Unity-Technologies
/
curl
зеркало из https://github.com/Unity-Technologies/curl.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность
curl/lib/http2.c

828 строки
25 KiB
C
Исходник Ответственный История

/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef USE_NGHTTP2
#define _MPRINTF_REPLACE
#include <curl/mprintf.h>
#include <nghttp2/nghttp2.h>
#include "urldata.h"
#include "http2.h"
#include "http.h"
#include "sendf.h"
#include "curl_base64.h"
#include "curl_memory.h"
#include "rawstr.h"
#include "multiif.h"
/* include memdebug.h last */
#include "memdebug.h"
#if (NGHTTP2_VERSION_NUM < 0x000300)
#error too old nghttp2 version, upgrade!
#endif
static int http2_perform_getsock(const struct connectdata *conn,
curl_socket_t *sock, /* points to
numsocks
number of
sockets */
int numsocks)
{
const struct http_conn *httpc = &conn->proto.httpc;
int bitmap = GETSOCK_BLANK;
(void)numsocks;
/* TODO We should check underlying socket state if it is SSL socket
because of renegotiation. */
sock[0] = conn->sock[FIRSTSOCKET];
if(nghttp2_session_want_read(httpc->h2))
bitmap |= GETSOCK_READSOCK(FIRSTSOCKET);
if(nghttp2_session_want_write(httpc->h2))
bitmap |= GETSOCK_WRITESOCK(FIRSTSOCKET);
return bitmap;
}
static int http2_getsock(struct connectdata *conn,
curl_socket_t *sock, /* points to numsocks
number of sockets */
int numsocks)
{
return http2_perform_getsock(conn, sock, numsocks);
}
/*
* HTTP2 handler interface. This isn't added to the general list of protocols
* but will be used at run-time when the protocol is dynamically switched from
* HTTP to HTTP2.
*/
const struct Curl_handler Curl_handler_http2 = {
"HTTP2", /* scheme */
ZERO_NULL, /* setup_connection */
ZERO_NULL, /* do_it */
ZERO_NULL , /* done */
ZERO_NULL, /* do_more */
ZERO_NULL, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
http2_getsock, /* proto_getsock */
http2_getsock, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
http2_perform_getsock, /* perform_getsock */
ZERO_NULL, /* disconnect */
ZERO_NULL, /* readwrite */
PORT_HTTP, /* defport */
CURLPROTO_HTTP, /* protocol */
PROTOPT_NONE /* flags */
};
const struct Curl_handler Curl_handler_http2_ssl = {
"HTTP2", /* scheme */
ZERO_NULL, /* setup_connection */
ZERO_NULL, /* do_it */
ZERO_NULL , /* done */
ZERO_NULL, /* do_more */
ZERO_NULL, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
http2_getsock, /* proto_getsock */
http2_getsock, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
http2_perform_getsock, /* perform_getsock */
ZERO_NULL, /* disconnect */
ZERO_NULL, /* readwrite */
PORT_HTTP, /* defport */
CURLPROTO_HTTP | CURLPROTO_HTTPS, /* protocol */
PROTOPT_SSL /* flags */
};
/*
* Store nghttp2 version info in this buffer, Prefix with a space. Return
* total length written.
*/
int Curl_http2_ver(char *p, size_t len)
{
nghttp2_info *h2 = nghttp2_version(0);
return snprintf(p, len, " nghttp2/%s", h2->version_str);
}
/*
* The implementation of nghttp2_send_callback type. Here we write |data| with
* size |length| to the network and return the number of bytes actually
* written. See the documentation of nghttp2_send_callback for the details.
