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         summaryonly => ['Summaries only', 'summaryonly', 'checkbox',
  46                 'suppress patch/diff output in &#x201c;Commit notify&#x201d; email when showing new revisions'],
  47         notifytag => ['Tag notify &#x2013; mail to', 'notifytag', 'text',
  48                 'comma separated address list &#x2013; if not empty, tag '.
  49                 'notifications are sent here INSTEAD of to '.
  50                 '&#x201c;Commit notify &#x2013; mail to&#x201d; address(es)'],
  51         notifyjson => ['Commit notify &#x2013; '.
  52                 '<a title="'.html_esc('single field name is &#x201c;payload&#x201d;', 1).'" href="'.
  53                 'https://developer.github.com/v3/activity/events/types/#pushevent'.
  54                 '">POST JSON</a> at', 'notifyjson', 'text'],
  55         notifycia =>  ['Commit notify &#x2013; <a href="http://cia.vc/doc/">CIA project</a> name',
  56                 'notifycia', 'text', 'CIA is defunct &#x2013; this value is ignored'],
  57 };
  58
  59 sub _mkdir_forkees {
  60         my $self = shift;
  61         my @pelems = split('/', $self->{name});
  62         pop @pelems; # do not create dir for the project itself
  63         my $path = $self->{base_path};
  64         foreach my $pelem (@pelems) {
  65                 $path .= "/$pelem";
  66                 (-d "$path") or mkdir $path or die "mkdir $path: $!";
  67                 chmod 02775, $path; # ok if fails (dir may already exist and be owned by someone else)
  68         }
  69 }
  70
  71 # With a leading ':' get from project local config replacing ':' with 'gitweb.'
  72 # With a leading '%' get from project local config after removing '%'
  73 # Otherwise it's a project file name to be loaded
  74 # %propmapro entries are loaded but never written
  75
  76 our %propmap = (
  77         url => ':baseurl',
  78         email => ':owner',
  79         desc => 'description',
  80         README => 'README.html',
  81         hp => ':homepage',
  82         notifymail => '%hooks.mailinglist',
  83         notifytag => '%hooks.announcelist',
  84         notifyjson => '%hooks.jsonurl',
  85         notifycia => '%hooks.cianame',
  86 );
  87
  88 our %propmapro = (
  89         lastchange => ':lastchange',
  90         lastactivity => 'info/lastactivity',
  91         lastgc => ':lastgc',
  92         lastreceive => ':lastreceive',
  93         lastparentgc => ':lastparentgc',
  94         lastrefresh => ':lastrefresh',
  95         creationtime => '%girocco.creationtime',
  96         reposizek => '%girocco.reposizek',
  97         origurl => ':baseurl',
  98 );
  99
 100 # Projects with any of these names will be disallowed to avoid possible
 101 # collisions with cgi script paths or chroot paths
 102 # NOTE: names are checked after using lc on them, so all entries MUST be lowercase
 103 our %reservedprojectnames = (
 104         admin => 1,     # /admin/ links
 105         alternates => 1, # .git/objects/info/alternates
 106         b => 1,         # /b/ -> bundle.cgi
 107         blog => 1,      # /blog/ links
 108         c => 1,         # /c/ -> cgit
 109         'git-receive-pack' => 1, # smart HTTP
 110         'git-upload-archive' => 1, # smart HTTP
 111         'git-upload-pack' => 1, # smart HTTP
 112         h => 1,         # /h/ -> html.cgi
 113         head => 1,      # .git/HEAD
 114         'http-alternates' => 1, # .git/objects/info/http-alternates
 115         info => 1,      # .git/info
 116         objects => 1,   # .git/objects
 117         packs => 1,     # .git/objects/info/packs
 118         r => 1,         # /r/ -> git http
 119         refs => 1,      # .git/refs
 120         w => 1,         # /w/ -> gitweb
 121         wiki => 1,      # /wiki/ links
 122         srv => 1,       # /srv/git/ -> chroot ssh git repositories
 123 );
 124
 125 sub _update_index {
 126         my $self = shift;
 127         system("$Girocco::Config::basedir/gitweb/genindex.sh", $self->{name});
 128 }
 129
 130 sub _readlocalconfigfile {
 131         my $self = shift;
 132         my $undefonerr = shift || 0;
 133         delete $self->{configfilehash};
 134         my $configfile = get_git("--git-dir=$self->{path}",
 135                                 'config', '--list', '--local', '--null');
 136         my $result = 1;
 137         defined($configfile) || $undefonerr or $result = 0, $configfile = '';
 138         return undef unless defined($configfile);
 139         my %config = map({split(/\n/, $_=~/\n/?$_:"$_\ntrue", 2)} split(/\x00/, $configfile));
 140         $self->{configfilehash} = \%config;
 141         return $result;
 142 }
 143
 144 # @_[0]: argument to convert to boolean result (0 or 1)
 145 # @_[1]: value to use if argument is undef (default is 0)
 146 # Returns 0 or 1
 147 sub _boolval {
 148         my ($val, $def) = @_;
 149         defined($def) or $def = 0;
 150         defined($val) or $val = $def;
 151         $val =~ s/\s+//gs;
 152         $val = lc($val);
 153         return 0 if $val eq '' || $val eq 'false' || $val eq 'off' || $val eq 'no' || $val =~ /^0+$/;
 154         return 1;
 155 }
 156
 157 sub _property_path {
 158         my $self = shift;
 159         my ($name) = @_;
 160         $self->{path}.'/'.$name;
 161 }
 162
 163 sub _property_fget {
 164         my $self = shift;
 165         my ($name) = @_;
 166         my $pname = $propmap{$name};
 167         $pname = $propmapro{$name} unless $pname;
 168         $pname or die "unknown property: $name";
 169         if ($pname =~ /^([:%])(.*)$/) {
 170                 my ($where, $pname) = ($1,lc($2));
 171                 $self->_readlocalconfigfile
 172                         unless ref($self->{configfilehash}) eq 'HASH';
 173                 my $val = $where eq ':' ?
