IkiWiki/CGI.pm

   1 #!/usr/bin/perl
   2
   3 use warnings;
   4 use strict;
   5 use IkiWiki;
   6 use IkiWiki::UserInfo;
   7 use open qw{:utf8 :std};
   8 use Encode;
   9 use CGI;
  10 $CGI::DISABLE_UPLOADS=1;
  11
  12 package IkiWiki;
  13
  14 sub printheader ($) { #{{{
  15         my $session=shift;
  16
  17         if ($config{sslcookie}) {
  18                 print $session->header(-charset => 'utf-8',
  19                         -cookie => $session->cookie(-secure => 1));
  20         } else {
  21                 print $session->header(-charset => 'utf-8');
  22         }
  23
  24 } #}}}
  25
  26 sub showform ($$$$;@) { #{{{
  27         my $form=shift;
  28         my $buttons=shift;
  29         my $session=shift;
  30         my $cgi=shift;
  31
  32         if (exists $hooks{formbuilder}) {
  33                 run_hooks(formbuilder => sub {
  34                         shift->(form => $form, cgi => $cgi, session => $session,
  35                                 buttons => $buttons);
  36                 });
  37         }
  38
  39         printheader($session);
  40         print misctemplate($form->title, $form->render(submit => $buttons), @_);
  41 }
  42
  43 sub redirect ($$) { #{{{
  44         my $q=shift;
  45         my $url=shift;
  46         if (! $config{w3mmode}) {
  47                 print $q->redirect($url);
  48         }
  49         else {
  50                 print "Content-type: text/plain\n";
  51                 print "W3m-control: GOTO $url\n\n";
  52         }
  53 } #}}}
  54
  55 sub check_canedit ($$$;$) { #{{{
  56         my $page=shift;
  57         my $q=shift;
  58         my $session=shift;
  59         my $nonfatal=shift;
  60
  61         my $canedit;
  62         run_hooks(canedit => sub {
  63                 return if defined $canedit;
  64                 my $ret=shift->($page, $q, $session);
  65                 if (defined $ret) {
  66                         if ($ret eq "") {
  67                                 $canedit=1;
  68                         }
  69                         elsif (ref $ret eq 'CODE') {
  70                                 $ret->() unless $nonfatal;
  71                                 $canedit=0;
  72                         }
  73                         elsif (defined $ret) {
  74                                 error($ret) unless $nonfatal;
  75                                 $canedit=0;
  76                         }
  77                 }
  78         });
  79         return $canedit;
  80 } #}}}
  81
  82 sub decode_cgi_utf8 ($) { #{{{
  83         # decode_form_utf8 method is needed for 5.10
  84         if ($] < 5.01) {
  85                 my $cgi = shift;
  86                 foreach my $f ($cgi->param) {
  87                         $cgi->param($f, map { decode_utf8 $_ } $cgi->param($f));
  88                 }
  89         }
  90 } #}}}
  91
  92 sub decode_form_utf8 ($) { #{{{
  93         if ($] >= 5.01) {
  94                 my $form = shift;
  95                 foreach my $f ($form->field) {
  96                         $form->field(name  => $f,
  97                                      value => decode_utf8($form->field($f)),
  98                                      force => 1,
  99                         );
 100                 }
 101         }
 102 } #}}}
 103
 104 # Check if the user is signed in. If not, redirect to the signin form and
 105 # save their place to return to later.
