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dmarcts-report-parser.pl
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dmarcts-report-parser.pl
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#!/usr/bin/perl
################################################################################
# dmarcts-report-parser - A Perl based tool to parse DMARC reports from an IMAP
# mailbox or from the filesystem, and insert the information into a database.
# ( Formerly known as imap-dmarcts )
#
# Copyright (C) 2016 TechSneeze.com and John Bieling
#
# Available at:
# https://github.com/techsneeze/dmarcts-report-parser
#
# This program 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/>.
################################################################################
################################################################################
# The subroutines storeXMLInDatabase() and getXMLFromMessage() are based on
# John R. Levine's rddmarc (http://www.taugh.com/rddmarc/). The following
# special conditions apply to those subroutines:
#
# Copyright 2012, Taughannock Networks. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# Redistributions in binary form must reproduce the above copyright notice, this
# list of conditions and the following disclaimer in the documentation and/or
# other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
################################################################################
# Always be safe
use strict;
use warnings;
# Use these modules
use Getopt::Long;
use IO::Compress::Gzip qw(gzip $GzipError);
#use Data::Dumper;
use Mail::IMAPClient;
use Mail::Mbox::MessageParser;
use MIME::Base64 qw(encode_base64);
use MIME::Words qw(decode_mimewords);
use MIME::Parser;
use MIME::Parser::Filer;
use XML::Simple;
use DBI;
use Socket;
use Socket6;
use PerlIO::gzip;
use File::Basename ();
use File::MimeInfo;
use IO::Socket::SSL;
#use IO::Socket::SSL 'debug3';
################################################################################
### usage ######################################################################
################################################################################
sub show_usage {
print "\n";
print " Usage: \n";
print " ./dmarcts-report-parser.pl [OPTIONS] [PATH] \n";
print "\n";
print " This script needs a configuration file called <dmarcts-report-parser.conf> in \n";
print " the current working directory, which defines a database server with credentials \n";
print " and (if used) an IMAP server with credentials. \n";
print "\n";
print " Additionaly, one of the following source options must be provided: \n";
print " -i : Read reports from messages on IMAP server as defined in the \n";
print " config file. \n";
print " -m : Read reports from mbox file(s) provided in PATH. \n";
print " -e : Read reports from MIME email file(s) provided in PATH. \n";
print " -x : Read reports from xml file(s) provided in PATH. \n";
print " -z : Read reports from zip file(s) provided in PATH. \n";
print "\n";
print " The following optional options are allowed: \n";
print " -d : Print debug info. \n";
print " -r : Replace existing reports rather than skipping them. \n";
print " --delete : Delete processed message files (the XML is stored in the \n";
print " database for later reference). \n";
print " --info : Print out number of XML files or emails processed. \n";
print "\n";
}
################################################################################
### main #######################################################################
################################################################################
# Define all possible configuration options.
our ($debug, $delete_reports, $delete_failed, $reports_replace, $maxsize_xml, $compress_xml,
$dbtype, $dbname, $dbuser, $dbpass, $dbhost, $dbport, $db_tx_support,
$imapserver, $imapport, $imapuser, $imappass, $imapignoreerror, $imapssl, $imaptls, $imapmovefolder,
$imapmovefoldererr, $imapreadfolder, $imapopt, $tlsverify, $processInfo);
# defaults
$maxsize_xml = 50000;
$dbtype = 'mysql';
$db_tx_support = 1;
# used in messages
my $scriptname = 'dmarcts-report-parser.pl';
# allowed values for the DB columns, also used to build the enum() in the
# CREATE TABLE statements in checkDatabase(), in order defined here
use constant ALLOWED_DISPOSITION => qw(
none
quarantine
reject
unknown
);
use constant ALLOWED_DKIM_ALIGN => qw(
fail
pass
unknown
);
use constant ALLOWED_SPF_ALIGN => qw(
fail
pass
unknown
);
use constant ALLOWED_DKIMRESULT => qw(
none
pass
fail
neutral
policy
temperror
permerror
unknown
);
use constant ALLOWED_SPFRESULT => qw(
none
neutral
pass
fail
softfail
temperror
permerror
unknown
);
