file explorer, execution engine und editor

.streamlit/config.toml

@@ -0,0 +1,6 @@
+[theme]
+base = "light"
+primaryColor = "#4A90D9"
+backgroundColor = "#ffffff"
+secondaryBackgroundColor = "#f5f5f5"
+textColor = "#1a1a1a"

src/backend/execution_engine.py

@@ -5,18 +5,102 @@ from pathlib import Path
 
 from backend.debug_logger import DebugLogger
 
+# ---------------- BLOCKED PATTERNS ----------------
+# These AST node patterns are refused before execution
+BLOCKED_IMPORTS = {
+    "winreg", "ctypes", "msvcrt",          # Windows internals
+}
+
+BLOCKED_CALLS = {
+    ("os", "system"), ("os", "popen"),
+    ("os", "remove"), ("os", "unlink"),
+    ("os", "rmdir"), ("os", "removedirs"),
+    ("shutil", "rmtree"), ("shutil", "move"),
+    ("subprocess", "call"), ("subprocess", "Popen"),
+    ("subprocess", "run"),
+}
+
+BLOCKED_BUILTINS = {"__import__", "eval", "exec", "compile"}
+
+# Paths that are never allowed as cwd or in file arguments
+BLOCKED_PATH_PREFIXES = [
+    "C:\\Windows",
+    "C:\\System32",
+    "/etc",
+    "/bin",
+    "/sbin",
+    "/usr/bin",
+    "/usr/sbin",
+    "/boot",
+    "/sys",
+    "/proc",
+]
+
+
+class SafetyError(Exception):
+    pass
+
 
 class ExecutionEngine:
     def __init__(self):
         self.logger = DebugLogger()
 
+    # ---------------- SAFETY CHECK ----------------
+    def _check_safe(self, filepath: str) -> None:
+        """
+        Raises SafetyError if the file contains dangerous patterns.
+        Only runs on .py files (other types are blocked outright).
+        """
+        path = Path(filepath)
+        source = path.read_text(encoding="utf-8")
+        try:
+            tree = ast.parse(source, filename=str(path))
+        except SyntaxError:
+            return  # syntax errors handled separately
+
+        for node in ast.walk(tree):
+
+            # Block dangerous imports
+            if isinstance(node, (ast.Import, ast.ImportFrom)):
+                names = (
+                    [a.name for a in node.names]
+                    if isinstance(node, ast.Import)
+                    else [node.module or ""]
+                )
+                for name in names:
+                    root = name.split(".")[0]
+                    if root in BLOCKED_IMPORTS:
+                        raise SafetyError(f"Blocked import: '{name}'")
+
+            # Block dangerous attribute calls like os.remove(...)
+            if isinstance(node, ast.Call):
+                func = node.func
+                if isinstance(func, ast.Attribute):
+                    if isinstance(func.value, ast.Name):
+                        pair = (func.value.id, func.attr)
+                        if pair in BLOCKED_CALLS:
+                            raise SafetyError(
+                                f"Blocked call: '{func.value.id}.{func.attr}()'"
+                            )
+
+                # Block dangerous builtins: eval(), exec(), __import__()
+                if isinstance(func, ast.Name) and func.id in BLOCKED_BUILTINS:
+                    raise SafetyError(f"Blocked builtin: '{func.id}()'")
+
+        # Block absolute paths pointing at system directories in string literals
+        for node in ast.walk(tree):
+            if isinstance(node, ast.Constant) and isinstance(node.value, str):
+                for prefix in BLOCKED_PATH_PREFIXES:
+                    if node.value.lower().startswith(prefix.lower()):
+                        raise SafetyError(
+                            f"Blocked system path in code: '{node.value}'"
+                        )
+
     # ---------------- SYNTAX CHECK ----------------
     def check_syntax(self, filepath: str) -> bool:
-        """Parse the file with ast. Returns True if valid, False if not."""
         path = Path(filepath)
         if path.suffix.lower() != ".py":
-            return True  # skip non-Python files
-
+            return True
         try:
             source = path.read_text(encoding="utf-8")
             ast.parse(source, filename=str(path))
@@ -34,27 +118,43 @@ class ExecutionEngine:
         self.logger.clear()
         path = Path(filepath)
 
