events.pm

   1 #! /usr/bin/perl
   2 # Copyright (C) 2014 Julien Moutinho <julm+ikiwiki+events&autogeree.net>
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License,
   7 # or (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
  17
  18 package IkiWiki::Plugin::events;
  19
  20 use strict;
  21 use warnings;
  22 use IkiWiki 3.00;
  23 use Time::Local;
  24 use DateTime;
  25 #use Data::Dumper;
  26
  27 sub import {
  28         hook(type => "getsetup",   id => "events", call => \&getsetup);
  29         hook(type => "needsbuild", id => "events", call => \&needsbuild);
  30         hook(type => "preprocess", id => "events", call => \&preprocess);
  31         hook(type => "sessioncgi", id => "events", call => \&sessioncgi);
  32  }
  33 sub getsetup () {
  34         return
  35          { plugin =>
  36                  { safe => 1
  37                  , rebuild => undef
  38                  , section => "widget"
  39                  }
  40          };
  41  }
  42
  43 my $now
  44  = DateTime->now
  45  ( time_zone => 'local'
  46  , locale    => $config{locale}
  47  )->set_time_zone('floating');
  48 my @days    = ('01'..'31');
  49 my @hours   = ('00'..'23');
  50 my @minutes = ('00'..'59');
  51
  52 # update
  53 sub set_rendering_expiration ($$) {
  54         my ($page, $timestamp) = @_;
  55         if (not exists  $pagestate{$page}{events}{expiration}
  56         or $timestamp < $pagestate{$page}{events}{expiration}) {
  57                 my $time = DateTime->from_epoch
  58                  ( epoch     => $timestamp
  59                  , time_zone => 'UTC'
  60                  , locale    => $config{locale}
  61                  );
  62                 #debug("events: set_rendering_expiration(): will refresh: page=".$page
  63                 # . " after: date=".$time->strftime('%Y-%m-%d_%H-%M-%S'));
  64                 $pagestate{$page}{events}{expiration} = $timestamp;
  65          }
  66  }
  67 sub set_next_rendering (%) {
  68         my %params = @_;
  69         if ($params{type} eq 'month'
  70          and $params{focus}->year()  == $now->year()
  71          and $params{focus}->month() == $now->month()) {
  72                 # NOTE: calendar for current month, updates next day
  73                 my $update = $params{focus}->clone;
  74                 $update->set_hour(0);
  75                 $update->set_minute(0);
  76                 $update->set_second(0);
  77                 $update->set_nanosecond(0);
  78                 my $duration = DateTime::Duration->new(days => 1, end_of_month => 'limit');
  79                 $update->add_duration($duration);
  80                 set_rendering_expiration($params{destpage}, $update->epoch());
  81                 #debug("events: will refresh current month: page=".$params{destpage}
  82                 # . " after: date=".$update->strftime('%Y-%m-%d_%H-%M-%S'));
  83          }
  84         elsif ($params{type} eq 'month'
  85          and ((  $params{focus}->year()  == $now->year()
  86                          and $params{focus}->month()  > $now->month())
  87                  or    $params{focus}->year()   > $now->year())) {
  88                 # NOTE: calendar for upcoming month, updates 1st of next month
  89                 my $update = $params{focus}->clone;
  90                 $update->set_day(1);
  91                 $update->set_hour(0);
  92                 $update->set_minute(0);
  93                 $update->set_second(0);
  94                 $update->set_nanosecond(0);
  95                 set_rendering_expiration($params{destpage}, $update->epoch());
  96                 #debug("events: will refresh upcoming month: page=".$params{destpage}
  97                 # . " after: date=".$update->strftime('%Y-%m-%d_%H-%M-%S'));
  98          }
  99         elsif ($params{type} eq 'day'
 100          and ($params{focus}->year()     == $now->year()
 101                          and $params{focus}->month() == $now->month()
 102                          and $params{focus}->day()   == $now->day())) {
 103                 # NOTE: calendar for current day, updates next day
 104                 my $update = $params{focus}->clone;
 105                 $update->set_hour(0);
 106                 $update->set_minute(0);
 107                 $update->set_second(0);
 108                 $update->set_nanosecond(0);
 109                 my $duration = DateTime::Duration->new(days => 1, end_of_month => 'limit');
 110                 $update->add_duration($duration);
 111                 set_rendering_expiration($params{destpage}, $update->epoch());
 112                 #debug("events: will refresh current day: page=".$params{destpage}
 113                 # . " after: date=".$update->strftime('%Y-%m-%d_%H-%M-%S'));
 114          }
 115         elsif ($params{type} eq 'day'
 116          and ((    $params{focus}->year()  == $now->year()
 117                          and ( $params{focus}->month()  > $now->month()
 118                                  or ($params{focus}->month() == $now->month()
 119                                  and $params{focus}->day()    > $now->day() ))
 120                  or      $params{focus}->year()   > $now->year()))) {
 121                 # NOTE: calendar for upcoming day, updates that day
 122                 my $update = $params{focus}->clone;
 123                 $update->set_hour(0);
 124                 $update->set_minute(0);
 125                 $update->set_second(0);
 126                 $update->set_nanosecond(0);
 127                 set_rendering_expiration($params{destpage}, $update->epoch());
 128                 #debug("events: will refresh upcoming day: page=".$params{destpage}
 129                 # . " after: date=".$update->strftime('%Y-%m-%d_%H-%M-%S'));
 130          }
 131  }
 132 sub needsbuild (@) {
 133         my $needsbuild = shift;
 134         foreach my $page (keys %pagestate) {
 135                 if (exists $pagestate{$page}{events}{expiration}) {
 136                         if ($pagestate{$page}{events}{expiration} <= $now->epoch()) {
 137                                 # NOTE: force a rebuild so the calendar shows the current day
 138                                 push @$needsbuild, $pagesources{$page};
 139                          }
 140                         if (exists $pagesources{$page}
 141                          and grep { $_ eq $pagesources{$page} } @$needsbuild) {
 142                                 # NOTE: remove state, will be re-added
 143                                 #       if the calendar is still there during the rebuild
 144                                 delete $pagestate{$page}{events};
 145                          }
 146                  }
 147          }
 148         return $needsbuild;
 149  }
 150
 151 # render
 152 sub date_of_page ($%) {
 153         my ($page, %params) = @_;
 154         my $dir = IkiWiki::dirname($page);
 155         my ($year, $month, $day, $hour, $hour_begin, $hour_end)
 156          = $dir =~ m{
 157                 .*/
 158                 (\d+)/
 159                 (01|02|03|04|05|06|07|08|09|10|11|12)/
 160                 (01|02|03|04|05|06|07|08|09|10|11|12|13|14|15|16|17|18|19|20|21|22|23|24|25|26|27|28|29|30|31)/
 161                 (([0-2][0-9]h[0-5][0-9])(-[0-2][0-9]h[0-5][0-9])?)?
