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7 lines
18 KiB
7 lines
18 KiB
{ |
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"version": 3, |
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"sources": ["../../../src/dialects/postgres/connection-manager.js"], |
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"sourcesContent": ["'use strict';\n\nconst _ = require('lodash');\nconst AbstractConnectionManager = require('../abstract/connection-manager');\nconst { logger } = require('../../utils/logger');\nconst debug = logger.debugContext('connection:pg');\nconst sequelizeErrors = require('../../errors');\nconst semver = require('semver');\nconst dataTypes = require('../../data-types');\nconst momentTz = require('moment-timezone');\nconst { promisify } = require('util');\n\nclass ConnectionManager extends AbstractConnectionManager {\n constructor(dialect, sequelize) {\n sequelize.config.port = sequelize.config.port || 5432;\n super(dialect, sequelize);\n\n const pgLib = this._loadDialectModule('pg');\n this.lib = this.sequelize.config.native ? pgLib.native : pgLib;\n\n this._clearDynamicOIDs();\n this._clearTypeParser();\n this.refreshTypeParser(dataTypes.postgres);\n }\n\n // Expose this as a method so that the parsing may be updated when the user has added additional, custom types\n _refreshTypeParser(dataType) {\n const arrayParserBuilder = parser => {\n return value => this.lib.types.arrayParser.create(value, parser).parse();\n };\n const rangeParserBuilder = parser => {\n return value => dataType.parse(value, { parser });\n };\n\n // Set range parsers\n if (dataType.key.toLowerCase() === 'range') {\n for (const name in this.nameOidMap) {\n const entry = this.nameOidMap[name];\n if (! entry.rangeOid) continue;\n\n const rangeParser = rangeParserBuilder(this.getTypeParser(entry.oid));\n const arrayRangeParser = arrayParserBuilder(rangeParser);\n\n this.oidParserMap.set(entry.rangeOid, rangeParser);\n if (! entry.arrayRangeOid) continue;\n this.oidParserMap.set(entry.arrayRangeOid, arrayRangeParser);\n }\n return;\n }\n\n // Create parsers for normal or enum data types\n const parser = value => dataType.parse(value);\n const arrayParser = arrayParserBuilder(parser);\n\n // Set enum parsers\n if (dataType.key.toLowerCase() === 'enum') {\n this.enumOids.oids.forEach(oid => {\n this.oidParserMap.set(oid, parser);\n });\n this.enumOids.arrayOids.forEach(arrayOid => {\n this.oidParserMap.set(arrayOid, arrayParser);\n });\n return;\n }\n\n // Set parsers for normal data types\n dataType.types.postgres.forEach(name => {\n if (! this.nameOidMap[name]) return;\n this.oidParserMap.set(this.nameOidMap[name].oid, parser);\n\n if (! this.nameOidMap[name].arrayOid) return;\n this.oidParserMap.set(this.nameOidMap[name].arrayOid, arrayParser);\n });\n }\n\n _clearTypeParser() {\n this.oidParserMap = new Map();\n }\n\n getTypeParser(oid, ...args) {\n if (this.oidParserMap.get(oid)) return this.oidParserMap.get(oid);\n\n return this.lib.types.getTypeParser(oid, ...args);\n }\n\n async connect(config) {\n config.user = config.username;\n const connectionConfig = _.pick(config, [\n 'user', 'password', 'host', 'database', 'port'\n ]);\n\n connectionConfig.types = {\n getTypeParser: ConnectionManager.prototype.getTypeParser.bind(this)\n };\n\n if (config.dialectOptions) {\n _.merge(connectionConfig,\n _.pick(config.dialectOptions, [\n // see [http://www.postgresql.org/docs/9.3/static/runtime-config-logging.html#GUC-APPLICATION-NAME]\n 'application_name',\n // choose the SSL mode with the PGSSLMODE environment variable\n // object format: [https://github.com/brianc/node-postgres/blob/ee19e74ffa6309c9c5e8e01746261a8f651661f8/lib/connection.js#L79]\n // see also [http://www.postgresql.org/docs/9.3/static/libpq-ssl.html]\n 'ssl',\n // In addition to the values accepted by the corresponding server,\n // you can use \"auto\" to determine the right encoding from the\n // current locale in the client (LC_CTYPE environment variable on Unix systems)\n 'client_encoding',\n // !! DO NOT SET THIS TO TRUE !!