RS, MS, relationship_flow returns the action and the url to execute it to

app/helpers/requests_helper.rb

@@ -1,16 +1,49 @@
 module RequestsHelper
-  def diaspora_url(identifier)
-    if identifier.include? '@'
 
-      begin
-        f = Redfinger.finger(identifier)
-        good_links = f.links.map{|x|  return x.href if x.rel =='http://joindiaspora.com/seed_location'}
-        identifier = good_links.first unless good_links.first.nil?
-      rescue
+  def subscription_mode(profile)
+    if diaspora?(profile)
+      :friend
+    elsif ostatus?(profile)
+      :subscribe
+    else
+      :none
+    end
+  end
 
-      end
+  def diaspora?(profile)
+    profile_contains(profile, 'http://joindiaspora.com/seed_location')
+  end
+
+  def ostatus?(profile)
+    profile_contains(profile, 'http://ostatus.org/schema/1.0/subscribe') 
+  end
+
+  def profile_contains(profile, rel)
+    profile.links.each{|x|  return true if x.rel == rel}
+    false
+  end
+
+  def subscription_url(action, profile)
+    if action == :subscribe
+      pp profile.links
+      profile.links.select{|x| x.rel == 'http://schemas.google.com/g/2010#updates-from'}.first.href
+    elsif action == :friend
+      profile.links.select{|x| x.rel == 'http://joindiaspora.com/seed_location'}.first.href
+    else
+      ''
+    end
+  end
+
+  def relationship_flow(identifier)
+    unless identifier.include?( '@')
+      return identifier
     end
 
-    identifier
+    f = Redfinger.finger(identifier)
+    action = subscription_mode(f)
+    url = subscription_url(action, f)
+
+    { action => url }
   end
+
 end

spec/helpers/requests_helper_spec.rb

@@ -3,11 +3,18 @@ require File.dirname(__FILE__) + '/../spec_helper'
 include RequestsHelper
 
 describe RequestsHelper do
+
+  before do 
+    @tom = Redfinger.finger('tom@tom.joindiaspora.com')
+    @evan = Redfinger.finger('evan@status.net')
+    @max = Redfinger.finger('mbs348@gmail.com')
+  end
+
+
   describe "profile" do
     it 'should fetch the public webfinger profile on request' do
-      pending "Can we please find a way to do this that doesn't freak me out if my internet connection is down?  Thanks, Rafi"
+      pending 
       #post :create {:request => {:destination_url => 'tom@tom.joindiaspora.com'}
-     
       url = diaspora_url('http://tom.joindiaspora.com/')
       url.should == 'http://tom.joindiaspora.com/'
 
@@ -15,5 +22,19 @@ describe RequestsHelper do
       url = diaspora_url('tom@tom.joindiaspora.com')
       url.should == 'http://tom.joindiaspora.com/'
     end
+
+    it 'should detect how to subscribe to a diaspora or ostatus webfinger profile' do
+      subscription_mode(@tom).should == :friend
+      subscription_mode(@evan).should == :subscribe
+      subscription_mode(@max).should == :none
+    end
+
+    it 'should return the correct tag and url for a given address' do
+      relationship_flow('tom@tom.joindiaspora.com')[:friend].should == 'http://tom.joindiaspora.com/'
+      relationship_flow('evan@status.net')[:subscribe].should == 'http://evan.status.net/api/statuses/user_timeline/1.atom'
+    end
+
   end
+
+
 end