/*

  * 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) 2013 Jeremy Long. All Rights Reserved.

  */

 package org.owasp.dependencycheck.maven;

 import java.io.File;

 import java.io.IOException;

 import java.io.InputStream;

 import java.io.UnsupportedEncodingException;

 import java.net.URLEncoder;

 import java.text.DateFormat;

 import java.util.Date;

 import java.util.List;

 import java.util.Locale;

 import java.util.Set;

 import java.util.logging.Level;

 import java.util.logging.Logger;

 import org.apache.maven.artifact.Artifact;

 import org.apache.maven.doxia.sink.Sink;

 import org.apache.maven.doxia.sink.SinkFactory;

 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.LifecyclePhase;

 import org.apache.maven.plugins.annotations.Mojo;

 import org.apache.maven.plugins.annotations.Parameter;

 import org.apache.maven.plugins.annotations.ResolutionScope;

 import org.apache.maven.project.MavenProject;

 import org.apache.maven.reporting.MavenMultiPageReport;

 import org.apache.maven.reporting.MavenReport;

 import org.apache.maven.reporting.MavenReportException;

 import org.owasp.dependencycheck.Engine;

 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.Dependency;

 import org.owasp.dependencycheck.dependency.Evidence;

 import org.owasp.dependencycheck.dependency.Identifier;

 import org.owasp.dependencycheck.dependency.Reference;

 import org.owasp.dependencycheck.dependency.Vulnerability;

 import org.owasp.dependencycheck.dependency.VulnerableSoftware;

 import org.owasp.dependencycheck.reporting.ReportGenerator;

 import org.owasp.dependencycheck.utils.LogUtils;

 import org.owasp.dependencycheck.utils.Settings;

 /**

  * Maven Plugin that checks project dependencies to see if they have any known published vulnerabilities.

  *

  * @author Jeremy Long <jeremy.long@owasp.org>

  */

 @Mojo(name = "check", defaultPhase = LifecyclePhase.COMPILE, threadSafe = true,

         requiresDependencyResolution = ResolutionScope.RUNTIME_PLUS_SYSTEM,

         requiresOnline = true)

 public class DependencyCheckMojo extends AbstractMojo implements MavenMultiPageReport {

     /**

      * 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";

     /**

      * The name of the test scope.

      */

     public static final String TEST_SCOPE = "test";

     /**

      * System specific new line character.

      */

     private static final String NEW_LINE = System.getProperty("line.separator", "\n").intern();

     // <editor-fold defaultstate="collapsed" desc="Maven bound parameters and components">

     /**

      * The Maven Project Object.

      */

     @Component

     private MavenProject project;

     /**

      * The name of the site report destination.

      */

     @Parameter(property = "report-name", defaultValue = "dependency-check-report")

     private String reportName;

     /**

      * The path to the verbose log

      */

     @Parameter(property = "logfile", defaultValue = "")

     private String logFile;

     /**

      * The name of the report to be displayed in the Maven Generated Reports page

      */

     @Parameter(property = "name", defaultValue = "Dependency-Check")

     private String name;

     /**

      * The description of the Dependency-Check report to be displayed in the Maven Generated Reports page

      */

     @Parameter(property = "description", defaultValue = "A report providing details on any published "

             + "vulnerabilities within project dependencies. This report is a best effort but may contain "

             + "false positives and false negatives.")

     private String description;

     /**

      * Specifies the destination directory for the generated Dependency-Check report.

      */

     @Parameter(property = "reportOutputDirectory", defaultValue = "${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.

      */

     @Parameter(property = "failBuildOnCVSS", defaultValue = "11", required = true)

     private float failBuildOnCVSS = 11;

     /**

      * The output directory.

