Initial YakPanel commit

YakPanel-server/backend/app/api/logs.py

@@ -0,0 +1,80 @@
+"""YakPanel - Logs viewer API"""
+import os
+from fastapi import APIRouter, Depends, HTTPException, Query
+
+from app.core.config import get_runtime_config
+from app.core.utils import read_file
+from app.api.auth import get_current_user
+from app.models.user import User
+
+router = APIRouter(prefix="/logs", tags=["logs"])
+
+
+def _resolve_log_path(path: str) -> str:
+    """Resolve path within www_logs only"""
+    if ".." in path:
+        raise HTTPException(status_code=401, detail="Path traversal not allowed")
+    cfg = get_runtime_config()
+    logs_root = os.path.abspath(cfg["www_logs"])
+    path = path.strip().replace("\\", "/").lstrip("/")
+    if not path:
+        return logs_root
+    full = os.path.abspath(os.path.join(logs_root, path))
+    if not (full == logs_root or full.startswith(logs_root + os.sep)):
+        raise HTTPException(status_code=403, detail="Path not allowed")
+    return full
+
+
+@router.get("/list")
+async def logs_list(
+    path: str = "/",
+    current_user: User = Depends(get_current_user),
+):
+    """List log files and directories under www_logs"""
+    try:
+        full = _resolve_log_path(path)
+    except HTTPException:
+        raise
+    if not os.path.isdir(full):
+        raise HTTPException(status_code=400, detail="Not a directory")
+    items = []
+    for name in sorted(os.listdir(full)):
+        item_path = os.path.join(full, name)
+        try:
+            stat = os.stat(item_path)
+            items.append({
+                "name": name,
+                "is_dir": os.path.isdir(item_path),
+                "size": stat.st_size if os.path.isfile(item_path) else 0,
+            })
+        except OSError:
+            pass
+    rel = path.rstrip("/") or "/"
+    return {"path": rel, "items": items}
+
+
+@router.get("/read")
+async def logs_read(
+    path: str,
+    tail: int = Query(default=1000, ge=1, le=100000),
+    current_user: User = Depends(get_current_user),
+):
+    """Read log file content (last N lines)"""
+    try:
+        full = _resolve_log_path(path)
+    except HTTPException:
+        raise
+    if not os.path.isfile(full):
+        raise HTTPException(status_code=404, detail="Not a file")
+    content = read_file(full)
+    if content is None:
+        raise HTTPException(status_code=500, detail="Failed to read file")
+    if isinstance(content, bytes):
+        try:
+            content = content.decode("utf-8", errors="replace")
+        except Exception:
+            raise HTTPException(status_code=400, detail="Binary file")
+    lines = content.splitlines()
+    if len(lines) > tail:
+        lines = lines[-tail:]
+    return {"path": path, "content": "\n".join(lines), "total_lines": len(content.splitlines())}