 106 sub needsignin ($$) { #{{{
 107         my $q=shift;
 108         my $session=shift;
 109
 110         if (! defined $session->param("name") ||
 111             ! userinfo_get($session->param("name"), "regdate")) {
 112                 $session->param(postsignin => $ENV{QUERY_STRING});
 113                 cgi_signin($q, $session);
 114                 cgi_savesession($session);
 115                 exit;
 116         }
 117 } #}}}
 118
 119 sub cgi_signin ($$) { #{{{
 120         my $q=shift;
 121         my $session=shift;
 122
 123         decode_cgi_utf8($q);
 124         eval q{use CGI::FormBuilder};
 125         error($@) if $@;
 126         my $form = CGI::FormBuilder->new(
 127                 title => "signin",
 128                 name => "signin",
 129                 charset => "utf-8",
 130                 method => 'POST',
 131                 required => 'NONE',
 132                 javascript => 0,
 133                 params => $q,
 134                 action => $config{cgiurl},
 135                 header => 0,
 136                 template => {type => 'div'},
 137                 stylesheet => baseurl()."style.css",
 138         );
 139         my $buttons=["Login"];
 140
 141         if ($q->param("do") ne "signin" && !$form->submitted) {
 142                 $form->text(gettext("You need to log in first."));
 143         }
 144         $form->field(name => "do", type => "hidden", value => "signin",
 145                 force => 1);
 146
 147         decode_form_utf8($form);
 148         run_hooks(formbuilder_setup => sub {
 149                 shift->(form => $form, cgi => $q, session => $session,
 150                         buttons => $buttons);
 151         });
 152         decode_form_utf8($form);
 153
 154         if ($form->submitted) {
 155                 $form->validate;
 156         }
 157
 158         showform($form, $buttons, $session, $q);
 159 } #}}}
 160
 161 sub cgi_postsignin ($$) { #{{{
 162         my $q=shift;
 163         my $session=shift;
 164
 165         # Continue with whatever was being done before the signin process.
 166         if (defined $session->param("postsignin")) {
 167                 my $postsignin=CGI->new($session->param("postsignin"));
 168                 $session->clear("postsignin");
 169                 cgi($postsignin, $session);
 170                 cgi_savesession($session);
 171                 exit;
 172         }
 173         else {
 174                 error(gettext("login failed, perhaps you need to turn on cookies?"));
 175         }
 176 } #}}}
 177
 178 sub cgi_prefs ($$) { #{{{
 179         my $q=shift;
 180         my $session=shift;
 181
 182         needsignin($q, $session);
 183         decode_cgi_utf8($q);
 184
 185         # The session id is stored on the form and checked to
 186         # guard against CSRF.
 187         my $sid=$q->param('sid');
 188         if (! defined $sid) {
 189                 $q->delete_all;
 190         }
 191         elsif ($sid ne $session->id) {
 192                 error(gettext("Your login session has expired."));
 193         }
 194
 195         eval q{use CGI::FormBuilder};
 196         error($@) if $@;
 197         my $form = CGI::FormBuilder->new(
 198                 title => "preferences",
 199                 name => "preferences",
 200                 header => 0,
 201                 charset => "utf-8",
 202                 method => 'POST',
 203                 validate => {
 204                         email => 'EMAIL',
 205                 },
 206                 required => 'NONE',
 207                 javascript => 0,
 208                 params => $q,
 209                 action => $config{cgiurl},
 210                 template => {type => 'div'},
 211                 stylesheet => baseurl()."style.css",
 212                 fieldsets => [
 213                         [login => gettext("Login")],
 214                         [preferences => gettext("Preferences")],
 215                         [admin => gettext("Admin")]
 216                 ],
 217         );
 218         my $buttons=["Save Preferences", "Logout", "Cancel"];
 219
 220         decode_form_utf8($form);
 221         run_hooks(formbuilder_setup => sub {
 222                 shift->(form => $form, cgi => $q, session => $session,
 223                         buttons => $buttons);
 224         });
 225         decode_form_utf8($form);
 226
 227         $form->field(name => "do", type => "hidden", value => "prefs",
 228                 force => 1);
 229         $form->field(name => "sid", type => "hidden", value => $session->id,
 230                 force => 1);
 231         $form->field(name => "email", size => 50, fieldset => "preferences");
 232         $form->field(name => "banned_users", size => 50,
 233                 fieldset => "admin");
 234
 235         my $user_name=$session->param("name");
 236         if (! is_admin($user_name)) {
 237                 $form->field(name => "banned_users", type => "hidden");
 238         }
 239
 240         if (! $form->submitted) {
 241                 $form->field(name => "email", force => 1,
