Update to CPANPLUS 0.87_01
[p5sagit/p5-mst-13.2.git] / lib / CPAN / FTP.pm
CommitLineData
f9916dde 1# -*- Mode: cperl; coding: utf-8; cperl-indent-level: 4 -*-
2# vim: ts=4 sts=4 sw=4:
3package CPAN::FTP;
4use strict;
5
6use Fcntl qw(:flock);
2f2071b1 7use File::Basename qw(dirname);
8use File::Path qw(mkpath);
f9916dde 9use CPAN::FTP::netrc;
10use vars qw($connect_to_internet_ok $Ua $Thesite $ThesiteURL $Themethod);
11@CPAN::FTP::ISA = qw(CPAN::Debug);
12
13use vars qw(
14 $VERSION
15);
16$VERSION = "5.5";
17
18#-> sub CPAN::FTP::ftp_statistics
19# if they want to rewrite, they need to pass in a filehandle
20sub _ftp_statistics {
21 my($self,$fh) = @_;
22 my $locktype = $fh ? LOCK_EX : LOCK_SH;
23 $fh ||= FileHandle->new;
24 my $file = File::Spec->catfile($CPAN::Config->{cpan_home},"FTPstats.yml");
2f2071b1 25 mkpath dirname $file;
f9916dde 26 open $fh, "+>>$file" or $CPAN::Frontend->mydie("Could not open '$file': $!");
27 my $sleep = 1;
28 my $waitstart;
29 while (!CPAN::_flock($fh, $locktype|LOCK_NB)) {
30 $waitstart ||= localtime();
31 if ($sleep>3) {
32 $CPAN::Frontend->mywarn("Waiting for a read lock on '$file' (since $waitstart)\n");
33 }
34 $CPAN::Frontend->mysleep($sleep);
35 if ($sleep <= 3) {
36 $sleep+=0.33;
37 } elsif ($sleep <=6) {
38 $sleep+=0.11;
39 }
40 }
41 my $stats = eval { CPAN->_yaml_loadfile($file); };
42 if ($@) {
43 if (ref $@) {
44 if (ref $@ eq "CPAN::Exception::yaml_not_installed") {
45 $CPAN::Frontend->myprint("Warning (usually harmless): $@");
46 return;
47 } elsif (ref $@ eq "CPAN::Exception::yaml_process_error") {
48 $CPAN::Frontend->mydie($@);
49 }
50 } else {
51 $CPAN::Frontend->mydie($@);
52 }
53 }
54 return $stats->[0];
55}
56
57#-> sub CPAN::FTP::_mytime
58sub _mytime () {
59 if (CPAN->has_inst("Time::HiRes")) {
60 return Time::HiRes::time();
61 } else {
62 return time;
63 }
64}
65
66#-> sub CPAN::FTP::_new_stats
67sub _new_stats {
68 my($self,$file) = @_;
69 my $ret = {
70 file => $file,
71 attempts => [],
72 start => _mytime,
73 };
74 $ret;
75}
76
77#-> sub CPAN::FTP::_add_to_statistics
78sub _add_to_statistics {
79 my($self,$stats) = @_;
80 my $yaml_module = CPAN::_yaml_module();
81 $self->debug("yaml_module[$yaml_module]") if $CPAN::DEBUG;
82 if ($CPAN::META->has_inst($yaml_module)) {
83 $stats->{thesiteurl} = $ThesiteURL;
84 $stats->{end} = CPAN::FTP::_mytime();
85 my $fh = FileHandle->new;
86 my $time = time;
87 my $sdebug = 0;
88 my @debug;
89 @debug = $time if $sdebug;
90 my $fullstats = $self->_ftp_statistics($fh);
91 close $fh;
92 $fullstats->{history} ||= [];
93 push @debug, scalar @{$fullstats->{history}} if $sdebug;
94 push @debug, time if $sdebug;
95 push @{$fullstats->{history}}, $stats;
96 # YAML.pm 0.62 is unacceptably slow with 999;
97 # YAML::Syck 0.82 has no noticable performance problem with 999;
98 my $ftpstats_size = $CPAN::Config->{ftpstats_size} || 99;
99 my $ftpstats_period = $CPAN::Config->{ftpstats_period} || 14;
100 while (
101 @{$fullstats->{history}} > $ftpstats_size
102 || $time - $fullstats->{history}[0]{start} > 86400*$ftpstats_period
103 ) {
104 shift @{$fullstats->{history}}
105 }
106 push @debug, scalar @{$fullstats->{history}} if $sdebug;
107 push @debug, time if $sdebug;
108 push @debug, scalar localtime($fullstats->{history}[0]{start}) if $sdebug;
109 # need no eval because if this fails, it is serious
110 my $sfile = File::Spec->catfile($CPAN::Config->{cpan_home},"FTPstats.yml");
111 CPAN->_yaml_dumpfile("$sfile.$$",$fullstats);
112 if ( $sdebug ) {
113 local $CPAN::DEBUG = 512; # FTP
114 push @debug, time;
115 CPAN->debug(sprintf("DEBUG history: before_read[%d]before[%d]at[%d]".
116 "after[%d]at[%d]oldest[%s]dumped backat[%d]",
117 @debug,
118 ));
119 }
120 # Win32 cannot rename a file to an existing filename
121 unlink($sfile) if ($^O eq 'MSWin32');
122 _copy_stat($sfile, "$sfile.$$") if -e $sfile;
123 rename "$sfile.$$", $sfile
124 or $CPAN::Frontend->mydie("Could not rename '$sfile.$$' to '$sfile': $!\n");
125 }
126}
127
128# Copy some stat information (owner, group, mode and) from one file to
129# another.
