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ðŸ“ ..
ðŸ“„ Autoloader.php(6.36 KB)
ðŸ“„ Builder.php(16.38 KB)
ðŸ“ ChannelFile
ðŸ“„ ChannelFile.php(49.68 KB)
ðŸ“ Command
ðŸ“„ Command.php(12.35 KB)
ðŸ“„ Common.php(25.12 KB)
ðŸ“„ Config.php(66.25 KB)
ðŸ“„ Dependency2.php(49.28 KB)
ðŸ“„ DependencyDB.php(23.62 KB)
ðŸ“ Downloader
ðŸ“„ Downloader.php(64.97 KB)
ðŸ“„ ErrorStack.php(33.07 KB)
ðŸ“„ Exception.php(13.63 KB)
ðŸ“„ FixPHP5PEARWarnings.php(153 B)
ðŸ“ Frontend
ðŸ“„ Frontend.php(6.51 KB)
ðŸ“ Installer
ðŸ“„ Installer.php(68.93 KB)
ðŸ“ PackageFile
ðŸ“„ PackageFile.php(15.49 KB)
ðŸ“„ Packager.php(7.55 KB)
ðŸ“ REST
ðŸ“„ REST.php(17.18 KB)
ðŸ“„ Registry.php(74.03 KB)
ðŸ“„ RunTest.php(35.53 KB)
ðŸ“ Task
ðŸ“„ Validate.php(21.5 KB)
ðŸ“ Validator
ðŸ“„ XMLParser.php(6.95 KB)

Editing: ChannelFile.php

<?php
/**
 * PEAR_ChannelFile, the channel handling 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: $Id$
 * @link       http://pear.php.net/package/PEAR
 * @since      File available since Release 1.4.0a1
 */

/**
 * Needed for error handling
 */
require_once 'PEAR/ErrorStack.php';
require_once 'PEAR/XMLParser.php';
require_once 'PEAR/Common.php';

/**
 * Error code if the channel.xml <channel> tag does not contain a valid version
 */
define('PEAR_CHANNELFILE_ERROR_NO_VERSION', 1);
/**
 * Error code if the channel.xml <channel> tag version is not supported (version 1.0 is the only supported version,
 * currently
 */
define('PEAR_CHANNELFILE_ERROR_INVALID_VERSION', 2);

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

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

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

/**#@+
 * Validation errors
 */
/**
 * Error code when channel name is missing
 */
define('PEAR_CHANNELFILE_ERROR_NO_NAME', 6);
/**
 * Error code when channel name is invalid
 */
define('PEAR_CHANNELFILE_ERROR_INVALID_NAME', 7);
/**
 * Error code when channel summary is missing
 */
define('PEAR_CHANNELFILE_ERROR_NO_SUMMARY', 8);
/**
 * Error code when channel summary is multi-line
 */
define('PEAR_CHANNELFILE_ERROR_MULTILINE_SUMMARY', 9);
/**
 * Error code when channel server is missing for protocol
 */
define('PEAR_CHANNELFILE_ERROR_NO_HOST', 10);
/**
 * Error code when channel server is invalid for protocol
 */
define('PEAR_CHANNELFILE_ERROR_INVALID_HOST', 11);
/**
 * Error code when a mirror name is invalid
 */
define('PEAR_CHANNELFILE_ERROR_INVALID_MIRROR', 21);
/**
 * Error code when a mirror type is invalid
 */
define('PEAR_CHANNELFILE_ERROR_INVALID_MIRRORTYPE', 22);
/**
 * Error code when an attempt is made to generate xml, but the parsed content is invalid
 */
define('PEAR_CHANNELFILE_ERROR_INVALID', 23);
/**
 * Error code when an empty package name validate regex is passed in
 */
define('PEAR_CHANNELFILE_ERROR_EMPTY_REGEX', 24);
/**
 * Error code when a <function> tag has no version
 */
define('PEAR_CHANNELFILE_ERROR_NO_FUNCTIONVERSION', 25);
/**
 * Error code when a <function> tag has no name
 */
define('PEAR_CHANNELFILE_ERROR_NO_FUNCTIONNAME', 26);
/**
 * Error code when a <validatepackage> tag has no name
 */
define('PEAR_CHANNELFILE_ERROR_NOVALIDATE_NAME', 27);
/**
 * Error code when a <validatepackage> tag has no version attribute
 */
define('PEAR_CHANNELFILE_ERROR_NOVALIDATE_VERSION', 28);
/**
 * Error code when a mirror does not exist but is called for in one of the set*
 * methods.
 */
define('PEAR_CHANNELFILE_ERROR_MIRROR_NOT_FOUND', 32);
/**
 * Error code when a server port is not numeric
 */
define('PEAR_CHANNELFILE_ERROR_INVALID_PORT', 33);
/**
 * Error code when <static> contains no version attribute
 */
define('PEAR_CHANNELFILE_ERROR_NO_STATICVERSION', 34);
/**
 * Error code when <baseurl> contains no type attribute in a <rest> protocol definition
 */
define('PEAR_CHANNELFILE_ERROR_NOBASEURLTYPE', 35);
/**
 * Error code when a mirror is defined and the channel.xml represents the __uri pseudo-channel
 */
define('PEAR_CHANNELFILE_URI_CANT_MIRROR', 36);
/**
 * Error code when ssl attribute is present and is not "yes"
 */
define('PEAR_CHANNELFILE_ERROR_INVALID_SSL', 37);
/**#@-*/

/**
 * Mirror types allowed.  Currently only internet servers are recognized.
 */
$GLOBALS['_PEAR_CHANNELS_MIRROR_TYPES'] =  array('server');

/**
 * The Channel handling class
 *
 * @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: 1.9.5
 * @link       http://pear.php.net/package/PEAR
 * @since      Class available since Release 1.4.0a1
 */
class PEAR_ChannelFile
{
    /**
     * @access private
     * @var PEAR_ErrorStack
     * @access private
     */
    var $_stack;

