mirror of
https://github.com/nginx/nginx.git
synced 2025-06-07 17:52:38 +08:00
ancient browsers support in ngx_http_browser_module
This commit is contained in:
Igor Sysoev
parent
94124f3983
commit
4c804591c1
@ -16,6 +16,10 @@
|
||||
*/
|
||||
|
||||
|
||||
#define NGX_HTTP_MODERN_BROWSER 0
|
||||
#define NGX_HTTP_ANCIENT_BROWSER 1
|
||||
|
||||
|
||||
typedef struct {
|
||||
u_char browser[12];
|
||||
size_t skip;
|
||||
@ -35,17 +39,29 @@ typedef struct {
|
||||
typedef struct {
|
||||
ngx_str_t name;
|
||||
ngx_http_get_variable_pt handler;
|
||||
} ngx_http_browser_t;
|
||||
uintptr_t data;
|
||||
} ngx_http_browser_variable_t;
|
||||
|
||||
|
||||
typedef struct {
|
||||
ngx_array_t *modern_browsers;
|
||||
ngx_http_variable_value_t *value;
|
||||
ngx_array_t *ancient_browsers;
|
||||
ngx_http_variable_value_t *modern_browser_value;
|
||||
ngx_http_variable_value_t *ancient_browser_value;
|
||||
|
||||
unsigned modern_unlisted_browsers:1;
|
||||
unsigned netscape4:1;
|
||||
} ngx_http_browser_conf_t;
|
||||
|
||||
|
||||
static ngx_int_t ngx_http_msie_variable(ngx_http_request_t *r,
|
||||
ngx_http_variable_value_t *v, uintptr_t data);
|
||||
static ngx_int_t ngx_http_browser_variable(ngx_http_request_t *r,
|
||||
ngx_http_variable_value_t *v, uintptr_t data);
|
||||
|
||||
static ngx_uint_t ngx_http_browser(ngx_http_request_t *r,
|
||||
ngx_http_browser_conf_t *cf);
|
||||
|
||||
static ngx_int_t ngx_http_browser_add_variable(ngx_conf_t *cf);
|
||||
static void *ngx_http_browser_create_conf(ngx_conf_t *cf);
|
||||
static char *ngx_http_browser_merge_conf(ngx_conf_t *cf, void *parent,
|
||||
@ -54,19 +70,30 @@ static int ngx_libc_cdecl ngx_http_modern_browser_sort(const void *one,
|
||||
const void *two);
|
||||
static char *ngx_http_modern_browser(ngx_conf_t *cf, ngx_command_t *cmd,
|
||||
void *conf);
|
||||
static char *ngx_http_ancient_browser(ngx_conf_t *cf, ngx_command_t *cmd,
|
||||
void *conf);
|
||||
static char *ngx_http_modern_browser_value(ngx_conf_t *cf, ngx_command_t *cmd,
|
||||
void *conf);
|
||||
static char *ngx_http_ancient_browser_value(ngx_conf_t *cf, ngx_command_t *cmd,
|
||||
void *conf);
|
||||
|
||||
|
||||
static ngx_command_t ngx_http_browser_commands[] = {
|
||||
|
||||
{ ngx_string("modern_browser"),
|
||||
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
|
||||
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
|
||||
ngx_http_modern_browser,
|
||||
NGX_HTTP_LOC_CONF_OFFSET,
|
||||
0,
|
||||
NULL },
|
||||
|
||||
{ ngx_string("ancient_browser"),
|
||||
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
|
||||
ngx_http_ancient_browser,
|
||||
NGX_HTTP_LOC_CONF_OFFSET,
|
||||
0,
|
||||
NULL },
|
||||
|
||||
{ ngx_string("modern_browser_value"),
|
||||
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
||||
ngx_http_modern_browser_value,
|
||||
@ -74,6 +101,13 @@ static ngx_command_t ngx_http_browser_commands[] = {
|
||||
0,
|
||||
NULL },
|
||||
|
||||
{ ngx_string("ancient_browser_value"),
|
||||
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
||||
ngx_http_ancient_browser_value,
|
||||
NGX_HTTP_LOC_CONF_OFFSET,
|
||||
0,
|
||||
NULL },
|
||||
|
||||
ngx_null_command
|
||||
};
|
||||
|
||||
@ -183,9 +217,13 @@ static ngx_http_modern_browser_mask_t ngx_http_modern_browser_masks[] = {
