X-Git-Url: http://wagnertech.de/gitweb/gitweb.cgi/mfinanz.git/blobdiff_plain/955745215abc2cc6d1c0e35f6972250a707aa9c2..f71b2873b17c2c17ad9b71139cb389f689645ad4:/SL/Auth.pm

diff --git a/SL/Auth.pm b/SL/Auth.pm
index 44778babd..3b14def5d 100644
--- a/SL/Auth.pm
+++ b/SL/Auth.pm
@@ -6,12 +6,15 @@ use Digest::MD5 qw(md5_hex);
 use IO::File;
 use Time::HiRes qw(gettimeofday);
 use List::MoreUtils qw(uniq);
+use YAML;
 
 use SL::Auth::Constants qw(:all);
 use SL::Auth::DB;
 use SL::Auth::LDAP;
 
 use SL::User;
+use SL::DBConnect;
+use SL::DBUpgrade2;
 use SL::DBUtils;
 
 use strict;
@@ -33,10 +36,19 @@ sub new {
   return $self;
 }
 
+sub reset {
+  my ($self, %params) = @_;
+
+  $self->{SESSION}          = { };
+  $self->{FULL_RIGHTS}      = { };
+  $self->{RIGHTS}           = { };
+  $self->{unique_counter}   = 0;
+}
+
 sub get_user_dbh {
   my ($self, $login) = @_;
   my %user = $self->read_user($login);
-  my $dbh  = DBI->connect(
+  my $dbh  = SL::DBConnect->connect(
     $user{dbconnect},
     $user{dbuser},
     $user{dbpasswd},
@@ -59,31 +71,28 @@ sub DESTROY {
   $self->{dbh}->disconnect() if ($self->{dbh});
 }
 
-sub _read_auth_config {
-  $main::lxdebug->enter_sub();
-
-  my $self   = shift;
-
-  my $form   = $main::form;
-  my $locale = $main::locale;
+# form isn't loaded yet, so auth needs it's own error.
+sub mini_error {
+  $::lxdebug->show_backtrace();
 
-  my $code;
-  my $in = IO::File->new('config/authentication.pl', 'r');
-
-  if (!$in) {
-    $form->error($locale->text('The config file "config/authentication.pl" was not found.'));
+  my ($self, @msg) = @_;
+  if ($ENV{HTTP_USER_AGENT}) {
+    print Form->create_http_response(content_type => 'text/html');
+    print "<pre>", join ('<br>', @msg), "</pre>";
+  } else {
+    print STDERR "Error: @msg\n";
   }
+  ::end_of_request();
+}
 
-  while (<$in>) {
-    $code .= $_;
-  }
-  $in->close();
+sub _read_auth_config {
+  $main::lxdebug->enter_sub();
 
-  eval $code;
+  my $self = shift;
 
-  if ($@) {
-    $form->error($locale->text('The config file "config/authentication.pl" contained invalid Perl code:') . "\n" . $@);
-  }
+  map { $self->{$_} = $::lx_office_conf{authentication}->{$_} } keys %{ $::lx_office_conf{authentication} };
+  $self->{DB_config}   = $::lx_office_conf{'authentication/database'};
+  $self->{LDAP_config} = $::lx_office_conf{'authentication/ldap'};
 
   if ($self->{module} eq 'DB') {
     $self->{authenticator} = SL::Auth::DB->new($self);
@@ -93,17 +102,20 @@ sub _read_auth_config {
   }
 
   if (!$self->{authenticator}) {
-    $form->error($locale->text('No or an unknown authenticantion module specified in "config/authentication.pl".'));
+    my $locale = Locale->new('en');
+    $self->mini_error($locale->text('No or an unknown authenticantion module specified in "config/lx_office.conf".'));
   }
 
   my $cfg = $self->{DB_config};
 
   if (!$cfg) {
-    $form->error($locale->text('config/authentication.pl: Key "DB_config" is missing.'));
+    my $locale = Locale->new('en');
+    $self->mini_error($locale->text('config/lx_office.conf: Key "DB_config" is missing.'));
   }
 
   if (!$cfg->{host} || !$cfg->{db} || !$cfg->{user}) {
-    $form->error($locale->text('config/authentication.pl: Missing parameters in "DB_config". Required parameters are "host", "db" and "user".'));
+    my $locale = Locale->new('en');
+    $self->mini_error($locale->text('config/lx_office.conf: Missing parameters in "authentication/database". Required parameters are "host", "db" and "user".'));
   }
 
