X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=bin%2Fmozilla%2Fadmin.pl;h=8cd34c35e225207fb69048c50a9f63a8b63865d6;hb=ccd0b365250f57021a756203f65a4d153709b45d;hp=d258346833be3cbd01264ec956bc4d2ee67c3985;hpb=05709cdceb44d5c022a536503c8cd0dc9832b366;p=kivitendo-erp.git

diff --git a/bin/mozilla/admin.pl b/bin/mozilla/admin.pl
index d25834683..8cd34c35e 100644
--- a/bin/mozilla/admin.pl
+++ b/bin/mozilla/admin.pl
@@ -36,11 +36,19 @@ $menufile = "menu.ini";
 
 use DBI;
 use CGI;
+use POSIX qw(strftime);
+use IO::File;
+use Fcntl;
+use English qw(-no_match_vars);
+use Sys::Hostname;
 
 use SL::Form;
+use SL::Mailer;
 use SL::User;
 use SL::Common;
 use SL::Inifile;
+use SL::DBUpgrade2;
+use SL::DBUtils;
 
 require "bin/mozilla/common.pl";
 
@@ -83,7 +91,7 @@ if ($form->{action}) {
 
   # create memberfile
   if (!-f $memberfile) {
-    open(FH, ">$memberfile") or $form->error("$memberfile : $!");
+    open(FH, ">$memberfile") or $form->error("$memberfile : $ERRNO");
     print FH qq|# SQL-Ledger Accounting members
 
 [root login]
@@ -107,7 +115,7 @@ sub adminlogin {
     qq|Lx-Office ERP $form->{version} | . $locale->text('Administration');
 
   $form->header();
-  print $form->parse_html_template('admin/adminlogin');
+  print $form->parse_html_template2('admin/adminlogin');
 }
 
 sub login {
@@ -118,7 +126,7 @@ sub list_users {
 
   $form->error($locale->text('File locked!')) if (-f "${memberfile}.LCK");
 
-  open(FH, "$memberfile") or $form->error("$memberfile : $!");
+  open(FH, "$memberfile") or $form->error("$memberfile : $ERRNO");
 
   my %members;
 
@@ -147,7 +155,7 @@ sub list_users {
   $form->{MEMBERS} = [ @members{sort { lc $a cmp lc $b } keys %members} ];
 
   $form->header();
-  print $form->parse_html_template("admin/list_users");
+  print $form->parse_html_template2("admin/list_users");
 }
 
 sub add_user {
@@ -157,10 +165,6 @@ sub add_user {
     . $locale->text('Administration') . " / "
     . $locale->text('Add User');
 
-  $form->{Oracle_sid}    = $sid;
-  $form->{Oracle_dbport} = '1521';
-  $form->{Oracle_dbhost} = `hostname`;
-
   my $myconfig = {
     "vclimit"      => 200,
     "countrycode"  => "de",
@@ -217,7 +221,7 @@ sub edit_user_form {
     $form->error(sprintf($locale->text("The directory %s does not exist."), $templates));
   }
 
-  opendir TEMPLATEDIR, "$templates/." or $form->error("$templates : $!");
+  opendir TEMPLATEDIR, "$templates/." or $form->error("$templates : $ERRNO");
   my @all     = readdir(TEMPLATEDIR);
   my @alldir  = sort grep { -d "$templates/$_" && !/^\.\.?$/ } @all;
   my @allhtml = sort grep { -f "$templates/$_" && /\.html$/ } @all;
@@ -251,13 +255,11 @@ sub edit_user_form {
 
   map { $form->{"myc_${_}"} = $myconfig->{$_} } keys %{ $myconfig };
 
-  map { $form->{"Pg_${_}"} = $myconfig->{$_} } qw(dbhost dbport dbname dbuser dbpasswd);
-
   # access control
   my @acsorder = ();
   my %acs      = ();
   my %excl     = ();
-  open(FH, $menufile) or $form->error("$menufile : $!");
+  open(FH, $menufile) or $form->error("$menufile : $ERRNO");
 
   while ($item = <FH>) {
     next unless $item =~ /\[/;
@@ -311,14 +313,12 @@ sub edit_user_form {
   chop $form->{all_acs};
 
