Add cover_image API

Fixes #360

app/blueprints/api/support.py

@@ -19,7 +19,7 @@ from flask import jsonify, abort, make_response, url_for, current_app
 
 from app.logic.packages import do_edit_package
 from app.logic.releases import LogicError, do_create_vcs_release, do_create_zip_release
-from app.logic.screenshots import do_create_screenshot, do_order_screenshots
+from app.logic.screenshots import do_create_screenshot, do_order_screenshots, do_set_cover_image
 from app.models import APIToken, Package, MinetestRelease, PackageScreenshot
 
 
@@ -94,6 +94,17 @@ def api_order_screenshots(token: APIToken, package: Package, order: [any]):
 	})
 
 
+def api_set_cover_image(token: APIToken, package: Package, cover_image):
+	if not token.canOperateOnPackage(package):
+		error(403, "API token does not have access to the package")
+
+	guard(do_set_cover_image)(token.owner, package, cover_image)
+
+	return jsonify({
+		"success": True
+	})
+
+
 def api_edit_package(token: APIToken, package: Package, data: dict, reason: str = "API"):
 	if not token.canOperateOnPackage(package):
 		error(403, "API token does not have access to the package")