/**
     * Supported channel.xml versions, for parsing
     * @var array
     * @access private
     */
    var $_supportedVersions = array('1.0');

/**
     * Parsed channel information
     * @var array
     * @access private
     */
    var $_channelInfo;

/**
     * index into the subchannels array, used for parsing xml
     * @var int
     * @access private
     */
    var $_subchannelIndex;

/**
     * index into the mirrors array, used for parsing xml
     * @var int
     * @access private
     */
    var $_mirrorIndex;

/**
     * Flag used to determine the validity of parsed content
     * @var boolean
     * @access private
     */
    var $_isValid = false;

function PEAR_ChannelFile()
    {
        $this->_stack = &new PEAR_ErrorStack('PEAR_ChannelFile');
        $this->_stack->setErrorMessageTemplate($this->_getErrorMessage());
        $this->_isValid = false;
    }

/**
     * @return array
     * @access protected
     */
    function _getErrorMessage()
    {
        return
            array(
                PEAR_CHANNELFILE_ERROR_INVALID_VERSION =>
                    'While parsing channel.xml, an invalid version number "%version% was passed in, expecting one of %versions%',
                PEAR_CHANNELFILE_ERROR_NO_VERSION =>
                    'No version number found in <channel> tag',
                PEAR_CHANNELFILE_ERROR_NO_XML_EXT =>
                    '%error%',
                PEAR_CHANNELFILE_ERROR_CANT_MAKE_PARSER =>
                    'Unable to create XML parser',
                PEAR_CHANNELFILE_ERROR_PARSER_ERROR =>
                    '%error%',
                PEAR_CHANNELFILE_ERROR_NO_NAME =>
                    'Missing channel name',
                PEAR_CHANNELFILE_ERROR_INVALID_NAME =>
                    'Invalid channel %tag% "%name%"',
                PEAR_CHANNELFILE_ERROR_NO_SUMMARY =>
                    'Missing channel summary',
                PEAR_CHANNELFILE_ERROR_MULTILINE_SUMMARY =>
                    'Channel summary should be on one line, but is multi-line',
                PEAR_CHANNELFILE_ERROR_NO_HOST =>
                    'Missing channel server for %type% server',
                PEAR_CHANNELFILE_ERROR_INVALID_HOST =>
                    'Server name "%server%" is invalid for %type% server',
                PEAR_CHANNELFILE_ERROR_INVALID_MIRROR =>
                    'Invalid mirror name "%name%", mirror type %type%',
                PEAR_CHANNELFILE_ERROR_INVALID_MIRRORTYPE =>
                    'Invalid mirror type "%type%"',
                PEAR_CHANNELFILE_ERROR_INVALID =>
                    'Cannot generate xml, contents are invalid',
                PEAR_CHANNELFILE_ERROR_EMPTY_REGEX =>
                    'packagenameregex cannot be empty',
                PEAR_CHANNELFILE_ERROR_NO_FUNCTIONVERSION =>
                    '%parent% %protocol% function has no version',
                PEAR_CHANNELFILE_ERROR_NO_FUNCTIONNAME =>
                    '%parent% %protocol% function has no name',
                PEAR_CHANNELFILE_ERROR_NOBASEURLTYPE =>
                    '%parent% rest baseurl has no type',
                PEAR_CHANNELFILE_ERROR_NOVALIDATE_NAME =>
                    'Validation package has no name in <validatepackage> tag',
                PEAR_CHANNELFILE_ERROR_NOVALIDATE_VERSION =>
                    'Validation package "%package%" has no version',
                PEAR_CHANNELFILE_ERROR_MIRROR_NOT_FOUND =>
                    'Mirror "%mirror%" does not exist',
                PEAR_CHANNELFILE_ERROR_INVALID_PORT =>
                    'Port "%port%" must be numeric',
                PEAR_CHANNELFILE_ERROR_NO_STATICVERSION =>
                    '<static> tag must contain version attribute',
                PEAR_CHANNELFILE_URI_CANT_MIRROR =>
                    'The __uri pseudo-channel cannot have mirrors',
                PEAR_CHANNELFILE_ERROR_INVALID_SSL =>
                    '%server% has invalid ssl attribute "%ssl%" can only be yes or not present',
            );
    }

/**
     * @param string contents of package.xml file
     * @return bool success of parsing
     */
    function fromXmlString($data)
    {
        if (preg_match('/<channel\s+version="([0-9]+\.[0-9]+)"/', $data, $channelversion)) {
            if (!in_array($channelversion[1], $this->_supportedVersions)) {
                $this->_stack->push(PEAR_CHANNELFILE_ERROR_INVALID_VERSION, 'error',
                    array('version' => $channelversion[1]));
                return false;
            }
            $parser = new PEAR_XMLParser;
            $result = $parser->parse($data);
            if ($result !== true) {
                if ($result->getCode() == 1) {
                    $this->_stack->push(PEAR_CHANNELFILE_ERROR_NO_XML_EXT, 'error',
                        array('error' => $result->getMessage()));
                } else {
                    $this->_stack->push(PEAR_CHANNELFILE_ERROR_CANT_MAKE_PARSER, 'error');
                }
                return false;
            }
            $this->_channelInfo = $parser->getData();
            return true;
        } else {
            $this->_stack->push(PEAR_CHANNELFILE_ERROR_NO_VERSION, 'error', array('xml' => $data));
            return false;
        }
    }

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

/**
     * @param array
     * @static
     * @return PEAR_ChannelFile|false false if invalid
     */
    function &fromArray($data, $compatibility = false, $stackClass = 'PEAR_ErrorStack')
    {
        $a = new PEAR_ChannelFile($compatibility, $stackClass);
        $a->_fromArray($data);
        if (!$a->validate()) {
            $a = false;
            return $a;
        }
        return $a;
    }