   $form->header();
-  print $form->parse_html_template("admin/edit_user");
+  print $form->parse_html_template2("admin/edit_user");
 }
 
 sub save {
 
-  # no driver checked
-  $form->error($locale->text('Database Driver not checked!'))
-    unless $form->{dbdriver};
+  $form->{dbdriver} = 'Pg';
 
   # no spaces allowed in login name
   ($form->{login}) = split / /, $form->{login};
@@ -365,29 +365,8 @@ sub save {
   }
   $form->{acs} = join ";", @acs;
 
-  # check which database was filled in
-  if ($form->{dbdriver} eq 'Oracle') {
-    $form->{sid}      = $form->{Oracle_sid},;
-    $form->{dbhost}   = $form->{Oracle_dbhost},;
-    $form->{dbport}   = $form->{Oracle_dbport};
-    $form->{dbpasswd} = $form->{Oracle_dbpasswd};
-    $form->{dbuser}   = $form->{Oracle_dbuser};
-    $form->{dbname}   = $form->{Oracle_dbuser};
-
-    $form->isblank("dbhost", $locale->text('Hostname missing!'));
-    $form->isblank("dbport", $locale->text('Port missing!'));
-    $form->isblank("dbuser", $locale->text('Dataset missing!'));
-  }
-  if ($form->{dbdriver} eq 'Pg') {
-    $form->{dbhost}   = $form->{Pg_dbhost};
-    $form->{dbport}   = $form->{Pg_dbport};
-    $form->{dbpasswd} = $form->{Pg_dbpasswd};
-    $form->{dbuser}   = $form->{Pg_dbuser};
-    $form->{dbname}   = $form->{Pg_dbname};
-
-    $form->isblank("dbname", $locale->text('Dataset missing!'));
-    $form->isblank("dbuser", $locale->text('Database User missing!'));
-  }
+  $form->isblank("dbname", $locale->text('Dataset missing!'));
+  $form->isblank("dbuser", $locale->text('Database User missing!'));
 
   foreach $item (keys %{$form}) {
     $myconfig->{$item} = $form->{$item};
@@ -415,7 +394,7 @@ sub save {
           }
           close(HTACCESS);
         }
-        open(HTACCESS, "> $file") or die "cannot open $file $!\n";
+        open(HTACCESS, "> $file") or die "cannot open $file $ERRNO\n";
         $newfile .= $myconfig->{login} . ":" . $myconfig->{password} . "\n";
         print(HTACCESS $newfile);
         close(HTACCESS);
@@ -430,7 +409,7 @@ sub save {
           }
           close(HTACCESS);
         }
-        open(HTACCESS, "> $file") or die "cannot open $file $!\n";
+        open(HTACCESS, "> $file") or die "cannot open $file $ERRNO\n";
         print(HTACCESS $newfile);
         close(HTACCESS);
       }
@@ -450,18 +429,18 @@ sub save {
       umask(007);
 
       # copy templates to the directory
-      opendir TEMPLATEDIR, "$templates/." or $form - error("$templates : $!");
+      opendir TEMPLATEDIR, "$templates/." or $form - error("$templates : $ERRNO");
       @templates = grep /$form->{mastertemplates}.*?\.(html|tex|sty|xml|txb)$/,
         readdir TEMPLATEDIR;
       closedir TEMPLATEDIR;
 
       foreach $file (@templates) {
         open(TEMP, "$templates/$file")
-          or $form->error("$templates/$file : $!");
+          or $form->error("$templates/$file : $ERRNO");
 
         $file =~ s/$form->{mastertemplates}-//;
         open(NEW, ">$form->{templates}/$file")
-          or $form->error("$form->{templates}/$file : $!");
+          or $form->error("$form->{templates}/$file : $ERRNO");
 
         while ($line = <TEMP>) {
           print NEW $line;
@@ -470,7 +449,7 @@ sub save {
         close(NEW);
       }
     } else {
-      $form->error("$!: $form->{templates}");
+      $form->error("$ERRNO: $form->{templates}");
     }
   }
 
