IkiWiki/Plugin/notifyemail.pm

   1 #!/usr/bin/perl
   2 package IkiWiki::Plugin::notifyemail;
   3
   4 use warnings;
   5 use strict;
   6 use IkiWiki 3.00;
   7
   8 sub import {
   9         hook(type => "formbuilder", id => "notifyemail", call => \&formbuilder);
  10         hook(type => "getsetup", id => "notifyemail",  call => \&getsetup);
  11         hook(type => "changes", id => "notifyemail", call => \&notify);
  12 }
  13
  14 sub getsetup () {
  15         return
  16                 plugin => {
  17                         safe => 1,
  18                         rebuild => 0,
  19                 },
  20 }
  21
  22 sub formbuilder (@) {
  23         my %params=@_;
  24         my $form=$params{form};
  25         return unless $form->title eq "preferences";
  26         my $session=$params{session};
  27         my $username=$session->param("name");
  28         $form->field(name => "subscriptions", size => 50,
  29                 fieldset => "preferences",
  30                 comment => "(".htmllink("", "", "ikiwiki/PageSpec", noimageinline => 1).")");
  31         if (! $form->submitted) {
  32                 $form->field(name => "subscriptions", force => 1,
  33                         value => getsubscriptions($username));
  34         }
  35         elsif ($form->submitted eq "Save Preferences" && $form->validate &&
  36                defined $form->field("subscriptions")) {
  37                 setsubscriptions($username, $form->field('subscriptions'));
  38         }
  39 }
  40
  41 sub getsubscriptions ($) {
  42         my $user=shift;
  43         eval q{use IkiWiki::UserInfo};
  44         error $@ if $@;
  45         IkiWiki::userinfo_get($user, "subscriptions");
  46 }
  47
  48 sub setsubscriptions ($$) {
  49         my $user=shift;
  50         my $subscriptions=shift;
  51         eval q{use IkiWiki::UserInfo};
  52         error $@ if $@;
  53         IkiWiki::userinfo_set($user, "subscriptions", $subscriptions);
  54 }
  55
  56 # Called by other plugins to subscribe the user to a pagespec.
  57 sub subscribe ($$) {
  58         my $user=shift;
  59         my $addpagespec=shift;
  60         my $pagespec=getsubscriptions($user);
  61         setsubscriptions($user,
  62                 length $pagespec ? $pagespec." or ".$addpagespec : $addpagespec);
  63 }
  64
  65 sub notify (@) {
  66         my @files=@_;
  67         return unless @files;
  68
  69         eval q{use Mail::Sendmail};
  70         error $@ if $@;
  71         eval q{use IkiWiki::UserInfo};
  72         error $@ if $@;
  73         eval q{use URI};
  74         error($@) if $@;
  75
  76         # Daemonize, in case the mail sending takes a while.
  77         defined(my $pid = fork) or error("Can't fork: $!");
  78         return if $pid; # parent
  79         chdir '/';
  80         open STDIN, '/dev/null';
  81         open STDOUT, '>/dev/null';
  82         POSIX::setsid() or error("Can't start a new session: $!");
  83         open STDERR, '>&STDOUT' or error("Can't dup stdout: $!");
  84
  85         # Don't need to keep a lock on the wiki as a daemon.
  86         IkiWiki::unlockwiki();
  87
  88         my $userinfo=IkiWiki::userinfo_retrieve();
  89         exit 0 unless defined $userinfo;
  90
  91         foreach my $user (keys %$userinfo) {
  92                 my $pagespec=$userinfo->{$user}->{"subscriptions"};
  93                 next unless defined $pagespec && length $pagespec;
  94                 my $email=$userinfo->{$user}->{email};
  95                 next unless defined $email && length $email;
  96
  97                 foreach my $file (@files) {
  98                         my $page=pagename($file);
  99                         next unless pagespec_match($page, $pagespec);
 100                         my $content="";
 101                         my $showcontent=defined pagetype($file);
 102                         if ($showcontent) {
 103                                 $content=eval { readfile(srcfile($file)) };
 104                                 $showcontent=0 if $@;
 105                         }
 106                         my $url;
 107                         if (! IkiWiki::isinternal($page)) {
 108                                 $url=urlto($page, undef, 1);
 109                         }
 110                         elsif (defined $pagestate{$page}{meta}{permalink}) {
 111                                 # need to use permalink for an internal page
 112                                 $url=URI->new_abs($pagestate{$page}{meta}{permalink}, $config{url});
 113                         }
 114                         else {
 115                                 $url=$config{url}; # crummy fallback url
 116                         }
 117                         my $pagedesc=$page;
 118                         if (defined $pagestate{$page}{meta}{title} &&
 119                             length $pagestate{$page}{meta}{title}) {
 120                                 $pagedesc=qq{"$pagestate{$page}{meta}{title}"};
 121                         }
 122                         my $subject=gettext("change notification:")." ".$pagedesc;
 123                         if (pagetype($file) eq '_comment') {
 124                                 $subject=gettext("comment notification:")." ".$pagedesc;
 125                         }
 126                         my $template=template("notifyemail.tmpl");
 127                         $template->param(
 128                                 wikiname => $config{wikiname},
 129                                 url => $url,
 130                                 prefsurl => IkiWiki::cgiurl_abs(do => 'prefs'),
 131                                 showcontent => $showcontent,
 132                                 content => $content,
 133                         );
 134                         sendmail(
 135                                 To => $email,
 136                                 From => "$config{wikiname} <$config{adminemail}>",
 137                                 Subject => $subject,
 138                                 Message => $template->output,
 139                         );
 140                 }
 141         }
 142
 143         exit 0; # daemon child
 144 }
 145
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