Commit | Line | Data |
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79072805 | 1 | #-*-perl-*- |
a6d71656 GS |
2 | # |
3 | # This library is no longer being maintained, and is included for backward | |
4 | # compatibility with Perl 4 programs which may require it. | |
5 | # | |
6 | # In particular, this should not be used as an example of modern Perl | |
7 | # programming techniques. | |
8 | # | |
9 | # Suggested alternative: Net::FTP | |
10 | # | |
79072805 LW |
11 | # This is a wrapper to the chat2.pl routines that make life easier |
12 | # to do ftp type work. | |
13 | # Mostly by Lee McLoughlin <lmjm@doc.ic.ac.uk> | |
14 | # based on original version by Alan R. Martello <al@ee.pitt.edu> | |
15 | # And by A.Macpherson@bnr.co.uk for multi-homed hosts | |
16 | # | |
17 | # $Header: /a/swan/home/swan/staff/csg/lmjm/src/perl/mirror/RCS/ftp.pl,v 1.17 1993/04/21 10:06:54 lmjm Exp lmjm $ | |
18 | # $Log: ftp.pl,v $ | |
19 | # Revision 1.17 1993/04/21 10:06:54 lmjm | |
20 | # Send all status reports to STDERR not to STDOUT (to allow use by ftpcat). | |
21 | # Allow target file to be '-' meaning STDOUT | |
22 | # Added ftp'quote | |
23 | # | |
24 | # Revision 1.16 1993/01/28 18:59:05 lmjm | |
25 | # Allow socket arguemtns to come from main. | |
26 | # Minor cleanups - removed old comments. | |
27 | # | |
28 | # Revision 1.15 1992/11/25 21:09:30 lmjm | |
29 | # Added another REST return code. | |
30 | # | |
31 | # Revision 1.14 1992/08/12 14:33:42 lmjm | |
32 | # Fail ftp'write if out of space. | |
33 | # | |
34 | # Revision 1.13 1992/03/20 21:01:03 lmjm | |
35 | # Added in the proxy ftp code from Edwards Reed <err@cinops.xerox.com> | |
36 | # Added ftp'delete from Aaron Wohl <aw0g+@andrew.cmu.edu> | |
37 | # | |
38 | # Revision 1.12 1992/02/06 23:25:56 lmjm | |
39 | # Moved code around so can use this as a lib for both mirror and ftpmail. | |
40 | # Time out opens. In case Unix doesn't bother to. | |
41 | # | |
42 | # Revision 1.11 1991/11/27 22:05:57 lmjm | |
43 | # Match the response code number at the start of a line allowing | |
44 | # for any leading junk. | |
45 | # | |
46 | # Revision 1.10 1991/10/23 22:42:20 lmjm | |
47 | # Added better timeout code. | |
48 | # Tried to optimise file transfer | |
49 | # Moved open/close code to not leak file handles. | |
50 | # Cleaned up the alarm code. | |
51 | # Added $fatalerror to show wether the ftp link is really dead. | |
52 | # | |
53 | # Revision 1.9 1991/10/07 18:30:35 lmjm | |
54 | # Made the timeout-read code work. | |
55 | # Added restarting file gets. | |
56 | # Be more verbose if ever have to call die. | |
57 | # | |
58 | # Revision 1.8 1991/09/17 22:53:16 lmjm | |
59 | # Spot when open_data_socket fails and return a failure rather than dying. | |
60 | # | |
61 | # Revision 1.7 1991/09/12 22:40:25 lmjm | |
62 | # Added Andrew Macpherson's patches for hosts without ip forwarding. | |
63 | # | |
64 | # Revision 1.6 1991/09/06 19:53:52 lmjm | |
65 | # Relaid out the code the way I like it! | |
66 | # Changed the debuggin to produce more "appropriate" messages | |
67 | # Fixed bugs in the ordering of put and dir listing. | |
68 | # Allow for hash printing when getting files (a la ftp). | |
69 | # Added the new commands from Al. | |
70 | # Don't print passwords in debugging. | |
71 | # | |
72 | # Revision 1.5 1991/08/29 16:23:49 lmjm | |
73 | # Timeout reads from the remote ftp server. | |
74 | # No longer call die expect on fatal errors. Just return fail codes. | |
75 | # Changed returns so higher up routines can tell whats happening. | |
76 | # Get expect/accept in correct order for dir listing. | |
3a26a986 | 77 | # When ftp_show is set then print hashes every 1k transferred (like ftp). |
79072805 LW |
78 | # Allow for stripping returns out of incoming data. |
79 | # Save last error in a global string. | |
80 | # | |
81 | # Revision 1.4 1991/08/14 21:04:58 lmjm | |
82 | # ftp'get now copes with ungetable files. | |
83 | # ftp'expect code changed such that the string_to_print is | |
84 | # ignored and the string sent back from the remote system is printed | |
85 | # instead. | |
