You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1225 lines
38 KiB
JavaScript
1225 lines
38 KiB
JavaScript
import {generatePrivateKey, getEventHash, getPublicKey, nip19, signEvent} from 'nostr-tools';
|
|
import {publish, sub, unsubAll} from './relays';
|
|
import {bounce} from './utils.js';
|
|
import {zeroLeadingBitsCount} from './cryptoutils.js';
|
|
import {elem, parseTextContent} from './domutil.js';
|
|
import {dateTime, formatTime} from './timeutil.js';
|
|
// curl -H 'accept: application/nostr+json' https://relay.nostr.ch/
|
|
|
|
function onEvent(evt, relay) {
|
|
switch (evt.kind) {
|
|
case 0:
|
|
handleMetadata(evt, relay);
|
|
break;
|
|
case 1:
|
|
handleTextNote(evt, relay);
|
|
break;
|
|
case 2:
|
|
handleRecommendServer(evt, relay);
|
|
break;
|
|
case 3:
|
|
// handleContactList(evt, relay);
|
|
break;
|
|
case 7:
|
|
handleReaction(evt, relay);
|
|
default:
|
|
// console.log(`TODO: add support for event kind ${evt.kind}`/*, evt*/)
|
|
}
|
|
}
|
|
|
|
let pubkey = localStorage.getItem('pub_key') || (() => {
|
|
const privatekey = generatePrivateKey();
|
|
const pubkey = getPublicKey(privatekey);
|
|
localStorage.setItem('private_key', privatekey);
|
|
localStorage.setItem('pub_key', pubkey);
|
|
return pubkey;
|
|
})();
|
|
|
|
function sub24hFeed() {
|
|
sub({
|
|
cb: onEvent,
|
|
filter: {
|
|
kinds: [0, 1, 2, 7],
|
|
// until: Math.floor(Date.now() * 0.001),
|
|
since: Math.floor((Date.now() * 0.001) - (24 * 60 * 60)),
|
|
limit: 50,
|
|
}
|
|
});
|
|
}
|
|
|
|
function subNoteAndProfile(id) {
|
|
// view(`/${id}`); // assume text note
|
|
subTextNote(id);
|
|
subProfile(id);
|
|
}
|
|
|
|
function subTextNote(eventId) {
|
|
sub({
|
|
cb: onEvent,
|
|
filter: {
|
|
ids: [eventId],
|
|
kinds: [1],
|
|
limit: 1,
|
|
}
|
|
});
|
|
}
|
|
|
|
function subProfile(pubkey) {
|
|
sub({
|
|
cb: (evt, relay) => {
|
|
console.log('found profile, unsub subTextNote somehow')
|
|
// renderProfile(evt, relay);
|
|
// view('/[profile]');
|
|
},
|
|
filter: {
|
|
authors: [pubkey],
|
|
kinds: [0],
|
|
limit: 1,
|
|
}
|
|
});
|
|
// get notes for profile
|
|
sub({
|
|
cb: onEvent,
|
|
filter: {
|
|
authors: [pubkey],
|
|
kinds: [1],
|
|
limit: 50,
|
|
}
|
|
});
|
|
}
|
|
|
|
const containers = [
|
|
// {
|
|
// id: '/00527c2b28ea78446c148cb40cc6e442ea3d0945ff5a8b71076483398525b54d',
|
|
// view: Node,
|
|
// content: Node,
|
|
// dom: {}
|
|
// }
|
|
];
|
|
let activeContainerIndex = null;
|
|
|
|
const textNoteList = []; // could use indexDB
|
|
const eventRelayMap = {}; // eventId: [relay1, relay2]
|
|
|
|
const hasEventTag = tag => tag[0] === 'e';
|
|
const isReply = ([tag, , , marker]) => tag === 'e' && marker !== 'mention';
|
|
const isMention = ([tag, , , marker]) => tag === 'e' && marker === 'mention';
|
|
const hasEnoughPOW = ([tag, , commitment]) => {
|
|
return tag === 'nonce' && commitment >= fitlerDifficulty && zeroLeadingBitsCount(note.id) >= fitlerDifficulty;
|
|
};
|
|
const renderNote = (evt, i, sortedFeeds) => {
|
|
if (getViewElem(evt.id)) { // note already in view
|
|
return;
|
|
}
|
|
const article = createTextNote(evt, eventRelayMap[evt.id]);
|
|
if (i === 0) {
|
|
getViewContent().append(article);
|
|
} else {
|
|
getViewElem(sortedFeeds[i - 1].id).before(article);
|
|
}
|
|
setViewElem(evt.id, article);
|
|
};
|
|
|
|
const renderFeed = bounce(() => {
|
|
const now = Math.floor(Date.now() * 0.001);
|
|
textNoteList
|
|
// dont render notes from the future
|
|
.filter(note => note.created_at <= now)
|
|
// if difficulty filter is configured dont render notes with too little pow
|
|
.filter(note => !fitlerDifficulty || note.tags.some(hasEnoughPOW))
|
|
.sort(sortByCreatedAt)
|
|
.reverse()
|
|
.forEach(renderNote);
|
|
}, 17); // (16.666 rounded, an arbitrary value to limit updates to max 60x per s)
|
|
|
|
function handleTextNote(evt, relay) {
|
|
if (eventRelayMap[evt.id]) {
|
|
eventRelayMap[evt.id] = [relay, ...(eventRelayMap[evt.id])];
|
|
} else {
|
|
eventRelayMap[evt.id] = [relay];
|
|
const evtWithNip19 = {
|
|
nip19: {
|
|
note: nip19.noteEncode(evt.id),
|
|
npub: nip19.npubEncode(evt.pubkey),
|
|
},
|
|
...evt
|
|
};
|
|
if (evt.tags.some(hasEventTag)) {
|
|
handleReply(evtWithNip19, relay);
|
|
} else {
|
|
textNoteList.push(evtWithNip19);
|
|
}
|
|
}
|
|
if (!getViewElem(evt.id)) {
|
|
renderFeed();
|
|
}
|
|
}
|
|
|
|
const replyList = [];
|
|
|
|
function handleReply(evt, relay) {
|
|
if (
|
|
getViewElem(evt.id) // already rendered probably received from another relay
|
|
|| evt.tags.some(isMention) // ignore mentions for now
|
|
) {
|
|
return;
|
|
}
|
|
const replyTo = getReplyTo(evt);
|
|
const evtWithReplyTo = {replyTo, ...evt};
|
|
replyList.push(evtWithReplyTo);
|
|
renderReply(evtWithReplyTo, relay);
|
|
}
|
|
|
|
function renderReply(evt, relay) {
|
|
const parent = getViewElem(evt.replyTo);
|
|
if (!parent) { // root article has not been rendered
|
|
return;
|
|
}
|
|
let replyContainer = parent.querySelector('.mobx-replies');
|
|
if (!replyContainer) {
|
|
replyContainer = elem('div', {className: 'mobx-replies'});
|
|
parent.append(replyContainer);
|
|
}
|
|
const reply = createTextNote(evt, relay);
|
|
