acctfuncs.inc 21.2 KB
Newer Older
1
<?php
2
3
4
5
include_once("acctfuncs_po.inc");

# Display the standard Account form, pass in default values if any
#
eric's avatar
eric committed
6
7
8
function display_account_form($UTYPE,$A,$U="",$T="",$S="",
			$E="",$P="",$C="",$R="",$L="",$I="",$N="",$UID=0) {
	# UTYPE: what user type the form is being displayed for
9
10
11
12
13
14
15
16
17
18
19
	# A: what "form" name to use
	# U: value to display for username
	# T: value to display for account type
	# S: value to display for account suspended
	# E: value to display for email address
	# P: password value
	# C: confirm password value
	# R: value to display for RealName
	# L: value to display for Language preference
	# I: value to display for IRC nick
	# N: new package notify value
eric's avatar
eric committed
20
	# UID: Users.ID value in case form is used for editing
21
22
23
24
25

	global $SUPPORTED_LANGS;

	print "<form action='/account.php' method='post'>\n";
	print "<input type='hidden' name='Action' value='".$A."'>\n";
eric's avatar
eric committed
26
27
28
	if ($UID) {
		print "<input type='hidden' name='ID' value='".$UID."'>\n";
	}
29
30
31
32
33
34
35
36
37
38
	print "<center>\n";
	print "<table border='0' cellpadding='0' cellspacing='0' width='80%'>\n";
	print "<tr><td colspan='2'>&nbsp;</td></tr>\n";

	print "<tr>";
	print "<td align='left'>".__("Username").":</td>";
	print "<td align='left'><input type='text' size='30' maxlength='64'";
	print " name='U' value='".$U."'> (".__("required").")</td>";
	print "</tr>\n";

eric's avatar
eric committed
39
	if ($UTYPE == "Trusted User" || $UTYPE == "Developer") {
40
41
42
43
44
		# only TUs or Devs can promote/demote/suspend a user
		#
		print "<tr>";
		print "<td align='left'>".__("Account Type").":</td>";
		print "<td align='left'><select name=T>\n";
eric's avatar
eric committed
45
46
47
48
49
50
51
		print "<option value='1'";
		$T == "User" ? print " selected>" : print ">";
		print	__("Normal user")."\n";
		print "<option value='2'";
		$T == "Trusted User" ? print " selected>" : print ">";
		print __("Trusted user")."\n";
		if ($UTYPE == "Developer") {
52
53
			# only developers can make another account a developer
			#
eric's avatar
eric committed
54
55
56
			print "<option value='3'";
			$T == "Developer" ? print " selected>" : print ">";
			print __("Developer")."\n";
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
		}
		print "</select></td>";
		print "</tr>\n";

		print "<tr>";
		print "<td align='left'>".__("Account Suspended").":</td>";
		print "<td align='left'><input type='checkbox' name='S'";
		if ($S) {
			print " checked>";
		} else {
			print ">";
		}
		print "</tr>\n";
	}

	print "<tr>";
	print "<td align='left'>".__("Email Address").":</td>";
	print "<td align='left'><input type='text' size='30' maxlength='64'";
	print " name='E' value='".$E."'> (".__("required").")</td>";
	print "</tr>\n";

	print "<tr>";
	print "<td align='left'>".__("Password").":</td>";
	print "<td align='left'><input type='password' size='30' maxlength='32'";
eric's avatar
eric committed
81
	print " name='P' value='".$P."'>";
82
	if ($A != "UpdateAccount") {
eric's avatar
eric committed
83
84
85
		print "	(".__("required").")";
	}
	print "</td></tr>\n";
86
87
88
89

	print "<tr>";
	print "<td align='left'>".__("Re-type password").":</td>";
	print "<td align='left'><input type='password' size='30' maxlength='32'";
eric's avatar
eric committed
90
	print " name='C' value='".$C."'>";
91
	if ($A != "UpdateAccount") {
eric's avatar
eric committed
92
93
94
		print "	(".__("required").")";
	}
	print "</td></tr>\n";
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110

	print "<tr>";
	print "<td align='left'>".__("Real Name").":</td>";
	print "<td align='left'><input type='text' size='30' maxlength='32'";
	print " name='R' value='".$R."'></td>";
	print "</tr>\n";

	print "<tr>";
	print "<td align='left'>".__("IRC Nick").":</td>";
	print "<td align='left'><input type='text' size='30' maxlength='32'";
	print " name='I' value='".$I."'></td>";
	print "</tr>\n";

