Adding upstream version 0.28.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

apis/backup.go

@@ -0,0 +1,155 @@
+package apis
+
+import (
+	"context"
+	"net/http"
+	"path/filepath"
+	"time"
+
+	"github.com/pocketbase/pocketbase/core"
+	"github.com/pocketbase/pocketbase/tools/router"
+	"github.com/pocketbase/pocketbase/tools/routine"
+	"github.com/pocketbase/pocketbase/tools/types"
+	"github.com/spf13/cast"
+)
+
+// bindBackupApi registers the file api endpoints and the corresponding handlers.
+func bindBackupApi(app core.App, rg *router.RouterGroup[*core.RequestEvent]) {
+	sub := rg.Group("/backups")
+	sub.GET("", backupsList).Bind(RequireSuperuserAuth())
+	sub.POST("", backupCreate).Bind(RequireSuperuserAuth())
+	sub.POST("/upload", backupUpload).Bind(BodyLimit(0), RequireSuperuserAuth())
+	sub.GET("/{key}", backupDownload) // relies on superuser file token
+	sub.DELETE("/{key}", backupDelete).Bind(RequireSuperuserAuth())
+	sub.POST("/{key}/restore", backupRestore).Bind(RequireSuperuserAuth())
+}
+
+type backupFileInfo struct {
+	Modified types.DateTime `json:"modified"`
+	Key      string         `json:"key"`
+	Size     int64          `json:"size"`
+}
+
+func backupsList(e *core.RequestEvent) error {
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	fsys, err := e.App.NewBackupsFilesystem()
+	if err != nil {
+		return e.BadRequestError("Failed to load backups filesystem.", err)
+	}
+	defer fsys.Close()
+
+	fsys.SetContext(ctx)
+
+	backups, err := fsys.List("")
+	if err != nil {
+		return e.BadRequestError("Failed to retrieve backup items. Raw error: \n"+err.Error(), nil)
+	}
+
+	result := make([]backupFileInfo, len(backups))
+
+	for i, obj := range backups {
+		modified, _ := types.ParseDateTime(obj.ModTime)
+
+		result[i] = backupFileInfo{
+			Key:      obj.Key,
+			Size:     obj.Size,
+			Modified: modified,
+		}
+	}
+
+	return e.JSON(http.StatusOK, result)
+}
+
+func backupDownload(e *core.RequestEvent) error {
+	fileToken := e.Request.URL.Query().Get("token")
+
+	authRecord, err := e.App.FindAuthRecordByToken(fileToken, core.TokenTypeFile)
+	if err != nil || !authRecord.IsSuperuser() {
+		return e.ForbiddenError("Insufficient permissions to access the resource.", err)
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Minute)
+	defer cancel()
+
+	fsys, err := e.App.NewBackupsFilesystem()
+	if err != nil {
+		return e.InternalServerError("Failed to load backups filesystem.", err)
+	}
+	defer fsys.Close()
+
+	fsys.SetContext(ctx)
+
+	key := e.Request.PathValue("key")
+
+	return fsys.Serve(
+		e.Response,
+		e.Request,
+		key,
+		filepath.Base(key), // without the path prefix (if any)
+	)
+}
+
+func backupDelete(e *core.RequestEvent) error {
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	fsys, err := e.App.NewBackupsFilesystem()
+	if err != nil {
+		return e.InternalServerError("Failed to load backups filesystem.", err)
+	}
+	defer fsys.Close()
+
+	fsys.SetContext(ctx)
+
+	key := e.Request.PathValue("key")
+
+	if key != "" && cast.ToString(e.App.Store().Get(core.StoreKeyActiveBackup)) == key {
+		return e.BadRequestError("The backup is currently being used and cannot be deleted.", nil)
+	}
+
+	if err := fsys.Delete(key); err != nil {
+		return e.BadRequestError("Invalid or already deleted backup file. Raw error: \n"+err.Error(), nil)
+	}
+
+	return e.NoContent(http.StatusNoContent)
+}
+
+func backupRestore(e *core.RequestEvent) error {
+	if e.App.Store().Has(core.StoreKeyActiveBackup) {
+		return e.BadRequestError("Try again later - another backup/restore process has already been started.", nil)
+	}
+
+	key := e.Request.PathValue("key")
+
+	existsCtx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	fsys, err := e.App.NewBackupsFilesystem()
+	if err != nil {
+		return e.InternalServerError("Failed to load backups filesystem.", err)
+	}
+	defer fsys.Close()
+
+	fsys.SetContext(existsCtx)
+
+	if exists, err := fsys.Exists(key); !exists {
+		return e.BadRequestError("Missing or invalid backup file.", err)
+	}
+
+	routine.FireAndForget(func() {
+		// give some optimistic time to write the response before restarting the app
+		time.Sleep(1 * time.Second)
+
+		// wait max 10 minutes to fetch the backup
+		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Minute)
+		defer cancel()
+
+		if err := e.App.RestoreBackup(ctx, key); err != nil {
+			e.App.Logger().Error("Failed to restore backup", "key", key, "error", err.Error())
+		}
+	})
+
+	return e.NoContent(http.StatusNoContent)
+}