From a2adcc8360131c1a8207521a3cbba2907d7a1d35 Mon Sep 17 00:00:00 2001 From: sackey Date: Sun, 19 Jan 2025 12:16:32 +0000 Subject: [PATCH 1/2] Initial commit --- LICENSE | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ README.md | 2 ++ 2 files changed, 75 insertions(+) create mode 100644 LICENSE create mode 100644 README.md diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..655b249 --- /dev/null +++ b/LICENSE @@ -0,0 +1,73 @@ +Apache License +Version 2.0, January 2004 +http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. + +Copyright 2025 sackey + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + +http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. diff --git a/README.md b/README.md new file mode 100644 index 0000000..345e9b1 --- /dev/null +++ b/README.md @@ -0,0 +1,2 @@ +# paystack + -- 2.47.1 From 6fe27ccc22bab8ff30832a591186529c04b8bdbd Mon Sep 17 00:00:00 2001 From: sackey Date: Sun, 19 Jan 2025 12:18:55 +0000 Subject: [PATCH 2/2] Initial commit --- .idea/.gitignore | 8 + .idea/modules.xml | 8 + .idea/paystack.iml | 8 + .idea/php.xml | 19 ++ .idea/vcs.xml | 6 + config/autoload.php | 4 + controllers/Admin.php | 240 +++++++++++++++++ controllers/Paystack.php | 337 ++++++++++++++++++++++++ helpers/paystack_security_helper.php | 75 ++++++ install.php | 71 +++++ language/english/paystack_lang.php | 127 +++++++++ libraries/Paystack_error_handler.php | 112 ++++++++ libraries/Paystack_gateway.php | 378 +++++++++++++++++++++++++++ models/Paystack_model.php | 210 +++++++++++++++ paystack.php | 84 ++++++ views/admin/dashboard.php | 178 +++++++++++++ views/admin/settings.php | 104 ++++++++ views/admin/test_mode.php | 228 ++++++++++++++++ views/admin/transactions.php | 169 ++++++++++++ views/payment.php | 101 +++++++ 20 files changed, 2467 insertions(+) create mode 100644 .idea/.gitignore create mode 100644 .idea/modules.xml create mode 100644 .idea/paystack.iml create mode 100644 .idea/php.xml create mode 100644 .idea/vcs.xml create mode 100644 config/autoload.php create mode 100644 controllers/Admin.php create mode 100644 controllers/Paystack.php create mode 100644 helpers/paystack_security_helper.php create mode 100644 install.php create mode 100644 language/english/paystack_lang.php create mode 100644 libraries/Paystack_error_handler.php create mode 100644 libraries/Paystack_gateway.php create mode 100644 models/Paystack_model.php create mode 100644 paystack.php create mode 100644 views/admin/dashboard.php create mode 100644 views/admin/settings.php create mode 100644 views/admin/test_mode.php create mode 100644 views/admin/transactions.php create mode 100644 views/payment.php diff --git a/.idea/.gitignore b/.idea/.gitignore new file mode 100644 index 0000000..13566b8 --- /dev/null +++ b/.idea/.gitignore @@ -0,0 +1,8 @@ +# Default ignored files +/shelf/ +/workspace.xml +# Editor-based HTTP Client requests +/httpRequests/ +# Datasource local storage ignored files +/dataSources/ +/dataSources.local.xml diff --git a/.idea/modules.xml b/.idea/modules.xml new file mode 100644 index 0000000..7b7c9cc --- /dev/null +++ b/.idea/modules.xml @@ -0,0 +1,8 @@ + + + + + + + + \ No newline at end of file diff --git a/.idea/paystack.iml b/.idea/paystack.iml new file mode 100644 index 0000000..c956989 --- /dev/null +++ b/.idea/paystack.iml @@ -0,0 +1,8 @@ + + + + + + + + \ No newline at end of file diff --git a/.idea/php.xml b/.idea/php.xml new file mode 100644 index 0000000..f324872 --- /dev/null +++ b/.idea/php.xml @@ -0,0 +1,19 @@ + + + + + + + + + + + + + \ No newline at end of file diff --git a/.idea/vcs.xml b/.idea/vcs.xml new file mode 100644 index 0000000..94a25f7 --- /dev/null +++ b/.idea/vcs.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/config/autoload.php b/config/autoload.php new file mode 100644 index 0000000..7aad0d6 --- /dev/null +++ b/config/autoload.php @@ -0,0 +1,4 @@ +load->model('paystack_model'); + } + + /** + * Display settings page + */ + public function settings() + { + if (!has_permission('settings', '', 'view')) { + access_denied('settings'); + } + + if ($this->input->post()) { + if (!has_permission('settings', '', 'edit')) { + access_denied('settings'); + } + + $data = $this->input->post(); + $success = $this->paystack_model->update_settings($data); + + if ($success) { + set_alert('success', _l('settings_updated')); + } + } + + $data['title'] = _l('paystack_settings'); + $data['tab'] = 'settings'; + $this->load->view('admin/settings', $data); + } + + /** + * Display transaction logs + */ + public function transactions() + { + if (!has_permission('payments', '', 'view')) { + access_denied('payments'); + } + + $data['title'] = _l('paystack_transactions'); + $data['tab'] = 'transactions'; + + // Get filters + $filter = [ + 'start_date' => $this->input->get('start_date'), + 'end_date' => $this->input->get('end_date'), + 'status' => $this->input->get('status') + ]; + + $data['transactions'] = $this->paystack_model->get_transactions($filter); + $this->load->view('admin/transactions', $data); + } + + /** + * Display test mode interface + */ + public function test_mode() + { + if (!has_permission('settings', '', 