mirror of
https://github.com/laurent22/joplin.git
synced 2024-12-15 09:04:04 +02:00
431 lines
13 KiB
JavaScript
431 lines
13 KiB
JavaScript
import { BaseItem } from 'lib/models/base-item.js';
|
|
import { Folder } from 'lib/models/folder.js';
|
|
import { Note } from 'lib/models/note.js';
|
|
import { Resource } from 'lib/models/resource.js';
|
|
import { BaseModel } from 'lib/base-model.js';
|
|
import { sprintf } from 'sprintf-js';
|
|
import { time } from 'lib/time-utils.js';
|
|
import { Logger } from 'lib/logger.js'
|
|
import moment from 'moment';
|
|
|
|
class Synchronizer {
|
|
|
|
constructor(db, api, appType) {
|
|
this.state_ = 'idle';
|
|
this.db_ = db;
|
|
this.api_ = api;
|
|
this.syncDirName_ = '.sync';
|
|
this.resourceDirName_ = '.resource';
|
|
this.logger_ = new Logger();
|
|
this.appType_ = appType;
|
|
this.cancelling_ = false;
|
|
}
|
|
|
|
state() {
|
|
return this.state_;
|
|
}
|
|
|
|
db() {
|
|
return this.db_;
|
|
}
|
|
|
|
api() {
|
|
return this.api_;
|
|
}
|
|
|
|
setLogger(l) {
|
|
this.logger_ = l;
|
|
}
|
|
|
|
logger() {
|
|
return this.logger_;
|
|
}
|
|
|
|
logSyncOperation(action, local, remote, reason) {
|
|
let line = ['Sync'];
|
|
line.push(action);
|
|
line.push(reason);
|
|
|
|
if (local) {
|
|
let s = [];
|
|
s.push(local.id);
|
|
if ('title' in local) s.push('"' + local.title + '"');
|
|
line.push('(Local ' + s.join(', ') + ')');
|
|
}
|
|
|
|
if (remote) {
|
|
let s = [];
|
|
s.push(remote.id);
|
|
if ('title' in remote) s.push('"' + remote.title + '"');
|
|
line.push('(Remote ' + s.join(', ') + ')');
|
|
}
|
|
|
|
this.logger().debug(line.join(': '));
|
|
}
|
|
|
|
async logSyncSummary(report) {
|
|
for (let n in report) {
|
|
if (!report.hasOwnProperty(n)) continue;
|
|
if (n == 'errors') continue;
|
|
this.logger().info(n + ': ' + (report[n] ? report[n] : '-'));
|
|
}
|
|
let folderCount = await Folder.count();
|
|
let noteCount = await Note.count();
|
|
let resourceCount = await Resource.count();
|
|
this.logger().info('Total folders: ' + folderCount);
|
|
this.logger().info('Total notes: ' + noteCount);
|
|
this.logger().info('Total resources: ' + resourceCount);
|
|
|
|
if (report.errors.length) {
|
|
this.logger().warn('There was some errors:');
|
|
for (let i = 0; i < report.errors.length; i++) {
|
|
let e = report.errors[i];
|
|
//let msg = JSON.stringify(e); //e && e.message ? e.message : JSON.stringify(e);
|
|
this.logger().warn(e);
|
|
}
|
|
}
|
|
}
|
|
|
|
randomFailure(options, name) {
|
|
if (!options.randomFailures) return false;
|
|
|
|
if (this.randomFailureChoice_ == name) {
|
|
options.onMessage('Random failure: ' + name);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
cancel() {
|
|
if (this.cancelling_) return;
|
|
|
|
this.logger().info('Cancelling synchronization...');
|
|
this.cancelling_ = true;
|
|
}
|
|
|
|
cancelling() {
|
|
return this.cancelling_;
|
|
}
|
|
|
|
async start(options = null) {
|
|
if (!options) options = {};
|
|
if (!options.onProgress) options.onProgress = function(o) {};
|
|
|
|
if (this.state() != 'idle') {
|
|
this.logger().warn('Synchronization is already in progress. State: ' + this.state());
|
|
return;
|
|
}
|
|
|
|
this.randomFailureChoice_ = Math.floor(Math.random() * 5);
|
|
this.cancelling_ = false;
|
|
|
|
// ------------------------------------------------------------------------
|
|
// First, find all the items that have been changed since the
|
|
// last sync and apply the changes to remote.