 162                 $
 163          }x;
 164         my $r =
 165          { year       => $year
 166          , month      => $month
 167          , day        => $day
 168          , hour       => $hour
 169          , hour_begin => $hour_begin
 170          , hour_end   => $hour_end
 171          };
 172         #debug("date_of_page: dir=".$dir." ".Dumper($r));
 173         return $r;
 174  }
 175 sub event_of_page ($%) {
 176         my ($event, %params) = @_;
 177         my $title
 178          = exists $pagestate{$event}{meta}{title}
 179          ? $pagestate{$event}{meta}{title}
 180          : pagetitle(IkiWiki::basename($event));
 181         my $hour
 182          = date_of_page($event)->{hour};
 183         my $link
 184          = htmllink
 185          ( $params{page}
 186          , $params{destpage}
 187          , $event
 188          , linktext => $title
 189          , noimageinline => 1
 190          , title => $title );
 191         my @tags
 192          = sort {lc $a cmp lc $b}
 193          (grep {
 194                         not defined $params{tags}
 195                         or pagespec_match($_, $params{tags})
 196                  }
 197                  (keys %{$IkiWiki::typedlinks{$event}{tag}}));
 198         @tags
 199          = map {
 200                 my $tag = $_;
 201                 my $title
 202                  = exists $pagestate{$tag}{meta}{title}
 203                  ? $pagestate{$tag}{meta}{title}
 204                  : pagetitle(IkiWiki::basename($tag));
 205                 my $link
 206                  = htmllink
 207                  ( $params{page}
 208                  , $params{destpage}
 209                  , '/'.$tag
 210                  , linktext => $title
 211                  , noimageinline => 1
 212                  , title => $title );
 213                 add_depends($params{page}, $event, deptype('content'));
 214                 #add_depends($params{page}, $tag, deptype('content'));
 215                         # XXX: much too heavy :\ and midnight refresh may fix it anyway.
 216                 my $class = qq{$tag};
 217                 $class =~ s{[^a-zA-Z0-9-]}{_}g;
 218                 { class => "tag tag-$class"
 219                 , link  => $link }
 220          } @tags;
 221         my $base = IkiWiki::dirname($event);
 222         $base =~ s/[^a-zA-Z0-9-]/_/g;
 223         return
 224          { hour => $hour
 225          , link => $link
 226          , tags => \@tags
 227          , base => $base };
 228  }
 229 sub events_of_pages ($%) {
 230         my ($pages, %params) = @_;
 231         my @day_events = ();
 232         my @hour_events = ();
 233         my $pagedir = sub { IkiWiki::basename(IkiWiki::dirname(shift)) };
 234         foreach my $page (@$pages) {
 235                 my $date = date_of_page($page);
 236                 if (defined $date->{hour}) {
 237                         push @hour_events, $page;
 238                  }
 239                 else {
 240                         push @day_events, $page;
 241                  }
 242          }
 243         return
 244          map {event_of_page($_, %params)}
 245          ( (sort {lc $pagedir->($a) cmp lc $pagedir->($b)} @day_events)
 246          , (sort {lc $pagedir->($a) cmp lc $pagedir->($b)} @hour_events) );
 247  }
 248 sub event_html ($$%) {
 249         my ($date, $format, %params) = @_;
 250         my $day   = sprintf("%02d", $date->day());
 251         my $month = sprintf("%02d", $date->month());
 252         my $year_html = $date->year();
 253         my $month_html
 254          = $format->{month_name}
 255          ? $date->month_name()
 256          : $month;
 257         my $day_html
 258          = $format->{day_name}
 259          ? $date->day_name()." ".$date->day()
 260          : $format->{day_abbr}
 261          ? $date->day_abbr()." ".$date->day()
 262          : $date->day();
 263         my $wday_class
 264          = "wday-".($date->day_of_week() - 1)
 265          . ( ($date->year()    == $now->year()
 266                         and $date->month() == $now->month()
 267                         and $date->day()   == $now->day())
 268                  ? " today"
 269                  : "" );
 270         my $new_html = "";
 271         if (not defined $params{new} or $params{new} ne 'no') {
 272                 if ($format->{year}) {
 273                         my $year_page
 274                          = sprintf
 275                          ( '%s/%d'
 276                          , $params{base}
 277                          , $date->year()
 278                          );
 279                         add_depends($params{page}, $year_page, deptype("presence"));
 280                         if ($pagesources{$year_page}) {
 281                                 $year_html
 282                                  = htmllink
 283                                  ( $params{page}
 284                                  , $params{destpage}
 285                                  , $year_page
 286                                  , linktext => $year_html
 287                                  , noimageinline => 1 );
 288                          }
 289                  }
 290                 if ($format->{month}) {
 291                         my $month_page
 292                          = sprintf
 293                          ( '%s/%d/%02d'
 294                          , $params{base}
 295                          , $date->year()
 296                          , $date->month()
 297                          );
 298                         add_depends($params{page}, $month_page, deptype("presence"));
 299                         if ($pagesources{$month_page}) {
 300                                 $month_html
 301                                  = htmllink
 302                                  ( $params{page}
 303                                  , $params{destpage}
 304                                  , $month_page
 305                                  , linktext => $month_html
 306                                  , noimageinline => 1 );
 307                          }
 308                  }
 309                 if ($format->{day}) {
 310                         my $day_page
 311                          = sprintf
 312                          ( '%s/%d/%02d/%02d'
 313                          , $params{base}
 314                          , $date->year()
 315                          , $date->month()
 316                          , $date->day()
 317                          );
 318                         add_depends($params{page}, $day_page, deptype("presence"));
 319                         if ($pagesources{$day_page}) {
 320                                 $day_html
 321                                  = htmllink
 322                                  ( $params{page}
 323                                  , $params{destpage}
 324                                  , $day_page
 325                                  , linktext => $day_html
 326                                  , noimageinline => 1 );
 327                          }
 328                  }
 329                 unless ($params{nonew} or not $format->{new}) {