	print "<tr>";
	print "<td align='left'>".__("Language").":</td>";
	print "<td align='left'><select name=L>\n";
111
112

	reset($SUPPORTED_LANGS);
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
	while (list($code, $lang) = each($SUPPORTED_LANGS)) {
		if ($L == $code) {
			print "<option value=".$code." selected> ".$lang."\n";
		} else {
			print "<option value=".$code."> ".$lang."\n";
		}
	}
	print "</select></td>";
	print "</tr>\n";

	print "<tr>";
	print "<td align='left'>".__("New Package Notify").":</td>";
	print "<td align='left'><input type='checkbox' name='N'";
	if ($N) {
		print " checked>";
	} else {
		print ">";
	}
	print "</tr>\n";

	print "<tr><td colspan='2'>&nbsp;</td></tr>\n";
	print "<tr>";
	print "<td>&nbsp;</td>";
	print "<td align='left'>";
137

eric's avatar
eric committed
138
	if ($A == "UpdateAccount") {
eric's avatar
eric committed
139
140
		print "<input type='submit' class='button'";
	 	print "	value='".__("Update")."'> &nbsp; ";
141
	} else {
eric's avatar
eric committed
142
143
		print "<input type='submit' class='button'";
		print " value='".__("Create")."'> &nbsp; ";
144
	}
145
	print "<input type='reset' class='button' value='".__("Reset")."'>";
146
147
148
149
150
151
152
153
154
155
156
157
	print "</td>";
	print "</tr>\n";

	print "</table>\n";
	print "</center>\n";
	print "</form>\n";
	return;
} # function display_account_form()


# process form input from a new/edit account form
#
eric's avatar
eric committed
158
function process_account_form($UTYPE,$TYPE,$A,$U="",$T="",$S="",$E="",
159
			$P="",$C="",$R="",$L="",$I="",$N="",$UID=0) {
eric's avatar
eric committed
160
	# UTYPE: The user's account type
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
	# TYPE: either "edit" or "new"
	# A: what parent "form" name to use
	# U: value to display for username
	# T: value to display for account type
	# S: value to display for account suspended
	# E: value to display for email address
	# P: password value
	# C: confirm password value
	# R: value to display for RealName
	# L: value to display for Language preference
	# I: value to display for IRC nick
	# N: new package notify value
	# UID: database Users.ID value

	# error check and process request for a new/modified account
	#
	global $SUPPORTED_LANGS;

179
180
181
182
183
	if(isset($_COOKIE['AURSID']))
		$editor_user = 	uid_from_sid($_COOKIE['AURSID']);
	else
		$editor_user = null;

184
185
	$dbh = db_connect();
	$error = "";
186
	if (empty($E) || empty($U)) {
187
188
		$error = __("Missing a required field.");
	}
189
	
190
191
192
	if ($TYPE == "new") {
		# they need password fields for this type of action
		#
193
		if (empty($P) || empty($C)) {
194
195
196
197
198
199
200
			$error = __("Missing a required field.");
		}
	} else {
		if (!$UID) {
			$error = __("Missing User ID");
		}
	}
201
202
203
204
205
206
207
208
209

  if (!$error && !valid_username($U) && !user_is_privileged($editor_user))
    $error = __("The username is invalid.") . "<ul>\n"
      ."<li>" . __("It must be "  . USERNAME_MIN_LEN . "-" . USERNAME_MAX_LEN
      . " characters long") . "</li>"
      . "<li>" . __("start and end with a letter or number") . "</li>"
			. "<li>" . __("can contain only one period, underscore or hyphen.")
			. "</li>\n</ul>";

210
211
212
	if (!$error && $P && $C && ($P != $C)) {
		$error = __("Password fields do not match.");
	}
213
214
215
216
	if (!$error && $P != '' && !good_passwd($P))
		$error = __("Your password must be at least " . PASSWD_MIN_LEN 
			. " characters.");

