package org.apache.maven.plugins.enforcer;

 /*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you under the Apache License, Version 2.0 (the

  * "License"); you may not use this file except in compliance

  * with the License.  You may obtain a copy of the License at

  *

  *  http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing,

  * software distributed under the License is distributed on an

  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

  * KIND, either express or implied.  See the License for the

  * specific language governing permissions and limitations

  * under the License.

  */

 import java.io.File;

 import java.io.IOException;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.List;

 import org.apache.maven.artifact.resolver.ArtifactNotFoundException;

 import org.apache.maven.artifact.resolver.ArtifactResolutionException;

 import org.apache.maven.enforcer.rule.api.EnforcerRuleException;

 import org.apache.maven.enforcer.rule.api.EnforcerRuleHelper;

 import org.apache.maven.model.Model;

 import org.apache.maven.model.Repository;

 import org.apache.maven.plugins.enforcer.utils.EnforcerRuleUtils;

 import org.apache.maven.project.MavenProject;

 import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluationException;

 import org.codehaus.plexus.util.StringUtils;

 import org.codehaus.plexus.util.xml.pull.XmlPullParserException;

 /**

  * This rule checks that this pom or its parents don't define a repository.

  *

  * @author <a href="mailto:brianf@apache.org">Brian Fox</a>

  */

 public class RequireNoRepositories

     extends AbstractNonCacheableEnforcerRule

 {

     /**

      * Whether to ban non-plugin repositories. By default they are banned.

      */

     public boolean banRepositories = true;

     /**

      * Whether to ban plugin repositories. By default they are banned.

      */

     public boolean banPluginRepositories = true;

     /**

      * Specify explicitly allowed non-plugin repositories. This is a list of ids.

      */

     public List<String> allowedRepositories = Collections.emptyList();

     /**

      * Specify explicitly allowed plugin repositories. This is a list of ids.

      */

     public List<String> allowedPluginRepositories = Collections.emptyList();

     /**

      * Whether to allow repositories which only resolve snapshots. By default they are banned.

      */

     public boolean allowSnapshotRepositories = false;

     /**

      * Whether to allow plugin repositories which only resolve snapshots. By default they are banned.

      */

     public boolean allowSnapshotPluginRepositories = false;

     /*

      * (non-Javadoc)

      * @see

      * org.apache.maven.enforcer.rule.api.EnforcerRule#execute(org.apache.maven.enforcer.rule.api.EnforcerRuleHelper)

      */

     public void execute( EnforcerRuleHelper helper )

         throws EnforcerRuleException

     {

         EnforcerRuleUtils utils = new EnforcerRuleUtils( helper );

         MavenProject project;

         try

         {

             project = (MavenProject) helper.evaluate( "${project}" );

             List<Model> models =

                 utils.getModelsRecursively( project.getGroupId(), project.getArtifactId(), project.getVersion(),

                                             new File( project.getBasedir(), "pom.xml" ) );

             List<Model> badModels = new ArrayList<Model>();

             StringBuffer newMsg = new StringBuffer();

             newMsg.append( "Some poms have repositories defined:\n" );

             for ( Model model : models )

             {

                 if ( banRepositories )

                 {

                     @SuppressWarnings( "unchecked" )

                     List<Repository> repos = model.getRepositories();

                     if ( repos != null && !repos.isEmpty() )

                     {

                         List<String> bannedRepos =

                             findBannedRepositories( repos, allowedRepositories, allowSnapshotRepositories );

                         if ( !bannedRepos.isEmpty() )

                         {

                             badModels.add( model );

                             newMsg.append(

                                 model.getGroupId() + ":" + model.getArtifactId() + " version:" + model.getVersion()

                                     + " has repositories " + bannedRepos );

                         }

                     }

                 }

                 if ( banPluginRepositories )

                 {

                     @SuppressWarnings( "unchecked" )

                     List<Repository> repos = model.getPluginRepositories();

                     if ( repos != null && !repos.isEmpty() )

                     {

                         List<String> bannedRepos =

                             findBannedRepositories( repos, allowedPluginRepositories, allowSnapshotPluginRepositories );

                         if ( !bannedRepos.isEmpty() )

                         {

                             badModels.add( model );

                             newMsg.append(

                                 model.getGroupId() + ":" + model.getArtifactId() + " version:" + model.getVersion()

                                     + " has plugin repositories " + bannedRepos );

                         }

                     }

                 }

             }

             // if anything was found, log it then append the

             // optional message.

             if ( !badModels.isEmpty() )

             {

                 if ( StringUtils.isNotEmpty( message ) )

                 {

                     newMsg.append( message );

                 }

                 throw new EnforcerRuleException( newMsg.toString() );

             }

         }

         catch ( ExpressionEvaluationException e )

         {

             throw new EnforcerRuleException( e.getLocalizedMessage() );

         }

         catch ( ArtifactResolutionException e )

         {

             throw new EnforcerRuleException( e.getLocalizedMessage() );

         }

         catch ( ArtifactNotFoundException e )

         {

             throw new EnforcerRuleException( e.getLocalizedMessage() );

         }

         catch ( IOException e )

         {

             throw new EnforcerRuleException( e.getLocalizedMessage() );

         }

         catch ( XmlPullParserException e )

         {

             throw new EnforcerRuleException( e.getLocalizedMessage() );

         }

     }

     private static List<String> findBannedRepositories( List<Repository> repos, List<String> allowedRepos, boolean allowSnapshots )

     {

         List<String> bannedRepos = new ArrayList<String>( allowedRepos.size() );

         for ( Repository r : repos )

         {

             if ( !allowedRepos.contains( r.getId() ) )

             {

                 if ( !allowSnapshots || r.getReleases().isEnabled() )

                 {

                     // if we are not allowing snapshots and this repo is enabled for releases

                     // it is banned.  We don't care whether it is enabled for snapshots

                     // if you define a repo and don't enable it for anything, then we have nothing 

                     // to worry about

                     bannedRepos.add( r.getId() );

                 }

             }

         }

         return bannedRepos;

     }

 }