/**
     * Unlike {@link fromArray()} this does not do any validation
     * @param array
     * @static
     * @return PEAR_ChannelFile
     */
    function &fromArrayWithErrors($data, $compatibility = false,
                                  $stackClass = 'PEAR_ErrorStack')
    {
        $a = new PEAR_ChannelFile($compatibility, $stackClass);
        $a->_fromArray($data);
        return $a;
    }

/**
     * @param array
     * @access private
     */
    function _fromArray($data)
    {
        $this->_channelInfo = $data;
    }

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

/**
     * Unindent given string (?)
     *
     * @param string $str The string that has to be unindented.
     * @return string
     * @access private
     */
    function _unIndent($str)
    {
        // remove leading newlines
        $str = preg_replace('/^[\r\n]+/', '', $str);
        // find whitespace at the beginning of the first line
        $indent_len = strspn($str, " \t");
        $indent = substr($str, 0, $indent_len);
        $data = '';
        // remove the same amount of whitespace from following lines
        foreach (explode("\n", $str) as $line) {
            if (substr($line, 0, $indent_len) == $indent) {
                $data .= substr($line, $indent_len) . "\n";
            }
        }
        return $data;
    }

/**
     * Parse a channel.xml file.  Expects the name of
     * a channel xml file as input.
     *
     * @param string  $descfile  name of channel xml file
     * @return bool success of parsing
     */
    function fromXmlFile($descfile)
    {
        if (!file_exists($descfile) || !is_file($descfile) || !is_readable($descfile) ||
             (!$fp = fopen($descfile, 'r'))) {
            require_once 'PEAR.php';
            return PEAR::raiseError("Unable to open $descfile");
        }

// read the whole thing so we only get one cdata callback
        // for each block of cdata
        fclose($fp);
        $data = file_get_contents($descfile);
        return $this->fromXmlString($data);
    }

/**
     * Parse channel information from different sources
     *
     * This method is able to extract information about a channel
     * from an .xml file or a string
     *
     * @access public
     * @param  string Filename of the source or the source itself
     * @return bool
     */
    function fromAny($info)
    {
        if (is_string($info) && file_exists($info) && strlen($info) < 255) {
            $tmp = substr($info, -4);
            if ($tmp == '.xml') {
                $info = $this->fromXmlFile($info);
            } else {
                $fp = fopen($info, "r");
                $test = fread($fp, 5);
                fclose($fp);
                if ($test == "<?xml") {
                    $info = $this->fromXmlFile($info);
                }
            }
            if (PEAR::isError($info)) {
                require_once 'PEAR.php';
                return PEAR::raiseError($info);
            }
        }
        if (is_string($info)) {
            $info = $this->fromXmlString($info);
        }
        return $info;
    }

/**
     * Return an XML document based on previous parsing and modifications
     *
     * @return string XML data
     *
     * @access public
     */
    function toXml()
    {
        if (!$this->_isValid && !$this->validate()) {
            $this->_validateError(PEAR_CHANNELFILE_ERROR_INVALID);
            return false;
        }
        if (!isset($this->_channelInfo['attribs']['version'])) {
            $this->_channelInfo['attribs']['version'] = '1.0';
        }
        $channelInfo = $this->_channelInfo;
        $ret = "<?xml version=\"1.0\" encoding=\"ISO-8859-1\" ?>\n";
        $ret .= "<channel version=\"" .
            $channelInfo['attribs']['version'] . "\" xmlns=\"http://pear.php.net/channel-1.0\"
  xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
  xsi:schemaLocation=\"http://pear.php.net/dtd/channel-"
            . $channelInfo['attribs']['version'] . " http://pear.php.net/dtd/channel-" .
            $channelInfo['attribs']['version'] . ".xsd\">
 <name>$channelInfo[name]</name>
 <summary>" . htmlspecialchars($channelInfo['summary'])."</summary>
";
        if (isset($channelInfo['suggestedalias'])) {
            $ret .= ' <suggestedalias>' . $channelInfo['suggestedalias'] . "</suggestedalias>\n";
        }
        if (isset($channelInfo['validatepackage'])) {
            $ret .= ' <validatepackage version="' .
                $channelInfo['validatepackage']['attribs']['version']. '">' .
                htmlspecialchars($channelInfo['validatepackage']['_content']) .
                "</validatepackage>\n";
        }
        $ret .= " <servers>\n";
        $ret .= '  <primary';
        if (isset($channelInfo['servers']['primary']['attribs']['ssl'])) {
            $ret .= ' ssl="' . $channelInfo['servers']['primary']['attribs']['ssl'] . '"';
        }
        if (isset($channelInfo['servers']['primary']['attribs']['port'])) {
            $ret .= ' port="' . $channelInfo['servers']['primary']['attribs']['port'] . '"';
        }
        $ret .= ">\n";
        if (isset($channelInfo['servers']['primary']['rest'])) {
            $ret .= $this->_makeRestXml($channelInfo['servers']['primary']['rest'], '   ');
        }
        $ret .= "  </primary>\n";
        if (isset($channelInfo['servers']['mirror'])) {
            $ret .= $this->_makeMirrorsXml($channelInfo);
        }
        $ret .= " </servers>\n";
        $ret .= "</channel>";
        return str_replace("\r", "\n", str_replace("\r\n", "\n", $ret));
    }

/**
     * Generate the <rest> tag
     * @access private
     */
    function _makeRestXml($info, $indent)
    {
        $ret = $indent . "<rest>\n";
        if (isset($info['baseurl']) && !isset($info['baseurl'][0])) {
            $info['baseurl'] = array($info['baseurl']);
        }

if (isset($info['baseurl'])) {
            foreach ($info['baseurl'] as $url) {
                $ret .= "$indent <baseurl type=\"" . $url['attribs']['type'] . "\"";
                $ret .= ">" . $url['_content'] . "</baseurl>\n";
            }
        }
        $ret .= $indent . "</rest>\n";
        return $ret;
    }