217
218
219
	if (!$error && !valid_email($E)) {
		$error = __("The email address is invalid.");
	}
eric's avatar
eric committed
220
221
222
	if ($UTYPE == "Trusted User" && $T == 3) {
		$error = __("A Trusted User cannot assign Developer status.");
	}
223
224
225
226
227
228
229
230
	if (!$error && !array_key_exists($L, $SUPPORTED_LANGS)) {
		$error = __("Language is not currently supported.");
	}
	if (!$error) {
		# check to see if this username is available
		# NOTE: a race condition exists here if we care...
		#
		$q = "SELECT COUNT(*) AS CNT FROM Users ";
231
		$q.= "WHERE Username = '".mysql_real_escape_string($U)."'";
eric's avatar
eric committed
232
233
234
		if ($TYPE == "edit") {
			$q.= " AND ID != ".intval($UID);
		}
235
236
237
238
239
240
241
242
243
244
245
246
247
248
		$result = db_query($q, $dbh);
		if ($result) {
			$row = mysql_fetch_array($result);
			if ($row[0]) {
				$error = __("The username, %h%s%h, is already in use.",
						array("<b>", $U, "</b>"));
			}
		}
	}
	if (!$error) {
		# check to see if this email address is available
		# NOTE: a race condition exists here if we care...
		#
		$q = "SELECT COUNT(*) AS CNT FROM Users ";
249
		$q.= "WHERE Email = '".mysql_real_escape_string($E)."'";
eric's avatar
eric committed
250
251
252
		if ($TYPE == "edit") {
			$q.= " AND ID != ".intval($UID);
		}
253
254
255
256
257
258
259
260
261
262
263
		$result = db_query($q, $dbh);
		if ($result) {
			$row = mysql_fetch_array($result);
			if ($row[0]) {
				$error = __("The address, %h%s%h, is already in use.",
						array("<b>", $E, "</b>"));
			}
		}
	}
	if ($error) {
		print "<span class='error'>".$error."</span><br/>\n";
eric's avatar
eric committed
264
		display_account_form($UTYPE, $A, $U, $T, $S, $E, "", "",
265
266
267
268
269
				$R, $L, $I, $N, $UID);
	} else {
		if ($TYPE == "new") {
			# no errors, go ahead and create the unprivileged user
			#
jchu's avatar
jchu committed
270
271
272
			
			#md5hash the password
			$P = md5($P);
273
274
			$q = "INSERT INTO Users (AccountTypeID, Suspended, Username, Email, ";
			$q.= "Passwd, RealName, LangPreference, IRCNick, NewPkgNotify) ";
275
276
277
278
279
280
			$q.= "VALUES (1, 0, '".mysql_real_escape_string($U)."'";
			$q.= ", '".mysql_real_escape_string($E)."'";
			$q.= ", '".mysql_real_escape_string($P)."'";
			$q.= ", '".mysql_real_escape_string($R)."'";
			$q.= ", '".mysql_real_escape_string($L)."'";
			$q.= ", '".mysql_real_escape_string($I)."'";
281
282
283
284
285
286
287
288
289
			if ($N) {
				$q.= ", 1)";
			} else {
				$q.= ", 0)";
			}
			$result = db_query($q, $dbh);
			if (!$result) {
				print __("Error trying to create account, %h%s%h: %s.",
						array("<b>", $U, "</b>", mysql_error($dbh)));
290
			} else {
291
292
293
294
295
296
297
298
299
300
301
302
				# account created/modified, tell them so.
				#
				print __("The account, %h%s%h, has been successfully created.",
						array("<b>", $U, "</b>"));
				print "<p>\n";
				print __("Click on the Home link above to login.");
				print "</p>\n";
			}

		} else {
			# no errors, go ahead and modify the user account
			#
jchu's avatar
jchu committed
303
304

			#md5 hash the password
305
			$q = "UPDATE Users SET ";
306
			$q.= "Username = '".mysql_real_escape_string($U)."'";
eric's avatar
eric committed
307
308
309
310
311
312
313
314
			if ($T) {
				$q.= ", AccountTypeID = ".intval($T);
			}
			if ($S) {
				$q.= ", Suspended = 1";
			} else {
				$q.= ", Suspended = 0";
			}
315
			$q.= ", Email = '".mysql_real_escape_string($E)."'";
eric's avatar
eric committed
316
			if ($P) {
317
				$q.= ", Passwd = '".mysql_real_escape_string(md5($P))."'";
eric's avatar
eric committed
318
			}
319
320
321
			$q.= ", RealName = '".mysql_real_escape_string($R)."'";
			$q.= ", LangPreference = '".mysql_real_escape_string($L)."'";
			$q.= ", IRCNick = '".mysql_real_escape_string($I)."'";
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
			$q.= ", NewPkgNotify = ";
			if ($N) {
				$q.= "1 ";
			} else {
				$q.= "0 ";
			}
			$q.= "WHERE ID = ".intval($UID);
			$result = db_query($q, $dbh);
			if (!$result) {
				print __("Error trying to modify account, %h%s%h: %s.",
						array("<b>", $U, "</b>", mysql_error($dbh)));
			} else {
				print __("The account, %h%s%h, has been successfully modified.",
						array("<b>", $U, "</b>"));
			}
		}
	}
	return;
}

