2 rcs_id('$Id: PageDump.php,v 1.17 2004-09-16 07:49:01 rurban Exp $');
4 * PhpWikiPlugin for PhpWiki developers to generate single page dumps
5 * for checking into cvs, or for users or the admin to produce a
6 * downloadable page dump of a single page.
8 * This plugin will also be useful to (semi-)automatically sync pages
9 * directly between two wikis. First the LoadFile function of
10 * PhpWikiAdministration needs to be updated to handle URLs again, and
11 * add loading capability from InterWiki addresses.
13 * Multiple revisions in one file handled by format=backup
15 * TODO: What about comments/summary field? quoted-printable?
19 * http://...phpwiki/PageDump?page=HomePage?format=forcvs
20 * http://...phpwiki/index.php?PageDump&page=HomePage
21 * http://...phpwiki/index.php?PageDump&page=HomePage&download=1
23 * <?plugin PageDump page=HomePage?>
24 * Dynamic form (put both on the page):
26 * <?plugin-form PageDump?>
27 * Typical usage: as actionbar button
30 class WikiPlugin_PageDump
38 function getDescription() {
39 return _("View a single page dump online.");
42 function getVersion() {
43 return preg_replace("/[Revision: $]/", '',
44 "\$Revision: 1.17 $");
47 function getDefaultArguments() {
48 return array('s' => false,
49 'page' => '[pagename]',
50 //'encoding' => 'binary', // 'binary', 'quoted-printable'
51 'format' => false, // 'normal', 'forcvs', 'backup'
52 // display within WikiPage or give a downloadable
57 function run($dbi, $argstr, &$request, $basepage) {
58 extract($this->getArgs($argstr, $request));
64 if (! $dbi->isWikiPage($page) )
65 return fmt("Page %s not found.",
66 WikiLink($page, 'unknown'));
68 $p = $dbi->getPage($page);
69 include_once("lib/loadsave.php");
70 $mailified = MailifyPage($p, ($format == 'backup') ? 99 : 1);
72 // fixup_headers massages the page dump headers depending on
73 // the 'format' argument, 'normal'(default) or 'forcvs'.
75 // Normal: Don't add X-Rcs-Id, add unique Message-Id, don't
76 // strip any fields from Content-Type.
78 // ForCVS: Add empty X-Rcs-Id, strip attributes from
79 // Content-Type field: "author", "version", "lastmodified",
80 // "author_id", "hits".
82 $this->pagename = $page;
83 $this->generateMessageId($mailified);
84 if ($format == 'forcvs')
85 $this->fixup_headers_forcvs($mailified);
86 else // backup or normal
87 $this->fixup_headers($mailified);
90 // TODO: we need a way to hook into the generated headers, to override
91 // Content-Type, Set-Cookie, Cache-control, ...
92 $request->discardOutput(); // Hijack the http request from PhpWiki.
93 ob_end_clean(); // clean up after hijacking $request
94 //ob_end_flush(); //debugging
95 Header("Content-disposition: attachment; filename=\""
96 . FilenameForPage($page) . "\"");
97 // Read charset from generated page itself.
98 // Inconsequential at the moment, since loadsave.php
99 // always generates headers
100 $charset = $p->get('charset');
101 if (!$charset) $charset = $GLOBALS['charset'];
102 // We generate 3 Content-Type headers! first in loadsave,
103 // then here and the mimified string $mailified also has it!
104 Header("Content-Type: text/plain; name=\""
105 . FilenameForPage($page) . "\"; charset=\"" . $charset
107 $request->checkValidators();
108 // let $request provide last modifed & etag
109 Header("Content-Id: <" . $this->MessageId . ">");
110 // be nice to http keepalive~s
111 // FIXME: he length is wrong BTW. must strip the header.
112 Header("Content-Length: " . strlen($mailified));
114 // Here comes our prepared mime file
116 exit; // noreturn! php exits.
119 // We are displaing inline preview in a WikiPage, so wrap the
120 // text if it is too long--unless quoted-printable (TODO).