      */

     @Parameter(defaultValue = "${project.build.directory}", required = true)

     private File outputDirectory;

     /**

      * 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", "FieldCanBeLocal"})

     @Parameter(property = "autoupdate", defaultValue = "true", required = true)

     private boolean autoUpdate = true;

     /**

      * The report format to be generated (HTML, XML, VULN, ALL). This configuration option has no affect if using this

      * within the Site plugin unless the externalReport is set to true. Default is HTML.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "format", defaultValue = "HTML", required = true)

     private String format = "HTML";

     /**

      * Sets whether or not the external report format should be used.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "externalReport", defaultValue = "false", required = true)

     private boolean externalReport = false;

     /**

      * The Proxy URL.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "proxyUrl", defaultValue = "", required = false)

     private String proxyUrl = null;

     /**

      * The Proxy Port.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "proxyPort", defaultValue = "", required = false)

     private String proxyPort = null;

     /**

      * The Proxy username.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "proxyUsername", defaultValue = "", required = false)

     private String proxyUsername = null;

     /**

      * The Proxy password.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "proxyPassword", defaultValue = "", required = false)

     private String proxyPassword = null;

     /**

      * The Connection Timeout.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "connectionTimeout", defaultValue = "", required = false)

     private String connectionTimeout = null;

     /**

      * The Connection Timeout.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "suppressionFile", defaultValue = "", required = false)

     private String suppressionFile = null;

     /**

      * Flag indicating whether or not to show a summary in the output.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "showSummary", defaultValue = "true", required = false)

     private boolean showSummary = true;

     /**

      * Whether or not the Nexus Analyzer is enabled.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "nexusAnalyzerEnabled", defaultValue = "true", required = false)

     private boolean nexusAnalyzerEnabled = true;

     /**

      * Whether or not the Nexus Analyzer is enabled.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "nexusUrl", defaultValue = "", required = false)

     private String nexusUrl;

     /**

      * The database connection string.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "connectionString", defaultValue = "", required = false)

     private String connectionString;

     /**

      * The database driver name. An example would be org.h2.Driver.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "databaseDriverName", defaultValue = "", required = false)

     private String databaseDriverName;

     /**

      * The path to the database driver if it is not on the class path.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "databaseDriverPath", defaultValue = "", required = false)

     private String databaseDriverPath;

     /**

      * The database user name.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "databaseUser", defaultValue = "", required = false)

     private String databaseUser;

     /**

      * The password to use when connecting to the database.

      */

     @SuppressWarnings({"CanBeFinal", "FieldCanBeLocal"})

     @Parameter(property = "databasePassword", defaultValue = "", required = false)

     private String databasePassword;

     // </editor-fold>

     /**

      * Executes the Dependency-Check on the dependent libraries.

      *

      * @return the Engine used to scan the dependencies.

      */

     private Engine executeDependencyCheck() {

         final InputStream in = DependencyCheckMojo.class.getClassLoader().getResourceAsStream(LOG_PROPERTIES_FILE);

         LogUtils.prepareLogger(in, logFile);

         populateSettings();

         final Engine engine = new Engine();

         final Set<Artifact> artifacts = project.getArtifacts();

         for (Artifact a : artifacts) {

             if (!TEST_SCOPE.equals(a.getScope())) {

                 engine.scan(a.getFile().getAbsolutePath());

             }

         }

         engine.analyzeDependencies();

         return engine;

     }

     /**

      * Generates the reports for a given dependency-check engine.

      *

      * @param engine a dependency-check engine

      */

     private void generateExternalReports(Engine engine) {

         DatabaseProperties prop = null;

         CveDB cve = null;

         try {

             cve = new CveDB();

             cve.open();

             prop = cve.getDatabaseProperties();

         } catch (DatabaseException ex) {

             Logger.getLogger(DependencyCheckMojo.class.getName()).log(Level.FINE, "Unable to retrieve DB Properties", ex);

         } finally {

             if (cve != null) {

                 cve.close();

             }

         }

         final ReportGenerator r = new ReportGenerator(project.getName(), engine.getDependencies(), engine.getAnalyzers(), prop);

         try {

             r.generateReports(outputDirectory.getCanonicalPath(), format);

