lib/editpage.php

   1 <?php
   2 // rcs_id('$Id$');
   3
   4 require_once('lib/Template.php');
   5
   6 class PageEditor
   7 {
   8     function PageEditor (&$request) {
   9         $this->request = &$request;
  10
  11         $this->user = $request->getUser();
  12         $this->page = $request->getPage();
  13
  14         $this->current = $this->page->getCurrentRevision(false);
  15
  16         // HACKish short circuit to browse on action=create
  17         if ($request->getArg('action') == 'create') {
  18             if (! $this->current->hasDefaultContents())
  19                 $request->redirect(WikiURL($this->page->getName())); // noreturn
  20         }
  21
  22         $this->meta = array('author' => $this->user->getId(),
  23                             'author_id' => $this->user->getAuthenticatedId(),
  24                             'mtime' => time());
  25
  26         $this->tokens = array();
  27
  28         if (ENABLE_WYSIWYG) {
  29             $backend = WYSIWYG_BACKEND;
  30             // TODO: error message
  31             require_once("lib/WysiwygEdit/$backend.php");
  32             $class = "WysiwygEdit_$backend";
  33             $this->WysiwygEdit = new $class();
  34         }
  35         if (ENABLE_CAPTCHA) {
  36             require_once('lib/Captcha.php');
  37             $this->Captcha = new Captcha($this->meta);
  38         }
  39
  40         $version = $request->getArg('version');
  41         if ($version !== false) {
  42             $this->selected = $this->page->getRevision($version);
  43             $this->version = $version;
  44         }
  45         else {
  46             $this->version = $this->current->getVersion();
  47             $this->selected = $this->page->getRevision($this->version);
  48         }
  49
  50         if ($this->_restoreState()) {
  51             $this->_initialEdit = false;
  52         }
  53         else {
  54             $this->_initializeState();
  55             $this->_initialEdit = true;
  56
  57             // The edit request has specified some initial content from a template
  58             if (  ($template = $request->getArg('template'))
  59                    and $request->_dbi->isWikiPage($template))
  60             {
  61                 $page = $request->_dbi->getPage($template);
  62                 $current = $page->getCurrentRevision();
  63                 $this->_content = $current->getPackedContent();
  64             } elseif ($initial_content = $request->getArg('initial_content')) {
  65                 $this->_content = $initial_content;
  66                 $this->_redirect_to = $request->getArg('save_and_redirect_to');
  67             }
  68         }
  69         if (!headers_sent())
  70             header("Content-Type: text/html; charset=" . $GLOBALS['charset']);
  71     }
  72
  73     function editPage () {
  74         global $WikiTheme;
  75         $saveFailed = false;
  76         $tokens = &$this->tokens;
  77         $tokens['PAGE_LOCKED_MESSAGE'] = '';
  78         $tokens['LOCK_CHANGED_MSG'] = '';
  79         $tokens['CONCURRENT_UPDATE_MESSAGE'] = '';
  80         $r =& $this->request;
  81
  82         if (isset($r->args['pref']['editWidth'])
  83             and ($r->getPref('editWidth') != $r->args['pref']['editWidth'])) {
  84             $r->_prefs->set('editWidth', $r->args['pref']['editWidth']);
  85         }
  86         if (isset($r->args['pref']['editHeight'])
  87             and ($r->getPref('editHeight') != $r->args['pref']['editHeight'])) {
  88             $r->_prefs->set('editHeight', $r->args['pref']['editHeight']);
  89         }
  90
  91         if ($this->isModerated())
  92             $tokens['PAGE_LOCKED_MESSAGE'] = $this->getModeratedMessage();
  93
  94         if (! $this->canEdit()) {
  95             if ($this->isInitialEdit())
  96                 return $this->viewSource();
  97             $tokens['PAGE_LOCKED_MESSAGE'] = $this->getLockedMessage();
  98         }
  99         elseif ($r->getArg('save_and_redirect_to') != "") {
 100             if (ENABLE_CAPTCHA && $this->Captcha->Failed()) {
 101                 $this->tokens['PAGE_LOCKED_MESSAGE'] =
 102                     HTML::p(HTML::h1($this->Captcha->failed_msg));
 103             }
 104             elseif ( $this->savePage()) {
 105                 // noreturn
 106                 $request->setArg('action', false);
 107                 $r->redirect(WikiURL($r->getArg('save_and_redirect_to')));
 108                 return true;    // Page saved.
 109             }
 110             $saveFailed = true;
 111         }
 112         elseif ($this->editaction == 'save') {
 113             if (ENABLE_CAPTCHA && $this->Captcha->Failed()) {
 114                 $this->tokens['PAGE_LOCKED_MESSAGE'] =
 115                     HTML::p(HTML::h1($this->Captcha->failed_msg));
 116             }
 117             elseif ($this->savePage()) {
 118                 return true;    // Page saved.
