Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
core/src/main/cfml/context/admin/Application.cfc
### 代码内容：
<!---
 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 *
 ---><cfcomponent><cfscript>

this.name="webadmin#server.lucee.version#";
this.clientmanagement="no";
this.clientstorage="file";
this.scriptprotect="all";
this.sessionmanagement="yes";
this.sessionStorage="memory";
this.sessiontimeout="#createTimeSpan(0,0,30,0)#";
this.setclientcookies="yes";
this.setdomaincookies="no";
this.applicationtimeout="#createTimeSpan(1,0,0,0)#";
this.localmode="update";
this.web.charset="utf-8";
this.sessionCookie.httpOnly = true; // prevent access to session cookies from javascript
this.sessionCookie.sameSite = "strict";
this.tag.cookie.sameSite = "strict";

public function onApplicationStart(){
	if(structKeyExists(server.system.environment,"LUCEE_ADMIN_ENABLED") && server.system.environment.LUCEE_ADMIN_ENABLED EQ false){
		cfheader(statuscode="404" statustext="Invalid access");
        abort;
	}
}

</cfscript></cfcomponent>

## 内容2
### 文件路径：
loader/build.xml
### 代码内容：
<?xml version="1.0" encoding="UTF-8"?>
<project default="core" basedir="." name="Lucee" xmlns:artifact="antlib:org.apache.maven.artifact.ant">

  <property name="version" value="5.3.8.88-SNAPSHOT"/>

  <path id="maven-ant-tasks.classpath" path="../ant/lib/maven-ant-tasks-2.1.3.jar" />
  <typedef resource="org/apache/maven/artifact/ant/antlib.xml"
           uri="antlib:org.apache.maven.artifact.ant"
           classpathref="maven-ant-tasks.classpath" />

  <import file="../ant/build-core.xml"/>

  <target name="withTestcases">
    <property name="testcases" value="true"/>
  </target>

  <target name="setEnv">
      <artifact:pom id="pom" file="pom.xml" />

      <!-- dependecies -->
      <artifact:dependencies filesetId="mydeps" pomRefId="pom" />
      <pathconvert property="dependencies" refid="mydeps"/>

      <property name="runtime_classpath" value="${java.class.path}:${dependencies}"/>
      <property name="outputDir" location="target/classes"/>
      <property name="target" location="target"/>
      <property name="baseDir" location=".."/>
      <property name="rootDir" location=".."/>

      <delete dir="${target}"/>
      <mkdir dir="${outputDir}"/>
  </target>

  <target name="core" depends="withTestcases,setEnv,buildLoaderAnt" description="build only Lucee itself">

      <delete dir="${outputDir}"/>
  </target>

  <target name="fast" depends="setEnv,buildLoaderAnt" description="build only Lucee itself">

      <delete dir="${outputDir}"/>
  </target>

</project>
## 内容3
### 文件路径：
loader/pom.xml
### 代码内容：
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>org.lucee</groupId>
  <artifactId>lucee</artifactId>
  <version>5.3.8.88-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>Lucee Loader Build</name>
  <description>Building the Lucee Loader JAR</description>
  <url>http://maven.lucee.org/loader/</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <timestamp>${maven.build.timestamp}</timestamp>
    <maven.build.timestamp.format>yyyy/MM/dd HH:mm:ss z</maven.build.timestamp.format>
    <maven.build.timestamp.zone>UTC</maven.build.timestamp.zone>
    <maven.build.timestamp.locale>en,GB</maven.build.timestamp.locale>
    <main.class>lucee.runtime.script.Main</main.class>
  </properties>

  <licenses>
    <license>
     <name>The GNU Lesser General Public License, Version 2.1</name>
     <url>http://www.gnu.org/licenses/lgpl-2.1.txt</url>
     <distribution>repo</distribution>
    </license>
  </licenses>

  <developers>
    <developer>
      <id>micstriit</id>
      <name>Michael Offner</name>
      <email>michael@lucee.org</email>
      <organization>Lucee Association Switzerland</organization>
      <organizationUrl>http://lucee.org</organizationUrl>
      <roles>
        <role>Project-Administrator</role>
        <role>Developer</role>
      </roles>
      <timezone>+1</timezone>
    </developer>
    <developer>
      <id>isapir</id>
      <name>Igal Sapir</name>
      <email>dev@21solutions.net</email>
      <organization>21 Solutions</organization>
      <organizationUrl>http://21solutions.net/</organizationUrl>
      <roles>
          <role>Developer</role>
      </roles>
      <timezone>-8</timezone>
    </developer>
  </developers>

  <profiles>
    <profile>
        <id>release-sign-artifacts</id>
        <activation>
            <property>
                <name>performRelease</name>
                <value>true</value>
            </property>
        </activation>
        <build>
            <plugins>
              <!-- GPG sign -->
              <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-gpg-plugin</artifactId>
           <version>1.5</version>
                <executions>
                  <execution>
                    <id>sign-artifacts</id>
                    <phase>verify</phase>
                    <goals>
                      <goal>sign</goal>
                    </goals>
                  </execution>
                </executions>
              </plugin>
            </plugins>
        </build>
    </profile>
</profiles>

  <build>
      <plugins>
        <!-- publish to central maven -->
        <plugin>
     <groupId>org.sonatype.plugins</groupId>
     <artifactId>nexus-staging-maven-plugin</artifactId>
     <version>1.6.6</version>
          <extensions>true</extensions>
          <configuration>
            <serverId>ossrh</serverId>
            <nexusUrl>https://oss.sonatype.org/</nexusUrl>
            <autoReleaseAfterClose>true</autoReleaseAfterClose>
          </configuration>
        </plugin>

        <!-- GPG sign
        <plugin>
     <groupId>org.apache.maven.plugins</groupId>
     <artifactId>maven-gpg-plugin</artifactId>
     <version>1.5</version>
          <executions>
            <execution>
              <id>sign-artifacts</id>
              <phase>verify</phase>
              <goals>
                <goal>sign</goal>
              </goals>
            </execution>
          </executions>
        </plugin> -->

        <!-- -->
        <plugin>
     <groupId>org.apache.maven.plugins</groupId>
     <artifactId>maven-release-plugin</artifactId>
     <version>2.5</version>
          <configuration>
            <autoVersionSubmodules>true</autoVersionSubmodules>
            <useReleaseProfile>false</useReleaseProfile>
            <releaseProfiles>release</releaseProfiles>
            <goals>deploy</goals>
          </configuration>
        </plugin>

        <plugin>
     		<groupId>org.apache.maven.plugins</groupId>
     		<artifactId>maven-source-plugin</artifactId>
     		<version>2.4</version>
          <executions>
            <execution>
              <id>attach-sources</id>
              <goals>
                <goal>jar</goal>
              </goals>
            </execution>
          </executions>
        </plugin>

        <plugin>
     		<groupId>org.apache.maven.plugins</groupId>
     		<artifactId>maven-javadoc-plugin</artifactId>
         	<version>2.10.3</version>

          <executions>
            <execution>
              <id>attach-javadocs</id>
              <goals>
                <goal>jar</goal>
              </goals>
            <!-- add this to disable checking
            <configuration>
                <additionalparam>-Xdoclint:none</additionalparam>
            </configuration> -->
            </execution>
          </executions>
        </plugin>

      <!-- plugin to build Lucee Core Files (.lco) -->
         <plugin>
       <artifactId>maven-antrun-plugin</artifactId>
       <version>1.8</version>
            <executions>
              <execution>
                <id>ant-magic</id>
                <phase>compile</phase>
                <goals>
                  <goal>run</goal>
                </goals>
                <configuration>
                  <tasks>
                    <!-- get dependencies -->
                    <dependencyfilesets prefix="mydeps." />
                    <path id="maven-ant-tasks.classpath">
                      <fileset refid="mydeps.org.apache.maven:maven-ant-tasks:jar" />
                    </path>
                    <pathconvert property="dependencies" refid="mydeps.maven.project.dependencies" />

                    <property name="version" value="${project.version}" />

                    <!-- <property name="compile_classpath" refid="maven.compile.classpath" /> -->
                    <property name="runtime_classpath" refid="maven.runtime.classpath" />

                    <property name="outputDir" value="${project.build.outputDirectory}" />
                    <property name="testcases" value="true" />

                    <!-- <property name="sourceDir" value="${project.build.sourceDirectory}" /> -->
                    <property name="baseDir" value="${basedir}" />
                    <dirname file="${baseDir}" property="rootDir" />

                    <ant antfile="../ant/build-core.xml" target="buildLoaderMaven" />

                  </tasks>
                </configuration>
              </execution>
            </executions>
          </plugin>

         <!-- creates the .lco file, this plugin extends the jar plugin from maven-->
        <plugin>
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-jar-plugin</artifactId>
       <version>2.6</version>
            <extensions>true</extensions>

            <configuration>
                <excludes>
                  <exclude>.*</exclude>
              </excludes>
              <archive>
                    <manifestFile>src/main/java/META-INF/MANIFEST.MF</manifestFile>
                <manifest>
                  <mainClass>${main.class}</mainClass>
                </manifest>
                  </archive>
              </configuration>

          </plugin>

         <plugin>
       <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-compiler-plugin</artifactId>
      <version>3.3</version>
           <configuration>
             <source>1.8</source>
             <target>1.8</target>

           </configuration>

      </plugin>

      </plugins>
      <pluginManagement>
      	<plugins>
      		<!-- This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build itself. -->
      		<plugin>
      			<groupId>org.eclipse.m2e</groupId>
      			<artifactId>lifecycle-mapping</artifactId>
      			<version>1.0.0</version>
      			<configuration>
      				<lifecycleMappingMetadata>
      					<pluginExecutions>
      						<pluginExecution>
      							<pluginExecutionFilter>
      								<groupId>
      									org.apache.maven.plugins
      								</groupId>
      								<artifactId>
      									maven-antrun-plugin
      								</artifactId>
      								<versionRange>
      									[1.8,)
      								</versionRange>
      								<goals>
      									<goal>run</goal>
      								</goals>
      							</pluginExecutionFilter>
      							<action>
      								<ignore></ignore>
      							</action>
      						</pluginExecution>
      					</pluginExecutions>
      				</lifecycleMappingMetadata>
      			</configuration>
      		</plugin>
      	</plugins>
      </pluginManagement>
  </build>

	<dependencies>

  <dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.12</version>
    <scope>test</scope>
  </dependency>

