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send "100 Continue" just before reading request body

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This commit is contained in:
Igor Sysoev 2008-12-26 13:43:42 +00:00
parent 2aae701ab7
commit 303df47fcb
3 changed files with 63 additions and 54 deletions
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55
src/http/ngx_http_core_module.c
View File

@ -23,7 +23,6 @@ typedef struct {
static ngx_int_t ngx_http_core_find_location(ngx_http_request_t *r);
static ngx_int_t ngx_http_core_find_static_location(ngx_http_request_t *r,
ngx_http_location_tree_node_t *node);
static ngx_int_t ngx_http_core_send_continue(ngx_http_request_t *r);
static ngx_int_t ngx_http_core_preconfiguration(ngx_conf_t *cf);
static void *ngx_http_core_create_main_conf(ngx_conf_t *cf);
@ -818,7 +817,7 @@ ngx_http_core_find_config_phase(ngx_http_request_t *r,
{
u_char *p;
size_t len;
ngx_int_t rc, expect;
ngx_int_t rc;
ngx_http_core_loc_conf_t *clcf;
r->content_handler = NULL;
@ -862,18 +861,6 @@ ngx_http_core_find_config_phase(ngx_http_request_t *r,
return NGX_OK;
}
if (r->headers_in.expect
&& r == r->main
&& r->http_version > NGX_HTTP_VERSION_10)
{
expect = ngx_http_core_send_continue(r);
if (expect != NGX_OK) {
ngx_http_finalize_request(r, expect);
return NGX_OK;
}
}
if (rc == NGX_DONE) {
r->headers_out.location = ngx_list_push(&r->headers_out.headers);
if (r->headers_out.location == NULL) {
@ -1493,45 +1480,6 @@ ngx_http_core_find_static_location(ngx_http_request_t *r,
}
static ngx_int_t
ngx_http_core_send_continue(ngx_http_request_t *r)
{
ngx_int_t n;
ngx_str_t *expect;
if (r->expect_tested) {
return NGX_OK;
}
r->expect_tested = 1;
expect = &r->headers_in.expect->value;
if (expect->len != sizeof("100-continue") - 1
|| ngx_strncasecmp(expect->data, (u_char *) "100-continue",
sizeof("100-continue") - 1)
!= 0)
{
return NGX_OK;
}
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"send 100 Continue");
n = r->connection->send(r->connection,
(u_char *) "HTTP/1.1 100 Continue" CRLF CRLF,
sizeof("HTTP/1.1 100 Continue" CRLF CRLF) - 1);
if (n == sizeof("HTTP/1.1 100 Continue" CRLF CRLF) - 1) {
return NGX_OK;
}
/* we assume that such small packet should be send successfully */
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
void *
ngx_http_test_content_type(ngx_http_request_t *r, ngx_hash_t *types_hash)
{
@ -2128,6 +2076,7 @@ ngx_http_subrequest(ngx_http_request_t *r,
sr->internal = 1;
sr->discard_body = r->discard_body;
sr->expect_tested = 1;
sr->main_filter_need_in_memory = r->main_filter_need_in_memory;
sr->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;

51
src/http/ngx_http_request_body.c
View File

@ -15,6 +15,7 @@ static ngx_int_t ngx_http_write_request_body(ngx_http_request_t *r,
ngx_chain_t *body);
static void ngx_http_read_discarded_request_body_handler(ngx_http_request_t *r);
static ngx_int_t ngx_http_read_discarded_request_body(ngx_http_request_t *r);
static ngx_int_t ngx_http_test_expect(ngx_http_request_t *r);
/*
@ -41,6 +42,10 @@ ngx_http_read_client_request_body(ngx_http_request_t *r,
return NGX_OK;
}
if (ngx_http_test_expect(r) != NGX_OK) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
rb = ngx_pcalloc(r->pool, sizeof(ngx_http_request_body_t));
if (rb == NULL) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
@ -433,6 +438,10 @@ ngx_http_discard_request_body(ngx_http_request_t *r)
return NGX_OK;
}
if (ngx_http_test_expect(r) != NGX_OK) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
rev = r->connection->read;
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
@ -581,3 +590,45 @@ ngx_http_read_discarded_request_body(ngx_http_request_t *r)
return NGX_AGAIN;
}
static ngx_int_t
ngx_http_test_expect(ngx_http_request_t *r)
{
ngx_int_t n;
ngx_str_t *expect;
if (r->expect_tested
|| r->headers_in.expect == NULL
|| r->http_version < NGX_HTTP_VERSION_11)
{
return NGX_OK;
}
r->expect_tested = 1;
expect = &r->headers_in.expect->value;
if (expect->len != sizeof("100-continue") - 1
|| ngx_strncasecmp(expect->data, (u_char *) "100-continue",
sizeof("100-continue") - 1)
!= 0)
{
return NGX_OK;
}
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"send 100 Continue");
n = r->connection->send(r->connection,
(u_char *) "HTTP/1.1 100 Continue" CRLF CRLF,
sizeof("HTTP/1.1 100 Continue" CRLF CRLF) - 1);
if (n == sizeof("HTTP/1.1 100 Continue" CRLF CRLF) - 1) {
return NGX_OK;
}
/* we assume that such small packet should be send successfully */
return NGX_ERROR;
}

11
src/http/ngx_http_special_response.c
View File

@ -379,6 +379,8 @@ ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error)
}
}
r->expect_tested = 1;
if (ngx_http_discard_request_body(r) != NGX_OK) {
error = NGX_HTTP_INTERNAL_SERVER_ERROR;
}
@ -431,11 +433,18 @@ static ngx_int_t
ngx_http_send_error_page(ngx_http_request_t *r, ngx_http_err_page_t *err_page)
{
u_char ch, *p, *last;
ngx_int_t overwrite;
ngx_str_t *uri, *args, u, a;
ngx_table_elt_t *location;
ngx_http_core_loc_conf_t *clcf;
r->err_status = err_page->overwrite;
overwrite = err_page->overwrite;
if (overwrite && overwrite != NGX_HTTP_OK) {
r->expect_tested = 1;
}
r->err_status = overwrite;
r->zero_in_uri = 0;