static int http_close(git_smart_subtransport *subtransport)
{
http_subtransport *t = (http_subtransport *) subtransport;
clear_parser_state(t);
if (t->socket.socket) {
gitno_close(&t->socket);
memset(&t->socket, 0x0, sizeof(gitno_socket));
}
if (t->cred) {
t->cred->free(t->cred);
t->cred = NULL;
}
if (t->url_cred) {
t->url_cred->free(t->url_cred);
t->url_cred = NULL;
}
gitno_connection_data_free_ptrs(&t->connection_data);
return 0;
}
static int http_close(git_smart_subtransport *subtransport)
{
http_subtransport *t = (http_subtransport *) subtransport;
clear_parser_state(t);
if (t->socket.socket) {
gitno_close(&t->socket);
memset(&t->socket, 0x0, sizeof(gitno_socket));
}
if (t->cred) {
t->cred->free(t->cred);
t->cred = NULL;
}
if (t->host) {
git__free(t->host);
t->host = NULL;
}
if (t->port) {
git__free(t->port);
t->port = NULL;
}
return 0;
}
static int http_stream_write_single(
git_smart_subtransport_stream *stream,
const char *buffer,
size_t len)
{
http_stream *s = (http_stream *)stream;
http_subtransport *t = OWNING_SUBTRANSPORT(s);
git_buf request = GIT_BUF_INIT;
assert(t->connected);
if (s->sent_request) {
giterr_set(GITERR_NET, "Subtransport configured for only one write");
return -1;
}
clear_parser_state(t);
if (gen_request(&request, s, len) < 0) {
giterr_set(GITERR_NET, "Failed to generate request");
return -1;
}
if (gitno_send(&t->socket, request.ptr, request.size, 0) < 0)
goto on_error;
if (len && gitno_send(&t->socket, buffer, len, 0) < 0)
goto on_error;
git_buf_free(&request);
s->sent_request = 1;
return 0;
on_error:
git_buf_free(&request);
return -1;
}
static int http_stream_write_chunked(
git_smart_subtransport_stream *stream,
const char *buffer,
size_t len)
{
http_stream *s = (http_stream *)stream;
http_subtransport *t = OWNING_SUBTRANSPORT(s);
assert(t->connected);
/* Send the request, if necessary */
if (!s->sent_request) {
git_buf request = GIT_BUF_INIT;
clear_parser_state(t);
if (gen_request(&request, s, 0) < 0) {
giterr_set(GITERR_NET, "Failed to generate request");
return -1;
}
if (gitno_send(&t->socket, request.ptr, request.size, 0) < 0) {
git_buf_free(&request);
return -1;
}
git_buf_free(&request);
s->sent_request = 1;
}
if (len > CHUNK_SIZE) {
/* Flush, if necessary */
if (s->chunk_buffer_len > 0) {
if (write_chunk(&t->socket, s->chunk_buffer, s->chunk_buffer_len) < 0)
return -1;
s->chunk_buffer_len = 0;
}
/* Write chunk directly */
if (write_chunk(&t->socket, buffer, len) < 0)
return -1;
}
else {
/* Append as much to the buffer as we can */
int count = min(CHUNK_SIZE - s->chunk_buffer_len, len);
if (!s->chunk_buffer)
s->chunk_buffer = git__malloc(CHUNK_SIZE);
memcpy(s->chunk_buffer + s->chunk_buffer_len, buffer, count);
s->chunk_buffer_len += count;
buffer += count;
len -= count;
/* Is the buffer full? If so, then flush */
if (CHUNK_SIZE == s->chunk_buffer_len) {
if (write_chunk(&t->socket, s->chunk_buffer, s->chunk_buffer_len) < 0)
return -1;
s->chunk_buffer_len = 0;
if (len > 0) {
memcpy(s->chunk_buffer, buffer, len);
s->chunk_buffer_len = len;
}
}
}
return 0;
}
static int http_stream_read(
git_smart_subtransport_stream *stream,
char *buffer,
size_t buf_size,
size_t *bytes_read)
{
http_stream *s = (http_stream *)stream;
http_subtransport *t = OWNING_SUBTRANSPORT(s);
parser_context ctx;
size_t bytes_parsed;
replay:
*bytes_read = 0;
assert(t->connected);
if (!s->sent_request) {
git_buf request = GIT_BUF_INIT;
clear_parser_state(t);
if (gen_request(&request, s, 0) < 0) {
giterr_set(GITERR_NET, "Failed to generate request");
return -1;
}
if (gitno_send(&t->socket, request.ptr, request.size, 0) < 0) {
git_buf_free(&request);
return -1;
}
git_buf_free(&request);
s->sent_request = 1;
}
if (!s->received_response) {
if (s->chunked) {
assert(s->verb == post_verb);
/* Flush, if necessary */
if (s->chunk_buffer_len > 0 &&
write_chunk(&t->socket, s->chunk_buffer, s->chunk_buffer_len) < 0)
return -1;
s->chunk_buffer_len = 0;
/* Write the final chunk. */
if (gitno_send(&t->socket, "0\r\n\r\n", 5, 0) < 0)
return -1;
}
s->received_response = 1;
}
while (!*bytes_read && !t->parse_finished) {
t->parse_buffer.offset = 0;
if (gitno_recv(&t->parse_buffer) < 0)
return -1;
/* This call to http_parser_execute will result in invocations of the
* on_* family of callbacks. The most interesting of these is
* on_body_fill_buffer, which is called when data is ready to be copied
* into the target buffer. We need to marshal the buffer, buf_size, and
* bytes_read parameters to this callback. */
ctx.t = t;
ctx.s = s;
ctx.buffer = buffer;
ctx.buf_size = buf_size;
ctx.bytes_read = bytes_read;
/* Set the context, call the parser, then unset the context. */
t->parser.data = &ctx;
bytes_parsed = http_parser_execute(&t->parser,
&t->settings,
t->parse_buffer.data,
t->parse_buffer.offset);
t->parser.data = NULL;
/* If there was a handled authentication failure, then parse_error
* will have signaled us that we should replay the request. */
if (PARSE_ERROR_REPLAY == t->parse_error) {
s->sent_request = 0;
if (http_connect(t) < 0)
return -1;
goto replay;
}
if (t->parse_error < 0)
return -1;
if (bytes_parsed != t->parse_buffer.offset) {
giterr_set(GITERR_NET,
"HTTP parser error: %s",
http_errno_description((enum http_errno)t->parser.http_errno));
return -1;
}
}
return 0;
}
