├── .gitignore ├── .mvn └── wrapper │ ├── maven-wrapper.jar │ └── maven-wrapper.properties ├── LICENSE ├── LICENSE.txt ├── README.adoc ├── README.md ├── mvnw ├── mvnw.cmd ├── pom.xml └── src ├── main ├── java │ └── org │ │ └── springframework │ │ └── cloud │ │ ├── samplebackendbar │ │ └── BarApplication.java │ │ ├── samplebackendfoo │ │ └── FooApplication.java │ │ └── samplezuulfilters │ │ ├── AddResponseHeaderFilter.java │ │ ├── ModifyResponseBodyFilter.java │ │ ├── ModifyResponseDataStreamFilter.java │ │ ├── PrefixRequestEntityFilter.java │ │ ├── QueryParamPortPreFilter.java │ │ ├── QueryParamServiceIdPreFilter.java │ │ ├── UppercaseRequestEntityFilter.java │ │ └── ZuulGatewayApplication.java └── resources │ └── application.yml └── test └── java └── org └── springframework └── cloud └── samplezuulfilters └── ZuulGatewayApplicationTests.java /.gitignore: -------------------------------------------------------------------------------- 1 | *~ 2 | #* 3 | *# 4 | .#* 5 | .classpath 6 | .project 7 | .settings/ 8 | .springBeans 9 | target/ 10 | bin/ 11 | _site/ 12 | .idea 13 | *.iml 14 | *.ipr 15 | *.iws 16 | .factorypath 17 | *.log 18 | .shelf 19 | *.swp 20 | *.swo 21 | -------------------------------------------------------------------------------- /.mvn/wrapper/maven-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/spring-attic/sample-zuul-filters/d0e6f5a5d966ee14540c771566a1f1392cbd1455/.mvn/wrapper/maven-wrapper.jar -------------------------------------------------------------------------------- /.mvn/wrapper/maven-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionUrl=https://repo1.maven.org/maven2/org/apache/maven/apache-maven/3.3.9/apache-maven-3.3.9-bin.zip 2 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | 2 | Apache License 3 | Version 2.0, January 2004 4 | http://www.apache.org/licenses/ 5 | 6 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 7 | 8 | 1. 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The text should be enclosed in the appropriate 185 | comment syntax for the file format. We also recommend that a 186 | file or class name and description of purpose be included on the 187 | same "printed page" as the copyright notice for easier 188 | identification within third-party archives. 189 | 190 | Copyright [yyyy] [name of copyright owner] 191 | 192 | Licensed under the Apache License, Version 2.0 (the "License"); 193 | you may not use this file except in compliance with the License. 194 | You may obtain a copy of the License at 195 | 196 | http://www.apache.org/licenses/LICENSE-2.0 197 | 198 | Unless required by applicable law or agreed to in writing, software 199 | distributed under the License is distributed on an "AS IS" BASIS, 200 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 201 | See the License for the specific language governing permissions and 202 | limitations under the License. 203 | -------------------------------------------------------------------------------- /README.adoc: -------------------------------------------------------------------------------- 1 | # sample-zuul-filters is no longer actively maintained by VMware, Inc. 2 | 3 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Sample Zuul Filters 2 | 3 | Run the 3 application classes as spring boot applications. 4 | 5 | - `ZuulGatewayApplication`: runs zuul on port 8080 6 | - `FooApplication`: hosts a `/foo` service on port 9080 7 | - `BarApplication`: hosts a `/foo` service with a different implementation on port 7080 8 | 9 | 10 | There are a number of filters are implemented: 11 | 12 | - `AddResponseHeaderFilter`: adds a random `X-Foo` header to the response 13 | - `ModifyResponseBodyFilter`: Adds a prefix to the response using `RequestContext.setResponseBody(String)`. Only runs if `service` query parameter is NOT set. 14 | - `ModifyResponseDataStreamFilter`: Adds a prefix to the response using `RequestContext.setResponseDataStream(InputStream)`. Only runs if `service` query parameter is set. 15 | - `PrefixRequestEntityFilter`: Adds a prefix to the request body by using a request wrapper and `RequestContext.setRequest()`. Only runs if `service` query parameter is set. 16 | - `QueryParamPortPreFilter`: sets the port of the `RequestContext.getRouteHost` to the value of the `port` query parameter. Only runs if `port` query parameter is set. 17 | - `QueryParamServiceIdPreFilter`: sets the `serviceId` to the value of the `service` query parameter. 18 | - `UppercaseRequestEntityFilter`: Upper cases the request body by setting `RequestContext.setRequest("requestEntity")`. Only runs if `service` query parameter is NOT set. 19 | 20 | ## Examples 21 | 22 | All examples use [HTTPie](https://httpie.org/)(A better curl replacement). 23 | 24 | ```bash 25 | $ http :8080/foo 26 | HTTP/1.1 200 27 | Content-Type: text/plain;charset=UTF-8 28 | Date: Wed, 22 Mar 2017 20:06:45 GMT 29 | Transfer-Encoding: chunked 30 | X-Application-Context: application 31 | X-Foo: 41e04412-84e8-48ac-8d71-cec209eda9ca 32 | 33 | Modified via setResponseBody(): foo from FooApplication$$EnhancerBySpringCGLIB$$82229332 34 | ``` 35 | 36 | The application is routed to `FooApplication` because the response contains `foo from FooApplication`. 