Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tag: php-5.4.0RC1
Fetching contributors…

Cannot retrieve contributors at this time

file 953 lines (804 sloc) 27.067 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953
/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2011 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.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. |
+----------------------------------------------------------------------+
| Author: Wez Furlong <wez@thebrainroom.com> |
+----------------------------------------------------------------------+
*/

/* $Id$ */

#include "php.h"
#include "ext/standard/file.h"
#include "ext/standard/url.h"
#include "streams/php_streams_int.h"
#include "ext/standard/php_smart_str.h"
#include "php_network.h"
#include "php_openssl.h"
#include <openssl/ssl.h>
#include <openssl/x509.h>
#include <openssl/err.h>

#ifdef PHP_WIN32
#include "win32/time.h"
#endif

#ifdef NETWARE
#include <sys/select.h>
#endif

int php_openssl_apply_verification_policy(SSL *ssl, X509 *peer, php_stream *stream TSRMLS_DC);
SSL *php_SSL_new_from_context(SSL_CTX *ctx, php_stream *stream TSRMLS_DC);
int php_openssl_get_x509_list_id(void);

/* This implementation is very closely tied to the that of the native
* sockets implemented in the core.
* Don't try this technique in other extensions!
* */

typedef struct _php_openssl_netstream_data_t {
php_netstream_data_t s;
SSL *ssl_handle;
SSL_CTX *ctx;
struct timeval connect_timeout;
int enable_on_connect;
int is_client;
int ssl_active;
php_stream_xport_crypt_method_t method;
char *sni;
unsigned state_set:1;
unsigned _spare:31;
} php_openssl_netstream_data_t;

php_stream_ops php_openssl_socket_ops;

/* it doesn't matter that we do some hash traversal here, since it is done only
* in an error condition arising from a network connection problem */
static int is_http_stream_talking_to_iis(php_stream *stream TSRMLS_DC)
{
if (stream->wrapperdata && stream->wrapper && strcasecmp(stream->wrapper->wops->label, "HTTP") == 0) {
/* the wrapperdata is an array zval containing the headers */
zval **tmp;

#define SERVER_MICROSOFT_IIS "Server: Microsoft-IIS"
#define SERVER_GOOGLE "Server: GFE/"

zend_hash_internal_pointer_reset(Z_ARRVAL_P(stream->wrapperdata));
while (SUCCESS == zend_hash_get_current_data(Z_ARRVAL_P(stream->wrapperdata), (void**)&tmp)) {

if (strncasecmp(Z_STRVAL_PP(tmp), SERVER_MICROSOFT_IIS, sizeof(SERVER_MICROSOFT_IIS)-1) == 0) {
return 1;
} else if (strncasecmp(Z_STRVAL_PP(tmp), SERVER_GOOGLE, sizeof(SERVER_GOOGLE)-1) == 0) {
return 1;
}

zend_hash_move_forward(Z_ARRVAL_P(stream->wrapperdata));
}
}
return 0;
}

static int handle_ssl_error(php_stream *stream, int nr_bytes, zend_bool is_init TSRMLS_DC)
{
php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract;
int err = SSL_get_error(sslsock->ssl_handle, nr_bytes);
char esbuf[512];
smart_str ebuf = {0};
unsigned long ecode;
int retry = 1;

switch(err) {
case SSL_ERROR_ZERO_RETURN:
/* SSL terminated (but socket may still be active) */
retry = 0;
break;
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
/* re-negotiation, or perhaps the SSL layer needs more
* packets: retry in next iteration */
errno = EAGAIN;
retry = is_init ? 1 : sslsock->s.is_blocked;
break;
case SSL_ERROR_SYSCALL:
if (ERR_peek_error() == 0) {
if (nr_bytes == 0) {
if (!is_http_stream_talking_to_iis(stream TSRMLS_CC) && ERR_get_error() != 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"SSL: fatal protocol error");
}
SSL_set_shutdown(sslsock->ssl_handle, SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
stream->eof = 1;
retry = 0;
} else {
char *estr = php_socket_strerror(php_socket_errno(), NULL, 0);

php_error_docref(NULL TSRMLS_CC, E_WARNING,
"SSL: %s", estr);

efree(estr);
retry = 0;
}
break;
}


/* fall through */
default:
/* some other error */
ecode = ERR_get_error();

