通过Google应用引擎发送会议邀请邮件 [英] Send meeting invitation mail over Google app engine

问题描述

我想发送iCalendar会议邀请。我正在使用Google App引擎，Java。
我设法发送带有iCalendar文件的邮件作为附件，但像Outlook这样的程序不会自动将其识别为会议邀请。

我必须将附件的内容类型设置为：text / calendar; method = REQUEST，但在我看来，GAE不接受？

更新：上面我错了。我实际上发现，我必须使用iCalendar部分直接在内容中发送邮件，而不是附件！所以我的问题是，GAE似乎不接受设置消息本身的内容类型。

有没有人通过使用GAE的邮件成功发送会议邀请iCalendar元素？ / p>

更新：

我明白，我必须更具体。其实我想发送iMip消息。 iMip消息不是多部分，其内容类型是文本/日历。在发送会议邀请的情况下，它将是文本/日历;方法=请求。所以我试过这个：

 消息msg = new MimeMessage（session）; 
 msg.setContent（iCalendarAsString，text / calendar; method = REQUEST）; 
  

然后我用Transport.send（..）发送消息;

在GAE的开发服务器的日志中，我们看到内容类型是text / plain。
这就是为什么我说，我认为，GAE不接受设置不同的内容类型。

或者我错了？

更新2

确定，以下是完整的代码：

属性props = new Properties（）;

  
会话session = Session.getDefaultInstance（道具，null）; 
 
 
 try {
消息msg = new MimeMessage（session）; 
 
 msg.setFrom（new InternetAddress（[e-mail]，SomeApp））; 
 msg.addRecipient（Message.RecipientType.TO，
 new InternetAddress（[e-mail]，Sven Busse））; 
 msg.setSubject（会议邀请！）; 
 msg.setContent（iCalendarAsString，text / calendar; method = REQUEST）; 
 
 Transport.send（msg）; 
 
} catch（AddressException e）{
 log.warning（e.toString（））; 
 e.printStackTrace（）; 
} catch（MessagingException e）{
 log.warning（e.toString（））; 
 e.printStackTrace（）; 
} catch（UnsupportedEncodingException e）{
 log.warning（e.toString（））; 
 e.printStackTrace（）; 
} 
  

所以，我将内容类型设置为text / calendar; method =请求。一旦我发送，这是日志：

  14.09.2011 09:52:59 com.google.appengine.api。 mail.dev.LocalMailService日志
信息：MailService.send 
 INFO：From：SomeApp< [e-mail]> 
信息：收件人：Sven Busse< [e-mail]> 
信息：回复：SomeApp< [e-mail]> 
信息：主题：会议邀请！ 
 INFO：Body：
 INFO：Content-type：text / plain 
 INFO：数据长度：458 
  

所以，日志看起来不漂亮，但你可以看到，内容类型已经改变为text / plain。

更新3：

 发送到：[e-mail] 
收到：10.68.59.7与SMTP id v7cs112540pbq; 
 Thu，2011年9月15日07:45:55 -0700（PDT）
收到：由10.52.195.44与SMTP id dh12mr1121151vdb.20.1316097954738; 
 Thu，2011年9月15日07:45:54 -0700（PDT）
返回路径：< [e-mail]> 
收到：从mail-vw0-f69.google.com（mail-vw0-f69.google.com [209.85.212.69]）
由mx.google.com与ESMTPS id o9si1579035vcv.136.2011.09.15 .07.45.53 
（version = TLSv1 / SSLv3 cipher = OTHER）; 
 Thu，2011年9月15日07:45:53 -0700（PDT）
 Received-SPF：pass（google.com：domain of [e-mail] .com指定209.85.212.69为允许的发件人）client-ip = 209.85.212.69; 
验证结果：mx.google.com; SPF =通（google.com：[e-mail]的域指定209.85.212.69所允许的发送者）smtp.mail=[e-mail] .bounces.google.com 
收到：由vws20与SMTP id 20so3831617vws.4 
 for< [e-mail]> ;;星期四，2011年9月15日07:45:53 -0700（PDT）
 MIME版本：1.0 
收到：由10.236.187.1与SMTP id x1mr5481998yhm.8.1316097953249; Thu，15 
 2011年9月07:45:53 -0700（PDT）
回复：SomeApp< [e-mail]> 
 X-Google-Appengine-App-Id：someapp 
 Message-ID：< [e-mail]& 
日期：星期四，2011年9月15日14:45:53 +0000 
主题：会议邀请！ 
 From：SomeApp< [e-mail]> 
至：Sven Busse< [e-mail]> 
 Content-Type：text / plain;字符集= ISO-8859-1;格式=流动; delsp = yes 
 
开始：VCALENDAR 
 PRODID： -  // Ben Fortuna // iCal4j 1.0 // EN 
 VERSION：2.0 
 CALSCALE：GREGORIAN 
方法：REQUEST 
 BEGIN：VEVENT 
 DTSTAMP：20110915T144552Z 
 UID：[e-mail] 
摘要：收费projekt\，macht viel spass。 
 DTSTART; VALUE = DATE：20110919 
 DTEND; VALUE = DATE：20110926 
描述：tolles projekt\，macht viel spass。 
 ATTENDEE; ROLE = REQ-PARTICIPANT; RSVP = TRUE：mailto：[e-mail] 
 ORGANIZER：mailto：[e-mail] 
 END：VEVENT 
 END ：VCALENDAR 
  

解决方案

也许你应该考虑使用像 http://context.io/ ？

（不是附属！）

i want to send iCalendar meeting invitations. I am using Google App engine, Java. I managed to send a mail with an iCalendar file as an attachment, but programs like Outlook do not automatically recognize it as a meeting invitation.

