2 files changed, 69 insertions, 35 deletions

diff --git a/config/initializers/paperclip.rb b/config/initializers/paperclip.rb
index 14bd034e6..8aa1d1b6e 100644
--- a/config/initializers/paperclip.rb
+++ b/config/initializers/paperclip.rb
@@ -14,40 +14,45 @@ Paperclip::Attachment.default_options.merge!(
 )
 
 if ENV['S3_ENABLED'] == 'true'
-  require 'fog/aws'
+  require 'aws-sdk'
+  Aws.eager_autoload!(services: %w(S3))
 
-  s3_protocol           = ENV.fetch('S3_PROTOCOL') { 'https' }
-  s3_hostname           = ENV.fetch('S3_HOSTNAME') { "s3-#{ENV['S3_REGION']}.amazonaws.com" }
-  aws_signature_version = ENV['S3_SIGNATURE_VERSION'] == 's3' ? 2 : ENV['S3_SIGNATURE_VERSION'].to_i
-  aws_signature_version = 4 if aws_signature_version.zero?
+  s3_region   = ENV.fetch('S3_REGION')   { 'us-east-1' }
+  s3_protocol = ENV.fetch('S3_PROTOCOL') { 'https' }
+  s3_hostname = ENV.fetch('S3_HOSTNAME') { "s3-#{s3_region}.amazonaws.com" }
 
   Paperclip::Attachment.default_options.merge!(
-    fog_credentials: {
-      provider: 'AWS',
-      aws_access_key_id: ENV['AWS_ACCESS_KEY_ID'],
-      aws_secret_access_key: ENV['AWS_SECRET_ACCESS_KEY'],
-      aws_signature_version: aws_signature_version,
-      region: ENV.fetch('S3_REGION') { 'us-east-1' },
-      scheme: s3_protocol,
-      host: s3_hostname
+    storage: :s3,
+    s3_protocol: s3_protocol,
+    s3_host_name: s3_hostname,
+    s3_headers: {
+      'Cache-Control' => 'max-age=315576000',
+    },
+    s3_permissions: ENV.fetch('S3_PERMISSION') { 'public-read' },
+    s3_region: s3_region,
+    s3_credentials: {
+      bucket: ENV['S3_BUCKET'],
+      access_key_id: ENV['AWS_ACCESS_KEY_ID'],
+      secret_access_key: ENV['AWS_SECRET_ACCESS_KEY'],
     },
-    fog_directory: ENV['S3_BUCKET'],
-    fog_options: {
-      acl: ENV.fetch('S3_PERMISSION') { 'public-read' },
-      cache_control: 'max-age=315576000',
+    s3_options: {
+      signature_version: ENV.fetch('S3_SIGNATURE_VERSION') { 'v4' },
     }
   )
 
   if ENV.has_key?('S3_ENDPOINT')
-    Paperclip::Attachment.default_options[:fog_credentials].merge!(
+    Paperclip::Attachment.default_options[:s3_options].merge!(
       endpoint: ENV['S3_ENDPOINT'],
-      path_style: true
+      force_path_style: true
     )
-    Paperclip::Attachment.default_options[:fog_host] = "#{s3_protocol}://#{s3_hostname}/#{ENV['S3_BUCKET']}"
+    Paperclip::Attachment.default_options[:url] = ':s3_path_url'
   end
 
   if ENV.has_key?('S3_CLOUDFRONT_HOST')
-    Paperclip::Attachment.default_options[:fog_host] = "#{s3_protocol}://#{ENV['S3_CLOUDFRONT_HOST']}"
+    Paperclip::Attachment.default_options.merge!(
+      url: ':s3_alias_url',
+      s3_host_alias: ENV['S3_CLOUDFRONT_HOST']
+    )
   end
 elsif ENV['SWIFT_ENABLED'] == 'true'
   require 'fog/openstack'
diff --git a/config/initializers/rack_attack.rb b/config/initializers/rack_attack.rb
index 53cb106ca..b38fb302b 100644
--- a/config/initializers/rack_attack.rb
+++ b/config/initializers/rack_attack.rb
@@ -1,6 +1,43 @@
 # frozen_string_literal: true
 
+require 'doorkeeper/grape/authorization_decorator'
+
 class Rack::Attack
+  class Request
+    def authenticated_token
+      return @token if defined?(@token)
+
+      @token = Doorkeeper::OAuth::Token.authenticate(
+        Doorkeeper::Grape::AuthorizationDecorator.new(self),
+        *Doorkeeper.configuration.access_token_methods
+      )
+    end
+
+    def authenticated_user_id
+      authenticated_token&.resource_owner_id
+    end
+
+    def unauthenticated?
+      !authenticated_user_id
+    end
+
+    def api_request?
+      path.start_with?('/api')
+    end
+
+    def web_request?
+      !api_request?
+    end
+  end
+
+  PROTECTED_PATHS = %w(
+    /auth/sign_in
+    /auth
+    /auth/password
+  ).freeze
+
+  PROTECTED_PATHS_REGEX = Regexp.union(PROTECTED_PATHS.map { |path| /\A#{Regexp.escape(path)}/ })
+
   # Always allow requests from localhost
   # (blocklist & throttles are skipped)
   Rack::Attack.safelist('allow from localhost') do |req|
@@ -8,24 +45,16 @@ class Rack::Attack
     '127.0.0.1' == req.ip || '::1' == req.ip
   end
 
-  # Rate limits for the API
-  throttle('api', limit: 300, period: 5.minutes) do |req|
-    req.ip if req.path =~ /\A\/api\/v/
-  end
-
-  # Rate limit logins
-  throttle('login', limit: 5, period: 5.minutes) do |req|
-    req.ip if req.path == '/auth/sign_in' && req.post?
+  throttle('throttle_authenticated_api', limit: 300, period: 5.minutes) do |req|
+    req.api_request? && req.authenticated_user_id
   end
 
-  # Rate limit sign-ups
-  throttle('register', limit: 5, period: 5.minutes) do |req|
-    req.ip if req.path == '/auth' && req.post?
+  throttle('throttle_unauthenticated_api', limit: 7_500, period: 5.minutes) do |req|
+    req.ip if req.api_request?
   end
 
-  # Rate limit forgotten passwords
-  throttle('reminder', limit: 5, period: 5.minutes) do |req|
-    req.ip if req.path == '/auth/password' && req.post?
+  throttle('protected_paths', limit: 5, period: 5.minutes) do |req|
+    req.ip if req.post? && req.path =~ PROTECTED_PATHS_REGEX
   end
 
   self.throttled_response = lambda do |env|