Support proxies for PeerTube (#4346)

* Updated with latest code

* Updated Support proxies for PeerTube

* Support Proxies for PeerTube (Updated with change request)

* Cleanup proxy PR

Co-authored-by: Chocobozzz <me@florianbigard.com>

shared/extra-utils/mock-servers/mock-proxy.ts

@@ -0,0 +1,27 @@
+
+import { createServer, Server } from 'http'
+import * as proxy from 'proxy'
+import { randomInt } from '@shared/core-utils'
+
+class MockProxy {
+  private server: Server
+
+  initialize () {
+    return new Promise<number>(res => {
+      const port = 42501 + randomInt(1, 100)
+
+      this.server = proxy(createServer())
+      this.server.listen(port, () => res(port))
+    })
+  }
+
+  terminate () {
+    if (this.server) this.server.close()
+  }
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  MockProxy
+}