   $self->{authenticator}->verify_config();
@@ -134,11 +146,11 @@ sub authenticate_root {
 sub authenticate {
   $main::lxdebug->enter_sub();
 
-  my $self = shift;
+  my ($self, $login, $password) = @_;
 
   $main::lxdebug->leave_sub();
 
-  my $result = $self->{authenticator}->authenticate(@_);
+  my $result = $login ? $self->{authenticator}->authenticate($login, $password) : ERR_USER;
   return OK if $result eq OK;
   sleep 5;
   return $result;
@@ -164,13 +176,13 @@ sub dbconnect {
 
   $main::lxdebug->message(LXDebug->DEBUG1, "Auth::dbconnect DSN: $dsn");
 
-  $self->{dbh} = DBI->connect($dsn, $cfg->{user}, $cfg->{password}, { pg_enable_utf8 => $::locale->is_utf8, AutoCommit => 0 });
+  $self->{dbh} = SL::DBConnect->connect($dsn, $cfg->{user}, $cfg->{password}, { pg_enable_utf8 => $::locale->is_utf8, AutoCommit => 1 });
 
   if (!$may_fail && !$self->{dbh}) {
     $main::form->error($main::locale->text('The connection to the authentication database failed:') . "\n" . $DBI::errstr);
   }
 
-  $main::lxdebug->leave_sub();
+  $main::lxdebug->leave_sub(2);
 
   return $self->{dbh};
 }
@@ -239,12 +251,12 @@ sub create_database {
 
   $main::lxdebug->message(LXDebug->DEBUG1(), "Auth::create_database DSN: $dsn");
 
-  my $charset    = $main::dbcharset;
+  my $charset    = $::lx_office_conf{system}->{dbcharset};
   $charset     ||= Common::DEFAULT_CHARSET;
   my $encoding   = $Common::charset_to_db_encoding{$charset};
   $encoding    ||= 'UNICODE';
 
-  my $dbh        = DBI->connect($dsn, $params{superuser}, $params{superuser_password}, { pg_enable_utf8 => $charset =~ m/^utf-?8$/i });
+  my $dbh        = SL::DBConnect->connect($dsn, $params{superuser}, $params{superuser_password}, { pg_enable_utf8 => $charset =~ m/^utf-?8$/i });
 
   if (!$dbh) {
     $main::form->error($main::locale->text('The connection to the template database failed:') . "\n" . $DBI::errstr);
@@ -282,11 +294,11 @@ sub create_tables {
   my $self = shift;
   my $dbh  = $self->dbconnect();
 
-  my $charset    = $main::dbcharset;
+  my $charset    = $::lx_office_conf{system}->{dbcharset};
   $charset     ||= Common::DEFAULT_CHARSET;
 
   $dbh->rollback();
-  User->process_query($main::form, $dbh, 'sql/auth_db.sql', undef, $charset);
+  SL::DBUpgrade2->new(form => $::form)->process_query($dbh, 'sql/auth_db.sql', undef, $charset);
 
   $main::lxdebug->leave_sub();
 }
@@ -304,6 +316,8 @@ sub save_user {
 
   my ($sth, $query, $user_id);
 
+  $dbh->begin_work;
+
   $query     = qq|SELECT id FROM auth."user" WHERE login = ?|;
   ($user_id) = selectrow_query($form, $dbh, $query, $login);
 
@@ -424,11 +438,14 @@ sub delete_user {
   my $form  = $main::form;
 
   my $dbh   = $self->dbconnect();
+
+  $dbh->begin_work;
+
   my $query = qq|SELECT id FROM auth."user" WHERE login = ?|;
 
   my ($id)  = selectrow_query($form, $dbh, $query, $login);
 
