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If the host in `default_url_options` is accidentally set with a protocol such as ``` host: "http://example.com" ``` then the generated url will have the protocol twice `http://http://example.com` which is not what the user intended. Likely they wanted to define a host `host: "example.com"` and a `protocol: "http://"` but did not know the convention. This may not the most common problem, but when it happens it can go undetected for a while. I accidentally added `http://` out of habit recently only to find all the links in my emails were broken after deploying a demo site to production. Rather than allow this accident go undetected, we can fix the problem in line by properly setting the protocol and host. I was able to find this related question on stack overflow: http://stackoverflow.com/questions/5878329/rails-3-devise-how-do-i-make-the-email-confirmation-links-use-secure-https-n where the answer was highly upvoted. This is based off of work in #7415 cc/ @pixeltrix ATP Action Mailer and Action Pack |
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= Action Pack -- From request to response Action Pack is a framework for handling and responding to web requests. It provides mechanisms for *routing* (mapping request URLs to actions), defining *controllers* that implement actions, and generating responses by rendering *views*, which are templates of various formats. In short, Action Pack provides the view and controller layers in the MVC paradigm. It consists of several modules: * Action Dispatch, which parses information about the web request, handles routing as defined by the user, and does advanced processing related to HTTP such as MIME-type negotiation, decoding parameters in POST, PATCH, or PUT bodies, handling HTTP caching logic, cookies and sessions. * Action Controller, which provides a base controller class that can be subclassed to implement filters and actions to handle requests. The result of an action is typically content generated from views. * Action View, which handles view template lookup and rendering, and provides view helpers that assist when building HTML forms, Atom feeds and more. Template formats that Action View handles are ERB (embedded Ruby, typically used to inline short Ruby snippets inside HTML), and XML Builder. With the Ruby on Rails framework, users only directly interface with the Action Controller module. Necessary Action Dispatch functionality is activated by default and Action View rendering is implicitly triggered by Action Controller. However, these modules are designed to function on their own and can be used outside of Rails. == Download and installation The latest version of Action Pack can be installed with RubyGems: % [sudo] gem install actionpack Source code can be downloaded as part of the Rails project on GitHub * https://github.com/rails/rails/tree/master/actionpack == License Action Pack is released under the MIT license: * http://www.opensource.org/licenses/MIT == Support API documentation is at * http://api.rubyonrails.org Bug reports and feature requests can be filed with the rest for the Ruby on Rails project here: * https://github.com/rails/rails/issues