| 1 | <?php |
| 2 | /*************************************************************************** |
| 3 | * Copyright (C) 2003-2010 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 | /** This namespace groups all the methods relative to the integration |
| 23 | * of PmWiki into plat/al. |
| 24 | * |
| 25 | * pagename: A page name is NameSpace.Page and must be acceed trough |
| 26 | * NameSpace/Page. |
| 27 | */ |
| 28 | class PlWikiPage |
| 29 | { |
| 30 | static private $permLevels = array('public' => 'Public', |
| 31 | 'logged' => 'Connecté', |
| 32 | 'mdp' => 'Authentifié', |
| 33 | 'admin' => 'Admin'); |
| 34 | static private $defaulPerms = array('logged', 'admin'); |
| 35 | |
| 36 | public $name; |
| 37 | public $path; |
| 38 | |
| 39 | private $content = null; |
| 40 | private $perms = null; |
| 41 | |
| 42 | /** Build a new page from a PmWiki page name (ie NameSpace.Page). |
| 43 | */ |
| 44 | public function __construct($n) |
| 45 | { |
| 46 | if (!is_utf8($n)) { |
| 47 | $n = utf8_encode($n); |
| 48 | } |
| 49 | $this->name = $n; |
| 50 | $this->path = str_replace('.', '/', $n); |
| 51 | } |
| 52 | |
| 53 | /** Return the filename. |
| 54 | */ |
| 55 | public function filename() |
| 56 | { |
| 57 | return self::workDir() . '/' . $this->name; |
| 58 | } |
| 59 | |
| 60 | /** Return the filename for the cache file. |
| 61 | */ |
| 62 | public function cacheFilename() |
| 63 | { |
| 64 | return self::workDir() . '/cache_' . $this->name . '.tpl'; |
| 65 | } |
| 66 | |
| 67 | /** Remove the cache for the current page. |
| 68 | */ |
| 69 | public function removePageCache() |
| 70 | { |
| 71 | @unlink($this->cacheFilename()); |
| 72 | global $globals; |
| 73 | $page = glob($globals->spoolroot . '/spool/templates_c/*cache_' . $this->name . '.tpl.php'); |
| 74 | if (count($page) > 0) { |
| 75 | @unlink($page[0]); |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | /** Fetch the content of the wiki page. |
| 80 | */ |
| 81 | private function fetchContent() |
| 82 | { |
| 83 | if (!is_null($this->content)) { |
| 84 | return; |
| 85 | } |
| 86 | $file = $this->filename(); |
| 87 | if (!is_file($file)) { |
| 88 | return; |
| 89 | } |
| 90 | $lines = explode("\n", file_get_contents($file)); |
| 91 | $this->content = array(); |
| 92 | foreach ($lines as $line) { |
| 93 | @list($k, $v) = explode('=', $line, 2); |
| 94 | $this->content[$k] = $v; |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | /** Save the content of the wiki page based on the |
| 99 | * fetched content. |
| 100 | */ |
| 101 | private function saveContent() |
| 102 | { |
| 103 | if (is_null($this->content)) { |
| 104 | return false; |
| 105 | } |
| 106 | $lines = array(); |
| 107 | foreach ($this->content as $k => $v) { |
| 108 | $lines[] = "$k=$v"; |
| 109 | } |
| 110 | return file_put_contents($this->filename(), implode("\n", $lines)) !== false; |
| 111 | } |
| 112 | |
| 113 | /** Get a field from the wiki content. |
| 114 | */ |
| 115 | public function getField($name) |
| 116 | { |
| 117 | $this->fetchContent(); |
| 118 | return @$this->content[$name]; |
| 119 | } |
| 120 | |
| 121 | /** Fetch the permissions. |
| 122 | */ |
| 123 | private function fetchPerms() |
| 124 | { |
| 125 | if (!is_null($this->perms)) { |
| 126 | return; |
| 127 | } |
| 128 | $this->fetchContent(); |
| 129 | if (isset($this->content['platal_perms'])) { |
| 130 | $this->perms = explode(':', $this->content['platal_perms']); |
| 131 | } else { |
| 132 | $this->perms = self::$defaulPerms; |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | /** Return read perms. |