         } catch (IOException ex) {

             Logger.getLogger(DependencyCheckMojo.class.getName()).log(Level.SEVERE,

                     "Unexpected exception occurred during analysis; please see the verbose error log for more details.");

             Logger.getLogger(DependencyCheckMojo.class.getName()).log(Level.FINE, null, ex);

         } catch (Exception ex) {

             Logger.getLogger(DependencyCheckMojo.class.getName()).log(Level.SEVERE,

                     "Unexpected exception occurred during analysis; please see the verbose error log for more details.");

             Logger.getLogger(DependencyCheckMojo.class.getName()).log(Level.FINE, null, ex);

         }

     }

     /**

      * Generates a dependency-check report using the Maven Site format.

      *

      * @param engine the engine used to scan the dependencies

      * @param sink the sink to write the data to

      */

     private void generateMavenSiteReport(final Engine engine, Sink sink) {

         final List<Dependency> dependencies = engine.getDependencies();

         writeSiteReportHeader(sink, project.getName());

         writeSiteReportTOC(sink, dependencies);

         int cnt = 0;

         for (Dependency d : dependencies) {

             writeSiteReportDependencyHeader(sink, d);

             cnt = writeSiteReportDependencyAnalysisExceptions(d, cnt, sink);

             cnt = writeSiteReportDependencyEvidenceUsed(d, cnt, sink);

             cnt = writeSiteReportDependencyRelatedDependencies(d, cnt, sink);

             writeSiteReportDependencyIdentifiers(d, sink);

             writeSiteReportDependencyVulnerabilities(d, sink, cnt);

         }

         sink.body_();

     }

     // <editor-fold defaultstate="collapsed" desc="various writeXXXXX methods to generate the Site Report">

     /**

      * Writes the vulnerabilities to the site report.

      *

      * @param d the dependency

      * @param sink the sink to write the data to

      * @param collapsibleHeaderCount the collapsible header count

      */

     private void writeSiteReportDependencyVulnerabilities(Dependency d, Sink sink, int collapsibleHeaderCount) {

         int cnt = collapsibleHeaderCount;

         if (d.getVulnerabilities() != null && !d.getVulnerabilities().isEmpty()) {

             for (Vulnerability v : d.getVulnerabilities()) {

                 sink.paragraph();

                 sink.bold();

                 try {

                     sink.link("http://web.nvd.nist.gov/view/vuln/detail?vulnId=" + URLEncoder.encode(v.getName(), "US-ASCII"));

                     sink.text(v.getName());

                     sink.link_();

                     sink.bold_();

                 } catch (UnsupportedEncodingException ex) {

                     sink.text(v.getName());

                     sink.bold_();

                     sink.lineBreak();

                     sink.text("http://web.nvd.nist.gov/view/vuln/detail?vulnId=" + v.getName());

                 }

                 sink.paragraph_();

                 sink.paragraph();

                 sink.text("Severity: ");

                 if (v.getCvssScore() < 4.0) {

                     sink.text("Low");

                 } else {

                     if (v.getCvssScore() >= 7.0) {

                         sink.text("High");

                     } else {

                         sink.text("Medium");

                     }

                 }

                 sink.lineBreak();

                 sink.text("CVSS Score: " + v.getCvssScore());

                 if (v.getCwe() != null && !v.getCwe().isEmpty()) {

                     sink.lineBreak();

                     sink.text("CWE: ");

                     sink.text(v.getCwe());

                 }

                 sink.paragraph_();

                 sink.paragraph();

                 sink.text(v.getDescription());

                 if (v.getReferences() != null && !v.getReferences().isEmpty()) {

                     sink.list();

                     for (Reference ref : v.getReferences()) {

                         sink.listItem();

                         sink.text(ref.getSource());

                         sink.text(" - ");

                         sink.link(ref.getUrl());

                         sink.text(ref.getName());

                         sink.link_();

                         sink.listItem_();

                     }

                     sink.list_();

