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From rnew...@apache.org
Subject svn commit: r1128113 - in /couchdb/branches/1.0.x/src/couchdb: couch_db.erl couch_httpd_db.erl
Date Thu, 26 May 2011 22:28:02 GMT
Author: rnewson
Date: Thu May 26 22:28:02 2011
New Revision: 1128113

URL: http://svn.apache.org/viewvc?rev=1128113&view=rev
Log:
COUCHDB-1177 - don't read more of an attachment than Content-Length states.

(original patch by Paul Davis, awesomeness enhanced by Robert Newson).

Conflicts:

	src/couchdb/couch_httpd_db.erl

Modified:
    couchdb/branches/1.0.x/src/couchdb/couch_db.erl
    couchdb/branches/1.0.x/src/couchdb/couch_httpd_db.erl

Modified: couchdb/branches/1.0.x/src/couchdb/couch_db.erl
URL: http://svn.apache.org/viewvc/couchdb/branches/1.0.x/src/couchdb/couch_db.erl?rev=1128113&r1=1128112&r2=1128113&view=diff
==============================================================================
--- couchdb/branches/1.0.x/src/couchdb/couch_db.erl (original)
+++ couchdb/branches/1.0.x/src/couchdb/couch_db.erl Thu May 26 22:28:02 2011
@@ -923,10 +923,15 @@ with_stream(Fd, #att{md5=InMd5,type=Type
 write_streamed_attachment(_Stream, _F, 0) ->
     ok;
 write_streamed_attachment(Stream, F, LenLeft) when LenLeft > 0 ->
-    Bin = F(),
+    Bin = read_next_chunk(F, LenLeft),
     ok = couch_stream:write(Stream, Bin),
     write_streamed_attachment(Stream, F, LenLeft - size(Bin)).
 
+read_next_chunk(F, _) when is_function(F, 0) ->
+    F();
+read_next_chunk(F, LenLeft) when is_function(F, 1) ->
+    F(lists:min([LenLeft, 16#2000])).
+
 enum_docs_since_reduce_to_count(Reds) ->
     couch_btree:final_reduce(
             fun couch_db_updater:btree_by_seq_reduce/2, Reds).

Modified: couchdb/branches/1.0.x/src/couchdb/couch_httpd_db.erl
URL: http://svn.apache.org/viewvc/couchdb/branches/1.0.x/src/couchdb/couch_httpd_db.erl?rev=1128113&r1=1128112&r2=1128113&view=diff
==============================================================================
--- couchdb/branches/1.0.x/src/couchdb/couch_httpd_db.erl (original)
+++ couchdb/branches/1.0.x/src/couchdb/couch_httpd_db.erl Thu May 26 22:28:02 2011
@@ -1025,7 +1025,7 @@ db_attachment_req(#httpd{method=Method,m
                         end,
                         
                         
-                        fun() -> couch_httpd:recv(Req, 0) end;
+                        fun(Size) -> couch_httpd:recv(Req, Size) end;
                     Length ->
                         exit({length_not_integer, Length})
                     end,



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