Commit | Line | Data |
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79072805 LW |
1 | #-*-perl-*- |
2 | # This is a wrapper to the chat2.pl routines that make life easier | |
3 | # to do ftp type work. | |
4 | # Mostly by Lee McLoughlin <lmjm@doc.ic.ac.uk> | |
5 | # based on original version by Alan R. Martello <al@ee.pitt.edu> | |
6 | # And by A.Macpherson@bnr.co.uk for multi-homed hosts | |
7 | # | |
8 | # $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 $ | |
9 | # $Log: ftp.pl,v $ | |
10 | # Revision 1.17 1993/04/21 10:06:54 lmjm | |
11 | # Send all status reports to STDERR not to STDOUT (to allow use by ftpcat). | |
12 | # Allow target file to be '-' meaning STDOUT | |
13 | # Added ftp'quote | |
14 | # | |
15 | # Revision 1.16 1993/01/28 18:59:05 lmjm | |
16 | # Allow socket arguemtns to come from main. | |
17 | # Minor cleanups - removed old comments. | |
18 | # | |
19 | # Revision 1.15 1992/11/25 21:09:30 lmjm | |
20 | # Added another REST return code. | |
21 | # | |
22 | # Revision 1.14 1992/08/12 14:33:42 lmjm | |
23 | # Fail ftp'write if out of space. | |
24 | # | |
25 | # Revision 1.13 1992/03/20 21:01:03 lmjm | |
26 | # Added in the proxy ftp code from Edwards Reed <err@cinops.xerox.com> | |
27 | # Added ftp'delete from Aaron Wohl <aw0g+@andrew.cmu.edu> | |
28 | # | |
29 | # Revision 1.12 1992/02/06 23:25:56 lmjm | |
30 | # Moved code around so can use this as a lib for both mirror and ftpmail. | |
31 | # Time out opens. In case Unix doesn't bother to. | |
32 | # | |
33 | # Revision 1.11 1991/11/27 22:05:57 lmjm | |
34 | # Match the response code number at the start of a line allowing | |
35 | # for any leading junk. | |
36 | # | |
37 | # Revision 1.10 1991/10/23 22:42:20 lmjm | |
38 | # Added better timeout code. | |
39 | # Tried to optimise file transfer | |
40 | # Moved open/close code to not leak file handles. | |
41 | # Cleaned up the alarm code. | |
42 | # Added $fatalerror to show wether the ftp link is really dead. | |
43 | # | |
44 | # Revision 1.9 1991/10/07 18:30:35 lmjm | |
45 | # Made the timeout-read code work. | |
46 | # Added restarting file gets. | |
47 | # Be more verbose if ever have to call die. | |
48 | # | |
49 | # Revision 1.8 1991/09/17 22:53:16 lmjm | |
50 | # Spot when open_data_socket fails and return a failure rather than dying. | |
51 | # | |
52 | # Revision 1.7 1991/09/12 22:40:25 lmjm | |
53 | # Added Andrew Macpherson's patches for hosts without ip forwarding. | |
54 | # | |
55 | # Revision 1.6 1991/09/06 19:53:52 lmjm | |
56 | # Relaid out the code the way I like it! | |
57 | # Changed the debuggin to produce more "appropriate" messages | |
58 | # Fixed bugs in the ordering of put and dir listing. | |
59 | # Allow for hash printing when getting files (a la ftp). | |
60 | # Added the new commands from Al. | |
61 | # Don't print passwords in debugging. | |
62 | # | |
63 | # Revision 1.5 1991/08/29 16:23:49 lmjm | |
64 | # Timeout reads from the remote ftp server. | |
65 | # No longer call die expect on fatal errors. Just return fail codes. | |
66 | # Changed returns so higher up routines can tell whats happening. | |
67 | # Get expect/accept in correct order for dir listing. | |
68 | # When ftp_show is set then print hashes every 1k transfered (like ftp). | |
69 | # Allow for stripping returns out of incoming data. | |
70 | # Save last error in a global string. | |
71 | # | |
72 | # Revision 1.4 1991/08/14 21:04:58 lmjm | |
73 | # ftp'get now copes with ungetable files. | |
74 | # ftp'expect code changed such that the string_to_print is | |
75 | # ignored and the string sent back from the remote system is printed | |
76 | # instead. | |
77 | # Implemented patches from al. Removed spuiours tracing statements. | |
78 | # | |
79 | # Revision 1.3 1991/08/09 21:32:18 lmjm | |
80 | # Allow for another ok code on cwd's | |
81 | # Rejigger the log levels | |
82 | # Send \r\n for some odd ftp daemons | |
83 | # | |
84 | # Revision 1.2 1991/08/09 18:07:37 lmjm | |
85 | # Don't print messages unless ftp_show says to. | |
