Commit | Line | Data |
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059ec3d9 | 1 | #! PERL_COMMAND -w |
3ce62588 | 2 | # $Cambridge: exim/src/src/exigrep.src,v 1.9 2007/03/13 16:37:57 ph10 Exp $ |
059ec3d9 PH |
3 | |
4 | use strict; | |
5 | ||
f3f065bb | 6 | # Copyright (c) 2007 University of Cambridge. |
059ec3d9 PH |
7 | # See the file NOTICE for conditions of use and distribution. |
8 | ||
9 | # Except when they appear in comments, the following placeholders in this | |
10 | # source are replaced when it is turned into a runnable script: | |
11 | # | |
12 | # PERL_COMMAND | |
13 | # ZCAT_COMMAND | |
14 | # COMPRESS_SUFFIX | |
15 | ||
16 | # PROCESSED_FLAG | |
17 | ||
18 | # This is a perl script which extracts from an Exim log all entries | |
19 | # for all messages that have an entry that matches a given pattern. | |
20 | # If *any* entry for a particular message matches the pattern, *all* | |
21 | # entries for that message are displayed. | |
22 | ||
23 | # We buffer up information on a per-message basis. It is done this way rather | |
24 | # than reading the input twice so that the input can be a pipe. | |
25 | ||
26 | # There must be one argument, which is the pattern. Subsequent arguments | |
27 | # are the files to scan; if none, the standard input is read. If any file | |
28 | # appears to be compressed, it is passed through zcat. We can't just do this | |
29 | # for all files, because zcat chokes on non-compressed files. | |
30 | ||
75b1493f PH |
31 | # Performance optimized in 02/02/2007 by Jori Hamalainen |
32 | # Typical run time acceleration: 4 times | |
33 | ||
34 | ||
059ec3d9 PH |
35 | use Getopt::Std qw(getopts); |
36 | use POSIX qw(mktime); | |
37 | ||
38 | ||
39 | # This subroutine converts a time/date string from an Exim log line into | |
40 | # the number of seconds since the epoch. It handles optional timezone | |
41 | # information. | |
42 | ||
43 | sub seconds { | |
44 | my($year,$month,$day,$hour,$min,$sec,$tzs,$tzh,$tzm) = | |
75b1493f | 45 | $_[0] =~ /^(\d{4})-(\d\d)-(\d\d)\s(\d\d):(\d\d):(\d\d)(?>\s([+-])(\d\d)(\d\d))?/o; |
059ec3d9 PH |
46 | |
47 | my $seconds = mktime $sec, $min, $hour, $day, $month - 1, $year - 1900; | |
48 | ||
49 | if (defined $tzs) | |
50 | { | |
51 | $seconds -= $tzh * 3600 + $tzm * 60 if $tzs eq "+"; | |
52 | $seconds += $tzh * 3600 + $tzm * 60 if $tzs eq "-"; | |
53 | } | |
54 | ||
55 | return $seconds; | |
56 | } | |
57 | ||
58 | ||
59 | # This subroutine processes a single line (in $_) from a log file. Program | |
60 | # defensively against short lines finding their way into the log. | |
61 | ||
b2d5182b | 62 | my (%saved, %id_list, $pattern, $queue_time, $insensitive, $invert); |
059ec3d9 PH |
63 | |
64 | sub do_line { | |
395ff96d PH |
65 | |
66 | # Convert syslog lines to mainlog format, as in eximstats. | |
67 | ||
75b1493f | 68 | if (!/^\d{4}-/o) { $_ =~ s/^.*? exim\b.*?: //o; } |
395ff96d | 69 | |
059ec3d9 | 70 | return unless |
c0997ccb | 71 | my($date,$id) = /^(\d{4}-\d\d-\d\d \d\d:\d\d:\d\d (?:[+-]\d{4} )?)(?:\[\d+\] )?(\w{6}\-\w{6}\-\w{2})?/o; |
059ec3d9 PH |
72 | |
73 | # Handle the case when the log line belongs to a specific message. We save | |
74 | # lines for specific messages until the message is complete. Then either print | |
f3f065bb | 75 | # or discard. |
059ec3d9 | 76 | |
75b1493f | 77 | if (defined $id) |
059ec3d9 PH |
78 | { |
79 | $saved{$id} = '' unless defined($saved{$id}); | |
80 | ||
81 | # Save up the data for this message in case it becomes interesting later. | |
82 | ||
83 | $saved{$id} .= $_; | |
84 | ||