@@ -480,7 +459,7 @@ sub save {
 
 sub delete {
   $form->error($locale->text('File locked!')) if (-f ${memberfile} . LCK);
-  open(FH, ">${memberfile}.LCK") or $form->error("${memberfile}.LCK : $!");
+  open(FH, ">${memberfile}.LCK") or $form->error("${memberfile}.LCK : $ERRNO");
   close(FH);
 
   my $members = Inifile->new($memberfile);
@@ -541,7 +520,7 @@ sub change_admin_password {
     . $locale->text('Change Admin Password');
 
   $form->header();
-  print $form->parse_html_template("admin/change_admin_password");
+  print $form->parse_html_template2("admin/change_admin_password");
 }
 
 sub change_password {
@@ -582,275 +561,281 @@ sub pg_database_administration {
 
 }
 
-sub oracle_database_administration {
-
-  $form->{dbdriver} = 'Oracle';
-  dbselect_source();
+sub dbselect_source {
+  $form->{dbport}    = '5432';
+  $form->{dbuser}    = 'postgres';
+  $form->{dbdefault} = 'template1';
+  $form->{dbhost}    = 'localhost';
 
-}
+  $form->{title}     = "Lx-Office ERP / " . $locale->text('Database Administration');
 
-sub dbdriver_defaults {
-
-  # load some defaults for the selected driver
-  %driverdefaults = (
-                     'Pg' => { dbport        => '5432',
-                               dbuser        => 'postgres',
-                               dbdefault     => 'template1',
-                               dbhost        => 'localhost',
-                               connectstring => $locale->text('Connect to')
-                     },
-                     'Oracle' => { dbport        => '1521',
-                                   dbuser        => 'oralin',
-                                   dbdefault     => $sid,
-                                   dbhost        => `hostname`,
-                                   connectstring => 'SID'
-                     });
-
-  map { $form->{$_} = $driverdefaults{ $form->{dbdriver} }{$_} }
-    keys %{ $driverdefaults{Pg} };
+  $form->{ALLOW_DBBACKUP} = "$pg_dump_exe" ne "DISABLED";
 
+  $form->header();
+  print $form->parse_html_template2("admin/dbadmin");
 }
 
-sub dbselect_source {
-
-  dbdriver_defaults();
+sub continue {
+  call_sub($form->{"nextsub"});
+}
 
-  $msg{Pg} =
-    $locale->text(
-    'Leave host and port field empty unless you want to make a remote connection.'
-    );
-  $msg{Oracle} =
-    $locale->text(
-           'You must enter a host and port for local and remote connections!');
+sub back {
+  call_sub($form->{"back_nextsub"});
+}
 
+sub update_dataset {
   $form->{title} =
-    "Lx-Office ERP / " . $locale->text('Database Administration');
-
-  $form->header;
-
-  print qq|
-<body class=admin>
+      "Lx-Office ERP "
+    . $locale->text('Database Administration') . " / "
+    . $locale->text('Update Dataset');
 
+  my @need_updates      = User->dbneedsupdate($form);
+  $form->{NEED_UPDATES} = \@need_updates;
+  $form->{ALL_UPDATED}  = !scalar @need_updates;
 
-<center>
-<h2>$form->{title}</h2>
+  $form->header();
+  print $form->parse_html_template2("admin/update_dataset");
+}
 
-<form method=post action=$form->{script}>
+sub dbupdate {
+  $form->{stylesheet} = "lx-office-erp.css";
+  $form->{title}      = $locale->text("Dataset upgrade");
+  $form->header();
 
-<table>
-<tr><td>
+  my $rowcount           = $form->{rowcount} * 1;
+  my @update_rows        = grep { $form->{"update_$_"} } (1 .. $rowcount);
+  $form->{NOTHING_TO_DO} = !scalar @update_rows;
+  my $saved_form         = save_form();
 
-<table>
+  $| = 1;
 
-  <tr class=listheading>
-    <th colspan=4>| . $locale->text('Database') . qq|</th>
-  </tr>
+  print $form->parse_html_template2("admin/dbupgrade_all_header");
 
-<input type=hidden name=dbdriver value=$form->{dbdriver}>
+  foreach my $i (@update_rows) {
+    restore_form($saved_form);
 
