如何从Gmail下载包含附件的所有电子邮件？

Question

如何连接到Gmail并确定哪些邮件包含附件？然后我想下载每个附件,在我处理它时为每条消息打印出Subject:和From :.

Answer 1

艰难的一个:-)

import email, getpass, imaplib, os

detach_dir = '.' # directory where to save attachments (default: current)
user = raw_input("Enter your GMail username:")
pwd = getpass.getpass("Enter your password: ")

# connecting to the gmail imap server
m = imaplib.IMAP4_SSL("imap.gmail.com")
m.login(user,pwd)
m.select("[Gmail]/All Mail") # here you a can choose a mail box like INBOX instead
# use m.list() to get all the mailboxes

resp, items = m.search(None, "ALL") # you could filter using the IMAP rules here (check http://www.example-code.com/csharp/imap-search-critera.asp)
items = items[0].split() # getting the mails id

for emailid in items:
    resp, data = m.fetch(emailid, "(RFC822)") # fetching the mail, "`(RFC822)`" means "get the whole stuff", but you can ask for headers only, etc
    email_body = data[0][1] # getting the mail content
    mail = email.message_from_string(email_body) # parsing the mail content to get a mail object

    #Check if any attachments at all
    if mail.get_content_maintype() != 'multipart':
        continue

    print "["+mail["From"]+"] :" + mail["Subject"]

    # we use walk to create a generator so we can iterate on the parts and forget about the recursive headach
    for part in mail.walk():
        # multipart are just containers, so we skip them
        if part.get_content_maintype() == 'multipart':
            continue

        # is this part an attachment ?
        if part.get('Content-Disposition') is None:
            continue

        filename = part.get_filename()
        counter = 1

        # if there is no filename, we create one with a counter to avoid duplicates
        if not filename:
            filename = 'part-%03d%s' % (counter, 'bin')
            counter += 1

        att_path = os.path.join(detach_dir, filename)

        #Check if its already there
        if not os.path.isfile(att_path) :
            # finally write the stuff
            fp = open(att_path, 'wb')
            fp.write(part.get_payload(decode=True))
            fp.close()

Wowww!那是件好事.;-)但是在Java中尝试相同,只是为了好玩!

顺便说一句,我在shell中测试过,因此可能会出现一些错误.

请享用

编辑:

由于邮箱名称可以从一个国家/地区更改为另一个国家/地区,因此我建议您先执行m.list()并选择项目,m.select("the mailbox name")以避免此错误:

imaplib.error:命令SEARCH在状态AUTH中非法,只允许在SELECTED状态

Answer 2

我不是Perl的专家,但我所知道的是,GMail支持IMAP和POP3,2协议是完全标准的,并允许你这样做.

也许这可以帮助你开始.

Answer 3

#!/usr/bin/env python
"""Save all attachments for given gmail account."""
import os, sys
from libgmail import GmailAccount

ga = GmailAccount("your.account@gmail.com", "pA$$w0Rd_")
ga.login()

# folders: inbox, starred, all, drafts, sent, spam
for thread in ga.getMessagesByFolder('all', allPages=True):
    for msg in thread:
        sys.stdout.write('.')
        if msg.attachments:
           print "\n", msg.id, msg.number, msg.subject, msg.sender
           for att in msg.attachments:
               if att.filename and att.content:
                  attdir = os.path.join(thread.id, msg.id)
                  if not os.path.isdir(attdir):
                     os.makedirs(attdir)                
                  with open(os.path.join(attdir, att.filename), 'wb') as f:
                       f.write(att.content)

未经测试

1. 确保TOS允许此类脚本,否则您的帐户将被暂停
2. 可能有更好的选择:GMail离线模式,Thunderbird + ExtractExtensions,GmailFS,Gmail驱动器等.

Answer 4

看看Mail :: Webmail :: Gmail:

获得附件

获取附件有两种方法:

1 - >通过发送对返回的特定附件的引用 get_indv_email

# Creates an array of references to every attachment in your account
my $messages = $gmail->get_messages();
my @attachments;

foreach ( @{ $messages } ) {
    my $email = $gmail->get_indv_email( msg => $_ );
    if ( defined( $email->{ $_->{ 'id' } }->{ 'attachments' } ) ) {
        foreach ( @{ $email->{ $_->{ 'id' } }->{ 'attachments' } } ) {
            push( @attachments, $gmail->get_attachment( attachment => $_ ) );
            if ( $gmail->error() ) {
                print $gmail->error_msg();
            }
        }
    }
}

2 - >或者通过发送附件ID和消息ID

#retrieve specific attachment
my $msgid = 'F000000000';
my $attachid = '0.1';
my $attach_ref = $gmail->get_attachment( attid => $attachid, msgid => $msgid );

(返回对包含附件中数据的标量的引用.)