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moodle/lib/phpxmlrpc/Client.php
Eloy Lafuente (stronk7) c958bd7305 MDL-76055 libraries: Import phpxmlrpc 4.8.0 release
2022-11-02 15:56:38 +01:00

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<?php
namespace PhpXmlRpc;
use PhpXmlRpc\Helper\Logger;
use PhpXmlRpc\Helper\XMLParser;
/**
* Used to represent a client of an XML-RPC server.
*/
class Client
{
const USE_CURL_NEVER = 0;
const USE_CURL_ALWAYS = 1;
const USE_CURL_AUTO = 2;
protected static $logger;
/// @todo: do these need to be public?
public $method = 'http';
public $server;
public $port = 0;
public $path;
public $errno;
public $errstr;
public $debug = 0;
public $username = '';
public $password = '';
public $authtype = 1;
public $cert = '';
public $certpass = '';
public $cacert = '';
public $cacertdir = '';
public $key = '';
public $keypass = '';
public $verifypeer = true;
public $verifyhost = 2;
public $sslversion = 0; // corresponds to CURL_SSLVERSION_DEFAULT
public $proxy = '';
public $proxyport = 0;
public $proxy_user = '';
public $proxy_pass = '';
public $proxy_authtype = 1;
public $cookies = array();
public $extracurlopts = array();
public $use_curl = self::USE_CURL_AUTO;
/**
* @var bool
*
* This determines whether the multicall() method will try to take advantage of the system.multicall xmlrpc method
* to dispatch to the server an array of requests in a single http roundtrip or simply execute many consecutive http
* calls. Defaults to FALSE, but it will be enabled automatically on the first failure of execution of
* system.multicall.
*/
public $no_multicall = false;
/**
* List of http compression methods accepted by the client for responses.
* NB: PHP supports deflate, gzip compressions out of the box if compiled w. zlib.
*
* NNB: you can set it to any non-empty array for HTTP11 and HTTPS, since in those cases it will be up to CURL to
* decide the compression methods it supports. You might check for the presence of 'zlib' in the output of
* curl_version() to determine whether compression is supported or not
*/
public $accepted_compression = array();
/**
* Name of compression scheme to be used for sending requests.
* Either null, gzip or deflate.
*/
public $request_compression = '';
/**
* CURL handle: used for keep-alive connections (PHP 4.3.8 up, see:
* http://curl.haxx.se/docs/faq.html#7.3).
* @internal
*/
public $xmlrpc_curl_handle = null;
/// Whether to use persistent connections for http 1.1 and https
public $keepalive = false;
/// Charset encodings that can be decoded without problems by the client
public $accepted_charset_encodings = array();
/**
* The charset encoding that will be used for serializing request sent by the client.
* It defaults to NULL, which means using US-ASCII and encoding all characters outside of the ASCII printable range
* using their xml character entity representation (this has the benefit that line end characters will not be mangled
* in the transfer, a CR-LF will be preserved as well as a singe LF).
* Valid values are 'US-ASCII', 'UTF-8' and 'ISO-8859-1'.
* For the fastest mode of operation, set your both your app internal encoding as well as this to UTF-8.
*/
public $request_charset_encoding = '';
/**
* Decides the content of Response objects returned by calls to send() and multicall().
* Valid values are 'xmlrpcvals', 'phpvals' or 'xml'.
*
* Determines whether the value returned inside an Response object as results of calls to the send() and multicall()
* methods will be a Value object, a plain php value or a raw xml string.
* Allowed values are 'xmlrpcvals' (the default), 'phpvals' and 'xml'.
* To allow the user to differentiate between a correct and a faulty response, fault responses will be returned as
* Response objects in any case.
* Note that the 'phpvals' setting will yield faster execution times, but some of the information from the original
* response will be lost. It will be e.g. impossible to tell whether a particular php string value was sent by the
* server as an xmlrpc string or base64 value.
*/
public $return_type = XMLParser::RETURN_XMLRPCVALS;
/**
* Sent to servers in http headers.
*/
public $user_agent;
public function getLogger()
{
if (self::$logger === null) {
self::$logger = Logger::instance();
}
return self::$logger;
}
public static function setLogger($logger)
{
self::$logger = $logger;
}
/**
* @param string $path either the PATH part of the xmlrpc server URL, or complete server URL (in which case you
* should use and empty string for all other parameters)
* e.g. /xmlrpc/server.php
* e.g. http://phpxmlrpc.sourceforge.net/server.php
* e.g. https://james:bond@secret.service.com:444/xmlrpcserver?agent=007
* e.g. h2://fast-and-secure-services.org/endpoint
* @param string $server the server name / ip address
* @param integer $port the port the server is listening on, when omitted defaults to 80 or 443 depending on
* protocol used
* @param string $method the http protocol variant: defaults to 'http'; 'https', 'http11', 'h2' and 'h2c' can
* be used if CURL is installed. The value set here can be overridden in any call to $this->send().
* Use 'h2' to make the lib attempt to use http/2 over a secure connection, and 'h2c'
* for http/2 without tls. Note that 'h2c' will not use the h2c 'upgrade' method, and be
* thus incompatible with any server/proxy not supporting http/2. This is because POST
* request are not compatible with h2c upgrade.
