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openssl.c
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openssl.c
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/*
+----------------------------------------------------------------------+
| PHP Version 4 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2002 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: Stig Venaas <venaas@php.net> |
| Wez Furlong <wez@thebrainroom.com> |
| Sascha Kettler <kettler@gmx.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_openssl.h"
/* PHP Includes */
#include "ext/standard/file.h"
#include "ext/standard/info.h"
/* OpenSSL includes */
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/crypto.h>
#include <openssl/pem.h>
#include <openssl/err.h>
#include <openssl/conf.h>
#include <openssl/rand.h>
#define DEFAULT_KEY_LENGTH 512
#define MIN_KEY_LENGTH 384
#define DEBUG_SMIME 0
static unsigned char arg2_force_ref[] =
{ 2, BYREF_NONE, BYREF_FORCE };
static unsigned char arg2and3_force_ref[] =
{ 3, BYREF_NONE, BYREF_FORCE, BYREF_FORCE };
enum php_openssl_key_type {
OPENSSL_KEYTYPE_RSA,
OPENSSL_KEYTYPE_DSA,
OPENSSL_KEYTYPE_DH,
OPENSSL_KEYTYPE_DEFAULT = OPENSSL_KEYTYPE_RSA
};
/* {{{ openssl_functions[]
*/
function_entry openssl_functions[] = {
/* public/private key functions */
PHP_FE(openssl_pkey_free, NULL)
PHP_FE(openssl_pkey_new, NULL)
PHP_FE(openssl_pkey_export, arg2_force_ref)
PHP_FE(openssl_pkey_export_to_file, NULL)
PHP_FE(openssl_pkey_get_private, NULL)
PHP_FE(openssl_pkey_get_public, NULL)
PHP_FALIAS(openssl_free_key, openssl_pkey_free, NULL)
PHP_FALIAS(openssl_get_privatekey, openssl_pkey_get_private, NULL)
PHP_FALIAS(openssl_get_publickey, openssl_pkey_get_public, NULL)
/* x.509 cert funcs */
PHP_FE(openssl_x509_read, NULL)
PHP_FE(openssl_x509_free, NULL)
PHP_FE(openssl_x509_parse, NULL)
PHP_FE(openssl_x509_checkpurpose, NULL)
PHP_FE(openssl_x509_check_private_key, NULL)
PHP_FE(openssl_x509_export, arg2_force_ref)
PHP_FE(openssl_x509_export_to_file, NULL)
/* CSR funcs */
PHP_FE(openssl_csr_new, arg2_force_ref)
PHP_FE(openssl_csr_export, arg2_force_ref)
PHP_FE(openssl_csr_export_to_file, NULL)
PHP_FE(openssl_csr_sign, NULL)
PHP_FE(openssl_sign, arg2_force_ref)
PHP_FE(openssl_verify, NULL)
PHP_FE(openssl_seal, arg2and3_force_ref)
PHP_FE(openssl_open, arg2_force_ref)
/* for S/MIME handling */
PHP_FE(openssl_pkcs7_verify, NULL)
PHP_FE(openssl_pkcs7_decrypt, NULL)
PHP_FE(openssl_pkcs7_sign, NULL)
PHP_FE(openssl_pkcs7_encrypt, NULL)
PHP_FE(openssl_private_encrypt, arg2_force_ref)
PHP_FE(openssl_private_decrypt, arg2_force_ref)
PHP_FE(openssl_public_encrypt, arg2_force_ref)
PHP_FE(openssl_public_decrypt, arg2_force_ref)
PHP_FE(openssl_error_string, NULL)
{NULL, NULL, NULL}
};
/* }}} */
/* {{{ openssl_module_entry
*/
zend_module_entry openssl_module_entry = {
STANDARD_MODULE_HEADER,
"openssl",
openssl_functions,
PHP_MINIT(openssl),
NULL,
NULL,
NULL,
PHP_MINFO(openssl),
NO_VERSION_YET,
STANDARD_MODULE_PROPERTIES
};
/* }}} */
#ifdef COMPILE_DL_OPENSSL
ZEND_GET_MODULE(openssl)
#endif
static int le_key;
static int le_x509;
static int le_csr;
/* {{{ resource destructors */
static void php_pkey_free(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
EVP_PKEY *pkey = (EVP_PKEY *)rsrc->ptr;
assert(pkey != NULL);
EVP_PKEY_free(pkey);
}
static void php_x509_free(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
X509 *x509 = (X509 *)rsrc->ptr;
X509_free(x509);
}
static void php_csr_free(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
