package org.apache.maven.plugin.gpg;

 /*

  * 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.FileNotFoundException;

 import java.io.IOException;

 import java.io.Reader;

 import java.io.Writer;

 import java.util.Map;

 import org.apache.maven.artifact.Artifact;

 import org.apache.maven.artifact.deployer.ArtifactDeployer;

 import org.apache.maven.artifact.deployer.ArtifactDeploymentException;

 import org.apache.maven.artifact.factory.ArtifactFactory;

 import org.apache.maven.artifact.metadata.ArtifactMetadata;

 import org.apache.maven.artifact.repository.ArtifactRepository;

 import org.apache.maven.artifact.repository.ArtifactRepositoryFactory;

 import org.apache.maven.artifact.repository.layout.ArtifactRepositoryLayout;

 import org.apache.maven.model.Model;

 import org.apache.maven.model.Parent;

 import org.apache.maven.model.io.xpp3.MavenXpp3Reader;

 import org.apache.maven.model.io.xpp3.MavenXpp3Writer;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.apache.maven.plugin.MojoFailureException;

 import org.apache.maven.project.artifact.ProjectArtifactMetadata;

 import org.apache.maven.project.validation.ModelValidationResult;

 import org.apache.maven.project.validation.ModelValidator;

 import org.codehaus.plexus.util.IOUtil;

 import org.codehaus.plexus.util.ReaderFactory;

 import org.codehaus.plexus.util.StringUtils;

 import org.codehaus.plexus.util.WriterFactory;

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

 /**

  * Signs artifacts and installs the artifact in the remote repository.

  * 

  * @author Daniel Kulp

  * @goal sign-and-deploy-file

  * @requiresProject false

  * @threadSafe

  * @since 1.0-beta-4

  */

 public class SignAndDeployFileMojo

     extends AbstractGpgMojo

 {

     /**

      * The directory where to store signature files.

      * 

      * @parameter expression="${gpg.ascDirectory}"

      */

     private File ascDirectory;

     /**

      * Flag whether Maven is currently in online/offline mode.

      * 

      * @parameter default-value="${settings.offline}"

      * @readonly

      */

     private boolean offline;

     /**

      * GroupId of the artifact to be deployed. Retrieved from POM file if specified.

      * 

      * @parameter expression="${groupId}"

      */

     private String groupId;

     /**

      * ArtifactId of the artifact to be deployed. Retrieved from POM file if specified.

      * 

      * @parameter expression="${artifactId}"

      */

     private String artifactId;

     /**

      * Version of the artifact to be deployed. Retrieved from POM file if specified.

      * 

      * @parameter expression="${version}"

      */

     private String version;

     /**

      * Type of the artifact to be deployed. Retrieved from POM file if specified.

      * 

      * @parameter expression="${packaging}"

      */

     private String packaging;

     /**

      * Add classifier to the artifact

      * 

      * @parameter expression="${classifier}";

      */

     private String classifier;

     /**

      * Description passed to a generated POM file (in case of generatePom=true).

      * 

      * @parameter expression="${generatePom.description}"

      */

     private String description;

     /**

      * File to be deployed.

      * 

      * @parameter expression="${file}"

      * @required

      */

     private File file;

     /**

      * Location of an existing POM file to be deployed alongside the main artifact, given by the ${file} parameter.

      * 

      * @parameter expression="${pomFile}"

      */

     private File pomFile;

     /**

      * Upload a POM for this artifact. Will generate a default POM if none is supplied with the pomFile argument.

      * 

      * @parameter expression="${generatePom}" default-value="true"

      */

     private boolean generatePom;

     /**

      * Whether to deploy snapshots with a unique version or not.

      * 

      * @parameter expression="${uniqueVersion}" default-value="true"

      */

     private boolean uniqueVersion;

     /**

      * URL where the artifact will be deployed. <br/>

      * ie ( file:///C:/m2-repo or scp://host.com/path/to/repo )

      * 

      * @parameter expression="${url}"

      * @required

      */

     private String url;

     /**

      * Server Id to map on the &lt;id&gt; under &lt;server&gt; section of <code>settings.xml</code>. In most cases, this

      * parameter will be required for authentication.

