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1 | <?php |
2 | /******************************************************************************** |
3 | * include/misc.inc.php : Misc functions |
4 | * ------------------------- |
5 | * |
6 | * This file is part of the banana distribution |
7 | * Copyright: See COPYING files that comes with this distribution |
8 | ********************************************************************************/ |
9 | |
10 | /******************************************************************************** |
11 | * MISC |
12 | */ |
13 | |
14 | function _b_($str) { return utf8_decode(dgettext('banana', utf8_encode($str))); } |
15 | |
16 | function to_entities($str) { |
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17 | require_once dirname(__FILE__).'/utf8.php'; |
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18 | return utf8entities(htmlentities($str, ENT_NOQUOTES, 'UTF-8')); |
19 | } |
20 | |
21 | function is_utf8($s) { return iconv('utf-8', 'utf-8', $s) == $s; } |
22 | |
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23 | function textFormat_translate($format) |
24 | { |
25 | switch (strtolower($format)) { |
26 | case 'plain': return _b_('Texte brut'); |
27 | case 'richtext': return _b_('Texte enrichi'); |
28 | case 'html': return _b_('HTML'); |
29 | default: return $format; |
30 | } |
31 | } |
32 | |
33 | /******************************************************************************** |
34 | * HTML STUFF |
35 | * Taken from php.net |
36 | */ |
37 | |
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38 | /** |
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39 | * @return string |
40 | * @param string |
41 | * @desc Strip forbidden tags and delegate tag-source check to removeEvilAttributes() |
42 | */ |
43 | function removeEvilTags($source) |
44 | { |
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45 | $allowedTags = '<h1><b><i><a><ul><li><pre><hr><blockquote><img><br><font><p><small><big><sup><sub><code><em>'; |
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46 | $source = preg_replace('|</div>|i', '<br />', $source); |
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47 | $source = strip_tags($source, $allowedTags); |
48 | return preg_replace('/<(.*?)>/ie', "'<'.removeEvilAttributes('\\1').'>'", $source); |
49 | } |
50 | |
51 | /** |
52 | * @return string |
53 | * @param string |
54 | * @desc Strip forbidden attributes from a tag |
55 | */ |
56 | function removeEvilAttributes($tagSource) |
57 | { |
58 | $stripAttrib = 'javascript:|onclick|ondblclick|onmousedown|onmouseup|onmouseover|'. |
59 | 'onmousemove|onmouseout|onkeypress|onkeydown|onkeyup'; |
60 | return stripslashes(preg_replace("/$stripAttrib/i", '', $tagSource)); |
61 | } |
62 | |
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63 | /** Convert html to plain text |
64 | */ |
65 | function htmlToPlainText($res) |
66 | { |
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67 | $res = trim(html_entity_decode(strip_tags($res, '<div><br><p>'))); |
68 | $res = preg_replace("@</?(br|p|div)[^>]*>@i", "\n", $res); |
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69 | if (!is_utf8($res)) { |
70 | $res = utf8_encode($res); |
71 | } |
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72 | return $res; |
73 | } |
74 | |
75 | /******************************************************************************** |
76 | * RICHTEXT STUFF |
77 | */ |
78 | |
79 | /** Convert richtext to html |
80 | */ |
81 | function richtextToHtml($source) |
82 | { |
83 | $tags = Array('bold' => 'b', |
84 | 'italic' => 'i', |
85 | 'smaller' => 'small', |
86 | 'bigger' => 'big', |
87 | 'underline' => 'u', |
88 | 'subscript' => 'sub', |
89 | 'superscript' => 'sup', |
90 | 'excerpt' => 'blockquote', |
91 | 'paragraph' => 'p', |
92 | 'nl' => 'br' |
93 | ); |
94 | |
95 | // clean unsupported tags |
96 | $protectedTags = '<signature><lt><comment><'.join('><', array_keys($tags)).'>'; |
97 | $source = strip_tags($source, $protectedTags); |
98 | |
99 | // convert richtext tags to html |
