Mercurial > hg > nginx-quic
view src/http/modules/perl/ngx_http_perl_module.h @ 4664:356c91151658 stable-1.2
Merge of r4618: rewrite escaping fix (ticket #162).
The following code resulted in incorrect escaping of uri and possible
segfault:
location / {
rewrite ^(.*) $1?c=$1;
return 200 "$uri";
}
If there were arguments in a rewrite's replacement string, and length was
actually calculated (due to duplicate captures as in the example above,
or variables present), the is_args flag was set and incorrectly copied
after length calculation. This resulted in escaping applied to the uri part
of the replacement, resulting in incorrect escaping. Additionally, buffer
was allocated without escaping expected, thus this also resulted in buffer
overrun and possible segfault.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Mon, 04 Jun 2012 11:07:19 +0000 |
| parents | d620f497c50f |
| children | deebe988cbd7 |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_HTTP_PERL_MODULE_H_INCLUDED_ #define _NGX_HTTP_PERL_MODULE_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> #include <nginx.h> #include <EXTERN.h> #include <perl.h> typedef ngx_http_request_t *nginx; typedef struct { ngx_str_t filename; ngx_str_t redirect_uri; ngx_str_t redirect_args; SV *next; ngx_uint_t done; /* unsigned done:1; */ ngx_array_t *variables; /* array of ngx_http_perl_var_t */ #if (NGX_HTTP_SSI) ngx_http_ssi_ctx_t *ssi; #endif } ngx_http_perl_ctx_t; typedef struct { ngx_uint_t hash; ngx_str_t name; ngx_str_t value; } ngx_http_perl_var_t; extern ngx_module_t ngx_http_perl_module; /* * workaround for "unused variable `Perl___notused'" warning * when building with perl 5.6.1 */ #ifndef PERL_IMPLICIT_CONTEXT #undef dTHXa #define dTHXa(a) #endif extern void boot_DynaLoader(pTHX_ CV* cv); void ngx_http_perl_handle_request(ngx_http_request_t *r); void ngx_http_perl_sleep_handler(ngx_http_request_t *r); #endif /* _NGX_HTTP_PERL_MODULE_H_INCLUDED_ */