                 }

                 sink.paragraph_();

                 if (v.getVulnerableSoftware() != null && !v.getVulnerableSoftware().isEmpty()) {

                     sink.paragraph();

                     cnt += 1;

                     sink.rawText("Vulnerable Software <a href=\"javascript:toggleElement(this, 'vulnSoft" + cnt + "')\">[-]</a>");

                     sink.rawText("<div id=\"vulnSoft" + cnt + "\" style=\"display:block\">");

                     sink.list();

                     for (VulnerableSoftware vs : v.getVulnerableSoftware()) {

                         sink.listItem();

                         try {

                             sink.link("http://web.nvd.nist.gov/view/vuln/search-results?cpe=" + URLEncoder.encode(vs.getName(), "US-ASCII"));

                             sink.text(vs.getName());

                             sink.link_();

                             if (vs.hasPreviousVersion()) {

                                 sink.text(" and all previous versions.");

                             }

                         } catch (UnsupportedEncodingException ex) {

                             sink.text(vs.getName());

                             if (vs.hasPreviousVersion()) {

                                 sink.text(" and all previous versions.");

                             }

                             sink.text(" (http://web.nvd.nist.gov/view/vuln/search-results?cpe=" + vs.getName() + ")");

                         }

                         sink.listItem_();

                     }

                     sink.list_();

                     sink.rawText("</div>");

                     sink.paragraph_();

                 }

             }

         }

     }

     /**

      * Writes the identifiers to the site report.

      *

      * @param d the dependency

      * @param sink the sink to write the data to

      */

     private void writeSiteReportDependencyIdentifiers(Dependency d, Sink sink) {

         if (d.getIdentifiers() != null && !d.getIdentifiers().isEmpty()) {

             sink.sectionTitle4();

             sink.text("Identifiers");

             sink.sectionTitle4_();

             sink.list();

             for (Identifier i : d.getIdentifiers()) {

                 sink.listItem();

                 sink.text(i.getType());

                 sink.text(": ");

                 if (i.getUrl() != null && i.getUrl().length() > 0) {

                     sink.link(i.getUrl());

                     sink.text(i.getValue());

                     sink.link_();

                 } else {

                     sink.text(i.getValue());

                 }

                 if (i.getDescription() != null && i.getDescription().length() > 0) {

                     sink.lineBreak();

                     sink.text(i.getDescription());

                 }

                 sink.listItem_();

             }

             sink.list_();

         }

     }

     /**

      * Writes the related dependencies to the site report.

      *

      * @param d the dependency

      * @param sink the sink to write the data to

      * @param collapsibleHeaderCount the collapsible header count

      * @return the collapsible header count

      */

     private int writeSiteReportDependencyRelatedDependencies(Dependency d, int collapsibleHeaderCount, Sink sink) {

         int cnt = collapsibleHeaderCount;

         if (d.getRelatedDependencies() != null && !d.getRelatedDependencies().isEmpty()) {

             cnt += 1;

             sink.sectionTitle4();

             sink.rawText("Related Dependencies <a href=\"javascript:toggleElement(this, 'related" + cnt + "')\">[+]</a>");

             sink.sectionTitle4_();

             sink.rawText("<div id=\"related" + cnt + "\" style=\"display:none\">");

             sink.list();

             for (Dependency r : d.getRelatedDependencies()) {

                 sink.listItem();

                 sink.text(r.getFileName());

                 sink.list();

                 writeListItem(sink, "File Path: " + r.getFilePath());

                 writeListItem(sink, "SHA1: " + r.getSha1sum());

                 writeListItem(sink, "MD5: " + r.getMd5sum());

                 sink.list_();

                 sink.listItem_();

             }

             sink.list_();

             sink.rawText("</div>");

         }

         return cnt;

     }

     /**

      * Writes the evidence used to the site report.

