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|
/*
+----------------------------------------------------------------------+
| PHP version 4.0 |
+----------------------------------------------------------------------+
| Copyright (c) 1997, 1998, 1999, 2000 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.02 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.php.net/license/2_02.txt. |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include "php.h"
#include "php_regex.h"
#include "php_browscap.h"
#include "php_ini.h"
#include "zend_globals.h"
static HashTable browser_hash;
static zval *current_section;
#define DEFAULT_SECTION_NAME "Default Browser Capability Settings"
static void browscap_entry_dtor(zval *pvalue)
{
if (pvalue->type == IS_OBJECT || pvalue->type == IS_ARRAY) {
zend_hash_destroy(pvalue->value.obj.properties);
free(pvalue->value.obj.properties);
}
}
static void convert_browscap_pattern(zval *pattern)
{
register int i,j;
char *t;
for (i=0; i<pattern->value.str.len; i++) {
if (pattern->value.str.val[i]=='*' || pattern->value.str.val[i]=='?' || pattern->value.str.val[i]=='.') {
break;
}
}
if (i==pattern->value.str.len) { /* no wildcards */
pattern->value.str.val = zend_strndup(pattern->value.str.val, pattern->value.str.len);
return;
}
t = (char *) malloc(pattern->value.str.len*2);
for (i=0,j=0; i<pattern->value.str.len; i++,j++) {
switch (pattern->value.str.val[i]) {
case '?':
t[j] = '.';
break;
case '*':
t[j++] = '.';
t[j] = '*';
break;
case '.':
t[j++] = '\\';
t[j] = '.';
break;
default:
t[j] = pattern->value.str.val[i];
break;
}
}
t[j]=0;
pattern->value.str.val = t;
pattern->value.str.len = j;
}
static void php_browscap_parser_cb(zval *arg1, zval *arg2, int callback_type, void *arg)
{
switch (callback_type) {
case ZEND_INI_PARSER_ENTRY:
if (current_section) {
zval *new_property;
char *new_key;
new_property = (zval *) malloc(sizeof(zval));
INIT_PZVAL(new_property);
new_property->value.str.val = Z_STRVAL_P(arg2);
new_property->value.str.len = Z_STRLEN_P(arg2);
new_property->type = IS_STRING;
new_key = zend_strndup(Z_STRVAL_P(arg1), Z_STRLEN_P(arg1));
zend_str_tolower(new_key, Z_STRLEN_P(arg1));
zend_hash_update(current_section->value.obj.properties, new_key, Z_STRLEN_P(arg1)+1, &new_property, sizeof(zval *), NULL);
free(new_key);
}
break;
case ZEND_INI_PARSER_SECTION: {
zval *processed;
/*printf("'%s' (%d)\n",$1.value.str.val,$1.value.str.len+1);*/
current_section = (zval *) malloc(sizeof(zval));
INIT_PZVAL(current_section);
processed = (zval *) malloc(sizeof(zval));
INIT_PZVAL(processed);
current_section->value.obj.ce = &zend_standard_class_def;
current_section->value.obj.properties = (HashTable *) malloc(sizeof(HashTable));
current_section->type = IS_OBJECT;
zend_hash_init(current_section->value.obj.properties, 0, NULL, (dtor_func_t) browscap_entry_dtor, 1);
zend_hash_update(&browser_hash, Z_STRVAL_P(arg1), Z_STRLEN_P(arg1)+1, (void *) ¤t_section, sizeof(zval *), NULL);
processed->value.str.val = Z_STRVAL_P(arg1);
processed->value.str.len = Z_STRLEN_P(arg1);
processed->type = IS_STRING;
convert_browscap_pattern(processed);
zend_hash_update(current_section->value.obj.properties, "browser_name_pattern", sizeof("browser_name_pattern"), (void *) &processed, sizeof(zval *), NULL);