'view')) { + access_denied('settings'); + } + + $data['title'] = _l('paystack_test_mode'); + $data['tab'] = 'test_mode'; + $data['test_keys'] = $this->paystack_model->get_test_keys(); + $this->load->view('admin/test_mode', $data); + } + + /** + * Display payment status dashboard + */ + public function dashboard() + { + if (!has_permission('payments', '', 'view')) { + access_denied('payments'); + } + + $data['title'] = _l('paystack_dashboard'); + $data['tab'] = 'dashboard'; + + // Get statistics + $data['stats'] = $this->paystack_model->get_payment_stats(); + $data['recent_transactions'] = $this->paystack_model->get_recent_transactions(); + $data['monthly_chart'] = $this->paystack_model->get_monthly_chart_data(); + + $this->load->view('admin/dashboard', $data); + } + + /** + * Get transaction details (AJAX) + */ + public function get_transaction_details($reference) + { + if (!has_permission('payments', '', 'view')) { + ajax_access_denied(); + } + + $transaction = $this->paystack_model->get_transaction($reference); + echo json_encode($transaction); + } + + /** + * Verify test webhook + */ +// public function test_webhook() +// { +// if (!has_permission('settings', '', 'view')) { +// ajax_access_denied(); +// } +// +// $this->load->library('paystack_gateway'); +// $result = $this->paystack_gateway->test_webhook(); +// +// echo json_encode($result); +// } + + /** + * Initiate test payment + */ + public function initiate_test_payment() + { + if (!has_permission('settings', '', 'view')) { + ajax_access_denied(); + } + + $amount = $this->input->post('amount'); + $email = $this->input->post('email'); + + if (!$amount || !$email) { + echo json_encode([ + 'success' => false, + 'message' => _l('invalid_input') + ]); + return; + } + + $reference = 'TEST_' . time() . '_' . mt_rand(1000, 9999); + + echo json_encode([ + 'success' => true, + 'reference' => $reference + ]); + } + + /** + * Test webhook connection + */ + public function test_webhook() + { + if (!has_permission('settings', '', 'view')) { + ajax_access_denied(); + } + + $this->load->library('paystack_gateway'); + + // Try to send a test webhook + $webhook_url = site_url('paystack/webhook'); + $test_data = [ + 'event' => 'test', + 'data' => [ + 'reference' => 'TEST_' . time(), + 'status' => 'success' + ] + ]; + + $ch = curl_init($webhook_url); + curl_setopt($ch, CURLOPT_POST, 1); + curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($test_data)); + curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); + curl_setopt($ch, CURLOPT_HTTPHEADER, [ + 'Content-Type: application/json', + 'X-Paystack-Signature: ' . hash_hmac('sha512', json_encode($test_data), $this->paystack_gateway->get_webhook_secret()) + ]); + + $response = curl_exec($ch); + $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); + curl_close($ch); + + if ($http_code == 200) { + echo json_encode([ + 'success' => true, + 'message' => _l('webhook_received_response') + ]); + } else { + echo json_encode([ + 'success' => false, + 'message' => _l('webhook_connection_failed') . ' (HTTP ' . $http_code . ')' + ]); + } + } + + /** + * Log debug message + */ + public function log_debug() + { + if (!has_permission('settings', '', 'view')) { + ajax_access_denied(); + } + + $message = $this->input->post('message'); + if ($message) { + $this->paystack_model->add_debug_log($message); + } + } + + /** + * Get debug log + */ + public function get_debug_log() + { + if (!has_permission('settings', '', 'view')) { + ajax_access_denied(); + } + + $log = $this->paystack_model->get_debug_log(); + echo $log; + } + + /** + * Clear debug log + */ + public function clear_debug_log() + { + if (!has_permission('settings', '', 'view')) { + ajax_access_denied(); + } + + $this->paystack_model->clear_debug_log(); + } +} diff --git a/controllers/Paystack.php b/controllers/Paystack.php new file mode 100644 index 0000000..a7627f9 --- /dev/null +++ b/controllers/Paystack.php @@ -0,0 +1,337 @@ +load->model('invoices_model'); + $this->load->model('clients_model'); + $this->load->library('paystack_gateway'); + $this->load->model('paystack/paystack_model'); + } + + /** + * Show payment form + */ + public function make_payment() + { + $payment_data = $this->session->userdata('paystack_payment_data'); + + if (!$payment_data) { + set_alert('danger', _l('invalid_payment')); + redirect(site_url('invoices')); + } + + $invoice = $this->invoices_model->get($payment_data['invoice_id']); + if (!$invoice) { + set_alert('danger', _l('invoice_not_found')); + redirect(site_url('invoices')); + } + + // Get client data + $client = $this->clients_model->get($invoice->clientid); + + $data = []; + $data['invoice'] = $invoice; + $data['payment_data'] = $payment_data; + $data['client'] = $client; + + $this->load->view('paystack/payment', $data); + } + + /** + * Verify payment callback + */ + public function verify_payment($reference = null) + { + if (!$reference) { + redirect(site_url('clients/invoices')); + } + + // Log verification attempt + $this->paystack_model->add_payment_log([ + 'message' => 'Verifying payment: ' . $reference, + 'log_type' => 'info' + ]); + + $transaction = $this->paystack_gateway->verify_transaction($reference); + + if ($transaction['success']) { + // Get the transaction from our database + $local_transaction = $this->paystack_model->get_transaction_by_reference($reference); + + if ($local_transaction) { + // Update local transaction status + $this->db->where('id', $local_transaction['id']); + $this->db->update(db_prefix() . 