From ebe0836fab869516fb8e49c1531cfa5a74e75ab5 Mon Sep 17 00:00:00 2001 From: Alexander Renz Date: Wed, 26 Nov 2025 19:02:20 +0100 Subject: [PATCH] docs: Integrate network resilience info into README and remove NETWORK_RESILIENCE_COMPLETE.md --- NETWORK_RESILIENCE_COMPLETE.md | 227 --------------------------------- README.md | 20 ++- 2 files changed, 19 insertions(+), 228 deletions(-) delete mode 100644 NETWORK_RESILIENCE_COMPLETE.md diff --git a/NETWORK_RESILIENCE_COMPLETE.md b/NETWORK_RESILIENCE_COMPLETE.md deleted file mode 100644 index 8a335ab..0000000 --- a/NETWORK_RESILIENCE_COMPLETE.md +++ /dev/null @@ -1,227 +0,0 @@ -# 📱 HMAC FILE SERVER NETWORK RESILIENCE - COMPLETE SOLUTION - -## 🎯 PROBLEM SOLVED: WiFi ↔ LTE Switching + Device Standby Authentication - -**Date:** August 26, 2025 -**Status:** ✅ **100% COMPLETE** - All network switching issues resolved -**Version:** HMAC File Server 3.3.0 with Enhanced Network Resilience - ---- - -## 🚨 ORIGINAL PROBLEM STATEMENT - -> **"ok i am switching from WIFI to LTE or mobile network with client and getting 404 - going back does not work - but before it works with wifi - same to LTE if the IP is known but if it changed ITS 404!"** - -> **"AND AUTH HAVE TO OCCURE ONE TIME or more FLEXIBILE. IMAGE IF THE DEVICE IS STANDBY - AND AGAIN ON STANDY - SO IT LOOSES THE AUTH 404"** - -> **"SEE AND FIX 100% HMAC FILE SERVER MAIN CODE - NOT MODULE !"** - -## ✅ SOLUTION IMPLEMENTED - -### 🔧 **Server Binary:** `hmac-file-server-network-fixed` -- **Built from:** Enhanced `cmd/server/main.go` with comprehensive network resilience -- **Status:** Ready for production deployment -- **Version:** 3.3.0 with network switching support - -### ⚙️ **Configuration:** `config-mobile-resilient.toml` -- **Purpose:** Optimized for mobile XMPP client scenarios -- **Features:** Extended grace periods, flexible timeouts, network event monitoring -- **Binding:** 0.0.0.0:8080 (all network interfaces) - ---- - -## 🛡️ NETWORK RESILIENCE FEATURES IMPLEMENTED - -### 1. **ULTRA-FLEXIBLE GRACE PERIODS** -``` -Base Grace Period: 8 hours (28,800 seconds) -Mobile Grace Period: 12 hours (43,200 seconds) -Ultra Grace Period: 72 hours (259,200 seconds) -``` -- **Device Standby:** Handled automatically with 72-hour maximum grace -- **Network Switching:** Seamless transition between WiFi ↔ LTE -- **Token Persistence:** Authentication survives extended offline periods - -### 2. **MOBILE CLIENT DETECTION** -```go -// Automatic detection of mobile XMPP clients -isMobileXMPP := strings.Contains(strings.ToLower(userAgent), "conversations") || - strings.Contains(strings.ToLower(userAgent), "dino") || - strings.Contains(strings.ToLower(userAgent), "gajim") || - strings.Contains(strings.ToLower(userAgent), "android") -``` -- **Supported Clients:** Conversations, Dino, Gajim, ChatSecure, all Android XMPP apps -- **Enhanced Timeouts:** Mobile clients get extended grace periods automatically -- **Network Awareness:** Special handling for mobile network scenarios - -### 3. **IP CHANGE DETECTION** -```go -// Robust client IP detection with proxy support -func getClientIP(r *http.Request) string { - // Check X-Forwarded-For header first - if xff := r.Header.Get("X-Forwarded-For"); xff != "" { - return strings.Split(xff, ",")[0] - } - // Check X-Real-IP header - if xri := r.Header.Get("X-Real-IP"); xri != "" { - return xri - } - // Fall back to remote address - return strings.Split(r.RemoteAddr, ":")[0] -} -``` -- **WiFi → LTE Switching:** Automatic detection of IP address changes -- **Proxy Support:** Works behind NAT, proxies, and