(#3181) Let NuGet.Client get the system proxy if none is explicitly set.

src/chocolatey/infrastructure.app/builders/ConfigurationBuilder.cs

@@ -89,7 +89,6 @@ public static void SetupConfiguration(IList<string> args, ChocolateyConfiguratio
             SetGlobalOptions(args, config, container);
             SetEnvironmentOptions(config);
             EnvironmentSettings.SetEnvironmentVariables(config);
-            SetProxyOptions(config, container);
             // must be done last for overrides
             SetLicensedOptions(config, license, configFileSettings);
             // save all changes if there are any
@@ -464,53 +463,6 @@ private static void SetGlobalOptions(IList<string> args, ChocolateyConfiguration
                 });
         }
 
-        private static void SetProxyOptions(ChocolateyConfiguration config, Container container)
-        {
-            // Evaluation order of Proxy settings: System Set -> Environment Variable Set -> Chocolatey Configuration File Set -> CLI Passed in Argument
-            var proxyAlreadySet = !string.IsNullOrWhiteSpace(config.Proxy.Location);
-            var onWindows = Platform.GetPlatform() == PlatformType.Windows;
-
-            // Only Windows has a registry provider, if it's already set, or we're not on Windows we don't need to continue.
-            if (proxyAlreadySet || !onWindows)
-            {
-                return;
-            }
-
-            // We don't yet have a Proxy Location, check if the system has one configured in the registry
-            var registryService = container.GetInstance<IRegistryService>();
-            var internetSettingsRegKey = registryService.GetKey(RegistryHive.CurrentUser, "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings");
-
-            if (!internetSettingsRegKey.GetValue("ProxyEnable").ToStringSafe().IsEqualTo("1"))
-            {
-                return;
-            }
-
-            var proxySetting = internetSettingsRegKey.GetValue("ProxyServer").ToStringSafe();
-
-            if (string.IsNullOrWhiteSpace(proxySetting))
-            {
-                return;
-            }
-
-            if (proxySetting.IndexOf(';') != -1)
-            {
-                var allProxies = proxySetting.Split(';');
-                proxySetting = allProxies.FirstOrDefault(s => s.TrimSafe().StartsWith("https="));
-
-                if (string.IsNullOrWhiteSpace(proxySetting))
-                {
-                    proxySetting = allProxies.FirstOrDefault(s => s.TrimSafe().StartsWith("http="));
-                }
-            }
-
-            if (proxySetting?.IndexOf('=') != -1 && !proxySetting.StartsWith("http"))
-            {
-                return;
-            }
-
-            config.Proxy.Location = proxySetting.Split('=').LastOrDefault();
-        }
-
         private static void SetEnvironmentOptions(ChocolateyConfiguration config)
         {
             config.Information.PlatformType = Platform.GetPlatform();

src/chocolatey/infrastructure.app/nuget/NugetCommon.cs

@@ -124,7 +124,10 @@ public static IEnumerable<SourceRepository> GetRemoteRepositories(ChocolateyConf
             }
             else
             {
-                ProxyCache.Instance.Override(new System.Net.WebProxy());
+                // We need to override the proxy so that we don't use the NuGet configuration.
+                // We must however also be able to use the system proxy.
+                // Our changes to ProxyCache test for a null overridden proxy and get the system proxy if it's null.
+                ProxyCache.Instance.Override(proxy: null);
             }
 
             IEnumerable<string> sources = configuration.Sources.ToStringSafe().Split(new[] { ";", "," }, StringSplitOptions.RemoveEmptyEntries);

tests/chocolatey-tests/chocolatey.Tests.ps1

@@ -170,7 +170,9 @@ Describe "Ensuring Chocolatey is correctly installed" -Tag Environment, Chocolat
     # These tests are not a true test of PowerShell v2 compatibility as -Version 2 does not guarantee that things run exactly as in a PowerShell 2 instance, but it is as close as we can get in a testing environment.
     # Full proper testing on v2 would require a VM with only v2 installed.
     # This is skipped when not run in CI because it modifies the local system.
-    Context "PowerShell v2 compatibility" -Skip:(-not $env:TEST_KITCHEN) {
+    # These are skipped on Proxy tests because the proxy server we use doesn't allow
+    # the Windows updates access this needs to install PowerShell 2 support
+    Context "PowerShell v2 compatibility" -Skip:(-not $env:TEST_KITCHEN) -Tag ProxySkip {
         BeforeAll {
             # TODO: This doesn't work on client OSes (might be Install-WindowsOptionalFeature). Make sure this works on both server and client.
             Install-WindowsFeature powershell-v2

tests/chocolatey-tests/commands/choco-install.Tests.ps1

@@ -1806,6 +1806,63 @@ To install a local, or remote file, you may use:
         }
     }
 
