handlers.py 文件源码

def get(self, file):
        if self.isAuthenticated():
            if file.find("..") > -1:
                return
            fullPath = os.path.join(self.path, file)
            if not os.path.exists(fullPath):
                self.set_status(404)
                self.write("404 Not Found")
                return
            ext = file.split('.')[-1]
            contentType = "application/octet-stream"
            if ext == "jpg" or ext== "jpeg" or ext == "bmp":
                contentType = "image/{0}".format(ext) 
            self.logger.debug("serving file {0}".format(fullPath))
            with open(fullPath, mode='rb') as file:
                fileData = file.read()
                self.write(fileData)
                self.set_header("Content-Type", contentType)
        else:       
            self.redirect("/login?"+urllib.urlencode({"returnUrl":self.request.uri}))