Subversion-Projekte lars-tiefland.php_share

<?php

/**

 * PEAR_PackageFile, package.xml parsing utility class

 *

 * PHP versions 4 and 5

 *

 * @category   pear

 * @package    PEAR

 * @author     Greg Beaver <cellog@php.net>

 * @copyright  1997-2009 The Authors

 * @license    http://opensource.org/licenses/bsd-license.php New BSD License

 * @version    CVS: $Id: PackageFile.php 313024 2011-07-06 19:51:24Z dufuz $

 * @link       http://pear.php.net/package/PEAR

 * @since      File available since Release 1.4.0a1

 */

/**

 * needed for PEAR_VALIDATE_* constants

 */

require_once 'PEAR/Validate.php';

/**

 * Error code if the package.xml <package> tag does not contain a valid version

 */

define('PEAR_PACKAGEFILE_ERROR_NO_PACKAGEVERSION', 1);

/**

 * Error code if the package.xml <package> tag version is not supported (version 1.0 and 1.1 are the only supported versions,

 * currently

 */

define('PEAR_PACKAGEFILE_ERROR_INVALID_PACKAGEVERSION', 2);

/**

 * Abstraction for the package.xml package description file

 *

 * @category   pear

 * @package    PEAR

 * @author     Greg Beaver <cellog@php.net>

 * @copyright  1997-2009 The Authors

 * @license    http://opensource.org/licenses/bsd-license.php New BSD License

 * @version    Release: 1.9.4

 * @link       http://pear.php.net/package/PEAR

 * @since      Class available since Release 1.4.0a1

 */

class PEAR_PackageFile

{

    /**

     * @var PEAR_Config

     */

    var $_config;

    var $_debug;

    var $_logger = false;

    /**

     * @var boolean

     */

    var $_rawReturn = false;

    /**

     * helper for extracting Archive_Tar errors

     * @var array

     * @access private

     */

    var $_extractErrors = array();

    /**

     *

     * @param   PEAR_Config $config

     * @param   ?   $debug

     * @param   string @tmpdir Optional temporary directory for uncompressing

     *          files

     */

    function PEAR_PackageFile(&$config, $debug = false)

    {

        $this->_config = $config;

        $this->_debug = $debug;

    }

    /**

     * Turn off validation - return a parsed package.xml without checking it

     *

     * This is used by the package-validate command

     */

    function rawReturn()

    {

        $this->_rawReturn = true;

    }

    function setLogger(&$l)

    {

        $this->_logger = &$l;

    }

    /**

     * Create a PEAR_PackageFile_Parser_v* of a given version.

     * @param   int $version

     * @return  PEAR_PackageFile_Parser_v1|PEAR_PackageFile_Parser_v1

     */

    function &parserFactory($version)

    {

        if (!in_array($version{0}, array('1', '2'))) {

            $a = false;

            return $a;

        }

        include_once 'PEAR/PackageFile/Parser/v' . $version{0} . '.php';

        $version = $version{0};

        $class = "PEAR_PackageFile_Parser_v$version";

        $a = new $class;

        return $a;

    }

    /**

     * For simpler unit-testing

     * @return string

     */

    function getClassPrefix()

    {

        return 'PEAR_PackageFile_v';

    }

    /**

     * Create a PEAR_PackageFile_v* of a given version.

     * @param   int $version

     * @return  PEAR_PackageFile_v1|PEAR_PackageFile_v1

     */

    function &factory($version)

    {

        if (!in_array($version{0}, array('1', '2'))) {

            $a = false;

            return $a;

        }

        include_once 'PEAR/PackageFile/v' . $version{0} . '.php';

        $version = $version{0};

        $class = $this->getClassPrefix() . $version;

        $a = new $class;

        return $a;

    }

    /**

     * Create a PEAR_PackageFile_v* from its toArray() method

     *

     * WARNING: no validation is performed, the array is assumed to be valid,

     * always parse from xml if you want validation.

     * @param   array $arr

     * @return PEAR_PackageFileManager_v1|PEAR_PackageFileManager_v2

     * @uses    factory() to construct the returned object.

     */

    function &fromArray($arr)

    {

        if (isset($arr['xsdversion'])) {

            $obj = &$this->factory($arr['xsdversion']);

            if ($this->_logger) {

                $obj->setLogger($this->_logger);

            }

            $obj->setConfig($this->_config);

            $obj->fromArray($arr);

            return $obj;

        }

        if (isset($arr['package']['attribs']['version'])) {

            $obj = &$this->factory($arr['package']['attribs']['version']);

        } else {

            $obj = &$this->factory('1.0');

        }

        if ($this->_logger) {

            $obj->setLogger($this->_logger);

        }

        $obj->setConfig($this->_config);

        $obj->fromArray($arr);

        return $obj;

    }

    /**

     * Create a PEAR_PackageFile_v* from an XML string.

     * @access  public

     * @param   string $data contents of package.xml file

     * @param   int $state package state (one of PEAR_VALIDATE_* constants)

     * @param   string $file full path to the package.xml file (and the files

     *          it references)

     * @param   string $archive optional name of the archive that the XML was

     *          extracted from, if any

     * @return  PEAR_PackageFile_v1|PEAR_PackageFile_v2

     * @uses    parserFactory() to construct a parser to load the package.

