summaryrefslogtreecommitdiff
path: root/maintenance/installExtension.php
blob: 549c4a68183ca211593f1383aff49c104d142b4c (plain)
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
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
<?php
/**
 * Copyright (C) 2006 Daniel Kinzler, brightbyte.de
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @addtogroup Maintenance
 */

$optionsWithArgs = array( 'target', 'repository', 'repos' );

require_once( 'commandLine.inc' );

define('EXTINST_NOPATCH', 0);
define('EXTINST_WRITEPATCH', 6);
define('EXTINST_HOTPATCH', 10);

class InstallerRepository {
	var $path;
	
	function InstallerRepository( $path ) {
		$this->path = $path;
	}

	function printListing( ) {
		trigger_error( 'override InstallerRepository::printListing()', E_USER_ERROR );
	}        

	function getResource( $name ) {
		trigger_error( 'override InstallerRepository::getResource()', E_USER_ERROR );
	}        
	
	/*static*/ function makeRepository( $path, $type = NULL ) {
		if ( !$type ) {
			$m = array();
			preg_match( '!(([-+\w]+)://)?.*?(\.[-\w\d.]+)?$!', $path, $m );
			$proto = @$m[2];
			
			if ( !$proto ) {
				$type = 'dir';
			} else if ( ( $proto == 'http' || $proto == 'https' ) && preg_match( '!([^\w]svn|svn[^\w])!i', $path) ) {
				$type = 'svn'; #HACK!
			} else  {
				$type = $proto;
			}
		}
		
		if ( $type == 'dir' || $type == 'file' ) { return new LocalInstallerRepository( $path ); }
		else if ( $type == 'http' || $type == 'http' ) { return new WebInstallerRepository( $path ); }
		else { return new SVNInstallerRepository( $path ); }
	}
}

class LocalInstallerRepository extends InstallerRepository {

	function LocalInstallerRepository ( $path ) {
		InstallerRepository::InstallerRepository( $path );
	}

	function printListing( ) {
		$ff = glob( "{$this->path}/*" );
		if ( $ff === false || $ff === NULL ) {
			ExtensionInstaller::error( "listing directory {$this->path} failed!" );
			return false;
		}
		
		foreach ( $ff as $f ) {
			$n = basename($f);
			
			if ( !is_dir( $f ) ) {
				$m = array();
				if ( !preg_match( '/(.*)\.(tgz|tar\.gz|zip)/', $n, $m ) ) continue;
				$n = $m[1];
			}

			print "\t$n\n";
		}
	}        

	function getResource( $name ) {
		$path = $this->path . '/' . $name;

		if ( !file_exists( $path ) || !is_dir( $path ) ) $path = $this->path . '/' . $name . '.tgz';
		if ( !file_exists( $path ) ) $path = $this->path . '/' . $name . '.tar.gz';
		if ( !file_exists( $path ) ) $path = $this->path . '/' . $name . '.zip';

		return new LocalInstallerResource( $path );
	}        
}

class WebInstallerRepository extends InstallerRepository {

	function WebInstallerRepository ( $path ) {
		InstallerRepository::InstallerRepository( $path );
	}

	function printListing( ) {
		ExtensionInstaller::note( "listing index from {$this->path}..." );
		
		$txt = @file_get_contents( $this->path . '/index.txt' );
		if ( $txt ) {
			print $txt;
			print "\n";
		}
		else {
			$txt = file_get_contents( $this->path );
			if ( !$txt ) {
				ExtensionInstaller::error( "listing index from {$this->path} failed!" );
				print ( $txt );
				return false;
			}

			$m = array();
			$ok = preg_match_all( '!<a\s[^>]*href\s*=\s*['."'".'"]([^/'."'".'"]+)\.tgz['."'".'"][^>]*>.*?</a>!si', $txt, $m, PREG_SET_ORDER ); 
			if ( !$ok ) {
				ExtensionInstaller::error( "listing index from {$this->path} does not match!" );
				print ( $txt );
				return false;
			}
			
			foreach ( $m as $l ) {
				$n = $l[1];
				print "\t$n\n";
			}
		}
	}        

	function getResource( $name ) {
		$path = $this->path . '/' . $name . '.tgz';
		return new WebInstallerResource( $path );
	}        
}

class SVNInstallerRepository extends InstallerRepository {

	function SVNInstallerRepository ( $path ) {
		InstallerRepository::InstallerRepository( $path );
	}

	function printListing( ) {
		ExtensionInstaller::note( "SVN list {$this->path}..." );
		$code = null; // Shell Exec return value.
		$txt = wfShellExec( 'svn ls ' . escapeshellarg( $this->path ), $code );
		if ( $code !== 0 ) {
			ExtensionInstaller::error( "svn list for {$this->path} failed!" );
			return false;
		}
		