-  <tr><td>
-   <table>
+    map { $form->{$_} = $form->{"${_}_${i}"} } qw(dbname dbdriver dbhost dbport dbuser dbpasswd);
 
-  <tr>
+    my $controls = parse_dbupdate_controls($form, $form->{dbdriver});
 
-    <th align=right>| . $locale->text('Host') . qq|</th>
-    <td><input name=dbhost size=25 value=$form->{dbhost}></td>
-    <th align=right>| . $locale->text('Port') . qq|</th>
-    <td><input name=dbport size=5 value=$form->{dbport}></td>
+    print $form->parse_html_template2("admin/dbupgrade_header");
 
-  </tr>
+    $form->{dbupdate}        = $form->{dbname};
+    $form->{$form->{dbname}} = 1;
 
-  <tr>
+    User->dbupdate($form);
+    User->dbupdate2($form, $controls);
 
-    <th align=right>| . $locale->text('User') . qq|</th>
-    <td><input name="dbuser" size="10" value="$form->{dbuser}"></td>
-    <th align=right>| . $locale->text('Password') . qq|</th>
-    <td><input type="password" name="dbpasswd" size="10"></td>
+    print $form->parse_html_template2("admin/dbupgrade_footer");
+  }
 
-  </tr>
+  print $form->parse_html_template2("admin/dbupgrade_all_done");
+}
 
-  <tr>
+sub create_dataset {
+  $form->{dbsources} = join " ", map { "[${_}]" } sort User->dbsources(\%$form);
 
-    <th align=right>$form->{connectstring}</th>
-    <td colspan=3><input name=dbdefault size=10 value=$form->{dbdefault}></td>
+  $form->{CHARTS} = [];
 
-  </tr>
+  opendir SQLDIR, "sql/." or $form - error($ERRNO);
+  foreach $item (sort grep /-chart\.sql\z/, readdir SQLDIR) {
+    next if ($item eq 'Default-chart.sql');
+    $item =~ s/-chart\.sql//;
+    push @{ $form->{CHARTS} }, { "name"     => $item,
+                                 "selected" => $item eq "Germany-DATEV-SKR03EU" };
+  }
+  closedir SQLDIR;
 
-</table>
+  my $default_charset = $dbcharset;
+  $default_charset ||= Common::DEFAULT_CHARSET;
 
-</td></tr>
-</table>
+  $form->{DBENCODINGS} = [];
 
-<input name=callback type=hidden value="$form->{script}?action=list_users&rpw=$form->{rpw}">
-<input type=hidden name=rpw value=$form->{rpw}>
+  foreach my $encoding (@Common::db_encodings) {
+    push @{ $form->{DBENCODINGS} }, { "dbencoding" => $encoding->{dbencoding},
+                                      "label"      => $encoding->{label},
+                                      "selected"   => $encoding->{charset} eq $default_charset };
+  }
 
-<br>
+  $form->{title} =
+      "Lx-Office ERP "
+    . $locale->text('Database Administration') . " / "
+    . $locale->text('Create Dataset');
 
-<input type=submit class=submit name=action value="|
-    . $locale->text('Create Dataset') . qq|">|;
-# Vorübergehend Deaktiviert
-# <input type=submit class=submit name=action value="|
-#     . $locale->text('Update Dataset') . qq|">
-print qq| <input type=submit class=submit name=action value="|
-    . $locale->text('Delete Dataset') . qq|">
+  $form->header();
+  print $form->parse_html_template2("admin/create_dataset");
+}
 
-</form>
+sub dbcreate {
+  $form->isblank("db", $locale->text('Dataset missing!'));
 
-</td></tr>
-</table>
+  User->dbcreate(\%$form);
 
-<p>|
-    . $locale->text(
-    'This is a preliminary check for existing sources. Nothing will be created or deleted at this stage!'
-    )
+  $form->{title} =
+      "Lx-Office ERP "
+    . $locale->text('Database Administration') . " / "
+    . $locale->text('Create Dataset');
 
-    . qq|
-<br>$msg{$form->{dbdriver}}
+  $form->header();
+  print $form->parse_html_template2("admin/dbcreate");
+}
 
