Add shared context

spec/lib/msf/core/exploit/remote/java/rmi/client/jmx/server_spec.rb

@@ -19,54 +19,16 @@ RSpec.describe Msf::Exploit::Remote::Java::Rmi::Client::Jmx::Server do
 
   describe "#send_new_client" do
     context "when there is an RMIServerImpl_Stub interface" do
+      include_context "Msf::StringIO"
+
       #
       # lets
       #
 
-      let(:io) {
-        StringIO.new('', 'w+b')
-      }
-
       let(:remote_address) {
         '172.16.158.132'
       }
 
-      #
-      # Callbacks
-      #
-
-      before(:each) do
-        def io.get_once
-          read
-        end
-
-        def io.has_read_data?(_timeout)
-          false
-        end
-
-        def io.put(_data)
-          seek(0)
-          write(
-            "\x51\xac\xed\x00\x05\x77\x0f\x01\x82\x73\x92\x35\x00\x00\x01\x4c" +
-              "\x48\x27\x84\x49\x80\xbf\x73\x72\x00\x32\x6a\x61\x76\x61\x78\x2e" +
-              "\x6d\x61\x6e\x61\x67\x65\x6d\x65\x6e\x74\x2e\x72\x65\x6d\x6f\x74" +
-              "\x65\x2e\x72\x6d\x69\x2e\x52\x4d\x49\x43\x6f\x6e\x6e\x65\x63\x74" +
-              "\x69\x6f\x6e\x49\x6d\x70\x6c\x5f\x53\x74\x75\x62\x00\x00\x00\x00" +
-              "\x00\x00\x00\x02\x02\x00\x00\x70\x78\x72\x00\x1a\x6a\x61\x76\x61" +
-              "\x2e\x72\x6d\x69\x2e\x73\x65\x72\x76\x65\x72\x2e\x52\x65\x6d\x6f" +
-              "\x74\x65\x53\x74\x75\x62\xe9\xfe\xdc\xc9\x8b\xe1\x65\x1a\x02\x00" +
-              "\x00\x70\x78\x72\x00\x1c\x6a\x61\x76\x61\x2e\x72\x6d\x69\x2e\x73" +
-              "\x65\x72\x76\x65\x72\x2e\x52\x65\x6d\x6f\x74\x65\x4f\x62\x6a\x65" +
-              "\x63\x74\xd3\x61\xb4\x91\x0c\x61\x33\x1e\x03\x00\x00\x70\x78\x70" +
-              "\x77\x37\x00\x0a\x55\x6e\x69\x63\x61\x73\x74\x52\x65\x66\x00\x0e" +
-              "\x31\x37\x32\x2e\x31\x36\x2e\x31\x35\x38\x2e\x31\x33\x32\x00\x00" +
-              "\x13\x26\xa2\x01\x50\x97\x40\xd4\x90\xd1\x82\x73\x92\x35\x00\x00" +
-              "\x01\x4c\x48\x27\x84\x49\x80\xbe\x01\x78"
-          )
-          seek(0)
-        end
-      end
-
       it "returns the reference information" do
         expect(instance.send_new_client(sock: io)[:address]).to eq(remote_address)
       end

spec/support/shared/contexts/msf/string_io.rb

@@ -0,0 +1,37 @@
+RSpec.shared_context 'Msf::StringIO' do
+  let(:io) do
+    StringIO.new('', 'w+b')
+  end
+
+  before(:each) do
+    def io.get_once
+      read
+    end
+
+    def io.has_read_data?(_timeout)
+      false
+    end
+
+    def io.put(_data)
+      seek(0)
+      write(
+        "\x51\xac\xed\x00\x05\x77\x0f\x01\x82\x73\x92\x35\x00\x00\x01\x4c" +
+          "\x48\x27\x84\x49\x80\xbf\x73\x72\x00\x32\x6a\x61\x76\x61\x78\x2e" +
+          "\x6d\x61\x6e\x61\x67\x65\x6d\x65\x6e\x74\x2e\x72\x65\x6d\x6f\x74" +
+          "\x65\x2e\x72\x6d\x69\x2e\x52\x4d\x49\x43\x6f\x6e\x6e\x65\x63\x74" +
+          "\x69\x6f\x6e\x49\x6d\x70\x6c\x5f\x53\x74\x75\x62\x00\x00\x00\x00" +
+          "\x00\x00\x00\x02\x02\x00\x00\x70\x78\x72\x00\x1a\x6a\x61\x76\x61" +
+          "\x2e\x72\x6d\x69\x2e\x73\x65\x72\x76\x65\x72\x2e\x52\x65\x6d\x6f" +
+          "\x74\x65\x53\x74\x75\x62\xe9\xfe\xdc\xc9\x8b\xe1\x65\x1a\x02\x00" +
+          "\x00\x70\x78\x72\x00\x1c\x6a\x61\x76\x61\x2e\x72\x6d\x69\x2e\x73" +
+          "\x65\x72\x76\x65\x72\x2e\x52\x65\x6d\x6f\x74\x65\x4f\x62\x6a\x65" +
+          "\x63\x74\xd3\x61\xb4\x91\x0c\x61\x33\x1e\x03\x00\x00\x70\x78\x70" +
+          "\x77\x37\x00\x0a\x55\x6e\x69\x63\x61\x73\x74\x52\x65\x66\x00\x0e" +
+          "\x31\x37\x32\x2e\x31\x36\x2e\x31\x35\x38\x2e\x31\x33\x32\x00\x00" +
+          "\x13\x26\xa2\x01\x50\x97\x40\xd4\x90\xd1\x82\x73\x92\x35\x00\x00" +
+          "\x01\x4c\x48\x27\x84\x49\x80\xbe\x01\x78"
+      )
+      seek(0)
+    end
+  end
+end