'paystack_transactions', [ + 'status' => 'success', + 'transaction_date' => date('Y-m-d H:i:s') + ]); + + // Record the payment in Perfex CRM + $payment_data = [ + 'amount' => $local_transaction['amount'], + 'invoiceid' => $local_transaction['invoice_id'], + 'paymentmode' => 'paystack', + 'transactionid' => $reference + ]; + + $this->load->model('payments_model'); + $payment_id = $this->payments_model->add($payment_data); + + if ($payment_id) { + set_alert('success', _l('payment_recorded_successfully')); + } else { + set_alert('danger', _l('payment_record_failed')); + } + } + } else { + set_alert('danger', _l('payment_failed')); + } + + // Redirect to invoice + redirect(site_url('clients/invoices')); + } + + /** + * Handle Paystack webhook + */ +// public function webhook() +// { +// if ((strtoupper($_SERVER['REQUEST_METHOD']) != 'POST') || !array_key_exists('HTTP_X_PAYSTACK_SIGNATURE', $_SERVER)) { +// exit(); +// } +// +// $input = file_get_contents("php://input"); +// +// // Verify webhook signature +// $secret_key = $this->paystack_gateway->decryptSetting('paystack_secret_key'); +// if ($_SERVER['HTTP_X_PAYSTACK_SIGNATURE'] !== hash_hmac('sha512', $input, $secret_key)) { +// exit(); +// } +// +// http_response_code(200); +// +// $event = json_decode($input); +// +// // Handle the event +// switch ($event->event) { +// case 'charge.success': +// $this->handle_successful_charge($event->data); +// break; +// case 'transfer.success': +// $this->handle_successful_transfer($event->data); +// break; +// case 'charge.failed': +// $this->handle_failed_charge($event->data); +// break; +// } +// +// exit(); +// } + public function webhook() + { + $this->load->helper('paystack_security'); + + // Get payload and signature + $payload = file_get_contents('php://input'); + $signature = isset($_SERVER['HTTP_X_PAYSTACK_SIGNATURE']) ? $_SERVER['HTTP_X_PAYSTACK_SIGNATURE'] : ''; + + // Log webhook request + $this->paystack_model->add_webhook_log([ + 'event' => 'webhook_received', + 'payload' => $payload, + 'signature' => $signature, + 'status' => 'received' + ]); + + // Verify signature + if (!verify_paystack_webhook_signature($payload, $signature)) { + $this->paystack_model->add_webhook_log([ + 'event' => 'webhook_verification_failed', + 'payload' => $payload, + 'status' => 'failed', + 'message' => 'Invalid signature' + ]); + header('HTTP/1.1 401 Unauthorized'); + exit(); + } + + // Parse payload + $event = json_decode($payload); + + // Validate payload + if (!is_object($event) || !isset($event->event)) { + $this->paystack_model->add_webhook_log([ + 'event' => 'webhook_invalid_payload', + 'payload' => $payload, + 'status' => 'failed', + 'message' => 'Invalid payload format' + ]); + header('HTTP/1.1 400 Bad Request'); + exit(); + } + + try { + // Process different event types + switch ($event->event) { + case 'charge.success': + $this->handle_successful_charge($event->data); + break; + + case 'charge.failed': + $this->handle_failed_charge($event->data); + break; + + case 'transfer.success': + $this->handle_successful_transfer($event->data); + break; + + case 'transfer.failed': + $this->handle_failed_transfer($event->data); + break; + + default: + // Log unknown event type + $this->paystack_model->add_webhook_log([ + 'event' => $event->event, + 'payload' => $payload, + 'status' => 'skipped', + 'message' => 'Unknown event type' + ]); + break; + } + + header('HTTP/1.1 200 OK'); + echo json_encode(['status' => 'success']); + } catch (Exception $e) { + // Log error + $this->paystack_model->add_webhook_log([ + 'event' => $event->event, + 'payload' => $payload, + 'status' => 'error', + 'message' => $e->getMessage() + ]); + + header('HTTP/1.1 500 Internal Server Error'); + echo json_encode(['status' => 'error', 'message' => 'Internal processing error']); + } + } + + /** + * Handle successful charge + */ + private function handle_successful_charge($data) + { + // Validate the charge data + if (!isset($data->reference) || !isset($data->amount)) { + throw new Exception('Invalid charge data'); + } + + // Find the transaction + $transaction = $this->paystack_model->get_transaction_by_reference($data->reference); + + if (!$transaction) { + throw new Exception('Transaction not found'); + } + + // Verify amount + $expected_amount = $transaction['amount'] * 100; // Convert to kobo + if ($data->amount !== $expected_amount) { + throw new Exception('Amount mismatch'); + } + + // Update transaction status + $this->paystack_model->update_transaction($transaction['id'], [ + 'status' => 'success', + 'transaction_date' => date('Y-m-d H:i:s') + ]); + + // Add to payment logs + $this->paystack_model->add_payment_log([ + 'transaction_id' => $transaction['id'], + 'invoice_id' => $transaction['invoice_id'], + 'amount' => $transaction['amount'], + 'message' => 'Payment successful', + 'log_type' => 'success' + ]); + + // Record payment in Perfex CRM + $payment_data = [ + 'amount' => $transaction['amount'], + 'invoiceid' => $transaction['invoice_id'], + 'paymentmode' => 'paystack', + 'transactionid' => $data->reference + ]; + + $this->load->model('payments_model'); + $payment_id = $this->payments_model->add($payment_data); + + if (!