urllib
Version:
Help in opening URLs (mostly HTTP) in a complex world — basic and digest authentication, redirections, timeout and more. Base undici API.
229 lines • 23.3 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.initDiagnosticsChannel = initDiagnosticsChannel;
const node_diagnostics_channel_1 = __importDefault(require("node:diagnostics_channel"));
const node_perf_hooks_1 = require("node:perf_hooks");
const node_util_1 = require("node:util");
const node_net_1 = require("node:net");
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore
const symbols_js_1 = __importDefault(require("./symbols.js"));
const utils_js_1 = require("./utils.js");
const debug = (0, node_util_1.debuglog)('urllib/diagnosticsChannel');
let initedDiagnosticsChannel = false;
// https://undici.nodejs.org/#/docs/api/DiagnosticsChannel
// client --> server
// undici:request:create => { request }
// -> [optional] undici:client:connected => { socket } [first request will create socket]
// -> undici:client:sendHeaders => { socket, request }
// -> undici:request:bodySent => { request }
//
// server --> client
// undici:request:headers => { request, response }
// -> undici:request:trailers => { request, trailers }
function subscribe(name, listener) {
node_diagnostics_channel_1.default.subscribe(name, listener);
}
let kSocketReset;
function formatSocket(socket) {
if (!socket)
return socket;
if (!kSocketReset) {
const symbols = Object.getOwnPropertySymbols(socket);
for (const symbol of symbols) {
if (symbol.description === 'reset') {
kSocketReset = symbol;
break;
}
}
}
return {
localAddress: socket[symbols_js_1.default.kSocketLocalAddress],
localPort: socket[symbols_js_1.default.kSocketLocalPort],
remoteAddress: socket.remoteAddress,
remotePort: socket.remotePort,
attemptedAddresses: socket.autoSelectFamilyAttemptedAddresses,
connecting: socket.connecting,
reset: socket[kSocketReset],
};
}
// make sure error contains socket info
const destroySocket = node_net_1.Socket.prototype.destroy;
node_net_1.Socket.prototype.destroy = function (err) {
if (err) {
Object.defineProperty(err, symbols_js_1.default.kErrorSocket, {
// don't show on console log
enumerable: false,
value: this,
});
}
return destroySocket.call(this, err);
};
function getRequestOpaque(request, kHandler) {
if (!kHandler)
return;
const handler = Reflect.get(request, kHandler);
// maxRedirects = 0 will get [Symbol(handler)]: RequestHandler {
// responseHeaders: null,
// opaque: {
// [Symbol(request id)]: 1,
// [Symbol(request start time)]: 465.0712921619415,
// [Symbol(enable request timing or not)]: true,
// [Symbol(request timing)]: [Object],
// [Symbol(request original opaque)]: undefined
// }
return handler?.opts?.opaque ?? handler?.opaque;
}
function initDiagnosticsChannel() {
// make sure init global DiagnosticsChannel once
if (initedDiagnosticsChannel)
return;
initedDiagnosticsChannel = true;
let kHandler;
// This message is published when a new outgoing request is created.
// Note: a request is only loosely completed to a given socket.
subscribe('undici:request:create', (message, name) => {
const { request } = message;
if (!kHandler) {
const symbols = Object.getOwnPropertySymbols(request);
for (const symbol of symbols) {
if (symbol.description === 'handler') {
kHandler = symbol;
break;
}
}
}
const opaque = getRequestOpaque(request, kHandler);
// ignore non HttpClient Request
if (!opaque || !opaque[symbols_js_1.default.kRequestId])
return;
Reflect.set(request, symbols_js_1.default.kRequestInternalOpaque, opaque);
debug('[%s] Request#%d %s %s, path: %s, headers: %j', name, opaque[symbols_js_1.default.kRequestId], request.method, request.origin, request.path, request.headers);
if (!opaque[symbols_js_1.default.kEnableRequestTiming])
return;
opaque[symbols_js_1.default.kRequestTiming].queuing = (0, utils_js_1.performanceTime)(opaque[symbols_js_1.default.kRequestStartTime]);
});
subscribe('undici:client:connectError', (message, name) => {
const { error, connectParams, socket } = message;
let sock = socket;
if (!sock && error[symbols_js_1.default.kErrorSocket]) {
sock = error[symbols_js_1.default.kErrorSocket];
}
if (sock) {
sock[symbols_js_1.default.kSocketId] = (0, utils_js_1.globalId)('UndiciSocket');
sock[symbols_js_1.default.kSocketConnectErrorTime] = new Date();
sock[symbols_js_1.default.kHandledRequests] = 0;
sock[symbols_js_1.default.kHandledResponses] = 0;
// copy local address to symbol, avoid them be reset after request error throw
if (sock.localAddress) {
sock[symbols_js_1.default.kSocketLocalAddress] = sock.localAddress;
sock[symbols_js_1.default.kSocketLocalPort] = sock.localPort;
}
sock[symbols_js_1.default.kSocketConnectProtocol] = connectParams.protocol;
sock[symbols_js_1.default.kSocketConnectHost] = connectParams.host;
sock[symbols_js_1.default.kSocketConnectPort] = connectParams.port;
debug('[%s] Socket#%d connectError, connectParams: %j, error: %s, (sock: %j)', name, sock[symbols_js_1.default.kSocketId], connectParams, error.message, formatSocket(sock));
}
else {
debug('[%s] connectError, connectParams: %j, error: %o', name, connectParams, error);
}
});
// This message is published after a connection is established.