	<dependency>
    <groupId>org.apache.felix</groupId>
    <artifactId>org.apache.felix.framework</artifactId>
    <version>6.0.2</version><!-- 4.6.1 -->
    <scope>compile</scope>
  </dependency>
  <dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
    <scope>compile</scope>
  </dependency>
  <dependency>
    <groupId>javax.servlet.jsp</groupId>
    <artifactId>jsp-api</artifactId>
    <version>2.2</version>
    <scope>compile</scope>
  </dependency>
  <dependency>
    <groupId>javax.el</groupId>
    <artifactId>javax.el-api</artifactId>
    <version>3.0.0</version>
    <scope>compile</scope>
  </dependency>
  <dependency>
    <groupId>org.apache.ant</groupId>
    <artifactId>ant</artifactId>
    <version>1.9.5</version>
    <scope>compile</scope>
  </dependency>

<!--
  source: mvn
-->
	<dependency>
  		<groupId>org.lucee</groupId>
  		<artifactId>jzlib</artifactId>
  		<version>1.1.3</version>
    	<scope>provided</scope>
  	</dependency>
  	<dependency>
  		<groupId>org.lucee</groupId>
  		<artifactId>jsch</artifactId>
  		<version>0.1.53</version>
    	<scope>provided</scope>
  	</dependency>
  <dependency>
    <groupId>org.apache.tika</groupId>
    <artifactId>tika-core</artifactId>
    <version>1.22</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>commons-codec</groupId>
    <artifactId>commons-codec</artifactId>
    <version>1.9</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
	  <groupId>org.apache.commons</groupId>
	  <artifactId>commons-collections4</artifactId>
	  <version>4.0</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>commons-compress</artifactId>
  	<version>1.9.0</version>
    <scope>provided</scope>
  </dependency>
	<!--Axis?
    <dependency>
		<groupId>commons-discovery</groupId>
		<artifactId>commons-discovery</artifactId>
		<version>0.5</version>
    <scope>provided</scope>
  </dependency>
  -->
  <dependency>
    <groupId>org.lucee</groupId>
    <artifactId>commons-email</artifactId>
    <version>1.2.0</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>commons-fileupload</artifactId>
  	<version>1.3.2.L0001</version>
    <scope>provided</scope>
  </dependency>
	<!--Axis?
  <dependency>
		<groupId>org.lucee</groupId>
		<artifactId>commons-httpclient</artifactId>
		<version>3.1.0</version>
    <scope>provided</scope>
  </dependency>
-->
	<dependency>
		<groupId>org.lucee</groupId>
		<artifactId>commons-io</artifactId>
		<version>2.4.0</version>
    <scope>provided</scope>
  </dependency>
	<dependency>
		<groupId>org.lucee</groupId>
		<artifactId>commons-lang</artifactId>
		<version>2.6.0</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>commons-logging-adapters</artifactId>
  	<version>1.1.0</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>commons-logging-api</artifactId>
  	<version>1.1.0</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>commons-logging</artifactId>
  	<version>1.1.1.L0001</version>
    <scope>provided</scope>
  </dependency>
	<dependency>
		<groupId>commons-net</groupId>
		<artifactId>commons-net</artifactId>
		<version>3.3</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>org.apache</groupId>
    <artifactId>oro</artifactId>
    <version>2.0.8</version>
    <scope>provided</scope>
  </dependency>
	<dependency>
		<groupId>log4j</groupId>
		<artifactId>log4j</artifactId>
		<version>1.2.17</version>
    <scope>provided</scope>
  </dependency>
  <!--
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>xalan</artifactId>
  	<version>2.7.2</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>xalan-serializer</artifactId>
  	<version>2.7.2</version>
    <scope>provided</scope>
  </dependency>
  -->
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>portlet</artifactId>
  	<version>1.0.0</version>
    <scope>provided</scope>
  </dependency>
  <!--
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>xml-xerces</artifactId>
  	<version>2.11.0</version>
    <scope>provided</scope>
  </dependency>
  -->
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>xml-apis</artifactId>
  	<version>1.4.1</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>backport.util</groupId>
    <artifactId>concurrent</artifactId>
    <version>2.2.0</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>org.lucee</groupId>
    <artifactId>oswego-concurrent</artifactId>
    <version>1.3.4</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>jta</artifactId>
  	<version>1.1.0</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>fusiondebug.api</groupId>
    <artifactId>server</artifactId>
    <version>1.0.20</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>httpcomponents-httpclient</artifactId>
  	<version>4.5.10</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>httpcomponents-httpcore</artifactId>
  	<version>4.4.12</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>httpcomponents-httpmime</artifactId>
  	<version>4.5.10</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>hsqldb</groupId>
    <artifactId>hsqldb</artifactId>
    <version>1.8.0</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>jacob</groupId>
    <artifactId>jacob</artifactId>
    <version>1.16.1</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>javasysmon</groupId>
    <artifactId>javasysmon</artifactId>
    <version>0.3.3</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>org.samba</groupId>
    <artifactId>jcifs</artifactId>
    <version>1.3.17</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>jencrypt</groupId>
    <artifactId>jencrypt</artifactId>
    <version>1.4.2.04</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
  	<groupId>org.ow2.asm</groupId>
  	<artifactId>asm-all</artifactId>
  	<version>4.2</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
  	<groupId>org.lucee</groupId>
  	<artifactId>xml-resolver</artifactId>
  	<version>1.2.0</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
  	<groupId>org.slf4j</groupId>
  	<artifactId>slf4j-api</artifactId>
  	<version>1.7.12</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
	  <groupId>org.slf4j</groupId>
	  <artifactId>slf4j-nop</artifactId>
	  <version>1.7.12</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>ss</groupId>
    <artifactId>css2</artifactId>
    <version>0.9.4</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>stax</groupId>
    <artifactId>api</artifactId>
    <version>1.0.1.0002L</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>sun.jndi</groupId>
    <artifactId>ldap</artifactId>
    <version>1.2.4</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>sun.jndi</groupId>
    <artifactId>ldapbp</artifactId>
    <version>1.2.4</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>sun.jndi</groupId>
    <artifactId>ldapsec</artifactId>
    <version>1.2.4</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>sun.jndi</groupId>
    <artifactId>providerutil</artifactId>
    <version>1.2.4</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
	  <groupId>javax.mail</groupId>
	  <artifactId>activation</artifactId>
	  <version>1.6.2.0000L</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>sun.security</groupId>
    <artifactId>jaas</artifactId>
    <version>1.2.4</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>tagsoup</groupId>
    <artifactId>tagsoup</artifactId>
    <version>1.2.1.0002L</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>w3c</groupId>
    <artifactId>dom</artifactId>
    <version>1.1.0</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
        <groupId>javax.websocket</groupId>
        <artifactId>javax.websocket-api</artifactId>
        <version>1.1</version>
        <scope>provided</scope>
    </dependency>
  <!-- <dependency>
    <groupId>xdb</groupId>
    <artifactId>xdb</artifactId>
    <version>1.0.0</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>xmlparserv2</groupId>
    <artifactId>xmlparserv2</artifactId>
    <version>1.2.2</version>
    <scope>provided</scope>
  </dependency> -->
  <dependency>
    <groupId>xmpcore</groupId>
    <artifactId>xmpcore</artifactId>
    <version>5.1.2.0002L</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
      <groupId>org.lucee</groupId>
      <artifactId>argon2</artifactId>
      <version>2.7.0</version>
	</dependency>
</dependencies>

   <repositories>
      <repository>
         <id>repo</id>
         <url>https://raw.githubusercontent.com/lucee/mvn/master/releases</url>
      </repository>
      <repository>
        <id>snapi</id>
        <url>https://oss.sonatype.org/content/repositories/snapshots</url>
      </repository>
      <repository>
        <id>res</id>
        <url>https://oss.sonatype.org/content/repositories/releases/</url>
      </repository>
   </repositories>

  <scm>
    <url>https://github.com/lucee/Lucee</url>
             <connection>scm:git:git://github.com/lucee/Lucee.git</connection>
    <developerConnection>scm:git:git@github.com:lucee/Lucee.git</developerConnection>
    <tag>${project.version}</tag>
  </scm>

  <distributionManagement>
    <repository>
    <id>ossrh</id>
    <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
  </repository>
    <snapshotRepository>
      <id>ossrh</id>
      <url>https://oss.sonatype.org/content/repositories/snapshots</url>
    </snapshotRepository>
  </distributionManagement>

</project>

Output:
【漏洞类型】未授权访问漏洞
【严重性】High
【漏洞摘要】原始代码中存在未授权访问漏洞，因为onApplicationStart函数仅检查了server.system.environment.LUCEE_ADMIN_ENABLED变量来决定是否允许访问。如果该变量未被设置或被设置为false，所有未登录的用户都可以访问admin上下文，这可能会导致敏感信息泄露或系统管理功能被未授权用户利用。修复代码通过添加onRequestStart函数，在每次请求开始时检查会话中是否存在passwordWeb和passwordServer变量，如果不存在且请求文件不是admin.cfm、web.cfm或server.cfm，则返回404状态码，阻止未授权访问。
【关键代码模式】未验证的用户输入、onRequestStart、structKeyExists、session管理。
【修复方法说明】通过在onRequestStart中验证请求文件并检查会话中的密码变量，修复了未授权访问漏洞。


Output:
【漏洞类型】安全敏感文件权限漏洞
【严重性】High
【漏洞摘要】原始代码在创建临时文件时使用了`File.createTempFile(String, String)`方法，该方法默认的文件权限可能允许其他本地用户读取敏感数据。这在存储敏感信息时是一个安全风险。具体问题出现在`AbstractDiskHttpData.java`、`NativeLibraryLoader.java`和`SelfSignedCertificate.java`文件中，这些文件在不同上下文下创建临时文件时均未指定文件权限。
【关键代码模式】
- `File.createTempFile(String, String)`
- `File.createTempFile(String, String, File)`
- `newSelfSignedCertificate(String, PrivateKey, X509Certificate)`
【修复方法说明】修复方法通过使用`PlatformDependent.createTempFile(String, String, File)`方法来创建临时文件，并确保在Java 7及以上版本中使用安全默认权限，以防止其他本地用户读取敏感数据。在Java 6中，由于无法设置默认权限，修复方法假设Java 6不安全，但仍创建临时文件。


Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
build.sbt
### 代码内容：
import com.typesafe.tools.mima.core._
import Dependencies._

ThisBuild / publishGithubUser := "rossabaker"
ThisBuild / publishFullName := "Ross A. Baker"
ThisBuild / baseVersion := "0.14"

