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migrate to WebSocket for frontend and backend communication

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This commit is contained in:
Bagas Aulia Rezki
2024-09-09 21:38:10 +07:00
parent b46915e46d
commit b23bf8898b
16 changed files with 309 additions and 202 deletions
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144
handler/upload/initialisation/initialisation.go
View File

@ -1,144 +0,0 @@
package initialisation
import (
"encoding/json"
"errors"
"fmt"
"github.com/fossyy/filekeeper/app"
"io"
"net/http"
"os"
"path/filepath"
"github.com/fossyy/filekeeper/types"
"github.com/fossyy/filekeeper/types/models"
"github.com/google/uuid"
"gorm.io/gorm"
)
func POST(w http.ResponseWriter, r *http.Request) {
userSession := r.Context().Value("user").(types.User)
body, err := io.ReadAll(r.Body)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
return
}
var fileInfo types.FileInfo
if err := json.Unmarshal(body, &fileInfo); err != nil {
w.WriteHeader(http.StatusInternalServerError)
return
}
fileData, err := app.Server.Service.GetUserFile(fileInfo.Name, userSession.UserID.String())
if err != nil {
if errors.Is(err, gorm.ErrRecordNotFound) {
upload, err := handleNewUpload(userSession, fileInfo)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
return
}
fileData = &types.FileWithDetail{
ID: fileData.ID,
OwnerID: fileData.OwnerID,
Name: fileData.Name,
Size: fileData.Size,
Downloaded: fileData.Downloaded,
}
fileData.Chunk = make(map[string]bool)
fileData.Done = true
saveFolder := filepath.Join("uploads", userSession.UserID.String(), fileData.ID.String(), fileData.Name)
for i := 0; i <= int(fileInfo.Chunk-1); i++ {
fileName := fmt.Sprintf("%s/chunk_%d", saveFolder, i)
if _, err := os.Stat(fileName); os.IsNotExist(err) {
fileData.Chunk[fmt.Sprintf("chunk_%d", i)] = false
fileData.Done = false
} else {
fileData.Chunk[fmt.Sprintf("chunk_%d", i)] = true
}
}
respondJSON(w, upload)
return
}
respondErrorJSON(w, err, http.StatusInternalServerError)
return
}
fileData.Chunk = make(map[string]bool)
fileData.Done = true
saveFolder := filepath.Join("uploads", userSession.UserID.String(), fileData.ID.String(), fileData.Name)
for i := 0; i <= int(fileInfo.Chunk-1); i++ {
fileName := fmt.Sprintf("%s/chunk_%d", saveFolder, i)
if _, err := os.Stat(fileName); os.IsNotExist(err) {
fileData.Chunk[fmt.Sprintf("chunk_%d", i)] = false
fileData.Done = false
} else {
fileData.Chunk[fmt.Sprintf("chunk_%d", i)] = true
}
}
respondJSON(w, fileData)
}
func handleNewUpload(user types.User, file types.FileInfo) (models.File, error) {
uploadDir := "uploads"
if _, err := os.Stat(uploadDir); os.IsNotExist(err) {
app.Server.Logger.Error(err.Error())
err := os.Mkdir(uploadDir, os.ModePerm)
if err != nil {
app.Server.Logger.Error(err.Error())
return models.File{}, err
}
}
fileID := uuid.New()
ownerID := user.UserID
currentDir, _ := os.Getwd()
basePath := filepath.Join(currentDir, uploadDir)
saveFolder := filepath.Join(basePath, ownerID.String(), fileID.String())
if filepath.Dir(saveFolder) != filepath.Join(basePath, ownerID.String()) {
return models.File{}, errors.New("invalid path")
}
err := os.MkdirAll(saveFolder, os.ModePerm)
if err != nil {
app.Server.Logger.Error(err.Error())
return models.File{}, err
}
newFile := models.File{
ID: fileID,
OwnerID: ownerID,
Name: file.Name,
Size: file.Size,
TotalChunk: file.Chunk - 1,
Downloaded: 0,
}
err = app.Server.Database.CreateFile(&newFile)
if err != nil {
app.Server.Logger.Error(err.Error())
return models.File{}, err
}
return newFile, nil
}
func respondJSON(w http.ResponseWriter, data interface{}) {
w.Header().Set("Content-Type", "application/json")
if err := json.NewEncoder(w).Encode(data); err != nil {
handleError(w, err, http.StatusInternalServerError)
}
}
func respondErrorJSON(w http.ResponseWriter, err error, statusCode int) {
w.WriteHeader(statusCode)
respondJSON(w, map[string]string{"error": err.Error()})
}
func handleError(w http.ResponseWriter, err error, statusCode int) {
http.Error(w, err.Error(), statusCode)
app.Server.Logger.Error(err.Error())
}

