#!/usr/bin/env perl
###############################################################################
# This script is used for rest-api automation test
# Flags are used for test input:
#     -m method. Should be GET, POST, PUT, DELETE
#     -r resource
#     -t token
#     -h host
#     -u user
#     -p passwd
#     -P port (BC)
#     -d data
#     -c cert
#     -n hostname
# Flags are used for check output:
#     -o expected output
#     -l logical operator
#
# Expected result format is '{ANY:{ANY:content}}'
# These steps are used to explain how to scan result
#     step 1. go through to see if content can be found
#     step 2. compare content if found
# options are used as followed:
#    == returns 0 if found and equal, returns 1 if not found or found but not equal
#    != returns 0 if found, returns 1 if not found
#    =~ returns 0 if match, returns 1 if not match
#    !=~ returns 0 if not match, returns 1 if match
################################################################################
BEGIN
{
      $::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
}
use Getopt::Long;
use Data::Dumper;
use strict;
my $help;
my $method;
my $token;
my $resource;
my $host;
my $user;
my $passwd;
my $port;
my $data;
my $cert;
my $hostname;
my $output;
my $loperator;
my $debug;
my $defaulthash;
my $defaulthttpresult = 0;
my $outputfile = "/tmp/testrestapiresult";

if (
    !GetOptions("h|?"  => \$help,
                "m=s" => \$method,
                "t=s" => \$token,
                "r=s" => \$resource,
                "h=s" => \$host,
                "u=s" => \$user,
                "p=s" => \$passwd,
                "P=s" => \$port,
                "d=s" => \$data,
                "c=s" => \$cert,
                "n=s" => \$hostname,
                "o=s" => \$output,
                "l=s" => \$loperator,
                "debug" => \$debug,
                )
  ) {
    &usage;
    exit 1;
}

##############################################################
# check result
##############################################################
if ($output) {
    if ($method or $resource) {
        &usage;
        exit 1;
    }

    my $res = check_result($output,$loperator,$outputfile);
    print_debug( "check result runs with $output and $loperator, result is $res\n" );
    exit $res;
}
##############################################################
# return help
##############################################################
if ($help) {
    &usage;
    exit 0;
}
##############################################################
# Give default values for optional vars.
###############################################################
my $rootdir = "$::XCATROOT/share/xcat/tools/autotest";
my $resultdir = "$rootdir/result";
my $logfile = "$rootdir/result/restapitest.log"; #/opt/xcat/share/xcat/tools/autotest/result/restapitest.log
my $cert1 = "/root/ca-cert.pem";
# get token
my $gettoken = `curl -X POST -k 'https://127.0.0.1/xcatws/tokens?userName=root&password=cluster' -H Content-Type:application/json --data '{"userName":"root","password":"cluster"}' 2>/dev/null`;
my $reshash = parse_json($gettoken);
my $token1 = $$reshash{token}{id};


# get hostname
unless ($hostname) {
   $hostname = `hostname`;
    chomp($hostname);

}

# keey default test result for save
my $res = run_restapi($method, $resource, $data, "", $port, "127.0.0.1", "root", "cluster");
$defaulthash = parse_json($res);
$defaulthttpresult = check_errcode();

# debug info
print_debug( "get token $token1. \n" );
print_debug( "get hostname $hostname.\n");
print_debug( "default result is $res. \n" );
print_debug( "default resulthash is: \n" );
print_debug($defaulthash);
print_debug( "default errcode is $defaulthttpresult \n" );


####################################################
# Begin to run test cases
####################################################
my @users = ("root","wsuser", $user);
my @passwds = ("cluster","cluster", $passwd);
my @tokens = ("", $token1, $token);
my @certs = ("", $cert1, $cert);
unless ($host) {
    $host = "127.0.0.1";
}
log_me("**************begin restapi test***************");
my $i = 0;
for my $u (@users) {
    next unless($u);
    my $p = $passwds[$i];
    $i++;
    for my $t (@tokens) {
        for my $c (@certs){
            my $res = run_restapi($method, $resource, $data, $c, $port, $host, $u, $p, $t);
        if($res){
            my $reshash = parse_json($res);
            print_debug("parse curl result and got:\n");
            print_debug($reshash);
            if (%$reshash != %$defaulthash) {
                log_me("restapi test cases run different result");
                print_debug( "restapi test cases run different result with $method, $resource, $data, $c, $port, $host, $u, $p, $t\n" );
                exit 1;
            }
        }
            my $errcode = check_errcode();
            print_debug("get curl error code: $errcode\n");
            if ($errcode != $defaulthttpresult) {
                log_me("restapi test cases run different errcode");
                print_debug( "restapi test cases run different error code with $method, $resource, $data, $c, $port, $host, $u, $p, $t\n" );
                exit 1;
            }
        }
    }
}
exit  $defaulthttpresult;

