forked from php/php-src
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathftp_fopen_wrapper.c
1181 lines (1007 loc) · 31.5 KB
/
ftp_fopen_wrapper.c
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
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
+----------------------------------------------------------------------+
| Copyright (c) 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: |
| https://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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Rasmus Lerdorf <[email protected]> |
| Jim Winstead <[email protected]> |
| Hartmut Holzgraefe <[email protected]> |
| Sara Golemon <[email protected]> |
+----------------------------------------------------------------------+
*/
#include "php.h"
#include "php_globals.h"
#include "php_network.h"
#include "php_ini.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#ifdef PHP_WIN32
#include <winsock2.h>
#define O_RDONLY _O_RDONLY
#include "win32/param.h"
#else
#include <sys/param.h>
#endif
#include "php_standard.h"
#include <sys/types.h>
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef PHP_WIN32
#include <winsock2.h>
#else
#include <netinet/in.h>
#include <netdb.h>
#if HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#endif
#if defined(PHP_WIN32) || defined(__riscos__)
#undef AF_UNIX
#endif
#if defined(AF_UNIX)
#include <sys/un.h>
#endif
#include "php_fopen_wrappers.h"
#define FTPS_ENCRYPT_DATA 1
#define GET_FTP_RESULT(stream) get_ftp_result((stream), tmp_line, sizeof(tmp_line))
typedef struct _php_ftp_dirstream_data {
php_stream *datastream;
php_stream *controlstream;
php_stream *dirstream;
} php_ftp_dirstream_data;
/* {{{ get_ftp_result */
static inline int get_ftp_result(php_stream *stream, char *buffer, size_t buffer_size)
{
buffer[0] = '\0'; /* in case read fails to read anything */
while (php_stream_gets(stream, buffer, buffer_size-1) &&
!(isdigit((int) buffer[0]) && isdigit((int) buffer[1]) &&
isdigit((int) buffer[2]) && buffer[3] == ' '));
return strtol(buffer, NULL, 10);
}
/* }}} */
/* {{{ php_stream_ftp_stream_stat */
static int php_stream_ftp_stream_stat(php_stream_wrapper *wrapper, php_stream *stream, php_stream_statbuf *ssb)
{
/* For now, we return with a failure code to prevent the underlying
* file's details from being used instead. */
return -1;
}
/* }}} */
/* {{{ php_stream_ftp_stream_close */
static int php_stream_ftp_stream_close(php_stream_wrapper *wrapper, php_stream *stream)
{
php_stream *controlstream = stream->wrapperthis;
int ret = 0;
if (controlstream) {
if (strpbrk(stream->mode, "wa+")) {
char tmp_line[512];
int result;
/* For write modes close data stream first to signal EOF to server */
result = GET_FTP_RESULT(controlstream);
if (result != 226 && result != 250) {
php_error_docref(NULL, E_WARNING, "FTP server error %d:%s", result, tmp_line);
ret = EOF;
}
}
php_stream_write_string(controlstream, "QUIT\r\n");
php_stream_close(controlstream);
stream->wrapperthis = NULL;
}
return ret;
}
/* }}} */
/* {{{ php_ftp_fopen_connect */
static php_stream *php_ftp_fopen_connect(php_stream_wrapper *wrapper, const char *path, const char *mode, int options,