switch (ERR_GET_REASON(ecode)) {
case SSL_R_NO_SHARED_CIPHER:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSL_R_NO_SHARED_CIPHER: no suitable shared cipher could be used. This could be because the server is missing an SSL certificate (local_cert context option)");
retry = 0;
break;

default:
do {
/* NULL is automatically added */
ERR_error_string_n(ecode, esbuf, sizeof(esbuf));
if (ebuf.c) {
smart_str_appendc(&ebuf, '\n');
}
smart_str_appends(&ebuf, esbuf);
} while ((ecode = ERR_get_error()) != 0);

smart_str_0(&ebuf);

php_error_docref(NULL TSRMLS_CC, E_WARNING,
"SSL operation failed with code %d. %s%s",
err,
ebuf.c ? "OpenSSL Error messages:\n" : "",
ebuf.c ? ebuf.c : "");
if (ebuf.c) {
smart_str_free(&ebuf);
}
}

retry = 0;
errno = 0;
}
return retry;
}


static size_t php_openssl_sockop_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC)
{
php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract;
int didwrite;

if (sslsock->ssl_active) {
int retry = 1;

do {
didwrite = SSL_write(sslsock->ssl_handle, buf, count);

if (didwrite <= 0) {
retry = handle_ssl_error(stream, didwrite, 0 TSRMLS_CC);
} else {
break;
}
} while(retry);

if (didwrite > 0) {
php_stream_notify_progress_increment(stream->context, didwrite, 0);
}
} else {
didwrite = php_stream_socket_ops.write(stream, buf, count TSRMLS_CC);
}

if (didwrite < 0) {
didwrite = 0;
}

return didwrite;
}

static size_t php_openssl_sockop_read(php_stream *stream, char *buf, size_t count TSRMLS_DC)
{
php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract;
int nr_bytes = 0;

if (sslsock->ssl_active) {
int retry = 1;

do {
nr_bytes = SSL_read(sslsock->ssl_handle, buf, count);

if (nr_bytes <= 0) {
retry = handle_ssl_error(stream, nr_bytes, 0 TSRMLS_CC);
stream->eof = (retry == 0 && errno != EAGAIN && !SSL_pending(sslsock->ssl_handle));

} else {
/* we got the data */
break;
}
} while (retry);

if (nr_bytes > 0) {
php_stream_notify_progress_increment(stream->context, nr_bytes, 0);
}
}
else
{
nr_bytes = php_stream_socket_ops.read(stream, buf, count TSRMLS_CC);
}

if (nr_bytes < 0) {
nr_bytes = 0;
}

return nr_bytes;
}


static int php_openssl_sockop_close(php_stream *stream, int close_handle TSRMLS_DC)
{
php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract;
#ifdef PHP_WIN32
int n;
#endif
if (close_handle) {
if (sslsock->ssl_active) {
SSL_shutdown(sslsock->ssl_handle);
sslsock->ssl_active = 0;
}
if (sslsock->ssl_handle) {
SSL_free(sslsock->ssl_handle);
sslsock->ssl_handle = NULL;
}
if (sslsock->ctx) {
SSL_CTX_free(sslsock->ctx);
sslsock->ctx = NULL;
}
#ifdef PHP_WIN32
if (sslsock->s.socket == -1)
sslsock->s.socket = SOCK_ERR;
#endif
if (sslsock->s.socket != SOCK_ERR) {
#ifdef PHP_WIN32
/* prevent more data from coming in */
shutdown(sslsock->s.socket, SHUT_RD);

/* try to make sure that the OS sends all data before we close the connection.
* Essentially, we are waiting for the socket to become writeable, which means
* that all pending data has been sent.
* We use a small timeout which should encourage the OS to send the data,
* but at the same time avoid hanging indefintely.
* */
do {
n = php_pollfd_for_ms(sslsock->s.socket, POLLOUT, 500);
} while (n == -1 && php_socket_errno() == EINTR);
#endif
closesocket(sslsock->s.socket);
sslsock->s.socket = SOCK_ERR;
}
}

if (sslsock->sni) {
pefree(sslsock->sni, php_stream_is_persistent(stream));
}
pefree(sslsock, php_stream_is_persistent(stream));

