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<?php
/**
 * PEAR_PackageFile_v1, package.xml version 1.0
 *
 * 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
 * @link       http://pear.php.net/package/PEAR
 * @since      File available since Release 1.4.0a1
 */
/**
 * For error handling
 */
require_once 'PEAR/ErrorStack.php';

/**
 * Error code if parsing is attempted with no xml extension
 */
define('PEAR_PACKAGEFILE_ERROR_NO_XML_EXT', 3);

/**
 * Error code if creating the xml parser resource fails
 */
define('PEAR_PACKAGEFILE_ERROR_CANT_MAKE_PARSER', 4);

/**
 * Error code used for all sax xml parsing errors
 */
define('PEAR_PACKAGEFILE_ERROR_PARSER_ERROR', 5);

/**
 * Error code used when there is no name
 */
define('PEAR_PACKAGEFILE_ERROR_NO_NAME', 6);

/**
 * Error code when a package name is not valid
 */
define('PEAR_PACKAGEFILE_ERROR_INVALID_NAME', 7);

/**
 * Error code used when no summary is parsed
 */
define('PEAR_PACKAGEFILE_ERROR_NO_SUMMARY', 8);

/**
 * Error code for summaries that are more than 1 line
 */
define('PEAR_PACKAGEFILE_ERROR_MULTILINE_SUMMARY', 9);

/**
 * Error code used when no description is present
 */
define('PEAR_PACKAGEFILE_ERROR_NO_DESCRIPTION', 10);

/**
 * Error code used when no license is present
 */
define('PEAR_PACKAGEFILE_ERROR_NO_LICENSE', 11);

/**
 * Error code used when a <version> version number is not present
 */
define('PEAR_PACKAGEFILE_ERROR_NO_VERSION', 12);

/**
 * Error code used when a <version> version number is invalid
 */
define('PEAR_PACKAGEFILE_ERROR_INVALID_VERSION', 13);

/**
 * Error code when release state is missing
 */
define('PEAR_PACKAGEFILE_ERROR_NO_STATE', 14);

/**
 * Error code when release state is invalid
 */
define('PEAR_PACKAGEFILE_ERROR_INVALID_STATE', 15);

/**
 * Error code when release state is missing
 */
define('PEAR_PACKAGEFILE_ERROR_NO_DATE', 16);

/**
 * Error code when release state is invalid
 */
define('PEAR_PACKAGEFILE_ERROR_INVALID_DATE', 17);

/**
 * Error code when no release notes are found
 */
define('PEAR_PACKAGEFILE_ERROR_NO_NOTES', 18);

/**
 * Error code when no maintainers are found
 */
define('PEAR_PACKAGEFILE_ERROR_NO_MAINTAINERS', 19);

/**
 * Error code when a maintainer has no handle
 */
define('PEAR_PACKAGEFILE_ERROR_NO_MAINTHANDLE', 20);

/**
 * Error code when a maintainer has no handle
 */
define('PEAR_PACKAGEFILE_ERROR_NO_MAINTROLE', 21);

/**
 * Error code when a maintainer has no name
 */
define('PEAR_PACKAGEFILE_ERROR_NO_MAINTNAME', 22);

/**
 * Error code when a maintainer has no email
 */
define('PEAR_PACKAGEFILE_ERROR_NO_MAINTEMAIL', 23);

/**
 * Error code when a maintainer has no handle
 */
define('PEAR_PACKAGEFILE_ERROR_INVALID_MAINTROLE', 24);

/**
 * Error code when a dependency is not a PHP dependency, but has no name
 */
define('PEAR_PACKAGEFILE_ERROR_NO_DEPNAME', 25);

/**
 * Error code when a dependency has no type (pkg, php, etc.)
 */
define('PEAR_PACKAGEFILE_ERROR_NO_DEPTYPE', 26);

/**
 * Error code when a dependency has no relation (lt, ge, has, etc.)
 */
define('PEAR_PACKAGEFILE_ERROR_NO_DEPREL', 27);

/**
 * Error code when a dependency is not a 'has' relation, but has no version
 */
define('PEAR_PACKAGEFILE_ERROR_NO_DEPVERSION', 28);

/**
 * Error code when a dependency has an invalid relation
 */
define('PEAR_PACKAGEFILE_ERROR_INVALID_DEPREL', 29);

/**
 * Error code when a dependency has an invalid type
 */
define('PEAR_PACKAGEFILE_ERROR_INVALID_DEPTYPE', 30);

/**
 * Error code when a dependency has an invalid optional option
 */
define('PEAR_PACKAGEFILE_ERROR_INVALID_DEPOPTIONAL', 31);

/**
 * Error code when a dependency is a pkg dependency, and has an invalid package name
 */
define('PEAR_PACKAGEFILE_ERROR_INVALID_DEPNAME', 32);

/**
 * Error code when a dependency has a channel="foo" attribute, and foo is not a registered channel
 */
define('PEAR_PACKAGEFILE_ERROR_UNKNOWN_DEPCHANNEL', 33);

/**
 * Error code when rel="has" and version attribute is present.
 */
define('PEAR_PACKAGEFILE_ERROR_DEPVERSION_IGNORED', 34);

/**
 * Error code when type="php" and dependency name is present
 */
define('PEAR_PACKAGEFILE_ERROR_DEPNAME_IGNORED', 35);

