derwiki

Adding an audit log to your Rails app

If you have any sort of administrative interface on your web site, you can easily imagine an intruder gaining access and mucking about. How do you know the extent of the damage? Adding an audit log to your app is one quick solution. An audit log should record a few things:

• controller entry points with parameter values
• permanent information about the user, like user_id
• transient information about the user, like IP and user_agent

Using the Rails framework, this is as simple as adding a before_action to your admin controllers. Here’s a basic version that I’m using in production.

carols10cents

Dates in bold are weekends.

May

• 4-6 Railsconf Kansas City
• 6 - Stirtrek, likely
• 7-8 - !!Con, NYC
• 14-15
• 20-21 - Self.conference Detroit
• 21-22

jonasbjork

        real_ip_header X-Forwarded-For;
        real_ip_recursive on;
        set_real_ip_from 10.0.0.0/16;
        set_real_ip_from 54.192.0.0/16;
        set_real_ip_from 54.230.0.0/16;
        set_real_ip_from 54.239.128.0/18;
        set_real_ip_from 54.239.192.0/19;
        set_real_ip_from 54.240.128.0/18;
        set_real_ip_from 204.246.164.0/22;
        set_real_ip_from 204.246.168.0/22;

O-I

Note: As of Ruby 3.0.0, Hash#except is now [part][1] of the language. However, Ruby does not implement Hash#except!.

Sometimes I want to remove a specific key-value pair from a Ruby hash and get the resulting hash back. If you're using Rails or ActiveSupport you can accomplish this using Hash#except:

hash = { a: 1, b: 2, c: 3 }
hash.except(:a)     # => { b: 2, c: 3 }

# note, the original hash is not modified
hash # => { a: 1, b: 2, c: 3 }

wkjagt

#How I built an audio book reader for my nearly blind grandfather

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Last year, when visiting my family back home in Holland, I also stopped by my grand-parents. My grand-father, now 93 years old, had always been a very active man. However, during the presceding couple of months, he'd gone almost completely blind and now spent his days sitting in a chair. Trying to think of something for him to do, I suggested he try out audio books. After finally convincing him -- he said audio books were for sad old people -- that listening to a well performed recording is actually a wonderful experience, I realized the problem of this idea.

####The problem with audio devices and the newly blind. After my first impulse to jump up and go buy him an

seratch

access_key_id: xxx
secret_access_key: yyy

nazgob

# you have ctags but it does not work...
$ ctags -R --exclude=.git --exclude=log *
ctags: illegal option -- R
usage: ctags [-BFadtuwvx] [-f tagsfile] file ...

#you need to get new ctags, i recommend homebrew but anything will work
$ brew install ctags

#alias ctags if you used homebrew
$ alias ctags="`brew --prefix`/bin/ctags"