Girocco/Project.pm

   1 package Girocco::Project;
   2
   3 use strict;
   4 use warnings;
   5
   6 BEGIN {
   7         use Girocco::CGI;
   8         use Girocco::User;
   9         use Girocco::Util;
  10         use Girocco::HashUtil;
  11         use Girocco::ProjPerm;
  12         use Girocco::Config;
  13         use base ('Girocco::ProjPerm::'.$Girocco::Config::permission_control); # mwahaha
  14 }
  15
  16 BEGIN {
  17         eval {
  18                 require Digest::SHA;
  19                 Digest::SHA->import(
  20                         qw(sha1_hex)
  21         );1} ||
  22         eval {
  23                 require Digest::SHA1;
  24                 Digest::SHA1->import(
  25                         qw(sha1_hex)
  26         );1} ||
  27         eval {
  28                 require Digest::SHA::PurePerl;
  29                 Digest::SHA::PurePerl->import(
  30                         qw(sha1_hex)
  31         );1} ||
  32         die "One of Digest::SHA or Digest::SHA1 or Digest::SHA::PurePerl "
  33         . "must be available\n";
  34 }
  35
  36 our $metadata_fields = {
  37         homepage => ['Homepage URL', 'hp', 'text'],
  38         shortdesc => ['Short description', 'desc', 'text'],
  39         README => ['<span style="display:inline-block;vertical-align:top">'.
  40                 'README (HTML, &lt; 8 KiB)<br />leave blank for automatic</span>',
  41                 'README', 'textarea', 'Enter only &#x201c;<!-- comments -->&#x201d; '.
  42                 'to completely suppress any README'],
  43         notifymail => ['Commit notify &#x2013; mail to', 'notifymail', 'text',
  44                 'comma separated address list'],
  45         notifytag => ['Tag notify &#x2013; mail to', 'notifytag', 'text',
  46                 'comma separated address list &#x2013; if not empty, tag '.
  47                 'notifications are sent here INSTEAD of to '.
  48                 '&#x201c;Commit notify &#x2013; mail to&#x201d; address(es)'],
  49         notifyjson => ['Commit notify &#x2013; '.
  50                 '<a title="'.html_esc('single field name is &#x201c;payload&#x201d;', 1).'" href="'.
  51                 'https://developer.github.com/v3/activity/events/types/#pushevent'.
  52                 '">POST JSON</a> at', 'notifyjson', 'text'],
  53         notifycia =>  ['Commit notify &#x2013; <a href="http://cia.vc/doc/">CIA project</a> name',
  54                 'notifycia', 'text', 'CIA is defunct &#x2013; this value is ignored'],
  55 };
  56
  57 sub _mkdir_forkees {
  58         my $self = shift;
  59         my @pelems = split('/', $self->{name});
  60         pop @pelems; # do not create dir for the project itself
  61         my $path = $self->{base_path};
  62         foreach my $pelem (@pelems) {
  63                 $path .= "/$pelem";
  64                 (-d "$path") or mkdir $path or die "mkdir $path: $!";
  65                 chmod 02775, $path; # ok if fails (dir may already exist and be owned by someone else)
  66         }
  67 }
  68
  69 # With a leading ':' get from project local config replacing ':' with 'gitweb.'
  70 # With a leading '%' get from project local config after removing '%'
  71 # Otherwise it's a project file name to be loaded
  72 # %propmapro entries are loaded but never written
  73
  74 our %propmap = (
  75         url => ':baseurl',
  76         email => ':owner',
  77         desc => 'description',
  78         README => 'README.html',
  79         hp => ':homepage',
  80         notifymail => '%hooks.mailinglist',
  81         notifytag => '%hooks.announcelist',
  82         notifyjson => '%hooks.jsonurl',
  83         notifycia => '%hooks.cianame',
  84 );
  85
  86 our %propmapro = (
  87         lastchange => ':lastchange',
  88         lastactivity => 'info/lastactivity',
  89         lastgc => ':lastgc',
  90         lastreceive => ':lastreceive',
  91         lastparentgc => ':lastparentgc',
  92         lastrefresh => ':lastrefresh',
  93         creationtime => '%girocco.creationtime',
  94         reposizek => '%girocco.reposizek',
  95         origurl => ':baseurl',
  96 );
  97
  98 # Projects with any of these names will be disallowed to avoid possible
  99 # collisions with cgi script paths or chroot paths
 100 our %reservedprojectnames = (
 101         b => 1,         # /b/ -> bundle.cgi
 102         c => 1,         # /c/ -> cgit
 103         h => 1,         # /h/ -> html.cgi
 104         r => 1,         # /r/ -> git http
 105         w => 1,         # /w/ -> gitweb
 106         srv => 1,       # /srv/git/ -> chroot ssh git repositories
 107 );
 108
 109 sub _update_index {
 110         my $self = shift;
 111         system("$Girocco::Config::basedir/gitweb/genindex.sh", $self->{name});
 112 }
 113
 114 sub _readlocalconfigfile {
 115         my $self = shift;
 116         my $undefonerr = shift || 0;
 117         delete $self->{configfilehash};
 118         my $configfile = get_git("--git-dir=$self->{path}",
 119                                 'config', '--list', '--local', '--null');
 120         my $result = 1;
 121         defined($configfile) || $undefonerr or $result = 0, $configfile = '';
 122         return undef unless defined($configfile);
 123         my %config = map({split(/\n/, $_=~/\n/?$_:"$_\ntrue", 2)} split(/\x00/, $configfile));
 124         $self->{configfilehash} = \%config;
 125         return $result;
 126 }
 127
 128 # @_[0]: argument to convert to boolean result (0 or 1)
 129 # @_[1]: value to use if argument is undef (default is 0)
 130 # Returns 0 or 1
 131 sub _boolval {
 132         my ($val, $def) = @_;
 133         defined($def) or $def = 0;
 134         defined($val) or $val = $def;
 135         $val =~ s/\s+//gs;
 136         $val = lc($val);
 137         return 0 if $val eq '' || $val eq 'false' || $val eq 'off' || $val =~ /^0+$/;
 138         return 1;
 139 }
 140
 141 sub _property_path {
 142         my $self = shift;
 143         my ($name) = @_;
 144         $self->{path}.'/'.$name;
 145 }
 146
 147 sub _property_fget {
 148         my $self = shift;
 149         my ($name) = @_;
 150         my $pname = $propmap{$name};
 151         $pname = $propmapro{$name} unless $pname;
 152         $pname or die "unknown property: $name";
 153         if ($pname =~ /^([:%])(.*)$/) {
 154                 my ($where, $pname) = ($1,lc($2));
 155                 $self->_readlocalconfigfile
 156                         unless ref($self->{configfilehash}) eq 'HASH';
 157                 my $val = $where eq ':' ?
