From fd62679c25b09a9c46ae8bd2d29d9c1dcededb1a Mon Sep 17 00:00:00 2001
From: Kilian Hofmann <llego03@yahoo.com>
Date: Sun, 4 Sep 2022 19:50:47 +0200
Subject: [PATCH] SSL Test Pt. 1

---
 socket/include/socket.h | 20 ++++++++++++++
 socket/socket.cpp       | 59 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 79 insertions(+)

diff --git a/socket/include/socket.h b/socket/include/socket.h
index 784324f..5e54946 100644
--- a/socket/include/socket.h
+++ b/socket/include/socket.h
@@ -17,15 +17,35 @@
 #include <string>
 #include <utility>
 
+#ifdef IBM
+#endif
+#ifdef APL
+#endif
+#ifdef LIN
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <openssl/err.h>
+#include <openssl/ssl.h>
+#include <sys/socket.h>
+#endif
+
 class Socket
 {
   private:
+#ifdef LIN
+    SSL *ssl;
+    int sock;
+#endif
     char lastPath[513] = "";
     char lastHash[2 * MD5LEN + 1] = "";
     std::mutex wsLock;
     std::string url;
     std::function<void(std::string)> toLog;
 
+#ifdef LIN
+    void logSSL();
+#endif
+
   public:
     explicit Socket(std::string url,
                     std::function<void(const std::string)> toLog);
diff --git a/socket/socket.cpp b/socket/socket.cpp
index 3b0d546..0c06785 100644
--- a/socket/socket.cpp
+++ b/socket/socket.cpp
@@ -6,6 +6,52 @@ Socket::Socket(std::string url, std::function<void(const std::string)> toLog)
 #ifdef IBM
   // WSA INIT
   int a = 0;
+#endif
+#ifdef APL
+  int a = 0;
+#endif
+#ifdef LIN
+  int s;
+  s = socket(AF_INET, SOCK_STREAM, 0);
+  if (s < 0) {
+    toLog("Error creating socket.");
+    return;
+  }
+  struct sockaddr_in sa;
+  memset(&sa, 0, sizeof(sa));
+  sa.sin_family = AF_INET;
+  sa.sin_addr.s_addr =
+      inet_addr("136.243.123.153"); // address of german-airlines.de
+  sa.sin_port = htons(443);
+  socklen_t socklen = sizeof(sa);
+  if (connect(s, (struct sockaddr *)&sa, socklen)) {
+    toLog("Error connecting to server.");
+    return;
+  }
+  SSL_library_init();
+  SSLeay_add_ssl_algorithms();
+  SSL_load_error_strings();
+  const SSL_METHOD *meth = TLSv1_2_client_method();
+  SSL_CTX *ctx = SSL_CTX_new(meth);
+  ssl = SSL_new(ctx);
+  if (!ssl) {
+    toLog("Error creating SSL.");
+    logSSL();
+    return;
+  }
+  sock = SSL_get_fd(ssl);
+  SSL_set_fd(ssl, s);
+  int err = SSL_connect(ssl);
+  if (err <= 0) {
+    std::ostringstream msg;
+    msg << "Error creating SSL connection.  err=" << err;
+    toLog(msg.str());
+    logSSL();
+    return;
+  }
+  std::ostringstream msg;
+  msg << "SSL connection using " << SSL_get_cipher(ssl);
+  toLog(msg.str());
 #endif
   // PLATFORM AGNOSTIC
 }
@@ -44,3 +90,16 @@ void Socket::sendData(data d)
     // SEND
   }
 }
+
+#ifdef LIN
+void Socket::logSSL()
+{
+  int err;
+  while ((err = ERR_get_error())) {
+    char *str = ERR_error_string(err, 0);
+    if (!str)
+      return;
+    toLog(str);
+  }
+}
+#endif
\ No newline at end of file