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@ -3,11 +3,7 @@ var Nacl = require("tweetnacl"); |
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var RPC = module.exports; |
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var pin = function (ctx, cb) { }; |
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var unpin = function (ctx, cb) { }; |
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var getHash = function (ctx, cb) { }; |
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var getTotalSize = function (ctx, cb) { }; |
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var getFileSize = function (ctx, cb) { }; |
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var Store = require("./storage/file"); |
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var isValidChannel = function (chan) { |
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return /^[a-fA-F0-9]/.test(chan); |
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@ -15,33 +11,38 @@ var isValidChannel = function (chan) { |
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var makeCookie = function (seq) { |
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return [ |
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Math.floor(new Date() / (1000*60*60*24)), |
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Math.floor((+new Date()) / (1000*60*60*24)), |
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process.pid, // jshint ignore:line
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seq |
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].join('|'); |
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//seq
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]; |
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// .join('|');
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}; |
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var parseCookie = function (cookie) { |
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if (!(cookie && cookie.split)) { return null; } |
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var parts = cookie.split('|'); |
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if (parts.length !== 3) { return null; } |
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if (parts.length !== 2) { return null; } |
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var c = {}; |
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c.time = new Date(parts[0]); |
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c.pid = parts[1]; |
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c.seq = parts[2]; |
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c.pid = Number(parts[1]); |
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//c.seq = parts[2];
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return c; |
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}; |
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var isValidCookie = function (ctx, cookie) { |
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var now = +new Date(); |
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if (!(cookie && cookie.time)) { return false; } |
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if (now - cookie.time > 300000) { // 5 minutes
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return false; |
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} |
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// different process. try harder
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if (process.pid !== cookie.pid) { // jshint ignore:line
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console.log('pid does not match'); |
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return false; |
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} |
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@ -90,6 +91,84 @@ var checkSignature = function (signedMsg, signature, publicKey) { |
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return Nacl.sign.detached.verify(signedBuffer, signatureBuffer, pubBuffer); |
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}; |
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var storeMessage = function (store, publicKey, msg, cb) { |
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store.message(publicKey, JSON.stringify(msg), cb); |
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}; |
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var pinChannel = function (store, publicKey, channel, cb) { |
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store.message(store, publicKey, ['PIN', channel], cb); |
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}; |
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var unpinChannel = function (store, publicKey, channel, cb) { |
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store.message(store, publicKey, ['UNPIN', channel], cb); |
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}; |
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var getChannelList = function (store, publicKey, cb) { |
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// to accumulate pinned channels
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var pins = {}; |
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store.getMessages(publicKey, function (msg) { |
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// handle messages...
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var parsed; |
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try { |
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parsed = JSON.parse(msg); |
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switch (parsed[0]) { |
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case 'PIN': |
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pins[parsed[1]] = true; |
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break; |
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case 'UNPIN': |
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pins[parsed[1]] = false; |
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break; |
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case 'RESET': |
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Object.keys(pins).forEach(function (pin) { |
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pins[pin] = false; |
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}); |
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break; |
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default: |
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console.error('invalid message read from store'); |
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} |
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} catch (e) { |
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console.log('invalid message read from store'); |
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console.error(e); |
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} |
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}, function () { |
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// no more messages
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var pinned = Object.keys(pins).filter(function (pin) { |
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return pins[pin]; |
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}); |
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cb(pinned); |
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}); |
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}; |
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var hashChannelList = function (A) { |
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var uniques = []; |
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A.forEach(function (a) { |
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if (uniques.indexOf(a) === -1) { uniques.push(a); } |
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}); |
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uniques.sort(); |
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var hash = Nacl.util.encodeBase64(Nacl.hash(Nacl |
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.util.decodeUTF8(JSON.stringify(uniques)))); |
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return hash; |
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}; |
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var getHash = function (store, publicKey, cb) { |
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getChannelList(store, publicKey, function (channels) { |
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cb(hashChannelList(channels)); |
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}); |
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}; |
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var resetUserPins = function (store, publicKey, channelList, cb) { |
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// TODO
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cb('NOT_IMPLEMENTED'); |
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}; |
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RPC.create = function (config, cb) { |
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// load pin-store...
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@ -97,7 +176,7 @@ RPC.create = function (config, cb) { |
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var Cookies = {}; |
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var store; |
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var rpc = function (ctx, data, respond) { |
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if (!data.length) { |
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@ -107,6 +186,7 @@ RPC.create = function (config, cb) { |
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} |
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var msg = data[0].slice(0); |
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var signature = msg.shift(); |
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var publicKey = msg.shift(); |
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var cookie = parseCookie(msg.shift()); |
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@ -116,7 +196,7 @@ RPC.create = function (config, cb) { |
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if (msg[0] !== 'COOKIE') { |
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return void respond('NO_COOKIE'); |
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} |
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} else if (!isValidCookie(cookie)) { // is it a valid cookie?
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} else if (!isValidCookie(Cookies, cookie)) { // is it a valid cookie?
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return void respond('INVALID_COOKIE'); |
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} |
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@ -144,13 +224,21 @@ RPC.create = function (config, cb) { |
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case 'ECHO': |
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return void respond(void 0, msg); |
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case 'RESET': |
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return void respond('NOT_IMPLEMENTED', msg); |
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return resetUserPins(store, publicKey, [], function (e) { |
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return void respond('NOT_IMPLEMENTED', msg); |
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}); |
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case 'PIN': |
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return void respond('NOT_IMPLEMENTED', msg); |
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return pinChannel(store, publicKey, msg[1], function (e) { |
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respond(e); |
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}); |
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case 'UNPIN': |
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return void respond('NOT_IMPLEMENTED', msg); |
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return unpinChannel(store, publicKey, msg[1], function (e) { |
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respond(e); |
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}); |
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case 'GET_HASH': |
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return void respond('NOT_IMPLEMENTED', msg); |
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return void getHash(store, publicKey, function (hash) { |
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respond(void 0, hash); |
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}); |
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case 'GET_TOTAL_SIZE': |
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return void respond('NOT_IMPLEMENTED', msg); |
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case 'GET_FILE_SIZE': |
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@ -167,6 +255,11 @@ RPC.create = function (config, cb) { |
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} |
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}; |
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cb(void 0, rpc); |
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Store.create({ |
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filePath: './pins' |
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}, function (s) { |
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store = s; |
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cb(void 0, rpc); |
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}); |
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}; |
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