131 lines
3.4 KiB
Go
131 lines
3.4 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/sorintlab/agola/internal/services/types"
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"github.com/sorintlab/agola/internal/util"
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errors "golang.org/x/xerrors"
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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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var aerr error
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// use inner errors if of these types
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switch {
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case errors.Is(err, &util.ErrBadRequest{}):
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var cerr *util.ErrBadRequest
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errors.As(err, &cerr)
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aerr = cerr
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case errors.Is(err, &util.ErrNotFound{}):
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var cerr *util.ErrNotFound
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errors.As(err, &cerr)
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aerr = cerr
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case errors.Is(err, &util.ErrForbidden{}):
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var cerr *util.ErrForbidden
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errors.As(err, &cerr)
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aerr = cerr
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case errors.Is(err, &util.ErrUnauthorized{}):
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var cerr *util.ErrUnauthorized
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errors.As(err, &cerr)
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aerr = cerr
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}
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if aerr != nil {
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return &ErrorResponse{Message: aerr.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 errors.Is(err, &util.ErrBadRequest{}):
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w.WriteHeader(http.StatusBadRequest)
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w.Write(resj)
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case errors.Is(err, &util.ErrNotFound{}):
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w.WriteHeader(http.StatusNotFound)
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w.Write(resj)
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case errors.Is(err, &util.ErrForbidden{}):
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w.WriteHeader(http.StatusForbidden)
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w.Write(resj)
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case errors.Is(err, &util.ErrUnauthorized{}):
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w.WriteHeader(http.StatusUnauthorized)
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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 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.Errorf("wrong projectref %q: %w", vars["projectref"], err))
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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.Errorf("wrong projectgroupref %q: %w", vars["projectgroupref"], err))
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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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