86 | # Implemented patches from al. Removed spuiours tracing statements. | |
87 | # | |
88 | # Revision 1.3 1991/08/09 21:32:18 lmjm | |
89 | # Allow for another ok code on cwd's | |
90 | # Rejigger the log levels | |
91 | # Send \r\n for some odd ftp daemons | |
92 | # | |
93 | # Revision 1.2 1991/08/09 18:07:37 lmjm | |
94 | # Don't print messages unless ftp_show says to. | |
95 | # | |
96 | # Revision 1.1 1991/08/08 20:31:00 lmjm | |
97 | # Initial revision | |
98 | # | |
99 | ||
84902520 TB |
100 | require 'chat2.pl'; # into main |
101 | eval "require 'socket.ph'" || eval "require 'sys/socket.ph'" | |
102 | || die "socket.ph missing: $!\n"; | |
79072805 LW |
103 | |
104 | ||
105 | package ftp; | |
106 | ||
107 | if( defined( &main'PF_INET ) ){ | |
108 | $pf_inet = &main'PF_INET; | |
109 | $sock_stream = &main'SOCK_STREAM; | |
110 | local($name, $aliases, $proto) = getprotobyname( 'tcp' ); | |
111 | $tcp_proto = $proto; | |
112 | } | |
113 | else { | |
114 | # XXX hardwired $PF_INET, $SOCK_STREAM, 'tcp' | |
115 | # but who the heck would change these anyway? (:-) | |
116 | $pf_inet = 2; | |
117 | $sock_stream = 1; | |
118 | $tcp_proto = 6; | |
119 | } | |
120 | ||
121 | # If the remote ftp daemon doesn't respond within this time presume its dead | |
122 | # or something. | |
123 | $timeout = 30; | |
124 | ||
125 | # Timeout a read if I don't get data back within this many seconds | |
126 | $timeout_read = 20 * $timeout; | |
127 | ||
128 | # Timeout an open | |
129 | $timeout_open = $timeout; | |
130 | ||
131 | # This is a "global" it contains the last response from the remote ftp server | |
132 | # for use in error messages | |
133 | $ftp'response = ""; | |
134 | # Also ftp'NS is the socket containing the data coming in from the remote ls | |
135 | # command. | |
136 | ||
137 | # The size of block to be read or written when talking to the remote | |
138 | # ftp server | |
139 | $ftp'ftpbufsize = 4096; | |
140 | ||
141 | # How often to print a hash out, when debugging | |
142 | $ftp'hashevery = 1024; | |
143 | # Output a newline after this many hashes to prevent outputing very long lines | |
144 | $ftp'hashnl = 70; | |
145 | ||
146 | # If a proxy connection then who am I really talking to? | |
147 | $real_site = ""; | |
148 | ||
149 | # This is just a tracing aid. | |
150 | $ftp_show = 0; | |
151 | sub ftp'debug | |
152 | { | |
40da2db3 | 153 | $ftp_show = $_[0]; |
79072805 LW |
154 | # if( $ftp_show ){ |
155 | # print STDERR "ftp debugging on\n"; | |
156 | # } | |
157 | } | |
158 | ||
159 | sub ftp'set_timeout | |
160 | { | |
40da2db3 | 161 | $timeout = $_[0]; |
79072805 LW |
162 | $timeout_open = $timeout; |
163 | $timeout_read = 20 * $timeout; | |
164 | if( $ftp_show ){ | |
165 | print STDERR "ftp timeout set to $timeout\n"; | |
166 | } | |
167 | } | |
168 | ||
169 | ||
170 | sub ftp'open_alarm | |
171 | { | |
172 | die "timeout: open"; | |
173 | } | |
174 | ||
175 | sub ftp'timed_open | |
176 | { | |
177 | local( $site, $ftp_port, $retry_call, $attempts ) = @_; | |
178 | local( $connect_site, $connect_port ); | |
179 | local( $res ); | |
180 | ||
181 | alarm( $timeout_open ); | |
182 | ||
183 | while( $attempts-- ){ | |
184 | if( $ftp_show ){ | |
185 | print STDERR "proxy connecting via $proxy_gateway [$proxy_ftp_port]\n" if $proxy; | |
186 | print STDERR "Connecting to $site"; | |
187 | if( $ftp_port != 21 ){ | |
188 | print STDERR " [port $ftp_port]"; | |
189 | } | |
190 | print STDERR "\n"; | |
191 | } | |
192 | ||
193 | if( $proxy ) { | |
194 | if( ! $proxy_gateway ) { | |
195 | # if not otherwise set | |
196 | $proxy_gateway = "internet-gateway"; | |
197 | } | |
198 | if( $debug ) { | |
199 | print STDERR "using proxy services of $proxy_gateway, "; | |
200 | print STDERR "at $proxy_ftp_port\n"; | |
201 | } | |
202 | $connect_site = $proxy_gateway; | |
203 | $connect_port = $proxy_ftp_port; | |
204 | $real_site = $site; | |
205 | } | |
206 | else { | |
207 | $connect_site = $site; | |
208 | $connect_port = $ftp_port; | |
209 | } | |
210 | if( ! &chat'open_port( $connect_site, $connect_port ) ){ | |