+sub delete_dataset {
+  @dbsources = User->dbsources_unused(\%$form, $memberfile);
+  $form->error($locale->text('Nothing to delete!')) unless @dbsources;
 
-</body>
-</html>
-|;
+  $form->{title} =
+      "Lx-Office ERP "
+    . $locale->text('Database Administration') . " / "
+    . $locale->text('Delete Dataset');
+  $form->{DBSOURCES} = [ map { { "name", $_ } } sort @dbsources ];
 
+  $form->header();
+  print $form->parse_html_template2("admin/delete_dataset");
 }
 
-sub continue {
-  call_sub($form->{"nextsub"});
-}
+sub dbdelete {
 
-sub update_dataset {
+  if (!$form->{db}) {
+    $form->error($locale->text('No Dataset selected!'));
+  }
 
-  %needsupdate = User->dbneedsupdate(\%$form);
+  User->dbdelete(\%$form);
 
   $form->{title} =
       "Lx-Office ERP "
     . $locale->text('Database Administration') . " / "
-    . $locale->text('Update Dataset');
+    . $locale->text('Delete Dataset');
+  $form->header();
+  print $form->parse_html_template2("admin/dbdelete");
+}
 
-  $form->header;
+sub backup_dataset {
+  $form->{title} =
+      "Lx-Office ERP "
+    . $locale->text('Database Administration') . " / "
+    . $locale->text('Backup Dataset');
 
-  print qq|
-<body class=admin>
+  if ("$pg_dump_exe" eq "DISABLED") {
+    $form->error($locale->text('Database backups and restorations are disabled in lx-erp.conf.'));
+  }
 
+  my @dbsources         = sort User->dbsources($form);
+  $form->{DATABASES}    = [ map { { "dbname" => $_ } } @dbsources ];
+  $form->{NO_DATABASES} = !scalar @dbsources;
 
-<center>
-<h2>$form->{title}</h2>
-|;
-  my $field_id = 0;
-  foreach $key (sort keys %needsupdate) {
-    if ($needsupdate{$key} ne $form->{dbversion}) {
-      $upd .= qq|<input id="$field_id" name="db$key" type="checkbox" value="1" checked> $key\n|;
-      $form->{dbupdate} .= "db$key ";
-      $field_id++;
-    }
-  }
+  my $username  = getpwuid $UID || "unknown-user";
+  my $hostname  = hostname() || "unknown-host";
+  $form->{from} = "Lx-Office Admin <${username}\@${hostname}>";
 
-  chop $form->{dbupdate};
+  $form->header();
+  print $form->parse_html_template2("admin/backup_dataset");
+}
 
-  if ($form->{dbupdate}) {
+sub backup_dataset_start {
+  $form->{title} =
+      "Lx-Office ERP "
+    . $locale->text('Database Administration') . " / "
+    . $locale->text('Backup Dataset');
 
-    print qq|
-<table width=100%>
-<form method=post action=$form->{script}>
+  $pg_dump_exe ||= "pg_dump";
 
-<input type=hidden name="dbdriver"  value="$form->{dbdriver}">
-<input type=hidden name="dbhost"    value="$form->{dbhost}">
-<input type=hidden name="dbport"    value="$form->{dbport}">
-<input type=hidden name="dbuser"    value="$form->{dbuser}">
-<input type=hidden name="dbpasswd"  value="$form->{dbpasswd}">
-<input type=hidden name="dbdefault" value="$form->{dbdefault}">
+  if ("$pg_dump_exe" eq "DISABLED") {
+    $form->error($locale->text('Database backups and restorations are disabled in lx-erp.conf.'));
+  }
 
-<tr class=listheading>
-  <th>| . $locale->text('The following Datasets need to be updated') . qq|</th>
-</tr>
-<tr>
-<td>
+  $form->isblank("dbname", $locale->text('The dataset name is missing.'));
+  $form->isblank("to", $locale->text('The email address is missing.')) if $form->{destination} eq "email";
 
-$upd
+  my $tmpdir = "/tmp/lx_office_backup_" . Common->unique_id();
+  mkdir $tmpdir, 0700 || $form->error($locale->text('A temporary directory could not be created:') . " $ERRNO");
 
