forked from cory/tildefriends
Oh yeah, I was playing with the follow app.
git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4368 ed5197a5-7fde-0310-b194-c3ffbd925b24
This commit is contained in:
parent
1102feaac3
commit
3319df3df0
@ -1,73 +1,163 @@
|
||||
var g_following_cache = {};
|
||||
var g_following_deep_cache = {};
|
||||
var g_about_cache = {};
|
||||
let g_about_cache = {};
|
||||
|
||||
async function following(db, id) {
|
||||
if (g_following_cache[id]) {
|
||||
return g_following_cache[id];
|
||||
}
|
||||
var o = await db.get(id + ":following");
|
||||
const k_version = 5;
|
||||
var f = o ? JSON.parse(o) : o;
|
||||
if (!f || f.version != k_version) {
|
||||
f = {users: [], sequence: 0, version: k_version};
|
||||
}
|
||||
f.users = new Set(f.users);
|
||||
await ssb.sqlAsync(
|
||||
"SELECT "+
|
||||
" sequence, "+
|
||||
" json_extract(content, '$.contact') AS contact, "+
|
||||
" json_extract(content, '$.following') AS following "+
|
||||
"FROM messages "+
|
||||
"WHERE "+
|
||||
" author = ?1 AND "+
|
||||
" sequence > ?2 AND "+
|
||||
" json_extract(content, '$.type') = 'contact' "+
|
||||
"UNION SELECT MAX(sequence) AS sequence, NULL, NULL FROM messages WHERE author = ?1 "+
|
||||
"ORDER BY sequence",
|
||||
[id, f.sequence],
|
||||
function(row) {
|
||||
if (row.following) {
|
||||
f.users.add(row.contact);
|
||||
} else {
|
||||
f.users.delete(row.contact);
|
||||
}
|
||||
f.sequence = row.sequence;
|
||||
});
|
||||
var as_set = f.users;
|
||||
f.users = Array.from(f.users).sort();
|
||||
var j = JSON.stringify(f);
|
||||
if (o != j) {
|
||||
await db.set(id + ":following", j);
|
||||
}
|
||||
f.users = as_set;
|
||||
g_following_cache[id] = f.users;
|
||||
return f.users;
|
||||
async function query(sql, args) {
|
||||
let result = [];
|
||||
await ssb.sqlAsync(sql, args, function(row) {
|
||||
result.push(row);
|
||||
});
|
||||
return result;
|
||||
}
|
||||
|
||||
async function followingDeep(db, seed_ids, depth) {
|
||||
if (depth <= 0) {
|
||||
return seed_ids;
|
||||
async function contacts_internal(id, last_row_id, following, max_row_id) {
|
||||
let result = Object.assign({}, following[id] || {});
|
||||
result.following = result.following || {};
|
||||
result.blocking = result.blocking || {};
|
||||
let contacts = await query(
|
||||
`
|
||||
SELECT content FROM messages
|
||||
WHERE author = ? AND
|
||||
rowid > ? AND
|
||||
rowid <= ? AND
|
||||
json_extract(content, '$.type') = 'contact'
|
||||
ORDER BY sequence
|
||||
`,
|
||||
[id, last_row_id, max_row_id]);
|
||||
for (let row of contacts) {
|
||||
let contact = JSON.parse(row.content);
|
||||
if (contact.following === true) {
|
||||
result.following[contact.contact] = true;
|
||||
} else if (contact.following === false) {
|
||||
delete result.following[contact.contact];
|
||||
} else if (contact.blocking === true) {
|
||||
result.blocking[contact.contact] = true;
|
||||
} else if (contact.blocking === false) {
|
||||
delete result.blocking[contact.contact];
|
||||
}
|
||||
}
|
||||
var key = JSON.stringify([seed_ids, depth]);
|
||||
if (g_following_deep_cache[key]) {
|
||||
return g_following_deep_cache[key];
|
||||
following[id] = result;
|
||||
return result;
|
||||
}
|
||||
|
||||
async function contact(id, last_row_id, following, max_row_id) {
|
||||
return await contacts_internal(id, last_row_id, following, max_row_id);
|
||||
}
|
||||
|
||||
async function following_deep_internal(ids, depth, blocking, last_row_id, following, max_row_id) {
|
||||
let contacts = await Promise.all([...new Set(ids)].map(x => contact(x, last_row_id, following, max_row_id)));
|
||||
let result = {};
|
||||
for (let i = 0; i < ids.length; i++) {
|
||||
let id = ids[i];
|
||||
let contact = contacts[i];
|
||||
let all_blocking = Object.assign({}, contact.blocking, blocking);
|
||||
let found = Object.keys(contact.following).filter(y => !all_blocking[y]);
