#!@PERLV_PATH@
##
## Amazingly hacked version of Hank's rancid - this one tries to
## deal with Junipers.
##
## Original Rancid: Copyright (C) 1997 by Henry Kilmer.
## All rights reserved.
##
## This software may be freely copied, modified and redistributed without
## fee for non-commerical purposes provided that this copyright notice is
## preserved intact on all copies and modified copies.
##
## There is no warranty or other guarantee of fitness of this software.
## It is provided solely "as is". The author(s) disclaim(s) all
## responsibility and liability with respect to this software's usage
## or its effect upon hardware, computer systems, other software, or
## anything else.
##
##
#
#  RANCID - Really Awesome New Cisco confIg Differ
#
# usage: jrancid [-d] [-l] [-f filename | $host]
#
use Getopt::Std;
getopts('dfl');
$debug = $opt_d;
$log = $opt_l;
$file = $opt_f;
$host = $ARGV[0];

$clean_run = 0;
$found_end = 0;

# This routine is used to print out the router configuration
sub ProcessHistory {
    my($new_hist_tag,$new_command,$command_string,@string)=(@_);
    if((($new_hist_tag ne $hist_tag) || ($new_command ne $command))
       && defined %history) {
	print eval "$command \%history";
	undef %history;
    }
    if (($new_hist_tag) && ($new_command) && ($command_string)) {
	if ($history{$command_string}) {
	    $history{$command_string} = "$history{$command_string}@string";
	} else {
	    $history{$command_string} = "@string";
	}
    } elsif (($new_hist_tag) && ($new_command)) {
	$history{++$#history} = "@string";
    } else {
	print "@string";
    }
    $hist_tag = $new_hist_tag;
    $command = $new_command;
    1;
}

sub numerically { $a <=> $b; }

# This is a sort routing that will sort numerically on the
# keys of a hash as if it were a normal array.
sub keynsort {
    local(%lines)=@_;
    local($i) = 0;
    local(@sorted_lines);
    foreach $key (sort numerically keys(%lines)) {
	$sorted_lines[$i] = $lines{$key};
	$i++;
    }
    @sorted_lines;
}

# This is a sort routing that will sort on the
# keys of a hash as if it were a normal array.
sub keysort {
    local(%lines)=@_;
    local($i) = 0;
    local(@sorted_lines);
    foreach $key (sort keys(%lines)) {
	$sorted_lines[$i] = $lines{$key};
	$i++;
    }
    @sorted_lines;
}

# This is a sort routing that will sort on the
# values of a hash as if it were a normal array.
sub valsort{
    local(%lines)=@_;
    local($i) = 0;
    local(@sorted_lines);
    foreach $key (sort values %lines) {
        $sorted_lines[$i] = $key;
        $i++;
    }
    @sorted_lines;
}

# This is a numerical sort routing (ascending).
sub numsort {
    local(%lines)=@_;
    local($i) = 0;
    local(@sorted_lines);
    foreach $num (sort {$a <=> $b} keys %lines) {
	$sorted_lines[$i] = $lines{$num};
	$i++;
    }
    @sorted_lines;
}

# This is a sort routine that will sort on the
# ip address when the ip address is anywhere in
# the strings.
sub ipsort {
    local(%lines)=@_;
    local($i) = 0;
    local(@sorted_lines);
    foreach $addr (sort sortbyipaddr keys %lines) {
	$sorted_lines[$i] = $lines{$addr};
	$i++;
    }
    @sorted_lines;
}

# These two routines will sort based upon IP addresses
sub ipaddrval {
    my(@a) = ($_[0] =~ m#^(\d+)\.(\d+)\.(\d+)\.(\d+)$#);
    $a[3]+256*($a[2]+256*($a[1]+256*$a[0]));
}
sub sortbyipaddr {
    &ipaddrval($a) <=> &ipaddrval($b);
}

###
### Start of real work
###

# This routine parses "show chassis clocks"
sub ShowChassisClocks {
    print STDERR "    In ShowChassisClocks: $_" if ($debug);

    s/^[a-z]+@//;
    ProcessHistory("","","","# $_");
    while (<INPUT>) {
	tr/\015//d;
	last if(/^$prompt/);

