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org.owasp.dependencycheck.maven.BaseDependencyCheckMojo Maven / Gradle / Ivy

/*
 * This file is part of dependency-check-maven.
 *
 * 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.
 *
 * Copyright (c) 2014 Jeremy Long. All Rights Reserved.
 */
package org.owasp.dependencycheck.maven;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.util.List;
import java.util.Locale;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.metadata.ArtifactMetadataRetrievalException;
import org.apache.maven.artifact.metadata.ArtifactMetadataSource;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.versioning.ArtifactVersion;
import org.apache.maven.doxia.sink.Sink;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.plugins.annotations.Component;
import org.apache.maven.plugins.annotations.Parameter;
import org.apache.maven.project.MavenProject;
import org.apache.maven.reporting.MavenReport;
import org.apache.maven.reporting.MavenReportException;
import org.apache.maven.settings.Proxy;
import org.owasp.dependencycheck.data.nexus.MavenArtifact;
import org.owasp.dependencycheck.data.nvdcve.CveDB;
import org.owasp.dependencycheck.data.nvdcve.DatabaseException;
import org.owasp.dependencycheck.data.nvdcve.DatabaseProperties;
import org.owasp.dependencycheck.dependency.Confidence;
import org.owasp.dependencycheck.dependency.Dependency;
import org.owasp.dependencycheck.dependency.Identifier;
import org.owasp.dependencycheck.dependency.Vulnerability;
import org.owasp.dependencycheck.reporting.ReportGenerator;
import org.owasp.dependencycheck.utils.DependencyVersion;
import org.owasp.dependencycheck.utils.LogUtils;
import org.owasp.dependencycheck.utils.Settings;

/**
 *
 * @author Jeremy Long
 */
public abstract class BaseDependencyCheckMojo extends AbstractMojo implements MavenReport {

    //
    /**
     * Logger field reference.
     */
    private static final Logger LOGGER = Logger.getLogger(BaseDependencyCheckMojo.class.getName());
    /**
     * The properties file location.
     */
    private static final String PROPERTIES_FILE = "mojo.properties";
    /**
     * Name of the logging properties file.
     */
    private static final String LOG_PROPERTIES_FILE = "log.properties";
    /**
     * System specific new line character.
     */
    private static final String NEW_LINE = System.getProperty("line.separator", "\n").intern();
    /**
     * Sets whether or not the external report format should be used.
     */
    @Parameter(property = "metaFileName", defaultValue = "dependency-check.ser", required = true)
    private String dataFileName;

    //
    // 
    /**
     * The Maven Project Object.
     */
    @Component
    private MavenProject project;
    /**
     * The meta data source for retrieving artifact version information.
     */
    @Component
    private ArtifactMetadataSource metadataSource;
    /**
     * A reference to the local repository.
     */
    @Parameter(property = "localRepository", readonly = true)
    private ArtifactRepository localRepository;
    /**
     * References to the remote repositories.
     */
    @Parameter(property = "project.remoteArtifactRepositories", readonly = true)
    private List remoteRepositories;
    /**
     * List of Maven project of the current build
     */
    @Parameter(readonly = true, required = true, property = "reactorProjects")
    private List reactorProjects;
    /**
     * The path to the verbose log.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "logFile", defaultValue = "")
    private String logFile = null;

    //"project.reporting.outputDirectory"
    /**
     * The output directory. This generally maps to "target".
     */
    @Parameter(defaultValue = "${project.build.directory}", required = true)
    private File outputDirectory;
    /**
     * Specifies the destination directory for the generated Dependency-Check report. This generally maps to "target/site".
     */
    //Parameter(property = "reportOutputDirectory", defaultValue = "${project.reporting.outputDirectory}", required = true)
    @Parameter(property = "project.reporting.outputDirectory", required = true)
    private File reportOutputDirectory;
    /**
     * Specifies if the build should be failed if a CVSS score above a specified level is identified. The default is 11 which
     * means since the CVSS scores are 0-10, by default the build will never fail.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "failBuildOnCVSS", defaultValue = "11", required = true)
    private float failBuildOnCVSS = 11;
    /**
     * Sets whether auto-updating of the NVD CVE/CPE data is enabled. It is not recommended that this be turned to false. Default
     * is true.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "autoupdate", defaultValue = "true", required = true)
    private boolean autoUpdate = true;
    /**
     * Generate aggregate reports in multi-module projects.
     *
     * @deprecated use the aggregate goal instead
     */
    @Parameter(property = "aggregate", defaultValue = "false")
    @Deprecated
    private boolean aggregate;
    /**
     * The report format to be generated (HTML, XML, VULN, ALL). This configuration option has no affect if using this within the
     * Site plug-in unless the externalReport is set to true. Default is HTML.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "format", defaultValue = "HTML", required = true)
    private String format = "HTML";
    /**
     * The Maven settings.
     */
    @Parameter(property = "mavenSettings", defaultValue = "${settings}", required = false)
    private org.apache.maven.settings.Settings mavenSettings;

