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::ProjPerm;
  11         use Girocco::Config;
  12         use base ('Girocco::ProjPerm::'.$Girocco::Config::permission_control); # mwahaha
  13 }
  14
  15 BEGIN {
  16         eval {
  17                 require Digest::SHA;
  18                 Digest::SHA->import(
  19                         qw(sha1_hex)
  20         );1} ||
  21         eval {
  22                 require Digest::SHA1;
  23                 Digest::SHA1->import(
  24                         qw(sha1_hex)
  25         );1} ||
  26         eval {
  27                 require Digest::SHA::PurePerl;
  28                 Digest::SHA::PurePerl->import(
  29                         qw(sha1_hex)
  30         );1} ||
  31         die "One of Digest::SHA or Digest::SHA1 or Digest::SHA::PurePerl "
  32         . "must be available\n";
  33 }
  34
  35 our $metadata_fields = {
  36         homepage => ['Homepage URL', 'hp', 'text'],
  37         shortdesc => ['Short description', 'desc', 'text'],
  38         README => ['README (HTML, lt 8kb)', 'README', 'textarea'],
  39         notifymail => ['Commit notify - mail to', 'notifymail', 'text'],
  40         notifyjson => ['Commit notify - <a href="http://help.github.com/post-receive-hooks/">POST JSON</a> at', 'notifyjson', 'text'],
  41         notifycia =>  ['Commit notify - <a href="http://cia.vc/doc/">CIA project</a> name', 'notifycia', 'text'],
  42 };
  43
  44 sub _mkdir_forkees {
  45         my $self = shift;
  46         my @pelems = split('/', $self->{name});
  47         pop @pelems; # do not create dir for the project itself
  48         my $path = $self->{base_path};
  49         foreach my $pelem (@pelems) {
  50                 $path .= "/$pelem";
  51                 (-d "$path") or mkdir $path or die "mkdir $path: $!";
  52                 chmod 02775, $path; # ok if fails (dir may already exist and be owned by someone else)
  53         }
  54 }
  55
  56 our %propmap = (
  57         url => ':baseurl',
  58         email => ':owner',
  59         desc => 'description',
  60         README => 'README.html',
  61         hp => ':homepage',
  62         notifymail => '%hooks.mailinglist',
  63         notifyjson => '%hooks.jsonurl',
  64         notifycia => '%hooks.cianame',
  65 );
  66
  67 sub _update_index {
  68         system($Girocco::Config::basedir . '/gitweb/genindex.sh');
  69 }
  70
  71 sub _property_path {
  72         my $self = shift;
  73         my ($name) = @_;
  74         $self->{path}.'/'.$name;
  75 }
  76
  77 sub _property_fget {
  78         my $self = shift;
  79         my ($name) = @_;
  80         my $pname = $propmap{$name};
  81         $pname or die "unknown property: $name";
  82         if ($pname =~ s/^://) {
  83                 my $val = `git --git-dir="$self->{path}" config "gitweb.$pname"`;
  84                 chomp $val;
  85                 return $val;
  86         } elsif ($pname =~ s/^%//) {
  87                 my $val = `git --git-dir="$self->{path}" config "$pname"`;
  88                 chomp $val;
  89                 return $val;
  90         }
  91
  92         open P, $self->_property_path($pname) or return undef;
  93         my @value = <P>;
  94         close P;
  95         my $value = join('', @value); chomp $value;
  96         $value;
  97 }
  98
  99 sub _property_fput {
 100         my $self = shift;
 101         my ($name, $value) = @_;
 102         my $pname = $propmap{$name};
 103         $pname or die "unknown property: $name";
 104         $value ||= '';
 105         if ($pname =~ s/^://) {
 106                 system('git', '--git-dir='.$self->{path}, 'config', "gitweb.$pname", $value);
 107                 return;
 108         } elsif ($pname =~ s/^%//) {
 109                 system('git', '--git-dir='.$self->{path}, 'config', $pname, $value);
 110                 return;
 111         }
 112
 113         my $P = lock_file($self->_property_path($pname));
 114         $value ne '' and print $P "$value\n";
 115         close $P;
