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This commit is contained in:
Nathan Byrd 2023-02-10 16:51:50 -06:00
parent 1fcadef8d0
commit 87034967ae
5 changed files with 3672 additions and 2409 deletions
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146
core/activitypub/actor.js
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@ -14,17 +14,17 @@ const ActivityPubObject = require('./object');
const { ActivityStreamMediaType } = require('./const');
const apDb = require('../database').dbs.activitypub;
const Config = require('../config').get;
const parseFullName = require('parse-full-name').parseFullName;
// deps
const _ = require('lodash');
const mimeTypes = require('mime-types');
const { getJson } = require('../http_util.js');
const { getISOTimestampString } = require('../database.js');
const moment = require('moment');
const paths = require('path');
const ActorCacheExpiration = moment.duration(15, 'days');
const ActorCacheMaxAgeDays = 125; // hasn't been used in >= 125 days, nuke it.
const MaxSearchResults = 10; // Maximum number of results to show for a search
// default context for Actor's
const DefaultContext = ActivityPubObject.makeContext(['https://w3id.org/security/v1'], {
@ -167,14 +167,10 @@ module.exports = class Actor extends ActivityPubObject {
}
};
Actor._fromCache(id, (err, actor, subject, needsRefresh) => {
Actor._fromCache(id, (err, actor, subject) => {
if (!err) {
// cache hit
callback(null, actor, subject);
if (!needsRefresh) {
return;
}
}
// Cache miss or needs refreshed; Try to do so now
@ -194,21 +190,76 @@ module.exports = class Actor extends ActivityPubObject {
// cache our entry
if (actor) {
apDb.run(
'DELETE FROM actor_cache_search WHERE actor_id=?',
[id],
err => {
if (err) {
Log.warn(
{ err: err },
'Error deleting previous actor_cache_search'
);
}
}
);
apDb.run(
`REPLACE INTO actor_cache (actor_id, actor_json, subject, timestamp)
VALUES (?, ?, ?, ?);`,
[id, JSON.stringify(actor), subject, getISOTimestampString()],
err => {
if (err) {
// :TODO: log me
Log.warn(
{ err: err },
'Error replacing into the actor cache'
);
}
}
);
const searchNames = this._parseSearchNames(actor);
if (searchNames.length > 0) {
const searchStatement = apDb.prepare(
'INSERT INTO actor_cache_search (actor_id, search_name) VALUES (?, ?)'
);
searchNames.forEach(name => {
searchStatement.run([id, name], err => {
if (err) {
Log.warn(
{ err: err },
'Error inserting into actor cache search'
);
}
});
});
}
}
});
});
}
static _parseSearchNames(actor) {
const searchNames = [];
if (!_.isEmpty(actor.preferredUsername)) {
searchNames.push(actor.preferredUsername);
}
const name = parseFullName(actor.name);
if (!_.isEmpty(name.first)) {
searchNames.push(name.first);
}
if (!_.isEmpty(name.last)) {
searchNames.push(name.last);
}
if (!_.isEmpty(name.nick)) {
searchNames.push(name.nick);
}
return searchNames;
}
static actorCacheMaintenanceTask(args, cb) {
const enabled = _.get(
Config(),
@ -220,10 +271,10 @@ module.exports = class Actor extends ActivityPubObject {
apDb.run(
`DELETE FROM actor_cache
WHERE DATETIME(timestamp) > DATETIME("now", "+${ActorCacheMaxAgeDays}");`,
WHERE DATETIME(timestamp) < DATETIME("now", "-${ActorCacheMaxAgeDays} day");`,
err => {
if (err) {
// :TODO: log me
Log.warn({ err: err }, 'Error clearing old cache entries.');
}
return cb(null); // always non-fatal
@ -231,6 +282,40 @@ module.exports = class Actor extends ActivityPubObject {
);
}
static fromSearch(searchString, cb) {
// first try to find an exact match
this.fromId(searchString, (err, remoteActor) => {
if (!err) {
return cb(null, [remoteActor]);
} else {
Log.info({ err: err }, 'Not able to find based on id');
}
});
let returnRows = [];
// If not found, try searching database for known actors
apDb.each(
`SELECT actor_cache.actor_json
FROM actor_cache INNER JOIN actor_cache_search ON actor_cache.actor_id = actor_cache_search.actor_id
WHERE actor_cache_search.search_name like '%'||?||'%'
LIMIT ${MaxSearchResults}`,
(err, row) => {
if (err) {
Log.warn({ err: err }, 'error retrieving search results');
return cb(err, []);
}
this._fromJsonToActor(row.actor_json, (err, actor) => {
if (err) {
Log.warn({ err: err }, 'error converting search results');
return cb(err, []);
}
returnRows.push(actor);
});
}
);
return cb(null, returnRows);
}
static _fromRemoteQuery(id, cb) {
const headers = {
Accept: ActivityStreamMediaType,
@ -253,9 +338,10 @@ module.exports = class Actor extends ActivityPubObject {
static _fromCache(actorIdOrSubject, cb) {
apDb.get(
`SELECT actor_json, subject, timestamp
`SELECT actor_json, subject
FROM actor_cache
WHERE actor_id = ? OR subject = ?
AND DATETIME(timestamp) > DATETIME("now", "-${ActorCacheMaxAgeDays} day")
LIMIT 1;`,
[actorIdOrSubject, actorIdOrSubject],
(err, row) => {
@ -267,27 +353,31 @@ module.exports = class Actor extends ActivityPubObject {
return cb(Errors.DoesNotExist());
}
const timestamp = moment(row.timestamp);
const needsRefresh = moment().isAfter(
timestamp.add(ActorCacheExpiration)
);
const obj = ActivityPubObject.fromJsonString(row.actor_json);
if (!obj || !obj.isValid()) {
return cb(Errors.Invalid('Failed to create ActivityPub object'));
}
const actor = new Actor(obj);
if (!actor.isValid()) {
return cb(Errors.Invalid('Failed to create Actor object'));
}
const subject = row.subject || actor.id;
return cb(null, actor, subject, needsRefresh);
this._fromJsonToActor(row.actor_json, (err, actor) => {
if (err) {
return cb(err);
}
const subject = row.subject || actor.id;
return cb(null, actor, subject);
});
}
);
}
static _fromJsonToActor(actorJson, cb) {
const obj = ActivityPubObject.fromJsonString(actorJson);
if (!obj || !obj.isValid()) {
return cb(Errors.Invalid('Failed to create ActivityPub object'));
}
const actor = new Actor(obj);
if (!actor.isValid()) {
return cb(Errors.Invalid('Failed to create Actor object'));
}
return cb(null, actor);
}
static _fromWebFinger(actorQuery, cb) {
queryWebFinger(actorQuery, (err, res) => {
if (err) {

