/*
* Append headers to ask for a HTTP1.1 to HTTP2 upgrade.
*/
CURLcode Curl_http2_request_upgrade(Curl_send_buffer *req,
struct connectdata *conn)
{
CURLcode result;
ssize_t binlen;
char *base64;
size_t blen;
struct SingleRequest *k = &conn->data->req;
uint8_t *binsettings = conn->proto.httpc.binsettings;
result = Curl_http2_init(conn);
if(result)
return result;
result = Curl_http2_setup(conn);
if(result)
return result;
/* As long as we have a fixed set of settings, we don't have to dynamically
* figure out the base64 strings since it'll always be the same. However,
* the settings will likely not be fixed every time in the future.
*/
/* this returns number of bytes it wrote */
binlen = nghttp2_pack_settings_payload(binsettings, H2_BINSETTINGS_LEN,
settings,
sizeof(settings)/sizeof(settings[0]));
if(!binlen) {
failf(conn->data, "nghttp2 unexpectedly failed on pack_settings_payload");
return CURLE_FAILED_INIT;
}
conn->proto.httpc.binlen = binlen;
result = Curl_base64url_encode(conn->data, (const char *)binsettings, binlen,
&base64, &blen);
if(result)
return result;
result = Curl_add_bufferf(req,
"Connection: Upgrade, HTTP2-Settings\r\n"
"Upgrade: %s\r\n"
"HTTP2-Settings: %s\r\n",
NGHTTP2_CLEARTEXT_PROTO_VERSION_ID, base64);
Curl_safefree(base64);
k->upgr101 = UPGR101_REQUESTED;
return result;
}
/*
* Append headers to ask for a HTTP1.1 to HTTP2 upgrade.
*/
CURLcode Curl_http2_request(Curl_send_buffer *req,
struct connectdata *conn)
{
uint8_t binsettings[80];
CURLcode result;
ssize_t binlen;
char *base64;
size_t blen;
if(!conn->proto.httpc.h2) {
/* The nghttp2 session is not yet setup, do it */
int rc = nghttp2_session_client_new(&conn->proto.httpc.h2,
&callbacks, &conn);
if(rc) {
failf(conn->data, "Couldn't initialize nghttp2!");
return CURLE_OUT_OF_MEMORY; /* most likely at least */
}
}
/* As long as we have a fixed set of settings, we don't have to dynamically
* figure out the base64 strings since it'll always be the same. However,
* the settings will likely not be fixed every time in the future.
*/
/* this returns number of bytes it wrote */
binlen = nghttp2_pack_settings_payload(binsettings, settings,
sizeof(settings)/sizeof(settings[0]));
if(!binlen) {
failf(conn->data, "nghttp2 unexpectedly failed on pack_settings_payload");
return CURLE_FAILED_INIT;
}
result = Curl_base64_encode(conn->data, (const char *)binsettings, binlen,
&base64, &blen);
if(result)
return result;
result = Curl_add_bufferf(req,
"Connection: Upgrade, HTTP2-Settings\r\n"
"Upgrade: HTTP/2.0\r\n"
"HTTP2-Settings: %s\r\n", base64);
free(base64);
return result;
}