*/
public function __construct($path, $server = '', $port = '', $method = '')
{
// allow user to specify all params in $path
if ($server == '' && $port == '' && $method == '') {
$parts = parse_url($path);
$server = $parts['host'];
$path = isset($parts['path']) ? $parts['path'] : '';
if (isset($parts['query'])) {
$path .= '?' . $parts['query'];
}
if (isset($parts['fragment'])) {
$path .= '#' . $parts['fragment'];
}
if (isset($parts['port'])) {
$port = $parts['port'];
}
if (isset($parts['scheme'])) {
$method = $parts['scheme'];
}
if (isset($parts['user'])) {
$this->username = $parts['user'];
}
if (isset($parts['pass'])) {
$this->password = $parts['pass'];
}
}
if ($path == '' || $path[0] != '/') {
$this->path = '/' . $path;
} else {
$this->path = $path;
}
$this->server = $server;
if ($port != '') {
$this->port = $port;
}
if ($method != '') {
$this->method = $method;
}
// if ZLIB is enabled, let the client by default accept compressed responses
if (function_exists('gzinflate') || (
function_exists('curl_version') && (($info = curl_version()) &&
((is_string($info) && strpos($info, 'zlib') !== null) || isset($info['libz_version'])))
)
) {
$this->accepted_compression = array('gzip', 'deflate');
}
// keepalives: enabled by default
$this->keepalive = true;
// by default the xml parser can support these 3 charset encodings
$this->accepted_charset_encodings = array('UTF-8', 'ISO-8859-1', 'US-ASCII');
// Add all charsets which mbstring can handle, but remove junk not found in IANA registry at
// http://www.iana.org/assignments/character-sets/character-sets.xhtml
// NB: this is disabled to avoid making all the requests sent huge... mbstring supports more than 80 charsets!
/*if (function_exists('mb_list_encodings')) {
$encodings = array_diff(mb_list_encodings(), array('pass', 'auto', 'wchar', 'BASE64', 'UUENCODE', 'ASCII',
'HTML-ENTITIES', 'Quoted-Printable', '7bit','8bit', 'byte2be', 'byte2le', 'byte4be', 'byte4le'));
$this->accepted_charset_encodings = array_unique(array_merge($this->accepted_charset_encodings, $encodings));
}*/
// initialize user_agent string
$this->user_agent = PhpXmlRpc::$xmlrpcName . ' ' . PhpXmlRpc::$xmlrpcVersion;
}
/**
* Enable/disable the echoing to screen of the xmlrpc responses received. The default is not no output anything.
*
* The debugging information at level 1 includes the raw data returned from the XML-RPC server it was querying
* (including bot HTTP headers and the full XML payload), and the PHP value the client attempts to create to
* represent the value returned by the server
* At level2, the complete payload of the xmlrpc request is also printed, before being sent t the server.
*
* This option can be very useful when debugging servers as it allows you to see exactly what the client sends and
* the server returns.
*
* @param integer $level values 0, 1 and 2 are supported (2 = echo sent msg too, before received response)
*/
public function setDebug($level)
{
$this->debug = $level;
}
/**
* Sets the username and password for authorizing the client to the server.
*
* With the default (HTTP) transport, this information is used for HTTP Basic authorization.
* Note that username and password can also be set using the class constructor.
* With HTTP 1.1 and HTTPS transport, NTLM and Digest authentication protocols are also supported. To enable them use
* the constants CURLAUTH_DIGEST and CURLAUTH_NTLM as values for the auth type parameter.
*
* @param string $user username
* @param string $password password
* @param integer $authType auth type. See curl_setopt man page for supported auth types. Defaults to CURLAUTH_BASIC
* (basic auth). Note that auth types NTLM and Digest will only work if the Curl php
* extension is enabled.
*/
public function setCredentials($user, $password, $authType = 1)
{
$this->username = $user;
$this->password = $password;
$this->authtype = $authType;
}
/**
* Set the optional certificate and passphrase used in SSL-enabled communication with a remote server.
*
* Note: to retrieve information about the client certificate on the server side, you will need to look into the
* environment variables which are set up by the webserver. Different webservers will typically set up different
* variables.
*
* @param string $cert the name of a file containing a PEM formatted certificate
* @param string $certPass the password required to use it
*/
public function setCertificate($cert, $certPass = '')
{
$this->cert = $cert;
$this->certpass = $certPass;
}
/**
* Add a CA certificate to verify server with in SSL-enabled communication when SetSSLVerifypeer has been set to TRUE.
*
* See the php manual page about CURLOPT_CAINFO for more details.
*
* @param string $caCert certificate file name (or dir holding certificates)
* @param bool $isDir set to true to indicate cacert is a dir. defaults to false
*/
public function setCaCertificate($caCert, $isDir = false)
{
if ($isDir) {
$this->cacertdir = $caCert;
} else {
$this->cacert = $caCert;
}
}
/**
* Set attributes for SSL communication: private SSL key.
*
* NB: does not work in older php/curl installs.
* Thanks to Daniel Convissor.
*
* @param string $key The name of a file containing a private SSL key
* @param string $keyPass The secret password needed to use the private SSL key
*/
public function setKey($key, $keyPass)
{
$this->key = $key;
$this->keypass = $keyPass;
}
/**
* Set attributes for SSL communication: verify the remote host's SSL certificate, and cause the connection to fail
* if the cert verification fails.
*
* By default, verification is enabled.
* To specify custom SSL certificates to validate the server with, use the setCaCertificate method.
*
* @param bool $i enable/disable verification of peer certificate
*/
public function setSSLVerifyPeer($i)
{
$this->verifypeer = $i;
}
/**
* Set attributes for SSL communication: verify the remote host's SSL certificate's common name (CN).
*
* Note that support for value 1 has been removed in cURL 7.28.1
*
* @param int $i Set to 1 to only the existence of a CN, not that it matches
*/
public function setSSLVerifyHost($i)
{
$this->verifyhost = $i;
}
/**
* Set attributes for SSL communication: SSL version to use. Best left at 0 (default value): let cURL decide
*
* @param int $i
*/
public function setSSLVersion($i)
{
$this->sslversion = $i;
}
/**
* Set proxy info.
