mirror of
https://github.com/laurent22/joplin.git
synced 2024-12-21 09:38:01 +02:00
346 lines
12 KiB
TypeScript
346 lines
12 KiB
TypeScript
import ItemChange from '../models/ItemChange';
|
|
import Note from '../models/Note';
|
|
import Folder from '../models/Folder';
|
|
import Setting from '../models/Setting';
|
|
import Revision from '../models/Revision';
|
|
import BaseModel from '../BaseModel';
|
|
import ItemChangeUtils from './ItemChangeUtils';
|
|
import shim from '../shim';
|
|
import BaseService from './BaseService';
|
|
import { _ } from '../locale';
|
|
import { ItemChangeEntity, NoteEntity, RevisionEntity } from './database/types';
|
|
import Logger from '@joplin/utils/Logger';
|
|
import { MarkupLanguage } from '../../renderer';
|
|
const { substrWithEllipsis } = require('../string-utils');
|
|
const { sprintf } = require('sprintf-js');
|
|
const { wrapError } = require('../errorUtils');
|
|
|
|
const logger = Logger.create('RevisionService');
|
|
|
|
export default class RevisionService extends BaseService {
|
|
|
|
public static instance_: RevisionService;
|
|
|
|
// An "old note" is one that has been created before the revision service existed. These
|
|
// notes never benefited from revisions so the first time they are modified, a copy of
|
|
// the original note is saved. The goal is to have at least one revision in case the note
|
|
// is deleted or modified as a result of a bug or user mistake.
|
|
private isOldNotesCache_: any = {};
|
|
private maintenanceCalls_: any[] = [];
|
|
private maintenanceTimer1_: any = null;
|
|
private maintenanceTimer2_: any = null;
|
|
private isCollecting_ = false;
|
|
public isRunningInBackground_ = false;
|
|
|
|
public static instance() {
|
|
if (this.instance_) return this.instance_;
|
|
this.instance_ = new RevisionService();
|
|
return this.instance_;
|
|
}
|
|
|
|
public oldNoteCutOffDate_() {
|
|
return Date.now() - Setting.value('revisionService.oldNoteInterval');
|
|
}
|
|
|
|
public async isOldNote(noteId: string) {
|
|
if (noteId in this.isOldNotesCache_) return this.isOldNotesCache_[noteId];
|
|
|
|
const isOld = await Note.noteIsOlderThan(noteId, this.oldNoteCutOffDate_());
|
|
this.isOldNotesCache_[noteId] = isOld;
|
|
return isOld;
|
|
}
|
|
|
|
private noteMetadata_(note: NoteEntity) {
|
|
const excludedFields = ['type_', 'title', 'body', 'created_time', 'updated_time', 'encryption_applied', 'encryption_cipher_text', 'is_conflict'];
|
|
const md: any = {};
|
|
for (const k in note) {
|
|
if (excludedFields.indexOf(k) >= 0) continue;
|
|
md[k] = (note as any)[k];
|
|
}
|
|
|
|
if (note.user_updated_time === note.updated_time) delete md.user_updated_time;
|
|
if (note.user_created_time === note.created_time) delete md.user_created_time;
|
|
|
|
return md;
|
|
}
|
|
|
|
public async createNoteRevision_(note: NoteEntity, parentRevId: string = null): Promise<RevisionEntity> {
|
|
try {
|
|
const parentRev = parentRevId ? await Revision.load(parentRevId) : await Revision.latestRevision(BaseModel.TYPE_NOTE, note.id);
|
|
|
|
const output: RevisionEntity = {
|
|
parent_id: '',
|
|
item_type: BaseModel.TYPE_NOTE,
|
|
item_id: note.id,
|
|
item_updated_time: note.updated_time,
|
|
};
|
|
|
|
const noteMd = this.noteMetadata_(note);
|
|
const noteTitle = note.title ? note.title : '';
|
|
const noteBody = note.body ? note.body : '';
|
|
|
|
if (!parentRev) {
|
|
output.title_diff = Revision.createTextPatch('', noteTitle);
|
|
output.body_diff = Revision.createTextPatch('', noteBody);
|
|
output.metadata_diff = Revision.createObjectPatch({}, noteMd);
|
|
} else {
|
|
