3642be6f21
* client: always parse the json error message field and return its contents * Use ErrBadRequest and ErrNotFound in every handler and command * Gateway: by default pass underlying service error (configstore, runservice) to client keeping the status code and message. In future, if some errors must be masked, we should change the specific parts that need special handling.
130 lines
3.3 KiB
Go
130 lines
3.3 KiB
Go
// Copyright 2019 Sorint.lab
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package api
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import (
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"encoding/json"
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"net/http"
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"net/url"
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"github.com/gorilla/mux"
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"github.com/pkg/errors"
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"github.com/sorintlab/agola/internal/services/types"
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"github.com/sorintlab/agola/internal/util"
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)
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type ErrorResponse struct {
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Message string `json:"message"`
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}
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func ErrorResponseFromError(err error) *ErrorResponse {
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switch {
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case util.IsErrBadRequest(err):
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fallthrough
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case util.IsErrNotFound(err):
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return &ErrorResponse{Message: err.Error()}
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}
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// on generic error return an generic message to not leak the real error
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return &ErrorResponse{Message: "internal server error"}
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}
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func httpError(w http.ResponseWriter, err error) bool {
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if err == nil {
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return false
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}
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response := ErrorResponseFromError(err)
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resj, merr := json.Marshal(response)
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if merr != nil {
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w.WriteHeader(http.StatusInternalServerError)
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return true
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}
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switch {
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case util.IsErrBadRequest(err):
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w.WriteHeader(http.StatusBadRequest)
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w.Write(resj)
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case util.IsErrNotFound(err):
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w.WriteHeader(http.StatusNotFound)
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w.Write(resj)
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default:
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w.WriteHeader(http.StatusInternalServerError)
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w.Write(resj)
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}
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return true
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}
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func httpResponse(w http.ResponseWriter, code int, res interface{}) error {
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w.Header().Set("Content-Type", "application/json")
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if res != nil {
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resj, err := json.Marshal(res)
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if err != nil {
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httpError(w, err)
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return err
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}
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w.WriteHeader(code)
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_, err = w.Write(resj)
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return err
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}
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w.WriteHeader(code)
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return nil
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}
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func httpErrorFromRemote(w http.ResponseWriter, resp *http.Response, err error) bool {
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if err != nil {
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// on generic error return an generic message to not leak the real error
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response := &ErrorResponse{Message: "internal server error"}
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if resp != nil {
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response = &ErrorResponse{Message: err.Error()}
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}
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resj, merr := json.Marshal(response)
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if merr != nil {
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w.WriteHeader(http.StatusInternalServerError)
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return true
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}
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if resp != nil {
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w.WriteHeader(resp.StatusCode)
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} else {
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w.WriteHeader(http.StatusInternalServerError)
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}
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w.Write(resj)
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return true
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}
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return false
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}
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func GetConfigTypeRef(r *http.Request) (types.ConfigType, string, error) {
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vars := mux.Vars(r)
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projectRef, err := url.PathUnescape(vars["projectref"])
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if err != nil {
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return "", "", util.NewErrBadRequest(errors.Wrapf(err, "wrong projectref %q", vars["projectref"]))
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}
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if projectRef != "" {
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return types.ConfigTypeProject, projectRef, nil
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}
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projectGroupRef, err := url.PathUnescape(vars["projectgroupref"])
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if err != nil {
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return "", "", util.NewErrBadRequest(errors.Wrapf(err, "wrong projectgroupref %q", vars["projectgroupref"]))
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}
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if projectGroupRef != "" {
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return types.ConfigTypeProjectGroup, projectGroupRef, nil
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}
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return "", "", util.NewErrBadRequest(errors.Errorf("cannot get project or projectgroup ref"))
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}
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