first commit

server/router/api/v1/resource_name.go

@@ -0,0 +1,158 @@
+package v1
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/pkg/errors"
+
+	"github.com/usememos/memos/internal/util"
+)
+
+const (
+	InstanceSettingNamePrefix  = "instance/settings/"
+	UserNamePrefix             = "users/"
+	MemoNamePrefix             = "memos/"
+	AttachmentNamePrefix       = "attachments/"
+	ReactionNamePrefix         = "reactions/"
+	InboxNamePrefix            = "inboxes/"
+	IdentityProviderNamePrefix = "identity-providers/"
+	ActivityNamePrefix         = "activities/"
+	WebhookNamePrefix          = "webhooks/"
+)
+
+// GetNameParentTokens returns the tokens from a resource name.
+func GetNameParentTokens(name string, tokenPrefixes ...string) ([]string, error) {
+	parts := strings.Split(name, "/")
+	if len(parts) != 2*len(tokenPrefixes) {
+		return nil, errors.Errorf("invalid request %q", name)
+	}
+
+	var tokens []string
+	for i, tokenPrefix := range tokenPrefixes {
+		if fmt.Sprintf("%s/", parts[2*i]) != tokenPrefix {
+			return nil, errors.Errorf("invalid prefix %q in request %q", tokenPrefix, name)
+		}
+		if parts[2*i+1] == "" {
+			return nil, errors.Errorf("invalid request %q with empty prefix %q", name, tokenPrefix)
+		}
+		tokens = append(tokens, parts[2*i+1])
+	}
+	return tokens, nil
+}
+
+func ExtractInstanceSettingKeyFromName(name string) (string, error) {
+	const prefix = "instance/settings/"
+	if !strings.HasPrefix(name, prefix) {
+		return "", errors.Errorf("invalid instance setting name: expected prefix %q, got %q", prefix, name)
+	}
+
+	settingKey := strings.TrimPrefix(name, prefix)
+	if settingKey == "" {
+		return "", errors.Errorf("invalid instance setting name: empty setting key in %q", name)
+	}
+
+	// Ensure there are no additional path segments
+	if strings.Contains(settingKey, "/") {
+		return "", errors.Errorf("invalid instance setting name: setting key cannot contain '/' in %q", name)
+	}
+
+	return settingKey, nil
+}
+
+// ExtractUserIDFromName returns the uid from a resource name.
+func ExtractUserIDFromName(name string) (int32, error) {
+	tokens, err := GetNameParentTokens(name, UserNamePrefix)
+	if err != nil {
+		return 0, err
+	}
+	id, err := util.ConvertStringToInt32(tokens[0])
+	if err != nil {
+		return 0, errors.Errorf("invalid user ID %q", tokens[0])
+	}
+	return id, nil
+}
+
+// extractUserIdentifierFromName extracts the identifier (ID or username) from a user resource name.
+// Supports: "users/101" or "users/steven"
+// Returns the identifier string (e.g., "101" or "steven").
+func extractUserIdentifierFromName(name string) string {
+	tokens, err := GetNameParentTokens(name, UserNamePrefix)
+	if err != nil || len(tokens) == 0 {
+		return ""
+	}
+	return tokens[0]
+}
+
+// ExtractMemoUIDFromName returns the memo UID from a resource name.
+// e.g., "memos/uuid" -> "uuid".
+func ExtractMemoUIDFromName(name string) (string, error) {
+	tokens, err := GetNameParentTokens(name, MemoNamePrefix)
+	if err != nil {
+		return "", err
+	}
+	id := tokens[0]
+	return id, nil
+}
+
+// ExtractAttachmentUIDFromName returns the attachment UID from a resource name.
+func ExtractAttachmentUIDFromName(name string) (string, error) {
+	tokens, err := GetNameParentTokens(name, AttachmentNamePrefix)
+	if err != nil {
+		return "", err
+	}
+	id := tokens[0]
+	return id, nil
+}
+
+// ExtractMemoReactionIDFromName returns the memo UID and reaction ID from a resource name.
+// e.g., "memos/abc/reactions/123" -> ("abc", 123).
+func ExtractMemoReactionIDFromName(name string) (string, int32, error) {
+	tokens, err := GetNameParentTokens(name, MemoNamePrefix, ReactionNamePrefix)
+	if err != nil {
+		return "", 0, err
+	}
+	memoUID := tokens[0]
+	reactionID, err := util.ConvertStringToInt32(tokens[1])
+	if err != nil {
+		return "", 0, errors.Errorf("invalid reaction ID %q", tokens[1])
+	}
+	return memoUID, reactionID, nil
+}
+
+// ExtractInboxIDFromName returns the inbox ID from a resource name.
+func ExtractInboxIDFromName(name string) (int32, error) {
+	tokens, err := GetNameParentTokens(name, InboxNamePrefix)
+	if err != nil {
+		return 0, err
+	}
+	id, err := util.ConvertStringToInt32(tokens[0])
+	if err != nil {
+		return 0, errors.Errorf("invalid inbox ID %q", tokens[0])
+	}
+	return id, nil
+}
+
+func ExtractIdentityProviderIDFromName(name string) (int32, error) {
+	tokens, err := GetNameParentTokens(name, IdentityProviderNamePrefix)
+	if err != nil {
+		return 0, err
+	}
+	id, err := util.ConvertStringToInt32(tokens[0])
+	if err != nil {
+		return 0, errors.Errorf("invalid identity provider ID %q", tokens[0])
+	}
+	return id, nil
+}
+
+func ExtractActivityIDFromName(name string) (int32, error) {
+	tokens, err := GetNameParentTokens(name, ActivityNamePrefix)
+	if err != nil {
+		return 0, err
+	}
+	id, err := util.ConvertStringToInt32(tokens[0])
+	if err != nil {
+		return 0, errors.Errorf("invalid activity ID %q", tokens[0])
+	}
+	return id, nil
+}