 330                         $new_html
 331                          .= qq{<a class='new' href='}
 332                          . IkiWiki::cgiurl
 333                                  ( base  => $params{base}
 334                                  , ($date->day()
 335                                          ?(day => $day):())
 336                                  , (($date->month() or $date->day())
 337                                          ?(month => $month):())
 338                                  , (($date->year() or $date->month() or $date->day())
 339                                          ?(year => $date->year()):())
 340                                  , do    => 'events'
 341                                  , page  => $params{destpage}
 342                                  )
 343                          . qq{' rel='nofollow'>+</a>};
 344                  }
 345          }
 346         return
 347          { new   => $new_html
 348          , day   => $day_html
 349          , month => $month_html
 350          , year  => $year_html
 351          , wday  => $wday_class
 352          };
 353  }
 354 sub preprocess_day (@) {
 355         my %params = @_;
 356         my @pages
 357          = pagespec_match_list
 358          ( $params{page}
 359          , $params{pages}
 360          , deptype => deptype("presence")
 361                 # NOTE: add presence dependencies to update calendar when pages are added/removed
 362          );
 363         my $event_html
 364          = event_html
 365          ( $params{focus}
 366          , {day=>1, day_name=>1, new => 1}
 367          , %params );
 368         my @events
 369          = map {
 370                 my @tags
 371                  = map {"<li\n class='".$_->{class}."'>".$_->{link}."</li>"}
 372                  @{$_->{tags}};
 373                 "<ul\n class='events'><li class='event event-$_->{base}'>"
 374                  . "<span class='head'>"
 375                                  . (defined $_->{hour} ? "<span class='hour'>$_->{hour}</span>" : "")
 376                          . "<span class='link'>$_->{link}</span>"
 377                  . "</span>"
 378                  . "<ul\n class='tags'>".join("", @tags)."</ul>"
 379                  . "</li></ul>"
 380          }
 381          events_of_pages(\@pages, %params);
 382         return
 383          "<table\n class='wday'>"
 384          . "<thead><tr><th><span\n class='head'><span\n class='day'>"
 385                          . $event_html->{day}
 386                          . $event_html->{new}
 387                  . "</span></span></th></tr></thead>"
 388          . "<tbody><tr><td\n class='wday $event_html->{wday}'>"
 389                  . join("", @events)
 390                  . "</td></tr></tbody>"
 391          . "</table>";
 392  }
 393 sub preprocess_month (@) {
 394         my %params = @_;
 395         my $one_day = DateTime::Duration->new(days => 1, end_of_month => 'limit');
 396         my $day = $params{focus}->clone->set_day(1);
 397         my $last_day
 398           = DateTime->last_day_of_month
 399          ( year  => $params{focus}->year()
 400          , month => $params{focus}->month() )->day();
 401
 402         my @pages
 403          = pagespec_match_list
 404          ( $params{page}
 405          , $params{pages}
 406          , deptype => deptype("presence")
 407                 # NOTE: add presence dependencies to update calendar when pages are added/removed
 408          );
 409
 410         # NOTE: sort the pages by days of the month
 411         my %days = map {($_=>[])} (1 .. $last_day);
 412         foreach my $page (@pages) {
 413                 my $page_ctime = DateTime->from_epoch
 414                  ( epoch     => $IkiWiki::pagectime{$page}
 415                  , time_zone => 'local'
 416                  , locale    => $config{locale}
 417                  );
 418                 push @{$days{$page_ctime->day()}}, $page;
 419          }
 420
 421         my $t='<tr>';
 422         my $first_wday = $day->clone();
 423         my $last_wday  = ($params{week_start_day} + 6) % 7;
 424         while ($first_wday->day_of_week() - 1 != $params{week_start_day}) {
 425          # NOTE: pad the begining
 426                 $first_wday->subtract_duration($one_day);
 427                 $t.="<td class='no-wday'></td>";
 428          }
 429         my $month = $day->month();
 430         for (; $day->month() == $month; $day->add_duration($one_day)) {
 431                 my $event_html
 432                  = event_html
 433                  ( $day
 434                  , {day=>1, day_abbr=>1, new => 1}
 435                  , %params );
 436                 $t.= "<td class='wday $event_html->{wday}'>";
 437                 my @events
 438                  = map {
 439                         my @tags
 440                          = map {"<li\n class='".$_->{class}."'>".$_->{link}."</li>"}
 441                          @{$_->{tags}};
 442                         "<li\n class='event event-$_->{base}'>"
 443                          . "<span class='head'>"
 444                                  . (defined $_->{hour} ? "<span class='hour'>$_->{hour}</span>" : "")
 445                                  . "<span class='link'>$_->{link}</span>"
 446                          . "</span>"
 447                          . "<ul class='tags'>".join("", @tags)."</ul>"
 448                          . "</li>\n"
 449                  }
 450                  events_of_pages($days{$day->day()}, %params);
 451                 $t .=
 452                  "<span class='head'>"
 453                          . "<span class='day'>"
 454                                  . $event_html->{day}
 455                                  . $event_html->{new}
 456                          . "</span>"
 457                  . "</span>"
 458                  . "<ul class='events'>".join("", @events)."</ul>";
 459                 $t.='</td>';
 460                 if ($day->day_of_week() - 1 == $last_wday) {
 461                         $t.="</tr>";
 462                         $t.="<tr>"
 463                                 if ($day->day_of_month() < $last_day);
 464                  }
 465          }
 466         while ($day->day_of_week() - 1 != $params{week_start_day}) {
 467          # NOTE: pad the end
 468                 $day->add_duration($one_day);
 469                 $t.="<td class='no-wday'></td>";
 470          }
 471         $t.='</tr>';
 472         my $event_html
 473          = event_html
 474          ( $params{focus}
 475          , {year=>1, month=>1, month_name=>1}
 476          , %params );
 477         return
 478          "<table class='month'>"
 479          . "<thead>"
 480                  . "<tr>"
 481                  . "<th colspan='7'>"
 482                  . "<span class='month'>$event_html->{month}</span>"
 483                  . " <span class='year'>$event_html->{year}</span>"
 484                  . "</th>"
 485                  . "</tr>"
 486                  . "<tr>"
 487                  . join ("", map {
 488                         $_ = "<th><span>".$first_wday->day_name()."</span></th>";
