feat: add @actions/cache

node_modules/@azure/ms-rest-js/lib/policies/proxyPolicy.ts

@@ -0,0 +1,168 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+import {
+  BaseRequestPolicy,
+  RequestPolicy,
+  RequestPolicyFactory,
+  RequestPolicyOptionsLike,
+} from "./requestPolicy";
+import { HttpOperationResponse } from "../httpOperationResponse";
+import { ProxySettings } from "../serviceClient";
+import { WebResourceLike } from "../webResource";
+import { Constants } from "../util/constants";
+import { URLBuilder } from "../url";
+
+/**
+ * @internal
+ */
+export const noProxyList: string[] = loadNoProxy();
+const byPassedList: Map<string, boolean> = new Map();
+
+/**
+ * @internal
+ */
+export function getEnvironmentValue(name: string): string | undefined {
+  if (process.env[name]) {
+    return process.env[name];
+  } else if (process.env[name.toLowerCase()]) {
+    return process.env[name.toLowerCase()];
+  }
+  return undefined;
+}
+
+function loadEnvironmentProxyValue(): string | undefined {
+  if (!process) {
+    return undefined;
+  }
+
+  const httpsProxy = getEnvironmentValue(Constants.HTTPS_PROXY);
+  const allProxy = getEnvironmentValue(Constants.ALL_PROXY);
+  const httpProxy = getEnvironmentValue(Constants.HTTP_PROXY);
+
+  return httpsProxy || allProxy || httpProxy;
+}
+
+// Check whether the host of a given `uri` is in the noProxyList.
+// If there's a match, any request sent to the same host won't have the proxy settings set.
+// This implementation is a port of https://github.com/Azure/azure-sdk-for-net/blob/8cca811371159e527159c7eb65602477898683e2/sdk/core/Azure.Core/src/Pipeline/Internal/HttpEnvironmentProxy.cs#L210
+function isBypassed(uri: string): boolean | undefined {
+  if (noProxyList.length === 0) {
+    return false;
+  }
+  const host = URLBuilder.parse(uri).getHost()!;
+  if (byPassedList.has(host)) {
+    return byPassedList.get(host);
+  }
+  let isBypassedFlag = false;
+  for (const pattern of noProxyList) {
+    if (pattern[0] === ".") {
+      // This should match either domain it self or any subdomain or host
+      // .foo.com will match foo.com it self or *.foo.com
+      if (host.endsWith(pattern)) {
+        isBypassedFlag = true;
+      } else {
+        if (host.length === pattern.length - 1 && host === pattern.slice(1)) {
+          isBypassedFlag = true;
+        }
+      }
+    } else {
+      if (host === pattern) {
+        isBypassedFlag = true;
+      }
+    }
+  }
+  byPassedList.set(host, isBypassedFlag);
+  return isBypassedFlag;
+}
+
+/**
+ * @internal
+ */
+export function loadNoProxy(): string[] {
+  const noProxy = getEnvironmentValue(Constants.NO_PROXY);
+  if (noProxy) {
+    return noProxy
+      .split(",")
+      .map((item) => item.trim())
+      .filter((item) => item.length);
+  }
+
+  return [];
+}
+
+/**
+ * @internal
+ */
+function extractAuthFromUrl(
+  url: string
+): { username?: string; password?: string; urlWithoutAuth: string } {
+  const atIndex = url.indexOf("@");
+  if (atIndex === -1) {
+    return { urlWithoutAuth: url };
+  }
+
+  const schemeIndex = url.indexOf("://");
+  const authStart = schemeIndex !== -1 ? schemeIndex + 3 : 0;
+  const auth = url.substring(authStart, atIndex);
+  const colonIndex = auth.indexOf(":");
+  const hasPassword = colonIndex !== -1;
+  const username = hasPassword ? auth.substring(0, colonIndex) : auth;
+  const password = hasPassword ? auth.substring(colonIndex + 1) : undefined;
+  const urlWithoutAuth = url.substring(0, authStart) + url.substring(atIndex + 1);
+  return {
+    username,
+    password,
+    urlWithoutAuth,
+  };
+}
+
+export function getDefaultProxySettings(proxyUrl?: string): ProxySettings | undefined {
+  if (!proxyUrl) {
+    proxyUrl = loadEnvironmentProxyValue();
+    if (!proxyUrl) {
+      return undefined;
+    }
+  }
+
+  const { username, password, urlWithoutAuth } = extractAuthFromUrl(proxyUrl);
+  const parsedUrl = URLBuilder.parse(urlWithoutAuth);
+  const schema = parsedUrl.getScheme() ? parsedUrl.getScheme() + "://" : "";
+  return {
+    host: schema + parsedUrl.getHost(),
+    port: Number.parseInt(parsedUrl.getPort() || "80"),
+    username,
+    password,
+  };
+}
+
+export function proxyPolicy(proxySettings?: ProxySettings): RequestPolicyFactory {
+  if (!proxySettings) {
+    proxySettings = getDefaultProxySettings();
+  }
+  return {
+    create: (nextPolicy: RequestPolicy, options: RequestPolicyOptionsLike) => {
+      return new ProxyPolicy(nextPolicy, options, proxySettings!);
+    },
+  };
+}
+
+export class ProxyPolicy extends BaseRequestPolicy {
+  proxySettings: ProxySettings;
+
+  constructor(
+    nextPolicy: RequestPolicy,
+    options: RequestPolicyOptionsLike,
+    proxySettings: ProxySettings
+  ) {
+    super(nextPolicy, options);
+    this.proxySettings = proxySettings;
+  }
+
+  public sendRequest(request: WebResourceLike): Promise<HttpOperationResponse> {
+    if (!request.proxySettings && !isBypassed(request.url)) {
+      request.proxySettings = this.proxySettings;
+    }
+    return this._nextPolicy.sendRequest(request);
+  }
+}