         $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\].*?\[\/bookmark\]/ism",'tryoembed',$Text);
110         $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
111
112         $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
113         $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="external-link">$1</a>', $Text);
114         $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="external-link">$2</a>', $Text);
115         //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
116
117
118         // Perform MAIL Search
119         $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
120         $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
121
122         // Check for bold text
123         $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
124
125         // Check for Italics text
126         $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
127
128         // Check for Underline text
129         $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
130
131         // Check for strike-through text
132         $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
133
134         // Check for over-line text
135         $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
136
137         // Check for colored text
138         $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
139
140         // Check for sized text
141         // [size=50] --> font-size: 50px (with the unit).
142         $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px;\">$2</span>",$Text);
143         $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1;\">$2</span>",$Text);
144
145         // Check for centered text
146         $Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
147
148         // Check for list text
149         $Text = str_replace("[*]", "<li>", $Text);
150         $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
151
152         // handle nested lists
153         $endlessloop = 0;
154         while ((strpos($Text, "[/list]") !== false) and (strpos($Text, "[list") !== false) and (++$endlessloop < 20)) {
155                 $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
156                 $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
157                 $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
158                 $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
159                 $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
160                 $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
161                 $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
162         }
163
164         $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
165         $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
166
167         $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
168         $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
169         $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
170         $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
171
172         $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
173         $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
174
175         $Text = str_replace('[hr]','<hr />', $Text);
176
177         // This is actually executed in prepare_body()
178
179         $Text = str_replace('[nosmile]','',$Text);
180
181         // Check for font change text
182         $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
183
184         // Declare the format for [code] layout
185
186         $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
187
188         $CodeLayout = '<code>$1</code>';
189         // Check for [code] text
190         $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
191
192         // Declare the format for [spoiler] layout
193         $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
194
195         // Check for [spoiler] text
196         // handle nested quotes
197         $endlessloop = 0;
198         while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
199                 $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
200
201         // Check for [spoiler=Author] text
202
203         $t_wrote = t('$1 wrote:');
204
205         // handle nested quotes
206         $endlessloop = 0;
207         while ((strpos($Text, "[/spoiler]")!== false)  and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
208                 $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
209                                      "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
210                                      $Text);
211
212         // Declare the format for [quote] layout
213         $QuoteLayout = '<blockquote>$1</blockquote>';
214
215         // Check for [quote] text
216         // handle nested quotes
217         $endlessloop = 0;
218         while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
219                 $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
220
221         // Check for [quote=Author] text
222
223         $t_wrote = t('$1 wrote:');
224
225         // handle nested quotes
226         $endlessloop = 0;
227         while ((strpos($Text, "[/quote]")!== false)  and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
228                 $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
229                                      "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote class=".'"author"'.">$2</blockquote>",
230                                      $Text);
231
232         // [img=widthxheight]image source[/img]
233         //$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="height: $2px; width: $1px;" >', $Text);
234         $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
235
236         // Images
237         // [img]pathtoimage[/img]
238         $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
239
240
241         $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);
242
243         $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);
244
245         // Try to Oembed
246         $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
247         $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
248
249
250         // html5 video and audio
251
252
253         $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="425" height="350"><a href="$1">$1</a></iframe>', $Text);
254          
255
256         // Youtube extensions
257         $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);        
258         $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);        
259         $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text); 
260         
261         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text); 
262         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text); 
263         $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text); 
264                 
265         
266         $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);
267
268
269         $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text); 
270         $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text); 
271
272         $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text); 
273         $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text); 
274         $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '<iframe width="425" height="350" src="http://player.vimeo.com/video/$1" frameborder="0" ></iframe>', $Text);
275
276 //      $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);
277
278
279         // oembed tag
280         $Text = oembed_bbcode2html($Text);
281
282         // If we found an event earlier, strip out all the event code and replace with a reformatted version.
283
284         if(x($ev,'desc') && x($ev,'start')) {
285                 $sub = format_event_html($ev);
286
287                 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",$sub,$Text);
288                 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",'',$Text);
289                 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
290                 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
291                 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
292         }
293
294         // Unhide all [noparse] contained bbtags unspacefying them 
295         // and triming the [noparse] tag.
296
297         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
298         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
299         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
300
301
302         $Text = preg_replace('/\[\&amp\;([#a-z0-9]+)\;\]/','&$1;',$Text);
303
304         // fix any escaped ampersands that may have been converted into links
305         $Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
306         if(strlen($saved_image))
307                 $Text = str_replace('[$#saved_image#$]','<img src="' . $saved_image .'" alt="' . t('Image/photo') . '" />',$Text);
308
309         call_hooks('bbcode',$Text);
310
311         return $Text;
312 }
313