 489                         $first_wday->add_duration($one_day);
 490                         $_ } (1..7))
 491                  . "</tr>"
 492          . "</thead>"
 493          . "<tbody>$t</tbody></table>";
 494  }
 495 sub preprocess (@) {
 496         my %params = @_;
 497         $params{focus} = $now->clone;
 498
 499         $params{pages} = "*"        unless defined $params{pages};
 500         $params{type}  = "month"    unless defined $params{type};
 501         $params{week_start_day} = 0 unless defined $params{week_start_day};
 502         $params{week_start_day} = $params{week_start_day} % 7;
 503
 504         unless (defined $params{base}) {
 505                 $params{base}
 506                  = defined $config{events_base}
 507                  ? $config{events_base}
 508                  : gettext('Agenda');
 509          }
 510         if (defined $params{day}) {
 511                 if ($params{day} =~ m/^([+-])(\d+)$/) {
 512                         my ($sign, $days) = ($1, $2);
 513                         my $duration = DateTime::Duration->new(days => $days, end_of_month => 'limit');
 514                         $params{focus}
 515                          = $sign eq '+'
 516                          ? $params{focus}->add_duration($duration)
 517                          : $params{focus}->subtract_duration($duration);
 518                  }
 519                 else {
 520                         $params{focus}->set(day => $params{day});
 521                  }
 522          }
 523         else {
 524                 #$params{focus}->set(day => 1);
 525          }
 526         if (defined $params{month}) {
 527                 if ($params{month} =~ m/^([+-])(\d+)$/) {
 528                         my ($sign, $months) = ($1, $2);
 529                         my $duration = DateTime::Duration->new(months => $months, end_of_month => 'limit');
 530                         $params{focus}
 531                          = $sign eq '+'
 532                          ? $params{focus}->add_duration($duration)
 533                          : $params{focus}->subtract_duration($duration);
 534                  }
 535                 else {
 536                         $params{focus}->set(month => $params{month});
 537                  }
 538          }
 539         if (defined $params{year}) {
 540                 if ($params{year} =~ m/^([+-])(\d+)$/) {
 541                         my ($sign, $years) = ($1, $2);
 542                         my $duration = DateTime::Duration->new(years => $years, end_of_month => 'limit');
 543                         $params{focus}
 544                          = $sign eq '+'
 545                          ? $params{focus}->add_duration($duration)
 546                          : $params{focus}->subtract_duration($duration);
 547                  }
 548                 else {
 549                         $params{focus}->set(year => $params{year});
 550                  }
 551          }
 552
 553         #debug("events: focus=".$params{focus}->strftime('%Y-%m-%d_%H-%M-%S'));
 554         $params{pages} =~ s[%Y][$params{focus}->year()]eg;
 555         $params{pages} =~ s[%m][sprintf('%02d', $params{focus}->month())]eg;
 556         $params{pages} =~ s[%d][sprintf('%02d', $params{focus}->day())]eg;
 557
 558         set_next_rendering(%params);
 559
 560         my $calendar = "";
 561         if ($params{type} eq 'month') {
 562                 $calendar = preprocess_month(%params);
 563          }
 564         elsif ($params{type} eq 'day') {
 565                 $calendar = preprocess_day(%params);
 566          }
 567
 568         return "<div class='calendar'>$calendar</div>";
 569  }
 570
 571 # new
 572 sub tmpl ($$) {
 573         my ($base, $model) = @_;
 574         my $page = IkiWiki::dirname($base).'/'.'templates/'.$model;
 575         my $file = defined srcfile($page, 1) ? '/'.$page : $model;
 576         return template($file);
 577  }
 578 sub date_of_form ($$;%) {
 579         my ($form, $prefix, %default) = @_;
 580         %default =
 581          ( year   => 0
 582          , month  => 1
 583          , day    => 1
 584          , hour   => 0
 585          , minute => 0
 586          , %default
 587          );
 588         my $date;
 589         eval { $date = DateTime->new
 590          ( year       => ($form->field($prefix.'_year')   ne '' ? $form->field($prefix.'_year')                : $default{year})
 591          , month      => ($form->field($prefix.'_month')  ne '' ? substr($form->field($prefix.'_month'), 0, 2) : $default{month})
 592          , day        => ($form->field($prefix.'_day')    ne '' ? $form->field($prefix.'_day')                 : $default{day})
 593          , hour       => ($form->field($prefix.'_hour')   ne '' ? $form->field($prefix.'_hour')                : $default{hour})
 594          , minute     => ($form->field($prefix.'_minute') ne '' ? $form->field($prefix.'_minute')              : $default{minute})
 595          , second     => 0
 596          , nanosecond => 0
 597          , time_zone  => 'local'
 598          , locale     => $config{locale}
 599          )->set_time_zone('floating') };
 600         return $date;
 601  };
 602 sub duration_of_form ($$) {
 603         my ($form, $prefix) = @_;
 604         my $dur;
 605         eval { $dur = DateTime::Duration->new
 606          ( years        => $form->field($prefix.'_year')
 607          , months       => $form->field($prefix.'_month')
 608          , days         => $form->field($prefix.'_day')
 609          , weeks        => $form->field($prefix.'_week')
 610          , hours        => $form->field($prefix.'_hour')
 611          , minutes      => $form->field($prefix.'_minute')
 612          , seconds      => 0
 613          , nanoseconds  => 0
 614          , end_of_month => 'limit'
 615          ) };
 616         return $dur;
 617  };
 618 sub page_of_event ($$$$$) {
 619         my ($form, $from_date, $to_date, $name, $base) = @_;
 620         my $time = '';
 621         if ($form->field('from_hour')   ne ''
 622         or  $form->field('from_minute') ne '') {
 623                 if ($from_date->hour() == $to_date->hour()
 624                  and $from_date->minute() == $to_date->minute()) {
 625                         $time = sprintf('%02dh%02d', $from_date->hour(), $from_date->minute());
 626                  }
 627                 else {
 628                         $time = sprintf('%02dh%02d-%02dh%02d'
 629                          , $from_date->hour(), $from_date->minute()
 630                          , $to_date->hour(), $to_date->minute());
 631                  }
 632          }
 633         return
 634          ( $base
 635          . ($base?'/':'').$from_date->year()
 636          . '/'.sprintf('%02d', $from_date->month())
 637          . '/'.sprintf('%02d', $from_date->day())
 638          . '/'. ($time ne '' ? $time . '/' : '')
 639          . $name
 640          );
 641  }
 642 sub check_cannewevent ($$$$) {
 643         my $dest=shift;
 644         my $destfile=shift;
 645         my $cgi=shift;
 646         my $session=shift;
 647
 648         # Must be a legal filename.
