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         admin => 1,     # /admin/ links
 102         b => 1,         # /b/ -> bundle.cgi
 103         blog => 1,      # /blog/ links
 104         c => 1,         # /c/ -> cgit
 105         h => 1,         # /h/ -> html.cgi
 106         r => 1,         # /r/ -> git http
 107         w => 1,         # /w/ -> gitweb
 108         wiki => 1,      # /wiki/ links
 109         srv => 1,       # /srv/git/ -> chroot ssh git repositories
 110 );
 111
 112 sub _update_index {
 113         my $self = shift;
 114         system("$Girocco::Config::basedir/gitweb/genindex.sh", $self->{name});
 115 }
 116
 117 sub _readlocalconfigfile {
 118         my $self = shift;
 119         my $undefonerr = shift || 0;
 120         delete $self->{configfilehash};
 121         my $configfile = get_git("--git-dir=$self->{path}",
 122                                 'config', '--list', '--local', '--null');
 123         my $result = 1;
 124         defined($configfile) || $undefonerr or $result = 0, $configfile = '';
 125         return undef unless defined($configfile);
 126         my %config = map({split(/\n/, $_=~/\n/?$_:"$_\ntrue", 2)} split(/\x00/, $configfile));
 127         $self->{configfilehash} = \%config;
 128         return $result;
 129 }
 130
 131 # @_[0]: argument to convert to boolean result (0 or 1)
 132 # @_[1]: value to use if argument is undef (default is 0)
 133 # Returns 0 or 1
 134 sub _boolval {
 135         my ($val, $def) = @_;
 136         defined($def) or $def = 0;
 137         defined($val) or $val = $def;
 138         $val =~ s/\s+//gs;
 139         $val = lc($val);
 140         return 0 if $val eq '' || $val eq 'false' || $val eq 'off' || $val =~ /^0+$/;
 141         return 1;
 142 }
 143
 144 sub _property_path {
 145         my $self = shift;
 146         my ($name) = @_;
 147         $self->{path}.'/'.$name;
 148 }
 149
 150 sub _property_fget {
 151         my $self = shift;
 152         my ($name) = @_;
 153         my $pname = $propmap{$name};
 154         $pname = $propmapro{$name} unless $pname;
 155         $pname or die "unknown property: $name";
 156         if ($pname =~ /^([:%])(.*)$/) {
 157                 my ($where, $pname) = ($1,lc($2));
 158                 $self->_readlocalconfigfile
 159                         unless ref($self->{configfilehash}) eq 'HASH';
 160                 my $val = $where eq ':' ?
 161                         $self->{configfilehash}->{"gitweb.$pname"} :
 162                         $self->{configfilehash}->{$pname};
 163                 defined($val) or $val = '';
 164                 chomp $val;
 165                 return $val;
 166         }
 167
 168         open my $p, '<', $self->_property_path($pname) or return undef;
 169         my @value = <$p>;
 170         close $p;
 171         my $value = join('', @value); chomp $value;
 172         $value;
 173 }
 174
 175 sub _property_fput {
 176         my $self = shift;
 177         my ($name, $value) = @_;
 178         my $pname = $propmap{$name};
 179         $pname or die "unknown property: $name";
 180         $value ||= '';
 181         if ($pname =~ s/^://) {
 182                 system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', "gitweb.$pname", $value);
 183                 return;
 184         } elsif ($pname =~ s/^%//) {
 185                 system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', $pname, $value);
 186                 return;
 187         }
 188
 189         my $P = lock_file($self->_property_path($pname));
 190         chomp $value;
 191         $value ne '' and print $P "$value\n";
 192         close $P;
 193         unlock_file($self->_property_path($pname));
 194 }
 195
 196 sub _cleanup_readme {
 197         my $self = shift;
 198         defined($self->{README}) or $self->{README} = '';
 199         $self->{README} =~ s/\r\n?/\n/gs;
 200         $self->{README} =~ s/^\s+//s;
 201         $self->{README} =~ s/\s+$//s;
 202         $self->{README} eq '' or $self->{README} .= "\n";
 203 }
 204
 205 sub _lint_readme {
 206         my $self = shift;
 207         return 0 unless defined($self->{README}) && $self->{README} ne '';
 208         my $test = '<html xmlns="http://www.w3.org/1999/xhtml"><body><div>';
 209         $test .= $self->{README};
 210         $test .= '</div></body></html>';
 211         my ($code, $errors) = capture_command(2, $test, 'xmllint', '--nonet',
 212                 '--noout', '--nowarning', '-');
 213         return 0 unless $code;
 214         my $cnt = 0;
 215         my @errs = ();
 216         for my $line (split(/\n+/, $errors)) {
 217                 $line = html_esc($line);
 218                 $line =~ s/ /\&#160;/gs;
 219                 ++$cnt, $line = 'README'.$1 if $line =~ /^-(:\d+:.*)$/;
 220                 push @errs, '<tt>' . $line . '</tt>';
 221         }
 222         return ($cnt, join("<br />\n", @errs));
 223 }
 224
 225 sub _properties_load {
 226         my $self = shift;
 227         foreach my $prop (keys %propmap) {
 228                 $self->{$prop} = $self->_property_fget($prop);
 229         }
 230         foreach my $prop (keys %propmapro) {
 231                 $self->{$prop} = $self->_property_fget($prop);
 232         }
 233         $self->_readlocalconfigfile
 234                 unless ref($self->{configfilehash}) eq 'HASH';
 235         $self->{statusupdates} = _boolval($self->{configfilehash}->{'gitweb.statusupdates'}, 1);
 236         delete $self->{auth};
 237         my $val = $self->{configfilehash}->{'gitweb.repoauth'};
 238         defined($val) or $val = '';
 239         chomp $val;
 240         if ($val =~ /^# ([A-Z]+)AUTH ([0-9a-f]+) (\d+)/) {
 241                 my $expire = $3;
 242                 if (time < $expire) {
 243                         $self->{authtype} = $1;
 244                         $self->{auth} = $2;
 245                 }
 246         }
 247         $self->_cleanup_readme;
 248         delete $self->{configfilehash};
 249 }
 250
