experimental excon support

lib/faraday/adapter.rb

@@ -12,6 +12,7 @@ module Faraday
       :Typhoeus       => 'typhoeus',
       :EMSynchrony    => 'em_synchrony',
       :Patron         => 'patron',
+      :Excon          => 'excon',
       :Test           => 'test'
 
     register_lookup_modules \
@@ -20,7 +21,8 @@ module Faraday
       :net_http        => :NetHttp,
       :typhoeus        => :Typhoeus,
       :patron          => :Patron,
-      :em_synchrony    => :EMSynchrony
+      :em_synchrony    => :EMSynchrony,
+      :excon           => :Excon
 
     def call(env)
       process_body_for_request(env)

lib/faraday/adapter/excon.rb

@@ -0,0 +1,41 @@
+module Faraday
+  class Adapter
+    class Excon < Faraday::Adapter
+      begin
+        require 'excon'
+      rescue LoadError, NameError => e
+        self.load_error = e
+      end
+
+      def call(env)
+        super
+
+        conn = ::Excon.new(env[:url].to_s)
+        if ssl = (env[:url].scheme == 'https' && env[:ssl])
+          ::Excon.ssl_verify_peer = !!ssl[:verify] if ssl.key?(:verify)
+          if ca_file = ssl[:ca_file]
+            ::Excon.ssl_ca_path = ca_file
+          end
+        end
+
+        resp = conn.request \
+          :method  => env[:method].to_s.upcase,
+          :headers => env[:request_headers],
+          :body    => env[:body]
+
+        env.update \
+          :status => resp.status.to_i,
+          :response_headers => {},
+          :body => resp.body
+
+        resp.headers.each do |key, value|
+          env[:response_headers][key.downcase] = value
+        end
+
+        @app.call env
+      rescue ::Excon::Errors::SocketError => e
+        raise Error::ConnectionFailed.new(e)
+      end
+    end
+  end
+end