return 0;
}

static int php_openssl_sockop_flush(php_stream *stream TSRMLS_DC)
{
return php_stream_socket_ops.flush(stream TSRMLS_CC);
}

static int php_openssl_sockop_stat(php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC)
{
return php_stream_socket_ops.stat(stream, ssb TSRMLS_CC);
}


static inline int php_openssl_setup_crypto(php_stream *stream,
php_openssl_netstream_data_t *sslsock,
php_stream_xport_crypto_param *cparam
TSRMLS_DC)
{
SSL_METHOD *method;

if (sslsock->ssl_handle) {
if (sslsock->s.is_blocked) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSL/TLS already set-up for this stream");
return -1;
} else {
return 0;
}
}

/* need to do slightly different things, based on client/server method,
* so lets remember which method was selected */

switch (cparam->inputs.method) {
case STREAM_CRYPTO_METHOD_SSLv23_CLIENT:
sslsock->is_client = 1;
method = SSLv23_client_method();
break;
case STREAM_CRYPTO_METHOD_SSLv2_CLIENT:
#ifdef OPENSSL_NO_SSL2
php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSLv2 support is not compiled into the OpenSSL library PHP is linked against");
return -1;
#else
sslsock->is_client = 1;
method = SSLv2_client_method();
break;
#endif
case STREAM_CRYPTO_METHOD_SSLv3_CLIENT:
sslsock->is_client = 1;
method = SSLv3_client_method();
break;
case STREAM_CRYPTO_METHOD_TLS_CLIENT:
sslsock->is_client = 1;
method = TLSv1_client_method();
break;
case STREAM_CRYPTO_METHOD_SSLv23_SERVER:
sslsock->is_client = 0;
method = SSLv23_server_method();
break;
case STREAM_CRYPTO_METHOD_SSLv3_SERVER:
sslsock->is_client = 0;
method = SSLv3_server_method();
break;
case STREAM_CRYPTO_METHOD_SSLv2_SERVER:
#ifdef OPENSSL_NO_SSL2
php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSLv2 support is not compiled into the OpenSSL library PHP is linked against");
return -1;
#else
sslsock->is_client = 0;
method = SSLv2_server_method();
break;
#endif
case STREAM_CRYPTO_METHOD_TLS_SERVER:
sslsock->is_client = 0;
method = TLSv1_server_method();
break;
default:
return -1;

}

sslsock->ctx = SSL_CTX_new(method);
if (sslsock->ctx == NULL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "failed to create an SSL context");
return -1;
}

SSL_CTX_set_options(sslsock->ctx, SSL_OP_ALL);

#if OPENSSL_VERSION_NUMBER >= 0x0090806fL
{
zval **val;

if (stream->context && SUCCESS == php_stream_context_get_option(
stream->context, "ssl", "no_ticket", &val) &&
zval_is_true(*val)) {
SSL_CTX_set_options(sslsock->ctx, SSL_OP_NO_TICKET);
}
}
#endif

sslsock->ssl_handle = php_SSL_new_from_context(sslsock->ctx, stream TSRMLS_CC);
if (sslsock->ssl_handle == NULL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "failed to create an SSL handle");
SSL_CTX_free(sslsock->ctx);
sslsock->ctx = NULL;
return -1;
}

if (!SSL_set_fd(sslsock->ssl_handle, sslsock->s.socket)) {
handle_ssl_error(stream, 0, 1 TSRMLS_CC);
}

if (cparam->inputs.session) {
if (cparam->inputs.session->ops != &php_openssl_socket_ops) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "supplied session stream must be an SSL enabled stream");
} else {
SSL_copy_session_id(sslsock->ssl_handle, ((php_openssl_netstream_data_t*)cparam->inputs.session->abstract)->ssl_handle);
}
}
return 0;
}

static inline int php_openssl_enable_crypto(php_stream *stream,
php_openssl_netstream_data_t *sslsock,
php_stream_xport_crypto_param *cparam
TSRMLS_DC)
{
int n, retry = 1;

if (cparam->inputs.activate && !sslsock->ssl_active) {
struct timeval start_time,
*timeout;
int blocked = sslsock->s.is_blocked,
has_timeout = 0;

