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gun.js
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;(function(){
/* UNBUILD */
function USE(arg, req){
return req? require(arg) : arg.slice? USE[R(arg)] : function(mod, path){
arg(mod = {exports: {}});
USE[R(path)] = mod.exports;
}
function R(p){
return p.split('/').slice(-1).toString().replace('.js','');
}
}
if(typeof module !== "undefined"){ var MODULE = module }
/* UNBUILD */
;USE(function(module){
// Shim for generic javascript utilities.
String.random = function(l, c){
var s = '';
l = l || 24; // you are not going to make a 0 length random number, so no need to check type
c = c || '0123456789ABCDEFGHIJKLMNOPQRSTUVWXZabcdefghijklmnopqrstuvwxyz';
while(l-- > 0){ s += c.charAt(Math.floor(Math.random() * c.length)) }
return s;
}
String.match = function(t, o){ var tmp, u;
if('string' !== typeof t){ return false }
if('string' == typeof o){ o = {'=': o} }
o = o || {};
tmp = (o['='] || o['*'] || o['>'] || o['<']);
if(t === tmp){ return true }
if(u !== o['=']){ return false }
tmp = (o['*'] || o['>']);
if(t.slice(0, (tmp||'').length) === tmp){ return true }
if(u !== o['*']){ return false }
if(u !== o['>'] && u !== o['<']){
return (t >= o['>'] && t <= o['<'])? true : false;
}
if(u !== o['>'] && t >= o['>']){ return true }
if(u !== o['<'] && t <= o['<']){ return true }
return false;
}
String.hash = function(s, c){ // via SO
if(typeof s !== 'string'){ return }
c = c || 0; // CPU schedule hashing by
if(!s.length){ return c }
for(var i=0,l=s.length,n; i<l; ++i){
n = s.charCodeAt(i);
c = ((c<<5)-c)+n;
c |= 0;
}
return c;
}
var has = Object.prototype.hasOwnProperty;
Object.plain = function(o){ return o? (o instanceof Object && o.constructor === Object) || Object.prototype.toString.call(o).match(/^\[object (\w+)\]$/)[1] === 'Object' : false }
Object.empty = function(o, n){
for(var k in o){ if(has.call(o, k) && (!n || -1==n.indexOf(k))){ return false } }
return true;
}
Object.keys = Object.keys || function(o){
var l = [];
for(var k in o){ if(has.call(o, k)){ l.push(k) } }
return l;
}
;(function(){
var u, sT = setTimeout, l = 0, c = 0
, sI = (typeof setImmediate !== ''+u && setImmediate) || (function(c,f){
if(typeof MessageChannel == ''+u){ return sT }
(c = new MessageChannel()).port1.onmessage = function(e){ ''==e.data && f() }
return function(q){ f=q;c.port2.postMessage('') }
}()), check = sT.check = sT.check || (typeof performance !== ''+u && performance)
|| {now: function(){ return +new Date }};
sT.hold = sT.hold || 9; // half a frame benchmarks faster than < 1ms?
sT.poll = sT.poll || function(f){
if((sT.hold >= (check.now() - l)) && c++ < 3333){ f(); return }
sI(function(){ l = check.now(); f() },c=0)
}
}());
;(function(){ // Too many polls block, this "threads" them in turns over a single thread in time.
var sT = setTimeout, t = sT.turn = sT.turn || function(f){ 1 == s.push(f) && p(T) }
, s = t.s = [], p = sT.poll, i = 0, f, T = function(){
if(f = s[i++]){ f() }
if(i == s.length || 99 == i){
s = t.s = s.slice(i);
i = 0;
}
if(s.length){ p(T) }
}
}());
;(function(){
var u, sT = setTimeout, T = sT.turn;
(sT.each = sT.each || function(l,f,e,S){ S = S || 9; (function t(s,L,r){
if(L = (s = (l||[]).splice(0,S)).length){
for(var i = 0; i < L; i++){
if(u !== (r = f(s[i]))){ break }
}
if(u === r){ T(t); return }
} e && e(r);
}())})();
}());
})(USE, './shim');
;USE(function(module){
// On event emitter generic javascript utility.
module.exports = function onto(tag, arg, as){
if(!tag){ return {to: onto} }
var u, f = 'function' == typeof arg, tag = (this.tag || (this.tag = {}))[tag] || f && (
this.tag[tag] = {tag: tag, to: onto._ = { next: function(arg){ var tmp;
if(tmp = this.to){ tmp.next(arg) }
}}});
if(f){
var be = {
off: onto.off ||
(onto.off = function(){
if(this.next === onto._.next){ return !0 }
if(this === this.the.last){
this.the.last = this.back;
}
this.to.back = this.back;
this.next = onto._.next;
this.back.to = this.to;
if(this.the.last === this.the){
delete this.on.tag[this.the.tag];
}
}),
to: onto._,
next: arg,
the: tag,
on: this,
as: as,
};
(be.back = tag.last || tag).to = be;
return tag.last = be;
}
if((tag = tag.to) && u !== arg){ tag.next(arg) }
return tag;
};
})(USE, './onto');
;USE(function(module){
// TODO: BUG! Unbuild will make these globals... CHANGE unbuild to wrap files in a function.
// Book is a replacement for JS objects, maps, dictionaries.
var sT = setTimeout, B = sT.Book || (sT.Book = function(text){
var b = function book(word, is){
var has = b.all[word], p;
if(is === undefined){ return (has && has.is) || b.get(has || word) }
if(has){
if(p = has.page){
p.size += size(is) - size(has.is);
p.text = '';
}
has.text = '';
has.is = is;
return b;
}
//b.all[word] = {is: word}; return b;
return b.set(word, is);
};
// TODO: if from text, preserve the separator symbol.
b.list = [{from: text, size: (text||'').length, substring: sub, toString: to, book: b, get: b, read: list}];
b.page = page;
b.set = set;
b.get = get;
b.all = {};
return b;
}), PAGE = 2**12;
function page(word){
var b = this, l = b.list, i = spot(word, l, b.parse), p = l[i];
if('string' == typeof p){ l[i] = p = {size: -1, first: b.parse? b.parse(p) : p, substring: sub, toString: to, book: b, get: b, read: list} } // TODO: test, how do we arrive at this condition again?
