Current File : /www/varak.net/dmarc.varak.net/classes/Report/ReportFetcher.php
<?php
/**
* dmarc-srg - A php parser, viewer and summary report generator for incoming DMARC reports.
* Copyright (C) 2021-2024 Aleksey Andreev (liuch)
*
* Available at:
* https://github.com/liuch/dmarc-srg
*
* 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.
*
* 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/>.
*
* =========================
*
* This file contains the class ReportFetcher
*
* @category API
* @package DmarcSrg
* @author Aleksey Andreev (liuch)
* @license https://www.gnu.org/licenses/gpl-3.0.html GNU/GPLv3
*/
namespace Liuch\DmarcSrg\Report;
use Liuch\DmarcSrg\Core;
use Liuch\DmarcSrg\ErrorHandler;
use Liuch\DmarcSrg\Report\Report;
use Liuch\DmarcSrg\Sources\Source;
use Liuch\DmarcSrg\ReportLog\ReportLogItem;
use Liuch\DmarcSrg\Exception\RuntimeException;
/**
* This class is designed to fetch report files from report sources and store them to the database.
*/
class ReportFetcher
{
private $source = null;
/**
* It's the constructor of the class.
*
* @param Source $sou Source for fetching report files.
*
* @return void
*/
public function __construct($sou)
{
$this->source = $sou;
}
/**
* Retrieves report files from the source and stores them in the database
* taking into account the limits from the configuration file.
*
* @return array Array of results.
*/
public function fetch(): array
{
try {
$this->source->rewind();
} catch (RuntimeException $e) {
return [[ 'source_error' => $e->getMessage() ]];
}
$core = Core::instance();
$stype = $this->source->type();
switch ($stype) {
case Source::SOURCE_MAILBOX:
$s_act = $core->config('fetcher/mailboxes/when_done', '');
$f_act = $core->config('fetcher/mailboxes/when_failed', '');
$limit = $core->config('fetcher/mailboxes/messages_maximum', 0);
break;
case Source::SOURCE_DIRECTORY:
$s_act = $core->config('fetcher/directories/when_done', '');
$f_act = $core->config('fetcher/directories/when_failed', '');
$limit = $core->config('fetcher/directories/files_maximum', 0);
break;
case Source::SOURCE_REMOTE_FILESYSTEM:
$s_act = $core->config('fetcher/remote_filesystems/when_done', '');
$f_act = $core->config('fetcher/remote_filesystems/when_failed', '');
$limit = $core->config('fetcher/remote_filesystems/files_maximum', 0);
break;
case Source::SOURCE_UPLOADED_FILE:
$s_act = '';
$f_act = '';
$limit = 0;
break;
default:
throw new RuntimeException('Unknown source type');
}
$limit = intval($limit);
if ($stype === Source::SOURCE_MAILBOX ||
$stype === Source::SOURCE_DIRECTORY ||
$stype === Source::SOURCE_REMOTE_FILESYSTEM
) {
$this->source->setParams([
'when_done' => $s_act,
'when_failed' => $f_act
]);
}
$results = [];
while ($this->source->valid()) {
$result = null;
$fname = null;
$report = null;
$success = false;
$err_msg = null;
// Extracting and saving reports
try {
$rfile = $this->source->current();
$fname = $rfile->filename();
$report = Report::fromXmlFile($rfile->datastream());
$result = $report->save($fname);
$success = true;
} catch (RuntimeException $e) {
$err_msg = $e->getMessage();
$result = ErrorHandler::exceptionResult($e);
}
unset($rfile);
// Post processing
try {
if ($success) {
$this->source->accepted();
} else {
$this->source->rejected();
}
} catch (RuntimeException $e) {
$err_msg = $e->getMessage();
$result['post_processing_message'] = $err_msg;
}
// Adding a record to the log.
if (!$err_msg) {
$log = ReportLogItem::success($stype, $report, $fname, null)->save();
} else {
$log = ReportLogItem::failed($stype, $report, $fname, $err_msg)->save();
if ($this->source->type() === Source::SOURCE_MAILBOX) {
$msg = $this->source->mailMessage();
$ov = $msg->overview();
if ($ov) {
if (property_exists($ov, 'from')) {
$result['emailed_from'] = $ov->from;
}
if (property_exists($ov, 'date')) {
$result['emailed_date'] = $ov->date;
}
}
}
if ($report) {
if (isset($report->report_id)) {
$result['report_id'] = $report->report_id;
}
}
}
unset($report);
// Adding result to the results array.
$results[] = $result;
// Checking the fetcher limits
if ($limit > 0) {
if (--$limit === 0) {
break;
}
}
$this->source->next();
}
return $results;
}
/**
* Generates the final result based on the results of loading individual report files.
*
* @param array $results Array with results of loading report files.
*
* @return array Array of the final result to be sent to the client.
*/
public static function makeSummaryResult(array $results): array
{
$reps = [];
$others = [];
$r_count = 0;
$loaded = 0;
foreach ($results as &$r) {
if (isset($r['source_error'])) {
$others[] = $r['source_error'];
} else {
$reps[] = $r;
++$r_count;
if (!isset($r['error_code']) || $r['error_code'] === 0) {
++$loaded;
}
if (isset($r['post_processing_message'])) {
$others[] = $r['post_processing_message'];
}
}
}
unset($r);
$result = null;
$o_count = count($others);
if ($r_count + $o_count === 1) {
if ($r_count === 1) {
$result = $reps[0];
} else {
$result = [
'error_code' => -1,
'message' => $others[0]
];
}
} else {
$err_code = null;
$message = null;
if ($loaded === $r_count) {
$err_code = 0;
if ($r_count > 0) {
$message = strval($r_count) . ' report files have been loaded successfully';
} elseif ($o_count === 0) {
$message = 'There are no report files to load';
} else {
$err_code = -1;
}
} else {
$err_code = -1;
if ($loaded > 0) {
$message = "Only {$loaded} of the {$r_count} report files have been loaded";
} else {
$message = "None of the {$r_count} report files has been loaded";
}
}
$result['error_code'] = $err_code;
$result['message'] = $message;
if ($r_count > 0) {
$result['results'] = $reps;
}
if ($o_count > 0) {
$result['other_errors'] = $others;
}
}
return $result;
}
}
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