/
Kinza.pm
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Kinza.pm
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package Kinza;
use 5.010;
use Dancer2;
use Dancer2::Plugin::DBIC;
use Dancer2::Plugin::Email;
use Dancer2::Plugin::Passphrase;
use DateTime;
use DateTime::Format::Strptime;
use Kinza::Reports;
our $VERSION = '0.1';
prefix undef;
my @envs = qw[ KZ_USER KZ_PASS KZ_HOST
KZ_DOMAIN KZ_REG_OPEN KZ_SEL_OPEN ];
if (my @missing = grep { ! defined $ENV{$_} } @envs) {
die 'You must set ', join(', ', @missing[0 .. $#missing - 1]),
(@missing > 1 ? ' and ' : ''), $missing[-1];
}
my $cfg = config->{plugins};
$cfg->{DBIC}{default}{user} = $ENV{KZ_USER};
$cfg->{DBIC}{default}{password} = $ENV{KZ_PASS};
my %rs = map {
$_ => schema()->resultset($_)
} qw[Year Student Term Course Presentation PasswordReset];
my $dt_p = DateTime::Format::Strptime->new(
pattern => '%Y-%m-%dT%H:%M',
time_zone => 'Europe/London',
on_error => 'croak',
);
my $now = DateTime->now(time_zone => 'Europe/London');
my $reg_live = $dt_p->parse_datetime($ENV{KZ_REG_OPEN});
my $sel_live = $dt_p->parse_datetime($ENV{KZ_SEL_OPEN});
my %private = map { $_ => 1 } qw[/submit];
my %open = map { $_ => 1, "$_/" => 1 } qw[/closed /years /reports /courses];
my %reg_open = (%open, map { $_ => 1 } qw[/register]);
hook before => sub {
if ($now < $reg_live && ! $open{request->path_info}) {
forward '/closed';
}
if (session('name') && $now < $sel_live && ! $open{request->path_info}) {
forward '/closed';
}
if ($private{request->path_info} and ! session('user')) {
session 'goto' => request->path_info;
request->path_info('/login');
}
};
hook before_template => sub {
my $params = shift;
$params->{email} = session('email');
$params->{domain} = $ENV{KZ_DOMAIN};
$params->{reg_live} = $reg_live;
$params->{sel_live} = $sel_live;
if (session('email') and ! $params->{student}) {
$params->{student} = $rs{Student}->find({
email => session('email')
}, {
prefetch => { form => 'year' },
});
}
if (!session('email')) {
delete $params->{student};
}
};
get '/closed' => sub {
if ($now < $reg_live) {
return template 'comingsoon';
} else {
return template 'sel_closed';
}
};
get '/' => sub {
my $error = session('error');
session 'error' => undef;
my $choices = session('choices');
session 'choices' => undef;
my $student;
if (session('email')) {
$student = $rs{Student}->find({
email => session('email'),
}, {
prefetch => [{ attendances => 'presentation' }, { form => 'year' } ],
});
}
if (!keys %$choices and $student) {
$choices = $student->choices;
}
my @terms = $rs{Term}->search({}, {
prefetch => { presentations => ['course', 'attendances'] },
order_by => 'seq',
})->all;
my %term_course;
foreach my $t (@terms) {
foreach my $p ($t->presentations) {
$term_course{$t->id}{$p->course_id} = $p;
}
}
template 'index', {
error => $error,
choices => $choices,
student => $student,
terms => \@terms,
term_course => \%term_course,
};
};
post '/save' => sub {
my %params = params;
session 'choices' => { reverse %params };
# Check that student has signed up for all terms
# And that all their courses are different
# And that all courses are still available
my $terms = 0;
my %courses;
my @unavailable;
my @pres = $rs{Presentation}->search({
'me.id' => [ values %params],
}, {
prefetch => [ 'course', 'term', 'attendances' ],
});
foreach my $pres (@pres) {
$terms += $pres->number_of_terms;
$courses{$pres->course->id} = 1;
push @unavailable, $pres->course->title . ' (' . $pres->term->name . ')'
if $pres->full;
}
if ($terms != $rs{Term}->count) {
session 'error' => 'You must register for three terms of courses';
return redirect '/';
}
if (keys %courses != keys %params) {
session 'error' => 'You must register for a different course each term';
return redirect '/';
}
if (@unavailable) {
session 'error', 'The following courses are full for your chosen terms:' .
'<ul><li>' . join('</li><li>', @unavailable) . '</li></ul>';
return redirect '/';
}
# Save the data
my $student = $rs{Student}->find({
email => session('email'),
});
schema->txn_do(sub {
$student->attendances->delete;
foreach (keys %params) {
$student->add_to_attendances({
presentation_id => $params{$_},
});
}
});
$student->discard_changes;
my $body = <<EO_EMAIL;
Dear @{[$student->name]},
Thank you for selecting your Kinza 2015/16 courses.
The courses you hace chosen are as follows:
EO_EMAIL
foreach ($student->sorted_attendances) {
$body .= '* ' . $_->presentation->term->name . ' / ' .
