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refactor gzip quantity introduced in r3981: it ignored "q=1.000"

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This commit is contained in:
Igor Sysoev 2011-08-04 14:50:59 +00:00
parent dfd81a23b2
commit 48d17bca94
1 changed files with 36 additions and 27 deletions
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61
src/http/ngx_http_core_module.c
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@ -71,6 +71,7 @@ static char *ngx_http_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
#if (NGX_HTTP_GZIP)
static ngx_int_t ngx_http_gzip_accept_encoding(ngx_str_t *ae);
static ngx_uint_t ngx_http_gzip_quantity(u_char *p, u_char *last);
static char *ngx_http_gzip_disable(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
#endif
@ -2189,7 +2190,7 @@ ok:
/*
* gzip is enabled for the following quantities:
* "gzip; q=0.001" ... "gzip; q=0.999", "gzip; q=1"
* "gzip; q=0.001" ... "gzip; q=1.000"
* gzip is disabled for the following quantities:
* "gzip; q=0" ... "gzip; q=0.000", and for any invalid cases
*/
@ -2197,8 +2198,7 @@ ok:
static ngx_int_t
ngx_http_gzip_accept_encoding(ngx_str_t *ae)
{
u_char c, *p, *start, *last;
ngx_uint_t n, q;
u_char *p, *start, *last;
start = ae->data;
last = start + ae->len;
@ -2255,56 +2255,65 @@ equal:
return NGX_DECLINED;
}
c = *p++;
if (ngx_http_gzip_quantity(p, last) == 0) {
return NGX_DECLINED;
}
if (c == '1') {
if (p == last || *p == ',' || *p == ' ') {
return NGX_OK;
}
return NGX_DECLINED;
ngx_uint_t
ngx_http_gzip_quantity(u_char *p, u_char *last)
{
u_char c;
ngx_uint_t n, q;
c = *p++;
if (c != '0' && c != '1') {
return 0;
}
if (c != '0') {
return NGX_DECLINED;
}
q = (c - '0') * 100;
if (p == last) {
return NGX_DECLINED;
return q;
}
if (*p++ != '.') {
return NGX_DECLINED;
c = *p++;
if (c == ',' || c == ' ') {
return q;
}
if (c != '.') {
return 0;
}
n = 0;
q = 0;
while (p < last) {
c = *p++;
if (c == ',') {
if (c == ',' || c == ' ') {
break;
}
if (c >= '1' && c <= '9') {
n++;
q++;
continue;
}
if (c == '0') {
if (c >= '0' && c <= '9') {
q += c - '0';
n++;
continue;
}
return NGX_DECLINED;
return 0;
}
if (n < 4 && q != 0) {
return NGX_OK;
if (q > 100 || n == 0 || n > 3) {
return 0;
}
return NGX_DECLINED;
return q;
}
#endif