Merge pull request #74 from crux-bphc/add-unenroll-endpoint

Add unenroll endpoint

package.json

@@ -18,16 +18,17 @@
     "ts-node": "10.7.0"
   },
   "dependencies": {
-    "@types/cors": "^2.8.13",
     "@types/body-parser": "^1.19.2",
     "@types/cookie-parser": "^1.4.3",
+    "@types/cors": "^2.8.13",
     "@types/express": "^4.17.17",
     "@types/jest": "^29.5.2",
     "@types/node": "^16.11.10",
     "@types/supertest": "^2.0.12",
     "body-parser": "^1.19.1",
     "cookie-parser": "^1.4.6",
     "cors": "^2.8.5",
+    "cross-fetch": "^4.0.0",
     "dotenv": "^16.3.1",
     "express": "^4.17.2",
     "openid-client": "^5.4.2",

src/controllers/user/cmsFunctions.ts

@@ -0,0 +1,41 @@
+import { Request, Response } from "express";
+import { validate } from "../../middleware/zodValidateRequest";
+import { z } from "zod";
+import {
+  namedIntegerType,
+  namedNonEmptyStringType,
+} from "../../types/zodFieldTypes";
+import fetch from "cross-fetch";
+
+const unenrollDataSchema = z.object({
+  body: z.object({
+    enrollID: namedIntegerType("enrollID"),
+    sesskey: namedNonEmptyStringType("sesskey"),
+    cookie: namedNonEmptyStringType("cookie"),
+  }),
+});
+
+export const unenrollValidator = validate(unenrollDataSchema);
+
+export const unenroll = async (req: Request, res: Response) => {
+  const enrollID: number = req.body.enrollID;
+  const sesskey: string = req.body.sesskey;
+  const cookie: string = req.body.cookie;
+
+  try {
+    const unenrolResponse = await fetch(
+      `https://cms.bits-hyderabad.ac.in/enrol/self/unenrolself.php?confirm=1&enrolid=${enrollID}&sesskey=${sesskey}`,
+      {
+        method: "GET",
+        headers: {
+          cookie: `MoodleSession=${cookie};`,
+        },
+      }
+    );
+    return res.status(unenrolResponse.status).end();
+  } catch (err: any) {
+    // will replace the console.log with a logger when we have one
+    console.log("Error unenrolling from course: ", err.message);
+    return res.status(500).json({ message: "Internal Server Error" });
+  }
+};

src/routers/userRouter.ts

@@ -5,10 +5,12 @@ import {
   getUserDetailsValidator,
 } from "../controllers/user/getUserDetails";
 import { authenticate } from "../middleware/auth";
+import { unenroll, unenrollValidator } from "../controllers/user/cmsFunctions";
 
 const userRouter = express.Router();
 
 userRouter.get("/:id?", authenticate, getUserDetailsValidator, getUserDetails);
 userRouter.post("/edit", authenticate, editUserValidator, editUser);
+userRouter.post("/unenroll", authenticate, unenrollValidator, unenroll);
 
 export default userRouter;