Force Response to Download File(s) to Desktop with Ruby?

Posted by viatropos on Stack Overflow See other posts from Stack Overflow or by viatropos
Published on 2010-04-05T06:29:33Z Indexed on 2010/04/05 6:43 UTC
Read the original article Hit count: 200

Filed under:

file-transfer

|

ruby

|

http

|

download

I was thinking about making a little crop/resize batch processor online, and wanted to know if there was a way for me to do the following:

upload image and specify dimensions
click "process" and remote app resizes image
image downloads automatically locally to wherever it was I uploaded it (say from my desktop), but with a new name (based on the time for example).

This would make it so I could host a free image processor that never stored any data other than tempfiles.

Is that possible? Something like Rails' send_file method, but I'm using Sinatra and am looking for something in pure ruby. What's the basic concept behind this?

What if I wanted to do this for multiple files? Åssuming I can get multiple files uploaded no problem, how can I download all of them automatically?

© Stack Overflow or respective owner

Related posts about file-transfer

The FTP Method of File Transfer

as seen on Ezine Articles - Search for 'Ezine Articles'
Most people don't know how they can transfer files to their website servers. Read the article to get informed on the mode of file transfer commonly known as FTP. >>> More
Slow network file transfer (under 20KB/s) on newly built x64 Win7

as seen on Super User - Search for 'Super User'
I am getting <20KB/s for local network file transfer. If I transfer a very small file (less than 100KB) it would start quickly then slow down to <20KB/s. all subsequently network file transfer would be slow, a reboot is needed to reset this. If I transfer a large file it would be stuck on calculating… >>> More
Closer look at the SOA 12c Feature: Oracle Managed File Transfer

as seen on Oracle Blogs - Search for 'Oracle Blogs'
The rapid growth of cloud-based applications in the enterprise, combined with organizations' desire to integrate applications with mobile technologies, is dramatically increasing application integration complexity. To meet this challenge, Oracle introduced Oracle SOA Suite 12c, the latest… >>> More
File transfer problems through VPN when Cisco IPS is enabled

as seen on Server Fault - Search for 'Server Fault'
We have a Cisco ASA 5510 firewall with the IPS module installed. We have a customer that we must connect to via VPN to their network to exchange files via FTP. We use the Cisco VPN client (version 5.0.01.0600) on our local workstations, which are behind the firewall and subject to the IPS. The VPN… >>> More
cordova 2.0.0 download file Android

as seen on Stack Overflow - Search for 'Stack Overflow'
I tried to use cordova 2.0.0 API FileTransfer().download() and i got 2 consecutive errors 1) download error source file 2) download error target file here is my code... function downloadMaterial() { var fileTransfer = new FileTransfer(); var serverURL = 'http://img.youm7.com/images/NewsPics/large/S2200921125437… >>> More

Related posts about ruby

Setting up Rails to work with sqlserver

as seen on Stack Overflow - Search for 'Stack Overflow'
Ok I followed the steps for setting up ruby and rails on my Vista machine and I am having a problem connecting to the database. Contents of database.yml development: adapter: sqlserver database: APPS_SETUP Host: WindowsVT06\SQLEXPRESS Username: se Password: paswd Run rake db:migrate… >>> More
marshal data too short!!!

as seen on Stack Overflow - Search for 'Stack Overflow'
My application requires to keep large data objects in session. There are like 3-4 data objects each created by parsing a csv containing 150 X 20 cells having strings of 3-4 characters. My application shows this error- "marshal data too short". I tried this- Deleting the old session table. Deleting… >>> More
Sinatra and XML POST request

as seen on Stack Overflow - Search for 'Stack Overflow'
I don't know is it my mistake or no. So i have that code: <code> post '/singin/get_token' do content_type :xml puts request.body.read puts xmlRequest xmlRequest = REXML::Document.new(request.body.read) ... </code> And when i post something like that: <code> <?xml… >>> More
how to change ruby path from /usr/bin/ruby to /usr/local/bin/ruby

as seen on Stack Overflow - Search for 'Stack Overflow'
reading around the various ruby install tutorials it's required to change path from /usr/bin/ruby to /usr/local/bin/ruby but i cant seem to be able to do it. Ultimately i want to install Ruby 1.9.2, should i uninstall 1.8.7 or what? i tried to install Ruby 1.9.2 with macports, the installation seemed… >>> More
strange bundler error: tar_input.rb:49:in `initialize': not in gzip format (Zlib::GzipFile::Error) o

as seen on Stack Overflow - Search for 'Stack Overflow'
i am getting a strange bundler error when running bundle pack with bundler 0.9.12 any ideas? (see pastie for a better formatted code: http://pastie.org/881328 ) /opt/ruby-enterprise-1.8.7-2010.01/lib/ruby/site_ruby/1.8/rubygems/package/tar_input.rb:49:in `initialize': not in gzip format (Zlib::GzipFile::Error) … >>> More