Enable websocket interception in RN network inspector tool
Summary: This diff enables network inspection for WebSocket APIs, so by now XMLHttpRequest, Fetch and WebSocket are all supported. Android and iOS are both supported. This diff monkey-patches the RCTWebSocketModule which WebSocket API builds on, and now it is able to intercept all WebSocket requests when app is running. The intercepted information of a WebSocket includes url, protocols, status, messages (sent and received), close reason, server close event and server error information, etc. Reviewed By: davidaurelio Differential Revision: D3641770 fbshipit-source-id: 393df0da74ed95b1fd60e38b0d67ed61b3dd5ff3
This commit is contained in:
Siqi Liu
Facebook Github Bot 5
Родитель
1e8b83d2e6
Коммит
43f73f675f
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@ -19,6 +19,7 @@ const StyleSheet = require('StyleSheet');
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const Text = require('Text');
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const TouchableHighlight = require('TouchableHighlight');
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const View = require('View');
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const WebSocketInterceptor = require('WebSocketInterceptor');
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const XHRInterceptor = require('XHRInterceptor');
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const LISTVIEW_CELL_HEIGHT = 15;
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@ -28,6 +29,7 @@ const SEPARATOR_THICKNESS = 2;
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let nextXHRId = 0;
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type NetworkRequestInfo = {
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type?: string,
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url?: string,
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method?: string,
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status?: number,
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@ -40,6 +42,10 @@ type NetworkRequestInfo = {
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responseURL?: string,
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responseType?: string,
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timeout?: number,
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closeReason?: string,
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messages?: string,
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serverClose?: Object,
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serverError?: Object,
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};
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/**
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@ -64,6 +70,8 @@ class NetworkOverlay extends React.Component {
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) => ReactElement<any>;
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_renderScrollComponent: (props: Object) => ReactElement<any>;
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_closeButtonClicked: () => void;
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// Map of `socketId` -> `index in `_requests``.
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_socketIdMap: Object;
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// Map of `xhr._index` -> `index in `_requests``.
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_xhrIdMap: {[key: number]: number};
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@ -92,15 +100,16 @@ class NetworkOverlay extends React.Component {
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this._renderRow = this._renderRow.bind(this);
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this._renderScrollComponent = this._renderScrollComponent.bind(this);
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this._closeButtonClicked = this._closeButtonClicked.bind(this);
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this._socketIdMap = {};
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this._xhrIdMap = {};
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}
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_enableInterception(): void {
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_enableXHRInterception(): void {
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if (XHRInterceptor.isInterceptorEnabled()) {
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return;
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}
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// Show the network request item in listView as soon as it was opened.
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XHRInterceptor.setOpenCallback(function(method, url, xhr) {
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// Show the XHR request item in listView as soon as it was opened.
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XHRInterceptor.setOpenCallback((method, url, xhr) => {
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// Generate a global id for each intercepted xhr object, add this id
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// to the xhr object as a private `_index` property to identify it,
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// so that we can distinguish different xhr objects in callbacks.
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@ -109,6 +118,7 @@ class NetworkOverlay extends React.Component {
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this._xhrIdMap[xhr._index] = xhrIndex;
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const _xhr: NetworkRequestInfo = {
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'type': 'XMLHttpRequest',
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'method': method,
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'url': url
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};
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@ -119,9 +129,9 @@ class NetworkOverlay extends React.Component {
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{dataSource: this._listViewDataSource.cloneWithRows(this._requests)},
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this._scrollToBottom(),
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);
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}.bind(this));
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});
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XHRInterceptor.setRequestHeaderCallback(function(header, value, xhr) {
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XHRInterceptor.setRequestHeaderCallback((header, value, xhr) => {
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const xhrIndex = this._getRequestIndexByXHRID(xhr._index);
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if (xhrIndex === -1) {
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return;
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@ -132,19 +142,19 @@ class NetworkOverlay extends React.Component {
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}
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networkInfo.requestHeaders[header] = value;
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this._genDetailViewItem(xhrIndex);
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}.bind(this));
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});
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XHRInterceptor.setSendCallback(function(data, xhr) {
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XHRInterceptor.setSendCallback((data, xhr) => {
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const xhrIndex = this._getRequestIndexByXHRID(xhr._index);
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if (xhrIndex === -1) {
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return;
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}
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this._requests[xhrIndex].dataSent = data;
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this._genDetailViewItem(xhrIndex);
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}.bind(this));
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});
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XHRInterceptor.setHeaderReceivedCallback(
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function(type, size, responseHeaders, xhr) {
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(type, size, responseHeaders, xhr) => {
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const xhrIndex = this._getRequestIndexByXHRID(xhr._index);
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if (xhrIndex === -1) {
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return;
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@ -154,18 +164,17 @@ class NetworkOverlay extends React.Component {
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networkInfo.responseSize = size;
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networkInfo.responseHeaders = responseHeaders;
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this._genDetailViewItem(xhrIndex);
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}.bind(this)
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}
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);
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XHRInterceptor.setResponseCallback(
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function(
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XHRInterceptor.setResponseCallback((
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status,
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timeout,
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response,
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responseURL,
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responseType,
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xhr,
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) {
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) => {
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const xhrIndex = this._getRequestIndexByXHRID(xhr._index);
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if (xhrIndex === -1) {
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return;
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@ -177,19 +186,107 @@ class NetworkOverlay extends React.Component {
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networkInfo.responseURL = responseURL;
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networkInfo.responseType = responseType;
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this._genDetailViewItem(xhrIndex);
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}.bind(this)
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}
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);
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// Fire above callbacks.
