summaryrefslogtreecommitdiffstats
path: root/CGI.pl
blob: d6dca3a39138911104b5c060c232b4131d0ac341 (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
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
731
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
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
# -*- Mode: perl; indent-tabs-mode: nil -*-
#
# The contents of this file are subject to the Mozilla Public
# License Version 1.1 (the "License"); you may not use this file
# except in compliance with the License. You may obtain a copy of
# the License at http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
# implied. See the License for the specific language governing
# rights and limitations under the License.
#
# The Original Code is the Bugzilla Bug Tracking System.
#
# The Initial Developer of the Original Code is Netscape Communications
# Corporation. Portions created by Netscape are
# Copyright (C) 1998 Netscape Communications Corporation. All
# Rights Reserved.
#
# Contributor(s): Terry Weissman <terry@mozilla.org>
#                 Dan Mosedale <dmose@mozilla.org>
#                 Joe Robins <jmrobins@tgix.com>
#                 Dave Miller <justdave@syndicomm.com>
#                 Christopher Aillon <christopher@aillon.com>
#                 Gervase Markham <gerv@gerv.net>
#                 Christian Reis <kiko@async.com.br>

# Contains some global routines used throughout the CGI scripts of Bugzilla.

use strict;
use lib ".";

# use Carp;                       # for confess

use Bugzilla::Util;
use Bugzilla::Config;

# commented out the following snippet of code. this tosses errors into the
# CGI if you are perl 5.6, and doesn't if you have perl 5.003. 
# We want to check for the existence of the LDAP modules here.
# eval "use Mozilla::LDAP::Conn";
# my $have_ldap = $@ ? 0 : 1;

# Shut up misguided -w warnings about "used only once".  For some reason,
# "use vars" chokes on me when I try it here.

sub CGI_pl_sillyness {
    my $zz;
    $zz = %::dontchange;
}

use CGI::Carp qw(fatalsToBrowser);

require 'globals.pl';

use vars qw($template $vars);

# If Bugzilla is shut down, do not go any further, just display a message
# to the user about the downtime.  (do)editparams.cgi is exempted from
# this message, of course, since it needs to be available in order for
# the administrator to open Bugzilla back up.
if (Param("shutdownhtml") && $0 !~ m:[\\/](do)?editparams.cgi$:) {
    $::vars->{'message'} = "shutdown";
    
    # Return the appropriate HTTP response headers.
    print "Content-Type: text/html\n\n";
    
    # Generate and return an HTML message about the downtime.
    $::template->process("global/message.html.tmpl", $::vars)
      || ThrowTemplateError($::template->error());
    exit;
}

# Implementations of several of the below were blatently stolen from CGI.pm,
# by Lincoln D. Stein.

# Get rid of all the %xx encoding and the like from the given URL.
sub url_decode {
    my ($todecode) = (@_);
    $todecode =~ tr/+/ /;       # pluses become spaces
    $todecode =~ s/%([0-9a-fA-F]{2})/pack("c",hex($1))/ge;
    return $todecode;
}

# check and see if a given field exists, is non-empty, and is set to a 
# legal value.  assume a browser bug and abort appropriately if not.
# if $legalsRef is not passed, just check to make sure the value exists and 
# is non-NULL
sub CheckFormField (\%$;\@) {
    my ($formRef,                # a reference to the form to check (a hash)
        $fieldname,              # the fieldname to check
        $legalsRef               # (optional) ref to a list of legal values 
       ) = @_;

    if ( !defined $formRef->{$fieldname} ||
         trim($formRef->{$fieldname}) eq "" ||
         (defined($legalsRef) && 
          lsearch($legalsRef, $formRef->{$fieldname})<0) ){

        SendSQL("SELECT description FROM fielddefs WHERE name=" . SqlQuote($fieldname));
        my $result = FetchOneColumn();
        if ($result) {
            $vars->{'field'} = $result;
        }
        else {
            $vars->{'field'} = $fieldname;
        }
        