-        # --- guards ---
+        # --- file exists ---
         if not path.exists():
             self.logger.log_stderr(f"File not found: {filepath}")
             return self._result("", f"File not found: {filepath}", -1)
 
         ext = path.suffix.lower()
-        if ext == ".py":
-            # syntax check before running
-            if not self.check_syntax(filepath):
-                err = self.logger.format()
-                return self._result("", err, -1)
-            cmd = [sys.executable, str(path)]
-        elif ext == ".js":
-            cmd = ["node", str(path)]
-        elif ext == ".sh":
-            cmd = ["bash", str(path)]
-        else:
+
+        # --- only allow known safe types ---
+        if ext not in (".py", ".js", ".sh"):
             msg = f"Unsupported file type: {ext}"
             self.logger.log_stderr(msg)
             return self._result("", msg, -1)
 
+        # --- block shell scripts on Windows (too risky) ---
+        if ext == ".sh" and sys.platform == "win32":
+            msg = "Shell scripts are not supported on Windows."
+            self.logger.log_stderr(msg)
+            return self._result("", msg, -1)
+
+        # --- Python: syntax + safety check ---
+        if ext == ".py":
+            if not self.check_syntax(filepath):
+                return self._result("", self.logger.format(), -1)
+            try:
+                self._check_safe(filepath)
+            except SafetyError as e:
+                msg = f"Safety check failed: {e}"
+                self.logger.log_stderr(msg)
+                return self._result("", msg, -1)
+            cmd = [sys.executable, str(path)]
+
+        elif ext == ".js":
+            cmd = ["node", str(path)]
+
+        elif ext == ".sh":
+            cmd = ["bash", str(path)]
+
         # --- execute ---
         self.logger.log(f"Running: {path.name}")
         try:
@@ -68,7 +168,6 @@ class ExecutionEngine:
             self.logger.log_stdout(result.stdout)
             self.logger.log_stderr(result.stderr)
             self.logger.log_result(result.returncode)
-
             return self._result(result.stdout, result.stderr, result.returncode)
 
         except subprocess.TimeoutExpired:

src/backend/file_manager.py

@@ -3,23 +3,70 @@ from pathlib import Path
 
 class FileManager:
     """
-    Handles file reading and writing
+    Handles all filesystem operations: read, write, create, delete, and change detection.
     """
 
     def __init__(self, root_path="."):
         self.root_path = Path(root_path).resolve()
 
-    def read_file(self, file_path):
+    SUPPORTED_EXTENSIONS = {'.py', '.js', '.html', '.css', '.json', '.md'}
+
+    # ---------------- READ / WRITE ----------------
+    def read_file(self, file_path: str) -> str:
         try:
             with open(file_path, "r", encoding="utf-8") as f:
                 return f.read()
         except Exception:
             return ""
 
-    def save_file(self, file_path, content):
+    def save_file(self, file_path: str, content: str) -> bool:
         try:
             with open(file_path, "w", encoding="utf-8") as f:
                 f.write(content)
             return True
         except Exception:
-            return False
+            return False
+
+    # ---------------- CREATE ----------------
+    def create_file(self, target_dir: str, name: str) -> tuple:
+        try:
+            path = Path(target_dir) / name.strip()
+            if path.exists():
+                return False, f"'{name}' already exists."
+            if path.suffix.lower() not in self.SUPPORTED_EXTENSIONS:
+                return False, f"Unsupported extension. Use: {', '.join(sorted(self.SUPPORTED_EXTENSIONS))}"
+            path.touch()
+            return True, f"Created '{name}'."
+        except Exception as e:
+            return False, str(e)
+
+    def create_folder(self, target_dir: str, name: str) -> tuple:
+        try:
+            path = Path(target_dir) / name.strip()
+            if path.exists():
+                return False, f"'{name}' already exists."
+            path.mkdir(parents=False)
+            return True, f"Created folder '{name}'."
+        except Exception as e:
+            return False, str(e)
+
+    # ---------------- LISTING ----------------
+    def list_all_dirs(self, root_folder: str) -> list:
+        """Return all directories (root first, then subdirs sorted)."""
+        root = Path(root_folder)
+        dirs = [root]
+        for p in sorted(root.rglob("*")):
+            if p.is_dir():
+                dirs.append(p)
+        return dirs
+
+    # ---------------- CHANGE DETECTION ----------------
+    def snapshot(self, root_folder: str) -> frozenset:
+        """Snapshot of all paths for change detection."""
+        try:
+            return frozenset(
+                (str(p), p.is_dir())
+                for p in Path(root_folder).rglob("*")
+            )
+        except Exception:
+            return frozenset()

