IkiWiki/CGI.pm

   1 #!/usr/bin/perl
   2
   3 use warnings;
   4 use strict;
   5
   6 package IkiWiki;
   7
   8 sub page_locked ($$;$) { #{{{
   9         my $page=shift;
  10         my $session=shift;
  11         my $nonfatal=shift;
  12
  13         my $user=$session->param("name");
  14         return if length $user && is_admin($user);
  15
  16         foreach my $admin (@{$config{adminuser}}) {
  17                 my $locked_pages=userinfo_get($admin, "locked_pages");
  18                 if (globlist_match($page, userinfo_get($admin, "locked_pages"))) {
  19                         return 1 if $nonfatal;
  20                         error(htmllink("", $page, 1)." is locked by ".
  21                               htmllink("", $admin, 1)." and cannot be edited.");
  22                 }
  23         }
  24
  25         return 0;
  26 } #}}}
  27
  28 sub cgi_recentchanges ($) { #{{{
  29         my $q=shift;
  30
  31         unlockwiki();
  32
  33         my $template=HTML::Template->new(
  34                 filename => "$config{templatedir}/recentchanges.tmpl"
  35         );
  36         $template->param(
  37                 title => "RecentChanges",
  38                 indexlink => indexlink(),
  39                 wikiname => $config{wikiname},
  40                 changelog => [rcs_recentchanges(100)],
  41         );
  42         print $q->header, $template->output;
  43 } #}}}
  44
  45 sub cgi_signin ($$) { #{{{
  46         my $q=shift;
  47         my $session=shift;
  48
  49         eval q{use CGI::FormBuilder};
  50         my $form = CGI::FormBuilder->new(
  51                 title => "signin",
  52                 fields => [qw(do title page subpage from name password confirm_password email)],
  53                 header => 1,
  54                 method => 'POST',
  55                 validate => {
  56                         confirm_password => {
  57                                 perl => q{eq $form->field("password")},
  58                         },
  59                         email => 'EMAIL',
  60                 },
  61                 required => 'NONE',
  62                 javascript => 0,
  63                 params => $q,
  64                 action => $q->request_uri,
  65                 header => 0,
  66                 template => (-e "$config{templatedir}/signin.tmpl" ?
  67                               "$config{templatedir}/signin.tmpl" : "")
  68         );
  69
  70         $form->field(name => "name", required => 0);
  71         $form->field(name => "do", type => "hidden");
  72         $form->field(name => "page", type => "hidden");
  73         $form->field(name => "title", type => "hidden");
  74         $form->field(name => "from", type => "hidden");
  75         $form->field(name => "subpage", type => "hidden");
  76         $form->field(name => "password", type => "password", required => 0);
  77         $form->field(name => "confirm_password", type => "password", required => 0);
  78         $form->field(name => "email", required => 0);
  79         if ($q->param("do") ne "signin") {
  80                 $form->text("You need to log in first.");
  81         }
  82
  83         if ($form->submitted) {
  84                 # Set required fields based on how form was submitted.
  85                 my %required=(
  86                         "Login" => [qw(name password)],
  87                         "Register" => [qw(name password confirm_password email)],
  88                         "Mail Password" => [qw(name)],
  89                 );
  90                 foreach my $opt (@{$required{$form->submitted}}) {
  91                         $form->field(name => $opt, required => 1);
  92                 }
  93
  94                 # Validate password differently depending on how
  95                 # form was submitted.
  96                 if ($form->submitted eq 'Login') {
  97                         $form->field(
  98                                 name => "password",
  99                                 validate => sub {
 100                                         length $form->field("name") &&
 101                                         shift eq userinfo_get($form->field("name"), 'password');
 102                                 },
 103                         );
 104                         $form->field(name => "name", validate => '/^\w+$/');
 105                 }
 106                 else {
 107                         $form->field(name => "password", validate => 'VALUE');
 108                 }
 109                 # And make sure the entered name exists when logging
 110                 # in or sending email, and does not when registering.
