initial commit

.gitignore

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+*.gem
+.bundle
+Gemfile.lock
+pkg/*
+tmp/*

.rspec

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+--color
+--backtrace

.rvmrc

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+rvm use 1.9.2@letter_opener --create

Gemfile

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+source "http://rubygems.org"
+gemspec

Rakefile

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+require 'bundler'
+Bundler::GemHelper.install_tasks
+require 'rspec/core/rake_task'
+
+desc "Run RSpec"
+RSpec::Core::RakeTask.new do |t|
+  t.verbose = false
+end
+task :default => :spec

letter_opener.gemspec

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+Gem::Specification.new do |s|
+  s.name        = "letter_opener"
+  s.version     = "0.0.1"
+  s.author      = "Ryan Bates"
+  s.email       = "ryan@railscasts.com"
+  s.homepage    = "http://github.com/ryanb/letter_opener"
+  s.summary     = "Preview mail in browser instead of sending."
+  s.description = "When mail is sent from your application, Open Mail will open a preview in the browser instead of sending."
+
+  s.files        = Dir["{lib,spec}/**/*", "[A-Z]*"] - ["Gemfile.lock"]
+  s.require_path = "lib"
+
+  s.add_dependency 'launchy'
+  s.add_development_dependency 'rspec', '~> 2.6.0'
+  s.add_development_dependency 'mail', '~> 2.3.0'
+
+  s.rubyforge_project = s.name
+  s.required_rubygems_version = ">= 1.3.4"
+end

lib/letter_opener.rb

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+require "fileutils"
+require "digest/sha1"
+require "letter_opener/delivery_method"

lib/letter_opener/delivery_method.rb

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+module LetterOpener
+  class DeliveryMethod
+    def initialize(options = {})
+      @options = {:location => './letter_opener'}.merge!(options)
+    end
+
+    def deliver!(mail)
+      identity = Time.now.to_i.to_s + Digest::SHA1.hexdigest(mail.encoded)[0..6]
+      path = File.join(@options[:location], identity)
+      FileUtils.mkdir_p(path)
+      File.open(File.join(path, "index.html"), 'w') do |f|
+        template = File.expand_path("../views/index.html.erb", __FILE__)
+        f.write ERB.new(File.read(template)).result(binding)
+      end
+    end
+  end
+end

lib/letter_opener/views/index.html.erb

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+<style type="text/css">
+  #message_headers {
+    position: absolute;
+    top: 0px;
+    left: 0;
+    width: 100%;
+    height: 85px;
+    padding: 10px 0 0 0;
+    margin: 0;
+    background: #fff;
+    font-size: 12px;
+    font-family: "Lucida Grande";
+    border-bottom: 1px solid #dedede;
+    overflow: hidden;
+  }
+
+  #message_headers dl {
+    margin: 0;
+    padding: 0;
+  }
+
+  #message_headers dt {
+    width: 60px;
+    padding: 1px;
+    float: left;
+    text-align: right;
+    font-weight: bold;
+    color: #7f7f7f;
+  }
+
+  #message_headers dd {
+    margin-left: 70px;
+    padding: 1px;
+  }
+
+  #message_headers p.alternate {
+    position: absolute;
+    top: 0;
+    right: 15px;
+  }
+
+  #message_headers p.alternate a {
+    color: #09c;
+  }
+
+  pre#message_body {
+    padding: 10px;
+    word-wrap: break-word;
+  }
+
+  body {
+    margin-top: 96px;
+  }
+</style>
+
+<div id="message_headers">
+  <dl>
+    <dt>From:</dt>
+    <dd><%= mail.from %></dd>
+
+    <dt>Subject:</dt>
+    <dd><strong><%= mail.subject %></strong></dd>
+
+    <dt>Date:</dt>
+    <dd><%= Time.now.strftime("%b %e, %Y %I:%M:%S %p %Z") %></dd>
+
+    <dt>To:</dt>
+    <dd><%= mail.to %></dd>
+  </dl>
+
+  <% if false && mail.multipart? %>
+    <p class="alternate">
+      <% if body_part.content_type && body_part.content_type.match(/text\/html/) %>
+        <a href="<%= name %>.txt">View plain text version</a>
+      <% else %>
+        <a href="<%= name %>.html">View HTML version</a>
+      <% end %>
+    </p>
+  <% end %>
+</div>
+
+<pre id="message_body"><%= mail.body %></pre>

spec/letter_opener/delivery_method_spec.rb

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+require "spec_helper"
+
+describe LetterOpener::DeliveryMethod do
+  before(:each) do
+    location = File.expand_path('../../../tmp/letter_opener', __FILE__)
+    FileUtils.rm_rf(location)
+    Mail.defaults do
+      delivery_method LetterOpener::DeliveryMethod, :location => location
+    end
+    @location = location
+  end
+
+  it "saves text into html document" do
+    mail = Mail.deliver do
+      from    'foo@example.com'
+      to      'bar@example.com'
+      subject 'Hello'
+      body    'World!'
+    end
+    html = File.read(Dir["#{@location}/*/index.html"].first)
+    html.should include("Hello")
+    html.should include("World!")
+  end
+end

spec/spec_helper.rb

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+require 'rubygems'
+require 'bundler/setup'
+Bundler.require(:default)
+
+require "mail"
+
+RSpec.configure do |config|
+end