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don't push changes to server which have been pulled from it

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This commit is contained in:
azivner 2017-11-01 23:16:21 -04:00
parent 1cf247f164
commit a5735961a4
2 changed files with 44 additions and 25 deletions
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5
routes/api/login.js
View File

@ -5,6 +5,7 @@ const router = express.Router();
const sql = require('../../services/sql'); const sql = require('../../services/sql');
const utils = require('../../services/utils'); const utils = require('../../services/utils');
const migration = require('../../services/migration'); const migration = require('../../services/migration');
const SOURCE_ID = require('../../services/source_id');
router.post('', async (req, res, next) => { router.post('', async (req, res, next) => {
const timestamp = req.body.timestamp; const timestamp = req.body.timestamp;
@ -35,7 +36,9 @@ router.post('', async (req, res, next) => {
req.session.loggedIn = true; req.session.loggedIn = true;
res.send({}); res.send({
sourceId: SOURCE_ID
});
}); });
module.exports = router; module.exports = router;

64
services/sync.js
View File

@ -15,7 +15,7 @@ const isSyncSetup = !!SYNC_SERVER;
let syncInProgress = false; let syncInProgress = false;
async function pullSync(cookieJar, syncLog) { async function pullSync(syncContext, syncLog) {
const lastSyncedPull = parseInt(await sql.getOption('last_synced_pull')); const lastSyncedPull = parseInt(await sql.getOption('last_synced_pull'));
let syncRows; let syncRows;
@ -25,7 +25,7 @@ async function pullSync(cookieJar, syncLog) {
syncRows = await rp({ syncRows = await rp({
uri: SYNC_SERVER + '/api/sync/changed?lastSyncId=' + lastSyncedPull + "&sourceId=" + SOURCE_ID, uri: SYNC_SERVER + '/api/sync/changed?lastSyncId=' + lastSyncedPull + "&sourceId=" + SOURCE_ID,
jar: cookieJar, jar: syncContext.cookieJar,
json: true, json: true,
timeout: 5 * 1000 timeout: 5 * 1000
}); });
@ -43,7 +43,7 @@ async function pullSync(cookieJar, syncLog) {
resp = await rp({ resp = await rp({
uri: SYNC_SERVER + "/api/sync/" + sync.entity_name + "/" + sync.entity_id, uri: SYNC_SERVER + "/api/sync/" + sync.entity_name + "/" + sync.entity_id,
json: true, json: true,
jar: cookieJar jar: syncContext.cookieJar
}); });
} }
catch (e) { catch (e) {
@ -69,7 +69,7 @@ async function pullSync(cookieJar, syncLog) {
logSync("Finished pull"); logSync("Finished pull");
} }
async function pushEntity(entity, entityName, cookieJar, syncLog) { async function sendEntity(entity, entityName, cookieJar, syncLog) {
try { try {
const payload = { const payload = {
sourceId: SOURCE_ID, sourceId: SOURCE_ID,
@ -94,20 +94,7 @@ async function pushEntity(entity, entityName, cookieJar, syncLog) {
} }
} }
async function pushSync(cookieJar, syncLog) { async function readAndPushEntity(sync, syncLog, syncContext) {
let lastSyncedPush = parseInt(await sql.getOption('last_synced_push'));
while (true) {
const sync = await sql.getSingleResultOrNull('SELECT * FROM sync WHERE id > ? LIMIT 1', [lastSyncedPush]);
if (sync === null) {
// nothing to sync
logSync("Nothing to push", syncLog);
break;
}
let entity; let entity;
if (sync.entity_name === 'notes') { if (sync.entity_name === 'notes') {
@ -125,7 +112,31 @@ async function pushSync(cookieJar, syncLog) {
logSync("Pushing changes in " + sync.entity_name + " " + sync.entity_id); logSync("Pushing changes in " + sync.entity_name + " " + sync.entity_id);
await pushEntity(entity, sync.entity_name, cookieJar, syncLog); await sendEntity(entity, sync.entity_name, syncContext.cookieJar, syncLog);
}
async function pushSync(syncContext, syncLog) {
let lastSyncedPush = parseInt(await sql.getOption('last_synced_push'));
while (true) {
const sync = await sql.getSingleResultOrNull('SELECT * FROM sync WHERE id > ? LIMIT 1', [lastSyncedPush]);
if (sync === null) {
// nothing to sync
logSync("Nothing to push", syncLog);
break;
}
console.log("sync: ", sync);
if (sync.sourceId === syncContext.sourceId) {
logSync("Skipping sync " + sync.entity_name + " " + sync.entity_id + " because it originates from sync target", syncLog);
}
else {
await readAndPushEntity(sync, syncLog, syncContext);
}
lastSyncedPush = sync.id; lastSyncedPush = sync.id;
@ -142,7 +153,7 @@ async function login(syncLog) {
const cookieJar = rp.jar(); const cookieJar = rp.jar();
try { try {
await rp({ const resp = await rp({
method: 'POST', method: 'POST',
uri: SYNC_SERVER + '/api/login', uri: SYNC_SERVER + '/api/login',
body: { body: {
@ -155,7 +166,10 @@ async function login(syncLog) {
jar: cookieJar jar: cookieJar
}); });
return cookieJar; return {
cookieJar: cookieJar,
sourceId: resp.sourceId
};
} }
catch (e) { catch (e) {
logSyncError("Can't login to API for sync, inner exception: ", e, syncLog); logSyncError("Can't login to API for sync, inner exception: ", e, syncLog);
@ -180,11 +194,13 @@ async function sync() {
return syncLog; return syncLog;
} }
const cookieJar = await login(syncLog); const syncContext = await login(syncLog);
await pullSync(cookieJar, syncLog); console.log("sync context: ", syncContext);
await pushSync(cookieJar, syncLog); await pullSync(syncContext, syncLog);
await pushSync(syncContext, syncLog);
} }
catch (e) { catch (e) {
logSync("sync failed: " + e.stack, syncLog); logSync("sync failed: " + e.stack, syncLog);