feat(gitea): add optional internal URL for Gitea integration

- Introduced a new field `giteaInternalUrl` in the Gitea provider settings to allow users to specify an internal URL for OAuth token exchange when Gitea runs on the same instance as Dokploy.
- Updated the Gitea provider forms to include the new field with appropriate descriptions.
- Modified the token exchange logic to utilize the internal URL if provided, enhancing connectivity options for users.
- Updated database schema to accommodate the new field.

packages/server/src/db/schema/gitea.ts

@@ -11,6 +11,7 @@ export const gitea = pgTable("gitea", {
 		.primaryKey()
 		.$defaultFn(() => nanoid()),
 	giteaUrl: text("giteaUrl").default("https://gitea.com").notNull(),
+	giteaInternalUrl: text("giteaInternalUrl"),
 	redirectUri: text("redirect_uri"),
 	clientId: text("client_id"),
 	clientSecret: text("client_secret"),
@@ -40,6 +41,7 @@ export const apiCreateGitea = createSchema.extend({
 	redirectUri: z.string().optional(),
 	name: z.string().min(1),
 	giteaUrl: z.string().min(1),
+	giteaInternalUrl: z.string().optional().nullable(),
 	giteaUsername: z.string().optional(),
 	accessToken: z.string().optional(),
 	refreshToken: z.string().optional(),
@@ -76,6 +78,7 @@ export const apiUpdateGitea = createSchema.extend({
 	name: z.string().min(1),
 	giteaId: z.string().min(1),
 	giteaUrl: z.string().min(1),
+	giteaInternalUrl: z.string().optional().nullable(),
 	giteaUsername: z.string().optional(),
 	accessToken: z.string().optional(),
 	refreshToken: z.string().optional(),

packages/server/src/db/schema/schema.dbml

@@ -471,6 +471,7 @@ table git_provider {
 table gitea {
   giteaId text [pk, not null]
   giteaUrl text [not null, default: 'https://gitea.com']
+  giteaInternalUrl text
   redirect_uri text
   client_id text
   client_secret text

packages/server/src/utils/providers/gitea.ts

@@ -49,7 +49,9 @@ export const refreshGiteaToken = async (giteaProviderId: string) => {
 		}
 
 		// Token is expired or about to expire, refresh it
-		const tokenEndpoint = `${giteaProvider.giteaUrl}/login/oauth/access_token`;
+		// Use internal URL when Gitea is on same instance as Dokploy
+		const baseUrl = giteaProvider.giteaInternalUrl || giteaProvider.giteaUrl;
+		const tokenEndpoint = `${baseUrl}/login/oauth/access_token`;
 		const params = new URLSearchParams({
 			grant_type: "refresh_token",
 			refresh_token: giteaProvider.refreshToken,