zend_string **opened_path, php_stream_context *context, php_stream **preuseid,
php_url **presource, int *puse_ssl, int *puse_ssl_on_data)
{
php_stream *stream = NULL, *reuseid = NULL;
php_url *resource = NULL;
int result, use_ssl, use_ssl_on_data = 0;
char tmp_line[512];
char *transport;
int transport_len;
resource = php_url_parse(path);
if (resource == NULL || resource->path == NULL) {
if (resource && presource) {
*presource = resource;
}
return NULL;
}
use_ssl = resource->scheme && (ZSTR_LEN(resource->scheme) > 3) && ZSTR_VAL(resource->scheme)[3] == 's';
/* use port 21 if one wasn't specified */
if (resource->port == 0)
resource->port = 21;
transport_len = (int)spprintf(&transport, 0, "tcp://%s:%d", ZSTR_VAL(resource->host), resource->port);
stream = php_stream_xport_create(transport, transport_len, REPORT_ERRORS, STREAM_XPORT_CLIENT | STREAM_XPORT_CONNECT, NULL, NULL, context, NULL, NULL);
efree(transport);
if (stream == NULL) {
result = 0; /* silence */
goto connect_errexit;
}
php_stream_context_set(stream, context);
php_stream_notify_info(context, PHP_STREAM_NOTIFY_CONNECT, NULL, 0);
/* Start talking to ftp server */
result = GET_FTP_RESULT(stream);
if (result > 299 || result < 200) {
php_stream_notify_error(context, PHP_STREAM_NOTIFY_FAILURE, tmp_line, result);
goto connect_errexit;
}
if (use_ssl) {
/* send the AUTH TLS request name */
php_stream_write_string(stream, "AUTH TLS\r\n");
/* get the response */
result = GET_FTP_RESULT(stream);
if (result != 234) {
/* AUTH TLS not supported try AUTH SSL */
php_stream_write_string(stream, "AUTH SSL\r\n");
/* get the response */
result = GET_FTP_RESULT(stream);
if (result != 334) {
php_stream_wrapper_log_error(wrapper, options, "Server doesn't support FTPS.");
goto connect_errexit;
} else {
/* we must reuse the old SSL session id */
/* if we talk to an old ftpd-ssl */
reuseid = stream;
}
} else {
/* encrypt data etc */
}
}
if (use_ssl) {
if (php_stream_xport_crypto_setup(stream,
STREAM_CRYPTO_METHOD_SSLv23_CLIENT, NULL) < 0
|| php_stream_xport_crypto_enable(stream, 1) < 0) {
php_stream_wrapper_log_error(wrapper, options, "Unable to activate SSL mode");
php_stream_close(stream);
stream = NULL;
goto connect_errexit;
}
/* set PBSZ to 0 */
php_stream_write_string(stream, "PBSZ 0\r\n");
/* ignore the response */
result = GET_FTP_RESULT(stream);
/* set data connection protection level */
#if FTPS_ENCRYPT_DATA
php_stream_write_string(stream, "PROT P\r\n");
/* get the response */
result = GET_FTP_RESULT(stream);
use_ssl_on_data = (result >= 200 && result<=299) || reuseid;
#else
php_stream_write_string(stream, "PROT C\r\n");
/* get the response */
result = GET_FTP_RESULT(stream);
#endif
}
#define PHP_FTP_CNTRL_CHK(val, val_len, err_msg) { \
unsigned char *s = (unsigned char *) val, *e = (unsigned char *) s + val_len; \
while (s < e) { \
if (iscntrl(*s)) { \
php_stream_wrapper_log_error(wrapper, options, err_msg, val); \
goto connect_errexit; \
} \
s++; \
} \
}
/* send the user name */
if (resource->user != NULL) {
ZSTR_LEN(resource->user) = php_raw_url_decode(ZSTR_VAL(resource->user), ZSTR_LEN(resource->user));
PHP_FTP_CNTRL_CHK(ZSTR_VAL(resource->user), ZSTR_LEN(resource->user), "Invalid login %s")
