Files
EMLy/frontend/src/lib/components/MailViewer.svelte
2026-02-04 23:41:16 +01:00

646 lines
18 KiB
Svelte

<script lang="ts">
import { X, MailOpen, Image, FileText, File, ShieldCheck, Shield, Signature, FileCode, Loader2 } from "@lucide/svelte";
import { ShowOpenFileDialog, ReadEML, OpenPDF, OpenImageWindow, OpenPDFWindow, OpenImage, ReadMSG, ReadPEC, OpenEMLWindow } from "$lib/wailsjs/go/main/App";
import type { internal } from "$lib/wailsjs/go/models";
import { sidebarOpen } from "$lib/stores/app";
import { onDestroy, onMount } from "svelte";
import { toast } from "svelte-sonner";
import { EventsOn, WindowShow, WindowUnminimise } from "$lib/wailsjs/runtime/runtime";
import { mailState } from "$lib/stores/mail-state.svelte";
import { settingsStore } from "$lib/stores/settings.svelte";
import * as m from "$lib/paraglide/messages";
let unregisterEvents = () => {};
let isLoading = $state(false);
let loadingText = $state("");
let iFrameUtilHTML = "<style>body{margin:0;padding:20px;font-family:sans-serif;} a{pointer-events:none!important;cursor:default!important;}</style><script>function handleWheel(event){if(event.ctrlKey){event.preventDefault();}}document.addEventListener('wheel',handleWheel,{passive:false});<\/script>";
function onClear() {
mailState.clear();
}
$effect(() => {
console.log("Current email changed:", mailState.currentEmail);
if(mailState.currentEmail !== null) {
sidebarOpen.set(false);
}
console.log(mailState.currentEmail?.attachments)
})
onDestroy(() => {
if (unregisterEvents) unregisterEvents();
});
onMount(async () => {
// Listen for second instance args
unregisterEvents = EventsOn("launchArgs", async (args: string[]) => {
console.log("got event launchArgs:", args);
if (args && args.length > 0) {
for (const arg of args) {
const lowerArg = arg.toLowerCase();
if (lowerArg.endsWith(".eml") || lowerArg.endsWith(".msg")) {
console.log("Loading file from second instance:", arg);
isLoading = true;
loadingText = m.layout_loading_text();
try {
let emlContent;
if (lowerArg.endsWith(".msg")) {
loadingText = m.mail_loading_msg_conversion();
emlContent = await ReadMSG(arg, true);
} else {
// EML handling
try {
emlContent = await ReadPEC(arg);
} catch (e) {
console.warn("ReadPEC failed, trying ReadEML:", e);
emlContent = await ReadEML(arg);
}
if (emlContent && emlContent.body) {
const trimmed = emlContent.body.trim();
const clean = trimmed.replace(/[\s\r\n]+/g, '');
if (clean.length > 0 && clean.length % 4 === 0 && /^[A-Za-z0-9+/]+=*$/.test(clean)) {
try {
emlContent.body = window.atob(clean);
} catch (e) { }
}
}
}
mailState.setParams(emlContent);
sidebarOpen.set(false);
WindowUnminimise();
WindowShow();
} catch (error) {
console.error("Failed to load email:", error);
toast.error("Failed to load email file");
} finally {
isLoading = false;
loadingText = "";
}
break;
}
}
}
});
});
async function openPDFHandler(base64Data: string, filename: string) {
try {
if (settingsStore.settings.useBuiltinPDFViewer) {
await OpenPDFWindow(base64Data, filename);
} else {
await OpenPDF(base64Data, filename);
}
} catch (error: string | any) {
if(error.includes(filename) && error.includes("already open")) {
toast.error(m.mail_pdf_already_open());
return;
}
console.error("Failed to open PDF:", error);
toast.error(m.mail_error_pdf());
}
}
async function openImageHandler(base64Data: string, filename: string) {
try {
if (settingsStore.settings.useBuiltinPreview) {
await OpenImageWindow(base64Data, filename);
} else {
await OpenImage(base64Data, filename);
}
} catch (error) {
console.error("Failed to open image:", error);
