Krishna Srinivas
9 years ago
committed by
Harshavardhana
parent
f98675660b
commit
6ad39cb386
@ -1,58 +0,0 @@ |
||||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Copyright 2012 The Gorilla Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
/* |
||||
Package gorilla/rpc/json provides a codec for JSON-RPC over HTTP services. |
||||
|
||||
To register the codec in a RPC server: |
||||
|
||||
import ( |
||||
"http" |
||||
"github.com/gorilla/rpc/v2" |
||||
"github.com/gorilla/rpc/v2/json" |
||||
) |
||||
|
||||
func init() { |
||||
s := rpc.NewServer() |
||||
s.RegisterCodec(json.NewCodec(), "application/json") |
||||
// [...]
|
||||
http.Handle("/rpc", s) |
||||
} |
||||
|
||||
A codec is tied to a content type. In the example above, the server will use |
||||
the JSON codec for requests with "application/json" as the value for the |
||||
"Content-Type" header. |
||||
|
||||
This package follows the JSON-RPC 1.0 specification: |
||||
|
||||
http://json-rpc.org/wiki/specification
|
||||
|
||||
Request format is: |
||||
|
||||
method: |
||||
The name of the method to be invoked, as a string in dotted notation |
||||
as in "Service.Method". |
||||
params: |
||||
An array with a single object to pass as argument to the method. |
||||
id: |
||||
The request id, a uint. It is used to match the response with the |
||||
request that it is replying to. |
||||
|
||||
Response format is: |
||||
|
||||
result: |
||||
The Object that was returned by the invoked method, |
||||
or null in case there was an error invoking the method. |
||||
error: |
||||
An Error object if there was an error invoking the method, |
||||
or null if there was no error. |
||||
id: |
||||
The same id as the request it is responding to. |
||||
|
||||
Check the gorilla/rpc documentation for more details: |
||||
|
||||
http://gorilla-web.appspot.com/pkg/rpc
|
||||
*/ |
||||
package json |
||||
@ -1,132 +0,0 @@ |
||||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Copyright 2012 The Gorilla Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package json |
||||
|
||||
import ( |
||||
"bytes" |
||||
"encoding/json" |
||||
"errors" |
||||
"net/http" |
||||
"net/http/httptest" |
||||
"reflect" |
||||
"testing" |
||||
|
||||
"github.com/gorilla/rpc/v2" |
||||
) |
||||
|
||||
var ( |
||||
ErrResponseError = errors.New("response error") |
||||
ErrResponseJsonError = &Error{Data: map[string]interface{}{ |
||||
"stackstrace": map[string]interface{}{"0": "foo()"}, |
||||
"error": "a message", |
||||
}} |
||||
) |
||||
|
||||
type Service1Request struct { |
||||
A int |
||||
B int |
||||
} |
||||
|
||||
type Service1Response struct { |
||||
Result int |
||||
} |
||||
|
||||
type Service1 struct { |
||||
} |
||||
|
||||
func (t *Service1) Multiply(r *http.Request, req *Service1Request, res *Service1Response) error { |
||||
res.Result = req.A * req.B |
||||
return nil |
||||
} |
||||
|
||||
func (t *Service1) ResponseError(r *http.Request, req *Service1Request, res *Service1Response) error { |
||||
return ErrResponseError |
||||
} |
||||
|
||||
func (t *Service1) ResponseJsonError(r *http.Request, req *Service1Request, res *Service1Response) error { |
||||
return ErrResponseJsonError |
||||
} |
||||
|
||||
func execute(t *testing.T, s *rpc.Server, method string, req, res interface{}) error { |
||||
if !s.HasMethod(method) { |
||||
t.Fatal("Expected to be registered:", method) |
||||
} |
||||
|
||||
buf, _ := EncodeClientRequest(method, req) |
||||
body := bytes.NewBuffer(buf) |
||||
r, _ := http.NewRequest("POST", "http://localhost:8080/", body) |
||||
r.Header.Set("Content-Type", "application/json") |
||||
|
||||
w := httptest.NewRecorder() |
||||
s.ServeHTTP(w, r) |
||||
|
||||
return DecodeClientResponse(w.Body, res) |
||||
} |
||||
|
||||
func executeRaw(t *testing.T, s *rpc.Server, req json.RawMessage) (int, *bytes.Buffer) { |
||||
r, _ := http.NewRequest("POST", "http://localhost:8080/", bytes.NewBuffer(req)) |
||||
r.Header.Set("Content-Type", "application/json") |
||||
|
||||
w := httptest.NewRecorder() |
||||
s.ServeHTTP(w, r) |
||||
|
||||
return w.Code, w.Body |
||||
} |
||||
|
||||
func field(name string, blob json.RawMessage) (v interface{}, ok bool) { |
||||
var obj map[string]interface{} |
||||
if err := json.Unmarshal(blob, &obj); err != nil { |
||||
return nil, false |
||||
} |
||||
v, ok = obj[name] |
||||
return |
||||