/**
     * Generate the <mirrors> tag
     * @access private
     */
    function _makeMirrorsXml($channelInfo)
    {
        $ret = "";
        if (!isset($channelInfo['servers']['mirror'][0])) {
            $channelInfo['servers']['mirror'] = array($channelInfo['servers']['mirror']);
        }
        foreach ($channelInfo['servers']['mirror'] as $mirror) {
            $ret .= '  <mirror host="' . $mirror['attribs']['host'] . '"';
            if (isset($mirror['attribs']['port'])) {
                $ret .= ' port="' . $mirror['attribs']['port'] . '"';
            }
            if (isset($mirror['attribs']['ssl'])) {
                $ret .= ' ssl="' . $mirror['attribs']['ssl'] . '"';
            }
            $ret .= ">\n";
            if (isset($mirror['rest'])) {
                if (isset($mirror['rest'])) {
                    $ret .= $this->_makeRestXml($mirror['rest'], '   ');
                }
                $ret .= "  </mirror>\n";
            } else {
                $ret .= "/>\n";
            }
        }
        return $ret;
    }

/**
     * Generate the <functions> tag
     * @access private
     */
    function _makeFunctionsXml($functions, $indent, $rest = false)
    {
        $ret = '';
        if (!isset($functions[0])) {
            $functions = array($functions);
        }
        foreach ($functions as $function) {
            $ret .= "$indent<function version=\"" . $function['attribs']['version'] . "\"";
            if ($rest) {
                $ret .= ' uri="' . $function['attribs']['uri'] . '"';
            }
            $ret .= ">" . $function['_content'] . "</function>\n";
        }
        return $ret;
    }

/**
     * 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);
        $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);
    }

/**
     * Validate parsed file.
     *
     * @access public
     * @return boolean
     */
    function validate()
    {
        $this->_isValid = true;
        $info = $this->_channelInfo;
        if (empty($info['name'])) {
            $this->_validateError(PEAR_CHANNELFILE_ERROR_NO_NAME);
        } elseif (!$this->validChannelServer($info['name'])) {
            if ($info['name'] != '__uri') {
                $this->_validateError(PEAR_CHANNELFILE_ERROR_INVALID_NAME, array('tag' => 'name',
                    'name' => $info['name']));
            }
        }
        if (empty($info['summary'])) {
            $this->_validateError(PEAR_CHANNELFILE_ERROR_NO_SUMMARY);
        } elseif (strpos(trim($info['summary']), "\n") !== false) {
            $this->_validateWarning(PEAR_CHANNELFILE_ERROR_MULTILINE_SUMMARY,
                array('summary' => $info['summary']));
        }
        if (isset($info['suggestedalias'])) {
            if (!$this->validChannelServer($info['suggestedalias'])) {
                $this->_validateError(PEAR_CHANNELFILE_ERROR_INVALID_NAME,
                    array('tag' => 'suggestedalias', 'name' =>$info['suggestedalias']));
            }
        }
        if (isset($info['localalias'])) {
            if (!$this->validChannelServer($info['localalias'])) {
                $this->_validateError(PEAR_CHANNELFILE_ERROR_INVALID_NAME,
                    array('tag' => 'localalias', 'name' =>$info['localalias']));
            }
        }
        if (isset($info['validatepackage'])) {
            if (!isset($info['validatepackage']['_content'])) {
                $this->_validateError(PEAR_CHANNELFILE_ERROR_NOVALIDATE_NAME);
            }
            if (!isset($info['validatepackage']['attribs']['version'])) {
                $content = isset($info['validatepackage']['_content']) ?
                    $info['validatepackage']['_content'] :
                    null;
                $this->_validateError(PEAR_CHANNELFILE_ERROR_NOVALIDATE_VERSION,
                    array('package' => $content));
            }
        }

if (isset($info['servers']['primary']['attribs'], $info['servers']['primary']['attribs']['port']) &&
              !is_numeric($info['servers']['primary']['attribs']['port'])) {
            $this->_validateError(PEAR_CHANNELFILE_ERROR_INVALID_PORT,
                array('port' => $info['servers']['primary']['attribs']['port']));
        }

if (isset($info['servers']['primary']['attribs'], $info['servers']['primary']['attribs']['ssl']) &&
              $info['servers']['primary']['attribs']['ssl'] != 'yes') {
            $this->_validateError(PEAR_CHANNELFILE_ERROR_INVALID_SSL,
                array('ssl' => $info['servers']['primary']['attribs']['ssl'],
                    'server' => $info['name']));
        }

if (isset($info['servers']['primary']['rest']) &&
              isset($info['servers']['primary']['rest']['baseurl'])) {
            $this->_validateFunctions('rest', $info['servers']['primary']['rest']['baseurl']);
        }
        if (isset($info['servers']['mirror'])) {
            if ($this->_channelInfo['name'] == '__uri') {
                $this->_validateError(PEAR_CHANNELFILE_URI_CANT_MIRROR);
            }
            if (!isset($info['servers']['mirror'][0])) {
                $info['servers']['mirror'] = array($info['servers']['mirror']);
            }
            foreach ($info['servers']['mirror'] as $mirror) {
                if (!isset($mirror['attribs']['host'])) {
                    $this->_validateError(PEAR_CHANNELFILE_ERROR_NO_HOST,
                      array('type' => 'mirror'));
                } elseif (!$this->validChannelServer($mirror['attribs']['host'])) {
                    $this->_validateError(PEAR_CHANNELFILE_ERROR_INVALID_HOST,
                        array('server' => $mirror['attribs']['host'], 'type' => 'mirror'));
                }
                if (isset($mirror['attribs']['ssl']) && $mirror['attribs']['ssl'] != 'yes') {
                    $this->_validateError(PEAR_CHANNELFILE_ERROR_INVALID_SSL,
                        array('ssl' => $info['ssl'], 'server' => $mirror['attribs']['host']));
                }
                if (isset($mirror['rest'])) {
                    $this->_validateFunctions('rest', $mirror['rest']['baseurl'],
                        $mirror['attribs']['host']);
                }
            }
        }
        return $this->_isValid;
    }

