Initial commit

Once again a weird place to commit, I have already done a lot of work, but I am just bad at using git, okay.

example-app/server/api/pow/challenge.post.ts

@@ -0,0 +1,45 @@
+import { defineEventHandler } from 'h3'
+import { validate_challenge } from '@impost/lib/validator';
+import * as z from 'zod';
+import { outstandingChallenges } from '~~/server/utils/pow';
+
+const challengeSchema = z.object({
+    challenge: z.string(),
+    nonce: z.string()
+})
+
+// post handler that takes in the challenge, and the nonce
+export default defineEventHandler(async (event) => {
+    const body = await readValidatedBody(event, challengeSchema.safeParse);
+
+    if (!body.success) {
+        throw createError({
+            statusCode: 400,
+            statusMessage: 'Validation failed'
+        })
+    }
+
+    let target = body.data.challenge;
+    let nonce = body.data.nonce;
+
+    // check if the challenge is valid
+    let challenge_valid = await validate_challenge(outstandingChallenges.get(target)!.challenge, {
+        challenge: target,
+        nonce: nonce
+    });
+
+    if (challenge_valid) {
+        // clear the challenge
+        clearTimeout(outstandingChallenges.get(target)!.timeout);
+        outstandingChallenges.delete(target);
+
+        return {
+            message: 'Challenge solved'
+        };
+    }
+
+    throw createError({
+        statusCode: 400,
+        statusMessage: 'Challenge is not valid'
+    })
+})