} |
||||
|
||||
func TestService(t *testing.T) { |
||||
s := rpc.NewServer() |
||||
s.RegisterCodec(NewCodec(), "application/json") |
||||
s.RegisterService(new(Service1), "") |
||||
|
||||
var res Service1Response |
||||
if err := execute(t, s, "Service1.Multiply", &Service1Request{4, 2}, &res); err != nil { |
||||
t.Error("Expected err to be nil, but got", err) |
||||
} |
||||
if res.Result != 8 { |
||||
t.Error("Expected res.Result to be 8, but got", res.Result) |
||||
} |
||||
if err := execute(t, s, "Service1.ResponseError", &Service1Request{4, 2}, &res); err == nil { |
||||
t.Errorf("Expected to get %q, but got nil", ErrResponseError) |
||||
} else if err.Error() != ErrResponseError.Error() { |
||||
t.Errorf("Expected to get %q, but got %q", ErrResponseError, err) |
||||
} |
||||
if code, res := executeRaw(t, s, json.RawMessage(`{"method":"Service1.Multiply","params":null,"id":5}`)); code != 400 { |
||||
t.Error("Expected response code to be 400, but got", code) |
||||
} else if v, ok := field("result", res.Bytes()); !ok || v != nil { |
||||
t.Errorf("Expected ok to be true and v to be nil, but got %v and %v", ok, v) |
||||
} |
||||
if err := execute(t, s, "Service1.ResponseJsonError", &Service1Request{4, 2}, &res); err == nil { |
||||
t.Errorf("Expected to get %q, but got nil", ErrResponseError) |
||||
} else if jsonErr, ok := err.(*Error); !ok { |
||||
t.Error("Expected err to be of a *json.Error type") |
||||
} else if !reflect.DeepEqual(jsonErr.Data, ErrResponseJsonError.Data) { |
||||
t.Errorf("Expected jsonErr to be %q, but got %q", ErrResponseJsonError, jsonErr) |
||||
} |
||||
} |
||||
|
||||
func TestClientNullResult(t *testing.T) { |
||||
data := `{"jsonrpc": "2.0", "id": 8674665223082153551, "result": null}` |
||||
reader := bytes.NewReader([]byte(data)) |
||||
|
||||
var reply interface{} |
||||
|
||||
err := DecodeClientResponse(reader, &reply) |
||||
if err == nil { |
||||
t.Fatal(err) |
||||
} |
||||
if err.Error() != "Unexpected null result" { |
||||
t.Fatalf("Unexpected error: %s", err) |
||||
} |
||||
} |
||||
@ -0,0 +1,39 @@ |
||||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Copyright 2012 The Gorilla Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package json2 |
||||
|
||||
import ( |
||||
"errors" |
||||
) |
||||
|
||||
type ErrorCode int |
||||
|
||||
const ( |
||||
E_PARSE ErrorCode = -32700 |
||||
E_INVALID_REQ ErrorCode = -32600 |
||||
E_NO_METHOD ErrorCode = -32601 |
||||
E_BAD_PARAMS ErrorCode = -32602 |
||||
E_INTERNAL ErrorCode = -32603 |
||||
E_SERVER ErrorCode = -32000 |
||||
) |
||||
|
||||
var ErrNullResult = errors.New("result is null") |
||||
|
||||
type Error struct { |
||||
// A Number that indicates the error type that occurred.
|
||||
Code ErrorCode `json:"code"` /* required */ |
||||
|
||||
// A String providing a short description of the error.
|
||||
// The message SHOULD be limited to a concise single sentence.
|
||||
Message string `json:"message"` /* required */ |
||||
|
||||
// A Primitive or Structured value that contains additional information about the error.
|
||||
Data interface{} `json:"data"` /* optional */ |
||||
} |
||||
|
||||
func (e *Error) Error() string { |
||||
return e.Message |
||||
} |
||||
@ -0,0 +1,161 @@ |
||||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Copyright 2012 The Gorilla Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package json2 |
||||
|
||||
import ( |
||||
"bytes" |
||||
"encoding/json" |
||||
"errors" |
||||
"net/http" |
||||
"testing" |
||||
|
||||
"github.com/gorilla/rpc/v2" |
||||
) |
||||
|
||||
// ResponseRecorder is an implementation of http.ResponseWriter that
|
||||
// records its mutations for later inspection in tests.
|
||||
type ResponseRecorder struct { |
||||
Code int // the HTTP response code from WriteHeader
|
||||
HeaderMap http.Header // the HTTP response headers
|
||||
Body *bytes.Buffer // if non-nil, the bytes.Buffer to append written data to
|
||||
Flushed bool |
||||
} |
||||
|
||||
// NewRecorder returns an initialized ResponseRecorder.
|
||||
func NewRecorder() *ResponseRecorder { |
||||
return &ResponseRecorder{ |
||||
HeaderMap: make(http.Header), |
||||
Body: new(bytes.Buffer), |
||||
} |
||||
} |
||||
|
||||
// DefaultRemoteAddr is the default remote address to return in RemoteAddr if
|
||||
// an explicit DefaultRemoteAddr isn't set on ResponseRecorder.