replyContainer.append(reply);
|
|
setViewElem(evt.id, reply);
|
|
}
|
|
|
|
const reactionMap = {};
|
|
|
|
const getReactionList = (id) => {
|
|
return reactionMap[id]?.map(({content}) => content) || [];
|
|
};
|
|
|
|
function handleReaction(evt, relay) {
|
|
// last id is the note that is being reacted to https://github.com/nostr-protocol/nips/blob/master/25.md
|
|
const lastEventTag = evt.tags.filter(hasEventTag).at(-1);
|
|
if (!lastEventTag || !evt.content.length) {
|
|
// ignore reactions with no content
|
|
return;
|
|
}
|
|
const [, eventId] = lastEventTag;
|
|
if (reactionMap[eventId]) {
|
|
if (reactionMap[eventId].find(reaction => reaction.id === evt.id)) {
|
|
// already received this reaction from a different relay
|
|
return;
|
|
}
|
|
reactionMap[eventId] = [evt, ...(reactionMap[eventId])];
|
|
} else {
|
|
reactionMap[eventId] = [evt];
|
|
}
|
|
const article = getViewElem(eventId);
|
|
if (article) {
|
|
const button = article.querySelector('button[name="star"]');
|
|
const reactions = button.querySelector('[data-reactions]');
|
|
reactions.textContent = reactionMap[eventId].length;
|
|
if (evt.pubkey === pubkey) {
|
|
const star = button.querySelector('img[src*="star"]');
|
|
star?.setAttribute('src', '/assets/star-fill.svg');
|
|
star?.setAttribute('title', getReactionList(eventId).join(' '));
|
|
}
|
|
}
|
|
}
|
|
|
|
const restoredReplyTo = localStorage.getItem('reply_to');
|
|
|
|
const sortByCreatedAt = (evt1, evt2) => {
|
|
if (evt1.created_at === evt2.created_at) {
|
|
// console.log('TODO: OMG exactly at the same time, figure out how to sort then', evt1, evt2);
|
|
}
|
|
return evt1.created_at > evt2.created_at ? -1 : 1;
|
|
};
|
|
|
|
function rerenderFeed() {
|
|
const domMap = getViewDom(); // TODO: this is only the current view, do this for all views
|
|
Object.keys(domMap).forEach(key => delete domMap[key]);
|
|
getViewContent().replaceChildren([]);
|
|
renderFeed();
|
|
}
|
|
|
|
setInterval(() => {
|
|
document.querySelectorAll('time[datetime]').forEach(timeElem => {
|
|
timeElem.textContent = formatTime(new Date(timeElem.dateTime));
|
|
});
|
|
}, 10000);
|
|
|
|
const getNoxyUrl = (type, url, id, relay) => {
|
|
if (!isHttpUrl(url)) {
|
|
return false;
|
|
}
|
|
const link = new URL(`https://noxy.nostr.ch/${type}`);
|
|
link.searchParams.set('id', id);
|
|
link.searchParams.set('relay', relay);
|
|
link.searchParams.set('url', url);
|
|
return link;
|
|
}
|
|
|
|
const fetchQue = [];
|
|
let fetchPending;
|
|
const fetchNext = (href, id, relay) => {
|
|
const noxy = getNoxyUrl('meta', href, id, relay);
|
|
const previewId = noxy.searchParams.toString();
|
|
if (fetchPending) {
|
|
fetchQue.push({href, id, relay});
|
|
return previewId;
|
|
}
|
|
fetchPending = fetch(noxy.href)
|
|
.then(data => {
|
|
if (data.status === 200) {
|
|
return data.json();
|
|
}
|
|
// fetchQue.push({href, id, relay}); // could try one more time
|
|
return Promise.reject(data);
|
|
})
|
|
.then(meta => {
|
|
const container = document.getElementById(previewId);
|
|
const content = [];
|
|
if (meta.images[0]) {
|
|
content.push(elem('img', {className: 'preview-image', loading: 'lazy', src: getNoxyUrl('data', meta.images[0], id, relay).href}));
|
|
}
|
|
if (meta.title) {
|
|
content.push(elem('h2', {className: 'preview-title'}, meta.title));
|
|
}
|
|
if (meta.descr) {
|
|
content.push(elem('p', {className: 'preview-descr'}, meta.descr))
|
|
}
|
|
if (content.length) {
|
|
container.append(elem('a', {href, rel: 'noopener noreferrer', target: '_blank'}, content));
|
|
container.classList.add('preview-loaded');
|
|
}
|
|
})
|
|
.finally(() => {
|
|
fetchPending = false;
|
|
if (fetchQue.length) {
|
|
const {href, id, relay} = fetchQue.shift();
|
|
return fetchNext(href, id, relay);
|
|
}
|
|
})
|
|
.catch(err => err.text && err.text())
|
|
.then(errMsg => errMsg && console.warn(errMsg));
|
|
return previewId;
|
|
};
|
|
|
|
function linkPreview(href, id, relay) {
|
|
if ((/\.(gif|jpe?g|png)$/i).test(href)) {
|
|
return elem('div', {},
|
|
[elem('img', {className: 'preview-image-only', loading: 'lazy', src: getNoxyUrl('data', href, id, relay).href})]
|
|
);
|
|
}
|
|
const previewId = fetchNext(href, id, relay);
|
|
return elem('div', {
|
|
className: 'preview',
|
|
id: previewId
|
|
});
|
|
}
|
|
|
|
const writeInput = document.querySelector('textarea[name="message"]');
|
|
|
|
function createTextNote(evt, relay) {
|
|
const {host, img, name, time, userName} = getMetadata(evt, relay);
|
|
const replies = replyList.filter(({replyTo}) => replyTo === evt.id);
|
|
// const isLongContent = evt.content.trimRight().length > 280;
|
|
// const content = isLongContent ? evt.content.slice(0, 280) : evt.content;
|
|
const hasReactions = reactionMap[evt.id]?.length > 0;
|
|
const didReact = hasReactions && !!reactionMap[evt.id].find(reaction => reaction.pubkey === pubkey);
|
|
const replyFeed = replies[0] ? replies.sort(sortByCreatedAt).map(e => setViewElem(e.id, createTextNote(e, relay))) : [];
|
|
const [content, {firstLink}] = parseTextContent(evt.content);
|
|
const body = elem('div', {className: 'mbox-body'}, [
|
|
elem('header', {
|
|
className: 'mbox-header',
|
|
