OpenSSL tsget configuration example for Alpine Linux v3

Get the default configuration file tsget for OpenSSL, optimized for Alpine Linux v3. This example configuration ensures optimal compatibility and performance for OpenSSL, making it easy to set up and adjust to meet your needs.

Find and download the configuration file here: /etc/ssl/misc/tsget.

For more configurations and setup guides, visit our related files section to further customize your system.

    #!/usr/bin/env perl
# Copyright 2002-2018 The OpenSSL Project Authors. All Rights Reserved.
# Copyright (c) 2002 The OpenTSA Project. All rights reserved.
#
# Licensed under the OpenSSL license (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-1.1.1g");

    # 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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