X-Git-Url: https://git.rapsys.eu/acme/blobdiff_plain/ea6cf63c91a3b7482193c9c7faf8a169fcdd05ea..84bd2568284045bcc807fc87f1f9dbc2b0cddd33:/acme.pm?ds=inline

diff --git a/acme.pm b/acme.pm
index b3629f9..db1c6d4 100644
--- a/acme.pm
+++ b/acme.pm
@@ -1,3 +1,20 @@
+# This file is part of Acmepl
+#
+# Acmepl is is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Copyright (C) 2016 - 2017 Raphaël Gertz <acmepl@rapsys.eu>
+
 # acme package
 package acme;
 
@@ -8,23 +25,23 @@ use warnings;
 # Symbol export
 use Exporter;
 our @ISA = qw(Exporter);
+our @EXPORT_OK = qw(DS CERT_DIR KEY_DIR REQUEST_CSR ACCOUNT_KEY SERVER_KEY SERVER_CRT CONFIG);
 
 # Load dependancies
 use Carp qw(carp confess);
 use Date::Parse qw(str2time);
-use DateTime;
 use Digest::SHA qw(sha256_base64);
 use Email::Valid;
 use File::Path qw(make_path);
 use File::Slurp qw(read_file write_file);
 use File::Temp; # qw( :seekable );
 use IPC::System::Simple qw(capturex);
-use JSON qw(encode_json decode_json);
+use JSON qw(from_json to_json);
 use LWP;
 use MIME::Base64 qw(encode_base64url encode_base64);
 use Net::Domain::TLD;
-use Tie::IxHash;
 use POSIX qw(EXIT_FAILURE);
+use Tie::IxHash;
 
 # Documentation links
 #XXX: see https://letsencrypt.github.io/acme-spec/ (probably based on https://ietf-wg-acme.github.io/acme/)
@@ -67,18 +84,18 @@ use constant {
 	ACME_CERT => 'https://letsencrypt.org/certs/lets-encrypt-x3-cross-signed.pem',
 	ACME_DIR => 'https://acme-staging.api.letsencrypt.org/directory',
 	ACME_PROD_DIR => 'https://acme-v01.api.letsencrypt.org/directory',
-	ACME_TERMS => 'https://letsencrypt.org/documents/LE-SA-v1.0.1-July-27-2015.pdf',
+	ACME_TERMS => 'https://letsencrypt.org/documents/LE-SA-v1.1.1-August-1-2016.pdf',
 
 	# Version
-	VERSION => 'v0.3'
+	VERSION => 'v0.6',
+
+	# Config
+	CONFIG => '/etc/acmepl/config'
 };
 
 # User agent object
 our $ua;
 
-# Debug
-our $_debug = 0;
-
 # Strerr backup
 our $_stderr;
 
@@ -107,7 +124,7 @@ tie(%{$jwk{jwk}{jwk}}, 'Tie::IxHash', e => undef, kty => uc(KEY_TYPE), n => unde
 # Constructor
 sub new {
 	# Extract params
-	my ($class, $mail, @domains) = @_;
+	my ($class, $mail, $debug, $prod, @domains) = @_;
 
 	# Create self hash
 	my $self = {};
@@ -115,13 +132,19 @@ sub new {
 	# Link self to package
 	bless($self, $class);
 
+	# Save debug
+	$self->{debug} = $debug;
+
+	# Save prod
+	$self->{prod} = $prod;
+
 	# Add extra check to mail validity
 	#XXX: mxcheck fail if there is only a A record on the domain
 	my $ev = Email::Valid->new(-fqdn => 1, -tldcheck => 1, -mxcheck => 1);
 
 	# Show error if check fail
 	if (! defined $ev->address($mail)) {
-		map { carp 'failed check: '.$_ if ($_debug) } $ev->details();
+		map { carp 'failed check: '.$_ if ($self->{debug}) } $ev->details();
 		confess 'Email::Valid->address failed';
 	}
 