title: `User: ${userName}\n${time}\n\nUser pubkey: ${evt.pubkey}\n\nRelay: ${host}\n\nEvent-id: ${evt.id}
|
|
${evt.tags.length ? `\nTags ${JSON.stringify(evt.tags)}\n` : ''}
|
|
${evt.content}`
|
|
}, [
|
|
elem('a', {className: `mbox-username${name ? ' mbox-kind0-name' : ''}`, href: `/${evt.nip19.npub}`, data: {nav: '/[profile]'}}, name || userName),
|
|
' ',
|
|
elem('a', {href: `/${evt.nip19.note}`, data: {nav: '/[note]'}}, formatTime(time)),
|
|
]),
|
|
elem('div', {/* data: isLongContent ? {append: evt.content.slice(280)} : null*/}, [
|
|
...content,
|
|
(firstLink && validatePow(evt)) ? linkPreview(firstLink, evt.id, relay) : '',
|
|
]),
|
|
elem('div', {className: 'buttons'}, [
|
|
elem('button', {name: 'reply', type: 'button'}, [
|
|
elem('img', {height: 24, width: 24, src: '/assets/comment.svg'})
|
|
]),
|
|
elem('button', {name: 'star', type: 'button'}, [
|
|
elem('img', {
|
|
alt: didReact ? '✭' : '✩', // ♥
|
|
height: 24, width: 24,
|
|
src: `/assets/${didReact ? 'star-fill' : 'star'}.svg`,
|
|
title: getReactionList(evt.id).join(' '),
|
|
}),
|
|
elem('small', {data: {reactions: ''}}, hasReactions ? reactionMap[evt.id].length : ''),
|
|
]),
|
|
]),
|
|
]);
|
|
if (restoredReplyTo === evt.id) {
|
|
appendReplyForm(body.querySelector('.buttons'));
|
|
requestAnimationFrame(() => updateElemHeight(writeInput));
|
|
}
|
|
return renderArticle([
|
|
elem('div', {className: 'mbox-img'}, [img]), body,
|
|
replies[0] ? elem('div', {className: 'mobx-replies'}, replyFeed.reverse()) : '',
|
|
], {data: {id: evt.id, pubkey: evt.pubkey, relay}});
|
|
}
|
|
|
|
const sortEventCreatedAt = (created_at) => (
|
|
{created_at: a},
|
|
{created_at: b},
|
|
) => (
|
|
Math.abs(a - created_at) < Math.abs(b - created_at) ? -1 : 1
|
|
);
|
|
|
|
function isWssUrl(string) {
|
|
try {
|
|
return 'wss:' === new URL(string).protocol;
|
|
} catch (err) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function handleRecommendServer(evt, relay) {
|
|
if (getViewElem(evt.id) || !isWssUrl(evt.content)) {
|
|
return;
|
|
}
|
|
const art = renderRecommendServer(evt, relay);
|
|
if (textNoteList.length < 2) {
|
|
getViewContent().append(art);
|
|
} else {
|
|
const closestTextNotes = textNoteList
|
|
.filter(note => !fitlerDifficulty || note.tags.some(([tag, , commitment]) => tag === 'nonce' && commitment >= fitlerDifficulty))
|
|
.sort(sortEventCreatedAt(evt.created_at));
|
|
getViewElem(closestTextNotes[0].id)?.after(art); // TODO: note might not be in the dom yet, recommendedServers could be controlled by renderFeed
|
|
}
|
|
setViewElem(evt.id, art);
|
|
}
|
|
|
|
function handleContactList(evt, relay) {
|
|
if (getViewElem(evt.id)) {
|
|
return;
|
|
}
|
|
const art = renderUpdateContact(evt, relay);
|
|
if (textNoteList.length < 2) {
|
|
getViewContent().append(art);
|
|
return;
|
|
}
|
|
const closestTextNotes = textNoteList.sort(sortEventCreatedAt(evt.created_at));
|
|
getViewElem(closestTextNotes[0].id).after(art);
|
|
setViewElem(evt.id, art);
|
|
// const user = userList.find(u => u.pupkey === evt.pubkey);
|
|
// if (user) {
|
|
// console.log(`TODO: add contact list for ${evt.pubkey.slice(0, 8)} on ${relay}`, evt.tags);
|
|
// } else {
|
|
// tempContactList[relay] = tempContactList[relay]
|
|
// ? [...tempContactList[relay], evt]
|
|
// : [evt];
|
|
// }
|
|
}
|
|
|
|
function renderUpdateContact(evt, relay) {
|
|
const {img, time, userName} = getMetadata(evt, relay);
|
|
const body = elem('div', {className: 'mbox-body', title: dateTime.format(time)}, [
|
|
elem('header', {className: 'mbox-header'}, [
|
|
elem('small', {}, []),
|
|
]),
|
|
elem('pre', {title: JSON.stringify(evt.content)}, [
|
|
elem('strong', {}, userName),
|
|
' updated contacts: ',
|
|
JSON.stringify(evt.tags),
|
|
]),
|
|
]);
|
|
return renderArticle([img, body], {className: 'mbox-updated-contact', data: {id: evt.id, pubkey: evt.pubkey, relay}});
|
|
}
|
|
|
|
function renderRecommendServer(evt, relay) {
|
|
const {img, name, time, userName} = getMetadata(evt, relay);
|
|
const body = elem('div', {className: 'mbox-body', title: dateTime.format(time)}, [
|
|
elem('header', {className: 'mbox-header'}, [
|
|
elem('small', {}, [
|
|
elem('strong', {}, userName)
|
|
]),
|
|
]),
|
|
` recommends server: ${evt.content}`,
|
|
]);
|
|
return renderArticle([
|
|
elem('div', {className: 'mbox-img'}, [img]), body
|
|
], {className: 'mbox-recommend-server', data: {id: evt.id, pubkey: evt.pubkey}});
|
|
}
|
|
|
|
function renderArticle(content, props = {}) {
|
|
const className = props.className ? ['mbox', props?.className].join(' ') : 'mbox';
|
|
return elem('article', {...props, className}, content);
|
|
}
|
|
|
|
const userList = [];
|
|
// const tempContactList = {};
|
|
|
|
function parseContent(content) {
|
|
try {
|
|
return JSON.parse(content);
|
|
} catch(err) {
|
|
console.log(evt);
|
|
console.error(err);
|
|
}
|
|
}
|
|
|
|
function handleMetadata(evt, relay) {
|
|
const content = parseContent(evt.content);
|
|
if (content) {
|
|
setMetadata(evt, relay, content);
|
|
}
|
|
}
|
|
|
|
function setMetadata(evt, relay, content) {
|
|
let user = userList.find(u => u.pubkey === evt.pubkey);
|
|
const picture = getNoxyUrl('data', content.picture, evt.id, relay).href;
