55 lines
2.0 KiB
JavaScript
55 lines
2.0 KiB
JavaScript
var Buffer = require('safe-buffer').Buffer;
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module.exports = ClientAuthenticationPacket;
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function ClientAuthenticationPacket(options) {
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options = options || {};
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this.clientFlags = options.clientFlags;
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this.maxPacketSize = options.maxPacketSize;
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this.charsetNumber = options.charsetNumber;
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this.filler = undefined;
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this.user = options.user;
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this.scrambleBuff = options.scrambleBuff;
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this.database = options.database;
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this.protocol41 = options.protocol41;
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}
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ClientAuthenticationPacket.prototype.parse = function(parser) {
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if (this.protocol41) {
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this.clientFlags = parser.parseUnsignedNumber(4);
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this.maxPacketSize = parser.parseUnsignedNumber(4);
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this.charsetNumber = parser.parseUnsignedNumber(1);
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this.filler = parser.parseFiller(23);
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this.user = parser.parseNullTerminatedString();
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this.scrambleBuff = parser.parseLengthCodedBuffer();
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this.database = parser.parseNullTerminatedString();
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} else {
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this.clientFlags = parser.parseUnsignedNumber(2);
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this.maxPacketSize = parser.parseUnsignedNumber(3);
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this.user = parser.parseNullTerminatedString();
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this.scrambleBuff = parser.parseBuffer(8);
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this.database = parser.parseLengthCodedBuffer();
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}
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};
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ClientAuthenticationPacket.prototype.write = function(writer) {
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if (this.protocol41) {
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writer.writeUnsignedNumber(4, this.clientFlags);
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writer.writeUnsignedNumber(4, this.maxPacketSize);
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writer.writeUnsignedNumber(1, this.charsetNumber);
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writer.writeFiller(23);
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writer.writeNullTerminatedString(this.user);
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writer.writeLengthCodedBuffer(this.scrambleBuff);
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writer.writeNullTerminatedString(this.database);
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} else {
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writer.writeUnsignedNumber(2, this.clientFlags);
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writer.writeUnsignedNumber(3, this.maxPacketSize);
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writer.writeNullTerminatedString(this.user);
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writer.writeBuffer(this.scrambleBuff);
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if (this.database && this.database.length) {
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writer.writeFiller(1);
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writer.writeBuffer(Buffer.from(this.database));
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}
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}
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};
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