Files
flipper/desktop/plugins/network/index.tsx
bizzguy f806ee41d7 Network plugin - fix issue with responses with empty body (#1776)
Summary:
The Network Plugin does not properly handle network requests that return an empty body (because of the body actually being empty or because the network call returns something like a 404 status).

Also, the creation of mocks using the "Copy Highlighted" command when the original response returns an empty body is not handled properly.

## Fix

The Android plugin now returns a response when the body length is 0.

The client plugin creates a body containing an empty string instead of null when the body is empty.

## Changelog

Fix problem in Network Plugin when original call or mock has an empty body in the response.

Pull Request resolved: https://github.com/facebook/flipper/pull/1776

Test Plan:
The following screen output for the Network Plugin shows that the call is now being handled correctly.  The fields for "status", "size" and "duration" are now populated.

Also, the mock calls are properly defined and shown in yellow.

![image](https://user-images.githubusercontent.com/337874/102738969-5edd5280-4311-11eb-9b46-33a57a50e334.png)

Reviewed By: mweststrate

Differential Revision: D25804212

Pulled By: passy

fbshipit-source-id: b31cc87619c604b4df76e05bca5c86554a1cabff
2021-01-07 04:15:18 -08:00

958 lines
26 KiB
TypeScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
*/
import {padStart} from 'lodash';
import React, {createContext} from 'react';
import {MenuItemConstructorOptions} from 'electron';
import {
ContextMenu,
FlexColumn,
FlexRow,
Button,
Text,
Glyph,
colors,
PureComponent,
DetailSidebar,
styled,
SearchableTable,
Sheet,
TableHighlightedRows,
TableRows,
TableBodyRow,
produce,
} from 'flipper';
import {
Request,
RequestId,
Response,
Route,
ResponseFollowupChunk,
Header,
MockRoute,
} from './types';
import {convertRequestToCurlCommand, getHeaderValue, decodeBody} from './utils';
import RequestDetails from './RequestDetails';
import {clipboard} from 'electron';
import {URL} from 'url';
import {MockResponseDialog} from './MockResponseDialog';
import {combineBase64Chunks} from './chunks';
import {PluginClient, createState, usePlugin, useValue} from 'flipper-plugin';
const LOCALSTORAGE_MOCK_ROUTE_LIST_KEY = '__NETWORK_CACHED_MOCK_ROUTE_LIST';
export const BodyOptions = {
formatted: 'formatted',
parsed: 'parsed',
};
type Events = {
newRequest: Request;
newResponse: Response;
partialResponse: Response | ResponseFollowupChunk;
};
type Methods = {
mockResponses(params: {routes: MockRoute[]}): Promise<void>;
};
const COLUMN_SIZE = {
requestTimestamp: 100,
responseTimestamp: 100,
domain: 'flex',
method: 100,
status: 70,
size: 100,
duration: 100,
};
const COLUMN_ORDER = [
{key: 'requestTimestamp', visible: true},
{key: 'responseTimestamp', visible: false},
{key: 'domain', visible: true},
{key: 'method', visible: true},
{key: 'status', visible: true},
{key: 'size', visible: true},
{key: 'duration', visible: true},
];
const COLUMNS = {
requestTimestamp: {value: 'Request Time'},
responseTimestamp: {value: 'Response Time'},
domain: {value: 'Domain'},
method: {value: 'Method'},
status: {value: 'Status'},
size: {value: 'Size'},
duration: {value: 'Duration'},
};
const mockingStyle = {
backgroundColor: colors.yellowTint,
color: colors.yellow,
fontWeight: 500,
};
export function formatBytes(count: number): string {
if (count > 1024 * 1024) {
return (count / (1024.0 * 1024)).toFixed(1) + ' MB';
}
if (count > 1024) {
return (count / 1024.0).toFixed(1) + ' kB';
}
return count + ' B';
}
const TextEllipsis = styled(Text)({
overflowX: 'hidden',
textOverflow: 'ellipsis',
maxWidth: '100%',
lineHeight: '18px',
paddingTop: 4,
});
// State management
export interface NetworkRouteManager {
addRoute(): void;
modifyRoute(id: string, routeChange: Partial<Route>): void;
removeRoute(id: string): void;
copyHighlightedCalls(
highlightedRows: Set<string>,
requests: {[id: string]: Request},