}
break;
}
}
PHP_MINIT_FUNCTION(browscap)
{
char *browscap = INI_STR("browscap");
if (browscap) {
zend_file_handle fh;
if (zend_hash_init(&browser_hash, 0, NULL, (dtor_func_t) browscap_entry_dtor, 1)==FAILURE) {
return FAILURE;
}
fh.handle.fp = V_FOPEN(browscap, "r");
if (!fh.handle.fp) {
php_error(E_WARNING,"Cannot open '%s' for reading", browscap);
return FAILURE;
}
zend_parse_ini_file(&fh, (zend_ini_parser_cb_t) php_browscap_parser_cb, &browser_hash);
}
return SUCCESS;
}
PHP_MSHUTDOWN_FUNCTION(browscap)
{
if (INI_STR("browscap")) {
zend_hash_destroy(&browser_hash);
}
return SUCCESS;
}
static int browser_reg_compare(zval **browser,int num_args, va_list args, zend_hash_key *key)
{
zval **browser_name;
regex_t r;
char *lookup_browser_name = va_arg(args,char *);
zval **found_browser_entry = va_arg(args,zval **);
if (*found_browser_entry) { /* already found */
return 0;
}
if(zend_hash_find((*browser)->value.obj.properties, "browser_name_pattern",sizeof("browser_name_pattern"),(void **) &browser_name) == FAILURE) {
return 0;
}
if (!strchr((*browser_name)->value.str.val,'*')) {
return 0;
}
if (regcomp(&r,(*browser_name)->value.str.val,REG_NOSUB)!=0) {
return 0;
}
if (regexec(&r,lookup_browser_name,0,NULL,0)==0) {
*found_browser_entry = *browser;
}
regfree(&r);
return 0;
}
/* {{{ proto object get_browser(string browser_name)
Get information about the capabilities of a browser */
PHP_FUNCTION(get_browser)
{
zval **agent_name,**agent;
zval *found_browser_entry,*tmp_copy;
char *lookup_browser_name;
if (!INI_STR("browscap")) {
RETURN_FALSE;
}
switch(ZEND_NUM_ARGS()) {
case 0:
if (zend_hash_find(&EG(symbol_table), "HTTP_USER_AGENT", sizeof("HTTP_USER_AGENT"), (void **) &agent_name)==FAILURE) {
zend_error(E_WARNING,"HTTP_USER_AGENT variable is not set, cannot determine user agent name");
RETURN_FALSE;
}
break;
case 1:
if (zend_get_parameters_ex(1,&agent_name)==FAILURE) {
RETURN_FALSE;
}
break;
default:
WRONG_PARAM_COUNT;
break;
}
convert_to_string_ex(agent_name);
if (zend_hash_find(&browser_hash, (*agent_name)->value.str.val,(*agent_name)->value.str.len+1, (void **) &agent)==FAILURE) {
lookup_browser_name = (*agent_name)->value.str.val;
found_browser_entry = NULL;
zend_hash_apply_with_arguments(&browser_hash,(int (*)(void *, int, va_list, zend_hash_key *)) browser_reg_compare,2,lookup_browser_name,&found_browser_entry);
if (found_browser_entry) {
agent = &found_browser_entry;
} else if (zend_hash_find(&browser_hash, DEFAULT_SECTION_NAME, sizeof(DEFAULT_SECTION_NAME), (void **) &agent)==FAILURE) {
RETURN_FALSE;
}
}
object_init(return_value);
zend_hash_copy(return_value->value.obj.properties,(*agent)->value.obj.properties, (copy_ctor_func_t) zval_add_ref, (void *) &tmp_copy, sizeof(zval *));
while (zend_hash_find((*agent)->value.obj.properties, "parent",sizeof("parent"), (void **) &agent_name)==SUCCESS) {
if (zend_hash_find(&browser_hash,(*agent_name)->value.str.val, (*agent_name)->value.str.len+1, (void **)&agent)==FAILURE) {
break;
}
zend_hash_merge(return_value->value.obj.properties,(*agent)->value.obj.properties, (copy_ctor_func_t) zval_add_ref, (void *) &tmp_copy, sizeof(zval *), 0);
}
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
*/
|
