Access Local Files

Hi !
I need to develop an applet which reads files from local directory
and send them to database.i know it has severe Security problems.Actually my system runs in browser.so how can i do that with or with out applets.Many e-mail clients do that actually i.e to upload files from local machine to web-server.what technology can be used
? This i need urgently for my project kindly lemme know.mail to [email protected]
ThanQ
Moulaali
Veritas,Pune

You need to sign your applet to get past the security restrictions: http://java.sun.com/docs/books/tutorial/jar/sign/index.html
? This i need urgently for my project kindly lemme
know.mail to [email protected]
When you ask question on a public forum, you get answers on the forum.

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How Can I Get A Flash Movie to Access Local Files

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He is a rookie flash programmer so I am trying to help him set up proper links to the files, so that the files will (hopefully) launch the proper local app and not a web browers. i.e. if the link points to a PDF, the Adobe Reader is launched; if the link is to a mov file, then QuickTime is launched....
Is there a way to do this? All the tutorials I have found all seem to expect the flash movie to be running on a web server, and as such do not work when running the movie off a CD.
Any help or suggestions would be grealy appreciated.
A response ASAP would also be greatly appreciated as the customer needs to deliver 200 CDs of the project for a presentation tomorrow morning - I have to create the CDs...
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Hi there,
Maybe you would want to use swfObject, i've been using it for
a long time now.
http://blog.deconcept.com/swfobject/
cheers

Reading files from local hard disk - Access Local Files Only

Hi All,
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Hi, thanks for the responses
I did some searching and found that the urlloader class is the right one for the job.
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When i drag and drop an image on my site. it gives the following error. "Unable to access local files due to browser security settings. To overcome this, follo"

I am using the firefox version 17 and when i drag and drop an image on my website. It gives me the following error.
Unable to access local files due to browser security settings. To overcome this, follow these steps: (1) Enter "about:config" in the URL field; (2) Right click and select New->Boolean; (3) Enter "signed.applets.codebase_principal_support" (without the quotes) as a new preference name; (4) Click OK and try loading the file again. Or go to the homepage for a link to the tutorial on how to do it.
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Thanks kumars ,
I have a specific drag and drop area on our website. This works fine for all earlier releases of Firefox after these security settings
"(1) Enter "about:config" in the URL field; (2) Right click and select New->Boolean; (3) Enter "signed.applets.codebase_principal_support" (without the quotes) as a new preference name; (4) Click OK and try loading the file again."
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Can firefox support "file:///" format to access local files (note 3 fw slashes) this works for IE but not firefox and is the format used in the "afghan war diary" from wikileaks

can firefox support "file:///" format to access local files (note 3 fw slashes) this works for IE but not firefox and is the format used in the "afghan war diary" from wikileaks

See http://kb.mozillazine.org/Links_to_local_pages_do_not_work

Accessing local files in Safari for Windows

I am trying to access local files, such as .doc and .pdf files. I have tried
file://server/dir/dir/file.pdf, and various numbers of slashes, but all result in Failed to open page messages.
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Chris

If you wish to view "local" files in any browser just drag the file icon to an empty browser window.
The "file:///blah/blah" stuff and a URL has ended for security issues.

Applet access local file

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how can the policy file be included?Applets use the java.policy wich is located in the jre/lib/security
(C:\Program Files\Java\jre1.5.0_04\lib\security)
There is a java.security where you can add or change the java.policy files to be
used
policy.url.1=file:${java.home}/lib/security/java.policy
After changing these files make sure the jre loads again, close all browsers
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Signing applets:
http://forum.java.sun.com/thread.jsp?forum=63&thread=524815
second post and reply 18 for the java class file using doprivileged
http://forum.java.sun.com/thread.jsp?forum=63&thread=409341
4th post explaining how to set up your own policy with your own keystore
Still problems?
A Full trace might help us out:
http://forum.java.sun.com/thread.jspa?threadID=656028

Can I access local files?

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http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/net/FileReference .html

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1. I want to plugin the applet into the JSP. That applet should access the local file system. How to enable this programmatically.
2. Is it is possible to embed a frame inside the JSP. If so how?
Thanks in advance..
K G Vinoth

1: If you want the applet to access the client's local file system you'll have to sign the applet. There is a tutorial some where on the java.sun.com that explains how to sign an applet.
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Is it possible to access local files with MIDP?

