satellitenhimmel gefixt

public/satellitenhimmel.php

@@ -39,6 +39,54 @@ function h(?string $value): string
     return htmlspecialchars((string)$value, ENT_QUOTES, 'UTF-8');
 }
 
+function getPythonCandidates(): array
+{
+    if (PHP_OS_FAMILY === 'Windows') {
+        return ['python', 'py'];
+    }
+
+    return ['/usr/bin/python3', '/usr/bin/python', 'python3', 'python'];
+}
+
+function runPythonCommand(string $scriptPath, array $args): array
+{
+    putenv('PYTHONUTF8=1');
+    putenv('PYTHONIOENCODING=utf-8');
+
+    $escapedArguments = array_map('escapeshellarg', array_merge([$scriptPath], $args));
+    $lastError = 'Python konnte nicht gestartet werden.';
+
+    foreach (getPythonCandidates() as $pythonBinary) {
+        $command = $pythonBinary . ' ' . implode(' ', $escapedArguments) . ' 2>&1';
+        $output = [];
+        $resultCode = 0;
+        exec($command, $output, $resultCode);
+
+        $joined = trim(implode("\n", $output));
+        $decoded = json_decode($joined, true);
+
+        if (is_array($decoded)) {
+            return [
+                'ok' => (bool) ($decoded['ok'] ?? false),
+                'data' => $decoded,
+                'raw' => $joined,
+                'command' => $command,
+            ];
+        }
+
+        if ($joined !== '') {
+            $lastError = $joined;
+        } elseif ($resultCode !== 0) {
+            $lastError = 'Fehlercode ' . $resultCode . ' bei ' . $pythonBinary;
+        }
+    }
+
+    return [
+        'ok' => false,
+        'error' => $lastError,
+    ];
+}
+
 // ── Satelliten aus DB laden ──────────────────────────────────────────────────
 
 function tleChecksum(string $line): int
@@ -291,34 +339,29 @@ if (!empty($satellitePayload) && !empty($defaultLocation['latitude'])) {
     $windowStart = $dayStart->setTimezone(new DateTimeZone('UTC'))->format(DateTime::ATOM);
     $windowEnd   = $dayEnd->setTimezone(new DateTimeZone('UTC'))->format(DateTime::ATOM);
 
-    $scriptPath    = realpath(__DIR__ . '/py/api.py');
-    $satellitesJson = json_encode($satellitePayload, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
-
-    $args = [
-        '/usr/bin/python',
-        escapeshellarg($scriptPath),
-        escapeshellarg('satellite_passes'),
-        escapeshellarg((string)$lat),
-        escapeshellarg((string)$lon),
-        escapeshellarg((string)$elev),
-        escapeshellarg($tz),
-        escapeshellarg($windowStart),
-        escapeshellarg($windowEnd),
-        escapeshellarg($satellitesJson),
-    ];
-
-    $command = implode(' ', $args) . ' 2>&1';
-    $output  = [];
-    $code    = 0;
-    exec($command, $output, $code);
-
-    $joined  = implode('', $output);
-    $decoded = json_decode($joined, true);
-
-    if (is_array($decoded) && ($decoded['ok'] ?? false)) {
-        $pythonResult = $decoded;
+    $scriptPath = realpath(__DIR__ . '/py/api.py');
+    if ($scriptPath === false) {
+        $pythonError = 'Das Python-Skript für den Satellitenhimmel wurde nicht gefunden.';
     } else {
-        $pythonError = $joined ?: 'Leere Antwort von Python.';
+        $satellitesJson = json_encode($satellitePayload, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
+        $satellitesPayload = base64_encode((string)$satellitesJson);
+
+        $pythonCall = runPythonCommand($scriptPath, [
+            'satellite_passes',
+            (string)$lat,
+            (string)$lon,
+            (string)$elev,
+            $tz,
+            $windowStart,
+            $windowEnd,
+            $satellitesPayload,
+        ]);
+
+        if ($pythonCall['ok'] ?? false) {
+            $pythonResult = $pythonCall['data'];
+        } else {
+            $pythonError = $pythonCall['raw'] ?? $pythonCall['error'] ?? 'Leere Antwort von Python.';
+        }
     }
 }
 ?>