toast.error(m.mail_error_image());
}
}
async function openEMLHandler(base64Data: string, filename: string) {
try {
await OpenEMLWindow(base64Data, filename);
} catch (error) {
console.error("Failed to open EML:", error);
toast.error("Failed to open EML attachment");
}
}
async function onOpenMail() {
isLoading = true;
loadingText = m.layout_loading_text();
const result = await ShowOpenFileDialog();
if (result && result.length > 0) {
// Handle opening the mail file
try {
// If the file is .eml, otherwise if is .msg, read accordingly
let email: internal.EmailData;
if(result.toLowerCase().endsWith(".msg")) {
loadingText = m.mail_loading_msg_conversion();
email = await ReadMSG(result, true);
} else {
email = await ReadEML(result);
}
mailState.setParams(email);
sidebarOpen.set(false);
} catch (error) {
console.error("Failed to read EML file:", error);
toast.error(m.mail_error_opening());
} finally {
isLoading = false;
loadingText = "";
}
} else {
isLoading = false;
loadingText = "";
}
}
function arrayBufferToBase64(buffer: any): string {
if (typeof buffer === "string") return buffer; // Already base64 string
if (Array.isArray(buffer)) {
let binary = "";
const bytes = new Uint8Array(buffer);
const len = bytes.byteLength;
for (let i = 0; i < len; i++) {
binary += String.fromCharCode(bytes[i]);
}
return window.btoa(binary);
}
return "";
}
function handleWheel(event: WheelEvent) {
if (event.ctrlKey) {
event.preventDefault();
}
}
</script>
<div class="panel fill" aria-label="Events">
{#if isLoading}
<div class="loading-overlay">
<Loader2 class="spinner" size="48" />
<div class="loading-text">{loadingText}</div>
</div>
{/if}
<div class="events" role="log" aria-live="polite">
{#if mailState.currentEmail === null}
<div class="empty-state">
<div class="empty-icon">
<MailOpen size="48" strokeWidth={1} />
</div>
<div class="empty-text">{m.mail_no_email_selected()}</div>
<button class="browse-btn" onclick={onOpenMail} disabled={isLoading}>
{m.mail_open_eml_btn()}
</button>
</div>
{:else}
<div class="email-view">
<div class="email-header-content">
<div class="subject-row">
<div class="email-subject">
{mailState.currentEmail.subject || m.mail_subject_no_subject()}
</div>
<div class="controls">
<button
class="btn"
onclick={onOpenMail}
aria-label={m.mail_open_btn_label()}
title={m.mail_open_btn_title()}
disabled={isLoading}
>
<MailOpen size="15" ></MailOpen>
{m.mail_open_btn_text()}
</button>
<button
class="btn"
onclick={onClear}
aria-label={m.mail_close_btn_label()}
title={m.mail_close_btn_title()}
disabled={isLoading}
>
<X size="15" />
{m.mail_close_btn_text()}
</button>
</div>
</div>
<div class="email-meta-grid">
<span class="label">{m.mail_from()}</span>
<span class="value">{mailState.currentEmail.from}</span>
{#if mailState.currentEmail.to && mailState.currentEmail.to.length > 0}
<span class="label">{m.mail_to()}</span>
<span class="value">{mailState.currentEmail.to.join(", ")}</span>
{/if}
{#if mailState.currentEmail.cc && mailState.currentEmail.cc.length > 0}
<span class="label">{m.mail_cc()}</span>
<span class="value">{mailState.currentEmail.cc.join(", ")}</span>
{/if}
{#if mailState.currentEmail.bcc && mailState.currentEmail.bcc.length > 0}
<span class="label">{m.mail_bcc()}</span>
<span class="value">{mailState.currentEmail.bcc.join(", ")}</span>
{/if}
{#if mailState.currentEmail.isPec}
<span class="label">{m.mail_sign_label()}</span>
<span class="value"><span class="pec-badge" title="Posta Elettronica Certificata">
<ShieldCheck size="14" />
PEC
</span></span>
{/if}
</div>