|
||||
const DefaultRemoteAddr = "1.2.3.4" |
||||
|
||||
// Header returns the response headers.
|
||||
func (rw *ResponseRecorder) Header() http.Header { |
||||
return rw.HeaderMap |
||||
} |
||||
|
||||
// Write always succeeds and writes to rw.Body, if not nil.
|
||||
func (rw *ResponseRecorder) Write(buf []byte) (int, error) { |
||||
if rw.Body != nil { |
||||
rw.Body.Write(buf) |
||||
} |
||||
if rw.Code == 0 { |
||||
rw.Code = http.StatusOK |
||||
} |
||||
return len(buf), nil |
||||
} |
||||
|
||||
// WriteHeader sets rw.Code.
|
||||
func (rw *ResponseRecorder) WriteHeader(code int) { |
||||
rw.Code = code |
||||
} |
||||
|
||||
// Flush sets rw.Flushed to true.
|
||||
func (rw *ResponseRecorder) Flush() { |
||||
rw.Flushed = true |
||||
} |
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
|
||||
var ErrResponseError = errors.New("response error") |
||||
|
||||
type Service1Request struct { |
||||
A int |
||||
B int |
||||
} |
||||
|
||||
type Service1BadRequest struct { |
||||
V string `json:"jsonrpc"` |
||||
M string `json:"method"` |
||||
ID uint64 `json:"id"` |
||||
} |
||||
|
||||
type Service1Response struct { |
||||
Result int |
||||
} |
||||
|
||||
type Service1 struct { |
||||
} |
||||
|
||||
func (t *Service1) Multiply(r *http.Request, req *Service1Request, res *Service1Response) error { |
||||
res.Result = req.A * req.B |
||||
return nil |
||||
} |
||||
|
||||
func (t *Service1) ResponseError(r *http.Request, req *Service1Request, res *Service1Response) error { |
||||
return ErrResponseError |
||||
} |
||||
|
||||
func execute(t *testing.T, s *rpc.Server, method string, req, res interface{}) error { |
||||
if !s.HasMethod(method) { |
||||
t.Fatal("Expected to be registered:", method) |
||||
} |
||||
|
||||
buf, _ := EncodeClientRequest(method, req) |
||||
body := bytes.NewBuffer(buf) |
||||
r, _ := http.NewRequest("POST", "http://localhost:8080/", body) |
||||
r.Header.Set("Content-Type", "application/json") |
||||
|
||||
w := NewRecorder() |
||||
s.ServeHTTP(w, r) |
||||
|
||||
return DecodeClientResponse(w.Body, res) |
||||
} |
||||
|
||||
func executeRaw(t *testing.T, s *rpc.Server, req interface{}, res interface{}) error { |
||||
j, _ := json.Marshal(req) |
||||
r, _ := http.NewRequest("POST", "http://localhost:8080/", bytes.NewBuffer(j)) |
||||
r.Header.Set("Content-Type", "application/json") |
||||
|
||||
w := NewRecorder() |
||||
s.ServeHTTP(w, r) |
||||
|
||||
return DecodeClientResponse(w.Body, res) |
||||
} |
||||
|
||||
func TestService(t *testing.T) { |
||||
s := rpc.NewServer() |
||||
s.RegisterCodec(NewCodec(), "application/json") |
||||
s.RegisterService(new(Service1), "") |
||||
|
||||
var res Service1Response |
||||
if err := execute(t, s, "Service1.Multiply", &Service1Request{4, 2}, &res); err != nil { |
||||
t.Error("Expected err to be nil, but got:", err) |
||||
} |
||||
if res.Result != 8 { |
||||
t.Errorf("Wrong response: %v.", res.Result) |
||||
} |
||||
|
||||
if err := execute(t, s, "Service1.ResponseError", &Service1Request{4, 2}, &res); err == nil { |
||||
t.Errorf("Expected to get %q, but got nil", ErrResponseError) |
||||
} else if err.Error() != ErrResponseError.Error() { |
||||
t.Errorf("Expected to get %q, but got %q", ErrResponseError, err) |
||||
} |
||||
|
||||
if err := executeRaw(t, s, &Service1BadRequest{"2.0", "Service1.Multiply", 1}, &res); err == nil { |
||||
t.Errorf("Expected error but error in nil") |
||||
} |
||||
} |
||||
|
||||
func TestDecodeNullResult(t *testing.T) { |
||||
data := `{"jsonrpc": "2.0", "id": 12345, "result": null}` |
||||
reader := bytes.NewReader([]byte(data)) |
||||
var result interface{} |
||||
|
||||
err := DecodeClientResponse(reader, &result) |
||||
|
||||
if err != ErrNullResult { |
||||
t.Error("Expected err no be ErrNullResult, but got:", err) |
||||
} |
||||
|
||||
if result != nil { |
||||
t.Error("Expected result to be nil, but got:", result) |
||||
} |
||||
} |
||||
Loading…
Reference in new issue