 242                         value => userinfo_get($user_name, "email"));
 243                 if (is_admin($user_name)) {
 244                         $form->field(name => "banned_users", force => 1,
 245                                 value => join(" ", get_banned_users()));
 246                 }
 247         }
 248
 249         if ($form->submitted eq 'Logout') {
 250                 $session->delete();
 251                 redirect($q, $config{url});
 252                 return;
 253         }
 254         elsif ($form->submitted eq 'Cancel') {
 255                 redirect($q, $config{url});
 256                 return;
 257         }
 258         elsif ($form->submitted eq 'Save Preferences' && $form->validate) {
 259                 if (defined $form->field('email')) {
 260                         userinfo_set($user_name, 'email', $form->field('email')) ||
 261                                 error("failed to set email");
 262                 }
 263                 if (is_admin($user_name)) {
 264                         set_banned_users(grep { ! is_admin($_) }
 265                                         split(' ',
 266                                                 $form->field("banned_users"))) ||
 267                                 error("failed saving changes");
 268                 }
 269                 $form->text(gettext("Preferences saved."));
 270         }
 271
 272         showform($form, $buttons, $session, $q);
 273 } #}}}
 274
 275 sub cgi_editpage ($$) { #{{{
 276         my $q=shift;
 277         my $session=shift;
 278
 279         decode_cgi_utf8($q);
 280
 281         my @fields=qw(do rcsinfo subpage from page type editcontent comments);
 282         my @buttons=("Save Page", "Preview", "Cancel");
 283         eval q{use CGI::FormBuilder};
 284         error($@) if $@;
 285         my $form = CGI::FormBuilder->new(
 286                 fields => \@fields,
 287                 charset => "utf-8",
 288                 method => 'POST',
 289                 required => [qw{editcontent}],
 290                 javascript => 0,
 291                 params => $q,
 292                 action => $config{cgiurl},
 293                 header => 0,
 294                 table => 0,
 295                 template => scalar template_params("editpage.tmpl"),
 296                 wikiname => $config{wikiname},
 297         );
 298
 299         decode_form_utf8($form);
 300         run_hooks(formbuilder_setup => sub {
 301                 shift->(form => $form, cgi => $q, session => $session,
 302                         buttons => \@buttons);
 303         });
 304         decode_form_utf8($form);
 305
 306         # This untaint is safe because titlepage removes any problematic
 307         # characters.
 308         my ($page)=$form->field('page');
 309         $page=titlepage(possibly_foolish_untaint($page));
 310         if (! defined $page || ! length $page ||
 311             file_pruned($page, $config{srcdir}) || $page=~/^\//) {
 312                 error("bad page name");
 313         }
 314
 315         my $baseurl=$config{url}."/".htmlpage($page);
 316
 317         my $from;
 318         if (defined $form->field('from')) {
 319                 ($from)=$form->field('from')=~/$config{wiki_file_regexp}/;
 320         }
 321
 322         my $file;
 323         my $type;
 324         if (exists $pagesources{$page} && $form->field("do") ne "create") {
 325                 $file=$pagesources{$page};
 326                 $type=pagetype($file);
 327                 if (! defined $type || $type=~/^_/) {
 328                         error(sprintf(gettext("%s is not an editable page"), $page));
 329                 }
 330                 if (! $form->submitted) {
 331                         $form->field(name => "rcsinfo",
 332                                 value => rcs_prepedit($file), force => 1);
 333                 }
 334                 $form->field(name => "editcontent", validate => '/.*/');
 335         }
 336         else {
 337                 $type=$form->param('type');
 338                 if (defined $type && length $type && $hooks{htmlize}{$type}) {
 339                         $type=possibly_foolish_untaint($type);
 340                 }
 341                 elsif (defined $from && exists $pagesources{$from}) {
 342                         # favor the type of linking page
 343                         $type=pagetype($pagesources{$from});
 344                 }
 345                 $type=$config{default_pageext} unless defined $type;
 346                 $file=$page.".".$type;
 347                 if (! $form->submitted) {
 348                         $form->field(name => "rcsinfo", value => "", force => 1);
 349                 }
 350                 $form->field(name => "editcontent", validate => '/.+/');
 351         }
 352
 353         $form->field(name => "do", type => 'hidden');
 354         $form->field(name => "sid", type => "hidden", value => $session->id,
 355                 force => 1);
 356         $form->field(name => "from", type => 'hidden');
 357         $form->field(name => "rcsinfo", type => 'hidden');
