2 /********************************************************************************
3 * include/misc.inc.php : Misc functions
4 * -------------------------
6 * This file is part of the banana distribution
7 * Copyright: See COPYING files that comes with this distribution
8 ********************************************************************************/
10 /********************************************************************************
14 function _b_($str) { return utf8_decode(dgettext('banana', utf8_encode($str))); }
16 function to_entities($str) {
17 require_once dirname(__FILE__
).'/utf8.php';
18 return utf8entities(htmlentities($str, ENT_NOQUOTES
, 'UTF-8'));
21 function is_utf8($s) { return iconv('utf-8', 'utf-8', $s) == $s; }
23 function textFormat_translate($format)
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 $format;
33 /** Redirect to the page with the given parameter
36 function redirectInBanana($params)
38 header('Location: ' . makeLink($params));
41 /** Make a link using the given parameters
42 * @param ARRAY params, the parameters with
45 * - group = group name
46 * - artid/first = article id the the group
47 * - subscribe = to show the subscription page
48 * - action = action to do (new, cancel, view)
49 * - part = to show the given MIME part of the article
50 * - pj = to get the given attachment
51 * - xface = to make a link to an xface
53 * Can be overloaded by defining a hook_makeLink function
55 function makeLink($params)
57 if (function_exists('hook_makeLink')
58 && $res = hook_makeLink($params)) {
61 $proto = empty($_SERVER['HTTPS']) ?
'http://' : 'https://';
62 $host = $_SERVER['HTTP_HOST'];
63 $file = $_SERVER['PHP_SELF'];
65 if (isset($params['xface'])) {
66 $file = dirname($file) . '/xface.php';
67 $get = 'face=' . $params['xface'];
68 } else if (count($params) != 0) {
70 foreach ($params as $key=>$value) {
71 if (strlen($get) != 1) {
74 $get .= $key . '=' . $value;
80 return $proto . $host . $file . $get;
83 /** Format a link to be use in a link
86 function makeHREF($params, $text = null
, $popup = null
)
88 $link = makeLink($params);
92 if (!is_null($popup)) {
93 $popup = ' title="' . $popup . '"';
96 if (isset($params['action']) && $params['action'] == 'view') {
97 $target = ' target="_blank"';
99 return '<a href="' . htmlentities($link) . $target . '"' . $popup . '>' . $text . '</a>';
102 /** Format tree images links
103 * @param img STRING Image name (without extension)
104 * @param alt STRING alternative string
105 * @param width INT to force width of the image (null if not defined)
107 * This function can be overloaded by defining hook_makeImg()
109 function makeImg($img, $alt, $height = null
, $width = null
)
111 if (function_exists('hook_makeImg')
112 && $res = hook_makeImg($img, $alt, $height, $width)) {
116 if (!is_null($width)) {
117 $width = ' width="' . $width . '"';
119 if (!is_null($height)) {
120 $height = ' height="' . $height . '"';
123 $proto = empty($_SERVER['HTTPS']) ?
'http://' : 'https://';
124 $host = $_SERVER['HTTP_HOST'];
125 $file = dirname($_SERVER['PHP_SELF']) . '/img/' . $img . '.gif';
126 $url = $proto . $host . $file;
128 return '<img src="' . $url . '"' . $height . $width . ' alt="' . $alt . '" />';
131 /********************************************************************************
139 * @desc Strip forbidden tags and delegate tag-source check to removeEvilAttributes()
141 function removeEvilTags($source)
143 $allowedTags = '<h1><b><i><a><ul><li><pre><hr><blockquote><img><br><font><p><small><big><sup><sub><code><em>';
144 $source = preg_replace('|</div>|i', '<br />', $source);
145 $source = strip_tags($source, $allowedTags);
146 return preg_replace('/<(.*?)>/ie', "'<'.removeEvilAttributes('\\1').'>'", $source);
152 * @desc Strip forbidden attributes from a tag
154 function removeEvilAttributes($tagSource)
156 $stripAttrib = 'javascript:|onclick|ondblclick|onmousedown|onmouseup|onmouseover|'.