################################################
# begin subroutine
################################################

##########
# usage  #
##########
sub usage
{
    print "Usage:testrestapi - Run xcat test cases.\n";
    print "  testrestapi [-?|-h]\n";
    print "  testrestapi [-m method] [-r resource] [-t tocken]\n";
    print "  [-h host] [-P port][-u user] [-p passwd]\n";
    print "  [-d data] [-c cert] [-n hostname]\n";
    print "  [-o expect_output] [-l logical_operator] [-debug]\n";
    print "  [-debug]\n";
    print "\n";
    return;
}

###############
# record log  #
###############
sub log_me
{
    my $msg = shift;
    open (LOG, ">>$logfile")
       or  return 1;
    my $date = `date`;
    print LOG "$date\: $msg\n";
}

#####################
# print debug infor #
#####################
sub print_debug
{
    my $msg = shift;
    return 0 unless($debug);
    if(ref($msg) eq 'HASH') {
        print Dumper($msg);
    } elsif( ref($msg) eq 'ARRAY') {
        print Dumper($msg);
    } else {
        print "$msg";
    }
}
#########################
# run rest-api command  #
#########################
sub run_restapi
{
    my ($m,$r,$d,$c,$p,$h,$u,$a,$t) = @_;
    my $cmd = "curl";
    $cmd .= " -X $m";
    unless ($c) {
        $cmd .= " -k ";
    }else {
        $cmd .= " --cacert $c";
    }
    if($t){
        $cmd .= " -H X-Auth-Token:$t ";
    }
    if($t or $c){
        $cmd .= " 'https://$hostname";
    } else {
        $cmd .= " 'https://$h";
    }
    if ($p) {
        $cmd .= ":$p";
    }
    $cmd .= "/xcatws";
    $cmd .= "$r?";
    unless($t){
        $cmd .= "userName=$u&password=$a'";
    }else {
        $cmd .= "'";
    }
    if($d) {
        $cmd .= " -H Content-Type:application/json --data '$d'";
    }
    $cmd .= " -D /tmp/err.log";
    log_me("Begin to run restapi test with $cmd");
    my $res = `$cmd 2>/dev/null`;
    print_debug("run curl: $cmd\n");
    print_debug("result is $res\n");
    if (!open (RESULT, ">$outputfile")) {
        log_me("wirte outputfile error");
    }
    print RESULT $res;
    close RESULT;
    return $res;
}

############################
# transfer json into hash  #
############################
sub parse_json
{
    my $input = shift;
    my %hash;
    if ($input =~ /:/) {
        # for those who look like:
        # {"networks":[{"mgtifname":"eth1","mask":"255.255.255.0"},{"mgtifname":"eth1","mask":"255.255.255.0"}]}
        if ($input =~ /^\[(.*)\]$/s) {
            my $content = $1;
            print "[:] content is $content \n" if($debug);
            parse_json($content);
        }
        # for those who look like
        # {"clustersite":{"domain":"cluster.com","master":"192.168.1.15"}}
        elsif ($input =~ /^\s*{(.*)}\s*$/s) {
            my $content = $1;
            print "{} content is $content \n" if($debug);
            parse_json($content);
        }
        # for those who look like
        # "domain":"cluster.com","master":"192.168.1.15"
        elsif ($input =~ /,/ and !($input =~ /}/)) {
            my @contents = split /,/, $input;
            my @reval;
            # record result
            foreach my $t (@contents) {
               print ", content is $t \n" if($debug);
               my $re = parse_json($t);
               push @reval, $re;
            }
            # merge hash
            foreach my $t (@reval) {
                if(ref($t) =~ "HASH") {
                    foreach my $k (keys %$t){
                        $hash{$k} = $$t{$k};
                    }
                }
            }
            return \%hash;

        }
        # for those who look like:
        # "clustersite":{"domain":"cluster.com","master":"192.168.1.15"}
        # "domain":"cluster.com"
        elsif ($input =~ /\"(\S+?)\":(.+)/s) {
            my $key = $1;
            my $value = $2;
            if ($value =~ /{/) {
                # "clustersite":{"domain":"cluster.com","master":"192.168.1.15"}
                print "{ content is $value \n" if($debug);
                $hash{$key} =  parse_json($value, $key);
                return \%hash;
            } else {
                # "domain":"cluster.com"
                $value =~ /\"(\S+)\"/;
                $hash{$key} = $1;
                return \%hash;
            }
        }
    }
    # for those who look like
    # ["10.1.255.250","192.168.200.16","192.168.200.19","192.168.200.22"]
    else {
        if ($input =~ /^\[(.*)\]/s) {
            my $content = $1;
            print "[] content is $content \n" if($debug);
            my @all = split /,/, $content;
            foreach my $n (@all) {
                $n =~ /\"(.*)\"/;
                $hash{$1} = 1;
            }
            return \%hash;
        }
    }
}

