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HTML interface for USB storage device
http://www.avian-gamers.net/forums/viewtopic.php?f=1&t=12169		 Page 1 of 1
Author:  Cyrus Rex [ Mon Jul 12, 2004 8:56 pm ]
Post subject:  HTML interface for USB storage device
I am wanting to create a HTML interface for my USB storage device.

Is there any code that would scan a folder and list each file in the folder as a link to the file?
Author:  iJasonT [ Mon Jul 12, 2004 9:37 pm ]
Post subject: 
this is pretty straight forward code but I am not sure if HTML can do it. You would need a dynamic language like PHP or ASP or even JSP.

The main reason is opening a folder is one thing but then looping a command and writing the file to a text link is a whole other thing.

the fopen and fclose command is a nice place to start some research on the topic. Just do a google on php+fopen
Author:  iJasonT [ Mon Jul 12, 2004 9:40 pm ]
Post subject: 
I should also note that the fopen command only works with the folder structure accessable via the HTML/PHP language so it would need to be within the Web folder.

If you want to look for folder on your standard HD then you are looking for a C or C+ or even PERL script
Author:  Cyrus Rex [ Mon Jul 12, 2004 10:13 pm ]
Post subject: 
What I want to do is have a web interface to organize my storage devices contents. I am wanting the file listing to be dynamic so that I do not have to do the html every time I add a new file.

-If I want to look at my resume, I go to the resume page and from there all the versions of my resume are listed. (I would have a resume folder holding all resumes)

-If I want to look at all my files for my CM 4200 class I go to that classes page, and from there all the files are listed that are in my CM 4200 folder.

Most things that I found so far ask for asp or something like that. Everythign seems to be server oriented.


I ran the following bit of code, but upon viewing it, I get a window that says I must allow the activeX Object to run... which is the error message on line 15 of the code.

Code:
<html>
<head>
    <script type="text/javascript">
    <!--
        var fsObj = null;
        var foldedToList = 'C:\\Windows\\System32';

        function listFiles() {
            try {
                fsObj = new ActiveXObject('Scripting.FileSystemObject');
            }
            catch (err) { }

            if (!fsObj) {
                alert('You must allow the ActiveX object to run!');
            } else {
                if (!fsObj.FolderExists(foldedToList)) {
                    alert('The folder:\n\n' + foldedToList + '\n\ndoes not exist!');
                } else {

                    // at this stage, we can list all files
                    var folderObj = fsObj.GetFolder(foldedToList);
                    var filesObj = new Enumerator(folderObj.files);
                    filesStr = '';
                    while (!filesObj.atEnd()) {
                        var tempFile = filesObj.item();
                        filesStr += '<a href="' + tempFile.Path + '">' + tempFile.Name + '</a><br>';
                        filesObj.moveNext();
                    }
                    document.getElementById('fileList').innerHTML = filesStr;
                }
            }
        }
    //-->
    </script>
</head>
<body onload="listFiles();">
    <div id="fileList"></div>
</body>
</html>


By no means am I bound to this code. I will use anything that works on my PC and the PCs at school.
Author:  Cyrus Rex [ Mon Jul 12, 2004 10:22 pm ]
Post subject: 
Ok dumb me... it is working now, but I need to refine it to the folders I need it to look in.

** I wonder if this ActiveX stuff will be blocked at school?
Author:  iJasonT [ Mon Jul 12, 2004 10:35 pm ]
Post subject: 
nice find. The good thing about Java is that is will run outside the server environment and look into files on your drive. I know almost nothing about Java but I may poke around the script to see how it works and if I can tweak it a bit.
Author:  Cyrus Rex [ Mon Jul 12, 2004 11:25 pm ]
Post subject: 
How can I make it look in the right place no matter what PC the USB Drive is plugged into????

The code is directed to the folder with this line:
Code:
var foldedToList = 'C:\\Windows\\System32';


For my PC, the removable USB drive is F:\ so as long as the code has the correct path it can display the folder contents. For example, right now I am testing it by looking at one of my web graphics folders. I am using the following which works fine on my PC:
Code:
var foldedToList = 'F:\\GUI\\images\\MainButons';


However on other PCs it may be a different drive letter. On my wife's it is E:\. Thus on her PC the code can't find the folder F:\\GUI\\images\\MainButons.

In html, when directing to images, the full path is not needed. You can just start with the folder you are in and leave out the preceding stuff such as
Code:
<img src="images/MainButons/MButton_Main_on.jpg" ....


Is there any way I can make my javascript work with out giving it the full path? Is there a way to do it like we do the image paths? If I did not have to give the full path, I may be able to get around the changing drive letter problem.
Author:  iJasonT [ Tue Jul 13, 2004 12:45 am ]
Post subject: 
with PHP this is a very easy thing to do, all I would do is make a drop down list that has A: B: C: D: E: F: G: H: and you could choose which to pass. Then it would use the Variable (Var) and substitue $drive for the chosen letter. But in Java I would have no way of knowing how to pass a Var, although I know it is possible.

One quick solution. I assume you have this HTML file on your flash card device? If so just make 4 or 5 files labels filesD filesE filesF etc and edit each file so that the drive relates to the fileX. Pretty clunky but effective for a short term fix.

Again, I just don't know Java so I am no help.
Author:  iJasonT [ Tue Jul 13, 2004 12:48 am ]
Post subject: 
BTW how did you get around the Active X error message?
Author:  Cyrus Rex [ Tue Jul 13, 2004 1:11 am ]
Post subject: 
I was getting the error when I was previewing the file in my html editor.... but when I view the file with my real browser it works fine.

On pages with the script, I get an activeX warning. I choose OK, then I get another warning window from my antiVirus stopping the script, but I choose to let it run... and everything works perfectly. Now I have the antivirus warning set to let this particular script pass without the warning.

Until I get the dynamic drive path problem fixed, I will be populating the drive will all my school stuff, and building the buttons for the school section of the site. Basically filling the thing up with all the files I know I will need, which are of the type that would be hard coded. So far it is moving along fast… but I am holding off on the hover script until tomorrow when I am not so tired.

Obbo will be getting up soon. I am hoping that he may know how to get around this dynamic drive path problem.
Author:  iJasonT [ Tue Jul 13, 2004 1:19 am ]
Post subject: 
ahh yes I opened it in IE just fine. I couldn't get it to work while viewing through Mozilla, my default browser.
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