# Load script configuration options from local config file. The file is expected
# to be in the current working directory.
my $conf_file = 'dmarcts-report-parser.conf';
# Get command line options.
my %options = ();
use constant { TS_IMAP => 0, TS_MESSAGE_FILE => 1, TS_XML_FILE => 2, TS_MBOX_FILE => 3, TS_ZIP_FILE => 4 };
GetOptions( \%options, 'd', 'r', 'x', 'm', 'e', 'i', 'z', 'delete', 'info', 'c' => \$conf_file );
# locate conf file or die
if ( -e $conf_file ) {
#$conf_file = "./$conf_file";
} elsif( -e (File::Basename::dirname($0) . "/$conf_file" ) ) {
$conf_file = ( File::Basename::dirname($0) . "/$conf_file" );
} else {
show_usage();
die "$scriptname: Could not read config file '$conf_file' from current working directory or path (" . File::Basename::dirname($0) . ')'
}
# load conf file with error handling
if ( substr($conf_file, 0, 1) ne '/' and substr($conf_file, 0, 1) ne '.') {
$conf_file = "./$conf_file";
}
my $conf_return = do $conf_file;
die "$scriptname: couldn't parse $conf_file: $@" if $@;
die "$scriptname: couldn't do $conf_file: $!" unless defined $conf_return;
# check config
if (!defined $imapreadfolder ) {
die "$scriptname: \$imapreadfolder not defined. Check config file";
}
if (!defined $imapignoreerror ) {
$imapignoreerror = 0; # maintain compatibility to old version
}
# Evaluate command line options
my $source_options = 0;
our $reports_source;
if (exists $options{m}) {
$source_options++;
$reports_source = TS_MBOX_FILE;
}
if (exists $options{x}) {
$source_options++;
$reports_source = TS_XML_FILE;
}
if (exists $options{e}) {
$source_options++;
$reports_source = TS_MESSAGE_FILE;
}
if (exists $options{i}) {
$source_options++;
$reports_source = TS_IMAP;
}
if (exists $options{z}) {
$source_options++;
$reports_source = TS_ZIP_FILE;
}
if (exists $options{c}) {
$source_options++;
}
if ($source_options > 1) {
show_usage();
die "$scriptname: Only one source option can be used (-i, -x, -m, -e or -z).\n";
} elsif ($source_options == 0) {
show_usage();
die "$scriptname: Please provide a source option (-i, -x, -m, -e or -z).\n";
}
if ($ARGV[0]) {
if ($reports_source == TS_IMAP) {
show_usage();
die "$scriptname: The IMAP source option (-i) may not be used together with a PATH.\n";
}
} else {
if ($reports_source != TS_IMAP && $source_options == 1) {
show_usage();
die "$scriptname: The provided source option requires a PATH.\n";
}
}
# Override config options by command line options.
if (exists $options{r}) {$reports_replace = 1;}
if (exists $options{d}) {$debug = 1;}
if (exists $options{delete}) {$delete_reports = 1;}
if (exists $options{info}) {$processInfo = 1;}
# Setup connection to database server.
our %dbx;
my $dbx_file = File::Basename::dirname($0) . "/dbx_$dbtype.pl";
my $dbx_return = do $dbx_file;
die "$scriptname: couldn't load DB definition for type $dbtype: $@" if $@;
die "$scriptname: couldn't load DB definition for type $dbtype: $!" unless defined $dbx_return;
my $dbh = DBI->connect("DBI:$dbtype:database=$dbname;host=$dbhost;port=$dbport",
$dbuser, $dbpass)
or die "$scriptname: Cannot connect to database\n";
if ($db_tx_support) {
$dbh->{AutoCommit} = 0;
}
checkDatabase($dbh);
# Process messages based on $reports_source.
if ($reports_source == TS_IMAP) {
my $socketargs = '';
my $processedReport = 0;
# Disable verify mode for TLS support.
if ($imaptls == 1) {
if ( $tlsverify == 0 ) {
print "use tls without verify servercert.\n" if $debug;
$imapopt = [ SSL_verify_mode => SSL_VERIFY_NONE ];
} else {
print "use tls with verify servercert.\n" if $debug;
$imapopt = [ SSL_verify_mode => SSL_VERIFY_PEER ];
}
# The whole point of setting this socket arg is so that we don't get the nasty warning
} else {
print "using ssl without verify servercert.\n" if $debug;
$socketargs = [ SSL_verify_mode => SSL_VERIFY_NONE ];
}
print "connection to $imapserver with Ssl => $imapssl, User => $imapuser, Ignoresizeerrors => $imapignoreerror\n" if $debug;