ThisBuild / versionIntroduced := Map(
  "2.13" -> "0.14.5",
  "3.0.0-M2" -> "0.14.15",
  "3.0.0-M3" -> "0.14.15"
)

lazy val commonSettings = Seq(
  description := "NIO Framework for Scala",
  crossScalaVersions := Seq("2.11.12", "2.12.12", "2.13.3"),
  scalaVersion := crossScalaVersions.value.filter(_.startsWith("2.")).last,
  scalacOptions in Test ~= (_.filterNot(Set("-Ywarn-dead-code", "-Wdead-code", "-Xfatal-warnings"))), // because mockito
  scalacOptions in (Compile, doc) += "-no-link-warnings",
  unmanagedSourceDirectories in Compile ++= {
    (unmanagedSourceDirectories in Compile).value.map { dir =>
      val sv = scalaVersion.value
      CrossVersion.binaryScalaVersion(sv) match {
        case "2.11" | "2.12" => file(dir.getPath ++ "-2.11-2.12")
        case _ => file(dir.getPath ++ "-2.13")
      }
    }
  },
  fork in run := true,
  developers ++= List(
    Developer("bryce-anderson"       , "Bryce L. Anderson"     , "bryce.anderson22@gamil.com"       , url("https://github.com/bryce-anderson")),
    Developer("rossabaker"           , "Ross A. Baker"         , "ross@rossabaker.com"              , url("https://github.com/rossabaker")),
    Developer("ChristopherDavenport" , "Christopher Davenport" , "chris@christopherdavenport.tech"  , url("https://github.com/ChristopherDavenport"))
  ),

  licenses := Seq("Apache-2.0" -> url("https://www.apache.org/licenses/LICENSE-2.0.html")),

  homepage := Some(url("https://github.com/http4s/blaze")),

  scmInfo := Some(
    ScmInfo(
      url("https://github.com/http4s/blaze"),
      "scm:git:https://github.com/http4s/blaze.git",
      Some("scm:git:git@github.com:http4s/blaze.git")
    )
  ),
  startYear := Some(2014),
)

ThisBuild / githubWorkflowJavaVersions := Seq("adopt@1.8")

ThisBuild / githubWorkflowPublishTargetBranches := Seq(
  RefPredicate.Equals(Ref.Branch("main"))
)
ThisBuild / githubWorkflowBuild := Seq(
  WorkflowStep.Sbt(List("validate"))
)

lazy val blaze = project.in(file("."))
  .enablePlugins(Http4sOrgPlugin)
  .enablePlugins(NoPublishPlugin)
  .settings(commonSettings)
  .aggregate(core, http, examples)

lazy val core = Project("blaze-core", file("core"))
  .enablePlugins(Http4sOrgPlugin)
  .enablePlugins(BuildInfoPlugin)
  .settings(commonSettings)
  .settings(
    libraryDependencies ++= Seq(log4s),
    libraryDependencies ++= Seq(
      specs2,
      specs2Mock,
      logbackClassic
    ).map(_ % Test),
    buildInfoPackage := "org.http4s.blaze",
    buildInfoKeys := Seq[BuildInfoKey](
      version,
      scalaVersion,
      git.gitHeadCommit
    ),
    buildInfoOptions += BuildInfoOption.BuildTime,
    mimaBinaryIssueFilters ++= Seq(
      // private constructor for which there are no sensible defaults
      ProblemFilters.exclude[DirectMissingMethodProblem]("org.http4s.blaze.channel.nio1.NIO1SocketServerGroup.this")
    )
  )

lazy val http = Project("blaze-http", file("http"))
  .enablePlugins(Http4sOrgPlugin)
  .settings(commonSettings)
  .settings(
    // General Dependencies
    libraryDependencies ++= Seq(
      twitterHPACK,
      alpn_api
    ),
    // Test Dependencies
    libraryDependencies ++= Seq(
      asyncHttpClient,
      scalacheck,
      specs2Scalacheck
    ).map(_ % Test),
    mimaBinaryIssueFilters ++= Seq(
      ProblemFilters.exclude[MissingClassProblem]("org.http4s.blaze.http.http2.PingManager$PingState"),
      ProblemFilters.exclude[MissingClassProblem]("org.http4s.blaze.http.http2.PingManager$PingState$")
    )
  ).dependsOn(core % "test->test;compile->compile")

lazy val examples = Project("blaze-examples",file("examples"))
  .enablePlugins(AlpnBootPlugin)
  .enablePlugins(NoPublishPlugin)
  .settings(commonSettings)
  .settings(Revolver.settings)
  .settings(
    alpnBootModule := alpn_boot,
  ).dependsOn(http)

/* Helper Functions */

addCommandAlias("validate", ";scalafmtCheckAll ;javafmtCheckAll ;test ;unusedCompileDependenciesTest ;mimaReportBinaryIssues")

## 内容2
### 文件路径：
core/src/main/scala-2.11-2.12/org/http4s/blaze/internal/compat.scala
### 代码内容：
package org.http4s.blaze.internal

private[blaze] object compat {
  val CollectionConverters = scala.collection.JavaConverters
}

## 内容3
### 文件路径：
core/src/main/scala/org/http4s/blaze/channel/nio1/NIO1ClientChannel.scala
### 代码内容：
package org.http4s.blaze.channel.nio1

import org.http4s.blaze.channel.{ChannelOptions, OptionValue}

import java.net.SocketAddress
import java.nio.ByteBuffer
import java.nio.channels.{SelectableChannel, SocketChannel}
import java.util.concurrent.atomic.AtomicBoolean

private[blaze] final class NIO1ClientChannel(
    private[this] val underlying: SocketChannel,
    private[this] val onClose: () => Unit)
    extends NIO1Channel {

  private[this] val closed = new AtomicBoolean(false)

  override val selectableChannel: SelectableChannel = underlying

  def configureBlocking(block: Boolean): Unit = {
    underlying.configureBlocking(block)
    ()
  }

  def getRemoteAddress: SocketAddress =
    underlying.getRemoteAddress

  def getLocalAddress: SocketAddress =
    underlying.getLocalAddress

  def configureOptions(options: ChannelOptions): Unit =
    options.options.foreach { case OptionValue(k, v) =>
      underlying.setOption(k, v)
    }

  def read(dst: ByteBuffer): Int =
    underlying.read(dst)

  def write(src: ByteBuffer): Int =
    underlying.write(src)

  def write(srcs: Array[ByteBuffer]): Long =
    underlying.write(srcs)

  def isOpen: Boolean =
    underlying.isOpen

  override def close(): Unit =
    try underlying.close()
    finally if (closed.compareAndSet(false, true)) {
      onClose()
    }

}

## 内容4
### 文件路径：
core/src/main/scala/org/http4s/blaze/channel/nio1/NIO1HeadStage.scala
### 代码内容：
package org.http4s.blaze.channel.nio1

import java.io.IOException
import java.nio.ByteBuffer
import java.nio.channels._
import java.util.concurrent.RejectedExecutionException
import org.http4s.blaze.channel.ChannelHead
import org.http4s.blaze.pipeline.Command.{Disconnected, EOF}
import org.http4s.blaze.util
import org.http4s.blaze.util.BufferTools

import scala.annotation.tailrec
import scala.concurrent.{Future, Promise}
import scala.util.{Failure, Success, Try}

private[nio1] object NIO1HeadStage {
  private val CachedSuccess = Success(())

  private sealed trait WriteResult
  private case object Complete extends WriteResult
  private case object Incomplete extends WriteResult
  private case class WriteError(t: Exception) extends WriteResult // EOF signals normal termination

  /** Performs the read operation
    *
    * @param scratch a ByteBuffer in which to load read data. The method
    *                doesn't take and ownership interest in the buffer, eg it's
    *                reference is not retained.
    * @return a `Try` representing successfully loading data into `scratch`, or
    *         the failure cause.
    */
  private def performRead(ch: NIO1ClientChannel, scratch: ByteBuffer, size: Int): Try[Unit] =
    try {
      scratch.clear()
      if (size >= 0 && size < scratch.remaining)
        scratch.limit(size)
      val bytes = ch.read(scratch)
      if (bytes < 0) Failure(EOF)
      else {
        scratch.flip()
        CachedSuccess
      }
    } catch {
      case _: ClosedChannelException => Failure(EOF)
      case e: IOException if ChannelHead.brokePipeMessages.contains(e.getMessage) =>
        Failure(EOF)
      case e: IOException => Failure(e)
    }

  /** Perform the write operation for this channel
    * @param buffers buffers to be written to the channel
    * @return a WriteResult that is one of Complete, Incomplete or WriteError(e: Exception)
    */
  private def performWrite(
      ch: NIO1ClientChannel,
      scratch: ByteBuffer,
      buffers: Array[ByteBuffer]): WriteResult =
    try if (BufferTools.areDirectOrEmpty(buffers)) {
      ch.write(buffers)
      if (util.BufferTools.checkEmpty(buffers)) Complete
      else Incomplete
    } else {
      // To sidestep the java NIO "memory leak" (see http://www.evanjones.ca/java-bytebuffer-leak.html)
      // We copy the data to the scratch buffer (which should be a direct ByteBuffer)
      // before the write. We then check to see how much data was written and fast-forward
      // the input buffers accordingly.
      // This is very similar to the pattern used by the Oracle JDK implementation in its
      // IOUtil class: if the provided buffers are not direct buffers, they are copied to
      // temporary direct ByteBuffers and written.
      @tailrec
      def writeLoop(): WriteResult = {
        scratch.clear()
        BufferTools.copyBuffers(buffers, scratch)
        scratch.flip()

        val written = ch.write(scratch)
        if (written > 0)
          assert(BufferTools.fastForwardBuffers(buffers, written))

        if (scratch.remaining > 0)
          // Couldn't write all the data.
          Incomplete
        else if (util.BufferTools.checkEmpty(buffers))
          // All data was written
          Complete
        else
          // May still be able to write more to the socket buffer.
          writeLoop()
      }

      writeLoop()
    } catch {
      case _: ClosedChannelException => WriteError(EOF)
      case e: IOException if ChannelHead.brokePipeMessages.contains(e.getMessage) =>
        WriteError(EOF)
      case e: IOException =>
        WriteError(e)
    }
}

private[nio1] final class NIO1HeadStage(
    ch: NIO1ClientChannel,
    selectorLoop: SelectorLoop,
    key: SelectionKey
) extends ChannelHead
    with Selectable {
  import NIO1HeadStage._

  @deprecated(
    "Binary compatibility shim. This one can leak connection acceptance permits.",
    "0.14.15")
  private[NIO1HeadStage] def this(
      ch: SocketChannel,
      selectorLoop: SelectorLoop,
      key: SelectionKey
  ) = this(
    new NIO1ClientChannel(ch, () => ()),
    selectorLoop: SelectorLoop,
    key
  )

  override def name: String = "NIO1 ByteBuffer Head Stage"

