I am trying to allow the user to download a file.
When the file is downloaded it is displayed in the browser window instead of downloading it.
Does anyone know of a way to get the iPhone to download files instead of viewing them.
Also all the code that I have tried works great on Android Devices.
Thanks.
You can't. Apple have deliberately prevented things like this to protect their iOS from hacks and malware; you have no access (unless you are a developer, in which case its restricted) to the handsets integrated data storage.
Are you writing a program that downloads an image, or trying to do this as a user?
If you're writing a program, you can only download files to a limited number of locations. Your app's documents directory is the most obvious choice.
You will need to create an NSURLRequest, and then an NSURLConnection, and then implement a number of delegate methods to handle the incoming data. Then you'll need to use NSFileManager methods to write the data to a file.
Related
I Want to Stream a file (mp4) with a flash player, but i want to hide or block the direct link..i've tryed many things but none of these worked, so i'm asking if is possible do this..thanks you :)
If your server can run it, then your client can extract the video too. There are several tools for that. You could separate the file in different parts or use different obfuscation technologies, but that would, as said, serve no point, except for stopping some manual downloading.
Summary: If client can view it, he can also download it.
Update:
You could, however, make it harder by using something like getVideo.php?id=1 as URL where you check if the script is being ran directly to ensure that the user isn't visiting the page (and therefore trying to access the video source) directly.
In your page that should be run:
define('APP', 'MyApplication');
And in the getVideo.php:
if(!defined('APP')){
die("No direct access is allowed.");
}
I'm building a web server out of a spare computer in my house (with Ubuntu Server 11.04), with the goal of using it as a file sharing drive that can also be accessed over the internet. Obviously, I don't want just anyone being able to download some of these files, especially since some would be in the 250-750MB range (video files, archives, etc.). So I'd be implementing a user login system with PHP and MySQL.
I've done some research on here and other sites and I understand that a good method would be to store these files outside the public directory (e.g. /var/private vs. /var/www). Then, when the file is requested by a logged in user, the appropriate headers are given (likely application/octet-stream for automatic downloading), the buffer flushed, and the file is loaded via readfile.
However, while I imagine this would be a piece of cake for smaller files like documents, images, and music files, would this be feasible for the larger files I mentioned?
If there's an alternate method I missed, I'm all ears. I tried setting a folders permissions to 750 and similar, but I could still view the file through normal HTTP in my browser, as if I was considered part of the group (and when I set the permissions so I can't access the file, neither can PHP).
Crap, while I'm at it, any tips for allowing people to upload large files via PHP? Or would that have to be don via FTP?
You want the X-Sendfile header. It will instruct your web server to serve up a specific file from your file system.
Read about it here: Using X-Sendfile with Apache/PHP
That could indeed become an issue with large files.
Isn't it possible to just use FTP for this?
HTTP isn't really meant for large files but FTP is.
The soluton you mentioned is the best possible when the account system is handled via PHP and MySQL. If you want to keep it away from PHP and let the server do the job, you can protect the directory by password via .htaccess file. This way the files won't go through the PHP, but honestly there's nothing you should be worried about. I recommend you to go with your method.
Hey just a quick question for anyone who has done this. I want to create a video tube site. I have done file uploads before but was wondering if anyone could give me suggestions on what I am planning to do.
The way I am planning is to have a folder in my web directory and to upload videos into the folder after virus scanning and checking mime. The video will then be converted and compressed using FFMPEG into flv.
I will change the name and store the video reference id in mysql so the file name can be fetched and served.
I will serve the files using HTTP_Download to a flash player
$dl = new HTTP_Download();
$dl->setFile("$path");
$dl->setContentDisposition(HTTP_DOWNLOAD_ATTACHMENT, "$path");
$dl->setContentType('video/flv');
$dl->send();
Anyone have any suggestions? Is it a good idea to put all videos in one directory?
You may want to consider a Java based uploader as PHP can run into timeout problems on large uploads.
Also do you FFMPEG processing as a CRON job not at upload as it takes a long time.
Look in something like Wowza Streaming Server to serve the videos. Allows streaming and everything is above the root. I name each video with a UID and send a parameter to the Flash video player to decide which one to play.
Where and how you store them will largely depend on how secure they need to be (i.e. should people be able to access the files in the directory directly? or should it be stored more securely than that?)
If direct access is fine, then putting them all in one folder is okay. If not, then you may want to obscure folder names, store them in a secure Database, or in a folder that is not accessible outside of the server.
Also, I'm hoping you're aware of the massive amounts of storage space and bandwidth such a service will consume? I hope you have a scaled solution ready to deploy if you're really serious about this..
I have a flash .swf file that I embed on my webpage. On my server I have the .swf file and multiple image folders. I would like to load every file in one of those folders into the flash slideshow. How should I go about doing this? I tried used Air but it doesn't work on my system as an application so I doubt it will work online. Eventually I plan on making a menu where you can select different folders to display and since they are of different sizes, a foreach loop would be optimal. Keeping a txt file with the number of images is also possible if theres a way to read that in, but I would prefer the more dynamic approach. I am working towards using php for the website if that helps find a solution.
Thanks,
-Mike
Also my slideshow works great online currently but i have to hardcode in the number of files.
I would suggest to have a PHP script on your server that takes care of parsing those folders, and return the list of files to Flash (with a valid public URL).
Basically at your application startup, you would call the PHP script to retrieve the full list of file (XML is a good format to be returned, or AMF if you have a lot of folders/files).
After all you have to do is manipulate that data to load whatever folder/files the user is willing to see.
Just for your information, Flash doesn't have access to the Filesystem, so it's impossible to parse folders directly from Flash. (However It is possible with an Air Application)
I wish my users could select a directory from their PC and upload all files from this directory, so they could upload whole album(directory) instead of uploading every single file separately.
I would like to ask you if this is somehow possible using PHP or JavaScript and without using any framework.
thank you
First of all, PHP can't do anything to the user's local computer. Since it never runs there (unless the user's computer is the server also).
JavaScript runs on the user's local computer but isn't setup to handle things like this.
Java and Flash runs on the user's computer and can be setup to do exactly this.
Look at SWFUpload. I highly recommend it.
And if you want Java, check out RadUpload. The lite edition is free.
A thing to note, what these Flash and Java solutions both do is accept a file selection from the user and then send that to a PHP script which does the actual uploading.
It would probably make more sense for them to upload a .zip containing multiple images - which is possible in PHP.
I do not think it is possible as you describe it. Create a small utility which they can run on their PC that will do the job. Also check out how Facebook upload image works. They upload dozens of images at the same time.
Not possible using purely php/javascript. However, take a look at http://www.element-it.com/JavaPowUpload.aspx, it is a java-based file uploader that allows you to completely hide the interface, and, if you wish, power the whole interface via javascript. However, it is not free, perhaps not suitable for a personal project.
This may not meet your requirement of Javascript, but if you wish you could build your uploader object as an activex object and use CURL to actually perform the upload or do it as a Java applet.
I had built a Java applet based uploader for a client and I found resources on line and used that as my base for building the uploader.
SWFUpload, as mentioned in one of the answers you received is a good one.