300 lines
10 KiB
PHP
300 lines
10 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* Telegram-Transportfunktionen fuer Bot-Nachrichten und Dateiversand.
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*
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* Diese Datei kapselt die HTTP-Kommunikation mit der Telegram Bot API,
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* sowohl fuer JSON-Requests als auch fuer Multipart-Uploads von Bildern
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* und Dokumenten. Die Cron-Tasks muessen dadurch keine Request-Details kennen.
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*/
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function telegramHttpPostJson(string $url, array $payload): array
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{
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$jsonPayload = json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
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if ($jsonPayload === false) {
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return [
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'ok' => false,
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'error' => 'Die Telegram-Anfrage konnte nicht als JSON kodiert werden.',
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'body' => null,
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];
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}
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if (DIRECTORY_SEPARATOR === '\\' && function_exists('shell_exec')) {
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$urlBase64 = base64_encode($url);
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$payloadBase64 = base64_encode($jsonPayload);
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$powerShellScript = str_replace(
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['__URL_BASE64__', '__PAYLOAD_BASE64__'],
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[$urlBase64, $payloadBase64],
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<<<'PS'
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$ErrorActionPreference = 'Stop'
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$url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('__URL_BASE64__'))
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$body = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('__PAYLOAD_BASE64__'))
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try {
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$response = Invoke-RestMethod -Method Post -Uri $url -ContentType 'application/json' -Body $body
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[PSCustomObject]@{
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ok = $true
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body = ($response | ConvertTo-Json -Depth 20 -Compress)
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error = ''
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} | ConvertTo-Json -Compress
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} catch {
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$stream = $null
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$responseBody = ''
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if ($_.Exception.Response) {
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try {
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$stream = $_.Exception.Response.GetResponseStream()
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if ($stream) {
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$reader = New-Object System.IO.StreamReader($stream)
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$responseBody = $reader.ReadToEnd()
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}
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} catch {
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} finally {
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if ($stream) {
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$stream.Dispose()
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}
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}
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}
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[PSCustomObject]@{
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ok = $false
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body = $responseBody
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error = $_.Exception.Message
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} | ConvertTo-Json -Compress
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}
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PS
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);
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$encodedCommandBinary = function_exists('iconv')
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? iconv('UTF-8', 'UTF-16LE', $powerShellScript)
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: $powerShellScript;
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$encodedCommand = base64_encode($encodedCommandBinary === false ? $powerShellScript : $encodedCommandBinary);
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$command = 'powershell -NoProfile -ExecutionPolicy Bypass -EncodedCommand ' . $encodedCommand;
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$rawOutput = shell_exec($command);
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if ($rawOutput !== null && trim($rawOutput) !== '') {
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$decodedShell = json_decode(trim($rawOutput), true);
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if (is_array($decodedShell)) {
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return [
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'ok' => (bool) ($decodedShell['ok'] ?? false),
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'error' => $decodedShell['error'] ?? null,
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'body' => $decodedShell['body'] ?? null,
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];
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}
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}
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}
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if (function_exists('curl_init')) {
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$ch = curl_init($url);
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curl_setopt_array($ch, [
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CURLOPT_POST => true,
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_HTTPHEADER => [
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'Content-Type: application/json',
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'Content-Length: ' . strlen($jsonPayload),
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],
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CURLOPT_POSTFIELDS => $jsonPayload,
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CURLOPT_TIMEOUT => 20,
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]);
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$body = curl_exec($ch);
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$error = curl_error($ch);
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curl_close($ch);
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return [
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'ok' => $body !== false,
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'error' => $body === false ? $error : null,
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'body' => $body !== false ? $body : null,
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];
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}
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$context = stream_context_create([
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'http' => [
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'method' => 'POST',
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'header' => implode("\r\n", [
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'Content-Type: application/json',
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'Content-Length: ' . strlen($jsonPayload),
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]),
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'content' => $jsonPayload,
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'timeout' => 20,
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'ignore_errors' => true,
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],
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]);
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$body = @file_get_contents($url, false, $context);
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return [
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'ok' => $body !== false,
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'error' => $body === false ? 'HTTP-Request fehlgeschlagen.' : null,
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'body' => $body !== false ? $body : null,
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];
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}
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function telegramHttpPostMultipart(string $url, array $fields, string $fileField, string $filePath, ?string $fileName = null): array
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{
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if (!is_file($filePath)) {
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return [
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'ok' => false,
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'error' => 'Datei fuer Telegram-Versand nicht gefunden: ' . $filePath,
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'body' => null,
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];
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}
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if (DIRECTORY_SEPARATOR === '\\' && function_exists('shell_exec')) {
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$urlBase64 = base64_encode($url);
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$filePathBase64 = base64_encode($filePath);
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$fileNameBase64 = base64_encode((string) ($fileName ?? basename($filePath)));
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$fieldsBase64 = base64_encode(json_encode($fields, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES) ?: '{}');
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$fileFieldBase64 = base64_encode($fileField);
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$powerShellScript = str_replace(
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['__URL_BASE64__', '__FILE_PATH_BASE64__', '__FILE_NAME_BASE64__', '__FIELDS_BASE64__', '__FILE_FIELD_BASE64__'],