responses: {[id: string]: Response},
): void;
}
const nullNetworkRouteManager: NetworkRouteManager = {
addRoute() {},
modifyRoute(_id: string, _routeChange: Partial<Route>) {},
removeRoute(_id: string) {},
copyHighlightedCalls(
_highlightedRows: Set<string>,
_requests: {[id: string]: Request},
_responses: {[id: string]: Response},
) {},
};
export const NetworkRouteContext = createContext<NetworkRouteManager>(
nullNetworkRouteManager,
);
export function plugin(client: PluginClient<Events, Methods>) {
const networkRouteManager = createState<NetworkRouteManager>(
nullNetworkRouteManager,
);
const selectedIds = createState<Array<RequestId>>([]);
const searchTerm = createState<string>('');
const routes = createState<{[id: string]: Route}>({});
const nextRouteId = createState<number>(0);
const isMockResponseSupported = createState<boolean>(false);
const showMockResponseDialog = createState<boolean>(false);
const detailBodyFormat = createState<string>(BodyOptions.parsed);
const highlightedRows = createState<Set<string> | null | undefined>(
new Set(),
);
const isDeeplinked = createState<boolean>(false);
const requests = createState<{[id: string]: Request}>(
{},
{persist: 'requests'},
);
const responses = createState<{[id: string]: Response}>(
{},
{persist: 'responses'},
);
const partialResponses = createState<{
[id: string]: {
initialResponse?: Response;
followupChunks: {[id: number]: string};
};
}>({}, {persist: 'partialResponses'});
client.onDeepLink((payload: unknown) => {
if (typeof payload === 'string') {
parseDeepLinkPayload(payload);
isDeeplinked.set(true);
}
});
client.addMenuEntry({
action: 'clear',
handler: clearLogs,
});
client.onConnect(() => {
init();
});
client.onDeactivate(() => {
isDeeplinked.set(false);
});
client.onMessage('newRequest', (data) => {
requests.update((draft) => {
draft[data.id] = data;
});
});
client.onMessage('newResponse', (data) => {
responses.update((draft) => {
draft[data.id] = data;
});
});
client.onMessage('partialResponse', (data) => {
/* Some clients (such as low end Android devices) struggle to serialise large payloads in one go, so partial responses allow them
to split payloads into chunks and serialise each individually.
Such responses will be distinguished between normal responses by both:
* Being sent to the partialResponse method.
* Having a totalChunks value > 1.
The first chunk will always be included in the initial response. This response must have index 0.
The remaining chunks will be sent in ResponseFollowupChunks, which each contain another piece of the payload, along with their index from 1 onwards.
The payload of each chunk is individually encoded in the same way that full responses are.
The order that initialResponse, and followup chunks are recieved is not guaranteed to be in index order.
*/
const message: Response | ResponseFollowupChunk = data as
| Response
| ResponseFollowupChunk;
if (message.index !== undefined && message.index > 0) {
// It's a follow up chunk
const followupChunk: ResponseFollowupChunk = message as ResponseFollowupChunk;
const partialResponseEntry = partialResponses.get()[followupChunk.id] ?? {
followupChunks: {},
};
const newPartialResponseEntry = produce(partialResponseEntry, (draft) => {
draft.followupChunks[followupChunk.index] = followupChunk.data;
});
const newPartialResponse = {
...partialResponses.get(),
[followupChunk.id]: newPartialResponseEntry,
};
assembleChunksIfResponseIsComplete(newPartialResponse, followupChunk.id);
return;
}
// It's an initial chunk
const partialResponse: Response = message as Response;
const partialResponseEntry = partialResponses.get()[partialResponse.id] ?? {
followupChunks: {},
};
const newPartialResponseEntry = {
...partialResponseEntry,
initialResponse: partialResponse,
};
const newPartialResponse = {
...partialResponses.get(),
[partialResponse.id]: newPartialResponseEntry,
};
assembleChunksIfResponseIsComplete(newPartialResponse, partialResponse.id);
});
function assembleChunksIfResponseIsComplete(
