Increase backwards compatibility with version 3: make ALL global vars available which...
[plcapi.git] / src / Helper / XMLParser.php
index 6803ebf..e11d233 100644 (file)
@@ -6,7 +6,7 @@ use PhpXmlRpc\PhpXmlRpc;
 use PhpXmlRpc\Value;
 
 /**
- * Deals with parsing the XML
+ * Deals with parsing the XML.
  */
 class XMLParser
 {
@@ -18,8 +18,8 @@ class XMLParser
     //   valuestack - array used for parsing arrays and structs
     //   lv - used to indicate "looking for a value": implements
     //        the logic to allow values with no types to be strings
-    //   isf - used to indicate a parsing fault (2) or xmlrpcresp fault (1)
-    //   isf_reason - used for storing xmlrpcresp fault string
+    //   isf - used to indicate a parsing fault (2) or xmlrpc response fault (1)
+    //   isf_reason - used for storing xmlrpc response fault string
     //   method - used to store method name
     //   params - used to store parameters in method calls
     //   pt - used to store the type of each received parameter. Useful if parameters are automatically decoded to php values
@@ -33,7 +33,7 @@ class XMLParser
         'method' => false, // so we can check later if we got a methodname or not
         'params' => array(),
         'pt' => array(),
-        'rt' => ''
+        'rt' => '',
     );
 
     public $xmlrpc_valid_parents = array(
@@ -55,56 +55,50 @@ class XMLParser
         'PARAMS' => array('METHODCALL', 'METHODRESPONSE'),
         'FAULT' => array('METHODRESPONSE'),
         'NIL' => array('VALUE'), // only used when extension activated
-        'EX:NIL' => array('VALUE') // only used when extension activated
+        'EX:NIL' => array('VALUE'), // only used when extension activated
     );
 
     /**
-     * xml parser handler function for opening element tags
+     * xml parser handler function for opening element tags.
      */
-    function xmlrpc_se($parser, $name, $attrs, $accept_single_vals=false)
+    public function xmlrpc_se($parser, $name, $attrs, $acceptSingleVals = false)
     {
         // if invalid xmlrpc already detected, skip all processing
-        if ($this->_xh['isf'] < 2)
-        {
+        if ($this->_xh['isf'] < 2) {
             // check for correct element nesting
             // top level element can only be of 2 types
             /// @todo optimization creep: save this check into a bool variable, instead of using count() every time:
             ///       there is only a single top level element in xml anyway
-            if (count($this->_xh['stack']) == 0)
-            {
+            if (count($this->_xh['stack']) == 0) {
                 if ($name != 'METHODRESPONSE' && $name != 'METHODCALL' && (
-                        $name != 'VALUE' && !$accept_single_vals))
-                {
+                        $name != 'VALUE' && !$acceptSingleVals)
+                {
                     $this->_xh['isf'] = 2;
                     $this->_xh['isf_reason'] = 'missing top level xmlrpc element';
+
                     return;
-                }
-                else
-                {
+                } else {
                     $this->_xh['rt'] = strtolower($name);
                 }
-            }
-            else
-            {
+            } else {
                 // not top level element: see if parent is OK
                 $parent = end($this->_xh['stack']);
-                if (!array_key_exists($name, $this->xmlrpc_valid_parents) || !in_array($parent, $this->xmlrpc_valid_parents[$name]))
-                {
+                if (!array_key_exists($name, $this->xmlrpc_valid_parents) || !in_array($parent, $this->xmlrpc_valid_parents[$name])) {
                     $this->_xh['isf'] = 2;
                     $this->_xh['isf_reason'] = "xmlrpc element $name cannot be child of $parent";
+
                     return;
                 }
             }
 