/**
 * Error code when a configure option has no name
 */
define('PEAR_PACKAGEFILE_ERROR_NO_CONFNAME', 36);

/**
 * Error code when a configure option has no name
 */
define('PEAR_PACKAGEFILE_ERROR_NO_CONFPROMPT', 37);

/**
 * Error code when a file in the filelist has an invalid role
 */
define('PEAR_PACKAGEFILE_ERROR_INVALID_FILEROLE', 38);

/**
 * Error code when a file in the filelist has no role
 */
define('PEAR_PACKAGEFILE_ERROR_NO_FILEROLE', 39);

/**
 * Error code when analyzing a php source file that has parse errors
 */
define('PEAR_PACKAGEFILE_ERROR_INVALID_PHPFILE', 40);

/**
 * Error code when analyzing a php source file reveals a source element
 * without a package name prefix
 */
define('PEAR_PACKAGEFILE_ERROR_NO_PNAME_PREFIX', 41);

/**
 * Error code when an unknown channel is specified
 */
define('PEAR_PACKAGEFILE_ERROR_UNKNOWN_CHANNEL', 42);

/**
 * Error code when no files are found in the filelist
 */
define('PEAR_PACKAGEFILE_ERROR_NO_FILES', 43);

/**
 * Error code when a file is not valid php according to _analyzeSourceCode()
 */
define('PEAR_PACKAGEFILE_ERROR_INVALID_FILE', 44);

/**
 * Error code when the channel validator returns an error or warning
 */
define('PEAR_PACKAGEFILE_ERROR_CHANNELVAL', 45);

/**
 * Error code when a php5 package is packaged in php4 (analysis doesn't work)
 */
define('PEAR_PACKAGEFILE_ERROR_PHP5', 46);

/**
 * Error code when a file is listed in package.xml but does not exist
 */
define('PEAR_PACKAGEFILE_ERROR_FILE_NOTFOUND', 47);

/**
 * Error code when a <dep type="php" rel="not"... is encountered (use rel="ne")
 */
define('PEAR_PACKAGEFILE_PHP_NO_NOT', 48);

/**
 * Error code when a package.xml contains non-ISO-8859-1 characters
 */
define('PEAR_PACKAGEFILE_ERROR_NON_ISO_CHARS', 49);

/**
 * Error code when a dependency is not a 'has' relation, but has no version
 */
define('PEAR_PACKAGEFILE_ERROR_NO_DEPPHPVERSION', 50);

/**
 * Error code when a package has no lead developer
 */
define('PEAR_PACKAGEFILE_ERROR_NO_LEAD', 51);

/**
 * Error code when a filename begins with "."
 */
define('PEAR_PACKAGEFILE_ERROR_INVALID_FILENAME', 52);
/**
 * package.xml encapsulator
 * @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: 1.10.16
 * @link       http://pear.php.net/package/PEAR
 * @since      Class available since Release 1.4.0a1
 */
class PEAR_PackageFile_v1
{
    /**
     * @access private
     * @var PEAR_ErrorStack
     * @access private
     */
    var $_stack;

/**
     * A registry object, used to access the package name validation regex for non-standard channels
     * @var PEAR_Registry
     * @access private
     */
    var $_registry;

/**
     * An object that contains a log method that matches PEAR_Common::log's signature
     * @var object
     * @access private
     */
    var $_logger;

/**
     * Parsed package information
     * @var array
     * @access private
     */
    var $_packageInfo;

/**
     * path to package.xml
     * @var string
     * @access private
     */
    var $_packageFile;

/**
     * path to package .tgz or false if this is a local/extracted package.xml
     * @var string
     * @access private
     */
    var $_archiveFile;

/**
     * @var int
     * @access private
     */
    var $_isValid = 0;

/**
     * Determines whether this packagefile was initialized only with partial package info
     *
     * If this package file was constructed via parsing REST, it will only contain
     *
     * - package name
     * - channel name
     * - dependencies 
     * @var boolean
     * @access private
     */
    var $_incomplete = true;

/**
     * @param bool determines whether to return a PEAR_Error object, or use the PEAR_ErrorStack
     * @param string Name of Error Stack class to use.
     */
    function __construct()
    {
        $this->_stack = new PEAR_ErrorStack('PEAR_PackageFile_v1');
        $this->_stack->setErrorMessageTemplate($this->_getErrorMessage());
        $this->_isValid = 0;
    }

function installBinary($installer)
    {
        return false;
    }

function isExtension($name)
    {
        return false;
    }

function setConfig(&$config)
    {
        $this->_config = &$config;
        $this->_registry = &$config->getRegistry();
    }

function setRequestedGroup()
    {
        // placeholder
    }

/**
     * For saving in the registry.
     *
     * Set the last version that was installed
     * @param string
     */
    function setLastInstalledVersion($version)
    {
        $this->_packageInfo['_lastversion'] = $version;
    }

