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[feat](trx-frontend-http): display non-ASCII bytes as yellow hex in APRS info

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Render non-ASCII characters in decoded APRS info text as yellow
[0xNN] hex tags. Printable ASCII is HTML-escaped to prevent XSS.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
This commit is contained in:
Stan Grams
2026-02-08 21:52:44 +01:00
parent d9a496cfaf
commit 3489a74855
1 changed files with 20 additions and 1 deletions
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src/trx-client/trx-frontend/trx-frontend-http/assets/web/plugins/aprs.js
+20 -1
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@@ -429,6 +429,25 @@ function parseAprsLon(s) {
return Math.round(lon * 1e6) / 1e6; return Math.round(lon * 1e6) / 1e6;
} }
function escapeAprsInfo(str) {
let out = "";
for (let i = 0; i < str.length; i++) {
const code = str.charCodeAt(i);
if (code >= 0x20 && code <= 0x7e) {
const ch = str[i];
if (ch === "<") out += "&lt;";
else if (ch === ">") out += "&gt;";
else if (ch === "&") out += "&amp;";
else if (ch === '"') out += "&quot;";
else out += ch;
} else {
const hex = code.toString(16).toUpperCase().padStart(2, "0");
out += `<span style="color:var(--accent-yellow);">[0x${hex}]</span>`;
}
}
return out;
}
function addAprsPacket(pkt) { function addAprsPacket(pkt) {
const tag = pkt.crcOk ? "[APRS]" : "[APRS-CRC-FAIL]"; const tag = pkt.crcOk ? "[APRS]" : "[APRS-CRC-FAIL]";
console.log(tag, `${pkt.srcCall}>${pkt.destCall}${pkt.path ? "," + pkt.path : ""}: ${pkt.info}`, pkt); console.log(tag, `${pkt.srcCall}>${pkt.destCall}${pkt.path ? "," + pkt.path : ""}: ${pkt.info}`, pkt);
@@ -453,7 +472,7 @@ function addAprsPacket(pkt) {
const osmUrl = `https://www.openstreetmap.org/?mlat=${pkt.lat}&mlon=${pkt.lon}#map=15/${pkt.lat}/${pkt.lon}`; const osmUrl = `https://www.openstreetmap.org/?mlat=${pkt.lat}&mlon=${pkt.lon}#map=15/${pkt.lat}/${pkt.lon}`;
posHtml = ` <a class="aprs-pos" href="${osmUrl}" target="_blank">${pkt.lat.toFixed(4)}, ${pkt.lon.toFixed(4)}</a>`; posHtml = ` <a class="aprs-pos" href="${osmUrl}" target="_blank">${pkt.lat.toFixed(4)}, ${pkt.lon.toFixed(4)}</a>`;
} }
row.innerHTML = `<span class="aprs-time">${ts}</span>${symbolHtml}<span class="aprs-call">${pkt.srcCall}</span>&gt;${pkt.destCall}${pkt.path ? "," + pkt.path : ""}: <span title="${pkt.type}">${pkt.info}</span>${posHtml}${crcTag}`; row.innerHTML = `<span class="aprs-time">${ts}</span>${symbolHtml}<span class="aprs-call">${pkt.srcCall}</span>&gt;${pkt.destCall}${pkt.path ? "," + pkt.path : ""}: <span title="${pkt.type}">${escapeAprsInfo(pkt.info)}</span>${posHtml}${crcTag}`;
if (pkt.lat != null && pkt.lon != null && window.aprsMapAddStation) { if (pkt.lat != null && pkt.lon != null && window.aprsMapAddStation) {
window.aprsMapAddStation(pkt.srcCall, pkt.lat, pkt.lon, pkt.info, pkt.symbolTable, pkt.symbolCode); window.aprsMapAddStation(pkt.srcCall, pkt.lat, pkt.lon, pkt.info, pkt.symbolTable, pkt.symbolCode);
} }