partialResp: {
[id: string]: {
initialResponse?: Response;
followupChunks: {[id: number]: string};
};
},
responseId: string,
) {
const partialResponseEntry = partialResp[responseId];
const numChunks = partialResponseEntry.initialResponse?.totalChunks;
if (
!partialResponseEntry.initialResponse ||
!numChunks ||
Object.keys(partialResponseEntry.followupChunks).length + 1 < numChunks
) {
// Partial response not yet complete, do nothing.
partialResponses.set(partialResp);
return;
}
// Partial response has all required chunks, convert it to a full Response.
const response: Response = partialResponseEntry.initialResponse;
const allChunks: string[] =
response.data != null
? [
response.data,
...Object.entries(partialResponseEntry.followupChunks)
// It's important to parseInt here or it sorts lexicographically
.sort((a, b) => parseInt(a[0], 10) - parseInt(b[0], 10))
.map(([_k, v]: [string, string]) => v),
]
: [];
const data = combineBase64Chunks(allChunks);
const newResponse = {
...response,
// Currently data is always decoded at render time, so re-encode it to match the single response format.
data: btoa(data),
};
responses.update((draft) => {
draft[newResponse.id] = newResponse;
});
partialResponses.update((draft) => {
delete draft[newResponse.id];
});
}
function init() {
client.supportsMethod('mockResponses').then((result) => {
const newRoutes = JSON.parse(
localStorage.getItem(LOCALSTORAGE_MOCK_ROUTE_LIST_KEY) || '{}',
);
routes.set(newRoutes);
isMockResponseSupported.set(result);
showMockResponseDialog.set(false);
nextRouteId.set(Object.keys(routes).length);
informClientMockChange(routes.get());
});
// declare new variable to be called inside the interface
networkRouteManager.set({
addRoute() {
const newNextRouteId = nextRouteId.get();
routes.update((draft) => {
draft[newNextRouteId.toString()] = {
requestUrl: '',
requestMethod: 'GET',
responseData: '',
responseHeaders: {},
responseStatus: '200',
};
});
nextRouteId.set(newNextRouteId + 1);
},
modifyRoute(id: string, routeChange: Partial<Route>) {
if (!routes.get().hasOwnProperty(id)) {
return;
}
routes.update((draft) => {
Object.assign(draft[id], routeChange);
});
informClientMockChange(routes.get());
},
removeRoute(id: string) {
if (routes.get().hasOwnProperty(id)) {
routes.update((draft) => {
delete draft[id];
});
}
informClientMockChange(routes.get());
},
copyHighlightedCalls(
highlightedRows: Set<string> | null | undefined,
requests: {[id: string]: Request},
responses: {[id: string]: Response},
) {
// iterate through highlighted rows
highlightedRows?.forEach((row) => {
const response = responses[row];
// convert headers
const headers: {[id: string]: Header} = {};
response.headers.forEach((e) => {
headers[e.key] = e;
});
// convert data TODO: we only want this for non-binary data! See D23403095
const responseData =
response && response.data ? decodeBody(response) : '';
const newNextRouteId = nextRouteId.get();
routes.update((draft) => {
draft[newNextRouteId.toString()] = {
requestUrl: requests[row].url,
requestMethod: requests[row].method,
responseData: responseData as string,
responseHeaders: headers,
responseStatus: responses[row].status.toString(),
};
});
nextRouteId.set(newNextRouteId + 1);
});
informClientMockChange(routes.get());
},
});
}
function parseDeepLinkPayload(deepLinkPayload: unknown) {
const searchTermDelim = 'searchTerm=';
if (typeof deepLinkPayload !== 'string') {
selectedIds.set([]);
searchTerm.set('');
} else if (deepLinkPayload.startsWith(searchTermDelim)) {
selectedIds.set([]);
searchTerm.set(deepLinkPayload.slice(searchTermDelim.length));
} else {
selectedIds.set([deepLinkPayload]);
searchTerm.set('');
}
}
function clearLogs() {
selectedIds.set([]);
responses.set({});
requests.set({});
}
function copyRequestCurlCommand() {
// Ensure there is only one row highlighted.
if (selectedIds.get().length !== 1) {
return;
}
const request = requests.get()[selectedIds.get()[0]];
if (!request) {
return;
}
