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support X-Accel-Expires in cache

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This commit is contained in:
Igor Sysoev 2009-04-03 14:33:34 +00:00
parent 56f86505db
commit 0eea247b1d
1 changed files with 63 additions and 8 deletions
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71
src/http/ngx_http_upstream.c
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@ -74,6 +74,8 @@ static ngx_int_t
ngx_table_elt_t *h, ngx_uint_t offset);
static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r,
ngx_table_elt_t *h, ngx_uint_t offset);
static ngx_int_t ngx_http_upstream_process_accel_expires(ngx_http_request_t *r,
ngx_table_elt_t *h, ngx_uint_t offset);
static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r,
ngx_table_elt_t *h, ngx_uint_t offset);
static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r,
@ -214,7 +216,7 @@ ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = {
ngx_http_upstream_copy_header_line, 0, 0 },
{ ngx_string("X-Accel-Expires"),
ngx_http_upstream_process_header_line,
ngx_http_upstream_process_accel_expires,
offsetof(ngx_http_upstream_headers_in_t, x_accel_expires),
ngx_http_upstream_copy_header_line, 0, 0 },
@ -1914,14 +1916,19 @@ ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
if (u->cacheable) {
time_t now, valid;
valid = ngx_http_file_cache_valid(u->conf->cache_valid,
u->headers_in.status_n);
now = ngx_time();
valid = r->cache->valid_sec;
if (valid == 0) {
valid = ngx_http_file_cache_valid(u->conf->cache_valid,
u->headers_in.status_n);
if (valid) {
r->cache->valid_sec = now + valid;
}
}
if (valid) {
now = ngx_time();
r->cache->valid_sec = now + valid;
r->cache->last_modified = r->headers_out.last_modified_time;
r->cache->date = now;
r->cache->body_start = (u_short) (u->buffer.pos - u->buffer.start);
@ -2831,6 +2838,54 @@ ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
}
static ngx_int_t
ngx_http_upstream_process_accel_expires(ngx_http_request_t *r,
ngx_table_elt_t *h, ngx_uint_t offset)
{
u_char *p;
size_t len;
ngx_int_t n;
r->upstream->headers_in.x_accel_expires = h;
if (r->cache == NULL) {
return NGX_OK;
}
len = h->value.len;
p = h->value.data;
if (p[0] != '@') {
n = ngx_atoi(p, len);
switch (n) {
case 0:
r->upstream->cacheable = 0;
break;
case NGX_ERROR:
break;
default:
r->cache->valid_sec = ngx_time() + n;
break;
}
} else {
p++;
len--;
n = ngx_atoi(p, len);
if (n != NGX_ERROR) {
r->cache->valid_sec = n;
}
}
return NGX_OK;
}
static ngx_int_t
ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h,
ngx_uint_t offset)