157 'onmousemove|onmouseout|onkeypress|onkeydown|onkeyup';
158 return stripslashes(preg_replace("/$stripAttrib/i", '', $tagSource));
161 /** Convert html to plain text
163 function htmlToPlainText($res)
165 $res = trim(html_entity_decode(strip_tags($res, '<div><br><p>')));
166 $res = preg_replace("@</?(br|p|div)[^>]*>@i", "\n", $res);
167 if (!is_utf8($res)) {
168 $res = utf8_encode($res);
173 /********************************************************************************
177 /** Convert richtext to html
179 function richtextToHtml($source)
181 $tags = Array('bold' => 'b',
183 'smaller' => 'small',
186 'subscript' => 'sub',
187 'superscript' => 'sup',
188 'excerpt' => 'blockquote',
193 // clean unsupported tags
194 $protectedTags = '<signature><lt><comment><'.join('><', array_keys($tags)).'>';
195 $source = strip_tags($source, $protectedTags);
197 // convert richtext tags to html
198 foreach (array_keys($tags) as $tag) {
199 $source = preg_replace('@(</?)'.$tag.'([^>]*>)@i', '\1'.$tags[$tag].'\2', $source);
202 // some special cases
203 $source = preg_replace('@<signature>@i', '<br>-- <br>', $source);
204 $source = preg_replace('@</signature>@i', '', $source);
205 $source = preg_replace('@<lt>@i', '<', $source);
206 $source = preg_replace('@<comment[^>]*>((?:[^<]|<(?!/comment>))*)</comment>@i', '<!-- \1 -->', $source);
207 return removeEvilAttributes($source);
210 /********************************************************************************
214 function _headerdecode($charset, $c, $str) {
215 $s = ($c == 'Q' ||
$c == 'q') ?
quoted_printable_decode($str) : base64_decode($str);
216 $s = iconv($charset, 'iso-8859-15', $s);
217 return str_replace('_', ' ', $s);
220 function headerDecode($value) {
221 $val = preg_replace('/(=\?[^?]*\?[BQbq]\?[^?]*\?=) (=\?[^?]*\?[BQbq]\?[^?]*\?=)/', '\1\2', $value);
222 return preg_replace('/=\?([^?]*)\?([BQbq])\?([^?]*)\?=/e', '_headerdecode("\1", "\2", "\3")', $val);
225 function headerEncode($value, $trim = 0) {
227 if (strlen($value) > $trim) {
228 $value = substr($value, 0, $trim) . "[...]";
231 return "=?UTF-8?B?".base64_encode($value)."?=";
234 function header_translate($hdr) {
236 case 'from': return _b_('De');
237 case 'subject': return _b_('Sujet');
238 case 'newsgroups': return _b_('Forums');
239 case 'followup-to': return _b_('Suivi-Ã ');
240 case 'date': return _b_('Date');
241 case 'organization': return _b_('Organisation');
242 case 'references': return _b_('Références');
243 case 'x-face': return _b_('Image');
245 if (function_exists('hook_headerTranslate')
246 && $res = hook_headerTranslate($hdr)) {
253 function formatDisplayHeader($_header,$_text) {
257 return formatDate($_text);
262 $groups = preg_split("/[\t ]*,[\t ]*/",$_text);
263 foreach ($groups as $g) {
264 $res .= makeHREF(Array('group' => $g), $g) . ', ';
266 return substr($res,0, -2);
269 return formatFrom($_text);
274 $text = str_replace("><","> <",$_text);
275 $text = preg_split("/[ \t]/",strtr($text,$banana->spool
->ids
));
276 $parents = preg_grep("/^\d+$/",$text);
277 $p = array_pop($parents);
282 $p = $banana->spool
->overview
[$p]->parent
;
284 foreach (array_reverse($par_ok) as $p) {
285 $rsl .= makeHREF(Array('group' => $banana->spool
->group
), $ndx) . ' ';
291 return '<img src="' . makeLink(Array('xface' => urlencode(base64_encode($_text)))) .'" alt="x-face" />';
294 if (function_exists('hook_formatDisplayHeader')
295 && $res = hook_formatDisplayHeader($_header, $_text))
299 return htmlentities($_text);
303 /********************************************************************************
307 function formatDate($_text) {
308 return strftime("%A %d %B %Y, %H:%M (fuseau serveur)", strtotime($_text));
