TB10.1 Example Applications: examples/Base/IPC/secureserver/secureclient.cpp Source File

00001 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
-00002 // All rights reserved.
-00003 // This component and the accompanying materials are made available
-00004 // under the terms of "Eclipse Public License v1.0"
-00005 // which accompanies this distribution, and is available
-00006 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
-00007 //
-00008 // Initial Contributors:
-00009 // Nokia Corporation - initial contribution.
-00010 //
-00011 // Contributors:
-00012 //
-00013 // Description:
-00014 // This client executable has all required capabilities to modify a file.
-00015 // Demonstrates all functionalities provided by the client side interface of the server.
-00016 //
-00017 
-00018 
-00019 
-00023 #include "secureclientandserver.h"
-00024 #include "secureclient.h"
-00025 
-00026 LOCAL_D CConsoleBase* console;
-00027 
-00028 void DoExampleL()
-00029         {
-00030         console->Printf(KTxtTestingCountServer);
-00031         
-00032         // Create a session.
-00033         RSecureSession countserv;
-00034         User::LeaveIfError(countserv.Connect());
-00035         
-00036         // Create a sub session.
-00037         RSecureSubSession counterA;
-00038         counterA.Open(countserv);
-00039 
-00040         // The user can choose to initialise the counter from the counter.dat file.
-00041         console->Printf(KTxtInitCounterAWith);
-00042         console->Printf(KTxtOption);
-00043         TUint8 inpOption = console->Getch();
-00044         if(inpOption == '1')
-00045                 {
-00046                 // This call will fail if the client executable does not have required file read capability.
-00047                 counterA.SetCounterFromFileL();
-00048                 console->Printf(KTxtInitFromFile,counterA.CounterValueL());
-00049                 }
-00050         else
-00051                 {
-00052                 // This is an invalid initialisation string. Hence, the counter will be initialised to zero.
-00053                 _LIT(KTxtValueString,"a2");
-00054                 console->Printf(KTxtValueString);
-00055                 // Set counter from the KTxtValueString string
-00056                 TInt err = counterA.SetFromString(KTxtValueString);
-00057                 if (err == ENonNumericString)
-00058                         {
-00059                         // Print an error message as the initialisation string, KTxtValueString is invalid (non numeric format).
-00060                         console->Printf(KTxtInitCounterFailed);
-00061                         }
-00062                 else
-00063                         {
-00064                         // Initialisation from string succeeded.
-00065                         console->Printf(KTxtInitCounterSucceeded);
-00066                         }
-00067                 }
-00068         RSecureSubSession counterB;
-00069 
-00070         // Create a sub session.
-00071         counterB.Open(countserv);
-00072 
-00073         // The user can choose to initialise the counter from the counter.dat file.
-00074         console->Printf(KTxtInitCounterBWith);
-00075         console->Printf(KTxtOption);
-00076         inpOption = console->Getch();
-00077         if(inpOption == '1')
-00078                 {
-00079                 // This call will fail if the client executable does not have required file read capability.
-00080                 counterB.SetCounterFromFileL();
-00081                 console->Printf(KTxtInitFromFile,counterB.CounterValueL());
-00082                 }
-00083         else
-00084                 {
-00085                 // A valid numeric string.
-00086                 _LIT(KTxtLegalString,"100");
-00087                 console->Printf(KTxtLegalString);
-00088                 // Set counter from the KTxtLegalString string.
-00089                 TInt err = counterB.SetFromString(KTxtLegalString);
-00090                 if (err == ENonNumericString)
-00091                         {
-00092                         // Print an error message as the initialisation string, KTxtValueString is invalid (non numeric format).
-00093                         console->Printf(KTxtInitCounterFailed);
-00094                         }
-00095                 else
-00096                         {
-00097                         // Initialisation from string succeeded.
-00098                         // Counter is initialised to 100.
-00099                         console->Printf(KTxtInitCounterSucceeded);
-00100                         }
-00101                 }
-00102         
-00103         // Wait for a key press.
-00104         console->Printf(KMsgPressAnyKey);
-00105         console->Getch();
-00106         console->ClearScreen();
-00107 
-00108         // Print values of both counters.
-00109         console->Printf(KTxtGetCounterAValue,counterA.CounterValueL());
-00110         console->Printf(KTxtGetCounterBValue,counterB.CounterValueL());
-00111 
-00112         // Wait for a key press.
-00113         console->Printf(KMsgPressAnyKey);
-00114         console->Getch();
-00115         console->ClearScreen();
-00116 
-00117         // Increase the counter value by 1 and print it.
-00118         _LIT(KTxt1,"\nIncrease counterA by default value (i.e. 1)..\n");
-00119         console->Printf(KTxt1);
-00120         counterA.Increase();
-00121         console->Printf(KTxtGetCounterAValue,counterA.CounterValueL());
-00122 
-00123         // Increase the counter by a value greater than 1 and print it.