211 | if( $retry_call ){ | |
212 | print STDERR "Failed to connect\n" if $ftp_show; | |
213 | next; | |
214 | } | |
215 | else { | |
216 | print STDERR "proxy connection failed " if $proxy; | |
217 | print STDERR "Cannot open ftp to $connect_site\n" if $ftp_show; | |
218 | return 0; | |
219 | } | |
220 | } | |
221 | $res = &ftp'expect( $timeout, | |
222 | 120, "service unavailable to $site", 0, | |
223 | 220, "ready for login to $site", 1, | |
224 | 421, "service unavailable to $site, closing connection", 0); | |
225 | if( ! $res ){ | |
226 | &chat'close(); | |
227 | next; | |
228 | } | |
229 | return 1; | |
230 | } | |
231 | continue { | |
232 | print STDERR "Pausing between retries\n"; | |
233 | sleep( $retry_pause ); | |
234 | } | |
235 | return 0; | |
236 | } | |
237 | ||
238 | sub ftp'open | |
239 | { | |
240 | local( $site, $ftp_port, $retry_call, $attempts ) = @_; | |
241 | ||
242 | $SIG{ 'ALRM' } = "ftp\'open_alarm"; | |
243 | ||
244 | local( $ret ) = eval "&timed_open( '$site', $ftp_port, $retry_call, $attempts )"; | |
245 | alarm( 0 ); | |
246 | ||
247 | if( $@ =~ /^timeout/ ){ | |
248 | return -1; | |
249 | } | |
250 | return $ret; | |
251 | } | |
252 | ||
253 | sub ftp'login | |
254 | { | |
255 | local( $remote_user, $remote_password ) = @_; | |
256 | ||
257 | if( $proxy ){ | |
2ad7ff01 | 258 | &ftp'send( "USER $remote_user\@$site" ); |
79072805 LW |
259 | } |
260 | else { | |
261 | &ftp'send( "USER $remote_user" ); | |
262 | } | |
263 | local( $val ) = | |
264 | &ftp'expect($timeout, | |
265 | 230, "$remote_user logged in", 1, | |
266 | 331, "send password for $remote_user", 2, | |
267 | ||
268 | 500, "syntax error", 0, | |
269 | 501, "syntax error", 0, | |
270 | 530, "not logged in", 0, | |
271 | 332, "account for login not supported", 0, | |
272 | ||
273 | 421, "service unavailable, closing connection", 0); | |
274 | if( $val == 1 ){ | |
275 | return 1; | |
276 | } | |
277 | if( $val == 2 ){ | |
278 | # A password is needed | |
279 | &ftp'send( "PASS $remote_password" ); | |
280 | ||
281 | $val = &ftp'expect( $timeout, | |
282 | 230, "$remote_user logged in", 1, | |
283 | ||
284 | 202, "command not implemented", 0, | |
285 | 332, "account for login not supported", 0, | |
286 | ||
287 | 530, "not logged in", 0, | |
288 | 500, "syntax error", 0, | |
289 | 501, "syntax error", 0, | |
290 | 503, "bad sequence of commands", 0, | |
291 | ||
292 | 421, "service unavailable, closing connection", 0); | |
293 | if( $val == 1){ | |
294 | # Logged in | |
295 | return 1; | |
296 | } | |
297 | } | |
298 | # If I got here I failed to login | |
299 | return 0; | |
300 | } | |
301 | ||
302 | sub ftp'close | |
303 | { | |
304 | &ftp'quit(); | |
305 | &chat'close(); | |
306 | } | |
307 | ||
308 | # Change directory | |
309 | # return 1 if successful | |
310 | # 0 on a failure | |
311 | sub ftp'cwd | |
312 | { | |
313 | local( $dir ) = @_; | |
314 | ||
315 | &ftp'send( "CWD $dir" ); | |
316 | ||
317 | return &ftp'expect( $timeout, | |
318 | 200, "working directory = $dir", 1, | |
319 | 250, "working directory = $dir", 1, | |
320 | ||
321 | 500, "syntax error", 0, | |
322 | 501, "syntax error", 0, | |
323 | 502, "command not implemented", 0, | |
324 | 530, "not logged in", 0, | |
325 | 550, "cannot change directory", 0, | |
326 | 421, "service unavailable, closing connection", 0 ); | |
327 | } | |
328 | ||
329 | # Get a full directory listing: | |
330 | # &ftp'dir( remote LIST options ) | |
331 | # Start a list goin with the given options. | |
332 | # Presuming that the remote deamon uses the ls command to generate the | |
d1be9408 | 333 | # data to send back then you can send it some extra options (eg: -lRa) |
79072805 LW |
334 | # return 1 if sucessful and 0 on a failure |
335 | sub ftp'dir_open | |
336 | { | |
337 | local( $options ) = @_; | |
338 | local( $ret ); | |
339 | ||
340 | if( ! &ftp'open_data_socket() ){ | |
341 | return 0; | |
342 | } | |
343 | ||
344 | if( $options ){ | |
345 | &ftp'send( "LIST $options" ); | |
346 | } | |
347 | else { | |
348 | &ftp'send( "LIST" ); | |
349 | } | |
350 | ||
351 | $ret = &ftp'expect( $timeout, | |