    /**
     * The maven settings proxy id.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "mavenSettingsProxyId", required = false)
    private String mavenSettingsProxyId;

    /**
     * The Connection Timeout.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "connectionTimeout", defaultValue = "", required = false)
    private String connectionTimeout = null;
    /**
     * The path to the suppression file.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "suppressionFile", defaultValue = "", required = false)
    private String suppressionFile = null;
    /**
     * Flag indicating whether or not to show a summary in the output.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "showSummary", defaultValue = "true", required = false)
    private boolean showSummary = true;

    /**
     * Whether or not the Jar Analyzer is enabled.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "jarAnalyzerEnabled", defaultValue = "true", required = false)
    private boolean jarAnalyzerEnabled = true;

    /**
     * Whether or not the Archive Analyzer is enabled.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "archiveAnalyzerEnabled", defaultValue = "true", required = false)
    private boolean archiveAnalyzerEnabled = true;

    /**
     * Whether or not the .NET Assembly Analyzer is enabled.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "assemblyAnalyzerEnabled", defaultValue = "true", required = false)
    private boolean assemblyAnalyzerEnabled = true;

    /**
     * Whether or not the .NET Nuspec Analyzer is enabled.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "nuspecAnalyzerEnabled", defaultValue = "true", required = false)
    private boolean nuspecAnalyzerEnabled = true;

    /**
     * Whether or not the Central Analyzer is enabled.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "centralAnalyzerEnabled", defaultValue = "true", required = false)
    private boolean centralAnalyzerEnabled = true;

    /**
     * Whether or not the Nexus Analyzer is enabled.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "nexusAnalyzerEnabled", defaultValue = "true", required = false)
    private boolean nexusAnalyzerEnabled = true;

    /**
     * The URL of a Nexus server's REST API end point (http://domain/nexus/service/local).
     */
    @Parameter(property = "nexusUrl", defaultValue = "", required = false)
    private String nexusUrl;
    /**
     * Whether or not the configured proxy is used to connect to Nexus.
     */
    @Parameter(property = "nexusUsesProxy", defaultValue = "true", required = false)
    private boolean nexusUsesProxy = true;
    /**
     * The database connection string.
     */
    @Parameter(property = "connectionString", defaultValue = "", required = false)
    private String connectionString;
    /**
     * The database driver name. An example would be org.h2.Driver.
     */
    @Parameter(property = "databaseDriverName", defaultValue = "", required = false)
    private String databaseDriverName;
    /**
     * The path to the database driver if it is not on the class path.
     */
    @Parameter(property = "databaseDriverPath", defaultValue = "", required = false)
    private String databaseDriverPath;
    /**
     * The database user name.
     */
    @Parameter(property = "databaseUser", defaultValue = "", required = false)
    private String databaseUser;
    /**
     * The password to use when connecting to the database.
     */
    @Parameter(property = "databasePassword", defaultValue = "", required = false)
    private String databasePassword;
    /**
     * A comma-separated list of file extensions to add to analysis next to jar, zip, ....
     */
    @Parameter(property = "zipExtensions", required = false)
    private String zipExtensions;
    /**
     * Skip Analysis for Test Scope Dependencies.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "skipTestScope", defaultValue = "true", required = false)
    private boolean skipTestScope = true;
    /**
     * Skip Analysis for Runtime Scope Dependencies.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "skipRuntimeScope", defaultValue = "false", required = false)
    private boolean skipRuntimeScope = false;
    /**
     * Skip Analysis for Provided Scope Dependencies.
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "skipProvidedScope", defaultValue = "false", required = false)
    private boolean skipProvidedScope = false;
    /**
     * The data directory, hold DC SQL DB.
     */
    @Parameter(property = "dataDirectory", defaultValue = "", required = false)
    private String dataDirectory;
    /**
     * Data Mirror URL for CVE 1.2.
     */
    @Parameter(property = "cveUrl12Modified", defaultValue = "", required = false)
    private String cveUrl12Modified;
    /**
     * Data Mirror URL for CVE 2.0.
     */
    @Parameter(property = "cveUrl20Modified", defaultValue = "", required = false)
    private String cveUrl20Modified;
    /**
     * Base Data Mirror URL for CVE 1.2.
     */
    @Parameter(property = "cveUrl12Base", defaultValue = "", required = false)
    private String cveUrl12Base;
    /**
     * Data Mirror URL for CVE 2.0.
     */
    @Parameter(property = "cveUrl20Base", defaultValue = "", required = false)
    private String cveUrl20Base;

