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 redirect ($$) { #{{{
  25         my $q=shift;
  26         my $url=shift;
  27         if (! $config{w3mmode}) {
  28                 print $q->redirect($url);
  29         }
  30         else {
  31                 print "Content-type: text/plain\n";
  32                 print "W3m-control: GOTO $url\n\n";
  33         }
  34 } #}}}
  35
  36 sub page_locked ($$;$) { #{{{
  37         my $page=shift;
  38         my $session=shift;
  39         my $nonfatal=shift;
  40
  41         my $user=$session->param("name");
  42         return if defined $user && is_admin($user);
  43
  44         foreach my $admin (@{$config{adminuser}}) {
  45                 my $locked_pages=userinfo_get($admin, "locked_pages");
  46                 if (pagespec_match($page, userinfo_get($admin, "locked_pages"))) {
  47                         return 1 if $nonfatal;
  48                         error(htmllink("", "", $page, 1)." is locked by ".
  49                               htmllink("", "", $admin, 1)." and cannot be edited.");
  50                 }
  51         }
  52
  53         return 0;
  54 } #}}}
  55
  56 sub decode_form_utf8 ($) { #{{{
  57         my $form = shift;
  58         foreach my $f ($form->field) {
  59                 next if Encode::is_utf8(scalar $form->field($f));
  60                 $form->field(name  => $f,
  61                              value => decode_utf8($form->field($f)),
  62                              force => 1,
  63                             );
  64         }
  65 } #}}}
  66
  67 sub cgi_recentchanges ($) { #{{{
  68         my $q=shift;
  69
  70         unlockwiki();
  71
  72         # Optimisation: building recentchanges means calculating lots of
  73         # links. Memoizing htmllink speeds it up a lot (can't be memoized
  74         # during page builds as the return values may change, but they
  75         # won't here.)
  76         eval q{use Memoize};
  77         memoize("htmllink");
  78
  79         eval q{use Time::Duration};
  80         eval q{use CGI 'escapeHTML'};
  81
  82         my $changelog=[rcs_recentchanges(100)];
  83         foreach my $change (@$changelog) {
  84                 $change->{when} = concise(ago($change->{when}));
  85                 $change->{user} = htmllink("", "", escapeHTML($change->{user}), 1);
  86
  87                 my $is_excess = exists $change->{pages}[10]; # limit pages to first 10
  88                 delete @{$change->{pages}}[10 .. @{$change->{pages}}] if $is_excess;
  89                 $change->{pages} = [
  90                         map {
  91                                 $_->{link} = htmllink("", "", $_->{page}, 1);
  92                                 $_;
  93                         } @{$change->{pages}}
  94                 ];
  95                 push @{$change->{pages}}, { link => '...' } if $is_excess;
  96         }
  97
  98         my $template=template("recentchanges.tmpl");
  99         $template->param(
 100                 title => "RecentChanges",
 101                 indexlink => indexlink(),
 102                 wikiname => $config{wikiname},
 103                 changelog => $changelog,
 104                 baseurl => baseurl(),
 105         );
 106         run_hooks(pagetemplate => sub {
 107                 shift->(page => "", destpage => "", template => $template);
 108         });
 109         print $q->header(-charset => 'utf-8'), $template->output;
 110 } #}}}
 111
 112 sub cgi_signin ($$) { #{{{
 113         my $q=shift;
 114         my $session=shift;
 115
 116         eval q{use CGI::FormBuilder};
 117         my $form = CGI::FormBuilder->new(
 118                 title => "signin",
 119                 fields => [qw(do title page subpage from name password confirm_password email)],
 120                 header => 1,
 121                 charset => "utf-8",
 122                 method => 'POST',
 123                 validate => {
 124                         confirm_password => {
 125                                 perl => q{eq $form->field("password")},
 126                         },
 127                         email => 'EMAIL',
 128                 },
 129                 required => 'NONE',
 130                 javascript => 0,
 131                 params => $q,
 132                 action => $config{cgiurl},
 133                 header => 0,
 134                 template => (-e "$config{templatedir}/signin.tmpl" ?
