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-rw-r--r--src/orchestrator/api/apphandler.go224
1 files changed, 224 insertions, 0 deletions
diff --git a/src/orchestrator/api/apphandler.go b/src/orchestrator/api/apphandler.go
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+++ b/src/orchestrator/api/apphandler.go
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+/*
+ * Copyright 2020 Intel Corporation, Inc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package api
+
+import (
+ "bytes"
+ "encoding/base64"
+ "encoding/json"
+ "io"
+ "io/ioutil"
+ "mime"
+ "mime/multipart"
+ "net/http"
+ "net/textproto"
+
+ moduleLib "github.com/onap/multicloud-k8s/src/orchestrator/pkg/module"
+ "github.com/onap/multicloud-k8s/src/orchestrator/utils"
+
+ "github.com/gorilla/mux"
+)
+
+// appHandler to store backend implementations objects
+// Also simplifies mocking for unit testing purposes
+type appHandler struct {
+ // Interface that implements App operations
+ // We will set this variable with a mock interface for testing
+ client moduleLib.AppManager
+}
+
+// createAppHandler handles creation of the App entry in the database
+// This is a multipart handler. See following example curl request
+// curl -X POST http://localhost:9015/v2/projects/sampleProject/composite-apps/sampleCompositeApp/v1/apps \
+// -F "metadata={\"metadata\":{\"name\":\"app\",\"description\":\"sample app\",\"UserData1\":\"data1\",\"UserData2\":\"data2\"}};type=application/json" \
+// -F file=@/pathToFile
+
+func (h appHandler) createAppHandler(w http.ResponseWriter, r *http.Request) {
+ var a moduleLib.App
+ var ac moduleLib.AppContent
+
+ // Implemenation using multipart form
+ // Set Max size to 16mb here
+ err := r.ParseMultipartForm(16777216)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+ return
+ }
+
+ jsn := bytes.NewBuffer([]byte(r.FormValue("metadata")))
+ err = json.NewDecoder(jsn).Decode(&a)
+ switch {
+ case err == io.EOF:
+ http.Error(w, "Empty body", http.StatusBadRequest)
+ return
+ case err != nil:
+ http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+ return
+ }
+
+ // Name is required.
+ if a.Metadata.Name == "" {
+ http.Error(w, "Missing name in POST request", http.StatusBadRequest)
+ return
+ }
+
+ //Read the file section and ignore the header
+ file, _, err := r.FormFile("file")
+ if err != nil {
+ http.Error(w, "Unable to process file", http.StatusUnprocessableEntity)
+ return
+ }
+
+ defer file.Close()
+
+ //Convert the file content to base64 for storage
+ content, err := ioutil.ReadAll(file)
+ if err != nil {
+ http.Error(w, "Unable to read file", http.StatusUnprocessableEntity)
+ return
+ }
+
+ err = utils.IsTarGz(bytes.NewBuffer(content))
+ if err != nil {
+ http.Error(w, "Error in file format", http.StatusUnprocessableEntity)
+ return
+ }
+
+ ac.FileContent = base64.StdEncoding.EncodeToString(content)
+
+ vars := mux.Vars(r)
+ projectName := vars["project-name"]
+ compositeAppName := vars["composite-app-name"]
+ compositeAppVersion := vars["version"]
+
+ ret, err := h.client.CreateApp(a, ac, projectName, compositeAppName, compositeAppVersion)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ w.Header().Set("Content-Type", "application/json")
+ w.WriteHeader(http.StatusCreated)
+ err = json.NewEncoder(w).Encode(ret)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+}
+
+// getAppHandler handles GET operations on a particular App Name
+// Returns an app
+func (h appHandler) getAppHandler(w http.ResponseWriter, r *http.Request) {
+ vars := mux.Vars(r)
+ projectName := vars["project-name"]
+ compositeAppName := vars["composite-app-name"]
+ compositeAppVersion := vars["version"]
+ name := vars["app-name"]
+
+ accepted, _, err := mime.ParseMediaType(r.Header.Get("Accept"))
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusNotAcceptable)
+ return
+ }
+
+ var retApp moduleLib.App
+ var retAppContent moduleLib.AppContent
+
+ retApp, err = h.client.GetApp(name, projectName, compositeAppName, compositeAppVersion)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ retAppContent, err = h.client.GetAppContent(name, projectName, compositeAppName, compositeAppVersion)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ switch accepted {
+ case "multipart/form-data":
+ mpw := multipart.NewWriter(w)
+ w.Header().Set("Content-Type", mpw.FormDataContentType())
+ w.WriteHeader(http.StatusOK)
+ pw, err := mpw.CreatePart(textproto.MIMEHeader{"Content-Type": {"application/json"}, "Content-Disposition": {"form-data; name=metadata"}})
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ if err := json.NewEncoder(pw).Encode(retApp); err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ pw, err = mpw.CreatePart(textproto.MIMEHeader{"Content-Type": {"application/octet-stream"}, "Content-Disposition": {"form-data; name=file; filename=fileContent"}})
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ fcBytes, err := base64.StdEncoding.DecodeString(retAppContent.FileContent)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ _, err = pw.Write(fcBytes)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ case "application/json":
+ w.Header().Set("Content-Type", "application/json")
+ w.WriteHeader(http.StatusOK)
+ err = json.NewEncoder(w).Encode(retApp)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ case "application/octet-stream":
+ w.Header().Set("Content-Type", "application/octet-stream")
+ w.WriteHeader(http.StatusOK)
+ fcBytes, err := base64.StdEncoding.DecodeString(retAppContent.FileContent)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ _, err = w.Write(fcBytes)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ default:
+ http.Error(w, "set Accept: multipart/form-data, application/json or application/octet-stream", http.StatusMultipleChoices)
+ return
+ }
+}
+
+// deleteAppHandler handles DELETE operations on a particular App Name
+func (h appHandler) deleteAppHandler(w http.ResponseWriter, r *http.Request) {
+ vars := mux.Vars(r)
+ projectName := vars["project-name"]
+ compositeAppName := vars["composite-app-name"]
+ compositeAppVersion := vars["version"]
+ name := vars["app-name"]
+
+ err := h.client.DeleteApp(name, projectName, compositeAppName, compositeAppVersion)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ w.WriteHeader(http.StatusNoContent)
+}