 174                         $self->{configfilehash}->{"gitweb.$pname"} :
 175                         $self->{configfilehash}->{$pname};
 176                 defined($val) or $val = '';
 177                 chomp $val;
 178                 return $val;
 179         }
 180
 181         open my $p, '<', $self->_property_path($pname) or return undef;
 182         my @value = <$p>;
 183         close $p;
 184         my $value = join('', @value); chomp $value;
 185         $value;
 186 }
 187
 188 sub _property_fput {
 189         my $self = shift;
 190         my ($name, $value) = @_;
 191         my $pname = $propmap{$name};
 192         $pname or die "unknown property: $name";
 193         $value ||= '';
 194         if ($pname =~ s/^://) {
 195                 system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', "gitweb.$pname", $value);
 196                 return;
 197         } elsif ($pname =~ s/^%//) {
 198                 system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', $pname, $value);
 199                 return;
 200         }
 201
 202         my $P = lock_file($self->_property_path($pname));
 203         chomp $value;
 204         $value ne '' and print $P "$value\n";
 205         close $P;
 206         unlock_file($self->_property_path($pname));
 207 }
 208
 209 sub _cleanup_readme {
 210         my $self = shift;
 211         defined($self->{README}) or $self->{README} = '';
 212         $self->{README} =~ s/\r\n?/\n/gs;
 213         $self->{README} =~ s/^\s+//s;
 214         $self->{README} =~ s/\s+$//s;
 215         $self->{README} eq '' or $self->{README} .= "\n";
 216 }
 217
 218 sub _lint_readme {
 219         my $self = shift;
 220         return 0 unless defined($self->{README}) && $self->{README} ne '';
 221         my $test = '<html xmlns="http://www.w3.org/1999/xhtml"><body><div>';
 222         $test .= $self->{README};
 223         $test .= '</div></body></html>';
 224         my ($code, $errors) = capture_command(2, $test, 'xmllint', '--nonet',
 225                 '--noout', '--nowarning', '-');
 226         return 0 unless $code;
 227         my $cnt = 0;
 228         my @errs = ();
 229         for my $line (split(/\n+/, $errors)) {
 230                 $line = html_esc($line);
 231                 $line =~ s/ /\&#160;/gs;
 232                 ++$cnt, $line = 'README'.$1 if $line =~ /^-(:\d+:.*)$/;
 233                 push @errs, '<tt>' . $line . '</tt>';
 234         }
 235         return ($cnt, join("<br />\n", @errs));
 236 }
 237
 238 sub _properties_load {
 239         my $self = shift;
 240         foreach my $prop (keys %propmap) {
 241                 $self->{$prop} = $self->_property_fget($prop);
 242         }
 243         foreach my $prop (keys %propmapro) {
 244                 $self->{$prop} = $self->_property_fget($prop);
 245         }
 246         $self->_readlocalconfigfile
 247                 unless ref($self->{configfilehash}) eq 'HASH';
 248         $self->{statusupdates} = _boolval($self->{configfilehash}->{'gitweb.statusupdates'}, 1);
 249         $self->{summaryonly} = _boolval($self->{configfilehash}->{'hooks.summaryonly'}, 0);
 250         delete $self->{auth};
 251         my $val = $self->{configfilehash}->{'gitweb.repoauth'};
 252         defined($val) or $val = '';
 253         chomp $val;
 254         if ($val =~ /^# ([A-Z]+)AUTH ([0-9a-f]+) (\d+)/) {
 255                 my $expire = $3;
 256                 if (time < $expire) {
 257                         $self->{authtype} = $1;
 258                         $self->{auth} = $2;
 259                 }
 260         }
 261         $self->_cleanup_readme;
 262         delete $self->{configfilehash};
 263 }
 264
 265 sub _properties_save {
 266         my $self = shift;
 267         my $fd;
 268         foreach my $prop (keys %propmap) {
 269                 $self->_property_fput($prop, $self->{$prop});
 270         }
 271         $self->{statusupdates} = 1
 272                 unless defined($self->{statusupdates}) && $self->{statusupdates} =~ /^\d+$/;
 273         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', '--bool',
 274                 "gitweb.statusupdates", $self->{statusupdates});
 275         $self->{summaryonly} = 0
 276                 unless defined($self->{summaryonly}) && $self->{summaryonly} =~ /^\d+$/;
 277         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', '--bool',
 278                 "hooks.summaryonly", $self->{summaryonly});
 279         if (defined($self->{origurl}) && defined($self->{url}) &&
 280             $self->{origurl} ne $self->{url} && -e $self->_property_path(".banged")) {
 281                 if (open($fd, '>', $self->_property_path(".bangagain"))) {
 282                         close $fd;
 283                         chmod(0664, $self->_property_path(".bangagain"));
 284                 }
 285         }
 286 }
 287
 288 sub _nofetch_path {
 289         my $self = shift;
 290         $self->_property_path('.nofetch');
 291 }
 292
 293 sub _nofetch {
 294         my $self = shift;
 295         my ($nofetch) = @_;
 296         my $nf = $self->_nofetch_path;
 297         if ($nofetch) {
 298                 open my $x, '>', $nf or die "nofetch failed: $!";
 299                 close $x;
 300         } else {
 301                 unlink $nf or die "yesfetch failed: $!";
 302         }
 303 }
 304
 305 sub _gcp_path {
 306         my $self = shift;
 307         $self->_property_path('.gc_in_progress');
 308 }
 309
 310 sub _clonelog_path {
 311         my $self = shift;
 312         $self->_property_path('.clonelog');
 313 }
 314
 315 sub _clonefail_path {
 316         my $self = shift;
 317         $self->_property_path('.clone_failed');
 318 }
 319
 320 sub _clonep_path {
 321         my $self = shift;
 322         $self->_property_path('.clone_in_progress');
 323 }
 324
 325 sub _clonep {
 326         my $self = shift;
 327         my ($nofetch) = @_;
 328         my $np = $self->_clonep_path;
 329         if ($nofetch) {
 330                 open my $x, '>', $np or die "clonep failed: $!";
 331                 close $x;
 332         } else {
 333                 unlink $np or die "clonef failed: $!";
 334         }
 335 }
 336 sub _alternates_setup {
 337         my $self = shift;
 338         return unless $self->{name} =~ m#/#;
 339         my $forkee_name = get_forkee_name($self->{name});
 340         my $forkee_path = get_forkee_path($self->{name});
 341         return unless -d $forkee_path;
 342         mkdir $self->{path}.'/refs'; chmod 02775, $self->{path}.'/refs';
 343         mkdir $self->{path}.'/objects'; chmod 02775, $self->{path}.'/objects';
 344         mkdir $self->{path}.'/objects/info'; chmod 02775, $self->{path}.'/objects/info';
 345
 346         # We set up both alternates and http_alternates since we cannot use
 347         # relative path in alternates - that doesn't work recursively.
