acctfuncs.inc.php 30.3 KB
Newer Older
1
<?php
2

3
4
5
6
7
8
9
/**
 * Determine if an HTTP request variable is set
 *
 * @param string $name The request variable to test for
 *
 * @return string Return the value of the request variable, otherwise blank
 */
Dan McGee's avatar
Dan McGee committed
10
11
12
13
14
15
16
function in_request($name) {
	if (isset($_REQUEST[$name])) {
		return $_REQUEST[$name];
	}
	return "";
}

17
18
19
20
21
22
23
/**
 * Format the PGP key fingerprint
 *
 * @param string $fingerprint An unformatted PGP key fingerprint
 *
 * @return string PGP fingerprint with spaces every 4 characters
 */
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
function html_format_pgp_fingerprint($fingerprint) {
	if (strlen($fingerprint) != 40 || !ctype_xdigit($fingerprint)) {
		return $fingerprint;
	}

	return htmlspecialchars(substr($fingerprint, 0, 4) . " " .
		substr($fingerprint, 4, 4) . " " .
		substr($fingerprint, 8, 4) . " " .
		substr($fingerprint, 12, 4) . " " .
		substr($fingerprint, 16, 4) . "  " .
		substr($fingerprint, 20, 4) . " " .
		substr($fingerprint, 24, 4) . " " .
		substr($fingerprint, 28, 4) . " " .
		substr($fingerprint, 32, 4) . " " .
		substr($fingerprint, 36, 4) . " ", ENT_QUOTES);
}

41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
/**
 * Loads the account editing form, with any values that are already saved
 *
 * @global array $SUPPORTED_LANGS Languages that are supported by the AUR
 * @param string $UTYPE User type of the account accessing the form
 * @param string $A Form to use, either UpdateAccount or NewAccount
 * @param string $U The username to display
 * @param string $T The account type of the displayed user
 * @param string $S Whether the displayed user has a suspended account
 * @param string $E The e-mail address of the displayed user
 * @param string $P The password value of the displayed user
 * @param string $C The confirmed password value of the displayed user
 * @param string $R The real name of the displayed user
 * @param string $L The language preference of the displayed user
 * @param string $I The IRC nickname of the displayed user
 * @param string $K The PGP key fingerprint of the displayed user
57
 * @param string $J The inactivity status of the displayed user
58
59
60
61
 * @param string $UID The user ID of the displayed user
 *
 * @return void
 */
eric's avatar
eric committed
62
function display_account_form($UTYPE,$A,$U="",$T="",$S="",
63
		$E="",$P="",$C="",$R="",$L="",$I="",$K="",$J="", $UID=0) {
64
65
	global $SUPPORTED_LANGS;

66
	include("account_edit_form.php");
67
	return;
68
}
69

70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
/**
 * Process information given to new/edit account form
 *
 * @global array $SUPPORTED_LANGS Languages that are supported by the AUR
 * @param string $UTYPE The account type of the user modifying the account
 * @param string $TYPE Either "edit" for editing or "new" for registering an account
 * @param string $A Form to use, either UpdateAccount or NewAccount
 * @param string $U The username for the account
 * @param string $T The account type for the user
 * @param string $S Whether or not the account is suspended
 * @param string $E The e-mail address for the user
 * @param string $P The password for the user
 * @param string $C The confirmed password for the user
 * @param string $R The real name of the user
 * @param string $L The language preference of the user
 * @param string $I The IRC nickname of the user
 * @param string $K The PGP fingerprint of the user
87
 * @param string $J The inactivity status of the user
88
89
90
91
 * @param string $UID The user ID of the modified account
 *
 * @return string|void Return void if successful, otherwise return error
 */
eric's avatar
eric committed
92
function process_account_form($UTYPE,$TYPE,$A,$U="",$T="",$S="",$E="",
93
			$P="",$C="",$R="",$L="",$I="",$K="",$J="",$UID=0) {
94
	global $SUPPORTED_LANGS, $AUR_LOCATION;
95

96
97
98
99
100
101
102
103
104
	$error = '';

	if (is_ipbanned()) {
		$error = __('Account registration has been disabled ' .
					'for your IP address, probably due ' .
					'to sustained spam attacks. Sorry for the ' .
					'inconvenience.');
	}

105
	$dbh = DB::connect();
106

107
	if(isset($_COOKIE['AURSID'])) {
108
		$editor_user = uid_from_sid($_COOKIE['AURSID']);
109
110
	}
	else {
111
		$editor_user = null;
112
	}
113
114

	if (empty($E) || empty($U)) {
115
116
		$error = __("Missing a required field.");
	}
117

118
119
	if ($TYPE != "new" && !$UID) {
		$error = __("Missing User ID");
120
	}
121