    /**
     * The path to mono for .NET Assembly analysis on non-windows systems.
     */
    @Parameter(property = "pathToMono", defaultValue = "", required = false)
    private String pathToMono;

    /**
     * The Proxy URL.
     *
     * @deprecated Please use mavenSettings instead
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "proxyUrl", defaultValue = "", required = false)
    @Deprecated
    private String proxyUrl = null;
    /**
     * Sets whether or not the external report format should be used.
     *
     * @deprecated the internal report is no longer supported
     */
    @SuppressWarnings("CanBeFinal")
    @Parameter(property = "externalReport")
    @Deprecated
    private String externalReport = null;
    // 
    //

    /**
     * Executes dependency-check.
     *
     * @throws MojoExecutionException thrown if there is an exception executing the mojo
     * @throws MojoFailureException thrown if dependency-check failed the build
     */
    @Override
    public void execute() throws MojoExecutionException, MojoFailureException {
        validateAggregate();
        project.setContextValue(getOutputDirectoryContextKey(), this.outputDirectory);
        runCheck();
    }

    /**
     * Checks if the aggregate configuration parameter has been set to true. If it has a MojoExecutionException is thrown because
     * the aggregate configuration parameter is no longer supported.
     *
     * @throws MojoExecutionException thrown if aggregate is set to true
     */
    private void validateAggregate() throws MojoExecutionException {
        if (aggregate) {
            final String msg = "Aggregate configuration detected - as of dependency-check 1.2.8 this no longer supported. "
                    + "Please use the aggregate goal instead.";
            throw new MojoExecutionException(msg);
        }
    }

    /**
     * Generates the Dependency-Check Site Report.
     *
     * @param sink the sink to write the report to
     * @param locale the locale to use when generating the report
     * @throws MavenReportException if a maven report exception occurs
     * @deprecated use {@link #generate(org.apache.maven.doxia.sink.Sink, java.util.Locale)} instead.
     */
    @Deprecated
    public final void generate(@SuppressWarnings("deprecation") org.codehaus.doxia.sink.Sink sink, Locale locale) throws MavenReportException {
        generate((Sink) sink, locale);
    }

    /**
     * Generates the Dependency-Check Site Report.
     *
     * @param sink the sink to write the report to
     * @param locale the locale to use when generating the report
     * @throws MavenReportException if a maven report exception occurs
     */
    public void generate(Sink sink, Locale locale) throws MavenReportException {
        try {
            validateAggregate();
        } catch (MojoExecutionException ex) {
            throw new MavenReportException(ex.getMessage());
        }
        project.setContextValue(getOutputDirectoryContextKey(), getReportOutputDirectory());
        try {
            runCheck();
        } catch (MojoExecutionException ex) {
            throw new MavenReportException(ex.getMessage(), ex);
        } catch (MojoFailureException ex) {
            LOGGER.warning("Vulnerabilities were identifies that exceed the CVSS threshold for failing the build");
        }
    }

    /**
     * Returns the correct output directory depending on if a site is being executed or not.
     *
     * @return the directory to write the report(s)
     * @throws MojoExecutionException thrown if there is an error loading the file path
     */
    protected File getCorrectOutputDirectory() throws MojoExecutionException {
        return getCorrectOutputDirectory(this.project);
    }

    /**
     * Returns the correct output directory depending on if a site is being executed or not.
     *
     * @param current the Maven project to get the output directory from
     * @return the directory to write the report(s)
     */
    protected File getCorrectOutputDirectory(MavenProject current) {
        final Object obj = current.getContextValue(getOutputDirectoryContextKey());
        if (obj != null && obj instanceof File) {
            return (File) obj;
        }
        File target = new File(current.getBuild().getDirectory());
        if (target.getParentFile() != null && "target".equals(target.getParentFile().getName())) {
            target = target.getParentFile();
        }
        return target;
    }

