1: /*
2: +----------------------------------------------------------------------+
3: | PHP Version 5 |
4: +----------------------------------------------------------------------+
5: | Copyright (c) 1997-2014 The PHP Group |
6: +----------------------------------------------------------------------+
7: | This source file is subject to version 3.01 of the PHP license, |
8: | that is bundled with this package in the file LICENSE, and is |
9: | available through the world-wide-web at the following url: |
10: | http://www.php.net/license/3_01.txt |
11: | If you did not receive a copy of the PHP license and are unable to |
12: | obtain it through the world-wide-web, please send a note to |
13: | license@php.net so we can mail you a copy immediately. |
14: +----------------------------------------------------------------------+
15: | Authors: Sascha Schumann <sascha@schumann.cx> |
16: | Andrei Zmievski <andrei@php.net> |
17: +----------------------------------------------------------------------+
18: */
19:
20: /* $Id: session.c,v 1.1.1.5 2014/06/15 20:03:55 misho Exp $ */
21:
22: #ifdef HAVE_CONFIG_H
23: #include "config.h"
24: #endif
25:
26: #include "php.h"
27:
28: #ifdef PHP_WIN32
29: # include "win32/winutil.h"
30: # include "win32/time.h"
31: #else
32: # include <sys/time.h>
33: #endif
34:
35: #include <sys/stat.h>
36: #include <fcntl.h>
37:
38: #include "php_ini.h"
39: #include "SAPI.h"
40: #include "rfc1867.h"
41: #include "php_variables.h"
42: #include "php_session.h"
43: #include "ext/standard/md5.h"
44: #include "ext/standard/sha1.h"
45: #include "ext/standard/php_var.h"
46: #include "ext/date/php_date.h"
47: #include "ext/standard/php_lcg.h"
48: #include "ext/standard/url_scanner_ex.h"
49: #include "ext/standard/php_rand.h" /* for RAND_MAX */
50: #include "ext/standard/info.h"
51: #include "ext/standard/php_smart_str.h"
52: #include "ext/standard/url.h"
53: #include "ext/standard/basic_functions.h"
54:
55: #include "mod_files.h"
56: #include "mod_user.h"
57:
58: #ifdef HAVE_LIBMM
59: #include "mod_mm.h"
60: #endif
61:
62: PHPAPI ZEND_DECLARE_MODULE_GLOBALS(ps)
63:
64: static int php_session_rfc1867_callback(unsigned int event, void *event_data, void **extra TSRMLS_DC);
65: static int (*php_session_rfc1867_orig_callback)(unsigned int event, void *event_data, void **extra TSRMLS_DC);
66:
67: /* SessionHandler class */
68: zend_class_entry *php_session_class_entry;
69:
70: /* SessionHandlerInterface */
71: zend_class_entry *php_session_iface_entry;
72:
73: /* ***********
74: * Helpers *
75: *********** */
76:
77: #define IF_SESSION_VARS() \
78: if (PS(http_session_vars) && PS(http_session_vars)->type == IS_ARRAY)
79:
80: #define SESSION_CHECK_ACTIVE_STATE \
81: if (PS(session_status) == php_session_active) { \
82: php_error_docref(NULL TSRMLS_CC, E_WARNING, "A session is active. You cannot change the session module's ini settings at this time"); \
83: return FAILURE; \
84: }
85:
86: /* Dispatched by RINIT and by php_session_destroy */
87: static inline void php_rinit_session_globals(TSRMLS_D) /* {{{ */
88: {
89: PS(id) = NULL;
90: PS(session_status) = php_session_none;
91: PS(mod_data) = NULL;
92: PS(mod_user_is_open) = 0;
93: /* Do NOT init PS(mod_user_names) here! */
94: PS(http_session_vars) = NULL;
95: }
96: /* }}} */
97:
98: /* Dispatched by RSHUTDOWN and by php_session_destroy */
99: static inline void php_rshutdown_session_globals(TSRMLS_D) /* {{{ */
100: {
101: if (PS(http_session_vars)) {
102: zval_ptr_dtor(&PS(http_session_vars));
103: PS(http_session_vars) = NULL;
104: }
105: /* Do NOT destroy PS(mod_user_names) here! */
106: if (PS(mod_data) || PS(mod_user_implemented)) {
107: zend_try {
108: PS(mod)->s_close(&PS(mod_data) TSRMLS_CC);
109: } zend_end_try();
110: }
111: if (PS(id)) {
112: efree(PS(id));
113: }
114: }
115: /* }}} */
116:
117: static int php_session_destroy(TSRMLS_D) /* {{{ */
118: {
119: int retval = SUCCESS;
120:
121: if (PS(session_status) != php_session_active) {
122: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Trying to destroy uninitialized session");
123: return FAILURE;
124: }
125:
126: if (PS(mod)->s_destroy(&PS(mod_data), PS(id) TSRMLS_CC) == FAILURE) {
127: retval = FAILURE;
128: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Session object destruction failed");
129: }
130:
131: php_rshutdown_session_globals(TSRMLS_C);
132: php_rinit_session_globals(TSRMLS_C);
133:
134: return retval;
135: }
136: /* }}} */
137:
138: PHPAPI void php_add_session_var(char *name, size_t namelen TSRMLS_DC) /* {{{ */
139: {
140: zval **sym_track = NULL;
141:
142: IF_SESSION_VARS() {
143: zend_hash_find(Z_ARRVAL_P(PS(http_session_vars)), name, namelen + 1, (void *) &sym_track);
144: } else {
145: return;
146: }
147:
148: if (sym_track == NULL) {
149: zval *empty_var;
150:
151: ALLOC_INIT_ZVAL(empty_var);
152: ZEND_SET_SYMBOL_WITH_LENGTH(Z_ARRVAL_P(PS(http_session_vars)), name, namelen+1, empty_var, 1, 0);
153: }
154: }
155: /* }}} */
156:
157: PHPAPI void php_set_session_var(char *name, size_t namelen, zval *state_val, php_unserialize_data_t *var_hash TSRMLS_DC) /* {{{ */
158: {
159: IF_SESSION_VARS() {
160: zend_set_hash_symbol(state_val, name, namelen, PZVAL_IS_REF(state_val), 1, Z_ARRVAL_P(PS(http_session_vars)));
161: }
162: }
163: /* }}} */
164:
165: PHPAPI int php_get_session_var(char *name, size_t namelen, zval ***state_var TSRMLS_DC) /* {{{ */
166: {
167: int ret = FAILURE;
168:
169: IF_SESSION_VARS() {
170: ret = zend_hash_find(Z_ARRVAL_P(PS(http_session_vars)), name, namelen + 1, (void **) state_var);
171: }
172: return ret;
173: }
174: /* }}} */
175:
176: static void php_session_track_init(TSRMLS_D) /* {{{ */
177: {
178: zval *session_vars = NULL;
179:
180: /* Unconditionally destroy existing array -- possible dirty data */
181: zend_delete_global_variable("_SESSION", sizeof("_SESSION")-1 TSRMLS_CC);
182:
183: if (PS(http_session_vars)) {
184: zval_ptr_dtor(&PS(http_session_vars));
185: }
186:
187: MAKE_STD_ZVAL(session_vars);
188: array_init(session_vars);
189: PS(http_session_vars) = session_vars;
190:
191: ZEND_SET_GLOBAL_VAR_WITH_LENGTH("_SESSION", sizeof("_SESSION"), PS(http_session_vars), 2, 1);
192: }
193: /* }}} */
194:
195: static char *php_session_encode(int *newlen TSRMLS_DC) /* {{{ */
196: {
197: char *ret = NULL;
198:
199: IF_SESSION_VARS() {
200: if (!PS(serializer)) {
201: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown session.serialize_handler. Failed to encode session object");
202: ret = NULL;
203: } else if (PS(serializer)->encode(&ret, newlen TSRMLS_CC) == FAILURE) {
204: ret = NULL;
205: }
206: } else {
207: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot encode non-existent session");
208: }
209: return ret;
210: }
211: /* }}} */
212:
213: static void php_session_decode(const char *val, int vallen TSRMLS_DC) /* {{{ */
214: {
215: if (!PS(serializer)) {
216: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown session.serialize_handler. Failed to decode session object");
217: return;
218: }
219: if (PS(serializer)->decode(val, vallen TSRMLS_CC) == FAILURE) {
220: php_session_destroy(TSRMLS_C);
221: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to decode session object. Session has been destroyed");
222: }
223: }
224: /* }}} */
225:
226: /*
227: * Note that we cannot use the BASE64 alphabet here, because
228: * it contains "/" and "+": both are unacceptable for simple inclusion
229: * into URLs.
230: */
231:
232: static char hexconvtab[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ,-";
233:
234: enum {
235: PS_HASH_FUNC_MD5,
236: PS_HASH_FUNC_SHA1,
237: PS_HASH_FUNC_OTHER
238: };
239:
240: /* returns a pointer to the byte after the last valid character in out */
241: static char *bin_to_readable(char *in, size_t inlen, char *out, char nbits) /* {{{ */
242: {
243: unsigned char *p, *q;
244: unsigned short w;
245: int mask;
246: int have;
247:
248: p = (unsigned char *) in;
249: q = (unsigned char *)in + inlen;
250:
251: w = 0;
252: have = 0;
253: mask = (1 << nbits) - 1;
254:
255: while (1) {
256: if (have < nbits) {
257: if (p < q) {
258: w |= *p++ << have;
259: have += 8;
260: } else {
261: /* consumed everything? */
262: if (have == 0) break;
263: /* No? We need a final round */
264: have = nbits;
265: }
266: }
267:
268: /* consume nbits */
269: *out++ = hexconvtab[w & mask];
270: w >>= nbits;
271: have -= nbits;
272: }
273:
274: *out = '\0';
275: return out;
276: }
277: /* }}} */
278:
279: PHPAPI char *php_session_create_id(PS_CREATE_SID_ARGS) /* {{{ */
280: {
281: PHP_MD5_CTX md5_context;
282: PHP_SHA1_CTX sha1_context;
283: #if defined(HAVE_HASH_EXT) && !defined(COMPILE_DL_HASH)
284: void *hash_context = NULL;
285: #endif
286: unsigned char *digest;
287: int digest_len;
288: int j;
289: char *buf, *outid;
290: struct timeval tv;
291: zval **array;
292: zval **token;
293: char *remote_addr = NULL;
294:
295: gettimeofday(&tv, NULL);
296:
297: if (zend_hash_find(&EG(symbol_table), "_SERVER", sizeof("_SERVER"), (void **) &array) == SUCCESS &&
298: Z_TYPE_PP(array) == IS_ARRAY &&
299: zend_hash_find(Z_ARRVAL_PP(array), "REMOTE_ADDR", sizeof("REMOTE_ADDR"), (void **) &token) == SUCCESS
300: ) {
301: remote_addr = Z_STRVAL_PP(token);
302: }
303:
304: /* maximum 15+19+19+10 bytes */
305: spprintf(&buf, 0, "%.15s%ld%ld%0.8F", remote_addr ? remote_addr : "", tv.tv_sec, (long int)tv.tv_usec, php_combined_lcg(TSRMLS_C) * 10);
306:
307: switch (PS(hash_func)) {
308: case PS_HASH_FUNC_MD5:
309: PHP_MD5Init(&md5_context);
310: PHP_MD5Update(&md5_context, (unsigned char *) buf, strlen(buf));
311: digest_len = 16;
312: break;
313: case PS_HASH_FUNC_SHA1:
314: PHP_SHA1Init(&sha1_context);
315: PHP_SHA1Update(&sha1_context, (unsigned char *) buf, strlen(buf));
316: digest_len = 20;
317: break;
318: #if defined(HAVE_HASH_EXT) && !defined(COMPILE_DL_HASH)
319: case PS_HASH_FUNC_OTHER:
320: if (!PS(hash_ops)) {
321: php_error_docref(NULL TSRMLS_CC, E_ERROR, "Invalid session hash function");
322: efree(buf);
323: return NULL;
324: }
325:
326: hash_context = emalloc(PS(hash_ops)->context_size);
327: PS(hash_ops)->hash_init(hash_context);
328: PS(hash_ops)->hash_update(hash_context, (unsigned char *) buf, strlen(buf));
329: digest_len = PS(hash_ops)->digest_size;
330: break;
331: #endif /* HAVE_HASH_EXT */
332: default:
333: php_error_docref(NULL TSRMLS_CC, E_ERROR, "Invalid session hash function");
334: efree(buf);
335: return NULL;
336: }
337: efree(buf);
338:
339: if (PS(entropy_length) > 0) {
340: #ifdef PHP_WIN32
341: unsigned char rbuf[2048];
342: size_t toread = PS(entropy_length);
343:
344: if (php_win32_get_random_bytes(rbuf, MIN(toread, sizeof(rbuf))) == SUCCESS){
345:
346: switch (PS(hash_func)) {
347: case PS_HASH_FUNC_MD5:
348: PHP_MD5Update(&md5_context, rbuf, toread);
349: break;
350: case PS_HASH_FUNC_SHA1:
351: PHP_SHA1Update(&sha1_context, rbuf, toread);
352: break;
353: # if defined(HAVE_HASH_EXT) && !defined(COMPILE_DL_HASH)
354: case PS_HASH_FUNC_OTHER:
355: PS(hash_ops)->hash_update(hash_context, rbuf, toread);
356: break;
357: # endif /* HAVE_HASH_EXT */
358: }
359: }
360: #else
361: int fd;
362:
363: fd = VCWD_OPEN(PS(entropy_file), O_RDONLY);
364: if (fd >= 0) {
365: unsigned char rbuf[2048];
366: int n;
367: int to_read = PS(entropy_length);
368:
369: while (to_read > 0) {
370: n = read(fd, rbuf, MIN(to_read, sizeof(rbuf)));
371: if (n <= 0) break;
372:
373: switch (PS(hash_func)) {
374: case PS_HASH_FUNC_MD5:
375: PHP_MD5Update(&md5_context, rbuf, n);
376: break;
377: case PS_HASH_FUNC_SHA1:
378: PHP_SHA1Update(&sha1_context, rbuf, n);
379: break;
380: #if defined(HAVE_HASH_EXT) && !defined(COMPILE_DL_HASH)
381: case PS_HASH_FUNC_OTHER:
382: PS(hash_ops)->hash_update(hash_context, rbuf, n);
383: break;
384: #endif /* HAVE_HASH_EXT */
385: }
386: to_read -= n;
387: }
388: close(fd);
389: }
390: #endif
391: }
392:
393: digest = emalloc(digest_len + 1);
394: switch (PS(hash_func)) {
395: case PS_HASH_FUNC_MD5:
396: PHP_MD5Final(digest, &md5_context);
397: break;
398: case PS_HASH_FUNC_SHA1:
399: PHP_SHA1Final(digest, &sha1_context);
400: break;
401: #if defined(HAVE_HASH_EXT) && !defined(COMPILE_DL_HASH)
402: case PS_HASH_FUNC_OTHER:
403: PS(hash_ops)->hash_final(digest, hash_context);
404: efree(hash_context);
405: break;
406: #endif /* HAVE_HASH_EXT */
407: }
408:
409: if (PS(hash_bits_per_character) < 4
410: || PS(hash_bits_per_character) > 6) {
411: PS(hash_bits_per_character) = 4;
412:
413: php_error_docref(NULL TSRMLS_CC, E_WARNING, "The ini setting hash_bits_per_character is out of range (should be 4, 5, or 6) - using 4 for now");
414: }
415:
416: outid = emalloc((size_t)((digest_len + 2) * ((8.0f / PS(hash_bits_per_character)) + 0.5)));
417: j = (int) (bin_to_readable((char *)digest, digest_len, outid, (char)PS(hash_bits_per_character)) - outid);
418: efree(digest);
419:
420: if (newlen) {
421: *newlen = j;
422: }
423:
424: return outid;
425: }
426: /* }}} */
427:
428: static void php_session_initialize(TSRMLS_D) /* {{{ */
429: {
430: char *val;
431: int vallen;
432:
433: /* check session name for invalid characters */
434: if (PS(id) && strpbrk(PS(id), "\r\n\t <>'\"\\")) {
435: efree(PS(id));
436: PS(id) = NULL;
437: }
438:
439: if (!PS(mod)) {
440: php_error_docref(NULL TSRMLS_CC, E_ERROR, "No storage module chosen - failed to initialize session");
441: return;
442: }
443:
444: /* Open session handler first */
445: if (PS(mod)->s_open(&PS(mod_data), PS(save_path), PS(session_name) TSRMLS_CC) == FAILURE) {
446: php_error_docref(NULL TSRMLS_CC, E_ERROR, "Failed to initialize storage module: %s (path: %s)", PS(mod)->s_name, PS(save_path));
447: return;
448: }
449:
450: /* If there is no ID, use session module to create one */
451: if (!PS(id)) {
452: new_session:
453: PS(id) = PS(mod)->s_create_sid(&PS(mod_data), NULL TSRMLS_CC);
454: if (PS(use_cookies)) {
455: PS(send_cookie) = 1;
456: }
457: }
458:
459: /* Read data */
460: /* Question: if you create a SID here, should you also try to read data?