37 | 38 | The `AddResponseHeaderFilter` ran because of the `X-Foo: 41e04412-84e8-48ac-8d71-cec209eda9ca` header was added to the response. 39 | 40 | The `ModifyResponseBodyFilter` was run because the body was prefixed with `Modified via setResponseBody():`. 41 | 42 | ```bash 43 | $ http ":8080/foo?service=bar" 44 | HTTP/1.1 200 45 | Content-Type: text/plain;charset=UTF-8 46 | Date: Wed, 22 Mar 2017 20:09:23 GMT 47 | Transfer-Encoding: chunked 48 | X-Application-Context: application 49 | X-Foo: 9dc2e5fa-a43f-445d-a289-d3e62319413a 50 | 51 | Modified via setResponseDataStream(): bar from BarApplication$$EnhancerBySpringCGLIB$$a78c1598 52 | 53 | ``` 54 | 55 | The application is routed to `BarApplication` because the response contains `bar from BarApplication`. 56 | 57 | The `AddResponseHeaderFilter` ran because of the `X-Foo: 9dc2e5fa-a43f-445d-a289-d3e62319413a` header was added to the response. 58 | 59 | The `ModifyResponseDataStreamFilter` was run because the body was prefixed with `Modified via setResponseDataStream():`. 60 | 61 | ```bash 62 | 63 | $ echo -n "hello" | http POST :8080/foo 64 | HTTP/1.1 200 65 | Content-Type: application/json;charset=UTF-8 66 | Date: Wed, 22 Mar 2017 21:48:46 GMT 67 | Transfer-Encoding: chunked 68 | X-Application-Context: application 69 | X-Foo: 69866ea1-db9a-4275-a8f1-5e20d87e5065 70 | 71 | Modified via setResponseBody(): foo recieved: HELLO 72 | ``` 73 | 74 | `UppercaseRequestEntityFilter` was run because `foo recieved: HELLO` was in the response body. 75 | 76 | ```bash 77 | 78 | $ echo -n "hello" | http POST ":8080/foo?service=bar" 79 | HTTP/1.1 200 80 | Content-Type: application/json;charset=UTF-8 81 | Date: Wed, 22 Mar 2017 21:49:02 GMT 82 | Transfer-Encoding: chunked 83 | X-Application-Context: application 84 | X-Foo: 97aebe27-6845-4dc3-9ef6-80ccdf14059d 85 | 86 | Modified via setResponseDataStream(): bar recieved: request body modified via request wrapper: hello 87 | ``` 88 | 89 | `PrefixRequestEntityFilter` was run because `foo recieved: HELLO` was in the response body. 90 | 91 | ```bash 92 | $ http :8080/hello 93 | HTTP/1.1 500 94 | Connection: close 95 | Content-Type: application/json;charset=UTF-8 96 | Date: Fri, 24 Mar 2017 21:05:04 GMT 97 | Transfer-Encoding: chunked 98 | X-Application-Context: application 99 | 100 | { 101 | "error": "Internal Server Error", 102 | "exception": "org.apache.http.conn.HttpHostConnectException", 103 | "message": "Connect to localhost:80 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1, localhost/fe80:0:0:0:0:0:0:1%1] failed: Connection refused", 104 | "status": 500, 105 | "timestamp": 1490389504014 106 | } 107 | ``` 108 | Uses a bad port, `QueryParamPortPreFilter` not run. 109 | 110 | ```bash 111 | $ http ":8080/hello?port=9080" 112 | HTTP/1.1 200 113 | Content-Type: text/plain;charset=UTF-8 114 | Date: Fri, 24 Mar 2017 21:07:07 GMT 115 | Transfer-Encoding: chunked 116 | X-Application-Context: application 117 | X-Foo: 50774952-b947-47cd-902b-2889d02feece 118 | 119 | Modified via setResponseBody(): hello from FooApplication$$EnhancerBySpringCGLIB$$82229332 120 | 121 | ``` 122 | 123 | `QueryParamPortPreFilter` was run because response contains `hello from FooApplication`. -------------------------------------------------------------------------------- /mvnw: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | # ---------------------------------------------------------------------------- 3 | # Licensed to the Apache Software Foundation (ASF) under one 4 | # or more contributor license agreements. See the NOTICE file 5 | # distributed with this work for additional information 6 | # regarding copyright ownership. The ASF licenses this file 7 | # to you under the Apache License, Version 2.0 (the 8 | # "License"); you may not use this file except in compliance 9 | # with the License. You may obtain a copy of the License at 10 | # 11 | # http://www.apache.org/licenses/LICENSE-2.0 12 | # 13 | # Unless required by applicable law or agreed to in writing, 14 | # software distributed under the License is distributed on an 15 | # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 | # KIND, either express or implied. See the License for the 17 | # specific language governing permissions and limitations 18 | # under the License. 19 | # ---------------------------------------------------------------------------- 20 | 21 | # ---------------------------------------------------------------------------- 22 | # Maven2 Start Up Batch script 23 | # 24 | # Required ENV vars: 25 | # ------------------ 26 | # JAVA_HOME - location of a JDK home dir 27 | # 28 | # Optional ENV vars 29 | # ----------------- 30 | # M2_HOME - location of maven2's installed home dir 31 | # MAVEN_OPTS - parameters passed to the Java VM when running Maven 32 | # e.g. to debug Maven itself, use 33 | # set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 34 | # MAVEN_SKIP_RC - flag to disable loading of mavenrc files 35 | # ---------------------------------------------------------------------------- 36 | 37 | if [ -z "$MAVEN_SKIP_RC" ] ; then 38 | 39 | if [ -f /etc/mavenrc ] ; then 40 | . /etc/mavenrc 41 | fi 42 | 43 | if [ -f "$HOME/.mavenrc" ] ; then 44 | . "$HOME/.mavenrc" 45 | fi 46 | 47 | fi 48 | 49 | # OS specific support. $var _must_ be set to either true or false. 