86 | # | |
87 | # Revision 1.1 1991/08/08 20:31:00 lmjm | |
88 | # Initial revision | |
89 | # | |
90 | ||
91 | require 'chat2.pl'; | |
c2960299 | 92 | eval "require 'socket.ph'" || eval "require 'sys/socket.ph'" || die "socket.ph missing: $!\n"; |
79072805 LW |
93 | |
94 | ||
95 | package ftp; | |
96 | ||
97 | if( defined( &main'PF_INET ) ){ | |
98 | $pf_inet = &main'PF_INET; | |
99 | $sock_stream = &main'SOCK_STREAM; | |
100 | local($name, $aliases, $proto) = getprotobyname( 'tcp' ); | |
101 | $tcp_proto = $proto; | |
102 | } | |
103 | else { | |
104 | # XXX hardwired $PF_INET, $SOCK_STREAM, 'tcp' | |
105 | # but who the heck would change these anyway? (:-) | |
106 | $pf_inet = 2; | |
107 | $sock_stream = 1; | |
108 | $tcp_proto = 6; | |
109 | } | |
110 | ||
111 | # If the remote ftp daemon doesn't respond within this time presume its dead | |
112 | # or something. | |
113 | $timeout = 30; | |
114 | ||
115 | # Timeout a read if I don't get data back within this many seconds | |
116 | $timeout_read = 20 * $timeout; | |
117 | ||
118 | # Timeout an open | |
119 | $timeout_open = $timeout; | |
120 | ||
121 | # This is a "global" it contains the last response from the remote ftp server | |
122 | # for use in error messages | |
123 | $ftp'response = ""; | |
124 | # Also ftp'NS is the socket containing the data coming in from the remote ls | |
125 | # command. | |
126 | ||
127 | # The size of block to be read or written when talking to the remote | |
128 | # ftp server | |
129 | $ftp'ftpbufsize = 4096; | |
130 | ||
131 | # How often to print a hash out, when debugging | |
132 | $ftp'hashevery = 1024; | |
133 | # Output a newline after this many hashes to prevent outputing very long lines | |
134 | $ftp'hashnl = 70; | |
135 | ||
136 | # If a proxy connection then who am I really talking to? | |
137 | $real_site = ""; | |
138 | ||
139 | # This is just a tracing aid. | |
140 | $ftp_show = 0; | |
141 | sub ftp'debug | |
142 | { | |
40da2db3 | 143 | $ftp_show = $_[0]; |
79072805 LW |
144 | # if( $ftp_show ){ |
145 | # print STDERR "ftp debugging on\n"; | |
146 | # } | |
147 | } | |
148 | ||
149 | sub ftp'set_timeout | |
150 | { | |
40da2db3 | 151 | $timeout = $_[0]; |
79072805 LW |
152 | $timeout_open = $timeout; |
153 | $timeout_read = 20 * $timeout; | |
154 | if( $ftp_show ){ | |
155 | print STDERR "ftp timeout set to $timeout\n"; | |
156 | } | |
157 | } | |
158 | ||
159 | ||
160 | sub ftp'open_alarm | |
161 | { | |
162 | die "timeout: open"; | |
163 | } | |
164 | ||
165 | sub ftp'timed_open | |
166 | { | |
167 | local( $site, $ftp_port, $retry_call, $attempts ) = @_; | |
168 | local( $connect_site, $connect_port ); | |
169 | local( $res ); | |
170 | ||
171 | alarm( $timeout_open ); | |
172 | ||
173 | while( $attempts-- ){ | |
174 | if( $ftp_show ){ | |
175 | print STDERR "proxy connecting via $proxy_gateway [$proxy_ftp_port]\n" if $proxy; | |
176 | print STDERR "Connecting to $site"; | |
177 | if( $ftp_port != 21 ){ | |
178 | print STDERR " [port $ftp_port]"; | |
179 | } | |
180 | print STDERR "\n"; | |
181 | } | |
182 | ||
183 | if( $proxy ) { | |
184 | if( ! $proxy_gateway ) { | |
185 | # if not otherwise set | |
186 | $proxy_gateway = "internet-gateway"; | |
187 | } | |
188 | if( $debug ) { | |
189 | print STDERR "using proxy services of $proxy_gateway, "; | |
190 | print STDERR "at $proxy_ftp_port\n"; | |
191 | } | |
192 | $connect_site = $proxy_gateway; | |
193 | $connect_port = $proxy_ftp_port; | |
194 | $real_site = $site; | |
195 | } | |
196 | else { | |
197 | $connect_site = $site; | |
198 | $connect_port = $ftp_port; | |
199 | } | |
200 | if( ! &chat'open_port( $connect_site, $connect_port ) ){ | |
201 | if( $retry_call ){ | |
202 | print STDERR "Failed to connect\n" if $ftp_show; | |
203 | next; | |
204 | } | |
205 | else { | |
206 | print STDERR "proxy connection failed " if $proxy; | |
207 | print STDERR "Cannot open ftp to $connect_site\n" if $ftp_show; | |
208 | return 0; | |
209 | } | |
210 | } | |
211 | $res = &ftp'expect( $timeout, | |
