405 lines
12 KiB
PHP
405 lines
12 KiB
PHP
<?php
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/*
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* This file is part of RaspiSMS.
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*
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* (c) Pierre-Lin Bonnemaison <plebwebsas@gmail.com>
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*
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* This source file is subject to the GPL-3.0 license that is bundled
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* with this source code in the file LICENSE.
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*/
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namespace adapters;
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/**
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* Interface for phones adapters
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* Phone's adapters allow RaspiSMS to use a platform to communicate with a phone number.
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* Its an adapter between internal and external code, as an API, command line software, physical modem, etc.
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*
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* All Phone Adapters must implement this interface
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*/
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class GammuAdapter implements AdapterInterface
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{
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/**
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* Datas used to configure interaction with the implemented service. (e.g : Api credentials, ports numbers, etc.).
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*/
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private $datas;
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/**
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* Adapter constructor, called when instanciated by RaspiSMS.
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*
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* @param json string $datas : JSON string of the datas to configure interaction with the implemented service
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*/
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public function __construct(string $datas)
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{
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$this->datas = json_decode($datas, true);
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}
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/**
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* Classname of the adapter.
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*/
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public static function meta_classname(): string
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{
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return __CLASS__;
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}
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/**
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* Uniq name of the adapter
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* It should be the classname of the adapter un snakecase.
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*/
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public static function meta_uid(): string
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{
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return 'gammu_adapter';
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}
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/**
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* Name of the adapter.
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* It should probably be the name of the service it adapt (e.g : Gammu SMSD, OVH SMS, SIM800L, etc.).
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*/
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public static function meta_name(): string
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{
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return 'Gammu';
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}
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/**
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* Description of the adapter.
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* A short description of the service the adapter implements.
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*/
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public static function meta_description(): string
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{
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return 'Utilisation du logiciel Gammu qui doit être installé sur le serveur et configuré. Voir https://wammu.eu.';
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}
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/**
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* List of entries we want in datas for the adapter.
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*
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* @return array : Every line is a field as an array with keys : name, title, description, required
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*/
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public static function meta_datas_fields(): array
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{
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return [
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[
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'name' => 'config_file',
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'title' => 'Fichier de configuration',
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'description' => 'Chemin vers le fichier de configuration que Gammu devra utilisé pour se connecter au téléphone.',
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'required' => true,
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],
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[
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'name' => 'pin',
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'title' => 'Code PIN',
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'description' => 'Code PIN devant être utilisé pour activer la carte SIM (laisser vide pour ne pas utiliser de code PIN).',
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'required' => false,
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],
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];
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}
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/**
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* Does the implemented service support reading smss.
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*/
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public static function meta_support_read(): bool
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{
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return true;
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}
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/**
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* Does the implemented service support flash smss.
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*/
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public static function meta_support_flash(): bool
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{
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return false;
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}
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/**
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* Does the implemented service support status change.
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*/
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public static function meta_support_status_change(): bool
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{
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return false;
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}
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/**
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* Does the implemented service support reception callback.
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*/
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public static function meta_support_reception(): bool
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{
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return false;
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}
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/**
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* Method called to send a SMS to a number.
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*
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* @param string $destination : Phone number to send the sms to
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* @param string $text : Text of the SMS to send
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* @param bool $flash : Is the SMS a Flash SMS
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*
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* @return array : [
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* bool 'error' => false if no error, true else
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* ?string 'error_message' => null if no error, else error message
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* ?string 'uid' => Uid of the sms created on success, null on error
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* ]
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*/
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public function send(string $destination, string $text, bool $flash = false)
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{
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$response = [
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'error' => false,
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'error_message' => null,
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'uid' => null,
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];
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if (!$this->unlock_sim())
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{
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$response['error'] = true;
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$response['error_message'] = 'Cannot unlock SIM.';
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return $response;
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}
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$command_parts = [
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'gammu',
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'--config',
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escapeshellarg($this->datas['config_file']),
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'sendsms',
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'TEXT',
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escapeshellarg($destination),
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'-text',
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escapeshellarg($text),
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'-validity',
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'MAX',
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'-autolen',
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mb_strlen($text),
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];
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if ($flash)
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{
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$command_parts[] = '-flash';
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}
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$result = $this->exec_command($command_parts);
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if (0 !== $result['return'])
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{
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$response['error'] = true;
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$response['error_message'] = 'Gammu command failed.';
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return $response;
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}
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$find_ok = $this->search_for_string($result['output'], 'ok');
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if (!$find_ok)
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{
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$response['error'] = true;
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$response['error_message'] = 'Cannot find output OK.';
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return $response;
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}
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$uid = false;
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foreach ($result['output'] as $line)
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{
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$matches = [];
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preg_match('#reference=([0-9]+)#u', $line, $matches);
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if ($matches[1] ?? false)
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{
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$uid = $matches[1];
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break;
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}
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}
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if (false === $uid)
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{
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$response['error'] = true;
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$response['error_message'] = 'Cannot retrieve sms uid.';
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return $response;
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}
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$response['uid'] = $uid;
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return $response;
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}
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/**
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* Method called to read SMSs of the number.