      *

      * @param d the dependency

      * @param sink the sink to write the data to

      * @param collapsibleHeaderCount the collapsible header count

      * @return the collapsible header count

      */

     private int writeSiteReportDependencyEvidenceUsed(Dependency d, int collapsibleHeaderCount, Sink sink) {

         int cnt = collapsibleHeaderCount;

         if (d.getEvidenceUsed() != null && d.getEvidenceUsed().size() > 0) {

             cnt += 1;

             sink.sectionTitle4();

             sink.rawText("Evidence Collected <a href=\"javascript:toggleElement(this, 'evidence" + cnt + "')\">[+]</a>");

             sink.sectionTitle4_();

             sink.rawText("<div id=\"evidence" + cnt + "\" style=\"display:none\">");

             sink.table();

             sink.tableRow();

             writeTableHeaderCell(sink, "Source");

             writeTableHeaderCell(sink, "Name");

             writeTableHeaderCell(sink, "Value");

             sink.tableRow_();

             for (Evidence e : d.getEvidenceUsed()) {

                 sink.tableRow();

                 writeTableCell(sink, e.getSource());

                 writeTableCell(sink, e.getName());

                 writeTableCell(sink, e.getValue());

                 sink.tableRow_();

             }

             sink.table_();

             sink.rawText("</div>");

         }

         return cnt;

     }

     /**

      * Writes the analysis exceptions generated during analysis to the site report.

      *

      * @param d the dependency

      * @param sink the sink to write the data to

      * @param collapsibleHeaderCount the collapsible header count

      * @return the collapsible header count

      */

     private int writeSiteReportDependencyAnalysisExceptions(Dependency d, int collapsibleHeaderCount, Sink sink) {

         int cnt = collapsibleHeaderCount;

         if (d.getAnalysisExceptions() != null && !d.getAnalysisExceptions().isEmpty()) {

             cnt += 1;

             sink.sectionTitle4();

             sink.rawText("<font style=\"color:red\">Errors occurred during analysis:</font> <a href=\"javascript:toggleElement(this, 'errors"

                     + cnt + "')\">[+]</a>");

             sink.sectionTitle4_();

             sink.rawText("<div id=\"errors" + cnt + "\">");

             sink.list();

             for (Exception e : d.getAnalysisExceptions()) {

                 sink.listItem();

                 sink.text(e.getMessage());

                 sink.listItem_();

             }

             sink.list_();

             sink.rawText("</div>");

         }

         return cnt;

     }

     /**

      * Writes the dependency header to the site report.

      *

      * @param d the dependency

      * @param sink the sink to write the data to

      */

     private void writeSiteReportDependencyHeader(Sink sink, Dependency d) {

         sink.sectionTitle2();

         sink.anchor("sha1" + d.getSha1sum());

         sink.text(d.getFileName());

         sink.anchor_();

         sink.sectionTitle2_();

         if (d.getDescription() != null && d.getDescription().length() > 0) {

             sink.paragraph();

             sink.bold();

             sink.text("Description: ");

             sink.bold_();

             sink.text(d.getDescription());

             sink.paragraph_();

         }

         if (d.getLicense() != null && d.getLicense().length() > 0) {

             sink.paragraph();

             sink.bold();

             sink.text("License: ");

             sink.bold_();

             if (d.getLicense().startsWith("http://") && !d.getLicense().contains(" ")) {

                 sink.link(d.getLicense());

                 sink.text(d.getLicense());

                 sink.link_();

             } else {

                 sink.text(d.getLicense());

             }

             sink.paragraph_();

         }

     }

     /**

      * Adds a list item to the site report.

      *

      * @param sink the sink to write the data to

      * @param text the text to write

      */

     private void writeListItem(Sink sink, String text) {

         sink.listItem();

         sink.text(text);

         sink.listItem_();

     }

     /**

      * Adds a table cell to the site report.

      *

      * @param sink the sink to write the data to

      * @param text the text to write

      */

     private void writeTableCell(Sink sink, String text) {

         sink.tableCell();

         sink.text(text);

         sink.tableCell_();

     }

     /**

      * Adds a table header cell to the site report.

