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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.HTTPRequest = void 0;
const assert_js_1 = require("./assert.js");
const helper_js_1 = require("./helper.js");
/**
*
* Represents an HTTP request sent by a page.
* @remarks
*
* Whenever the page sends a request, such as for a network resource, the
* following events are emitted by Puppeteer's `page`:
*
* - `request`: emitted when the request is issued by the page.
* - `requestfinished` - emitted when the response body is downloaded and the
* request is complete.
*
* If request fails at some point, then instead of `requestfinished` event the
* `requestfailed` event is emitted.
*
* All of these events provide an instance of `HTTPRequest` representing the
* request that occurred:
*
* ```
* page.on('request', request => ...)
* ```
*
* NOTE: HTTP Error responses, such as 404 or 503, are still successful
* responses from HTTP standpoint, so request will complete with
* `requestfinished` event.
*
* If request gets a 'redirect' response, the request is successfully finished
* with the `requestfinished` event, and a new request is issued to a
* redirected url.
*
* @public
*/
class HTTPRequest {
/**
* @internal
*/
constructor(client, frame, interceptionId, allowInterception, event, redirectChain) {
/**
* @internal
*/
this._failureText = null;
/**
* @internal
*/
this._response = null;
/**
* @internal
*/
this._fromMemoryCache = false;
this._interceptionHandled = false;
this._headers = {};
this._client = client;
this._requestId = event.requestId;
this._isNavigationRequest =
event.requestId === event.loaderId && event.type === 'Document';
this._interceptionId = interceptionId;
this._allowInterception = allowInterception;
this._url = event.request.url;
this._resourceType = event.type.toLowerCase();
this._method = event.request.method;
this._postData = event.request.postData;
this._frame = frame;
this._redirectChain = redirectChain;
for (const key of Object.keys(event.request.headers))
this._headers[key.toLowerCase()] = event.request.headers[key];
}
/**
* @returns the URL of the request
*/
url() {
return this._url;
}
/**
* Contains the request's resource type as it was perceived by the rendering
* engine.
* @remarks
* @returns one of the following: `document`, `stylesheet`, `image`, `media`,
* `font`, `script`, `texttrack`, `xhr`, `fetch`, `eventsource`, `websocket`,
* `manifest`, `other`.
*/
resourceType() {
// TODO (@jackfranklin): protocol.d.ts has a type for this, but all the
// string values are uppercase. The Puppeteer docs explicitly say the
// potential values are all lower case, and the constructor takes the event
// type and calls toLowerCase() on it, so we can't reuse the type from the
// protocol.d.ts. Why do we lower case?
return this._resourceType;
}
/**
* @returns the method used (`GET`, `POST`, etc.)
*/
method() {
return this._method;
}
/**
* @returns the request's post body, if any.
*/
postData() {
return this._postData;
}
/**
* @returns an object with HTTP headers associated with the request. All
* header names are lower-case.
*/
headers() {
return this._headers;
}
/**
* @returns the response for this request, if a response has been received.
*/
response() {
return this._response;
}
/**
* @returns the frame that initiated the request.
*/
frame() {
return this._frame;
}
/**
* @returns true if the request is the driver of the current frame's navigation.
*/
isNavigationRequest() {
return this._isNavigationRequest;
}
/**
* @remarks
*
* `redirectChain` is shared between all the requests of the same chain.
*
* For example, if the website `http://example.com` has a single redirect to
* `https://example.com`, then the chain will contain one request:
*
* ```js
* const response = await page.goto('http://example.com');
* const chain = response.request().redirectChain();
* console.log(chain.length); // 1
* console.log(chain[0].url()); // 'http://example.com'
* ```
*
* If the website `https://google.com` has no redirects, then the chain will be empty:
*
* ```js
* const response = await page.goto('https://google.com');
* const chain = response.request().redirectChain();
* console.log(chain.length); // 0
* ```
*
* @returns the chain of requests - if a server responds with at least a
* single redirect, this chain will contain all requests that were redirected.
