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 sub _mkdir_forkees {
  16         my $self = shift;
  17         my @pelems = split('/', $self->{name});
  18         pop @pelems; # do not create dir for the project itself
  19         my $path = $self->{base_path};
  20         foreach my $pelem (@pelems) {
  21                 $path .= "/$pelem";
  22                 (-d "$path") or mkdir $path or die "mkdir $path: $!";
  23                 chmod 0775, $path; # ok if fails (dir may already exist and be owned by someone else)
  24         }
  25 }
  26
  27 our %propmap = (
  28         url => 'base_url',
  29         email => 'owner',
  30         desc => 'description',
  31         README => 'README.html',
  32         hp => 'homepage',
  33 );
  34
  35 sub _property_path {
  36         my $self = shift;
  37         my ($name) = @_;
  38         $self->{path}.'/'.$name;
  39 }
  40
  41 sub _property_fget {
  42         my $self = shift;
  43         my ($name) = @_;
  44         $propmap{$name} or die "unknown property: $name";
  45         open P, $self->_property_path($propmap{$name}) or return undef;
  46         my @value = <P>;
  47         close P;
  48         my $value = join('', @value); chomp $value;
  49         $value;
  50 }
  51
  52 sub _property_fput {
  53         my $self = shift;
  54         my ($name, $value) = @_;
  55         $propmap{$name} or die "unknown property: $name";
  56         $value ||= '';
  57
  58         my $P = lock_file($self->_property_path($propmap{$name}));
  59         $value ne '' and print $P "$value\n";
  60         close $P;
  61         unlock_file($self->_property_path($propmap{$name}));
  62 }
  63
  64 sub _properties_load {
  65         my $self = shift;
  66         foreach my $prop (keys %propmap) {
  67                 $self->{$prop} = $self->_property_fget($prop);
  68         }
  69 }
  70
  71 sub _properties_save {
  72         my $self = shift;
  73         foreach my $prop (keys %propmap) {
  74                 $self->_property_fput($prop, $self->{$prop});
  75         }
  76 }
  77
  78 sub _nofetch_path {
  79         my $self = shift;
  80         $self->_property_path('.nofetch');
  81 }
  82
  83 sub _nofetch {
  84         my $self = shift;
  85         my ($nofetch) = @_;
  86         my $np = $self->_nofetch_path;
  87         if ($nofetch) {
  88                 open X, '>'.$np or die "nofetch failed: $!";
  89                 close X;
  90         } else {
  91                 unlink $np or die "yesfetch failed: $!";
  92         }
  93 }
  94
  95 sub _clonelog_path {
  96         my $self = shift;
  97         $self->_property_path('.clonelog');
  98 }
  99
 100 sub _clonefail_path {
 101         my $self = shift;
 102         $self->_property_path('.clone_failed');
 103 }
 104
 105 sub _clonep_path {
 106         my $self = shift;
 107         $self->_property_path('.clone_in_progress');
 108 }
 109
 110 sub _clonep {
 111         my $self = shift;
 112         my ($nofetch) = @_;
 113         my $np = $self->_clonep_path;
 114         if ($nofetch) {
 115                 open X, '>'.$np or die "clonep failed: $!";
 116                 close X;
 117         } else {
 118                 unlink $np or die "clonef failed: $!";
 119         }
 120 }
 121 sub _alternates_setup {
 122         my $self = shift;
 123         return unless $self->{name} =~ m#/#;
 124         my $forkee_name = get_forkee_name($self->{name});
 125         my $forkee_path = get_forkee_path($self->{name});
 126         return unless -d $forkee_path;
 127         mkdir $self->{path}.'/refs'; chmod 0775, $self->{path}.'/refs';
 128         mkdir $self->{path}.'/objects'; chmod 0775, $self->{path}.'/objects';
 129         mkdir $self->{path}.'/objects/info'; chmod 0775, $self->{path}.'/objects/info';
 130
 131         # We set up both alternates and http_alternates since we cannot use
 132         # relative path in alternates - that doesn't work recursively.
