Please Help!!!

[Jimi Rock]

I need an applet to be signed in order to be able to give it permissions to read from the local file system and be able to upload the selected file ( I am using file chooser). what I need to know is that how to sign my applet (free certificate) using the easiest way. I don't want each client machine to have the files. so I want to use plug-in 1.3 because I knew that it is a new feature of this plug-in version. if any one have other suggestion , I will be grateful. Please provide me with the required steps that signs my applet!
Thanks,
Jimi.

[Simon Xu]

hi, Jimi,
Here is a piece of code you may use in your case. I use it with applet-java (socket commun) and it works.
You need copy program file\netscape\java\java40 into jdk\jre\\lib\ext.

try
{
try
{
PrivilegeManager.enablePrivilege ("UniversalFileAccess");
input = new BufferedReader(new FileReader(sourceFileString));
outputFile = new File(destFileString);
output= new BufferedWriter(new FileWriter(outputFile));
while ((line = input.readLine())!=null) {
output.write(line, 0, line.length());
output.newLine();
output.flush();
}
}
catch (SecurityException e)
{
System.out.println("Read/WriteFile\n: caught SecurityException");
return false;
}
catch (IOException ioe)
{
System.out.println("Read/WriteFile\n: caught IOException");
return false;
}
PrivilegeManager.revertPrivilege ("UniversalFileAccess");
}
catch(ForbiddenTargetException fte)
{
System.out.println("WriteFile\n: caught ForbiddenTargetException");
return false;
}
</code>

[Jimi Rock]

Thanks Simon,
but excuse me,you didn't mention any steps for doing the signning process.
Please tell me what your code represents? and where to add it?

[Jimi Rock]

Hi again,
sorry Simon,but what if I would like to use testing cert with netscape 4 or explorer 5. is it important to have plug-in 1.3? do you know if it is included in netscape 6 or not?
Thanks,
Jimi.

[Simon Xu]

hi, Jimi,

There are some posts in the forum regarding the steps to do the signning process. Just search this forum.
Simon

[Daniel Pearson]

Jimi,
Have you managed to get the file uploading? I'm trying to do the same thing and am having a tough time getting the applet to upload the file to the server. Any help would be greatly appreciated.
To create a signed applet:
Internet explorer requires a cabinet file (.cab), created using cabarc.
eg.
cabarc -r -p n c:\imageupload\imageuploadapplet.cab c:\imageupload\*.class
then sign the .cab file using signcode
eg.
signcode c:\imageupload\imageuploadapplet.cab
these tools are part of the Microsoft SDK available from the microsoft site.
Netscape however requires a signed jar file
so use the jar tool
eg.
jar cvf c:\imageupload\imageuploadapplet.jar imageupload\*.class
and the jarsigner tool
eg.
jarsigner -storepass pword c:\imageupload\imageuploadapplet.jar keyalias
you need to create a keystore first by using something like this...
keytool -genkey -alias "whateverYouWant"
then if you want to add another key you use
keytool -genkey -alias "anotherName" -keystore whateverYouCalledTheKeystore
these tools can be found in JDK 1.2

I think this should work
If the applet is for internet use, you might need to obtain a certificate from somewhere like verisign, so people know that the applet is authentic.
Daniel

[Jimi Rock]

Hi Daiel,
Sorry for late reply,Please provide me with extra info about your problem of file uploading using Applet.
I have signed my applet successfully but on "appletviewer" ,and it is able to upload files using servlet.
I don't know if you have taken a look on the "servlet and jsp" forum under the "Urgent" topic that was posted by me .
Regarding the signning applet process under Netscape, I want you to know that I have done the signning step by step , but it is not working .
I would be grateful if you can help. note that I am using Netscape 6 and a testing cert. the message that appears on netscape is "applet not inited" .
Thanks,
Jimi.

[Jimi Rock]

No comments ?
Please help , please!
Thanks...