Core: Wrong response from the webhook: 500 Internal Server Error

[htpasswd]

Required Information

• Operating system: Ubuntu 14.04
• PHP version: 5.5.9
• PHP Telegram Bot version: 0.48.0
• Using MySQL database: no
• Update Method: Webhook
• Self-signed certificate: no

Expected behaviour

WebHook should be set, and bot should receive and response to commands.

Actual behaviour

When open set.php in browser it shows Webhook was set but if check https://api.telegram.org/bot12345678:ytDWc-snTFNkdGRyGE/getWebhookInfo, it shows the next response:

{
  "ok": true,
  "result": {
    "url": "https://example.com/hook.php",
    "has_custom_certificate": false,
    "pending_update_count": 50,
    "last_error_date": 1503949200,
    "last_error_message": "Wrong response from the webhook: 500 Internal Server Error",
    "max_connections": 40
  }
}

Steps to reproduce

• Copy php-telegram-bot/example-bot to a folder on a server.
• Give the folder www-data permissions by sudo chown -R www-data:www-data ~/www && sudo chmod -R g+w ~/www
• Install composer.
• Change set.php,hook.php, composer.json with my own data like token to access HTTP API, botUsername and WebHook URL.
• Run composer install from the example-bot folder.
• Open https://mydomain.com/path/to/bot/set.php in browser to get Webhook was set response.
• Check https://api.telegram.org/bot12345678:BOT_API_TOKEN/getWebhookInfo

Extra details

Server uses not Self-signed certificate. Certificate was issued by Comodo.
Here is the code of set.php:

<?php
/**
 * README
 * This file is intended to set the webhook.
 * Uncommented parameters must be filled
 */
// Load composer
require_once __DIR__ . '/vendor/autoload.php';
// Add you bot's API key and name
$bot_api_key  = '12345678:AAN_yug_FGLKge-fayecJFC6fgo8YDIuh';
$bot_username = 'UsernameBot';
// Define the URL to your hook.php file
$hook_url     = 'https://www.example.com/path/to/hook.php';
try {
    // Create Telegram API object
    $telegram = new Longman\TelegramBot\Telegram($bot_api_key, $bot_username);
    // Set webhook
    $result = $telegram->setWebhook($hook_url);
    // To use a self-signed certificate, use this line instead
    //$result = $telegram->setWebhook($hook_url, ['certificate' => $certificate_path]);
    if ($result->isOk()) {
        echo $result->getDescription();
    }
} catch (Longman\TelegramBot\Exception\TelegramException $e) {
    echo $e->getMessage();
}

hook.php code:

<?php
/**
 * README
 * This configuration file is intended to run the bot with the webhook method.
 * Uncommented parameters must be filled
 *
 * Please note that if you open this file with your browser you'll get the "Input is empty!" Exception.
 * This is a normal behaviour because this address has to be reached only by the Telegram servers.
 */

// Load composer
require_once __DIR__ . '/vendor/autoload.php';

// Add you bot's API key and name
$bot_api_key  = '12345678:AAN_yug_FGLKge-fayecJFC6fgo8YDIuh';
$bot_username = 'UsernameBot';

// Define all IDs of admin users in this array (leave as empty array if not used)
$admin_users = [
    123,
];

// Define all paths for your custom commands in this array (leave as empty array if not used)
$commands_paths = [
    __DIR__ . '/Commands/',
];

// Enter your MySQL database credentials
//$mysql_credentials = [
//    'host'     => 'localhost',
//    'user'     => 'dbuser',
//    'password' => 'dbpass',
//    'database' => 'dbname',
//];

try {
    // Create Telegram API object
    $telegram = new Longman\TelegramBot\Telegram($bot_api_key, $bot_username);

    // Add commands paths containing your custom commands
    $telegram->addCommandsPaths($commands_paths);

    // Enable admin users
    $telegram->enableAdmins($admin_users);

    // Enable MySQL
    //$telegram->enableMySql($mysql_credentials);

