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function processreq (req, pubkey, connection, keys) {
if (req.seq === 0 || req.seq) {
bog(req.author).then(feed => {
if (feed) {
open(feed[0]).then(msg => {
if (req.seq > msg.seq) {
var reqdiff = JSON.stringify({author: req.author, seq: msg.seq})
box(reqdiff, pubkey, keys).then(boxed => {
connection.send(JSON.stringify({
requester: keys.publicKey,
box: boxed
}))
})
}
if (req.seq < msg.seq) {
var endrange = feed.length - req.seq - 25
if (endrange < 0) {
endrange = feed.length - req.seq - 1
}
var baserange = feed.length - req.seq
var diff = JSON.stringify(
feed.slice(
endrange,
baserange)
)
box(diff, pubkey, keys).then(boxed => {
connection.send(JSON.stringify({
requester: keys.publicKey,
box: boxed
}))
})
}
})
}
})
}
if (Array.isArray(req)) {
open(req[0]).then(msg => {
localforage.getItem(msg.author).then(feed => {
if (!feed) {
localforage.setItem(msg.author, req)
localforage.getItem('log').then(log => {
if (!log) { var log = [] }
for (var i = req.length -1; i >= 0; --i) {
open(req[i]).then(opened => {
log.unshift(opened)
var src = window.location.hash.substring(1)
if ((src === msg.author) || (src === '')) {
var scroller = document.getElementById('scroller')
scroller.insertBefore(render(opened, keys), scroller.childNodes[1])
}
if (opened.seq === req.length) {
localforage.setItem('log', log)
}
})
}
})
}
if (feed) {
open(feed[0]).then(lastmsg => {
if (req.length + lastmsg.seq === msg.seq) {
var newlog = req.concat(feed)
localforage.setItem(msg.author, newlog)
localforage.getItem('log').then(log => {
if (!log) { var log = [] }
for (var i = req.length -1; i >= 0; --i) {
open(req[i]).then(opened => {
log.unshift(opened)
var src = window.location.hash.substring(1)
if ((src === msg.author) || (src === '')) {
var scroller = document.getElementById('scroller')
scroller.insertBefore(render(opened, keys), scroller.childNodes[1])
}
if (req.length + lastmsg.seq === opened.seq) {
localforage.setItem('log', log)
}
})
}
})
}
})
}
})
})
}
}
function getpubkey (connection, keys) {
connection.onopen = () => {
connection.send(JSON.stringify({
requester: keys.publicKey, sendpub: true
}))
}
connection.onmessage = (m) => {
localforage.setItem(m.origin, m.data)
}
}
function getfeed (feed, pubkey, connection, keys) {
bog(feed).then(log => {
var logseq = 0
connection.onopen = () => {
if (log) {
open(log[0]).then(msg => {
var string = JSON.stringify(msg)
box(string, pubkey, keys).then(boxed => {
connection.send(JSON.stringify({
requester: keys.publicKey,
box: boxed
}))
})
logseq = msg.seq
})
} else {
var msg = {
author: feed,
seq: logseq
}
box(JSON.stringify(msg), pubkey, keys).then(boxed => {
connection.send(JSON.stringify({
requester: keys.publicKey,
box: boxed
}))
})
}
}
connection.onmessage = (m) => {
var req = JSON.parse(m.data)
unbox(req.box, req.requester, keys).then(unboxed => {
var unboxedreq = JSON.parse(unboxed)
processreq(unboxedreq, pubkey, connection, keys)
})
}
})
}
function sync (feeds, keys) {
var pubs
localforage.getItem('pubs').then(pubs => {
if (!pubs) {
pubs = ['ws://' + location.hostname + ':8080', 'ws://bogbook.com']
localforage.setItem('pubs', pubs)
}
pubs.forEach(function (pub, index) {
setTimeout(function () {
var connection = new WebSocket(pub)
localforage.getItem(pub).then(pubkey => {
if (!pubkey) {
getpubkey(connection, keys)
}
if (pubkey) {
feeds.forEach(feed => {
getfeed(feed, pubkey, connection, keys)
})
}
})
}, index * 5000)
})
})
}
|
