Girocco/Project.pm

   1 package Girocco::Project;
   2
   3 use strict;
   4 use warnings;
   5
   6 BEGIN {
   7         use Girocco::Config;
   8         use Girocco::CGI;
   9         use Girocco::User;
  10         use Girocco::Util;
  11         use Girocco::HashUtil;
  12         use Girocco::Notify;
  13         use Girocco::ProjPerm;
  14         use base ('Girocco::ProjPerm::'.$Girocco::Config::permission_control); # mwahaha
  15 }
  16
  17 BEGIN {
  18         eval {
  19                 require Digest::SHA;
  20                 Digest::SHA->import(
  21                         qw(sha1_hex)
  22         );1} ||
  23         eval {
  24                 require Digest::SHA1;
  25                 Digest::SHA1->import(
  26                         qw(sha1_hex)
  27         );1} ||
  28         eval {
  29                 require Digest::SHA::PurePerl;
  30                 Digest::SHA::PurePerl->import(
  31                         qw(sha1_hex)
  32         );1} ||
  33         die "One of Digest::SHA or Digest::SHA1 or Digest::SHA::PurePerl "
  34         . "must be available\n";
  35 }
  36
  37 # NOTE: Each value may be either an ARRAY ref of a single element
  38 #       OR an ARRAY ref containing 1 or more ARRAY refs thus allowing
  39 #       a set of fields to be associated with a name (e.g. 'notifyjson')
  40 our $metadata_fields = {
  41         cleanmirror => ['Mirror refs', 'cleanmirror', 'placeholder'],
  42         homepage => ['Homepage URL', 'hp', 'text'],
  43         shortdesc => ['Short description', 'desc', 'text'],
  44         README => [
  45                 ['README Format', 'rmtype', 'select', 'Format of README data entered here', \&_rmtype_choices],
  46                 ['<span style="display:inline-block;vertical-align:top">'.
  47                 'README (&lt; 8 KiB)<br />leave blank for automatic</span>',
  48                 'README', 'textarea', 'Enter only &#x201c;<!-- comments -->&#x201d; '.
  49                 'to completely suppress any README']],
  50         notifymail => ['Commit notify &#x2013; mail to', 'notifymail', 'text',
  51                 'comma separated address list'],
  52         reverseorder => ['Show oldest first', 'reverseorder', 'checkbox',
  53                 'show new revisions in oldest to newest order (instead of the default newest to oldest older)'.
  54                 ' in &#x201c;Commit notify&#x201d; email when showing new revisions'],
  55         summaryonly => ['Summaries only', 'summaryonly', 'checkbox',
  56                 'suppress patch/diff output in &#x201c;Commit notify&#x201d; email when showing new revisions'],
  57         notifytag => ['Tag notify &#x2013; mail to', 'notifytag', 'text',
  58                 'comma separated address list &#x2013; if not empty, tag '.
  59                 'notifications are sent here INSTEAD of to '.
  60                 '&#x201c;Commit notify &#x2013; mail to&#x201d; address(es)'],
  61         notifyjson => [
  62                 ['Commit notify &#x2013; '.
  63                 '<a title="'.html_esc('single field name is &#x201c;payload&#x201d;', 1).'" href="'.
  64                 'https://docs.github.com/developers/webhooks-and-events/webhook-events-and-payloads#push'.
  65                 '">POST JSON</a> at', 'notifyjson', 'text'],
  66                 ['JSON Content-Type', 'jsontype', 'select', 'JSON POST Content-Type', \&_json_choices],
  67                 ['JSON Secret', 'jsonsecret', 'text', 'secret used to compute JSON POST signatures']],
  68         notifycia =>  ['Commit notify &#x2013; <a href="http://cia.vc/doc/">CIA project</a> name',
  69                 'notifycia', 'text', 'CIA is defunct &#x2013; this value is ignored'],
  70 };
  71
  72 sub _rmtype_choices {
  73         return ('Markdown', 'Plain Text', 'HTML');
  74 }
  75
  76 sub _json_choices {
  77         return ('application/x-www-form-urlencoded', 'application/json');
  78 }
  79
  80 sub _mkdir_forkees {
  81         my $self = shift;
  82         my @pelems = split('/', $self->{name});
  83         pop @pelems; # do not create dir for the project itself
  84         my $path = $self->{base_path};
  85         foreach my $pelem (@pelems) {
  86                 $path .= "/$pelem";
  87                 (-d "$path") or mkdir $path or die "mkdir $path: $!";
  88                 chmod 02775, $path; # ok if fails (dir may already exist and be owned by someone else)
  89         }
  90 }
  91
  92 # With a leading ':' get from project local config replacing ':' with 'gitweb.'
  93 # With a leading '%' get from project local config after removing '%'
  94 # With a leading '!' get boolean from project local config after removing '!' (prefixed with 'gitweb.' if no '.')
  95 # With a leading [:%!] a trailing ':defval' may be added to select the default value to use if unset
  96 # Otherwise it's a project file name to be loaded
  97 # %propmapro entries are loaded but never written
  98 # %propmapromirror entries are loaded only for mirrors but never written
  99
 100 our %propmap = (
 101         url => ':baseurl',
 102         email => ':owner',
 103         desc => 'description',
 104         README => 'README.html',
 105         READMEDATA => 'README.dat',
 106         rmtype => '%girocco.readmetype',
 107         hp => ':homepage',
 108         notifymail => '%hooks.mailinglist',
 109         notifytag => '%hooks.announcelist',
 110         notifyjson => '%hooks.jsonurl',
 111         jsontype => '%hooks.jsontype',
 112         jsonsecret => '%hooks.jsonsecret',
 113         notifycia => '%hooks.cianame',
 114         cleanmirror => '!girocco.cleanmirror',
 115         statusupdates => '!statusupdates:1',
 116         reverseorder => '!hooks.reverseorder',
 117         summaryonly => '!hooks.summaryonly',
 118 );
 119
 120 our %propmapro = (
 121         lastchange => ':lastchange',
 122         lastactivity => 'info/lastactivity',
 123         lastgc => ':lastgc',
 124         lastreceive => ':lastreceive',
 125         lastparentgc => ':lastparentgc',
 126         lastrefresh => ':lastrefresh',
 127         creationtime => '%girocco.creationtime',
 128         reposizek => '%girocco.reposizek',
 129         notifyhook => '%girocco.notifyhook:undef',
 130         origurl => ':baseurl',
 131 );
 132
 133 our %propmapromirror = (
 134         bangcount => '%girocco.bang.count',
 135         bangfirstfail => '%girocco.bang.firstfail',
 136         bangmessagesent => '!girocco.bang.messagesent',
 137         showpush => '!showpush',
 138 );
 139
 140 # Projects with any of these names will be disallowed to avoid possible
 141 # collisions with cgi script paths or chroot paths
 142 # NOTE: names are checked after using lc on them, so all entries MUST be lowercase
 143 our %reservedprojectnames = (
 144         admin => 1,     # /admin/ links
 145         alternates => 1, # .git/objects/info/alternates
 146         b => 1,         # /b/ -> bundle.cgi
 147         blog => 1,      # /blog/ links
 148         c => 1,         # /c/ -> cgit
 149         'git-receive-pack' => 1, # smart HTTP
 150         'git-upload-archive' => 1, # smart HTTP
 151         'git-upload-pack' => 1, # smart HTTP
 152         h => 1,         # /h/ -> html.cgi
 153         head => 1,      # .git/HEAD
 154         'http-alternates' => 1, # .git/objects/info/http-alternates
 155         info => 1,      # .git/info
 156         objects => 1,   # .git/objects
 157         packs => 1,     # .git/objects/info/packs
 158         r => 1,         # /r/ -> git http
 159         refs => 1,      # .git/refs
 160         w => 1,         # /w/ -> gitweb
 161         wiki => 1,      # /wiki/ links
 162         srv => 1,       # /srv/git/ -> chroot ssh git repositories
 163 );
 164
 165 sub _update_index {
 166         my $self = shift;
 167         system("$Girocco::Config::basedir/gitweb/genindex.sh", $self->{name});
 168 }
 169
 170 sub _readlocalconfigfile {
 171         my $self = shift;
 172         my $undefonerr = shift || 0;
 173         delete $self->{configfilehash};
 174         my $confighash = read_config_file_hash($self->{path} . "/config");
 175         my $result = 1;
 176         defined($confighash) || $undefonerr or $result = 0, $confighash = {};
 177         return undef unless defined($confighash);
 178         $self->{configfilehash} = $confighash;
 179         return $result;
 180 }
 181
 182 # @_[0]: argument to convert to boolean result (0 or 1)
 183 # @_[1]: value to use if argument is undef (default is 0)
 184 # Returns 0 or 1
 185 sub _boolval {
 186         my ($val, $def) = @_;
 187         defined($def) or $def = 0;
 188         defined($val) or $val = $def;
 189         $val =~ s/\s+//gs;
 190         $val = lc($val);
 191         return 0 if $val eq '' || $val eq 'false' || $val eq 'off' || $val eq 'no' || $val =~ /^[-+]?0+$/;
 192         return 1;
 193 }
 194
 195 sub _property_path {
 196         my $self = shift;
 197         my ($name) = @_;
 198         $self->{path}.'/'.$name;
 199 }
 200
 201 sub _property_fget {
 202         my $self = shift;
 203         my ($name, $nodef) = @_;
 204         my $pname = $propmap{$name};
 205         $pname = $propmapro{$name} unless $pname;
 206         $pname = $propmapromirror{$name} unless $pname;
 207         $pname or die "unknown property: $name";
 208         if ($pname =~ /^([:%!])([^:]+)(:.*)?$/) {
 209                 my ($where, $pname, $defval) = ($1, lc($2), substr(($3||":"),1));
 210                 $defval = undef if $defval eq "undef";
 211                 $defval = '' if $nodef;
 212                 $self->_readlocalconfigfile
 213                         unless ref($self->{configfilehash}) eq 'HASH';
 214                 $pname = "gitweb." . $pname if $where eq ':' or $where eq '!' && $pname !~ /[.]/;
 215                 my $val = $self->{configfilehash}->{$pname};
 216                 defined($val) or $val = $defval;
 217                 chomp $val if defined($val);
 218                 $val = _boolval($val, $defval) if $where eq '!';
 219                 return $nodef && !exists($self->{configfilehash}->{$pname}) ? undef : $val;
 220         }
 221
 222         open my $p, '<', $self->_property_path($pname) or return undef;
 223         my @value = <$p>;
 224         close $p;
 225         my $value = join('', @value); chomp $value;
 226         $value;
 227 }
 228
 229 sub _prop_is_same {
 230         my $self = shift;
 231         my ($name, $value) = @_;
 232         my $existing = $self->_property_fget($name, 1);
 233         defined($value) or $value = '';
 234         return defined($existing) && $existing eq $value;
 235 }
 236
 237 sub _property_fput {
 238         my $self = shift;
 239         my ($name, $value, $nosetsame) = @_;
 240         my $pname = $propmap{$name};
 241         $pname or die "unknown property: $name";
 242         my $defval = '';
 243         ($pname, $defval) = ($1, substr(($2||":"),1)) if $pname =~ /^([:%!][^:]+)(:.*)?$/;
 244         defined($value) or $value = $defval;
 245         if ($pname =~ s/^://) {
 246                 return if $nosetsame && $self->_prop_is_same($name, $value);
 247                 system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', "gitweb.$pname", $value);