</div>
<div class="email-attachments">
<span class="att-section-label">{m.mail_attachments()}</span>
<div class="att-list">
{#if mailState.currentEmail.attachments && mailState.currentEmail.attachments.length > 0}
{#each mailState.currentEmail.attachments as att}
{#if att.contentType.startsWith("image/")}
<button
class="att-btn image"
onclick={() => openImageHandler(arrayBufferToBase64(att.data), att.filename)}
>
<Image size="14" />
<span class="att-name">{att.filename}</span>
</button>
{:else if att.contentType === "application/pdf" || att.filename.toLowerCase().endsWith(".pdf")}
<button
class="att-btn pdf"
onclick={() => openPDFHandler(arrayBufferToBase64(att.data), att.filename)}
>
<FileText />
<span class="att-name">{att.filename}</span>
</button>
{:else if att.filename.toLowerCase().endsWith(".eml")}
<button
class="att-btn eml"
onclick={() => openEMLHandler(arrayBufferToBase64(att.data), att.filename)}
>
<MailOpen size="14" />
<span class="att-name">{att.filename}</span>
</button>
{:else if mailState.currentEmail.isPec && att.filename.toLowerCase().endsWith(".p7s")}
<a
class="att-btn file"
href={`data:${att.contentType};base64,${arrayBufferToBase64(att.data)}`}
download={att.filename}
>
<Signature size="14" />
<span class="att-name">{att.filename}</span>
</a>
{:else if mailState.currentEmail.isPec && att.filename.toLowerCase() === "daticert.xml"}
<a
class="att-btn file"
href={`data:${att.contentType};base64,${arrayBufferToBase64(att.data)}`}
download={att.filename}
>
<FileCode size="14" />
<span class="att-name">{att.filename}</span>
</a>
{:else}
<a
class="att-btn file"
href={`data:${att.contentType};base64,${arrayBufferToBase64(att.data)}`}
download={att.filename}
>
{#if att.contentType.startsWith("image/")}
<Image size="14" />
{:else}
<File size="14" />
{/if}
<span class="att-name">{att.filename}</span>
</a>
{/if}
{/each}
{:else}
<span class="att-empty">{m.mail_no_attachments()}</span>
{/if}
</div>
</div>
<div class="email-body-wrapper">
<iframe
srcdoc={mailState.currentEmail.body + iFrameUtilHTML}
title="Email Body"
class="email-iframe"
sandbox="allow-same-origin allow-scripts"
onwheel={handleWheel}
></iframe>
</div>
</div>
{/if}
</div>
</div>
<style>
.loading-overlay {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: rgba(0, 0, 0, 0.7);
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
z-index: 50;
backdrop-filter: blur(4px);
gap: 16px;
}
/* Make sure internal loader spins if not using class-based animation library like Tailwind */
:global(.spinner) {
animation: spin 1s linear infinite;
}
@keyframes spin {
from { transform: rotate(0deg); }
to { transform: rotate(360deg); }
}
.loading-text {
color: white;
font-size: 16px;
font-weight: 500;
}
.panel {
background: rgba(255, 255, 255, 0.04);
border: 1px solid rgba(255, 255, 255, 0.1);
border-radius: 14px;
overflow: hidden;
}
.panel.fill {
flex: 1 1 0;
min-height: 0;
display: flex;
flex-direction: column;
}
.btn {
display: inline-flex;
align-items: center;
gap: 8px;
height: 34px;
padding: 0 12px;
border-radius: 10px;
border: 1px solid rgba(255, 255, 255, 0.12);
background: rgba(255, 255, 255, 0.06);
color: inherit;
cursor: pointer;
user-select: none;
font-size: 11px;
font-weight: 700;
text-transform: uppercase;
letter-spacing: 0.05em;
color: rgba(255, 255, 255, 0.5);
}
.btn:hover {
background: rgba(255, 255, 255, 0.09);
}
.events {
flex: 1 1 auto;
min-height: 0;
overflow: auto;
padding: 0;
}
.email-view {
display: flex;
flex-direction: column;
height: 100%;
gap: 0;
}
.email-header-content {
background: rgba(255, 255, 255, 0.05);
