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