//p.i = i;
return p;
// TODO: BUG! What if we get the page, it turns out to be too big & split, we must then RE get the page!
}
function get(word){
if(!word){ return }
if(undefined !== word.is){ return word.is } // JS falsey values!
var b = this, has = b.all[word];
if(has){ return has.is }
// get does an exact match, so we would have found it already, unless parseless page:
var page = b.page(word), l, has, a, i;
if(!page || !page.from){ return } // no parseless data
return got(word, page);
}
function got(word, page){
var b = page.book, l, has, a, i;
if(l = from(page)){ has = l[got.i = i = spot(word, l, B.decode)]; } // TODO: POTENTIAL BUG! This assumes that each word on a page uses the same serializer/formatter/structure. // TOOD: BUG!!! Not actually, but if we want to do non-exact radix-like closest-word lookups on a page, we need to check limbo & potentially sort first.
// parseless may return -1 from actual value, so we may need to test both. // TODO: Double check? I think this is correct.
if(has && word == has.word){ return (b.all[word] = has).is }
if('string' != typeof has){ has = l[got.i = i+=1] }
if(has && word == has.word){ return (b.all[word] = has).is }
a = slot(has) // Escape!
if(word != B.decode(a[0])){
has = l[got.i = i+=1]; // edge case bug?
a = slot(has); // edge case bug?
if(word != B.decode(a[0])){ return }
}
has = l[i] = b.all[word] = {word: ''+word, is: B.decode(a[1]), page: page, substring: subt, toString: tot}; // TODO: convert to a JS value!!! Maybe index! TODO: BUG word needs a page!!!! TODO: Check for other types!!!
return has.is;
}
function spot(word, sorted, parse){ parse = parse || spot.no || (spot.no = function(t){ return t }); // TODO: BUG???? Why is there substring()||0 ? // TODO: PERF!!! .toString() is +33% faster, can we combine it with the export?
var L = sorted, min = 0, page, found, l = (word=''+word).length, max = L.length, i = max/2;
while(((word < (page = (parse(L[i=i>>0])||'').substring())) || ((parse(L[i+1])||'').substring() <= word)) && i != min){ // L[i] <= word < L[i+1]
i += (page <= word)? (max - (min = i))/2 : -((max = i) - min)/2;
}
return i;
}
function from(a, t, l){
if('string' != typeof a.from){ return a.from }
//(l = a.from = (t = a.from||'').substring(1, t.length-1).split(t[0])); // slot
(l = a.from = slot(t = t||a.from||''));
return l;
}
function list(each){ each = each || function(x){return x}
var i = 0, l = sort(this), w, r = [], p = this.book.parse || function(){};
//while(w = l[i++]){ r.push(each(slot(w)[1], p(w)||w, this)) }
while(w = l[i++]){ r.push(each(this.get(w = w.word||p(w)||w), w, this)) } // TODO: BUG! PERF?
return r;
}
function set(word, is){
var b = this, has = b.all[word];
if(has){ return b(word, is) } // updates to in-memory items will always match exactly.
var page = b.page(word=''+word), tmp; // before we assume this is an insert tho, we need to check
if(page && page.from){ // if it could be an update to an existing word from parseless.
b.get(word);
if(b.all[word]){ return b(word, is) }
}
// MUST be an insert:
has = b.all[word] = {word: word, is: is, page: page, substring: subt, toString: tot};
page.first = (page.first < word)? page.first : word;
if(!page.limbo){ (page.limbo = []) }
page.limbo.push(has);
b(word, is);
page.size += size(word) + size(is);
if((b.PAGE || PAGE) < page.size){ split(page, b) }
return b;
}
function split(p, b){ // TODO: use closest hash instead of half.
//console.time();
var L = sort(p), l = L.length, i = l/2 >> 0, j = i, half = L[j], tmp;
//console.timeEnd();
var next = {first: half.substring(), size: 0, substring: sub, toString: to, book: b, get: b, read: list}, f = next.from = [];
//console.time();
while(tmp = L[i++]){
f.push(tmp);
next.size += (tmp.is||'').length||1;
tmp.page = next;
}
//console.timeEnd(); console.time();
p.from = p.from.slice(0, j);
p.size -= next.size;
b.list.splice(spot(next.first, b.list)+1, 0, next); // TODO: BUG! Make sure next.first is decoded text. // TODO: BUG! spot may need parse too?
//console.timeEnd();
if(b.split){ b.split(next, p) }
}
function slot(t){ return heal((t=t||'').substring(1, t.length-1).split(t[0]), t[0]) } B.slot = slot; // TODO: check first=last & pass `s`.
function heal(l, s){ var i, e;
if(0 > (i = l.indexOf(''))){ return l } // ~700M ops/sec on 4KB of Math.random()s, even faster if escape does exist.
if('' == l[0] && 1 == l.length){ return [] } // annoying edge cases! how much does this slow us down?
//if((c=i+2+parseInt(l[i+1])) != c){ return [] } // maybe still faster than below?
if((e=i+2+parseInt((e=l[i+1]).substring(0, e.indexOf('"'))||e)) != e){ return [] } // NaN check in JS is weird.
l[i] = l.slice(i, e).join(s||'|'); // rejoin the escaped value
return l.slice(0,i+1).concat(heal(l.slice(e), s)); // merge left with checked right.
}
function size(t){ return (t||'').length||1 } // bits/numbers less size? Bug or feature?
function subt(i,j){ return this.word }
//function tot(){ return this.text = this.text || "'"+(this.word)+"'"+(this.is)+"'" }
function tot(){ var tmp = {};
//if((tmp = this.page) && tmp.saving){ delete tmp.book.all[this.word]; } // TODO: BUG! Book can't know about RAD, this was from RAD, so this MIGHT be correct but we need to refactor. Make sure to add tests that will re-trigger this.
return this.text = this.text || ":"+B.encode(this.word)+":"+B.encode(this.is)+":";
tmp[this.word] = this.is;
return this.text = this.text || B.encode(tmp,'|',':').slice(1,-1);
//return this.text = this.text || "'"+(this.word)+"'"+(this.is)+"'";
}
function sub(i,j){ return (this.first||this.word||B.decode((from(this)||'')[0]||'')).substring(i,j) }
function to(){ return this.text = this.text || text(this) }
function text(p){ // PERF: read->[*] : text->"*" no edit waste 1 time perf.
if(p.limbo){ sort(p) } // TODO: BUG? Empty page meaning? undef, '', '||'?
return ('string' == typeof p.from)? p.from : '|'+(p.from||[]).join('|')+'|';
}
function sort(p, l){
var f = p.from = ('string' == typeof p.from)? slot(p.from) : p.from||[];
if(!(l = l || p.limbo)){ return f }
return mix(p).sort(function(a,b){
return (a.word||B.decode(''+a)) < (b.word||B.decode(''+b))? -1:1;
});
}
function mix(p, l){ // TODO: IMPROVE PERFORMANCE!!!! l[j] = i is 5X+ faster than .push(
l = l || p.limbo || []; p.limbo = null;
var j = 0, i, f = p.from;
while(i = l[j++]){
if(got(i.word, p)){
f[got.i] = i; // TODO: Trick: allow for a GUN'S HAM CRDT hook here.