 133
 134         my $filename = $self->{path}.'/objects/info/alternates';
 135         open X, '>'.$filename or die "alternates failed: $!";
 136         print X "$forkee_path/objects\n";
 137         close X;
 138         chmod 0664, $filename or warn "cannot chmod $filename: $!";
 139
 140         if ($Girocco::Config::httppullurl) {
 141                 $filename = $self->{path}.'/objects/info/http-alternates';
 142                 open X, '>'.$filename or die "http-alternates failed: $!";
 143                 my $upfork = $forkee_name;
 144                 do { print X "$Girocco::Config::httppullurl/$upfork.git/objects\n"; } while ($upfork =~ s#/?.+?$## and $upfork); #
 145                 close X;
 146                 chmod 0664, $filename or warn "cannot chmod $filename: $!";
 147         }
 148
 149         symlink "$forkee_path/refs", $self->{path}.'/refs/forkee';
 150 }
 151
 152 sub _ctags_setup {
 153         my $self = shift;
 154         mkdir $self->{path}.'/ctags'; chmod 01777, $self->{path}.'/ctags';
 155 }
 156
 157 sub _group_add {
 158         my $self = shift;
 159         my ($xtra) = @_;
 160         $xtra .= join(',', @{$self->{users}});
 161         filedb_atomic_append(jailed_file('/etc/group'),
 162                 join(':', $self->{name}, $self->{crypt}, '\i', $xtra));
 163 }
 164
 165 sub _group_update {
 166         my $self = shift;
 167         my $xtra = join(',', @{$self->{users}});
 168         filedb_atomic_edit(jailed_file('/etc/group'),
 169                 sub {
 170                         $_ = $_[0];
 171                         chomp;
 172                         if ($self->{name} eq (split /:/)[0]) {
 173                                 # preserve readonly flag
 174                                 s/::([^:]*)$/:$1/ and $xtra = ":$xtra";
 175                                 return join(':', $self->{name}, $self->{crypt}, $self->{gid}, $xtra)."\n";
 176                         } else {
 177                                 return "$_\n";
 178                         }
 179                 }
 180         );
 181 }
 182
 183 sub _group_remove {
 184         my $self = shift;
 185         filedb_atomic_edit(jailed_file('/etc/group'),
 186                 sub {
 187                         $self->{name} ne (split /:/)[0] and return $_;
 188                 }
 189         );
 190 }
 191
 192 sub _hook_path {
 193         my $self = shift;
 194         my ($name) = @_;
 195         $self->{path}.'/hooks/'.$name;
 196 }
 197
 198 sub _hook_install {
 199         my $self = shift;
 200         my ($name) = @_;
 201         open SRC, "$Girocco::Config::basedir/$name-hook" or die "cannot open hook $name: $!";
 202         open DST, '>'.$self->_hook_path($name) or die "cannot open hook $name for writing: $!";
 203         while (<SRC>) { print DST $_; }
 204         close DST;
 205         close SRC;
 206         chmod 0775, $self->_hook_path($name) or die "cannot chmod hook $name: $!";
 207 }
 208
 209 sub _hooks_install {
 210         my $self = shift;
 211         foreach my $hook ('update') {
 212                 $self->_hook_install($hook);
 213         }
 214 }
 215
 216 # private constructor, do not use
 217 sub _new {
 218         my $class = shift;
 219         my ($name, $base_path, $path) = @_;
 220         valid_name($name) or die "refusing to create project with invalid name ($name)!";
 221         $path ||= "$base_path/$name.git";
 222         my $proj = { name => $name, base_path => $base_path, path => $path };
 223
 224         bless $proj, $class;
 225 }
 226
 227 # public constructor #0
 228 # creates a virtual project not connected to disk image
 229 # you can conjure() it later to disk
 230 sub ghost {
 231         my $class = shift;
 232         my ($name, $mirror) = @_;
 233         my $self = $class->_new($name, $Girocco::Config::reporoot);
 234         $self->{users} = [];
 235         $self->{mirror} = $mirror;
 236         $self;
 237 }
 238
 239 # public constructor #1
 240 sub load {
 241         my $class = shift;
 242         my ($name) = @_;
 243
 244         open F, jailed_file("/etc/group") or die "project load failed: $!";
 245         while (<F>) {
 246                 chomp;
 247                 @_ = split /:+/;
 248                 next unless (shift eq $name);
 249
 250                 my $self = $class->_new($name, $Girocco::Config::reporoot);
 251                 (-d $self->{path}) or die "invalid path (".$self->{path}.") for project ".$self->{name};
 252
 253                 my $ulist;
 254                 ($self->{crypt}, $self->{gid}, $ulist) = @_;
 255                 $ulist ||= '';
 256                 $self->{users} = [split /,/, $ulist];
 257                 $self->{orig_users} = [@{$self->{users}}];
 258                 $self->{mirror} = ! -e $self->_nofetch_path;
 259                 $self->{clone_in_progress} = -e $self->_clonep_path;
 260                 $self->{clone_logged} = -e $self->_clonelog_path;
 261                 $self->{clone_failed} = -e $self->_clonefail_path;
 262                 $self->{ccrypt} = $self->{crypt};
 263
 264                 $self->_properties_load;
 265                 return $self;
 266         }
 267         close F;
 268         undef;
 269 }
 270
 271 # $proj may not be in sane state if this returns false!
