From b9e6795b6ce7f15e26bd436543886d97dbda732f Mon Sep 17 00:00:00 2001
From: "Vincent Jansen (v.jansen@blueriq.com)" <v.jansen@blueriq.com>
Date: Fri, 17 Aug 2018 16:24:48 +0200
Subject: [PATCH] Download maven wrapper with authentication if availble

---
 .../.mvn/wrapper/MavenWrapperDownloader.java        | 10 ++++++++++
 maven-wrapper/mvnw                                  | 13 +++++++++++--
 maven-wrapper/mvnw.cmd                              |  9 ++++++++-
 3 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/maven-wrapper/.mvn/wrapper/MavenWrapperDownloader.java b/maven-wrapper/.mvn/wrapper/MavenWrapperDownloader.java
index a52b0a12db..eabf010ffd 100644
--- a/maven-wrapper/.mvn/wrapper/MavenWrapperDownloader.java
+++ b/maven-wrapper/.mvn/wrapper/MavenWrapperDownloader.java
@@ -98,6 +98,16 @@ public class MavenWrapperDownloader {
     }
 
     private static void downloadFileFromURL(String urlString, File destination) throws Exception {
+        if (System.getenv("MVNW_WRAPPER_AUTH_USERNAME") != null && System.getenv("MVNW_WRAPPER_AUTH_PASSWORD") != null) {
+            String username = System.getenv("MVNW_WRAPPER_AUTH_USERNAME");
+            char[] password = System.getenv("MVNW_WRAPPER_AUTH_PASSWORD").toCharArray();
+            Authenticator.setDefault(new Authenticator() {
+                @Override
+                protected PasswordAuthentication getPasswordAuthentication() {
+                    return new PasswordAuthentication(username, password);
+                }
+            });
+        }
         URL website = new URL(urlString);
         ReadableByteChannel rbc;
         rbc = Channels.newChannel(website.openStream());
diff --git a/maven-wrapper/mvnw b/maven-wrapper/mvnw
index 8dfad2cffb..e13f6777fc 100755
--- a/maven-wrapper/mvnw
+++ b/maven-wrapper/mvnw
@@ -225,12 +225,21 @@ else
         if [ "$MVNW_VERBOSE" = true ]; then
           echo "Found wget ... using wget"
         fi
-        wget "$jarUrl" -O "$wrapperJarPath"
+        if [ -z "$MVNW_WRAPPER_AUTH_USERNAME" ] || [ -z "$MVNW_WRAPPER_AUTH_PASSWORD" ]; then
+            wget "$jarUrl" -O "$wrapperJarPath"
+        else
+            wget --http-user=$MVNW_WRAPPER_AUTH_USERNAME --http-password=$MVNW_WRAPPER_AUTH_PASSWORD "$jarUrl" -O "$wrapperJarPath"
+        fi
     elif command -v curl > /dev/null; then
         if [ "$MVNW_VERBOSE" = true ]; then
           echo "Found curl ... using curl"
         fi
-        curl -o "$wrapperJarPath" "$jarUrl"
+        if [ -z "$MVNW_WRAPPER_AUTH_USERNAME" ] || [ -z "$MVNW_WRAPPER_AUTH_PASSWORD" ]; then
+            curl -o "$wrapperJarPath" "$jarUrl" -f
+        else
+            curl --user $MVNW_WRAPPER_AUTH_USERNAME:$MVNW_WRAPPER_AUTH_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
+        fi
+        
     else
         if [ "$MVNW_VERBOSE" = true ]; then
           echo "Falling back to using Java to download"
diff --git a/maven-wrapper/mvnw.cmd b/maven-wrapper/mvnw.cmd
index 48363fa60b..fbf543c9c4 100644
--- a/maven-wrapper/mvnw.cmd
+++ b/maven-wrapper/mvnw.cmd
@@ -132,7 +132,14 @@ if exist %WRAPPER_JAR% (
 ) else (
     echo Couldn't find %WRAPPER_JAR%, downloading it ...
 	echo Downloading from: %DOWNLOAD_URL%
-    powershell -Command "(New-Object Net.WebClient).DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"
+	
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_WRAPPER_AUTH_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_WRAPPER_AUTH_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_WRAPPER_AUTH_USERNAME%', '%MVNW_WRAPPER_AUTH_PASSWORD%');"^
+		"}"^
+		"$webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
+		"}"
     echo Finished downloading %WRAPPER_JAR%
 )
 @REM End of extension