| 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: /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. |
| 77 | # When ftp_show is set then print hashes every 1k transferred (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; |