-</td>
-</tr>
-<tr>
-<td>
+  my $pgpass = IO::File->new("${tmpdir}/.pgpass", O_WRONLY | O_CREAT, 0600);
 
-<input name=dbupdate type=hidden value="$form->{dbupdate}">
+  if (!$pgpass) {
+    unlink $tmpdir;
+    $form->error($locale->text('A temporary file could not be created:') . " $ERRNO");
+  }
 
-<input name=callback type=hidden value="$form->{script}?action=list_users&rpw=$form->{rpw}">
+  print $pgpass "$form->{dbhost}:$form->{dbport}:$form->{dbname}:$form->{dbuser}:$form->{dbpasswd}\n";
+  $pgpass->close();
 
-<input type=hidden name=rpw value=$form->{rpw}>
+  $ENV{HOME} = $tmpdir;
 
-<input type=hidden name=nextsub value=dbupdate>
+  my @args = ("-Ft", "-c", "-o", "-h", $form->{dbhost}, "-U", $form->{dbuser});
+  push @args, ("-p", $form->{dbport}) if ($form->{dbport});
+  push @args, $form->{dbname};
 
-<hr size=3 noshade>
+  my $cmd  = "${pg_dump_exe} " . join(" ", map { s/\\/\\\\/g; s/\"/\\\"/g; $_ } @args);
+  my $name = "dataset_backup_$form->{dbname}_" . strftime("%Y%m%d", localtime()) . ".tar";
 
-<br>
-<input type=submit class=submit name=action value="|
-      . $locale->text('Continue') . qq|">
+  if ($form->{destination} ne "email") {
+    my $in = IO::File->new("$cmd |");
 
-</td></tr>
-</table>
-</form>
-|;
+    if (!$in) {
+      unlink "${tmpdir}/.pgpass";
+      rmdir $tmpdir;
 
-  } else {
+      $form->error($locale->text('The pg_dump process could not be started.'));
+    }
 
-    print $locale->text('All Datasets up to date!');
+    print "content-type: application/x-tar\n";
+    print "content-disposition: attachment; filename=\"${name}\"\n\n";
 
-  }
+    while (my $line = <$in>) {
+      print $line;
+    }
 
-  print qq|
+    $in->close();
 
-</body>
-</html>
-|;
+    unlink "${tmpdir}/.pgpass";
+    rmdir $tmpdir;
 
-}
+  } else {
+    my $tmp = $tmpdir . "/dump_" . Common::unique_id();
 
-sub dbupdate {
-  $form->{"stylesheet"} = "lx-office-erp.css";
-  $form->{"title"} = $main::locale->text("Dataset upgrade");
-  $form->header();
-  my $dbname =
-    join(" ",
-         map({ s/\s//g; s/^db//; $_; }
-             grep({ $form->{$_} }
-                  split(/\s+/, $form->{"dbupdate"}))));
-  print($form->parse_html_template("dbupgrade/header",
-                                   { "dbname" => $dbname }));
+    if (system("$cmd > $tmp") != 0) {
+      unlink "${tmpdir}/.pgpass", $tmp;
+      rmdir $tmpdir;
 
-  User->dbupdate(\%$form);
+      $form->error($locale->text('The pg_dump process could not be started.'));
+    }
 
-  print qq|
-<hr>
+    my $mail = new Mailer;
 
-| . $locale->text('Dataset updated!') . qq|
+    map { $mail->{$_} = $form->{$_} } qw(from to cc subject message);
 
-<br>
+    $mail->{charset}     = $dbcharset ? $dbcharset : Common::DEFAULT_CHARSET;
+    $mail->{attachments} = [ { "filename" => $tmp, "name" => $name } ];
+    $mail->send();
 
-<a id="enddatasetupdate" href="admin.pl?action=login&| .
-join("&", map({ "$_=" . $form->escape($form->{$_}); } qw(rpw))) .
-qq|">| . $locale->text("Continue") . qq|</a>|;
+    unlink "${tmpdir}/.pgpass", $tmp;
+    rmdir $tmpdir;
 
