A files.go

@@ -0,0 +1,66 @@ 
+package main
+
+import (
+	"encoding/base64"
+	"fmt"
+	"io"
+	"mime"
+	"mime/multipart"
+	"net/mail"
+	"net/textproto"
+	"strings"
+)
+
+func getfiles(files *map[string][]byte, parts interface{}) {
+	var body io.Reader
+	var head textproto.MIMEHeader
+	switch part := parts.(type) {
+	case *mail.Message:
+		body = part.Body
+		head = textproto.MIMEHeader(part.Header)
+	case *multipart.Part:
+		body = part
+		head = part.Header
+	}
+	mediaType, params, _ := mime.ParseMediaType(head.Get("Content-Type"))
+
+	if strings.HasPrefix(mediaType, "multipart/") {
+		mr := multipart.NewReader(body, params["boundary"])
+		var part *multipart.Part
+		var err error
+		for {
+			if part, err = mr.NextPart(); err != nil {
+				break
+			}
+			getfiles(files, part)
+			part.Close()
+		}
+		return
+	}
+	content, _ := io.ReadAll(body)
+	if head.Get("Content-Transfer-Encoding") == "base64" {
+		content, _ = base64.StdEncoding.DecodeString(string(content))
+	}
+	if len(content) == 0 {
+		return
+	}
+	name := params["name"]
+	if strings.HasPrefix(mediaType, "text/") || strings.HasPrefix(mediaType, "message/") {
+		name = "body.txt"
+		if strings.Contains(mediaType, "html") {
+			name = "index.html"
+		}
+	}
+	(*files)[name] = append((*files)[name], content...)
+}
+
+func EmlFiles(eml *mail.Message) map[string][]byte {
+	s := ""
+	for k := range eml.Header {
+		s += fmt.Sprintf("%s: %s\n", k, eml.Header.Get(k))
+	}
+	files := make(map[string][]byte)
+	files["header.txt"] = []byte(s)
+	getfiles(&files, eml)
+	return files
+}

M mailbox.py → mailbox.py

@@ -1,6 +1,7 @@ 
 #!/bin/python3.11
 
 import email
+import sys
 from email import policy
 from email.parser import BytesParser
 import os
@@ -14,12 +15,12 @@ 
 
 def showparts(eml):
     for part in eml.walk():
-        if part.get_content_disposition() == None and part.get_content_maintype() == 'text':
-            print(part.get_content_maintype(), part.get_content_subtype(), len(part.get_payload(decode=True)))
-        elif part.get_content_disposition() == 'attachment':
-            print(part.get_content_disposition(),part.get_content_maintype(), part.get_content_subtype(), len(part.get_payload(decode=True)))
+        if part.get_payload(decode=True) is not None:
+            print(part.get_content_type(), part.get_content_disposition(), part.get_filename(), len(part.get_payload(decode=True)))
 
 
-eml = openeml('test/pro.eml')
-print(eml.get('Subject'), eml.get('From'), eml.get('Date'))
-showparts(eml)+for file in sys.argv[1:]:
+    eml = openeml(file)
+    print(file)
+    showparts(eml)
+    print()