I have obtained the mail content and the necessary headers using Gmail API. I want to write those into mbox files. I could find Go packages and samples to read and parse mbox files. But how to create and write mbox file using Go?
1条回答 默认 最新
- duanhuang3074 2016-03-18 09:22关注
The mbox file format (Wikipedia) is actually super-simple.
Each mail has a first line that starts "From ". Any first line in the email body that happens to start with "From " has either " " or ">" prepended. After each mail body, there's an extra blank line inserted. Typically, a mail header already has a "From ..." first line, so what you need to do is "iterate through each email, print it, scan the body to ensure all lines that start "From " have an escape, then finish each mail with a blank line".
Something like the following (will need adapting to how you represent emails):
package main import ( "fmt" "io" "os" "strings" ) type Mail struct { Headers []string Body []string } func (m *Mail) Save(w io.Writer) { for _, h := range m.Headers { fmt.Fprintln(w, h) } fmt.Println("") for _, b := range m.Body { if strings.HasPrefix(b, "From ") { fmt.Fprintln(w, ">", b) } else { fmt.Fprintln(w, b) } } } func WriteMbox(w io.Writer, mails []Mail) { for _, m := range mails { m.Save(w) fmt.Fprintln(w, "") } } func main() { m := Mail{Headers: []string{"From test", "Subject: Test"}, Body: []string{"Mail body, totes, like"}} WriteMbox(os.Stdout, []Mail{m, m, m}) }
本回答被题主选为最佳回答 , 对您是否有帮助呢?解决 无用评论 打赏 举报
悬赏问题
- ¥15 安卓adb backup备份应用数据失败
- ¥15 eclipse运行项目时遇到的问题
- ¥15 关于#c##的问题:最近需要用CAT工具Trados进行一些开发
- ¥15 南大pa1 小游戏没有界面,并且报了如下错误,尝试过换显卡驱动,但是好像不行
- ¥15 没有证书,nginx怎么反向代理到只能接受https的公网网站
- ¥50 成都蓉城足球俱乐部小程序抢票
- ¥15 yolov7训练自己的数据集
- ¥15 esp8266与51单片机连接问题(标签-单片机|关键词-串口)(相关搜索:51单片机|单片机|测试代码)
- ¥15 电力市场出清matlab yalmip kkt 双层优化问题
- ¥30 ros小车路径规划实现不了,如何解决?(操作系统-ubuntu)