php_stream_printf(stream, "USER %s\r\n", ZSTR_VAL(resource->user));
} else {
php_stream_write_string(stream, "USER anonymous\r\n");
}
/* get the response */
result = GET_FTP_RESULT(stream);
/* if a password is required, send it */
if (result >= 300 && result <= 399) {
php_stream_notify_info(context, PHP_STREAM_NOTIFY_AUTH_REQUIRED, tmp_line, 0);
if (resource->pass != NULL) {
ZSTR_LEN(resource->pass) = php_raw_url_decode(ZSTR_VAL(resource->pass), ZSTR_LEN(resource->pass));
PHP_FTP_CNTRL_CHK(ZSTR_VAL(resource->pass), ZSTR_LEN(resource->pass), "Invalid password %s")
php_stream_printf(stream, "PASS %s\r\n", ZSTR_VAL(resource->pass));
} else {
/* if the user has configured who they are,
send that as the password */
if (FG(from_address)) {
php_stream_printf(stream, "PASS %s\r\n", FG(from_address));
} else {
php_stream_write_string(stream, "PASS anonymous\r\n");
}
}
/* read the response */
result = GET_FTP_RESULT(stream);
if (result > 299 || result < 200) {
php_stream_notify_error(context, PHP_STREAM_NOTIFY_AUTH_RESULT, tmp_line, result);
} else {
php_stream_notify_info(context, PHP_STREAM_NOTIFY_AUTH_RESULT, tmp_line, result);
}
}
if (result > 299 || result < 200) {
goto connect_errexit;
}
if (puse_ssl) {
*puse_ssl = use_ssl;
}
if (puse_ssl_on_data) {
*puse_ssl_on_data = use_ssl_on_data;
}
if (preuseid) {
*preuseid = reuseid;
}
if (presource) {
*presource = resource;
}
return stream;
connect_errexit:
if (resource) {
php_url_free(resource);
}
if (stream) {
php_stream_close(stream);
}
return NULL;
}
/* }}} */
/* {{{ php_fopen_do_pasv */
static unsigned short php_fopen_do_pasv(php_stream *stream, char *ip, size_t ip_size, char **phoststart)
{
char tmp_line[512];
int result, i;
unsigned short portno;
char *tpath, *ttpath, *hoststart=NULL;
#ifdef HAVE_IPV6
/* We try EPSV first, needed for IPv6 and works on some IPv4 servers */
php_stream_write_string(stream, "EPSV\r\n");
result = GET_FTP_RESULT(stream);
/* check if we got a 229 response */
if (result != 229) {
#endif
/* EPSV failed, let's try PASV */
php_stream_write_string(stream, "PASV\r\n");
result = GET_FTP_RESULT(stream);
/* make sure we got a 227 response */
if (result != 227) {
return 0;
}
/* parse pasv command (129, 80, 95, 25, 13, 221) */
tpath = tmp_line;
/* skip over the "227 Some message " part */
for (tpath += 4; *tpath && !isdigit((int) *tpath); tpath++);
if (!*tpath) {
return 0;
}
/* skip over the host ip, to get the port */
hoststart = tpath;
for (i = 0; i < 4; i++) {
for (; isdigit((int) *tpath); tpath++);
if (*tpath != ',') {
return 0;
}
*tpath='.';
tpath++;
}
tpath[-1] = '\0';
memcpy(ip, hoststart, ip_size);
ip[ip_size-1] = '\0';
hoststart = ip;
/* pull out the MSB of the port */
portno = (unsigned short) strtoul(tpath, &ttpath, 10) * 256;
if (ttpath == NULL) {
/* didn't get correct response from PASV */
return 0;
}
tpath = ttpath;
if (*tpath != ',') {
return 0;
}
tpath++;
/* pull out the LSB of the port */
portno += (unsigned short) strtoul(tpath, &ttpath, 10);
#ifdef HAVE_IPV6
} else {
/* parse epsv command (|||6446|) */
for (i = 0, tpath = tmp_line + 4; *tpath; tpath++) {
if (*tpath == '|') {
i++;
if (i == 3)
break;
}
}
