96 lines
2 KiB
PHP
96 lines
2 KiB
PHP
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<?php
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header("Content-Type: text/plain");
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if (!isset($_GET['data'])) {
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echo "ERR: Data query param is required";
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http_response_code(400);
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exit();
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}
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$from = $_GET['from'] ?? 'string';
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$to = $_GET['to'] ?? 'string';
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$input = $_GET['data'];
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$inter = $input;
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if ($from === 'string' && $to === 'string') {
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$to = 'base64';
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}
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switch ($from) {
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case 'base64':
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$inter = base64_decode($input);
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break;
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case 'hex':
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$inter = hexdec($input);
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break;
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case 'hex_str':
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$inter = pack('H*', $input);
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break;
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case 'bin':
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$inter = bindec($input);
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break;
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case 'bin_str':
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$inter = pack('H*', base_convert($input, 2, 16));
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break;
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case 'octal':
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$inter = octdec($input);
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break;
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}
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if (preg_match('/^base[0-9]+$/m', $from) && $inter === $input) {
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$fromBase = (int) str_replace('base', '', $from);
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if ($toBase > 36) {
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echo "ERR: Can't convert from base strictly superior to 36";
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http_response_code(400);
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exit();
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}
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$inter = base_convert($input, $fromBase, 10);
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}
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$output = $inter;
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switch ($to) {
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case 'base64':
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$output = base64_encode($inter);
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break;
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case 'dec':
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$value = unpack('H*', $inter);
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$output = base_convert($value[1], 16, 10);
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break;
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case 'bin':
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if (is_numeric($inter)) {
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$output = decbin($inter);
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} else {
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$value = unpack('H*', $inter);
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$output = base_convert($value[1], 16, 2);
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}
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break;
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case 'hex':
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if (is_numeric($inter)) {
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$output = dechex($inter);
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} else {
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$output = unpack('H*', $inter)[1];
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}
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break;
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case 'octal':
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if (is_numeric($inter)) {
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$output = decoct($inter);
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} else {
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$value = unpack('H*', $inter);
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$output = base_convert($value[1], 16, 8);
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}
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break;
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}
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if (preg_match('/^base[0-9]+$/m', $to) && $output === $inter) {
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$toBase = (int) str_replace('base', '', $to);
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if ($toBase > 36) {
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echo "ERR: Can't convert to base strictly superior to 36";
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http_response_code(400);
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exit();
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}
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$output = base_convert($input, 10, $toBase);
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}
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echo $output;
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