352 | 150, "reading directory", 1, | |
353 | ||
354 | 125, "data connection already open?", 0, | |
355 | ||
356 | 450, "file unavailable", 0, | |
357 | 500, "syntax error", 0, | |
358 | 501, "syntax error", 0, | |
359 | 502, "command not implemented", 0, | |
360 | 530, "not logged in", 0, | |
361 | ||
362 | 421, "service unavailable, closing connection", 0 ); | |
363 | if( ! $ret ){ | |
364 | &ftp'close_data_socket; | |
365 | return 0; | |
366 | } | |
367 | ||
368 | # | |
369 | # the data should be coming at us now | |
370 | # | |
371 | ||
372 | # now accept | |
373 | accept(NS,S) || die "accept failed $!"; | |
374 | ||
375 | return 1; | |
376 | } | |
377 | ||
378 | ||
379 | # Close down reading the result of a remote ls command | |
380 | # return 1 if successful and 0 on failure | |
381 | sub ftp'dir_close | |
382 | { | |
383 | local( $ret ); | |
384 | ||
385 | # read the close | |
386 | # | |
387 | $ret = &ftp'expect($timeout, | |
388 | 226, "", 1, # transfer complete, closing connection | |
389 | 250, "", 1, # action completed | |
390 | ||
391 | 425, "can't open data connection", 0, | |
392 | 426, "connection closed, transfer aborted", 0, | |
393 | 451, "action aborted, local error", 0, | |
394 | 421, "service unavailable, closing connection", 0); | |
395 | ||
396 | # shut down our end of the socket | |
397 | &ftp'close_data_socket; | |
398 | ||
399 | if( ! $ret ){ | |
400 | return 0; | |
401 | } | |
402 | ||
403 | return 1; | |
404 | } | |
405 | ||
406 | # Quit from the remote ftp server | |
407 | # return 1 if successful and 0 on failure | |
408 | sub ftp'quit | |
409 | { | |
410 | $site_command_check = 0; | |
411 | @site_command_list = (); | |
412 | ||
413 | &ftp'send("QUIT"); | |
414 | ||
415 | return &ftp'expect($timeout, | |
416 | 221, "Goodbye", 1, # transfer complete, closing connection | |
417 | ||
418 | 500, "error quitting??", 0); | |
419 | } | |
420 | ||
421 | sub ftp'read_alarm | |
422 | { | |
423 | die "timeout: read"; | |
424 | } | |
425 | ||
426 | sub ftp'timed_read | |
427 | { | |
428 | alarm( $timeout_read ); | |
429 | return sysread( NS, $buf, $ftpbufsize ); | |
430 | } | |
431 | ||
432 | sub ftp'read | |
433 | { | |
434 | $SIG{ 'ALRM' } = "ftp\'read_alarm"; | |
435 | ||
436 | local( $ret ) = eval '&timed_read()'; | |
437 | alarm( 0 ); | |
438 | ||
439 | if( $@ =~ /^timeout/ ){ | |
440 | return -1; | |
441 | } | |
442 | return $ret; | |
443 | } | |
444 | ||
445 | # Get a remote file back into a local file. | |
446 | # If no loc_fname passed then uses rem_fname. | |
447 | # returns 1 on success and 0 on failure | |
448 | sub ftp'get | |
449 | { | |
450 | local($rem_fname, $loc_fname, $restart ) = @_; | |
451 | ||
452 | if ($loc_fname eq "") { | |
453 | $loc_fname = $rem_fname; | |
454 | } | |
455 | ||
456 | if( ! &ftp'open_data_socket() ){ | |
457 | print STDERR "Cannot open data socket\n"; | |
458 | return 0; | |
459 | } | |
460 | ||
461 | if( $loc_fname ne '-' ){ | |
462 | # Find the size of the target file | |
463 | local( $restart_at ) = &ftp'filesize( $loc_fname ); | |
464 | if( $restart && $restart_at > 0 && &ftp'restart( $restart_at ) ){ | |
465 | $restart = 1; | |
466 | # Make sure the file can be updated | |
467 | chmod( 0644, $loc_fname ); | |
468 | } | |
469 | else { | |
470 | $restart = 0; | |
471 | unlink( $loc_fname ); | |
472 | } | |
473 | } | |
474 | ||
475 | &ftp'send( "RETR $rem_fname" ); | |
476 | ||
477 | local( $ret ) = | |
478 | &ftp'expect($timeout, | |
479 | 150, "receiving $rem_fname", 1, | |
480 | ||
481 | 125, "data connection already open?", 0, | |
482 | ||
483 | 450, "file unavailable", 2, | |
484 | 550, "file unavailable", 2, | |
485 | ||
486 | 500, "syntax error", 0, | |
487 | 501, "syntax error", 0, | |
488 | 530, "not logged in", 0, | |
489 | ||
490 | 421, "service unavailable, closing connection", 0); | |
491 | if( $ret != 1 ){ | |
492 | print STDERR "Failure on RETR command\n"; | |
493 | ||
494 | # shut down our end of the socket | |
495 | &ftp'close_data_socket; | |
496 | ||
497 | return 0; | |
498 | } | |
499 | ||
500 | # | |
501 | # the data should be coming at us now | |