      *

      * @param sink the sink to write the data to

      * @param text the text to write

      */

     private void writeTableHeaderCell(Sink sink, String text) {

         sink.tableHeaderCell();

         sink.text(text);

         sink.tableHeaderCell_();

     }

     /**

      * Writes the TOC for the site report.

      *

      * @param sink the sink to write the data to

      * @param dependencies the dependencies that are being reported on

      */

     private void writeSiteReportTOC(Sink sink, final List<Dependency> dependencies) {

         sink.list();

         for (Dependency d : dependencies) {

             sink.listItem();

             sink.link("#sha1" + d.getSha1sum());

             sink.text(d.getFileName());

             sink.link_();

             if (!d.getVulnerabilities().isEmpty()) {

                 sink.rawText(" <font style=\"color:red\">•</font>");

             }

             if (!d.getRelatedDependencies().isEmpty()) {

                 sink.list();

                 for (Dependency r : d.getRelatedDependencies()) {

                     writeListItem(sink, r.getFileName());

                 }

                 sink.list_();

             }

             sink.listItem_();

         }

         sink.list_();

     }

     /**

      * Writes the site report header.

      *

      * @param sink the sink to write the data to

      * @param projectName the name of the project

      */

     private void writeSiteReportHeader(Sink sink, String projectName) {

         sink.head();

         sink.title();

         sink.text("Dependency-Check Report: " + projectName);

         sink.title_();

         sink.head_();

         sink.body();

         sink.rawText("<script type=\"text/javascript\">");

         sink.rawText("function toggleElement(el, targetId) {");

         sink.rawText("if (el.innerText == '[+]') {");

         sink.rawText("    el.innerText = '[-]';");

         sink.rawText("    document.getElementById(targetId).style.display='block';");

         sink.rawText("} else {");

         sink.rawText("    el.innerText = '[+]';");

         sink.rawText("    document.getElementById(targetId).style.display='none';");

         sink.rawText("}");

         sink.rawText("}");

         sink.rawText("</script>");

         sink.section1();

         sink.sectionTitle1();

         sink.text("Project: " + projectName);

         sink.sectionTitle1_();

         sink.date();

         final Date now = new Date();

         sink.text(DateFormat.getDateTimeInstance().format(now));

         sink.date_();

         sink.section1_();

     }

     // </editor-fold>

     /**

      * 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() {

         InputStream mojoProperties = null;

         try {

             mojoProperties = this.getClass().getClassLoader().getResourceAsStream(PROPERTIES_FILE);

             Settings.mergeProperties(mojoProperties);

         } catch (IOException ex) {

             Logger.getLogger(DependencyCheckMojo.class.getName()).log(Level.WARNING, "Unable to load the dependency-check ant task.properties file.");

             Logger.getLogger(DependencyCheckMojo.class.getName()).log(Level.FINE, null, ex);

         } finally {

             if (mojoProperties != null) {

                 try {

                     mojoProperties.close();

                 } catch (IOException ex) {

                     Logger.getLogger(DependencyCheckMojo.class.getName()).log(Level.FINEST, null, ex);

                 }

             }

         }

         Settings.setBoolean(Settings.KEYS.AUTO_UPDATE, autoUpdate);

         if (proxyUrl != null && !proxyUrl.isEmpty()) {

             Settings.setString(Settings.KEYS.PROXY_URL, proxyUrl);

         }

         if (proxyPort != null && !proxyPort.isEmpty()) {

             Settings.setString(Settings.KEYS.PROXY_PORT, proxyPort);

         }

         if (proxyUsername != null && !proxyUsername.isEmpty()) {

             Settings.setString(Settings.KEYS.PROXY_USERNAME, proxyUsername);

         }

         if (proxyPassword != null && !proxyPassword.isEmpty()) {

             Settings.setString(Settings.KEYS.PROXY_PASSWORD, proxyPassword);

         }

         if (connectionTimeout != null && !connectionTimeout.isEmpty()) {

             Settings.setString(Settings.KEYS.CONNECTION_TIMEOUT, connectionTimeout);