|
|
// ------------------------------------------------------------------------
|
|
|
|
let synchronizationId = time.unixMs().toString();
|
|
this.logger().info('Starting synchronization... [' + synchronizationId + ']');
|
|
|
|
this.state_ = 'started';
|
|
|
|
let report = {
|
|
remotesToUpdate: 0,
|
|
remotesToDelete: 0,
|
|
localsToUdpate: 0,
|
|
localsToDelete: 0,
|
|
|
|
createLocal: 0,
|
|
updateLocal: 0,
|
|
deleteLocal: 0,
|
|
createRemote: 0,
|
|
updateRemote: 0,
|
|
deleteRemote: 0,
|
|
itemConflict: 0,
|
|
noteConflict: 0,
|
|
|
|
state: this.state(),
|
|
errors: [],
|
|
};
|
|
|
|
try {
|
|
await this.api().mkdir(this.syncDirName_);
|
|
await this.api().mkdir(this.resourceDirName_);
|
|
|
|
let donePaths = [];
|
|
while (true) {
|
|
if (this.cancelling()) break;
|
|
|
|
let result = await BaseItem.itemsThatNeedSync();
|
|
let locals = result.items;
|
|
|
|
report.remotesToUpdate += locals.length;
|
|
options.onProgress(report);
|
|
|
|
for (let i = 0; i < locals.length; i++) {
|
|
if (this.cancelling()) break;
|
|
|
|
let local = locals[i];
|
|
let ItemClass = BaseItem.itemClass(local);
|
|
let path = BaseItem.systemPath(local);
|
|
|
|
// Safety check to avoid infinite loops:
|
|
if (donePaths.indexOf(path) > 0) throw new Error(sprintf('Processing a path that has already been done: %s. sync_time was not updated?', path));
|
|
|
|
let remote = await this.api().stat(path);
|
|
let content = await ItemClass.serialize(local);
|
|
let action = null;
|
|
let updateSyncTimeOnly = true;
|
|
let reason = '';
|
|
|
|
if (!remote) {
|
|
if (!local.sync_time) {
|
|
action = 'createRemote';
|
|
reason = 'remote does not exist, and local is new and has never been synced';
|
|
} else {
|
|
// Note or item was modified after having been deleted remotely
|
|
action = local.type_ == BaseModel.TYPE_NOTE ? 'noteConflict' : 'itemConflict';
|
|
reason = 'remote has been deleted, but local has changes';
|
|
}
|
|
} else {
|
|
if (remote.updated_time > local.sync_time) {
|
|
// Since, in this loop, we are only dealing with notes that require sync, if the
|
|
// remote has been modified after the sync time, it means both notes have been
|
|
// modified and so there's a conflict.
|
|
action = local.type_ == BaseModel.TYPE_NOTE ? 'noteConflict' : 'itemConflict';
|
|
reason = 'both remote and local have changes';
|
|
} else {
|
|
action = 'updateRemote';
|
|
reason = 'local has changes';
|
|
}
|
|
}
|
|
|
|
this.logSyncOperation(action, local, remote, reason);
|
|
|
|
|
|
if (local.type_ == BaseModel.TYPE_RESOURCE && (action == 'createRemote' || (action == 'itemConflict' && remote))) {
|
|
let remoteContentPath = this.resourceDirName_ + '/' + local.id;
|
|
let resourceContent = await Resource.content(local);
|
|
await this.api().put(remoteContentPath, resourceContent);
|
|
}
|
|
|
|
if (action == 'createRemote' || action == 'updateRemote') {
|
|
|
|
// Make the operation atomic by doing the work on a copy of the file
|
|
// and then copying it back to the original location.