|
|
if (!user) {
|
|
user = {
|
|
metadata: {[relay]: content},
|
|
...(content.picture && {picture}),
|
|
pubkey: evt.pubkey,
|
|
};
|
|
userList.push(user);
|
|
} else {
|
|
user.metadata[relay] = {
|
|
...user.metadata[relay],
|
|
timestamp: evt.created_at,
|
|
...content,
|
|
};
|
|
// use only the first profile pic (for now), different pics on each releay are not supported yet
|
|
if (!user.picture) {
|
|
user.picture = picture;
|
|
}
|
|
}
|
|
// update profile images
|
|
if (user.picture && validatePow(evt)) {
|
|
document.body
|
|
.querySelectorAll(`canvas[data-pubkey="${evt.pubkey}"]`)
|
|
.forEach(canvas => (canvas.parentNode.replaceChild(elem('img', {src: user.picture}), canvas)));
|
|
}
|
|
if (user.metadata[relay].name) {
|
|
document.body
|
|
.querySelectorAll(`[data-id="${evt.pubkey}"] .mbox-username:not(.mbox-kind0-name)`)
|
|
.forEach(username => {
|
|
username.textContent = user.metadata[relay].name;
|
|
username.classList.add('mbox-kind0-name');
|
|
});
|
|
}
|
|
// if (tempContactList[relay]) {
|
|
// const updates = tempContactList[relay].filter(update => update.pubkey === evt.pubkey);
|
|
// if (updates) {
|
|
// console.log('TODO: add contact list (kind 3)', updates);
|
|
// }
|
|
// }
|
|
}
|
|
|
|
function isHttpUrl(string) {
|
|
try {
|
|
return ['http:', 'https:'].includes(new URL(string).protocol);
|
|
} catch (err) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
const getHost = (url) => {
|
|
try {
|
|
return new URL(url).host;
|
|
} catch(err) {
|
|
return err;
|
|
}
|
|
}
|
|
|
|
const elemCanvas = (text) => {
|
|
const canvas = elem('canvas', {height: 80, width: 80, data: {pubkey: text}});
|
|
const context = canvas.getContext('2d');
|
|
const color = `#${text.slice(0, 6)}`;
|
|
context.fillStyle = color;
|
|
context.fillRect(0, 0, 80, 80);
|
|
context.fillStyle = '#111';
|
|
context.fillRect(0, 50, 80, 32);
|
|
context.font = 'bold 18px monospace';
|
|
if (color === '#000000') {
|
|
context.fillStyle = '#fff';
|
|
}
|
|
context.fillText(text.slice(0, 8), 2, 46);
|
|
return canvas;
|
|
}
|
|
|
|
function getMetadata(evt, relay) {
|
|
const host = getHost(relay);
|
|
const user = userList.find(user => user.pubkey === evt.pubkey);
|
|
const userImg = user?.picture;
|
|
const name = user?.metadata[relay]?.name;
|
|
const userName = name || evt.pubkey.slice(0, 8);
|
|
const userAbout = user?.metadata[relay]?.about || '';
|
|
const img = (userImg && validatePow(evt)) ? elem('img', {
|
|
alt: `${userName} ${host}`,
|
|
loading: 'lazy',
|
|
src: userImg,
|
|
title: `${userName} on ${host} ${userAbout}`,
|
|
}) : elemCanvas(evt.pubkey);
|
|
const time = new Date(evt.created_at * 1000);
|
|
return {host, img, name, time, userName};
|
|
}
|
|
|
|
/**
|
|
* find reply-to ID according to nip-10, find marked reply or root tag or
|
|
* fallback to positional (last) e tag or return null
|
|
* @param {event} evt
|
|
* @returns replyToID | null
|
|
*/
|
|
function getReplyTo(evt) {
|
|
const eventTags = evt.tags.filter(isReply);
|
|
const withReplyMarker = eventTags.filter(([, , , marker]) => marker === 'reply');
|
|
if (withReplyMarker.length === 1) {
|
|
return withReplyMarker[0][1];
|
|
}
|
|
const withRootMarker = eventTags.filter(([, , , marker]) => marker === 'root');
|
|
if (withReplyMarker.length === 0 && withRootMarker.length === 1) {
|
|
return withRootMarker[0][1];
|
|
}
|
|
// fallback to deprecated positional 'e' tags (nip-10)
|
|
return eventTags.length ? eventTags.at(-1)[1] : null;
|
|
}
|
|
|
|
const writeForm = document.querySelector('#writeForm');
|
|
|
|
const elemShrink = () => {
|
|
const height = writeInput.style.height || writeInput.getBoundingClientRect().height;
|
|
const shrink = elem('div', {className: 'shrink-out'});
|
|
shrink.style.height = `${height}px`;
|
|
shrink.addEventListener('animationend', () => shrink.remove(), {once: true});
|
|
return shrink;
|
|
}
|
|
|
|
writeInput.addEventListener('focusout', () => {
|
|
const reply_to = localStorage.getItem('reply_to');
|
|
if (reply_to && writeInput.value === '') {
|
|
writeInput.addEventListener('transitionend', (event) => {
|
|
if (!reply_to || reply_to === localStorage.getItem('reply_to') && !writeInput.style.height) { // should prob use some class or data-attr instead of relying on height
|
|
writeForm.after(elemShrink());
|
|
writeForm.remove();
|
|
localStorage.removeItem('reply_to');
|
|
}
|
|
}, {once: true});
|
|
}
|
|
});
|
|
|
|
function appendReplyForm(el) {
|
|
writeForm.before(elemShrink());
|
|
writeInput.blur();
|
|
writeInput.style.removeProperty('height');
|
|
el.after(writeForm);
|
|
if (writeInput.value && !writeInput.value.trimRight()) {
|
|
writeInput.value = '';
|
|
} else {
|
|
requestAnimationFrame(() => updateElemHeight(writeInput));
|
|
}
|
|
requestAnimationFrame(() => writeInput.focus());
|
|
}
|
|
|
|
const lockScroll = () => document.body.style.overflow = 'hidden';
|
|
const unlockScroll = () => document.body.style.removeProperty('overflow');
|
|
|
|
let fitlerDifficulty = JSON.parse(localStorage.getItem('filter_difficulty')) ?? 0;
|
|
const filterDifficultyInput = document.querySelector('#filterDifficulty');
|