} else {
f.push(i);
}
}
return f;
}
B.encode = function(d, s, u){ s = s || "|"; u = u || String.fromCharCode(32);
switch(typeof d){
case 'string': // text
var i = d.indexOf(s), c = 0;
while(i != -1){ c++; i = d.indexOf(s, i+1) }
return (c?s+c:'')+ '"' + d;
case 'number': return (d < 0)? ''+d : '+'+d;
case 'boolean': return d? '+' : '-';
case 'object': if(!d){ return ' ' } // TODO: BUG!!! Nested objects don't slot correctly
var l = Object.keys(d).sort(), i = 0, t = s, k, v;
while(k = l[i++]){ t += u+B.encode(k,s,u)+u+B.encode(d[k],s,u)+u+s }
return t;
}
}
B.decode = function(t, s){ s = s || "|";
if('string' != typeof t){ return }
switch(t){ case ' ': return null; case '-': return false; case '+': return true; }
switch(t[0]){
case '-': case '+': return parseFloat(t);
case '"': return t.slice(1);
}
return t.slice(t.indexOf('"')+1);
}
B.hash = function(s, c){ // via SO
if(typeof s !== 'string'){ return }
c = c || 0; // CPU schedule hashing by
if(!s.length){ return c }
for(var i=0,l=s.length,n; i<l; ++i){
n = s.charCodeAt(i);
c = ((c<<5)-c)+n;
c |= 0;
}
return c;
}
function record(key, val){ return key+B.encode(val)+"%"+key.length }
function decord(t){
var o = {}, i = t.lastIndexOf("%"), c = parseFloat(t.slice(i+1));
o[t.slice(0,c)] = B.decode(t.slice(c,i));
return o;
}
try{module.exports=B}catch(e){}
})(USE, './book');
;USE(function(module){
// Valid values are a subset of JSON: null, binary, number (!Infinity), text,
// or a soul relation. Arrays need special algorithms to handle concurrency,
// so they are not supported directly. Use an extension that supports them if
// needed but research their problems first.
module.exports = function(v){
// "deletes", nulling out keys.
return v === null ||
"string" === typeof v ||
"boolean" === typeof v ||
// we want +/- Infinity to be, but JSON does not support it, sad face.
// can you guess what v === v checks for? ;)
("number" === typeof v && v != Infinity && v != -Infinity && v === v) ||
(!!v && "string" == typeof v["#"] && Object.keys(v).length === 1 && v["#"]);
}
})(USE, './valid');
;USE(function(module){
USE('./shim');
function State(){
var t = +new Date;
if(last < t){
return N = 0, last = t + State.drift;
}
return last = t + ((N += 1) / D) + State.drift;
}
State.drift = 0;
var NI = -Infinity, N = 0, D = 999, last = NI, u; // WARNING! In the future, on machines that are D times faster than 2016AD machines, you will want to increase D by another several orders of magnitude so the processing speed never out paces the decimal resolution (increasing an integer effects the state accuracy).
State.is = function(n, k, o){ // convenience function to get the state on a key on a node and return it.
var tmp = (k && n && n._ && n._['>']) || o;
if(!tmp){ return }
return ('number' == typeof (tmp = tmp[k]))? tmp : NI;
}
State.ify = function(n, k, s, v, soul){ // put a key's state on a node.
(n = n || {})._ = n._ || {}; // safety check or init.
if(soul){ n._['#'] = soul } // set a soul if specified.
var tmp = n._['>'] || (n._['>'] = {}); // grab the states data.
if(u !== k && k !== '_'){
if('number' == typeof s){ tmp[k] = s } // add the valid state.
if(u !== v){ n[k] = v } // Note: Not its job to check for valid values!
}
return n;
}
module.exports = State;
})(USE, './state');
;USE(function(module){
USE('./shim');
function Dup(opt){
var dup = {s:{}}, s = dup.s;
opt = opt || {max: 999, age: 1000 * 9};//*/ 1000 * 9 * 3};
dup.check = function(id){
if(!s[id]){ return false }
return dt(id);
}
var dt = dup.track = function(id){
var it = s[id] || (s[id] = {});
it.was = dup.now = +new Date;
if(!dup.to){ dup.to = setTimeout(dup.drop, opt.age + 9) }
if(dt.ed){ dt.ed(id) }
return it;
}
dup.drop = function(age){
dup.to = null;
dup.now = +new Date;
var l = Object.keys(s);
console.STAT && console.STAT(dup.now, +new Date - dup.now, 'dup drop keys'); // prev ~20% CPU 7% RAM 300MB // now ~25% CPU 7% RAM 500MB
setTimeout.each(l, function(id){ var it = s[id]; // TODO: .keys( is slow?
if(it && (age || opt.age) > (dup.now - it.was)){ return }
delete s[id];
},0,99);
}
return dup;
}
module.exports = Dup;
})(USE, './dup');
;USE(function(module){
// request / response module, for asking and acking messages.
