iOS client for vk-turn-proxy — a WireGuard VPN tunnel that routes traffic through VK's TURN infrastructure.

• Native iOS app with Network Extension (PacketTunnelProvider)
• Go-based WireGuard + DTLS/TURN proxy compiled as XCFramework
• Automatic VK Smart Captcha solving (SHA-256 Proof-of-Work)
• WebView fallback for captcha when PoW is rejected
• Self-healing tunnel: survives iOS sleep/wake, WiFi↔LTE handoff
• Watchdog-based dead tunnel detection (no reliance on iOS sleep()/wake() callbacks)
• Staggered reconnection to avoid TURN Allocation Quota errors
• Randomized identity (User-Agent + Russian names) per credential fetch

VKTurnProxy/          # iOS app (SwiftUI) + PacketTunnel extension
WireGuardBridge/      # Go → C bridge, builds XCFramework via Makefile
pkg/proxy/            # Go proxy: DTLS+TURN tunnel, VK creds, PoW captcha solver
go.mod, go.sum        # Go module dependencies

TestFlight

• Xcode 15+
• Go 1.21+ (via Homebrew: brew install go)
• Apple Developer account with Network Extension entitlement

1. Build the Go XCFramework:

   cd WireGuardBridge
   make xcframework

2. Open VKTurnProxy/VKTurnProxy.xcodeproj in Xcode.

3. Set your development team and bundle identifiers.

4. Build and run on a physical iOS device (simulator won't work for Network Extension).

In the app's Settings screen, configure:

• WireGuard Config — standard WireGuard config (Interface + Peer)
• VK Link — VK call invite link (e.g., https://vk.com/call/join/...)
• Proxy Config — JSON with peer_addr, connection count, DTLS/UDP options

Based on vk-turn-proxy by cacggghp.

MIT