100 | foreach (array_keys($tags) as $tag) { |
101 | $source = preg_replace('@(</?)'.$tag.'([^>]*>)@i', '\1'.$tags[$tag].'\2', $source); |
102 | } |
103 | |
104 | // some special cases |
105 | $source = preg_replace('@<signature>@i', '<br>-- <br>', $source); |
106 | $source = preg_replace('@</signature>@i', '', $source); |
107 | $source = preg_replace('@<lt>@i', '<', $source); |
108 | $source = preg_replace('@<comment[^>]*>((?:[^<]|<(?!/comment>))*)</comment>@i', '<!-- \1 -->', $source); |
109 | return removeEvilAttributes($source); |
110 | } |
111 | |
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112 | /******************************************************************************** |
113 | * HEADER STUFF |
114 | */ |
115 | |
116 | function _headerdecode($charset, $c, $str) { |
117 | $s = ($c == 'Q') ? quoted_printable_decode($str) : base64_decode($str); |
118 | $s = iconv($charset, 'iso-8859-15', $s); |
119 | return str_replace('_', ' ', $s); |
120 | } |
121 | |
122 | function headerDecode($value) { |
123 | $val = preg_replace('/(=\?[^?]*\?[BQ]\?[^?]*\?=) (=\?[^?]*\?[BQ]\?[^?]*\?=)/', '\1\2', $value); |
124 | return preg_replace('/=\?([^?]*)\?([BQ])\?([^?]*)\?=/e', '_headerdecode("\1", "\2", "\3")', $val); |
125 | } |
126 | |
127 | function headerEncode($value, $trim = 0) { |
128 | if ($trim) { |
129 | if (strlen($value) > $trim) { |
130 | $value = substr($value, 0, $trim) . "[...]"; |
131 | } |
132 | } |
133 | return "=?UTF-8?B?".base64_encode($value)."?="; |
134 | } |
135 | |
136 | function header_translate($hdr) { |
137 | switch ($hdr) { |
138 | case 'from': return _b_('De'); |
139 | case 'subject': return _b_('Sujet'); |
140 | case 'newsgroups': return _b_('Forums'); |
141 | case 'followup-to': return _b_('Suivi-à'); |
142 | case 'date': return _b_('Date'); |
143 | case 'organization': return _b_('Organisation'); |
144 | case 'references': return _b_('Références'); |
145 | case 'x-face': return _b_('Image'); |
146 | default: |
147 | if (function_exists('hook_headerTranslate') |
148 | && $res = hook_headerTranslate($hdr)) { |
149 | return $res; |
150 | } |
151 | return $hdr; |
152 | } |
153 | } |
154 | |
155 | function formatDisplayHeader($_header,$_text) { |
156 | global $banana; |
157 | switch ($_header) { |
158 | case "date": |
159 | return formatDate($_text); |
160 | |
161 | case "followup-to": |
162 | case "newsgroups": |
163 | $res = ""; |
164 | $groups = preg_split("/[\t ]*,[\t ]*/",$_text); |
165 | foreach ($groups as $g) { |
166 | $res.="<a href='?group=$g'>$g</a>, "; |
167 | } |
168 | return substr($res,0, -2); |
169 | |
170 | case "from": |
171 | return formatFrom($_text); |
172 | |
173 | case "references": |
174 | $rsl = ""; |
175 | $ndx = 1; |
176 | $text = str_replace("><","> <",$_text); |
177 | $text = preg_split("/[ \t]/",strtr($text,$banana->spool->ids)); |
178 | $parents = preg_grep("/^\d+$/",$text); |
179 | $p = array_pop($parents); |
180 | $par_ok = Array(); |
181 | |
182 | while ($p) { |
183 | $par_ok[]=$p; |
184 | $p = $banana->spool->overview[$p]->parent; |
185 | } |
186 | foreach (array_reverse($par_ok) as $p) { |
187 | $rsl .= "<a href=\"?group={$banana->spool->group}&artid=$p\">$ndx</a> "; |
188 | $ndx++; |
189 | } |
190 | return $rsl; |
191 | |
192 | case "x-face": |
193 | return '<img src="xface.php?face='.base64_encode($_text).'" alt="x-face" />'; |
194 | |
195 | default: |
196 | if (function_exists('hook_formatDisplayHeader') |
197 | && $res = hook_formatDisplayHeader($_header, $_text)) |
198 | { |
199 | return $res; |
200 | } |
201 | return htmlentities($_text); |
202 | } |
203 | } |
204 | |
205 | /******************************************************************************** |
206 | * FORMATTING STUFF |
207 | */ |
208 | |
209 | function formatDate($_text) { |
210 | return strftime("%A %d %B %Y, %H:%M (fuseau serveur)", strtotime($_text)); |
211 | } |
212 | |
213 | function fancyDate($stamp) { |
214 | $today = intval(time() / (24*3600)); |
215 | $dday = intval($stamp / (24*3600)); |
216 | |
217 | if ($today == $dday) { |
218 | $format = "%H:%M"; |
219 | } elseif ($today == 1 + $dday) { |