 116         unlock_file($self->_property_path($pname));
 117 }
 118
 119 sub _properties_load {
 120         my $self = shift;
 121         foreach my $prop (keys %propmap) {
 122                 $self->{$prop} = $self->_property_fget($prop);
 123         }
 124         my $val = `git --git-dir="$self->{path}" config --bool "gitweb.statusupdates" 2>/dev/null`;
 125         chomp $val;
 126         $val = ($val eq 'false') ? 0 : 1;
 127         $self->{statusupdates} = $val;
 128         delete $self->{auth};
 129         $val = `git --git-dir="$self->{path}" config "gitweb.delauth"`;
 130         chomp $val;
 131         if ($val =~ /^# DELAUTH ([0-9a-f]+) (\d+)/) {
 132                 my $expire = $2;
 133                 $self->{auth} = $1 unless (time >= $expire);
 134         }
 135 }
 136
 137 sub _properties_save {
 138         my $self = shift;
 139         foreach my $prop (keys %propmap) {
 140                 $self->_property_fput($prop, $self->{$prop});
 141         }
 142         $self->{statusupdates} = 1
 143                 unless defined($self->{statusupdates}) && $self->{statusupdates} =~ /^\d+$/;
 144         system('git', '--git-dir='.$self->{path}, 'config', '--bool',
 145                 "gitweb.statusupdates", $self->{statusupdates});
 146 }
 147
 148 sub _nofetch_path {
 149         my $self = shift;
 150         $self->_property_path('.nofetch');
 151 }
 152
 153 sub _nofetch {
 154         my $self = shift;
 155         my ($nofetch) = @_;
 156         my $np = $self->_nofetch_path;
 157         if ($nofetch) {
 158                 open X, '>'.$np or die "nofetch failed: $!";
 159                 close X;
 160         } else {
 161                 unlink $np or die "yesfetch failed: $!";
 162         }
 163 }
 164
 165 sub _clonelog_path {
 166         my $self = shift;
 167         $self->_property_path('.clonelog');
 168 }
 169
 170 sub _clonefail_path {
 171         my $self = shift;
 172         $self->_property_path('.clone_failed');
 173 }
 174
 175 sub _clonep_path {
 176         my $self = shift;
 177         $self->_property_path('.clone_in_progress');
 178 }
 179
 180 sub _clonep {
 181         my $self = shift;
 182         my ($nofetch) = @_;
 183         my $np = $self->_clonep_path;
 184         if ($nofetch) {
 185                 open X, '>'.$np or die "clonep failed: $!";
 186                 close X;
 187         } else {
 188                 unlink $np or die "clonef failed: $!";
 189         }
 190 }
 191 sub _alternates_setup {
 192         my $self = shift;
 193         return unless $self->{name} =~ m#/#;
 194         my $forkee_name = get_forkee_name($self->{name});
 195         my $forkee_path = get_forkee_path($self->{name});
 196         return unless -d $forkee_path;
 197         mkdir $self->{path}.'/refs'; chmod 02775, $self->{path}.'/refs';
 198         mkdir $self->{path}.'/objects'; chmod 02775, $self->{path}.'/objects';
 199         mkdir $self->{path}.'/objects/info'; chmod 02775, $self->{path}.'/objects/info';
 200
 201         # We set up both alternates and http_alternates since we cannot use
 202         # relative path in alternates - that doesn't work recursively.
 203
 204         my $filename = $self->{path}.'/objects/info/alternates';
 205         open X, '>'.$filename or die "alternates failed: $!";
 206         print X "$forkee_path/objects\n";
 207         close X;
 208         chmod 0664, $filename or warn "cannot chmod $filename: $!";
 209
 210         if ($Girocco::Config::httppullurl) {
 211                 $filename = $self->{path}.'/objects/info/http-alternates';
 212                 open X, '>'.$filename or die "http-alternates failed: $!";
 213                 my $upfork = $forkee_name;
 214                 do { print X "$Girocco::Config::httppullurl/$upfork.git/objects\n"; } while ($upfork =~ s#/?.+?$## and $upfork); #
 215                 close X;
 216                 chmod 0664, $filename or warn "cannot chmod $filename: $!";
 217         }
 218
 219         # The symlink is problematic since git remote prune will traverse it.
