feat: implement SSLSocket for encrypted connections and add terminal size detection utility

1 files changed, 93 insertions, 0 deletions

diff --git a/include/ricochet/net/ssl_socket.hh b/include/ricochet/net/ssl_socket.hh
new file mode 100644
index 0000000..36a92b6
--- /dev/null
+++ b/include/ricochet/net/ssl_socket.hh
@@ -0,0 +1,93 @@
+/*
+ * Ricochet - A minimalist CLI web browser for fast, distraction-free navigation.
+ * Copyright (C) 2026  Richard Qin
+ *
+ * This program 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, 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "sys/address.hh"
+#include "sys/socket.hh"
+#include <memory>
+#include <string>
+#include <string_view>
+
+extern "C" {
+using SSL_CTX = struct ssl_ctx_st;
+using SSL = struct ssl_st;
+}
+
+namespace ricochet::net {
+
+struct SslCtxDeleter
+{
+  void operator()( SSL_CTX* ptr ) const;
+};
+struct SslDeleter
+{
+  void operator()( SSL* ptr ) const;
+};
+
+using UniqueSslCtx = std::unique_ptr<SSL_CTX, SslCtxDeleter>;
+using UniqueSsl = std::unique_ptr<SSL, SslDeleter>;
+
+/**
+ * @brief Socket wrapper that supports TLS/SSL encrypted handshake
+ */
+class SSLSocket
+{
+public:
+  SSLSocket();
+  ~SSLSocket() = default;
+
+  SSLSocket( const SSLSocket& ) = delete;
+  SSLSocket& operator=( const SSLSocket& ) = delete;
+  SSLSocket( SSLSocket&& ) = delete;
+  SSLSocket& operator=( SSLSocket&& ) = delete;
+
+  /**
+   * @brief Connect to a remote host using TLS/SSL
+   * @param host The hostname to connect to
+   * @param port The port to connect to
+   * @return True if the connection was successful, false otherwise
+   */
+  void connect( const Address& address, const std::string& hostname );
+
+  /**
+   * @brief Send data over the TLS/SSL connection
+   * @param data The data to send
+   * @return The number of bytes sent, or -1 if an error occurred
+   */
+  std::size_t write( std::string_view data );
+
+  /**
+   * @brief Receive data from the TLS/SSL connection
+   * @param buffer The buffer to store the received data
+   */
+  void read( std::string& buffer );
+
+  /**
+   * @brief Check if the TLS/SSL connection is closed
+   * @return True if the connection is closed, false otherwise
+   */
+  bool eof() const;
+
+private:
+  TCPSocket underlying_socket_ {}; // TCP Socket
+  UniqueSslCtx ctx_ { nullptr };   // OpenSSL global context
+  UniqueSsl ssl_ { nullptr };      // Current connection's SSL state
+  bool eof_ { false };             // EOF flag
+};
+} // namespace ricochet::net
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