 158                         $self->{configfilehash}->{"gitweb.$pname"} :
 159                         $self->{configfilehash}->{$pname};
 160                 defined($val) or $val = '';
 161                 chomp $val;
 162                 return $val;
 163         }
 164
 165         open my $p, '<', $self->_property_path($pname) or return undef;
 166         my @value = <$p>;
 167         close $p;
 168         my $value = join('', @value); chomp $value;
 169         $value;
 170 }
 171
 172 sub _property_fput {
 173         my $self = shift;
 174         my ($name, $value) = @_;
 175         my $pname = $propmap{$name};
 176         $pname or die "unknown property: $name";
 177         $value ||= '';
 178         if ($pname =~ s/^://) {
 179                 system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', "gitweb.$pname", $value);
 180                 return;
 181         } elsif ($pname =~ s/^%//) {
 182                 system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', $pname, $value);
 183                 return;
 184         }
 185
 186         my $P = lock_file($self->_property_path($pname));
 187         chomp $value;
 188         $value ne '' and print $P "$value\n";
 189         close $P;
 190         unlock_file($self->_property_path($pname));
 191 }
 192
 193 sub _cleanup_readme {
 194         my $self = shift;
 195         defined($self->{README}) or $self->{README} = '';
 196         $self->{README} =~ s/\r\n?/\n/gs;
 197         $self->{README} =~ s/^\s+//s;
 198         $self->{README} =~ s/\s+$//s;
 199         $self->{README} eq '' or $self->{README} .= "\n";
 200 }
 201
 202 sub _lint_readme {
 203         my $self = shift;
 204         return () unless defined($self->{README}) && $self->{README} ne '';
 205         my $test = '<html xmlns="http://www.w3.org/1999/xhtml"><body><div>';
 206         $test .= $self->{README};
 207         $test .= '</div></body></html>';
 208         my ($code, $errors) = capture_command(2, $test, 'xmllint', '--nonet',
 209                 '--noout', '--nowarning', '-');
 210         return () unless $code;
 211         my @errs = ();
 212         my $err = '';
 213         for my $line (split(/\n/, $errors)) {
 214                 $line = html_esc($line);
 215                 $line =~ s/ /\&#160;/gs;
 216                 if ($line =~ /^-(:\d+:.*)$/) {
 217                         push @errs, $err if $err;
 218                         $err = '<tt>README' . $1 . '</tt>';
 219                 } else {
 220                         $err .= '<br />' if $err;
 221                         $err .= '<tt>' . $line . '</tt>';
 222                 }
 223         }
 224         push @errs, $err if $err;
 225         return @errs;
 226 }
 227
 228 sub _properties_load {
 229         my $self = shift;
 230         foreach my $prop (keys %propmap) {
 231                 $self->{$prop} = $self->_property_fget($prop);
 232         }
 233         foreach my $prop (keys %propmapro) {
 234                 $self->{$prop} = $self->_property_fget($prop);
 235         }
 236         $self->_readlocalconfigfile
 237                 unless ref($self->{configfilehash}) eq 'HASH';
 238         $self->{statusupdates} = _boolval($self->{configfilehash}->{'gitweb.statusupdates'}, 1);
 239         delete $self->{auth};
 240         my $val = $self->{configfilehash}->{'gitweb.repoauth'};
 241         defined($val) or $val = '';
 242         chomp $val;
 243         if ($val =~ /^# ([A-Z]+)AUTH ([0-9a-f]+) (\d+)/) {
 244                 my $expire = $3;
 245                 if (time < $expire) {
 246                         $self->{authtype} = $1;
 247                         $self->{auth} = $2;
 248                 }
 249         }
 250         $self->_cleanup_readme;
 251         delete $self->{configfilehash};
 252 }
 253
 254 sub _properties_save {
 255         my $self = shift;
 256         my $fd;
 257         foreach my $prop (keys %propmap) {
 258                 $self->_property_fput($prop, $self->{$prop});
 259         }
 260         $self->{statusupdates} = 1
 261                 unless defined($self->{statusupdates}) && $self->{statusupdates} =~ /^\d+$/;
 262         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', '--bool',
 263                 "gitweb.statusupdates", $self->{statusupdates});
 264         if (defined($self->{origurl}) && defined($self->{url}) &&
 265             $self->{origurl} ne $self->{url} && -e $self->_property_path(".banged")) {
 266                 if (open($fd, '>', $self->_property_path(".bangagain"))) {
 267                         close $fd;
 268                         chmod(0664, $self->_property_path(".bangagain"));
 269                 }
 270         }
 271 }
 272
 273 sub _nofetch_path {
 274         my $self = shift;
 275         $self->_property_path('.nofetch');
 276 }
 277
 278 sub _nofetch {
 279         my $self = shift;
 280         my ($nofetch) = @_;
 281         my $nf = $self->_nofetch_path;
 282         if ($nofetch) {
 283                 open my $x, '>', $nf or die "nofetch failed: $!";
 284                 close $x;
 285         } else {
 286                 unlink $nf or die "yesfetch failed: $!";
 287         }
 288 }
 289
 290 sub _gcp_path {
 291         my $self = shift;
 292         $self->_property_path('.gc_in_progress');
 293 }
 294
 295 sub _clonelog_path {
 296         my $self = shift;
 297         $self->_property_path('.clonelog');
 298 }
 299
 300 sub _clonefail_path {
 301         my $self = shift;
 302         $self->_property_path('.clone_failed');
 303 }
 304
 305 sub _clonep_path {
 306         my $self = shift;
 307         $self->_property_path('.clone_in_progress');
 308 }
 309
 310 sub _clonep {
 311         my $self = shift;
 312         my ($nofetch) = @_;
 313         my $np = $self->_clonep_path;
 314         if ($nofetch) {
 315                 open my $x, '>', $np or die "clonep failed: $!";
 316                 close $x;
 317         } else {
 318                 unlink $np or die "clonef failed: $!";
 319         }
 320 }
 321 sub _alternates_setup {
 322         my $self = shift;
 323         return unless $self->{name} =~ m#/#;
 324         my $forkee_name = get_forkee_name($self->{name});
 325         my $forkee_path = get_forkee_path($self->{name});
 326         return unless -d $forkee_path;
 327         mkdir $self->{path}.'/refs'; chmod 02775, $self->{path}.'/refs';
 328         mkdir $self->{path}.'/objects'; chmod 02775, $self->{path}.'/objects';
 329         mkdir $self->{path}.'/objects/info'; chmod 02775, $self->{path}.'/objects/info';
 330
 331         # We set up both alternates and http_alternates since we cannot use
 332         # relative path in alternates - that doesn't work recursively.
