Elep

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.Agent = void 0;
const net = __importStar(require("net"));
const http = __importStar(require("http"));
const https_1 = require("https");
__exportStar(require("./helpers"), exports);
const INTERNAL = Symbol('AgentBaseInternalState');
class Agent extends http.Agent {
    constructor(opts) {
        super(opts);
        this[INTERNAL] = {};
    }
    /**
     * Determine whether this is an `http` or `https` request.
     */
    isSecureEndpoint(options) {
        if (options) {
            // First check the `secureEndpoint` property explicitly, since this
            // means that a parent `Agent` is "passing through" to this instance.
            // eslint-disable-next-line @typescript-eslint/no-explicit-any
            if (typeof options.secureEndpoint === 'boolean') {
                return options.secureEndpoint;
            }
            // If no explicit `secure` endpoint, check if `protocol` property is
            // set. This will usually be the case since using a full string URL
            // or `URL` instance should be the most common usage.
            if (typeof options.protocol === 'string') {
                return options.protocol === 'https:';
            }
        }
        // Finally, if no `protocol` property was set, then fall back to
        // checking the stack trace of the current call stack, and try to
        // detect the "https" module.
        const { stack } = new Error();
        if (typeof stack !== 'string')
            return false;
        return stack
            .split('\n')
            .some((l) => l.indexOf('(https.js:') !== -1 ||
            l.indexOf('node:https:') !== -1);
    }
    // In order to support async signatures in `connect()` and Node's native
    // connection pooling in `http.Agent`, the array of sockets for each origin
    // has to be updated synchronously. This is so the length of the array is
    // accurate when `addRequest()` is next called. We achieve this by creating a
    // fake socket and adding it to `sockets[origin]` and incrementing
    // `totalSocketCount`.
    incrementSockets(name) {
        // If `maxSockets` and `maxTotalSockets` are both Infinity then there is no
        // need to create a fake socket because Node.js native connection pooling
        // will never be invoked.
        if (this.maxSockets === Infinity && this.maxTotalSockets === Infinity) {
            return null;
        }
        // All instances of `sockets` are expected TypeScript errors. The
        // alternative is to add it as a private property of this class but that
        // will break TypeScript subclassing.
        if (!this.sockets[name]) {
            // @ts-expect-error `sockets` is readonly in `@types/node`
            this.sockets[name] = [];
        }
        const fakeSocket = new net.Socket({ writable: false });
        this.sockets[name].push(fakeSocket);
        // @ts-expect-error `totalSocketCount` isn't defined in `@types/node`
        this.totalSocketCount++;
        return fakeSocket;
    }
    decrementSockets(name, socket) {
        if (!this.sockets[name] || socket === null) {
            return;
        }
        const sockets = this.sockets[name];
        const index = sockets.indexOf(socket);
        if (index !== -1) {
            sockets.splice(index, 1);
            // @ts-expect-error  `totalSocketCount` isn't defined in `@types/node`
            this.totalSocketCount--;
            if (sockets.length === 0) {
                // @ts-expect-error `sockets` is readonly in `@types/node`
                delete this.sockets[name];
            }
        }
    }
    // In order to properly update the socket pool, we need to call `getName()` on
    // the core `https.Agent` if it is a secureEndpoint.
    getName(options) {
        const secureEndpoint = typeof options.secureEndpoint === 'boolean'
            ? options.secureEndpoint
            : this.isSecureEndpoint(options);
        if (secureEndpoint) {
            // @ts-expect-error `getName()` isn't defined in `@types/node`
            return https_1.Agent.prototype.getName.call(this, options);
        }
        // @ts-expect-error `getName()` isn't defined in `@types/node`
        return super.getName(options);
    }
    createSocket(req, options, cb) {
        const connectOpts = {
            ...options,
            secureEndpoint: this.isSecureEndpoint(options),
        };
        const name = this.getName(connectOpts);
        const fakeSocket = this.incrementSockets(name);
        Promise.resolve()
            .then(() => this.connect(req, connectOpts))
            .then((socket) => {
            this.decrementSockets(name, fakeSocket);
            if (socket instanceof http.Agent) {
                // @ts-expect-error `addRequest()` isn't defined in `@types/node`
                return socket.addRequest(req, connectOpts);
            }
            this[INTERNAL].currentSocket = socket;
            // @ts-expect-error `createSocket()` isn't defined in `@types/node`
            super.createSocket(req, options, cb);
        }, (err) => {
            this.decrementSockets(name, fakeSocket);
            cb(err);
        });
    }
    createConnection() {
        const socket = this[INTERNAL].currentSocket;
        this[INTERNAL].currentSocket = undefined;
        if (!socket) {
            throw new Error('No socket was returned in the `connect()` function');
        }
        return socket;
    }
    get defaultPort() {
        return (this[INTERNAL].defaultPort ??
            (this.protocol === 'https:' ? 443 : 80));
    }
    set defaultPort(v) {
        if (this[INTERNAL]) {
            this[INTERNAL].defaultPort = v;
        }
    }
    get protocol() {
        return (this[INTERNAL].protocol ??
            (this.isSecureEndpoint() ? 'https:' : 'http:'));
    }
    set protocol(v) {
        if (this[INTERNAL]) {
            this[INTERNAL].protocol = v;
        }
    }
}
exports.Agent = Agent;
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