fix a bug where computers would fail SSL certification when running download_tool.py

tools/download_tool.py

@@ -91,20 +91,7 @@ TOOLS: Dict[str, Callable[[str], str]] = {
     "wibo": wibo_url,
 }
 
-
-def main() -> None:
-    parser = argparse.ArgumentParser()
-    parser.add_argument("tool", help="Tool name")
-    parser.add_argument("output", type=Path, help="output file path")
-    parser.add_argument("--tag", help="GitHub tag", required=True)
-    args = parser.parse_args()
-
-    url = TOOLS[args.tool](args.tag)
-    output = Path(args.output)
-
-    print(f"Downloading {url} to {output}")
-    req = urllib.request.Request(url, headers={"User-Agent": "Mozilla/5.0"})
-    with urllib.request.urlopen(req) as response:
+def download(url, response, output) -> None:
     if url.endswith(".zip"):
         data = io.BytesIO(response.read())
         with zipfile.ZipFile(data) as f:
@@ -120,6 +107,35 @@ def main() -> None:
         st = os.stat(output)
         os.chmod(output, st.st_mode | stat.S_IEXEC)
 
+def main() -> None:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("tool", help="Tool name")
+    parser.add_argument("output", type=Path, help="output file path")
+    parser.add_argument("--tag", help="GitHub tag", required=True)
+    args = parser.parse_args()
+
+    url = TOOLS[args.tool](args.tag)
+    output = Path(args.output)
+
+    print(f"Downloading {url} to {output}")
+    req = urllib.request.Request(url, headers={"User-Agent": "Mozilla/5.0"})
+    try:
+        with urllib.request.urlopen(req) as response:
+            download(url, response, output)
+    except urllib.error.URLError:
+        try:
+            import certifi
+            import ssl
+        except:
+            import sys
+            import subprocess
+            
+            curr_py = sys.executable
+            subprocess.check_call([curr_py, '-m', 'pip', 'install', 'certifi', 'ssl'], stdout=subprocess.DEVNULL)
+            
+        with urllib.request.urlopen(req, context=ssl.create_default_context(cafile=certifi.where())) as response:
+            download(url, response, output)
+
 
 if __name__ == "__main__":
     main()