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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| const AbstractClientStore = require('express-brute/lib/AbstractClientStore') | ||
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| const KnexStore = module.exports = function (options) { | ||
| options = options || Object.create(null) | ||
|
|
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| AbstractClientStore.apply(this, arguments) | ||
| this.options = Object.assign(Object.create(null), KnexStore.defaults, options) | ||
|
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| if (this.options.knex) { | ||
| this.knex = this.options.knex | ||
| } else { | ||
| this.knex = require('knex')(KnexStore.defaultsKnex) | ||
| } | ||
|
|
||
| if (options.createTable === false) { | ||
| this.ready = Promise.resolve() | ||
| } else { | ||
| this.ready = this.knex.schema.hasTable(this.options.tablename) | ||
| .then((exists) => { | ||
| if (exists) { | ||
| return | ||
| } | ||
|
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| return this.knex.schema.createTable(this.options.tablename, (table) => { | ||
| table.string('key') | ||
| table.bigInteger('firstRequest').nullable() | ||
| table.bigInteger('lastRequest').nullable() | ||
| table.bigInteger('lifetime').nullable() | ||
| table.integer('count') | ||
| }) | ||
| }) | ||
| } | ||
| } | ||
| KnexStore.prototype = Object.create(AbstractClientStore.prototype) | ||
| KnexStore.prototype.set = async function (key, value, lifetime, callback) { | ||
| try { | ||
| lifetime = lifetime || 0 | ||
|
|
||
| await this.ready | ||
| const resp = await this.knex.transaction((trx) => { | ||
| return trx | ||
| .select('*') | ||
| .forUpdate() | ||
| .from(this.options.tablename) | ||
| .where('key', '=', key) | ||
| .then((foundKeys) => { | ||
| if (foundKeys.length === 0) { | ||
| return trx.from(this.options.tablename) | ||
| .insert({ | ||
| key: key, | ||
| lifetime: new Date(Date.now() + lifetime * 1000).getTime(), | ||
| lastRequest: new Date(value.lastRequest).getTime(), | ||
| firstRequest: new Date(value.firstRequest).getTime(), | ||
| count: value.count | ||
| }) | ||
| } else { | ||
| return trx(this.options.tablename) | ||
| .where('key', '=', key) | ||
| .update({ | ||
| lifetime: new Date(Date.now() + lifetime * 1000).getTime(), | ||
| count: value.count, | ||
| lastRequest: new Date(value.lastRequest).getTime() | ||
| }) | ||
| } | ||
| }) | ||
| }) | ||
| callback(null, resp) | ||
| } catch (err) { | ||
| callback(err, null) | ||
| } | ||
| } | ||
|
|
||
| KnexStore.prototype.get = async function (key, callback) { | ||
| try { | ||
| await this.ready | ||
| await this.clearExpired() | ||
| const resp = await this.knex.select('*') | ||
| .from(this.options.tablename) | ||
| .where('key', '=', key) | ||
| let o = null | ||
|
|
||
| if (resp[0]) { | ||
| o = {} | ||
| o.lastRequest = new Date(resp[0].lastRequest) | ||
| o.firstRequest = new Date(resp[0].firstRequest) | ||
| o.count = resp[0].count | ||
| } | ||
|
|
||
| callback(null, o) | ||
| } catch (err) { | ||
| callback(err, null) | ||
| } | ||
| } | ||
| KnexStore.prototype.reset = async function (key, callback) { | ||
| try { | ||
| await this.ready | ||
| const resp = await this.knex(this.options.tablename) | ||
| .where('key', '=', key) | ||
| .del() | ||
| callback(null, resp) | ||
| } catch (err) { | ||
| callback(err, null) | ||
| } | ||
| } | ||
|
|
||
| KnexStore.prototype.increment = async function (key, lifetime, callback) { | ||
| try { | ||
| const result = await this.get(key) | ||
| let resp = null | ||
| if (result) { | ||
| resp = await this.knex(this.options.tablename) | ||
| .increment('count', 1) | ||
| .where('key', '=', key) | ||
| } else { | ||
| resp = await this.knex(this.options.tablename) | ||
| .insert({ | ||
| key: key, | ||
| firstRequest: new Date().getTime(), | ||
| lastRequest: new Date().getTime(), | ||
| lifetime: new Date(Date.now() + lifetime * 1000).getTime(), | ||
| count: 1 | ||
| }) | ||
| } | ||
| callback(null, resp) | ||
| } catch (err) { | ||
| callback(err, null) | ||
| } | ||
| } | ||
|
|
||
| KnexStore.prototype.clearExpired = async function (callback) { | ||
| await this.ready | ||
| return this.knex(this.options.tablename) | ||
| .del() | ||
| .where('lifetime', '<', new Date().getTime()) | ||
| } | ||
|
|
||
| KnexStore.defaults = { | ||
| tablename: 'brute', | ||
| createTable: true | ||
| } | ||
|
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| KnexStore.defaultsKnex = { | ||
| client: 'sqlite3', | ||
| // debug: true, | ||
| connection: { | ||
| filename: './brute-knex.sqlite' | ||
| } | ||
| } |
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