Upload via GUI (258 Dateien)

2026-10-16 19:12:18 +00:00
parent 56deade877
commit 6cced3beda
50 changed files with 11148 additions and 0 deletions
@@ -0,0 +1,128 @@
+<?php
+/**
+ * Eigenständiger ZIP-Writer ohne php_zip Erweiterung.
+ * Implementiert ZIP-Format (PKZIP 2.0) direkt in PHP.
+ */
+class SimpleZip
+{
+    private string $path;
+    private        $fh;
+    private array  $entries = [];
+    private int    $offset  = 0;
+
+    public function __construct(string $path)
+    {
+        $this->path = $path;
+        $this->fh   = fopen($path, 'wb');
+        if (!$this->fh) throw new RuntimeException("Kann ZIP nicht erstellen: $path");
+    }
+
+    public function addFromString(string $localName, string $data): void
+    {
+        $this->addData($localName, $data, time());
+    }
+
+    public function addFile(string $filePath, string $localName): void
+    {
+        $data    = file_get_contents($filePath);
+        $mtime   = filemtime($filePath);
+        $this->addData($localName, $data, $mtime);
+    }
+
+    private function addData(string $localName, string $data, int $mtime): void
+    {
+        $localName  = str_replace('\\', '/', $localName);
+        $crc        = crc32($data);
+        $size       = strlen($data);
+        $compressed = gzdeflate($data, 6);
+        $compSize   = strlen($compressed);
+
+        // Lokaler Header
+        $dosTime = $this->dosTime(filemtime($filePath));
+        $nameLen = strlen($localName);
+
+        $localHeader = pack('VvvvvVVVvv',
+            0x04034b50,  // Signatur
+            20,          // Version needed
+            0,           // Flags
+            8,           // Deflate
+            $dosTime,    // Mod time
+            $crc,
+            $compSize,
+            $size,
+            $nameLen,
+            0            // Extra length
+        ) . $localName;
+
+        fwrite($this->fh, $localHeader);
+        fwrite($this->fh, $compressed);
+
+        $this->entries[] = [
+            'name'     => $localName,
+            'crc'      => $crc,
+            'size'     => $size,
+            'compSize' => $compSize,
+            'offset'   => $this->offset,
+            'dosTime'  => $dosTime,
+        ];
+
+        $this->offset += strlen($localHeader) + $compSize;
+    }
+
+    public function close(): void
+    {
+        $cdOffset = $this->offset;
+        $cdSize   = 0;
+
+        foreach ($this->entries as $e) {
+            $nameLen = strlen($e['name']);
+            $cd = pack('VvvvvVVVvvvvvVV',
+                0x02014b50,  // CD Signatur
+                20,          // Version made by
+                20,          // Version needed
+                0,           // Flags
+                8,           // Deflate
+                $e['dosTime'],
+                $e['crc'],
+                $e['compSize'],
+                $e['size'],
+                $nameLen,
+                0,           // Extra length
+                0,           // Comment length
+                0,           // Disk start
+                0,           // Internal attr
+                0,           // External attr
+                $e['offset']
+            ) . $e['name'];
+
+            fwrite($this->fh, $cd);
+            $cdSize += strlen($cd);
+        }
+
+        // End of central directory
+        $count = count($this->entries);
+        fwrite($this->fh, pack('VvvvvVVv',
+            0x06054b50,  // EOCD Signatur
+            0,           // Disk number
+            0,           // Disk with CD
+            $count,      // Entries on disk
+            $count,      // Total entries
+            $cdSize,
+            $cdOffset,
+            0            // Comment length
+        ));
+
+        fclose($this->fh);
+    }
+
+    private function dosTime(int $unixTime): int
+    {
+        $d = getdate($unixTime);
+        return (($d['year'] - 1980) << 25)
+             | ($d['mon']  << 21)
+             | ($d['mday'] << 16)
+             | ($d['hours']   << 11)
+             | ($d['minutes'] << 5)
+             | ($d['seconds'] >> 1);
+    }
+}