USE('./onto'); // depends upon onto!
module.exports = function ask(cb, as){
if(!this.on){ return }
var lack = (this.opt||{}).lack || 9000;
if(!('function' == typeof cb)){
if(!cb){ return }
var id = cb['#'] || cb, tmp = (this.tag||'')[id];
if(!tmp){ return }
if(as){
tmp = this.on(id, as);
clearTimeout(tmp.err);
tmp.err = setTimeout(function(){ tmp.off() }, lack);
}
return true;
}
var id = (as && as['#']) || random(9);
if(!cb){ return id }
var to = this.on(id, cb, as);
to.err = to.err || setTimeout(function(){ to.off();
to.next({err: "Error: No ACK yet.", lack: true});
}, lack);
return id;
}
var random = String.random || function(){ return Math.random().toString(36).slice(2) }
})(USE, './ask');
;USE(function(module){
function Gun(o){
if(o instanceof Gun){ return (this._ = {$: this}).$ }
if(!(this instanceof Gun)){ return new Gun(o) }
return Gun.create(this._ = {$: this, opt: o});
}
Gun.is = function($){ return ($ instanceof Gun) || ($ && $._ && ($ === $._.$)) || false }
Gun.version = 0.2020;
Gun.chain = Gun.prototype;
Gun.chain.toJSON = function(){};
USE('./shim');
Gun.valid = USE('./valid');
Gun.state = USE('./state');
Gun.on = USE('./onto');
Gun.dup = USE('./dup');
Gun.ask = USE('./ask');
;(function(){
Gun.create = function(at){
at.root = at.root || at;
at.graph = at.graph || {};
at.on = at.on || Gun.on;
at.ask = at.ask || Gun.ask;
at.dup = at.dup || Gun.dup();
var gun = at.$.opt(at.opt);
if(!at.once){
at.on('in', universe, at);
at.on('out', universe, at);
at.on('put', map, at);
Gun.on('create', at);
at.on('create', at);
}
at.once = 1;
return gun;
}
function universe(msg){
// TODO: BUG! msg.out = null being set!
//if(!F){ var eve = this; setTimeout(function(){ universe.call(eve, msg,1) },Math.random() * 100);return; } // ADD F TO PARAMS!
if(!msg){ return }
if(msg.out === universe){ this.to.next(msg); return }
var eve = this, as = eve.as, at = as.at || as, gun = at.$, dup = at.dup, tmp, DBG = msg.DBG;
(tmp = msg['#']) || (tmp = msg['#'] = text_rand(9));
if(dup.check(tmp)){ return } dup.track(tmp);
tmp = msg._; msg._ = ('function' == typeof tmp)? tmp : function(){};
(msg.$ && (msg.$ === (msg.$._||'').$)) || (msg.$ = gun);
if(msg['@'] && !msg.put){ ack(msg) }
if(!at.ask(msg['@'], msg)){ // is this machine listening for an ack?
DBG && (DBG.u = +new Date);
if(msg.put){ put(msg); return } else
if(msg.get){ Gun.on.get(msg, gun) }
}
DBG && (DBG.uc = +new Date);
eve.to.next(msg);
DBG && (DBG.ua = +new Date);
if(msg.nts || msg.NTS){ return } // TODO: This shouldn't be in core, but fast way to prevent NTS spread. Delete this line after all peers have upgraded to newer versions.
msg.out = universe; at.on('out', msg);
DBG && (DBG.ue = +new Date);
}
function put(msg){
if(!msg){ return }
var ctx = msg._||'', root = ctx.root = ((ctx.$ = msg.$||'')._||'').root;
if(msg['@'] && ctx.faith && !ctx.miss){ // TODO: AXE may split/route based on 'put' what should we do here? Detect @ in AXE? I think we don't have to worry, as DAM will route it on @.
msg.out = universe;
root.on('out', msg);
return;
}
ctx.latch = root.hatch; ctx.match = root.hatch = [];
var put = msg.put;
var DBG = ctx.DBG = msg.DBG, S = +new Date; CT = CT || S;
if(put['#'] && put['.']){ /*root && root.on('put', msg);*/ return } // TODO: BUG! This needs to call HAM instead.
DBG && (DBG.p = S);
ctx['#'] = msg['#'];
ctx.msg = msg;
ctx.all = 0;
ctx.stun = 1;
var nl = Object.keys(put);//.sort(); // TODO: This is unbounded operation, large graphs will be slower. Write our own CPU scheduled sort? Or somehow do it in below? Keys itself is not O(1) either, create ES5 shim over ?weak map? or custom which is constant.
console.STAT && console.STAT(S, ((DBG||ctx).pk = +new Date) - S, 'put sort');
var ni = 0, nj, kl, soul, node, states, err, tmp;
(function pop(o){
if(nj != ni){ nj = ni;
if(!(soul = nl[ni])){
console.STAT && console.STAT(S, ((DBG||ctx).pd = +new Date) - S, 'put');
fire(ctx);
return;
}
if(!(node = put[soul])){ err = ERR+cut(soul)+"no node." } else
if(!(tmp = node._)){ err = ERR+cut(soul)+"no meta." } else
if(soul !== tmp['#']){ err = ERR+cut(soul)+"soul not same." } else
if(!(states = tmp['>'])){ err = ERR+cut(soul)+"no state." }
kl = Object.keys(node||{}); // TODO: .keys( is slow
}
if(err){
msg.err = ctx.err = err; // invalid data should error and stun the message.
fire(ctx);
//console.log("handle error!", err) // handle!
return;
}
var i = 0, key; o = o || 0;
while(o++ < 9 && (key = kl[i++])){
if('_' === key){ continue }
var val = node[key], state = states[key];
if(u === state){ err = ERR+cut(key)+"on"+cut(soul)+"no state."; break }
if(!valid(val)){ err = ERR+cut(key)+"on"+cut(soul)+"bad "+(typeof val)+cut(val); break }
//ctx.all++; //ctx.ack[soul+key] = '';
ham(val, key, soul, state, msg);
++C; // courtesy count;
}
if((kl = kl.slice(i)).length){ turn(pop); return }
++ni; kl = null; pop(o);
}());
} Gun.on.put = put;
// TODO: MARK!!! clock below, reconnect sync, SEA certify wire merge, User.auth taking multiple times, // msg put, put, say ack, hear loop...