 119             }
 120             else {
 121                 $saveFailed = true;
 122             }
 123         }
 124         // coming from loadfile conflicts
 125         elseif ($this->editaction == 'keep_old') {
 126             // keep old page and do nothing
 127             $this->_redirectToBrowsePage();
 128             //$r->redirect(WikiURL($r->getArg('save_and_redirect_to')));
 129             return true;
 130         }
 131         elseif ($this->editaction == 'overwrite') {
 132             // take the new content without diff
 133             $source = $this->request->getArg('loadfile');
 134             require_once('lib/loadsave.php');
 135             $this->request->setArg('loadfile', 1);
 136             $this->request->setArg('overwrite', 1);
 137             $this->request->setArg('merge', 0);
 138             LoadFileOrDir($this->request);
 139             $this->_redirectToBrowsePage();
 140             //$r->redirect(WikiURL($r->getArg('save_and_redirect_to')));
 141             return true;
 142         }
 143         elseif ($this->editaction == 'upload') {
 144             // run plugin UpLoad
 145             $plugin = WikiPluginLoader("UpLoad");
 146             $plugin->run();
 147             // add link to content
 148             ;
 149         }
 150
 151         if ($saveFailed and $this->isConcurrentUpdate())
 152         {
 153             // Get the text of the original page, and the two conflicting edits
 154             // The diff3 class takes arrays as input.  So retrieve content as
 155             // an array, or convert it as necesary.
 156             $orig = $this->page->getRevision($this->_currentVersion);
 157             // FIXME: what if _currentVersion has be deleted?
 158             $orig_content = $orig->getContent();
 159             $this_content = explode("\n", $this->_content);
 160             $other_content = $this->current->getContent();
 161             require_once("lib/diff3.php");
 162             $diff = new diff3($orig_content, $this_content, $other_content);
 163             $output = $diff->merged_output(_("Your version"), _("Other version"));
 164             // Set the content of the textarea to the merged diff
 165             // output, and update the version
 166             $this->_content = implode ("\n", $output);
 167             $this->_currentVersion = $this->current->getVersion();
 168             $this->version = $this->_currentVersion;
 169             $unresolved = $diff->ConflictingBlocks;
 170             $tokens['CONCURRENT_UPDATE_MESSAGE']
 171                 = $this->getConflictMessage($unresolved);
 172         } elseif ($saveFailed && !$this->_isSpam) {
 173             $tokens['CONCURRENT_UPDATE_MESSAGE'] =
 174                 HTML(HTML::h2(_("Some internal editing error")),
 175                      HTML::p(_("Your are probably trying to edit/create an invalid version of this page.")),
 176                      HTML::p(HTML::em(_("&version=-1 might help."))));
 177         }
 178
 179         if ($this->editaction == 'edit_convert')
 180             $tokens['PREVIEW_CONTENT'] = $this->getConvertedPreview();
 181         if ($this->editaction == 'preview')
 182             $tokens['PREVIEW_CONTENT'] = $this->getPreview(); // FIXME: convert to _MESSAGE?
 183         if ($this->editaction == 'diff')
 184             $tokens['PREVIEW_CONTENT'] = $this->getDiff();
 185
 186         // FIXME: NOT_CURRENT_MESSAGE?
 187         $tokens = array_merge($tokens, $this->getFormElements());
 188
 189         if (ENABLE_EDIT_TOOLBAR and !ENABLE_WYSIWYG) {
 190             require_once("lib/EditToolbar.php");
 191             $toolbar = new EditToolbar();
 192             $tokens = array_merge($tokens, $toolbar->getTokens());
 193         }
 194
 195         return $this->output('editpage', _("Edit: %s"));
 196     }
 197
 198     function output ($template, $title_fs) {
 199         global $WikiTheme;
 200         $selected = &$this->selected;
 201         $current = &$this->current;
 202
 203         if ($selected && $selected->getVersion() != $current->getVersion()) {
 204             $rev = $selected;
 205             $pagelink = WikiLink($selected);
 206         }
 207         else {
 208             $rev = $current;
 209             $pagelink = WikiLink($this->page);
 210         }
 211
 212         $title = new FormattedText ($title_fs, $pagelink);
 213         // not for dumphtml or viewsource
 214         if (ENABLE_WYSIWYG and $template == 'editpage') {
 215             $WikiTheme->addMoreHeaders($this->WysiwygEdit->Head());
 216             //$tokens['PAGE_SOURCE'] = $this->WysiwygEdit->ConvertBefore($this->_content);
 217         }
 218         $template = Template($template, $this->tokens);
 219         /* Tell google (and others) not to take notice of edit links */
 220         if (GOOGLE_LINKS_NOFOLLOW)
 221             $args = array('ROBOTS_META' => "noindex,nofollow");
 222         GeneratePage($template, $title, $rev);
 223         return true;
 224     }
 225
 226
 227     function viewSource () {
 228         assert($this->isInitialEdit());
 229         assert($this->selected);
 230
 231         $this->tokens['PAGE_SOURCE'] = $this->_content;
 232         $this->tokens['HIDDEN_INPUTS'] = HiddenInputs($this->request->getArgs());
 233         return $this->output('viewsource', _("View Source: %s"));
 234     }
 235
 236     function updateLock() {
 237         $changed = false;
 238         if (!ENABLE_PAGE_PUBLIC && !ENABLE_EXTERNAL_PAGES) {
 239             if ((bool)$this->page->get('locked') == (bool)$this->locked)
 240                 return false;       // Not changed.
 241         }
 242
 243         if (!$this->user->isAdmin()) {
 244             // FIXME: some sort of message
 245             return false;         // not allowed.