-  return $main::lxdebug->leave_sub() if (!$id);
+  $dbh->rollback and return $main::lxdebug->leave_sub() if (!$id);
 
   do_query($form, $dbh, qq|DELETE FROM auth.user_group WHERE user_id = ?|, $id);
   do_query($form, $dbh, qq|DELETE FROM auth.user_config WHERE user_id = ?|, $id);
@@ -472,7 +489,7 @@ sub restore_session {
   if (!$cookie || $cookie->{is_expired} || ($cookie->{ip_address} ne $ENV{REMOTE_ADDR})) {
     $self->destroy_session();
     $main::lxdebug->leave_sub();
-    return SESSION_EXPIRED;
+    return $cookie ? SESSION_EXPIRED : SESSION_NONE;
   }
 
   $query = qq|SELECT sess_key, sess_value FROM auth.session_content WHERE session_id = ?|;
@@ -480,7 +497,10 @@ sub restore_session {
 
   while (my $ref = $sth->fetchrow_hashref()) {
     $self->{SESSION}->{$ref->{sess_key}} = $ref->{sess_value};
-    $form->{$ref->{sess_key}}            = $ref->{sess_value} if (!defined $form->{$ref->{sess_key}});
+    next if defined $form->{$ref->{sess_key}};
+
+    my $params                = $self->_load_value($ref->{sess_value});
+    $form->{$ref->{sess_key}} = $params->{data} if $params->{auto_restore} || $params->{simple};
   }
 
   $sth->finish();
@@ -490,6 +510,29 @@ sub restore_session {
   return SESSION_OK;
 }
 
+sub _load_value {
+  my ($self, $value) = @_;
+
+  return { simple => 1, data => $value } if $value !~ m/^---/;
+
+  my %params = ( simple => 1 );
+  eval {
+    my $data = YAML::Load($value);
+
+    if (ref $data eq 'HASH') {
+      map { $params{$_} = $data->{$_} } keys %{ $data };
+      $params{simple} = 0;
+
+    } else {
+      $params{data}   = $data;
+    }
+
+    1;
+  } or $params{data} = $value;
+
+  return \%params;
+}
+
 sub destroy_session {
   $main::lxdebug->enter_sub();
 
@@ -498,6 +541,8 @@ sub destroy_session {
   if ($session_id) {
     my $dbh = $self->dbconnect();
 
+    $dbh->begin_work;
+
     do_query($main::form, $dbh, qq|DELETE FROM auth.session_content WHERE session_id = ?|, $session_id);
     do_query($main::form, $dbh, qq|DELETE FROM auth.session WHERE id = ?|, $session_id);
 
@@ -516,6 +561,9 @@ sub expire_sessions {
   my $self  = shift;
 
   my $dbh   = $self->dbconnect();
+
+  $dbh->begin_work;
+
   my $query =
     qq|DELETE FROM auth.session_content
        WHERE session_id IN
@@ -561,47 +609,167 @@ sub create_or_refresh_session {
   $form  = $main::form;
   $dbh   = $self->dbconnect();
 
+  $dbh->begin_work;
+  do_query($::form, $dbh, qq|LOCK auth.session_content|);
+
   $query = qq|SELECT id FROM auth.session WHERE id = ?|;
 
   ($id)  = selectrow_query($form, $dbh, $query, $session_id);
 
   if ($id) {
     do_query($form, $dbh, qq|UPDATE auth.session SET mtime = now() WHERE id = ?|, $session_id);
-    do_query($form, $dbh, qq|DELETE FROM auth.session_content WHERE session_id = ?|, $session_id);
 
   } else {
     do_query($form, $dbh, qq|INSERT INTO auth.session (id, ip_address, mtime) VALUES (?, ?, now())|, $session_id, $ENV{REMOTE_ADDR});
 
   }
 
-  $query = qq|INSERT INTO auth.session_content (session_id, sess_key, sess_value) VALUES (?, ?, ?)|;
-  $sth   = prepare_query($form, $dbh, $query);
+  $self->save_session($dbh);
 
-  foreach my $key (sort keys %{ $self->{SESSION} }) {
-    do_statement($form, $sth, $query, $session_id, $key, $self->{SESSION}->{$key});
-  }
-
-  $sth->finish();
   $dbh->commit();
 
