Support Windows for client

lib/tcp_socket.hpp

@@ -3,17 +3,30 @@
 
 #include <iostream>
 #include <string>
+#include <vector>
 #include <string.h>
+#include <openssl/ssl.h>
+#include <openssl/err.h>
+
+#if __linux__
     #include <arpa/inet.h>
     #include <netdb.h>
     #include <unistd.h>
-#include <openssl/ssl.h>
+#elif _WIN32
-#include <openssl/err.h>
+    // #include <sstream>
+    #include <WinSock.h>
+    #include <ws2tcpip.h>
+#endif
 
 #include "ip.hpp"
 
 using namespace std;
 
+class client;
+// class secure;
+// class server;
+
+
 /**
  * Server klasa za TCP/IP soket
  * Instanca se incijalizira kada pokrećemo server
@@ -23,10 +36,15 @@ class server {
     public:
     int sock;
     struct sockaddr_in addr;
+    SSL_CTX* securefds = NULL;
 
-    server (const ushort port, const uint limit = 1000);
+    server (const ushort port, const uint limit = 1000, SSL_CTX* _securefds = NULL);
     ~server ();
 
+    // one klijent
+    client* cli;
+    void accept(const uint timeout = 100);   
+
 };
 
 /**
@@ -51,40 +69,23 @@ class secure {
 
 class client {
     public:
-    int sock;
+    // zajedničke
+    int conn; // mijenja sock
     struct sockaddr_in addr;
     SSL* ssl = NULL;
-
+    // server s klijentima
-    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);
-};
-
-
-/**
- * Klasa za inicijalizaciju dolaznih veza
- * Definira se na serverskom tipu aplikacija i predstavlja identifikator klijenta
-*/
-
-class comming {
-    public:
     const server* srv;
-    struct sockaddr_in addr;
+    // klijent sa serverom
-    int conn;
     string ipv4;
     string ipv6;
-    SSL* ssl = NULL;
-
-    comming(const server *_srv, const uint timeout = 100, SSL_CTX* securefds = NULL);
-    ~comming();
-    bool tell (const string msg);
-    string obey (size_t byte_limit = 1024);
-
     
+    // konstruktor za klijente bez servera
+    client (const string address, const ushort port, const uint timeout = 100, SSL_CTX* securefds = NULL);
+    // konstruktor za klijente sa serverom
+    client (const server *_srv, const uint timeout = 100, SSL_CTX* securefds = NULL);
+    ~client ();
+    bool push (const string msg);
+    string pull (size_t byte_limit = 1024);
 };
 
-
-
-
 #endif

src/tcp_socket.cpp

@@ -4,7 +4,8 @@
  * Kontrustruktor varijable tipa server, prima port i limit za ograničenje liste klijenata na čekanju
 */
 
-server::server (const ushort port, const uint limit) {
+server::server (const ushort port, const uint limit, SSL_CTX* _securefds) {
+    securefds = _securefds;
 
     addr.sin_family = AF_INET;
     addr.sin_addr.s_addr = INADDR_ANY;
@@ -31,6 +32,10 @@ server::server (const ushort port, const uint limit) {
 
 }
 
+void server::accept(const uint timeout) {
+    cli = new client(this, timeout, securefds);
+}
+
 /**
  * Destruktor varijable tipa server
 */
@@ -38,6 +43,9 @@ server::server (const ushort port, const uint limit) {
 
 server::~server () {
 
+    cli->~client();
+    cli = NULL;
+
     if (sock<=0) {
         throw string("[ERROR] The socket is already closed "); 
     }
@@ -110,8 +118,17 @@ secure::~secure () {
 
 client::client(const string address, const ushort port, const uint timeout, SSL_CTX* securefds) {
 
-    sock = socket(AF_INET, SOCK_STREAM, 0);
+    #if _WIN32
-	if (sock < 0) {
+        WSADATA wsa;
+        SOCKET s;
+        if (WSAStartup(MAKEWORD(2,2),&wsa) != 0) {
+            //printf("Failed. Error Code : %d",WSAGetLastError());
+            throw string("[ERROR] Unable to set WinSock " + to_string(WSAGetLastError()));
+        }
+    #endif
+
+    conn = socket(AF_INET, SOCK_STREAM, 0);
+	if (conn < 0) {
         throw string("[ERROR] Unable to open TCP socket ");
 	}
 
@@ -121,7 +138,7 @@ client::client(const string address, const ushort port, const uint timeout, SSL_
 	addr.sin_addr.s_addr = inet_addr(_address.c_str());
 	addr.sin_port = htons(port);
 
-    if (connect(sock, (struct sockaddr*)&addr, sizeof(struct sockaddr_in)) != 0) {
+    if (connect(conn, (struct sockaddr*)&addr, sizeof(struct sockaddr_in)) != 0) {
         throw string("Unable to connect to server ");
     }
 
@@ -129,7 +146,7 @@ client::client(const string address, const ushort port, const uint timeout, SSL_
     tv.tv_sec = timeout/1000;
     tv.tv_usec = (timeout%1000)*1000;
 
-    if (setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(struct timeval))) {
+    if (setsockopt(conn, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(struct timeval))) {
         throw string("[ERROR] Unable to set timeout ");
     }
 
@@ -138,7 +155,7 @@ client::client(const string address, const ushort port, const uint timeout, SSL_
         if (!ssl) {
             throw string("[ERROR] Creating SSL object ");
         }
-        SSL_set_fd(ssl, sock);
+        SSL_set_fd(ssl, conn);
 
