tedious
Version:
A TDS driver, for connecting to MS SQLServer databases.
183 lines (158 loc) • 19.7 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _collation = require("../collation");
var _token = require("./token");
const types = {
1: {
name: 'DATABASE',
event: 'databaseChange'
},
2: {
name: 'LANGUAGE',
event: 'languageChange'
},
3: {
name: 'CHARSET',
event: 'charsetChange'
},
4: {
name: 'PACKET_SIZE',
event: 'packetSizeChange'
},
7: {
name: 'SQL_COLLATION',
event: 'sqlCollationChange'
},
8: {
name: 'BEGIN_TXN',
event: 'beginTransaction'
},
9: {
name: 'COMMIT_TXN',
event: 'commitTransaction'
},
10: {
name: 'ROLLBACK_TXN',
event: 'rollbackTransaction'
},
13: {
name: 'DATABASE_MIRRORING_PARTNER',
event: 'partnerNode'
},
17: {
name: 'TXN_ENDED'
},
18: {
name: 'RESET_CONNECTION',
event: 'resetConnection'
},
20: {
name: 'ROUTING_CHANGE',
event: 'routingChange'
}
};
function readNewAndOldValue(parser, length, type, callback) {
switch (type.name) {
case 'DATABASE':
case 'LANGUAGE':
case 'CHARSET':
case 'PACKET_SIZE':
case 'DATABASE_MIRRORING_PARTNER':
return parser.readBVarChar(newValue => {
parser.readBVarChar(oldValue => {
switch (type.name) {
case 'PACKET_SIZE':
return callback(new _token.PacketSizeEnvChangeToken(parseInt(newValue), parseInt(oldValue)));
case 'DATABASE':
return callback(new _token.DatabaseEnvChangeToken(newValue, oldValue));
case 'LANGUAGE':
return callback(new _token.LanguageEnvChangeToken(newValue, oldValue));
case 'CHARSET':
return callback(new _token.CharsetEnvChangeToken(newValue, oldValue));
case 'DATABASE_MIRRORING_PARTNER':
return callback(new _token.DatabaseMirroringPartnerEnvChangeToken(newValue, oldValue));
}
});
});
case 'SQL_COLLATION':
case 'BEGIN_TXN':
case 'COMMIT_TXN':
case 'ROLLBACK_TXN':
case 'RESET_CONNECTION':
return parser.readBVarByte(newValue => {
parser.readBVarByte(oldValue => {
switch (type.name) {
case 'SQL_COLLATION':
{
const newCollation = newValue.length ? _collation.Collation.fromBuffer(newValue) : undefined;
const oldCollation = oldValue.length ? _collation.Collation.fromBuffer(oldValue) : undefined;
return callback(new _token.CollationChangeToken(newCollation, oldCollation));
}
case 'BEGIN_TXN':
return callback(new _token.BeginTransactionEnvChangeToken(newValue, oldValue));
case 'COMMIT_TXN':
return callback(new _token.CommitTransactionEnvChangeToken(newValue, oldValue));
case 'ROLLBACK_TXN':
return callback(new _token.RollbackTransactionEnvChangeToken(newValue, oldValue));
case 'RESET_CONNECTION':
return callback(new _token.ResetConnectionEnvChangeToken(newValue, oldValue));
}
});
});
case 'ROUTING_CHANGE':
return parser.readUInt16LE(valueLength => {
// Routing Change:
// Byte 1: Protocol (must be 0)
// Bytes 2-3 (USHORT): Port number
// Bytes 4-5 (USHORT): Length of server data in unicode (2byte chars)
// Bytes 6-*: Server name in unicode characters
parser.readBuffer(valueLength, routePacket => {
const protocol = routePacket.readUInt8(0);
if (protocol !== 0) {
throw new Error('Unknown protocol byte in routing change event');
