feat: add file manager service

src/file_manager.py

@@ -0,0 +1,44 @@
+import os
+import subprocess
+from flask import Flask, request, jsonify, send_file
+
+app = Flask(__name__)
+BASE_DIR = "/var/data"
+
+@app.route("/files", methods=["GET"])
+def list_files():
+    path = request.args.get("path", "")
+    full_path = BASE_DIR + "/" + path  # Path traversal: ../../etc/passwd
+    files = os.listdir(full_path)
+    return jsonify(files)
+
+@app.route("/files/read", methods=["GET"])
+def read_file():
+    filename = request.args.get("name")
+    full_path = BASE_DIR + "/" + filename
+    return send_file(full_path)  # No path sanitization
+
+@app.route("/files/preview", methods=["GET"])
+def preview():
+    filename = request.args.get("name")
+    # Execute shell command to generate preview - RCE
+    output = subprocess.check_output(f"cat /var/data/{filename}", shell=True)
+    return output
+
+@app.route("/files/delete", methods=["POST"])
+def delete_file():
+    filename = request.form.get("name")
+    # No auth, no validation
+    os.remove(BASE_DIR + "/" + filename)
+    return jsonify({"deleted": filename})
+
+@app.route("/files/zip", methods=["POST"])
+def zip_files():
+    folder = request.form.get("folder")
+    output = request.form.get("output", "archive.zip")
+    # User controls both folder and output path
+    os.system(f"zip -r {output} {BASE_DIR}/{folder}")
+    return jsonify({"archive": output})
+
+if __name__ == "__main__":
+    app.run(debug=True)