Aaron Guise
3ea22161d9
Adds a "Forward as attachment" action to the message overflow menu (desktop and mobile), right beside the existing "Export as .eml" action. Opens a new forward-mode compose window with the original message attached as a message/rfc822 file instead of quoted inline - useful for reporting spam/phishing to an upstream gateway that expects the raw original as an attachment (the primary motivating use case: gateways like MxGuarddog require complete original headers, including the full mail path, for scanning), or for preserving a message's exact formatting/headers when forwarding. Implementation reuses the composer's existing attachment-carry-forward mechanism (the `attachments` useState initializer in email-composer.tsx already carries a forwarded message's own attachments into the new compose via `replyTo.attachments`) - this just adds one synthetic entry representing the whole original message, referenced by its existing blobId. No re-fetch or re-upload needed, since JMAP blobs are account-scoped rather than per-email. The inline quote-header step (prepareComposerQuoteHeader) is skipped, so the body starts blank instead of quoting the original. The core "build subject + attachment entry" logic is extracted into a pure, unit-tested helper (lib/forward-as-attachment.ts) rather than left inline in the already-large page component. Adds the forward_as_attachment locale key to all 24 locales (English text as a placeholder pending translation, following the existing add-a-key convention) to satisfy the translations completeness test.
45 lines
1.3 KiB
TypeScript
45 lines
1.3 KiB
TypeScript
import type { Email } from "@/lib/jmap/types";
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import { buildForwardSubject } from "@/lib/subject-prefix";
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import { emailExportFilename } from "@/lib/download-filename";
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export interface ForwardAsAttachmentEntry {
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blobId: string;
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name: string;
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type: "message/rfc822";
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size: number;
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}
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export interface ForwardAsAttachmentPayload {
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subject: string;
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attachment: ForwardAsAttachmentEntry;
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}
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/**
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* Build the subject and synthetic attachment entry for forwarding a
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* message as a message/rfc822 attachment instead of inline-quoted text
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* (e.g. reporting spam to an upstream gateway that expects the raw
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* original as an attachment, or preserving exact formatting/headers).
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*
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* Referenced by blobId, not re-uploaded - JMAP blobs are account-scoped,
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* not per-email, so the same blobId a message already has can be attached
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* to a brand new outgoing email directly.
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*
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* Returns null when the email has no blobId (nothing to reference).
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*/
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export function buildForwardAsAttachmentPayload(
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email: Email,
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forwardPrefix: string,
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): ForwardAsAttachmentPayload | null {
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if (!email.blobId) return null;
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return {
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subject: buildForwardSubject(email.subject, forwardPrefix),
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attachment: {
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blobId: email.blobId,
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name: emailExportFilename(email),
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type: "message/rfc822",
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size: email.size,
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},
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};
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}
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