*
* NB: CURL versions before 7.11.10 cannot use a proxy to communicate with https servers.
*
* @param string $proxyHost
* @param string $proxyPort Defaults to 8080 for HTTP and 443 for HTTPS
* @param string $proxyUsername Leave blank if proxy has public access
* @param string $proxyPassword Leave blank if proxy has public access
* @param int $proxyAuthType defaults to CURLAUTH_BASIC (Basic authentication protocol); set to constant CURLAUTH_NTLM
* to use NTLM auth with proxy (has effect only when the client uses the HTTP 1.1 protocol)
*/
public function setProxy($proxyHost, $proxyPort, $proxyUsername = '', $proxyPassword = '', $proxyAuthType = 1)
{
$this->proxy = $proxyHost;
$this->proxyport = $proxyPort;
$this->proxy_user = $proxyUsername;
$this->proxy_pass = $proxyPassword;
$this->proxy_authtype = $proxyAuthType;
}
/**
* Enables/disables reception of compressed xmlrpc responses.
*
* This requires the "zlib" extension to be enabled in your php install. If it is, by default xmlrpc_client
* instances will enable reception of compressed content.
* Note that enabling reception of compressed responses merely adds some standard http headers to xmlrpc requests.
* It is up to the xmlrpc server to return compressed responses when receiving such requests.
*
* @param string $compMethod either 'gzip', 'deflate', 'any' or ''
*/
public function setAcceptedCompression($compMethod)
{
if ($compMethod == 'any') {
$this->accepted_compression = array('gzip', 'deflate');
} elseif ($compMethod == false) {
$this->accepted_compression = array();
} else {
$this->accepted_compression = array($compMethod);
}
}
/**
* Enables/disables http compression of xmlrpc request.
*
* This requires the "zlib" extension to be enabled in your php install.
* Take care when sending compressed requests: servers might not support them (and automatic fallback to
* uncompressed requests is not yet implemented).
*
* @param string $compMethod either 'gzip', 'deflate' or ''
*/
public function setRequestCompression($compMethod)
{
$this->request_compression = $compMethod;
}
/**
* Adds a cookie to list of cookies that will be sent to server with every further request (useful e.g. for keeping
* session info outside of the xml-rpc payload).
*
* NB: By default cookies are sent using the 'original/netscape' format, which is also the same as the RFC 2965;
* setting any param but name and value will turn the cookie into a 'version 1' cookie (i.e. RFC 2109 cookie) that
* might not be fully supported by the server. Note that RFC 2109 has currently 'historic' status...
*
* @param string $name nb: will not be escaped in the request's http headers. Take care not to use CTL chars or
* separators!
* @param string $value
* @param string $path leave this empty unless the xml-rpc server only accepts RFC 2109 cookies
* @param string $domain leave this empty unless the xml-rpc server only accepts RFC 2109 cookies
* @param int $port leave this empty unless the xml-rpc server only accepts RFC 2109 cookies
*
* @todo check correctness of urlencoding cookie value (copied from php way of doing it, but php is generally sending
* response not requests. We do the opposite...)
* @todo strip invalid chars from cookie name? As per RFC6265, we should follow RFC2616, Section 2.2
*/
public function setCookie($name, $value = '', $path = '', $domain = '', $port = null)
{
$this->cookies[$name]['value'] = rawurlencode($value);
if ($path || $domain || $port) {
$this->cookies[$name]['path'] = $path;
$this->cookies[$name]['domain'] = $domain;
$this->cookies[$name]['port'] = $port;
$this->cookies[$name]['version'] = 1;
} else {
$this->cookies[$name]['version'] = 0;
}
}
/**
* Directly set cURL options, for extra flexibility (when in cURL mode).
*
* It allows eg. to bind client to a specific IP interface / address.
*
* @param array $options
*/
public function setCurlOptions($options)
{
$this->extracurlopts = $options;
}
/**
* @param int $useCurlMode self::USE_CURL_ALWAYS, self::USE_CURL_AUTO or self::USE_CURL_NEVER
*/
public function setUseCurl($useCurlMode)
{
$this->use_curl = $useCurlMode;
}
/**
* Set user-agent string that will be used by this client instance in http headers sent to the server.
*
* The default user agent string includes the name of this library and the version number.
*
* @param string $agentString
*/
public function setUserAgent($agentString)
{
$this->user_agent = $agentString;
}
/**
* Send an xmlrpc request to the server.
*
* @param Request|Request[]|string $req The Request object, or an array of requests for using multicall, or the
* complete xml representation of a request.
* When sending an array of Request objects, the client will try to make use of
* a single 'system.multicall' xml-rpc method call to forward to the server all
* the requests in a single HTTP round trip, unless $this->no_multicall has
* been previously set to TRUE (see the multicall method below), in which case
* many consecutive xmlrpc requests will be sent. The method will return an
* array of Response objects in both cases.
* The third variant allows to build by hand (or any other means) a complete
* xmlrpc request message, and send it to the server. $req should be a string
* containing the complete xml representation of the request. It is e.g. useful
* when, for maximal speed of execution, the request is serialized into a
* string using the native php xmlrpc functions (see http://www.php.net/xmlrpc)
* @param integer $timeout Connection timeout, in seconds, If unspecified, a platform specific timeout will apply.
* This timeout value is passed to fsockopen(). It is also used for detecting server
* timeouts during communication (i.e. if the server does not send anything to the client
* for $timeout seconds, the connection will be closed).
* @param string $method valid values are 'http', 'http11', 'https', 'h2' and 'h2c'. If left unspecified,
* the http protocol chosen during creation of the object will be used.