|
const filterDifficultyDisplay = document.querySelector('[data-display="filter_difficulty"]');
|
|
filterDifficultyInput.addEventListener('input', (e) => {
|
|
localStorage.setItem('filter_difficulty', filterDifficultyInput.valueAsNumber);
|
|
fitlerDifficulty = filterDifficultyInput.valueAsNumber;
|
|
filterDifficultyDisplay.textContent = filterDifficultyInput.value;
|
|
rerenderFeed();
|
|
});
|
|
filterDifficultyInput.value = fitlerDifficulty;
|
|
filterDifficultyDisplay.textContent = filterDifficultyInput.value;
|
|
|
|
// arbitrary difficulty default, still experimenting.
|
|
let difficulty = JSON.parse(localStorage.getItem('mining_target')) ?? 16;
|
|
const miningTargetInput = document.querySelector('#miningTarget');
|
|
miningTargetInput.addEventListener('input', (e) => {
|
|
localStorage.setItem('mining_target', miningTargetInput.valueAsNumber);
|
|
difficulty = miningTargetInput.valueAsNumber;
|
|
});
|
|
miningTargetInput.value = difficulty;
|
|
|
|
let timeout = JSON.parse(localStorage.getItem('mining_timeout')) ?? 5;
|
|
const miningTimeoutInput = document.querySelector('#miningTimeout');
|
|
miningTimeoutInput.addEventListener('input', (e) => {
|
|
localStorage.setItem('mining_timeout', miningTimeoutInput.valueAsNumber);
|
|
timeout = miningTimeoutInput.valueAsNumber;
|
|
});
|
|
miningTimeoutInput.value = timeout;
|
|
|
|
async function upvote(eventId, eventPubkey) {
|
|
const note = replyList.find(r => r.id === eventId) || textNoteList.find(n => n.id === (eventId));
|
|
const tags = [
|
|
...note.tags
|
|
.filter(tag => ['e', 'p'].includes(tag[0])) // take e and p tags from event
|
|
.map(([a, b]) => [a, b]), // drop optional (nip-10) relay and marker fields
|
|
['e', eventId], ['p', eventPubkey], // last e and p tag is the id and pubkey of the note being reacted to (nip-25)
|
|
];
|
|
const article = getViewElem(eventId);
|
|
const reactionBtn = article.querySelector('[name="star"]');
|
|
const statusElem = article.querySelector('[data-reactions]');
|
|
reactionBtn.disabled = true;
|
|
const newReaction = await powEvent({
|
|
kind: 7,
|
|
pubkey, // TODO: lib could check that this is the pubkey of the key to sign with
|
|
content: '+',
|
|
tags,
|
|
created_at: Math.floor(Date.now() * 0.001),
|
|
}, {difficulty, statusElem, timeout}).catch(console.warn);
|
|
if (!newReaction) {
|
|
statusElem.textContent = reactionMap[eventId]?.length;
|
|
reactionBtn.disabled = false;
|
|
return;
|
|
}
|
|
const privatekey = localStorage.getItem('private_key');
|
|
const sig = signEvent(newReaction, privatekey);
|
|
// TODO: validateEvent
|
|
if (sig) {
|
|
statusElem.textContent = 'publishing…';
|
|
publish({...newReaction, sig}, (relay, error) => {
|
|
if (error) {
|
|
return console.error(error, relay);
|
|
}
|
|
console.info(`event published by ${relay}`);
|
|
});
|
|
reactionBtn.disabled = false;
|
|
}
|
|
}
|
|
|
|
// send
|
|
const sendStatus = document.querySelector('#sendstatus');
|
|
const onSendError = err => sendStatus.textContent = err.message;
|
|
const publishBtn = document.querySelector('#publish');
|
|
writeForm.addEventListener('submit', async (e) => {
|
|
e.preventDefault();
|
|
// const pubkey = localStorage.getItem('pub_key');
|
|
const privatekey = localStorage.getItem('private_key');
|
|
if (!pubkey || !privatekey) {
|
|
return onSendError(new Error('no pubkey/privatekey'));
|
|
}
|
|
const content = writeInput.value.trimRight();
|
|
if (!content) {
|
|
return onSendError(new Error('message is empty'));
|
|
}
|
|
const replyTo = localStorage.getItem('reply_to');
|
|
const close = () => {
|
|
sendStatus.textContent = '';
|
|
writeInput.value = '';
|
|
writeInput.style.removeProperty('height');
|
|
publishBtn.disabled = true;
|
|
if (replyTo) {
|
|
localStorage.removeItem('reply_to');
|
|
publishView.append(writeForm);
|
|
}
|
|
publishView.hidden = true;
|
|
};
|
|
const tags = replyTo ? [['e', replyTo]] : []; // , eventRelayMap[replyTo][0]
|
|
const newEvent = await powEvent({
|
|
kind: 1,
|
|
content,
|
|
pubkey,
|
|
tags,
|
|
created_at: Math.floor(Date.now() * 0.001),
|
|
}, {difficulty, statusElem: sendStatus, timeout}).catch(console.warn);
|
|
if (!newEvent) {
|
|
close();
|
|
return;
|
|
}
|
|
const sig = signEvent(newEvent, privatekey);
|
|
// TODO validateEvent
|
|
if (sig) {
|
|
sendStatus.textContent = 'publishing…';
|
|
publish({...newEvent, sig}, (relay, error) => {
|
|
if (error) {
|
|
return console.log(error, relay);
|
|
}
|
|
console.info(`publish request sent to ${relay}`);
|
|
close();
|
|
});
|
|
}
|
|
});
|
|
|
|
writeInput.addEventListener('input', () => {
|
|
publishBtn.disabled = !writeInput.value.trimRight();
|
|
updateElemHeight(writeInput);
|
|
});
|
|
writeInput.addEventListener('blur', () => sendStatus.textContent = '');
|
|
|
|
function updateElemHeight(el) {
|
|
el.style.removeProperty('height');
|
|
if (el.value) {
|
|
el.style.paddingBottom = 0;
|
|
el.style.paddingTop = 0;
|
|
el.style.height = el.scrollHeight + 'px';
|
|
el.style.removeProperty('padding-bottom');
|
|
el.style.removeProperty('padding-top');
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
function getViewContent() {
|
|
