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<?php |
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namespace MySociety\TheyWorkForYou; |
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function add_vat($pence) { |
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1 |
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return round($pence * 1.2 / 100, 2); |
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} |
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class Subscription { |
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public $stripe; |
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public $upcoming; |
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public $has_payment_data = false; |
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private static $plans = ['twfy-1k', 'twfy-5k', 'twfy-10k', 'twfy-0k']; |
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private static $prices = [2000, 5000, 10000, 30000]; |
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1 |
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public function __construct($arg) { |
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1 |
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# User ID |
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if (is_int($arg)) { |
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$user = new \USER(); |
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$user->init($arg); |
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$arg = $user; |
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} |
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1 |
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$this->db = new \ParlDB(); |
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$this->redis = new Redis(); |
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if (defined('TESTING')) { |
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$this->api = new TestStripe(""); |
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} else { |
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$this->api = new Stripe(STRIPE_SECRET_KEY); |
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} |
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if (is_a($arg, 'User')) { |
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# User object |
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$this->user = $arg; |
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$this->redis_prefix = "user:{$this->user->user_id}:quota:" . REDIS_API_NAME; |
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$q = $this->db->query('SELECT * FROM api_subscription WHERE user_id = :user_id', [ |
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':user_id' => $this->user->user_id()])->first(); |
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if ($q) { |
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$id = $q['stripe_id']; |
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} else { |
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return; |
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} |
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} else { |
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# Assume Stripe ID string |
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$id = $arg; |
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$q = $this->db->query('SELECT * FROM api_subscription WHERE stripe_id = :stripe_id', [ |
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':stripe_id' => $id])->first(); |
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if ($q) { |
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$user = new \USER(); |
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$user->init($q['user_id']); |
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$this->user = $user; |
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$this->redis_prefix = "user:{$this->user->user_id}:quota:" . REDIS_API_NAME; |
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} else { |
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return; |
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} |
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} |
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try { |
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$this->stripe = $this->api->getSubscription([ |
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'id' => $id, |
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'expand' => [ |
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'customer.default_source', |
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'customer.invoice_settings.default_payment_method', |
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'latest_invoice.payment_intent', |
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'schedule.phases.items.plan', |
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], |
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]); |
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} catch (\Stripe\Exception\InvalidRequestException $e) { |
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$this->db->query('DELETE FROM api_subscription WHERE stripe_id = :stripe_id', [':stripe_id' => $id]); |
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$this->delete_from_redis(); |
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return; |
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} |
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1 |
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$this->has_payment_data = $this->stripe->customer->default_source || $this->stripe->customer->invoice_settings->default_payment_method; |
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if ($this->stripe->customer->invoice_settings->default_payment_method) { |
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$this->card_info = $this->stripe->customer->invoice_settings->default_payment_method->card; |
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} else { |
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$this->card_info = $this->stripe->customer->default_source; |
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} |
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1 |
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$data = $this->stripe; |
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if ($data->discount && $data->discount->coupon && $data->discount->coupon->percent_off) { |
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$this->actual_paid = add_vat(floor( |
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$data->plan->amount * (100 - $data->discount->coupon->percent_off) / 100 |
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)); |
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$data->plan->amount = add_vat($data->plan->amount); |
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} else { |
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$data->plan->amount = add_vat($data->plan->amount); |
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$this->actual_paid = $data->plan->amount; |
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} |
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try { |
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$this->upcoming = $this->api->getUpcomingInvoice(["customer" => $this->stripe->customer->id]); |
