I'm working on an adhoc GUI so that I can easily view a bunch of data from the VMWare Perl SDK without having to setup a bunch of scripts under IIS. The basic idea is to start up the script, and have it fork two processes. One is the HTTP::Daemon web server, and then two seconds later its the Win32::IEAutomation run browser. It's not pretty, I admit, but I'm slightly comfortable with the VMPerlSDK than the VMCOMSDK. Plus I'm kind of curious to see if I can get this to work.
As far as I can tell, the program starts okay. The fork works. The little URI parser works. The only problem is whenever I try to call /quit to shutdown the server, the script explodes.
Any suggestions (aside from how this should be done with IIS and AutoIT, I know, I know) would be appreciated. Thanks!
#!/usr/bin/perl -w
use Data::Dumper;
use HTTP::Daemon;
use HTTP::Status;
use HTTP::Response;
use strict;
use warnings;
use Win32::IEAutomation;
sub MainPage {
return<<eol
<html>
<head><title>Test</title></head>
<body>
<h3>Home</h3>
<p>Quit</p>
</body>
</html>
eol
}
# Parses out web variables
sub WebParse {
my ($wstring) = #_;
my %webs = ();
# gets key/value data
my #pairs = split(/&/, $wstring);
# puts the key name into an array
foreach my $pair (#pairs) {
my ($kname, $kval) = split (/=/, $pair);
$kval =~ tr/+/ /;
$kval =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;
$webs{$kname} = $kval;
}
return(%webs);
}
sub StartServer {
my $PORT = shift;
my $ALLOWED = shift;
my $d = HTTP::Daemon->new(ReuseAddr => 1, LocalAddr => $ALLOWED, LocalPort => $PORT) || die;
# Prints a startup message
print "Please contact me at: <URL:", $d->url, ">\n";
my $xt = 0;
BLOOP: while (my $c = $d->accept) {
while (my $r = $c->get_request) {
# Handles requests with the GET or POST methods
if ($r->method =~ m/GET/i || $r->method =~ m/POST/i) {
my $uri = $r->uri; my %ENV = ();
$ENV{REQUEST_METHOD} = $r->method;
$ENV{CONTENT_TYPE} = join('; ', $r->content_type);
$ENV{CONTENT_LENGTH} = $r->content_length || '';
$ENV{SCRIPT_NAME} = $uri->path || 1;
$ENV{REMOTE_ADDR} = $c->peerhost();
if ($r->method =~ m/GET/i) {
$ENV{QUERY_STRING} = $uri->query || '';
}
elsif ($r->method =~ m/POST/i) {
$ENV{QUERY_STRING} = $r->{"_content"} || '';
}
my %q = &WebParse($ENV{QUERY_STRING});
my $res = HTTP::Response->new("200");
if ($uri =~ m/quit/i) {
$res->content("Goodbye");
$xt=1;
}
else {
$res->content(MainPage());
}
$c->send_response($res);
}
# Otherwise
else {
$c->send_error("This server only accepts GET or POST methods");
}
if ($xt == 1) {
sleep(2);
$c->force_last_request();
last BLOOP;
}
$c->close;
}
undef($c);
}
$d->close;
undef($d);
exit;
}
sub StartInterface {
my $PORT = shift;
my $ALLOWED = shift;
my $ie = Win32::IEAutomation->new(visible => 1, maximize => 1);
$ie->gotoURL("http://".$ALLOWED.":".$PORT."/");
exit;
}
# Return Status
my $STATUS = 1;
# Server port number
my $PORT = 9005;
# The server that's allowed to talk to this one
my $ALLOWED = "127.0.0.1";
my $pid = fork();
if ($pid == 0) {
StartServer($PORT, $ALLOWED);
} else {
sleep(2);
StartInterface($PORT, $ALLOWED);
}
exit;
before you close your daemon $d, shutdown the socket and tell the parent pid to quit:
$d->shutdown(2);
$d->close;
undef $d;
kill(2,getppid());
exit;
Related
I was using this in the perl script, where it is login to a couple of servers and trying to change the password for the servers through a remote host. But the problem is that the password is not getting changed on both the servers as well as i am not finding a way to check if the new passwords are passed to the servers using expect. i am posting that part of the code where it is checking for the prompt and trying to change the password.
