191 lines
22 KiB
JavaScript
191 lines
22 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.TYPE = exports.Packet = exports.OFFSET = exports.HEADER_LENGTH = void 0;
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exports.isPacketComplete = isPacketComplete;
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exports.packetLength = packetLength;
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var _sprintfJs = require("sprintf-js");
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const HEADER_LENGTH = exports.HEADER_LENGTH = 8;
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const TYPE = exports.TYPE = {
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SQL_BATCH: 0x01,
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RPC_REQUEST: 0x03,
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TABULAR_RESULT: 0x04,
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ATTENTION: 0x06,
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BULK_LOAD: 0x07,
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TRANSACTION_MANAGER: 0x0E,
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LOGIN7: 0x10,
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NTLMAUTH_PKT: 0x11,
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PRELOGIN: 0x12,
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FEDAUTH_TOKEN: 0x08
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};
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const typeByValue = {};
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for (const name in TYPE) {
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typeByValue[TYPE[name]] = name;
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}
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const STATUS = {
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NORMAL: 0x00,
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EOM: 0x01,
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IGNORE: 0x02,
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RESETCONNECTION: 0x08,
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RESETCONNECTIONSKIPTRAN: 0x10
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};
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const OFFSET = exports.OFFSET = {
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Type: 0,
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Status: 1,
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Length: 2,
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SPID: 4,
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PacketID: 6,
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Window: 7
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};
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const DEFAULT_SPID = 0;
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const DEFAULT_PACKETID = 1;
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const DEFAULT_WINDOW = 0;
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const NL = '\n';
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class Packet {
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constructor(typeOrBuffer) {
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if (typeOrBuffer instanceof Buffer) {
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this.buffer = typeOrBuffer;
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} else {
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const type = typeOrBuffer;
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this.buffer = Buffer.alloc(HEADER_LENGTH, 0);
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this.buffer.writeUInt8(type, OFFSET.Type);
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this.buffer.writeUInt8(STATUS.NORMAL, OFFSET.Status);
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this.buffer.writeUInt16BE(DEFAULT_SPID, OFFSET.SPID);
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this.buffer.writeUInt8(DEFAULT_PACKETID, OFFSET.PacketID);
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this.buffer.writeUInt8(DEFAULT_WINDOW, OFFSET.Window);
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this.setLength();
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}
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}
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setLength() {
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this.buffer.writeUInt16BE(this.buffer.length, OFFSET.Length);
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}
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length() {
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return this.buffer.readUInt16BE(OFFSET.Length);
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}
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resetConnection(reset) {
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let status = this.buffer.readUInt8(OFFSET.Status);
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if (reset) {
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status |= STATUS.RESETCONNECTION;
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} else {
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status &= 0xFF - STATUS.RESETCONNECTION;
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}
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this.buffer.writeUInt8(status, OFFSET.Status);
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}
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last(last) {
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let status = this.buffer.readUInt8(OFFSET.Status);
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if (arguments.length > 0) {
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if (last) {
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status |= STATUS.EOM;
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} else {
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status &= 0xFF - STATUS.EOM;
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}
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this.buffer.writeUInt8(status, OFFSET.Status);
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}
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return this.isLast();
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}
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ignore(last) {
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let status = this.buffer.readUInt8(OFFSET.Status);
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if (last) {
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status |= STATUS.IGNORE;
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} else {
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status &= 0xFF - STATUS.IGNORE;
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}
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this.buffer.writeUInt8(status, OFFSET.Status);
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}
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isLast() {
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return !!(this.buffer.readUInt8(OFFSET.Status) & STATUS.EOM);
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}
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packetId(packetId) {
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if (packetId) {
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this.buffer.writeUInt8(packetId % 256, OFFSET.PacketID);
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}
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return this.buffer.readUInt8(OFFSET.PacketID);
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}
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addData(data) {
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this.buffer = Buffer.concat([this.buffer, data]);
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this.setLength();
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return this;
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}
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data() {
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return this.buffer.slice(HEADER_LENGTH);
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}
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type() {
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return this.buffer.readUInt8(OFFSET.Type);
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}
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statusAsString() {
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const status = this.buffer.readUInt8(OFFSET.Status);
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const statuses = [];
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for (const name in STATUS) {
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const value = STATUS[name];
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if (status & value) {
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statuses.push(name);
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} else {
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statuses.push(undefined);
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}
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}
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return statuses.join(' ').trim();
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}
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headerToString(indent = '') {
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const text = (0, _sprintfJs.sprintf)('type:0x%02X(%s), status:0x%02X(%s), length:0x%04X, spid:0x%04X, packetId:0x%02X, window:0x%02X', this.buffer.readUInt8(OFFSET.Type), typeByValue[this.buffer.readUInt8(OFFSET.Type)], this.buffer.readUInt8(OFFSET.Status), this.statusAsString(), this.buffer.readUInt16BE(OFFSET.Length), this.buffer.readUInt16BE(OFFSET.SPID), this.buffer.readUInt8(OFFSET.PacketID), this.buffer.readUInt8(OFFSET.Window));
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return indent + text;
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}
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dataToString(indent = '') {
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const BYTES_PER_GROUP = 0x04;
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const CHARS_PER_GROUP = 0x08;
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const BYTES_PER_LINE = 0x20;
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const data = this.data();
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let dataDump = '';
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let chars = '';
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for (let offset = 0; offset < data.length; offset++) {
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if (offset % BYTES_PER_LINE === 0) {
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dataDump += indent;
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dataDump += (0, _sprintfJs.sprintf)('%04X ', offset);
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}
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if (data[offset] < 0x20 || data[offset] > 0x7E) {
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chars += '.';
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if ((offset + 1) % CHARS_PER_GROUP === 0 && !((offset + 1) % BYTES_PER_LINE === 0)) {
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chars += ' ';
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}
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} else {
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chars += String.fromCharCode(data[offset]);
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}
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if (data[offset] != null) {
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dataDump += (0, _sprintfJs.sprintf)('%02X', data[offset]);
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}
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if ((offset + 1) % BYTES_PER_GROUP === 0 && !((offset + 1) % BYTES_PER_LINE === 0)) {
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dataDump += ' ';
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}
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if ((offset + 1) % BYTES_PER_LINE === 0) {
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dataDump += ' ' + chars;
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chars = '';
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if (offset < data.length - 1) {
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dataDump += NL;
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}
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}
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}
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if (chars.length) {
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dataDump += ' ' + chars;
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}
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return dataDump;
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}
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toString(indent = '') {
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return this.headerToString(indent) + '\n' + this.dataToString(indent + indent);
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}
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payloadString() {
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return '';
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}
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}
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exports.Packet = Packet;
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function isPacketComplete(potentialPacketBuffer) {
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if (potentialPacketBuffer.length < HEADER_LENGTH) {
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return false;
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} else {
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return potentialPacketBuffer.length >= potentialPacketBuffer.readUInt16BE(OFFSET.Length);
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}
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}
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function packetLength(potentialPacketBuffer) {
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return potentialPacketBuffer.readUInt16BE(OFFSET.Length);
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}
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//# sourceMappingURL=data:application/json;charset=utf-8;base64,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