  // State of the HeadStage. These should only be accessed from the SelectorLoop thread
  // will only be written to inside of 'closeWithError'
  private[this] var closedReason: Throwable = null

  private[this] var readPromise: Promise[ByteBuffer] = null
  private[this] var readSize: Int = -1

  private[this] var writeData: Array[ByteBuffer] = null
  private[this] var writePromise: Promise[Unit] = null

  final def opsReady(scratch: ByteBuffer): Unit = {
    val readyOps = key.readyOps
    if ((readyOps & SelectionKey.OP_READ) != 0) readReady(scratch)
    if ((readyOps & SelectionKey.OP_WRITE) != 0) writeReady(scratch)
  }

  // Called by the selector loop when this channel has data to read
  private[this] def readReady(scratch: ByteBuffer): Unit = {
    unsetOp(SelectionKey.OP_READ)

    if (readPromise != null)
      // if we successfully read some data, unset the interest and
      // complete the promise, otherwise fail appropriately
      performRead(ch, scratch, readSize) match {
        case Success(_) =>
          val buffer = BufferTools.copyBuffer(scratch)
          val p = readPromise
          readPromise = null
          p.success(buffer)
          ()

        case Failure(e) =>
          val p = readPromise
          readPromise = null
          p.failure(checkError(e))
          ()
      }
  }

  private[this] def writeReady(scratch: ByteBuffer): Unit = {
    val buffers = writeData // get a local reference so we don't hit the volatile a lot
    performWrite(ch, scratch, buffers) match {
      case Complete =>
        writeData = null
        unsetOp(SelectionKey.OP_WRITE)
        val p = writePromise
        writePromise = null
        if (p != null) {
          p.tryComplete(CachedSuccess)
          ()
        }

      case Incomplete =>
        // Need to wait for another go around to try and send more data
        BufferTools.dropEmpty(buffers)
        ()

      case WriteError(t) =>
        unsetOp(SelectionKey.OP_WRITE)
        val p = writePromise
        writePromise = null
        if (p != null) {
          p.failure(t)
          ()
        }
    }
  }

  ///  channel reading bits //////////////////////////////////////////////

  final override def readRequest(size: Int): Future[ByteBuffer] = {
    logger.trace(s"NIOHeadStage received a read request of size $size")
    val p = Promise[ByteBuffer]()

    selectorLoop.executeTask(new selectorLoop.LoopRunnable {
      override def run(scratchBuffer: ByteBuffer): Unit =
        if (closedReason != null) {
          p.failure(closedReason)
          ()
        } else if (readPromise == null)
          // First we try to just read data, and fall back to NIO notification
          // if we don't get any data back.
          performRead(ch, scratchBuffer, size) match {
            case Success(_) if scratchBuffer.remaining > 0 =>
              // We read some data. Need to copy it and send it on it's way.
              val data = BufferTools.copyBuffer(scratchBuffer)
              p.success(data)
              ()

            case Success(_) =>
              // No data available, so setup for NIO notification.
              readSize = size
              readPromise = p
              setOp(SelectionKey.OP_READ)
              ()

            case Failure(e) =>
              p.failure(checkError(e))
              ()
          }
        else {
          p.failure(new IllegalStateException("Cannot have more than one pending read request"))
          ()
        }
    })
    p.future
  }

  /// channel write bits /////////////////////////////////////////////////

  final override def writeRequest(data: ByteBuffer): Future[Unit] =
    writeRequest(data :: Nil)

  final override def writeRequest(data: collection.Seq[ByteBuffer]): Future[Unit] = {
    logger.trace(s"NIO1HeadStage Write Request: $data")
    val p = Promise[Unit]()
    selectorLoop.executeTask(new selectorLoop.LoopRunnable {
      override def run(scratch: ByteBuffer): Unit =
        if (closedReason != null) {
          p.failure(closedReason)
          ()
        } else if (writePromise == null) {
          val writes = data.toArray
          if (!BufferTools.checkEmpty(writes))
            // Non-empty buffers. First we check to see if we can immediately
            // write all the data to save a trip through the NIO event system.
            performWrite(ch, scratch, writes) match {
              case Complete =>
                p.tryComplete(CachedSuccess)
                ()

              case Incomplete =>
                // Need to be notified by NIO when we can write again.
                BufferTools.dropEmpty(writes)
                writePromise = p
                writeData = writes
                setOp(SelectionKey.OP_WRITE)
                p.future
                ()

              case WriteError(t) =>
                p.failure(t)
                ()
            }
          else {
            // Empty buffers, just return success.
            p.complete(CachedSuccess)
            ()
          }
        } else {
          val t = new IllegalStateException("Cannot have more than one pending write request")
          p.failure(t)
          ()
        }
    })

    p.future
  }

  ///////////////////////////////// Channel Ops ////////////////////////////////////////

  final override def close(cause: Option[Throwable]): Unit = doClosePipeline(cause)

  final override protected def doClosePipeline(cause: Option[Throwable]): Unit = {
    // intended to be called from within the SelectorLoop but if
    // it's closed it will be performed in the current thread
    def doClose(t: Throwable): Unit = {
      // this is the only place that writes to the variable
      if (closedReason == null)
        closedReason = t
      else if (closedReason != EOF && closedReason != t)
        closedReason.addSuppressed(t)

      if (readPromise != null) {
        readPromise.tryFailure(t)
        readPromise = null
      }

      if (writePromise != null) {
        writePromise.tryFailure(t)
        writePromise = null
      }

      writeData = null
      try ch.close()
      catch {
        case ex: IOException =>
          logger.warn(ex)("Unexpected IOException during channel close")
      }
      sendInboundCommand(Disconnected)
    }

    try selectorLoop.executeTask(new Runnable {
      def run(): Unit = {
        logger.trace(
          s"closeWithError($cause); readPromise: $readPromise, writePromise: $writePromise")
        val c = cause match {
          case Some(ex) =>
            logger.error(cause.get)("Abnormal NIO1HeadStage termination")
            ex
          case None => EOF
        }
        if (key.isValid) key.interestOps(0)
        key.attach(null)
        doClose(c)
      }
    })
    catch {
      case e: RejectedExecutionException =>
        logger.error(e)("Event loop closed. Closing in current thread.")
        doClose(cause.getOrElse(EOF))
    }
  }

  /** Unsets a channel interest
    *  only to be called by the SelectorLoop thread
    */
  private[this] def unsetOp(op: Int): Unit =
    // assert(Thread.currentThread() == loop,
    //       s"Expected to be called only by SelectorLoop thread, was called by ${Thread.currentThread.getName}")
    try {
      val ops = key.interestOps()
      if ((ops & op) != 0) {
        key.interestOps(ops & ~op)
        ()
      }
    } catch {
      case _: CancelledKeyException =>
        close(None)
    }

  // only to be called by the SelectorLoop thread
  private[this] def setOp(op: Int): Unit =
    // assert(Thread.currentThread() == loop,
    //       s"Expected to be called only by SelectorLoop thread, was called by ${Thread.currentThread.getName}")
    try {
      val ops = key.interestOps()
      if ((ops & op) == 0) {
        key.interestOps(ops | op)
        ()
      }
    } catch {
      case _: CancelledKeyException =>
        close(None)
    }
}

## 内容5
### 文件路径：
core/src/main/scala/org/http4s/blaze/channel/nio1/NIO1SocketConnection.scala
### 代码内容：
package org.http4s.blaze.channel.nio1

import java.nio.channels.{SelectableChannel, SocketChannel}
import org.http4s.blaze.channel.SocketConnection
import java.net.SocketAddress

object NIO1Connection {
  def apply(connection: SelectableChannel): SocketConnection =
    connection match {
      case ch: SocketChannel => NIO1SocketConnection(ch)
      case _ =>
        // We don't know what type this is, so implement what we can
        new SocketConnection {
          override def remote: SocketAddress = local

          override def local: SocketAddress = new SocketAddress {}

          override def close(): Unit = connection.close()

          override def isOpen: Boolean = connection.isOpen
        }
    }

  private[blaze] def apply(channel: NIO1ClientChannel): SocketConnection =
    new SocketConnection {
      override def remote: SocketAddress = channel.getRemoteAddress
      override def local: SocketAddress = channel.getLocalAddress
      override def isOpen: Boolean = channel.isOpen
      override def close(): Unit = channel.close()
    }
}

private case class NIO1SocketConnection(connection: SocketChannel) extends SocketConnection {
  override def remote: SocketAddress = connection.getRemoteAddress

  override def local: SocketAddress = connection.getLocalAddress

  override def isOpen: Boolean = connection.isConnected

  override def close(): Unit = connection.close()
}

## 内容6
### 文件路径：
core/src/main/scala/org/http4s/blaze/channel/nio1/NIO1SocketServerGroup.scala
### 代码内容：
package org.http4s.blaze.channel.nio1

import java.io.IOException
import java.nio.channels._
import java.net.InetSocketAddress
import java.nio.ByteBuffer
import java.util.concurrent.{RejectedExecutionException, ThreadFactory}
import java.util.concurrent.atomic.{AtomicBoolean, AtomicInteger}
import org.http4s.blaze.channel.{
  ChannelOptions,
  DefaultMaxConnections,
  DefaultPoolSize,
  ServerChannel,
  ServerChannelGroup,
  SocketPipelineBuilder
}
import org.http4s.blaze.pipeline.Command
import org.http4s.blaze.util.{BasicThreadFactory, Connections}
import org.log4s._

import scala.annotation.tailrec
import scala.collection.mutable
import scala.util.{Failure, Success, Try}
import scala.util.control.NonFatal

object NIO1SocketServerGroup {

  /** Default size of buffer to use in a [[SelectorLoop]] */
  private[this] val DefaultBufferSize: Int = 64 * 1024

  private[this] val acceptorNumber = new AtomicInteger(0)
  private[this] val workerNumber = new AtomicInteger(0)

  private[this] def defaultAcceptorThreadFactory: ThreadFactory = {
    val id = acceptorNumber.getAndIncrement()
    BasicThreadFactory(prefix = s"blaze-acceptor-$id", daemonThreads = false)
  }

  private[this] def defaultWorkerThreadFactory: ThreadFactory = {
    val id = workerNumber.getAndIncrement()
    BasicThreadFactory(prefix = s"blaze-worker-$id", daemonThreads = false)
  }