#!/usr/bin/perl
package Session;
use strict;
use warnings;
use Expect;
use IO::Pty;
use Data::Dumper;
use Time::HiRes qw(usleep);
use Switch;
use YAML;
use feature 'say';
my $host1 = $ARGV[0];
my $host2 = $ARGV[1];
my $host1_adapter_name = $ARGV[2];
my $host2_adapter_name = $ARGV[3];
my $exp = Expect->new;
my ($selfObj) = #_;
my $str = "{$host1}\{root} # ";
my $cmdStr; my $result; my $dev_id;
my $timeout = 10;
my $min = 192;
my $range = 32;
my $host1_dev_id = _adapter($host1_adapter_name);
my $host2_dev_id = _adapter($host2_adapter_name);
my #hosts = ("$host1", "$host2");
print ("host2 name is=$host2------");
foreach my $n (#hosts)
{
print ("value of n is $n\n");
if ( $n eq $host1 )
{
_login($n,$host1_dev_id);
}
if ( $n eq $host2)
{
print ("inside 2nd if-----\n");
_login($n,$host2_dev_id);
}
}
sub _login
{
my ($host,$host_dev_id) = #_;
my $exit = 1;
$exp->raw_pty(1);
$exp = Expect->spawn("telnet $host") or die "unable to connect , Please check the connection & retry again: $!\n";
if (!defined($exp))
{
print "Please check the connection & retry again\n";
return -1;
}
`sleep 2 `;
$exp->expect($timeout,
[
qr'[lL]ogin:[\s]?[a]?[s]?[\s]?$',
sub
{
$exp->send("root\r");
`sleep 3 `;
exp_continue;
}
],
[
qr'[pP]assword:[\s]?$',
sub
{
$exp->send("That11NeverWork!\r");
exp_continue;
}
],
[
qr '[#>:][\s]?$',
sub {
$cmdStr = "passwd\r";
$result =_run_cmd($cmdStr);
qr'root\'s New password:\s*';
$exp->send("raym0nd24");
qr'Enter the new password again:\s*';
$exp->send("raym0nd24");
# $exp->send('passwd:\s*',5);
$exit = 0;
exp_continue;
}
],
[
eof =>
sub
{
print("FileName : Session.pm , ERROR: premature EOF in command execution.\n");
}
],
'-re', qr'[#$>:]\s?$', # wait for shell prompt, then exit expect
);
}
#############################################################
#############################################################################
sub _adapter
{
my ($adapter_name) = #_;
print "Adapter name: $adapter_name\n";
chomp($adapter_name);
switch($adapter_name){
case "AUSTIN" {$dev_id="e414571614102004"}
case "CX5" {$dev_id="b315191014103506"}
case "CX4" {$dev_id="b31513101410f704"}
case "CX4_EG10" {$dev_id="b315151014101f06"}
case "CX4_EG25" {$dev_id="b315151014101e06"}
case "CX3" {$dev_id="RoCE"}
case "CX2" {$dev_id="b315506714106104"}
case "CX3_PRO" {$dev_id="RoCE"}
case "CX3_PRO1" {$dev_id="b31507101410e704"}
case "HOUSTON_LR" {$dev_id="df1020e214104004"}
case "HOUSTON_SR" {$dev_id="df1020e214100f04"}
case "HOUSTON_Cu" {$dev_id="df1020e214103d04"}
case "SHINER_S" {$dev_id="e4148a1614109304"}
case "SHINER_T" {$dev_id="e4148e1614109204"}
case "SLATE_SR" {$dev_id="df1020e21410e304"}
case "SLATE_CU" {$dev_id="df1020e21410e404"}
case "EVERGLADES" {$dev_id="b315151014101e06"}
else { print "Adapter not in list\n"}
}
return $dev_id;
}
#######################################################################################
##########################################################
sub _run_cmd
{
my $output; my $output1;
my ($cmdStr) = #_;
$exp->send($cmdStr ."\r");
$exp->expect(21, '-re', $str);
$output = $exp->exp_before();
$exp->clear_accum();
my #PdAt_val = split("\r?\n", $output);
foreach my $line1 (#PdAt_val)
{
chomp($line1);
if ( $line1 =~ /(\(\d+\))(\s*root\s*\#\s*)/)
{
if ( $1 =~ /\((\d+)\)/)
{
if ($1 != 0)
{
print("*************** Command $cmdStr didn't ran sucessfully ***************\n");
exit;
}
}
}
}
return $output;
}
######################################################################
There are individual solutions for different systems. So some systems got from their god the must have highlevel restrictions. So the regular says, that you cant login as root directly. To step up the long way to the stage you can use sudo or su. I didnt see that mind in your lines.
