openresty/patches/nginx-1.19.2-log_escape_non...

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2020-09-28 19:42:57 +00:00
diff --git a/src/http/modules/ngx_http_log_module.c b/src/http/modules/ngx_http_log_module.c
index 917ed55f..b769dfd3 100644
--- a/src/http/modules/ngx_http_log_module.c
+++ b/src/http/modules/ngx_http_log_module.c
@@ -79,6 +79,8 @@ typedef struct {
time_t open_file_cache_valid;
ngx_uint_t open_file_cache_min_uses;
+ ngx_flag_t escape_non_ascii;
+
ngx_uint_t off; /* unsigned off:1 */
} ngx_http_log_loc_conf_t;
@@ -131,7 +133,8 @@ static size_t ngx_http_log_variable_getlen(ngx_http_request_t *r,
uintptr_t data);
static u_char *ngx_http_log_variable(ngx_http_request_t *r, u_char *buf,
ngx_http_log_op_t *op);
-static uintptr_t ngx_http_log_escape(u_char *dst, u_char *src, size_t size);
+static uintptr_t ngx_http_log_escape(ngx_http_log_loc_conf_t *lcf, u_char *dst,
+ u_char *src, size_t size);
static size_t ngx_http_log_json_variable_getlen(ngx_http_request_t *r,
uintptr_t data);
static u_char *ngx_http_log_json_variable(ngx_http_request_t *r, u_char *buf,
@@ -177,6 +180,13 @@ static ngx_command_t ngx_http_log_commands[] = {
0,
NULL },
+ { ngx_string("log_escape_non_ascii"),
+ NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
+ ngx_conf_set_flag_slot,
+ NGX_HTTP_LOC_CONF_OFFSET,
+ offsetof(ngx_http_log_loc_conf_t, escape_non_ascii),
+ NULL },
+
ngx_null_command
};
@@ -935,6 +945,7 @@ static size_t
ngx_http_log_variable_getlen(ngx_http_request_t *r, uintptr_t data)
{
uintptr_t len;
+ ngx_http_log_loc_conf_t *lcf;
ngx_http_variable_value_t *value;
value = ngx_http_get_indexed_variable(r, data);
@@ -943,7 +954,9 @@ ngx_http_log_variable_getlen(ngx_http_request_t *r, uintptr_t data)
return 1;
}
- len = ngx_http_log_escape(NULL, value->data, value->len);
+ lcf = ngx_http_get_module_loc_conf(r, ngx_http_log_module);
+
+ len = ngx_http_log_escape(lcf, NULL, value->data, value->len);
value->escape = len ? 1 : 0;
@@ -954,6 +967,7 @@ ngx_http_log_variable_getlen(ngx_http_request_t *r, uintptr_t data)
static u_char *
ngx_http_log_variable(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
{
+ ngx_http_log_loc_conf_t *lcf;
ngx_http_variable_value_t *value;
value = ngx_http_get_indexed_variable(r, op->data);
@@ -967,16 +981,18 @@ ngx_http_log_variable(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
return ngx_cpymem(buf, value->data, value->len);
} else {
- return (u_char *) ngx_http_log_escape(buf, value->data, value->len);
+ lcf = ngx_http_get_module_loc_conf(r, ngx_http_log_module);
+ return (u_char *) ngx_http_log_escape(lcf, buf, value->data, value->len);
}
}
static uintptr_t
-ngx_http_log_escape(u_char *dst, u_char *src, size_t size)
+ngx_http_log_escape(ngx_http_log_loc_conf_t *lcf, u_char *dst, u_char *src,
+ size_t size)
{
- ngx_uint_t n;
- static u_char hex[] = "0123456789ABCDEF";
+ ngx_uint_t n;
+ static u_char hex[] = "0123456789ABCDEF";
static uint32_t escape[] = {
0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
@@ -996,6 +1012,12 @@ ngx_http_log_escape(u_char *dst, u_char *src, size_t size)
0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
};
+ if (lcf->escape_non_ascii) {
+ ngx_memset(&escape[4], 0xff, sizeof(uint32_t) * 4);
+
+ } else {
+ ngx_memzero(&escape[4], sizeof(uint32_t) * 4);
+ }
if (dst == NULL) {
@@ -1120,6 +1142,7 @@ ngx_http_log_create_loc_conf(ngx_conf_t *cf)
}
conf->open_file_cache = NGX_CONF_UNSET_PTR;
+ conf->escape_non_ascii = NGX_CONF_UNSET;
return conf;
}
@@ -1135,6 +1158,8 @@ ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
ngx_http_log_fmt_t *fmt;
ngx_http_log_main_conf_t *lmcf;
+ ngx_conf_merge_value(conf->escape_non_ascii, prev->escape_non_ascii, 1);
+
if (conf->open_file_cache == NGX_CONF_UNSET_PTR) {
conf->open_file_cache = prev->open_file_cache;