*/
static ssize_t send_callback(nghttp2_session *h2,
const uint8_t *data, size_t length, int flags,
void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
struct http_conn *httpc = &conn->proto.httpc;
ssize_t written;
CURLcode rc;
(void)h2;
(void)flags;
rc = 0;
written = ((Curl_send*)httpc->send_underlying)(conn, FIRSTSOCKET,
data, length, &rc);
if(rc == CURLE_AGAIN) {
return NGHTTP2_ERR_WOULDBLOCK;
}
if(written == -1) {
failf(conn->data, "Failed sending HTTP2 data");
return NGHTTP2_ERR_CALLBACK_FAILURE;
}
if(!written)
return NGHTTP2_ERR_WOULDBLOCK;
return written;
}
static int on_frame_recv(nghttp2_session *session, const nghttp2_frame *frame,
void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
struct http_conn *c = &conn->proto.httpc;
int rv;
(void)session;
(void)frame;
infof(conn->data, "on_frame_recv() was called with header %x\n",
frame->hd.type);
switch(frame->hd.type) {
case NGHTTP2_HEADERS:
if(frame->headers.cat != NGHTTP2_HCAT_RESPONSE)
break;
c->bodystarted = TRUE;
Curl_add_buffer(c->header_recvbuf, "\r\n", 2);
c->nread_header_recvbuf = c->len < c->header_recvbuf->size_used ?
c->len : c->header_recvbuf->size_used;
memcpy(c->mem, c->header_recvbuf->buffer, c->nread_header_recvbuf);
c->mem += c->nread_header_recvbuf;
c->len -= c->nread_header_recvbuf;
break;
case NGHTTP2_PUSH_PROMISE:
rv = nghttp2_submit_rst_stream(session, NGHTTP2_FLAG_NONE,
frame->hd.stream_id, NGHTTP2_CANCEL);
if(nghttp2_is_fatal(rv)) {
return rv;
}
break;
}
return 0;
}
static int on_invalid_frame_recv(nghttp2_session *session,
const nghttp2_frame *frame,
nghttp2_error_code error_code, void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
(void)session;
(void)frame;
infof(conn->data, "on_invalid_frame_recv() was called, error_code = %d\n",
error_code);
return 0;
}
static int on_data_chunk_recv(nghttp2_session *session, uint8_t flags,
int32_t stream_id,
const uint8_t *data, size_t len, void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
struct http_conn *c = &conn->proto.httpc;
size_t nread;
(void)session;
(void)flags;
(void)data;
infof(conn->data, "on_data_chunk_recv() "
"len = %u, stream = %x\n", len, stream_id);
if(stream_id != c->stream_id) {
return 0;
}
nread = c->len < len ? c->len : len;
memcpy(c->mem, data, nread);
c->mem += nread;
c->len -= nread;
infof(conn->data, "%zu data written\n", nread);
if(nread < len) {
c->data = data + nread;
c->datalen = len - nread;
return NGHTTP2_ERR_PAUSE;
}
return 0;
}
static int before_frame_send(nghttp2_session *session,
const nghttp2_frame *frame,
void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
struct http_conn *c = &conn->proto.httpc;
(void)session;
(void)frame;
infof(conn->data, "before_frame_send() was called\n");
if(frame->hd.type == NGHTTP2_HEADERS &&
frame->headers.cat == NGHTTP2_HCAT_REQUEST) {
/* Get stream ID of our request */
c->stream_id = frame->hd.stream_id;
}
return 0;
}
static int on_frame_send(nghttp2_session *session,
const nghttp2_frame *frame,
void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
(void)session;
(void)frame;
infof(conn->data, "on_frame_send() was called\n");
return 0;
}
static int on_frame_not_send(nghttp2_session *session,
const nghttp2_frame *frame,
int lib_error_code, void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
(void)session;
(void)frame;
infof(conn->data, "on_frame_not_send() was called, lib_error_code = %d\n",
lib_error_code);
return 0;
}
static int on_stream_close(nghttp2_session *session, int32_t stream_id,
nghttp2_error_code error_code, void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
struct http_conn *c = &conn->proto.httpc;
(void)session;
(void)stream_id;
infof(conn->data, "on_stream_close() was called, error_code = %d\n",
error_code);
if(stream_id != c->stream_id) {
return 0;
}
c->closed = TRUE;
