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6855525e JL |
1 | <?php |
2 | /* | |
3 | * Copyright (C) 2003-2005 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
20 | ||
21 | ||
22 | require_once 'diogenes.page.inc.php'; | |
23 | require_once 'Barrel.php'; | |
24 | ||
25 | /** This class is used to display a page of a Diogenes barrel, | |
26 | * that is an RCS-managed website with a virtual directory | |
27 | * structure. | |
28 | */ | |
29 | class DiogenesBarrel extends DiogenesPage | |
30 | { | |
31 | // barrel definition info | |
32 | ||
33 | /** The database table holding the menus */ | |
34 | var $table_menu; | |
35 | ||
36 | /** The barrel's alias. */ | |
37 | var $alias; | |
38 | ||
39 | /** The Diogenes_Barrel representing the barrel */ | |
40 | var $barrel; | |
41 | ||
42 | // context info | |
43 | /** A Diogenes_Barrel_Page representing the current page */ | |
44 | var $curpage; | |
45 | ||
46 | /** Information about the current location */ | |
47 | var $pathinfo; | |
48 | ||
49 | /** Can the current user edit this page? */ | |
50 | var $canedit = false; | |
51 | ||
52 | ||
53 | /** Constructs a Smarty-derived object to display contents within a barrel. | |
54 | * | |
55 | * @param $override_pathinfo | |
56 | */ | |
57 | function DiogenesBarrel($override_pathinfo = null) | |
58 | { | |
59 | global $globals; | |
60 | ||
61 | // call parent constructor | |
62 | $this->DiogenesPage(); | |
63 | ||
64 | // break down PATH_INFO into site and location components | |
65 | $mypathinfo = $override_pathinfo ? $override_pathinfo : $_SERVER['PATH_INFO']; | |
66 | $this->pathinfo = $this->parsePathInfo($mypathinfo); | |
67 | if (!$this->pathinfo) | |
68 | $this->kill404("Invalid location specified!"); | |
69 | ||
70 | // Retrieve site-wide info from database | |
71 | $this->barrel = new Diogenes_Barrel($this->pathinfo['alias']); | |
72 | if (!$this->barrel->alias) | |
73 | $this->kill404("Unknown barrel requested : {$this->pathinfo['alias']}"); | |
74 | ||
75 | // Legacy | |
76 | $this->alias = $this->barrel->alias; | |
77 | $this->table_menu = $this->barrel->table_menu; | |
78 | ||
79 | // Build page head | |
80 | $this->makeHead(); | |
81 | ||
82 | // Check the requested page exists | |
83 | $tdir = $this->pathinfo['dir']; | |
84 | if ($tdir != 'admin') | |
85 | { | |
86 | if (!$this->pathinfo['PID'] = $this->barrel->getPID($tdir)) | |
87 | { | |
88 | $this->kill404("Unknown location specified '$tdir'!"); | |
89 | } | |
90 | } | |
91 | } | |
92 | ||
93 | /** Check the user has the right permissions. | |
94 | * Read the user's permissions for the current site from database. | |
95 | * | |
96 | * @param level the required permissions level | |
97 | */ | |
98 | function checkPerms($level) { | |
99 | global $globals; | |
100 | ||
101 | if ($level != "public") | |
102 | $_SESSION['session']->doAuth($this); | |
103 | ||
104 | $_SESSION['session']->setBarrelPerms($this->alias); | |
105 | ||
106 | if (!$_SESSION['session']->hasPerms($level)) | |
107 | $this->kill(__("You are not authorized to view this page!"), 403); | |
108 | } | |
109 | ||
110 | ||
111 | /** Read the contents for the current location. | |
112 | */ | |
113 | function doContent() | |
114 | { | |
115 | global $globals; | |
116 | ||
117 | // Retrieve information specific to the current page | |
118 | ||
119 | // enable directory index | |
120 | $file = $this->pathinfo['file'] ? $this->pathinfo['file'] : $globals->htmlfile; | |