 246         }
 247         if ((bool)$this->page->get('locked') != (bool)$this->locked) {
 248             $this->page->set('locked', (bool)$this->locked);
 249             $this->tokens['LOCK_CHANGED_MSG']
 250                 .= ($this->locked
 251                     ? _("Page now locked.")
 252                     : _("Page now unlocked.") . " ");
 253             $changed = true;
 254         }
 255         if (ENABLE_PAGE_PUBLIC and (bool)$this->page->get('public') != (bool)$this->public) {
 256             $this->page->set('public', (bool)$this->public);
 257             $this->tokens['LOCK_CHANGED_MSG']
 258                 .= ($this->public
 259                 ? _("Page now public.")
 260                 : _("Page now not-public."));
 261             $changed = true;
 262         }
 263
 264         if (ENABLE_EXTERNAL_PAGES) {
 265             if ((bool)$this->page->get('external') != (bool)$this->external) {
 266                 $this->page->set('external', (bool)$this->external);
 267                 $this->tokens['LOCK_CHANGED_MSG']
 268                     = ($this->external
 269                        ? _("Page now external.")
 270                        : _("Page now not-external.")) . " ";
 271                 $changed = true;
 272             }
 273         }
 274         return $changed;            // lock changed.
 275     }
 276
 277     function savePage () {
 278         $request = &$this->request;
 279
 280         if ($this->isUnchanged()) {
 281             // Allow admin lock/unlock even if
 282             // no text changes were made.
 283             if ($this->updateLock()) {
 284                 $dbi = $request->getDbh();
 285                 $dbi->touch();
 286             }
 287             // Save failed. No changes made.
 288             $this->_redirectToBrowsePage();
 289             // user will probably not see the rest of this...
 290             require_once('lib/display.php');
 291             // force browse of current version:
 292             $request->setArg('action', false);
 293             $request->setArg('version', false);
 294             displayPage($request, 'nochanges');
 295             return true;
 296         }
 297
 298         if (!$this->user->isAdmin() and $this->isSpam()) {
 299             $this->_isSpam = true;
 300             return false;
 301             /*
 302             // Save failed. No changes made.
 303             $this->_redirectToBrowsePage();
 304             // user will probably not see the rest of this...
 305             require_once('lib/display.php');
 306             // force browse of current version:
 307             $request->setArg('version', false);
 308             displayPage($request, 'nochanges');
 309             return true;
 310             */
 311         }
 312
 313         $page = &$this->page;
 314
 315         // Include any meta-data from original page version which
 316         // has not been explicitly updated.
 317         // (Except don't propagate pgsrc_version --- moot for now,
 318         //  because at present it never gets into the db...)
 319         $meta = $this->selected->getMetaData();
 320         unset($meta['pgsrc_version']);
 321         $meta = array_merge($meta, $this->meta);
 322
 323         // Save new revision
 324         $this->_content = $this->getContent();
 325         $newrevision = $page->save($this->_content,
 326                                    $this->version == -1
 327                                      ? -1
 328                                      : $this->_currentVersion + 1,
 329                                    // force new?
 330                                    $meta);
 331         if (!isa($newrevision, 'WikiDB_PageRevision')) {
 332             // Save failed.  (Concurrent updates).
 333             return false;
 334         }
 335
 336         // New contents successfully saved...
 337         $this->updateLock();
 338
 339         // Clean out archived versions of this page.
 340         require_once('lib/ArchiveCleaner.php');
 341         $cleaner = new ArchiveCleaner($GLOBALS['ExpireParams']);
 342         $cleaner->cleanPageRevisions($page);
 343
 344         /* generate notification emails done in WikiDB::save to catch
 345          all direct calls (admin plugins) */
 346
 347         // look at the errorstack
 348         $errors   = $GLOBALS['ErrorManager']->_postponed_errors;
 349         $warnings = $GLOBALS['ErrorManager']->getPostponedErrorsAsHTML();
 350         $GLOBALS['ErrorManager']->_postponed_errors = $errors;
 351
 352         $dbi = $request->getDbh();
 353         $dbi->touch();
 354
 355         global $WikiTheme;
 356         if (empty($warnings->_content) && ! $WikiTheme->getImageURL('signature')) {
 357             // Do redirect to browse page if no signature has
 358             // been defined.  In this case, the user will most
 359             // likely not see the rest of the HTML we generate
 360             // (below).
 361             $request->setArg('action', false);
 362             $this->_redirectToBrowsePage();
 363         }
 364
 365         // Force browse of current page version.
 366         $request->setArg('version', false);
 367         // testme: does preview and more need action=edit?
