feat: geofence test

package.json

@@ -84,6 +84,7 @@
     "@uniswap/sdk": "3.0.3",
     "@uniswap/sdk-core": "3.0.1",
     "@uniswap/v3-sdk": "3.8.2",
+    "@vercel/functions": "^1.5.0",
     "@walletconnect/web3-provider": "^1.8.0",
     "@web3-onboard/coinbase": "^2.4.1",
     "@web3-onboard/core": "^2.22.2",

src/middleware.ts

@@ -1,3 +1,4 @@
+import { geolocation } from '@vercel/functions'
 import { getLogger } from 'lib/logger'
 import { NextRequest, NextResponse } from 'next/server'
 import { fetchProjectIdForHandle } from 'pages/api/juicebox/project/[projectHandle]'
@@ -7,6 +8,8 @@ const HANDLE_REGEX = new RegExp(/\/@([^/]+).*/)
 
 const logger = getLogger('middleware/page')
 
+const GEOFENCED_PROJECT_IDS = [{ projectId: 64, blockedCountries: ['US'] }]
+
 export async function middleware(request: NextRequest) {
   logger.info('middleware request', { pathname: request.nextUrl.pathname })
   if (!request.nextUrl.pathname.startsWith('/@')) return
@@ -44,6 +47,27 @@ export async function middleware(request: NextRequest) {
     return NextResponse.rewrite(url)
   }
 
+  /**
+   * Geofence check
+   */
+  if (GEOFENCED_PROJECT_IDS.some(p => p.projectId === projectId)) {
+    const country = geolocation(request).country
+    if (
+      country &&
+      GEOFENCED_PROJECT_IDS.find(
+        p => p.projectId === projectId,
+      )?.blockedCountries.includes(country)
+    ) {
+      logger.info('Geofenced project', {
+        originalPathname: request.nextUrl.pathname,
+        newPathname: '/404',
+        handle: handleDecoded,
+      })
+      url.pathname = '/404'
+      return NextResponse.rewrite(url)
+    }
+  }
+
   url.pathname = `/v2/p/${projectId}${trailingPath ? `/${trailingPath}` : ''}`
 
   logger.info('Rewriting to project route', {

yarn.lock

@@ -5069,6 +5069,11 @@
     "@uniswap/v3-core" "1.0.0"
     "@uniswap/v3-periphery" "^1.0.1"
 
+"@vercel/functions@^1.5.0":
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/@vercel/functions/-/functions-1.5.0.tgz#a0f97bd6900f8a2acc115cffaeb5bbcba17c824a"
+  integrity sha512-ub3ptVeOsx8UPgiTv9+rpQJqmF7VG8QIzguBZo0E0VRAyJliB8bt1ooB9Wrh3333dKzMNS8NMe3iFtf6OPUP3A==
+
 "@vladfrangu/async_event_emitter@^2.2.1":
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/@vladfrangu/async_event_emitter/-/async_event_emitter-2.2.2.tgz#84c5a3f8d648842cec5cc649b88df599af32ed88"