return containers[activeContainerIndex]?.content;
|
|
}
|
|
|
|
function getViewDom() {
|
|
return containers[activeContainerIndex]?.dom;
|
|
}
|
|
|
|
function getViewElem(key) {
|
|
return containers[activeContainerIndex]?.dom[key];
|
|
}
|
|
|
|
function setViewElem(key, node) {
|
|
const container = containers[activeContainerIndex];
|
|
if (container) {
|
|
container.dom[key] = node;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
const mainContainer = document.querySelector('main');
|
|
|
|
const getContainer = (containers, route) => {
|
|
let container = containers.find(c => c.route === route);
|
|
if (container) {
|
|
return container;
|
|
}
|
|
const content = elem('div', {className: 'content'});
|
|
const view = elem('section', {className: 'view'}, [content]);
|
|
mainContainer.append(view);
|
|
container = {route, view, content, dom: {}};
|
|
containers.push(container);
|
|
return container;
|
|
};
|
|
|
|
document.body.onload = () => console.log('------------ pageload ------------')
|
|
|
|
function view(route) {
|
|
const active = containers[activeContainerIndex];
|
|
active?.view.classList.remove('view-active');
|
|
const nextContainer = getContainer(containers, route);
|
|
const nextContainerIndex = containers.indexOf(nextContainer);
|
|
if (nextContainerIndex === activeContainerIndex) {
|
|
return;
|
|
}
|
|
if (active) {
|
|
nextContainer.view.classList.add('view-next');
|
|
}
|
|
requestAnimationFrame(() => {
|
|
requestAnimationFrame(() => {
|
|
nextContainer.view.classList.remove('view-next', 'view-prev');
|
|
nextContainer.view.classList.add('view-active');
|
|
});
|
|
// // console.log(activeContainerIndex, nextContainerIndex);
|
|
getViewContent()?.querySelectorAll('.view-prev').forEach(prev => {
|
|
prev.classList.remove('view-prev');
|
|
prev.classList.add('view-next');
|
|
});
|
|
active?.view.classList.add(nextContainerIndex < activeContainerIndex ? 'view-next' : 'view-prev');
|
|
activeContainerIndex = nextContainerIndex;
|
|
});
|
|
}
|
|
|
|
function navigate(route) {
|
|
if (typeof route === 'string') {
|
|
view(route);
|
|
history.pushState({}, '', route);
|
|
return;
|
|
}
|
|
if (route.pubkey) {
|
|
view(`/${route.pubkey}`);
|
|
history.pushState(route, '', `/${route.pubkey}`);
|
|
return;
|
|
}
|
|
if (route.note) {
|
|
view(`/${route.note}`);
|
|
history.pushState(route, '', `/${route.note}`);
|
|
return;
|
|
}
|
|
if (route.pubOrNote) {
|
|
view(`/${route.pubOrNote}`);
|
|
history.pushState(route, '', `/${route.pubOrNote}`);
|
|
return;
|
|
}
|
|
console.warn('unhandeleded', route);
|
|
}
|
|
|
|
// onload
|
|
switch(location.pathname) {
|
|
case '/':
|
|
sub24hFeed();
|
|
navigate('/');
|
|
break;
|
|
default:
|
|
const pubOrNote = location.pathname.slice(1);
|
|
if (pubOrNote.length === 64 && pubOrNote.match(/^[0-9a-f]+$/)) {
|
|
navigate({pubOrNote});
|
|
subNoteAndProfile(pubOrNote);
|
|
}
|
|
break;
|
|
}
|
|
|
|
window.addEventListener('popstate', (event) => {
|
|
// console.log(`popstate: ${location.pathname}, state: ${JSON.stringify(event.state)}`);
|
|
unsubAll();
|
|
if (event.state?.pubkey) {
|
|
subProfile(event.state.pubkey);
|
|
view(`/${event.state.pubkey}`);
|
|
return;
|
|
}
|
|
if (event.state?.pubOrNote) {
|
|
subNoteAndProfile(event.state.pubOrNote);
|
|
view(`/${event.state.pubOrNote}`); // assuming note
|
|
return;
|
|
}
|
|
if (event.state?.note) {
|
|
subTextNote(event.state.note);
|
|
view(`/${event.state.note}`); // assuming note
|
|
return;
|
|
}
|
|
if (location.pathname === '/') {
|
|
sub24hFeed();
|
|
view('/');
|
|
return;
|
|
}
|
|
});
|
|
|
|
const settingsView = document.querySelector('#settings');
|
|
const publishView = document.querySelector('#newNote');
|
|
|
|
document.body.addEventListener('click', (e) => {
|
|
const a = e.target.closest('a');
|
|
const pubkey = e.target.closest('[data-pubkey]')?.dataset.pubkey;
|
|
const id = e.target.closest('[data-id]')?.dataset.id;
|
|
if (a) {
|
|
if ('nav' in a.dataset) {
|
|
e.preventDefault();
|
|
if (!settingsView.hidden) {
|
|
settingsView.hidden = true;
|
|
}
|
|
if (!publishView.hidden) {
|
|
publishView.hidden = true;
|
|
}
|
|
const href = a.getAttribute('href');
|
|
switch(href) {
|
|
case '/':
|
|
navigate('/');
|
|
unsubAll();
|
|
sub24hFeed();
|
|
break;
|
|
default:
|
|
switch(a.dataset.nav) {
|
|
case '/[profile]':
|
|
unsubAll();
|
|
subProfile(pubkey);
|
|
navigate({pubkey});
|
|
break;
|
|
case '/[note]':
|
|
unsubAll();
|
|
subTextNote(id)
|
|
navigate({note: id});
|
|
break;
|
|
default:
|
|
console.warn('what route is that', href);
|
|
}
|
|
break;
|
|
}
|
|
e.preventDefault();
|
|
}
|
|
return;
|
|
}
|
|
const button = e.target.closest('button');
|
|
if (button) {
|
|
switch(button.name) {
|
|
case 'reply':
|
|
if (localStorage.getItem('reply_to') === id) {
|
|
writeInput.blur();
|
|
return;
|
|
}
|
|
appendReplyForm(button.closest('.buttons'));
|
|
localStorage.setItem('reply_to', id);
|
|
break;
|
|
case 'star':
|
|
upvote(id, pubkey);
|
|
break;
|
|
case 'settings':
|
|
settingsView.hidden = !settingsView.hidden;
|
|
break;
|
|
case 'new-note':
|
|
if (publishView.hidden) {
|
|
localStorage.removeItem('reply_to'); // should it forget old replyto context?
