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dualspiral committed Feb 13, 2016
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9 changes: 9 additions & 0 deletions LICENCE.md
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The MIT License (MIT)

Copyright (c) 2016, Daniel Naylor

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
14 changes: 14 additions & 0 deletions README.md
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This plugin for BungeeCord allows those who run modded Sponge networks to run IP forwarding with their forge mods.

###How to use
Install the plugin (found on the releases page) into the BungeeCord plugin folder. Make sure the Bungee and Sponge servers
have IP Forwarding turned on.

That's it. No plugin configuration. Everything will just work.

###Compiling
Because "bungeecord-proxy" doesn't seem to be on the Sonatype OSS repo, you need to download that yourself, or find a repo
that does use it.

###Licence
MIT.
52 changes: 52 additions & 0 deletions build.gradle
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group 'uk.co.drnaylor.minecraft'
version '1.0'

apply plugin: 'java'

sourceCompatibility = 1.7

repositories {
jcenter()
maven {
name = 'oss-snapshots'
url = 'https://oss.sonatype.org/content/repositories/snapshots'
}
maven {
name = 'remove'
url = 'http://mvn.ryred.co/repository/snapshots/'
}
}

dependencies {
// WARNING - You will require this. I had it installed locally. It's not uploaded to Sonatype, unlike all other
// Bungee components.
compile group: 'net.md-5', name: 'bungeecord-proxy', version: '1.8-SNAPSHOT'
compile group: 'net.md-5', name: 'bungeecord-api', version: '1.8-SNAPSHOT'
testCompile group: 'junit', name: 'junit', version: '4.11'
}

/*
group 'uk.co.drnaylor.minecraft'
version '1.0'
apply plugin: 'java'
sourceCompatibility = 1.8
repositories {
jcenter()
maven {
name = 'oss-snapshots'
url = 'https://oss.sonatype.org/content/repositories/snapshots'
}
}
dependencies {
// WARNING - You will require this. I had it installed locally. It's not uploaded to Sonatype, unlike all other
// Bungee components.
compile group: 'net.md-5', name: 'bungeecord-proxy', version: '1.8-SNAPSHOT'
compile group: 'net.md-5', name: 'bungeecord-api', version: '1.8-SNAPSHOT'
testCompile group: 'junit', name: 'junit', version: '4.11'
}
*/
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6 changes: 6 additions & 0 deletions gradle/wrapper/gradle-wrapper.properties
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#Sat Feb 13 12:33:17 GMT 2016
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-2.5-all.zip
164 changes: 164 additions & 0 deletions gradlew
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#!/usr/bin/env bash

##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################

# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS=""

APP_NAME="Gradle"
APP_BASE_NAME=`basename "$0"`

# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"

warn ( ) {
echo "$*"
}

die ( ) {
echo
echo "$*"
echo
exit 1
}

# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
case "`uname`" in
CYGWIN* )
cygwin=true
;;
Darwin* )
darwin=true
;;
MINGW* )
msys=true
;;
esac

# For Cygwin, ensure paths are in UNIX format before anything is touched.
if $cygwin ; then
[ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
fi

# Attempt to set APP_HOME
# Resolve links: $0 may be a link
PRG="$0"
# Need this for relative symlinks.
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG=`dirname "$PRG"`"/$link"
fi
done
SAVED="`pwd`"
cd "`dirname \"$PRG\"`/" >&-
APP_HOME="`pwd -P`"
cd "$SAVED" >&-

CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar

# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi

# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
MAX_FD_LIMIT=`ulimit -H -n`
if [ $? -eq 0 ] ; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ] ; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi

# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi

# For Cygwin, switch paths to Windows format before running java
if $cygwin ; then
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`

# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
SEP=""
for dir in $ROOTDIRSRAW ; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ] ; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@" ; do
CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option

if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
else
eval `echo args$i`="\"$arg\""
fi
i=$((i+1))
done
case $i in
(0) set -- ;;
(1) set -- "$args0" ;;
(2) set -- "$args0" "$args1" ;;
(3) set -- "$args0" "$args1" "$args2" ;;
(4) set -- "$args0" "$args1" "$args2" "$args3" ;;
(5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
(6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
(7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
(8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
(9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi

# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
function splitJvmOpts() {
JVM_OPTS=("$@")
}
eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"

exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
90 changes: 90 additions & 0 deletions gradlew.bat
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@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################

@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal

@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS=

set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%

@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome

set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto init

echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.

goto fail

:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe

if exist "%JAVA_EXE%" goto init

echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.

goto fail

:init
@rem Get command-line arguments, handling Windowz variants

if not "%OS%" == "Windows_NT" goto win9xME_args
if "%@eval[2+2]" == "4" goto 4NT_args

:win9xME_args
@rem Slurp the command line arguments.
set CMD_LINE_ARGS=
set _SKIP=2

:win9xME_args_slurp
if "x%~1" == "x" goto execute

set CMD_LINE_ARGS=%*
goto execute

:4NT_args
@rem Get arguments from the 4NT Shell from JP Software
set CMD_LINE_ARGS=%$

:execute
@rem Setup the command line

set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar

@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%

:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd

:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1

:mainEnd
if "%OS%"=="Windows_NT" endlocal

:omega
2 changes: 2 additions & 0 deletions settings.gradle
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rootProject.name = 'forgeipforwarding'

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package uk.co.drnaylor.minecraft.bungeeforward;

import net.md_5.bungee.BungeeCord;
import net.md_5.bungee.UserConnection;
import net.md_5.bungee.api.connection.ProxiedPlayer;
import net.md_5.bungee.api.event.PostLoginEvent;
import net.md_5.bungee.api.plugin.Listener;
import net.md_5.bungee.api.plugin.Plugin;
import net.md_5.bungee.connection.LoginResult;
import net.md_5.bungee.event.EventHandler;

import java.util.Arrays;

public class ForgeIPForwardingPlugin extends Plugin implements Listener {

@Override
public void onEnable() {
this.getLogger().info("Hi! We're adding in IP Forwarding support for SpongeForge servers for you now.");
this.getProxy().getPluginManager().registerListener(this, this);
}

// First point that the UserConnection object has been initialised, but before a server connection takes place.
@EventHandler
public void onPostLoginEvent(PostLoginEvent event) {
ProxiedPlayer pp = event.getPlayer();
if (pp.isForgeUser() && pp instanceof UserConnection) {
try {
init((UserConnection) pp);
} catch (Exception e) {
e.printStackTrace();
}
}
}

private void init(UserConnection conn) throws Exception {
// If we IP forward, add the a FML marker to the game profile.
if (BungeeCord.getInstance().config.isIpForward()) {
// Get the user profile.
LoginResult profile = conn.getPendingConnection().getLoginProfile();

// Get the current properties and copy them into a slightly bigger array.
LoginResult.Property[] oldp = profile.getProperties();
LoginResult.Property[] newp = Arrays.copyOf(oldp, oldp.length + 2);

// Add a new profile property that specifies that this user is a Forge user.
newp[newp.length - 2] = new LoginResult.Property("forgeClient", "true", null);

// If we do not perform the replacement, then the IP Forwarding code in Spigot et. al. will try to split on this prematurely.
newp[newp.length - 1] = new LoginResult.Property("extraData", conn.getExtraDataInHandshake().replaceAll("\0", "\1"), "");

// Set the properties in the profile. All done.
profile.setProperties(newp);
}
}
}
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