UNPKG

tedious

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A TDS driver, for connecting to MS SQLServer databases.

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"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.getParameterEncryptionMetadata = void 0; var _types = require("./types"); var _cekEntry = require("./cek-entry"); var _keyCrypto = require("./key-crypto"); var _dataType = require("../data-type"); var _request = _interopRequireDefault(require("../request")); var _rpcrequestPayload = _interopRequireDefault(require("../rpcrequest-payload")); var _packet = require("../packet"); function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; } // This code is based on the `mssql-jdbc` library published under the conditions of MIT license. // Copyright (c) 2019 Microsoft Corporation const getParameterEncryptionMetadata = (connection, request, callback) => { if (request.cryptoMetadataLoaded === true) { return callback(); } const metadataRequest = new _request.default('sp_describe_parameter_encryption', error => { if (error) { return callback(error); } const decryptSymmetricKeyPromises = []; const cekList = []; let paramCount = 0; for (const columns of resultRows) { try { const isFirstRecordSet = columns.some(col => (col && col.metadata && col.metadata.colName) === 'database_id'); if (isFirstRecordSet === true) { const currentOrdinal = columns[_types.DescribeParameterEncryptionResultSet1.KeyOrdinal].value; let cekEntry; if (!cekList[currentOrdinal]) { cekEntry = new _cekEntry.CEKEntry(currentOrdinal); cekList[cekEntry.ordinal] = cekEntry; } else { cekEntry = cekList[currentOrdinal]; } cekEntry.add(columns[_types.DescribeParameterEncryptionResultSet1.EncryptedKey].value, columns[_types.DescribeParameterEncryptionResultSet1.DbId].value, columns[_types.DescribeParameterEncryptionResultSet1.KeyId].value, columns[_types.DescribeParameterEncryptionResultSet1.KeyVersion].value, columns[_types.DescribeParameterEncryptionResultSet1.KeyMdVersion].value, columns[_types.DescribeParameterEncryptionResultSet1.KeyPath].value, columns[_types.DescribeParameterEncryptionResultSet1.ProviderName].value, columns[_types.DescribeParameterEncryptionResultSet1.KeyEncryptionAlgorithm].value); } else { paramCount++; const paramName = columns[_types.DescribeParameterEncryptionResultSet2.ParameterName].value; const paramIndex = request.parameters.findIndex(param => paramName === `@${param.name}`); const cekOrdinal = columns[_types.DescribeParameterEncryptionResultSet2.ColumnEncryptionKeyOrdinal].value; const cekEntry = cekList[cekOrdinal]; if (cekEntry && cekList.length < cekOrdinal) { return callback(new Error(`Internal error. The referenced column encryption key ordinal "${cekOrdinal}" is missing in the encryption metadata returned by sp_describe_parameter_encryption. Max ordinal is "${cekList.length}".`)); } const encType = columns[_types.DescribeParameterEncryptionResultSet2.ColumnEncrytionType].value; if (_types.SQLServerEncryptionType.PlainText !== encType) { request.parameters[paramIndex].cryptoMetadata = { cekEntry: cekEntry, ordinal: cekOrdinal, cipherAlgorithmId: columns[_types.DescribeParameterEncryptionResultSet2.ColumnEncryptionAlgorithm].value, encryptionType: encType, normalizationRuleVersion: Buffer.from([columns[_types.DescribeParameterEncryptionResultSet2.NormalizationRuleVersion].value]) }; decryptSymmetricKeyPromises.push((0, _keyCrypto.decryptSymmetricKey)(request.parameters[paramIndex].cryptoMetadata, connection.config.options)); } else if (request.parameters[paramIndex].forceEncrypt === true) { return callback(new Error(`Cannot execute statement or procedure ${request.sqlTextOrProcedure} because Force Encryption was set as true for parameter ${paramIndex + 1} and the database expects this parameter to be sent as plaintext. This may be due to a configuration error.`)); } } } catch { return callback(new Error(`Internal error. Unable to parse parameter encryption metadata in statement or procedure "${request.sqlTextOrProcedure}"`)); } } if (paramCount !== request.parameters.length) { return callback(new Error(`Internal error. Metadata for some parameters in statement or procedure "${request.sqlTextOrProcedure}" is missing in the resultset returned by sp_describe_parameter_encryption.