/
HTTPResponse.ts
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/
HTTPResponse.ts
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/**
* Copyright 2020 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { CDPSession } from './Connection';
import { Frame } from './FrameManager';
import { HTTPRequest } from './HTTPRequest';
import { SecurityDetails } from './SecurityDetails';
import Protocol from '../protocol';
interface RemoteAddress {
ip: string;
port: number;
}
export class HTTPResponse {
private _client: CDPSession;
private _request: HTTPRequest;
private _contentPromise: Promise<Buffer> | null = null;
private _bodyLoadedPromise: Promise<Error | void>;
private _bodyLoadedPromiseFulfill: (err: Error | void) => void;
private _remoteAddress: RemoteAddress;
private _status: number;
private _statusText: string;
private _url: string;
private _fromDiskCache: boolean;
private _fromServiceWorker: boolean;
private _headers: Record<string, string> = {};
private _securityDetails: SecurityDetails | null;
constructor(
client: CDPSession,
request: HTTPRequest,
responsePayload: Protocol.Network.Response
) {
this._client = client;
this._request = request;
this._bodyLoadedPromise = new Promise((fulfill) => {
this._bodyLoadedPromiseFulfill = fulfill;
});
this._remoteAddress = {
ip: responsePayload.remoteIPAddress,
port: responsePayload.remotePort,
};
this._status = responsePayload.status;
this._statusText = responsePayload.statusText;
this._url = request.url();
this._fromDiskCache = !!responsePayload.fromDiskCache;
this._fromServiceWorker = !!responsePayload.fromServiceWorker;
for (const key of Object.keys(responsePayload.headers))
this._headers[key.toLowerCase()] = responsePayload.headers[key];
this._securityDetails = responsePayload.securityDetails
? new SecurityDetails(responsePayload.securityDetails)
: null;
}
_resolveBody(err: Error | null): void {
return this._bodyLoadedPromiseFulfill(err);
}
remoteAddress(): RemoteAddress {
return this._remoteAddress;
}
url(): string {
return this._url;
}
ok(): boolean {
return this._status === 0 || (this._status >= 200 && this._status <= 299);
}
status(): number {
return this._status;
}
statusText(): string {
return this._statusText;
}
headers(): Record<string, string> {
return this._headers;
}
securityDetails(): SecurityDetails | null {
return this._securityDetails;
}
buffer(): Promise<Buffer> {
if (!this._contentPromise) {
this._contentPromise = this._bodyLoadedPromise.then(async (error) => {
if (error) throw error;
const response = await this._client.send('Network.getResponseBody', {
requestId: this._request._requestId,
});
return Buffer.from(
response.body,
response.base64Encoded ? 'base64' : 'utf8'
);
});
}
return this._contentPromise;
}
async text(): Promise<string> {
const content = await this.buffer();
return content.toString('utf8');
}
async json(): Promise<any> {
const content = await this.text();
return JSON.parse(content);
}
request(): HTTPRequest {
return this._request;
}
fromCache(): boolean {
return this._fromDiskCache || this._request._fromMemoryCache;
}
fromServiceWorker(): boolean {
return this._fromServiceWorker;
}
frame(): Frame | null {
return this._request.frame();
}
}