if (Date.now() - parentRev.updated_time < Setting.value('revisionService.intervalBetweenRevisions')) return null;
|
|
|
|
const merged = await Revision.mergeDiffs(parentRev);
|
|
output.parent_id = parentRev.id;
|
|
output.title_diff = Revision.createTextPatch(merged.title, noteTitle);
|
|
output.body_diff = Revision.createTextPatch(merged.body, noteBody);
|
|
output.metadata_diff = Revision.createObjectPatch(merged.metadata, noteMd);
|
|
}
|
|
|
|
if (Revision.isEmptyRevision(output)) return null;
|
|
|
|
return Revision.save(output);
|
|
} catch (error) {
|
|
const newError = wrapError(`Could not create revision for note: ${note.id}`, error);
|
|
throw newError;
|
|
}
|
|
}
|
|
|
|
public async collectRevisions() {
|
|
if (this.isCollecting_) return;
|
|
|
|
this.isCollecting_ = true;
|
|
|
|
await ItemChange.waitForAllSaved();
|
|
|
|
const doneNoteIds = [];
|
|
|
|
try {
|
|
while (true) {
|
|
// See synchronizer test units to see why changes coming
|
|
// from sync are skipped.
|
|
const changes: ItemChangeEntity[] = await ItemChange.modelSelectAll(
|
|
`
|
|
SELECT id, item_id, type, before_change_item
|
|
FROM item_changes
|
|
WHERE item_type = ?
|
|
AND source != ?
|
|
AND source != ?
|
|
AND id > ?
|
|
ORDER BY id ASC
|
|
LIMIT 10
|
|
`,
|
|
[BaseModel.TYPE_NOTE, ItemChange.SOURCE_SYNC, ItemChange.SOURCE_DECRYPTION, Setting.value('revisionService.lastProcessedChangeId')],
|
|
);
|
|
|
|
if (!changes.length) break;
|
|
|
|
const noteIds = changes.map((a) => a.item_id);
|
|
const notes = await Note.modelSelectAll(`SELECT * FROM notes WHERE is_conflict = 0 AND encryption_applied = 0 AND id IN ("${noteIds.join('","')}")`);
|
|
|
|
for (let i = 0; i < changes.length; i++) {
|
|
const change = changes[i];
|
|
const noteId = change.item_id;
|
|
|
|
try {
|
|
if (change.type === ItemChange.TYPE_UPDATE && doneNoteIds.indexOf(noteId) < 0) {
|
|
const note = BaseModel.byId(notes, noteId);
|
|
const oldNote = change.before_change_item ? JSON.parse(change.before_change_item) : null;
|
|
|
|
if (note) {
|
|
if (oldNote && oldNote.updated_time < this.oldNoteCutOffDate_()) {
|
|
// This is where we save the original version of this old note
|
|
const rev = await this.createNoteRevision_(oldNote);
|
|
if (rev) logger.debug(sprintf('collectRevisions: Saved revision %s (old note)', rev.id));
|
|
}
|
|
|
|
const rev = await this.createNoteRevision_(note);
|
|
if (rev) logger.debug(sprintf('collectRevisions: Saved revision %s (Last rev was more than %d ms ago)', rev.id, Setting.value('revisionService.intervalBetweenRevisions')));
|
|
doneNoteIds.push(noteId);
|
|
this.isOldNotesCache_[noteId] = false;
|
|
}
|
|
}
|
|
|
|
if (change.type === ItemChange.TYPE_DELETE && !!change.before_change_item) {
|
|
const note = JSON.parse(change.before_change_item);
|
|
const revExists = await Revision.revisionExists(BaseModel.TYPE_NOTE, note.id, note.updated_time);
|
|
if (!revExists) {
|
|
const rev = await this.createNoteRevision_(note);
|
|
if (rev) logger.debug(sprintf('collectRevisions: Saved revision %s (for deleted note)', rev.id));
|
|
}
|
|
doneNoteIds.push(noteId);
|
|
}
|
|
} catch (error) {
|
|
if (error.code === 'revision_encrypted') {
|
|
throw error;
|
|
} else {
|
|
// If any revision creation fails, we continue
|
|
// processing the other changes. It seems a rare bug
|
|
// in diff-match-patch can cause the creation of
|
|
// revisions to fail in some case. It should be rare
|
|
// and it's best to continue processing the other
|
|
// changes. The alternative would be to stop here
|
|
// and fix the bug, but in the meantime revisions
|
|
// will no longer be generated.