# Setup connection to IMAP server.
my $imap = Mail::IMAPClient->new(
Server => $imapserver,
Port => $imapport,
Ssl => $imapssl,
Starttls => $imapopt,
Debug => $debug,
Socketargs => $socketargs
)
# module uses eval, so we use $@ instead of $!
or die "$scriptname: IMAP Failure: $@";
# This connection is finished this way because of the tradgedy of exchange...
$imap->User($imapuser);
$imap->Password($imappass);
$imap->connect() or die "$scriptname: Could not connect: $@";
# Ignore Size Errors if we're using Exchange
$imap->Ignoresizeerrors($imapignoreerror);
# Set $imap to UID mode, which will force imap functions to use/return
# UIDs, instead of message sequence numbers. UIDs are not allowed to
# change during a session and are not allowed to be used twice. Looping
# over message sequence numbers and deleting a msg in between could have
# unwanted side effects.
$imap->Uid(1);
# How many msgs are we going to process?
print "Processing ". $imap->message_count($imapreadfolder)." messages in folder <$imapreadfolder>.\n" if $debug;
# Only select and search $imapreadfolder, if we actually
# have something to do.
if ($imap->message_count($imapreadfolder)) {
# Select the mailbox to get messages from.
$imap->select($imapreadfolder)
or die "$scriptname: IMAP Select Error: $!";
# Store each message as an array element.
my @msgs = $imap->search('ALL')
or die "$scriptname: Couldn't get all messages\n";
# Loop through IMAP messages.
foreach my $msg (@msgs) {
my $processResult = processXML(TS_MESSAGE_FILE, $imap->message_string($msg), "IMAP message with UID #".$msg);
$processedReport++;
if ($processResult & 4) {
# processXML returned a value with database error bit enabled, do nothing at all!
if ($imapmovefoldererr) {
# if we can, move to error folder
moveToImapFolder($imap, $msg, $imapmovefoldererr);
} else {
# do nothing at all
next;
}
} elsif ($processResult & 2) {
# processXML return a value with delete bit enabled.
$imap->delete_message($msg)
or warn "$scriptname: Could not delete IMAP message. [$@]\n";
} elsif ($imapmovefolder) {
if ($processResult & 1 || !$imapmovefoldererr) {
# processXML processed the XML OK, or it failed and there is no error imap folder
moveToImapFolder($imap, $msg, $imapmovefolder);
} elsif ($imapmovefoldererr) {
# processXML failed and error folder set
moveToImapFolder($imap, $msg, $imapmovefoldererr);
}
} elsif ($imapmovefoldererr && !($processResult & 1)) {
# processXML failed, error imap folder set, but imapmovefolder unset. An unlikely setup, but still...
moveToImapFolder($imap, $msg, $imapmovefoldererr);
}
}
# Expunge and close the folder.
$imap->expunge($imapreadfolder);
$imap->close($imapreadfolder);
}
# We're all done with IMAP here.
$imap->logout();
if ( $debug || $processInfo ) { print "$scriptname: Processed $processedReport emails.\n"; }
} else { # TS_MESSAGE_FILE or TS_XML_FILE or TS_MBOX_FILE
my $counts = 0;