220 | $format = _b_('hier')." %H:%M"; |
221 | } elseif ($today < 7 + $dday) { |
222 | $format = '%a %H:%M'; |
223 | } else { |
224 | $format = '%a %e %b'; |
225 | } |
226 | return strftime($format, $stamp); |
227 | } |
228 | |
229 | function formatFrom($text) { |
230 | # From: mark@cbosgd.ATT.COM |
231 | # From: mark@cbosgd.ATT.COM (Mark Horton) |
232 | # From: Mark Horton <mark@cbosgd.ATT.COM> |
233 | $mailto = '<a href="mailto:'; |
234 | |
235 | $result = htmlentities($text); |
236 | if (preg_match("/^([^ ]+)@([^ ]+)$/",$text,$regs)) { |
237 | $result="$mailto{$regs[1]}@{$regs[2]}\">".htmlentities($regs[1]."@".$regs[2])."</a>"; |
238 | } |
239 | if (preg_match("/^([^ ]+)@([^ ]+) \((.*)\)$/",$text,$regs)) { |
240 | $result="$mailto{$regs[1]}@{$regs[2]}\">".htmlentities($regs[3])."</a>"; |
241 | } |
242 | if (preg_match("/^\"?([^<>\"]+)\"? +<(.+)@(.+)>$/",$text,$regs)) { |
243 | $result="$mailto{$regs[2]}@{$regs[3]}\">".htmlentities($regs[1])."</a>"; |
244 | } |
245 | return preg_replace("/\\\(\(|\))/","\\1",$result); |
246 | } |
247 | |
248 | function displayshortcuts($first = -1) { |
249 | global $banana; |
250 | extract($banana->state); |
251 | |
252 | $res = '<div class="banana_scuts">'; |
253 | $res .= '[<a href="?">'._b_('Liste des forums').'</a>] '; |
254 | if (is_null($group)) { |
255 | return $res.'[<a href="?subscribe=1">'._b_('Abonnements').'</a>]</div>'; |
256 | } |
257 | |
258 | $res .= "[<a href=\"?group=$group\">$group</a>] "; |
259 | |
260 | if (is_null($artid)) { |
261 | $res .= "[<a href=\"?group=$group&action=new\">"._b_('Nouveau message')."</a>] "; |
262 | if (sizeof($banana->spool->overview)>$banana->tmax) { |
263 | $res .= '<br />'; |
264 | $n = intval(log(count($banana->spool->overview), 10))+1; |
265 | for ($ndx=1; $ndx <= sizeof($banana->spool->overview); $ndx += $banana->tmax) { |
266 | if ($first==$ndx) { |
267 | $fmt = "[%0{$n}u-%0{$n}u] "; |
268 | } else { |
269 | $fmt = "[<a href=\"?group=$group&first=$ndx\">%0{$n}u-%0{$n}u</a>] "; |
270 | } |
271 | $res .= sprintf($fmt, $ndx, min($ndx+$banana->tmax-1,sizeof($banana->spool->overview))); |
272 | } |
273 | } |
274 | } else { |
275 | $res .= "[<a href=\"?group=$group&artid=$artid&action=new\">" |
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276 | ._b_('Répondre')."</a>] "; |
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277 | if ($banana->post && $banana->post->checkcancel()) { |
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278 | $res .= "[<a href=\"?group=$group&artid=$artid&action=cancel\">" |
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279 | ._b_('Annuler ce message')."</a>] "; |
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280 | } |
281 | } |
282 | return $res.'</div>'; |
283 | } |
284 | |
285 | /******************************************************************************** |
286 | * FORMATTING STUFF : BODY |
287 | */ |
288 | |
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289 | function wrap($text, $_prefix="", $_force=false) |
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290 | { |
291 | $parts = preg_split("/\n-- ?\n/", $text); |
292 | if (count($parts) >1) { |
293 | $sign = "\n-- \n" . array_pop($parts); |
294 | $text = join("\n-- \n", $parts); |
295 | } else { |
296 | $sign = ''; |
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297 | } |
298 | |
299 | global $banana; |
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300 | $url = $banana->url_regexp; |
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301 | $length = $banana->wrap; |
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302 | $max = $length + ($length/10); |
303 | $splits = split("\n", $text); |
304 | $ret = -1; |
305 | foreach ($splits as $line) { |
306 | if ($_force || strlen($line) > $max) { |
307 | if (!preg_match("!^\\s*$url\\s*$!i", $line)) { |
308 | $cmd = "echo ".escapeshellarg($text)." | perl -MText::Autoformat -e 'autoformat {left=>1, right=>$length, all=>1 };'"; |
309 | exec($cmd, $result, $ret); |
310 | break; |
311 | } |
312 | } |
313 | } |
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314 | if ($ret != 0) { |