 220         #symlink "$forkee_path/refs", $self->{path}.'/refs/forkee';
 221
 222         # copy refs from parent project
 223         # ownership information is changed by a root cronjob
 224         system("cp -pR $forkee_path/refs $self->{path}/");
 225         # initialize HEAD, hacky version
 226         system("cp $forkee_path/HEAD $self->{path}/HEAD");
 227 }
 228
 229 sub _ctags_setup {
 230         my $self = shift;
 231         mkdir $self->{path}.'/ctags'; chmod 01777, $self->{path}.'/ctags';
 232 }
 233
 234 sub _group_add {
 235         my $self = shift;
 236         my ($xtra) = @_;
 237         $xtra .= join(',', @{$self->{users}});
 238         filedb_atomic_append(jailed_file('/etc/group'),
 239                 join(':', $self->{name}, $self->{crypt}, '\i', $xtra));
 240 }
 241
 242 sub _group_update {
 243         my $self = shift;
 244         my $xtra = join(',', @{$self->{users}});
 245         filedb_atomic_edit(jailed_file('/etc/group'),
 246                 sub {
 247                         $_ = $_[0];
 248                         chomp;
 249                         if ($self->{name} eq (split /:/)[0]) {
 250                                 # preserve readonly flag
 251                                 s/::([^:]*)$/:$1/ and $xtra = ":$xtra";
 252                                 return join(':', $self->{name}, $self->{crypt}, $self->{gid}, $xtra)."\n";
 253                         } else {
 254                                 return "$_\n";
 255                         }
 256                 }
 257         );
 258 }
 259
 260 sub _group_remove {
 261         my $self = shift;
 262         filedb_atomic_edit(jailed_file('/etc/group'),
 263                 sub {
 264                         $self->{name} ne (split /:/)[0] and return $_;
 265                 }
 266         );
 267 }
 268
 269 sub _hook_path {
 270         my $self = shift;
 271         my ($name) = @_;
 272         $self->{path}.'/hooks/'.$name;
 273 }
 274
 275 sub _hook_install {
 276         my $self = shift;
 277         my ($name) = @_;
 278         open SRC, "$Girocco::Config::basedir/hooks/$name" or die "cannot open hook $name: $!";
 279         open DST, '>'.$self->_hook_path($name) or die "cannot open hook $name for writing: $!";
 280         while (<SRC>) { print DST $_; }
 281         close DST;
 282         close SRC;
 283         chmod 0775, $self->_hook_path($name) or die "cannot chmod hook $name: $!";
 284 }
 285
 286 sub _hooks_install {
 287         my $self = shift;
 288         foreach my $hook ('post-receive', 'update', 'post-update') {
 289                 $self->_hook_install($hook);
 290         }
 291 }
 292
 293 # private constructor, do not use
 294 sub _new {
 295         my $class = shift;
 296         my ($name, $base_path, $path) = @_;
 297         valid_name($name) or die "refusing to create project with invalid name ($name)!";
 298         $path ||= "$base_path/$name.git";
 299         my $proj = { name => $name, base_path => $base_path, path => $path };
 300
 301         bless $proj, $class;
 302 }
 303
 304 # public constructor #0
 305 # creates a virtual project not connected to disk image
 306 # you can conjure() it later to disk
 307 sub ghost {
 308         my $class = shift;
 309         my ($name, $mirror) = @_;
 310         my $self = $class->_new($name, $Girocco::Config::reporoot);
 311         $self->{users} = [];
 312         $self->{mirror} = $mirror;
 313         $self->{email} = $self->{orig_email} = '';
 314         $self;
 315 }
 316
 317 # public constructor #1
 318 sub load {
 319         my $class = shift;
 320         my $name = shift || '';
 321
 322         open F, jailed_file("/etc/group") or die "project load failed: $!";
 323         while (<F>) {
 324                 chomp;
 325                 @_ = split /:+/;
 326                 next unless (shift eq $name);
 327
 328                 my $self = $class->_new($name, $Girocco::Config::reporoot);
 329                 (-d $self->{path}) or die "invalid path (".$self->{path}.") for project ".$self->{name};
 330
 331                 my $ulist;
 332                 ($self->{crypt}, $self->{gid}, $ulist) = @_;
 333                 $ulist ||= '';
 334                 $self->{users} = [split /,/, $ulist];
 335                 $self->{HEAD} = $self->get_HEAD;
 336                 $self->{orig_HEAD} = $self->{HEAD};
 337                 $self->{orig_users} = [@{$self->{users}}];
 338                 $self->{mirror} = ! -e $self->_nofetch_path;
 339                 $self->{clone_in_progress} = -e $self->_clonep_path;
 340                 $self->{clone_logged} = -e $self->_clonelog_path;
 341                 $self->{clone_failed} = -e $self->_clonefail_path;
 342                 $self->{ccrypt} = $self->{crypt};
 343
 344                 $self->_properties_load;
 345                 $self->{orig_email} = $self->{email};
 346                 return $self;
 347         }
 348         close F;
 349         undef;
 350 }
 351
 352 # $proj may not be in sane state if this returns false!