if (i < 3) {
return 0;
}
/* pull out the port */
portno = (unsigned short) strtoul(tpath + 1, &ttpath, 10);
}
#endif
if (ttpath == NULL) {
/* didn't get correct response from EPSV/PASV */
return 0;
}
if (phoststart) {
*phoststart = hoststart;
}
return portno;
}
/* }}} */
/* {{{ php_fopen_url_wrap_ftp */
php_stream * php_stream_url_wrap_ftp(php_stream_wrapper *wrapper, const char *path, const char *mode,
int options, zend_string **opened_path, php_stream_context *context STREAMS_DC)
{
php_stream *stream = NULL, *datastream = NULL;
php_url *resource = NULL;
char tmp_line[512];
char ip[sizeof("123.123.123.123")];
unsigned short portno;
char *hoststart = NULL;
int result = 0, use_ssl, use_ssl_on_data=0;
php_stream *reuseid=NULL;
size_t file_size = 0;
zval *tmpzval;
bool allow_overwrite = 0;
int8_t read_write = 0;
char *transport;
int transport_len;
zend_string *error_message = NULL;
tmp_line[0] = '\0';
if (strpbrk(mode, "r+")) {
read_write = 1; /* Open for reading */
}
if (strpbrk(mode, "wa+")) {
if (read_write) {
php_stream_wrapper_log_error(wrapper, options, "FTP does not support simultaneous read/write connections");
return NULL;
}
if (strchr(mode, 'a')) {
read_write = 3; /* Open for Appending */
} else {
read_write = 2; /* Open for writing */
}
}
if (!read_write) {
/* No mode specified? */
php_stream_wrapper_log_error(wrapper, options, "Unknown file open mode");
return NULL;
}
if (context &&
(tmpzval = php_stream_context_get_option(context, "ftp", "proxy")) != NULL) {
if (read_write == 1) {
/* Use http wrapper to proxy ftp request */
return php_stream_url_wrap_http(wrapper, path, mode, options, opened_path, context STREAMS_CC);
} else {
/* ftp proxy is read-only */
php_stream_wrapper_log_error(wrapper, options, "FTP proxy may only be used in read mode");
return NULL;
}
}
stream = php_ftp_fopen_connect(wrapper, path, mode, options, opened_path, context, &reuseid, &resource, &use_ssl, &use_ssl_on_data);
if (!stream) {
goto errexit;
}
/* set the connection to be binary */
php_stream_write_string(stream, "TYPE I\r\n");
result = GET_FTP_RESULT(stream);
if (result > 299 || result < 200)
goto errexit;
/* find out the size of the file (verifying it exists) */
php_stream_printf(stream, "SIZE %s\r\n", ZSTR_VAL(resource->path));
/* read the response */
result = GET_FTP_RESULT(stream);
if (read_write == 1) {
/* Read Mode */
char *sizestr;
/* when reading file, it must exist */
if (result > 299 || result < 200) {
errno = ENOENT;
goto errexit;
}
sizestr = strchr(tmp_line, ' ');
if (sizestr) {
sizestr++;
file_size = atoi(sizestr);
php_stream_notify_file_size(context, file_size, tmp_line, result);
}
} else if (read_write == 2) {
/* when writing file (but not appending), it must NOT exist, unless a context option exists which allows it */
if (context && (tmpzval = php_stream_context_get_option(context, "ftp", "overwrite")) != NULL) {
allow_overwrite = Z_LVAL_P(tmpzval) ? 1 : 0;
}
if (result <= 299 && result >= 200) {
if (allow_overwrite) {
/* Context permits overwriting file,
so we just delete whatever's there in preparation */
php_stream_printf(stream, "DELE %s\r\n", ZSTR_VAL(resource->path));
result = GET_FTP_RESULT(stream);
