1 | #-*-perl-*- |
---|
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 | # |
---|
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: /afs/dev.mit.edu/source/repository/third/perl/lib/ftp.pl,v 1.1.1.2 2000-04-07 20:41:15 ghudson Exp $ |
---|
18 | # $Log: not supported by cvs2svn $ |
---|
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. |
---|
77 | # When ftp_show is set then print hashes every 1k transfered (like ftp). |
---|
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 | |
---|
100 | require 'chat2.pl'; # into main |
---|
101 | eval "require 'socket.ph'" || eval "require 'sys/socket.ph'" |
---|
102 | || die "socket.ph missing: $!\n"; |
---|
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 | { |
---|
153 | $ftp_show = $_[0]; |
---|
154 | # if( $ftp_show ){ |
---|
155 | # print STDERR "ftp debugging on\n"; |
---|
156 | # } |
---|
157 | } |
---|
158 | |
---|
159 | sub ftp'set_timeout |
---|
160 | { |
---|
161 | $timeout = $_[0]; |
---|
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 ){ |
---|
258 | &ftp'send( "USER $remote_user\@$site" ); |
---|
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 |
---|
333 | # data to send back then then you can send it some extra options (eg: -lRa) |
---|
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; |
---|