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} catch (\Stripe\Exception\ApiErrorException $e) { |
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} |
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} |
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private function update_subscription($form_data) { |
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if ($form_data['payment_method']) { |
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$this->update_payment_method($form_data['payment_method']); |
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} |
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foreach ($this::$plans as $i => $plan) { |
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if ($plan == $form_data['plan']) { |
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$new_price = $this::$prices[$i]; |
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if ($form_data['coupon'] == 'charitable100') { |
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$new_price = 0; |
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} elseif ($form_data['coupon'] == 'charitable50') { |
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$new_price /= 2; |
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} |
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} |
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if ($plan == $this->stripe->plan->id) { |
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$old_price = $this::$prices[$i]; |
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if ($this->stripe->discount && ($coupon = $this->stripe->discount->coupon)) { |
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if ($coupon->percent_off == 100) { |
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$old_price = 0; |
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} elseif ($coupon->percent_off == 50) { |
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$old_price /= 2; |
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} |
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} |
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} |
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} |
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if ($old_price >= $new_price) { |
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if ($this->stripe->schedule) { |
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\Stripe\SubscriptionSchedule::release($this->stripe->schedule); |
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} |
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$schedule = \Stripe\SubscriptionSchedule::create(['from_subscription' => $this->stripe->id]); |
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$phases = [ |
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[ |
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'items' => [['price' => $schedule->phases[0]->items[0]->price]], |
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'start_date' => $schedule->phases[0]->start_date, |
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'end_date' => $schedule->phases[0]->end_date, |
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'proration_behavior' => 'none', |
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'default_tax_rates' => [STRIPE_TAX_RATE], |
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], |
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[ |
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'items' => [['price' => $form_data['plan']]], |
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'iterations' => 1, |
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'metadata' => $form_data['metadata'], |
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'proration_behavior' => 'none', |
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'default_tax_rates' => [STRIPE_TAX_RATE], |
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], |
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]; |
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if ($schedule->phases[0]->discounts && $schedule->phases[0]->discounts[0]->coupon) { |
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$phases[0]['discounts'] = [['coupon' => $schedule->phases[0]->discounts[0]->coupon]]; |
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} |
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if ($form_data['coupon']) { |
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$phases[1]['coupon'] = $form_data['coupon']; |
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} |
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\Stripe\SubscriptionSchedule::update($schedule->id, ['phases' => $phases]); |
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} |
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if ($old_price < $new_price) { |
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$args = [ |
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'payment_behavior' => 'allow_incomplete', |
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'plan' => $form_data['plan'], |
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'metadata' => $form_data['metadata'], |
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'cancel_at_period_end' => false, # Needed in Stripe 2018-02-28 |
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'proration_behavior' => 'always_invoice', |
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]; |
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if ($form_data['coupon']) { |
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$args['coupon'] = $form_data['coupon']; |
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} elseif ($this->stripe->discount) { |
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$args['coupon'] = ''; |
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} |
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if ($this->stripe->schedule) { |
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\Stripe\SubscriptionSchedule::release($this->stripe->schedule); |
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} |
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\Stripe\Subscription::update($this->stripe->id, $args); |
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} |
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} |
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private function update_customer($args) { |
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$this->api->updateCustomer($this->stripe->customer->id, $args); |
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} |
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public function update_email($email) { |
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$this->update_customer([ 'email' => $email ]); |
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} |
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public function update_payment_method($payment_method) { |
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$payment_method = \Stripe\PaymentMethod::retrieve($payment_method); |
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$payment_method->attach(['customer' => $this->stripe->customer->id]); |
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$this->update_customer([ |
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'invoice_settings' => [ |