 649         if (IkiWiki::file_pruned($destfile)) {
 650                 error(sprintf(gettext("illegal name")));
 651          }
 652         # Must not be a known source file.
 653         if (exists $pagesources{$dest}) {
 654                 error(sprintf(gettext("%s already exists"),
 655                         htmllink("", "", $dest
 656                          , linktext => $dest
 657                          , noimageinline => 1)));
 658          }
 659         # Must not exist on disk already.
 660         if (-l "$config{srcdir}/$destfile" || -e _) {
 661                 error(sprintf(gettext("%s already exists on disk"), $destfile));
 662          }
 663
 664         # Must be editable.
 665         IkiWiki::check_canedit($dest, $cgi, $session);
 666
 667         my $can_newevent;
 668         IkiWiki::run_hooks(can_newevent => sub {
 669                 return if defined $can_newevent;
 670                 my $ret=shift->(cgi => $cgi, session => $session, dest => $dest, destfile => $destfile);
 671                 if (defined $ret) {
 672                         if ($ret eq "") {
 673                                 $can_newevent=1;
 674                          }
 675                         elsif (ref $ret eq 'CODE') {
 676                                 $ret->();
 677                                 $can_newevent=0;
 678                          }
 679                         elsif (defined $ret) {
 680                                 error($ret);
 681                                 $can_newevent=0;
 682                          }
 683                  }
 684          });
 685         return defined $can_newevent ? $can_newevent : 1;
 686  }
 687 sub post_newevent ($$$) {
 688         my $cgi=shift;
 689         my $session=shift;
 690         my $dest=shift;
 691
 692         IkiWiki::redirect($cgi, urlto($dest));
 693         exit;
 694  }
 695 sub newevent_hook {
 696         my %params  = @_;
 697         my @events  = @{$params{events}};
 698         my %done    = %{$params{done}};
 699         my $cgi     = $params{cgi};
 700         my $session = $params{session};
 701         return ()
 702                 unless @events;
 703         my @next;
 704         foreach my $event (@events) {
 705                 unless (exists $done{$event->{page}} && $done{$event->{file}}) {
 706                         IkiWiki::run_hooks(newevent => sub {
 707                                 push @next, shift->
 708                                  ( cgi     => $cgi
 709                                  , event   => $event
 710                                  , session => $session
 711                                  );
 712                          });
 713                         $done{$event->{page}} = 1;
 714                  }
 715          }
 716         push @events, newevent_hook
 717          ( cgi     => $cgi
 718          , done    => \%done
 719          , events  => \@next
 720          , session => $session
 721          );
 722         my %seen; # NOTE: insure unicity
 723         return grep { ! $seen{$_->{page}}++ } @events;
 724  }
 725 sub preview($$$$$) {
 726         my ($cgi, $session, $form, $events, $months) = @_;
 727         $form->tmpl_param(year   => gettext("year"));
 728         $form->tmpl_param(month  => gettext("month"));
 729         $form->tmpl_param(day    => gettext("day"));
 730         $form->tmpl_param(hour   => gettext("hour"));
 731         $form->tmpl_param(min    => gettext("min"));
 732         $form->tmpl_param(dow    => gettext("day of week"));
 733         $form->tmpl_param(page   => gettext("page"));
 734         $form->tmpl_param(events => [
 735                 map {
 736                         { from_year      => $_->{from}->year()
 737                         , from_month     => sprintf('%02d', $_->{from}->month())
 738                         , from_monthname => $months->{$_->{from}->month()}
 739                         , from_day       => sprintf('%02d', $_->{from}->day())
 740                         , from_hour      => sprintf('%02d', $_->{from}->hour())
 741                         , from_minute    => sprintf('%02d', $_->{from}->minute())
 742                         , from_dow       => $_->{from}->dow()
 743                         , from_downame   => $_->{from}->day_name()
 744                         , to_year        => $_->{to}->year()
 745                         , to_month       => sprintf('%02d', $_->{to}->month())
 746                         , to_monthname   => $months->{$_->{to}->month()}
 747                         , to_day         => sprintf('%02d', $_->{to}->day())
 748                         , to_hour        => sprintf('%02d', $_->{to}->hour())
 749                         , to_minute      => sprintf('%02d', $_->{to}->minute())
 750                         , to_dow         => $_->{to}->dow()
 751                         , page           =>
 752                                 htmllink("", "", $_->{page}
 753                                  , linktext => $_->{page}
 754                                  , noimageinline => 1)
 755                         }
 756                  } @$events
 757          ]);
 758         if (@$events > 0) {
 759                 my $page = @$events[0];
 760                 # FROM: editpage.pm
 761                 my $new = not exists $pagesources{$page};
 762                 # temporarily record its type
 763                 my $type = $config{default_pageext};
 764                 $pagesources{$page} = $page.".".$type if $new;
 765                 my %wasrendered = map { $_ => 1 } @{$renderedfiles{$page}};
 766                 my $content = @$events[0]->{content};
 767
 768                 IkiWiki::run_hooks(editcontent => sub {
 769                         $content = shift->
 770                          ( cgi     => $cgi
 771                          , content => $content
 772                          , page    => $page
 773                          , session => $session
 774                          );
 775                  });
 776                 my $preview = IkiWiki::htmlize($page, $page, $type,
 777                         IkiWiki::linkify($page, $page,
 778                         IkiWiki::preprocess($page, $page,
 779                         IkiWiki::filter($page, $page, $content), 0, 1)));
 780                 IkiWiki::run_hooks(format => sub {
 781                         $preview = shift->
 782                          ( content => $preview
 783                          , page    => $page
 784                          );
 785                  });
 786                 $form->tmpl_param("preview", $preview);
 787
 788                 # Previewing may have created files on disk.
 789                 # Keep a list of these to be deleted later.
 790                 my %previews = map { $_ => 1 } @{$wikistate{editpage}{previews}};
 791                 foreach my $f (@{$renderedfiles{$page}}) {
 792                         $previews{$f} = 1 unless $wasrendered{$f};
 793                  }
 794
 795                 # Throw out any other state changes made during previewing,
 796                 # and save the previews list.
