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split hash checks per table with recent notes not reported into frontend as error

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This commit is contained in:
azivner 2017-12-15 21:14:10 -05:00
parent 206a6dd6e7
commit 6edaf0ed00
4 changed files with 73 additions and 33 deletions
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2
routes/api/sync.js
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@ -11,7 +11,7 @@ const content_hash = require('../../services/content_hash');
router.get('/check', auth.checkApiAuth, async (req, res, next) => {
res.send({
'content_hash': await content_hash.getContentHash(),
'hashes': await content_hash.getHashes(),
'max_sync_id': await sql.getSingleValue('SELECT MAX(id) FROM sync')
});
});

67
services/content_hash.js
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@ -2,7 +2,9 @@ const sql = require('./sql');
const utils = require('./utils');
const options = require('./options');
function updateHash(hash, rows) {
function getHash(rows) {
let hash = '';
for (const row of rows) {
hash = utils.hash(hash + JSON.stringify(row));
}
@ -10,29 +12,58 @@ function updateHash(hash, rows) {
return hash;
}
async function getContentHash() {
let hash = '';
async function getHashes() {
const optionsQuestionMarks = Array(options.SYNCED_OPTIONS.length).fill('?').join(',');
hash = updateHash(hash, await sql.getResults("SELECT note_id, note_title, note_text, date_modified, is_protected, " +
"is_deleted FROM notes ORDER BY note_id"));
return {
notes: getHash(await sql.getResults(`SELECT
note_id,
note_title,
note_text,
date_modified,
is_protected,
is_deleted
FROM notes
ORDER BY note_id`)),
hash = updateHash(hash, await sql.getResults("SELECT note_tree_id, note_id, note_pid, note_pos, date_modified, " +
"is_deleted, prefix FROM notes_tree ORDER BY note_tree_id"));
notes_tree: getHash(await sql.getResults(`SELECT
note_tree_id,
note_id,
note_pid,
note_pos,
date_modified,
is_deleted,
prefix
FROM notes_tree
ORDER BY note_tree_id`)),
hash = updateHash(hash, await sql.getResults("SELECT note_history_id, note_id, note_title, note_text, " +
"date_modified_from, date_modified_to FROM notes_history ORDER BY note_history_id"));
notes_history: getHash(await sql.getResults(`SELECT
note_history_id,
note_id,
note_title,
note_text,
date_modified_from,
date_modified_to
FROM notes_history
ORDER BY note_history_id`)),
hash = updateHash(hash, await sql.getResults("SELECT note_tree_id, note_path, date_accessed, is_deleted FROM recent_notes " +
"ORDER BY note_path"));
recent_notes: getHash(await sql.getResults(`SELECT
note_tree_id,
note_path,
date_accessed,
is_deleted
FROM recent_notes
ORDER BY note_path`)),
const questionMarks = Array(options.SYNCED_OPTIONS.length).fill('?').join(',');
hash = updateHash(hash, await sql.getResults("SELECT opt_name, opt_value FROM options " +
"WHERE opt_name IN (" + questionMarks + ") ORDER BY opt_name", options.SYNCED_OPTIONS));
return hash;
options: getHash(await sql.getResults(`SELECT
opt_name,
opt_value
FROM options
WHERE opt_name IN (${optionsQuestionMarks})
ORDER BY opt_name`, options.SYNCED_OPTIONS))
};
}
module.exports = {
getContentHash
getHashes
};

35
services/sync.js
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@ -127,7 +127,7 @@ async function pullSync(syncContext) {
const resp = await syncRequest(syncContext, 'GET', "/api/sync/" + sync.entity_name + "/" + encodeURIComponent(sync.entity_id));
if (!resp) {
if (!resp || !resp.entity) {
log.error("Empty response to pull for " + sync.entity_name + ", id=" + sync.entity_id);
}
else if (sync.entity_name === 'notes') {
@ -254,21 +254,30 @@ async function checkContentHash(syncContext) {
const resp = await syncRequest(syncContext, 'GET', '/api/sync/check');
// if (await getLastSyncedPull() < resp.max_sync_id) {
// log.info("There are some outstanding pulls, skipping content check.");
//
// return;
// }
if (await getLastSyncedPull() < resp.max_sync_id) {
log.info("There are some outstanding pulls, skipping content check.");
const localContentHash = await content_hash.getContentHash();
if (resp.content_hash === localContentHash) {
log.info("Content hash check PASSED with value: " + localContentHash);
return;
}
else {
await messaging.sendMessage({type: 'sync-hash-check-failed'});
await event_log.addEvent("Content hash check FAILED. Local is " + localContentHash + ", remote is " + resp.content_hash);
const hashes = await content_hash.getHashes();
let allChecksPassed = true;
for (const key in hashes) {
if (hashes[key] !== resp.hashes[key]) {
allChecksPassed = true;
await event_log.addEvent(`Content hash check for ${key} FAILED. Local is ${hashes[key]}, remote is ${resp.hashes[key]}`);
if (key !== 'recent_notes') {
// let's not get alarmed about recent notes which get updated often and can cause failures in race conditions
await messaging.sendMessage({type: 'sync-hash-check-failed'});
}
}
}
if (allChecksPassed) {
log.info("Content hash checks PASSED");
}
}

2
services/sync_table.js
View File

@ -38,7 +38,7 @@ async function addEntitySync(entityName, entityId, sourceId) {
if (!sync_setup.isSyncSetup) {
// this is because the "server" instances shouldn't have outstanding pushes
// useful when you fork the DB for new "client" instance, it won't try to sync the whole DB
await sql.execute("UPDATE options SET opt_value = (SELECT MAX(id) FROM sync) WHERE opt_name = 'last_synced_push'");
await sql.execute("UPDATE options SET opt_value = (SELECT MAX(id) FROM sync) WHERE opt_name IN('last_synced_push', 'last_synced_pull')");
}
}