   $main::lxdebug->leave_sub();
 }
 
+sub save_session {
+  my $self         = shift;
+  my $provided_dbh = shift;
+
+  my $dbh          = $provided_dbh || $self->dbconnect(1);
+
+  return unless $dbh;
+
+  $dbh->begin_work unless $provided_dbh;
+
+  do_query($::form, $dbh, qq|LOCK auth.session_content|);
+  do_query($::form, $dbh, qq|DELETE FROM auth.session_content WHERE session_id = ?|, $session_id);
+
+  if (%{ $self->{SESSION} }) {
+    my $query = qq|INSERT INTO auth.session_content (session_id, sess_key, sess_value) VALUES (?, ?, ?)|;
+    my $sth   = prepare_query($::form, $dbh, $query);
+
+    foreach my $key (sort keys %{ $self->{SESSION} }) {
+      do_statement($::form, $sth, $query, $session_id, $key, $self->{SESSION}->{$key});
+    }
+
+    $sth->finish();
+  }
+
+  $dbh->commit() unless $provided_dbh;
+}
+
 sub set_session_value {
   $main::lxdebug->enter_sub();
 
-  my $self  = shift;
+  my $self   = shift;
+  my %params = @_;
 
   $self->{SESSION} ||= { };
 
-  while (2 <= scalar @_) {
-    my $key   = shift;
-    my $value = shift;
-
-    $self->{SESSION}->{$key} = $value;
+  while (my ($key, $value) = each %params) {
+    $self->{SESSION}->{ $key } = YAML::Dump(ref($value) eq 'HASH' ? { data => $value } : $value);
   }
 
   $main::lxdebug->leave_sub();
+
+  return $self;
+}
+
+sub delete_session_value {
+  $main::lxdebug->enter_sub();
+
+  my $self = shift;
+
+  $self->{SESSION} ||= { };
+  delete @{ $self->{SESSION} }{ @_ };
+
+  $main::lxdebug->leave_sub();
+
+  return $self;
+}
+
+sub get_session_value {
+  $main::lxdebug->enter_sub();
+
+  my $self   = shift;
+  my $params = $self->{SESSION} ? $self->_load_value($self->{SESSION}->{ $_[0] }) : {};
+
+  $main::lxdebug->leave_sub();
+
+  return $params->{data};
+}
+
+sub create_unique_sesion_value {
+  my ($self, $value, %params) = @_;
+
+  $self->{SESSION} ||= { };
+
+  my @now                   = gettimeofday();
+  my $key                   = "$$-" . ($now[0] * 1000000 + $now[1]) . "-";
+  $self->{unique_counter} ||= 0;
+
+  $self->{unique_counter}++ while exists $self->{SESSION}->{$key . $self->{unique_counter}};
+  $self->{unique_counter}++;
+
+  $value  = { expiration => $params{expiration} ? ($now[0] + $params{expiration}) * 1000000 + $now[1] : undef,
+              no_auto    => !$params{auto_restore},
+              data       => $value,
+            };
+
+  $self->{SESSION}->{$key . $self->{unique_counter}} = YAML::Dump($value);
+
+  return $key . $self->{unique_counter};
+}
+
+sub save_form_in_session {
+  my ($self, %params) = @_;
+
+  my $form        = delete($params{form}) || $::form;
+  my $non_scalars = delete $params{non_scalars};
+  my $data        = {};
+
+  my %skip_keys   = map { ( $_ => 1 ) } (qw(login password stylesheet version titlebar), @{ $params{skip_keys} || [] });
+
+  foreach my $key (grep { !$skip_keys{$_} } keys %{ $form }) {
+    $data->{$key} = $form->{$key} if !ref($form->{$key}) || $non_scalars;
+  }
+
+  return $self->create_unique_sesion_value($data, %params);
+}
+
+sub restore_form_from_session {
+  my ($self, $key, %params) = @_;
+
+  my $data = $self->get_session_value($key);
+  return $self unless $data;
+
+  my $form    = delete($params{form}) || $::form;
+  my $clobber = exists $params{clobber} ? $params{clobber} : 1;
+
+  map { $form->{$_} = $data->{$_} if $clobber || !exists $form->{$_} } keys %{ $data };
+
+  return $self;
+}
+
+sub expire_session_keys {
+  my ($self) = @_;
+
+  $self->{SESSION} ||= { };
+
+  my @now = gettimeofday();
+  my $now = $now[0] * 1000000 + $now[1];
+
+  $self->delete_session_value(map  { $_->[0]                                                 }
+                              grep { $_->[1]->{expiration} && ($now > $_->[1]->{expiration}) }
+                              map  { [ $_, $self->_load_value($self->{SESSION}->{$_}) ]      }
+                              keys %{ $self->{SESSION} });
+
+  return $self;
+}
+
+sub _has_expiration {
+  my ($value) = @_;
+  return (ref $value eq 'HASH') && exists($value->{expiration}) && $value->{data};
 }
 