    /**
     * Returns the correct output directory depending on if a site is being executed or not.
     *
     * @param current the Maven project to get the output directory from
     * @return the directory to write the report(s)
     */
    protected File getDataFile(MavenProject current) {
        LOGGER.fine(String.format("Getting data filefor %s using key '%s'", current.getName(), getDataFileContextKey()));
        final Object obj = current.getContextValue(getDataFileContextKey());
        if (obj != null) {
            if (obj instanceof File) {
                return (File) obj;
            }
        } else {
            LOGGER.fine("Context value not found");
        }
        return null;
    }

    /**
     * Scans the project's artifacts and adds them to the engine's dependency list.
     *
     * @param project the project to scan the dependencies of
     * @param engine the engine to use to scan the dependencies
     */
    protected void scanArtifacts(MavenProject project, Engine engine) {
        for (Artifact a : project.getArtifacts()) {
            if (excludeFromScan(a)) {
                continue;
            }
            final List deps = engine.scan(a.getFile().getAbsoluteFile());
            if (deps != null) {
                if (deps.size() == 1) {
                    final Dependency d = deps.get(0);
                    if (d != null) {
                        final MavenArtifact ma = new MavenArtifact(a.getGroupId(), a.getArtifactId(), a.getVersion());
                        d.addAsEvidence("pom", ma, Confidence.HIGHEST);
                        d.addProjectReference(project.getName());
                        LOGGER.fine(String.format("Adding project reference %s on dependency %s", project.getName(),
                                d.getDisplayFileName()));
                        if (metadataSource != null) {
                            try {
                                final DependencyVersion currentVersion = new DependencyVersion(a.getVersion());
                                final List versions = metadataSource.retrieveAvailableVersions(a,
                                        localRepository, remoteRepositories);
                                for (ArtifactVersion av : versions) {
                                    final DependencyVersion newVersion = new DependencyVersion(av.toString());
                                    if (currentVersion.compareTo(newVersion) < 0) {
                                        d.addAvailableVersion(av.toString());
                                    }
                                }
                            } catch (ArtifactMetadataRetrievalException ex) {
                                LOGGER.log(Level.WARNING,
                                        "Unable to check for new versions of dependencies; see the log for more details.");
                                LOGGER.log(Level.FINE, null, ex);
                            } catch (Throwable t) {
                                LOGGER.log(Level.WARNING,
                                        "Unexpected error occured checking for new versions; see the log for more details.");
                                LOGGER.log(Level.FINE, "", t);
                            }
                        }
                    }
                } else {
                    final String msg = String.format("More then 1 dependency was identified in first pass scan of '%s:%s:%s'",
                            a.getGroupId(), a.getArtifactId(), a.getVersion());
                    LOGGER.fine(msg);
                }
            }
        }
    }

    /**
     * Executes the dependency-check scan and generates the necassary report.
     *
     * @throws MojoExecutionException thrown if there is an exception running the scan
     * @throws MojoFailureException thrown if dependency-check is configured to fail the build
     */
    public abstract void runCheck() throws MojoExecutionException, MojoFailureException;

    /**
     * Sets the Reporting output directory.
     *
     * @param directory the output directory
     */
    @Override
    public void setReportOutputDirectory(File directory) {
        reportOutputDirectory = directory;
    }

    /**
     * Returns the report output directory.
     *
     * @return the report output directory
     */
    @Override
    public File getReportOutputDirectory() {
        return reportOutputDirectory;
    }

    /**
     * Returns the output directory.
     *
     * @return the output directory
     */
    public File getOutputDirectory() {
        return outputDirectory;
    }

    /**
     * Returns whether this is an external report. This method always returns true.
     *
     * @return true
     */
    @Override
    public final boolean isExternalReport() {
        return true;
    }

    /**
     * Returns the output name.
     *
     * @return the output name
     */
    public String getOutputName() {
        if ("HTML".equalsIgnoreCase(this.format) || "ALL".equalsIgnoreCase(this.format)) {
            return "dependency-check-report";
        } else if ("XML".equalsIgnoreCase(this.format)) {
            return "dependency-check-report.xml#";
        } else if ("VULN".equalsIgnoreCase(this.format)) {
            return "dependency-check-vulnerability";
        } else {
            LOGGER.log(Level.WARNING, "Unknown report format used during site generation.");
            return "dependency-check-report";
        }
    }