212 | 120, "service unavailable to $site", 0, | |
213 | 220, "ready for login to $site", 1, | |
214 | 421, "service unavailable to $site, closing connection", 0); | |
215 | if( ! $res ){ | |
216 | &chat'close(); | |
217 | next; | |
218 | } | |
219 | return 1; | |
220 | } | |
221 | continue { | |
222 | print STDERR "Pausing between retries\n"; | |
223 | sleep( $retry_pause ); | |
224 | } | |
225 | return 0; | |
226 | } | |
227 | ||
228 | sub ftp'open | |
229 | { | |
230 | local( $site, $ftp_port, $retry_call, $attempts ) = @_; | |
231 | ||
232 | $SIG{ 'ALRM' } = "ftp\'open_alarm"; | |
233 | ||
234 | local( $ret ) = eval "&timed_open( '$site', $ftp_port, $retry_call, $attempts )"; | |
235 | alarm( 0 ); | |
236 | ||
237 | if( $@ =~ /^timeout/ ){ | |
238 | return -1; | |
239 | } | |
240 | return $ret; | |
241 | } | |
242 | ||
243 | sub ftp'login | |
244 | { | |
245 | local( $remote_user, $remote_password ) = @_; | |
246 | ||
247 | if( $proxy ){ | |
2ad7ff01 | 248 | &ftp'send( "USER $remote_user\@$site" ); |
79072805 LW |
249 | } |
250 | else { | |
251 | &ftp'send( "USER $remote_user" ); | |
252 | } | |
253 | local( $val ) = | |
254 | &ftp'expect($timeout, | |
255 | 230, "$remote_user logged in", 1, | |
256 | 331, "send password for $remote_user", 2, | |
257 | ||
258 | 500, "syntax error", 0, | |
259 | 501, "syntax error", 0, | |
260 | 530, "not logged in", 0, | |
261 | 332, "account for login not supported", 0, | |
262 | ||
263 | 421, "service unavailable, closing connection", 0); | |
264 | if( $val == 1 ){ | |
265 | return 1; | |
266 | } | |
267 | if( $val == 2 ){ | |
268 | # A password is needed | |
269 | &ftp'send( "PASS $remote_password" ); | |
270 | ||
271 | $val = &ftp'expect( $timeout, | |
272 | 230, "$remote_user logged in", 1, | |
273 | ||
274 | 202, "command not implemented", 0, | |
275 | 332, "account for login not supported", 0, | |
276 | ||
277 | 530, "not logged in", 0, | |
278 | 500, "syntax error", 0, | |
279 | 501, "syntax error", 0, | |
280 | 503, "bad sequence of commands", 0, | |
281 | ||
282 | 421, "service unavailable, closing connection", 0); | |
283 | if( $val == 1){ | |
284 | # Logged in | |
285 | return 1; | |
286 | } | |
287 | } | |
288 | # If I got here I failed to login | |
289 | return 0; | |
290 | } | |
291 | ||
292 | sub ftp'close | |
293 | { | |
294 | &ftp'quit(); | |
295 | &chat'close(); | |
296 | } | |
297 | ||
298 | # Change directory | |
299 | # return 1 if successful | |
300 | # 0 on a failure | |
301 | sub ftp'cwd | |
302 | { | |
303 | local( $dir ) = @_; | |
304 | ||
305 | &ftp'send( "CWD $dir" ); | |
306 | ||
307 | return &ftp'expect( $timeout, | |
308 | 200, "working directory = $dir", 1, | |
309 | 250, "working directory = $dir", 1, | |
310 | ||
311 | 500, "syntax error", 0, | |
312 | 501, "syntax error", 0, | |
313 | 502, "command not implemented", 0, | |
314 | 530, "not logged in", 0, | |
315 | 550, "cannot change directory", 0, | |
316 | 421, "service unavailable, closing connection", 0 ); | |
317 | } | |
318 | ||
319 | # Get a full directory listing: | |
320 | # &ftp'dir( remote LIST options ) | |
321 | # Start a list goin with the given options. | |
322 | # Presuming that the remote deamon uses the ls command to generate the | |
323 | # data to send back then then you can send it some extra options (eg: -lRa) | |
324 | # return 1 if sucessful and 0 on a failure | |
325 | sub ftp'dir_open | |
326 | { | |
327 | local( $options ) = @_; | |
328 | local( $ret ); | |
329 | ||
330 | if( ! &ftp'open_data_socket() ){ | |
331 | return 0; | |
332 | } | |
333 | ||
334 | if( $options ){ | |
335 | &ftp'send( "LIST $options" ); | |
336 | } | |
337 | else { | |
338 | &ftp'send( "LIST" ); | |
339 | } | |
340 | ||
341 | $ret = &ftp'expect( $timeout, | |
342 | 150, "reading directory", 1, | |
343 | ||
344 | 125, "data connection already open?", 0, | |
345 | ||
346 | 450, "file unavailable", 0, | |
347 | 500, "syntax error", 0, | |
348 | 501, "syntax error", 0, | |
349 | 502, "command not implemented", 0, | |
350 | 530, "not logged in", 0, | |
351 | ||