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XHRInterceptor.enableInterception();
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}
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_enableWebSocketInterception(): void {
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if (WebSocketInterceptor.isInterceptorEnabled()) {
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return;
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}
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// Show the WebSocket request item in listView when 'connect' is called.
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WebSocketInterceptor.setConnectCallback(
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(url, protocols, options, socketId) => {
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const socketIndex = this._requests.length;
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this._socketIdMap[socketId] = socketIndex;
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const _webSocket: NetworkRequestInfo = {
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'type': 'WebSocket',
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'url': url,
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'protocols': protocols,
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};
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this._requests.push(_webSocket);
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this._detailViewItems.push([]);
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this._genDetailViewItem(socketIndex);
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this.setState(
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{dataSource: this._listViewDataSource.cloneWithRows(this._requests)},
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this._scrollToBottom(),
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);
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}
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);
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WebSocketInterceptor.setCloseCallback(
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(statusCode, closeReason, socketId) => {
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const socketIndex = this._socketIdMap[socketId];
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if (socketIndex === undefined) {
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return;
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}
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if (statusCode !== null && closeReason !== null) {
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this._requests[socketIndex].status = statusCode;
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this._requests[socketIndex].closeReason = closeReason;
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}
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this._genDetailViewItem(socketIndex);
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}
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);
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WebSocketInterceptor.setSendCallback((data, socketId) => {
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const socketIndex = this._socketIdMap[socketId];
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if (socketIndex === undefined) {
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return;
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}
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if (!this._requests[socketIndex].messages) {
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this._requests[socketIndex].messages = '';
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}
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this._requests[socketIndex].messages +=
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'Sent: ' + JSON.stringify(data) + '\n';
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this._genDetailViewItem(socketIndex);
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});
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WebSocketInterceptor.setOnMessageCallback((socketId, message) => {
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const socketIndex = this._socketIdMap[socketId];
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if (socketIndex === undefined) {
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return;
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}
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if (!this._requests[socketIndex].messages) {
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this._requests[socketIndex].messages = '';
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}
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this._requests[socketIndex].messages +=
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'Received: ' + JSON.stringify(message) + '\n';
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this._genDetailViewItem(socketIndex);
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});
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WebSocketInterceptor.setOnCloseCallback((socketId, message) => {
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const socketIndex = this._socketIdMap[socketId];
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if (socketIndex === undefined) {
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return;
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}
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this._requests[socketIndex].serverClose = message;
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this._genDetailViewItem(socketIndex);
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});
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WebSocketInterceptor.setOnErrorCallback((socketId, message) => {
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const socketIndex = this._socketIdMap[socketId];
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if (socketIndex === undefined) {
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return;
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}
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this._requests[socketIndex].serverError = message;
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this._genDetailViewItem(socketIndex);
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});
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// Fire above callbacks.
