[libmicrohttpd] 08/15: Do not send "100 Continue" if part of the request body is already received

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karlson2k pushed a commit to branch master
in repository libmicrohttpd.

commit bf9e99729c52c2462390ce1d29eeda7f0f337b26
Author: Evgeny Grin (Karlson2k) <k2k@narod.ru>
AuthorDate: Fri Oct 21 12:13:31 2022 +0300

    Do not send "100 Continue" if part of the request body is already received
---
 src/microhttpd/connection.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/microhttpd/connection.c b/src/microhttpd/connection.c
index 885557b5..0f94422b 100644
--- a/src/microhttpd/connection.c
+++ b/src/microhttpd/connection.c
@@ -4935,8 +4935,12 @@ MHD_connection_handle_idle (struct MHD_Connection 
*connection)
         continue;
       if (connection->suspended)
         continue;
+
       if ( (NULL == connection->rp.response) &&
-           (need_100_continue (connection)) )
+           (need_100_continue (connection)) &&
+           /* If the client is already sending the payload (body)
+              there is no need to send "100 Continue" */
+           (0 == connection->read_buffer_offset) )
       {
         connection->state = MHD_CONNECTION_CONTINUE_SENDING;
         break;

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