		$ll = preg_split('/(\s*[\r\n]\s*)+/', $txt);
		
		foreach ( $ll as $line ) {
			$m = array();
			if ( !preg_match('!^(.*)/$!', $line, $m) ) continue;
			$n = $m[1];
			          
			print "\t$n\n";
		}
	}        

	function getResource( $name ) {
		$path = $this->path . '/' . $name;
		return new SVNInstallerResource( $path );
	}        
}

class InstallerResource {
	var $path;
	var $isdir;
	var $islocal;
	
	function InstallerResource( $path, $isdir, $islocal ) {
		$this->path = $path;
		
		$this->isdir= $isdir;
		$this->islocal = $islocal;

		$m = array();
		preg_match( '!([-+\w]+://)?.*?(\.[-\w\d.]+)?$!', $path, $m );

		$this->protocol = @$m[1];
		$this->extensions = @$m[2];

		if ( $this->extensions ) $this->extensions = strtolower( $this->extensions );
	}

	function fetch( $target ) {
		trigger_error( 'override InstallerResource::fetch()', E_USER_ERROR );
	}        

	function extract( $file, $target ) {
		
		if ( $this->extensions == '.tgz' || $this->extensions == '.tar.gz' ) { #tgz file
			ExtensionInstaller::note( "extracting $file..." );
			$code = null; // shell Exec return value.
			wfShellExec( 'tar zxvf ' . escapeshellarg( $file ) . ' -C ' . escapeshellarg( $target ), $code );
			
			if ( $code !== 0 ) {
				ExtensionInstaller::error( "failed to extract $file!" );
				return false;
			}
		}
		else if ( $this->extensions == '.zip' ) { #zip file
			ExtensionInstaller::note( "extracting $file..." );
			$code = null; // shell Exec return value.
			wfShellExec( 'unzip ' . escapeshellarg( $file ) . ' -d ' . escapeshellarg( $target ) , $code );
			
			if ( $code !== 0 ) {
				ExtensionInstaller::error( "failed to extract $file!" );
				return false;
			}
		}
		else { 
			ExtensionInstaller::error( "unknown extension {$this->extensions}!" );
			return false;
		}

		return true;
	}        

	/*static*/ function makeResource( $url ) {
		$m = array();
		preg_match( '!(([-+\w]+)://)?.*?(\.[-\w\d.]+)?$!', $url, $m );
		$proto = @$m[2];
		$ext = @$m[3];
		if ( $ext ) $ext = strtolower( $ext );
		
		if ( !$proto ) { return new LocalInstallerResource( $url, $ext ? false : true ); }
		else if ( $ext && ( $proto == 'http' || $proto == 'http' || $proto == 'ftp' ) ) { return new WebInstallerResource( $url ); }
		else { return new SVNInstallerResource( $url ); }
	}
}

class LocalInstallerResource extends InstallerResource {
	function LocalInstallerResource( $path ) {
		InstallerResource::InstallerResource( $path, is_dir( $path ), true );
	}
        
	function fetch( $target ) {
		if ( $this->isdir ) return ExtensionInstaller::copyDir( $this->path, dirname( $target ) );
		else return $this->extract( $this->path, dirname( $target ) );
	}
        
}

class WebInstallerResource extends InstallerResource {
	function WebInstallerResource( $path ) {
		InstallerResource::InstallerResource( $path, false, false );
	}
        
	function fetch( $target ) {
		$tmp = wfTempDir() . '/' . basename( $this->path );
		
		ExtensionInstaller::note( "downloading {$this->path}..." );
		$ok = copy( $this->path, $tmp );
		
		if ( !$ok ) {
			ExtensionInstaller::error( "failed to download {$this->path}" );
			return false;
		}
		
