chore: aria2 related function

internal/aria2/add.go

@@ -0,0 +1,35 @@
+package aria2
+
+import (
+	"context"
+	"github.com/alist-org/alist/v3/internal/driver"
+	"github.com/alist-org/alist/v3/internal/fs"
+	"github.com/alist-org/alist/v3/internal/operations"
+	"github.com/pkg/errors"
+)
+
+func AddURI(ctx context.Context, uri []string, dstPath string, parentPath string) error {
+	// check account
+	account, actualParentPath, err := operations.GetAccountAndActualPath(parentPath)
+	if err != nil {
+		return errors.WithMessage(err, "failed get account")
+	}
+	// check is it could upload
+	if account.Config().NoUpload {
+		return errors.WithStack(fs.ErrUploadNotSupported)
+	}
+	// check path is valid
+	obj, err := operations.Get(ctx, account, actualParentPath)
+	if err != nil {
+		if !errors.Is(errors.Cause(err), driver.ErrorObjectNotFound) {
+			return errors.WithMessage(err, "failed get object")
+		}
+	} else {
+		if !obj.IsDir() {
+			// can't add to a file
+			return errors.WithStack(fs.ErrNotFolder)
+		}
+	}
+	// add aria2 task
+	return nil
+}