4 * Copyright (C) 2003 $ThePhpWikiProgrammingTeam
6 * This file is part of PhpWiki.
8 * PhpWiki is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * PhpWiki is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with PhpWiki; if not, write to the Free Software Foundation, Inc.,
20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 * PhpWikiPlugin for PhpWiki developers to generate single page dumps
25 * for checking into Subversion, or for users or the admin to produce a
26 * downloadable page dump of a single page.
28 * This plugin will also be useful to (semi-)automatically sync pages
29 * directly between two wikis. First the LoadFile function of
30 * PhpWikiAdministration needs to be updated to handle URLs again, and
31 * add loading capability from InterWiki addresses.
33 * Multiple revisions in one file handled by format=backup
35 * TODO: What about comments/summary field? quoted-printable?
39 * http://...phpwiki/PageDump?page=HomePage?format=forsvn
40 * http://...phpwiki/index.php?PageDump&page=HomePage
41 * http://...phpwiki/index.php?PageDump&page=HomePage&download=1
43 * <<PageDump page=HomePage>>
44 * Dynamic form (put both on the page):
46 * <?plugin-form PageDump?>
47 * Typical usage: as actionbar button
50 class WikiPlugin_PageDump
56 function getDescription()
58 return _("View a single page dump online.");
61 function getDefaultArguments()
63 return array('s' => false,
64 'page' => '[pagename]',
65 //'encoding' => 'binary', // 'binary', 'quoted-printable'
66 'format' => false, // 'normal', 'forsvn', 'backup'
67 // display within WikiPage or give a downloadable
72 function run($dbi, $argstr, &$request, $basepage)
74 extract($this->getArgs($argstr, $request));
82 if (!$dbi->isWikiPage($page)) {
83 return $this->error(sprintf(_("Page ā%sā does not exist."), $page));
86 // Check if user is allowed to get the Page.
87 if (!mayAccessPage('view', $page)) {
88 return $this->error(sprintf(_("Illegal access to page %s: no read access"),
92 $p = $dbi->getPage($page);
93 include_once 'lib/loadsave.php';
94 $mailified = MailifyPage($p, ($format == 'backup') ? 99 : 1);
96 // fixup_headers massages the page dump headers depending on
97 // the 'format' argument, 'normal'(default) or 'forsvn'.
99 // Normal: add unique Message-Id, don't
100 // strip any fields from Content-Type.
102 $this->pagename = $page;
103 $this->generateMessageId($mailified);
104 if ($format == 'forsvn')
105 $this->fixup_headers_forsvn($mailified);
106 else // backup or normal
107 $this->fixup_headers($mailified);
110 // TODO: we need a way to hook into the generated headers, to override
111 // Content-Type, Set-Cookie, Cache-control, ...
112 $request->discardOutput(); // Hijack the http request from PhpWiki.
113 ob_end_clean(); // clean up after hijacking $request
114 //while (@ob_end_flush()); //debugging
115 $filename = FilenameForPage($page);
116 Header("Content-disposition: attachment; filename=\""
118 // We generate 3 Content-Type headers! first in loadsave,
119 // then here and the mimified string $mailified also has it!
120 // This one is correct and overwrites the others.
121 Header("Content-Type: application/octet-stream; name=\""
122 . $filename . "\"; charset=\"" . 'UTF-8'
124 $request->checkValidators();
125 // let $request provide last modified & etag
126 Header("Content-Id: <" . $this->MessageId . ">");
127 // be nice to http keepalive~s
128 Header("Content-Length: " . strlen($mailified));
130 // Here comes our prepared mime file
132 exit(); // noreturn! php exits.
134 // We are displaing inline preview in a WikiPage, so wrap the
135 // text if it is too long--unless quoted-printable (TODO).
