workspace— step2

app/utils/app_utils.py

@@ -1,8 +0,0 @@
-
-def is_valid_str(s):
-    """判断字符串是否有效，即非空且非空格。"""
-    return isinstance(s, str) and len(s.strip()) > 0
-
-def is_empty_str(s):
-    """判断字符串是否为空，即空或仅包含空格。"""
-    return isinstance(s, str) and len(s.strip()) == 0

app/utils/http_utils.py

@@ -1,38 +0,0 @@
-import json
-import time
-import hmac
-import secrets
-import hashlib
-from typing import Dict, Any
-
-def generate_signed_headers(app_id: str, app_secret: str, data: Dict[str, Any], method: str = "POST") -> Dict[str, str]:
-    timestamp = str(int(time.time() * 1000))
-    nonce = secrets.token_hex(16)
-    
-    payload_str = json.dumps(data, ensure_ascii=False)
-    payload_bytes = payload_str.encode("utf-8")
-    actual_body_hash = hashlib.sha256(payload_bytes).hexdigest()
-
-    string_to_sign = "\n".join([
-        method.upper(),
-        app_id,
-        timestamp,
-        nonce,
-        actual_body_hash
-    ])
-
-    signature = hmac.new(
-        app_secret.encode("utf-8"),
-        string_to_sign.encode("utf-8"),
-        hashlib.sha256
-    ).hexdigest()
-
-    headers = {
-        "X-Ca-Appid": app_id,
-        "X-Ca-Timestamp": timestamp,
-        "X-Ca-Nonce": nonce,
-        "X-Ca-Signature": signature,
-        "Content-Type": "application/json; charset=utf-8"
-    }
-    
-    return headers