130# This is a utility function which might be moved to a utility repository.
131#-> sub CPAN::FTP::_copy_stat
132sub _copy_stat {
133 my($src, $dest) = @_;
134 my @stat = stat($src);
135 if (!@stat) {
136 $CPAN::Frontend->mywarn("Can't stat '$src': $!\n");
137 return;
138 }
139
140 eval {
141 chmod $stat[2], $dest
142 or $CPAN::Frontend->mywarn("Can't chmod '$dest' to " . sprintf("0%o", $stat[2]) . ": $!\n");
143 };
144 warn $@ if $@;
145 eval {
146 chown $stat[4], $stat[5], $dest
147 or do {
148 my $save_err = $!; # otherwise it's lost in the get... calls
149 $CPAN::Frontend->mywarn("Can't chown '$dest' to " .
150 (getpwuid($stat[4]))[0] . "/" .
151 (getgrgid($stat[5]))[0] . ": $save_err\n"
152 );
153 };
154 };
155 warn $@ if $@;
156}
157
158# if file is CHECKSUMS, suggest the place where we got the file to be
159# checked from, maybe only for young files?
160#-> sub CPAN::FTP::_recommend_url_for
161sub _recommend_url_for {
162 my($self, $file) = @_;
163 my $urllist = $self->_get_urllist;
164 if ($file =~ s|/CHECKSUMS(.gz)?$||) {
165 my $fullstats = $self->_ftp_statistics();
166 my $history = $fullstats->{history} || [];
167 while (my $last = pop @$history) {
168 last if $last->{end} - time > 3600; # only young results are interesting
169 next unless $last->{file}; # dirname of nothing dies!
2f2071b1 170 next unless $file eq dirname($last->{file});
f9916dde 171 return $last->{thesiteurl};
172 }
173 }
174 if ($CPAN::Config->{randomize_urllist}
175 &&
176 rand(1) < $CPAN::Config->{randomize_urllist}
177 ) {
178 $urllist->[int rand scalar @$urllist];
179 } else {
180 return ();
181 }
182}
183
184#-> sub CPAN::FTP::_get_urllist
185sub _get_urllist {
186 my($self) = @_;
187 $CPAN::Config->{urllist} ||= [];
188 unless (ref $CPAN::Config->{urllist} eq 'ARRAY') {
189 $CPAN::Frontend->mywarn("Malformed urllist; ignoring. Configuration file corrupt?\n");
190 $CPAN::Config->{urllist} = [];
191 }
192 my @urllist = grep { defined $_ and length $_ } @{$CPAN::Config->{urllist}};
193 for my $u (@urllist) {
194 CPAN->debug("u[$u]") if $CPAN::DEBUG;
195 if (UNIVERSAL::can($u,"text")) {
196 $u->{TEXT} .= "/" unless substr($u->{TEXT},-1) eq "/";
197 } else {
198 $u .= "/" unless substr($u,-1) eq "/";
199 $u = CPAN::URL->new(TEXT => $u, FROM => "USER");
200 }
201 }
202 \@urllist;
203}
204
205#-> sub CPAN::FTP::ftp_get ;
206sub ftp_get {
207 my($class,$host,$dir,$file,$target) = @_;
208 $class->debug(
209 qq[Going to fetch file [$file] from dir [$dir]
210 on host [$host] as local [$target]\n]
211 ) if $CPAN::DEBUG;
212 my $ftp = Net::FTP->new($host);
213 unless ($ftp) {
214 $CPAN::Frontend->mywarn(" Could not connect to host '$host' with Net::FTP\n");
215 return;
216 }
217 return 0 unless defined $ftp;
218 $ftp->debug(1) if $CPAN::DEBUG{'FTP'} & $CPAN::DEBUG;
219 $class->debug(qq[Going to login("anonymous","$Config::Config{cf_email}")]);
220 unless ( $ftp->login("anonymous",$Config::Config{'cf_email'}) ) {
221 my $msg = $ftp->message;
222 $CPAN::Frontend->mywarn(" Couldn't login on $host: $msg");
223 return;
224 }
225 unless ( $ftp->cwd($dir) ) {
226 my $msg = $ftp->message;
227 $CPAN::Frontend->mywarn(" Couldn't cwd $dir: $msg");
228 return;
229 }
230 $ftp->binary;
231 $class->debug(qq[Going to ->get("$file","$target")\n]) if $CPAN::DEBUG;
232 unless ( $ftp->get($file,$target) ) {
233 my $msg = $ftp->message;
234 $CPAN::Frontend->mywarn(" Couldn't fetch $file from $host: $msg");
235 return;
236 }
237 $ftp->quit; # it's ok if this fails
238 return 1;
239}
240
241# If more accuracy is wanted/needed, Chris Leach sent me this patch...
