i was wondering is there any good way to check a file size that is being uploaded to the server via a standart form, using Java Script?
i know this is easy to do using server side programing, but i need to do it somehow on the client side, before the file is being submitted...?
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'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 am using jquery Multifile upload plugin, I want to show the client a pop messages if he/she crosses certain size while uploading files..
<html>
<head>
<script src="/js/jquery.MultiFile.js" type="text/javascript" language="javascript" target="upload_target"></script>
<script>
[code]....
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've got a major headache with IE in that I have a support form that allows users to submit tickets with files which is then emailed off.
Using javascript, jQuery and PHP I have everything under control with all of our favourite browsers - but then comes along IE.
support.php
...
<!-- file -->
<div class="fileUploadEntry">
[code]....
Can JavaScript detect the size of an image file?
View 2 Replies View RelatedI have some links to files (.zip, .rar...) and i would like to get its size
could you say me how to do or give me some references?
I have developed an upload tool, that allows users to upload files (funny
that). The asp form object has a 'SizeLimit' property that can be set, to
prevent files being uploaded, that are too large. Is there a way in
Javascript, to interrogate the file size before the form is posted, so that
the validation can be done before trying to post the form.
The only information I can find, on file size, relates to images. But any
file can be uploaded through this tool, so I also need to determine the size
of other binary and text files.
I need to detect the size of a file entered via input type file. How do I do this? Also it should work on both IE and FireFox.
View 2 Replies View RelatedI know there are restrictions on the client side in this regard, but thought I would ask. Can you determine a files size on the client? I purchased one of those upload to server applications. But I do not want to send large files. Their application only allows me check the side after sending the file to the server (after the fact). I need to know the size before hand. Just like validating text in a textbox before submission, I want to check the file size on the client before submission. Is there any way to do this on the client?
View 1 Replies View RelatedI'm trying to make some kind of progress bar using AJAX and PHP.
I want to check the size of tmp file (before it moves to the destination dictionary) during it's being uploaded.
Is that possible to check the file size of tmp file that is being created when someone click on upload form button, before it's fully uploaded.
I noticed that you can do it only after the file is already uploaded so only after isset($_FILES['name_of_file']) will give the truth.
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?
<html>
This code is not working, i click the size button nothing is happen i checked ActiveXObject is not working i am using IE.
I want to do a check on whether the broswer has finished loading the jpeg before showing the jpeg file to the user. I wish to replace the jpeg with a loading progress bar gif image. How can i start off doing this script?
View 16 Replies View RelatedI have an HTML document with a static links, I want to display a files size next to what the documents are linking.
So,
/documents/myfile.zip - (3mb)
I have made directory listers in php, but can anybody do this in javascript?
Does anyone know ifjQuery plugin: Validation can check that a file being uploaded is no larger than say 1500k?
View 1 Replies View RelatedI 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.
In JSP / HTML, I want to restrict the size of file being uploaded.
If the size of file more than a specific size 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 need client side validation. Can it be done using scripting language or any other way?
I need a solution for this in Internet Explorer. There is already a solution I got using ActiveX control:
But ActiveX controls not allowed in our application. Is there any alternative way for this?
i want to check size of file before send to server by javascript (jquery). who can give me some idea about that.
View 10 Replies View RelatedI am usingjquery.validate plugin. from hereI am not so smart in jquery.My query is,File size should be validate before submitting, for example maximum file size 500 kb the validation error should be the same according to the form. Here is the url of demo, i already mentioned the jotform upload url with code inside the demo.[URL]
View 2 Replies View RelatedI 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.
//UploadForm.jsp
<FORM NAME="InputForm" ACTION="UploadAction.jsp" METHOD="POST"
enctype=multipart/form-data>
<input type="file" name="fileName">
//etc ...
</FORM>
After I deploy the application to the web server, if I upload a small
file size, it is fine.
But if I upload a huge file size more than 10MB, then it cannot even go
to UploadAction.jsp.
After 30 seconds, it has error "The page cannot be displayed" shown on
the web browser.
It cannot even go to UploadAction.jsp. But both UploadForm.jsp and
UnploadAction.jsp are in the same machine.
Interestingly, if I test in local machine, I can upload any file size
without problem. I don't have any hints now. any ideas?
All my font-sizes are set as relative sizes in CSS (large, medium, small,
x-small, etc). Let's say something is set in CSS to be xx-large, but a
visually impaired user wants it displayed even bigger. Can a script
determine an element's absolute size, *as it is being rendered by the
browser*, and then increment the element's font-size in absolute terms?
I'm attempting to make a web page that adapts to the size of your browser size when it maximized. Because I'm only 15 I'm not such a great programmer or coder. I've done my best with the resources I have though (Fluent in Lua and a natural ability to pick languages syntax up quickly)
Here is what I have so far, it doesn't work and it is starting to puzzle me. As it seems correct as I look at it. I'm sorry if this question show my ignorance. I try my best to hide it.
Some of it is Copy pasted from sources on Google. But only for educational purposes, I learn off reading, examining and testing out snippets.
I'm basically trying to get the max size of the window and resize the div accordingly.
where da boss wants our a large piece of our site to be fully dynamic and integrated on any screen size. This means changing font on size. Well I cam up with a solution, figured if no one has one better, then i'll share
[Code]..
I am new to Jquery mobile framework.I have an asp.net web application and I want to convert it into Jquery mobile framework.I have a datalist on an aspx page.The size of the datalist decreases according to the window size to certain extent after which the size of the datalist becomes constant and doesn't decrease with the window size.
View 2 Replies View Related