\n";
+ }
+ else
+ {
+ return "\n\n";
+ }
+ }
+
+ /**
+ * @access private
+ */
+ function xml_footer()
+ {
+ return '';
+ }
+
+ /**
+ * @access private
+ */
+ function kindOf()
+ {
+ return 'msg';
+ }
+
+ /**
+ * @access private
+ */
+ function createPayload($charset_encoding='')
+ {
+ if ($charset_encoding != '')
+ $this->content_type = 'text/xml; charset=' . $charset_encoding;
+ else
+ $this->content_type = 'text/xml';
+ $this->payload=$this->xml_header($charset_encoding);
+ $this->payload.='' . $this->methodname . "\n";
+ $this->payload.="\n";
+ for($i=0; $iparams); $i++)
+ {
+ $p=$this->params[$i];
+ $this->payload.="\n" . $p->serialize($charset_encoding) .
+ "\n";
+ }
+ $this->payload.="\n";
+ $this->payload.=$this->xml_footer();
+ }
+
+ /**
+ * Gets/sets the xmlrpc method to be invoked
+ * @param string $meth the method to be set (leave empty not to set it)
+ * @return string the method that will be invoked
+ * @access public
+ */
+ function method($meth='')
+ {
+ if($meth!='')
+ {
+ $this->methodname=$meth;
+ }
+ return $this->methodname;
+ }
+
+ /**
+ * Returns xml representation of the message. XML prologue included
+ * @return string the xml representation of the message, xml prologue included
+ * @access public
+ */
+ function serialize($charset_encoding='')
+ {
+ $this->createPayload($charset_encoding);
+ return $this->payload;
+ }
+
+ /**
+ * Add a parameter to the list of parameters to be used upon method invocation
+ * @param xmlrpcval $par
+ * @return boolean false on failure
+ * @access public
+ */
+ function addParam($par)
+ {
+ // add check: do not add to self params which are not xmlrpcvals
+ if(is_object($par) && is_a($par, 'xmlrpcval'))
+ {
+ $this->params[]=$par;
+ return true;
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ /**
+ * Returns the nth parameter in the message. The index zero-based.
+ * @param integer $i the index of the parameter to fetch (zero based)
+ * @return xmlrpcval the i-th parameter
+ * @access public
+ */
+ function getParam($i) { return $this->params[$i]; }
+
+ /**
+ * Returns the number of parameters in the messge.
+ * @return integer the number of parameters currently set
+ * @access public
+ */
+ function getNumParams() { return count($this->params); }
+
+ /**
+ * Given an open file handle, read all data available and parse it as axmlrpc response.
+ * NB: the file handle is not closed by this function.
+ * NNB: might have trouble in rare cases to work on network streams, as we
+ * check for a read of 0 bytes instead of feof($fp).
+ * But since checking for feof(null) returns false, we would risk an
+ * infinite loop in that case, because we cannot trust the caller
+ * to give us a valid pointer to an open file...
+ * @access public
+ * @return xmlrpcresp
+ * @todo add 2nd & 3rd param to be passed to ParseResponse() ???
+ */
+ function &parseResponseFile($fp)
+ {
+ $ipd='';
+ while($data=fread($fp, 32768))
+ {
+ $ipd.=$data;
+ }
+ //fclose($fp);
+ $r =& $this->parseResponse($ipd);
+ return $r;
+ }
+
+ /**
+ * Parses HTTP headers and separates them from data.
+ * @access private
+ */
+ function &parseResponseHeaders(&$data, $headers_processed=false)
+ {
+ // Support "web-proxy-tunelling" connections for https through proxies
+ if(preg_match('/^HTTP\/1\.[0-1] 200 Connection established/', $data))
+ {
+ // Look for CR/LF or simple LF as line separator,
+ // (even though it is not valid http)
+ $pos = strpos($data,"\r\n\r\n");
+ if($pos || is_int($pos))
+ {
+ $bd = $pos+4;
+ }
+ else
+ {
+ $pos = strpos($data,"\n\n");
+ if($pos || is_int($pos))
+ {
+ $bd = $pos+2;
+ }
+ else
+ {
+ // No separation between response headers and body: fault?
+ $bd = 0;
+ }
+ }
+ if ($bd)
+ {
+ // this filters out all http headers from proxy.
+ // maybe we could take them into account, too?
+ $data = substr($data, $bd);
+ }
+ else
+ {
+ error_log('XML-RPC: xmlrpcmsg::parseResponse: HTTPS via proxy error, tunnel connection possibly failed');
+ $r= new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['http_error'], $GLOBALS['xmlrpcstr']['http_error']. ' (HTTPS via proxy error, tunnel connection possibly failed)');
+ return $r;
+ }
+ }
+
+ // Strip HTTP 1.1 100 Continue header if present
+ while(preg_match('/^HTTP\/1\.1 1[0-9]{2} /', $data))
+ {
+ $pos = strpos($data, 'HTTP', 12);
+ // server sent a Continue header without any (valid) content following...
+ // give the client a chance to know it
+ if(!$pos && !is_int($pos)) // works fine in php 3, 4 and 5
+ {
+ break;
+ }
+ $data = substr($data, $pos);
+ }
+ if(!preg_match('/^HTTP\/[0-9.]+ 200 /', $data))
+ {
+ $errstr= substr($data, 0, strpos($data, "\n")-1);
+ error_log('XML-RPC: xmlrpcmsg::parseResponse: HTTP error, got response: ' .$errstr);
+ $r= new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['http_error'], $GLOBALS['xmlrpcstr']['http_error']. ' (' . $errstr . ')');
+ return $r;
+ }
+
+ $GLOBALS['_xh']['headers'] = array();
+ $GLOBALS['_xh']['cookies'] = array();
+
+ // be tolerant to usage of \n instead of \r\n to separate headers and data
+ // (even though it is not valid http)
+ $pos = strpos($data,"\r\n\r\n");
+ if($pos || is_int($pos))
+ {
+ $bd = $pos+4;
+ }
+ else
+ {
+ $pos = strpos($data,"\n\n");
+ if($pos || is_int($pos))
+ {
+ $bd = $pos+2;
+ }
+ else
+ {
+ // No separation between response headers and body: fault?
+ // we could take some action here instead of going on...
+ $bd = 0;
+ }
+ }
+ // be tolerant to line endings, and extra empty lines
+ $ar = split("\r?\n", trim(substr($data, 0, $pos)));
+ while(list(,$line) = @each($ar))
+ {
+ // take care of multi-line headers and cookies
+ $arr = explode(':',$line,2);
+ if(count($arr) > 1)
+ {
+ $header_name = strtolower(trim($arr[0]));
+ /// @todo some other headers (the ones that allow a CSV list of values)
+ /// do allow many values to be passed using multiple header lines.
+ /// We should add content to $GLOBALS['_xh']['headers'][$header_name]
+ /// instead of replacing it for those...