 248                 return;
 249         } elsif ($pname =~ s/^%//) {
 250                 return if $nosetsame && $self->_prop_is_same($name, $value);
 251                 system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', $pname, $value);
 252                 return;
 253         } elsif ($pname =~ s/^!//) {
 254                 $pname = "gitweb." . $pname unless $pname =~ /[.]/;
 255                 $value = _boolval($value, $defval);
 256                 return if $nosetsame && $self->_prop_is_same($name, $value);
 257                 system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', '--bool', $pname, $value);
 258                 return;
 259         }
 260
 261         my $P = lock_file($self->_property_path($pname));
 262         chomp $value;
 263         $value ne '' and print $P "$value\n";
 264         close $P;
 265         unlock_file($self->_property_path($pname));
 266 }
 267
 268 sub _cleanup_datetime {
 269         my $self = shift;
 270         my $k = shift;
 271         defined($k) && $k ne "" or return;
 272         local $_ = $self->{$k}; defined($_) or $_ = '';
 273         {use bytes; s/[\x00-\x08\x0e-\x1f\x7f]+//gs;}
 274         s/\s+/ /gs;
 275         s/^\s+//s;
 276         s/\s+$//s;
 277         my $ts = parse_any_date($_);
 278         defined($ts) or $_ = '';
 279         /^(.*)$/ and $self->{$k} = $1;
 280 }
 281
 282 sub _cleanup_description {
 283         my $self = shift;
 284         local $_ = $self->{desc}; defined($_) or $_ = '';
 285         {use bytes; s/[\x00-\x08\x0e-\x1f\x7f]+//gs;}
 286         s/\r\n?/\n/gs;
 287         s/^\s+//s;
 288         s/\s+$//s;
 289         /\A(.*)$/m and $self->{desc} = $1;
 290 }
 291
 292 sub _cleanup_readme_str {
 293         local $_ = shift; defined($_) or $_ = '';
 294         {use bytes; s/[\x00-\x08\x0e-\x1f\x7f]+//gs;}
 295         s/\r\n?/\n/gs;
 296         s/^\s+//s;
 297         s/\s+$//s;
 298         $_ eq '' or $_ .= "\n";
 299         /^(.*)$/s and $_ = $1;
 300         return $_;
 301 }
 302
 303 sub _cleanup_readme {
 304         my $self = shift;
 305         $self->{README} = _cleanup_readme_str($self->{README});
 306         $self->{READMEDATA} = _cleanup_readme_str($self->{READMEDATA});
 307 }
 308
 309 my %rmtypes;
 310 BEGIN { %rmtypes = (
 311         default => 'Markdown',
 312         markdown => 'Markdown',
 313         'plain text' => 'Plain Text',
 314         plain => 'Plain Text',
 315         text => 'Plain Text',
 316         html => 'HTML'
 317 ) }
 318
 319 sub _lint_readme {
 320         my $self = shift;
 321         my $htmlfrag = shift;
 322         defined($htmlfrag) or $htmlfrag = 1;
 323         defined($self->{READMEDATA}) or $self->{READMEDATA} = '';
 324         my $rmtype = $rmtypes{lc($self->{rmtype} || '')};
 325         defined($rmtype) && $rmtype ne '' or $rmtype = $rmtypes{'default'};
 326         $self->{rmtype} = $rmtype;
 327         # Empty always just becomes empty with no errors
 328         if ($self->{READMEDATA} eq '') {
 329                 $self->{README} = '';
 330                 return 0;
 331         }
 332         if ($rmtype eq 'Plain Text') {
 333                 # Never any errors with this one
 334                 my $esc = $self->{READMEDATA};
 335                 $esc =~ s/&/&amp;/gs;
 336                 $esc =~ s/</&lt;/gs;
 337                 $self->{README} = '<pre class="plaintext">' . $esc . '</pre>';
 338                 return 0;
 339         }
 340         eval { require Markdown; 1 } or do {
 341                 return (1, "README: Markdown/HTML formats temporarily unavailable");
 342         };
 343         my @errs = ();
 344         if ($rmtype eq 'HTML') {
 345                 # Legacy HTML support but now sanitized with possible auto-fixup
 346                 my $output;
 347                 eval { $output = Markdown::ProcessRaw($self->{READMEDATA},
 348                         sanitize => 1, xmlcheck => 2, htmlauto => 0); 1; } or
 349                 do {
 350                         @errs = split(/\n+/, $@);
 351                         @errs or push(@errs, 'Invalid HTML');
 352
 353                         # Make one more attempt with htmlauto in case
 354                         # that's good enough to fix up the HTML and make it valid
 355                         eval { $output = Markdown::ProcessRaw($self->{READMEDATA},
 356                                 sanitize => 1, xmlcheck => 2, htmlauto => 1); 1; } and
 357                         do {
 358                                 @errs = ();
 359                         };
 360                 };
 361                 !@errs and $self->{README} = (chomp($output),$output);
 362         } else {
 363                 # Markdown format
 364                 my $output;
 365                 my $gwbase = url_path($Girocco::Config::gitweburl,1).$self->{name}.'.git';
 366                 my %mdopts = (
 367                         sanitize => 1,
 368                         xmlcheck => 2,
 369                         yamlmode => 1,
 370                         yamlvis => 0,
 371                         keepabs => 1,
 372                         base_prefix => $self->{name}.'.git',
 373                         url_prefix => $gwbase . '/blob/HEAD:',
 374                         img_prefix => $gwbase . '/blob_plain/HEAD:'
 375                 );
 376                 eval { $output = Markdown::Markdown($self->{READMEDATA}, %mdopts); 1; } or
 377                 do {
 378                         @errs = split(/\n+/, $@);
 379                         @errs or push(@errs, 'Invalid Markdown');
 380                 };
 381                 !@errs and $self->{README} = (chomp($output),$output);
 382         }
 383         return 0 unless @errs;
 384         my @fmterrs = ();
 385         foreach (@errs) {
 386                 $_ = html_esc($_) if $htmlfrag;
 387                 s/ /\&#160;/gs if $htmlfrag;
 388                 if ($htmlfrag) {
 389                         push @fmterrs, 'README: <tt>' . $_ . '</tt>';
 390                 } else {
 391                         push @fmterrs, 'README: ' . $_ . "\n";
 392                 }
 393         }
 394         if ($htmlfrag) {
 395                 return (scalar(@fmterrs), join("<br />\n", @fmterrs));
 396         } else {
 397                 return (scalar(@fmterrs), join("", @fmterrs));
 398         }
 399 }
 400
 401 sub _properties_load {
 402         my $self = shift;
 403         my $setprop = sub {
 404                 my $propval = $self->_property_fget($_);
 405                 defined($propval) and $self->{$_} = $propval;
 406         };
 407         &$setprop foreach keys %propmap;
 408         &$setprop foreach keys %propmapro;
 409         do {&$setprop foreach keys %propmapromirror} if $self->{mirror};
 410         $self->_readlocalconfigfile
 411                 unless ref($self->{configfilehash}) eq 'HASH';
 412         delete $self->{auth};
 413         my $val = $self->{configfilehash}->{'gitweb.repoauth'};
 414         defined($val) or $val = '';
 415         chomp $val;
 416         if ($val =~ /^# ([A-Z]+)AUTH ([0-9a-f]+) (\d+)/) {
 417                 my $expire = $3;
 418                 if (time < $expire) {
 419                         $self->{authtype} = $1;
 420                         $self->{auth} = $2;
 421                 }
 422         }
 423         if ($Girocco::Config::autogchack && ($self->{mirror} || $Girocco::Config::autogchack ne "mirror")) {
 424                 if (defined($self->{configfilehash}->{'girocco.autogchack'})) {
 425                         $self->{autogchack} = _boolval($self->{configfilehash}->{'girocco.autogchack'});
 426                 }
 427         }
 428         defined($self->{jsontype}) or $self->{jsontype} = "";
 429         $self->{jsontype} = lc($self->{jsontype});
 430         $self->{jsontype} eq 'application/x-www-form-urlencoded' || $self->{jsontype} eq 'application/json' or
 431                 $self->{jsontype} = 'application/x-www-form-urlencoded';
 432         defined($self->{jsonsecret}) or $self->{jsonsecret} = "";
 433         $self->_cleanup_datetime('lastactivity');
 434         $self->_cleanup_description;
 435         $self->_cleanup_readme;
 436         defined($self->{rmtype}) and $self->{rmtype} = $rmtypes{lc($self->{rmtype})};
 437         defined($self->{rmtype}) or $self->{rmtype} = "";
 438         if (!$self->{rmtype}) {
 439                 # default type is "Markdown" unless README ne '' but READMEDATA eq ''
 440                 if ($self->{README} ne '' && $self->{READMEDATA} eq '') {
 441                         # This was the only previously understood format
 442                         $self->{rmtype} = 'HTML';
 443                         $self->{READMEDATA} = $self->{README};
 444                 } else {
 445                         $self->{rmtype} = $rmtypes{'default'};
 446                 }
 447         }
 448         delete $self->{configfilehash};
 449 }
 450
 451 sub _set_bangagain {
 452         my $self = shift;
 453         my $fd;
 454         if ($self->{mirror} && defined($self->{origurl}) && $self->{url} &&
 455             $self->{origurl} ne $self->{url} && -e $self->_banged_path) {
 456                 if (open($fd, '>', $self->_bangagain_path)) {
 457                         close $fd;
 458                         chmod(0664, $self->_bangagain_path);
 459                 }
 460         }
 461 }
 462
 463 sub _properties_save {
 464         my $self = shift;
 465         delete $self->{configfilehash};
 466         foreach my $prop (keys %propmap) {
 467                 $self->_property_fput($prop, $self->{$prop}, 1);
 468         }
 469         $self->_set_bangagain;
 470 }
 471
 472 sub _nofetch_path {
 473         my $self = shift;
 474         $self->_property_path('.nofetch');
 475 }
 476
 477 sub _nofetch {
 478         my $self = shift;
 479         my ($nofetch) = @_;
 480         my $nf = $self->_nofetch_path;
 481         if ($nofetch) {
 482                 open my $x, '>', $nf or die "nofetch failed: $!";
 483                 close $x;
 484         } else {
 485                 ! -e $nf or unlink $nf or die "yesfetch failed: $!";
 486         }
 487 }
 488
 489 sub _banged_path {
 490         my $self = shift;
 491         $self->_property_path('.banged');
 492 }
 493
 494 sub _bangagain_path {
 495         my $self = shift;
 496         $self->_property_path('.bangagain');
 497 }
 498
 499 sub _gcp_path {
 500         my $self = shift;
 501         $self->_property_path('.gc_in_progress');
 502 }
 503
 504 sub _clonelog_path {
 505         my $self = shift;
 506         $self->_property_path('.clonelog');
 507 }
 508
 509 sub _clonefail_path {
 510         my $self = shift;
 511         $self->_property_path('.clone_failed');
 512 }
 513
 514 sub _clonep_path {
 515         my $self = shift;
 516         $self->_property_path('.clone_in_progress');
 517 }
 518
 519 sub _clonep {
 520         my $self = shift;
 521         my ($nofetch) = @_;
 522         my $np = $self->_clonep_path;
 523         if ($nofetch) {
 524                 open my $x, '>', $np or die "clonep failed: $!";
 525                 close $x;
 526         } else {
