X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=cgi-auth-flexible.git;a=blobdiff_plain;f=cgi-auth-flexible.pm;h=382b845ddc0c45016c9b004fac989b374659f2eb;hp=e5b89244476da131f03615daf19a367b6c12c0ac;hb=c8a519df1b5ed6607a02be9394bf9c80bb06840d;hpb=031ab04359164ef2e3d311e61637491479e6098d;ds=sidebyside diff --git a/cgi-auth-flexible.pm b/cgi-auth-flexible.pm index e5b8924..382b845 100644 --- a/cgi-auth-flexible.pm +++ b/cgi-auth-flexible.pm @@ -18,7 +18,7 @@ # along with this program. If not, see . use strict; -use warnings; +use warnings FATAL => 'all'; package CGI::Auth::Flexible; require Exporter; @@ -92,7 +92,8 @@ sub login_ok_password ($$) { my $username_params = $r->{S}{username_param_names}; my $username = $r->_ch('get_param',$username_params->[0]); my $password = $r->_rp('password_param_name'); - return $r->_ch('username_password_ok', $username, $password); + return undef unless $r->_ch('username_password_ok', $username, $password); + return $username; } sub do_redirect_cgi ($$$$) { @@ -104,39 +105,63 @@ sub do_redirect_cgi ($$$$) { '', $r->_gt("If you aren't redirected, click to continue."), "", - $c->_ch('gen_end_html')); + $r->_ch('gen_end_html')); } -sub gen_plain_login_form ($$) { - my ($c,$r, $params) = @_; +sub gen_some_form ($$) { + my ($r, $params, $bodyfn) = @_; + # Calls $bodyfn->($c,$r) which returns @formbits + my $c = $r->{Cgi}; my @form; push @form, ('
'. - ''); - my $sz = 'size="'.$r->{S}{form_entry_size}.'"'; - foreach my $up (@{ $r->{S}{username_param_names}}) { - push @form, ('', - ''); - } - push @form, ('', - ''); - push @form, ('', - '
',$r->_gt(ucfirst $up),'
'.$r->_gt('Password').'
', - '
'); + escapeHTML($r->_ch('get_url')).'">'); + push @form, $bodyfn->($c,$r); foreach my $n (keys %$params) { - push @form, (''); + foreach my $val (@{ $params->{$n} }) { + push @form, (''); + } } push @form, ('
'); return join "\n", @form; } -sub gen_login_link ($$) { +sub gen_plain_login_form ($$) { + my ($c,$r, $params) = @_; + return $r->gen_some_form($params, sub { + my @form; + push @form, (''); + my $sz = 'size="'.$r->{S}{form_entry_size}.'"'; + foreach my $up (@{ $r->{S}{username_param_names}}) { + push @form, ('', + ''); + } + push @form, ('', + ''); + push @form, ('', + '
',$r->_gt(ucfirst $up),'
'.$r->_gt('Password').'
', + '
'); + return @form; + }); +} + +sub gen_postmainpage_form ($$$) { + my ($c,$r, $params) = @_; + return $r->gen_some_form($params, sub { + my @form; + push @form, (''); + return @form; + }); +} + +sub gen_plain_login_link ($$) { my ($c,$r, $params) = @_; my $url = $r->url_with_query_params($params); return (''. @@ -164,6 +189,7 @@ sub new_verifier { login_form_timeout => 3600, # seconds key_rollover => 86400, # seconds assoc_param_name => 'caf_assochash', + dummy_param_name => 'caf_dummy', cookie_name => "caf_assocsecret", password_param_name => 'password', username_param_names => [qw(username)], @@ -192,6 +218,7 @@ sub new_verifier { gen_end_html => sub { $_[0]->end_html(); }, gen_login_form => \&gen_plain_login_form, gen_login_link => \&gen_plain_login_link, + gen_postmainpage_form => \&gen_postmainpage_form, gettext => sub { gettext($_[2]); }, print => sub { print $_[2] or die $!; }, }, @@ -278,7 +305,7 @@ print STDERR "DT fn eval ok\n"; print STDERR "DT commit ok\n"; 1; }) { -print STDERR "DT commit eval ok $rv\n"; +print STDERR "DT commit eval ok ",Dumper($rv); return $rv; } print STDERR "DT commit throw?\n"; @@ -464,7 +491,9 @@ sub _check_divert_core ($) { my $cookh = defined $cooks ? $r->hash($cooks) : undef; my ($cookt,$cooku) = $r->_identify($cookh, $cooks); - my $parmt = $r->_identify($parmh, undef); + my $parms = (defined $cooks && defined $parmh && $parmh eq $cookh) + ? $cooks : undef; + my ($parmt) = $r->_identify($parmh, $parms); print STDERR "_c_d_c cookt=$cookt parmt=$parmt\n"; @@ -534,13 +563,13 @@ sub _check_divert_core ($) { my $news = $r->_fresh_secret(); if ($meth eq 'GET') { return ({ Kind => 'LOGIN-INCOMINGLINK', - Message => "You need to log in again.", + Message => "You need to log in.", CookieSecret => $news, Params => $r->_chain_params() }); } else { $r->_db_revoke($parmh); return ({ Kind => 'LOGIN-FRESH', - Message => "You need to log in again.", + Message => "You need to log in.", CookieSecret => $news, Params => { } }); } @@ -594,7 +623,9 @@ sub _identify ($$) { # where $t is one of "t" "y" "n", or "" (for -) # either $s must be undef, or $h eq $r->hash($s) +print STDERR "_identify\n"; return '' unless defined $h && length $h; +print STDERR "_identify h=$h s=".