ConnectRequestFilter.java
/*
** Module : ConnectRequestFilter.java
** Abstract : Implementation of the builtin class.
**
** Copyright (c) 2020-2023, Golden Code Development Corporation.
**
** -#- -I- --Date-- -------------------------------Description--------------------------------
** 001 MP 20200603 First version, stubs taken by converting the skeleton using FWD.
** 002 MP 20200707 Add code in constructor and methods
** 003 MP 20210106 Improve code based on existing tests - as OE12.2
*
** 004 CA 20210221 Fixed 'qualified', 'extent' and 'returns' annotations at the legacy
** signature.
** CA 20220923 Variable definitions (including associated with parameters) must be done always outside of
** the BlockManager API
** 005 CA 20231113 The 'execute' method must be annotated with LegacySignature Type.Execute, and also can be
** dropped if is a no-op.
*/
/*
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU Affero General Public License as
** published by the Free Software Foundation, either version 3 of the
** License, or (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU Affero General Public License for more details.
**
** You may find a copy of the GNU Affero GPL version 3 at the following
** location: https://www.gnu.org/licenses/agpl-3.0.en.html
**
** Additional terms under GNU Affero GPL version 3 section 7:
**
** Under Section 7 of the GNU Affero GPL version 3, the following additional
** terms apply to the works covered under the License. These additional terms
** are non-permissive additional terms allowed under Section 7 of the GNU
** Affero GPL version 3 and may not be removed by you.
**
** 0. Attribution Requirement.
**
** You must preserve all legal notices or author attributions in the covered
** work or Appropriate Legal Notices displayed by works containing the covered
** work. You may not remove from the covered work any author or developer
** credit already included within the covered work.
**
** 1. No License To Use Trademarks.
**
** This license does not grant any license or rights to use the trademarks
** Golden Code, FWD, any Golden Code or FWD logo, or any other trademarks
** of Golden Code Development Corporation. You are not authorized to use the
** name Golden Code, FWD, or the names of any author or contributor, for
** publicity purposes without written authorization.
**
** 2. No Misrepresentation of Affiliation.
**
** You may not represent yourself as Golden Code Development Corporation or FWD.
**
** You may not represent yourself for publicity purposes as associated with
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** clear that the modified work is not originating from Golden Code Development
** Corporation or FWD. All modified versions must contain the notices of
** attribution required in this license.
*/
package com.goldencode.p2j.oo.net.http.filter.payload;
import com.goldencode.p2j.util.*;
import com.goldencode.p2j.util.BlockManager.Action;
import com.goldencode.p2j.util.BlockManager.Condition;
import static com.goldencode.p2j.report.ReportConstants.CVT_LVL_FULL;
import static com.goldencode.p2j.report.ReportConstants.RT_LVL_FULL;
import static com.goldencode.p2j.util.BlockManager.*;
import static com.goldencode.p2j.util.InternalEntry.Type;
import com.goldencode.p2j.oo.core.Assert;
import com.goldencode.p2j.oo.core.ByteBucket;
import com.goldencode.p2j.oo.lang.AppError;
import com.goldencode.p2j.oo.net.http.IhttpRequest;
/**
* Business logic (converted to Java from the 4GL source code
* in OpenEdge/Net/HTTP/Filter/Payload/ConnectRequestFilter.cls).
*/
@LegacyResource(resource = "OpenEdge.Net.HTTP.Filter.Payload.ConnectRequestFilter")
@LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
public class ConnectRequestFilter
extends com.goldencode.p2j.oo.net.http.filter.payload.MessageWriter
{
@LegacySignature(type = Type.EXECUTE)
public void __net_http_filter_payload_ConnectRequestFilter_execute__()
{
onBlockLevel(Condition.ERROR, Action.THROW);
}
@LegacySignature(type = Type.CONSTRUCTOR)
@LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
public void __net_http_filter_payload_ConnectRequestFilter_constructor__()
{
internalProcedure(ConnectRequestFilter.class, this, "__net_http_filter_payload_ConnectRequestFilter_constructor__", new Block((Body) () ->
{
__net_http_filter_payload_MessageWriter_constructor__(ObjectOps.getLegacyClass(ByteBucket.class));
}));
}
@LegacySignature(returns = "INT64", type = Type.METHOD, name = "Write", parameters =
{
@LegacyParameter(name = "pData", type = "OBJECT", qualified = "progress.lang.object", mode = "INPUT")
})
@LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
@Override
public int64 write(final object<? extends com.goldencode.p2j.oo.lang._BaseObject_> _pData)
{
object<? extends com.goldencode.p2j.oo.lang._BaseObject_> pData = TypeFactory.initInput(_pData);
longchar CRLF = TypeFactory.longchar("~r~n");
return function(ConnectRequestFilter.class, this, "Write", int64.class, new Block((Body) () ->
{
Assert.isType(pData, ObjectOps.getLegacyClass(IhttpRequest.class));
int64 prevSize = bucket().getSize();
object<? extends IhttpRequest> req = ObjectOps.cast(pData, IhttpRequest.class);
Assert.notNull(req.ref().getUri(), new character("Request URI"));
character host = new character(req.ref().getUri().ref().getHost());
integer port = new integer(req.ref().getUri().ref().getPort());
Assert.notNullOrEmpty(host, new character("Host name"));
if(port.isUnknown())
{
String scheme = req.ref().getUri().ref().getScheme().getValue();
if( scheme.equals("http"))
{
port.assign(80);
}
if( scheme.equals("https"))
{
port.assign(443);
}
}
Assert.notNullOrZero(port, new character("Port"));
if(port.intValue() > 65535)
{
undoThrowTopLevel(AppError.newInstance(TextOps.substitute("Port is too large: &1 (max allowed: 65535)", port.intValue()).getValue(), 0));
}
character reqUri = new character(TextOps.substitute("&1:&2", host.getValue(), port.intValue()));
//add connect line
bucket().putString(new longchar(TextOps.substitute("CONNECT &1 &2", reqUri, req.ref().getVersion())));
bucket().putString(CRLF);
//add headers
bucket().putString(new longchar(TextOps.substitute("Host: &1", reqUri)));
bucket().putString(CRLF);
bucket().putString(new longchar(req.ref().getHeader(new character("User-Agent")).ref().toLegacyString()));
bucket().putString(CRLF);
bucket().putString(new longchar("Connection: keep-alive"));
bucket().putString(CRLF);
//add final CRLF who indicate end of headers
bucket().putString(CRLF);
returnNormal(MathOps.minus(bucket().getSize(), prevSize));
}));
}
}