 527                 unlink $np or die "clonef failed: $!";
 528         }
 529 }
 530 sub _alternates_setup {
 531         use POSIX qw(:fcntl_h);
 532         my $self = shift;
 533         return unless $self->{name} =~ m#/#;
 534         my $forkee_name = get_forkee_name($self->{name});
 535         my $forkee_path = get_forkee_path($self->{name});
 536         return unless -d $forkee_path;
 537         mkdir $self->{path}.'/refs'; chmod 02775, $self->{path}.'/refs';
 538         mkdir $self->{path}.'/objects'; chmod 02775, $self->{path}.'/objects';
 539         mkdir $self->{path}.'/objects/info'; chmod 02775, $self->{path}.'/objects/info';
 540         mkdir $self->{path}.'/objects/pack'; chmod 02775, $self->{path}.'/objects/pack';
 541
 542         # If somehow either our objects/pack or the prospective alternate's pack
 543         # directory does not exist decline to set up any alternates
 544         my $altpath = "$forkee_path/objects";
 545         -d $self->{path}.'/objects/pack' && -d $altpath.'/pack' or return;
 546
 547         # If our objects/pack and the prospective alternate's pack directory
 548         # do not share the same device then decline to set up any alternates
 549         my ($selfdev) = stat($self->{path}.'/objects/pack');
 550         my ($altdev) = stat($altpath.'/pack');
 551         defined($selfdev) && defined($altdev) && $selfdev ne "" && $altdev ne "" && $selfdev == $altdev or return;
 552
 553         # We set up both alternates and http_alternates since we cannot use
 554         # relative path in alternates - that doesn't work recursively.
 555
 556         my $filename = $self->{path}.'/objects/info/alternates';
 557         open my $x, '>', $filename or die "alternates failed: $!";
 558         print $x "$altpath\n";
 559         close $x;
 560         chmod 0664, $filename or warn "cannot chmod $filename: $!";
 561
 562         if ($Girocco::Config::httppullurl) {
 563                 $filename = $self->{path}.'/objects/info/http-alternates';
 564                 open my $x, '>', $filename or die "http-alternates failed: $!";
 565                 my $upfork = $forkee_name;
 566                 do { print $x "$Girocco::Config::httppullurl/$upfork.git/objects\n"; } while ($upfork =~ s#/?.+?$## and $upfork); #
 567                 close $x;
 568                 chmod 0664, $filename or warn "cannot chmod $filename: $!";
 569         }
 570
 571         # copy lastactivity from the parent project
 572         if (open $x, '<', $forkee_path.'/info/lastactivity') {{
 573                 my $activity = <$x>;
 574                 close $x;
 575                 last unless $activity;
 576                 open $x, '>', $self->{path}.'/info/lastactivity' or last;
 577                 print $x $activity;
 578                 close $x;
 579                 chomp $activity;
 580                 $self->{'lastactivity'} = $activity;
 581         }}
 582
 583         # copy refs from parent project
 584         my $dupout;
 585         open $dupout, '>&1' or
 586                 die "could not dup STDOUT_FILENO: $!";
 587         my $packedrefsfd = POSIX::open("$self->{path}/packed-refs", O_WRONLY|O_TRUNC|O_CREAT, 0664);
 588         defined($packedrefsfd) && $packedrefsfd >= 0 or die "could not open fork's packed-refs file for writing: $!";
 589         POSIX::dup2($packedrefsfd, 1) or
 590                 die "could not dup2 STDOUT_FILENO: $!";
 591         POSIX::close($packedrefsfd);
 592         my $result = system($Girocco::Config::git_bin, "--git-dir=$forkee_path", 'for-each-ref', '--format=%(objectname) %(refname)');
 593         my $resultstr = $!;
 594         POSIX::dup2(fileno($dupout), 1);
 595         close($dupout);
 596         $result == 0 or die "could not create fork's packed-refs file data: $resultstr";
 597         unlink("$self->{path}/.delaygc") if -s "$self->{path}/packed-refs";
 598
 599         # initialize HEAD
 600         my $HEAD = get_git("--git-dir=$forkee_path", 'symbolic-ref', 'HEAD');
 601         defined($HEAD) && $HEAD =~ m,^refs/heads/., or $HEAD = 'refs/heads/master';
 602         chomp $HEAD;
 603         system($Girocco::Config::git_bin, "--git-dir=$self->{path}", 'symbolic-ref', 'HEAD', $HEAD);
 604         chmod 0664, "$self->{path}/packed-refs", "$self->{path}/HEAD";
 605 }
 606
 607 sub _set_changed {
 608         my $self = shift;
 609         my $fd;
 610         open $fd, '>', "$self->{path}/htmlcache/changed" and close $fd;
 611 }
 612
 613 sub _set_forkchange {
 614         my $self = shift;
 615         my $changedtoo = shift;
 616         return unless $self->{name} =~ m#/#;
 617         my $forkee_path = get_forkee_path($self->{name});
 618         return unless -d $forkee_path;
 619         # mark forkee as changed
 620         my $fd;
 621         open $fd, '>', $forkee_path.'/htmlcache/changed' and close $fd if $changedtoo;
 622         open $fd, '>', $forkee_path.'/htmlcache/forkchange' and close $fd;
 623         return if -e $forkee_path.'/htmlcache/summary.forkchange';
 624         open $fd, '>', $forkee_path.'/htmlcache/summary.forkchange' and close $fd;
 625 }
 626
 627 sub _ctags_setup {
 628         my $self = shift;
 629         my $perms = $Girocco::Config::permission_control eq 'Hooks' ? 02777 : 02775;
 630         mkdir $self->{path}.'/ctags'; chmod $perms, $self->{path}.'/ctags';
 631 }
 632
 633 sub _group_add {
 634         my $self = shift;
 635         my ($xtra) = @_;
 636         $xtra .= join(',', @{$self->{users}});
 637         my $crypt = $self->{crypt};
 638         defined($crypt) or $crypt = 'unknown';
 639         filedb_atomic_append(jailed_file('/etc/group'),
 640                 join(':', $self->{name}, $crypt, '\i', $xtra));
 641 }
 642
 643 sub _group_update {
 644         my $self = shift;
 645         my $xtra = join(',', @{$self->{users}});
 646         filedb_atomic_edit(jailed_file('/etc/group'),
 647                 sub {
 648                         $_ = $_[0];
 649                         chomp;
 650                         if ($self->{name} eq (split /:/)[0]) {
 651                                 # preserve readonly flag
 652                                 s/::([^:]*)$/:$1/ and $xtra = ":$xtra";
 653                                 return join(':', $self->{name}, $self->{crypt}, $self->{gid}, $xtra)."\n";
 654                         } else {
 655                                 return "$_\n";
 656                         }
 657                 }
 658         );
 659 }
 660
 661 sub _group_remove {
 662         my $self = shift;
 663         filedb_atomic_edit(jailed_file('/etc/group'),
 664                 sub {
 665                         $self->{name} ne (split /:/)[0] and return $_;
 666                 }
 667         );
 668 }
 669
 670 sub _hook_path {
 671         my $self = shift;
 672         my ($name) = @_;
 673         $self->{path}.'/hooks/'.$name;
 674 }
 675
 676 sub _hook_install {
 677         my $self = shift;
 678         my ($name) = @_;
 679         my $hooksdir = $self->{path}.'/hooks';
 680         my $oldmask = umask();
 681         umask($oldmask & ~0070);
 682         -d $hooksdir or mkdir $hooksdir or
 683           die "hooks directory does not exist and unable to create it for project " . $self->{name} . ": $!";
 684         umask($oldmask);
 685         my $globalhooks = $Girocco::Config::reporoot . "/_global/hooks";
 686         -f "$globalhooks/$name" && -r _ or die "cannot find hook $name: $!";
 687         ! -e $self->_hook_path($name) || unlink($self->_hook_path($name)) && ! -e $self->_hook_path($name) or
 688           die "hooks directory contains unremovable pre-existing hook $name: $!";
 689         symlink("$globalhooks/$name", $self->_hook_path($name)) or
 690           die "cannot create hook $name symlink: $!";
 691 }
 692
 693 sub _hooks_install {
 694         my $self = shift;
 695         foreach my $hook ('pre-auto-gc', 'pre-receive', 'post-commit', 'post-receive', 'update') {
 696                 $self->_hook_install($hook);
 697         }
 698 }
 699
 700 # private constructor, do not use
 701 sub _new {
 702         my $class = shift;
 703         my ($name, $base_path, $path, $orphan, $optp) = @_;
 704         does_exist(\$name,1) || valid_name(\$name, $orphan, $optp) or die "refusing to create project with invalid name ($name)!";
 705         $path ||= "$base_path/$name.git";
 706         my $proj = { name => $name, base_path => $base_path, path => $path };
 707
 708         bless $proj, $class;
 709 }
 710
 711 # public constructor #0
 712 # creates a virtual project not connected to disk image
 713 # you can conjure() it later to disk
 714 sub ghost {
 715         my $class = shift;
 716         my ($name, $mirror, $orphan, $optp) = @_;
 717         my $self = $class->_new($name, $Girocco::Config::reporoot, undef, $orphan, $optp);
 718         $self->{users} = [];
 719         $self->{mirror} = $mirror;
 720         $self->{email} = $self->{orig_email} = '';
 721         $self->{notifyjson} = $self->{orig_notifyjson} = '';
 722         $self;
 723 }
 724
 725 # public constructor #1
 726 sub load {
 727         my $class = shift;
 728         my $name = shift || '';
 729
 730         open my $fd, '<', jailed_file("/etc/group") or die "project load failed: $!";
 731         my $r = qr/^\Q$name\E:/;
 732         foreach (grep /$r/, <$fd>) {
 733                 chomp;
 734
 735                 my $self = $class->_new($name, $Girocco::Config::reporoot);
 736                 (-d $self->{path} && $self->_readlocalconfigfile(1))
 737                         or die "invalid path (".$self->{path}.") for project ".$self->{name};
 738
 739                 my (undef, $crypt, $gid, $ulist) = split /:/;
 740                 $gid =~ /^(\d+)$/ or next; $self->{gid} = $1;
 741                 { use bytes;
 742                 $crypt =~ /^([^:\x00-\x1F\x7F-\xFF]*)$/ or next; $self->{crypt} = $1; }
 743                 defined($ulist) or $ulist = '';
 744                 $ulist =~ /^((?:\w+(?:,\w+)*)?)$/ or next;
 745                 $self->{users} = [split /,/, $1];
 746                 $self->{HEAD} = $self->get_HEAD;
 747                 $self->{orig_HEAD} = $self->{HEAD};
 748                 $self->{orig_users} = [@{$self->{users}}];
 749                 $self->{mirror} = ! -e $self->_nofetch_path;
 750                 $self->{banged} = -e $self->_banged_path if $self->{mirror};
 751                 $self->{gc_in_progress} = -e $self->_gcp_path;
 752                 $self->{clone_in_progress} = -e $self->_clonep_path;
 753                 $self->{clone_logged} = -e $self->_clonelog_path;
 754                 $self->{clone_failed} = -e $self->_clonefail_path;
 755                 $self->{ccrypt} = $self->{crypt};
 756
 757                 $self->_properties_load;
 758                 $self->{orig_email} = $self->{email};
 759                 $self->{orig_notifyjson} = $self->{notifyjson};
 760                 $self->{loaded} = 1; # indicates self was loaded from etc/group file
 761                 close $fd;
 762                 return $self;
 763         }
 764         close $fd;
 765         undef;
 766 }
 767
 768 # $proj may not be in sane state if this returns false!
