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-rw-r--r--lib/http2.c132
1 files changed, 29 insertions, 103 deletions
diff --git a/lib/http2.c b/lib/http2.c
index 4343e125b..951a0a884 100644
--- a/lib/http2.c
+++ b/lib/http2.c
@@ -238,37 +238,21 @@ static int on_frame_recv(nghttp2_session *session, const nghttp2_frame *frame,
break;
if(stream->bodystarted) {
- /* Only valid HEADERS after body started is trailer header,
- which is not fully supported in this code. If HEADERS is not
- trailer, then it is a PROTOCOL_ERROR. */
- if((frame->hd.flags & NGHTTP2_FLAG_END_STREAM) == 0) {
- rv = nghttp2_submit_rst_stream(session, NGHTTP2_FLAG_NONE,
- stream_id, NGHTTP2_PROTOCOL_ERROR);
-
- if(nghttp2_is_fatal(rv)) {
- return NGHTTP2_ERR_CALLBACK_FAILURE;
- }
- }
+ /* Only valid HEADERS after body started is trailer HEADERS. We
+ ignores trailer HEADERS for now. nghttp2 guarantees that it
+ has END_STREAM flag set. */
break;
}
- if(stream->status_code == -1) {
- /* No :status header field means PROTOCOL_ERROR. */
- rv = nghttp2_submit_rst_stream(session, NGHTTP2_FLAG_NONE,
- stream_id, NGHTTP2_PROTOCOL_ERROR);
-
- if(nghttp2_is_fatal(rv)) {
- return NGHTTP2_ERR_CALLBACK_FAILURE;
- }
-
- break;
- }
+ /* nghttp2 guarantees that :status is received, and we store it to
+ stream->status_code */
+ DEBUGASSERT(stream->status_code != -1);
/* Only final status code signals the end of header */
- if(stream->status_code / 100 != 1)
+ if(stream->status_code / 100 != 1) {
stream->bodystarted = TRUE;
-
- stream->status_code = -1;
+ stream->status_code = -1;
+ }
Curl_add_buffer(stream->header_recvbuf, "\r\n", 2);
@@ -330,14 +314,14 @@ static int on_frame_recv(nghttp2_session *session, const nghttp2_frame *frame,
static int on_invalid_frame_recv(nghttp2_session *session,
const nghttp2_frame *frame,
- uint32_t error_code, void *userp)
+ int lib_error_code, void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
(void)session;
(void)frame;
DEBUGF(infof(conn->data,
- "on_invalid_frame_recv() was called, error_code = %d\n",
- error_code));
+ "on_invalid_frame_recv() was called, error=%d:%s\n",
+ lib_error_code, nghttp2_strerror(lib_error_code)));
return 0;
}
@@ -503,8 +487,6 @@ static int decode_status_code(const uint8_t *value, size_t len)
return res;
}
-static const char STATUS[] = ":status";
-
/* frame->hd.type is either NGHTTP2_HEADERS or NGHTTP2_PUSH_PROMISE */
static int on_header(nghttp2_session *session, const nghttp2_frame *frame,
const uint8_t *name, size_t namelen,
@@ -515,9 +497,6 @@ static int on_header(nghttp2_session *session, const nghttp2_frame *frame,
struct connectdata *conn = (struct connectdata *)userp;
struct HTTP *stream;
struct SessionHandle *data_s;
- int rv;
- int goodname;
- int goodheader;
int32_t stream_id = frame->hd.stream_id;
(void)session;
@@ -548,40 +527,13 @@ static int on_header(nghttp2_session *session, const nghttp2_frame *frame,
consequence is handled in on_frame_recv(). */
return 0;
- goodname = nghttp2_check_header_name(name, namelen);
- goodheader = nghttp2_check_header_value(value, valuelen);
-
- if(!goodname || !goodheader) {
-
- infof(data_s, "Detected bad incoming header %s%s, reset stream!\n",
- goodname?"":"name",
- goodheader?"":"value");
-
- rv = nghttp2_submit_rst_stream(session, NGHTTP2_FLAG_NONE,
