classes/platalpage.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2007 Polytechnique.org                              *
   4  *  http://opensource.polytechnique.org/                                   *
   5  *                                                                         *
   6  *  This program is free software; you can redistribute it and/or modify   *
   7  *  it under the terms of the GNU General Public License as published by   *
   8  *  the Free Software Foundation; either version 2 of the License, or      *
   9  *  (at your option) any later version.                                    *
  10  *                                                                         *
  11  *  This program is distributed in the hope that it will be useful,        *
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
  14  *  GNU General Public License for more details.                           *
  15  *                                                                         *
  16  *  You should have received a copy of the GNU General Public License      *
  17  *  along with this program; if not, write to the Free Software            *
  18  *  Foundation, Inc.,                                                      *
  19  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
  20  ***************************************************************************/
  21
  22 require_once 'smarty/libs/Smarty.class.php';
  23
  24 abstract class PlatalPage extends Smarty
  25 {
  26     private $_page_type;
  27     private $_tpl;
  28     private $_errors;
  29     private $_failure;
  30     private $_jsonVars;
  31
  32     // {{{ function PlatalPage()
  33
  34     public function __construct($tpl, $type = SKINNED)
  35     {
  36         parent::Smarty();
  37
  38         global $globals;
  39
  40         $this->caching       = false;
  41         $this->config_overwrite = false;
  42         $this->use_sub_dirs  = false;
  43         $this->template_dir  = $globals->spoolroot."/templates/";
  44         $this->compile_dir   = $globals->spoolroot."/spool/templates_c/";
  45         array_unshift($this->plugins_dir, $globals->spoolroot."/plugins/");
  46         $this->config_dir    = $globals->spoolroot."/configs/";
  47
  48         $this->compile_check = !empty($globals->debug);
  49
  50         $this->changeTpl($tpl, $type);
  51         $this->_errors    = array();
  52         $this->_jsonVars  = array();
  53         $this->_failure   = false;
  54
  55         if ($globals->mode != 'rw') {
  56             $this->_errors[] = "En raison d'une maintenance, une partie des fonctionnalités du site sont actuellement"
  57                              . " désactivée, en particuliers aucune donnée ne sera sauvegardée";
  58         }
  59         $this->register_prefilter('at_to_globals');
  60         $this->addJsLink('xorg.js');
  61     }
  62
  63     // }}}
  64     // {{{ function changeTpl()
  65
  66     public function changeTpl($tpl, $type = SKINNED)
  67     {
  68       $this->_tpl       = $tpl;
  69       $this->_page_type = $type;
  70       $this->assign('xorg_tpl', $tpl);
  71     }
  72
  73     // }}}
  74     // {{{ function raw()
  75
  76     public function raw()
  77     {
  78         global $globals;
  79         $this->assign('globals', $globals);
  80         return $this->fetch($this->_tpl);
  81     }
  82
  83     // }}}
  84     // {{{ function _run()
  85
  86     protected function _run($skin)
  87     {
  88         global $globals, $TIME_BEGIN;
  89
  90         session_write_close();
  91
  92         $this->register_prefilter('trimwhitespace');
  93         $this->register_prefilter('form_force_encodings');
  94         $this->register_prefilter('wiki_include');
  95         $this->register_prefilter('if_has_perms');
