--- /dev/null
+/*
+ +--------------------------------------------------------------------+
+ | PECL :: http |
+ +--------------------------------------------------------------------+
+ | Redistribution and use in source and binary forms, with or without |
+ | modification, are permitted provided that the conditions mentioned |
+ | in the accompanying LICENSE file are met. |
+ +--------------------------------------------------------------------+
+ | Copyright (c) 2004-2014, Michael Wallner <mike@php.net> |
+ +--------------------------------------------------------------------+
+*/
+
+#include "php_http_api.h"
+
+static int php_http_negotiate_sort(const void *a, const void *b TSRMLS_DC)
+{
+ zval result, *first, *second;
+
+ first = *((zval **) (*((Bucket **) a))->pData);
+ second= *((zval **) (*((Bucket **) b))->pData);
+
+ if (numeric_compare_function(&result, first, second TSRMLS_CC) != SUCCESS) {
+ return 0;
+ }
+ return (Z_LVAL(result) > 0 ? -1 : (Z_LVAL(result) < 0 ? 1 : 0));
+}
+
+#define M_PRI 5
+#define M_SEC 2
+#define M_ANY 1
+#define M_NOT 0
+#define M_ALL -1
+static inline unsigned php_http_negotiate_match(const char *param_str, size_t param_len, const char *supported_str, size_t supported_len, const char *sep_str, size_t sep_len)
+{
+ int match = M_NOT;
+
+ if (param_len == supported_len && !strncasecmp(param_str, supported_str, param_len)) {
+ /* that was easy */
+ match = M_ALL;
+ } else if (sep_str && sep_len) {
+ const char *param_sec = php_http_locate_str(param_str, param_len, sep_str, sep_len);
+ size_t param_pri_len = param_sec ? param_sec - param_str : param_len;
+ const char *supported_sec = php_http_locate_str(supported_str, supported_len, sep_str, sep_len);
+ size_t supported_pri_len = supported_sec ? supported_sec - supported_str : supported_len;
+ size_t cmp_len = MIN(param_pri_len, supported_pri_len);
+
+ if (((*param_str == '*') || (*supported_str == '*'))
+ || ((param_pri_len == supported_pri_len) && !strncasecmp(param_str, supported_str, param_pri_len))
+ || ((!param_sec || !supported_sec) && cmp_len && !strncasecmp(param_str, supported_str, cmp_len))
+ ) {
+ match += M_PRI;
+ }
+
+ if (param_sec && supported_sec && !strcasecmp(param_sec, supported_sec)) {
+ match += M_SEC;
+ }
+
+ if ((param_sec && *(param_sec + sep_len) == '*')
+ || (supported_sec && *(supported_sec + sep_len) == '*')
+ || ((*param_str == '*') || (*supported_str == '*'))
+ ) {
+ match += M_ANY;
+ }
+ }
+#if 0
+ fprintf(stderr, "match: %s == %s => %u\n", supported_str, param_str, match);
+#endif
+ return match;
+}
+
+static int php_http_negotiate_reduce(void *p TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key)
+{
+ unsigned best_match = 0;
+ HashPosition pos;
+ php_http_array_hashkey_t key = php_http_array_hashkey_init(0);
+ zval **q = NULL, **val, *supported = php_http_ztyp(IS_STRING, *(zval **)p);
+ HashTable *params = va_arg(args, HashTable *);
+ HashTable *result = va_arg(args, HashTable *);
+ const char *sep_str = va_arg(args, const char *);
+ size_t sep_len = va_arg(args, size_t);
+
+ FOREACH_HASH_KEYVAL(pos, params, key, val) {
+ if (key.type == HASH_KEY_IS_STRING) {
+ unsigned match = php_http_negotiate_match(key.str, key.len-1, Z_STRVAL_P(supported), Z_STRLEN_P(supported), sep_str, sep_len);
+
+ if (match > best_match) {
+ best_match = match;
+ q = val;
+ }
+ }
+ }
+
+ if (q && Z_DVAL_PP(q) > 0) {
+ Z_ADDREF_PP(q);
+ zend_hash_update(result, Z_STRVAL_P(supported), Z_STRLEN_P(supported) + 1, (void *) q, sizeof(zval *), NULL);
+ }
+
+ zval_ptr_dtor(&supported);
+ return ZEND_HASH_APPLY_KEEP;
+}
+
+HashTable *php_http_negotiate(const char *value_str, size_t value_len, HashTable *supported, const char *primary_sep_str, size_t primary_sep_len TSRMLS_DC)
+{
+ HashTable *result = NULL;
+
+ if (value_str && value_len) {
+ unsigned i = 0;
+ zval arr, **val, **arg, **zq;
+ HashPosition pos;
+ HashTable params;
+ php_http_array_hashkey_t key = php_http_array_hashkey_init(1);
+ php_http_params_opts_t opts;
+
+ zend_hash_init(¶ms, 10, NULL, ZVAL_PTR_DTOR, 0);
+ php_http_params_opts_default_get(&opts);
+ opts.input.str = estrndup(value_str, value_len);
+ opts.input.len = value_len;
+ php_http_params_parse(¶ms, &opts TSRMLS_CC);
+ efree(opts.input.str);
+
+ INIT_PZVAL(&arr);
+ array_init(&arr);
+
+ FOREACH_HASH_KEYVAL(pos, ¶ms, key, val) {
+ double q;
+
+ if (SUCCESS == zend_hash_find(Z_ARRVAL_PP(val), ZEND_STRS("arguments"), (void *) &arg)
+ && IS_ARRAY == Z_TYPE_PP(arg)
+ && SUCCESS == zend_hash_find(Z_ARRVAL_PP(arg), ZEND_STRS("q"), (void *) &zq)) {
+ zval *tmp = php_http_ztyp(IS_DOUBLE, *zq);
+
+ q = Z_DVAL_P(tmp);
+ zval_ptr_dtor(&tmp);
+ } else {
+ q = 1.0 - ++i / 100.0;
+ }
+
+ if (key.type == HASH_KEY_IS_STRING) {
+ add_assoc_double_ex(&arr, key.str, key.len, q);
+ } else {
+ add_index_double(&arr, key.num, q);
+ }
+
+ PTR_FREE(key.str);
+ }
+
+#if 0
+ zend_print_zval_r(&arr, 1 TSRMLS_CC);
+#endif
+
+ ALLOC_HASHTABLE(result);
+ zend_hash_init(result, zend_hash_num_elements(supported), NULL, ZVAL_PTR_DTOR, 0);
+ zend_hash_apply_with_arguments(supported TSRMLS_CC, php_http_negotiate_reduce, 4, Z_ARRVAL(arr), result, primary_sep_str, primary_sep_len);
+ zend_hash_destroy(¶ms);
+ zval_dtor(&arr);
+ zend_hash_sort(result, zend_qsort, php_http_negotiate_sort, 0 TSRMLS_CC);
+ }
+
+ return result;
+}
+
+
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: noet sw=4 ts=4 fdm=marker
+ * vim<600: noet sw=4 ts=4
+ */
+
+
projects / m6w6 / ext-http / blobdiff