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315 | $result = $splits; |
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316 | } |
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317 | |
318 | return $_prefix.join("\n$_prefix", $result).($_prefix ? '' : $sign); |
319 | } |
320 | |
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321 | function cutlink($link) |
322 | { |
323 | global $banana; |
324 | |
325 | if (strlen($link) > $banana->wrap) { |
326 | $link = substr($link, 0, $banana->wrap - 3)."..."; |
327 | } |
328 | return $link; |
329 | } |
330 | |
331 | function formatbody($_text, $format='plain', $flowed=false) |
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332 | { |
333 | if ($format == 'html') { |
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334 | $res = '<br/>'.html_entity_decode(to_entities(removeEvilTags($_text))).'<br/>'; |
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335 | } else if ($format == 'richtext') { |
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336 | $res = '<br/>'.createlinks(html_entity_decode(to_entities(richtextToHtml($_text)))).'<br/>'; |
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337 | $format = 'html'; |
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338 | } else { |
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339 | $res = "\n\n" . to_entities(wrap($_text, "", $flowed))."\n\n"; |
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340 | } |
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341 | |
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342 | global $banana; |
343 | $url = $banana->url_regexp; |
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344 | $res = preg_replace("/(<|>|")/", " \\1 ", $res); |
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345 | $res = preg_replace("!$url!ie", "'\\1<a href=\"\\2\" title=\"\\2\">'.cutlink('\\2').'</a>\\3'", $res); |
346 | $res = preg_replace("/ (<|>|") /", "\\1", $res); |
347 | |
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348 | if ($format == 'html') { |
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349 | $res = preg_replace("@(</p>)\n?-- \n?(<p[^>]*>|<br[^>]*>)@", "\\1<br/>-- \\2", $res); |
350 | $res = preg_replace("@<br[^>]*>\n?-- \n?(<p[^>]*>)@", "<br/>-- <br/>\\2", $res); |
351 | $parts = preg_split("@(:?<p[^>]*>\n?-- \n?</p>|<br[^>]*>\n?-- \n?<br[^>]*>)@", $res); |
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352 | } else { |
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353 | for ($i = 1 ; preg_match("@(^|<pre>|\n)>@i", $res) ; $i++) { |
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354 | $res = preg_replace("@(^|<pre>|\n)((>[^\n]*\n)+)@ie", |
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355 | "'\\1</pre><blockquote class=\'level$i\'><pre>'" |
356 | .".stripslashes(preg_replace('@(^|<pre>|\n)>[ \\t\\r]*@i', '\\1', '\\2'))" |
357 | .".'</pre></blockquote><pre>'", |
358 | $res); |
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359 | } |
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360 | $res = preg_replace("@<pre>-- ?\n@", "<pre>\n-- \n", $res); |
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361 | $parts = preg_split("/\n-- ?\n/", $res); |
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362 | } |
363 | |
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364 | if (count($parts) > 1) { |
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365 | $sign = array_pop($parts); |
366 | if ($format == 'html') { |
367 | $res = join('<br/>-- <br/>', $parts); |
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368 | $sign = '<hr style="width: 100%; margin: 1em 0em; " />'.$sign.'<br/>'; |
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369 | } else { |
370 | $res = join('\n-- \n', $parts); |
371 | $sign = '</pre><hr style="width: 100%; margin: 1em 0em; " /><pre>'.$sign; |
372 | } |
373 | return $res.$sign; |
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374 | } else { |
375 | return $res; |
376 | } |
377 | } |
378 | |
379 | ?> |