mirror of
https://github.com/discourse/discourse.git
synced 2024-11-25 02:11:08 -06:00
54 lines
1.6 KiB
Ruby
54 lines
1.6 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class Discourse::Cors
|
|
ORIGINS_ENV = "Discourse_Cors_Origins"
|
|
|
|
def initialize(app, options = nil)
|
|
@app = app
|
|
if GlobalSetting.enable_cors && GlobalSetting.cors_origin.present?
|
|
@global_origins = GlobalSetting.cors_origin.split(',').map(&:strip)
|
|
end
|
|
end
|
|
|
|
def call(env)
|
|
|
|
cors_origins = @global_origins || []
|
|
cors_origins += SiteSetting.cors_origins.split('|') if SiteSetting.cors_origins.present?
|
|
cors_origins = cors_origins.presence
|
|
|
|
if env['REQUEST_METHOD'] == ('OPTIONS') && env['HTTP_ACCESS_CONTROL_REQUEST_METHOD']
|
|
return [200, Discourse::Cors.apply_headers(cors_origins, env, {}), []]
|
|
end
|
|
|
|
env[Discourse::Cors::ORIGINS_ENV] = cors_origins if cors_origins
|
|
|
|
status, headers, body = @app.call(env)
|
|
headers ||= {}
|
|
|
|
Discourse::Cors.apply_headers(cors_origins, env, headers) if cors_origins
|
|
|
|
[status, headers, body]
|
|
end
|
|
|
|
def self.apply_headers(cors_origins, env, headers)
|
|
origin = nil
|
|
|
|
if cors_origins
|
|
if origin = env['HTTP_ORIGIN']
|
|
origin = nil unless cors_origins.include?(origin)
|
|
end
|
|
|
|
headers['Access-Control-Allow-Origin'] = origin || cors_origins[0]
|
|
headers['Access-Control-Allow-Headers'] = 'Content-Type, Cache-Control, X-Requested-With, X-CSRF-Token, Discourse-Visible, User-Api-Key, User-Api-Client-Id, Authorization'
|
|
headers['Access-Control-Allow-Credentials'] = 'true'
|
|
headers['Access-Control-Allow-Methods'] = 'POST, PUT, GET, OPTIONS, DELETE'
|
|
end
|
|
|
|
headers
|
|
end
|
|
end
|
|
|
|
if GlobalSetting.enable_cors
|
|
Rails.configuration.middleware.insert_before ActionDispatch::Flash, Discourse::Cors
|
|
end
|