461: * I'm not sure, but while not doing so will remove one session operation
462: * it could prove usefull for those sites which wish to have "default"
463: * session information. */
464: php_session_track_init(TSRMLS_C);
465: PS(invalid_session_id) = 0;
466: if (PS(mod)->s_read(&PS(mod_data), PS(id), &val, &vallen TSRMLS_CC) == SUCCESS) {
467: php_session_decode(val, vallen TSRMLS_CC);
468: efree(val);
469: } else if (PS(invalid_session_id)) { /* address instances where the session read fails due to an invalid id */
470: PS(invalid_session_id) = 0;
471: efree(PS(id));
472: PS(id) = NULL;
473: goto new_session;
474: }
475: }
476: /* }}} */
477:
478: static void php_session_save_current_state(TSRMLS_D) /* {{{ */
479: {
480: int ret = FAILURE;
481:
482: IF_SESSION_VARS() {
483: if (PS(mod_data) || PS(mod_user_implemented)) {
484: char *val;
485: int vallen;
486:
487: val = php_session_encode(&vallen TSRMLS_CC);
488: if (val) {
489: ret = PS(mod)->s_write(&PS(mod_data), PS(id), val, vallen TSRMLS_CC);
490: efree(val);
491: } else {
492: ret = PS(mod)->s_write(&PS(mod_data), PS(id), "", 0 TSRMLS_CC);
493: }
494: }
495:
496: if (ret == FAILURE) {
497: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to write session data (%s). Please "
498: "verify that the current setting of session.save_path "
499: "is correct (%s)",
500: PS(mod)->s_name,
501: PS(save_path));
502: }
503: }
504:
505: if (PS(mod_data) || PS(mod_user_implemented)) {
506: PS(mod)->s_close(&PS(mod_data) TSRMLS_CC);
507: }
508: }
509: /* }}} */
510:
511: /* *************************
512: * INI Settings/Handlers *
513: ************************* */
514:
515: static PHP_INI_MH(OnUpdateSaveHandler) /* {{{ */
516: {
517: ps_module *tmp;
518: SESSION_CHECK_ACTIVE_STATE;
519:
520: tmp = _php_find_ps_module(new_value TSRMLS_CC);
521:
522: if (PG(modules_activated) && !tmp) {
523: int err_type;
524:
525: if (stage == ZEND_INI_STAGE_RUNTIME) {
526: err_type = E_WARNING;
527: } else {
528: err_type = E_ERROR;
529: }
530:
531: /* Do not output error when restoring ini options. */
532: if (stage != ZEND_INI_STAGE_DEACTIVATE) {
533: php_error_docref(NULL TSRMLS_CC, err_type, "Cannot find save handler '%s'", new_value);
534: }
535: return FAILURE;
536: }
537:
538: PS(default_mod) = PS(mod);
539: PS(mod) = tmp;
540:
541: return SUCCESS;
542: }
543: /* }}} */
544:
545: static PHP_INI_MH(OnUpdateSerializer) /* {{{ */
546: {
547: const ps_serializer *tmp;
548: SESSION_CHECK_ACTIVE_STATE;
549:
550: tmp = _php_find_ps_serializer(new_value TSRMLS_CC);
551:
552: if (PG(modules_activated) && !tmp) {
553: int err_type;
554:
555: if (stage == ZEND_INI_STAGE_RUNTIME) {
556: err_type = E_WARNING;
557: } else {
558: err_type = E_ERROR;
559: }
560:
561: /* Do not output error when restoring ini options. */
562: if (stage != ZEND_INI_STAGE_DEACTIVATE) {
563: php_error_docref(NULL TSRMLS_CC, err_type, "Cannot find serialization handler '%s'", new_value);
564: }
565: return FAILURE;
566: }
567: PS(serializer) = tmp;
568:
569: return SUCCESS;
570: }
571: /* }}} */
572:
573: static PHP_INI_MH(OnUpdateTransSid) /* {{{ */
574: {
575: SESSION_CHECK_ACTIVE_STATE;
576:
577: if (!strncasecmp(new_value, "on", sizeof("on"))) {
578: PS(use_trans_sid) = (zend_bool) 1;
579: } else {
580: PS(use_trans_sid) = (zend_bool) atoi(new_value);
581: }
582:
583: return SUCCESS;
584: }
585: /* }}} */
586:
587: static PHP_INI_MH(OnUpdateSaveDir) /* {{{ */
588: {
589: /* Only do the safemode/open_basedir check at runtime */
590: if (stage == PHP_INI_STAGE_RUNTIME || stage == PHP_INI_STAGE_HTACCESS) {
591: char *p;
592:
593: if (memchr(new_value, '\0', new_value_length) != NULL) {
594: return FAILURE;
595: }
596:
597: /* we do not use zend_memrchr() since path can contain ; itself */
598: if ((p = strchr(new_value, ';'))) {
599: char *p2;
600: p++;
601: if ((p2 = strchr(p, ';'))) {
602: p = p2 + 1;
603: }
604: } else {
605: p = new_value;
606: }
607:
608: if (PG(open_basedir) && *p && php_check_open_basedir(p TSRMLS_CC)) {
609: return FAILURE;
610: }
611: }
612:
613: OnUpdateString(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC);
614: return SUCCESS;
615: }
616: /* }}} */
617:
618: static PHP_INI_MH(OnUpdateName) /* {{{ */
619: {
620: /* Numeric session.name won't work at all */
621: if ((!new_value_length || is_numeric_string(new_value, new_value_length, NULL, NULL, 0))) {
622: int err_type;
623:
624: if (stage == ZEND_INI_STAGE_RUNTIME || stage == ZEND_INI_STAGE_ACTIVATE || stage == ZEND_INI_STAGE_STARTUP) {
625: err_type = E_WARNING;
626: } else {
627: err_type = E_ERROR;
628: }
629:
630: /* Do not output error when restoring ini options. */
631: if (stage != ZEND_INI_STAGE_DEACTIVATE) {
632: php_error_docref(NULL TSRMLS_CC, err_type, "session.name cannot be a numeric or empty '%s'", new_value);
633: }
634: return FAILURE;
635: }
636:
637: OnUpdateStringUnempty(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC);
638: return SUCCESS;
639: }
640: /* }}} */
641:
642: static PHP_INI_MH(OnUpdateHashFunc) /* {{{ */
643: {
644: long val;
645: char *endptr = NULL;
646:
647: #if defined(HAVE_HASH_EXT) && !defined(COMPILE_DL_HASH)
648: PS(hash_ops) = NULL;
649: #endif
650:
651: val = strtol(new_value, &endptr, 10);
652: if (endptr && (*endptr == '\0')) {
653: /* Numeric value */
654: PS(hash_func) = val ? 1 : 0;
655:
656: return SUCCESS;
657: }
658:
659: if (new_value_length == (sizeof("md5") - 1) &&
660: strncasecmp(new_value, "md5", sizeof("md5") - 1) == 0) {
661: PS(hash_func) = PS_HASH_FUNC_MD5;
662:
663: return SUCCESS;
664: }
665:
666: if (new_value_length == (sizeof("sha1") - 1) &&
667: strncasecmp(new_value, "sha1", sizeof("sha1") - 1) == 0) {
668: PS(hash_func) = PS_HASH_FUNC_SHA1;
669:
670: return SUCCESS;
671: }
672:
673: #if defined(HAVE_HASH_EXT) && !defined(COMPILE_DL_HASH) /* {{{ */
674: {
675: php_hash_ops *ops = (php_hash_ops*)php_hash_fetch_ops(new_value, new_value_length);
676:
677: if (ops) {
678: PS(hash_func) = PS_HASH_FUNC_OTHER;
679: PS(hash_ops) = ops;
680:
681: return SUCCESS;
682: }
683: }
684: #endif /* HAVE_HASH_EXT }}} */
685:
686: return FAILURE;
687: }
688: /* }}} */
689:
690: static PHP_INI_MH(OnUpdateRfc1867Freq) /* {{{ */
691: {
692: int tmp;
693: tmp = zend_atoi(new_value, new_value_length);
694: if(tmp < 0) {
695: php_error_docref(NULL TSRMLS_CC, E_WARNING, "session.upload_progress.freq must be greater than or equal to zero");
696: return FAILURE;
697: }
698: if(new_value_length > 0 && new_value[new_value_length-1] == '%') {
699: if(tmp > 100) {
700: php_error_docref(NULL TSRMLS_CC, E_WARNING, "session.upload_progress.freq cannot be over 100%%");
701: return FAILURE;
702: }
703: PS(rfc1867_freq) = -tmp;
704: } else {
705: PS(rfc1867_freq) = tmp;
706: }
707: return SUCCESS;
708: } /* }}} */
709:
710: static ZEND_INI_MH(OnUpdateSmartStr) /* {{{ */
711: {
712: smart_str *p;
713: #ifndef ZTS
714: char *base = (char *) mh_arg2;
715: #else
716: char *base;
717:
718: base = (char *) ts_resource(*((int *) mh_arg2));
719: #endif
720:
721: p = (smart_str *) (base+(size_t) mh_arg1);
722:
723: smart_str_sets(p, new_value);
724:
725: return SUCCESS;
726: }
727: /* }}} */
728:
729: /* {{{ PHP_INI
730: */
731: PHP_INI_BEGIN()
732: STD_PHP_INI_ENTRY("session.save_path", "", PHP_INI_ALL, OnUpdateSaveDir,save_path, php_ps_globals, ps_globals)
733: STD_PHP_INI_ENTRY("session.name", "PHPSESSID", PHP_INI_ALL, OnUpdateName, session_name, php_ps_globals, ps_globals)
734: PHP_INI_ENTRY("session.save_handler", "files", PHP_INI_ALL, OnUpdateSaveHandler)
735: STD_PHP_INI_BOOLEAN("session.auto_start", "0", PHP_INI_PERDIR, OnUpdateBool, auto_start, php_ps_globals, ps_globals)
736: STD_PHP_INI_ENTRY("session.gc_probability", "1", PHP_INI_ALL, OnUpdateLong, gc_probability, php_ps_globals, ps_globals)
737: STD_PHP_INI_ENTRY("session.gc_divisor", "100", PHP_INI_ALL, OnUpdateLong, gc_divisor, php_ps_globals, ps_globals)
738: STD_PHP_INI_ENTRY("session.gc_maxlifetime", "1440", PHP_INI_ALL, OnUpdateLong, gc_maxlifetime, php_ps_globals, ps_globals)
739: PHP_INI_ENTRY("session.serialize_handler", "php", PHP_INI_ALL, OnUpdateSerializer)
740: STD_PHP_INI_ENTRY("session.cookie_lifetime", "0", PHP_INI_ALL, OnUpdateLong, cookie_lifetime, php_ps_globals, ps_globals)
741: STD_PHP_INI_ENTRY("session.cookie_path", "/", PHP_INI_ALL, OnUpdateString, cookie_path, php_ps_globals, ps_globals)
742: STD_PHP_INI_ENTRY("session.cookie_domain", "", PHP_INI_ALL, OnUpdateString, cookie_domain, php_ps_globals, ps_globals)
743: STD_PHP_INI_BOOLEAN("session.cookie_secure", "", PHP_INI_ALL, OnUpdateBool, cookie_secure, php_ps_globals, ps_globals)
744: STD_PHP_INI_BOOLEAN("session.cookie_httponly", "", PHP_INI_ALL, OnUpdateBool, cookie_httponly, php_ps_globals, ps_globals)
745: STD_PHP_INI_BOOLEAN("session.use_cookies", "1", PHP_INI_ALL, OnUpdateBool, use_cookies, php_ps_globals, ps_globals)
746: STD_PHP_INI_BOOLEAN("session.use_only_cookies", "1", PHP_INI_ALL, OnUpdateBool, use_only_cookies, php_ps_globals, ps_globals)
747: STD_PHP_INI_ENTRY("session.referer_check", "", PHP_INI_ALL, OnUpdateString, extern_referer_chk, php_ps_globals, ps_globals)
748: #if HAVE_DEV_URANDOM
749: STD_PHP_INI_ENTRY("session.entropy_file", "/dev/urandom", PHP_INI_ALL, OnUpdateString, entropy_file, php_ps_globals, ps_globals)
750: STD_PHP_INI_ENTRY("session.entropy_length", "32", PHP_INI_ALL, OnUpdateLong, entropy_length, php_ps_globals, ps_globals)
751: #elif HAVE_DEV_ARANDOM
752: STD_PHP_INI_ENTRY("session.entropy_file", "/dev/arandom", PHP_INI_ALL, OnUpdateString, entropy_file, php_ps_globals, ps_globals)
753: STD_PHP_INI_ENTRY("session.entropy_length", "32", PHP_INI_ALL, OnUpdateLong, entropy_length, php_ps_globals, ps_globals)
754: #else
755: STD_PHP_INI_ENTRY("session.entropy_file", "", PHP_INI_ALL, OnUpdateString, entropy_file, php_ps_globals, ps_globals)
756: STD_PHP_INI_ENTRY("session.entropy_length", "0", PHP_INI_ALL, OnUpdateLong, entropy_length, php_ps_globals, ps_globals)
757: #endif
758: STD_PHP_INI_ENTRY("session.cache_limiter", "nocache", PHP_INI_ALL, OnUpdateString, cache_limiter, php_ps_globals, ps_globals)