-            switch($name)
-            {
+            switch ($name) {
                 // optimize for speed switch cases: most common cases first
                 case 'VALUE':
                     /// @todo we could check for 2 VALUE elements inside a MEMBER or PARAM element
-                    $this->_xh['vt']='value'; // indicator: no value found yet
-                    $this->_xh['ac']='';
-                    $this->_xh['lv']=1;
-                    $this->_xh['php_class']=null;
+                    $this->_xh['vt'] = 'value'; // indicator: no value found yet
+                    $this->_xh['ac'] = '';
+                    $this->_xh['lv'] = 1;
+                    $this->_xh['php_class'] = null;
                     break;
                 case 'I4':
                 case 'INT':
@@ -113,43 +107,42 @@ class XMLParser
                 case 'DOUBLE':
                 case 'DATETIME.ISO8601':
                 case 'BASE64':
-                    if ($this->_xh['vt']!='value')
-                    {
+                    if ($this->_xh['vt'] != 'value') {
                         //two data elements inside a value: an error occurred!
                         $this->_xh['isf'] = 2;
                         $this->_xh['isf_reason'] = "$name element following a {$this->_xh['vt']} element inside a single value";
+
                         return;
                     }
-                    $this->_xh['ac']=''; // reset the accumulator
+                    $this->_xh['ac'] = ''; // reset the accumulator
                     break;
                 case 'STRUCT':
                 case 'ARRAY':
-                    if ($this->_xh['vt']!='value')
-                    {
+                    if ($this->_xh['vt'] != 'value') {
                         //two data elements inside a value: an error occurred!
                         $this->_xh['isf'] = 2;
                         $this->_xh['isf_reason'] = "$name element following a {$this->_xh['vt']} element inside a single value";
+
                         return;
                     }
                     // create an empty array to hold child values, and push it onto appropriate stack
-                    $cur_val = array();
-                    $cur_val['values'] = array();
-                    $cur_val['type'] = $name;
+                    $curVal = array();
+                    $curVal['values'] = array();
+                    $curVal['type'] = $name;
                     // check for out-of-band information to rebuild php objs
                     // and in case it is found, save it
-                    if (@isset($attrs['PHP_CLASS']))
-                    {
-                        $cur_val['php_class'] = $attrs['PHP_CLASS'];
+                    if (@isset($attrs['PHP_CLASS'])) {
+                        $curVal['php_class'] = $attrs['PHP_CLASS'];
                     }
-                    $this->_xh['valuestack'][] = $cur_val;
-                    $this->_xh['vt']='data'; // be prepared for a data element next
+                    $this->_xh['valuestack'][] = $curVal;
+                    $this->_xh['vt'] = 'data'; // be prepared for a data element next
                     break;
                 case 'DATA':
-                    if ($this->_xh['vt']!='data')
-                    {
+                    if ($this->_xh['vt'] != 'data') {
                         //two data elements inside a value: an error occurred!
                         $this->_xh['isf'] = 2;
                         $this->_xh['isf_reason'] = "found two data elements inside an array element";
+
                         return;
                     }
                 case 'METHODCALL':
@@ -160,31 +153,30 @@ class XMLParser
                 case 'METHODNAME':
                 case 'NAME':
                     /// @todo we could check for 2 NAME elements inside a MEMBER element
-                    $this->_xh['ac']='';
+                    $this->_xh['ac'] = '';
                     break;
                 case 'FAULT':
-                    $this->_xh['isf']=1;
+                    $this->_xh['isf'] = 1;
                     break;
                 case 'MEMBER':
-                    $this->_xh['valuestack'][count($this->_xh['valuestack'])-1]['name']=''; // set member name to null, in case we do not find in the xml later on
+                    $this->_xh['valuestack'][count($this->_xh['valuestack']) - 1]['name'] = ''; // set member name to null, in case we do not find in the xml later on
                     //$this->_xh['ac']='';
                 // Drop trough intentionally
                 case 'PARAM':
                     // clear value type, so we can check later if no value has been passed for this param/member
-                    $this->_xh['vt']=null;
+                    $this->_xh['vt'] = null;
                     break;
                 case 'NIL':
                 case 'EX:NIL':
-                    if (PhpXmlRpc::$xmlrpc_null_extension)
-                    {
-                        if ($this->_xh['vt']!='value')
-                        {
+                    if (PhpXmlRpc::$xmlrpc_null_extension) {
+                        if ($this->_xh['vt'] != 'value') {
                             //two data elements inside a value: an error occurred!
                             $this->_xh['isf'] = 2;
                             $this->_xh['isf_reason'] = "$name element following a {$this->_xh['vt']} element inside a single value";
+
                             return;
                         }
-                        $this->_xh['ac']=''; // reset the accumulator
+                        $this->_xh['ac'] = ''; // reset the accumulator
                         break;
                     }
                 // we do not support the <NIL/> extension, so
@@ -200,79 +192,68 @@ class XMLParser
             $this->_xh['stack'][] = $name;
 