#if OPENSSL_VERSION_NUMBER >= 0x0090806fL && !defined(OPENSSL_NO_TLSEXT)
if (sslsock->is_client && sslsock->sni) {
SSL_set_tlsext_host_name(sslsock->ssl_handle, sslsock->sni);
}
#endif

if (!sslsock->state_set) {
if (sslsock->is_client) {
SSL_set_connect_state(sslsock->ssl_handle);
} else {
SSL_set_accept_state(sslsock->ssl_handle);
}
sslsock->state_set = 1;
}

if (SUCCESS == php_set_sock_blocking(sslsock->s.socket, 0 TSRMLS_CC)) {
sslsock->s.is_blocked = 0;
}

timeout = sslsock->is_client ? &sslsock->connect_timeout : &sslsock->s.timeout;
has_timeout = !sslsock->s.is_blocked && (timeout->tv_sec || timeout->tv_usec);
/* gettimeofday is not monotonic; using it here is not strictly correct */
if (has_timeout) {
gettimeofday(&start_time, NULL);
}

do {
struct timeval cur_time,
elapsed_time;

if (sslsock->is_client) {
n = SSL_connect(sslsock->ssl_handle);
} else {
n = SSL_accept(sslsock->ssl_handle);
}

if (has_timeout) {
gettimeofday(&cur_time, NULL);
elapsed_time.tv_sec = cur_time.tv_sec - start_time.tv_sec;
elapsed_time.tv_usec = cur_time.tv_usec - start_time.tv_usec;
if (cur_time.tv_usec < start_time.tv_usec) {
elapsed_time.tv_sec -= 1L;
elapsed_time.tv_usec += 1000000L;
}

if (elapsed_time.tv_sec > timeout->tv_sec ||
(elapsed_time.tv_sec == timeout->tv_sec &&
elapsed_time.tv_usec > timeout->tv_usec)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSL: crypto enabling timeout");
return -1;
}
}

if (n <= 0) {
/* in case of SSL_ERROR_WANT_READ/WRITE, do not retry in non-blocking mode */
retry = handle_ssl_error(stream, n, blocked TSRMLS_CC);
if (retry) {
/* wait until something interesting happens in the socket. It may be a
* timeout. Also consider the unlikely of possibility of a write block */
int err = SSL_get_error(sslsock->ssl_handle, n);
struct timeval left_time;

if (has_timeout) {
left_time.tv_sec = timeout->tv_sec - elapsed_time.tv_sec;
left_time.tv_usec = timeout->tv_usec - elapsed_time.tv_usec;
if (timeout->tv_usec < elapsed_time.tv_usec) {
left_time.tv_sec -= 1L;
left_time.tv_usec += 1000000L;
}
}
php_pollfd_for(sslsock->s.socket, (err == SSL_ERROR_WANT_READ) ?
(POLLIN|POLLPRI) : POLLOUT, has_timeout ? &left_time : NULL);
}
} else {
retry = 0;
}
} while (retry);

if (sslsock->s.is_blocked != blocked && SUCCESS == php_set_sock_blocking(sslsock->s.socket, blocked TSRMLS_CC)) {
sslsock->s.is_blocked = blocked;
}

if (n == 1) {
X509 *peer_cert;

peer_cert = SSL_get_peer_certificate(sslsock->ssl_handle);

if (FAILURE == php_openssl_apply_verification_policy(sslsock->ssl_handle, peer_cert, stream TSRMLS_CC)) {
SSL_shutdown(sslsock->ssl_handle);
n = -1;
} else {
sslsock->ssl_active = 1;

/* allow the script to capture the peer cert
* and/or the certificate chain */
if (stream->context) {
zval **val, *zcert;

if (SUCCESS == php_stream_context_get_option(
stream->context, "ssl",
"capture_peer_cert", &val) &&
zval_is_true(*val)) {
MAKE_STD_ZVAL(zcert);
ZVAL_RESOURCE(zcert, zend_list_insert(peer_cert,
php_openssl_get_x509_list_id() TSRMLS_CC));
php_stream_context_set_option(stream->context,
"ssl", "peer_certificate",
zcert);
peer_cert = NULL;
FREE_ZVAL(zcert);
}

if (SUCCESS == php_stream_context_get_option(
stream->context, "ssl",
"capture_peer_cert_chain", &val) &&
zval_is_true(*val)) {
zval *arr;
STACK_OF(X509) *chain;

