#
# upgrade.pl - routines to do release upgrade
#
# these routines convert data file format from old release to most current
#

use strict;
use Fcntl qw(:DEFAULT :flock);

# extern vars, defined in caller openwebmail-xxx.pl
use vars qw(%config %prefs %lang_text %lang_err);
use vars qw($domain $user $uuid $homedir);

sub upgrade_20030323 {		# called only if homedir doesn't exist
   # rename old homedir for compatibility
   if (!$config{'use_syshomedir'} && $config{'auth_withdomain'} &&
       !-d "$homedir" && -d "$config{'ow_usersdir'}/$user\@$domain") {
      my $olddir=ow::tool::untaint("$config{'ow_usersdir'}/$user\@$domain");
      rename($olddir, $homedir) or
         openwebmailerror(__FILE__, __LINE__, "$lang_text{'rename'} $olddir to $homedir $lang_text{'failed'} ($!)");
      writelog("release upgrade - rename $olddir to $homedir by 20030323");
   }
}

sub upgrade_20021218 {		# called only if folderdir doesn't exist
   my $user_releasedate=$_[0];
   my $folderdir="$homedir/$config{'homedirfolderdirname'}";

   # mv folders from $homedir to $folderdir($homedir/mail/) for old ow_usersdir
   if ($user_releasedate lt "20021218") {
      if ( !$config{'use_syshomedir'} &&
           -f "$homedir/.openwebmailrc" && !-f "$folderdir/.openwebmailrc") {
         opendir(D, $homedir);
         my @files=readdir(D);
         closedir(D);
         foreach my $file (@files) {
            next if ($file eq "." || $file eq ".." || $file eq $config{'homedirfolderdirname'});
            $file=ow::tool::untaint($file);
            rename("$homedir/$file", "$folderdir/$file");
         }
         writelog("release upgrade - mv $homedir/* to $folderdir/* by 20021218");
      }
   }
}

sub upgrade_all {	# called if user releasedate is too old
   my $user_releasedate=$_[0];
   my $content;

   my $folderdir="$homedir/$config{'homedirfolderdirname'}";

   my (@validfolders, $inboxusage, $folderusage);
   getfolders(\@validfolders, \$inboxusage, \$folderusage);

   if ( $user_releasedate lt "20011101" ) {
      if ( -f "$folderdir/.filter.book" ) {
         $content="";
         ow::filelock::lock("$folderdir/.filter.book", LOCK_EX) or
            openwebmailerror(__FILE__, __LINE__, "$lang_err{'couldnt_lock'} $folderdir/.filter.book");
         open(F, "$folderdir/.filter.book");
         while (<F>) {
            chomp;
            my ($priority, $ruletype, $include, $text, $op, $destination, $enable) = split(/\@\@\@/);
            if ( $enable eq '') {
               ($priority, $ruletype, $include, $text, $destination, $enable) = split(/\@\@\@/);
               $op='move';
            }
            $ruletype='textcontent' if ($ruletype eq 'body');
            $content.="$priority\@\@\@$ruletype\@\@\@$include\@\@\@$text\@\@\@$op\@\@\@$destination\@\@\@$enable\n";
         }
         close(F);
         if ($content ne "") {
            writehistory("release upgrade - $folderdir/.filter.book by 20011101");
            writelog("release upgrade - $folderdir/.filter.book by 20011101");
            open(F, ">$folderdir/.filter.book");
            print F $content;
            close(F);
         }
         ow::filelock::lock("$folderdir/.filter.book", LOCK_UN);
      }

      if ( -f "$folderdir/.pop3.book" ) {
         $content="";
         ow::filelock::lock("$folderdir/.pop3.book", LOCK_EX) or
            openwebmailerror(__FILE__, __LINE__, "$lang_err{'couldnt_lock'} $folderdir/.pop3.book");
         open(F, "$folderdir/.pop3.book");
         while (<F>) {
            chomp;
            my @a=split(/:/);
            my ($pop3host, $pop3user, $pop3passwd, $pop3lastid, $pop3del, $enable);
            if ($#a==4) {
               ($pop3host, $pop3user, $pop3passwd, $pop3del, $pop3lastid) = @a;
               $enable=1;
            } elsif ($a[3]=~/\@/) {
               my $pop3email;
               ($pop3host, $pop3user, $pop3passwd, $pop3email, $pop3del, $pop3lastid) = @a;
               $enable=1;
            } else {
               ($pop3host, $pop3user, $pop3passwd, $pop3lastid, $pop3del, $enable) =@a;
            }
            $content.="$pop3host\@\@\@$pop3user\@\@\@$pop3passwd\@\@\@RESERVED\@\@\@$pop3del\@\@\@$enable\n";
         }
         close(F);
         if ($content ne "") {
            writehistory("release upgrade - $folderdir/.pop3.book by 20011101");
            writelog("release upgrade - $folderdir/.pop3.book by 20011101");
            open(F, ">$folderdir/.pop3.book");
            print F $content;
            close(F);
         }
         ow::filelock::lock("$folderdir/.pop3.book", LOCK_UN);
      }
   }

