added new mcp upload tool

app.py

@@ -41,13 +41,22 @@ def upload_docs_tool(files, docs_path="data/docs"):
     try:
         for f in files:
             if isinstance(f, str) and f.startswith(("http://", "https://")):
-                # Download URL to a temp file
-                fname = os.path.basename(f)
-                tmp = tempfile.NamedTemporaryFile(delete=False)
-                r = requests.get(f, stream=True)
-                shutil.copyfileobj(r.raw, tmp)
+                # Download URL to a temp file (txt aware)
+                resp = requests.get(f, timeout=60)
+                resp.raise_for_status()
+
+                # create temp file with proper extension
+                ext = os.path.splitext(f)[1] or ".txt"
+                tmp = tempfile.NamedTemporaryFile(delete=False, suffix=ext)
+
+                if "text" in resp.headers.get("Content-Type", "").lower():
+                    tmp.write(resp.text.encode("utf-8"))
+                else:
+                    tmp.write(resp.content)
+
                 tmp.close()
                 temp_files.append(tmp.name)
+
                 files_payload.append(("files", open(tmp.name, "rb")))
 
             elif isinstance(f, str):
@@ -139,13 +148,11 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
         upload_mcp_btn = gr.Button("Upload via MCP", variant="primary")
 
         # MCP callable function
-        def mcp_upload_wrapper(files_json, docs_path):
+        def upload_urls_tool(files_json, docs_path):
             """
                 Upload documents to the server's docs folder via MCP.
                 Accepts:
-                - local file paths (str)
                 - URLs (str)
-                - file-like objects
                 """
             import ast
             try:
@@ -155,7 +162,7 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
             return upload_docs_tool(files, docs_path)
 
         upload_mcp_btn.click(
-            mcp_upload_wrapper,
+            upload_urls_tool,
             inputs=[upload_mcp_input, upload_mcp_path],
             outputs=upload_mcp_out
         )