121 $mailified = safe_wordwrap($mailified, 70);
123 $dlcvs = Button(array(//'page' => $page,
124 'action' => $this->getName(),
127 _("Download for CVS"),
129 $dl = Button(array(//'page' => $page,
130 'action' => $this->getName(),
132 _("Download for backup"),
134 $dlall = Button(array(//'page' => $page,
135 'action' => $this->getName(),
138 _("Download all revisions for backup"),
141 $h2 = HTML::h2(fmt("Preview: Page dump of %s",
142 WikiLink($page, 'auto')));
144 if (!$Sep = $WikiTheme->getButtonSeparator())
147 if ($format == 'forcvs') {
148 $desc = _("(formatted for PhpWiki developers as pgsrc template, not for backing up)");
149 $altpreviewbuttons = HTML(
150 Button(array('action' => $this->getName()),
151 _("Preview as normal format"),
155 'action' => $this->getName(),
156 'format'=> 'backup'),
157 _("Preview as backup format"),
160 elseif ($format == 'backup') {
161 $desc = _("(formatted for backing up: all revisions)"); // all revisions
162 $altpreviewbuttons = HTML(
163 Button(array('action' => $this->getName(),
164 'format'=> 'forcvs'),
165 _("Preview as developer format"),
169 'action' => $this->getName(),
171 _("Preview as normal format"),
174 $desc = _("(normal formatting: latest revision only)");
175 $altpreviewbuttons = HTML(
176 Button(array('action' => $this->getName(),
177 'format'=> 'forcvs'),
178 _("Preview as developer format"),
182 'action' => $this->getName(),
183 'format'=> 'backup'),
184 _("Preview as backup format"),
188 _("Please use one of the downloadable versions rather than copying and pasting from the above preview.")
190 _("The wordwrap of the preview doesn't take nested markup or list indentation into consideration!")
193 _("PhpWiki developers should manually inspect the downloaded file for nested markup before rewrapping with emacs and checking into CVS.")
197 return HTML($h2, HTML::em($desc),
198 HTML::pre($mailified),
200 HTML::div(array('class' => 'errors'),
201 HTML::strong(_("Warning:")),
203 $dl, $Sep, $dlall, $Sep, $dlcvs
207 // function handle_plugin_args_cruft(&$argstr, &$args) {
210 function generateMessageId($mailified) {
211 $array = explode("\n", $mailified);
212 // Extract lastmodifed from mailified document for Content-Id
213 // and/or Message-Id header, NOT from DB (page could have been
214 // edited by someone else since we started).
215 $m1 = preg_grep("/^\s+lastmodified\=(.*);/", $array);
216 $m1 = array_values($m1); //reset resulting keys
218 $m2 = preg_split("/(^\s+lastmodified\=)|(;)/", $m1[0], 2,
219 PREG_SPLIT_NO_EMPTY);
221 // insert message id into actual message when appropriate, NOT
222 // into http header should be part of fixup_headers, in the
224 // <abbrphpwikiversion.mtimeepochTZ%InterWikiLinktothispage@hostname>
225 // Hopefully this provides a unique enough identifier without
226 // using md5. Even though this particular wiki may not
227 // actually be part of InterWiki, including this info provides
228 // the wiki name and name of the page which is being
229 // represented as a text message.
230 $this->MessageId = implode('', explode('.', PHPWIKI_VERSION))
231 . "-" . $m2[0] . date("O")
232 //. "-". rawurlencode(WIKI_NAME.":" . $request->getURLtoSelf())
233 . "-". rawurlencode(WIKI_NAME.":" . $this->pagename)
234 . "@". rawurlencode(SERVER_NAME);
237 function fixup_headers(&$mailified) {
238 $return = explode("\n", $mailified);
240 // Leave message intact for backing up, just add Message-Id header before transmitting.
241 $item_to_insert = "Message-Id: <" . $this->MessageId .">";
242 $insert_into_key_position = 2;
243 $returnval_ignored = array_splice($return,
244 $insert_into_key_position,
247 $mailified = implode("\n", array_values($return));
250 function fixup_headers_forcvs(&$mailified) {
251 $array = explode("\n", $mailified);
253 // Massage headers to prepare for developer checkin to CVS.