 135                              {template_params("signin.tmpl")} : ""),
 136                 stylesheet => baseurl()."style.css",
 137         );
 138
 139         decode_form_utf8($form);
 140
 141         $form->field(name => "name", required => 0);
 142         $form->field(name => "do", type => "hidden");
 143         $form->field(name => "page", type => "hidden");
 144         $form->field(name => "title", type => "hidden");
 145         $form->field(name => "from", type => "hidden");
 146         $form->field(name => "subpage", type => "hidden");
 147         $form->field(name => "password", type => "password", required => 0);
 148         $form->field(name => "confirm_password", type => "password", required => 0);
 149         $form->field(name => "email", required => 0);
 150         if ($q->param("do") ne "signin" && !$form->submitted) {
 151                 $form->text("You need to log in first.");
 152         }
 153
 154         if ($form->submitted) {
 155                 # Set required fields based on how form was submitted.
 156                 my %required=(
 157                         "Login" => [qw(name password)],
 158                         "Register" => [qw(name password confirm_password email)],
 159                         "Mail Password" => [qw(name)],
 160                 );
 161                 foreach my $opt (@{$required{$form->submitted}}) {
 162                         $form->field(name => $opt, required => 1);
 163                 }
 164
 165                 # Validate password differently depending on how
 166                 # form was submitted.
 167                 if ($form->submitted eq 'Login') {
 168                         $form->field(
 169                                 name => "password",
 170                                 validate => sub {
 171                                         length $form->field("name") &&
 172                                         shift eq userinfo_get($form->field("name"), 'password');
 173                                 },
 174                         );
 175                         $form->field(name => "name", validate => '/^\w+$/');
 176                 }
 177                 else {
 178                         $form->field(name => "password", validate => 'VALUE');
 179                 }
 180                 # And make sure the entered name exists when logging
 181                 # in or sending email, and does not when registering.
 182                 if ($form->submitted eq 'Register') {
 183                         $form->field(
 184                                 name => "name",
 185                                 validate => sub {
 186                                         my $name=shift;
 187                                         length $name &&
 188                                         $name=~/$config{wiki_file_regexp}/ &&
 189                                         ! userinfo_get($name, "regdate");
 190                                 },
 191                         );
 192                 }
 193                 else {
 194                         $form->field(
 195                                 name => "name",
 196                                 validate => sub {
 197                                         my $name=shift;
 198                                         length $name &&
 199                                         userinfo_get($name, "regdate");
 200                                 },
 201                         );
 202                 }
 203         }
 204         else {
 205                 # First time settings.
 206                 $form->field(name => "name", comment => "use FirstnameLastName");
 207                 $form->field(name => "confirm_password", comment => "(only needed");
 208                 $form->field(name => "email",            comment => "for registration)");
 209                 if ($session->param("name")) {
 210                         $form->field(name => "name", value => $session->param("name"));
 211                 }
 212         }
 213
 214         if ($form->submitted && $form->validate) {
 215                 if ($form->submitted eq 'Login') {
 216                         $session->param("name", $form->field("name"));
 217                         if (defined $form->field("do") &&
 218                             $form->field("do") ne 'signin') {
 219                                 redirect($q, cgiurl(
 220                                         do => $form->field("do"),
 221                                         page => $form->field("page"),
 222                                         title => $form->field("title"),
 223                                         subpage => $form->field("subpage"),
 224                                         from => $form->field("from"),
 225                                 ));
 226                         }
 227                         else {
 228                                 redirect($q, $config{url});
 229                         }
 230                 }
 231                 elsif ($form->submitted eq 'Register') {
 232                         my $user_name=$form->field('name');
 233                         if (userinfo_setall($user_name, {
 234                                            'email' => $form->field('email'),
 235                                            'password' => $form->field('password'),
 236                                            'regdate' => time
 237                                          })) {
 238                                 $form->field(name => "confirm_password", type => "hidden");
 239                                 $form->field(name => "email", type => "hidden");
 240                                 $form->text("Registration successful. Now you can Login.");
 241                                 printheader($session);
 242                                 print misctemplate($form->title, $form->render(submit => ["Login"]));
 243                         }
 244                         else {
 245                                 error("Error saving registration.");
 246                         }
 247                 }
 248                 elsif ($form->submitted eq 'Mail Password') {
 249                         my $user_name=$form->field("name");
 250                         my $template=template("passwordmail.tmpl");
 251                         $template->param(
 252                                 user_name => $user_name,
