refactor: set target in emitters

lib/mihari/emitters/base.rb

@@ -19,6 +19,14 @@ def initialize(rule:, options: nil)
         @rule = rule
       end
 
+      # A target to emit the data
+      #
+      # @return [String]
+      #
+      def target
+        raise NotImplementedError, "You must implement #{self.class}##{__method__}"
+      end
+
       #
       # @param [Array<Mihari::Models::Artifact>] artifacts
       #
@@ -38,7 +46,9 @@ def result(artifacts)
           ) { call(artifacts) }
         end.to_result
 
-        Mihari.logger.warn("Emitter:#{self.class.key} failed - #{result.failure}") if result.failure?
+        if result.failure?
+          Mihari.logger.warn("Emitter:#{self.class.key} for #{target.truncate(32)} failed - #{result.failure}")
+        end
 
         result
       end

lib/mihari/emitters/database.rb

@@ -21,6 +21,10 @@ def call(artifacts)
         alert
       end
 
+      def target
+        Mihari.config.database_url.host || Mihari.config.database_url.to_s
+      end
+
       class << self
         def configuration_keys
           %w[database_url]

lib/mihari/emitters/misp.rb

@@ -56,6 +56,13 @@ def call(artifacts)
         })
       end
 
+      #
+      # @return [String]
+      #
+      def target
+        URI(url).host || "N/A"
+      end
+
       class << self
         def configuration_keys
           %w[misp_url misp_api_key]

lib/mihari/emitters/slack.rb

@@ -165,6 +165,13 @@ def configured?
         webhook_url?
       end
 
+      #
+      # @return [String]
+      #
+      def target
+        channel
+      end
+
       #
       # @return [::Slack::Notifier]
       #

lib/mihari/emitters/the_hive.rb

@@ -33,6 +33,13 @@ def configured?
         api_key? && url?
       end
 
+      #
+      # @return [String]
+      #
+      def target
+        URI(url).host || "N/A"
+      end
+
       #
       # Create a Hive alert
       #

lib/mihari/emitters/webhook.rb

@@ -55,6 +55,13 @@ def configured?
         %w[http https].include? url.scheme.downcase
       end
 
+      #
+      # @return [String]
+      #
+      def target
+        URI(url).host || "N/A"
+      end
+
       #
       # @param [Array<Mihari::Models::Artifact>] artifacts
       #

spec/emitters/database_spec.rb

@@ -18,4 +18,10 @@
       expect(created_artifacts.length).to eq(artifacts.length)
     end
   end
+
+  describe "#target" do
+    it do
+      expect(emitter.target).to eq("sqlite3::memory:")
+    end
+  end
 end

spec/emitters/misp_spec.rb

@@ -26,4 +26,10 @@
       emitter.call artifacts
     end
   end
+
+  describe "#target" do
+    it do
+      expect(emitter.target).to be_a(String)
+    end
+  end
 end

spec/emitters/slack_spec.rb

@@ -72,4 +72,10 @@
       expect(mock).to have_received(:post).once
     end
   end
+
+  describe "#target" do
+    it do
+      expect(emitter.target).to be_a(String)
+    end
+  end
 end

spec/emitters/the_hive_spec.rb

@@ -42,4 +42,10 @@
       expect(mock_client).to have_received(:alert)
     end
   end
+
+  describe "#target" do
+    it do
+      expect(emitter.target).to be_a(String)
+    end
+  end
 end

spec/emitters/webhook_spec.rb

@@ -11,15 +11,15 @@
 
   describe "#configured?" do
     context "without URL" do
-      subject(:emitter) { described_class.new(rule: rule) }
+      let(:emitter) { described_class.new(rule: rule) }
 
       it do
         expect(emitter.configured?).to be false
       end
     end
 
     context "with URL" do
-      subject(:emitter) { described_class.new(rule: rule, url: url) }
+      let(:emitter) { described_class.new(rule: rule, url: url) }
 
       it do
         expect(emitter.configured?).to be true
@@ -28,7 +28,7 @@
   end
 
   describe "#call" do
-    subject(:emitter) do
+    let(:emitter) do
       described_class.new(
         rule: rule,
         url: url,
@@ -45,7 +45,7 @@
     end
 
     context "with a template file" do
-      subject(:emitter) do
+      let(:emitter) do
         described_class.new(
           rule: rule,
           url: url,
@@ -61,4 +61,12 @@
       end
     end
   end
+
+  describe "#target" do
+    let(:emitter) { described_class.new(rule: rule, url: url) }
+
+    it do
+      expect(emitter.target).to be_a(String)
+    end
+  end
 end