 368         $request->setArg('action', false);
 369
 370         $template = Template('savepage', $this->tokens);
 371         $template->replace('CONTENT', $newrevision->getTransformedContent());
 372         if (!empty($warnings->_content)) {
 373             $template->replace('WARNINGS', $warnings);
 374             unset($GLOBALS['ErrorManager']->_postponed_errors);
 375         }
 376
 377         $pagelink = WikiLink($page);
 378
 379         GeneratePage($template, fmt("Saved: %s", $pagelink), $newrevision);
 380         return true;
 381     }
 382
 383     function isConcurrentUpdate () {
 384         assert($this->current->getVersion() >= $this->_currentVersion);
 385         return $this->current->getVersion() != $this->_currentVersion;
 386     }
 387
 388     function canEdit () {
 389         return !$this->page->get('locked') || $this->user->isAdmin();
 390     }
 391
 392     function isInitialEdit () {
 393         return $this->_initialEdit;
 394     }
 395
 396     function isUnchanged () {
 397         $current = &$this->current;
 398
 399         if ($this->meta['markup'] !=  $current->get('markup'))
 400             return false;
 401
 402         return $this->_content == $current->getPackedContent();
 403     }
 404
 405     /**
 406      * Handle AntiSpam here. How? http://wikiblacklist.blogspot.com/
 407      * Need to check dynamically some blacklist wikipage settings
 408      * (plugin WikiAccessRestrictions) and some static blacklist.
 409      * DONE:
 410      *   More than NUM_SPAM_LINKS (default: 20) new external links.
 411      *        Disabled if NUM_SPAM_LINKS is 0
 412      *   ENABLE_SPAMASSASSIN:  content patterns by babycart (only php >= 4.3 for now)
 413      *   ENABLE_SPAMBLOCKLIST: content domain blacklist
 414      */
 415     function isSpam () {
 416         $current = &$this->current;
 417         $request = &$this->request;
 418
 419         $oldtext = $current->getPackedContent();
 420         $newtext =& $this->_content;
 421         $numlinks = $this->numLinks($newtext);
 422         $newlinks = $numlinks - $this->numLinks($oldtext);
 423         // FIXME: in longer texts the NUM_SPAM_LINKS number should be increased.
 424         //        better use a certain text : link ratio.
 425
 426         // 1. Not more than NUM_SPAM_LINKS (default: 20) new external links
 427         if ((NUM_SPAM_LINKS > 0) and ($newlinks >= NUM_SPAM_LINKS))
 428         {
 429             // Allow strictly authenticated users?
 430             // TODO: mail the admin?
 431             $this->tokens['PAGE_LOCKED_MESSAGE'] =
 432                 HTML($this->getSpamMessage(),
 433                      HTML::p(HTML::strong(_("Too many external links."))));
 434             return true;
 435         }
 436         // 2. external babycart (SpamAssassin) check
 437         // This will probably prevent from discussing sex or viagra related topics. So beware.
 438         if (ENABLE_SPAMASSASSIN) {
 439             require_once("lib/spam_babycart.php");
 440             if ($babycart = check_babycart($newtext, $request->get("REMOTE_ADDR"),
 441                                            $this->user->getId())) {
 442                 // TODO: mail the admin
 443                 if (is_array($babycart))
 444                     $this->tokens['PAGE_LOCKED_MESSAGE'] =
 445                         HTML($this->getSpamMessage(),
 446                              HTML::p(HTML::em(_("SpamAssassin reports: "),
 447                                                 join("\n", $babycart))));
 448                 return true;
 449             }
 450         }
 451         // 3. extract (new) links and check surbl for blocked domains
 452         if (ENABLE_SPAMBLOCKLIST and ($newlinks > 5)) {
 453             require_once("lib/SpamBlocklist.php");
 454             require_once("lib/InlineParser.php");
 455             $parsed = TransformLinks($newtext);
 456             $oldparsed = TransformLinks($oldtext);
 457             $oldlinks = array();
 458             foreach ($oldparsed->_content as $link) {
 459                 if (isa($link, 'Cached_ExternalLink') and !isa($link, 'Cached_InterwikiLink')) {
 460                     $uri = $link->_getURL($this->page->getName());
 461                     $oldlinks[$uri]++;
 462                 }
 463             }
 464             unset($oldparsed);
 465             foreach ($parsed->_content as $link) {
 466                 if (isa($link, 'Cached_ExternalLink') and !isa($link, 'Cached_InterwikiLink')) {
 467                     $uri = $link->_getURL($this->page->getName());
 468                     // only check new links, so admins may add blocked links.
 469                     if (!array_key_exists($uri, $oldlinks) and ($res = IsBlackListed($uri))) {
 470                         // TODO: mail the admin
 471                         $this->tokens['PAGE_LOCKED_MESSAGE'] =
 472                             HTML($this->getSpamMessage(),
 473                                  HTML::p(HTML::strong(_("External links contain blocked domains:")),
 474                                          HTML::ul(HTML::li(sprintf(_("%s is listed at %s with %s"),
 475                                                                    $uri." [".$res[2]."]", $res[0], $res[1])))));
 476                         return true;
 477                     }
 478                 }
 479             }
 480             unset($oldlinks);
 481             unset($parsed);
 482             unset($oldparsed);
 483         }
 484
 485         return false;
 486     }
 487
 488     /** Number of external links in the wikitext
 489      */
 490     function numLinks(&$text) {
 491         return substr_count($text, "http://") + substr_count($text, "https://");
 492     }
 493
 494     /** Header of the Anti Spam message
 495      */
 496     function getSpamMessage () {
 497         return
 498             HTML(HTML::h2(_("Spam Prevention")),
 499                  HTML::p(_("This page edit seems to contain spam and was therefore not saved."),
 500                          HTML::br(),
 501                          _("Sorry for the inconvenience.")),
 502                  HTML::p(""));
 503     }
 504
 505     function getPreview () {
 506         require_once('lib/PageType.php');
 507         $this->_content = $this->getContent();
 508         return new TransformedText($this->page, $this->_content, $this->meta);
 509     }
 510
 511     function getConvertedPreview () {
 512         require_once('lib/PageType.php');
 513         $this->_content = $this->getContent();
 514         $this->meta['markup'] = 2.0;
 515         $this->_content = ConvertOldMarkup($this->_content);
 516         return new TransformedText($this->page, $this->_content, $this->meta);
 517     }
 518
 519     function getDiff () {
 520         require_once('lib/diff.php');
 521         $html = HTML();
 522
 523         $diff = new Diff($this->current->getContent(), explode("\n", $this->getContent()));
 524         if ($diff->isEmpty()) {
 525             $html->pushContent(HTML::hr(),
 526                                HTML::p('[', _("Versions are identical"),
 527                                        ']'));
 528         }
 529         else {
 530             // New CSS formatted unified diffs (ugly in NS4).
