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authorDaniel Stenberg <daniel@haxx.se>2012-04-20 20:40:55 +0200
committerDaniel Stenberg <daniel@haxx.se>2012-04-20 22:25:31 +0200
commit560cd6227271752536de237e41c374d0a3e11f1d (patch)
tree020e22930ac9dfc4c926fbe43f6fd880ad962e11
parent0f548802775b01c26c4c263be86f3605310f6f35 (diff)
HTTP: empty chunked POST ended up in two zero size chunks
When doing a chunked-encoded POST with -d (CURLOPT_POSTFIELDS) and the size of the POST was zero length, it made libcurl first send a zero chunk and then the terminating one. This could confuse a receiver and it should rather just send the terminating chunk as it does with this fix. Test case 1333 is added to verify. Bug: http://curl.haxx.se/mail/archive-2012-04/0060.html Reported by: Arnaud Compan
-rw-r--r--lib/http.c14
-rw-r--r--tests/data/Makefile.am2
-rw-r--r--tests/data/test133355
3 files changed, 64 insertions, 7 deletions
diff --git a/lib/http.c b/lib/http.c
index d4324400f..a13989417 100644
--- a/lib/http.c
+++ b/lib/http.c
@@ -1088,7 +1088,7 @@ CURLcode Curl_add_buffer_send(Curl_send_buffer *in,
if(conn->data->set.verbose) {
/* this data _may_ contain binary stuff */
Curl_debug(conn->data, CURLINFO_HEADER_OUT, ptr, headlen, conn);
- if((size_t)amount > headlen) {
+ if(bodylen) {
/* there was body data sent beyond the initial header part, pass that
on to the debug callback too */
Curl_debug(conn->data, CURLINFO_DATA_OUT,
@@ -2480,11 +2480,13 @@ CURLcode Curl_http(struct connectdata *conn, bool *done)
included_body = postsize;
}
else {
- /* Append the POST data chunky-style */
- result = Curl_add_bufferf(req_buffer, "%x\r\n", (int)postsize);
- if(CURLE_OK == result)
- result = Curl_add_buffer(req_buffer, data->set.postfields,
- (size_t)postsize);
+ if(postsize) {
+ /* Append the POST data chunky-style */
+ result = Curl_add_bufferf(req_buffer, "%x\r\n", (int)postsize);
+ if(CURLE_OK == result)
+ result = Curl_add_buffer(req_buffer, data->set.postfields,
+ (size_t)postsize);
+ }
if(CURLE_OK == result)
result = Curl_add_buffer(req_buffer,
"\x0d\x0a\x30\x0d\x0a\x0d\x0a", 7);
diff --git a/tests/data/Makefile.am b/tests/data/Makefile.am
index 0fb16a6cd..8d9199566 100644
--- a/tests/data/Makefile.am
+++ b/tests/data/Makefile.am
@@ -83,7 +83,7 @@ test1300 test1301 test1302 test1303 test1304 test1305 \
test1306 test1307 test1308 test1309 test1310 test1311 test1312 test1313 \
test1314 test1315 test1316 test1317 test1318 test1319 test1320 test1321 \
test1322 test1323 test1324 test1325 test1326 test1327 test1328 test1329 \
-test1331 test1332 \
+test1331 test1332 test1333 \
test1400 test1401 test1402 test1403 test1404 test1405 test1406 test1407 \
test2000 test2001 test2002 test2003 test2004
diff --git a/tests/data/test1333 b/tests/data/test1333
new file mode 100644
index 000000000..51ba75b4e
--- /dev/null
+++ b/tests/data/test1333
@@ -0,0 +1,55 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP GET
+</keywords>
+</info>
+
+#
+# Server-side
+<reply>
+<data>
+HTTP/1.1 200 OK
+Date: Thu, 09 Nov 2010 14:49:00 GMT
+Accept-Ranges: bytes
+Content-Length: 6
+Connection: close
+
+-foo-
+</data>
+</reply>
+
+#
+# Client-side
+<client>
+<server>
+http
+</server>
+ <name>
+HTTP POST zero length, chunked-encoded
+ </name>
+ <command>
+-d "" --header "Transfer-Encoding: chunked" http://%HOSTIP:%HTTPPORT/1333
+</command>
+</client>
+
+#
+# Verify data after the test has been "shot"
+<verify>
+<strip>
+^User-Agent:.*
+</strip>
+<protocol>
+POST /1333 HTTP/1.1
+Host: %HOSTIP:%HTTPPORT
+Accept: */*
+Transfer-Encoding: chunked
+Content-Type: application/x-www-form-urlencoded
+
+
+0
+
+</protocol>
+</verify>
+</testcase>