X509_REQ * csr = (X509_REQ*)rsrc->ptr;
X509_REQ_free(csr);
}
/* }}} */
/* {{{ openssl safe_mode & open_basedir checks */
inline static int php_openssl_safe_mode_chk(char *filename TSRMLS_DC)
{
if (PG(safe_mode) && (!php_checkuid(filename, NULL, CHECKUID_CHECK_FILE_AND_DIR))) {
return -1;
}
if (php_check_open_basedir(filename TSRMLS_CC)) {
return -1;
}
return 0;
}
/* }}} */
/* {{{ openssl -> PHP "bridging" */
/* true global; readonly after module startup */
static char default_ssl_conf_filename[MAXPATHLEN];
struct php_x509_request {
LHASH * global_config; /* Global SSL config */
LHASH * req_config; /* SSL config for this request */
const EVP_MD * md_alg;
const EVP_MD * digest;
char * section_name,
* config_filename,
* digest_name,
* extensions_section,
* request_extensions_section;
int priv_key_bits;
int priv_key_type;
int priv_key_encrypt;
EVP_PKEY * priv_key;
};
static X509 * php_openssl_x509_from_zval(zval ** val, int makeresource, long * resourceval TSRMLS_DC);
static EVP_PKEY * php_openssl_evp_from_zval(zval ** val, int public_key, char * passphrase, int makeresource, long * resourceval TSRMLS_DC);
static int php_openssl_is_private_key(EVP_PKEY* pkey TSRMLS_DC);
static X509_STORE * setup_verify(zval * calist TSRMLS_DC);
static STACK_OF(X509) * load_all_certs_from_file(char *certfile);
static X509_REQ * php_openssl_csr_from_zval(zval ** val, int makeresource, long * resourceval TSRMLS_DC);
static EVP_PKEY * php_openssl_generate_private_key(struct php_x509_request * req TSRMLS_DC);
static void add_assoc_name_entry(zval * val, char * key, X509_NAME * name, int shortname TSRMLS_DC)
{
zval * subitem;
int i;
char * sn, * ln;
int nid;
X509_NAME_ENTRY * ne;
ASN1_STRING * str;
ASN1_OBJECT * obj;
MAKE_STD_ZVAL(subitem);
array_init(subitem);
for (i = 0; i < X509_NAME_entry_count(name); i++) {
ne = X509_NAME_get_entry(name, i);
obj = X509_NAME_ENTRY_get_object(ne);
str = X509_NAME_ENTRY_get_data(ne);
nid = OBJ_obj2nid(obj);
if (shortname) {
sn = (char*)OBJ_nid2sn(nid);
add_assoc_stringl(subitem, sn, str->data, str->length, 1);
}
else {
ln = (char*)OBJ_nid2ln(nid);
add_assoc_stringl(subitem, ln, str->data, str->length, 1);
}
}
zend_hash_update(HASH_OF(val), key, strlen(key) + 1, (void *)&subitem, sizeof(subitem), NULL);
}
static void add_assoc_asn1_string(zval * val, char * key, ASN1_STRING * str)
{
add_assoc_stringl(val, key, str->data, str->length, 1);
}
static time_t asn1_time_to_time_t(ASN1_UTCTIME * timestr TSRMLS_DC)
{
/*
This is how the time string is formatted:
sprintf(p,"%02d%02d%02d%02d%02d%02dZ",ts->tm_year%100,
ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec);
*/
time_t ret;
struct tm thetime;
char * strbuf;
char * thestr;
long gmadjust = 0;
if (timestr->length < 13) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "extension author too lazy to parse %s correctly", timestr->data);
return (time_t)-1;
}
strbuf = estrdup(timestr->data);
memset(&thetime, 0, sizeof(thetime));
/* we work backwards so that we can use atoi more easily */
thestr = strbuf + timestr->length - 3;
thetime.tm_sec = atoi(thestr);
*thestr = '\0';
thestr -= 2;
thetime.tm_min = atoi(thestr);
*thestr = '\0';
thestr -= 2;
thetime.tm_hour = atoi(thestr);
*thestr = '\0';
thestr -= 2;
thetime.tm_mday = atoi(thestr);
*thestr = '\0';
thestr -= 2;
thetime.tm_mon = atoi(thestr)-1;
*thestr = '\0';
thestr -= 2;
thetime.tm_year = atoi(thestr);
if (thetime.tm_year < 68)
thetime.tm_year += 100;
thetime.tm_isdst = -1;
ret = mktime(&thetime);
#if HAVE_TM_GMTOFF
gmadjust = thetime.tm_gmtoff;