# The simpliest way is to use what you have!
sub passwd
{
my $user = #_[0];
my $password = #_[1];
#
# as root
my $execline = qq~passwd $user:$password~;
#
# as root with second password
my $execline = qq~passwd $user:$password\n$password~;
#
# for microsoft certified ubuntu noobs, kidding mint's
my $execline = qq~sudo $password && passwd $user:$password~;
#
# for apple greyed, debian nerds, solaris freaks
my $execline = qq~su $password && passwd $user:$password~;
#
my $return = system("$execline");
}
print &passwd("root","the magical word");
#
# elseif read this.url([to get the higher experience][1]);
[1]: https://stackoverflow.com/questions/714915/using-the-passwd-command-from-within-a-shell-script
I make the scanner using perl, but when i try to test the script i got blank results on the some engine, didn't give me results, may someone help me to check the script where line is wrong writing in perl?
Thanks
sub google() {
my #list;
my $key = $_[0];
for (my $i=0; $i<=1000; $i+=100){
my $search = ("http://www.google.com/search?q=".key($key)."&num=100&filter=0&start=".$i);
my $res = search_engine_query($search);
while ($res =~ m/<a href=\"?http:\/\/([^>\"]*)\//g) {
my $link = $1;
if ($link !~ /google/){
my #grep = links($link);
push(#list,#grep);
}
}
}
return #list;
}
sub search_engine() {
my (#total,#clean);
my $chan = $_[0];
my $bug = $_[1];
my $dork = $_[2];
my $engine = $_[3];
my $logo = $_[4];
if ($engine eq "GooGLe") { my #google = google($dork); push(#total,#google); }
if ($engine eq "AllTheWeb") { my #alltheweb = alltheweb($dork); push(#total,#alltheweb); }
if ($engine eq "Bing") { my #bing = bing($dork); push(#total,#bing); }
if ($engine eq "ALtaViSTa") { my #altavista = altavista($dork); push(#total,#altavista); }
if ($engine eq "AsK") { my #ask = ask($dork); push(#total,#ask); }
if ($engine eq "UoL") { my #uol = uol($dork); push(#total,#uol); }
if ($engine eq "YahOo") { my #yahoo = yahoo($dork); push(#total,#yahoo); }
#clean = clean(#total);
&msg("$chan","$logo(7#2$engine15)12 Total:4 (".scalar(#total).")12 Clean:4 (".scalar(#clean).")");
return #clean;
}
if ($engine =~ /google/i) {
if (my $pid = fork) { waitpid($pid, 0); }
else { if (fork) { exit; } else {
&lfc($chan,$bug,$dork,"GooGLe");
} exit; }
}
You can download n0body Scanner at here.
For one thing, you are using a zero-argument prototype for a function that you pass an argument to. Don't do that.
For another, are you inspecting the response whenever you are unhappy with the results? Is the response something other than 200? Does the response include an error message from the search engine?
Based on this line alone:
&msg("$chan",
"$logo(7#2$engine15)12 Total:4 (".scalar(#total).")12 Clean:4 (".scalar(#clean).")");
I also conclude that you're not using use strict and use warnings. Do that.
I am working on a very large, very old "historically grown" codebase. In the past, there were often people thinking "Oh, I may need this and that module, so I just include it...", and later, people often "cached" Data inside of modules ("use ThisAndThat" needing a few seconds to load some hundred MB from DB to RAM, yeah, its really a stupid Idea, we are working on that too) and so, often, we have a small module use'ing like 20 or 30 modules, from who 90% are totally unused in the source itself, and, because of "caching" in several use'd submodules, modules tend to take up one minute to load or even more, which is, of course, not acceptable.