/**
     * @return string|false
     */
    function getLastInstalledVersion()
    {
        if (isset($this->_packageInfo['_lastversion'])) {
            return $this->_packageInfo['_lastversion'];
        }
        return false;
    }

function getInstalledBinary()
    {
        return false;
    }

function listPostinstallScripts()
    {
        return false;
    }

function initPostinstallScripts()
    {
        return false;
    }

function setLogger(&$logger)
    {
        if ($logger && (!is_object($logger) || !method_exists($logger, 'log'))) {
            return PEAR::raiseError('Logger must be compatible with PEAR_Common::log');
        }
        $this->_logger = &$logger;
    }

function setPackagefile($file, $archive = false)
    {
        $this->_packageFile = $file;
        $this->_archiveFile = $archive ? $archive : $file;
    }

function getPackageFile()
    {
        return isset($this->_packageFile) ? $this->_packageFile : false;
    }

function getPackageType()
    {
        return 'php';
    }

function getArchiveFile()
    {
        return $this->_archiveFile;
    }

function packageInfo($field)
    {
        if (!is_string($field) || empty($field) ||
            !isset($this->_packageInfo[$field])) {
            return false;
        }
        return $this->_packageInfo[$field];
    }

function setDirtree($path)
    {
        if (!isset($this->_packageInfo['dirtree'])) {
            $this->_packageInfo['dirtree'] = array();
        }
        $this->_packageInfo['dirtree'][$path] = true;
    }

function getDirtree()
    {
        if (isset($this->_packageInfo['dirtree']) && count($this->_packageInfo['dirtree'])) {
            return $this->_packageInfo['dirtree'];
        }
        return false;
    }

function resetDirtree()
    {
        unset($this->_packageInfo['dirtree']);
    }

function fromArray($pinfo)
    {
        $this->_incomplete = false;
        $this->_packageInfo = $pinfo;
    }

function isIncomplete()
    {
        return $this->_incomplete;
    }

function getChannel()
    {
        return 'pear.php.net';
    }

function getUri()
    {
        return false;
    }

function getTime()
    {
        return false;
    }

function getExtends()
    {
        if (isset($this->_packageInfo['extends'])) {
            return $this->_packageInfo['extends'];
        }
        return false;
    }

/**
     * @return array
     */
    function toArray()
    {
        if (!$this->validate(PEAR_VALIDATE_NORMAL)) {
            return false;
        }
        return $this->getArray();
    }

function getArray()
    {
        return $this->_packageInfo;
    }

function getName()
    {
        return $this->getPackage();
    }

function getPackage()
    {
        if (isset($this->_packageInfo['package'])) {
            return $this->_packageInfo['package'];
        }
        return false;
    }

/**
     * WARNING - don't use this unless you know what you are doing
     */
    function setRawPackage($package)
    {
        $this->_packageInfo['package'] = $package;
    }

function setPackage($package)
    {
        $this->_packageInfo['package'] = $package;
        $this->_isValid = false;
    }

function getVersion()
    {
        if (isset($this->_packageInfo['version'])) {
            return $this->_packageInfo['version'];
        }
        return false;
    }

function setVersion($version)
    {
        $this->_packageInfo['version'] = $version;
        $this->_isValid = false;
    }

function clearMaintainers()
    {
        unset($this->_packageInfo['maintainers']);
    }

function getMaintainers()
    {
        if (isset($this->_packageInfo['maintainers'])) {
            return $this->_packageInfo['maintainers'];
        }
        return false;
    }

/**
     * Adds a new maintainer - no checking of duplicates is performed, use
     * updatemaintainer for that purpose.
     */
    function addMaintainer($role, $handle, $name, $email)
    {
        $this->_packageInfo['maintainers'][] =
            array('handle' => $handle, 'role' => $role, 'email' => $email, 'name' => $name);
        $this->_isValid = false;
    }

function getState()
    {
        if (isset($this->_packageInfo['release_state'])) {
            return $this->_packageInfo['release_state'];
        }
        return false;
    }

function setRawState($state)
    {
        $this->_packageInfo['release_state'] = $state;
    }

function setState($state)
    {
        $this->_packageInfo['release_state'] = $state;
        $this->_isValid = false;
    }

function getDate()
    {
        if (isset($this->_packageInfo['release_date'])) {
            return $this->_packageInfo['release_date'];
        }
        return false;
    }

function setDate($date)
    {
        $this->_packageInfo['release_date'] = $date;
        $this->_isValid = false;
    }

function getLicense()
    {
        if (isset($this->_packageInfo['release_license'])) {
            return $this->_packageInfo['release_license'];
        }
        return false;
    }

function setLicense($date)
    {
        $this->_packageInfo['release_license'] = $date;
        $this->_isValid = false;
    }

function getSummary()
    {
        if (isset($this->_packageInfo['summary'])) {
            return $this->_packageInfo['summary'];
        }
        return false;
    }

function setSummary($summary)
    {
        $this->_packageInfo['summary'] = $summary;
        $this->_isValid = false;
    }

function getDescription()
    {
        if (isset($this->_packageInfo['description'])) {
            return $this->_packageInfo['description'];
        }
        return false;
    }

function setDescription($desc)
    {
        $this->_packageInfo['description'] = $desc;
        $this->_isValid = false;
    }

function getNotes()
    {
        if (isset($this->_packageInfo['release_notes'])) {
            return $this->_packageInfo['release_notes'];
        }
        return false;
    }

function setNotes($notes)
    {
        $this->_packageInfo['release_notes'] = $notes;
        $this->_isValid = false;
    }

function getDeps()
    {
        if (isset($this->_packageInfo['release_deps'])) {
            return $this->_packageInfo['release_deps'];
        }
        return false;
    }