+ if ($header_name == 'set-cookie' || $header_name == 'set-cookie2')
+ {
+ if ($header_name == 'set-cookie2')
+ {
+ // version 2 cookies:
+ // there could be many cookies on one line, comma separated
+ $cookies = explode(',', $arr[1]);
+ }
+ else
+ {
+ $cookies = array($arr[1]);
+ }
+ foreach ($cookies as $cookie)
+ {
+ // glue together all received cookies, using a comma to separate them
+ // (same as php does with getallheaders())
+ if (isset($GLOBALS['_xh']['headers'][$header_name]))
+ $GLOBALS['_xh']['headers'][$header_name] .= ', ' . trim($cookie);
+ else
+ $GLOBALS['_xh']['headers'][$header_name] = trim($cookie);
+ // parse cookie attributes, in case user wants to correctly honour them
+ // feature creep: only allow rfc-compliant cookie attributes?
+ // @todo support for server sending multiple time cookie with same name, but using different PATHs
+ $cookie = explode(';', $cookie);
+ foreach ($cookie as $pos => $val)
+ {
+ $val = explode('=', $val, 2);
+ $tag = trim($val[0]);
+ $val = trim(@$val[1]);
+ /// @todo with version 1 cookies, we should strip leading and trailing " chars
+ if ($pos == 0)
+ {
+ $cookiename = $tag;
+ $GLOBALS['_xh']['cookies'][$tag] = array();
+ $GLOBALS['_xh']['cookies'][$cookiename]['value'] = urldecode($val);
+ }
+ else
+ {
+ if ($tag != 'value')
+ {
+ $GLOBALS['_xh']['cookies'][$cookiename][$tag] = $val;
+ }
+ }
+ }
+ }
+ }
+ else
+ {
+ $GLOBALS['_xh']['headers'][$header_name] = trim($arr[1]);
+ }
+ }
+ elseif(isset($header_name))
+ {
+ /// @todo version1 cookies might span multiple lines, thus breaking the parsing above
+ $GLOBALS['_xh']['headers'][$header_name] .= ' ' . trim($line);
+ }
+ }
+
+ $data = substr($data, $bd);
+
+ if($this->debug && count($GLOBALS['_xh']['headers']))
+ {
+ print '';
+ foreach($GLOBALS['_xh']['headers'] as $header => $value)
+ {
+ print htmlentities("HEADER: $header: $value\n");
+ }
+ foreach($GLOBALS['_xh']['cookies'] as $header => $value)
+ {
+ print htmlentities("COOKIE: $header={$value['value']}\n");
+ }
+ print "\n";
+ }
+
+ // if CURL was used for the call, http headers have been processed,
+ // and dechunking + reinflating have been carried out
+ if(!$headers_processed)
+ {
+ // Decode chunked encoding sent by http 1.1 servers
+ if(isset($GLOBALS['_xh']['headers']['transfer-encoding']) && $GLOBALS['_xh']['headers']['transfer-encoding'] == 'chunked')
+ {
+ if(!$data = decode_chunked($data))
+ {
+ error_log('XML-RPC: xmlrpcmsg::parseResponse: errors occurred when trying to rebuild the chunked data received from server');
+ $r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['dechunk_fail'], $GLOBALS['xmlrpcstr']['dechunk_fail']);
+ return $r;
+ }
+ }
+
+ // Decode gzip-compressed stuff
+ // code shamelessly inspired from nusoap library by Dietrich Ayala
+ if(isset($GLOBALS['_xh']['headers']['content-encoding']))
+ {
+ $GLOBALS['_xh']['headers']['content-encoding'] = str_replace('x-', '', $GLOBALS['_xh']['headers']['content-encoding']);
+ if($GLOBALS['_xh']['headers']['content-encoding'] == 'deflate' || $GLOBALS['_xh']['headers']['content-encoding'] == 'gzip')
+ {
+ // if decoding works, use it. else assume data wasn't gzencoded
+ if(function_exists('gzinflate'))
+ {
+ if($GLOBALS['_xh']['headers']['content-encoding'] == 'deflate' && $degzdata = @gzuncompress($data))
+ {
+ $data = $degzdata;
+ if($this->debug)
+ print "---INFLATED RESPONSE---[".strlen($data)." chars]---\n" . htmlentities($data) . "\n---END---
";
+ }
+ elseif($GLOBALS['_xh']['headers']['content-encoding'] == 'gzip' && $degzdata = @gzinflate(substr($data, 10)))
+ {
+ $data = $degzdata;
+ if($this->debug)
+ print "---INFLATED RESPONSE---[".strlen($data)." chars]---\n" . htmlentities($data) . "\n---END---
";
+ }
+ else
+ {
+ error_log('XML-RPC: xmlrpcmsg::parseResponse: errors occurred when trying to decode the deflated data received from server');
+ $r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['decompress_fail'], $GLOBALS['xmlrpcstr']['decompress_fail']);
+ return $r;
+ }
+ }
+ else
+ {
+ error_log('XML-RPC: xmlrpcmsg::parseResponse: the server sent deflated data. Your php install must have the Zlib extension compiled in to support this.');
+ $r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['cannot_decompress'], $GLOBALS['xmlrpcstr']['cannot_decompress']);
+ return $r;
+ }
+ }
+ }
+ } // end of 'if needed, de-chunk, re-inflate response'
+
+ // real stupid hack to avoid PHP 4 complaining about returning NULL by ref
+ $r = null;
+ $r =& $r;
+ return $r;
+ }
+
+ /**
+ * Parse the xmlrpc response contained in the string $data and return an xmlrpcresp object.
+ * @param string $data the xmlrpc response, eventually including http headers
+ * @param bool $headers_processed when true prevents parsing HTTP headers for interpretation of content-encoding and consequent decoding
+ * @param string $return_type decides return type, i.e. content of response->value(). Either 'xmlrpcvals', 'xml' or 'phpvals'
+ * @return xmlrpcresp
+ * @access public
+ */
+ function &parseResponse($data='', $headers_processed=false, $return_type='xmlrpcvals')
+ {
+ if($this->debug)
+ {
+ //by maHo, replaced htmlspecialchars with htmlentities
+ print "---GOT---\n" . htmlentities($data) . "\n---END---\n
";
+ }
+
+ if($data == '')
+ {
+ error_log('XML-RPC: xmlrpcmsg::parseResponse: no response received from server.');
+ $r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['no_data'], $GLOBALS['xmlrpcstr']['no_data']);
+ return $r;
+ }
+
+ $GLOBALS['_xh']=array();
+
+ $raw_data = $data;
+ // parse the HTTP headers of the response, if present, and separate them from data
+ if(substr($data, 0, 4) == 'HTTP')
+ {
+ $r =& $this->parseResponseHeaders($data, $headers_processed);
+ if ($r)
+ {
+ // failed processing of HTTP response headers
+ // save into response obj the full payload received, for debugging
+ $r->raw_data = $data;
+ return $r;
+ }
+ }
+ else
+ {
+ $GLOBALS['_xh']['headers'] = array();
+ $GLOBALS['_xh']['cookies'] = array();
+ }
+
+ if($this->debug)
+ {
+ $start = strpos($data, '', $start);
+ $comments = substr($data, $start, $end-$start);
+ print "---SERVER DEBUG INFO (DECODED) ---\n\t".htmlentities(str_replace("\n", "\n\t", base64_decode($comments)))."\n---END---\n";
+ }
+ }
+
+ // be tolerant of extra whitespace in response body
+ $data = trim($data);
+
+ /// @todo return an error msg if $data=='' ?