 111                 if ($form->submitted eq 'Register') {
 112                         $form->field(
 113                                 name => "name",
 114                                 validate => sub {
 115                                         my $name=shift;
 116                                         length $name &&
 117                                         ! userinfo_get($name, "regdate");
 118                                 },
 119                         );
 120                 }
 121                 else {
 122                         $form->field(
 123                                 name => "name",
 124                                 validate => sub {
 125                                         my $name=shift;
 126                                         length $name &&
 127                                         userinfo_get($name, "regdate");
 128                                 },
 129                         );
 130                 }
 131         }
 132         else {
 133                 # First time settings.
 134                 $form->field(name => "name", comment => "use FirstnameLastName");
 135                 $form->field(name => "confirm_password", comment => "(only needed");
 136                 $form->field(name => "email",            comment => "for registration)");
 137                 if ($session->param("name")) {
 138                         $form->field(name => "name", value => $session->param("name"));
 139                 }
 140         }
 141
 142         if ($form->submitted && $form->validate) {
 143                 if ($form->submitted eq 'Login') {
 144                         $session->param("name", $form->field("name"));
 145                         if (defined $form->field("do") &&
 146                             $form->field("do") ne 'signin') {
 147                                 print $q->redirect(
 148                                         "$config{cgiurl}?do=".$form->field("do").
 149                                         "&page=".$form->field("page").
 150                                         "&title=".$form->field("title").
 151                                         "&subpage=".$form->field("subpage").
 152                                         "&from=".$form->field("from"));;
 153                         }
 154                         else {
 155                                 print $q->redirect($config{url});
 156                         }
 157                 }
 158                 elsif ($form->submitted eq 'Register') {
 159                         my $user_name=$form->field('name');
 160                         if (userinfo_setall($user_name, {
 161                                            'email' => $form->field('email'),
 162                                            'password' => $form->field('password'),
 163                                            'regdate' => time
 164                                          })) {
 165                                 $form->field(name => "confirm_password", type => "hidden");
 166                                 $form->field(name => "email", type => "hidden");
 167                                 $form->text("Registration successful. Now you can Login.");
 168                                 print $session->header();
 169                                 print misctemplate($form->title, $form->render(submit => ["Login"]));
 170                         }
 171                         else {
 172                                 error("Error saving registration.");
 173                         }
 174                 }
 175                 elsif ($form->submitted eq 'Mail Password') {
 176                         my $user_name=$form->field("name");
 177                         my $template=HTML::Template->new(
 178                                 filename => "$config{templatedir}/passwordmail.tmpl"
 179                         );
 180                         $template->param(
 181                                 user_name => $user_name,
 182                                 user_password => userinfo_get($user_name, "password"),
 183                                 wikiurl => $config{url},
 184                                 wikiname => $config{wikiname},
 185                                 REMOTE_ADDR => $ENV{REMOTE_ADDR},
 186                         );
 187
 188                         eval q{use Mail::Sendmail};
 189                         my ($fromhost) = $config{cgiurl} =~ m!/([^/]+)!;
 190                         sendmail(
 191                                 To => userinfo_get($user_name, "email"),
 192                                 From => "$config{wikiname} admin <".(getpwuid($>))[0]."@".$fromhost.">",
 193                                 Subject => "$config{wikiname} information",
 194                                 Message => $template->output,
 195                         ) or error("Failed to send mail");
 196
 197                         $form->text("Your password has been emailed to you.");
 198                         $form->field(name => "name", required => 0);
 199                         print $session->header();
 200                         print misctemplate($form->title, $form->render(submit => ["Login", "Register", "Mail Password"]));
 201                 }
 202         }
 203         else {
 204                 print $session->header();
 205                 print misctemplate($form->title, $form->render(submit => ["Login", "Register", "Mail Password"]));
 206         }
 207 } #}}}
 208
 209 sub cgi_prefs ($$) { #{{{
 210         my $q=shift;
 211         my $session=shift;
 212
 213         eval q{use CGI::FormBuilder};
 214         my $form = CGI::FormBuilder->new(
 215                 title => "preferences",
 216                 fields => [qw(do name password confirm_password email locked_pages)],
 217                 header => 0,
 218                 method => 'POST',
 219                 validate => {
 220                         confirm_password => {
 221                                 perl => q{eq $form->field("password")},
 222                         },
 223                         email => 'EMAIL',
 224                 },
 225                 required => 'NONE',
 226                 javascript => 0,
 227                 params => $q,
 228                 action => $q->request_uri,
 229                 template => (-e "$config{templatedir}/prefs.tmpl" ?
