--- /dev/null
+<?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: ChannelFile.php 313023 2011-07-06 19:17:11Z dufuz $
+ * @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: 1.9.4
+ * @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' => $mirror));
+ return false;
+ }
+
+ if (isset($this->_channelInfo['servers']['mirror'][0])) {
+ foreach ($this->_channelInfo['servers']['mirror'] as $i => $mir) {
+ if ($mirror == $mir['attribs']['host']) {
+ $this->_channelInfo['servers']['mirror'][$i]['attribs']['port'] = $port;
+ return true;
+ }
+ }
+
+ return false;
+ } elseif ($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();
+ }
+}
\ No newline at end of file