311 function fancyDate($stamp) {
312 $today = intval(time() / (24*3600));
313 $dday = intval($stamp / (24*3600));
315 if ($today == $dday) {
317 } elseif ($today == 1 +
$dday) {
318 $format = _b_('hier')." %H:%M";
319 } elseif ($today < 7 +
$dday) {
320 $format = '%a %H:%M';
322 $format = '%a %e %b';
324 return strftime($format, $stamp);
327 function formatFrom($text) {
328 # From: mark@cbosgd.ATT.COM
329 # From: mark@cbosgd.ATT.COM (Mark Horton)
330 # From: Mark Horton <mark@cbosgd.ATT.COM>
331 $mailto = '<a href="mailto:';
333 $result = htmlentities($text);
334 if (preg_match("/^([^ ]+)@([^ ]+)$/",$text,$regs)) {
335 $result="$mailto{$regs[1]}@{$regs[2]}\">".htmlentities($regs[1]."@".$regs[2])."</a>";
337 if (preg_match("/^([^ ]+)@([^ ]+) \((.*)\)$/",$text,$regs)) {
338 $result="$mailto{$regs[1]}@{$regs[2]}\">".htmlentities($regs[3])."</a>";
340 if (preg_match("/^\"?([^<>\"]+)\"? +<(.+)@(.+)>$/",$text,$regs)) {
341 $result="$mailto{$regs[2]}@{$regs[3]}\">".htmlentities($regs[1])."</a>";
343 return preg_replace("/\\\(\(|\))/","\\1",$result);
346 function displayshortcuts($first = -1) {
348 extract($banana->state
);
350 $res = '<div class="banana_scuts">';
351 $res .= '[' . makeHREF(Array(), _b_('Liste des forums')) . '] ';
352 if (is_null($group)) {
353 return $res.'[' . makeHREF(Array('subscribe' => 1), _b_('Abonnements')) . ']</div>';
356 $res .= '[' . makeHREF(Array('group' => $group), $group) . '] ';
358 if (is_null($artid)) {
359 $res .= '[' . makeHREF(Array('group' => $group,
361 _b_('Nouveau message'))
363 if (sizeof($banana->spool
->overview
)>$banana->tmax
) {
364 $res .= '<br />Page : ';
365 $n = intval(log(count($banana->spool
->overview
), 10))+
1;
367 for ($ndx = 1 ; $ndx <= sizeof($banana->spool
->overview
) ; $ndx +
= $banana->tmax
) {
371 $fmt = makeHREF(Array('group' => $group,
374 '%0' . $n . 'u-%0' . $n . 'u')
378 $res .= sprintf($fmt, $ndx, min($ndx+
$banana->tmax
-1,sizeof($banana->spool
->overview
)));
382 $res .= '[' . makeHREF(Array('group' => $group,
387 if ($banana->post
&& $banana->post
->checkcancel()) {
388 $res .= '[' . makeHREF(Array('group' => $group,
390 'action' => 'cancel'),
391 _b_('Annuler ce message'))
395 return $res.'</div>';
398 /********************************************************************************
399 * FORMATTING STUFF : BODY
402 function autoformat($text)
405 $length = $banana->wrap
;
407 $cmd = "echo ".escapeshellarg($text)." | perl -MText::Autoformat -e 'autoformat {left=>1, right=>$length, all=>1 };'";
408 exec($cmd, $result, $ret);
410 $result = split("\n", $text);
415 function wrap($text, $_prefix="", $_force=false
)
417 $parts = preg_split("/\n-- ?\n/", $text);
418 if (count($parts) >1) {
419 $sign = "\n-- \n" . array_pop($parts);
420 $text = join("\n-- \n", $parts);
426 $url = $banana->url_regexp
;
427 $length = $banana->wrap
;
428 $max = $length +
($length/10);
429 $splits = split("\n", $text);
433 foreach ($splits as $line) {
434 if ($_force ||
strlen($line) > $max) {
435 if (preg_match("!^(.*)($url)(.*)!i", $line, $matches) && strlen($matches[2]) > $length && strlen($matches) < 900) {
436 if (strlen($matches[1]) != 0) {
437 array_push($next, rtrim($matches[1]));
438 if (strlen($matches[1]) > $max) {
444 $result = array_merge($result, autoformat(join("\n", $next)));
446 $result = array_merge($result, $next);
450 array_push($result, $matches[2]);
452 if (strlen($matches[6]) != 0) {
453 array_push($next, ltrim($matches[6]));
454 if (strlen($matches[6]) > $max) {
460 array_push($next, $line);
463 array_push($next, $line);
467 $result = array_merge($result, autoformat(join("\n", $next)));
469 $result = array_merge($result, $next);
472 return $_prefix.join("\n$_prefix", $result).($_prefix ?
