是否存在Icalendar事件RSVP的标准和实现

Question

摘要是我现在正在实现事件确认系统,无法找到ICalendar回复的正确格式.因此,我想知道是否有一个完整的REPLY消息的例子,也许是一个可以包装它的PHP库？

现在有关详细信息,我们会收到外部电子邮件,包括要求RSVP的活动邀请.以下是iCal文件的摘录:

ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="'user@company.com'":MAILTO:user@company.com ORGANIZER;CN="Organ Izer":MAILTO:organizer@company.com

我找不到回复标准将RSVP发送给组织者.在RFC 2447中提到"ATTSTAT"和"PARTSTAT"参数.

通过尝试将以下消息邮寄到Google日历,事件不会更新.

$headers = "Content-Type:text/calendar; Content-Disposition: inline; charset=utf-8;\r\n";
$headers .= "Content-Type: text/plain;charset=\"utf-8\"\r\n";
$headers .= 'BEGIN:VCALENDAR
VERSION:2.0
METHOD:REPLY
BEGIN:VEVENT
ORGANIZER;CN=JCharles:mailto:abcdef@gmail.com
UID:oc7ae7537999onscsivg8km123@google.com
ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=CONFIRMED;RSVP=
 TRUE;CN=jc@company.se;X-NUM-GUESTS=0:mailto:jc@company.se
LOCATION:
SEQUENCE:1
END:VEVENT
END:VCALENDAR';

mail('abcdef@gmail.com', 'Accepted:', "Event accepted", $headers);

Ical消息或方法本身有什么问题吗？这是应该发送事件回复的方式吗？

Answer 1

以下代码适用于Google日历.附件由gmail处理,接受级联到事件.

$vcal = 'BEGIN:VCALENDAR
PRODID:-//EXAMPLE.NU//SE
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:REPLY
BEGIN:VEVENT
DTSTART:20101215T160000Z
DTEND:20101215T170000Z
DTSTAMP:'.date('Ymd\THis\Z').'
ORGANIZER;CN=Jean-Charles:mailto:example@gmail.com
UID:u2coh5g3bppo2d2o3t@google.com
ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=ACCEPTED;
 CN=user@example.se:mailto:user@example.se
CREATED:19000101T120000Z
DESCRIPTION:äåóö
LAST-MODIFIED:'.date('Ymd\THis\Z').'
LOCATION:
SEQUENCE:0
STATUS:CONFIRMED
SUMMARY:a new test
TRANSP:OPAQUE
END:VEVENT
END:VCALENDAR
';

$vcal = utf8_encode($vcal);

require('lib/phpmailer/class.phpmailer.php');
$mail = new PHPMailer();
$mail->AddAddress('example@gmail.com', 'Jean-Charles');
$mail->Body = "HTML BODY";
$mail->AltBody = "Text body";
$mail->Subject = "Email title";
$mail->Sender = "User Name";
$mail->FromName = "user@example.se";
$mail->AddStringAttachment($vcal, 'meeting.ics', "base64", "text/calendar");
$mail->Send();

重要的是

• 内容类型:文本/日历
• 方法:REPLY
• PARTSTAT:受理| DECLINED
• UID

我不确定是否有必要发回所有冗余信息(描述,摘要,dtend,dtstart)