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File: zbzipproc.php
<?php /** * pluginbuddy_zbzipproc Class * * Extends the zip capability core class with proc specific capability * * Version: 1.0.0 * Author: * Author URI: * * @param $parent object Optional parent object which can provide functions for reporting, etc. * @return null * */ if ( !class_exists( "pluginbuddy_zbzipproc" ) ) { class pluginbuddy_zbzipproc extends pluginbuddy_zbzipcore { // Constants for file handling const ZIP_LOG_FILE_NAME = 'temp_zip_proc_log.txt'; const ZIP_ERRORS_FILE_NAME = 'last_proc_errors.txt'; const ZIP_WARNINGS_FILE_NAME = 'last_proc_warnings.txt'; const ZIP_OTHERS_FILE_NAME = 'last_proc_others.txt'; const ZIP_EXCLUSIONS_FILE_NAME = 'exclusions.txt'; const ZIP_INCLUSIONS_FILE_NAME = 'inclusions.txt'; // Possible executable path sets const DEFAULT_EXECUTABLE_PATHS = '/usr/local/bin::/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/bin'; const WINDOWS_EXECUTABLE_PATHS = ''; /** * method tag used to refer to the method and entities associated with it such as class name * * @var string */ public static $_method_tag = 'proc'; /** * This tells us whether this method is regarded as a "compatibility" method * * @var bool */ public static $_is_compatibility_method = false; /** * This tells us the dependencies of this method so they can be check to see if the method can be supported * * @var array */ public static $_method_dependencies = array( 'classes' => array(), 'functions' => array( 'proc_open', 'proc_close', 'proc_get_status', 'proc_terminate' ), 'extensions' => array(), 'files' => array(), 'check_func' => 'check_method_dependencies_static' ); /** * * get_method_tag_static() * * Get the static method tag in a static context * * @return string The method tag * */ public static function get_method_tag_static() { return self::$_method_tag; } /** * * get_is_compatibility_method_static() * * Get the compatibility method indicator in a static context * * @return bool True if is a compatibility method * */ public static function get_is_compatibility_method_static() { return self::$_is_compatibility_method; } /** * * get_method_dependencies_static() * * Get the method dependencies array in a static context * * @return array The dependencies of the method that is requires to be a supported method * */ public static function get_method_dependencies_static() { return self::$_method_dependencies; } /** * * check_method_dependencies_static() * * Allows additional method dependency checks beyond the standard in a static context * * @return bool True if additional dependency checks passed * */ public static function check_method_dependencies_static() { $result = false; // Need to additionally check the OS - need *nix type at least // Use UC for ease - this _should not? cause any ambiguity $os_name = strtoupper( PHP_OS ); // Currently we'll assume anything that doesn't look like Windows is *nix based if ( !( substr( $os_name, 0, 3 ) === 'WIN') ) { // We're ok as meet dependency that this isn't Windows based OS $result = true; } return $result; } /** * __construct() * * Default constructor. * * @param reference &$parent [optional] Reference to the object containing the status() function for status updates. * @return null * */ public function __construct( &$parent = NULL ) { parent::__construct( $parent ); // Override some of parent defaults $this->_method_details[ 'attr' ] = array_merge( $this->_method_details[ 'attr' ], array( 'name' => 'Proc Method', 'compatibility' => self::$_is_compatibility_method ) ); // Now set up the default executable paths (not merging but setting) // Note: Parent constructor set the os type value switch ( $this->get_os_type() ) { case self::OS_TYPE_NIX: $this->set_executable_paths( explode( PATH_SEPARATOR, self::DEFAULT_EXECUTABLE_PATHS ), false); break; case self::OS_TYPE_WIN: $this->set_executable_paths( explode( PATH_SEPARATOR, self::WINDOWS_EXECUTABLE_PATHS ), false); // Need to merge in ABSPATH here because we cannot set that in the defaults - it is prepended $this->set_executable_paths( array( rtrim( ABSPATH, DIRECTORY_SEPARATOR ) ) ); break; default: // Log error and leave paths empty pb_backupbuddy::status( 'details', sprintf( __('Unknown OS type (%1$s) could not set executable paths','it-l10n-backupbuddy' ), $this->get_os_type() ) ); } } /** * __destruct() * * Default destructor. * * @return null * */ public function __destruct( ) { parent::__destruct(); } /** * get_method_tag() * * Returns the (static) method tag * * @return string The method tag * */ public function get_method_tag() { return self::$_method_tag; } /** * get_is_compatibility_method() * * Returns the (static) is_compatibility_method boolean * * @return bool * */ public function get_is_compatibility_method() { return self::$_is_compatibility_method; } /** * get_command_path() * * This returns the path for the requested command from the method details * If not found then will return empty string which is the same as if the * command is being accessed through PATH * * @return string Path for command, trimmed - may be empty * */ protected function get_command_path( $command = self::COMMAND_UNKNOWN_PATH ) { $result = ''; switch( $command ) { case self::COMMAND_ZIP_PATH: // If there is a common path use it otherwise look for the command specific path if ( isset( $this->_method_details[ 'param' ][ 'path' ] ) ) { $result = trim( $this->_method_details[ 'param' ][ 'path' ] ); } elseif ( isset( $this->_method_details[ 'param' ][ 'zip' ][ 'path' ] ) ) { $result = trim( $this->_method_details[ 'param' ][ 'zip' ][ 'path' ] ); } break; case self::COMMAND_UNZIP_PATH: // If there is a common path use it otherwise look for the command specific path if ( isset( $this->_method_details[ 'param' ][ 'path' ] ) ) { $result = trim( $this->_method_details[ 'param' ][ 'path' ] ); } elseif ( isset( $this->_method_details[ 'param' ][ 'unzip' ][ 'path' ] ) ) { $result = trim( $this->_method_details[ 'param' ][ 'unzip' ][ 'path' ] ); } break; default: // Return the empty string default for now } return $result; } /** * set_zip_version() * * This sets the zip version information in the method details * Note: pre-v3 zip running "zip -v" will not produce the required output because * there is no tty attached (when running through exec() or equivalent), instead * it will produce a zip file.Currently we'll just detect that and set the version * as 2.0 and not set the info. * TODO: We could parse the zip file to get the version but also considering doing * that in the is_available() test where we already created a zip file. * TODO: Consider testing if method can zip and only then run the test * TODO: This needs refactoring to make it cleaner * * @param int $major Value to use if none found or override true * @param int $minor Value to use if none found or override true * @param bool $override True to use passed in value(s) regardless * @return object This object reference * */ protected function set_zip_version( $major = 0, $minor = 0, $override = false ) { $exitcode = 127; $output = array(); $zippath = ''; $command = ''; $matches = array(); $info = ''; // If we have been given a value to use with override then just use it if ( ( ( is_int( $major) ) && ( 0 < $major ) && ( is_int( $minor ) ) ) && ( true === $override ) ) { // Set the given version regardless $this->_method_details[ 'param' ][ 'zip' ][ 'version' ] = array( 'major' => $major, 'minor' => $minor ); return $this; } // Get the command path for the zip command - should return a trimmed string $zippath = $this->get_command_path( self::COMMAND_ZIP_PATH ); // Add the trailing slash if required $command = $this->slashify( $zippath ) . 