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fix: resolve TG message character limit overflow

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This commit is contained in:
eoao
2026-05-10 01:02:02 +08:00
parent 65680c46fd
commit 84e7e2e9d8
1 changed files with 32 additions and 9 deletions
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41
mail-worker/src/template/email-msg.js
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@@ -1,39 +1,62 @@
import emailUtils from '../utils/email-utils';
const TELEGRAM_MESSAGE_LIMIT = 3500;
const TRUNCATED_SUFFIX = '...';
function escapeHtml(text = '') {
return text
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;');
}
function truncateText(text, maxLength) {
if (!text || text.length <= maxLength) {
return text || '';
}
if (maxLength <= TRUNCATED_SUFFIX.length) {
return TRUNCATED_SUFFIX.slice(0, maxLength);
}
return text.slice(0, maxLength - TRUNCATED_SUFFIX.length) + TRUNCATED_SUFFIX;
}
export default function emailMsgTemplate(email, tgMsgTo, tgMsgFrom, tgMsgText) {
let template = `<b>${email.subject}</b>`
let template = `<b>${escapeHtml(email.subject || '')}</b>`
if (tgMsgFrom === 'only-name') {
template += `
From\u200B：${email.name}`
From\u200B：${escapeHtml(email.name || '')}`
}
if (tgMsgFrom === 'show') {
template += `
From\u200B：${email.name} &lt;${email.sendEmail}&gt;`
From\u200B：${escapeHtml(email.name || '')} &lt;${escapeHtml(email.sendEmail || '')}&gt;`
}
if(tgMsgTo === 'show' && tgMsgFrom === 'hide') {
template += `
To：\u200B${email.toEmail}`
To：\u200B${escapeHtml(email.toEmail || '')}`
} else if(tgMsgTo === 'show') {
template += `
To：\u200B${email.toEmail}`
To：\u200B${escapeHtml(email.toEmail || '')}`
}
const text = (emailUtils.formatText(email.text) || emailUtils.htmlToText(email.content))
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;');
const text = escapeHtml(emailUtils.formatText(email.text) || emailUtils.htmlToText(email.content));
if(tgMsgText === 'show') {
const prefix = `${template}
`;
const maxTextLength = Math.max(0, TELEGRAM_MESSAGE_LIMIT - prefix.length);
template += `
${text}`
${truncateText(text, maxTextLength)}`
}
return template;