/**
     * @param string  rest - protocol name this function applies to
     * @param array the functions
     * @param string the name of the parent element (mirror name, for instance)
     */
    function _validateFunctions($protocol, $functions, $parent = '')
    {
        if (!isset($functions[0])) {
            $functions = array($functions);
        }

foreach ($functions as $function) {
            if (!isset($function['_content']) || empty($function['_content'])) {
                $this->_validateError(PEAR_CHANNELFILE_ERROR_NO_FUNCTIONNAME,
                    array('parent' => $parent, 'protocol' => $protocol));
            }

if ($protocol == 'rest') {
                if (!isset($function['attribs']['type']) ||
                      empty($function['attribs']['type'])) {
                    $this->_validateError(PEAR_CHANNELFILE_ERROR_NOBASEURLTYPE,
                        array('parent' => $parent, 'protocol' => $protocol));
                }
            } else {
                if (!isset($function['attribs']['version']) ||
                      empty($function['attribs']['version'])) {
                    $this->_validateError(PEAR_CHANNELFILE_ERROR_NO_FUNCTIONVERSION,
                        array('parent' => $parent, 'protocol' => $protocol));
                }
            }
        }
    }

/**
     * Test whether a string contains a valid channel server.
     * @param string $ver the package version to test
     * @return bool
     */
    function validChannelServer($server)
    {
        if ($server == '__uri') {
            return true;
        }
        return (bool) preg_match(PEAR_CHANNELS_SERVER_PREG, $server);
    }

/**
     * @return string|false
     */
    function getName()
    {
        if (isset($this->_channelInfo['name'])) {
            return $this->_channelInfo['name'];
        }

return false;
    }

/**
     * @return string|false
     */
    function getServer()
    {
        if (isset($this->_channelInfo['name'])) {
            return $this->_channelInfo['name'];
        }

return false;
    }

/**
     * @return int|80 port number to connect to
     */
    function getPort($mirror = false)
    {
        if ($mirror) {
            if ($mir = $this->getMirror($mirror)) {
                if (isset($mir['attribs']['port'])) {
                    return $mir['attribs']['port'];
                }

if ($this->getSSL($mirror)) {
                    return 443;
                }

return 80;
            }

return false;
        }

if (isset($this->_channelInfo['servers']['primary']['attribs']['port'])) {
            return $this->_channelInfo['servers']['primary']['attribs']['port'];
        }

if ($this->getSSL()) {
            return 443;
        }

return 80;
    }

/**
     * @return bool Determines whether secure sockets layer (SSL) is used to connect to this channel
     */
    function getSSL($mirror = false)
    {
        if ($mirror) {
            if ($mir = $this->getMirror($mirror)) {
                if (isset($mir['attribs']['ssl'])) {
                    return true;
                }

return false;
            }

return false;
        }

if (isset($this->_channelInfo['servers']['primary']['attribs']['ssl'])) {
            return true;
        }

return false;
    }

/**
     * @return string|false
     */
    function getSummary()
    {
        if (isset($this->_channelInfo['summary'])) {
            return $this->_channelInfo['summary'];
        }

return false;
    }

/**
     * @param string protocol type
     * @param string Mirror name
     * @return array|false
     */
    function getFunctions($protocol, $mirror = false)
    {
        if ($this->getName() == '__uri') {
            return false;
        }

$function = $protocol == 'rest' ? 'baseurl' : 'function';
        if ($mirror) {
            if ($mir = $this->getMirror($mirror)) {
                if (isset($mir[$protocol][$function])) {
                    return $mir[$protocol][$function];
                }
            }

return false;
        }

if (isset($this->_channelInfo['servers']['primary'][$protocol][$function])) {
            return $this->_channelInfo['servers']['primary'][$protocol][$function];
        }

return false;
    }

/**
     * @param string Protocol type
     * @param string Function name (null to return the
     *               first protocol of the type requested)
     * @param string Mirror name, if any
     * @return array
     */
     function getFunction($type, $name = null, $mirror = false)
     {
        $protocols = $this->getFunctions($type, $mirror);
        if (!$protocols) {
            return false;
        }

foreach ($protocols as $protocol) {
            if ($name === null) {
                return $protocol;
            }

if ($protocol['_content'] != $name) {
                continue;
            }

return $protocol;
        }

return false;
     }

/**
     * @param string protocol type
     * @param string protocol name
     * @param string version
     * @param string mirror name
     * @return boolean
     */
    function supports($type, $name = null, $mirror = false, $version = '1.0')
    {
        $protocols = $this->getFunctions($type, $mirror);
        if (!$protocols) {
            return false;
        }

foreach ($protocols as $protocol) {
            if ($protocol['attribs']['version'] != $version) {
                continue;
            }

if ($name === null) {
                return true;
            }

if ($protocol['_content'] != $name) {
                continue;
            }

return true;
        }

return false;
    }

/**
     * Determines whether a channel supports Representational State Transfer (REST) protocols
     * for retrieving channel information
     * @param string
     * @return bool
     */
    function supportsREST($mirror = false)
    {
        if ($mirror == $this->_channelInfo['name']) {
            $mirror = false;
        }

if ($mirror) {
            if ($mir = $this->getMirror($mirror)) {
                return isset($mir['rest']);
            }

return false;
        }

return isset($this->_channelInfo['servers']['primary']['rest']);
    }

/**
     * Get the URL to access a base resource.
     *
     * Hyperlinks in the returned xml will be used to retrieve the proper information
     * needed.  This allows extreme extensibility and flexibility in implementation
     * @param string Resource Type to retrieve
     */
    function getBaseURL($resourceType, $mirror = false)
    {
        if ($mirror == $this->_channelInfo['name']) {
            $mirror = false;
        }

if ($mirror) {
            $mir = $this->getMirror($mirror);
            if (!$mir) {
                return false;
            }