MAKE_STD_ZVAL(arr);
chain = SSL_get_peer_cert_chain(
sslsock->ssl_handle);

if (chain && sk_X509_num(chain) > 0) {
int i;
array_init(arr);

for (i = 0; i < sk_X509_num(chain); i++) {
X509 *mycert = X509_dup(
sk_X509_value(chain, i));
MAKE_STD_ZVAL(zcert);
ZVAL_RESOURCE(zcert,
zend_list_insert(mycert,
php_openssl_get_x509_list_id() TSRMLS_CC));
add_next_index_zval(arr, zcert);
}

} else {
ZVAL_NULL(arr);
}

php_stream_context_set_option(stream->context,
"ssl", "peer_certificate_chain",
arr);
zval_dtor(arr);
efree(arr);
}
}
}

if (peer_cert) {
X509_free(peer_cert);
}
} else {
n = errno == EAGAIN ? 0 : -1;
}

return n;

} else if (!cparam->inputs.activate && sslsock->ssl_active) {
/* deactivate - common for server/client */
SSL_shutdown(sslsock->ssl_handle);
sslsock->ssl_active = 0;
}
return -1;
}

static inline int php_openssl_tcp_sockop_accept(php_stream *stream, php_openssl_netstream_data_t *sock,
php_stream_xport_param *xparam STREAMS_DC TSRMLS_DC)
{
int clisock;

xparam->outputs.client = NULL;

clisock = php_network_accept_incoming(sock->s.socket,
xparam->want_textaddr ? &xparam->outputs.textaddr : NULL,
xparam->want_textaddr ? &xparam->outputs.textaddrlen : NULL,
xparam->want_addr ? &xparam->outputs.addr : NULL,
xparam->want_addr ? &xparam->outputs.addrlen : NULL,
xparam->inputs.timeout,
xparam->want_errortext ? &xparam->outputs.error_text : NULL,
&xparam->outputs.error_code
TSRMLS_CC);

if (clisock >= 0) {
php_openssl_netstream_data_t *clisockdata;

clisockdata = emalloc(sizeof(*clisockdata));

if (clisockdata == NULL) {
closesocket(clisock);
/* technically a fatal error */
} else {
/* copy underlying tcp fields */
memset(clisockdata, 0, sizeof(*clisockdata));
memcpy(clisockdata, sock, sizeof(clisockdata->s));

clisockdata->s.socket = clisock;

xparam->outputs.client = php_stream_alloc_rel(stream->ops, clisockdata, NULL, "r+");
if (xparam->outputs.client) {
xparam->outputs.client->context = stream->context;
if (stream->context) {
zend_list_addref(stream->context->rsrc_id);
}
}
}

if (xparam->outputs.client && sock->enable_on_connect) {
/* apply crypto */
switch (sock->method) {
case STREAM_CRYPTO_METHOD_SSLv23_CLIENT:
sock->method = STREAM_CRYPTO_METHOD_SSLv23_SERVER;
break;
case STREAM_CRYPTO_METHOD_SSLv2_CLIENT:
sock->method = STREAM_CRYPTO_METHOD_SSLv2_SERVER;
break;
case STREAM_CRYPTO_METHOD_SSLv3_CLIENT:
sock->method = STREAM_CRYPTO_METHOD_SSLv3_SERVER;
break;
case STREAM_CRYPTO_METHOD_TLS_CLIENT:
sock->method = STREAM_CRYPTO_METHOD_TLS_SERVER;
break;
default:
break;
}

clisockdata->method = sock->method;

if (php_stream_xport_crypto_setup(xparam->outputs.client, clisockdata->method,
NULL TSRMLS_CC) < 0 || php_stream_xport_crypto_enable(
xparam->outputs.client, 1 TSRMLS_CC) < 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to enable crypto");

php_stream_close(xparam->outputs.client);
xparam->outputs.client = NULL;
xparam->outputs.returncode = -1;
}
}
}

return xparam->outputs.client == NULL ? -1 : 0;
}
static int php_openssl_sockop_set_option(php_stream *stream, int option, int value, void *ptrparam TSRMLS_DC)
{
php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract;
php_stream_xport_crypto_param *cparam = (php_stream_xport_crypto_param *)ptrparam;
php_stream_xport_param *xparam = (php_stream_xport_param *)ptrparam;