foreach my $a (@ARGV) {
# Linux bash supports wildcard expansion BEFORE the script is
# called, so here we only see a list of files. Other OS behave
# different, so we should not depend on that feature: Use glob
# on each argument to manually expand the argument, if possible.
my @file_list = glob($a);
foreach my $f (@file_list) {
my $filecontent;
if ($reports_source == TS_MBOX_FILE) {
my $parser = Mail::Mbox::MessageParser->new({"file_name" => $f, "debug" => $debug, "enable_cache" => 0});
my $num = 0;
do {
$num++;
$filecontent = $parser->read_next_email();
if (defined($filecontent)) {
if (processXML(TS_MESSAGE_FILE, $filecontent, "message #$num of mbox file <$f>") & 2) {
# processXML return a value with delete bit enabled
warn "$scriptname: Removing message #$num from mbox file <$f> is not yet supported.\n";
}
$counts++;
}
} while(defined($filecontent));
} elsif ($reports_source == TS_ZIP_FILE) {
# filecontent is zip file
$filecontent = getXMLFromZip($f);
if (processXML(TS_ZIP_FILE, $filecontent, "xml file <$f>") & 2) {
# processXML return a value with delete bit enabled
unlink($f);
}
$counts++;
} elsif (open(FILE, "<", $f)) {
$filecontent = join("", <FILE>);
close FILE;
if ($reports_source == TS_MESSAGE_FILE) {
# filecontent is a mime message with zip or xml part
if (processXML(TS_MESSAGE_FILE, $filecontent, "message file <$f>") & 2) {
# processXML return a value with delete bit enabled
unlink($f);
}
$counts++;
} elsif ($reports_source == TS_XML_FILE) {
# filecontent is xml file
if (processXML(TS_XML_FILE, $filecontent, "xml file <$f>") & 2) {
# processXML return a value with delete bit enabled
unlink($f);
}
$counts++;
} else {
warn "$scriptname: Unknown reports_source <$reports_source> for file <$f>. Skipped.\n";
}
} else {
warn "$scriptname: Could not open file <$f>: $!. Skipped.\n";
# Could not retrieve filecontent, the skipped message
# will be processed every time the script is run even if
# delete_reports and delete_failed is given. The user
# has to look at the actual file.
}
}
}
if ($debug || $processInfo) { print "$scriptname: Processed $counts messages(s).\n"; }
}
################################################################################
### subroutines ################################################################
################################################################################
sub moveToImapFolder {
my $imap = $_[0];
my $msg = $_[1];
my $imapfolder = $_[2];
print "Moving (copy and delete) IMAP message file to IMAP folder: $imapfolder\n" if $debug;
# Try to create $imapfolder, if it does not exist.
if (!$imap->exists($imapfolder)) {
$imap->create($imapfolder)
or warn "$scriptname: Could not create IMAP folder: $imapfolder.\n";
}
# Try to move the message to $imapfolder.
my $newid = $imap->copy($imapfolder, [ $msg ]);
if (!$newid) {
warn "$scriptname: Error on moving (copy and delete) processed IMAP message: Could not COPY message to IMAP folder: <$imapfolder>!\n";
warn "$scriptname: Messsage will not be moved/deleted. [$@]\n";
} else {
$imap->delete_message($msg)
or do {
warn "$scriptname: Error on moving (copy and delete) processed IMAP message: Could not DELETE message\n";
warn "$scriptname: after copying it to <$imapfolder>. [$@]\n";
}
}
}
sub processXML {
my ($type, $filecontent, $f) = (@_);
if ($debug) {
print "\n";
print "----------------------------------------------------------------\n";
print "Processing $f \n";
print "----------------------------------------------------------------\n";
print "Type: $type\n";
print "FileContent: $filecontent\n";
print "MSG: $f\n";
print "----------------------------------------------------------------\n";
}
my $xml; #TS_XML_FILE or TS_MESSAGE_FILE
if ($type == TS_MESSAGE_FILE) {$xml = getXMLFromMessage($filecontent);}
elsif ($type == TS_ZIP_FILE) {$xml = $filecontent;}
else {$xml = getXMLFromXMLString($filecontent);}
# If !$xml, the file/mail is probably not a DMARC report.
# So do not storeXMLInDatabase.
if ($xml && storeXMLInDatabase($xml) <= 0) {
# If storeXMLInDatabase returns false, there was some sort
# of database storage failure and we MUST NOT delete the
# file, because it has not been pushed into the database.
# The user must investigate this issue.
warn "$scriptname: Skipping $f due to database errors.\n";
return 5; #xml ok(1), but database error(4), thus no delete (!2)
}
# Delete processed message, if the --delete option
# is given. Failed reports are only deleted, if delete_failed is given.
if ($delete_reports && ($xml || $delete_failed)) {
if ($xml) {
print "Removing after report has been processed.\n" if $debug;
return 3; #xml ok (1), delete file (2)
