增加内容解析

go.mod

@@ -3,3 +3,5 @@ module github.com/taoshihan1991/imaptool
 go 1.14
 
 require github.com/emersion/go-imap v1.0.4
+
+require github.com/emersion/go-message v0.11.2

imaptool.go

@@ -4,6 +4,8 @@ import (
 	"bufio"
 	"flag"
 	"fmt"
+	"io"
+	"io/ioutil"
 	"log"
 	"os"
 	"strconv"
@@ -11,6 +13,7 @@ import (
 
 	"github.com/emersion/go-imap"
 	"github.com/emersion/go-imap/client"
+	"github.com/emersion/go-message/mail"
 )
 
 //全局变量
@@ -121,13 +124,74 @@ func main() {
 
 	log.Printf("最新的 %d 封信:", maxNum)
 	for msg := range messages {
-		log.Println("* " + msg.Envelope.Subject)
+		log.Printf("* %d :%s\n" ,msg.Uid,msg.Envelope.Subject)
 	}
 
 	if err := <-done; err != nil {
 		log.Fatal(err)
 	}
+	log.Println("读取第几封信信体:")
+	inLine = readLineFromInput()
+	mesIndex, _ := strconv.Atoi(inLine)
+	mesSeqSet := new(imap.SeqSet)
+	mesSeqSet.AddNum(uint32(mesIndex))
+	//获取整封信体
+	var section imap.BodySectionName
+	items := []imap.FetchItem{section.FetchItem()}
+
+	messages = make(chan *imap.Message, 1)
+	go func() {
+		if err := c.Fetch(mesSeqSet, items, messages); err != nil {
+			log.Fatal(err)
+		}
+	}()
+	msg := <-messages
+	if msg == nil {
+		log.Fatal("Server didn't returned message")
+	}
+	r := msg.GetBody(&section)
+	if r == nil {
+		log.Fatal("Server didn't returned message body")
+	}
+	mr, err := mail.CreateReader(r)
+	if err != nil {
+		log.Fatal(err)
+	}
 
+	// Print some info about the message
+	header := mr.Header
+	if date, err := header.Date(); err == nil {
+		log.Println("Date:", date)
+	}
+	if from, err := header.AddressList("From"); err == nil {
+		log.Println("From:", from)
+	}
+	if to, err := header.AddressList("To"); err == nil {
+		log.Println("To:", to)
+	}
+	if subject, err := header.Subject(); err == nil {
+		log.Println("Subject:", subject)
+	}
+	// Process each message's part
+	for {
+		p, err := mr.NextPart()
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			log.Fatal(err)
+		}
+
+		switch h := p.Header.(type) {
+		case *mail.InlineHeader:
+			// This is the message's text (can be plain-text or HTML)
+			b, _ := ioutil.ReadAll(p.Body)
+			log.Println("Got text: %v", string(b))
+		case *mail.AttachmentHeader:
+			// This is an attachment
+			filename, _ := h.Filename()
+			log.Println("Got attachment: %v", filename)
+		}
+	}
 	log.Println("结束!")
 }