if (result >= 300 || result <= 199) {
goto errexit;
}
} else {
php_stream_wrapper_log_error(wrapper, options, "Remote file already exists and overwrite context option not specified");
errno = EEXIST;
goto errexit;
}
}
}
/* set up the passive connection */
portno = php_fopen_do_pasv(stream, ip, sizeof(ip), &hoststart);
if (!portno) {
goto errexit;
}
/* Send RETR/STOR command */
if (read_write == 1) {
/* set resume position if applicable */
if (context &&
(tmpzval = php_stream_context_get_option(context, "ftp", "resume_pos")) != NULL &&
Z_TYPE_P(tmpzval) == IS_LONG &&
Z_LVAL_P(tmpzval) > 0) {
php_stream_printf(stream, "REST " ZEND_LONG_FMT "\r\n", Z_LVAL_P(tmpzval));
result = GET_FTP_RESULT(stream);
if (result < 300 || result > 399) {
php_stream_wrapper_log_error(wrapper, options, "Unable to resume from offset " ZEND_LONG_FMT, Z_LVAL_P(tmpzval));
goto errexit;
}
}
/* retrieve file */
memcpy(tmp_line, "RETR", sizeof("RETR"));
} else if (read_write == 2) {
/* Write new file */
memcpy(tmp_line, "STOR", sizeof("STOR"));
} else {
/* Append */
memcpy(tmp_line, "APPE", sizeof("APPE"));
}
php_stream_printf(stream, "%s %s\r\n", tmp_line, (resource->path != NULL ? ZSTR_VAL(resource->path) : "/"));
/* open the data channel */
if (hoststart == NULL) {
hoststart = ZSTR_VAL(resource->host);
}
transport_len = (int)spprintf(&transport, 0, "tcp://%s:%d", hoststart, portno);
datastream = php_stream_xport_create(transport, transport_len, REPORT_ERRORS, STREAM_XPORT_CLIENT | STREAM_XPORT_CONNECT, NULL, NULL, context, &error_message, NULL);
efree(transport);
if (datastream == NULL) {
tmp_line[0]='\0';
goto errexit;
}
result = GET_FTP_RESULT(stream);
if (result != 150 && result != 125) {
/* Could not retrieve or send the file
* this data will only be sent to us after connection on the data port was initiated.
*/
php_stream_close(datastream);
datastream = NULL;
goto errexit;
}
php_stream_context_set(datastream, context);
php_stream_notify_progress_init(context, 0, file_size);
if (use_ssl_on_data && (php_stream_xport_crypto_setup(datastream,
STREAM_CRYPTO_METHOD_SSLv23_CLIENT, NULL) < 0 ||
php_stream_xport_crypto_enable(datastream, 1) < 0)) {
php_stream_wrapper_log_error(wrapper, options, "Unable to activate SSL mode");
php_stream_close(datastream);
datastream = NULL;
tmp_line[0]='\0';
goto errexit;
}
/* remember control stream */
datastream->wrapperthis = stream;
php_url_free(resource);
return datastream;
errexit:
if (resource) {
php_url_free(resource);
}
if (stream) {
php_stream_notify_error(context, PHP_STREAM_NOTIFY_FAILURE, tmp_line, result);
php_stream_close(stream);
}
if (tmp_line[0] != '\0')
php_stream_wrapper_log_error(wrapper, options, "FTP server reports %s", tmp_line);
if (error_message) {
php_stream_wrapper_log_error(wrapper, options, "Failed to set up data channel: %s", ZSTR_VAL(error_message));
zend_string_release(error_message);
}
return NULL;
}
/* }}} */
/* {{{ php_ftp_dirsteam_read */
static ssize_t php_ftp_dirstream_read(php_stream *stream, char *buf, size_t count)
{
php_stream_dirent *ent = (php_stream_dirent *)buf;
php_stream *innerstream;
size_t tmp_len;
zend_string *basename;