 230                               "$config{templatedir}/prefs.tmpl" : "")
 231         );
 232         my @buttons=("Save Preferences", "Logout", "Cancel");
 233
 234         my $user_name=$session->param("name");
 235         $form->field(name => "do", type => "hidden");
 236         $form->field(name => "name", disabled => 1,
 237                 value => $user_name, force => 1);
 238         $form->field(name => "password", type => "password");
 239         $form->field(name => "confirm_password", type => "password");
 240         $form->field(name => "locked_pages", size => 50,
 241                 comment => "(".htmllink("", "GlobList", 1).")");
 242
 243         if (! is_admin($user_name)) {
 244                 $form->field(name => "locked_pages", type => "hidden");
 245         }
 246
 247         if (! $form->submitted) {
 248                 $form->field(name => "email", force => 1,
 249                         value => userinfo_get($user_name, "email"));
 250                 $form->field(name => "locked_pages", force => 1,
 251                         value => userinfo_get($user_name, "locked_pages"));
 252         }
 253
 254         if ($form->submitted eq 'Logout') {
 255                 $session->delete();
 256                 print $q->redirect($config{url});
 257                 return;
 258         }
 259         elsif ($form->submitted eq 'Cancel') {
 260                 print $q->redirect($config{url});
 261                 return;
 262         }
 263         elsif ($form->submitted eq "Save Preferences" && $form->validate) {
 264                 foreach my $field (qw(password email locked_pages)) {
 265                         if (length $form->field($field)) {
 266                                 userinfo_set($user_name, $field, $form->field($field)) || error("failed to set $field");
 267                         }
 268                 }
 269                 $form->text("Preferences saved.");
 270         }
 271
 272         print $session->header();
 273         print misctemplate($form->title, $form->render(submit => \@buttons));
 274 } #}}}
 275
 276 sub cgi_editpage ($$) { #{{{
 277         my $q=shift;
 278         my $session=shift;
 279
 280         eval q{use CGI::FormBuilder};
 281         my $form = CGI::FormBuilder->new(
 282                 fields => [qw(do rcsinfo subpage from page content comments)],
 283                 header => 1,
 284                 method => 'POST',
 285                 validate => {
 286                         content => '/.+/',
 287                 },
 288                 required => [qw{content}],
 289                 javascript => 0,
 290                 params => $q,
 291                 action => $q->request_uri,
 292                 table => 0,
 293                 template => "$config{templatedir}/editpage.tmpl"
 294         );
 295         my @buttons=("Save Page", "Preview", "Cancel");
 296
 297         # This untaint is safe because titlepage removes any problimatic
 298         # characters.