 251 sub _properties_save {
 252         my $self = shift;
 253         my $fd;
 254         foreach my $prop (keys %propmap) {
 255                 $self->_property_fput($prop, $self->{$prop});
 256         }
 257         $self->{statusupdates} = 1
 258                 unless defined($self->{statusupdates}) && $self->{statusupdates} =~ /^\d+$/;
 259         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', '--bool',
 260                 "gitweb.statusupdates", $self->{statusupdates});
 261         if (defined($self->{origurl}) && defined($self->{url}) &&
 262             $self->{origurl} ne $self->{url} && -e $self->_property_path(".banged")) {
 263                 if (open($fd, '>', $self->_property_path(".bangagain"))) {
 264                         close $fd;
 265                         chmod(0664, $self->_property_path(".bangagain"));
 266                 }
 267         }
 268 }
 269
 270 sub _nofetch_path {
 271         my $self = shift;
 272         $self->_property_path('.nofetch');
 273 }
 274
 275 sub _nofetch {
 276         my $self = shift;
 277         my ($nofetch) = @_;
 278         my $nf = $self->_nofetch_path;
 279         if ($nofetch) {
 280                 open my $x, '>', $nf or die "nofetch failed: $!";
 281                 close $x;
 282         } else {
 283                 unlink $nf or die "yesfetch failed: $!";
 284         }
 285 }
 286
 287 sub _gcp_path {
 288         my $self = shift;
 289         $self->_property_path('.gc_in_progress');
 290 }
 291
 292 sub _clonelog_path {
 293         my $self = shift;
 294         $self->_property_path('.clonelog');
 295 }
 296
 297 sub _clonefail_path {
 298         my $self = shift;
 299         $self->_property_path('.clone_failed');
 300 }
 301
 302 sub _clonep_path {
 303         my $self = shift;
 304         $self->_property_path('.clone_in_progress');
 305 }
 306
 307 sub _clonep {
 308         my $self = shift;
 309         my ($nofetch) = @_;
 310         my $np = $self->_clonep_path;
 311         if ($nofetch) {
 312                 open my $x, '>', $np or die "clonep failed: $!";
 313                 close $x;
 314         } else {
 315                 unlink $np or die "clonef failed: $!";
 316         }
 317 }
 318 sub _alternates_setup {
 319         my $self = shift;
 320         return unless $self->{name} =~ m#/#;
 321         my $forkee_name = get_forkee_name($self->{name});
 322         my $forkee_path = get_forkee_path($self->{name});
 323         return unless -d $forkee_path;
 324         mkdir $self->{path}.'/refs'; chmod 02775, $self->{path}.'/refs';
 325         mkdir $self->{path}.'/objects'; chmod 02775, $self->{path}.'/objects';
 326         mkdir $self->{path}.'/objects/info'; chmod 02775, $self->{path}.'/objects/info';
 327
 328         # We set up both alternates and http_alternates since we cannot use
 329         # relative path in alternates - that doesn't work recursively.
 330
 331         my $filename = $self->{path}.'/objects/info/alternates';
 332         open my $x, '>', $filename or die "alternates failed: $!";
 333         print $x "$forkee_path/objects\n";
 334         close $x;
 335         chmod 0664, $filename or warn "cannot chmod $filename: $!";
 336
 337         if ($Girocco::Config::httppullurl) {
 338                 $filename = $self->{path}.'/objects/info/http-alternates';
 339                 open my $x, '>', $filename or die "http-alternates failed: $!";
 340                 my $upfork = $forkee_name;
 341                 do { print $x "$Girocco::Config::httppullurl/$upfork.git/objects\n"; } while ($upfork =~ s#/?.+?$## and $upfork); #
 342                 close $x;
 343                 chmod 0664, $filename or warn "cannot chmod $filename: $!";
 344         }
 345
 346         # copy lastactivity from the parent project
 347         if (open $x, '<', $forkee_path.'/info/lastactivity') {{
 348                 my $activity = <$x>;
 349                 close $x;
 350                 last unless $activity;
 351                 open $x, '>', $self->{path}.'/info/lastactivity' or last;
 352                 print $x $activity;
 353                 close $x;
 354                 chomp $activity;
 355                 $self->{'lastactivity'} = $activity;
 356         }}
 357
 358         # copy refs from parent project
 359         local *SAVEOUT;
 360         open(SAVEOUT, ">&STDOUT") || die "couldn't dup STDOUT: $!";
 361         my $result = open(STDOUT, '>', "$self->{path}/packed-refs");
 362         my $resultstr = $!;
 363         if (!$result) {
 364                 open(STDOUT, ">&SAVEOUT") || die "couldn't dup SAVEOUT to STDOUT: $!";
 365                 close(SAVEOUT) or die "couldn't close SAVEOUT: $!";
 366                 die "could not write fork's packed-refs file: $resultstr";
 367         }
 368         system($Girocco::Config::git_bin, "--git-dir=$forkee_path", 'for-each-ref', '--format=%(objectname) %(refname)');
 369         $result = close(STDOUT);
 370         $resultstr = $!;
 371         open(STDOUT, ">&SAVEOUT") || die "couldn't dup SAVEOUT to STDOUT: $!";
 372         close(SAVEOUT) or die "couldn't close SAVEOUT: $!";
 373         $result or die "could not close fork's packed-refs file: $resultstr";
 374         unlink("$self->{path}/.delaygc") if -s "$self->{path}/packed-refs";
 375
 376         # initialize HEAD
 377         my $HEAD = get_git("--git-dir=$forkee_path", 'symbolic-ref', 'HEAD');
 378         defined($HEAD) && $HEAD =~ m,^refs/heads/., or $HEAD = 'refs/heads/master';
 379         chomp $HEAD;
 380         system($Girocco::Config::git_bin, "--git-dir=$self->{path}", 'symbolic-ref', 'HEAD', $HEAD);
 381         chmod 0664, "$self->{path}/packed-refs", "$self->{path}/HEAD";
 382 }
 383
 384 sub _set_changed {
 385         my $self = shift;
 386         my $fd;
 387         open $fd, '>', "$self->{path}/htmlcache/changed" and close $fd;
 388 }
 389
 390 sub _set_forkchange {
 391         my $self = shift;
 392         my $changedtoo = shift;
 393         return unless $self->{name} =~ m#/#;
