X-Git-Url: http://wagnertech.de/gitweb/gitweb.cgi/timetracker.git/blobdiff_plain/098a79f0819ebb89b7d48df4a6b154af4560f68e..9a23a8c0a51b7ec38a96f525484134f3cb85dc7e:/WEB-INF/lib/pear/PEAR/ChannelFile.php diff --git a/WEB-INF/lib/pear/PEAR/ChannelFile.php b/WEB-INF/lib/pear/PEAR/ChannelFile.php new file mode 100644 index 00000000..f2c02ab4 --- /dev/null +++ b/WEB-INF/lib/pear/PEAR/ChannelFile.php @@ -0,0 +1,1559 @@ + + * @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 tag does not contain a valid version + */ +define('PEAR_CHANNELFILE_ERROR_NO_VERSION', 1); +/** + * Error code if the channel.xml 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 tag has no version + */ +define('PEAR_CHANNELFILE_ERROR_NO_FUNCTIONVERSION', 25); +/** + * Error code when a tag has no name + */ +define('PEAR_CHANNELFILE_ERROR_NO_FUNCTIONNAME', 26); +/** + * Error code when a tag has no name + */ +define('PEAR_CHANNELFILE_ERROR_NOVALIDATE_NAME', 27); +/** + * Error code when a 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 contains no version attribute + */ +define('PEAR_CHANNELFILE_ERROR_NO_STATICVERSION', 34); +/** + * Error code when contains no type attribute in a 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 + * @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 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 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 => + ' 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('/_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 == "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 = "\n"; + $ret .= " + $channelInfo[name] + " . htmlspecialchars($channelInfo['summary'])." +"; + if (isset($channelInfo['suggestedalias'])) { + $ret .= ' ' . $channelInfo['suggestedalias'] . "\n"; + } + if (isset($channelInfo['validatepackage'])) { + $ret .= ' ' . + htmlspecialchars($channelInfo['validatepackage']['_content']) . + "\n"; + } + $ret .= " \n"; + $ret .= ' _makeRestXml($channelInfo['servers']['primary']['rest'], ' '); + } + $ret .= " \n"; + if (isset($channelInfo['servers']['mirror'])) { + $ret .= $this->_makeMirrorsXml($channelInfo); + } + $ret .= " \n"; + $ret .= ""; + return str_replace("\r", "\n", str_replace("\r\n", "\n", $ret)); + } + + /** + * Generate the tag + * @access private + */ + function _makeRestXml($info, $indent) + { + $ret = $indent . "\n"; + if (isset($info['baseurl']) && !isset($info['baseurl'][0])) { + $info['baseurl'] = array($info['baseurl']); + } + + if (isset($info['baseurl'])) { + foreach ($info['baseurl'] as $url) { + $ret .= "$indent \n"; + } + } + $ret .= $indent . "\n"; + return $ret; + } + + /** + * Generate the tag + * @access private + */ + function _makeMirrorsXml($channelInfo) + { + $ret = ""; + if (!isset($channelInfo['servers']['mirror'][0])) { + $channelInfo['servers']['mirror'] = array($channelInfo['servers']['mirror']); + } + foreach ($channelInfo['servers']['mirror'] as $mirror) { + $ret .= ' _makeRestXml($mirror['rest'], ' '); + } + $ret .= " \n"; + } else { + $ret .= "/>\n"; + } + } + return $ret; + } + + /** + * Generate the tag + * @access private + */ + function _makeFunctionsXml($functions, $indent, $rest = false) + { + $ret = ''; + if (!isset($functions[0])) { + $functions = array($functions); + } + foreach ($functions as $function) { + $ret .= "$indent\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