通過查詢在龍捲風

回到整數名單上有這些變量：通過查詢在龍捲風

PERM_READ = 0x01 
PERM_WRITE = 0x02 
PERM_CMDS = 0x04

和功能檢查權限的網絡或傳感器。決定用戶權限的函數。

這是函數：

def check_network_access(self, network, access=None, raise_err=True): 
    if access is None: 
     access = PERM_READ 
    else: 
     assert(access > 0) 
     assert(access <= (PERM_READ + PERM_WRITE + PERM_CMDS)) 
    usr = self.get_current_user() 
    usr_id = usr['id'] 
    # Does the network exist? 
    net = self.get_network(network) 
    if not net: 
     raise tornado.web.HTTPError(404, "not found") 

    self.lock_tables('read', ['nets_permissions']) 
    perms = self.db.get("SELECT * FROM nets_permissions WHERE network_id=%s AND \ 
         user_id=%s", network, usr_id) 
    self.unlock_tables() 
    if (not perms) or ((perms['perm'] & access) != access): 
     if (raise_err): 
      raise tornado.web.HTTPError(403, "access forbidden %s %s", perms['perm'], access) 
     else: 
      return False 
    return True

現在比如我有一個錯誤，當我調用一個頁面，這個處理程序：

class NetworkStatusHandler(BaseHandler): 
# Requires authentication 
@tornado.web.authenticated 
def get(self, nid): 

    # Retrieve the current user 
    usr = self.get_current_user() 
    usr_id = usr['id'] 

    perm = self.db.query("SELECT n.perm FROM nets_permissions as n \ 
          WHERE n.network_id=%s AND n.user_id=%s", nid, int(usr_id)) 

    # Check whether the user has access to the network 
    perms = self.check_network_access(nid, perm) 
    net = self.get_network(nid) 
    # Render the networks page 
    self.render("networkstatus.html", net=net)

我的錯誤是：

File "./wsn.py", line 264, in check_network_access 
raise tornado.web.HTTPError(403, "access forbidden %s %s", perms['perm'], access) 
HTTPError: HTTP 403: Forbidden (access forbidden 4 1)

我認爲這是一個問題，在通過可滲透的perm /訪問函數...我如何通過這個變量爲了做到這一點是一個整數，而不是一個列表？

謝謝你的幫助！

來源

2012-09-12 sharkbait

你爲什麼想？已經檢查了你傳遞給'check_network_access'的東西嗎？ –

我不知道如何在旋風中看到變量。我不知道我該如何做調試！請幫助我 – sharkbait

只需使用打印語句。 –

這是正確的方式：

class NetworkStatusHandler(BaseHandler): 
# Requires authentication 
@tornado.web.authenticated 
def get(self, nid): 

    # Retrieve the current user 
    usr = self.get_current_user() 
    usr_id = usr['id'] 

    self.lock_tables("read", ['nets_permissions as n']) 
    perm = self.db.get("SELECT n.perm FROM nets_permissions as n \ 
          WHERE n.network_id=%s AND n.user_id=%s", nid, int(usr_id)) 
    self.unlock_tables() 

    # Check whether the user has access to the network 
    perms = self.check_network_access(nid, perm['perm']) 
    net = self.get_network(nid) 
    # Render the networks page 
    self.render("networkstatus.html", net=net)

與self.db.get和燙髮[ '燙髮']。謝謝！！！！

來源

2012-09-12 16:03:33 sharkbait

通過查詢在龍捲風

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