#else
/*
** If correcting for daylight savings time, we set the adjustment to
** the value of timezone - 3600 seconds. Otherwise, we need to overcorrect and
** set the adjustment to the main timezone + 3600 seconds.
*/
gmadjust = -(thetime.tm_isdst ? (long)timezone - 3600 : (long)timezone + 3600);
#endif
ret += gmadjust;
efree(strbuf);
return ret;
}
static inline int php_openssl_config_check_syntax(
const char * section_label,
const char * config_filename,
const char * section,
LHASH * config TSRMLS_DC)
{
X509V3_CTX ctx;
X509V3_set_ctx_test(&ctx);
X509V3_set_conf_lhash(&ctx, config);
if (!X509V3_EXT_add_conf(config, &ctx, (char *)section, NULL)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error loading %s section %s of %s",
section_label,
section,
config_filename);
return FAILURE;
}
return SUCCESS;
}
static int add_oid_section(struct php_x509_request * req TSRMLS_DC)
{
char * str;
STACK_OF(CONF_VALUE) * sktmp;
CONF_VALUE * cnf;
int i;
str = CONF_get_string(req->req_config, NULL, "oid_section");
if (str == NULL)
return SUCCESS;
sktmp = CONF_get_section(req->req_config, str);
if (sktmp == NULL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "problem loading oid section %s", str);
return FAILURE;
}
for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
cnf = sk_CONF_VALUE_value(sktmp, i);
if (OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "problem creating object %s=%s",
cnf->name, cnf->value);
return FAILURE;
}
}
return SUCCESS;
}
#define PHP_SSL_REQ_INIT(req) memset(req, 0, sizeof(*req))
#define PHP_SSL_REQ_DISPOSE(req) php_openssl_dispose_config(req TSRMLS_CC)
#define PHP_SSL_REQ_PARSE(req, zval) php_openssl_parse_config(req, zval TSRMLS_CC)
#define PHP_SSL_CONFIG_SYNTAX_CHECK(var) if (req->var && php_openssl_config_check_syntax(#var, \
req->config_filename, req->var, req->req_config TSRMLS_CC) == FAILURE) return FAILURE
#define SET_OPTIONAL_STRING_ARG(key, varname, defval) \
if (optional_args && zend_hash_find(Z_ARRVAL_P(optional_args), key, sizeof(key), (void**)&item) == SUCCESS) \
varname = Z_STRVAL_PP(item); \
else \
varname = defval
#define SET_OPTIONAL_LONG_ARG(key, varname, defval) \
if (optional_args && zend_hash_find(Z_ARRVAL_P(optional_args), key, sizeof(key), (void**)&item) == SUCCESS) \
varname = Z_LVAL_PP(item); \
else \
varname = defval
static int php_openssl_parse_config(
struct php_x509_request * req,
zval * optional_args
TSRMLS_DC
)
{
char * str;
zval ** item;
SET_OPTIONAL_STRING_ARG("config", req->config_filename, default_ssl_conf_filename);
SET_OPTIONAL_STRING_ARG("config_section_name", req->section_name, "req");
req->global_config = CONF_load(NULL, default_ssl_conf_filename, NULL);
req->req_config = CONF_load(NULL, req->config_filename, NULL);
if (req->req_config == NULL)
return FAILURE;
/* read in the oids */
str = CONF_get_string(req->req_config, NULL, "oid_file");
if (str && !php_openssl_safe_mode_chk(str TSRMLS_CC)) {
BIO *oid_bio = BIO_new_file(str, "r");
if (oid_bio) {
OBJ_create_objects(oid_bio);
BIO_free(oid_bio);
}
}
if (add_oid_section(req TSRMLS_CC) == FAILURE)
return FAILURE;
SET_OPTIONAL_STRING_ARG("digest_alg", req->digest_name,
CONF_get_string(req->req_config, req->section_name, "default_md"));
SET_OPTIONAL_STRING_ARG("x509_extensions", req->extensions_section,
CONF_get_string(req->req_config, req->section_name, "x509_extensions"));
SET_OPTIONAL_STRING_ARG("req_extensions", req->extensions_section,