| 137 | */ |
| 138 | public function readPerms() |
| 139 | { |
| 140 | if (is_null($this->perms)) { |
| 141 | $this->fetchPerms(); |
| 142 | } |
| 143 | return $this->perms[0]; |
| 144 | } |
| 145 | |
| 146 | /** Check if the user can read the page. |
| 147 | */ |
| 148 | public function canRead() |
| 149 | { |
| 150 | return self::havePerms($this->readPerms()); |
| 151 | } |
| 152 | |
| 153 | /** Return write perms. |
| 154 | */ |
| 155 | public function writePerms() |
| 156 | { |
| 157 | if (is_null($this->perms)) { |
| 158 | $this->fetchPerms(); |
| 159 | } |
| 160 | return $this->perms[1]; |
| 161 | } |
| 162 | |
| 163 | /** Check if the user can write the page. |
| 164 | */ |
| 165 | public function canWrite() |
| 166 | { |
| 167 | return self::havePerms($this->writePerms()); |
| 168 | } |
| 169 | |
| 170 | /** Set the permission level for the page. |
| 171 | */ |
| 172 | public function setPerms($read, $write) |
| 173 | { |
| 174 | $this->fetchContent(); |
| 175 | if (is_null($this->content)) { |
| 176 | return false; |
| 177 | } |
| 178 | $this->content['platal_perms'] = $read . ':' . $write; |
| 179 | $this->perms = array($read, $write); |
| 180 | return $this->saveContent(); |
| 181 | } |
| 182 | |
| 183 | |
| 184 | /** Check permission for RSS feed. |
| 185 | */ |
| 186 | public function prepareFeed() |
| 187 | { |
| 188 | if ($this->canRead()) { |
| 189 | return; |
| 190 | } |
| 191 | $uid = Platal::session()->tokenAuth(Get::v('user'), Get::v('hash')); |
| 192 | if ($this->canRead()) { |
| 193 | return; |
| 194 | } |
| 195 | exit; |
| 196 | } |
| 197 | |
| 198 | /** Apply the read permissions for the current page. |
| 199 | */ |
| 200 | public function applyReadPerms() |
| 201 | { |
| 202 | if ($this->canRead()) { |
| 203 | return; |
| 204 | } |
| 205 | $this->applyPerms($this->readPerms()); |
| 206 | } |
| 207 | |
| 208 | /** Apply the write permissions for the current page. |
| 209 | */ |
| 210 | public function applyWritePerms() |
| 211 | { |
| 212 | if ($this->canWrite()) { |
| 213 | return; |
| 214 | } |
| 215 | $this->applyPerms($this->writePerms()); |
| 216 | } |
| 217 | |
| 218 | /** Build the cache for the page. |
| 219 | */ |
| 220 | public function buildCache() |
| 221 | { |
| 222 | global $globals; |
| 223 | if (is_file($this->cacheFilename())) { |
| 224 | return; |
| 225 | } |
| 226 | system('wget --no-check-certificate ' . escapeshellarg($globals->baseurl . '/' . $this->path) . ' -O /dev/null'); |
| 227 | } |
| 228 | |
| 229 | /** Remove the page. |
| 230 | */ |
| 231 | public function delete() |
| 232 | { |
| 233 | $file = $this->filename(); |
| 234 | $cache = $this->cacheFilename(); |
| 235 | if (is_file($cache)) { |
| 236 | unlink($cache); |
| 237 | } |
| 238 | if (!is_file($file)) { |
| 239 | return false; |
| 240 | } |
| 241 | unlink($file); |
| 242 | return true; |
| 243 | } |
| 244 | |
| 245 | /** Return the wiki storage dir. |
| 246 | */ |
| 247 | public static function workDir() |
| 248 | { |
| 249 | global $globals; |
| 250 | return $globals->spoolroot . '/spool/wiki.d'; |
| 251 | } |
| 252 | |
| 253 | /** Clear wiki cache. |
| 254 | */ |
| 255 | public static function clearCache() |
| 256 | { |
| 257 | system('rm -f ' . self::workDir() . '/cache_*'); |
| 258 | } |
| 259 | |
| 260 | |
| 261 | /** Search links in the a page |
| 262 | */ |
| 263 | private static function findLinks($line, $groupname) |
| 264 | { |
| 265 | $links = array(); |
| 266 | if (preg_match_all('@\[\[([^~][^\]\|\?#]*)((\?|#)[^\]\|]+)?(\\|[^\]]+)?\]\]@', $line, $matches, PREG_OFFSET_CAPTURE)) { |
