# along with this program. If not, see <http://www.gnu.org/licenses/>.
use strict;
-use warnings;
+use warnings FATAL => 'all';
package CGI::Auth::Flexible;
require Exporter;
@EXPORT = qw();
%EXPORT_TAGS = ( ); # eg: TAG => [ qw!name1 name2! ],
- @EXPORT_OK = qw(setup);
+ @EXPORT_OK = qw();
}
our @EXPORT_OK;
my ($p) = @_;
my @p;
foreach my $k (keys %$p) {
+ next if $k eq '';
foreach my $v (@{ $p->{$k} }) {
push @p, $k, $v;
}
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);
+ my $error = $r->_ch('username_password_error', $username, $password);
+ return defined($error) ? (undef,$error) : ($username,undef);
}
sub do_redirect_cgi ($$$$) {
'<a href="'.escapeHTML($new_url).'">',
$r->_gt("If you aren't redirected, click to continue."),
"</a>",
- $c->_ch('gen_end_html'));
+ $r->_ch('gen_end_html'));
}
-sub gen_plain_login_form ($$) {
- my ($c,$r, $params) = @_;
+sub gen_some_form ($$) {
+ my ($r, $params, $bodyfn) = @_;
+ # Calls $bodyfn->($c,$r) which returns @formbits
+ my $c = $r->{Cgi};
my @form;
+ my $pathinfo = '';
+ $pathinfo .= $params->{''}[0] if $params->{''};
push @form, ('<form method="POST" action="'.
- escapeHTML($r->_ch('get_url')).'">'.
- '<table>');
- my $sz = 'size="'.$r->{S}{form_entry_size}.'"';
- foreach my $up (@{ $r->{S}{username_param_names}}) {
- push @form, ('<tr><td>',$r->_gt(ucfirst $up),'</td>',
- '<td><input type="text" '.$sz.
- ' name='.$up.'></td></tr>');
- }
- push @form, ('<tr><td>'.$r->_gt('Password').'</td>',
- '<td><input type="password" '.$sz.
- ' name="'.$r->{S}{password_param_name}.'"></td></tr>');
- push @form, ('<tr><td colspan="2">',
- '<input type="submit"'.
- ' name="'.$r->{S}{login_submit_name}[0].'"'.
- ' value="'.$r->_gt('Login').'"></td></tr>',
- '</table>');
+ escapeHTML($r->_ch('get_url').$pathinfo).'">');
+ push @form, $bodyfn->($c,$r);
foreach my $n (keys %$params) {
- push @form, ('<input type="hidden"'.
- ' name="'.$n.'"'.
- ' value="'.$params->{$n}.'">');
+ next if $n eq '';
+ foreach my $val (@{ $params->{$n} }) {
+ push @form, ('<input type="hidden"'.
+ ' name="'.escapeHTML($n).'"'.
+ ' value="'.escapeHTML($val).'">');
+ }
}
push @form, ('</form>');
return join "\n", @form;
}
-sub gen_login_link ($$) {
+sub gen_plain_login_form ($$) {
+ my ($c,$r, $params) = @_;
+ return $r->gen_some_form($params, sub {
+ my @form;
+ push @form, ('<table>');
+ my $sz = 'size="'.$r->{S}{form_entry_size}.'"';
+ foreach my $up (@{ $r->{S}{username_param_names}}) {
+ push @form, ('<tr><td>',$r->_gt(ucfirst $up),'</td>',
+ '<td><input type="text" '.$sz.
+ ' name='.$up.'></td></tr>');
+ }
+ push @form, ('<tr><td>'.$r->_gt('Password').'</td>',
+ '<td><input type="password" '.$sz.
+ ' name="'.$r->{S}{password_param_name}.'"></td></tr>');
+ push @form, ('<tr><td colspan="2">',
+ '<input type="submit"'.
+ ' name="'.$r->{S}{dummy_param_name_prefix}.'login"'.
+ ' value="'.$r->_gt('Login').'"></td></tr>',
+ '</table>');
+ return @form;
+ });
+}
+
+sub gen_postmainpage_form ($$$) {
+ my ($c,$r, $params) = @_;
+ return $r->gen_some_form($params, sub {
+ my @form;
+ push @form, ('<input type="submit"',
+ ' name="'.$r->{S}{dummy_param_name_prefix}.'submit"'.