`)); } return Promise.all(decryptSymmetricKeyPromises).then(() => { request.cryptoMetadataLoaded = true; process.nextTick(callback); }, error => { process.nextTick(callback, error); }); }); metadataRequest.addParameter('tsql', _dataType.typeByName.NVarChar, request.sqlTextOrProcedure); if (request.parameters.length) { metadataRequest.addParameter('params', _dataType.typeByName.NVarChar, metadataRequest.makeParamsParameter(request.parameters)); } const resultRows = []; metadataRequest.on('row', columns => { resultRows.push(columns); }); // This request is built from raw `Parameter`s rather than a `Request` // that has been through `validateParameters`, so they are resolved inline. connection.makeRequest(metadataRequest, _packet.TYPE.RPC_REQUEST, new _rpcrequestPayload.default(metadataRequest.sqlTextOrProcedure, metadataRequest.parameters.map(parameter => (0, _dataType.resolveParameter)(parameter, connection.databaseCollation, connection.config.options)), connection.currentTransactionDescriptor(), connection.config.options)); }; exports.getParameterEncryptionMetadata = getParameterEncryptionMetadata; //# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["_types","require","_cekEntry","_keyCrypto","_dataType","_request","_interopRequireDefault","_rpcrequestPayload","_packet","e","__esModule","default","getParameterEncryptionMetadata","connection","request","callback","cryptoMetadataLoaded","metadataRequest","Request","error","decryptSymmetricKeyPromises","cekList","paramCount","columns","resultRows","isFirstRecordSet","some","col","metadata","colName","currentOrdinal","DescribeParameterEncryptionResultSet1","KeyOrdinal","value","cekEntry","CEKEntry","ordinal","add","EncryptedKey","DbId","KeyId","KeyVersion","KeyMdVersion","KeyPath","ProviderName","KeyEncryptionAlgorithm","paramName","DescribeParameterEncryptionResultSet2","ParameterName","paramIndex","parameters","findIndex","param","name","cekOrdinal","ColumnEncryptionKeyOrdinal","length","Error","encType","ColumnEncrytionType","SQLServerEncryptionType","PlainText","cryptoMetadata","cipherAlgorithmId","ColumnEncryptionAlgorithm","encryptionType","normalizationRuleVersion","Buffer","from","NormalizationRuleVersion","push","decryptSymmetricKey","config","options","forceEncrypt","sqlTextOrProcedure","Promise","all","then","process","nextTick","addParameter","TYPES","NVarChar","makeParamsParameter","on","makeRequest","TYPE","RPC_REQUEST","RpcRequestPayload","map","parameter","resolveParameter","databaseCollation","currentTransactionDescriptor","exports"],"sources":["../../src/always-encrypted/get-parameter-encryption-metadata.ts"],"sourcesContent":["// This code is based on the `mssql-jdbc` library published under the conditions of MIT license.\n// Copyright (c) 2019 Microsoft Corporation\n\nimport { SQLServerEncryptionType, type CryptoMetadata, DescribeParameterEncryptionResultSet1, DescribeParameterEncryptionResultSet2 } from './types';\nimport { CEKEntry } from './cek-entry';\nimport { decryptSymmetricKey } from './key-crypto';\nimport { typeByName as TYPES, type Parameter, resolveParameter } from '../data-type';\nimport Request from '../request';\nimport Connection from '../connection';\nimport RpcRequestPayload from '../rpcrequest-payload';\nimport { TYPE } from '../packet';\n\nexport const getParameterEncryptionMetadata = (connection: Connection, request: Request, callback: (error?: Error) => void) => {\n  if (request.cryptoMetadataLoaded === true) {\n    return callback();\n  }\n\n  const metadataRequest = new Request('sp_describe_parameter_encryption', (error) => {\n    if (error) {\n      return callback(error);\n    }\n\n    const decryptSymmetricKeyPromises: Promise<void>[] = [];\n    const cekList: CEKEntry[] = [];\n    let paramCount = 0;\n\n    for (const columns of resultRows) {\n      try {\n        const isFirstRecordSet = columns.some((col: any) => (col && col.metadata && col.metadata.colName) === 'database_id');\n        if (isFirstRecordSet === true) {\n          const currentOrdinal = columns[DescribeParameterEncryptionResultSet1.KeyOrdinal].value;\n          let cekEntry: CEKEntry;\n          