254 $item_to_insert = "X-Rcs-Id: \$Id\$";
255 $insert_into_key_position = 2;
256 $returnval_ignored = array_splice($array,
257 $insert_into_key_position,
260 $item_to_insert = " pgsrc_version=\"2 \$Revision\$\";";
261 $insert_into_key_position = 5;
262 $returnval_ignored = array_splice($array,
263 $insert_into_key_position,
266 Strip out all this junk:
269 lastmodified=1041561552;
273 $killme = array("author", "version", "lastmodified",
274 "author_id", "hits", "owner", "acl");
275 // UltraNasty, fixme:
276 foreach ($killme as $pattern) {
277 $array = preg_replace("/^\s\s$pattern\=.*;/",
278 /*$replacement =*/"zzzjunk", $array);
280 // remove deleted values from array
281 for ($i = 0; $i < count($array); $i++ ) {
282 if(trim($array[$i]) != "zzzjunk") { //nasty, fixme
283 //trigger_error("'$array[$i]'");//debugging
284 $return[] =$array[$i];
288 $mailified = implode("\n", $return);
292 // $Log: not supported by cvs2svn $
293 // Revision 1.16 2004/07/01 06:31:23 rurban
296 // Revision 1.15 2004/06/29 10:09:06 rurban
299 // Revision 1.14 2004/06/29 10:07:40 rurban
300 // added dump of all revisions by format=backup (screen and download)
302 // Revision 1.13 2004/06/17 10:39:18 rurban
303 // fix reverse translation of possible actionpage
305 // Revision 1.12 2004/06/16 13:32:43 rurban
306 // fix urlencoding of pagename in PageDump buttons
308 // Revision 1.11 2004/06/14 11:31:39 rurban
309 // renamed global $Theme to $WikiTheme (gforge nameclash)
310 // inherit PageList default options from PageList
311 // default sortby=pagename
312 // use options in PageList_Selectable (limit, sortby, ...)
313 // added action revert, with button at action=diff
314 // added option regex to WikiAdminSearchReplace
316 // Revision 1.10 2004/06/07 22:28:05 rurban
317 // add acl field to mimified dump
319 // Revision 1.9 2004/06/07 19:50:41 rurban
320 // add owner field to mimified dump
322 // Revision 1.8 2004/05/25 12:43:29 rurban
323 // ViewSource link, better actionpage usage
325 // Revision 1.7 2004/05/04 17:21:06 rurban
326 // revert previous patch
328 // Revision 1.6 2004/05/03 20:44:55 rurban
329 // fixed gettext strings
330 // new SqlResult plugin
331 // _WikiTranslation: fixed init_locale
333 // Revision 1.5 2004/05/03 17:42:44 rurban
334 // fix cvs tags: "$tag$" => "$tag: $"
336 // Revision 1.4 2004/04/18 01:11:52 rurban
337 // more numeric pagename fixes.
338 // fixed action=upload with merge conflict warnings.
339 // charset changed from constant to global (dynamic utf-8 switching)
341 // Revision 1.3 2004/02/17 12:11:36 rurban
342 // added missing 4th basepage arg at plugin->run() to almost all plugins. This caused no harm so far, because it was silently dropped on normal usage. However on plugin internal ->run invocations it failed. (InterWikiSearch, IncludeSiteMap, ...)
344 // Revision 1.2 2003/12/12 01:08:30 carstenklapp
345 // QuickFix for invalid Message-Id header format.
347 // Revision 1.1 2003/12/12 00:52:55 carstenklapp
348 // New feature: Plugin to download page dumps of individual pages. In the
349 // future this could be used as a rudimentary way to sync pages between
351 // Internal changes: enhanced and renamed from the experimental
352 // _MailifyPage plugin.
354 // Revision 1.3 2003/11/16 00:11:25 carstenklapp
355 // Fixed previous Log comment interfering with PHP (sorry).
356 // Improved error handling.
358 // Revision 1.2 2003/11/15 23:37:51 carstenklapp
359 // Enhanced plugin to allow invocation with \<\?plugin-form PageDump\?\>.
361 // Revision 1.1 2003/02/20 18:03:04 carstenklapp
362 // New experimental WikiPlugin for internal use only by PhpWiki developers.
370 // c-hanging-comment-ender-p: nil
371 // indent-tabs-mode: nil