1 files changed, 99 insertions, 0 deletions
diff --git a/src/ZipStream.php b/src/ZipStream.php
new file mode 100644
index 0000000..b6953ef
--- /dev/null
+++ b/src/ZipStream.php
@@ -0,0 +1,99 @@
+<?php
+
+namespace Pablotron\ZipStream;
+
+final class ZipStream {
+  const VERSION = "0.2.0";
+
+  public $zip_name;
+  private $args;
+  private $entries = array();
+
+  static $DEFAULT_ARCHIVE_OPTIONS = [
+    'method'  => 'deflate'
+    'comment' => '',
+    'header'  => true,
+  ];
+
+  static $DEFAULT_FILE_OPTIONS = [
+    'comment' => '',
+  ];
+
+  public function __construct(
+    string $zip_name,
+    array $args = array()
+  ) {
+    $this->zip_name = $zip_name;
+    $this->args = array_merge(
+      self::$DEFAULT_ARCHIVE_OPTIONS,
+      $args
+    );
+  }
+
+  public function add_text(
+    string $dst_path, 
+    array $args = array()
+  ) {
+    $this->check_path($dst_path);
+    $this->entries[] = pack('VvvvvvVVVvv'
+  }
+
+  public function add_path(
+    string $dst_path,
+    string $src_path = null,
+    array $args = array()
+  )
+
+  public function add_stream(
+    string $dst_path,
+    $src_stream,
+    array $args = array()
+  )
+
+  public function finish() {
+  }
+
+  public static function send($name, array $args, function $cb) {
+    $zip = new self($name, $args);
+    $cb($zip);
+    $zip->finish();
+  }
+
+  private function check_path(string $path) {
+    # make sure path is non-null
+    if (!$path) {
+      throw new Exception("null path");
+    }
+
+    # check for empty path
+    if (!strlen($path)) {
+      throw new Exception("empty path");
+    }
+
+    # check for long path
+    if (strlen($path) > 65535) {
+      throw new Exception("path too long");
+    }
+
+    # check for leading slash
+    if (!$path[0] == '/') {
+      throw new Exception("path contains leading slash");
+    }
+
+    # check for trailing slash
+    if (preg_match('/\\$/', $path)) {
+      throw new Exception("path contains trailing slash");
+    }
+
+    # check for double slashes
+    if (preg_match('/\/\//', $path))
+      throw new Exception("path contains double slashes");
+    }
+
+    # check for double dots
+    if (preg_match('/\.\./', $path))
+      throw new Exception("relative path");
+    }
+  }
+
+};