 358         $form->field(name => "subpage", type => 'hidden');
 359         $form->field(name => "page", value => pagetitle($page, 1), force => 1);
 360         $form->field(name => "type", value => $type, force => 1);
 361         $form->field(name => "comments", type => "text", size => 80);
 362         $form->field(name => "editcontent", type => "textarea", rows => 20,
 363                 cols => 80);
 364         $form->tmpl_param("can_commit", $config{rcs});
 365         $form->tmpl_param("indexlink", indexlink());
 366         $form->tmpl_param("helponformattinglink",
 367                 htmllink($page, $page, "ikiwiki/formatting",
 368                         noimageinline => 1,
 369                         linktext => "FormattingHelp"));
 370
 371         if ($form->submitted eq "Cancel") {
 372                 if ($form->field("do") eq "create" && defined $from) {
 373                         redirect($q, "$config{url}/".htmlpage($from));
 374                 }
 375                 elsif ($form->field("do") eq "create") {
 376                         redirect($q, $config{url});
 377                 }
 378                 else {
 379                         redirect($q, "$config{url}/".htmlpage($page));
 380                 }
 381                 return;
 382         }
 383         elsif ($form->submitted eq "Preview") {
 384                 my $new=not exists $pagesources{$page};
 385                 if ($new) {
 386                         # temporarily record its type
 387                         $pagesources{$page}=$page.".".$type;
 388                 }
 389
 390                 my $content=$form->field('editcontent');
 391
 392                 run_hooks(editcontent => sub {
 393                         $content=shift->(
 394                                 content => $content,
 395                                 page => $page,
 396                                 cgi => $q,
 397                                 session => $session,
 398                         );
 399                 });
 400                 my $preview=htmlize($page, $page, $type,
 401                         linkify($page, $page,
 402                         preprocess($page, $page,
 403                         filter($page, $page, $content), 0, 1)));
 404                 run_hooks(format => sub {
 405                         $preview=shift->(
 406                                 page => $page,
 407                                 content => $preview,
 408                         );
 409                 });
 410                 $form->tmpl_param("page_preview", $preview);
 411
 412                 if ($new) {
 413                         delete $pagesources{$page};
 414                 }
 415                 # previewing may have created files on disk
 416                 saveindex();
 417         }
 418         elsif ($form->submitted eq "Save Page") {
 419                 $form->tmpl_param("page_preview", "");
 420         }
 421         $form->tmpl_param("page_conflict", "");
 422
 423         if ($form->submitted ne "Save Page" || ! $form->validate) {
 424                 if ($form->field("do") eq "create") {
 425                         my @page_locs;
 426                         my $best_loc;
 427                         if (! defined $from || ! length $from ||
 428                             $from ne $form->field('from') ||
 429                             file_pruned($from, $config{srcdir}) ||
 430                             $from=~/^\// ||
 431                             $form->submitted eq "Preview") {
 432                                 @page_locs=$best_loc=$page;
 433                         }
 434                         else {
 435                                 my $dir=$from."/";
 436                                 $dir=~s![^/]+/+$!!;
 437
 438                                 if ((defined $form->field('subpage') && length $form->field('subpage')) ||
 439                                     $page eq gettext('discussion')) {
 440                                         $best_loc="$from/$page";
 441                                 }
 442                                 else {
 443                                         $best_loc=$dir.$page;
 444                                 }
 445
 446                                 push @page_locs, $dir.$page;
 447                                 push @page_locs, "$from/$page";
 448                                 while (length $dir) {
 449                                         $dir=~s![^/]+/+$!!;
 450                                         push @page_locs, $dir.$page;
 451                                 }
 452
 453                                 push @page_locs, "$config{userdir}/$page"
 454                                         if length $config{userdir};
 455                         }
 456
 457                         @page_locs = grep {
 458                                 ! exists $pagecase{lc $_}
 459                         } @page_locs;
 460                         if (! @page_locs) {
 461                                 # hmm, someone else made the page in the
 462                                 # meantime?