 253                                 user_password => userinfo_get($user_name, "password"),
 254                                 wikiurl => $config{url},
 255                                 wikiname => $config{wikiname},
 256                                 REMOTE_ADDR => $ENV{REMOTE_ADDR},
 257                         );
 258
 259                         eval q{use Mail::Sendmail};
 260                         sendmail(
 261                                 To => userinfo_get($user_name, "email"),
 262                                 From => "$config{wikiname} admin <$config{adminemail}>",
 263                                 Subject => "$config{wikiname} information",
 264                                 Message => $template->output,
 265                         ) or error("Failed to send mail");
 266
 267                         $form->text("Your password has been emailed to you.");
 268                         $form->field(name => "name", required => 0);
 269                         printheader($session);
 270                         print misctemplate($form->title, $form->render(submit => ["Login", "Register", "Mail Password"]));
 271                 }
 272         }
 273         else {
 274                 printheader($session);
 275                 print misctemplate($form->title, $form->render(submit => ["Login", "Register", "Mail Password"]));
 276         }
 277 } #}}}
 278
 279 sub cgi_prefs ($$) { #{{{
 280         my $q=shift;
 281         my $session=shift;
 282
 283         eval q{use CGI::FormBuilder};
 284         my $form = CGI::FormBuilder->new(
 285                 title => "preferences",
 286                 fields => [qw(do name password confirm_password email
 287                               subscriptions locked_pages)],
 288                 header => 0,
 289                 charset => "utf-8",
 290                 method => 'POST',
 291                 validate => {
 292                         confirm_password => {
 293                                 perl => q{eq $form->field("password")},
 294                         },
 295                         email => 'EMAIL',
 296                 },
 297                 required => 'NONE',
 298                 javascript => 0,
 299                 params => $q,
 300                 action => $config{cgiurl},
 301                 template => (-e "$config{templatedir}/prefs.tmpl" ?
 302                              {template_params("prefs.tmpl")} : ""),
 303                 stylesheet => baseurl()."style.css",
 304         );
 305         my @buttons=("Save Preferences", "Logout", "Cancel");
 306
 307         my $user_name=$session->param("name");
 308         $form->field(name => "do", type => "hidden");
 309         $form->field(name => "name", disabled => 1,
 310                 value => $user_name, force => 1);
 311         $form->field(name => "password", type => "password");
 312         $form->field(name => "confirm_password", type => "password");
 313         $form->field(name => "subscriptions", size => 50,
 314                 comment => "(".htmllink("", "", "PageSpec", 1).")");
 315         $form->field(name => "locked_pages", size => 50,
 316                 comment => "(".htmllink("", "", "PageSpec", 1).")");
 317
 318         if (! is_admin($user_name)) {
 319                 $form->field(name => "locked_pages", type => "hidden");
 320         }
 321
 322         if ($config{httpauth}) {
 323                 $form->field(name => "password", type => "hidden");
 324                 $form->field(name => "confirm_password", type => "hidden");
 325         }
 326
 327         if (! $form->submitted) {
 328                 $form->field(name => "email", force => 1,
 329                         value => userinfo_get($user_name, "email"));
 330                 $form->field(name => "subscriptions", force => 1,
 331                         value => userinfo_get($user_name, "subscriptions"));
 332                 $form->field(name => "locked_pages", force => 1,
 333                         value => userinfo_get($user_name, "locked_pages"));
 334         }
 335
 336         decode_form_utf8($form);
 337
 338         if ($form->submitted eq 'Logout') {
 339                 $session->delete();
 340                 redirect($q, $config{url});
 341                 return;
 342         }
 343         elsif ($form->submitted eq 'Cancel') {
 344                 redirect($q, $config{url});
 345                 return;
 346         }
 347         elsif ($form->submitted eq "Save Preferences" && $form->validate) {
 348                 foreach my $field (qw(password email subscriptions locked_pages)) {
 349                         if (length $form->field($field)) {
 350                                 userinfo_set($user_name, $field, $form->field($field)) || error("failed to set $field");
 351                         }
 352                 }
 353                 $form->text("Preferences saved.");
 354         }
 355
 356         printheader($session);
 357         print misctemplate($form->title, $form->render(submit => \@buttons));
 358 } #}}}
 359
 360 sub cgi_editpage ($$) { #{{{
 361         my $q=shift;
 362         my $session=shift;
 363
 364         my @fields=qw(do rcsinfo subpage from page type editcontent comments);
 365         my @buttons=("Save Page", "Preview", "Cancel");
 366
 367         eval q{use CGI::FormBuilder; use CGI::FormBuilder::Template::HTML};
 368         my $renderer=CGI::FormBuilder::Template::HTML->new(
 369                 fields => \@fields,
 370                 template_params("editpage.tmpl"),
 371         );
 372         run_hooks(pagetemplate => sub {
 373                 shift->(page => "", destpage => "", template => $renderer->engine);
 374         });
 375         my $form = CGI::FormBuilder->new(
 376                 fields => \@fields,
 377                 header => 1,
 378                 charset => "utf-8",
 379                 method => 'POST',
 380                 validate => {
 381                         editcontent => '/.+/',
 382                 },
 383                 required => [qw{editcontent}],
 384                 javascript => 0,
 385                 params => $q,
 386                 action => $config{cgiurl},
 387                 table => 0,
 388                 template => $renderer,
 389         );
 390
 391         decode_form_utf8($form);
 392
 393         # This untaint is safe because titlepage removes any problematic
 394         # characters.