$payment_id) { + throw new Exception('Failed to record payment'); + } + + // Send email notification + $this->send_payment_notification($transaction['invoice_id'], $payment_id); + } + + /** + * Handle failed charge + */ + private function handle_failed_charge($data) + { + if (!isset($data->reference)) { + throw new Exception('Invalid charge data'); + } + + $transaction = $this->paystack_model->get_transaction_by_reference($data->reference); + + if ($transaction) { + // Update transaction status + $this->paystack_model->update_transaction($transaction['id'], [ + 'status' => 'failed', + 'transaction_date' => date('Y-m-d H:i:s') + ]); + + // Add to payment logs + $this->paystack_model->add_payment_log([ + 'transaction_id' => $transaction['id'], + 'invoice_id' => $transaction['invoice_id'], + 'amount' => $transaction['amount'], + 'message' => 'Payment failed: ' . ($data->gateway_response ?? 'Unknown error'), + 'log_type' => 'error' + ]); + } + } + + /** + * Handle successful transfer + */ + private function handle_successful_transfer($data) + { + log_activity('Paystack Webhook: Successful transfer - Reference: ' . $data->reference); + } + + /** + * Send payment success email + */ + private function send_payment_success_email($invoice_id, $transaction) + { + $this->load->model('emails_model'); + + $invoice = $this->invoices_model->get($invoice_id); + $client = $this->clients_model->get($invoice->clientid); + + $email_template = 'invoice-payment-recorded'; + $merge_fields = []; + $merge_fields = array_merge($merge_fields, get_invoice_merge_fields($invoice_id)); + $merge_fields = array_merge($merge_fields, get_client_merge_fields($client->userid)); + $merge_fields['{payment_total}'] = app_format_money($transaction['data']->amount / 100, $invoice->currency_name); + $merge_fields['{payment_reference}'] = $transaction['data']->reference; + + $this->emails_model->send_email_template($email_template, $client->email, $merge_fields); + } +} \ No newline at end of file diff --git a/helpers/paystack_security_helper.php b/helpers/paystack_security_helper.php new file mode 100644 index 0000000..2558295 --- /dev/null +++ b/helpers/paystack_security_helper.php @@ -0,0 +1,75 @@ + false, + 'message' => 'Invalid response format' + ]; + } + + if (!isset($response->status) || $response->status !== true) { + return [ + 'valid' => false, + 'message' => isset($response->message) ? $response->message : 'Invalid response status' + ]; + } + + return [ + 'valid' => true, + 'data' => $response->data + ]; +} + +/** + * Sanitize API keys + */ +function sanitize_paystack_keys($key) +{ + return preg_replace('/[^a-zA-Z0-9_]/', '', $key); +} + +/** + * Validate amount + */ +function validate_paystack_amount($amount) +{ + return is_numeric($amount) && $amount > 0; +} + +/** + * Encrypt sensitive data + */ +function encrypt_paystack_data($data) +{ + $CI = &get_instance(); + $CI->load->library('encryption'); + return $CI->encryption->encrypt($data); +} + +/** + * Decrypt sensitive data + */ +function decrypt_paystack_data($data) +{ + $CI = &get_instance(); + $CI->load->library('encryption'); + return $CI->encryption->decrypt($data); +} \ No newline at end of file diff --git a/install.php b/install.php new file mode 100644 index 0000000..1e41f15 --- /dev/null +++ b/install.php @@ -0,0 +1,71 @@ +db->table_exists(db_prefix() . 'paystack_transactions')) { + $CI->db->query('CREATE TABLE `' . db_prefix() . 'paystack_transactions` ( + `id` int(11) NOT NULL AUTO_INCREMENT, + `invoice_id` int(11) NOT NULL, + `reference` varchar(100) NOT NULL, + `email` varchar(100) NOT NULL, + `amount` decimal(15,2) NOT NULL, + `status` varchar(20) DEFAULT NULL, + `transaction_date` datetime NOT NULL, + `date_created` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP, + PRIMARY KEY (`id`), + KEY `invoice_id` (`invoice_id`), + KEY `reference` (`reference`), + KEY `status` (`status`) + ) ENGINE=InnoDB DEFAULT CHARSET=' . $CI->db->char_set . ';'); +} + +// Paystack payment logs table +if (!$CI->db->table_exists(db_prefix() . 'paystack_payment_logs')) { + $CI->db->query('CREATE TABLE `' . db_prefix() . 'paystack_payment_logs` ( + `id` int(11) NOT NULL AUTO_INCREMENT, + `transaction_id` int(11) DEFAULT NULL, + `invoice_id` int(11) DEFAULT NULL, + `amount` decimal(15,2) DEFAULT NULL, + `message` text, + `log_type` varchar(50) DEFAULT NULL, + `ip_address` varchar(45) DEFAULT NULL, + `user_agent` text, + `date_created` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP, + PRIMARY KEY (`id`), + KEY `transaction_id` (`transaction_id`), + KEY `invoice_id` (`invoice_id`), + KEY `log_type` (`log_type`) + ) ENGINE=InnoDB DEFAULT CHARSET=' . $CI->db->char_set . ';'); +} + +// Paystack webhook logs table +if (!$CI->db->table_exists(db_prefix() . 'paystack_webhook_logs')) { + $CI->db->query('CREATE TABLE `' . db_prefix() . 