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Merge branch 'master' of http://github.com/amark/gun

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This commit is contained in:
Mark Nadal 2018-10-11 15:27:30 -07:00
commit 7f4b77a454
8 changed files with 144 additions and 13 deletions
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2
README.md
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@ -8,7 +8,7 @@
**GUN** is an _ecosystem_ of tools that let you <u>build tomorrow's dApps, today</u>.
Decentralized alternatives to [Reddit](https://notabug.io/), [YouTube](https://d.tube/), [Wikipedia](https://news.ycombinator.com/item?id=17685682), etc. are already pushing terabytes of daily P2P traffic on GUN. We are a [friendly community](https://gitter.im/amark/gun) creating a free fun future for freedom:
Decentralized alternatives to [Reddit](https://notabug.io/t/whatever/comments/36588a16b9008da4e3f15663c2225e949eca4a15/gpu-bot-test), [YouTube](https://d.tube/), [Wikipedia](https://news.ycombinator.com/item?id=17685682), etc. are already pushing terabytes of daily P2P traffic on GUN. We are a [friendly community](https://gitter.im/amark/gun) creating a free fun future for freedom:
<table>
<tr>

121
lib/les.js Normal file
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@ -0,0 +1,121 @@
;
(function() {
// _ _____ ____ _
// | | | ____/ ___| (_)___
// | | | _| \___ \ | / __|
// | |___| |___ ___) | | \__ \
// |_____|_____|____(_)/ |___/
// ----------------------------
// LES.js (Last rEcently uSed)
// ----------------------------
// A Small, lightweight, queue-based
// Garbage Collector for Gun
// Originally By: Collin Conrad (@masterex1000)
//NOTE: set to false is running from file in YOUR code
var USELOCALGUN = true;
//NOTE: adds some debug messages
var DEBUG = false;
var Gun = (typeof window !== "undefined") ? window.Gun : (USELOCALGUN ? require('../gun') : require("gun"));
var ev = {};
var empty = {};
Gun.on('opt', function(root) {
this.to.next(root);
if (root.once)
return;
if (typeof process == 'undefined')
return
var mem = process.memoryUsage;
if (!mem) //exit because we are in the browser
return;
//Figure out the most amount of memory we can use. TODO: make configurable?
ev.max = parseFloat(root.opt.memory || process.env.WEB_MEMORY || 512) * 0.8;
var nodes = {}; //checks if the node already exists
var nodesArray = []; //used to easily sort everything and store info about the nodes
var memoryUpdate = 0; // last time we printed the current memory stats
var check = function() {
ev.used = mem().rss / 1024 / 1024; //Contains the amt. of used ram in MB
setTimeout(function() { // So we can handle requests etc. before we start collecting
GC(ev.used / ev.max); // Calculate the memory ratio, and execute the garbage collector
}, 1);
}
setInterval(check, 1000); // set the garbage collector to run every second, TODO: make configurable
//Executed every time a node gets modifyed
root.on("put", function(e) {
var ctime = Date.now();
var souls = Object.keys(e.put || empty);
for (var i = 0; i < souls.length; i++) {
enqueueNode(souls[i], ctime);
}
});
//Adds a soul the garbage collectors "freeing" queue
function enqueueNode(soul, ctime) {
if (nodes[soul] == true) { //The node already exists in the queue
var index = nodesArray.findIndex(function(e) {
return e[0] === soul;
});
if (index == -1) {
console.err("Something happened and the node '" + soul + "' won't get garbage collection unless the value is updated agian");
return;
} else {
nodesArray.splice(index, 1); // remove the existing ref.
nodesArray.push([soul, ctime]); // push the new instance
}
} else {
nodesArray.push([soul, ctime]);
nodes[soul] = true;
}
}
//The main garbage collecting routine
function GC(memRatio) {
var curTime = Date.now(); // get the current time
if (curTime - memoryUpdate >= 5000) {
console.log("|GC| %s | Current Memory Ratio: %d | Current Ram Usage %sMB | Nodes in Memory %s", new Date().toLocaleString(), round(memRatio, 2), round(ev.used, 2), Object.keys(root.graph || empty).length);
memoryUpdate = curTime;
}
var freed = 0;
while (nodesArray.length > 0) {
var soul = nodesArray[0][0];
var nts = nodesArray[0][1];
if (DEBUG)
console.log("Soul: " + soul + " | Remove Importance: " + calcRemoveImportance(nts, curTime, memRatio) +
" | Memory Ratio: " + memRatio + " | Time Existed: " + (curTime - nts) / 1000);
if (calcRemoveImportance(nodesArray[0][1], curTime, memRatio) >= 100) {
root.gun.get(nodesArray[0][0]).off(); //Remove the node
delete nodes[nodesArray[0][0]]; // remove the lookup value
nodesArray.splice(0, 1);
freed++;
} else
break;
}
if (freed > 0)
console.log("|GC| Removed %s nodes in %s seconds-----------------------------------------------------------------", freed, (Date.now() - curTime) * 0.001);
}
//Generates a number that, after it hits a threshold, the node gets removed
function calcRemoveImportance(timestamp, ctime, memoryUsageRatio) {
var time = (ctime - timestamp) * 0.001;
return time * 10 * (memoryUsageRatio * memoryUsageRatio)
}
function round(value, decimals) { //a basic rounding function
return Number(Math.round(value + 'e' + decimals) + 'e-' + decimals);
}
});
}());