$rest = $mir['rest'];
        } else {
            $rest = $this->_channelInfo['servers']['primary']['rest'];
        }

if (!isset($rest['baseurl'][0])) {
            $rest['baseurl'] = array($rest['baseurl']);
        }

foreach ($rest['baseurl'] as $baseurl) {
            if (strtolower($baseurl['attribs']['type']) == strtolower($resourceType)) {
                return $baseurl['_content'];
            }
        }

return false;
    }

/**
     * Since REST does not implement RPC, provide this as a logical wrapper around
     * resetFunctions for REST
     * @param string|false mirror name, if any
     */
    function resetREST($mirror = false)
    {
        return $this->resetFunctions('rest', $mirror);
    }

/**
     * Empty all protocol definitions
     * @param string protocol type
     * @param string|false mirror name, if any
     */
    function resetFunctions($type, $mirror = false)
    {
        if ($mirror) {
            if (isset($this->_channelInfo['servers']['mirror'])) {
                $mirrors = $this->_channelInfo['servers']['mirror'];
                if (!isset($mirrors[0])) {
                    $mirrors = array($mirrors);
                }

foreach ($mirrors as $i => $mir) {
                    if ($mir['attribs']['host'] == $mirror) {
                        if (isset($this->_channelInfo['servers']['mirror'][$i][$type])) {
                            unset($this->_channelInfo['servers']['mirror'][$i][$type]);
                        }

return true;
                    }
                }

return false;
            }

return false;
        }

if (isset($this->_channelInfo['servers']['primary'][$type])) {
            unset($this->_channelInfo['servers']['primary'][$type]);
        }

return true;
    }

/**
     * Set a channel's protocols to the protocols supported by pearweb
     */
    function setDefaultPEARProtocols($version = '1.0', $mirror = false)
    {
        switch ($version) {
            case '1.0' :
                $this->resetREST($mirror);

if (!isset($this->_channelInfo['servers'])) {
                    $this->_channelInfo['servers'] = array('primary' =>
                        array('rest' => array()));
                } elseif (!isset($this->_channelInfo['servers']['primary'])) {
                    $this->_channelInfo['servers']['primary'] = array('rest' => array());
                }

return true;
            break;
            default :
                return false;
            break;
        }
    }

/**
     * @return array
     */
    function getMirrors()
    {
        if (isset($this->_channelInfo['servers']['mirror'])) {
            $mirrors = $this->_channelInfo['servers']['mirror'];
            if (!isset($mirrors[0])) {
                $mirrors = array($mirrors);
            }

return $mirrors;
        }

return array();
    }

/**
     * Get the unserialized XML representing a mirror
     * @return array|false
     */
    function getMirror($server)
    {
        foreach ($this->getMirrors() as $mirror) {
            if ($mirror['attribs']['host'] == $server) {
                return $mirror;
            }
        }

return false;
    }

/**
     * @param string
     * @return string|false
     * @error PEAR_CHANNELFILE_ERROR_NO_NAME
     * @error PEAR_CHANNELFILE_ERROR_INVALID_NAME
     */
    function setName($name)
    {
        return $this->setServer($name);
    }

/**
     * Set the socket number (port) that is used to connect to this channel
     * @param integer
     * @param string|false name of the mirror server, or false for the primary
     */
    function setPort($port, $mirror = false)
    {
        if ($mirror) {
            if (!isset($this->_channelInfo['servers']['mirror'])) {
                $this->_validateError(PEAR_CHANNELFILE_ERROR_MIRROR_NOT_FOUND,
                    array('mirror' => $mirror));
                return false;
            }

return false;
            } elseif ($this->_channelInfo['servers']['mirror']['attribs']['host'] == $mirror) {
                $this->_channelInfo['servers']['mirror']['attribs']['port'] = $port;
                $this->_isValid = false;
                return true;
            }
        }

$this->_channelInfo['servers']['primary']['attribs']['port'] = $port;
        $this->_isValid = false;
        return true;
    }

/**
     * Set the socket number (port) that is used to connect to this channel
     * @param bool Determines whether to turn on SSL support or turn it off
     * @param string|false name of the mirror server, or false for the primary
     */
    function setSSL($ssl = true, $mirror = false)
    {
        if ($mirror) {
            if (!isset($this->_channelInfo['servers']['mirror'])) {
                $this->_validateError(PEAR_CHANNELFILE_ERROR_MIRROR_NOT_FOUND,
                    array('mirror' => $mirror));
                return false;
            }

if (isset($this->_channelInfo['servers']['mirror'][0])) {
                foreach ($this->_channelInfo['servers']['mirror'] as $i => $mir) {
                    if ($mirror == $mir['attribs']['host']) {
                        if (!$ssl) {
                            if (isset($this->_channelInfo['servers']['mirror'][$i]
                                  ['attribs']['ssl'])) {
                                unset($this->_channelInfo['servers']['mirror'][$i]['attribs']['ssl']);
                            }
                        } else {
                            $this->_channelInfo['servers']['mirror'][$i]['attribs']['ssl'] = 'yes';
                        }

return true;
                    }
                }

return false;
            } elseif ($this->_channelInfo['servers']['mirror']['attribs']['host'] == $mirror) {
                if (!$ssl) {
                    if (isset($this->_channelInfo['servers']['mirror']['attribs']['ssl'])) {
                        unset($this->_channelInfo['servers']['mirror']['attribs']['ssl']);
                    }
                } else {
                    $this->_channelInfo['servers']['mirror']['attribs']['ssl'] = 'yes';
                }

$this->_isValid = false;
                return true;
            }
        }

if ($ssl) {
            $this->_channelInfo['servers']['primary']['attribs']['ssl'] = 'yes';
        } else {
            if (isset($this->_channelInfo['servers']['primary']['attribs']['ssl'])) {
                unset($this->_channelInfo['servers']['primary']['attribs']['ssl']);
            }
        }