  /** Create a new [[NIO1SocketServerGroup]] from the [[SelectorLoopPool]].
    *
    * @note The worker pool is not owned by the group and therefore not
    *       shutdown when the group is shutdown.
    */
  def create(
      acceptorPool: SelectorLoopPool,
      workerPool: SelectorLoopPool,
      channelOptions: ChannelOptions = ChannelOptions.DefaultOptions,
      maxConnections: Int = DefaultMaxConnections
  ): ServerChannelGroup =
    new NIO1SocketServerGroup(acceptorPool, workerPool, channelOptions, maxConnections)

  @deprecated(
    "Use `create` instead. This uses the same pool for both worker and acceptor",
    "0.14.15")
  def apply(
      workerPool: SelectorLoopPool,
      channelOptions: ChannelOptions = ChannelOptions.DefaultOptions
  ): ServerChannelGroup =
    create(workerPool, workerPool, channelOptions, DefaultMaxConnections)

  /** Create a new [[NIO1SocketServerGroup]] with a fresh [[FixedSelectorPool]
    * ]
    *
    * The resulting [[ServerChannelGroup]] takes ownership of the created pool,
    * shutting it down when the group is shutdown.
    */
  def fixed(
      workerThreads: Int = DefaultPoolSize,
      bufferSize: Int = DefaultBufferSize,
      channelOptions: ChannelOptions = ChannelOptions.DefaultOptions,
      selectorThreadFactory: ThreadFactory = defaultWorkerThreadFactory,
      acceptorThreads: Int = 1,
      acceptorThreadFactory: ThreadFactory = defaultAcceptorThreadFactory,
      maxConnections: Int = DefaultMaxConnections
  ): ServerChannelGroup = {
    val acceptorPool = new FixedSelectorPool(acceptorThreads, 1, acceptorThreadFactory)
    val workerPool = new FixedSelectorPool(workerThreads, bufferSize, selectorThreadFactory)
    val underlying = create(acceptorPool, workerPool, channelOptions, maxConnections)

    // Proxy to the underlying group. `close` calls also close
    // the worker pools since we were the ones that created it.
    new ServerChannelGroup {
      override def closeGroup(): Unit = {
        // Closing the underlying group will schedule their
        // shutdown tasks so even though they will be executed
        // asynchronously, they will be handled before the loops
        // shutdown since they cleanup pending tasks before dying
        // themselves.
        underlying.closeGroup()
        workerPool.close()
        acceptorPool.close()
      }

      override def bind(
          address: InetSocketAddress,
          service: SocketPipelineBuilder
      ): Try[ServerChannel] =
        underlying.bind(address, service)
    }
  }

  @deprecated("Use `fixed` instead", "0.14.15")
  def fixedGroup(
      workerThreads: Int = DefaultPoolSize,
      bufferSize: Int = DefaultBufferSize,
      channelOptions: ChannelOptions = ChannelOptions.DefaultOptions,
      selectorThreadFactory: ThreadFactory = defaultWorkerThreadFactory
  ): ServerChannelGroup =
    fixed(
      workerThreads,
      bufferSize,
      channelOptions,
      selectorThreadFactory,
      1,
      defaultAcceptorThreadFactory,
      DefaultMaxConnections)
}

/** A thread resource group for NIO1 network operations
  *
  * @param workerPool [[SelectorLoopPool]] that will belong to this group. The group
  *                    assumes responsibility for shutting it down. Shutting down the
  *                    pool after giving it to this group will result in undefined behavior.
  */
private final class NIO1SocketServerGroup private (
    acceptorPool: SelectorLoopPool,
    workerPool: SelectorLoopPool,
    channelOptions: ChannelOptions,
    maxConnections: Int)
    extends ServerChannelGroup {
  private[this] val logger = getLogger
  // Also acts as our intrinsic lock.
  private[this] val listeningSet = new mutable.HashSet[ServerChannelImpl]()
  // protected by synchronization on the intrinsic lock.
  private[this] var isClosed = false

  private[this] val connections: Connections = Connections(maxConnections)

  // Closing delegates to the `ServerChannelImpl` which
  // ensures only-once behavior and attempts to close the
  // channel within the `SelectorLoop`, if it's still running.
  // That should help alleviate many of the exceptions associated
  // with performing operations on closed channels, etc.
  private[this] class SocketAcceptor(
      key: SelectionKey,
      ch: ServerChannelImpl,
      service: SocketPipelineBuilder)
      extends Selectable {
    // Save it since once the channel is closed, we're in trouble.
    private[this] val closed = new AtomicBoolean(false)

    override def opsReady(unused: ByteBuffer): Unit =
      if (key.isAcceptable) {
        try acceptNewConnections()
        catch {
          case ex: IOException =>
            close(Some(ex))
        }
      }

    override def close(cause: Option[Throwable]): Unit =
      if (closed.compareAndSet(false, true) && !ch.channelClosed) {
        cause match {
          case Some(c) =>
            logger.error(c)(s"Listening socket(${ch.socketAddress}) closed forcibly.")

          case None =>
            logger.info(s"Listening socket(${ch.socketAddress}) closed.")
        }
        doClose()
      }

    // To close, we close the `ServerChannelImpl` which will
    // close the `ServerSocketChannel`.
    private[this] def doClose(): Unit = ch.close()

    @tailrec
    private[this] def acceptNewConnections(): Unit = {
      // We go in a loop just in case we have more than one.
      // Once we're out, the `.accept()` method will return `null`.
      connections.acquire()
      val child = ch.selectableChannel.accept()
      if (child != null) {
        val channel = new NIO1ClientChannel(child, () => connections.release())
        handleClientChannel(channel, service)
        acceptNewConnections()
      } else {
        connections.release()
      }
    }
  }

  // The core type tracked in this group. It is exclusively responsible
  // for closing the underlying `ServerSocketChannel`. IF possible, closing
  // the underlying channel is done in its assigned selector loop to
  // minimize race conditions.
  private[this] final class ServerChannelImpl(
      val selectableChannel: ServerSocketChannel,
      selectorLoop: SelectorLoop)
      extends ServerChannel
      with NIO1Channel {
    @volatile
    private[this] var closed = false

    def channelClosed: Boolean = closed

    val socketAddress: InetSocketAddress =
      selectableChannel.getLocalAddress.asInstanceOf[InetSocketAddress]

    override protected def closeChannel(): Unit = {
      // We try to run the close in the event loop, but just
      // in case we were closed because the event loop was closed,
      // we need to be ready to handle a `RejectedExecutionException`.
      def doClose(): Unit = {
        logger.info(s"Closing NIO1 channel $socketAddress")
        closed = true
        listeningSet.synchronized {
          listeningSet.remove(this)
        }
        try selectableChannel.close()
        catch {
          case NonFatal(t) => logger.warn(t)("Failure during channel close.")
        } finally connections.close() // allow the acceptor thread through
      }

      try
      // We use `enqueueTask` deliberately so as to not jump ahead
      // of channel initialization.
      selectorLoop.enqueueTask(new Runnable {
        override def run(): Unit = doClose()
      })
      catch {
        case _: RejectedExecutionException =>
          logger.info("Selector loop closed. Closing in local thread.")
          doClose()
      }
    }
  }

  override def closeGroup(): Unit = {
    // Set the state to closed and close any existing acceptors
    val toClose = listeningSet.synchronized {
      if (isClosed) Seq.empty
      else {
        isClosed = true
        val toClose = listeningSet.toVector
        listeningSet.clear()
        toClose
      }
    }
    toClose.foreach(_.close())
  }

  /** Create a [[org.http4s.blaze.channel.ServerChannel]] that will serve the
    * services on the requisite sockets
    */
  override def bind(
      address: InetSocketAddress,
      service: SocketPipelineBuilder
  ): Try[ServerChannel] =
    Try {
      val ch = ServerSocketChannel.open().bind(address)
      ch.configureBlocking(false)
      val loop = acceptorPool.nextLoop()

      val serverChannel = new ServerChannelImpl(ch, loop)
      val closed = listeningSet.synchronized {
        if (isClosed) {
          true
        } else {
          listeningSet += serverChannel
          false
        }
      }

      if (closed) {
        logger.info("Group closed")
        serverChannel.close()
      } else {
        logger.info("Service bound to address " + serverChannel.socketAddress)
        loop.initChannel(serverChannel, buildSocketAcceptor(serverChannel, service))
      }

      serverChannel
    }

  // Will be called from within the SelectorLoop
  private[this] def buildSocketAcceptor(
      ch: ServerChannelImpl,
      service: SocketPipelineBuilder
  )(key: SelectionKey): Selectable = {
    val acceptor = new SocketAcceptor(key, ch, service)
    try key.interestOps(SelectionKey.OP_ACCEPT)
    catch {
      case ex: CancelledKeyException => acceptor.close(Some(ex))
    }
    acceptor
  }

  private[this] def handleClientChannel(
      clientChannel: NIO1ClientChannel,
      service: SocketPipelineBuilder
  ): Unit =
    try {
      clientChannel.configureBlocking(false)
      clientChannel.configureOptions(channelOptions)

      val address = clientChannel.getRemoteAddress
      val loop = workerPool.nextLoop()
      val conn = NIO1Connection(clientChannel)

      // From within the selector loop, constructs a pipeline or
      // just closes the socket if the pipeline builder rejects it.
      def fromKey(key: SelectionKey): Selectable = {
        val head = new NIO1HeadStage(clientChannel, loop, key)
        service(conn).onComplete {
          case Success(tail) =>
            tail.base(head)
            head.inboundCommand(Command.Connected)
            logger.info(s"Accepted connection from $address")

          case Failure(ex) =>
            // Service rejection isn't a network failure, so we close with None
            head.close(None)
            logger.info(ex)(s"Rejected connection from $address")
        }(loop)

        head
      }

      loop.initChannel(clientChannel, fromKey)
    } catch {
      case NonFatal(t) =>
        logger.error(t)("Error handling client channel. Closing.")
        try clientChannel.close()
        catch {
          case NonFatal(t2) =>
            logger.error(t2)("Error closing client channel after error")
        }
    }
}

## 内容7
### 文件路径：
core/src/main/scala/org/http4s/blaze/channel/nio1/SelectorLoop.scala
### 代码内容：
package org.http4s.blaze.channel.nio1

import org.http4s.blaze.util

import java.nio.channels._
import java.io.IOException
import java.nio.ByteBuffer
import java.util.{Set => JSet}
import java.util.concurrent.atomic.AtomicBoolean
import java.util.concurrent.{Executor, RejectedExecutionException, ThreadFactory}

import org.http4s.blaze.internal.compat.CollectionConverters._
import org.http4s.blaze.util.TaskQueue
import org.log4s.getLogger

import scala.concurrent.ExecutionContext
import scala.util.control.{ControlThrowable, NonFatal}

