[java-identity-provider] 05/06: IDP-1499 Installer: Revert removal of some tasks

Rod Widdowson rdw at steadingsoftware.com
Thu Oct 24 12:00:34 EDT 2019


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rdw pushed a commit to branch master
in repository java-identity-provider.

View the commit online:
http://git.shibboleth.net/view/?p=java-identity-provider.git;a=commit;h=a8ebb8279d3d204674320d77ca3e2d9be5b4f727

commit a8ebb8279d3d204674320d77ca3e2d9be5b4f727
Author: Rod Widdowson <rdw at steadingsoftware.com>
AuthorDate: Thu Oct 24 10:08:53 2019 +0100

    IDP-1499 Installer: Revert removal of some tasks
    
    selfsignedcert, mergeproperties and rewriteproperties are used by the jetty
    install script (currently only used by Windows)
    
    This partially reverts commit db9c4ded6d921eb9c04adb06f591b85e2edb50a0.
    
    https://issues.shibboleth.net/jira/browse/IDP-1499
---
 .../net/shibboleth/idp/installer/V4Install.java    |   2 +-
 .../ant/impl/BasicKeystoreKeyStrategyTask.java     | 128 +++++++++++++
 .../installer/ant/impl/MergePropertiesTask.java    | 128 +++++++++++++
 .../installer/ant/impl/MetadataGeneratorTask.java  | 209 +++++++++++++++++++++
 .../installer/ant/impl/RewritePropertiesTask.java  | 117 ++++++++++++
 .../impl/SelfSignedCertificateGeneratorTask.java   | 171 +++++++++++++++++
 .../resources/net/shibboleth/idp/installer/ant.xml |   3 +
 .../idp/installer/metadata-generator-ant.xml       |  19 ++
 8 files changed, 776 insertions(+), 1 deletion(-)

diff --git a/idp-installer/src/main/java/net/shibboleth/idp/installer/V4Install.java b/idp-installer/src/main/java/net/shibboleth/idp/installer/V4Install.java
index cf7981c..b753acf 100644
--- a/idp-installer/src/main/java/net/shibboleth/idp/installer/V4Install.java
+++ b/idp-installer/src/main/java/net/shibboleth/idp/installer/V4Install.java
@@ -340,7 +340,7 @@ public class V4Install extends AbstractInitializableComponent {
         }
         final Resource resource = new ClassPathResource("net/shibboleth/idp/installer/metadata-generator.xml");
         final GenericApplicationContext context = new ApplicationContextBuilder()
-                .setName(V4Install.class.getName())
+                .setName(MetadataGenerator.class.getName())
                 .setServiceConfigurations(Collections.singletonList(resource))
                 .setContextInitializer(new Initializer())
                 .build();
diff --git a/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/BasicKeystoreKeyStrategyTask.java b/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/BasicKeystoreKeyStrategyTask.java
new file mode 100644
index 0000000..6b0963f
--- /dev/null
+++ b/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/BasicKeystoreKeyStrategyTask.java
@@ -0,0 +1,128 @@
+/*
+ * Licensed to the University Corporation for Advanced Internet Development,
+ * Inc. (UCAID) under one or more contributor license agreements.  See the
+ * NOTICE file distributed with this work for additional information regarding
+ * copyright ownership. The UCAID 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.
+ */
+
+package net.shibboleth.idp.installer.ant.impl;
+
+import java.io.File;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+import net.shibboleth.utilities.java.support.annotation.constraint.NotEmpty;
+import net.shibboleth.utilities.java.support.annotation.constraint.Positive;
+import net.shibboleth.utilities.java.support.security.BasicKeystoreKeyStrategyTool;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.Project;
+import org.apache.tools.ant.Task;
+
+/**
+ * Wrapper around {@link BasicKeystoreKeyStrategyTool}.