 531             $fmt = new HtmlUnifiedDiffFormatter;
 532             // Use this for old table-formatted diffs.
 533             //$fmt = new TableUnifiedDiffFormatter;
 534             $html->pushContent($fmt->format($diff));
 535         }
 536         return $html;
 537     }
 538
 539     // possibly convert HTMLAREA content back to Wiki markup
 540     function getContent () {
 541         if (ENABLE_WYSIWYG) {
 542             // don't store everything as html
 543             if (!WYSIWYG_DEFAULT_PAGETYPE_HTML) {
 544                 // Wikiwyg shortcut to avoid the InlineTransformer:
 545                 if (WYSIWYG_BACKEND == "Wikiwyg") return $this->_content;
 546                 $xml_output = $this->WysiwygEdit->ConvertAfter($this->_content);
 547                 $this->_content = join("", $xml_output->_content);
 548             } else {
 549                 $this->meta['pagetype'] = 'html';
 550             }
 551             return $this->_content;
 552         } else {
 553             return $this->_content;
 554         }
 555     }
 556
 557     function getLockedMessage () {
 558         return
 559             HTML(HTML::h2(_("Page Locked")),
 560                  HTML::p(_("This page has been locked by the administrator so your changes can not be saved.")),
 561                  HTML::p(_("(Copy your changes to the clipboard. You can try editing a different page or save your text in a text editor.)")),
 562                  HTML::p(_("Sorry for the inconvenience.")));
 563     }
 564
 565     function isModerated() {
 566         return $this->page->get('moderation');
 567     }
 568     function getModeratedMessage() {
 569         return
 570             HTML(HTML::h2(WikiLink(_("ModeratedPage"))),
 571                  HTML::p(fmt("You can edit away, but your changes will have to be approved by the defined moderators at the definition in %s", WikiLink(_("ModeratedPage")))),
 572                  HTML::p(fmt("The approval has a grace period of 5 days. If you have your E-Mail defined in your %s, you will get a notification of approval or rejection.",
 573                          WikiLink(_("UserPreferences")))));
 574     }
 575     function getConflictMessage ($unresolved = false) {
 576         /*
 577          xgettext only knows about c/c++ line-continuation strings
 578          it does not know about php's dot operator.
 579          We want to translate this entire paragraph as one string, of course.
 580          */
 581
 582         //$re_edit_link = Button('edit', _("Edit the new version"), $this->page);
 583
 584         if ($unresolved)
 585             $message =  HTML::p(fmt("Some of the changes could not automatically be combined.  Please look for sections beginning with '%s', and ending with '%s'.  You will need to edit those sections by hand before you click Save.",
 586                                 "<<<<<<< ". _("Your version"),
 587                                 ">>>>>>> ". _("Other version")));
 588         else
 589             $message = HTML::p(_("Please check it through before saving."));
 590
 591
 592
 593         /*$steps = HTML::ol(HTML::li(_("Copy your changes to the clipboard or to another temporary place (e.g. text editor).")),
 594           HTML::li(fmt("%s of the page. You should now see the most current version of the page. Your changes are no longer there.",
 595                        $re_edit_link)),
 596           HTML::li(_("Make changes to the file again. Paste your additions from the clipboard (or text editor).")),
 597           HTML::li(_("Save your updated changes.")));
 598         */
 599         return
 600             HTML(HTML::h2(_("Conflicting Edits!")),
 601                  HTML::p(_("In the time since you started editing this page, another user has saved a new version of it.")),
 602                  HTML::p(_("Your changes can not be saved as they are, since doing so would overwrite the other author's changes. So, your changes and those of the other author have been combined. The result is shown below.")),
 603                  $message);
 604     }
 605
 606
 607     function getTextArea () {
 608         $request = &$this->request;
 609
 610         $readonly = ! $this->canEdit(); // || $this->isConcurrentUpdate();
 611
 612         // WYSIWYG will need two pagetypes: raw wikitest and converted html
 613         if (ENABLE_WYSIWYG) {
 614             $this->_wikicontent = $this->_content;
 615             $this->_content = $this->WysiwygEdit->ConvertBefore($this->_content);
 616             //                $this->getPreview();
 617             //$this->_htmlcontent = $this->_content->asXML();
 618         }
 619
 620         $textarea = HTML::textarea(array('class'=> 'wikiedit',
 621                                          'name' => 'edit[content]',
 622                                          'id'   => 'edit-content',
 623                                          'rows' => $request->getPref('editHeight'),
 624                                          'cols' => $request->getPref('editWidth'),
 625                                          'readonly' => (bool) $readonly),
 626                                    $this->_content);
 627         if (ENABLE_WYSIWYG) {
 628             return $this->WysiwygEdit->Textarea($textarea, $this->_wikicontent,
 629                                                 $textarea->getAttr('name'));
 630         } else
 631             return $textarea;