 394         my $forkee_path = get_forkee_path($self->{name});
 395         return unless -d $forkee_path;
 396         # mark forkee as changed
 397         my $fd;
 398         open $fd, '>', $forkee_path.'/htmlcache/changed' and close $fd if $changedtoo;
 399         open $fd, '>', $forkee_path.'/htmlcache/forkchange' and close $fd;
 400         return if -e $forkee_path.'/htmlcache/summary.forkchange';
 401         open $fd, '>', $forkee_path.'/htmlcache/summary.forkchange' and close $fd;
 402 }
 403
 404 sub _ctags_setup {
 405         my $self = shift;
 406         my $perms = $Girocco::Config::permission_control eq 'Hooks' ? 02777 : 02775;
 407         mkdir $self->{path}.'/ctags'; chmod $perms, $self->{path}.'/ctags';
 408 }
 409
 410 sub _group_add {
 411         my $self = shift;
 412         my ($xtra) = @_;
 413         $xtra .= join(',', @{$self->{users}});
 414         filedb_atomic_append(jailed_file('/etc/group'),
 415                 join(':', $self->{name}, $self->{crypt}, '\i', $xtra));
 416 }
 417
 418 sub _group_update {
 419         my $self = shift;
 420         my $xtra = join(',', @{$self->{users}});
 421         filedb_atomic_edit(jailed_file('/etc/group'),
 422                 sub {
 423                         $_ = $_[0];
 424                         chomp;
 425                         if ($self->{name} eq (split /:/)[0]) {
 426                                 # preserve readonly flag
 427                                 s/::([^:]*)$/:$1/ and $xtra = ":$xtra";
 428                                 return join(':', $self->{name}, $self->{crypt}, $self->{gid}, $xtra)."\n";
 429                         } else {
 430                                 return "$_\n";
 431                         }
 432                 }
 433         );
 434 }
 435
 436 sub _group_remove {
 437         my $self = shift;
 438         filedb_atomic_edit(jailed_file('/etc/group'),
 439                 sub {
 440                         $self->{name} ne (split /:/)[0] and return $_;
 441                 }
 442         );
 443 }
 444
 445 sub _hook_path {
 446         my $self = shift;
 447         my ($name) = @_;
 448         $self->{path}.'/hooks/'.$name;
 449 }
 450
 451 sub _hook_install {
 452         my $self = shift;
 453         my ($name) = @_;
 454         my $hooksdir = $self->{path}.'/hooks';
 455         my $oldmask = umask();
 456         umask($oldmask & ~0070);
 457         -d $hooksdir or mkdir $hooksdir or
 458           die "hooks directory does not exist and unable to create it for project " . $self->{name} . ": $!";
 459         umask($oldmask);
 460         open my $src, '<', "$Girocco::Config::basedir/hooks/$name" or die "cannot open hook $name: $!";
 461         open my $dst, '>', $self->_hook_path($name) or die "cannot open hook $name for writing: $!";
 462         while (<$src>) { print $dst $_; }
 463         close $dst;
 464         close $src;
 465         chmod 0775, $self->_hook_path($name) or die "cannot chmod hook $name: $!";
 466 }
 467
 468 sub _hooks_install {
 469         my $self = shift;
 470         foreach my $hook ('pre-receive', 'post-receive', 'update') {
 471                 $self->_hook_install($hook);
 472         }
 473 }
 474
 475 # private constructor, do not use
 476 sub _new {
 477         my $class = shift;
 478         my ($name, $base_path, $path) = @_;
 479         does_exist($name,1) || valid_name($name) or die "refusing to create project with invalid name ($name)!";
 480         $path ||= "$base_path/$name.git";
 481         my $proj = { name => $name, base_path => $base_path, path => $path };
 482
 483         bless $proj, $class;
 484 }
 485
 486 # public constructor #0
 487 # creates a virtual project not connected to disk image
 488 # you can conjure() it later to disk
 489 sub ghost {
 490         my $class = shift;
 491         my ($name, $mirror) = @_;
 492         my $self = $class->_new($name, $Girocco::Config::reporoot);
 493         $self->{users} = [];
 494         $self->{mirror} = $mirror;
 495         $self->{email} = $self->{orig_email} = '';
 496         $self;
 497 }
 498
 499 # public constructor #1
 500 sub load {
 501         my $class = shift;
 502         my $name = shift || '';
 503
 504         open my $fd, '<', jailed_file("/etc/group") or die "project load failed: $!";
 505         my $r = qr/^\Q$name\E:/;
 506         foreach (grep /$r/, <$fd>) {
 507                 chomp;
 508
 509                 my $self = $class->_new($name, $Girocco::Config::reporoot);
 510                 (-d $self->{path} && $self->_readlocalconfigfile(1))
 511                         or die "invalid path (".$self->{path}.") for project ".$self->{name};
 512
 513                 my $ulist;
 514                 (undef, $self->{crypt}, $self->{gid}, $ulist) = split /:/;
 515                 $ulist ||= '';
 516                 $self->{users} = [split /,/, $ulist];
 517                 $self->{HEAD} = $self->get_HEAD;
 518                 $self->{orig_HEAD} = $self->{HEAD};
 519                 $self->{orig_users} = [@{$self->{users}}];
 520                 $self->{mirror} = ! -e $self->_nofetch_path;
 521                 $self->{gc_in_progress} = -e $self->_gcp_path;
 522                 $self->{clone_in_progress} = -e $self->_clonep_path;
 523                 $self->{clone_logged} = -e $self->_clonelog_path;
 524                 $self->{clone_failed} = -e $self->_clonefail_path;
 525                 $self->{ccrypt} = $self->{crypt};
 526
 527                 $self->_properties_load;
 528                 $self->{orig_email} = $self->{email};
 529                 $self->{loaded} = 1; # indicates self was loaded from etc/group file
 530                 close $fd;
 531                 return $self;
 532         }
 533         close $fd;
 534         undef;
 535 }
 536
 537 # $proj may not be in sane state if this returns false!
 538 # fields listed in %$metadata_fields that are NOT also
 539 # in @Girocco::Config::project_fields are totally ignored!
