Arvados-DCO-1.1-Signed-off-by: Radhika Chippada <radhika@curoverse.com>

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

diff --git a/services/api/app/models/blob.rb b/services/api/app/models/blob.rb
index 34600d7a25a8c716bd9d1fd6ec49cea052dc0c58..3cf106328a31c2244e192e94814cd4d9874f86bd 100644 (file)
--- a/services/api/app/models/blob.rb
+++ b/services/api/app/models/blob.rb
@@ -1,3 +1,7 @@
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
 class Blob
   extend DbCurrentTime
 
@@ -49,11 +53,12 @@ class Blob
     end
     timestamp_hex = timestamp.to_s(16)
     # => "53163cb4"
+    blob_signature_ttl = Rails.configuration.blob_signature_ttl.to_s(16)
 
     # Generate a signature.
     signature =
       generate_signature((opts[:key] or Rails.configuration.blob_signing_key),
-                         blob_hash, opts[:api_token], timestamp_hex)
+                         blob_hash, opts[:api_token], timestamp_hex, blob_signature_ttl)
 
     blob_locator + '+A' + signature + '@' + timestamp_hex
   end
@@ -63,9 +68,9 @@ class Blob
   #   Return value: true if the locator has a valid signature, false otherwise
   #   Arguments: signed_blob_locator, opts
   #
-  def self.verify_signature *args
+  def self.verify_signature(*args)
     begin
-      self.verify_signature! *args
+      self.verify_signature!(*args)
       true
     rescue Blob::InvalidSignatureError
       false
@@ -96,10 +101,11 @@ class Blob
     if timestamp.to_i(16) < (opts[:now] or db_current_time.to_i)
       raise Blob::InvalidSignatureError.new 'Signature expiry time has passed.'
     end
+    blob_signature_ttl = Rails.configuration.blob_signature_ttl.to_s(16)
 
     my_signature =
       generate_signature((opts[:key] or Rails.configuration.blob_signing_key),
-                         blob_hash, opts[:api_token], timestamp)
+                         blob_hash, opts[:api_token], timestamp, blob_signature_ttl)
 
     if my_signature != given_signature
       raise Blob::InvalidSignatureError.new 'Signature is invalid.'
@@ -108,10 +114,11 @@ class Blob
     true
   end
 
-  def self.generate_signature key, blob_hash, api_token, timestamp
+  def self.generate_signature key, blob_hash, api_token, timestamp, blob_signature_ttl
     OpenSSL::HMAC.hexdigest('sha1', key,
                             [blob_hash,
                              api_token,
-                             timestamp].join('@'))
+                             timestamp,
+                             blob_signature_ttl].join('@'))
   end
 end