} else {
# A mail which does not look like a DMARC report
# has been processed and should now be deleted.
# Print its content so it gets send as cron
# message, so the user can still investigate.
warn "$scriptname: The $f does not seem to contain a valid DMARC report. Skipped and Removed. Content:\n";
warn $filecontent."\n";
return 2; #xml not ok (!1), delete file (2)
}
}
if ($xml) {
return 1;
} else {
warn "$scriptname: The $f does not seem to contain a valid DMARC report. Skipped.\n";
return 0;
}
}
################################################################################
# Walk through a mime message and return a reference to the XML data containing
# the fields of the first ZIPed XML file embedded into the message. The XML
# itself is not checked to be a valid DMARC report.
sub getXMLFromMessage {
my ($message) = (@_);
# fixup type in trustwave SEG mails
$message =~ s/ContentType:/Content-Type:/;
my $parser = new MIME::Parser;
$parser->output_dir("/tmp");
$parser->filer->ignore_filename(1);
my $ent = $parser->parse_data($message);
my $body = $ent->bodyhandle;
my $mtype = $ent->mime_type;
my $subj = decode_mimewords($ent->get('subject'));
chomp($subj); # Subject always contains a \n.
if ($debug) {
print "Subject: $subj\n";
print "MimeType: $mtype\n";
}
my $location;
my $isgzip = 0;
if(lc $mtype eq "application/zip") {
if ($debug) {
print "This is a ZIP file \n";
}
$location = $body->path;
} elsif (lc $mtype eq "application/gzip" or lc $mtype eq "application/x-gzip") {
if ($debug) {
print "This is a GZIP file \n";
}
$location = $body->path;
$isgzip = 1;
} elsif (lc $mtype =~ "multipart/") {
# At the moment, nease.net messages are multi-part, so we need
# to breakdown the attachments and find the zip.
if ($debug) {
print "This is a multipart attachment \n";
}
#print Dumper($ent->parts);
my $num_parts = $ent->parts;
for (my $i=0; $i < $num_parts; $i++) {
my $part = $ent->parts($i);
# Find a zip file to work on...
if(lc $part->mime_type eq "application/gzip" or lc $part->mime_type eq "application/x-gzip") {
$location = $ent->parts($i)->{ME_Bodyhandle}->{MB_Path};
$isgzip = 1;
print "$location\n" if $debug;
last; # of parts
} elsif(lc $part->mime_type eq "application/x-zip-compressed"
or $part->mime_type eq "application/zip") {
$location = $ent->parts($i)->{ME_Bodyhandle}->{MB_Path};
print "$location\n" if $debug;
} elsif(lc $part->mime_type eq "application/octet-stream") {
$location = $ent->parts($i)->{ME_Bodyhandle}->{MB_Path};
$isgzip = 1 if $location =~ /\.gz$/;
print "$location\n" if $debug;
} else {
# Skip the attachment otherwise.
if ($debug) {
print "Skipped an unknown attachment (".lc $part->mime_type.")\n";
}
next; # of parts
}
}
} else {
## Clean up dangling mime parts in /tmp of messages without ZIP.
my $num_parts = $ent->parts;
for (my $i=0; $i < $num_parts; $i++) {
if ($debug) {
if ($ent->parts($i)->{ME_Bodyhandle} && $ent->parts($i)->{ME_Bodyhandle}->{MB_Path}) {
print $ent->parts($i)->{ME_Bodyhandle}->{MB_Path};
} else {
print "undef";
}
print "\n";
}
if($ent->parts($i)->{ME_Bodyhandle}) {$ent->parts($i)->{ME_Bodyhandle}->purge;}
}
}
# If a ZIP has been found, extract XML and parse it.
my $xml;
if(defined($location)) {
if ($debug) {
print "body is in " . $location . "\n";
}
# Open the zip file and process the XML contained inside.
my $unzip = "";
if($isgzip) {
open(XML, "<:gzip", $location)
or $unzip = "ungzip";
} else {
open(XML, "-|", "unzip", "-p", $location)
or $unzip = "unzip"; # Will never happen.