502 | # | |
503 | ||
504 | # now accept | |
505 | accept(NS,S) || die "accept failed: $!"; | |
506 | ||
507 | # | |
508 | # open the local fname | |
509 | # concatenate on the end if restarting, else just overwrite | |
510 | if( !open(FH, ($restart ? '>>' : '>') . $loc_fname) ){ | |
511 | print STDERR "Cannot create local file $loc_fname\n"; | |
512 | ||
513 | # shut down our end of the socket | |
514 | &ftp'close_data_socket; | |
515 | ||
516 | return 0; | |
517 | } | |
518 | ||
519 | # while (<NS>) { | |
520 | # print FH ; | |
521 | # } | |
522 | ||
523 | local( $start_time ) = time; | |
524 | local( $bytes, $lasthash, $hashes ) = (0, 0, 0); | |
525 | while( ($len = &ftp'read()) > 0 ){ | |
526 | $bytes += $len; | |
527 | if( $strip_cr ){ | |
528 | $ftp'buf =~ s/\r//g; | |
529 | } | |
530 | if( $ftp_show ){ | |
531 | while( $bytes > ($lasthash + $ftp'hashevery) ){ | |
532 | print STDERR '#'; | |
533 | $lasthash += $ftp'hashevery; | |
534 | $hashes++; | |
535 | if( ($hashes % $ftp'hashnl) == 0 ){ | |
536 | print STDERR "\n"; | |
537 | } | |
538 | } | |
539 | } | |
540 | if( ! print FH $ftp'buf ){ | |
541 | print STDERR "\nfailed to write data"; | |
542 | return 0; | |
543 | } | |
544 | } | |
545 | close( FH ); | |
546 | ||
547 | # shut down our end of the socket | |
548 | &ftp'close_data_socket; | |
549 | ||
550 | if( $len < 0 ){ | |
551 | print STDERR "\ntimed out reading data!\n"; | |
552 | ||
553 | return 0; | |
554 | } | |
555 | ||
556 | if( $ftp_show ){ | |
557 | if( $hashes && ($hashes % $ftp'hashnl) != 0 ){ | |
558 | print STDERR "\n"; | |
559 | } | |
560 | local( $secs ) = (time - $start_time); | |
561 | if( $secs <= 0 ){ | |
562 | $secs = 1; # To avoid a divide by zero; | |
563 | } | |
564 | ||
565 | local( $rate ) = int( $bytes / $secs ); | |
566 | print STDERR "Got $bytes bytes ($rate bytes/sec)\n"; | |
567 | } | |
568 | ||
569 | # | |
570 | # read the close | |
571 | # | |
572 | ||
573 | $ret = &ftp'expect($timeout, | |
574 | 226, "Got file", 1, # transfer complete, closing connection | |
575 | 250, "Got file", 1, # action completed | |
576 | ||
577 | 110, "restart not supported", 0, | |
578 | 425, "can't open data connection", 0, | |
579 | 426, "connection closed, transfer aborted", 0, | |
580 | 451, "action aborted, local error", 0, | |
581 | 421, "service unavailable, closing connection", 0); | |
582 | ||
583 | return $ret; | |
584 | } | |
585 | ||
586 | sub ftp'delete | |
587 | { | |
588 | local( $rem_fname, $val ) = @_; | |
589 | ||
590 | &ftp'send("DELE $rem_fname" ); | |
591 | $val = &ftp'expect( $timeout, | |
592 | 250,"Deleted $rem_fname", 1, | |
593 | 550,"Permission denied",0 | |
594 | ); | |
595 | return $val == 1; | |
596 | } | |
597 | ||
598 | sub ftp'deldir | |
599 | { | |
600 | local( $fname ) = @_; | |
601 | ||
602 | # not yet implemented | |
603 | # RMD | |
604 | } | |
605 | ||
606 | # UPDATE ME!!!!!! | |
607 | # Add in the hash printing and newline conversion | |
608 | sub ftp'put | |
609 | { | |
610 | local( $loc_fname, $rem_fname ) = @_; | |
611 | local( $strip_cr ); | |
612 | ||
613 | if ($loc_fname eq "") { | |
614 | $loc_fname = $rem_fname; | |
615 | } | |
616 | ||
617 | if( ! &ftp'open_data_socket() ){ | |
618 | return 0; | |
619 | } | |
620 | ||
621 | &ftp'send("STOR $rem_fname"); | |
622 | ||
623 | # | |
624 | # the data should be coming at us now | |
625 | # | |
626 | ||
627 | local( $ret ) = | |
628 | &ftp'expect($timeout, | |
629 | 150, "sending $loc_fname", 1, | |
630 | ||
631 | 125, "data connection already open?", 0, | |
632 | 450, "file unavailable", 0, | |
633 | ||
634 | 532, "need account for storing files", 0, | |
635 | 452, "insufficient storage on system", 0, | |
636 | 553, "file name not allowed", 0, | |
637 | ||
638 | 500, "syntax error", 0, | |
639 | 501, "syntax error", 0, | |
640 | 530, "not logged in", 0, | |
641 | ||
642 | 421, "service unavailable, closing connection", 0); | |
643 | ||
644 | if( $ret != 1 ){ | |
645 | # shut down our end of the socket | |
646 | &ftp'close_data_socket; | |
647 | ||
648 | return 0; | |
649 | } | |
650 | ||
651 | ||
652 | # | |