CONF_get_string(req->req_config, req->request_extensions_section, "req_extensions"));
SET_OPTIONAL_LONG_ARG("private_key_bits", req->priv_key_bits,
CONF_get_number(req->req_config, req->section_name, "default_bits"));
SET_OPTIONAL_LONG_ARG("private_key_type", req->priv_key_type, OPENSSL_KEYTYPE_DEFAULT);
if (optional_args && zend_hash_find(Z_ARRVAL_P(optional_args), "encrypt_key", sizeof("encrypt_key"), (void**)&item) == SUCCESS) {
req->priv_key_encrypt = Z_BVAL_PP(item);
}
else {
str = CONF_get_string(req->req_config, req->section_name, "encrypt_rsa_key");
if (str == NULL)
str = CONF_get_string(req->req_config, req->section_name, "encrypt_key");
if (str && strcmp(str, "no") == 0)
req->priv_key_encrypt = 0;
else
req->priv_key_encrypt = 1;
}
/* digest alg */
if (req->digest_name == NULL)
req->digest_name = CONF_get_string(req->req_config, req->section_name, "default_md");
if (req->digest_name)
req->digest = req->md_alg = EVP_get_digestbyname(req->digest_name);
if (req->md_alg == NULL)
req->md_alg = req->digest = EVP_md5();
PHP_SSL_CONFIG_SYNTAX_CHECK(extensions_section);
/* set the string mask */
str = CONF_get_string(req->req_config, req->section_name, "string_mask");
if (str && !ASN1_STRING_set_default_mask_asc(str)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid global string mask setting %s", str);
return FAILURE;
}
if (req->request_extensions_section == NULL)
req->request_extensions_section = CONF_get_string(req->req_config, req->section_name, "req_extensions");
PHP_SSL_CONFIG_SYNTAX_CHECK(request_extensions_section);
return SUCCESS;
}
static void php_openssl_dispose_config(struct php_x509_request * req TSRMLS_DC)
{
if (req->priv_key) {
EVP_PKEY_free(req->priv_key);
req->priv_key = NULL;
}
if (req->global_config) {
CONF_free(req->global_config);
req->global_config = NULL;
}
if (req->req_config) {
CONF_free(req->req_config);
req->req_config = NULL;
}
}
static int php_openssl_load_rand_file(const char * file, int *egdsocket, int *seeded)
{
char buffer[MAXPATHLEN];
TSRMLS_FETCH();
*egdsocket = 0;
*seeded = 0;
#ifdef WINDOWS
RAND_screen();
#endif
if (file == NULL)
file = RAND_file_name(buffer, sizeof(buffer));
else if (RAND_egd(file) > 0) {
/* if the given filename is an EGD socket, don't
* write anything back to it */
*egdsocket = 1;
return SUCCESS;
}
if (file == NULL || !RAND_load_file(file, -1)) {
if (RAND_status() == 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "unable to load random state; not enough random data!");
return FAILURE;
}
return FAILURE;
}
*seeded = 1;
return SUCCESS;
}
static int php_openssl_write_rand_file(const char * file, int egdsocket, int seeded)
{
char buffer[MAXPATHLEN];
TSRMLS_FETCH();
if (egdsocket || !seeded) {
/* if we did not manage to read the seed file, we should not write
* a low-entropy seed file back */
return FAILURE;
}
if (file == NULL)
file = RAND_file_name(buffer, sizeof(buffer));
if (file == NULL || !RAND_write_file(file)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "unable to write random state");
return FAILURE;
}
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINIT_FUNCTION
*/
PHP_MINIT_FUNCTION(openssl)
{
char * config_filename;
le_key = zend_register_list_destructors_ex(php_pkey_free, NULL, "OpenSSL key", module_number);
le_x509 = zend_register_list_destructors_ex(php_x509_free, NULL, "OpenSSL X.509", module_number);
le_csr = zend_register_list_destructors_ex(php_csr_free, NULL, "OpenSSL X.509 CSR", module_number);
OpenSSL_add_all_ciphers();
