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authorJay Satiro <raysatiro@yahoo.com>2017-10-24 16:08:26 -0400
committerJay Satiro <raysatiro@yahoo.com>2017-10-26 14:34:46 -0400
commit979d2877be3647bef52e19a38f27346866a66bea (patch)
treea5ef2aa18bd70ec1a68d4d42bfc2dfcc3fd28965 /lib
parent788d3335734b24f4f15045989d1ce75d18e98961 (diff)
transfer: Fix chunked-encoding upload bug
- When uploading via chunked-encoding don't compare file size to bytes sent to determine whether the upload has finished. Chunked-encoding adds its own overhead which why the bytes sent is not equal to the file size. Prior to this change if a file was uploaded in chunked-encoding and its size was known it was possible that the upload could end prematurely without sending the final few chunks. That would result in a server hang waiting for the remaining data, likely followed by a disconnect. The scope of this bug is limited to some arbitrary file sizes which have not been determined. One size that triggers the bug is 475020. Bug: https://github.com/curl/curl/issues/2001 Reported-by: moohoorama@users.noreply.github.com Closes https://github.com/curl/curl/pull/2010
Diffstat (limited to 'lib')
-rw-r--r--lib/transfer.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/transfer.c b/lib/transfer.c
index 75659cf44..937477670 100644
--- a/lib/transfer.c
+++ b/lib/transfer.c
@@ -238,9 +238,11 @@ CURLcode Curl_fillreadbuffer(struct connectdata *conn, int bytes, int *nreadp)
}
#endif /* CURL_DOES_CONVERSIONS */
- if((nread - hexlen) == 0)
+ if((nread - hexlen) == 0) {
/* mark this as done once this chunk is transferred */
data->req.upload_done = TRUE;
+ infof(data, "Signaling end of chunked upload via terminating chunk.\n");
+ }
nread += (int)strlen(endofline_native); /* for the added end of line */
}
@@ -1046,7 +1048,8 @@ static CURLcode readwrite_upload(struct Curl_easy *data,
k->writebytecount += bytes_written;
- if(k->writebytecount == data->state.infilesize) {
+ if((!k->upload_chunky || k->forbidchunk) &&
+ (k->writebytecount == data->state.infilesize)) {
/* we have sent all data we were supposed to */
k->upload_done = TRUE;
infof(data, "We are completely uploaded and fine\n");