242
243 # > *** /install/perl/live/lib/CPAN.pm- Wed Sep 24 13:08:48 1997
244 # > --- /tmp/cp Wed Sep 24 13:26:40 1997
245 # > ***************
246 # > *** 1562,1567 ****
247 # > --- 1562,1580 ----
248 # > return 1 if substr($url,0,4) eq "file";
249 # > return 1 unless $url =~ m|://([^/]+)|;
250 # > my $host = $1;
251 # > + my $proxy = $CPAN::Config->{'http_proxy'} || $ENV{'http_proxy'};
252 # > + if ($proxy) {
253 # > + $proxy =~ m|://([^/:]+)|;
254 # > + $proxy = $1;
255 # > + my $noproxy = $CPAN::Config->{'no_proxy'} || $ENV{'no_proxy'};
256 # > + if ($noproxy) {
257 # > + if ($host !~ /$noproxy$/) {
258 # > + $host = $proxy;
259 # > + }
260 # > + } else {
261 # > + $host = $proxy;
262 # > + }
263 # > + }
264 # > require Net::Ping;
265 # > return 1 unless $Net::Ping::VERSION >= 2;
266 # > my $p;
267
268
269#-> sub CPAN::FTP::localize ;
270sub localize {
271 my($self,$file,$aslocal,$force) = @_;
272 $force ||= 0;
273 Carp::croak( "Usage: ->localize(cpan_file,as_local_file[,$force])" )
274 unless defined $aslocal;
2f2071b1 275 if ($CPAN::DEBUG){
276 require Carp;
277 my $longmess = Carp::longmess();
278 $self->debug("file[$file] aslocal[$aslocal] force[$force] carplongmess[$longmess]");
279 }
f9916dde 280 if ($^O eq 'MacOS') {
281 # Comment by AK on 2000-09-03: Uniq short filenames would be
282 # available in CHECKSUMS file
283 my($name, $path) = File::Basename::fileparse($aslocal, '');
284 if (length($name) > 31) {
285 $name =~ s/(
286 \.(
287 readme(\.(gz|Z))? |
288 (tar\.)?(gz|Z) |
289 tgz |
290 zip |
291 pm\.(gz|Z)
292 )
293 )$//x;
294 my $suf = $1;
295 my $size = 31 - length($suf);
296 while (length($name) > $size) {
297 chop $name;
298 }
299 $name .= $suf;
300 $aslocal = File::Spec->catfile($path, $name);
301 }
302 }
303
304 if (-f $aslocal && -r _ && !($force & 1)) {
305 my $size;
306 if ($size = -s $aslocal) {
307 $self->debug("aslocal[$aslocal]size[$size]") if $CPAN::DEBUG;
308 return $aslocal;
309 } else {
310 # empty file from a previous unsuccessful attempt to download it
311 unlink $aslocal or
312 $CPAN::Frontend->mydie("Found a zero-length '$aslocal' that I ".
313 "could not remove.");
314 }
315 }
316 my($maybe_restore) = 0;
317 if (-f $aslocal) {
318 rename $aslocal, "$aslocal.bak$$";
319 $maybe_restore++;
320 }
321
2f2071b1 322 my($aslocal_dir) = dirname($aslocal);
f9916dde 323 # Inheritance is not easier to manage than a few if/else branches
324 if ($CPAN::META->has_usable('LWP::UserAgent')) {
325 unless ($Ua) {
326 CPAN::LWP::UserAgent->config;
327 eval {$Ua = CPAN::LWP::UserAgent->new;}; # Why is has_usable still not fit enough?
328 if ($@) {
329 $CPAN::Frontend->mywarn("CPAN::LWP::UserAgent->new dies with $@\n")
330 if $CPAN::DEBUG;
331 } else {
332 my($var);
333 $Ua->proxy('ftp', $var)
334 if $var = $CPAN::Config->{ftp_proxy} || $ENV{ftp_proxy};
335 $Ua->proxy('http', $var)
336 if $var = $CPAN::Config->{http_proxy} || $ENV{http_proxy};
337 $Ua->no_proxy($var)
338 if $var = $CPAN::Config->{no_proxy} || $ENV{no_proxy};
339 }
340 }
341 }
342 for my $prx (qw(ftp_proxy http_proxy no_proxy)) {
343 $ENV{$prx} = $CPAN::Config->{$prx} if $CPAN::Config->{$prx};
344 }
345
346 # Try the list of urls for each single object. We keep a record
347 # where we did get a file from
348 my(@reordered,$last);
349 my $ccurllist = $self->_get_urllist;
350 $last = $#$ccurllist;
351 if ($force & 2) { # local cpans probably out of date, don't reorder
352 @reordered = (0..$last);
353 } else {
354 @reordered =
355 sort {
356 (substr($ccurllist->[$b],0,4) eq "file")
357 <=>
358 (substr($ccurllist->[$a],0,4) eq "file")
359 or
360 defined($ThesiteURL)
361 and
362 ($ccurllist->[$b] eq $ThesiteURL)
363 <=>
364 ($ccurllist->[$a] eq $ThesiteURL)
365 } 0..$last;
366 }
367 my(@levels);
368 $Themethod ||= "";
369 $self->debug("Themethod[$Themethod]reordered[@reordered]") if $CPAN::DEBUG;
370 my @all_levels = (
371 ["dleasy", "file"],
372 ["dleasy"],
373 ["dlhard"],
374 ["dlhardest"],
375 ["dleasy", "http","defaultsites"],
376 ["dlhard", "http","defaultsites"],
377 ["dleasy", "ftp", "defaultsites"],
378 ["dlhard", "ftp", "defaultsites"],
379 ["dlhardest","", "defaultsites"],
380 );
381 if ($Themethod) {
382 @levels = grep {$_->[0] eq $Themethod} @all_levels;
383 push @levels, grep {$_->[0] ne $Themethod} @all_levels;
384 } else {
385 @levels = @all_levels;
386 }
387 @levels = qw/dleasy/ if $^O eq 'MacOS';
388 my($levelno);
389 local $ENV{FTP_PASSIVE} =
390 exists $CPAN::Config->{ftp_passive} ?