+
+ // be tolerant of junk after methodResponse (e.g. javascript ads automatically inserted by free hosts)
+ // idea from Luca Mariano originally in PEARified version of the lib
+ $bd = false;
+ // Poor man's version of strrpos for php 4...
+ $pos = strpos($data, '');
+ while($pos || is_int($pos))
+ {
+ $bd = $pos+17;
+ $pos = strpos($data, '', $bd);
+ }
+ if($bd)
+ {
+ $data = substr($data, 0, $bd);
+ }
+
+ // if user wants back raw xml, give it to him
+ if ($return_type == 'xml')
+ {
+ $r = new xmlrpcresp($data, 0, '', 'xml');
+ $r->hdrs = $GLOBALS['_xh']['headers'];
+ $r->_cookies = $GLOBALS['_xh']['cookies'];
+ $r->raw_data = $raw_data;
+ return $r;
+ }
+
+ // try to 'guestimate' the character encoding of the received response
+ $resp_encoding = guess_encoding(@$GLOBALS['_xh']['headers']['content-type'], $data);
+
+ $GLOBALS['_xh']['ac']='';
+ //$GLOBALS['_xh']['qt']=''; //unused...
+ $GLOBALS['_xh']['stack'] = array();
+ $GLOBALS['_xh']['valuestack'] = array();
+ $GLOBALS['_xh']['isf']=0; // 0 = OK, 1 for xmlrpc fault responses, 2 = invalid xmlrpc
+ $GLOBALS['_xh']['isf_reason']='';
+ $GLOBALS['_xh']['rt']=''; // 'methodcall or 'methodresponse'
+
+ // if response charset encoding is not known / supported, try to use
+ // the default encoding and parse the xml anyway, but log a warning...
+ if (!in_array($resp_encoding, array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
+ // the following code might be better for mb_string enabled installs, but
+ // makes the lib about 200% slower...
+ //if (!is_valid_charset($resp_encoding, array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
+ {
+ error_log('XML-RPC: xmlrpcmsg::parseResponse: invalid charset encoding of received response: '.$resp_encoding);
+ $resp_encoding = $GLOBALS['xmlrpc_defencoding'];
+ }
+ $parser = xml_parser_create($resp_encoding);
+ xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
+ // G. Giunta 2005/02/13: PHP internally uses ISO-8859-1, so we have to tell
+ // the xml parser to give us back data in the expected charset.
+ // What if internal encoding is not in one of the 3 allowed?
+ // we use the broadest one, ie. utf8
+ // This allows to send data which is native in various charset,
+ // by extending xmlrpc_encode_entitites() and setting xmlrpc_internalencoding
+ if (!in_array($GLOBALS['xmlrpc_internalencoding'], array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
+ {
+ xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, 'UTF-8');
+ }
+ else
+ {
+ xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, $GLOBALS['xmlrpc_internalencoding']);
+ }
+
+ if ($return_type == 'phpvals')
+ {
+ xml_set_element_handler($parser, 'xmlrpc_se', 'xmlrpc_ee_fast');
+ }
+ else
+ {
+ xml_set_element_handler($parser, 'xmlrpc_se', 'xmlrpc_ee');
+ }
+
+ xml_set_character_data_handler($parser, 'xmlrpc_cd');
+ xml_set_default_handler($parser, 'xmlrpc_dh');
+
+ // first error check: xml not well formed
+ if(!xml_parse($parser, $data, count($data)))
+ {
+ // thanks to Peter Kocks
+ if((xml_get_current_line_number($parser)) == 1)
+ {
+ $errstr = 'XML error at line 1, check URL';
+ }
+ else
+ {
+ $errstr = sprintf('XML error: %s at line %d, column %d',
+ xml_error_string(xml_get_error_code($parser)),
+ xml_get_current_line_number($parser), xml_get_current_column_number($parser));
+ }
+ error_log($errstr);
+ $r= new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['invalid_return'], $GLOBALS['xmlrpcstr']['invalid_return'].' ('.$errstr.')');
+ xml_parser_free($parser);
+ if($this->debug)
+ {
+ print $errstr;
+ }
+ $r->hdrs = $GLOBALS['_xh']['headers'];
+ $r->_cookies = $GLOBALS['_xh']['cookies'];
+ $r->raw_data = $raw_data;
+ return $r;
+ }
+ xml_parser_free($parser);
+ // second error check: xml well formed but not xml-rpc compliant
+ if ($GLOBALS['_xh']['isf'] > 1)
+ {
+ if ($this->debug)
+ {
+ /// @todo echo something for user?
+ }
+
+ $r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['invalid_return'],
+ $GLOBALS['xmlrpcstr']['invalid_return'] . ' ' . $GLOBALS['_xh']['isf_reason']);
+ }
+ // third error check: parsing of the response has somehow gone boink.
+ // NB: shall we omit this check, since we trust the parsing code?
+ elseif ($return_type == 'xmlrpcvals' && !is_object($GLOBALS['_xh']['value']))
+ {
+ // something odd has happened
+ // and it's time to generate a client side error
+ // indicating something odd went on
+ $r= new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['invalid_return'],
+ $GLOBALS['xmlrpcstr']['invalid_return']);
+ }
+ else
+ {
+ if ($this->debug)
+ {
+ print "---PARSED---\n";
+ // somehow htmlentities chokes on var_export, and some full html string...
+ //print htmlentitites(var_export($GLOBALS['_xh']['value'], true));
+ print htmlspecialchars(var_export($GLOBALS['_xh']['value'], true));
+ print "\n---END---
";
+ }
+
+ // note that using =& will raise an error if $GLOBALS['_xh']['st'] does not generate an object.
+ $v =& $GLOBALS['_xh']['value'];
+
+ if($GLOBALS['_xh']['isf'])
+ {
+ /// @todo we should test here if server sent an int and a string,
+ /// and/or coerce them into such...