'zip -v'; //@exec( $command, $output, $exitcode ); // Get a temporary file to use for command output $outfile_name = tempnam( sys_get_temp_dir(), uniqid( 'pb_' ) ); // Make sure we only do this if we have a file we can write to if ( is_string( $outfile_name ) && is_writable( $outfile_name ) ) { $descriptorspec = array( 0 => array( "pipe", "r" ), 1 => array( "file", $outfile_name, "w" ), 2 => array( "file", "/dev/null", "a" ) ); $process = NULL; // Maybe it doesn't work $process = @proc_open( $command, $descriptorspec, $pipes ); if ( is_resource( $process ) ) { fclose( $pipes[0] ); // Never want to send input so just close it $pstatus = proc_get_status( $process ); // Make sure we only do 4 loop max $count = 0; while ( true == $pstatus[ 'running'] && ( $count++ < 4 ) ) { usleep( 500000 ); $pstatus = proc_get_status( $process ); } if ( true === $pstatus[ 'running' ] ) { // Hmm, shouldn't still be running, try to kill it and move on @proc_terminate( $process ); // Get status again and see if now not running, if so get exit code } else { // Process finished normally so get exit code for possible use $exitcode = $pstatus[ 'exitcode' ]; } // Ignore any close issue, shouldn't get stuck here but it is possible if // we process was still running and we failed to terminate it - tricky one // to overcome but _should_ be rare @proc_close( $process ); } } // Note: if we couldn't create a process just fall through silently if ( 0 === $exitcode ) { // Put the file content into an array try { $outfile = new SplFileObject( $outfile_name, "rb" ); while( !$outfile->eof() ) { // Need to trim line endings because of imploding with PHP_EOL later $output[] = rtrim( $outfile->current() ); $outfile->next(); } unset( $outfile ); } catch ( Exception $e ) { // Maybe the file didn't exist for some reason? // In any case just fall through silently } // Should be good output to try at least // If this has a zip file signature then it must be pre-v3 zip $z_data = unpack( 'Vsig', $output[0] ); if ( 0x04034b50 == $z_data[ 'sig' ] ) { // TODO: Consider that we could use unzip -Z -v on this file and parse the // output for the Central Dir info on what version of zip created the file. // Currently, where this function is called, we don't know if we have unzip // so we can't assume - with a rejig we could call this later and use unzip // if available. // Can't tell which 2.X version, cannot populate $info $major = 2; $minor = 0; } else { // Doesn't appear to be a zip file so should be version info // Expect format like: This is Zip 3.0 (July 5th 2008)... // This is Zip 3.1c BETA (June 22nd 2010)... // The match should take only the major/minor digits and ignore any following alpha // May extend to capture the alpha and also whether BETA indicated but not currently // required. foreach ( $output as $line ) { if ( preg_match( '/^\s*(this)\s+(is)\s+(zip)\s+(?P<major>\d)\.(?P<minor>\d+)/i', $line, $matches ) ) { $major = (int)$matches[ 'major' ]; $minor = (int)$matches[ 'minor' ]; break; } } // If we didn't match a version then suspect this is still not valid version info if ( !empty( $matches ) ) { // Now create the info string // Note: not worth compressing as that gives a larger string after converting // from binary to hex format for saving $info = implode( PHP_EOL, $output ); $this->_method_details[ 'param' ][ 'zip' ][ 'info' ] = $info; } } } // Now use either what we got or what we were given... if ( ( is_int( $major) ) && ( 0 < $major ) && ( is_int( $minor ) ) ) { // Set the given version regardless $this->_method_details[ 'param' ][ 'zip' ][ 'version' ] = array( 'major' => $major, 'minor' => $minor ); } // Catch-all cleanup of the output file if ( @file_exists( $outfile_name ) ) { @unlink( $outfile_name ); } return $this; } /** * get_zip_version() * * This gets the zip version as an array of major/minor or returns false if not known * TODO: Pass parameter to specify what format to return in * * @return array|bool Returns array(major, minor) or false if not known * */ protected function get_zip_version() { $result = $this->_method_details[ 'param' ][ 'zip' ][ 'version' ]; if ( 0 === $result[ 'major' ] ) { $result = false; } return $result; } /** * set_unzip_version() * * This sets the zip version information in the method details * TODO: This needs refactoring to make it cleaner * * @param int $major Value to use if none found or override true * @param int $minor Value to use if none found or override true * @param bool $override True to use passed in value(s) regardless * @return object This object reference * */ protected function set_unzip_version( $major = 0, $minor = 0, $override = false ) { $exitcode = 127; $output = array(); $zippath = ''; $command = ''; $matches = array(); $info = ''; // If we have been given a value to use with override then just use it if ( ( ( is_int( $major) ) && ( 0 < $major ) && ( is_int( $minor ) ) ) && ( true === $override ) ) { // Set the given version regardless $this->_method_details[ 'param' ][ 'unzip' ][ 'version' ] = array( 'major' => $major, 'minor' => $minor ); return $this; } // Get the command path for the unzip command - should return a trimmed string $zippath = $this->get_command_path( self::COMMAND_UNZIP_PATH ); // Add the trailing slash if required $command = $this->slashify( $zippath ) . 