I figure, i have to set the content-type of the attachment to: "text/calendar; method=REQUEST", but it seems to me, GAE is not accepting this?

Update: I was wrong above. I actually found, that i have to send the mail with the iCalendar part directly in the content, not as an attachment! So my problem is, GAE seems not to accept setting the content-type of the message itself.

Has anyone succesfully send a meeting invitation iCalendar element through mail using GAE?

Update:

I understand, i have to be more specific. In fact, i want to send iMip messages. iMip messages are not multipart, their content-type is "text/calendar". And in the case of sending a meeting invitation, it would be "text/calendar;method=REQUEST". So i tried this:

Message msg = new MimeMessage(session);
msg.setContent(iCalendarAsString, "text/calendar;method=REQUEST");

Then i send the message with Transport.send(..);

In the logs in the development server of GAE i then see, that the content type is "text/plain". that's why i said, i think, GAE is not accepting setting a different content type.

Or am i wrong?

Update 2

OK, here's the complete code:

Properties props = new Properties();
Session session = Session.getDefaultInstance(props, null);


try {
    Message msg = new MimeMessage(session);

    msg.setFrom(new InternetAddress("[e-mail]", "SomeApp"));
    msg.addRecipient(Message.RecipientType.TO,
            new InternetAddress("[e-mail]", "Sven Busse"));
    msg.setSubject("meeting invitation!");
    msg.setContent(iCalendarAsString, "text/calendar;method=REQUEST");

    Transport.send(msg);

} catch (AddressException e) {
    log.warning(e.toString());
    e.printStackTrace();
} catch (MessagingException e) {
    log.warning(e.toString());
    e.printStackTrace();
} catch (UnsupportedEncodingException e) {
    log.warning(e.toString());
    e.printStackTrace();
}

So, i set the content-type to "text/calendar;method=REQUEST". And once i send, this is the logs:

14.09.2011 09:52:59 com.google.appengine.api.mail.dev.LocalMailService log
INFO: MailService.send
INFO:   From: SomeApp <[e-mail]>
INFO:   To: Sven Busse <[e-mail]>
INFO:   Reply-to: SomeApp <[e-mail]>
INFO:   Subject: meeting invitation!
INFO:   Body:
INFO:     Content-type: text/plain
INFO:     Data length: 458

So, the logs don't look pretty, but you can see, the content-type has changed to "text/plain".

Update 3:

Delivered-To: [e-mail]
Received: by 10.68.59.7 with SMTP id v7cs112540pbq;
        Thu, 15 Sep 2011 07:45:55 -0700 (PDT)
Received: by 10.52.95.44 with SMTP id dh12mr1121151vdb.20.1316097954738;
        Thu, 15 Sep 2011 07:45:54 -0700 (PDT)
Return-Path: <[e-mail]>
Received: from mail-vw0-f69.google.com (mail-vw0-f69.google.com [209.85.212.69])
        by mx.google.com with ESMTPS id o9si1579035vcv.136.2011.09.15.07.45.53
        (version=TLSv1/SSLv3 cipher=OTHER);
        Thu, 15 Sep 2011 07:45:53 -0700 (PDT)
Received-SPF: pass (google.com: domain of [e-mail] designates 209.85.212.69 as permitted sender) client-ip=209.85.212.69;
Authentication-Results: mx.google.com; spf=pass (google.com: domain of [e-mail] designates 209.85.212.69 as permitted sender) smtp.mail=[e-mail]
Received: by vws20 with SMTP id 20so3831617vws.4
        for <[e-mail]>; Thu, 15 Sep 2011 07:45:53 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.236.187.1 with SMTP id x1mr5481998yhm.8.1316097953249; Thu, 15
 Sep 2011 07:45:53 -0700 (PDT)
Reply-To: SomeApp <[e-mail]>
X-Google-Appengine-App-Id: someapp
Message-ID: <[e-mail]>
Date: Thu, 15 Sep 2011 14:45:53 +0000
Subject: meeting invitation!
From: SomeApp <[e-mail]>
To: Sven Busse <[e-mail]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes

BEGIN:VCALENDAR
PRODID:-//Ben Fortuna//iCal4j 1.0//EN
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:REQUEST
BEGIN:VEVENT
DTSTAMP:20110915T144552Z
UID:[e-mail]
SUMMARY:tolles projekt\, macht viel spass.
DTSTART;VALUE=DATE:20110919
DTEND;VALUE=DATE:20110926
DESCRIPTION:tolles projekt\, macht viel spass.
ATTENDEE;ROLE=REQ-PARTICIPANT;RSVP=TRUE:mailto:[e-mail]
ORGANIZER:mailto:[e-mail]
END:VEVENT
END:VCALENDAR

解决方案

Maybe you should think of using a service like http://context.io/ ?

(not affiliated !)

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