|
|
publishView.append(writeForm);
|
|
if (writeInput.value.trimRight()) {
|
|
writeInput.style.removeProperty('height');
|
|
}
|
|
requestAnimationFrame(() => {
|
|
updateElemHeight(writeInput);
|
|
writeInput.focus();
|
|
});
|
|
publishView.removeAttribute('hidden');
|
|
} else {
|
|
publishView.hidden = true;
|
|
}
|
|
break;
|
|
case 'back':
|
|
publishView.hidden = true;
|
|
break;
|
|
}
|
|
}
|
|
// const container = e.target.closest('[data-append]');
|
|
// if (container) {
|
|
// container.append(...parseTextContent(container.dataset.append));
|
|
// delete container.dataset.append;
|
|
// return;
|
|
// }
|
|
});
|
|
|
|
// document.body.addEventListener('keyup', (e) => {
|
|
// if (e.key === 'Escape') {
|
|
// hideNewMessage(true);
|
|
// }
|
|
// });
|
|
|
|
// settings
|
|
const settingsForm = document.querySelector('form[name="settings"]');
|
|
const privateKeyInput = settingsForm.querySelector('#privatekey');
|
|
const pubKeyInput = settingsForm.querySelector('#pubkey');
|
|
const statusMessage = settingsForm.querySelector('#keystatus');
|
|
const generateBtn = settingsForm.querySelector('button[name="generate"]');
|
|
const importBtn = settingsForm.querySelector('button[name="import"]');
|
|
const privateTgl = settingsForm.querySelector('button[name="privatekey-toggle"]');
|
|
|
|
generateBtn.addEventListener('click', () => {
|
|
const privatekey = generatePrivateKey();
|
|
const pubkey = getPublicKey(privatekey);
|
|
if (validKeys(privatekey, pubkey)) {
|
|
privateKeyInput.value = privatekey;
|
|
pubKeyInput.value = pubkey;
|
|
statusMessage.textContent = 'private-key created!';
|
|
statusMessage.hidden = false;
|
|
}
|
|
});
|
|
|
|
importBtn.addEventListener('click', () => {
|
|
const privatekey = privateKeyInput.value;
|
|
const pubkeyInput = pubKeyInput.value;
|
|
if (validKeys(privatekey, pubkeyInput)) {
|
|
localStorage.setItem('private_key', privatekey);
|
|
localStorage.setItem('pub_key', pubkeyInput);
|
|
statusMessage.textContent = 'stored private and public key locally!';
|
|
statusMessage.hidden = false;
|
|
pubkey = pubkeyInput;
|
|
}
|
|
});
|
|
|
|
settingsForm.addEventListener('input', () => validKeys(privateKeyInput.value, pubKeyInput.value));
|
|
privateKeyInput.addEventListener('paste', (event) => {
|
|
if (pubKeyInput.value || !event.clipboardData) {
|
|
return;
|
|
}
|
|
if (privateKeyInput.value === '' || ( // either privatekey field is empty
|
|
privateKeyInput.selectionStart === 0 // or the whole text is selected and replaced with the clipboard
|
|
&& privateKeyInput.selectionEnd === privateKeyInput.value.length
|
|
)) { // only generate the pubkey if no data other than the text from clipboard will be used
|
|
try {
|
|
pubKeyInput.value = getPublicKey(event.clipboardData.getData('text'));
|
|
} catch(err) {} // settings form will call validKeys on input and display the error
|
|
}
|
|
});
|
|
|
|
function validKeys(privatekey, pubkey) {
|
|
try {
|
|
if (getPublicKey(privatekey) === pubkey) {
|
|
statusMessage.hidden = true;
|
|
statusMessage.textContent = 'public-key corresponds to private-key';
|
|
importBtn.removeAttribute('disabled');
|
|
return true;
|
|
} else {
|
|
statusMessage.textContent = 'private-key does not correspond to public-key!'
