File size: 1,183 Bytes
fc93158 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | const ENVELOPE_PREFIX = /^\[([^\]]+)\]\s*/;
const ENVELOPE_CHANNELS = [
"WebChat",
"WhatsApp",
"Telegram",
"Signal",
"Slack",
"Discord",
"Google Chat",
"iMessage",
"Teams",
"Matrix",
"Zalo",
"Zalo Personal",
"BlueBubbles",
];
const MESSAGE_ID_LINE = /^\s*\[message_id:\s*[^\]]+\]\s*$/i;
function looksLikeEnvelopeHeader(header: string): boolean {
if (/\d{4}-\d{2}-\d{2}T\d{2}:\d{2}Z\b/.test(header)) {
return true;
}
if (/\d{4}-\d{2}-\d{2} \d{2}:\d{2}\b/.test(header)) {
return true;
}
return ENVELOPE_CHANNELS.some((label) => header.startsWith(`${label} `));
}
export function stripEnvelope(text: string): string {
const match = text.match(ENVELOPE_PREFIX);
if (!match) {
return text;
}
const header = match[1] ?? "";
if (!looksLikeEnvelopeHeader(header)) {
return text;
}
return text.slice(match[0].length);
}
export function stripMessageIdHints(text: string): string {
if (!/\[message_id:/i.test(text)) {
return text;
}
const lines = text.split(/\r?\n/);
const filtered = lines.filter((line) => !MESSAGE_ID_LINE.test(line));
return filtered.length === lines.length ? text : filtered.join("\n");
}
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