 333
 334         my $filename = $self->{path}.'/objects/info/alternates';
 335         open my $x, '>', $filename or die "alternates failed: $!";
 336         print $x "$forkee_path/objects\n";
 337         close $x;
 338         chmod 0664, $filename or warn "cannot chmod $filename: $!";
 339
 340         if ($Girocco::Config::httppullurl) {
 341                 $filename = $self->{path}.'/objects/info/http-alternates';
 342                 open my $x, '>', $filename or die "http-alternates failed: $!";
 343                 my $upfork = $forkee_name;
 344                 do { print $x "$Girocco::Config::httppullurl/$upfork.git/objects\n"; } while ($upfork =~ s#/?.+?$## and $upfork); #
 345                 close $x;
 346                 chmod 0664, $filename or warn "cannot chmod $filename: $!";
 347         }
 348
 349         # copy lastactivity from the parent project
 350         if (open $x, '<', $forkee_path.'/info/lastactivity') {{
 351                 my $activity = <$x>;
 352                 close $x;
 353                 last unless $activity;
 354                 open $x, '>', $self->{path}.'/info/lastactivity' or last;
 355                 print $x $activity;
 356                 close $x;
 357                 chomp $activity;
 358                 $self->{'lastactivity'} = $activity;
 359         }}
 360
 361         # copy refs from parent project
 362         local *SAVEOUT;
 363         open(SAVEOUT, ">&STDOUT") || die "couldn't dup STDOUT: $!";
 364         my $result = open(STDOUT, '>', "$self->{path}/packed-refs");
 365         my $resultstr = $!;
 366         if (!$result) {
 367                 open(STDOUT, ">&SAVEOUT") || die "couldn't dup SAVEOUT to STDOUT: $!";
 368                 close(SAVEOUT) or die "couldn't close SAVEOUT: $!";
 369                 die "could not write fork's packed-refs file: $resultstr";
 370         }
 371         system($Girocco::Config::git_bin, "--git-dir=$forkee_path", 'for-each-ref', '--format=%(objectname) %(refname)');
 372         $result = close(STDOUT);
 373         $resultstr = $!;
 374         open(STDOUT, ">&SAVEOUT") || die "couldn't dup SAVEOUT to STDOUT: $!";
 375         close(SAVEOUT) or die "couldn't close SAVEOUT: $!";
 376         $result or die "could not close fork's packed-refs file: $resultstr";
 377         unlink("$self->{path}/.delaygc") if -s "$self->{path}/packed-refs";
 378
 379         # initialize HEAD
 380         my $HEAD = get_git("--git-dir=$forkee_path", 'symbolic-ref', 'HEAD');
 381         defined($HEAD) && $HEAD =~ m,^refs/heads/., or $HEAD = 'refs/heads/master';
 382         chomp $HEAD;
 383         system($Girocco::Config::git_bin, "--git-dir=$self->{path}", 'symbolic-ref', 'HEAD', $HEAD);
 384         chmod 0664, "$self->{path}/packed-refs", "$self->{path}/HEAD";
 385 }
 386
 387 sub _set_changed {
 388         my $self = shift;
 389         my $fd;
 390         open $fd, '>', "$self->{path}/htmlcache/changed" and close $fd;
 391 }
 392
 393 sub _set_forkchange {
 394         my $self = shift;
 395         my $changedtoo = shift;
 396         return unless $self->{name} =~ m#/#;
 397         my $forkee_path = get_forkee_path($self->{name});
 398         return unless -d $forkee_path;
 399         # mark forkee as changed
 400         my $fd;
 401         open $fd, '>', $forkee_path.'/htmlcache/changed' and close $fd if $changedtoo;
 402         open $fd, '>', $forkee_path.'/htmlcache/forkchange' and close $fd;
 403         return if -e $forkee_path.'/htmlcache/summary.forkchange';
 404         open $fd, '>', $forkee_path.'/htmlcache/summary.forkchange' and close $fd;
 405 }
 406
 407 sub _ctags_setup {
 408         my $self = shift;
 409         my $perms = $Girocco::Config::permission_control eq 'Hooks' ? 02777 : 02775;
 410         mkdir $self->{path}.'/ctags'; chmod $perms, $self->{path}.'/ctags';
 411 }
 412
 413 sub _group_add {
 414         my $self = shift;
 415         my ($xtra) = @_;
 416         $xtra .= join(',', @{$self->{users}});
 417         filedb_atomic_append(jailed_file('/etc/group'),
 418                 join(':', $self->{name}, $self->{crypt}, '\i', $xtra));
 419 }
 420
 421 sub _group_update {
 422         my $self = shift;
 423         my $xtra = join(',', @{$self->{users}});
 424         filedb_atomic_edit(jailed_file('/etc/group'),
 425                 sub {
 426                         $_ = $_[0];
 427                         chomp;
 428                         if ($self->{name} eq (split /:/)[0]) {
 429                                 # preserve readonly flag
 430                                 s/::([^:]*)$/:$1/ and $xtra = ":$xtra";
 431                                 return join(':', $self->{name}, $self->{crypt}, $self->{gid}, $xtra)."\n";
 432                         } else {
 433                                 return "$_\n";
 434                         }
 435                 }
 436         );
 437 }
 438
 439 sub _group_remove {
 440         my $self = shift;
 441         filedb_atomic_edit(jailed_file('/etc/group'),
 442                 sub {
 443                         $self->{name} ne (split /:/)[0] and return $_;
 444                 }
 445         );
 446 }
 447
 448 sub _hook_path {
 449         my $self = shift;
 450         my ($name) = @_;
 451         $self->{path}.'/hooks/'.$name;
 452 }
 453
 454 sub _hook_install {
 455         my $self = shift;
 456         my ($name) = @_;
 457         my $hooksdir = $self->{path}.'/hooks';
 458         my $oldmask = umask();
 459         umask($oldmask & ~0070);
 460         -d $hooksdir or mkdir $hooksdir or
 461           die "hooks directory does not exist and unable to create it for project " . $self->{name} . ": $!";
 462         umask($oldmask);
 463         open my $src, '<', "$Girocco::Config::basedir/hooks/$name" or die "cannot open hook $name: $!";
 464         open my $dst, '>', $self->_hook_path($name) or die "cannot open hook $name for writing: $!";
 465         while (<$src>) { print $dst $_; }
 466         close $dst;
 467         close $src;
 468         chmod 0775, $self->_hook_path($name) or die "cannot chmod hook $name: $!";
 469 }
 470
 471 sub _hooks_install {
 472         my $self = shift;
 473         foreach my $hook ('pre-receive', 'post-receive', 'update') {
 474                 $self->_hook_install($hook);
 475         }
 476 }
 477
 478 # private constructor, do not use
 479 sub _new {
 480         my $class = shift;
 481         my ($name, $base_path, $path) = @_;
 482         does_exist($name,1) || valid_name($name) or die "refusing to create project with invalid name ($name)!";
 483         $path ||= "$base_path/$name.git";
 484         my $proj = { name => $name, base_path => $base_path, path => $path };
 485
 486         bless $proj, $class;
 487 }
 488
 489 # public constructor #0
 490 # creates a virtual project not connected to disk image
 491 # you can conjure() it later to disk
 492 sub ghost {
 493         my $class = shift;
 494         my ($name, $mirror) = @_;
 495         my $self = $class->_new($name, $Girocco::Config::reporoot);
 496         $self->{users} = [];
 497         $self->{mirror} = $mirror;
 498         $self->{email} = $self->{orig_email} = '';
 499         $self;
 500 }
 501
 502 # public constructor #1
 503 sub load {
 504         my $class = shift;
 505         my $name = shift || '';
 506
 507         open my $fd, '<', jailed_file("/etc/group") or die "project load failed: $!";
 508         my $r = qr/^\Q$name\E:/;
 509         foreach (grep /$r/, <$fd>) {
 510                 chomp;
 511
 512                 my $self = $class->_new($name, $Girocco::Config::reporoot);
 513                 (-d $self->{path} && $self->_readlocalconfigfile(1))
 514                         or die "invalid path (".$self->{path}.") for project ".$self->{name};
 515
 516                 my $ulist;
 517                 (undef, $self->{crypt}, $self->{gid}, $ulist) = split /:/;
 518                 $ulist ||= '';
 519                 $self->{users} = [split /,/, $ulist];
 520                 $self->{HEAD} = $self->get_HEAD;
 521                 $self->{orig_HEAD} = $self->{HEAD};
 522                 $self->{orig_users} = [@{$self->{users}}];
 523                 $self->{mirror} = ! -e $self->_nofetch_path;
 524                 $self->{gc_in_progress} = -e $self->_gcp_path;
 525                 $self->{clone_in_progress} = -e $self->_clonep_path;
 526                 $self->{clone_logged} = -e $self->_clonelog_path;
 527                 $self->{clone_failed} = -e $self->_clonefail_path;
 528                 $self->{ccrypt} = $self->{crypt};
 529
 530                 $self->_properties_load;
 531                 $self->{orig_email} = $self->{email};
 532                 $self->{loaded} = 1; # indicates self was loaded from etc/group file
 533                 close $fd;
 534                 return $self;
 535         }
 536         close $fd;
 537         undef;
 538 }
 539
 540 # $proj may not be in sane state if this returns false!