 395         my ($page)=$form->field('page');
 396         $page=titlepage(possibly_foolish_untaint($page));
 397         if (! defined $page || ! length $page ||
 398             $page=~/$config{wiki_file_prune_regexp}/ || $page=~/^\//) {
 399                 error("bad page name");
 400         }
 401
 402         my $from;
 403         if (defined $form->field('from')) {
 404                 ($from)=$form->field('from')=~/$config{wiki_file_regexp}/;
 405         }
 406
 407         my $file;
 408         my $type;
 409         if (exists $pagesources{$page}) {
 410                 $file=$pagesources{$page};
 411                 $type=pagetype($file);
 412         }
 413         else {
 414                 $type=$form->param('type');
 415                 if (defined $type && length $type && $hooks{htmlize}{$type}) {
 416                         $type=possibly_foolish_untaint($type);
 417                 }
 418                 elsif (defined $from) {
 419                         # favor the type of linking page
 420                         $type=pagetype($pagesources{$from});
 421                 }
 422                 $type=$config{default_pageext} unless defined $type;
 423                 $file=$page.".".$type;
 424         }
 425
 426         my $newfile=0;
 427         if (! -e "$config{srcdir}/$file") {
 428                 $newfile=1;
 429         }
 430
 431         $form->field(name => "do", type => 'hidden');
 432         $form->field(name => "from", type => 'hidden');
 433         $form->field(name => "rcsinfo", type => 'hidden');
 434         $form->field(name => "subpage", type => 'hidden');
 435         $form->field(name => "page", value => $page, force => 1);
 436         $form->field(name => "type", value => $type, force => 1);
 437         $form->field(name => "comments", type => "text", size => 80);
 438         $form->field(name => "editcontent", type => "textarea", rows => 20,
 439                 cols => 80);
 440         $form->tmpl_param("can_commit", $config{rcs});
 441         $form->tmpl_param("indexlink", indexlink());
 442         $form->tmpl_param("helponformattinglink",
 443                 htmllink("", "", "HelpOnFormatting", 1));
 444         $form->tmpl_param("baseurl", baseurl());
 445         if (! $form->submitted) {
 446                 $form->field(name => "rcsinfo", value => rcs_prepedit($file),
 447                         force => 1);
 448         }
 449
 450         if ($form->submitted eq "Cancel") {
 451                 if ($newfile && defined $from) {
 452                         redirect($q, "$config{url}/".htmlpage($from));
 453                 }
 454                 elsif ($newfile) {
 455                         redirect($q, $config{url});
 456                 }
 457                 else {
 458                         redirect($q, "$config{url}/".htmlpage($page));
 459                 }
 460                 return;
 461         }
 462         elsif ($form->submitted eq "Preview") {
 463                 my $content=$form->field('editcontent');
 464                 my $comments=$form->field('comments');
 465                 $form->field(name => "editcontent",
 466                                 value => $content, force => 1);
 467                 $form->field(name => "comments",
 468                                 value => $comments, force => 1);
 469                 $config{rss}=$config{atom}=0; # avoid preview writing a feed!