\n // (unless you know what you're doing)\n // see [http://www.postgresql.org/message-id/flat/bc9549a50706040852u27633f41ib1e6b09f8339d845@mail.gmail.com#bc9549a50706040852u27633f41ib1e6b09f8339d845@mail.gmail.com]\n 'binary',\n // This should help with backends incorrectly considering idle clients to be dead and prematurely disconnecting them.\n // this feature has been added in pg module v6.0.0, check pg/CHANGELOG.md\n 'keepAlive',\n // Times out queries after a set time in milliseconds in the database end. Added in pg v7.3\n 'statement_timeout',\n // Times out queries after a set time in milliseconds in client end, query would be still running in database end.\n 'query_timeout',\n // Terminate any session with an open transaction that has been idle for longer than the specified duration in milliseconds. Added in pg v7.17.0 only supported in postgres >= 10\n 'idle_in_transaction_session_timeout',\n // Postgres allows additional session variables to be configured in the connection string in the `options` param.\n // see [https://www.postgresql.org/docs/14/libpq-connect.html#LIBPQ-CONNECT-OPTIONS]\n 'options'\n ]));\n }\n\n const connection = await new Promise((resolve, reject) => {\n let responded = false;\n\n const connection = new this.lib.Client(connectionConfig);\n\n const parameterHandler = message => {\n switch (message.parameterName) {\n case 'server_version':\n if (this.sequelize.options.databaseVersion === 0) {\n const version = semver.coerce(message.parameterValue).version;\n this.sequelize.options.databaseVersion = semver.valid(version)\n ? version\n : this.dialect.defaultVersion;\n }\n break;\n case 'standard_conforming_strings':\n connection['standard_conforming_strings'] = message.parameterValue;\n break;\n }\n };\n\n const endHandler = () => {\n debug('connection timeout');\n if (!responded) {\n reject(new sequelizeErrors.ConnectionTimedOutError(new Error('Connection timed out')));\n }\n };\n\n // If we didn't ever hear from the client.connect() callback the connection timeout\n // node-postgres does not treat this as an error since no active query was ever emitted\n connection.once('end', endHandler);\n\n if (!this.sequelize.config.native) {\n // Receive various server parameters for further configuration\n connection.connection.on('parameterStatus', parameterHandler);\n }\n\n connection.connect(err => {\n responded = true;\n\n if (!this.sequelize.config.native) {\n // remove parameter handler\n connection.connection.removeListener('parameterStatus', parameterHandler);\n }\n\n if (err) {\n if (err.code) {\n switch (err.code) {\n case 'ECONNREFUSED':\n reject(new sequelizeErrors.ConnectionRefusedError(err));\n break;\n case 'ENOTFOUND':\n reject(new sequelizeErrors.HostNotFoundError(err));\n break;\n case 'EHOSTUNREACH':\n reject(new sequelizeErrors.HostNotReachableError(err));\n break;\n case 'EINVAL':\n reject(new sequelizeErrors.InvalidConnectionError(err));\n break;\n default:\n reject(new sequelizeErrors.ConnectionError(err));\n break;\n }\n } else {\n reject(new sequelizeErrors.ConnectionError(err));\n }\n } else {\n debug('connection acquired');\n connection.removeListener('end', endHandler);\n resolve(connection);\n }\n });\n });\n\n // Don't let a Postgres restart (or error) to take down the whole app\n connection.once('error', error => {\n connection._invalid = true;\n debug(`connection error ${error.code || error.message}`);\n this.pool.destroy(connection);\n });\n\n let query = '';\n\n if (this.sequelize.options.standardConformingStrings !== false && connection['standard_conforming_strings'] !== 'on') {\n // Disable escape characters in strings\n // see https://github.com/sequelize/sequelize/issues/3545 (security issue)\n // see https://www.postgresql.org/docs/current/static/runtime-config-compatible.html#GUC-STANDARD-CONFORMING-STRINGS\n query += 'SET standard_conforming_strings=on;';\n }\n\n if (this.sequelize.options.clientMinMessages !