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WebSocketInterceptor.enableInterception();
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}
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componentDidMount() {
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this._enableInterception();
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this._enableXHRInterception();
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this._enableWebSocketInterception();
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}
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componentWillUnmount() {
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XHRInterceptor.disableInterception();
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WebSocketInterceptor.disableInterception();
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}
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_renderRow(
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@ -218,7 +315,7 @@ class NetworkOverlay extends React.Component {
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</View>
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<View style={methodCellViewStyle}>
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<Text style={styles.cellText} numberOfLines={1}>
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{rowData.method}
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{this._getTypeShortName(rowData.type)}
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</Text>
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</View>
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</View>
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@ -331,6 +428,16 @@ class NetworkOverlay extends React.Component {
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}
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}
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_getTypeShortName(type: any): string {
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if (type === 'XMLHttpRequest') {
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return 'XHR';
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} else if (type === 'WebSocket') {
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return 'WS';
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}
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return '';
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}
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/**
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* Generate a list of views containing network request information for
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* a XHR object, to be shown in the detail scrollview. This function
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@ -354,7 +461,8 @@ class NetworkOverlay extends React.Component {
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);
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}
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// Re-render if this network request is showing in the detail view.
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if (this.state.detailRowID != null && Number(this.state.detailRowID) === index) {
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if (this.state.detailRowID != null &&
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Number(this.state.detailRowID) === index) {
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this.setState({newDetailInfo: true});
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}
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}
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@ -383,7 +491,7 @@ class NetworkOverlay extends React.Component {
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<Text style={styles.cellText} numberOfLines={1}>URL</Text>
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</View>
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<View style={styles.methodTitleCellView}>
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<Text style={styles.cellText} numberOfLines={1}>Method</Text>
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<Text style={styles.cellText} numberOfLines={1}>Type</Text>
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</View>
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</View>}
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</View>
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@ -510,10 +618,10 @@ const styles = StyleSheet.create({
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fontSize: 10,
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},
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closeButton: {
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marginTop: 5,
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backgroundColor: '#888',
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justifyContent: 'center',
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alignItems: 'center',
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right: 0,
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},
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});
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@ -0,0 +1,219 @@
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/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule WebSocketInterceptor
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*/
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'use strict';
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const RCTWebSocketModule = require('NativeModules').WebSocketModule;
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const NativeEventEmitter = require('NativeEventEmitter');
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const base64 = require('base64-js');
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const originalRCTWebSocketConnect = RCTWebSocketModule.connect;
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const originalRCTWebSocketSend = RCTWebSocketModule.send;
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const originalRCTWebSocketSendBinary = RCTWebSocketModule.sendBinary;
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const originalRCTWebSocketClose = RCTWebSocketModule.close;
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let eventEmitter: NativeEventEmitter;
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let subscriptions: Array<EventSubscription>;
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let closeCallback;
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let sendCallback;
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let connectCallback;
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let onOpenCallback;
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let onMessageCallback;
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let onErrorCallback;
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let onCloseCallback;
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let isInterceptorEnabled = false;
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/**
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* A network interceptor which monkey-patches RCTWebSocketModule methods
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* to gather all websocket network requests/responses, in order to show
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* their information in the React Native inspector development tool.
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*/
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const WebSocketInterceptor = {
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/**
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* Invoked when RCTWebSocketModule.close(...) is called.
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*/
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setCloseCallback(callback) {
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closeCallback = callback;
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},
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/**
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* Invoked when RCTWebSocketModule.send(...) or sendBinary(...) is called.
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*/
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setSendCallback(callback) {
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sendCallback = callback;
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},
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/**
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* Invoked when RCTWebSocketModule.connect(...) is called.
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*/
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setConnectCallback(callback) {
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connectCallback = callback;
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},
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/**
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* Invoked when event "websocketOpen" happens.
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*/
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setOnOpenCallback(callback) {
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onOpenCallback = callback;
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},
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/**
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* Invoked when event "websocketMessage" happens.
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*/
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setOnMessageCallback(callback) {
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onMessageCallback = callback;
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},
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/**
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* Invoked when event "websocketFailed" happens.
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*/
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setOnErrorCallback(callback) {
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onErrorCallback = callback;
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},
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/**
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* Invoked when event "websocketClosed" happens.
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*/
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setOnCloseCallback(callback) {
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onCloseCallback = callback;
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},
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isInterceptorEnabled() {
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return isInterceptorEnabled;
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},
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_unregisterEvents() {
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subscriptions.forEach(e => e.remove());
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subscriptions = [];
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},
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/**
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* Add listeners to the RCTWebSocketModule events to intercept them.
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*/
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_registerEvents() {
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subscriptions = [
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eventEmitter.addListener('websocketMessage', ev => {
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if (onMessageCallback) {
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onMessageCallback(
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ev.id,
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(ev.type === 'binary') ?
