From 48502085e5aa7a1d8d430fc1dd4913f34e818afa Mon Sep 17 00:00:00 2001
From: Azul <azul@riseup.net>
Date: Tue, 14 Jun 2016 09:36:29 +0200
Subject: introduce Hkp::Client

wraps the hkp protocol
---
 lib/nickserver/hkp/client.rb         | 44 ++++++++++++++++++++++++++++++++++++
 lib/nickserver/hkp/fetch_key_info.rb | 10 +++++---
 lib/nickserver/hkp/source.rb         | 28 +++++++++++------------
 3 files changed, 64 insertions(+), 18 deletions(-)
 create mode 100644 lib/nickserver/hkp/client.rb

(limited to 'lib')

diff --git a/lib/nickserver/hkp/client.rb b/lib/nickserver/hkp/client.rb
new file mode 100644
index 0000000..6bd239d
--- /dev/null
+++ b/lib/nickserver/hkp/client.rb
@@ -0,0 +1,44 @@
+require 'nickserver/hkp'
+
+#
+# Client for the HKP protocol.
+#
+# This is not a complete implementation - only the parts we need.
+# Instantiate with an adapter that will take care of the http requests.
+#
+# For each request we yield http_status and the response content just
+# like the adapter does.
+
+
+module Nickserver; module Hkp
+  class Client
+
+    def initialize(adapter)
+      @adapter = adapter
+    end
+
+    #
+    # used to fetch an array of KeyInfo objects that match the given email
+    #
+    def get_key_infos_by_email(email, &block)
+      get op: 'vindex', search: email, fingerprint: 'on', &block
+    end
+
+    #
+    # fetches ascii armored OpenPGP public key from the keyserver
+    #
+    def get_key_by_fingerprint(fingerprint, &block)
+      get op: 'get', search: "0x" + fingerprint, &block
+    end
+
+    protected
+
+    attr_reader :adapter
+
+    def get(query, &block)
+      # in practice, exact=on seems to have no effect
+      query = {exact: 'on', options: 'mr'}.merge query
+      adapter.get Config.hkp_url, query: query, &block
+    end
+  end
+end; end
diff --git a/lib/nickserver/hkp/fetch_key_info.rb b/lib/nickserver/hkp/fetch_key_info.rb
index b23af15..b8685bc 100644
--- a/lib/nickserver/hkp/fetch_key_info.rb
+++ b/lib/nickserver/hkp/fetch_key_info.rb
@@ -1,3 +1,5 @@
+require 'nickserver/hkp/client'
+
 #
 # used to fetch an array of KeyInfo objects that match the given uid.
 #
@@ -10,9 +12,7 @@ module Nickserver; module Hkp
     end
 
     def search(uid, &block)
-      # in practice, exact=on seems to have no effect
-      params = {op: 'vindex', search: uid, exact: 'on', options: 'mr', fingerprint: 'on'}
-      adapter.get(Config.hkp_url, query: params) do |status, response|
+      client.get_key_infos_by_email(uid) do |status, response|
         parser = ParseKeyInfo.new status, response
         yield parser.status_for(uid), parser.response_for(uid)
       end
@@ -21,6 +21,10 @@ module Nickserver; module Hkp
     protected
     attr_reader :adapter
 
+    def client
+      @client ||= Client.new(adapter)
+    end
+
   end
 
 end; end
diff --git a/lib/nickserver/hkp/source.rb b/lib/nickserver/hkp/source.rb
index 1af8ac9..cbff91a 100644
--- a/lib/nickserver/hkp/source.rb
+++ b/lib/nickserver/hkp/source.rb
@@ -1,5 +1,6 @@
 require 'nickserver/response'
 require 'nickserver/hkp/response'
+require 'nickserver/hkp/client'
 
 #
 # Fetch keys via HKP
@@ -29,11 +30,17 @@ module Nickserver; module Hkp
     attr_reader :adapter
 
     #
-    # fetches ascii armored OpenPGP public key from the keyserver
+    # for now, just pick the newest key.
     #
-    def get_key_by_fingerprint(nick, key_id)
-      params = {op: 'get', search: "0x" + key_id, exact: 'on', options: 'mr'}
-      adapter.get Config.hkp_url, query: params do |status, response|
+    # in the future, we should perhaps pick the newest key
+    # that is signed by the oldest key.
+    #
+    def pick_best_key(key_info_list)
+      key_info_list.sort {|a,b| a.creationdate <=> b.creationdate}.last
+    end
+
+    def get_key_by_fingerprint(nick, fingerprint)
+      client.get_key_by_fingerprint fingerprint do |status, response|
         if status == 200
           yield Response.new nick, response
         else
@@ -42,17 +49,8 @@ module Nickserver; module Hkp
       end
     end
 
-    protected
-
-    #
-    # for now, just pick the newest key.
-    #
-    # in the future, we should perhaps pick the newest key
-    # that is signed by the oldest key.
-    #
-    def pick_best_key(key_info_list)
-      key_info_list.sort {|a,b| a.creationdate <=> b.creationdate}.last
+    def client
+      @client ||= Client.new(adapter)
     end
   end
-
 end; end
-- 
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