Michael Schiemer
95147ff23e
Remove WireGuard integration from production deployment to simplify infrastructure: - Remove docker-compose-direct-access.yml (VPN-bound services) - Remove VPN-only middlewares from Grafana, Prometheus, Portainer - Remove WireGuard middleware definitions from Traefik - Remove WireGuard IPs (10.8.0.0/24) from Traefik forwarded headers All monitoring services now publicly accessible via subdomains: - grafana.michaelschiemer.de (with Grafana native auth) - prometheus.michaelschiemer.de (with Basic Auth) - portainer.michaelschiemer.de (with Portainer native auth) All services use Let's Encrypt SSL certificates via Traefik.
126 lines
3.7 KiB
PHP
126 lines
3.7 KiB
PHP
<?php
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declare(strict_types=1);
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require_once __DIR__ . '/../../vendor/autoload.php';
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use App\Framework\QrCode\ErrorCorrection\ReedSolomonEncoder;
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use App\Framework\QrCode\ValueObjects\EncodingMode;
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use App\Framework\QrCode\ValueObjects\QrCodeVersion;
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echo "=== Encoding Issue Analysis ===\n\n";
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$testData = 'HELLO WORLD';
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echo "Test data: '{$testData}'\n";
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echo "Length: " . strlen($testData) . " bytes\n\n";
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// Expected codewords from QR code specification
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$expectedCodewords = [64, 180, 132, 84, 196, 196, 242, 5, 116, 245, 174, 59, 64, 109, 236, 233];
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echo "Expected codewords (16):\n";
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echo implode(', ', $expectedCodewords) . "\n\n";
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// Step-by-step encoding
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$version = QrCodeVersion::fromNumber(1);
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$encodingMode = EncodingMode::BYTE;
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// 1. Mode indicator
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$modeBits = $encodingMode->getModeBits();
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echo "1. Mode indicator: {$modeBits} (4 bits)\n";
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// 2. Character count
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$charCountBits = $encodingMode->getCharacterCountBits($version);
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$countBits = str_pad(decbin(strlen($testData)), $charCountBits, '0', STR_PAD_LEFT);
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echo "2. Character count: {$countBits} (8 bits) = " . strlen($testData) . "\n";
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// 3. Data bytes
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$dataBits = '';
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for ($i = 0; $i < strlen($testData); $i++) {
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$byte = ord($testData[$i]);
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$byteBits = str_pad(decbin($byte), 8, '0', STR_PAD_LEFT);
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$dataBits .= $byteBits;
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echo "3.{$i} Data byte '{$testData[$i]}': {$byteBits} = {$byte}\n";
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}
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// 4. Build bit string
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$bits = $modeBits . $countBits . $dataBits;
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echo "\nTotal bits: " . strlen($bits) . "\n";
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// 5. Get EC info
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$ecInfo = ReedSolomonEncoder::getECInfo(1, 'M');
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$requiredBits = $ecInfo['dataCodewords'] * 8;
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echo "Required bits: {$requiredBits}\n";
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echo "Bits needed: " . ($requiredBits - strlen($bits)) . "\n\n";
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// 6. Terminator (up to 4 bits)
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$terminatorLength = min(4, max(0, $requiredBits - strlen($bits)));
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$bits .= str_repeat('0', $terminatorLength);
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echo "After terminator ({$terminatorLength} bits): " . strlen($bits) . " bits\n";
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// 7. Pad to multiple of 8
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$remainder = strlen($bits) % 8;
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if ($remainder !== 0) {
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$bits .= str_repeat('0', 8 - $remainder);
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}
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echo "After padding to 8: " . strlen($bits) . " bits\n";
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// 8. Add pad codewords
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$padBytes = ['11101100', '00010001'];
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$padIndex = 0;
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while (strlen($bits) < $requiredBits) {
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$bits .= $padBytes[$padIndex % 2];
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$padIndex++;
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}
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echo "After pad codewords ({$padIndex} added): " . strlen($bits) . " bits\n\n";
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// 9. Convert to codewords
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$codewords = [];
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for ($i = 0; $i < strlen($bits); $i += 8) {
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$byte = substr($bits, $i, 8);
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$codewords[] = bindec($byte);
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}
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echo "Generated codewords (16):\n";
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echo implode(', ', $codewords) . "\n\n";
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// Compare bit by bit
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echo "=== Bit-by-Bit Comparison ===\n";
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$expectedBits = '';
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foreach ($expectedCodewords as $cw) {
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$expectedBits .= str_pad(decbin($cw), 8, '0', STR_PAD_LEFT);
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}
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echo "Our bits (128):\n";
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echo $bits . "\n\n";
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echo "Expected bits (128):\n";
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echo $expectedBits . "\n\n";
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// Find differences
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$differences = [];
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for ($i = 0; $i < 128; $i++) {
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if ($bits[$i] !== $expectedBits[$i]) {
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$differences[] = $i;
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}
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}
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if (empty($differences)) {
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echo "✅ All bits match!\n";
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} else {
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echo "❌ " . count($differences) . " bits differ at positions: ";
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echo implode(', ', array_slice($differences, 0, 20));
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if (count($differences) > 20) {
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echo " ...";
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}
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echo "\n\n";
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// Show first 10 differences in detail
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echo "First differences:\n";
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for ($i = 0; $i < min(10, count($differences)); $i++) {
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$pos = $differences[$i];
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$codeword = (int)($pos / 8);
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$bitInCodeword = $pos % 8;
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echo " Bit {$pos} (Codeword {$codeword}, bit {$bitInCodeword}): got '{$bits[$pos]}', expected '{$expectedBits[$pos]}'\n";
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}
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}
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