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/**
* @license
* Copyright 2020 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import type {Protocol} from 'devtools-protocol';
import type {CDPSession} from '../api/CDPSession.js';
import type {Frame} from '../api/Frame.js';
import {HTTPResponse, type RemoteAddress} from '../api/HTTPResponse.js';
import {ProtocolError} from '../common/Errors.js';
import {SecurityDetails} from '../common/SecurityDetails.js';
import {Deferred} from '../util/Deferred.js';
import type {CdpHTTPRequest} from './HTTPRequest.js';
/**
* @internal
*/
export class CdpHTTPResponse extends HTTPResponse {
#client: CDPSession;
#request: CdpHTTPRequest;
#contentPromise: Promise<Buffer> | null = null;
#bodyLoadedDeferred = Deferred.create<void, Error>();
#remoteAddress: RemoteAddress;
#status: number;
#statusText: string;
#url: string;
#fromDiskCache: boolean;
#fromServiceWorker: boolean;
#headers: Record<string, string> = {};
#securityDetails: SecurityDetails | null;
#timing: Protocol.Network.ResourceTiming | null;
constructor(
client: CDPSession,
request: CdpHTTPRequest,
responsePayload: Protocol.Network.Response,
extraInfo: Protocol.Network.ResponseReceivedExtraInfoEvent | null
) {
super();
this.#client = client;
this.#request = request;
this.#remoteAddress = {
ip: responsePayload.remoteIPAddress,
port: responsePayload.remotePort,
};
this.#statusText =
this.#parseStatusTextFromExtraInfo(extraInfo) ||
responsePayload.statusText;
this.#url = request.url();
this.#fromDiskCache = !!responsePayload.fromDiskCache;
this.#fromServiceWorker = !!responsePayload.fromServiceWorker;
this.#status = extraInfo ? extraInfo.statusCode : responsePayload.status;
const headers = extraInfo ? extraInfo.headers : responsePayload.headers;
for (const [key, value] of Object.entries(headers)) {
this.#headers[key.toLowerCase()] = value;
}
this.#securityDetails = responsePayload.securityDetails
? new SecurityDetails(responsePayload.securityDetails)
: null;
this.#timing = responsePayload.timing || null;
}
#parseStatusTextFromExtraInfo(
extraInfo: Protocol.Network.ResponseReceivedExtraInfoEvent | null
): string | undefined {
if (!extraInfo || !extraInfo.headersText) {
return;
}
const firstLine = extraInfo.headersText.split('\r', 1)[0];
if (!firstLine) {
return;
}
const match = firstLine.match(/[^ ]* [^ ]* (.*)/);
if (!match) {
return;
}
const statusText = match[1];
if (!statusText) {
return;
}
return statusText;
}
_resolveBody(err?: Error): void {
if (err) {
return this.#bodyLoadedDeferred.reject(err);
}
return this.#bodyLoadedDeferred.resolve();
}
override remoteAddress(): RemoteAddress {
return this.#remoteAddress;
}
override url(): string {
return this.#url;
}
override status(): number {
return this.#status;
}
override statusText(): string {
return this.#statusText;
}
override headers(): Record<string, string> {
return this.#headers;
}
override securityDetails(): SecurityDetails | null {
return this.#securityDetails;
}
override timing(): Protocol.Network.ResourceTiming | null {
return this.#timing;
}
override buffer(): Promise<Buffer> {
if (!this.#contentPromise) {
this.#contentPromise = this.#bodyLoadedDeferred
.valueOrThrow()
.then(async () => {
try {
const response = await this.#client.send(
'Network.getResponseBody',
{
requestId: this.#request._requestId,
}
);
return Buffer.from(
response.body,
response.base64Encoded ? 'base64' : 'utf8'
);
} catch (error) {
if (
error instanceof ProtocolError &&
error.originalMessage ===
'No resource with given identifier found'
) {
throw new ProtocolError(
'Could not load body for this request. This might happen if the request is a preflight request.'
);
}
throw error;
}
});
}
return this.#contentPromise;
}
override request(): CdpHTTPRequest {
return this.#request;
}
override fromCache(): boolean {
return this.#fromDiskCache || this.#request._fromMemoryCache;
}
override fromServiceWorker(): boolean {
return this.#fromServiceWorker;
}
override frame(): Frame | null {
return this.#request.frame();
}
}
|