|
|
let tempPath = this.syncDirName_ + '/' + path + '_' + time.unixMs();
|
|
|
|
await this.api().put(tempPath, content);
|
|
await this.api().setTimestamp(tempPath, local.updated_time);
|
|
await this.api().move(tempPath, path);
|
|
|
|
if (this.randomFailure(options, 0)) return;
|
|
|
|
await ItemClass.save({ id: local.id, sync_time: time.unixMs(), type_: local.type_ }, { autoTimestamp: false });
|
|
|
|
} else if (action == 'itemConflict') {
|
|
|
|
if (remote) {
|
|
let remoteContent = await this.api().get(path);
|
|
local = await BaseItem.unserialize(remoteContent);
|
|
|
|
local.sync_time = time.unixMs();
|
|
await ItemClass.save(local, { autoTimestamp: false });
|
|
} else {
|
|
await ItemClass.delete(local.id);
|
|
}
|
|
|
|
} else if (action == 'noteConflict') {
|
|
|
|
// - Create a duplicate of local note into Conflicts folder (to preserve the user's changes)
|
|
// - Overwrite local note with remote note
|
|
let conflictedNote = Object.assign({}, local);
|
|
delete conflictedNote.id;
|
|
conflictedNote.is_conflict = 1;
|
|
await Note.save(conflictedNote, { autoTimestamp: false });
|
|
|
|
if (this.randomFailure(options, 1)) return;
|
|
|
|
if (remote) {
|
|
let remoteContent = await this.api().get(path);
|
|
local = await BaseItem.unserialize(remoteContent);
|
|
|
|
local.sync_time = time.unixMs();
|
|
await ItemClass.save(local, { autoTimestamp: false });
|
|
} else {
|
|
await ItemClass.delete(local.id);
|
|
}
|
|
|
|
}
|
|
|
|
report[action]++;
|
|
|
|
donePaths.push(path);
|
|
|
|
options.onProgress(report);
|
|
}
|
|
|
|
if (!result.hasMore) break;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
// Delete the remote items that have been deleted locally.
|
|
// ------------------------------------------------------------------------
|
|
|
|
let deletedItems = await BaseItem.deletedItems();
|
|
report.remotesToDelete = deletedItems.length;
|
|
options.onProgress(report);
|
|
for (let i = 0; i < deletedItems.length; i++) {
|
|
if (this.cancelling()) break;
|
|
|
|
let item = deletedItems[i];
|
|
let path = BaseItem.systemPath(item.item_id)
|
|
this.logSyncOperation('deleteRemote', null, { id: item.item_id }, 'local has been deleted');
|
|
await this.api().delete(path);
|
|
if (this.randomFailure(options, 2)) return;
|
|
await BaseItem.remoteDeletedItem(item.item_id);
|
|
|
|
report['deleteRemote']++;
|
|
options.onProgress(report);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
// Loop through all the remote items, find those that
|
|
// have been updated, and apply the changes to local.
|
|
// ------------------------------------------------------------------------
|
|
|
|
// At this point all the local items that have changed have been pushed to remote
|
|
// or handled as conflicts, so no conflict is possible after this.