$_->presentation->course->title . "\n";
}
email {
from => 'admin@kinza.me',
to => $student->email,
subject => 'SCHS Kinza Selection',
body => $body,
};
template 'saved', { student => $student };
};
get '/dummies' => sub {
my @students = $rs{Student}->search({
verify => { '!=' => undef },
});
template 'dummies', { students => \@students };
};
get '/reports' => sub {
return redirect '/reports/';
};
get '/register' => sub {
my $error = session('error');
session 'error' => undef;
template 'register', {
error => $error,
};
};
post '/register' => sub {
my ($email, $pass1, $pass2);
session 'error', undef;
unless ($email = lc param('email')
and $pass1 = param('password') and $pass2 = param('password2')) {
session 'error' => 'You must fill in all values';
return redirect '/register';
}
if ($email !~ /\@\Q$ENV{KZ_DOMAIN}/) {
session 'error' => "You must use your \@$ENV{KZ_DOMAIN} email address";
return redirect '/register';
}
unless ($pass1 eq $pass2) {
session 'error' => 'Password values are not the same';
return redirect '/register';
}
my $user = $rs{Student}->find({
email => $email,
});
if (!$user) {
session 'error' => "Email address $email is unknown.";
return redirect '/register';
}
if ($user->password) {
session 'error', $user->name . ' (' . $user->email . ') is already registered.'
. '<br>Please <a href="/login">log in</a> instead.</p>';
return redirect '/register';
}
my $verify = passphrase->generate_random({
length => 32,
charset => [ 'a' .. 'z', '0' .. '9' ],
});
$user->update({
password => passphrase($pass1)->generate->rfc2307,
verify => $verify,
});
# reread from database
$user->discard_changes;
send_verify($user);
template 'registered', { user => $user };
};
get '/verify/:code' => sub {
my $code = param('code');
my $student = $rs{Student}->find({
verify => $code,
});
if ($student) {
$student->update({
verify => undef,
});
template 'verified';
} else {
template 'unverified';
}
};
get '/resend' => sub {
my $student = $rs{Student}->find({
email => session('email'),
});
if (!$student->verify) {
return template 'verified';
}
template 'resend', { student => $student };
};
post '/resend' => sub {
my $student = $rs{Student}->find({
email => session('email'),
});
if (!$student->verify) {
return template 'verified';
}
$student->update({
email => lc param('email'),
});
# reread from database
$student->discard_changes;
if (send_verify($student)) {
template 'registered', { user => $student };
} else {
template 'verified';
}
};
get '/login' => sub {
my $error = session('error');
session 'error' => undef;
template 'login', { error => $error };
};
post '/login' => sub {
session 'email' => undef;
session 'name' => undef;
unless (params->{email} and params->{password}) {
session 'error' => 'Must give both email and password';
return redirect '/login';
}
my $user = $rs{Student}->find({
email => lc params->{email},
});
unless ($user) {
session 'error' => 'Invalid email or password';
return redirect '/login';
}
unless (passphrase(params->{password})->matches($user->password)) {
session 'error' => 'Invalid email or password';
return redirect '/login';
}
session 'email' => $user->email;
session 'name' => $user->name;
if (my $goto = session('goto')) {
session 'goto' => undef;
redirect $goto;
} else {
redirect '/';
}
};
get '/logout' => sub {
session 'email' => undef;
session 'name' => undef;
redirect '/';
};
get '/password' => sub {
my $error = session('error');
session 'error' => undef;
template 'password', { error => $error };
};
post '/password' => sub {
unless (params->{email}) {
session 'error' => 'You must give an email address';
return redirect '/password';
}
my $email = lc params->{email};
my $student = $rs{Student}->find({
email => $email,
});
unless ($student) {
session 'error' => "$email is not a registered email address";
return redirect '/password';
}
my $pass_code = passphrase->generate_random({
length => 32,
charset => [ 'a' .. 'z', '0' .. '9' ],
});
$student->add_to_password_resets({
code => $pass_code,
});
my $body = <<EO_EMAIL;
Dear @{[$student->name]},
Here is your password reset link.
Please click on the link below to set a new password.
@{[uri_for('/passreset')]}/$pass_code
EO_EMAIL
email {
from => 'admin@kinza.me',
to => $student->email,
subject => 'SCHS Kinza Password Change Request',
body => $body,
};
template 'pass_sent', { student => $student };
};
get '/passreset/:code' => sub {
my $code = param('code');
my $ps = schema->resultset('PasswordReset')->find({
code => $code,
});
unless ($ps) {
session 'error' => "Code '$code' is not recognised. Please try again.";
return redirect '/password';
}
session 'code' => $code;
template 'passreset', { code => $code };
};
post '/passreset' => sub {
my $code = session('code');
unless ($code) {
session 'error' => 'Something went wrong.';
redirect '/password';
}
my $ps = schema->resultset('PasswordReset')->find({
code => $code,
});
unless ($ps) {
session 'error' => "Code '$code' is not recognised. Please try again.";
redirect '/password';
}
my $error;
unless (param('password') and param('password2')) {
$error = 'You must fill in both passwords';
}
unless (param('password') eq param('password2')) {
$error = 'Password values are not the same';
}
if ($error) {
return template 'passreset', { error => $error };
}
schema->txn_do(sub {
$ps->student->update({
password => passphrase(param('password'))->generate->rfc2307,
});
$ps->delete;
});
template 'passdone';
};
get '/years' => sub {
template 'years', { years => $rs{Year} };
};
get '/courses' => sub {
template 'courses', {
courses => $rs{Course},
years => $rs{Year},
terms => $rs{Term},
};
};
sub send_verify {
my ($student) = @_;
return unless $student->verify;
my $body = <<EO_EMAIL;
Dear @{[$student->name]},
Thank you for registering for Kinza 2015/16.
Please click on the link below to verify your email address.
@{[uri_for('/verify')]}/@{[$student->verify]}
EO_EMAIL
email {
from => 'admin@kinza.me',
to => $student->email,
subject => 'SCHS Kinza Verification',
body => $body,
};
}
true;