-00124         _LIT(KTxt2,"\nIncrease counterA by 2..\n");
-00125         console->Printf(KTxt2);
-00126         // IncreaseByL operation undergoes a custom security check.
-00127         // If the value is greater than 10 and the SID is greater than 0x70fffff5, it fails.
-00128         counterA.IncreaseByL(2);
-00129         console->Printf(KTxtGetCounterAValue,counterA.CounterValueL());
-00130 
-00131         // Increase the counter value by 1 and print it.
-00132         _LIT(KTxt3,"\nIncrease counterB by default value (i.e. 1)..\n");
-00133         console->Printf(KTxt3);
-00134         counterB.Increase();
-00135         console->Printf(KTxtGetCounterBValue,counterB.CounterValueL());
-00136 
-00137         // Increase the counter by a value greater than 1 and print it.
-00138         _LIT(KTxt4,"\nIncrease counterA by 17..\n");
-00139         console->Printf(KTxt4);
-00140         // Fails if the SID is greater than 0x70fffff5
-00141         counterA.IncreaseByL(17);
-00142         console->Printf(KTxtGetCounterAValue,counterA.CounterValueL());
-00143 
-00144         // Wait for a key press.
-00145         console->Printf(KMsgPressAnyKey);
-00146         console->Getch();
-00147         console->ClearScreen();
-00148 
-00149         // Increase the counter by a value greater than 1 and print it.
-00150         _LIT(KTxt5,"\nIncrease counterB by 5..\n");
-00151         console->Printf(KTxt5);
-00152         counterB.IncreaseByL(5);
-00153         console->Printf(KTxtGetCounterBValue,counterB.CounterValueL());
-00154 
-00155         // Decrease the counter value by 1 and print it.
-00156         _LIT(KTxt6,"\nDecrease counterA..\n");
-00157         console->Printf(KTxt6);
-00158         counterA.Decrease();
-00159         console->Printf(KTxtGetCounterAValue,counterA.CounterValueL());
-00160 
-00161         // Decrease the counter by a value greater than 1 and print it.
-00162         _LIT(KTxt7,"\nDecrease counterB by 3..\n");
-00163         console->Printf(KTxt7);
-00164         console->Printf(KTxtGetCounterBValue,counterB.CounterValueL());
-00165         // DecreaseByL operation undergoes a custom security check.
-00166         // If the value is greater than 10 and the SID is greater than 0x70fffff5, it fails.
-00167         counterB.DecreaseByL(3);
-00168 
-00169         // Print the resource count of the server.
-00170         _LIT(KTxt8,"\nResource count is.. %d \n");
-00171         console->Printf(KTxt8,countserv.ResourceCountL());
-00172 
-00173         // The user can save the counter value to a file.
-00174         console->Printf(KTxtSaveToFile);
-00175         TUint8 sel = console->Getch();
-00176         if(sel == 'a')
-00177                 {
-00178                 // Save the value of the counter A.
-00179                 console->Printf(KTxtSelectCounter,sel);
-00180                 console->Printf(KTxtSaveCounter);
-00181                 // This call will fail if the client executable does not have required file write capability.
-00182                 counterA.SaveCounterL();
-00183                 }
-00184         else if(sel == 'b')
-00185                 {
-00186                 // Save the value of the counter B.
-00187                 console->Printf(KTxtSelectCounter,sel);
-00188                 console->Printf(KTxtSaveCounter);
-00189                 // This call will fail if the client executable does not have required file write capability.
-00190                 counterB.SaveCounterL();
-00191                 }
-00192 
-00193         // Close both sub sessions and the main session.
-00194         _LIT(KTxt9,"\nClosing counterA and then CounterB..\n");
-00195         console->Printf(KTxt9);
-00196         counterA.Close();
-00197         counterB.Close();
-00198         countserv.Close();
-00199         }
-00200 
-00201 GLDEF_C TInt E32Main()
-00202         {
-00203         __UHEAP_MARK;
-00204         CTrapCleanup* cleanup = CTrapCleanup::New();
-00205 
-00206         TRAPD(createError, console = Console::NewL(KTextConsoleTitle, TSize(KConsFullScreen,KConsFullScreen)));
-00207         if (createError)
-00208                 return createError;
-00209 
-00210         TRAPD(mainError, DoExampleL());
-00211         if (mainError)
-00212                 console->Printf(KTextFailed, mainError);
-00213         console->Printf(KTextPressAnyKey);
-00214         console->Getch();
-00215 
-00216         delete console;
-00217         delete cleanup;
-00218         __UHEAP_MARKEND;
-00219         return KErrNone;
-00220         }
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