136 $mailified = wordwrap($mailified, 70);
138 $dlsvn = Button(array( //'page' => $page,
139 'action' => $this->getName(),
140 'format' => 'forsvn',
142 _("Download for Subversion"),
144 $dl = Button(array( //'page' => $page,
145 'action' => $this->getName(),
147 _("Download for backup"),
149 $dlall = Button(array( //'page' => $page,
150 'action' => $this->getName(),
151 'format' => 'backup',
153 _("Download all revisions for backup"),
156 $h2 = HTML::h2(fmt("Preview: Page dump of %s",
157 WikiLink($page, 'auto')));
159 if (!$Sep = $WikiTheme->getButtonSeparator())
162 if ($format == 'forsvn') {
163 $desc = _("(formatted for PhpWiki developers as pgsrc template, not for backing up)");
164 $altpreviewbuttons = HTML(
165 Button(array('action' => $this->getName()),
166 _("Preview as normal format"),
170 'action' => $this->getName(),
171 'format' => 'backup'),
172 _("Preview as backup format"),
174 } elseif ($format == 'backup') {
175 $desc = _("(formatted for backing up: all revisions)"); // all revisions
176 $altpreviewbuttons = HTML(
177 Button(array('action' => $this->getName(),
178 'format' => 'forsvn'),
179 _("Preview as developer format"),
183 'action' => $this->getName(),
185 _("Preview as normal format"),
188 $desc = _("(normal formatting: latest revision only)");
189 $altpreviewbuttons = HTML(
190 Button(array('action' => $this->getName(),
191 'format' => 'forsvn'),
192 _("Preview as developer format"),
196 'action' => $this->getName(),
197 'format' => 'backup'),
198 _("Preview as backup format"),
202 _("Please use one of the downloadable versions rather than copying and pasting from the above preview.")
204 _("The wordwrap of the preview doesn't take nested markup or list indentation into consideration!")
207 _("PhpWiki developers should manually inspect the downloaded file for nested markup before rewrapping with emacs and checking into Subversion.")
211 return HTML($h2, HTML::em($desc),
212 HTML::pre($mailified),
214 HTML::div(array('class' => 'error'),
215 HTML::strong(_("Warning:")),
217 $dl, $Sep, $dlall, $Sep, $dlsvn
221 function generateMessageId($mailified)
223 $array = explode("\n", $mailified);
224 // Extract lastmodifed from mailified document for Content-Id
225 // and/or Message-Id header, NOT from DB (page could have been
226 // edited by someone else since we started).
227 $m1 = preg_grep("/^\s+lastmodified\=(.*);/", $array);
228 $m1 = array_values($m1); //reset resulting keys
230 $m2 = preg_split("/(^\s+lastmodified\=)|(;)/", $m1[0], 2,
231 PREG_SPLIT_NO_EMPTY);
233 // insert message id into actual message when appropriate, NOT
234 // into http header should be part of fixup_headers, in the
236 // <abbrphpwikiversion.mtimeepochTZ%InterWikiLinktothispage@hostname>
237 // Hopefully this provides a unique enough identifier without
238 // using md5. Even though this particular wiki may not
239 // actually be part of InterWiki, including this info provides
240 // the wiki name and name of the page which is being
241 // represented as a text message.
242 $this->MessageId = implode('', explode('.', PHPWIKI_VERSION))
243 . "-" . $m2[0] . date("O")
244 //. "-". rawurlencode(WIKI_NAME.":" . $request->getURLtoSelf())
245 . "-" . rawurlencode(WIKI_NAME . ":" . $this->pagename)
246 . "@" . rawurlencode(SERVER_NAME);
249 function fixup_headers(&$mailified)
251 $return = explode("\n", $mailified);
253 // Leave message intact for backing up, just add Message-Id header before transmitting.
254 $item_to_insert = "Message-Id: <" . $this->MessageId . ">";
255 $insert_into_key_position = 2;
256 $returnval_ignored = array_splice($return,
257 $insert_into_key_position,
260 $mailified = implode("\n", array_values($return));
263 function fixup_headers_forsvn(&$mailified)
265 $array = explode("\n", $mailified);
267 // Massage headers to prepare for developer checkin to Subversion.
269 Strip out all this junk:
272 lastmodified=1041561552;
276 $killme = array("author", "version", "lastmodified",
277 "author_id", "hits", "owner", "acl");
278 // UltraNasty, fixme:
279 foreach ($killme as $pattern) {
280 $array = preg_replace("/^\s\s$pattern\=.*;/",
284 // remove deleted values from array
285 for ($i = 0; $i < count($array); $i++) {
286 if (trim($array[$i]) != "zzzjunk") { //nasty, fixme
287 $return[] = $array[$i];
291 $mailified = implode("\n", $return);
299 // c-hanging-comment-ender-p: nil
300 // indent-tabs-mode: nil