 470                 $form->tmpl_param("page_preview",
 471                         htmlize($page, $type,
 472                         linkify($page, "",
 473                         preprocess($page, $page,
 474                         filter($page, $content)))));
 475         }
 476         else {
 477                 $form->tmpl_param("page_preview", "");
 478         }
 479         $form->tmpl_param("page_conflict", "");
 480
 481         if (! $form->submitted || $form->submitted eq "Preview" ||
 482             ! $form->validate) {
 483                 if ($form->field("do") eq "create") {
 484                         my @page_locs;
 485                         my $best_loc;
 486                         if (! defined $from || ! length $from ||
 487                             $from ne $form->field('from') ||
 488                             $from=~/$config{wiki_file_prune_regexp}/ ||
 489                             $from=~/^\// ||
 490                             $form->submitted eq "Preview") {
 491                                 @page_locs=$best_loc=$page;
 492                         }
 493                         else {
 494                                 my $dir=$from."/";
 495                                 $dir=~s![^/]+/+$!!;
 496
 497                                 if ((defined $form->field('subpage') && length $form->field('subpage')) ||
 498                                     $page eq 'discussion') {
 499                                         $best_loc="$from/$page";
 500                                 }
 501                                 else {
 502                                         $best_loc=$dir.$page;
 503                                 }
 504
 505                                 push @page_locs, $dir.$page;
 506                                 push @page_locs, "$from/$page";
 507                                 while (length $dir) {
 508                                         $dir=~s![^/]+/+$!!;
 509                                         push @page_locs, $dir.$page;
 510                                 }
 511                         }
 512
 513                         @page_locs = grep {
 514                                 ! exists $pagecase{lc $_} &&
 515                                 ! page_locked($_, $session, 1)
 516                         } @page_locs;
 517
 518                         if (! @page_locs) {
 519                                 # hmm, someone else made the page in the
 520                                 # meantime?
 521                                 redirect($q, "$config{url}/".htmlpage($page));
 522                                 return;
 523                         }
 524
 525                         my @page_types;
 526                         if (exists $hooks{htmlize}) {
 527                                 @page_types=keys %{$hooks{htmlize}};
 528                         }
 529
 530                         $form->tmpl_param("page_select", 1);
 531                         $form->field(name => "page", type => 'select',
 532                                 options => \@page_locs, value => $best_loc);
 533                         $form->field(name => "type", type => 'select',
 534                                 options => \@page_types);
 535                         $form->title("creating ".pagetitle($page));
 536                 }
 537                 elsif ($form->field("do") eq "edit") {
 538                         page_locked($page, $session);
 539                         if (! defined $form->field('editcontent') ||
 540                             ! length $form->field('editcontent')) {
 541                                 my $content="";
 542                                 if (exists $pagesources{$page}) {
 543                                         $content=readfile(srcfile($pagesources{$page}));
 544                                         $content=~s/\n/\r\n/g;
 545                                 }
 546                                 $form->field(name => "editcontent", value => $content,
 547                                         force => 1);
 548                         }
 549                         $form->tmpl_param("page_select", 0);
 550                         $form->field(name => "page", type => 'hidden');
 551                         $form->field(name => "type", type => 'hidden');
 552                         $form->title("editing ".pagetitle($page));
 553                 }
 554
 555                 print $form->render(submit => \@buttons);
 556         }
 557         else {
 558                 # save page
 559                 page_locked($page, $session);
 560
 561                 my $content=$form->field('editcontent');
 562
 563                 $content=~s/\r\n/\n/g;
 564                 $content=~s/\r/\n/g;
 565                 writefile($file, $config{srcdir}, $content);
 566
 567                 my $message="web commit ";
 568                 if (defined $session->param("name") &&
 569                     length $session->param("name")) {
 570                         $message.="by ".$session->param("name");
 571                 }
 572                 else {
 573                         $message.="from $ENV{REMOTE_ADDR}";
 574                 }
 575                 if (defined $form->field('comments') &&
 576                     length $form->field('comments')) {
 577                         $message.=": ".$form->field('comments');
 578                 }
 579
 580                 if ($config{rcs}) {
 581                         if ($newfile) {
 582                                 rcs_add($file);
 583                         }
 584                         # prevent deadlock with post-commit hook
 585                         unlockwiki();
 586                         # presumably the commit will trigger an update
 587                         # of the wiki
 588                         my $conflict=rcs_commit($file, $message,
 589                                 $form->field("rcsinfo"));
 590
 591                         if (defined $conflict) {
 592                                 $form->field(name => "rcsinfo", value => rcs_prepedit($file),
 593                                         force => 1);
 594                                 $form->tmpl_param("page_conflict", 1);
 595                                 $form->field("editcontent", value => $conflict, force => 1);
 596                                 $form->field(name => "comments", value => $form->field('comments'), force => 1);
 597                                 $form->field("do", "edit)");
 598                                 $form->tmpl_param("page_select", 0);
 599                                 $form->field(name => "page", type => 'hidden');
 600                                 $form->field(name => "type", type => 'hidden');
 601                                 $form->title("editing $page");
 602                                 print $form->render(submit => \@buttons);
 603                                 return;
 604                         }
 605                 }
 606                 else {
 607                         require IkiWiki::Render;
 608                         refresh();
 609                         saveindex();
 610                 }
 611
 612                 # The trailing question mark tries to avoid broken
 613                 # caches and get the most recent version of the page.