@@ -165,14 +188,14 @@ sub new {
 
 # Prepare environement
 sub prepare {
-	my ($self, $prod) = @_;
+	my ($self) = @_;
 
 	# Create all paths
-	make_path(CERT_DIR, KEY_DIR, PENDING_DIR.'/'.$self->{mail}.'.'.($prod ? 'prod' : 'staging'), {error => \my $err});
+	make_path(CERT_DIR, KEY_DIR, PENDING_DIR.'/'.$self->{mail}.'.'.($self->{prod} ? 'prod' : 'staging'), {error => \my $err});
 	if (@$err) {
 		map {
 			my ($file, $msg) = %$_;
-			carp ($file eq '' ? '' : $file.': ').$msg if ($_debug);
+			carp ($file eq '' ? '' : $file.': ').$msg if ($self->{debug});
 		} @$err;
 		confess 'make_path failed';
 	}
@@ -240,7 +263,7 @@ sub genKeys {
 
 	# Store thumbprint
 	#XXX: convert base64 to base64 url
-	$self->{account}{thumbprint} = (sha256_base64(encode_json($self->{account}{jwk}{jwk})) =~ s/=+\z//r) =~ tr[+/][-_]r;
+	$self->{account}{thumbprint} = (sha256_base64(to_json($self->{account}{jwk}{jwk})) =~ s/=+\z//r) =~ tr[+/][-_]r;
 }
 
 # Generate certificate request
@@ -269,13 +292,13 @@ sub genCsr {
 
 # Directory call
 sub directory {
-	my ($self, $prod) = @_;
+	my ($self) = @_;
 
 	# Set time
 	my $time = time;
 
 	# Set directory
-	my $dir = $prod ? ACME_PROD_DIR : ACME_DIR;
+	my $dir = $self->{prod} ? ACME_PROD_DIR : ACME_DIR;
 
 	# Create a request
 	my $req = HTTP::Request->new(GET => $dir.'?'.$time);
@@ -292,7 +315,7 @@ sub directory {
 	$self->{nonce} = $res->headers->{'replay-nonce'};
 
 	# Merge uris in self content
-	%$self = (%$self, %{decode_json($res->content)});
+	%$self = (%$self, %{from_json($res->content)});
 }
 
 # Post request
@@ -300,10 +323,10 @@ sub _post {
 	my ($self, $uri, $payload) = @_;
 
 	# Protected field
-	my $protected = encode_base64url(encode_json({nonce => $self->{nonce}}));
+	my $protected = encode_base64url(to_json({nonce => $self->{nonce}}));
 
 	# Payload field
-	$payload = encode_base64url(encode_json($payload));
+	$payload = encode_base64url(to_json($payload));
 
 	# Sign temp file
 	my $stf = File::Temp->new();
@@ -321,7 +344,7 @@ sub _post {
 	my $req = HTTP::Request->new(POST => $uri);
 	
 	# Set new-reg request content
-	$req->content(encode_json({
+	$req->content(to_json({
 		header => $self->{account}{jwk},
 		protected => $protected,
 		payload => $payload,
@@ -356,11 +379,11 @@ sub _dnsCheck {
 
 	# Check if we get dns answer
 	unless(my $rep = $res->search($domain, 'TXT')) {
-		carp 'TXT record search for '.$domain.' failed' if ($_debug);
+		carp 'TXT record search for '.$domain.' failed' if ($self->{debug});
 		return;
 	} else {
 		unless (scalar map { $_->type eq 'TXT' && $_->txtdata =~ /^$signature$/ ? 1 : (); } $rep->answer) {
-			carp 'TXT record recursive search for '.$domain.' failed' if ($_debug);
+			carp 'TXT record recursive search for '.$domain.' failed' if ($self->{debug});
 			return;
 		}
 	}
@@ -375,18 +398,37 @@ sub _httpCheck {
 	# Create a request
 	my $req = HTTP::Request->new(GET => 'http://'.$domain.'/.well-known/acme-challenge/'.$token);
 
+	# Load config if available
+	my $config = undef;
+	if (
+		#XXX: use eval to workaround a fatal in from_json
+		defined eval {
+			# Check that file exists
+			-f CONFIG &&
+			# Read it
+			($config = read_file(CONFIG)) &&
+			# Decode it
+			($config = from_json($config)) &&
+			# Check defined
+			$config->{thumbprint}
+		}
+	) {
+		# Try to write thumbprint
+		write_file($config->{thumbprint}, $self->{account}{thumbprint});
+	}
+
 	# Get request
 	my $res = $ua->request($req);
 