    /**
     * Returns the category name.
     *
     * @return the category name
     */
    public String getCategoryName() {
        return MavenReport.CATEGORY_PROJECT_REPORTS;
    }
    //

    /**
     * Initializes a new Engine that can be used for scanning.
     *
     * @return a newly instantiated Engine
     * @throws DatabaseException thrown if there is a database exception
     */
    protected Engine initializeEngine() throws DatabaseException {
        final InputStream in = BaseDependencyCheckMojo.class
                .getClassLoader().getResourceAsStream(LOG_PROPERTIES_FILE);
        LogUtils.prepareLogger(in, logFile);

        populateSettings();

        return new Engine(this.project,
                this.reactorProjects);
    }

    /**
     * Takes the properties supplied and updates the dependency-check settings. Additionally, this sets the system properties
     * required to change the proxy url, port, and connection timeout.
     */
    private void populateSettings() {
        Settings.initialize();
        InputStream mojoProperties = null;
        try {
            mojoProperties = this.getClass().getClassLoader().getResourceAsStream(PROPERTIES_FILE);
            Settings.mergeProperties(mojoProperties);
        } catch (IOException ex) {
            LOGGER.log(Level.WARNING, "Unable to load the dependency-check ant task.properties file.");
            LOGGER.log(Level.FINE, null, ex);
        } finally {
            if (mojoProperties != null) {
                try {
                    mojoProperties.close();
                } catch (IOException ex) {
                    LOGGER.log(Level.FINEST, null, ex);
                }
            }
        }

        Settings.setBoolean(Settings.KEYS.AUTO_UPDATE, autoUpdate);
        if (externalReport != null) {
            LOGGER.warning("The 'externalReport' option was set; this configuration option has been removed. "
                    + "Please update the dependency-check-maven plugin's configuration");
        }

        if (proxyUrl != null && !proxyUrl.isEmpty()) {
            LOGGER.warning("Deprecated configuration detected, proxyUrl will be ignored; use the maven settings " + "to configure the proxy instead");
        }
        final Proxy proxy = getMavenProxy();
        if (proxy != null) {
            Settings.setString(Settings.KEYS.PROXY_SERVER, proxy.getHost());
            Settings.setString(Settings.KEYS.PROXY_PORT, Integer.toString(proxy.getPort()));
            final String userName = proxy.getUsername();
            final String password = proxy.getPassword();
            if (userName != null) {
                Settings.setString(Settings.KEYS.PROXY_USERNAME, userName);
            }
            if (password != null) {
                Settings.setString(Settings.KEYS.PROXY_PASSWORD, password);
            }

        }

        if (connectionTimeout != null && !connectionTimeout.isEmpty()) {
            Settings.setString(Settings.KEYS.CONNECTION_TIMEOUT, connectionTimeout);
        }
        if (suppressionFile != null && !suppressionFile.isEmpty()) {
            Settings.setString(Settings.KEYS.SUPPRESSION_FILE, suppressionFile);
        }

        //File Type Analyzer Settings
        //JAR ANALYZER
        Settings.setBoolean(Settings.KEYS.ANALYZER_JAR_ENABLED, jarAnalyzerEnabled);
        //NUSPEC ANALYZER
        Settings.setBoolean(Settings.KEYS.ANALYZER_NUSPEC_ENABLED, nuspecAnalyzerEnabled);
        //NEXUS ANALYZER
        Settings.setBoolean(Settings.KEYS.ANALYZER_CENTRAL_ENABLED, centralAnalyzerEnabled);
        //NEXUS ANALYZER
        Settings.setBoolean(Settings.KEYS.ANALYZER_NEXUS_ENABLED, nexusAnalyzerEnabled);
        if (nexusUrl != null && !nexusUrl.isEmpty()) {
            Settings.setString(Settings.KEYS.ANALYZER_NEXUS_URL, nexusUrl);
        }
        Settings.setBoolean(Settings.KEYS.ANALYZER_NEXUS_PROXY, nexusUsesProxy);
        //ARCHIVE ANALYZER
        Settings.setBoolean(Settings.KEYS.ANALYZER_ARCHIVE_ENABLED, archiveAnalyzerEnabled);
        if (zipExtensions != null && !zipExtensions.isEmpty()) {
            Settings.setString(Settings.KEYS.ADDITIONAL_ZIP_EXTENSIONS, zipExtensions);
        }
        //ASSEMBLY ANALYZER
        Settings.setBoolean(Settings.KEYS.ANALYZER_ASSEMBLY_ENABLED, assemblyAnalyzerEnabled);
        if (pathToMono != null && !pathToMono.isEmpty()) {
            Settings.setString(Settings.KEYS.ANALYZER_ASSEMBLY_MONO_PATH, pathToMono);
        }