 540 sub cgi_fill {
 541         my $self = shift;
 542         my ($gcgi) = @_;
 543         my $cgi = $gcgi->cgi;
 544         my %allowedfields = map({$_ => 1} @Girocco::Config::project_fields);
 545         my $field_enabled = sub {
 546                 !exists($metadata_fields->{$_[0]}) || exists($allowedfields{$_[0]})};
 547
 548         my $pwd = $cgi->param('pwd');
 549         my $pwd2 = $cgi->param('pwd2');
 550         # in case passwords are disabled
 551         defined($pwd) or $pwd = ''; defined($pwd2) or $pwd = '';
 552         if ($Girocco::Config::project_passwords and not $self->{crypt} and $pwd eq '' and $pwd2 eq '') {
 553                 $gcgi->err("Empty passwords are not permitted.");
 554         }
 555         if ($pwd ne '' or not $self->{crypt}) {
 556                 $self->{crypt} = scrypt_sha1($pwd);
 557         }
 558         if (($pwd ne '' || $pwd2 ne '') and $pwd ne $pwd2) {
 559                 $gcgi->err("Our high-paid security consultants have determined that the admin passwords you have entered do not match each other.");
 560         }
 561
 562         $self->{cpwd} = $cgi->param('cpwd');
 563
 564         my ($forkee,$project) = ($self->{name} =~ m#^(.*/)?([^/]+)$#);
 565         my $newtype = $forkee ? 'fork' : 'project';
 566         length($project) <= 64
 567                 or $gcgi->err("The $newtype name is longer than 64 characters. Do you really need that much?");
 568
 569         if ($Girocco::Config::project_owners eq 'email') {
 570                 $self->{email} = $gcgi->wparam('email');
 571                 valid_email($self->{email})
 572                         or $gcgi->err("Your email sure looks weird...?");
 573                 length($self->{email}) <= 96
 574                         or $gcgi->err("Your email is longer than 96 characters. Do you really need that much?");
 575         }
 576
 577         # No setting the url unless we're either new or an existing mirror!
 578         $self->{url} = $gcgi->wparam('url') unless $self->{loaded} && !$self->{mirror};
 579         # Always validate the url if we're an existing mirror
 580         if ((defined($self->{url}) && $self->{url} ne '') || ($self->{loaded} && $self->{mirror})) {
 581                 valid_repo_url($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 $gcgi->err("README length &gt; 8kb!");
 603                 my ($cnt, $err) = (0);
 604                 ($cnt, $err) = $self->_lint_readme if $gcgi->ok && $Girocco::Config::xmllint_readme;
 605                 $gcgi->err($err), $gcgi->{err} += $cnt-1 if $cnt;
 606         }
 607
 608         if ($field_enabled->('hp')) {
 609                 $self->{hp} = $gcgi->wparam('hp');
 610                 if ($self->{hp}) {
 611                         valid_web_url($self->{hp})
 612                                 or $gcgi->err("Invalid homepage URL. Note that only HTTP protocol is supported. If the URL contains funny characters, contact me.");
 613                 }
 614         }
 615
 616         # No mucking about with users unless we're a push project
 617         if (($self->{loaded} && !$self->{mirror}) ||
 618             (!$self->{loaded} && (!defined($self->{url}) || $self->{url} eq ''))) {
 619                 my %users = ();
 620                 my @users = ();
 621                 foreach my $user ($cgi->multi_param('user')) {
 622                         if (!exists($users{$user})) {
 623                                 $users{$user} = 1;
 624                                 push(@users, $user) if Girocco::User::does_exist($user, 1);
 625                         }
 626                 }
 627                 $self->{users} = \@users;
 628         }
 629
 630         # HEAD can only be set with editproj, NOT regproj (regproj sets it automatically)
 631         # It may ALWAYS be set to what it was (even if there's no such refs/heads/...)
 632         my $newhead;
 633         if (defined($self->{orig_HEAD}) && $self->{orig_HEAD} ne '' &&
 634             defined($newhead = $cgi->param('HEAD')) && $newhead ne '') {
 635                 if ($newhead eq $self->{orig_HEAD} ||
 636                     get_git("--git-dir=$self->{path}", 'rev-parse', '--verify', '--quiet', 'refs/heads/'.$newhead)) {
 637                         $self->{HEAD} = $newhead;
 638                 } else {
 639                         $gcgi->err("Invalid default branch (no such ref)");
 640                 }
 641         }
 642
 643         # schedule deletion of tags (will be committed by update() after auth)
 644         $self->{tags_to_delete} = [$cgi->multi_param('tags')];
 645
 646         if ($field_enabled->('notifymail')) {
 647                 $self->{notifymail} = $gcgi->wparam('notifymail');
 648                 if ($self->{notifymail}) {
 649                         (valid_email_multi($self->{notifymail}) and length($self->{notifymail}) <= 512)
 650                                 or $gcgi->err("Invalid notify e-mail address. Use mail,mail to specify multiple addresses; total length must not exceed 512 characters, however.");
 651                 }
 652         }
 653
 654         if ($field_enabled->('notifytag')) {
 655                 $self->{notifytag} = $gcgi->wparam('notifytag');
 656                 if ($self->{notifytag}) {
 657                         (valid_email_multi($self->{notifytag}) and length($self->{notifytag}) <= 512)
 658                                 or $gcgi->err("Invalid notify e-mail address. Use mail,mail to specify multiple addresses; total length must not exceed 512 characters, however.");
 659                 }
 660         }
 661
 662         if ($field_enabled->('notifyjson')) {
 663                 $self->{notifyjson} = $gcgi->wparam('notifyjson');
 664                 if ($self->{notifyjson}) {
 665                         valid_web_url($self->{notifyjson})
 666                                 or $gcgi->err("Invalid JSON notify URL. Note that only HTTP protocol is supported. If the URL contains funny characters, contact me.");
 667                 }
 668         }
 669
 670         if ($field_enabled->('notifycia')) {
 671                 $self->{notifycia} = $gcgi->wparam('notifycia');
 672                 if ($self->{notifycia}) {
 673                         $self->{notifycia} =~ /^[a-zA-Z0-9._-]+$/
 674                                 or $gcgi->err("Overly suspicious CIA notify project name. If it's actually valid, don't contact me, CIA is defunct.");
 675                 }
 676         }
 677
 678         if ($cgi->param('setstatusupdates')) {
 679                 my $val = $gcgi->wparam('statusupdates') || '0';
 680                 $self->{statusupdates} = $val ? 1 : 0;
 681         }
 682
 683         not $gcgi->err_check;
 684 }
 685
 686 sub form_defaults {
 687         my $self = shift;
 688         (
 689                 name => $self->{name},
 690                 email => $self->{email},
 691                 url => $self->{url},
 692                 desc => html_esc($self->{desc}),
 693                 README => html_esc($self->{README}),
 694                 hp => $self->{hp},
 695                 users => $self->{users},
 696                 notifymail => html_esc($self->{notifymail}),
 697                 notifytag => html_esc($self->{notifytag}),
 698                 notifyjson => html_esc($self->{notifyjson}),
 699                 notifycia => html_esc($self->{notifycia}),
 700         );
 701 }
 702
 703 # return true if $enc_passwd is a match for $plain_passwd
 704 my $_check_passwd_match = sub {
 705         my $enc_passwd = shift;
 706         my $plain_passwd = shift;
 707         defined($enc_passwd) or $enc_passwd = '';
 708         defined($plain_passwd) or $plain_passwd = '';
 709         # $enc_passwd may be crypt or crypt_sha1
 710         if ($enc_passwd =~ m(^\$sha1\$(\d+)\$([./0-9A-Za-z]{1,64})\$[./0-9A-Za-z]{28}$)) {
 711                 # It's using sha1-crypt
 712                 return $enc_passwd eq crypt_sha1($plain_passwd, $2, -(0+$1));
 713         } else {
 714                 # It's using crypt
 715                 return $enc_passwd eq crypt($plain_passwd, $enc_passwd);
 716         }
 717 };
 718
 719 sub authenticate {
 720         my $self = shift;
 721         my ($gcgi) = @_;
 722
 723         $self->{ccrypt} or die "Can't authenticate against a project with no password";
 724         defined($self->{cpwd}) or $self->{cpwd} = '';
 725         unless ($_check_passwd_match->($self->{ccrypt}, $self->{cpwd})) {
 726                 $gcgi->err("Your admin password does not match!");
 727                 return 0;
 728         }
 729         return 1;
 730 }
 731
 732 # return true if the password from the file is empty or consists of all the same
 733 # character.  However, if the project was NOT loaded from the group file
 734 # (!self->{loaded}) then the password is never locked.