     */

    function &fromXmlString($data, $state, $file, $archive = false)

    {

        if (preg_match('/<package[^>]+version=[\'"]([0-9]+\.[0-9]+)[\'"]/', $data, $packageversion)) {

            if (!in_array($packageversion[1], array('1.0', '2.0', '2.1'))) {

                return PEAR::raiseError('package.xml version "' . $packageversion[1] .

                    '" is not supported, only 1.0, 2.0, and 2.1 are supported.');

            }

            $object = &$this->parserFactory($packageversion[1]);

            if ($this->_logger) {

                $object->setLogger($this->_logger);

            }

            $object->setConfig($this->_config);

            $pf = $object->parse($data, $file, $archive);

            if (PEAR::isError($pf)) {

                return $pf;

            }

            if ($this->_rawReturn) {

                return $pf;

            }

            if (!$pf->validate($state)) {;

                if ($this->_config->get('verbose') > 0

                    && $this->_logger && $pf->getValidationWarnings(false)

                ) {

                    foreach ($pf->getValidationWarnings(false) as $warning) {

                        $this->_logger->log(0, 'ERROR: ' . $warning['message']);

                    }

                }

                $a = PEAR::raiseError('Parsing of package.xml from file "' . $file . '" failed',

                    2, null, null, $pf->getValidationWarnings());

                return $a;

            }

            if ($this->_logger && $pf->getValidationWarnings(false)) {

                foreach ($pf->getValidationWarnings() as $warning) {

                    $this->_logger->log(0, 'WARNING: ' . $warning['message']);

                }

            }

            if (method_exists($pf, 'flattenFilelist')) {

                $pf->flattenFilelist(); // for v2

            }

            return $pf;

        } elseif (preg_match('/<package[^>]+version=[\'"]([^"\']+)[\'"]/', $data, $packageversion)) {

            $a = PEAR::raiseError('package.xml file "' . $file .

                '" has unsupported package.xml <package> version "' . $packageversion[1] . '"');

            return $a;

        } else {

            if (!class_exists('PEAR_ErrorStack')) {

                require_once 'PEAR/ErrorStack.php';

            }

            PEAR_ErrorStack::staticPush('PEAR_PackageFile',

                PEAR_PACKAGEFILE_ERROR_NO_PACKAGEVERSION,

                'warning', array('xml' => $data), 'package.xml "' . $file .

                    '" has no package.xml <package> version');

            $object = &$this->parserFactory('1.0');

            $object->setConfig($this->_config);

            $pf = $object->parse($data, $file, $archive);

            if (PEAR::isError($pf)) {

                return $pf;

            }

            if ($this->_rawReturn) {

                return $pf;

            }

            if (!$pf->validate($state)) {

                $a = PEAR::raiseError('Parsing of package.xml from file "' . $file . '" failed',

                    2, null, null, $pf->getValidationWarnings());

                return $a;

            }

            if ($this->_logger && $pf->getValidationWarnings(false)) {

                foreach ($pf->getValidationWarnings() as $warning) {

                    $this->_logger->log(0, 'WARNING: ' . $warning['message']);

                }

            }

            if (method_exists($pf, 'flattenFilelist')) {

                $pf->flattenFilelist(); // for v2

            }

            return $pf;

        }

    }

    /**

     * Register a temporary file or directory.  When the destructor is

     * executed, all registered temporary files and directories are

     * removed.

     *

     * @param string  $file  name of file or directory

     * @return  void

     */

    function addTempFile($file)

    {

        $GLOBALS['_PEAR_Common_tempfiles'][] = $file;

    }

    /**

     * Create a PEAR_PackageFile_v* from a compresed Tar or Tgz file.

     * @access  public

     * @param string contents of package.xml file

     * @param int package state (one of PEAR_VALIDATE_* constants)

     * @return  PEAR_PackageFile_v1|PEAR_PackageFile_v2

     * @using   Archive_Tar to extract the files

     * @using   fromPackageFile() to load the package after the package.xml

     *          file is extracted.

     */

    function &fromTgzFile($file, $state)

    {

        if (!class_exists('Archive_Tar')) {

            require_once 'Archive/Tar.php';

        }

        $tar = new Archive_Tar($file);

        if ($this->_debug <= 1) {

            $tar->pushErrorHandling(PEAR_ERROR_RETURN);

        }

        $content = $tar->listContent();

        if ($this->_debug <= 1) {

            $tar->popErrorHandling();

        }

        if (!is_array($content)) {

            if (is_string($file) && strlen($file < 255) &&

                  (!file_exists($file) || !@is_file($file))) {

                $ret = PEAR::raiseError("could not open file \"$file\"");

                return $ret;

            }

            $file = realpath($file);

            $ret = PEAR::raiseError("Could not get contents of package \"$file\"".