4
nts.js
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@ -37,8 +37,8 @@
NTS.end = Gun.state();
Gun.obj.del(ask, ack);
NTS.latency = (NTS.end - NTS.start)/2;
if(!at.NTS){ return }
NTS.calc = NTS.latency + at.NTS;
if(!at.nts && !at.NTS){ return }
NTS.calc = NTS.latency + (at.NTS || at.nts);
Gun.state.drift -= (NTS.end - NTS.calc)/2;
setTimeout(ping, 1000);
}

4
sea.js
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@ -267,7 +267,7 @@
// This internal func returns SHA-1 hashed data for KeyID generation
const __shim = USE('./shim')
const subtle = __shim.subtle
const ossl = __shim.ossl ? __shim.__ossl : subtle
const ossl = __shim.ossl ? __shim.ossl : subtle
const sha1hash = (b) => ossl.digest({name: 'SHA-1'}, new ArrayBuffer(b))
module.exports = sha1hash
})(USE, './sha1');
@ -625,7 +625,7 @@
try {
// base64('base64(x):base64(y)') => Buffer(xy)
const pb = Buffer.concat(
Buffer.from(pub, 'base64').toString('utf8').split(':')
pub.replace(/-/g, '+').replace(/_/g, '/').split('.')
.map((t) => Buffer.from(t, 'base64'))
)
// id is PGPv4 compliant raw key

4
sea/index.js
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@ -62,7 +62,7 @@
// if there is a request to read data from us, then...
var soul = msg.get['#'];
if(soul){ // for now, only allow direct IDs to be read.
if(soul !== 'string'){ return to.next(msg) } // do not handle lexical cursors.
if(typeof soul !== 'string'){ return to.next(msg) } // do not handle lexical cursors.
if('alias' === soul){ // Allow reading the list of usernames/aliases in the system?
return to.next(msg); // yes.
} else
@ -226,4 +226,4 @@
to.next(msg); // pass forward any data we do not know how to handle or process (this allows custom security protocols).
}

2
sea/sea.js
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@ -49,7 +49,7 @@
try {
// base64('base64(x):base64(y)') => Buffer(xy)
const pb = Buffer.concat(
Buffer.from(pub, 'base64').toString('utf8').split(':')
pub.replace(/-/g, '+').replace(/_/g, '/').split('.')
.map((t) => Buffer.from(t, 'base64'))
)
// id is PGPv4 compliant raw key

2
sea/sha1.js
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@ -2,7 +2,7 @@
// This internal func returns SHA-1 hashed data for KeyID generation
const __shim = require('./shim')
const subtle = __shim.subtle
const ossl = __shim.ossl ? __shim.__ossl : subtle
const ossl = __shim.ossl ? __shim.ossl : subtle
const sha1hash = (b) => ossl.digest({name: 'SHA-1'}, new ArrayBuffer(b))
module.exports = sha1hash

18
test/sea/sea.html
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@ -1,6 +1,6 @@
<script src="../gun.js"></script>
<script src="../lib/cryptomodules.js"></script>
<script src="../sea.js"></script>
<script src="../../gun.js"></script>
<script src="../../lib/cryptomodules.js"></script>
<script src="../../sea.js"></script>
<script>
;(function(){
localStorage.clear();
@ -12,7 +12,17 @@
function login(ack){
console.log("login...");
user.auth('alice', 'unsafepassword', write);
user.auth('alice', 'unsafepassword', keys);
}
function keys(data){
console.log("keys...");
const keys = user.pair();
console.log(keys);
Gun.SEA.keyid(keys.pub).then(function (keyid) {
console.log("Public key KeyID (PGPv4): " + keyid);
write(keys);
});
}
function write(data){