121 | ||
122 | // read from Db | |
123 | if (!$bpage = Diogenes_Barrel_Page::fromDb($this->barrel, $this->pathinfo['PID'])) | |
124 | { | |
125 | $this->kill404("Directory not found : '{$this->pathinfo['dir']}' ({$this->pathinfo['PID']}) !"); | |
126 | } | |
127 | $this->curpage =& $bpage; | |
128 | ||
129 | // check the permissions for the current location | |
130 | if (!$this->pathinfo['file'] || $bpage->props['perms'] != 'public' || isset($_REQUEST['rev'])) { | |
131 | $this->startSession(); | |
132 | ||
133 | // handle login/logout requests | |
134 | if (isset($_REQUEST['dologout'])) | |
135 | $this->doLogout(); | |
136 | if (isset($_REQUEST['doauth'])) | |
137 | $this->checkPerms('auth'); | |
138 | ||
139 | $this->checkPerms($bpage->props['perms']); | |
140 | ||
141 | // can we edit this page? | |
142 | $this->canedit = $_SESSION['session']->hasPerms($bpage->props['wperms']); | |
143 | } | |
144 | ||
145 | // now we can display the page | |
146 | // check the location is valid | |
147 | if (!$this->barrel->spool->checkPath($bpage->props['PID'],$file,false)) | |
148 | $this->kill404("Malformed location!"); | |
149 | ||
150 | // check that the page is 'live' | |
151 | switch ($bpage->props['status']) { | |
152 | case 0: | |
153 | break; | |
154 | case 1: | |
155 | $this->assign('page_content', "<p>".__("This page is currently under construction.")."<p>"); | |
156 | $this->display(''); | |
157 | exit; | |
158 | default: | |
159 | $this->assign('page_content', "<p>".__("This page is currently unavailable.")."<p>"); | |
160 | $this->display(''); | |
161 | exit; | |
162 | } | |
163 | ||
164 | // if necessary, do a checkout | |
165 | if (isset($_REQUEST['rev'])) { | |
166 | $rcs = $this->getRcs(); | |
167 | $path = $rcs->checkout($bpage->props['PID'],$file,$_REQUEST['rev'],System::mktemp("-d")); | |
168 | } else { | |
169 | $path = $this->barrel->spool->spoolPath($bpage->props['PID'],$file); | |
170 | } | |
171 | ||
172 | if (!is_file($path)) | |
173 | $this->kill404("File not found : $path!"); | |
174 | ||
175 | if (!$this->pathinfo['file']) { | |
176 | // this is a page, display it within header/footer framework | |
177 | $this->doPage($path, $bpage); | |
178 | } else { | |
179 | // otherwise, we send back the raw file | |
180 | $type = get_mime_type($path); | |
181 | if (is_mime_multipart($type)) { | |
182 | $boundary = get_mime_boundary($path); | |
183 | if ($boundary) $type = "$type; boundary=\"$boundary\""; | |
184 | } | |
185 | header("Content-Type:$type"); | |
186 | header("Content-Length:".filesize($path)); | |
187 | header("Last-modified:".gmdate("D, d M Y H:i:s T", filemtime($path))); | |
188 | readfile($path); | |
189 | } | |
190 | ||
191 | } | |
192 | ||
193 | ||
194 | /** Display a page within the header/footer framework. | |
195 | * | |
196 | * @param path the path of the file | |
197 | * @param bpage a Diogenes_Barrel_Page representing the current page | |
198 | */ | |
199 | function doPage($path, $bpage) | |
200 | { | |
201 | global $globals; | |
202 | ||
203 | $this->assign('page',stripslashes($bpage->props['title'])); | |
204 | ||
205 | // load plugins | |
206 | $this->barrel->readPlugins(); | |
207 | $active_plugins = $this->barrel->loadPlugins($bpage); | |
208 | ||
209 | // search for rendering pluging | |
210 | $render_plugin = ''; | |
211 | foreach ($active_plugins as $plugname => $plugobj) { | |
