Fixed SOAP Fault errors not being raised as errors

lib/client.js

@@ -16,7 +16,8 @@ var HttpClient = require('./http'),
   events = require('events'),
   util = require('util'),
   debug = require('debug')('node-soap'),
-  url = require('url');
+  url = require('url'),
+  _ = require('lodash');
 
 var Client = function(wsdl, endpoint, options) {
   events.EventEmitter.call(this);
@@ -215,6 +216,15 @@ Client.prototype._invoke = function(method, args, location, callback, options, e
   self.emit('message', message);
   self.emit('request', xml);
 
+  var tryJSONparse = function(body) {
+    try {
+      return JSON.parse(body);
+    }
+    catch(err) {
+      return undefined;
+    }
+  };
+
   req = self.httpClient.request(location, xml, function(err, response, body) {
     var result;
     var obj;
@@ -225,14 +235,19 @@ Client.prototype._invoke = function(method, args, location, callback, options, e
     if (err) {
       callback(err);
     } else {
+
       try {
         obj = self.wsdl.xmlToObject(body);
       } catch (error) {
-        //When the output element cannot be looked up in the wsdl,
-        //Then instead of sending the error, We pass the body in the response.
+        //  When the output element cannot be looked up in the wsdl and the body is JSON
+        //  instead of sending the error, we pass the body in the response.
         if(!output.$lookupTypes) {
           debug('Response element is not present. Unable to convert response xml to json.');
-          return callback(null,response,body);
+          //  If the response is JSON then return it as-is.
+          var json = _.isObject(body) ? body : tryJSONparse(body);
+          if (json) {
+            return callback(null, response, json);
+          }
         }
         error.response = response;
         error.body = body;

lib/wsdl.js

@@ -17,6 +17,7 @@ var assert = require('assert').ok;
 var stripBom = require('strip-bom');
 var debug = require('debug')('node-soap');
 var _ = require('lodash');
+var selectn = require('selectn');
 
 var Primitives = {
   string: 1,
@@ -1393,7 +1394,10 @@ WSDL.prototype.xmlToObject = function(xml) {
   if (root.Envelope) {
     var body = root.Envelope.Body;
     if (body.Fault) {
-      var error = new Error(body.Fault.faultcode + ': ' + body.Fault.faultstring + (body.Fault.detail ? ': ' + body.Fault.detail : ''));
+      var code = selectn('faultcode.$value', body.Fault);
+      var string = selectn('faultstring.$value', body.Fault);
+      var detail = selectn('detail.$value', body.Fault);
+      var error = new Error(code + ': ' + string + (detail ? ': ' + detail : ''));
       error.root = root;
       throw error;
     }

package.json

@@ -7,11 +7,12 @@
   },
   "author": "Vinay Pulim <v@pulim.com>",
   "dependencies": {
+    "debug": "~0.7.4",
     "lodash": "~2.4.1",
     "request": ">=2.9.0",
     "sax": ">=0.6",
-    "strip-bom": "~0.3.1",
-    "debug": "~0.7.4"
+    "selectn": "^0.9.6",
+    "strip-bom": "~0.3.1"
   },
   "repository": {
     "type": "git",

test/client-test.js

@@ -516,4 +516,34 @@ describe('SOAP Client', function() {
     });
 
   });
+
+  it('should return error in the call when Fault was returned', function(done) {
+    var server = null;
+    var hostname = '127.0.0.1';
+    var port = 15099;
+    var baseUrl = 'http://' + hostname + ':' + port;
+
+    server = http.createServer(function (req, res) {
+      res.statusCode = 200;
+      res.write("<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?><SOAP-ENV:Envelope SOAP-ENV:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\"\n  xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\"\n  xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"\n  xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n  xmlns:SOAP-ENC=\"http://schemas.xmlsoap.org/soap/encoding/\">\n<SOAP-ENV:Body><SOAP-ENV:Fault><faultcode xsi:type=\"xsd:string\">Test</faultcode><faultactor xsi:type=\"xsd:string\"></faultactor><faultstring xsi:type=\"xsd:string\">test error</faultstring><detail xsi:type=\"xsd:string\">test detail</detail></SOAP-ENV:Fault></SOAP-ENV:Body></SOAP-ENV:Envelope>");
+      res.end();
+    }).listen(port, hostname, function() {
+      soap.createClient(__dirname+'/wsdl/json_response.wsdl', function(err, client) {
+        assert.ok(client);
+        assert.ok(!err);
+
+        client.MyOperation({}, function(err, result, body) {
+          server.close();
+          server = null;
+          assert.ok(err);
+          assert.strictEqual(err.message, 'Test: test error: test detail');
+          assert.ok(result);
+          assert.ok(body);
+          done();
+        });
+      }, baseUrl);
+    });
+
+  });
+
 });