122
123
	if (!$error && !valid_username($U) && !user_is_privileged($editor_user)) {
		$error = __("The username is invalid.") . "<ul>\n"
124
			."<li>" . __("It must be between %s and %s characters long",
125
126
			USERNAME_MIN_LEN,  USERNAME_MAX_LEN )
			. "</li>"
127
			. "<li>" . __("Start and end with a letter or number") . "</li>"
128
			. "<li>" . __("Can contain only one period, underscore or hyphen.")
129
			. "</li>\n</ul>";
130
	}
131

132
133
134
	if (!$error && $P && $C && ($P != $C)) {
		$error = __("Password fields do not match.");
	}
135
	if (!$error && $P != '' && !good_passwd($P))
136
		$error = __("Your password must be at least %s characters.",PASSWD_MIN_LEN);
137

138
139
140
	if (!$error && !valid_email($E)) {
		$error = __("The email address is invalid.");
	}
141
142
143
144
145

	if (!$error && $K != '' && !valid_pgp_fingerprint($K)) {
		$error = __("The PGP key fingerprint is invalid.");
	}

146
147
	if (($UTYPE == "User" && $T > 1) || ($UTYPE == "Trusted User" && $T > 2)) {
		$error = __("Cannot increase account permissions.");
eric's avatar
eric committed
148
	}
149
150
151
152
	if (!$error && !array_key_exists($L, $SUPPORTED_LANGS)) {
		$error = __("Language is not currently supported.");
	}
	if (!$error) {
153
154
155
156
		/*
		 * Check whether the user name is available.
		 * TODO: Fix race condition.
		 */
157
		$q = "SELECT COUNT(*) AS CNT FROM Users ";
canyonknight's avatar
canyonknight committed
158
		$q.= "WHERE Username = " . $dbh->quote($U);
eric's avatar
eric committed
159
160
161
		if ($TYPE == "edit") {
			$q.= " AND ID != ".intval($UID);
		}
canyonknight's avatar
canyonknight committed
162
163
164
165
166
		$result = $dbh->query($q);
		$row = $result->fetch(PDO::FETCH_NUM);

		if ($row[0]) {
			$error = __("The username, %s%s%s, is already in use.",
Lukas Fleischer's avatar
Lukas Fleischer committed
167
				"<strong>", htmlspecialchars($U,ENT_QUOTES), "</strong>");
168
169
170
		}
	}
	if (!$error) {
171
172
173
174
		/*
		 * Check whether the e-mail address is available.
		 * TODO: Fix race condition.
		 */
175
		$q = "SELECT COUNT(*) AS CNT FROM Users ";
canyonknight's avatar
canyonknight committed
176
		$q.= "WHERE Email = " . $dbh->quote($E);
eric's avatar
eric committed
177
178
179
		if ($TYPE == "edit") {
			$q.= " AND ID != ".intval($UID);
		}
canyonknight's avatar
canyonknight committed
180
181
182
183
184
		$result = $dbh->query($q);
		$row = $result->fetch(PDO::FETCH_NUM);

		if ($row[0]) {
			$error = __("The address, %s%s%s, is already in use.",
Lukas Fleischer's avatar
Lukas Fleischer committed
185
					"<strong>", htmlspecialchars($E,ENT_QUOTES), "</strong>");
186
187
		}
	}
188

189
	if ($error) {
190
		print "<ul class='errorlist'><li>".$error."</li></ul>\n";
eric's avatar
eric committed
191
		display_account_form($UTYPE, $A, $U, $T, $S, $E, "", "",
192
				$R, $L, $I, $K, $J, $UID);
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
		return;
	}

	if ($TYPE == "new") {
		/* Create an unprivileged user. */
		$salt = generate_salt();
		if (empty($P)) {
			$send_resetkey = true;
			$email = $E;
		} else {
			$send_resetkey = false;
			$P = salted_hash($P, $salt);
		}
		$U = $dbh->quote($U);
		$E = $dbh->quote($E);
		$P = $dbh->quote($P);
		$salt = $dbh->quote($salt);
		$R = $dbh->quote($R);
		$L = $dbh->quote($L);
		$I = $dbh->quote($I);
		$K = $dbh->quote(str_replace(" ", "", $K));
		$q = "INSERT INTO Users (AccountTypeID, Suspended, ";
		$q.= "InactivityTS, Username, Email, Passwd, Salt, ";
		$q.= "RealName, LangPreference, IRCNick, PGPKey) ";
		$q.= "VALUES (1, 0, 0, $U, $E, $P, $salt, $R, $L, ";
		$q.= "$I, $K)";
		$result = $dbh->exec($q);
		if (!$result) {
			print __("Error trying to create account, %s%s%s.",
					"<strong>", htmlspecialchars($U,ENT_QUOTES), "</strong>");
			return;
		}

		print __("The account, %s%s%s, has been successfully created.",
				"<strong>", htmlspecialchars($U,ENT_QUOTES), "</strong>");
		print "<p>\n";

		if (!$send_resetkey) {
			print __("Click on the Login link above to use your account.");
			print "</p>\n";
			return;
		}