'unzip -v'; //@exec( $command, $output, $exitcode ); // Get a temporary file to use for command output $outfile_name = tempnam( sys_get_temp_dir(), uniqid( 'pb_' ) ); // Make sure we only do this if we have a file we can write to if ( is_string( $outfile_name ) && is_writable( $outfile_name ) ) { $descriptorspec = array( 0 => array( "pipe", "r" ), 1 => array( "file", $outfile_name, "w" ), 2 => array( "file", "/dev/null", "a" ) ); $process = NULL; // Maybe it doesn't work $process = @proc_open( $command, $descriptorspec, $pipes ); if ( is_resource( $process ) ) { fclose( $pipes[0] ); // Never want to send input so just close it $pstatus = proc_get_status( $process ); // Make sure we only do 4 loop max $count = 0; while ( true == $pstatus[ 'running'] && ( $count++ < 4 ) ) { usleep( 500000 ); $pstatus = proc_get_status( $process ); } if ( true === $pstatus[ 'running' ] ) { // Hmm, shouldn't still be running, try to kill it and move on @proc_terminate( $process ); // Get status again and see if now not running, if so get exit code } else { // Process finished normally so get exit code for possible use $exitcode = $pstatus[ 'exitcode' ]; } // Ignore any close issue, shouldn't get stuck here but it is possible if // we process was still running and we failed to terminate it - tricky one // to overcome but _should_ be rare @proc_close( $process ); } } // Note: if we couldn't create a process just fall through silently if ( 0 === $exitcode ) { // Put the file content into an array try { $outfile = new SplFileObject( $outfile_name, "rb" ); while( !$outfile->eof() ) { // Need to trim line endings because of imploding with PHP_EOL later $output[] = rtrim( $outfile->current() ); $outfile->next(); } unset( $outfile ); } catch ( Exception $e ) { // Maybe the file didn't exist for some reason? // In any case just fall through silently } // Should be good output to try at least foreach ( $output as $line ) { if ( preg_match( '/^\s*(unzip)\s+(?P<major>\d)\.(?P<minor>\d+)/i', $line, $matches ) ) { $major = (int)$matches[ 'major' ]; $minor = (int)$matches[ 'minor' ]; break; } } // Now create the info string // Note: not worth compressing as that gives a larger string after converting // from binary to hex format for saving $info = implode( PHP_EOL, $output ); $this->_method_details[ 'param' ][ 'unzip' ][ 'info' ] = $info; } // Now use either what we got or what we were given... if ( ( is_int( $major) ) && ( 0 < $major ) && ( is_int( $minor ) ) ) { // Set the given version regardless $this->_method_details[ 'param' ][ 'unzip' ][ 'version' ] = array( 'major' => $major, 'minor' => $minor ); } // Catch-all cleanup of the output file if ( @file_exists( $outfile_name ) ) { @unlink( $outfile_name ); } return $this; } /** * get_unzip_version() * * This gets the unzip version as an array of major/minor or returns false if not known * TODO: Pass parameter to specify what format to return in * * @return array|bool Returns array(major, minor) or false if not known * */ protected function get_unzip_version() { $result = $this->_method_details[ 'param' ][ 'unzip' ][ 'version' ]; if ( 0 === $result[ 'major' ] ) { $result = false; } return $result; } /** * get_zip_supports_logfile() * * This returns true if the zip in use is able to support logfile usage for * logging progress of zip operation * * @return bool True if logfile supported, otherwise false * */ protected function get_zip_supports_log_file() { $result = false; // Currently check based just on the zip major version // TODO: decide if better to respond based on the available options if ( 3 <= $this->_method_details[ 'param' ][ 'zip' ][ 'version' ][ 'major' ] ) { $result = true; } return $result; } /** * is_available() * * A function that tests for the availability of the specific method and its available modes. Will test for * multiple modes (zip & unzip) and only return false if neither is available. Actual available modes will * be indicated in the method attributes. * * Note: in this case as the zip and unzip capabilities are provided by external commands we need to test * for the availability of both of them and set attributes accordingly * * @param string $tempdir Temporary directory to use for any test files (must be writeable) * @return bool True if the method is available for at least one mode, false otherwise * */ public function is_available( $tempdir ) { $result = false; switch ( $this->get_os_type() ) { case self::OS_TYPE_NIX: $result = $this->is_available_linux( $tempdir ); break; case self::OS_TYPE_WIN: $result = $this->is_available_windows( $tempdir ); break; default: $result = false; } return $result; } /** * is_available_windows() * * A function that tests for the availability of the specific method and its available modes. Will test for * multiple modes (zip & unzip) and only return false if neither is available. Actual available modes will * be indicated in the method attributes. * * @param string $tempdir Temporary directory to use for any test files (must be writeable) * @return bool True if the method is available for at least one mode, false otherwise * */ protected function is_available_windows( $tempdir ) { // Just return false silently otherwise we'd be logging repeatedly... //pb_backupbuddy::status( 'details', $this->_method_tag . __(' method not supported on Windows.','it-l10n-backupbuddy' ) ); return false; } /** * is_available_linux() * * A function that tests for the availability of the specific method and its available modes. Will test for * multiple modes (zip & unzip) and only return false if neither is available. Actual available modes will * be indicated in the method attributes. * * @param string $tempdir Temporary directory to use for any test files (must be writeable) * @return bool True if the method is available for at least one mode, false otherwise * */ protected function is_available_linux( $tempdir ) { $result = false; $pending_result = false; $found_zip = false; $pstatus = array(); // This is a safety value in case something odd happens $exec_exit_code = 127; if ( function_exists( 'proc_open' ) && function_exists( 'proc_close' ) && function_exists( 'proc_get_status' ) && function_exists( 'proc_terminate' ) ) { $candidate_paths = $this->_executable_paths; // We are searching for zip using the list of possible paths while ( ( false == $found_zip ) && ( !empty( $candidate_paths ) ) ) { // Make sure it is clean of leading/trailing whitespace $path = trim( array_shift( $candidate_paths ) ); pb_backupbuddy::status( 'details', __( 'Trying executable path for zip:','it-l10n-backupbuddy' ) . ' `' . $path . '`.' ); $test_file = $tempdir . 'temp_test_' . uniqid() . '.zip'; $command = 'exec ' . $this->slashify( $path ) . 