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'default_payment_method' => $payment_method, |
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], |
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]); |
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} |
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193
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private function add_subscription($form_data) { |
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# Create new Stripe customer and subscription |
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$cust_params = ['email' => $this->user->email()]; |
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if ($form_data['stripeToken']) { |
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$cust_params['source'] = $form_data['stripeToken']; |
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} |
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200
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# At the point the customer is created, details such as postcode and |
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201
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# security code can be checked, and therefore fail |
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202
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try { |
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203
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$obj = $this->api->createCustomer($cust_params); |
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} catch (\Stripe\Exception\CardException $e) { |
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205
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$body = $e->getJsonBody(); |
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$err = $body['error']; |
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207
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$error = 'Sorry, we could not process your payment, please try again. '; |
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208
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$error .= 'Our payment processor returned: ' . $err['message']; |
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unset($_POST['stripeToken']); # So card form is shown again |
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return [ $error ]; |
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} |
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213
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$customer = $obj->id; |
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214
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215
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if (!$form_data['stripeToken'] && !($form_data['plan'] == $this::$plans[0] && $form_data['coupon'] == 'charitable100')) { |
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216
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exit(1); # Should never reach here! |
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217
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} |
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218
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219
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$obj = $this->api->createSubscription([ |
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'payment_behavior' => 'allow_incomplete', |
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'expand' => ['latest_invoice.payment_intent'], |
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'default_tax_rates' => [STRIPE_TAX_RATE], |
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223
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'customer' => $customer, |
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'plan' => $form_data['plan'], |
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'coupon' => $form_data['coupon'], |
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226
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'metadata' => $form_data['metadata'], |
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]); |
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228
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$stripe_id = $obj->id; |
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229
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230
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$this->db->query('INSERT INTO api_subscription (user_id, stripe_id) VALUES (:user_id, :stripe_id)', [ |
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231
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':user_id' => $this->user->user_id(), |
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232
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':stripe_id' => $stripe_id, |
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]); |
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234
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} |
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235
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236
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public function invoices() { |
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237
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$invoices = $this->api->getInvoices([ |
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238
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'subscription' => $this->stripe->id, |
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239
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'limit' => 24, |
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240
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]); |
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241
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$invoices = $invoices->data; |
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242
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return $invoices; |
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243
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} |
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244
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245
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private function getFields() { |
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246
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$fields = ['plan', 'charitable_tick', 'charitable', 'charity_number', 'description', 'tandcs_tick', 'stripeToken', 'payment_method']; |
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247
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$this->form_data = []; |
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248
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foreach ($fields as $field) { |
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249
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$this->form_data[$field] = get_http_var($field); |
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250
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} |
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251
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} |
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252
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253
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private function checkValidPlan() { |