 632     }
 633
 634     function getFormElements () {
 635         global $WikiTheme;
 636         $request = &$this->request;
 637         $page = &$this->page;
 638
 639         $h = array('action'   => 'edit',
 640                    'pagename' => $page->getName(),
 641                    'version'  => $this->version,
 642                    'edit[pagetype]' => $this->meta['pagetype'],
 643                    'edit[current_version]' => $this->_currentVersion);
 644
 645         $el['HIDDEN_INPUTS'] = HiddenInputs($h);
 646         $el['EDIT_TEXTAREA'] = $this->getTextArea();
 647         if ( ENABLE_CAPTCHA ) {
 648             $el = array_merge($el, $this->Captcha->getFormElements());
 649         }
 650         $el['SUMMARY_INPUT']
 651             = HTML::input(array('type'  => 'text',
 652                                 'class' => 'wikitext',
 653                                 'id' => 'edit-summary',
 654                                 'name'  => 'edit[summary]',
 655                                 'size'  => 50,
 656                                 'maxlength' => 256,
 657                                 'value' => $this->meta['summary']));
 658         $el['MINOR_EDIT_CB']
 659             = HTML::input(array('type' => 'checkbox',
 660                                 'name'  => 'edit[minor_edit]',
 661                                 'id' => 'edit-minor_edit',
 662                                 'checked' => (bool) $this->meta['is_minor_edit']));
 663         $el['OLD_MARKUP_CB']
 664             = HTML::input(array('type' => 'checkbox',
 665                                 'name' => 'edit[markup]',
 666                                 'value' => 'old',
 667                                 'checked' => $this->meta['markup'] < 2.0,
 668                                 'id' => 'useOldMarkup',
 669                                 'onclick' => 'showOldMarkupRules(this.checked)'));
 670         $el['OLD_MARKUP_CONVERT'] = ($this->meta['markup'] < 2.0)
 671             ? Button('submit:edit[edit_convert]', _("Convert"), 'wikiaction') : '';
 672         $el['LOCKED_CB']
 673             = HTML::input(array('type' => 'checkbox',
 674                                 'name' => 'edit[locked]',
 675                                 'id'   => 'edit-locked',
 676                                 'disabled' => (bool) !$this->user->isAdmin(),
 677                                 'checked'  => (bool) $this->locked));
 678         if (ENABLE_PAGE_PUBLIC) {
 679             $el['PUBLIC_CB']
 680             = HTML::input(array('type' => 'checkbox',
 681                                 'name' => 'edit[public]',
 682                                 'id'   => 'edit-public',
 683                                 'disabled' => (bool) !$this->user->isAdmin(),
 684                                 'checked'  => (bool) $this->page->get('public')));
 685         }
 686         if (ENABLE_EXTERNAL_PAGES) {
 687             $el['EXTERNAL_CB']
 688             = HTML::input(array('type' => 'checkbox',
 689                                 'name' => 'edit[external]',
 690                                 'id'   => 'edit-external',
 691                                 'disabled' => (bool) !$this->user->isAdmin(),
 692                                 'checked'  => (bool) $this->page->get('external')));
 693         }
 694         if (ENABLE_WYSIWYG) {
 695             if (($this->version == 0) and ($request->getArg('mode') != 'wysiwyg')) {
 696                 $el['WYSIWYG_B'] = Button(array("action" => "edit", "mode" => "wysiwyg"), "Wysiwyg Editor");
 697             }
 698         }
 699
 700         $el['PREVIEW_B'] = Button('submit:edit[preview]', _("Preview"),
 701                                   'wikiaction',
 702                                   array('accesskey'=> 'p',
 703                                      'title' => 'Preview the current content [alt-p]'));
 704
 705         //if (!$this->isConcurrentUpdate() && $this->canEdit())
 706         $el['SAVE_B'] = Button('submit:edit[save]',
 707                                _("Save"), 'wikiaction',
 708                                array('accesskey'=> 's',
 709                                      'title' => 'Save the current content as wikipage [alt-s]'));
 710         $el['CHANGES_B'] = Button('submit:edit[diff]',
 711                                _("Changes"), 'wikiaction',
 712                                array('accesskey'=> 'c',
 713                                      'title' => 'Preview the current changes as diff [alt-c]'));
 714         $el['UPLOAD_B'] = Button('submit:edit[upload]',
 715                                _("Upload"), 'wikiaction',
 716                                 array('title' => 'Select a local file and press Upload to attach into this page'));
 717         $el['SPELLCHECK_B'] = Button('submit:edit[SpellCheck]',
 718                                _("Spell Check"), 'wikiaction',
 719                                 array('title' => 'Check the spelling'));
 720         $el['IS_CURRENT'] = $this->version == $this->current->getVersion();
 721
 722         $el['WIDTH_PREF']
 723             = HTML::input(array('type'     => 'text',
 724                                 'size'     => 3,
 725                                 'maxlength'=> 4,
 726                                 'class'    => "numeric",
 727                                 'name'     => 'pref[editWidth]',
