Initial commit: wowee native WoW 3.3.5a client

include/network/world_socket.hpp

@@ -0,0 +1,92 @@
+#pragma once
+
+#include "network/socket.hpp"
+#include "network/packet.hpp"
+#include "auth/rc4.hpp"
+#include <functional>
+#include <vector>
+#include <cstdint>
+
+namespace wowee {
+namespace network {
+
+/**
+ * World Server Socket
+ *
+ * Handles WoW 3.3.5a world server protocol with RC4 header encryption.
+ *
+ * Key Differences from Auth Server:
+ * - Outgoing: 6-byte header (2 bytes size + 4 bytes opcode, big-endian)
+ * - Incoming: 4-byte header (2 bytes size + 2 bytes opcode, big-endian)
+ * - Headers are RC4-encrypted after CMSG_AUTH_SESSION
+ * - Packet bodies remain unencrypted
+ * - Size field is payload size only (does NOT include header)
+ */
+class WorldSocket : public Socket {
+public:
+    WorldSocket();
+    ~WorldSocket() override;
+
+    bool connect(const std::string& host, uint16_t port) override;
+    void disconnect() override;
+    bool isConnected() const override;
+
+    /**
+     * Send a world packet
+     * Automatically encrypts 6-byte header if encryption is enabled
+     *
+     * @param packet Packet to send
+     */
+    void send(const Packet& packet) override;
+
+    /**
+     * Update socket - receive data and parse packets
+     * Should be called regularly (e.g., each frame)
+     */
+    void update();
+
+    /**
+     * Set callback for complete packets
+     *
+     * @param callback Function to call when packet is received
+     */
+    void setPacketCallback(std::function<void(const Packet&)> callback) {
+        packetCallback = callback;
+    }
+
+    /**
+     * Initialize RC4 encryption for packet headers
+     * Must be called after CMSG_AUTH_SESSION before further communication
+     *
+     * @param sessionKey 40-byte session key from auth server
+     */
+    void initEncryption(const std::vector<uint8_t>& sessionKey);
+
+    /**
+     * Check if header encryption is enabled
+     */
+    bool isEncryptionEnabled() const { return encryptionEnabled; }
+
+private:
+    /**
+     * Try to parse complete packets from receive buffer
+     */
+    void tryParsePackets();
+
+    int sockfd = -1;
+    bool connected = false;
+    bool encryptionEnabled = false;
+
+    // RC4 ciphers for header encryption/decryption
+    auth::RC4 encryptCipher;  // For outgoing headers
+    auth::RC4 decryptCipher;  // For incoming headers
+
+    // Receive buffer
+    std::vector<uint8_t> receiveBuffer;
+
+    // Packet callback
+    std::function<void(const Packet&)> packetCallback;
+};
+
+} // namespace network
+} // namespace wowee