* Use 'h2' to make the lib attempt to use http/2 over a secure connection, and 'h2c'
* for http/2 without tls. Note that 'h2c' will not use the h2c 'upgrade' method, and be
* thus incompatible with any server/proxy not supporting http/2. This is because POST
* request are not compatible with h2c upgrade.
*
* @return Response|Response[] Note that the client will always return a Response object, even if the call fails
* @todo allow throwing exceptions instead of returning responses in case of failed calls and/or Fault responses
* @todo refactor: we now support many options besides connection timeout and http version to use. Why only privilege those?
*/
public function send($req, $timeout = 0, $method = '')
{
// if user does not specify http protocol, use native method of this client
// (i.e. method set during call to constructor)
if ($method == '') {
$method = $this->method;
}
if (is_array($req)) {
// $req is an array of Requests
$r = $this->multicall($req, $timeout, $method);
return $r;
} elseif (is_string($req)) {
$n = new Request('');
$n->payload = $req;
$req = $n;
}
// where req is a Request
$req->setDebug($this->debug);
/// @todo we could be smarter about this and force usage of curl in scenarios where it is both available and
/// needed, such as digest or ntlm auth. Do not attempt to use it for https if not present
$useCurl = ($this->use_curl == self::USE_CURL_ALWAYS) || ($this->use_curl == self::USE_CURL_AUTO &&
(in_array($method, array('https', 'http11', 'h2c', 'h2'))));
if ($useCurl) {
$r = $this->sendPayloadCURL(
$req,
$this->server,
$this->port,
$timeout,
$this->username,
$this->password,
$this->authtype,
$this->cert,
$this->certpass,
$this->cacert,
$this->cacertdir,
$this->proxy,
$this->proxyport,
$this->proxy_user,
$this->proxy_pass,
$this->proxy_authtype,
// bc
$method == 'http11' ? 'http' : $method,
$this->keepalive,
$this->key,
$this->keypass,
$this->sslversion
);
} else {
// plain 'http 1.0': default to using socket
$r = $this->sendPayloadSocket(
$req,
$this->server,
$this->port,
$timeout,
$this->username,
$this->password,
$this->authtype,
$this->cert,
$this->certpass,
$this->cacert,
$this->cacertdir,
$this->proxy,
$this->proxyport,
$this->proxy_user,
$this->proxy_pass,
$this->proxy_authtype,
$method,
$this->key,
$this->keypass,
$this->sslversion
);
}
return $r;
}
/**
* @deprecated
* @param Request $req
* @param string $server
* @param int $port
* @param int $timeout
* @param string $username
* @param string $password
* @param int $authType
* @param string $proxyHost
* @param int $proxyPort
* @param string $proxyUsername
* @param string $proxyPassword
* @param int $proxyAuthType
* @param string $method
* @return Response
*/
protected function sendPayloadHTTP10($req, $server, $port, $timeout = 0, $username = '', $password = '',
$authType = 1, $proxyHost = '', $proxyPort = 0, $proxyUsername = '', $proxyPassword = '', $proxyAuthType = 1,
$method='http')
{
//trigger_error('Method ' . __METHOD__ . ' is deprecated', E_USER_DEPRECATED);
return $this->sendPayloadSocket($req, $server, $port, $timeout, $username, $password, $authType, null, null,
null, null, $proxyHost, $proxyPort, $proxyUsername, $proxyPassword, $proxyAuthType, $method);
}
/**
* @deprecated
* @param Request $req
* @param string $server
* @param int $port
* @param int $timeout
* @param string $username
* @param string $password
* @param int $authType
* @param string $cert
* @param string $certPass
* @param string $caCert
* @param string $caCertDir
* @param string $proxyHost
* @param int $proxyPort
* @param string $proxyUsername
* @param string $proxyPassword
* @param int $proxyAuthType
* @param bool $keepAlive
* @param string $key
* @param string $keyPass
* @param int $sslVersion
* @return Response
*/
protected function sendPayloadHTTPS($req, $server, $port, $timeout = 0, $username = '', $password = '',
$authType = 1, $cert = '', $certPass = '', $caCert = '', $caCertDir = '', $proxyHost = '', $proxyPort = 0,
$proxyUsername = '', $proxyPassword = '', $proxyAuthType = 1, $keepAlive = false, $key = '', $keyPass = '',
$sslVersion = 0)
{
//trigger_error('Method ' . __METHOD__ . ' is deprecated', E_USER_DEPRECATED);
return $this->sendPayloadCURL($req, $server, $port, $timeout, $username,
$password, $authType, $cert, $certPass, $caCert, $caCertDir, $proxyHost, $proxyPort,
$proxyUsername, $proxyPassword, $proxyAuthType, 'https', $keepAlive, $key, $keyPass, $sslVersion);
}
/**
* @param Request $req
* @param string $server
* @param int $port
* @param int $timeout
* @param string $username
* @param string $password
* @param int $authType only value supported is 1
* @param string $cert
* @param string $certPass
* @param string $caCert
* @param string $caCertDir
* @param string $proxyHost
* @param int $proxyPort
* @param string $proxyUsername
* @param string $proxyPassword
* @param int $proxyAuthType only value supported is 1
* @param string $method 'http' (synonym for 'http10'), 'http10' or 'https'
* @param string $key
* @param string $keyPass @todo not implemented yet.