 541 # fields listed in %$metadata_fields that are NOT also
 542 # in @Girocco::Config::project_fields are totally ignored!
 543 sub cgi_fill {
 544         my $self = shift;
 545         my ($gcgi) = @_;
 546         my $cgi = $gcgi->cgi;
 547         my %allowedfields = map({$_ => 1} @Girocco::Config::project_fields);
 548         my $field_enabled = sub {
 549                 !exists($metadata_fields->{$_[0]}) || exists($allowedfields{$_[0]})};
 550
 551         my ($pwd, $pwd2) = ($cgi->param('pwd'), $cgi->param('pwd2'));
 552         # in case passwords are disabled
 553         defined($pwd) or $pwd = ''; defined($pwd2) or $pwd = '';
 554         if ($Girocco::Config::project_passwords and not $self->{crypt} and $pwd eq '' and $pwd2 eq '') {
 555                 $gcgi->err("Empty passwords are not permitted.");
 556         }
 557         if ($pwd ne '' or not $self->{crypt}) {
 558                 $self->{crypt} = scrypt_sha1($pwd);
 559         }
 560         if (($pwd ne '' || $pwd2 ne '') and $pwd ne $pwd2) {
 561                 $gcgi->err("Our high-paid security consultants have determined that the admin passwords you have entered do not match each other.");
 562         }
 563
 564         $self->{cpwd} = $cgi->param('cpwd');
 565
 566         my ($forkee,$project) = ($self->{name} =~ m#^(.*/)?([^/]+)$#);
 567         my $newtype = $forkee ? 'fork' : 'project';
 568         length($project) <= 64
 569                 or $gcgi->err("The $newtype name is longer than 64 characters. Do you really need that much?");
 570
 571         if ($Girocco::Config::project_owners eq 'email') {
 572                 $self->{email} = $gcgi->wparam('email');
 573                 valid_email($self->{email})
 574                         or $gcgi->err("Your email sure looks weird...?");
 575                 length($self->{email}) <= 96
 576                         or $gcgi->err("Your email is longer than 96 characters. Do you really need that much?");
 577         }
 578
 579         $self->{url} = $gcgi->wparam('url');
 580         if ($self->{url}) {
 581                 valid_repo_url($self->{url})
 582                         or $gcgi->err("Invalid URL. Note that only HTTP and Git protocols are supported. If the URL contains funny characters, contact me.");
 583                 if ($Girocco::Config::restrict_mirror_hosts) {
 584                         my $mh = extract_url_hostname($self->{url});
 585                         is_dns_hostname($mh)
 586                                 or $gcgi->err("Invalid URL. Note that only DNS names are allowed, not IP addresses.");
 587                         !is_our_hostname($mh)
 588                                 or $gcgi->err("Invalid URL. Mirrors from this host are not allowed, please create a fork instead.");
 589                 }
 590         }
 591
 592         if ($field_enabled->('desc')) {
 593                 $self->{desc} = to_utf8($gcgi->wparam('desc'), 1);
 594                 length($self->{desc}) <= 1024
 595                         or $gcgi->err("<b>Short</b> description length &gt; 1kb!");
 596         }
 597
 598         if ($field_enabled->('README')) {
 599                 $self->{README} = to_utf8($gcgi->wparam('README'), 1);
 600                 $self->_cleanup_readme;
 601                 length($self->{README}) <= 8192
 602                         or $gcgi->err("README length &gt; 8kb!");
 603                 my @errs = ();
 604                 @errs = $self->_lint_readme if $gcgi->ok && $Girocco::Config::xmllint_readme;
 605                 map {$gcgi->err($_); ()} @errs;
 606         }
 607
 608         if ($field_enabled->('hp')) {
 609                 $self->{hp} = $gcgi->wparam('hp');
 610                 if ($self->{hp}) {
 611                         valid_web_url($self->{hp})
 612                                 or $gcgi->err("Invalid homepage URL. Note that only HTTP protocol is supported. If the URL contains funny characters, contact me.");
 613                 }
 614         }
 615
 616         my %users = ();
 617         my @users = ();
 618         foreach my $user ($cgi->param('user')) {
 619                 if (!exists($users{$user})) {
 620                         $users{$user} = 1;
 621                         push(@users, $user) if Girocco::User::does_exist($user, 1);
 622                 }
 623         }
 624         $self->{users} = \@users;
 625
 626         $self->{HEAD} = $cgi->param('HEAD') if $cgi->param('HEAD');
 627
 628         # schedule deletion of tags (will be committed by update() after auth)
 629         $self->{tags_to_delete} = [$cgi->param('tags')];
 630
 631         if ($field_enabled->('notifymail')) {
 632                 $self->{notifymail} = $gcgi->wparam('notifymail');
 633                 if ($self->{notifymail}) {
 634                         (valid_email_multi($self->{notifymail}) and length($self->{notifymail}) <= 512)
 635                                 or $gcgi->err("Invalid notify e-mail address. Use mail,mail to specify multiple addresses; total length must not exceed 512 characters, however.");
 636                 }
 637         }
 638
 639         if ($field_enabled->('notifytag')) {
 640                 $self->{notifytag} = $gcgi->wparam('notifytag');
 641                 if ($self->{notifytag}) {
 642                         (valid_email_multi($self->{notifytag}) and length($self->{notifytag}) <= 512)
 643                                 or $gcgi->err("Invalid notify e-mail address. Use mail,mail to specify multiple addresses; total length must not exceed 512 characters, however.");
 644                 }
 645         }
 646
 647         if ($field_enabled->('notifyjson')) {
 648                 $self->{notifyjson} = $gcgi->wparam('notifyjson');
 649                 if ($self->{notifyjson}) {
 650                         valid_web_url($self->{notifyjson})
 651                                 or $gcgi->err("Invalid JSON notify URL. Note that only HTTP protocol is supported. If the URL contains funny characters, contact me.");
 652                 }
 653         }
 654
 655         if ($field_enabled->('notifycia')) {
 656                 $self->{notifycia} = $gcgi->wparam('notifycia');
 657                 if ($self->{notifycia}) {
 658                         $self->{notifycia} =~ /^[a-zA-Z0-9._-]+$/
 659                                 or $gcgi->err("Overly suspicious CIA notify project name. If it's actually valid, don't contact me, CIA is defunct.");
 660                 }
 661         }
 662
 663         if ($cgi->param('setstatusupdates')) {
 664                 my $val = $gcgi->wparam('statusupdates') || '0';
 665                 $self->{statusupdates} = $val ? 1 : 0;
 666         }
 667
 668         not $gcgi->err_check;
 669 }
 670
 671 sub form_defaults {
 672         my $self = shift;
 673         (
 674                 name => $self->{name},
 675                 email => $self->{email},
