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92 líneas
2.7 KiB
92 líneas
2.7 KiB
/*
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* This is a debug tool. It checks all revisions for data corruption
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*/
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if (process.argv.length != 3) {
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console.error('Use: node bin/checkPad.js $PADID');
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process.exit(1);
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}
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// get the padID
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const padId = process.argv[2];
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// load and initialize NPM;
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const npm = require('../src/node_modules/npm');
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npm.load({}, async () => {
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try {
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// initialize database
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const settings = require('../src/node/utils/Settings');
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const db = require('../src/node/db/DB');
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await db.init();
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// load modules
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const Changeset = require('ep_etherpad-lite/static/js/Changeset');
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const padManager = require('../src/node/db/PadManager');
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const exists = await padManager.doesPadExists(padId);
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if (!exists) {
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console.error('Pad does not exist');
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process.exit(1);
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}
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// get the pad
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const pad = await padManager.getPad(padId);
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// create an array with key revisions
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// key revisions always save the full pad atext
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const head = pad.getHeadRevisionNumber();
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const keyRevisions = [];
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for (let rev = 0; rev < head; rev += 100) {
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keyRevisions.push(rev);
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}
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// run through all key revisions
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for (const keyRev of keyRevisions) {
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// create an array of revisions we need till the next keyRevision or the End
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const revisionsNeeded = [];
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for (let rev = keyRev; rev <= keyRev + 100 && rev <= head; rev++) {
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revisionsNeeded.push(rev);
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}
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// this array will hold all revision changesets
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const revisions = [];
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// run through all needed revisions and get them from the database
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for (const revNum of revisionsNeeded) {
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const revision = await db.get(`pad:${padId}:revs:${revNum}`);
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revisions[revNum] = revision;
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}
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// check if the pad has a pool
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if (pad.pool === undefined) {
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console.error('Attribute pool is missing');
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process.exit(1);
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}
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// check if there is an atext in the keyRevisions
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if (revisions[keyRev] === undefined || revisions[keyRev].meta === undefined || revisions[keyRev].meta.atext === undefined) {
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console.error(`No atext in key revision ${keyRev}`);
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continue;
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}
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const apool = pad.pool;
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let atext = revisions[keyRev].meta.atext;
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for (let rev = keyRev + 1; rev <= keyRev + 100 && rev <= head; rev++) {
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try {
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// console.log("check revision " + rev);
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const cs = revisions[rev].changeset;
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atext = Changeset.applyToAText(cs, atext, apool);
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} catch (e) {
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console.error(`Bad changeset at revision ${rev} - ${e.message}`);
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continue;
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}
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}
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console.log('finished');
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process.exit(0);
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}
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} catch (e) {
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console.trace(e);
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process.exit(1);
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}
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});
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