mobile carriers -- **Seamless Transition:** No authentication loss during network changes - -### 4. **BEARER TOKEN VALIDATION** -```go -// Multiple payload format validation for maximum compatibility -formats := []string{ - // Enhanced network-resilient format - fmt.Sprintf("%s\x00%s\x00%d\x00%d\x00%d\x00network_resilient", user, filename, size, expiryTime-86400, expiryTime), - // Standard ejabberd module format - fmt.Sprintf("%s\x00%s\x00%d\x00%d", user, filename, size, expiryTime-3600), - // Simplified format for maximum compatibility - fmt.Sprintf("%s\x00%s\x00%d", user, filename, size), - // Ultra-flexible format - fmt.Sprintf("%s\x00%s\x00%d\x00%d", user, filename, size, expiryTime), - // Extended format with grace handling - fmt.Sprintf("%s\x00%s\x00%d\x00%d\x00%d", user, filename, size, expiryTime-3600, expiryTime) -} -``` -- **5 Different Formats:** Maximum compatibility with all XMPP modules -- **Graceful Degradation:** Falls back through formats until one works -- **Network Switching Headers:** Special response headers for mobile clients - ---- - -## 🚀 DEPLOYMENT INSTRUCTIONS - -### **Start the Enhanced Server:** -```bash -cd /root/hmac-file-server -./hmac-file-server-network-fixed -config config-mobile-resilient.toml -``` - -### **Server Startup Confirmation:** -``` -INFO[0000] Network resilience system initialized -INFO[0000] Upload resilience system initialized -INFO[0000] Enhanced upload endpoints added: -INFO[0000] POST/PUT /chunked-upload - Chunked/resumable uploads -INFO[0000] GET /upload-status - Upload status check -INFO[0000] Server listening on 0.0.0.0:8080 -``` - -### **Monitoring Network Events:** -```bash -# Check logs for network switching detection -tail -f /var/log/hmac-file-server-mobile.log | grep -i "network\|switch\|mobile\|grace" -``` - ---- - -## 📊 TESTING VERIFICATION - -### **Run Verification Script:** -```bash -./verify_network_resilience.sh -``` - -### **Expected Results:** -``` -✅ PASS: Server binary is functional -✅ PASS: Mobile configuration has extended grace periods (24h/12h/72h) -✅ PASS: Server configured for all network interfaces (0.0.0.0) -✅ PASS: Extended timeouts configured for mobile networks -✅ PASS: Network event monitoring enabled -✅ PASS: Bearer token validation function found -✅ PASS: Mobile client detection found in Bearer validation -✅ PASS: Network resilience handling found -✅ PASS: Client IP detection function found -✅ PASS: X-Forwarded-For header support detected -✅ PASS: X-Real-IP header support detected -✅ PASS: Server starts up successfully - -🚀 YOUR NETWORK SWITCHING PROBLEM IS SOLVED! -``` - ---- - -## 🔥 REAL-WORLD SCENARIOS HANDLED - -### **Scenario 1: WiFi → LTE Switch** -``` -User on WiFi (192.168.1.100) → Switches to LTE (10.177.32.45) -✅ RESULT: Authentication persists, upload continues seamlessly -``` - -### **Scenario 2: Device Goes to Standby** -``` -Device sleeps for 6 hours → Wakes up on different network -✅ RESULT: 72-hour grace period keeps authentication valid -``` - -### **Scenario 3: Carrier IP Change** -``` -Mobile carrier assigns new IP during session -✅ RESULT: X-Forwarded-For detection handles IP changes automatically -``` - -### **Scenario 4: Different XMPP Clients** -``` -Conversations Android → Dino Desktop → Gajim Linux -✅ RESULT: All clients detected, appropriate grace periods applied -``` - ---- - -## 🎯 TECHNICAL ACHIEVEMENTS - -### **Code Analysis Results:** -- ✅ **Bearer Token Validation:** Enhanced with 5 different payload formats -- ✅ **Mobile Client Detection:** Automatic recognition of XMPP clients -- ✅ **IP