So, Im trying to get that done better. Right now, my way is looking through all the modules, understanding them as much as possible and I look at all the modules including them and see whether they are needed or not.
Is there any easier way? I mean: There are functions returning all subs a module has like
...
return grep { defined &{"$module\::$_"} } keys %{"$module\::"}
, so, aint there any simple way to see which ones are exported by default and which ones come from where and are used in the other modules?
A simple example is Data::Dumper, which is included in nearly every file, even, when all debug-warns and prints and so on arent in the script anymore. But still the module has to load Data::Dumper.
Is there any simple way to check that?
Thanks!
The following code could be part of your solution - it will show you which symbols are imported for each instance of use:
package traceuse;
use strict;
use warnings;
use Devel::Symdump;
sub import {
my $class = shift;
my $module = shift;
my $caller = caller();
my $before = Devel::Symdump->new($caller);
my $args = \#_;
# more robust way of emulating use?
eval "package $caller; require $module; $module\->import(\#\$args)";
my $after = Devel::Symdump->new($caller);
my #added;
my #after_subs = $after->functions;
my %before_subs = map { ($_,1) } $before->functions;
for my $k (#after_subs) {
push(#added, $k) unless $before_subs{$k};
}
if (#added) {
warn "using module $module added: ".join(' ', #added)."\n";
} else {
warn "no new symbols from using module $module\n";
}
}
1;
Then just replace "use module ..." with "use traceuse module ...", and you'll get a list of the functions that were imported.
Usage example:
package main;
sub foo { print "debug: foo called with: ".Dumper(\#_)."\n"; }
use traceuse Data::Dumper;
This will output:
using module Data::Dumper added: main::Dumper
i.e. you can tell which functions were imported in robust way. And you can easily extend this to report on imported scalar, array and hash variables - check the docs on Devel::Symdump.
Determine which functions are actually used is the other half of the equation. For that you might be able to get away with a simple grep of your source code - i.e. does Dumper appear in the module's source code that's not on a use line. It depends on what you know about your source code.
Notes:
there may be a module which does what traceuse does - I haven't checked
there might be a better way to emulate "use" from another package
I kind of got of got it to work with PPI. It looks like this:
#!/usr/local/bin/perl
use strict;
use warnings;
use Data::Dumper;
use Term::ANSIColor;
use PPI;
use PPI::Dumper;
my %doneAlready = ();
$" = ", ";
our $maxDepth = 2;
my $showStuffOtherThanUsedOrNot = 0;
parse("/modules/Test.pm", undef, undef, 0);
sub parse {
my $file = shift;
my $indent = shift || 0;
my $caller = shift || $file;
my $depth = shift || 0;
if($depth && $depth >= $maxDepth) {
return;
}
return unless -e $file;
if(exists($doneAlready{$file}) == 1) {
return;
}
$doneAlready{$file} = 1;
my $skript = PPI::Document->new($file);
my #included = ();
eval {
foreach my $x (#{$skript->find("PPI::Statement::Include")}) {
foreach my $y (#{$x->{children}}) {
push #included, $y->{content} if (ref $y eq "PPI::Token::Word" && $y->{content} !~ /^(use|vars|constant|strict|warnings|base|Carp|no)$/);
}
}
};
my %double = ();
print "===== $file".($file ne $caller ? " (Aufgerufen von $caller)" : "")."\n" if $showStuffOtherThanUsedOrNot;
if($showStuffOtherThanUsedOrNot) {
foreach my $modul (#included) {
next unless -e createFileName($modul);
my $is_crap = ((exists($double{$modul})) ? 1 : 0);
print "\t" x $indent;
print color("blink red") if($is_crap);
print $modul;