'zip "' . $test_file . '" "' . __FILE__ . '"'; $descriptorspec = array( 0 => array( "pipe", "r" ), 1 => array( "file", "/dev/null", "a" ), 2 => array( "file", "/dev/null", "a" ) ); $process = NULL; // Maybe it doesn't work $process = @proc_open( $command, $descriptorspec, $pipes ); if ( is_resource( $process ) ) { fclose( $pipes[0] ); // Never want to send input so just close it $pstatus = proc_get_status( $process ); // Make sure we only do 4 loop max $count = 0; while ( true == $pstatus[ 'running'] && ( $count++ < 4 ) ) { usleep( 500000 ); $pstatus = proc_get_status( $process ); } if ( true === $pstatus[ 'running' ] ) { // Hmm, shouldn't still be running, try to kill it and move on @proc_terminate( $process ); // Get status again and see if now not running, if so get exit code } else { // Process finished normally so get exit code for possible use $exec_exit_code = $pstatus[ 'exitcode' ]; } // Ignore any close issue, shouldn't get stuck here but it is possible if // we process was still running and we failed to terminate it - tricky one // to overcome but _should_ be rare @proc_close( $process ); // Must have both a file and a success exit code to consider this successful if ( @file_exists( $test_file ) && ( 0 === $exec_exit_code ) ) { // Set the parameter to be remembered (note: path without trailing slash) $this->_method_details[ 'param' ][ 'zip' ][ 'path' ] = $path; // The zip operation was successful so we can at least zip and archive $this->_method_details[ 'attr' ][ 'is_zipper' ] = true; $this->_method_details[ 'attr' ][ 'is_archiver' ] = true; pb_backupbuddy::status( 'details', __('Proc test (zip) PASSED.','it-l10n-backupbuddy' ) ); $result = true; // TODO: Consider parsing zip file to get version of zip that created it. This may seem odd // but pre-v3 zip it's not possible to run "zip -v" through exec() or equivalent as it only // provides the required output if a tty is attached, otherwise it creates a zip file. We // might consider parsing the created zip file but as we have already created one here we // might as well use it // This will break us out of the loop $found_zip = true; } else { // Deal with the possible failure causes if ( !@file_exists( $test_file ) ) { pb_backupbuddy::status( 'details', __('Proc test (zip) FAILED: Test zip file not found.','it-l10n-backupbuddy' ) ); } if ( 0 === $exec_exit_code ) { $error_string = $exec_exit_code; pb_backupbuddy::status( 'details', __('Proc test (zip) FAILED: proc Exit Code: ','it-l10n-backupbuddy' ) . $error_string ); } $result = false; } // Remove the test zip file if it was created if ( @file_exists( $test_file ) ) { if ( !@unlink( $test_file ) ) { pb_backupbuddy::status( 'details', sprintf( __('Proc test (zip) unable to delete test file (%s)','it-l10n-backupbuddy' ), $test_file ) ); } } } else { pb_backupbuddy::status( 'details', __('Proc test FAILED: Unable to create test zip file process.','it-l10n-backupbuddy' ) ); $result = false; } } if ( false == $found_zip ) { // Never found zip on any candidate path pb_backupbuddy::status( 'details', __('Proc test Failed: Unable to find zip executable on any specified path.','it-l10n-backupbuddy' ) ); $result = false; } // Remember zip result and reset for unzip test $pending_result = $result; $result = false; // See if we can determine zip version and possibly available options. This can help us // determine how to execute operations such as creating a zip file if ( true === $found_zip ) { $this->set_zip_version(); } // Reset the candidate paths for a full search for unzip $candidate_paths = $this->_executable_paths; // Reset the safety value in case $exec_exit_code = 127; // New search $found_zip = false; // Need to create a test zip file - here's one I prepared earlier // containing the one file test.txt (with content "Hello World") // Can use this for all case tests and delete at end $test_file = $tempdir . 'temp_test_' . uniqid() . '.zip'; @file_put_contents( $test_file, base64_decode( "UEsDBAoAAAAAAC8ELUHj5ZWwDAAAAAwAAAAIABwAdGVzdC50eHRVVAkAA8obUVDjG1FQdXgLAAEE+AEAAAQUAAAASGVsbG8gV29ybGQKUEsBAh4DCgAAAAAALwQtQePllbAMAAAADAAAAAgAGAAAAAAAAQAAAKSBAAAAAHRlc3QudHh0VVQFAAPKG1FQdXgLAAEE+AEAAAQUAAAAUEsFBgAAAAABAAEATgAAAE4AAAAAAA==" ) ); // We are searching for zip using the list of possible paths while ( ( false == $found_zip ) && ( !empty( $candidate_paths ) ) ) { // Make sure it is clean of leading/trailing whitespace $path = trim( array_shift( $candidate_paths ) ); pb_backupbuddy::status( 'details', __( 'Trying executable path for unzip:','it-l10n-backupbuddy' ) . ' `' . $path . '`.' ); $command = 'exec ' . $this->slashify( $path ) . 'unzip -qt ' . ' "' . $test_file . '" "test.txt"'; $descriptorspec = array( 0 => array( "pipe", "r" ), 1 => array( "file", "/dev/null", "a" ), 2 => array( "file", "/dev/null", "a" ) ); $process = NULL; // Maybe it doesn't work $process = @proc_open( $command, $descriptorspec, $pipes ); if ( is_resource( $process ) ) { fclose( $pipes[0] ); // Never want to send input so just close it $pstatus = proc_get_status( $process ); // Make sure we only do 4 loop max $count = 0; while ( true == $pstatus[ 'running'] && ( $count++ < 4 ) ) { usleep( 500000 ); $pstatus = proc_get_status( $process ); } if ( true === $pstatus[ 'running' ] ) { // Hmm, shouldn't still be running, try to kill it and move on @proc_terminate( $process ); // Get status again and see if now not running, if so get exit code } else { // Process finished normally so get exit code for possible use $exec_exit_code = $pstatus[ 'exitcode' ]; } // Ignore any close issue, shouldn't get stuck here but it is possible if // we process was still running and we failed to terminate it - tricky one // to overcome but _should_ be rare @proc_close( $process ); if ( $exec_exit_code == 0 ) { // Set the parameter to be remembered (note: path without trailing slash) $this->_method_details[ 'param' ][ 'unzip' ][ 'path' ] = $path; // The unzip operation was successful so we can at least unzip // Note: we do not want to use this for checking yet $this->_method_details[ 'attr' ][ 'is_unzipper' ] = true; pb_backupbuddy::status( 'details', __('Proc test (unzip) PASSED.','it-l10n-backupbuddy' ) ); $result = true; // This will break us out of the loop $found_zip = true; } else { $error_string = $exec_exit_code; pb_backupbuddy::status( 'details', __('Proc test (unzip) FAILED: Test unzip file test failed.','it-l10n-backupbuddy' ) ); pb_backupbuddy::status( 'details', __('Proc Exit Code: ','it-l10n-backupbuddy' ) . $error_string ); $result = false; } } else { pb_backupbuddy::status( 'details', __('Proc test FAILED: Unable to create test unzip file process.','it-l10n-backupbuddy' ) ); $result = false; } } // Remove the test zip file if it was created if ( @file_exists( $test_file ) ) { if ( !