 463                                 if ($form->submitted eq "Preview") {
 464                                         # let them go ahead with the edit
 465                                         # and resolve the conflict at save
 466                                         # time
 467                                         @page_locs=$page;
 468                                 }
 469                                 else {
 470                                         redirect($q, "$config{url}/".htmlpage($page));
 471                                         return;
 472                                 }
 473                         }
 474
 475                         my @editable_locs = grep {
 476                                 check_canedit($_, $q, $session, 1)
 477                         } @page_locs;
 478                         if (! @editable_locs) {
 479                                 # let it throw an error this time
 480                                 map { check_canedit($_, $q, $session) } @page_locs;
 481                         }
 482
 483                         my @page_types;
 484                         if (exists $hooks{htmlize}) {
 485                                 @page_types=grep { !/^_/ }
 486                                         keys %{$hooks{htmlize}};
 487                         }
 488
 489                         $form->tmpl_param("page_select", 1);
 490                         $form->field(name => "page", type => 'select',
 491                                 options => [ map { pagetitle($_, 1) } @editable_locs ],
 492                                 value => pagetitle($best_loc, 1));
 493                         $form->field(name => "type", type => 'select',
 494                                 options => \@page_types);
 495                         $form->title(sprintf(gettext("creating %s"), pagetitle($page)));
 496
 497                 }
 498                 elsif ($form->field("do") eq "edit") {
 499                         check_canedit($page, $q, $session);
 500                         if (! defined $form->field('editcontent') ||
 501                             ! length $form->field('editcontent')) {
 502                                 my $content="";
 503                                 if (exists $pagesources{$page}) {
 504                                         $content=readfile(srcfile($pagesources{$page}));
 505                                         $content=~s/\n/\r\n/g;
 506                                 }
 507                                 $form->field(name => "editcontent", value => $content,
 508                                         force => 1);
 509                         }
 510                         $form->tmpl_param("page_select", 0);
 511                         $form->field(name => "page", type => 'hidden');
 512                         $form->field(name => "type", type => 'hidden');
 513                         $form->title(sprintf(gettext("editing %s"), pagetitle($page)));
 514                 }
 515
 516                 showform($form, \@buttons, $session, $q, forcebaseurl => $baseurl);
 517         }
 518         else {
 519                 # save page
 520                 check_canedit($page, $q, $session);
 521
 522                 # The session id is stored on the form and checked to
 523                 # guard against CSRF. But only if the user is logged in,
 524                 # as anonok can allow anonymous edits.
