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‎.gitignore

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.idea

‎README.md

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‎coding-style/java/app-proxy/README.md

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### An example of proxy-server.
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The application allows to create a local proxy server for local debugging of web applications.
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### Requirements
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Installation of the Java 6 or higher.
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### Build and run
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```bash
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mvn -f ./pom.xml -Dproxy.target=https://target.com -Denv.src.path=C:/sources/project -Denv.proxy.port=8090 -Dproxy.pattern=/api* -Dproxy.debug=true clean install
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```
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### Features
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Ability to specify:
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+ debug mode (-Dproxy.debug)
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+ REST-pattern (-Dproxy.pattern)
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+ local server port (-Denv.proxy.port)
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+ remote server (-Dproxy.target)
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+ local web sources directory (-Denv.src.path)
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‎coding-style/java/app-proxy/pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>poterenko.com</groupId>
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<artifactId>app.proxy</artifactId>
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<packaging>war</packaging>
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<version>1.0</version>
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<name>An example of proxy-server</name>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<src.version>1.7</src.version>
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<webapp.dir>${env.src.path}</webapp.dir>
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<proxy.port>${env.proxy.port}</proxy.port>
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<artifact.name>app-proxy</artifact.name>
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<javax.servlet.api.version>3.0.1</javax.servlet.api.version>
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<guice.version>3.0</guice.version>
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<maven.compiler.plugin.version>3.3</maven.compiler.plugin.version>
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<maven.jetty.plugin.version>6.1.26</maven.jetty.plugin.version>
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<commons.io.version>1.3.2</commons.io.version>
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<google.http.client.version>1.20.0</google.http.client.version>
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<slf4j.api.version>1.6.2</slf4j.api.version>
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<slf4j.simple.version>1.7.9</slf4j.simple.version>
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</properties>
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<dependencyManagement>
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<dependencies>
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<!--Servlets-->
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>javax.servlet-api</artifactId>
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<version>${javax.servlet.api.version}</version>
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</dependency>
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<!--Jetty-->
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<dependency>
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<groupId>org.mortbay.jetty</groupId>
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<artifactId>maven-jetty-plugin</artifactId>
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<version>${maven.jetty.plugin.version}</version>
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<exclusions>
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<exclusion>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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</exclusion>
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<exclusion>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-nop</artifactId>
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</exclusion>
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<exclusion>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-jdk14</artifactId>
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</exclusion>
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</exclusions>
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</dependency>
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<!--Apache-->
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<dependency>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>${maven.compiler.plugin.version}</version>
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<exclusions>
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<exclusion>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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</exclusion>
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<exclusion>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-nop</artifactId>
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</exclusion>
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<exclusion>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-jdk14</artifactId>
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</exclusion>
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</exclusions>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-io</artifactId>
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<version>${commons.io.version}</version>
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</dependency>
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<!--Http-->
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<dependency>
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<groupId>com.google.http-client</groupId>
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<artifactId>google-http-client</artifactId>
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<version>${google.http.client.version}</version>
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</dependency>
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<!--Log-->
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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<version>${slf4j.api.version}</version>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-simple</artifactId>
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<version>${slf4j.simple.version}</version>
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</dependency>
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<!--IoC-->
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<dependency>
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<groupId>com.google.inject</groupId>
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<artifactId>guice</artifactId>
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<version>${guice.version}</version>
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</dependency>
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<dependency>
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<groupId>com.google.inject.extensions</groupId>
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<artifactId>guice-servlet</artifactId>
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<version>${guice.version}</version>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<!--Servlets-->
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>javax.servlet-api</artifactId>
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</dependency>
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<!--Jetty-->
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<dependency>
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<groupId>org.mortbay.jetty</groupId>
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<artifactId>maven-jetty-plugin</artifactId>
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</dependency>
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<!--Apache-->
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<dependency>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-io</artifactId>
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</dependency>
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<!--Http-->
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<dependency>
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<groupId>com.google.http-client</groupId>
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<artifactId>google-http-client</artifactId>
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</dependency>
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<!--Log-->
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-simple</artifactId>
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</dependency>
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<!--IoC-->
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<dependency>
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<groupId>com.google.inject</groupId>
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<artifactId>guice</artifactId>
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</dependency>
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<dependency>
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<groupId>com.google.inject.extensions</groupId>
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<artifactId>guice-servlet</artifactId>
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</dependency>
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</dependencies>
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<build>
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<finalName>${artifact.name}</finalName>
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<sourceDirectory>src/main/java</sourceDirectory>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>${maven.compiler.plugin.version}</version>
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<configuration>
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<source>${src.version}</source>
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<target>${src.version}</target>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.mortbay.jetty</groupId>
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<artifactId>maven-jetty-plugin</artifactId>
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<version>${maven.jetty.plugin.version}</version>
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<configuration>
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<webAppConfig>
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<defaultsDescriptor>${basedir}/src/main/resources/webdefault.xml</defaultsDescriptor>
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<contextPath>/</contextPath>
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<baseResource implementation="org.mortbay.resource.ResourceCollection">
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<resourcesAsCSV>${webapp.dir}</resourcesAsCSV>
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</baseResource>
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</webAppConfig>
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<connectors>
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<connector implementation="org.mortbay.jetty.nio.SelectChannelConnector">
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<port>${proxy.port}</port>
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</connector>
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</connectors>
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</configuration>
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<executions>
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<execution>
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<id>install-jetty</id>
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<phase>install</phase>
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<goals>
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<goal>run</goal>
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</goals>
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<configuration>
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<daemon>false</daemon>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>