// WASIS BUG! local peer not ack. .off other people: .open
function ham(val, key, soul, state, msg){
var ctx = msg._||'', root = ctx.root, graph = root.graph, lot, tmp;
var vertex = graph[soul] || empty, was = state_is(vertex, key, 1), known = vertex[key];
var DBG = ctx.DBG; if(tmp = console.STAT){ if(!graph[soul] || !known){ tmp.has = (tmp.has || 0) + 1 } }
var now = State(), u;
if(state > now){
setTimeout(function(){ ham(val, key, soul, state, msg) }, (tmp = state - now) > MD? MD : tmp); // Max Defer 32bit. :(
console.STAT && console.STAT(((DBG||ctx).Hf = +new Date), tmp, 'future');
return;
}
if(state < was){ /*old;*/ if(true || !ctx.miss){ return } } // but some chains have a cache miss that need to re-fire. // TODO: Improve in future. // for AXE this would reduce rebroadcast, but GUN does it on message forwarding. // TURNS OUT CACHE MISS WAS NOT NEEDED FOR NEW CHAINS ANYMORE!!! DANGER DANGER DANGER, ALWAYS RETURN! (or am I missing something?)
if(!ctx.faith){ // TODO: BUG? Can this be used for cache miss as well? // Yes this was a bug, need to check cache miss for RAD tests, but should we care about the faith check now? Probably not.
if(state === was && (val === known || L(val) <= L(known))){ /*console.log("same");*/ /*same;*/ if(!ctx.miss){ return } } // same
}
ctx.stun++; // TODO: 'forget' feature in SEA tied to this, bad approach, but hacked in for now. Any changes here must update there.
var aid = msg['#']+ctx.all++, id = {toString: function(){ return aid }, _: ctx}; id.toJSON = id.toString; // this *trick* makes it compatible between old & new versions.
root.dup.track(id)['#'] = msg['#']; // fixes new OK acks for RPC like RTC.
DBG && (DBG.ph = DBG.ph || +new Date);
root.on('put', {'#': id, '@': msg['@'], put: {'#': soul, '.': key, ':': val, '>': state}, ok: msg.ok, _: ctx});
}
function map(msg){
var DBG; if(DBG = (msg._||'').DBG){ DBG.pa = +new Date; DBG.pm = DBG.pm || +new Date}
var eve = this, root = eve.as, graph = root.graph, ctx = msg._, put = msg.put, soul = put['#'], key = put['.'], val = put[':'], state = put['>'], id = msg['#'], tmp;
if((tmp = ctx.msg) && (tmp = tmp.put) && (tmp = tmp[soul])){ state_ify(tmp, key, state, val, soul) } // necessary! or else out messages do not get SEA transforms.
//var bytes = ((graph[soul]||'')[key]||'').length||1;
graph[soul] = state_ify(graph[soul], key, state, val, soul);
if(tmp = (root.next||'')[soul]){
//tmp.bytes = (tmp.bytes||0) + ((val||'').length||1) - bytes;
//if(tmp.bytes > 2**13){ Gun.log.once('byte-limit', "Note: In the future, GUN peers will enforce a ~4KB query limit. Please see https://gun.eco/docs/Page") }
tmp.on('in', msg)
}
fire(ctx);
eve.to.next(msg);
}
function fire(ctx, msg){ var root;
if(ctx.stop){ return }
if(!ctx.err && 0 < --ctx.stun){ return } // TODO: 'forget' feature in SEA tied to this, bad approach, but hacked in for now. Any changes here must update there.
ctx.stop = 1;
if(!(root = ctx.root)){ return }
var tmp = ctx.match; tmp.end = 1;
if(tmp === root.hatch){ if(!(tmp = ctx.latch) || tmp.end){ delete root.hatch } else { root.hatch = tmp } }
ctx.hatch && ctx.hatch(); // TODO: rename/rework how put & this interact.
setTimeout.each(ctx.match, function(cb){cb && cb()});
if(!(msg = ctx.msg) || ctx.err || msg.err){ return }
msg.out = universe;
ctx.root.on('out', msg);
CF(); // courtesy check;
}
function ack(msg){ // aggregate ACKs.
var id = msg['@'] || '', ctx, ok, tmp;
if(!(ctx = id._)){
var dup = (dup = msg.$) && (dup = dup._) && (dup = dup.root) && (dup = dup.dup);
if(!(dup = dup.check(id))){ return }
msg['@'] = dup['#'] || msg['@']; // This doesn't do anything anymore, backtrack it to something else?
return;
}
ctx.acks = (ctx.acks||0) + 1;
if(ctx.err = msg.err){
msg['@'] = ctx['#'];
fire(ctx); // TODO: BUG? How it skips/stops propagation of msg if any 1 item is error, this would assume a whole batch/resync has same malicious intent.
}
ctx.ok = msg.ok || ctx.ok;
if(!ctx.stop && !ctx.crack){ ctx.crack = ctx.match && ctx.match.push(function(){back(ctx)}) } // handle synchronous acks. NOTE: If a storage peer ACKs synchronously then the PUT loop has not even counted up how many items need to be processed, so ctx.STOP flags this and adds only 1 callback to the end of the PUT loop.
back(ctx);
}
function back(ctx){
if(!ctx || !ctx.root){ return }
if(ctx.stun || ctx.acks !== ctx.all){ return }
ctx.root.on('in', {'@': ctx['#'], err: ctx.err, ok: ctx.err? u : ctx.ok || {'':1}});
}
var ERR = "Error: Invalid graph!";
var cut = function(s){ return " '"+(''+s).slice(0,9)+"...' " }
var L = JSON.stringify, MD = 2147483647, State = Gun.state;
var C = 0, CT, CF = function(){if(C>999 && (C/-(CT - (CT = +new Date))>1)){Gun.window && console.warn("You're syncing 1K+ records a second, faster than DOM can update - consider limiting query.");CF=function(){C=0}}};
}());
;(function(){
Gun.on.get = function(msg, gun){
var root = gun._, get = msg.get, soul = get['#'], node = root.graph[soul], has = get['.'];
var next = root.next || (root.next = {}), at = next[soul];
// TODO: Azarattum bug, what is in graph is not same as what is in next. Fix!
// queue concurrent GETs?
// TODO: consider tagging original message into dup for DAM.
// TODO: ^ above? In chat app, 12 messages resulted in same peer asking for `#user.pub` 12 times. (same with #user GET too, yipes!) // DAM note: This also resulted in 12 replies from 1 peer which all had same ##hash but none of them deduped because each get was different.
// TODO: Moving quick hacks fixing these things to axe for now.
// TODO: a lot of GET #foo then GET #foo."" happening, why?
