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<?php |
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namespace Bmatovu\Ussd\Simulator; |
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use Bmatovu\Ussd\Contracts\Aggregator; |
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use GuzzleHttp\Client; |
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use GuzzleHttp\Exception\RequestException; |
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use GuzzleHttp\Exception\TransferException; |
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use Illuminate\Support\Str; |
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/** |
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* Comviva HTTP Pull Flares API |
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* Should work for MTN and Airtel. |
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*/ |
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class Comviva implements Aggregator |
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{ |
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public function call(string $uri, array $simulator): ?string |
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{ |
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try { |
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$response = (new Client())->request('POST', $uri, [ |
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'headers' => [ |
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'Accept' => 'text/xml', |
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'Content-Type' => 'text/xml; charset=UTF8', |
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], |
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'body' => $this->buildXml([ |
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'name' => 'request', |
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'attributes' => [ |
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'type' => 'pull', |
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], |
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], [ |
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'sessionId' => $simulator['session_id'], |
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'transactionId' => null, |
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'msisdn' => $simulator['phone_number'], |
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'newRequest' => $simulator['new_session'] ? 1 : 0, |
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'flowState' => $simulator['new_session'] ? 'FD' : 'FE', |
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'subscriberInput' => $simulator['input'], // $simulator['new_session'] ? substr($simulator['input'], 4) : $simulator['input'], |
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]), |
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]); |
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$body = (string) $response->getBody(); |
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$body = new \SimpleXMLElement($body); |
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$flow = $body->freeflow->freeflowState->__toString(); |
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$applicationResponse = $body->applicationResponse->__toString(); |
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if ('FB' === $flow) { |
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throw new \Exception($applicationResponse); |
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} |
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} catch (\Throwable $th) { |
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throw new \Exception(Str::limit($th->getMessage(), 120, '...')); |
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} |
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// } catch (RequestException $ex) { |
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// $response = $ex->getResponse(); |
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// $body = (string) $response->getBody(); |
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// $message = $body ?? $response->getReasonPhrase(); |
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// throw new \Exception(sprintf('%s . %s', $message, $response->getStatusCode())); |
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// } catch (TransferException $ex) { |
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// throw new \Exception(sprintf('%s . %s', $ex->getMessage(), $ex->getCode())); |
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// } |
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return $applicationResponse; |
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} |
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protected function buildXml(array|string $root, array $elements): string |
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{ |
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$domDoc = new \DOMDocument('1.0', 'UTF-8'); |
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$domDoc->xmlStandalone = true; |
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$domDoc->preserveWhiteSpace = false; |
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$domDoc->formatOutput = true; |
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if (\is_string($root)) { |
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$rootEl = $domDoc->createElement($root); |
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} else { |
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$rootEl = $domDoc->createElement($root['name']); |
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foreach ($root['attributes'] ?? [] as $key => $value) { |
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$rootEl->setAttribute($key, (string) $value); |
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} |
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} |
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foreach ($elements as $key => $value) { |
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if (! \is_array($value)) { |
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$elem = $domDoc->createElement($key, (string) $value); |
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} else { |
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$elem = $domDoc->createElement($key); |
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foreach ($value as $key => $value) { |
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$subElem = $domDoc->createElement($key, (string) $value); |
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$elem->appendChild($subElem); |
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} |
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} |
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$rootEl->appendChild($elem); |
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} |
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$domDoc->appendChild($rootEl); |
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return $domDoc->saveXML(); |
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} |
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} |
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mtvbrianking /
laravel-ussd
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