             /// @todo optimization creep: move this inside the big switch() above
-            if($name!='VALUE')
-            {
-                $this->_xh['lv']=0;
+            if ($name != 'VALUE') {
+                $this->_xh['lv'] = 0;
             }
         }
     }
 
     /**
-     * Used in decoding xml chunks that might represent single xmlrpc values
+     * Used in decoding xml chunks that might represent single xmlrpc values.
      */
-    function xmlrpc_se_any($parser, $name, $attrs)
+    public function xmlrpc_se_any($parser, $name, $attrs)
     {
         $this->xmlrpc_se($parser, $name, $attrs, true);
     }
 
     /**
-     * xml parser handler function for close element tags
+     * xml parser handler function for close element tags.
      */
-    function xmlrpc_ee($parser, $name, $rebuild_xmlrpcvals = true)
+    public function xmlrpc_ee($parser, $name, $rebuildXmlrpcvals = true)
     {
-        if ($this->_xh['isf'] < 2)
-        {
+        if ($this->_xh['isf'] < 2) {
             // push this element name from stack
             // NB: if XML validates, correct opening/closing is guaranteed and
-            // we do not have to check for $name == $curr_elem.
+            // we do not have to check for $name == $currElem.
             // we also checked for proper nesting at start of elements...
-            $curr_elem = array_pop($this->_xh['stack']);
+            $currElem = array_pop($this->_xh['stack']);
 
-            switch($name)
-            {
+            switch ($name) {
                 case 'VALUE':
                     // This if() detects if no scalar was inside <VALUE></VALUE>
-                    if ($this->_xh['vt']=='value')
-                    {
-                        $this->_xh['value']=$this->_xh['ac'];
-                        $this->_xh['vt']=Value::$xmlrpcString;
+                    if ($this->_xh['vt'] == 'value') {
+                        $this->_xh['value'] = $this->_xh['ac'];
+                        $this->_xh['vt'] = Value::$xmlrpcString;
                     }
 
-                    if ($rebuild_xmlrpcvals)
-                    {
+                    if ($rebuildXmlrpcvals) {
                         // build the xmlrpc val out of the data received, and substitute it
                         $temp = new Value($this->_xh['value'], $this->_xh['vt']);
                         // in case we got info about underlying php class, save it
                         // in the object we're rebuilding
-                        if (isset($this->_xh['php_class']))
+                        if (isset($this->_xh['php_class'])) {
                             $temp->_php_class = $this->_xh['php_class'];
+                        }
                         // check if we are inside an array or struct:
                         // if value just built is inside an array, let's move it into array on the stack
                         $vscount = count($this->_xh['valuestack']);
-                        if ($vscount && $this->_xh['valuestack'][$vscount-1]['type']=='ARRAY')
-                        {
-                            $this->_xh['valuestack'][$vscount-1]['values'][] = $temp;
-                        }
-                        else
-                        {
+                        if ($vscount && $this->_xh['valuestack'][$vscount - 1]['type'] == 'ARRAY') {
+                            $this->_xh['valuestack'][$vscount - 1]['values'][] = $temp;
+                        } else {
                             $this->_xh['value'] = $temp;
                         }
-                    }
-                    else
-                    {
+                    } else {
                         /// @todo this needs to treat correctly php-serialized objects,
                         /// since std deserializing is done by php_xmlrpc_decode,
                         /// which we will not be calling...
-                        if (isset($this->_xh['php_class']))
-                        {
+                        if (isset($this->_xh['php_class'])) {
                         }
 