 735 # This function does NOT check $Girocco::Config::project_passwords, the caller
 736 # is responsible for doing so if desired.  Same for $self->{email}.
 737 sub is_password_locked {
 738         my $self = shift;
 739
 740         $self->{loaded} or return 0;
 741         my $testcrypt = $self->{ccrypt}; # The value from the group file
 742         defined($testcrypt) or $testcrypt = '';
 743         $testcrypt ne '' or return 1; # No password at all
 744         $testcrypt =~ /^(.)\1*$/ and return 1; # Bogus crypt value
 745         return 0; # Not locked
 746 }
 747
 748 sub _setup {
 749         use POSIX qw(strftime);
 750         my $self = shift;
 751         my ($pushers) = @_;
 752         my $fd;
 753
 754         $self->_mkdir_forkees;
 755
 756         my $gid;
 757         mkdir($self->{path}) or die "mkdir $self->{path} failed: $!";
 758         if ($Girocco::Config::owning_group) {
 759                 $gid = scalar(getgrnam($Girocco::Config::owning_group));
 760                 chown(-1, $gid, $self->{path}) or die "chgrp $gid $self->{path} failed: $!";
 761                 chmod(02775, $self->{path}) or die "chmod 02775 $self->{path} failed: $!";
 762         } else {
 763                 chmod(02777, $self->{path}) or die "chmod 02777 $self->{path} failed: $!";
 764         }
 765         $ENV{'GIT_TEMPLATE_DIR'} = $Girocco::Config::chroot.'/var/empty';
 766         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'init', '--quiet', '--bare', '--shared='.$self->shared_mode()) == 0
 767                 or die "git init $self->{path} failed: $?";
 768         # we don't need these two, remove them (they will normally be created empty) if they exist
 769         rmdir $self->{path}."/branches";
 770         rmdir $self->{path}."/remotes";
 771         -d $self->{path}."/info" or mkdir $self->{path}."/info"
 772                 or die "info directory does not exist and unable to create it: $!";
 773         -d $self->{path}."/hooks" or mkdir $self->{path}."/hooks"
 774                 or die "hooks directory does not exist and unable to create it: $!";
 775         # clean out any kruft that may have come in from the initial template directory
 776         foreach my $cleandir (qw(hooks info)) {
 777                 if (opendir my $hooksdir, $self->{path}.'/'.$cleandir) {
 778                         unlink map "$self->{path}/$_", grep { $_ ne '.' && $_ ne '..' } readdir $hooksdir;
 779                         closedir $hooksdir;
 780                 }
 781         }
 782         if ($Girocco::Config::owning_group) {
 783                 chown(-1, $gid, $self->{path}."/hooks") or die "chgrp $gid $self->{path}/hooks failed: $!";
 784         }
 785         # hooks never world writable
 786         chmod 02775, $self->{path}."/hooks" or die "chmod 02775 $self->{path}/hooks failed: $!";
 787         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'core.logallrefupdates', 'false') == 0
 788                 or die "disabling core.logallrefupdates failed: $?";
 789         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.denyNonFastforwards', 'false') == 0
 790                 or die "disabling receive.denyNonFastforwards failed: $?";
 791         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'gc.auto', '0') == 0
 792                 or die "disabling gc.auto failed: $?";
 793         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.autogc', '0') == 0
 794                 or die "disabling receive.autogc failed: $?";
 795         my ($S,$M,$H,$d,$m,$y) = gmtime(time());
 796         $self->{creationtime} = strftime("%Y-%m-%dT%H:%M:%SZ", $S, $M, $H, $d, $m, $y, -1, -1, -1);
 797         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'girocco.creationtime', $self->{creationtime}) == 0
 798                 or die "setting girocco.creationtime failed: $?";
 799         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.updateserverinfo', 'true') == 0
 800                 or die "enabling receive.updateserverinfo failed: $?";
 801         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'repack.writebitmaps', 'true') == 0
 802                 or die "enabling repack.writebitmaps failed: $?";
 803         -d $self->{path}."/htmlcache" or mkdir $self->{path}."/htmlcache"
 804                 or die "htmlcache directory does not exist and unable to create it: $!";
 805         -d $self->{path}."/bundles" or mkdir $self->{path}."/bundles"
 806                 or die "bundles directory does not exist and unable to create it: $!";
 807         foreach my $file (qw(info/lastactivity .delaygc)) {
 808                 if (open $fd, '>', $self->{path}."/".$file) {
 809                         close $fd;
 810                         chmod 0664, $self->{path}."/".$file;
 811                 }
 812         }
 813
 814         # /info must have right permissions,
 815         # and git init didn't do it for some reason.
 816         # config must have correct permissions.
 817         # and Git 2.1.0 - 2.2.1 incorrectly add +x for some reason.
 818         # also make sure /refs, /objects and /htmlcache are correct too.
