Installer and Docker builds fail as they do not support proxy servers

[huornlmj]

Installation fails with the following when the system is located behind a proxy.

Exception in thread "main" java.io.IOException: Downloading from https://services.gradle.org/distributions/gradle-6.5-bin.zip failed: timeout

Same happens in both installation modes (traditional and Docker build)

Please provide a way to install behind a proxy.

--SNIP--
Building all Google plugins ...

Building detectors/credentials/cve20177615 ...
Downloading https://services.gradle.org/distributions/gradle-6.5-bin.zip

Exception in thread "main" java.io.IOException: Downloading from https://services.gradle.org/distributions/gradle-6.5-bin.zip failed: timeout
        at org.gradle.wrapper.Download.downloadInternal(Download.java:106)
        at org.gradle.wrapper.Download.download(Download.java:66)
        at org.gradle.wrapper.Install$1.call(Install.java:68)
        at org.gradle.wrapper.Install$1.call(Install.java:48)
        at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:69)
        at org.gradle.wrapper.Install.createDist(Install.java:48)
        at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:107)
        at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:63)
Caused by: java.net.SocketTimeoutException: Connect timed out
        at java.base/sun.nio.ch.NioSocketImpl.timedFinishConnect(NioSocketImpl.java:539)
        at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:585)
        at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:327)
        at java.base/java.net.Socket.connect(Socket.java:666)
        at java.base/sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:304)
        at java.base/sun.net.NetworkClient.doConnect(NetworkClient.java:178)
        at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:531)
        at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:636)
        at java.base/sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
        at java.base/sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:378)
        at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:193)
        at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1241)
        at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1127)
        at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:179)
        at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1661)
        at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1585)
        at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:224)
        at org.gradle.wrapper.Download.downloadInternal(Download.java:83)
        ... 7 more

[RiRa12621]

But that seems to be an issue on your end, does a plain wget https://services.gradle.org/distributions/gradle-6.5-bin.zip work?

[huornlmj]

Yes a wget works.

[tooryx]

Hi @huornlmj,

Just to clarify, how is the proxy configured on your host? Is it a transparent proxy or is it declared via system-wide settings?
I have limited knowledge of gradle but I am pretty sure we could find a way to define the proxy.

~tooryx

[huornlmj]

It's via environment variables (http_proxy and https_proxy).

[tooryx]

Could you try setting the proxy configuration in gradle.properties as instructed in https://docs.gradle.org/current/userguide/networking.html? When I have a bit more time, I will setup a test environment to try to reproduce this and complete the documentation accordingly.