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*
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* @return array : [
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* bool 'error' => false if no error, true else
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* ?string 'error_message' => null if no error, else error message
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* array 'sms' => Array of the sms reads
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* ]
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*/
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public function read(): array
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{
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$response = [
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'error' => false,
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'error_message' => null,
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'smss' => [],
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];
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if (!$this->unlock_sim())
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{
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$response['error'] = true;
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$response['error_message'] = 'Cannot unlock sim.';
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return $response;
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}
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$command_parts = [
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PWD . '/bin/gammu_get_unread_sms.py',
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escapeshellarg($this->datas['config_file']),
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];
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$return = $this->exec_command($command_parts);
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if (0 !== $return['return'])
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{
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$response['error'] = true;
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$response['error_message'] = 'Gammu command return failed.';
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return $response;
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}
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foreach ($return['output'] as $line)
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{
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$decode = json_decode($line, true);
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if (null === $decode)
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{
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continue;
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}
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$response['smss'][] = [
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'at' => $decode['at'],
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'text' => $decode['text'],
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'origin' => $decode['number'],
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];
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}
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return $response;
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}
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/**
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* Method called to verify if the adapter is working correctly
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* should be use for exemple to verify that credentials and number are both valid.
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*
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* @return bool : False on error, true else
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*/
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public function test(): bool
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{
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//Always return true as we cannot test because we would be needing a root account
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return true;
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}
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/**
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* Method called on reception of a status update notification for a SMS.
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*
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* @return mixed : False on error, else array ['uid' => uid of the sms, 'status' => New status of the sms (\models\Sended::STATUS_UNKNOWN, \models\Sended::STATUS_DELIVERED, \models\Sended::STATUS_FAILED)]
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*/
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public static function status_change_callback()
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{
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return false;
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}
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/**
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* Method called on reception of a sms notification.
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*
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* @return array : [
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* bool 'error' => false on success, true on error
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* ?string 'error_message' => null on success, error message else
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* array 'sms' => array [
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* string 'at' : Recepetion date format Y-m-d H:i:s,
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* string 'text' : SMS body,
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* string 'origin' : SMS sender,
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* ]
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*
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* ]
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*/
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public static function reception_callback(): array
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{
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return [];
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}
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/**
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* Function to unlock pin.
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*
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* @return bool : False on error, true else
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*/
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private function unlock_sim(): bool
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{
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if (!$this->datas['pin'])
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{
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return true;
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}
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$command_parts = [
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'gammu',
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'--config',
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escapeshellarg($this->datas['config_file']),
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'entersecuritycode',
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'PIN',
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escapeshellarg($this->datas['pin']),
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];
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$result = $this->exec_command($command_parts);
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//Check security status
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$command_parts = [
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'gammu',
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'--config',
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escapeshellarg($this->datas['config_file']),
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'getsecuritystatus',
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];
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$result = $this->exec_command($command_parts);
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if (0 !== $result['return'])
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{
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return false;
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}
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return $this->search_for_string($result['output'], 'nothing');
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}
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/**
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* Function to execute a command and transmit it to Gammu.
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*
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* @param array $command_parts : Commands parts to be join with a space
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*
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* @return array : ['return' => int:return code of command, 'output' => array:each raw is a line of the output]
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*/
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private function exec_command(array $command_parts): array
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{
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//Add redirect of error to stdout
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$command_parts[] = '2>&1';
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$command = implode(' ', $command_parts);
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$output = [];
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$return_var = null;
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exec($command, $output, $return_var);
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return ['return' => (int) $return_var, 'output' => $output];
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}
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/**
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* Function to search a string in the output of an executer command.
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*
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* @param array $output : Text to search in where each raw is a line
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* @param string $search : Text to search for
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*
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* @return bool : True if found, false else
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*/
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private function search_for_string(array $output, string $search): bool
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{
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$find = false;
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foreach ($output as $line)
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{
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$find = mb_stristr($line, $search);
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if (false !== $find)
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{
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break;
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}
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}
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return (bool) $find;
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}
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}
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