 676                 url => $self->{url},
 677                 desc => html_esc($self->{desc}),
 678                 README => html_esc($self->{README}),
 679                 hp => $self->{hp},
 680                 users => $self->{users},
 681                 notifymail => html_esc($self->{notifymail}),
 682                 notifytag => html_esc($self->{notifytag}),
 683                 notifyjson => html_esc($self->{notifyjson}),
 684                 notifycia => html_esc($self->{notifycia}),
 685         );
 686 }
 687
 688 # return true if $enc_passwd is a match for $plain_passwd
 689 my $_check_passwd_match = sub {
 690         my $enc_passwd = shift;
 691         my $plain_passwd = shift;
 692         defined($enc_passwd) or $enc_passwd = '';
 693         defined($plain_passwd) or $plain_passwd = '';
 694         # $enc_passwd may be crypt or crypt_sha1
 695         if ($enc_passwd =~ m(^\$sha1\$(\d+)\$([./0-9A-Za-z]{1,64})\$[./0-9A-Za-z]{28}$)) {
 696                 # It's using sha1-crypt
 697                 return $enc_passwd eq crypt_sha1($plain_passwd, $2, -(0+$1));
 698         } else {
 699                 # It's using crypt
 700                 return $enc_passwd eq crypt($plain_passwd, $enc_passwd);
 701         }
 702 };
 703
 704 sub authenticate {
 705         my $self = shift;
 706         my ($gcgi) = @_;
 707
 708         $self->{ccrypt} or die "Can't authenticate against a project with no password";
 709         defined($self->{cpwd}) or $self->{cpwd} = '';
 710         unless ($_check_passwd_match->($self->{ccrypt}, $self->{cpwd})) {
 711                 $gcgi->err("Your admin password does not match!");
 712                 return 0;
 713         }
 714         return 1;
 715 }
 716
 717 # return true if the password from the file is empty or consists of all the same
 718 # character.  However, if the project was NOT loaded from the group file
 719 # (!self->{loaded}) then the password is never locked.
 720 # This function does NOT check $Girocco::Config::project_passwords, the caller
 721 # is responsible for doing so if desired.  Same for $self->{email}.
 722 sub is_password_locked {
 723         my $self = shift;
 724
 725         $self->{loaded} or return 0;
 726         my $testcrypt = $self->{ccrypt}; # The value from the group file
 727         defined($testcrypt) or $testcrypt = '';
 728         $testcrypt ne '' or return 1; # No password at all
 729         $testcrypt =~ /^(.)\1*$/ and return 1; # Bogus crypt value
 730         return 0; # Not locked
 731 }
 732
 733 sub _setup {
 734         use POSIX qw(strftime);
 735         my $self = shift;
 736         my ($pushers) = @_;
 737         my $fd;
 738
 739         $self->_mkdir_forkees;
 740
 741         my $gid;
 742         mkdir($self->{path}) or die "mkdir $self->{path} failed: $!";
 743         if ($Girocco::Config::owning_group) {
 744                 $gid = scalar(getgrnam($Girocco::Config::owning_group));
 745                 chown(-1, $gid, $self->{path}) or die "chgrp $gid $self->{path} failed: $!";
 746                 chmod(02775, $self->{path}) or die "chmod 02775 $self->{path} failed: $!";
 747         } else {
 748                 chmod(02777, $self->{path}) or die "chmod 02777 $self->{path} failed: $!";
 749         }
 750         $ENV{'GIT_TEMPLATE_DIR'} = $Girocco::Config::chroot.'/var/empty';
 751         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'init', '--quiet', '--bare', '--shared='.$self->shared_mode()) == 0
 752                 or die "git init $self->{path} failed: $?";
 753         # we don't need these two, remove them (they will normally be created empty) if they exist
 754         rmdir $self->{path}."/branches";
 755         rmdir $self->{path}."/remotes";
 756         -d $self->{path}."/info" or mkdir $self->{path}."/info"
 757                 or die "info directory does not exist and unable to create it: $!";
 758         -d $self->{path}."/hooks" or mkdir $self->{path}."/hooks"
 759                 or die "hooks directory does not exist and unable to create it: $!";
 760         # clean out any kruft that may have come in from the initial template directory
 761         foreach my $cleandir (qw(hooks info)) {
 762                 if (opendir my $hooksdir, $self->{path}.'/'.$cleandir) {
 763                         unlink map "$self->{path}/$_", grep { $_ ne '.' && $_ ne '..' } readdir $hooksdir;
 764                         closedir $hooksdir;
 765                 }
 766         }
 767         if ($Girocco::Config::owning_group) {
 768                 chown(-1, $gid, $self->{path}."/hooks") or die "chgrp $gid $self->{path}/hooks failed: $!";
 769         }
 770         # hooks never world writable
 771         chmod 02775, $self->{path}."/hooks" or die "chmod 02775 $self->{path}/hooks failed: $!";
 772         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'core.logallrefupdates', 'false') == 0
 773                 or die "disabling core.logallrefupdates failed: $?";
 774         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.denyNonFastforwards', 'false') == 0
 775                 or die "disabling receive.denyNonFastforwards failed: $?";
 776         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'gc.auto', '0') == 0
 777                 or die "disabling gc.auto failed: $?";
 778         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.autogc', '0') == 0
 779                 or die "disabling receive.autogc failed: $?";
 780         my ($S,$M,$H,$d,$m,$y) = gmtime(time());
 781         $self->{creationtime} = strftime("%Y-%m-%dT%H:%M:%SZ", $S, $M, $H, $d, $m, $y, -1, -1, -1);
 782         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'girocco.creationtime', $self->{creationtime}) == 0
 783                 or die "setting girocco.creationtime failed: $?";
 784         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.updateserverinfo', 'true') == 0
 785                 or die "enabling receive.updateserverinfo failed: $?";
 786         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'repack.writebitmaps', 'true') == 0
 787                 or die "enabling repack.writebitmaps failed: $?";
 788         -d $self->{path}."/htmlcache" or mkdir $self->{path}."/htmlcache"
 789                 or die "htmlcache directory does not exist and unable to create it: $!";
 790         -d $self->{path}."/bundles" or mkdir $self->{path}."/bundles"
 791                 or die "bundles directory does not exist and unable to create it: $!";
 792         foreach my $file (qw(info/lastactivity .delaygc)) {
 793                 if (open $fd, '>', $self->{path}."/".$file) {
 794                         close $fd;
 795                         chmod 0664, $self->{path}."/".$file;
 796                 }
 797         }
 798
 799         # /info must have right permissions,
 800         # and git init didn't do it for some reason.