352 | 421, "service unavailable, closing connection", 0 ); | |
353 | if( ! $ret ){ | |
354 | &ftp'close_data_socket; | |
355 | return 0; | |
356 | } | |
357 | ||
358 | # | |
359 | # the data should be coming at us now | |
360 | # | |
361 | ||
362 | # now accept | |
363 | accept(NS,S) || die "accept failed $!"; | |
364 | ||
365 | return 1; | |
366 | } | |
367 | ||
368 | ||
369 | # Close down reading the result of a remote ls command | |
370 | # return 1 if successful and 0 on failure | |
371 | sub ftp'dir_close | |
372 | { | |
373 | local( $ret ); | |
374 | ||
375 | # read the close | |
376 | # | |
377 | $ret = &ftp'expect($timeout, | |
378 | 226, "", 1, # transfer complete, closing connection | |
379 | 250, "", 1, # action completed | |
380 | ||
381 | 425, "can't open data connection", 0, | |
382 | 426, "connection closed, transfer aborted", 0, | |
383 | 451, "action aborted, local error", 0, | |
384 | 421, "service unavailable, closing connection", 0); | |
385 | ||
386 | # shut down our end of the socket | |
387 | &ftp'close_data_socket; | |
388 | ||
389 | if( ! $ret ){ | |
390 | return 0; | |
391 | } | |
392 | ||
393 | return 1; | |
394 | } | |
395 | ||
396 | # Quit from the remote ftp server | |
397 | # return 1 if successful and 0 on failure | |
398 | sub ftp'quit | |
399 | { | |
400 | $site_command_check = 0; | |
401 | @site_command_list = (); | |
402 | ||
403 | &ftp'send("QUIT"); | |
404 | ||
405 | return &ftp'expect($timeout, | |
406 | 221, "Goodbye", 1, # transfer complete, closing connection | |
407 | ||
408 | 500, "error quitting??", 0); | |
409 | } | |
410 | ||
411 | sub ftp'read_alarm | |
412 | { | |
413 | die "timeout: read"; | |
414 | } | |
415 | ||
416 | sub ftp'timed_read | |
417 | { | |
418 | alarm( $timeout_read ); | |
419 | return sysread( NS, $buf, $ftpbufsize ); | |
420 | } | |
421 | ||
422 | sub ftp'read | |
423 | { | |
424 | $SIG{ 'ALRM' } = "ftp\'read_alarm"; | |
425 | ||
426 | local( $ret ) = eval '&timed_read()'; | |
427 | alarm( 0 ); | |
428 | ||
429 | if( $@ =~ /^timeout/ ){ | |
430 | return -1; | |
431 | } | |
432 | return $ret; | |
433 | } | |
434 | ||
435 | # Get a remote file back into a local file. | |
436 | # If no loc_fname passed then uses rem_fname. | |
437 | # returns 1 on success and 0 on failure | |
438 | sub ftp'get | |
439 | { | |
440 | local($rem_fname, $loc_fname, $restart ) = @_; | |
441 | ||
442 | if ($loc_fname eq "") { | |
443 | $loc_fname = $rem_fname; | |
444 | } | |
445 | ||
446 | if( ! &ftp'open_data_socket() ){ | |
447 | print STDERR "Cannot open data socket\n"; | |
448 | return 0; | |
449 | } | |
450 | ||
451 | if( $loc_fname ne '-' ){ | |
452 | # Find the size of the target file | |
453 | local( $restart_at ) = &ftp'filesize( $loc_fname ); | |
454 | if( $restart && $restart_at > 0 && &ftp'restart( $restart_at ) ){ | |
455 | $restart = 1; | |
456 | # Make sure the file can be updated | |
457 | chmod( 0644, $loc_fname ); | |
458 | } | |
459 | else { | |
460 | $restart = 0; | |
461 | unlink( $loc_fname ); | |
462 | } | |
463 | } | |
464 | ||
465 | &ftp'send( "RETR $rem_fname" ); | |
466 | ||
467 | local( $ret ) = | |
468 | &ftp'expect($timeout, | |
469 | 150, "receiving $rem_fname", 1, | |
470 | ||
471 | 125, "data connection already open?", 0, | |
472 | ||
473 | 450, "file unavailable", 2, | |
474 | 550, "file unavailable", 2, | |
475 | ||
476 | 500, "syntax error", 0, | |
477 | 501, "syntax error", 0, | |
478 | 530, "not logged in", 0, | |
479 | ||
480 | 421, "service unavailable, closing connection", 0); | |
481 | if( $ret != 1 ){ | |
482 | print STDERR "Failure on RETR command\n"; | |
483 | ||
484 | # shut down our end of the socket | |
485 | &ftp'close_data_socket; | |
486 | ||
487 | return 0; | |
488 | } | |
489 | ||
490 | # | |
491 | # the data should be coming at us now | |
492 | # | |
493 | ||
494 | # now accept | |
495 | accept(NS,S) || die "accept failed: $!"; | |
496 | ||
497 | # | |
498 | # open the local fname | |
499 | # concatenate on the end if restarting, else just overwrite | |