+ */
+public class BasicKeystoreKeyStrategyTask extends Task {
+
+    /** encapsulated {@link BasicKeystoreKeyStrategyTool}.*/
+    private BasicKeystoreKeyStrategyTool tool;
+    
+    /** Constructor. */
+    public BasicKeystoreKeyStrategyTask() {
+        tool = new BasicKeystoreKeyStrategyTool();
+    }
+    
+    /**
+     * Set the type of key that will be generated. Defaults to AES.
+     * 
+     * @param type type of key that will be generated
+     */
+    public void setKeyType(@Nonnull @NotEmpty final String type) {
+        tool.setKeyType(type);
+    } 
+
+    /**
+     * Set the size of the generated key. Defaults to 128
+     * 
+     * @param size size of the generated key
+     */
+    public void setKeySize(@Positive final int size) {
+        tool.setKeySize(size);
+    } 
+    
+    /**
+     * Set the encryption key alias base name.
+     * 
+     * @param alias the encryption key alias base
+     */
+    public void setKeyAlias(@Nonnull @NotEmpty final String alias) {
+        tool.setKeyAlias(alias);
+    } 
+
+    /**
+     * Set the number of keys to maintain. Defaults to 3.
+     * 
+     * @param count number of keys to maintain
+     */
+    public void setKeyCount(@Positive final int count) {
+        tool.setKeyCount(count);
+    } 
+
+    /**
+     * Set the type of keystore to create. Defaults to JCEKS.
+     * 
+     * @param type keystore type
+     */
+    public void setKeystoreType(@Nonnull @NotEmpty final String type) {
+        tool.setKeystoreType(type);
+    } 
+
+    /**
+     * Set the keystore file to create or modify.
+     * 
+     * @param file keystore file
+     */
+    public void setKeystoreFile(@Nonnull final File file) {
+        tool.setKeystoreFile(file);
+    } 
+
+    /**
+     * Set the password for the keystore.
+     * 
+     * @param password password for the keystore
+     */
+    public void setKeystorePassword(@Nullable final String password) {
+        tool.setKeystorePassword(password);
+    } 
+    
+    /**
+     * Set the key versioning file to create or modify.
+     * 
+     * @param file key versioning file
+     */
+    public void setVersionFile(@Nonnull final File file) {
+        tool.setVersionFile(file);
+    } 
+
+    /** {@inheritDoc} */
+    @Override
+    public void execute() {
+        try {
+            tool.changeKey();
+        } catch (final Exception e) {
+            log("Build failed", e, Project.MSG_ERR);
+            throw new BuildException(e);
+        }
+    }
+}
diff --git a/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/MergePropertiesTask.java b/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/MergePropertiesTask.java
new file mode 100644
index 0000000..89e7652
--- /dev/null
+++ b/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/MergePropertiesTask.java
@@ -0,0 +1,128 @@
+/*
+ * Licensed to the University Corporation for Advanced Internet Development,
+ * Inc. (UCAID) under one or more contributor license agreements.  See the
+ * NOTICE file distributed with this work for additional information regarding
+ * copyright ownership. The UCAID 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.
+ */
+
+package net.shibboleth.idp.installer.ant.impl;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.Properties;
+
+import javax.annotation.Nonnull;
+
+import net.shibboleth.idp.installer.PropertiesWithComments;
+import net.shibboleth.utilities.java.support.logic.Constraint;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.Project;
+import org.apache.tools.ant.Task;
+
+/**
+ * A class to merge a property file into another property file, preserving the comments. 
+ */
+public class MergePropertiesTask extends Task {
+
+    /** The input file. */
+    private File inFile;
+    
+    /** The output file. */
+    private File outFile;
+
+    /** The merge file. */
+    private File mergeFile;
+    
+    /** Set the input file.
+     * @param what what to set
+     */
+    public void setInFile(@Nonnull final File what) {
+        inFile = Constraint.isNotNull(what, "Provided file must not be null");
+    }
+    
+    /** Set the output file.