+ ' value="'.$r->_gt('Continue').'">');
+ return @form;
+ });
+}
+
+sub gen_plain_login_link ($$) {
my ($c,$r, $params) = @_;
my $url = $r->url_with_query_params($params);
return ('<a href="'.escapeHTML($url).'">'.
my $verifier = {
S => {
dir => undef,
+ assocdb_dbh => undef, # must have AutoCommit=0, RaiseError=1
assocdb_path => 'caf-assocs.db',
keys_path => 'caf-keys',
assocdb_dsn => undef,
login_form_timeout => 3600, # seconds
key_rollover => 86400, # seconds
assoc_param_name => 'caf_assochash',
+ dummy_param_name_prefix => 'caf__',
cookie_name => "caf_assocsecret",
password_param_name => 'password',
username_param_names => [qw(username)],
form_entry_size => 60,
logout_param_names => [qw(caf_logout)],
- login_submit_name => [qw(caf_login)],
loggedout_param_names => [qw(caf_loggedout)],
promise_check_mutate => 0,
get_param => sub { $_[0]->param($_[2]) },
get_params => sub { $_[1]->get_params() },
+ get_path_info => sub { $_[0]->path_info() },
get_cookie => sub { $_[0]->cookie($_[1]->{S}{cookie_name}) },
get_method => sub { $_[0]->request_method() },
get_url => sub { $_[0]->url(); },
is_login => sub { defined $_[1]->_rp('password_param_name') },
login_ok => \&login_ok_password,
- username_password_ok => sub { die },
+ username_password_error => sub { die },
is_logout => sub { $_[1]->has_a_param('logout_param_names') },
is_loggedout => sub { $_[1]->has_a_param('loggedout_param_names') },
is_page => sub { return 1 },
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 $!; },
},
my $dbh = $v->{Dbh};
return $dbh if $dbh;
- $v->{S}{assocdb_dsn} ||= "dbi:SQLite:dbname=".$v->_get_path('assocdb');
- my $dsn = $v->{S}{assocdb_dsn};
-
- my $u = umask 077;
- $dbh = DBI->connect($dsn, $v->{S}{assocdb_user},
- $v->{S}{assocdb_password}, {
- AutoCommit => 0,
- RaiseError => 1,
- ShowErrorStatement => 1,
- });
- die "$dsn $! ?" unless $dbh;
+ $dbh = $v->{S}{assocdb_dbh};
+ if ($dbh) {
+ die if $dbh->{AutoCommit};
+ die unless $dbh->{RaiseError};
+ } else {
+ $v->{S}{assocdb_dsn} ||= "dbi:SQLite:dbname=".$v->_get_path('assocdb');
+ my $dsn = $v->{S}{assocdb_dsn};
+
+ my $u = umask 077;
+ $dbh = DBI->connect($dsn, $v->{S}{assocdb_user},
+ $v->{S}{assocdb_password}, {
+ AutoCommit => 0,
+ RaiseError => 1,
+ ShowErrorStatement => 1,
+ });
+ die "$dsn $! ?" unless $dbh;
+ }
$v->{Dbh} = $dbh;
$v->_db_setup_do("CREATE TABLE $v->{S}{assocdb_table} (".