 348
 349         my $filename = $self->{path}.'/objects/info/alternates';
 350         open my $x, '>', $filename or die "alternates failed: $!";
 351         print $x "$forkee_path/objects\n";
 352         close $x;
 353         chmod 0664, $filename or warn "cannot chmod $filename: $!";
 354
 355         if ($Girocco::Config::httppullurl) {
 356                 $filename = $self->{path}.'/objects/info/http-alternates';
 357                 open my $x, '>', $filename or die "http-alternates failed: $!";
 358                 my $upfork = $forkee_name;
 359                 do { print $x "$Girocco::Config::httppullurl/$upfork.git/objects\n"; } while ($upfork =~ s#/?.+?$## and $upfork); #
 360                 close $x;
 361                 chmod 0664, $filename or warn "cannot chmod $filename: $!";
 362         }
 363
 364         # copy lastactivity from the parent project
 365         if (open $x, '<', $forkee_path.'/info/lastactivity') {{
 366                 my $activity = <$x>;
 367                 close $x;
 368                 last unless $activity;
 369                 open $x, '>', $self->{path}.'/info/lastactivity' or last;
 370                 print $x $activity;
 371                 close $x;
 372                 chomp $activity;
 373                 $self->{'lastactivity'} = $activity;
 374         }}
 375
 376         # copy refs from parent project
 377         local *SAVEOUT;
 378         open(SAVEOUT, ">&STDOUT") || die "couldn't dup STDOUT: $!";
 379         my $result = open(STDOUT, '>', "$self->{path}/packed-refs");
 380         my $resultstr = $!;
 381         if (!$result) {
 382                 open(STDOUT, ">&SAVEOUT") || die "couldn't dup SAVEOUT to STDOUT: $!";
 383                 close(SAVEOUT) or die "couldn't close SAVEOUT: $!";
 384                 die "could not write fork's packed-refs file: $resultstr";
 385         }
 386         system($Girocco::Config::git_bin, "--git-dir=$forkee_path", 'for-each-ref', '--format=%(objectname) %(refname)');
 387         $result = close(STDOUT);
 388         $resultstr = $!;
 389         open(STDOUT, ">&SAVEOUT") || die "couldn't dup SAVEOUT to STDOUT: $!";
 390         close(SAVEOUT) or die "couldn't close SAVEOUT: $!";
 391         $result or die "could not close fork's packed-refs file: $resultstr";
 392         unlink("$self->{path}/.delaygc") if -s "$self->{path}/packed-refs";
 393
 394         # initialize HEAD
 395         my $HEAD = get_git("--git-dir=$forkee_path", 'symbolic-ref', 'HEAD');
 396         defined($HEAD) && $HEAD =~ m,^refs/heads/., or $HEAD = 'refs/heads/master';
 397         chomp $HEAD;
 398         system($Girocco::Config::git_bin, "--git-dir=$self->{path}", 'symbolic-ref', 'HEAD', $HEAD);
 399         chmod 0664, "$self->{path}/packed-refs", "$self->{path}/HEAD";
 400 }
 401
 402 sub _set_changed {
 403         my $self = shift;
 404         my $fd;
 405         open $fd, '>', "$self->{path}/htmlcache/changed" and close $fd;
 406 }
 407
 408 sub _set_forkchange {
 409         my $self = shift;
 410         my $changedtoo = shift;
 411         return unless $self->{name} =~ m#/#;
 412         my $forkee_path = get_forkee_path($self->{name});
 413         return unless -d $forkee_path;
 414         # mark forkee as changed
 415         my $fd;
 416         open $fd, '>', $forkee_path.'/htmlcache/changed' and close $fd if $changedtoo;
 417         open $fd, '>', $forkee_path.'/htmlcache/forkchange' and close $fd;
 418         return if -e $forkee_path.'/htmlcache/summary.forkchange';
 419         open $fd, '>', $forkee_path.'/htmlcache/summary.forkchange' and close $fd;
 420 }
 421
 422 sub _ctags_setup {
 423         my $self = shift;
 424         my $perms = $Girocco::Config::permission_control eq 'Hooks' ? 02777 : 02775;
 425         mkdir $self->{path}.'/ctags'; chmod $perms, $self->{path}.'/ctags';
 426 }
 427
 428 sub _group_add {
 429         my $self = shift;
 430         my ($xtra) = @_;
 431         $xtra .= join(',', @{$self->{users}});
 432         filedb_atomic_append(jailed_file('/etc/group'),
 433                 join(':', $self->{name}, $self->{crypt}, '\i', $xtra));
 434 }
 435
 436 sub _group_update {
 437         my $self = shift;
 438         my $xtra = join(',', @{$self->{users}});
 439         filedb_atomic_edit(jailed_file('/etc/group'),
 440                 sub {
 441                         $_ = $_[0];
 442                         chomp;
 443                         if ($self->{name} eq (split /:/)[0]) {
 444                                 # preserve readonly flag
 445                                 s/::([^:]*)$/:$1/ and $xtra = ":$xtra";
 446                                 return join(':', $self->{name}, $self->{crypt}, $self->{gid}, $xtra)."\n";
 447                         } else {
 448                                 return "$_\n";
 449                         }
 450                 }
 451         );
 452 }
 453
 454 sub _group_remove {
 455         my $self = shift;
 456         filedb_atomic_edit(jailed_file('/etc/group'),
 457                 sub {
 458                         $self->{name} ne (split /:/)[0] and return $_;
 459                 }
 460         );
 461 }
 462
 463 sub _hook_path {
 464         my $self = shift;
 465         my ($name) = @_;
 466         $self->{path}.'/hooks/'.$name;
 467 }
 468
 469 sub _hook_install {
 470         my $self = shift;
 471         my ($name) = @_;
 472         my $hooksdir = $self->{path}.'/hooks';
 473         my $oldmask = umask();
 474         umask($oldmask & ~0070);
 475         -d $hooksdir or mkdir $hooksdir or
 476           die "hooks directory does not exist and unable to create it for project " . $self->{name} . ": $!";
 477         umask($oldmask);
 478         open my $src, '<', "$Girocco::Config::basedir/hooks/$name" or die "cannot open hook $name: $!";
 479         open my $dst, '>', $self->_hook_path($name) or die "cannot open hook $name for writing: $!";
 480         while (<$src>) { print $dst $_; }
 481         close $dst;
 482         close $src;
 483         chmod 0775, $self->_hook_path($name) or die "cannot chmod hook $name: $!";
 484 }
 485
 486 sub _hooks_install {
 487         my $self = shift;
 488         foreach my $hook ('pre-receive', 'post-receive', 'update') {
 489                 $self->_hook_install($hook);
 490         }
 491 }
 492
 493 # private constructor, do not use
 494 sub _new {
 495         my $class = shift;
 496         my ($name, $base_path, $path) = @_;
 497         does_exist($name,1) || valid_name($name) or die "refusing to create project with invalid name ($name)!";
 498         $path ||= "$base_path/$name.git";
 499         my $proj = { name => $name, base_path => $base_path, path => $path };
 500
 501         bless $proj, $class;
 502 }
 503
 504 # public constructor #0
 505 # creates a virtual project not connected to disk image
 506 # you can conjure() it later to disk
 507 sub ghost {
 508         my $class = shift;
 509         my ($name, $mirror) = @_;
 510         my $self = $class->_new($name, $Girocco::Config::reporoot);
 511         $self->{users} = [];
 512         $self->{mirror} = $mirror;
 513         $self->{email} = $self->{orig_email} = '';
 514         $self;
 515 }
 516
 517 # public constructor #1
 518 sub load {
 519         my $class = shift;
 520         my $name = shift || '';
 521
 522         open my $fd, '<', jailed_file("/etc/group") or die "project load failed: $!";
 523         my $r = qr/^\Q$name\E:/;
 524         foreach (grep /$r/, <$fd>) {
 525                 chomp;
 526
 527                 my $self = $class->_new($name, $Girocco::Config::reporoot);
 528                 (-d $self->{path} && $self->_readlocalconfigfile(1))
 529                         or die "invalid path (".$self->{path}.") for project ".$self->{name};
 530
 531                 my $ulist;
 532                 (undef, $self->{crypt}, $self->{gid}, $ulist) = split /:/;
 533                 $ulist ||= '';
 534                 $self->{users} = [split /,/, $ulist];
 535                 $self->{HEAD} = $self->get_HEAD;
 536                 $self->{orig_HEAD} = $self->{HEAD};
 537                 $self->{orig_users} = [@{$self->{users}}];
 538                 $self->{mirror} = ! -e $self->_nofetch_path;
 539                 $self->{gc_in_progress} = -e $self->_gcp_path;
 540                 $self->{clone_in_progress} = -e $self->_clonep_path;
 541                 $self->{clone_logged} = -e $self->_clonelog_path;
 542                 $self->{clone_failed} = -e $self->_clonefail_path;
 543                 $self->{ccrypt} = $self->{crypt};
 544
 545                 $self->_properties_load;
 546                 $self->{orig_email} = $self->{email};
 547                 $self->{loaded} = 1; # indicates self was loaded from etc/group file
 548                 close $fd;
 549                 return $self;
 550         }
 551         close $fd;
 552         undef;
 553 }
 554
 555 # $proj may not be in sane state if this returns false!