		$subject = 'Welcome to the Arch User Repository';
		$body = __('Welcome to %s! In order ' .
			'to set an initial password ' .
			'for your new account, ' .
			'please click the link ' .
			'below. If the link does ' .
			'not work try copying and ' .
			'pasting it into your ' .
			'browser.',
			$AUR_LOCATION);
		send_resetkey($email, $subject, $body);

		print __("A password reset key has been sent to your e-mail address.");
		print "</p>\n";
250
	} else {
251
252
253
254
255
256
257
258
259
260
261
262
		/* Modify an existing account. */
		$q = "SELECT InactivityTS FROM Users WHERE ";
		$q.= "ID = " . intval($UID);
		$result = $dbh->query($q);
		$row = $result->fetch(PDO::FETCH_NUM);
		if ($row[0] && $J) {
			$inactivity_ts = $row[0];
		} elseif ($J) {
			$inactivity_ts = time();
		} else {
			$inactivity_ts = 0;
		}
263

264
265
266
267
268
269
270
271
272
		$q = "UPDATE Users SET ";
		$q.= "Username = " . $dbh->quote($U);
		if ($T) {
			$q.= ", AccountTypeID = ".intval($T);
		}
		if ($S) {
			/* Ensure suspended users can't keep an active session */
			delete_user_sessions($UID);
			$q.= ", Suspended = 1";
273
		} else {
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
			$q.= ", Suspended = 0";
		}
		$q.= ", Email = " . $dbh->quote($E);
		if ($P) {
			$salt = generate_salt();
			$hash = salted_hash($P, $salt);
			$q .= ", Passwd = '$hash', Salt = '$salt'";
		}
		$q.= ", RealName = " . $dbh->quote($R);
		$q.= ", LangPreference = " . $dbh->quote($L);
		$q.= ", IRCNick = " . $dbh->quote($I);
		$q.= ", PGPKey = " . $dbh->quote(str_replace(" ", "", $K));
		$q.= ", InactivityTS = " . $inactivity_ts;
		$q.= " WHERE ID = ".intval($UID);
		$result = $dbh->exec($q);
		if (!$result) {
			print __("No changes were made to the account, %s%s%s.",
					"<strong>", htmlspecialchars($U,ENT_QUOTES), "</strong>");
		} else {
			print __("The account, %s%s%s, has been successfully modified.",
					"<strong>", htmlspecialchars($U,ENT_QUOTES), "</strong>");
295
296
297
298
		}
	}
}

299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
/**
 * Display the search results page
 *
 * @param string $UTYPE User type of the account accessing the form
 * @param string $O The offset for the results page
 * @param string $SB The column to sort the results page by
 * @param string $U The username search criteria
 * @param string $T The account type search criteria
 * @param string $S Whether the account is suspended search criteria
 * @param string $E The e-mail address search criteria
 * @param string $R The real name search criteria
 * @param string $I The IRC nickname search criteria
 * @param string $K The PGP key fingerprint search criteria
 *
 * @return void
 */
eric's avatar
eric committed
315
function search_results_page($UTYPE,$O=0,$SB="",$U="",$T="",
316
		$S="",$E="",$R="",$I="",$K="") {
317
318
319
320
321
322
323
324
325
326
327
328

	$HITS_PER_PAGE = 50;
	if ($O) {
		$OFFSET = intval($O);
	} else {
		$OFFSET = 0;
	}
	if ($OFFSET < 0) {
		$OFFSET = 0;
	}
	$search_vars = array();

329
	$dbh = DB::connect();
canyonknight's avatar
canyonknight committed
330

331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
	$q = "SELECT Users.*, AccountTypes.AccountType ";
	$q.= "FROM Users, AccountTypes ";
	$q.= "WHERE AccountTypes.ID = Users.AccountTypeID ";
	if ($T == "u") {
		$q.= "AND AccountTypes.ID = 1 ";
		$search_vars[] = "T";
	} elseif ($T == "t") {
		$q.= "AND AccountTypes.ID = 2 ";
		$search_vars[] = "T";
	} elseif ($T == "d") {
		$q.= "AND AccountTypes.ID = 3 ";
		$search_vars[] = "T";
	}
	if ($S) {
		$q.= "AND Users.Suspended = 1 ";
		$search_vars[] = "S";
	}
	if ($U) {
canyonknight's avatar
canyonknight committed
349
350
		$U = "%" . addcslashes($U, '%_') . "%";
		$q.= "AND Username LIKE " . $dbh->quote($U) . " ";
351
352
353
		$search_vars[] = "U";
	}
	if ($E) {
canyonknight's avatar
canyonknight committed
354
355
		$E = "%" . addcslashes($E, '%_') . "%";
		$q.= "AND Email LIKE " . $dbh->quote($E) . " ";
356
357
358
		$search_vars[] = "E";
	}
	if ($R) {
canyonknight's avatar
canyonknight committed
359
360
		$R = "%" . addcslashes($R, '%_') . "%";
		$q.= "AND RealName LIKE " . $dbh->quote($R) . " ";
361
362
363
		$search_vars[] = "R";
	}
	if ($I) {
canyonknight's avatar
canyonknight committed
364
365
		$I = "%" . addcslashes($I, '%_') . "%";
		$q.= "AND IRCNick LIKE " . $dbh->quote($I) . " ";
366
367
		$search_vars[] = "I";
	}
368
	if ($K) {
canyonknight's avatar
canyonknight committed
369
370
		$K = "%" . addcslashes(str_replace(" ", "", $K), '%_') . "%";
		$q.= "AND PGPKey LIKE " . $dbh->quote($K) . " ";
371
372
		$search_vars[] = "K";
	}
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
	switch ($SB) {
		case 't':
			$q.= "ORDER BY AccountTypeID, Username ";
			break;
		case 'r':
			$q.= "ORDER BY RealName, AccountTypeID ";
			break;
		case 'i':
			$q.= "ORDER BY IRCNick, AccountTypeID ";
			break;
		default:
			$q.= "ORDER BY Username, AccountTypeID ";
			break;
	}
	$search_vars[] = "SB";
388
	$q.= "LIMIT " . $HITS_PER_PAGE . " OFFSET " . $OFFSET;
389