// TODO: DAM's ## hash check, on same get ACK, producing multiple replies still, maybe JSON vs YSON?
// TMP note for now: viMZq1slG was chat LEX query #.
/*if(gun !== (tmp = msg.$) && (tmp = (tmp||'')._)){
if(tmp.Q){ tmp.Q[msg['#']] = ''; return } // chain does not need to ask for it again.
tmp.Q = {};
}*/
/*if(u === has){
if(at.Q){
//at.Q[msg['#']] = '';
//return;
}
at.Q = {};
}*/
var ctx = msg._||{}, DBG = ctx.DBG = msg.DBG;
DBG && (DBG.g = +new Date);
//console.log("GET:", get, node, has, at);
//if(!node && !at){ return root.on('get', msg) }
//if(has && node){ // replace 2 below lines to continue dev?
if(!node){ return root.on('get', msg) }
if(has){
if('string' != typeof has || u === node[has]){
if(!((at||'').next||'')[has]){ root.on('get', msg); return }
}
node = state_ify({}, has, state_is(node, has), node[has], soul);
// If we have a key in-memory, do we really need to fetch?
// Maybe... in case the in-memory key we have is a local write
// we still need to trigger a pull/merge from peers.
}
//Gun.window? Gun.obj.copy(node) : node; // HNPERF: If !browser bump Performance? Is this too dangerous to reference root graph? Copy / shallow copy too expensive for big nodes. Gun.obj.to(node); // 1 layer deep copy // Gun.obj.copy(node); // too slow on big nodes
node && ack(msg, node);
root.on('get', msg); // send GET to storage adapters.
}
function ack(msg, node){
var S = +new Date, ctx = msg._||{}, DBG = ctx.DBG = msg.DBG;
var to = msg['#'], id = text_rand(9), keys = Object.keys(node||'').sort(), soul = ((node||'')._||'')['#'], kl = keys.length, j = 0, root = msg.$._.root, F = (node === root.graph[soul]);
console.STAT && console.STAT(S, ((DBG||ctx).gk = +new Date) - S, 'got keys');
// PERF: Consider commenting this out to force disk-only reads for perf testing? // TODO: .keys( is slow
node && (function go(){
S = +new Date;
var i = 0, k, put = {}, tmp;
while(i < 9 && (k = keys[i++])){
state_ify(put, k, state_is(node, k), node[k], soul);
}
keys = keys.slice(i);
(tmp = {})[soul] = put; put = tmp;
var faith; if(F){ faith = function(){}; faith.ram = faith.faith = true; } // HNPERF: We're testing performance improvement by skipping going through security again, but this should be audited.
tmp = keys.length;
console.STAT && console.STAT(S, -(S - (S = +new Date)), 'got copied some');
DBG && (DBG.ga = +new Date);
root.on('in', {'@': to, '#': id, put: put, '%': (tmp? (id = text_rand(9)) : u), $: root.$, _: faith, DBG: DBG});
console.STAT && console.STAT(S, +new Date - S, 'got in');
if(!tmp){ return }
setTimeout.turn(go);
}());
if(!node){ root.on('in', {'@': msg['#']}) } // TODO: I don't think I like this, the default lS adapter uses this but "not found" is a sensitive issue, so should probably be handled more carefully/individually.
} Gun.on.get.ack = ack;
}());
;(function(){
Gun.chain.opt = function(opt){
opt = opt || {};
var gun = this, at = gun._, tmp = opt.peers || opt;
if(!Object.plain(opt)){ opt = {} }
if(!Object.plain(at.opt)){ at.opt = opt }
if('string' == typeof tmp){ tmp = [tmp] }
if(!Object.plain(at.opt.peers)){ at.opt.peers = {}}
if(tmp instanceof Array){
opt.peers = {};
tmp.forEach(function(url){
var p = {}; p.id = p.url = url;
opt.peers[url] = at.opt.peers[url] = at.opt.peers[url] || p;
})
}
obj_each(opt, function each(k){ var v = this[k];
if((this && this.hasOwnProperty(k)) || 'string' == typeof v || Object.empty(v)){ this[k] = v; return }
if(v && v.constructor !== Object && !(v instanceof Array)){ return }
obj_each(v, each);
});
at.opt.from = opt;
Gun.on('opt', at);
at.opt.uuid = at.opt.uuid || function uuid(l){ return Gun.state().toString(36).replace('.','') + String.random(l||12) }
return gun;
}
}());
var obj_each = function(o,f){ Object.keys(o).forEach(f,o) }, text_rand = String.random, turn = setTimeout.turn, valid = Gun.valid, state_is = Gun.state.is, state_ify = Gun.state.ify, u, empty = {}, C;
Gun.log = function(){ return (!Gun.log.off && C.log.apply(C, arguments)), [].slice.call(arguments).join(' ') };
Gun.warn = function(){ return (!Gun.log.off && !Gun.warn.off && C.warn.apply(C, arguments)), [].slice.call(arguments).join(' ') };
Gun.error = function(){ return (!Gun.log.off && !Gun.error.off && C.error.apply(C, arguments)), [].slice.call(arguments).join(' ') };
Gun.log.once = function(w,s,o){ return (o = Gun.log.once)[w] = o[w] || 0, o[w]++ || Gun.log(s) };
Gun.warn.once = function(w,s,o){ return (o = Gun.warn.once)[w] = o[w] || 0, o[w]++ || Gun.warn(s) };
Gun.error.once = function(w,s,o){ return (o = Gun.error.once)[w] = o[w] || 0, o[w]++ || Gun.error(s) };
if(typeof window !== "undefined"){ (window.GUN = window.Gun = Gun).window = window }
try{ if(typeof MODULE !== "undefined"){ MODULE.exports = Gun } }catch(e){}
module.exports = Gun;
(Gun.window||{}).console = (Gun.window||{}).console || {log: function(){}};
(C = console).only = function(i, s){ return (C.only.i && i === C.only.i && C.only.i++) && (C.log.apply(C, arguments) || s) };
;"Please do not remove welcome log unless you are paying for a monthly sponsorship, thanks!";
Gun.log.once("welcome", "Hello wonderful person! :) Thanks for using GUN, please ask for help on http://chat.gun.eco if anything takes you longer than 5min to figure out!");
})(USE, './root');
;USE(function(module){
var Gun = USE('./root');
Gun.chain.back = function(n, opt){ var tmp;
n = n || 1;
if(-1 === n || Infinity === n){
return this._.root.$;
} else
if(1 === n){
return (this._.back || this._).$;
}
var gun = this, at = gun._;
if(typeof n === 'string'){
n = n.split('.');
}
if(n instanceof Array){
var i = 0, l = n.length, tmp = at;
for(i; i < l; i++){
tmp = (tmp||empty)[n[i]];
}
if(u !== tmp){
return opt? gun : tmp;
} else
if((tmp = at.back)){
return tmp.$.back(n, opt);
}
return;
}
if('function' == typeof n){
var yes, tmp = {back: at};
while((tmp = tmp.back)
&& u === (yes = n(tmp, opt))){}
return yes;
}
if('number' == typeof n){
return (at.back || at).$.back(n - 1);
}
return this;
}
var empty = {}, u;
})(USE, './back');
;USE(function(module){
// WARNING: GUN is very simple, but the JavaScript chaining API around GUN
// is complicated and was extremely hard to build. If you port GUN to another
// language, consider implementing an easier API to build.