 801         # config must have correct permissions.
 802         # and Git 2.1.0 - 2.2.1 incorrectly add +x for some reason.
 803         # also make sure /refs, /objects and /htmlcache are correct too.
 804         my ($dmode, $dmodestr, $fmode, $fmodestr);
 805         if ($Girocco::Config::owning_group) {
 806                 ($dmode, $dmodestr) = (02775, '02775');
 807                 ($fmode, $fmodestr) = (0664,  '0664');
 808         } else {
 809                 ($dmode, $dmodestr) = (02777, '02777');
 810                 ($fmode, $fmodestr) = (0666,  '0666');
 811         }
 812         foreach my $dir (qw(info refs objects htmlcache bundles)) {
 813                 chmod($dmode, $self->{path}."/$dir") or die "chmod $dmodestr $self->{path}/$dir failed: $!";
 814         }
 815         foreach my $file (qw(config)) {
 816                 chmod($fmode, $self->{path}."/$file") or die "chmod $fmodestr $self->{path}/$file failed: $!";
 817         }
 818         # these ones are probably not strictly required but are nice to have
 819         foreach my $dir (qw(refs/heads refs/tags objects/info objects/pack)) {
 820                 -d $self->{path}."/$dir" or mkdir $self->{path}."/$dir";
 821                 chmod($dmode, $self->{path}."/$dir");
 822         }
 823
 824         $self->_properties_save;
 825         $self->_alternates_setup;
 826         $self->_ctags_setup;
 827         $self->_group_remove;
 828         $self->_group_add($pushers);
 829         $self->_hooks_install;
 830         $self->_update_index;
 831         $self->_set_changed;
 832         $self->_set_forkchange(1);
 833 }
 834
 835 sub premirror {
 836         my $self = shift;
 837
 838         $self->_setup(':');
 839         $self->_clonep(1);
 840         $self->perm_initialize;
 841 }
 842
 843 sub conjure {
 844         my $self = shift;
 845
 846         $self->_setup;
 847         $self->_nofetch(1);
 848         if ($Girocco::Config::mob && $Girocco::Config::mob eq "mob") {
 849                 system("$Girocco::Config::basedir/bin/create-personal-mob-area", $self->{name}) == 0
 850                         or die "create-personal-mob-area $self->{name} failed";
 851         }
 852         $self->perm_initialize;
 853 }
 854
 855 sub clone {
 856         my $self = shift;
 857
 858         unlink ($self->_clonefail_path()); # Ignore EEXIST error
 859         unlink ($self->_clonelog_path()); # Ignore EEXIST error
 860
 861         use IO::Socket;
 862         my $sock = IO::Socket::UNIX->new($Girocco::Config::chroot.'/etc/taskd.socket') or die "cannot connect to taskd.socket: $!";
 863         $sock->print("clone ".$self->{name}."\n");
 864         # Just ignore reply, we are going to succeed anyway and the I/O
 865         # would apparently get quite hairy.
 866         $sock->flush();
 867         sleep 2; # *cough*
 868         $sock->close();
 869 }
 870
 871 sub update {
 872         my $self = shift;
 873
 874         $self->_properties_save;
 875         $self->_group_update;
 876
 877         if (exists($self->{tags_to_delete})) {
 878                 $self->delete_ctag($_) foreach(@{$self->{tags_to_delete}});
 879         }
 880
 881         $self->set_HEAD($self->{HEAD}) unless $self->{orig_HEAD} eq $self->{HEAD};
 882
 883         my @users_add = grep { $a = $_; not scalar grep { $a eq $_ } $self->{orig_users} } $self->{users};
 884         my @users_del = grep { $a = $_; not scalar grep { $a eq $_ } $self->{users} } $self->{orig_users};
 885         $self->perm_user_add($_, Girocco::User::resolve_uid($_)) foreach (@users_add);
 886         $self->perm_user_del($_, Girocco::User::resolve_uid($_)) foreach (@users_del);
 887
 888         $self->_update_index if $self->{email} ne $self->{orig_email};
 889         $self->{orig_email} = $self->{email};
 890         $self->_set_changed;
 891
 892         1;
 893 }
 894
 895 sub update_password {
 896         my $self = shift;
 897         my ($pwd) = @_;
 898
 899         $self->{crypt} = scrypt_sha1($pwd);
 900         $self->_group_update;
 901 }
 902
 903 # You can explicitly do this just on a ghost() repository too.
