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fix line endings #13

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Merged
ddbruce merged 1 commit into from
Jan 19, 2026
Merged

fix line endings #13

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20 changes: 20 additions & 0 deletions server.js
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Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,24 @@ function parseKeyValueText(text) {
return obj;
}

// Decode simple quoted-printable artifacts commonly found in raw email bodies.
// Removes soft line breaks (=<CR><LF>) and converts =HH hex escapes to characters.
function decodeQuotedPrintable(s) {
if (!s || typeof s !== "string") return s;
// remove soft line breaks
let out = s.replace(/=\r?\n/g, "");
// handle common hex escapes like =0A, sometimes mis-encoded as =OA
out = out.replace(/=0A/gi, "\n");
out = out.replace(/=0D/gi, "\r");
out = out.replace(/=OA/gi, "\n");
out = out.replace(/=OD/gi, "\r");
// general =HH hex escapes
out = out.replace(/=([0-9A-Fa-f]{2})/g, function (_, hex) {
return String.fromCharCode(parseInt(hex, 16));
});
return out;
}

// Use Google Geocoding API to turn an address into lat/lng.
// We "bias" to Troy, NY by setting components=locality:Troy|administrative_area:NY|country:US
// which will prefer results in Troy, NY.
Expand Down Expand Up @@ -355,6 +373,8 @@ const server = new SMTPServer({
}

// Trim and pass to handler
// Decode quoted-printable artifacts (soft breaks, =0A etc.) before parsing.
bodyCandidate = decodeQuotedPrintable(bodyCandidate);
await handleDispatchText(bodyCandidate);
callback();
} catch (err) {
Expand Down