 556 # fields listed in %$metadata_fields that are NOT also
 557 # in @Girocco::Config::project_fields are totally ignored!
 558 sub cgi_fill {
 559         my $self = shift;
 560         my ($gcgi) = @_;
 561         my $cgi = $gcgi->cgi;
 562         my %allowedfields = map({$_ => 1} @Girocco::Config::project_fields);
 563         my $field_enabled = sub {
 564                 !exists($metadata_fields->{$_[0]}) || exists($allowedfields{$_[0]})};
 565
 566         my $pwd = $cgi->param('pwd');
 567         my $pwd2 = $cgi->param('pwd2');
 568         # in case passwords are disabled
 569         defined($pwd) or $pwd = ''; defined($pwd2) or $pwd = '';
 570         if ($Girocco::Config::project_passwords and not $self->{crypt} and $pwd eq '' and $pwd2 eq '') {
 571                 $gcgi->err("Empty passwords are not permitted.");
 572         }
 573         if ($pwd ne '' or not $self->{crypt}) {
 574                 $self->{crypt} = scrypt_sha1($pwd);
 575         }
 576         if (($pwd ne '' || $pwd2 ne '') and $pwd ne $pwd2) {
 577                 $gcgi->err("Our high-paid security consultants have determined that the admin passwords you have entered do not match each other.");
 578         }
 579
 580         $self->{cpwd} = $cgi->param('cpwd');
 581
 582         my ($forkee,$project) = ($self->{name} =~ m#^(.*/)?([^/]+)$#);
 583         my $newtype = $forkee ? 'fork' : 'project';
 584         length($project) <= 64
 585                 or $gcgi->err("The $newtype name is longer than 64 characters. Do you really need that much?");
 586
 587         if ($Girocco::Config::project_owners eq 'email') {
 588                 $self->{email} = $gcgi->wparam('email');
 589                 valid_email($self->{email})
 590                         or $gcgi->err("Your email sure looks weird...?");
 591                 length($self->{email}) <= 96
 592                         or $gcgi->err("Your email is longer than 96 characters. Do you really need that much?");
 593         }
 594
 595         # No setting the url unless we're either new or an existing mirror!
 596         $self->{url} = $gcgi->wparam('url') unless $self->{loaded} && !$self->{mirror};
 597         # Always validate the url if we're an existing mirror
 598         if ((defined($self->{url}) && $self->{url} ne '') || ($self->{loaded} && $self->{mirror})) {{
 599                 # Always allow the url to be left unchanged without validation when editing
 600                 last if $self->{loaded} && defined($self->{origurl}) && defined($self->{url}) && $self->{origurl} eq $self->{url};
 601                 valid_repo_url($self->{url})
 602                         or $gcgi->err("Invalid URL. Note that only HTTP and Git protocols are supported. If the URL contains funny characters, contact me.");
 603                 if ($Girocco::Config::restrict_mirror_hosts) {
 604                         my $mh = extract_url_hostname($self->{url});
 605                         is_dns_hostname($mh)
 606                                 or $gcgi->err("Invalid URL. Note that only DNS names are allowed, not IP addresses.");
 607                         !is_our_hostname($mh)
 608                                 or $gcgi->err("Invalid URL. Mirrors from this host are not allowed, please create a fork instead.");
 609                 }}
 610         }
 611
 612         if ($field_enabled->('desc')) {
 613                 $self->{desc} = to_utf8($gcgi->wparam('desc'), 1);
 614                 length($self->{desc}) <= 1024
 615                         or $gcgi->err("<b>Short</b> description length &gt; 1kb!");
 616         }
 617
 618         if ($field_enabled->('README')) {
 619                 $self->{README} = to_utf8($gcgi->wparam('README'), 1);
 620                 $self->_cleanup_readme;
 621                 length($self->{README}) <= 8192
 622                         or $gcgi->err("README length &gt; 8kb!");
 623                 my ($cnt, $err) = (0);
 624                 ($cnt, $err) = $self->_lint_readme if $gcgi->ok && $Girocco::Config::xmllint_readme;
 625                 $gcgi->err($err), $gcgi->{err} += $cnt-1 if $cnt;
 626         }
 627
 628         if ($field_enabled->('hp')) {
 629                 $self->{hp} = $gcgi->wparam('hp');
 630                 if ($self->{hp}) {
 631                         valid_web_url($self->{hp})
 632                                 or $gcgi->err("Invalid homepage URL. Note that only HTTP protocol is supported. If the URL contains funny characters, contact me.");
 633                 }
 634         }
 635
 636         # No mucking about with users unless we're a push project
 637         if (($self->{loaded} && !$self->{mirror}) ||
 638             (!$self->{loaded} && (!defined($self->{url}) || $self->{url} eq ''))) {
 639                 my %users = ();
 640                 my @users = ();
 641                 foreach my $user ($cgi->multi_param('user')) {
 642                         if (!exists($users{$user})) {
 643                                 $users{$user} = 1;
 644                                 push(@users, $user) if Girocco::User::does_exist($user, 1);
 645                         }
 646                 }
 647                 $self->{users} = \@users;
 648         }
 649
 650         # HEAD can only be set with editproj, NOT regproj (regproj sets it automatically)
 651         # It may ALWAYS be set to what it was (even if there's no such refs/heads/...)