# Sadly unzip -p never failes, but we can check if the
# filehandle points to an empty file and pretend it did
# not open/failed.
if (eof XML) {
$unzip = "unzip";
}
}
# Read XML if possible (if open)
if ($unzip eq "") {
$xml = getXMLFromXMLString(join("", <XML>));
if (!$xml) {
warn "$scriptname: Subject: $subj\n:";
warn "$scriptname: The XML found in ZIP file (temp. location: <$location>) does not seem to be valid XML! \n";
}
close XML;
} else {
warn "$scriptname: Subject: $subj\n:";
warn "$scriptname: Failed to $unzip ZIP file (temp. location: <$location>)! \n";
close XML;
}
} else {
warn "$scriptname: Subject: $subj\n:";
warn "$scriptname: Could not find an embedded ZIP! \n";
}
if($body) {$body->purge;}
if($ent) {$ent->purge;}
return $xml;
}
################################################################################
sub getXMLFromZip {
my $filename = $_[0];
my $mtype = mimetype($filename);
if ($debug) {
print "Filename: $filename, MimeType: $mtype\n";
}
my $isgzip = 0;
if(lc $mtype eq "application/zip") {
if ($debug) {
print "This is a ZIP file \n";
}
} elsif (lc $mtype eq "application/gzip" or lc $mtype eq "application/x-gzip") {
if ($debug) {
print "This is a GZIP file \n";
}
$isgzip = 1;
} else {
if ($debug) {
print "This is not an archive file \n";
}
}
# If a ZIP has been found, extract XML and parse it.
my $xml;
if(defined($filename)) {
# Open the zip file and process the XML contained inside.
my $unzip = "";
if($isgzip) {
open(XML, "<:gzip", $filename)
or $unzip = "ungzip";
} else {
open(XML, "-|", "unzip", "-p", $filename)
or $unzip = "unzip"; # Will never happen.
# Sadly unzip -p never failes, but we can check if the
# filehandle points to an empty file and pretend it did
# not open/failed.
if (eof XML) {
$unzip = "unzip";
}
}
# Read XML if possible (if open)
if ($unzip eq "") {
$xml = getXMLFromXMLString(join("", <XML>));
if (!$xml) {
warn "$scriptname: The XML found in ZIP file (<$filename>) does not seem to be valid XML! \n";
}
close XML;
} else {
warn "$scriptname: Failed to $unzip ZIP file (<$filename>)! \n";
close XML;
}
} else {
warn "$scriptname: Could not find an <$filename>! \n";
}
return $xml;
}
################################################################################
sub getXMLFromXMLString {
my $raw_xml = $_[0];
eval {
my $xs = XML::Simple->new();
my $ref = $xs->XMLin($raw_xml, SuppressEmpty => '');
$ref->{'raw_xml'} = $raw_xml;
return $ref;
} or do {
return undef;
}
}
################################################################################
# Extract fields from the XML report data hash and store them into the database.
# return 1 when ok, 0, for serious error and -1 for minor errors
sub storeXMLInDatabase {
my $xml = $_[0]; # $xml is a reference to the xml data
my $from = $xml->{'report_metadata'}->{'date_range'}->{'begin'};
my $to = $xml->{'report_metadata'}->{'date_range'}->{'end'};
my $org = $xml->{'report_metadata'}->{'org_name'};
my $id = $xml->{'report_metadata'}->{'report_id'};
my $email = $xml->{'report_metadata'}->{'email'};
my $extra = $xml->{'report_metadata'}->{'extra_contact_info'};
my $domain = undef;
my $policy_adkim = undef;
my $policy_aspf = undef;
my $policy_p = undef;
my $policy_sp = undef;
my $policy_pct = undef;
if (ref $xml->{'policy_published'} eq "HASH") {
$domain = $xml->{'policy_published'}->{'domain'};
$policy_adkim = $xml->{'policy_published'}->{'adkim'};
$policy_aspf = $xml->{'policy_published'}->{'aspf'};
$policy_p = $xml->{'policy_published'}->{'p'};
$policy_sp = $xml->{'policy_published'}->{'sp'};
$policy_pct = $xml->{'policy_published'}->{'pct'};
} else {
$domain = $xml->{'policy_published'}[0]->{'domain'};
$policy_adkim = $xml->{'policy_published'}[0]->{'adkim'};
$policy_aspf = $xml->{'policy_published'}[0]->{'aspf'};
$policy_p = $xml->{'policy_published'}[0]->{'p'};
$policy_sp = $xml->{'policy_published'}[0]->{'sp'};
$policy_pct = $xml->{'policy_published'}[0]->{'pct'};
}
my $record = $xml->{'record'};
if ( ! defined($record) ) {
warn "$scriptname: $org: $id: No records in report. Skipped.\n";
return 0;
}
# see if already stored
my $sth = $dbh->prepare(qq{SELECT org, serial FROM report WHERE reportid=? AND org=? AND domain=?});
$sth->execute($id, $org, $domain);
while ( my ($xorg,$sid) = $sth->fetchrow_array() )
