filters.py 文件源码

def gravatar(value,arg):
    default = "http://v2ex.appspot.com/static/img/avatar_" + str(arg) + ".png"
    if type(value).__name__ != 'Member':
        return '<img src="' + default + '" border="0" align="absmiddle" />'
    if arg == 'large':
        number_size = 73
        member_avatar_url = value.avatar_large_url
    elif arg == 'normal':
        number_size = 48
        member_avatar_url = value.avatar_normal_url
    elif arg == 'mini':
        number_size = 24
        member_avatar_url = value.avatar_mini_url

    if member_avatar_url:
        return '<img src="'+ member_avatar_url +'" border="0" alt="' + value.username + '" />'
    else:
        gravatar_url = "http://www.gravatar.com/avatar/" + hashlib.md5(value.email.lower()).hexdigest() + "?"
        gravatar_url += urllib.urlencode({'s' : str(number_size), 'd' : default})
        return '<img src="' + gravatar_url + '" border="0" alt="' + value.username + '" align="absmiddle" />'


# avatar filter