const command = convertRequestToCurlCommand(request);
clipboard.writeText(command);
}
async function informClientMockChange(routes: {[id: string]: Route}) {
const existedIdSet: {[id: string]: {[method: string]: boolean}} = {};
const filteredRoutes: {[id: string]: Route} = Object.entries(routes).reduce(
(accRoutes, [id, route]) => {
if (existedIdSet.hasOwnProperty(route.requestUrl)) {
if (
existedIdSet[route.requestUrl].hasOwnProperty(route.requestMethod)
) {
return accRoutes;
}
existedIdSet[route.requestUrl] = {
...existedIdSet[route.requestUrl],
[route.requestMethod]: true,
};
return Object.assign({[id]: route}, accRoutes);
} else {
existedIdSet[route.requestUrl] = {
[route.requestMethod]: true,
};
return Object.assign({[id]: route}, accRoutes);
}
},
{},
);
if (isMockResponseSupported.get()) {
const routesValuesArray = Object.values(filteredRoutes);
localStorage.setItem(
LOCALSTORAGE_MOCK_ROUTE_LIST_KEY,
JSON.stringify(routesValuesArray),
);
try {
await client.send('mockResponses', {
routes: routesValuesArray.map((route: Route) => ({
requestUrl: route.requestUrl,
method: route.requestMethod,
data: route.responseData,
headers: [...Object.values(route.responseHeaders)],
status: route.responseStatus,
})),
});
} catch (e) {
console.error('Failed to mock responses.', e);
}
}
}
return {
selectedIds,
searchTerm,
routes,
nextRouteId,
isMockResponseSupported,
showMockResponseDialog,
detailBodyFormat,
highlightedRows,
isDeeplinked,
requests,
responses,
partialResponses,
networkRouteManager,
clearLogs,
onRowHighlighted(selectedIdsArr: Array<RequestId>) {
selectedIds.set(selectedIdsArr);
},
onMockButtonPressed() {
showMockResponseDialog.set(true);
},
onCloseButtonPressed() {
showMockResponseDialog.set(false);
},
onSelectFormat(bodyFormat: string) {
detailBodyFormat.set(bodyFormat);
},
copyRequestCurlCommand,
init,
};
}
export function Component() {
const instance = usePlugin(plugin);
const requests = useValue(instance.requests);
const responses = useValue(instance.responses);
const selectedIds = useValue(instance.selectedIds);
const searchTerm = useValue(instance.searchTerm);
const routes = useValue(instance.routes);
const isMockResponseSupported = useValue(instance.isMockResponseSupported);
const showMockResponseDialog = useValue(instance.showMockResponseDialog);
const networkRouteManager = useValue(instance.networkRouteManager);
return (
<FlexColumn grow={true}>
<NetworkRouteContext.Provider value={networkRouteManager}>
<NetworkTable
requests={requests || {}}
responses={responses || {}}
routes={routes}
onMockButtonPressed={instance.onMockButtonPressed}
onCloseButtonPressed={instance.onCloseButtonPressed}
showMockResponseDialog={showMockResponseDialog}
clear={instance.clearLogs}
copyRequestCurlCommand={instance.copyRequestCurlCommand}
onRowHighlighted={instance.onRowHighlighted}
highlightedRows={selectedIds ? new Set(selectedIds) : null}
searchTerm={searchTerm}
isMockResponseSupported={isMockResponseSupported}
/>
<Sidebar />
</NetworkRouteContext.Provider>
</FlexColumn>
);
}
type NetworkTableProps = {
requests: {[id: string]: Request};
responses: {[id: string]: Response};
routes: {[id: string]: Route};
clear: () => void;
copyRequestCurlCommand: () => void;
onRowHighlighted: (keys: TableHighlightedRows) => void;
highlightedRows: Set<string> | null | undefined;
searchTerm: string;
onMockButtonPressed: () => void;
onCloseButtonPressed: () => void;
showMockResponseDialog: boolean;
isMockResponseSupported: boolean;
};
type NetworkTableState = {
sortedRows: TableRows;
routes: {[id: string]: Route};
highlightedRows: Set<string> | null | undefined;
requests: {[id: string]: Request};
responses: {[id: string]: Response};
};
function formatTimestamp(timestamp: number): string {
const date = new Date(timestamp);
return `${padStart(date.getHours().toString(), 2, '0')}:${padStart(
date.getMinutes().toString(),
2,
'0',
)}:${padStart(date.getSeconds().toString(), 2, '0')}.${padStart(
date.getMilliseconds().toString(),
3,
'0',
)}`;