  96         $this->assign('xorg_errors', $this->_errors);
  97         $this->assign('xorg_failure', $this->_failure);
  98         $this->assign('globals', $globals);
  99
 100         if (Env::has('json') && count($this->_jsonVars)) {
 101             return $this->jsonDisplay();
 102         }
 103
 104         if (Env::v('display') == 'light') {
 105             $this->_page_type = SIMPLE;
 106         } elseif (Env::v('display') == 'raw') {
 107             $this->_page_type = NO_SKIN;
 108         } elseif (Env::v('display') == 'full') {
 109             $this->_page_typ = SKINNED;
 110         }
 111
 112         switch ($this->_page_type) {
 113           case NO_SKIN:
 114             if (!($globals->debug & DEBUG_SMARTY)) {
 115                 error_reporting(0);
 116             }
 117             $this->display($this->_tpl);
 118             exit;
 119
 120           case SIMPLE:
 121             $this->assign('simple', true);
 122
 123           case SKINNED:
 124             $this->register_modifier('escape_html', 'escape_html');
 125             $this->default_modifiers = Array('@escape_html');
 126         }
 127         $this->register_outputfilter('hide_emails');
 128         $this->addJsLink('wiki.js');
 129         header("Accept-Charset: utf-8");
 130         if (Env::v('forceXml')) {
 131             header("Content-Type: text/xml; charset=utf-8");
 132         }
 133
 134         if (!$globals->debug) {
 135             error_reporting(0);
 136             $this->display($skin);
 137             exit;
 138         }
 139
 140         $this->assign('validate', true);
 141         if (!($globals->debug & DEBUG_SMARTY)) {
 142             error_reporting(0);
 143         }
 144         $START_SMARTY = microtime(true);
 145         $result = $this->fetch($skin);
 146         $ttime  = sprintf('Temps total: %.02fs (Smarty %.02fs) - Mémoire totale : %dKo<br />',
 147                           microtime(true) - $TIME_BEGIN, microtime(true) - $START_SMARTY,
 148                           memory_get_peak_usage(true) / 1024);
 149         if ($globals->debug & DEBUG_BT) {
 150             PlBacktrace::clean();
 151             $this->assign_by_ref('backtraces', PlBacktrace::$bt);
 152             $result = str_replace('@@BACKTRACE@@', $this->fetch('skin/common.backtrace.tpl'), $result);
 153         } else {
 154             $result = str_replace('@@BACKTRACE@@', '', $result);
 155         }
 156
 157         $replc  = "<span class='erreur'>VALIDATION HTML INACTIVE</span><br />";
 158         if ($globals->debug & DEBUG_VALID) {
 159             $fd = fopen($this->compile_dir."/valid.html","w");
 160             fwrite($fd, $result);
 161             fclose($fd);
 162
 163             exec($globals->spoolroot."/bin/devel/xhtml.validate.pl ".$this->compile_dir."/valid.html", $val);
 164             foreach ($val as $h) {
 165                 if (preg_match("/^X-W3C-Validator-Errors: (\d+)$/", $h, $m)) {
 166                     $replc = '<span style="color: #080;">HTML OK</span><br />';
 167                     if ($m[1]) {
 168                         $replc = "<span class='erreur'><a href='http://validator.w3.org/check?uri={$globals->baseurl}"
 169                             ."/valid.html&amp;ss=1#result'>{$m[1]} ERREUR(S) !!!</a></span><br />";
 170                     }
 171                     break;
 172                 }
 173             }
 174         }
 175
 176         echo str_replace("@HOOK@", $ttime.$replc, $result);
 177         exit;
 178     }
 179
 180     abstract public function run();
 181
 182     // }}}
 183     // {{{ function nb_errs()
 184
 185     public function nb_errs()
 186     {
 187         return count($this->_errors);
 188     }
 189
 190     // }}}
 191     // {{{ function trig()
 192
 193     public function trig($msg)
 194     {
 195         $this->_errors[] = $msg;