* @param int $sslVersion @todo not implemented yet. See http://php.net/manual/en/migration56.openssl.php
* @return Response
*
* @todo refactor: we get many options for the call passed in, but some we use from $this. We should clean that up
*/
protected function sendPayloadSocket($req, $server, $port, $timeout = 0, $username = '', $password = '',
$authType = 1, $cert = '', $certPass = '', $caCert = '', $caCertDir = '', $proxyHost = '', $proxyPort = 0,
$proxyUsername = '', $proxyPassword = '', $proxyAuthType = 1, $method='http', $key = '', $keyPass = '',
$sslVersion = 0)
{
/// @todo log a warning if passed an unsupported method
if ($port == 0) {
$port = ( $method === 'https' ) ? 443 : 80;
}
// Only create the payload if it was not created previously
if (empty($req->payload)) {
$req->serialize($this->request_charset_encoding);
}
$payload = $req->payload;
// Deflate request body and set appropriate request headers
$encodingHdr = '';
if (function_exists('gzdeflate') && ($this->request_compression == 'gzip' || $this->request_compression == 'deflate')) {
if ($this->request_compression == 'gzip') {
$a = @gzencode($payload);
if ($a) {
$payload = $a;
$encodingHdr = "Content-Encoding: gzip\r\n";
}
} else {
$a = @gzcompress($payload);
if ($a) {
$payload = $a;
$encodingHdr = "Content-Encoding: deflate\r\n";
}
}
}
// thanks to Grant Rauscher <grant7@firstworld.net> for this
$credentials = '';
if ($username != '') {
$credentials = 'Authorization: Basic ' . base64_encode($username . ':' . $password) . "\r\n";
if ($authType != 1) {
$this->getLogger()->errorLog('XML-RPC: ' . __METHOD__ . ': warning. Only Basic auth is supported with HTTP 1.0');
}
}
$acceptedEncoding = '';
if (is_array($this->accepted_compression) && count($this->accepted_compression)) {
$acceptedEncoding = 'Accept-Encoding: ' . implode(', ', $this->accepted_compression) . "\r\n";
}
$proxyCredentials = '';
if ($proxyHost) {
if ($proxyPort == 0) {
$proxyPort = 8080;
}
$connectServer = $proxyHost;
$connectPort = $proxyPort;
$transport = 'tcp';
$uri = 'http://' . $server . ':' . $port . $this->path;
if ($proxyUsername != '') {
if ($proxyAuthType != 1) {
$this->getLogger()->errorLog('XML-RPC: ' . __METHOD__ . ': warning. Only Basic auth to proxy is supported with HTTP 1.0');
}
$proxyCredentials = 'Proxy-Authorization: Basic ' . base64_encode($proxyUsername . ':' . $proxyPassword) . "\r\n";
}
} else {
$connectServer = $server;
$connectPort = $port;
$transport = ( $method === 'https' ) ? 'tls' : 'tcp';
$uri = $this->path;
}
// Cookie generation, as per rfc2965 (version 1 cookies) or netscape's rules (version 0 cookies)
$cookieHeader = '';
if (count($this->cookies)) {
$version = '';
foreach ($this->cookies as $name => $cookie) {
if ($cookie['version']) {
$version = ' $Version="' . $cookie['version'] . '";';
$cookieHeader .= ' ' . $name . '="' . $cookie['value'] . '";';
if ($cookie['path']) {
$cookieHeader .= ' $Path="' . $cookie['path'] . '";';
}
if ($cookie['domain']) {
$cookieHeader .= ' $Domain="' . $cookie['domain'] . '";';
}
if ($cookie['port']) {
$cookieHeader .= ' $Port="' . $cookie['port'] . '";';
}
} else {
$cookieHeader .= ' ' . $name . '=' . $cookie['value'] . ";";
}
}
$cookieHeader = 'Cookie:' . $version . substr($cookieHeader, 0, -1) . "\r\n";
}
// omit port if default
if (($port == 80 && in_array($method, array('http', 'http10'))) || ($port == 443 && $method == 'https')) {
$port = '';
} else {
$port = ':' . $port;
}
$op = 'POST ' . $uri . " HTTP/1.0\r\n" .
'User-Agent: ' . $this->user_agent . "\r\n" .
'Host: ' . $server . $port . "\r\n" .
$credentials .
$proxyCredentials .
$acceptedEncoding .
$encodingHdr .
'Accept-Charset: ' . implode(',', $this->accepted_charset_encodings) . "\r\n" .
$cookieHeader .
'Content-Type: ' . $req->content_type . "\r\nContent-Length: " .
strlen($payload) . "\r\n\r\n" .
$payload;
if ($this->debug > 1) {
$this->getLogger()->debugMessage("---SENDING---\n$op\n---END---");
}
$contextOptions = array();
if ($method == 'https') {
if ($cert != '') {
$contextOptions['ssl']['local_cert'] = $cert;
if ($certPass != '') {
$contextOptions['ssl']['passphrase'] = $certPass;
}
}
if ($caCert != '') {
$contextOptions['ssl']['cafile'] = $caCert;
}
if ($caCertDir != '') {
$contextOptions['ssl']['capath'] = $caCertDir;
}
if ($key != '') {
$contextOptions['ssl']['local_pk'] = $key;
}
$contextOptions['ssl']['verify_peer'] = $this->verifypeer;
$contextOptions['ssl']['verify_peer_name'] = $this->verifypeer;
}
$context = stream_context_create($contextOptions);
if ($timeout <= 0) {
$connectTimeout = ini_get('default_socket_timeout');
} else {
$connectTimeout = $timeout;
}
$this->errno = 0;
$this->errstr = '';
$fp = @stream_socket_client("$transport://$connectServer:$connectPort", $this->errno, $this->errstr, $connectTimeout,
STREAM_CLIENT_CONNECT, $context);
if ($fp) {
if ($timeout > 0) {
stream_set_timeout($fp, $timeout);
}
} else {
if ($this->errstr == '') {
$err = error_get_last();
$this->errstr = $err['message'];
}
$this->errstr = 'Connect error: ' . $this->errstr;
$r = new Response(0, PhpXmlRpc::$xmlrpcerr['http_error'], $this->errstr . ' (' . $this->errno . ')');
return $r;
}
if (!fputs($fp, $op, strlen($op))) {
fclose($fp);
$this->errstr = 'Write error';
$r = new Response(0, PhpXmlRpc::$xmlrpcerr['http_error'], $this->errstr);
return $r;
}
// Close socket before parsing.
