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Request body: $content_length variable to honor real body size.

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This allows to handle requests with chunked body by fastcgi and uwsgi
modules, and also simplifies handling of various request body modifications.
This commit is contained in:
Maxim Dounin 2012-11-21 01:05:08 +00:00
parent 9a483c8373
commit 0ce5a3aa18
1 changed files with 37 additions and 2 deletions
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39
src/http/ngx_http_variables.c
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@ -39,6 +39,8 @@ static ngx_int_t ngx_http_variable_tcpinfo(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data);
#endif
static ngx_int_t ngx_http_variable_content_length(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data);
static ngx_int_t ngx_http_variable_host(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data);
static ngx_int_t ngx_http_variable_binary_remote_addr(ngx_http_request_t *r,
@ -153,8 +155,8 @@ static ngx_http_variable_t ngx_http_core_variables[] = {
{ ngx_string("http_cookie"), NULL, ngx_http_variable_headers,
offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 },
{ ngx_string("content_length"), NULL, ngx_http_variable_header,
offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 },
{ ngx_string("content_length"), NULL, ngx_http_variable_content_length,
0, 0, 0 },
{ ngx_string("content_type"), NULL, ngx_http_variable_header,
offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 },
@ -989,6 +991,39 @@ ngx_http_variable_tcpinfo(ngx_http_request_t *r, ngx_http_variable_value_t *v,
#endif
static ngx_int_t
ngx_http_variable_content_length(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data)
{
u_char *p;
if (r->headers_in.content_length) {
v->len = r->headers_in.content_length->value.len;
v->data = r->headers_in.content_length->value.data;
v->valid = 1;
v->no_cacheable = 0;
v->not_found = 0;
} else if (r->headers_in.content_length_n >= 0) {
p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN);
if (p == NULL) {
return NGX_ERROR;
}
v->len = ngx_sprintf(p, "%O", r->headers_in.content_length_n) - p;
v->data = p;
v->valid = 1;
v->no_cacheable = 0;
v->not_found = 0;
} else {
v->not_found = 1;
}
return NGX_OK;
}
static ngx_int_t
ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v,
uintptr_t data)