| <?php |
| /** |
| * File contains the ezcArchivePaxHeader class. |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| * @package Archive |
| * @version //autogentag// |
| * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0 |
| * @access private |
| */ |
| |
| /** |
| * The ezcArchivePaxHeader class represents the Tar Pax header. |
| * |
| * ezcArchivePaxHeader can read the header from an ezcArchiveBlockFile or ezcArchiveEntry. |
| * |
| * The values from the headers are directly accessible via the class properties, and allows |
| * reading and writing to specific header values. |
| * |
| * The entire header can be appended to an ezcArchiveBlockFile again or written to an ezcArchiveFileStructure. |
| * Information may get lost, though. |
| * |
| * The header is the {@link ezcArchiveUstarHeader} with extra header information described on the following webpage: |
| * {@link http://www.opengroup.org/onlinepubs/009695399/utilities/pax.html} |
| * |
| * Currently, only the extended header is supported. |
| * |
| * @package Archive |
| * @version //autogentag// |
| * @access private |
| */ |
| class ezcArchivePaxHeader extends ezcArchiveUstarHeader |
| { |
| /** |
| * Sets the property $name to $value. |
| * |
| * @throws ezcBasePropertyNotFoundException if the property does not exist. |
| * @param string $name |
| * @param mixed $value |
| * @return void |
| * @ignore |
| */ |
| public function __set( $name, $value ) |
| { |
| return parent::__set( $name, $value ); |
| } |
| |
| /** |
| * Returns the value of the property $name. |
| * |
| * @throws ezcBasePropertyNotFoundException if the property does not exist. |
| * @param string $name |
| * @return mixed |
| * @ignore |
| */ |
| public function __get( $name ) |
| { |
| return parent::__get( $name ); |
| } |
| |
| /** |
| * Returns an array with pax header information. |
| * |
| * This method reads an extended set of data from the ezcArchiveBlockFile |
| * $file and returns the values in an array. |
| * |
| * @param ezcArchiveBlockFile $file |
| * @return array(string=>string) |
| */ |
| protected function getPaxDecodedHeader( ezcArchiveBlockFile $file ) |
| { |
| $result = array(); |
| |
| // next block has the info. |
| $file->next(); |
| |
| $data = $file->current(); |
| |
| $offset = 0; |
| |
| while ( strcmp( $data[$offset], "\0" ) != 0 ) |
| { |
| $space = strpos( $data, " ", $offset ); |
| |
| $length = substr( $data, $offset, $space - $offset ); |
| $equalSign = strpos( $data, "=", $space ); |
| |
| $keyword = substr( $data, $space + 1, $equalSign - $space - 1 ); |
| |
| $value = rtrim( substr( $data, $equalSign + 1, $length - $equalSign - 1 ), "\n" ); |
| |
| $result[ $keyword ] = $value; |
| |
| $offset += $length; |
| } |
| |
| return $result; |
| } |
| |
| /** |
| * Creates and initializes a new header. |
| * |
| * If the ezcArchiveBlockFile $file is null then the header will be empty. |
| * When an ezcArchiveBlockFile is given, the block position should point to the header block. |
| * This header block will be read from the file and initialized in this class. |
| * |
| * @param ezcArchiveBlockFile $file |
| */ |
| public function __construct( ezcArchiveBlockFile $file = null ) |
| { |
| if ( !is_null( $file ) ) |
| { |
| parent::__construct( $file ); |
| |
| if ( $this->type == "x" ) |
| { |
| $paxArray = $this->getPaxDecodedHeader( $file ); |
| $file->next(); |
| } |
| |
| parent::__construct( $file ); |
| |
| // Override some fields. |
| foreach ( $paxArray as $key => $value ) |
| { |
| switch ( $key ) |
| { |
| case "gid": |
| $this->groupId = $value; |
| break; // For group IDs larger than 2097151. |
| |
| case "linkpath": |
| $this->linkName = $value; |
| break; // Long link names? |
| |
| case "path": |
| $this->fileName = $value; |
| $this->filePrefix = ""; |
| break; // Really long file names. |
| |
| case "size": |
| $this->size = $value; |
| break; // For files with a size greater than 8589934591 bytes. |
| |
| case "uid": |
| $this->userId = $value; |
| break; // For user IDs larger than 2097151. |
| } |
| } |
| } |
| } |
| } |
| ?> |