|
||||
let deeper = depth > 1 ? await following_deep_internal(found, depth - 1, all_blocking, last_row_id, following, max_row_id) : [];
|
||||
result[id] = [id, ...found, ...deeper];
|
||||
}
|
||||
var f = await Promise.all(seed_ids.map(x => following(db, x).then(x => [...x])));
|
||||
var ids = [].concat(...f);
|
||||
var x = await followingDeep(db, [...new Set(ids)].sort(), depth - 1);
|
||||
x = [...new Set([].concat(...x, ...seed_ids))].sort();
|
||||
g_following_deep_cache[key] = x;
|
||||
return x;
|
||||
return [...new Set(Object.values(result).flat())];
|
||||
}
|
||||
|
||||
async function following_deep(ids, depth, blocking) {
|
||||
let db = await database('cache');
|
||||
const k_cache_version = 5;
|
||||
let cache = await db.get('following');
|
||||
cache = cache ? JSON.parse(cache) : {};
|
||||
if (cache.version !== k_cache_version) {
|
||||
cache = {
|
||||
version: k_cache_version,
|
||||
following: {},
|
||||
last_row_id: 0,
|
||||
};
|
||||
}
|
||||
let max_row_id = (await query(`
|
||||
SELECT MAX(rowid) AS max_row_id FROM messages
|
||||
`, []))[0].max_row_id;
|
||||
let result = await following_deep_internal(ids, depth, blocking, cache.last_row_id, cache.following, max_row_id);
|
||||
cache.last_row_id = max_row_id;
|
||||
let store = JSON.stringify(cache);
|
||||
await db.set('following', store);
|
||||
return result;
|
||||
}
|
||||
|
||||
async function fetch_about(db, ids, users) {
|
||||
const k_cache_version = 1;
|
||||
let cache = await db.get('about');
|
||||
cache = cache ? JSON.parse(cache) : {};
|
||||
if (cache.version !== k_cache_version) {
|
||||
cache = {
|
||||
version: k_cache_version,
|
||||
about: {},
|
||||
last_row_id: 0,
|
||||
};
|
||||
}
|
||||
let max_row_id = 0;
|
||||
await ssb.sqlAsync(`
|
||||
SELECT MAX(rowid) AS max_row_id FROM messages
|
||||
`,
|
||||
[],
|
||||
function(row) {
|
||||
max_row_id = row.max_row_id;
|
||||
});
|
||||
for (let id of Object.keys(cache.about)) {
|
||||
if (ids.indexOf(id) == -1) {
|
||||
delete cache.about[id];
|
||||
}
|
||||
}
|
||||
|
||||
let abouts = [];
|
||||
await ssb.sqlAsync(
|
||||
`
|
||||
SELECT
|
||||
messages.*
|
||||
FROM
|
||||
messages,
|
||||
json_each(?1) AS following
|
||||
WHERE
|
||||
messages.author = following.value AND
|
||||
messages.rowid > ?3 AND
|
||||
messages.rowid <= ?4 AND
|
||||
json_extract(messages.content, '$.type') = 'about'
|
||||
UNION
|
||||
SELECT
|
||||
messages.*
|
||||
FROM
|
||||
messages,
|
||||
json_each(?2) AS following
|
||||
WHERE
|
||||
messages.author = following.value AND
|
||||
messages.rowid <= ?4 AND
|
||||
json_extract(messages.content, '$.type') = 'about'
|
||||
ORDER BY messages.author, messages.sequence
|
||||
`,
|
||||
[
|
||||
JSON.stringify(ids.filter(id => cache.about[id])),
|
||||
JSON.stringify(ids.filter(id => !cache.about[id])),
|
||||
cache.last_row_id,
|
||||
max_row_id,
|
||||
]);
|
||||
for (let about of abouts) {
|
||||
let content = JSON.parse(about.content);
|
||||
if (content.about === about.author) {
|
||||
delete content.type;
|
||||
delete content.about;
|
||||
cache.about[about.author] = Object.assign(cache.about[about.author] || {}, content);
|
||||
}
|
||||
}
|
||||
cache.last_row_id = max_row_id;
|
||||
await db.set('about', JSON.stringify(cache));
|
||||
users = users || {};
|
||||
for (let id of Object.keys(cache.about)) {
|
||||
users[id] = Object.assign(users[id] || {}, cache.about[id]);
|
||||
}
|
||||
return Object.assign({}, users);
|
||||
}
|
||||
|
||||
async function getAbout(db, id) {
|
||||
if (g_about_cache[id]) {
|
||||
return g_about_cache[id];
|
||||
}
|
||||
var o = await db.get(id + ":about");
|
||||
let o = await db.get(id + ":about");
|
||||
const k_version = 4;
|
||||
var f = o ? JSON.parse(o) : o;
|
||||
let f = o ? JSON.parse(o) : o;
|
||||
if (!f || f.version != k_version) {
|
||||