/**
     * Reset dependencies prior to adding new ones
     */
    function clearDeps()
    {
        unset($this->_packageInfo['release_deps']);
    }

function addPhpDep($version, $rel)
    {
        $this->_isValid = false;
        $this->_packageInfo['release_deps'][] =
            array('type' => 'php',
                  'rel' => $rel,
                  'version' => $version);
    }

function addPackageDep($name, $version, $rel, $optional = 'no')
    {
        $this->_isValid = false;
        $dep =
            array('type' => 'pkg',
                  'name' => $name,
                  'rel' => $rel,
                  'optional' => $optional);
        if ($rel != 'has' && $rel != 'not') {
            $dep['version'] = $version;
        }
        $this->_packageInfo['release_deps'][] = $dep;
    }

function addExtensionDep($name, $version, $rel, $optional = 'no')
    {
        $this->_isValid = false;
        $this->_packageInfo['release_deps'][] =
            array('type' => 'ext',
                  'name' => $name,
                  'rel' => $rel,
                  'version' => $version,
                  'optional' => $optional);
    }

/**
     * WARNING - do not use this function directly unless you know what you're doing
     */
    function setDeps($deps)
    {
        $this->_packageInfo['release_deps'] = $deps;
    }

function hasDeps()
    {
        return isset($this->_packageInfo['release_deps']) &&
            count($this->_packageInfo['release_deps']);
    }

function getDependencyGroup($group)
    {
        return false;
    }

function isCompatible($pf)
    {
        return false;
    }

function isSubpackageOf($p)
    {
        return $p->isSubpackage($this);
    }

function isSubpackage($p)
    {
        return false;
    }

function getConfigureOptions()
    {
        if (isset($this->_packageInfo['configure_options'])) {
            return $this->_packageInfo['configure_options'];
        }
        return false;
    }

function hasConfigureOptions()
    {
        return isset($this->_packageInfo['configure_options']) &&
            count($this->_packageInfo['configure_options']);
    }

function clearConfigureOptions()
    {
        unset($this->_packageInfo['configure_options']);
    }

function getProvides()
    {
        if (isset($this->_packageInfo['provides'])) {
            return $this->_packageInfo['provides'];
        }
        return false;
    }

function getProvidesExtension()
    {
        return false;
    }

function getInstallationFilelist()
    {
        return $this->getFilelist();
    }

function getFilelist()
    {
        if (isset($this->_packageInfo['filelist'])) {
            return $this->_packageInfo['filelist'];
        }
        return false;
    }

function setFileAttribute($file, $attr, $value)
    {
        $this->_packageInfo['filelist'][$file][$attr] = $value;
    }

function resetFilelist()
    {
        $this->_packageInfo['filelist'] = array();
    }

function setInstalledAs($file, $path)
    {
        if ($path) {
            return $this->_packageInfo['filelist'][$file]['installed_as'] = $path;
        }
        unset($this->_packageInfo['filelist'][$file]['installed_as']);
    }

function installedFile($file, $atts)
    {
        if (isset($this->_packageInfo['filelist'][$file])) {
            $this->_packageInfo['filelist'][$file] =
                array_merge($this->_packageInfo['filelist'][$file], $atts);
        } else {
            $this->_packageInfo['filelist'][$file] = $atts;
        }
    }

function getChangelog()
    {
        if (isset($this->_packageInfo['changelog'])) {
            return $this->_packageInfo['changelog'];
        }
        return false;
    }

function getPackagexmlVersion()
    {
        return '1.0';
    }

/**
     * Wrapper to {@link PEAR_ErrorStack::getErrors()}
     * @param boolean determines whether to purge the error stack after retrieving
     * @return array
     */
    function getValidationWarnings($purge = true)
    {
        return $this->_stack->getErrors($purge);
    }

// }}}
    /**
     * Validation error.  Also marks the object contents as invalid
     * @param error code
     * @param array error information
     * @access private
     */
    function _validateError($code, $params = array())
    {
        $this->_stack->push($code, 'error', $params, false, false, debug_backtrace());
        $this->_isValid = false;
    }

/**
     * Validation warning.  Does not mark the object contents invalid.
     * @param error code
     * @param array error information
     * @access private
     */
    function _validateWarning($code, $params = array())
    {
        $this->_stack->push($code, 'warning', $params, false, false, debug_backtrace());
    }

