Merge branch '16736-max-token-lifetime'

[arvados.git] / services / api / app / models / api_client_authorization.rb

diff --git a/services/api/app/models/api_client_authorization.rb b/services/api/app/models/api_client_authorization.rb
index 6a34ed95522f419f88303cc5de3190e833f2d99e..ee63c4d934d5468934f9471b373e96c3967fe426 100644 (file)
--- a/services/api/app/models/api_client_authorization.rb
+++ b/services/api/app/models/api_client_authorization.rb
@@ -7,12 +7,15 @@ class ApiClientAuthorization < ArvadosModel
   include KindAndEtag
   include CommonApiTemplate
   extend CurrentApiClient
+  extend DbCurrentTime
 
   belongs_to :api_client
   belongs_to :user
   after_initialize :assign_random_api_token
   serialize :scopes, Array
 
+  before_validation :clamp_token_expiration
+
   api_accessible :user, extend: :common do |t|
     t.add :owner_uuid
     t.add :user_id
@@ -130,6 +133,7 @@ class ApiClientAuthorization < ArvadosModel
 
     token_uuid = ''
     secret = token
+    stored_secret = nil         # ...if different from secret
     optional = nil
 
     case token[0..2]
@@ -206,8 +210,7 @@ class ApiClientAuthorization < ArvadosModel
         # below. If so, we'll stuff the database with hmac instead of
         # the real OIDC token.
         upstream_cluster_id = Rails.configuration.Login.LoginCluster
-        token_uuid = generate_uuid
-        secret = hmac
+        stored_secret = hmac
       else
         return nil
       end
@@ -246,6 +249,23 @@ class ApiClientAuthorization < ArvadosModel
 
     remote_user_prefix = remote_user['uuid'][0..4]
 
+    if token_uuid == ''
+      # Use the same UUID as the remote when caching the token.
+      begin
+        remote_token = SafeJSON.load(
+          clnt.get_content('https://' + host + '/arvados/v1/api_client_authorizations/current',
+                           {'remote' => Rails.configuration.ClusterID},
+                           {'Authorization' => 'Bearer ' + token}))
+        token_uuid = remote_token['uuid']
+        if !token_uuid.match(HasUuid::UUID_REGEX) || token_uuid[0..4] != upstream_cluster_id
+          raise "remote cluster #{upstream_cluster_id} returned invalid token uuid #{token_uuid.inspect}"
+        end
+      rescue => e
+        Rails.logger.warn "error getting remote token details for #{token.inspect}: #{e}"
+        return nil
+      end
+    end
+
     # Clusters can only authenticate for their own users.
     if remote_user_prefix != upstream_cluster_id
       Rails.logger.warn "remote authentication rejected: claimed remote user #{remote_user_prefix} but token was issued by #{upstream_cluster_id}"
@@ -328,11 +348,18 @@ class ApiClientAuthorization < ArvadosModel
         auth.user = user
         auth.api_client_id = 0
       end
+      # If stored_secret is set, we save stored_secret in the database
+      # but return the real secret to the caller. This way, if we end
+      # up returning the auth record to the client, they see the same
+      # secret they supplied, instead of the HMAC we saved in the
+      # database.
+      stored_secret = stored_secret || secret
       auth.update_attributes!(user: user,
-                              api_token: secret,
+                              api_token: stored_secret,
                               api_client_id: 0,
-                              expires_at: Time.now + Rails.configuration.Login.RemoteTokenRefresh)
-      Rails.logger.debug "cached remote token #{token_uuid} with secret #{secret} in local db"
+                              expires_at: db_current_time + Rails.configuration.Login.RemoteTokenRefresh)
+      Rails.logger.debug "cached remote token #{token_uuid} with secret #{stored_secret} in local db"
+      auth.api_token = secret
       return auth
     end
 
@@ -360,6 +387,15 @@ class ApiClientAuthorization < ArvadosModel
 
   protected
 
+  def clamp_token_expiration
+    if !current_user.andand.is_admin && Rails.configuration.API.MaxTokenLifetime > 0
+      max_token_expiration = db_current_time + Rails.configuration.API.MaxTokenLifetime
+      if (self.new_record? || self.expires_at_changed?) && (self.expires_at.nil? || self.expires_at > max_token_expiration)
+        self.expires_at = max_token_expiration
+      end
+    end
+  end
+
   def permission_to_create
     current_user.andand.is_admin or (current_user.andand.id == self.user_id)
   end
@@ -370,7 +406,6 @@ class ApiClientAuthorization < ArvadosModel
   end
 
   def log_update
-
     super unless (saved_changes.keys - UNLOGGED_CHANGES).empty?
   end
 end