 797                 IkiWiki::loadindex();
 798                 @{$wikistate{editpage}{previews}} = keys %previews;
 799                 IkiWiki::saveindex();
 800          }
 801         else {
 802                 $form->tmpl_param("preview", gettext("No event"));
 803          }
 804  }
 805 sub create ($$$$$) {
 806         my ($event, $cgi, $session, $months, $base) = @_;
 807         check_cannewevent
 808          ( $event->{page}
 809          , $event->{file}
 810          , $cgi
 811          , $session
 812          );
 813         my $pageext = $config{default_pageext};
 814
 815         $config{cgi} = 0; # NOTE: avoid CGI error message
 816         eval { writefile($event->{file}, $config{srcdir}, $event->{content}) };
 817         if ($config{rcs}) {
 818                 IkiWiki::rcs_add($event->{file});
 819          }
 820         # month page
 821                 my $monthpage =
 822                  ( $base
 823                  . ($base?'/':'').$event->{from}->year()
 824                  . '/'.sprintf('%02d', $event->{from}->month())
 825                  );
 826                 my $monthfile = IkiWiki::newpagefile($monthpage, $pageext);
 827                 if (not exists $pagesources{$monthpage}
 828                  and not -l $config{srcdir}.'/'.$monthfile
 829                  and not -e _) {
 830                         my $tmpl_neweventmonth = tmpl($base, 'neweventmonth.tmpl');
 831                         $tmpl_neweventmonth->param(base      => $base);
 832                         $tmpl_neweventmonth->param(year      => $event->{from}->year());
 833                         $tmpl_neweventmonth->param(month     => sprintf('%02d', $event->{from}->month()));
 834                         $tmpl_neweventmonth->param(monthname => $months->{$event->{from}->month()});
 835                         my $content = $tmpl_neweventmonth->output();
 836                         eval { writefile($monthfile, $config{srcdir}, $content) };
 837                         if ($config{rcs}) {
 838                                 IkiWiki::rcs_add($monthfile);
 839                          }
 840                  }
 841         # day page
 842                 my $daypage =
 843                  ( $monthpage
 844                  . '/'.sprintf('%02d', $event->{from}->day())
 845                  );
 846                 my $dayfile = IkiWiki::newpagefile($daypage, $pageext);
 847                 if (not exists $pagesources{$daypage}
 848                  and not -l $config{srcdir}.'/'.$dayfile
 849                  and not -e _) {
 850                         my $tmpl_neweventday = tmpl($base, 'neweventday.tmpl');
 851                         $tmpl_neweventday->param(base      => $base);
 852                         $tmpl_neweventday->param(year      => $event->{from}->year());
 853                         $tmpl_neweventday->param(month     => sprintf('%02d', $event->{from}->month()));
 854                         $tmpl_neweventday->param(monthname => $months->{$event->{from}->month()});
 855                         $tmpl_neweventday->param(day       => sprintf('%02d', $event->{from}->day()));
 856                         $tmpl_neweventday->param(dayname   => $event->{from}->day_name());
 857                         my $content = $tmpl_neweventday->output();
 858                         eval { writefile($dayfile, $config{srcdir}, $content) };
 859                         if ($config{rcs}) {
 860                                 IkiWiki::rcs_add($dayfile);
 861                          }
 862                  }
 863         $config{cgi} = 1;
 864  }
 865 sub sessioncgi ($$) {
 866         my ($cgi, $session) = @_;
 867         if (defined $cgi->param('do') && $cgi->param('do') eq "newevent") {
 868                 # TOTRY: decode_cgi_utf8($cgi);
 869                 my $base = Encode::decode_utf8(URI::Escape::uri_unescape(IkiWiki::possibly_foolish_untaint($cgi->param('base'))));
 870                 &IkiWiki::check_canedit($base, $cgi, $session);
 871                 my $page = Encode::decode_utf8(URI::Escape::uri_unescape(IkiWiki::possibly_foolish_untaint($cgi->param('page'))));
 872
 873                 my $now_date = DateTime->now
 874                  ( time_zone => 'local'
 875                  , locale    => $config{locale}
 876                  )->set_time_zone('floating');
 877                 my %dows   = map { ($_ => $now_date->{locale}->day_format_wide->[ $_ ]) } (0..6);
 878                 my %months = map { ($_ => $now_date->{locale}->month_format_wide->[ $_ - 1 ]) } (1..12);
 879                 my $cgi_date;
 880                 eval { $cgi_date = DateTime->new
 881                  ( year       => defined $cgi->param("year")   ? $cgi->param("year")   : $now_date->year()
 882                  , month      => defined $cgi->param("month")  ? $cgi->param("month")  : $now_date->month()
 883                  , day        => defined $cgi->param("day")    ? $cgi->param("day")    : $now_date->day()
 884                  , hour       => defined $cgi->param("hour")   ? $cgi->param("hour")   : $now_date->hour()
 885                  , minute     => defined $cgi->param("minute") ? $cgi->param("minute") : $now_date->minute()
 886                  , second     => 0
 887                  , nanosecond => 0
 888                  , time_zone  => 'local'
 889                  , locale     => $config{locale}
 890                  )->set_time_zone('floating') };
 891                 error(sprintf(gettext("illegal date")))
 892                         unless $cgi_date;
 893
 894                 my @years = ($cgi_date->year() .. $cgi_date->year()+5);
 895                 my $week_start_day
 896                  = (defined $config{week_start_day} and $config{week_start_day} >= 0 and $config{week_start_day} <= 6)
 897                  ?          $config{week_start_day}
 898                  : 1;
 899                 my @dow_order = ($week_start_day .. 6, 0 .. $week_start_day-1);
 900
 901                 my $tags = $typedlinks{$page}{tag};
 902                 my $buttons = [qw{Preview Create}];
 903                 my ($from_date, $to_date, $end_date, $inc_dur);
 904                 my $form = CGI::FormBuilder->new
 905                  ( action => IkiWiki::cgiurl()
 906                  , charset => "utf-8"
 907                  , fields => [qw{
 908                          do base
 909                          from_date from_year from_month from_day from_hour from_minute
 910                          to_date to_year to_month to_day to_hour to_minute
 911                          inc_dur inc_year inc_month inc_week inc_day inc_hour inc_minute
 912                          end_times end_date end_year end_month end_day end_hour end_minute
 913                          dom name content
 914                          }]
 915                  , header => 0
 916                  , javascript => 0
 917                  , messages =>
 918                          {
 919                         #   form_required_text  => 'form_required_text'
 920                         # , form_invalid_text   => 'form_invalid_text'
 921                         # , form_invalid_file   => 'form_invalid_file'
 922                         # , form_invalid_input  => gettext('allowed characters: ').$config{wiki_file_chars}
 923                          form_invalid_select => gettext('invalid selection')
 924                          }
 925                  , method     => 'POST'
 926                  , name       => "newevent"
 927                  , stylesheet => 1
 928                  , params     => $cgi
 929                  , required   => [qw{do base year month day name from_date to_date end_date inc_dur}]
 930                  , submit     => [qw{Preview Create}]
 931                  , title      => gettext("newevent")
 932                  , template   => { template("newevent.tmpl") }
 933                  , validate   =>
 934                          { from_date => { perl => sub {