50 | cygwin=false; 51 | darwin=false; 52 | mingw=false 53 | case "`uname`" in 54 | CYGWIN*) cygwin=true ;; 55 | MINGW*) mingw=true;; 56 | Darwin*) darwin=true 57 | # 58 | # Look for the Apple JDKs first to preserve the existing behaviour, and then look 59 | # for the new JDKs provided by Oracle. 60 | # 61 | if [ -z "$JAVA_HOME" ] && [ -L /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK ] ; then 62 | # 63 | # Apple JDKs 64 | # 65 | export JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home 66 | fi 67 | 68 | if [ -z "$JAVA_HOME" ] && [ -L /System/Library/Java/JavaVirtualMachines/CurrentJDK ] ; then 69 | # 70 | # Apple JDKs 71 | # 72 | export JAVA_HOME=/System/Library/Java/JavaVirtualMachines/CurrentJDK/Contents/Home 73 | fi 74 | 75 | if [ -z "$JAVA_HOME" ] && [ -L "/Library/Java/JavaVirtualMachines/CurrentJDK" ] ; then 76 | # 77 | # Oracle JDKs 78 | # 79 | export JAVA_HOME=/Library/Java/JavaVirtualMachines/CurrentJDK/Contents/Home 80 | fi 81 | 82 | if [ -z "$JAVA_HOME" ] && [ -x "/usr/libexec/java_home" ]; then 83 | # 84 | # Apple JDKs 85 | # 86 | export JAVA_HOME=`/usr/libexec/java_home` 87 | fi 88 | ;; 89 | esac 90 | 91 | if [ -z "$JAVA_HOME" ] ; then 92 | if [ -r /etc/gentoo-release ] ; then 93 | JAVA_HOME=`java-config --jre-home` 94 | fi 95 | fi 96 | 97 | if [ -z "$M2_HOME" ] ; then 98 | ## resolve links - $0 may be a link to maven's home 99 | PRG="$0" 100 | 101 | # need this for relative symlinks 102 | while [ -h "$PRG" ] ; do 103 | ls=`ls -ld "$PRG"` 104 | link=`expr "$ls" : '.*-> \(.*\)$'` 105 | if expr "$link" : '/.*' > /dev/null; then 106 | PRG="$link" 107 | else 108 | PRG="`dirname "$PRG"`/$link" 109 | fi 110 | done 111 | 112 | saveddir=`pwd` 113 | 114 | M2_HOME=`dirname "$PRG"`/.. 115 | 116 | # make it fully qualified 117 | M2_HOME=`cd "$M2_HOME" && pwd` 118 | 119 | cd "$saveddir" 120 | # echo Using m2 at $M2_HOME 121 | fi 122 | 123 | # For Cygwin, ensure paths are in UNIX format before anything is touched 124 | if $cygwin ; then 125 | [ -n "$M2_HOME" ] && 126 | M2_HOME=`cygpath --unix "$M2_HOME"` 127 | [ -n "$JAVA_HOME" ] && 128 | JAVA_HOME=`cygpath --unix "$JAVA_HOME"` 129 | [ -n "$CLASSPATH" ] && 130 | CLASSPATH=`cygpath --path --unix "$CLASSPATH"` 131 | fi 132 | 133 | # For Migwn, ensure paths are in UNIX format before anything is touched 134 | if $mingw ; then 135 | [ -n "$M2_HOME" ] && 136 | M2_HOME="`(cd "$M2_HOME"; pwd)`" 137 | [ -n "$JAVA_HOME" ] && 138 | JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" 139 | # TODO classpath? 140 | fi 141 | 142 | if [ -z "$JAVA_HOME" ]; then 143 | javaExecutable="`which javac`" 144 | if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then 145 | # readlink(1) is not available as standard on Solaris 10. 146 | readLink=`which readlink` 147 | if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then 148 | if $darwin ; then 149 | javaHome="`dirname \"$javaExecutable\"`" 150 | javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" 151 | else 152 | javaExecutable="`readlink -f \"$javaExecutable\"`" 153 | fi 154 | javaHome="`dirname \"$javaExecutable\"`" 155 | javaHome=`expr "$javaHome" : '\(.*\)/bin'` 156 | JAVA_HOME="$javaHome" 157 | export JAVA_HOME 158 | fi 159 | fi 160 | fi 161 | 162 | if [ -z "$JAVACMD" ] ; then 163 | if [ -n "$JAVA_HOME" ] ; then 164 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 165 | # IBM's JDK on AIX uses strange locations for the executables 166 | JAVACMD="$JAVA_HOME/jre/sh/java" 167 | else 168 | JAVACMD="$JAVA_HOME/bin/java" 169 | fi 170 | else 171 | JAVACMD="`which java`" 172 | fi 173 | fi 174 | 175 | if [ ! -x "$JAVACMD" ] ; then 176 | echo "Error: JAVA_HOME is not defined correctly." >&2 177 | echo " We cannot execute $JAVACMD" >&2 178 | exit 1 179 | fi 180 | 181 | if [ -z "$JAVA_HOME" ] ; then 182 | echo "Warning: JAVA_HOME environment variable is not set." 183 | fi 184 | 185 | CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher 186 | 187 | # For Cygwin, switch paths to Windows format before running java 188 | if $cygwin; then 189 | [ -n "$M2_HOME" ] && 190 | M2_HOME=`cygpath --path --windows "$M2_HOME"` 191 | [ -n "$JAVA_HOME" ] && 192 | JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` 193 | [ -n "$CLASSPATH" ] && 194 | CLASSPATH=`cygpath --path --windows "$CLASSPATH"` 195 | fi 196 | 197 | # traverses directory structure from process work directory to filesystem root 198 | # first directory with .mvn subdirectory is considered project base directory 199 | find_maven_basedir() { 200 | local basedir=$(pwd) 201 | local wdir=$(pwd) 202 | while [ "$wdir" != '/' ] ; do 203 | if [ -d "$wdir"/.mvn ] ; then 204 | basedir=$wdir 205 | break 206 | fi 207 | wdir=$(cd "$wdir/.."; pwd) 208 | done 209 | echo "${basedir}" 210 | } 211 | 212 | # concatenates all lines of a file 213 | concat_lines() { 214 | if [ -f "$1" ]; then 215 | echo "$(tr -s '\n' ' ' < "$1")" 216 | fi 217 | } 218 | 219 | export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-$(find_maven_basedir)} 220 | MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" 221 | 222 | # Provide a "standardized" way to retrieve the CLI args that will 223 | # work with both Windows and non-Windows executions. 