/**
     * @param integer error code
     * @access protected
     */
    function _getErrorMessage()
    {
        return array(
                PEAR_PACKAGEFILE_ERROR_NO_NAME =>
                    'Missing Package Name',
                PEAR_PACKAGEFILE_ERROR_NO_SUMMARY =>
                    'No summary found',
                PEAR_PACKAGEFILE_ERROR_MULTILINE_SUMMARY =>
                    'Summary should be on one line',
                PEAR_PACKAGEFILE_ERROR_NO_DESCRIPTION =>
                    'Missing description',
                PEAR_PACKAGEFILE_ERROR_NO_LICENSE =>
                    'Missing license',
                PEAR_PACKAGEFILE_ERROR_NO_VERSION =>
                    'No release version found',
                PEAR_PACKAGEFILE_ERROR_NO_STATE =>
                    'No release state found',
                PEAR_PACKAGEFILE_ERROR_NO_DATE =>
                    'No release date found',
                PEAR_PACKAGEFILE_ERROR_NO_NOTES =>
                    'No release notes found',
                PEAR_PACKAGEFILE_ERROR_NO_LEAD =>
                    'Package must have at least one lead maintainer',
                PEAR_PACKAGEFILE_ERROR_NO_MAINTAINERS =>
                    'No maintainers found, at least one must be defined',
                PEAR_PACKAGEFILE_ERROR_NO_MAINTHANDLE =>
                    'Maintainer %index% has no handle (user ID at channel server)',
                PEAR_PACKAGEFILE_ERROR_NO_MAINTROLE =>
                    'Maintainer %index% has no role',
                PEAR_PACKAGEFILE_ERROR_NO_MAINTNAME =>
                    'Maintainer %index% has no name',
                PEAR_PACKAGEFILE_ERROR_NO_MAINTEMAIL =>
                    'Maintainer %index% has no email',
                PEAR_PACKAGEFILE_ERROR_NO_DEPNAME =>
                    'Dependency %index% is not a php dependency, and has no name',
                PEAR_PACKAGEFILE_ERROR_NO_DEPREL =>
                    'Dependency %index% has no relation (rel)',
                PEAR_PACKAGEFILE_ERROR_NO_DEPTYPE =>
                    'Dependency %index% has no type',
                PEAR_PACKAGEFILE_ERROR_DEPNAME_IGNORED =>
                    'PHP Dependency %index% has a name attribute of "%name%" which will be' .
                        ' ignored!',
                PEAR_PACKAGEFILE_ERROR_NO_DEPVERSION =>
                    'Dependency %index% is not a rel="has" or rel="not" dependency, ' .
                        'and has no version',
                PEAR_PACKAGEFILE_ERROR_NO_DEPPHPVERSION =>
                    'Dependency %index% is a type="php" dependency, ' .
                        'and has no version',
                PEAR_PACKAGEFILE_ERROR_DEPVERSION_IGNORED =>
                    'Dependency %index% is a rel="%rel%" dependency, versioning is ignored',
                PEAR_PACKAGEFILE_ERROR_INVALID_DEPOPTIONAL =>
                    'Dependency %index% has invalid optional value "%opt%", should be yes or no',
                PEAR_PACKAGEFILE_PHP_NO_NOT =>
                    'Dependency %index%: php dependencies cannot use "not" rel, use "ne"' .
                        ' to exclude specific versions',
                PEAR_PACKAGEFILE_ERROR_NO_CONFNAME =>
                    'Configure Option %index% has no name',
                PEAR_PACKAGEFILE_ERROR_NO_CONFPROMPT =>
                    'Configure Option %index% has no prompt',
                PEAR_PACKAGEFILE_ERROR_NO_FILES =>
                    'No files in <filelist> section of package.xml',
                PEAR_PACKAGEFILE_ERROR_NO_FILEROLE =>
                    'File "%file%" has no role, expecting one of "%roles%"',
                PEAR_PACKAGEFILE_ERROR_INVALID_FILEROLE =>
                    'File "%file%" has invalid role "%role%", expecting one of "%roles%"',
                PEAR_PACKAGEFILE_ERROR_INVALID_FILENAME =>
                    'File "%file%" cannot start with ".", cannot package or install',
                PEAR_PACKAGEFILE_ERROR_INVALID_PHPFILE =>
                    'Parser error: invalid PHP found in file "%file%"',
                PEAR_PACKAGEFILE_ERROR_NO_PNAME_PREFIX =>
                    'in %file%: %type% "%name%" not prefixed with package name "%package%"',
                PEAR_PACKAGEFILE_ERROR_INVALID_FILE =>
                    'Parser error: invalid PHP file "%file%"',
                PEAR_PACKAGEFILE_ERROR_CHANNELVAL =>
                    'Channel validator error: field "%field%" - %reason%',
                PEAR_PACKAGEFILE_ERROR_PHP5 =>
                    'Error, PHP5 token encountered in %file%, analysis should be in PHP5',
                PEAR_PACKAGEFILE_ERROR_FILE_NOTFOUND =>
                    'File "%file%" in package.xml does not exist',
                PEAR_PACKAGEFILE_ERROR_NON_ISO_CHARS =>
                    'Package.xml contains non-ISO-8859-1 characters, and may not validate',
            );
    }

/**
     * Validate XML package definition file.
     *
     * @access public
     * @return boolean
     */
    function validate($state = PEAR_VALIDATE_NORMAL, $nofilechecking = false)
    {
        if (($this->_isValid & $state) == $state) {
            return true;
        }
        $this->_isValid = true;
        $info = $this->_packageInfo;
        if (empty($info['package'])) {
            $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_NAME);
            $this->_packageName = $pn = 'unknown';
        } else {
            $this->_packageName = $pn = $info['package'];
        }