/** A special thread that listens for events on the provided selector.
  *
  * @param selector `Selector` to listen on.
  * @param bufferSize Size of the scratch buffer instantiated for this thread.
  * @param threadFactory Factory to make the `Thread` instance to run the loop.
  *
  * @note when the `SelectorLoop` is closed all registered `Selectable`s
  *       are closed with it.
  */
final class SelectorLoop(
    selector: Selector,
    bufferSize: Int,
    threadFactory: ThreadFactory
) extends Executor
    with ExecutionContext {
  require(bufferSize > 0, s"Invalid buffer size: $bufferSize")

  @volatile
  private[this] var isClosed = false
  private[this] val scratch = ByteBuffer.allocateDirect(bufferSize)
  private[this] val once = new AtomicBoolean(false)
  private[this] val logger = getLogger
  private[this] val taskQueue = new TaskQueue
  private[this] val thread = threadFactory.newThread(new Runnable {
    override def run(): Unit = runLoop()
  })

  private[this] val threadName = thread.getName
  thread.start()

  /** Signal to the [[SelectorLoop]] that it should close */
  def close(): Unit =
    if (once.compareAndSet(false, true)) {
      isClosed = true
      logger.info(s"Shutting down SelectorLoop $threadName")
      selector.wakeup()
      ()
    }

  /** Schedule the provided `Runnable` for execution, potentially running it now
    *
    * The provided task may be executed *now* if the calling thread is `this`
    * `SelectorLoop`, otherwise it is added to the task queue to be executed by
    * the `SelectorLoop` thread later.
    */
  @inline
  @throws[RejectedExecutionException]
  def executeTask(runnable: Runnable): Unit =
    if (Thread.currentThread() != thread) enqueueTask(runnable)
    else
      try runnable.run()
      catch { case NonFatal(t) => reportFailure(t) }

  /** Schedule to provided `Runnable` for execution later
    *
    * The task will be added to the end of the queue of tasks scheduled
    * for execution regardless of where this method is called.
    *
    * @see `executeTask` for a method that will execute the task now if
    *     the calling thread is `this` `SelectorLoop`, or schedule it for
    *     later otherwise.
    */
  @throws[RejectedExecutionException]
  def enqueueTask(runnable: Runnable): Unit =
    taskQueue.enqueueTask(runnable) match {
      case TaskQueue.Enqueued =>
        () // nop

      case TaskQueue.FirstEnqueued =>
        selector.wakeup()
        ()

      case TaskQueue.Closed =>
        throw new RejectedExecutionException("This SelectorLoop is closed.")
    }

  @throws[RejectedExecutionException]
  override def execute(runnable: Runnable): Unit = enqueueTask(runnable)

  override def reportFailure(cause: Throwable): Unit =
    logger.error(cause)(s"Exception executing task in selector loop $threadName")

  /** Initialize a new `Selectable` channel
    *
    * The `SelectableChannel` is added to the selector loop the
    * `Selectable` will be notified when it has events ready.
    *
    * @note the underlying `SelectableChannel` _must_ be
    *       configured in non-blocking mode.
    */
  def initChannel(
      ch: NIO1Channel,
      mkStage: SelectionKey => Selectable
  ): Unit =
    enqueueTask(new Runnable {
      override def run(): Unit =
        if (!selector.isOpen) {
          ch.close()
        } else {
          try {
            // We place all this noise in the `try` since pretty
            // much every method on the `SelectableChannel` can throw.
            require(!ch.selectableChannel.isBlocking, s"Can only register non-blocking channels")
            val key = ch.selectableChannel.register(selector, 0)
            val head = mkStage(key)
            key.attach(head)
            logger.debug("Channel initialized.")
          } catch {
            case t @ (NonFatal(_) | _: ControlThrowable) =>
              logger.error(t)("Caught error during channel init.")
              ch.close()
          }
        }
    })

  // Main thread method. The loop will break if the Selector loop is closed
  private[this] def runLoop(): Unit = {
    var cleanShutdown = true

    try while (!isClosed) {
      // Block here until some I/O event happens or someone adds
      // a task to run and wakes the loop.
      val selected = selector.select()

      // Run any pending tasks. These may set interest ops,
      // just compute something, etc.
      taskQueue.executeTasks()

      // We have some new I/O operations waiting for us. Process them.
      if (selected > 0) {
        processKeys(scratch, selector.selectedKeys)
      }
    } catch {
      case e: ClosedSelectorException =>
        logger.error(e)("Selector unexpectedly closed")
        cleanShutdown = false
        close()

      case NonFatal(t) =>
        logger.error(t)("Unhandled exception in selector loop")
        cleanShutdown = false
        close()
    }

    // If we've made it to here, we've exited the run loop and we need to shut down.
    // We first kill the selector and then drain any remaining tasks since closing
    // attached `Selectable`s may have resulted in more tasks.
    killSelector(cleanShutdown)
    taskQueue.close()
  }

  private[this] def processKeys(scratch: ByteBuffer, selectedKeys: JSet[SelectionKey]): Unit = {
    val it = selectedKeys.iterator()
    while (it.hasNext) {
      val k = it.next()
      it.remove()

      val selectable = getAttachment(k)
      try if (k.isValid) {
        if (selectable != null) {
          selectable.opsReady(scratch)
        } else {
          k.cancel()
          logger.error("Illegal state: selector key had null attachment.")
        }
      } else if (selectable != null) {
        selectable.close(None)
      } catch {
        case t @ (NonFatal(_) | _: ControlThrowable) =>
          logger.error(t)("Error performing channel operations. Closing channel.")
          try selectable.close(Some(t))
          catch {
            case NonFatal(t) =>
              logger.error(t)("Fatal error shutting down pipeline")
          }
      }
    }
  }

  private[this] def killSelector(cleanShutdown: Boolean): Unit =
    // We first close all the associated keys and then close
    // the `Selector` which will then be essentially useless.
    try {
      if (!selector.keys.isEmpty) {
        val ex = cleanShutdown match {
          case true => None
          case false => Some(new ShutdownChannelGroupException)
        }

        selector.keys.asScala.foreach { k =>
          try {
            val head = getAttachment(k)
            if (head != null)
              head.close(ex)
          } catch { case _: IOException => /* NOOP */ }
        }
      }
      selector.close()
    } catch {
      case t @ (NonFatal(_) | _: ControlThrowable) =>
        logger.warn(t)("Killing selector resulted in an exception")
    }

  private[this] def getAttachment(key: SelectionKey): Selectable =
    key.attachment match {
      case null => null
      case s: Selectable => s
      case other =>
        val ex = util.bug(s"Unexpected type: ${other.getClass.getName}")
        logger.error(ex)(ex.getMessage)
        throw ex
    }

  /** A Runnable that will only execute in this selector loop and provides
    * access to the `SelectorLoop`s scratch buffer.
    */
  abstract class LoopRunnable extends Runnable {

    /** Execute the task with the borrowed scratch `ByteBuffer`
      *
      * @param scratch a `ByteBuffer` that is owned by the parent
      *                `SelectorLoop`, and as such, the executing task
      *                _must not_ retain a refer to it.
      */
    def run(scratch: ByteBuffer): Unit

    final override def run(): Unit = {
      val currentThread = Thread.currentThread
      if (currentThread == thread) run(scratch)
      else {
        val msg = "Task rejected: executed RunWithScratch in incorrect " +
          s"thread: $currentThread. Expected thread: $thread."
        val ex = new IllegalStateException(msg)
        logger.error(ex)(msg)
      }
    }
  }
}

## 内容8
### 文件路径：
core/src/main/scala/org/http4s/blaze/channel/nio2/NIO2SocketServerGroup.scala
### 代码内容：
package org.http4s.blaze.channel.nio2

import java.net.InetSocketAddress
import java.nio.channels._
import java.util.Date
import java.util.concurrent.ThreadFactory

import org.http4s.blaze.channel._
import org.http4s.blaze.pipeline.Command.Connected
import org.http4s.blaze.util.{BasicThreadFactory, Execution}
import org.log4s.getLogger

import scala.util.{Failure, Success, Try}
import scala.util.control.NonFatal

@deprecated("Prefer NIO1 over NIO2", "0.14.15")
object NIO2SocketServerGroup {

  /** Create a new fixed size NIO2 SocketServerGroup
    *
    * @param workerThreads number of worker threads for the new group
    * @param bufferSize buffer size use for IO operations
    * @param channelOptions options to apply to the client connections
    */
  def fixedGroup(
      workerThreads: Int = DefaultPoolSize,
      bufferSize: Int = DefaultBufferSize,
      channelOptions: ChannelOptions = ChannelOptions.DefaultOptions,
      threadFactory: ThreadFactory = DefaultThreadFactory
  ): NIO2SocketServerGroup = {
    val group =
      AsynchronousChannelGroup.withFixedThreadPool(workerThreads, threadFactory)
    apply(bufferSize, Some(group), channelOptions)
  }

  private val DefaultThreadFactory =
    BasicThreadFactory(prefix = s"blaze-nio2-fixed-pool", daemonThreads = false)

  /** Create a new NIO2 SocketServerGroup
    *
    * @param bufferSize buffer size use for IO operations
    * @param group optional `AsynchronousChannelGroup`, uses the system default if `None`
    * @param channelOptions options to apply to the client connections
    */
  def apply(
      bufferSize: Int = 8 * 1024,
      group: Option[AsynchronousChannelGroup] = None,
      channelOptions: ChannelOptions = ChannelOptions.DefaultOptions
  ): NIO2SocketServerGroup =
    new NIO2SocketServerGroup(bufferSize, group.orNull, channelOptions)
}

final class NIO2SocketServerGroup private (
    bufferSize: Int,
    group: AsynchronousChannelGroup,
    channelOptions: ChannelOptions)
    extends ServerChannelGroup {
  private[this] val logger = getLogger

  /** Closes the group along with all current connections.
    *
    * __WARNING:__ the default group, or the system wide group, will __NOT__ be shut down and
    * will result in an `IllegalStateException`.
    */
  override def closeGroup(): Unit =
    if (group != null) {
      logger.info("Closing NIO2 SocketChannelServerGroup")
      group.shutdownNow()
    } else
      throw new IllegalStateException(
        "Cannot shut down the system default AsynchronousChannelGroup.")