|
||||
};
|
||||
|
||||
|
||||
static ngx_http_browser_t ngx_http_browsers[] = {
|
||||
{ ngx_string("msie"), ngx_http_msie_variable },
|
||||
{ ngx_null_string, NULL }
|
||||
static ngx_http_browser_variable_t ngx_http_browsers[] = {
|
||||
{ ngx_string("msie"), ngx_http_msie_variable, 0 },
|
||||
{ ngx_string("modern_browser"), ngx_http_browser_variable,
|
||||
NGX_HTTP_MODERN_BROWSER },
|
||||
{ ngx_string("ancient_browser"), ngx_http_browser_variable,
|
||||
NGX_HTTP_ANCIENT_BROWSER },
|
||||
{ ngx_null_string, NULL, 0 }
|
||||
};
|
||||
|
||||
|
||||
@ -193,122 +231,160 @@ static ngx_int_t
|
||||
ngx_http_browser_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
||||
uintptr_t data)
|
||||
{
|
||||
u_char *name, *ua, *last, c;
|
||||
ngx_uint_t i, version, ver, scale;
|
||||
ngx_http_browser_conf_t *cf;
|
||||
ngx_http_modern_browser_t *browsers;
|
||||
ngx_uint_t rc;
|
||||
ngx_http_browser_conf_t *cf;
|
||||
|
||||
cf = ngx_http_get_module_loc_conf(r, ngx_http_browser_module);
|
||||
|
||||
if (cf->modern_browsers == NULL || cf->value == NULL) {
|
||||
*v = ngx_http_variable_null_value;
|
||||
rc = ngx_http_browser(r, cf);
|
||||
|
||||
if (data == NGX_HTTP_MODERN_BROWSER && rc == NGX_HTTP_MODERN_BROWSER) {
|
||||
*v = *cf->modern_browser_value;
|
||||
return NGX_OK;
|
||||
}
|
||||
|
||||
#if 0
|
||||
if (!r->headers_in.msie && !r->headers_in.opera
|
||||
&& !r->headers_in.gecko && !r->headers_in.konqueror)
|
||||
{
|
||||
*v = ngx_http_variable_null_value;
|
||||
if (data == NGX_HTTP_ANCIENT_BROWSER && rc == NGX_HTTP_ANCIENT_BROWSER) {
|
||||
*v = *cf->ancient_browser_value;
|
||||
return NGX_OK;
|
||||
}
|
||||
#endif
|
||||
|
||||
if (r->headers_in.user_agent == NULL) {
|
||||
*v = ngx_http_variable_null_value;
|
||||
return NGX_OK;
|
||||
}
|
||||
|
||||
|
||||
ua = r->headers_in.user_agent->value.data;
|
||||
last = ua + r->headers_in.user_agent->value.len;
|
||||
|
||||
browsers = cf->modern_browsers->elts;
|
||||
|
||||
for (i = 0; i < cf->modern_browsers->nelts; i++) {
|
||||
name = ua + browsers[i].skip;
|
||||
|
||||
if (name >= last) {
|
||||
continue;
|
||||
}
|
||||
|
||||
name = (u_char *) ngx_strstr(name, browsers[i].name);
|
||||
|
||||
if (name == NULL) {
|
||||
continue;
|
||||
}
|
||||
|
||||
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
||||
"browser: \"%s\"", name);
|
||||
|
||||
name += browsers[i].add;
|
||||
|
||||
if (name >= last) {
|
||||
continue;
|
||||
}
|
||||
|
||||
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
||||
"version: \"%ui\" \"%s\"", browsers[i].version, name);
|
||||
|
||||
version = 0;
|
||||
ver = 0;
|
||||
scale = 1000000;
|
||||
|
||||
while (name < last) {
|
||||
|
||||
c = *name++;
|
||||
|
||||
if (c >= '0' && c <= '9') {
|
||||
ver = ver * 10 + (c - '0');
|
||||
continue;
|
||||
}
|
||||
|
||||
if (c == '.') {
|
||||
version += ver * scale;
|
||||
|
||||
if (version > browsers[i].version) {
|
||||
*v = *cf->value;
|
||||
return NGX_OK;
|
||||
}
|
||||
|
||||
ver = 0;
|
||||
scale /= 100;
|
||||
continue;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
version += ver * scale;
|
||||
|
||||
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
||||
"version: \"%ui\" \"%ui\"",
|
||||
browsers[i].version, version);