 904 sub delete {
 905         my $self = shift;
 906
 907         if (-d $self->{path}) {
 908                 system('rm', '-rf', $self->{path}) == 0
 909                         or die "rm -rf $self->{path} failed: $?";
 910         }
 911         # attempt to clean up any empty fork directories by removing them
 912         my @pelems = split('/', $self->{name});
 913         while (@pelems > 1) {
 914                 pop @pelems;
 915                 # okay to fail
 916                 rmdir join('/', $Girocco::Config::reporoot, @pelems) or last;
 917         }
 918         $self->_group_remove;
 919         $self->_update_index;
 920         $self->_set_forkchange(1);
 921
 922         1;
 923 }
 924
 925 sub _contains_files {
 926         my $dir = shift;
 927         (-d $dir) or return 0;
 928         opendir(my $dh, $dir) or die "opendir $dir failed: $!";
 929         while (my $entry = readdir($dh)) {
 930                 next if $entry eq '' || $entry eq '.' || $entry eq '..';
 931                 closedir($dh), return 1
 932                         if -f "$dir/$entry" ||
 933                         -d "$dir/$entry" && _contains_files("$dir/$entry");
 934         }
 935         closedir($dh);
 936         return 0;
 937 }
 938
 939 sub has_forks {
 940         my $self = shift;
 941
 942         return _contains_files($Girocco::Config::reporoot.'/'.$self->{name});
 943 }
 944
 945 # Returns an array of 0 or more array refs, one for each bundle:
 946 #  ->[0]: bundle creation time (seconds since epoch)
 947 #  ->[1]: bundle name (e.g. foo-xxxxxxxx.bundle)
 948 #  ->[2]: bundle size in bytes
 949 sub bundles {
 950         my $self = shift;
 951         use Time::Local;
 952
 953         return @{$self->{bundles}} if ref($self->{bundles}) eq 'ARRAY';
 954         my @blist = ();
 955         if (-d $self->{path}.'/bundles') {{
 956                 my $prefix = $self->{name};
 957                 $prefix =~ s|^.*[^/]/([^/]+)$|$1|;
 958                 opendir(my $dh, $self->{path}.'/bundles') or last;
 959                 while (my $bfile = readdir($dh)) {
 960                         next unless $bfile =~ /^\d{8}_\d{6}-[0-9a-f]{8}$/;
 961                         my $ctime = eval {timegm(
 962                                 0+substr($bfile,13,2), 0+substr($bfile,11,2), 0+substr($bfile,9,2),
 963                                 0+substr($bfile,6,2), 0+substr($bfile,4,2)-1, 0+substr($bfile,0,4)-1900)};
 964                         next unless $ctime;
 965                         open(my $bh, '<', $self->{path}.'/bundles/'.$bfile) or next;
 966                         my $f1 = <$bh>;
 967                         my $f2 = <$bh>;
 968                         $f1 = $self->{path}.'/objects/pack/'.$f1 if $f1 && $f1 !~ m|^/|;
 969                         $f2 = $self->{path}.'/objects/pack/'.$f2 if $f2 && $f2 !~ m|^/|;
 970                         close($bh);
 971                         next unless $f1 && $f2 && $f1 ne $f2;
 972                         chomp $f1;
 973                         chomp $f2;
 974                         next unless -e $f1 && -e $f2;
 975                         my $s1 = -s $f1 || 0;
 976                         my $s2 = -s $f2 || 0;
 977                         next unless $s1 || $s2;
 978                         push(@blist, [$ctime, "$prefix-".substr($bfile,16,8).".bundle", $s1+$s2]);
 979                 }
 980                 closedir($dh);
 981         }}
 982         @blist = sort({$b->[0] <=> $a->[0]} @blist);
 983         my %seen = ();
 984         my @result = ();
 985         foreach my $bndl (@blist) {
 986                 next if $seen{$bndl->[1]};
 987                 $seen{$bndl->[1]} = 1;
 988                 push(@result, $bndl);
 989         }
 990         $self->{bundles} = \@result;
 991         return @result;
 992 }
 993
 994 sub has_alternates {
 995         my $self = shift;
 996         return -s $self->{path}.'/objects/info/alternates' ? 1 : 0;
 997 }
 998
 999 sub has_bundle {
1000         my $self = shift;
1001
1002         return scalar($self->bundles);
1003 }
1004
1005 sub is_empty {
1006         # A project is considered empty if the git repository does not
1007         # have any refs.  This means packed-refs does not exist or is
1008         # empty or only has lines starting with '#' AND there are no
1009         # files in the refs subdirectory hierarchy (no matter how deep).
1010
1011         my $self = shift;
1012
1013         (-d $self->{path}) or return 0;
1014         if (-e $self->{path}.'/packed-refs') {
1015                 open(my $pr, '<', $self->{path}.'/packed-refs')
1016                         or die "open $self->{path}./packed-refs failed: $!";
1017                 my $foundref = 0;
1018                 while (my $ref = <$pr>) {
1019                         next if $ref =~ /^#/;
1020                         $foundref = 1;
1021                         last;
1022                 }
1023                 close($pr);
1024                 return 0 if $foundref;
1025         }
1026         (-d $self->{path}.'/refs') or return 1;
1027         return !_contains_files($self->{path}.'/refs');
1028 }
1029
1030 # returns array:
1031 # [0]: earliest possible scheduled next gc, undef if lastgc not set
1032 # [1]: approx. latest possible scheduled next gc, undef if lastgc not set
1033 # Both values (if not undef) are seconds since epoch
1034 # Result only considers lastgc and min_gc_interval nothing else
1035 sub next_gc {
1036         my $self = shift;
1037         my $lastgcepoch = parse_any_date($self->{lastgc});
1038         return (undef, undef) unless defined $lastgcepoch;
1039         return ($lastgcepoch + $Girocco::Config::min_gc_interval,
1040                 int($lastgcepoch + 1.25 * $Girocco::Config::min_gc_interval +
1041                                 $Girocco::Config::min_mirror_interval));
1042 }
1043
1044 # returns boolean (0 or 1)
1045 # Attempts to determine whether or not a gc (and corresponding build
1046 # of a .bitmap/.bndl file) will actually take place at the next_gc
1047 # time (as returned by next_gc).  Whether or not a .bitmap and .bndl
1048 # end up being built depends on whether or not the local object graph
1049 # is complete.  In general if has_alternates is true then a .bitmap/.bndl
1050 # is not possible because the object graph will be incomplete,
1051 # but it *is* possible that even though the repository has_alternates,
1052 # it does not actually borrow any objects so a .bitmap/.bndl will build
1053 # in spite of the presence of alternates -- but this is expected to be rare.
1054 # The result is a best guess and false return value is not an absolute
1055 # guarantee that gc will not take place at the next interval, but it probably
1056 # will not if nothing changes in the meantime.
1057 sub needs_gc {
1058         my $self = shift;
1059         my $lgc = parse_any_date($self->{lastgc});
1060         my $lrecv = parse_any_date($self->{lastreceive});
1061         my $lpgc = parse_any_date($self->{lastparentgc});
1062         return 1 unless defined($lgc) && defined($lrecv);
1063         if ($self->has_alternates) {
1064                 return 1 unless defined($lpgc);
1065                 return 1 unless $lpgc < $lgc;
1066         }
1067         return 1 unless $lrecv < $lgc;
1068         # We don't try running any "is_dirty" check, so if somehow the
1069         # repository became dirty without updating lastreceive we might
1070         # incorrectly return false instead of true.
