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Introduce plugin system to deal with provider config and lifecycle
Signed-off-by: nscuro <nscuro@protonmail.com>
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106 changes: 106 additions & 0 deletions
106
src/main/java/org/dependencytrack/plugin/ConfigRegistry.java
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/* | ||
* This file is part of Dependency-Track. | ||
* | ||
* Licensed 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. | ||
* | ||
* SPDX-License-Identifier: Apache-2.0 | ||
* Copyright (c) OWASP Foundation. All Rights Reserved. | ||
*/ | ||
package org.dependencytrack.plugin; | ||
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import alpine.Config; | ||
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import java.util.Optional; | ||
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import static java.util.Objects.requireNonNull; | ||
import static org.dependencytrack.persistence.jdbi.JdbiFactory.withJdbiHandle; | ||
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/** | ||
* A read-only registry for accessing application configuration. | ||
* <p> | ||
* The registry enforces namespacing of property names, | ||
* to prevent {@link Provider}s from accessing values | ||
* belonging to the core application, or other plugins. | ||
* <p> | ||
* Namespacing is based on the plugin's, and the provider's name. | ||
* Provider {@code foo} of plugin {@code bar} can access: | ||
* <ul> | ||
* <li>Runtime properties with {@code groupName} of {@code plugin} and {@code propertyName} starting with {@code bar.provider.foo}</li> | ||
* <li>Deployment properties prefix {@code bar.provider.foo}</li> | ||
* </ul> | ||
* <p> | ||
* Runtime properties are sourced from the {@code CONFIGPROPERTY} database table. | ||
* Deployment properties are sourced from environment variables, and the {@code application.properties} file. | ||
* | ||
* @since 5.6.0 | ||
*/ | ||
public class ConfigRegistry { | ||
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private final String pluginName; | ||
private final String providerName; | ||
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public ConfigRegistry(final String pluginName, final String providerName) { | ||
this.pluginName = requireNonNull(pluginName); | ||
this.providerName = requireNonNull(providerName); | ||
} | ||
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/** | ||
* @param propertyName Name of the runtime property. | ||
* @return An {@link Optional} holding the property value, or {@link Optional#empty()}. | ||
*/ | ||
public Optional<String> getRuntimeProperty(final String propertyName) { | ||
final String namespacedPropertyName = "%s.provider.%s.%s".formatted(pluginName, providerName, propertyName); | ||
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return withJdbiHandle(handle -> handle.createQuery(""" | ||
SELECT "PROPERTYVALUE" | ||
FROM "CONFIGPROPERTY" | ||
WHERE "GROUPNAME" = 'plugin' | ||
AND "PROPERTYNAME" = :propertyName | ||
""") | ||
.bind("propertyName", namespacedPropertyName) | ||
.mapTo(String.class) | ||
.findOne()); | ||
} | ||
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/** | ||
* @param propertyName Name of the deployment property. | ||
* @return An {@link Optional} holding the property value, or {@link Optional#empty()}. | ||
*/ | ||
public Optional<String> getDeploymentProperty(final String propertyName) { | ||
final var key = new DeploymentConfigKey(pluginName, providerName, propertyName); | ||
return Optional.ofNullable(Config.getInstance().getProperty(key)); | ||
} | ||
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record DeploymentConfigKey(String pluginName, String providerName, String name) implements Config.Key { | ||
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DeploymentConfigKey(final String pluginName, final String name) { | ||
this(pluginName, null, name); | ||
} | ||
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@Override | ||
public String getPropertyName() { | ||
if (providerName == null) { | ||
return "%s.%s".formatted(pluginName, name); | ||
} | ||
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return "%s.provider.%s.%s".formatted(pluginName, providerName, name); | ||
} | ||
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@Override | ||
public Object getDefaultValue() { | ||
return null; | ||
} | ||
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} | ||
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} |
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/* | ||
* This file is part of Dependency-Track. | ||
* | ||
* Licensed 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. | ||
* | ||
* SPDX-License-Identifier: Apache-2.0 | ||
* Copyright (c) OWASP Foundation. All Rights Reserved. | ||
*/ | ||
package org.dependencytrack.plugin; | ||
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/** | ||
* @since 5.6.0 | ||
*/ | ||
public interface Plugin { | ||
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/** | ||
* @return The name of the plugin. Can contain lowercase letters, numbers, and periods. | ||
*/ | ||
String name(); | ||
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/** | ||
* @return Whether this plugin is required. Required plugins must have at least one active {@link Provider}. | ||
*/ | ||
boolean required(); | ||
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/** | ||
* @return Class of the {@link ProviderFactory} | ||
*/ | ||
Class<? extends ProviderFactory<? extends Provider>> providerFactoryClass(); | ||
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/** | ||
* @return Class of the {@link Provider} | ||
*/ | ||
Class<? extends Provider> providerClass(); | ||
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} |
47 changes: 47 additions & 0 deletions
47
src/main/java/org/dependencytrack/plugin/PluginInitializer.java
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/* | ||
* This file is part of Dependency-Track. | ||
* | ||
* Licensed 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. | ||
* | ||
* SPDX-License-Identifier: Apache-2.0 | ||
* Copyright (c) OWASP Foundation. All Rights Reserved. | ||
*/ | ||
package org.dependencytrack.plugin; | ||
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import alpine.common.logging.Logger; | ||
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import javax.servlet.ServletContextEvent; | ||
import javax.servlet.ServletContextListener; | ||
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/** | ||
* @since 5.6.0 | ||
*/ | ||
public class PluginInitializer implements ServletContextListener { | ||
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private static final Logger LOGGER = Logger.getLogger(PluginInitializer.class); | ||
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private final PluginManager pluginManager = PluginManager.getInstance(); | ||
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@Override | ||
public void contextInitialized(final ServletContextEvent event) { | ||
LOGGER.info("Loading plugins"); | ||
pluginManager.loadPlugins(); | ||
} | ||
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@Override | ||
public void contextDestroyed(final ServletContextEvent event) { | ||
LOGGER.info("Unloading plugins"); | ||
pluginManager.unloadPlugins(); | ||
} | ||
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} |
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