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feat(telegram): render markdown and send author avatar photo

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RhenCloud 2026-08-03 06:42:29 +08:00
parent 568e206643
commit 50ae8c7607
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4 changed files with 175 additions and 32 deletions
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37
src/drivers/telegram/render.ts
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@ -8,35 +8,50 @@ function esc(s: string): string {
.replace(/"/g, """);
}
function inlineUrl(url?: string, text?: string): string {
const label = esc(text ?? url ?? "");
if (!url) return label;
return `<a href="${esc(url)}">${label}</a>`;
function mdToHtml(s: string): string {
let out = esc(s);
out = out.replace(/\[([^\]]+)\]\(([^)]+)\)/g, (_m, label, url) => `<a href="${esc(url)}">${label}</a>`);
out = out.replace(/\*\*([^*]+)\*\*/g, "<b>$1</b>");
out = out.replace(/`([^`]+)`/g, "<code>$1</code>");
out = out.replace(/(^|[^*])\*([^*]+)\*/g, "$1<i>$2</i>");
out = out.replace(/~~([^~]+)~~/g, "<s>$1</s>");
return out;
}
function formatTimestamp(ts?: string): string {
if (!ts) return "";
const d = new Date(ts);
if (Number.isNaN(d.getTime())) return ts;
const pad = (n: number): string => String(n).padStart(2, "0");
return `${d.getUTCFullYear()}-${pad(d.getUTCMonth() + 1)}-${pad(d.getUTCDate())} ${pad(d.getUTCHours())}:${pad(d.getUTCMinutes())} UTC`;
}
export function renderNeutralMessage(message: NeutralMessage): string {
const parts: string[] = [];
const title = inlineUrl(message.url, message.title);
const title = message.url
? `<a href="${esc(message.url)}">${mdToHtml(message.title)}</a>`
: mdToHtml(message.title);
parts.push(`<b>${title}</b>`);
if (message.author) {
const author = message.author.url
? `<a href="${esc(message.author.url)}">${esc(message.author.name)}</a>`
: esc(message.author.name);
const name = mdToHtml(message.author.name);
const author = message.author.url ? `<a href="${esc(message.author.url)}">${name}</a>` : name;
parts.push(`👤 ${author}`);
}
if (message.description) {
parts.push(esc(message.description));
parts.push(mdToHtml(message.description));
}
for (const field of message.fields ?? []) {
parts.push(`<b>${esc(field.name)}</b>: ${esc(field.value)}`);
parts.push(`<b>${mdToHtml(field.name)}</b>: ${mdToHtml(field.value)}`);
}
const meta: string[] = [];
if (message.footer) meta.push(esc(message.footer));
if (message.timestamp) meta.push(esc(message.timestamp));
const ts = formatTimestamp(message.timestamp);
if (ts) meta.push(ts);
if (meta.length > 0) {
parts.push(`<i>${meta.join(" · ")}</i>`);
}