From 1c8b32dffc1f9002f5285ad56cb26b5a92a24663 Mon Sep 17 00:00:00 2001
From: Oleksii Kriuchykhin <okriuchykhin@biosistemika.com>
Date: Wed, 30 Jun 2021 17:04:19 +0200
Subject: [PATCH] Add biomolecular toolkit API proxying endpoint [SCI-5843]

---
 .../bio_eddie_assets_controller.rb            | 21 +++++++++++++++++--
 config/routes.rb                              |  4 ++++
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/app/controllers/bio_eddie_assets_controller.rb b/app/controllers/bio_eddie_assets_controller.rb
index d282031c0..010f0263e 100644
--- a/app/controllers/bio_eddie_assets_controller.rb
+++ b/app/controllers/bio_eddie_assets_controller.rb
@@ -3,10 +3,10 @@
 class BioEddieAssetsController < ApplicationController
   include ActiveStorage::SetCurrent
 
-  before_action :load_vars, except: :create
+  before_action :load_vars, except: %i(create bmt_request)
   before_action :load_create_vars, only: :create
 
-  before_action :check_read_permission
+  before_action :check_read_permission, except: %i(update create start_editing bmt_request)
   before_action :check_edit_permission, only: %i(update create start_editing)
 
   def create
@@ -38,6 +38,23 @@ class BioEddieAssetsController < ApplicationController
     end
   end
 
+  def bmt_request
+    return_404 unless ENV['BIOMOLECULE_TOOLKIT_BASE_URL']
+
+    uri = URI.parse(ENV['BIOMOLECULE_TOOLKIT_BASE_URL'])
+    uri.path = request.original_fullpath.remove('/biomolecule_toolkit')
+
+    Net::HTTP.start(uri.host, uri.port, use_ssl: uri.scheme == 'https') do |http|
+      api_request = "Net::HTTP::#{request.request_method.capitalize}".constantize.new(uri)
+      api_request['x-api-key'] = ENV['BIOMOLECULE_TOOLKIT_API_KEY'] if ENV['BIOMOLECULE_TOOLKIT_API_KEY']
+      api_request['Content-Type'] = 'application/json'
+      request_body = request.body.read
+      api_request.body = request_body if request_body.present?
+      api_response = http.request(api_request)
+      render body: api_response.body, content_type: api_response.content_type, status: api_response.code
+    end
+  end
+
   def start_editing
     # Activity here
   end
diff --git a/config/routes.rb b/config/routes.rb
index 7ee8e92ef..315caeea6 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -779,6 +779,10 @@ Rails.application.routes.draw do
     end
   end
 
+  match 'biomolecule_toolkit/*path', to: 'bio_eddie_assets#bmt_request',
+                                     via: %i(get post put delete),
+                                     defaults: { format: 'json' }
+
   post 'global_activities', to: 'global_activities#index'
 
   constraints WopiSubdomain do