var Gun = USE('./root');
Gun.chain.chain = function(sub){
var gun = this, at = gun._, chain = new (sub || gun).constructor(gun), cat = chain._, root;
cat.root = root = at.root;
cat.id = ++root.once;
cat.back = gun._;
cat.on = Gun.on;
cat.on('in', Gun.on.in, cat); // For 'in' if I add my own listeners to each then I MUST do it before in gets called. If I listen globally for all incoming data instead though, regardless of individual listeners, I can transform the data there and then as well.
cat.on('out', Gun.on.out, cat); // However for output, there isn't really the global option. I must listen by adding my own listener individually BEFORE this one is ever called.
return chain;
}
function output(msg){
var put, get, at = this.as, back = at.back, root = at.root, tmp;
if(!msg.$){ msg.$ = at.$ }
this.to.next(msg);
if(at.err){ at.on('in', {put: at.put = u, $: at.$}); return }
if(get = msg.get){
/*if(u !== at.put){
at.on('in', at);
return;
}*/
if(root.pass){ root.pass[at.id] = at; } // will this make for buggy behavior elsewhere?
if(at.lex){ Object.keys(at.lex).forEach(function(k){ tmp[k] = at.lex[k] }, tmp = msg.get = msg.get || {}) }
if(get['#'] || at.soul){
get['#'] = get['#'] || at.soul;
//root.graph[get['#']] = root.graph[get['#']] || {_:{'#':get['#'],'>':{}}};
msg['#'] || (msg['#'] = text_rand(9)); // A3120 ?
back = (root.$.get(get['#'])._);
if(!(get = get['.'])){ // soul
tmp = back.ask && back.ask['']; // check if we have already asked for the full node
(back.ask || (back.ask = {}))[''] = back; // add a flag that we are now.
if(u !== back.put){ // if we already have data,
back.on('in', back); // send what is cached down the chain
if(tmp){ return } // and don't ask for it again.
}
msg.$ = back.$;
} else
if(obj_has(back.put, get)){ // TODO: support #LEX !
tmp = back.ask && back.ask[get];
(back.ask || (back.ask = {}))[get] = back.$.get(get)._;
back.on('in', {get: get, put: {'#': back.soul, '.': get, ':': back.put[get], '>': state_is(root.graph[back.soul], get)}});
if(tmp){ return }
}
/*put = (back.$.get(get)._);
if(!(tmp = put.ack)){ put.ack = -1 }
back.on('in', {
$: back.$,
put: Gun.state.ify({}, get, Gun.state(back.put, get), back.put[get]),
get: back.get
});
if(tmp){ return }
} else
if('string' != typeof get){
var put = {}, meta = (back.put||{})._;
Gun.obj.map(back.put, function(v,k){
if(!Gun.text.match(k, get)){ return }
put[k] = v;
})
if(!Gun.obj.empty(put)){
put._ = meta;
back.on('in', {$: back.$, put: put, get: back.get})
}
if(tmp = at.lex){
tmp = (tmp._) || (tmp._ = function(){});
if(back.ack < tmp.ask){ tmp.ask = back.ack }
if(tmp.ask){ return }
tmp.ask = 1;
}
}
*/
root.ask(ack, msg); // A3120 ?
return root.on('in', msg);
}
//if(root.now){ root.now[at.id] = root.now[at.id] || true; at.pass = {} }
if(get['.']){
if(at.get){
msg = {get: {'.': at.get}, $: at.$};
(back.ask || (back.ask = {}))[at.get] = msg.$._; // TODO: PERFORMANCE? More elegant way?
return back.on('out', msg);
}
msg = {get: at.lex? msg.get : {}, $: at.$};
return back.on('out', msg);
}
(at.ask || (at.ask = {}))[''] = at; //at.ack = at.ack || -1;
if(at.get){
get['.'] = at.get;
(back.ask || (back.ask = {}))[at.get] = msg.$._; // TODO: PERFORMANCE? More elegant way?
return back.on('out', msg);
}
}
return back.on('out', msg);
}; Gun.on.out = output;
function input(msg, cat){ cat = cat || this.as; // TODO: V8 may not be able to optimize functions with different parameter calls, so try to do benchmark to see if there is any actual difference.
var root = cat.root, gun = msg.$ || (msg.$ = cat.$), at = (gun||'')._ || empty, tmp = msg.put||'', soul = tmp['#'], key = tmp['.'], change = (u !== tmp['='])? tmp['='] : tmp[':'], state = tmp['>'] || -Infinity, sat; // eve = event, at = data at, cat = chain at, sat = sub at (children chains).
if(u !== msg.put && (u === tmp['#'] || u === tmp['.'] || (u === tmp[':'] && u === tmp['=']) || u === tmp['>'])){ // convert from old format
if(!valid(tmp)){
if(!(soul = ((tmp||'')._||'')['#'])){ console.warn("chain not yet supported for", tmp, '...', msg, cat); return; }
gun = cat.root.$.get(soul);
return setTimeout.each(Object.keys(tmp).sort(), function(k){ // TODO: .keys( is slow // BUG? ?Some re-in logic may depend on this being sync?
if('_' == k || u === (state = state_is(tmp, k))){ return }
cat.on('in', {$: gun, put: {'#': soul, '.': k, '=': tmp[k], '>': state}, VIA: msg});
});
}
cat.on('in', {$: at.back.$, put: {'#': soul = at.back.soul, '.': key = at.has || at.get, '=': tmp, '>': state_is(at.back.put, key)}, via: msg}); // TODO: This could be buggy! It assumes/approxes data, other stuff could have corrupted it.
return;
}
if((msg.seen||'')[cat.id]){ return } (msg.seen || (msg.seen = function(){}))[cat.id] = cat; // help stop some infinite loops
if(cat !== at){ // don't worry about this when first understanding the code, it handles changing contexts on a message. A soul chain will never have a different context.