switch (option) {
case PHP_STREAM_OPTION_CHECK_LIVENESS:
{
struct timeval tv;
char buf;
int alive = 1;

if (value == -1) {
if (sslsock->s.timeout.tv_sec == -1) {
tv.tv_sec = FG(default_socket_timeout);
tv.tv_usec = 0;
} else {
tv = sslsock->connect_timeout;
}
} else {
tv.tv_sec = value;
tv.tv_usec = 0;
}

if (sslsock->s.socket == -1) {
alive = 0;
} else if (php_pollfd_for(sslsock->s.socket, PHP_POLLREADABLE|POLLPRI, &tv) > 0) {
if (sslsock->ssl_active) {
int n;

do {
n = SSL_peek(sslsock->ssl_handle, &buf, sizeof(buf));
if (n <= 0) {
int err = SSL_get_error(sslsock->ssl_handle, n);

if (err == SSL_ERROR_SYSCALL) {
alive = php_socket_errno() == EAGAIN;
break;
}

if (err == SSL_ERROR_WANT_READ || err == SSL_ERROR_WANT_WRITE) {
/* re-negotiate */
continue;
}

/* any other problem is a fatal error */
alive = 0;
}
/* either peek succeeded or there was an error; we
* have set the alive flag appropriately */
break;
} while (1);
} else if (0 == recv(sslsock->s.socket, &buf, sizeof(buf), MSG_PEEK) && php_socket_errno() != EAGAIN) {
alive = 0;
}
}
return alive ? PHP_STREAM_OPTION_RETURN_OK : PHP_STREAM_OPTION_RETURN_ERR;
}

case PHP_STREAM_OPTION_CRYPTO_API:

switch(cparam->op) {

case STREAM_XPORT_CRYPTO_OP_SETUP:
cparam->outputs.returncode = php_openssl_setup_crypto(stream, sslsock, cparam TSRMLS_CC);
return PHP_STREAM_OPTION_RETURN_OK;
break;
case STREAM_XPORT_CRYPTO_OP_ENABLE:
cparam->outputs.returncode = php_openssl_enable_crypto(stream, sslsock, cparam TSRMLS_CC);
return PHP_STREAM_OPTION_RETURN_OK;
break;
default:
/* fall through */
break;
}

break;

case PHP_STREAM_OPTION_XPORT_API:
switch(xparam->op) {

case STREAM_XPORT_OP_CONNECT:
case STREAM_XPORT_OP_CONNECT_ASYNC:
/* TODO: Async connects need to check the enable_on_connect option when
* we notice that the connect has actually been established */
php_stream_socket_ops.set_option(stream, option, value, ptrparam TSRMLS_CC);

if ((sslsock->enable_on_connect) &&
((xparam->outputs.returncode == 0) ||
(xparam->op == STREAM_XPORT_OP_CONNECT_ASYNC &&
xparam->outputs.returncode == 1 && xparam->outputs.error_code == EINPROGRESS)))
{
if (php_stream_xport_crypto_setup(stream, sslsock->method, NULL TSRMLS_CC) < 0 ||
php_stream_xport_crypto_enable(stream, 1 TSRMLS_CC) < 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to enable crypto");
xparam->outputs.returncode = -1;
}
}
return PHP_STREAM_OPTION_RETURN_OK;

case STREAM_XPORT_OP_ACCEPT:
/* we need to copy the additional fields that the underlying tcp transport
* doesn't know about */
xparam->outputs.returncode = php_openssl_tcp_sockop_accept(stream, sslsock, xparam STREAMS_CC TSRMLS_CC);


return PHP_STREAM_OPTION_RETURN_OK;

default:
/* fall through */
break;
}
}

return php_stream_socket_ops.set_option(stream, option, value, ptrparam TSRMLS_CC);
}

static int php_openssl_sockop_cast(php_stream *stream, int castas, void **ret TSRMLS_DC)
{
php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract;

switch(castas) {
case PHP_STREAM_AS_STDIO:
if (sslsock->ssl_active) {
return FAILURE;
}
if (ret) {
*ret = fdopen(sslsock->s.socket, stream->mode);
if (*ret) {
return SUCCESS;
}
return FAILURE;
}
return SUCCESS;

case PHP_STREAM_AS_FD_FOR_SELECT:
if (ret) {
*(int *)ret = sslsock->s.socket;
}
return SUCCESS;