+ if ($return_type == 'xmlrpcvals')
+ {
+ $errno_v = $v->structmem('faultCode');
+ $errstr_v = $v->structmem('faultString');
+ $errno = $errno_v->scalarval();
+ $errstr = $errstr_v->scalarval();
+ }
+ else
+ {
+ $errno = $v['faultCode'];
+ $errstr = $v['faultString'];
+ }
+
+ if($errno == 0)
+ {
+ // FAULT returned, errno needs to reflect that
+ $errno = -1;
+ }
+
+ $r = new xmlrpcresp(0, $errno, $errstr);
+ }
+ else
+ {
+ $r= new xmlrpcresp($v, 0, '', $return_type);
+ }
+ }
+
+ $r->hdrs = $GLOBALS['_xh']['headers'];
+ $r->_cookies = $GLOBALS['_xh']['cookies'];
+ $r->raw_data = $raw_data;
+ return $r;
+ }
+ }
+
+ class xmlrpcval
+ {
+ var $me=array();
+ var $mytype=0;
+ var $_php_class=null;
+
+ /**
+ * @param mixed $val
+ * @param string $type any valid xmlrpc type name (lowercase). If null, 'string' is assumed
+ */
+ function xmlrpcval($val=-1, $type='')
+ {
+ /// @todo: optimization creep - do not call addXX, do it all inline.
+ /// downside: booleans will not be coerced anymore
+ if($val!==-1 || $type!='')
+ {
+ // optimization creep: inlined all work done by constructor
+ switch($type)
+ {
+ case '':
+ $this->mytype=1;
+ $this->me['string']=$val;
+ break;
+ case 'i4':
+ case 'int':
+ case 'double':
+ case 'string':
+ case 'boolean':
+ case 'dateTime.iso8601':
+ case 'base64':
+ case 'null':
+ $this->mytype=1;
+ $this->me[$type]=$val;
+ break;
+ case 'array':
+ $this->mytype=2;
+ $this->me['array']=$val;
+ break;
+ case 'struct':
+ $this->mytype=3;
+ $this->me['struct']=$val;
+ break;
+ default:
+ error_log("XML-RPC: xmlrpcval::xmlrpcval: not a known type ($type)");
+ }
+ /*if($type=='')
+ {
+ $type='string';
+ }
+ if($GLOBALS['xmlrpcTypes'][$type]==1)
+ {
+ $this->addScalar($val,$type);
+ }
+ elseif($GLOBALS['xmlrpcTypes'][$type]==2)
+ {
+ $this->addArray($val);
+ }
+ elseif($GLOBALS['xmlrpcTypes'][$type]==3)
+ {
+ $this->addStruct($val);
+ }*/
+ }
+ }
+
+ /**
+ * Add a single php value to an (unitialized) xmlrpcval
+ * @param mixed $val
+ * @param string $type
+ * @return int 1 or 0 on failure
+ */
+ function addScalar($val, $type='string')
+ {
+ $typeof=@$GLOBALS['xmlrpcTypes'][$type];
+ if($typeof!=1)
+ {
+ error_log("XML-RPC: xmlrpcval::addScalar: not a scalar type ($type)");
+ return 0;
+ }
+
+ // coerce booleans into correct values
+ // NB: we should iether do it for datetimes, integers and doubles, too,
+ // or just plain remove this check, implemnted on booleans only...
+ if($type==$GLOBALS['xmlrpcBoolean'])
+ {
+ if(strcasecmp($val,'true')==0 || $val==1 || ($val==true && strcasecmp($val,'false')))
+ {
+ $val=true;
+ }
+ else
+ {
+ $val=false;
+ }
+ }
+
+ switch($this->mytype)
+ {
+ case 1:
+ error_log('XML-RPC: xmlrpcval::addScalar: scalar xmlrpcval can have only one value');
+ return 0;
+ case 3:
+ error_log('XML-RPC: xmlrpcval::addScalar: cannot add anonymous scalar to struct xmlrpcval');
+ return 0;
+ case 2:
+ // we're adding a scalar value to an array here
+ //$ar=$this->me['array'];
+ //$ar[]= new xmlrpcval($val, $type);
+ //$this->me['array']=$ar;
+ // Faster (?) avoid all the costly array-copy-by-val done here...
+ $this->me['array'][]= new xmlrpcval($val, $type);
+ return 1;
+ default:
+ // a scalar, so set the value and remember we're scalar
+ $this->me[$type]=$val;
+ $this->mytype=$typeof;
+ return 1;
+ }
+ }
+
+ /**
+ * Add an array of xmlrpcval objects to an xmlrpcval
+ * @param array $vals
+ * @return int 1 or 0 on failure
+ * @access public
+ *
+ * @todo add some checking for $vals to be an array of xmlrpcvals?
+ */
+ function addArray($vals)
+ {
+ if($this->mytype==0)
+ {
+ $this->mytype=$GLOBALS['xmlrpcTypes']['array'];
+ $this->me['array']=$vals;
+ return 1;
+ }
+ elseif($this->mytype==2)
+ {
+ // we're adding to an array here
+ $this->me['array'] = array_merge($this->me['array'], $vals);
+ return 1;
+ }
+ else
+ {
+ error_log('XML-RPC: xmlrpcval::addArray: already initialized as a [' . $this->kindOf() . ']');
+ return 0;
+ }
+ }
+
+ /**
+ * Add an array of named xmlrpcval objects to an xmlrpcval
+ * @param array $vals
+ * @return int 1 or 0 on failure
+ * @access public
+ *
+ * @todo add some checking for $vals to be an array?
+ */
+ function addStruct($vals)
+ {
+ if($this->mytype==0)
+ {
+ $this->mytype=$GLOBALS['xmlrpcTypes']['struct'];
+ $this->me['struct']=$vals;
+ return 1;
+ }
+ elseif($this->mytype==3)
+ {
+ // we're adding to a struct here
+ $this->me['struct'] = array_merge($this->me['struct'], $vals);
+ return 1;
+ }
+ else
+ {
+ error_log('XML-RPC: xmlrpcval::addStruct: already initialized as a [' . $this->kindOf() . ']');
+ return 0;
+ }
+ }
+
+ // poor man's version of print_r ???
+ // DEPRECATED!
+ function dump($ar)
+ {
+ foreach($ar as $key => $val)
+ {
+ echo "$key => $val
";
+ if($key == 'array')
+ {
+ while(list($key2, $val2) = each($val))
+ {
+ echo "-- $key2 => $val2
";
+ }
+ }
+ }
+ }
+
+ /**
+ * Returns a string containing "struct", "array" or "scalar" describing the base type of the value
+ * @return string
+ * @access public
+ */
+ function kindOf()
+ {
+ switch($this->mytype)
+ {
+ case 3:
+ return 'struct';
+ break;
+ case 2:
+ return 'array';
+ break;
+ case 1:
+ return 'scalar';
+ break;
+ default:
+ return 'undef';
+ }
+ }
+
+ /**
+ * @access private
+ */
+ function serializedata($typ, $val, $charset_encoding='')
+ {
+ $rs='';
+ switch(@$GLOBALS['xmlrpcTypes'][$typ])
+ {
+ case 1:
+ switch($typ)
+ {
+ case $GLOBALS['xmlrpcBase64']:
+ $rs.="<${typ}>" . base64_encode($val) . "";
+ break;
+ case $GLOBALS['xmlrpcBoolean']:
+ $rs.="<${typ}>" . ($val ? '1' : '0') . "";
+ break;
+ case $GLOBALS['xmlrpcString']:
+ // G. Giunta 2005/2/13: do NOT use htmlentities, since
+ // it will produce named html entities, which are invalid xml
+ $rs.="<${typ}>" . xmlrpc_encode_entitites($val, $GLOBALS['xmlrpc_internalencoding'], $charset_encoding). "";
+ break;
+ case $GLOBALS['xmlrpcInt']:
+ case $GLOBALS['xmlrpcI4']:
+ $rs.="<${typ}>".(int)$val."";
+ break;
+ case $GLOBALS['xmlrpcDouble']:
+ // avoid using standard conversion of float to string because it is locale-dependent,
+ // and also because the xmlrpc spec forbids exponential notation
+ // sprintf('%F') would be most likely ok but it is only available since PHP 4.3.10 and PHP 5.0.3.