'' : $sign);
475 function cutlink($link)
479 if (strlen($link) > $banana->wrap
) {
480 $link = substr($link, 0, $banana->wrap
- 3)."...";
485 function cleanurl($url)
487 $url = str_replace('@', '%40', $url);
488 return '<a href="'.$url.'" title="'.$url.'">'.cutlink($url).'</a>';
491 function formatbody($_text, $format='plain', $flowed=false
)
493 if ($format == 'html') {
494 $res = '<br/>'.html_entity_decode(to_entities(removeEvilTags($_text))).'<br/>';
495 } else if ($format == 'richtext') {
496 $res = '<br/>'.html_entity_decode(to_entities(richtextToHtml($_text))).'<br/>';
498 $res = "\n\n" . to_entities(wrap($_text, "", $flowed))."\n\n";
499 $formatting = Array('\*' => 'strong',
502 foreach ($formatting as $limit=>$mark) {
503 $res = preg_replace('@(\W)' . $limit . '(\w+)' . $limit . '(\W)@'
504 ,'\1<' . $mark . '>\2</' . $mark . '>\3'
509 if ($format != 'html') {
511 $url = $banana->url_regexp
;
512 $res = preg_replace("/(<|>|")/", " \\1 ", $res);
513 $res = preg_replace("!$url!ie", "'\\1'.cleanurl('\\2').'\\3'", $res);
514 $res = preg_replace('/(["\[])?(?:mailto:)?([a-z0-9.\-+_]+@[a-z0-9.\-+_]+)(["\]])?/i', '\1<a href="mailto:\2">\2</a>\3', $res);
515 $res = preg_replace("/ (<|>|") /", "\\1", $res);
517 if ($format == 'richtext') {
522 if ($format == 'html') {
523 $res = preg_replace("@(</p>)\n?-- ?\n?(<p[^>]*>|<br[^>]*>)@", "\\1<br/>-- \\2", $res);
524 $res = preg_replace("@<br[^>]*>\n?-- ?\n?(<p[^>]*>)@", "<br/>-- <br/>\\2", $res);
525 $res = preg_replace("@(<pre[^>]*>)\n?-- ?\n@", "<br/>-- <br/>\\1", $res);
526 $parts = preg_split("@(:?<p[^>]*>\n?-- ?\n?</p>|<br[^>]*>\n?-- ?\n?<br[^>]*>)@", $res);
528 while (preg_match("@(^|<pre>|\n)>@i", $res)) {
529 $res = preg_replace("@(^|<pre>|\n)((>[^\n]*\n)+)@ie",
530 "'\\1</pre><blockquote><pre>'"
531 .".stripslashes(preg_replace('@(^|<pre>|\n)>[ \\t\\r]*@i', '\\1', '\\2'))"
532 .".'</pre></blockquote><pre>'",
535 $res = preg_replace("@<pre>-- ?\n@", "<pre>\n-- \n", $res);
536 $parts = preg_split("/\n-- ?\n/", $res);
539 if (count($parts) > 1) {
540 $sign = array_pop($parts);
541 if ($format == 'html') {
542 $res = join('<br/>-- <br/>', $parts);
543 $sign = '<hr style="width: 100%; margin: 1em 0em; " />'.$sign.'<br/>';
545 $res = join('\n-- \n', $parts);
546 $sign = '</pre><hr style="width: 100%; margin: 1em 0em; " /><pre>'.$sign;
554 // vim:set et sw=4 sts=4 ts=4