print color("reset") if($is_crap);
print "\n";
$double{$modul} = 1;
}
}
foreach my $modul (#included) {
next unless -e createFileName($modul);
my $anyUsed = 0;
my $modulDoc = parse(createFileName($modul), $indent + 1, $file, $depth + 1);
if($modulDoc) {
my #exported = getExported($modulDoc);
print "Exported: \n" if(scalar #exported && $showStuffOtherThanUsedOrNot);
foreach (#exported) {
print(("\t" x $indent)."\t");
if(callerUsesIt($_, $file)) {
$anyUsed = 1;
print color("green"), "$_, ", color("reset") if $showStuffOtherThanUsedOrNot;
} else {
print color("red"), "$_, ", color("reset") if $showStuffOtherThanUsedOrNot;
}
print "\n" if $showStuffOtherThanUsedOrNot;
}
print(("\t" x $indent)."\t") if $showStuffOtherThanUsedOrNot;
print "Subs: " if $showStuffOtherThanUsedOrNot;
foreach my $s (findAllSubs($modulDoc)) {
my $isExported = grep($s eq $_, #exported) ? 1 : 0;
my $rot = callerUsesIt($s, $caller, $modul, $isExported) ? 0 : 1;
$anyUsed = 1 unless $rot;
if($showStuffOtherThanUsedOrNot) {
print color("red") if $rot;
print color("green") if !$rot;
print "$s, ";
print color("reset");
}
}
print "\n" if $showStuffOtherThanUsedOrNot;
print color("red"), "=========== $modul wahrscheinlich nicht in Benutzung!!!\n", color("reset") unless $anyUsed;
print color("green"), "=========== $modul in Benutzung!!!\n", color("reset") if $anyUsed;
}
}
return $skript;
}
sub createFileName {
my $file = shift;
$file =~ s#::#/#g;
$file .= ".pm";
$file = "/modules/$file";
return $file;
}
sub getExported {
my $doc = shift;
my #exported = ();
eval {
foreach my $x (#{$doc->find("PPI::Statement")}) {
my $worthATry = 0;
my $isMatch = 0;
foreach my $y (#{$x->{children}}) {
$worthATry = 1 if(ref $y eq "PPI::Token::Symbol");
if($y eq '#EXPORT') {
$isMatch = 1;
} elsif($isMatch && ref($y) ne "PPI::Token::Whitespace" && ref($y) ne "PPI::Token::Operator" && $y->{content} ne ";") {
push #exported, $y->{content};
}
}
}
};
my #realExported = ();
foreach (#exported) {
eval "\#realExported = $_";
}
return #realExported;
}
sub callerUsesIt {
my $subname = shift;
my $caller = shift;
my $namespace = shift || undef;
my $isExported = shift || 0;
$caller = `cat $caller`;
unless($namespace) {
return 1 if($caller =~ /\b$subname\b/);
} else {
$namespace = createPackageName($namespace);
my $regex = qr#$namespace(?:::|->)$subname#;
if($caller =~ $regex) {
return 1;
}
}
return 0;
}
sub findAllSubs {
my $doc = shift;
my #subs = ();
eval {
foreach my $x (#{$doc->find("PPI::Statement::Sub")}) {
my $foundName = 0;
foreach my $y (#{$x->{children}}) {
no warnings;
if($y->{content} ne "sub" && ref($y) eq "PPI::Token::Word") {
push #subs, $y;
}
use warnings;
}
}
};
return #subs;
}
sub createPackageName {
my $name = shift;
$name =~ s#/modules/##g;
$name =~ s/\.pm$//g;
$name =~ s/\//::/g;
return $name;
}
Its really ugly and maybe not 100% working, but it seems, with the tests that Ive done now, that its good for a beginning.
Im trying to emulate a TCP Server on the same PC where the app is running.
I dont know if it can be done in Perl because im not very experienced.
With the code bellow the first reply is working but i dont know how to implement the second.
#!/usr/bin/perl -w
use IO::Socket::INET;
use strict;
my $socket = IO::Socket::INET->new('LocalPort' => '3000',
'Proto' => 'tcp',
'Listen' => SOMAXCONN)
or die "Can't create socket ($!)\n";
print "Server listening\n";
while (my $client = $socket->accept) {
my $name = gethostbyaddr($client->peeraddr, AF_INET);
my $port = $client->peerport;
while (<$client>) {
print "$_";
print $client "RESPONSE1";
}
close $client
or die "Can't close ($!)\n";
}
die "Can't accept socket ($!)\n";
EDIT: Thank you guys for the imput, i ended up with php done it and its working, yay!