759: STD_PHP_INI_ENTRY("session.cache_expire", "180", PHP_INI_ALL, OnUpdateLong, cache_expire, php_ps_globals, ps_globals)
760: PHP_INI_ENTRY("session.use_trans_sid", "0", PHP_INI_ALL, OnUpdateTransSid)
761: PHP_INI_ENTRY("session.hash_function", "0", PHP_INI_ALL, OnUpdateHashFunc)
762: STD_PHP_INI_ENTRY("session.hash_bits_per_character", "4", PHP_INI_ALL, OnUpdateLong, hash_bits_per_character, php_ps_globals, ps_globals)
763:
764: /* Upload progress */
765: STD_PHP_INI_BOOLEAN("session.upload_progress.enabled",
766: "1", ZEND_INI_PERDIR, OnUpdateBool, rfc1867_enabled, php_ps_globals, ps_globals)
767: STD_PHP_INI_BOOLEAN("session.upload_progress.cleanup",
768: "1", ZEND_INI_PERDIR, OnUpdateBool, rfc1867_cleanup, php_ps_globals, ps_globals)
769: STD_PHP_INI_ENTRY("session.upload_progress.prefix",
770: "upload_progress_", ZEND_INI_PERDIR, OnUpdateSmartStr, rfc1867_prefix, php_ps_globals, ps_globals)
771: STD_PHP_INI_ENTRY("session.upload_progress.name",
772: "PHP_SESSION_UPLOAD_PROGRESS", ZEND_INI_PERDIR, OnUpdateSmartStr, rfc1867_name, php_ps_globals, ps_globals)
773: STD_PHP_INI_ENTRY("session.upload_progress.freq", "1%", ZEND_INI_PERDIR, OnUpdateRfc1867Freq, rfc1867_freq, php_ps_globals, ps_globals)
774: STD_PHP_INI_ENTRY("session.upload_progress.min_freq",
775: "1", ZEND_INI_PERDIR, OnUpdateReal, rfc1867_min_freq,php_ps_globals, ps_globals)
776:
777: /* Commented out until future discussion */
778: /* PHP_INI_ENTRY("session.encode_sources", "globals,track", PHP_INI_ALL, NULL) */
779: PHP_INI_END()
780: /* }}} */
781:
782: /* ***************
783: * Serializers *
784: *************** */
785:
786: #define PS_BIN_NR_OF_BITS 8
787: #define PS_BIN_UNDEF (1<<(PS_BIN_NR_OF_BITS-1))
788: #define PS_BIN_MAX (PS_BIN_UNDEF-1)
789:
790: PS_SERIALIZER_ENCODE_FUNC(php_binary) /* {{{ */
791: {
792: smart_str buf = {0};
793: php_serialize_data_t var_hash;
794: PS_ENCODE_VARS;
795:
796: PHP_VAR_SERIALIZE_INIT(var_hash);
797:
798: PS_ENCODE_LOOP(
799: if (key_length > PS_BIN_MAX) continue;
800: smart_str_appendc(&buf, (unsigned char) key_length);
801: smart_str_appendl(&buf, key, key_length);
802: php_var_serialize(&buf, struc, &var_hash TSRMLS_CC);
803: } else {
804: if (key_length > PS_BIN_MAX) continue;
805: smart_str_appendc(&buf, (unsigned char) (key_length & PS_BIN_UNDEF));
806: smart_str_appendl(&buf, key, key_length);
807: );
808:
809: if (newlen) {
810: *newlen = buf.len;
811: }
812: smart_str_0(&buf);
813: *newstr = buf.c;
814: PHP_VAR_SERIALIZE_DESTROY(var_hash);
815:
816: return SUCCESS;
817: }
818: /* }}} */
819:
820: PS_SERIALIZER_DECODE_FUNC(php_binary) /* {{{ */
821: {
822: const char *p;
823: char *name;
824: const char *endptr = val + vallen;
825: zval *current;
826: int namelen;
827: int has_value;
828: php_unserialize_data_t var_hash;
829:
830: PHP_VAR_UNSERIALIZE_INIT(var_hash);
831:
832: for (p = val; p < endptr; ) {
833: zval **tmp;
834: namelen = ((unsigned char)(*p)) & (~PS_BIN_UNDEF);
835:
836: if (namelen < 0 || namelen > PS_BIN_MAX || (p + namelen) >= endptr) {
837: return FAILURE;
838: }
839:
840: has_value = *p & PS_BIN_UNDEF ? 0 : 1;
841:
842: name = estrndup(p + 1, namelen);
843:
844: p += namelen + 1;
845:
846: if (zend_hash_find(&EG(symbol_table), name, namelen + 1, (void **) &tmp) == SUCCESS) {
847: if ((Z_TYPE_PP(tmp) == IS_ARRAY && Z_ARRVAL_PP(tmp) == &EG(symbol_table)) || *tmp == PS(http_session_vars)) {
848: efree(name);
849: continue;
850: }
851: }
852:
853: if (has_value) {
854: ALLOC_INIT_ZVAL(current);
855: if (php_var_unserialize(¤t, (const unsigned char **) &p, (const unsigned char *) endptr, &var_hash TSRMLS_CC)) {
856: php_set_session_var(name, namelen, current, &var_hash TSRMLS_CC);
857: }
858: zval_ptr_dtor(¤t);
859: }
860: PS_ADD_VARL(name, namelen);
861: efree(name);
862: }
863:
864: PHP_VAR_UNSERIALIZE_DESTROY(var_hash);
865:
866: return SUCCESS;
867: }
868: /* }}} */
869:
870: #define PS_DELIMITER '|'
871: #define PS_UNDEF_MARKER '!'
872:
873: PS_SERIALIZER_ENCODE_FUNC(php) /* {{{ */
874: {
875: smart_str buf = {0};
876: php_serialize_data_t var_hash;
877: PS_ENCODE_VARS;
878:
879: PHP_VAR_SERIALIZE_INIT(var_hash);
880:
881: PS_ENCODE_LOOP(
882: smart_str_appendl(&buf, key, key_length);
883: if (memchr(key, PS_DELIMITER, key_length) || memchr(key, PS_UNDEF_MARKER, key_length)) {
884: PHP_VAR_SERIALIZE_DESTROY(var_hash);
885: smart_str_free(&buf);
886: return FAILURE;
887: }
888: smart_str_appendc(&buf, PS_DELIMITER);
889:
890: php_var_serialize(&buf, struc, &var_hash TSRMLS_CC);
891: } else {
892: smart_str_appendc(&buf, PS_UNDEF_MARKER);
893: smart_str_appendl(&buf, key, key_length);
894: smart_str_appendc(&buf, PS_DELIMITER);
895: );
896:
897: if (newlen) {
898: *newlen = buf.len;
899: }
900: smart_str_0(&buf);
901: *newstr = buf.c;
902:
903: PHP_VAR_SERIALIZE_DESTROY(var_hash);
904: return SUCCESS;
905: }
906: /* }}} */
907:
908: PS_SERIALIZER_DECODE_FUNC(php) /* {{{ */
909: {
910: const char *p, *q;
911: char *name;
912: const char *endptr = val + vallen;
913: zval *current;
914: int namelen;
915: int has_value;
916: php_unserialize_data_t var_hash;
917:
918: PHP_VAR_UNSERIALIZE_INIT(var_hash);
919:
920: p = val;
921:
922: while (p < endptr) {
923: zval **tmp;
924: q = p;
925: while (*q != PS_DELIMITER) {
926: if (++q >= endptr) goto break_outer_loop;
927: }
928: if (p[0] == PS_UNDEF_MARKER) {
929: p++;
930: has_value = 0;
931: } else {
932: has_value = 1;
933: }
934:
935: namelen = q - p;
936: name = estrndup(p, namelen);
937: q++;
938:
939: if (zend_hash_find(&EG(symbol_table), name, namelen + 1, (void **) &tmp) == SUCCESS) {
940: if ((Z_TYPE_PP(tmp) == IS_ARRAY && Z_ARRVAL_PP(tmp) == &EG(symbol_table)) || *tmp == PS(http_session_vars)) {
941: goto skip;
942: }
943: }
944:
945: if (has_value) {
946: ALLOC_INIT_ZVAL(current);
947: if (php_var_unserialize(¤t, (const unsigned char **) &q, (const unsigned char *) endptr, &var_hash TSRMLS_CC)) {
948: php_set_session_var(name, namelen, current, &var_hash TSRMLS_CC);
949: }
950: zval_ptr_dtor(¤t);
951: }
952: PS_ADD_VARL(name, namelen);
953: skip:
954: efree(name);
955:
956: p = q;
957: }
958: break_outer_loop:
959:
960: PHP_VAR_UNSERIALIZE_DESTROY(var_hash);
961:
962: return SUCCESS;
963: }
964: /* }}} */
965:
966: #define MAX_SERIALIZERS 10
967: #define PREDEFINED_SERIALIZERS 2
968:
969: static ps_serializer ps_serializers[MAX_SERIALIZERS + 1] = {
970: PS_SERIALIZER_ENTRY(php),
971: PS_SERIALIZER_ENTRY(php_binary)
972: };
973:
974: PHPAPI int php_session_register_serializer(const char *name, int (*encode)(PS_SERIALIZER_ENCODE_ARGS), int (*decode)(PS_SERIALIZER_DECODE_ARGS)) /* {{{ */
975: {
976: int ret = -1;
977: int i;
978:
979: for (i = 0; i < MAX_SERIALIZERS; i++) {
980: if (ps_serializers[i].name == NULL) {
981: ps_serializers[i].name = name;
982: ps_serializers[i].encode = encode;
983: ps_serializers[i].decode = decode;
984: ps_serializers[i + 1].name = NULL;
985: ret = 0;
986: break;
987: }
988: }
989: return ret;
990: }
991: /* }}} */
992:
993: /* *******************
994: * Storage Modules *
995: ******************* */
996:
997: #define MAX_MODULES 10
998: #define PREDEFINED_MODULES 2
999:
1000: static ps_module *ps_modules[MAX_MODULES + 1] = {
1001: ps_files_ptr,
1002: ps_user_ptr
1003: };
1004:
1005: PHPAPI int php_session_register_module(ps_module *ptr) /* {{{ */
1006: {
1007: int ret = -1;
1008: int i;
1009:
1010: for (i = 0; i < MAX_MODULES; i++) {
1011: if (!ps_modules[i]) {
1012: ps_modules[i] = ptr;
1013: ret = 0;
1014: break;
1015: }
1016: }
1017: return ret;
1018: }
1019: /* }}} */
1020:
1021: /* ******************
1022: * Cache Limiters *
1023: ****************** */
1024:
1025: typedef struct {
1026: char *name;
1027: void (*func)(TSRMLS_D);
1028: } php_session_cache_limiter_t;
1029:
1030: #define CACHE_LIMITER(name) _php_cache_limiter_##name
1031: #define CACHE_LIMITER_FUNC(name) static void CACHE_LIMITER(name)(TSRMLS_D)
1032: #define CACHE_LIMITER_ENTRY(name) { #name, CACHE_LIMITER(name) },
1033: #define ADD_HEADER(a) sapi_add_header(a, strlen(a), 1);
1034: #define MAX_STR 512
1035:
1036: static char *month_names[] = {
1037: "Jan", "Feb", "Mar", "Apr", "May", "Jun",
1038: "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
1039: };
1040:
1041: static char *week_days[] = {
1042: "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"
1043: };
1044:
1045: static inline void strcpy_gmt(char *ubuf, time_t *when) /* {{{ */
1046: {
1047: char buf[MAX_STR];
1048: struct tm tm, *res;
1049: int n;
1050:
1051: res = php_gmtime_r(when, &tm);
1052:
1053: if (!res) {
1054: ubuf[0] = '\0';
1055: return;
1056: }
1057:
1058: n = slprintf(buf, sizeof(buf), "%s, %02d %s %d %02d:%02d:%02d GMT", /* SAFE */
1059: week_days[tm.tm_wday], tm.tm_mday,
1060: month_names[tm.tm_mon], tm.tm_year + 1900,
1061: tm.tm_hour, tm.tm_min,
1062: tm.tm_sec);
1063: memcpy(ubuf, buf, n);
1064: ubuf[n] = '\0';
1065: }
1066: /* }}} */
1067:
1068: static inline void last_modified(TSRMLS_D) /* {{{ */
1069: {
1070: const char *path;
1071: struct stat sb;
1072: char buf[MAX_STR + 1];
1073:
1074: path = SG(request_info).path_translated;
1075: if (path) {
1076: if (VCWD_STAT(path, &sb) == -1) {
1077: return;
1078: }
1079:
1080: #define LAST_MODIFIED "Last-Modified: "
1081: memcpy(buf, LAST_MODIFIED, sizeof(LAST_MODIFIED) - 1);
1082: strcpy_gmt(buf + sizeof(LAST_MODIFIED) - 1, &sb.st_mtime);
1083: ADD_HEADER(buf);
1084: }
1085: }
1086: /* }}} */
1087:
1088: #define EXPIRES "Expires: "
1089: CACHE_LIMITER_FUNC(public) /* {{{ */
1090: {
1091: char buf[MAX_STR + 1];
1092: struct timeval tv;
1093: time_t now;
1094:
1095: gettimeofday(&tv, NULL);
1096: now = tv.tv_sec + PS(cache_expire) * 60;
1097: memcpy(buf, EXPIRES, sizeof(EXPIRES) - 1);
1098: strcpy_gmt(buf + sizeof(EXPIRES) - 1, &now);
1099: ADD_HEADER(buf);
1100:
1101: snprintf(buf, sizeof(buf) , "Cache-Control: public, max-age=%ld", PS(cache_expire) * 60); /* SAFE */
1102: ADD_HEADER(buf);
1103:
1104: last_modified(TSRMLS_C);
1105: }
1106: /* }}} */
1107:
1108: CACHE_LIMITER_FUNC(private_no_expire) /* {{{ */
1109: {
1110: char buf[MAX_STR + 1];
1111:
1112: snprintf(buf, sizeof(buf), "Cache-Control: private, max-age=%ld, pre-check=%ld", PS(cache_expire) * 60, PS(cache_expire) * 60); /* SAFE */