391 $CPAN::Config->{ftp_passive} : 1;
392 my $ret;
393 my $stats = $self->_new_stats($file);
394 for ($CPAN::Config->{connect_to_internet_ok}) {
395 $connect_to_internet_ok = $_ if not defined $connect_to_internet_ok and defined $_;
396 }
397 LEVEL: for $levelno (0..$#levels) {
398 my $level_tuple = $levels[$levelno];
399 my($level,$scheme,$sitetag) = @$level_tuple;
2f2071b1 400 $self->mymkpath($aslocal_dir) unless $scheme && "file" eq $scheme;
f9916dde 401 my $defaultsites = $sitetag && $sitetag eq "defaultsites";
402 my @urllist;
403 if ($defaultsites) {
404 unless (defined $connect_to_internet_ok) {
405 $CPAN::Frontend->myprint(sprintf qq{
406I would like to connect to one of the following sites to get '%s':
407
408%s
409},
410 $file,
411 join("",map { " ".$_->text."\n" } @CPAN::Defaultsites),
412 );
413 my $answer = CPAN::Shell::colorable_makemaker_prompt("Is it OK to try to connect to the Internet?", "yes");
414 if ($answer =~ /^y/i) {
415 $connect_to_internet_ok = 1;
416 } else {
417 $connect_to_internet_ok = 0;
418 }
419 }
420 if ($connect_to_internet_ok) {
421 @urllist = @CPAN::Defaultsites;
422 } else {
2f2071b1 423 my $sleep = 2;
424 # the tricky thing about dying here is that everybody
425 # believes that calls to exists() or all_objects() are
426 # safe.
427 require CPAN::Exception::blocked_urllist;
428 die CPAN::Exception::blocked_urllist->new;
f9916dde 429 }
430 } else {
431 my @host_seq = $level =~ /dleasy/ ?
432 @reordered : 0..$last; # reordered has file and $Thesiteurl first
433 @urllist = map { $ccurllist->[$_] } @host_seq;
434 }
435 $self->debug("synth. urllist[@urllist]") if $CPAN::DEBUG;
436 my $aslocal_tempfile = $aslocal . ".tmp" . $$;
437 if (my $recommend = $self->_recommend_url_for($file)) {
438 @urllist = grep { $_ ne $recommend } @urllist;
439 unshift @urllist, $recommend;
440 }
441 $self->debug("synth. urllist[@urllist]") if $CPAN::DEBUG;
442 $ret = $self->hostdlxxx($level,$scheme,\@urllist,$file,$aslocal_tempfile,$stats);
443 if ($ret) {
444 CPAN->debug("ret[$ret]aslocal[$aslocal]") if $CPAN::DEBUG;
445 if ($ret eq $aslocal_tempfile) {
446 # if we got it exactly as we asked for, only then we
447 # want to rename
448 rename $aslocal_tempfile, $aslocal
449 or $CPAN::Frontend->mydie("Error while trying to rename ".
450 "'$ret' to '$aslocal': $!");
451 $ret = $aslocal;
452 }
453 $Themethod = $level;
454 my $now = time;
455 # utime $now, $now, $aslocal; # too bad, if we do that, we
456 # might alter a local mirror
457 $self->debug("level[$level]") if $CPAN::DEBUG;
458 last LEVEL;
459 } else {
460 unlink $aslocal_tempfile;
461 last if $CPAN::Signal; # need to cleanup
462 }
463 }
464 if ($ret) {
465 $stats->{filesize} = -s $ret;
466 }
467 $self->debug("before _add_to_statistics") if $CPAN::DEBUG;
468 $self->_add_to_statistics($stats);
469 $self->debug("after _add_to_statistics") if $CPAN::DEBUG;
470 if ($ret) {
471 unlink "$aslocal.bak$$";
472 return $ret;
473 }
474 unless ($CPAN::Signal) {
475 my(@mess);
476 local $" = " ";
477 if (@{$CPAN::Config->{urllist}}) {
478 push @mess,
479 qq{Please check, if the URLs I found in your configuration file \(}.
480 join(", ", @{$CPAN::Config->{urllist}}).
481 qq{\) are valid.};
482 } else {
483 push @mess, qq{Your urllist is empty!};
484 }
485 push @mess, qq{The urllist can be edited.},
486 qq{E.g. with 'o conf urllist push ftp://myurl/'};
487 $CPAN::Frontend->mywarn(Text::Wrap::wrap("","","@mess"). "\n\n");
488 $CPAN::Frontend->mywarn("Could not fetch $file\n");
489 $CPAN::Frontend->mysleep(2);
490 }
491 if ($maybe_restore) {
492 rename "$aslocal.bak$$", $aslocal;
493 $CPAN::Frontend->myprint("Trying to get away with old file:\n" .
494 $self->ls($aslocal));
495 return $aslocal;
496 }
497 return;
498}
499
500sub mymkpath {
501 my($self, $aslocal_dir) = @_;
2f2071b1 502 mkpath($aslocal_dir);
f9916dde 503 $CPAN::Frontend->mywarn(qq{Warning: You are not allowed to write into }.
504 qq{directory "$aslocal_dir".
