109 lines
2.5 KiB
Go
109 lines
2.5 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"time"
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"github.com/emersion/go-imap"
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"github.com/emersion/go-imap/client"
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"github.com/emersion/go-message/mail"
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)
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func main() {
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host := os.Getenv("IMAP_HOST")
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username := os.Getenv("IMAP_USERNAME")
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password := os.Getenv("IMAP_PASSWORD")
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if host == "" || username == "" || password == "" {
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log.Fatal("Environment variables IMAP_HOST, IMAP_USERNAME, and IMAP_PASSWORD must be set")
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}
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log.Println("Connecting to server...")
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// Connect to the IMAP server
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c, err := client.DialTLS(host, nil)
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if err != nil {
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log.Fatalf("Failed to connect to IMAP server: %v", err)
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}
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log.Println("Connected")
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defer c.Logout()
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// Login
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if err := c.Login(username, password); err != nil {
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log.Fatalf("Failed to log in: %v", err)
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}
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log.Println("Logged in")
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// Select INBOX
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_, err = c.Select("INBOX", false)
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if err != nil {
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log.Fatalf("Failed to select INBOX: %v", err)
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}
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// Set up criteria to search for new unseen emails
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criteria := imap.NewSearchCriteria()
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criteria.WithoutFlags = []string{imap.SeenFlag}
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ids, err := c.Search(criteria)
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if err != nil {
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log.Fatalf("Failed to search emails: %v", err)
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}
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if len(ids) == 0 {
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log.Println("No new emails")
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return
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}
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seqset := new(imap.SeqSet)
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seqset.AddNum(ids...)
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section := &imap.BodySectionName{}
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items := []imap.FetchItem{section.FetchItem(), imap.FetchEnvelope}
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messages := make(chan *imap.Message)
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go func() {
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if err := c.Fetch(seqset, items, messages); err != nil {
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log.Fatalf("Failed to fetch emails: %v", err)
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}
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}()
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for msg := range messages {
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if msg == nil {
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continue
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}
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r := mail.NewReader(msg.GetBody(section))
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email, err := r.NextPart()
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if err != nil {
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log.Fatalf("Failed to read message body: %v", err)
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}
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body, err := ioutil.ReadAll(email)
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if err != nil {
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log.Fatalf("Failed to read body content: %v", err)
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}
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emailData := map[string]interface{}{
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"subject": msg.Envelope.Subject,
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"from": msg.Envelope.From,
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"to": msg.Envelope.To,
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"date": msg.Envelope.Date,
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"body": string(body),
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}
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emailJSON, err := json.MarshalIndent(emailData, "", " ")
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if err != nil {
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log.Fatalf("Failed to marshal JSON: %v", err)
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}
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timestamp := time.Now().Format("20060102-150405")
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fileName := fmt.Sprintf("email-%s.json", timestamp)
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err = os.WriteFile(fileName, emailJSON, 0644)
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if err != nil {
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log.Fatalf("Failed to write file %s: %v", fileName, err)
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}
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log.Printf("Saved %s", fileName)
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}
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}
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