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Realip: the $realip_remote_addr variable.

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This commit is contained in:
Ruslan Ermilov 2015-11-16 16:02:02 +03:00
parent a52bbefd84
commit 1ce1610763
1 changed files with 71 additions and 1 deletions
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72
src/http/modules/ngx_http_realip_module.c
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@ -43,9 +43,14 @@ static char *ngx_http_realip(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
static void *ngx_http_realip_create_loc_conf(ngx_conf_t *cf); static void *ngx_http_realip_create_loc_conf(ngx_conf_t *cf);
static char *ngx_http_realip_merge_loc_conf(ngx_conf_t *cf, static char *ngx_http_realip_merge_loc_conf(ngx_conf_t *cf,
void *parent, void *child); void *parent, void *child);
static ngx_int_t ngx_http_realip_add_variables(ngx_conf_t *cf);
static ngx_int_t ngx_http_realip_init(ngx_conf_t *cf); static ngx_int_t ngx_http_realip_init(ngx_conf_t *cf);
static ngx_int_t ngx_http_realip_remote_addr_variable(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data);
static ngx_command_t ngx_http_realip_commands[] = { static ngx_command_t ngx_http_realip_commands[] = {
{ ngx_string("set_real_ip_from"), { ngx_string("set_real_ip_from"),
@ -75,7 +80,7 @@ static ngx_command_t ngx_http_realip_commands[] = {
static ngx_http_module_t ngx_http_realip_module_ctx = { static ngx_http_module_t ngx_http_realip_module_ctx = {
NULL, /* preconfiguration */ ngx_http_realip_add_variables, /* preconfiguration */
ngx_http_realip_init, /* postconfiguration */ ngx_http_realip_init, /* postconfiguration */
NULL, /* create main configuration */ NULL, /* create main configuration */
@ -105,6 +110,15 @@ ngx_module_t ngx_http_realip_module = {
}; };
static ngx_http_variable_t ngx_http_realip_vars[] = {
{ ngx_string("realip_remote_addr"), NULL,
ngx_http_realip_remote_addr_variable, 0, 0, 0 },
{ ngx_null_string, NULL, NULL, 0, 0, 0 }
};
static ngx_int_t static ngx_int_t
ngx_http_realip_handler(ngx_http_request_t *r) ngx_http_realip_handler(ngx_http_request_t *r)
{ {
@ -416,6 +430,25 @@ ngx_http_realip_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
} }
static ngx_int_t
ngx_http_realip_add_variables(ngx_conf_t *cf)
{
ngx_http_variable_t *var, *v;
for (v = ngx_http_realip_vars; v->name.len; v++) {
var = ngx_http_add_variable(cf, &v->name, v->flags);
if (var == NULL) {
return NGX_ERROR;
}
var->get_handler = v->get_handler;
var->data = v->data;
}
return NGX_OK;
}
static ngx_int_t static ngx_int_t
ngx_http_realip_init(ngx_conf_t *cf) ngx_http_realip_init(ngx_conf_t *cf)
{ {
@ -440,3 +473,40 @@ ngx_http_realip_init(ngx_conf_t *cf)
return NGX_OK; return NGX_OK;
} }
static ngx_int_t
ngx_http_realip_remote_addr_variable(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data)
{
ngx_str_t *addr_text;
ngx_pool_cleanup_t *cln;
ngx_http_realip_ctx_t *ctx;
ctx = ngx_http_get_module_ctx(r, ngx_http_realip_module);
if (ctx == NULL && (r->internal || r->filter_finalize)) {
/*
* if module context was reset, the original address
* can still be found in the cleanup handler
*/
for (cln = r->pool->cleanup; cln; cln = cln->next) {
if (cln->handler == ngx_http_realip_cleanup) {
ctx = cln->data;
break;
}
}
}
addr_text = ctx ? &ctx->addr_text : &r->connection->addr_text;
v->len = addr_text->len;
v->valid = 1;
v->no_cacheable = 0;
v->not_found = 0;
v->data = addr_text->data;
return NGX_OK;
}