@multiplayer-app/otlp-core
Version:
Multiplayer otlp core
227 lines • 13.1 kB
JavaScript
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
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return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
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if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
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default:
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var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
import * as zlib from 'zlib';
import { ATTR_MULTIPLAYER_HTTP_REQUEST_BODY, ATTR_MULTIPLAYER_HTTP_REQUEST_HEADERS, ATTR_MULTIPLAYER_HTTP_RESPONSE_BODY, ATTR_MULTIPLAYER_HTTP_RESPONSE_HEADERS, MULTIPLAYER_MAX_HTTP_REQUEST_RESPONSE_SIZE, ATTR_MULTIPLAYER_HTTP_RESPONSE_BODY_ENCODING, MULTIPLAYER_TRACE_DEBUG_PREFIX, } from './constants.node';
import { mask, schemify, isGzip, maskHeaders } from './helpers';
export var MultiplayerHttpInstrumentationHooksNode = {
responseHook: function (options) {
if (options === void 0) { options = {}; }
return function (span, response) {
try {
options = __assign({ maskDebSpanPayload: true, schemifyDocSpanPayload: true }, options);
var _response_1 = response;
var traceId_1 = span.spanContext().traceId;
if (_response_1.setHeader) {
_response_1.setHeader('X-Trace-Id', traceId_1);
}
var _a = __read([_response_1.write, _response_1.end], 2), oldWrite_1 = _a[0], oldEnd_1 = _a[1];
var chunks_1 = [];
_response_1.write = function () {
var restArgs = [];
for (var _i = 0; _i < arguments.length; _i++) {
restArgs[_i] = arguments[_i];
}
chunks_1.push(Buffer.from(restArgs[0]));
// eslint-disable-next-line
// @ts-ignore
oldWrite_1.apply(_response_1, restArgs);
};
// eslint-disable-next-line
// @ts-ignore
_response_1.end = function () {
var restArgs = [];
for (var _i = 0; _i < arguments.length; _i++) {
restArgs[_i] = arguments[_i];
}
return __awaiter(this, void 0, void 0, function () {
var responseBuffer, responseBody, skipResponseBodyModification, dezippedBuffer, headers, stringifiedHeaders;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (restArgs[0]) {
chunks_1.push(Buffer.from(restArgs[0]));
}
responseBuffer = Buffer.concat(chunks_1);
if (responseBuffer.byteLength === 0
|| responseBuffer.byteLength > (options.maxPayloadSize || MULTIPLAYER_MAX_HTTP_REQUEST_RESPONSE_SIZE)) {
// eslint-disable-next-line
// @ts-ignore
return [2 /*return*/, oldEnd_1.apply(_response_1, restArgs)];
}
skipResponseBodyModification = false;
if (!isGzip(responseBuffer)) return [3 /*break*/, 4];
if (!options.uncompressPayload) return [3 /*break*/, 2];
return [4 /*yield*/, new Promise(function (resolve) { return zlib
.gunzip(responseBuffer, function (err, dezipped) {
if (err) {
return resolve(Buffer.from(''));
}
else {
return resolve(dezipped);
}
}); })];
case 1:
dezippedBuffer = _a.sent();
responseBody = dezippedBuffer.toString('utf-8');
return [3 /*break*/, 3];
case 2:
span.setAttribute(ATTR_MULTIPLAYER_HTTP_RESPONSE_BODY_ENCODING, 'gzip');
skipResponseBodyModification = true;
responseBody = responseBuffer.toString('hex');
_a.label = 3;
case 3: return [3 /*break*/, 5];
case 4:
responseBody = responseBuffer.toString('utf-8');
_a.label = 5;
case 5:
if (!skipResponseBodyModification) {
if (traceId_1.startsWith(MULTIPLAYER_TRACE_DEBUG_PREFIX)
&& options.maskDebSpanPayload) {
responseBody = mask(responseBody);
}
else if (options.schemifyDocSpanPayload) {
responseBody = schemify(responseBody);
}
else if (typeof responseBody !== 'string') {
responseBody = JSON.stringify(responseBody);
}
}
if (responseBody.length) {
span.setAttribute(ATTR_MULTIPLAYER_HTTP_RESPONSE_BODY, responseBody);
}
headers = maskHeaders(_response_1.getHeaders(), options.headersToMask);
stringifiedHeaders = JSON.stringify(headers);
if (stringifiedHeaders === null || stringifiedHeaders === void 0 ? void 0 : stringifiedHeaders.length) {
span.setAttribute(ATTR_MULTIPLAYER_HTTP_RESPONSE_HEADERS, stringifiedHeaders);
}
// eslint-disable-next-line
// @ts-ignore
return [2 /*return*/, oldEnd_1.apply(_response_1, restArgs)];
}
});
});
};
}
catch (error) {
// eslint-disable-next-line
console.error('An error occured in multiplayer otlp http responseHook', error);
}
};
},
requestHook: function (options) {
if (options === void 0) { options = {}; }
return function (span, request) {
var _a;
try {
options = __assign({ maskDebSpanPayload: true, schemifyDocSpanPayload: true }, options);
var traceId_2 = span.spanContext().traceId;
var _request = request;
var contentType = (_a = _request === null || _request === void 0 ? void 0 : _request.headers) === null || _a === void 0 ? void 0 : _a['content-type'];
if (!contentType || !(contentType === null || contentType === void 0 ? void 0 : contentType.includes('application/json'))) {
return;
}
var headers = maskHeaders(_request.headers, options.headersToMask);
span.setAttribute(ATTR_MULTIPLAYER_HTTP_REQUEST_HEADERS, JSON.stringify(headers));
var body_1 = '';
_request.on('data', function (chunk) {
body_1 += chunk;
});
_request.on('end', function () {
try {
var requestBodySizeBytes = Buffer.byteLength(body_1, 'utf8');
if (requestBodySizeBytes === 0
|| requestBodySizeBytes > (options.maxPayloadSize || MULTIPLAYER_MAX_HTTP_REQUEST_RESPONSE_SIZE)) {
return;
}
var requestBody = body_1;
if (!requestBody)
return;
if (traceId_2.startsWith(MULTIPLAYER_TRACE_DEBUG_PREFIX)
&& options.maskDebSpanPayload) {
requestBody = mask(requestBody);
}
else if (options.schemifyDocSpanPayload) {
requestBody = schemify(requestBody);
}
else if (typeof requestBody !== 'string') {
requestBody = JSON.stringify(requestBody);
}
if (requestBody === null || requestBody === void 0 ? void 0 : requestBody.length) {
span.setAttribute(ATTR_MULTIPLAYER_HTTP_REQUEST_BODY, requestBody);
}
}
catch (err) {
// eslint-disable-next-line
console.error('[MULTIPLAYER-HTTP-REQ-HOOK] An error occured in multiplayer otlp http requestHook', err);
}
});
}
catch (error) {
// eslint-disable-next-line
console.error('An error occured in multiplayer otlp http requestHook', error);
}
};
},
};
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