}
function buildRow(
request: Request,
response: Response | null | undefined,
): TableBodyRow | null | undefined {
if (request == null) {
return null;
}
if (request.url == null) {
return null;
}
let url: URL | undefined = undefined;
try {
url = new URL(request.url);
} catch (e) {
console.warn(`Failed to parse url: '${request.url}'`, e);
}
const domain = url ? url.host + url.pathname : '<unknown>';
const friendlyName = getHeaderValue(request.headers, 'X-FB-Friendly-Name');
const style = response && response.isMock ? mockingStyle : undefined;
const copyText = () => {
let copyText = `# HTTP request for ${domain} (ID: ${request.id})
## Request
HTTP ${request.method} ${request.url}
${request.headers
.map(
({key, value}: {key: string; value: string}): string =>
`${key}: ${String(value)}`,
)
.join('\n')}`;
// TODO: we want decoding only for non-binary data! See D23403095
const requestData = request.data ? decodeBody(request) : null;
const responseData =
response && response.data ? decodeBody(response) : null;
if (requestData) {
copyText += `\n\n${requestData}`;
}
if (response) {
copyText += `
## Response
HTTP ${response.status} ${response.reason}
${response.headers
.map(
({key, value}: {key: string; value: string}): string =>
`${key}: ${String(value)}`,
)
.join('\n')}`;
}
if (responseData) {
copyText += `\n\n${responseData}`;
}
return copyText;
};
return {
columns: {
requestTimestamp: {
value: (
<TextEllipsis>{formatTimestamp(request.timestamp)}</TextEllipsis>
),
},
responseTimestamp: {
value: (
<TextEllipsis>
{response && formatTimestamp(response.timestamp)}
</TextEllipsis>
),
},
domain: {
value: (
<TextEllipsis>{friendlyName ? friendlyName : domain}</TextEllipsis>
),
isFilterable: true,
},
method: {
value: <TextEllipsis>{request.method}</TextEllipsis>,
isFilterable: true,
},
status: {
value: (
<StatusColumn>{response ? response.status : undefined}</StatusColumn>
),
isFilterable: true,
},
size: {
value: <SizeColumn response={response ? response : undefined} />,
},
duration: {
value: <DurationColumn request={request} response={response} />,
},
},
key: request.id,
filterValue: `${request.method} ${request.url}`,
sortKey: request.timestamp,
copyText,
getSearchContent: copyText,
highlightOnHover: true,
style: style,
};
}
function calculateState(
props: {
requests: {[id: string]: Request};
responses: {[id: string]: Response};
},
nextProps: NetworkTableProps,
rows: TableRows = [],
): NetworkTableState {
rows = [...rows];
if (Object.keys(nextProps.requests).length === 0) {
// cleared
rows = [];
} else if (props.requests !== nextProps.requests) {
// new request
for (const [requestId, request] of Object.entries(nextProps.requests)) {
if (props.requests[requestId] == null) {
const newRow = buildRow(request, nextProps.responses[requestId]);
if (newRow) {
rows.push(newRow);
}
}
}
}
if (props.responses !== nextProps.responses) {
// new or updated response
const resIds = Object.keys(nextProps.responses).filter(
(responseId: RequestId) =>
props.responses[responseId] !== nextProps.responses[responseId],
);
for (const resId of resIds) {
if (resId) {
const request = nextProps.requests[resId];
// sanity check; to pass null check
if (request) {
const newRow = buildRow(request, nextProps.responses[resId]);
const index = rows.findIndex(
(r: TableBodyRow) => r.key === request.id,
);
if (index > -1 && newRow) {
rows[index] = newRow;
}
}
}
}
}
rows.sort(
(a: TableBodyRow, b: TableBodyRow) =>
(a.sortKey as number) - (b.sortKey as number),
);
return {
sortedRows: rows,
routes: nextProps.routes,
highlightedRows: nextProps.highlightedRows,
requests: props.requests,
responses: props.responses,
};
}
function Sidebar() {
const instance = usePlugin(plugin);
const requests = useValue(instance.requests);
const responses = useValue(instance.responses);
const selectedIds = useValue(instance.selectedIds);
const detailBodyFormat = useValue(instance.detailBodyFormat);
const selectedId = selectedIds.length === 1 ? selectedIds[0] : null;