'paystack_webhook_logs` ( + `id` int(11) NOT NULL AUTO_INCREMENT, + `event` varchar(100) NOT NULL, + `payload` text, + `status` varchar(20) DEFAULT NULL, + `ip_address` varchar(45) DEFAULT NULL, + `date_created` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP, + PRIMARY KEY (`id`), + KEY `event` (`event`), + KEY `status` (`status`) + ) ENGINE=InnoDB DEFAULT CHARSET=' . $CI->db->char_set . ';'); +} + +// Add payment gateway options if they don't exist +$options = [ + ['name' => 'paystack_test_mode', 'value' => '1'], + ['name' => 'paystack_live_secret_key', 'value' => ''], + ['name' => 'paystack_live_public_key', 'value' => ''], + ['name' => 'paystack_test_secret_key', 'value' => ''], + ['name' => 'paystack_test_public_key', 'value' => ''], + ['name' => 'paystack_webhook_secret', 'value' => ''] +]; + +foreach ($options as $option) { + if (!get_option($option['name'])) { + add_option($option['name'], $option['value']); + } +} \ No newline at end of file diff --git a/language/english/paystack_lang.php b/language/english/paystack_lang.php new file mode 100644 index 0000000..5fbbb49 --- /dev/null +++ b/language/english/paystack_lang.php @@ -0,0 +1,127 @@ +CI = &get_instance(); + } + + /** + * Handle API errors + */ + public function handle_api_error($response, $context = '') + { + $error_data = [ + 'type' => 'api_error', + 'context' => $context, + 'message' => isset($response->message) ? $response->message : 'Unknown API error', + 'code' => isset($response->code) ? $response->code : null, + 'timestamp' => date('Y-m-d H:i:s') + ]; + + $this->log_error($error_data); + return $error_data; + } + + /** + * Handle validation errors + */ + public function handle_validation_error($errors, $context = '') + { + $error_data = [ + 'type' => 'validation_error', + 'context' => $context, + 'message' => is_array($errors) ? implode(', ', $errors) : $errors, + 'timestamp' => date('Y-m-d H:i:s') + ]; + + $this->log_error($error_data); + return $error_data; + } + + /** + * Handle system errors + */ + public function handle_system_error($exception, $context = '') + { + $error_data = [ + 'type' => 'system_error', + 'context' => $context, + 'message' => $exception->getMessage(), + 'file' => $exception->getFile(), + 'line' => $exception->getLine(), + 'trace' => $exception->getTraceAsString(), + 'timestamp' => date('Y-m-d H:i:s') + ]; + + $this->log_error($error_data); + return $error_data; + } + + /** + * Log error + */ + protected function log_error($error_data) + { + // Add to errors array + $this->errors[] = $error_data; + + // Log to database + $this->CI->load->model('paystack_model'); + $log_data = [ + 'message' => json_encode($error_data), + 'log_type' => 'error' + ]; + $this->CI->paystack_model->add_payment_log($log_data); + + // Log to system log if serious error + if ($error_data['type'] === 'system_error') { + log_message('error', 'Paystack Error: ' . $error_data['message']); + } + } + + /** + * Get last error + */ + public function get_last_error() + { + return end($this->errors); + } + + /** + * Get all errors + */ + public function get_all_errors() + { + return $this->errors; + } + + /** + * Clear errors + */ + public function clear_errors() + { + $this->errors = []; + } +} \ No newline at end of file diff --git a/libraries/Paystack_gateway.php b/libraries/Paystack_gateway.php new file mode 100644 index 0000000..e111697 --- /dev/null +++ b/libraries/Paystack_gateway.php @@ -0,0 +1,378 @@ +test_mode = get_option('test_mode_enabled'); + + // Load the model using the full module path + $this->ci->load->model('paystack/paystack_model'); + + $this->setId('paystack'); + $this->setName('Paystack'); + + /** + * Enhanced settings with additional security options + */ + $this->setSettings([ + [ + 'name' => 'paystack_secret_key', + 'encrypted' => true, + 'label' => 'Paystack Secret Key', + 'type' => 'input' + ], + [ + 'name' => 'paystack_public_key', + 'label' => 'Paystack Public Key', + 'type' => 'input' + ], + [ + 'name' => 'test_mode_enabled', + 'label' => 'Test Mode', + 'type' => 'yes_no', + 'default_value' => 1 + ], + [ + 'name' => 'currencies', + 'label' => 'settings_paymentmethod_currencies', + 'default_value' => 'NGN,USD,GHS,ZAR' + ], + [ + 'name' => 'webhook_secret', + 'encrypted' => true, + 'label' => 'Webhook Secret', + 'type' => 'input' + ], + [ + 'name' => 'max_retry_attempts', + 'label' => 'Maximum Retry Attempts', + 'type' => 'input', + 'default_value' => '3' + ] + ]); + } + + /** + * Process the payment with validation and security checks + */ + public function process_payment($data) + { + try { + // Log the payment data for debugging + $this->ci->paystack_model->add_payment_log([ + 'invoice_id' => $data['invoiceid'], + 'amount' => $data['amount'], + 'message' => 'Payment process initiated', + 'log_type' => 'debug' + ]); + + // Generate payment reference + $reference = 'INV_' . $data['invoiceid'] . '_' . time(); + + // Store transaction data + $transaction_data = [ + 'invoice_id' => $data['invoiceid'], + 'reference' => $reference, + 'email' => $data['client']->email, + 'amount' => $data['amount'], + 'status' => 'pending', + 'transaction_date' => date('Y-m-d H:i:s') + ]; + + $this->ci->db->insert(db_prefix() . 'paystack_transactions', $transaction_data); + + // Return HTML for the payment form + return $this->generate_payment_form($data, $reference); + + } catch (Exception $e) { + // Log any errors + $this->ci->paystack_model->add_payment_log([ + 'invoice_id' => $data['invoiceid'], + 'message' => 'Error: ' . $e->getMessage(), + 'log_type' => 'error' + ]); + + return false; + } + } + + private function generate_payment_form($data, $reference) + { + $public_key = $this->getSetting('paystack_public_key'); + + $form = ' +