|
||||
|
||||
if (version >= browsers[i].version) {
|
||||
*v = *cf->value;
|
||||
return NGX_OK;
|
||||
}
|
||||
}
|
||||
|
||||
*v = ngx_http_variable_null_value;
|
||||
|
||||
return NGX_OK;
|
||||
}
|
||||
|
||||
|
||||
static ngx_uint_t
|
||||
ngx_http_browser(ngx_http_request_t *r, ngx_http_browser_conf_t *cf)
|
||||
{
|
||||
size_t len;
|
||||
u_char *name, *ua, *last, c;
|
||||
ngx_str_t *ancient;
|
||||
ngx_uint_t i, version, ver, scale;
|
||||
ngx_http_modern_browser_t *modern;
|
||||
|
||||
if (r->headers_in.user_agent == NULL) {
|
||||
if (cf->modern_unlisted_browsers) {
|
||||
return NGX_HTTP_MODERN_BROWSER;
|
||||
}
|
||||
|
||||
return NGX_HTTP_ANCIENT_BROWSER;
|
||||
}
|
||||
|
||||
ua = r->headers_in.user_agent->value.data;
|
||||
len = r->headers_in.user_agent->value.len;
|
||||
last = ua + len;
|
||||
|
||||
if (cf->modern_browsers) {
|
||||
modern = cf->modern_browsers->elts;
|
||||
|
||||
for (i = 0; i < cf->modern_browsers->nelts; i++) {
|
||||
name = ua + modern[i].skip;
|
||||
|
||||
if (name >= last) {
|
||||
continue;
|
||||
}
|
||||
|
||||
name = (u_char *) ngx_strstr(name, modern[i].name);
|
||||
|
||||
if (name == NULL) {
|
||||
continue;
|
||||
}
|
||||
|
||||
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
||||
"browser: \"%s\"", name);
|
||||
|
||||
name += modern[i].add;
|
||||
|
||||
if (name >= last) {
|
||||
continue;
|
||||
}
|
||||
|
||||
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
||||
"version: \"%ui\" \"%s\"", modern[i].version, name);
|
||||
|
||||
version = 0;
|
||||
ver = 0;
|
||||
scale = 1000000;
|
||||
|
||||
while (name < last) {
|
||||
|
||||
c = *name++;
|
||||
|
||||
if (c >= '0' && c <= '9') {
|
||||
ver = ver * 10 + (c - '0');
|
||||
continue;
|
||||
}
|
||||
|
||||
if (c == '.') {
|
||||
version += ver * scale;
|
||||
|
||||
if (version > modern[i].version) {
|
||||
return NGX_HTTP_MODERN_BROWSER;
|
||||
}
|
||||
|
||||
ver = 0;
|
||||
scale /= 100;
|
||||
continue;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
version += ver * scale;
|
||||
|
||||
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
||||
"version: \"%ui\" \"%ui\"",
|
||||
modern[i].version, version);
|
||||
|
||||
if (version >= modern[i].version) {
|
||||
return NGX_HTTP_MODERN_BROWSER;
|
||||
}
|
||||
}
|
||||
|
||||
if (!cf->modern_unlisted_browsers) {
|
||||
return NGX_HTTP_ANCIENT_BROWSER;
|
||||
}
|
||||
}
|
||||
|
||||
if (cf->netscape4) {
|
||||
if (len > sizeof("Mozilla/4.72 ") - 1
|
||||
&& ngx_strncmp(ua, "Mozilla/", sizeof("Mozilla/") - 1) == 0
|
||||
&& ua[8] > '0' && ua[8] < '5')
|
||||
{
|
||||
return NGX_HTTP_ANCIENT_BROWSER;
|
||||
}
|
||||
}
|
||||
|
||||
if (cf->ancient_browsers) {
|
||||
ancient = cf->ancient_browsers->elts;
|
||||
|
||||
for (i = 0; i < cf->ancient_browsers->nelts; i++) {
|
||||
if (len >= ancient[i].len
|
||||
&& ngx_strstr(ua, ancient[i].data) != NULL)
|
||||
{
|
||||
return NGX_HTTP_ANCIENT_BROWSER;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (cf->modern_unlisted_browsers) {
|
||||
return NGX_HTTP_MODERN_BROWSER;
|
||||
}
|
||||
|
||||
return NGX_HTTP_ANCIENT_BROWSER;
|
||||
}
|
||||
|
||||
|
||||
static ngx_int_t
|
||||
ngx_http_msie_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
||||
uintptr_t data)
|
||||
{