return 0;
}
static int on_unknown_frame_recv(nghttp2_session *session,
const uint8_t *head, size_t headlen,
const uint8_t *payload, size_t payloadlen,
void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
(void)session;
(void)head;
(void)headlen;
(void)payload;
(void)payloadlen;
infof(conn->data, "on_unknown_frame_recv() was called\n");
return 0;
}
static int on_begin_headers(nghttp2_session *session,
const nghttp2_frame *frame, void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
(void)session;
(void)frame;
infof(conn->data, "on_begin_headers() was called\n");
return 0;
}
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,
const uint8_t *value, size_t valuelen,
void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
struct http_conn *c = &conn->proto.httpc;
(void)session;
(void)frame;
if(frame->hd.stream_id != c->stream_id) {
return 0;
}
if(namelen == sizeof(":status") - 1 &&
memcmp(STATUS, name, namelen) == 0) {
snprintf(c->header_recvbuf->buffer, 13, "HTTP/2.0 %s", value);
c->header_recvbuf->buffer[12] = '\r';
return 0;
}
else {
/* 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 */
}
/*
* This is all callbacks nghttp2 calls
*/
static const nghttp2_session_callbacks callbacks = {
send_callback, /* nghttp2_send_callback */
NULL, /* nghttp2_recv_callback */
on_frame_recv, /* nghttp2_on_frame_recv_callback */
on_invalid_frame_recv, /* nghttp2_on_invalid_frame_recv_callback */
on_data_chunk_recv, /* nghttp2_on_data_chunk_recv_callback */
before_frame_send, /* nghttp2_before_frame_send_callback */
on_frame_send, /* nghttp2_on_frame_send_callback */
on_frame_not_send, /* nghttp2_on_frame_not_send_callback */
on_stream_close, /* nghttp2_on_stream_close_callback */
on_unknown_frame_recv, /* nghttp2_on_unknown_frame_recv_callback */
on_begin_headers, /* nghttp2_on_begin_headers_callback */
on_header /* nghttp2_on_header_callback */
#if NGHTTP2_VERSION_NUM >= 0x000400
, NULL /* nghttp2_select_padding_callback */
#endif
};
static ssize_t data_source_read_callback(nghttp2_session *session,
int32_t stream_id,
uint8_t *buf, size_t length,
int *eof,
nghttp2_data_source *source,
void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
struct http_conn *c = &conn->proto.httpc;
size_t nread;
(void)session;
(void)stream_id;
(void)eof;
(void)source;
nread = c->upload_len < length ? c->upload_len : length;
if(nread > 0) {
memcpy(buf, c->upload_mem, nread);
c->upload_mem += nread;
c->upload_len -= nread;
c->upload_left -= nread;
}
if(c->upload_left == 0)
*eof = 1;
else if(nread == 0)
return NGHTTP2_ERR_DEFERRED;
return nread;
}
/*
* The HTTP2 settings we send in the Upgrade request
*/
static nghttp2_settings_entry settings[] = {
{ NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS, 100 },
{ NGHTTP2_SETTINGS_INITIAL_WINDOW_SIZE, NGHTTP2_INITIAL_WINDOW_SIZE },
};
#define H2_BUFSIZE 4096
/*
* Initialize nghttp2 for a Curl connection
*/
CURLcode Curl_http2_init(struct connectdata *conn)
{
if(!conn->proto.httpc.h2) {
int rc;
conn->proto.httpc.inbuf = malloc(H2_BUFSIZE);
if(conn->proto.httpc.inbuf == NULL)
return CURLE_OUT_OF_MEMORY;
/* The nghttp2 session is not yet setup, do it */
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 */
}
}
return CURLE_OK;
}
/*
* Send a request using http2
*/
CURLcode Curl_http2_send_request(struct connectdata *conn)
{
(void)conn;
return CURLE_OK;
}
/*
* 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;
Curl_http2_init(conn);
/* 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_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: %s\r\n"
"HTTP2-Settings: %s\r\n",
NGHTTP2_PROTO_VERSION_ID, base64);
free(base64);
k->upgr101 = UPGR101_REQUESTED;
return result;
}
/*
* If the read would block (EWOULDBLOCK) we return -1. Otherwise we return
* a regular CURLcode value.