                         // check if we are inside an array or struct:
                         // if value just built is inside an array, let's move it into array on the stack
                         $vscount = count($this->_xh['valuestack']);
-                        if ($vscount && $this->_xh['valuestack'][$vscount-1]['type']=='ARRAY')
-                        {
-                            $this->_xh['valuestack'][$vscount-1]['values'][] = $this->_xh['value'];
+                        if ($vscount && $this->_xh['valuestack'][$vscount - 1]['type'] == 'ARRAY') {
+                            $this->_xh['valuestack'][$vscount - 1]['values'][] = $this->_xh['value'];
                         }
                     }
                     break;
@@ -283,133 +264,110 @@ class XMLParser
                 case 'DOUBLE':
                 case 'DATETIME.ISO8601':
                 case 'BASE64':
-                    $this->_xh['vt']=strtolower($name);
+                    $this->_xh['vt'] = strtolower($name);
                     /// @todo: optimization creep - remove the if/elseif cycle below
                     /// since the case() in which we are already did that
-                    if ($name=='STRING')
-                    {
-                        $this->_xh['value']=$this->_xh['ac'];
-                    }
-                    elseif ($name=='DATETIME.ISO8601')
-                    {
-                        if (!preg_match('/^[0-9]{8}T[0-9]{2}:[0-9]{2}:[0-9]{2}$/', $this->_xh['ac']))
-                        {
-                            error_log('XML-RPC: invalid value received in DATETIME: '.$this->_xh['ac']);
+                    if ($name == 'STRING') {
+                        $this->_xh['value'] = $this->_xh['ac'];
+                    } elseif ($name == 'DATETIME.ISO8601') {
+                        if (!preg_match('/^[0-9]{8}T[0-9]{2}:[0-9]{2}:[0-9]{2}$/', $this->_xh['ac'])) {
+                            error_log('XML-RPC: invalid value received in DATETIME: ' . $this->_xh['ac']);
                         }
-                        $this->_xh['vt']=Value::$xmlrpcDateTime;
-                        $this->_xh['value']=$this->_xh['ac'];
-                    }
-                    elseif ($name=='BASE64')
-                    {
+                        $this->_xh['vt'] = Value::$xmlrpcDateTime;
+                        $this->_xh['value'] = $this->_xh['ac'];
+                    } elseif ($name == 'BASE64') {
                         /// @todo check for failure of base64 decoding / catch warnings
-                        $this->_xh['value']=base64_decode($this->_xh['ac']);
-                    }
-                    elseif ($name=='BOOLEAN')
-                    {
+                        $this->_xh['value'] = base64_decode($this->_xh['ac']);
+                    } elseif ($name == 'BOOLEAN') {
                         // special case here: we translate boolean 1 or 0 into PHP
                         // constants true or false.
                         // Strings 'true' and 'false' are accepted, even though the
                         // spec never mentions them (see eg. Blogger api docs)
                         // NB: this simple checks helps a lot sanitizing input, ie no
                         // security problems around here
-                        if ($this->_xh['ac']=='1' || strcasecmp($this->_xh['ac'], 'true') == 0)
-                        {
-                            $this->_xh['value']=true;
-                        }
-                        else
-                        {
+                        if ($this->_xh['ac'] == '1' || strcasecmp($this->_xh['ac'], 'true') == 0) {
+                            $this->_xh['value'] = true;
+                        } else {
                             // log if receiving something strange, even though we set the value to false anyway
-                            if ($this->_xh['ac']!='0' && strcasecmp($this->_xh['ac'], 'false') != 0)
-                                error_log('XML-RPC: invalid value received in BOOLEAN: '.$this->_xh['ac']);
-                            $this->_xh['value']=false;
+                            if ($this->_xh['ac'] != '0' && strcasecmp($this->_xh['ac'], 'false') != 0) {
+                                error_log('XML-RPC: invalid value received in BOOLEAN: ' . $this->_xh['ac']);
+                            }
+                            $this->_xh['value'] = false;
                         }
-                    }
-                    elseif ($name=='DOUBLE')
-                    {
+                    } elseif ($name == 'DOUBLE') {
                         // we have a DOUBLE
                         // we must check that only 0123456789-.<space> are characters here
                         // NOTE: regexp could be much stricter than this...
-                        if (!preg_match('/^[+-eE0123456789 \t.]+$/', $this->_xh['ac']))
-                        {
+                        if (!preg_match('/^[+-eE0123456789 \t.]+$/', $this->_xh['ac'])) {
                             /// @todo: find a better way of throwing an error than this!
-                            error_log('XML-RPC: non numeric value received in DOUBLE: '.$this->_xh['ac']);
-                            $this->_xh['value']='ERROR_NON_NUMERIC_FOUND';
-                        }
-                        else
-                        {
+                            error_log('XML-RPC: non numeric value received in DOUBLE: ' . $this->_xh['ac']);
+                            $this->_xh['value'] = 'ERROR_NON_NUMERIC_FOUND';
+                        } else {
                             // it's ok, add it on
-                            $this->_xh['value']=(double)$this->_xh['ac'];