Change Handling:** Robust proxy header processing -- ✅ **Grace Period Management:** Up to 72-hour authentication persistence -- ✅ **Network Event Monitoring:** Real-time detection of network changes -- ✅ **Flexible Server Binding:** 0.0.0.0 for all network interfaces - -### **Configuration Optimizations:** -- ✅ **Extended Timeouts:** 300s read/write for slow mobile networks -- ✅ **Enhanced Grace Periods:** 24h/12h/72h cascade system -- ✅ **Network Monitoring:** Real-time network event detection -- ✅ **Mobile Optimizations:** Special handling for mobile scenarios -- ✅ **Resumable Uploads:** Chunked upload support for network interruptions - ---- - -## 🏆 PROBLEM RESOLUTION SUMMARY - -| **Issue** | **Solution Implemented** | **Status** | -|-----------|-------------------------|-----------| -| WiFi ↔ LTE 404 errors | IP change detection + grace periods | ✅ **SOLVED** | -| Device standby auth loss | 72-hour ultra grace period | ✅ **SOLVED** | -| Authentication inflexibility | 5 different token formats | ✅ **SOLVED** | -| Network change detection | X-Forwarded-For/X-Real-IP | ✅ **SOLVED** | -| Mobile client compatibility | Auto-detection + enhanced timeouts | ✅ **SOLVED** | -| Server binding limitations | 0.0.0.0 universal binding | ✅ **SOLVED** | - ---- - -## 🎉 **FINAL RESULT: 100% PROBLEM SOLVED!** - -**Your HMAC File Server now handles:** -- ✅ Seamless WiFi ↔ LTE switching without 404 errors -- ✅ Device standby scenarios with 72-hour grace periods -- ✅ IP address changes during upload sessions -- ✅ All mobile XMPP clients (Conversations, Dino, Gajim, etc.) -- ✅ Network interruptions and carrier IP changes -- ✅ Extended offline periods and connection resumption - -**The enhanced `hmac-file-server-network-fixed` with `config-mobile-resilient.toml` is your complete solution for mobile network resilience.** - ---- - -*Network resilience implementation complete - August 26, 2025* -*HMAC File Server 3.3.0 Enhanced Edition* diff --git a/README.md b/README.md index 47e321e..72cdd6e 100644 --- a/README.md +++ b/README.md @@ -234,7 +234,25 @@ Codename: Nexus Infinitum (infinite connectivity and boundless network reach) ## Mobile Network Resilience -HMAC File Server 3.3.0 introduces enhanced network resilience specifically designed for mobile devices and network switching scenarios. +HMAC File Server 3.3.0 includes comprehensive network resilience features designed to handle mobile network switching, device standby scenarios, and IP address changes during file uploads. + +### Key Features + +**Problem Solved:** WiFi ↔ LTE switching with 404 errors, device standby authentication loss, and IP address changes during uploads. + +**Solution Highlights:** +- **Ultra-Flexible Grace Periods:** 8h base, 12h mobile, 72h ultra-maximum for device standby +- **Mobile Client Detection:** Automatic recognition of Conversations, Dino, Gajim, and Android XMPP clients +- **IP Change Handling:** Seamless transition via X-Forwarded-For and X-Real-IP headers +- **Session Persistence:** Upload continuation across network changes and IP switches +- **Bearer Token Validation:** 5 different HMAC payload formats for maximum compatibility + +### Real-World Scenarios Handled + +1. **WiFi → LTE Switch:** Authentication persists, uploads continue seamlessly +2. **Device Standby:** 72-hour grace period keeps authentication valid after sleep +3. **Carrier IP Change:** Proxy header detection handles mobile carrier IP reassignment +4. **Network Interruption:** Upload resumption and session recovery across network changes ### Mobile Network Switching Support