# search existing accounts
#
function search_accounts_form() {
345
	include("search_accounts_form.php");
346
347
348
349
350
351
	return;
}


# search results page
#
eric's avatar
eric committed
352
function search_results_page($UTYPE,$O=0,$SB="",$U="",$T="",
353
		$S="",$E="",$R="",$I="") {
eric's avatar
eric committed
354
	# UTYPE: what account type the user belongs to
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
	# O: what row offset we're at
	# SB: how to sort the results
	# U: value to display for username
	# T: value to display for account type
	# S: value to display for account suspended
	# E: value to display for email address
	# R: value to display for RealName
	# I: value to display for IRC nick

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

	$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) {
393
		$q.= "AND Username LIKE '%".mysql_real_escape_string($U)."%' ";
394
395
396
		$search_vars[] = "U";
	}
	if ($E) {
397
		$q.= "AND Email LIKE '%".mysql_real_escape_string($E)."%' ";
398
399
400
		$search_vars[] = "E";
	}
	if ($R) {
401
		$q.= "AND RealName LIKE '%".mysql_real_escape_string($R)."%' ";
402
403
404
		$search_vars[] = "R";
	}
	if ($I) {
405
		$q.= "AND IRCNick LIKE '%".mysql_real_escape_string($I)."%' ";
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
		$search_vars[] = "I";
	}
	switch ($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;
		case 'v':
			$q.= "ORDER BY LastVoted, Username ";
			break;
		default:
			$q.= "ORDER BY Username, AccountTypeID ";
			break;
	}
	$search_vars[] = "SB";
	$q.= "LIMIT ". $OFFSET . ", " . $HITS_PER_PAGE;
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
	$result = db_query($q, $dbh);
	if (!$result) {
		print __("No results matched your search criteria.");
	} else {
		$num_rows = mysql_num_rows($result);
		if ($num_rows) {
			print "<center>\n";
			print "<table border='0' cellpadding='0'";
			print " cellspacing='0' width='90%'>\n";
			print "<tr>";
			print "<td colspan='2'>";
			print "<table border='0' cellpadding='0'";
			print " cellspacing='0' width='100%'>\n";
			print "<th class='header'>";
			print "<span class='f2'>".__("Username")."</span></th>";
			print "<th class='header'>";
			print "<span class='f2'>".__("Type")."</span></th>";
			print "<th class='header'>";
			print "<span class='f2'>".__("Status")."</span></th>";
			print "<th class='header'>";
			print "<span class='f2'>".__("Real Name")."</span></th>";
			print "<th class='header'>";
			print "<span class='f2'>".__("IRC Nick")."</span></th>";
			print "<th class='header'>";
			print "<span class='f2'>".__("Last Voted")."</span></th>";
			print "<th class='header'>";
			print "<span class='f2'>".__("Edit Account")."</span></th>";
			print "</tr>\n";
			$i = 0;
			while ($row = mysql_fetch_assoc($result)) {
				if ($i % 2) {
					$c = "data1";
				} else {
					$c = "data2";
				}
				print "<tr>";
				print "<td class='".$c."'>";
simo's avatar
simo committed
465
				print "<span class='f5'><a href='/packages.php?SeB=m&K=".$row["Username"]."'>".$row["Username"]."</a></span></td>";
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
				print "<td class='".$c."'>";
				print "<span class='f5'>".$row["AccountType"];
				print "</span></td>";
				print "<td class='".$c."'><span class='f5'>";
				if ($row["Suspended"]) {
					print __("Suspended");
				} else {
					print __("Active");
				}
				print "</span></td>";
				print "<td class='".$c."'><span class='f5'>";
				$row["RealName"] ? print $row["RealName"] : print "&nbsp;";
				print "</span></td>";
				print "<td class='".$c."'><span class='f5'>";
				$row["IRCNick"] ? print $row["IRCNick"] : print "&nbsp;";
				print "</span></td>";
				print "<td class='".$c."'><span class='f5'>";
				$row["LastVoted"]
						? print date("Ymd", $row["LastVoted"])
						: print __("Never");
				print "</span></td>";
				print "<td class='".$c."'><span class='f5'>";
eric's avatar
eric committed
488
489
490
491
492
493
494
495
496
				if ($UTYPE == "Trusted User" && $row["AccountType"] == "Developer") {
					# TUs can't edit devs
					#
					print "&nbsp;</span></td>";
				} else {
					$edit_url = "/account.php?Action=DisplayAccount&ID=".$row["ID"];
					print "<a href='".$edit_url . "'>";
					print "Edit</a></span></td>";
				}
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
				print "</tr>\n";
				$i++;
			}
			print "</table>\n";
			print "</td></tr>\n";