my $retries = 10;
my $rv;
my $dbh = $v->{Dbh};
-print STDERR "DT entry\n";
+#print STDERR "DT entry\n";
for (;;) {
-print STDERR "DT loop\n";
+#print STDERR "DT loop\n";
if (!eval {
$rv = $fn->();
-print STDERR "DT fn ok\n";
+#print STDERR "DT fn ok\n";
1;
}) {
-print STDERR "DT fn error\n";
+#print STDERR "DT fn error\n";
{ local ($@); $dbh->rollback(); }
-print STDERR "DT fn throwing\n";
+#print STDERR "DT fn throwing\n";
die $@;
}
-print STDERR "DT fn eval ok\n";
+#print STDERR "DT fn eval ok\n";
if (eval {
$dbh->commit();
-print STDERR "DT commit 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";
+#print STDERR "DT commit throw?\n";
die $@ if !--$retries;
-print STDERR "DT loop again\n";
+#print STDERR "DT loop again\n";
}
}
-expires => '+'.$r->{S}{login_timeout}.'s',
-secure => $r->{S}{encrypted_only});
my $cookie = $c->cookie(@ca);
-print STDERR "CC $r $c $cooks $cookie (@ca).\n";
+#print STDERR "CC $r $c $cooks $cookie (@ca).\n";
return $cookie;
}
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";
+#print STDERR "_c_d_c cookt=$cookt parmt=$parmt\n";
if ($r->_ch('is_logout')) {
$r->_must_be_post();
$r->_db_revoke($cookh);
$r->_db_revoke($parmh);
return ({ Kind => 'REDIRECT-LOGGEDOUT',
- Message => "Logging out...",
+ Message => $r->_gt("Logging out..."),
CookieSecret => '',
Params => { } });
}
die unless $cookt;
die unless $parmt;
return ({ Kind => 'SMALLPAGE-LOGGEDOUT',
- Message => "You have been logged out.",
+ Message => $r->_gt("You have been logged out."),
CookieSecret => '',
Params => { } });
}
die unless $parmt;
if (!$cookt && $parmt eq 't') {
return ({ Kind => 'SMALLPAGE-NOCOOKIE',
- Message => "You do not seem to have cookies enabled. ".
- "You must enable cookies as we use them for login.",
- CookieSecret => $r->_fresh_secret(),
- Params => $r->_chain_params() })
+ Message => $r->_gt("You do not seem to have cookies".
+ " enabled. You must enable cookies".
+ " as we use them for login."),
+ CookieSecret => $r->_fresh_secret(),
+ Params => $r->chain_params() })
}
if (!$cookt || $cookt eq 'n' || $cookh ne $parmh) {
$r->_db_revoke($cookh);
return ({ Kind => 'LOGIN-STALE',
- Message => "Stale session; you need to log in again.",
+ Message => $r->_gt("Stale session;".
+ " you need to log in again."),
CookieSecret => $r->_fresh_secret(),
Params => { } })
}
die unless $parmt eq 't' || $parmt eq 'y';
- my $username = $r->_ch('login_ok');
+ my ($username, $login_errormessage) = $r->_ch('login_ok');
unless (defined $username && length $username) {
+ $login_errormessage = $r->_gt("Incorrect username/password.")
+ if !$login_errormessage;
return ({ Kind => 'LOGIN-BAD',
- Message => "Incorrect username/password.",
+ Message => $login_errormessage,
CookieSecret => $cooks,
- Params => $r->_chain_params() })
+ Params => $r->chain_params() })
}
$r->_db_record_login_ok($parmh,$username);
return ({ Kind => 'REDIRECT-LOGGEDIN',
- Message => "Logging in...",
+ Message => $r->_gt("Logging in..."),
CookieSecret => $cooks,
- Params => $r->_chain_params() });
+ Params => $r->chain_params() });
}
if ($cookt eq 't') {
$cookt = '';
my $news = $r->_fresh_secret();
if ($meth eq 'GET') {
return ({ Kind => 'LOGIN-INCOMINGLINK',
- Message => "You need to log in again.",
+ Message => $r->_gt("You need to log in."),
CookieSecret => $news,
- Params => $r->_chain_params() });
+ Params => $r->chain_params() });
} else {
$r->_db_revoke($parmh);
return ({ Kind => 'LOGIN-FRESH',
- Message => "You need to log in again.",
+ Message => $r->_gt("You need to log in."),
CookieSecret => $news,
Params => { } });
}
if (!$r->{S}{promise_check_mutate}) {
if ($meth ne 'POST') {
return ({ Kind => 'MAINPAGEONLY',
- Message => 'Entering via cross-site link.',
+ Message => $r->_gt('Entering via cross-site link.'),
CookieSecret => $cooks,
Params => { } });
