source: people/joerg.steffens/technical/ldap-stats/ldap-stats.mutli-date-formats.diff@ 1153

--- ldap-stats.pl.orig  2007-04-28 05:25:34.000000000 +0200
+++ ldap-stats.pl       2013-04-17 12:53:18.000000000 +0200
@@ -10,6 +10,8 @@
 #
 # Revision History:
 #
+#  - add support for rsyslog log format -- Joerg Steffens, dass II GmbH
+#
 #  Version 5.2
 #  Perl::Tidy and Perl::Critic -- Gavin Henry, Suretec Systems Ltd.
 #
@@ -315,10 +317,18 @@
     FIELD   => '%4s',
 };
 
+# slapd log file can use different date formats:
+#   rsyslog: 2013-04-17T10:45:15.576386+02:00
+#   syslog:  Mar 23 09:54:34
+# We check the first lone of the log file 
+# and use the first date regex that matches.
+my @date_formats=('\d\d\d\d-(\d\d)-(\d\d)T(\d\d):(\d\d):(\d\d)\.\d\d\d\d\d\d\+\d\d:\d\d', '(\w+)\s+(\d+)\s+(\d+):(\d+):(\d+)');
+my $regex_date;
+
 ###################################################
 ### Open the logfile and process all of the entries
 ###################################################
-for my $file (@ARGV) {
+FILE: for my $file (@ARGV) {
     $logfile = $file;
     my $lines = 0;
 
@@ -359,11 +369,25 @@
 
     while ( my $line = <LOGFILE> ) {
 
-        ### check start and end dates
-        if ( $line =~ /^(\w+\s+\d+\s+\d+:\d+:\d+)/mx ) {
-            if ( !$logarray{$logfile}{SDATE} ) {
-                $logarray{$logfile}{SDATE} = $1;
+        # first line
+        if ( !$logarray{$logfile}{SDATE} ) {
+            # check date format in logfile
+            for my $regex (@date_formats) {
+                print "regex: $regex\n";
+                if ( $line =~ /^($regex)/mx ) {
+                    $logarray{$logfile}{SDATE} = $1;
+                    $regex_date = $regex;
+                    last;
+                }
             }
+            if( ! $regex_date ) {
+                print "ERROR: unable to determine date format in '$logfile'\n";
+                next FILE;
+            }
+        }
+
+        ### check start and end dates
+        if ( $line =~ /^($regex_date)/mx ) {
             $logarray{$logfile}{EDATE} = $1;
         }
 
@@ -375,7 +399,7 @@
 
         ### Check for a new connection
         if ( $line =~
-/^(\w+)\s+(\d+)\s+(\d+):(\d+):(\d+).*conn=(\d+) [ ] fd=\d+ [ ] (?:ACCEPT|connection) [ ] from/mx
+/^$regex_date .*conn=(\d+) [ ] fd=\d+ [ ] (?:ACCEPT|connection) [ ] from/mx
           )
         {
             my $month = $1;
@@ -483,13 +507,13 @@
             ### Check for anonymous binds
         }
         elsif ( $line =~
-/^(\w+)\s+(\d+)\s+(\d+):\d+:\d+.*conn=(\d+)  [ ] op=\d+ [ ] BIND [ ] dn="" [ ] method=128/mx
+/^$regex_date .*conn=(\d+)  [ ] op=\d+ [ ] BIND [ ] dn="" [ ] method=128/mx
           )
         {
             my $month = $1;
             my $day   = $2;
             my $hour  = $3;
-            my $conn  = $4;
+            my $conn  = $6;
 
             ### Increment the counters
             if (   defined $conns{$conn}
@@ -508,14 +532,14 @@
             ### Check for non-anonymous binds
         }
         elsif ( $line =~
-/^(\w+)\s+(\d+)\s+(\d+):\d+:\d+.*conn=(\d+) [ ] op=\d+ [ ] BIND [ ] dn="([^"]+)" [ ] mech=/mx
+/^$regex_date .*conn=(\d+) [ ] op=\d+ [ ] BIND [ ] dn="([^"]+)" [ ] mech=/mx
           )
         {
             my $month  = $1;
             my $day    = $2;
             my $hour   = $3;
-            my $conn   = $4;
-            my $binddn = lc $5;
+            my $conn   = $6;
+            my $binddn = lc $7;
 
             ### Increment the counters
             if (   defined $conns{$conn}
@@ -566,13 +590,13 @@
             ### Check for SEARCHES
         }
         elsif ( $line =~
-/^(\w+)\s+(\d+)\s+(\d+):\d+:\d+.*conn=(\d+) [ ] op=\d+ [ ] SEARCH [ ] RESULT/mx
+/^$regex_date .*conn=(\d+) [ ] op=\d+ [ ] SEARCH [ ] RESULT/mx
           )
         {
             my $month = $1;
             my $day   = $2;
             my $hour  = $3;
-            my $conn  = $4;
+            my $conn  = $6;
 
             ### Increment the counters
             if (   defined $conns{$conn}
@@ -588,13 +612,13 @@
             ### Check for unbinds
         }
         elsif ( $line =~
-            /^(\w+)\s+(\d+)\s+(\d+):\d+:\d+.*conn=(\d+) [ ] op=\d+ [ ] UNBIND/mx
+            /^$regex_date .*conn=(\d+) [ ] op=\d+ [ ] UNBIND/mx
           )
         {
             my $month = $1;
             my $day   = $2;
             my $hour  = $3;
-            my $conn  = $4;
+            my $conn  = $6;
 
             ### Increment the counters
             if (   defined $conns{$conn}
@@ -611,13 +635,13 @@
             ### TODO: Add other err=X values from contrib/ldapc++/src/LDAPResult.h
         }
         elsif ( $line =~
-/^(\w+)\s+(\d+)\s+(\d+):\d+:\d+.*conn=(\d+) [ ] op=\d+(?: SEARCH)? [ ] RESULT [ ]/mx
+/^$regex_date  .*conn=(\d+) [ ] op=\d+(?: SEARCH)? [ ] RESULT [ ]/mx
           )
         {
             my $month = $1;
             my $day   = $2;
             my $hour  = $3;
-            my $conn  = $4;
+            my $conn  = $6;
 
             if ( $line =~ /\berr=49\b/mx ) {
                 ### Increment the counters
@@ -635,14 +659,14 @@
             ### Check for entry changes: add, modify modrdn, delete
         }
         elsif ( $line =~
-/^(\w+)\s+(\d+)\s+(\d+):\d+:\d+.*conn=(\d+) [ ] op=\d+ [ ] (ADD|CMP|MOD|MODRDN|DEL) [ ] dn=/mx
+/^$regex_date .*conn=(\d+) [ ] op=\d+ [ ] (ADD|CMP|MOD|MODRDN|DEL) [ ] dn=/mx
           )
         {
             my $month = $1;
             my $day   = $2;
             my $hour  = $3;
-            my $conn  = $4;
-            my $type  = $5;
+            my $conn  = $6;
+            my $type  = $7;
 
             ### Increment the counters
             if (   defined $conns{$conn}