653 | # the data should be coming at us now | |
654 | # | |
655 | ||
656 | # now accept | |
657 | accept(NS,S) || die "accept failed: $!"; | |
658 | ||
659 | # | |
660 | # open the local fname | |
661 | # | |
662 | if( !open(FH, "<$loc_fname") ){ | |
663 | print STDERR "Cannot open local file $loc_fname\n"; | |
664 | ||
665 | # shut down our end of the socket | |
666 | &ftp'close_data_socket; | |
667 | ||
668 | return 0; | |
669 | } | |
670 | ||
671 | while (<FH>) { | |
672 | print NS ; | |
673 | } | |
674 | close(FH); | |
675 | ||
676 | # shut down our end of the socket to signal EOF | |
677 | &ftp'close_data_socket; | |
678 | ||
679 | # | |
680 | # read the close | |
681 | # | |
682 | ||
683 | $ret = &ftp'expect($timeout, | |
684 | 226, "file put", 1, # transfer complete, closing connection | |
685 | 250, "file put", 1, # action completed | |
686 | ||
687 | 110, "restart not supported", 0, | |
688 | 425, "can't open data connection", 0, | |
689 | 426, "connection closed, transfer aborted", 0, | |
690 | 451, "action aborted, local error", 0, | |
691 | 551, "page type unknown", 0, | |
692 | 552, "storage allocation exceeded", 0, | |
693 | ||
694 | 421, "service unavailable, closing connection", 0); | |
695 | if( ! $ret ){ | |
696 | print STDERR "error putting $loc_fname\n"; | |
697 | } | |
698 | return $ret; | |
699 | } | |
700 | ||
701 | sub ftp'restart | |
702 | { | |
703 | local( $restart_point, $ret ) = @_; | |
704 | ||
705 | &ftp'send("REST $restart_point"); | |
706 | ||
707 | # | |
708 | # see what they say | |
709 | ||
710 | $ret = &ftp'expect($timeout, | |
711 | 350, "restarting at $restart_point", 1, | |
712 | ||
713 | 500, "syntax error", 0, | |
714 | 501, "syntax error", 0, | |
715 | 502, "REST not implemented", 2, | |
716 | 530, "not logged in", 0, | |
717 | 554, "REST not implemented", 2, | |
718 | ||
719 | 421, "service unavailable, closing connection", 0); | |
720 | return $ret; | |
721 | } | |
722 | ||
723 | # Set the file transfer type | |
724 | sub ftp'type | |
725 | { | |
726 | local( $type ) = @_; | |
727 | ||
728 | &ftp'send("TYPE $type"); | |
729 | ||
730 | # | |
731 | # see what they say | |
732 | ||
733 | $ret = &ftp'expect($timeout, | |
734 | 200, "file type set to $type", 1, | |
735 | ||
736 | 500, "syntax error", 0, | |
737 | 501, "syntax error", 0, | |
738 | 504, "Invalid form or byte size for type $type", 0, | |
739 | ||
740 | 421, "service unavailable, closing connection", 0); | |
741 | return $ret; | |
742 | } | |
743 | ||
744 | $site_command_check = 0; | |
745 | @site_command_list = (); | |
746 | ||
747 | # routine to query the remote server for 'SITE' commands supported | |
748 | sub ftp'site_commands | |
749 | { | |
750 | local( $ret ); | |
751 | ||
752 | # if we havent sent a 'HELP SITE', send it now | |
753 | if( !$site_command_check ){ | |
754 | ||
755 | $site_command_check = 1; | |
756 | ||
757 | &ftp'send( "HELP SITE" ); | |
758 | ||
759 | # assume the line in the HELP SITE response with the 'HELP' | |
760 | # command is the one for us | |
761 | $ret = &ftp'expect( $timeout, | |
762 | ".*HELP.*", "", "\$1", | |
763 | 214, "", "0", | |
764 | 202, "", "0" ); | |
765 | ||
766 | if( $ret eq "0" ){ | |
767 | print STDERR "No response from HELP SITE\n" if( $ftp_show ); | |
768 | } | |
769 | ||
770 | @site_command_list = split(/\s+/, $ret); | |
771 | } | |
772 | ||
773 | return @site_command_list; | |
774 | } | |
775 | ||
776 | # return the pwd, or null if we can't get the pwd | |
777 | sub ftp'pwd | |
778 | { | |
779 | local( $ret, $cwd ); | |
780 | ||
781 | &ftp'send( "PWD" ); | |
782 | ||
783 | # | |
784 | # see what they say | |
785 | ||
786 | $ret = &ftp'expect( $timeout, | |
787 | 257, "working dir is", 1, | |
788 | 500, "syntax error", 0, | |
789 | 501, "syntax error", 0, | |
790 | 502, "PWD not implemented", 0, | |
791 | 550, "file unavailable", 0, | |
792 | ||
793 | 421, "service unavailable, closing connection", 0 ); | |
794 | if( $ret ){ | |
795 | if( $ftp'response =~ /^257\s"(.*)"\s.*$/ ){ | |
796 | $cwd = $1; | |
797 | } | |
798 | } | |
799 | return $cwd; | |
800 | } | |
801 | ||
