From 02d3ca7edcfc7adb5688f46e48c8671792a80eab Mon Sep 17 00:00:00 2001
From: Jonathan Xu <jonathan.xu@seafile.com>
Date: Wed, 10 Feb 2021 10:45:34 +0800
Subject: [PATCH] Fix detection of upload boundary.

Sometime a boundary can be splitted and received in two read operations.
---
 server/upload-file.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/server/upload-file.c b/server/upload-file.c
index a20d8c9..3bd6ac7 100755
--- a/server/upload-file.c
+++ b/server/upload-file.c
@@ -1982,7 +1982,7 @@ recv_form_field (RecvFSM *fsm, gboolean *no_line)
         free (line);
     } else {
         size_t size = evbuffer_get_length (fsm->line);
-        if (size > 0) {
+        if (size >= strlen(fsm->boundary)) {
             char *buf = g_new (char, size);
             evbuffer_remove (fsm->line, buf, size);
             if (strstr(buf, fsm->boundary) != NULL) {
@@ -2043,7 +2043,7 @@ recv_file_data (RecvFSM *fsm, gboolean *no_line)
     if (!line) {
         // handle boundary
         size_t size = evbuffer_get_length (fsm->line);
-        if (size > 0) {
+        if (size >= strlen(fsm->boundary)) {
             char *buf = g_new (char, size);
             evbuffer_remove (fsm->line, buf, size);
             if (strstr(buf, fsm->boundary) != NULL) {