1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
|
<?php
/**
* Copyright (C) 2004 Gabriel Wicke <wicke@wikidev.net>
* http://wikidev.net/
* Based on PageHistory and SpecialExport
*
* License: GPL (http://www.gnu.org/copyleft/gpl.html)
*
* @author Gabriel Wicke <wicke@wikidev.net>
* @file
*/
/**
* A simple method to retrieve the plain source of an article,
* using "action=raw" in the GET request string.
*/
class RawPage {
var $mArticle, $mTitle, $mRequest;
var $mOldId, $mGen, $mCharset, $mSection;
var $mSmaxage, $mMaxage;
var $mContentType, $mExpandTemplates;
function __construct( &$article, $request = false ) {
global $wgRequest, $wgInputEncoding, $wgSquidMaxage, $wgJsMimeType, $wgGroupPermissions;
$allowedCTypes = array('text/x-wiki', $wgJsMimeType, 'text/css', 'application/x-zope-edit');
$this->mArticle =& $article;
$this->mTitle =& $article->mTitle;
if( $request === false ) {
$this->mRequest =& $wgRequest;
} else {
$this->mRequest = $request;
}
$ctype = $this->mRequest->getVal( 'ctype' );
$smaxage = $this->mRequest->getIntOrNull( 'smaxage' );
$maxage = $this->mRequest->getInt( 'maxage', $wgSquidMaxage );
$this->mExpandTemplates = $this->mRequest->getVal( 'templates' ) === 'expand';
$this->mUseMessageCache = $this->mRequest->getBool( 'usemsgcache' );
$this->mSection = $this->mRequest->getIntOrNull( 'section' );
$oldid = $this->mRequest->getInt( 'oldid' );
switch( $wgRequest->getText( 'direction' ) ) {
case 'next':
# output next revision, or nothing if there isn't one
if( $oldid ) {
$oldid = $this->mTitle->getNextRevisionId( $oldid );
}
$oldid = $oldid ? $oldid : -1;
break;
case 'prev':
# output previous revision, or nothing if there isn't one
if( ! $oldid ) {
# get the current revision so we can get the penultimate one
$this->mArticle->getTouched();
$oldid = $this->mArticle->mLatest;
}
$prev = $this->mTitle->getPreviousRevisionId( $oldid );
$oldid = $prev ? $prev : -1 ;
break;
case 'cur':
$oldid = 0;
break;
}
$this->mOldId = $oldid;
# special case for 'generated' raw things: user css/js
$gen = $this->mRequest->getVal( 'gen' );
if( $gen == 'css' ) {
$this->mGen = $gen;
if( is_null( $smaxage ) ) $smaxage = $wgSquidMaxage;
if($ctype == '') $ctype = 'text/css';
} elseif( $gen == 'js' ) {
$this->mGen = $gen;
if( is_null( $smaxage ) ) $smaxage = $wgSquidMaxage;
if($ctype == '') $ctype = $wgJsMimeType;
} else {
$this->mGen = false;
}
$this->mCharset = $wgInputEncoding;
# Force caching for CSS and JS raw content, default: 5 minutes
if( is_null($smaxage) and ($ctype=='text/css' or $ctype==$wgJsMimeType) ) {
global $wgForcedRawSMaxage;
$this->mSmaxage = intval($wgForcedRawSMaxage);
} else {
$this->mSmaxage = intval( $smaxage );
}
$this->mMaxage = $maxage;
# Output may contain user-specific data;
# vary generated content for open sessions and private wikis
if( $this->mGen or !$wgGroupPermissions['*']['read'] ) {
$this->mPrivateCache = $this->mSmaxage == 0 || session_id() != '';
} else {
$this->mPrivateCache = false;
}
if( $ctype == '' or ! in_array( $ctype, $allowedCTypes ) ) {
$this->mContentType = 'text/x-wiki';
} else {
$this->mContentType = $ctype;
}
}
function view() {
global $wgOut, $wgScript;
if( isset( $_SERVER['SCRIPT_URL'] ) ) {
# Normally we use PHP_SELF to get the URL to the script
# as it was called, minus the query string.
#
# Some sites use Apache rewrite rules to handle subdomains,
# and have PHP set up in a weird way that causes PHP_SELF
# to contain the rewritten URL instead of the one that the
# outside world sees.
#
# If in this mode, use SCRIPT_URL instead, which mod_rewrite
# provides containing the "before" URL.
$url = $_SERVER['SCRIPT_URL'];
} else {
$url = $_SERVER['PHP_SELF'];
}
if( $url == '' ) {
# This will make the next check fail with a confusing error
# message, so we should mention it separately.
wfHttpError( 500, 'Internal Server Error',
"\$_SERVER['PHP_SELF'] is not set. Perhaps you're using CGI" .