212 | if (is_object($plugobj) && ($plugobj->type == "render")) { | |
213 | $render_plugin = $plugobj; | |
214 | } | |
215 | } | |
7aff44b2 | 216 | |
6855525e JL |
217 | // source page or pass it to a rendering plugin |
218 | if (is_object($render_plugin)) { | |
219 | $content = $render_plugin->render($path); | |
220 | } else { | |
221 | $content = file_get_contents($path); | |
222 | } | |
223 | ||
224 | // apply plugin filtering | |
225 | foreach ($active_plugins as $plugname => $plugobj) { | |
226 | if (is_object($plugobj) && ($plugobj->type == "filter")) { | |
227 | $content = $plugobj->filter($content); | |
228 | } | |
229 | } | |
230 | $this->assign('page_content', $content); | |
231 | ||
232 | parent::display('', $this->getTemplate($bpage->props['template'])); | |
233 | } | |
234 | ||
235 | ||
236 | /** Return an RCS handle. */ | |
237 | function getRcs() | |
238 | { | |
239 | global $globals; | |
240 | return new $globals->rcs($this,$this->alias,$_SESSION['session']->username); | |
241 | } | |
242 | ||
243 | ||
244 | /** Returns the master template for the current context. | |
245 | * | |
246 | * @param template | |
247 | */ | |
248 | function getTemplate($template = '') | |
249 | { | |
250 | if ($template) | |
251 | { | |
252 | // we have a page-specific template, get its full path | |
253 | $tpl = $this->templatePath($template); | |
254 | } else if ($this->barrel->options->template) { | |
255 | // we have default site template, get is full path | |
256 | $tpl = $this->templatePath($this->barrel->options->template); | |
257 | } else { | |
258 | // fall back on the system-wide default template | |
259 | $tpl = parent::getTemplate(); | |
260 | } | |
261 | return $tpl; | |
262 | } | |
263 | ||
264 | ||
265 | /** Returns the available master templates. */ | |
266 | function getTemplates() | |
267 | { | |
268 | // the system-wide templates | |
269 | $templates = parent::getTemplates(); | |
270 | $bbarrel =& $this->barrel; | |
271 | ||
272 | // lookup templates in the template directory | |
273 | if ($bbarrel->hasFlag('tpl') && $bbarrel->options->template_dir) { | |
274 | $dir = $bbarrel->spool->spoolPath($bbarrel->options->template_dir); | |
275 | $files = System::find($dir.' -maxdepth 1 -name *.tpl'); | |
276 | foreach ($files as $file) | |
277 | $templates["barrel:".basename($file)] = "[barrel] ".basename($file); | |
278 | } | |
279 | return $templates; | |
280 | } | |
281 | ||
282 | ||
283 | /** Is the user an administrator for the current barrel ? */ | |
284 | function isAdmin() { | |
285 | return isset($_SESSION['session']) && $_SESSION['session']->hasPerms('admin'); | |
286 | } | |
287 | ||
288 | ||
289 | /** Build the page's "head" tag. | |
290 | */ | |
291 | function makeHead() { | |
292 | global $globals; | |
293 | $bbarrel =& $this->barrel; | |
294 | ||
295 | // site name | |
296 | $this->assign('site', stripslashes($bbarrel->options->title)); | |
297 | ||
298 | // meta | |
299 | array_push($this->head, '<meta name="description" content="'.stripslashes($bbarrel->options->description).'" />'); | |
300 | array_push($this->head, '<meta name="keywords" content="'.stripslashes($bbarrel->options->keywords).'" />'); | |
301 | ||
302 | // stylesheets | |
303 | $this->sheets = array(); | |
304 | array_push($this->sheets, $this->url("common.css")); | |
305 | if ($bbarrel->options->menu_style == 1 || $bbarrel->options->menu_style == 2) | |
306 | array_push($this->sheets, $this->url("phplayersmenu/{$bbarrel->options->menu_theme}/style.css")); | |