src/ui/editor.py

@@ -32,7 +32,7 @@ class CodeEditor:
             st.caption(f"  {filename.split('/')[-1] or filename}" if filename else "")
         with run_col:
             run_clicked = st.button(
-                "▶ Run",
+                "▶ RUN CODE",
                 key=f"run_{filename}",
                 type="primary",
                 use_container_width=True

src/ui/navigation.py

@@ -2,21 +2,23 @@ import tkinter as tk
 from tkinter import filedialog
 from pathlib import Path
 import streamlit as st
-from streamlit_tree_select import tree_select
+import streamlit_antd_components as sac
+
+from backend.file_manager import FileManager
 
 
 class FileNavigation:
     """
-    Builds a VS Code-like file tree for streamlit_tree_select
-    and handles folder picking.
+    Builds a VS Code-like file tree using streamlit-antd-components.
+    All filesystem ops delegated to FileManager.
     """
 
     def __init__(self):
-        self.supported_extensions = {'.py', '.js', '.html', '.css', '.json', '.md'}
+        self.file_manager = FileManager()
+        self.supported_extensions = FileManager.SUPPORTED_EXTENSIONS
 
     # ---------------- FOLDER PICKER ----------------
     def pick_folder(self) -> str | None:
-        """Open a native OS folder picker and return the selected path."""
         root = tk.Tk()
         root.withdraw()
         root.wm_attributes("-topmost", 1)
@@ -26,18 +28,12 @@ class FileNavigation:
 
     # ---------------- TREE BUILDER ----------------
     def build_tree(self, path=None) -> list:
-        """Build a VS Code-style tree structure for streamlit_tree_select."""
         if path is None:
             path = Path.cwd()
-
         path = Path(path)
 
-        def build_node(current_path: Path) -> dict:
+        def build_node(current_path: Path) -> sac.TreeItem:
             is_dir = current_path.is_dir()
-            node = {
-                "label": ("📁 " if is_dir else "📄 ") + current_path.name,
-                "value": str(current_path),
-            }
             if is_dir:
                 children = []
                 try:
@@ -49,20 +45,92 @@ class FileNavigation:
                             children.append(build_node(item))
                 except PermissionError:
                     pass
-                node["children"] = children
-            return node
+                return sac.TreeItem(
+                    label=current_path.name,
+                    icon="folder",
+                    children=children if children else None,
+                )
+            else:
+                return sac.TreeItem(
+                    label=current_path.name,
+                    icon="file-earmark-code",
+                )
 
         return [build_node(path)]
 