// It should yield slightly better execution times, and make easier recursive calls (e.g. to follow http redirects)
$ipd = '';
do {
// shall we check for $data === FALSE?
// as per the manual, it signals an error
$ipd .= fread($fp, 32768);
} while (!feof($fp));
fclose($fp);
$r = $req->parseResponse($ipd, false, $this->return_type);
return $r;
}
/**
* Contributed by Justin Miller <justin@voxel.net>
* Requires curl to be built into PHP
* NB: CURL versions before 7.11.10 cannot use proxy to talk to https servers!
*
* @param Request $req
* @param string $server
* @param int $port
* @param int $timeout
* @param string $username
* @param string $password
* @param int $authType
* @param string $cert
* @param string $certPass
* @param string $caCert
* @param string $caCertDir
* @param string $proxyHost
* @param int $proxyPort
* @param string $proxyUsername
* @param string $proxyPassword
* @param int $proxyAuthType
* @param string $method 'http' (let curl decide), 'http10', 'http11', 'https', 'h2c' or 'h2'
* @param bool $keepAlive
* @param string $key
* @param string $keyPass
* @param int $sslVersion
* @return Response
*
* @todo refactor: we get many options for the call passed in, but some we use from $this. We should clean that up
*/
protected function sendPayloadCURL($req, $server, $port, $timeout = 0, $username = '', $password = '',
$authType = 1, $cert = '', $certPass = '', $caCert = '', $caCertDir = '', $proxyHost = '', $proxyPort = 0,
$proxyUsername = '', $proxyPassword = '', $proxyAuthType = 1, $method = 'https', $keepAlive = false, $key = '',
$keyPass = '', $sslVersion = 0)
{
if (!function_exists('curl_init')) {
$this->errstr = 'CURL unavailable on this install';
return new Response(0, PhpXmlRpc::$xmlrpcerr['no_curl'], PhpXmlRpc::$xmlrpcstr['no_curl']);
}
if ($method == 'https' || $method == 'h2') {
// q: what about installs where we get back a string, but curl is linked to other ssl libs than openssl?
if (($info = curl_version()) &&
((is_string($info) && strpos($info, 'OpenSSL') === null) || (is_array($info) && !isset($info['ssl_version'])))
) {
$this->errstr = 'SSL unavailable on this install';
return new Response(0, PhpXmlRpc::$xmlrpcerr['no_ssl'], PhpXmlRpc::$xmlrpcstr['no_ssl']);
}
}
if (($method == 'h2' && !defined('CURL_HTTP_VERSION_2_0')) ||
($method == 'h2c' && !defined('CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE'))) {
$this->errstr = 'HTTP/2 unavailable on this install';
return new Response(0, PhpXmlRpc::$xmlrpcerr['no_http2'], PhpXmlRpc::$xmlrpcstr['no_http2']);
}
$curl = $this->prepareCurlHandle($req, $server, $port, $timeout, $username, $password,
$authType, $cert, $certPass, $caCert, $caCertDir, $proxyHost, $proxyPort,
$proxyUsername, $proxyPassword, $proxyAuthType, $method, $keepAlive, $key,
$keyPass, $sslVersion);
$result = curl_exec($curl);
if ($this->debug > 1) {
$message = "---CURL INFO---\n";
foreach (curl_getinfo($curl) as $name => $val) {
if (is_array($val)) {
$val = implode("\n", $val);
}
$message .= $name . ': ' . $val . "\n";
}
$message .= '---END---';
$this->getLogger()->debugMessage($message);
}
if (!$result) {
/// @todo we should use a better check here - what if we get back '' or '0'?
$this->errstr = 'no response';
$resp = new Response(0, PhpXmlRpc::$xmlrpcerr['curl_fail'], PhpXmlRpc::$xmlrpcstr['curl_fail'] . ': ' . curl_error($curl));
curl_close($curl);
if ($keepAlive) {
$this->xmlrpc_curl_handle = null;
}
} else {
if (!$keepAlive) {
curl_close($curl);
}
$resp = $req->parseResponse($result, true, $this->return_type);
// if we got back a 302, we can not reuse the curl handle for later calls
if ($resp->faultCode() == PhpXmlRpc::$xmlrpcerr['http_error'] && $keepAlive) {
curl_close($curl);
$this->xmlrpc_curl_handle = null;
}
}
return $resp;
}
protected function prepareCurlHandle($req, $server, $port, $timeout = 0, $username = '', $password = '',
$authType = 1, $cert = '', $certPass = '', $caCert = '', $caCertDir = '', $proxyHost = '', $proxyPort = 0,
$proxyUsername = '', $proxyPassword = '', $proxyAuthType = 1, $method = 'https', $keepAlive = false, $key = '',
$keyPass = '', $sslVersion = 0)
{
if ($port == 0) {
if (in_array($method, array('http', 'http10', 'http11', 'h2c'))) {
$port = 80;
} else {
$port = 443;
}
}
// Only create the payload if it was not created previously
if (empty($req->payload)) {
$req->serialize($this->request_charset_encoding);
}
// Deflate request body and set appropriate request headers
$payload = $req->payload;
if (function_exists('gzdeflate') && ($this->request_compression == 'gzip' || $this->request_compression == 'deflate')) {
if ($this->request_compression == 'gzip') {
$a = @gzencode($payload);
if ($a) {
$payload = $a;
$encodingHdr = 'Content-Encoding: gzip';
}
} else {
$a = @gzcompress($payload);
if ($a) {
$payload = $a;
$encodingHdr = 'Content-Encoding: deflate';
}
}
} else {
$encodingHdr = '';
}
if (!$keepAlive || !$this->xmlrpc_curl_handle) {
if ($method == 'http11' || $method == 'http10' || $method == 'h2c') {
$protocol = 'http';
} else {
if ($method == 'h2') {
$protocol = 'https';
} else {
// http, https
$protocol = $method;
}
}
$curl = curl_init($protocol . '://' . $server . ':' . $port . $this->path);
if ($keepAlive) {
$this->xmlrpc_curl_handle = $curl;
}
} else {
$curl = $this->xmlrpc_curl_handle;
}
// results into variable
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
if ($this->debug > 1) {
curl_setopt($curl, CURLOPT_VERBOSE, true);
/// @todo allow callers to redirect curlopt_stderr to some stream which can be buffered
}
curl_setopt($curl, CURLOPT_USERAGENT, $this->user_agent);
// required for XMLRPC: post the data
curl_setopt($curl, CURLOPT_POST, 1);
// the data
curl_setopt($curl, CURLOPT_POSTFIELDS, $payload);
// return the header too
curl_setopt($curl, CURLOPT_HEADER, 1);
// NB: if we set an empty string, CURL will add http header indicating
// ALL methods it is supporting. This is possibly a better option than letting the user tell what curl can / cannot do...
