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#!/usr/bin/perl
# Copyright 2002-2021 The OpenSSL Project Authors. All Rights Reserved.
# Copyright (c) 2002 The OpenTSA Project. All rights reserved.
#
# Licensed under the Apache License 2.0 (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
use strict;
use IO::Handle;
use Getopt::Std;
use File::Basename;
use WWW::Curl::Easy;
use vars qw(%options);
# Callback for reading the body.
sub read_body {
my ($maxlength, $state) = @_;
my $return_data = "";
my $data_len = length ${$state->{data}};
if ($state->{bytes} < $data_len) {
$data_len = $data_len - $state->{bytes};
$data_len = $maxlength if $data_len > $maxlength;
$return_data = substr ${$state->{data}}, $state->{bytes}, $data_len;
$state->{bytes} += $data_len;
}
return $return_data;
}
# Callback for writing the body into a variable.
sub write_body {
my ($data, $pointer) = @_;
${$pointer} .= $data;
return length($data);
}
# Initialise a new Curl object.
sub create_curl {
my $url = shift;
# Create Curl object.
my $curl = WWW::Curl::Easy::new();
# Error-handling related options.
$curl->setopt(CURLOPT_VERBOSE, 1) if $options{d};
$curl->setopt(CURLOPT_FAILONERROR, 1);
$curl->setopt(CURLOPT_USERAGENT,
"OpenTSA tsget.pl/openssl-3.0.2");
# Options for POST method.
$curl->setopt(CURLOPT_UPLOAD, 1);
$curl->setopt(CURLOPT_CUSTOMREQUEST, "POST");
$curl->setopt(CURLOPT_HTTPHEADER,
["Content-Type: application/timestamp-query",
"Accept: application/timestamp-reply,application/timestamp-response"]);
$curl->setopt(CURLOPT_READFUNCTION, \&read_body);
$curl->setopt(CURLOPT_HEADERFUNCTION, sub { return length($_[0]); });
# Options for getting the result.
$curl->setopt(CURLOPT_WRITEFUNCTION, \&write_body);
# SSL related options.
$curl->setopt(CURLOPT_SSLKEYTYPE, "PEM");
$curl->setopt(CURLOPT_SSL_VERIFYPEER, 1); # Verify server's certificate.
$curl->setopt(CURLOPT_SSL_VERIFYHOST, 2); # Check server's CN.
$curl->setopt(CURLOPT_SSLKEY, $options{k}) if defined($options{k});
$curl->setopt(CURLOPT_SSLKEYPASSWD, $options{p}) if defined($options{p});
$curl->setopt(CURLOPT_SSLCERT, $options{c}) if defined($options{c});
$curl->setopt(CURLOPT_CAINFO, $options{C}) if defined($options{C});
$curl->setopt(CURLOPT_CAPATH, $options{P}) if defined($options{P});
$curl->setopt(CURLOPT_RANDOM_FILE, $options{r}) if defined($options{r});
$curl->setopt(CURLOPT_EGDSOCKET, $options{g}) if defined($options{g});
# Setting destination.
$curl->setopt(CURLOPT_URL, $url);
return $curl;
}
# Send a request and returns the body back.
sub get_timestamp {
my $curl = shift;
my $body = shift;
my $ts_body;
local $::error_buf;
# Error-handling related options.
$curl->setopt(CURLOPT_ERRORBUFFER, "::error_buf");
# Options for POST method.
$curl->setopt(CURLOPT_INFILE, {data => $body, bytes => 0});
$curl->setopt(CURLOPT_INFILESIZE, length(${$body}));
# Options for getting the result.
$curl->setopt(CURLOPT_FILE, \$ts_body);
# Send the request...
my $error_code = $curl->perform();
my $error_string;
if ($error_code != 0) {
my $http_code = $curl->getinfo(CURLINFO_HTTP_CODE);
$error_string = "could not get timestamp";
$error_string .= ", http code: $http_code" unless $http_code == 0;
$error_string .= ", curl code: $error_code";
$error_string .= " ($::error_buf)" if defined($::error_buf);
} else {
my $ct = $curl->getinfo(CURLINFO_CONTENT_TYPE);
if (lc($ct) ne "application/timestamp-reply"
&& lc($ct) ne "application/timestamp-response") {
$error_string = "unexpected content type returned: $ct";
}
}
return ($ts_body, $error_string);
}
# Print usage information and exists.
sub usage {
print STDERR "usage: $0 -h <server_url> [-e <extension>] [-o <output>] ";
print STDERR "[-v] [-d] [-k <private_key.pem>] [-p <key_password>] ";
print STDERR "[-c <client_cert.pem>] [-C <CA_certs.pem>] [-P <CA_path>] ";
print STDERR "[-r <file:file...>] [-g <EGD_socket>] [<request>]...\n";
exit 1;
}
# ----------------------------------------------------------------------
# Main program
# ----------------------------------------------------------------------
# Getting command-line options (default comes from TSGET environment variable).
my $getopt_arg = "h:e:o:vdk:p:c:C:P:r:g:";
if (exists $ENV{TSGET}) {
my @old_argv = @ARGV;
@ARGV = split /\s+/, $ENV{TSGET};
getopts($getopt_arg, \%options) or usage;
@ARGV = @old_argv;
}
getopts($getopt_arg, \%options) or usage;
# Checking argument consistency.
if (!exists($options{h}) || (@ARGV == 0 && !exists($options{o}))
|| (@ARGV > 1 && exists($options{o}))) {
print STDERR "Inconsistent command line options.\n";
usage;
}
# Setting defaults.
@ARGV = ("-") unless @ARGV != 0;
$options{e} = ".tsr" unless defined($options{e});
# Processing requests.
my $curl = create_curl $options{h};
undef $/; # For reading whole files.
REQUEST: foreach (@ARGV) {
my $input = $_;
my ($base, $path) = fileparse($input, '\.[^.]*');
my $output_base = $base . $options{e};
my $output = defined($options{o}) ? $options{o} : $path . $output_base;
STDERR->printflush("$input: ") if $options{v};
# Read request.
my $body;
if ($input eq "-") {
# Read the request from STDIN;
$body = <STDIN>;
} else {
# Read the request from file.
open INPUT, "<" . $input
or warn("$input: could not open input file: $!\n"), next REQUEST;
$body = <INPUT>;
close INPUT
or warn("$input: could not close input file: $!\n"), next REQUEST;
}
# Send request.
STDERR->printflush("sending request") if $options{v};
my ($ts_body, $error) = get_timestamp $curl, \$body;
if (defined($error)) {
die "$input: fatal error: $error\n";
}
STDERR->printflush(", reply received") if $options{v};
# Write response.
if ($output eq "-") {
# Write to STDOUT.
print $ts_body;
} else {
# Write to file.
open OUTPUT, ">", $output
or warn("$output: could not open output file: $!\n"), next REQUEST;
print OUTPUT $ts_body;
close OUTPUT
or warn("$output: could not close output file: $!\n"), next REQUEST;
}
STDERR->printflush(", $output written.\n") if $options{v};
}
$curl->cleanup();
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