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-rw-r--r--Bugzilla/Arecibo.pm303
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diff --git a/Bugzilla/Arecibo.pm b/Bugzilla/Arecibo.pm
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+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# This Source Code Form is "Incompatible With Secondary Licenses", as
+# defined by the Mozilla Public License, v. 2.0.
+
+package Bugzilla::Arecibo;
+
+use strict;
+use warnings;
+
+use base qw(Exporter);
+our @EXPORT = qw(
+ arecibo_handle_error
+ arecibo_generate_id
+ arecibo_should_notify
+);
+
+use Apache2::Log;
+use Apache2::SubProcess;
+use Carp;
+use Email::Date::Format 'email_gmdate';
+use LWP::UserAgent;
+use POSIX 'setsid';
+use Sys::Hostname;
+
+use Bugzilla::Util;
+
+use constant CONFIG => {
+ # 'types' maps from the error message to types and priorities
+ types => [
+ {
+ type => 'the_schwartz',
+ boost => -10,
+ match => [
+ qr/TheSchwartz\.pm/,
+ ],
+ },
+ {
+ type => 'database_error',
+ boost => -10,
+ match => [
+ qr/DBD::mysql/,
+ qr/Can't connect to the database/,
+ ],
+ },
+ {
+ type => 'patch_reader',
+ boost => +5,
+ match => [
+ qr#/PatchReader/#,
+ ],
+ },
+ {
+ type => 'uninitialized_warning',
+ boost => 0,
+ match => [
+ qr/Use of uninitialized value/,
+ ],
+ },
+ ],
+
+ # 'codes' lists the code-errors which are sent to arecibo
+ codes => [qw(
+ bug_error
+ chart_datafile_corrupt
+ chart_dir_nonexistent
+ chart_file_open_fail
+ illegal_content_type_method
+ jobqueue_insert_failed
+ ldap_bind_failed
+ mail_send_error
+ template_error
+ token_generation_error
+ )],
+
+ # any error messages matching these regex's will not be sent to arecibo
+ ignore => [
+ qr/^Software caused connection abort/,
+ ],
+};
+
+sub arecibo_generate_id {
+ return sprintf("%s.%s", (time), $$);
+}
+
+sub arecibo_should_notify {
+ my $code_error = shift;
+ return grep { $_ eq $code_error } @{CONFIG->{codes}};
+}
+
+sub arecibo_handle_error {
+ my $class = shift;
+ my @message = split(/\n/, shift);
+ my $id = shift || arecibo_generate_id();
+
+ my $is_error = $class eq 'error';
+ if ($class ne 'error' && $class ne 'warning') {
+ # it's a code-error
+ return 0 unless arecibo_should_notify($class);
+ $is_error = 1;
+ }
+
+ # build traceback
+ my $traceback;
+ {
+ # for now don't show function arguments, in case they contain
+ # confidential data. waiting on bug 700683
+ #local $Carp::MaxArgLen = 256;
+ #local $Carp::MaxArgNums = 0;
+ local $Carp::MaxArgNums = -1;
+ local $Carp::CarpInternal{'CGI::Carp'} = 1;
+ local $Carp::CarpInternal{'Bugzilla::Error'} = 1;
+ local $Carp::CarpInternal{'Bugzilla::Arecibo'} = 1;
+ $traceback = Carp::longmess();
+ }
+
+ # strip timestamp
+ foreach my $line (@message) {
+ $line =~ s/^\[[^\]]+\] //;
+ }
+ my $message = join(" ", map { trim($_) } grep { $_ ne '' } @message);
+
+ # don't send to arecibo unless configured
+ my $arecibo_server = Bugzilla->params->{arecibo_server} || '';
+ my $send_to_arecibo = $arecibo_server ne '';
+ if ($send_to_arecibo) {
+ # message content filtering
+ foreach my $re (@{CONFIG->{ignore}}) {
+ if ($message =~ $re) {
+ $send_to_arecibo = 0;
+ last;
+ }
+ }
+ }
+
+ # log to apache's error_log
+ if ($send_to_arecibo) {
+ $message .= " [#$id]";
+ } else {
+ $traceback =~ s/\n/ /g;
+ $message .= " $traceback";
+ }
+ _write_to_error_log($message, $is_error);
+
+ return 0 unless $send_to_arecibo;
+
+ # set the error type and priority from the message content
+ $message = join("\n", grep { $_ ne '' } @message);
+ my $type = '';
+ my $priority = $class eq 'error' ? 3 : 10;
+ foreach my $rh_type (@{CONFIG->{types}}) {