 652         my $newhead;
 653         if (defined($self->{orig_HEAD}) && $self->{orig_HEAD} ne '' &&
 654             defined($newhead = $cgi->param('HEAD')) && $newhead ne '') {
 655                 if ($newhead eq $self->{orig_HEAD} ||
 656                     get_git("--git-dir=$self->{path}", 'rev-parse', '--verify', '--quiet', 'refs/heads/'.$newhead)) {
 657                         $self->{HEAD} = $newhead;
 658                 } else {
 659                         $gcgi->err("Invalid default branch (no such ref)");
 660                 }
 661         }
 662
 663         # schedule deletion of tags (will be committed by update() after auth)
 664         $self->{tags_to_delete} = [$cgi->multi_param('tags')];
 665
 666         if ($field_enabled->('notifymail')) {
 667                 $self->{notifymail} = $gcgi->wparam('notifymail');
 668                 if ($self->{notifymail}) {
 669                         (valid_email_multi($self->{notifymail}) and length($self->{notifymail}) <= 512)
 670                                 or $gcgi->err("Invalid notify e-mail address. Use mail,mail to specify multiple addresses; total length must not exceed 512 characters, however.");
 671                 }
 672                 if ($field_enabled->('summaryonly')) {
 673                         $self->{summaryonly} = $gcgi->wparam('summaryonly') || 0;
 674                 }
 675         }
 676
 677         if ($field_enabled->('notifytag')) {
 678                 $self->{notifytag} = $gcgi->wparam('notifytag');
 679                 if ($self->{notifytag}) {
 680                         (valid_email_multi($self->{notifytag}) and length($self->{notifytag}) <= 512)
 681                                 or $gcgi->err("Invalid notify e-mail address. Use mail,mail to specify multiple addresses; total length must not exceed 512 characters, however.");
 682                 }
 683         }
 684
 685         if ($field_enabled->('notifyjson')) {
 686                 $self->{notifyjson} = $gcgi->wparam('notifyjson');
 687                 if ($self->{notifyjson}) {
 688                         valid_web_url($self->{notifyjson})
 689                                 or $gcgi->err("Invalid JSON notify URL. Note that only HTTP protocol is supported. If the URL contains funny characters, contact me.");
 690                 }
 691         }
 692
 693         if ($field_enabled->('notifycia')) {
 694                 $self->{notifycia} = $gcgi->wparam('notifycia');
 695                 if ($self->{notifycia}) {
 696                         $self->{notifycia} =~ /^[a-zA-Z0-9._-]+$/
 697                                 or $gcgi->err("Overly suspicious CIA notify project name. If it's actually valid, don't contact me, CIA is defunct.");
 698                 }
 699         }
 700
 701         if ($cgi->param('setstatusupdates')) {
 702                 my $val = $gcgi->wparam('statusupdates') || '0';
 703                 $self->{statusupdates} = $val ? 1 : 0;
 704         }
 705
 706         not $gcgi->err_check;
 707 }
 708
 709 sub form_defaults {
 710         my $self = shift;
 711         (
 712                 name => $self->{name},
 713                 email => $self->{email},
 714                 url => $self->{url},
 715                 desc => html_esc($self->{desc}),
 716                 README => html_esc($self->{README}),
 717                 hp => $self->{hp},
 718                 users => $self->{users},
 719                 notifymail => html_esc($self->{notifymail}),
 720                 summaryonly => html_esc($self->{summaryonly}),
 721                 notifytag => html_esc($self->{notifytag}),
 722                 notifyjson => html_esc($self->{notifyjson}),
 723                 notifycia => html_esc($self->{notifycia}),
 724         );
 725 }
 726
 727 # return true if $enc_passwd is a match for $plain_passwd
 728 my $_check_passwd_match = sub {
 729         my $enc_passwd = shift;
 730         my $plain_passwd = shift;
 731         defined($enc_passwd) or $enc_passwd = '';
 732         defined($plain_passwd) or $plain_passwd = '';
 733         # $enc_passwd may be crypt or crypt_sha1
 734         if ($enc_passwd =~ m(^\$sha1\$(\d+)\$([./0-9A-Za-z]{1,64})\$[./0-9A-Za-z]{28}$)) {
 735                 # It's using sha1-crypt
 736                 return $enc_passwd eq crypt_sha1($plain_passwd, $2, -(0+$1));
 737         } else {
 738                 # It's using crypt
 739                 return $enc_passwd eq crypt($plain_passwd, $enc_passwd);
 740         }
 741 };
 742
 743 sub authenticate {
 744         my $self = shift;
 745         my ($gcgi) = @_;
 746
 747         $self->{ccrypt} or die "Can't authenticate against a project with no password";
 748         defined($self->{cpwd}) or $self->{cpwd} = '';
 749         unless ($_check_passwd_match->($self->{ccrypt}, $self->{cpwd})) {
 750                 $gcgi->err("Your admin password does not match!");
 751                 return 0;
 752         }
 753         return 1;
 754 }
 755
 756 # return true if the password from the file is empty or consists of all the same
 757 # character.  However, if the project was NOT loaded from the group file
 758 # (!self->{loaded}) then the password is never locked.
 759 # This function does NOT check $Girocco::Config::project_passwords, the caller
 760 # is responsible for doing so if desired.  Same for $self->{email}.
 761 sub is_password_locked {
 762         my $self = shift;
 763
 764         $self->{loaded} or return 0;
 765         my $testcrypt = $self->{ccrypt}; # The value from the group file
 766         defined($testcrypt) or $testcrypt = '';
 767         $testcrypt ne '' or return 1; # No password at all
 768         $testcrypt =~ /^(.)\1*$/ and return 1; # Bogus crypt value
 769         return 0; # Not locked
 770 }
 771
 772 sub _setup {
 773         use POSIX qw(strftime);
 774         my $self = shift;
 775         my ($pushers) = @_;
 776         my $fd;
 777
 778         $self->_mkdir_forkees;
 779
 780         my $gid;
 781         mkdir($self->{path}) or die "mkdir $self->{path} failed: $!";
 782         if ($Girocco::Config::owning_group) {
 783                 $gid = scalar(getgrnam($Girocco::Config::owning_group));
 784                 chown(-1, $gid, $self->{path}) or die "chgrp $gid $self->{path} failed: $!";
 785                 chmod(02775, $self->{path}) or die "chmod 02775 $self->{path} failed: $!";
 786         } else {
 787                 chmod(02777, $self->{path}) or die "chmod 02777 $self->{path} failed: $!";
 788         }
 789         $ENV{'GIT_TEMPLATE_DIR'} = $Girocco::Config::chroot.'/var/empty';
 790         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'init', '--quiet', '--bare', '--shared='.$self->shared_mode()) == 0
 791                 or die "git init $self->{path} failed: $?";
 792         # we don't need these two, remove them (they will normally be created empty) if they exist
 793         rmdir $self->{path}."/branches";
 794         rmdir $self->{path}."/remotes";
 795         -d $self->{path}."/info" or mkdir $self->{path}."/info"
 796                 or die "info directory does not exist and unable to create it: $!";
 797         -d $self->{path}."/hooks" or mkdir $self->{path}."/hooks"
 798                 or die "hooks directory does not exist and unable to create it: $!";
 799         # clean out any kruft that may have come in from the initial template directory
 800         foreach my $cleandir (qw(hooks info)) {
 801                 if (opendir my $hooksdir, $self->{path}.'/'.$cleandir) {
 802                         unlink map "$self->{path}/$_", grep { $_ ne '.' && $_ ne '..' } readdir $hooksdir;
 803                         closedir $hooksdir;
 804                 }
 805         }
 806         if ($Girocco::Config::owning_group) {
 807                 chown(-1, $gid, $self->{path}."/hooks") or die "chgrp $gid $self->{path}/hooks failed: $!";
 808         }
 809         # hooks never world writable
 810         chmod 02775, $self->{path}."/hooks" or die "chmod 02775 $self->{path}/hooks failed: $!";
 811         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'core.logallrefupdates', 'false') == 0
 812                 or die "disabling core.logallrefupdates failed: $?";
 813         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'core.ignoreCase', 'false') == 0
 814                 or die "disabling core.ignoreCase failed: $?";
 815         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'transfer.fsckObjects', 'true') == 0
 816                 or die "enabling transfer.fsckObjects failed: $?";
 817         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.denyNonFastforwards', 'false') == 0
 818                 or die "disabling receive.denyNonFastforwards failed: $?";
 819         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'gc.auto', '0') == 0
 820                 or die "disabling gc.auto failed: $?";
 821         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.autogc', '0') == 0
 822                 or die "disabling receive.autogc failed: $?";
 823         my ($S,$M,$H,$d,$m,$y) = gmtime(time());
 824         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.updateserverinfo', 'true') == 0
 825                 or die "enabling receive.updateserverinfo failed: $?";
 826         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'repack.writebitmaps', 'true') == 0
 827                 or die "enabling repack.writebitmaps failed: $?";
 828         $self->{creationtime} = strftime("%Y-%m-%dT%H:%M:%SZ", $S, $M, $H, $d, $m, $y, -1, -1, -1);
 829         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'girocco.creationtime', $self->{creationtime}) == 0
 830                 or die "setting girocco.creationtime failed: $?";
 831         -d $self->{path}."/htmlcache" or mkdir $self->{path}."/htmlcache"
 832                 or die "htmlcache directory does not exist and unable to create it: $!";
 833         -d $self->{path}."/bundles" or mkdir $self->{path}."/bundles"
 834                 or die "bundles directory does not exist and unable to create it: $!";
 835         foreach my $file (qw(info/lastactivity .delaygc)) {
 836                 if (open $fd, '>', $self->{path}."/".$file) {
 837                         close $fd;
 838                         chmod 0664, $self->{path}."/".$file;
 839                 }
 840         }
 841
 842         # /info must have right permissions,
 843         # and git init didn't do it for some reason.
