How to authenticate against a private Maven Repository in IVKM project? #453

nico-csp · 2023-12-01T11:48:39Z

nico-csp
Dec 1, 2023

I uploaded some JAR files to a private Maven Repository (Nexus), and I would like to use that in my C# project like

<PropertyGroup>
<MavenAdditionalRepositories>privmaven=https://.....</MavenAdditionalRepositories>
</PropertyGroup>

IKVM tries to access that repository, but gets HttpResponseException: status code: 401, reason phrase: Unauthorized (401)

I tried to provide credentials in my home's .m2/settings.xml (Windows), but it does not seem to be used.

<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
  <servers>
    <server>
      <id>privmaven</id>
      <username>my_user_name</username>
      <password>... password or api-key...</password>
    </server>
  </servers>
</settings>

I am a Maven newbie, so most likely, I made a mistake somewhere.

Does anybody know, how to properly set the authentication details?

Answered by wasabii

Dec 3, 2023

Found an issue in IKVM.Maven.Sdk where it was not correctly loading settings.xml. Fix will be in next release.

View full answer

wasabii · 2023-12-01T14:15:53Z

wasabii
Dec 1, 2023
Maintainer

This is a good question. I have never tested this, as I've never run my own Maven repository with this.

7 replies

wasabii Dec 1, 2023
Maintainer

Here is the code where I generate the RepositorySystemSession from aether:

https://github.com/ikvmnet/ikvm-maven/blob/8738f1fac17160ecae441cafb67bc163ae8fbaec/src/IKVM.Maven.Sdk.Tasks/MavenEnvironment.cs#L238C8-L238C8

And here is where I configure the AuthenticationSelector based on the user settings:

https://github.com/ikvmnet/ikvm-maven/blob/8738f1fac17160ecae441cafb67bc163ae8fbaec/src/IKVM.Maven.Sdk.Tasks/MavenEnvironment.cs#L219

Far as I know, that's supposed to work.

wasabii Dec 3, 2023
Maintainer

Found an issue in IKVM.Maven.Sdk where it was not correctly loading settings.xml. Fix will be in next release.

Answer selected by nico-csp

nico-csp Dec 4, 2023
Author

Thanks once more, Jerome!

nico-csp Dec 4, 2023
Author

The speed of reaction and fixing is amazing, Jerome.

I updated the version in my project and tried serveral approaches. Unfortunately, all of them failed, however.

All Configured in `settings.xml`

Meanwhile, the private repo including credentials is configured in ~/.m2/settings.xml.

`mvn` Works

I tried to download the package in question by calling mvn directly in terminal. It works.

`ikvm` Does Not Work

Even after downloading the package (so that it is avail in ~/.m2/repository/), building of the project fails with exceptions within IKVM.
For all the following tests, packages are already downloaded into previously mentioned directory.

The symptoms differ, depending on whether I am configuring my private repo using <MavenAdditionalRepositories> or not (settings.xml always contains the URL, though).

Using `<MavenAdditionalRepositories>`

When <MavenAdditionalRepositories> is used, I am getting

for each project, which depends on the IKVM-project, which should provide the JAR. The latter mentioned project has error MSB4057 ("The target 'ResolveIkvmRuntimeAssembly' does not exist in project"; freely translated from German by me).

The result stays the same, even when I remove bin and obj directories in that project.

No `<MavenAdditionalRepositories>` (URL only in `settings.xml`)

It seems that only https://repo1.maven.org/maven2 is scanned by IKVM.

There are two identical warnings and two errors in the project:

WARNING (appears twice): Could not find artifact xxxx in central (https://repo1.maven.org/maven2/)
ERROR: Missing artifact descriptor for xxxx
ERROR:

DependencyResolutionException: Could not find artifact xxxx in central (https://repo1.maven.org/maven2/)
   bei org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(RepositorySystemSession session, DependencyRequest request)
   bei IKVM.Maven.Sdk.Tasks.MavenReferenceItemResolve.ResolveCompileDependencyGraph(IkvmMavenEnvironment maven, RepositorySystemSession session, IList`1 repositories, IList`1 items) in C:\w\ikvm-maven\src\IKVM.Maven.Sdk.Tasks\MavenReferenceItemResolve.cs:Zeile 254.
   bei IKVM.Maven.Sdk.Tasks.MavenReferenceItemResolve.ResolveReferences(IList`1 repositories, IList`1 items) in C:\w\ikvm-maven\src\IKVM.Maven.Sdk.Tasks\MavenReferenceItemResolve.cs:Zeile 193.
   bei IKVM.Maven.Sdk.Tasks.MavenReferenceItemResolve.Execute() in C:\w\ikvm-maven\src\IKVM.Maven.Sdk.Tasks\MavenReferenceItemResolve.cs:Zeile 151.
ArtifactResolutionException: Could not find artifact xxxx in central (https://repo1.maven.org/maven2/)
   bei org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(RepositorySystemSession session, Collection requests)
   bei org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(RepositorySystemSession session, DependencyRequest request)
ArtifactNotFoundException: Could not find artifact xxxx in central (https://repo1.maven.org/maven2/)

Do I need some more configuration settings somewhere in my C# project file?

nico-csp Dec 4, 2023
Author

Just for completeness: When I originally referenced the local repository directory with <MavenAdditionalRepositories> (containing the JAR package), it worked like a charm.

nico-csp Dec 4, 2023
Author

With your new release, I tried to go back using the reference to my local directory -- but this does not work anymore. Error MSB4057 is raised permanently.

This one works (older versions, before update):

This one works, too:

As soon as I upgrade IKVM, it breaks (MSB4057):

Don't know, whether this tells you anything.

wasabii · 2023-12-06T16:12:19Z

wasabii
Dec 6, 2023
Maintainer

Yes. I'm still working on it. I got your issue to reproduce, but only on the CI. Can't get it to happen locally, so I'm trying to figure that out.

