Fix throttled status web access

public/api.php

@@ -204,22 +204,51 @@ function throttled_event_status(?int $flags, string $raw, int $activeBit, int $s
     ];
 }
 
-function throttled_statuses(): array
+function read_throttled_flags(): array
 {
     $result = sh(['/usr/bin/vcgencmd', 'get_throttled'], false, 3);
     $raw = trim((string)$result['out']);
     $flags = null;
+    $source = 'direct';
 
     if ((int)$result['code'] === 0 && preg_match('/throttled=0x([0-9a-f]+)/i', $raw, $m)) {
         $flags = hexdec($m[1]);
     }
 
+    if ($flags === null) {
+        $sudoResult = sh(['/usr/bin/vcgencmd', 'get_throttled'], true, 3);
+        $sudoRaw = trim((string)$sudoResult['out']);
+        if ((int)$sudoResult['code'] === 0 && preg_match('/throttled=0x([0-9a-f]+)/i', $sudoRaw, $m)) {
+            $result = $sudoResult;
+            $raw = $sudoRaw;
+            $flags = hexdec($m[1]);
+            $source = 'sudo';
+        }
+    }
+
+    return [
+        'result' => $result,
+        'raw' => $raw,
+        'flags' => $flags,
+        'source' => $source,
+    ];
+}
+
+function throttled_statuses(): array
+{
+    $read = read_throttled_flags();
+    $raw = (string)$read['raw'];
+    $flags = $read['flags'];
+    $source = (string)$read['source'];
+
     $lowVoltage = throttled_event_status($flags, $raw, 0x1, 0x10000, '/tmp/control-low-voltage-state.json');
     $throttling = throttled_event_status($flags, $raw, 0x4, 0x40000, '/tmp/control-throttling-state.json');
 
+    $lowVoltage['source'] = $source;
     $lowVoltage['freq_capped'] = $flags !== null && (bool)($flags & 0x2);
     $lowVoltage['throttled'] = $flags !== null && (bool)($flags & 0x4);
     $lowVoltage['soft_temp_limit'] = $flags !== null && (bool)($flags & 0x8);
+    $throttling['source'] = $source;
     $throttling['low_voltage'] = $flags !== null && (bool)($flags & 0x1);
     $throttling['freq_capped'] = $flags !== null && (bool)($flags & 0x2);
     $throttling['soft_temp_limit'] = $flags !== null && (bool)($flags & 0x8);