*/
redirectChain() {
return this._redirectChain.slice();
}
/**
* Access information about the request's failure.
*
* @remarks
*
* @example
*
* Example of logging all failed requests:
*
* ```js
* page.on('requestfailed', request => {
* console.log(request.url() + ' ' + request.failure().errorText);
* });
* ```
*
* @returns `null` unless the request failed. If the request fails this can
* return an object with `errorText` containing a human-readable error
* message, e.g. `net::ERR_FAILED`. It is not guaranteeded that there will be
* failure text if the request fails.
*/
failure() {
if (!this._failureText)
return null;
return {
errorText: this._failureText,
};
}
/**
* Continues request with optional request overrides.
*
* @remarks
*
* To use this, request
* interception should be enabled with {@link Page.setRequestInterception}.
*
* Exception is immediately thrown if the request interception is not enabled.
*
* @example
* ```js
* await page.setRequestInterception(true);
* page.on('request', request => {
* // Override headers
* const headers = Object.assign({}, request.headers(), {
* foo: 'bar', // set "foo" header
* origin: undefined, // remove "origin" header
* });
* request.continue({headers});
* });
* ```
*
* @param overrides - optional overrides to apply to the request.
*/
async continue(overrides = {}) {
// Request interception is not supported for data: urls.
if (this._url.startsWith('data:'))
return;
assert_js_1.assert(this._allowInterception, 'Request Interception is not enabled!');
assert_js_1.assert(!this._interceptionHandled, 'Request is already handled!');
const { url, method, postData, headers } = overrides;
this._interceptionHandled = true;
const postDataBinaryBase64 = postData
? Buffer.from(postData).toString('base64')
: undefined;
await this._client
.send('Fetch.continueRequest', {
requestId: this._interceptionId,
url,
method,
postData: postDataBinaryBase64,
headers: headers ? headersArray(headers) : undefined,
})
.catch((error) => {
// In certain cases, protocol will return error if the request was
// already canceled or the page was closed. We should tolerate these
// errors.
helper_js_1.debugError(error);
});
}
/**
* Fulfills a request with the given response.
*
* @remarks
*
* To use this, request
* interception should be enabled with {@link Page.setRequestInterception}.
*
* Exception is immediately thrown if the request interception is not enabled.
*
* @example
* An example of fulfilling all requests with 404 responses:
* ```js
* await page.setRequestInterception(true);
* page.on('request', request => {
* request.respond({
* status: 404,
* contentType: 'text/plain',
* body: 'Not Found!'
* });
* });
* ```
*
* NOTE: Mocking responses for dataURL requests is not supported.
* Calling `request.respond` for a dataURL request is a noop.
*
* @param response - the response to fulfill the request with.
*/
async respond(response) {
// Mocking responses for dataURL requests is not currently supported.
if (this._url.startsWith('data:'))
return;
assert_js_1.assert(this._allowInterception, 'Request Interception is not enabled!');
assert_js_1.assert(!this._interceptionHandled, 'Request is already handled!');
this._interceptionHandled = true;
const responseBody = response.body && helper_js_1.helper.isString(response.body)
? Buffer.from(response.body)
: response.body || null;
const responseHeaders = {};
if (response.headers) {
for (const header of Object.keys(response.headers))
responseHeaders[header.toLowerCase()] = response.headers[header];
}
if (response.contentType)
responseHeaders['content-type'] = response.contentType;
if (responseBody && !('content-length' in responseHeaders))
responseHeaders['content-length'] = String(Buffer.byteLength(responseBody));
await this._client
.send('Fetch.fulfillRequest', {
requestId: this._interceptionId,
responseCode: response.status || 200,
responsePhrase: STATUS_TEXTS[response.status || 200],
responseHeaders: headersArray(responseHeaders),
body: responseBody ? responseBody.toString('base64') : undefined,
})
.catch((error) => {
// In certain cases, protocol will return error if the request was
// already canceled or the page was closed. We should tolerate these
// errors.
helper_js_1.debugError(error);
});
}
/**
* Aborts a request.