 525                 if (defined $session->param("name")) {
 526                         my $sid=$q->param('sid');
 527                         if (! defined $sid || $sid ne $session->id) {
 528                                 error(gettext("Your login session has expired."));
 529                         }
 530                 }
 531
 532                 my $exists=-e "$config{srcdir}/$file";
 533
 534                 if ($form->field("do") ne "create" && ! $exists &&
 535                     ! defined srcfile($file, 1)) {
 536                         $form->tmpl_param("page_gone", 1);
 537                         $form->field(name => "do", value => "create", force => 1);
 538                         $form->tmpl_param("page_select", 0);
 539                         $form->field(name => "page", type => 'hidden');
 540                         $form->field(name => "type", type => 'hidden');
 541                         $form->title(sprintf(gettext("editing %s"), $page));
 542                         showform($form, \@buttons, $session, $q, forcebaseurl => $baseurl);
 543                         return;
 544                 }
 545                 elsif ($form->field("do") eq "create" && $exists) {
 546                         $form->tmpl_param("creation_conflict", 1);
 547                         $form->field(name => "do", value => "edit", force => 1);
 548                         $form->tmpl_param("page_select", 0);
 549                         $form->field(name => "page", type => 'hidden');
 550                         $form->field(name => "type", type => 'hidden');
 551                         $form->title(sprintf(gettext("editing %s"), $page));
 552                         $form->field("editcontent",
 553                                 value => readfile("$config{srcdir}/$file").
 554                                          "\n\n\n".$form->field("editcontent"),
 555                                 force => 1);
 556                         showform($form, \@buttons, $session, $q, forcebaseurl => $baseurl);
 557                         return;
 558                 }
 559
 560                 my $content=$form->field('editcontent');
 561                 run_hooks(editcontent => sub {
 562                         $content=shift->(
 563                                 content => $content,
 564                                 page => $page,
 565                                 cgi => $q,
 566                                 session => $session,
 567                         );
 568                 });
 569                 $content=~s/\r\n/\n/g;
 570                 $content=~s/\r/\n/g;
 571                 $content.="\n" if $content !~ /\n$/;
 572
 573                 $config{cgi}=0; # avoid cgi error message
 574                 eval { writefile($file, $config{srcdir}, $content) };
 575                 $config{cgi}=1;
 576                 if ($@) {
 577                         $form->field(name => "rcsinfo", value => rcs_prepedit($file),
 578                                 force => 1);
 579                         $form->tmpl_param("failed_save", 1);
 580                         $form->tmpl_param("error_message", $@);
 581                         $form->field("editcontent", value => $content, force => 1);
 582                         $form->tmpl_param("page_select", 0);
 583                         $form->field(name => "page", type => 'hidden');
 584                         $form->field(name => "type", type => 'hidden');
 585                         $form->title(sprintf(gettext("editing %s"), $page));
 586                         showform($form, \@buttons, $session, $q,
 587                                 forcebaseurl => $baseurl);
 588                         return;
 589                 }
 590
 591                 my $conflict;
 592                 if ($config{rcs}) {
 593                         my $message="";
 594                         if (defined $form->field('comments') &&
 595                             length $form->field('comments')) {
 596                                 $message=$form->field('comments');
 597                         }
 598
 599                         if (! $exists) {
 600                                 rcs_add($file);
 601                         }
 602
 603                         # Prevent deadlock with post-commit hook by
 604                         # signaling to it that it should not try to
 605                         # do anything.
 606                         disable_commit_hook();
 607                         $conflict=rcs_commit($file, $message,
 608                                 $form->field("rcsinfo"),
 609                                 $session->param("name"), $ENV{REMOTE_ADDR});
 610                         enable_commit_hook();
 611                         rcs_update();
 612                 }
 613
 614                 # Refresh even if there was a conflict, since other changes
 615                 # may have been committed while the post-commit hook was
 616                 # disabled.
