Mercurial > hg > nginx
diff src/http/ngx_http_parse.c @ 7881:52338ddf9e2f
Disabled spaces in URIs (ticket #196).
From now on, requests with spaces in URIs are immediately rejected rather
than allowed. Spaces were allowed in 31e9677b15a1 (0.8.41) to handle bad
clients. It is believed that now this behaviour causes more harm than
good.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Mon, 28 Jun 2021 18:01:13 +0300 |
| parents | 63c66b7cc07c |
| children | b4073527be81 |
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--- a/src/http/ngx_http_parse.c +++ b/src/http/ngx_http_parse.c @@ -116,10 +116,8 @@ ngx_http_parse_request_line(ngx_http_req sw_host_end, sw_host_ip_literal, sw_port, - sw_host_http_09, sw_after_slash_in_uri, sw_check_uri, - sw_check_uri_http_09, sw_uri, sw_http_09, sw_http_H, @@ -398,7 +396,7 @@ ngx_http_parse_request_line(ngx_http_req */ r->uri_start = r->schema_end + 1; r->uri_end = r->schema_end + 2; - state = sw_host_http_09; + state = sw_http_09; break; default: return NGX_HTTP_PARSE_INVALID_REQUEST; @@ -472,35 +470,13 @@ ngx_http_parse_request_line(ngx_http_req */ r->uri_start = r->schema_end + 1; r->uri_end = r->schema_end + 2; - state = sw_host_http_09; + state = sw_http_09; break; default: return NGX_HTTP_PARSE_INVALID_REQUEST; } break; - /* space+ after "http://host[:port] " */ - case sw_host_http_09: - switch (ch) { - case ' ': - break; - case CR: - r->http_minor = 9; - state = sw_almost_done; - break; - case LF: - r->http_minor = 9; - goto done; - case 'H': - r->http_protocol.data = p; - state = sw_http_H; - break; - default: - return NGX_HTTP_PARSE_INVALID_REQUEST; - } - break; - - /* check "/.", "//", "%", and "\" (Win32) in URI */ case sw_after_slash_in_uri: @@ -512,7 +488,7 @@ ngx_http_parse_request_line(ngx_http_req switch (ch) { case ' ': r->uri_end = p; - state = sw_check_uri_http_09; + state = sw_http_09; break; case CR: r->uri_end = p; @@ -584,7 +560,7 @@ ngx_http_parse_request_line(ngx_http_req break; case ' ': r->uri_end = p; - state = sw_check_uri_http_09; + state = sw_http_09; break; case CR: r->uri_end = p; @@ -621,31 +597,6 @@ ngx_http_parse_request_line(ngx_http_req } break; - /* space+ after URI */ - case sw_check_uri_http_09: - switch (ch) { - case ' ': - break; - case CR: - r->http_minor = 9; - state = sw_almost_done; - break; - case LF: - r->http_minor = 9; - goto done; - case 'H': - r->http_protocol.data = p; - state = sw_http_H; - break; - default: - r->space_in_uri = 1; - state = sw_check_uri; - p--; - break; - } - break; - - /* URI */ case sw_uri: @@ -692,10 +643,7 @@ ngx_http_parse_request_line(ngx_http_req state = sw_http_H; break; default: - r->space_in_uri = 1; - state = sw_uri; - p--; - break; + return NGX_HTTP_PARSE_INVALID_REQUEST; } break; @@ -1171,9 +1119,7 @@ ngx_http_parse_uri(ngx_http_request_t *r switch (ch) { case ' ': - r->space_in_uri = 1; - state = sw_check_uri; - break; + return NGX_ERROR; case '.': r->complex_uri = 1; state = sw_uri; @@ -1232,8 +1178,7 @@ ngx_http_parse_uri(ngx_http_request_t *r r->uri_ext = p + 1; break; case ' ': - r->space_in_uri = 1; - break; + return NGX_ERROR; #if (NGX_WIN32) case '\\': r->complex_uri = 1; @@ -1267,8 +1212,7 @@ ngx_http_parse_uri(ngx_http_request_t *r switch (ch) { case ' ': - r->space_in_uri = 1; - break; + return NGX_ERROR; case '#': r->complex_uri = 1; break;