        ThrowCodeError("illegal_field", undef, "abort");
      }
}

# check and see if a given field is defined, and abort if not
sub CheckFormFieldDefined (\%$) {
    my ($formRef,                # a reference to the form to check (a hash)
        $fieldname,              # the fieldname to check
       ) = @_;

    if (!defined $formRef->{$fieldname}) {
        $vars->{'field'} = $fieldname;  
        ThrowCodeError("undefined_field");
    }
}

sub BugAliasToID {
    # Queries the database for the bug with a given alias, and returns
    # the ID of the bug if it exists or the undefined value if it doesn't.
    
    my ($alias) = @_;
    
    return undef unless Param("usebugaliases");
    
    PushGlobalSQLState();
    SendSQL("SELECT bug_id FROM bugs WHERE alias = " . SqlQuote($alias));
    my $id = FetchOneColumn();
    PopGlobalSQLState();
    
    return $id;
}

sub ValidateBugID {
    # Validates and verifies a bug ID, making sure the number is a 
    # positive integer, that it represents an existing bug in the
    # database, and that the user is authorized to access that bug.
    # We detaint the number here, too

    my ($id, $skip_authorization) = @_;
    
    # Get rid of white-space around the ID.
    $id = trim($id);
    
    # If the ID isn't a number, it might be an alias, so try to convert it.
    my $alias = $id;
    if (!detaint_natural($id)) {
        $id = BugAliasToID($alias);
        $id || ThrowUserError("invalid_bug_id_or_alias", {'bug_id' => $id});
    }
    
    # Modify the calling code's original variable to contain the trimmed,
    # converted-from-alias ID.
    $_[0] = $id;
    
    # First check that the bug exists
    SendSQL("SELECT bug_id FROM bugs WHERE bug_id = $id");

    FetchOneColumn()
      || ThrowUserError("invalid_bug_id_non_existent", {'bug_id' => $id});

    return if $skip_authorization;
    
    return if CanSeeBug($id, $::userid);

    # The user did not pass any of the authorization tests, which means they
    # are not authorized to see the bug.  Display an error and stop execution.
    # The error the user sees depends on whether or not they are logged in
    # (i.e. $::userid contains the user's positive integer ID).
    if ($::userid) {
        ThrowUserError("bug_access_denied", {'bug_id' => $id});
    } else {
        ThrowUserError("bug_access_query", {'bug_id' => $id});
    }
}

sub ValidateComment {
    # Make sure a comment is not too large (greater than 64K).
    
    my ($comment) = @_;
    
    if (defined($comment) && length($comment) > 65535) {
        ThrowUserError("comment_too_long");
    }
}

sub PasswordForLogin {
    my ($login) = (@_);
    SendSQL("select cryptpassword from profiles where login_name = " .
            SqlQuote($login));
    my $result = FetchOneColumn();
    if (!defined $result) {
        $result = "";
    }
    return $result;
}

sub get_netaddr {
    my ($ipaddr) = @_;

    # Check for a valid IPv4 addr which we know how to parse
    if ($ipaddr !~ /^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/) {
        return undef;
    }

    my $addr = unpack("N", pack("CCCC", split(/\./, $ipaddr)));

    my $maskbits = Param('loginnetmask');

    $addr >>= (32-$maskbits);
    $addr <<= (32-$maskbits);
    return join(".", unpack("CCCC", pack("N", $addr)));
}

sub quietly_check_login() {
    $::disabledreason = '';
    my $userid = 0;
    my $ipaddr = $ENV{'REMOTE_ADDR'};
    my $netaddr = get_netaddr($ipaddr);
    if (defined $::COOKIE{"Bugzilla_login"} &&
        defined $::COOKIE{"Bugzilla_logincookie"}) {
        my $query = "SELECT profiles.userid," .
                " profiles.login_name, " .
                " profiles.disabledtext " .
                " FROM profiles, logincookies WHERE logincookies.cookie = " .
                SqlQuote($::COOKIE{"Bugzilla_logincookie"}) .
                " AND profiles.userid = logincookies.userid AND" .
                " profiles.login_name = " .
                SqlQuote($::COOKIE{"Bugzilla_login"}) .
                " AND (logincookies.ipaddr = " .
                SqlQuote($ipaddr);
        if (defined $netaddr) {
            $query .= " OR logincookies.ipaddr = " . SqlQuote($netaddr);
        }
        $query .= ")";
        SendSQL($query);