 614                 redirect($q, "$config{url}/".htmlpage($page)."?updated");
 615         }
 616 } #}}}
 617
 618 sub cgi () { #{{{
 619         eval q{use CGI};
 620         eval q{use CGI::Session};
 621
 622         my $q=CGI->new;
 623
 624         run_hooks(cgi => sub { shift->($q) });
 625
 626         my $do=$q->param('do');
 627         if (! defined $do || ! length $do) {
 628                 my $error = $q->cgi_error;
 629                 if ($error) {
 630                         error("Request not processed: $error");
 631                 }
 632                 else {
 633                         error("\"do\" parameter missing");
 634                 }
 635         }
 636
 637         # Things that do not need a session.
 638         if ($do eq 'recentchanges') {
 639                 cgi_recentchanges($q);
 640                 return;
 641         }
 642         elsif ($do eq 'hyperestraier') {
 643                 cgi_hyperestraier();
 644         }
 645
 646         CGI::Session->name("ikiwiki_session_".encode_utf8($config{wikiname}));
 647
 648         my $oldmask=umask(077);
 649         my $session = CGI::Session->new("driver:DB_File", $q,
 650                 { FileName => "$config{wikistatedir}/sessions.db" });
 651         umask($oldmask);
 652
 653         # Everything below this point needs the user to be signed in.
 654         if (((! $config{anonok} || $do eq 'prefs') &&
 655              (! $config{httpauth}) &&
 656              (! defined $session->param("name") ||
 657              ! userinfo_get($session->param("name"), "regdate"))) || $do eq 'signin') {
 658                 cgi_signin($q, $session);
 659
 660                 # Force session flush with safe umask.
 661                 my $oldmask=umask(077);
 662                 $session->flush;
 663                 umask($oldmask);
 664
 665                 return;
 666         }
 667
 668         if ($config{httpauth} && (! defined $session->param("name"))) {
 669                 if (! defined $q->remote_user()) {
 670                         error("Could not determine authenticated username.");
 671                 }
 672                 else {
 673                         $session->param("name", $q->remote_user());
 674                         if (!userinfo_get($session->param("name"),"regdate")) {
 675                                 userinfo_setall($session->param("name"), {
 676                                         email => "",
 677                                         password => "",
 678                                         regdate=>time,
 679                                 });
 680                         }
 681                 }
 682         }
 683
 684         if ($do eq 'create' || $do eq 'edit') {
 685                 cgi_editpage($q, $session);
 686         }
 687         elsif ($do eq 'prefs') {
 688                 cgi_prefs($q, $session);
 689         }
 690         elsif ($do eq 'blog') {
 691                 my $page=titlepage(decode_utf8($q->param('title')));
 692                 # if the page already exists, munge it to be unique
 693                 my $from=$q->param('from');
 694                 my $add="";
 695                 while (exists $pagecase{lc "$from/$page$add"}) {
 696                         $add=1 unless length $add;
 697                         $add++;
 698                 }
 699                 $q->param('page', $page.$add);
 700                 # now run same as create
 701                 $q->param('do', 'create');
 702                 cgi_editpage($q, $session);
 703         }
 704         else {
 705                 error("unknown do parameter");
 706         }
 707 } #}}}
 708
 709 1