307 | array_push($this->sheets, $this->urlSite("", $globals->cssfile)); | |
308 | ||
309 | // add stylesheets to head | |
310 | foreach ($this->sheets as $mysheet) { | |
311 | array_push($this->head, '<link rel="stylesheet" href="'.$mysheet.'" type="text/css" />'); | |
312 | } | |
313 | // favicon | |
314 | if ($bbarrel->options->favicon) | |
315 | array_push($this->head, '<link rel="icon" href="'.$this->urlSite("", $bbarrel->options->favicon).'" type="image/png" />'); | |
316 | } | |
317 | ||
318 | ||
319 | /** Build the barrel's menu. | |
320 | */ | |
321 | function makeMenu() { | |
322 | global $globals; | |
323 | $bbarrel =& $this->barrel; | |
324 | ||
325 | // menu style & theme | |
326 | $this->assign('menustyle', $bbarrel->options->menu_style); | |
327 | $this->assign('menutheme', $bbarrel->options->menu_theme); | |
328 | ||
329 | $PID = $this->curpage->props['PID']; | |
330 | ||
331 | // build the Diogenes part of the menu | |
332 | if (!$bbarrel->options->menu_hide_diogenes) { | |
333 | array_push($this->menu,array(0,__("Home"),$this->urlSite(""), 1)); | |
334 | if ($this->isLogged()) { | |
335 | array_push($this->menu, array(1,__("Logout"), "?dologout=1") ); | |
336 | array_push($this->menu, array(1,__("Preferences"), $this->urlSite("admin", "prefs"))); | |
337 | } else { | |
338 | array_push($this->menu, array(1,__("Login"), "?doauth=1") ); | |
339 | } | |
340 | ||
341 | if ($this->isAdmin()) { | |
342 | array_push($this->menu, array(1, __("Administration"), $this->urlSite("admin"))); | |
343 | if ($PID) | |
344 | array_push($this->menu, array(1, __("Page properties"), $this->urlSite("admin", "pages?dir=$PID"))); | |
345 | } elseif ($this->canedit && $PID) { | |
346 | array_push($this->menu, array(0, __("Edit this page"), "", 1)); | |
347 | array_push($this->menu, array(1, __("Raw editor"), $this->urlSite("admin", "edit?dir=$PID&file={$globals->htmlfile}"))); | |
348 | array_push($this->menu, array(1, __("HTML editor"), $this->urlSite("admin" , "compose?dir=$PID&file={$globals->htmlfile}"))); | |
349 | } | |
350 | } | |
351 | ||
352 | // if this is an error page, we need to bail out here | |
353 | if (!isset($this->table_menu)) | |
354 | return; | |
355 | ||
356 | // try to figure out the current MID from the current PID | |
357 | // and build filiation | |
358 | $filiation = array(); | |
359 | $res = $this->dbh->query("select MID from {$this->table_menu} where PID='$PID'"); | |
360 | while (list($MID) = mysql_fetch_row($res)) | |
361 | $filiation = $this->menuToRoot($MID, $filiation); | |
362 | mysql_free_result($res); | |
363 | ||
364 | // add the user-defined part of the menu | |
365 | $this->menu = array_merge($this->menu,$this->menuRecurse(0,$filiation,0)); | |
366 | } | |
367 | ||
368 | ||
369 | /** Return the filiation to get to the root element. | |
370 | * | |
371 | * @param MID | |
372 | * @param path | |
373 | */ | |
374 | function menuToRoot($MID, $path) { | |
375 | /* add ourself to the path */ | |
376 | array_push($path,$MID); | |
377 | ||
378 | if ($MID) { | |
379 | /* recursion */ | |
380 | $res = $this->dbh->query("select MIDpere from {$this->table_menu} where MID=$MID"); | |
381 | list($MIDpere) = mysql_fetch_row($res); | |
382 | mysql_free_result($res); | |
383 | ||
384 | return $this->menuToRoot($MIDpere, $path); | |
385 | } else { | |
386 | /* termination */ | |
387 | return $path; | |
388 | } | |