+     * @param what what to set
+     */
+    public void setOutFile(@Nonnull final File what) {
+        outFile = Constraint.isNotNull(what, "Provided file must not be null");
+    }
+
+    /** Set the merge file.
+     * @param what what to set
+     */
+    public void setMergeFile(@Nonnull final File what) {
+        mergeFile = Constraint.isNotNull(what, "Provided file must not be null");
+    }
+
+    /** {@inheritDoc} */
+    // Checkstyle: CyclomaticComplexity OFF
+    @Override
+    public void execute() {
+        if (null == inFile) {
+            log("Input file not provided", Project.MSG_ERR);
+            throw new BuildException("Input file not provided");
+        }
+        if (!inFile.exists()) {
+            log("Input file " + inFile.getAbsolutePath() + " does not exist");
+            throw new BuildException("Non-existent input file");
+        }
+        if (null == outFile) {
+            log("Output file not provided", Project.MSG_ERR);
+            throw new BuildException("Output file not provided");
+        }
+        if (null == mergeFile) {
+            log("Merge file not provided", Project.MSG_ERR);
+            throw new BuildException("Non-existent input file");
+        }
+        if (!mergeFile.exists()) {
+            log("Input file " + mergeFile.getAbsolutePath() + " does not exist");
+            throw new BuildException("Non-existent merge file");
+        }
+        
+        final PropertiesWithComments in = new PropertiesWithComments(); 
+
+        try (final FileInputStream stream = new FileInputStream(inFile)) {
+            in.load(stream);
+        } catch (final IOException e) {
+            log("Could not load input " + inFile.getAbsolutePath(), e, Project.MSG_ERR);
+            throw new BuildException(e);
+        }
+        
+        final Properties merge = new Properties(); 
+        try (final FileInputStream stream = new FileInputStream(mergeFile)) {
+            merge.load(stream);
+        } catch (final IOException e) {
+            log("Could not load merge " + mergeFile.getAbsolutePath(), e, Project.MSG_ERR);
+            throw new BuildException(e);
+        }
+        
+        
+        for (final Object propName:merge.keySet()) {
+            if (propName instanceof String) {
+                final String name = (String) propName;
+                in.replaceProperty(name, merge.getProperty(name));
+            } 
+        }
+
+        try (final FileOutputStream stream = new FileOutputStream(outFile)) {
+            in.store(stream);
+        } catch (final IOException e) {
+            log("Could not store output " + outFile.getAbsolutePath(), e, Project.MSG_ERR);
+            throw new BuildException(e);
+        }
+    }
+    // Checkstyle: CyclomaticComplexity ON
+}
diff --git a/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/MetadataGeneratorTask.java b/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/MetadataGeneratorTask.java
new file mode 100644
index 0000000..3f40b66
--- /dev/null
+++ b/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/MetadataGeneratorTask.java
@@ -0,0 +1,209 @@
+/*
+ * Licensed to the University Corporation for Advanced Internet Development,
+ * Inc. (UCAID) under one or more contributor license agreements.  See the
+ * NOTICE file distributed with this work for additional information regarding
+ * copyright ownership. The UCAID 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.
+ */
+
+package net.shibboleth.idp.installer.ant.impl;
+
+import java.io.File;
+import java.util.Collections;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.Project;
+import org.apache.tools.ant.Task;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.context.support.GenericApplicationContext;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.core.io.Resource;
+
+import net.shibboleth.ext.spring.util.ApplicationContextBuilder;
+import net.shibboleth.idp.installer.metadata.impl.MetadataGeneratorImpl;
+import net.shibboleth.idp.installer.metadata.impl.MetadataGeneratorParametersImpl;
+import net.shibboleth.idp.spring.IdPPropertiesApplicationContextInitializer;
+
+/**
+ * Task to generate metadata.
+ */
+public class MetadataGeneratorTask extends Task {
+
+    /** Where we collect the parameters. */
+
+    /** where to put the data. */
+    private File outputFile;
+
+    /** Where idp.home is. */
+    @Nullable private String idpHome;
+
+    /** Ant level override for the back channel certificate. */
+    @Nullable private File backchannelCert;
+
+    /** Ant level override for the DNS name. */
+    @Nullable private String dnsName;
+
+    /**
+     * Whether to comment out the SAML2 AA port.