 844         # config must have correct permissions.
 845         # and Git 2.1.0 - 2.2.1 incorrectly add +x for some reason.
 846         # also make sure /refs, /objects and /htmlcache are correct too.
 847         my ($dmode, $dmodestr, $fmode, $fmodestr);
 848         if ($Girocco::Config::owning_group) {
 849                 ($dmode, $dmodestr) = (02775, '02775');
 850                 ($fmode, $fmodestr) = (0664,  '0664');
 851         } else {
 852                 ($dmode, $dmodestr) = (02777, '02777');
 853                 ($fmode, $fmodestr) = (0666,  '0666');
 854         }
 855         foreach my $dir (qw(info refs objects htmlcache bundles)) {
 856                 chmod($dmode, $self->{path}."/$dir") or die "chmod $dmodestr $self->{path}/$dir failed: $!";
 857         }
 858         foreach my $file (qw(config)) {
 859                 chmod($fmode, $self->{path}."/$file") or die "chmod $fmodestr $self->{path}/$file failed: $!";
 860         }
 861         # these ones are probably not strictly required but are nice to have
 862         foreach my $dir (qw(refs/heads refs/tags objects/info objects/pack)) {
 863                 -d $self->{path}."/$dir" or mkdir $self->{path}."/$dir";
 864                 chmod($dmode, $self->{path}."/$dir");
 865         }
 866
 867         $self->_properties_save;
 868         $self->_alternates_setup;
 869         $self->_ctags_setup;
 870         $self->_group_remove;
 871         $self->_group_add($pushers);
 872         $self->_hooks_install;
 873         $self->_update_index;
 874         $self->_set_changed;
 875         $self->_set_forkchange(1);
 876 }
 877
 878 sub premirror {
 879         my $self = shift;
 880
 881         $self->_setup(':');
 882         $self->_clonep(1);
 883         $self->perm_initialize;
 884 }
 885
 886 sub conjure {
 887         my $self = shift;
 888
 889         $self->_setup;
 890         $self->_nofetch(1);
 891         if ($Girocco::Config::mob && $Girocco::Config::mob eq "mob") {
 892                 system("$Girocco::Config::basedir/bin/create-personal-mob-area", $self->{name}) == 0
 893                         or die "create-personal-mob-area $self->{name} failed";
 894         }
 895         $self->perm_initialize;
 896 }
 897
 898 sub clone {
 899         my $self = shift;
 900
 901         unlink ($self->_clonefail_path()); # Ignore EEXIST error
 902         unlink ($self->_clonelog_path()); # Ignore EEXIST error
 903
 904         use IO::Socket;
 905         my $sock = IO::Socket::UNIX->new($Girocco::Config::chroot.'/etc/taskd.socket') or die "cannot connect to taskd.socket: $!";
 906         select((select($sock),$|=1)[0]);
 907         $sock->print("clone ".$self->{name}."\n");
 908         # Just ignore reply, we are going to succeed anyway and the I/O
 909         # would apparently get quite hairy.
 910         $sock->flush();
 911         sleep 2; # *cough*
 912         $sock->close();
 913 }
 914
 915 sub update {
 916         my $self = shift;
 917
 918         $self->_properties_save;
 919         $self->_group_update;
 920
 921         if (exists($self->{tags_to_delete})) {
 922                 $self->delete_ctag($_) foreach(@{$self->{tags_to_delete}});
 923         }
 924
 925         $self->set_HEAD($self->{HEAD}) unless $self->{orig_HEAD} eq $self->{HEAD};
 926
 927         my @users_add = grep { $a = $_; not scalar grep { $a eq $_ } $self->{orig_users} } $self->{users};
 928         my @users_del = grep { $a = $_; not scalar grep { $a eq $_ } $self->{users} } $self->{orig_users};
 929         $self->perm_user_add($_, Girocco::User::resolve_uid($_)) foreach (@users_add);
 930         $self->perm_user_del($_, Girocco::User::resolve_uid($_)) foreach (@users_del);
 931
 932         $self->_update_index if $self->{email} ne $self->{orig_email};
 933         $self->{orig_email} = $self->{email};
 934         $self->_set_changed;
 935
 936         1;
 937 }
 938
 939 sub update_password {
 940         my $self = shift;
 941         my ($pwd) = @_;
 942
 943         $self->{crypt} = scrypt_sha1($pwd);
 944         $self->_group_update;
 945 }
 946
 947 # You can explicitly do this just on a ghost() repository too.
