rfc5987 support
authorMichael Wallner <mike@php.net>
Thu, 16 Jan 2014 15:20:54 +0000 (16:20 +0100)
committerMichael Wallner <mike@php.net>
Thu, 16 Jan 2014 15:20:54 +0000 (16:20 +0100)
php_http_params.c

index 534628f..72af136 100644 (file)
@@ -224,11 +224,11 @@ static inline void sanitize_key(unsigned flags, char *str, size_t len, zval *zv,
                sanitize_default(zv TSRMLS_CC);
        }
 
-       eos = &Z_STRVAL(zv)[Z_STRLEN(zv)-1];
+       eos = &Z_STRVAL_P(zv)[Z_STRLEN_P(zv)-1];
        if (*eos == '*') {
                *eos = '\0';
                *rfc5987 = 1;
-               Z_STRLEN(zv) -= 1;
+               Z_STRLEN_P(zv) -= 1;
        }
 
        if (flags & PHP_HTTP_PARAMS_URLENCODED) {
@@ -240,27 +240,110 @@ static inline void sanitize_key(unsigned flags, char *str, size_t len, zval *zv,
        }
 }
 
-static inline void sanitze_rfc5987(zval *zv, unsigned *flags TSRMLS_DC)
+static inline void sanitize_rfc5987(zval *zv, char **language, zend_bool *latin1 TSRMLS_DC)
 {
+       char *ptr;
+
+       /* examples:
+        * iso-8850-1'de'bl%f6der%20schei%df%21
+        * utf-8'de-DE'bl%c3%b6der%20schei%c3%9f%21
+        */
+
+       switch (Z_STRVAL_P(zv)[0]) {
+       case 'I':
+       case 'i':
+               if (!strncasecmp(Z_STRVAL_P(zv), ZEND_STRL("iso-8859-1"))) {
+                       *latin1 = 1;
+                       ptr = Z_STRVAL_P(zv) + lenof("iso-8859-1");
+                       break;
+               }
+               /* no break */
+       case 'U':
+       case 'u':
+               if (!strncasecmp(Z_STRVAL_P(zv), ZEND_STRL("utf-8"))) {
+                       *latin1 = 0;
+                       ptr = Z_STRVAL_P(zv) + lenof("utf-8");
+                       break;
+               }
+               /* no break */
+       default:
+               return;
+       }
+
+       /* extract language */
+       if (*ptr == '\'') {
+               for (*language = ++ptr; *ptr && *ptr != '\''; ++ptr);
+               if (!*ptr) {
+                       *language = NULL;
+                       return;
+               }
+               *language = estrndup(*language, ptr - *language);
+
+               /* remainder */
+               ptr = estrdup(++ptr);
+               zval_dtor(zv);
+               ZVAL_STRING(zv, ptr, 0);
+       }
+}
+
+static void utf8encode(zval *zv)
+{
+       size_t pos, len = 0;
+       unsigned char *ptr = (unsigned char *) Z_STRVAL_P(zv);
+
+       while (*ptr) {
+               if (*ptr++ >= 0x80) {
+                       ++len;
+               }
+               ++len;
+       }
 
+       ptr = safe_emalloc(1, len, 1);
+       for (len = 0, pos = 0; len <= Z_STRLEN_P(zv); ++len, ++pos) {
+               ptr[pos] = Z_STRVAL_P(zv)[len];
+               if ((ptr[pos]) >= 0x80) {
+                       ptr[pos + 1] = 0x80 | (ptr[pos] & 0x3f);
+                       ptr[pos] = 0xc0 | ((ptr[pos] >> 6) & 0x1f);
+                       ++pos;
+               }
+       }
+       zval_dtor(zv);
+       ZVAL_STRINGL(zv, (char *) ptr, pos-1, 0);
 }
 
 static inline void sanitize_value(unsigned flags, char *str, size_t len, zval *zv, zend_bool rfc5987 TSRMLS_DC)
 {
+       char *language = NULL;
+       zend_bool latin1 = 0;
+
        zval_dtor(zv);
        php_trim(str, len, NULL, 0, zv, 3 TSRMLS_CC);
 
        if (rfc5987) {
-               sanitize_rfc5987(zv, &flags TSRMLS_CC);
+               sanitize_rfc5987(zv, &language, &latin1 TSRMLS_CC);
        }
 
        if (flags & PHP_HTTP_PARAMS_DEFAULT) {
                sanitize_default(zv TSRMLS_CC);
        }
 
-       if (flags & PHP_HTTP_PARAMS_URLENCODED) {
+       if ((flags & PHP_HTTP_PARAMS_URLENCODED) || (rfc5987 && language)) {
                sanitize_urlencoded(zv TSRMLS_CC);
        }
+
+       if (rfc5987 && language) {
+               zval *tmp;
+
+               if (latin1) {
+                       utf8encode(zv);
+               }
+
+               MAKE_STD_ZVAL(tmp);
+               ZVAL_COPY_VALUE(tmp, zv);
+               array_init(zv);
+               add_assoc_zval(zv, language, tmp);
+               STR_FREE(language);
+       }
 }
 
 static inline void prepare_key(unsigned flags, char *old_key, size_t old_len, char **new_key, size_t *new_len TSRMLS_DC)