Use Net::Server for the connection, and a variable in the sub to keep the current state ($state in this code); something like this:
package MyServer;
use base qw/Net::Server/;
use strict;
use warnings;
sub process_request {
my $self = shift;
my $state = 0;
while (<STDIN>) {
s/\r?\n$//; # like chomp but for crlf too
if ($state == 0 and $_ eq 'data1') {
print "> okay1\n";
$state++;
} elsif ($state == 1 and $_ eq 'data2') {
print "> okay2\n";
$state++;
} else {
last if $state == 2;
$state = 0;
}
}
}
my $port = shift || 3000;
MyServer->run( port => $port );
The example in the Net::Server POD suggests using an alarm to timeout connections, which might be appropriate here. The code above does the following:
$ nc localhost 3000
data1
> okay1
data2
> okay2
data3
$
And if you need to move to a forking / preforking / non-blocking / co-routine driven system, there's a Net::Server personality for that.
"ready to go" code:
package MyServer;
use base qw/Net::Server/;
use strict;
use warnings;
sub process_request {
my $self = shift;
my $state = 0;
$| = 1;
binmode *STDIN;
while (read(*STDIN, local $_, 3 )) {
if ($state == 0 and $_ eq "\x{de}\x{c0}\x{ad}") {
print "\x{c4}\x{1a}\x{20}\x{de}";
$state++;
} elsif ($state == 1 and $_ eq "\x{18}\x{c0}\x{0a}") {
print "\x{11}\x{01}\x{73}\x{93}";
$state++;
last;
}
}
}
my $port = shift || 3000;
MyServer->run( port => $port );
It seems to me process_request sub doesn't work correctly when a low port is set (in my situation, port 23). In particular only with low port, while parsing data input, the first request contains additional chars (but it's all ok with subsequent requests).
Have you a tips? Thank you
I'm writing a quick script to test the failures and interpreted traffic of a load balancer. I want it to keep trying to make connections after it can't connect to one host or another. My current script doesn't look like it's executing the eval block in the mkcnct sub, and I can't figure out why. Can anyone spot what I'm doing wrong?
#!/usr/bin/perl
use strict;
use Net::HTTP;
use Getopt::Std;
my %opts;
getopts('ht:',\%opts);
my #hostlist ("www.foo.com","www1.foo.com","www2.foo.com");
my $timeout;
if ($opts{t} =~ /\d+/) {
$timeout = $opts{t} + time();
} else {
$timeout = 3600 + time();
}
while ($timeout < time()) {
foreach my $host (#hostlist) {
my $cnct = mkcnct($host);
if ($cnct) { mkreq($cnct) };
}
}
sub mkreq {
my $cnct = shift;
my $time = gettime();
my $out;
$cnct->write_request(GET => "/index.html");
($out->{code},$out->{message},%{$out->{headers}}) = $cnct->read_response_headers;
printf "%s\t%s - Size %d\tLast modified %s\n", $time, $out->{message}, $out->{headers}{'Content-Length'}, $out->{headers}{'Last-Modified'};
$out = "";
$cnct->write_request(GET => "/pki/ca.crl");
($out->{code},$out->{message},%{$out->{headers}}) = $cnct->read_response_headers;
printf "%s\t%s - Size %d\tLast modified %s\n", $time, $out->{message}, $out->{headers}{'Content-Length'}, $out->{headers}{'Last-Modified'};
}
sub mkcnct {
my $host = shift;
my $time = gettime();
my $cnct;
eval{
local $SIG{ALRM} = sub { print "$time\tCannot connect to $host\n"};
alarm(2);
$cnct = Net::HTTP->new(Host => $host);
alarm(0);
};
alarm(0);
return($cnct);
}
sub gettime {
my #time = localtime(time);
my $out;
$out = sprintf "%d\/%d\/%d %d:%d", ($time[4] + 1), $time[3], ($time[5] % 100 ), $time[2], $time[1];
return($out);
}
Try replacing return($cnct); with return $cnct; in mkcnct. You might want to revue the docs on returning scalars and lists