			print "<tr>";
			print "<td align='left'>";
			print "<form action='/account.php' method='post'>\n";
			print "<input type='hidden' name='Action' value='SearchAccounts'>\n";
			print "<input type='hidden' name='O'";
			print " value='".($OFFSET-$HITS_PER_PAGE)."'>\n";
			reset($search_vars);
			while (list($k, $ind) = each($search_vars)) {
				print "<input type='hidden' name='".$ind."'";
				print " value='".${$ind}."'>\n";
			}
eric's avatar
eric committed
514
515
			print "<input type='submit' class='button'";
			print " value='&lt;-- ".__("Less")."'>";
516
517
518
519
520
521
522
523
524
525
526
527
			print "</form>\n";
			print "</td>";
			print "<td align='right'>";
			print "<form action='/account.php' method='post'>\n";
			print "<input type='hidden' name='Action' value='SearchAccounts'>\n";
			print "<input type='hidden' name='O'";
			print " value='".($OFFSET+$HITS_PER_PAGE)."'>\n";
			reset($search_vars);
			while (list($k, $ind) = each($search_vars)) {
				print "<input type='hidden' name='".$ind."'";
				print " value='".${$ind}."'>\n";
			}
eric's avatar
eric committed
528
529
			print "<input type='submit' class='button'";
			print " value='".__("More")." --&gt;'>";
530
531
532
533
534
535
536
537
538
539
540
541
542
543
			print "</form>\n";
			print "</td>";
			print "</tr>\n";
			print "</table>\n";
			print "</center>\n";
		} else {
			print "<center>\n";
			print __("No more results to display.");
			print "</center>\n";
		}
	}
	return;
}

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
# Display non-editable account info
#
function display_account_info($U="",$T="",
			$E="",$R="",$I="") {
	# U: value to display for username
	# T: value to display for account type
	# E: value to display for email address
	# R: value to display for RealName
	# I: value to display for IRC nick

	global $SUPPORTED_LANGS;

	print "<center>\n";
	print "<table border='0' cellpadding='0' cellspacing='0' width='33%'>\n";
	print "  <tr>\n";
	print "    <td colspan='2'>&nbsp;</td>\n";
	print "  </tr>\n";

	print "  <tr>\n";
	print "    <td align='left'>".__("Username").":</td>\n";
	print "    <td align='left'>".$U."</td>\n";
	print "  </tr>\n";
	
	print "  <tr>\n";
	print "    <td align='left'>".__("Account Type").":</td>\n";
	print "    <td align='left'>";
	if ($T == "User") {
		print __("User");
	} elseif ($T == "Trusted User") {
		print __("Trusted User");
	}	elseif ($T == "Developer") {
		print __("Developer");
	}
	print "</td>\n";
	
	print "  <tr>\n";
	print "    <td align='left'>".__("Email Address").":</td>\n";
	print "    <td align='left'><a href='mailto:".$E."'>".$E."</a></td>\n";
	print "  </tr>\n";

	print "  <tr>\n";
	print "    <td align='left'>".__("Real Name").":</td>\n";
	print "    <td align='left'>".$R."</td>\n";
	print "  </tr>\n";

	print "  <tr>\n";
	print "    <td align='left'>".__("IRC Nick").":</td>\n";
	print "    <td align='left'>".$I."</td>\n";
	print "  </tr>\n";

594
595
596
597
	print "  <tr>\n";
	print "    <td colspan='2'><a href='/packages.php?K=".$U."&SeB=m'>".__("View this user's packages")."</a></td>\n";
	print "  </tr>\n";

598
599
600
601
602
	print "</table>\n";
	print "</center>\n";
	return;
}

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
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
/*
 * Returns SID (Session ID) and error (error message) in an array
 * SID of 0 means login failed.
 */
function try_login() {
	$login_error = ""; 
	$new_sid = "";
	$userID = null;

	if ( isset($_REQUEST['user']) || isset($_REQUEST['passwd']) ) {


		$userID = valid_user($_REQUEST['user']);

		if ( user_suspended( $userID ) ) {
			$login_error = "Account Suspended.";
		}
		elseif ( $userID && isset($_REQUEST['passwd'])
		  && valid_passwd($userID, $_REQUEST['passwd']) ) {

