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#include "php_snuffleupagus.h"
static inline const sp_cookie *sp_lookup_cookie_config(const zend_string *key) {
const sp_list_node *it = SPCFG(cookie).cookies;
while (it) {
const sp_cookie *config = it->data;
if (config && sp_match_value(key, config->name, config->name_r)) {
return config;
}
it = it->next;
}
return NULL;
}
/* called at RINIT time with each cookie, eventually decrypt said cookie */
int decrypt_cookie(zval *pDest, int num_args, va_list args,
zend_hash_key *hash_key) {
const zend_string *key = hash_key->key;
const sp_cookie *cookie;
/* If there is no key, it shouldn't be encrypted. */
if (!key) {
return ZEND_HASH_APPLY_KEEP;
}
cookie = sp_lookup_cookie_config(key);
/* If the cookie isn't in the conf, it shouldn't be encrypted. */
if (!cookie || !cookie->encrypt) {
return ZEND_HASH_APPLY_KEEP;
}
/* If the cookie has no value, it shouldn't be encrypted. */
if (0 == Z_STRLEN_P(pDest)) {
return ZEND_HASH_APPLY_KEEP;
}
return decrypt_zval(pDest, cookie->simulation, hash_key);
}
static zend_string *encrypt_data(zend_string *data) {
zend_string *z = encrypt_zval(data);
sp_log_debug("Cookie value:%s:", ZSTR_VAL(z));
return z;
}
#if PHP_VERSION_ID >= 70300
static void php_head_parse_cookie_options_array(
zval *options, zend_long *expires, zend_string **path, zend_string **domain,
zend_bool *secure, zend_bool *httponly, zend_string **samesite) {
int found = 0;
zend_string *key;
zval *value;
ZEND_HASH_FOREACH_STR_KEY_VAL(Z_ARRVAL_P(options), key, value) {
if (key) {
if (zend_string_equals_literal_ci(key, "expires")) {
*expires = zval_get_long(value);
found++;
} else if (zend_string_equals_literal_ci(key, "path")) {
*path = zval_get_string(value);
found++;
} else if (zend_string_equals_literal_ci(key, "domain")) {
*domain = zval_get_string(value);
found++;
} else if (zend_string_equals_literal_ci(key, "secure")) {
*secure = zval_is_true(value);
found++;
} else if (zend_string_equals_literal_ci(key, "httponly")) {
*httponly = zval_is_true(value);
found++;
} else if (zend_string_equals_literal_ci(key, "samesite")) {
*samesite = zval_get_string(value);
found++;
} else {
php_error_docref(NULL, E_WARNING,
"Unrecognized key '%s' found in the options array",
ZSTR_VAL(key));
}
} else {
php_error_docref(NULL, E_WARNING,
"Numeric key found in the options array");
}
}
ZEND_HASH_FOREACH_END();
/* Array is not empty but no valid keys were found */
if (found == 0 && zend_hash_num_elements(Z_ARRVAL_P(options)) > 0) {
php_error_docref(NULL, E_WARNING,
"No valid options were found in the given array");
}
}
#endif
PHP_FUNCTION(sp_setcookie) {
zend_string *name = NULL, *value = NULL, *path = NULL, *domain = NULL,
*value_enc = NULL,
#if PHP_VERSION_ID < 70300
*path_samesite = NULL;
#else
*samesite = NULL;
#endif
zend_long expires = 0;
zval *expires_or_options = NULL;
zend_bool secure = 0, httponly = 0;
const sp_cookie *cookie_node = NULL;
const char *cookie_samesite;
// LCOV_EXCL_BR_START
ZEND_PARSE_PARAMETERS_START(1, 7)
Z_PARAM_STR(name)
Z_PARAM_OPTIONAL
Z_PARAM_STR(value)
Z_PARAM_ZVAL(expires_or_options)
Z_PARAM_STR(path)
Z_PARAM_STR(domain)
Z_PARAM_BOOL(secure)
Z_PARAM_BOOL(httponly)
ZEND_PARSE_PARAMETERS_END();
// LCOV_EXCL_BR_END
if (expires_or_options) {
#if PHP_VERSION_ID < 70300
expires = zval_get_long(expires_or_options);
#else
if (Z_TYPE_P(expires_or_options) == IS_ARRAY) {
if (UNEXPECTED(ZEND_NUM_ARGS() > 3)) {
php_error_docref(NULL, E_WARNING,
"Cannot pass arguments after the options array");
RETURN_FALSE;
}
php_head_parse_cookie_options_array(expires_or_options, &expires, &path,
&domain, &secure, &httponly,
&samesite);
} else {
expires = zval_get_long(expires_or_options);
}
#endif
}
/* If the request was issued over HTTPS, the cookie should be "secure" */
if (SPCFG(auto_cookie_secure).enable) {
const zval server_vars = PG(http_globals)[TRACK_VARS_SERVER];
if (Z_TYPE(server_vars) == IS_ARRAY) {
const zval *is_https =
zend_hash_str_find(Z_ARRVAL(server_vars), ZEND_STRL("HTTPS"));
if (NULL != is_https) {
secure = 1;
}
}
}
/* lookup existing configuration for said cookie */
cookie_node = sp_lookup_cookie_config(name);
/* If the cookie's value is encrypted, it won't be usable by
* javascript anyway.
*/
if (cookie_node && cookie_node->encrypt) {
httponly = 1;
}
/* Shall we encrypt the cookie's value? */
if (cookie_node && cookie_node->encrypt && value) {
value_enc = encrypt_data(value);
}
if (cookie_node && cookie_node->samesite) {
if (!path) {
path = zend_string_init("", 0, 0);
}
#if PHP_VERSION_ID < 70300
cookie_samesite = (cookie_node->samesite == lax)
? SAMESITE_COOKIE_FORMAT SP_TOKEN_SAMESITE_LAX
: SAMESITE_COOKIE_FORMAT SP_TOKEN_SAMESITE_STRICT;
/* Concatenating everything, as is in PHP internals */
path_samesite = zend_string_init(ZSTR_VAL(path), ZSTR_LEN(path), 0);
path_samesite = zend_string_extend(
path_samesite, ZSTR_LEN(path) + strlen(cookie_samesite) + 1, 0);
memcpy(ZSTR_VAL(path_samesite) + ZSTR_LEN(path), cookie_samesite,
strlen(cookie_samesite) + 1);
#else
cookie_samesite = (cookie_node->samesite == lax) ? SP_TOKEN_SAMESITE_LAX
: SP_TOKEN_SAMESITE_STRICT;
samesite = zend_string_init(cookie_samesite, strlen(cookie_samesite), 0);
#endif
}
#if PHP_VERSION_ID < 70300
if (php_setcookie(name, (value_enc ? value_enc : value), expires,
(path_samesite ? path_samesite : path), domain, secure, 1,
httponly) == SUCCESS) {
#else
if (php_setcookie(name, (value_enc ? value_enc : value), expires, path,
domain, secure, httponly, samesite, 1) == SUCCESS) {
#endif
RETVAL_TRUE;
} else {
RETVAL_FALSE;
}
if (value_enc) {
zend_string_release(value_enc);
}
#if PHP_VERSION_ID < 70300
if (path_samesite) {
zend_string_release(path_samesite);
}
#endif
}
int hook_cookies() {
HOOK_FUNCTION("setcookie", sp_internal_functions_hook, PHP_FN(sp_setcookie));
return SUCCESS;
}
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