390
	$dbh = DB::connect();
391

canyonknight's avatar
canyonknight committed
392
	$result = $dbh->query($q);
393

canyonknight's avatar
canyonknight committed
394
	while ($row = $result->fetch(PDO::FETCH_ASSOC)) {
395
396
397
		$userinfo[] = $row;
	}

398
	include("account_search_results.php");
399
400
401
	return;
}

402
403
404
405
406
407
408
/**
 * Attempt to login and generate a session
 *
 * @global int $MAX_SESSIONS_PER_USER Maximum sessions a single user may have open
 * @global int $PERSISTENT_COOKIE_TIMEOUT Time until cookie expires
 *
 * @return array Session ID for user, error message if applicable
409
 */
410
function try_login() {
411
	global $MAX_SESSIONS_PER_USER, $PERSISTENT_COOKIE_TIMEOUT;
412

Loui Chang's avatar
Loui Chang committed
413
	$login_error = "";
414
415
416
	$new_sid = "";
	$userID = null;

417
418
419
420
421
422
423
424
425
426
427
	if (!isset($_REQUEST['user']) && !isset($_REQUEST['passwd'])) {
		return array('SID' => '', 'error' => null);
	}

	if (is_ipbanned()) {
		$login_error = __('The login form is currently disabled ' .
						'for your IP address, probably due ' .
						'to sustained spam attacks. Sorry for the ' .
						'inconvenience.');
		return array('SID' => '', 'error' => $login_error);
	}
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
	$dbh = DB::connect();
	$userID = valid_user($_REQUEST['user']);

	if (user_suspended($userID)) {
		$login_error = __('Account suspended');
		return array('SID' => '', 'error' => $login_error);
	} elseif (passwd_is_empty($userID)) {
		$login_error = __('Your password has been reset. ' .
			'If you just created a new account, please ' .
			'use the link from the confirmation email ' .
			'to set an initial password. Otherwise, ' .
			'please request a reset key on the %s' .
			'Password Reset%s page.', '<a href="' .
			htmlspecialchars(get_uri('/passreset')) . '">',
			'</a>');
		return array('SID' => '', 'error' => $login_error);
	} elseif (!valid_passwd($userID, $_REQUEST['passwd'])) {
		$login_error = __("Bad username or password.");
		return array('SID' => '', 'error' => $login_error);
	}

	$logged_in = 0;
	$num_tries = 0;

	/* Generate a session ID and store it. */
	while (!$logged_in && $num_tries < 5) {
		if ($MAX_SESSIONS_PER_USER) {
			/*
			 * Delete all user sessions except the
			 * last ($MAX_SESSIONS_PER_USER - 1).
			 */
			$q = "DELETE s.* FROM Sessions s ";
			$q.= "LEFT JOIN (SELECT SessionID FROM Sessions ";
			$q.= "WHERE UsersId = " . $userID . " ";
			$q.= "ORDER BY LastUpdateTS DESC ";
			$q.= "LIMIT " . ($MAX_SESSIONS_PER_USER - 1) . ") q ";
			$q.= "ON s.SessionID = q.SessionID ";
			$q.= "WHERE s.UsersId = " . $userID . " ";
			$q.= "AND q.SessionID IS NULL;";
			$dbh->query($q);
469
		}
470
471
472
473
474
475
476
477
478
479

		$new_sid = new_sid();
		$q = "INSERT INTO Sessions (UsersID, SessionID, LastUpdateTS)"
		  ." VALUES (" . $userID . ", '" . $new_sid . "', UNIX_TIMESTAMP())";
		$result = $dbh->exec($q);