505 I\'ll continue, but if you encounter problems, they may be due
506 to insufficient permissions.\n}) unless -w $aslocal_dir;
507}
508
509sub hostdlxxx {
510 my $self = shift;
511 my $level = shift;
512 my $scheme = shift;
513 my $h = shift;
514 $h = [ grep /^\Q$scheme\E:/, @$h ] if $scheme;
515 my $method = "host$level";
516 $self->$method($h, @_);
517}
518
519sub _set_attempt {
520 my($self,$stats,$method,$url) = @_;
521 push @{$stats->{attempts}}, {
522 method => $method,
523 start => _mytime,
524 url => $url,
525 };
526}
527
528# package CPAN::FTP;
c1413a7f 529sub hostdleasy { #called from hostdlxxx
f9916dde 530 my($self,$host_seq,$file,$aslocal,$stats) = @_;
531 my($ro_url);
532 HOSTEASY: for $ro_url (@$host_seq) {
533 $self->_set_attempt($stats,"dleasy",$ro_url);
534 my $url .= "$ro_url$file";
535 $self->debug("localizing perlish[$url]") if $CPAN::DEBUG;
536 if ($url =~ /^file:/) {
537 my $l;
538 if ($CPAN::META->has_inst('URI::URL')) {
539 my $u = URI::URL->new($url);
540 $l = $u->path;
541 } else { # works only on Unix, is poorly constructed, but
542 # hopefully better than nothing.
543 # RFC 1738 says fileurl BNF is
544 # fileurl = "file://" [ host | "localhost" ] "/" fpath
545 # Thanks to "Mark D. Baushke" <mdb@cisco.com> for
546 # the code
547 ($l = $url) =~ s|^file://[^/]*/|/|; # discard the host part
548 $l =~ s|^file:||; # assume they
549 # meant
550 # file://localhost
551 $l =~ s|^/||s
552 if ! -f $l && $l =~ m|^/\w:|; # e.g. /P:
553 }
554 $self->debug("local file[$l]") if $CPAN::DEBUG;
555 if ( -f $l && -r _) {
556 $ThesiteURL = $ro_url;
557 return $l;
558 }
559 if ($l =~ /(.+)\.gz$/) {
560 my $ungz = $1;
561 if ( -f $ungz && -r _) {
562 $ThesiteURL = $ro_url;
563 return $ungz;
564 }
565 }
566 # Maybe mirror has compressed it?
567 if (-f "$l.gz") {
568 $self->debug("found compressed $l.gz") if $CPAN::DEBUG;
569 eval { CPAN::Tarzip->new("$l.gz")->gunzip($aslocal) };
570 if ( -f $aslocal) {
571 $ThesiteURL = $ro_url;
572 return $aslocal;
573 }
574 }
575 $CPAN::Frontend->mywarn("Could not find '$l'\n");
576 }
577 $self->debug("it was not a file URL") if $CPAN::DEBUG;
578 if ($CPAN::META->has_usable('LWP')) {
579 $CPAN::Frontend->myprint("Fetching with LWP:
580 $url
581");
582 unless ($Ua) {
583 CPAN::LWP::UserAgent->config;
584 eval { $Ua = CPAN::LWP::UserAgent->new; };
585 if ($@) {
586 $CPAN::Frontend->mywarn("CPAN::LWP::UserAgent->new dies with $@\n");
587 }
588 }
589 my $res = $Ua->mirror($url, $aslocal);
590 if ($res->is_success) {
591 $ThesiteURL = $ro_url;
592 my $now = time;
593 utime $now, $now, $aslocal; # download time is more
594 # important than upload
595 # time
596 return $aslocal;
597 } elsif ($url !~ /\.gz(?!\n)\Z/) {
598 my $gzurl = "$url.gz";
599 $CPAN::Frontend->myprint("Fetching with LWP:
600 $gzurl
601");
602 $res = $Ua->mirror($gzurl, "$aslocal.gz");
603 if ($res->is_success) {
604 if (eval {CPAN::Tarzip->new("$aslocal.gz")->gunzip($aslocal)}) {
605 $ThesiteURL = $ro_url;
606 return $aslocal;
607 }
608 }
609 } else {
610 $CPAN::Frontend->myprint(sprintf(
611 "LWP failed with code[%s] message[%s]\n",
612 $res->code,
613 $res->message,
614 ));
615 # Alan Burlison informed me that in firewall environments
616 # Net::FTP can still succeed where LWP fails. So we do not
617 # skip Net::FTP anymore when LWP is available.
618 }
619 } else {
620 $CPAN::Frontend->mywarn(" LWP not available\n");
621 }
622 return if $CPAN::Signal;
623 if ($url =~ m|^ftp://(.*?)/(.*)/(.*)|) {
624 # that's the nice and easy way thanks to Graham
625 $self->debug("recognized ftp") if $CPAN::DEBUG;
626 my($host,$dir,$getfile) = ($1,$2,$3);
627 if ($CPAN::META->has_usable('Net::FTP')) {
628 $dir =~ s|/+|/|g;
629 $CPAN::Frontend->myprint("Fetching with Net::FTP:
630 $url
631");
632 $self->debug("getfile[$getfile]dir[$dir]host[$host]" .
633 "aslocal[$aslocal]") if $CPAN::DEBUG;
634 if (CPAN::FTP->ftp_get($host,$dir,$getfile,$aslocal)) {
635 $ThesiteURL = $ro_url;
636 return $aslocal;
637 }
638 if ($aslocal !~ /\.gz(?!\n)\Z/) {
639 my $gz = "$aslocal.gz";
640 $CPAN::Frontend->myprint("Fetching with Net::FTP
641 $url.gz
642");
643 if (CPAN::FTP->ftp_get($host,
644 $dir,
645 "$getfile.gz",
646 $gz) &&
647 eval{CPAN::Tarzip->new($gz)->gunzip($aslocal)}
648 ) {
649 $ThesiteURL = $ro_url;
650 return $aslocal;
651 }
652 }
653 # next HOSTEASY;
654 } else {
655 CPAN->debug("Net::FTP does not count as usable atm") if $CPAN::DEBUG;
656 }
657 }
658 if (
659 UNIVERSAL::can($ro_url,"text")
660 and
661 $ro_url->{FROM} eq "USER"
662 ) {
663 ##address #17973: default URLs should not try to override
664 ##user-defined URLs just because LWP is not available
665 my $ret = $self->hostdlhard([$ro_url],$file,$aslocal,$stats);
666 return $ret if $ret;
667 }
668 return if $CPAN::Signal;
669 }
670}
671
672# package CPAN::FTP;
673sub hostdlhard {
674 my($self,$host_seq,$file,$aslocal,$stats) = @_;
675
676 # Came back if Net::FTP couldn't establish connection (or
677 # failed otherwise) Maybe they are behind a firewall, but they
678 # gave us a socksified (or other) ftp program...