	/error: the chassis subsystem is not running/ && return;
	/Couldn\'t initiate connection/ && return;
	/Unrecognized command/ && return;
	/command is not valid/ && return;
	/^\s+\^/ && return;
	/syntax error/ && return;
	ProcessHistory("","","","# $_");
    }
    return;
}

# This routine parses "show chassis environment"
sub ShowChassisEnvironment {
    print STDERR "    In ShowChassisEnvironment: $_" if ($debug);

    s/^[a-z]+@//;
    ProcessHistory("","","","# $_");
    while (<INPUT>) {
	tr/\015//d;
	last if(/^$prompt/);

	/error: the chassis subsystem is not running/ && return;
	/Couldn\'t initiate connection/ && return;
	/Unrecognized command/ && return;
	/command is not valid/ && return;
	/^\s+\^/ && return;
	/syntax error/ && return;
	/ backplane temperature/ && next;
	/(\s*Power supply.*), temperature/ &&
		ProcessHistory("","","","# $1\n") && next;
	/(\s*.+) +\d+ degrees C.*$/ &&
		ProcessHistory("","","","# $1\n") && next;
	/(^.*\S)\s+ Spinning at .*$/ &&
		ProcessHistory("","","","# $1\n") && next;
	ProcessHistory("","","","# $_");
    }
    return;
}

# This routine parses "show chassis firmware"
sub ShowChassisFirmware {
    print STDERR "    In ShowChassisFirmware: $_" if ($debug);

    s/^[a-z]+@//;
    ProcessHistory("","","","# $_");
    while (<INPUT>) {
	tr/\015//d;
	last if(/^$prompt/);

	/error: the chassis subsystem is not running/ && return;
	/Couldn\'t initiate connection/ && return;
	/Unrecognized command/ && return;
	/command is not valid/ && return;
	/^\s+\^/ && return;
	/syntax error/ && return;
	ProcessHistory("","","","# $_");
    }
    return;
}

# This routine parses "show chassis fpc detail"
sub ShowChassisFpcDetail {
    print STDERR "    In ShowChassisFpcDetail: $_" if ($debug);

    s/^[a-z]+@//;
    ProcessHistory("","","","# $_");
    while (<INPUT>) {
	tr/\015//d;
	last if(/^$prompt/);

	/error: the chassis subsystem is not running/ && return;
	/Couldn\'t initiate connection/ && return;
	/Unrecognized command/ && return;
	/command is not valid/ && return;
	/^\s+\^/ && return;
	/syntax error/ && return;
	/ Temperature/ && next;
	/ Start time/ && next;
	/ Uptime/ && next;
	ProcessHistory("","","","# $_");
    }
    return;
}

# This routine parses "show chassis hardware"
sub ShowChassisHardware {
    print STDERR "    In ShowChassisHardware: $_" if ($debug);

    s/^[a-z]+@//;
    ProcessHistory("","","","# $_");
    while (<INPUT>) {
	tr/\015//d;
	last if(/^$prompt/);

	/error: the chassis subsystem is not running/ && return;
	/Couldn\'t initiate connection/ && return;
	/Unrecognized command/ && return;
	/command is not valid/ && return;
	/^\s+\^/ && return;
	/syntax error/ && return;
	ProcessHistory("","","","# $_");
    }
    return;
}

# This routine parses "show chassis routing-engine"
# Most output is ignored.
sub ShowChassisRoutingEngine {
    print STDERR "    In ShowChassisRoutingEngine: $_" if ($debug);

    s/^[a-z]+@//;
    ProcessHistory("","","","# $_");
    while (<INPUT>) {
	tr/\015//d;
	last if(/^$prompt/);

