This is an extraction of the auto_link method from rails. The auto_link
method was removed from Rails in version Rails 3.1. This gem is meant to
bridge the gap for people migrating.
By default auto_link returns sanitized html_safe strings. This behaviour can
be overridden by setting the :sanitize option to false (thus making it
insecure if you don't have the content under control).
Add this line to your application's Gemfile:
gem 'rails_autolink'And then execute:
$ bundle installrequire 'rails_autolink'
auto_link("Go to http://www.rubyonrails.org and say hello to david@loudthinking.com")
# => "Go to <a href=\"http://www.rubyonrails.org\">http://www.rubyonrails.org</a> and
# say hello to <a href=\"mailto:david@loudthinking.com\">david@loudthinking.com</a>"auto_link("Visit http://www.loudthinking.com/ or e-mail david@loudthinking.com", :link => :urls)
# => "Visit <a href=\"http://www.loudthinking.com/\">http://www.loudthinking.com/</a>
# or e-mail david@loudthinking.com"auto_link("Visit http://www.loudthinking.com/ or e-mail david@loudthinking.com", :link => :email_addresses)
# => "Visit http://www.loudthinking.com/ or e-mail <a href=\"mailto:david@loudthinking.com\">david@loudthinking.com</a>"## By default, HTML tags are sanitized to protect from malicious code
auto_link("Go to http://www.rubyonrails.org <script>Malicious code!</script>")
# => "Go to <a href=\"http://www.rubyonrails.org\">http://www.rubyonrails.org</a> "
## Use the :sanitize => false option to prevent sanitization
auto_link("Go to http://www.rubyonrails.org <script>alert('Script!')</script>", :sanitize => false)
# => "Go to <a href=\"http://www.rubyonrails.org\">http://www.rubyonrails.org</a> <script>alert('Script!')</script>"post_body = "Welcome to my new blog at http://www.myblog.com/. Please e-mail me at me@email.com."
auto_link(post_body, :html => { :target => '_blank' }) do |text|
truncate(text, :length => 15)
end
# => "Welcome to my new blog at <a href=\"http://www.myblog.com/\" target=\"_blank\">http://www.m...</a>.rails>3.1