Federation (#61)

* Fix CORS header spelling

* Temprarily disable an unreliable test due to bad test setup

* Federation: Implemented Code Flow

* Federation: External User Generation

* Plugin system rewrite

* Federation Integration

* Clients are now loaded via the Plugin API

* YAML is now the default user backend

* Better test setup

* All persistent state is now stored in either /keys or /config

* Removed `import_certfile` option.

This is now possible thanks to a much simpler saving location of /keys/<client_id>.cert

* Automated Setup with Plugins

* Plugin for persistent storage
Uses Postgres

Configuration Defaults are now part of Omejdn

* Plugin Documentation

* Rubocop

* Update Gemfile

* SIOP Implementers Draft Support

* Add missing audience check

* Better internal user selection handling

* Refactoring

* UI improvements

* Per-user consent

* Federation Fixes

* Federation Plugin Documentation

* Self-contained Federation Plugin

* Plugin System: Flow Events

.rubocop.yml

@@ -1,7 +1,7 @@
 AllCops:
   NewCops: enable
   Exclude:
-    - tests/*.rb
+    - tests/**/*.rb
     - vendor/**/*
   TargetRubyVersion: 2.5
 Metrics/BlockLength:

Gemfile

@@ -16,7 +16,8 @@ end
 # Necessary Gems for Plugins
 group :plugins do
   gem 'net-ldap'
-  gem 'sqlite3'
+  gem 'pg'
+  gem 'rqrcode'
 end
 
 # Development only

Gemfile.lock

@@ -3,6 +3,7 @@ GEM
   specs:
     ast (2.4.2)
     bcrypt (3.1.18)
+    chunky_png (1.4.0)
     daemons (1.4.1)
     eventmachine (1.2.7)
     haml (5.2.2)
@@ -17,6 +18,7 @@ GEM
     parallel (1.22.1)
     parser (3.1.2.0)
       ast (~> 2.4.1)
+    pg (1.3.5)
     power_assert (2.0.1)
     rack (2.2.3.1)
     rack-protection (2.2.0)
@@ -26,6 +28,10 @@ GEM
     rainbow (3.1.1)
     regexp_parser (2.5.0)
     rexml (3.2.5)
+    rqrcode (2.1.1)
+      chunky_png (~> 1.0)
+      rqrcode_core (~> 1.0)
+    rqrcode_core (1.2.0)
     rubocop (1.30.0)
       parallel (~> 1.10)
       parser (>= 3.1.0.0)
@@ -50,7 +56,6 @@ GEM
       rack-protection (= 2.2.0)
       sinatra (= 2.2.0)
       tilt (~> 2.0)
-    sqlite3 (1.4.2)
     temple (0.8.2)
     test-unit (3.5.3)
       power_assert
@@ -70,11 +75,12 @@ DEPENDENCIES
   jwt
   net-ldap
   openssl
+  pg
   rack-test
+  rqrcode
   rubocop
   sinatra
   sinatra-contrib
-  sqlite3
   test-unit
   thin