‎coding-style/java/app-proxy/src/main/java/com/poterenko/proxy/ProxyConstants.java

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package com.poterenko.proxy;
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public final class ProxyConstants {
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public static final String PROXY_TARGET = "proxy.target";
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public static final String PROXY_PATTERN = "proxy.pattern";
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public static final String PROXY_DEBUG = "proxy.debug";
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public static final String QUERY_SEPARATOR = "?";
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public static final String DEBUG_COOKIE_NAME = "debug";
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}

‎coding-style/java/app-proxy/src/main/java/com/poterenko/proxy/ProxyModule.java

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package com.poterenko.proxy;
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import com.google.api.client.http.HttpRequest;
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import com.google.api.client.http.HttpRequestFactory;
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import com.google.api.client.http.HttpTransport;
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import com.google.api.client.http.javanet.NetHttpTransport;
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import com.google.common.base.Function;
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import com.google.inject.Provides;
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import com.google.inject.TypeLiteral;
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import com.google.inject.servlet.ServletModule;
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import com.poterenko.proxy.cookie.CookieChecker;
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import com.poterenko.proxy.cookie.impl.CookieCheckerImpl;
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import com.poterenko.proxy.cookie.impl.ToCookieNameFunction;
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import com.poterenko.proxy.request.ProxyRequestProvider;
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import com.poterenko.proxy.servlets.ProxyApiFilter;
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import com.poterenko.proxy.servlets.ProxyCookieFilter;
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import static java.lang.System.getProperty;
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import static org.apache.maven.shared.utils.StringUtils.isEmpty;
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import javax.inject.Named;
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import javax.inject.Singleton;
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import javax.servlet.http.Cookie;
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public class ProxyModule extends ServletModule {
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@Override
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protected void configureServlets() {
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if (!isEmpty(getProperty(ProxyConstants.PROXY_DEBUG))) {
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filter("*").through(ProxyCookieFilter.class);
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}
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filter(getProperty(ProxyConstants.PROXY_PATTERN)).through(ProxyApiFilter.class);
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bind(HttpRequest.class).toProvider(ProxyRequestProvider.class);
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bind(HttpTransport.class).toInstance(new NetHttpTransport.Builder().build());
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bind(CookieChecker.class).to(CookieCheckerImpl.class).asEagerSingleton();
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bind(new TypeLiteral<Function<Cookie, String>>() {}).to(ToCookieNameFunction.class);
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}
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@Provides
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@Singleton
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@Named(ProxyConstants.PROXY_TARGET)
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protected String getHost() {
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return getProperty(ProxyConstants.PROXY_TARGET);
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}
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@Provides
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@Singleton
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protected HttpRequestFactory getHttpRequestFactory(HttpTransport transport) {
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return transport.createRequestFactory();
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}
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}

‎coding-style/java/app-proxy/src/main/java/com/poterenko/proxy/cookie/CookieChecker.java

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package com.poterenko.proxy.cookie;
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public interface CookieChecker {
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boolean hasCookie(String name);
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}

‎coding-style/java/app-proxy/src/main/java/com/poterenko/proxy/cookie/impl/CookieCheckerImpl.java

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package com.poterenko.proxy.cookie.impl;
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import com.google.common.base.Function;
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import com.poterenko.proxy.cookie.CookieChecker;
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import javax.annotation.Nullable;
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import javax.inject.Inject;
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import javax.inject.Provider;
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import javax.servlet.http.Cookie;
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import javax.servlet.http.HttpServletRequest;
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import static com.google.common.collect.Collections2.transform;
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import static java.util.Arrays.asList;
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public class CookieCheckerImpl implements CookieChecker {
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@Inject
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private Provider<HttpServletRequest> servletRequestProvider;
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@Inject
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private Function<Cookie, String> toCookieNameFunction;
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@Override
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public boolean hasCookie(String name) {
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final HttpServletRequest request = servletRequestProvider.get();
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final @Nullable Cookie[] cookies = request.getCookies();
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return cookies != null && transform(asList(cookies), toCookieNameFunction).contains(name);
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}
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}

‎coding-style/java/app-proxy/src/main/java/com/poterenko/proxy/cookie/impl/ToCookieNameFunction.java

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package com.poterenko.proxy.cookie.impl;
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import com.google.common.base.Function;
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import javax.servlet.http.Cookie;
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public class ToCookieNameFunction implements Function<Cookie, String> {
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@Override
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public String apply(Cookie c) {
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return c.getName();
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}
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}

‎coding-style/java/app-proxy/src/main/java/com/poterenko/proxy/guice/InjectorHelper.java

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package com.poterenko.proxy.guice;
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import com.google.inject.Injector;
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import javax.servlet.ServletContextEvent;
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public class InjectorHelper {
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public static Injector getInjector(ServletContextEvent servletContextEvent) {
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return (Injector) servletContextEvent
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.getServletContext()
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.getAttribute(Injector.class.getName());
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}
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}

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