@unlink( $test_file ) ) { pb_backupbuddy::status( 'details', sprintf( __('Proc test (unzip) unable to delete test file (%s)','it-l10n-backupbuddy' ), $test_file ) ); } } // If we didn't find unzip anywhere (or maybe found it but it failed) then log it if ( false == $found_zip ) { pb_backupbuddy::status( 'details', __('Proc test Failed: Unable to find unzip executable on any specified path.','it-l10n-backupbuddy' ) ); $result = false; } else { // See if we can determine unzip version and possibly available options. This can help us // determine how to execute operations such as unzipping a file $this->set_unzip_version(); } } else { pb_backupbuddy::status( 'details', __('Proc test FAILED: One or more required function do not exist.','it-l10n-backupbuddy' ) ); $result = false; } // If we found both zip and unzip then compare the paths and if the same then set the common path if ( $pending_result && $result ) { if ( $this->_method_details[ 'param' ][ 'zip' ][ 'path' ] === $this->_method_details[ 'param' ][ 'unzip' ][ 'path' ] ) { $this->_method_details[ 'param' ][ 'path' ] = $this->_method_details[ 'param' ][ 'zip' ][ 'path' ]; } } // Our result will be true if we found either or both of zip and unzip // The method attributes will tell which is available $result = ( $pending_result || $result ); return $result; } /** * create() * * A function that creates an archive file * Always cleans up after itself * * The $excludes will be a list or relative path excludes if the $listmaker object is NULL otehrwise * will be absolute path excludes and relative path excludes can be had from the $listmaker object * * @param string $zip Full path & filename of ZIP Archive file to create * @param string $dir Full path of directory to add to ZIP Archive file * @parame array $excludes List of either absolute path exclusions or relative exclusions * @param string $tempdir Full path of directory for temporary usage * @param object $listmaker The object from which we can get an inclusions list * @return bool True if the creation was successful, false otherwise * */ public function create( $zip, $dir, $excludes, $tempdir, $listmaker = NULL ) { $result = false; switch ( $this->get_os_type() ) { case self::OS_TYPE_NIX: $result = $this->create_linux( $zip, $dir, $excludes, $tempdir, $listmaker ); break; case self::OS_TYPE_WIN: $result = $this->create_windows( $zip, $dir, $excludes, $tempdir, $listmaker ); break; default: $result = false; } return $result; } /** * create_windows() * * A function that creates an archive file on Linux * Always cleans up after itself * * The $excludes will be a list or relative path excludes if the $listmaker object is NULL otehrwise * will be absolute path excludes and relative path excludes can be had from the $listmaker object * * @param string $zip Full path & filename of ZIP Archive file to create * @param string $dir Full path of directory to add to ZIP Archive file * @parame array $excludes List of either absolute path exclusions or relative exclusions * @param string $tempdir Full path of directory for temporary usage * @param object $listmaker The object from which we can get an inclusions list * @return bool True if the creation was successful, false otherwise * */ protected function create_windows( $zip, $dir, $excludes, $tempdir, $listmaker ) { // This should never be called but just in case return false silently //pb_backupbuddy::status( 'details', __('The ','it-l10n-backupbuddy' ) . $this->get_method_tag() . __(' method is not currently supported for archiving.','it-l10n-backupbuddy' ) ); return false; } /** * create_linux() * * A function that creates an archive file on Linux * Always cleans up after itself * * The $excludes will be a list or relative path excludes if the $listmaker object is NULL otehrwise * will be absolute path excludes and relative path excludes can be had from the $listmaker object * * @param string $zip Full path & filename of ZIP Archive file to create * @param string $dir Full path of directory to add to ZIP Archive file * @parame array $excludes List of either absolute path exclusions or relative exclusions * @param string $tempdir Full path of directory for temporary usage * @param object $listmaker The object from which we can get an inclusions list * @return bool True if the creation was successful, false otherwise * */ protected function create_linux( $zip, $dir, $excludes, $tempdir, $listmaker ) { $exitcode = 0; $output = array(); $zippath = ''; $command = ''; $temp_zip = ''; $excluding_additional = false; $exclude_count = 0; $exclusions = array(); $have_zip_errors = false; $zip_errors_count = 0; $zip_errors = array(); $have_zip_warnings = false; $zip_warnings_count = 0; $zip_warnings = array(); $have_zip_additions = false; $zip_additions_count = 0; $zip_additions = array(); $have_zip_debug = false; $zip_debug_count = 0; $zip_debug = array(); $have_zip_other = false; $zip_other_count = 0; $zip_other = array(); $zip_using_log_file = false; $logfile_name = ''; $zip_ignoring_symlinks = false; // The basedir must have a trailing directory separator $basedir = ( rtrim( trim( $dir ), DIRECTORY_SEPARATOR ) ) . DIRECTORY_SEPARATOR; if ( empty( $tempdir ) || !@file_exists( $tempdir ) ) { pb_backupbuddy::status( 'details', __('Temporary working directory must be available.','it-l10n-backupbuddy' ) ); return false; } // Tell which zip version is being used $version = $this->get_zip_version(); if ( true === is_array( $version ) ) { ( ( 2 == $version[ 'major' ] ) && ( 0 == $version[ 'minor' ] ) ) ? $version[ 'minor' ] = 'X' : true ; pb_backupbuddy::status( 'details', sprintf( __( 'Using zip version: %1$s.%2$s', 'it-l10n-backupbuddy' ), $version[ 'major' ], $version[ 'minor' ] ) ); } else { $version = array( "major" => "X", "minor" => "Y" ); pb_backupbuddy::status( 'details', sprintf( __( 'Using zip version: %1$s.%2$s', 'it-l10n-backupbuddy' ), $version[ 'major' ], $version[ 'minor' ] ) ); } // Get the command path for the zip command - should return a trimmed string $zippath = $this->get_command_path( self::COMMAND_ZIP_PATH ); // Determine if we are using an absolute path if ( !empty( $zippath ) ) { pb_backupbuddy::status( 'details', __( 'Using absolute zip path: ','it-l10n-backupbuddy' ) . $zippath ); } // Add the trailing slash if required $command = $this->slashify( $zippath ) . 'zip'; // Hardcoding some additional options for now //$command .= ' -q -r'; // Note: no longer using quiet _but_ may use it if output is being sent to log file $command .= ' -r'; // Check if the version of zip in use supports log file (which will help with memory usage for large sites) if ( $this->get_zip_supports_log_file() ) { // Choose to use log file so quieten stdout - we'll set up the log file later $command .= ' -q'; $zip_using_log_file = true; } // Check if we need to turn off compression by settings (faster but larger backup) if ( true !== $this->get_compression() ) { $command .= ' -0'; pb_backupbuddy::status( 'details', __('Zip archive creation compression disabled based on settings.','it-l10n-backupbuddy' ) ); } else { pb_backupbuddy::status( 'details', __('Zip archive creation compression enabled based on settings.','it-l10n-backupbuddy' ) ); } // Check if ignoring (not following) symlinks if ( true === $this->get_ignore_symlinks() ) { // Want to not follow symlinks so set command option and set flag for later use if ( $this->get_os_type() != self::OS_TYPE_WIN ) { $command .