New proxy tab in preferences

[ffissore]

Someone is having issues when using libs/boards manager behind corporate proxies (corps or universities)

Previous attempts to rely on system proxy settings were not successful, sometimes because of how such corporate PCs are configured. (see #3604)

We must give up and provide a complete proxy configuration settings panel

/cc @McNeight

[McNeight]

Just tested arduino-PR-3637-BUILD-377-windows from behind the firewall. Manual proxy settings work well, but the auto-detect setting has the following errors:

Error downloading http://downloads.arduino.cc/packages/package_index.json
java.lang.RuntimeException: java.lang.Exception: Error downloading http://downloads.arduino.cc/packages/package_index.json
    at cc.arduino.contributions.packages.ui.ContributionManagerUI.lambda$onUpdatePressed$23(ContributionManagerUI.java:149)
    at cc.arduino.contributions.packages.ui.ContributionManagerUI$$Lambda$81/32267106.run(Unknown Source)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.Exception: Error downloading http://downloads.arduino.cc/packages/package_index.json
    at cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:113)
    at cc.arduino.contributions.packages.ContributionInstaller.download(ContributionInstaller.java:318)
    at cc.arduino.contributions.packages.ContributionInstaller.downloadIndexAndSignature(ContributionInstaller.java:294)
    at cc.arduino.contributions.packages.ContributionInstaller.updateIndex(ContributionInstaller.java:276)
    at cc.arduino.contributions.packages.ui.ContributionManagerUI.lambda$onUpdatePressed$23(ContributionManagerUI.java:145)
    ... 2 more
Caused by: javax.script.ScriptException: ReferenceError: "myIpAddress" is not defined in <eval> at line number 106
    at jdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:455)
    at jdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:387)
    at jdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:187)
    at cc.arduino.net.CustomProxySelector.callFindProxyForURL(CustomProxySelector.java:83)
    at cc.arduino.net.CustomProxySelector.pacProxy(CustomProxySelector.java:60)
    at cc.arduino.net.CustomProxySelector.getProxyFor(CustomProxySelector.java:35)
    at cc.arduino.utils.network.FileDownloader.download(FileDownloader.java:125)
    at cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:111)
    ... 6 more
Caused by: <eval>:106 ReferenceError: "myIpAddress" is not defined
    at jdk.nashorn.internal.runtime.ECMAErrors.error(ECMAErrors.java:57)
    at jdk.nashorn.internal.runtime.ECMAErrors.referenceError(ECMAErrors.java:319)
    at jdk.nashorn.internal.runtime.ECMAErrors.referenceError(ECMAErrors.java:291)
    at jdk.nashorn.internal.objects.Global.__noSuchProperty__(Global.java:914)
    at jdk.nashorn.internal.scripts.Script$Recompilation$1$3549AA$\^eval\_.FindProxyForURL(<eval>:106)
    at jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:640)
    at jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:229)
    at jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:387)
    at jdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:192)
    at jdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:381)
    ... 12 more

This was with the non-debug executable. Let me know if running the debug executable provides you with more useful information, and I'll run that instead.

-Neil

[ffissore]

Argh, that's because I've implemented support only to main FindProxyForURL function. I'll work on the rest of the spec

[ffissore]

Since I don't want to ask you to share your pac file, can you please tell me which functions does it use, comparing it with the list available here ? (scroll down to Predefined Functions and Environment for the JavaScript Function)

[ffissore]

With 61626d4 I've added support to PAC built in functions (all but time related). Wait for the next build from @ArduinoBot and please retry

[ffissore]

@McNeight FYI implementation should be complete. These messages from @ArduinoBot it's just me keeping this PR up to date with master branch

[ArduinoBot]

Build successful. Please test this code using one of the following:
http://downloads.arduino.cc/javaide/pull_requests/arduino-PR-3637-BUILD-383-linux32.tar.xz
http://downloads.arduino.cc/javaide/pull_requests/arduino-PR-3637-BUILD-383-linux64.tar.xz
http://downloads.arduino.cc/javaide/pull_requests/arduino-PR-3637-BUILD-383-windows.zip
http://downloads.arduino.cc/javaide/pull_requests/arduino-PR-3637-BUILD-383-macosx.zip