| 267 | foreach ($matches[1] as $j => $link) if (!preg_match('@http://@', $link[0])) { |
| 268 | $mylink = str_replace('/','.',trim($link[0])); |
| 269 | $sup = trim(substr($matches[2][$j][0],1)); |
| 270 | $alt = trim(substr($matches[4][$j][0],1)); |
| 271 | $newlink = str_replace(' ','',ucwords($mylink)); |
| 272 | if (strpos($newlink,'.') === false) { |
| 273 | $newlink = $groupname.'.'.$newlink; |
| 274 | } |
| 275 | if (!$alt && $mylink != $newlink) { |
| 276 | $alt = trim($link[0]); |
| 277 | } |
| 278 | $links[] = array( |
| 279 | 'pos' => $matches[0][$j][1], |
| 280 | 'size' => strlen($matches[0][$j][0]), |
| 281 | 'href' => $newlink, |
| 282 | 'sup' => $sup, |
| 283 | 'alt' => $alt, |
| 284 | 'group' => substr($mylink, 0, strpos($mylink, '.'))); |
| 285 | } |
| 286 | } |
| 287 | return $links; |
| 288 | } |
| 289 | |
| 290 | public function rename($newname, $changeLinks = true) |
| 291 | { |
| 292 | $newpage = new PlWikiPage(str_replace('/', '.', $newname)); |
| 293 | $cache = $this->cacheFilename(); |
| 294 | if (is_file($cache)) { |
| 295 | unlink($cache); |
| 296 | } |
| 297 | |
| 298 | list($groupname, ) = explode('.', $this->name); |
| 299 | list($newgroupname, ) = explode('.', $newpage->name); |
| 300 | |
| 301 | $file = $this->filename(); |
| 302 | $newfile = $newpage->filename(); |
| 303 | if (!is_file($file)) { |
| 304 | // old page doesn't exist |
| 305 | return false; |
| 306 | } |
| 307 | if (!rename($file, $newfile)) { |
| 308 | // impossible to renama page |
| 309 | return false; |
| 310 | } |
| 311 | |
| 312 | if (!$changeLinks) { |
| 313 | $this->name = $newpage->name; |
| 314 | $this->path = $newpage->path; |
| 315 | return true; |
| 316 | } |
| 317 | |
| 318 | $changedLinks = 0; |
| 319 | // change name inside this folder and ingroup links if changing group |
| 320 | $lines = explode("\n", file_get_contents($newfile)); |
| 321 | $changed = false; |
| 322 | foreach ($lines as $i => $line) { |
| 323 | list($k, $v) = explode('=', $line, 2); |
| 324 | if ($k == 'name' && $v == $pagename_dots) { |
| 325 | $lines[$i] = 'name=' . $newpage->name; |
| 326 | $changed = true; |
| 327 | } else if ($groupname != $newgroupname) { |
| 328 | $links = self::findLinks($line, $groupname); |
| 329 | $newline = ''; |
| 330 | $last = 0; |
| 331 | foreach ($links as $link) { |
| 332 | if ($link['group'] == $groupname) { |
| 333 | $newline .= substr($line, $last, $link['pos']); |
| 334 | $newline .= '[['.$link['href'].$link['sup'].($link['alt']?(' |'.$link['alt']):'').']]'; |
| 335 | $last = $link['pos']+$link['size']; |
| 336 | $changedLinks++; |
| 337 | } |
| 338 | } |
| 339 | if ($last != 0) { |
| 340 | $newline .= substr($line, $last); |
| 341 | $lines[$i] = $newline; |
| 342 | $changed = true; |
| 343 | } |
| 344 | } |
| 345 | } |
| 346 | file_put_contents($newfile, join("\n", $lines)); |
| 347 | |
| 348 | // change wiki links in all wiki pages |
| 349 | $endname = substr($pagename_dots, strpos($this->name, '.') + 1); |
| 350 | $pages = array(); |
| 351 | exec('grep ' . $endname . ' ' . self::workDir() . '/* -sc', $pages); |
| 352 | foreach($pages as $line) { |
| 353 | if (preg_match('%/([^/:]+):([0-9]+)$%', $line, $vals) && $vals[2] > 0) { |
| 354 | $inpage = $vals[1]; |
| 355 | $lines = explode("\n", file_get_contents(self::workDir().'/'.$inpage)); |
| 356 | $changed = false; |
| 357 | // find all wiki links in page and change if linked to this page |
| 358 | foreach ($lines as $i => $line) { |
| 359 | $links = self::findLinks($line, substr($inpage, 0, strpos($inpage, '.'))); |