		$this->extract( $tmp, dirname( $target ) );
		unlink($tmp);
		
		return true;
	}        
}

class SVNInstallerResource extends InstallerResource {
	function SVNInstallerResource( $path ) {
		InstallerResource::InstallerResource( $path, true, false );
	}
        
	function fetch( $target ) {
		ExtensionInstaller::note( "SVN checkout of {$this->path}..." );
		$code = null; // shell exec return val.
		wfShellExec( 'svn co ' . escapeshellarg( $this->path ) . ' ' . escapeshellarg( $target ), $code );

		if ( $code !== 0 ) {
			ExtensionInstaller::error( "checkout failed for {$this->path}!" );
			return false;
		}
		
		return true;
	}        
}

class ExtensionInstaller {
	var $source;
	var $target;
	var $name;
	var $dir;
	var $tasks;

	function ExtensionInstaller( $name, $source, $target ) {
		if ( !is_object( $source ) ) $source = InstallerResource::makeResource( $source );

		$this->name = $name;
		$this->source = $source;
		$this->target = realpath( $target );
		$this->extdir = "$target/extensions";
		$this->dir = "{$this->extdir}/$name";
		$this->incpath = "extensions/$name";
		$this->tasks = array();
		
		#TODO: allow a subdir different from "extensions"
		#TODO: allow a config file different from "LocalSettings.php"
	}

	function note( $msg ) {
		print "$msg\n";
	}

	function warn( $msg ) {
		print "WARNING: $msg\n";
	}

	function error( $msg ) {
		print "ERROR: $msg\n";
	}

	function prompt( $msg ) {
		if ( function_exists( 'readline' ) ) {
			$s = readline( $msg );
		}
		else {
			if ( !@$this->stdin ) $this->stdin = fopen( 'php://stdin', 'r' );
			if ( !$this->stdin ) die( "Failed to open stdin for user interaction!\n" );
			
			print $msg;
			flush();
			
			$s = fgets( $this->stdin );
		}
		
		$s = trim( $s );
		return $s;                
	}

	function confirm( $msg ) {
		while ( true ) {        
			$s = $this->prompt( $msg . " [yes/no]: ");
			$s = strtolower( trim($s) );
			
			if ( $s == 'yes' || $s == 'y' ) { return true; }
			else if ( $s == 'no' || $s == 'n' ) { return false; }
			else { print "bad response: $s\n"; }
		}
	}

	function deleteContents( $dir ) {
		$ff = glob( $dir . "/*" );
		if ( !$ff ) return;

		foreach ( $ff as $f ) {
			if ( is_dir( $f ) && !is_link( $f ) ) $this->deleteContents( $f );
			unlink( $f );
		}
	}
        
	function copyDir( $dir, $tgt ) {
		$d = $tgt . '/' . basename( $dir );
		
		if ( !file_exists( $d ) ) {
			$ok = mkdir( $d );
			if ( !$ok ) {
				ExtensionInstaller::error( "failed to create director $d" );
				return false;
			}
		}

		$ff = glob( $dir . "/*" );
		if ( $ff === false || $ff === NULL ) return false;

		foreach ( $ff as $f ) {
			if ( is_dir( $f ) && !is_link( $f ) ) {
				$ok = ExtensionInstaller::copyDir( $f, $d );
				if ( !$ok ) return false;
			}
			else {
				$t = $d . '/' . basename( $f );
				$ok = copy( $f, $t );

				if ( !$ok ) {
					ExtensionInstaller::error( "failed to copy $f to $t" );
					return false;
				}
			}
		}
		
		return true;
	}

	function setPermissions( $dir, $dirbits, $filebits ) {
		if ( !chmod( $dir, $dirbits ) ) ExtensionInstaller::warn( "faield to set permissions for $dir" );
        