+     */
+    private boolean saml2AttributeQueryCommented = true;
+
+    /**
+     * Whether to comment out the SAML2 SLO endpoints.
+     */
+    private boolean saml2LogoutCommented = true;
+
+    /**
+     * Where is idp.home.
+     * 
+     * @return Returns idpHome.
+     */
+    @Nullable public String getIdpHome() {
+        return idpHome;
+    }
+
+    /**
+     * Set where where is idp.home.
+     * 
+     * @param home The idpHome to set.
+     */
+    public void setIdpHome(@Nullable final String home) {
+        idpHome = home;
+    }
+
+    /**
+     * Set the output file.
+     * 
+     * @param file what to set.
+     */
+    public void setOutput(final File file) {
+
+        outputFile = file;
+    }
+
+    /**
+     * Set the Backchannel Certificate file.
+     * 
+     * @param file what to set.
+     */
+    public void setBackchannelCert(final File file) {
+        backchannelCert = file;
+    }
+
+    /**
+     * Sets the dns name.
+     * 
+     * @param name what to set.
+     */
+    public void setDnsName(final String name) {
+        dnsName = name;
+    }
+
+    /**
+     * Returns whether to comment the SAML2 AA endpoint.
+     * 
+     * @return Returns when to comment the SAML2 AA endpoint.
+     */
+    public boolean isSAML2AttributeQueryCommented() {
+        return saml2AttributeQueryCommented;
+    }
+
+    /**
+     * Sets whether to comment the SAML2 AA endpoint.
+     * 
+     * @param asComment whether to comment or not.
+     */
+    public void setSAML2AttributeQueryCommented(final boolean asComment) {
+        saml2AttributeQueryCommented = asComment;
+    }
+
+    /**
+     * Returns whether to comment the SAML2 Logout endpoints.
+     * 
+     * @return whether to comment the SAML2 Logout endpoints
+     */
+    public boolean isSAML2LogoutCommented() {
+        return saml2LogoutCommented;
+    }
+
+    /**
+     * Sets whether to comment the SAML2 Logout endpoints.
+     * 
+     * @param asComment whether to comment or not
+     */
+    public void setSAML2LogoutCommented(final boolean asComment) {
+        saml2LogoutCommented = asComment;
+    }
+
+    /** {@inheritDoc} */
+    @Override public void execute() {
+        try {
+            final MetadataGeneratorParametersImpl parameters;
+
+            final Resource resource = new ClassPathResource("net/shibboleth/idp/installer/metadata-generator-ant.xml");
+
+            final GenericApplicationContext context = new ApplicationContextBuilder()
+                    .setName(MetadataGeneratorTask.class.getName())
+                    .setServiceConfigurations(Collections.singletonList(resource))
+                    .setContextInitializer(new Initializer())
+                    .build();
+            
+            parameters = context.getBean("IdPConfiguration", MetadataGeneratorParametersImpl.class);
+
+            parameters.setBackchannelCert(backchannelCert);
+            parameters.setDnsName(dnsName);
+            parameters.initialize();
+
+            final MetadataGeneratorImpl generator = new MetadataGeneratorImpl();
+            generator.setSAML2AttributeQueryCommented(saml2AttributeQueryCommented);
+            generator.setSAML2LogoutCommented(saml2LogoutCommented);
+            generator.setParameters(parameters);
+            generator.setOutput(outputFile);
+            generator.initialize();
+            generator.generate();
+
+        } catch (final Exception e) {
+            log("Build failed", e, Project.MSG_ERR);
+            throw new BuildException(e);
+        }
+    }
+
+    // Checkstyle: CyclomaticComplexity ON
+
+    /**
+     * An initializer which knows about our idp.home.