 769 # fields listed in %$metadata_fields that are NOT also
 770 # in @Girocco::Config::project_fields are totally ignored!
 771 sub cgi_fill {
 772         my $self = shift;
 773         my ($gcgi, $silent) = @_;
 774         my $cgi = $gcgi->cgi;
 775         my %allowedfields = map({$_ => 1} @Girocco::Config::project_fields);
 776         my $field_enabled = sub {
 777                 defined($cgi->param($_[0])) &&
 778                 (!exists($metadata_fields->{$_[0]}) || exists($allowedfields{$_[0]}))};
 779
 780         my $pwd = $cgi->param('pwd');
 781         my $pwd2 = $cgi->param('pwd2');
 782         # in case passwords are disabled
 783         defined($pwd) or $pwd = ''; defined($pwd2) or $pwd2 = '';
 784         if ($Girocco::Config::project_passwords and not $self->{crypt} and $pwd eq '' and $pwd2 eq '') {
 785                 $gcgi->err("Empty passwords are not permitted.");
 786         }
 787         if ($pwd ne '' or not $self->{crypt}) {
 788                 $self->{crypt} = scrypt_sha1($pwd);
 789         }
 790         if (($pwd ne '' || $pwd2 ne '') and $pwd ne $pwd2) {
 791                 $gcgi->err("Our high-paid security consultants have determined that the admin passwords you have entered do not match each other.");
 792         }
 793
 794         $self->{cpwd} = $cgi->param('cpwd');
 795
 796         my ($forkee,$project) = ($self->{name} =~ m#^(.*/)?([^/]+)$#);
 797         my $newtype = $forkee ? 'fork' : 'project';
 798         length($project) <= 64
 799                 or $gcgi->err("The $newtype name is longer than 64 characters. Do you really need that much?");
 800
 801         if ($Girocco::Config::project_owners eq 'email') {
 802                 $self->{email} = $gcgi->wparam('email');
 803                 valid_email($self->{email})
 804                         or $gcgi->err("Your email sure looks weird...?");
 805                 length($self->{email}) <= 96
 806                         or $gcgi->err("Your email is longer than 96 characters. Do you really need that much?");
 807         }
 808
 809         # No setting the url unless we're either new or an existing mirror!
 810         unless ($self->{loaded} && !$self->{mirror}) {
 811                 $self->{url} = $gcgi->wparam('url') ;
 812                 if ($field_enabled->('cleanmirror')) {
 813                         $self->{cleanmirror} = $gcgi->wparam('cleanmirror') || 0;
 814                 }
 815         }
 816         # Always validate the url if we're an existing mirror
 817         if ((defined($self->{url}) && $self->{url} ne '') || ($self->{loaded} && $self->{mirror})) {{
 818                 # Always allow the url to be left unchanged without validation when editing
 819                 last if $self->{loaded} && defined($self->{origurl}) && defined($self->{url}) && $self->{origurl} eq $self->{url};
 820                 valid_repo_url($self->{url})
 821                         or $gcgi->err("Invalid URL. Note that only HTTP and Git protocols are supported. If the URL contains funny characters, contact me.");
 822                 if ($Girocco::Config::restrict_mirror_hosts) {
 823                         my $mh = extract_url_hostname($self->{url});
 824                         is_dns_hostname($mh)
 825                                 or $gcgi->err("Invalid URL. Note that only DNS names are allowed, not IP addresses.");
 826                         !is_our_hostname($mh)
 827                                 or $gcgi->err("Invalid URL. Mirrors from this host are not allowed, please create a fork instead.");
 828                 }}
 829         }
 830
 831         if ($field_enabled->('desc')) {
 832                 $self->{desc} = to_utf8($gcgi->wparam('desc'), 1);
 833                 length($self->{desc}) <= 1024
 834                         or $gcgi->err("<b>Short</b> description length &gt; 1kb!");
 835         }
 836
 837         if ($field_enabled->('README')) {
 838                 $self->{rmtype} = $rmtypes{lc($gcgi->wparam('rmtype')||'')};
 839                 if (!$self->{rmtype}) {
 840                         $gcgi->err("Invalid README Format. Must be 'Markdown', 'Plain Text' or 'HTML'.");
 841                         $self->{rmtype} = 'Markdown';
 842                 }
 843                 $self->{READMEDATA} = _cleanup_readme_str(to_utf8($gcgi->wparam('README'), 1));
 844                 length($self->{READMEDATA}) <= 8192
 845                         or $gcgi->err("README length &gt; 8kb!");
 846                 my ($cnt, $err) = (0);
 847                 ($cnt, $err) = $self->_lint_readme if $gcgi->ok;
 848                 $gcgi->err($err), $gcgi->{err} += $cnt-1 if $cnt;
 849         }
 850
 851         if ($field_enabled->('hp')) {
 852                 $self->{hp} = $gcgi->wparam('hp');
 853                 if ($self->{hp}) {
 854                         valid_web_url($self->{hp})
 855                                 or $gcgi->err("Invalid homepage URL. Note that only HTTP protocol is supported. If the URL contains funny characters, contact me.");
 856                 }
 857         }
 858
 859         # No mucking about with users unless we're a push project
 860         if (($self->{loaded} && !$self->{mirror}) ||
 861             (!$self->{loaded} && (!defined($self->{url}) || $self->{url} eq ''))) {
 862                 my %users = ();
 863                 my @users = ();
 864                 foreach my $user ($cgi->multi_param('user')) {
 865                         if (!exists($users{$user})) {
 866                                 $users{$user} = 1;
 867                                 push(@users, $user) if Girocco::User::does_exist($user, 1);
 868                         }
 869                 }
 870                 $self->{users} = \@users;
 871         }
 872
 873         # HEAD can only be set with editproj, NOT regproj (regproj sets it automatically)
 874         # It may ALWAYS be set to what it was (even if there's no such refs/heads/...)