 728                                 'id'       => 'pref-editWidth',
 729                                 'value'    => $request->getPref('editWidth'),
 730                                 'onchange' => 'this.form.submit();'));
 731         $el['HEIGHT_PREF']
 732             = HTML::input(array('type'     => 'text',
 733                                 'size'     => 3,
 734                                 'maxlength'=> 4,
 735                                 'class'    => "numeric",
 736                                 'name'     => 'pref[editHeight]',
 737                                 'id'       => 'pref-editHeight',
 738                                 'value'    => $request->getPref('editHeight'),
 739                                 'onchange' => 'this.form.submit();'));
 740         $el['SEP'] = $WikiTheme->getButtonSeparator();
 741         $el['AUTHOR_MESSAGE'] = fmt("Author will be logged as %s.",
 742                                     HTML::em($this->user->getId()));
 743
 744         return $el;
 745     }
 746
 747     function _redirectToBrowsePage() {
 748         $this->request->redirect(WikiURL($this->page, false, 'absolute_url'));
 749     }
 750
 751     function _restoreState () {
 752         $request = &$this->request;
 753
 754         $posted = $request->getArg('edit');
 755         $request->setArg('edit', false);
 756
 757         if (!$posted
 758             || !$request->isPost()
 759             || !in_array($request->getArg('action'),array('edit','loadfile')))
 760             return false;
 761
 762         if (!isset($posted['content']) || !is_string($posted['content']))
 763             return false;
 764         $this->_content = preg_replace('/[ \t\r]+\n/', "\n",
 765                                         rtrim($posted['content']));
 766         $this->_content = $this->getContent();
 767
 768         $this->_currentVersion = (int) $posted['current_version'];
 769
 770         if ($this->_currentVersion < 0)
 771             return false;
 772         if ($this->_currentVersion > $this->current->getVersion())
 773             return false;       // FIXME: some kind of warning?
 774
 775         $is_old_markup = !empty($posted['markup']) && $posted['markup'] == 'old';
 776         $meta['markup'] = $is_old_markup ? false : 2.0;
 777         $meta['summary'] = trim(substr($posted['summary'], 0, 256));
 778         $meta['is_minor_edit'] = !empty($posted['minor_edit']);
 779         $meta['pagetype'] = !empty($posted['pagetype']) ? $posted['pagetype'] : false;
 780         if ( ENABLE_CAPTCHA )
 781             $meta['captcha_input'] = !empty($posted['captcha_input']) ?
 782                 $posted['captcha_input'] : '';
 783
 784         $this->meta = array_merge($this->meta, $meta);
 785         $this->locked = !empty($posted['locked']);
 786         if (ENABLE_PAGE_PUBLIC)
 787             $this->public = !empty($posted['public']);
 788         if (ENABLE_EXTERNAL_PAGES)
 789             $this->external = !empty($posted['external']);
 790
 791         foreach (array('preview','save','edit_convert',
 792                        'keep_old','overwrite','diff','upload') as $o)
 793         {
 794             if (!empty($posted[$o]))
 795                 $this->editaction = $o;
 796         }
 797         if (empty($this->editaction))
 798             $this->editaction = 'edit';
 799
 800         return true;
 801     }
 802
 803     function _initializeState () {
 804         $request = &$this->request;
 805         $current = &$this->current;
 806         $selected = &$this->selected;
 807         $user = &$this->user;
 808
 809         if (!$selected)
 810             NoSuchRevision($request, $this->page, $this->version); // noreturn
 811
 812         $this->_currentVersion = $current->getVersion();
 813         $this->_content = $selected->getPackedContent();
 814
 815         $this->locked = $this->page->get('locked');
 816
 817         // If author same as previous author, default minor_edit to on.
 818         $age = $this->meta['mtime'] - $current->get('mtime');
 819         $this->meta['is_minor_edit'] = ( $age < MINOR_EDIT_TIMEOUT
 820                                          && $current->get('author') == $user->getId()
 821                                          );
 822
 823         // Default for new pages is new-style markup.
 824         if ($selected->hasDefaultContents())
 825             $is_new_markup = true;
 826         else
 827             $is_new_markup = $selected->get('markup') >= 2.0;
 828
 829         $this->meta['markup'] = $is_new_markup ? 2.0: false;
 830         $this->meta['pagetype'] = $selected->get('pagetype');
 831         if ($this->meta['pagetype'] == 'wikiblog')
 832             $this->meta['summary'] = $selected->get('summary'); // keep blog title
 833         else
 834             $this->meta['summary'] = '';
 835         $this->editaction = 'edit';
 836     }
 837 }
 838
 839 class LoadFileConflictPageEditor
 840 extends PageEditor
 841 {
 842     function editPage ($saveFailed = true) {
 843         $tokens = &$this->tokens;
 844
 845         if (!$this->canEdit()) {
 846             if ($this->isInitialEdit()) {
 847                 return $this->viewSource();
 848             }
 849             $tokens['PAGE_LOCKED_MESSAGE'] = $this->getLockedMessage();
 850         }
 851         elseif ($this->editaction == 'save') {
 852             if ($this->savePage()) {
 853                 return true;    // Page saved.