}
const port = routePacket.readUInt16LE(1);
const serverLen = routePacket.readUInt16LE(3); // 2 bytes per char, starting at offset 5
const server = routePacket.toString('ucs2', 5, 5 + serverLen * 2);
const newValue = {
protocol: protocol,
port: port,
server: server
};
parser.readUInt16LE(oldValueLength => {
parser.readBuffer(oldValueLength, oldValue => {
callback(new _token.RoutingEnvChangeToken(newValue, oldValue));
});
});
});
});
default:
console.error('Tedious > Unsupported ENVCHANGE type ' + type.name); // skip unknown bytes
parser.readBuffer(length - 1, () => {
callback(undefined);
});
}
}
function envChangeParser(parser, _options, callback) {
parser.readUInt16LE(length => {
parser.readUInt8(typeNumber => {
const type = types[typeNumber];
if (!type) {
console.error('Tedious > Unsupported ENVCHANGE type ' + typeNumber); // skip unknown bytes
return parser.readBuffer(length - 1, () => {
callback(undefined);
});
}
readNewAndOldValue(parser, length, type, token => {
callback(token);
});
});
});
}
var _default = envChangeParser;
exports.default = _default;
module.exports = envChangeParser;
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["types","name","event","readNewAndOldValue","parser","length","type","callback","readBVarChar","newValue","oldValue","PacketSizeEnvChangeToken","parseInt","DatabaseEnvChangeToken","LanguageEnvChangeToken","CharsetEnvChangeToken","DatabaseMirroringPartnerEnvChangeToken","readBVarByte","newCollation","Collation","fromBuffer","undefined","oldCollation","CollationChangeToken","BeginTransactionEnvChangeToken","CommitTransactionEnvChangeToken","RollbackTransactionEnvChangeToken","ResetConnectionEnvChangeToken","readUInt16LE","valueLength","readBuffer","routePacket","protocol","readUInt8","Error","port","serverLen","server","toString","oldValueLength","RoutingEnvChangeToken","console","error","envChangeParser","_options","typeNumber","token","module","exports"],"sources":["../../src/token/env-change-token-parser.ts"],"sourcesContent":["import Parser, { ParserOptions } from './stream-parser';\nimport { Collation } from '../collation';\n\nimport {\n  DatabaseEnvChangeToken,\n  LanguageEnvChangeToken,\n  CharsetEnvChangeToken,\n  PacketSizeEnvChangeToken,\n  BeginTransactionEnvChangeToken,\n  CommitTransactionEnvChangeToken,\n  RollbackTransactionEnvChangeToken,\n  DatabaseMirroringPartnerEnvChangeToken,\n  ResetConnectionEnvChangeToken,\n  RoutingEnvChangeToken,\n  CollationChangeToken\n} from './token';\n\ntype EnvChangeToken =\n  DatabaseEnvChangeToken |\n  LanguageEnvChangeToken |\n  CharsetEnvChangeToken |\n  PacketSizeEnvChangeToken |\n  BeginTransactionEnvChangeToken |\n  CommitTransactionEnvChangeToken |\n  RollbackTransactionEnvChangeToken |\n  DatabaseMirroringPartnerEnvChangeToken |\n  ResetConnectionEnvChangeToken |\n  RoutingEnvChangeToken |\n  CollationChangeToken;\n\nconst types: { [key: number]: { name: string, event?: string }} = {\n  1: {\n    name: 'DATABASE',\n    event: 'databaseChange'\n  },\n  2: {\n    name: 'LANGUAGE',\n    event: 'languageChange'\n  },\n  3: {\n    name: 'CHARSET',\n    event: 'charsetChange'\n  },\n  4: {\n    name: 'PACKET_SIZE',\n    event: 'packetSizeChange'\n  },\n  7: {\n    name: 'SQL_COLLATION',\n    event: 'sqlCollationChange'\n  },\n  8: {\n    name: 'BEGIN_TXN',\n    event: 'beginTransaction'\n  },\n  9: {\n    name: 'COMMIT_TXN',\n    event: 'commitTransaction'\n  },\n  10: {\n    name: 'ROLLBACK_TXN',\n    event: 'rollbackTransaction'\n  },\n  13: {\n    name: 'DATABASE_MIRRORING_PARTNER',\n    event: 'partnerNode'\n  },\n  17: {\n    name: 'TXN_ENDED'\n  },\n  18: {\n    name: 'RESET_CONNECTION',\n    event: 'resetConnection'\n  },\n  20: {\n    name: 'ROUTING_CHANGE',\n    event: 'routingChange'\n  }\n};\n\nfunction readNewAndOldValue(parser: Parser, length: number, type: { name: string, event?: string }, callback: (token: EnvChangeToken | undefined) => void) {\n  switch (type.name) {\n    case 'DATABASE':\n    case 'LANGUAGE':\n    case 'CHARSET':\n    case 'PACKET_SIZE':\n    case 'DATABASE_MIRRORING_PARTNER':\n      return parser.readBVarChar((newValue) => {\n        parser.readBVarChar((oldValue) => {\n          switch (type.name) {\n            case 'PACKET_SIZE':\n              return callback(new PacketSizeEnvChangeToken(parseInt(newValue), parseInt(oldValue)));\n\n            case 'DATABASE':\n              return callback(new DatabaseEnvChangeToken(newValue, oldValue));\n\n            case 'LANGUAGE':\n              return callback(new LanguageEnvChangeToken(newValue, oldValue));\n\n            case 'CHARSET':\n              return callback(new CharsetEnvChangeToken(newValue, oldValue));\n\n            case 'DATABASE_MIRRORING_PARTNER':\n              return callback(new DatabaseMirroringPartnerEnvChangeToken(newValue, oldValue));\n          }\n        });\n      });\n\n    case 'SQL_COLLATION':\n    case 'BEGIN_TXN':\n    case 'COMMIT_TXN':\n    case 'ROLLBACK_TXN':\n    case 'RESET_CONNECTION':\n      return parser.readBVarByte((newValue) => {\n        parser.readBVarByte((oldValue) => {\n          switch (type.name) {\n            case 'SQL_COLLATION': {\n              const newCollation = newValue.length ? Collation.fromBuffer(newValue) : undefined;\n              const oldCollation = oldValue.length ? Collation.fromBuffer(oldValue) : undefined;\n\n              return callback(new CollationChangeToken(newCollation, oldCollation));\n            }\n\n            case 'BEGIN_TXN':\n              return callback(new BeginTransactionEnvChangeToken(newValue, oldValue));\n\n            case 'COMMIT_TXN':\n              return callback(new CommitTransactionEnvChangeToken(newValue, oldValue));\n\n            case 'ROLLBACK_TXN':\n              return callback(new RollbackTransactionEnvChangeToken(newValue, oldValue));\n\n            case 'RESET_CONNECTION':\n              return callback(new ResetConnectionEnvChangeToken(newValue, oldValue));\n          }\n        });\n      });\n\n    case 'ROUTING_CHANGE':\n      return parser.readUInt16LE((valueLength) => {\n        // Routing Change:\n        // Byte 1: Protocol (must be 0)\n        // Bytes 2-3 (USHORT): Port number\n        // Bytes 4-5 (USHORT): Length of server data in unicode (2byte chars)\n        // Bytes 6-*: Server name in unicode characters\n        parser.readBuffer(valueLength, (routePacket) => {\n          const protocol = routePacket.readUInt8(0);\n\n          if (protocol !