| 360 | $newline = ''; |
| 361 | $last = 0; |
| 362 | foreach ($links as $link) { |
| 363 | if ($link['href'] == $pagename_dots) { |
| 364 | $newline .= substr($line, $last, $link['pos']); |
| 365 | $newline .= '[[' . $newname_dots . $link['sup'] . ($link['alt'] ? (' |' . $link['alt']) : '') . ']]'; |
| 366 | $last = $link['pos'] + $link['size']; |
| 367 | $changedLinks++; |
| 368 | } |
| 369 | } |
| 370 | if ($last != 0) { |
| 371 | $newline .= substr($line, $last); |
| 372 | $lines[$i] = $newline; |
| 373 | $changed = true; |
| 374 | } |
| 375 | } |
| 376 | if ($changed) { |
| 377 | file_put_contents(self::workDir() . '/' . $inpage, join("\n", $lines)); |
| 378 | } |
| 379 | } |
| 380 | } |
| 381 | if ($changedLinks > 0) { |
| 382 | return $changedLinks; |
| 383 | } |
| 384 | $this->name = $newpage->name; |
| 385 | $this->path = $newpage->path; |
| 386 | return true; |
| 387 | } |
| 388 | |
| 389 | /** Return the authentication level translation table. |
| 390 | */ |
| 391 | public static function permOptions() |
| 392 | { |
| 393 | return array('public' => 'Public', |
| 394 | 'logged' => 'Connecté', |
| 395 | 'mdp' => 'Authentifié', |
| 396 | 'admin' => 'Admin'); |
| 397 | } |
| 398 | |
| 399 | /** Check permissions. |
| 400 | */ |
| 401 | public static function havePerms($perm) |
| 402 | { |
| 403 | switch ($perm) { |
| 404 | case 'public': |
| 405 | return true; |
| 406 | case 'logged': |
| 407 | return S::logged(); |
| 408 | case 'mdp': |
| 409 | return S::identified(); |
| 410 | case 'admin': |
| 411 | return S::admin(); |
| 412 | default: |
| 413 | return false; |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | /** Apply permissions. |
| 418 | */ |
| 419 | public static function applyPerms($perm) |
| 420 | { |
| 421 | switch ($perm) { |
| 422 | case 'public': |
| 423 | return; |
| 424 | case 'logged': |
| 425 | $ok = Platal::session()->start(AUTH_PUBLIC + 1); |
| 426 | break; |
| 427 | default: |
| 428 | $ok = Platal::session()->start(Platal::session()->sureLevel()); |
| 429 | break; |
| 430 | } |
| 431 | if (!$ok) { |
| 432 | global $platal; |
| 433 | $page =& Platal::page(); |
| 434 | $platal->force_login($page); |
| 435 | } |
| 436 | } |
| 437 | |
| 438 | /** Return the current page. |
| 439 | */ |
| 440 | public static function currentPage() |
| 441 | { |
| 442 | if (!Get::v('n')) { |
| 443 | return null; |
| 444 | } |
| 445 | |
| 446 | $words = explode('/', trim(Get::v('n'), '/')); |
| 447 | if (count($words) == 2) { |
| 448 | return new PlWikiPage(join('.', $words)); |
| 449 | } |
| 450 | |
| 451 | // We are on NameSpace.Page, redirect to NameSpace/Page |
| 452 | array_unshift($words, $words[0]); |
| 453 | $b = array_pop($words); |
| 454 | $a = array_pop($words); |
| 455 | |
| 456 | pl_redirect($a . '/' . $b); |
| 457 | } |
| 458 | |
| 459 | /** List wiki pages. |
| 460 | */ |
| 461 | public static function listPages() |
| 462 | { |
| 463 | $wiki_pages = array(); |
| 464 | $dir = PlWikiPage::workDir(); |
| 465 | if (is_dir($dir)) { |
| 466 | if ($dh = opendir($dir)) { |
| 467 | while (($file = readdir($dh)) !== false) { |
| 468 | if ($file{0} >= 'A' && $file{0} <= 'Z') { |
| 469 | $wp = new PlWikiPage($file); |
| 470 | $wiki_pages[$file] = array('read' => $wp->readPerms(), |
| 471 | 'edit' => $wp->writePerms(), |
| 472 | 'cached' => is_file($wp->cacheFilename())); |
| 473 | } |
| 474 | } |
| 475 | closedir($dh); |
| 476 | } |
| 477 | } |
| 478 | return $wiki_pages; |
| 479 | } |
| 480 | } |
| 481 | |
| 482 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: |
| 483 | ?> |