ICE servers config

Signed-off-by: ale <ale@manalejandro.com>

README.md

@@ -78,6 +78,53 @@ npm run start:node -- --port 8083 --bootstrap localhost:8080
 --id <id>              # Node ID (default: auto-generated UUID)
 --bootstrap <addr>     # Bootstrap node address (host:port)
 --position <pos>       # Initial ring position (default: 0)
+--ice-servers <json>   # ICE servers configuration (JSON array)
+--config <file>        # Load configuration from JSON file
+--help                 # Show help message
+```
+
+### WebRTC ICE Servers Configuration
+
+The Ring Network uses WebRTC for peer-to-peer connections. You can configure custom ICE servers (STUN/TURN) for better connectivity:
+
+#### Using Command Line
+```bash
+# With custom STUN servers
+node node.js --ice-servers '[{"urls":"stun:your-stun-server.com:19302"}]'
+
+# With TURN server for NAT traversal
+node node.js --ice-servers '[{"urls":"stun:stun.l.google.com:19302"},{"urls":"turn:your-turn-server.com:3478","username":"user","credential":"pass"}]'
+```
+
+#### Using Configuration Files
+```bash
+# Load from config file
+node node.js --config config/ice-servers-with-turn.json
+
+# For Oracle nodes
+node oracle.js --config config/ice-servers-public-turn.json
+```
+
+#### Available Configuration Examples
+- `config/ice-servers-default.json` - Default Google STUN servers
+- `config/ice-servers-with-turn.json` - Template with TURN server
+- `config/ice-servers-public-turn.json` - Public TURN servers for testing
+
+#### ICE Server Configuration Format
+```json
+{
+  "iceServers": [
+    {
+      "urls": "stun:stun.l.google.com:19302"
+    },
+    {
+      "urls": "turn:turnserver.example.com:3478",
+      "username": "your_username",
+      "credential": "your_password"
+    }
+  ]
+}
+```
 --help             # Show help message
 ```
 

config/ice-servers-default.json

@@ -0,0 +1,10 @@
+{
+  "iceServers": [
+    {
+      "urls": "stun:stun.l.google.com:19302"
+    },
+    {
+      "urls": "stun:stun1.l.google.com:19302"
+    }
+  ]
+}

config/ice-servers-public-turn.json

@@ -0,0 +1,21 @@
+{
+  "iceServers": [
+    {
+      "urls": [
+        "stun:stun.l.google.com:19302",
+        "stun:stun1.l.google.com:19302",
+        "stun:stun2.l.google.com:19302"
+      ]
+    },
+    {
+      "urls": "turn:openrelay.metered.ca:80",
+      "username": "openrelayproject",
+      "credential": "openrelayproject"
+    },
+    {
+      "urls": "turn:openrelay.metered.ca:443",
+      "username": "openrelayproject", 
+      "credential": "openrelayproject"
+    }
+  ]
+}

config/ice-servers-with-turn.json

@@ -0,0 +1,15 @@
+{
+  "iceServers": [
+    {
+      "urls": "stun:stun.l.google.com:19302"
+    },
+    {
+      "urls": "stun:stun1.l.google.com:19302"
+    },
+    {
+      "urls": "turn:turnserver.example.com:3478",
+      "username": "your_username",
+      "credential": "your_password"
+    }
+  ]
+}

node.js

@@ -2,6 +2,7 @@
 
 import { RingNode } from './src/ring-node.js';
 import chalk from 'chalk';
+import { readFileSync } from 'fs';
 
 const args = process.argv.slice(2);
 const options = {};
@@ -21,6 +22,26 @@ for (let i = 0; i < args.length; i++) {
         case '--position':
             options.ringPosition = parseInt(args[++i]);
             break;
+        case '--ice-servers':
+            try {
+                options.iceServers = JSON.parse(args[++i]);
+            } catch (error) {
+                console.error(chalk.red('Error parsing ICE servers JSON:'), error.message);
+                process.exit(1);
+            }
+            break;
+        case '--config':
+            try {
+                const configPath = args[++i];
+                const configData = JSON.parse(readFileSync(configPath, 'utf8'));
+                if (configData.iceServers) {
+                    options.iceServers = configData.iceServers;
+                }
+            } catch (error) {
+                console.error(chalk.red('Error loading config file:'), error.message);
+                process.exit(1);
+            }
+            break;
         case '--help':
             console.log(`
 ${chalk.blue('Ring Network Node')}
@@ -32,12 +53,23 @@ Options:
   --id <id>              Node ID (default: auto-generated)
   --bootstrap <addr>     Bootstrap node address (host:port)
   --position <pos>       Initial ring position (default: 0)
+  --ice-servers <json>   ICE servers configuration (JSON array)
+  --config <file>        Load configuration from JSON file
   --help                 Show this help message
 
 Examples:
   node node.js --port 8080
   node node.js --port 8081 --bootstrap localhost:8080
   node node.js --id mynode --port 8082 --bootstrap localhost:8080
+  node node.js --config config/ice-servers-with-turn.json --port 8080
+  
+ICE Servers Example:
+  --ice-servers '[{"urls":"stun:stun.l.google.com:19302"},{"urls":"turn:turn.example.com:3478","username":"user","credential":"pass"}]'
+
+Config File Example:
+  config/ice-servers-default.json - Default STUN servers
+  config/ice-servers-with-turn.json - With TURN server
+  config/ice-servers-public-turn.json - Public TURN servers
             `);
             process.exit(0);
             break;

oracle.js

@@ -2,6 +2,7 @@
 
 import { OracleNode } from './src/oracle-node.js';
 import chalk from 'chalk';
+import { readFileSync } from 'fs';
 