 875         my $newhead;
 876         if (defined($self->{orig_HEAD}) && $self->{orig_HEAD} ne '' &&
 877             defined($newhead = $cgi->param('HEAD')) && $newhead ne '') {
 878                 if ($newhead eq $self->{orig_HEAD} ||
 879                     get_git("--git-dir=$self->{path}", 'rev-parse', '--verify', '--quiet', 'refs/heads/'.$newhead)) {
 880                         $self->{HEAD} = $newhead;
 881                 } else {
 882                         $gcgi->err("Invalid default branch (no such ref)");
 883                 }
 884         }
 885
 886         # schedule deletion of tags (will be committed by update() after auth)
 887         $self->{tags_to_delete} = [$cgi->multi_param('tags')];
 888
 889         if ($field_enabled->('notifymail')) {
 890                 my $newaddrs = clean_email_multi($gcgi->wparam('notifymail'));
 891                 if ($newaddrs eq "" or (valid_email_multi($newaddrs) and length($newaddrs) <= 512)) {
 892                         $self->{notifymail} = $newaddrs;
 893                 } else {
 894                         $gcgi->err("Invalid notify e-mail address. Use mail,mail to specify multiple addresses; total length must not exceed 512 characters, however.");
 895                 }
 896                 if ($field_enabled->('reverseorder')) {
 897                         $self->{reverseorder} = $gcgi->wparam('reverseorder') || 0;
 898                 }
 899                 if ($field_enabled->('summaryonly')) {
 900                         $self->{summaryonly} = $gcgi->wparam('summaryonly') || 0;
 901                 }
 902         }
 903
 904         if ($field_enabled->('notifytag')) {
 905                 my $newaddrs = clean_email_multi($gcgi->wparam('notifytag'));
 906                 if ($newaddrs eq "" or (valid_email_multi($newaddrs) and length($newaddrs) <= 512)) {
 907                         $self->{notifytag} = $newaddrs;
 908                 } else {
 909                         $gcgi->err("Invalid notify e-mail address. Use mail,mail to specify multiple addresses; total length must not exceed 512 characters, however.");
 910                 }
 911         }
 912
 913         if ($field_enabled->('notifyjson')) {
 914                 $self->{notifyjson} = $gcgi->wparam('notifyjson');
 915                 if ($self->{notifyjson}) {
 916                         valid_web_url($self->{notifyjson})
 917                                 or $gcgi->err("Invalid JSON notify URL. Note that only HTTP protocol is supported. If the URL contains funny characters, contact me.");
 918                 }
 919                 $self->{jsontype} = $gcgi->wparam('jsontype');
 920                 defined($self->{jsontype}) && $self->{jsontype} ne "" or
 921                         $self->{jsontype} = 'application/x-www-form-urlencoded';
 922                 $self->{jsontype} = lc($self->{jsontype});
 923                 unless ($self->{jsontype} eq 'application/x-www-form-urlencoded' ||
 924                         $self->{jsontype} eq 'application/json') {
 925                         if ($self->{notifyjson}) {
 926                                 $gcgi->err("Invalid JSON Content-Type. Must be 'application/x-www-form-urlencoded' or 'application/json'.");
 927                         } else {
 928                                 $self->{jsontype} = 'application/x-www-form-urlencoded';
 929                         }
 930                 }
 931                 $self->{jsonsecret} = $gcgi->wparam('jsonsecret');
 932                 my $origurl = $self->{orig_notifyjson};
 933                 defined($origurl) or $origurl = '';
 934                 $self->{notifyjson} eq $origurl ||
 935                     $self->{notifyjson} eq ""   ||
 936                     Girocco::Notify::json_test_post($self) or
 937                         $gcgi->err("JSON notify URL failed POST test.");
 938         }
 939
 940         if ($field_enabled->('notifycia')) {
 941                 $self->{notifycia} = $gcgi->wparam('notifycia');
 942                 if ($self->{notifycia}) {
 943                         $self->{notifycia} =~ /^[a-zA-Z0-9._-]+$/
 944                                 or $gcgi->err("Overly suspicious CIA notify project name. If it's actually valid, don't contact me, CIA is defunct.");
 945                 }
 946         }
 947
 948         if ($cgi->param('setstatusupdates')) {
 949                 my $val = $gcgi->wparam('statusupdates') || '0';
 950                 $self->{statusupdates} = $val ? 1 : 0;
 951         }
 952
 953         $silent ? $gcgi->ok : !$gcgi->err_check;
 954 }
 955
 956 sub form_defaults {
 957         my $self = shift;
 958         (
 959                 name => $self->{name},
 960                 email => $self->{email},
 961                 url => $self->{url},
 962                 cleanmirror => $self->{cleanmirror},
 963                 desc => html_esc($self->{desc}),
 964                 README => html_esc($self->{READMEDATA}),
 965                 rmtype => $self->{rmtype},
 966                 hp => $self->{hp},
 967                 users => $self->{users},
 968                 notifymail => html_esc($self->{notifymail}),
 969                 reverseorder => $self->{reverseorder},
 970                 summaryonly => $self->{summaryonly},
 971                 notifytag => html_esc($self->{notifytag}),
 972                 notifyjson => html_esc($self->{notifyjson}),
 973                 jsontype => html_esc($self->{jsontype}),
 974                 jsonsecret => html_esc($self->{jsonsecret}),
 975                 notifycia => html_esc($self->{notifycia}),
 976
 977                 __project__ => $self
 978         );
 979 }
 980
 981 # return true if $enc_passwd is a match for $plain_passwd
 982 my $_check_passwd_match = sub {
 983         my $enc_passwd = shift;
 984         my $plain_passwd = shift;
 985         defined($enc_passwd) or $enc_passwd = '';
 986         defined($plain_passwd) or $plain_passwd = '';
 987         # $enc_passwd may be crypt or crypt_sha1
 988         if ($enc_passwd =~ m(^\$sha1\$(\d+)\$([./0-9A-Za-z]{1,64})\$[./0-9A-Za-z]{28}$)) {
 989                 # It's using sha1-crypt
 990                 return $enc_passwd eq crypt_sha1($plain_passwd, $2, -(0+$1));
 991         } else {
 992                 # It's using crypt
 993                 return $enc_passwd eq crypt($plain_passwd, $enc_passwd);
 994         }
 995 };
 996
 997 sub authenticate {
 998         my $self = shift;
 999         my ($gcgi) = @_;
1000
1001         $self->{ccrypt} or die "Can't authenticate against a project with no password";
1002         defined($self->{cpwd}) or $self->{cpwd} = '';
1003         unless ($_check_passwd_match->($self->{ccrypt}, $self->{cpwd})) {
1004                 $gcgi->err("Your admin password does not match!");
1005                 return 0;
1006         }
1007         return 1;
1008 }
1009
1010 # return true if the password from the file is empty or consists of all the same
1011 # character.  However, if the project was NOT loaded from the group file
1012 # (!self->{loaded}) then the password is never locked.
1013 # This function does NOT check $Girocco::Config::project_passwords, the caller
1014 # is responsible for doing so if desired.  Same for $self->{email}.
1015 sub is_password_locked {
1016         my $self = shift;
1017
1018         $self->{loaded} or return 0;
1019         my $testcrypt = $self->{ccrypt}; # The value from the group file
1020         defined($testcrypt) or $testcrypt = '';
1021         $testcrypt ne '' or return 1; # No password at all
1022         $testcrypt =~ /^(.)\1*$/ and return 1; # Bogus crypt value
1023         return 0; # Not locked
1024 }
1025
1026 sub _setup {
1027         use POSIX qw(strftime);
1028         my $self = shift;
1029         my ($pushers) = @_;
1030         my $fd;
1031
1032         defined($self->{path}) && $self->{path} ne "" or die "invalid setup call";
1033         $self->_mkdir_forkees unless $self->{adopt};
1034
1035         my $gid;
1036         $self->{adopt} || mkdir($self->{path}) or die "mkdir $self->{path} failed: $!";
1037         -d $self->{path} or die "unable to setup nonexistent $self->{path}";
1038         if ($Girocco::Config::owning_group) {
1039                 $gid = scalar(getgrnam($Girocco::Config::owning_group));
1040                 chown(-1, $gid, $self->{path}) or die "chgrp $gid $self->{path} failed: $!";
1041                 chmod(02775, $self->{path}) or die "chmod 02775 $self->{path} failed: $!";
1042         } else {
1043                 chmod(02777, $self->{path}) or die "chmod 02777 $self->{path} failed: $!";
1044         }
1045         delete $ENV{GIT_OBJECT_DIRECTORY};
1046         $ENV{'GIT_TEMPLATE_DIR'} = $Girocco::Config::chroot.'/var/empty';
1047         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'init', '--quiet', '--bare', '--shared='.$self->shared_mode()) == 0
1048                 or die "git init $self->{path} failed: $?";
1049         # we don't need these two, remove them (they will normally be created empty) if they exist
1050         rmdir $self->{path}."/branches";
1051         rmdir $self->{path}."/remotes";
1052         -d $self->{path}."/info" or mkdir $self->{path}."/info"
1053                 or die "info directory does not exist and unable to create it: $!";
1054         -d $self->{path}."/hooks" or mkdir $self->{path}."/hooks"
1055                 or die "hooks directory does not exist and unable to create it: $!";
1056         # clean out any kruft that may have come in from the initial template directory
1057         foreach my $cleandir (qw(hooks info)) {
1058                 if (opendir my $hooksdir, $self->{path}.'/'.$cleandir) {
1059                         unlink map "$self->{path}/$_", grep { $_ ne '.' && $_ ne '..' } readdir $hooksdir;
1060                         closedir $hooksdir;
1061                 }
1062         }
1063         if ($Girocco::Config::owning_group) {
1064                 chown(-1, $gid, $self->{path}."/hooks") or die "chgrp $gid $self->{path}/hooks failed: $!";
1065         }
1066         # hooks never world writable
1067         chmod 02775, $self->{path}."/hooks" or die "chmod 02775 $self->{path}/hooks failed: $!";
1068         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'core.compression', '5') == 0
1069                 or die "setting core.compression failed: $?";
1070         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'core.logAllRefUpdates', 'false') == 0
1071                 or die "disabling core.logAllRefUpdates failed: $?";
1072         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'core.ignoreCase', 'false') == 0
1073                 or die "disabling core.ignoreCase failed: $?";
1074         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'core.hooksPath',
1075                 ($Girocco::Config::localhooks ? $self->{path}."/hooks" : $Girocco::Config::reporoot . "/_global/hooks")) == 0
1076                 or die "setting core.hooksPath failed: $?";
1077         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'extensions.preciousObjects', 'true') == 0
1078                 or die "setting extensions.preciousObjects failed: $?";
1079         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'transfer.fsckObjects', 'true') == 0
1080                 or die "enabling transfer.fsckObjects failed: $?";
1081         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'transfer.unpackLimit', '1') == 0
1082                 or die "setting transfer.unpackLimit failed: $?";
1083         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.fsckObjects', 'true') == 0
1084                 or die "enabling receive.fsckObjects failed: $?";
1085         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.denyNonFastForwards', 'false') == 0
1086                 or die "disabling receive.denyNonFastForwards failed: $?";
1087         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.denyDeleteCurrent', 'warn') == 0
1088                 or die "disabling receive.denyDeleteCurrent failed: $?";
1089         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.autogc', '0') == 0
1090                 or die "disabling receive.autogc failed: $?";
1091         my ($S,$M,$H,$d,$m,$y) = gmtime(time());
1092         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.updateServerInfo', 'true') == 0
1093                 or die "enabling receive.updateServerInfo failed: $?";
1094         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'repack.writeBitmaps', 'true') == 0
1095                 or die "enabling repack.writeBitmaps failed: $?";
1096         $self->{creationtime} = strftime("%Y-%m-%dT%H:%M:%SZ", $S, $M, $H, $d, $m, $y, -1, -1, -1);
1097         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'girocco.creationtime', $self->{creationtime}) == 0
1098                 or die "setting girocco.creationtime failed: $?";
1099         -d $self->{path}."/htmlcache" or mkdir $self->{path}."/htmlcache"
1100                 or die "htmlcache directory does not exist and unable to create it: $!";
1101         -d $self->{path}."/bundles" or mkdir $self->{path}."/bundles"
1102                 or die "bundles directory does not exist and unable to create it: $!";
1103         -d $self->{path}."/reflogs" or mkdir $self->{path}."/reflogs"
1104                 or die "reflogs directory does not exist and unable to create it: $!";
1105         foreach my $file (qw(info/lastactivity .delaygc)) {
1106                 if (open $fd, '>', $self->{path}."/".$file) {
1107                         close $fd;
1108                         chmod 0664, $self->{path}."/".$file;
1109                 }
1110         }
1111
1112         # /info must have right permissions,
1113         # and git init didn't do it for some reason.