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254
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return ($this->form_data['plan'] && in_array($this->form_data['plan'], $this::$plans)); |
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255
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} |
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256
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257
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private function checkPaymentGivenIfNeeded() { |
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258
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$payment_data = $this->form_data['stripeToken'] || $this->form_data['payment_method']; |
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259
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return ($this->has_payment_data || $payment_data || ( |
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260
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$this->form_data['plan'] == $this::$plans[0] |
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261
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&& in_array($this->form_data['charitable'], ['c', 'i']) |
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262
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)); |
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263
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} |
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264
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265
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public function checkForErrors() { |
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266
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$this->getFields(); |
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267
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$form_data = &$this->form_data; |
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268
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269
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$errors = []; |
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270
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if ($form_data['charitable'] && !in_array($form_data['charitable'], ['c', 'i', 'o'])) { |
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271
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$form_data['charitable'] = ''; |
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272
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} |
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273
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274
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if (!$this->checkValidPlan()) { |
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275
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$errors[] = 'Please pick a plan'; |
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276
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} |
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277
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278
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if (!$this->checkPaymentGivenIfNeeded()) { |
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279
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$errors[] = 'You need to submit payment'; |
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280
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} |
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281
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282
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if (!$this->stripe && !$form_data['tandcs_tick']) { |
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283
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$errors[] = 'Please agree to the terms and conditions'; |
|
284
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} |
|
285
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286
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if (!$form_data['charitable_tick']) { |
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287
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$form_data['charitable'] = ''; |
|
288
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$form_data['charity_number'] = ''; |
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289
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$form_data['description'] = ''; |
|
290
|
|
|
return $errors; |
|
291
|
|
|
} |
|
292
|
|
|
|
|
293
|
|
|
if ($form_data['charitable'] == 'c' && !$form_data['charity_number']) { |
|
294
|
|
|
$errors[] = 'Please provide your charity number'; |
|
295
|
|
|
} |
|
296
|
|
|
if ($form_data['charitable'] == 'i' && !$form_data['description']) { |
|
297
|
|
|
$errors[] = 'Please provide details of your project'; |
|
298
|
|
|
} |
|
299
|
|
|
|
|
300
|
|
|
return $errors; |
|
301
|
|
|
} |
|
302
|
|
|
|
|
303
|
|
|
public function createOrUpdateFromForm() { |
|
304
|
|
|
$form_data = $this->form_data; |
|
305
|
|
|
|
|
306
|
|
|
$form_data['coupon'] = null; |
|
307
|
|
|
if (in_array($form_data['charitable'], ['c', 'i'])) { |
|
308
|
|
|
$form_data['coupon'] = 'charitable50'; |
|
309
|
|
|
if ($form_data['plan'] == $this::$plans[0]) { |
|
310
|
|
|
$form_data['coupon'] = 'charitable100'; |
|
311
|
|
|
} |
|
312
|
|
|
} |
|
313
|
|
|
|
|
314
|
|
|
$form_data['metadata'] = [ |
|
315
|
|
|
'charitable' => $form_data['charitable'], |
|
316
|
|
|
'charity_number' => $form_data['charity_number'], |
|
317
|
|
|
'description' => $form_data['description'], |
|
318
|
|
|
]; |
|
319
|
|
|
|
|
320
|
|
|
if ($this->stripe) { |
|
321
|
|
|
$this->update_subscription($form_data); |
|
322
|
|
|
} else { |
|
323
|
|
|
return $this->add_subscription($form_data); |
|
324
|
|
|
} |
|
325
|
|
|
} |
|
326
|
|
|
|
|
327
|
|
|
public function redis_update_max($plan) { |
|
328
|
|
|
preg_match('#^twfy-(\d+)k#', $plan, $m); |
|
329
|
|
|
$max = $m[1] * 1000; |
|
330
|
|
|
$this->redis->set("$this->redis_prefix:max", $max); |
|
|
|
|
|
|
331
|
|
|
$this->redis->del("$this->redis_prefix:blocked"); |
|
|
|
|
|
|
332
|
|
|
} |
|
333
|
|
|
|
|
334
|
|
|
public function redis_reset_quota() { |
|
335
|
|
|
$count = $this->redis->getset("$this->redis_prefix:count", 0); |
|
|
|
|
|
|
336
|
|
|
if ($count !== null) { |
|
337
|
|
|
$this->redis->rpush("$this->redis_prefix:history", $count); |
|
|
|
|
|
|
338
|
|
|
} |
|
339
|
|
|
$this->redis->del("$this->redis_prefix:blocked"); |
|
340
|
|
|
} |
|
341
|
|
|
|
|
342
|
|
|
public function delete_from_redis() { |
|
343
|
|
|
$this->redis->del("$this->redis_prefix:max"); |
|
344
|
|
|
$this->redis->del("$this->redis_prefix:count"); |
|
345
|
|
|
$this->redis->del("$this->redis_prefix:blocked"); |
|
346
|
|
|
} |
|
347
|
|
|
|
|
348
|
|
|
public function quota_status() { |
|
349
|
|
|
return [ |
|
350
|
|
|
'count' => floor($this->redis->get("$this->redis_prefix:count")), |
|
|
|
|
|
|
351
|
|
|
'blocked' => floor($this->redis->get("$this->redis_prefix:blocked")), |
|
352
|
|
|
'quota' => floor($this->redis->get("$this->redis_prefix:max")), |
|
353
|
|
|
'history' => $this->redis->lrange("$this->redis_prefix:history", 0, -1), |
|
|
|
|
|
|
354
|
|
|
]; |
|
355
|
|
|
} |
|
356
|
|
|
} |
|
357
|
|
|
|
mysociety /
theyworkforyou
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