        //Database configuration
        if (databaseDriverName != null && !databaseDriverName.isEmpty()) {
            Settings.setString(Settings.KEYS.DB_DRIVER_NAME, databaseDriverName);
        }
        if (databaseDriverPath != null && !databaseDriverPath.isEmpty()) {
            Settings.setString(Settings.KEYS.DB_DRIVER_PATH, databaseDriverPath);
        }
        if (connectionString != null && !connectionString.isEmpty()) {
            Settings.setString(Settings.KEYS.DB_CONNECTION_STRING, connectionString);
        }
        if (databaseUser != null && !databaseUser.isEmpty()) {
            Settings.setString(Settings.KEYS.DB_USER, databaseUser);
        }
        if (databasePassword != null && !databasePassword.isEmpty()) {
            Settings.setString(Settings.KEYS.DB_PASSWORD, databasePassword);
        }
        // Data Directory
        if (dataDirectory != null && !dataDirectory.isEmpty()) {
            Settings.setString(Settings.KEYS.DATA_DIRECTORY, dataDirectory);
        }

        // Scope Exclusion
        Settings.setBoolean(Settings.KEYS.SKIP_TEST_SCOPE, skipTestScope);
        Settings.setBoolean(Settings.KEYS.SKIP_RUNTIME_SCOPE, skipRuntimeScope);
        Settings.setBoolean(Settings.KEYS.SKIP_PROVIDED_SCOPE, skipProvidedScope);

        // CVE Data Mirroring
        if (cveUrl12Modified != null && !cveUrl12Modified.isEmpty()) {
            Settings.setString(Settings.KEYS.CVE_MODIFIED_12_URL, cveUrl12Modified);
        }
        if (cveUrl20Modified != null && !cveUrl20Modified.isEmpty()) {
            Settings.setString(Settings.KEYS.CVE_MODIFIED_20_URL, cveUrl20Modified);
        }
        if (cveUrl12Base != null && !cveUrl12Base.isEmpty()) {
            Settings.setString(Settings.KEYS.CVE_SCHEMA_1_2, cveUrl12Base);
        }
        if (cveUrl20Base != null && !cveUrl20Base.isEmpty()) {
            Settings.setString(Settings.KEYS.CVE_SCHEMA_2_0, cveUrl20Base);
        }
    }

    /**
     * Returns the maven proxy.
     *
     * @return the maven proxy
     */
    private Proxy getMavenProxy() {
        if (mavenSettings != null) {
            final List proxies = mavenSettings.getProxies();
            if (proxies != null && !proxies.isEmpty()) {
                if (mavenSettingsProxyId != null) {
                    for (Proxy proxy : proxies) {
                        if (mavenSettingsProxyId.equalsIgnoreCase(proxy.getId())) {
                            return proxy;
                        }
                    }
                } else if (proxies.size() == 1) {
                    return proxies.get(0);
                } else {
                    LOGGER.warning("Multiple proxy definitions exist in the Maven settings. In the dependency-check "
                            + "configuration set the mavenSettingsProxyId so that the correct proxy will be used.");
                    throw new IllegalStateException("Ambiguous proxy definition");
                }
            }
        }
        return null;
    }

    /**
     * Tests is the artifact should be included in the scan (i.e. is the dependency in a scope that is being scanned).
     *
     * @param a the Artifact to test
     * @return true if the artifact is in an excluded scope; otherwise false
     */
    protected boolean excludeFromScan(Artifact a) {
        if (skipTestScope && Artifact.SCOPE_TEST.equals(a.getScope())) {
            return true;
        }
        if (skipProvidedScope && Artifact.SCOPE_PROVIDED.equals(a.getScope())) {
            return true;
        }
        if (skipRuntimeScope && !Artifact.SCOPE_RUNTIME.equals(a.getScope())) {
            return true;
        }
        return false;
    }