		/* Query will fail if $new_sid is not unique. */
		if ($result) {
			$logged_in = 1;
			break;
480
		}
481
482
483
484
485
486
487

		$num_tries++;
	}

	if (!$logged_in) {
		$login_error = __('An error occurred trying to generate a user session.');
		return array('SID' => $new_sid, 'error' => $login_error);
488
	}
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510

	$q = "UPDATE Users SET LastLogin = UNIX_TIMESTAMP(), ";
	$q.= "LastLoginIPAddress = " . $dbh->quote(ip2long($_SERVER['REMOTE_ADDR'])) . " ";
	$q.= "WHERE ID = '$userID'";
	$dbh->exec($q);

	/* Set the SID cookie. */
	if (isset($_POST['remember_me']) && $_POST['remember_me'] == "on") {
		/* Set cookies for 30 days. */
		$cookie_time = time() + $PERSISTENT_COOKIE_TIMEOUT;

		/* Set session for 30 days. */
		$q = "UPDATE Sessions SET LastUpdateTS = $cookie_time ";
		$q.= "WHERE SessionID = '$new_sid'";
		$dbh->exec($q);
	} else {
		$cookie_time = 0;
	}

	setcookie("AURSID", $new_sid, $cookie_time, "/", null, !empty($_SERVER['HTTPS']), true);
	header("Location: " . get_uri('/'));
	$login_error = "";
511
512
}

513
514
515
516
517
518
519
520
521
522
523
/**
 * Determine if the user is using a banned IP address
 *
 * @return bool True if IP address is banned, otherwise false
 */
function is_ipbanned() {
	$dbh = DB::connect();

	$q = "SELECT * FROM Bans WHERE IPAddress = " . $dbh->quote(ip2long($_SERVER['REMOTE_ADDR']));
	$result = $dbh->query($q);

524
	return ($result->fetchColumn() ? true : false);
525
526
}

527
528
529
530
531
/**
 * Validate a username against a collection of rules
 *
 * The username must be longer or equal to USERNAME_MIN_LEN. It must be shorter
 * or equal to USERNAME_MAX_LEN. It must start and end with either a letter or
532
533
 * a number. It can contain one period, hypen, or underscore. Returns boolean
 * of whether name is valid.
534
535
536
 *
 * @param string $user Username to validate
 *
537
 * @return bool True if username meets criteria, otherwise false
538
 */
539
function valid_username($user) {
540
541
542
	if (strlen($user) < USERNAME_MIN_LEN ||
	    strlen($user) > USERNAME_MAX_LEN) {
		return false;
543
	} else if (!preg_match("/^[a-z0-9]+[.\-_]?[a-z0-9]+$/i", $user)) {
544
		return false;
545
	}
546

547
	return true;
548
549
}

550
551
552
553
554
555
/**
 * Determine if a username exists in the database
 *
 * @param string $user Username to check in the database
 *
 * @return string|void Return user ID if in database, otherwise void
556
 */
557
function valid_user($user) {
558
559
560
	if (!$user) {
		return false;
	}
561

562
563
564
565
566
567
568
	$dbh = DB::connect();

	$q = "SELECT ID FROM Users WHERE ";
	$q.= "Username = " . $dbh->quote($user);
	$result = $dbh->query($q);
	if (!$result) {
		return null;
569
	}
570
571
572

	$row = $result->fetch(PDO::FETCH_NUM);
	return $row[0];
573
574
}

575
576
577
578
579
580
581
/**
 * Determine if a user already has a proposal open about themselves
 *
 * @param string $user Username to checkout for open proposal
 *
 * @return bool True if there is an open proposal about the user, otherwise false
 */
582
function open_user_proposals($user) {
583
	$dbh = DB::connect();
canyonknight's avatar
canyonknight committed
584
585
586
	$q = "SELECT * FROM TU_VoteInfo WHERE User = " . $dbh->quote($user) . " ";
	$q.= "AND End > UNIX_TIMESTAMP()";
	$result = $dbh->query($q);
587
588

	return ($result->fetchColumn() ? true : false);
canyonknight's avatar
canyonknight committed
589
590
}

591
592
593
594
595
596
597
598
599
600
/**
 * Add a new Trusted User proposal to the database
 *
 * @param string $agenda The agenda of the vote
 * @param string $user The use the vote is about
 * @param int $votelength The length of time for the vote to last
 * @param string $submitteruid The user ID of the individual who submitted the proposal
 *
 * @return void
 */
601
function add_tu_proposal($agenda, $user, $votelength, $quorum, $submitteruid) {
602
	$dbh = DB::connect();
canyonknight's avatar
canyonknight committed
603

604
605
606
607
608
	$q = "SELECT COUNT(*) FROM Users WHERE AccountTypeID = 2";
	$result = $dbh->query($q);
	$row = $result->fetch(PDO::FETCH_NUM);
	$active_tus = $row[0];