 	# Handle error
 	unless ($res->is_success) {
-		carp 'GET http://'.$domain.'/.well-known/acme-challenge/'.$token.' failed: '.$res->status_line if ($_debug);
+		carp 'GET http://'.$domain.'/.well-known/acme-challenge/'.$token.' failed: '.$res->status_line if ($self->{debug});
 		return;
 	}
 
 	# Handle invalid content
 	unless($res->content =~ /^$token.$self->{account}{thumbprint}\s*$/) {
-		carp 'GET http://'.$domain.'/.well-known/acme-challenge/'.$token.' content match failed: /^'.$token.'.'.$self->{account}{thumbprint}.'\s*$/ !~ '.$res->content if ($_debug);
+		carp 'GET http://'.$domain.'/.well-known/acme-challenge/'.$token.' content match failed: /^'.$token.'.'.$self->{account}{thumbprint}.'\s*$/ !~ '.$res->content if ($self->{debug});
 		return;
 	}
 
@@ -426,7 +468,7 @@ sub register {
 
 # Authorize domains
 sub authorize {
-	my ($self, $prod) = @_;
+	my ($self) = @_;
 
 	# Create challenges hash
 	%{$self->{challenges}} = ();
@@ -440,22 +482,21 @@ sub authorize {
 		my $content = undef;
 
 		# Init file
-		my $file = PENDING_DIR.'/'.$self->{mail}.'.'.($prod ? 'prod' : 'staging').'/'.$_;
+		my $file = PENDING_DIR.'/'.$self->{mail}.'.'.($self->{prod} ? 'prod' : 'staging').'/'.$_;
 
 		# Load auth request content or post a new one
 		#TODO: add more check on cache file ???
 		if (
-			#XXX: use eval to workaround a fatal in decode_json
+			#XXX: use eval to workaround a fatal in from_json
 			! defined eval {
 				# Check that file exists
 				-f $file &&
 				# Read it
 				($content = read_file($file)) &&
 				# Decode it
-				($content = decode_json($content)) &&
-				# Check expiration
-				(DateTime->from_epoch(epoch => str2time($content->{expires})) >= DateTime->now()->add(hours => 1))
-			}
+				($content = from_json($content))
+			# Check expiration
+			} || (str2time($content->{expires}) <= time()+3600)
 		) {
 			# Post new-authz request
 			my $res = $self->_post($self->{'new-authz'}, {resource => 'new-authz', identifier => {type => 'dns', value => $_}, existing => 'accept'});
@@ -466,7 +507,7 @@ sub authorize {
 			}
 
 			# Decode content
-			$content = decode_json($res->content);
+			$content = from_json($res->content);
 
 			# Check domain
 			unless (defined $content->{identifier}{value} && $content->{identifier}{value} eq $_) {
@@ -479,7 +520,7 @@ sub authorize {
 			}
 
 			# Write to file
-			write_file($file, encode_json($content));
+			write_file($file, to_json($content));
 		}
 
 		# Add challenge
@@ -502,8 +543,8 @@ sub authorize {
 				} elsif ($challenge->{status} eq 'pending') {
 					# Handle check
 					if (
-						($challenge->{type} =~ /^http-[0-9]+$/ and $self->_httpCheck($_, $challenge->{token})) or
-						($challenge->{type} =~ /^dns-[0-9]+$/ and $self->_dnsCheck($_, $challenge->{token}))
+						($challenge->{type} =~ /^http-01$/ and $self->_httpCheck($_, $challenge->{token})) or
+						($challenge->{type} =~ /^dns-01$/ and $self->_dnsCheck($_, $challenge->{token}))
 					) {
 						# Post challenge request
 						my $res = $self->_post($challenge->{uri}, {resource => 'challenge', keyAuthorization => $challenge->{token}.'.'.$self->{account}{thumbprint}});
@@ -514,7 +555,7 @@ sub authorize {
 						}
 
