use plain http.rb rather than celluloid i/o

Turns out http.rb does not support celluloid i/o andymore and we were not making
use of it anyway.

Here's what https://github.com/httprb/http/wiki/Thread-Safety says:
(NOTE: this gem previously supported Celluloid::IO, but that support was removed to add the current timeout backend. It may be added back in a future version)

So now we have a plain http.rb adapter and use that as the default.
This prevents actors from crashing in the adapter (as we don't have any).

3 files changed, 24 insertions, 3 deletions

diff --git a/lib/nickserver/adapters/http.rb b/lib/nickserver/adapters/http.rb
new file mode 100644
index 0000000..b0ba728
--- /dev/null
+++ b/lib/nickserver/adapters/http.rb
@@ -0,0 +1,21 @@
+require 'nickserver/adapters'
+require 'nickserver/config'
+require 'http'
+
+module Nickserver::Adapters
+  class Http
+
+    def get(url, options = {})
+      response = HTTP.get url,
+        params: options[:query],
+        ssl_context: ctx
+      return response.code, response.to_s
+    end
+
+    def ctx
+      OpenSSL::SSL::SSLContext.new.tap do |ctx|
+        ctx.ca_file = Nickserver::Config.hkp_ca_file
+      end
+    end
+  end
+end
diff --git a/lib/nickserver/source.rb b/lib/nickserver/source.rb
index edc57e9..ca2c34c 100644
--- a/lib/nickserver/source.rb
+++ b/lib/nickserver/source.rb
@@ -1,9 +1,9 @@
-require 'nickserver/adapters/celluloid_http'
+require 'nickserver/adapters/http'
 
 module Nickserver
   class Source
 
-    def initialize(adapter = Nickserver::Adapters::CelluloidHttp.new)
+    def initialize(adapter = Nickserver::Adapters::Http.new)
       @adapter = adapter
     end
 
diff --git a/test/support/http_stub_helper.rb b/test/support/http_stub_helper.rb
index cb9b578..808fd01 100644
--- a/test/support/http_stub_helper.rb
+++ b/test/support/http_stub_helper.rb
@@ -1,7 +1,7 @@
 module HttpStubHelper
 
   def stubbing_http
-    Nickserver::Adapters::CelluloidHttp.stub :new, adapter do
+    Nickserver::Adapters::Http.stub :new, adapter do
       yield
     end
     adapter.verify