 196     }
 197
 198     // }}}
 199     // {{{ function kill()
 200
 201     public function kill($msg)
 202     {
 203         global $platal;
 204
 205         $this->assign('platal', $platal);
 206         $this->trig($msg);
 207         $this->_failure = true;
 208         $this->run();
 209     }
 210
 211     // }}}
 212     // {{{ function addJsLink
 213
 214     public function addJsLink($path)
 215     {
 216         $this->append('xorg_js', $path);
 217     }
 218
 219     // }}}
 220     // {{{ function addCssLink
 221
 222     public function addCssLink($path)
 223     {
 224         $this->append('xorg_css', $path);
 225     }
 226
 227     // }}}
 228     // {{{ function addCssInline
 229
 230     public function addCssInline($css)
 231     {
 232         if (!empty($css)) {
 233             $this->append('xorg_inline_css', $css);
 234         }
 235     }
 236
 237     // }}}
 238     // {{{ function setRssLink
 239
 240     public function setRssLink($title, $path)
 241     {
 242         $this->assign('xorg_rss', array('title' => $title, 'href' => $path));
 243     }
 244
 245     // }}}
 246     // {{{ function jsonDisplay
 247     protected function jsonDisplay()
 248     {
 249         header("Content-type: text/javascript; charset=utf-8");
 250         array_walk_recursive($this->_jsonVars, "escape_xorgDB");
 251         $jsonbegin = Env::v('jsonBegin');
 252         $jsonend = Env::v('jsonEnd');
 253         if (Env::has('jsonVar')) {
 254             $jsonbegin = Env::v('jsonVar').' = ';
 255             $jsonend = ';';
 256         } elseif (Env::has('jsonFunc')) {
 257             $jsonbegin = Env::v('jsonFunc').'(';
 258             $jsonend = ');';
 259         }
 260         echo $jsonbegin, json_encode($this->_jsonVars), $jsonend;
 261         exit;
 262     }
 263     // }}}
 264     // {{{ function jsonAssign
 265     public function jsonAssign($var, $value)
 266     {
 267         $this->_jsonVars[$var] = $value;
 268     }
 269
 270     // }}}
 271 }
 272
 273 function escape_xorgDB(&$item, $key)
 274 {
 275     if (is_a($item, 'XOrgDBIterator')) {
 276         $expanded = array();
 277         while ($a = $item->next()) {
 278             $expanded[] = $a;
 279         }
 280         $item = $expanded;
 281     }
 282 }
 283
 284 // {{{ function escape_html ()
 285
 286 /**
 287  * default smarty plugin, used to auto-escape dangerous html.
 288  *
 289  * < --> &lt;
 290  * > --> &gt;
 291  * " --> &quot;
 292  * & not followed by some entity --> &amp;
 293  */
 294 function escape_html($string)
 295 {
 296     if (is_string($string)) {
 297         return htmlspecialchars($string, ENT_QUOTES, 'UTF-8');
 298     } else {
 299         return $string;
 300     }
 301 }
 302
 303 // }}}
 304 // {{{ function at_to_globals()
 305
 306 /**
 307  * helper
 308  */
 309
 310 function _to_globals($s) {
 311     global $globals;
 312     $t = explode('.',$s);
 313     if (count($t) == 1) {
 314         return var_export($globals->$t[0],true);
 315     } else {
 316         return var_export($globals->$t[0]->$t[1],true);
 317     }
 318 }
 319
 320 /**
 321  * compilation plugin used to import $globals confing through #globals.foo.bar# directives
 322  */
 323
 324 function at_to_globals($tpl_source, &$smarty)
 325 {
 326     return preg_replace('/#globals\.([a-zA-Z0-9_.]+?)#/e', '_to_globals(\'\\1\')', $tpl_source);
 327 }
 328
 329 // }}}
 330 // {{{  function trimwhitespace
 331
 332 function trimwhitespace($source, &$smarty)
 333 {
 334     $tags = '(script|pre|textarea)';
 335     preg_match_all("!<$tags.*?>.*?</(\\1)>!ius", $source, $tagsmatches);
 336     $source = preg_replace("!<$tags.*?>.*?</(\\1)>!ius", "&&&tags&&&", $source);
 337
 338     // remove all leading spaces, tabs and carriage returns NOT
 339     // preceeded by a php close tag.