  def bind(address: InetSocketAddress, service: SocketPipelineBuilder): Try[ServerChannel] =
    Try {
      val ch = AsynchronousServerSocketChannel.open(group).bind(address)
      val serverChannel =
        new NIO2ServerChannel(ch.getLocalAddress.asInstanceOf[InetSocketAddress], ch, service)
      serverChannel.listen()
      serverChannel
    }

  private[this] final class NIO2ServerChannel(
      val socketAddress: InetSocketAddress,
      ch: AsynchronousServerSocketChannel,
      service: SocketPipelineBuilder)
      extends ServerChannel {
    override protected def closeChannel(): Unit =
      if (ch.isOpen()) {
        logger.info(s"Closing NIO2 channel $socketAddress at ${new Date}")
        try ch.close()
        catch {
          case NonFatal(t) => logger.debug(t)("Failure during channel close")
        }
      }

    def errorClose(e: Throwable): Unit = {
      logger.error(e)("Server socket channel closed with error.")
      normalClose()
    }

    def normalClose(): Unit =
      try close()
      catch {
        case NonFatal(e) =>
          logger.error(e)("Error on NIO2ServerChannel shutdown invoked by listen loop.")
      }

    def listen(): Unit = {
      val handler = new CompletionHandler[AsynchronousSocketChannel, Null] {
        override def completed(ch: AsynchronousSocketChannel, attachment: Null): Unit = {
          // Constructs a new pipeline, presuming the
          // pipeline builder accepts the socket
          service(new NIO2SocketConnection(ch)).onComplete {
            case Success(tail) =>
              channelOptions.applyToChannel(ch)
              tail
                .base(new ByteBufferHead(ch, bufferSize))
                .sendInboundCommand(Connected)

            case Failure(ex) =>
              val address = ch.getRemoteAddress
              ch.close()
              logger.info(ex)(s"Rejected connection from $address")
          }(Execution.trampoline)

          listen() // Continue the circle of life
        }

        override def failed(exc: Throwable, attachment: Null): Unit =
          exc match {
            case _: AsynchronousCloseException => normalClose()
            case _: ClosedChannelException => normalClose()
            case _: ShutdownChannelGroupException => normalClose()
            case _ =>
              logger.error(exc)(s"Error accepting connection on address $socketAddress")
              // If the server channel cannot go on, disconnect it.
              if (!ch.isOpen()) errorClose(exc)
          }
      }

      try ch.accept(null, handler)
      catch { case NonFatal(t) => handler.failed(t, null) }
    }
  }
}

## 内容9
### 文件路径：
core/src/main/scala/org/http4s/blaze/channel/package.scala
### 代码内容：
package org.http4s.blaze

import java.nio.ByteBuffer

import org.http4s.blaze.pipeline.LeafBuilder

import scala.concurrent.Future

package object channel {
  type SocketPipelineBuilder = SocketConnection => Future[LeafBuilder[ByteBuffer]]

  /** Default number of threads used to make a new
    * [[org.http4s.blaze.channel.nio1.SelectorLoopPool]] if not specified
    */
  val DefaultPoolSize: Int =
    math.max(4, Runtime.getRuntime.availableProcessors() + 1)

  /** Default max number of connections that can be active at any time.
    * A negative number means that there is no max.
    */
  val DefaultMaxConnections: Int = 512
}

## 内容10
### 文件路径：
core/src/main/scala/org/http4s/blaze/util/Connections.scala
### 代码内容：
package org.http4s.blaze.util

import java.util.concurrent.Semaphore

private[blaze] sealed trait Connections {
  def acquire(): Unit
  def release(): Unit
  def close(): Unit = release()
}

private[blaze] object Connections {

  def apply(maxConnections: Int): Connections =
    if (maxConnections < 0) Unbounded else new Bounded(maxConnections)

  private[this] object Unbounded extends Connections {
    override def acquire(): Unit = ()
    override def release(): Unit = ()
  }

  private[this] final class Bounded(maxConnections: Int) extends Connections {
    val semaphore = new Semaphore(maxConnections)
    override def acquire(): Unit = semaphore.acquire()
    override def release(): Unit = semaphore.release()
  }

}

## 内容11
### 文件路径：
examples/src/main/scala/org/http4s/blaze/examples/Http1ServerExample.scala
### 代码内容：
package org.http4s.blaze.examples

import java.net.InetSocketAddress
import java.nio.ByteBuffer
import java.util.concurrent.atomic.AtomicReference

import org.http4s.blaze.channel
import org.http4s.blaze.channel._
import org.http4s.blaze.channel.nio1.NIO1SocketServerGroup
import org.http4s.blaze.channel.nio2.NIO2SocketServerGroup
import org.http4s.blaze.http.HttpServerStageConfig
import org.http4s.blaze.http.http1.server.Http1ServerStage
import org.http4s.blaze.pipeline.stages.SSLStage
import org.http4s.blaze.pipeline.LeafBuilder
import org.http4s.blaze.pipeline.stages.monitors.IntervalConnectionMonitor

import scala.concurrent.Future
import scala.concurrent.duration._

class Http1ServerExample(factory: ServerChannelGroup, port: Int)(
    trans: LeafBuilder[ByteBuffer] => LeafBuilder[ByteBuffer] = identity(_)) {
  private val status = new IntervalConnectionMonitor(2.seconds)
  private val config = HttpServerStageConfig() // just the default config

  def run(): ServerChannel = {
    val ref = new AtomicReference[ServerChannel](null)
    val f: SocketPipelineBuilder =
      status.wrapBuilder { _ =>
        val stage =
          new Http1ServerStage(ExampleService.service(Some(status), Some(ref)), config)
        Future.successful(trans(LeafBuilder(stage)))
      }

    val address = new InetSocketAddress(port)
    val ch =
      factory.bind(address, f).getOrElse(sys.error("Failed to start server."))
    ref.set(ch)
    ch
  }
}

/** Opens a demo server on ports 8080 */
object NIO1HttpServer {
  def main(args: Array[String]): Unit = {
    val f =
      NIO1SocketServerGroup.fixed(workerThreads = channel.DefaultPoolSize)
    new Http1ServerExample(f, 8080)()
      .run()
      .join()

    println("Finished.")
  }
}

object NIO2HttpServer {
  def main(args: Array[String]): Unit = {
    val f = NIO2SocketServerGroup()
    new Http1ServerExample(f, 8080)()
      .run()
      .join()

    println("Finished.")
  }
}

object SSLHttpServer {
  def main(args: Array[String]): Unit = {
    val sslContext = ExampleKeystore.sslContext()
    val f =
      NIO1SocketServerGroup.fixed(workerThreads = channel.DefaultPoolSize)
    new Http1ServerExample(f, 4430)({ builder =>
      val eng = sslContext.createSSLEngine()
      eng.setUseClientMode(false)
      builder.prepend(new SSLStage(eng, 100 * 1024))
    }).run()
      .join()

    println("Finished.")
  }
}

object ClientAuthSSLHttpServer {
  def main(args: Array[String]): Unit = {
    val sslContext = ExampleKeystore.clientAuthSslContext()
    val f =
      NIO1SocketServerGroup.fixed(workerThreads = channel.DefaultPoolSize)
    new Http1ServerExample(f, 4430)({ builder =>
      val eng = sslContext.createSSLEngine()
      eng.setUseClientMode(false)
      eng.setNeedClientAuth(true)
      builder.prepend(new SSLStage(eng, 100 * 1024))
    }).run()
      .join()

    println("Finished.")
  }
}

## 内容12
### 文件路径：
examples/src/main/scala/org/http4s/blaze/examples/http2/Http2ServerExample.scala
### 代码内容：
package org.http4s.blaze.examples.http2

import java.net.InetSocketAddress

import org.http4s.blaze.channel
import org.http4s.blaze.channel._
import org.http4s.blaze.channel.nio1.NIO1SocketServerGroup
import org.http4s.blaze.examples.{ExampleKeystore, ExampleService}
import org.http4s.blaze.http.HttpServerStageConfig
import org.http4s.blaze.http.http2.server.ServerSelector
import org.http4s.blaze.pipeline.TrunkBuilder
import org.http4s.blaze.pipeline.stages.SSLStage

import scala.concurrent.Future

/** Basic HTTP/2 server example
  *
  * The server is capable of serving traffic over both HTTP/1.x and HTTP/2
  * using TLS.
  *
  * @note the Jetty ALPN boot library must have been loaded in order for
  *       ALPN negotiation to happen. See the Jetty docs at
  *       https://www.eclipse.org/jetty/documentation/9.3.x/alpn-chapter.html
  *       for more information.
  */
class Http2ServerExample(port: Int) {
  private val sslContext = ExampleKeystore.sslContext()

  private val f: SocketPipelineBuilder = { _ =>
    val eng = sslContext.createSSLEngine()
    eng.setUseClientMode(false)
    Future.successful(
      TrunkBuilder(new SSLStage(eng))
        .cap(ServerSelector(eng, ExampleService.service(None), HttpServerStageConfig())))
  }

  private val factory =
    NIO1SocketServerGroup.fixed(workerThreads = channel.DefaultPoolSize)

  def run(): ServerChannel =
    factory
      .bind(new InetSocketAddress(port), f)
      .getOrElse(sys.error("Failed to start server."))
}

object Http2ServerExample {
  def main(args: Array[String]): Unit = {
    val port = 8443
    println(s"Starting HTTP/2 compatible server on port $port")
    new Http2ServerExample(port).run().join()
  }
}

## 内容13
### 文件路径：
http/src/main/scala/org/http4s/blaze/http/http1/server/Http1Server.scala
### 代码内容：
package org.http4s.blaze.http.http1.server

import java.net.InetSocketAddress

import org.http4s.blaze.channel
import org.http4s.blaze.channel._
import org.http4s.blaze.channel.nio1.NIO1SocketServerGroup
import org.http4s.blaze.channel.nio2.NIO2SocketServerGroup
import org.http4s.blaze.http.{HttpServerStageConfig, _}
import org.http4s.blaze.pipeline.LeafBuilder
import org.http4s.blaze.util.Execution

import scala.concurrent.Future
import scala.util.Try

object Http1Server {
  case class GroupAndChannel(group: ServerChannelGroup, channel: ServerChannel)

