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47 lines
1.1 KiB
47 lines
1.1 KiB
package mysmtp
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import "errors"
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/*
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auth login
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*/
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type loginAuth struct {
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username, password string
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host string
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}
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/*
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auth login 验证
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*/
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func LoginAuth(username, password, host string) Auth {
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return &loginAuth{username, password, host}
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}
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/*
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初步验证服务器信息，输入账号
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*/
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func (a *loginAuth) Start(server *ServerInfo) (string, []byte, error) {
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// 如果不是安全连接，也不是本地的服务器，报错，不允许不安全的连接
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if !server.TLS && !isLocalhost(server.Name) {
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return "", nil, errors.New("unencrypted connection")
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}
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// 如果服务器信息和 Auth 对象的服务器信息不一致，报错
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if server.Name != a.host {
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return "", nil, errors.New("wrong host name")
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}
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// 验证时需要的账号
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resp := []byte(a.username)
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// "auth login" 命令
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return "LOGIN", resp, nil
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}
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/*
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进一步进行验证，输入密码
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*/
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func (a *loginAuth) Next(fromServer []byte, more bool) ([]byte, error) {
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// 如果服务器需要更多验证，报错
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if more {
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return []byte(a.password), nil
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}
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return nil, nil
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}
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