if (is_array($this->accepted_compression) && count($this->accepted_compression)) {
//curl_setopt($curl, CURLOPT_ENCODING, implode(',', $this->accepted_compression));
// empty string means 'any supported by CURL' (shall we catch errors in case CURLOPT_SSLKEY undefined ?)
if (count($this->accepted_compression) == 1) {
curl_setopt($curl, CURLOPT_ENCODING, $this->accepted_compression[0]);
} else {
curl_setopt($curl, CURLOPT_ENCODING, '');
}
}
// extra headers
$headers = array('Content-Type: ' . $req->content_type, 'Accept-Charset: ' . implode(',', $this->accepted_charset_encodings));
// if no keepalive is wanted, let the server know it in advance
if (!$keepAlive) {
$headers[] = 'Connection: close';
}
// request compression header
if ($encodingHdr) {
$headers[] = $encodingHdr;
}
// Fix the HTTP/1.1 417 Expectation Failed Bug (curl by default adds a 'Expect: 100-continue' header when POST
// size exceeds 1025 bytes, apparently)
$headers[] = 'Expect:';
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
// timeout is borked
if ($timeout) {
curl_setopt($curl, CURLOPT_TIMEOUT, $timeout == 1 ? 1 : $timeout - 1);
}
switch($method) {
case 'http10':
curl_setopt($curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
break;
case 'http11':
curl_setopt($curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
break;
case 'h2c':
curl_setopt($curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE);
break;
case 'h2':
curl_setopt($curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
break;
}
if ($username && $password) {
curl_setopt($curl, CURLOPT_USERPWD, $username . ':' . $password);
if (defined('CURLOPT_HTTPAUTH')) {
curl_setopt($curl, CURLOPT_HTTPAUTH, $authType);
} elseif ($authType != 1) {
$this->getLogger()->errorLog('XML-RPC: ' . __METHOD__ . ': warning. Only Basic auth is supported by the current PHP/curl install');
}
}
if ($method == 'https' || $method == 'h2') {
// set cert file
if ($cert) {
curl_setopt($curl, CURLOPT_SSLCERT, $cert);
}
// set cert password
if ($certPass) {
curl_setopt($curl, CURLOPT_SSLCERTPASSWD, $certPass);
}
// whether to verify remote host's cert
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, $this->verifypeer);
// set ca certificates file/dir
if ($caCert) {
curl_setopt($curl, CURLOPT_CAINFO, $caCert);
}
if ($caCertDir) {
curl_setopt($curl, CURLOPT_CAPATH, $caCertDir);
}
// set key file (shall we catch errors in case CURLOPT_SSLKEY undefined ?)
if ($key) {
curl_setopt($curl, CURLOPT_SSLKEY, $key);
}
// set key password (shall we catch errors in case CURLOPT_SSLKEY undefined ?)
if ($keyPass) {
curl_setopt($curl, CURLOPT_SSLKEYPASSWD, $keyPass);
}
// whether to verify cert's common name (CN); 0 for no, 1 to verify that it exists, and 2 to verify that
// it matches the hostname used
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, $this->verifyhost);
// allow usage of different SSL versions
curl_setopt($curl, CURLOPT_SSLVERSION, $sslVersion);
}
// proxy info
if ($proxyHost) {
if ($proxyPort == 0) {
$proxyPort = 8080; // NB: even for HTTPS, local connection is on port 8080
}
curl_setopt($curl, CURLOPT_PROXY, $proxyHost . ':' . $proxyPort);
if ($proxyUsername) {
curl_setopt($curl, CURLOPT_PROXYUSERPWD, $proxyUsername . ':' . $proxyPassword);
if (defined('CURLOPT_PROXYAUTH')) {
curl_setopt($curl, CURLOPT_PROXYAUTH, $proxyAuthType);
} elseif ($proxyAuthType != 1) {
$this->getLogger()->errorLog('XML-RPC: ' . __METHOD__ . ': warning. Only Basic auth to proxy is supported by the current PHP/curl install');
}
}
}
// NB: should we build cookie http headers by hand rather than let CURL do it?