+    # ---------------- DIALOG ----------------
+    @st.dialog("New file or folder")
+    def _new_item_dialog(self, root_folder: str):
+        root = Path(root_folder)
+        all_dirs = self.file_manager.list_all_dirs(root_folder)
+
+        def dir_label(p: Path) -> str:
+            rel = p.relative_to(root)
+            return "/ (root)" if str(rel) == "." else str(rel)
+
+        dir_labels = [dir_label(d) for d in all_dirs]
+        dir_paths  = [str(d) for d in all_dirs]
+
+        mode = st.segmented_control(
+            "Type",
+            options=["📄 File", "📁 Folder"],
+            default="📄 File",
+            label_visibility="collapsed"
+        )
+        is_file = mode == "📄 File"
+
+        st.markdown("---")
+
+        selected_label = st.selectbox("Location", options=dir_labels, index=0)
+        target_dir = dir_paths[dir_labels.index(selected_label)]
+
+        name = st.text_input(
+            "File name" if is_file else "Folder name",
+            placeholder="e.g. main.py" if is_file else "e.g. utils",
+        )
+
+        if name and name.strip():
+            sep = "" if target_dir.endswith("/") else "/"
+            st.caption(f"`{target_dir}{sep}{name.strip()}`")
+
+        st.markdown("---")
+
+        col_cancel, col_create = st.columns(2)
+        with col_cancel:
+            if st.button("Cancel", use_container_width=True):
+                st.rerun()
+        with col_create:
+            if st.button(
+                "Create file" if is_file else "Create folder",
+                type="primary",
+                use_container_width=True,
+                disabled=not (name and name.strip())
+            ):
+                if is_file:
+                    ok, msg = self.file_manager.create_file(target_dir, name)
+                else:
+                    ok, msg = self.file_manager.create_folder(target_dir, name)
+                if ok:
+                    st.success(msg)
+                    st.rerun()
+                else:
+                    st.error(msg)
+
     # ---------------- SIDEBAR RENDERER ----------------
     def render_sidebar(self) -> str | None:
-        """
-        Renders the full sidebar: folder button, caption, divider, and tree.
-        Returns the selected file path or None.
-        """
         st.sidebar.title("File Explorer")
         root_folder = st.session_state.get("root_folder")
 
+        # --- Auto-refresh: detect external filesystem changes ---
+        if root_folder:
+            current_snapshot = self.file_manager.snapshot(root_folder)
+            last_snapshot = st.session_state.get("_folder_snapshot")
+            if last_snapshot is None:
+                st.session_state._folder_snapshot = current_snapshot
+            elif current_snapshot != last_snapshot:
+                st.session_state._folder_snapshot = current_snapshot
+                st.rerun()
+
         with st.sidebar:
             btn_left, btn_right = st.columns(2)
             with btn_left:
@@ -70,6 +138,7 @@ class FileNavigation:
                     picked = self.pick_folder()
                     if picked:
                         st.session_state.root_folder = picked
+                        st.session_state._folder_snapshot = None
                         st.rerun()
             with btn_right:
                 if st.button("💬 Ask AI", key="toggle_chat", use_container_width=True):
@@ -79,22 +148,41 @@ class FileNavigation:
             st.markdown("---")
 
             if root_folder:
+                if st.button("Add new File/Folder", key="new_item_btn", use_container_width=True):
+                    self._new_item_dialog(root_folder)
+
                 try:
                     root_path = Path(root_folder)
                     if root_path.exists() and root_path.is_dir():
                         tree_data = self.build_tree(root_path)
-                        selection = tree_select(
-                            tree_data,
-                            check_model="leaf",
-                            only_leaf_checkboxes=True
+
+                        selected = sac.tree(
+                            items=tree_data,
+                            label=" ",
+                            index=None,
+                            align="left",
+                            size="sm",
+                            icon="folder2",
+                            open_all=False,
+                            checkbox=False,
+                            show_line=False,
+                            key=f"tree_{root_folder}",
                         )
-                        if selection and selection.get("checked"):
-                            return selection["checked"][0]
+
+                        if selected:
+                            return self._resolve_path(root_path, selected)
                     else:
                         st.warning("Folder not found.")
-                except Exception:
-                    st.error("Could not load folder.")
+                except Exception as e:
+                    st.error(f"Could not load folder: {e}")
             else:
                 st.text("No folder selected yet.")
 
+        return None
+
+    # ---------------- PATH RESOLVER ----------------
+    def _resolve_path(self, root_path: Path, selected_label: str) -> str | None:
+        for p in root_path.rglob("*"):
+            if p.name == selected_label and p.suffix in self.supported_extensions:
+                return str(p)
         return None