innerstream = ((php_ftp_dirstream_data *)stream->abstract)->datastream;
if (count != sizeof(php_stream_dirent)) {
return -1;
}
if (php_stream_eof(innerstream)) {
return 0;
}
if (!php_stream_get_line(innerstream, ent->d_name, sizeof(ent->d_name), &tmp_len)) {
return -1;
}
basename = php_basename(ent->d_name, tmp_len, NULL, 0);
tmp_len = MIN(sizeof(ent->d_name), ZSTR_LEN(basename) - 1);
memcpy(ent->d_name, ZSTR_VAL(basename), tmp_len);
ent->d_name[tmp_len - 1] = '\0';
zend_string_release_ex(basename, 0);
/* Trim off trailing whitespace characters */
while (tmp_len > 0 &&
(ent->d_name[tmp_len - 1] == '\n' || ent->d_name[tmp_len - 1] == '\r' ||
ent->d_name[tmp_len - 1] == '\t' || ent->d_name[tmp_len - 1] == ' ')) {
ent->d_name[--tmp_len] = '\0';
}
return sizeof(php_stream_dirent);
}
/* }}} */
/* {{{ php_ftp_dirstream_close */
static int php_ftp_dirstream_close(php_stream *stream, int close_handle)
{
php_ftp_dirstream_data *data = stream->abstract;
/* close control connection */
if (data->controlstream) {
php_stream_close(data->controlstream);
data->controlstream = NULL;
}
/* close data connection */
php_stream_close(data->datastream);
data->datastream = NULL;
efree(data);
stream->abstract = NULL;
return 0;
}
/* }}} */
/* ftp dirstreams only need to support read and close operations,
They can't be rewound because the underlying ftp stream can't be rewound. */
static const php_stream_ops php_ftp_dirstream_ops = {
NULL, /* write */
php_ftp_dirstream_read, /* read */
php_ftp_dirstream_close, /* close */
NULL, /* flush */
"ftpdir",
NULL, /* rewind */
NULL, /* cast */
NULL, /* stat */
NULL /* set option */
};
/* {{{ php_stream_ftp_opendir */
php_stream * php_stream_ftp_opendir(php_stream_wrapper *wrapper, const char *path, const char *mode, int options,
zend_string **opened_path, php_stream_context *context STREAMS_DC)
{
php_stream *stream, *reuseid, *datastream = NULL;
php_ftp_dirstream_data *dirsdata;
php_url *resource = NULL;
int result = 0, use_ssl, use_ssl_on_data = 0;
char *hoststart = NULL, tmp_line[512];
char ip[sizeof("123.123.123.123")];
unsigned short portno;
tmp_line[0] = '\0';
stream = php_ftp_fopen_connect(wrapper, path, mode, options, opened_path, context, &reuseid, &resource, &use_ssl, &use_ssl_on_data);
if (!stream) {
goto opendir_errexit;
}
/* set the connection to be ascii */
php_stream_write_string(stream, "TYPE A\r\n");
result = GET_FTP_RESULT(stream);
if (result > 299 || result < 200)
goto opendir_errexit;
// tmp_line isn't relevant after the php_fopen_do_pasv().
tmp_line[0] = '\0';
/* set up the passive connection */
portno = php_fopen_do_pasv(stream, ip, sizeof(ip), &hoststart);
if (!portno) {
goto opendir_errexit;
}
/* open the data channel */
if (hoststart == NULL) {
hoststart = ZSTR_VAL(resource->host);
}
datastream = php_stream_sock_open_host(hoststart, portno, SOCK_STREAM, 0, 0);
if (datastream == NULL) {
goto opendir_errexit;
}
php_stream_printf(stream, "NLST %s\r\n", (resource->path != NULL ? ZSTR_VAL(resource->path) : "/"));
result = GET_FTP_RESULT(stream);
if (result != 150 && result != 125) {
/* Could not retrieve or send the file
* this data will only be sent to us after connection on the data port was initiated.