1113: ADD_HEADER(buf);
1114:
1115: last_modified(TSRMLS_C);
1116: }
1117: /* }}} */
1118:
1119: CACHE_LIMITER_FUNC(private) /* {{{ */
1120: {
1121: ADD_HEADER("Expires: Thu, 19 Nov 1981 08:52:00 GMT");
1122: CACHE_LIMITER(private_no_expire)(TSRMLS_C);
1123: }
1124: /* }}} */
1125:
1126: CACHE_LIMITER_FUNC(nocache) /* {{{ */
1127: {
1128: ADD_HEADER("Expires: Thu, 19 Nov 1981 08:52:00 GMT");
1129:
1130: /* For HTTP/1.1 conforming clients and the rest (MSIE 5) */
1131: ADD_HEADER("Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
1132:
1133: /* For HTTP/1.0 conforming clients */
1134: ADD_HEADER("Pragma: no-cache");
1135: }
1136: /* }}} */
1137:
1138: static php_session_cache_limiter_t php_session_cache_limiters[] = {
1139: CACHE_LIMITER_ENTRY(public)
1140: CACHE_LIMITER_ENTRY(private)
1141: CACHE_LIMITER_ENTRY(private_no_expire)
1142: CACHE_LIMITER_ENTRY(nocache)
1143: {0}
1144: };
1145:
1146: static int php_session_cache_limiter(TSRMLS_D) /* {{{ */
1147: {
1148: php_session_cache_limiter_t *lim;
1149:
1150: if (PS(cache_limiter)[0] == '\0') return 0;
1151:
1152: if (SG(headers_sent)) {
1153: const char *output_start_filename = php_output_get_start_filename(TSRMLS_C);
1154: int output_start_lineno = php_output_get_start_lineno(TSRMLS_C);
1155:
1156: if (output_start_filename) {
1157: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot send session cache limiter - headers already sent (output started at %s:%d)", output_start_filename, output_start_lineno);
1158: } else {
1159: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot send session cache limiter - headers already sent");
1160: }
1161: return -2;
1162: }
1163:
1164: for (lim = php_session_cache_limiters; lim->name; lim++) {
1165: if (!strcasecmp(lim->name, PS(cache_limiter))) {
1166: lim->func(TSRMLS_C);
1167: return 0;
1168: }
1169: }
1170:
1171: return -1;
1172: }
1173: /* }}} */
1174:
1175: /* *********************
1176: * Cookie Management *
1177: ********************* */
1178:
1179: #define COOKIE_SET_COOKIE "Set-Cookie: "
1180: #define COOKIE_EXPIRES "; expires="
1181: #define COOKIE_PATH "; path="
1182: #define COOKIE_DOMAIN "; domain="
1183: #define COOKIE_SECURE "; secure"
1184: #define COOKIE_HTTPONLY "; HttpOnly"
1185:
1186: /*
1187: * Remove already sent session ID cookie.
1188: * It must be directly removed from SG(sapi_header) because sapi_add_header_ex()
1189: * removes all of matching cookie. i.e. It deletes all of Set-Cookie headers.
1190: */
1191: static void php_session_remove_cookie(TSRMLS_D) {
1192: sapi_header_struct *header;
1193: zend_llist *l = &SG(sapi_headers).headers;
1194: zend_llist_element *next;
1195: zend_llist_element *current;
1196: char *session_cookie, *e_session_name;
1197: int session_cookie_len, len = sizeof("Set-Cookie")-1;
1198:
1199: e_session_name = php_url_encode(PS(session_name), strlen(PS(session_name)), NULL);
1200: spprintf(&session_cookie, 0, "Set-Cookie: %s=", e_session_name);
1201: efree(e_session_name);
1202:
1203: session_cookie_len = strlen(session_cookie);
1204: current = l->head;
1205: while (current) {
1206: header = (sapi_header_struct *)(current->data);
1207: next = current->next;
1208: if (header->header_len > len && header->header[len] == ':'
1209: && !strncmp(header->header, session_cookie, session_cookie_len)) {
1210: if (current->prev) {
1211: current->prev->next = next;
1212: } else {
1213: l->head = next;
1214: }
1215: if (next) {
1216: next->prev = current->prev;
1217: } else {
1218: l->tail = current->prev;
1219: }
1220: sapi_free_header(header);
1221: efree(current);
1222: --l->count;
1223: }
1224: current = next;
1225: }
1226: efree(session_cookie);
1227: }
1228:
1229: static void php_session_send_cookie(TSRMLS_D) /* {{{ */
1230: {
1231: smart_str ncookie = {0};
1232: char *date_fmt = NULL;
1233: char *e_session_name, *e_id;
1234:
1235: if (SG(headers_sent)) {
1236: const char *output_start_filename = php_output_get_start_filename(TSRMLS_C);
1237: int output_start_lineno = php_output_get_start_lineno(TSRMLS_C);
1238:
1239: if (output_start_filename) {
1240: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot send session cookie - headers already sent by (output started at %s:%d)", output_start_filename, output_start_lineno);
1241: } else {
1242: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot send session cookie - headers already sent");
1243: }
1244: return;
1245: }
1246:
1247: /* URL encode session_name and id because they might be user supplied */
1248: e_session_name = php_url_encode(PS(session_name), strlen(PS(session_name)), NULL);
1249: e_id = php_url_encode(PS(id), strlen(PS(id)), NULL);
1250:
1251: smart_str_appends(&ncookie, COOKIE_SET_COOKIE);
1252: smart_str_appends(&ncookie, e_session_name);
1253: smart_str_appendc(&ncookie, '=');
1254: smart_str_appends(&ncookie, e_id);
1255:
1256: efree(e_session_name);
1257: efree(e_id);
1258:
1259: if (PS(cookie_lifetime) > 0) {
1260: struct timeval tv;
1261: time_t t;
1262:
1263: gettimeofday(&tv, NULL);
1264: t = tv.tv_sec + PS(cookie_lifetime);
1265:
1266: if (t > 0) {
1267: date_fmt = php_format_date("D, d-M-Y H:i:s T", sizeof("D, d-M-Y H:i:s T")-1, t, 0 TSRMLS_CC);
1268: smart_str_appends(&ncookie, COOKIE_EXPIRES);
1269: smart_str_appends(&ncookie, date_fmt);
1270: efree(date_fmt);
1271: }
1272: }
1273:
1274: if (PS(cookie_path)[0]) {
1275: smart_str_appends(&ncookie, COOKIE_PATH);
1276: smart_str_appends(&ncookie, PS(cookie_path));
1277: }
1278:
1279: if (PS(cookie_domain)[0]) {
1280: smart_str_appends(&ncookie, COOKIE_DOMAIN);
1281: smart_str_appends(&ncookie, PS(cookie_domain));
1282: }
1283:
1284: if (PS(cookie_secure)) {
1285: smart_str_appends(&ncookie, COOKIE_SECURE);
1286: }
1287:
1288: if (PS(cookie_httponly)) {
1289: smart_str_appends(&ncookie, COOKIE_HTTPONLY);
1290: }
1291:
1292: smart_str_0(&ncookie);
1293:
1294: php_session_remove_cookie(TSRMLS_C); /* remove already sent session ID cookie */
1295: sapi_add_header_ex(ncookie.c, ncookie.len, 0, 0 TSRMLS_CC);
1296: }
1297: /* }}} */
1298:
1299: PHPAPI ps_module *_php_find_ps_module(char *name TSRMLS_DC) /* {{{ */
1300: {
1301: ps_module *ret = NULL;
1302: ps_module **mod;
1303: int i;
1304:
1305: for (i = 0, mod = ps_modules; i < MAX_MODULES; i++, mod++) {
1306: if (*mod && !strcasecmp(name, (*mod)->s_name)) {
1307: ret = *mod;
1308: break;
1309: }
1310: }
1311: return ret;
1312: }
1313: /* }}} */
1314:
1315: PHPAPI const ps_serializer *_php_find_ps_serializer(char *name TSRMLS_DC) /* {{{ */
1316: {
1317: const ps_serializer *ret = NULL;
1318: const ps_serializer *mod;
1319:
1320: for (mod = ps_serializers; mod->name; mod++) {
1321: if (!strcasecmp(name, mod->name)) {
1322: ret = mod;
1323: break;
1324: }
1325: }
1326: return ret;
1327: }
1328: /* }}} */
1329:
1330: #define PPID2SID \
1331: convert_to_string((*ppid)); \
1332: PS(id) = estrndup(Z_STRVAL_PP(ppid), Z_STRLEN_PP(ppid))
1333:
1334: static void php_session_reset_id(TSRMLS_D) /* {{{ */
1335: {
1336: int module_number = PS(module_number);
1337:
1338: if (PS(use_cookies) && PS(send_cookie)) {
1339: php_session_send_cookie(TSRMLS_C);
1340: PS(send_cookie) = 0;
1341: }
1342:
1343: /* if the SID constant exists, destroy it. */
1344: zend_hash_del(EG(zend_constants), "sid", sizeof("sid"));
1345:
1346: if (PS(define_sid)) {
1347: smart_str var = {0};
1348:
1349: smart_str_appends(&var, PS(session_name));
1350: smart_str_appendc(&var, '=');
1351: smart_str_appends(&var, PS(id));
1352: smart_str_0(&var);
1353: REGISTER_STRINGL_CONSTANT("SID", var.c, var.len, 0);
1354: } else {
1355: REGISTER_STRINGL_CONSTANT("SID", STR_EMPTY_ALLOC(), 0, 0);
1356: }
1357:
1358: if (PS(apply_trans_sid)) {
1359: php_url_scanner_reset_vars(TSRMLS_C);
1360: php_url_scanner_add_var(PS(session_name), strlen(PS(session_name)), PS(id), strlen(PS(id)), 1 TSRMLS_CC);
1361: }
1362: }
1363: /* }}} */
1364:
1365: PHPAPI void php_session_start(TSRMLS_D) /* {{{ */
1366: {
1367: zval **ppid;
1368: zval **data;
1369: char *p, *value;
1370: int nrand;
1371: int lensess;
1372:
1373: if (PS(use_only_cookies)) {
1374: PS(apply_trans_sid) = 0;
1375: } else {
1376: PS(apply_trans_sid) = PS(use_trans_sid);
1377: }
1378:
1379: switch (PS(session_status)) {
1380: case php_session_active:
1381: php_error(E_NOTICE, "A session had already been started - ignoring session_start()");
1382: return;
1383: break;
1384:
1385: case php_session_disabled:
1386: value = zend_ini_string("session.save_handler", sizeof("session.save_handler"), 0);
1387: if (!PS(mod) && value) {
1388: PS(mod) = _php_find_ps_module(value TSRMLS_CC);
1389: if (!PS(mod)) {
1390: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot find save handler '%s' - session startup failed", value);
1391: return;
1392: }
1393: }
1394: value = zend_ini_string("session.serialize_handler", sizeof("session.serialize_handler"), 0);
1395: if (!PS(serializer) && value) {
1396: PS(serializer) = _php_find_ps_serializer(value TSRMLS_CC);
1397: if (!PS(serializer)) {
1398: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot find serialization handler '%s' - session startup failed", value);
1399: return;
1400: }
1401: }
1402: PS(session_status) = php_session_none;
1403: /* fallthrough */
1404:
1405: default:
1406: case php_session_none:
1407: PS(define_sid) = 1;
1408: PS(send_cookie) = 1;
1409: }
1410:
1411: lensess = strlen(PS(session_name));
1412:
1413: /* Cookies are preferred, because initially
1414: * cookie and get variables will be available. */
1415:
1416: if (!PS(id)) {
1417: if (PS(use_cookies) && zend_hash_find(&EG(symbol_table), "_COOKIE", sizeof("_COOKIE"), (void **) &data) == SUCCESS &&
1418: Z_TYPE_PP(data) == IS_ARRAY &&
1419: zend_hash_find(Z_ARRVAL_PP(data), PS(session_name), lensess + 1, (void **) &ppid) == SUCCESS
1420: ) {
1421: PPID2SID;
1422: PS(apply_trans_sid) = 0;
1423: PS(send_cookie) = 0;
1424: PS(define_sid) = 0;
1425: }
1426:
1427: if (!PS(use_only_cookies) && !PS(id) &&
1428: zend_hash_find(&EG(symbol_table), "_GET", sizeof("_GET"), (void **) &data) == SUCCESS &&
1429: Z_TYPE_PP(data) == IS_ARRAY &&
1430: zend_hash_find(Z_ARRVAL_PP(data), PS(session_name), lensess + 1, (void **) &ppid) == SUCCESS
