286 lines
8.3 KiB
Go
286 lines
8.3 KiB
Go
/*
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Copyright 2016 The Fission Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package controller
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import (
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"sort"
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restfulspec "github.com/emicklei/go-restful-openapi/v2"
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restful "github.com/emicklei/go-restful/v3"
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"github.com/go-openapi/spec"
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"github.com/gorilla/mux"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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fv1 "github.com/fission/fission/pkg/apis/core/v1"
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ferror "github.com/fission/fission/pkg/error"
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)
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func RegisterHTTPTriggerRoute(ws *restful.WebService) {
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tags := []string{"HTTPTrigger"}
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specTag = append(specTag, spec.Tag{TagProps: spec.TagProps{Name: "HTTPTrigger", Description: "HTTPTrigger Operation"}})
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ws.Route(
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ws.GET("/v2/triggers/http").
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Doc("List all HTTP triggers").
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Metadata(restfulspec.KeyOpenAPITags, tags).
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To(func(req *restful.Request, resp *restful.Response) {
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resp.ResponseWriter.WriteHeader(http.StatusOK)
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}).
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Param(ws.QueryParameter("namespace", "Namespace of httpTrigger").DataType("string").DefaultValue(metav1.NamespaceAll).Required(false)).
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Produces(restful.MIME_JSON).
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Writes([]fv1.HTTPTrigger{}).
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Returns(http.StatusOK, "List of httpTriggers", []fv1.HTTPTrigger{}))
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ws.Route(
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ws.POST("/v2/triggers/http").
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Doc("Create HTTP trigger").
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Metadata(restfulspec.KeyOpenAPITags, tags).
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To(func(req *restful.Request, resp *restful.Response) {
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resp.ResponseWriter.WriteHeader(http.StatusOK)
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}).
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Produces(restful.MIME_JSON).
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Reads(fv1.HTTPTrigger{}).
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Writes(metav1.ObjectMeta{}).
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Returns(http.StatusCreated, "ObjectMeta of created httpTrigger", metav1.ObjectMeta{}))
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ws.Route(
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ws.GET("/v2/triggers/http/{httpTrigger}").
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Doc("Get detail of HTTP trigger").
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Metadata(restfulspec.KeyOpenAPITags, tags).
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To(func(req *restful.Request, resp *restful.Response) {
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resp.ResponseWriter.WriteHeader(http.StatusOK)
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}).
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Param(ws.PathParameter("httpTrigger", "HTTPTrigger name").DataType("string").DefaultValue("").Required(true)).
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Param(ws.QueryParameter("namespace", "Namespace of httpTrigger").DataType("string").DefaultValue(metav1.NamespaceAll).Required(false)).
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Produces(restful.MIME_JSON).
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Writes(fv1.HTTPTrigger{}). // on the response
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Returns(http.StatusOK, "A httpTrigger", fv1.HTTPTrigger{}))
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ws.Route(
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ws.PUT("/v2/triggers/http/{httpTrigger}").
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Doc("Update HTTP trigger").
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Metadata(restfulspec.KeyOpenAPITags, tags).
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To(func(req *restful.Request, resp *restful.Response) {
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resp.ResponseWriter.WriteHeader(http.StatusOK)
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}).
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Param(ws.PathParameter("httpTrigger", "HTTPTrigger name").DataType("string").DefaultValue("").Required(true)).
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Produces(restful.MIME_JSON).
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Reads(fv1.HTTPTrigger{}).
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Writes(metav1.ObjectMeta{}). // on the response
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Returns(http.StatusOK, "ObjectMeta of updated httpTrigger", metav1.ObjectMeta{}))
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ws.Route(
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ws.DELETE("/v2/triggers/http/{httpTrigger}").
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Doc("Delete HTTP trigger").
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Metadata(restfulspec.KeyOpenAPITags, tags).
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To(func(req *restful.Request, resp *restful.Response) {
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resp.ResponseWriter.WriteHeader(http.StatusOK)
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}).
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Param(ws.PathParameter("httpTrigger", "HTTPTrigger name").DataType("string").DefaultValue("").Required(true)).
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Param(ws.QueryParameter("namespace", "Namespace of httpTrigger").DataType("string").DefaultValue(metav1.NamespaceAll).Required(false)).
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Produces(restful.MIME_JSON).