+ // The code below tries its best at keeping max precision while avoiding exp notation,
+ // but there is of course no limit in the number of decimal places to be used...
+ $rs.="<${typ}>".preg_replace('/\\.?0+$/','',number_format((double)$val, 128, '.', ''))."";
+ break;
+ case $GLOBALS['xmlrpcNull']:
+ $rs.="";
+ break;
+ default:
+ // no standard type value should arrive here, but provide a possibility
+ // for xmlrpcvals of unknown type...
+ $rs.="<${typ}>${val}";
+ }
+ break;
+ case 3:
+ // struct
+ if ($this->_php_class)
+ {
+ $rs.='\n";
+ }
+ else
+ {
+ $rs.="\n";
+ }
+ foreach($val as $key2 => $val2)
+ {
+ $rs.=''.xmlrpc_encode_entitites($key2, $GLOBALS['xmlrpc_internalencoding'], $charset_encoding)."\n";
+ //$rs.=$this->serializeval($val2);
+ $rs.=$val2->serialize($charset_encoding);
+ $rs.="\n";
+ }
+ $rs.='';
+ break;
+ case 2:
+ // array
+ $rs.="\n\n";
+ for($i=0; $iserializeval($val[$i]);
+ $rs.=$val[$i]->serialize($charset_encoding);
+ }
+ $rs.="\n";
+ break;
+ default:
+ break;
+ }
+ return $rs;
+ }
+
+ /**
+ * Returns xml representation of the value. XML prologue not included
+ * @param string $charset_encoding the charset to be used for serialization. if null, US-ASCII is assumed
+ * @return string
+ * @access public
+ */
+ function serialize($charset_encoding='')
+ {
+ // add check? slower, but helps to avoid recursion in serializing broken xmlrpcvals...
+ //if (is_object($o) && (get_class($o) == 'xmlrpcval' || is_subclass_of($o, 'xmlrpcval')))
+ //{
+ reset($this->me);
+ list($typ, $val) = each($this->me);
+ return '' . $this->serializedata($typ, $val, $charset_encoding) . "\n";
+ //}
+ }
+
+ // DEPRECATED
+ function serializeval($o)
+ {
+ // add check? slower, but helps to avoid recursion in serializing broken xmlrpcvals...
+ //if (is_object($o) && (get_class($o) == 'xmlrpcval' || is_subclass_of($o, 'xmlrpcval')))
+ //{
+ $ar=$o->me;
+ reset($ar);
+ list($typ, $val) = each($ar);
+ return '' . $this->serializedata($typ, $val) . "\n";
+ //}
+ }
+
+ /**
+ * Checks wheter a struct member with a given name is present.
+ * Works only on xmlrpcvals of type struct.
+ * @param string $m the name of the struct member to be looked up
+ * @return boolean
+ * @access public
+ */
+ function structmemexists($m)
+ {
+ return array_key_exists($m, $this->me['struct']);
+ }
+
+ /**
+ * Returns the value of a given struct member (an xmlrpcval object in itself).
+ * Will raise a php warning if struct member of given name does not exist
+ * @param string $m the name of the struct member to be looked up
+ * @return xmlrpcval
+ * @access public
+ */
+ function structmem($m)
+ {
+ return $this->me['struct'][$m];
+ }
+
+ /**
+ * Reset internal pointer for xmlrpcvals of type struct.
+ * @access public
+ */
+ function structreset()
+ {
+ reset($this->me['struct']);
+ }
+
+ /**
+ * Return next member element for xmlrpcvals of type struct.
+ * @return xmlrpcval
+ * @access public
+ */
+ function structeach()
+ {
+ return each($this->me['struct']);
+ }
+
+ // DEPRECATED! this code looks like it is very fragile and has not been fixed
+ // for a long long time. Shall we remove it for 2.0?
+ function getval()
+ {
+ // UNSTABLE
+ reset($this->me);
+ list($a,$b)=each($this->me);
+ // contributed by I Sofer, 2001-03-24
+ // add support for nested arrays to scalarval
+ // i've created a new method here, so as to
+ // preserve back compatibility
+
+ if(is_array($b))
+ {
+ @reset($b);
+ while(list($id,$cont) = @each($b))
+ {
+ $b[$id] = $cont->scalarval();
+ }
+ }
+
+ // add support for structures directly encoding php objects
+ if(is_object($b))
+ {
+ $t = get_object_vars($b);
+ @reset($t);
+ while(list($id,$cont) = @each($t))
+ {
+ $t[$id] = $cont->scalarval();
+ }
+ @reset($t);
+ while(list($id,$cont) = @each($t))
+ {
+ @$b->$id = $cont;
+ }
+ }
+ // end contrib
+ return $b;
+ }
+
+ /**
+ * Returns the value of a scalar xmlrpcval
+ * @return mixed
+ * @access public
+ */
+ function scalarval()
+ {
+ reset($this->me);
+ list(,$b)=each($this->me);
+ return $b;
+ }
+
+ /**
+ * Returns the type of the xmlrpcval.
+ * For integers, 'int' is always returned in place of 'i4'
+ * @return string
+ * @access public
+ */
+ function scalartyp()
+ {
+ reset($this->me);
+ list($a,)=each($this->me);
+ if($a==$GLOBALS['xmlrpcI4'])
+ {
+ $a=$GLOBALS['xmlrpcInt'];
+ }
+ return $a;
+ }
+
+ /**
+ * Returns the m-th member of an xmlrpcval of struct type
+ * @param integer $m the index of the value to be retrieved (zero based)
+ * @return xmlrpcval
+ * @access public
+ */
+ function arraymem($m)
+ {
+ return $this->me['array'][$m];
+ }
+
+ /**
+ * Returns the number of members in an xmlrpcval of array type
+ * @return integer
+ * @access public
+ */
+ function arraysize()
+ {
+ return count($this->me['array']);
+ }
+
+ /**
+ * Returns the number of members in an xmlrpcval of struct type
+ * @return integer
+ * @access public
+ */
+ function structsize()
+ {
+ return count($this->me['struct']);
+ }
+ }
+
+
+ // date helpers
+
+ /**
+ * Given a timestamp, return the corresponding ISO8601 encoded string.
