Delivery confirmations and incoming SMS

Delivery confirmations and incoming SMS (answers)

Delivery reports are sent to DELIVERY_URL via HTTP method GET. See the table of parameters for this command. See also “AppID” in the table of parameters.

Delivery confirmation: Parameters

PARAMETER NAME	DESCRIPTION	povinný
status	See the table with delivery confirmation status	Yes
smsID	Unique smsID of message	No
to	Phone number of the recipient in international format without the "+" (e.g. 420777777777)	No
price	Price of SMS in credits	No
channel	Channel used to deliver message	No
date	Sending and receiving time (CET timezone), e.g.: 1812141317;1812141318 (14th December 2018, 13:17 and 14th December 2018, 13:18)	No
from	Only if status=10, ID of sender in incoming SMS in international format	No
message	Only if status=10, Text of incoming SMS in UTF-8 encoding	No

Delivery confirmation: Status

STATUS	DESCRIPTION
1	SMS successfully delivered
2	SMS buffered on SMSC. SMS will be delivered later. Recipient is unavailable.
3	SMS not delivered. Unknown/unavailable recipient.
10	Incoming SMS or SMS answer (contact us for more information)
13	Message seen (Viber only)

Delivery confirmation: Status 10 (Incoming SMS or SMS answer)

PARAMETER NAME	DESCRIPTION
status	Status = 10
smsdetails	SMS details including protocol used along with received date and time
from	Senders phone number
channel	Channel used to deliver message
to	Recipient's phone number
message	Text of incoming SMS in UTF-8 encoding
udh	user data header

PHP 5.4 procedural

<?php
$status_list = [
    1 => 'delivered',
    2 => 'unavailable',
    3 => 'not_delivered'
];

$status = filter_input(INPUT_GET, 'status', FILTER_SANITIZE_NUMBER_INT);

if($status && (int) $status === 10)
{
    $from    = filter_input(INPUT_GET, 'from', FILTER_SANITIZE_STRING);
    $message = filter_input(INPUT_GET, 'message', FILTER_SANITIZE_STRING);

    file_put_contents(__DIR__."/inbox.log", '['.date('Y-m-d H-i-s').'] ' .sprintf('From: [%s] Message: [%s]', $from, $message) . PHP_EOL,FILE_APPEND);
    exit(0);
}
elseif($status && in_array((int)$status, array_keys($status_list)))
{
    $price  = filter_input(INPUT_GET, 'price', FILTER_SANITIZE_NUMBER_FLOAT);
    $sms_id = filter_input(INPUT_GET, 'smsID', FILTER_SANITIZE_STRING);

    file_put_contents(__DIR__."/delivery.log", '['.date('Y-m-d H-i-s').'] ' .sprintf('Message ID [%s] is in the status [%s], Price: [%f]', $sms_id, $status_list[$status], $price) . PHP_EOL,FILE_APPEND);
    exit(0);
}
else
{
    echo "invalid status";
    exit(1);
}

PHP 7.1 object-oriented

<?php declare(strict_types=1);

class Delivery
{
    const STATUS_LIST = [
        1 => 'delivered',
        2 => 'unavailable',
        3 => 'not_delivered'
    ];

    public function __construct()
    {
        $status = $this->input('status', 'int');

        if($status === 10 /** INBOX */)
        {
            $this->inbox();
        }
        elseif(in_array($status, array_keys(self::STATUS_LIST)))
        {
            $this->delivery(self::STATUS_LIST[$status]);
        }
        else
        {
            $this->log('Unknown status: '.(string) $status, 'error');
        }
    }

    public function inbox(): void
    {
        $from    = $this->input('from');
        $message = $this->input('message');

        $this->log(sprintf('From: [%s] Message: [%s]', $from, $message), 'inbox');
    }

    public function delivery(string $status): void
    {
        $price  = $this->input('price', 'float');
        $sms_id = $this->input('smsID');

        $this->log(sprintf('Message ID [%s] is in the status [%s], Price: [%f]', $sms_id, $status, $price), 'delivery');
    }

    private function log(string $message, string $type): void
    {
        $message = '['.date('Y-m-d H-i-s').'] ' . $message . PHP_EOL;

        echo $message;
        file_put_contents(__DIR__."/$type.log", $message,FILE_APPEND);

        exit((int) $type === 'error');
    }

    private function input(string $name, string $type = 'string')
    {
        if($type === 'string')
        {
            $value = filter_input(INPUT_GET, $name, FILTER_SANITIZE_STRING);
            return $value ? (string) $value : '';
        }
        else if($type === 'int')
        {
            $value = filter_input(INPUT_GET, $name, FILTER_SANITIZE_NUMBER_INT);
            return $value ? (int) $value : 0;
        }
        else if($type === 'float')
        {
            $value = filter_input(INPUT_GET, $name, FILTER_SANITIZE_NUMBER_FLOAT);
            return $value ? (float) $value : 0.0;
        }

        return null;
    }
};

new \Delivery();