802 | # return 1 for success, 0 for failure | |
803 | sub ftp'mkdir | |
804 | { | |
805 | local( $path ) = @_; | |
806 | local( $ret ); | |
807 | ||
808 | &ftp'send( "MKD $path" ); | |
809 | ||
810 | # | |
811 | # see what they say | |
812 | ||
813 | $ret = &ftp'expect( $timeout, | |
814 | 257, "made directory $path", 1, | |
815 | ||
816 | 500, "syntax error", 0, | |
817 | 501, "syntax error", 0, | |
818 | 502, "MKD not implemented", 0, | |
819 | 530, "not logged in", 0, | |
820 | 550, "file unavailable", 0, | |
821 | ||
822 | 421, "service unavailable, closing connection", 0 ); | |
823 | return $ret; | |
824 | } | |
825 | ||
826 | # return 1 for success, 0 for failure | |
827 | sub ftp'chmod | |
828 | { | |
829 | local( $path, $mode ) = @_; | |
830 | local( $ret ); | |
831 | ||
832 | &ftp'send( sprintf( "SITE CHMOD %o $path", $mode ) ); | |
833 | ||
834 | # | |
835 | # see what they say | |
836 | ||
837 | $ret = &ftp'expect( $timeout, | |
838 | 200, "chmod $mode $path succeeded", 1, | |
839 | ||
840 | 500, "syntax error", 0, | |
841 | 501, "syntax error", 0, | |
842 | 502, "CHMOD not implemented", 0, | |
843 | 530, "not logged in", 0, | |
844 | 550, "file unavailable", 0, | |
845 | ||
846 | 421, "service unavailable, closing connection", 0 ); | |
847 | return $ret; | |
848 | } | |
849 | ||
850 | # rename a file | |
851 | sub ftp'rename | |
852 | { | |
853 | local( $old_name, $new_name ) = @_; | |
854 | local( $ret ); | |
855 | ||
856 | &ftp'send( "RNFR $old_name" ); | |
857 | ||
858 | # | |
859 | # see what they say | |
860 | ||
861 | $ret = &ftp'expect( $timeout, | |
862 | 350, "", 1, | |
863 | ||
864 | 500, "syntax error", 0, | |
865 | 501, "syntax error", 0, | |
866 | 502, "RNFR not implemented", 0, | |
867 | 530, "not logged in", 0, | |
868 | 550, "file unavailable", 0, | |
869 | 450, "file unavailable", 0, | |
870 | ||
871 | 421, "service unavailable, closing connection", 0); | |
872 | ||
873 | ||
874 | # check if the "rename from" occurred ok | |
875 | if( $ret ) { | |
876 | &ftp'send( "RNTO $new_name" ); | |
877 | ||
878 | # | |
879 | # see what they say | |
880 | ||
881 | $ret = &ftp'expect( $timeout, | |
882 | 250, "rename $old_name to $new_name", 1, | |
883 | ||
884 | 500, "syntax error", 0, | |
885 | 501, "syntax error", 0, | |
886 | 502, "RNTO not implemented", 0, | |
887 | 503, "bad sequence of commands", 0, | |
888 | 530, "not logged in", 0, | |
889 | 532, "need account for storing files", 0, | |
890 | 553, "file name not allowed", 0, | |
891 | ||
892 | 421, "service unavailable, closing connection", 0); | |
893 | } | |
894 | ||
895 | return $ret; | |
896 | } | |
897 | ||
898 | ||
899 | sub ftp'quote | |
900 | { | |
901 | local( $cmd ) = @_; | |
902 | ||
903 | &ftp'send( $cmd ); | |
904 | ||
905 | return &ftp'expect( $timeout, | |
906 | 200, "Remote '$cmd' OK", 1, | |
907 | 500, "error in remote '$cmd'", 0 ); | |
908 | } | |
909 | ||
910 | # ------------------------------------------------------------------------------ | |
911 | # These are the lower level support routines | |
912 | ||
913 | sub ftp'expectgot | |
914 | { | |
915 | ($ftp'response, $ftp'fatalerror) = @_; | |
916 | if( $ftp_show ){ | |
917 | print STDERR "$ftp'response\n"; | |
918 | } | |
919 | } | |
920 | ||
921 | # | |
922 | # create the list of parameters for chat'expect | |
923 | # | |
924 | # ftp'expect(time_out, {value, string_to_print, return value}); | |
925 | # if the string_to_print is "" then nothing is printed | |
926 | # the last response is stored in $ftp'response | |
927 | # | |
928 | # NOTE: lmjm has changed this code such that the string_to_print is | |
929 | # ignored and the string sent back from the remote system is printed | |
930 | # instead. | |
931 | # | |
932 | sub ftp'expect { | |
933 | local( $ret ); | |
934 | local( $time_out ); | |
935 | local( $expect_args ); | |
936 | ||
937 | $ftp'response = ''; | |
938 | $ftp'fatalerror = 0; | |
939 | ||
940 | @expect_args = (); | |
941 | ||
942 | $time_out = shift(@_); | |
943 | ||
944 | while( @_ ){ | |
945 | local( $code ) = shift( @_ ); | |
946 | local( $pre ) = '^'; | |
947 | if( $code =~ /^\d/ ){ | |