207
handler/user/user.go
View File

@ -1,22 +1,63 @@
package userHandler
import (
"encoding/json"
"errors"
"fmt"
"github.com/a-h/templ"
"github.com/fossyy/filekeeper/app"
"github.com/fossyy/filekeeper/types"
"github.com/fossyy/filekeeper/view/client/user"
"net/http"
"github.com/fossyy/filekeeper/session"
"github.com/fossyy/filekeeper/types"
"github.com/fossyy/filekeeper/types/models"
"github.com/fossyy/filekeeper/view/client/user"
"github.com/google/uuid"
"github.com/gorilla/websocket"
"gorm.io/gorm"
"net/http"
"os"
"path/filepath"
)
var errorMessages = map[string]string{
"password_not_match": "The passwords provided do not match. Please try again.",
}
var upgrader = websocket.Upgrader{
ReadBufferSize: 1024,
WriteBufferSize: 1024,
}
type ActionType string
const (
UploadNewFile ActionType = "UploadNewFile"
DeleteFile ActionType = "DeleteFile"
Ping ActionType = "Ping"
)
type WebsocketAction struct {
Action ActionType `json:"action"`
}
type ActionUploadNewFile struct {
Action string `json:"action"`
Name string `json:"name"`
Size uint64 `json:"size"`
Chunk uint64 `json:"chunk"`
RequestID string `json:"requestID"`
}
func GET(w http.ResponseWriter, r *http.Request) {
var component templ.Component
userSession := r.Context().Value("user").(types.User)
if r.Header.Get("upgrade") == "websocket" {
upgrade, err := upgrader.Upgrade(w, r, nil)
if err != nil {
panic(err)
return
}
handlerWS(upgrade, userSession)
}
var component templ.Component
sessions, err := session.GetSessions(userSession.Email)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
@ -45,3 +86,159 @@ func GET(w http.ResponseWriter, r *http.Request) {
return
}
}
func handlerWS(conn *websocket.Conn, userSession types.User) {
defer conn.Close()
var err error
var message []byte
for {
_, message, err = conn.ReadMessage()
if err != nil {
if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway, websocket.CloseAbnormalClosure) {
fmt.Println("Unexpected connection closure:", err)
} else {
fmt.Println("Connection closed:", err)
}
return
}
var action WebsocketAction
err = json.Unmarshal(message, &action)
if err != nil {
fmt.Println("Error unmarshalling WebsocketAction:", err)
sendErrorResponse(conn, action.Action)
continue
}
switch action.Action {
case UploadNewFile:
var uploadNewFile ActionUploadNewFile
err = json.Unmarshal(message, &uploadNewFile)
if err != nil {
fmt.Println("Error unmarshalling ActionUploadNewFile:", err)
sendErrorResponse(conn, action.Action)
continue
}
var file *models.File
file, err = app.Server.Database.GetUserFile(uploadNewFile.Name, userSession.UserID.String())
if err != nil {
if errors.Is(err, gorm.ErrRecordNotFound) {
newFile := models.File{
ID: uuid.New(),
OwnerID: userSession.UserID,
Name: uploadNewFile.Name,
Size: uploadNewFile.Size,
TotalChunk: uploadNewFile.Chunk,
Downloaded: 0,
}
err := app.Server.Database.CreateFile(&newFile)
if err != nil {
sendErrorResponse(conn, action.Action)
continue
}
fileData := &types.FileWithDetail{
ID: newFile.ID,
OwnerID: newFile.OwnerID,
Name: newFile.Name,
Size: newFile.Size,
Downloaded: newFile.Downloaded,
}
fileData.Chunk = make(map[string]bool)
fileData.Done = true
saveFolder := filepath.Join("uploads", userSession.UserID.String(), newFile.ID.String(), newFile.Name)
for i := 0; i <= int(newFile.TotalChunk); i++ {
fileName := fmt.Sprintf("%s/chunk_%d", saveFolder, i)
if _, err := os.Stat(fileName); os.IsNotExist(err) {
fileData.Chunk[fmt.Sprintf("chunk_%d", i)] = false
fileData.Done = false
} else {
fileData.Chunk[fmt.Sprintf("chunk_%d", i)] = true
}
}
sendSuccessResponseWithID(conn, action.Action, fileData, uploadNewFile.RequestID)
continue
} else {
sendErrorResponse(conn, action.Action)
continue
}
}
fileData := &types.FileWithDetail{
ID: file.ID,
OwnerID: file.OwnerID,
Name: file.Name,
Size: file.Size,
Downloaded: file.Downloaded,
Done: false,
}
fileData.Chunk = make(map[string]bool)
fileData.Done = true
saveFolder := filepath.Join("uploads", userSession.UserID.String(), fileData.ID.String(), fileData.Name)
for i := 0; i <= int(file.TotalChunk-1); i++ {
fileName := fmt.Sprintf("%s/chunk_%d", saveFolder, i)
if _, err := os.Stat(fileName); os.IsNotExist(err) {
fileData.Chunk[fmt.Sprintf("chunk_%d", i)] = false
fileData.Done = false
} else {
fileData.Chunk[fmt.Sprintf("chunk_%d", i)] = true
}
}
sendSuccessResponseWithID(conn, action.Action, fileData, uploadNewFile.RequestID)
continue
case Ping:
sendSuccessResponse(conn, action.Action, map[string]string{"message": "received"})
continue
}
}
}
func sendErrorResponse(conn *websocket.Conn, action ActionType) {
response := map[string]interface{}{
"action": action,
"status": "error",
}
marshal, err := json.Marshal(response)
if err != nil {
fmt.Println("Error marshalling error response:", err)
return
}
err = conn.WriteMessage(websocket.TextMessage, marshal)
if err != nil {
fmt.Println("Error writing error response:", err)
}
}
func sendSuccessResponse(conn *websocket.Conn, action ActionType, response interface{}) {
responseJSON := map[string]interface{}{
"action": action,
"status": "success",
"response": response,
}
marshal, err := json.Marshal(responseJSON)
if err != nil {
fmt.Println("Error marshalling success response:", err)
return
}
err = conn.WriteMessage(websocket.TextMessage, marshal)
if err != nil {
fmt.Println("Error writing success response:", err)
}
}
func sendSuccessResponseWithID(conn *websocket.Conn, action ActionType, response interface{}, responseID string) {
responseJSON := map[string]interface{}{
"action": action,
"status": "success",
"response": response,
"responseID": responseID,
}
marshal, err := json.Marshal(responseJSON)
if err != nil {
fmt.Println("Error marshalling success response:", err)
return
}
err = conn.WriteMessage(websocket.TextMessage, marshal)
if err != nil {
fmt.Println("Error writing success response:", err)
}
}