Open-source multiplayer game server compatible with the RuneScape client https://www.openrs2.org/
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openrs2/game/src/main/kotlin/org/openrs2/game/net/crossdomain/CrossDomainChannelHandler.kt

46 lines
1.9 KiB

package org.openrs2.game.net.crossdomain
import io.netty.buffer.Unpooled
import io.netty.channel.ChannelFutureListener
import io.netty.channel.ChannelHandler
import io.netty.channel.ChannelHandlerContext
import io.netty.channel.SimpleChannelInboundHandler
import io.netty.handler.codec.http.HttpHeaderNames
import io.netty.handler.codec.http.HttpMethod
import io.netty.handler.codec.http.HttpRequest
import io.netty.handler.codec.http.HttpResponseStatus
import org.openrs2.game.net.http.Http
@ChannelHandler.Sharable
public object CrossDomainChannelHandler : SimpleChannelInboundHandler<HttpRequest>() {
private const val ENDPOINT = "/crossdomain.xml"
private val POLICY = """
<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM "http://www.adobe.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
<site-control permitted-cross-domain-policies="master-only" />
<allow-access-from domain="*" />
</cross-domain-policy>
""".trimIndent().plus("\n").toByteArray(Charsets.UTF_8)
override fun handlerAdded(ctx: ChannelHandlerContext) {
ctx.read()
}
override fun channelRead0(ctx: ChannelHandlerContext, msg: HttpRequest) {
if (msg.method() != HttpMethod.GET || msg.uri() != ENDPOINT) {
ctx.write(Http.createResponse(HttpResponseStatus.BAD_REQUEST)).addListener(ChannelFutureListener.CLOSE)
return
}
val response = Http.createResponse(HttpResponseStatus.OK)
response.headers().add(HttpHeaderNames.CONTENT_TYPE, Http.TEXT_X_CROSS_DOMAIN_POLICY)
response.headers().add(HttpHeaderNames.CONTENT_LENGTH, POLICY.size)
ctx.write(response, ctx.voidPromise())
ctx.write(Unpooled.wrappedBuffer(POLICY)).addListener(ChannelFutureListener.CLOSE)
}
override fun channelReadComplete(ctx: ChannelHandlerContext) {
ctx.flush()
}
}