|
|
|
|
// The drawback is that once a change has been
|
|
// skipped it will never be processed again because
|
|
// the error will be in the past (before
|
|
// revisionService.lastProcessedChangeId)
|
|
//
|
|
// https://github.com/laurent22/joplin/issues/5531
|
|
logger.error(`collectRevisions: Processing one of the changes for note ${noteId} failed. Other changes will still be processed. Error was: `, error);
|
|
logger.error('collectRevisions: Change was:', change);
|
|
}
|
|
}
|
|
|
|
Setting.setValue('revisionService.lastProcessedChangeId', change.id);
|
|
}
|
|
}
|
|
} catch (error) {
|
|
if (error.code === 'revision_encrypted') {
|
|
// One or more revisions are encrypted - stop processing for now
|
|
// and these revisions will be processed next time the revision
|
|
// collector runs.
|
|
logger.info('collectRevisions: One or more revision was encrypted. Processing was stopped but will resume later when the revision is decrypted.', error);
|
|
} else {
|
|
// This should not happen anymore because we handle the error in
|
|
// the loop above.
|
|
logger.error('collectRevisions:', error);
|
|
}
|
|
}
|
|
|
|
await Setting.saveAll();
|
|
await ItemChangeUtils.deleteProcessedChanges();
|
|
|
|
this.isCollecting_ = false;
|
|
|
|
logger.info(`collectRevisions: Created revisions for ${doneNoteIds.length} notes`);
|
|
}
|
|
|
|
public async deleteOldRevisions(ttl: number) {
|
|
return Revision.deleteOldRevisions(ttl);
|
|
}
|
|
|
|
public async revisionNote(revisions: RevisionEntity[], index: number) {
|
|
if (index < 0 || index >= revisions.length) throw new Error(`Invalid revision index: ${index}`);
|
|
|
|
const rev = revisions[index];
|
|
const merged = await Revision.mergeDiffs(rev, revisions);
|
|
|
|
const output: NoteEntity = {
|
|
title: merged.title,
|
|
body: merged.body,
|
|
...merged.metadata,
|
|
};
|
|
output.updated_time = output.user_updated_time;
|
|
output.created_time = output.user_created_time;
|
|
(output as any).type_ = BaseModel.TYPE_NOTE;
|
|
if (!('markup_language' in output)) output.markup_language = MarkupLanguage.Markdown;
|
|
|
|
return output;
|
|
}
|
|
|
|
public restoreFolderTitle() {
|
|
return _('Restored Notes');
|
|
}
|
|
|
|
public async restoreFolder() {
|
|
let folder = await Folder.loadByTitle(this.restoreFolderTitle());
|
|
if (!folder) {
|
|
folder = await Folder.save({ title: this.restoreFolderTitle() });
|
|
}
|
|
return folder;
|
|
}
|
|
|
|
// reverseRevIndex = 0 means restoring the latest version. reverseRevIndex =
|
|
// 1 means the version before that, etc.