if (!cekList[currentOrdinal]) {\n            cekEntry = new CEKEntry(currentOrdinal);\n            cekList[cekEntry.ordinal] = cekEntry;\n          } else {\n            cekEntry = cekList[currentOrdinal];\n          }\n          cekEntry.add(columns[DescribeParameterEncryptionResultSet1.EncryptedKey].value,\n                       columns[DescribeParameterEncryptionResultSet1.DbId].value,\n                       columns[DescribeParameterEncryptionResultSet1.KeyId].value,\n                       columns[DescribeParameterEncryptionResultSet1.KeyVersion].value,\n                       columns[DescribeParameterEncryptionResultSet1.KeyMdVersion].value,\n                       columns[DescribeParameterEncryptionResultSet1.KeyPath].value,\n                       columns[DescribeParameterEncryptionResultSet1.ProviderName].value,\n                       columns[DescribeParameterEncryptionResultSet1.KeyEncryptionAlgorithm].value);\n        } else {\n          paramCount++;\n          const paramName: string = columns[DescribeParameterEncryptionResultSet2.ParameterName].value;\n          const paramIndex: number = request.parameters.findIndex((param: Parameter) => paramName === `@${param.name}`);\n          const cekOrdinal: number = columns[DescribeParameterEncryptionResultSet2.ColumnEncryptionKeyOrdinal].value;\n          const cekEntry: CEKEntry = cekList[cekOrdinal];\n\n          if (cekEntry && cekList.length < cekOrdinal) {\n            return callback(new Error(`Internal error. The referenced column encryption key ordinal \"${cekOrdinal}\" is missing in the encryption metadata returned by sp_describe_parameter_encryption. Max ordinal is \"${cekList.length}\".`));\n          }\n\n          const encType = columns[DescribeParameterEncryptionResultSet2.ColumnEncrytionType].value;\n          if (SQLServerEncryptionType.PlainText !== encType) {\n            request.parameters[paramIndex].cryptoMetadata = {\n              cekEntry: cekEntry,\n              ordinal: cekOrdinal,\n              cipherAlgorithmId: columns[DescribeParameterEncryptionResultSet2.ColumnEncryptionAlgorithm].value,\n              encryptionType: encType,\n              normalizationRuleVersion: Buffer.from([columns[DescribeParameterEncryptionResultSet2.NormalizationRuleVersion].value]),\n            };\n            decryptSymmetricKeyPromises.push(decryptSymmetricKey(request.parameters[paramIndex].cryptoMetadata as CryptoMetadata, connection.config.options));\n          } else if (request.parameters[paramIndex].forceEncrypt === true) {\n            return callback(new Error(`Cannot execute statement or procedure ${request.sqlTextOrProcedure} because Force Encryption was set as true for parameter ${paramIndex + 1} and the database expects this parameter to be sent as plaintext. This may be due to a configuration error.`));\n          }\n        }\n      } catch {\n        return callback(new Error(`Internal error. Unable to parse parameter encryption metadata in statement or procedure \"${request.sqlTextOrProcedure}\"`));\n      }\n    }\n\n    if (paramCount !== request.parameters.length) {\n      return callback(new Error(`Internal error. Metadata for some parameters in statement or procedure \"${request.sqlTextOrProcedure}\" is missing in the resultset returned by sp_describe_parameter_encryption.`));\n    }\n\n    return Promise.all(decryptSymmetricKeyPromises).then(() => {\n      request.cryptoMetadataLoaded = true;\n      process.nextTick(callback);\n    }, (error) => {\n      process.nextTick(callback, error);\n    });\n  });\n\n  metadataRequest.addParameter('tsql', TYPES.NVarChar, request.sqlTextOrProcedure);\n  if (request.parameters.length) {\n    metadataRequest.addParameter('params', TYPES.NVarChar, metadataRequest.makeParamsParameter(request.parameters));\n  }\n\n  const resultRows: any[] = [];\n\n  metadataRequest.on('row', (columns: any) => {\n    resultRows.push(columns);\n  });\n\n  // This request is built from raw `Parameter`s rather than a `Request`\n  // that has been through `validateParameters`, so they are resolved inline.\n  connection.makeRequest(metadataRequest, TYPE.RPC_REQUEST, new 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