		$ff = glob( $dir . "/*" );
		if ( $ff === false || $ff === NULL ) return false;

		foreach ( $ff as $f ) {
			$n= basename( $f );
			if ( $n{0} == '.' ) continue; #HACK: skip dot files
			
			if ( is_link( $f ) ) continue; #skip link
			
			if ( is_dir( $f ) ) {
				ExtensionInstaller::setPermissions( $f, $dirbits, $filebits );
			}
			else {
				if ( !chmod( $f, $filebits ) ) ExtensionInstaller::warn( "faield to set permissions for $f" );
			}
		}
		
		return true;
	}

	function fetchExtension( ) {
		if ( $this->source->islocal && $this->source->isdir && realpath( $this->source->path ) === $this->dir ) {
			$this->note( "files are already in the extension dir" );
			return true;
		}

		if ( file_exists( $this->dir ) && glob( $this->dir . "/*" ) ) {
			if ( $this->confirm( "{$this->dir} exists and is not empty.\nDelete all files in that directory?" ) ) {
				$this->deleteContents( $this->dir );
			}                        
			else {
				return false;
			}                        
		}

		$ok = $this->source->fetch( $this->dir );
		if ( !$ok ) return false;

		if ( !file_exists( $this->dir ) && glob( $this->dir . "/*" ) ) {
			$this->error( "{$this->dir} does not exist or is empty. Something went wrong, sorry." );
			return false;
		}

		if ( file_exists( $this->dir . '/README' ) ) $this->tasks[] = "read the README file in {$this->dir}";
		if ( file_exists( $this->dir . '/INSTALL' ) ) $this->tasks[] = "read the INSTALL file in {$this->dir}";
		if ( file_exists( $this->dir . '/RELEASE-NOTES' ) ) $this->tasks[] = "read the RELEASE-NOTES file in {$this->dir}";

		#TODO: configure this smartly...?
		$this->setPermissions( $this->dir, 0755, 0644 );

		$this->note( "fetched extension to {$this->dir}" );
		return true;
	}

	function patchLocalSettings( $mode ) {
		#NOTE: if we get a better way to hook up extensions, that should be used instead.

		$f = $this->dir . '/install.settings';
		$t = $this->target . '/LocalSettings.php';
		
		#TODO: assert version ?!
		#TODO: allow custom installer scripts + sql patches
		
		if ( !file_exists( $f ) ) {
			$this->warn( "No install.settings file provided!" );
			$this->tasks[] = "Please read the instructions and edit LocalSettings.php manually to activate the extension.";
			return '?';
		}
		else {
			$this->note( "applying settings patch..." );
		}
		
		$settings = file_get_contents( $f );
		                
		if ( !$settings ) {
			$this->error( "failed to read settings from $f!" );
			return false;
		}
		                
		$settings = str_replace( '{{path}}', $this->incpath, $settings );
		
		if ( $mode == EXTINST_NOPATCH ) {
			$this->tasks[] = "Please put the following into your LocalSettings.php:" . "\n$settings\n";
			$this->note( "Skipping patch phase, automatic patching is off." );
			return true;
		}
		
		if ( $mode == EXTINST_HOTPATCH ) {
			#NOTE: keep php extension for backup file!
			$bak = $this->target . '/LocalSettings.install-' . $this->name . '-' . wfTimestamp(TS_MW) . '.bak.php';
			                
			$ok = copy( $t, $bak );
			                
			if ( !$ok ) {
				$this->warn( "failed to create backup of LocalSettings.php!" );
				return false;
			}
			else {
				$this->note( "created backup of LocalSettings.php at $bak" );
			}
		}
		                
		$localsettings = file_get_contents( $t );
		                
		if ( !$settings ) {
			$this->error( "failed to read $t for patching!" );
			return false;
		}
		                
		$marker = "<@< extension {$this->name} >@>";
		$blockpattern = "/\n\s*#\s*BEGIN\s*$marker.*END\s*$marker\s*/smi";
		
		if ( preg_match( $blockpattern, $localsettings ) ) {
			$localsettings = preg_replace( $blockpattern, "\n", $localsettings );
			$this->warn( "removed old configuration block for extension {$this->name}!" );
		}
		
		$newblock= "\n# BEGIN $marker\n$settings\n# END $marker\n";
		
		$localsettings = preg_replace( "/\?>\s*$/si", "$newblock?>", $localsettings );
		
		if ( $mode != EXTINST_HOTPATCH ) {
			$t = $this->target . '/LocalSettings.install-' . $this->name . '-' . wfTimestamp(TS_MW) . '.php';
		}
		
