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 0775, $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, $mirror ? "$Girocco::Config::mqueuedir/to-clone" : $Girocco::Config::reporoot,
 208                                 $mirror ? "$Girocco::Config::mqueuedir/to-clone/$name" : $Girocco::Config::reporoot."/$name.git");
 209         $self->{users} = [];
 210         $self->{mirror} = $mirror;
 211         $self;
 212 }
 213
 214 # public constructor #1
 215 sub load {
 216         my $class = shift;
 217         my ($name) = @_;
 218
 219         open F, jailed_file("/etc/group") or die "project load failed: $!";
 220         while (<F>) {
 221                 chomp;
 222                 @_ = split /:+/;
 223                 next unless (shift eq $name);
 224
 225                 my $self = $class->_new($name, $Girocco::Config::reporoot);
 226                 (-d $self->{path}) or die "invalid path (".$self->{path}.") for project ".$self->{name};
 227
 228                 my $ulist;
 229                 ($self->{crypt}, $self->{gid}, $ulist) = @_;
 230                 $ulist ||= '';
 231                 $self->{users} = [split /,/, $ulist];
 232                 $self->{orig_users} = [@{$self->{users}}];
 233                 $self->{mirror} = ! -e $self->_nofetch_path;
 234                 $self->{ccrypt} = $self->{crypt};
 235
 236                 $self->_properties_load;
 237                 return $self;
 238         }
 239         close F;
 240         undef;
 241 }
 242
 243 # $proj may not be in sane state if this returns false!
 244 sub cgi_fill {
 245         my $self = shift;
 246         my ($gcgi) = @_;
 247         my $cgi = $gcgi->cgi;
 248
 249         my $pwd = $cgi->param('pwd');
 250         if ($pwd ne '' or not $self->{crypt}) {
 251                 $self->{crypt} = scrypt($pwd);
 252         }
 253
 254         if ($cgi->param('pwd2') and $pwd ne $cgi->param('pwd2')) {
 255                 $gcgi->err("Our high-paid security consultants have determined that the admin passwords you have entered do not match each other.");
 256         }
 257
 258         $self->{cpwd} = $cgi->param('cpwd');
 259
 260         $self->{email} = $gcgi->wparam('email');
 261         valid_email($self->{email})
 262                 or $gcgi->err("Your email sure looks weird...?");
 263
 264         $self->{url} = $gcgi->wparam('url');
 265         if ($self->{url}) {
 266                 valid_repo_url($self->{url})
 267                         or $gcgi->err("Invalid URL. Note that only HTTP and Git protocol is supported. If the URL contains funny characters, contact me.");
 268         }
 269
 270         $self->{desc} = $gcgi->wparam('desc');
 271         length($self->{desc}) <= 1024
 272                 or $gcgi->err("<b>Short</b> description length &gt; 1kb!");
 273
 274         $self->{README} = $gcgi->wparam('README');
 275         length($self->{README}) <= 8192
 276                 or $gcgi->err("README length &gt; 8kb!");
 277
 278         $self->{hp} = $gcgi->wparam('hp');
 279         if ($self->{hp}) {
 280                 valid_web_url($self->{hp})
 281                         or $gcgi->err("Invalid homepage URL. Note that only HTTP protocol is supported. If the URL contains funny characters, contact me.");
 282         }
 283
 284         # FIXME: Permit only existing users
 285         $self->{users} = [grep { Girocco::User::valid_name($_) } $cgi->param('user')];
 286
 287         not $gcgi->err_check;
 288 }
 289
 290 sub form_defaults {
 291         my $self = shift;
 292         (
 293                 name => $self->{name},
 294                 email => $self->{email},
 295                 url => $self->{url},
 296                 desc => html_esc($self->{desc}),
 297                 README => html_esc($self->{README}),
 298                 hp => $self->{hp},
 299                 users => $self->{users},
 300         );
 301 }
 302
 303 sub authenticate {
 304         my $self = shift;
 305         my ($gcgi) = @_;
 306
 307         $self->{ccrypt} or die "Can't authenticate against a project with no password";
 308         $self->{cpwd} or $gcgi->err("No password entered.");
