set RFB desktop name

svn path=/trunk/kdenetwork/krfb/; revision=191529

TODO

@@ -1,10 +1,7 @@
-For 3.1:
-- write SLP service template for remote desktop protocols
-  (documentation)
 
 For 3.2:
-- set desktop name (username@hostname)
-- apply multi-desktop patch
+- write SLP service template for remote desktop protocols
+  (documentation)
 - trayicon mouse-over text
 - when krfb is started with URL arguments and without connection
   quality, add some kind of smart algorithm to determine whether the

krfb/rfbcontroller.cc

@@ -24,6 +24,7 @@
  */
 
 #include "rfbcontroller.h"
+#include "kuser.h"
 
 #include <netinet/tcp.h>
 #include <netinet/in.h>
@@ -324,6 +325,11 @@ RFBController::RFBController(Configuration *c) :
 	asyncQueue.setAutoDelete(true);
 
 	KeyboardEvent::initKeycodes();
+
+	char hostname[256];
+	if (gethostname(hostname, 256))
+		hostname[0] = 0;
+	desktopName = QString(i18n("%1@%2 (shared desktop)")).arg(KUser().loginName()).arg(hostname);
 }
 
 RFBController::~RFBController()
@@ -395,6 +401,8 @@ void RFBController::startServer(int inetdFd, bool xtestGrab)
 	server->newClientHook = newClientHook;
 	server->passwordCheck = passwordCheck;
 
+	server->desktopName = desktopName.latin1();
+
 	if (!myCursor)
 		myCursor = rfbMakeXCursor(19, 19, (char*) cur, (char*) mask);
 	server->cursor = myCursor;

krfb/rfbcontroller.h

@@ -169,6 +169,8 @@ private:
 	XUpdateScanner *scanner;
 	ConnectionDialog dialog;
 
+	QString desktopName;
+
 	rfbScreenInfoPtr server;
 
 	XImage *framebufferImage;

srvloc/kuser.cpp

@@ -49,8 +49,8 @@ public:
 };
 
 
-KUser::KUser() {
-	fillPasswd(getpwuid(getuid()));
+KUser::KUser(bool effective) {
+	fillPasswd(getpwuid(effective ? geteuid() : getuid()));
 }
 
 KUser::KUser(long uid) {
@@ -61,6 +61,28 @@ KUser::KUser(const QString& name) {
 	fillPasswd(getpwnam(name.latin1()));
 }
 
+KUser::KUser(const KUser &user) {
+	d = new KUserPrivate(user.uid(),
+			     user.loginName(),
+			     user.fullName());
+}
+
+KUser& KUser::operator =(const KUser& user) {
+	delete d;
+	d = new KUserPrivate(user.uid(),
+			     user.loginName(),
+			     user.fullName());
+}
+
+bool KUser::operator ==(const KUser& user) {
+    if (isValid() != user.isValid())
+	return false;
+    if (isValid())
+	return uid() == user.uid();
+    else
+	return true;
+}
+
 void KUser::fillPasswd(struct passwd *p) {
 	if (p) {
 		QString fn(p->pw_gecos);
@@ -87,6 +109,10 @@ long KUser::uid() const {
 		return -1;
 }
 
+bool KUser::isSuperUser() const {
+	return uid() == 0;
+}
+
 QString KUser::loginName() const {
 	if (d->valid)
 		return d->loginName;

srvloc/kuser.h

@@ -36,15 +36,22 @@ struct passwd;
  *
  * @author Tim Jansen <tim@tjansen.de>
  * @short Represents a user on your system
+ * @since 3.2
  */
 class KUser {
 
 public:
   /**
    * Creates an object that contains information about the current user.
-   * (As returned by getuid(2)).
+   * (as returned by getuid(2) or geteuid(2)).
+   * @param effective if true, returns the effective user. If false, the 
+   *        real user will be returned. The difference is that when the 
+   *        user uses a command like "su", this will change the effective 
+   *        user, but not the real user. Use the effective user when 
+   *        checking permissions, and the real user for displaying
+   *        information about the user
    */
-  KUser();
+  KUser(bool effective = false);
 
   /**
    * Creates an object for the user with the given user id.
@@ -61,6 +68,24 @@ public:
    */
   KUser(const QString& name);
 
+  /**
+   * Copy constructor.
+   * Makes a deep copy.
+   */
+  KUser(const KUser &user);
+
+  /**
+   * Assignment operator.
+   * Makes a deep copy.
+   */
+  KUser& operator =(const KUser& user);
+
+  /**
+   * Two KUser objects are equal if @ref isValid() and the uid() are
+   * identical.
+   */
+  bool operator ==(const KUser& user);
+
   /**
    * Returns true if the user is valid. A KUser object can be invalid if 
    * you created it with an non-existing uid or name.
@@ -74,6 +99,12 @@ public:
    */
   long uid() const;
 
+  /**
+   * Checks whether the user it the super user (root).
+   * @return true if the user is root
+   */
+  bool isSuperUser() const;
+
   /**
    * The login name of the user.
    * @the login name of the user or QString::null if user is invalid