Fix SSL handshake error, set timeout and SSL prefun calls

.vscode/tasks.json

@@ -0,0 +1,31 @@
+{
+    "tasks": [
+        {
+            "type": "cppbuild",
+            "label": "C/C++: g++ build active file",
+            "command": "/usr/bin/g++",
+            "args": [
+                "-g",
+                "${fileDirname}/client.cpp",
+                "${fileDirname}/../src/*.cpp",
+                // "${fileDirname}../include/*/src/*.cpp",
+                "-o",
+                "${fileDirname}/client.o",
+                "-lssl",
+                "-lcrypto"
+            ],
+            "options": {
+                "cwd": "${fileDirname}"
+            },
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "detail": "Task generated by Debugger."
+        }
+    ],
+    "version": "2.0.0"
+}

lib/tcp_socket.hpp

@@ -55,7 +55,7 @@ class client {
     struct sockaddr_in addr;
     SSL* ssl = NULL;
 
-    client (const string address, const ushort port, const uint timeout = 500, SSL_CTX* securefds = NULL);
+    client (const string address, const ushort port, const uint timeout = 100, SSL_CTX* securefds = NULL);
     ~client ();
     bool tell (const string msg);
     string obey (size_t byte_limit = 1024);

src/tcp_socket.cpp

@@ -53,6 +53,11 @@ server::~server () {
 */
 
 secure::secure() {
+
+    SSL_library_init();
+    SSL_load_error_strings();
+    OpenSSL_add_all_algorithms();
+
     fds = SSL_CTX_new(SSLv23_client_method());
     if (!fds) {
         throw string("[ERROR] Creating SSL context ");
@@ -71,7 +76,7 @@ secure::secure(const string cert, const string priv) {
     SSL_load_error_strings();
     OpenSSL_add_all_algorithms();
 
-        // Create an SSL context
+    // Create an SSL context
     fds = SSL_CTX_new(SSLv23_server_method());
     if (!fds) {
         throw string("[ERROR] Creating SSL context ");
@@ -135,12 +140,13 @@ client::client(const string address, const ushort port, const uint timeout, SSL_
         }
         SSL_set_fd(ssl, sock);
 
-    }
         // Perform the SSL handshake
-    if (SSL_connect(ssl) <= 0) {
+        if (SSL_connect(ssl) <= 0) {
-        SSL_free(ssl);
+            SSL_free(ssl);
-        throw string("[ERROR] Performing SSL handshake ");
+            throw string("[ERROR] Performing SSL handshake ");
+        }
     }
+    
 
 }
 
@@ -234,6 +240,7 @@ comming::comming(const server *_srv, const uint timeout, SSL_CTX* securefds) {
             throw string("[ERROR] Creating SSL object ");
         }
         SSL_set_fd(ssl, conn);
+
         // Perform SSL handshake
         if (SSL_accept(ssl) <= 0) {
             SSL_free(ssl);

test/client.cpp

@@ -8,11 +8,19 @@ int main() {
 
     try {
 
-    secure crypto;
+        secure crypto;
-    client myserver("localhost", 5000, 500, crypto.fds);
+        cout << "init cert " << endl;
-    string sends = "Hello world!";
+
-    cout << myserver.tell(sends) << " " << sends.length() << endl;
+        client myserver("127.0.0.1", 5000, 500, crypto.fds);
-    cout << myserver.obey();
+        // client myserver("localhost", 5000);
+        cout << "init client " << endl;
+
+
+        string sends = "Hello world!";
+        cout << myserver.tell(sends) << " " << sends.length() << endl;
+        cout << "wait client " << endl;
+
+        cout << myserver.obey();
 
     }
     catch (const string err) {

test/server.cpp

@@ -5,35 +5,36 @@
 using namespace std;
 
 int main() {
-try{
+    try{
-    cout << "init server " << endl;
+        cout << "init server " << endl;
-    server myserver(5000, 10);
+        server myserver(5000);
-    cout << "init cert " << endl;
+        cout << "init cert " << endl;
-    secure crypto ("../example/cert.pem", "../example/privkey.pem");
+        secure crypto ("../example/cert.pem", "../example/privkey.pem");
-    cout << "init client " << endl;
+        cout << "init client " << endl;
 
-    comming myclient(&myserver, 1000, crypto.fds);
+        comming myclient(&myserver, 100, crypto.fds);
-    cout << "wait client " << myclient.ipv4 << endl;
+        // comming myclient(&myserver, 100);
+        cout << "wait client " << myclient.ipv4 << endl;
 
-    string fromclient =  myclient.obey();
+        string fromclient =  myclient.obey();
-    cout << "tell client " << fromclient << endl;
+        cout << "tell client " << fromclient << endl;
-    sleep(5);
+        // sleep(5);
-    myclient.tell(fromclient);
+        myclient.tell(fromclient);
-    // myclient.~comming();
+        // myclient.~comming();
 
-    // while (true) {
+        // while (true) {
-    //     comming myclient(&myserver, 1000);
+        //     comming myclient(&myserver, 1000);
-    //     string fromclient =  myclient.obey();
+        //     string fromclient =  myclient.obey();
-    //     cout << fromclient << " " << myclient.conn << endl;
+        //     cout << fromclient << " " << myclient.conn << endl;
-    //     cout << "Poslano: " << myclient.tell(fromclient) << "Veličin: " << fromclient.length() << endl;
+        //     cout << "Poslano: " << myclient.tell(fromclient) << "Veličin: " << fromclient.length() << endl;
-    //     // myclient.~comming();
+        //     // myclient.~comming();
-    //     cout << "IPv4 " << myclient.ipv4 << " ipv6 " << myclient.ipv6;
+        //     cout << "IPv4 " << myclient.ipv4 << " ipv6 " << myclient.ipv6;
-    // }
+        // }
 
-    // sleep(80);
+        // sleep(80);
-}
+    }
-catch(const string err) {
+    catch(const string err) {
-    cout << err << endl;
+        cout << err << endl;
-}
+    }
     return 0;
 }