 340     $source = preg_replace('/((?<!\?>)\n)[\s]+/m', '\1', $source);
 341     $source = preg_replace("!&&&tags&&&!e",  'array_shift($tagsmatches[0])', $source);
 342
 343     return $source;
 344 }
 345
 346 // }}}
 347 // {{{ function wiki_include
 348
 349 function wiki_include($source, &$smarty)
 350 {
 351     return preg_replace('/\{include( [^}]*)? wiki=([^} ]+)(.*?)\}/ui',
 352                         '{include\1 file="../spool/wiki.d/cache_\2.tpl"\3 included=1}',
 353                         $source);
 354 }
 355
 356 // }}}
 357 //{{{ function hasPerm
 358
 359 function if_has_perms($source, &$smarty)
 360 {
 361     $source = preg_replace('/\{if([^}]*) (\!?)hasPerms\(([^)]+)\)([^}]*)\}/',
 362                            '{if\1 \2$smarty.session.perms->hasFlagCombination(\3)\4}',
 363                            $source);
 364     return preg_replace('/\{if([^}]*) (\!?)hasPerm\(([^)]+)\)([^}]*)\}/',
 365                         '{if\1 \2($smarty.session.perms && $smarty.session.perms->hasFlag(\3))\4}',
 366                         $source);
 367 }
 368
 369 // }}}
 370 // {{{
 371
 372 function form_force_encodings($source, &$smarty)
 373 {
 374     return preg_replace('/<form[^\w]/',
 375                         '\0 accept-charset="utf-8" ',
 376                         $source);
 377 }
 378
 379 // }}}
 380 // {{{ function hide_emails
 381
 382 function _hide_email($source)
 383 {
 384     $source = str_replace("\n", '', $source);
 385     return '<script type="text/javascript">//<![CDATA[' . "\n" .
 386            'Nix.decode("' . addslashes(str_rot13($source)) . '");' . "\n" .
 387            '//]]></script>';
 388 }
 389
 390 function hide_emails($source, &$smarty)
 391 {
 392     if (!strpos($source, '@')) {
 393         return $source;
 394     }
 395
 396     //prevent email replacement in <script> and <textarea>
 397     $tags = '(script|textarea|select)';
 398     preg_match_all("!<$tags.*?>.*?</(\\1)>!ius", $source, $tagsmatches);
 399     $source = preg_replace("!<$tags.*?>.*?</(\\1)>!ius", "&&&tags&&&", $source);
 400
 401     //catch all emails in <a href="mailto:...">
 402     preg_match_all("!<a[^>]+href=[\"'][^\"']*[-a-z0-9+_.]+@[-a-z0-9_.]+[^\"']*[\"'].*?>.*?</a>!ius", $source, $ahref);
 403     $source = preg_replace("!<a[^>]+href=[\"'][^\"']*[-a-z0-9+_.]+@[-a-z0-9_.]+[^\"']*[\"'].*?>.*?</a>!ius", '&&&ahref&&&', $source);
 404
 405     //prevant replacement in tag attributes
 406     preg_match_all("!<[^>]+[-a-z0-9_+.]+@[-a-z0-9_.]+.+?>!ius", $source, $misc);
 407     $source = preg_replace("!<[^>]+[-a-z0-9_+.]+@[-a-z0-9_.]+.+?>!ius", '&&&misc&&&', $source);
 408
 409     //catch !
 410     $source = preg_replace('!([-a-z0-9_+.]+@[-a-z0-9_.]+)!iue', '_hide_email("\1")', $source);
 411     $source = preg_replace('!&&&ahref&&&!e', '_hide_email(array_shift($ahref[0]))', $source);
 412
 413     // restore data
 414     $source = preg_replace('!&&&misc&&&!e', 'array_shift($misc[0])', $source);
 415     $source = preg_replace("!&&&tags&&&!e",  'array_shift($tagsmatches[0])', $source);
 416
 417     return $source;
 418 }
 419
 420 // }}}
 421
 422 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
 423 ?>