1114         # config must have correct permissions.
1115         # and Git 2.1.0 - 2.2.1 incorrectly add +x for some reason.
1116         # also make sure /refs, /objects and /htmlcache are correct too.
1117         my ($dmode, $dmodestr, $fmode, $fmodestr);
1118         if ($Girocco::Config::owning_group) {
1119                 ($dmode, $dmodestr) = (02775, '02775');
1120                 ($fmode, $fmodestr) = (0664,  '0664');
1121         } else {
1122                 ($dmode, $dmodestr) = (02777, '02777');
1123                 ($fmode, $fmodestr) = (0666,  '0666');
1124         }
1125         foreach my $dir (qw(info refs objects htmlcache bundles reflogs)) {
1126                 chmod($dmode, $self->{path}."/$dir") or die "chmod $dmodestr $self->{path}/$dir failed: $!";
1127         }
1128         foreach my $file (qw(config)) {
1129                 chmod($fmode, $self->{path}."/$file") or die "chmod $fmodestr $self->{path}/$file failed: $!";
1130         }
1131         # these ones are probably not strictly required but are nice to have
1132         foreach my $dir (qw(refs/heads refs/tags objects/info objects/pack)) {
1133                 -d $self->{path}."/$dir" or mkdir $self->{path}."/$dir";
1134                 chmod($dmode, $self->{path}."/$dir");
1135         }
1136         if ($Girocco::Config::owning_group && defined($gid) && $Girocco::Config::htmlcache_owning_group) {
1137                 my $htmlgid = scalar(getgrnam($Girocco::Config::htmlcache_owning_group));
1138                 if (defined($htmlgid) && $htmlgid ne $gid) {
1139                         chown(-1, $htmlgid, $self->{path}."/htmlcache") or die "chgrp $htmlgid $self->{path}/htmlcache failed: $!";
1140                         chmod($dmode, $self->{path}."/htmlcache") or die "chmod $dmodestr $self->{path}/htmlcache failed: $!";
1141                 }
1142         }
1143         if ($Girocco::Config::owning_group && defined($gid) && $Girocco::Config::ctags_owning_group) {
1144                 my $ctagsgid = scalar(getgrnam($Girocco::Config::ctags_owning_group));
1145                 if (defined($ctagsgid) && $ctagsgid ne $gid) {
1146                         chown(-1, $ctagsgid, $self->{path}."/ctags") or die "chgrp $ctagsgid $self->{path}/ctags failed: $!";
1147                         chmod($dmode, $self->{path}."/ctags") or die "chmod $dmodestr $self->{path}/ctags failed: $!";
1148                 }
1149         }
1150
1151         $self->_properties_save;
1152         $self->_alternates_setup unless $self->{noalternates} || $self->{adopt};
1153         $self->_ctags_setup;
1154         $self->_group_remove;
1155         $self->_group_add($pushers);
1156         $self->_hooks_install;
1157         $self->_update_index;
1158         $self->_set_changed;
1159         $self->_set_forkchange(1);
1160 }
1161
1162 sub premirror {
1163         my $self = shift;
1164
1165         delete $self->{adopt};
1166         $self->_setup(':');
1167         $self->_clonep(1);
1168         if ($Girocco::Config::autogchack) {
1169                 system("$Girocco::Config::basedir/jobd/maintain-auto-gc-hack.sh", $self->{name}) == 0
1170                         or die "maintain-auto-gc-hack.sh $self->{name} failed";
1171         }
1172         $self->perm_initialize;
1173 }
1174
1175 sub conjure {
1176         my $self = shift;
1177
1178         delete $self->{adopt};
1179         $self->_setup;
1180         $self->_nofetch(1);
1181         if ($Girocco::Config::autogchack && $Girocco::Config::autogchack ne "mirror") {
1182                 system("$Girocco::Config::basedir/jobd/maintain-auto-gc-hack.sh", $self->{name}) == 0
1183                         or die "maintain-auto-gc-hack.sh $self->{name} failed";
1184         }
1185         if ($Girocco::Config::mob && $Girocco::Config::mob eq "mob") {
1186                 system("$Girocco::Config::basedir/bin/create-personal-mob-area", $self->{name}) == 0
1187                         or die "create-personal-mob-area $self->{name} failed";
1188         }
1189         $self->perm_initialize;
1190 }
1191
1192 sub clone {
1193         my $self = shift;
1194
1195         unlink ($self->_clonefail_path()); # Ignore EEXIST error
1196         unlink ($self->_clonelog_path()); # Ignore EEXIST error
1197
1198         use IO::Socket;
1199         my $sock = IO::Socket::UNIX->new($Girocco::Config::chroot.'/etc/taskd.socket') or die "cannot connect to taskd.socket: $!";
1200         select((select($sock),$|=1)[0]);
1201         $sock->print("clone ".$self->{name}."\n");
1202         # Just ignore reply, we are going to succeed anyway and the I/O
1203         # would apparently get quite hairy.
1204         $sock->flush();
1205         sleep 2; # *cough*
1206         $sock->close();
1207 }
1208
1209 # call this after ghost instead of conjure or premirror+clone to adopt a pre-existing Git dir
1210 # ghost must be called with the proper value of $mirror for the to-be-adopted project
1211 # for mirrors the $proj->{url} needs to be set and for push projects the $proj->{users} array ref
1212 sub adopt {
1213         my $self = shift;
1214         my $name = $self->{name};
1215
1216         # Sanity check first
1217         defined($name) && $name ne "" && !$self->{loaded} or return undef;
1218         does_exist($name, 1) or return undef;
1219         defined($self->{path}) && $self->{path} eq $Girocco::Config::reporoot."/$name.git" or return undef;
1220         defined($self->{base_path}) && $self->{base_path} eq $Girocco::Config::reporoot or return undef;
1221         defined($self->{email}) && defined($self->{orig_email}) && defined($self->{mirror}) && ref($self->{users}) eq 'ARRAY'
1222                 or return undef;
1223         !defined(Girocco::Project->load($name)) or return undef;
1224         is_git_dir($self->{path}) or return undef;
1225         my $config = read_config_file_hash($self->{path}."/config");
1226         defined($config) && _boolval($config->{"core.bare"}) or die "refusing to adopt non-bare repository";
1227         defined(read_HEAD_symref($self->{path})) or die "refusing to adopt non-symref HEAD repository";
1228
1229         # Adopt the project by creating a new $chroot/etc/group entry and setting up anything that's missing
1230         $self->_nofetch(!$self->{mirror});
1231         $self->{adopt} = 1;
1232         $self->_setup($self->{mirror} ? ":" : "");
1233         delete $self->{adopt};
1234         if ($Girocco::Config::autogchack && ($self->{mirror} || $Girocco::Config::autogchack ne "mirror")) {
1235                 system("$Girocco::Config::basedir/jobd/maintain-auto-gc-hack.sh", $self->{name}) == 0
1236                         or die "maintain-auto-gc-hack.sh $self->{name} failed";
1237         }
1238         if (!$self->{mirror} && $Girocco::Config::mob && $Girocco::Config::mob eq "mob") {
1239                 system("$Girocco::Config::basedir/bin/create-personal-mob-area", $self->{name}) == 0
1240                         or die "create-personal-mob-area $self->{name} failed";
1241         }
1242         my $result = $self->perm_initialize;
1243         unlink("$self->{path}/.delaygc") unless $self->is_empty;
1244         # Pick up any pre-existing settings
1245         my $p = Girocco::Project->load($name);
1246         %$self = %$p if defined($p) && $p->{loaded};
1247         $result;
1248 }
1249
1250 sub _update_users {
1251         my $self = shift;
1252
1253         $self->_group_update;
1254         my @users_add = grep { $a = $_; not scalar grep { $a eq $_ } $self->{orig_users} } $self->{users};
1255         my @users_del = grep { $a = $_; not scalar grep { $a eq $_ } $self->{users} } $self->{orig_users};
1256         $self->perm_user_add($_, Girocco::User::resolve_uid($_)) foreach (@users_add);
1257         $self->perm_user_del($_, Girocco::User::resolve_uid($_)) foreach (@users_del);
1258 }
1259
1260 sub update {
1261         my $self = shift;
1262
1263         $self->_properties_save;
1264         $self->_update_users;
1265
1266         if (exists($self->{tags_to_delete})) {
1267                 $self->delete_ctag($_) foreach(@{$self->{tags_to_delete}});
1268         }
1269
1270         $self->set_HEAD($self->{HEAD}) unless $self->{orig_HEAD} eq $self->{HEAD};
1271
1272         $self->_update_index if $self->{email} ne $self->{orig_email};
1273         $self->{orig_email} = $self->{email};
1274         $self->_set_changed;
1275
1276         1;
1277 }
1278
1279 sub update_password {
1280         my $self = shift;
1281         my ($pwd) = @_;
1282
1283         $self->{crypt} = scrypt_sha1($pwd);
1284         $self->_group_update;
1285 }
1286
1287 # You can explicitly do this just on a ghost() repository too.
