In JSP / HTML, I want to restrict the size of file being uploaded.
<input type="file" name="myfile"/>
If the user trying to upload a file size bigger than some value say 5MB, i want to give mesage to the user. I don't want to wait till the file gets uploaded to server and then validate the file size. I am looking for client side validation. Can it be done using scripting language or any other way?
Need a solution for this in Internet Explorer. I got a solution using ActiveX control:
var myFSO = new ActiveXObject("Scripting.FileSystemObject");
var filepath = document.getElementById('myfile').value;
var thefile = myFSO.getFile(filepath);
var sizeInBytes = thefile.size;
But ActiveX controls are not allowed in our application. Is there any alternative way for this?
I'm trying to put in place a file upload validation check. So at the client-side, the User selects a file. Before uploading, at the GUI, if the file exceeds an imposed limit, it will prompt the User that it exceeds the permitted size for upload.
And if it is within the permitted size, the full file path of the file to be uploaded will then be obtained and then used for the actual upload to the Server.
My program is built on EXTJS and Java, running using Tomcat. Browser restricted to Internet Explorer 7 only.
I have used ASP.net 1.1. In that application user can upload the file(any printable document like doc/xls/ppt/pps/jpg/gif etc.,). The user allows to upload a max of 4MB.
But if the user uploads more than 4MB I'll issue a msg. But in slow network, the user needs to wait for much time to upload and even get error msg.
I want to stop from client side itself. Once the user selects the file to upload it shud b checked frm Javascript.
* Is there any way to do achieve this? * The user should not change security settings in browser, if u suggests some method. * If it is not possible/meaningful then please tell me the reasons very clearly. So I can stop searching. * Please note any printable document can be uploaded.
I have an upload file operation in the web application. UploadForm.jsp is the form, and UploadAction.jsp is the form processing. The web server is Websphere.
How do i restrict files types that can be accessed when using the input element type file...like the one used when uploading..how do i restrict it to certain files with given file extensions?
Basically am working on the travel booking site,i written the lot of ajax scripts , so am little bit fear of that ajax ,becoz if some one tried to access anonymously So i dont want to user access or takeing my javascript fileTell me how to restrict the use get my javascript filecouple of days back i saw on site, in the i take that site js url , and when i typed on the Browser , the system say , you cant view this URL
If I have an image upload box on my page and I wanted to check the image either after selected or before the form is submitted to import it, is there a line or command I can use to return the size in pixels(width*height)...
I've seen it done and I'm assuming jscript has something to offer here but my googling has come up a bit short so I'm not too sure where to begin..
How to limit file size before uploading it? This script works fine, but you have to configure first your browser to make the alert window appear. Which is not good at all This script only runs in IE6/7/8.
function IELimmit(calculate)
How to make the alert window appear without any browser configurations?
I have a problem with the latest version of the jQuery Form Plugin (2.80). To be more precise, I guess I am doing something wrong, and with an older version (2.67) somehow it didn't matter.With the old version, the file was uploaded without problems. Now Firefox opens a new Tab on clicking the submit button and nothing is done. Chrome doesn't open a new tab, but also nothing happens. In Wireshark I can see that there is no file attached in the POST message with the older version, the file was sent.My first guess was that my file handling on the server side is erroneous - but on the other hand, when there is no file attached, what should I handle there?
I developed a web application and it is working fine, except for one issue. The application includes uploading files from a JSP to my servlet, and the issue is that i would like to have a limit for the uploaded files on the client side (before actually uploading it).
I investigated alot and found some ways like changing my JSPs to PHPs, which is not feasable for my application. I would also like to add that using the Flash component ("<object>") for uploading is not feasable also at this time. Using ActiveX does not work also (for some security issues in javascript, it can not access the system information, also ActiveX works only on IE).
I would like to add that I have my application running on Oracle application Server, JSPs for displaying the forms, MultiPart Java API for getting the form input values and files to my servlet and everything is developed in JAVA.
Either by limiting the file size or the limiting the whole request size sent to the servlet.
