@jonaskello-forks/amqp-client
Version:
AMQP 0-9-1 client, both for browsers (WebSocket) and node (TCP Socket)
130 lines • 5.91 kB
JavaScript
"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.AMQPClient = void 0;
const amqp_base_client_js_1 = require("./amqp-base-client.js");
const amqp_error_js_1 = require("./amqp-error.js");
const amqp_view_js_1 = require("./amqp-view.js");
const buffer_1 = require("buffer");
const net = __importStar(require("net"));
const tls = __importStar(require("tls"));
class AMQPClient extends amqp_base_client_js_1.AMQPBaseClient {
constructor(url) {
const u = new URL(url);
const vhost = decodeURIComponent(u.pathname.slice(1)) || "/";
const username = u.username || "guest";
const password = u.password || "guest";
const name = u.searchParams.get("name") || "";
const frameMax = parseInt(u.searchParams.get("frameMax") || "4096");
const heartbeat = parseInt(u.searchParams.get("heartbeat") || "0");
const platform = `${process.release.name} ${process.version} ${process.platform} ${process.arch}`;
super(vhost, username, password, name, platform, frameMax, heartbeat);
this.tls = u.protocol === "amqps:";
this.host = u.hostname || "localhost";
this.port = parseInt(u.port) || (this.tls ? 5671 : 5672);
this.insecure = u.searchParams.get("insecure") !== undefined;
this.framePos = 0;
this.frameSize = 0;
this.frameBuffer = buffer_1.Buffer.allocUnsafe(frameMax);
}
connect() {
const socket = this.connectSocket();
Object.defineProperty(this, 'socket', {
value: socket,
enumerable: false
});
return new Promise((resolve, reject) => {
socket.on('error', (err) => reject(new amqp_error_js_1.AMQPError(err.message, this)));
this.connectPromise = [resolve, reject];
});
}
connectSocket() {
const options = {
host: this.host,
port: this.port,
servername: this.host,
rejectUnauthorized: !this.insecure
};
const sendStart = () => this.send(new Uint8Array([65, 77, 81, 80, 0, 0, 9, 1]));
const conn = this.tls ? tls.connect(options, sendStart) : net.connect(options, sendStart);
conn.on('data', this.onRead.bind(this));
return conn;
}
onRead(buf) {
const bufLen = buf.length;
let bufPos = 0;
while (bufPos < bufLen) {
if (this.frameSize === 0) {
if (this.framePos !== 0) {
const copied = buf.copy(this.frameBuffer, this.framePos, bufPos, bufPos + 7 - this.framePos);
if (copied === 0)
throw `Copied 0 bytes framePos=${this.framePos} bufPos=${bufPos} bytesWritten=${bufLen}`;
this.frameSize = this.frameBuffer.readInt32BE(bufPos + 3) + 8;
this.framePos += copied;
bufPos += copied;
continue;
}
if (bufPos + 3 + 4 > bufLen) {
const copied = buf.copy(this.frameBuffer, this.framePos, bufPos, bufLen);
if (copied === 0)
throw `Copied 0 bytes framePos=${this.framePos} bufPos=${bufPos} bytesWritten=${bufLen}`;
this.framePos += copied;
break;
}
this.frameSize = buf.readInt32BE(bufPos + 3) + 8;
if (bufLen - bufPos >= this.frameSize) {
const view = new amqp_view_js_1.AMQPView(buf.buffer, buf.byteOffset + bufPos, this.frameSize);
this.parseFrames(view);
bufPos += this.frameSize;
this.frameSize = 0;
continue;
}
}
const leftOfFrame = this.frameSize - this.framePos;
const copyBytes = Math.min(leftOfFrame, bufLen - bufPos);
const copied = buf.copy(this.frameBuffer, this.framePos, bufPos, bufPos + copyBytes);
if (copied === 0)
throw `Copied 0 bytes, please report this bug, frameSize=${this.frameSize} framePos=${this.framePos} bufPos=${bufPos} copyBytes=${copyBytes} bytesWritten=${bufLen}`;
this.framePos += copied;
bufPos += copied;
if (this.framePos === this.frameSize) {
const view = new amqp_view_js_1.AMQPView(this.frameBuffer.buffer, 0, this.frameSize);
this.parseFrames(view);
this.frameSize = this.framePos = 0;
}
}
return true;
}
send(bytes) {
return new Promise((resolve, reject) => {
if (this.socket)
this.socket.write(bytes, undefined, (err) => err ? reject(err) : resolve());
else
reject(new amqp_error_js_1.AMQPError("Socket not connected", this));
});
}
closeSocket() {
if (this.socket)
this.socket.end();
}
}
exports.AMQPClient = AMQPClient;
//# sourceMappingURL=amqp-socket-client.js.map