case PHP_STREAM_AS_FD:
case PHP_STREAM_AS_SOCKETD:
if (sslsock->ssl_active) {
return FAILURE;
}
if (ret) {
*(int *)ret = sslsock->s.socket;
}
return SUCCESS;
default:
return FAILURE;
}
}

php_stream_ops php_openssl_socket_ops = {
php_openssl_sockop_write, php_openssl_sockop_read,
php_openssl_sockop_close, php_openssl_sockop_flush,
"tcp_socket/ssl",
NULL, /* seek */
php_openssl_sockop_cast,
php_openssl_sockop_stat,
php_openssl_sockop_set_option,
};

static char * get_sni(php_stream_context *ctx, char *resourcename, long resourcenamelen, int is_persistent TSRMLS_DC) {

php_url *url;

if (ctx) {
zval **val = NULL;

if (php_stream_context_get_option(ctx, "ssl", "SNI_enabled", &val) == SUCCESS && !zend_is_true(*val)) {
return NULL;
}
if (php_stream_context_get_option(ctx, "ssl", "SNI_server_name", &val) == SUCCESS) {
convert_to_string_ex(val);
return pestrdup(Z_STRVAL_PP(val), is_persistent);
}
}

if (!resourcename) {
return NULL;
}

url = php_url_parse_ex(resourcename, resourcenamelen);
if (!url) {
return NULL;
}

if (url->host) {
const char * host = url->host;
char * sni = NULL;
size_t len = strlen(host);

/* skip trailing dots */
while (len && host[len-1] == '.') {
--len;
}

if (len) {
sni = pestrndup(host, len, is_persistent);
}

php_url_free(url);
return sni;
}

php_url_free(url);
return NULL;
}

php_stream *php_openssl_ssl_socket_factory(const char *proto, long protolen,
char *resourcename, long resourcenamelen,
const char *persistent_id, int options, int flags,
struct timeval *timeout,
php_stream_context *context STREAMS_DC TSRMLS_DC)
{
php_stream *stream = NULL;
php_openssl_netstream_data_t *sslsock = NULL;

sslsock = pemalloc(sizeof(php_openssl_netstream_data_t), persistent_id ? 1 : 0);
memset(sslsock, 0, sizeof(*sslsock));

sslsock->s.is_blocked = 1;
/* this timeout is used by standard stream funcs, therefor it should use the default value */
sslsock->s.timeout.tv_sec = FG(default_socket_timeout);
sslsock->s.timeout.tv_usec = 0;

/* use separate timeout for our private funcs */
sslsock->connect_timeout.tv_sec = timeout->tv_sec;
sslsock->connect_timeout.tv_usec = timeout->tv_usec;

/* we don't know the socket until we have determined if we are binding or
* connecting */
sslsock->s.socket = -1;

/* Initialize context as NULL */
sslsock->ctx = NULL;

stream = php_stream_alloc_rel(&php_openssl_socket_ops, sslsock, persistent_id, "r+");

if (stream == NULL) {
pefree(sslsock, persistent_id ? 1 : 0);
return NULL;
}

sslsock->sni = get_sni(context, resourcename, resourcenamelen, !!persistent_id TSRMLS_CC);

if (strncmp(proto, "ssl", protolen) == 0) {
sslsock->enable_on_connect = 1;
sslsock->method = STREAM_CRYPTO_METHOD_SSLv23_CLIENT;
} else if (strncmp(proto, "sslv2", protolen) == 0) {
#ifdef OPENSSL_NO_SSL2
php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSLv2 support is not compiled into the OpenSSL library PHP is linked against");
return NULL;
#else
sslsock->enable_on_connect = 1;
sslsock->method = STREAM_CRYPTO_METHOD_SSLv2_CLIENT;
#endif
} else if (strncmp(proto, "sslv3", protolen) == 0) {
sslsock->enable_on_connect = 1;
sslsock->method = STREAM_CRYPTO_METHOD_SSLv3_CLIENT;
} else if (strncmp(proto, "tls", protolen) == 0) {
sslsock->enable_on_connect = 1;
sslsock->method = STREAM_CRYPTO_METHOD_TLS_CLIENT;
}

return stream;
}



/*
* 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
*/
Something went wrong with that request. Please try again.