 948 sub delete {
 949         my $self = shift;
 950
 951         if (-d $self->{path}) {
 952                 system('rm', '-rf', $self->{path}) == 0
 953                         or die "rm -rf $self->{path} failed: $?";
 954         }
 955         # attempt to clean up any empty fork directories by removing them
 956         my @pelems = split('/', $self->{name});
 957         while (@pelems > 1) {
 958                 pop @pelems;
 959                 # okay to fail
 960                 rmdir join('/', $Girocco::Config::reporoot, @pelems) or last;
 961         }
 962         $self->_group_remove;
 963         $self->_update_index;
 964         $self->_set_forkchange(1);
 965
 966         1;
 967 }
 968
 969 sub _contains_files {
 970         my $dir = shift;
 971         (-d $dir) or return 0;
 972         opendir(my $dh, $dir) or die "opendir $dir failed: $!";
 973         while (my $entry = readdir($dh)) {
 974                 next if $entry eq '' || $entry eq '.' || $entry eq '..';
 975                 closedir($dh), return 1
 976                         if -f "$dir/$entry" ||
 977                         -d "$dir/$entry" && _contains_files("$dir/$entry");
 978         }
 979         closedir($dh);
 980         return 0;
 981 }
 982
 983 sub has_forks {
 984         my $self = shift;
 985
 986         return _contains_files($Girocco::Config::reporoot.'/'.$self->{name});
 987 }
 988
 989 # Returns an array of 0 or more array refs, one for each bundle:
 990 #  ->[0]: bundle creation time (seconds since epoch)
 991 #  ->[1]: bundle name (e.g. foo-xxxxxxxx.bundle)
 992 #  ->[2]: bundle size in bytes
 993 sub bundles {
 994         my $self = shift;
 995         use Time::Local;
 996
 997         return @{$self->{bundles}} if ref($self->{bundles}) eq 'ARRAY';
 998         my @blist = ();
 999         if (-d $self->{path}.'/bundles') {{
1000                 my $prefix = $self->{name};
1001                 $prefix =~ s|^.*[^/]/([^/]+)$|$1|;
1002                 opendir(my $dh, $self->{path}.'/bundles') or last;
1003                 while (my $bfile = readdir($dh)) {
1004                         next unless $bfile =~ /^\d{8}_\d{6}-[0-9a-f]{8}$/;
1005                         my $ctime = eval {timegm(
1006                                 0+substr($bfile,13,2), 0+substr($bfile,11,2), 0+substr($bfile,9,2),
1007                                 0+substr($bfile,6,2), 0+substr($bfile,4,2)-1, 0+substr($bfile,0,4)-1900)};
1008                         next unless $ctime;
1009                         open(my $bh, '<', $self->{path}.'/bundles/'.$bfile) or next;
1010                         my $f1 = <$bh>;
1011                         my $f2 = <$bh>;
1012                         $f1 = $self->{path}.'/objects/pack/'.$f1 if $f1 && $f1 !~ m|^/|;
1013                         $f2 = $self->{path}.'/objects/pack/'.$f2 if $f2 && $f2 !~ m|^/|;
1014                         close($bh);
1015                         next unless $f1 && $f2 && $f1 ne $f2;
1016                         chomp $f1;
1017                         chomp $f2;
1018                         next unless -e $f1 && -e $f2;
1019                         my $s1 = -s $f1 || 0;
1020                         my $s2 = -s $f2 || 0;
1021                         next unless $s1 || $s2;
1022                         push(@blist, [$ctime, "$prefix-".substr($bfile,16,8).".bundle", $s1+$s2]);
1023                 }
1024                 closedir($dh);
1025         }}
1026         @blist = sort({$b->[0] <=> $a->[0]} @blist);
1027         my %seen = ();
1028         my @result = ();
1029         foreach my $bndl (@blist) {
1030                 next if $seen{$bndl->[1]};
1031                 $seen{$bndl->[1]} = 1;
1032                 push(@result, $bndl);
1033         }
1034         $self->{bundles} = \@result;
1035         return @result;
1036 }
1037
1038 sub has_alternates {
1039         my $self = shift;
1040         return -s $self->{path}.'/objects/info/alternates' ? 1 : 0;
1041 }
1042
1043 sub has_bundle {
1044         my $self = shift;
1045
1046         return scalar($self->bundles);
1047 }
1048
1049 # returns true if any of the notify fields are non-empty
1050 sub has_notify {
1051         my $self = shift;
1052         # We do not ckeck notifycia since it's defunct
1053         return $self->{'notifymail'} || $self->{'notifytag'} || $self->{'notifyjson'};
1054 }
1055
1056 sub is_empty {
1057         # A project is considered empty if the git repository does not
1058         # have any refs.  This means packed-refs does not exist or is
1059         # empty or only has lines starting with '#' AND there are no
1060         # files in the refs subdirectory hierarchy (no matter how deep).
1061
1062         my $self = shift;
1063
1064         (-d $self->{path}) or return 0;
1065         if (-e $self->{path}.'/packed-refs') {
1066                 open(my $pr, '<', $self->{path}.'/packed-refs')
1067                         or die "open $self->{path}./packed-refs failed: $!";
1068                 my $foundref = 0;
1069                 while (my $ref = <$pr>) {
1070                         next if $ref =~ /^#/;
1071                         $foundref = 1;
1072                         last;
1073                 }
1074                 close($pr);
1075                 return 0 if $foundref;
1076         }
1077         (-d $self->{path}.'/refs') or return 1;
1078         return !_contains_files($self->{path}.'/refs');
1079 }
1080
1081 # returns array:
1082 # [0]: earliest possible scheduled next gc, undef if lastgc not set
1083 # [1]: approx. latest possible scheduled next gc, undef if lastgc not set
1084 # Both values (if not undef) are seconds since epoch
1085 # Result only considers lastgc and min_gc_interval nothing else
1086 sub next_gc {
1087         my $self = shift;
1088         my $lastgcepoch = parse_any_date($self->{lastgc});
1089         return (undef, undef) unless defined $lastgcepoch;
1090         return ($lastgcepoch + $Girocco::Config::min_gc_interval,
1091                 int($lastgcepoch + 1.25 * $Girocco::Config::min_gc_interval +
1092                                 $Girocco::Config::min_mirror_interval));
1093 }
1094
1095 # returns boolean (0 or 1)
1096 # Attempts to determine whether or not a gc (and corresponding build
1097 # of a .bitmap/.bndl file) will actually take place at the next_gc
1098 # time (as returned by next_gc).  Whether or not a .bitmap and .bndl
1099 # end up being built depends on whether or not the local object graph
1100 # is complete.  In general if has_alternates is true then a .bitmap/.bndl
1101 # is not possible because the object graph will be incomplete,
1102 # but it *is* possible that even though the repository has_alternates,
1103 # it does not actually borrow any objects so a .bitmap/.bndl will build
1104 # in spite of the presence of alternates -- but this is expected to be rare.
1105 # The result is a best guess and false return value is not an absolute
1106 # guarantee that gc will not take place at the next interval, but it probably
1107 # will not if nothing changes in the meantime.
1108 sub needs_gc {
1109         my $self = shift;
1110         my $lgc = parse_any_date($self->{lastgc});
1111         my $lrecv = parse_any_date($self->{lastreceive});
1112         my $lpgc = parse_any_date($self->{lastparentgc});
1113         return 1 unless defined($lgc) && defined($lrecv);
1114         if ($self->has_alternates) {
1115                 return 1 unless defined($lpgc);
1116                 return 1 unless $lpgc < $lgc;
1117         }
1118         return 1 unless $lrecv < $lgc;
1119         # We don't try running any "is_dirty" check, so if somehow the
1120         # repository became dirty without updating lastreceive we might
1121         # incorrectly return false instead of true.