609
	$q = "INSERT INTO TU_VoteInfo (Agenda, User, Submitted, End, Quorum, ";
610
	$q.= "SubmitterID, ActiveTUs) VALUES ";
canyonknight's avatar
canyonknight committed
611
612
	$q.= "(" . $dbh->quote($agenda) . ", " . $dbh->quote($user) . ", ";
	$q.= "UNIX_TIMESTAMP(), UNIX_TIMESTAMP() + " . $dbh->quote($votelength);
613
614
	$q.= ", " . $dbh->quote($quorum) . ", " . $submitteruid . ", ";
	$q.= $active_tus . ")";
canyonknight's avatar
canyonknight committed
615
	$result = $dbh->exec($q);
canyonknight's avatar
canyonknight committed
616
617
}

618
619
620
621
622
623
624
625
/**
 * Add a reset key to the database for a specified user
 *
 * @param string $resetkey A password reset key to be stored in database
 * @param string $uid The user ID to store the reset key for
 *
 * @return void
 */
626
function create_resetkey($resetkey, $uid) {
627
	$dbh = DB::connect();
canyonknight's avatar
canyonknight committed
628
629
630
	$q = "UPDATE Users ";
	$q.= "SET ResetKey = '" . $resetkey . "' ";
	$q.= "WHERE ID = " . $uid;
canyonknight's avatar
canyonknight committed
631
	$dbh->exec($q);
canyonknight's avatar
canyonknight committed
632
633
}

634
635
636
637
/**
 * Send a reset key to a specific e-mail address
 *
 * @param string $email E-mail address of the user resetting their password
638
 * @param string $subject Subject of the email
639
640
641
642
 * @param string $body Body of the email
 *
 * @return void
 */
643
function send_resetkey($email, $subject, $body) {
644
645
646
	global $AUR_LOCATION;

	$uid = uid_from_email($email);
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
	if ($uid == null) {
		return;
	}

	/* We (ab)use new_sid() to get a random 32 characters long string. */
	$resetkey = new_sid();
	create_resetkey($resetkey, $uid);

	/* Send e-mail with confirmation link. */
	$body = wordwrap($body, 70);
	$body .=  "\n\n".
		  "{$AUR_LOCATION}/" . get_uri('/passreset/') . "?".
		  "resetkey={$resetkey}";
	$headers = "MIME-Version: 1.0\r\n" .
		   "Content-type: text/plain; charset=UTF-8\r\n" .
		   "Reply-to: noreply@aur.archlinux.org\r\n" .
		   "From: notify@aur.achlinux.org\r\n" .
		   "X-Mailer: PHP\r\n" .
		   "X-MimeOLE: Produced By AUR";
	@mail($email, $subject, $body, $headers);
667
668
}

669
670
671
672
673
674
675
676
677
678
/**
 * Change a user's password in the database if reset key and e-mail are correct
 *
 * @param string $hash New MD5 hash of a user's password
 * @param string $salt New salt for the user's password
 * @param string $resetkey Code e-mailed to a user to reset a password
 * @param string $email E-mail address of the user resetting their password
 *
 * @return string|void Redirect page if successful, otherwise return error message
 */
679
function password_reset($hash, $salt, $resetkey, $email) {
680
	$dbh = DB::connect();
canyonknight's avatar
canyonknight committed
681
682
683
684
685
	$q = "UPDATE Users ";
	$q.= "SET Passwd = '$hash', ";
	$q.= "Salt = '$salt', ";
	$q.= "ResetKey = '' ";
	$q.= "WHERE ResetKey != '' ";
canyonknight's avatar
canyonknight committed
686
687
688
	$q.= "AND ResetKey = " . $dbh->quote($resetkey) . " ";
	$q.= "AND Email = " . $dbh->quote($email);
	$result = $dbh->exec($q);
canyonknight's avatar
canyonknight committed
689

canyonknight's avatar
canyonknight committed
690
	if (!$result) {
canyonknight's avatar
canyonknight committed
691
692
693
		$error = __('Invalid e-mail and reset key combination.');
		return $error;
	} else {
694
		header('Location: ' . get_uri('/passreset/') . '?step=complete');
canyonknight's avatar
canyonknight committed
695
696
697
698
		exit();
	}
}

699
700
701
702
703
704
705
/**
 * Determine if the password is longer than the minimum length
 *
 * @param string $passwd The password to check
 *
 * @return bool True if longer than minimum length, otherwise false
 */
706
function good_passwd($passwd) {
707
708
709
710
711
712
	if ( strlen($passwd) >= PASSWD_MIN_LEN ) {
		return true;
	}
	return false;
}

713
714
715
716
717
718
719
/**
 * Determine if the password is correct and salt it if it hasn't been already
 *
 * @param string $userID The user ID to check the password against
 * @param string $passwd The password the visitor sent
 *
 * @return bool True if password was correct and properly salted, otherwise false
720
 */
721
function valid_passwd($userID, $passwd) {
722
	$dbh = DB::connect();
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
	if ($passwd == "") {
		return false;
	}