 353 sub cgi_fill {
 354         my $self = shift;
 355         my ($gcgi) = @_;
 356         my $cgi = $gcgi->cgi;
 357
 358         my ($pwd, $pwd2) = ($cgi->param('pwd'), $cgi->param('pwd2'));
 359         $pwd ||= ''; $pwd2 ||= ''; # in case passwords are disabled
 360         if ($pwd or not $self->{crypt}) {
 361                 $self->{crypt} = scrypt($pwd);
 362         }
 363
 364         if ($pwd2 and $pwd ne $pwd2) {
 365                 $gcgi->err("Our high-paid security consultants have determined that the admin passwords you have entered do not match each other.");
 366         }
 367
 368         $self->{cpwd} = $cgi->param('cpwd');
 369
 370         if ($Girocco::Config::project_owners eq 'email') {
 371                 $self->{email} = $gcgi->wparam('email');
 372                 valid_email($self->{email})
 373                         or $gcgi->err("Your email sure looks weird...?");
 374         }
 375
 376         $self->{url} = $gcgi->wparam('url');
 377         if ($self->{url}) {
 378                 valid_repo_url($self->{url})
 379                         or $gcgi->err("Invalid URL. Note that only HTTP and Git protocol is supported. If the URL contains funny characters, contact me.");
 380         }
 381
 382         $self->{desc} = $gcgi->wparam('desc');
 383         length($self->{desc}) <= 1024
 384                 or $gcgi->err("<b>Short</b> description length &gt; 1kb!");
 385
 386         $self->{README} = $gcgi->wparam('README');
 387         length($self->{README}) <= 8192
 388                 or $gcgi->err("README length &gt; 8kb!");
 389
 390         $self->{hp} = $gcgi->wparam('hp');
 391         if ($self->{hp}) {
 392                 valid_web_url($self->{hp})
 393                         or $gcgi->err("Invalid homepage URL. Note that only HTTP protocol is supported. If the URL contains funny characters, contact me.");
 394         }
 395
 396         $self->{users} = [grep { Girocco::User::valid_name($_) && Girocco::User::does_exist($_) } $cgi->param('user')];
 397
 398         $self->{HEAD} = $cgi->param('HEAD') if $cgi->param('HEAD');
 399
 400         # schedule deletion of tags (will be committed by update() after auth)
 401         $self->{tags_to_delete} = [$cgi->param('tags')];
 402
 403         $self->{notifymail} = $gcgi->wparam('notifymail');
 404         if ($self->{notifymail}) {
 405                 (valid_email_multi($self->{notifymail}) and length($self->{notifymail}) <= 512)
 406                         or $gcgi->err("Invalid notify e-mail address. Use mail,mail to specify multiple addresses; total length must not exceed 512 characters, however.");
 407         }
 408
 409         $self->{notifyjson} = $gcgi->wparam('notifyjson');
 410         if ($self->{notifyjson}) {
 411                 valid_web_url($self->{notifyjson})
 412                         or $gcgi->err("Invalid JSON notify URL. Note that only HTTP protocol is supported. If the URL contains funny characters, contact me.");
 413         }
 414
 415         $self->{notifycia} = $gcgi->wparam('notifycia');
 416         if ($self->{notifycia}) {
 417                 $self->{notifycia} =~ /^[a-zA-Z0-9._-]+$/
 418                         or $gcgi->err("Overly suspicious CIA notify project name. If it is actually valid, contact me.");
 419         }
 420
 421         if ($cgi->param('setstatusupdates')) {
 422                 my $val = $gcgi->wparam('statusupdates') || '0';
 423                 $self->{statusupdates} = $val ? 1 : 0;
 424         }
 425
 426         not $gcgi->err_check;
 427 }
 428
 429 sub form_defaults {
 430         my $self = shift;
 431         (
 432                 name => $self->{name},
 433                 email => $self->{email},