 935                                         my (undef, $form) = @_;
 936                                         $from_date = date_of_form($form, 'from')
 937                                                 unless defined $from_date;
 938                                         defined $from_date
 939                                  } }
 940                          , to_date   => { perl => sub {
 941                                         my (undef, $form) = @_;
 942                                         $from_date = date_of_form($form, 'from')
 943                                                 unless defined $from_date;
 944                                         if (defined $from_date) {
 945                                                 $to_date = date_of_form($form, 'to'
 946                                                  , year   => $from_date->year()
 947                                                  , month  => $from_date->month()
 948                                                  , day    => $from_date->day()
 949                                                  , hour   => $from_date->hour()
 950                                                  , minute => $from_date->minute());
 951                                                 defined $to_date
 952                                                 and (DateTime->compare($from_date, $to_date) <= 0)
 953                                          }
 954                                         else {return 0;}
 955                                  } }
 956                          , end_date  => { perl => sub {
 957                                         my (undef, $form) = @_;
 958                                         if ( $form->field('end_year')   ne ''
 959                                          or  $form->field('end_month')  ne ''
 960                                          or  $form->field('end_day')    ne '' ) {
 961                                                 $from_date = date_of_form($form, 'from')
 962                                                         unless defined $from_date;
 963                                                 if (defined $from_date) {
 964                                                         $end_date = date_of_form($form, 'end'
 965                                                          , year   => $from_date->year()
 966                                                          , month  => $from_date->month()
 967                                                          , day    => $from_date->day()
 968                                                          , hour   => $from_date->hour()
 969                                                          , minute => $from_date->minute());
 970                                                         (defined $from_date and defined $end_date
 971                                                         and DateTime->compare($from_date, $end_date) <= 0)
 972                                                  }
 973                                                 else {return 0;}
 974                                          }
 975                                         else {
 976                                                 1;
 977                                          }
 978                                  } }
 979                          , name => '/^.+$/'
 980                          , base => '/^.*$/'
 981                          , end_times  => sub { $_[0] =~ m/^\d+$/ and $_[0] >= 0 }
 982                          , inc_year   => sub { $_[0] =~ m/^\d+$/ and $_[0] >= 0 }
 983                          , inc_month  => sub { $_[0] =~ m/^\d+$/ and $_[0] >= 0 }
 984                          , inc_week   => sub { $_[0] =~ m/^\d+$/ and $_[0] >= 0 }
 985                          , inc_day    => sub { $_[0] =~ m/^\d+$/ and $_[0] >= 0 }
 986                          , inc_hour   => sub { $_[0] =~ m/^\d+$/ and $_[0] >= 0 }
 987                          , inc_minute => sub { $_[0] =~ m/^\d+$/ and $_[0] >= 0 }
 988                          , inc_dur    => sub {
 989                                         my (undef, $form) = @_;
 990                                         $inc_dur = duration_of_form($form, 'inc');
 991                                         defined $inc_dur
 992                                         and ($inc_dur->is_positive() or $inc_dur->is_zero());
 993                                  }
 994                          }
 995                  );
 996                 $base = $form->field('base') ? $form->field('base') : $base;
 997                 $form->title(sprintf(gettext("creating new events"), pagetitle(IkiWiki::basename($page))));
 998                 $form->field(name => "do", type => "hidden", value => 'newevent', force => 1);
 999                 $form->field(name => "base", type => "hidden", force => 1 , value => $base);
1000                 $form->field(name => "from_date", type => "hidden", value => '1', force => 1);
1001                 $form->field(name => "to_date", type => "hidden", value => '1', force => 1);
1002                 $form->field(name => "end_date", type => "hidden", value => '1', force => 1);
1003                 $form->field(name => "inc_dur", type => "hidden", value => '1', force => 1);
1004                 $form->field(name => "from_year", type => 'select', value => $cgi_date->year(), options => \@years);
1005                 $form->field(name => "from_month", type => 'select'
1006                  , value => sprintf("%02d", $cgi_date->month()).' - '.$months{$cgi_date->month()}
1007                  , options => [map { sprintf("%02d", $_).' - '.$months{$_} } (1..12)]);
1008                 $form->field(name => "from_day", type => 'select'
1009                  , value => sprintf("%02d", $cgi_date->day())
1010                  , options => \@days);
1011                 $form->field(name => "from_hour", type => 'select', value => '', options => \@hours);
1012                 $form->field(name => "from_minute", type => 'select', value => '', options => \@minutes);
1013                 $form->field(name => "name", type => 'text', size => 60, value => gettext('New event'));
1014                 $form->field(name => "to_year", type => 'select', value => '', options => \@years);
1015                 $form->field(name => "to_month", type => 'select'
1016                  , value => ''
1017                  , options => [map { sprintf("%02d", $_).' - '.$months{$_} } (1..12)]);
1018                 $form->field(name => "to_day", type => 'select'
1019                  , value => ''
1020                  , options => \@days);
1021                 $form->field(name => "to_hour", type => 'select', value => '', options => \@hours);
1022                 $form->field(name => "to_minute", type => 'select', value => '', options => \@minutes);
1023                 $form->field(name => "end_year", type => 'select', value => '', options => \@years);
1024                 $form->field(name => "end_month", type => 'select', value => ''
1025                  , options => [map { sprintf("%02d", $_).' - '.$months{$_} } (1..12)]);
1026                 $form->field(name => "end_day", type => 'select', value => '', options => \@days);
1027                 $form->field(name => "end_hour", type => 'select', value => '', options => \@hours);
1028                 $form->field(name => "end_minute", type => 'select', value => '', options => \@minutes);
1029                 $form->field(name => "end_times", type => 'text', value => '0', size => 2);
1030                 $form->field(name => "inc_year", type => 'text', value => '0', size => 2);
1031                 $form->field(name => "inc_month", type => 'text', value => '0', size => 2);
1032                 $form->field(name => "inc_week", type => 'text', value => '0', size => 2);
1033                 $form->field(name => "inc_day", type => 'text', value => '0', size => 2);