*/
static ssize_t http2_recv(struct connectdata *conn, int sockindex,
char *mem, size_t len, CURLcode *err)
{
CURLcode rc;
ssize_t rv;
ssize_t nread;
struct http_conn *httpc = &conn->proto.httpc;
(void)sockindex; /* we always do HTTP2 on sockindex 0 */
if(httpc->closed) {
return 0;
}
/* Nullify here because we call nghttp2_session_send() and they
might refer to the old buffer. */
httpc->upload_mem = NULL;
httpc->upload_len = 0;
if(httpc->bodystarted &&
httpc->nread_header_recvbuf < httpc->header_recvbuf->size_used) {
size_t left =
httpc->header_recvbuf->size_used - httpc->nread_header_recvbuf;
size_t ncopy = len < left ? len : left;
memcpy(mem, httpc->header_recvbuf->buffer + httpc->nread_header_recvbuf,
ncopy);
httpc->nread_header_recvbuf += ncopy;
return ncopy;
}
if(httpc->data) {
nread = len < httpc->datalen ? len : httpc->datalen;
memcpy(mem, httpc->data, nread);
httpc->data += nread;
httpc->datalen -= nread;
infof(conn->data, "%zu data written\n", nread);
if(httpc->datalen == 0) {
httpc->data = NULL;
httpc->datalen = 0;
}
return nread;
}
conn->proto.httpc.mem = mem;
conn->proto.httpc.len = len;
infof(conn->data, "http2_recv: %d bytes buffer\n",
conn->proto.httpc.len);
rc = 0;
nread = ((Curl_recv*)httpc->recv_underlying)(conn, FIRSTSOCKET,
httpc->inbuf, H2_BUFSIZE, &rc);
if(rc == CURLE_AGAIN) {
*err = rc;
return -1;
}
if(nread == -1) {
failf(conn->data, "Failed receiving HTTP2 data");
*err = rc;
return 0;
}
infof(conn->data, "nread=%zd\n", nread);
rv = nghttp2_session_mem_recv(httpc->h2,
(const uint8_t *)httpc->inbuf, nread);
if(nghttp2_is_fatal((int)rv)) {
failf(conn->data, "nghttp2_session_mem_recv() returned %d:%s\n",
rv, nghttp2_strerror((int)rv));
*err = CURLE_RECV_ERROR;
return 0;
}
infof(conn->data, "nghttp2_session_mem_recv() returns %zd\n", rv);
/* Always send pending frames in nghttp2 session, because
nghttp2_session_mem_recv() may queue new frame */
rv = nghttp2_session_send(httpc->h2);
if(rv != 0) {
*err = CURLE_SEND_ERROR;
return 0;
}
if(len != httpc->len) {
return len - conn->proto.httpc.len;
}
/* If stream is closed, return 0 to signal the http routine to close
the connection */
if(httpc->closed) {
return 0;
}
*err = CURLE_AGAIN;
return -1;
}
#define MAKE_NV(k, v) \
{ (uint8_t*)k, (uint8_t*)v, sizeof(k) - 1, sizeof(v) - 1 }
#define MAKE_NV2(k, v, vlen) \
{ (uint8_t*)k, (uint8_t*)v, sizeof(k) - 1, vlen }
/* return number of received (decrypted) bytes */
static ssize_t http2_send(struct connectdata *conn, int sockindex,
const void *mem, size_t len, CURLcode *err)
{
/*
* BIG TODO: Currently, we send request in this function, but this
* function is also used to send request body. It would be nice to
* add dedicated function for request.
