diff options
author | 2018-10-07 18:42:43 -0700 | |
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committer | 2018-10-08 15:31:58 -0700 | |
commit | 1f58b37a5e86603b16e137031c36f37580e9d410 (patch) | |
tree | 337a7299e91fe7640b64489357dfe7c0f00e2313 /http/response/json | |
parent | ddfe969d6cbc8d23326cb9a3ca9a265d4e9d3e45 (diff) |
Refactor HTTP response builder
Diffstat (limited to 'http/response/json')
-rw-r--r-- | http/response/json/doc.go | 10 | ||||
-rw-r--r-- | http/response/json/json.go | 127 | ||||
-rw-r--r-- | http/response/json/json_test.go | 313 |
3 files changed, 389 insertions, 61 deletions
diff --git a/http/response/json/doc.go b/http/response/json/doc.go new file mode 100644 index 0000000..c2a74c1 --- /dev/null +++ b/http/response/json/doc.go @@ -0,0 +1,10 @@ +// Copyright 2018 Frédéric Guillot. All rights reserved. +// Use of this source code is governed by the MIT license +// that can be found in the LICENSE file. + +/* + +Package json contains JSON response functions. + +*/ +package json // import "miniflux.app/http/response/json" diff --git a/http/response/json/json.go b/http/response/json/json.go index f19efb0..680a20d 100644 --- a/http/response/json/json.go +++ b/http/response/json/json.go @@ -1,6 +1,6 @@ // Copyright 2018 Frédéric Guillot. All rights reserved. -// Use of this source code is governed by the Apache 2.0 -// license that can be found in the LICENSE file. +// Use of this source code is governed by the MIT license +// that can be found in the LICENSE file. package json // import "miniflux.app/http/response/json" @@ -13,93 +13,98 @@ import ( "miniflux.app/logger" ) -// OK sends a JSON response with the status code 200. -func OK(w http.ResponseWriter, r *http.Request, v interface{}) { - commonHeaders(w) - response.Compress(w, r, toJSON(v)) +// OK creates a new JSON response with a 200 status code. +func OK(w http.ResponseWriter, r *http.Request, body interface{}) { + builder := response.New(w, r) + builder.WithHeader("Content-Type", "application/json; charset=utf-8") + builder.WithBody(toJSON(body)) + builder.Write() } -// Created sends a JSON response with the status code 201. -func Created(w http.ResponseWriter, v interface{}) { - commonHeaders(w) - w.WriteHeader(http.StatusCreated) - w.Write(toJSON(v)) +// Created sends a created response to the client. +func Created(w http.ResponseWriter, r *http.Request, body interface{}) { + builder := response.New(w, r) + builder.WithStatus(http.StatusCreated) + builder.WithHeader("Content-Type", "application/json; charset=utf-8") + builder.WithBody(toJSON(body)) + builder.Write() } -// NoContent sends a JSON response with the status code 204. -func NoContent(w http.ResponseWriter) { - commonHeaders(w) - w.WriteHeader(http.StatusNoContent) +// NoContent sends a no content response to the client. +func NoContent(w http.ResponseWriter, r *http.Request) { + builder := response.New(w, r) + builder.WithStatus(http.StatusNoContent) + builder.WithHeader("Content-Type", "application/json; charset=utf-8") + builder.Write() } -// NotFound sends a JSON response with the status code 404. -func NotFound(w http.ResponseWriter, err error) { - logger.Error("[Not Found] %v", err) - commonHeaders(w) - w.WriteHeader(http.StatusNotFound) - w.Write(encodeError(err)) +// ServerError sends an internal error to the client. +func ServerError(w http.ResponseWriter, r *http.Request, err error) { + logger.Error("[HTTP:Internal Server Error] %s => %v", r.URL, err) + + builder := response.New(w, r) + builder.WithStatus(http.StatusInternalServerError) + builder.WithHeader("Content-Type", "application/json; charset=utf-8") + builder.WithBody(toJSONError(err)) + builder.Write() } -// ServerError sends a JSON response with the status code 500. -func ServerError(w http.ResponseWriter, err error) { - logger.Error("[Internal Server Error] %v", err) - commonHeaders(w) - w.WriteHeader(http.StatusInternalServerError) +// BadRequest sends a bad request error to the client. +func BadRequest(w http.ResponseWriter, r *http.Request, err