        my @row;
        if (MoreSQLData()) {
            ($userid, my $loginname, my $disabledtext) = FetchSQLData();
            if ($userid > 0) {
                if ($disabledtext eq '') {
                    $::COOKIE{"Bugzilla_login"} = $loginname; # Makes sure case
                                                              # is in
                                                              # canonical form.
                    # We've just verified that this is ok
                    detaint_natural($::COOKIE{"Bugzilla_logincookie"});
                } else {
                    $::disabledreason = $disabledtext;
                    $userid = 0;
                }
            }
        }
    }
    # if 'who' is passed in, verify that it's a good value
    if ($::FORM{'who'}) {
        my $whoid = DBname_to_id($::FORM{'who'});
        delete $::FORM{'who'} unless $whoid;
    }
    if (!$userid) {
        delete $::COOKIE{"Bugzilla_login"};
    }
                    
    $::userid = $userid;
    ConfirmGroup($userid);
    $vars->{'user'} = GetUserInfo($::userid);
    return $userid;
}

# Populate a hash with information about this user. 
sub GetUserInfo {
    my ($userid) = (@_);
    my %user;
    my @queries;
    my %groups;
    
    # No info if not logged in
    return \%user if ($userid == 0);
    
    $user{'login'} = $::COOKIE{"Bugzilla_login"};
    $user{'userid'} = $userid;
    
    SendSQL("SELECT mybugslink, realname " . 
            "FROM profiles WHERE userid = $userid");
    ($user{'showmybugslink'}, $user{'realname'}) = FetchSQLData();

    SendSQL("SELECT name, query, linkinfooter FROM namedqueries " .
            "WHERE userid = $userid");
    while (MoreSQLData()) {
        my %query;
        ($query{'name'}, $query{'query'}, $query{'linkinfooter'}) = 
                                                                 FetchSQLData();
        push(@queries, \%query);    
    }

    $user{'queries'} = \@queries;

    $user{'canblessany'} = UserCanBlessAnything();

    SendSQL("SELECT name FROM groups, user_group_map " .
            "WHERE groups.id = user_group_map.group_id " .
            "AND user_id = $userid " .
            "AND NOT isbless");
    while (MoreSQLData()) {
        my ($name) = FetchSQLData();    
        $groups{$name} = 1;
    }

    $user{'groups'} = \%groups;

    return \%user;
}

sub CheckEmailSyntax {
    my ($addr) = (@_);
    my $match = Param('emailregexp');
    if ($addr !~ /$match/ || $addr =~ /[\\\(\)<>&,;:"\[\] \t\r\n]/) {
        $vars->{'addr'} = $addr;
        ThrowUserError("illegal_email_address");
    }
}

sub MailPassword {
    my ($login, $password) = (@_);
    my $urlbase = Param("urlbase");
    my $template = Param("passwordmail");
    my $msg = PerformSubsts($template,
                            {"mailaddress" => $login . Param('emailsuffix'),
                             "login" => $login,
                             "password" => $password});

    open SENDMAIL, "|/usr/lib/sendmail -t -i";
    print SENDMAIL $msg;
    close SENDMAIL;
}

sub confirm_login {
    my ($nexturl) = (@_);

# Uncommenting the next line can help debugging...
#    print "Content-type: text/plain\n\n";

    # I'm going to reorganize some of this stuff a bit.  Since we're adding
    # a second possible validation method (LDAP), we need to move some of this
    # to a later section.  -Joe Robins, 8/3/00
    my $enteredlogin = "";
    my $realcryptpwd = "";
    my $userid;

    # If the form contains Bugzilla login and password fields, use Bugzilla's 
    # built-in authentication to authenticate the user (otherwise use LDAP below).
    if (defined $::FORM{"Bugzilla_login"} && defined $::FORM{"Bugzilla_password"}) {
        # Make sure the user's login name is a valid email address.
        $enteredlogin = $::FORM{"Bugzilla_login"};
        CheckEmailSyntax($enteredlogin);