679
680 my($ro_url);
681 my($devnull) = $CPAN::Config->{devnull} || "";
682 # < /dev/null ";
2f2071b1 683 my($aslocal_dir) = dirname($aslocal);
684 mkpath($aslocal_dir);
f9916dde 685 HOSTHARD: for $ro_url (@$host_seq) {
686 $self->_set_attempt($stats,"dlhard",$ro_url);
687 my $url = "$ro_url$file";
688 my($proto,$host,$dir,$getfile);
689
690 # Courtesy Mark Conty mark_conty@cargill.com change from
691 # if ($url =~ m|^ftp://(.*?)/(.*)/(.*)|) {
692 # to
693 if ($url =~ m|^([^:]+)://(.*?)/(.*)/(.*)|) {
694 # proto not yet used
695 ($proto,$host,$dir,$getfile) = ($1,$2,$3,$4);
696 } else {
697 next HOSTHARD; # who said, we could ftp anything except ftp?
698 }
699 next HOSTHARD if $proto eq "file"; # file URLs would have had
700 # success above. Likely a bogus URL
701
702 $self->debug("localizing funkyftpwise[$url]") if $CPAN::DEBUG;
703
704 # Try the most capable first and leave ncftp* for last as it only
705 # does FTP.
706 my $proxy_vars = $self->_proxy_vars($ro_url);
707 DLPRG: for my $f (qw(curl wget lynx ncftpget ncftp)) {
708 my $funkyftp = CPAN::HandleConfig->safe_quote($CPAN::Config->{$f});
709 next unless defined $funkyftp;
710 next if $funkyftp =~ /^\s*$/;
711
712 my($asl_ungz, $asl_gz);
713 ($asl_ungz = $aslocal) =~ s/\.gz//;
714 $asl_gz = "$asl_ungz.gz";
715
716 my($src_switch) = "";
717 my($chdir) = "";
718 my($stdout_redir) = " > $asl_ungz";
719 if ($f eq "lynx") {
720 $src_switch = " -source";
721 } elsif ($f eq "ncftp") {
722 $src_switch = " -c";
723 } elsif ($f eq "wget") {
724 $src_switch = " -O $asl_ungz";
725 $stdout_redir = "";
726 } elsif ($f eq 'curl') {
727 $src_switch = ' -L -f -s -S --netrc-optional';
728 if ($proxy_vars->{http_proxy}) {
729 $src_switch .= qq{ -U "$proxy_vars->{proxy_user}:$proxy_vars->{proxy_pass}" -x "$proxy_vars->{http_proxy}"};
730 }
731 }
732
733 if ($f eq "ncftpget") {
734 $chdir = "cd $aslocal_dir && ";
735 $stdout_redir = "";
736 }
737 $CPAN::Frontend->myprint(
738 qq[
739Trying with "$funkyftp$src_switch" to get
740 "$url"
741]);
742 my($system) =
743 "$chdir$funkyftp$src_switch \"$url\" $devnull$stdout_redir";
744 $self->debug("system[$system]") if $CPAN::DEBUG;
745 my($wstatus) = system($system);
746 if ($f eq "lynx") {
747 # lynx returns 0 when it fails somewhere
748 if (-s $asl_ungz) {
749 my $content = do { local *FH;
750 open FH, $asl_ungz or die;
751 local $/;
752 <FH> };
753 if ($content =~ /^<.*(<title>[45]|Error [45])/si) {
754 $CPAN::Frontend->mywarn(qq{
755No success, the file that lynx has downloaded looks like an error message:
756$content
757});
758 $CPAN::Frontend->mysleep(1);
759 next DLPRG;
760 }
761 } else {
762 $CPAN::Frontend->myprint(qq{
763No success, the file that lynx has downloaded is an empty file.
764});
765 next DLPRG;
766 }
767 }
768 if ($wstatus == 0) {
769 if (-s $aslocal) {
770 # Looks good
771 } elsif ($asl_ungz ne $aslocal) {
772 # test gzip integrity
773 if (eval{CPAN::Tarzip->new($asl_ungz)->gtest}) {
774 # e.g. foo.tar is gzipped --> foo.tar.gz
775 rename $asl_ungz, $aslocal;
776 } else {
777 eval{CPAN::Tarzip->new($asl_gz)->gzip($asl_ungz)};
778 }
779 }
780 $ThesiteURL = $ro_url;
781 return $aslocal;
782 } elsif ($url !~ /\.gz(?!\n)\Z/) {
783 unlink $asl_ungz if
784 -f $asl_ungz && -s _ == 0;
785 my $gz = "$aslocal.gz";
786 my $gzurl = "$url.gz";
787 $CPAN::Frontend->myprint(
788 qq[
789 Trying with "$funkyftp$src_switch" to get
790 "$url.gz"
791 ]);
792 my($system) = "$funkyftp$src_switch \"$url.gz\" $devnull > $asl_gz";
793 $self->debug("system[$system]") if $CPAN::DEBUG;
794 my($wstatus);
795 if (($wstatus = system($system)) == 0
796 &&
797 -s $asl_gz
798 ) {
799 # test gzip integrity
800 my $ct = eval{CPAN::Tarzip->new($asl_gz)};
801 if ($ct && $ct->gtest) {
802 $ct->gunzip($aslocal);
803 } else {
804 # somebody uncompressed file for us?
