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Add Last-Modified: header support to mbox download (closes: #456786)
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1 #!/usr/bin/perl -wT
2
3 use warnings;
4 use strict;
5
6 use POSIX qw(strftime);
7 use MIME::Parser;
8 use MIME::Decoder;
9 use IO::Scalar;
10 use IO::File;
11
12 use Debbugs::Config qw(:globals :text);
13
14 # for read_log_records
15 use Debbugs::Log qw(read_log_records);
16 use Debbugs::CGI qw(:url :html :util);
17 use Debbugs::CGI::Bugreport qw(:all);
18 use Debbugs::Common qw(buglog getmaintainers make_list);
19 use Debbugs::Packages qw(getpkgsrc);
20 use Debbugs::Status qw(splitpackages get_bug_status isstrongseverity);
21
22 use Scalar::Util qw(looks_like_number);
23
24 use Debbugs::Text qw(:templates);
25
26
27 use CGI::Simple;
28 my $q = new CGI::Simple;
29
30 my %param = cgi_parameters(query => $q,
31                            single => [qw(bug msg att boring terse),
32                                       qw(reverse mbox mime trim),
33                                       qw(mboxstat mboxmaint archive),
34                                       qw(repeatmerged)
35                                      ],
36                            default => {# msg       => '',
37                                        boring    => 'no',
38                                        terse     => 'no',
39                                        reverse   => 'no',
40                                        mbox      => 'no',
41                                        mime      => 'no',
42                                        mboxstat  => 'no',
43                                        mboxmaint => 'no',
44                                        archive   => 'no',
45                                        repeatmerged => 'yes',
46                                       },
47                           );
48 # This is craptacular.
49
50 my $ref = $param{bug} or quitcgi("No bug number");
51 $ref =~ /(\d+)/ or quitcgi("Invalid bug number");
52 $ref = $1;
53 my $short = "#$ref";
54 my ($msg) = $param{msg} =~ /^(\d+)$/ if exists $param{msg};
55 my ($att) = $param{att} =~ /^(\d+)$/ if exists $param{att};
56 my $boring = $param{'boring'} eq 'yes';
57 my $terse = $param{'terse'} eq 'yes';
58 my $reverse = $param{'reverse'} eq 'yes';
59 my $mbox = $param{'mbox'} eq 'yes';
60 my $mime = $param{'mime'} eq 'yes';
61
62 my %bugusertags;
63 my %ut;
64 my %seen_users;
65
66 for my $user (map {split /[\s*,\s*]+/} make_list($param{users}||[])) {
67     next unless length($user);
68     add_user($user,\%ut,\%bugusertags,\%seen_users);
69 }
70
71 if (defined $param{usertag}) {
72      for my $usertag (make_list($param{usertag})) {
73           my %select_ut = ();
74           my ($u, $t) = split /:/, $usertag, 2;
75           Debbugs::User::read_usertags(\%select_ut, $u);
76           unless (defined $t && $t ne "") {
77                $t = join(",", keys(%select_ut));
78           }
79           add_user($u,\%ut,\%bugusertags,\%seen_users);
80           push @{$param{tag}}, split /,/, $t;
81      }
82 }
83
84
85 my $trim_headers = ($param{trim} || ((defined $msg and $msg)?'no':'yes')) eq 'yes';
86
87 my $mbox_status_message = $param{mboxstat} eq 'yes';
88 my $mbox_maint = $param{mboxmaint} eq 'yes';
89 $mbox = 1 if $mbox_status_message or $mbox_maint;
90
91
92 # Not used by this script directly, but fetch these so that pkgurl() and
93 # friends can propagate them correctly.
