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Merge pull request #3100 from mempool/simon/alias-search-syntax-error

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Fixes a syntax error with certain keywords
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wiz 2023-02-23 13:45:31 +09:00 • committed by GitHub
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1 changed files with 7 additions and 1 deletions
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8
backend/src/api/explorer/nodes.api.ts
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@ -362,7 +362,13 @@ class NodesApi {
public async $searchNodeByPublicKeyOrAlias(search: string) { public async $searchNodeByPublicKeyOrAlias(search: string) {
try { try {
const publicKeySearch = search.replace('%', '') + '%'; const publicKeySearch = search.replace('%', '') + '%';
const aliasSearch = search.replace(/[-_.]/g, ' ').replace(/[^a-zA-Z0-9 ]/g, '').split(' ').map((search) => '+' + search + '*').join(' '); const aliasSearch = search
.replace(/[-_.]/g, ' ') // Replace all -_. characters with empty space. Eg: "ln.nicehash" becomes "ln nicehash".
.replace(/[^a-zA-Z0-9 ]/g, '') // Remove all special characters and keep just A to Z, 0 to 9.
.split(' ')
.filter(key => key.length)
.map((search) => '+' + search + '*').join(' ');
// %keyword% is wildcard search and can't be indexed so it's slower as the node database grow. keyword% can be indexed but then you can't search for "Nicehash" and get result for ln.nicehash.com. So we use fulltext index for words "ln, nicehash, com" and nicehash* will find it instantly.
const query = `SELECT public_key, alias, capacity, channels, status FROM nodes WHERE public_key LIKE ? OR MATCH alias_search AGAINST (? IN BOOLEAN MODE) ORDER BY capacity DESC LIMIT 10`; const query = `SELECT public_key, alias, capacity, channels, status FROM nodes WHERE public_key LIKE ? OR MATCH alias_search AGAINST (? IN BOOLEAN MODE) ORDER BY capacity DESC LIMIT 10`;
const [rows]: any = await DB.query(query, [publicKeySearch, aliasSearch]); const [rows]: any = await DB.query(query, [publicKeySearch, aliasSearch]);
return rows; return rows;