224 | MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@" 225 | export MAVEN_CMD_LINE_ARGS 226 | 227 | WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain 228 | 229 | exec "$JAVACMD" \ 230 | $MAVEN_OPTS \ 231 | -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ 232 | "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ 233 | ${WRAPPER_LAUNCHER} "$@" 234 | -------------------------------------------------------------------------------- /mvnw.cmd: -------------------------------------------------------------------------------- 1 | @REM ---------------------------------------------------------------------------- 2 | @REM Licensed to the Apache Software Foundation (ASF) under one 3 | @REM or more contributor license agreements. See the NOTICE file 4 | @REM distributed with this work for additional information 5 | @REM regarding copyright ownership. The ASF licenses this file 6 | @REM to you under the Apache License, Version 2.0 (the 7 | @REM "License"); you may not use this file except in compliance 8 | @REM with the License. You may obtain a copy of the License at 9 | @REM 10 | @REM http://www.apache.org/licenses/LICENSE-2.0 11 | @REM 12 | @REM Unless required by applicable law or agreed to in writing, 13 | @REM software distributed under the License is distributed on an 14 | @REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 | @REM KIND, either express or implied. See the License for the 16 | @REM specific language governing permissions and limitations 17 | @REM under the License. 18 | @REM ---------------------------------------------------------------------------- 19 | 20 | @REM ---------------------------------------------------------------------------- 21 | @REM Maven2 Start Up Batch script 22 | @REM 23 | @REM Required ENV vars: 24 | @REM JAVA_HOME - location of a JDK home dir 25 | @REM 26 | @REM Optional ENV vars 27 | @REM M2_HOME - location of maven2's installed home dir 28 | @REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands 29 | @REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending 30 | @REM MAVEN_OPTS - parameters passed to the Java VM when running Maven 31 | @REM e.g. to debug Maven itself, use 32 | @REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 33 | @REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files 34 | @REM ---------------------------------------------------------------------------- 35 | 36 | @REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' 37 | @echo off 38 | @REM enable echoing my setting MAVEN_BATCH_ECHO to 'on' 39 | @if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% 40 | 41 | @REM set %HOME% to equivalent of $HOME 42 | if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") 43 | 44 | @REM Execute a user defined script before this one 45 | if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre 46 | @REM check for pre script, once with legacy .bat ending and once with .cmd ending 47 | if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat" 48 | if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd" 49 | :skipRcPre 50 | 51 | @setlocal 52 | 53 | set ERROR_CODE=0 54 | 55 | @REM To isolate internal variables from possible post scripts, we use another setlocal 56 | @setlocal 57 | 58 | @REM ==== START VALIDATION ==== 59 | if not "%JAVA_HOME%" == "" goto OkJHome 60 | 61 | echo. 62 | echo Error: JAVA_HOME not found in your environment. >&2 63 | echo Please set the JAVA_HOME variable in your environment to match the >&2 64 | echo location of your Java installation. >&2 65 | echo. 66 | goto error 67 | 68 | :OkJHome 69 | if exist "%JAVA_HOME%\bin\java.exe" goto init 70 | 71 | echo. 72 | echo Error: JAVA_HOME is set to an invalid directory. >&2 73 | echo JAVA_HOME = "%JAVA_HOME%" >&2 74 | echo Please set the JAVA_HOME variable in your environment to match the >&2 75 | echo location of your Java installation. >&2 76 | echo. 77 | goto error 78 | 79 | @REM ==== END VALIDATION ==== 80 | 81 | :init 82 | 83 | set MAVEN_CMD_LINE_ARGS=%* 84 | 85 | @REM Find the project base dir, i.e. the directory that contains the folder ".mvn". 86 | @REM Fallback to current working directory if not found. 87 | 88 | set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% 89 | IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir 90 | 91 | set EXEC_DIR=%CD% 92 | set WDIR=%EXEC_DIR% 93 | :findBaseDir 94 | IF EXIST "%WDIR%"\.mvn goto baseDirFound 95 | cd .. 