                                     '. Invalid tgz file.');

            return $ret;

        }

        if (!count($content) && !@is_file($file)) {

            $ret = PEAR::raiseError("could not open file \"$file\"");

            return $ret;

        }

        $xml      = null;

        $origfile = $file;

        foreach ($content as $file) {

            $name = $file['filename'];

            if ($name == 'package2.xml') { // allow a .tgz to distribute both versions

                $xml = $name;

                break;

            }

            if ($name == 'package.xml') {

                $xml = $name;

                break;

            } elseif (preg_match('/package.xml$/', $name, $match)) {

                $xml = $name;

                break;

            }

        }

        $tmpdir = System::mktemp('-t "' . $this->_config->get('temp_dir') . '" -d pear');

        if ($tmpdir === false) {

            $ret = PEAR::raiseError("there was a problem with getting the configured temp directory");

            return $ret;

        }

        PEAR_PackageFile::addTempFile($tmpdir);

        $this->_extractErrors();

        PEAR::staticPushErrorHandling(PEAR_ERROR_CALLBACK, array($this, '_extractErrors'));

        if (!$xml || !$tar->extractList(array($xml), $tmpdir)) {

            $extra = implode("\n", $this->_extractErrors());

            if ($extra) {

                $extra = ' ' . $extra;

            }

            PEAR::staticPopErrorHandling();

            $ret = PEAR::raiseError('could not extract the package.xml file from "' .

                $origfile . '"' . $extra);

            return $ret;

        }

        PEAR::staticPopErrorHandling();

        $ret = &PEAR_PackageFile::fromPackageFile("$tmpdir/$xml", $state, $origfile);

        return $ret;

    }

    /**

     * helper callback for extracting Archive_Tar errors

     *

     * @param PEAR_Error|null $err

     * @return array

     * @access private

     */

    function _extractErrors($err = null)

    {

        static $errors = array();

        if ($err === null) {

            $e = $errors;

            $errors = array();

            return $e;

        }

        $errors[] = $err->getMessage();

    }

    /**

     * Create a PEAR_PackageFile_v* from a package.xml file.

     *

     * @access public

     * @param   string  $descfile  name of package xml file

     * @param   int     $state package state (one of PEAR_VALIDATE_* constants)

     * @param   string|false $archive name of the archive this package.xml came

     *          from, if any

     * @return  PEAR_PackageFile_v1|PEAR_PackageFile_v2

     * @uses    PEAR_PackageFile::fromXmlString to create the oject after the

     *          XML is loaded from the package.xml file.

     */

    function &fromPackageFile($descfile, $state, $archive = false)

    {

        $fp = false;

        if (is_string($descfile) && strlen($descfile) < 255 &&

             (

              !file_exists($descfile) || !is_file($descfile) || !is_readable($descfile)

              || (!$fp = @fopen($descfile, 'r'))

             )

        ) {

            $a = PEAR::raiseError("Unable to open $descfile");

            return $a;

        }

        // read the whole thing so we only get one cdata callback

        // for each block of cdata

        fclose($fp);

        $data = file_get_contents($descfile);

        $ret = &PEAR_PackageFile::fromXmlString($data, $state, $descfile, $archive);

        return $ret;

    }

    /**

     * Create a PEAR_PackageFile_v* from a .tgz archive or package.xml file.

     *

     * This method is able to extract information about a package from a .tgz

     * archive or from a XML package definition file.

     *

     * @access public

     * @param   string  $info file name

     * @param   int     $state package state (one of PEAR_VALIDATE_* constants)

     * @return  PEAR_PackageFile_v1|PEAR_PackageFile_v2

     * @uses    fromPackageFile() if the file appears to be XML

     * @uses    fromTgzFile() to load all non-XML files

     */

    function &fromAnyFile($info, $state)

    {

        if (is_dir($info)) {

            $dir_name = realpath($info);

            if (file_exists($dir_name . '/package.xml')) {

                $info = PEAR_PackageFile::fromPackageFile($dir_name .  '/package.xml', $state);

            } elseif (file_exists($dir_name .  '/package2.xml')) {

                $info = PEAR_PackageFile::fromPackageFile($dir_name .  '/package2.xml', $state);

            } else {

                $info = PEAR::raiseError("No package definition found in '$info' directory");

            }

            return $info;

        }

        $fp = false;

        if (is_string($info) && strlen($info) < 255 &&

             (file_exists($info) || ($fp = @fopen($info, 'r')))

        ) {

            if ($fp) {

                fclose($fp);

            }

            $tmp = substr($info, -4);

            if ($tmp == '.xml') {

                $info = &PEAR_PackageFile::fromPackageFile($info, $state);

            } elseif ($tmp == '.tar' || $tmp == '.tgz') {

                $info = &PEAR_PackageFile::fromTgzFile($info, $state);

            } else {

                $fp   = fopen($info, 'r');

                $test = fread($fp, 5);

                fclose($fp);

                if ($test == '<?xml') {

                    $info = &PEAR_PackageFile::fromPackageFile($info, $state);

                } else {

                    $info = &PEAR_PackageFile::fromTgzFile($info, $state);

                }

            }

            return $info;

        }

        $info = PEAR::raiseError("Cannot open '$info' for parsing");

        return $info;

    }

}