  /** Create a new Http1Server */
  @deprecated("Prefer NIO1 over NIO2. Use nio1 constructor method.", "0.14.15")
  def apply(
      service: SocketConnection => Future[HttpService],
      address: InetSocketAddress,
      config: HttpServerStageConfig,
      useNio2: Boolean = false,
      workerThreads: Int = channel.DefaultPoolSize): Try[GroupAndChannel] = {
    val group: ServerChannelGroup =
      if (useNio2)
        NIO2SocketServerGroup.fixedGroup(workerThreads = workerThreads)
      else NIO1SocketServerGroup.fixedGroup(workerThreads = workerThreads)

    val builder = service(_: SocketConnection).map { service =>
      LeafBuilder(new Http1ServerStage(service, config))
    }(Execution.directec)

    val channel = group.bind(address, builder)
    if (channel.isFailure) group.closeGroup()
    channel.map(GroupAndChannel(group, _))
  }

  def nio1(
      service: SocketConnection => Future[HttpService],
      address: InetSocketAddress,
      config: HttpServerStageConfig,
      workerThreads: Int = channel.DefaultPoolSize): Try[GroupAndChannel] = {
    val group: ServerChannelGroup = NIO1SocketServerGroup.fixed(workerThreads = workerThreads)

    val builder = service(_: SocketConnection).map { service =>
      LeafBuilder(new Http1ServerStage(service, config))
    }(Execution.directec)

    val channel = group.bind(address, builder)
    if (channel.isFailure) group.closeGroup()
    channel.map(GroupAndChannel(group, _))
  }
}

Output:
【漏洞类型】资源耗尽漏洞
【严重性】High
【漏洞摘要】原始代码中`NIO1SocketServerGroup`类的`fixedGroup`和`fixed`方法没有对接受到的连接数进行限制，这可能导致服务器接受过多连接而耗尽资源。在修复后的代码中，引入了一个`maxConnections`参数，并使用`Connections`类来限制连接数。
【关键代码模式】
- `NIO1SocketServerGroup`类
- `fixedGroup`方法
- `fixed`方法
- `maxConnections`参数
- `Connections`类
【修复方法说明】通过引入`maxConnections`参数并使用`Connections`类来限制接受的连接数，修复了资源耗尽漏洞。


Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
src/main/java/org/traccar/WindowsService.java
### 代码内容：
package org.traccar;

import com.sun.jna.Pointer;
import com.sun.jna.platform.win32.Advapi32;
import com.sun.jna.platform.win32.WinError;
import com.sun.jna.platform.win32.WinNT;
import com.sun.jna.platform.win32.Winsvc;
import com.sun.jna.platform.win32.Winsvc.HandlerEx;
import com.sun.jna.platform.win32.Winsvc.SC_HANDLE;
import com.sun.jna.platform.win32.Winsvc.SERVICE_DESCRIPTION;
import com.sun.jna.platform.win32.Winsvc.SERVICE_MAIN_FUNCTION;
import com.sun.jna.platform.win32.Winsvc.SERVICE_STATUS;
import com.sun.jna.platform.win32.Winsvc.SERVICE_STATUS_HANDLE;
import com.sun.jna.platform.win32.Winsvc.SERVICE_TABLE_ENTRY;
import jnr.posix.POSIXFactory;

import java.io.File;
import java.net.URISyntaxException;

public abstract class WindowsService {

    private static final Advapi32 ADVAPI_32 = Advapi32.INSTANCE;

    private final Object waitObject = new Object();

    private final String serviceName;
    private SERVICE_STATUS_HANDLE serviceStatusHandle;

    public WindowsService(String serviceName) {
        this.serviceName = serviceName;
    }

    public void install(
            String displayName, String description, String[] dependencies,
            String account, String password, String config) throws URISyntaxException {

        String javaHome = System.getProperty("java.home");
        String javaBinary = javaHome + "\\bin\\java.exe";

        File jar = new File(WindowsService.class.getProtectionDomain().getCodeSource().getLocation().toURI());
        String command = javaBinary
                + " -Duser.dir=\"" + jar.getParentFile().getAbsolutePath() + "\""
                + " -jar \"" + jar.getAbsolutePath() + "\""
                + " --service \"" + config + "\"";

        StringBuilder dep = new StringBuilder();

        if (dependencies != null) {
            for (String s : dependencies) {
                dep.append(s);
                dep.append("\0");
            }
        }
        dep.append("\0");

        SERVICE_DESCRIPTION desc = new SERVICE_DESCRIPTION();
        desc.lpDescription = description;

        SC_HANDLE serviceManager = openServiceControlManager(null, Winsvc.SC_MANAGER_ALL_ACCESS);

        if (serviceManager != null) {
            SC_HANDLE service = ADVAPI_32.CreateService(serviceManager, serviceName, displayName,
                    Winsvc.SERVICE_ALL_ACCESS, WinNT.SERVICE_WIN32_OWN_PROCESS, WinNT.SERVICE_AUTO_START,
                    WinNT.SERVICE_ERROR_NORMAL,
                    command,
                    null, null, dep.toString(), account, password);

            if (service != null) {
                ADVAPI_32.ChangeServiceConfig2(service, Winsvc.SERVICE_CONFIG_DESCRIPTION, desc);
                ADVAPI_32.CloseServiceHandle(service);
            }
            ADVAPI_32.CloseServiceHandle(serviceManager);
        }
    }

    public void uninstall() {
        SC_HANDLE serviceManager = openServiceControlManager(null, Winsvc.SC_MANAGER_ALL_ACCESS);

        if (serviceManager != null) {
            SC_HANDLE service = ADVAPI_32.OpenService(serviceManager, serviceName, Winsvc.SERVICE_ALL_ACCESS);

            if (service != null) {
                ADVAPI_32.DeleteService(service);
                ADVAPI_32.CloseServiceHandle(service);
            }
            ADVAPI_32.CloseServiceHandle(serviceManager);
        }
    }

    public boolean start() {
        boolean success = false;

        SC_HANDLE serviceManager = openServiceControlManager(null, WinNT.GENERIC_EXECUTE);

        if (serviceManager != null) {
            SC_HANDLE service = ADVAPI_32.OpenService(serviceManager, serviceName, WinNT.GENERIC_EXECUTE);

            if (service != null) {
                success = ADVAPI_32.StartService(service, 0, null);
                ADVAPI_32.CloseServiceHandle(service);
            }
            ADVAPI_32.CloseServiceHandle(serviceManager);
        }

        return success;
    }

    public boolean stop() {
        boolean success = false;

        SC_HANDLE serviceManager = openServiceControlManager(null, WinNT.GENERIC_EXECUTE);

        if (serviceManager != null) {
            SC_HANDLE service = Advapi32.INSTANCE.OpenService(serviceManager, serviceName, WinNT.GENERIC_EXECUTE);

            if (service != null) {
                SERVICE_STATUS serviceStatus = new SERVICE_STATUS();
                success = Advapi32.INSTANCE.ControlService(service, Winsvc.SERVICE_CONTROL_STOP, serviceStatus);
                Advapi32.INSTANCE.CloseServiceHandle(service);
            }
            Advapi32.INSTANCE.CloseServiceHandle(serviceManager);
        }

        return success;
    }

    public void init() throws URISyntaxException {
        String path = new File(
                WindowsService.class.getProtectionDomain().getCodeSource().getLocation().toURI()).getParent();

        POSIXFactory.getPOSIX().chdir(path);

        ServiceMain serviceMain = new ServiceMain();
        SERVICE_TABLE_ENTRY entry = new SERVICE_TABLE_ENTRY();
        entry.lpServiceName = serviceName;
        entry.lpServiceProc = serviceMain;

        Advapi32.INSTANCE.StartServiceCtrlDispatcher((SERVICE_TABLE_ENTRY[]) entry.toArray(2));
    }

    private SC_HANDLE openServiceControlManager(String machine, int access) {
        return ADVAPI_32.OpenSCManager(machine, null, access);
    }

    private void reportStatus(int status, int win32ExitCode, int waitHint) {
        SERVICE_STATUS serviceStatus = new SERVICE_STATUS();
        serviceStatus.dwServiceType = WinNT.SERVICE_WIN32_OWN_PROCESS;
        serviceStatus.dwControlsAccepted = Winsvc.SERVICE_ACCEPT_STOP | Winsvc.SERVICE_ACCEPT_SHUTDOWN;
        serviceStatus.dwWin32ExitCode = win32ExitCode;
        serviceStatus.dwWaitHint = waitHint;
        serviceStatus.dwCurrentState = status;

        ADVAPI_32.SetServiceStatus(serviceStatusHandle, serviceStatus);
    }

    public abstract void run();

    private class ServiceMain implements SERVICE_MAIN_FUNCTION {

        public void callback(int dwArgc, Pointer lpszArgv) {
            ServiceControl serviceControl = new ServiceControl();
            serviceStatusHandle = ADVAPI_32.RegisterServiceCtrlHandlerEx(serviceName, serviceControl, null);

            reportStatus(Winsvc.SERVICE_START_PENDING, WinError.NO_ERROR, 3000);
            reportStatus(Winsvc.SERVICE_RUNNING, WinError.NO_ERROR, 0);

            Thread.currentThread().setContextClassLoader(WindowsService.class.getClassLoader());

            run();

            try {
                synchronized (waitObject) {
                    waitObject.wait();
                }
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

            reportStatus(Winsvc.SERVICE_STOPPED, WinError.NO_ERROR, 0);

            // Avoid returning from ServiceMain, which will cause a crash
            // See http://support.microsoft.com/kb/201349, which recommends
            // having init() wait for this thread.
            // Waiting on this thread in init() won't fix the crash, though.

            System.exit(0);
        }

    }

    private class ServiceControl implements HandlerEx {

        public int callback(int dwControl, int dwEventType, Pointer lpEventData, Pointer lpContext) {
            switch (dwControl) {
                case Winsvc.SERVICE_CONTROL_STOP:
                case Winsvc.SERVICE_CONTROL_SHUTDOWN:
                    reportStatus(Winsvc.SERVICE_STOP_PENDING, WinError.NO_ERROR, 5000);
                    synchronized (waitObject) {
                        waitObject.notifyAll();
                    }
                    break;
                default:
                    break;
            }
            return WinError.NO_ERROR;
        }

    }

}

Output:
【漏洞类型】命令注入漏洞
【严重性】High
【漏洞摘要】原始代码中的 `install` 方法存在命令注入漏洞。具体表现为在构建 `command` 字符串时，直接将用户提供的 `config` 参数拼接到命令行中，而没有进行任何验证或转义。攻击者可以通过在 `config` 参数中插入恶意命令，从而在目标系统上执行任意代码。
【关键代码模式】
- `String command = javaBinary + " --service \"" + config + "\"";`
- `ADVAPI_32.CreateService(serviceManager, serviceName, displayName, Winsvc.SERVICE_ALL_ACCESS, WinNT.SERVICE_WIN32_OWN_PROCESS, WinNT.SERVICE_AUTO_START, WinNT.SERVICE_ERROR_NORMAL, command, null, null, dep.toString(), account, password);`
【修复方法说明】修复方法通过在 `javaBinary` 变量的值周围添加引号，确保命令行参数的正确解析，从而防止命令注入攻击。这遵循了最佳实践中的参数化查询和输入验证原则。