   if ( $user_releasedate lt "20011117" ) {
      for my $book (".from.book", ".address.book", ".pop3.book") {
         if ( -f "$folderdir/$book" ) {
            $content="";
            ow::filelock::lock("$folderdir/$book", LOCK_EX) or
               openwebmailerror(__FILE__, __LINE__, "$lang_err{'couldnt_lock'} $folderdir/$book");
            open(F, "$folderdir/$book");
            while (<F>) {
               last if (/\@\@\@/);
               s/:/\@\@\@/g;
               $content.=$_
            }
            close(F);
            if ($content ne "") {
               writehistory("release upgrade - $folderdir/$book by 20011117");
               writelog("release upgrade - $folderdir/$book by 20011117");
               open(F, ">$folderdir/$book");
               print F $content;
               close(F);
            }
            ow::filelock::lock("$folderdir/$book", LOCK_UN);
         }
      }
   }

   if ( $user_releasedate lt "20011216" ) {
      my @cachefiles;
      my $file;
      opendir(FOLDERDIR, "$folderdir") or
         openwebmailerror(__FILE__, __LINE__, "$lang_err{'couldnt_open'} $folderdir ($!)");
      while (defined($file = readdir(FOLDERDIR))) {
         if ($file=~/^(\..+\.cache)$/) {
            $file="$folderdir/$1";
            push(@cachefiles, $file);
         }
      }
      closedir(FOLDERDIR);
      if ($#cachefiles>=0) {
         writehistory("release upgrade - $folderdir/*.cache by 20011216");
         writelog("release upgrade - $folderdir/*.cache by 20011216");
         # remove old .cache since its format is not compatible with new one
         unlink(@cachefiles);
      }
   }

   if ( $user_releasedate lt "20021201" ) {
      if ( -f "$folderdir/.calendar.book" ) {
         my $content='';
         ow::filelock::lock("$folderdir/.calendar.book", LOCK_EX) or
            openwebmailerror(__FILE__, __LINE__, "$lang_err{'couldnt_lock'} $folderdir/.calendar.book");
         open(F, "$folderdir/.calendar.book");
         while (<F>) {
            next if (/^#/);
            chomp;
            # fields: idate, starthourmin, endhourmin, string, link, email, color
            my @a=split(/\@\@\@/, $_);
            if ($#a==7) {
               $content.=join('@@@', @a);
            } elsif ($#a==6) {
               $content.=join('@@@', @a, 'none');
            } elsif ($#a==5) {
               $content.=join('@@@', @a, ,'0', 'none');
            } elsif ($#a<5) {
               $content.=join('@@@', $a[0], $a[1], $a[2], '0', $a[3], $a[4], '0', 'none');
            }
            $content.="\n";
         }
         close(F);
         if ($content ne "") {
            writehistory("release upgrade - $folderdir/.calendar.book by 20021201");
            writelog("release upgrade - $folderdir/.calendar.book by 20021201");
            open(F, ">$folderdir/.calendar.book");
            print F $content;
            close(F);
         }
         ow::filelock::lock("$folderdir/.calendar.book", LOCK_UN);
      }
   }

   # change the owner of files under ow_usersdir/username from root to $uuid
   if ($user_releasedate lt "20030312") {
      if( !$config{'use_syshomedir'} && -d $homedir) {
         my $chown_bin;
         foreach ("/bin/chown", "/usr/bin/chown", "/sbin/chown", "/usr/sbin/chown") {
            $chown_bin=$_ if (-x $_);
         }
         system($chown_bin, '-R', $uuid, $homedir);
         writelog("release upgrade - chown -R $uuid $homedir/* by 20030312");
      }
   }