1288 sub delete {
1289         my $self = shift;
1290
1291         if (-d $self->{path}) {
1292                 system('rm', '-rf', $self->{path}) == 0
1293                         or die "rm -rf $self->{path} failed: $?";
1294         }
1295         # attempt to clean up any empty fork directories by removing them
1296         my @pelems = split('/', $self->{name});
1297         while (@pelems > 1) {
1298                 pop @pelems;
1299                 # okay to fail
1300                 rmdir join('/', $Girocco::Config::reporoot, @pelems) or last;
1301         }
1302         $self->_group_remove;
1303         $self->_update_index;
1304         $self->_set_forkchange(1);
1305
1306         1;
1307 }
1308
1309 # If the project's directory actually exists archive it before deleting it
1310 # Return full path to archived project ("" if none)
1311 sub archive_and_delete {
1312         my $self = shift;
1313
1314         unless (-d $self->{path}) {
1315                 $self->delete;
1316                 return "";
1317         }
1318
1319         # archive the project before deletion
1320         use POSIX qw(strftime);
1321         my $destdir = $self->{base_path};
1322         $destdir =~ s,(?<=[^/])/+$,,;
1323         $destdir .= "/_recyclebin/";
1324         $destdir .= $1 if $self->{name} =~ m,^(.*/)[^/]+$,;
1325         my $destbase = $self->{name};
1326         $destbase = $1 if $destbase =~ m,^.*/([^/]+)$,;
1327         my $oldmask = umask();
1328         umask($oldmask & ~0070);
1329         system('mkdir', '-p', $destdir) == 0 && -d $destdir
1330                 or die "mkdir -p \"$destdir\" failed: $?";
1331         umask($oldmask);
1332         my $suffix = '';
1333         if (-e "$destdir$destbase.git") {
1334                 $suffix = 1;
1335                 while (-e "$destdir$destbase~$suffix.git") {
1336                         ++$suffix;
1337                         last if $suffix >= 10000; # don't get too carried away
1338                 }
1339                 $suffix = '~'.$suffix;
1340         }
1341         not -e "$destdir$destbase$suffix.git"
1342                 or die "Unable to compute suitable archive path";
1343         system('mv', $self->{path}, "$destdir$destbase$suffix.git") == 0
1344                 or die "mv \"$self->{path}\" \"$destdir$destbase$suffix.git\" failed: $?";
1345         if (!$self->{mirror} && @{$self->{users}}) {
1346                 # Remember the user list at recycle time
1347                 system($Girocco::Config::git_bin, '--git-dir='.$destdir.$destbase.$suffix.".git",
1348                         'config', 'girocco.recycleusers', join(",", @{$self->{users}}));
1349         }
1350         my ($S,$M,$H,$d,$m,$y) = gmtime(time());
1351         my $recycletime = strftime("%Y-%m-%dT%H:%M:%SZ", $S, $M, $H, $d, $m, $y, -1, -1, -1);
1352         # We ought to do something if this fails, but the project has already been moved
1353         # so there's really nothing to be done at this point.
1354         system($Girocco::Config::git_bin, '--git-dir='.$destdir.$destbase.$suffix.".git",
1355                 'config', 'girocco.recycletime', $recycletime);
1356
1357         $self->delete;
1358         return $destdir.$destbase.$suffix.".git";
1359 }
1360
1361 sub _contains_files {
1362         my $dir = shift;
1363         (-d $dir) or return 0;
1364         opendir(my $dh, $dir) or die "opendir $dir failed: $!";
1365         while (my $entry = readdir($dh)) {
1366                 next if $entry eq '' || $entry eq '.' || $entry eq '..';
1367                 closedir($dh), return 1
1368                         if -f "$dir/$entry" ||
1369                         -d "$dir/$entry" && _contains_files("$dir/$entry");
1370         }
1371         closedir($dh);
1372         return 0;
1373 }
1374
1375 sub has_forks {
1376         my $self = shift;
1377
1378         return _contains_files($Girocco::Config::reporoot.'/'.$self->{name});
1379 }
1380
1381 # Returns an array of 0 or more array refs, one for each bundle:
1382 #  ->[0]: bundle creation time (seconds since epoch)
1383 #  ->[1]: bundle name (e.g. foo-xxxxxxxx.bundle)
1384 #  ->[2]: bundle size in bytes
1385 sub bundles {
1386         my $self = shift;
1387         use Time::Local;
1388
1389         return @{$self->{bundles}} if ref($self->{bundles}) eq 'ARRAY';
1390         my @blist = ();
1391         if (-d $self->{path}.'/bundles') {{
1392                 my $prefix = $self->{name};
1393                 $prefix =~ s|^.*[^/]/([^/]+)$|$1|;
1394                 opendir(my $dh, $self->{path}.'/bundles') or last;
1395                 while (my $bfile = readdir($dh)) {
1396                         next unless $bfile =~ /^\d{8}_\d{6}-[0-9a-f]{8}$/;
1397                         my $ctime = eval {timegm(
1398                                 0+substr($bfile,13,2), 0+substr($bfile,11,2), 0+substr($bfile,9,2),
1399                                 0+substr($bfile,6,2), 0+substr($bfile,4,2)-1, 0+substr($bfile,0,4))};
1400                         next unless $ctime;
1401                         open(my $bh, '<', $self->{path}.'/bundles/'.$bfile) or next;
1402                         my $f1 = <$bh>;
1403                         my $f2 = <$bh>;
1404                         $f1 = $self->{path}.'/objects/pack/'.$f1 if $f1 && $f1 !~ m|^/|;
1405                         $f2 = $self->{path}.'/objects/pack/'.$f2 if $f2 && $f2 !~ m|^/|;
1406                         close($bh);
1407                         next unless $f1 && $f2 && $f1 ne $f2;
1408                         chomp $f1;
1409                         chomp $f2;
1410                         next unless -e $f1 && -e $f2;
1411                         my $s1 = -s $f1 || 0;
1412                         my $s2 = -s $f2 || 0;
1413                         next unless $s1 || $s2;
1414                         push(@blist, [$ctime, "$prefix-".substr($bfile,16,8).".bundle", $s1+$s2]);
1415                 }
1416                 closedir($dh);
1417         }}
1418         @blist = sort({$b->[0] <=> $a->[0]} @blist);
1419         my %seen = ();
1420         my @result = ();
1421         foreach my $bndl (@blist) {
1422                 next if $seen{$bndl->[1]};
1423                 $seen{$bndl->[1]} = 1;
1424                 push(@result, $bndl);
1425         }
1426         $self->{bundles} = \@result;
1427         return @result;
1428 }
1429
1430 sub has_alternates {
1431         my $self = shift;
1432         my $af = $self->{path}.'/objects/info/alternates';
1433         -f $af && -s _ or return 0;
1434         my $nb = 0;
1435         open my $fh, '<', $af or return 1;
1436         while (my $line = <$fh>) {
1437                 next if $line =~ /^$/ || $line =~ /^#/;
1438                 $nb = 1;
1439                 last;
1440         }
1441         close $fh;
1442         return $nb;
1443 }
1444
1445 sub has_bundle {
1446         my $self = shift;
1447
1448         return scalar($self->bundles);
1449 }
1450
1451 sub _has_notifyhook {
1452         my $self = shift;
1453         my $val = $Girocco::Config::default_notifyhook;
1454         defined($self->{'notifyhook'}) and $val = $self->{'notifyhook'};
1455         return (defined($val) && $val ne "") ? $val : undef;
1456 }
1457
1458 # returns true if any of the notify fields are non-empty
1459 sub has_notify {
1460         my $self = shift;
1461         # We do not ckeck notifycia since it's defunct
1462         return
1463                 $self->{'notifymail'} || $self->{'notifytag'} ||
1464                 $self->{'notifyjson'} ||
1465                 !!$self->_has_notifyhook;
1466 }
1467
1468 sub is_empty {
1469         # A project is considered empty if the git repository does not
1470         # have any refs.  This means packed-refs does not exist or is
1471         # empty or only has lines starting with '#' AND there are no
1472         # files in the refs subdirectory hierarchy (no matter how deep).
1473
1474         my $self = shift;
1475
1476         (-d $self->{path}) or return 0;
1477         if (-e $self->{path}.'/packed-refs') {
1478                 open(my $pr, '<', $self->{path}.'/packed-refs')
1479                         or die "open $self->{path}./packed-refs failed: $!";
1480                 my $foundref = 0;
1481                 while (my $ref = <$pr>) {
1482                         next if $ref =~ /^#/;
1483                         $foundref = 1;
1484                         last;
1485                 }
1486                 close($pr);
1487                 return 0 if $foundref;
1488         }
1489         (-d $self->{path}.'/refs') or return 1;
1490         return !_contains_files($self->{path}.'/refs');
1491 }
1492
1493 # returns array:
1494 # [0]: earliest possible scheduled next gc, undef if lastgc not set
1495 # [1]: approx. latest possible scheduled next gc, undef if lastgc not set
1496 # Both values (if not undef) are seconds since epoch
1497 # Result only considers lastgc and min_gc_interval nothing else
1498 sub next_gc {
1499         my $self = shift;
1500         my $lastgcepoch = parse_any_date($self->{lastgc});
1501         return (undef, undef) unless defined $lastgcepoch;
1502         return ($lastgcepoch + $Girocco::Config::min_gc_interval,
1503                 int($lastgcepoch + 1.25 * $Girocco::Config::min_gc_interval +
1504                                 $Girocco::Config::min_mirror_interval));
1505 }
1506
1507 # returns boolean (0 or 1)
1508 # Attempts to determine whether or not a gc (and corresponding build
1509 # of a .bitmap/.bndl file) will actually take place at the next_gc
1510 # time (as returned by next_gc).  Whether or not a .bitmap and .bndl
1511 # end up being built depends on whether or not the local object graph
1512 # is complete.  In general if has_alternates is true then a .bitmap/.bndl
1513 # is not possible because the object graph will be incomplete,
1514 # but it *is* possible that even though the repository has_alternates,
1515 # it does not actually borrow any objects so a .bitmap/.bndl will build
1516 # in spite of the presence of alternates -- but this is expected to be rare.
1517 # The result is a best guess and false return value is not an absolute
1518 # guarantee that gc will not take place at the next interval, but it probably
1519 # will not if nothing changes in the meantime.
1520 sub needs_gc {
1521         my $self = shift;
1522         my $lgc = parse_any_date($self->{lastgc});
1523         my $lrecv = parse_any_date($self->{lastreceive});
1524         my $lpgc = parse_any_date($self->{lastparentgc});
1525         return 1 unless defined($lgc) && defined($lrecv);
1526         if ($self->has_alternates) {
1527                 return 1 unless defined($lpgc);
1528                 return 1 unless $lpgc < $lgc;
1529         }
1530         return 1 unless $lrecv < $lgc;
1531         # We don't try running any "is_dirty" check, so if somehow the
1532         # repository became dirty without updating lastreceive we might
1533         # incorrectly return false instead of true.
