XMPP多用户聊天设置群聊的头像图像

时间:2016-02-10 07:14:20

标签: upload xmpp chat avatar

我正在开发一个具有聊天功能的iOS应用程序。我正在为该应用程序使用XMPP。在XMPP多用户聊天中,是否有任何功能可用于为会议室设置头像图像或组图像,就像我们在whatsapp中所做的那样?

我已查看XEP-0045分机,但它没有帮助,

所以我通过创建会议室来检查Psi,我开始明白用户有vcard因此他可以存储他的头像图像但是XMPP没有提供任何vcards我们创建的团体。现在我可能理解为什么它不可用。

然而,我无法说服whatsapp能够如何实现。我还想到了一个替代方法,使用pub / sub通过url发送组图像。但是我正在搜索XMPP提供的任何默认选项,这些默认选项对我来说是不可见的。

请在XMPP中确认该功能是否可用?或建议您有任何不同的答案?

2 个答案:

答案 0 :(得分:1)

更好的解决方案是在其他服务器中托管图像,进行上传并获取该图像的公共路径,并作为组图像的自定义节共享。

示例

  1. 开始上传图片
  2. 获取公共图片路径,例如https://...some网址... / groupimage_timestamp.jpg
  3. 将此消息作为群聊消息与以下节目分享
  4. <message from=abc@muc-light.chat.server.com to mygroup@muc-light.chat.server.com type=groupchat id=groupimage-XXXX>
      <body>groupimage</body>
      <metadata>
       <type>groupimage>
       <filesize>..bytes</filesize>
       <imageurl>https://...someurl.../groupimage_timestamp.jpg</imageurl>
      </metadata>
      </message>
    
    1. 现在将此消息广播为普通群组消息。
    2. 一旦任何收件人收到此消息,他将识别每次更新时的组图像URL是不同的,因为文件名末尾的时间戳工厂是不同的(如果您使用图像缓存)
      1. 解析此节后会自动更新此图片。
    3. 这是我对whatsapp家伙们的理解。

答案 1 :(得分:1)

从2018年开始,使用MUC电子名片:直接在聊天室MUC上设置带有PHOTO的电子名片。

https://docs.ejabberd.im/tutorials/muc-vcard/

请参阅XEP-0054和XEP-0153。

<iq id='set1' type='set' to='test@conference.localhost'> <vCard xmlns='vcard-temp'> <PHOTO> <TYPE>image/png</TYPE> <BINVAL> 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 </BINVAL> </PHOTO> </vCard> </iq>