*
* @remarks
* To use this, request interception should be enabled with
* {@link Page.setRequestInterception}. If it is not enabled, this method will
* throw an exception immediately.
*
* @param errorCode - optional error code to provide.
*/
async abort(errorCode = 'failed') {
// Request interception is not supported for data: urls.
if (this._url.startsWith('data:'))
return;
const errorReason = errorReasons[errorCode];
assert_js_1.assert(errorReason, 'Unknown error code: ' + errorCode);
assert_js_1.assert(this._allowInterception, 'Request Interception is not enabled!');
assert_js_1.assert(!this._interceptionHandled, 'Request is already handled!');
this._interceptionHandled = true;
await this._client
.send('Fetch.failRequest', {
requestId: this._interceptionId,
errorReason,
})
.catch((error) => {
// In certain cases, protocol will return error if the request was
// already canceled or the page was closed. We should tolerate these
// errors.
helper_js_1.debugError(error);
});
}
}
exports.HTTPRequest = HTTPRequest;
const errorReasons = {
aborted: 'Aborted',
accessdenied: 'AccessDenied',
addressunreachable: 'AddressUnreachable',
blockedbyclient: 'BlockedByClient',
blockedbyresponse: 'BlockedByResponse',
connectionaborted: 'ConnectionAborted',
connectionclosed: 'ConnectionClosed',
connectionfailed: 'ConnectionFailed',
connectionrefused: 'ConnectionRefused',
connectionreset: 'ConnectionReset',
internetdisconnected: 'InternetDisconnected',
namenotresolved: 'NameNotResolved',
timedout: 'TimedOut',
failed: 'Failed',
};
function headersArray(headers) {
const result = [];
for (const name in headers) {
if (!Object.is(headers[name], undefined))
result.push({ name, value: headers[name] + '' });
}
return result;
}
// List taken from
// https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
// with extra 306 and 418 codes.
const STATUS_TEXTS = {
'100': 'Continue',
'101': 'Switching Protocols',
'102': 'Processing',
'103': 'Early Hints',
'200': 'OK',
'201': 'Created',
'202': 'Accepted',
'203': 'Non-Authoritative Information',
'204': 'No Content',
'205': 'Reset Content',
'206': 'Partial Content',
'207': 'Multi-Status',
'208': 'Already Reported',
'226': 'IM Used',
'300': 'Multiple Choices',
'301': 'Moved Permanently',
'302': 'Found',
'303': 'See Other',
'304': 'Not Modified',
'305': 'Use Proxy',
'306': 'Switch Proxy',
'307': 'Temporary Redirect',
'308': 'Permanent Redirect',
'400': 'Bad Request',
'401': 'Unauthorized',
'402': 'Payment Required',
'403': 'Forbidden',
'404': 'Not Found',
'405': 'Method Not Allowed',
'406': 'Not Acceptable',
'407': 'Proxy Authentication Required',
'408': 'Request Timeout',
'409': 'Conflict',
'410': 'Gone',
'411': 'Length Required',
'412': 'Precondition Failed',
'413': 'Payload Too Large',
'414': 'URI Too Long',
'415': 'Unsupported Media Type',
'416': 'Range Not Satisfiable',
'417': 'Expectation Failed',
'418': "I'm a teapot",
'421': 'Misdirected Request',
'422': 'Unprocessable Entity',
'423': 'Locked',
'424': 'Failed Dependency',
'425': 'Too Early',
'426': 'Upgrade Required',
'428': 'Precondition Required',
'429': 'Too Many Requests',
'431': 'Request Header Fields Too Large',
'451': 'Unavailable For Legal Reasons',
'500': 'Internal Server Error',
'501': 'Not Implemented',
'502': 'Bad Gateway',
'503': 'Service Unavailable',
'504': 'Gateway Timeout',
'505': 'HTTP Version Not Supported',
'506': 'Variant Also Negotiates',
'507': 'Insufficient Storage',
'508': 'Loop Detected',
'510': 'Not Extended',
'511': 'Network Authentication Required',
};