some initial functionality on PrivatePub class

.gitignore

@@ -0,0 +1,5 @@
+*.swp
+**/*.swp
+*.gem
+Gemfile.lock
+.bundle

.rspec

@@ -0,0 +1 @@
+--color

.rvmrc

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+rvm use 1.9.2@private_pub --create

Gemfile

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

Rakefile

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

lib/private_pub.rb

@@ -1 +1,48 @@
-# TODO
+require "digest/sha1"
+require "net/http"
+
+class PrivatePub
+  class << self
+    def server=(server)
+      @config[:server] = server
+    end
+
+    def server
+      @config[:server]
+    end
+
+    def key_expiration=(key_expiration)
+      @config[:key_expiration] = key_expiration
+    end
+
+    def key_expiration
+      @config[:key_expiration]
+    end
+
+    def secret_token=(secret_token)
+      @config[:secret_token] = secret_token
+    end
+
+    def secret_token
+      @config[:secret_token]
+    end
+
+    def reset_config
+      @config = {
+        :server => "http://localhost:9292/faye",
+        :key_expiration => 60 * 60, # one hour
+      }
+    end
+
+    def subscription(options = {})
+      sub = {:timestamp => (Time.now.to_f * 1000).round}.merge(options)
+      sub[:key] = Digest::SHA1.hexdigest([secret_token, sub[:channel], sub[:timestamp]].join)
+      sub
+    end
+
+    def publish(data)
+      Net::HTTP.post_form(URI.parse(PrivatePub.server), data)
+    end
+  end
+  reset_config
+end

private_pub.gemspec

@@ -10,6 +10,9 @@ Gem::Specification.new do |s|
   s.files        = Dir["{lib,spec}/**/*", "[A-Z]*", "init.rb"] - ["Gemfile.lock"]
   s.require_path = "lib"
 
+  s.add_development_dependency 'rspec', '~> 2.1.0'
+  s.add_development_dependency 'rails', '~> 3.0.0'
+
   s.rubyforge_project = s.name
   s.required_rubygems_version = ">= 1.3.4"
 end

spec/private_pub_spec.rb

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+require "spec_helper"
+
+describe PrivatePub do
+  before(:each) do
+    PrivatePub.reset_config
+  end
+
+  it "has secret token, server, and key expiration settings" do
+    PrivatePub.secret_token = "secret token"
+    PrivatePub.secret_token.should == "secret token"
+    PrivatePub.server = "http://localhost/"
+    PrivatePub.server.should == "http://localhost/"
+    PrivatePub.key_expiration = 1000
+    PrivatePub.key_expiration.should == 1000
+  end
+
+  it "defaults server to localhost:9292/faye" do
+    PrivatePub.server.should == "http://localhost:9292/faye"
+  end
+
+  it "defaults key_expiration to 1 hour" do
+    PrivatePub.key_expiration.should == 60 * 60
+  end
+
+  it "defaults subscription timestamp to current time in milliseconds" do
+    time = Time.now
+    Time.stub!(:now).and_return(time)
+    PrivatePub.subscription[:timestamp].should == (time.to_f * 1000).round
+  end
+
+  it "includes channel and custom time in subscription" do
+    subscription = PrivatePub.subscription(:timestamp => 123, :channel => "hello")
+    subscription[:timestamp].should == 123
+    subscription[:channel].should == "hello"
+  end
+
+  it "does a sha1 digest of channel, timestamp, and secret token" do
+    PrivatePub.secret_token = "token"
+    subscription = PrivatePub.subscription(:timestamp => 123, :channel => "channel")
+    subscription[:key].should == Digest::SHA1.hexdigest("tokenchannel123")
+  end
+
+  it "publishes to server using Net::HTTP" do
+    Net::HTTP.should_receive(:post_form).with(URI.parse(PrivatePub.server), "hello world").and_return(:result)
+    PrivatePub.publish("hello world").should == :result
+  end
+end

spec/spec_helper.rb

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