+     * 
+     */
+    public class Initializer extends IdPPropertiesApplicationContextInitializer {
+
+        /** {@inheritDoc} */
+        @Override @Nonnull public String selectSearchLocation(
+                @Nonnull final ConfigurableApplicationContext applicationContext) {
+            if (null == idpHome) {
+                return super.selectSearchLocation(applicationContext);
+            }
+            return idpHome;
+        }
+
+        /** {@inheritDoc} */
+        @Override @Nonnull public String getSearchLocation() {
+            if (null == idpHome) {
+                return super.getSearchLocation();
+            }
+            return idpHome;
+        }
+
+    }
+}
diff --git a/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/RewritePropertiesTask.java b/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/RewritePropertiesTask.java
new file mode 100644
index 0000000..8c86320
--- /dev/null
+++ b/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/RewritePropertiesTask.java
@@ -0,0 +1,117 @@
+/*
+ * Licensed to the University Corporation for Advanced Internet Development,
+ * Inc. (UCAID) under one or more contributor license agreements.  See the
+ * NOTICE file distributed with this work for additional information regarding
+ * copyright ownership. The UCAID 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.
+ */
+
+package net.shibboleth.idp.installer.ant.impl;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+import javax.annotation.Nonnull;
+
+import net.shibboleth.idp.installer.PropertiesWithComments;
+import net.shibboleth.utilities.java.support.logic.Constraint;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.Project;
+import org.apache.tools.ant.Task;
+
+/**
+ * A class to rename the property names in a property file, preserving the comments. 
+ */
+public class RewritePropertiesTask extends Task {
+
+    /** The input file. */
+    private File inFile;
+    
+    /** The output file. */
+    private File outFile;
+
+    /** The names file. */
+    private File propertyNameFile;
+    
+    /** Set the input file.
+     * @param what what to set
+     */
+    public void setInFile(@Nonnull final File what) {
+        inFile = Constraint.isNotNull(what, "Provided file must not be null");
+    }
+    
+    /** Set the output file.
+     * @param what what to set
+     */
+    public void setOutFile(@Nonnull final File what) {
+        outFile = Constraint.isNotNull(what, "Provided file must not be null");
+    }
+
+    /** Set the merge file.
+     * @param what what to set
+     */
+    public void setPropertyNameFile(@Nonnull final File what) {
+        propertyNameFile = Constraint.isNotNull(what, "Provided file must not be null");
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public void execute() {
+        if (null == inFile) {
+            log("Input file not provided", Project.MSG_ERR);
+            throw new BuildException("Input file not provided");
+        }
+        if (!inFile.exists()) {
+            log("Input file " + inFile.getAbsolutePath() + " does not exist");
+            throw new BuildException("Non-existent input file");
+        }
+        if (null == outFile) {
+            log("Output file not provided", Project.MSG_ERR);
+            throw new BuildException("Non-existent output file");
+        }
+        
+        if (null == propertyNameFile) {
+            log("Property Name file not provided", Project.MSG_ERR);
+            throw new BuildException("Non-existent input file");
+        }
+        if (!propertyNameFile.exists()) {
+            log("Input file " + propertyNameFile.getAbsolutePath() + " does not exist");
+            throw new BuildException("Non-existent property file");
+        }
+        
+        final PropertiesWithComments properties = new PropertiesWithComments(); 
+        try (final InputStream in = new FileInputStream(propertyNameFile)) {
+            properties.loadNameReplacement(in);
+        } catch (final IOException e) {
+            log("Could not load name replacements " + propertyNameFile.getAbsolutePath(), e, Project.MSG_ERR);
+            throw new BuildException(e);
+        }
+
+        try (final InputStream in = new FileInputStream(inFile)) { 
+            properties.load(in);
+        } catch (final IOException e) {
+            log("Could not load input " + inFile.getAbsolutePath(), e, Project.MSG_ERR);
+            throw new BuildException(e);
+        }
+        
+        try (final FileOutputStream out = new FileOutputStream(outFile)) {
+            properties.store(out);
+        } catch (final IOException e) {
+            log("Could not store output " + outFile.getAbsolutePath(), e, Project.MSG_ERR);
+            throw new BuildException(e);
+        }
+    }
+}
diff --git a/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/SelfSignedCertificateGeneratorTask.java b/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/SelfSignedCertificateGeneratorTask.java
new file mode 100644
index 0000000..73d85e9
--- /dev/null
+++ b/idp-installer/src/main/java/net/shibboleth/idp/installer/ant/impl/SelfSignedCertificateGeneratorTask.java
@@ -0,0 +1,171 @@
+/*
+ * Licensed to the University Corporation for Advanced Internet Development,
+ * Inc. (UCAID) under one or more contributor license agreements.  See the
+ * NOTICE file distributed with this work for additional information regarding
+ * copyright ownership. The UCAID 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.
