#! /usr/bin/perl
##
## $Id: arancid.in,v 1.14 2004/01/11 03:49:13 heas Exp $
##
## Hacked version of rancid for Huawei router 
## tested with: NE80E v3r3
## jonathantse@pacific.net.sg (Jonathan Tse)
##
## Copyright (C) 1997-2004 by Terrapin Communications, Inc.
## All rights reserved.
##
## This software may be freely copied, modified and redistributed
## without fee for non-commerical purposes provided that this license
## remains intact and unmodified with any RANCID distribution.
##
## 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.
##
## Except where noted otherwise, rancid was written by and is maintained by
## Henry Kilmer, John Heasley, Andrew Partan, Pete Whiting, and Austin Schutz.
##
#
#  RANCID - Really Awesome New Cisco confIg Differ
#           
# hwrancid - Huawei plugin for rancid
#
# usage: hwrancid [-d] [-l] [-f filename | $host]
#
use Getopt::Std;
getopts('dfl');
$log = $opt_l;
$debug = $opt_d;
$file = $opt_f;
$host = $ARGV[0];
$clean_run = 0;
$found_end = 0;
$prompt = "#";
$timeo = 90;			# clogin timeout in seconds

# 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);
}

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

	while (<INPUT>)  {
	    tr/\015//d;
            last if(/^<.*>/);
	    chop;
	}
	return(0);
}

# This routine processes the general result of "display *"
sub CommentOutput {
    print STDERR "    In CommentOutput: $_" if ($debug);

    # eat the header line
    #$junk = <INPUT>;

    # now just copy it verbatim to the history file
    while (<INPUT>) {
        tr/\015//d;
        last if(/^<.*>/);
	chop;
        #tr/\0x1b\0x5b\0x34\0x32\0x44//d;
	s/(.*)uptime.*days*.*hours*.*minutes*(.*)/$1 uptime<masked> $2/;
	s/\s*---- More ----\s*//;
	s/\033\133\064\062\104\s*\033\133\064\062\104//g;
	s/\033\133\064\062\104//g;
	ProcessHistory("","","","! $_\n");
    }
    return(0);
}

# This routine processes a "display current-configuration"
sub WriteTerm {
    print STDERR "    In WriteTerm: $_" if ($debug);

    # eat the header line
    #$junk = <INPUT>;

    # now just copy it verbatim to the history file
    while (<INPUT>) {
        tr/\015//d;
        last if(/^<.*>/);
	chop;

	s/\s*---- More ----\s*//;
	s/\033\133\064\062\104\s*\033\133\064\062\104//g;
	s/\033\133\064\062\104//g;
	if (/^return/) { 
		$found_end = 1; 
		ProcessHistory("","","","$_\n");
		return(1);
	}

	ProcessHistory("","","","$_\n");
    }
    return(0);
}

# dummy function
sub DoNothing {print STDOUT;}

# Main
%commands=(
	'display version'		=> "CommentOutput",
	'display fan'			=> "CommentOutput",
	'display power'			=> "CommentOutput",
	'display device'		=> "CommentOutput",
	'display current-configuration'	=> "WriteTerm",
);

# keys() doesnt return things in the order entered and the order of the
# cmds is important (show version first and write term last). pita
@commands=(
	"display version",
	"display fan",
	"display power",
	"display device",
	"display current-configuration",
);
$cisco_cmds=join(";",@commands);
$cmds_regexp=join("|",@commands);

open(OUTPUT,">$host.new") || die "Can't open $host.new for writing: $!\n";
select(OUTPUT);
# make OUTPUT unbuffered if debugging
if ($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 hwlogin -t $timeo -c\"$cisco_cmds\" $host\n" if ($debug);
    print STDOUT "executing hwlogin -t $timeo -c\"$cisco_cmds\" $host\n" if ($log);
    if (defined($ENV{NOPIPE})) {
	system "hwlogin -t $timeo -c \"$cisco_cmds\" $host </dev/null > $host.raw 2>&1" || die "hwlogin failed for $host: $!\n";
	open(INPUT, "< $host.raw") || die "hwlogin failed for $host: $!\n";
    } else {
	open(INPUT,"hwlogin -t $timeo -c \"$cisco_cmds\" $host </dev/null |") || die "hwlogin failed for $host: $!\n";
    }
}

ProcessHistory("","","","! RANCID-CONTENT-TYPE: huawei\n!\n");
TOP: while(<INPUT>) {
    tr/\015//d;
    if (/^<.*>quit/) {
      $clean_run=1;
      last;
    }

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

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

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