 272 sub cgi_fill {
 273         my $self = shift;
 274         my ($gcgi) = @_;
 275         my $cgi = $gcgi->cgi;
 276
 277         my $pwd = $cgi->param('pwd');
 278         if ($pwd ne '' or not $self->{crypt}) {
 279                 $self->{crypt} = scrypt($pwd);
 280         }
 281
 282         if ($cgi->param('pwd2') and $pwd ne $cgi->param('pwd2')) {
 283                 $gcgi->err("Our high-paid security consultants have determined that the admin passwords you have entered do not match each other.");
 284         }
 285
 286         $self->{cpwd} = $cgi->param('cpwd');
 287
 288         $self->{email} = $gcgi->wparam('email');
 289         valid_email($self->{email})
 290                 or $gcgi->err("Your email sure looks weird...?");
 291
 292         $self->{url} = $gcgi->wparam('url');
 293         if ($self->{url}) {
 294                 valid_repo_url($self->{url})
 295                         or $gcgi->err("Invalid URL. Note that only HTTP and Git protocol is supported. If the URL contains funny characters, contact me.");
 296         }
 297
 298         $self->{desc} = $gcgi->wparam('desc');
 299         length($self->{desc}) <= 1024
 300                 or $gcgi->err("<b>Short</b> description length &gt; 1kb!");
 301
 302         $self->{README} = $gcgi->wparam('README');
 303         length($self->{README}) <= 8192
 304                 or $gcgi->err("README length &gt; 8kb!");
 305
 306         $self->{hp} = $gcgi->wparam('hp');
 307         if ($self->{hp}) {
 308                 valid_web_url($self->{hp})
 309                         or $gcgi->err("Invalid homepage URL. Note that only HTTP protocol is supported. If the URL contains funny characters, contact me.");
 310         }
 311
 312         # FIXME: Permit only existing users
 313         $self->{users} = [grep { Girocco::User::valid_name($_) } $cgi->param('user')];
 314
 315         not $gcgi->err_check;
 316 }
 317
 318 sub form_defaults {
 319         my $self = shift;
 320         (
 321                 name => $self->{name},
 322                 email => $self->{email},
 323                 url => $self->{url},
 324                 desc => html_esc($self->{desc}),
 325                 README => html_esc($self->{README}),
 326                 hp => $self->{hp},
 327                 users => $self->{users},
 328         );
 329 }
 330
 331 sub authenticate {
 332         my $self = shift;
 333         my ($gcgi) = @_;
 334
 335         $self->{ccrypt} or die "Can't authenticate against a project with no password";
 336         $self->{cpwd} or $gcgi->err("No password entered.");
 337         unless ($self->{ccrypt} eq crypt($self->{cpwd}, $self->{ccrypt})) {
 338                 $gcgi->err("Your admin password does not match!");
 339                 return 0;
 340         }
 341         return 1;
 342 }
 343
 344 sub _setup {
 345         my $self = shift;
 346         my ($pushers) = @_;
 347
 348         $self->_mkdir_forkees;
 349
 350         mkdir($self->{path}) or die "mkdir $self->{path} failed: $!";
 351         if ($Girocco::Config::owning_group) {
 352                 my $gid = scalar(getgrnam($Girocco::Config::owning_group));
 353                 chown(-1, $gid, $self->{path}) or die "chgrp $gid $self->{path} failed: $!";
 354                 chmod(02775, $self->{path}) or die "chmod 2775 $self->{path} failed: $!";
 355         } else {
 356                 chmod(02777, $self->{path}) or die "chmod 2777 $self->{path} failed: $!";
 357         }