# NB caller must then ignore params & path!
}
die unless $cookt eq 'y';
- die unless $parmt eq 'y';
- die unless $cookh eq $parmh;
+ unless ($r->{S}{promise_check_mutate} && $meth eq 'GET') {
+ die unless $parmt eq 'y';
+ die unless $cookh eq $parmh;
+ }
$r->{AssocSecret} = $cooks;
$r->{UserOK} = $cooku;
- print STDERR "C-D-C OK\n";
+#print STDERR "C-D-C OK\n";
return undef;
}
-sub _chain_params ($) {
+sub chain_params ($) {
my ($r) = @_;
my %p = %{ $r->_ch('get_params') };
foreach my $pncn (keys %{ $r->{S} }) {
delete $p{$name};
}
}
+ my $dummy_prefix = $r->{S}{dummy_param_name_prefix};
+ foreach my $name (grep /^$dummy_prefix/, keys %p) {
+ delete $p{$name};
+ }
+ die if exists $p{''};
+ $p{''} = [ $r->_ch('get_path_info') ];
return \%p;
}
# 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 : '<undef>')."\n";
my $dbh = $r->{Dbh};
" 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);
}
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 try=$trysignature\n";
return 't' if $trysignature eq $signature;
}
# oh well
+#print STDERR "_identify NO\n";
$keys->error and die $!;
return 'n';
$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);
}
my $dbh = $r->{Dbh};
$r->{Divert} = $r->_db_transaction(sub { $r->_check_divert_core(); });
$dbh->commit();
- print STDERR Dumper($r->{Divert});
+#print STDERR Dumper($r->{Divert});
return $r->{Divert};
}
sub url_with_query_params ($$) {
my ($r, $params) = @_;
+#print STDERR "PARAMS ",Dumper($params);
my $uri = URI->new($r->_ch('get_url'));
+ $uri->path($uri->path() . $params->{''}[0]) if $params->{''};
$uri->query_form(flatten_params($params));
return $uri->as_string();
}
my ($r, $cookie, @ha) = @_;
unshift @ha, qw(-type text/html);
push @ha, (-cookie => $cookie) if defined $cookie;
- print STDERR "_cgi_header_args ",join('|',@ha),".\n";
+#print STDERR "_cgi_header_args ",join('|',@ha),".\n";
return @ha;
}
my $params = $divert->{Params};
my $cookie = $r->construct_cookie($cookiesecret);
- if (defined $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;
return 0;
}
+ if (defined $cookiesecret) {
+ $params->{$r->{S}{assoc_param_name}} = [ $r->hash($cookiesecret) ];
+ }
+
my ($title, @body);
if ($kind =~ m/^LOGIN-/) {
$title = $r->_gt('Login');
- push @body, $r->_gt($divert->{Message});
+ push @body, $divert->{Message};
push @body, $r->_ch('gen_login_form', $params);
} elsif ($kind =~ m/^SMALLPAGE-/) {
$title = $r->_gt('Not logged in');
- push @body, $r->_gt($divert->{Message});
- push @body, $r->_ch('gen_login_link');
+ push @body, $divert->{Message};
+ push @body, $r->_ch('gen_login_link', $params);
+ } elsif ($kind =~ m/^MAINPAGEONLY$/) {
+ $title = $r->_gt('Entering secure site.');
+ push @body, $divert->{Message};
+ push @body, $r->_ch('gen_postmainpage_form', $params);
} else {
die $kind;
}
my $rsp = $r->{S}{random_source};
if (!$rsf) {
$v->{RandomHandle} = $rsf = new IO::File $rsp, '<' or die "$rsp $!";
-print STDERR "RH $rsf\n";
+#print STDERR "RH $rsf\n";
}
my $bin;
$!=0;
read($rsf,$bin,$bytes) == $bytes or die "$rsp $!";
my $out = unpack "H*", $bin;
- print STDERR "_random out $out\n";
+#print STDERR "_random out $out\n";
return $out;
}
sub _random_key ($) {
my ($r) = @_;
- print STDERR "_random_key\n";
+#print STDERR "_random_key\n";
my $bytes = ($r->{S}{secretbits} + 7) >> 3;
return $r->_random($bytes);
}
my ($r) = @_;
my $spath = $r->_get_path('keys');
for (;;) {
- print STDERR "_open_keys\n";
+#print STDERR "_open_keys\n";
my $keys = new IO::File $spath, 'r+';
if ($keys) {
- print STDERR "_open_keys open\n";
