Getting current directory from an applet

Hi. How can I get the current directory of my applet running on web without having to worry about permissin. I used the one below:
curDir = System.getProperty("user.dir");
but I get this error:
ava.security.AccessControlException: access denied (java.util.PropertyPermission user.dir read)
at java.security.AccessControlContext.checkPermission(Unknown Source)
any substiture for this? Thanks.

You should be using URLs or similar approaches, and avoiding File, which will
never work with an ordinary applet.
InputStream in = this.getClass().getResourceAsStream("file.txt");That assumes the txt file is in the same place as the current classes .class file.
For example, the same folder or that they are jarred in the same "folder" in the jar.
You can also use a URL directly:
URL url = ...
InputStream in = url.openStream();and you can construct that URL with the help of Applet methods getDocumentBase or getCodeBase:
URL url = new URL(this.getDocumentBase(), "file.txt");That assumes the txt file is in the same folder as the html file in which the applet is embedded.

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Claudia (guest) wrote:
: I am installing Oracle8 in Linux and that's the error that I am
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Dudes,
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Why are you getting it as a String? You should be getting it as a timestamp.
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Hello,
1.- Is there a global variable to get the actual (project, where is DSB and DSQ files) directory?
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Go to Solution.

Yes, use System Strings
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declare @cmd1 nvarchar(1000)
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Msg 156, Level 15, State 1, Line 1
Incorrect syntax near the keyword 'between'.
Msg 319, Level 15, State 1, Line 1
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The subject says it all.
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Found the solution, used getCodeBase.
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Getting mulitiple certs from card applet

Sir
Actually i got some confusion in the java card applet. But now i want to also store the CA cert on the card.
But on the process () method i just getting the instruction of get data and it returns the user certificate to the java card.
case INS_GET_DATA:
case INS_GET_RESPONSE:
sendCertificate( apdu );
break;
Now i will have two certificates on the card. And i will have to retrieve them explicitly. What should i do now ???

storing code is:
               case INS_PUT_DATA:
                    if ( buffer[ISO7816.OFFSET_P1] == 0x06)
                         storeUserCertificate(buffer, ISO7816.OFFSET_CDATA, offset[OFFSET_RECV], len);
                         if ((cla & 0x10) != 0x00)
                          offset[OFFSET_RECV] += len;
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                          // last command in the chain
                              userCertSize = (short) (offset[OFFSET_RECV] + len);
                          offset[OFFSET_RECV] = 0;
                    if ( buffer[ISO7816.OFFSET_P1] == 0x07)
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                         if ((cla & 0x10) != 0x00)
                          offset[OFFSET_RECV] += len;
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                              caCertSize = (short) (offset[OFFSET_RECV] + len);
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     private void storeCACertificate( byte[] source, short sourceOff, short destOff, short len )
           if ((short) (destOff + len) > FILE_SIZE)
                ISOException.throwIt(ISO7816.SW_FILE_FULL);
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/*********************************************************************/Getting code is:
               case INS_GET_DATA:
                    if( buffer[ISO7816.OFFSET_P1] == 0x06)
                         sendCACertificate(apdu);
                    else if( buffer[ISO7816.OFFSET_P1] == 0x07)
                         sendUserCertificate(apdu);
                    break;
     private void sendUserCertificate(APDU apdu)
     try{
        // work out how many bytes to send this time and how many will be left
        short remain = (short) (userCertSize - offset[OFFSET_SENT]);
        boolean chain = remain > MAX_APDU;
        short sendLen = chain ? MAX_APDU : remain;
        // Get ready to send
        apdu.setOutgoing();
        apdu.setOutgoingLength(sendLen);
        apdu.sendBytesLong(userCertBuffer, offset[OFFSET_SENT], sendLen);
        // Check to see if there are more APDU's to send
        if (chain) {
            offset[OFFSET_SENT] += sendLen; // count the bytes sent
            ISOException.throwIt(ISO7816.SW_BYTES_REMAINING_00); // indicate there are more bytes to come
        } else {
            offset[OFFSET_SENT] = 0; // no more bytes to send
     catch( APDUException ex)
          ISOException.throwIt(ex.getReason());
     private void sendCACertificate(APDU apdu)
          try
             // work out how many bytes to send this time and how many will be left
             short remain = (short) (caCertSize - offset[OFFSET_SENT]);
             boolean chain = remain > MAX_APDU;
             short sendLen = chain ? MAX_APDU : remain;
             // Get ready to send
             apdu.setOutgoing();
             apdu.setOutgoingLength(sendLen);
             apdu.sendBytesLong(caCertBuffer, offset[OFFSET_SENT], sendLen);
             // Check to see if there are more APDU's to send
             if (chain)
                 offset[OFFSET_SENT] += sendLen; // count the bytes sent
                 ISOException.throwIt(ISO7816.SW_BYTES_REMAINING_00); // indicate there are more bytes to come
             else
                 offset[OFFSET_SENT] = 0; // no more bytes to send
          catch( APDUException ex)
               ISOException.throwIt(ex.getReason());
     }And the output is:
CA certificate Endoding before sending:
In HEX (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)
total size of the CA certificate is: 647
In HEX (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)255 bytes received::Response from card (cert):28416::6f00
java.security.cert.CertificateException: Could not parse certificate: java.io.EOFException
     at sun.security.provider.X509Factory.engineGenerateCertificate(X509Factory.java:109)
     at java.security.cert.CertificateFactory.generateCertificate(CertificateFactory.java:305)
     at smarcard.host.app.SmartCardHostApp.getCACertificate(SmartCardHostApp.java:571)
     at smarcard.host.app.SmartCardHostApp.main(SmartCardHostApp.java:676)
Caused by: java.io.EOFException
     at java.io.DataInputStream.readFully(DataInputStream.java:180)
     at java.io.DataInputStream.readFully(DataInputStream.java:152)
     at sun.security.util.DerValue.init(DerValue.java:374)
     at sun.security.util.DerValue.<init>(DerValue.java:302)
     at sun.security.provider.X509Factory.engineGenerateCertificate(X509Factory.java:104)
     ... 3 moreEdited by: Muhammad Umer on Apr 29, 2011 3:16 PM

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