        # Retrieve the user's ID and crypted password from the database.
        SendSQL("SELECT userid, cryptpassword FROM profiles 
                 WHERE login_name = " . SqlQuote($enteredlogin));
        ($userid, $realcryptpwd) = FetchSQLData();

        # Make sure the user exists or throw an error (but do not admit it was a username
        # error to make it harder for a cracker to find account names by brute force).
        $userid || ThrowUserError("invalid_username_or_password");

        # If this is a new user, generate a password, insert a record
        # into the database, and email their password to them.
        if ( defined $::FORM{"PleaseMailAPassword"} && !$userid ) {
            # Ensure the new login is valid
            if(!ValidateNewUser($enteredlogin)) {
                ThrowUserError("account_exists");
            }

            my $password = InsertNewUser($enteredlogin, "");
            MailPassword($enteredlogin, $password);
            
            $vars->{'login'} = $enteredlogin;
            
            print "Content-Type: text/html\n\n";
            $template->process("account/created.html.tmpl", $vars)
              || ThrowTemplateError($template->error());                 
        }

        # Otherwise, authenticate the user.
        else {
            # Get the salt from the user's crypted password.
            my $salt = $realcryptpwd;

            # Using the salt, crypt the password the user entered.
            my $enteredCryptedPassword = crypt( $::FORM{"Bugzilla_password"} , $salt );

            # Make sure the passwords match or throw an error.
            ($enteredCryptedPassword eq $realcryptpwd)
              || ThrowUserError("invalid_username_or_password");

            # If the user has successfully logged in, delete any password tokens
            # lying around in the system for them.
            use Token;
            my $token = Token::HasPasswordToken($userid);
            while ( $token ) {
                Token::Cancel($token, "user logged in");
                $token = Token::HasPasswordToken($userid);
            }
        }

     } elsif (Param("useLDAP") &&
              defined $::FORM{"LDAP_login"} &&
              defined $::FORM{"LDAP_password"}) {
       # If we're using LDAP for login, we've got an entirely different
       # set of things to check.

# see comment at top of file near eval
       # First, if we don't have the LDAP modules available to us, we can't
       # do this.
#       if(!$have_ldap) {
#         print "Content-type: text/html\n\n";
#         PutHeader("LDAP not enabled");
#         print "The necessary modules for LDAP login are not installed on ";
#         print "this machine.  Please send mail to ".Param("maintainer");
#         print " and notify him of this problem.\n";
#         PutFooter();
#         exit;
#       }

       # Next, we need to bind anonymously to the LDAP server.  This is
       # because we need to get the Distinguished Name of the user trying
       # to log in.  Some servers (such as iPlanet) allow you to have unique
       # uids spread out over a subtree of an area (such as "People"), so
       # just appending the Base DN to the uid isn't sufficient to get the
       # user's DN.  For servers which don't work this way, there will still
       # be no harm done.
       my $LDAPserver = Param("LDAPserver");
       if ($LDAPserver eq "") {
         print "Content-type: text/html\n\n";
         PutHeader("LDAP server not defined");
         print "The LDAP server for authentication has not been defined.  ";
         print "Please contact ".Param("maintainer")." ";
         print "and notify him of this problem.\n";
         PutFooter();
         exit;
       }

       my $LDAPport = "389";  #default LDAP port
       if($LDAPserver =~ /:/) {
         ($LDAPserver, $LDAPport) = split(":",$LDAPserver);
       }
       my $LDAPconn = new Mozilla::LDAP::Conn($LDAPserver,$LDAPport);
       if(!$LDAPconn) {
         print "Content-type: text/html\n\n";
         PutHeader("Unable to connect to LDAP server");
         print "I was unable to connect to the LDAP server for user ";
         print "authentication.  Please contact ".Param("maintainer");
         print " and notify him of this problem.\n";
         PutFooter();
         exit;
       }