if (empty($info['summary'])) {
            $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_SUMMARY);
        } elseif (strpos(trim($info['summary']), "\n") !== false) {
            $this->_validateWarning(PEAR_PACKAGEFILE_ERROR_MULTILINE_SUMMARY,
                array('summary' => $info['summary']));
        }
        if (empty($info['description'])) {
            $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_DESCRIPTION);
        }
        if (empty($info['release_license'])) {
            $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_LICENSE);
        }
        if (empty($info['version'])) {
            $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_VERSION);
        }
        if (empty($info['release_state'])) {
            $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_STATE);
        }
        if (empty($info['release_date'])) {
            $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_DATE);
        }
        if (empty($info['release_notes'])) {
            $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_NOTES);
        }
        if (empty($info['maintainers'])) {
            $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_MAINTAINERS);
        } else {
            $haslead = false;
            $i = 1;
            foreach ($info['maintainers'] as $m) {
                if (empty($m['handle'])) {
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_MAINTHANDLE,
                        array('index' => $i));
                }
                if (empty($m['role'])) {
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_MAINTROLE,
                        array('index' => $i, 'roles' => PEAR_Common::getUserRoles()));
                } elseif ($m['role'] == 'lead') {
                    $haslead = true;
                }
                if (empty($m['name'])) {
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_MAINTNAME,
                        array('index' => $i));
                }
                if (empty($m['email'])) {
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_MAINTEMAIL,
                        array('index' => $i));
                }
                $i++;
            }
            if (!$haslead) {
                $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_LEAD);
            }
        }
        if (!empty($info['release_deps'])) {
            $i = 1;
            foreach ($info['release_deps'] as $d) {
                if (!isset($d['type']) || empty($d['type'])) {
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_DEPTYPE,
                        array('index' => $i, 'types' => PEAR_Common::getDependencyTypes()));
                    continue;
                }
                if (!isset($d['rel']) || empty($d['rel'])) {
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_DEPREL,
                        array('index' => $i, 'rels' => PEAR_Common::getDependencyRelations()));
                    continue;
                }
                if (!empty($d['optional'])) {
                    if (!in_array($d['optional'], array('yes', 'no'))) {
                        $this->_validateError(PEAR_PACKAGEFILE_ERROR_INVALID_DEPOPTIONAL,
                            array('index' => $i, 'opt' => $d['optional']));
                    }
                }
                if ($d['rel'] != 'has' && $d['rel'] != 'not' && empty($d['version'])) {
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_DEPVERSION,
                        array('index' => $i));
                } elseif (($d['rel'] == 'has' || $d['rel'] == 'not') && !empty($d['version'])) {
                    $this->_validateWarning(PEAR_PACKAGEFILE_ERROR_DEPVERSION_IGNORED,
                        array('index' => $i, 'rel' => $d['rel']));
                }
                if ($d['type'] == 'php' && !empty($d['name'])) {
                    $this->_validateWarning(PEAR_PACKAGEFILE_ERROR_DEPNAME_IGNORED,
                        array('index' => $i, 'name' => $d['name']));
                } elseif ($d['type'] != 'php' && empty($d['name'])) {
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_DEPNAME,
                        array('index' => $i));
                }
                if ($d['type'] == 'php' && empty($d['version'])) {
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_DEPPHPVERSION,
                        array('index' => $i));
                }
                if (($d['rel'] == 'not') && ($d['type'] == 'php')) {
                    $this->_validateError(PEAR_PACKAGEFILE_PHP_NO_NOT,
                        array('index' => $i));
                }
                $i++;
            }
        }
        if (!empty($info['configure_options'])) {
            $i = 1;
            foreach ($info['configure_options'] as $c) {
                if (empty($c['name'])) {
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_CONFNAME,
                        array('index' => $i));
                }
                if (empty($c['prompt'])) {
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_CONFPROMPT,
                        array('index' => $i));
                }
                $i++;
            }
        }
        if (empty($info['filelist'])) {
            $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_FILES);
            $errors[] = 'no files';
        } else {
            foreach ($info['filelist'] as $file => $fa) {
                if (empty($fa['role'])) {
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_NO_FILEROLE,
                        array('file' => $file, 'roles' => PEAR_Common::getFileRoles()));
                    continue;
                } elseif (!in_array($fa['role'], PEAR_Common::getFileRoles())) {
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_INVALID_FILEROLE,
                        array('file' => $file, 'role' => $fa['role'], 'roles' => PEAR_Common::getFileRoles()));
                }
                if (preg_match('~/\.\.?(/|\\z)|^\.\.?/~', str_replace('\\', '/', $file))) {
                    // file contains .. parent directory or . cur directory references
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_INVALID_FILENAME,
                        array('file' => $file));
                }
                if (isset($fa['install-as']) &&
                      preg_match('~/\.\.?(/|\\z)|^\.\.?/~', 
                                 str_replace('\\', '/', $fa['install-as']))) {
                    // install-as contains .. parent directory or . cur directory references
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_INVALID_FILENAME,
                        array('file' => $file . ' [installed as ' . $fa['install-as'] . ']'));
                }
                if (isset($fa['baseinstalldir']) &&
                      preg_match('~/\.\.?(/|\\z)|^\.\.?/~', 
                                 str_replace('\\', '/', $fa['baseinstalldir']))) {
                    // install-as contains .. parent directory or . cur directory references
                    $this->_validateError(PEAR_PACKAGEFILE_ERROR_INVALID_FILENAME,
                        array('file' => $file . ' [baseinstalldir ' . $fa['baseinstalldir'] . ']'));
                }
            }
        }
        if (isset($this->_registry) && $this->_isValid) {
            $chan = $this->_registry->getChannel('pear.php.net');
            if (PEAR::isError($chan)) {
                $this->_validateError(PEAR_PACKAGEFILE_ERROR_CHANNELVAL, $chan->getMessage());
                return $this->_isValid = 0;
            }
            $validator = $chan->getValidationObject();
            $validator->setPackageFile($this);
            $validator->validate($state);
            $failures = $validator->getFailures();
            foreach ($failures['errors'] as $error) {
                $this->_validateError(PEAR_PACKAGEFILE_ERROR_CHANNELVAL, $error);
            }
            foreach ($failures['warnings'] as $warning) {
                $this->_validateWarning(PEAR_PACKAGEFILE_ERROR_CHANNELVAL, $warning);
            }
        }
        if ($this->_isValid && $state == PEAR_VALIDATE_PACKAGING && !$nofilechecking) {
            if ($this->_analyzePhpFiles()) {
                $this->_isValid = true;
            }
        }
        if ($this->_isValid) {
            return $this->_isValid = $state;
        }
        return $this->_isValid = 0;
    }

