Force download zip javascript

Force download and cache media files script

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Force download zip javascript

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Title: how to avoid file download popup Name: Mani Date: 2007-04-27 8:49:19 AM Comment: In my user screen I have view link, if I click this link it will go to servlet and open one word document. What was interesting was that if I had no.

Sometimes the simplest way is the best way. Should I mention that I didn't check it in IE. Now I need to simulate a click on the link. This is annoying to some people. Glad: MD Name: Juzer Date: 2011-09-01 9:49:43 AM Comment: Great Concise Code Title: Whispering after get this coding Name: S. So if the web page with the link on it is one level up or down, the path has to reflect that. Thank you, all who contributed to this.

Title: Problem with firefox Name: sudha Date: 2008-01-23 3:17:28 AM Comment: Great article - very useful - but in Firefox, the save dialog opens, and it saves the file but without a file extension! Instead, they will be handled by the browser itself or a corresponding plug-in. Please send your suggestions to kalaravi verinon. Client-side file downloading using JS and HTML5 Summary The download function is used to trigger a file download from JavaScript.

Force download and cache media files script - Title: Downloading Files Name: Saravan Pandian.

I've seen a number of methods to force file downloads using the PHP header function which, essentially, sends a raw HTTP header to the browser. Depending on your browser, some files won't be downloaded automatically. Instead, they will be handled by the browser itself or a corresponding plug-in. This is often an issue with PDF files, TXT files, CSV files, LOG files, multimedia files MP3, WAV, MOV, MPEG, AVI, etc. As a developer, being able to force the download of any type of file is extremely useful. To Force, Or Not To Force? In some cases it is appropriate while in others it is probably not. It has been a convenience the many times I have used it to push CSV files out to end users who wouldn't know enough to copy and paste the data from the browser window into a file and then save it. It is also handy for when you generate PDF files and want to push them to the user as a download rather than have it open up inside the browser window. Not only does this make the PDF easier for the user to download, it also provides consistency for the way downloads are handled regardless of what browser plug-ins the user has installed. Again, in some cases it is appropriate to force a download, in others it is not. The Force Download Script After rigorous browser testing and code tweaking, here is the script I ended up with. All of the unnecessary stuff has been stripped out and it has been simplified as much as possible. Users who are directed to the script will be prompted to download the appropriate file regardless of their browser and plug-in settings. The PHP readfile function reads files verbatim, including PHP files. This opens up a major security hole if you are passing the actual filename using GET or POST form data or anything else that the user can spoof. A curious user could easily gain access to sensitive database connection information or other system data by entering something like? You should always use some kind of identifier to prevent unauthorized access to sensitive information. Browser Issues Safari and Filenames Surprisingly, all of the force-download scripts I researched online failed to work properly in Safari. The download occurred, but the resulting file was named after the script i. If I renamed the downloaded file to its correct name, it would open just fine. This, however, was a terrible inconvenience. A bit of testing revealed the culprit. Caching Problems Many of the scripts I found included header calls to tell the browser not to use a cached version of the file. Caching wasn't an issue with any of the browsers I tested, but if it becomes problematic, add the following lines to the script above the call to readfile. Internet Explorer was not able to open this Internet site. The requested site is either unavailable or cannot be found. Please try again later. To get around this, whenever you are forcing a download over HTTPS append the following two lines of code to the force download script above the call to readfile.