 sub set_cookie_environment_variable {
@@ -768,6 +936,8 @@ sub save_group {
   my $form  = $main::form;
   my $dbh   = $self->dbconnect();
 
+  $dbh->begin_work;
+
   my ($query, $sth, $row, $rights);
 
   if (!$group->{id}) {
@@ -810,9 +980,10 @@ sub delete_group {
   my $self = shift;
   my $id   = shift;
 
-  my $form = $main::from;
+  my $form = $main::form;
 
   my $dbh  = $self->dbconnect();
+  $dbh->begin_work;
 
   do_query($form, $dbh, qq|DELETE FROM auth.user_group WHERE group_id = ?|, $id);
   do_query($form, $dbh, qq|DELETE FROM auth.group_rights WHERE group_id = ?|, $id);
@@ -993,3 +1164,93 @@ sub load_rights_for_user {
 }
 
 1;
+__END__
+
+=pod
+
+=encoding utf8
+
+=head1 NAME
+
+SL::Auth - Authentication and session handling
+
+=head1 FUNCTIONS
+
+=over 4
+
+=item C<set_session_value %values>
+
+Store all key/value pairs in C<%values> in the session. All of these
+values are copied back into C<$::form> in the next request
+automatically.
+
+The values can be any Perl structure. They are stored as YAML dumps.
+
+=item C<get_session_value $key>
+
+Retrieve a value from the session. Returns C<undef> if the value
+doesn't exist.
+
+=item C<create_unique_sesion_value $value, %params>
+
+Create a unique key in the session and store C<$value>
+there.
+
+If C<$params{expiration}> is set then it is interpreted as a number of
+seconds after which the value is removed from the session. It will
+never expire if that parameter is falsish.
+
+If C<$params{auto_restore}> is trueish then the value will be copied
+into C<$::form> upon the next request automatically. It defaults to
+C<false> and has therefore different behaviour than
+L</set_session_value>.
+
+Returns the key created in the session.
+
+=item C<expire_session_keys>
+
+Removes all keys from the session that have an expiration time set and
+whose expiration time is in the past.
+
+=item C<save_session>
+
+Stores the session values in the database. This is the only function
+that actually stores stuff in the database. Neither the various
+setters nor the deleter access the database.
+
+=item <save_form_in_session %params>
+
+Stores the content of C<$params{form}> (default: C<$::form>) in the
+session using L</create_unique_sesion_value>.
+
+If C<$params{non_scalars}> is trueish then non-scalar values will be
+stored as well. Default is to only store scalar values.
+
+The following keys will never be saved: C<login>, C<password>,
+C<stylesheet>, C<titlebar>, C<version>. Additional keys not to save
+can be given as an array ref in C<$params{skip_keys}>.
+
+Returns the unique key under which the form is stored.
+
+=item <restore_form_from_session $key, %params>
+
+Restores the form from the session into C<$params{form}> (default:
+C<$::form>).
+
+If C<$params{clobber}> is falsish then existing values with the same
+key in C<$params{form}> will not be overwritten. C<$params{clobber}>
+is on by default.
+
+Returns C<$self>.
+
+=back
+
+=head1 BUGS
+
+Nothing here yet.
+
+=head1 AUTHOR
+
+Moritz Bunkus E<lt>m.bunkus@linet-services.deE<gt>
+
+=cut