mirror of
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103 lines
3.2 KiB
TypeScript
103 lines
3.2 KiB
TypeScript
/**
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* Copyright (c) Microsoft Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import * as path from 'path';
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import * as fs from 'fs';
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import * as util from 'util';
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import { Page } from './page';
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import { Events } from './events';
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import { Readable } from 'stream';
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import { assert } from './helper';
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export class Download {
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private _downloadsPath: string;
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private _uuid: string;
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private _finishedCallback: () => void;
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private _finishedPromise: Promise<void>;
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private _page: Page;
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private _acceptDownloads: boolean;
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private _failure: string | null = null;
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private _deleted = false;
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private _url: string;
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private _suggestedFilename: string | undefined;
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constructor(page: Page, downloadsPath: string, uuid: string, url: string, suggestedFilename?: string) {
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this._page = page;
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this._downloadsPath = downloadsPath;
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this._uuid = uuid;
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this._url = url;
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this._suggestedFilename = suggestedFilename;
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this._finishedCallback = () => {};
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this._finishedPromise = new Promise(f => this._finishedCallback = f);
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page._browserContext._downloads.add(this);
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this._acceptDownloads = !!this._page._browserContext._options.acceptDownloads;
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if (suggestedFilename !== undefined)
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this._page.emit(Events.Page.Download, this);
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}
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_filenameSuggested(suggestedFilename: string) {
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assert(this._suggestedFilename === undefined);
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this._suggestedFilename = suggestedFilename;
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this._page.emit(Events.Page.Download, this);
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}
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url(): string {
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return this._url;
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}
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suggestedFilename(): string {
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return this._suggestedFilename!;
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}
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async path(): Promise<string | null> {
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if (!this._acceptDownloads)
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throw new Error('Pass { acceptDownloads: true } when you are creating your browser context.');
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const fileName = path.join(this._downloadsPath, this._uuid);
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await this._finishedPromise;
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if (this._failure)
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return null;
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return fileName;
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}
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async failure(): Promise<string | null> {
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if (!this._acceptDownloads)
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return 'Pass { acceptDownloads: true } when you are creating your browser context.';
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await this._finishedPromise;
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return this._failure;
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}
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async createReadStream(): Promise<Readable | null> {
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const fileName = await this.path();
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return fileName ? fs.createReadStream(fileName) : null;
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}
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async delete(): Promise<void> {
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if (!this._acceptDownloads)
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return;
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const fileName = await this.path();
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if (this._deleted)
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return;
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this._deleted = true;
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if (fileName)
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await util.promisify(fs.unlink)(fileName).catch(e => {});
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}
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_reportFinished(error?: string) {
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this._failure = error || null;
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this._finishedCallback();
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}
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}
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