19 replies

nico-csp Dec 13, 2023
Author

:-) Ok. Yes, there are warnings from many packages, not only IKVM. That's why I most likely did not see that there were newer ones added, when I updated IKVM.

Ok. Good to know the reason then. Will push our admins then. :-D

wasabii Dec 13, 2023
Maintainer

If you're interested in the history: https://github.com/orgs/ikvmnet/discussions/400

nico-csp Dec 13, 2023
Author

Thank you, Jerome. Of course it is a good and necessary decision.

And sorry for bothering you with such a version issue...

nico-csp Dec 14, 2023
Author

Back again.... :-)

Upgraded everything to .NET6 and tried the maven server authentication again (original motivation for this discussion).

There is an error message again, but it looks good from the version perspective. ;-)

However, it contains "Could not transfer artifact ... from/to ...: status code: 401, reason phrase: Unauthorized (401)"

So we are back to form where we started.

The project file:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <LangVersion>9.0</LangVersion>
    <MavenAdditionalRepositories>cspmaven=https://nexus.local/repository/maven-releases/</MavenAdditionalRepositories>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="IKVM.Maven.Sdk" Version="1.6.4" />
  </ItemGroup>


    <ItemGroup>
        <MavenReference Include="MyTestJar">
            <GroupId>de.mystuff</GroupId>
            <ArtifactId>MyTestJar</ArtifactId>
            <Classifier/>
            <Version>6.4.2.4</Version>
        </MavenReference>
    </ItemGroup>
</Project>

The ~/.m2/settings.xml contains the section

    <server>
      <id>cspmaven</id>
      <username>MYSELF</username>
      <password>MYSECRET</password>
    </server>

Are there any logs, which I could check, why the credentials are not taken?

nico-csp Dec 14, 2023
Author

As additional information:

Previously, I deleted downloaded packages from ~/.m2/repository
With the given settings.xml, I simply could call successfully:
C:\tools\apache-maven-3.9.6\bin>mvn.cmd dependency:get -Dartifact=de.mystuff:MyTestJar:6.4.2.4

Thus, settings.xml contains everything, what is required; server and credentials.

The question is: What do I have to add to my .csproj-file to obtain the same result with IKVM?

wasabii · 2023-12-14T14:55:58Z

wasabii
Dec 14, 2023
Maintainer

Everything that gets logged goes to Msbuild, so your could it's verbosity to diag.

I guess I need to get some sort of repo set up on my end to test against. I've just been guessing this whole time.

19 replies

nico-csp Jan 9, 2024
Author

Thanks for your fast reaction, Jerome! Yes, I will try it. Will let you know till noon the latest.

nico-csp Jan 9, 2024
Author

There is no asset that I could load... Neither dotnet nor Rider can find package versions higher than 1.6.6 ... Did I miss anything? I also tried to find it at your nuget-space... What do I have to do to get the package?

wasabii Jan 9, 2024
Maintainer

https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-nuget-registry

Unless I specifically make a release targeted to nuget.org, that's where every build goes.

nico-csp Jan 9, 2024
Author

I read this... the solution was to disable all sources except for the GitHub one... then the new versions appeared (and only then).

I installed the package -- and it builds properly!

So I reintroduced the testing project for testing the Java classes. All tests are green!

Thank you, Jerome! Looking forward to the next release!

wasabii Jan 9, 2024
Maintainer

Yay!

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IKVM

How to authenticate against a private Maven Repository in IVKM project? #453

nico-csp Dec 1, 2023

Replies: 3 comments · 45 replies

wasabii Dec 1, 2023 Maintainer

wasabii Dec 1, 2023 Maintainer

wasabii Dec 3, 2023 Maintainer

nico-csp Dec 4, 2023 Author

nico-csp Dec 4, 2023 Author

All Configured in settings.xml

mvn Works

ikvm Does Not Work

Using <MavenAdditionalRepositories>

No <MavenAdditionalRepositories> (URL only in settings.xml)

nico-csp Dec 4, 2023 Author

nico-csp Dec 4, 2023 Author

wasabii Dec 6, 2023 Maintainer

nico-csp Dec 13, 2023 Author

wasabii Dec 13, 2023 Maintainer

nico-csp Dec 13, 2023 Author

nico-csp Dec 14, 2023 Author

nico-csp Dec 14, 2023 Author

wasabii Dec 14, 2023 Maintainer

nico-csp Jan 9, 2024 Author

nico-csp Jan 9, 2024 Author

wasabii Jan 9, 2024 Maintainer

nico-csp Jan 9, 2024 Author

wasabii Jan 9, 2024 Maintainer

nico-csp
Dec 1, 2023

Replies: 3 comments 45 replies

wasabii
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wasabii Dec 1, 2023
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wasabii Dec 3, 2023
Maintainer

nico-csp Dec 4, 2023
Author

nico-csp Dec 4, 2023
Author

All Configured in `settings.xml`

`mvn` Works

`ikvm` Does Not Work

Using `<MavenAdditionalRepositories>`

No `<MavenAdditionalRepositories>` (URL only in `settings.xml`)

nico-csp Dec 4, 2023
Author

nico-csp Dec 4, 2023
Author

wasabii
Dec 6, 2023
Maintainer

nico-csp Dec 13, 2023
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wasabii Dec 13, 2023
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nico-csp Dec 13, 2023
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nico-csp Dec 14, 2023
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nico-csp Dec 14, 2023
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wasabii
Dec 14, 2023
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nico-csp Jan 9, 2024
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nico-csp Jan 9, 2024
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wasabii Jan 9, 2024
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nico-csp Jan 9, 2024
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wasabii Jan 9, 2024
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