	/* Get salt for this user. */
	$salt = get_salt($userID);
	if ($salt) {
		$q = "SELECT ID FROM Users ";
		$q.= "WHERE ID = " . $userID . " ";
		$q.= "AND Passwd = " . $dbh->quote(salted_hash($passwd, $salt));
		$result = $dbh->query($q);
		if (!$result) {
			return false;
		}

		$row = $result->fetch(PDO::FETCH_NUM);
		return ($row[0] > 0);
	} else {
		/* Check password without using salt. */
		$q = "SELECT ID FROM Users ";
		$q.= "WHERE ID = " . $userID . " ";
		$q.= "AND Passwd = " . $dbh->quote(md5($passwd));
		$result = $dbh->query($q);
		if (!$result) {
			return false;
		}

		$row = $result->fetch(PDO::FETCH_NUM);
		if (!$row[0]) {
			return false;
753
		}
754
755
756
757
758
759
760
761
762

		/* Password correct, but salt it first! */
		if (!save_salt($userID, $passwd)) {
			trigger_error("Unable to salt user's password;" .
				" ID " . $userID, E_USER_WARNING);
			return false;
		}

		return true;
763
764
765
	}
}

766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
/**
 * Determine if a user's password is empty
 *
 * @param string $uid The user ID to check for an empty password
 *
 * @return bool True if the user's password is empty, otherwise false
 */
function passwd_is_empty($uid) {
	$dbh = DB::connect();

	$q = "SELECT * FROM Users WHERE ID = " . $dbh->quote($uid) . " ";
	$q .= "AND Passwd = " . $dbh->quote('');
	$result = $dbh->query($q);

	if ($result->fetchColumn()) {
		return true;
	} else {
		return false;
	}
}

787
788
789
790
791
792
/**
 * Determine if the PGP key fingerprint is valid (must be 40 hexadecimal digits)
 *
 * @param string $fingerprint PGP fingerprint to check if valid
 *
 * @return bool True if the fingerprint is 40 hexadecimal digits, otherwise false
793
 */
794
function valid_pgp_fingerprint($fingerprint) {
795
796
797
798
	$fingerprint = str_replace(" ", "", $fingerprint);
	return (strlen($fingerprint) == 40 && ctype_xdigit($fingerprint));
}

799
800
801
802
803
804
/**
 * Determine if the user account has been suspended
 *
 * @param string $id The ID of user to check if suspended
 *
 * @return bool True if the user is suspended, otherwise false
805
 */
806
function user_suspended($id) {
807
	$dbh = DB::connect();
elij's avatar
elij committed
808
809
810
	if (!$id) {
		return false;
	}
811
	$q = "SELECT Suspended FROM Users WHERE ID = " . $id;
canyonknight's avatar
canyonknight committed
812
	$result = $dbh->query($q);
813
	if ($result) {
canyonknight's avatar
canyonknight committed
814
		$row = $result->fetch(PDO::FETCH_NUM);
815
		if ($row[0]) {
816
817
			return true;
		}
818
819
820
821
	}
	return false;
}

822
823
824
825
826
827
/**
 * Delete a specified user account from the database
 *
 * @param int $id The user ID of the account to be deleted
 *
 * @return void
828
 */
829
function user_delete($id) {
830
	$dbh = DB::connect();
831
	$q = "DELETE FROM Users WHERE ID = " . $id;
canyonknight's avatar
canyonknight committed
832
	$dbh->query($q);
833
834
835
	return;
}

836
837
838
839
840
841
/**
 * Determine if a user is either a Trusted User or Developer
 *
 * @param string $id The ID of the user to check if privileged
 *
 * @return int|string Return  0 if un-privileged, "2" if Trusted User, "3" if Developer
842
 */
843
function user_is_privileged($id) {
844
	$dbh = DB::connect();
845
	$q = "SELECT AccountTypeID FROM Users WHERE ID = " . $id;
canyonknight's avatar
canyonknight committed
846
	$result = $dbh->query($q);
847
	if ($result) {
canyonknight's avatar
canyonknight committed
848
		$row = $result->fetch(PDO::FETCH_NUM);
849
850
		if($row[0] > 1) {
			return $row[0];
851
		}
852
	}
853
854
855
856
	return 0;

}

857
858
859
860
861
862
863
/**
 * Remove the session from the database on logout
 *
 * @param string $sid User's session ID
 *
 * @return void
 */
864
function delete_session_id($sid) {
865
	$dbh = DB::connect();
canyonknight's avatar
canyonknight committed
866

canyonknight's avatar
canyonknight committed
867
868
	$q = "DELETE FROM Sessions WHERE SessionID = " . $dbh->quote($sid);
	$dbh->query($q);
canyonknight's avatar
canyonknight committed
869
870
}