+ *
+ * Really, timezones ought to be supported
+ * but the XML-RPC spec says:
+ *
+ * "Don't assume a timezone. It should be specified by the server in its
+ * documentation what assumptions it makes about timezones."
+ *
+ * These routines always assume localtime unless
+ * $utc is set to 1, in which case UTC is assumed
+ * and an adjustment for locale is made when encoding
+ *
+ * @param int $timet (timestamp)
+ * @param int $utc (0 or 1)
+ * @return string
+ */
+ function iso8601_encode($timet, $utc=0)
+ {
+ if(!$utc)
+ {
+ $t=strftime("%Y%m%dT%H:%M:%S", $timet);
+ }
+ else
+ {
+ if(function_exists('gmstrftime'))
+ {
+ // gmstrftime doesn't exist in some versions
+ // of PHP
+ $t=gmstrftime("%Y%m%dT%H:%M:%S", $timet);
+ }
+ else
+ {
+ $t=strftime("%Y%m%dT%H:%M:%S", $timet-date('Z'));
+ }
+ }
+ return $t;
+ }
+
+ /**
+ * Given an ISO8601 date string, return a timet in the localtime, or UTC
+ * @param string $idate
+ * @param int $utc either 0 or 1
+ * @return int (datetime)
+ */
+ function iso8601_decode($idate, $utc=0)
+ {
+ $t=0;
+ if(preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})/', $idate, $regs))
+ {
+ if($utc)
+ {
+ $t=gmmktime($regs[4], $regs[5], $regs[6], $regs[2], $regs[3], $regs[1]);
+ }
+ else
+ {
+ $t=mktime($regs[4], $regs[5], $regs[6], $regs[2], $regs[3], $regs[1]);
+ }
+ }
+ return $t;
+ }
+
+ /**
+ * Takes an xmlrpc value in PHP xmlrpcval object format and translates it into native PHP types.
+ *
+ * Works with xmlrpc message objects as input, too.
+ *
+ * Given proper options parameter, can rebuild generic php object instances
+ * (provided those have been encoded to xmlrpc format using a corresponding
+ * option in php_xmlrpc_encode())
+ * PLEASE NOTE that rebuilding php objects involves calling their constructor function.
+ * This means that the remote communication end can decide which php code will
+ * get executed on your server, leaving the door possibly open to 'php-injection'
+ * style of attacks (provided you have some classes defined on your server that
+ * might wreak havoc if instances are built outside an appropriate context).
+ * Make sure you trust the remote server/client before eanbling this!
+ *
+ * @author Dan Libby (dan@libby.com)
+ *
+ * @param xmlrpcval $xmlrpc_val
+ * @param array $options if 'decode_php_objs' is set in the options array, xmlrpc structs can be decoded into php objects
+ * @return mixed
+ */
+ function php_xmlrpc_decode($xmlrpc_val, $options=array())
+ {
+ switch($xmlrpc_val->kindOf())
+ {
+ case 'scalar':
+ if (in_array('extension_api', $options))
+ {
+ reset($xmlrpc_val->me);
+ list($typ,$val) = each($xmlrpc_val->me);
+ switch ($typ)
+ {
+ case 'dateTime.iso8601':
+ $xmlrpc_val->scalar = $val;
+ $xmlrpc_val->xmlrpc_type = 'datetime';
+ $xmlrpc_val->timestamp = iso8601_decode($val);
+ return $xmlrpc_val;
+ case 'base64':
+ $xmlrpc_val->scalar = $val;
+ $xmlrpc_val->type = $typ;
+ return $xmlrpc_val;
+ default:
+ return $xmlrpc_val->scalarval();
+ }
+ }
+ return $xmlrpc_val->scalarval();
+ case 'array':
+ $size = $xmlrpc_val->arraysize();
+ $arr = array();
+ for($i = 0; $i < $size; $i++)
+ {
+ $arr[] = php_xmlrpc_decode($xmlrpc_val->arraymem($i), $options);
+ }
+ return $arr;
+ case 'struct':
+ $xmlrpc_val->structreset();
+ // If user said so, try to rebuild php objects for specific struct vals.
+ /// @todo should we raise a warning for class not found?
+ // shall we check for proper subclass of xmlrpcval instead of
+ // presence of _php_class to detect what we can do?
+ if (in_array('decode_php_objs', $options) && $xmlrpc_val->_php_class != ''
+ && class_exists($xmlrpc_val->_php_class))
+ {
+ $obj = @new $xmlrpc_val->_php_class;
+ while(list($key,$value)=$xmlrpc_val->structeach())
+ {
+ $obj->$key = php_xmlrpc_decode($value, $options);
+ }
+ return $obj;
+ }
+ else
+ {
+ $arr = array();
+ while(list($key,$value)=$xmlrpc_val->structeach())
+ {
+ $arr[$key] = php_xmlrpc_decode($value, $options);
+ }
+ return $arr;
+ }
+ case 'msg':
+ $paramcount = $xmlrpc_val->getNumParams();
+ $arr = array();
+ for($i = 0; $i < $paramcount; $i++)
+ {
+ $arr[] = php_xmlrpc_decode($xmlrpc_val->getParam($i));
+ }
+ return $arr;
+ }
+ }
+
+ // This constant left here only for historical reasons...
+ // it was used to decide if we have to define xmlrpc_encode on our own, but
+ // we do not do it anymore
+ if(function_exists('xmlrpc_decode'))
+ {
+ define('XMLRPC_EPI_ENABLED','1');
+ }
+ else
+ {
+ define('XMLRPC_EPI_ENABLED','0');
+ }
+
+ /**
+ * Takes native php types and encodes them into xmlrpc PHP object format.
+ * It will not re-encode xmlrpcval objects.
+ *
+ * Feature creep -- could support more types via optional type argument
+ * (string => datetime support has been added, ??? => base64 not yet)
+ *
+ * If given a proper options parameter, php object instances will be encoded
+ * into 'special' xmlrpc values, that can later be decoded into php objects
+ * by calling php_xmlrpc_decode() with a corresponding option
+ *
+ * @author Dan Libby (dan@libby.com)
+ *
+ * @param mixed $php_val the value to be converted into an xmlrpcval object
+ * @param array $options can include 'encode_php_objs', 'auto_dates', 'null_extension' or 'extension_api'
+ * @return xmlrpcval
+ */
+ function &php_xmlrpc_encode($php_val, $options=array())
+ {
+ $type = gettype($php_val);
+ switch($type)
+ {
+ case 'string':
+ if (in_array('auto_dates', $options) && preg_match('/^[0-9]{8}T[0-9]{2}:[0-9]{2}:[0-9]{2}$/', $php_val))
+ $xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcDateTime']);
+ else
+ $xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcString']);
+ break;
+ case 'integer':
+ $xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcInt']);
+ break;
+ case 'double':
+ $xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcDouble']);
+ break;
+ //
+ // Add support for encoding/decoding of booleans, since they are supported in PHP
+ case 'boolean':
+ $xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcBoolean']);
+ break;
+ //
+ case 'array':
+ // PHP arrays can be encoded to either xmlrpc structs or arrays,
+ // depending on wheter they are hashes or plain 0..n integer indexed
+ // A shorter one-liner would be
+ // $tmp = array_diff(array_keys($php_val), range(0, count($php_val)-1));
+ // but execution time skyrockets!