OpenSSL_add_all_digests();
OpenSSL_add_all_algorithms();
ERR_load_ERR_strings();
ERR_load_crypto_strings();
ERR_load_EVP_strings();
/* purposes for cert purpose checking */
REGISTER_LONG_CONSTANT("X509_PURPOSE_SSL_CLIENT", X509_PURPOSE_SSL_CLIENT, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("X509_PURPOSE_SSL_SERVER", X509_PURPOSE_SSL_SERVER, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("X509_PURPOSE_NS_SSL_SERVER", X509_PURPOSE_NS_SSL_SERVER, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("X509_PURPOSE_SMIME_SIGN", X509_PURPOSE_SMIME_SIGN, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("X509_PURPOSE_SMIME_ENCRYPT", X509_PURPOSE_SMIME_ENCRYPT, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("X509_PURPOSE_CRL_SIGN", X509_PURPOSE_CRL_SIGN, CONST_CS|CONST_PERSISTENT);
#ifdef X509_PURPOSE_ANY
REGISTER_LONG_CONSTANT("X509_PURPOSE_ANY", X509_PURPOSE_ANY, CONST_CS|CONST_PERSISTENT);
#endif
/* flags for S/MIME */
REGISTER_LONG_CONSTANT("PKCS7_DETACHED", PKCS7_DETACHED, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PKCS7_TEXT", PKCS7_TEXT, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PKCS7_NOINTERN", PKCS7_NOINTERN, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PKCS7_NOVERIFY", PKCS7_NOVERIFY, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PKCS7_NOCHAIN", PKCS7_NOCHAIN, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PKCS7_NOCERTS", PKCS7_NOCERTS, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PKCS7_NOATTR", PKCS7_NOATTR, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PKCS7_BINARY", PKCS7_BINARY, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PKCS7_NOSIGS", PKCS7_NOSIGS, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("OPENSSL_PKCS1_PADDING",
RSA_PKCS1_PADDING,
CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("OPENSSL_SSLV23_PADDING",
RSA_SSLV23_PADDING,
CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("OPENSSL_NO_PADDING",
RSA_NO_PADDING,
CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("OPENSSL_PKCS1_OAEP_PADDING",
RSA_PKCS1_OAEP_PADDING,
CONST_CS|CONST_PERSISTENT);
/* Values for key types */
REGISTER_LONG_CONSTANT("OPENSSL_KEYTYPE_RSA",
OPENSSL_KEYTYPE_RSA, CONST_CS | CONST_PERSISTENT);
#ifndef NO_DSA
REGISTER_LONG_CONSTANT("OPENSSL_KEYTYPE_DSA",
OPENSSL_KEYTYPE_DSA, CONST_CS | CONST_PERSISTENT);
#endif
REGISTER_LONG_CONSTANT("OPENSSL_KEYTYPE_DH",
OPENSSL_KEYTYPE_DH, CONST_CS | CONST_PERSISTENT);
/* Determine default SSL configuration file */
config_filename = getenv("OPENSSL_CONF");
if (config_filename == NULL)
config_filename = getenv("SSLEAY_CONF");
/* default to 'openssl.cnf' if no environment variable is set */
if (config_filename == NULL) {
snprintf(default_ssl_conf_filename, sizeof(default_ssl_conf_filename), "%s/%s",
X509_get_default_cert_area(),
"openssl.cnf");
}
else
strncpy(default_ssl_conf_filename, config_filename, sizeof(default_ssl_conf_filename));
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION
*/
PHP_MINFO_FUNCTION(openssl)
{
php_info_print_table_start();
php_info_print_table_row(2, "OpenSSL support", "enabled");
php_info_print_table_row(2, "OpenSSL Version", OPENSSL_VERSION_TEXT);
php_info_print_table_end();
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION
*/
PHP_MSHUTDOWN_FUNCTION(openssl)
{
EVP_cleanup();
return SUCCESS;
}
/* }}} */
/* {{{ x509 cert functions */
/* {{{ php_openssl_x509_from_zval
Given a zval, coerce it into an X509 object.