// the following code does not honour 'expires', 'path' and 'domain' cookie attributes set to client obj the the user...
if (count($this->cookies)) {
$cookieHeader = '';
foreach ($this->cookies as $name => $cookie) {
$cookieHeader .= $name . '=' . $cookie['value'] . '; ';
}
curl_setopt($curl, CURLOPT_COOKIE, substr($cookieHeader, 0, -2));
}
foreach ($this->extracurlopts as $opt => $val) {
curl_setopt($curl, $opt, $val);
}
if ($this->debug > 1) {
$this->getLogger()->debugMessage("---SENDING---\n$payload\n---END---");
}
return $curl;
}
/**
* Send an array of requests and return an array of responses.
*
* Unless $this->no_multicall has been set to true, it will try first to use one single xmlrpc call to server method
* system.multicall, and revert to sending many successive calls in case of failure.
* This failure is also stored in $this->no_multicall for subsequent calls.
* Unfortunately, there is no server error code universally used to denote the fact that multicall is unsupported,
* so there is no way to reliably distinguish between that and a temporary failure.
* If you are sure that server supports multicall and do not want to fallback to using many single calls, set the
* fourth parameter to FALSE.
*
* NB: trying to shoehorn extra functionality into existing syntax has resulted
* in pretty much convoluted code...
*
* @param Request[] $reqs an array of Request objects
* @param integer $timeout connection timeout (in seconds). See the details in the docs for the send() method
* @param string $method the http protocol variant to be used. See the details in the docs for the send() method
* @param boolean fallback When true, upon receiving an error during multicall, multiple single calls will be
* attempted
*
* @return Response[]
*/
public function multicall($reqs, $timeout = 0, $method = '', $fallback = true)
{
if ($method == '') {
$method = $this->method;
}
if (!$this->no_multicall) {
$results = $this->_try_multicall($reqs, $timeout, $method);
if (is_array($results)) {
// System.multicall succeeded
return $results;
} else {
// either system.multicall is unsupported by server,
// or call failed for some other reason.
if ($fallback) {
// Don't try it next time...
$this->no_multicall = true;
} else {
if (is_a($results, '\PhpXmlRpc\Response')) {
$result = $results;
} else {
$result = new Response(0, PhpXmlRpc::$xmlrpcerr['multicall_error'], PhpXmlRpc::$xmlrpcstr['multicall_error']);
}
}
}
} else {
// override fallback, in case careless user tries to do two
// opposite things at the same time
$fallback = true;
}
$results = array();
if ($fallback) {
// system.multicall is (probably) unsupported by server:
// emulate multicall via multiple requests
/// @todo use curl multi_ functions to make this quicker
foreach ($reqs as $req) {
$results[] = $this->send($req, $timeout, $method);
}
} else {
// user does NOT want to fallback on many single calls:
// since we should always return an array of responses,
// return an array with the same error repeated n times
foreach ($reqs as $req) {
$results[] = $result;
}
}
return $results;
}
/**
* Attempt to boxcar $reqs via system.multicall.
*
* Returns either an array of Response, a single error Response or false (when received response does not respect
* valid multicall syntax).
*
* @param Request[] $reqs
* @param int $timeout
* @param string $method
* @return Response[]|false|mixed|Response
*/
private function _try_multicall($reqs, $timeout, $method)
{
// Construct multicall request
$calls = array();
foreach ($reqs as $req) {
$call['methodName'] = new Value($req->method(), 'string');
$numParams = $req->getNumParams();
$params = array();
for ($i = 0; $i < $numParams; $i++) {
$params[$i] = $req->getParam($i);
}
$call['params'] = new Value($params, 'array');
$calls[] = new Value($call, 'struct');
}
$multiCall = new Request('system.multicall');
$multiCall->addParam(new Value($calls, 'array'));
// Attempt RPC call
$result = $this->send($multiCall, $timeout, $method);
if ($result->faultCode() != 0) {
// call to system.multicall failed
return $result;
}
// Unpack responses.
$rets = $result->value();
if ($this->return_type == 'xml') {
return $rets;
} elseif ($this->return_type == 'phpvals') {
/// @todo test this code branch...
$rets = $result->value();
if (!is_array($rets)) {
return false; // bad return type from system.multicall
}
$numRets = count($rets);
if ($numRets != count($reqs)) {
return false; // wrong number of return values.
}
$response = array();
for ($i = 0; $i < $numRets; $i++) {
$val = $rets[$i];
if (!is_array($val)) {
return false;
}
switch (count($val)) {
case 1:
if (!isset($val[0])) {
return false; // Bad value
}
// Normal return value
$response[$i] = new Response($val[0], 0, '', 'phpvals');
break;
case 2:
/// @todo remove usage of @: it is apparently quite slow
$code = @$val['faultCode'];
if (!is_int($code)) {
return false;
}
$str = @$val['faultString'];
if (!is_string($str)) {
return false;
}
$response[$i] = new Response(0, $code, $str);
break;
default:
return false;
}
}
return $response;
} else {
// return type == 'xmlrpcvals'
$rets = $result->value();
if ($rets->kindOf() != 'array') {
return false; // bad return type from system.multicall
}
$numRets = $rets->count();
if ($numRets != count($reqs)) {
return false; // wrong number of return values.
}
$response = array();
foreach($rets as $val) {
switch ($val->kindOf()) {
case 'array':
if ($val->count() != 1) {
return false; // Bad value
}
// Normal return value
$response[] = new Response($val[0]);
break;
case 'struct':
$code = $val['faultCode'];
/** @var Value $code */
if ($code->kindOf() != 'scalar' || $code->scalartyp() != 'int') {
return false;
}
$str = $val['faultString'];
/** @var Value $str */
if ($str->kindOf() != 'scalar' || $str->scalartyp() != 'string') {
return false;
}
$response[] = new Response(0, $code->scalarval(), $str->scalarval());
break;
default:
return false;
}
}
return $response;
}
}
}
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