500 | if( !open(FH, ($restart ? '>>' : '>') . $loc_fname) ){ | |
501 | print STDERR "Cannot create local file $loc_fname\n"; | |
502 | ||
503 | # shut down our end of the socket | |
504 | &ftp'close_data_socket; | |
505 | ||
506 | return 0; | |
507 | } | |
508 | ||
509 | # while (<NS>) { | |
510 | # print FH ; | |
511 | # } | |
512 | ||
513 | local( $start_time ) = time; | |
514 | local( $bytes, $lasthash, $hashes ) = (0, 0, 0); | |
515 | while( ($len = &ftp'read()) > 0 ){ | |
516 | $bytes += $len; | |
517 | if( $strip_cr ){ | |
518 | $ftp'buf =~ s/\r//g; | |
519 | } | |
520 | if( $ftp_show ){ | |
521 | while( $bytes > ($lasthash + $ftp'hashevery) ){ | |
522 | print STDERR '#'; | |
523 | $lasthash += $ftp'hashevery; | |
524 | $hashes++; | |
525 | if( ($hashes % $ftp'hashnl) == 0 ){ | |
526 | print STDERR "\n"; | |
527 | } | |
528 | } | |
529 | } | |
530 | if( ! print FH $ftp'buf ){ | |
531 | print STDERR "\nfailed to write data"; | |
532 | return 0; | |
533 | } | |
534 | } | |
535 | close( FH ); | |
536 | ||
537 | # shut down our end of the socket | |
538 | &ftp'close_data_socket; | |
539 | ||
540 | if( $len < 0 ){ | |
541 | print STDERR "\ntimed out reading data!\n"; | |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
546 | if( $ftp_show ){ | |
547 | if( $hashes && ($hashes % $ftp'hashnl) != 0 ){ | |
548 | print STDERR "\n"; | |
549 | } | |
550 | local( $secs ) = (time - $start_time); | |
551 | if( $secs <= 0 ){ | |
552 | $secs = 1; # To avoid a divide by zero; | |
553 | } | |
554 | ||
555 | local( $rate ) = int( $bytes / $secs ); | |
556 | print STDERR "Got $bytes bytes ($rate bytes/sec)\n"; | |
557 | } | |
558 | ||
559 | # | |
560 | # read the close | |
561 | # | |
562 | ||
563 | $ret = &ftp'expect($timeout, | |
564 | 226, "Got file", 1, # transfer complete, closing connection | |
565 | 250, "Got file", 1, # action completed | |
566 | ||
567 | 110, "restart not supported", 0, | |
568 | 425, "can't open data connection", 0, | |
569 | 426, "connection closed, transfer aborted", 0, | |
570 | 451, "action aborted, local error", 0, | |
571 | 421, "service unavailable, closing connection", 0); | |
572 | ||
573 | return $ret; | |
574 | } | |
575 | ||
576 | sub ftp'delete | |
577 | { | |
578 | local( $rem_fname, $val ) = @_; | |
579 | ||
580 | &ftp'send("DELE $rem_fname" ); | |
581 | $val = &ftp'expect( $timeout, | |
582 | 250,"Deleted $rem_fname", 1, | |
583 | 550,"Permission denied",0 | |
584 | ); | |
585 | return $val == 1; | |
586 | } | |
587 | ||
588 | sub ftp'deldir | |
589 | { | |
590 | local( $fname ) = @_; | |
591 | ||
592 | # not yet implemented | |
593 | # RMD | |
594 | } | |
595 | ||
596 | # UPDATE ME!!!!!! | |
597 | # Add in the hash printing and newline conversion | |
598 | sub ftp'put | |
599 | { | |
600 | local( $loc_fname, $rem_fname ) = @_; | |
601 | local( $strip_cr ); | |
602 | ||
603 | if ($loc_fname eq "") { | |
604 | $loc_fname = $rem_fname; | |
605 | } | |
606 | ||
607 | if( ! &ftp'open_data_socket() ){ | |
608 | return 0; | |
609 | } | |
610 | ||
611 | &ftp'send("STOR $rem_fname"); | |
612 | ||
613 | # | |
614 | # the data should be coming at us now | |
615 | # | |
616 | ||
617 | local( $ret ) = | |
618 | &ftp'expect($timeout, | |
619 | 150, "sending $loc_fname", 1, | |
620 | ||
621 | 125, "data connection already open?", 0, | |
622 | 450, "file unavailable", 0, | |
623 | ||
624 | 532, "need account for storing files", 0, | |
625 | 452, "insufficient storage on system", 0, | |
626 | 553, "file name not allowed", 0, | |
627 | ||
628 | 500, "syntax error", 0, | |
629 | 501, "syntax error", 0, | |
630 | 530, "not logged in", 0, | |
631 | ||
632 | 421, "service unavailable, closing connection", 0); | |
633 | ||
634 | if( $ret != 1 ){ | |
635 | # shut down our end of the socket | |
636 | &ftp'close_data_socket; | |
637 | ||
638 | return 0; | |
639 | } | |
640 | ||
641 | ||
642 | # | |
643 | # the data should be coming at us now | |
644 | # | |
645 | ||
646 | # now accept | |
647 | accept(NS,S) || die "accept failed: $!"; | |
648 | ||
649 | # | |
650 | # open the local fname | |