       # if no password was provided, then fail the authentication
       # while it may be valid to not have an LDAP password, when you
       # bind without a password (regardless of the binddn value), you
       # will get an anonymous bind.  I do not know of a way to determine
       # whether a bind is anonymous or not without making changes to the
       # LDAP access control settings
       if ( ! $::FORM{"LDAP_password"} ) {
         print "Content-type: text/html\n\n";
         PutHeader("Login Failed");
         print "You did not provide a password.\n";
         print "Please click <b>Back</b> and try again.\n";
         PutFooter();
         exit;
       }

       # We've got our anonymous bind;  let's look up this user.
       my $dnEntry = $LDAPconn->search(Param("LDAPBaseDN"),"subtree","uid=".$::FORM{"LDAP_login"});
       if(!$dnEntry) {
         print "Content-type: text/html\n\n";
         PutHeader("Login Failed");
         print "The username or password you entered is not valid.\n";
         print "Please click <b>Back</b> and try again.\n";
         PutFooter();
         exit;
       }

       # Now we get the DN from this search.  Once we've got that, we're
       # done with the anonymous bind, so we close it.
       my $userDN = $dnEntry->getDN;
       $LDAPconn->close;

       # Now we attempt to bind as the specified user.
       $LDAPconn = new Mozilla::LDAP::Conn($LDAPserver,$LDAPport,$userDN,$::FORM{"LDAP_password"});
       if(!$LDAPconn) {
         print "Content-type: text/html\n\n";
         PutHeader("Login Failed");
         print "The username or password you entered is not valid.\n";
         print "Please click <b>Back</b> and try again.\n";
         PutFooter();
         exit;
       }

       # And now we're going to repeat the search, so that we can get the
       # mail attribute for this user.
       my $userEntry = $LDAPconn->search(Param("LDAPBaseDN"),"subtree","uid=".$::FORM{"LDAP_login"});
       if(!$userEntry->exists(Param("LDAPmailattribute"))) {
         print "Content-type: text/html\n\n";
         PutHeader("LDAP authentication error");
         print "I was unable to retrieve the ".Param("LDAPmailattribute");
         print " attribute from the LDAP server.  Please contact ";
         print Param("maintainer")." and notify him of this error.\n";
         PutFooter();
         exit;
       }

       # Mozilla::LDAP::Entry->getValues returns an array for the attribute
       # requested, even if there's only one entry.
       $enteredlogin = ($userEntry->getValues(Param("LDAPmailattribute")))[0];

       # We're going to need the cryptpwd for this user from the database
       # so that we can set the cookie below, even though we're not going
       # to use it for authentication.
       $realcryptpwd = PasswordForLogin($enteredlogin);

       # If we don't get a result, then we've got a user who isn't in
       # Bugzilla's database yet, so we've got to add them.
       if($realcryptpwd eq "") {
         # We'll want the user's name for this.
         my $userRealName = ($userEntry->getValues("displayName"))[0];
         if($userRealName eq "") {
           $userRealName = ($userEntry->getValues("cn"))[0];
         }
         InsertNewUser($enteredlogin, $userRealName);
         $realcryptpwd = PasswordForLogin($enteredlogin);
       }
     } # end LDAP authentication

     # And now, if we've logged in via either method, then we need to set
     # the cookies.
     if($enteredlogin ne "") {
       $::COOKIE{"Bugzilla_login"} = $enteredlogin;
       my $ipaddr = $ENV{'REMOTE_ADDR'};

       # Unless we're restricting the login, or restricting would have no
       # effect, loosen the IP which we record in the table
       unless ($::FORM{'Bugzilla_restrictlogin'} ||
               Param('loginnetmask') == 32) {
           $ipaddr = get_netaddr($ipaddr);
           $ipaddr = $ENV{'REMOTE_ADDR'} unless defined $ipaddr;
       }
       SendSQL("insert into logincookies (userid,ipaddr) values (@{[DBNameToIdAndCheck($enteredlogin)]}, @{[SqlQuote($ipaddr)]})");
       SendSQL("select LAST_INSERT_ID()");
       my $logincookie = FetchOneColumn();