*/
int rv;
struct http_conn *httpc = &conn->proto.httpc;
nghttp2_nv *nva;
size_t nheader;
size_t i;
char *hdbuf = (char*)mem;
char *end;
nghttp2_data_provider data_prd;
(void)sockindex;
infof(conn->data, "http2_send len=%zu\n", len);
if(httpc->stream_id != -1) {
/* If stream_id != -1, we have dispatched request HEADERS, and now
are going to send or sending request body in DATA frame */
httpc->upload_mem = mem;
httpc->upload_len = len;
nghttp2_session_resume_data(httpc->h2, httpc->stream_id);
rv = nghttp2_session_send(httpc->h2);
if(nghttp2_is_fatal(rv)) {
*err = CURLE_SEND_ERROR;
return -1;
}
return len - httpc->upload_len;
}
/* Calculate number of headers contained in [mem, mem + len) */
/* Here, we assume the curl http code generate *correct* HTTP header
field block */
nheader = 0;
for(i = 0; i < len; ++i) {
if(hdbuf[i] == 0x0a) {
++nheader;
}
}
/* We counted additional 2 \n in the first and last line. We need 3
new headers: :method, :path and :scheme. Therefore we need one
more space. */
nheader += 1;
nva = malloc(sizeof(nghttp2_nv) * nheader);
if(nva == NULL) {
*err = CURLE_OUT_OF_MEMORY;
return -1;
}
/* Extract :method, :path from request line */
end = strchr(hdbuf, ' ');
nva[0].name = (unsigned char *)":method";
nva[0].namelen = (uint16_t)strlen((char *)nva[0].name);
nva[0].value = (unsigned char *)hdbuf;
nva[0].valuelen = (uint16_t)(end - hdbuf);
hdbuf = end + 1;
end = strchr(hdbuf, ' ');
nva[1].name = (unsigned char *)":path";
nva[1].namelen = (uint16_t)strlen((char *)nva[1].name);
nva[1].value = (unsigned char *)hdbuf;
nva[1].valuelen = (uint16_t)(end - hdbuf);
nva[2].name = (unsigned char *)":scheme";
nva[2].namelen = (uint16_t)strlen((char *)nva[2].name);
if(conn->handler->flags & PROTOPT_SSL)
nva[2].value = (unsigned char *)"https";
else
nva[2].value = (unsigned char *)"http";
nva[2].valuelen = (uint16_t)strlen((char *)nva[2].value);
hdbuf = strchr(hdbuf, 0x0a);
++hdbuf;
for(i = 3; i < nheader; ++i) {
end = strchr(hdbuf, ':');
assert(end);
if(end - hdbuf == 4 && Curl_raw_nequal("host", hdbuf, 4)) {
nva[i].name = (unsigned char *)":authority";
nva[i].namelen = (uint16_t)strlen((char *)nva[i].name);
}
else {
nva[i].name = (unsigned char *)hdbuf;
nva[i].namelen = (uint16_t)(end - hdbuf);
}
hdbuf = end + 1;
for(; *hdbuf == ' '; ++hdbuf);
end = strchr(hdbuf, 0x0d);
assert(end);
nva[i].value = (unsigned char *)hdbuf;
nva[i].valuelen = (uint16_t)(end - hdbuf);
hdbuf = end + 2;
/* Inspect Content-Length header field and retrieve the request
entity length so that we can set END_STREAM to the last DATA
frame. */
if(nva[i].namelen == 14 &&
Curl_raw_nequal("content-length", (char*)nva[i].name, 14)) {
size_t j;
for(j = 0; j < nva[i].valuelen; ++j) {
httpc->upload_left *= 10;
httpc->upload_left += nva[i].value[j] - '0';
}
infof(conn->data, "request content-length=%zu\n", httpc->upload_left);
}
}
switch(conn->data->set.httpreq) {
