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