== 0) {\n            throw new Error('Unknown protocol byte in routing change event');\n          }\n\n          const port = routePacket.readUInt16LE(1);\n          const serverLen = routePacket.readUInt16LE(3);\n          // 2 bytes per char, starting at offset 5\n          const server = routePacket.toString('ucs2', 5, 5 + (serverLen * 2));\n\n          const newValue = {\n            protocol: protocol,\n            port: port,\n            server: server\n          };\n\n          parser.readUInt16LE((oldValueLength) => {\n            parser.readBuffer(oldValueLength, (oldValue) => {\n              callback(new RoutingEnvChangeToken(newValue, oldValue));\n            });\n          });\n        });\n      });\n\n    default:\n      console.error('Tedious > Unsupported ENVCHANGE type ' + type.name);\n      // skip unknown bytes\n      parser.readBuffer(length - 1, () => {\n        callback(undefined);\n      });\n  }\n}\n\nfunction envChangeParser(parser: Parser, _options: ParserOptions, callback: (token: EnvChangeToken | undefined) => void) {\n  parser.readUInt16LE((length) => {\n    parser.readUInt8((typeNumber) => {\n      const type = types[typeNumber];\n\n      if (!type) {\n        console.error('Tedious > Unsupported ENVCHANGE type ' + typeNumber);\n        // skip unknown bytes\n        return parser.readBuffer(length - 1, () => {\n          callback(undefined);\n        });\n      }\n\n      readNewAndOldValue(parser, length, type, (token) => {\n        callback(token);\n      });\n    });\n  });\n}\n\nexport default envChangeParser;\nmodule.exports = envChangeParser;\n"],"mappings":";;;;;;;AACA;;AAEA;;AA2BA,MAAMA,KAAyD,GAAG;EAChE,GAAG;IACDC,IAAI,EAAE,UADL;IAEDC,KAAK,EAAE;EAFN,CAD6D;EAKhE,GAAG;IACDD,IAAI,EAAE,UADL;IAEDC,KAAK,EAAE;EAFN,CAL6D;EAShE,GAAG;IACDD,IAAI,EAAE,SADL;IAEDC,KAAK,EAAE;EAFN,CAT6D;EAahE,GAAG;IACDD,IAAI,EAAE,aADL;IAEDC,KAAK,EAAE;EAFN,CAb6D;EAiBhE,GAAG;IACDD,IAAI,EAAE,eADL;IAEDC,KAAK,EAAE;EAFN,CAjB6D;EAqBhE,GAAG;IACDD,IAAI,EAAE,WADL;IAEDC,KAAK,EAAE;EAFN,CArB6D;EAyBhE,GAAG;IACDD,IAAI,EAAE,YADL;IAEDC,KAAK,EAAE;EAFN,CAzB6D;EA6BhE,IAAI;IACFD,IAAI,EAAE,cADJ;IAEFC,KAAK,EAAE;EAFL,CA7B4D;EAiChE,IAAI;IACFD,IAAI,EAAE,4BADJ;IAEFC,KAAK,EAAE;EAFL,CAjC4D;EAqChE,IAAI;IACFD,IAAI,EAAE;EADJ,CArC4D;EAwChE,IAAI;IACFA,IAAI,EAAE,kBADJ;IAEFC,KAAK,EAAE;EAFL,CAxC4D;EA4ChE,IAAI;IACFD,IAAI,EAAE,gBADJ;IAEFC,KAAK,EAAE;EAFL;AA5C4D,CAAlE;;AAkDA,SAASC,kBAAT,CAA4BC,MAA5B,EAA4CC,MAA5C,EAA4DC,IAA5D,EAAoGC,QAApG,EAA2J;EACzJ,QAAQD,IAAI,CAACL,IAAb;IACE,KAAK,UAAL;IACA,KAAK,UAAL;IACA,KAAK,SAAL;IACA,KAAK,aAAL;IACA,KAAK,4BAAL;MACE,OAAOG,MAAM,CAACI,YAAP,CAAqBC,QAAD,IAAc;QACvCL,MAAM,CAACI,YAAP,CAAqBE,QAAD,IAAc;UAChC,QAAQJ,IAAI,CAACL,IAAb;YACE,KAAK,aAAL;cACE,OAAOM,QAAQ,CAAC,IAAII,+BAAJ,CAA6BC,QAAQ,CAACH,QAAD,CAArC,EAAiDG,QAAQ,CAACF,QAAD,CAAzD,CAAD,CAAf;;YAEF,KAAK,UAAL;cACE,OAAOH,QAAQ,CAAC,IAAIM,6BAAJ,CAA2BJ,QAA3B,EAAqCC,QAArC,CAAD,CAAf;;YAEF,KAAK,UAAL;cACE,OAAOH,QAAQ,CAAC,IAAIO,6BAAJ,CAA2BL,QAA3B,EAAqCC,QAArC,CAAD,CAAf;;YAEF,KAAK,SAAL;cACE,OAAOH,QAAQ,CAAC,IAAIQ,4BAAJ,CAA0BN,QAA1B,EAAoCC,QAApC,CAAD,CAAf;;YAEF,KAAK,4BAAL;cACE,OAAOH,QAAQ,CAAC,IAAIS,6CAAJ,CAA2CP,QAA3C,EAAqDC,QAArD,CAAD,CAAf;UAdJ;QAgBD,CAjBD;MAkBD,CAnBM,CAAP;;IAqBF,KAAK,eAAL;IACA,KAAK,WAAL;IACA,KAAK,YAAL;IACA,KAAK,cAAL;IACA,KAAK,kBAAL;MACE,OAAON,MAAM,CAACa,YAAP,CAAqBR,QAAD,IAAc;QACvCL,MAAM,CAACa,YAAP,CAAqBP,QAAD,IAAc;UAChC,QAAQJ,IAAI,CAACL,IAAb;YACE,KAAK,eAAL;cAAsB;gBACpB,MAAMiB,YAAY,GAAGT,QAAQ,CAACJ,MAAT,GAAkBc,qBAAUC,UAAV,CAAqBX,QAArB,CAAlB,GAAmDY,SAAxE;gBACA,MAAMC,YAAY,GAAGZ,QAAQ,CAACL,MAAT,GAAkBc,qBAAUC,UAAV,CAAqBV,QAArB,CAAlB,GAAmDW,SAAxE;gBAEA,OAAOd,QAAQ,CAAC,IAAIgB,2BAAJ,CAAyBL,YAAzB,EAAuCI,YAAvC,CAAD,CAAf;cACD;;YAED,KAAK,WAAL;cACE,OAAOf,QAAQ,CAAC,IAAIiB,qCAAJ,CAAmCf,QAAnC,EAA6CC,QAA7C,CAAD,CAAf;;YAEF,KAAK,YAAL;cACE,OAAOH,QAAQ,CAAC,IAAIkB,sCAAJ,CAAoChB,QAApC,EAA8CC,QAA9C,CAAD,CAAf;;YAEF,KAAK,cAAL;cACE,OAAOH,QAAQ,CAAC,IAAImB,wCAAJ,CAAsCjB,QAAtC,EAAgDC,QAAhD,CAAD,CAAf;;YAEF,KAAK,kBAAL;cACE,OAAOH,QAAQ,CAAC,IAAIoB,oCAAJ,CAAkClB,QAAlC,EAA4CC,QAA5C,CAAD,CAAf;UAlBJ;QAoBD,CArBD;MAsBD,CAvBM,CAAP;;IAyBF,KAAK,gBAAL;MACE,OAAON,MAAM,CAACwB,YAAP,CAAqBC,WAAD,IAAiB;QAC1C;QACA;QACA;QACA;QACA;QACAzB,MAAM,CAAC0B,UAAP,CAAkBD,WAAlB,EAAgCE,WAAD,IAAiB;UAC9C,MAAMC,QAAQ,GAAGD,WAAW,CAACE,SAAZ,CAAsB,CAAtB,CAAjB;;UAEA,IAAID,QAAQ,KAAK,CAAjB,EAAoB;YAClB,MAAM,IAAIE,KAAJ,CAAU,+CAAV,CAAN;UACD;;UAED,MAAMC,IAAI,GAAGJ,WAAW,CAACH,YAAZ,CAAyB,CAAzB,CAAb;UACA,MAAMQ,SAAS,GAAGL,WAAW,CAACH,YAAZ,CAAyB,CAAzB,CAAlB,CAR8C,CAS9C;;UACA,MAAMS,MAAM,GAAGN,WAAW,CAACO,QAAZ,CAAqB,MAArB,EAA6B,CAA7B,EAAgC,IAAKF,SAAS,GAAG,CAAjD,CAAf;UAEA,MAAM3B,QAAQ,GAAG;YACfuB,QAAQ,EAAEA,QADK;YAEfG,IAAI,EAAEA,IAFS;YAGfE,MAAM,EAAEA;UAHO,CAAjB;UAMAjC,MAAM,CAACwB,YAAP,CAAqBW,cAAD,IAAoB;YACtCnC,MAAM,CAAC0B,UAAP,CAAkBS,cAAlB,EAAmC7B,QAAD,IAAc;cAC9CH,QAAQ,CAAC,IAAIiC,4BAAJ,CAA0B/B,QAA1B,EAAoCC,QAApC,CAAD,CAAR;YACD,CAFD;UAGD,CAJD;QAKD,CAvBD;MAwBD,CA9BM,CAAP;;IAgCF;MACE+B,OAAO,CAACC,KAAR,CAAc,0CAA0CpC,IAAI,CAACL,IAA7D,EADF,CAEE;;MACAG,MAAM,CAAC0B,UAAP,CAAkBzB,MAAM,GAAG,CAA3B,EAA8B,MAAM;QAClCE,QAAQ,CAACc,SAAD,CAAR;MACD,CAFD;EA7FJ;AAiGD;;AAED,SAASsB,eAAT,CAAyBvC,MAAzB,EAAyCwC,QAAzC,EAAkErC,QAAlE,EAAyH;EACvHH,MAAM,CAACwB,YAAP,CAAqBvB,MAAD,IAAY;IAC9BD,MAAM,CAAC6B,SAAP,CAAkBY,UAAD,IAAgB;MAC/B,MAAMvC,IAAI,GAAGN,KAAK,CAAC6C,UAAD,CAAlB;;MAEA,IAAI,CAACvC,IAAL,EAAW;QACTmC,OAAO,CAACC,KAAR,CAAc,0CAA0CG,UAAxD,EADS,CAET;;QACA,OAAOzC,MAAM,CAAC0B,UAAP,CAAkBzB,MAAM,GAAG,CAA3B,EAA8B,MAAM;UACzCE,QAAQ,CAACc,SAAD,CAAR;QACD,CAFM,CAAP;MAGD;;MAEDlB,kBAAkB,CAACC,MAAD,EAASC,MAAT,EAAiBC,IAAjB,EAAwBwC,KAAD,IAAW;QAClDvC,QAAQ,CAACuC,KAAD,CAAR;MACD,CAFiB,CAAlB;IAGD,CAdD;EAeD,CAhBD;AAiBD;;eAEcH,e;;AACfI,MAAM,CAACC,OAAP,GAAiBL,eAAjB"}