651 | # | |
652 | if( !open(FH, "<$loc_fname") ){ | |
653 | print STDERR "Cannot open local file $loc_fname\n"; | |
654 | ||
655 | # shut down our end of the socket | |
656 | &ftp'close_data_socket; | |
657 | ||
658 | return 0; | |
659 | } | |
660 | ||
661 | while (<FH>) { | |
662 | print NS ; | |
663 | } | |
664 | close(FH); | |
665 | ||
666 | # shut down our end of the socket to signal EOF | |
667 | &ftp'close_data_socket; | |
668 | ||
669 | # | |
670 | # read the close | |
671 | # | |
672 | ||
673 | $ret = &ftp'expect($timeout, | |
674 | 226, "file put", 1, # transfer complete, closing connection | |
675 | 250, "file put", 1, # action completed | |
676 | ||
677 | 110, "restart not supported", 0, | |
678 | 425, "can't open data connection", 0, | |
679 | 426, "connection closed, transfer aborted", 0, | |
680 | 451, "action aborted, local error", 0, | |
681 | 551, "page type unknown", 0, | |
682 | 552, "storage allocation exceeded", 0, | |
683 | ||
684 | 421, "service unavailable, closing connection", 0); | |
685 | if( ! $ret ){ | |
686 | print STDERR "error putting $loc_fname\n"; | |
687 | } | |
688 | return $ret; | |
689 | } | |
690 | ||
691 | sub ftp'restart | |
692 | { | |
693 | local( $restart_point, $ret ) = @_; | |
694 | ||
695 | &ftp'send("REST $restart_point"); | |
696 | ||
697 | # | |
698 | # see what they say | |
699 | ||
700 | $ret = &ftp'expect($timeout, | |
701 | 350, "restarting at $restart_point", 1, | |
702 | ||
703 | 500, "syntax error", 0, | |
704 | 501, "syntax error", 0, | |
705 | 502, "REST not implemented", 2, | |
706 | 530, "not logged in", 0, | |
707 | 554, "REST not implemented", 2, | |
708 | ||
709 | 421, "service unavailable, closing connection", 0); | |
710 | return $ret; | |
711 | } | |
712 | ||
713 | # Set the file transfer type | |
714 | sub ftp'type | |
715 | { | |
716 | local( $type ) = @_; | |
717 | ||
718 | &ftp'send("TYPE $type"); | |
719 | ||
720 | # | |
721 | # see what they say | |
722 | ||
723 | $ret = &ftp'expect($timeout, | |
724 | 200, "file type set to $type", 1, | |
725 | ||
726 | 500, "syntax error", 0, | |
727 | 501, "syntax error", 0, | |
728 | 504, "Invalid form or byte size for type $type", 0, | |
729 | ||
730 | 421, "service unavailable, closing connection", 0); | |
731 | return $ret; | |
732 | } | |
733 | ||
734 | $site_command_check = 0; | |
735 | @site_command_list = (); | |
736 | ||
737 | # routine to query the remote server for 'SITE' commands supported | |
738 | sub ftp'site_commands | |
739 | { | |
740 | local( $ret ); | |
741 | ||
742 | # if we havent sent a 'HELP SITE', send it now | |
743 | if( !$site_command_check ){ | |
744 | ||
745 | $site_command_check = 1; | |
746 | ||
747 | &ftp'send( "HELP SITE" ); | |
748 | ||
749 | # assume the line in the HELP SITE response with the 'HELP' | |
750 | # command is the one for us | |
751 | $ret = &ftp'expect( $timeout, | |
752 | ".*HELP.*", "", "\$1", | |
753 | 214, "", "0", | |
754 | 202, "", "0" ); | |
755 | ||
756 | if( $ret eq "0" ){ | |
757 | print STDERR "No response from HELP SITE\n" if( $ftp_show ); | |
758 | } | |
759 | ||
760 | @site_command_list = split(/\s+/, $ret); | |
761 | } | |
762 | ||
763 | return @site_command_list; | |
764 | } | |
765 | ||
766 | # return the pwd, or null if we can't get the pwd | |
767 | sub ftp'pwd | |
768 | { | |
769 | local( $ret, $cwd ); | |
770 | ||
771 | &ftp'send( "PWD" ); | |
772 | ||
773 | # | |
774 | # see what they say | |
775 | ||
776 | $ret = &ftp'expect( $timeout, | |
777 | 257, "working dir is", 1, | |
778 | 500, "syntax error", 0, | |
779 | 501, "syntax error", 0, | |
780 | 502, "PWD not implemented", 0, | |
781 | 550, "file unavailable", 0, | |
782 | ||
783 | 421, "service unavailable, closing connection", 0 ); | |
784 | if( $ret ){ | |
785 | if( $ftp'response =~ /^257\s"(.*)"\s.*$/ ){ | |
786 | $cwd = $1; | |
787 | } | |
788 | } | |
789 | return $cwd; | |
790 | } | |
791 | ||
792 | # return 1 for success, 0 for failure | |
793 | sub ftp'mkdir | |
794 | { | |
795 | local( $path ) = @_; | |
796 | local( $ret ); | |
