add real error for bad download size

2 files changed, 5 insertions, 1 deletions

diff --git a/lib/chef/exceptions.rb b/lib/chef/exceptions.rb
index 1c952318f1..bc4a6e3b47 100644
--- a/lib/chef/exceptions.rb
+++ b/lib/chef/exceptions.rb
@@ -297,5 +297,9 @@ class Chef
     # non-GET and non-HEAD request will thus raise an InvalidRedirect.
     class InvalidRedirect < StandardError; end
 
+    # Raised when the content length of a download does not match the content
+    # length declared in the http response.
+    class ContentLengthMismatch < RuntimeError; end
+
   end
 end
diff --git a/lib/chef/http/validate_response.rb b/lib/chef/http/validate_response.rb
index 436334ab7a..1eaef3fa91 100644
--- a/lib/chef/http/validate_response.rb
+++ b/lib/chef/http/validate_response.rb
@@ -82,7 +82,7 @@ class Chef
         Chef::Log.debug "Content-Length header = #{content_length}"
         Chef::Log.debug "Response body length = #{response_length}"
         if response_length != content_length
-          raise "Response body length #{response_length} does not match HTTP Content-Length header #{content_length}"  #FIXME: real exception
+          raise Chef::Exceptions::ContentLengthMismatch, "Response body length #{response_length} does not match HTTP Content-Length header #{content_length}."
         end
         true
       end