Access to mail header field in the mail folder list

[andreask]

Hi,

I would like to get access to an arbitrary mail header when building the mail folder overview. The mails will contain an additional header denoting them to be verified ( e.g. 'contains a valid DKIM signature' ). The ajax api offers access to a limited set of headers (just the lucky ones having a number assigned). Is there a way to access the other headers without applying for a number ?

Thanks in advance,

Andreas

[Viktor Pracht]

See "Get a list of mails" in the HTTP API. It has a parameter "headers".

If you want to add an icon to existing mail lists, then you're lucky that we've already needed to hack this before. Although it's a not supported API, you can try the following:

if (temporary.lists.mail) {
    temporary.lists.mail.addIcon({
        name: ["headers/X-my-header"],
        width: "16px",
        isVisible: function(mail) {
            return Boolean(mail.headers && mail.headers["X-my-header"]);
        },
        getIcon: function(mail) {
            switch (mail.headers["X-my-header"]) {
                case "specialValue":
                    return "/plugins/com.example.myplugin/images/special.png";
                default:
                    return "img/dummy.gif";
            }
        }
    });
}

[andreask]

Thanks Viktor,

the headers parameter works well !

But I'm a bit stuck with extending the js functionality. What type of event I should register for ? Got no idea which event marks the rendering of the mail list.

And, where to put the snippet you supplied ? In mail.js ?

Greetings

Andreas

[Viktor Pracht]

It's for a plugin (using the Plugin API).