Open-source multiplayer game server compatible with the RuneScape client
https://www.openrs2.org/
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60 lines
2.0 KiB
60 lines
2.0 KiB
package org.openrs2.game.net.crossdomain
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import io.netty.buffer.Unpooled
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import io.netty.channel.ChannelHandler
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import io.netty.channel.ChannelHandlerContext
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import io.netty.channel.SimpleChannelInboundHandler
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import io.netty.handler.codec.http.HttpMethod
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import io.netty.handler.codec.http.HttpRequest
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import io.netty.handler.codec.http.HttpResponseStatus
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import io.netty.handler.timeout.IdleStateEvent
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import org.openrs2.buffer.use
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import org.openrs2.game.net.http.Http
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@ChannelHandler.Sharable
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public object CrossDomainChannelHandler : SimpleChannelInboundHandler<HttpRequest>() {
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private const val ENDPOINT = "/crossdomain.xml"
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private val POLICY = """
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<?xml version="1.0"?>
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<!DOCTYPE cross-domain-policy SYSTEM "http://www.adobe.com/xml/dtds/cross-domain-policy.dtd">
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<cross-domain-policy>
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<site-control permitted-cross-domain-policies="master-only" />
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<allow-access-from domain="*" />
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</cross-domain-policy>
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""".trimIndent().plus("\n").toByteArray(Charsets.UTF_8)
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override fun handlerAdded(ctx: ChannelHandlerContext) {
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ctx.read()
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}
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override fun channelRead0(ctx: ChannelHandlerContext, msg: HttpRequest) {
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if (msg.method() != HttpMethod.GET || msg.uri() != ENDPOINT) {
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Http.writeResponse(ctx, msg, HttpResponseStatus.BAD_REQUEST)
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return
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}
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Unpooled.wrappedBuffer(POLICY).use { buf ->
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Http.writeResponse(ctx, msg, buf, Http.TEXT_X_CROSS_DOMAIN_POLICY)
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}
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}
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override fun channelReadComplete(ctx: ChannelHandlerContext) {
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ctx.flush()
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if (ctx.channel().isWritable) {
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ctx.read()
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}
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}
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override fun channelWritabilityChanged(ctx: ChannelHandlerContext) {
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if (ctx.channel().isWritable) {
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ctx.read()
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}
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}
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override fun userEventTriggered(ctx: ChannelHandlerContext, evt: Any) {
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if (evt is IdleStateEvent) {
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ctx.close()
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}
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}
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}
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