1034                 $form->field(name => "inc_hour", type => 'text', value => '0', size => 2);
1035                 $form->field(name => "inc_minute", type => 'text', value => '0', size => 2);
1036                 my $tmpl_neweventcontent = tmpl($base, 'neweventcontent.tmpl');
1037                 $tmpl_neweventcontent->param(title => gettext('Title of the event'));
1038                 $tmpl_neweventcontent->param(tags => [map {{name => $_}} (sort keys %$tags)]);
1039                 $form->field(name => "content", type => "textarea", size => 30, rows => 20, cols => 80
1040                  , value => $tmpl_neweventcontent->output());
1041                 $form->field(name => "dom", type => 'select', multiple => 1, size => 35
1042                  , options => [map { my $n = $_; map {($n.' '.$dows{$_})} (0..6)} ('1°', '2°', '3°', '4°', '5°')]);
1043
1044                 IkiWiki::decode_form_utf8($form);
1045                 IkiWiki::run_hooks(formbuilder_setup => sub {
1046                         shift->(form => $form, cgi => $cgi, session => $session, buttons => $buttons);
1047                  });
1048                 IkiWiki::decode_form_utf8($form);
1049
1050                 if (($form->submitted eq 'Create' || $form->submitted eq 'Preview') && $form->validate) {
1051                         #IkiWiki::checksessionexpiry($cgi, $session, $cgi->param('sid'));
1052                         $base
1053                          = $form->field('base')
1054                          ? $form->field('base')
1055                          : (defined $config{base} ? $config{base} : gettext('Agenda'));
1056                         my $end_times
1057                          = $form->field('end_times') == 0
1058                          ? undef : $form->field('end_times');
1059                         my $dom;
1060                         foreach ($form->field('dom')) {
1061                                 $dom = {} if not defined $dom;
1062                                 $dom->{$_} = 1;
1063                          }
1064                         my $name = $form->field('name');
1065                         $name = IkiWiki::possibly_foolish_untaint(IkiWiki::titlepage($name));
1066                                 # NOTE: these untaints are safe because of the checks
1067                                 #       performed in check_cannewevent later.
1068                         my $content = $form->field('content');
1069                         $content =~ s/\r\n/\n/gs;
1070                         $content =~ s/\n$//s;
1071
1072                         # Queue of event creations to perfom.
1073                         my @events = ();
1074                         my $events_try = 0;
1075                         my $events_max
1076                          = defined $config{newevent_max_per_commit}
1077                          ? $config{newevent_max_per_commit} : (2 * 365) ;
1078                         my $pageext = $config{default_pageext};
1079                         while (++$events_try <= $events_max
1080                          and (not defined $end_times or --$end_times >= 0)
1081                          and (not defined $end_date or DateTime->compare($from_date, $end_date) <= 0)) {
1082                                 my $dest = page_of_event($form, $from_date, $to_date, $name, $base);
1083                                 my $week = $from_date->weekday_of_month();
1084                                 my $day = $now_date->{locale}->day_format_wide->[$from_date->day_of_week()-1];
1085                                 if (not defined $dom or exists $dom->{"$week° $day"}) {
1086                                         push @events,
1087                                          { page => $dest
1088                                          , file => IkiWiki::newpagefile($dest, $pageext)
1089                                          , from => $from_date
1090                                          , to   => $to_date
1091                                          , name => $name
1092                                          };
1093                                  }
1094                                 last unless defined $inc_dur and $inc_dur->is_positive();
1095                                 $from_date = $from_date->clone->add_duration($inc_dur);
1096                                 $to_date   = $to_date->clone->add_duration($inc_dur);
1097                          }
1098                         error("events try per commit overflow: $events_max")
1099                                 unless $events_try <= $events_max;
1100                         my $tmpl_neweventpage = tmpl($base, 'neweventpage.tmpl');
1101                         my $i = 0;
1102                         foreach (@events) {
1103                                 $tmpl_neweventpage->clear_params();
1104                                 $tmpl_neweventpage->param(content => $content);
1105                                 $tmpl_neweventpage->param(page => $_->{page});
1106                                 $tmpl_neweventpage->param(event => $i);
1107                                 $tmpl_neweventpage->param("event_first" => 1)
1108                                         if $i == 0;
1109                                 $tmpl_neweventpage->param("event_last" => 1)
1110                                         if $i == @events - 1;
1111                                 $tmpl_neweventpage->param(events => \@events);
1112                                 $tmpl_neweventpage->param(from_date => "$_->{from}");
1113                                 $tmpl_neweventpage->param(name => $_->{name});
1114                                 $tmpl_neweventpage->param(to_date => "$_->{to}");
1115                                 $_->{content} = $tmpl_neweventpage->output();
1116                                 $i++;
1117                          }
1118                         if ($form->submitted eq 'Create') {
1119                                 @events = newevent_hook
1120                                  ( cgi     => $cgi
1121                                  , done    => {}
1122                                  , events  => \@events
1123                                  , session => $session
1124                                  );
1125                                 require IkiWiki::Render;
1126                                 if ($config{rcs}) {
1127                                         IkiWiki::disable_commit_hook()
1128                                  }
1129                                 foreach my $event (@events) {
1130                                         create($event, $cgi, $session, \%months, $base);
1131                                  }
1132                                 if ($config{rcs}) {
1133                                         IkiWiki::rcs_commit_staged
1134                                          ( message => sprintf(gettext("new event"))
1135                                          , session => $session );
1136                                         IkiWiki::enable_commit_hook();
1137                                         IkiWiki::rcs_update();
1138                                  }
1139                                 IkiWiki::refresh();
1140                                 IkiWiki::saveindex();
1141
1142                                 post_newevent($cgi, $session, (defined $events[0] ? $events[0]->{page} : ''));
1143                          }
1144                         elsif ($form->submitted eq 'Preview') {
1145                                 preview($cgi, $session, $form, \@events, \%months);
1146                                 IkiWiki::showform($form, $buttons, $session, $cgi);
1147                          }
1148                  }
1149                 else {
1150                         IkiWiki::showform($form, $buttons, $session, $cgi);
1151                  }
1152
1153                 exit 0;
1154          }
1155  }
1156
1157 1;