subscribe('undici:client:connected', (message, name) => {
const { socket, connectParams } = message;
socket[symbols_js_1.default.kSocketId] = (0, utils_js_1.globalId)('UndiciSocket');
socket[symbols_js_1.default.kSocketStartTime] = node_perf_hooks_1.performance.now();
socket[symbols_js_1.default.kSocketConnectedTime] = new Date();
socket[symbols_js_1.default.kHandledRequests] = 0;
socket[symbols_js_1.default.kHandledResponses] = 0;
// copy local address to symbol, avoid them be reset after request error throw
socket[symbols_js_1.default.kSocketLocalAddress] = socket.localAddress;
socket[symbols_js_1.default.kSocketLocalPort] = socket.localPort;
socket[symbols_js_1.default.kSocketConnectProtocol] = connectParams.protocol;
socket[symbols_js_1.default.kSocketConnectHost] = connectParams.host;
socket[symbols_js_1.default.kSocketConnectPort] = connectParams.port;
debug('[%s] Socket#%d connected (sock: %j)', name, socket[symbols_js_1.default.kSocketId], formatSocket(socket));
});
// This message is published right before the first byte of the request is written to the socket.
subscribe('undici:client:sendHeaders', (message, name) => {
const { request, socket } = message;
const opaque = Reflect.get(request, symbols_js_1.default.kRequestInternalOpaque);
if (!opaque || !opaque[symbols_js_1.default.kRequestId]) {
debug('[%s] opaque not found', name);
return;
}
socket[symbols_js_1.default.kHandledRequests]++;
// attach socket to opaque
opaque[symbols_js_1.default.kRequestSocket] = socket;
debug('[%s] Request#%d send headers on Socket#%d (handled %d requests, sock: %j)', name, opaque[symbols_js_1.default.kRequestId], socket[symbols_js_1.default.kSocketId], socket[symbols_js_1.default.kHandledRequests], formatSocket(socket));
if (!opaque[symbols_js_1.default.kEnableRequestTiming])
return;
opaque[symbols_js_1.default.kRequestTiming].requestHeadersSent = (0, utils_js_1.performanceTime)(opaque[symbols_js_1.default.kRequestStartTime]);
// first socket need to calculate the connected time
if (socket[symbols_js_1.default.kHandledRequests] === 1) {
// kSocketStartTime - kRequestStartTime = connected time
opaque[symbols_js_1.default.kRequestTiming].connected =
(0, utils_js_1.performanceTime)(opaque[symbols_js_1.default.kRequestStartTime], socket[symbols_js_1.default.kSocketStartTime]);
}
});
subscribe('undici:request:bodySent', (message, name) => {
const { request } = message;
const opaque = Reflect.get(request, symbols_js_1.default.kRequestInternalOpaque);
if (!opaque || !opaque[symbols_js_1.default.kRequestId]) {
debug('[%s] opaque not found', name);
return;
}
debug('[%s] Request#%d send body', name, opaque[symbols_js_1.default.kRequestId]);
if (!opaque[symbols_js_1.default.kEnableRequestTiming])
return;
opaque[symbols_js_1.default.kRequestTiming].requestSent = (0, utils_js_1.performanceTime)(opaque[symbols_js_1.default.kRequestStartTime]);
});
// This message is published after the response headers have been received, i.e. the response has been completed.
subscribe('undici:request:headers', (message, name) => {
const { request, response } = message;
const opaque = Reflect.get(request, symbols_js_1.default.kRequestInternalOpaque);
if (!opaque || !opaque[symbols_js_1.default.kRequestId]) {
debug('[%s] opaque not found', name);
return;
}
// get socket from opaque
const socket = opaque[symbols_js_1.default.kRequestSocket];
if (socket) {
socket[symbols_js_1.default.kHandledResponses]++;
debug('[%s] Request#%d get %s response headers on Socket#%d (handled %d responses, sock: %j)', name, opaque[symbols_js_1.default.kRequestId], response.statusCode, socket[symbols_js_1.default.kSocketId], socket[symbols_js_1.default.kHandledResponses], formatSocket(socket));
}
else {
debug('[%s] Request#%d get %s response headers on Unknown Socket', name, opaque[symbols_js_1.default.kRequestId], response.statusCode);
}
if (!opaque[symbols_js_1.default.kEnableRequestTiming])
return;
opaque[symbols_js_1.default.kRequestTiming].waiting = (0, utils_js_1.performanceTime)(opaque[symbols_js_1.default.kRequestStartTime]);
});
// This message is published after the response body and trailers have been received, i.e. the response has been completed.
subscribe('undici:request:trailers', (message, name) => {
const { request } = message;
const opaque = Reflect.get(request, symbols_js_1.default.kRequestInternalOpaque);
if (!opaque || !opaque[symbols_js_1.default.kRequestId]) {
debug('[%s] opaque not found', name);
return;
}
debug('[%s] Request#%d get response body and trailers', name, opaque[symbols_js_1.default.kRequestId]);
if (!opaque[symbols_js_1.default.kEnableRequestTiming])
return;
opaque[symbols_js_1.default.kRequestTiming].contentDownload = (0, utils_js_1.performanceTime)(opaque[symbols_js_1.default.kRequestStartTime]);
});
// This message is published if the request is going to error, but it has not errored yet.
// subscribe('undici:request:error', (message, name) => {
// const { request, error } = message as DiagnosticsChannel.RequestErrorMessage;
// const opaque = request[kHandler]?.opts?.opaque;
// if (!opaque || !opaque[symbols.kRequestId]) return;
// const socket = opaque[symbols.kRequestSocket];
// debug('[%s] Request#%d error on Socket#%d (handled %d responses, sock: %o), error: %o',
// name, opaque[symbols.kRequestId], socket[symbols.kSocketId], socket[symbols.kHandledResponses],
// formatSocket(socket), error);
// });
}
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