805 rename $asl_ungz, $aslocal;
806 }
807 $ThesiteURL = $ro_url;
808 return $aslocal;
809 } else {
810 unlink $asl_gz if -f $asl_gz;
811 }
812 } else {
813 my $estatus = $wstatus >> 8;
814 my $size = -f $aslocal ?
815 ", left\n$aslocal with size ".-s _ :
816 "\nWarning: expected file [$aslocal] doesn't exist";
817 $CPAN::Frontend->myprint(qq{
818 Function system("$system")
819 returned status $estatus (wstat $wstatus)$size
820 });
821 }
822 return if $CPAN::Signal;
823 } # transfer programs
824 } # host
825}
826
827#-> CPAN::FTP::_proxy_vars
828sub _proxy_vars {
829 my($self,$url) = @_;
830 my $ret = +{};
831 my $http_proxy = $CPAN::Config->{'http_proxy'} || $ENV{'http_proxy'};
832 if ($http_proxy) {
833 my($host) = $url =~ m|://([^/:]+)|;
834 my $want_proxy = 1;
835 my $noproxy = $CPAN::Config->{'no_proxy'} || $ENV{'no_proxy'} || "";
836 my @noproxy = split /\s*,\s*/, $noproxy;
837 if ($host) {
838 DOMAIN: for my $domain (@noproxy) {
839 if ($host =~ /\Q$domain\E$/) { # cf. LWP::UserAgent
840 $want_proxy = 0;
841 last DOMAIN;
842 }
843 }
844 } else {
845 $CPAN::Frontend->mywarn(" Could not determine host from http_proxy '$http_proxy'\n");
846 }
847 if ($want_proxy) {
848 my($user, $pass) =
849 &CPAN::LWP::UserAgent::get_proxy_credentials();
850 $ret = {
851 proxy_user => $user,
852 proxy_pass => $pass,
853 http_proxy => $http_proxy
854 };
855 }
856 }
857 return $ret;
858}
859
860# package CPAN::FTP;
861sub hostdlhardest {
862 my($self,$host_seq,$file,$aslocal,$stats) = @_;
863
864 return unless @$host_seq;
865 my($ro_url);
2f2071b1 866 my($aslocal_dir) = dirname($aslocal);
867 mkpath($aslocal_dir);
f9916dde 868 my $ftpbin = $CPAN::Config->{ftp};
869 unless ($ftpbin && length $ftpbin && MM->maybe_command($ftpbin)) {
870 $CPAN::Frontend->myprint("No external ftp command available\n\n");
871 return;
872 }
873 $CPAN::Frontend->mywarn(qq{
c1413a7f 874As a last resort we now switch to the external ftp command '$ftpbin'
f9916dde 875to get '$aslocal'.
876
877Doing so often leads to problems that are hard to diagnose.
878
879If you're the victim of such problems, please consider unsetting the
880ftp config variable with
881
882 o conf ftp ""
883 o conf commit
884
885});
886 $CPAN::Frontend->mysleep(2);
887 HOSTHARDEST: for $ro_url (@$host_seq) {
888 $self->_set_attempt($stats,"dlhardest",$ro_url);
889 my $url = "$ro_url$file";
890 $self->debug("localizing ftpwise[$url]") if $CPAN::DEBUG;
891 unless ($url =~ m|^ftp://(.*?)/(.*)/(.*)|) {
892 next;
893 }
894 my($host,$dir,$getfile) = ($1,$2,$3);
895 my $timestamp = 0;
896 my($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,
897 $ctime,$blksize,$blocks) = stat($aslocal);
898 $timestamp = $mtime ||= 0;
899 my($netrc) = CPAN::FTP::netrc->new;
900 my($netrcfile) = $netrc->netrc;
901 my($verbose) = $CPAN::DEBUG{'FTP'} & $CPAN::DEBUG ? " -v" : "";
902 my $targetfile = File::Basename::basename($aslocal);
903 my(@dialog);
904 push(
905 @dialog,
906 "lcd $aslocal_dir",
907 "cd /",
908 map("cd $_", split /\//, $dir), # RFC 1738
909 "bin",
910 "get $getfile $targetfile",
911 "quit"
912 );
913 if (! $netrcfile) {
914 CPAN->debug("No ~/.netrc file found") if $CPAN::DEBUG;
915 } elsif ($netrc->hasdefault || $netrc->contains($host)) {
916 CPAN->debug(sprintf("hasdef[%d]cont($host)[%d]",
917 $netrc->hasdefault,
918 $netrc->contains($host))) if $CPAN::DEBUG;
919 if ($netrc->protected) {
920 my $dialog = join "", map { " $_\n" } @dialog;
921 my $netrc_explain;
922 if ($netrc->contains($host)) {
923 $netrc_explain = "Relying that your .netrc entry for '$host' ".
924 "manages the login";
925 } else {
926 $netrc_explain = "Relying that your default .netrc entry ".