|
|
}
|
|
} catch (e) {
|
|
statusMessage.textContent = `not a valid private-key: ${e.message || e}`;
|
|
}
|
|
statusMessage.hidden = false;
|
|
importBtn.setAttribute('disabled', true);
|
|
return false;
|
|
}
|
|
|
|
privateTgl.addEventListener('click', () => {
|
|
privateKeyInput.type = privateKeyInput.type === 'text' ? 'password' : 'text';
|
|
});
|
|
|
|
privateKeyInput.value = localStorage.getItem('private_key');
|
|
pubKeyInput.value = localStorage.getItem('pub_key');
|
|
|
|
// profile
|
|
const profileForm = document.querySelector('form[name="profile"]');
|
|
const profileSubmit = profileForm.querySelector('button[type="submit"]');
|
|
const profileStatus = document.querySelector('#profilestatus');
|
|
const onProfileError = err => {
|
|
profileStatus.hidden = false;
|
|
profileStatus.textContent = err.message
|
|
};
|
|
profileForm.addEventListener('input', (e) => {
|
|
if (e.target.nodeName === 'TEXTAREA') {
|
|
updateElemHeight(e.target);
|
|
}
|
|
const form = new FormData(profileForm);
|
|
const name = form.get('name');
|
|
const about = form.get('about');
|
|
const picture = form.get('picture');
|
|
profileSubmit.disabled = !(name || about || picture);
|
|
});
|
|
|
|
profileForm.addEventListener('submit', async (e) => {
|
|
e.preventDefault();
|
|
const form = new FormData(profileForm);
|
|
const newProfile = await powEvent({
|
|
kind: 0,
|
|
pubkey,
|
|
content: JSON.stringify(Object.fromEntries(form)),
|
|
tags: [],
|
|
created_at: Math.floor(Date.now() * 0.001),
|
|
}, {difficulty, statusElem: profileStatus, timeout}).catch(console.warn);
|
|
if (!newProfile) {
|
|
profileStatus.textContent = 'publishing profile data canceled';
|
|
profileStatus.hidden = false;
|
|
return;
|
|
}
|
|
const privatekey = localStorage.getItem('private_key');
|
|
const sig = signEvent(newProfile, privatekey);
|
|
// TODO: validateEvent
|
|
if (sig) {
|
|
publish({...newProfile, sig}, (relay, error) => {
|
|
if (error) {
|
|
return console.error(error, relay);
|
|
}
|
|
console.info(`publish request sent to ${relay}`);
|
|
profileStatus.textContent = 'profile metadata successfully published';
|
|
profileStatus.hidden = false;
|
|
profileSubmit.disabled = true;
|
|
});
|
|
}
|
|
});
|
|
|
|
const errorOverlay = document.querySelector('#errorOverlay');
|
|
|
|
function promptError(error, options = {}) {
|
|
const {onAgain, onCancel} = options;
|
|
lockScroll();
|
|
errorOverlay.replaceChildren(
|
|
elem('h1', {className: 'error-title'}, error),
|
|
elem('p', {}, 'time ran out finding a proof with the desired mining difficulty. either try again, lower the mining difficulty or increase the timeout in profile settings.'),
|
|
elem('div', {className: 'buttons'}, [
|
|
onCancel ? elem('button', {data: {action: 'close'}}, 'close') : '',
|
|
onAgain ? elem('button', {data: {action: 'again'}}, 'try again') : '',
|
|
]),
|
|
);
|
|
const handleOverlayClick = (e) => {
|
|
const button = e.target.closest('button');
|
|
if (button) {
|
|
switch(button.dataset.action) {
|
|
case 'close':
|
|
onCancel();
|
|
break;
|
|
case 'again':
|
|
onAgain();
|
|
break;
|
|
}
|
|
errorOverlay.removeEventListener('click', handleOverlayClick);
|
|
errorOverlay.hidden = true;
|
|
unlockScroll();
|
|
}
|
|
};
|
|
errorOverlay.addEventListener('click', handleOverlayClick);
|
|
errorOverlay.hidden = false;
|
|
}
|
|
|
|
/**
|
|
* validate proof-of-work of a nostr event per nip-13.
|
|
* the validation always requires difficulty commitment in the nonce tag.
|
|
*
|
|
* @param {EventObj} evt event to validate
|
|
* TODO: @param {number} targetDifficulty target proof-of-work difficulty
|
|
*/
|
|
function validatePow(evt) {
|
|
const tag = evt.tags.find(tag => tag[0] === 'nonce');
|
|
if (!tag) {
|
|
return false;
|
|
}
|
|
const difficultyCommitment = Number(tag[2]);
|
|
if (!difficultyCommitment || Number.isNaN(difficultyCommitment)) {
|
|
return false;
|
|
}
|
|
return zeroLeadingBitsCount(evt.id) >= difficultyCommitment;
|
|
}
|
|
|
|
/**
|
|
* run proof of work in a worker until at least the specified difficulty.
|
|
* if succcessful, the returned event contains the 'nonce' tag
|
|
* and the updated created_at timestamp.
|
|
*
|
|
* powEvent returns a rejected promise if the funtion runs for longer than timeout.
|
|
* a zero timeout makes mineEvent run without a time limit.
|
|
* a zero mining target just resolves the promise without trying to find a 'nonce'.
|
|
*/
|
|
function powEvent(evt, options) {
|
|
const {difficulty, statusElem, timeout} = options;
|
|
if (difficulty === 0) {
|
|
return Promise.resolve({
|
|
id: getEventHash(evt),
|
|
...evt,
|
|
});
|
|
}
|
|
const cancelBtn = elem('button', {className: 'btn-inline'}, [elem('small', {}, 'cancel')]);
|
|
statusElem.replaceChildren('working…', cancelBtn);
|
|
statusElem.hidden = false;
|
|
return new Promise((resolve, reject) => {
|
|
const worker = new Worker('./worker.js');
|
|
|
|
const onCancel = () => {
|
|
worker.terminate();
|
|
reject('canceled');
|
|
};
|
|
cancelBtn.addEventListener('click', onCancel);
|
|
|
|
worker.onmessage = (msg) => {
|
|
worker.terminate();
|
|
cancelBtn.removeEventListener('click', onCancel);
|
|
if (msg.data.error) {
|
|
promptError(msg.data.error, {
|
|
onCancel: () => reject('canceled'),
|
|
onAgain: async () => {
|
|
const result = await powEvent(evt, {difficulty, statusElem, timeout}).catch(console.warn);
|
|
resolve(result);
|
|
}
|
|
})
|
|
} else {
|
|
resolve(msg.data.event);
|
|
}
|
|
};
|
|
|
|
worker.onerror = (err) => {
|
|
worker.terminate();
|
|
// promptError(msg.data.error, {});
|
|
cancelBtn.removeEventListener('click', onCancel);
|
|
reject(err);
|
|
};
|
|
|
|
worker.postMessage({event: evt, difficulty, timeout});
|
|
});
|
|
}
|