       $::COOKIE{"Bugzilla_logincookie"} = $logincookie;
       my $cookiepath = Param("cookiepath");
       print "Set-Cookie: Bugzilla_login=$enteredlogin ; path=$cookiepath; expires=Sun, 30-Jun-2029 00:00:00 GMT\n";
       print "Set-Cookie: Bugzilla_logincookie=$logincookie ; path=$cookiepath; expires=Sun, 30-Jun-2029 00:00:00 GMT\n";
    }

    $userid = quietly_check_login();

    if (!$userid) {
        if ($::disabledreason) {
            my $cookiepath = Param("cookiepath");
            print "Set-Cookie: Bugzilla_login= ; path=$cookiepath; expires=Sun, 30-Jun-80 00:00:00 GMT
Set-Cookie: Bugzilla_logincookie= ; path=$cookiepath; expires=Sun, 30-Jun-80 00:00:00 GMT
Content-type: text/html

";
            $vars->{'disabled_reason'} = $::disabledreason;
            ThrowUserError("account_disabled");
        }
        
        if (!defined $nexturl || $nexturl eq "") {
            # Sets nexturl to be argv0, stripping everything up to and
            # including the last slash (or backslash on Windows).
            $0 =~ m:([^/\\]*)$:;
            $nexturl = $1;
        }
        
        $vars->{'target'} = $nexturl;
        $vars->{'form'} = \%::FORM;
        $vars->{'mform'} = \%::MFORM;
        
        print "Content-type: text/html\n\n";
        $template->process("account/login.html.tmpl", $vars)
          || ThrowTemplateError($template->error());
                
        # This seems like as good as time as any to get rid of old
        # crufty junk in the logincookies table.  Get rid of any entry
        # that hasn't been used in a month.
        if ($::dbwritesallowed) {
            SendSQL("DELETE FROM logincookies " .
                    "WHERE TO_DAYS(NOW()) - TO_DAYS(lastused) > 30");
        }

        exit;
    }

    # Update the timestamp on our logincookie, so it'll keep on working.
    if ($::dbwritesallowed) {
        SendSQL("UPDATE logincookies SET lastused = null " .
                "WHERE cookie = $::COOKIE{'Bugzilla_logincookie'}");
    }
    ConfirmGroup($userid);
    return $userid;
}

sub PutHeader {
    ($vars->{'title'}, $vars->{'h1'}, $vars->{'h2'}) = (@_);
     
    $::template->process("global/header.html.tmpl", $::vars)
      || ThrowTemplateError($::template->error());
    $vars->{'header_done'} = 1;
}

sub PutFooter {
    $::template->process("global/footer.html.tmpl", $::vars)
      || ThrowTemplateError($::template->error());
}

###############################################################################
# Error handling
#
# If you are doing incremental output, set $vars->{'header_done'} once you've
# done the header.
#
# You can call Throw*Error with extra template variables in one pass by using
# the $extra_vars hash reference parameter:
# ThrowUserError("some_tag", { bug_id => $bug_id, size => 127 });
###############################################################################

# For "this shouldn't happen"-type places in the code.
# The contents of $extra_vars get printed out in the template - useful for
# debugging info.
sub ThrowCodeError {
  ($vars->{'error'}, my $extra_vars, my $unlock_tables) = (@_);

  SendSQL("UNLOCK TABLES") if $unlock_tables;
  
  # Copy the extra_vars into the vars hash 
  foreach my $var (keys %$extra_vars) {
      $vars->{$var} = $extra_vars->{$var};
  }
  
  # We may one day log something to file here also.
  $vars->{'variables'} = $extra_vars;
  
  print "Content-type: text/html\n\n" if !$vars->{'header_done'};
  $template->process("global/code-error.html.tmpl", $vars)
    || ThrowTemplateError($template->error());
    
  exit;
}

# For errors made by the user.
sub ThrowUserError {
  ($vars->{'error'}, my $extra_vars, my $unlock_tables) = (@_);

  SendSQL("UNLOCK TABLES") if $unlock_tables;
 
