working file sharing

packages/httpRequest/file.go

@@ -0,0 +1,100 @@
+package httpRequest
+
+import (
+	"net/http"
+	"strings"
+
+	"go-socket/packages/convertions"
+	"go-socket/packages/globals"
+	"go-socket/packages/minio"
+)
+
+func HandleFileUpload(response http.ResponseWriter, request *http.Request) {
+	if !postValidCheckWithResponseOnFail(&response, request, true) {
+		return
+	}
+	ctx := request.Context()
+
+	user, err := getUserByToken(ctx, request.Header.Get("token"))
+	if err != nil {
+		http.Error(response, "invalid token", http.StatusUnauthorized)
+		return
+	}
+
+	request.Body = http.MaxBytesReader(response, request.Body, int64(globals.MaxPostWithFileBytes))
+
+	if err = request.ParseMultipartForm(int64(globals.MaxPostBytes)); err != nil {
+		http.Error(response, "invalid multipart form", http.StatusBadRequest)
+		return
+	}
+
+	connectionId, err := convertions.ConvertStringUuid(request.FormValue("connectionid"))
+	if err != nil {
+		http.Error(response, "invalid connectionid", http.StatusBadRequest)
+		return
+	}
+	_, ok := user.Connections[connectionId]
+	if !ok {
+		http.Error(response, "no such connection", http.StatusUnauthorized)
+		return
+	}
+
+	file, header, err := request.FormFile("file")
+	if err != nil {
+		http.Error(response, "missing file", http.StatusBadRequest)
+		return
+	}
+	defer file.Close()
+
+	contentType := header.Header.Get("Content-Type")
+	key := minio.GetKey(connectionId, contentType)
+
+	if err = minio.Upload(ctx, key, file, header.Size, contentType, map[string]string{
+		"originalName": header.Filename,
+		"uploaderId":   user.Id.String(),
+	}); err != nil {
+		http.Error(response, "upload failed", http.StatusInternalServerError)
+		return
+	}
+
+	response.WriteHeader(http.StatusCreated)
+	response.Write([]byte(key))
+}
+
+func HandleFileDownload(response http.ResponseWriter, request *http.Request) {
+	if !postValidCheckWithResponseOnFail(&response, request, false) {
+		return
+	}
+	ctx := request.Context()
+
+	user, err := getUserByToken(ctx, request.Header.Get("token"))
+	if err != nil {
+		http.Error(response, "invalid token", http.StatusUnauthorized)
+		return
+	}
+
+	connectionId, err := convertions.ConvertStringUuid(request.FormValue("connectionid"))
+	if err != nil {
+		http.Error(response, "invalid connectionid", http.StatusBadRequest)
+		return
+	}
+	if _, ok := user.Connections[connectionId]; !ok {
+		http.Error(response, "no such connection", http.StatusUnauthorized)
+		return
+	}
+
+	key := request.FormValue("key")
+	if !strings.HasPrefix(key, connectionId.String()+"/") {
+		http.Error(response, "no such file", http.StatusUnauthorized)
+		return
+	}
+
+	url, err := minio.GetDownloadUrl(ctx, key)
+	if err != nil {
+		http.Error(response, "no such file", http.StatusUnauthorized)
+		return
+	}
+
+	response.WriteHeader(http.StatusOK)
+	response.Write([]byte(url.String()))
+}