22
core/database.js
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@ -480,7 +480,8 @@ dbs.message.run(
actor_json VARCHAR NOT NULL, -- Actor document
subject VARCHAR, -- Subject obtained from WebFinger, e.g. @Username@some.domain
timestamp DATETIME NOT NULL, -- Timestamp in which this Actor was cached
preferredUsername VARCHAR, -- Denormalized username for search
name VARCHAR, -- Denormalized actor name for search
UNIQUE(actor_id)
);`
);
@ -490,6 +491,25 @@ dbs.message.run(
ON actor_cache (actor_id);`
);
// Denormalized actor information for search
dbs.activitypub.run(
`CREATE TABLE IF NOT EXISTS actor_cache_search (
actor_id VARCHAR NOT NULL, -- Fully qualified Actor ID/URL
search_name VARCHAR, -- Name to search
CONSTRAINT actor_cache_search_actor_cache_fk FOREIGN KEY(actor_id) REFERENCES actor_cache(actor_id) ON DELETE CASCADE
);`
);
dbs.activitypub.run(
`CREATE INDEX IF NOT EXISTS actor_cache_search_actor_id_index0
ON actor_cache_search (actor_id);`
);
dbs.activitypub.run(
`CREATE INDEX IF NOT EXISTS actor_cache_search_name_index0
ON actor_cache_search (search_name);`
);
// ActivityPub Collections of various types such as followers, following, likes, ...
dbs.activitypub.run(
`CREATE TABLE IF NOT EXISTS collection (

1166
package-lock.json generated
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1
package.json
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@ -57,6 +57,7 @@
"node-pty": "0.10.1",
"nodemailer": "6.7.7",
"otplib": "11.0.1",
"parse-full-name": "^1.2.6",
"qrcode-generator": "^1.4.4",
"rlogin": "^1.0.0",
"sane": "5.0.1",

4746
yarn.lock
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