	/error: the chassis subsystem is not running/ && return;
	/Couldn\'t initiate connection/ && return;
	/Unrecognized command/ && return;
	/command is not valid/ && return;
	/^\s+\^/ && return;
	/syntax error/ && return;
	/^Routing Engine status:/ && ProcessHistory("","","","# $_") && next;
	/ Slot / && ProcessHistory("","","","# $_") && next;
	/ Current state/ && ProcessHistory("","","","# $_") && next;
	/ Election priority/ && ProcessHistory("","","","# $_") && next;
	/ DRAM/ && ProcessHistory("","","","# $_") && next;
	/ Serial ID/ && ProcessHistory("","","","# $_") && next;
	/^\s*$/ && ProcessHistory("","","","# $_") && next;
    }
    return;
}

# This routine parses "show chassis feb" "show chassis scb", "show
# chassis sfm detail", and "show chassis ssb".
# Only do this routine once.
sub ShowChassisSCB {
    print STDERR "    In ShowChassisSCB: $_" if ($debug);

    s/^[a-z]+@//;
    ProcessHistory("","","","# $_");
    while (<INPUT>) {
	tr/\015//d;
	last if(/^$prompt/);

	return if ($ShowChassisSCB);
	/error: the chassis subsystem is not running/ && return;
	/Couldn\'t initiate connection/ && return;
	/Unrecognized command/ && return;
	/command is not valid/ && return;
	/^\s+\^/ && return;
	/syntax error/ && return;
	/ Temperature/ && next;
	/ utilization/ && next;
	/ Start time/ && next;
	/ Uptime/ && next;
	/ (IP|MLPS) routes:/ && next;
	/ used:/ && next;
	ProcessHistory("","","","# $_");
    }
    $ShowChassisSCB = 1;
    return;
}

# This routine parses "show system boot-messages"
sub ShowSystemBootMessages {
    print STDERR "    In ShowSystemBootMessages: $_" if ($debug);

    s/^[a-z]+@//;
    ProcessHistory("","","","# $_");
    while (<INPUT>) {
	tr/\015//d;
	last if(/^$prompt/);

	/Unrecognized command/ && return;
	/^\s+\^/ && return;
	/syntax error/ && return;
	/^JUNOS / && <INPUT> && next;
	/^real memory / && next;
	/^avail memory / && next;
	/^\/dev\// && next;
	ProcessHistory("","","","# $_");
    }
    return;
}

# This routine parses "show version"
sub ShowVersion {
    print STDERR "    In ShowVersion: $_" if ($debug);

    s/^[a-z]+@//;
    ProcessHistory("","","","# $_");
    while (<INPUT>) {
	tr/\015//d;
	last if(/^$prompt/);

	/^Juniper Networks is:/ && ProcessHistory("","","","# \n# $_") && next;
	ProcessHistory("","","","# $_");
    }
    return;
}

# This routine parses "show configuration"
sub ShowConfiguration {
    print STDERR "    In ShowConfiguration: $_" if ($debug);

    s/^[a-z]+@//;
    ProcessHistory("","","","# $_");
    while (<INPUT>) {
	tr/\015//d;
	next if (/^\s*$/);
        # end of config - hopefully.  juniper does not have a reliable
	# end-of-config tag.  appears to end with "\nPROMPT>", but not sure.
	if(/^$prompt/) {
	    $found_end++;
	    last;
	}

	/^database header mismatch: / && return(-1);
	/^version .*;\d+$/ && return(-1);
	if (/^(\s*)(community |trap-group )[^ ;]+(\s?[;{])$/) {
		if (defined($ENV{'NOCOMMSTR'})) {
		    $_ = "$1$2\"<removed>\"$3\n";
		}
	}
	s/(\s*authentication-key ).*$/#$1<removed>;/;
	s/^(.*\ssecret \")\$9\$.*(\".*)$/#$1<removed>$2/;
	s/ # SECRET-DATA$//;
	ProcessHistory("","","","$_");
    }
    return;
}