*/
php_stream_close(datastream);
datastream = NULL;
goto opendir_errexit;
}
php_stream_context_set(datastream, context);
if (use_ssl_on_data && (php_stream_xport_crypto_setup(datastream,
STREAM_CRYPTO_METHOD_SSLv23_CLIENT, NULL) < 0 ||
php_stream_xport_crypto_enable(datastream, 1) < 0)) {
php_stream_wrapper_log_error(wrapper, options, "Unable to activate SSL mode");
php_stream_close(datastream);
datastream = NULL;
goto opendir_errexit;
}
php_url_free(resource);
dirsdata = emalloc(sizeof *dirsdata);
dirsdata->datastream = datastream;
dirsdata->controlstream = stream;
dirsdata->dirstream = php_stream_alloc(&php_ftp_dirstream_ops, dirsdata, 0, mode);
return dirsdata->dirstream;
opendir_errexit:
if (resource) {
php_url_free(resource);
}
if (stream) {
php_stream_notify_error(context, PHP_STREAM_NOTIFY_FAILURE, tmp_line, result);
php_stream_close(stream);
}
if (tmp_line[0] != '\0') {
php_stream_wrapper_log_error(wrapper, options, "FTP server reports %s", tmp_line);
}
return NULL;
}
/* }}} */
/* {{{ php_stream_ftp_url_stat */
static int php_stream_ftp_url_stat(php_stream_wrapper *wrapper, const char *url, int flags, php_stream_statbuf *ssb, php_stream_context *context)
{
php_stream *stream = NULL;
php_url *resource = NULL;
int result;
char tmp_line[512];
/* If ssb is NULL then someone is misbehaving */
if (!ssb) return -1;
stream = php_ftp_fopen_connect(wrapper, url, "r", 0, NULL, context, NULL, &resource, NULL, NULL);
if (!stream) {
goto stat_errexit;
}
ssb->sb.st_mode = 0644; /* FTP won't give us a valid mode, so approximate one based on being readable */
php_stream_printf(stream, "CWD %s\r\n", (resource->path != NULL ? ZSTR_VAL(resource->path) : "/")); /* If we can CWD to it, it's a directory (maybe a link, but we can't tell) */
result = GET_FTP_RESULT(stream);
if (result < 200 || result > 299) {
ssb->sb.st_mode |= S_IFREG;
} else {
ssb->sb.st_mode |= S_IFDIR | S_IXUSR | S_IXGRP | S_IXOTH;
}
php_stream_write_string(stream, "TYPE I\r\n"); /* we need this since some servers refuse to accept SIZE command in ASCII mode */
result = GET_FTP_RESULT(stream);
if(result < 200 || result > 299) {
goto stat_errexit;
}
php_stream_printf(stream, "SIZE %s\r\n", (resource->path != NULL ? ZSTR_VAL(resource->path) : "/"));
result = GET_FTP_RESULT(stream);
if (result < 200 || result > 299) {
/* Failure either means it doesn't exist
or it's a directory and this server
fails on listing directory sizes */
if (ssb->sb.st_mode & S_IFDIR) {
ssb->sb.st_size = 0;
} else {
goto stat_errexit;
}
} else {
ssb->sb.st_size = atoi(tmp_line + 4);
}
php_stream_printf(stream, "MDTM %s\r\n", (resource->path != NULL ? ZSTR_VAL(resource->path) : "/"));
result = GET_FTP_RESULT(stream);
if (result == 213) {
char *p = tmp_line + 4;
int n;
struct tm tm, tmbuf, *gmt;
time_t stamp;
while ((size_t)(p - tmp_line) < sizeof(tmp_line) && !isdigit(*p)) {
p++;
}
if ((size_t)(p - tmp_line) > sizeof(tmp_line)) {
goto mdtm_error;
}
n = sscanf(p, "%4d%2d%2d%2d%2d%2d", &tm.tm_year, &tm.tm_mon, &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec);
if (n != 6) {
goto mdtm_error;
}
tm.tm_year -= 1900;
tm.tm_mon--;
tm.tm_isdst = -1;
/* figure out the GMT offset */
stamp = time(NULL);
gmt = php_gmtime_r(&stamp, &tmbuf);
if (!gmt) {
goto mdtm_error;
}
gmt->tm_isdst = -1;
/* apply the GMT offset */
tm.tm_sec += (long)(stamp - mktime(gmt));
tm.tm_isdst = gmt->tm_isdst;
ssb->sb.st_mtime = mktime(&tm);
} else {
/* error or unsupported command */
mdtm_error:
ssb->sb.st_mtime = -1;
}
ssb->sb.st_ino = 0; /* Unknown values */
ssb->sb.st_dev = 0;
ssb->sb.st_uid = 0;
ssb->sb.st_gid = 0;