error) { + logger.Error("[HTTP:Bad Request] %s => %v", r.URL, err) - if err != nil { - w.Write(encodeError(err)) - } + builder := response.New(w, r) + builder.WithStatus(http.StatusBadRequest) + builder.WithHeader("Content-Type", "application/json; charset=utf-8") + builder.WithBody(toJSONError(err)) + builder.Write() } -// Forbidden sends a JSON response with the status code 403. -func Forbidden(w http.ResponseWriter) { - logger.Info("[Forbidden]") - commonHeaders(w) - w.WriteHeader(http.StatusForbidden) - w.Write(encodeError(errors.New("Access Forbidden"))) -} +// Unauthorized sends a not authorized error to the client. +func Unauthorized(w http.ResponseWriter, r *http.Request) { + logger.Error("[HTTP:Unauthorized] %s", r.URL) -// Unauthorized sends a JSON response with the status code 401. -func Unauthorized(w http.ResponseWriter) { - commonHeaders(w) - w.WriteHeader(http.StatusUnauthorized) - w.Write(encodeError(errors.New("Access Unauthorized"))) + builder := response.New(w, r) + builder.WithStatus(http.StatusUnauthorized) + builder.WithHeader("Content-Type", "application/json; charset=utf-8") + builder.WithBody(toJSONError(errors.New("Access Unauthorized"))) + builder.Write() } -// BadRequest sends a JSON response with the status code 400. -func BadRequest(w http.ResponseWriter, err error) { - logger.Error("[Bad Request] %v", err) - commonHeaders(w) - w.WriteHeader(http.StatusBadRequest) +// Forbidden sends a forbidden error to the client. +func Forbidden(w http.ResponseWriter, r *http.Request) { + logger.Error("[HTTP:Forbidden] %s", r.URL) - if err != nil { - w.Write(encodeError(err)) - } + builder := response.New(w, r) + builder.WithStatus(http.StatusForbidden) + builder.WithHeader("Content-Type", "application/json; charset=utf-8") + builder.WithBody(toJSONError(errors.New("Access Forbidden"))) + builder.Write() } -func commonHeaders(w http.ResponseWriter) { - w.Header().Set("Accept", "application/json") - w.Header().Set("Content-Type", "application/json; charset=utf-8") +// NotFound sends a page not found error to the client. +func NotFound(w http.ResponseWriter, r *http.Request) { + logger.Error("[HTTP:Not Found] %s", r.URL) + + builder := response.New(w, r) + builder.WithStatus(http.StatusNotFound) + builder.WithHeader("Content-Type", "application/json; charset=utf-8") + builder.WithBody(toJSONError(errors.New("Resource Not Found"))) + builder.Write() } -func encodeError(err error) []byte { +func toJSONError(err error) []byte { type errorMsg struct { ErrorMessage string `json:"error_message"` } - tmp := errorMsg{ErrorMessage: err.Error()} - data, err := json.Marshal(tmp) - if err != nil { - logger.Error("json encoding error: %v", err) - } - - return data + return toJSON(errorMsg{ErrorMessage: err.Error()}) } func toJSON(v interface{}) []byte { b, err := json.Marshal(v) if err != nil { - logger.Error("json encoding error: %v", err) + logger.Error("[HTTP:JSON] %v", err) return []byte("") } diff --git a/http/response/json/json_test.go b/http/response/json/json_test.go new file mode 100644 index 0000000..d22e468 --- /dev/null +++ b/http/response/json/json_test.go @@ -0,0 +1,313 @@ +// Copyright 2018 Frédéric Guillot. All rights reserved. +// Use of this source code is governed by the MIT license +// that can be found in the LICENSE file. + +package json // import "miniflux.app/http/response/json" + +import ( + "errors" + "net/http" + "net/http/httptest" + "testing" +) + +func TestOKResponse(t *testing.T) { + r, err := http.NewRequest("GET", "/", nil) + if err != nil { + t.Fatal(err) + } + + w := httptest.NewRecorder() + + handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + OK(w, r, map[string]string{"key": "value"}) + }) + + handler.ServeHTTP(w, r) + + resp := w.Result() + defer resp.Body.Close() + + expectedStatusCode := http.StatusOK + if resp.StatusCode != expectedStatusCode { + t.Fatalf(`Unexpected status code, got %d instead of %d`, resp.StatusCode, expectedStatusCode) + } + + expectedBody := `{"key":"value"}` + actualBody := w.Body.String() + if actualBody != expectedBody { + t.Fatalf(`Unexpected body, got %q instead of %q`, actualBody, expectedBody) + } + + expectedContentType := "application/json; charset=utf-8" + actualContentType := resp.Header.Get("Content-Type") + if actualContentType != expectedContentType { + t.Fatalf(`Unexpected content type, got %q instead of %q`, actualContentType, expectedContentType) + } +} + +func TestCreatedResponse(t *testing.T) { + r, err := http.NewRequest("GET", "/", nil) + if err != nil { + t.Fatal(err) + } + + w := httptest.NewRecorder() + + handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + Created(w, r, map[string]string{"key": "value"}) + }) + + handler.ServeHTTP(w, r) + resp := w.Result() + + expectedStatusCode := http.StatusCreated + if resp.StatusCode != expectedStatusCode { + t.Fatalf(`Unexpected status code, got %d instead of %d`, resp.StatusCode, expectedStatusCode) + } + + expectedBody := `{"key":"value"}` + actualBody := w.Body.String() + if actualBody != expectedBody { + t.Fatalf(`Unexpected body, got %s instead of %s`, actualBody, expectedBody) + } + + expectedContentType := "application/json; charset=utf-8" + actualContentType := resp.Header.Get("Content-Type") + if actualContentType != expectedContentType { + t.Fatalf(`Unexpected content type, got %q instead of %q`, actualContentType, expectedContentType) + } +} + +func TestNoContentResponse(t *testing.T) { + r, err := http.NewRequest("GET", "/", nil) + if err != nil { + t.Fatal(err) + } + + w := httptest.NewRecorder() + + handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + NoContent(w, r) + }) + + handler.ServeHTTP(w, r) + resp := w.Result() + + expectedStatusCode := http.StatusNoContent + if resp.StatusCode != expectedStatusCode { + t.Fatalf(`Unexpected status code, got %d instead of %d`, resp.StatusCode, expectedStatusCode) + } + + expectedBody := `` + actualBody := w.Body.String() + if actualBody != expectedBody { + t.Fatalf(`Unexpected body, got %s instead of %s`, actualBody, expectedBody) + } + + expectedContentType := "application/json; charset=utf-8" + actualContentType := resp.Header.Get("Content-Type") + if actualContentType != expectedContentType { + t.Fatalf(`Unexpected content type, got %q instead of %q`, actualContentType, expectedContentType) + } +} + +func TestServerErrorResponse(t *testing.T) { + r, err := http.NewRequest("GET", "/", nil) + if err != nil { + t.Fatal(err) + } + + w := httptest.NewRecorder() + + handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + ServerError(w, r, errors.New("some error")) + }) + + handler.ServeHTTP(w, r) + + resp := w.Result() + defer resp.Body.Close() + + expectedStatusCode := http.StatusInternalServerError + if resp.StatusCode != expectedStatusCode { + t.Fatalf(`Unexpected status code, got %d instead of %d`, resp.StatusCode, expectedStatusCode) + } + + expectedBody := `{"error_message":"some error"}` + actualBody := w.Body.String() + if actualBody != expectedBody { + t.Fatalf(`Unexpected body, got %q instead of %q`, actualBody, expectedBody) + } + + expectedContentType := "application/json; charset=utf-8" + actualContentType := resp.Header.Get("Content-Type") + if actualContentType != expectedContentType { + t.Fatalf(`Unexpected content type, got %q instead of %q`, actualContentType, expectedContentType) + } +} + +func TestBadRequestResponse(t *testing.T) { + r, err := http.NewRequest("GET", "/", nil) + if err != nil { + t.Fatal(err) + } + + w := httptest.NewRecorder() + + handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + BadRequest(w, r, errors.New("Some Error")) + }) + + handler.ServeHTTP(w, r) + resp := w.Result() + + expectedStatusCode := http.StatusBadRequest + if resp.StatusCode != expectedStatusCode { + t.Fatalf(`Unexpected status code, got %d instead of %d`, resp.StatusCode, expectedStatusCode) + } + + expectedBody := `{"error_message":"Some Error"}` + actualBody := w.Body.String() + if actualBody != expectedBody { + t.Fatalf(`Unexpected body, got %s instead of %s`, actualBody, expectedBody) + } + + expectedContentType := "application/json; charset=utf-8" + actualContentType := resp.Header.Get("Content-Type") + if actualContentType != expectedContentType { + t.Fatalf(`Unexpected content type, got %q instead of %q`, actualContentType, expectedContentType) + } +} + +func TestUnauthorizedResponse(t *testing.T) { + r, err := http.NewRequest("GET", "/", nil) + if err != nil { + t.Fatal(err) + } + + w := httptest.NewRecorder() + + handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + Unauthorized(w, r) + }) + + handler.ServeHTTP(w, r) + resp := w.Result() + + expectedStatusCode := http.StatusUnauthorized + if resp.StatusCode != expectedStatusCode { + t.Fatalf(`Unexpected status code, got %d instead of %d`, resp.StatusCode, expectedStatusCode) + } + + expectedBody := `{"error_message":"Access Unauthorized"}` + actualBody := w.Body.String() + if actualBody != expectedBody { + t.Fatalf(`Unexpected body, got %s instead of %s`, actualBody, expectedBody) + } + + expectedContentType := "application/json; charset=utf-8" + actualContentType := resp.Header.Get("Content-Type") + if actualContentType != expectedContentType { + t.Fatalf(`Unexpected content type, got %q instead of %q`, actualContentType, expectedContentType) + } +} + +func TestForbiddenResponse(t *testing.T) { + r, err := http.NewRequest("GET", "/", nil) + if err != nil { + t.Fatal(err) + } + + w := httptest.NewRecorder() + + handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + Forbidden(w, r) + }) + + handler.ServeHTTP(w, r) + resp := w.Result() + + expectedStatusCode := http.StatusForbidden + if resp.StatusCode != expectedStatusCode { + t.Fatalf(`Unexpected status code, got %d instead of %d`, resp.StatusCode, expectedStatusCode) + } + + expectedBody := `{"error_message":"Access Forbidden"}` + actualBody := w.Body.String() + if actualBody != expectedBody { + t.Fatalf(`Unexpected body, got %s instead of %s`, actualBody, expectedBody) + } + + expectedContentType := "application/json; charset=utf-8" + actualContentType := resp.Header.Get("Content-Type") + if actualContentType != expectedContentType { + t.Fatalf(`Unexpected content type, got %q instead of %q`, actualContentType, expectedContentType) + } +} + +func TestNotFoundResponse(t *testing.T) { + r, err := http.NewRequest("GET", "/", nil) + if err != nil { + t.Fatal(err) + } + + w := httptest.NewRecorder() + + handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + NotFound(w, r) + }) + + handler.ServeHTTP(w, r) + resp := w.Result() + + expectedStatusCode := http.StatusNotFound + if resp.StatusCode != expectedStatusCode { + t.Fatalf(`Unexpected status code, got %d instead of %d`, resp.StatusCode, expectedStatusCode) + } + + expectedBody := `{"error_message":"Resource Not Found"}` + actualBody := w.Body.String() + if actualBody != expectedBody { + t.Fatalf(`Unexpected body, got %s instead of %s`, actualBody, expectedBody) + } + + expectedContentType := "application/json; charset=utf-8" + actualContentType := resp.Header.Get("Content-Type") + if actualContentType != expectedContentType { + t.Fatalf(`Unexpected content type, got %q instead of %q`, actualContentType, expectedContentType) + } +} + +func TestBuildInvalidJSONResponse(t *testing.T) { + r, err := http.NewRequest("GET", "/", nil) + if err != nil { + t.Fatal(err) + } + + w := httptest.NewRecorder() + + handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + OK(w, r, make(chan int)) + }) + + handler.ServeHTTP(w, r) + resp := w.Result() + + expectedStatusCode := http.StatusOK + if resp.StatusCode != expectedStatusCode { + t.Fatalf(`Unexpected status code, got %d instead of %d`, resp.StatusCode, expectedStatusCode) + } + + expectedBody := `` + actualBody := w.Body.String() + if actualBody != expectedBody { + t.Fatalf(`Unexpected body, got %s instead of %s`, actualBody, expectedBody) + } + + expectedContentType := "application/json; charset=utf-8" + actualContentType := resp.Header.Get("Content-Type") + if actualContentType != expectedContentType { + t.Fatalf(`Unexpected content type, got %q instead of %q`, actualContentType, expectedContentType) + } +} |