1431: ) {
1432: PPID2SID;
1433: PS(send_cookie) = 0;
1434: }
1435:
1436: if (!PS(use_only_cookies) && !PS(id) &&
1437: zend_hash_find(&EG(symbol_table), "_POST", sizeof("_POST"), (void **) &data) == SUCCESS &&
1438: Z_TYPE_PP(data) == IS_ARRAY &&
1439: zend_hash_find(Z_ARRVAL_PP(data), PS(session_name), lensess + 1, (void **) &ppid) == SUCCESS
1440: ) {
1441: PPID2SID;
1442: PS(send_cookie) = 0;
1443: }
1444: }
1445:
1446: /* Check the REQUEST_URI symbol for a string of the form
1447: * '<session-name>=<session-id>' to allow URLs of the form
1448: * http://yoursite/<session-name>=<session-id>/script.php */
1449:
1450: if (!PS(use_only_cookies) && !PS(id) && PG(http_globals)[TRACK_VARS_SERVER] &&
1451: zend_hash_find(Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_SERVER]), "REQUEST_URI", sizeof("REQUEST_URI"), (void **) &data) == SUCCESS &&
1452: Z_TYPE_PP(data) == IS_STRING &&
1453: (p = strstr(Z_STRVAL_PP(data), PS(session_name))) &&
1454: p[lensess] == '='
1455: ) {
1456: char *q;
1457:
1458: p += lensess + 1;
1459: if ((q = strpbrk(p, "/?\\"))) {
1460: PS(id) = estrndup(p, q - p);
1461: PS(send_cookie) = 0;
1462: }
1463: }
1464:
1465: /* Check whether the current request was referred to by
1466: * an external site which invalidates the previously found id. */
1467:
1468: if (PS(id) &&
1469: PS(extern_referer_chk)[0] != '\0' &&
1470: PG(http_globals)[TRACK_VARS_SERVER] &&
1471: zend_hash_find(Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_SERVER]), "HTTP_REFERER", sizeof("HTTP_REFERER"), (void **) &data) == SUCCESS &&
1472: Z_TYPE_PP(data) == IS_STRING &&
1473: Z_STRLEN_PP(data) != 0 &&
1474: strstr(Z_STRVAL_PP(data), PS(extern_referer_chk)) == NULL
1475: ) {
1476: efree(PS(id));
1477: PS(id) = NULL;
1478: PS(send_cookie) = 1;
1479: if (PS(use_trans_sid) && !PS(use_only_cookies)) {
1480: PS(apply_trans_sid) = 1;
1481: }
1482: }
1483:
1484: php_session_initialize(TSRMLS_C);
1485:
1486: if (!PS(use_cookies) && PS(send_cookie)) {
1487: if (PS(use_trans_sid) && !PS(use_only_cookies)) {
1488: PS(apply_trans_sid) = 1;
1489: }
1490: PS(send_cookie) = 0;
1491: }
1492:
1493: php_session_reset_id(TSRMLS_C);
1494:
1495: PS(session_status) = php_session_active;
1496:
1497: php_session_cache_limiter(TSRMLS_C);
1498:
1499: if ((PS(mod_data) || PS(mod_user_implemented)) && PS(gc_probability) > 0) {
1500: int nrdels = -1;
1501:
1502: nrand = (int) ((float) PS(gc_divisor) * php_combined_lcg(TSRMLS_C));
1503: if (nrand < PS(gc_probability)) {
1504: PS(mod)->s_gc(&PS(mod_data), PS(gc_maxlifetime), &nrdels TSRMLS_CC);
1505: #ifdef SESSION_DEBUG
1506: if (nrdels != -1) {
1507: php_error_docref(NULL TSRMLS_CC, E_NOTICE, "purged %d expired session objects", nrdels);
1508: }
1509: #endif
1510: }
1511: }
1512: }
1513: /* }}} */
1514:
1515: static void php_session_flush(TSRMLS_D) /* {{{ */
1516: {
1517: if (PS(session_status) == php_session_active) {
1518: PS(session_status) = php_session_none;
1519: php_session_save_current_state(TSRMLS_C);
1520: }
1521: }
1522: /* }}} */
1523:
1524: PHPAPI void session_adapt_url(const char *url, size_t urllen, char **new, size_t *newlen TSRMLS_DC) /* {{{ */
1525: {
1526: if (PS(apply_trans_sid) && (PS(session_status) == php_session_active)) {
1527: *new = php_url_scanner_adapt_single_url(url, urllen, PS(session_name), PS(id), newlen TSRMLS_CC);
1528: }
1529: }
1530: /* }}} */
1531:
1532: /* ********************************
1533: * Userspace exported functions *
1534: ******************************** */
1535:
1536: /* {{{ proto void session_set_cookie_params(int lifetime [, string path [, string domain [, bool secure[, bool httponly]]]])
1537: Set session cookie parameters */
1538: static PHP_FUNCTION(session_set_cookie_params)
1539: {
1540: zval **lifetime = NULL;
1541: char *path = NULL, *domain = NULL;
1542: int path_len, domain_len, argc = ZEND_NUM_ARGS();
1543: zend_bool secure = 0, httponly = 0;
1544:
1545: if (!PS(use_cookies) ||
1546: zend_parse_parameters(argc TSRMLS_CC, "Z|ssbb", &lifetime, &path, &path_len, &domain, &domain_len, &secure, &httponly) == FAILURE) {
1547: return;
1548: }
1549:
1550: convert_to_string_ex(lifetime);
1551:
1552: zend_alter_ini_entry("session.cookie_lifetime", sizeof("session.cookie_lifetime"), Z_STRVAL_PP(lifetime), Z_STRLEN_PP(lifetime), PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
1553:
1554: if (path) {
1555: zend_alter_ini_entry("session.cookie_path", sizeof("session.cookie_path"), path, path_len, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
1556: }
1557: if (domain) {
1558: zend_alter_ini_entry("session.cookie_domain", sizeof("session.cookie_domain"), domain, domain_len, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
1559: }
1560:
1561: if (argc > 3) {
1562: zend_alter_ini_entry("session.cookie_secure", sizeof("session.cookie_secure"), secure ? "1" : "0", 1, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
1563: }
1564: if (argc > 4) {
1565: zend_alter_ini_entry("session.cookie_httponly", sizeof("session.cookie_httponly"), httponly ? "1" : "0", 1, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
1566: }
1567: }
1568: /* }}} */
1569:
1570: /* {{{ proto array session_get_cookie_params(void)
1571: Return the session cookie parameters */
1572: static PHP_FUNCTION(session_get_cookie_params)
1573: {
1574: if (zend_parse_parameters_none() == FAILURE) {
1575: return;
1576: }
1577:
1578: array_init(return_value);
1579:
1580: add_assoc_long(return_value, "lifetime", PS(cookie_lifetime));
1581: add_assoc_string(return_value, "path", PS(cookie_path), 1);
1582: add_assoc_string(return_value, "domain", PS(cookie_domain), 1);
1583: add_assoc_bool(return_value, "secure", PS(cookie_secure));
1584: add_assoc_bool(return_value, "httponly", PS(cookie_httponly));
1585: }
1586: /* }}} */
1587:
1588: /* {{{ proto string session_name([string newname])
1589: Return the current session name. If newname is given, the session name is replaced with newname */
1590: static PHP_FUNCTION(session_name)
1591: {
1592: char *name = NULL;
1593: int name_len;
1594:
1595: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &name, &name_len) == FAILURE) {
1596: return;
1597: }
1598:
1599: RETVAL_STRING(PS(session_name), 1);
1600:
1601: if (name) {
1602: zend_alter_ini_entry("session.name", sizeof("session.name"), name, name_len, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
1603: }
1604: }
1605: /* }}} */
1606:
1607: /* {{{ proto string session_module_name([string newname])
1608: Return the current module name used for accessing session data. If newname is given, the module name is replaced with newname */
1609: static PHP_FUNCTION(session_module_name)
1610: {
1611: char *name = NULL;
1612: int name_len;
1613:
1614: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &name, &name_len) == FAILURE) {
1615: return;
1616: }
1617:
1618: /* Set return_value to current module name */
1619: if (PS(mod) && PS(mod)->s_name) {
1620: RETVAL_STRING(safe_estrdup(PS(mod)->s_name), 0);
1621: } else {
1622: RETVAL_EMPTY_STRING();
1623: }
1624:
1625: if (name) {
1626: if (!_php_find_ps_module(name TSRMLS_CC)) {
1627: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot find named PHP session module (%s)", name);
1628:
1629: zval_dtor(return_value);
1630: RETURN_FALSE;
1631: }
1632: if (PS(mod_data) || PS(mod_user_implemented)) {
1633: PS(mod)->s_close(&PS(mod_data) TSRMLS_CC);
1634: }
1635: PS(mod_data) = NULL;
1636:
1637: zend_alter_ini_entry("session.save_handler", sizeof("session.save_handler"), name, name_len, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
1638: }
1639: }
1640: /* }}} */
1641:
1642: /* {{{ proto void session_set_save_handler(string open, string close, string read, string write, string destroy, string gc)
1643: Sets user-level functions */
1644: static PHP_FUNCTION(session_set_save_handler)
1645: {
1646: zval ***args = NULL;
1647: int i, num_args, argc = ZEND_NUM_ARGS();
1648: char *name;
1649:
1650: if (PS(session_status) != php_session_none) {
1651: RETURN_FALSE;
1652: }
1653:
1654: if (argc != 1 && argc != 2 && argc != 6) {
1655: WRONG_PARAM_COUNT;
1656: }
1657:
1658: if (argc <= 2) {
1659: zval *obj = NULL, *callback = NULL;
1660: zend_uint func_name_len;
1661: char *func_name;
1662: HashPosition pos;
1663: zend_function *default_mptr, *current_mptr;
1664: ulong func_index;
1665: php_shutdown_function_entry shutdown_function_entry;
1666: zend_bool register_shutdown = 1;
1667:
1668: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "O|b", &obj, php_session_iface_entry, ®ister_shutdown) == FAILURE) {
1669: RETURN_FALSE;
1670: }
1671:
1672: /* Find implemented methods */
1673: zend_hash_internal_pointer_reset_ex(&php_session_class_entry->function_table, &pos);
1674: i = 0;
1675: while (zend_hash_get_current_data_ex(&php_session_class_entry->function_table, (void **) &default_mptr, &pos) == SUCCESS) {
1676: zend_hash_get_current_key_ex(&php_session_class_entry->function_table, &func_name, &func_name_len, &func_index, 0, &pos);
1677:
1678: if (zend_hash_find(&Z_OBJCE_P(obj)->function_table, func_name, func_name_len, (void **)¤t_mptr) == SUCCESS) {
1679: if (PS(mod_user_names).names[i] != NULL) {
1680: zval_ptr_dtor(&PS(mod_user_names).names[i]);
1681: }
1682:
1683: MAKE_STD_ZVAL(callback);
1684: array_init_size(callback, 2);
1685: Z_ADDREF_P(obj);
1686: add_next_index_zval(callback, obj);
1687: add_next_index_stringl(callback, func_name, func_name_len - 1, 1);
1688: PS(mod_user_names).names[i] = callback;
1689: } else {
1690: php_error_docref(NULL TSRMLS_CC, E_ERROR, "Session handler's function table is corrupt");
1691: RETURN_FALSE;
1692: }
1693:
1694: zend_hash_move_forward_ex(&php_session_class_entry->function_table, &pos);
1695: ++i;
1696: }
1697:
1698: if (register_shutdown) {
1699: /* create shutdown function */
1700: shutdown_function_entry.arg_count = 1;
1701: shutdown_function_entry.arguments = (zval **) safe_emalloc(sizeof(zval *), 1, 0);
1702:
1703: MAKE_STD_ZVAL(callback);
1704: ZVAL_STRING(callback, "session_register_shutdown", 1);
1705: shutdown_function_entry.arguments[0] = callback;
1706:
1707: /* add shutdown function, removing the old one if it exists */
1708: if (!register_user_shutdown_function("session_shutdown", sizeof("session_shutdown"), &shutdown_function_entry TSRMLS_CC)) {
1709: zval_ptr_dtor(&callback);
1710: efree(shutdown_function_entry.arguments);
1711: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to register session shutdown function");
1712: RETURN_FALSE;
1713: }
1714: } else {
1715: /* remove shutdown function */
1716: remove_user_shutdown_function("session_shutdown", sizeof("session_shutdown") TSRMLS_CC);
1717: }
1718:
1719: if (PS(mod) && PS(session_status) == php_session_none && PS(mod) != &ps_mod_user) {
1720: zend_alter_ini_entry("session.save_handler", sizeof("session.save_handler"), "user", sizeof("user")-1, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
1721: }
1722:
1723: RETURN_TRUE;
1724: }
1725:
1726: if (zend_parse_parameters(argc TSRMLS_CC, "+", &args, &num_args) == FAILURE) {
1727: return;
1728: }
1729:
1730: /* remove shutdown function */
1731: remove_user_shutdown_function("session_shutdown", sizeof("session_shutdown") TSRMLS_CC);
1732:
1733: for (i = 0; i < 6; i++) {
1734: if (!zend_is_callable(*args[i], 0, &name TSRMLS_CC)) {
1735: efree(args);
1736: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Argument %d is not a valid callback", i+1);
1737: efree(name);
1738: RETURN_FALSE;
1739: }
1740: efree(name);
1741: }
1742:
1743: if (PS(mod) && PS(mod) != &ps_mod_user) {
1744: zend_alter_ini_entry("session.save_handler", sizeof("session.save_handler"), "user", sizeof("user")-1, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
1745: }
1746:
1747: for (i = 0; i < 6; i++) {
1748: if (PS(mod_user_names).names[i] != NULL) {
1749: zval_ptr_dtor(&PS(mod_user_names).names[i]);
1750: }
1751: Z_ADDREF_PP(args[i]);
1752: PS(mod_user_names).names[i] = *args[i];
1753: }
1754:
1755: efree(args);
1756: RETURN_TRUE;
1757: }
1758: /* }}} */
1759:
1760: /* {{{ proto string session_save_path([string newname])
1761: Return the current save path passed to module_name. If newname is given, the save path is replaced with newname */
1762: static PHP_FUNCTION(session_save_path)
1763: {
1764: char *name = NULL;
1765: int name_len;
1766:
1767: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &name, &name_len) == FAILURE) {
1768: return;
1769: }
1770:
1771: RETVAL_STRING(PS(save_path), 1);
1772:
1773: if (name) {
1774: if (memchr(name, '\0', name_len) != NULL) {
1775: php_error_docref(NULL TSRMLS_CC, E_WARNING, "The save_path cannot contain NULL characters");
1776: zval_dtor(return_value);
1777: RETURN_FALSE;
1778: }
1779: zend_alter_ini_entry("session.save_path", sizeof("session.save_path"), name, name_len, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
1780: }
1781: }
1782: /* }}} */
1783:
1784: /* {{{ proto string session_id([string newid])
1785: Return the current session id. If newid is given, the session id is replaced with newid */
1786: static PHP_FUNCTION(session_id)
1787: {
1788: char *name = NULL;
1789: int name_len;
1790:
1791: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &name, &name_len) == FAILURE) {
1792: return;
1793: }
1794:
1795: if (PS(id)) {
1796: RETVAL_STRING(PS(id), 1);
1797: } else {
1798: RETVAL_EMPTY_STRING();
1799: }
1800:
1801: if (name) {
1802: if (PS(id)) {
1803: efree(PS(id));
1804: }
1805: PS(id) = estrndup(name, name_len);
1806: }
1807: }
1808: /* }}} */
1809:
1810: /* {{{ proto bool session_regenerate_id([bool delete_old_session])
1811: Update the current session id with a newly generated one. If delete_old_session is set to true, remove the old session. */
1812: static PHP_FUNCTION(session_regenerate_id)
1813: {
1814: zend_bool del_ses = 0;
1815:
1816: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &del_ses) == FAILURE) {
1817: return;
1818: }
1819:
1820: if (SG(headers_sent) && PS(use_cookies)) {
1821: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot regenerate session id - headers already sent");
1822: RETURN_FALSE;
1823: }
1824:
1825: if (PS(session_status) == php_session_active) {
1826: if (PS(id)) {
1827: if (del_ses && PS(mod)->s_destroy(&PS(mod_data), PS(id) TSRMLS_CC) == FAILURE) {
1828: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Session object destruction failed");
1829: RETURN_FALSE;
1830: }
1831: efree(PS(id));
1832: PS(id) = NULL;
1833: }
1834:
1835: PS(id) = PS(mod)->s_create_sid(&PS(mod_data), NULL TSRMLS_CC);
1836:
1837: PS(send_cookie) = 1;
1838: php_session_reset_id(TSRMLS_C);
1839:
1840: RETURN_TRUE;
1841: }
1842: RETURN_FALSE;
1843: }
1844: /* }}} */
1845:
1846: /* {{{ proto string session_cache_limiter([string new_cache_limiter])
1847: Return the current cache limiter. If new_cache_limited is given, the current cache_limiter is replaced with new_cache_limiter */
1848: static PHP_FUNCTION(session_cache_limiter)
1849: {
1850: char *limiter = NULL;
1851: int limiter_len;
1852:
1853: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &limiter, &limiter_len) == FAILURE) {
1854: return;
1855: }
1856:
1857: RETVAL_STRING(PS(cache_limiter), 1);
1858:
1859: if (limiter) {
1860: zend_alter_ini_entry("session.cache_limiter", sizeof("session.cache_limiter"), limiter, limiter_len, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
1861: }
1862: }
1863: /* }}} */
1864:
1865: /* {{{ proto int session_cache_expire([int new_cache_expire])
1866: Return the current cache expire. If new_cache_expire is given, the current cache_expire is replaced with new_cache_expire */
1867: static PHP_FUNCTION(session_cache_expire)
1868: {
1869: zval **expires = NULL;
1870: int argc = ZEND_NUM_ARGS();
1871:
1872: if (zend_parse_parameters(argc TSRMLS_CC, "|Z", &expires) == FAILURE) {
1873: return;
1874: }
1875:
1876: RETVAL_LONG(PS(cache_expire));
1877:
1878: if (argc == 1) {
1879: convert_to_string_ex(expires);
1880: zend_alter_ini_entry("session.cache_expire", sizeof("session.cache_expire"), Z_STRVAL_PP(expires), Z_STRLEN_PP(expires), ZEND_INI_USER, ZEND_INI_STAGE_RUNTIME);
1881: }
1882: }
1883: /* }}} */
1884:
1885: /* {{{ proto string session_encode(void)
1886: Serializes the current setup and returns the serialized representation */
1887: static PHP_FUNCTION(session_encode)
1888: {
1889: int len;
1890: char *enc;
1891:
1892: if (zend_parse_parameters_none() == FAILURE) {
1893: return;
1894: }
1895:
1896: enc = php_session_encode(&len TSRMLS_CC);
1897: if (enc == NULL) {
1898: RETURN_FALSE;
1899: }
1900:
1901: RETVAL_STRINGL(enc, len, 0);
1902: }
1903: /* }}} */
1904:
1905: /* {{{ proto bool session_decode(string data)
1906: Deserializes data and reinitializes the variables */
1907: static PHP_FUNCTION(session_decode)
1908: {
1909: char *str;
1910: int str_len;
1911:
1912: if (PS(session_status) == php_session_none) {
1913: RETURN_FALSE;
1914: }
1915:
1916: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &str, &str_len) == FAILURE) {
1917: return;
1918: }
1919:
1920: php_session_decode(str, str_len TSRMLS_CC);
1921:
1922: RETURN_TRUE;
1923: }
1924: /* }}} */
1925:
1926: /* {{{ proto bool session_start(void)
1927: Begin session - reinitializes freezed variables, registers browsers etc */
1928: static PHP_FUNCTION(session_start)
1929: {
1930: /* skipping check for non-zero args for performance reasons here ?*/
1931: php_session_start(TSRMLS_C);
1932:
1933: if (PS(session_status) != php_session_active) {
1934: RETURN_FALSE;
1935: }
1936: RETURN_TRUE;
1937: }
1938: /* }}} */
1939:
1940: /* {{{ proto bool session_destroy(void)
1941: Destroy the current session and all data associated with it */
1942: static PHP_FUNCTION(session_destroy)
1943: {
1944: if (zend_parse_parameters_none() == FAILURE) {
1945: return;
1946: }
1947:
1948: RETURN_BOOL(php_session_destroy(TSRMLS_C) == SUCCESS);
1949: }
1950: /* }}} */
1951:
1952: /* {{{ proto void session_unset(void)
1953: Unset all registered variables */
1954: static PHP_FUNCTION(session_unset)
1955: {
1956: if (PS(session_status) == php_session_none) {
1957: RETURN_FALSE;
1958: }
1959:
1960: IF_SESSION_VARS() {
1961: HashTable *ht_sess_var;
1962:
1963: SEPARATE_ZVAL_IF_NOT_REF(&PS(http_session_vars));
1964: ht_sess_var = Z_ARRVAL_P(PS(http_session_vars));
1965:
1966: /* Clean $_SESSION. */
1967: zend_hash_clean(ht_sess_var);
1968: }
1969: }
1970: /* }}} */
1971:
1972: /* {{{ proto void session_write_close(void)
1973: Write session data and end session */
1974: static PHP_FUNCTION(session_write_close)
1975: {
1976: php_session_flush(TSRMLS_C);
1977: }
1978: /* }}} */
1979:
1980: /* {{{ proto int session_status(void)
1981: Returns the current session status */
1982: static PHP_FUNCTION(session_status)
1983: {
1984: if (zend_parse_parameters_none() == FAILURE) {
1985: return;
1986: }
1987:
1988: RETURN_LONG(PS(session_status));
1989: }
1990: /* }}} */
1991:
1992: /* {{{ proto void session_register_shutdown(void)
1993: Registers session_write_close() as a shutdown function */
1994: static PHP_FUNCTION(session_register_shutdown)
1995: {
1996: php_shutdown_function_entry shutdown_function_entry;
1997: zval *callback;
1998:
1999: /* This function is registered itself as a shutdown function by
2000: * session_set_save_handler($obj). The reason we now register another
2001: * shutdown function is in case the user registered their own shutdown
2002: * function after calling session_set_save_handler(), which expects
2003: * the session still to be available.
2004: */
2005:
2006: shutdown_function_entry.arg_count = 1;
2007: shutdown_function_entry.arguments = (zval **) safe_emalloc(sizeof(zval *), 1, 0);
2008:
2009: MAKE_STD_ZVAL(callback);
2010: ZVAL_STRING(callback, "session_write_close", 1);
2011: shutdown_function_entry.arguments[0] = callback;
2012:
2013: if (!append_user_shutdown_function(shutdown_function_entry TSRMLS_CC)) {
2014: zval_ptr_dtor(&callback);
2015: efree(shutdown_function_entry.arguments);
2016:
2017: /* Unable to register shutdown function, presumably because of lack
2018: * of memory, so flush the session now. It would be done in rshutdown
2019: * anyway but the handler will have had it's dtor called by then.
2020: * If the user does have a later shutdown function which needs the
2021: * session then tough luck.