+ $j = 0;
+ $arr = array();
+ $ko = false;
+ foreach($php_val as $key => $val)
+ {
+ $arr[$key] =& php_xmlrpc_encode($val, $options);
+ if(!$ko && $key !== $j)
+ {
+ $ko = true;
+ }
+ $j++;
+ }
+ if($ko)
+ {
+ $xmlrpc_val = new xmlrpcval($arr, $GLOBALS['xmlrpcStruct']);
+ }
+ else
+ {
+ $xmlrpc_val = new xmlrpcval($arr, $GLOBALS['xmlrpcArray']);
+ }
+ break;
+ case 'object':
+ if(is_a($php_val, 'xmlrpcval'))
+ {
+ $xmlrpc_val = $php_val;
+ }
+ else
+ {
+ $arr = array();
+ while(list($k,$v) = each($php_val))
+ {
+ $arr[$k] = php_xmlrpc_encode($v, $options);
+ }
+ $xmlrpc_val = new xmlrpcval($arr, $GLOBALS['xmlrpcStruct']);
+ if (in_array('encode_php_objs', $options))
+ {
+ // let's save original class name into xmlrpcval:
+ // might be useful later on...
+ $xmlrpc_val->_php_class = get_class($php_val);
+ }
+ }
+ break;
+ case 'NULL':
+ if (in_array('extension_api', $options))
+ {
+ $xmlrpc_val = new xmlrpcval('', $GLOBALS['xmlrpcString']);
+ }
+ if (in_array('null_extension', $options))
+ {
+ $xmlrpc_val = new xmlrpcval('', $GLOBALS['xmlrpcNull']);
+ }
+ else
+ {
+ $xmlrpc_val = new xmlrpcval();
+ }
+ break;
+ case 'resource':
+ if (in_array('extension_api', $options))
+ {
+ $xmlrpc_val = new xmlrpcval((int)$php_val, $GLOBALS['xmlrpcInt']);
+ }
+ else
+ {
+ $xmlrpc_val = new xmlrpcval();
+ }
+ // catch "user function", "unknown type"
+ default:
+ // giancarlo pinerolo
+ // it has to return
+ // an empty object in case, not a boolean.
+ $xmlrpc_val = new xmlrpcval();
+ break;
+ }
+ return $xmlrpc_val;
+ }
+
+ /**
+ * Convert the xml representation of a method response, method request or single
+ * xmlrpc value into the appropriate object (a.k.a. deserialize)
+ * @param string $xml_val
+ * @param array $options
+ * @return mixed false on error, or an instance of either xmlrpcval, xmlrpcmsg or xmlrpcresp
+ */
+ function php_xmlrpc_decode_xml($xml_val, $options=array())
+ {
+ $GLOBALS['_xh'] = array();
+ $GLOBALS['_xh']['ac'] = '';
+ $GLOBALS['_xh']['stack'] = array();
+ $GLOBALS['_xh']['valuestack'] = array();
+ $GLOBALS['_xh']['params'] = array();
+ $GLOBALS['_xh']['pt'] = array();
+ $GLOBALS['_xh']['isf'] = 0;
+ $GLOBALS['_xh']['isf_reason'] = '';
+ $GLOBALS['_xh']['method'] = false;
+ $GLOBALS['_xh']['rt'] = '';
+ /// @todo 'guestimate' encoding
+ $parser = xml_parser_create();
+ xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
+ // What if internal encoding is not in one of the 3 allowed?
+ // we use the broadest one, ie. utf8!
+ if (!in_array($GLOBALS['xmlrpc_internalencoding'], array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
+ {
+ xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, 'UTF-8');
+ }
+ else
+ {
+ xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, $GLOBALS['xmlrpc_internalencoding']);
+ }
+ xml_set_element_handler($parser, 'xmlrpc_se_any', 'xmlrpc_ee');
+ xml_set_character_data_handler($parser, 'xmlrpc_cd');
+ xml_set_default_handler($parser, 'xmlrpc_dh');
+ if(!xml_parse($parser, $xml_val, 1))
+ {
+ $errstr = sprintf('XML error: %s at line %d, column %d',
+ xml_error_string(xml_get_error_code($parser)),
+ xml_get_current_line_number($parser), xml_get_current_column_number($parser));
+ error_log($errstr);
+ xml_parser_free($parser);
+ return false;
+ }
+ xml_parser_free($parser);
+ if ($GLOBALS['_xh']['isf'] > 1) // test that $GLOBALS['_xh']['value'] is an obj, too???
+ {
+ error_log($GLOBALS['_xh']['isf_reason']);
+ return false;
+ }
+ switch ($GLOBALS['_xh']['rt'])
+ {
+ case 'methodresponse':
+ $v =& $GLOBALS['_xh']['value'];
+ if ($GLOBALS['_xh']['isf'] == 1)
+ {
+ $vc = $v->structmem('faultCode');
+ $vs = $v->structmem('faultString');
+ $r = new xmlrpcresp(0, $vc->scalarval(), $vs->scalarval());
+ }
+ else
+ {
+ $r = new xmlrpcresp($v);
+ }
+ return $r;
+ case 'methodcall':
+ $m = new xmlrpcmsg($GLOBALS['_xh']['method']);
+ for($i=0; $i < count($GLOBALS['_xh']['params']); $i++)
+ {
+ $m->addParam($GLOBALS['_xh']['params'][$i]);
+ }
+ return $m;
+ case 'value':
+ return $GLOBALS['_xh']['value'];
+ default:
+ return false;
+ }
+ }
+
+ /**
+ * decode a string that is encoded w/ "chunked" transfer encoding
+ * as defined in rfc2068 par. 19.4.6
+ * code shamelessly stolen from nusoap library by Dietrich Ayala
+ *
+ * @param string $buffer the string to be decoded
+ * @return string
+ */
+ function decode_chunked($buffer)
+ {
+ // length := 0
+ $length = 0;
+ $new = '';
+
+ // read chunk-size, chunk-extension (if any) and crlf
+ // get the position of the linebreak
+ $chunkend = strpos($buffer,"\r\n") + 2;
+ $temp = substr($buffer,0,$chunkend);
+ $chunk_size = hexdec( trim($temp) );
+ $chunkstart = $chunkend;
+ while($chunk_size > 0)
+ {
+ $chunkend = strpos($buffer, "\r\n", $chunkstart + $chunk_size);
+
+ // just in case we got a broken connection
+ if($chunkend == false)
+ {
+ $chunk = substr($buffer,$chunkstart);
+ // append chunk-data to entity-body
+ $new .= $chunk;
+ $length += strlen($chunk);
+ break;
+ }
+
+ // read chunk-data and crlf
+ $chunk = substr($buffer,$chunkstart,$chunkend-$chunkstart);
+ // append chunk-data to entity-body
+ $new .= $chunk;
+ // length := length + chunk-size
+ $length += strlen($chunk);
+ // read chunk-size and crlf
+ $chunkstart = $chunkend + 2;
+
+ $chunkend = strpos($buffer,"\r\n",$chunkstart)+2;
+ if($chunkend == false)
+ {
+ break; //just in case we got a broken connection
+ }
+ $temp = substr($buffer,$chunkstart,$chunkend-$chunkstart);
+ $chunk_size = hexdec( trim($temp) );
+ $chunkstart = $chunkend;
+ }
+ return $new;
+ }
+
+ /**
+ * xml charset encoding guessing helper function.