-}
+    $form->{title} =
+        "Lx-Office ERP "
+      . $locale->text('Database Administration') . " / "
+      . $locale->text('Backup Dataset');
 
-sub create_dataset {
-  $form->{dbsources} = join " ", map { "[${_}]" } sort User->dbsources(\%$form);
+    $form->header();
+    print $form->parse_html_template2("admin/backup_dataset_email_done");
+  }
+}
 
-  $form->{CHARTS} = [];
+sub restore_dataset {
+  $form->{title} =
+      "Lx-Office ERP "
+    . $locale->text('Database Administration') . " / "
+    . $locale->text('Restore Dataset');
 
-  opendir SQLDIR, "sql/." or $form - error($!);
-  foreach $item (sort grep /-chart\.sql\z/, readdir SQLDIR) {
-    next if ($item eq 'Default-chart.sql');
-    $item =~ s/-chart\.sql//;
-    push @{ $form->{CHARTS} }, { "name"     => $item,
-                                 "selected" => $item eq "Germany-DATEV-SKR03EU" };
+  if ("$pg_restore_exe" eq "DISABLED") {
+    $form->error($locale->text('Database backups and restorations are disabled in lx-erp.conf.'));
   }
-  closedir SQLDIR;
 
-  my $default_charset = $dbcharset;
-  $default_charset ||= Common::DEFAULT_CHARSET;
+  my $default_charset   = $dbcharset;
+  $default_charset    ||= Common::DEFAULT_CHARSET;
 
-  $form->{DBENCODINGS} = [];
+  $form->{DBENCODINGS}  = [];
 
   foreach my $encoding (@Common::db_encodings) {
     push @{ $form->{DBENCODINGS} }, { "dbencoding" => $encoding->{dbencoding},
@@ -858,58 +843,131 @@ sub create_dataset {
                                       "selected"   => $encoding->{charset} eq $default_charset };
   }
 
+  $form->header();
+  print $form->parse_html_template2("admin/restore_dataset");
+}
+
+sub restore_dataset_start {
   $form->{title} =
       "Lx-Office ERP "
     . $locale->text('Database Administration') . " / "
-    . $locale->text('Create Dataset');
+    . $locale->text('Restore Dataset');
 
-  $form->header();
-  print $form->parse_html_template("admin/create_dataset");
-}
+  $pg_restore_exe ||= "pg_restore";
 
-sub dbcreate {
-  $form->isblank("db", $locale->text('Dataset missing!'));
+  if ("$pg_restore_exe" eq "DISABLED") {
+    $form->error($locale->text('Database backups and restorations are disabled in lx-erp.conf.'));
+  }
 
-  User->dbcreate(\%$form);
+  $form->isblank("new_dbname", $locale->text('The dataset name is missing.'));
+  $form->isblank("content", $locale->text('No backup file has been uploaded.'));
 
-  $form->{title} =
-      "Lx-Office ERP "
-    . $locale->text('Database Administration') . " / "
-    . $locale->text('Create Dataset');
+  # Create temporary directories. Write the backup file contents to a temporary
+  # file. Create a .pgpass file with the username and password for the pg_restore
+  # utility.
 
-  $form->header();
-  print $form->parse_html_template("admin/dbcreate");
-}
+  my $tmpdir = "/tmp/lx_office_backup_" . Common->unique_id();
+  mkdir $tmpdir, 0700 || $form->error($locale->text('A temporary directory could not be created:') . " $ERRNO");
 
-sub delete_dataset {
-  @dbsources = User->dbsources_unused(\%$form, $memberfile);
-  $form->error($locale->text('Nothing to delete!')) unless @dbsources;
+  my $pgpass = IO::File->new("${tmpdir}/.pgpass", O_WRONLY | O_CREAT, 0600);
 
-  $form->{title} =
-      "Lx-Office ERP "
-    . $locale->text('Database Administration') . " / "
-    . $locale->text('Delete Dataset');
-  $form->{DBSOURCES} = [ map { { "name", $_ } } sort @dbsources ];
+  if (!$pgpass) {
+    unlink $tmpdir;
+    $form->error($locale->text('A temporary file could not be created:') . " $ERRNO");
+  }
 
