From d04dab381d61a8df47d11177ebf8ca2d2c88eae8 Mon Sep 17 00:00:00 2001
From: Danny McCormick <damccorm@microsoft.com>
Date: Mon, 15 Jul 2019 13:40:27 -0400
Subject: [PATCH] Download from zulu

---
 lib/installer.js | 33 ++++++++++++++++++++++++++++++++-
 src/installer.ts | 41 ++++++++++++++++++++++++++++++++++++++---
 2 files changed, 70 insertions(+), 4 deletions(-)

diff --git a/lib/installer.js b/lib/installer.js
index c5a98278..0797a8fb 100644
--- a/lib/installer.js
+++ b/lib/installer.js
@@ -22,6 +22,7 @@ const exec = __importStar(require("@actions/exec"));
 const tc = __importStar(require("@actions/tool-cache"));
 const fs = __importStar(require("fs"));
 const path = __importStar(require("path"));
+const httpm = __importStar(require("typed-rest-client/HttpClient"));
 const IS_WINDOWS = process.platform === 'win32';
 if (!tempDirectory) {
     let baseLocation;
@@ -47,7 +48,8 @@ function getJava(version, arch, jdkFile) {
         }
         else {
             if (!jdkFile) {
-                throw new Error(`Failed to find Java ${version} in the cache. Please specify a valid jdk file to install from instead.`);
+                const downloadUrl = yield getDownloadUrl(version);
+                jdkFile = yield tc.downloadTool(downloadUrl);
             }
             core.debug('Retrieving Jdk from local path');
             const compressedFileExtension = getFileEnding(jdkFile);
@@ -143,3 +145,32 @@ function unzipJavaDownload(repoRoot, fileEnding, destinationFolder) {
         }
     });
 }
+function getDownloadUrl(version) {
+    return __awaiter(this, void 0, void 0, function* () {
+        let filterString = '';
+        if (IS_WINDOWS) {
+            filterString = `jdk${version}-win_x64.zip`;
+        }
+        else {
+            if (process.platform === 'darwin') {
+                filterString = `jdk${version}-macosx_x64.tar.gz`;
+            }
+            else {
+                filterString = `jdk${version}-linux_x64.tar.gz`;
+            }
+        }
+        let http = new httpm.HttpClient('setup-java');
+        let contents = yield (yield http.get('https://static.azul.com/zulu/bin/')).readBody();
+        let refs = contents.match(/<a href.*\">/gi) || [];
+        refs = refs.filter(val => {
+            if (val.indexOf(filterString) > -1) {
+                return true;
+            }
+        });
+        if (refs.length == 0) {
+            throw new Error(`No valid download found for version ${version}. Check https://static.azul.com/zulu/bin/ for a list of valid versions or download your own jdk file and add the jdkFile argument`);
+        }
+        const downloadLocation = refs[0].slice('<a href="'.length, refs[0].length - '">'.length);
+        return `https://static.azul.com/zulu/bin/${downloadLocation}`;
+    });
+}
diff --git a/src/installer.ts b/src/installer.ts
index 9a7bea20..0ad8aa21 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -6,6 +6,7 @@ import * as exec from '@actions/exec';
 import * as tc from '@actions/tool-cache';
 import * as fs from 'fs';
 import * as path from 'path';
+import * as httpm from 'typed-rest-client/HttpClient';
 
 const IS_WINDOWS = process.platform === 'win32';
 
@@ -35,9 +36,8 @@ export async function getJava(
     core.debug(`Tool found in cache ${toolPath}`);
   } else {
     if (!jdkFile) {
-      throw new Error(
-        `Failed to find Java ${version} in the cache. Please specify a valid jdk file to install from instead.`
-      );
+      const downloadUrl: string = await getDownloadUrl(version);
+      jdkFile = await tc.downloadTool(downloadUrl);
     }
     core.debug('Retrieving Jdk from local path');
     const compressedFileExtension = getFileEnding(jdkFile);
@@ -143,3 +143,38 @@ async function unzipJavaDownload(
     throw new Error(`Jdk argument ${jdkFile} is not a file`);
   }
 }
+
+async function getDownloadUrl(version: string) {
+  let filterString = '';
+  if (IS_WINDOWS) {
+    filterString = `jdk${version}-win_x64.zip`;
+  } else {
+    if (process.platform === 'darwin') {
+      filterString = `jdk${version}-macosx_x64.tar.gz`;
+    } else {
+      filterString = `jdk${version}-linux_x64.tar.gz`;
+    }
+  }
+  let http: httpm.HttpClient = new httpm.HttpClient('setup-java');
+  let contents = await (await http.get(
+    'https://static.azul.com/zulu/bin/'
+  )).readBody();
+  let refs = contents.match(/<a href.*\">/gi) || [];
+  refs = refs.filter(val => {
+    if (val.indexOf(filterString) > -1) {
+      return true;
+    }
+  });
+
+  if (refs.length == 0) {
+    throw new Error(
+      `No valid download found for version ${version}. Check https://static.azul.com/zulu/bin/ for a list of valid versions or download your own jdk file and add the jdkFile argument`
+    );
+  }
+
+  const downloadLocation = refs[0].slice(
+    '<a href="'.length,
+    refs[0].length - '">'.length
+  );
+  return `https://static.azul.com/zulu/bin/${downloadLocation}`;
+}