###
### End of real work
###

# dummy function
sub DoNothing {print STDOUT;}

# Main
%commands=(
	"show chassis clocks"		=> "ShowChassisClocks",
	"show chassis environment"	=> "ShowChassisEnvironment",
	"show chassis firmware"		=> "ShowChassisFirmware",
	"show chassis fpc detail"	=> "ShowChassisFpcDetail",
	"show chassis hardware"		=> "ShowChassisHardware",
	"show chassis routing-engine"	=> "ShowChassisRoutingEngine",
	"show chassis scb"		=> "ShowChassisSCB",
	"show chassis sfm detail"	=> "ShowChassisSCB",
	"show chassis ssb"		=> "ShowChassisSCB",
	"show chassis feb"		=> "ShowChassisSCB",
	"show system boot-messages"	=> "ShowSystemBootMessages",
	"show version"			=> "ShowVersion",
	"show configuration"		=> "ShowConfiguration"
);
@commands=(
	"show chassis clocks",
	"show chassis environment",
	"show chassis firmware",
	"show chassis fpc detail",
	"show chassis hardware",
	"show chassis routing-engine",
	"show chassis scb",
	"show chassis sfm detail",
	"show chassis ssb",
	"show chassis feb",
	"show system boot-messages",
	"show version",
	"show configuration"
);

$jnx_commands=join(";",@commands);
$cmds_regexp=join("|",@commands);

open(OUTPUT,">$host.new") || die "Can't open $host.new for writing: $!\n";
select(OUTPUT);
# make OUTPUT unbuffered
if ($debug) { $| = 1; }

if ($file) {
    print STDERR "opening file $host\n" if ($debug);
    print STDOUT "opening file $host\n" if ($log);
    open(INPUT,"< $host") || die "open failed for $host: $!\n";
} else {
    print(STDERR "executing echo jlogin -c\"$jnx_commands\" $host\n") if ($debug);
    print(STDOUT "executing echo jlogin -c\"$jnx_commands\" $host\n") if ($debug);

    if (defined($ENV{NOPIPE})) {
	system "jlogin -c \"$jnx_commands\" $host </dev/null > $host.raw" || die "jlogin failed for $host: $!\n";
	open(INPUT, "< $host.raw") || die "jlogin failed for $host: $!\n";
    } else {
	open(INPUT,"jlogin -c \"$jnx_commands\" $host </dev/null |") || die "jlogin failed for $host: $!\n";
    }

}

TOP: while(<INPUT>) {
    tr/\015//d;
    if (/^Error:/) {
	s/^.*Error:/Error:/;
	print STDOUT ("$host jlogin error: $_");
	print STDERR ("$host jlogin error: $_") if ($debug);
	$clean_run=0;
	last;
    }
    if (/System shutdown message/) {
	print STDOUT ("$host shutdown msg: $_");
	print STDERR ("$host shutdown msg: $_") if ($debug);
	$clean_run = 0;
	last;
    }
    while (/>\s*($cmds_regexp)\s*$/) {
	$cmd = $1;
	if (!defined($prompt)) {$prompt = ($_ =~ /^([^>]+>)/)[0]; }
	print STDERR ("HIT COMMAND:$_") if ($debug);
	if (! defined($commands{$cmd})) {
	    print STDERR "found unexpected command - \"$cmd\"\n";
	    $clean_run = 0;
	    last TOP;
	}
	$rval = &{$commands{$cmd}};
	delete($commands{$cmd});
	if ($rval == -1) {
	    $clean_run = 0;
	    last TOP;
	}
    }
    if (/>\s*quit/) {
	$clean_run=1;
	last;
    }
}
print STDOUT "Done jlogin: $_\n" if ($log);
# Flush History
ProcessHistory("","","","");
# Cleanup
close(INPUT);
close(OUTPUT);

if (defined($ENV{NOPIPE})) {
    unlink("$host.raw") if (! $debug);
}

# check for completeness
$commands = join(", ", keys(%commands));
if (scalar(%commands) || !$clean_run || !$found_end) {
    if (scalar(%commands)) {
	printf(STDOUT "missed cmd(s): %s\n", join(',', keys(%commands)));
	printf(STDERR "missed cmd(s): %s\n", join(',', keys(%commands))) if ($debug);
    }
    if (!$clean_run || !$found_end) {
	print STDOUT "End of run not found\n";
	print STDERR "End of run not found\n" if ($debug);
	system("/usr/bin/tail -1 $host.new");
    }
    unlink "$host.new" if (! $debug);
}