94 my $archive = $param{'archive'} eq 'yes';
95 my $repeatmerged = $param{'repeatmerged'} eq 'yes';
96
97 my $buglog = buglog($ref);
98 if (not defined $buglog) {
99      print $q->header(-status => "404 No such bug",
100                       -type => "text/html",
101                       -charset => 'utf-8',
102                      );
103      print fill_in_template(template=>'cgi/no_such_bug',
104                             variables => {modify_time => strftime('%a, %e %b %Y %T UTC', gmtime),
105                                           bug_num     => $ref,
106                                          },
107                            );
108      exit 0;
109 }
110
111 my @stat = stat $buglog;
112 my $mtime = '';
113 if (@stat) {
114      $mtime = strftime '%a, %d %b %Y %T GMT', gmtime($stat[9]);
115 }
116
117 if ($q->request_method() eq 'HEAD' and not defined($att) and not $mbox) {
118      print $q->header(-type => "text/html",
119                       -charset => 'utf-8',
120                       (length $mtime)?(-last_modified => $mtime):(),
121                      );
122      exit 0;
123 }
124
125
126 my $buglogfh;
127 if ($buglog =~ m/\.gz$/) {
128     my $oldpath = $ENV{'PATH'};
129     $ENV{'PATH'} = '/bin:/usr/bin';
130     $buglogfh = IO::File->new("zcat $buglog |") or quitcgi("open log for $ref: $!");
131     $ENV{'PATH'} = $oldpath;
132 } else {
133     $buglogfh = IO::File->new($buglog,'r') or quitcgi("open log for $ref: $!");
134 }
135
136
137 my %status = %{get_bug_status(bug=>$ref,
138                               bugusertags => \%bugusertags,
139                              )};
140
141 my @records;
142 eval{
143      @records = read_log_records($buglogfh);
144 };
145 if ($@) {
146      quitcgi("Bad bug log for $gBug $ref. Unable to read records: $@");
147 }
148 undef $buglogfh;
149
150
151 my $log='';
152 my $msg_num = 0;
153 my $skip_next = 0;
154 if (defined($msg) and ($msg-1) <= $#records) {
155      @records = ($records[$msg-1]);
156      $msg_num = $msg - 1;
157 }
158 my @log;
159 if ( $mbox ) {
160      my $date = strftime "%a %b %d %T %Y", localtime;
161      if (@records > 1) {
162          print $q->header(-type => "text/plain",
163                           content_disposition => qq(attachment; filename="bug_${ref}.mbox"),
164                           (length $mtime)?(-last_modified => $mtime):(),
165                          );
166      }
167      else {
168           $msg_num++;
169           print $q->header(-type => "message/rfc822",
170                            content_disposition => qq(attachment; filename="bug_${ref}_message_${msg_num}.mbox"),
171                            (length $mtime)?(-last_modified => $mtime):(),
172                           );
173      }
174      if ($mbox_status_message and @records > 1) {
175           my $status_message='';
176           my @status_fields = (retitle   => 'subject',
177                                package   => 'package',
178                                submitter => 'originator',
179                                severity  => 'severity',
180                                tag       => 'tags',
181                                owner     => 'owner',
182                                blocks    => 'blocks',
183                                forward   => 'forward',
184                               );
185           my ($key,$value);
186           while (($key,$value) = splice(@status_fields,0,2)) {
187                if (defined $status{$value} and length $status{$value}) {
188                     $status_message .= qq($key $ref $status{$value}\n);
189                }
190           }
191           print STDOUT qq(From unknown $date\n),
192                create_mime_message([From       => "$gBug#$ref <$ref\@$gEmailDomain>",
193                                     To         => "$gBug#$ref <$ref\@$gEmailDomain>",
194                                     Subject    => "Status: $status{subject}",
195                                     "Reply-To" => "$gBug#$ref <$ref\@$gEmailDomain>",
196                                    ],
197                                    <<END,);
198 $status_message
199 thanks
200
201
202 END
203      }
204      my $message_number=0;
205      my %seen_message_ids;
206      for my $record (@records) {
207           next if $record->{type} !~ /^(?:recips|incoming-recv)$/;
208           my $wanted_type = $mbox_maint?'recips':'incoming-recv';
209           # we want to include control messages anyway
210           my $record_wanted_anyway = 0;
211           my ($msg_id) = $record->{text} =~ /^Message-Id:\s+<(.+)>/im;
212           next if exists $seen_message_ids{$msg_id};
213           next if $msg_id =~/handler\..+\.ack(?:info|done)?\@/;
214           $record_wanted_anyway = 1 if $record->{text} =~ /^Received: \(at control\)/;
215           next if not $boring and not $record->{type} eq $wanted_type and not $record_wanted_anyway and @records > 1;
216           $seen_message_ids{$msg_id} = 1;
217           my @lines = split( "\n", $record->{text}, -1 );
218           if ( $lines[ 1 ] =~ m/^From / ) {
219                my $tmp = $lines[ 0 ];
220                $lines[ 0 ] = $lines[ 1 ];
221                $lines[ 1 ] = $tmp;
222           }
223           if ( !( $lines[ 0 ] =~ m/^From / ) ) {
224                unshift @lines, "From unknown $date";
225           }
226           map { s/^(>*From )/>$1/ } @lines[ 1 .. $#lines ];
227           print join( "\n", @lines ) . "\n";
228      }
229      exit 0;
230 }
231
232 else {
233      if (defined $att and defined $msg and @records) {
234           $msg_num++;