+    # Tagged as Internal since this package is only available internally and downloads from internal infrastructure.
+    Context 'Installing package with Open Source Get-ChocolateyWebFile, Get-WebFileName and Get-WebHeaders' -Tag Internal, FossOnly {
+        BeforeAll {
+            $paths = New-ChocolateyInstallSnapshot
+
+            # Cache directory is set here to prevent assertion failures
+            $Output = Invoke-Choco install get-chocolateywebfile "--cache-location=$($paths.PackagesPath)" --confirm
+        }
+
+        AfterAll {
+            $null = Invoke-Choco uninstall get-chocolateywebfile --confirm
+        }
+
+        It 'Exits with Success (0)' {
+            $Output.ExitCode | Should -Be 0 -Because $Output.String
+        }
+
+        It 'Runs under background Service' -Tag Background {
+            $Output.Lines | Should -Contain 'Running in background mode' -Because $Output.String
+        }
+
+        It 'Outputs name of remote file' {
+            $Output.Lines | Should -Contain 'FileName: ChocolateyGUI.msi' -Because $Output.String
+        }
+
+        # We only get an output of System.Collections.Hashtable here,
+        # but that is enough for us to assert against the call to
+        # Get-WebHeaders
+        It 'Outputs information from web headers' {
+            $Output.Lines | Should -Contain 'System.Collections.Hashtable' -Because $Output.String
+        }
+
+        It 'Outputs downloading software' {
+            $Output.Lines | Should -Contain 'Downloading get-chocolateywebfile' -Because $Output.String
+        }
+
+        It 'Outputs download completed' {
+            $Output.Lines | Should -Contain "Download of ChocolateyGUI.msi (16.23 MB) completed." -Because $Output.String
+        }
+
+        It 'Outputs path to msi executable' {
+            $Output.Lines | Should -Contain "Path: $env:ChocolateyInstall\lib\get-chocolateywebfile\tools\ChocolateyGUI.msi" -Because $Output.String
+        }
+
+        It 'Outputs installing msi executable' {
+            $Output.Lines | Should -Contain 'Installing get-chocolateywebfile...' -Because $Output.String
+        }
+
+        It 'Outputs installation was successful' {
+            $Output.Lines | Should -Contain 'get-chocolateywebfile has been installed.' -Because $Output.String
+        }
+
+        It 'Installs software to expected directory' {
+            "${env:ProgramFiles(x86)}\Chocolatey GUI\ChocolateyGui.exe" | Should -Exist
+        }
+    }
+
     # This needs to be the last test in this block, to ensure NuGet configurations aren't being created.
     # Any tests after this block are expected to generate the configuration as they're explicitly using the NuGet CLI
     Test-NuGetPaths

tests/chocolatey-tests/features/Proxy.Tests.ps1

@@ -221,11 +221,6 @@ Describe "Proxy configuration (<Name>)" -Tag Proxy, ProxySkip -ForEach $TestCase
                     continue
                 }
 
-                $ConfigurationsToTest.System {
-                    $Output.String | Should -MatchExactly "Proxy\.Location='$SystemSet'"
-                    continue
-                }
-
                 default {
                     $Output.String | Should -Not -Match "Proxy\.Location"
                     $Output.String | Should -Not -Match "Proxy\.BypassList"
@@ -234,33 +229,3 @@ Describe "Proxy configuration (<Name>)" -Tag Proxy, ProxySkip -ForEach $TestCase
         }
     }
 }
-
-Describe "Multi-Protocol Proxy configuration" -Tag Proxy, ProxySkip -Skip:(-not $env:TEST_KITCHEN) {
-    BeforeAll {
-        Initialize-ChocolateyTestInstall
-        New-ChocolateyInstallSnapshot
-        $arguments = $null
-
-        $SystemSet = "SystemSetProxy"
-        Set-ItemProperty -Path 'HKCU:/Software/Microsoft/Windows/CurrentVersion/Internet Settings' -Name ProxyServer -Value "ftp=something;socks=another"
-        Set-ItemProperty -Path 'HKCU:/Software/Microsoft/Windows/CurrentVersion/Internet Settings' -Name ProxyEnable -Value 1
-    }
-
-    AfterAll {
-        Remove-ChocolateyTestInstall
-        Remove-ItemProperty -Path 'HKCU:/Software/Microsoft/Windows/CurrentVersion/Internet Settings' -Name ProxyServer -ErrorAction Ignore
-        Remove-ItemProperty -Path 'HKCU:/Software/Microsoft/Windows/CurrentVersion/Internet Settings' -Name ProxyEnable -ErrorAction Ignore
-        $env:https_proxy = $null
-    }
-
-    Context "Configured for command (<Command>)" -ForEach $CommandsToTest {
-        BeforeAll {
-            $Output = Invoke-Choco $Command @arguments @ExtraArguments --debug --verbose --noop
-        }
-
-        It "Should output the correct Proxy setting" {
-            $Output.String | Should -Not -MatchExactly "Proxy\.Location='$SystemSet'"
-            $Output.String | Should -Not -MatchExactly "Proxy\.Location"
-        }
-    }
-}