1122         return 0;
1123 }
1124
1125 sub delete_ctag {
1126         my $self = shift;
1127         my ($ctag) = @_;
1128
1129         # sanity check, disallow filenames starting with . .. or /
1130         unlink($self->{path}.'/ctags/'.$ctag) if($ctag !~ m|^(\.\.?)/|);
1131 }
1132
1133 sub get_ctag_names {
1134         my $self = shift;
1135         my @ctags = ();
1136         opendir(my $dh, $self->{path}.'/ctags')
1137                 or return @ctags;
1138         @ctags = grep { -f "$self->{path}/ctags/$_" } readdir($dh);
1139         closedir($dh);
1140         return sort({lc($a) cmp lc($b)} @ctags);
1141 }
1142
1143 sub get_heads {
1144         my $self = shift;
1145         my $fh;
1146         my $heads = get_git("--git-dir=$self->{path}", 'for-each-ref', '--format=%(objectname) %(refname)', 'refs/heads');
1147         defined($heads) or $heads = '';
1148         chomp $heads;
1149         my @res = ();
1150         foreach (split(/\n/, $heads)) {
1151                 chomp;
1152                 next if !m#^[0-9a-f]{40}\s+refs/heads/(.+)$ #x;
1153                 push @res, $1;
1154         }
1155         push(@res, $self->{orig_HEAD}) if !@res && defined($self->{orig_HEAD}) && $self->{orig_HEAD} ne '';
1156         @res;
1157 }
1158
1159 sub get_HEAD {
1160         my $self = shift;
1161         my $HEAD = get_git("--git-dir=$self->{path}", 'symbolic-ref', 'HEAD');
1162         defined($HEAD) or $HEAD = '';
1163         chomp $HEAD;
1164         die "could not get HEAD" if ($HEAD !~ m{^refs/heads/(.+)$});
1165         return $1;
1166 }
1167
1168 sub set_HEAD {
1169         my $self = shift;
1170         my $newHEAD = shift;
1171         # Cursory checks only -- if you want to break your HEAD, be my guest
1172         if ($newHEAD =~ /^\/|['<>]|\.\.|\/$/) {
1173                 die "grossly invalid new HEAD: $newHEAD";
1174         }
1175         system($Girocco::Config::git_bin, "--git-dir=$self->{path}", 'symbolic-ref', 'HEAD', "refs/heads/$newHEAD");
1176         die "could not set HEAD" if ($? >> 8);
1177         ! -d "$self->{path}/mob" || $Girocco::Config::mob ne 'mob'
1178                 or system('cp', '-p', '-f', "$self->{path}/HEAD", "$self->{path}/mob/HEAD") == 0;
1179 }
1180
1181 sub gen_auth {
1182         my $self = shift;
1183         my ($type) = @_;
1184         $type = 'REPO' unless $type && $type =~ /^[A-Z]+$/;
1185
1186         $self->{authtype} = $type;
1187         {
1188                 no warnings;
1189                 $self->{auth} = sha1_hex(time . $$ . rand() . join(':',%$self));
1190         }
1191         my $expire = time + 24 * 3600;
1192         my $propval = "# ${type}AUTH $self->{auth} $expire";
1193         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'gitweb.repoauth', $propval);
1194         $self->{auth};
1195 }
1196
1197 sub del_auth {
1198         my $self = shift;
1199
1200         delete $self->{auth};
1201         delete $self->{authtype};
1202         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', '--unset', 'gitweb.repoauth');
1203 }
1204
1205 sub remove_user {
1206         my $self = shift;
1207         my ($username) = @_;
1208
1209         my $before_count = @{$self->{users}};
1210         $self->{users} = [grep { $_ ne $username } @{$self->{users}}];
1211         return @{$self->{users}} != $before_count;
1212 }
1213
1214 ### static methods
1215
1216 sub get_forkee_name {
1217         local $_ = $_[0];
1218         (m#^(.*)/.*?$#)[0]; #
1219 }
1220
1221 sub get_forkee_path {
1222         no warnings; # avoid silly 'unsuccessful stat on filename with \n' warning
1223         my $forkee = $Girocco::Config::reporoot.'/'.get_forkee_name($_[0]).'.git';
1224         -d $forkee ? $forkee : '';
1225 }
1226
1227 # Ultimately the full project/fork name could end up being part of a Git ref name
1228 # when a project's forks are combined into one giant repository for efficiency.
1229 # That means that the project/fork name must satisfy the Git ref name requirements:
1230 #
1231 #  1. Characters with an ASCII value less than or equal to 32 are not allowed
1232 #  2. The character with an ASCII value of 0x7F is not allowed
1233 #  3. The characters '~', '^', ':', '\', '*', '?', and '[' are not allowed
1234 #  4. The character '/' is a separator and is not allowed within a name
1235 #  5. The name may not start with '.' or end with '.'
1236 #  6. The name may not end with '.lock'
1237 #  7. The name may not contain the '..' sequence
1238 #  8. The name may not contain the '@{' sequence
1239 #  9. If multiple components are used (separated by '/'), no empty '' components
1240 #
1241 # We also prohibit a trailing '.git' on any path component and futher restrict
1242 # the allowed characters to alphanumeric and [+._-] where names must start with
1243 # an alphanumeric.
1244
1245 sub _valid_name_characters {
1246         local $_ = $_[0];
1247         (not m#^[/+._-]#)
1248                 and (not m#//#)
1249                 and (not m#\.\.#)
1250                 and (not m#/[+._-]#)
1251                 and (not m#\./#)
1252                 and (not m#\.$#)
1253                 and (not m#\.git/#i)
1254                 and (not m#\.git$#i)
1255                 and (not m#\.idx/#i)
1256                 and (not m#\.idx$#i)
1257                 and (not m#\.lock/#i)
1258                 and (not m#\.lock$#i)
1259                 and (not m#\.pack/#i)
1260                 and (not m#\.pack$#i)
1261                 and (not m#\.bundle/#i)
1262                 and (not m#\.bundle$#i)
1263                 and (not m#/$#)
1264                 and (not m/^[a-fA-F0-9]{38}$/)
1265                 and m#^[a-zA-Z0-9/+._-]+$#
1266                 and !has_reserved_suffix($_, $_[1], $_[2]);
1267 }
1268
1269 sub valid_name {
1270         no warnings; # avoid silly 'unsuccessful stat on filename with \n' warning
1271         local $_ = $_[0];
1272         _valid_name_characters($_) and not exists($reservedprojectnames{lc($_)})
1273                 and @{[m#/#g]} <= 5 # maximum fork depth is 5
1274                 and ((not m#/#) or -d get_forkee_path($_)); # will also catch ^/
1275 }
1276
1277 # It's possible that some forks have been kept but the forkee is gone.
1278 # In this case the standard valid_name check is too strict.
1279 sub does_exist {
1280         no warnings; # avoid silly 'unsuccessful stat on filename with \n' warning
1281         my ($name, $nodie) = @_;
1282         my $okay = (
1283                 _valid_name_characters($name, $Girocco::Config::reporoot, ".git")
1284                 and ((not $name =~ m#/#)
1285                         or -d get_forkee_path($name)
1286                         or -d $Girocco::Config::reporoot.'/'.get_forkee_name($name)));
1287         (!$okay && $nodie) and return undef;
1288         !$okay and die "tried to query for project with invalid name $name!";
1289         (-d $Girocco::Config::reporoot."/$name.git");
1290 }
1291
1292 sub get_full_list {
1293         open my $fd, '<', jailed_file("/etc/group") or die "getting project list failed: $!";
1294         my @projects = map {/^([^:_\s#][^:\s#]*):[^:]*:\d{5,}:/ ? $1 : ()} <$fd>;
1295         close $fd;
1296         @projects;
1297 }
1298
1299
1300 1;