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vsx-extension-resolver.ts
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vsx-extension-resolver.ts
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// *****************************************************************************
// Copyright (C) 2020 TypeFox and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// http://www.eclipse.org/legal/epl-2.0.
//
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License v. 2.0 are satisfied: GNU General Public License, version 2
// with the GNU Classpath Exception which is available at
// https://www.gnu.org/software/classpath/license.html.
//
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0
// *****************************************************************************
import * as path from 'path';
import * as semver from 'semver';
import * as fs from '@theia/core/shared/fs-extra';
import { injectable, inject } from '@theia/core/shared/inversify';
import URI from '@theia/core/lib/common/uri';
import { PluginDeployerHandler, PluginDeployerResolver, PluginDeployerResolverContext, PluginDeployOptions, PluginIdentifiers } from '@theia/plugin-ext/lib/common/plugin-protocol';
import { FileUri } from '@theia/core/lib/node';
import { VSCodeExtensionUri } from '@theia/plugin-ext-vscode/lib/common/plugin-vscode-uri';
import { OVSXClientProvider } from '../common/ovsx-client-provider';
import { OVSXApiFilter, VSXExtensionRaw } from '@theia/ovsx-client';
import { RequestService } from '@theia/core/shared/@theia/request';
import { PluginVSCodeEnvironment } from '@theia/plugin-ext-vscode/lib/common/plugin-vscode-environment';
import { PluginUninstallationManager } from '@theia/plugin-ext/lib/main/node/plugin-uninstallation-manager';
@injectable()
export class VSXExtensionResolver implements PluginDeployerResolver {
@inject(OVSXClientProvider) protected clientProvider: OVSXClientProvider;
@inject(PluginDeployerHandler) protected pluginDeployerHandler: PluginDeployerHandler;
@inject(RequestService) protected requestService: RequestService;
@inject(PluginVSCodeEnvironment) protected readonly environment: PluginVSCodeEnvironment;
@inject(PluginUninstallationManager) protected readonly uninstallationManager: PluginUninstallationManager;
@inject(OVSXApiFilter) protected vsxApiFilter: OVSXApiFilter;
accept(pluginId: string): boolean {
return !!VSCodeExtensionUri.toId(new URI(pluginId));
}
static readonly TEMP_DIR_PREFIX = 'vscode-download';
async resolve(context: PluginDeployerResolverContext, options?: PluginDeployOptions): Promise<void> {
const id = VSCodeExtensionUri.toId(new URI(context.getOriginId()));
if (!id) {
return;
}
let extension: VSXExtensionRaw | undefined;
const client = await this.clientProvider();
const version = options?.version || id.version;
if (version) {
console.log(`[${id}]: trying to resolve version ${version}...`);
const { extensions } = await client.query({ extensionId: id.id, extensionVersion: version, includeAllVersions: true });
extension = extensions[0];
} else {
console.log(`[${id}]: trying to resolve latest version...`);
const { extensions } = await client.query({ extensionId: id.id, includeAllVersions: true });
extension = this.vsxApiFilter.getLatestCompatibleExtension(extensions);
}
if (!extension) {
return;
}
if (extension.error) {
throw new Error(extension.error);
}
const resolvedId = id.id + '-' + extension.version;
const downloadUrl = extension.files.download;
console.log(`[${id.id}]: resolved to '${resolvedId}'`);
if (!options?.ignoreOtherVersions) {
const existingVersion = this.hasSameOrNewerVersion(id.id, extension);
if (existingVersion) {
console.log(`[${id}]: is already installed with the same or newer version '${existingVersion}'`);
return;
}
}
const downloadDir = await this.getTempDir();
await fs.ensureDir(downloadDir);
const downloadedExtensionPath = path.resolve(downloadDir, path.basename(downloadUrl));
console.log(`[${resolvedId}]: trying to download from "${downloadUrl}"...`, 'to path', downloadDir);
if (!await this.download(downloadUrl, downloadedExtensionPath)) {
console.log(`[${resolvedId}]: not found`);
return;
}
console.log(`[${resolvedId}]: downloaded to ${downloadedExtensionPath}"`);
context.addPlugin(resolvedId, downloadedExtensionPath);
}
protected async getTempDir(): Promise<string> {
const tempDir = FileUri.fsPath(await this.environment.getTempDirUri(VSXExtensionResolver.TEMP_DIR_PREFIX));
if (!await fs.pathExists(tempDir)) {
await fs.mkdirs(tempDir);
}
return tempDir;
}
protected hasSameOrNewerVersion(id: string, extension: VSXExtensionRaw): string | undefined {
const existingPlugins = this.pluginDeployerHandler.getDeployedPluginsById(id)
.filter(plugin => !this.uninstallationManager.isUninstalled(PluginIdentifiers.componentsToVersionedId(plugin.metadata.model)));
const sufficientVersion = existingPlugins.find(existingPlugin => {
const existingVersion = semver.clean(existingPlugin.metadata.model.version);
const desiredVersion = semver.clean(extension.version);
if (desiredVersion && existingVersion && semver.gte(existingVersion, desiredVersion)) {
return existingVersion;
}
});
return sufficientVersion?.metadata.model.version;
}
protected async download(downloadUrl: string, downloadPath: string): Promise<boolean> {
if (await fs.pathExists(downloadPath)) { return true; }
const context = await this.requestService.request({ url: downloadUrl });
if (context.res.statusCode === 404) {
return false;
} else if (context.res.statusCode !== 200) {
throw new Error('Request returned status code: ' + context.res.statusCode);
} else {
await fs.writeFile(downloadPath, context.buffer);
return true;
}
}
}