padding: 16px;
border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.email-subject {
font-size: 18px;
font-weight: 600;
line-height: 1.25;
color: inherit;
min-width: 0;
overflow-wrap: break-word;
}
.subject-row {
display: flex;
justify-content: space-between;
align-items: flex-start;
gap: 16px;
margin-bottom: 12px;
}
.subject-row .controls {
display: flex;
gap: 6px;
flex-shrink: 0;
}
.subject-row .btn {
height: 28px;
padding: 0 8px;
}
.email-meta-grid {
display: grid;
grid-template-columns: 60px 1fr;
gap: 4px;
font-size: 13px;
}
.email-meta-grid .label {
text-align: right;
color: rgba(255, 255, 255, 0.5);
margin-right: 8px;
font-weight: 500;
}
.email-meta-grid .value {
color: rgba(255, 255, 255, 0.9);
word-break: break-all;
font-weight: 500;
}
.email-attachments {
padding: 10px 16px;
border-bottom: 1px solid rgba(255, 255, 255, 0.08);
background: rgba(255, 255, 255, 0.03);
display: flex;
align-items: center;
gap: 12px;
overflow-x: auto;
}
.att-section-label {
font-size: 11px;
font-weight: 700;
text-transform: uppercase;
letter-spacing: 0.05em;
color: rgba(255, 255, 255, 0.5);
flex-shrink: 0;
}
.att-list {
display: flex;
gap: 8px;
}
.att-btn {
display: inline-flex;
align-items: center;
gap: 6px;
height: 28px;
padding: 0 10px;
border-radius: 6px;
border: 1px solid rgba(255, 255, 255, 0.15);
background: transparent;
color: rgba(255, 255, 255, 0.8);
font-size: 12px;
cursor: pointer;
text-decoration: none;
max-width: 200px;
}
.att-btn:hover {
background: rgba(255, 255, 255, 0.05);
color: #fff;
}
.att-btn.image { color: #60a5fa; border-color: rgba(96, 165, 250, 0.3); }
.att-btn.image:hover { color: #93c5fd; }
.att-btn.pdf { color: #f87171; border-color: rgba(248, 113, 113, 0.3); }
.att-btn.pdf:hover { color: #fca5a5; }
.att-btn.eml { color: hsl(49, 80%, 49%); border-color: rgba(224, 206, 39, 0.3); }
.att-btn.eml:hover { color: hsl(49, 80%, 65%); }
.att-name {
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.email-body-wrapper {
flex: 1;
background: white;
position: relative;
min-height: 200px;
}
.email-iframe {
width: 100%;
height: 100%;
border: none;
display: block;
}
.empty-state {
height: 100%;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
gap: 16px;
opacity: 0.6;
padding: 20px;
}
.empty-icon {
opacity: 0.5;
}
.empty-text {
font-size: 14px;
font-weight: 500;
}
.browse-btn {
display: flex;
align-items: center;
justify-content: center;
height: 36px;
padding: 0 16px;
background: rgba(255, 255, 255, 0.1);
border: 1px solid rgba(255, 255, 255, 0.15);
border-radius: 8px;
color: white;
font-size: 13px;
font-weight: 500;
cursor: pointer;
transition: all 0.2s;
}
.browse-btn:hover {
background: rgba(255, 255, 255, 0.15);
border-color: rgba(255, 255, 255, 0.25);
}
.browse-btn:disabled, .btn:disabled {
opacity: 0.5;
cursor: not-allowed;
pointer-events: none;
}
::-webkit-scrollbar {
width: 6px;
height: 6px;
}
::-webkit-scrollbar-track {
background: transparent;
}
::-webkit-scrollbar-thumb {
background: rgba(255, 255, 255, 0.1);
border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover {
background: rgba(255, 255, 255, 0.2);
}
::-webkit-scrollbar-corner {
background: transparent;
}
.att-empty {
font-size: 11px;
color: rgba(255, 255, 255, 0.4);
font-style: italic;
}
.pec-badge {
display: inline-flex;
align-items: center;
gap: 4px;
background: rgba(16, 185, 129, 0.15);
color: #34d399;
border: 1px solid rgba(16, 185, 129, 0.3);
padding: 2px 6px;
border-radius: 6px;
font-size: 11px;
font-weight: 700;
vertical-align: middle;
user-select: none;
width: fit-content;
}
</style>