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WebSocketInterceptor._arrayBufferToString(ev.data) : ev.data,
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);
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}
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}),
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eventEmitter.addListener('websocketOpen', ev => {
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if (onOpenCallback) {
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onOpenCallback(ev.id);
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}
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}),
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eventEmitter.addListener('websocketClosed', ev => {
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if (onCloseCallback) {
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onCloseCallback(ev.id, {code: ev.code, reason: ev.reason});
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}
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}),
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eventEmitter.addListener('websocketFailed', ev => {
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if (onErrorCallback) {
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onErrorCallback(ev.id, {message: ev.message});
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}
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})
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];
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},
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enableInterception() {
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if (isInterceptorEnabled) {
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return;
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}
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eventEmitter = new NativeEventEmitter(RCTWebSocketModule);
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WebSocketInterceptor._registerEvents();
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// Override `connect` method for all RCTWebSocketModule requests
|
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// to intercept the request url, protocols, options and socketId,
|
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// then pass them through the `connectCallback`.
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RCTWebSocketModule.connect = function(url, protocols, options, socketId) {
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if (connectCallback) {
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connectCallback(url, protocols, options, socketId);
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}
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originalRCTWebSocketConnect.apply(this, arguments);
|
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};
|
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|
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// Override `send` method for all RCTWebSocketModule requests to intercept
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// the data sent, then pass them through the `sendCallback`.
|
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RCTWebSocketModule.send = function(data, socketId) {
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if (sendCallback) {
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sendCallback(data, socketId);
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}
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originalRCTWebSocketSend.apply(this, arguments);
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};
|
||||
|
||||
// Override `sendBinary` method for all RCTWebSocketModule requests to
|
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// intercept the data sent, then pass them through the `sendCallback`.
|
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RCTWebSocketModule.sendBinary = function(data, socketId) {
|
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if (sendCallback) {
|
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sendCallback(WebSocketInterceptor._arrayBufferToString(data), socketId);
|
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}
|
||||
originalRCTWebSocketSendBinary.apply(this, arguments);
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||||
};
|
||||
|
||||
// Override `close` method for all RCTWebSocketModule requests to intercept
|
||||
// the close information, then pass them through the `closeCallback`.
|
||||
RCTWebSocketModule.close = function() {
|
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if (closeCallback) {
|
||||
if (arguments.length === 3) {
|
||||
closeCallback(arguments[0], arguments[1], arguments[2]);
|
||||
} else {
|
||||
closeCallback(null, null, arguments[0]);
|
||||
}
|
||||
}
|
||||
originalRCTWebSocketClose.apply(this, arguments);
|
||||
};
|
||||
|
||||
isInterceptorEnabled = true;
|
||||
},
|
||||
|
||||
_arrayBufferToString(data) {
|
||||
const value = base64.toByteArray(data).buffer;
|
||||
if (value === undefined || value === null) {
|
||||
return '(no value)';
|
||||
}
|
||||
if (typeof ArrayBuffer !== 'undefined' &&
|
||||
typeof Uint8Array !== 'undefined' &&
|
||||
value instanceof ArrayBuffer) {
|
||||
return `ArrayBuffer {${String(Array.from(new Uint8Array(value)))}}`;
|
||||
}
|
||||
return value;
|
||||
},
|
||||
|
||||
// Unpatch RCTWebSocketModule methods and remove the callbacks.
|
||||
disableInterception() {
|
||||
if (!isInterceptorEnabled) {
|
||||
return;
|
||||
}
|
||||
isInterceptorEnabled = false;
|
||||
RCTWebSocketModule.send = originalRCTWebSocketSend;
|
||||
RCTWebSocketModule.sendBinary = originalRCTWebSocketSendBinary;
|
||||
RCTWebSocketModule.close = originalRCTWebSocketClose;
|
||||
RCTWebSocketModule.connect = originalRCTWebSocketConnect;
|
||||
|
||||
connectCallback = null;
|
||||
closeCallback = null;
|
||||
sendCallback = null;
|
||||
onOpenCallback = null;
|
||||
onMessageCallback = null;
|
||||
onCloseCallback = null;
|
||||
onErrorCallback = null;
|
||||
|
||||
WebSocketInterceptor._unregisterEvents();
|
||||
},
|
||||
};
|
||||
|
||||
module.exports = WebSocketInterceptor;
|
||||
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