Hello everyone,
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Dumitru

Did you save the messages in a Personal Folder files (PST) or as individual messages on disk? The PST and MSG file formats are proprietary and might not be accessible outside of Outlook.
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Problems Accessing Local Files

Hi,
I'm sure this has been discussed before, but I'm havign problems accessing a file on the target machine's local filesystem. I've signed all my jars and added the all-permissions tag to the jnlp file. However, my code:
ClassLoader cl = getClass().getClassLoader();
InputStream is = cl.getResourceAsStream("c:/resources/testsuite.xml");
fails to find the file "testsuite.xml".
Is this a classpath issue? I've tried to add c:/resources to the class path but with no luck.
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Thanks

Try "file://c:/resources/testsuite.xml" instead. I
believe you are suppose to be passing in a valid URL
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to the user's local machine you don't really need to
rely on the class loader at all. It's just a normal
file, so you could create your File object and read it
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-- Remote SWFs may not access local files.

*** Security Sandbox Violation ***
Connection to file:///D|/AMIT%20DATA/Personel/STANDS%20PROJECT/productsimages.swf halted - not permitted from http://www.fltech.in/awg/app.swf
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you need to add a cross-domain permission file on your local server.

How to access local files of crashed macbook pro booted thru external harddrive

I am not able to see my macbook pro local data while booting it thru external harddrive (OS X marvericks)
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Sahil13gupta,
while booting from your external disk, open Finder’s Preferences, select its Sidebar tab, ensure that all of its “DEVICES” checkboxes have been checked, and close the Preferences window. If your internal drive doesn’t appear among the devices shown in the Finder sidebar, then you’ll need to hire a data recovery firm to recover the data on your internal disk — note that their services tend to be expensive. Purchasing an external disk to use as a regular backup destination is much less expensive than hiring a data recovery firm.

Applet accessing local files under Vista

I have a signed applet that accesses files on the client machine. This applet is not able to open files when running under Windows Vista (I get an "Access denied" message). I found that in C++ there is a function called GetTempPath, which returns a path to a directory where and OCX control can access files. So here is my question:
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Sorry, DrClap, but...
Post 1: "I have a signed applet that accesses files on the client machine. This applet is not able to open files when running under Windows Vista (I get an "Access denied" message)." While he mentions temp files/dirs, that is not, IMO the issue, because...
Post 6: "Under these OSs [XP, 2000], my applet uses a directory called c:\program files\mydir. This applet is not able to access files in the same directory under Windows Vista, access is denied in this case." The specified directory is not a "temp" dir as typically returned by the system parameters that I've ever seen, so I'm assuming he's using this explicitly. In which case, access is denied writing to it. In which case, it appears to be a signed applet permission issue.
While the java.io.tmpDir system param may be giving an issue to, that doesn't seem to be the key point in what I'm reading. Otherwise it's not written entirely clearly.

How to make applet access a local file in intranet?

I want to have my applet read from and write to a file on the user's PC. This is our company's intranet and security is not a concern so we don't want to go through the complicated certificate procedure.
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grant codeBase "10.150.20.100:7001/slfpweb/" {
permission java.io.FilePermission "C:\\tmp\\*", "read, write";
However, it does not work. Can someone tell me what is the simplest way to allow an applet to read/write a local file in intranet system?
Thank you very much!
Ming

I guess the reason you're still running into permission problem is that you have not addressed the required settings in the browser(s) that you're using.
On everyone's PC, the following must be done:
1) on IE, click Tools | Internet Options | Security . Under Trusted Sites, add your server's IP address. Under Local Intranet, reset it to Medium or Low and check to see if any of the relavant settings require attention (note that a Java Applet is equivalent to an ActiveX object in IE) . Finally, go into Java Custom Settings and make the appropriate changes.
2) on NN, to access local files, you can enable Codebase Principals by adding the following line to the user's pref.js file (look for it where NN is installed -- usually under C:\Program Files):
user_pref("signed.applets.codebase_principal_support", true);
I have also read Core Java and found that the authors have a way of over-simplifying everything and failure to adequately describe other factors that may potentially affect what they're describing.
V.V.
PS: Signing an applet with a self-signed certificate is not all that difficult. Here is a link to my file i/o applet that contains pertinent info that you might want to look into:
http://home.attbi.com/~aokabc/FileIO/FileIOdemo.htm

Access Local Files

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