    /**
     * Returns a reference to the current project. This method is used instead of auto-binding the project via component
     * annotation in concrete implementations of this. If the child has a @Component MavenProject project; defined
     * then the abstract class (i.e. this class) will not have access to the current project (just the way Maven works with the
     * binding).
     *
     * @return returns a reference to the current project
     */
    protected MavenProject getProject() {
        return project;
    }

    /**
     * Returns the list of Maven Projects in this build.
     *
     * @return the list of Maven Projects in this build
     */
    protected List getReactorProjects() {
        return reactorProjects;
    }

    /**
     * Returns the report format.
     *
     * @return the report format
     */
    protected String getFormat() {
        return format;
    }

    /**
     * Generates the reports for a given dependency-check engine.
     *
     * @param engine a dependency-check engine
     * @param p the maven project
     * @param outputDir the directory path to write the report(s).
     */
    protected void writeReports(Engine engine, MavenProject p, File outputDir) {
        DatabaseProperties prop = null;
        CveDB cve = null;
        try {
            cve = new CveDB();
            cve.open();
            prop = cve.getDatabaseProperties();
        } catch (DatabaseException ex) {
            LOGGER.log(Level.FINE, "Unable to retrieve DB Properties", ex);
        } finally {
            if (cve != null) {
                cve.close();
            }
        }
        final ReportGenerator r = new ReportGenerator(p.getName(), engine.getDependencies(), engine.getAnalyzers(), prop);
        try {
            r.generateReports(outputDir.getAbsolutePath(), format);
        } catch (IOException ex) {
            LOGGER.log(Level.SEVERE,
                    "Unexpected exception occurred during analysis; please see the verbose error log for more details.");
            LOGGER.log(Level.FINE, null, ex);
        } catch (Throwable ex) {
            LOGGER.log(Level.SEVERE,
                    "Unexpected exception occurred during analysis; please see the verbose error log for more details.");
            LOGGER.log(Level.FINE, null, ex);
        }
    }

    //
    /**
     * Checks to see if a vulnerability has been identified with a CVSS score that is above the threshold set in the
     * configuration.
     *
     * @param dependencies the list of dependency objects
     * @throws MojoFailureException thrown if a CVSS score is found that is higher then the threshold set
     */
    protected void checkForFailure(List dependencies) throws MojoFailureException {
        if (failBuildOnCVSS <= 10) {
            final StringBuilder ids = new StringBuilder();
            for (Dependency d : dependencies) {
                boolean addName = true;
                for (Vulnerability v : d.getVulnerabilities()) {
                    if (v.getCvssScore() >= failBuildOnCVSS) {
                        if (addName) {
                            addName = false;
                            ids.append(NEW_LINE).append(d.getFileName()).append(": ");
                            ids.append(v.getName());
                        } else {
                            ids.append(", ").append(v.getName());
                        }
                    }
                }
            }
            if (ids.length() > 0) {
                final String msg = String.format("%n%nDependency-Check Failure:%n"
                        + "One or more dependencies were identified with vulnerabilities that have a CVSS score greater then '%.1f': %s%n"
                        + "See the dependency-check report for more details.%n%n", failBuildOnCVSS, ids.toString());
                throw new MojoFailureException(msg);
            }
        }
    }

    /**
     * Generates a warning message listing a summary of dependencies and their associated CPE and CVE entries.
     *
     * @param mp the Maven project for which the summary is shown
     * @param dependencies a list of dependency objects
     */
    protected void showSummary(MavenProject mp, List dependencies) {
        if (showSummary) {
            final StringBuilder summary = new StringBuilder();
            for (Dependency d : dependencies) {
                boolean firstEntry = true;
                final StringBuilder ids = new StringBuilder();
                for (Vulnerability v : d.getVulnerabilities()) {
                    if (firstEntry) {
                        firstEntry = false;
                    } else {
                        ids.append(", ");
                    }
                    ids.append(v.getName());
                }
                if (ids.length() > 0) {
                    summary.append(d.getFileName()).append(" (");
                    firstEntry = true;
                    for (Identifier id : d.getIdentifiers()) {
                        if (firstEntry) {
                            firstEntry = false;
                        } else {
                            summary.append(", ");
                        }
                        summary.append(id.getValue());
                    }
                    summary.append(") : ").append(ids).append(NEW_LINE);
                }
            }
            if (summary.length() > 0) {
                final String msg = String.format("%n%n" + "One or more dependencies were identified with known vulnerabilities in %s:%n%n%s"
                        + "%n%nSee the dependency-check report for more details.%n%n", mp.getName(), summary.toString());
                LOGGER.log(Level.WARNING, msg);
            }
        }
    }