 434                 url => $self->{url},
 435                 desc => html_esc($self->{desc}),
 436                 README => html_esc($self->{README}),
 437                 hp => $self->{hp},
 438                 users => $self->{users},
 439                 notifymail => html_esc($self->{notifymail}),
 440                 notifyjson => html_esc($self->{notifyjson}),
 441                 notifycia => html_esc($self->{notifycia}),
 442         );
 443 }
 444
 445 sub authenticate {
 446         my $self = shift;
 447         my ($gcgi) = @_;
 448
 449         $self->{ccrypt} or die "Can't authenticate against a project with no password";
 450         $self->{cpwd} ||= '';
 451         unless ($self->{ccrypt} eq crypt($self->{cpwd}, $self->{ccrypt})) {
 452                 $gcgi->err("Your admin password does not match!");
 453                 return 0;
 454         }
 455         return 1;
 456 }
 457
 458 sub _setup {
 459         my $self = shift;
 460         my ($pushers) = @_;
 461
 462         $self->_mkdir_forkees;
 463
 464         mkdir($self->{path}) or die "mkdir $self->{path} failed: $!";
 465         if ($Girocco::Config::owning_group) {
 466                 my $gid = scalar(getgrnam($Girocco::Config::owning_group));
 467                 chown(-1, $gid, $self->{path}) or die "chgrp $gid $self->{path} failed: $!";
 468                 chmod(02775, $self->{path}) or die "chmod 2775 $self->{path} failed: $!";
 469         } else {
 470                 chmod(02777, $self->{path}) or die "chmod 2777 $self->{path} failed: $!";
 471         }
 472         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'init', '--bare', '--shared='.$self->shared_mode()) == 0
 473                 or die "git init $self->{path} failed: $?";
 474         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.denyNonFastforwards', 'false') == 0
 475                 or die "disabling receive.denyNonFastforwards failed: $?";
 476         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'gc.auto', '0') == 0
 477                 or die "disabling gc.auto failed: $?";
 478
 479         # /info must have right permissions,
 480         # and git init didn't do it for some reason.
 481         if ($Girocco::Config::owning_group) {
 482                 chmod(02775, $self->{path}."/info") or die "chmod 2775 $self->{path}/info failed: $!";
 483         } else {
 484                 chmod(02777, $self->{path}."/info") or die "chmod 2777 $self->{path}/info failed: $!";
 485         }
 486
 487         $self->_properties_save;
 488         $self->_alternates_setup;
 489         $self->_ctags_setup;
 490         $self->_group_remove;
 491         $self->_group_add($pushers);
 492         $self->_hooks_install;
 493         #$self->perm_initialize;
 494         $self->_update_index;
 495 }
 496
 497 sub premirror {
 498         my $self = shift;
 499
 500         $self->_setup(':');
 501         $self->_clonep(1);
 502         $self->perm_initialize;
 503 }
 504
 505 sub conjure {
 506         my $self = shift;
 507
 508         $self->_setup;
 509         $self->_nofetch(1);
 510         $self->perm_initialize;
 511 }
 512
 513 sub clone {
 514         my $self = shift;
 515
 516         unlink ($self->_clonefail_path()); # Ignore EEXIST error
 517         unlink ($self->_clonelog_path()); # Ignore EEXIST error
 518
 519         use IO::Socket;
 520         my $sock = IO::Socket::UNIX->new($Girocco::Config::chroot.'/etc/taskd.socket') or die "cannot connect to taskd.socket: $!";
 521         $sock->print("clone ".$self->{name}."\n");
 522         # Just ignore reply, we are going to succeed anyway and the I/O
 523         # would apparently get quite hairy.
