From d10808d7f17c5f6f1356c22ef0992965cbaf5ce1 Mon Sep 17 00:00:00 2001
From: Gabor X Toth <*@tg-x.net>
Date: Sat, 9 Nov 2013 23:12:23 +0000
Subject: logread: ipc message monitoring

---
 contrib/logread-ipc-sdedit.pl | 59 +++++++++++++++++++++++++++++++++++++++++++
 contrib/logread-ipc.sh        |  5 ++++
 contrib/logread.pl            | 56 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 120 insertions(+)
 create mode 100755 contrib/logread-ipc-sdedit.pl
 create mode 100755 contrib/logread-ipc.sh

(limited to 'contrib')

diff --git a/contrib/logread-ipc-sdedit.pl b/contrib/logread-ipc-sdedit.pl
new file mode 100755
index 000000000..e482eee30
--- /dev/null
+++ b/contrib/logread-ipc-sdedit.pl
@@ -0,0 +1,59 @@
+#!/usr/bin/env perl
+
+# 1. Start sdedit and enable 'RT diagram server' in 'Global preferences'.
+#
+# 2. Start this tool (see defaults below):
+#    gnunet-logread-ipc-sdedit -n buffer-name -i /path/to/ipc.sock -h <sdedit-host> -p <sdedit-port>
+#
+# 3. Start a gnunet-logread instance for each component with the -n <component_name> option
+
+use strict;
+use warnings;
+
+use Getopt::Std;
+use IO::Socket::INET;
+use POSIX qw(mkfifo);
+
+my %opts;
+getopts ('i:n:h:p:', \%opts);
+
+my $ipc  = $opts{i} || '/tmp/gnunet-logread-ipc.sock';
+my $name = $opts{n} || 'gnunet';
+my $host = $opts{h} || 'localhost';
+my $port = $opts{p} || 16001;
+my %svcs = map { $_ => 1 } @ARGV;
+
+my $sdedit = IO::Socket::INET->new(PeerAddr => $host,
+                                   PeerPort => $port,
+                                   Proto => 'tcp')
+    or die "Cannot connect to $host:$port: $!\n";
+
+print $sdedit "$name\n";
+print $sdedit "_t:time[e]\n";
+print $sdedit "$_:$_\[ap\] \"$_\"\n" for @ARGV;
+print $sdedit "_e:ext[e]\n";
+print $sdedit "\n";
+
+mkfifo $ipc, 0600 or die "$ipc: $!\n" unless -e $ipc;
+open IPC, '<', $ipc or die "$ipc: $!\n";
+while (<IPC>)
+{
+    print;
+    my ($time, $from, $to, $msg, $svc);
+    if (my ($time, $from, $to, $msg) =
+        /^([A-Z][a-z]{2}\ .[0-9]\ [0-9:]{8}(?:-[0-9]{6})?)\s+
+         (\S+)\s+ -> \s+(\S+)\s+ (\S+\s+ \(\d+\))/x)
+    {
+        $from = '_e' unless exists $svcs{$from};
+        $to = '_e' unless exists $svcs{$to};
+        print $sdedit "*0 _t\n$time\n*0\n", "$from:$to.$msg\n"
+    }
+    elsif (($time, $svc, $msg) =
+           /^([A-Z][a-z]{2}\ .[0-9]\ [0-9:]{8}(?:-[0-9]{6})?)\s+
+             (\S+)\s+(.+)/x)
+    {
+        print $sdedit "*0 _t\n$time\n*0\n", "*0 $svc\n$msg\n*0\n"
+    }
+}
+
+close IPC;
diff --git a/contrib/logread-ipc.sh b/contrib/logread-ipc.sh
new file mode 100755
index 000000000..a986c629f
--- /dev/null
+++ b/contrib/logread-ipc.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+ipc=${1:-/tmp/gnunet-logread-ipc.sock}
+test -e "$ipc" || mkfifo "$ipc"
+cat "$ipc"
diff --git a/contrib/logread.pl b/contrib/logread.pl
index a72f7232d..c6f82a68d 100755
--- a/contrib/logread.pl
+++ b/contrib/logread.pl
@@ -3,13 +3,25 @@
 # Usage:
 #   gnunet-service |& gnunet-logread
 #   gnunet-logread service.log
+#
+# Options:
+#   -n <component_name>		Name of this component to use for IPC logging.
+#   -i </path/to/ipc.sock>	Path to IPC logging socket.
+#  Passing on log messages to IPC socket:
+#   -L <LOGLEVEL>		Minimum level of messages to pass on.
+#                               Log levels: NONE, ERROR, WARNING, INFO, DEBUG.
+#   -m <regex>		        Only pass on messages matching a regular expression.
 
 use strict;
 use warnings;
 
+use Getopt::Std;
 use Term::ANSIColor qw(:constants :pushpop);
 $Term::ANSIColor::AUTOLOCAL = 1;
 
+my (%opts, $name, $ipc, $msg_level, $msg_regex);
+getopts ('n:i:L:m:', \%opts);
+
 # Message type numbers to names
 my %msgtypes;
 my $prefix = $ENV{GNUNET_PREFIX} || '/usr';
@@ -28,8 +40,50 @@ else
     warn "$filename: $!, try setting \$GNUNET_PREFIX";
 }
 
+my %levels = ( NONE => 0, ERROR => 1, WARNING => 2, INFO => 4, DEBUG => 8 );
+if (exists $opts{n})
+{
+    $name = $opts{n};
+    $ipc = $opts{i} || '/tmp/gnunet-logread-ipc.sock';
+    $msg_level = exists $levels{$opts{L}} ? $levels{$opts{L}} : 0;
+    $msg_regex = $opts{m};
+    print STDERR "RE: /$msg_regex/\n";
+    open IPC, '>', $ipc or die "$ipc: $!\n";
+}
+
 while (<>)
 {
+    if (fileno IPC) {
+        my ($time, $type, $size, $from, $to, $level, $msg);
+        if (($time, $type, $size, $from, $to) =
+            /^([A-Z][a-z]{2}\ .[0-9]\ [0-9:]{8}(?:-[0-9]{6})?)\ util-.*\b
+             (?: Received | Transmitting )\ message \b.*?\b
+             type \s+ (\d+) \b.*?\b
+             size \s+ (\d+) \b.*?\b
+             (?: from \s+ (\S+)
+               | to   \s+ (\S+) ) /x)
+        {
+            $from ||= $name;
+            $to ||= $name;
+            my ($time, $type, $size, $from, $to) = ($1, $2, $3,
+                                                $4 || $name, $5 || $name);
+            my $msg = exists $msgtypes{$type} ? $msgtypes{$type} : $type;
+            my $ofh = select IPC;
+            print IPC "$time\t$from -> $to\t$msg ($size)\n";
+            $|++;
+            select $ofh;
+        }
+        if (($time, $level, $msg) =
+            /^([A-Z][a-z]{2}\ .[0-9]\ [0-9:]{8}(?:-[0-9]{6})?)
+              \s+\S+\s+(\S+)\s+(.+)/x
+            and (exists $levels{$level}
+                 && $levels{$level} <= $msg_level
+                 && (!defined $msg_regex || $msg =~ /$msg_regex/i)))
+        {
+            print IPC "$time\t$name\t$level: $msg\n";
+        }
+    }
+
     # Timestamp (e.g. Nov 01 19:36:11-384136)
     s/^([A-Z][a-z]{2} .[0-9] [0-9:]{8}(?:-[0-9]{6})?)/YELLOW $1/e;
 
@@ -50,3 +104,5 @@ while (<>)
 
     print;
 }
+
+fileno IPC and close IPC;
-- 
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