case HTTPREQ_POST:
case HTTPREQ_POST_FORM:
case HTTPREQ_PUT:
data_prd.read_callback = data_source_read_callback;
data_prd.source.ptr = NULL;
rv = nghttp2_submit_request(httpc->h2, 0, nva, nheader, &data_prd, NULL);
break;
default:
rv = nghttp2_submit_request(httpc->h2, 0, nva, nheader, NULL, NULL);
}
free(nva);
if(rv != 0) {
*err = CURLE_SEND_ERROR;
return -1;
}
rv = nghttp2_session_send(httpc->h2);
if(rv != 0) {
*err = CURLE_SEND_ERROR;
return -1;
}
if(httpc->stream_id != -1) {
/* If whole HEADERS frame was sent off to the underlying socket,
the nghttp2 library calls data_source_read_callback. But only
it found that no data available, so it deferred the DATA
transmission. Which means that nghttp2_session_want_write()
returns 0 on http2_perform_getsock(), which results that no
writable socket check is performed. To workaround this, we
issue nghttp2_session_resume_data() here to bring back DATA
transmission from deferred state. */
nghttp2_session_resume_data(httpc->h2, httpc->stream_id);
}
return len;
}
int Curl_http2_switched(struct connectdata *conn)
{
int rv;
CURLcode rc;
struct http_conn *httpc = &conn->proto.httpc;
/* we are switched! */
/* Don't know this is needed here at this moment. Original
handler->flags is still useful. */
if(conn->handler->flags & PROTOPT_SSL)
conn->handler = &Curl_handler_http2_ssl;
else
conn->handler = &Curl_handler_http2;
httpc->recv_underlying = (recving)conn->recv[FIRSTSOCKET];
httpc->send_underlying = (sending)conn->send[FIRSTSOCKET];
conn->recv[FIRSTSOCKET] = http2_recv;
conn->send[FIRSTSOCKET] = http2_send;
infof(conn->data, "We have switched to HTTP2\n");
httpc->bodystarted = FALSE;
httpc->closed = FALSE;
httpc->header_recvbuf = Curl_add_buffer_init();
httpc->nread_header_recvbuf = 0;
httpc->data = NULL;
httpc->datalen = 0;
httpc->upload_left = 0;
httpc->upload_mem = NULL;
httpc->upload_len = 0;
conn->httpversion = 20;
/* Put place holder for status line */
Curl_add_buffer(httpc->header_recvbuf, "HTTP/2.0 200\r\n", 14);
/* TODO: May get CURLE_AGAIN */
rv = (int) ((Curl_send*)httpc->send_underlying)
(conn, FIRSTSOCKET,
NGHTTP2_CLIENT_CONNECTION_HEADER,
NGHTTP2_CLIENT_CONNECTION_HEADER_LEN,
&rc);
assert(rv == 24);
if(conn->data->req.upgr101 == UPGR101_RECEIVED) {
/* stream 1 is opened implicitly on upgrade */
httpc->stream_id = 1;
/* queue SETTINGS frame (again) */
rv = nghttp2_session_upgrade(httpc->h2, httpc->binsettings,
httpc->binlen, NULL);
if(rv != 0) {
failf(conn->data, "nghttp2_session_upgrade() failed: %s(%d)",
nghttp2_strerror(rv), rv);
return -1;
}
}
else {
/* stream ID is unknown at this point */
httpc->stream_id = -1;
rv = nghttp2_submit_settings(httpc->h2, NGHTTP2_FLAG_NONE, NULL, 0);
if(rv != 0) {
failf(conn->data, "nghttp2_submit_settings() failed: %s(%d)",
nghttp2_strerror(rv), rv);
return -1;
}
}
return 0;
}
#endif
Ссылка в новой задаче Показать git blame Копировать постоянную ссылку