+#print STDERR "_open_keys open\n";
stat $keys or die $!; # NB must not disturb stat _
my $size = (stat _)[7];
my $age = time - (stat _)[9];
- print STDERR "_open_keys open size=$size age=$age\n";
+#print STDERR "_open_keys open size=$size age=$age\n";
return $keys
if $size && $age <= $r->{S}{key_rollover} / 2;
- print STDERR "_open_keys open bad\n";
+#print STDERR "_open_keys open bad\n";
}
# file doesn't exist, or is empty or too old
if (!$keys) {
- print STDERR "_open_keys closed\n";
+#print STDERR "_open_keys closed\n";
die "$spath $!" unless $!==&ENOENT;
# doesn't exist, so create it just so we can lock it
$keys = new IO::File $spath, 'a+';
die "$keys $!" unless $keys;
stat $keys or die $!; # NB must not disturb stat _
my $size = (stat _)[7];
- print STDERR "_open_keys created size=$size\n";
+#print STDERR "_open_keys created size=$size\n";
next if $size; # oh someone else has done it, reopen and read it
}
# file now exists is empty or too old, we must try to replace it
flock $keys, LOCK_EX or die "$spath $!";
stat $spath or die "$spath $!";
my $path_inum = (stat _)[1];
- print STDERR "_open_keys locked our=$our_inum path=$path_inum\n";
+#print STDERR "_open_keys locked our=$our_inum path=$path_inum\n";
next if $our_inum != $path_inum; # someone else has done it
# We now hold the lock!
- print STDERR "_open_keys creating\n";
+#print STDERR "_open_keys creating\n";
my $newkeys = new IO::Handle;
sysopen $newkeys, "$spath.new", O_CREAT|O_TRUNC|O_WRONLY, 0600
or die "$spath.new $!";
# we add the new key to the front which means it's always sorted
print $newkeys time, ' ', $r->_random_key(), "\n" or die $!;
while (my ($gen,$key,$line) = $r->_read_key($keys)) {
- print STDERR "_open_keys copy1\n";
+#print STDERR "_open_keys copy1\n";
print $newkeys, $line or die $!;
}
$keys->error and die $!;
close $newkeys or die "$spath.new $!";
rename "$spath.new", "$spath" or die "$spath: $!";
- print STDERR "_open_keys installed\n";
+#print STDERR "_open_keys installed\n";
# that rename effective unlocks, since it makes the name refer
# to the new file which we haven't locked
# we go round again opening the file at the beginning
sub _fresh_secret ($) {
my ($r) = @_;
- print STDERR "_fresh_secret\n";
+#print STDERR "_fresh_secret\n";
my $keys = $r->_open_keys();
my ($keyt, $key) = $r->_read_key($keys);
my $signature = $r->_hmac($key, $message);
my $secret = "$keyt.$signature.$message";
- print STDERR "FRESH $secret\n";
+#print STDERR "FRESH $secret\n";
return $secret;
}
my ($r, $keyhex, $message) = @_;
my $keybin = pack "H*", $keyhex;
my $alg = $r->{S}{hash_algorithm};
-print STDERR "hmac $alg\n";
+#print STDERR "hmac $alg\n";
my $base = new Digest $alg;
-print STDERR "hmac $alg $base\n";
+#print STDERR "hmac $alg $base\n";
my $digest = new Digest::HMAC $keybin, $base;
-print STDERR "hmac $alg $base $digest\n";
+#print STDERR "hmac $alg $base $digest\n";
$digest->add($message);
return $digest->hexdigest();
}
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();
die "unchecked" unless exists $r->{Divert};
}
+sub _is_post ($) {
+ my ($r) = @_;
+ my $meth = $r->_ch('get_method');
+ return $meth eq 'POST';
+}
+
+sub _must_be_post ($) {
+ 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';
+ $r->_must_be_post();
+}
+
+sub mutate_ok ($) {
+ my ($r) = @_;
+ $r->_assert_checked();
+ die if $r->{Divert};
+ return $r->_is_post();
}
#---------- output ----------
sub secret_hidden_val ($) {
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 ($) {
~ian / cgi-auth-flexible.git / blobdiff