f = {about: {}, sequence: 0, version: k_version};
|
||||
}
|
||||
@ -87,7 +177,7 @@ async function getAbout(db, id) {
|
||||
function(row) {
|
||||
f.sequence = row.sequence;
|
||||
if (row.content) {
|
||||
var about = {};
|
||||
let about = {};
|
||||
try {
|
||||
about = JSON.parse(row.content);
|
||||
} catch {
|
||||
@ -97,7 +187,7 @@ async function getAbout(db, id) {
|
||||
f.about = Object.assign(f.about, about);
|
||||
}
|
||||
});
|
||||
var j = JSON.stringify(f);
|
||||
let j = JSON.stringify(f);
|
||||
if (o != j) {
|
||||
await db.set(id + ":about", j);
|
||||
}
|
||||
@ -108,7 +198,7 @@ async function getAbout(db, id) {
|
||||
async function getSize(db, id) {
|
||||
let size = 0;
|
||||
await ssb.sqlAsync(
|
||||
"SELECT (SUM(LENGTH(content)) + SUM(LENGTH(author)) + SUM(LENGTH(id))) AS size FROM messages WHERE author = ?1",
|
||||
"SELECT (LENGTH(author) * COUNT(*) + SUM(LENGTH(content)) + SUM(LENGTH(id))) AS size FROM messages WHERE author = ?1",
|
||||
[id],
|
||||
function (row) {
|
||||
size += row.size;
|
||||
@ -116,6 +206,25 @@ async function getSize(db, id) {
|
||||
return size;
|
||||
}
|
||||
|
||||
|
||||
async function getSizes(ids) {
|
||||
let sizes = {};
|
||||
await ssb.sqlAsync(
|
||||
`
|
||||
SELECT
|
||||
author,
|
||||
(SUM(LENGTH(content)) + SUM(LENGTH(author)) + SUM(LENGTH(messages.id))) AS size
|
||||
FROM messages
|
||||
JOIN json_each(?) AS ids ON author = ids.value
|
||||
GROUP BY author
|
||||
`,
|
||||
[JSON.stringify(ids)],
|
||||
function (row) {
|
||||
sizes[row.author] = row.size;
|
||||
});
|
||||
return sizes;
|
||||
}
|
||||
|
||||
function niceSize(bytes) {
|
||||
let value = bytes;
|
||||
let unit = 'B';
|
||||
@ -131,27 +240,28 @@ function niceSize(bytes) {
|
||||
return Math.round(value * 10) / 10 + ' ' + unit;
|
||||
}
|
||||
|
||||
async function buildTree(db, root, indent, depth) {
|
||||
var f = await following(db, root);
|
||||
var result = indent + '[' + f.size + '] ' + '<a target="_top" href="../index/#' + root + '">' + ((await getAbout(db, root)).name || root) + '</a> ' + niceSize(await getSize(db, root)) + '\n';
|
||||
if (depth > 0) {
|
||||
for (let next of f) {
|
||||
result += await buildTree(db, next, indent + ' ', depth - 1);
|
||||
}
|
||||
}
|
||||
return result;
|
||||
function escape(value) {
|
||||
return value.replaceAll('&', '&').replaceAll('<', '<').replaceAll('>', '>');
|
||||
}
|
||||
|
||||
async function main() {
|
||||
await app.setDocument('<pre style="color: #fff">building...</pre>');
|
||||
var db = await database('ssb');
|
||||
var whoami = await ssb.getIdentities();
|
||||
var tree = '';
|
||||
for (let id of whoami) {
|
||||
await app.setDocument(`<pre style="color: #fff">building... ${id}</pre>`);
|
||||
tree += await buildTree(db, id, '', 2);
|
||||
let db = await database('ssb');
|
||||
let whoami = await ssb.getIdentities();
|
||||
let tree = '';
|
||||
await app.setDocument(`<pre style="color: #fff">Enumerating followed users...</pre>`);
|
||||
let following = await following_deep(whoami, 2, {});
|
||||
await app.setDocument(`<pre style="color: #fff">Getting names and sizes...</pre>`);
|
||||
let [about, sizes] = await Promise.all([
|
||||
fetch_about(db, following, {}),
|
||||
getSizes(following),
|
||||
]);
|
||||
await app.setDocument(`<pre style="color: #fff">Finishing...</pre>`);
|
||||
following.sort((a, b) => ((sizes[b] ?? 0) - (sizes[a] ?? 0)));
|
||||
for (let id of following) {
|
||||
tree += `<li><a href="/~core/ssb/#${id}">${escape(about[id]?.name ?? id)}</a> ${niceSize(sizes[id] ?? 0)}</li>\n`;
|
||||
}
|
||||
await app.setDocument('<pre style="color: #fff">FOLLOWING:\n' + tree + '</pre>');
|
||||
await app.setDocument('<!DOCTYPE html>\n<html>\n<body style="color: #fff"><h1>Following</h1>\n<ul>' + tree + '</ul>\n</body>\n</html>');
|
||||
}
|
||||
|
||||
main();
|
||||
Loading…
Reference in New Issue
Block a user