 617                 require IkiWiki::Render;
 618                 refresh();
 619                 saveindex();
 620
 621                 if (defined $conflict) {
 622                         $form->field(name => "rcsinfo", value => rcs_prepedit($file),
 623                                 force => 1);
 624                         $form->tmpl_param("page_conflict", 1);
 625                         $form->field("editcontent", value => $conflict, force => 1);
 626                         $form->field("do", "edit", force => 1);
 627                         $form->tmpl_param("page_select", 0);
 628                         $form->field(name => "page", type => 'hidden');
 629                         $form->field(name => "type", type => 'hidden');
 630                         $form->title(sprintf(gettext("editing %s"), $page));
 631                         showform($form, \@buttons, $session, $q,
 632                                 forcebaseurl => $baseurl);
 633                         return;
 634                 }
 635                 else {
 636                         # The trailing question mark tries to avoid broken
 637                         # caches and get the most recent version of the page.
 638                         redirect($q, "$config{url}/".htmlpage($page)."?updated");
 639                 }
 640         }
 641 } #}}}
 642
 643 sub cgi_getsession ($) { #{{{
 644         my $q=shift;
 645
 646         eval q{use CGI::Session};
 647         error($@) if $@;
 648         CGI::Session->name("ikiwiki_session_".encode_utf8($config{wikiname}));
 649
 650         my $oldmask=umask(077);
 651         my $session = CGI::Session->new("driver:DB_File", $q,
 652                 { FileName => "$config{wikistatedir}/sessions.db" });
 653         umask($oldmask);
 654
 655         return $session;
 656 } #}}}
 657
 658 sub cgi_savesession ($) { #{{{
 659         my $session=shift;
 660
 661         # Force session flush with safe umask.
 662         my $oldmask=umask(077);
 663         $session->flush;
 664         umask($oldmask);
 665 } #}}}
 666
 667 sub cgi (;$$) { #{{{
 668         my $q=shift;
 669         my $session=shift;
 670
 671         if (! $q) {
 672                 binmode(STDIN);
 673                 $q=CGI->new;
 674                 binmode(STDIN, ":utf8");
 675
 676                 run_hooks(cgi => sub { shift->($q) });
 677         }
 678
 679         my $do=$q->param('do');
 680         if (! defined $do || ! length $do) {
 681                 my $error = $q->cgi_error;
 682                 if ($error) {
 683                         error("Request not processed: $error");
 684                 }
 685                 else {
 686                         error("\"do\" parameter missing");
 687                 }
 688         }
 689
 690         # Need to lock the wiki before getting a session.
 691         lockwiki();
 692         loadindex();
 693
 694         if (! $session) {
 695                 $session=cgi_getsession($q);
 696         }
 697
 698         # Auth hooks can sign a user in.
 699         if ($do ne 'signin' && ! defined $session->param("name")) {
 700                 run_hooks(auth => sub {
 701                         shift->($q, $session)
 702                 });
 703                 if (defined $session->param("name")) {
 704                         # Make sure whatever user was authed is in the
 705                         # userinfo db.
 706                         if (! userinfo_get($session->param("name"), "regdate")) {
 707                                 userinfo_setall($session->param("name"), {
 708                                         email => "",
 709                                         password => "",
 710                                         regdate => time,
 711                                 }) || error("failed adding user");
 712                         }
 713                 }
 714         }
 715
 716         if (defined $session->param("name") &&
 717             userinfo_get($session->param("name"), "banned")) {
 718                 print $q->header(-status => "403 Forbidden");
 719                 $session->delete();
 720                 print gettext("You are banned.");
 721                 cgi_savesession($session);
 722         }
 723
 724         run_hooks(sessioncgi => sub { shift->($q, $session) });
 725
 726         if ($do eq 'signin') {
 727                 cgi_signin($q, $session);
 728                 cgi_savesession($session);
 729         }
 730         elsif ($do eq 'prefs') {
 731                 cgi_prefs($q, $session);
 732         }
 733         elsif ($do eq 'create' || $do eq 'edit') {
 734                 cgi_editpage($q, $session);
 735         }
 736         elsif (defined $session->param("postsignin") || $do eq 'postsignin') {
 737                 cgi_postsignin($q, $session);
 738         }
 739         else {
 740                 error("unknown do parameter");
 741         }
 742 } #}}}
 743
 744 1