96 | IF "%WDIR%"=="%CD%" goto baseDirNotFound 97 | set WDIR=%CD% 98 | goto findBaseDir 99 | 100 | :baseDirFound 101 | set MAVEN_PROJECTBASEDIR=%WDIR% 102 | cd "%EXEC_DIR%" 103 | goto endDetectBaseDir 104 | 105 | :baseDirNotFound 106 | set MAVEN_PROJECTBASEDIR=%EXEC_DIR% 107 | cd "%EXEC_DIR%" 108 | 109 | :endDetectBaseDir 110 | 111 | IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig 112 | 113 | @setlocal EnableExtensions EnableDelayedExpansion 114 | for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a 115 | @endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% 116 | 117 | :endReadAdditionalConfig 118 | 119 | SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" 120 | 121 | set WRAPPER_JAR="".\.mvn\wrapper\maven-wrapper.jar"" 122 | set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain 123 | 124 | %MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CMD_LINE_ARGS% 125 | if ERRORLEVEL 1 goto error 126 | goto end 127 | 128 | :error 129 | set ERROR_CODE=1 130 | 131 | :end 132 | @endlocal & set ERROR_CODE=%ERROR_CODE% 133 | 134 | if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost 135 | @REM check for post script, once with legacy .bat ending and once with .cmd ending 136 | if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat" 137 | if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd" 138 | :skipRcPost 139 | 140 | @REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' 141 | if "%MAVEN_BATCH_PAUSE%" == "on" pause 142 | 143 | if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE% 144 | 145 | exit /B %ERROR_CODE% -------------------------------------------------------------------------------- /pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 4.0.0 5 | 6 | org.springframework.cloud 7 | samplezuulfilters 8 | 0.0.1-SNAPSHOT 9 | jar 10 | 11 | samplezuulfilters 12 | Demo project for Spring Boot 13 | 14 | 15 | org.springframework.boot 16 | spring-boot-starter-parent 17 | 1.5.10.RELEASE 18 | 19 | 20 | 21 | 22 | UTF-8 23 | UTF-8 24 | 1.8 25 | 26 | 27 | 28 | 29 | org.springframework.boot 30 | spring-boot-starter-actuator 31 | 32 | 33 | org.springframework.cloud 34 | spring-cloud-starter-netflix-zuul 35 | 36 | 37 | org.springframework.boot 38 | spring-boot-starter-web 39 | 40 | 41 | 42 | org.springframework.boot 43 | spring-boot-starter-test 44 | test 45 | 46 | 47 | 48 | 49 | 50 | 51 | org.springframework.cloud 52 | spring-cloud-dependencies 53 | Edgware.SR3 54 | pom 55 | import 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | org.springframework.boot 64 | spring-boot-maven-plugin 65 | 66 | 67 | 68 | 69 | 70 | 71 | spring-milestones 72 | Spring Milestones 73 | https://repo.spring.io/milestone 74 | 75 | false 76 | 77 | 78 | 79 | 80 | 81 | 82 | -------------------------------------------------------------------------------- /src/main/java/org/springframework/cloud/samplebackendbar/BarApplication.java: -------------------------------------------------------------------------------- 1 | package org.springframework.cloud.samplebackendbar; 2 | 3 | import org.springframework.boot.autoconfigure.SpringBootApplication; 4 | import org.springframework.boot.builder.SpringApplicationBuilder; 5 | import org.springframework.web.bind.annotation.RequestBody; 6 | import org.springframework.web.bind.annotation.RequestMapping; 7 | import org.springframework.web.bind.annotation.RestController; 8 | 9 | import static org.springframework.web.bind.annotation.RequestMethod.GET; 10 | import static org.springframework.web.bind.annotation.RequestMethod.POST; 11 | 12 | /** 13 | * @author Spencer Gibb 14 | */ 15 | @SpringBootApplication 16 | @RestController 17 | public class BarApplication { 18 | 19 | @RequestMapping(value = "/foo", method = GET) 20 | public String foo() { 21 | return "bar from " + getClass().getSimpleName(); 22 | } 23 | 24 | @RequestMapping(value = "/foo", method = POST) 25 | public String foo(@RequestBody String body) { 26 | return "bar recieved: " + body; 27 | } 28 | 29 | public static void main(String[] args) { 30 | new SpringApplicationBuilder(BarApplication.class) 31 | .properties("server.port=7080", "spring.application.name=bar") 32 | .run(args); 33 | } 34 | } 35 | -------------------------------------------------------------------------------- /src/main/java/org/springframework/cloud/samplebackendfoo/FooApplication.java: -------------------------------------------------------------------------------- 1 | package org.springframework.cloud.samplebackendfoo; 2 | 3 | import org.springframework.boot.autoconfigure.SpringBootApplication; 4 | import org.springframework.boot.builder.SpringApplicationBuilder; 5 | import org.springframework.web.bind.annotation.RequestBody; 6 | import org.springframework.web.bind.annotation.RequestMapping; 7 | import org.springframework.web.bind.annotation.RestController; 8 | 9 | import static org.springframework.web.bind.annotation.RequestMethod.GET; 10 | import static org.springframework.web.bind.annotation.RequestMethod.POST; 11 | 12 | /** 13 | * @author Spencer Gibb 14 | */ 15 | @SpringBootApplication 16 | @RestController 17 | public class FooApplication { 18 | 19 | @RequestMapping(value = "/foo", method = GET) 20 | public String foo() { 21 | return "foo from " + getClass().getSimpleName(); 22 | } 23 | 24 | @RequestMapping(value = "/foo", method = POST) 25 | public String foo(@RequestBody String body) { 26 | return "foo recieved: " + body; 27 | } 28 | 29 | @RequestMapping(value = "/hello", method = GET) 30 | public String hello() { 31 | return "hello from " + getClass().getSimpleName(); 32 | } 33 | 34 | public static void main(String[] args) { 35 | new SpringApplicationBuilder(FooApplication.class) 36 | .properties("server.port=9080", "spring.application.name=foo") 37 | .run(args); 38 | } 39 | } 40 | -------------------------------------------------------------------------------- /src/main/java/org/springframework/cloud/samplezuulfilters/AddResponseHeaderFilter.java: -------------------------------------------------------------------------------- 1 | package org.springframework.cloud.samplezuulfilters; 2 | 3 | import com.netflix.zuul.ZuulFilter; 4 | import com.netflix.zuul.context.RequestContext; 5 | 6 | import javax.servlet.http.HttpServletResponse; 7 | import java.util.UUID; 8 | 9 | /** 10 | * @author Spencer Gibb 11 | */ 12 | public class AddResponseHeaderFilter extends ZuulFilter { 13 | public String filterType() { 14 | return "post"; 15 | } 16 | 17 | public int filterOrder() { 18 | return 999; 19 | } 20 | 21 | public boolean shouldFilter() { 22 | return true; 23 | } 24 | 25 | public Object run() { 26 | RequestContext context = RequestContext.getCurrentContext(); 27 | HttpServletResponse servletResponse = context.getResponse(); 28 | servletResponse.addHeader("X-Foo", 29 | UUID.randomUUID().toString()); 30 | return null; 31 | } 32 | } 33 | -------------------------------------------------------------------------------- /src/main/java/org/springframework/cloud/samplezuulfilters/ModifyResponseBodyFilter.java: -------------------------------------------------------------------------------- 1 | package org.springframework.cloud.samplezuulfilters; 2 | 3 | import java.io.IOException; 4 | import java.io.InputStream; 5 | import java.nio.charset.Charset; 6 | 7 | import org.springframework.util.StreamUtils; 8 | 9 | import com.netflix.zuul.ZuulFilter; 10 | import com.netflix.zuul.context.RequestContext; 11 | 12 | import static com.netflix.zuul.context.RequestContext.getCurrentContext; 13 | import static org.springframework.util.ReflectionUtils.rethrowRuntimeException; 14 | 15 | /** 16 | * @author Spencer Gibb 17 | */ 18 | public class ModifyResponseBodyFilter extends ZuulFilter { 19 | public String filterType() { 20 | return "post"; 21 | } 22 | 23 | public int filterOrder() { 24 | return 999; 25 | } 26 | 27 | public boolean shouldFilter() { 28 | RequestContext context = getCurrentContext(); 29 | return context.getRequest().getParameter("service") == null; 30 | } 31 | 32 | public Object run() { 33 | try { 34 | RequestContext context = getCurrentContext(); 35 | InputStream stream = context.getResponseDataStream(); 36 | String body = StreamUtils.copyToString(stream, Charset.forName("UTF-8")); 37 | context.setResponseBody("Modified via setResponseBody(): "+body); 38 | } 39 | catch (IOException e) { 40 | rethrowRuntimeException(e); 41 | } 42 | return null; 43 | } 44 | } 45 | -------------------------------------------------------------------------------- /src/main/java/org/springframework/cloud/samplezuulfilters/ModifyResponseDataStreamFilter.java: -------------------------------------------------------------------------------- 1 | package org.springframework.cloud.samplezuulfilters; 2 | 3 | import java.io.ByteArrayInputStream; 4 | import java.io.IOException; 5 | import java.io.InputStream; 6 | import java.nio.charset.Charset; 7 | 8 | import org.springframework.util.StreamUtils; 9 | 10 | import com.netflix.zuul.ZuulFilter; 11 | import com.netflix.zuul.context.RequestContext; 12 | 13 | import static com.netflix.zuul.context.RequestContext.getCurrentContext; 14 | import static org.springframework.util.ReflectionUtils.rethrowRuntimeException; 15 | 16 | /** 17 | * @author Spencer Gibb 18 | */ 19 | public class ModifyResponseDataStreamFilter extends ZuulFilter { 20 | public String filterType() { 21 | return "post"; 22 | } 23 | 24 | public int filterOrder() { 25 | return 999; 26 | } 27 | 28 | public boolean shouldFilter() { 29 | RequestContext context = getCurrentContext(); 30 | return context.getRequest().getParameter("service") != null; 31 | } 32 | 33 | public Object run() { 34 | try { 35 | RequestContext context = getCurrentContext(); 36 | InputStream stream = context.getResponseDataStream(); 37 | String body = StreamUtils.copyToString(stream, Charset.forName("UTF-8")); 38 | body = "Modified via setResponseDataStream(): " + body; 39 | context.setResponseDataStream(new ByteArrayInputStream(body.getBytes("UTF-8"))); 40 | } 41 | catch (IOException e) { 42 | rethrowRuntimeException(e); 43 | } 44 | return null; 45 | } 46 | } 47 | -------------------------------------------------------------------------------- /src/main/java/org/springframework/cloud/samplezuulfilters/PrefixRequestEntityFilter.java: -------------------------------------------------------------------------------- 1 | package org.springframework.cloud.samplezuulfilters; 2 | 3 | import java.io.IOException; 4 | import java.io.InputStream; 5 | import java.nio.charset.Charset; 6 | 7 | import javax.servlet.ServletInputStream; 8 | import javax.servlet.http.HttpServletRequestWrapper; 9 | 10 | import org.springframework.util.StreamUtils; 11 | 12 | import com.netflix.zuul.ZuulFilter; 13 | import com.netflix.zuul.context.RequestContext; 14 | import com.netflix.zuul.http.ServletInputStreamWrapper; 15 | 16 | import static com.netflix.zuul.context.RequestContext.getCurrentContext; 17 | import static org.springframework.util.ReflectionUtils.rethrowRuntimeException; 18 | 19 | /** 20 | * @author Spencer Gibb 21 | */ 22 | public class PrefixRequestEntityFilter extends ZuulFilter { 23 | public String filterType() { 24 | return "pre"; 25 | } 26 | 27 | public int filterOrder() { 28 | return 6; 29 | } 30 | 31 | public boolean shouldFilter() { 32 | RequestContext context = getCurrentContext(); 33 | return context.getRequest().getParameter("service") != null; 34 | } 35 | 36 | public Object run() { 37 | try { 38 | RequestContext context = getCurrentContext(); 39 | InputStream in = (InputStream) context.get("requestEntity"); 40 | if (in == null) { 41 | in = context.getRequest().getInputStream(); 42 | } 43 | String body = StreamUtils.copyToString(in, Charset.forName("UTF-8")); 44 | body = "request body modified via request wrapper: "+ body; 45 | byte[] bytes = body.getBytes("UTF-8"); 46 | context.setRequest(new HttpServletRequestWrapper(getCurrentContext().getRequest()) { 47 | @Override 48 | public ServletInputStream getInputStream() throws IOException { 49 | return new ServletInputStreamWrapper(bytes); 50 | } 51 | 52 | @Override 53 | public int getContentLength() { 54 | return bytes.length; 55 | } 56 | 57 | @Override 58 | public long getContentLengthLong() { 59 | return bytes.length; 60 | } 61 | }); 62 | } 63 | catch (IOException e) { 64 | rethrowRuntimeException(e); 65 | } 66 | return null; 67 | } 68 | } 69 | -------------------------------------------------------------------------------- /src/main/java/org/springframework/cloud/samplezuulfilters/QueryParamPortPreFilter.java: -------------------------------------------------------------------------------- 1 | package org.springframework.cloud.samplezuulfilters; 2 | 3 | import javax.servlet.http.HttpServletRequest; 4 | 5 | import com.netflix.zuul.ZuulFilter; 6 | import com.netflix.zuul.context.RequestContext; 7 | import org.springframework.util.ReflectionUtils; 8 | import org.springframework.web.util.UriComponentsBuilder; 9 | 10 | import java.net.MalformedURLException; 11 | import java.net.URISyntaxException; 12 | import java.net.URL; 13 | 14 | import static com.netflix.zuul.context.RequestContext.getCurrentContext; 15 | 16 | /** 17 | * @author Spencer Gibb 18 | */ 19 | public class QueryParamPortPreFilter extends ZuulFilter { 20 | 21 | public int filterOrder() { 22 | // run after PreDecorationFilter 23 | return 5 + 1; 24 | } 25 | 26 | public String filterType() { 27 | return "pre"; 28 | } 29 | 30 | @Override 31 | public boolean shouldFilter() { 32 | RequestContext ctx = getCurrentContext(); 33 | return ctx.getRequest().getParameter("port") != null; 34 | } 35 | 36 | public Object run() { 37 | RequestContext ctx = getCurrentContext(); 38 | HttpServletRequest request = ctx.getRequest(); 39 | // put the serviceId in `RequestContext` 40 | String port = request.getParameter("port"); 41 | try { 42 | URL url = UriComponentsBuilder.fromUri(ctx.getRouteHost().toURI()) 43 | .port(new Integer(port)) 44 | .build().toUri().toURL(); 45 | ctx.setRouteHost(url); 46 | } catch (Exception e) { 47 | ReflectionUtils.rethrowRuntimeException(e); 48 | } 49 | return null; 50 | } 51 | } 52 | -------------------------------------------------------------------------------- /src/main/java/org/springframework/cloud/samplezuulfilters/QueryParamServiceIdPreFilter.java: -------------------------------------------------------------------------------- 1 | package org.springframework.cloud.samplezuulfilters; 2 | 3 | import javax.servlet.http.HttpServletRequest; 4 | 5 | import com.netflix.zuul.ZuulFilter; 6 | import com.netflix.zuul.context.RequestContext; 7 | 8 | import static com.netflix.zuul.context.RequestContext.getCurrentContext; 9 | 10 | /** 11 | * @author Spencer Gibb 12 | */ 13 | public class QueryParamServiceIdPreFilter extends ZuulFilter { 14 | 15 | public int filterOrder() { 16 | // run before PreDecorationFilter 17 | return 5 - 1; 18 | } 19 | 20 | public String filterType() { 21 | return "pre"; 22 | } 23 | 24 | @Override 25 | public boolean shouldFilter() { 26 | RequestContext ctx = getCurrentContext(); 27 | return ctx.getRequest().getParameter("service") != null; 28 | } 29 | 30 | public Object run() { 