+ + + +
'; + + return $form; + } + + /** + * Record payment with additional validation + */ + public function record_payment($invoice_id, $transaction) + { + // Validate transaction data + if (!$this->validate_transaction_data($transaction)) { + $this->log_error('Invalid transaction data for payment recording'); + return false; + } + + $payment_data = [ + 'amount' => $transaction['data']->amount / 100, + 'invoiceid' => $invoice_id, + 'paymentmode' => $this->getId(), + 'transactionid' => $transaction['data']->reference, + 'note' => 'Paystack Transaction Reference: ' . $transaction['data']->reference + ]; + + // Record payment + $this->ci->load->model('payments_model'); + $payment_id = $this->ci->payments_model->add($payment_data); + + if ($payment_id) { + $this->update_invoice_status($invoice_id); + $this->log_success($transaction['data']->reference, $payment_data['amount']); + return true; + } + + $this->log_error('Failed to record payment for invoice #' . $invoice_id); + return false; + } + + /** + * Make secure API request + */ + protected function make_api_request($endpoint, $method = 'GET', $data = null) + { + $url = $this->api_url . $endpoint; + $secret_key = $this->get_secret_key(); + + $headers = [ + 'Authorization: Bearer ' . $secret_key, + 'Cache-Control: no-cache' + ]; + + if ($data && in_array($method, ['POST', 'PUT'])) { + $headers[] = 'Content-Type: application/json'; + } + + $ch = curl_init(); + curl_setopt_array($ch, [ + CURLOPT_URL => $url, + CURLOPT_RETURNTRANSFER => true, + CURLOPT_SSL_VERIFYPEER => true, + CURLOPT_CUSTOMREQUEST => $method, + CURLOPT_HTTPHEADER => $headers + ]); + + if ($data && in_array($method, ['POST', 'PUT'])) { + curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data)); + } + + $response = curl_exec($ch); + $error = curl_error($ch); + $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); + curl_close($ch); + + $this->log_api_request($endpoint, $method, $data, $http_code, $error); + + if ($error) { + return [ + 'success' => false, + 'message' => $error + ]; + } + + $result = json_decode($response); + if (!$result || !$result->status) { + return [ + 'success' => false, + 'message' => isset($result->message) ? $result->message : 'Invalid response' + ]; + } + + return [ + 'success' => true, + 'data' => $result + ]; + } + + /** + * Validation methods + */ + protected function validate_payment_data($data) + { + $required_fields = ['amount', 'invoiceid', 'currency']; + foreach ($required_fields as $field) { + if (!isset($data[$field]) || empty($data[$field])) { + $this->log_error('Missing required field: ' . $field); + return false; + } + } + return true; + } + + protected function validate_payment_amount($amount) + { + return is_numeric($amount) && $amount > 0; + } + + protected function validate_payment_currency($currency) + { + $allowed_currencies = explode(',', get_option('currencies')); + return in_array(strtoupper($currency), $allowed_currencies); + } + + public function verify_transaction($reference) + { + $secret_key = $this->decryptSetting('paystack_secret_key'); + + $ch = curl_init(); + curl_setopt_array($ch, [ + CURLOPT_URL => "https://api.paystack.co/transaction/verify/" . rawurlencode($reference), + CURLOPT_RETURNTRANSFER => true, + CURLOPT_SSL_VERIFYPEER => true, + CURLOPT_HTTPHEADER => [ + "Authorization: Bearer " . $secret_key, + "Cache-Control: no-cache", + ], + ]); + + $response = curl_exec($ch); + $err = curl_error($ch); + curl_close($ch); + + if ($err) { + $this->ci->paystack_model->add_payment_log([ + 'message' => 'Verification Error: ' . $err, + 'log_type' => 'error' + ]); + return [ + 'success' => false, + 'message' => $err + ]; + } + + $result = json_decode($response); + return [ + 'success' => true, + 'data' => $result->data + ]; + } + + /** + * Security methods + */ + protected function encrypt_payment_data($data) + { + $this->ci->load->library('encryption'); + return $this->ci->encryption->encrypt(serialize($data)); + } + + protected function decrypt_payment_data($encrypted_data) + { + if (!$encrypted_data) return false; + + $this->ci->load->library('encryption'); + $decrypted = $this->ci->encryption->decrypt($encrypted_data); + return $decrypted ? unserialize($decrypted) : false; + } + + protected function get_secret_key() + { + $key_option = $this->test_mode ? 