= ' -y'; $zip_ignoring_symlinks = true; } pb_backupbuddy::status( 'details', __('Zip archive creation symbolic links will not be followed based on settings.','it-l10n-backupbuddy' ) ); } else { pb_backupbuddy::status( 'details', __('Zip archive creation symbolic links will be followed based on settings.','it-l10n-backupbuddy' ) ); } // Check if we are ignoring warnings - meaning can still get a backup even // if, e.g., some files cannot be read if ( true === $this->get_ignore_warnings() ) { // Note: warnings are being ignored but will still be gathered and logged pb_backupbuddy::status( 'details', __('Zip archive creation warnings will be ignored based on settings.','it-l10n-backupbuddy' ) ); } else { pb_backupbuddy::status( 'details', __('Zip archive creation warnings will not be ignored based on settings.','it-l10n-backupbuddy' ) ); } // Delete any existing zip file of same name - really this should never happen if ( @file_exists( $zip ) ) { pb_backupbuddy::status( 'details', __('Existing ZIP Archive file will be replaced.','it-l10n-backupbuddy' ) ); @unlink( $zip ); } // Now we'll set up the logging to file if required - use full logging // Note: we always use this file either for command line log option or captured output // so always set it $logfile_name = $tempdir . self::ZIP_LOG_FILE_NAME; if ( true === $zip_using_log_file ) { // Using the command line logfile option $command .= " -lf '{$logfile_name}' -li"; // Actual command output will be sent to the bit-bucket in the sky // TODO: if we want to capture debug output we'll need a real file // is it safe to use the same filename (probably not) $output = '/dev/null'; } else { // Old stylee zip not supporting logfile so redirect output to the file instead $output = $logfile_name; } // Set temporary directory to store ZIP while it's being generated. $command .= " -b '{$tempdir}'"; // If warnings are being ignored we can tell zip to create the zip archive in the final // location - otherwise we must put it in a temporary location and move it later only // if there are no warnings. This copes with the case where (this) controlling script // gets timed out by the server and if the file were created in the final location with // warnings that should not be ignored we cannot prevent it being created. The -MM option // could be used but this prevents us catching such warnings and being able to report // them to the user in the case where the script hasn't been terminated. Additionally the // -MM option would bail out on the first encountered problem and so if there were a few // problems they would each not be found until the current one is fixed and try again. if ( true === $this->get_ignore_warnings() ) { $temp_zip = $zip; } else { $temp_zip = $tempdir . basename( $zip ); } $command .= " '{$temp_zip}' ."; // Now work out exclusions dependent on what we have been given if ( is_object( $listmaker ) && ( defined( 'USE_EXPERIMENTAL_ZIPBUDDY_INCLUSION' ) && ( true === USE_EXPERIMENTAL_ZIPBUDDY_INCLUSION ) ) ) { // We're doing an inclusion operation, but first we'll just show the exclusiosn // For zip we need relative rather than absolute exclusion spaths $exclusions = $listmaker->get_relative_excludes( $basedir ); if ( count( $exclusions ) > 0 ) { pb_backupbuddy::status( 'details', __('Calculating directories to exclude from backup.','it-l10n-backupbuddy' ) ); $excluding_additional = false; $exclude_count = 0; foreach ( $exclusions as $exclude ) { if ( !strstr( $exclude, 'backupbuddy_backups' ) ) { // Set variable to show we are excluding additional directories besides backup dir. $excluding_additional = true; } pb_backupbuddy::status( 'details', __('Excluding','it-l10n-backupbuddy' ) . ': ' . $exclude ); $exclude_count++; } } // Get the list of inclusions to process $inclusions = $listmaker->get_terminals(); // For each directory we need to put the "wildcard" on the end foreach ( $inclusions as &$inclusion ) { if ( is_dir( $inclusion ) ) { $inclusion .= DIRECTORY_SEPARATOR . "*"; } // Remove directory path prefix excluding leading slash to make relative (needed for zip) $inclusion = str_replace( rtrim( $basedir, DIRECTORY_SEPARATOR ), '', $inclusion ); } // Now create the inclusions file in the tempdir // And update the command options $ifile = $tempdir . self::ZIP_INCLUSIONS_FILE_NAME; if ( file_exists( $ifile ) ) { @unlink( $ifile ); } file_put_contents( $ifile, implode( PHP_EOL, $inclusions ) . PHP_EOL . PHP_EOL ); $command .= " -i@" . "'{$ifile}'"; } else { // We're doing an exclusion operation //$command .= "-i '*' "; // Not needed. Zip defaults to doing this. Removed July 10, 2012 for v3.0.41. // Since we had no $listmaker object or not using it get the standard relative excludes to process $exclusions = $excludes; if ( count( $exclusions ) > 0 ) { // Handle exclusions by placing them in an exclusion text file. $exclusion_file = $tempdir . self::ZIP_EXCLUSIONS_FILE_NAME; $this->_render_exclusions_file( $exclusion_file, $exclusions ); pb_backupbuddy::status( 'details', sprintf( __( 'Using exclusion file `%1$s`', 'it-l10n-backupbuddy' ), $exclusion_file ) ); $command .= ' -x@' . "'{$exclusion_file}'"; } } // Remember the current directory and change to the directory being added so that "." is valid in command $working_dir = getcwd(); chdir( $dir ); // Execute ZIP command - we don't care a about Windows here because this method isn't supported yet // Prepend "exec" so that spawned process becomes the actual zip process $command = 'exec ' . $command; pb_backupbuddy::status( 'details', $this->get_method_tag() . __(' command (Linux)','it-l10n-backupbuddy' ) . ': ' . $command ); // Set stdin to be a pipe that we'll close immediately anyway // Send stdout to a file or dump it dependent on the zip version (the destination is set above) // Send stderr to wherever stdout is going (on pre-v3 zip we need stderr for warnings) $descriptorspec = array( 0 => array( "pipe", "r" ), 1 => array( "file", $output, "w" ), 2 => array( "file", $output, "w" ) ); $process = proc_open( $command, $descriptorspec, $pipes ); if ( is_resource( $process ) ) { fclose( $pipes[ 0 ] ); // Never want to send input so just close it $status = proc_get_status( $process ); while ( true == $status[ 'running'] ) { pb_backupbuddy::status( 'details', __('Zip Archive file creation in progress.','it-l10n-backupbuddy' ) ); sleep(5); $status = proc_get_status( $process ); // Could also check for persistent final zip file (i.e., present over two loops) // which might mean we are somehow not seeing the process as finished so we should // terminate it and close it - and indicate some failure } $exitcode = $status[ 'exitcode' ]; proc_close( $process ); } else { // Must clean up temporary directory pb_backupbuddy::status( 'details', __('Failed to create Zip process: ','it-l10n-backupbuddy' ) ); pb_backupbuddy::status( 'details', __('Removing temporary directory.','it-l10n-backupbuddy' ) ); if ( !