    // Logging (Error, Debug and Raw Updates)
    Longman\TelegramBot\TelegramLog::initErrorLog(__DIR__ . "/{$bot_username}_error.log");
    Longman\TelegramBot\TelegramLog::initDebugLog(__DIR__ . "/{$bot_username}_debug.log");
    //Longman\TelegramBot\TelegramLog::initUpdateLog(__DIR__ . "/{$bot_username}_update.log");

    // If you are using a custom Monolog instance for logging, use this instead of the above
    //Longman\TelegramBot\TelegramLog::initialize($your_external_monolog_instance);

    // Set custom Upload and Download paths
    //$telegram->setDownloadPath(__DIR__ . '/Download');
    //$telegram->setUploadPath(__DIR__ . '/Upload');

    // Here you can set some command specific parameters
    // e.g. Google geocode/timezone api key for /date command
    //$telegram->setCommandConfig('date', ['google_api_key' => 'your_google_api_key_here']);

    // Botan.io integration
    //$telegram->enableBotan('your_botan_token');

    // Requests Limiter (tries to prevent reaching Telegram API limits)
    $telegram->enableLimiter();

    // Handle telegram webhook request
    $telegram->handle();


} catch (Longman\TelegramBot\Exception\TelegramException $e) {
    // Silence is golden!
    //echo $e;
    // Log telegram errors
    Longman\TelegramBot\TelegramLog::error($e);
} catch (Longman\TelegramBot\Exception\TelegramLogException $e) {
    // Silence is golden!
    // Uncomment this to catch log initialisation errors
    //echo $e;
}

composer.json

{
    "name": "UsernameBot/UsernameBot",
    "type": "project",
    "require": {
        "php": ">=5.5",
        "longman/telegram-bot": "^0.48.0"
    }
}

[jacklul]

It's getWebhookInfo.

[htpasswd]

Thanx, sorry, was my fault. But now it shows the SSL error:

337047686, error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed
I have read that I need some full chained certificate. Is this may cause the issue?

[jacklul]

SSL error on Telegram API or SSL error response from Telegram API? Telegram server must be able to verify the certificate as trusted.

[htpasswd]

SSL error when I check it by https://api.telegram.org/bot12345678:ytDWc-snTFNkdGRyGE/getWebhookInfo. I updated the issue.

[jacklul]

Then it's an issue with the certificate itself, I'm not a specialist here so I don't think I will be much of help...

[htpasswd]

I had to install a full chained certificate to my server. Just added SSLCertificateChainFile /path/to/cert.ca-bundle to the /etc/apache2/sites-available/example.com.conf file.

You can check if you need a full chained cert. by opening this link:
https://www.ssllabs.com/ssltest/analyze.html?d=www.example.com&hideResults=on

change example.com with your code. If you get Chain issues: incomplete then you need to add full chained cert.

But now I'm getting a new error: "last_error_message":"Wrong response from the webhook: 500 Internal Server Error" when checking getWebhookInfo. When I open hook.php in browser it writes Input is empty! in the log file.

[noplanman]

Input is empty! is correct when using the webhook :+1:

Add yourself as an admin and execute /debug command. Does that work?

Have you made any custom changes to the bot, or is it "out-of-the-box"?

Also, make sure the permissions of your files are correct.

(P.S. I have removed the URL to your hook.php in your first comment, please always keep it secret! Otherwise it's possible to impersonate Telegram and manipulate your bot 😰)

[htpasswd]

Thanx :) I thought I replaced all the links.
Yeah, I have seen it in "issues" section that Input is empty! is a correct answer.
I can't add myself into admins because the bot doesn't respond to any, even "/test" commands copied into "Commands" folder from the wiki.
I haven't done any changes to the code at all, excluding API ID, bot name and hook url.
Permissions are 0664 to all the files. Ownership has been set by:
sudo chown -R www-data:www-data ~/www
sudo chmod -R g+w ~/www

---

Update.
I have found the problem.
I tried to change the code in "Commands" section in the file "StartCommand.php". I changed it like in "wiki" to make it namespace Longman\TelegramBot\Commands\UserCommands; instead of SystemCommands. Sorry for bothering. Now everything works as it suposed to.

[noplanman]

It's no bother 👌 Main thing is that it works now!

[ghost]

I got "Wrong response from the webhook: 500 Internal Server Error"