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135 lines
4.3 KiB
C++
135 lines
4.3 KiB
C++
/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD 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.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file tcp_content.h Basic functions to receive and send TCP packets to/from the content server.
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*/
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#ifndef NETWORK_CORE_TCP_CONTENT_H
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#define NETWORK_CORE_TCP_CONTENT_H
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#include "os_abstraction.h"
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#include "tcp.h"
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#include "packet.h"
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#include "../../debug.h"
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#include "tcp_content_type.h"
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/** Base socket handler for all Content TCP sockets */
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class NetworkContentSocketHandler : public NetworkTCPSocketHandler {
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protected:
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void Close() override;
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bool ReceiveInvalidPacket(PacketContentType type);
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/**
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* Client requesting a list of content info:
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* byte type
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* uint32 openttd version
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* @param p The packet that was just received.
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* @return True upon success, otherwise false.
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*/
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virtual bool Receive_CLIENT_INFO_LIST(Packet *p);
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/**
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* Client requesting a list of content info:
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* uint16 count of ids
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* uint32 id (count times)
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* @param p The packet that was just received.
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* @return True upon success, otherwise false.
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*/
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virtual bool Receive_CLIENT_INFO_ID(Packet *p);
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/**
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* Client requesting a list of content info based on an external
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* 'unique' id; GRF ID for NewGRFS, shortname and for base
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* graphics and AIs.
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* Scenarios and AI libraries are not supported
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* uint8 count of requests
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* for each request:
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* uint8 type
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* unique id (uint32)
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* @param p The packet that was just received.
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* @return True upon success, otherwise false.
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*/
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virtual bool Receive_CLIENT_INFO_EXTID(Packet *p);
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/**
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* Client requesting a list of content info based on an external
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* 'unique' id; GRF ID + MD5 checksum for NewGRFS, shortname and
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* xor-ed MD5 checksums for base graphics and AIs.
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* Scenarios and AI libraries are not supported
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* uint8 count of requests
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* for each request:
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* uint8 type
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* unique id (uint32)
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* md5 (16 bytes)
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* @param p The packet that was just received.
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* @return True upon success, otherwise false.
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*/
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virtual bool Receive_CLIENT_INFO_EXTID_MD5(Packet *p);
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/**
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* Server sending list of content info:
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* byte type (invalid ID == does not exist)
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* uint32 id
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* uint32 file_size
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* string name (max 32 characters)
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* string version (max 16 characters)
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* uint32 unique id
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* uint8 md5sum (16 bytes)
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* uint8 dependency count
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* uint32 unique id of dependency (dependency count times)
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* uint8 tag count
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* string tag (max 32 characters for tag count times)
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* @param p The packet that was just received.
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* @return True upon success, otherwise false.
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*/
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virtual bool Receive_SERVER_INFO(Packet *p);
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/**
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* Client requesting the actual content:
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* uint16 count of unique ids
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* uint32 unique id (count times)
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* @param p The packet that was just received.
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* @return True upon success, otherwise false.
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*/
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virtual bool Receive_CLIENT_CONTENT(Packet *p);
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/**
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* Server sending list of content info:
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* uint32 unique id
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* uint32 file size (0 == does not exist)
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* string file name (max 48 characters)
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* After this initial packet, packets with the actual data are send using
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* the same packet type.
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* @param p The packet that was just received.
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* @return True upon success, otherwise false.
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*/
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virtual bool Receive_SERVER_CONTENT(Packet *p);
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bool HandlePacket(Packet *p);
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public:
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/**
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* Create a new cs socket handler for a given cs
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* @param s the socket we are connected with
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* @param address IP etc. of the client
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*/
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NetworkContentSocketHandler(SOCKET s = INVALID_SOCKET) :
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NetworkTCPSocketHandler(s)
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{
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}
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/** On destructing of this class, the socket needs to be closed */
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virtual ~NetworkContentSocketHandler() { this->Close(); }
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bool ReceivePackets();
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};
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Subdirectory GetContentInfoSubDir(ContentType type);
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#endif /* NETWORK_CORE_TCP_CONTENT_H */
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