Object.keys(msg).forEach(function(k){ tmp[k] = msg[k] }, tmp = {}); // make copy of message
tmp.get = cat.get || tmp.get;
if(!cat.soul && !cat.has){ // if we do not recognize the chain type
tmp.$$$ = tmp.$$$ || cat.$; // make a reference to wherever it came from.
} else
if(at.soul){ // a has (property) chain will have a different context sometimes if it is linked (to a soul chain). Anything that is not a soul or has chain, will always have different contexts.
tmp.$ = cat.$;
tmp.$$ = tmp.$$ || at.$;
}
msg = tmp; // use the message with the new context instead;
}
unlink(msg, cat);
if(((cat.soul/* && (cat.ask||'')['']*/) || msg.$$) && state >= state_is(root.graph[soul], key)){ // The root has an in-memory cache of the graph, but if our peer has asked for the data then we want a per deduplicated chain copy of the data that might have local edits on it.
(tmp = root.$.get(soul)._).put = state_ify(tmp.put, key, state, change, soul);
}
if(!at.soul /*&& (at.ask||'')['']*/ && state >= state_is(root.graph[soul], key) && (sat = (root.$.get(soul)._.next||'')[key])){ // Same as above here, but for other types of chains. // TODO: Improve perf by preventing echoes recaching.
sat.put = change; // update cache
if('string' == typeof (tmp = valid(change))){
sat.put = root.$.get(tmp)._.put || change; // share same cache as what we're linked to.
}
}
this.to && this.to.next(msg); // 1st API job is to call all chain listeners.
// TODO: Make input more reusable by only doing these (some?) calls if we are a chain we recognize? This means each input listener would be responsible for when listeners need to be called, which makes sense, as they might want to filter.
cat.any && setTimeout.each(Object.keys(cat.any), function(any){ (any = cat.any[any]) && any(msg) },0,99); // 1st API job is to call all chain listeners. // TODO: .keys( is slow // BUG: Some re-in logic may depend on this being sync.
cat.echo && setTimeout.each(Object.keys(cat.echo), function(lat){ (lat = cat.echo[lat]) && lat.on('in', msg) },0,99); // & linked at chains // TODO: .keys( is slow // BUG: Some re-in logic may depend on this being sync.
if(((msg.$$||'')._||at).soul){ // comments are linear, but this line of code is non-linear, so if I were to comment what it does, you'd have to read 42 other comments first... but you can't read any of those comments until you first read this comment. What!? // shouldn't this match link's check?
// is there cases where it is a $$ that we do NOT want to do the following?
if((sat = cat.next) && (sat = sat[key])){ // TODO: possible trick? Maybe have `ionmap` code set a sat? // TODO: Maybe we should do `cat.ask` instead? I guess does not matter.
tmp = {}; Object.keys(msg).forEach(function(k){ tmp[k] = msg[k] });
tmp.$ = (msg.$$||msg.$).get(tmp.get = key); delete tmp.$$; delete tmp.$$$;
sat.on('in', tmp);
}
}
link(msg, cat);
}; Gun.on.in = input;
function link(msg, cat){ cat = cat || this.as || msg.$._;
if(msg.$$ && this !== Gun.on){ return } // $$ means we came from a link, so we are at the wrong level, thus ignore it unless overruled manually by being called directly.
if(!msg.put || cat.soul){ return } // But you cannot overrule being linked to nothing, or trying to link a soul chain - that must never happen.
var put = msg.put||'', link = put['=']||put[':'], tmp;
var root = cat.root, tat = root.$.get(put['#']).get(put['.'])._;
if('string' != typeof (link = valid(link))){
if(this === Gun.on){ (tat.echo || (tat.echo = {}))[cat.id] = cat } // allow some chain to explicitly force linking to simple data.
return; // by default do not link to data that is not a link.
}
if((tat.echo || (tat.echo = {}))[cat.id] // we've already linked ourselves so we do not need to do it again. Except... (annoying implementation details)
&& !(root.pass||'')[cat.id]){ return } // if a new event listener was added, we need to make a pass through for it. The pass will be on the chain, not always the chain passed down.
if(tmp = root.pass){ if(tmp[link+cat.id]){ return } tmp[link+cat.id] = 1 } // But the above edge case may "pass through" on a circular graph causing infinite passes, so we hackily add a temporary check for that.
(tat.echo||(tat.echo={}))[cat.id] = cat; // set ourself up for the echo! // TODO: BUG? Echo to self no longer causes problems? Confirm.
if(cat.has){ cat.link = link }
var sat = root.$.get(tat.link = link)._; // grab what we're linking to.
(sat.echo || (sat.echo = {}))[tat.id] = tat; // link it.
var tmp = cat.ask||''; // ask the chain for what needs to be loaded next!
if(tmp[''] || cat.lex){ // we might need to load the whole thing // TODO: cat.lex probably has edge case bugs to it, need more test coverage.
sat.on('out', {get: {'#': link}});
}
setTimeout.each(Object.keys(tmp), function(get, sat){ // if sub chains are asking for data. // TODO: .keys( is slow // BUG? ?Some re-in logic may depend on this being sync?
if(!get || !(sat = tmp[get])){ return }
sat.on('out', {get: {'#': link, '.': get}}); // go get it.
},0,99);
}; Gun.on.link = link;
function unlink(msg, cat){ // ugh, so much code for seemingly edge case behavior.
var put = msg.put||'', change = (u !== put['='])? put['='] : put[':'], root = cat.root, link, tmp;
if(u === change){ // 1st edge case: If we have a brand new database, no data will be found.