ssb->sb.st_atime = -1;
ssb->sb.st_ctime = -1;
ssb->sb.st_nlink = 1;
ssb->sb.st_rdev = -1;
#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
ssb->sb.st_blksize = 4096; /* Guess since FTP won't expose this information */
#ifdef HAVE_STRUCT_STAT_ST_BLOCKS
ssb->sb.st_blocks = (int)((4095 + ssb->sb.st_size) / ssb->sb.st_blksize); /* emulate ceil */
#endif
#endif
php_stream_close(stream);
php_url_free(resource);
return 0;
stat_errexit:
if (resource) {
php_url_free(resource);
}
if (stream) {
php_stream_close(stream);
}
return -1;
}
/* }}} */
/* {{{ php_stream_ftp_unlink */
static int php_stream_ftp_unlink(php_stream_wrapper *wrapper, const char *url, int options, php_stream_context *context)
{
php_stream *stream = NULL;
php_url *resource = NULL;
int result;
char tmp_line[512];
stream = php_ftp_fopen_connect(wrapper, url, "r", 0, NULL, context, NULL, &resource, NULL, NULL);
if (!stream) {
if (options & REPORT_ERRORS) {
php_error_docref(NULL, E_WARNING, "Unable to connect to %s", url);
}
goto unlink_errexit;
}
if (resource->path == NULL) {
if (options & REPORT_ERRORS) {
php_error_docref(NULL, E_WARNING, "Invalid path provided in %s", url);
}
goto unlink_errexit;
}
/* Attempt to delete the file */
php_stream_printf(stream, "DELE %s\r\n", (resource->path != NULL ? ZSTR_VAL(resource->path) : "/"));
result = GET_FTP_RESULT(stream);
if (result < 200 || result > 299) {
if (options & REPORT_ERRORS) {
php_error_docref(NULL, E_WARNING, "Error Deleting file: %s", tmp_line);
}
goto unlink_errexit;
}
php_url_free(resource);
php_stream_close(stream);
return 1;
unlink_errexit:
if (resource) {
php_url_free(resource);
}
if (stream) {
php_stream_close(stream);
}
return 0;
}
/* }}} */
/* {{{ php_stream_ftp_rename */
static int php_stream_ftp_rename(php_stream_wrapper *wrapper, const char *url_from, const char *url_to, int options, php_stream_context *context)
{
php_stream *stream = NULL;
php_url *resource_from = NULL, *resource_to = NULL;
int result;
char tmp_line[512];
resource_from = php_url_parse(url_from);
resource_to = php_url_parse(url_to);
/* Must be same scheme (ftp/ftp or ftps/ftps), same host, and same port
(or a 21/0 0/21 combination which is also "same")
Also require paths to/from */
if (!resource_from ||
!resource_to ||
!resource_from->scheme ||
!resource_to->scheme ||
!zend_string_equals(resource_from->scheme, resource_to->scheme) ||
!resource_from->host ||
!resource_to->host ||
!zend_string_equals(resource_from->host, resource_to->host) ||
(resource_from->port != resource_to->port &&
resource_from->port * resource_to->port != 0 &&
resource_from->port + resource_to->port != 21) ||
!resource_from->path ||
!resource_to->path) {
goto rename_errexit;
}
stream = php_ftp_fopen_connect(wrapper, url_from, "r", 0, NULL, context, NULL, NULL, NULL, NULL);
if (!stream) {
if (options & REPORT_ERRORS) {
php_error_docref(NULL, E_WARNING, "Unable to connect to %s", ZSTR_VAL(resource_from->host));
}
goto rename_errexit;
}
/* Rename FROM */
php_stream_printf(stream, "RNFR %s\r\n", (resource_from->path != NULL ? ZSTR_VAL(resource_from->path) : "/"));
result = GET_FTP_RESULT(stream);
if (result < 300 || result > 399) {
if (options & REPORT_ERRORS) {
php_error_docref(NULL, E_WARNING, "Error Renaming file: %s", tmp_line);
}
goto rename_errexit;
}
/* Rename TO */
php_stream_printf(stream, "RNTO %s\r\n", (resource_to->path != NULL ? ZSTR_VAL(resource_to->path) : "/"));
result = GET_FTP_RESULT(stream);
if (result < 200 || result > 299) {
if (options & REPORT_ERRORS) {
php_error_docref(NULL, E_WARNING, "Error Renaming file: %s", tmp_line);
}
goto rename_errexit;