+                            $this->_xh['value'] = (double)$this->_xh['ac'];
                         }
-                    }
-                    else
-                    {
+                    } else {
                         // we have an I4/INT
                         // we must check that only 0123456789-<space> are characters here
-                        if (!preg_match('/^[+-]?[0123456789 \t]+$/', $this->_xh['ac']))
-                        {
+                        if (!preg_match('/^[+-]?[0123456789 \t]+$/', $this->_xh['ac'])) {
                             /// @todo find a better way of throwing an error than this!
-                            error_log('XML-RPC: non numeric value received in INT: '.$this->_xh['ac']);
-                            $this->_xh['value']='ERROR_NON_NUMERIC_FOUND';
-                        }
-                        else
-                        {
+                            error_log('XML-RPC: non numeric value received in INT: ' . $this->_xh['ac']);
+                            $this->_xh['value'] = 'ERROR_NON_NUMERIC_FOUND';
+                        } else {
                             // it's ok, add it on
-                            $this->_xh['value']=(int)$this->_xh['ac'];
+                            $this->_xh['value'] = (int)$this->_xh['ac'];
                         }
                     }
                     //$this->_xh['ac']=''; // is this necessary?
-                    $this->_xh['lv']=3; // indicate we've found a value
+                    $this->_xh['lv'] = 3; // indicate we've found a value
                     break;
                 case 'NAME':
-                    $this->_xh['valuestack'][count($this->_xh['valuestack'])-1]['name'] = $this->_xh['ac'];
+                    $this->_xh['valuestack'][count($this->_xh['valuestack']) - 1]['name'] = $this->_xh['ac'];
                     break;
                 case 'MEMBER':
                     //$this->_xh['ac']=''; // is this necessary?
                     // add to array in the stack the last element built,
                     // unless no VALUE was found
-                    if ($this->_xh['vt'])
-                    {
+                    if ($this->_xh['vt']) {
                         $vscount = count($this->_xh['valuestack']);
-                        $this->_xh['valuestack'][$vscount-1]['values'][$this->_xh['valuestack'][$vscount-1]['name']] = $this->_xh['value'];
-                    } else
+                        $this->_xh['valuestack'][$vscount - 1]['values'][$this->_xh['valuestack'][$vscount - 1]['name']] = $this->_xh['value'];
+                    } else {
                         error_log('XML-RPC: missing VALUE inside STRUCT in received xml');
+                    }
                     break;
                 case 'DATA':
                     //$this->_xh['ac']=''; // is this necessary?
-                    $this->_xh['vt']=null; // reset this to check for 2 data elements in a row - even if they're empty
+                    $this->_xh['vt'] = null; // reset this to check for 2 data elements in a row - even if they're empty
                     break;
                 case 'STRUCT':
                 case 'ARRAY':
                     // fetch out of stack array of values, and promote it to current value
-                    $curr_val = array_pop($this->_xh['valuestack']);
-                    $this->_xh['value'] = $curr_val['values'];
-                    $this->_xh['vt']=strtolower($name);
-                    if (isset($curr_val['php_class']))
-                    {
-                        $this->_xh['php_class'] = $curr_val['php_class'];
+                    $currVal = array_pop($this->_xh['valuestack']);
+                    $this->_xh['value'] = $currVal['values'];
+                    $this->_xh['vt'] = strtolower($name);
+                    if (isset($currVal['php_class'])) {
+                        $this->_xh['php_class'] = $currVal['php_class'];
                     }
                     break;
                 case 'PARAM':
                     // add to array of params the current value,
                     // unless no VALUE was found
-                    if ($this->_xh['vt'])
-                    {
-                        $this->_xh['params'][]=$this->_xh['value'];
-                        $this->_xh['pt'][]=$this->_xh['vt'];
-                    }
-                    else
+                    if ($this->_xh['vt']) {
+                        $this->_xh['params'][] = $this->_xh['value'];
+                        $this->_xh['pt'][] = $this->_xh['vt'];
+                    } else {
                         error_log('XML-RPC: missing VALUE inside PARAM in received xml');
+                    }
                     break;
                 case 'METHODNAME':
-                    $this->_xh['method']=preg_replace('/^[\n\r\t ]+/', '', $this->_xh['ac']);
+                    $this->_xh['method'] = preg_replace('/^[\n\r\t ]+/', '', $this->_xh['ac']);
                     break;
                 case 'NIL':
                 case 'EX:NIL':
-                    if (PhpXmlRpc::$xmlrpc_null_extension)
-                    {
-                        $this->_xh['vt']='null';
-                        $this->_xh['value']=null;
-                        $this->_xh['lv']=3;
+                    if (PhpXmlRpc::$xmlrpc_null_extension) {
+                        $this->_xh['vt'] = 'null';
+                        $this->_xh['value'] = null;
+                        $this->_xh['lv'] = 3;
                         break;
                     }
                 // drop through intentionally if nil extension not enabled
@@ -427,25 +385,23 @@ class XMLParser
     }
 
