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HTTP/3: Huffman encoding for the Location response field.

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This commit is contained in:
Sergey Kandaurov 2021-09-13 16:25:32 +03:00
parent 12cf623bc2
commit bacd7ef0be
1 changed files with 59 additions and 63 deletions
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122
src/http/v3/ngx_http_v3_filter_module.c
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@ -95,7 +95,7 @@ ngx_http_v3_header_filter(ngx_http_request_t *r)
u_char *p; u_char *p;
size_t len, n; size_t len, n;
ngx_buf_t *b; ngx_buf_t *b;
ngx_str_t host; ngx_str_t host, location;
ngx_uint_t i, port; ngx_uint_t i, port;
ngx_chain_t *out, *hl, *cl, **ll; ngx_chain_t *out, *hl, *cl, **ll;
ngx_list_part_t *part; ngx_list_part_t *part;
@ -229,51 +229,70 @@ ngx_http_v3_header_filter(ngx_http_request_t *r)
sizeof("Mon, 28 Sep 1970 06:00:00 GMT") - 1); sizeof("Mon, 28 Sep 1970 06:00:00 GMT") - 1);
} }
if (r->headers_out.location if (r->headers_out.location && r->headers_out.location->value.len) {
&& r->headers_out.location->value.len
&& r->headers_out.location->value.data[0] == '/'
&& clcf->absolute_redirect)
{
r->headers_out.location->hash = 0;
if (clcf->server_name_in_redirect) { if (r->headers_out.location->value.data[0] == '/'
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); && clcf->absolute_redirect)
host = cscf->server_name; {
if (clcf->server_name_in_redirect) {
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
host = cscf->server_name;
} else if (r->headers_in.server.len) { } else if (r->headers_in.server.len) {
host = r->headers_in.server; host = r->headers_in.server;
} else { } else {
host.len = NGX_SOCKADDR_STRLEN; host.len = NGX_SOCKADDR_STRLEN;
host.data = addr; host.data = addr;
if (ngx_connection_local_sockaddr(c, &host, 0) != NGX_OK) { if (ngx_connection_local_sockaddr(c, &host, 0) != NGX_OK) {
return NGX_ERROR;
}
}
port = ngx_inet_get_port(c->local_sockaddr);
location.len = sizeof("https://") - 1 + host.len
+ r->headers_out.location->value.len;
if (clcf->port_in_redirect) {
port = (port == 443) ? 0 : port;
} else {
port = 0;
}
if (port) {
location.len += sizeof(":65535") - 1;
}
location.data = ngx_pnalloc(r->pool, location.len);
if (location.data == NULL) {
return NGX_ERROR; return NGX_ERROR;
} }
p = ngx_cpymem(location.data, "https://", sizeof("https://") - 1);
p = ngx_cpymem(p, host.data, host.len);
if (port) {
p = ngx_sprintf(p, ":%ui", port);
}
p = ngx_cpymem(p, r->headers_out.location->value.data,
r->headers_out.location->value.len);
/* update r->headers_out.location->value for possible logging */
r->headers_out.location->value.len = p - location.data;
r->headers_out.location->value.data = location.data;
ngx_str_set(&r->headers_out.location->key, "Location");
} }
port = ngx_inet_get_port(c->local_sockaddr); r->headers_out.location->hash = 0;
n = sizeof("https://") - 1 + host.len
+ r->headers_out.location->value.len;
if (clcf->port_in_redirect) {
port = (port == 443) ? 0 : port;
} else {
port = 0;
}
if (port) {
n += sizeof(":65535") - 1;
}
len += ngx_http_v3_encode_field_lri(NULL, 0, len += ngx_http_v3_encode_field_lri(NULL, 0,
NGX_HTTP_V3_HEADER_LOCATION, NULL, n); NGX_HTTP_V3_HEADER_LOCATION, NULL,
r->headers_out.location->value.len);
} else {
ngx_str_null(&host);
port = 0;
} }
#if (NGX_HTTP_GZIP) #if (NGX_HTTP_GZIP)
@ -425,34 +444,11 @@ ngx_http_v3_header_filter(ngx_http_request_t *r)
p, n); p, n);
} }
if (host.data) { if (r->headers_out.location && r->headers_out.location->value.len) {
n = sizeof("https://") - 1 + host.len
+ r->headers_out.location->value.len;
if (port) {
n += ngx_sprintf(b->last, ":%ui", port) - b->last;
}
b->last = (u_char *) ngx_http_v3_encode_field_lri(b->last, 0, b->last = (u_char *) ngx_http_v3_encode_field_lri(b->last, 0,
NGX_HTTP_V3_HEADER_LOCATION, NGX_HTTP_V3_HEADER_LOCATION,
NULL, n); r->headers_out.location->value.data,
r->headers_out.location->value.len);
p = b->last;
b->last = ngx_cpymem(b->last, "https://", sizeof("https://") - 1);
b->last = ngx_cpymem(b->last, host.data, host.len);
if (port) {
b->last = ngx_sprintf(b->last, ":%ui", port);
}
b->last = ngx_cpymem(b->last, r->headers_out.location->value.data,
r->headers_out.location->value.len);
/* update r->headers_out.location->value for possible logging */
r->headers_out.location->value.len = b->last - p;
r->headers_out.location->value.data = p;
ngx_str_set(&r->headers_out.location->key, "Location");
} }
#if (NGX_HTTP_GZIP) #if (NGX_HTTP_GZIP)