871
872
873
874
875
876
877
/**
 * Remove all sessions belonging to a particular user
 *
 * @param int $uid ID of user to remove all sessions for
 *
 * @return void
 */
878
function delete_user_sessions($uid) {
879
	$dbh = DB::connect();
880
881
882
883
884

	$q = "DELETE FROM Sessions WHERE UsersID = " . intval($uid);
	$dbh->exec($q);
}

885
886
887
888
889
890
891
/**
 * Remove sessions from the database that have exceed the timeout
 *
 * @global int $LOGIN_TIMEOUT Time until session expires
 *
 * @return void
 */
892
function clear_expired_sessions() {
893
894
	global $LOGIN_TIMEOUT;

895
	$dbh = DB::connect();
canyonknight's avatar
canyonknight committed
896

897
	$q = "DELETE FROM Sessions WHERE LastUpdateTS < (UNIX_TIMESTAMP() - $LOGIN_TIMEOUT)";
canyonknight's avatar
canyonknight committed
898
	$dbh->query($q);
899
900
901

	return;
}
902

903
904
905
906
907
908
909
910
/**
 * Get account details for a specific user
 *
 * @param string $uid The User ID of account to get information for
 * @param string $username The username of the account to get for
 *
 * @return array Account details for the specified user
 */
911
function account_details($uid, $username) {
912
	$dbh = DB::connect();
canyonknight's avatar
canyonknight committed
913
914
915
916
917
918
	$q = "SELECT Users.*, AccountTypes.AccountType ";
	$q.= "FROM Users, AccountTypes ";
	$q.= "WHERE AccountTypes.ID = Users.AccountTypeID ";
	if (!empty($uid)) {
		$q.= "AND Users.ID = ".intval($uid);
	} else {
canyonknight's avatar
canyonknight committed
919
		$q.= "AND Users.Username = " . $dbh->quote($username);
canyonknight's avatar
canyonknight committed
920
	}
canyonknight's avatar
canyonknight committed
921
	$result = $dbh->query($q);
canyonknight's avatar
canyonknight committed
922
923

	if ($result) {
canyonknight's avatar
canyonknight committed
924
		$row = $result->fetch(PDO::FETCH_ASSOC);
canyonknight's avatar
canyonknight committed
925
926
927
928
929
	}

	return $row;
}

930
931
932
933
934
935
936
937
/**
 * Determine if a user has already voted on a specific proposal
 *
 * @param string $voteid The ID of the Trusted User proposal
 * @param string $uid The ID to check if the user already voted
 *
 * @return bool True if the user has already voted, otherwise false
 */
938
function tu_voted($voteid, $uid) {
939
	$dbh = DB::connect();
940

canyonknight's avatar
canyonknight committed
941
942
943
944
	$q = "SELECT COUNT(*) FROM TU_Votes ";
	$q.= "WHERE VoteID = " . intval($voteid) . " AND UserID = " . intval($uid);
	$result = $dbh->query($q);
	if ($result->fetchColumn() > 0) {
945
946
947
948
949
950
951
		return true;
	}
	else {
		return false;
	}
}

952
953
954
955
956
957
958
/**
 * Get all current Trusted User proposals from the database
 *
 * @param string $order Ascending or descending order for the proposal listing
 *
 * @return array The details for all current Trusted User proposals
 */
959
function current_proposal_list($order) {
960
	$dbh = DB::connect();
961
962

	$q = "SELECT * FROM TU_VoteInfo WHERE End > " . time() . " ORDER BY Submitted " . $order;
canyonknight's avatar
canyonknight committed
963
	$result = $dbh->query($q);
964

965
	$details = array();
canyonknight's avatar
canyonknight committed
966
	while ($row = $result->fetch(PDO::FETCH_ASSOC)) {
967
968
969
970
971
972
		$details[] = $row;
	}

	return $details;
}

973
974
975
976
977
978
979
980
/**
 * Get a subset of all past Trusted User proposals from the database
 *
 * @param string $order Ascending or descending order for the proposal listing
 * @param string $lim The number of proposals to list with the offset
 *
 * @return array The details for the subset of past Trusted User proposals
 */
981
function past_proposal_list($order, $lim) {
982
	$dbh = DB::connect();
983
984

	$q = "SELECT * FROM TU_VoteInfo WHERE End < " . time() . " ORDER BY Submitted " . $order . $lim;
canyonknight's avatar
canyonknight committed
985
	$result = $dbh->query($q);
986

987
	$details = array();
canyonknight's avatar
canyonknight committed
988
	while ($row = $result->fetch(PDO::FETCH_ASSOC)) {
989
990
991
992
993
994
		$details[] = $row;
	}

	return $details;
}

Lukas Fleischer's avatar
Lukas Fleischer committed
995
996
997
998
999
1000
/**
 * Get the vote ID of the last vote of all Trusted Users
 *
 * @return array The vote ID of the last vote of each Trusted User
 */
function last_votes_list() {
For faster browsing, not all history is shown. View entire blame