         // Perform the SSL handshake
         if (SSL_connect(ssl) <= 0) {
@@ -150,65 +167,6 @@ client::client(const string address, const ushort port, const uint timeout, SSL_
 
 }
 
-
-/**
- * Destruktor varijable tipa client
-*/
-
-client::~client () {
-
-    if (ssl) {
-        SSL_shutdown(ssl);
-        SSL_free(ssl);
-    }
-
-    if (sock <= 0) {
-        throw string("[ERROR] The socket is already closed "); 
-    }
-
-    else if (close(sock) != 0) {
-        throw string("[ERROR] Unable to close socket ");
-    }
-
-}
-
-/**
- * Metoda klase client za slanje podataka preko soketa
- * Prima string koji će biti poslan
- * Vraća logički statu poređenja psolanih karaktera i karaktera u stringu
-*/
-
-
-bool client::tell (const string msg) {
-    size_t sended = 0;
-    if (ssl) {
-       sended = SSL_write(ssl, msg.c_str(), msg.length());
-    }
-    else {
-        sended = write(sock, msg.c_str(), msg.length());
-    }
-    return sended == msg.length();
-}
-
-/**
- * Metoda klase client za primanje poruke preko soketa
- * Prima dozvoljeni broj karaktera koji će primiti
- * Vraća string primljene poruke
-*/
-
-string client::obey (size_t byte_limit) {
-   char res[byte_limit] = {0};
-
-    if (ssl) {
-        SSL_read(ssl, res, byte_limit);
-    }
-    else {
-        read(sock , res, byte_limit);
-    }
-
-    return string(res);
-}
-
 /**
  * Konstruktor varijable tipa commint
  * Prima pokazivač na inicijaliziranu varijablu tipa, port, 
@@ -217,7 +175,7 @@ string client::obey (size_t byte_limit) {
 */
 
 
-comming::comming(const server *_srv, const uint timeout, SSL_CTX* securefds) {
+client::client(const server *_srv, const uint timeout, SSL_CTX* securefds) {
     srv = _srv;
     socklen_t len = sizeof(struct sockaddr_in);
 
@@ -259,11 +217,16 @@ comming::comming(const server *_srv, const uint timeout, SSL_CTX* securefds) {
 
 }
 
+
 /**
- * Destruktor varijable tipa comming
+ * Destruktor varijable tipa client
 */
 
-comming::~comming() {
+client::~client () {
+
+    #if _WIN32
+        WSACleanup();
+    #endif
 
     if (ssl) {
         SSL_shutdown(ssl);
@@ -277,16 +240,18 @@ comming::~comming() {
     else if (close(conn) != 0) {
         throw string("[ERROR] Unable to close socket ");
     }
+
 }
 
 /**
- * Metoda klase comming za slanje podataka preko soketa
+ * Metoda klase client za slanje podataka preko soketa
  * Prima string koji će biti poslan
  * Vraća logički statu poređenja psolanih karaktera i karaktera u stringu
 */
 
-bool comming::tell (const string msg) {
+
-    ssize_t sended = 0;
+bool client::push (const string msg) {
+    size_t sended = 0;
     if (ssl) {
        sended = SSL_write(ssl, msg.c_str(), msg.length());
     }
@@ -296,14 +261,13 @@ bool comming::tell (const string msg) {
     return sended == msg.length();
 }
 
-
 /**
- * Metoda klase comming za primanje poruke preko soketa
+ * Metoda klase client za primanje poruke preko soketa
  * Prima dozvoljeni broj karaktera koji će primiti
  * Vraća string primljene poruke
 */
 
-string comming::obey (size_t byte_limit) {
+string client::pull (size_t byte_limit) {
    char res[byte_limit] = {0};
 
     if (ssl) {
@@ -315,3 +279,6 @@ string comming::obey (size_t byte_limit) {
 
     return string(res);
 }
+
+
+

test/client.cpp

@@ -17,10 +17,10 @@ int main() {
 
 
         string sends = "Hello world!";
-        cout << myserver.tell(sends) << " " << sends.length() << endl;
+        cout << myserver.push(sends) << " " << sends.length() << endl;
         cout << "wait client " << endl;
 
-        cout << myserver.obey();
+        cout << myserver.pull();
 
     }
     catch (const string err) {

test/server.cpp

@@ -6,21 +6,26 @@ using namespace std;
 
 int main() {
     try{
-        cout << "init server " << endl;
-        server myserver(5000);
         cout << "init cert " << endl;
         secure crypto ("../example/cert.pem", "../example/privkey.pem");
+        cout << "init server " << endl;
+        server myserver(5000, 100, crypto.fds);
+        
         cout << "init client " << endl;
 
-        comming myclient(&myserver, 100, crypto.fds);
+        // client myclient(&myserver, 100, crypto.fds);
         // comming myclient(&myserver, 100);
-        cout << "wait client " << myclient.ipv4 << endl;
+        myserver.accept();
+        // cout << "wait client " << myclient.ipv4 << endl;
+        cout << "wait client " << myserver.cli->ipv4 << endl;
 
-        string fromclient =  myclient.obey();
+        string fromclient =  myserver.cli->pull();
+        // string fromclient =  myclient.pull();
         cout << "tell client " << fromclient << endl;
         // usleep(600*1000);
         sleep(5);
-        myclient.tell(fromclient);
+        myserver.cli->push(fromclient);
+        // myclient.push(fromclient);
         // myclient.~comming();
 
         // while (true) {