[Misc] Normalize --host parameter to use plain hostname without scheme (#19309)

Co-authored-by: 墨楼 <huangzhilin.hzl@antgroup.com>
Co-authored-by: Liangsheng Yin <lsyincs@gmail.com>
Co-authored-by: Liangsheng Yin <hnyls2002@gmail.com>

examples/runtime/multimodal/llama3_llava_server.py

@@ -21,6 +21,8 @@ import aiohttp
 import requests
 from llava.conversation import conv_llava_llama_3
 
+from sglang.utils import normalize_base_url
+
 
 async def send_request(url, data, delay=0):
     await asyncio.sleep(delay)
@@ -31,7 +33,7 @@ async def send_request(url, data, delay=0):
 
 
 async def test_concurrent(args):
-    url = f"{args.host}:{args.port}"
+    url = normalize_base_url(args.host, args.port)
 
     prompt = "<image>\nPlease generate caption towards this image."
     conv_template = copy.deepcopy(conv_llava_llama_3)
@@ -64,7 +66,7 @@ async def test_concurrent(args):
 
 
 def test_streaming(args):
-    url = f"{args.host}:{args.port}"
+    url = normalize_base_url(args.host, args.port)
     prompt = "<image>\nPlease generate caption towards this image."
     conv_template = copy.deepcopy(conv_llava_llama_3)
     conv_template.append_message(role=conv_template.roles[0], message=prompt)
@@ -104,7 +106,7 @@ def test_streaming(args):
 
 if __name__ == "__main__":
     parser = argparse.ArgumentParser()
-    parser.add_argument("--host", type=str, default="http://127.0.0.1")
+    parser.add_argument("--host", type=str, default="127.0.0.1")
     parser.add_argument("--port", type=int, default=30000)
     args = parser.parse_args()
     asyncio.run(test_concurrent(args))