lib/panda_pal.rb in panda_pal-5.1.0 vs lib/panda_pal.rb in panda_pal-5.2.0

@@ -5,15 +5,15 @@
 module PandaPal
   class LtiNavigationInUse < StandardError;end
   class NotMounted < StandardError;end
 
   @@lti_navigation = {}
-  @@staged_navigation = {}
   @@lti_options = {}
   @@lti_properties = {}
   @@lti_environments = {}
   @@lti_custom_params = {}
+  @@lti_private_key = nil
 
   def self.lti_options= lti_options
     @@lti_options = lti_options
   end
 
@@ -43,33 +43,46 @@
 
   def self.lti_custom_params
     @@lti_custom_params.deep_dup
   end
 
-  def self.register_navigation(navigation)
+  def self.stage_navigation(navigation, options)
     @@lti_navigation[navigation] ||= {}
+    @@lti_navigation[navigation].merge!(options)
   end
 
-  def self.stage_navigation(navigation, options)
-    @@staged_navigation[navigation] = {} unless @@staged_navigation.has_key?(navigation)
-    @@staged_navigation[navigation].merge!(options)
-  end
-
   def self.lti_paths
     @@lti_navigation.deep_dup
   end
 
-  def self.propagate_lti_navigation
-    @@staged_navigation.each do |k,v|
-      lti_navigation(k,v)
-      @@staged_navigation.delete(k)
-    end
+  def self.lti_private_key
+    key = @@lti_private_key.presence
+    key ||= ENV['LTI_PRIVATE_KEY'].presence
+    key ||= File.read(File.join( File.dirname(__FILE__), "../config/dev_lti_key.key")) if Rails.env.development?
+    return nil unless key.present?
+
+    key = OpenSSL::PKey::RSA.new(key) if key.is_a?(String)
+    key
   end
 
+  def self.lti_private_key=(v)
+    @@lti_private_key = k
+  end
+
   private
 
-  def self.lti_navigation(navigation, options)
-    raise "lti navigation '#{navigation}' has not been registered!" unless @@lti_navigation.has_key?(navigation)
-    @@lti_navigation[navigation].merge!(options)
+  def self.validate_pandapal_config!
+    errors = []
+    validate_lti_navigation(errors)
+    if errors.present?
+      lines = errors.map { |e| " - #{e}" }
+      raise "PandaPal was not configured correctly:\n#{lines.join("\n")}"
+    end
   end
 
+  def self.validate_lti_navigation(errors = [])
+    @@lti_navigation.each do |k, v|
+      errors << "lti navigation '#{k}' does not have a Route!" unless (LaunchUrlHelpers.launch_url(k) rescue nil)
+    end
+    errors
+  end
 end