 819         my ($dmode, $dmodestr, $fmode, $fmodestr);
 820         if ($Girocco::Config::owning_group) {
 821                 ($dmode, $dmodestr) = (02775, '02775');
 822                 ($fmode, $fmodestr) = (0664,  '0664');
 823         } else {
 824                 ($dmode, $dmodestr) = (02777, '02777');
 825                 ($fmode, $fmodestr) = (0666,  '0666');
 826         }
 827         foreach my $dir (qw(info refs objects htmlcache bundles)) {
 828                 chmod($dmode, $self->{path}."/$dir") or die "chmod $dmodestr $self->{path}/$dir failed: $!";
 829         }
 830         foreach my $file (qw(config)) {
 831                 chmod($fmode, $self->{path}."/$file") or die "chmod $fmodestr $self->{path}/$file failed: $!";
 832         }
 833         # these ones are probably not strictly required but are nice to have
 834         foreach my $dir (qw(refs/heads refs/tags objects/info objects/pack)) {
 835                 -d $self->{path}."/$dir" or mkdir $self->{path}."/$dir";
 836                 chmod($dmode, $self->{path}."/$dir");
 837         }
 838
 839         $self->_properties_save;
 840         $self->_alternates_setup;
 841         $self->_ctags_setup;
 842         $self->_group_remove;
 843         $self->_group_add($pushers);
 844         $self->_hooks_install;
 845         $self->_update_index;
 846         $self->_set_changed;
 847         $self->_set_forkchange(1);
 848 }
 849
 850 sub premirror {
 851         my $self = shift;
 852
 853         $self->_setup(':');
 854         $self->_clonep(1);
 855         $self->perm_initialize;
 856 }
 857
 858 sub conjure {
 859         my $self = shift;
 860
 861         $self->_setup;
 862         $self->_nofetch(1);
 863         if ($Girocco::Config::mob && $Girocco::Config::mob eq "mob") {
 864                 system("$Girocco::Config::basedir/bin/create-personal-mob-area", $self->{name}) == 0
 865                         or die "create-personal-mob-area $self->{name} failed";
 866         }
 867         $self->perm_initialize;
 868 }
 869
 870 sub clone {
 871         my $self = shift;
 872
 873         unlink ($self->_clonefail_path()); # Ignore EEXIST error
 874         unlink ($self->_clonelog_path()); # Ignore EEXIST error
 875
 876         use IO::Socket;
 877         my $sock = IO::Socket::UNIX->new($Girocco::Config::chroot.'/etc/taskd.socket') or die "cannot connect to taskd.socket: $!";
 878         select((select($sock),$|=1)[0]);
 879         $sock->print("clone ".$self->{name}."\n");
 880         # Just ignore reply, we are going to succeed anyway and the I/O
 881         # would apparently get quite hairy.
 882         $sock->flush();
 883         sleep 2; # *cough*
 884         $sock->close();
 885 }
 886
 887 sub update {
 888         my $self = shift;
 889
 890         $self->_properties_save;
 891         $self->_group_update;
 892
 893         if (exists($self->{tags_to_delete})) {
 894                 $self->delete_ctag($_) foreach(@{$self->{tags_to_delete}});
 895         }
 896
 897         $self->set_HEAD($self->{HEAD}) unless $self->{orig_HEAD} eq $self->{HEAD};
 898
 899         my @users_add = grep { $a = $_; not scalar grep { $a eq $_ } $self->{orig_users} } $self->{users};
 900         my @users_del = grep { $a = $_; not scalar grep { $a eq $_ } $self->{users} } $self->{orig_users};
 901         $self->perm_user_add($_, Girocco::User::resolve_uid($_)) foreach (@users_add);
 902         $self->perm_user_del($_, Girocco::User::resolve_uid($_)) foreach (@users_del);
 903
 904         $self->_update_index if $self->{email} ne $self->{orig_email};
 905         $self->{orig_email} = $self->{email};
 906         $self->_set_changed;
 907
 908         1;
 909 }
 910
 911 sub update_password {
 912         my $self = shift;
 913         my ($pwd) = @_;
 914
 915         $self->{crypt} = scrypt_sha1($pwd);
 916         $self->_group_update;
 917 }
 918
 919 # You can explicitly do this just on a ghost() repository too.
 920 sub delete {
 921         my $self = shift;
 922
 923         if (-d $self->{path}) {
 924                 system('rm', '-rf', $self->{path}) == 0
 925                         or die "rm -rf $self->{path} failed: $?";
 926         }
 927         # attempt to clean up any empty fork directories by removing them
 928         my @pelems = split('/', $self->{name});
 929         while (@pelems > 1) {
 930                 pop @pelems;
 931                 # okay to fail
 932                 rmdir join('/', $Girocco::Config::reporoot, @pelems) or last;
 933         }
 934         $self->_group_remove;
 935         $self->_update_index;
 936         $self->_set_forkchange(1);
 937
 938         1;
 939 }
 940
 941 sub _contains_files {
 942         my $dir = shift;
 943         (-d $dir) or return 0;
 944         opendir(my $dh, $dir) or die "opendir $dir failed: $!";
 945         while (my $entry = readdir($dh)) {
 946                 next if $entry eq '' || $entry eq '.' || $entry eq '..';
 947                 closedir($dh), return 1
 948                         if -f "$dir/$entry" ||
 949                         -d "$dir/$entry" && _contains_files("$dir/$entry");
 950         }
 951         closedir($dh);
 952         return 0;
 953 }
 954
 955 sub has_forks {
 956         my $self = shift;
 957
 958         return _contains_files($Girocco::Config::reporoot.'/'.$self->{name});
 959 }
 960
 961 # Returns an array of 0 or more array refs, one for each bundle:
 962 #  ->[0]: bundle creation time (seconds since epoch)
 963 #  ->[1]: bundle name (e.g. foo-xxxxxxxx.bundle)
 964 #  ->[2]: bundle size in bytes
 965 sub bundles {
 966         my $self = shift;
 967         use Time::Local;
 968
 969         return @{$self->{bundles}} if ref($self->{bundles}) eq 'ARRAY';
 970         my @blist = ();
 971         if (-d $self->{path}.'/bundles') {{
 972                 my $prefix = $self->{name};