 854             }
 855             $saveFailed = true;
 856         }
 857
 858         if ($saveFailed || $this->isConcurrentUpdate())
 859         {
 860             // Get the text of the original page, and the two conflicting edits
 861             // The diff class takes arrays as input.  So retrieve content as
 862             // an array, or convert it as necesary.
 863             $orig = $this->page->getRevision($this->_currentVersion);
 864             $this_content = explode("\n", $this->_content);
 865             $other_content = $this->current->getContent();
 866             require_once("lib/diff.php");
 867             $diff2 = new Diff($other_content, $this_content);
 868             $context_lines = max(4, count($other_content) + 1,
 869                                  count($this_content) + 1);
 870             $fmt = new BlockDiffFormatter($context_lines);
 871
 872             $this->_content = $fmt->format($diff2);
 873             // FIXME: integrate this into class BlockDiffFormatter
 874             $this->_content = str_replace(">>>>>>>\n<<<<<<<\n", "=======\n",
 875                                           $this->_content);
 876             $this->_content = str_replace("<<<<<<<\n>>>>>>>\n", "=======\n",
 877                                           $this->_content);
 878
 879             $this->_currentVersion = $this->current->getVersion();
 880             $this->version = $this->_currentVersion;
 881             $tokens['CONCURRENT_UPDATE_MESSAGE'] = $this->getConflictMessage();
 882         }
 883
 884         if ($this->editaction == 'edit_convert')
 885             $tokens['PREVIEW_CONTENT'] = $this->getConvertedPreview();
 886         if ($this->editaction == 'preview')
 887             $tokens['PREVIEW_CONTENT'] = $this->getPreview(); // FIXME: convert to _MESSAGE?
 888
 889         // FIXME: NOT_CURRENT_MESSAGE?
 890         $tokens = array_merge($tokens, $this->getFormElements());
 891         // we need all GET params for loadfile overwrite
 892         if ($this->request->getArg('action') == 'loadfile') {
 893
 894             $this->tokens['HIDDEN_INPUTS'] =
 895                 HTML(HiddenInputs
 896                     (array('source' => $this->request->getArg('source'),
 897                            'merge'  => 1)),
 898                      $this->tokens['HIDDEN_INPUTS']);
 899             // add two conflict resolution buttons before preview and save.
 900             $tokens['PREVIEW_B'] = HTML(
 901                                     Button('submit:edit[keep_old]',
 902                                            _("Keep old"), 'wikiaction'),
 903                                     $tokens['SEP'],
 904                                     Button('submit:edit[overwrite]',
 905                                            _("Overwrite with new"), 'wikiaction'),
 906                                     $tokens['SEP'],
 907                                     $tokens['PREVIEW_B']);
 908         }
 909         if (ENABLE_EDIT_TOOLBAR and !ENABLE_WYSIWYG) {
 910             include_once("lib/EditToolbar.php");
 911             $toolbar = new EditToolbar();
 912             $tokens = array_merge($tokens, $toolbar->getTokens());
 913         }
 914
 915         return $this->output('editpage', _("Merge and Edit: %s"));
 916     }
 917
 918     function output ($template, $title_fs) {
 919         $selected = &$this->selected;
 920         $current = &$this->current;
 921
 922         if ($selected && $selected->getVersion() != $current->getVersion()) {
 923             $rev = $selected;
 924             $pagelink = WikiLink($selected);
 925         }
 926         else {
 927             $rev = $current;
 928             $pagelink = WikiLink($this->page);
 929         }
 930
 931         $title = new FormattedText ($title_fs, $pagelink);
 932         $this->tokens['HEADER'] = $title;
 933         //hack! there's no TITLE in editpage, but in the previous top template
 934         if (empty($this->tokens['PAGE_LOCKED_MESSAGE']))
 935             $this->tokens['PAGE_LOCKED_MESSAGE'] = HTML::h3($title);
 936         else
 937             $this->tokens['PAGE_LOCKED_MESSAGE'] = HTML(HTML::h3($title),
 938                                                         $this->tokens['PAGE_LOCKED_MESSAGE']);
 939         $template = Template($template, $this->tokens);
 940
 941         //GeneratePage($template, $title, $rev);
 942         PrintXML($template);
 943         return true;
 944     }
 945
 946     function getConflictMessage () {
 947         $message = HTML(HTML::p(fmt("Some of the changes could not automatically be combined.  Please look for sections beginning with '%s', and ending with '%s'.  You will need to edit those sections by hand before you click Save.",
 948                                     "<<<<<<<",
 949                                     "======="),
 950                                 HTML::p(_("Please check it through before saving."))));
 951         return $message;
 952     }
 953 }
 954
 955 // Local Variables:
 956 // mode: php
 957 // tab-width: 8
 958 // c-basic-offset: 4
 959 // c-hanging-comment-ender-p: nil
 960 // indent-tabs-mode: nil
 961 // End:
 962 ?>