From def02dfebada38bde91dc98db85eff3d8923a923 Mon Sep 17 00:00:00 2001 From: Srivahni Chivukula Date: Fri, 21 Feb 2020 10:08:04 -0800 Subject: Add apps under composite app API Implemented create, get and delete handlers for the apps under composite app. Added unit tests Added remove function to mockdb Handled multipart POST request to upload file along with app data. Issue-ID: MULTICLOUD-998 Signed-off-by: Srivahni Chivukula Change-Id: I25c1faba1212c0cc881c2cd599e8e66a7b93033e --- src/orchestrator/api/apphandler.go | 224 +++++++++++++++++++++++++++++++++++++ 1 file changed, 224 insertions(+) create mode 100644 src/orchestrator/api/apphandler.go (limited to 'src/orchestrator/api/apphandler.go') diff --git a/src/orchestrator/api/apphandler.go b/src/orchestrator/api/apphandler.go new file mode 100644 index 00000000..3cd2dbc8 --- /dev/null +++ b/src/orchestrator/api/apphandler.go @@ -0,0 +1,224 @@ +/* + * 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) +} -- cgit 1.2.3-korg