The zval can be:
. X509 resource created using openssl_read_x509()
. if it starts with file:// then it will be interpreted as the path to that cert
. it will be interpreted as the cert data
If you supply makeresource, the result will be registered as an x509 resource and
it's value returned in makeresource.
*/
static X509 * php_openssl_x509_from_zval(zval ** val, int makeresource, long * resourceval TSRMLS_DC)
{
X509 *cert = NULL;
if (resourceval)
*resourceval = -1;
if (Z_TYPE_PP(val) == IS_RESOURCE) {
/* is it an x509 resource ? */
void * what;
int type;
what = zend_fetch_resource(val TSRMLS_CC, -1, "OpenSSL X.509", &type, 1, le_x509);
if (!what)
return NULL;
/* this is so callers can decide if they should free the X509 */
if (resourceval)
*resourceval = Z_LVAL_PP(val);
if (type == le_x509)
return (X509*)what;
/* other types could be used here - eg: file pointers and read in the data from them */
return NULL;
}
/* force it to be a string and check if it refers to a file */
convert_to_string_ex(val);
if (Z_STRLEN_PP(val) > 7 && memcmp(Z_STRVAL_PP(val), "file://", 7) == 0) {
/* read cert from the named file */
BIO *in;
if (php_openssl_safe_mode_chk(Z_STRVAL_PP(val) + 7 TSRMLS_CC)) {
return NULL;
}
in = BIO_new_file(Z_STRVAL_PP(val) + 7, "r");
if (in == NULL)
return NULL;
cert = PEM_read_bio_X509(in, NULL, NULL, NULL);
BIO_free(in);
}
else {
BIO *in;
in = BIO_new_mem_buf(Z_STRVAL_PP(val), Z_STRLEN_PP(val));
if (in == NULL)
return NULL;
cert = (X509 *) PEM_ASN1_read_bio((char *(*)())d2i_X509,
PEM_STRING_X509, in,
NULL, NULL, NULL);
BIO_free(in);
}
if (cert && makeresource && resourceval) {
*resourceval = zend_list_insert(cert, le_x509);
}
return cert;
}
/* }}} */
/* {{{ proto bool openssl_x509_export_to_file(mixed x509, string outfilename [, bool notext = true])
Exports a CERT to file or a var */
PHP_FUNCTION(openssl_x509_export_to_file)
{
X509 * cert;
zval * zcert = NULL;
zend_bool notext = 1;
BIO * bio_out;
long certresource;
char * filename;
long filename_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs|b", &zcert, &filename, &filename_len, ¬ext) == FAILURE)
return;
RETVAL_FALSE;
cert = php_openssl_x509_from_zval(&zcert, 0, &certresource TSRMLS_CC);
if (cert == NULL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "cannot get cert from parameter 1");
return;
}
if (php_openssl_safe_mode_chk(filename TSRMLS_CC)) {
return;
}
bio_out = BIO_new_file(filename, "w");
if (bio_out) {
if (!notext)
X509_print(bio_out, cert);
PEM_write_bio_X509(bio_out, cert);
RETVAL_TRUE;
}
else
php_error_docref(NULL TSRMLS_CC, E_WARNING, "error opening file %s", filename);
if (certresource == -1 && cert)
X509_free(cert);
BIO_free(bio_out);
}
/* }}} */
/* {{{ proto bool openssl_x509_export(mixed x509, string &out [, bool notext = true])
Exports a CERT to file or a var */
PHP_FUNCTION(openssl_x509_export)
{
X509 * cert;
zval * zcert = NULL, *zout=NULL;
zend_bool notext = 1;
BIO * bio_out;
long certresource;
char * bio_mem_ptr;
long bio_mem_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rz|b", &zcert, &zout, ¬ext) == FAILURE)
return;
