git.m6w6.name Git - m6w6/ext-http/blob - src/php_http_negotiate.h

   1 /*
   2     +--------------------------------------------------------------------+
   3     | PECL :: http                                                       |
   4     +--------------------------------------------------------------------+
   5     | Redistribution and use in source and binary forms, with or without |
   6     | modification, are permitted provided that the conditions mentioned |
   7     | in the accompanying LICENSE file are met.                          |
   8     +--------------------------------------------------------------------+
   9     | Copyright (c) 2004-2014, Michael Wallner <mike@php.net>            |
  10     +--------------------------------------------------------------------+
  11 */
  12
  13 #ifndef PHP_HTTP_NEGOTIATE_H
  14 #define PHP_HTTP_NEGOTIATE_H
  15
  16 PHP_HTTP_API HashTable *php_http_negotiate(const char *value_str, size_t value_len, HashTable *supported, const char *primary_sep_str, size_t primary_sep_len);
  17
  18 static inline HashTable *php_http_negotiate_language(HashTable *supported, php_http_message_t *request)
  19 {
  20         HashTable *result = NULL;
  21         size_t length;
  22         char *value = php_http_env_get_request_header(ZEND_STRL("Accept-Language"), &length, request);
  23
  24         if (value) {
  25                 result = php_http_negotiate(value, length, supported, "-", 1);
  26         }
  27         PTR_FREE(value);
  28
  29         return result;
  30 }
  31
  32 static inline HashTable *php_http_negotiate_encoding(HashTable *supported, php_http_message_t *request)
  33 {
  34         HashTable *result = NULL;
  35         size_t length;
  36         char *value = php_http_env_get_request_header(ZEND_STRL("Accept-Encoding"), &length, request);
  37
  38         if (value) {
  39                 result = php_http_negotiate(value, length, supported, NULL, 0);
  40         }
  41         PTR_FREE(value);
  42
  43         return result;
  44 }
  45
  46 static inline HashTable *php_http_negotiate_charset(HashTable *supported, php_http_message_t *request)
  47 {
  48         HashTable *result = NULL;
  49         size_t length;
  50         char *value = php_http_env_get_request_header(ZEND_STRL("Accept-Charset"), &length, request);
  51
  52         if (value) {
  53                 result = php_http_negotiate(value, length, supported, NULL, 0);
  54         }
  55         PTR_FREE(value);
  56
  57         return result;
  58 }
  59
  60 static inline HashTable *php_http_negotiate_content_type(HashTable *supported, php_http_message_t *request)
  61 {
  62         HashTable *result = NULL;
  63         size_t length;
  64         char *value = php_http_env_get_request_header(ZEND_STRL("Accept"), &length, request);
  65
  66         if (value) {
  67                 result = php_http_negotiate(value, length, supported, "/", 1);
  68         }
  69         PTR_FREE(value);
  70
  71         return result;
  72 }
  73
  74 #define PHP_HTTP_DO_NEGOTIATE_DEFAULT(supported) \
  75         { \
  76                 zval *value; \
  77                 HashPosition pos; \
  78                  \
  79                 zend_hash_internal_pointer_reset_ex((supported), &pos); \
  80                 if ((value = zend_hash_get_current_data_ex((supported), &pos))) { \
  81                         RETVAL_ZVAL(value, 1, 0); \
  82                 } else { \
  83                         RETVAL_NULL(); \
  84                 } \
  85         }
  86
  87 #define PHP_HTTP_DO_NEGOTIATE_HANDLE_DEFAULT(supported, rs_array) \
  88         PHP_HTTP_DO_NEGOTIATE_DEFAULT(supported); \
  89         if (rs_array) { \
  90                 zval *value; \
  91                  \
  92                 ZEND_HASH_FOREACH_VAL(supported, value) \
  93                 { \
  94                         zend_string *zs = zval_get_string(value); \
  95                         add_assoc_double_ex(rs_array, zs->val, zs->len, 1.0); \
  96                         zend_string_release(zs); \
  97                 } \
  98                 ZEND_HASH_FOREACH_END(); \
  99         }
 100
 101 #define PHP_HTTP_DO_NEGOTIATE_HANDLE_RESULT(result, supported, rs_array) \
 102         { \
 103                 zend_string *key; \
 104                 zend_ulong idx; \
 105                  \
 106                 if (zend_hash_num_elements(result) && HASH_KEY_IS_STRING == zend_hash_get_current_key(result, &key, &idx)) { \
 107                         RETVAL_STR_COPY(key); \
 108                 } else { \
 109                         PHP_HTTP_DO_NEGOTIATE_DEFAULT(supported); \
 110                 } \
 111                 \
 112                 if (rs_array) { \
 113                         zend_hash_copy(Z_ARRVAL_P(rs_array), result, (copy_ctor_func_t) zval_add_ref); \
 114                 } \
 115                 \
 116                 zend_hash_destroy(result); \
 117                 FREE_HASHTABLE(result); \
 118         }
 119
 120 #define PHP_HTTP_DO_NEGOTIATE(type, supported, rs_array) \
 121         { \
 122                 HashTable *result; \
 123                 if ((result = php_http_negotiate_ ##type(supported, NULL))) { \
 124                         PHP_HTTP_DO_NEGOTIATE_HANDLE_RESULT(result, supported, rs_array); \
 125                 } else { \
 126                         PHP_HTTP_DO_NEGOTIATE_HANDLE_DEFAULT(supported, rs_array); \
 127                 } \
 128         }
 129
 130 #endif
 131
 132 /*
 133  * Local variables:
 134  * tab-width: 4
 135  * c-basic-offset: 4
 136  * End:
 137  * vim600: noet sw=4 ts=4 fdm=marker
 138  * vim<600: noet sw=4 ts=4
 139  */
 140