      * 

      * @parameter expression="${repositoryId}" default-value="remote-repository"

      * @required

      */

     private String repositoryId;

     /**

      * The type of remote repository layout to deploy to. Try <i>legacy</i> for a Maven 1.x-style repository layout.

      * 

      * @parameter expression="${repositoryLayout}" default-value="default"

      */

     private String repositoryLayout;

     /**

      * @component

      */

     private ArtifactDeployer deployer;

     /**

      * @parameter default-value="${localRepository}"

      * @required

      * @readonly

      */

     private ArtifactRepository localRepository;

     /**

      * Map that contains the layouts.

      * 

      * @component role="org.apache.maven.artifact.repository.layout.ArtifactRepositoryLayout"

      */

     private Map repositoryLayouts;

     /**

      * Component used to create an artifact

      * 

      * @component

      */

     private ArtifactFactory artifactFactory;

     /**

      * Component used to create a repository

      * 

      * @component

      */

     private ArtifactRepositoryFactory repositoryFactory;

     /**

      * The component used to validate the user-supplied artifact coordinates.

      * 

      * @component

      */

     private ModelValidator modelValidator;

     private void initProperties()

         throws MojoExecutionException

     {

         // Process the supplied POM (if there is one)

         if ( pomFile != null )

         {

             generatePom = false;

             Model model = readModel( pomFile );

             processModel( model );

         }

     }

     public void execute()

         throws MojoExecutionException, MojoFailureException

     {

         GpgSigner signer = newSigner( null );

         signer.setOutputDirectory( ascDirectory );

         signer.setBaseDirectory( new File( "" ).getAbsoluteFile() );

         if ( offline )

         {

             throw new MojoFailureException( "Cannot deploy artifacts when Maven is in offline mode" );

         }

         initProperties();

         validateArtifactInformation();

         if ( !file.exists() )

         {

             throw new MojoFailureException( file.getPath() + " not found." );

         }

         ArtifactRepositoryLayout layout = (ArtifactRepositoryLayout) repositoryLayouts.get( repositoryLayout );

         if ( layout == null )

         {

             throw new MojoFailureException( "Invalid repository layout: " + repositoryLayout );

         }

         ArtifactRepository deploymentRepository =

             repositoryFactory.createDeploymentArtifactRepository( repositoryId, url, layout, uniqueVersion );

         if ( StringUtils.isEmpty( deploymentRepository.getProtocol() ) )

         {

             throw new MojoFailureException( "No transfer protocol found." );

         }

         Artifact artifact =

             artifactFactory.createArtifactWithClassifier( groupId, artifactId, version, packaging, classifier );

         if ( file.equals( getLocalRepoFile( artifact ) ) )

         {

             throw new MojoFailureException( "Cannot deploy artifact from the local repository: " + file );

         }

         File fileSig = signer.generateSignatureForArtifact( file );

         ArtifactMetadata metadata = new AscArtifactMetadata( artifact, fileSig, false );

         artifact.addMetadata( metadata );

         if ( !"pom".equals( packaging ) )

         {

             if ( pomFile == null && generatePom )

             {

                 pomFile = generatePomFile();

             }

             if ( pomFile != null )

             {

                 metadata = new ProjectArtifactMetadata( artifact, pomFile );

                 artifact.addMetadata( metadata );

                 fileSig = signer.generateSignatureForArtifact( pomFile );

                 metadata = new AscArtifactMetadata( artifact, fileSig, true );

                 artifact.addMetadata( metadata );

             }

         }

         try

         {

             deployer.deploy( file, artifact, deploymentRepository, localRepository );

         }

         catch ( ArtifactDeploymentException e )

         {

             throw new MojoExecutionException( e.getMessage(), e );

         }

     }

     /**

      * Gets the path of the specified artifact within the local repository. Note that the returned path need not exist

      * (yet).