   if ( $user_releasedate lt "20030528" ) {
      if ( -f "$folderdir/.pop3.book" ) {
         $content="";
         ow::filelock::lock("$folderdir/.pop3.book", LOCK_EX) or
            openwebmailerror(__FILE__, __LINE__, "$lang_err{'couldnt_lock'} $folderdir/.pop3.book");
         open(F, "$folderdir/.pop3.book");
         while (<F>) {
            chomp;
            my @a=split(/\@\@\@/);
            my ($pop3host, $pop3port, $pop3user, $pop3passwd, $pop3del, $enable)=@a;
            if ($pop3port!~/^\d+$/||$pop3port>65535) {	# not port number? old format!
               ($pop3host, $pop3user, $pop3passwd, $pop3del, $enable)=@a[0,1,2,4,5];
               $pop3port=110;
               # not secure, but better than plaintext
               $pop3passwd=$pop3passwd ^ substr($pop3host,5,length($pop3passwd));
               $pop3passwd=encode_base64($pop3passwd, '');
            }
            $content.="$pop3host\@\@\@$pop3port\@\@\@$pop3user\@\@\@$pop3passwd\@\@\@$pop3del\@\@\@$enable\n";
         }
         close(F);
         if ($content ne "") {
            writehistory("release upgrade - $folderdir/.pop3.book by 20030528");
            writelog("release upgrade - $folderdir/.pop3.book by 20030528");
            open(F, ">$folderdir/.pop3.book");
            print F $content;
            close(F);
         }
         ow::filelock::lock("$folderdir/.pop3.book", LOCK_UN);
      }
   }

   if ( $user_releasedate lt "20031128" ) {
      my %is_dotpath;
      foreach (qw(
         openwebmailrc release.date history.log
         filter.book filter.check
         from.book address.book stationery.book
         trash.check search.cache signature
         calendar.book notify.check
         webdisk.cache
         pop3.book pop3.check authpop3.book
      )) { $is_dotpath{$_}=1; }

      opendir(FOLDERDIR, "$folderdir") or
         openwebmailerror(__FILE__, __LINE__, "$lang_err{'couldnt_open'} $folderdir ($!)");
      while (defined(my $file = readdir(FOLDERDIR))) {
         next if ($file eq '..' || $file!~/^\./);
         $file=~s/^\.//;
         if ($is_dotpath{$file} || $file=~/^uidl\./ || $file=~/^filter\.book/) {
            rename(ow::tool::untaint("$folderdir/.$file"), dotpath($file));
         } elsif ($file=~/\.(lock|cache|db|dir|pag|db\.lock|dir\.lock|pag\.lock)$/) {
            rename(ow::tool::untaint("$folderdir/.$file"), ow::tool::untaint(dotpath('db')."/$file"));
         }
      }
      closedir(FOLDERDIR);
      writehistory("release upgrade - $folderdir/.* to .openwebmail/ by 20031128");
      writelog("release upgrade - $folderdir/.* to .openwebmail/ by 20031128");
   }

   if ( $user_releasedate lt "20040111" ) {
      my $pop3book = dotpath('pop3.book');
      if ( -f $pop3book ) {
         $content="";
         ow::filelock::lock($pop3book, LOCK_EX) or
            openwebmailerror(__FILE__, __LINE__, "$lang_err{'couldnt_lock'} $pop3book");
         open(F, $pop3book);
         while (<F>) {
            chomp;
            my @a=split(/\@\@\@/);
            if ($#a==6) {
               $content.="$_\n";
            } else {
               my ($pop3host, $pop3port, $pop3user, $pop3passwd, $pop3del, $enable)=@a;
               my $pop3ssl=0;
               $content.="$pop3host\@\@\@$pop3port\@\@\@$pop3ssl\@\@\@$pop3user\@\@\@$pop3passwd\@\@\@$pop3del\@\@\@$enable\n";
            }
         }
         close(F);
         if ($content ne "") {
            writehistory("release upgrade - $pop3book by 20040111");
            writelog("release upgrade - $pop3book by 20040111");
            open(F, ">$pop3book");
            print F $content;
            close(F);
         }
         ow::filelock::lock($pop3book, LOCK_UN);
      }
   }

   if ( $user_releasedate lt "20040724" ) {
      my $filterbook = dotpath('filter.book');
      my $filterruledb = dotpath('filter.ruledb');
      # rename filter.book.db -> filter.ruledb.db
      ow::dbm::rename($filterbook, $filterruledb);
   }
}

sub read_releasedatefile {
   # try every possible release date file
   my $releasedatefile=dotpath('release.date');
   $releasedatefile="$homedir/$config{'homedirfolderdirname'}/.release.date" if (! -f $releasedatefile);
   $releasedatefile="$homedir/.release.date" if (! -f $releasedatefile);

   my $d;
   if (open(D, $releasedatefile)) {
      $d=<D>; chomp($d); close(D);
   }
   return($d);
}

sub update_releasedatefile {
   my $releasedatefile=dotpath('release.date');
   open(D, ">$releasedatefile") or 
      openwebmailerror(__FILE__, __LINE__, "$lang_err{'couldnt_open'} $releasedatefile ($!)");
   print D $config{'releasedate'};
   close(D);
}

1;