 524         $sock->flush();
 525         sleep 2; # *cough*
 526         $sock->close();
 527 }
 528
 529 sub update {
 530         my $self = shift;
 531
 532         $self->_properties_save;
 533         $self->_group_update;
 534
 535         if (exists($self->{tags_to_delete})) {
 536                 $self->delete_ctag($_) foreach(@{$self->{tags_to_delete}});
 537         }
 538
 539         $self->set_HEAD($self->{HEAD}) unless $self->{orig_HEAD} eq $self->{HEAD};
 540
 541         my @users_add = grep { $a = $_; not scalar grep { $a eq $_ } $self->{orig_users} } $self->{users};
 542         my @users_del = grep { $a = $_; not scalar grep { $a eq $_ } $self->{users} } $self->{orig_users};
 543         $self->perm_user_add($_, Girocco::User::resolve_uid($_)) foreach (@users_add);
 544         $self->perm_user_del($_, Girocco::User::resolve_uid($_)) foreach (@users_del);
 545
 546         $self->_update_index if $self->{email} ne $self->{orig_email};
 547         $self->{orig_email} = $self->{email};
 548
 549         1;
 550 }
 551
 552 sub update_password {
 553         my $self = shift;
 554         my ($pwd) = @_;
 555
 556         $self->{crypt} = scrypt($pwd);
 557         $self->_group_update;
 558 }
 559
 560 # You can explicitly do this just on a ghost() repository too.
 561 sub delete {
 562         my $self = shift;
 563
 564         if (-d $self->{path}) {
 565                 system('rm', '-rf', $self->{path}) == 0
 566                         or die "rm -rf $self->{path} failed: $?";
 567         }
 568         # attempt to clean up any empty fork directories by removing them
 569         my @pelems = split('/', $self->{name});
 570         while (@pelems > 1) {
 571                 pop @pelems;
 572                 # okay to fail
 573                 rmdir join('/', $Girocco::Config::reporoot, @pelems) or last;
 574         }
 575         $self->_group_remove;
 576         $self->_update_index;
 577 }
 578
 579 sub _contains_files {
 580         my $dir = shift;
 581         (-d $dir) or return 0;
 582         opendir(my $dh, $dir) or die "opendir $dir failed: $!";
 583         while (my $entry = readdir($dh)) {
 584                 next if $entry eq '' || $entry eq '.' || $entry eq '..';
 585                 closedir($dh), return 1
 586                         if -f "$dir/$entry" ||
 587                         -d "$dir/$entry" && _contains_files("$dir/$entry");
 588         }
 589         closedir($dh);
 590         return 0;
 591 }
 592
 593 sub has_forks {
 594         my $self = shift;
 595
 596         return _contains_files($Girocco::Config::reporoot.'/'.$self->{name});
 597 }
 598
 599 sub is_empty {
 600         # A project is considered empty if the git repository does not
 601         # have any refs.  This means packed-refs does not exist or is
 602         # empty or only has lines starting with '#' AND there are no
 603         # files in the refs subdirectory hierarchy (no matter how deep).