1071         return 0;
1072 }
1073
1074 sub delete_ctag {
1075         my $self = shift;
1076         my ($ctag) = @_;
1077
1078         # sanity check, disallow filenames starting with . .. or /
1079         unlink($self->{path}.'/ctags/'.$ctag) if($ctag !~ m|^(\.\.?)/|);
1080 }
1081
1082 sub get_ctag_names {
1083         my $self = shift;
1084         my @ctags = ();
1085         opendir(my $dh, $self->{path}.'/ctags')
1086                 or return @ctags;
1087         @ctags = grep { -f "$self->{path}/ctags/$_" } readdir($dh);
1088         closedir($dh);
1089         return @ctags;
1090 }
1091
1092 sub get_heads {
1093         my $self = shift;
1094         my $fh;
1095         my $heads = get_git("--git-dir=$self->{path}", 'for-each-ref', '--format=%(objectname) %(refname)', 'refs/heads');
1096         defined($heads) or $heads = '';
1097         chomp $heads;
1098         my @res = ();
1099         foreach (split(/\n/, $heads)) {
1100                 chomp;
1101                 next if !m#^[0-9a-f]{40}\s+refs/heads/(.+)$ #x;
1102                 push @res, $1;
1103         }
1104         @res;
1105 }
1106
1107 sub get_HEAD {
1108         my $self = shift;
1109         my $HEAD = get_git("--git-dir=$self->{path}", 'symbolic-ref', 'HEAD');
1110         defined($HEAD) or $HEAD = '';
1111         chomp $HEAD;
1112         die "could not get HEAD" if ($HEAD !~ m{^refs/heads/(.+)$});
1113         return $1;
1114 }
1115
1116 sub set_HEAD {
1117         my $self = shift;
1118         my $newHEAD = shift;
1119         # Cursory checks only -- if you want to break your HEAD, be my guest
1120         if ($newHEAD =~ /^\/|['<>]|\.\.|\/$/) {
1121                 die "grossly invalid new HEAD: $newHEAD";
1122         }
1123         system($Girocco::Config::git_bin, "--git-dir=$self->{path}", 'symbolic-ref', 'HEAD', "refs/heads/$newHEAD");
1124         die "could not set HEAD" if ($? >> 8);
1125         ! -d "$self->{path}/mob" || $Girocco::Config::mob ne 'mob'
1126                 or system('cp', '-p', '-f', "$self->{path}/HEAD", "$self->{path}/mob/HEAD") == 0;
1127 }
1128
1129 sub gen_auth {
1130         my $self = shift;
1131         my ($type) = @_;
1132         $type = 'REPO' unless $type && $type =~ /^[A-Z]+$/;
1133
1134         $self->{authtype} = $type;
1135         {
1136                 no warnings;
1137                 $self->{auth} = sha1_hex(time . $$ . rand() . join(':',%$self));
1138         }
1139         my $expire = time + 24 * 3600;
1140         my $propval = "# ${type}AUTH $self->{auth} $expire";
1141         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'gitweb.repoauth', $propval);
1142         $self->{auth};
1143 }
1144
1145 sub del_auth {
1146         my $self = shift;
1147
1148         delete $self->{auth};
1149         delete $self->{authtype};
1150         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', '--unset', 'gitweb.repoauth');
1151 }
1152
1153 sub remove_user {
1154         my $self = shift;
1155         my ($username) = @_;
1156
1157         my $before_count = @{$self->{users}};
1158         $self->{users} = [grep { $_ ne $username } @{$self->{users}}];
1159         return @{$self->{users}} != $before_count;
1160 }
1161
1162 ### static methods
1163
1164 sub get_forkee_name {
1165         local $_ = $_[0];
1166         (m#^(.*)/.*?$#)[0]; #
1167 }
1168
1169 sub get_forkee_path {
1170         no warnings; # avoid silly 'unsuccessful stat on filename with \n' warning
1171         my $forkee = $Girocco::Config::reporoot.'/'.get_forkee_name($_[0]).'.git';
1172         -d $forkee ? $forkee : '';
1173 }
1174
1175 # Ultimately the full project/fork name could end up being part of a Git ref name
1176 # when a project's forks are combined into one giant repository for efficiency.
1177 # That means that the project/fork name must satisfy the Git ref name requirements:
1178 #
1179 #  1. Characters with an ASCII value less than or equal to 32 are not allowed
1180 #  2. The character with an ASCII value of 0x7F is not allowed
1181 #  3. The characters '~', '^', ':', '\', '*', '?', and '[' are not allowed
1182 #  4. The character '/' is a separator and is not allowed within a name
1183 #  5. The name may not start with '.' or end with '.'
1184 #  6. The name may not end with '.lock'
1185 #  7. The name may not contain the '..' sequence
1186 #  8. The name may not contain the '@{' sequence
1187 #  9. If multiple components are used (separated by '/'), no empty '' components
1188 #
1189 # We also prohibit a trailing '.git' on any path component and futher restrict
1190 # the allowed characters to alphanumeric and [+._-] where names must start with
1191 # an alphanumeric.
1192
1193 sub _valid_name_characters {
1194         local $_ = $_[0];
1195         (not m#^[/+._-]#)
1196                 and (not m#//#)
1197                 and (not m#\.\.#)
1198                 and (not m#/[+._-]#)
1199                 and (not m#\./#)
1200                 and (not m#\.$#)
1201                 and (not m#\.git/#i)
1202                 and (not m#\.git$#i)
1203                 and (not m#\.lock/#i)
1204                 and (not m#\.lock$#i)
1205                 and (not m#\.bundle/#i)
1206                 and (not m#\.bundle$#i)
1207                 and (not m#/$#)
1208                 and m#^[a-zA-Z0-9/+._-]+$#
1209                 and !has_reserved_suffix($_, $_[1], $_[2]);
1210 }
1211
1212 sub valid_name {
1213         no warnings; # avoid silly 'unsuccessful stat on filename with \n' warning
1214         local $_ = $_[0];
1215         _valid_name_characters($_) and not exists($reservedprojectnames{lc($_)})
1216                 and @{[m#/#g]} <= 5 # maximum fork depth is 5
1217                 and ((not m#/#) or -d get_forkee_path($_)); # will also catch ^/
1218 }
1219
1220 # It's possible that some forks have been kept but the forkee is gone.
1221 # In this case the standard valid_name check is too strict.
1222 sub does_exist {
1223         no warnings; # avoid silly 'unsuccessful stat on filename with \n' warning
1224         my ($name, $nodie) = @_;
1225         my $okay = (
1226                 _valid_name_characters($name, $Girocco::Config::reporoot, ".git")
1227                 and ((not $name =~ m#/#)
1228                         or -d get_forkee_path($name)
1229                         or -d $Girocco::Config::reporoot.'/'.get_forkee_name($name)));
1230         (!$okay && $nodie) and return undef;
1231         !$okay and die "tried to query for project with invalid name $name!";
1232         (-d $Girocco::Config::reporoot."/$name.git");
1233 }
1234
1235 sub get_full_list {
1236         open my $fd, '<', jailed_file("/etc/group") or die "getting project list failed: $!";
1237         my @projects = map {/^([^:_\s#][^:\s#]*):[^:]*:\d{5,}:/ ? $1 : ()} <$fd>;
1238         close $fd;
1239         @projects;
1240 }
1241
1242
1243 1;