		$ok = file_put_contents( $t, $localsettings );
		
		if ( !$ok ) {
			$this->error( "failed to patch $t!" );
			return false;
		}
		else if ( $mode == EXTINST_HOTPATCH ) {
			$this->note( "successfully patched $t" );
		}
		else  {
			$this->note( "created patched settings file $t" );
			$this->tasks[] = "Replace your current LocalSettings.php with ".basename($t);
		}
		
		return true;
	}

	function printNotices( ) {
		if ( !$this->tasks ) {
			$this->note( "Installation is complete, no pending tasks" );
		}
		else {
			$this->note( "" );
			$this->note( "PENDING TASKS:" );
			$this->note( "" );
			   
			foreach ( $this->tasks as $t ) {
				$this->note ( "* " . $t );
			}
			
			$this->note( "" );
		}
		
		return true;
	}
        
}

$tgt = isset ( $options['target'] ) ? $options['target'] : $IP;

$repos = @$options['repository'];
if ( !$repos ) $repos = @$options['repos'];
if ( !$repos ) $repos = @$wgExtensionInstallerRepository;

if ( !$repos && file_exists("$tgt/.svn") && is_dir("$tgt/.svn") ) {
	$svn = file_get_contents( "$tgt/.svn/entries" );
	
	$m = array();
	if ( preg_match( '!url="(.*?)"!', $svn, $m ) ) {
		$repos = dirname( $m[1] ) . '/extensions';
	}
}

if ( !$repos ) $repos = 'http://svn.wikimedia.org/svnroot/mediawiki/trunk/extensions';

if( !isset( $args[0] ) && !@$options['list'] ) {
	die( "USAGE: installExtension.php [options] <name> [source]\n" .
		"OPTIONS: \n" . 
		"    --list            list available extensions. <name> is ignored / may be omitted.\n" .
		"    --repository <n>  repository to fetch extensions from. May be a local directoy,\n" .
		"                      an SVN repository or a HTTP directory\n" .
		"    --target <dir>    mediawiki installation directory to use\n" .
		"    --nopatch         don't create a patched LocalSettings.php\n" .
		"    --hotpatch        patched LocalSettings.php directly (creates a backup)\n" .
		"SOURCE: specifies the package source directly. If given, the repository is ignored.\n" . 
		"        The source my be a local file (tgz or zip) or directory, the URL of a\n" .
		"        remote file (tgz or zip), or a SVN path.\n" 
                );
}

$repository = InstallerRepository::makeRepository( $repos );

if ( isset( $options['list'] ) ) {
	$repository->printListing();
	exit(0);
}

$name = $args[0];

$src = isset( $args[1] ) ? $args[1] : $repository->getResource( $name );

#TODO: detect $source mismatching $name !!

$mode = EXTINST_WRITEPATCH;
if ( isset( $options['nopatch'] ) || @$wgExtensionInstallerNoPatch ) { $mode = EXTINST_NOPATCH; }
else if ( isset( $options['hotpatch'] ) || @$wgExtensionInstallerHotPatch ) { $mode = EXTINST_HOTPATCH; }

if ( !file_exists( "$tgt/LocalSettings.php" ) ) {
	die("can't find $tgt/LocalSettings.php\n");
}

if ( $mode == EXTINST_HOTPATCH && !is_writable( "$tgt/LocalSettings.php" ) ) {
	die("can't write to  $tgt/LocalSettings.php\n");
}

if ( !file_exists( "$tgt/extensions" ) ) {
	die("can't find $tgt/extensions\n");
}

if ( !is_writable( "$tgt/extensions" ) ) {
	die("can't write to  $tgt/extensions\n");
}

$installer = new ExtensionInstaller( $name, $src, $tgt );

$installer->note( "Installing extension {$installer->name} from {$installer->source->path} to {$installer->dir}" );

print "\n";
print "\tTHIS TOOL IS EXPERIMENTAL!\n";
print "\tEXPECT THE UNEXPECTED!\n";
print "\n";

if ( !$installer->confirm("continue") ) die("aborted\n");

$ok = $installer->fetchExtension();

if ( $ok ) $ok = $installer->patchLocalSettings( $mode );

if ( $ok ) $ok = $installer->printNotices();

if ( $ok ) $installer->note( "$name extension installed." );