{
if ($reports_replace) {
# $sid is the serial of a report with reportid=$id
# Remove this $sid from rptrecord and report table, but
# try to continue on failure rather than skipping.
print "$scriptname: $org: $id: Replacing data.\n";
$dbh->do(qq{DELETE from rptrecord WHERE serial=?}, undef, $sid);
if ($dbh->errstr) {
warn "$scriptname: $org: $id: Cannot remove report data from database. Try to continue.\n";
}
$dbh->do(qq{DELETE from report WHERE serial=?}, undef, $sid);
if ($dbh->errstr) {
warn "$scriptname: $org: $id: Cannot remove report from database. Try to continue.\n";
}
} else {
print "$scriptname: $org: $id: Already have report, skipped\n";
# Do not store in DB, but return true, so the message can
# be moved out of the way, if configured to do so.
return 1;
}
}
my $sql = qq{INSERT INTO report(mindate,maxdate,domain,org,reportid,email,extra_contact_info,policy_adkim, policy_aspf, policy_p, policy_sp, policy_pct, raw_xml)
VALUES($dbx{epoch_to_timestamp_fn}(?),$dbx{epoch_to_timestamp_fn}(?),?,?,?,?,?,?,?,?,?,?,?)};
my $storexml = $xml->{'raw_xml'};
if ($compress_xml) {
my $gzipdata;
if(!gzip(\$storexml => \$gzipdata)) {
warn "$scriptname: $org: $id: Cannot add gzip XML to database ($GzipError). Skipped.\n";
rollback($dbh);
return 0;
$storexml = "";
} else {
$storexml = encode_base64($gzipdata, "");
}
}
if (length($storexml) > $maxsize_xml) {
warn "$scriptname: $org: $id: Skipping storage of large XML (".length($storexml)." bytes) as defined in config file.\n";
$storexml = "";
}
$dbh->do($sql, undef, $from, $to, $domain, $org, $id, $email, $extra, $policy_adkim, $policy_aspf, $policy_p, $policy_sp, $policy_pct, $storexml);
if ($dbh->errstr) {
warn "$scriptname: $org: $id: Cannot add report to database. Skipped.\n";
rollback($dbh);
return 0;
}
my $serial = $dbh->last_insert_id(undef, undef, 'report', undef);
if ($debug){
print " serial $serial \n";
}
sub dorow($$$$) {
my ($serial,$recp,$org,$id) = @_;
my %r = %$recp;
my $ip = $r{'row'}->{'source_ip'};
if ( $ip eq '' ) {
warn "$scriptname: $org: $id: source_ip is empty. Skipped.\n";
rollback($dbh);
return 0;
}
my $count = $r{'row'}->{'count'};
my $disp = $r{'row'}->{'policy_evaluated'}->{'disposition'};
if ( ! grep { $_ eq $disp } ALLOWED_DISPOSITION ) {
$disp = 'unknown';
};
# some reports don't have dkim/spf, "unknown" is default for these
my $dkim_align = $r{'row'}->{'policy_evaluated'}->{'dkim'};
if ( ! grep { $_ eq $dkim_align } ALLOWED_DKIM_ALIGN ) {
$dkim_align = 'unknown';
};
my $spf_align = $r{'row'}->{'policy_evaluated'}->{'spf'};
if ( ! grep { $_ eq $spf_align } ALLOWED_SPF_ALIGN ) {
$spf_align = 'unknown';
};
my $identifier_hfrom = $r{'identifiers'}->{'header_from'};
my ($dkim, $dkimresult, $spf, $spfresult, $reason);
if(ref $r{'auth_results'} ne "HASH"){
warn "$scriptname: $org: $id: Report has no auth_results data. Skipped.\n";
rollback($dbh);
return 0;
}
my $rp = $r{'auth_results'}->{'dkim'};
if(ref $rp eq "HASH") {
$dkim = $rp->{'domain'};
$dkim = undef if ref $dkim eq "HASH";
$dkimresult = $rp->{'result'};
} else { # array, i.e. multiple dkim results (usually from multiple domains)