( $this->delete_directory_recursive( $tempdir ) ) ) { pb_backupbuddy::status( 'details', __('Temporary directory could not be deleted: ','it-l10n-backupbuddy' ) . $tempdir ); } chdir( $working_dir ); return false; } // Set current working directory back to where we were chdir( $working_dir ); // Convenience for handling different scanarios $result = false; // Log file is always present - either capturing output or as command line option // Always scan the logfile for warnings, etc. and show warnings even if user has chosen to ignore them try { $logfile = new SplFileObject( $logfile_name, "rb" ); while( !$logfile->eof() ) { $line = $logfile->current(); $id = $logfile->key(); // Use the line number as unique key for later sorting $logfile->next(); if ( preg_match( '/^\s*(zip warning:)/i', $line ) ) { // Looking for specific types of warning - in particular want the warning that // indicates a file couldn't be read as we want to treat that as a "skipped" // warning that indicates that zip flagged this as a potential problem but // created the zip file anyway - but it would have generated the non-zero exit // code of 18 and we key off that later. All other warnings are not considered // reasons to return a non-zero exit code whilst still creating a zip file so // we'll follow the lead on that and not have other warning types halt the backup. // So we'll try and look for a warning output that looks like it is file related... if ( preg_match( '/^\s*(zip warning:)\s*([^:]*:)\s*(.*)/i', $line, $matches ) ) { // Matched to what looks like a file related warning so check particular cases switch ( strtolower( $matches[ 2 ] ) ) { case "could not open for reading:": $zip_warnings[ self::ZIP_WARNING_SKIPPED ][ $id ] = trim( $line ); $zip_warnings_count++; break; case "name not matched:": $zip_other[ self::ZIP_OTHER_GENERIC ][ $id ] = trim( $line ); $zip_other_count++; break; default: $zip_warnings[ self::ZIP_WARNING_GENERIC ][ $id ] = trim( $line ); $zip_warnings_count++; } } else { // Didn't match to what would look like a file related warning so count it regardless $zip_warnings[ self::ZIP_WARNING_GENERIC ][ $id ] = trim( $line ); $zip_warnings_count++; } } elseif ( preg_match( '/^\s*(zip error:)/i', $line ) ) { $zip_errors[ $id ] = trim( $line ); $zip_errors_count++; } elseif ( preg_match( '/^\s*(adding:)/i', $line ) ) { // Currently not processing additions entried //$zip_additions[] = trim( $line ); //$zip_additions_count++; } elseif ( preg_match( '/^\s*(sd:)/i', $line ) ) { $zip_debug[ $id ] = trim( $line ); $zip_debug_count++; } else { // Currently not processing other entries //$zip_other[] = trim( $line ); //$zip_other_count++; } } unset( $logfile ); @unlink( $logfile_name ); } catch ( Exception $e ) { // Something fishy - we should have been able to open the log file... $error_string = $e->getMessage(); pb_backupbuddy::status( 'details', sprintf( __('Log file could not be opened - error reported: %1$s','it-l10n-backupbuddy' ), $error_string ) ); } // Set convenience flags $have_zip_warnings = ( 0 < $zip_warnings_count ); $have_zip_errors = ( 0 < $zip_errors_count ); $have_zip_additions = ( 0 < $zip_additions_count ); $have_zip_debug = ( 0 < $zip_debug_count ); $have_zip_other = ( 0 < $zip_other_count ); // Always report the exit code regardless of whether we might ignore it or not pb_backupbuddy::status( 'details', __('Zip process exit code: ','it-l10n-backupbuddy' ) . $exitcode ); // Always report the number of warnings - even just to confirm that we didn't have any pb_backupbuddy::status( 'details', sprintf( __('Zip process reported: %1$s warning%2$s','it-l10n-backupbuddy' ), $zip_warnings_count, ( ( 1 == $zip_warnings_count ) ? '' : 's' ) ) ); // Always report warnings regardless of whether user has selected to ignore them if ( true === $have_zip_warnings ) { $this->log_zip_reports( $zip_warnings, self::$_warning_desc, "WARNING", self::MAX_WARNING_LINES_TO_SHOW, dirname( dirname( $tempdir ) ) . DIRECTORY_SEPARATOR . 'pb_backupbuddy' . DIRECTORY_SEPARATOR . self::ZIP_WARNINGS_FILE_NAME ); } // Always report other reports regardless if ( true === $have_zip_other ) { // Only report number of informationals if we have any as they are not that important pb_backupbuddy::status( 'details', sprintf( __('Zip process reported: %1$s information%2$s','it-l10n-backupbuddy' ), $zip_other_count, ( ( 1 == $zip_other_count ) ? 'al' : 'als' ) ) ); $this->log_zip_reports( $zip_other, self::$_other_desc, "INFORMATION", self::MAX_OTHER_LINES_TO_SHOW, dirname( dirname( $tempdir ) ) . DIRECTORY_SEPARATOR . 'pb_backupbuddy' . DIRECTORY_SEPARATOR . self::ZIP_OTHERS_FILE_NAME ); } // See if we can figure out what happened - note that $exitcode could be non-zero for actionable warning(s) or error // if ( (no zip file) or (fatal exit code) or (not ignoring warnable exit code) ) if ( ( ! @file_exists( $temp_zip ) ) || ( ( 0 != $exitcode ) && ( 18 != $exitcode ) ) || ( ( 18 == $exitcode ) && !$this->get_ignore_warnings() ) ) { // If we have any zip errors reported show them regardless if ( true === $have_zip_errors ) { pb_backupbuddy::status( 'details', sprintf( __('Zip process reported: %1$s errors','it-l10n-backupbuddy' ), $zip_errors_count ) ); foreach ( $zip_errors as $line ) { pb_backupbuddy::status( 'details', __( 'Zip process reported: ','it-l10n-backupbuddy' ) . $line ); } } // Report whether or not the zip file was created (whether that be in the final or temporary location) if ( ! @file_exists( $temp_zip ) ) { pb_backupbuddy::status( 'details', __( 'Zip Archive file not created - check process exit code.','it-l10n-backupbuddy' ) ); } else { pb_backupbuddy::status( 'details', __( 'Zip Archive file created but with errors/actionable-warnings so will be deleted - check process exit code and warnings.','it-l10n-backupbuddy' ) ); } // The operation has failed one way or another. Note that as the user didn't choose to ignore errors the zip file // is always created in a temporary location and then only moved to final location on success without error or warnings. // Therefore if there is a zip file (produced but with warnings) it will not be visible and will be deleted when the // temporary directory is deleted below. $result = false; } else { // Got file with no error or warnings _or_ with warnings that the user has chosen to ignore if ( false === $this->get_ignore_warnings() ) { // Because