      * 

      * @param artifact The artifact whose local repo path should be determined, must not be <code>null</code>.

      * @return The absolute path to the artifact when installed, never <code>null</code>.

      */

     private File getLocalRepoFile( Artifact artifact )

     {

         String path = localRepository.pathOf( artifact );

         return new File( localRepository.getBasedir(), path );

     }

     /**

      * Process the supplied pomFile to get groupId, artifactId, version, and packaging

      *

      * @param model The POM to extract missing artifact coordinates from, must not be <code>null</code>.

      */

     private void processModel( Model model )

     {

         Parent parent = model.getParent();

         if ( this.groupId == null )

         {

             this.groupId = model.getGroupId();

             if ( this.groupId == null && parent != null )

             {

                 this.groupId = parent.getGroupId();

             }

         }

         if ( this.artifactId == null )

         {

             this.artifactId = model.getArtifactId();

         }

         if ( this.version == null )

         {

             this.version = model.getVersion();

             if ( this.version == null && parent != null )

             {

                 this.version = parent.getVersion();

             }

         }

         if ( this.packaging == null )

         {

             this.packaging = model.getPackaging();

         }

     }

     /**

      * Extract the model from the specified POM file.

      * 

      * @param pomFile The path of the POM file to parse, must not be <code>null</code>.

      * @return The model from the POM file, never <code>null</code>.

      * @throws MojoExecutionException If the file doesn't exist of cannot be read.

      */

     private Model readModel( File pomFile )

         throws MojoExecutionException

     {

         Reader reader = null;

         try

         {

             reader = ReaderFactory.newXmlReader( pomFile );

             return new MavenXpp3Reader().read( reader );

         }

         catch ( FileNotFoundException e )

         {

             throw new MojoExecutionException( "POM not found " + pomFile, e );

         }

         catch ( IOException e )

         {

             throw new MojoExecutionException( "Error reading POM " + pomFile, e );

         }

         catch ( XmlPullParserException e )

         {

             throw new MojoExecutionException( "Error parsing POM " + pomFile, e );

         }

         finally

         {

             IOUtil.close( reader );

         }

     }

     /**

      * Generates a minimal POM from the user-supplied artifact information.

      * 

      * @return The path to the generated POM file, never <code>null</code>.

      * @throws MojoExecutionException If the generation failed.

      */

     private File generatePomFile()

         throws MojoExecutionException

     {

         Model model = generateModel();

         Writer fw = null;

         try

         {

             File tempFile = File.createTempFile( "mvndeploy", ".pom" );

             tempFile.deleteOnExit();

             fw = WriterFactory.newXmlWriter( tempFile );

             new MavenXpp3Writer().write( fw, model );

             return tempFile;

         }

         catch ( IOException e )

         {

             throw new MojoExecutionException( "Error writing temporary pom file: " + e.getMessage(), e );

         }

         finally

         {

             IOUtil.close( fw );

         }

     }

     /**

      * Generates a minimal model from the user-supplied artifact information.

      * 

      * @return The generated model, never <code>null</code>.

      */

     private Model generateModel()

     {

         Model model = new Model();

         model.setModelVersion( "4.0.0" );

         model.setGroupId( groupId );

         model.setArtifactId( artifactId );

         model.setVersion( version );

         model.setPackaging( packaging );

         model.setDescription( description );

         return model;

     }

     /**

      * Validates the user-supplied artifact information.

      * 

      * @throws MojoFailureException If any artifact coordinate is invalid.

      */

     private void validateArtifactInformation()

         throws MojoFailureException

     {

         Model model = generateModel();

         ModelValidationResult result = modelValidator.validate( model );

         if ( result.getMessageCount() > 0 )

         {

             throw new MojoFailureException( "The artifact information is incomplete or not valid:\n"

                 + result.render( "  " ) );

         }

     }

 }