 299         my ($page)=titlepage(possibly_foolish_untaint(lc($form->param('page'))));
 300         if (! defined $page || ! length $page ||
 301             $page=~/$config{wiki_file_prune_regexp}/ || $page=~/^\//) {
 302                 error("bad page name");
 303         }
 304         $page=lc($page);
 305
 306         my $file=$page.$config{default_pageext};
 307         my $newfile=1;
 308         if (exists $pagesources{lc($page)}) {
 309                 $file=$pagesources{lc($page)};
 310                 $newfile=0;
 311         }
 312
 313         $form->field(name => "do", type => 'hidden');
 314         $form->field(name => "from", type => 'hidden');
 315         $form->field(name => "rcsinfo", type => 'hidden');
 316         $form->field(name => "subpage", type => 'hidden');
 317         $form->field(name => "page", value => "$page", force => 1);
 318         $form->field(name => "comments", type => "text", size => 80);
 319         $form->field(name => "content", type => "textarea", rows => 20,
 320                 cols => 80);
 321         $form->tmpl_param("can_commit", $config{rcs});
 322         $form->tmpl_param("indexlink", indexlink());
 323         $form->tmpl_param("helponformattinglink",
 324                 htmllink("", "HelpOnFormatting", 1));
 325         if (! $form->submitted) {
 326                 $form->field(name => "rcsinfo", value => rcs_prepedit($file),
 327                         force => 1);
 328         }
 329
 330         if ($form->submitted eq "Cancel") {
 331                 print $q->redirect("$config{url}/".htmlpage($page));
 332                 return;
 333         }
 334         elsif ($form->submitted eq "Preview") {
 335                 require IkiWiki::Render;
 336                 $form->tmpl_param("page_preview",
 337                         htmlize($config{default_pageext},
 338                                 linkify($form->field('content'), $page)));
 339         }
 340         else {
 341                 $form->tmpl_param("page_preview", "");
 342         }
 343         $form->tmpl_param("page_conflict", "");
 344
 345         if (! $form->submitted || $form->submitted eq "Preview" ||
 346             ! $form->validate) {
 347                 if ($form->field("do") eq "create") {
 348                         if (exists $pagesources{lc($page)}) {
 349                                 # hmm, someone else made the page in the
 350                                 # meantime?
 351                                 print $q->redirect("$config{url}/".htmlpage($page));
 352                                 return;
 353                         }
 354
 355                         my @page_locs;
 356                         my $best_loc;
 357                         my ($from)=$form->param('from')=~/$config{wiki_file_regexp}/;
 358                         if (! defined $from || ! length $from ||
 359                             $from ne $form->param('from') ||
 360                             $from=~/$config{wiki_file_prune_regexp}/ ||
 361                             $from=~/^\// ||
 362                             $form->submitted eq "Preview") {
 363                                 @page_locs=$best_loc=$page;
 364                         }
 365                         else {
 366                                 my $dir=$from."/";
 367                                 $dir=~s![^/]+/$!!;
 368
 369                                 if ((defined $form->param('subpage') && length $form->param('subpage')) ||
 370                                     $page eq 'discussion') {
 371                                         $best_loc="$from/$page";
 372                                 }
 373                                 else {
 374                                         $best_loc=$dir.$page;
 375                                 }
 376
 377                                 push @page_locs, $dir.$page;
 378                                 push @page_locs, "$from/$page";
 379                                 while (length $dir) {
 380                                         $dir=~s![^/]+/$!!;
 381                                         push @page_locs, $dir.$page;
 382                                 }
 383
 384                                 @page_locs = grep {
 385                                         ! exists $pagesources{lc($_)} &&
 386                                         ! page_locked($_, $session, 1)
 387                                 } @page_locs;
 388                         }
 389
 390                         $form->tmpl_param("page_select", 1);
 391                         $form->field(name => "page", type => 'select',
 392                                 options => \@page_locs, value => $best_loc);
 393                         $form->title("creating ".pagetitle($page));
 394                 }
 395                 elsif ($form->field("do") eq "edit") {
 396                         page_locked($page, $session);
 397                         if (! defined $form->field('content') ||
 398                             ! length $form->field('content')) {
 399                                 my $content="";
 400                                 if (exists $pagesources{lc($page)}) {
 401                                         $content=readfile("$config{srcdir}/$pagesources{lc($page)}");
 402                                         $content=~s/\n/\r\n/g;
 403                                 }
 404                                 $form->field(name => "content", value => $content,