if (!selectedId) {
return null;
}
const requestWithId = requests[selectedId];
if (!requestWithId) {
return null;
}
return (
<DetailSidebar width={500}>
<RequestDetails
key={selectedId}
request={requestWithId}
response={responses[selectedId]}
bodyFormat={detailBodyFormat}
onSelectFormat={instance.onSelectFormat}
/>
</DetailSidebar>
);
}
class NetworkTable extends PureComponent<NetworkTableProps, NetworkTableState> {
static ContextMenu = styled(ContextMenu)({
flex: 1,
});
constructor(props: NetworkTableProps) {
super(props);
this.state = calculateState({requests: {}, responses: {}}, props);
}
UNSAFE_componentWillReceiveProps(nextProps: NetworkTableProps) {
this.setState(calculateState(this.props, nextProps, this.state.sortedRows));
}
contextMenuItems(): Array<MenuItemConstructorOptions> {
type ContextMenuType =
| 'normal'
| 'separator'
| 'submenu'
| 'checkbox'
| 'radio';
const separator: ContextMenuType = 'separator';
const {clear, copyRequestCurlCommand, highlightedRows} = this.props;
const highlightedMenuItems =
highlightedRows && highlightedRows.size === 1
? [
{
type: separator,
},
{
label: 'Copy as cURL',
click: copyRequestCurlCommand,
},
]
: [];
return highlightedMenuItems.concat([
{
type: separator,
},
{
label: 'Clear all',
click: clear,
},
]);
}
render() {
return (
<>
<NetworkTable.ContextMenu
items={this.contextMenuItems()}
component={FlexColumn}>
<SearchableTable
virtual={true}
multiline={false}
multiHighlight={true}
stickyBottom={true}
floating={false}
columnSizes={COLUMN_SIZE}
columns={COLUMNS}
columnOrder={COLUMN_ORDER}
rows={this.state.sortedRows}
onRowHighlighted={this.props.onRowHighlighted}
highlightedRows={this.props.highlightedRows}
rowLineHeight={26}
allowRegexSearch={true}
allowContentSearch={true}
zebra={false}
clearSearchTerm={this.props.searchTerm !== ''}
defaultSearchTerm={this.props.searchTerm}
actions={
<FlexRow>
<Button onClick={this.props.clear}>Clear Table</Button>
{this.props.isMockResponseSupported && (
<Button onClick={this.props.onMockButtonPressed}>Mock</Button>
)}
</FlexRow>
}
/>
</NetworkTable.ContextMenu>
{this.props.showMockResponseDialog ? (
<Sheet>
{(onHide) => (
<MockResponseDialog
routes={this.state.routes}
onHide={() => {
onHide();
this.props.onCloseButtonPressed();
}}
highlightedRows={this.state.highlightedRows}
requests={this.state.requests}
responses={this.state.responses}
/>
)}
</Sheet>
) : null}
</>
);
}
}
const Icon = styled(Glyph)({
marginTop: -3,
marginRight: 3,
});
class StatusColumn extends PureComponent<{
children?: number;
}> {
render() {
const {children} = this.props;
let glyph;
if (children != null && children >= 400 && children < 600) {
glyph = <Icon name="stop" color={colors.red} />;
}
return (
<TextEllipsis>
{glyph}
{children}
</TextEllipsis>
);
}
}
class DurationColumn extends PureComponent<{
request: Request;
response: Response | null | undefined;
}> {
static Text = styled(Text)({
flex: 1,
textAlign: 'right',
paddingRight: 10,
});
render() {
const {request, response} = this.props;
const duration = response
? response.timestamp - request.timestamp
: undefined;
return (
<DurationColumn.Text selectable={false}>
{duration != null ? duration.toLocaleString() + 'ms' : ''}
</DurationColumn.Text>
);
}
}
class SizeColumn extends PureComponent<{
response: Response | null | undefined;
}> {
static Text = styled(Text)({
flex: 1,
textAlign: 'right',
paddingRight: 10,
});
render() {
const {response} = this.props;
if (response) {
const text = formatBytes(this.getResponseLength(response));
return <SizeColumn.Text>{text}</SizeColumn.Text>;
} else {
return null;
}
}
getResponseLength(response: Response | null | undefined) {
if (!response) {
return 0;
}
let length = 0;
const lengthString = response.headers
? getHeaderValue(response.headers, 'content-length')
: undefined;
if (lengthString != null && lengthString != '') {
length = parseInt(lengthString, 10);
} else if (response.data) {
length = Buffer.byteLength(response.data, 'base64');
}
return length;
}
}