implement serverside RPC infrastructure

rpc.js

@@ -0,0 +1,37 @@
+/*  Use Nacl for checking signatures of messages
+
+*/
+var Nacl = require("tweetnacl");
+
+var RPC = module.exports;
+
+var pin = function (ctx, cb) { };
+var unpin = function (ctx, cb) { };
+var getHash = function (ctx, cb) { };
+var getTotalSize = function (ctx, cb) { };
+var getFileSize = function (ctx, cb) { };
+
+RPC.create = function (config, cb) {
+    // load pin-store...
+
+    console.log('loading rpc module...');
+    rpc = function (msg, respond) {
+        switch (msg[0]) {
+            case 'ECHO':
+                respond(void 0, msg);
+                break;
+            case 'PIN':
+            case 'UNPIN':
+            case 'GET_HASH':
+            case 'GET_TOTAL_SIZE':
+            case 'GET_FILE_SIZE':
+
+            default:
+                respond('UNSUPPORTED_RPC_CALL', msg);
+                break;
+        }
+    };
+
+    cb(void 0, rpc);
+};
+