2022: */
2023: php_session_flush(TSRMLS_C);
2024: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to register session flush function");
2025: }
2026: }
2027: /* }}} */
2028:
2029: /* {{{ arginfo */
2030: ZEND_BEGIN_ARG_INFO_EX(arginfo_session_name, 0, 0, 0)
2031: ZEND_ARG_INFO(0, name)
2032: ZEND_END_ARG_INFO()
2033:
2034: ZEND_BEGIN_ARG_INFO_EX(arginfo_session_module_name, 0, 0, 0)
2035: ZEND_ARG_INFO(0, module)
2036: ZEND_END_ARG_INFO()
2037:
2038: ZEND_BEGIN_ARG_INFO_EX(arginfo_session_save_path, 0, 0, 0)
2039: ZEND_ARG_INFO(0, path)
2040: ZEND_END_ARG_INFO()
2041:
2042: ZEND_BEGIN_ARG_INFO_EX(arginfo_session_id, 0, 0, 0)
2043: ZEND_ARG_INFO(0, id)
2044: ZEND_END_ARG_INFO()
2045:
2046: ZEND_BEGIN_ARG_INFO_EX(arginfo_session_regenerate_id, 0, 0, 0)
2047: ZEND_ARG_INFO(0, delete_old_session)
2048: ZEND_END_ARG_INFO()
2049:
2050: ZEND_BEGIN_ARG_INFO_EX(arginfo_session_decode, 0, 0, 1)
2051: ZEND_ARG_INFO(0, data)
2052: ZEND_END_ARG_INFO()
2053:
2054: ZEND_BEGIN_ARG_INFO(arginfo_session_void, 0)
2055: ZEND_END_ARG_INFO()
2056:
2057: ZEND_BEGIN_ARG_INFO_EX(arginfo_session_set_save_handler, 0, 0, 6)
2058: ZEND_ARG_INFO(0, open)
2059: ZEND_ARG_INFO(0, close)
2060: ZEND_ARG_INFO(0, read)
2061: ZEND_ARG_INFO(0, write)
2062: ZEND_ARG_INFO(0, destroy)
2063: ZEND_ARG_INFO(0, gc)
2064: ZEND_END_ARG_INFO()
2065:
2066: ZEND_BEGIN_ARG_INFO_EX(arginfo_session_cache_limiter, 0, 0, 0)
2067: ZEND_ARG_INFO(0, cache_limiter)
2068: ZEND_END_ARG_INFO()
2069:
2070: ZEND_BEGIN_ARG_INFO_EX(arginfo_session_cache_expire, 0, 0, 0)
2071: ZEND_ARG_INFO(0, new_cache_expire)
2072: ZEND_END_ARG_INFO()
2073:
2074: ZEND_BEGIN_ARG_INFO_EX(arginfo_session_set_cookie_params, 0, 0, 1)
2075: ZEND_ARG_INFO(0, lifetime)
2076: ZEND_ARG_INFO(0, path)
2077: ZEND_ARG_INFO(0, domain)
2078: ZEND_ARG_INFO(0, secure)
2079: ZEND_ARG_INFO(0, httponly)
2080: ZEND_END_ARG_INFO()
2081:
2082: ZEND_BEGIN_ARG_INFO(arginfo_session_class_open, 0)
2083: ZEND_ARG_INFO(0, save_path)
2084: ZEND_ARG_INFO(0, session_name)
2085: ZEND_END_ARG_INFO()
2086:
2087: ZEND_BEGIN_ARG_INFO(arginfo_session_class_close, 0)
2088: ZEND_END_ARG_INFO()
2089:
2090: ZEND_BEGIN_ARG_INFO(arginfo_session_class_read, 0)
2091: ZEND_ARG_INFO(0, key)
2092: ZEND_END_ARG_INFO()
2093:
2094: ZEND_BEGIN_ARG_INFO(arginfo_session_class_write, 0)
2095: ZEND_ARG_INFO(0, key)
2096: ZEND_ARG_INFO(0, val)
2097: ZEND_END_ARG_INFO()
2098:
2099: ZEND_BEGIN_ARG_INFO(arginfo_session_class_destroy, 0)
2100: ZEND_ARG_INFO(0, key)
2101: ZEND_END_ARG_INFO()
2102:
2103: ZEND_BEGIN_ARG_INFO(arginfo_session_class_gc, 0)
2104: ZEND_ARG_INFO(0, maxlifetime)
2105: ZEND_END_ARG_INFO()
2106: /* }}} */
2107:
2108: /* {{{ session_functions[]
2109: */
2110: static const zend_function_entry session_functions[] = {
2111: PHP_FE(session_name, arginfo_session_name)
2112: PHP_FE(session_module_name, arginfo_session_module_name)
2113: PHP_FE(session_save_path, arginfo_session_save_path)
2114: PHP_FE(session_id, arginfo_session_id)
2115: PHP_FE(session_regenerate_id, arginfo_session_regenerate_id)
2116: PHP_FE(session_decode, arginfo_session_decode)
2117: PHP_FE(session_encode, arginfo_session_void)
2118: PHP_FE(session_start, arginfo_session_void)
2119: PHP_FE(session_destroy, arginfo_session_void)
2120: PHP_FE(session_unset, arginfo_session_void)
2121: PHP_FE(session_set_save_handler, arginfo_session_set_save_handler)
2122: PHP_FE(session_cache_limiter, arginfo_session_cache_limiter)
2123: PHP_FE(session_cache_expire, arginfo_session_cache_expire)
2124: PHP_FE(session_set_cookie_params, arginfo_session_set_cookie_params)
2125: PHP_FE(session_get_cookie_params, arginfo_session_void)
2126: PHP_FE(session_write_close, arginfo_session_void)
2127: PHP_FE(session_status, arginfo_session_void)
2128: PHP_FE(session_register_shutdown, arginfo_session_void)
2129: PHP_FALIAS(session_commit, session_write_close, arginfo_session_void)
2130: PHP_FE_END
2131: };
2132: /* }}} */
2133:
2134: /* {{{ SessionHandlerInterface functions[]
2135: */
2136: static const zend_function_entry php_session_iface_functions[] = {
2137: PHP_ABSTRACT_ME(SessionHandlerInterface, open, arginfo_session_class_open)
2138: PHP_ABSTRACT_ME(SessionHandlerInterface, close, arginfo_session_class_close)
2139: PHP_ABSTRACT_ME(SessionHandlerInterface, read, arginfo_session_class_read)
2140: PHP_ABSTRACT_ME(SessionHandlerInterface, write, arginfo_session_class_write)
2141: PHP_ABSTRACT_ME(SessionHandlerInterface, destroy, arginfo_session_class_destroy)
2142: PHP_ABSTRACT_ME(SessionHandlerInterface, gc, arginfo_session_class_gc)
2143: { NULL, NULL, NULL }
2144: };
2145: /* }}} */
2146:
2147: /* {{{ SessionHandler functions[]
2148: */
2149: static const zend_function_entry php_session_class_functions[] = {
2150: PHP_ME(SessionHandler, open, arginfo_session_class_open, ZEND_ACC_PUBLIC)
2151: PHP_ME(SessionHandler, close, arginfo_session_class_close, ZEND_ACC_PUBLIC)
2152: PHP_ME(SessionHandler, read, arginfo_session_class_read, ZEND_ACC_PUBLIC)
2153: PHP_ME(SessionHandler, write, arginfo_session_class_write, ZEND_ACC_PUBLIC)
2154: PHP_ME(SessionHandler, destroy, arginfo_session_class_destroy, ZEND_ACC_PUBLIC)
2155: PHP_ME(SessionHandler, gc, arginfo_session_class_gc, ZEND_ACC_PUBLIC)
2156: { NULL, NULL, NULL }
2157: };
2158: /* }}} */
2159:
2160: /* ********************************
2161: * Module Setup and Destruction *
2162: ******************************** */
2163:
2164: static int php_rinit_session(zend_bool auto_start TSRMLS_DC) /* {{{ */
2165: {
2166: php_rinit_session_globals(TSRMLS_C);
2167:
2168: if (PS(mod) == NULL) {
2169: char *value;
2170:
2171: value = zend_ini_string("session.save_handler", sizeof("session.save_handler"), 0);
2172: if (value) {
2173: PS(mod) = _php_find_ps_module(value TSRMLS_CC);
2174: }
2175: }
2176:
2177: if (PS(serializer) == NULL) {
2178: char *value;
2179:
2180: value = zend_ini_string("session.serialize_handler", sizeof("session.serialize_handler"), 0);
2181: if (value) {
2182: PS(serializer) = _php_find_ps_serializer(value TSRMLS_CC);
2183: }
2184: }
2185:
2186: if (PS(mod) == NULL || PS(serializer) == NULL) {
2187: /* current status is unusable */
2188: PS(session_status) = php_session_disabled;
2189: return SUCCESS;
2190: }
2191:
2192: if (auto_start) {
2193: php_session_start(TSRMLS_C);
2194: }
2195:
2196: return SUCCESS;
2197: } /* }}} */
2198:
2199: static PHP_RINIT_FUNCTION(session) /* {{{ */
2200: {
2201: return php_rinit_session(PS(auto_start) TSRMLS_CC);
2202: }
2203: /* }}} */
2204:
2205: static PHP_RSHUTDOWN_FUNCTION(session) /* {{{ */
2206: {
2207: int i;
2208:
2209: zend_try {
2210: php_session_flush(TSRMLS_C);
2211: } zend_end_try();
2212: php_rshutdown_session_globals(TSRMLS_C);
2213:
2214: /* this should NOT be done in php_rshutdown_session_globals() */
2215: for (i = 0; i < 6; i++) {
2216: if (PS(mod_user_names).names[i] != NULL) {
2217: zval_ptr_dtor(&PS(mod_user_names).names[i]);
2218: PS(mod_user_names).names[i] = NULL;
2219: }
2220: }
2221:
2222: return SUCCESS;
2223: }
2224: /* }}} */
2225:
2226: static PHP_GINIT_FUNCTION(ps) /* {{{ */
2227: {
2228: int i;
2229:
2230: ps_globals->save_path = NULL;
2231: ps_globals->session_name = NULL;
2232: ps_globals->id = NULL;
2233: ps_globals->mod = NULL;
2234: ps_globals->serializer = NULL;
2235: ps_globals->mod_data = NULL;
2236: ps_globals->session_status = php_session_none;
2237: ps_globals->default_mod = NULL;
2238: ps_globals->mod_user_implemented = 0;
2239: ps_globals->mod_user_is_open = 0;
2240: for (i = 0; i < 6; i++) {
2241: ps_globals->mod_user_names.names[i] = NULL;
2242: }
2243: ps_globals->http_session_vars = NULL;
2244: }
2245: /* }}} */
2246:
2247: static PHP_MINIT_FUNCTION(session) /* {{{ */
2248: {
2249: zend_class_entry ce;
2250:
2251: zend_register_auto_global("_SESSION", sizeof("_SESSION")-1, 0, NULL TSRMLS_CC);
2252:
2253: PS(module_number) = module_number; /* if we really need this var we need to init it in zts mode as well! */
2254:
2255: PS(session_status) = php_session_none;
2256: REGISTER_INI_ENTRIES();
2257:
2258: #ifdef HAVE_LIBMM
2259: PHP_MINIT(ps_mm) (INIT_FUNC_ARGS_PASSTHRU);
2260: #endif
2261: php_session_rfc1867_orig_callback = php_rfc1867_callback;
2262: php_rfc1867_callback = php_session_rfc1867_callback;
2263:
2264: /* Register interface */
2265: INIT_CLASS_ENTRY(ce, PS_IFACE_NAME, php_session_iface_functions);
2266: php_session_iface_entry = zend_register_internal_class(&ce TSRMLS_CC);
2267: php_session_iface_entry->ce_flags |= ZEND_ACC_INTERFACE;
2268:
2269: /* Register base class */
2270: INIT_CLASS_ENTRY(ce, PS_CLASS_NAME, php_session_class_functions);
2271: php_session_class_entry = zend_register_internal_class(&ce TSRMLS_CC);
2272: zend_class_implements(php_session_class_entry TSRMLS_CC, 1, php_session_iface_entry);
2273:
2274: REGISTER_LONG_CONSTANT("PHP_SESSION_DISABLED", php_session_disabled, CONST_CS | CONST_PERSISTENT);
2275: REGISTER_LONG_CONSTANT("PHP_SESSION_NONE", php_session_none, CONST_CS | CONST_PERSISTENT);
2276: REGISTER_LONG_CONSTANT("PHP_SESSION_ACTIVE", php_session_active, CONST_CS | CONST_PERSISTENT);
2277:
2278: return SUCCESS;
2279: }
2280: /* }}} */
2281:
2282: static PHP_MSHUTDOWN_FUNCTION(session) /* {{{ */
2283: {
2284: UNREGISTER_INI_ENTRIES();
2285:
2286: #ifdef HAVE_LIBMM
2287: PHP_MSHUTDOWN(ps_mm) (SHUTDOWN_FUNC_ARGS_PASSTHRU);
2288: #endif
2289:
2290: /* reset rfc1867 callbacks */
2291: php_session_rfc1867_orig_callback = NULL;
2292: if (php_rfc1867_callback == php_session_rfc1867_callback) {
2293: php_rfc1867_callback = NULL;
2294: }
2295:
2296: ps_serializers[PREDEFINED_SERIALIZERS].name = NULL;
2297: memset(&ps_modules[PREDEFINED_MODULES], 0, (MAX_MODULES-PREDEFINED_MODULES)*sizeof(ps_module *));
2298:
2299: return SUCCESS;
2300: }
2301: /* }}} */
2302:
2303: static PHP_MINFO_FUNCTION(session) /* {{{ */
2304: {
2305: ps_module **mod;
2306: ps_serializer *ser;
2307: smart_str save_handlers = {0};
2308: smart_str ser_handlers = {0};
2309: int i;
2310:
2311: /* Get save handlers */
2312: for (i = 0, mod = ps_modules; i < MAX_MODULES; i++, mod++) {
2313: if (*mod && (*mod)->s_name) {
2314: smart_str_appends(&save_handlers, (*mod)->s_name);
2315: smart_str_appendc(&save_handlers, ' ');
2316: }
2317: }
2318:
2319: /* Get serializer handlers */
2320: for (i = 0, ser = ps_serializers; i < MAX_SERIALIZERS; i++, ser++) {
2321: if (ser && ser->name) {
2322: smart_str_appends(&ser_handlers, ser->name);
2323: smart_str_appendc(&ser_handlers, ' ');
2324: }
2325: }
2326:
2327: php_info_print_table_start();
2328: php_info_print_table_row(2, "Session Support", "enabled" );
2329:
2330: if (save_handlers.c) {
2331: smart_str_0(&save_handlers);
2332: php_info_print_table_row(2, "Registered save handlers", save_handlers.c);
2333: smart_str_free(&save_handlers);
2334: } else {
2335: php_info_print_table_row(2, "Registered save handlers", "none");
2336: }
2337:
2338: if (ser_handlers.c) {
2339: smart_str_0(&ser_handlers);
2340: php_info_print_table_row(2, "Registered serializer handlers", ser_handlers.c);
2341: smart_str_free(&ser_handlers);
2342: } else {
2343: php_info_print_table_row(2, "Registered serializer handlers", "none");
2344: }
2345:
2346: php_info_print_table_end();
2347:
2348: DISPLAY_INI_ENTRIES();
2349: }
2350: /* }}} */
2351:
2352: static const zend_module_dep session_deps[] = { /* {{{ */
2353: ZEND_MOD_OPTIONAL("hash")