797 | ||
798 | &ftp'send( "MKD $path" ); | |
799 | ||
800 | # | |
801 | # see what they say | |
802 | ||
803 | $ret = &ftp'expect( $timeout, | |
804 | 257, "made directory $path", 1, | |
805 | ||
806 | 500, "syntax error", 0, | |
807 | 501, "syntax error", 0, | |
808 | 502, "MKD not implemented", 0, | |
809 | 530, "not logged in", 0, | |
810 | 550, "file unavailable", 0, | |
811 | ||
812 | 421, "service unavailable, closing connection", 0 ); | |
813 | return $ret; | |
814 | } | |
815 | ||
816 | # return 1 for success, 0 for failure | |
817 | sub ftp'chmod | |
818 | { | |
819 | local( $path, $mode ) = @_; | |
820 | local( $ret ); | |
821 | ||
822 | &ftp'send( sprintf( "SITE CHMOD %o $path", $mode ) ); | |
823 | ||
824 | # | |
825 | # see what they say | |
826 | ||
827 | $ret = &ftp'expect( $timeout, | |
828 | 200, "chmod $mode $path succeeded", 1, | |
829 | ||
830 | 500, "syntax error", 0, | |
831 | 501, "syntax error", 0, | |
832 | 502, "CHMOD not implemented", 0, | |
833 | 530, "not logged in", 0, | |
834 | 550, "file unavailable", 0, | |
835 | ||
836 | 421, "service unavailable, closing connection", 0 ); | |
837 | return $ret; | |
838 | } | |
839 | ||
840 | # rename a file | |
841 | sub ftp'rename | |
842 | { | |
843 | local( $old_name, $new_name ) = @_; | |
844 | local( $ret ); | |
845 | ||
846 | &ftp'send( "RNFR $old_name" ); | |
847 | ||
848 | # | |
849 | # see what they say | |
850 | ||
851 | $ret = &ftp'expect( $timeout, | |
852 | 350, "", 1, | |
853 | ||
854 | 500, "syntax error", 0, | |
855 | 501, "syntax error", 0, | |
856 | 502, "RNFR not implemented", 0, | |
857 | 530, "not logged in", 0, | |
858 | 550, "file unavailable", 0, | |
859 | 450, "file unavailable", 0, | |
860 | ||
861 | 421, "service unavailable, closing connection", 0); | |
862 | ||
863 | ||
864 | # check if the "rename from" occurred ok | |
865 | if( $ret ) { | |
866 | &ftp'send( "RNTO $new_name" ); | |
867 | ||
868 | # | |
869 | # see what they say | |
870 | ||
871 | $ret = &ftp'expect( $timeout, | |
872 | 250, "rename $old_name to $new_name", 1, | |
873 | ||
874 | 500, "syntax error", 0, | |
875 | 501, "syntax error", 0, | |
876 | 502, "RNTO not implemented", 0, | |
877 | 503, "bad sequence of commands", 0, | |
878 | 530, "not logged in", 0, | |
879 | 532, "need account for storing files", 0, | |
880 | 553, "file name not allowed", 0, | |
881 | ||
882 | 421, "service unavailable, closing connection", 0); | |
883 | } | |
884 | ||
885 | return $ret; | |
886 | } | |
887 | ||
888 | ||
889 | sub ftp'quote | |
890 | { | |
891 | local( $cmd ) = @_; | |
892 | ||
893 | &ftp'send( $cmd ); | |
894 | ||
895 | return &ftp'expect( $timeout, | |
896 | 200, "Remote '$cmd' OK", 1, | |
897 | 500, "error in remote '$cmd'", 0 ); | |
898 | } | |
899 | ||
900 | # ------------------------------------------------------------------------------ | |
901 | # These are the lower level support routines | |
902 | ||
903 | sub ftp'expectgot | |
904 | { | |
905 | ($ftp'response, $ftp'fatalerror) = @_; | |
906 | if( $ftp_show ){ | |
907 | print STDERR "$ftp'response\n"; | |
908 | } | |
909 | } | |
910 | ||
911 | # | |
912 | # create the list of parameters for chat'expect | |
913 | # | |
914 | # ftp'expect(time_out, {value, string_to_print, return value}); | |
915 | # if the string_to_print is "" then nothing is printed | |
916 | # the last response is stored in $ftp'response | |
917 | # | |
918 | # NOTE: lmjm has changed this code such that the string_to_print is | |
919 | # ignored and the string sent back from the remote system is printed | |
920 | # instead. | |
921 | # | |
922 | sub ftp'expect { | |
923 | local( $ret ); | |
924 | local( $time_out ); | |
925 | local( $expect_args ); | |
926 | ||
927 | $ftp'response = ''; | |
928 | $ftp'fatalerror = 0; | |
929 | ||
930 | @expect_args = (); | |
931 | ||
932 | $time_out = shift(@_); | |
933 | ||
934 | while( @_ ){ | |
935 | local( $code ) = shift( @_ ); | |
936 | local( $pre ) = '^'; | |
937 | if( $code =~ /^\d/ ){ | |
938 | $pre =~ "[.|\n]*^"; | |
939 | } | |