" and haven't set cgi.fix_pathinfo = 1 in php.ini?" );
return;
}
if( strcmp( $wgScript, $url ) ) {
# Internet Explorer will ignore the Content-Type header if it
# thinks it sees a file extension it recognizes. Make sure that
# all raw requests are done through the script node, which will
# have eg '.php' and should remain safe.
#
# We used to redirect to a canonical-form URL as a general
# backwards-compatibility / good-citizen nice thing. However
# a lot of servers are set up in buggy ways, resulting in
# redirect loops which hang the browser until the CSS load
# times out.
#
# Just return a 403 Forbidden and get it over with.
wfHttpError( 403, 'Forbidden',
'Raw pages must be accessed through the primary script entry point.' );
return;
}
header( "Content-type: ".$this->mContentType.'; charset='.$this->mCharset );
# allow the client to cache this for 24 hours
$mode = $this->mPrivateCache ? 'private' : 'public';
header( 'Cache-Control: '.$mode.', s-maxage='.$this->mSmaxage.', max-age='.$this->mMaxage );
if( HTMLFileCache::useFileCache() ) {
$cache = new HTMLFileCache( $this->mTitle, 'raw' );
if( $cache->isFileCacheGood( /* Assume up to date */ ) ) {
$cache->loadFromFileCache();
$wgOut->disable();
return;
} else {
ob_start( array(&$cache, 'saveToFileCache' ) );
}
}
$text = $this->getRawText();
if( !wfRunHooks( 'RawPageViewBeforeOutput', array( &$this, &$text ) ) ) {
wfDebug( __METHOD__ . ": RawPageViewBeforeOutput hook broke raw page output.\n" );
}
echo $text;
$wgOut->disable();
}
function getRawText() {
global $wgUser, $wgOut, $wgRequest;
if( $this->mGen ) {
$sk = $wgUser->getSkin();
if( !StubObject::isRealObject( $wgOut ) )
$wgOut->_unstub( 2 );
$sk->initPage( $wgOut );
if( $this->mGen == 'css' ) {
return $sk->generateUserStylesheet();
} else if( $this->mGen == 'js' ) {
return $sk->generateUserJs();
}
} else {
return $this->getArticleText();
}
}
function getArticleText() {
$found = false;
$text = '';
if( $this->mTitle ) {
// If it's a MediaWiki message we can just hit the message cache
if( $this->mUseMessageCache && $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
$key = $this->mTitle->getDBkey();
$text = wfMsgForContentNoTrans( $key );
# If the message doesn't exist, return a blank
if( wfEmptyMsg( $key, $text ) )
$text = '';
$found = true;
} else {
// Get it from the DB
$rev = Revision::newFromTitle( $this->mTitle, $this->mOldId );
if( $rev ) {
$lastmod = wfTimestamp( TS_RFC2822, $rev->getTimestamp() );
header( "Last-modified: $lastmod" );
if( !is_null($this->mSection ) ) {
global $wgParser;
$text = $wgParser->getSection ( $rev->getText(), $this->mSection );
} else
$text = $rev->getText();
$found = true;
}
}
}
# Bad title or page does not exist
if( !$found && $this->mContentType == 'text/x-wiki' ) {
# Don't return a 404 response for CSS or JavaScript;
# 404s aren't generally cached and it would create
# extra hits when user CSS/JS are on and the user doesn't
# have the pages.
header( "HTTP/1.0 404 Not Found" );
}
// Special-case for empty CSS/JS
//
// Internet Explorer for Mac handles empty files badly;
// particularly so when keep-alive is active. It can lead
// to long timeouts as it seems to sit there waiting for
// more data that never comes.
//
// Give it a comment...
if( strlen( $text ) == 0 &&
($this->mContentType == 'text/css' ||
$this->mContentType == 'text/javascript' ) ) {
return "/* Empty */";
}
return $this->parseArticleText( $text );
}
function parseArticleText( $text ) {
if( $text === '' )
return '';
else
if( $this->mExpandTemplates ) {
global $wgParser;
return $wgParser->preprocess( $text, $this->mTitle, new ParserOptions() );
} else
return $text;
}
}
|
