Changeset - ac4daf775230
[Not reviewed]
stable
0 1 0
Mads Kiilerich - 10 years ago 2016-04-03 22:45:38
madski@unity3d.com
api: avoid sending double Content-Length header (Issue #201)

WSGI will take of Content-Length - handling it explicitly was misguided.
1 file changed with 1 insertions and 3 deletions:
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kallithea/controllers/api/__init__.py
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@@ -99,49 +99,48 @@ class JSONRPCController(WSGIController):
 
    def __call__(self, environ, start_response):
 
        """
 
        Parse the request body as JSON, look up the method on the
 
        controller and if it exists, dispatch to it.
 
        """
 
        try:
 
            return self._handle_request(environ, start_response)
 
        finally:
 
            meta.Session.remove()
 

	
 
    def _handle_request(self, environ, start_response):
 
        start = time.time()
 
        ip_addr = self.ip_addr = self._get_ip_addr(environ)
 
        self._req_id = None
 
        if 'CONTENT_LENGTH' not in environ:
 
            log.debug("No Content-Length")
 
            return jsonrpc_error(retid=self._req_id,
 
                                 message="No Content-Length in request")
 
        else:
 
            length = environ['CONTENT_LENGTH'] or 0
 
            length = int(environ['CONTENT_LENGTH'])
 
            log.debug('Content-Length: %s', length)
 

	
 
        if length == 0:
 
            log.debug("Content-Length is 0")
 
            return jsonrpc_error(retid=self._req_id,
 
                                 message="Content-Length is 0")
 

	
 
        raw_body = environ['wsgi.input'].read(length)
 

	
 
        try:
 
            json_body = json.loads(raw_body)
 
        except ValueError as e:
 
            # catch JSON errors Here
 
            return jsonrpc_error(retid=self._req_id,
 
                                 message="JSON parse error ERR:%s RAW:%r"
 
                                 % (e, raw_body))
 

	
 
        # check AUTH based on API key
 
        try:
 
            self._req_api_key = json_body['api_key']
 
            self._req_id = json_body['id']
 
            self._req_method = json_body['method']
 
            self._request_params = json_body['args']
 
            if not isinstance(self._request_params, dict):
 
                self._request_params = {}
 

	
 
            log.debug(
 
                'method: %s, params: %s', self._req_method,
 
@@ -218,50 +217,49 @@ class JSONRPCController(WSGIController):
 
                    retid=self._req_id,
 
                    message=(
 
                        'Missing non optional `%s` arg in JSON DATA' % arg
 
                    )
 
                )
 

	
 
        self._rpc_args = {USER_SESSION_ATTR: u}
 

	
 
        self._rpc_args.update(self._request_params)
 

	
 
        self._rpc_args['action'] = self._req_method
 
        self._rpc_args['environ'] = environ
 
        self._rpc_args['start_response'] = start_response
 

	
 
        status = []
 
        headers = []
 
        exc_info = []
 

	
 
        def change_content(new_status, new_headers, new_exc_info=None):
 
            status.append(new_status)
 
            headers.extend(new_headers)
 
            exc_info.append(new_exc_info)
 

	
 
        output = WSGIController.__call__(self, environ, change_content)
 
        output = list(output)
 
        headers.append(('Content-Length', str(len(output[0]))))
 
        output = list(output) # expand iterator - just to ensure exact timing
 
        replace_header(headers, 'Content-Type', 'application/json')
 
        start_response(status[0], headers, exc_info[0])
 
        log.info('IP: %s Request to %s time: %.3fs' % (
 
            self._get_ip_addr(environ),
 
            safe_unicode(_get_access_path(environ)), time.time() - start)
 
        )
 
        return output
 

	
 
    def _dispatch_call(self):
 
        """
 
        Implement dispatch interface specified by WSGIController
 
        """
 
        raw_response = ''
 
        try:
 
            raw_response = self._inspect_call(self._func)
 
            if isinstance(raw_response, HTTPError):
 
                self._error = str(raw_response)
 
        except JSONRPCError as e:
 
            self._error = safe_str(e)
 
        except Exception as e:
 
            log.error('Encountered unhandled exception: %s',
 
                      traceback.format_exc(),)
 
            json_exc = JSONRPCError('Internal server error')
 
            self._error = safe_str(json_exc)
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