RETVAL_FALSE;
cert = php_openssl_x509_from_zval(&zcert, 0, &certresource TSRMLS_CC);
if (cert == NULL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "cannot get cert from parameter 1");
return;
}
bio_out = BIO_new(BIO_s_mem());
if (!notext)
X509_print(bio_out, cert);
PEM_write_bio_X509(bio_out, cert);
bio_mem_len = BIO_get_mem_data(bio_out, &bio_mem_ptr);
ZVAL_STRINGL(zout, bio_mem_ptr, bio_mem_len, 1);
RETVAL_TRUE;
if (certresource == -1 && cert)
X509_free(cert);
BIO_free(bio_out);
}
/* }}} */
/* {{{ proto bool openssl_x509_check_private_key(mixed cert, mixed key)
Checks if a private key corresponds to a CERT */
PHP_FUNCTION(openssl_x509_check_private_key)
{
zval * zcert, *zkey;
X509 * cert = NULL;
EVP_PKEY * key = NULL;
long certresource = -1, keyresource = -1;
RETVAL_FALSE;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zz", &zcert, &zkey) == FAILURE)
return;
cert = php_openssl_x509_from_zval(&zcert, 0, &certresource TSRMLS_CC);
if (cert == NULL)
RETURN_FALSE;
key = php_openssl_evp_from_zval(&zkey, 0, "", 1, &keyresource TSRMLS_CC);
if (key) {
RETVAL_BOOL(X509_check_private_key(cert, key));
}
if (keyresource == -1 && key)
EVP_PKEY_free(key);
if (certresource == -1 && cert)
X509_free(cert);
}
/* }}} */
/* {{{ proto array openssl_x509_parse(mixed x509 [, bool shortnames=true])
Returns an array of the fields/values of the CERT */
PHP_FUNCTION(openssl_x509_parse)
{
zval * zcert;
X509 * cert = NULL;
long certresource = -1;
int i;
zend_bool useshortnames = 1;
char * tmpstr;
zval * subitem;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|b", &zcert, &useshortnames) == FAILURE)
return;
cert = php_openssl_x509_from_zval(&zcert, 0, &certresource TSRMLS_CC);
if (cert == NULL)
RETURN_FALSE;
array_init(return_value);
if (cert->name)
add_assoc_string(return_value, "name", cert->name, 1);
/* add_assoc_bool(return_value, "valid", cert->valid); */
add_assoc_name_entry(return_value, "subject", X509_get_subject_name(cert), useshortnames TSRMLS_CC);
/* hash as used in CA directories to lookup cert by subject name */
{
char buf[32];
snprintf(buf, sizeof(buf), "%08lx", X509_subject_name_hash(cert));
add_assoc_string(return_value, "hash", buf, 1);
}
add_assoc_name_entry(return_value, "issuer", X509_get_issuer_name(cert), useshortnames TSRMLS_CC);
add_assoc_long(return_value, "version", X509_get_version(cert));
add_assoc_long(return_value, "serialNumber", ASN1_INTEGER_get(X509_get_serialNumber(cert)));
add_assoc_asn1_string(return_value, "validFrom", X509_get_notBefore(cert));
add_assoc_asn1_string(return_value, "validTo", X509_get_notAfter(cert));
add_assoc_long(return_value, "validFrom_time_t", asn1_time_to_time_t(X509_get_notBefore(cert) TSRMLS_CC));
add_assoc_long(return_value, "validTo_time_t", asn1_time_to_time_t(X509_get_notAfter(cert) TSRMLS_CC));
tmpstr = X509_alias_get0(cert, NULL);
if (tmpstr)
add_assoc_string(return_value, "alias", tmpstr, 1);
/*
add_assoc_long(return_value, "signaturetypeLONG", X509_get_signature_type(cert));
add_assoc_string(return_value, "signaturetype", OBJ_nid2sn(X509_get_signature_type(cert)), 1);