'paystack_test_secret_key' : 'paystack_live_secret_key'; + return $this->decryptSetting($key_option); + } + + /** + * Rate limiting + */ + protected function check_rate_limit($invoice_id) + { + $max_attempts = get_option('max_retry_attempts'); + $timeframe = 15; // minutes + + $this->ci->load->model('paystack_model'); + $attempts = $this->ci->paystack_model->get_recent_failed_attempts($invoice_id, $timeframe); + + return $attempts < $max_attempts; + } + + /** + * Logging methods + */ + protected function log_payment_attempt($invoice_id, $amount) + { + $this->ci->load->model('paystack_model'); + $this->ci->paystack_model->add_payment_log([ + 'invoice_id' => $invoice_id, + 'amount' => $amount, + 'log_type' => 'attempt', + 'message' => 'Payment attempt initiated' + ]); + } + + protected function log_api_request($endpoint, $method, $data, $http_code, $error = null) + { + $this->ci->load->model('paystack_model'); + $this->ci->paystack_model->add_payment_log([ + 'log_type' => 'api_request', + 'message' => json_encode([ + 'endpoint' => $endpoint, + 'method' => $method, + 'http_code' => $http_code, + 'error' => $error + ]) + ]); + } + + protected function log_success($reference, $amount) + { + $this->ci->load->model('paystack_model'); + $this->ci->paystack_model->add_payment_log([ + 'log_type' => 'success', + 'message' => "Payment successful - Reference: $reference, Amount: $amount" + ]); + } + + protected function log_error($message) + { + $this->ci->load->model('paystack_model'); + $this->ci->paystack_model->add_payment_log([ + 'log_type' => 'error', + 'message' => $message + ]); + } +} \ No newline at end of file diff --git a/models/Paystack_model.php b/models/Paystack_model.php new file mode 100644 index 0000000..f43fa18 --- /dev/null +++ b/models/Paystack_model.php @@ -0,0 +1,210 @@ +db->select('*'); + $this->db->from(db_prefix() . 'paystack_transactions'); + + if (isset($filter['start_date']) && $filter['start_date']) { + $this->db->where('date_created >=', $filter['start_date'] . ' 00:00:00'); + } + + if (isset($filter['end_date']) && $filter['end_date']) { + $this->db->where('date_created <=', $filter['end_date'] . ' 23:59:59'); + } + + $this->db->order_by('date_created', 'desc'); + return $this->db->get()->result_array(); + } + + /** + * Get payment statistics + */ + public function get_payment_stats() + { + $stats = [ + 'total_transactions' => 0, + 'successful_transactions' => 0, + 'failed_transactions' => 0, + 'total_amount' => 0, + 'success_rate' => 0 + ]; + + // Total transactions + $this->db->select('COUNT(*) as total'); + $this->db->from(db_prefix() . 'paystack_transactions'); + $stats['total_transactions'] = $this->db->get()->row()->total; + + // Successful transactions + $this->db->select('COUNT(*) as total, SUM(amount) as amount'); + $this->db->where('status', 'success'); + $this->db->from(db_prefix() . 'paystack_transactions'); + $result = $this->db->get()->row(); + $stats['successful_transactions'] = $result->total; + $stats['total_amount'] = $result->amount; + + // Failed transactions + $this->db->select('COUNT(*) as total'); + $this->db->where('status', 'failed'); + $this->db->from(db_prefix() . 'paystack_transactions'); + $stats['failed_transactions'] = $this->db->get()->row()->total; + + // Calculate success rate + if ($stats['total_transactions'] > 0) { + $stats['success_rate'] = ($stats['successful_transactions'] / $stats['total_transactions']) * 100; + } + + return $stats; + } + + /** + * Get monthly chart data + */ + public function get_monthly_chart_data() + { + $months = []; + for ($m = 11; $m >= 0; $m--) { + $months[date('Y-m', strtotime("-$m months"))] = [ + 'successful' => 0, + 'failed' => 0, + 'amount' => 0 + ]; + } + + $this->db->select('DATE_FORMAT(date_created, "%Y-%m") as month, status, COUNT(*) as total, SUM(amount) as amount'); + $this->db->from(db_prefix() . 'paystack_transactions'); + $this->db->where('date_created >= DATE_SUB(NOW(), INTERVAL 12 MONTH)'); + $this->db->group_by('month, status'); + $results = $this->db->get()->result_array(); + + foreach ($results as $result) { + if (isset($months[$result['month']])) { + if ($result['status'] == 'success') { + $months[$result['month']]['successful'] = $result['total']; + $months[$result['month']]['amount'] = $result['amount']; + } else { + $months[$result['month']]['failed'] = $result['total']; + } + } + } + + return $months; + } + + /** + * Get recent transactions + */ + public function get_recent_transactions($limit = 10) + { + $this->db->select('t.*, i.number as invoice_number'); + $this->db->from(db_prefix() . 'paystack_transactions t'); + $this->db->join(db_prefix() . 'invoices i', 'i.id = t.invoice_id', 'left'); + $this->db->order_by('t.date_created', 'desc'); + $this->db->limit($limit); + return $this->db->get()->result_array(); + } + + /** + * Add transaction log + */ + public function add_log($data) + { + $this->db->insert(db_prefix() . 'paystack_payment_logs', $data); + return $this->db->insert_id(); + } + + /** + * Get transaction by reference + */ + public function get_transaction_by_reference($reference) + { + $this->db->where('reference', $reference); + return $this->db->get(db_prefix() . 'paystack_transactions')->row_array(); + } + + /** + * Add webhook log + */ + public function add_webhook_log($event, $payload, $status) + { + return $this->db->insert(db_prefix() . 