$this->_isValid = false;
        return true;
    }

/**
     * @param string
     * @return string|false
     * @error PEAR_CHANNELFILE_ERROR_NO_SERVER
     * @error PEAR_CHANNELFILE_ERROR_INVALID_SERVER
     */
    function setServer($server, $mirror = false)
    {
        if (empty($server)) {
            $this->_validateError(PEAR_CHANNELFILE_ERROR_NO_SERVER);
            return false;
        } elseif (!$this->validChannelServer($server)) {
            $this->_validateError(PEAR_CHANNELFILE_ERROR_INVALID_NAME,
                array('tag' => 'name', 'name' => $server));
            return false;
        }

if ($mirror) {
            $found = false;
            foreach ($this->_channelInfo['servers']['mirror'] as $i => $mir) {
                if ($mirror == $mir['attribs']['host']) {
                    $found = true;
                    break;
                }
            }

if (!$found) {
                $this->_validateError(PEAR_CHANNELFILE_ERROR_MIRROR_NOT_FOUND,
                    array('mirror' => $mirror));
                return false;
            }

$this->_channelInfo['mirror'][$i]['attribs']['host'] = $server;
            return true;
        }

$this->_channelInfo['name'] = $server;
        return true;
    }

/**
     * @param string
     * @return boolean success
     * @error PEAR_CHANNELFILE_ERROR_NO_SUMMARY
     * @warning PEAR_CHANNELFILE_ERROR_MULTILINE_SUMMARY
     */
    function setSummary($summary)
    {
        if (empty($summary)) {
            $this->_validateError(PEAR_CHANNELFILE_ERROR_NO_SUMMARY);
            return false;
        } elseif (strpos(trim($summary), "\n") !== false) {
            $this->_validateWarning(PEAR_CHANNELFILE_ERROR_MULTILINE_SUMMARY,
                array('summary' => $summary));
        }

$this->_channelInfo['summary'] = $summary;
        return true;
    }

/**
     * @param string
     * @param boolean determines whether the alias is in channel.xml or local
     * @return boolean success
     */
    function setAlias($alias, $local = false)
    {
        if (!$this->validChannelServer($alias)) {
            $this->_validateError(PEAR_CHANNELFILE_ERROR_INVALID_NAME,
                array('tag' => 'suggestedalias', 'name' => $alias));
            return false;
        }

if ($local) {
            $this->_channelInfo['localalias'] = $alias;
        } else {
            $this->_channelInfo['suggestedalias'] = $alias;
        }

return true;
    }

/**
     * @return string
     */
    function getAlias()
    {
        if (isset($this->_channelInfo['localalias'])) {
            return $this->_channelInfo['localalias'];
        }
        if (isset($this->_channelInfo['suggestedalias'])) {
            return $this->_channelInfo['suggestedalias'];
        }
        if (isset($this->_channelInfo['name'])) {
            return $this->_channelInfo['name'];
        }
        return '';
    }

/**
     * Set the package validation object if it differs from PEAR's default
     * The class must be includeable via changing _ in the classname to path separator,
     * but no checking of this is made.
     * @param string|false pass in false to reset to the default packagename regex
     * @return boolean success
     */
    function setValidationPackage($validateclass, $version)
    {
        if (empty($validateclass)) {
            unset($this->_channelInfo['validatepackage']);
        }
        $this->_channelInfo['validatepackage'] = array('_content' => $validateclass);
        $this->_channelInfo['validatepackage']['attribs'] = array('version' => $version);
    }

/**
     * Add a protocol to the provides section
     * @param string protocol type
     * @param string protocol version
     * @param string protocol name, if any
     * @param string mirror name, if this is a mirror's protocol
     * @return bool
     */
    function addFunction($type, $version, $name = '', $mirror = false)
    {
        if ($mirror) {
            return $this->addMirrorFunction($mirror, $type, $version, $name);
        }

$set = array('attribs' => array('version' => $version), '_content' => $name);
        if (!isset($this->_channelInfo['servers']['primary'][$type]['function'])) {
            if (!isset($this->_channelInfo['servers'])) {
                $this->_channelInfo['servers'] = array('primary' =>
                    array($type => array()));
            } elseif (!isset($this->_channelInfo['servers']['primary'])) {
                $this->_channelInfo['servers']['primary'] = array($type => array());
            }

$this->_channelInfo['servers']['primary'][$type]['function'] = $set;
            $this->_isValid = false;
            return true;
        } elseif (!isset($this->_channelInfo['servers']['primary'][$type]['function'][0])) {
            $this->_channelInfo['servers']['primary'][$type]['function'] = array(
                $this->_channelInfo['servers']['primary'][$type]['function']);
        }

$this->_channelInfo['servers']['primary'][$type]['function'][] = $set;
        return true;
    }
    /**
     * Add a protocol to a mirror's provides section
     * @param string mirror name (server)
     * @param string protocol type
     * @param string protocol version
     * @param string protocol name, if any
     */
    function addMirrorFunction($mirror, $type, $version, $name = '')
    {
        if (!isset($this->_channelInfo['servers']['mirror'])) {
            $this->_validateError(PEAR_CHANNELFILE_ERROR_MIRROR_NOT_FOUND,
                array('mirror' => $mirror));
            return false;
        }

$setmirror = false;
        if (isset($this->_channelInfo['servers']['mirror'][0])) {
            foreach ($this->_channelInfo['servers']['mirror'] as $i => $mir) {
                if ($mirror == $mir['attribs']['host']) {
                    $setmirror = &$this->_channelInfo['servers']['mirror'][$i];
                    break;
                }
            }
        } else {
            if ($this->_channelInfo['servers']['mirror']['attribs']['host'] == $mirror) {
                $setmirror = &$this->_channelInfo['servers']['mirror'];
            }
        }

if (!$setmirror) {
            $this->_validateError(PEAR_CHANNELFILE_ERROR_MIRROR_NOT_FOUND,
                array('mirror' => $mirror));
            return false;
        }