/**
     * Get the default xml generator object
     *
     * @return PEAR_PackageFile_Generator_v1
     */
    function &getDefaultGenerator()
    {
        if (!class_exists('PEAR_PackageFile_Generator_v1')) {
            require_once 'PEAR/PackageFile/Generator/v1.php';
        }
        $a = new PEAR_PackageFile_Generator_v1($this);
        return $a;
    }

/**
     * Get the contents of a file listed within the package.xml
     * @param string
     * @return string
     */
    function getFileContents($file)
    {
        if ($this->_archiveFile == $this->_packageFile) { // unpacked
            $dir = dirname($this->_packageFile);
            $file = $dir . DIRECTORY_SEPARATOR . $file;
            $file = str_replace(array('/', '\\'),
                array(DIRECTORY_SEPARATOR, DIRECTORY_SEPARATOR), $file);
            if (file_exists($file) && is_readable($file)) {
                return implode('', file($file));
            }
        } else { // tgz
            if (!class_exists('Archive_Tar')) {
                require_once 'Archive/Tar.php';
            }
            $tar = new Archive_Tar($this->_archiveFile);
            $tar->pushErrorHandling(PEAR_ERROR_RETURN);
            if ($file != 'package.xml' && $file != 'package2.xml') {
                $file = $this->getPackage() . '-' . $this->getVersion() . '/' . $file;
            }
            $file = $tar->extractInString($file);
            $tar->popErrorHandling();
            if (PEAR::isError($file)) {
                return PEAR::raiseError("Cannot locate file '$file' in archive");
            }
            return $file;
        }
    }