I have a form with three Input File form objects in which the user can add image files. But I am worried about the problems these controls can lead, because to check the file size the server needs to receive the entire file, so serious problems may happen, for example:
1. Malicious user trying to collapse the website sending big files.
2. Users that have not seen the warning “Maximum size: 100 KB� for each image, and try to send three image files consisting in 1,5 MB each one. These users will have a bad experience waiting one hour or more to upload the images, and after that receive an alert saying “Oooops! Your image files are too big.� And also, web server will waste an important amount of resources. The same case with 100 users at the same time can be a nightmare!
I have been searching a way to check the file size on client side without having to force user to install anything, but I think that there isn’ t nothing to do with javascript. But I found an interesting PHP article that explains a way to do it with this server side language. The technique consists in:
“A hidden field (measured in bytes) that precede the file input field, and its value is the maximum filesize accepted. This is an advisory to the browser, PHP also checks it. This form element should always be used as it saves users the trouble of waiting for a big file being transferred only to find that it was too big and the transfer failed. Code:
I implemented Malsups jquery form and use it for ajax file uploads. Works fine in FF, but in IE as soon as the ajax has completed the upload IE gives me a File Download box - Security warning. If I click on save it save thereturnedJson object (I do JS call onsuccessto get a file list and display it). If I click cancel or save on the popup has same effect the file still gets uploaded but just looks ugly.
How can I get rid of this? All coming form the same domain, calling from the same domain. This is on a python django project and I am testing it on the dev server.
Its pretty basic jquery nothing to exciting, don't get why IE would cause.
I know that the input "file" type can't be customized very well using css, so I figured I might try to make my own with javascript. The only problem is, I don't know too much about javascript. point me in the right direction on how to make my own custom file upload box in javascript that works the same way as the default one works (so I don't have to edit my PHP coding). Also, heres something I'd like to achieve: [URL]
I am wanting to simplify a page that I'm writing... the guts behind the page is PHP and wondering if it's possible to upload a photo in one click. How would I approach having the browsed file detected once it's populated into the form field and have it auto uploaded? Can this be done?
This Scripts allows you to upload files using AJAX (I'm not an expert). The site claims it's the best way to upload files out there, and the file size is only 1 kb.
I couldn't get it to work for me. I downloaded the files to my computer, and opened the index file with my browser. It doesn't work (the demo on their site does); IE doesn't show any error messages or anything, and FF shows a single word that might be treated as an error notifier: 'undefined'. Does this thing even work? If it does, could anyone please give me detailed steps on how to using it on my site? Code:
I've created a PhP page(Main) which will list records and a link to change their "thumbnail". Clicking on it will open a "pop-up" which will present a "File input" box and when user select a file to upload, this popup-page will send the form fields to a "process page" using AJAX. This Process page will upload the file and on success returns nothing else the error to the Ajax object in Popup. On return, the popup page will just reload the thumbnail on main page if success and closes itself.
I'm sure I've described what I wanted to do. Again, in brief: Main->(Opens Popup)->Popup->(Send file using AJAX)->Process Process->(Upload File & return result to)->Popup->(Reload img on Main and closes itself)->Main Below are my codes:
I have a page with 5 file inputs and 5 img tags i have everything working but preview of course changes all the img tags so no madder what browse button i choose all fixed img tags are updated with that preview.here is a code i found and messed with a little cant seem to figure out how to add a loop or something to update just the called tag
Java Script:
<script type="text/javascript"> <!-- Begin /***** CUSTOMIZE THESE VARIABLES *****/
[code].....
i went through this code file and the change does not appear to be where the change should ocur im sure its in the actually script need to loop through the images[] field i would think like i would in php The only thing i could think to do is paste the script code 5 more times and change each variable to 1 2 3 4 5 but then ill have a big php code page there would be a way to make this work i would think
I am creating a webpage using javascript and php where I need to upload a doc file or zip and read all the words in doc file. If it is zip I need to read all the words in all the doc files. I am trying to upload using file input but it does not show path of file only file name. How am I suppose to upload and read it.
I have a form that upload msword and pdf to a particular folder, pls how can I use javascript to whether the type and size of the intended upload files on the file field.
Websites like gmail.com use a file attachment system where the sender selects the file from his/her computer to be included within the message. The thing about this is that when the file is browsed upon there is NO browse input element to be shown.
I believe this somewhat prevents the user from messing around with the embedded filepath within the browse box (if they can mess it up). It also doesn't display such an ugly looking browsing box and it's file path.
