fix ci

.travis.yml

@@ -5,6 +5,7 @@ services:
 before_install:
     - sudo mkdir -p /data/log
     - pip install requests
+    - echo "token" > token.txt
 script:
     - docker pull qduoj/judge_server
     - cp docker-compose.example.yml docker-compose.yml

server/utils.py

@@ -60,7 +60,7 @@ def server_info():
 def get_token():
     try:
         with open(TOKEN_FILE_PATH, "r") as f:
-            return f.read()
+            return f.read().strip()
     except IOError:
         raise JudgeClientError("token.txt not found")
 

token.example.txt

@@ -0,0 +1 @@
+PLEASE_USE_YOUR_OWN_TOKEN