940 | push( @expect_args, "$pre(" . $code . " .*)\\015\\n" ); | |
941 | shift( @_ ); | |
942 | push( @expect_args, | |
943 | "&ftp'expectgot( \$1, 0 ); " . shift( @_ ) ); | |
944 | } | |
945 | ||
946 | # Treat all unrecognised lines as continuations | |
947 | push( @expect_args, "^(.*)\\015\\n" ); | |
948 | push( @expect_args, "&ftp'expectgot( \$1, 0 ); 100" ); | |
949 | ||
950 | # add patterns TIMEOUT and EOF | |
951 | ||
952 | push( @expect_args, 'TIMEOUT' ); | |
953 | push( @expect_args, "&ftp'expectgot( \"timed out\", 1 ); 0" ); | |
954 | ||
955 | push( @expect_args, 'EOF' ); | |
956 | push( @expect_args, "&ftp'expectgot( \"remote server gone away\", 1 ); 0" ); | |
957 | ||
958 | if( $ftp_show > 9 ){ | |
959 | &printargs( $time_out, @expect_args ); | |
960 | } | |
961 | ||
962 | $ret = &chat'expect( $time_out, @expect_args ); | |
963 | if( $ret == 100 ){ | |
964 | # we saw a continuation line, wait for the end | |
965 | push( @expect_args, "^.*\n" ); | |
966 | push( @expect_args, "100" ); | |
967 | ||
968 | while( $ret == 100 ){ | |
969 | $ret = &chat'expect( $time_out, @expect_args ); | |
970 | } | |
971 | } | |
972 | ||
973 | return $ret; | |
974 | } | |
975 | ||
976 | # | |
977 | # opens NS for io | |
978 | # | |
979 | sub ftp'open_data_socket | |
980 | { | |
981 | local( $ret ); | |
982 | local( $hostname ); | |
983 | local( $sockaddr, $name, $aliases, $proto, $port ); | |
984 | local( $type, $len, $thisaddr, $myaddr, $a, $b, $c, $d ); | |
985 | local( $mysockaddr, $family, $hi, $lo ); | |
986 | ||
987 | ||
988 | $sockaddr = 'S n a4 x8'; | |
989 | chop( $hostname = `hostname` ); | |
990 | ||
991 | $port = "ftp"; | |
992 | ||
993 | ($name, $aliases, $proto) = getprotobyname( 'tcp' ); | |
994 | ($name, $aliases, $port) = getservbyname( $port, 'tcp' ); | |
995 | ||
996 | # ($name, $aliases, $type, $len, $thisaddr) = | |
997 | # gethostbyname( $hostname ); | |
998 | ($a,$b,$c,$d) = unpack( 'C4', $chat'thisaddr ); | |
999 | ||
1000 | # $this = pack( $sockaddr, &main'AF_INET, 0, $thisaddr ); | |
1001 | $this = $chat'thisproc; | |
1002 | ||
1003 | socket(S, $pf_inet, $sock_stream, $proto ) || die "socket: $!"; | |
1004 | bind(S, $this) || die "bind: $!"; | |
1005 | ||
1006 | # get the port number | |
1007 | $mysockaddr = getsockname(S); | |
1008 | ($family, $port, $myaddr) = unpack( $sockaddr, $mysockaddr ); | |
1009 | ||
1010 | $hi = ($port >> 8) & 0x00ff; | |
1011 | $lo = $port & 0x00ff; | |
1012 | ||
1013 | # | |
1014 | # we MUST do a listen before sending the port otherwise | |
1015 | # the PORT may fail | |
1016 | # | |
1017 | listen( S, 5 ) || die "listen"; | |
1018 | ||
1019 | &ftp'send( "PORT $a,$b,$c,$d,$hi,$lo" ); | |
1020 | ||
1021 | return &ftp'expect($timeout, | |
1022 | 200, "PORT command successful", 1, | |
1023 | 250, "PORT command successful", 1 , | |
1024 | ||
1025 | 500, "syntax error", 0, | |
1026 | 501, "syntax error", 0, | |
1027 | 530, "not logged in", 0, | |
1028 | ||
1029 | 421, "service unavailable, closing connection", 0); | |
1030 | } | |
1031 | ||
1032 | sub ftp'close_data_socket | |
1033 | { | |
1034 | close(NS); | |
1035 | } | |
1036 | ||
1037 | sub ftp'send | |
1038 | { | |
1039 | local($send_cmd) = @_; | |
1040 | if( $send_cmd =~ /\n/ ){ | |
1041 | print STDERR "ERROR, \\n in send string for $send_cmd\n"; | |
1042 | } | |
1043 | ||
1044 | if( $ftp_show ){ | |
1045 | local( $sc ) = $send_cmd; | |
1046 | ||
1047 | if( $send_cmd =~ /^PASS/){ | |
1048 | $sc = "PASS <somestring>"; | |
1049 | } | |
1050 | print STDERR "---> $sc\n"; | |
1051 | } | |
1052 | ||
1053 | &chat'print( "$send_cmd\r\n" ); | |
1054 | } | |
1055 | ||
1056 | sub ftp'printargs | |
1057 | { | |
1058 | while( @_ ){ | |
1059 | print STDERR shift( @_ ) . "\n"; | |
1060 | } | |
1061 | } | |
1062 | ||
1063 | sub ftp'filesize | |
1064 | { | |
1065 | local( $fname ) = @_; | |
1066 | ||
1067 | if( ! -f $fname ){ | |
1068 | return -1; | |
1069 | } | |
1070 | ||
1071 | return (stat( _ ))[ 7 ]; | |
1072 | ||
1073 | } | |
1074 | ||
1075 | # make this package return true | |
1076 | 1; |