fix verify function with non-native charsets

lib/read.js

@@ -8,6 +8,7 @@
  */
 
 var getBody = require('raw-body')
+var iconv = require('iconv-lite')
 var typer = require('media-typer')
 var zlib = require('zlib')
 
@@ -90,7 +91,7 @@ function read(req, res, next, parse, options) {
     // parse
     try {
       str = typeof body !== 'string'
-        ? body.toString(encoding)
+        ? iconv.decode(body, encoding)
         : body
       req.body = parse(str)
     } catch (err){

package.json

@@ -11,6 +11,7 @@
   "dependencies": {
     "bytes": "1.0.0",
     "depd": "0.3.0",
+    "iconv-lite": "0.4.3",
     "media-typer": "0.2.0",
     "qs": "0.6.6",
     "raw-body": "1.2.1",

test/json.js

@@ -283,6 +283,18 @@ describe('bodyParser.json()', function(){
       .send('{"user":"tobi"}')
       .expect(200, '{"user":"tobi"}', done)
     })
+
+    it('should work with different charsets', function(done){
+      var server = createServer({verify: function(req, res, buf){
+        if (buf[0] === 0x5b) throw new Error('no arrays')
+      }})
+
+      var test = request(server).post('/')
+      test.set('Content-Type', 'application/json; charset=utf-16')
+      test.write(new Buffer('feff007b0022006e0061006d00650022003a00228bba0022007d', 'hex'))
+      test.expect(200, '{"name":"论"}', done)
+    })
+
   })
 
   describe('charset', function(){