-  $form->header();
-  print $form->parse_html_template("admin/delete_dataset");
-}
+  print $pgpass "$form->{dbhost}:$form->{dbport}:$form->{new_dbname}:$form->{dbuser}:$form->{dbpasswd}\n";
+  $pgpass->close();
 
-sub dbdelete {
+  $ENV{HOME} = $tmpdir;
 
-  if (!$form->{db}) {
-    $form->error($locale->text('No Dataset selected!'));
+  my $tmp = $tmpdir . "/dump_" . Common::unique_id();
+  my $tmpfile;
+
+  if (substr($form->{content}, 0, 2) eq "\037\213") {
+    $tmpfile = IO::File->new("| gzip -d > $tmp");
+    $tmpfile->binary();
+
+  } else {
+    $tmpfile = IO::File->new($tmp, O_WRONLY | O_CREAT | O_BINARY, 0600);
   }
 
-  User->dbdelete(\%$form);
+  if (!$tmpfile) {
+    unlink "${tmpdir}/.pgpass";
+    rmdir $tmpdir;
 
-  $form->{title} =
-      "Lx-Office ERP "
-    . $locale->text('Database Administration') . " / "
-    . $locale->text('Delete Dataset');
+    $form->error($locale->text('A temporary file could not be created:') . " $ERRNO");
+  }
+
+  print $tmpfile $form->{content};
+  $tmpfile->close();
+
+  delete $form->{content};
+
+  # Try to connect to the database. Find out if a database with the same name exists.
+  # If yes, then drop the existing database. Create a new one with the name and encoding
+  # given by the user.
+
+  User::dbconnect_vars($form, "template1");
+
+  my %myconfig = map { $_ => $form->{$_} } grep /^db/, keys %{ $form };
+  my $dbh      = $form->dbconnect(\%myconfig) || $form->dberror();
+
+  my ($query, $sth);
+
+  $form->{new_dbname} =~ s|[^a-zA-Z0-9_\-]||g;
+
+  $query = qq|SELECT COUNT(*) FROM pg_database WHERE datname = ?|;
+  my ($count) = selectrow_query($form, $dbh, $query, $form->{new_dbname});
+  if ($count) {
+    do_query($form, $dbh, qq|DROP DATABASE $form->{new_dbname}|);
+  }
+
+  my $found = 0;
+  foreach my $item (@Common::db_encodings) {
+    if ($item->{dbencoding} eq $form->{dbencoding}) {
+      $found = 1;
+      last;
+    }
+  }
+  $form->{dbencoding} = "LATIN9" unless $form->{dbencoding};
+
+  do_query($form, $dbh, qq|CREATE DATABASE $form->{new_dbname} ENCODING ? TEMPLATE template0|, $form->{dbencoding});
+
+  $dbh->disconnect();
+
+  # Spawn pg_restore on the temporary file.
+
+  my @args = ("-h", $form->{dbhost}, "-U", $form->{dbuser}, "-d", $form->{new_dbname});
+  push @args, ("-p", $form->{dbport}) if ($form->{dbport});
+  push @args, $tmp;
+
+  my $cmd = "${pg_restore_exe} " . join(" ", map { s/\\/\\\\/g; s/\"/\\\"/g; $_ } @args);
+
+  my $in = IO::File->new("$cmd 2>&1 |");
+
+  if (!$in) {
+    unlink "${tmpdir}/.pgpass", $tmp;
+    rmdir $tmpdir;
+
+    $form->error($locale->text('The pg_restore process could not be started.'));
+  }
+
+  $AUTOFLUSH = 1;
 
   $form->header();
-  print $form->parse_html_template("admin/dbdelete");
+  print $form->parse_html_template2("admin/restore_dataset_start_header");
+
+  while (my $line = <$in>) {
+    print $line;
+  }
+  $in->close();
+
+  $form->{retval} = $CHILD_ERROR >> 8;
+  print $form->parse_html_template2("admin/restore_dataset_start_footer");
+
+  unlink "${tmpdir}/.pgpass", $tmp;
+  rmdir $tmpdir;
 }
 
 sub unlock_system {