         }

         if (suppressionFile != null && !suppressionFile.isEmpty()) {

             Settings.setString(Settings.KEYS.SUPPRESSION_FILE, suppressionFile);

         }

         Settings.setBoolean(Settings.KEYS.ANALYZER_NEXUS_ENABLED, nexusAnalyzerEnabled);

         if (nexusUrl != null && !nexusUrl.isEmpty()) {

             Settings.setString(Settings.KEYS.ANALYZER_NEXUS_URL, nexusUrl);

         }

         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);

         }

     }

     /**

      * Executes the dependency-check and generates the report.

      *

      * @throws MojoExecutionException if a maven exception occurs

      * @throws MojoFailureException thrown if a CVSS score is found that is higher then the configured level

      */

     public void execute() throws MojoExecutionException, MojoFailureException {

         final Engine engine = executeDependencyCheck();

         generateExternalReports(engine);

         if (this.failBuildOnCVSS <= 10) {

             checkForFailure(engine.getDependencies());

         }

         if (this.showSummary) {

             showSummary(engine.getDependencies());

         }

     }

     /**

      * 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(@SuppressWarnings("deprecation") org.codehaus.doxia.sink.Sink sink,

             Locale locale) throws MavenReportException {

         generate((Sink) sink, null, locale);

     }

     /**

      * Generates the Dependency-Check Site Report.

      *

      * @param sink the sink to write the report to

      * @param sinkFactory the sink factory

      * @param locale the locale to use when generating the report

      * @throws MavenReportException if a maven report exception occurs

      */

     public void generate(Sink sink, SinkFactory sinkFactory, Locale locale) throws MavenReportException {

         final Engine engine = executeDependencyCheck();

         generateMavenSiteReport(engine, sink);

     }

     // <editor-fold defaultstate="collapsed" desc="required setter/getter methods">

     /**

      * Returns the output name.

      *

      * @return the output name

      */

     public String getOutputName() {

         return reportName;

     }

     /**

      * Returns the category name.

      *

      * @return the category name

      */

     public String getCategoryName() {

         return MavenReport.CATEGORY_PROJECT_REPORTS;

     }

     /**

      * Returns the report name.

      *

      * @param locale the location

      * @return the report name

      */

     public String getName(Locale locale) {

         return name;

     }

     /**

      * Sets the Reporting output directory.

      *

      * @param directory the output directory

      */

     public void setReportOutputDirectory(File directory) {

         reportOutputDirectory = directory;

     }

     /**

      * Returns the output directory.

      *

      * @return the output directory

      */

     public File getReportOutputDirectory() {

         return reportOutputDirectory;

     }

     /**

      * Gets the description of the Dependency-Check report to be displayed in the Maven Generated Reports page.

      *

      * @param locale The Locale to get the description for

      * @return the description

      */

     public String getDescription(Locale locale) {

         return description;

     }

     /**

      * Returns whether this is an external report.

      *

      * @return true or false;

      */

     public boolean isExternalReport() {

         return externalReport;

     }

     /**

      * Returns whether or not the plugin can generate a report.

      *

      * @return true

      */

     public boolean canGenerateReport() {

         return true;

     }

     // </editor-fold>

     /**

      * 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

      */

     private void checkForFailure(List<Dependency> dependencies) throws MojoFailureException {

         final StringBuilder ids = new StringBuilder();

         for (Dependency d : dependencies) {

             for (Vulnerability v : d.getVulnerabilities()) {

                 if (v.getCvssScore() >= failBuildOnCVSS) {

                     if (ids.length() == 0) {

                         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 dependencies a list of dependency objects

      */

     private void showSummary(List<Dependency> dependencies) {

         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:%n%n%s"

                     + "%n%nSee the dependency-check report for more details.%n%n", summary.toString());

             Logger.getLogger(DependencyCheckMojo.class.getName()).log(Level.WARNING, msg);

         }

     }

 }