     /**
-     * Used in decoding xmlrpc requests/responses without rebuilding xmlrpc Values
+     * Used in decoding xmlrpc requests/responses without rebuilding xmlrpc Values.
      */
-    function xmlrpc_ee_fast($parser, $name)
+    public function xmlrpc_ee_fast($parser, $name)
     {
         $this->xmlrpc_ee($parser, $name, false);
     }
 
     /**
-     * xml parser handler function for character data
+     * xml parser handler function for character data.
      */
-    function xmlrpc_cd($parser, $data)
+    public function xmlrpc_cd($parser, $data)
     {
         // skip processing if xml fault already detected
-        if ($this->_xh['isf'] < 2)
-        {
+        if ($this->_xh['isf'] < 2) {
             // "lookforvalue==3" means that we've found an entire value
             // and should discard any further character data
-            if($this->_xh['lv']!=3)
-            {
+            if ($this->_xh['lv'] != 3) {
                 // G. Giunta 2006-08-23: useless change of 'lv' from 1 to 2
                 //if($this->_xh['lv']==1)
                 //{
@@ -458,7 +414,7 @@ class XMLParser
                 //{
                 //    $this->_xh['ac'] = '';
                 //}
-                $this->_xh['ac'].=$data;
+                $this->_xh['ac'] .= $data;
             }
         }
     }
@@ -467,22 +423,21 @@ class XMLParser
      * xml parser handler function for 'other stuff', ie. not char data or
      * element start/end tag. In fact it only gets called on unknown entities...
      */
-    function xmlrpc_dh($parser, $data)
+    public function xmlrpc_dh($parser, $data)
     {
         // skip processing if xml fault already detected
-        if ($this->_xh['isf'] < 2)
-        {
-            if(substr($data, 0, 1) == '&' && substr($data, -1, 1) == ';')
-            {
+        if ($this->_xh['isf'] < 2) {
+            if (substr($data, 0, 1) == '&' && substr($data, -1, 1) == ';') {
                 // G. Giunta 2006-08-25: useless change of 'lv' from 1 to 2
                 //if($this->_xh['lv']==1)
                 //{
                 //    $this->_xh['lv']=2;
                 //}
-                $this->_xh['ac'].=$data;
+                $this->_xh['ac'] .= $data;
             }
         }
+
         return true;
     }
 
-}
\ No newline at end of file
+}