 405                                         force => 1);
 406                         }
 407                         $form->tmpl_param("page_select", 0);
 408                         $form->field(name => "page", type => 'hidden');
 409                         $form->title("editing ".pagetitle($page));
 410                 }
 411
 412                 print $form->render(submit => \@buttons);
 413         }
 414         else {
 415                 # save page
 416                 page_locked($page, $session);
 417
 418                 my $content=$form->field('content');
 419                 $content=~s/\r\n/\n/g;
 420                 $content=~s/\r/\n/g;
 421                 writefile("$config{srcdir}/$file", $content);
 422
 423                 my $message="web commit ";
 424                 if (length $session->param("name")) {
 425                         $message.="by ".$session->param("name");
 426                 }
 427                 else {
 428                         $message.="from $ENV{REMOTE_ADDR}";
 429                 }
 430                 if (defined $form->field('comments') &&
 431                     length $form->field('comments')) {
 432                         $message.=": ".$form->field('comments');
 433                 }
 434
 435                 if ($config{rcs}) {
 436                         if ($newfile) {
 437                                 rcs_add($file);
 438                         }
 439                         # prevent deadlock with post-commit hook
 440                         unlockwiki();
 441                         # presumably the commit will trigger an update
 442                         # of the wiki
 443                         my $conflict=rcs_commit($file, $message,
 444                                 $form->field("rcsinfo"));
 445
 446                         if (defined $conflict) {
 447                                 $form->field(name => "rcsinfo", value => rcs_prepedit($file),
 448                                         force => 1);
 449                                 $form->tmpl_param("page_conflict", 1);
 450                                 $form->field("content", value => $conflict, force => 1);
 451                                 $form->field("do", "edit)");
 452                                 $form->tmpl_param("page_select", 0);
 453                                 $form->field(name => "page", type => 'hidden');
 454                                 $form->title("editing $page");
 455                                 print $form->render(submit => \@buttons);
 456                                 return;
 457                         }
 458                 }
 459                 else {
 460                         require IkiWiki::Render;
 461                         refresh();
 462                         saveindex();
 463                 }
 464
 465                 # The trailing question mark tries to avoid broken
 466                 # caches and get the most recent version of the page.
 467                 print $q->redirect("$config{url}/".htmlpage($page)."?updated");
 468         }
 469 } #}}}
 470
 471 sub cgi () { #{{{
 472         eval q{use CGI};
 473         eval q{use CGI::Session};
 474
 475         my $q=CGI->new;
 476
 477         my $do=$q->param('do');
 478         if (! defined $do || ! length $do) {
 479                 error("\"do\" parameter missing");
 480         }
 481
 482         # Things that do not need a session.
 483         if ($do eq 'recentchanges') {
 484                 cgi_recentchanges($q);
 485                 return;
 486         }
 487
 488         CGI::Session->name("ikiwiki_session_$config{wikiname}");
 489
 490         my $oldmask=umask(077);
 491         my $session = CGI::Session->new("driver:db_file", $q,
 492                 { FileName => "$config{wikistatedir}/sessions.db" });
 493         umask($oldmask);
 494
 495         # Everything below this point needs the user to be signed in.
 496         if ((! $config{anonok} && ! defined $session->param("name") ||
 497              ! defined $session->param("name") ||
 498              ! userinfo_get($session->param("name"), "regdate")) || $do eq 'signin') {
 499                 cgi_signin($q, $session);
 500
 501                 # Force session flush with safe umask.
 502                 my $oldmask=umask(077);
 503                 $session->flush;
 504                 umask($oldmask);
 505
 506                 return;
 507         }
 508
 509         if ($do eq 'create' || $do eq 'edit') {
 510                 cgi_editpage($q, $session);
 511         }
 512         elsif ($do eq 'prefs') {
 513                 cgi_prefs($q, $session);
 514         }
 515         elsif ($do eq 'blog') {
 516                 my $page=titlepage(lc($q->param('title')));
 517                 # if the page already exists, munge it to be unique
 518                 my $from=$q->param('from');
 519                 my $add="";
 520                 while (exists $oldpagemtime{"$from/$page$add"}) {
 521                         $add=1 unless length $add;
 522                         $add++;
 523                 }
 524                 $q->param('page', $page.$add);
 525                 # now run same as create
 526                 $q->param('do', 'create');
 527                 cgi_editpage($q, $session);
 528         }
 529         else {
 530                 error("unknown do parameter");
 531         }
 532 } #}}}
 533
 534 1