'paystack_webhook_logs', [ + 'event' => $event, + 'payload' => json_encode($payload), + 'status' => $status + ]); + } + + /** + * Update settings + */ + public function update_settings($data) + { + foreach ($data as $key => $value) { + update_option($key, $value); + } + return true; + } + + /** + * Get recent failed attempts + */ + public function get_recent_failed_attempts($invoice_id, $timeframe) + { + $this->db->where('invoice_id', $invoice_id); + $this->db->where('log_type', 'failed_attempt'); + $this->db->where('date_created >=', date('Y-m-d H:i:s', strtotime("-$timeframe minutes"))); + return $this->db->count_all_results(db_prefix() . 'paystack_payment_logs'); + } + + /** + * Add payment log with enhanced details + */ + public function add_payment_log($data) + { + // Ensure required fields + $data['date_created'] = date('Y-m-d H:i:s'); + + // Add client IP if available + if (!isset($data['ip_address']) && isset($_SERVER['REMOTE_ADDR'])) { + $data['ip_address'] = $_SERVER['REMOTE_ADDR']; + } + + // Add user agent if available + if (!isset($data['user_agent']) && isset($_SERVER['HTTP_USER_AGENT'])) { + $data['user_agent'] = $_SERVER['HTTP_USER_AGENT']; + } + + return $this->db->insert(db_prefix() . 'paystack_payment_logs', $data); + } + + /** + * Get transaction logs + */ + public function get_transaction_logs($transaction_id) + { + $this->db->where('transaction_id', $transaction_id); + $this->db->order_by('date_created', 'desc'); + return $this->db->get(db_prefix() . 'paystack_payment_logs')->result_array(); + } + + /** + * Clean old logs + */ + public function clean_old_logs($days = 90) + { + $this->db->where('date_created <', date('Y-m-d H:i:s', strtotime("-$days days"))); + return $this->db->delete(db_prefix() . 'paystack_payment_logs'); + } +} \ No newline at end of file diff --git a/paystack.php b/paystack.php new file mode 100644 index 0000000..bc85194 --- /dev/null +++ b/paystack.php @@ -0,0 +1,84 @@ +app_menu->add_sidebar_menu_item('paystack', [ + 'name' => 'Paystack', + 'position' => 30, + 'icon' => 'fa fa-credit-card', + ]); + + // Sub Menu Items + $CI->app_menu->add_sidebar_children_item('paystack', [ + 'slug' => 'paystack-dashboard', + 'name' => _l('dashboard'), + 'href' => admin_url('paystack/admin/dashboard'), + 'position' => 1, + ]); + + $CI->app_menu->add_sidebar_children_item('paystack', [ + 'slug' => 'paystack-transactions', + 'name' => _l('transactions'), + 'href' => admin_url('paystack/admin/transactions'), + 'position' => 5, + ]); + } + + // Settings Menu Item + if (has_permission('settings', '', 'view')) { + $CI->app_menu->add_setup_menu_item('paystack-settings', [ + 'name' => _l('paystack_settings'), + 'href' => admin_url('paystack/admin/settings'), + 'position' => 65, + 'icon' => 'fa fa-credit-card', + ]); + + $CI->app_menu->add_setup_menu_item('paystack-test-mode', [ + 'parent' => 'paystack-settings', + 'name' => _l('test_mode'), + 'href' => admin_url('paystack/admin/test_mode'), + 'position' => 5, + ]); + } +} + +// Register activation hook +register_activation_hook('paystack', 'paystack_activation_hook'); + +// Register payment gateway +register_payment_gateway('paystack_gateway', 'paystack'); + +// Add menu items +hooks()->add_action('admin_init', 'paystack_init_menu_items'); + +register_language_files(PAYSTACK_MODULE_NAME, [PAYSTACK_MODULE_NAME]); diff --git a/views/admin/dashboard.php b/views/admin/dashboard.php new file mode 100644 index 0000000..bd41197 --- /dev/null +++ b/views/admin/dashboard.php @@ -0,0 +1,178 @@ + + +
+
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+ + \ No newline at end of file diff --git a/views/admin/settings.php b/views/admin/settings.php new file mode 100644 index 0000000..59ee1ee --- /dev/null +++ b/views/admin/settings.php @@ -0,0 +1,104 @@ + + +
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+ + + \ No newline at end of file diff --git a/views/admin/test_mode.php b/views/admin/test_mode.php new file mode 100644 index 0000000..bac43ee --- /dev/null +++ b/views/admin/test_mode.php @@ -0,0 +1,228 @@ + + +
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:

+ 
Card Number: 4084 0840 8408 4081
+Expiry: 01/25
+CVV: 408
+

:

+ 
Card Number: 4084 0840 8408 4080
+Expiry: 01/25
+CVV: 408
+
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+ + \ No newline at end of file diff --git a/views/admin/transactions.php b/views/admin/transactions.php new file mode 100644 index 0000000..af3b6ff --- /dev/null +++ b/views/admin/transactions.php @@ -0,0 +1,169 @@ + + +
+
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+ +

+
+ + +
+
+ 'GET']); ?> +
+ input->get('start_date')); ?> +
+
+ input->get('end_date')); ?> +
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+ + + + + + \ No newline at end of file diff --git a/views/payment.php b/views/payment.php new file mode 100644 index 0000000..9c1af84 --- /dev/null +++ b/views/payment.php @@ -0,0 +1,101 @@ + +id)); ?> + + +
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+

id); ?>

+
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:
+ date); ?> +

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+ duedate); ?> +

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+ total, $invoice->currency_name); ?> +

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+ Secured by Paystack +
+
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+ + + + + \ No newline at end of file -- 2.47.1