|
|
|
|
let remoteIds = [];
|
|
let context = null;
|
|
|
|
while (true) {
|
|
if (this.cancelling()) break;
|
|
|
|
let listResult = await this.api().list('', { context: context });
|
|
let remotes = listResult.items;
|
|
for (let i = 0; i < remotes.length; i++) {
|
|
if (this.cancelling()) break;
|
|
|
|
let remote = remotes[i];
|
|
let path = remote.path;
|
|
|
|
remoteIds.push(BaseItem.pathToId(path));
|
|
if (donePaths.indexOf(path) > 0) continue;
|
|
|
|
let action = null;
|
|
let reason = '';
|
|
let local = await BaseItem.loadItemByPath(path);
|
|
if (!local) {
|
|
action = 'createLocal';
|
|
reason = 'remote exists but local does not';
|
|
} else {
|
|
if (remote.updated_time > local.updated_time) {
|
|
action = 'updateLocal';
|
|
reason = sprintf('remote is more recent than local');
|
|
}
|
|
}
|
|
|
|
if (!action) continue;
|
|
|
|
report.localsToUdpate++;
|
|
options.onProgress(report);
|
|
|
|
if (action == 'createLocal' || action == 'updateLocal') {
|
|
let content = await this.api().get(path);
|
|
if (content === null) {
|
|
this.logger().warn('Remote has been deleted between now and the list() call? In that case it will be handled during the next sync: ' + path);
|
|
continue;
|
|
}
|
|
content = await BaseItem.unserialize(content);
|
|
let ItemClass = BaseItem.itemClass(content);
|
|
|
|
let newContent = Object.assign({}, content);
|
|
newContent.sync_time = time.unixMs();
|
|
let options = {
|
|
autoTimestamp: false,
|
|
applyMetadataChanges: true,
|
|
};
|
|
if (action == 'createLocal') options.isNew = true;
|
|
|
|
if (newContent.type_ == BaseModel.TYPE_RESOURCE && action == 'createLocal') {
|
|
let localResourceContentPath = Resource.fullPath(newContent);
|
|
let remoteResourceContentPath = this.resourceDirName_ + '/' + newContent.id;
|
|
|
|
await this.api().get(remoteResourceContentPath, { path: localResourceContentPath, target: 'file' });
|
|
|
|
// if (this.appType_ == 'cli') {
|
|
// let remoteResourceContent = await this.api().get(remoteResourceContentPath, { encoding: 'binary' });
|
|
// await Resource.setContent(newContent, remoteResourceContent);
|
|
// } else if (this.appType_ == 'mobile') {
|
|
// await this.api().get(remoteResourceContentPath, { path: localResourceContentPath, target: 'file' });
|
|
// } else {
|
|
// throw new Error('Unknown appType: ' + this.appType_);
|
|
// }
|
|
}
|
|
|
|
await ItemClass.save(newContent, options);
|
|
|
|
this.logSyncOperation(action, local, content, reason);
|
|
} else {
|
|
this.logSyncOperation(action, local, remote, reason);
|
|
}
|
|
|
|
report[action]++;
|
|
|
|
options.onProgress(report);
|
|
}
|
|
|
|
if (!listResult.hasMore) break;
|
|
context = listResult.context;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
// Search, among the local IDs, those that don't exist remotely, which
|
|
// means the item has been deleted.
|
|
// ------------------------------------------------------------------------
|
|
|
|
if (this.randomFailure(options, 4)) return;
|
|
|
|
if (!this.cancelling()) {
|
|
let items = await BaseItem.syncedItems();
|
|
for (let i = 0; i < items.length; i++) {
|
|
if (this.cancelling()) break;
|
|
|
|
let item = items[i];
|
|
if (remoteIds.indexOf(item.id) < 0) {
|
|
report.localsToDelete++;
|
|
options.onProgress(report);
|
|
this.logSyncOperation('deleteLocal', { id: item.id }, null, 'remote has been deleted');
|
|
|
|
let ItemClass = BaseItem.itemClass(item);
|
|
await ItemClass.delete(item.id, { trackDeleted: false });
|
|
report['deleteLocal']++;
|
|
options.onProgress(report);
|
|
}
|
|
}
|
|
}
|
|
} catch (error) {
|
|
report.errors.push(error);
|
|
this.logger().error(error);
|
|
}
|
|
|
|
if (this.cancelling()) {
|
|
this.logger().info('Synchronization was cancelled.');
|
|
this.cancelling_ = false;
|
|
}
|
|
|
|
this.logger().info('Synchronization complete [' + synchronizationId + ']:');
|
|
await this.logSyncSummary(report);
|
|
|
|
this.state_ = 'idle';
|
|
|
|
report.state = this.state();
|
|
options.onProgress(report);
|
|
}
|
|
|
|
}
|
|
|
|
export { Synchronizer }; |