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<?php |
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/** |
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* @author tarjei huse |
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* @package midcom.services.rcs |
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* @copyright The Midgard Project, http://www.midgard-project.org |
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* @license http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License |
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*/ |
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/** |
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* @package midcom.services.rcs |
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*/ |
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class midcom_services_rcs_backend_rcs extends midcom_services_rcs_backend |
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{ |
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protected function test_config() |
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{ |
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parent::test_config(); |
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if (!is_executable("{$this->config->get_bin_prefix()}ci")) { |
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throw new midcom_error("Cannot execute {$this->config->get_bin_prefix()}ci."); |
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} |
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} |
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/** |
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* Save a new revision |
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*/ |
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public function update(string $user_id, string $updatemessage = '') |
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{ |
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$filename = $this->generate_filename(); |
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$rcsfilename = "{$filename},v"; |
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// Store user identifier and IP address to the update string |
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$message = $_SERVER['REMOTE_ADDR'] . '|' . $updatemessage; |
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$message = $user_id . '|' . $message; |
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$message = escapeshellarg($message); |
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if (file_exists($rcsfilename)) { |
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$this->exec('co -q -f -l ' . escapeshellarg($filename)); |
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$command = 'ci -q -m' . $message . " {$filename}"; |
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} else { |
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$command = 'ci -q -i -t-' . $message . ' -m' . $message . " {$filename}"; |
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} |
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$this->write_object(); |
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$this->exec($command); |
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if (file_exists($rcsfilename)) { |
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chmod($rcsfilename, 0770); |
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} |
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} |
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public function get_revision(string $revision) : array |
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{ |
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$filepath = $this->generate_filename(); |
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try { |
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$this->exec('co -q -f -r' . escapeshellarg(trim($revision)) . " {$filepath} 2>/dev/null"); |
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} catch (midcom_error $e) { |
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$e->log(); |
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} finally { |
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if (!file_exists($filepath)) { |
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return []; |
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} |
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} |
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$data = file_get_contents($filepath); |
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$this->run_command("rm -f {$filepath}"); |
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$mapper = new midcom_helper_exporter_xml(); |
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return $mapper->data2array($data); |
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} |
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protected function load_history() : array |
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{ |
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$filename = $this->generate_filename() . ',v'; |
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if (!is_readable($filename)) { |
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debug_add('file ' . $filename . ' is not readable, returning empty result', MIDCOM_LOG_INFO); |
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return []; |
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} |
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$lines = $this->read_handle($this->config->get_bin_prefix() . 'rlog "' . $filename . '" 2>&1'); |
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$total = count($lines); |
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$revisions = []; |
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for ($i = 0; $i < $total; $i++) { |
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if (str_starts_with($lines[$i], "revision ")) { |
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$history = $this->parse_history_entry($lines[$i], $lines[$i + 1], $lines[$i + 2]); |
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$revisions[$history['revision']] = $history; |
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$i += 3; |
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while ( $i < $total |
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&& !str_starts_with($lines[$i], '----') |
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&& !str_starts_with($lines[$i], '=====')) { |
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$i++; |
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} |
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} |
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} |
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return $revisions; |
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} |
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private function parse_history_entry(string $line1, string $line2, string $line3) : array |
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{ |
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// Create potentially empty defaults |
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$history = ['date' => null, 'lines' => null, 'user' => null, 'ip' => null]; |
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// Revision number is in format |
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// revision 1.11 |
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$history['revision'] = preg_replace('/(\d+\.\d+).*/', '$1', substr($line1, 9)); |
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// Entry metadata is in format |
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// date: 2006/01/10 09:40:49; author: www-data; state: Exp; lines: +2 -2 |
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// NOTE: Time here appears to be stored as UTC according to http://parand.com/docs/rcs.html |
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$metadata_array = explode(';', $line2); |
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foreach ($metadata_array as $metadata) { |
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$metadata = trim($metadata); |
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if (str_starts_with($metadata, 'date:')) { |
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$history['date'] = strtotime(substr($metadata, 6)); |
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} elseif (str_starts_with($metadata, 'lines:')) { |
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$history['lines'] = substr($metadata, 7); |
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} |
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} |
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// Entry message is in format |
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// user:27b841929d1e04118d53dd0a45e4b93a|84.34.133.194|message |
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$message_array = explode('|', $line3); |
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if (count($message_array) == 1) { |
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$history['message'] = $message_array[0]; |
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} else { |
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if ($message_array[0] != 'Object') { |
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$history['user'] = $message_array[0]; |
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} |
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$history['ip'] = $message_array[1]; |
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$history['message'] = $message_array[2]; |
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} |
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return $history; |
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} |
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private function exec(string $command) |
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{ |
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$this->run_command($this->config->get_bin_prefix() . $command); |
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} |
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} |
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flack /
openpsa