|
||||
if (r->headers_in.msie) {
|
||||
*v = ngx_http_variable_true_value;
|
||||
|
||||
return NGX_OK;
|
||||
}
|
||||
|
||||
*v = ngx_http_variable_null_value;
|
||||
|
||||
return NGX_OK;
|
||||
}
|
||||
|
||||
@ -316,17 +392,18 @@ ngx_http_msie_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
||||
static ngx_int_t
|
||||
ngx_http_browser_add_variable(ngx_conf_t *cf)
|
||||
{
|
||||
ngx_http_browser_t *browser;
|
||||
ngx_http_variable_t *var;
|
||||
ngx_http_browser_variable_t *var;
|
||||
ngx_http_variable_t *v;
|
||||
|
||||
for (browser = ngx_http_browsers; browser->name.len; browser++) {
|
||||
for (var = ngx_http_browsers; var->name.len; var++) {
|
||||
|
||||
var = ngx_http_add_variable(cf, &browser->name, NGX_HTTP_VAR_CHANGABLE);
|
||||
if (var == NULL) {
|
||||
v = ngx_http_add_variable(cf, &var->name, NGX_HTTP_VAR_CHANGABLE);
|
||||
if (v == NULL) {
|
||||
return NGX_ERROR;
|
||||
}
|
||||
|
||||
var->get_handler = browser->handler;
|
||||
v->get_handler = var->handler;
|
||||
v->data = var->data;
|
||||
}
|
||||
|
||||
return NGX_OK;
|
||||
@ -346,8 +423,13 @@ ngx_http_browser_create_conf(ngx_conf_t *cf)
|
||||
/*
|
||||
* set by ngx_pcalloc():
|
||||
*
|
||||
* conf->browsers = NULL;
|
||||
* conf->value = NULL;
|
||||
* conf->modern_browsers = NULL;
|
||||
* conf->ancient_browsers = NULL;
|
||||
* conf->modern_browser_value = NULL;
|
||||
* conf->ancient_browser_value = NULL;
|
||||
*
|
||||
* conf->modern_unlisted_browsers = 0;
|
||||
* conf->netscape4 = 0;
|
||||
*/
|
||||
|
||||
return conf;
|
||||
@ -412,8 +494,24 @@ found:
|
||||
}
|
||||
}
|
||||
|
||||
if (conf->value == NULL) {
|
||||
conf->value = prev->value;
|
||||
if (conf->ancient_browsers == NULL) {
|
||||
conf->ancient_browsers = prev->ancient_browsers;
|
||||
}
|
||||
|
||||
if (conf->modern_browser_value == NULL) {
|
||||
conf->modern_browser_value = prev->modern_browser_value;
|
||||
}
|
||||
|
||||
if (conf->modern_browser_value == NULL) {
|
||||
conf->modern_browser_value = &ngx_http_variable_true_value;
|
||||
}
|
||||
|
||||
if (conf->ancient_browser_value == NULL) {
|
||||
conf->ancient_browser_value = prev->ancient_browser_value;
|
||||
}
|
||||
|
||||
if (conf->ancient_browser_value == NULL) {
|
||||
conf->ancient_browser_value = &ngx_http_variable_true_value;
|
||||
}
|
||||
|
||||
return NGX_CONF_OK;
|
||||
@ -441,8 +539,19 @@ ngx_http_modern_browser(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
||||
ngx_http_modern_browser_t *browser;
|
||||
ngx_http_modern_browser_mask_t *mask;
|
||||
|
||||
value = cf->args->elts;
|
||||
|
||||
if (cf->args->nelts == 2) {
|
||||
if (ngx_strcmp(value[1].data, "unlisted") == 0) {
|
||||
bcf->modern_unlisted_browsers = 1;
|
||||
return NGX_CONF_OK;
|
||||
}
|
||||
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
|
||||
if (bcf->modern_browsers == NULL) {
|
||||
bcf->modern_browsers = ngx_array_create(cf->pool, 4,
|
||||
bcf->modern_browsers = ngx_array_create(cf->pool, 5,
|
||||
sizeof(ngx_http_modern_browser_t));
|
||||
if (bcf->modern_browsers == NULL) {
|
||||
return NGX_CONF_ERROR;
|
||||
@ -454,8 +563,6 @@ ngx_http_modern_browser(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
|
||||
value = cf->args->elts;
|
||||
|
||||
mask = ngx_http_modern_browser_masks;
