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

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 989e1ece6f
commit 440081609e
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)