pad.pub0.org/bin/checkAllPads.js

96 lines
3.2 KiB
JavaScript

'use strict';
/*
* This is a debug tool. It checks all revisions for data corruption
*/
// As of v14, Node.js does not exit when there is an unhandled Promise rejection. Convert an
// unhandled rejection into an uncaught exception, which does cause Node.js to exit.
process.on('unhandledRejection', (err) => { throw err; });
if (process.argv.length !== 2) throw new Error('Use: node bin/checkAllPads.js');
// load and initialize NPM
const npm = require('ep_etherpad-lite/node_modules/npm');
npm.load({}, async () => {
try {
// initialize the database
require('ep_etherpad-lite/node/utils/Settings');
const db = require('ep_etherpad-lite/node/db/DB');
await db.init();
// load modules
const Changeset = require('ep_etherpad-lite/static/js/Changeset');
const padManager = require('ep_etherpad-lite/node/db/PadManager');
let revTestedCount = 0;
// get all pads
const res = await padManager.listAllPads();
for (const padId of res.padIDs) {
const pad = await padManager.getPad(padId);
// check if the pad has a pool
if (pad.pool === undefined) {
console.error(`[${pad.id}] Missing attribute pool`);
continue;
}
// create an array with key kevisions
// key revisions always save the full pad atext
const head = pad.getHeadRevisionNumber();
const keyRevisions = [];
for (let rev = 0; rev < head; rev += 100) {
keyRevisions.push(rev);
}
// run through all key revisions
for (const keyRev of keyRevisions) {
// create an array of revisions we need till the next keyRevision or the End
const revisionsNeeded = [];
for (let rev = keyRev; rev <= keyRev + 100 && rev <= head; rev++) {
revisionsNeeded.push(rev);
}
// this array will hold all revision changesets
const revisions = [];
// run through all needed revisions and get them from the database
for (const revNum of revisionsNeeded) {
const revision = await db.get(`pad:${pad.id}:revs:${revNum}`);
revisions[revNum] = revision;
}
// check if the revision exists
if (revisions[keyRev] == null) {
console.error(`[${pad.id}] Missing revision ${keyRev}`);
continue;
}
// check if there is a atext in the keyRevisions
if (revisions[keyRev].meta === undefined || revisions[keyRev].meta.atext === undefined) {
console.error(`[${pad.id}] Missing atext in revision ${keyRev}`);
continue;
}
const apool = pad.pool;
let atext = revisions[keyRev].meta.atext;
for (let rev = keyRev + 1; rev <= keyRev + 100 && rev <= head; rev++) {
try {
const cs = revisions[rev].changeset;
atext = Changeset.applyToAText(cs, atext, apool);
revTestedCount++;
} catch (e) {
console.error(`[${pad.id}] Bad changeset at revision ${rev} - ${e.message}`);
}
}
}
}
if (revTestedCount === 0) {
throw new Error('No revisions tested');
}
console.log(`Finished: Tested ${revTestedCount} revisions`);
} catch (err) {
console.trace(err);
throw err;
}
});