			$logged_in = 0;
			$num_tries = 0;

			# Account looks good.  Generate a SID and store it.
			#

			$dbh = db_connect();
			while (!$logged_in && $num_tries < 5) {
				$new_sid = new_sid();
				$q = "INSERT INTO Sessions (UsersID, SessionID, LastUpdateTS)"
				  ." VALUES ( $userID, '" . $new_sid . "', UNIX_TIMESTAMP())";
				$result = db_query($q, $dbh);
				# Query will fail if $new_sid is not unique
				#
				if ($result) {
					$logged_in = 1;
					break;
				}
				$num_tries++;
		        }
			if ($logged_in) {
				# set our SID cookie

				setcookie("AURSID", $new_sid, 0, "/");
#				header("Location: /index.php");
				header("Location: " . $_SERVER['PHP_SELF']);
				$login_error = "";

			}
			else {
				$login_error = "Error trying to generate session id.";
			}
		}
		else {
			$login_error = "Bad username or password.";
		}
	}
	return array('SID' => $new_sid, 'error' => $login_error);
}

/*
 * Only checks if the name itself is valid
 * Longer or equal to USERNAME_MIN_LEN
 * Shorter or equal to USERNAME_MAX_LEN
 * Starts and ends with a letter or number
 * Contains at most ONE dot, hyphen, or underscore
 * Returns the username if it is valid
 * Returns nothing if it isn't valid
 */
function valid_username( $user )
{

	#Is it non-empty?
	if (!empty($user)) {
		
		#Is username at not too short or too long?
		if ( strlen($user) >= USERNAME_MIN_LEN &&
		  strlen($user) <= USERNAME_MAX_LEN ) {
			
			$user = strtolower($user);
			#Does username:
			# start and end with a letter or number
			# contain only letters and numbers,
			#  and at most has one dash, period, or underscore
			if ( preg_match("/^[a-z0-9]+[.\-_]?[a-z0-9]+$/", $user) ) {
				#All is good return the username
				return $user;
			}
		}
	}
	
	return;
}

/*
 * Checks if the username is valid and if it exists in the database
 * Returns the username ID or nothing
 */
function valid_user( $user )
{
	/*	if ( $user = valid_username($user) ) { */
	if ( $user ) {
		$dbh = db_connect();
		$q = "SELECT ID FROM Users WHERE Username = '"
			. mysql_real_escape_string($user). "'";

		$result = mysql_fetch_row(db_query($q, $dbh));
		#Is the username in the database? 
		if ($result[0]) {
			return $result[0];
		}
	}
	return;
}

function good_passwd( $passwd )
{
	if ( strlen($passwd) >= PASSWD_MIN_LEN ) {
		return true;
	}
	return false;
}

/* Verifies that the password is correct for the userID specified.
 * Returns true or false
 */
function valid_passwd( $userID, $passwd )
{
731
	if ( strlen($passwd) > 0 ) {
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
		$dbh = db_connect();
		$q = "SELECT ID FROM Users".
		  " WHERE ID = '$userID'" .
		  " AND Passwd = '" . md5($passwd) . "'";

		$result = mysql_fetch_row(db_query($q, $dbh));
		if ($result[0]) {
			#is it the right password?
			return true;
		}
	}
	return false;
}

/*
 * Is the user account suspended?
 */
function user_suspended( $id )
{
	$dbh = db_connect();
	$q = "SELECT Suspended FROM Users WHERE ID = '$id'";
	$result = mysql_fetch_row(db_query($q, $dbh));
	if ($result[0] == 1 ) {
		return true;
	}
	return false;
}

/*
 * This should be expanded to return something
 * TODO: Handle orphaning of user's packages
 */
function user_delete( $id )
{
	$dbh = db_connect();
	$q = "DELETE FROM Users WHERE ID = '$id'";
	$result = mysql_fetch_row(db_query($q, $dbh));
	return;
}

/*
 * A different way of determining a user's privileges
 * rather than account_from_sid()
 */
function user_is_privileged( $id )
{
	$dbh = db_connect();
	$q = "SELECT AccountTypeID FROM Users WHERE ID = '$id'";
	$result = mysql_fetch_row(db_query($q, $dbh));
	if( $result[0] > 1)
		return $result[0];
	return 0;

}

787
788
# vim: ts=2 sw=2 noet ft=php
?>