$set = array('attribs' => array('version' => $version), '_content' => $name);
        if (!isset($setmirror[$type]['function'])) {
            $setmirror[$type]['function'] = $set;
            $this->_isValid = false;
            return true;
        } elseif (!isset($setmirror[$type]['function'][0])) {
            $setmirror[$type]['function'] = array($setmirror[$type]['function']);
        }

$setmirror[$type]['function'][] = $set;
        $this->_isValid = false;
        return true;
    }

/**
     * @param string Resource Type this url links to
     * @param string URL
     * @param string|false mirror name, if this is not a primary server REST base URL
     */
    function setBaseURL($resourceType, $url, $mirror = false)
    {
        if ($mirror) {
            if (!isset($this->_channelInfo['servers']['mirror'])) {
                $this->_validateError(PEAR_CHANNELFILE_ERROR_MIRROR_NOT_FOUND,
                    array('mirror' => $mirror));
                return false;
            }

$setmirror = false;
            if (isset($this->_channelInfo['servers']['mirror'][0])) {
                foreach ($this->_channelInfo['servers']['mirror'] as $i => $mir) {
                    if ($mirror == $mir['attribs']['host']) {
                        $setmirror = &$this->_channelInfo['servers']['mirror'][$i];
                        break;
                    }
                }
            } else {
                if ($this->_channelInfo['servers']['mirror']['attribs']['host'] == $mirror) {
                    $setmirror = &$this->_channelInfo['servers']['mirror'];
                }
            }
        } else {
            $setmirror = &$this->_channelInfo['servers']['primary'];
        }

$set = array('attribs' => array('type' => $resourceType), '_content' => $url);
        if (!isset($setmirror['rest'])) {
            $setmirror['rest'] = array();
        }

if (!isset($setmirror['rest']['baseurl'])) {
            $setmirror['rest']['baseurl'] = $set;
            $this->_isValid = false;
            return true;
        } elseif (!isset($setmirror['rest']['baseurl'][0])) {
            $setmirror['rest']['baseurl'] = array($setmirror['rest']['baseurl']);
        }

foreach ($setmirror['rest']['baseurl'] as $i => $url) {
            if ($url['attribs']['type'] == $resourceType) {
                $this->_isValid = false;
                $setmirror['rest']['baseurl'][$i] = $set;
                return true;
            }
        }

$setmirror['rest']['baseurl'][] = $set;
        $this->_isValid = false;
        return true;
    }

/**
     * @param string mirror server
     * @param int mirror http port
     * @return boolean
     */
    function addMirror($server, $port = null)
    {
        if ($this->_channelInfo['name'] == '__uri') {
            return false; // the __uri channel cannot have mirrors by definition
        }

$set = array('attribs' => array('host' => $server));
        if (is_numeric($port)) {
            $set['attribs']['port'] = $port;
        }

if (!isset($this->_channelInfo['servers']['mirror'])) {
            $this->_channelInfo['servers']['mirror'] = $set;
            return true;
        }

if (!isset($this->_channelInfo['servers']['mirror'][0])) {
            $this->_channelInfo['servers']['mirror'] =
                array($this->_channelInfo['servers']['mirror']);
        }

$this->_channelInfo['servers']['mirror'][] = $set;
        return true;
    }

/**
     * Retrieve the name of the validation package for this channel
     * @return string|false
     */
    function getValidationPackage()
    {
        if (!$this->_isValid && !$this->validate()) {
            return false;
        }

if (!isset($this->_channelInfo['validatepackage'])) {
            return array('attribs' => array('version' => 'default'),
                '_content' => 'PEAR_Validate');
        }

return $this->_channelInfo['validatepackage'];
    }

/**
     * Retrieve the object that can be used for custom validation
     * @param string|false the name of the package to validate.  If the package is
     *                     the channel validation package, PEAR_Validate is returned
     * @return PEAR_Validate|false false is returned if the validation package
     *         cannot be located
     */
    function &getValidationObject($package = false)
    {
        if (!class_exists('PEAR_Validate')) {
            require_once 'PEAR/Validate.php';
        }

if (!$this->_isValid) {
            if (!$this->validate()) {
                $a = false;
                return $a;
            }
        }

if (isset($this->_channelInfo['validatepackage'])) {
            if ($package == $this->_channelInfo['validatepackage']) {
                // channel validation packages are always validated by PEAR_Validate
                $val = &new PEAR_Validate;
                return $val;
            }

if (!class_exists(str_replace('.', '_',
                  $this->_channelInfo['validatepackage']['_content']))) {
                if ($this->isIncludeable(str_replace('_', '/',
                      $this->_channelInfo['validatepackage']['_content']) . '.php')) {
                    include_once str_replace('_', '/',
                        $this->_channelInfo['validatepackage']['_content']) . '.php';
                    $vclass = str_replace('.', '_',
                        $this->_channelInfo['validatepackage']['_content']);
                    $val = &new $vclass;
                } else {
                    $a = false;
                    return $a;
                }
            } else {
                $vclass = str_replace('.', '_',
                    $this->_channelInfo['validatepackage']['_content']);
                $val = &new $vclass;
            }
        } else {
            $val = &new PEAR_Validate;
        }

return $val;
    }

function isIncludeable($path)
    {
        $possibilities = explode(PATH_SEPARATOR, ini_get('include_path'));
        foreach ($possibilities as $dir) {
            if (file_exists($dir . DIRECTORY_SEPARATOR . $path)
                  && is_readable($dir . DIRECTORY_SEPARATOR . $path)) {
                return true;
            }
        }

return false;
    }

/**
     * This function is used by the channel updater and retrieves a value set by
     * the registry, or the current time if it has not been set
     * @return string
     */
    function lastModified()
    {
        if (isset($this->_channelInfo['_lastmodified'])) {
            return $this->_channelInfo['_lastmodified'];
        }

return time();
    }
}

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