927 "manages the login";
928 }
929 $CPAN::Frontend->myprint(qq{
930 Trying with external ftp to get
931 '$url'
932 $netrc_explain
933 Going to send the dialog
934$dialog
935}
936 );
937 $self->talk_ftp("$ftpbin$verbose $host",
938 @dialog);
939 ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
940 $atime,$mtime,$ctime,$blksize,$blocks) = stat($aslocal);
941 $mtime ||= 0;
942 if ($mtime > $timestamp) {
943 $CPAN::Frontend->myprint("GOT $aslocal\n");
944 $ThesiteURL = $ro_url;
945 return $aslocal;
946 } else {
947 $CPAN::Frontend->myprint("Hmm... Still failed!\n");
948 }
949 return if $CPAN::Signal;
950 } else {
951 $CPAN::Frontend->mywarn(qq{Your $netrcfile is not }.
952 qq{correctly protected.\n});
953 }
954 } else {
955 $CPAN::Frontend->mywarn("Your ~/.netrc neither contains $host
956 nor does it have a default entry\n");
957 }
958
959 # OK, they don't have a valid ~/.netrc. Use 'ftp -n'
960 # then and login manually to host, using e-mail as
961 # password.
962 $CPAN::Frontend->myprint(qq{Issuing "$ftpbin$verbose -n"\n});
963 unshift(
964 @dialog,
965 "open $host",
966 "user anonymous $Config::Config{'cf_email'}"
967 );
968 my $dialog = join "", map { " $_\n" } @dialog;
969 $CPAN::Frontend->myprint(qq{
970 Trying with external ftp to get
971 $url
972 Going to send the dialog
973$dialog
974}
975 );
976 $self->talk_ftp("$ftpbin$verbose -n", @dialog);
977 ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
978 $atime,$mtime,$ctime,$blksize,$blocks) = stat($aslocal);
979 $mtime ||= 0;
980 if ($mtime > $timestamp) {
981 $CPAN::Frontend->myprint("GOT $aslocal\n");
982 $ThesiteURL = $ro_url;
983 return $aslocal;
984 } else {
985 $CPAN::Frontend->myprint("Bad luck... Still failed!\n");
986 }
987 return if $CPAN::Signal;
988 $CPAN::Frontend->mywarn("Can't access URL $url.\n\n");
989 $CPAN::Frontend->mysleep(2);
990 } # host
991}
992
993# package CPAN::FTP;
994sub talk_ftp {
995 my($self,$command,@dialog) = @_;
996 my $fh = FileHandle->new;
997 $fh->open("|$command") or die "Couldn't open ftp: $!";
998 foreach (@dialog) { $fh->print("$_\n") }
999 $fh->close; # Wait for process to complete
1000 my $wstatus = $?;
1001 my $estatus = $wstatus >> 8;
1002 $CPAN::Frontend->myprint(qq{
1003Subprocess "|$command"
1004 returned status $estatus (wstat $wstatus)
1005}) if $wstatus;
1006}
1007
1008# find2perl needs modularization, too, all the following is stolen
1009# from there
1010# CPAN::FTP::ls
1011sub ls {
1012 my($self,$name) = @_;
1013 my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$sizemm,
1014 $atime,$mtime,$ctime,$blksize,$blocks) = lstat($name);
1015
1016 my($perms,%user,%group);
1017 my $pname = $name;
1018
1019 if ($blocks) {
1020 $blocks = int(($blocks + 1) / 2);
1021 }
1022 else {
1023 $blocks = int(($sizemm + 1023) / 1024);
1024 }
1025
1026 if (-f _) { $perms = '-'; }
1027 elsif (-d _) { $perms = 'd'; }
1028 elsif (-c _) { $perms = 'c'; $sizemm = &sizemm; }
1029 elsif (-b _) { $perms = 'b'; $sizemm = &sizemm; }
1030 elsif (-p _) { $perms = 'p'; }
1031 elsif (-S _) { $perms = 's'; }
1032 else { $perms = 'l'; $pname .= ' -> ' . readlink($_); }
1033
1034 my(@rwx) = ('---','--x','-w-','-wx','r--','r-x','rw-','rwx');
1035 my(@moname) = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
1036 my $tmpmode = $mode;
1037 my $tmp = $rwx[$tmpmode & 7];
1038 $tmpmode >>= 3;
1039 $tmp = $rwx[$tmpmode & 7] . $tmp;
1040 $tmpmode >>= 3;
1041 $tmp = $rwx[$tmpmode & 7] . $tmp;
1042 substr($tmp,2,1) =~ tr/-x/Ss/ if -u _;
1043 substr($tmp,5,1) =~ tr/-x/Ss/ if -g _;
1044 substr($tmp,8,1) =~ tr/-x/Tt/ if -k _;
1045 $perms .= $tmp;
1046
1047 my $user = $user{$uid} || $uid; # too lazy to implement lookup
1048 my $group = $group{$gid} || $gid;
1049
1050 my($sec,$min,$hour,$mday,$mon,$year) = localtime($mtime);
1051 my($timeyear);
1052 my($moname) = $moname[$mon];
1053 if (-M _ > 365.25 / 2) {
1054 $timeyear = $year + 1900;
1055 }
1056 else {
1057 $timeyear = sprintf("%02d:%02d", $hour, $min);
1058 }
1059
1060 sprintf "%5lu %4ld %-10s %2d %-8s %-8s %8s %s %2d %5s %s\n",
1061 $ino,
1062 $blocks,
1063 $perms,
1064 $nlink,
1065 $user,
1066 $group,
1067 $sizemm,
1068 $moname,
1069 $mday,
1070 $timeyear,
1071 $pname;
1072}
1073
10741;