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