 const args = process.argv.slice(2);
 const options = {};
@@ -21,6 +22,26 @@ for (let i = 0; i < args.length; i++) {
         case '--position':
             options.ringPosition = parseInt(args[++i]);
             break;
+        case '--ice-servers':
+            try {
+                options.iceServers = JSON.parse(args[++i]);
+            } catch (error) {
+                console.error(chalk.red('Error parsing ICE servers JSON:'), error.message);
+                process.exit(1);
+            }
+            break;
+        case '--config':
+            try {
+                const configPath = args[++i];
+                const configData = JSON.parse(readFileSync(configPath, 'utf8'));
+                if (configData.iceServers) {
+                    options.iceServers = configData.iceServers;
+                }
+            } catch (error) {
+                console.error(chalk.red('Error loading config file:'), error.message);
+                process.exit(1);
+            }
+            break;
         case '--help':
             console.log(`
 ${chalk.yellow('Ring Network Oracle Node')}
@@ -32,12 +53,23 @@ Options:
   --id <id>              Node ID (default: auto-generated)
   --bootstrap <addr>     Bootstrap node address (host:port)
   --position <pos>       Initial ring position (default: 0)
+  --ice-servers <json>   ICE servers configuration (JSON array)
+  --config <file>        Load configuration from JSON file
   --help                 Show this help message
 
 Examples:
   node oracle.js --port 8080
   node oracle.js --port 8081 --bootstrap localhost:8080
   node oracle.js --id oracle1 --port 8082 --bootstrap localhost:8080
+  node oracle.js --config config/ice-servers-with-turn.json --port 8080
+
+ICE Servers Example:
+  --ice-servers '[{"urls":"stun:stun.l.google.com:19302"},{"urls":"turn:turn.example.com:3478","username":"user","credential":"pass"}]'
+
+Config File Example:
+  config/ice-servers-default.json - Default STUN servers
+  config/ice-servers-with-turn.json - With TURN server
+  config/ice-servers-public-turn.json - Public TURN servers
 
 Oracle Services:
   - network-analysis: Analyze network topology and health

src/ring-node.js

@@ -24,7 +24,9 @@ export class RingNode extends EventEmitter {
             }
         };
         
-        this.webrtc = new WebRTCManager(this.id);
+        this.webrtc = new WebRTCManager(this.id, {
+            iceServers: options.iceServers
+        });
         this.discoveryServer = null;
         this.knownNodes = new Map();
         this.messageHistory = new Set();

src/webrtc-manager.js

@@ -4,11 +4,26 @@ import { v4 as uuidv4 } from 'uuid';
 import wrtc from '@koush/wrtc';
 
 export class WebRTCManager extends EventEmitter {
-    constructor(nodeId) {
+    constructor(nodeId, options = {}) {
         super();
         this.nodeId = nodeId;
         this.connections = new Map();
         this.pendingConnections = new Map();
+        
+        // Configure ICE servers with defaults
+        this.iceServers = options.iceServers || [
+            { urls: 'stun:stun.l.google.com:19302' },
+            { urls: 'stun:stun1.l.google.com:19302' }
+        ];
+        
+        // Validate ICE servers configuration
+        try {
+            WebRTCManager.validateIceServers(this.iceServers);
+            console.log(`🌐 Using ${this.iceServers.length} ICE server(s) for WebRTC connections`);
+        } catch (error) {
+            console.error('Invalid ICE servers configuration:', error.message);
+            throw error;
+        }
     }
 
     async createConnection(peerId, isInitiator = false) {
@@ -23,10 +38,7 @@ export class WebRTCManager extends EventEmitter {
             trickle: false,
             wrtc: wrtc,
             config: {
-                iceServers: [
+                iceServers: this.iceServers
-                    { urls: 'stun:stun.l.google.com:19302' },
-                    { urls: 'stun:stun1.l.google.com:19302' }
-                ]
             }
         });
 
@@ -159,4 +171,32 @@ export class WebRTCManager extends EventEmitter {
         }
         this.connections.clear();
     }
+    
+    static validateIceServers(iceServers) {
+        if (!Array.isArray(iceServers)) {
+            throw new Error('ICE servers must be an array');
+        }
+        
+        for (const server of iceServers) {
+            if (!server.urls) {
+                throw new Error('Each ICE server must have a "urls" property');
+            }
+            
+            const urls = Array.isArray(server.urls) ? server.urls : [server.urls];
+            for (const url of urls) {
+                if (!url.startsWith('stun:') && !url.startsWith('turn:') && !url.startsWith('turns:')) {
+                    throw new Error(`Invalid ICE server URL: ${url}. Must start with stun:, turn:, or turns:`);
+                }
+            }
+            
+            // If it's a TURN server, it should have credentials
+            if (urls.some(url => url.startsWith('turn:') || url.startsWith('turns:'))) {
+                if (!server.username || !server.credential) {
+                    console.warn(`Warning: TURN server ${server.urls} missing username/credential`);
+                }
+            }
+        }
+        
+        return true;
+    }
 }