948 | $pre =~ "[.|\n]*^"; | |
949 | } | |
950 | push( @expect_args, "$pre(" . $code . " .*)\\015\\n" ); | |
951 | shift( @_ ); | |
952 | push( @expect_args, | |
953 | "&ftp'expectgot( \$1, 0 ); " . shift( @_ ) ); | |
954 | } | |
955 | ||
956 | # Treat all unrecognised lines as continuations | |
957 | push( @expect_args, "^(.*)\\015\\n" ); | |
958 | push( @expect_args, "&ftp'expectgot( \$1, 0 ); 100" ); | |
959 | ||
960 | # add patterns TIMEOUT and EOF | |
961 | ||
962 | push( @expect_args, 'TIMEOUT' ); | |
963 | push( @expect_args, "&ftp'expectgot( \"timed out\", 1 ); 0" ); | |
964 | ||
965 | push( @expect_args, 'EOF' ); | |
966 | push( @expect_args, "&ftp'expectgot( \"remote server gone away\", 1 ); 0" ); | |
967 | ||
968 | if( $ftp_show > 9 ){ | |
969 | &printargs( $time_out, @expect_args ); | |
970 | } | |
971 | ||
972 | $ret = &chat'expect( $time_out, @expect_args ); | |
973 | if( $ret == 100 ){ | |
974 | # we saw a continuation line, wait for the end | |
975 | push( @expect_args, "^.*\n" ); | |
976 | push( @expect_args, "100" ); | |
977 | ||
978 | while( $ret == 100 ){ | |
979 | $ret = &chat'expect( $time_out, @expect_args ); | |
980 | } | |
981 | } | |
982 | ||
983 | return $ret; | |
984 | } | |
985 | ||
986 | # | |
987 | # opens NS for io | |
988 | # | |
989 | sub ftp'open_data_socket | |
990 | { | |
991 | local( $ret ); | |
992 | local( $hostname ); | |
993 | local( $sockaddr, $name, $aliases, $proto, $port ); | |
994 | local( $type, $len, $thisaddr, $myaddr, $a, $b, $c, $d ); | |
995 | local( $mysockaddr, $family, $hi, $lo ); | |
996 | ||
997 | ||
998 | $sockaddr = 'S n a4 x8'; | |
999 | chop( $hostname = `hostname` ); | |
1000 | ||
1001 | $port = "ftp"; | |
1002 | ||
1003 | ($name, $aliases, $proto) = getprotobyname( 'tcp' ); | |
1004 | ($name, $aliases, $port) = getservbyname( $port, 'tcp' ); | |
1005 | ||
1006 | # ($name, $aliases, $type, $len, $thisaddr) = | |
1007 | # gethostbyname( $hostname ); | |
1008 | ($a,$b,$c,$d) = unpack( 'C4', $chat'thisaddr ); | |
1009 | ||
1010 | # $this = pack( $sockaddr, &main'AF_INET, 0, $thisaddr ); | |
1011 | $this = $chat'thisproc; | |
1012 | ||
1013 | socket(S, $pf_inet, $sock_stream, $proto ) || die "socket: $!"; | |
1014 | bind(S, $this) || die "bind: $!"; | |
1015 | ||
1016 | # get the port number | |
1017 | $mysockaddr = getsockname(S); | |
1018 | ($family, $port, $myaddr) = unpack( $sockaddr, $mysockaddr ); | |
1019 | ||
1020 | $hi = ($port >> 8) & 0x00ff; | |
1021 | $lo = $port & 0x00ff; | |
1022 | ||
1023 | # | |
1024 | # we MUST do a listen before sending the port otherwise | |
1025 | # the PORT may fail | |
1026 | # | |
1027 | listen( S, 5 ) || die "listen"; | |
1028 | ||
1029 | &ftp'send( "PORT $a,$b,$c,$d,$hi,$lo" ); | |
1030 | ||
1031 | return &ftp'expect($timeout, | |
1032 | 200, "PORT command successful", 1, | |
1033 | 250, "PORT command successful", 1 , | |
1034 | ||
1035 | 500, "syntax error", 0, | |
1036 | 501, "syntax error", 0, | |
1037 | 530, "not logged in", 0, | |
1038 | ||
1039 | 421, "service unavailable, closing connection", 0); | |
1040 | } | |
1041 | ||
1042 | sub ftp'close_data_socket | |
1043 | { | |
1044 | close(NS); | |
1045 | } | |
1046 | ||
1047 | sub ftp'send | |
1048 | { | |
1049 | local($send_cmd) = @_; | |
1050 | if( $send_cmd =~ /\n/ ){ | |
1051 | print STDERR "ERROR, \\n in send string for $send_cmd\n"; | |
1052 | } | |
1053 | ||
1054 | if( $ftp_show ){ | |
1055 | local( $sc ) = $send_cmd; | |
1056 | ||
1057 | if( $send_cmd =~ /^PASS/){ | |
1058 | $sc = "PASS <somestring>"; | |
1059 | } | |
1060 | print STDERR "---> $sc\n"; | |
1061 | } | |
1062 | ||
1063 | &chat'print( "$send_cmd\r\n" ); | |
1064 | } | |
1065 | ||
1066 | sub ftp'printargs | |
1067 | { | |
1068 | while( @_ ){ | |
1069 | print STDERR shift( @_ ) . "\n"; | |
1070 | } | |
1071 | } | |
1072 | ||
1073 | sub ftp'filesize | |
1074 | { | |
1075 | local( $fname ) = @_; | |
1076 | ||
1077 | if( ! -f $fname ){ | |
1078 | return -1; | |
1079 | } | |
1080 | ||
1081 | return (stat( _ ))[ 7 ]; | |
1082 | ||
1083 | } | |
1084 | ||
1085 | # make this package return true | |
1086 | 1; |