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Returns(http.StatusOK, "Only HTTP status returned", nil))
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}
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func (a *API) HTTPTriggerApiList(w http.ResponseWriter, r *http.Request) {
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ns := a.extractQueryParamFromRequest(r, "namespace")
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if len(ns) == 0 {
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ns = metav1.NamespaceAll
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}
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triggers, err := a.fissionClient.CoreV1().HTTPTriggers(ns).List(r.Context(), metav1.ListOptions{})
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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resp, err := json.Marshal(triggers.Items)
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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a.respondWithSuccess(w, resp)
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}
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// checkHTTPTriggerDuplicates checks whether the tuple (Method, Host, URL) is duplicate or not.
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func (a *API) checkHTTPTriggerDuplicates(ctx context.Context, t *fv1.HTTPTrigger) error {
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triggers, err := a.fissionClient.CoreV1().HTTPTriggers(metav1.NamespaceAll).List(ctx, metav1.ListOptions{})
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if err != nil {
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return err
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}
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for _, ht := range triggers.Items {
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if ht.ObjectMeta.UID == t.ObjectMeta.UID {
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// Same resource. No need to check.
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continue
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}
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urlMatch := false
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if ht.Spec.RelativeURL == t.Spec.RelativeURL || (ht.Spec.Prefix != nil && t.Spec.Prefix != nil && *ht.Spec.Prefix != "" && *ht.Spec.Prefix == *t.Spec.Prefix) {
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urlMatch = true
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}
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methodMatch := false
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if ht.Spec.Method == t.Spec.Method && len(ht.Spec.Methods) == len(t.Spec.Methods) {
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methodMatch = true
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sort.Strings(ht.Spec.Methods)
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sort.Strings(t.Spec.Methods)
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for i, m1 := range ht.Spec.Methods {
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if m1 != t.Spec.Methods[i] {
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methodMatch = false
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}
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}
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}
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if urlMatch && methodMatch && ht.Spec.Method == t.Spec.Method && ht.Spec.Host == t.Spec.Host {
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return ferror.MakeError(ferror.ErrorNameExists,
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fmt.Sprintf("HTTPTrigger with same Host, URL & method already exists (%v)",
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ht.ObjectMeta.Name))
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}
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}
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return nil
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}
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func (a *API) HTTPTriggerApiCreate(w http.ResponseWriter, r *http.Request) {
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body, err := io.ReadAll(r.Body)
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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var t fv1.HTTPTrigger
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err = json.Unmarshal(body, &t)
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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// Ensure we don't have a duplicate HTTP route defined (same URL and method)
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err = a.checkHTTPTriggerDuplicates(r.Context(), &t)
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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// check if namespace exists, if not create it.
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err = a.createNsIfNotExists(r.Context(), t.ObjectMeta.Namespace)
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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tnew, err := a.fissionClient.CoreV1().HTTPTriggers(t.ObjectMeta.Namespace).Create(r.Context(), &t, metav1.CreateOptions{})
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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resp, err := json.Marshal(tnew.ObjectMeta)
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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w.WriteHeader(http.StatusCreated)
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a.respondWithSuccess(w, resp)
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}
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func (a *API) HTTPTriggerApiGet(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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name := vars["httpTrigger"]
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ns := a.extractQueryParamFromRequest(r, "namespace")
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if len(ns) == 0 {
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ns = metav1.NamespaceDefault
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}
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t, err := a.fissionClient.CoreV1().HTTPTriggers(ns).Get(r.Context(), name, metav1.GetOptions{})
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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resp, err := json.Marshal(t)
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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a.respondWithSuccess(w, resp)
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}
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func (a *API) HTTPTriggerApiUpdate(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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name := vars["httpTrigger"]
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body, err := io.ReadAll(r.Body)
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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var t fv1.HTTPTrigger
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err = json.Unmarshal(body, &t)
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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if name != t.ObjectMeta.Name {
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err = ferror.MakeError(ferror.ErrorInvalidArgument, "HTTPTrigger name doesn't match URL")
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a.respondWithError(w, err)
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return
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}
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err = a.checkHTTPTriggerDuplicates(r.Context(), &t)
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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tnew, err := a.fissionClient.CoreV1().HTTPTriggers(t.ObjectMeta.Namespace).Update(r.Context(), &t, metav1.UpdateOptions{})
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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resp, err := json.Marshal(tnew.ObjectMeta)
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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a.respondWithSuccess(w, resp)
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}
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func (a *API) HTTPTriggerApiDelete(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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name := vars["httpTrigger"]
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ns := a.extractQueryParamFromRequest(r, "namespace")
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if len(ns) == 0 {
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ns = metav1.NamespaceDefault
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}
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err := a.fissionClient.CoreV1().HTTPTriggers(ns).Delete(r.Context(), name, metav1.DeleteOptions{})
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if err != nil {
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a.respondWithError(w, err)
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return
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}
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a.respondWithSuccess(w, []byte(""))
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}
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