如何在mailcore2中获取邮件正文 [英] how to fetch an email body in mailcore2

问题描述

我尝试从 mailcore 迁移到 mailcore2 。以前在mailcore中，获取一个body结构就像 [msg fetchBodyStructure] 一样简单，其中msg是一个 CTCoreMessage 对象。

I've trying to migrate from mailcore to mailcore2. Previously in mailcore, fetching a body structure was as simple as [msg fetchBodyStructure] where msg is a CTCoreMessage object.

使用mailcore2，事情似乎更复杂。在 MCOIMAPSession的获取消息体的文档，我们有：

With mailcore2, things seem to be more complex. In MCOIMAPSession's documentation for fetching a message body, we have:

MCOIMAPFetchContentOperation * op = 
    [session fetchMessageAttachmentByUIDOperationWithFolder:@"INBOX"
                                                        uid:[message uid]
                                                     partID:"1.2"
                                                   encoding:[part encoding]];
 [op start:^(NSError * error, NSData * partData) {
 }];

我绝对不知道这个 1.2 应该是指的。作者将用户引用到 RFC 822 ， RFC 2822 和 RFC 5322 但是他们都没有一个直截了当的答案。

I have absolutely no idea what this 1.2 is supposed to refer to. The authors refer the users to RFC 822, RFC 2822, and RFC 5322 but none of them has a straightforward answer to the above.

有人可以给我一个简单的代码示例来获取整个邮件正文吗？

Can someone please show me a simple code sample of fetching an entire message body?

推荐答案

我不知道为什么人们会使事情变得复杂：
这是你如何使用MailCore2获取电子邮件正文：

I'm not sure why people complicate things: this is how you fetch email body with MailCore2:

MCOIMAPSession *session = [[MCOIMAPSession alloc] init];
    [session setHostname:@"imap.gmail.com"];
    [session setPort:993];
    [session setUsername:[UICKeyChainStore stringForKey:@"username"]];
    [session setPassword:[UICKeyChainStore stringForKey:@"password"]];
    [session setConnectionType:MCOConnectionTypeTLS];
    MCOIMAPFetchContentOperation *operation = [session fetchMessageByUIDOperationWithFolder:@"INBOX" uid:message.uid];

    [operation start:^(NSError *error, NSData *data) {
        MCOMessageParser *messageParser = [[MCOMessageParser alloc] initWithData:data];

        NSString *msgHTMLBody = [messageParser htmlBodyRendering];
        [webView loadHTMLString:msgHTMLBody baseURL:nil];
    }];

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