Comments for blog.andrewbruce.net http://blog.andrewbruce.net Ruby on Rails for breakfast, lunch and dinner, with some Amazon AWS snacks and lots of RSI Wed, 18 Jan 2012 09:29:53 +0000 hourly 1 http://wordpress.org/?v=3.2.1 Comment on Using Alt Gr to switch windows in Ubuntu by Daniel C http://blog.andrewbruce.net/using-alt-gr-to-switch-windows-in-ubuntu#comment-193 Daniel C Wed, 18 Jan 2012 09:29:53 +0000 http://blog.andrewbruce.net/?p=98#comment-193 If you have more than one layout set, define it in the following way: xmodmap -e 'keycode 108 = Alt_R Alt_R Alt_R' To make the right alt work on your secondary layout as well. Another very useful command that might help you: xmodmap -pke It prints the full list of keycodes definitions. If you have more than one layout set, define it in the following way:

xmodmap -e ‘keycode 108 = Alt_R Alt_R Alt_R’

To make the right alt work on your secondary layout as well.

Another very useful command that might help you:
xmodmap -pke

It prints the full list of keycodes definitions.

]]> Comment on Uploading directly to Amazon S3 from a Rails application by Marco Antonio http://blog.andrewbruce.net/upload-direct-to-amazon-s3-from-rails#comment-178 Marco Antonio Sat, 05 Nov 2011 01:44:11 +0000 http://blog.andrewbruce.net/?p=40#comment-178 Yeah, you'r right, I haven't realized those parameters by the time I asked. Thanks. Yeah, you’r right, I haven’t realized those parameters by the time I asked. Thanks.

]]> Comment on Uploading directly to Amazon S3 from a Rails application by Andrew http://blog.andrewbruce.net/upload-direct-to-amazon-s3-from-rails#comment-177 Andrew Fri, 04 Nov 2011 09:47:34 +0000 http://blog.andrewbruce.net/?p=40#comment-177 I recently refactored the code to allow setting of custom classes for storage, queuing and and so on. See the Advanced section in the new config file: https://github.com/camelpunch/ungulate/blob/master/config/ungulate.rb You'd need to set a config.queue lambda. For an example, see the default setting in https://github.com/camelpunch/ungulate/blob/master/lib/ungulate.rb I recently refactored the code to allow setting of custom classes for storage, queuing and and so on. See the Advanced section in the new config file: https://github.com/camelpunch/ungulate/blob/master/config/ungulate.rb

You’d need to set a config.queue lambda. For an example, see the default setting in https://github.com/camelpunch/ungulate/blob/master/lib/ungulate.rb

]]> Comment on Uploading directly to Amazon S3 from a Rails application by Andrew http://blog.andrewbruce.net/upload-direct-to-amazon-s3-from-rails#comment-176 Andrew Fri, 04 Nov 2011 09:44:07 +0000 http://blog.andrewbruce.net/?p=40#comment-176 When Amazon redirects the user to your success_action_redirect URL, it includes a few parameters: bucket, key and etag. You can store the key in your database for future retrieval from S3. When Amazon redirects the user to your success_action_redirect URL, it includes a few parameters: bucket, key and etag. You can store the key in your database for future retrieval from S3.

]]> Comment on Uploading directly to Amazon S3 from a Rails application by Andrew http://blog.andrewbruce.net/upload-direct-to-amazon-s3-from-rails#comment-175 Andrew Fri, 04 Nov 2011 09:38:03 +0000 http://blog.andrewbruce.net/?p=40#comment-175 Yes, it does. But, I'll re-iterate: the examples aren't intended to show how to write secure code, but are simplified to show how to use the Ungulate gem. Yes, it does. But, I’ll re-iterate: the examples aren’t intended to show how to write secure code, but are simplified to show how to use the Ungulate gem.

]]> Comment on Uploading directly to Amazon S3 from a Rails application by Marco Antonio http://blog.andrewbruce.net/upload-direct-to-amazon-s3-from-rails#comment-174 Marco Antonio Wed, 02 Nov 2011 18:39:44 +0000 http://blog.andrewbruce.net/?p=40#comment-174 in the controller example, this line have a security issue: {'success_action_redirect' => create_user_avatar_url(current_user)} One can change the user id in the HTML, and perform operations as other user. I still am trying to figure out how to track the uploaded file from the S3 callback, without exposing sensitive data. Maybe use the encoded policy? in the controller example, this line have a security issue:
{‘success_action_redirect’ => create_user_avatar_url(current_user)}
One can change the user id in the HTML, and perform operations as other user.