    //
    //
    /**
     * Returns the key used to store the path to the data file that is saved by writeDataFile(). This key is used in
     * the MavenProject.(set|get)ContextValue.
     *
     * @return the key used to store the path to the data file
     */
    protected String getDataFileContextKey() {
        return "dependency-check-path-" + dataFileName;
    }

    /**
     * Returns the key used to store the path to the output directory. When generating the report in the
     * executeAggregateReport() the output directory should be obtained by using this key.
     *
     * @return the key used to store the path to the output directory
     */
    protected String getOutputDirectoryContextKey() {
        return "dependency-output-dir-" + dataFileName;
    }

    /**
     * Writes the scan data to disk. This is used to serialize the scan data between the "check" and "aggregate" phase.
     *
     * @param mp the mMven project for which the data file was created
     * @param writeTo the directory to write the data file
     * @param dependencies the list of dependencies to serialize
     */
    protected void writeDataFile(MavenProject mp, File writeTo, List dependencies) {
        File file;
        //check to see if this was already written out
        if (mp.getContextValue(this.getDataFileContextKey()) == null) {
            if (writeTo == null) {
                file = new File(mp.getBuild().getDirectory());
                file = new File(file, dataFileName);
            } else {
                file = new File(writeTo, dataFileName);
            }
            OutputStream os = null;
            OutputStream bos = null;
            ObjectOutputStream out = null;
            try {
                if (dependencies != null) {
                    os = new FileOutputStream(file);
                    bos = new BufferedOutputStream(os);
                    out = new ObjectOutputStream(bos);
                    out.writeObject(dependencies);
                    out.flush();

                    //call reset to prevent resource leaks per
                    //https://www.securecoding.cert.org/confluence/display/java/SER10-J.+Avoid+memory+and+resource+leaks+during+serialization
                    out.reset();
                }
                LOGGER.fine(String.format("Serialized data file written to '%s' for %s, referenced by key %s",
                        file.getAbsolutePath(), mp.getName(), this.getDataFileContextKey()));
                mp.setContextValue(this.getDataFileContextKey(), file.getAbsolutePath());
            } catch (IOException ex) {
                LOGGER.log(Level.WARNING, "Unable to create data file used for report aggregation; "
                        + "if report aggregation is being used the results may be incomplete.");
                LOGGER.log(Level.FINE, ex.getMessage(), ex);
            } finally {
                if (out != null) {
                    try {
                        out.close();
                    } catch (IOException ex) {
                        LOGGER.log(Level.FINEST, "ignore", ex);
                    }
                }
                if (bos != null) {
                    try {
                        bos.close();
                    } catch (IOException ex) {
                        LOGGER.log(Level.FINEST, "ignore", ex);
                    }
                }
                if (os != null) {
                    try {
                        os.close();
                    } catch (IOException ex) {
                        LOGGER.log(Level.FINEST, "ignore", ex);
                    }
                }
            }
        }
    }

    /**
     * Reads the serialized scan data from disk. This is used to serialize the scan data between the "check" and "aggregate"
     * phase.
     *
     * @param project the Maven project to read the data file from
     * @return a Engine object populated with dependencies if the serialized data file exists; otherwise
     * null is returned
     */
    protected List readDataFile(MavenProject project) {
        final Object oPath = project.getContextValue(this.getDataFileContextKey());
        if (oPath == null) {
            return null;
        }
        List ret = null;
        final String path = (String) oPath;
        ObjectInputStream ois = null;
        try {
            ois = new ObjectInputStream(new FileInputStream(path));
            ret = (List) ois.readObject();
        } catch (FileNotFoundException ex) {
            //TODO fix logging
            LOGGER.log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            LOGGER.log(Level.SEVERE, null, ex);
        } catch (ClassNotFoundException ex) {
            LOGGER.log(Level.SEVERE, null, ex);
        } finally {
            if (ois != null) {
                try {
                    ois.close();
                } catch (IOException ex) {
                    LOGGER.log(Level.SEVERE, null, ex);
                }
            }
        }
        return ret;
    }
    //
}




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