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push sync

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This commit is contained in:
azivner 2017-10-26 21:16:21 -04:00
parent 9cef647811
commit 791314ba1a
2 changed files with 110 additions and 48 deletions
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26
routes/api/sync.js
View file

@ -2,32 +2,32 @@
const express = require('express');
const router = express.Router();
const sql = require('../../services/sql');
const auth = require('../../services/auth');
const utils = require('../../services/utils');
const sync = require('../../services/sync');
router.get('/changed/:since', auth.checkApiAuth, async (req, res, next) => {
const since = parseInt(req.params.since);
res.send({
'syncTimestamp': utils.nowTimestamp(),
'tree': await sql.getResults("select * from notes_tree where date_modified >= ?", [since]),
'notes': await sql.getFlattenedResults('note_id', "select note_id from notes where date_modified >= ?", [since]),
'audit_log': await sql.getResults("select * from audit_log where date_modified >= ?", [since])
res.send(await sync.getChangedSince(since));
});
router.put('/changed', auth.checkApiAuth, async (req, res, next) => {
await sync.putChanged(req.body);
res.send({});
});
router.get('/note/:noteId/:since', auth.checkApiAuth, async (req, res, next) => {
const noteId = req.params.noteId;
const since = parseInt(req.params.since);
const detail = await sql.getSingleResult("select * from notes where note_id = ?", [noteId]);
res.send({
'detail': detail,
'images': await sql.getResults("select * from images where note_id = ? order by note_offset", [noteId]),
'history': await sql.getResults("select * from notes_history where note_id = ? and date_modified_to >= ?", [noteId, since])
res.send(await sync.getNoteSince(noteId, since));
});
router.put('/note', auth.checkApiAuth, async (req, res, next) => {
await sync.putNote(req.body);
res.send({});
});
module.exports = router;

128
services/sync.js
View file

@ -4,6 +4,7 @@ const log = require('./log');
const rp = require('request-promise');
const sql = require('./sql');
const migration = require('./migration');
const utils = require('./utils');
const SYNC_SERVER = 'http://localhost:3000';
@ -11,10 +12,10 @@ const SYNC_SERVER = 'http://localhost:3000';
let syncInProgress = false;
async function pullSync() {
const lastSynced = parseInt(await sql.getOption('last_synced_pull'));
const lastSyncedPull = parseInt(await sql.getOption('last_synced_pull'));
const resp = await rp({
uri: SYNC_SERVER + '/api/sync/changed/' + lastSynced,
uri: SYNC_SERVER + '/api/sync/changed/' + lastSyncedPull,
headers: {
auth: 'sync'
},
@ -24,25 +25,11 @@ async function pullSync() {
try {
await sql.beginTransaction();
for (const treeItem of resp.tree) {
delete treeItem['id'];
await sql.insert("notes_tree", treeItem, true);
log.info("Syncing notes_tree " + treeItem.note_id);
}
for (const audit of resp.audit_log) {
delete audit['id'];
await sql.insert("audit_log", audit, true);
log.info("Syncing audit_log for noteId=" + audit.note_id);
}
await putChanged(resp);
for (const noteId of resp.notes) {
const note = await rp({
uri: SYNC_SERVER + "/api/sync/note/" + noteId + "/" + lastSynced,
uri: SYNC_SERVER + "/api/sync/note/" + noteId + "/" + lastSyncedPull,
headers: {
auth: 'sync'
},
@ -50,21 +37,7 @@ async function pullSync() {
});
await sql.insert("notes", note.detail, true);
await sql.remove("images", noteId);
for (const image of note.images) {
await sql.insert("images", image);
}
for (const history of note.history) {
delete history['id'];
await sql.insert("notes_history", history);
}
log.info("Syncing note" + noteId);
await putNote(note);
}
await sql.setOption('last_synced_pull', resp.syncTimestamp);
@ -79,7 +52,36 @@ async function pullSync() {
}
async function pushSync() {
const lastSyncedPush = parseInt(await sql.getOption('last_synced_push'));
const syncStarted = utils.nowTimestamp();
const changed = await getChangedSince(lastSyncedPush);
await rp({
method: 'PUT',
uri: SYNC_SERVER + '/api/sync/changed',
headers: {
auth: 'sync'
},
body: changed,
json: true
});
for (const noteId of changed.notes) {
const note = await getNoteSince(noteId);
await rp({
method: 'PUT',
uri: SYNC_SERVER + '/api/sync/note',
headers: {
auth: 'sync'
},
body: note,
json: true
});
}
await sql.setOption('last_synced_pull', syncStarted);
}
async function sync() {
@ -106,7 +108,67 @@ async function sync() {
}
}
async function getChangedSince(since) {
return {
'syncTimestamp': utils.nowTimestamp(),
'tree': await sql.getResults("select * from notes_tree where date_modified >= ?", [since]),
'notes': await sql.getFlattenedResults('note_id', "select note_id from notes where date_modified >= ?", [since]),
'audit_log': await sql.getResults("select * from audit_log where date_modified >= ?", [since])
};
}
async function getNoteSince(noteId, since) {
return {
'detail': await sql.getSingleResult("select * from notes where note_id = ?", [noteId]),
'images': await sql.getResults("select * from images where note_id = ? order by note_offset", [noteId]),
'history': await sql.getResults("select * from notes_history where note_id = ? and date_modified_to >= ?", [noteId, since])
};
}
async function putChanged(changed) {
for (const treeItem of changed.tree) {
delete treeItem['id'];
await sql.insert("notes_tree", treeItem, true);
log.info("Update/sync notes_tree " + treeItem.note_id);
}
for (const audit of changed.audit_log) {
delete audit['id'];
await sql.insert("audit_log", audit, true);
log.info("Update/sync audit_log for noteId=" + audit.note_id);
}
}
async function putNote(note) {
await sql.insert("notes", note.detail, true);
await sql.remove("images", node.detail.note_id);
for (const image of note.images) {
await sql.insert("images", image);
}
for (const history of note.history) {
delete history['id'];
await sql.insert("notes_history", history);
}
log.info("Update/sync note " + note.detail.note_id);
}
setInterval(sync, 60000);
// kickoff initial sync immediately
setTimeout(sync, 1000);
module.exports = {
getChangedSince,
getNoteSince,
putChanged,
putNote
};