(defined $s ? $s : '')."\n"; my $dbh = $r->{Dbh}; @@ -606,6 +637,7 @@ sub _identify ($$) { " FROM $r->{S}{assocdb_table}". " WHERE assochash = ?", {}, $h); if (defined $row) { +print STDERR "_identify h=$h s=$s YES @$row\n"; my ($nusername, $nlast) = @$row; return ('y', $nusername); } @@ -618,15 +650,20 @@ sub _identify ($$) { my ($keyt, $signature, $message, $noncet, $nonce) = $s =~ m/^(\d+)\.(\w+)\.((\d+)\.(\w+))$/ or die; - return 'n' if time > $noncet + $r->{S}{form_timeout}; + return 'n' if time > $noncet + $r->{S}{login_form_timeout}; + +print STDERR "_identify noncet=$noncet ok\n"; my $keys = $r->_open_keys(); while (my ($rkeyt, $rkey, $line) = $r->_read_key($keys)) { +print STDERR "_identify search rkeyt=$rkeyt rkey=$rkey\n"; last if $rkeyt < $keyt; # too far down in the file my $trysignature = $r->_hmac($rkey, $message); +print STDERR "_identify search rkeyt=$rkeyt rkey=$rkey trysig=$trysignature\n"; return 't' if $trysignature eq $signature; } # oh well +print STDERR "_identify NO\n"; $keys->error and die $!; return 'n'; @@ -647,7 +684,7 @@ sub _db_record_login_ok ($$$) { $r->_db_revoke($h); my $dbh = $r->{Dbh}; $dbh->do("INSERT INTO $r->{S}{assocdb_table}". - " (associd, username, last) VALUES (?,?,?)", {}, + " (assochash, username, last) VALUES (?,?,?)", {}, $h, $user, time); } @@ -678,6 +715,7 @@ sub get_username ($) { sub url_with_query_params ($$) { my ($r, $params) = @_; +print STDERR "PARAMS ",Dumper($params); my $uri = URI->new($r->_ch('get_url')); $uri->query_form(flatten_params($params)); return $uri->as_string(); @@ -706,16 +744,16 @@ sub check_ok ($) { my $cookie = $r->construct_cookie($cookiesecret); if (defined $cookiesecret) { - $params->{$r->{S}{assoc_param_name}} = $r->hash($cookiesecret); + $params->{$r->{S}{assoc_param_name}} = [ $r->hash($cookiesecret) ]; } if ($kind =~ m/^REDIRECT-/) { # for redirects, we honour stored NextParams and SetCookie, # as we would for non-divert if ($kind eq 'REDIRECT-LOGGEDOUT') { - $params->{$r->{S}{loggedout_param_names}[0]} = 1; + $params->{$r->{S}{loggedout_param_names}[0]} = [ 1 ]; } elsif ($kind eq 'REDIRECT-LOGOUT') { - $params->{$r->{S}{logout_param_names}[0]} = 1; + $params->{$r->{S}{logout_param_names}[0]} = [ 1 ]; } elsif ($kind eq 'REDIRECT-LOGGEDIN') { } else { die; @@ -733,7 +771,11 @@ sub check_ok ($) { } elsif ($kind =~ m/^SMALLPAGE-/) { $title = $r->_gt('Not logged in'); push @body, $r->_gt($divert->{Message}); - push @body, $r->_ch('gen_login_link'); + push @body, $r->_ch('gen_login_link', $params); + } elsif ($kind =~ m/^MAINPAGEONLY$/) { + $title = $r->_gt('Entering secure site.'); + push @body, $r->_gt($divert->{Message}); + push @body, $r->_ch('gen_postmainpage_form', $params); } else { die $kind; } @@ -873,7 +915,7 @@ print STDERR "hmac $alg $base $digest\n"; sub hash ($$) { my ($r, $message) = @_; my $alg = $r->{S}{hash_algorithm}; -print STDERR "hash $alg"; +print STDERR "hash $alg\n"; my $digest = new Digest $alg; $digest->add($message); return $digest->hexdigest(); @@ -884,12 +926,17 @@ sub _assert_checked ($) { die "unchecked" unless exists $r->{Divert}; } +sub _must_be_post ($) { + my ($r) = @_; + my $meth = $r->_ch('get_method'); + die "mutating non-POST" if $meth ne 'POST'; +} + sub check_mutate ($) { my ($r) = @_; $r->_assert_checked(); die if $r->{Divert}; - my $meth = $r->_ch('get_method'); - die "mutating non-POST" if $meth ne 'POST'; + $r->_must_be_post(); } #---------- output ---------- @@ -903,7 +950,7 @@ sub secret_cookie_val ($) { sub secret_hidden_val ($) { my ($r) = @_; $r->_assert_checked(); - return defined $r->{AssocSecret} ? r->hash($r->{AssocSecret}) : ''; + return defined $r->{AssocSecret} ? $r->hash($r->{AssocSecret}) : ''; } sub secret_hidden_html ($) {