31 | RequestContext ctx = getCurrentContext(); 32 | HttpServletRequest request = ctx.getRequest(); 33 | // put the serviceId in `RequestContext` 34 | ctx.put("serviceId", request.getParameter("service")); 35 | return null; 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /src/main/java/org/springframework/cloud/samplezuulfilters/UppercaseRequestEntityFilter.java: -------------------------------------------------------------------------------- 1 | package org.springframework.cloud.samplezuulfilters; 2 | 3 | import java.io.ByteArrayInputStream; 4 | import java.io.IOException; 5 | import java.io.InputStream; 6 | import java.nio.charset.Charset; 7 | 8 | import com.netflix.zuul.ZuulFilter; 9 | import org.springframework.util.StreamUtils; 10 | 11 | import com.netflix.zuul.context.RequestContext; 12 | 13 | import static com.netflix.zuul.context.RequestContext.getCurrentContext; 14 | import static org.springframework.util.ReflectionUtils.rethrowRuntimeException; 15 | 16 | /** 17 | * @author Spencer Gibb 18 | */ 19 | public class UppercaseRequestEntityFilter extends ZuulFilter { 20 | public String filterType() { 21 | return "pre"; 22 | } 23 | 24 | public int filterOrder() { 25 | return 6; 26 | } 27 | 28 | public boolean shouldFilter() { 29 | RequestContext context = getCurrentContext(); 30 | return context.getRequest().getParameter("service") == null; 31 | } 32 | 33 | public Object run() { 34 | try { 35 | RequestContext context = getCurrentContext(); 36 | InputStream in = (InputStream) context.get("requestEntity"); 37 | if (in == null) { 38 | in = context.getRequest().getInputStream(); 39 | } 40 | String body = StreamUtils.copyToString(in, Charset.forName("UTF-8")); 41 | // body = "request body modified via set('requestEntity'): "+ body; 42 | body = body.toUpperCase(); 43 | context.set("requestEntity", new ByteArrayInputStream(body.getBytes("UTF-8"))); 44 | } 45 | catch (IOException e) { 46 | rethrowRuntimeException(e); 47 | } 48 | return null; 49 | } 50 | } 51 | -------------------------------------------------------------------------------- /src/main/java/org/springframework/cloud/samplezuulfilters/ZuulGatewayApplication.java: -------------------------------------------------------------------------------- 1 | package org.springframework.cloud.samplezuulfilters; 2 | 3 | import org.springframework.boot.SpringApplication; 4 | import org.springframework.boot.autoconfigure.SpringBootApplication; 5 | import org.springframework.cloud.netflix.zuul.EnableZuulProxy; 6 | import org.springframework.context.annotation.Bean; 7 | 8 | @EnableZuulProxy 9 | @SpringBootApplication 10 | public class ZuulGatewayApplication { 11 | 12 | @Bean 13 | public AddResponseHeaderFilter addResponseHeaderFilter() { 14 | return new AddResponseHeaderFilter(); 15 | } 16 | 17 | @Bean 18 | public ModifyResponseBodyFilter modifyResponseHeaderFilter() { 19 | return new ModifyResponseBodyFilter(); 20 | } 21 | 22 | @Bean 23 | public ModifyResponseDataStreamFilter modifyResponseDataStreamFilter() { 24 | return new ModifyResponseDataStreamFilter(); 25 | } 26 | 27 | @Bean 28 | public PrefixRequestEntityFilter prefixRequestEntityFilter() { 29 | return new PrefixRequestEntityFilter(); 30 | } 31 | 32 | @Bean 33 | public QueryParamPortPreFilter queryParamPortPreFilter() { 34 | return new QueryParamPortPreFilter(); 35 | } 36 | 37 | @Bean 38 | public QueryParamServiceIdPreFilter queryParamServiceIdPreFilter() { 39 | return new QueryParamServiceIdPreFilter(); 40 | } 41 | 42 | @Bean 43 | public UppercaseRequestEntityFilter modifyRequestEntityFilter() { 44 | return new UppercaseRequestEntityFilter(); 45 | } 46 | 47 | public static void main(String[] args) { 48 | SpringApplication.run(ZuulGatewayApplication.class, args); 49 | } 50 | } 51 | -------------------------------------------------------------------------------- /src/main/resources/application.yml: -------------------------------------------------------------------------------- 1 | zuul: 2 | routes: 3 | bar: 4 | serviceId: foo 5 | path: /foo 6 | stripPrefix: true 7 | portchange: 8 | path: /hello 9 | stripPrefix: true 10 | url: http://localhost:80 11 | 12 | foo: 13 | ribbon: 14 | listOfServers: localhost:9080 15 | 16 | bar: 17 | ribbon: 18 | listOfServers: localhost:7080 19 | -------------------------------------------------------------------------------- /src/test/java/org/springframework/cloud/samplezuulfilters/ZuulGatewayApplicationTests.java: -------------------------------------------------------------------------------- 1 | package org.springframework.cloud.samplezuulfilters; 2 | 3 | import org.junit.Test; 4 | import org.junit.runner.RunWith; 5 | import org.springframework.boot.test.context.SpringBootTest; 6 | import org.springframework.test.context.junit4.SpringRunner; 7 | 8 | @RunWith(SpringRunner.class) 9 | @SpringBootTest 10 | public class ZuulGatewayApplicationTests { 11 | 12 | @Test 13 | public void contextLoads() { 14 | } 15 | 16 | } 17 | --------------------------------------------------------------------------------