- stream_id, NGHTTP2_PROTOCOL_ERROR);
-
- if(nghttp2_is_fatal(rv)) {
- return NGHTTP2_ERR_CALLBACK_FAILURE;
- }
-
- return NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE;
- }
-
if(namelen == sizeof(":status") - 1 &&
- memcmp(STATUS, name, namelen) == 0) {
-
- /* :status must appear exactly once. */
- if(stream->status_code != -1 ||
- (stream->status_code = decode_status_code(value, valuelen)) == -1) {
-
- rv = nghttp2_submit_rst_stream(session, NGHTTP2_FLAG_NONE,
- stream_id, NGHTTP2_PROTOCOL_ERROR);
- if(nghttp2_is_fatal(rv)) {
- return NGHTTP2_ERR_CALLBACK_FAILURE;
- }
-
- return NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE;
- }
+ memcmp(":status", name, namelen) == 0) {
+ /* nghttp2 guarantees :status is received first and only once, and
+ value is 3 digits status code, and decode_status_code always
+ succeeds. */
+ stream->status_code = decode_status_code(value, valuelen);
+ DEBUGASSERT(stream->status_code != -1);
Curl_add_buffer(stream->header_recvbuf, "HTTP/2.0 ", 9);
Curl_add_buffer(stream->header_recvbuf, value, valuelen);
@@ -593,31 +545,19 @@ static int on_header(nghttp2_session *session, const nghttp2_frame *frame,
stream->status_code));
return 0;
}
- else {
- /* Here we are sure that namelen > 0 because of
- nghttp2_check_header_name(). Pseudo header other than :status
- is illegal. */
- if(stream->status_code == -1 || name[0] == ':') {
- rv = nghttp2_submit_rst_stream(session, NGHTTP2_FLAG_NONE,
- stream_id, NGHTTP2_PROTOCOL_ERROR);
- if(nghttp2_is_fatal(rv)) {
- return NGHTTP2_ERR_CALLBACK_FAILURE;
- }
- return NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE;
- }
+ /* nghttp2 guarantees that namelen > 0, and :status was already
+ received, and this is not pseudo-header field . */
+ /* convert to a HTTP1-style header */
+ Curl_add_buffer(stream->header_recvbuf, name, namelen);
+ Curl_add_buffer(stream->header_recvbuf, ":", 1);
+ Curl_add_buffer(stream->header_recvbuf, value, valuelen);
+ Curl_add_buffer(stream->header_recvbuf, "\r\n", 2);
+ data_s->state.drain++;
+ Curl_expire(data_s, 1);
- /* convert to a HTTP1-style header */
- Curl_add_buffer(stream->header_recvbuf, name, namelen);
- Curl_add_buffer(stream->header_recvbuf, ":", 1);
- Curl_add_buffer(stream->header_recvbuf, value, valuelen);
- Curl_add_buffer(stream->header_recvbuf, "\r\n", 2);
- data_s->state.drain++;
- Curl_expire(data_s, 1);
-
- DEBUGF(infof(data_s, "h2 header: %.*s: %.*s\n",
- namelen, name, valuelen, value));
- }
+ DEBUGF(infof(data_s, "h2 header: %.*s: %.*s\n", namelen, name, valuelen,
+ value));
return 0; /* 0 is successful */
}
@@ -1257,20 +1197,6 @@ CURLcode Curl_http2_switched(struct connectdata *conn,
conn->recv[FIRSTSOCKET] = http2_recv;
conn->send[FIRSTSOCKET] = http2_send;
- rv = (int) ((Curl_send*)httpc->send_underlying)
- (conn, FIRSTSOCKET,
- NGHTTP2_CLIENT_CONNECTION_PREFACE,
- NGHTTP2_CLIENT_CONNECTION_PREFACE_LEN,
- &result);
- if(result)
- /* TODO: This may get CURLE_AGAIN */
- return result;
-
- if(rv != 24) {
- failf(data, "Only sent partial HTTP2 packet");
- return CURLE_SEND_ERROR;
- }
-
if(conn->data->req.upgr101 == UPGR101_RECEIVED) {
/* stream 1 is opened implicitly on upgrade */
stream->stream_id = 1;
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