feat: implement whitelist for self-hosted instances (#3939)

* whitelist for username based endpoints

* added gist whitelist

* review

* fix

---------

Co-authored-by: Alexandr <qwerty541zxc@gmail.com>

tests/api.test.js

@@ -307,7 +307,11 @@ describe("Test /api/", () => {
 
     expect(res.setHeader).toBeCalledWith("Content-Type", "image/svg+xml");
     expect(res.send).toBeCalledWith(
-      renderError("Something went wrong", "This username is blacklisted"),
+      renderError(
+        "This username is blacklisted",
+        "Please deploy your own instance",
+        { show_repo_link: false },
+      ),
     );
   });
 

tests/pin.test.js

@@ -156,7 +156,11 @@ describe("Test /api/pin", () => {
 
     expect(res.setHeader).toBeCalledWith("Content-Type", "image/svg+xml");
     expect(res.send).toBeCalledWith(
-      renderError("Something went wrong", "This username is blacklisted"),
+      renderError(
+        "This username is blacklisted",
+        "Please deploy your own instance",
+        { show_repo_link: false },
+      ),
     );
   });
 

tests/top-langs.test.js

@@ -184,7 +184,11 @@ describe("Test /api/top-langs", () => {
 
     expect(res.setHeader).toBeCalledWith("Content-Type", "image/svg+xml");
     expect(res.send).toBeCalledWith(
-      renderError("Something went wrong", "This username is blacklisted"),
+      renderError(
+        "This username is blacklisted",
+        "Please deploy your own instance",
+        { show_repo_link: false },
+      ),
     );
   });