+ */
+
+package net.shibboleth.idp.installer.ant.impl;
+
+import java.io.File;
+import java.util.List;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+import net.shibboleth.utilities.java.support.annotation.constraint.NonnullElements;
+import net.shibboleth.utilities.java.support.annotation.constraint.NotEmpty;
+import net.shibboleth.utilities.java.support.annotation.constraint.Positive;
+import net.shibboleth.utilities.java.support.primitive.StringSupport;
+import net.shibboleth.utilities.java.support.security.SelfSignedCertificateGenerator;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.Project;
+import org.apache.tools.ant.Task;
+
+/**
+ * Task to shim around {@link SelfSignedCertificateGenerator}.
+ */
+public class SelfSignedCertificateGeneratorTask extends Task {
+
+    /** Our wrapped {@link SelfSignedCertificateGenerator}. */
+    private SelfSignedCertificateGenerator generator;
+
+    /**
+     * Constructor.
+     */
+    public SelfSignedCertificateGeneratorTask() {
+        generator = new SelfSignedCertificateGenerator();
+    }
+
+    /**
+     * Set the type of key that will be generated. Defaults to RSA.
+     * 
+     * @param type type of key that will be generated
+     */
+    public void setKeyType(@Nonnull @NotEmpty final String type) {
+        generator.setKeyType(type);
+    }
+
+    /**
+     * Set the size of the generated key. Defaults to 2048
+     * 
+     * @param size size of the generated key
+     */
+    public void setKeySize(@Positive final int size) {
+        generator.setKeySize(size);
+    }
+
+    /**
+     * Set the number of years for which the certificate will be valid.
+     * 
+     * @param lifetime number of years for which the certificate will be valid
+     */
+    public void setCertificateLifetime(@Positive final int lifetime) {
+        generator.setCertificateLifetime(lifetime);
+    }
+
+    /**
+     * Set the certificate algorithm that will be used. Defaults to SHA256withRSA.
+     * 
+     * @param alg certificate algorithm
+     */
+    public void setCertificateAlg(@Nonnull @NotEmpty final String alg) {
+        generator.setCertificateAlg(alg);
+    }
+
+    /**
+     * Set the hostname that will appear in the certificate's DN.
+     * 
+     * @param name hostname that will appear in the certificate's DN
+     */
+    public void setHostName(@Nonnull @NotEmpty final String name) {
+        generator.setHostName(name);
+    }
+
+    /**
+     * Set the file to which the private key will be written.
+     * 
+     * @param file file to which the private key will be written
+     */
+    public void setPrivateKeyFile(@Nullable final File file) {
+        generator.setPrivateKeyFile(file);
+    }
+
+    /**
+     * Set the file to which the certificate will be written.
+     * 
+     * @param file file to which the certificate will be written
+     */
+    public void setCertificateFile(@Nullable final File file) {
+        generator.setCertificateFile(file);
+    }
+
+    /**
+     * Set the type of keystore to create.