|
|
public async restoreNoteById(noteId: string, reverseRevIndex: number): Promise<NoteEntity> {
|
|
const revisions = await Revision.allByType(BaseModel.TYPE_NOTE, noteId);
|
|
if (!revisions.length) throw new Error(`No revision for note "${noteId}"`);
|
|
|
|
const revIndex = revisions.length - 1 - reverseRevIndex;
|
|
|
|
const note = await this.revisionNote(revisions, revIndex);
|
|
return this.importRevisionNote(note);
|
|
}
|
|
|
|
public restoreSuccessMessage(note: NoteEntity): string {
|
|
return _('The note "%s" has been successfully restored to the notebook "%s".', substrWithEllipsis(note.title, 0, 32), this.restoreFolderTitle());
|
|
}
|
|
|
|
public async importRevisionNote(note: NoteEntity): Promise<NoteEntity> {
|
|
const toImport = { ...note };
|
|
delete toImport.id;
|
|
delete toImport.updated_time;
|
|
delete toImport.created_time;
|
|
delete toImport.encryption_applied;
|
|
delete toImport.encryption_cipher_text;
|
|
|
|
const folder = await this.restoreFolder();
|
|
|
|
toImport.parent_id = folder.id;
|
|
|
|
return Note.save(toImport);
|
|
}
|
|
|
|
public async maintenance() {
|
|
this.maintenanceCalls_.push(true);
|
|
try {
|
|
const startTime = Date.now();
|
|
logger.info('maintenance: Starting...');
|
|
|
|
if (!Setting.value('revisionService.enabled')) {
|
|
logger.info('maintenance: Service is disabled');
|
|
// We do as if we had processed all the latest changes so that they can be cleaned up
|
|
// later on by ItemChangeUtils.deleteProcessedChanges().
|
|
Setting.setValue('revisionService.lastProcessedChangeId', await ItemChange.lastChangeId());
|
|
await this.deleteOldRevisions(Setting.value('revisionService.ttlDays') * 24 * 60 * 60 * 1000);
|
|
} else {
|
|
logger.info('maintenance: Service is enabled');
|
|
await this.collectRevisions();
|
|
await this.deleteOldRevisions(Setting.value('revisionService.ttlDays') * 24 * 60 * 60 * 1000);
|
|
|
|
logger.info(`maintenance: Done in ${Date.now() - startTime}ms`);
|
|
}
|
|
} catch (error) {
|
|
logger.error('maintenance:', error);
|
|
} finally {
|
|
this.maintenanceCalls_.pop();
|
|
}
|
|
}
|
|
|
|
public runInBackground(collectRevisionInterval: number = null) {
|
|
if (this.isRunningInBackground_) return;
|
|
this.isRunningInBackground_ = true;
|
|
|
|
if (collectRevisionInterval === null) collectRevisionInterval = 1000 * 60 * 10;
|
|
|
|
logger.info(`runInBackground: Starting background service with revision collection interval ${collectRevisionInterval}`);
|
|
|
|
this.maintenanceTimer1_ = shim.setTimeout(() => {
|
|
void this.maintenance();
|
|
}, 1000 * 4);
|
|
|
|
this.maintenanceTimer2_ = shim.setInterval(() => {
|
|
void this.maintenance();
|
|
}, collectRevisionInterval);
|
|
}
|
|
|
|
public async cancelTimers() {
|
|
if (this.maintenanceTimer1_) {
|
|
shim.clearTimeout(this.maintenanceTimer1_);
|
|
this.maintenanceTimer1_ = null;
|
|
}
|
|
if (this.maintenanceTimer2_) {
|
|
shim.clearInterval(this.maintenanceTimer2_);
|
|
this.maintenanceTimer2_ = null;
|
|
}
|
|
|
|
return new Promise((resolve) => {
|
|
const iid = shim.setInterval(() => {
|
|
if (!this.maintenanceCalls_.length) {
|
|
shim.clearInterval(iid);
|
|
resolve(null);
|
|
}
|
|
}, 100);
|
|
});
|
|
}
|
|
}
|