  # Copy the extra_vars into the vars hash 
  foreach my $var (keys %$extra_vars) {
      $vars->{$var} = $extra_vars->{$var};
  }
  
  print "Content-type: text/html\n\n" if !$vars->{'header_done'};
  $template->process("global/user-error.html.tmpl", $vars)
    || ThrowTemplateError($template->error());
    
  exit;
}

# This function should only be called if a template->process() fails.
# It tries another template first, because often one template being
# broken or missing doesn't mean that they all are. But it falls back on
# a print statement.
# The Content-Type will already have been printed.
sub ThrowTemplateError {
    ($vars->{'template_error_msg'}) = (@_);
    $vars->{'error'} = "template_error";
    
    # Try a template first; but if this one fails too, fall back
    # on plain old print statements.
    if (!$template->process("global/code-error.html.tmpl", $vars)) {
        my $maintainer = Param('maintainer');
        my $error = html_quote($vars->{'template_error_msg'});
        my $error2 = html_quote($template->error());
        print <<END;
        <tt>
          <p>
            Bugzilla has suffered an internal error. Please save this page and 
            send it to $maintainer with details of what you were doing at the 
            time this message appeared.
          </p>
          <script type="text/javascript"> <!--
            document.write("<p>URL: " + document.location + "</p>");
          // -->
          </script>
          <p>Template->process() failed twice.<br>
          First error: $error<br>
          Second error: $error2</p>
        </tt>
END
    }
    
    exit;  
}

sub CheckIfVotedConfirmed {
    my ($id, $who) = (@_);
    SendSQL("SELECT bugs.votes, bugs.bug_status, products.votestoconfirm, " .
            "       bugs.everconfirmed " .
            "FROM bugs, products " .
            "WHERE bugs.bug_id = $id AND products.id = bugs.product_id");
    my ($votes, $status, $votestoconfirm, $everconfirmed) = (FetchSQLData());
    if ($votes >= $votestoconfirm && $status eq $::unconfirmedstate) {
        SendSQL("UPDATE bugs SET bug_status = 'NEW', everconfirmed = 1 " .
                "WHERE bug_id = $id");
        my $fieldid = GetFieldID("bug_status");
        SendSQL("INSERT INTO bugs_activity " .
                "(bug_id,who,bug_when,fieldid,removed,added) VALUES " .
                "($id,$who,now(),$fieldid,'$::unconfirmedstate','NEW')");
        if (!$everconfirmed) {
            $fieldid = GetFieldID("everconfirmed");
            SendSQL("INSERT INTO bugs_activity " .
                    "(bug_id,who,bug_when,fieldid,removed,added) VALUES " .
                    "($id,$who,now(),$fieldid,'0','1')");
        }
        
        AppendComment($id, DBID_to_name($who),
                      "*** This bug has been confirmed by popular vote. ***", 0);
                      
        $vars->{'type'} = "votes";
        $vars->{'id'} = $id;
        $vars->{'mail'} = "";
        open(PMAIL, "-|") or exec('./processmail', $id);
        $vars->{'mail'} .= $_ while <PMAIL>;
        close(PMAIL);
        
        $template->process("bug/process/results.html.tmpl", $vars)
          || ThrowTemplateError($template->error());
    }

}
sub LogActivityEntry {
    my ($i,$col,$removed,$added,$whoid,$timestamp) = @_;
    # in the case of CCs, deps, and keywords, there's a possibility that someone    # might try to add or remove a lot of them at once, which might take more
    # space than the activity table allows.  We'll solve this by splitting it
    # into multiple entries if it's too long.
    while ($removed || $added) {
        my ($removestr, $addstr) = ($removed, $added);
        if (length($removestr) > 254) {
            my $commaposition = FindWrapPoint($removed, 254);
            $removestr = substr($removed,0,$commaposition);
            $removed = substr($removed,$commaposition);
            $removed =~ s/^[,\s]+//; # remove any comma or space
        } else {
            $removed = ""; # no more entries
        }
        if (length($addstr) > 254) {
            my $commaposition = FindWrapPoint($added, 254);
            $addstr = substr($added,0,$commaposition);
            $added = substr($added,$commaposition);
            $added =~ s/^[,\s]+//; # remove any comma or space
        } else {
            $added = ""; # no more entries
        }
        $addstr = SqlQuote($addstr);
        $removestr = SqlQuote($removestr);
        my $fieldid = GetFieldID($col);
        SendSQL("INSERT INTO bugs_activity " .
                "(bug_id,who,bug_when,fieldid,removed,added) VALUES " .
                "($i,$whoid," . SqlQuote($timestamp) . ",$fieldid,$removestr,$addstr)");
    }
}