2354: ZEND_MOD_REQUIRED("spl")
2355: ZEND_MOD_END
2356: };
2357: /* }}} */
2358:
2359: /* ************************
2360: * Upload hook handling *
2361: ************************ */
2362:
2363: static zend_bool early_find_sid_in(zval *dest, int where, php_session_rfc1867_progress *progress TSRMLS_DC) /* {{{ */
2364: {
2365: zval **ppid;
2366:
2367: if (!PG(http_globals)[where]) {
2368: return 0;
2369: }
2370:
2371: if (zend_hash_find(Z_ARRVAL_P(PG(http_globals)[where]), PS(session_name), progress->sname_len+1, (void **)&ppid) == SUCCESS
2372: && Z_TYPE_PP(ppid) == IS_STRING) {
2373: zval_dtor(dest);
2374: ZVAL_ZVAL(dest, *ppid, 1, 0);
2375: return 1;
2376: }
2377:
2378: return 0;
2379: } /* }}} */
2380:
2381: static void php_session_rfc1867_early_find_sid(php_session_rfc1867_progress *progress TSRMLS_DC) /* {{{ */
2382: {
2383:
2384: if (PS(use_cookies)) {
2385: sapi_module.treat_data(PARSE_COOKIE, NULL, NULL TSRMLS_CC);
2386: if (early_find_sid_in(&progress->sid, TRACK_VARS_COOKIE, progress TSRMLS_CC)) {
2387: progress->apply_trans_sid = 0;
2388: return;
2389: }
2390: }
2391: if (PS(use_only_cookies)) {
2392: return;
2393: }
2394: sapi_module.treat_data(PARSE_GET, NULL, NULL TSRMLS_CC);
2395: early_find_sid_in(&progress->sid, TRACK_VARS_GET, progress TSRMLS_CC);
2396: } /* }}} */
2397:
2398: static zend_bool php_check_cancel_upload(php_session_rfc1867_progress *progress TSRMLS_DC) /* {{{ */
2399: {
2400: zval **progress_ary, **cancel_upload;
2401:
2402: if (zend_symtable_find(Z_ARRVAL_P(PS(http_session_vars)), progress->key.c, progress->key.len+1, (void**)&progress_ary) != SUCCESS) {
2403: return 0;
2404: }
2405: if (Z_TYPE_PP(progress_ary) != IS_ARRAY) {
2406: return 0;
2407: }
2408: if (zend_hash_find(Z_ARRVAL_PP(progress_ary), "cancel_upload", sizeof("cancel_upload"), (void**)&cancel_upload) != SUCCESS) {
2409: return 0;
2410: }
2411: return Z_TYPE_PP(cancel_upload) == IS_BOOL && Z_LVAL_PP(cancel_upload);
2412: } /* }}} */
2413:
2414: static void php_session_rfc1867_update(php_session_rfc1867_progress *progress, int force_update TSRMLS_DC) /* {{{ */
2415: {
2416: if (!force_update) {
2417: if (Z_LVAL_P(progress->post_bytes_processed) < progress->next_update) {
2418: return;
2419: }
2420: #ifdef HAVE_GETTIMEOFDAY
2421: if (PS(rfc1867_min_freq) > 0.0) {
2422: struct timeval tv = {0};
2423: double dtv;
2424: gettimeofday(&tv, NULL);
2425: dtv = (double) tv.tv_sec + tv.tv_usec / 1000000.0;
2426: if (dtv < progress->next_update_time) {
2427: return;
2428: }
2429: progress->next_update_time = dtv + PS(rfc1867_min_freq);
2430: }
2431: #endif
2432: progress->next_update = Z_LVAL_P(progress->post_bytes_processed) + progress->update_step;
2433: }
2434:
2435: php_session_initialize(TSRMLS_C);
2436: PS(session_status) = php_session_active;
2437: IF_SESSION_VARS() {
2438: progress->cancel_upload |= php_check_cancel_upload(progress TSRMLS_CC);
2439: ZEND_SET_SYMBOL_WITH_LENGTH(Z_ARRVAL_P(PS(http_session_vars)), progress->key.c, progress->key.len+1, progress->data, 2, 0);
2440: }
2441: php_session_flush(TSRMLS_C);
2442: } /* }}} */
2443:
2444: static void php_session_rfc1867_cleanup(php_session_rfc1867_progress *progress TSRMLS_DC) /* {{{ */
2445: {
2446: php_session_initialize(TSRMLS_C);
2447: PS(session_status) = php_session_active;
2448: IF_SESSION_VARS() {
2449: zend_hash_del(Z_ARRVAL_P(PS(http_session_vars)), progress->key.c, progress->key.len+1);
2450: }
2451: php_session_flush(TSRMLS_C);
2452: } /* }}} */
2453:
2454: static int php_session_rfc1867_callback(unsigned int event, void *event_data, void **extra TSRMLS_DC) /* {{{ */
2455: {
2456: php_session_rfc1867_progress *progress;
2457: int retval = SUCCESS;
2458:
2459: if (php_session_rfc1867_orig_callback) {
2460: retval = php_session_rfc1867_orig_callback(event, event_data, extra TSRMLS_CC);
2461: }
2462: if (!PS(rfc1867_enabled)) {
2463: return retval;
2464: }
2465:
2466: progress = PS(rfc1867_progress);
2467:
2468: switch(event) {
2469: case MULTIPART_EVENT_START: {
2470: multipart_event_start *data = (multipart_event_start *) event_data;
2471: progress = ecalloc(1, sizeof(php_session_rfc1867_progress));
2472: progress->content_length = data->content_length;
2473: progress->sname_len = strlen(PS(session_name));
2474: PS(rfc1867_progress) = progress;
2475: }
2476: break;
2477: case MULTIPART_EVENT_FORMDATA: {
2478: multipart_event_formdata *data = (multipart_event_formdata *) event_data;
2479: size_t value_len;
2480:
2481: if (Z_TYPE(progress->sid) && progress->key.c) {
2482: break;
2483: }
2484:
2485: /* orig callback may have modified *data->newlength */
2486: if (data->newlength) {
2487: value_len = *data->newlength;
2488: } else {
2489: value_len = data->length;
2490: }
2491:
2492: if (data->name && data->value && value_len) {
2493: size_t name_len = strlen(data->name);
2494:
2495: if (name_len == progress->sname_len && memcmp(data->name, PS(session_name), name_len) == 0) {
2496: zval_dtor(&progress->sid);
2497: ZVAL_STRINGL(&progress->sid, (*data->value), value_len, 1);
2498:
2499: } else if (name_len == PS(rfc1867_name).len && memcmp(data->name, PS(rfc1867_name).c, name_len) == 0) {
2500: smart_str_free(&progress->key);
2501: smart_str_appendl(&progress->key, PS(rfc1867_prefix).c, PS(rfc1867_prefix).len);
2502: smart_str_appendl(&progress->key, *data->value, value_len);
2503: smart_str_0(&progress->key);
2504:
2505: progress->apply_trans_sid = PS(use_trans_sid);
2506: php_session_rfc1867_early_find_sid(progress TSRMLS_CC);
2507: }
2508: }
2509: }
2510: break;
2511: case MULTIPART_EVENT_FILE_START: {
2512: multipart_event_file_start *data = (multipart_event_file_start *) event_data;
2513:
2514: /* Do nothing when $_POST["PHP_SESSION_UPLOAD_PROGRESS"] is not set
2515: * or when we have no session id */
2516: if (!Z_TYPE(progress->sid) || !progress->key.c) {
2517: break;
2518: }
2519:
2520: /* First FILE_START event, initializing data */
2521: if (!progress->data) {
2522:
2523: if (PS(rfc1867_freq) >= 0) {
2524: progress->update_step = PS(rfc1867_freq);
2525: } else if (PS(rfc1867_freq) < 0) { /* % of total size */
2526: progress->update_step = progress->content_length * -PS(rfc1867_freq) / 100;
2527: }
2528: progress->next_update = 0;
2529: progress->next_update_time = 0.0;
2530:
2531: ALLOC_INIT_ZVAL(progress->data);
2532: array_init(progress->data);
2533:
2534: ALLOC_INIT_ZVAL(progress->post_bytes_processed);
2535: ZVAL_LONG(progress->post_bytes_processed, data->post_bytes_processed);
2536:
2537: ALLOC_INIT_ZVAL(progress->files);
2538: array_init(progress->files);
2539:
2540: add_assoc_long_ex(progress->data, "start_time", sizeof("start_time"), (long)sapi_get_request_time(TSRMLS_C));
2541: add_assoc_long_ex(progress->data, "content_length", sizeof("content_length"), progress->content_length);
2542: add_assoc_zval_ex(progress->data, "bytes_processed", sizeof("bytes_processed"), progress->post_bytes_processed);
2543: add_assoc_bool_ex(progress->data, "done", sizeof("done"), 0);
2544: add_assoc_zval_ex(progress->data, "files", sizeof("files"), progress->files);
2545:
2546: php_rinit_session(0 TSRMLS_CC);
2547: PS(id) = estrndup(Z_STRVAL(progress->sid), Z_STRLEN(progress->sid));
2548: PS(apply_trans_sid) = progress->apply_trans_sid;
2549: PS(send_cookie) = 0;
2550: }
2551:
2552: ALLOC_INIT_ZVAL(progress->current_file);
2553: array_init(progress->current_file);
2554:
2555: ALLOC_INIT_ZVAL(progress->current_file_bytes_processed);
2556: ZVAL_LONG(progress->current_file_bytes_processed, 0);
2557:
2558: /* Each uploaded file has its own array. Trying to make it close to $_FILES entries. */
2559: add_assoc_string_ex(progress->current_file, "field_name", sizeof("field_name"), data->name, 1);
2560: add_assoc_string_ex(progress->current_file, "name", sizeof("name"), *data->filename, 1);
2561: add_assoc_null_ex(progress->current_file, "tmp_name", sizeof("tmp_name"));
2562: add_assoc_long_ex(progress->current_file, "error", sizeof("error"), 0);
2563:
2564: add_assoc_bool_ex(progress->current_file, "done", sizeof("done"), 0);
2565: add_assoc_long_ex(progress->current_file, "start_time", sizeof("start_time"), (long)time(NULL));
2566: add_assoc_zval_ex(progress->current_file, "bytes_processed", sizeof("bytes_processed"), progress->current_file_bytes_processed);
2567:
2568: add_next_index_zval(progress->files, progress->current_file);
2569:
2570: Z_LVAL_P(progress->post_bytes_processed) = data->post_bytes_processed;
2571:
2572: php_session_rfc1867_update(progress, 0 TSRMLS_CC);
2573: }
2574: break;
2575: case MULTIPART_EVENT_FILE_DATA: {
2576: multipart_event_file_data *data = (multipart_event_file_data *) event_data;
2577:
2578: if (!Z_TYPE(progress->sid) || !progress->key.c) {
2579: break;
2580: }
2581:
2582: Z_LVAL_P(progress->current_file_bytes_processed) = data->offset + data->length;
2583: Z_LVAL_P(progress->post_bytes_processed) = data->post_bytes_processed;
2584:
2585: php_session_rfc1867_update(progress, 0 TSRMLS_CC);
2586: }
2587: break;
2588: case MULTIPART_EVENT_FILE_END: {
2589: multipart_event_file_end *data = (multipart_event_file_end *) event_data;
2590:
2591: if (!Z_TYPE(progress->sid) || !progress->key.c) {
2592: break;
2593: }
2594:
2595: if (data->temp_filename) {
2596: add_assoc_string_ex(progress->current_file, "tmp_name", sizeof("tmp_name"), data->temp_filename, 1);
2597: }
2598: add_assoc_long_ex(progress->current_file, "error", sizeof("error"), data->cancel_upload);
2599: add_assoc_bool_ex(progress->current_file, "done", sizeof("done"), 1);
2600:
2601: Z_LVAL_P(progress->post_bytes_processed) = data->post_bytes_processed;
2602:
2603: php_session_rfc1867_update(progress, 0 TSRMLS_CC);
2604: }
2605: break;
2606: case MULTIPART_EVENT_END: {
2607: multipart_event_end *data = (multipart_event_end *) event_data;
2608:
2609: if (Z_TYPE(progress->sid) && progress->key.c) {
2610: if (PS(rfc1867_cleanup)) {
2611: php_session_rfc1867_cleanup(progress TSRMLS_CC);
2612: } else {
2613: add_assoc_bool_ex(progress->data, "done", sizeof("done"), 1);
2614: Z_LVAL_P(progress->post_bytes_processed) = data->post_bytes_processed;
2615: php_session_rfc1867_update(progress, 1 TSRMLS_CC);
2616: }
2617: php_rshutdown_session_globals(TSRMLS_C);
2618: }
2619:
2620: if (progress->data) {
2621: zval_ptr_dtor(&progress->data);
2622: }
2623: zval_dtor(&progress->sid);
2624: smart_str_free(&progress->key);
2625: efree(progress);
2626: progress = NULL;
2627: PS(rfc1867_progress) = NULL;
2628: }
2629: break;
2630: }
2631:
2632: if (progress && progress->cancel_upload) {
2633: return FAILURE;
2634: }
2635: return retval;
2636:
2637: } /* }}} */
2638:
2639: zend_module_entry session_module_entry = {
2640: STANDARD_MODULE_HEADER_EX,
2641: NULL,
2642: session_deps,
2643: "session",
2644: session_functions,
2645: PHP_MINIT(session), PHP_MSHUTDOWN(session),
2646: PHP_RINIT(session), PHP_RSHUTDOWN(session),
2647: PHP_MINFO(session),
2648: NO_VERSION_YET,
2649: PHP_MODULE_GLOBALS(ps),
2650: PHP_GINIT(ps),
2651: NULL,
2652: NULL,
2653: STANDARD_MODULE_PROPERTIES_EX
2654: };
2655:
2656: #ifdef COMPILE_DL_SESSION
2657: ZEND_GET_MODULE(session)
2658: #endif
2659:
2660: /*
2661: * Local variables:
2662: * tab-width: 4
2663: * c-basic-offset: 4
2664: * End:
2665: * vim600: noet sw=4 ts=4 fdm=marker
2666: * vim<600: sw=4 ts=4
2667: */
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