1534         return 0;
1535 }
1536
1537 sub delete_ctag {
1538         my $self = shift;
1539         my ($ctag) = @_;
1540
1541         # sanity check, disallow filenames starting with . .. or /
1542         unlink($self->{path}.'/ctags/'.$ctag)
1543                 unless !defined($ctag) || $ctag =~ m|^/| || $ctag =~ m{(?:^|/)(?:\.\.?)(?:/|$)};
1544 }
1545
1546 # returns new tag count value on success (will always be >= 1) otherwise undef
1547 sub add_ctag {
1548         my $self = shift;
1549         my $ctag = valid_tag(shift);
1550         my $nochanged = shift;
1551
1552         # sanity check, disallow filenames starting with . .. or /
1553         return undef if !defined($ctag) || $ctag =~ m|^/| || $ctag =~ m{(?:^|/)(?:\.\.?)(?:/|$)};
1554
1555         my $val = 0;
1556         my $ct;
1557         if (open $ct, '<', $self->{path}."/ctags/$ctag") {
1558                 my $count = <$ct>;
1559                 close $ct;
1560                 defined $count or $count = '';
1561                 chomp $count;
1562                 $val = $count =~ /^[1-9]\d*$/ ? $count : 1;
1563         }
1564         ++$val;
1565         my $oldmask = umask();
1566         umask($oldmask & ~0060);
1567         open $ct, '>', $self->{path}."/ctags/$ctag" and print $ct $val."\n" and close $ct;
1568         $self->_set_changed unless $nochanged;
1569         $self->_set_forkchange unless $nochanged;
1570         umask($oldmask);
1571         return $val;
1572 }
1573
1574 sub get_ctag_names {
1575         my $self = shift;
1576         my @ctags = ();
1577         opendir(my $dh, $self->{path}.'/ctags')
1578                 or return @ctags;
1579         @ctags = grep { -f "$self->{path}/ctags/$_" } readdir($dh);
1580         closedir($dh);
1581         return sort({lc($a) cmp lc($b)} @ctags);
1582 }
1583
1584 sub get_heads {
1585         my $self = shift;
1586         my $fh;
1587         my $heads = get_git("--git-dir=$self->{path}", 'for-each-ref', '--format=%(objectname) %(refname)', 'refs/heads');
1588         defined($heads) or $heads = '';
1589         chomp $heads;
1590         my @res = ();
1591         foreach (split(/\n/, $heads)) {
1592                 chomp;
1593                 next if !m#^[0-9a-f]{40}\s+refs/heads/(.+)$ #x;
1594                 push @res, $1;
1595         }
1596         push(@res, $self->{orig_HEAD}) if !@res && defined($self->{orig_HEAD}) && $self->{orig_HEAD} ne '';
1597         @res;
1598 }
1599
1600 sub get_HEAD {
1601         my $self = shift;
1602         my $HEAD = read_HEAD_ref($self->{path});
1603         defined($HEAD) && $HEAD ne "" or die "could not get HEAD";
1604         return $1 if $HEAD =~ m{^refs/heads/(.+)$};
1605         return "[other]" if $HEAD =~ m{^refs/};
1606         return "[detached]" if $HEAD =~ m{^[0-9a-fA-F]{4,}$};
1607         return "[invalid]";
1608 }
1609
1610 sub set_HEAD {
1611         my $self = shift;
1612         my $newHEAD = shift;
1613         # Cursory checks only -- if you want to break your HEAD, be my guest
1614         if ($newHEAD =~ /^\/|^\.|[\x00-\x1f \x7f\[~^'<>*?\\:]|\@\{|\.\.|\.lock$|\.$|\/$/) {
1615                 die "grossly invalid new HEAD: $newHEAD";
1616         }
1617         system($Girocco::Config::git_bin, "--git-dir=$self->{path}", 'symbolic-ref', 'HEAD', "refs/heads/$newHEAD");
1618         die "could not set HEAD" if ($? >> 8);
1619         ! -d "$self->{path}/mob" || $Girocco::Config::mob ne 'mob'
1620                 or system('cp', '-p', '-f', "$self->{path}/HEAD", "$self->{path}/mob/HEAD") == 0;
1621 }
1622
1623 sub gen_auth {
1624         my $self = shift;
1625         my ($type) = @_;
1626         $type = 'REPO' unless $type && $type =~ /^[A-Z]+$/;
1627
1628         $self->{authtype} = $type;
1629         {
1630                 no warnings;
1631                 $self->{auth} = sha1_hex(time . $$ . rand() . join(':',%$self));
1632         }
1633         my $expire = time + 24 * 3600;
1634         my $propval = "# ${type}AUTH $self->{auth} $expire";
1635         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'gitweb.repoauth', $propval);
1636         $self->{auth};
1637 }
1638
1639 sub del_auth {
1640         my $self = shift;
1641
1642         delete $self->{auth};
1643         delete $self->{authtype};
1644         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', '--unset', 'gitweb.repoauth');
1645 }
1646
1647 sub remove_user {
1648         my $self = shift;
1649         my ($username) = @_;
1650
1651         my $before_count = @{$self->{users}};
1652         $self->{users} = [grep { $_ ne $username } @{$self->{users}}];
1653         return @{$self->{users}} != $before_count;
1654 }
1655
1656 ### static methods
1657
1658 sub get_forkee_name {
1659         local $_ = $_[0];
1660         (m#^(.*)/.*?$#)[0]; #
1661 }
1662
1663 sub get_forkee_path {
1664         no warnings; # avoid silly 'unsuccessful stat on filename with \n' warning
1665         my $forkee = $Girocco::Config::reporoot.'/'.get_forkee_name($_[0]).'.git';
1666         -d $forkee ? $forkee : '';
1667 }
1668
1669 # Ultimately the full project/fork name could end up being part of a Git ref name
1670 # when a project's forks are combined into one giant repository for efficiency.
1671 # That means that the project/fork name must satisfy the Git ref name requirements:
1672 #
1673 #  1. Characters with an ASCII value less than or equal to 32 are not allowed
1674 #  2. The character with an ASCII value of 0x7F is not allowed
1675 #  3. The characters '~', '^', ':', '\', '*', '?', and '[' are not allowed
1676 #  4. The character '/' is a separator and is not allowed within a name
1677 #  5. The name may not start with '.' or end with '.'
1678 #  6. The name may not end with '.lock'
1679 #  7. The name may not contain the '..' sequence
1680 #  8. The name may not contain the '@{' sequence
1681 #  9. If multiple components are used (separated by '/'), no empty '' components
1682 #
1683 # We also prohibit a trailing '.git' on any path component and futher restrict
1684 # the allowed characters to alphanumeric and [+._-] where names must start with
1685 # an alphanumeric.
1686
1687 sub _valid_name_characters {
1688         local $_ = $_[0];
1689         (not m#^[/+._-]#)
1690                 and (not m#//#)
1691                 and (not m#\.\.#)
1692                 and (not m#/[+._-]#)
1693                 and (not m#\./#)
1694                 and (not m#\.$#)
1695                 and (not m#\.git/#i)
1696                 and (not m#\.git$#i)
1697                 and (not m#\.idx/#i)
1698                 and (not m#\.idx$#i)
1699                 and (not m#\.lock/#i)
1700                 and (not m#\.lock$#i)
1701                 and (not m#\.pack/#i)
1702                 and (not m#\.pack$#i)
1703                 and (not m#\.bundle/#i)
1704                 and (not m#\.bundle$#i)
1705                 and (not m#/$#)
1706                 and (not m/^[a-fA-F0-9]{38}$/)
1707                 and m#^[a-zA-Z0-9/+._-]+$#
1708                 and !has_reserved_suffix($_, $_[1], $_[2]);
1709 }
1710
1711 # $_[0] => prospective project name (WITHOUT trailing .git)
1712 # $_[1] => true to allow orphans (i.e. two-or-more-level-deep projects without a parent)
1713 #          (the directory in which the orphan will be created must, however, already exist)
1714 # $_[2] => true to allow orphans w/o needed directory if $_[1] also true (like mkdir -p)
1715 # If $_[0] is a SCALAR ref, ${$_[0]} contains the name and will be untainted on success.
1716 sub valid_name {
1717         no warnings; # avoid silly 'unsuccessful stat on filename with \n' warning
1718         local $_ = $_[0];
1719         my $mayberef_name = $_;
1720         ref($_) eq 'SCALAR' and $_ = $$_;
1721         my $rv = (
1722                 _valid_name_characters($_) and not exists($reservedprojectnames{lc($_)})
1723                 and @{[m#/#g]} <= 5 # maximum fork depth is 5
1724                 and ((not m#/#) or -d get_forkee_path($_) or ($_[1] and ($_[2] or -d $Girocco::Config::reporoot.'/'.get_forkee_name($_))))
1725                 and (! -f $Girocco::Config::reporoot."/$_.git")
1726         );
1727         $rv && ref($mayberef_name) eq 'SCALAR' && m|^(.+)$| and $$mayberef_name = $1;
1728         return $rv;
1729 }
1730
1731 # It's possible that some forks have been kept but the forkee is gone.
1732 # In this case the standard valid_name check is too strict.
1733 # If $_[0] is a SCALAR ref, ${$_[0]} contains the name and will be untainted on success.
1734 sub does_exist {
1735         no warnings; # avoid silly 'unsuccessful stat on filename with \n' warning
1736         my ($mayberef_name, $nodie) = @_;
1737         my $name = ref($mayberef_name) eq 'SCALAR' ? $$mayberef_name : $mayberef_name;
1738         my $okay = (
1739                 _valid_name_characters($name, $Girocco::Config::reporoot, ".git")
1740                 and ((not $name =~ m#/#)
1741                         or -d get_forkee_path($name)
1742                         or -d $Girocco::Config::reporoot.'/'.get_forkee_name($name)));
1743         (!$okay && $nodie) and return undef;
1744         !$okay and die "tried to query for project with invalid name $name!";
1745         -d $Girocco::Config::reporoot."/$name.git" or return undef;
1746         ref($mayberef_name) eq 'SCALAR' && $name =~ m|^(.+)$| and $$mayberef_name = $1;
1747         return 1;
1748 }
1749
1750 sub get_full_list {
1751         open my $fd, '<', jailed_file("/etc/group") or die "getting project list failed: $!";
1752         my @projects = map {/^([^:_\s#][^:\s#]*):[^:]*:\d{5,}:/ ? $1 : ()} <$fd>;
1753         close $fd;
1754         @projects;
1755 }
1756
1757
1758 1;