 358         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'init', '--bare', '--shared='.$self->shared_mode()) == 0
 359                 or die "git init $self->{path} failed: $?";
 360         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.denyNonFastforwards', 'false') == 0
 361                 or die "disabling receive.denyNonFastforwards failed: $?";
 362
 363         $self->_properties_save;
 364         $self->_alternates_setup;
 365         $self->_ctags_setup;
 366         $self->_group_add($pushers);
 367         $self->_hooks_install;
 368         $self->perm_initialize;
 369 }
 370
 371 sub premirror {
 372         my $self = shift;
 373
 374         $self->_setup(':');
 375         $self->_clonep(1);
 376 }
 377
 378 sub conjure {
 379         my $self = shift;
 380
 381         $self->_setup;
 382         $self->_nofetch(1);
 383 }
 384
 385 sub clone {
 386         my $self = shift;
 387
 388         unlink ($self->_clonefail_path()); # Ignore EEXIST error
 389
 390         use IO::Socket;
 391         my $sock = IO::Socket::UNIX->new('/tmp/girocco.cloned') or die "cannot connect to girocco.cloned: $!";
 392         $sock->print($self->{name}.".git\n");
 393         # Just ignore reply, we are going to succeed anyway and the I/O
 394         # would apparently get quite hairy.
 395         $sock->flush();
 396         sleep 2; # *cough*
 397         $sock->close();
 398 }
 399
 400 sub update {
 401         my $self = shift;
 402
 403         $self->_properties_save;
 404         $self->_group_update;
 405
 406         my @users_add = grep { $a = $_; not scalar grep { $a eq $_ } $self->{orig_users} } $self->{users};
 407         my @users_del = grep { $a = $_; not scalar grep { $a eq $_ } $self->{users} } $self->{orig_users};
 408         $self->perm_user_add($_, Girocco::User::resolve_uid($_)) foreach (@users_add);
 409         $self->perm_user_del($_, Girocco::User::resolve_uid($_)) foreach (@users_del);
 410 }
 411
 412 sub update_password {
 413         my $self = shift;
 414         my ($pwd) = @_;
 415
 416         $self->{crypt} = scrypt($pwd);
 417         $self->_group_update;
 418 }
 419
 420 # You can explicitly do this just on a ghost() repository too.
 421 sub delete {
 422         my $self = shift;
 423
 424         if (-d $self->{path}) {
 425                 system('rm', '-rf', $self->{path}) == 0
 426                         or die "rm -rf $self->{path} failed: $?";
 427         }
 428         $self->_group_remove;
 429 }
 430
 431 sub has_forks {
 432         my $self = shift;
 433
 434         return glob($Girocco::Config::reporoot.'/'.$self->{name}.'/*');
 435 }
 436
 437
 438 ### static methods
 439
 440 sub get_forkee_name {
 441         $_ = $_[0];
 442         (m#^(.*)/.*?$#)[0]; #
 443 }
 444 sub get_forkee_path {
 445         my $forkee = $Girocco::Config::reporoot.'/'.get_forkee_name($_[0]).'.git';
 446         -d $forkee ? $forkee : '';
 447 }
 448
 449 sub valid_name {
 450         $_ = $_[0];
 451         (not m#/# or -d get_forkee_path($_)) # will also catch ^/
 452                 and (not m#\./#)
 453                 and (not m#/$#)
 454                 and m#^[a-zA-Z0-9+./_-]+$#;
 455 }
 456
 457 sub does_exist {
 458         my ($name) = @_;
 459         valid_name($name) or die "tried to query for project with invalid name $name!";
 460         available($name);
 461 }
 462 sub available {
 463         my ($name) = @_;
 464         valid_name($name) or die "tried to query for project with invalid name $name!";
 465         (-d $Girocco::Config::reporoot."/$name.git");
 466 }
 467
 468
 469 1;