Revert "fix shell guard url path detection"

This reverts commit 65cecc01fb.

tests/tools/test_tool_validation.py

@@ -3,8 +3,6 @@ import subprocess
 import sys
 from typing import Any
 
-import pytest
-
 from nanobot.agent.tools import (
     ArraySchema,
     IntegerSchema,
@@ -17,7 +15,6 @@ from nanobot.agent.tools import (
 from nanobot.agent.tools.base import Tool
 from nanobot.agent.tools.registry import ToolRegistry
 from nanobot.agent.tools.shell import ExecTool
-from nanobot.security.network import configure_ssrf_whitelist
 
 
 class SampleTool(Tool):
@@ -221,39 +218,6 @@ def test_exec_extract_absolute_paths_ignores_relative_posix_segments() -> None:
     assert "/bin/python" not in paths
 
 
-def test_exec_extract_absolute_paths_ignores_urls() -> None:
-    cmd = 'curl -s -o /dev/null -w "%{http_code}" https://www.google.com'
-    paths = ExecTool._extract_absolute_paths(cmd)
-    assert paths == ["/dev/null"]
-
-
-@pytest.mark.parametrize(
-    "command",
-    [
-        'curl -s -o /dev/null -w "%{http_code}" https://www.google.com',
-        'wget -q -O - http://example.com 2>&1 | head -c 100',
-        'python3 -c "import urllib.request; print(urllib.request.urlopen(\'http://example.com\').read()[:100])"',
-    ],
-)
-def test_exec_guard_allows_public_urls(tmp_path, command: str) -> None:
-    tool = ExecTool(restrict_to_workspace=True)
-    error = tool._guard_command(command, str(tmp_path))
-    assert error is None
-
-
-def test_exec_guard_allows_whitelisted_internal_urls(tmp_path) -> None:
-    configure_ssrf_whitelist(["10.10.10.0/24"])
-    try:
-        tool = ExecTool(restrict_to_workspace=True)
-        error = tool._guard_command(
-            'curl -s -H "Authorization: Bearer ..." http://10.10.10.3:8123/api/',
-            str(tmp_path),
-        )
-        assert error is None
-    finally:
-        configure_ssrf_whitelist([])
-
-
 def test_exec_extract_absolute_paths_captures_posix_absolute_paths() -> None:
     cmd = "cat /tmp/data.txt > /tmp/out.txt"
     paths = ExecTool._extract_absolute_paths(cmd)