/* 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,
const uint8_t *value, size_t valuelen,
uint8_t flags,
void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
struct HTTP *stream;
struct SessionHandle *data_s;
int32_t stream_id = frame->hd.stream_id;
(void)session;
(void)frame;
(void)flags;
/* Ignore PUSH_PROMISE for now */
if(frame->hd.type != NGHTTP2_HEADERS) {
return 0;
}
DEBUGASSERT(stream_id); /* should never be a zero stream ID here */
/* get the stream from the hash based on Stream ID */
data_s = Curl_hash_pick(&conn->proto.httpc.streamsh, &stream_id,
sizeof(stream_id));
if(!data_s) {
/* Receiving a Stream ID not in the hash should not happen, this is an
internal error more than anything else! */
failf(conn->data, "Received frame on Stream ID: %x not in stream hash!",
stream_id);
return NGHTTP2_ERR_CALLBACK_FAILURE;
}
stream = data_s->req.protop;
if(stream->bodystarted)
/* Ignore trailer or HEADERS not mapped to HTTP semantics. The
consequence is handled in on_frame_recv(). */
return 0;
if(namelen == sizeof(":status") - 1 &&
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);
Curl_add_buffer(stream->header_recvbuf, "\r\n", 2);
data_s->state.drain++;
Curl_expire(data_s, 1);
DEBUGF(infof(data_s, "h2 status: HTTP/2 %03d\n",
stream->status_code));
return 0;
}
/* 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);
DEBUGF(infof(data_s, "h2 header: %.*s: %.*s\n", namelen, name, valuelen,
value));
return 0; /* 0 is successful */
}
/* 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,
const uint8_t *value, size_t valuelen,
uint8_t flags,
void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
struct http_conn *c = &conn->proto.httpc;
int rv;
(void)session;
(void)frame;
(void)flags;
if(frame->hd.stream_id != c->stream_id) {
return 0;
}
if(c->bodystarted) {
/* Ignore trailer or HEADERS not mapped to HTTP semantics. The
consequence is handled in on_frame_recv(). */
return 0;
}
if(!nghttp2_check_header_name(name, namelen) ||
!nghttp2_check_header_value(value, valuelen)) {
rv = nghttp2_submit_rst_stream(session, NGHTTP2_FLAG_NONE,
frame->hd.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(c->status_code != -1 ||
(c->status_code = decode_status_code(value, valuelen)) == -1) {
rv = nghttp2_submit_rst_stream(session, NGHTTP2_FLAG_NONE,
frame->hd.stream_id,
NGHTTP2_PROTOCOL_ERROR);
if(nghttp2_is_fatal(rv)) {
return NGHTTP2_ERR_CALLBACK_FAILURE;
}
return NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE;
}
Curl_add_buffer(c->header_recvbuf, "HTTP/2.0 ", 9);
Curl_add_buffer(c->header_recvbuf, value, valuelen);
Curl_add_buffer(c->header_recvbuf, "\r\n", 2);
return 0;
}
else {
/* Here we are sure that namelen > 0 because of
nghttp2_check_header_name(). Pseudo header other than :status
is illegal. */
if(c->status_code == -1 || name[0] == ':') {
rv = nghttp2_submit_rst_stream(session, NGHTTP2_FLAG_NONE,
frame->hd.stream_id,
NGHTTP2_PROTOCOL_ERROR);
if(nghttp2_is_fatal(rv)) {
return NGHTTP2_ERR_CALLBACK_FAILURE;
}
return NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE;
}
/* convert to a HTTP1-style header */
infof(conn->data, "got header\n");
Curl_add_buffer(c->header_recvbuf, name, namelen);
Curl_add_buffer(c->header_recvbuf, ":", 1);
Curl_add_buffer(c->header_recvbuf, value, valuelen);
Curl_add_buffer(c->header_recvbuf, "\r\n", 2);
}
return 0; /* 0 is successful */
}
/* 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,
const uint8_t *value, size_t valuelen,
uint8_t flags,
void *userp)
{
struct HTTP *stream;
struct SessionHandle *data_s;
int32_t stream_id = frame->hd.stream_id;
(void)flags;
(void)userp;
DEBUGASSERT(stream_id); /* should never be a zero stream ID here */
/* get the stream from the hash based on Stream ID */
data_s = nghttp2_session_get_stream_user_data(session, stream_id);
if(!data_s)
/* Receiving a Stream ID not in the hash should not happen, this is an
internal error more than anything else! */
return NGHTTP2_ERR_CALLBACK_FAILURE;
stream = data_s->req.protop;
if(!stream) {
failf(data_s, "Internal NULL stream! 5\n");
return NGHTTP2_ERR_CALLBACK_FAILURE;
}
if(stream->bodystarted)
/* Ignore trailer or HEADERS not mapped to HTTP semantics. The
consequence is handled in on_frame_recv(). */
return 0;
/* Store received PUSH_PROMISE headers to be used when the subsequent
PUSH_PROMISE callback comes */
if(frame->hd.type == NGHTTP2_PUSH_PROMISE) {
char *h;
if(!stream->push_headers) {
stream->push_headers_alloc = 10;
stream->push_headers = malloc(stream->push_headers_alloc *
sizeof(char *));
stream->push_headers_used = 0;
}
else if(stream->push_headers_used ==
stream->push_headers_alloc) {
char **headp;
stream->push_headers_alloc *= 2;
headp = realloc(stream->push_headers,
stream->push_headers_alloc * sizeof(char *));
if(!headp) {
free(stream->push_headers);
stream->push_headers = NULL;
return NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE;
}
stream->push_headers = headp;
}
h = aprintf("%s:%s", name, value);
if(h)
stream->push_headers[stream->push_headers_used++] = h;
return 0;
}
if(namelen == sizeof(":status") - 1 &&
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);
Curl_add_buffer(stream->header_recvbuf, "\r\n", 2);
data_s->state.drain++;
Curl_expire(data_s, 1);
DEBUGF(infof(data_s, "h2 status: HTTP/2 %03d\n",
stream->status_code));
return 0;
}
/* 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);
DEBUGF(infof(data_s, "h2 header: %.*s: %.*s\n", namelen, name, valuelen,
value));
return 0; /* 0 is successful */
}