== undefined) {\n console.warn('Usage of \"options.clientMinMessages\" is deprecated and will be removed in v7.');\n console.warn('Please use the sequelize option \"dialectOptions.clientMinMessages\" instead.');\n }\n\n // Redshift dosen't support client_min_messages, use 'ignore' to skip this settings.\n // If no option, the default value in sequelize is 'warning'\n if ( !( config.dialectOptions && config.dialectOptions.clientMinMessages && config.dialectOptions.clientMinMessages.toLowerCase() === 'ignore' ||\n this.sequelize.options.clientMinMessages === false ) ) {\n const clientMinMessages = config.dialectOptions && config.dialectOptions.clientMinMessages || this.sequelize.options.clientMinMessages || 'warning';\n query += `SET client_min_messages TO ${clientMinMessages};`;\n\n }\n\n if (!this.sequelize.config.keepDefaultTimezone) {\n const isZone = !!momentTz.tz.zone(this.sequelize.options.timezone);\n if (isZone) {\n query += `SET TIME ZONE '${this.sequelize.options.timezone}';`;\n } else {\n query += `SET TIME ZONE INTERVAL '${this.sequelize.options.timezone}' HOUR TO MINUTE;`;\n }\n }\n\n if (query) {\n await connection.query(query);\n }\n if (Object.keys(this.nameOidMap).length === 0 &&\n this.enumOids.oids.length === 0 &&\n this.enumOids.arrayOids.length === 0) {\n await this._refreshDynamicOIDs(connection);\n }\n\n return connection;\n }\n\n async disconnect(connection) {\n if (connection._ending) {\n debug('connection tried to disconnect but was already at ENDING state');\n return;\n }\n\n return await promisify(callback => connection.end(callback))();\n }\n\n validate(connection) {\n return !connection._invalid && !connection._ending;\n }\n\n async _refreshDynamicOIDs(connection) {\n const databaseVersion = this.sequelize.options.databaseVersion;\n const supportedVersion = '8.3.0';\n\n // Check for supported version\n if ( (databaseVersion && semver.gte(databaseVersion, supportedVersion)) === false) {\n return;\n }\n\n const results = await (connection || this.sequelize).query(\n 'WITH ranges AS (' +\n ' SELECT pg_range.rngtypid, pg_type.typname AS rngtypname,' +\n ' pg_type.typarray AS rngtyparray, pg_range.rngsubtype' +\n ' FROM pg_range LEFT OUTER JOIN pg_type ON pg_type.oid = pg_range.rngtypid' +\n ')' +\n 'SELECT pg_type.typname, pg_type.typtype, pg_type.oid, pg_type.typarray,' +\n ' ranges.rngtypname, ranges.rngtypid, ranges.rngtyparray' +\n ' FROM pg_type LEFT OUTER JOIN ranges ON pg_type.oid = ranges.rngsubtype' +\n ' WHERE (pg_type.typtype IN(\\'b\\', \\'e\\'));'\n );\n\n let result = Array.isArray(results) ? results.pop() : results;\n\n // When searchPath is prepended then two statements are executed and the result is\n // an array of those two statements. First one is the SET search_path and second is\n // the SELECT query result.\n if (Array.isArray(result)) {\n if (result[0].command === 'SET') {\n result = result.pop();\n }\n }\n\n const newNameOidMap = {};\n const newEnumOids = { oids: [], arrayOids: [] };\n\n for (const row of result.rows) {\n // Mapping enums, handled separatedly\n if (row.typtype === 'e') {\n newEnumOids.oids.push(row.oid);\n if (row.typarray) newEnumOids.arrayOids.push(row.typarray);\n continue;\n }\n\n // Mapping base types and their arrays\n newNameOidMap[row.typname] = { oid: row.oid };\n if (row.typarray) newNameOidMap[row.typname].arrayOid = row.typarray;\n\n // Mapping ranges(of base types) and their arrays\n if (row.rngtypid) {\n newNameOidMap[row.typname].rangeOid = row.rngtypid;\n if (row.rngtyparray) newNameOidMap[row.typname].arrayRangeOid = row.rngtyparray;\n }\n }\n\n // Replace all OID mappings. Avoids temporary empty OID mappings.\n this.nameOidMap = newNameOidMap;\n this.enumOids = newEnumOids;\n\n this.refreshTypeParser(dataTypes.postgres);\n }\n\n _clearDynamicOIDs() {\n this.nameOidMap = {};\n this.enumOids = { oids: [], arrayOids: [] };\n }\n}\n\nmodule.exports = ConnectionManager;\nmodule.exports.ConnectionManager = ConnectionManager;\nmodule.exports.default = ConnectionManager;\n"], |
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