+ * Tries to determine the charset encoding of an XML chunk received over HTTP.
+ * NB: according to the spec (RFC 3023), if text/xml content-type is received over HTTP without a content-type,
+ * we SHOULD assume it is strictly US-ASCII. But we try to be more tolerant of unconforming (legacy?) clients/servers,
+ * which will be most probably using UTF-8 anyway...
+ *
+ * @param string $httpheaders the http Content-type header
+ * @param string $xmlchunk xml content buffer
+ * @param string $encoding_prefs comma separated list of character encodings to be used as default (when mb extension is enabled)
+ *
+ * @todo explore usage of mb_http_input(): does it detect http headers + post data? if so, use it instead of hand-detection!!!
+ */
+ function guess_encoding($httpheader='', $xmlchunk='', $encoding_prefs=null)
+ {
+ // discussion: see http://www.yale.edu/pclt/encoding/
+ // 1 - test if encoding is specified in HTTP HEADERS
+
+ //Details:
+ // LWS: (\13\10)?( |\t)+
+ // token: (any char but excluded stuff)+
+ // quoted string: " (any char but double quotes and cointrol chars)* "
+ // header: Content-type = ...; charset=value(; ...)*
+ // where value is of type token, no LWS allowed between 'charset' and value
+ // Note: we do not check for invalid chars in VALUE:
+ // this had better be done using pure ereg as below
+ // Note 2: we might be removing whitespace/tabs that ought to be left in if
+ // the received charset is a quoted string. But nobody uses such charset names...
+
+ /// @todo this test will pass if ANY header has charset specification, not only Content-Type. Fix it?
+ $matches = array();
+ if(preg_match('/;\s*charset\s*=([^;]+)/i', $httpheader, $matches))
+ {
+ return strtoupper(trim($matches[1], " \t\""));
+ }
+
+ // 2 - scan the first bytes of the data for a UTF-16 (or other) BOM pattern
+ // (source: http://www.w3.org/TR/2000/REC-xml-20001006)
+ // NOTE: actually, according to the spec, even if we find the BOM and determine
+ // an encoding, we should check if there is an encoding specified
+ // in the xml declaration, and verify if they match.
+ /// @todo implement check as described above?
+ /// @todo implement check for first bytes of string even without a BOM? (It sure looks harder than for cases WITH a BOM)
+ if(preg_match('/^(\x00\x00\xFE\xFF|\xFF\xFE\x00\x00|\x00\x00\xFF\xFE|\xFE\xFF\x00\x00)/', $xmlchunk))
+ {
+ return 'UCS-4';
+ }
+ elseif(preg_match('/^(\xFE\xFF|\xFF\xFE)/', $xmlchunk))
+ {
+ return 'UTF-16';
+ }
+ elseif(preg_match('/^(\xEF\xBB\xBF)/', $xmlchunk))
+ {
+ return 'UTF-8';
+ }
+
+ // 3 - test if encoding is specified in the xml declaration
+ // Details:
+ // SPACE: (#x20 | #x9 | #xD | #xA)+ === [ \x9\xD\xA]+
+ // EQ: SPACE?=SPACE? === [ \x9\xD\xA]*=[ \x9\xD\xA]*
+ if (preg_match('/^<\?xml\s+version\s*=\s*'. "((?:\"[a-zA-Z0-9_.:-]+\")|(?:'[a-zA-Z0-9_.:-]+'))".
+ '\s+encoding\s*=\s*' . "((?:\"[A-Za-z][A-Za-z0-9._-]*\")|(?:'[A-Za-z][A-Za-z0-9._-]*'))/",
+ $xmlchunk, $matches))
+ {
+ return strtoupper(substr($matches[2], 1, -1));
+ }
+
+ // 4 - if mbstring is available, let it do the guesswork
+ // NB: we favour finding an encoding that is compatible with what we can process
+ if(extension_loaded('mbstring'))
+ {
+ if($encoding_prefs)
+ {
+ $enc = mb_detect_encoding($xmlchunk, $encoding_prefs);
+ }
+ else
+ {
+ $enc = mb_detect_encoding($xmlchunk);
+ }
+ // NB: mb_detect likes to call it ascii, xml parser likes to call it US_ASCII...
+ // IANA also likes better US-ASCII, so go with it
+ if($enc == 'ASCII')
+ {
+ $enc = 'US-'.$enc;
+ }
+ return $enc;
+ }
+ else
+ {
+ // no encoding specified: as per HTTP1.1 assume it is iso-8859-1?
+ // Both RFC 2616 (HTTP 1.1) and 1945 (HTTP 1.0) clearly state that for text/xxx content types
+ // this should be the standard. And we should be getting text/xml as request and response.
+ // BUT we have to be backward compatible with the lib, which always used UTF-8 as default...
+ return $GLOBALS['xmlrpc_defencoding'];
+ }
+ }
+
+ /**
+ * Checks if a given charset encoding is present in a list of encodings or
+ * if it is a valid subset of any encoding in the list
+ * @param string $encoding charset to be tested
+ * @param mixed $validlist comma separated list of valid charsets (or array of charsets)
+ */
+ function is_valid_charset($encoding, $validlist)
+ {
+ $charset_supersets = array(
+ 'US-ASCII' => array ('ISO-8859-1', 'ISO-8859-2', 'ISO-8859-3', 'ISO-8859-4',
+ 'ISO-8859-5', 'ISO-8859-6', 'ISO-8859-7', 'ISO-8859-8',
+ 'ISO-8859-9', 'ISO-8859-10', 'ISO-8859-11', 'ISO-8859-12',
+ 'ISO-8859-13', 'ISO-8859-14', 'ISO-8859-15', 'UTF-8',
+ 'EUC-JP', 'EUC-', 'EUC-KR', 'EUC-CN')
+ );
+ if (is_string($validlist))
+ $validlist = explode(',', $validlist);
+ if (@in_array(strtoupper($encoding), $validlist))
+ return true;
+ else
+ {
+ if (array_key_exists($encoding, $charset_supersets))
+ foreach ($validlist as $allowed)
+ if (in_array($allowed, $charset_supersets[$encoding]))
+ return true;
+ return false;
+ }
+ }
+
+?>
\ No newline at end of file
--
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