I still am trying to figure out how to track the uploaded file from the S3 callback, without exposing sensitive data. Maybe use the encoded policy?

]]> Comment on Uploading directly to Amazon S3 from a Rails application by Raphael Caldas http://blog.andrewbruce.net/upload-direct-to-amazon-s3-from-rails#comment-170 Raphael Caldas Wed, 26 Oct 2011 13:09:47 +0000 http://blog.andrewbruce.net/?p=40#comment-170 Thanks, Andrew! Thanks, Andrew!

]]> Comment on Uploading directly to Amazon S3 from a Rails application by Andrew http://blog.andrewbruce.net/upload-direct-to-amazon-s3-from-rails#comment-169 Andrew Wed, 26 Oct 2011 10:25:05 +0000 http://blog.andrewbruce.net/?p=40#comment-169 A snippet isn't going to help too much. I assume you'll be using a specific JavaScript library such as JQuery. I use YUI3 for Superhug, which is the site this gem was created for, and the JavaScript is quite specific to Superhug's needs. As a step in the right direction though, you can't nest forms within forms. You'll need to have the ungulate form separate to your data form, then use a library such as JQuery or YUI3 to upload the file using an iframe. In YUI3 this is a case of choosing the iframe transport with the io module, in JQuery you may need to use a plugin such as http://plugins.jquery.com/project/iframe-post-form, but I can't vouch for its quality. If you're not up to using an iframe, you could perhaps redesign your workflow to redirect the user somewhere once the upload has succeeded (using success_action_redirect). A snippet isn’t going to help too much. I assume you’ll be using a specific JavaScript library such as JQuery. I use YUI3 for Superhug, which is the site this gem was created for, and the JavaScript is quite specific to Superhug’s needs.

As a step in the right direction though, you can’t nest forms within forms. You’ll need to have the ungulate form separate to your data form, then use a library such as JQuery or YUI3 to upload the file using an iframe. In YUI3 this is a case of choosing the iframe transport with the io module, in JQuery you may need to use a plugin such as http://plugins.jquery.com/project/iframe-post-form, but I can’t vouch for its quality.

If you’re not up to using an iframe, you could perhaps redesign your workflow to redirect the user somewhere once the upload has succeeded (using success_action_redirect).

]]> Comment on Uploading directly to Amazon S3 from a Rails application by Raphael Caldas http://blog.andrewbruce.net/upload-direct-to-amazon-s3-from-rails#comment-168 Raphael Caldas Tue, 25 Oct 2011 20:29:24 +0000 http://blog.andrewbruce.net/?p=40#comment-168 Andrew, I'm sorry to bother you again, but could you point me out to a snippet showing how to implement the iframe technique you mentioned? Given my inexperience I really couldn't figure out what I need to do. I've posted<a href="https://gist.github.com/1314150" rel="nofollow">this gist</a> that shows how my form would ideally look like, in case it helps. Thanks and, once again, sorry to bother! Andrew,

I’m sorry to bother you again, but could you point me out to a snippet showing how to implement the iframe technique you mentioned?

Given my inexperience I really couldn’t figure out what I need to do.

I’ve postedthis gist that shows how my form would ideally look like, in case it helps.

Thanks and, once again, sorry to bother!

]]> Comment on Uploading directly to Amazon S3 from a Rails application by Raphael Caldas http://blog.andrewbruce.net/upload-direct-to-amazon-s3-from-rails#comment-167 Raphael Caldas Mon, 17 Oct 2011 17:55:03 +0000 http://blog.andrewbruce.net/?p=40#comment-167 Thanks, Andrew! I'll try the iframe method for some immediate relief and then dig a little deeper into your other proposed solution. Would be really exciting to contribute to Ungulate! I must warn you though that I'm an inexperienced programmer and you may come in contact with some ugly code ;) Cheers! Thanks, Andrew!

I’ll try the iframe method for some immediate relief and then dig a little deeper into your other proposed solution.

Would be really exciting to contribute to Ungulate! I must warn you though that I’m an inexperienced programmer and you may come in contact with some ugly code ;)

Cheers!

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