// {{{ analyzeSourceCode()
    /**
     * Analyze the source code of the given PHP file
     *
     * @param  string Filename of the PHP file
     * @return mixed
     * @access private
     */
    function _analyzeSourceCode($file)
    {
        if (!function_exists("token_get_all")) {
            return false;
        }
        if (!defined('T_DOC_COMMENT')) {
            define('T_DOC_COMMENT', T_COMMENT);
        }
        if (!defined('T_INTERFACE')) {
            define('T_INTERFACE', -1);
        }
        if (!defined('T_IMPLEMENTS')) {
            define('T_IMPLEMENTS', -1);
        }
        if (!$fp = @fopen($file, "r")) {
            return false;
        }
        fclose($fp);
        $contents = file_get_contents($file);
        $tokens = token_get_all($contents);
/*
        for ($i = 0; $i < sizeof($tokens); $i++) {
            @list($token, $data) = $tokens[$i];
            if (is_string($token)) {
                var_dump($token);
            } else {
                print token_name($token) . ' ';
                var_dump(rtrim($data));
            }
        }
*/
        $look_for = 0;
        $paren_level = 0;
        $bracket_level = 0;
        $brace_level = 0;
        $lastphpdoc = '';
        $current_class = '';
        $current_interface = '';
        $current_class_level = -1;
        $current_function = '';
        $current_function_level = -1;
        $declared_classes = array();
        $declared_interfaces = array();
        $declared_functions = array();
        $declared_methods = array();
        $used_classes = array();
        $used_functions = array();
        $extends = array();
        $implements = array();
        $nodeps = array();
        $inquote = false;
        $interface = false;
        for ($i = 0; $i < sizeof($tokens); $i++) {
            if (is_array($tokens[$i])) {
                list($token, $data) = $tokens[$i];
            } else {
                $token = $tokens[$i];
                $data = '';
            }
            if ($inquote) {
                if ($token != '"' && $token != T_END_HEREDOC) {
                    continue;
                } else {
                    $inquote = false;
                    continue;
                }
            }
            switch ($token) {
                case T_WHITESPACE:
                    break;
                case ';':
                    if ($interface) {
                        $current_function = '';
                        $current_function_level = -1;
                    }
                    break;
                case '"':
                case T_START_HEREDOC:
                    $inquote = true;
                    break;
                case T_CURLY_OPEN:
                case T_DOLLAR_OPEN_CURLY_BRACES:
                case '{': $brace_level++; continue 2;
                case '}':
                    $brace_level--;
                    if ($current_class_level == $brace_level) {
                        $current_class = '';
                        $current_class_level = -1;
                    }
                    if ($current_function_level == $brace_level) {
                        $current_function = '';
                        $current_function_level = -1;
                    }
                    continue 2;
                case '[': $bracket_level++; continue 2;
                case ']': $bracket_level--; continue 2;
                case '(': $paren_level++;   continue 2;
                case ')': $paren_level--;   continue 2;
                case T_INTERFACE:
                    $interface = true;
                case T_CLASS:
                    if (($current_class_level != -1) || ($current_function_level != -1)) {
                        $this->_validateError(PEAR_PACKAGEFILE_ERROR_INVALID_PHPFILE,
                            array('file' => $file));
                        return false;
                    }
                case T_FUNCTION:
                case T_NEW:
                case T_EXTENDS:
                case T_IMPLEMENTS:
                    $look_for = $token;
                    continue 2;
                case T_STRING:
                    if ($look_for == T_CLASS) {
                        $current_class = $data;
                        $current_class_level = $brace_level;
                        $declared_classes[] = $current_class;
                    } elseif ($look_for == T_INTERFACE) {
                        $current_interface = $data;
                        $current_class_level = $brace_level;
                        $declared_interfaces[] = $current_interface;
                    } elseif ($look_for == T_IMPLEMENTS) {
                        $implements[$current_class] = $data;
                    } elseif ($look_for == T_EXTENDS) {
                        $extends[$current_class] = $data;
                    } elseif ($look_for == T_FUNCTION) {
                        if ($current_class) {
                            $current_function = "$current_class::$data";
                            $declared_methods[$current_class][] = $data;
                        } elseif ($current_interface) {
                            $current_function = "$current_interface::$data";
                            $declared_methods[$current_interface][] = $data;
                        } else {
                            $current_function = $data;
                            $declared_functions[] = $current_function;
                        }
                        $current_function_level = $brace_level;
                        $m = array();
                    } elseif ($look_for == T_NEW) {
                        $used_classes[$data] = true;
                    }
                    $look_for = 0;
                    continue 2;
                case T_VARIABLE:
                    $look_for = 0;
                    continue 2;
                case T_DOC_COMMENT:
                case T_COMMENT:
                    if (preg_match('!^/\*\*\s!', $data)) {
                        $lastphpdoc = $data;
                        if (preg_match_all('/@nodep\s+(\S+)/', $lastphpdoc, $m)) {
                            $nodeps = array_merge($nodeps, $m[1]);
                        }
                    }
                    continue 2;
                case T_DOUBLE_COLON:
                    if (!($tokens[$i - 1][0] == T_WHITESPACE || $tokens[$i - 1][0] == T_STRING)) {
                        $this->_validateError(PEAR_PACKAGEFILE_ERROR_INVALID_PHPFILE,
                            array('file' => $file));
                        return false;
                    }
                    $class = $tokens[$i - 1][1];
                    if (strtolower($class) != 'parent') {
                        $used_classes[$class] = true;
                    }
                    continue 2;
            }
        }
        return array(
            "source_file" => $file,
            "declared_classes" => $declared_classes,
            "declared_interfaces" => $declared_interfaces,
            "declared_methods" => $declared_methods,
            "declared_functions" => $declared_functions,
            "used_classes" => array_diff(array_keys($used_classes), $nodeps),
            "inheritance" => $extends,
            "implements" => $implements,
            );
    }

/**
     * Build a "provides" array from data returned by
     * analyzeSourceCode().  The format of the built array is like
     * this:
     *
     *  array(
     *    'class;MyClass' => 'array('type' => 'class', 'name' => 'MyClass'),
     *    ...
     *  )
     *
     *
     * @param array $srcinfo array with information about a source file
     * as returned by the analyzeSourceCode() method.
     *
     * @return void
     *
     * @access private
     *
     */
    function _buildProvidesArray($srcinfo)
    {
        if (!$this->_isValid) {
            return false;
        }
        $file = basename($srcinfo['source_file']);
        $pn = $this->getPackage();
        $pnl = strlen($pn);
        foreach ($srcinfo['declared_classes'] as $class) {
            $key = "class;$class";
            if (isset($this->_packageInfo['provides'][$key])) {
                continue;
            }
            $this->_packageInfo['provides'][$key] =
                array('file'=> $file, 'type' => 'class', 'name' => $class);
            if (isset($srcinfo['inheritance'][$class])) {
                $this->_packageInfo['provides'][$key]['extends'] =
                    $srcinfo['inheritance'][$class];
            }
        }
        foreach ($srcinfo['declared_methods'] as $class => $methods) {
            foreach ($methods as $method) {
                $function = "$class::$method";
                $key = "function;$function";
                if ($method[0] == '_' || !strcasecmp($method, $class) ||
                    isset($this->_packageInfo['provides'][$key])) {
                    continue;
                }
                $this->_packageInfo['provides'][$key] =
                    array('file'=> $file, 'type' => 'function', 'name' => $function);
            }
        }

foreach ($srcinfo['declared_functions'] as $function) {
            $key = "function;$function";
            if ($function[0] == '_' || isset($this->_packageInfo['provides'][$key])) {
                continue;
            }
            if (!strstr($function, '::') && strncasecmp($function, $pn, $pnl)) {
                $warnings[] = "in1 " . $file . ": function \"$function\" not prefixed with package name \"$pn\"";
            }
            $this->_packageInfo['provides'][$key] =
                array('file'=> $file, 'type' => 'function', 'name' => $function);
        }
    }

// }}}
}
?>