 604
 605         my $self = shift;
 606
 607         (-d $self->{path}) or return 0;
 608         if (-e $self->{path}.'/packed-refs') {
 609                 open(my $pr, '<', $self->{path}.'/packed-refs')
 610                         or die "open $self->{path}./packed-refs failed: $!";
 611                 my $foundref = 0;
 612                 while (my $ref = <$pr>) {
 613                         next if $ref =~ /^#/;
 614                         $foundref = 1;
 615                         last;
 616                 }
 617                 close($pr);
 618                 return 0 if $foundref;
 619         }
 620         (-d $self->{path}.'/refs') or return 1;
 621         return !_contains_files($self->{path}.'/refs');
 622 }
 623
 624 sub delete_ctag {
 625         my $self = shift;
 626         my ($ctag) = @_;
 627
 628         # sanity check, disallow filenames starting with . .. or /
 629         unlink($self->{path}.'/ctags/'.$ctag) if($ctag !~ m|^(\.\.?)/|);
 630 }
 631
 632 sub get_ctag_names {
 633         my $self = shift;
 634         my @ctags = ();
 635         opendir(my $dh, $self->{path}.'/ctags')
 636                 or return @ctags;
 637         @ctags = grep { -f "$self->{path}/ctags/$_" } readdir($dh);
 638         closedir($dh);
 639         return @ctags;
 640 }
 641
 642 sub get_heads {
 643         my $self = shift;
 644         my $fh;
 645         open($fh, '-|', "$Girocco::Config::git_bin --git-dir=$self->{path} show-ref --heads") or die "could not get list of heads";
 646         my @res;
 647         while (<$fh>) {
 648                 chomp;
 649                 next if !m#^[0-9a-f]{40}\s+refs/heads/(.+)$ #x;
 650                 push @res, $1;
 651         }
 652         close $fh;
 653         @res;
 654 }
 655
 656 sub get_HEAD {
 657         my $self = shift;
 658         my $HEAD = `$Girocco::Config::git_bin --git-dir=$self->{path} symbolic-ref HEAD`;
 659         chomp $HEAD;
 660         die "could not get HEAD" if ($HEAD !~ m{^refs/heads/(.+)$});
 661         return $1;
 662 }
 663
 664 sub set_HEAD {
 665         my $self = shift;
 666         my $newHEAD = shift;
 667         # Cursory checks only -- if you want to break your HEAD, be my guest
 668         if ($newHEAD =~ /^\/|['<>]|\.\.|\/$/) {
 669                 die "grossly invalid new HEAD: $newHEAD";
 670         }
 671         system($Girocco::Config::git_bin, "--git-dir=$self->{path}", 'symbolic-ref', 'HEAD', "refs/heads/$newHEAD");
 672         die "could not set HEAD" if ($? >> 8);
 673 }
 674
 675 sub gen_auth {
 676         my $self = shift;
 677
 678         $self->{auth} = sha1_hex(time . $$ . rand() . join(':',%$self));
 679         my $expire = time + 24 * 3600;
 680         my $propval = "# DELAUTH $self->{auth} $expire";
 681         system('git', '--git-dir='.$self->{path}, 'config', 'gitweb.delauth', $propval);
 682         $self->{auth};
 683 }
 684
 685 sub del_auth {
 686         my $self = shift;
 687
 688         delete $self->{auth};
 689         system('git', '--git-dir='.$self->{path}, 'config', '--unset', 'gitweb.delauth');
 690 }
 691
 692 sub remove_user {
 693         my $self = shift;
 694         my ($username) = @_;
 695
 696         my $before_count = @{$self->{users}};
 697         $self->{users} = [grep { $_ ne $username } @{$self->{users}}];
 698         return @{$self->{users}} != $before_count;
 699 }
 700
 701 ### static methods
 702
 703 sub get_forkee_name {
 704         $_ = $_[0];
 705         (m#^(.*)/.*?$#)[0]; #
 706 }
 707 sub get_forkee_path {
 708         my $forkee = $Girocco::Config::reporoot.'/'.get_forkee_name($_[0]).'.git';
 709         -d $forkee ? $forkee : '';
 710 }
 711
 712 sub valid_name {
 713         $_ = $_[0];
 714         (not m#/# or -d get_forkee_path($_)) # will also catch ^/
 715                 and (not m#\./#)
 716                 and (not m#/$#)
 717                 and m#^[a-zA-Z0-9+./_-]+$#;
 718 }
 719
 720 sub does_exist {
 721         my ($name) = @_;
 722         valid_name($name) or die "tried to query for project with invalid name $name!";
 723         (-d $Girocco::Config::reporoot."/$name.git");
 724 }
 725
 726 sub get_full_list {
 727         my $class = shift;
 728         my @projects;
 729
 730         open F, jailed_file("/etc/group") or die "getting project list failed: $!";
 731         while (<F>) {
 732                 chomp;
 733                 @_ = split /:+/;
 734                 next if ($_[2] < 65536);
 735
 736                 push @projects, $_[0];
 737         }
 738         close F;
 739         @projects;
 740 }
 741
 742
 743 1;