235           print handle_email_message($records[0]->{text},
236                                      ref => $ref,
237                                      msg_num => $msg_num,
238                                      att => $att,
239                                      msg => $msg,
240                                     );
241           exit 0;
242      }
243      my %seen_msg_ids;
244      for my $record (@records) {
245           $msg_num++;
246           if ($skip_next) {
247                $skip_next = 0;
248                next;
249           }
250           $skip_next = 1 if $record->{type} eq 'html' and not $boring;
251           push @log, handle_record($record,$ref,$msg_num,\%seen_msg_ids);
252      }
253 }
254
255 @log = reverse @log if $reverse;
256 $log = join("\n",@log);
257
258
259 # All of the below should be turned into a template
260
261 my %maintainer = %{getmaintainers()};
262 my %pkgsrc = %{getpkgsrc()};
263
264 my $indexentry;
265 my $showseverity;
266
267 my $tpack;
268 my $tmain;
269
270 my $dtime = strftime "%a, %e %b %Y %T UTC", gmtime;
271
272 unless (%status) {
273     print $q->header(-type => "text/html",
274                      -charset => 'utf-8',
275                      (length $mtime)?(-last_modified => $mtime):(),
276                     );
277     print fill_in_template(template=>'cgi/no_such_bug',
278                            variables => {modify_time => $dtime,
279                                          bug_num     => $ref,
280                                         },
281                           );
282     exit 0;
283 }
284
285 #$|=1;
286
287 my %package;
288 my @packages = splitpackages($status{package});
289
290 foreach my $pkg (@packages) {
291      $package{$pkg} = {maintainer => exists($maintainer{$pkg}) ? $maintainer{$pkg} : '(unknown)',
292                        exists($pkgsrc{$pkg}) ? (source => $pkgsrc{$pkg}) : (),
293                        package    => $pkg,
294                       };
295 }
296
297 # fixup various bits of the status
298 $status{tags_array} = [sort(split(/\s+/, $status{tags}))];
299 $status{date_text} = strftime('%a, %e %b %Y %T UTC', gmtime($status{date}));
300 $status{mergedwith_array} = [split(/ /,$status{mergedwith})];
301
302
303 my $version_graph = '';
304 if (@{$status{found_versions}} or @{$status{fixed_versions}}) {
305      $version_graph = q(<a href=").
306           html_escape(version_url(package => $status{package},
307                                   found => $status{found_versions},
308                                   fixed => $status{fixed_versions},
309                                  )
310                      ).
311           q("><img alt="version graph" src=").
312           html_escape(version_url(package => $status{package},
313                                   found => $status{found_versions},
314                                   fixed => $status{fixed_versions},
315                                   width => 2,
316                                   height => 2,
317                                  )
318                      ).
319           qq{"></a>};
320 }
321
322
323
324 my @blockedby= split(/ /, $status{blockedby});
325 $status{blockedby_array} = [];
326 if (@blockedby && $status{"pending"} ne 'fixed' && ! length($status{done})) {
327     for my $b (@blockedby) {
328         my %s = %{get_bug_status($b)};
329         next if $s{"pending"} eq 'fixed' || length $s{done};
330         push @{$status{blockedby_array}},{bug_num => $b, subject => $s{subject}, status => \%s};
331    }
332 }
333
334 my @blocks= split(/ /, $status{blocks});
335 $status{blocks_array} = [];
336 if (@blocks && $status{"pending"} ne 'fixed' && ! length($status{done})) {
337     for my $b (@blocks) {
338         my %s = %{get_bug_status($b)};
339         next if $s{"pending"} eq 'fixed' || length $s{done};
340         push @{$status{blocks_array}}, {bug_num => $b, subject => $s{subject}, status => \%s};
341     }
342 }
343
344 if ($buglog !~ m#^\Q$gSpoolDir/db#) {
345      $status{archived} = 1;
346 }
347
348 my $descriptivehead = $indexentry;
349
350 print $q->header(-type => "text/html",
351                  -charset => 'utf-8',
352                  (length $mtime)?(-last_modified => $mtime):(),
353                 );
354
355 print fill_in_template(template => 'cgi/bugreport',
356                        variables => {status => \%status,
357                                      package => \%package,
358                                      log           => $log,
359                                      bug_num       => $ref,
360                                      version_graph => $version_graph,
361                                      msg           => $msg,
362                                      isstrongseverity => \&Debbugs::Status::isstrongseverity,
363                                      html_escape   => \&Debbugs::CGI::html_escape,
364                                      looks_like_number => \&Scalar::Util::looks_like_number,
365                                     },
366                        hole_var  => {'&package_links' => \&Debbugs::CGI::package_links,
367                                      '&bug_links'     => \&Debbugs::CGI::bug_links,
368                                      '&version_url'   => \&Debbugs::CGI::version_url,
369                                      '&bug_url'       => \&Debbugs::CGI::bug_url,
370                                      '&strftime'      => \&POSIX::strftime,
371                                      '&maybelink'     => \&Debbugs::CGI::maybelink,
372                                     },
373                       );