 						# Extract content
-						my $content = decode_json($res->content);
+						my $content = from_json($res->content);
 
 						# Save if valid
 						if ($content->{status} eq 'valid') {
@@ -528,11 +569,18 @@ sub authorize {
 								poll => $content->{uri}
 							});
 						}
-					# Print http help
-					} elsif ($challenge->{type} =~ /^http-[0-9]+$/) {
+					}
+				}
+			}
+			# Check if check is challenge still in pending and no polls
+			if ($self->{challenges}{$_}{status} eq 'pending' && scalar @{$self->{challenges}{$_}{polls}} == 0) {
+				# Loop on all remaining challenges
+				foreach my $challenge (@{$content->{challenges}}) {
+					# Display help for http-01 check
+					if ($challenge->{type} eq 'http-01') {
 						print STDERR 'Create URI http://'.$_.'/.well-known/acme-challenge/'.$challenge->{token}.' with content '.$challenge->{token}.'.'.$self->{account}{thumbprint}."\n";
-					# Print dns help
-					} elsif ($challenge->{type} =~ /^dns-[0-9]+$/) {
+					# Display help for dns-01 check
+					} elsif ($challenge->{type} eq 'dns-01') {
 						print STDERR 'Create TXT record _acme-challenge.'.$_.'. with value '.(((sha256_base64($challenge->{token}.'.'.$self->{account}{thumbprint})) =~ s/=+\z//r) =~ tr[+/][-_]r)."\n";
 					}
 				}
@@ -562,11 +610,11 @@ sub authorize {
 
 				# Handle error
 				unless ($res->is_success) {
-					carp 'GET '.$self->{challenges}{$_}{http_challenge}.' failed: '.$res->status_line if ($_debug);
+					carp 'GET '.$self->{challenges}{$_}{http_challenge}.' failed: '.$res->status_line if ($self->{debug});
 				}
 
 				# Extract content
-				my $content = decode_json($res->content);
+				my $content = from_json($res->content);
 
 				# Save status
 				if ($content->{status} ne 'pending') {
@@ -576,6 +624,25 @@ sub authorize {
 		} map { $self->{challenges}{$_}{status} eq 'pending' ? $_ : (); } keys %{$self->{challenges}};
 	} 
 
+	# Load config if available
+	my $config = undef;
+	if (
+		#XXX: use eval to workaround a fatal in from_json
+		defined eval {
+			# Check that file exists
+			-f CONFIG &&
+			# Read it
+			($config = read_file(CONFIG)) &&
+			# Decode it
+			($config = from_json($config)) &&
+			# Check defined
+			$config->{thumbprint}
+		}
+	) {
+		# Try to write thumbprint
+		write_file($config->{thumbprint}, '');
+	}
+
 	# Stop here with remaining chanllenge
 	if (scalar map { ! defined $_->{status} or $_->{status} ne 'valid' ? 1 : (); } values %{$self->{challenges}}) {
 		# Deactivate all activated domains 
@@ -585,14 +652,14 @@ sub authorize {
 		#	my $res = $self->_post($self->{challenges}{$_}{http_uri}, {resource => 'authz', status => 'deactivated'});
 		#	# Handle error
 		#	unless ($res->is_success) {
-		#		print Dumper($res);
 		#		confess 'POST '.$self->{challenges}{$_}{http_uri}.' failed: '.$res->status_line;
 		#	}
 		#} map { $self->{challenges}{$_}{status} eq 'valid' ? $_ : () } keys %{$self->{challenges}};
 
 		# Stop here as a domain of csr list failed authorization
-		if ($_debug) {
-			confess 'Fix the challenges for domains: '.join(', ', map { ! defined $self->{challenges}{$_}{status} or $self->{challenges}{$_}{status} ne 'valid' ? $_ : (); } keys %{$self->{challenges}});
+		if ($self->{debug}) {
+			my @domains = map { ! defined $self->{challenges}{$_}{status} or $self->{challenges}{$_}{status} ne 'valid' ? $_ : (); } keys %{$self->{challenges}};
+			confess 'Fix the challenge'.(scalar @domains > 1?'s':'').' for domain'.(scalar @domains > 1?'s':'').': '.join(', ', @domains);
 		} else {
 			exit EXIT_FAILURE;
 		}
@@ -634,7 +701,7 @@ sub issue {
 
 	# Handle error
 	unless ($res->is_success) {
-		carp 'GET '.ACME_CERT.' failed: '.$res->status_line if ($_debug);
+		carp 'GET '.ACME_CERT.' failed: '.$res->status_line if ($self->{debug});
 	}
 
 	# Append content
@@ -644,7 +711,7 @@ sub issue {
 	close($fh) or die $!;
 
 	# Print success
-	carp 'Success, pem certificate in '.CERT_DIR.DS.SERVER_CRT if ($_debug);
+	carp 'Success, pem certificate in '.CERT_DIR.DS.SERVER_CRT if ($self->{debug});
 }
 
 1;