 973                 $prefix =~ s|^.*[^/]/([^/]+)$|$1|;
 974                 opendir(my $dh, $self->{path}.'/bundles') or last;
 975                 while (my $bfile = readdir($dh)) {
 976                         next unless $bfile =~ /^\d{8}_\d{6}-[0-9a-f]{8}$/;
 977                         my $ctime = eval {timegm(
 978                                 0+substr($bfile,13,2), 0+substr($bfile,11,2), 0+substr($bfile,9,2),
 979                                 0+substr($bfile,6,2), 0+substr($bfile,4,2)-1, 0+substr($bfile,0,4)-1900)};
 980                         next unless $ctime;
 981                         open(my $bh, '<', $self->{path}.'/bundles/'.$bfile) or next;
 982                         my $f1 = <$bh>;
 983                         my $f2 = <$bh>;
 984                         $f1 = $self->{path}.'/objects/pack/'.$f1 if $f1 && $f1 !~ m|^/|;
 985                         $f2 = $self->{path}.'/objects/pack/'.$f2 if $f2 && $f2 !~ m|^/|;
 986                         close($bh);
 987                         next unless $f1 && $f2 && $f1 ne $f2;
 988                         chomp $f1;
 989                         chomp $f2;
 990                         next unless -e $f1 && -e $f2;
 991                         my $s1 = -s $f1 || 0;
 992                         my $s2 = -s $f2 || 0;
 993                         next unless $s1 || $s2;
 994                         push(@blist, [$ctime, "$prefix-".substr($bfile,16,8).".bundle", $s1+$s2]);
 995                 }
 996                 closedir($dh);
 997         }}
 998         @blist = sort({$b->[0] <=> $a->[0]} @blist);
 999         my %seen = ();
1000         my @result = ();
1001         foreach my $bndl (@blist) {
1002                 next if $seen{$bndl->[1]};
1003                 $seen{$bndl->[1]} = 1;
1004                 push(@result, $bndl);
1005         }
1006         $self->{bundles} = \@result;
1007         return @result;
1008 }
1009
1010 sub has_alternates {
1011         my $self = shift;
1012         return -s $self->{path}.'/objects/info/alternates' ? 1 : 0;
1013 }
1014
1015 sub has_bundle {
1016         my $self = shift;
1017
1018         return scalar($self->bundles);
1019 }
1020
1021 # returns true if any of the notify fields are non-empty
1022 sub has_notify {
1023         my $self = shift;
1024         # We do not ckeck notifycia since it's defunct
1025         return $self->{'notifymail'} || $self->{'notifytag'} || $self->{'notifyjson'};
1026 }
1027
1028 sub is_empty {
1029         # A project is considered empty if the git repository does not
1030         # have any refs.  This means packed-refs does not exist or is
1031         # empty or only has lines starting with '#' AND there are no
1032         # files in the refs subdirectory hierarchy (no matter how deep).
1033
1034         my $self = shift;
1035
1036         (-d $self->{path}) or return 0;
1037         if (-e $self->{path}.'/packed-refs') {
1038                 open(my $pr, '<', $self->{path}.'/packed-refs')
1039                         or die "open $self->{path}./packed-refs failed: $!";
1040                 my $foundref = 0;
1041                 while (my $ref = <$pr>) {
1042                         next if $ref =~ /^#/;
1043                         $foundref = 1;
1044                         last;
1045                 }
1046                 close($pr);
1047                 return 0 if $foundref;
1048         }
1049         (-d $self->{path}.'/refs') or return 1;
1050         return !_contains_files($self->{path}.'/refs');
1051 }
1052
1053 # returns array:
1054 # [0]: earliest possible scheduled next gc, undef if lastgc not set
1055 # [1]: approx. latest possible scheduled next gc, undef if lastgc not set
1056 # Both values (if not undef) are seconds since epoch
1057 # Result only considers lastgc and min_gc_interval nothing else
1058 sub next_gc {
1059         my $self = shift;
1060         my $lastgcepoch = parse_any_date($self->{lastgc});
1061         return (undef, undef) unless defined $lastgcepoch;
1062         return ($lastgcepoch + $Girocco::Config::min_gc_interval,
1063                 int($lastgcepoch + 1.25 * $Girocco::Config::min_gc_interval +
1064                                 $Girocco::Config::min_mirror_interval));
1065 }
1066
1067 # returns boolean (0 or 1)
1068 # Attempts to determine whether or not a gc (and corresponding build
1069 # of a .bitmap/.bndl file) will actually take place at the next_gc
1070 # time (as returned by next_gc).  Whether or not a .bitmap and .bndl
1071 # end up being built depends on whether or not the local object graph
1072 # is complete.  In general if has_alternates is true then a .bitmap/.bndl
1073 # is not possible because the object graph will be incomplete,
1074 # but it *is* possible that even though the repository has_alternates,
1075 # it does not actually borrow any objects so a .bitmap/.bndl will build
1076 # in spite of the presence of alternates -- but this is expected to be rare.
1077 # The result is a best guess and false return value is not an absolute
1078 # guarantee that gc will not take place at the next interval, but it probably
1079 # will not if nothing changes in the meantime.
1080 sub needs_gc {
1081         my $self = shift;
1082         my $lgc = parse_any_date($self->{lastgc});
1083         my $lrecv = parse_any_date($self->{lastreceive});
1084         my $lpgc = parse_any_date($self->{lastparentgc});
1085         return 1 unless defined($lgc) && defined($lrecv);
1086         if ($self->has_alternates) {
1087                 return 1 unless defined($lpgc);
1088                 return 1 unless $lpgc < $lgc;
1089         }
1090         return 1 unless $lrecv < $lgc;
1091         # We don't try running any "is_dirty" check, so if somehow the
1092         # repository became dirty without updating lastreceive we might
1093         # incorrectly return false instead of true.