not ignoring warnings the zip archive was built in temporary location so we need to move it pb_backupbuddy::status( 'details', __('Moving Zip Archive file to local archive directory.','it-l10n-backupbuddy' ) ); // Make sure no stale file information clearstatcache(); @rename( $temp_zip, $zip ); if ( @file_exists( $zip ) ) { pb_backupbuddy::status( 'details', __('Zip Archive file moved to local archive directory.','it-l10n-backupbuddy' ) ); pb_backupbuddy::status( 'message', __( 'Zip Archive file successfully created with no errors or actionable warnings.','it-l10n-backupbuddy' ) ); $this->log_archive_file_stats( $zip ); $result = true; } else { pb_backupbuddy::status( 'details', __('Zip Archive file could not be moved to local archive directory.','it-l10n-backupbuddy' ) ); $result = false; } } else { // Warnings were being ignored so built in final location so no need to move it if ( @file_exists( $zip ) ) { pb_backupbuddy::status( 'message', __( 'Zip Archive file successfully created with no errors (any actionable warnings ignored by user settings).','it-l10n-backupbuddy' ) ); $this->log_archive_file_stats( $zip ); $result = true; } else { // Odd condition - file should be present but apparently not? pb_backupbuddy::status( 'details', __('Zip Archive file could not be found in local archive directory.','it-l10n-backupbuddy' ) ); $result = false; } } } // Cleanup the temporary directory that will have all detritus and maybe incomplete zip file pb_backupbuddy::status( 'details', __('Removing temporary directory.','it-l10n-backupbuddy' ) ); if ( !( $this->delete_directory_recursive( $tempdir ) ) ) { pb_backupbuddy::status( 'details', __('Temporary directory could not be deleted: ','it-l10n-backupbuddy' ) . $tempdir ); } return $result; } /** * extract() * * Extracts the contents of a zip file to the specified directory using the best unzip methods possible. * If no specific items given to extract then it's a complete unzip * * @param string $zip_file Full path & filename of ZIP file to extract from. * @param string $destination_directory Full directory path to extract into. * @param array $items Mapping of what to extract and to what * @return bool true on success (all extractions successful), false otherwise */ public function extract( $zip_file, $destination_directory = '', $items = array() ) { $result = false; switch ( $this->get_os_type() ) { case self::OS_TYPE_NIX: if ( empty( $items ) ) { $result = $this->extract_generic_full( $zip_file, $destination_directory ); } else { $result = $this->extract_generic_selected( $zip_file, $destination_directory, $items ); } break; case self::OS_TYPE_WIN: if ( empty( $items ) ) { $result = $this->extract_generic_full( $zip_file, $destination_directory ); } else { $result = $this->extract_generic_selected( $zip_file, $destination_directory, $items ); } break; default: $result = false; } return $result; } /** * extract() * * Extracts the contents of a zip file to the specified directory using the best unzip methods possible. * * @param string $zip_file Full path & filename of ZIP file to extract from. * @param string $destination_directory Full directory path to extract into. * @return bool true on success, false otherwise */ protected function extract_generic_full( $zip_file, $destination_directory = '') { // This should never be called but just in case return false silently //pb_backupbuddy::status( 'details', __('The ','it-l10n-backupbuddy' ) . $this->get_method_tag() . __(' method is not currently supported for unarchiving.','it-l10n-backupbuddy' ) ); return false; } /** * extract_generic_selected() * * Extracts the contents of a zip file to the specified directory using the best unzip methods possible. * * @param string $zip_file Full path & filename of ZIP file to extract from. * @param string $destination_directory Full directory path to extract into. * @param array $items Mapping of what to extract and to what * @return bool true on success (all extractions successful), false otherwise */ protected function extract_generic_selected( $zip_file, $destination_directory = '', $items ) { // Should never get here return false; } /** * file_exists() * * Tests whether a file (with path) exists in the given zip file * If leave_open is true then the zip object will be left open for faster checking for subsequent files within this zip * * @param string $zip_file The zip file to check * @param string $locate_file The file to test for * @param bool $leave_open Optional: True if the zip file should be left open * @return bool/array True if the file is found in the zip and false if not, array for other problem * */ public function file_exists( $zip_file, $locate_file, $leave_open = false ) { // This should never be called but just in case return false silently //pb_backupbuddy::status( 'details', __('The ','it-l10n-backupbuddy' ) . $this->get_method_tag() . __(' method is not currently supported for archive file checking.','it-l10n-backupbuddy' ) ); return array( 1, "Method does not support action" ); } /* get_file_list() * * Get an array of all files in a zip file with some file properties. * * @param string $zip_file The file to list the content of * @return bool|array false on failure, otherwise array of file properties (may be empty) */ public function get_file_list( $zip_file ) { // This should never be called but just in case return false silently //pb_backupbuddy::status( 'details', __('The ','it-l10n-backupbuddy' ) . $this->get_method_tag() . __(' method is not currently supported for archive file listing.','it-l10n-backupbuddy' ) ); return false; } /* set_comment() * * Retrieve archive comment. * * @param string $zip_file Filename of archive to set comment on. * @param string $comment Comment to apply to archive. * @return bool|string true on success, error message otherwise. */ public function set_comment( $zip_file, $comment ) { // This should never be called but just in case return false silently //pb_backupbuddy::status( 'details', __('The ','it-l10n-backupbuddy' ) . $this->get_method_tag() . __(' method is not currently supported for archive comment setting.','it-l10n-backupbuddy' ) ); return "Method does not support action"; } /* get_comment() * * Retrieve archive comment. * * @param string $zip_file Filename of archive to retrieve comment from. * @return bool|string false on failure, Zip comment otherwise. */ public function get_comment( $zip_file ) { // This should never be called but just in case return false silently //pb_backupbuddy::status( 'details', __('The ','it-l10n-backupbuddy' ) . $this->get_method_tag() . __(' method is not currently supported for archive comment retrieval.','it-l10n-backupbuddy' ) ); return false; } } // end pluginbuddy_zbzipproc class. } ?>