Fix Logic Monitor HMAC authentication

Author: armiiller

Diff for: app/models/pager_tree/integrations/logic_monitor/v3.rb

@@ -38,7 +38,7 @@ def adapter_incoming_can_defer?
     end
 
     def adapter_thirdparty_id
-      adapter_incoming_request_params.dig("alertid")
+      adapter_incoming_request_params.dig("internalid")
     end
 
     def adapter_action
@@ -118,9 +118,10 @@ def send_request_with_hmac(resource_path, http_verb, data)
       url = base_url + resource_path
       timestamp_ms = Time.current.to_i * 1000
       data_string = data.to_json
-      signature = Base64.strict_encode64(
-        OpenSSL::HMAC.digest(
-          OpenSSL::Digest.new("sha256"),
+      # https://gist.github.com/abeland/e09a559e243f70670f2f4da3fd0fdabd
+      signature = Base64.urlsafe_encode64(
+        OpenSSL::HMAC.hexdigest(
+          "SHA256",
           option_access_key,
           (http_verb.upcase + timestamp_ms.to_s + data_string + resource_path)
         )

Diff for: test/models/pager_tree/integrations/logic_monitor/v3_test.rb

@@ -43,7 +43,8 @@ class LogicMonitor::V3Test < ActiveSupport::TestCase
         servicedetail: nil,
         serviceurl: "https://pagertree-test-server.net/",
         servicegroup: "Functional Testing",
-        clearvalue: "1"
+        clearvalue: "1",
+        internalid: "1234567890"
       }.with_indifferent_access
 
       @resolve_request = @create_request.deep_dup
@@ -81,7 +82,7 @@ class LogicMonitor::V3Test < ActiveSupport::TestCase
 
     test "adapter_thirdparty_id" do
       @integration.adapter_incoming_request_params = @create_request
-      assert_equal @create_request.dig("alertid"), @integration.adapter_thirdparty_id
+      assert_equal @create_request.dig("internalid"), @integration.adapter_thirdparty_id
     end
 
     test "adapter_process_create" do
@@ -91,7 +92,7 @@ class LogicMonitor::V3Test < ActiveSupport::TestCase
         title: @create_request.dig("eventmsg"),
         description: @create_request.dig("eventlogmsg"),
         urgency: "medium",
-        thirdparty_id: @create_request.dig("alertid"),
+        thirdparty_id: @create_request.dig("internalid"),
         dedup_keys: [],
         additional_data: [
           AdditionalDatum.new(format: "text", label: "Host", value: @create_request.dig("host")),
@@ -112,7 +113,7 @@ class LogicMonitor::V3Test < ActiveSupport::TestCase
       outgoing_event = OutgoingEvent.new
       outgoing_event.event_name = :alert_acknowledged
       outgoing_event.alert = OpenStruct.new(
-        thirdparty_id: "LMS22",
+        thirdparty_id: "1234567890",
         foo: "bar",
         source: @integration
       )