############################
# check curl running code  #
############################
sub check_errcode
{
    if(!open (ERRLOG, "</tmp/err.log")) {
        log_me("can't open err.log in tmp");
        return 1;
    }
    my $num;
    while (<ERRLOG>){
        if (/HTTP\/\w*\.*\w* (\w+) (\w+)/) {
           $num = $1;
           last;
        }
    }
    close ERRLOG;
    print_debug("can't get errorcode\n") unless($num);
    return $num;
}

############################
# check curl return result #
############################
sub check_result
{
    my $data = shift;
    my $opterator = shift;
    my $output = shift;
    if ( !open (OUTPUT, "<$output")) {
        log_me("can't read output file");
        return 1;
    }
    my $res;
    while (<OUTPUT>) {
        $res .= $_;
    }
    close OUTPUT;


    my $expects = transf_hash(parse_json($data)); # one entry
    my $actuals = transf_hash(parse_json($res)); # serval entries

    print_debug("expected result is:\n");
    print_debug($expects);
    print_debug("testcase run result is \n");
    print_debug($actuals);

    my $flag = 0;
    my %flaghash;
    my $expect = $$expects[0]; # $expect = ANY:ANY:x86_64

    my @expectvalue = split /:/, $expect; #@expectvalue = ANY, ANY, x86_64
    $flag = 0;
    foreach my $expval (@expectvalue) { # $expval = ANY
        foreach my $actual (@$actuals) { # $actual = nodetype:arch:x86_64
            if($flaghash{$actual} eq "none"){
               next;
            }
            my @actualvalue = split /:/, $actual; # @actualvalue = nodetype, arch, x86_64
            print_debug("begin to compare $expval and $actualvalue[$flag]");

            if(($expval eq $actualvalue[$flag]) or ($expval eq "ANY")) { #ANY =~ nodetype
                $flaghash{$actual} = "eq";
            } elsif (($expval =~ $actualvalue[$flag]) or ($expval eq "ANY")) {
                $flaghash{$actual} = "match";
            } else {
                $flaghash{$actual} = "none";
            }
           print_debug(", compare result is $flaghash{$actual}\n");
        }
        $flag++;
    }
    print_debug("search result is \n");
    print_debug(\%flaghash);

    if ($opterator eq "!="){
        foreach my $val (keys %flaghash) {
            if ($flaghash{$val} eq "eq") {
               print_debug("compare result: failed\n");
               return 1; # fail
            }
       }
       print_debug("compare result: succeed\n");
       return 0; #succeed
    }
    if ($opterator eq "=="){
        foreach my $val (keys %flaghash) {
            if ($flaghash{$val} eq "eq") {
                print_debug("compare result: succeed\n");
                return 0; # succeed
            }
       }
       print_debug("compare result: failed\n");
       return 1; #fail
    }

    if ($opterator eq "=~"){
        foreach my $val (keys %flaghash) {
            if ($flaghash{$val} eq "match") {
                print_debug("compare result: succeed\n");
                return 0; # succeed
            }
       }
       print_debug("compare result: failed\n");
       return 1; #fail
    }
    if ($opterator eq "!=~"){
        foreach my $val (keys %flaghash) {
            if ($flaghash{$val} eq "match") {
                print_debug("compare result: failed\n");
                return 1; # fail
            }
       }
       print_debug("compare result: succeed\n");
       return 0; #succeed
    }

}

####################################
# help to transfer hash into array #
####################################
sub find_key
{
    my $input = shift;
    my $en = shift;
    my $ou = shift;
    if( ref($input) =~ "HASH") {
        foreach my $val (keys %$input) {
           my $tmp = $$en; # keey head
            $$en .= "$val:";
            my $t1 = find_key($$input{$val}, $en, $ou);
            if ($$en == ""){
                $$en = $tmp; #restore head
            }
        }
    } else {
        $$en .= $input;
        push @$ou, $$en;
        $$en = "";  # clear entry;
    }
}

############################
# transfer hash into array #
############################
sub transf_hash
{
    my $input = shift;
    my $entry;
    my @array;
    find_key($input, \$entry, \@array);
    return \@array;
}