+ foreach my $re (@{$rh_type->{match}}) {
+ if ($message =~ $re) {
+ $type = $rh_type->{type};
+ $priority += $rh_type->{boost};
+ last;
+ }
+ }
+ last if $type ne '';
+ }
+ $type ||= $class;
+ $priority = 1 if $priority < 1;
+ $priority = 10 if $priority > 10;
+
+ my $username = '';
+ eval { $username = Bugzilla->user->login };
+
+ my $data = [
+ msg => $message,
+ priority => $priority,
+ server => hostname(),
+ status => '500',
+ timestamp => email_gmdate(),
+ traceback => $traceback,
+ type => $type,
+ uid => $id,
+ url => Bugzilla->cgi->self_url,
+ user_agent => $ENV{HTTP_USER_AGENT},
+ username => $username,
+ ];
+
+ # fork then post
+ $SIG{CHLD} = 'IGNORE';
+ my $pid = fork();
+ if (defined($pid) && $pid == 0) {
+ # detach
+ chdir('/');
+ open(STDIN, '</dev/null');
+ open(STDOUT, '>/dev/null');
+ open(STDERR, '>/dev/null');
+ setsid();
+
+ # post to arecibo (ignore any errors)
+ my $agent = LWP::UserAgent->new(
+ agent => 'bugzilla.mozilla.org',
+ timeout => 10, # seconds
+ );
+ $agent->post($arecibo_server, $data);
+
+ CORE::exit(0);
+ }
+ return 1;
+}
+
+sub _write_to_error_log {
+ my ($message, $is_error) = @_;
+ if ($ENV{MOD_PERL}) {
+ if ($is_error) {
+ Apache2::ServerRec::log_error($message);
+ } else {
+ Apache2::ServerRec::warn($message);
+ }
+ } else {
+ print STDERR "$message\n";
+ }
+}
+
+# lifted from Bugzilla::Error
+sub _in_eval {
+ my $in_eval = 0;
+ for (my $stack = 1; my $sub = (caller($stack))[3]; $stack++) {
+ last if $sub =~ /^ModPerl/;
+ last if $sub =~ /^Bugzilla::Template/;
+ $in_eval = 1 if $sub =~ /^\(eval\)/;
+ }
+ return $in_eval;
+}
+
+sub _arecibo_die_handler {
+ my $message = shift;
+ $message =~ s/^undef error - //;
+
+ # avoid recursion, and check for CGI::Carp::die failures
+ my $in_cgi_carp_die = 0;
+ for (my $stack = 1; my $sub = (caller($stack))[3]; $stack++) {
+ return if $sub =~ /:_arecibo_die_handler$/;
+ $in_cgi_carp_die = 1 if $sub =~ /CGI::Carp::die$/;
+ }
+
+ return if _in_eval();
+
+ # mod_perl overrides exit to call die with this string
+ exit if $message =~ /\bModPerl::Util::exit\b/;
+
+ my $nested_error = '';
+ my $is_compilation_failure = $message =~ /\bcompilation (aborted|failed)\b/i;
+
+ # if we are called via CGI::Carp::die chances are something is seriously
+ # wrong, so skip trying to use ThrowTemplateError
+ if (!$in_cgi_carp_die && !$is_compilation_failure) {
+ eval { Bugzilla::Error::ThrowTemplateError($message) };
+ $nested_error = $@ if $@;
+ }
+
+ # right now it's hard to determine if we've already returned a content-type
+ # header, it's better to return two than none
+ print "Content-type: text/html\n\n";
+
+ if ($is_compilation_failure ||
+ $in_cgi_carp_die ||
+ ($nested_error && $nested_error !~ /\bModPerl::Util::exit\b/)
+ ) {
+ $nested_error = html_quote($nested_error);
+ my $uid = arecibo_generate_id();
+ my $notified = arecibo_handle_error('error', $message, $uid);
+ my $maintainer = html_quote(Bugzilla->params->{'maintainer'});
+ $message =~ s/ at \S+ line \d+\.\s*$//;
+ $message = html_quote($message);
+ $uid = html_quote($uid);
+ print qq(
+ <h1>Bugzilla has suffered an internal error</h1>
+ <pre>$message</pre>
+ <hr>
+ <pre>$nested_error</pre>
+ );
+ if ($notified) {
+ print qq(
+ The <a href="mailto:$maintainer">Bugzilla maintainers</a> have
+ been notified of this error [#$uid].
+ );
+ };
+ }
+ exit;
+}
+
+sub install_arecibo_handler {
+ require CGI::Carp;
+ CGI::Carp::set_die_handler(\&_arecibo_die_handler);
+ $main::SIG{__WARN__} = sub {
+ return if _in_eval();
+ arecibo_handle_error('warning', shift);
+ };
+}
+
+BEGIN {
+ if ($ENV{SCRIPT_NAME} || $ENV{MOD_PERL}) {
+ install_arecibo_handler();
+ }
+}
+
+1;