add_assoc_string(return_value, "signaturetypeLN", OBJ_nid2ln(X509_get_signature_type(cert)), 1);
*/
MAKE_STD_ZVAL(subitem);
array_init(subitem);
/* NOTE: the purposes are added as integer keys - the keys match up to the X509_PURPOSE_SSL_XXX defines
in x509v3.h */
for (i = 0; i < X509_PURPOSE_get_count(); i++) {
int id, purpset;
char * pname;
X509_PURPOSE * purp;
zval * subsub;
MAKE_STD_ZVAL(subsub);
array_init(subsub);
purp = X509_PURPOSE_get0(i);
id = X509_PURPOSE_get_id(purp);
purpset = X509_check_purpose(cert, id, 0);
add_index_bool(subsub, 0, purpset);
purpset = X509_check_purpose(cert, id, 1);
add_index_bool(subsub, 1, purpset);
pname = useshortnames ? X509_PURPOSE_get0_sname(purp) : X509_PURPOSE_get0_name(purp);
add_index_string(subsub, 2, pname, 1);
/* NOTE: if purpset > 1 then it's a warning - we should mention it ? */
add_index_zval(subitem, id, subsub);
}
add_assoc_zval(return_value, "purposes", subitem);
if (certresource == -1 && cert)
X509_free(cert);
}
/* }}} */
/* {{{ load_all_certs_from_file */
static STACK_OF(X509) * load_all_certs_from_file(char *certfile)
{
STACK_OF(X509_INFO) *sk=NULL;
STACK_OF(X509) *stack=NULL, *ret=NULL;
BIO *in=NULL;
X509_INFO *xi;
TSRMLS_FETCH();
if(!(stack = sk_X509_new_null())) {
php_error_docref(NULL TSRMLS_CC, E_ERROR, "memory allocation failure");
goto end;
}
if (php_openssl_safe_mode_chk(certfile TSRMLS_CC)) {
goto end;
}
if(!(in=BIO_new_file(certfile, "r"))) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "error opening the file, %s", certfile);
goto end;
}
/* This loads from a file, a stack of x509/crl/pkey sets */
if(!(sk=PEM_X509_INFO_read_bio(in, NULL, NULL, NULL))) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "error reading the file, %s", certfile);
goto end;
}
/* scan over it and pull out the certs */
while (sk_X509_INFO_num(sk))
{
xi=sk_X509_INFO_shift(sk);
if (xi->x509 != NULL)
{
sk_X509_push(stack,xi->x509);
xi->x509=NULL;
}
X509_INFO_free(xi);
}
if(!sk_X509_num(stack)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "no certificates in file, %s", certfile);
sk_X509_free(stack);
goto end;
}
ret=stack;
end:
BIO_free(in);
sk_X509_INFO_free(sk);
return ret;
}
/* }}} */
/* {{{ check_cert */
static int check_cert(X509_STORE *ctx, X509 *x, STACK_OF(X509) *untrustedchain, int purpose)
{
int ret=0;
X509_STORE_CTX *csc;
TSRMLS_FETCH();
csc = X509_STORE_CTX_new();
if (csc == NULL)
{
php_error_docref(NULL TSRMLS_CC, E_ERROR, "memory allocation failure");
return 0;
}
X509_STORE_CTX_init(csc, ctx, x, untrustedchain);
if(purpose >= 0)
X509_STORE_CTX_set_purpose(csc, purpose);
ret = X509_verify_cert(csc);
X509_STORE_CTX_free(csc);
return ret;
}
/* }}} */
/* {{{ proto int openssl_x509_checkpurpose(mixed x509cert, int purpose, array cainfo [, string untrustedfile])
Checks the CERT to see if it can be used for the purpose in purpose. cainfo holds information about trusted CAs */
PHP_FUNCTION(openssl_x509_checkpurpose)
{
zval * zcert, * zcainfo = NULL;
X509_STORE * cainfo = NULL;
X509 * cert = NULL;
long certresource = -1;
STACK_OF(X509) * untrustedchain = NULL;