Mercurial > hg > nginx
changeset 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 | dfd8dfb436e5 |
children | b4073527be81 |
files | src/http/modules/ngx_http_proxy_module.c src/http/ngx_http_parse.c src/http/ngx_http_request.c src/http/ngx_http_request.h |
diffstat | 4 files changed, 11 insertions(+), 70 deletions(-) [+] |
line wrap: on
line diff
--- a/src/http/modules/ngx_http_proxy_module.c Mon Jun 28 18:01:11 2021 +0300 +++ b/src/http/modules/ngx_http_proxy_module.c Mon Jun 28 18:01:13 2021 +0300 @@ -1186,7 +1186,7 @@ loc_len = (r->valid_location && ctx->vars.uri.len) ? plcf->location.len : 0; - if (r->quoted_uri || r->space_in_uri || r->internal) { + if (r->quoted_uri || r->internal) { escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len, r->uri.len - loc_len, NGX_ESCAPE_URI); } else { @@ -1299,7 +1299,7 @@ loc_len = (r->valid_location && ctx->vars.uri.len) ? plcf->location.len : 0; - if (r->quoted_uri || r->space_in_uri || r->internal) { + if (r->quoted_uri || r->internal) { escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len, r->uri.len - loc_len, NGX_ESCAPE_URI); }
--- a/src/http/ngx_http_parse.c Mon Jun 28 18:01:11 2021 +0300 +++ b/src/http/ngx_http_parse.c Mon Jun 28 18:01:13 2021 +0300 @@ -116,10 +116,8 @@ 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 @@ */ 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 @@ */ 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 @@ 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 @@ 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 @@ } 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 @@ 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 @@ 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 @@ 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 @@ switch (ch) { case ' ': - r->space_in_uri = 1; - break; + return NGX_ERROR; case '#': r->complex_uri = 1; break;
--- a/src/http/ngx_http_request.c Mon Jun 28 18:01:11 2021 +0300 +++ b/src/http/ngx_http_request.c Mon Jun 28 18:01:13 2021 +0300 @@ -1264,7 +1264,7 @@ r->unparsed_uri.len = r->uri_end - r->uri_start; r->unparsed_uri.data = r->uri_start; - r->valid_unparsed_uri = (r->space_in_uri || r->empty_path_in_uri) ? 0 : 1; + r->valid_unparsed_uri = r->empty_path_in_uri ? 0 : 1; if (r->uri_ext) { if (r->args_start) {