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[$urlBase64, $filePathBase64, $fileNameBase64, $fieldsBase64, $fileFieldBase64],
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<<<'PS'
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$ErrorActionPreference = 'Stop'
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$url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('__URL_BASE64__'))
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$filePath = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('__FILE_PATH_BASE64__'))
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$fileName = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('__FILE_NAME_BASE64__'))
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$fileField = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('__FILE_FIELD_BASE64__'))
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$fieldsJson = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('__FIELDS_BASE64__'))
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$fieldsObject = $fieldsJson | ConvertFrom-Json
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$form = @{}
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foreach ($property in $fieldsObject.PSObject.Properties) {
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$form[$property.Name] = [string] $property.Value
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}
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$form[$fileField] = Get-Item -LiteralPath $filePath
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try {
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$response = Invoke-RestMethod -Method Post -Uri $url -Form $form
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[PSCustomObject]@{
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ok = $true
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body = ($response | ConvertTo-Json -Depth 20 -Compress)
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error = ''
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} | ConvertTo-Json -Compress
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} catch {
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[PSCustomObject]@{
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ok = $false
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body = ''
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error = $_.Exception.Message
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} | ConvertTo-Json -Compress
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}
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PS
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);
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$encodedCommandBinary = function_exists('iconv')
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? iconv('UTF-8', 'UTF-16LE', $powerShellScript)
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: $powerShellScript;
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$encodedCommand = base64_encode($encodedCommandBinary === false ? $powerShellScript : $encodedCommandBinary);
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$command = 'powershell -NoProfile -ExecutionPolicy Bypass -EncodedCommand ' . $encodedCommand;
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$rawOutput = shell_exec($command);
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if ($rawOutput !== null && trim($rawOutput) !== '') {
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$decodedShell = json_decode(trim($rawOutput), true);
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if (is_array($decodedShell)) {
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return [
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'ok' => (bool) ($decodedShell['ok'] ?? false),
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'error' => $decodedShell['error'] ?? null,
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'body' => $decodedShell['body'] ?? null,
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];
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}
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}
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}
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if (function_exists('curl_init')) {
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$payload = $fields;
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$extension = strtolower((string) pathinfo($filePath, PATHINFO_EXTENSION));
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$mimeType = match ($extension) {
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'png' => 'image/png',
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'jpg', 'jpeg' => 'image/jpeg',
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'svg' => 'image/svg+xml',
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default => 'application/octet-stream',
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};
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$payload[$fileField] = new CURLFile($filePath, $mimeType, $fileName ?? basename($filePath));
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$ch = curl_init($url);
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curl_setopt_array($ch, [
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CURLOPT_POST => true,
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_POSTFIELDS => $payload,
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CURLOPT_TIMEOUT => 30,
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]);
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$body = curl_exec($ch);
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$error = curl_error($ch);
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curl_close($ch);
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return [
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'ok' => $body !== false,
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'error' => $body === false ? $error : null,
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'body' => $body !== false ? $body : null,
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];
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}
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return [
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'ok' => false,
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'error' => 'Multipart-Versand ist ohne curl nicht verfuegbar.',
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'body' => null,
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];
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}
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function telegramSendBotMessage(array $telegramConfig, string $chatId, string $messageText): bool
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{
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$botToken = trim((string) ($telegramConfig['bot_token'] ?? ''));
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if ($botToken === '' || $chatId === '' || $messageText === '') {
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return false;
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}
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$response = telegramHttpPostJson(
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'https://api.telegram.org/bot' . $botToken . '/sendMessage',
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[
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'chat_id' => $chatId,
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'text' => appendTelegramServiceFooter($messageText),
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]
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);
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return (bool) ($response['ok'] ?? false);
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}
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function telegramSendBotDocument(array $telegramConfig, string $chatId, string $filePath, string $caption = ''): bool
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{
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$botToken = trim((string) ($telegramConfig['bot_token'] ?? ''));
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if ($botToken === '' || $chatId === '' || !is_file($filePath)) {
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return false;
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}
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$response = telegramHttpPostMultipart(
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'https://api.telegram.org/bot' . $botToken . '/sendDocument',
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[
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'chat_id' => $chatId,
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'caption' => appendTelegramServiceFooter($caption),
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],
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'document',
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$filePath,
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basename($filePath)
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);
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return (bool) ($response['ok'] ?? false);
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}
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function telegramSendBotPhoto(array $telegramConfig, string $chatId, string $filePath, string $caption = ''): bool
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{
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$botToken = trim((string) ($telegramConfig['bot_token'] ?? ''));
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if ($botToken === '' || $chatId === '' || !is_file($filePath)) {
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return false;
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}
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$response = telegramHttpPostMultipart(
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'https://api.telegram.org/bot' . $botToken . '/sendPhoto',
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[
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'chat_id' => $chatId,
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'caption' => appendTelegramServiceFooter($caption),
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],
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'photo',
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$filePath,
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basename($filePath)
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);
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return (bool) ($response['ok'] ?? false);
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}
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