Crate jmap_mime 

Thin adapter: mime_tree types → jmap_mail_types types.

All MIME parsing lives in mime-tree. This crate only maps field names.

Usage

A real MailBackend::parse_email implementation MUST surface mime_tree::parse and decode_body_value errors as JMAP method errors per RFC 8620 §3.6.2 — never panic. This example uses ? and returns Result so the pattern reads correctly when copied.

use jmap_mime::{message_to_jmap_body, body_value_to_jmap};
use jmap_types::Id;
use mime_tree::{parse, decode_body_value};

let raw = b"From: alice@example.com\r\n\
            Content-Type: text/plain; charset=utf-8\r\n\
            \r\n\
            Hello, world!\r\n";

let msg = parse(raw)?;

// Assign blob IDs for each leaf part (storage layer decides how).
let fields = message_to_jmap_body(&msg, |part| {
    Id::from(format!("blob-{}", part.part_id))
});

assert_eq!(fields.text_body.len(), 1);
assert_eq!(fields.text_body[0].type_.as_deref(), Some("text/plain"));

// Decode body values on demand and map them into EmailBodyValue.
for part_id in &fields.body_value_part_ids {
    if let Some(part) = msg.part_index.find_by_id(part_id) {
        let decoded = decode_body_value(raw, part, Some(8192))?;
        let _jmap_val = body_value_to_jmap(decoded);
    }
}

Structs

JmapBodyFields

The JMAP body fields derived from a parsed MIME message.

Constants

MAX_PART_DEPTH

Maximum multipart nesting depth this adapter will recurse into.

Functions

body_value_to_jmap

Convert a DecodedBodyValue into an EmailBodyValue.

message_to_jmap_body

Build the full JMAP body fields from a ParsedMessage.

part_to_jmap

Convert a ParsedPart (and its children) into an EmailBodyPart tree.