389 | } | |
390 | ||
391 | ||
392 | /** Recursively add menu entries | |
393 | * | |
394 | * @param MIDpere | |
395 | * @param filiation | |
396 | * @param level | |
397 | */ | |
398 | function menuRecurse($MIDpere, $filiation, $level) { | |
399 | // the produced output | |
400 | $out = array(); | |
401 | ||
402 | $res = $this->dbh->query("select m.MID,m.title,m.link,m.PID ". | |
403 | "from {$this->table_menu} as m ". | |
404 | "where MIDpere=$MIDpere order by ordre"); | |
405 | ||
406 | while(list($mid,$title,$link,$pid) = mysql_fetch_row($res)) { | |
407 | $location = $this->barrel->getLocation($pid); | |
408 | // echo "pid : $pid, location : $location<br/>"; | |
409 | $title = stripslashes($title); | |
410 | $entry = htmlentities(stripslashes($title), ENT_QUOTES); | |
411 | $link = $pid ? $this->urlSite($location) : $link; | |
412 | // decide whether this menu should be expanded | |
413 | $expanded = ($this->barrel->options->menu_min_level == 0) || | |
414 | ($level+1 < $this->barrel->options->menu_min_level) || | |
415 | in_array($mid, $filiation); | |
416 | array_push($out, array($level, $entry, $link, $expanded)); | |
417 | $out = array_merge($out, $this->menuRecurse($mid, $filiation, $level+1)); | |
418 | } | |
419 | ||
420 | // free MySQL result and return output | |
421 | mysql_free_result($res); | |
422 | return $out; | |
423 | } | |
424 | ||
425 | ||
426 | /** | |
427 | * Break down a PATH_INFO into site, page id and file | |
428 | * Directories *must* be accessed with a final slash. | |
429 | * | |
430 | * @param path the path to parse | |
431 | */ | |
432 | function parsePathInfo($path) { | |
433 | if (empty($path) || !preg_match("/^\/([^\/]+)\/((.+)\/)?([^\/]*)$/",$path,$asplit)) | |
434 | return false; | |
435 | ||
436 | $split['alias'] = $asplit[1]; | |
437 | $split['dir'] = isset($asplit[3]) ? $asplit[3] : ""; | |
438 | $split['file'] = isset($asplit[4]) ? $asplit[4] : ""; | |
439 | return $split; | |
440 | } | |
441 | ||
442 | ||
443 | /** Return the current URI. | |
444 | */ | |
445 | function script_uri() | |
446 | { | |
447 | if ($this->barrel->vhost) | |
448 | return preg_replace("/^(.*)\/site(\.php)?\/{$this->alias}\/(.*)/", "/\$3",$_SERVER['REQUEST_URI']); | |
449 | else | |
450 | return $_SERVER['REQUEST_URI']; | |
451 | } | |
452 | ||
453 | ||
454 | /** Returns the path to a given template. */ | |
455 | function templatePath($template) | |
456 | { | |
457 | global $globals; | |
458 | ||
459 | $bits = split(":", $template); | |
460 | switch ($bits[0]) { | |
461 | case "global": | |
462 | $path = $globals->template_dir."/". $bits[1]; | |
463 | break; | |
464 | case "barrel": | |
465 | $path = $this->barrel->spool->spoolPath($this->barrel->options->template_dir, $bits[1]); | |
466 | break; | |
467 | default: | |
468 | $path = parent::templatePath($template); | |
469 | } | |
470 | return $path; | |
471 | } | |
472 | ||
473 | ||
474 | /** Returns the URL to one of the barrel's pages relative to | |
475 | * the current location. | |
476 | * | |
477 | * @param dir | |
478 | * @param file | |
479 | */ | |
480 | function urlSite($dir, $file = '') { | |
481 | global $page; | |
482 | $tosite = strlen($this->pathinfo['dir']) ? str_repeat("../",1+substr_count($this->pathinfo['dir'],"/")) : ''; | |
483 | $url = $tosite . (strlen($dir) ? "$dir/" : "") . $file; | |
484 | return strlen($url) ? $url : "./"; | |
485 | } | |
486 | ||
487 | } | |
488 | ||
489 | ?> |