1094         return 0;
1095 }
1096
1097 sub delete_ctag {
1098         my $self = shift;
1099         my ($ctag) = @_;
1100
1101         # sanity check, disallow filenames starting with . .. or /
1102         unlink($self->{path}.'/ctags/'.$ctag) if($ctag !~ m|^(\.\.?)/|);
1103 }
1104
1105 sub get_ctag_names {
1106         my $self = shift;
1107         my @ctags = ();
1108         opendir(my $dh, $self->{path}.'/ctags')
1109                 or return @ctags;
1110         @ctags = grep { -f "$self->{path}/ctags/$_" } readdir($dh);
1111         closedir($dh);
1112         return sort({lc($a) cmp lc($b)} @ctags);
1113 }
1114
1115 sub get_heads {
1116         my $self = shift;
1117         my $fh;
1118         my $heads = get_git("--git-dir=$self->{path}", 'for-each-ref', '--format=%(objectname) %(refname)', 'refs/heads');
1119         defined($heads) or $heads = '';
1120         chomp $heads;
1121         my @res = ();
1122         foreach (split(/\n/, $heads)) {
1123                 chomp;
1124                 next if !m#^[0-9a-f]{40}\s+refs/heads/(.+)$ #x;
1125                 push @res, $1;
1126         }
1127         push(@res, $self->{orig_HEAD}) if !@res && defined($self->{orig_HEAD}) && $self->{orig_HEAD} ne '';
1128         @res;
1129 }
1130
1131 sub get_HEAD {
1132         my $self = shift;
1133         my $HEAD = get_git("--git-dir=$self->{path}", 'symbolic-ref', 'HEAD');
1134         defined($HEAD) or $HEAD = '';
1135         chomp $HEAD;
1136         die "could not get HEAD" if ($HEAD !~ m{^refs/heads/(.+)$});
1137         return $1;
1138 }
1139
1140 sub set_HEAD {
1141         my $self = shift;
1142         my $newHEAD = shift;
1143         # Cursory checks only -- if you want to break your HEAD, be my guest
1144         if ($newHEAD =~ /^\/|['<>]|\.\.|\/$/) {
1145                 die "grossly invalid new HEAD: $newHEAD";
1146         }
1147         system($Girocco::Config::git_bin, "--git-dir=$self->{path}", 'symbolic-ref', 'HEAD', "refs/heads/$newHEAD");
1148         die "could not set HEAD" if ($? >> 8);
1149         ! -d "$self->{path}/mob" || $Girocco::Config::mob ne 'mob'
1150                 or system('cp', '-p', '-f', "$self->{path}/HEAD", "$self->{path}/mob/HEAD") == 0;
1151 }
1152
1153 sub gen_auth {
1154         my $self = shift;
1155         my ($type) = @_;
1156         $type = 'REPO' unless $type && $type =~ /^[A-Z]+$/;
1157
1158         $self->{authtype} = $type;
1159         {
1160                 no warnings;
1161                 $self->{auth} = sha1_hex(time . $$ . rand() . join(':',%$self));
1162         }
1163         my $expire = time + 24 * 3600;
1164         my $propval = "# ${type}AUTH $self->{auth} $expire";
1165         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'gitweb.repoauth', $propval);
1166         $self->{auth};
1167 }
1168
1169 sub del_auth {
1170         my $self = shift;
1171
1172         delete $self->{auth};
1173         delete $self->{authtype};
1174         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', '--unset', 'gitweb.repoauth');
1175 }
1176
1177 sub remove_user {
1178         my $self = shift;
1179         my ($username) = @_;
1180
1181         my $before_count = @{$self->{users}};
1182         $self->{users} = [grep { $_ ne $username } @{$self->{users}}];
1183         return @{$self->{users}} != $before_count;
1184 }
1185
1186 ### static methods
1187
1188 sub get_forkee_name {
1189         local $_ = $_[0];
1190         (m#^(.*)/.*?$#)[0]; #
1191 }
1192
1193 sub get_forkee_path {
1194         no warnings; # avoid silly 'unsuccessful stat on filename with \n' warning
1195         my $forkee = $Girocco::Config::reporoot.'/'.get_forkee_name($_[0]).'.git';
1196         -d $forkee ? $forkee : '';
1197 }
1198
1199 # Ultimately the full project/fork name could end up being part of a Git ref name
1200 # when a project's forks are combined into one giant repository for efficiency.
1201 # That means that the project/fork name must satisfy the Git ref name requirements:
1202 #
1203 #  1. Characters with an ASCII value less than or equal to 32 are not allowed
1204 #  2. The character with an ASCII value of 0x7F is not allowed
1205 #  3. The characters '~', '^', ':', '\', '*', '?', and '[' are not allowed
1206 #  4. The character '/' is a separator and is not allowed within a name
1207 #  5. The name may not start with '.' or end with '.'
1208 #  6. The name may not end with '.lock'
1209 #  7. The name may not contain the '..' sequence
1210 #  8. The name may not contain the '@{' sequence
1211 #  9. If multiple components are used (separated by '/'), no empty '' components
1212 #
1213 # We also prohibit a trailing '.git' on any path component and futher restrict
1214 # the allowed characters to alphanumeric and [+._-] where names must start with
1215 # an alphanumeric.
1216
1217 sub _valid_name_characters {
1218         local $_ = $_[0];
1219         (not m#^[/+._-]#)
1220                 and (not m#//#)
1221                 and (not m#\.\.#)
1222                 and (not m#/[+._-]#)
1223                 and (not m#\./#)
1224                 and (not m#\.$#)
1225                 and (not m#\.git/#i)
1226                 and (not m#\.git$#i)
1227                 and (not m#\.lock/#i)
1228                 and (not m#\.lock$#i)
1229                 and (not m#\.bundle/#i)
1230                 and (not m#\.bundle$#i)
1231                 and (not m#/$#)
1232                 and m#^[a-zA-Z0-9/+._-]+$#
1233                 and !has_reserved_suffix($_, $_[1], $_[2]);
1234 }
1235
1236 sub valid_name {
1237         no warnings; # avoid silly 'unsuccessful stat on filename with \n' warning
1238         local $_ = $_[0];
1239         _valid_name_characters($_) and not exists($reservedprojectnames{lc($_)})
1240                 and @{[m#/#g]} <= 5 # maximum fork depth is 5
1241                 and ((not m#/#) or -d get_forkee_path($_)); # will also catch ^/
1242 }
1243
1244 # It's possible that some forks have been kept but the forkee is gone.
1245 # In this case the standard valid_name check is too strict.
1246 sub does_exist {
1247         no warnings; # avoid silly 'unsuccessful stat on filename with \n' warning
1248         my ($name, $nodie) = @_;
1249         my $okay = (
1250                 _valid_name_characters($name, $Girocco::Config::reporoot, ".git")
1251                 and ((not $name =~ m#/#)
1252                         or -d get_forkee_path($name)
1253                         or -d $Girocco::Config::reporoot.'/'.get_forkee_name($name)));
1254         (!$okay && $nodie) and return undef;
1255         !$okay and die "tried to query for project with invalid name $name!";
1256         (-d $Girocco::Config::reporoot."/$name.git");
1257 }
1258
1259 sub get_full_list {
1260         open my $fd, '<', jailed_file("/etc/group") or die "getting project list failed: $!";
1261         my @projects = map {/^([^:_\s#][^:\s#]*):[^:]*:\d{5,}:/ ? $1 : ()} <$fd>;
1262         close $fd;
1263         @projects;
1264 }
1265
1266
1267 1;