75b1493f | 85 | # Are we interested in this id ? Short circuit if we already were interested. |
059ec3d9 | 86 | |
b2d5182b PH |
87 | if ($invert) |
88 | { | |
89 | $id_list{$id} = 1 if (!defined($id_list{$id})); | |
90 | $id_list{$id} = 0 if (($insensitive && /$pattern/io) || /$pattern/o); | |
91 | } | |
92 | else | |
93 | { | |
94 | $id_list{$id} = 1 if defined $id_list{$id} || | |
95 | ($insensitive && /$pattern/io) || /$pattern/o; | |
96 | } | |
059ec3d9 PH |
97 | |
98 | # See if this is a completion for some message. If it is interesting, | |
99 | # print it, but in any event, throw away what was saved. | |
100 | ||
75b1493f | 101 | if (index($_, 'Completed') != -1 || |
3ce62588 PH |
102 | index($_, 'SMTP data timeout') != -1 || |
103 | (index($_, 'rejected') != -1 && | |
104 | /^(\d{4}-\d\d-\d\d \d\d:\d\d:\d\d (?:[+-]\d{4} )?)(?:\[\d+\] )?\w{6}\-\w{6}\-\w{2} rejected/o)) | |
059ec3d9 | 105 | { |
75b1493f PH |
106 | if ($queue_time != -1 && |
107 | $saved{$id} =~ /^(\d{4}-\d\d-\d\d \d\d:\d\d:\d\d ([+-]\d{4} )?)/o) | |
059ec3d9 PH |
108 | { |
109 | my $old_sec = &seconds($1); | |
110 | my $sec = &seconds($date); | |
3ce62588 | 111 | $id_list{$id} = 0 if $id_list{$id} && $sec - $old_sec <= $queue_time; |
059ec3d9 PH |
112 | } |
113 | ||
3ce62588 | 114 | print "$saved{$id}\n" if ($id_list{$id}); |
b2d5182b | 115 | delete $id_list{$id}; |
059ec3d9 PH |
116 | delete $saved{$id}; |
117 | } | |
118 | } | |
119 | ||
120 | # Handle the case where the log line does not belong to a specific message. | |
121 | # Print it if it is interesting. | |
122 | ||
b2d5182b PH |
123 | elsif ( ($invert && (($insensitive && !/$pattern/io) || !/$pattern/o)) || |
124 | (!$invert && (($insensitive && /$pattern/io) || /$pattern/o)) ) | |
75b1493f | 125 | { print "$_\n"; } |
059ec3d9 PH |
126 | } |
127 | ||
128 | ||
129 | # The main program. Extract the pattern and make sure any relevant characters | |
130 | # are quoted if the -l flag is given. The -t flag gives a time-on-queue value | |
131 | # which is an additional condition. | |
132 | ||
b2d5182b PH |
133 | getopts('Ilvt:',\my %args); |
134 | $queue_time = $args{'t'}? $args{'t'} : -1; | |
75b1493f | 135 | $insensitive = $args{'I'}? 0 : 1; |
b2d5182b | 136 | $invert = $args{'v'}? 1 : 0; |
059ec3d9 | 137 | |
b2d5182b | 138 | die "usage: exigrep [-I] [-l] [-t <seconds>] [-v] <pattern> [<log file>]...\n" |
059ec3d9 PH |
139 | if ($#ARGV < 0); |
140 | ||
141 | $pattern = shift @ARGV; | |
142 | $pattern = quotemeta $pattern if $args{l}; | |
143 | ||
144 | ||
145 | # If file arguments are given, open each one and process according as it is | |
146 | # is compressed or not. | |
147 | ||
148 | if (@ARGV) | |
149 | { | |
150 | foreach (@ARGV) | |
151 | { | |
152 | my $filename = $_; | |
75b1493f | 153 | if ($filename =~ /\.(?:COMPRESS_SUFFIX)$/o) |
059ec3d9 PH |
154 | { |
155 | open(LOG, "ZCAT_COMMAND $filename |") || | |
156 | die "Unable to zcat $filename: $!\n"; | |
157 | } | |
158 | else | |
159 | { | |
160 | open(LOG, "<$filename") || die "Unable to open $filename: $!\n"; | |
161 | } | |
162 | do_line() while (<LOG>); | |
163 | close(LOG); | |
164 | } | |
165 | } | |
166 | ||
167 | # If no files are named, process STDIN only | |
168 | ||
169 | else { do_line() while (<STDIN>); } | |
170 | ||
3ce62588 | 171 | # At the end of processing all the input, print any uncompleted messages. |
059ec3d9 | 172 | |
79749a79 PH |
173 | for (keys %id_list) |
174 | { | |
3ce62588 | 175 | print "+++ $_ has not completed +++\n$saved{$_}\n"; |
79749a79 | 176 | } |
059ec3d9 PH |
177 | |
178 | # End of exigrep |