|
||||
|
||||
for (n = 0; mask[n].browser[0] != '\0'; n++) {
|
||||
@ -513,36 +620,87 @@ found:
|
||||
}
|
||||
|
||||
|
||||
static char *
|
||||
ngx_http_ancient_browser(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
||||
{
|
||||
ngx_http_browser_conf_t *bcf = conf;
|
||||
|
||||
ngx_str_t *value, *browser;
|
||||
ngx_uint_t i;
|
||||
|
||||
value = cf->args->elts;
|
||||
|
||||
for (i = 1; i < cf->args->nelts; i++) {
|
||||
if (ngx_strcmp(value[i].data, "netscape4") == 0) {
|
||||
bcf->netscape4 = 1;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (bcf->ancient_browsers == NULL) {
|
||||
bcf->ancient_browsers = ngx_array_create(cf->pool, 4,
|
||||
sizeof(ngx_str_t));
|
||||
if (bcf->ancient_browsers == NULL) {
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
browser = ngx_array_push(bcf->ancient_browsers);
|
||||
if (browser == NULL) {
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
|
||||
*browser = value[i];
|
||||
}
|
||||
|
||||
return NGX_CONF_OK;
|
||||
}
|
||||
|
||||
|
||||
static char *
|
||||
ngx_http_modern_browser_value(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
||||
{
|
||||
ngx_http_browser_conf_t *bcf = conf;
|
||||
|
||||
ngx_str_t *value, name;
|
||||
ngx_http_variable_t *var;
|
||||
ngx_str_t *value;
|
||||
|
||||
bcf->modern_browser_value = ngx_palloc(cf->pool,
|
||||
sizeof(ngx_http_variable_value_t));
|
||||
if (bcf->modern_browser_value == NULL) {
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
|
||||
value = cf->args->elts;
|
||||
|
||||
name.len = sizeof("browser") - 1;
|
||||
name.data = (u_char *) "browser";
|
||||
|
||||
var = ngx_http_add_variable(cf, &name, NGX_HTTP_VAR_CHANGABLE);
|
||||
if (var == NULL) {
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
|
||||
var->get_handler = ngx_http_browser_variable;
|
||||
|
||||
bcf->value = ngx_palloc(cf->pool, sizeof(ngx_http_variable_value_t));
|
||||
if (bcf->value == NULL) {
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
|
||||
bcf->value->len = value[1].len;
|
||||
bcf->value->valid = 1;
|
||||
bcf->value->no_cachable = 0;
|
||||
bcf->value->not_found = 0;
|
||||
bcf->value->data = value[1].data;
|
||||
bcf->modern_browser_value->len = value[1].len;
|
||||
bcf->modern_browser_value->valid = 1;
|
||||
bcf->modern_browser_value->no_cachable = 0;
|
||||
bcf->modern_browser_value->not_found = 0;
|
||||
bcf->modern_browser_value->data = value[1].data;
|
||||
|
||||
return NGX_CONF_OK;
|
||||
}
|
||||
|
||||
|
||||
static char *
|
||||
ngx_http_ancient_browser_value(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
||||
{
|
||||
ngx_http_browser_conf_t *bcf = conf;
|
||||
|
||||
ngx_str_t *value;
|
||||
|
||||
bcf->ancient_browser_value = ngx_palloc(cf->pool,
|
||||
sizeof(ngx_http_variable_value_t));
|
||||
if (bcf->ancient_browser_value == NULL) {
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
|
||||
value = cf->args->elts;
|
||||
|
||||
bcf->ancient_browser_value->len = value[1].len;
|
||||
bcf->ancient_browser_value->valid = 1;
|
||||
bcf->ancient_browser_value->no_cachable = 0;
|
||||
bcf->ancient_browser_value->not_found = 0;
|
||||
bcf->ancient_browser_value->data = value[1].data;
|
||||
|
||||
return NGX_CONF_OK;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user