 309         unless ($self->{ccrypt} eq crypt($self->{cpwd}, $self->{ccrypt})) {
 310                 $gcgi->err("Your admin password does not match!");
 311                 return 0;
 312         }
 313         return 1;
 314 }
 315
 316 sub premirror {
 317         my $self = shift;
 318
 319         $self->_mkdir_forkees;
 320         mkdir $self->{path} or die "mkdir $self->{path} failed: $!";
 321         chmod 0775, $self->{path} or die "chmod $self->{path} failed: $!";
 322         $self->_properties_save;
 323         $self->_alternates_setup;
 324         $self->_ctags_setup;
 325         $self->_group_add(':');
 326 }
 327
 328 sub conjure {
 329         my $self = shift;
 330
 331         $self->_mkdir_forkees;
 332
 333         mkdir($self->{path}) or die "mkdir $self->{path} failed: $!";
 334         my $gid = scalar(getgrnam($Girocco::Config::owning_group));
 335         chown(-1, $gid, $self->{path}) or die "chgrp $gid $self->{path} failed: $!";
 336         chmod(2775, $self->{path}) or die "chmod 2775 $self->{path} failed: $!";
 337         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'init', '--bare', '--shared='.$self->shared_mode()) == 0
 338                 or die "git init $self->{path} failed: $?";
 339         system($Girocco::Config::git_bin, '--git-dir='.$self->{path}, 'config', 'receive.denyNonFastforwards', 'false') == 0
 340                 or die "disabling receive.denyNonFastforwards failed: $?";
 341
 342         $self->_nofetch(1);
 343         $self->_properties_save;
 344         $self->_alternates_setup;
 345         $self->_ctags_setup;
 346         $self->_group_add;
 347         $self->_hooks_install;
 348         $self->perm_initialize;
 349 }
 350
 351 sub update {
 352         my $self = shift;
 353
 354         $self->_properties_save;
 355         $self->_group_update;
 356
 357         my @users_add = grep { $a = $_; not scalar grep { $a eq $_ } $self->{orig_users} } $self->{users};
 358         my @users_del = grep { $a = $_; not scalar grep { $a eq $_ } $self->{users} } $self->{orig_users};
 359         $self->perm_user_add($_, Girocco::User::resolve_uid($_)) foreach (@users_add);
 360         $self->perm_user_del($_, Girocco::User::resolve_uid($_)) foreach (@users_del);
 361 }
 362
 363 sub update_password {
 364         my $self = shift;
 365         my ($pwd) = @_;
 366
 367         $self->{crypt} = scrypt($pwd);
 368         $self->_group_update;
 369 }
 370
 371 # You can explicitly do this just on a ghost() repository too.
 372 sub delete {
 373         my $self = shift;
 374
 375         if (-d $self->{path}) {
 376                 system('rm', '-r', $self->{path}) == 0
 377                         or die "rm -r $self->{path} failed: $?";
 378         }
 379         $self->_group_remove;
 380 }
 381
 382 sub has_forks {
 383         my $self = shift;
 384
 385         return glob($Girocco::Config::reporoot.'/'.$self->{name}.'/*');
 386 }
 387
 388
 389 ### static methods
 390
 391 sub get_forkee_name {
 392         $_ = $_[0];
 393         (m#^(.*)/.*?$#)[0]; #
 394 }
 395 sub get_forkee_path {
 396         my $forkee = $Girocco::Config::reporoot.'/'.get_forkee_name($_[0]).'.git';
 397         -d $forkee ? $forkee : '';
 398 }
 399
 400 sub valid_name {
 401         $_ = $_[0];
 402         (not m#/# or -d get_forkee_path($_)) # will also catch ^/
 403                 and (not m#\./#)
 404                 and (not m#/$#)
 405                 and m#^[a-zA-Z0-9+./_-]+$#;
 406 }
 407
 408 sub does_exist {
 409         my ($name) = @_;
 410         valid_name($name) or die "tried to query for project with invalid name $name!";
 411         (available($name)
 412                 or ($Girocco::Config::mqueuedir
 413                         and (-d $Girocco::Config::mqueuedir."/cloning/$name"
 414                         or -d $Girocco::Config::mqueuedir."/to-clone/$name")));
 415 }
 416 sub available {
 417         my ($name) = @_;
 418         valid_name($name) or die "tried to query for project with invalid name $name!";
 419         (-d $Girocco::Config::reporoot."/$name.git");
 420 }
 421
 422
 423 1;