86 lines
3.2 KiB
TypeScript

/**
* Copyright (c) Microsoft Corporation.
*
* 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 fs from 'fs';
import path from 'path';
import { assert } from '../utils/isomorphic/assert';
import { mime } from '../utilsBundle';
import type { WritableStreamDispatcher } from './dispatchers/writableStreamDispatcher';
import type { InputFilesItems } from './dom';
import type { Frame } from './frames';
import type * as types from './types';
import type * as channels from '@protocol/channels';
// Keep in sync with the client.
export const fileUploadSizeLimit = 50 * 1024 * 1024;
async function filesExceedUploadLimit(files: string[]) {
const sizes = await Promise.all(files.map(async file => (await fs.promises.stat(file)).size));
return sizes.reduce((total, size) => total + size, 0) >= fileUploadSizeLimit;
}
export async function prepareFilesForUpload(frame: Frame, params: channels.ElementHandleSetInputFilesParams): Promise<InputFilesItems> {
const { payloads, streams, directoryStream } = params;
let { localPaths, localDirectory } = params;
if ([payloads, localPaths, localDirectory, streams, directoryStream].filter(Boolean).length !== 1)
throw new Error('Exactly one of payloads, localPaths and streams must be provided');
if (streams)
localPaths = streams.map(c => (c as WritableStreamDispatcher).path());
if (directoryStream)
localDirectory = (directoryStream as WritableStreamDispatcher).path();
if (localPaths) {
for (const p of localPaths)
assert(path.isAbsolute(p) && path.resolve(p) === p, 'Paths provided to localPaths must be absolute and fully resolved.');
}
let fileBuffers: {
name: string,
mimeType?: string,
buffer: Buffer,
lastModifiedMs?: number,
}[] | undefined = payloads;
if (!frame._page.browserContext._browser._isCollocatedWithServer) {
// If the browser is on a different machine read files into buffers.
if (localPaths) {
if (await filesExceedUploadLimit(localPaths))
throw new Error('Cannot transfer files larger than 50Mb to a browser not co-located with the server');
fileBuffers = await Promise.all(localPaths.map(async item => {
return {
name: path.basename(item),
buffer: await fs.promises.readFile(item),
lastModifiedMs: (await fs.promises.stat(item)).mtimeMs,
};
}));
localPaths = undefined;
}
}
const filePayloads: types.FilePayload[] | undefined = fileBuffers?.map(payload => ({
name: payload.name,
mimeType: payload.mimeType || mime.getType(payload.name) || 'application/octet-stream',
buffer: payload.buffer.toString('base64'),
lastModifiedMs: payload.lastModifiedMs
}));
return { localPaths, localDirectory, filePayloads };
}