sub GetBugActivity {
    my ($id, $starttime) = (@_);
    my $datepart = "";

    die "Invalid id: $id" unless $id=~/^\s*\d+\s*$/;

    if (defined $starttime) {
        $datepart = "and bugs_activity.bug_when > " . SqlQuote($starttime);
    }
    
    my $query = "
        SELECT IFNULL(fielddefs.description, bugs_activity.fieldid),
                fielddefs.name,
                bugs_activity.attach_id,
                bugs_activity.bug_when,
                bugs_activity.removed, bugs_activity.added,
                profiles.login_name
        FROM bugs_activity LEFT JOIN fielddefs ON 
                                     bugs_activity.fieldid = fielddefs.fieldid,
             profiles
        WHERE bugs_activity.bug_id = $id $datepart
              AND profiles.userid = bugs_activity.who
        ORDER BY bugs_activity.bug_when";

    SendSQL($query);
    
    my @operations;
    my $operation = {};
    my $changes = [];
    my $incomplete_data = 0;
    
    while (my ($field, $fieldname, $attachid, $when, $removed, $added, $who) 
                                                               = FetchSQLData())
    {
        my %change;
        my $activity_visible = 1;
        
        # check if the user should see this field's activity
        if ($fieldname eq 'remaining_time' ||
            $fieldname eq 'estimated_time' ||
            $fieldname eq 'work_time') {

            if (!UserInGroup(Param('timetrackinggroup'))) {
                $activity_visible = 0;
            } else {
                $activity_visible = 1;
            }
        } else {
            $activity_visible = 1;
        }
                
        if ($activity_visible) {
            # This gets replaced with a hyperlink in the template.
            $field =~ s/^Attachment// if $attachid;

            # Check for the results of an old Bugzilla data corruption bug
            $incomplete_data = 1 if ($added =~ /^\?/ || $removed =~ /^\?/);
        
            # An operation, done by 'who' at time 'when', has a number of
            # 'changes' associated with it.
            # If this is the start of a new operation, store the data from the
            # previous one, and set up the new one.
            if ($operation->{'who'} 
                && ($who ne $operation->{'who'} 
                    || $when ne $operation->{'when'})) 
            {
                $operation->{'changes'} = $changes;
                push (@operations, $operation);
            
                # Create new empty anonymous data structures.
                $operation = {};
                $changes = [];
            }  
        
            $operation->{'who'} = $who;
            $operation->{'when'} = $when;            
        
            $change{'field'} = $field;
            $change{'fieldname'} = $fieldname;
            $change{'attachid'} = $attachid;
            $change{'removed'} = $removed;
            $change{'added'} = $added;
            push (@$changes, \%change);
        }   
    }
    
    if ($operation->{'who'}) {
        $operation->{'changes'} = $changes;
        push (@operations, $operation);
    }
    
    return(\@operations, $incomplete_data);
}

############# Live code below here (that is, not subroutine defs) #############

use Bugzilla::CGI();

# XXX - mod_perl, this needs to move into all the scripts individually
# Once we do that, look into setting DISABLE_UPLOADS, and overriding
# on a per-script basis
$::cgi = new Bugzilla::CGI();

# Set up stuff for compatibility with the old CGI.pl code
# This code will be removed as soon as possible, in favour of
# using the CGI.pm stuff directly

# XXX - mod_perl - reset these between runs

foreach my $name ($::cgi->param()) {
    my @val = $::cgi->param($name);
    $::FORM{$name} = join('', @val);
    $::MFORM{$name} = \@val;
}

$::buffer = $::cgi->query_string();

foreach my $name ($::cgi->cookie()) {
    $::COOKIE{$name} = $::cgi->cookie($name);
}

1;