# glom sigs together
$dkim = join '/',map { my $d = $_->{'domain'}; ref $d eq "HASH"?"": $d } @$rp;
# report results
my $rp_len = scalar(@$rp);
for ( my $i=0; $i < $rp_len; $i++ ) {
if ( $rp->[$i]->{'result'} eq "pass" ) {
# If any one dkim result is a "pass", this should yield an overall "pass" and immediately exit the for loop, ignoring any remaing results
# See
# RFC 6376, DomainKeys Identified Mail (DKIM) Signatures
# Section 4.2: https://tools.ietf.org/html/rfc6376#section-4.2 and
# Section 6.1: https://tools.ietf.org/html/rfc6376#section-6.1
# And the GitHub issues at
# https://github.com/techsneeze/dmarcts-report-viewer/issues/47
# https://github.com/techsneeze/dmarcts-report-parser/pull/78
$dkimresult = "pass";
last;
} else {
for ( my $j=$i+1; $j < $rp_len; $j++ ) {
if ( $rp->[$i]->{'result'} eq $rp->[$j]->{'result'} ) {
# Compare each dkim result to the next one to see if all of the dkim results are the same.
# If all of the dkim results are the same, that will be the overall result.
# If any of them are different, and don't contain a "pass" result, then $dkimresult will be empty
$dkimresult = $rp->[0]->{'result'};
} else {
$dkimresult = 'unknown';
}
}
}
}
}
if ( ! defined($dkimresult) || ! grep { $_ eq $dkimresult } ALLOWED_DKIMRESULT ) {
$dkimresult = 'unknown';
};
$rp = $r{'auth_results'}->{'spf'};
if(ref $rp eq "HASH") {
$spf = $rp->{'domain'};
$spf = undef if ref $spf eq "HASH";
$spfresult = $rp->{'result'};
} else { # array, i.e. multiple dkim results (usually from multiple domains)
# glom sigs together
$spf = join '/',map { my $d = $_->{'domain'}; ref $d eq "HASH"?"": $d } @$rp;
# report results
my $rp_len = scalar(@$rp);
for ( my $i=0; $i < $rp_len; $i++ ) {
if ( $rp->[$i]->{'result'} eq "pass" ) {
# If any one spf result is a "pass", this should yield an overall "pass" and immediately exit the for loop, ignoring any remaing results
$spfresult = "pass";
last;
} else {
for ( my $j=$i+1; $j < $rp_len; $j++ ) {
if ( $rp->[$i]->{'result'} eq $rp->[$j]->{'result'} ) {
# Compare each spf result to the next one to see if all of the spf results are the same.
# If all of the spf results are the same, that will be the overall result.
# If any of them are different, and don't contain a "pass" result, then $spfresult will be empty
$spfresult = $rp->[0]->{'result'};
} else {
$spfresult = 'unknown';
}
}
}
}
}
if ( ! defined($spfresult) || ! grep { $_ eq $spfresult } ALLOWED_SPFRESULT ) {
$spfresult = 'unknown';
};
$rp = $r{'row'}->{'policy_evaluated'}->{'reason'};
if(ref $rp eq "HASH") {
$reason = $rp->{'type'};
} else {
$reason = join '/',map { $_->{'type'} } @$rp;
}
#print "ip=$ip, count=$count, disp=$disp, r=$reason,";
#print "dkim=$dkim/$dkimresult, spf=$spf/$spfresult\n";
# What type of IP address?
my ($nip, $iptype, $ipval);
if ($debug) {
print "ip=$ip\n";
}
if($nip = inet_pton(AF_INET, $ip)) {
$ipval = unpack "N", $nip;
$iptype = "ip";
} elsif($nip = inet_pton(AF_INET6, $ip)) {
$ipval = $dbx{to_hex_string}($nip);
$iptype = "ip6";
} else {
warn "$scriptname: $org: $id: ??? mystery ip $ip\n";
rollback($dbh);
return 0;
}