+     * 
+     * @param type keystore type
+     */
+    public void setKeystoreType(@Nonnull @NotEmpty final String type) {
+        generator.setKeystoreType(type);
+    }
+
+    /**
+     * Set the file to which the keystore will be written.
+     * 
+     * @param file file to which the keystore will be written
+     */
+    public void setKeystoreFile(@Nullable final File file) {
+        generator.setKeystoreFile(file);
+    }
+
+    /**
+     * Set the password for the generated keystore.
+     * 
+     * @param password password for the generated keystore
+     */
+    public void setKeystorePassword(@Nullable final String password) {
+        generator.setKeystorePassword(password);
+    }
+
+    /**
+     * Set the optional DNS subject alt names.
+     * 
+     * @param altNames collection of subject alt names.
+     */
+    public void setDNSSubjectAltNames(@Nonnull @NonnullElements final String altNames) {
+        final List<String> nameList = StringSupport.stringToList(altNames, " ");
+        generator.setDNSSubjectAltNames(nameList);
+    }
+
+    /**
+     * Set the optional URI subject alt names.
+     * 
+     * @param subjectAltNames collection of subject alt names.
+     */
+    public void setURISubjectAltNames(@Nonnull @NonnullElements final String subjectAltNames) {
+        final List<String> nameList = StringSupport.stringToList(subjectAltNames, " ");
+        generator.setURISubjectAltNames(nameList);
+    }
+
+    @Override 
+    /** {@inheritDoc} */
+    public void execute() {
+        try {
+            generator.generate();
+        } catch (final Exception e) {
+            log("Build failed", e, Project.MSG_ERR);
+            throw new BuildException(e);
+        }
+    }
+}
diff --git a/idp-installer/src/main/resources/net/shibboleth/idp/installer/ant.xml b/idp-installer/src/main/resources/net/shibboleth/idp/installer/ant.xml
index 9c286dd..5f80174 100644
--- a/idp-installer/src/main/resources/net/shibboleth/idp/installer/ant.xml
+++ b/idp-installer/src/main/resources/net/shibboleth/idp/installer/ant.xml
@@ -1,4 +1,7 @@
 <?xml version="1.0"?>
 <antlib>
+    <taskdef name="selfsignedcert" classname="net.shibboleth.idp.installer.ant.impl.SelfSignedCertificateGeneratorTask"/>
+    <taskdef name="mergeproperties" classname="net.shibboleth.idp.installer.ant.impl.MergePropertiesTask"/>
+    <taskdef name="rewriteproperties" classname="net.shibboleth.idp.installer.ant.impl.RewritePropertiesTask"/>
     <taskdef name="v4install" classname="net.shibboleth.idp.installer.ant.impl.V4InstallTask"/>
 </antlib>
\ No newline at end of file
diff --git a/idp-installer/src/main/resources/net/shibboleth/idp/installer/metadata-generator-ant.xml b/idp-installer/src/main/resources/net/shibboleth/idp/installer/metadata-generator-ant.xml
new file mode 100644
index 0000000..d739eb0
--- /dev/null
+++ b/idp-installer/src/main/resources/net/shibboleth/idp/installer/metadata-generator-ant.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:context="http://www.springframework.org/schema/context"
+	xmlns:util="http://www.springframework.org/schema/util" xmlns:p="http://www.springframework.org/schema/p"
+	xmlns:c="http://www.springframework.org/schema/c" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
+                           http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
+                           http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
+	<bean
+		class="org.springframework.context.support.PropertySourcesPlaceholderConfigurer"
+		p:placeholderPrefix="%{" p:placeholderSuffix="}" />
+
+    <context:property-placeholder />
+
+	<bean id="IdPConfiguration"
+		class="net.shibboleth.idp.installer.metadata.impl.MetadataGeneratorParametersImpl"
+		p:encryptionCertResource="%{idp.encryption.cert}" p:signingCertResource="%{idp.signing.cert}"
+		p:entityID="%{idp.entityID}" p:scope="%{idp.scope}" />
+</beans>
\ No newline at end of file

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