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file browser improvements and hardening.

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This commit is contained in:
KingKDot
2026-07-14 09:50:09 -05:00
parent 172703c33b
commit 9178bd0e63
17 changed files with 700 additions and 105 deletions
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Overlord-Server/public/assets/filebrowser-preview-modal.js
+34 -8
View File
@@ -22,8 +22,11 @@ export function createFilePreviewModal({
let currentPreviewBlobUrl = null;
let currentPreviewPath = null;
let currentPreviewAbortController = null;
function closePreview() {
currentPreviewAbortController?.abort();
currentPreviewAbortController = null;
if (filePreviewModal) filePreviewModal.classList.remove("show");
if (currentPreviewBlobUrl) {
URL.revokeObjectURL(currentPreviewBlobUrl);
@@ -48,6 +51,9 @@ export function createFilePreviewModal({
return;
}
currentPreviewAbortController?.abort();
const abortController = new AbortController();
currentPreviewAbortController = abortController;
currentPreviewPath = path;
if (previewFileNameEl) previewFileNameEl.textContent = fileName;
if (previewContent) previewContent.innerHTML = '<i class="fa-solid fa-circle-notch fa-spin text-slate-400 text-2xl"></i>';
@@ -59,7 +65,8 @@ export function createFilePreviewModal({
method: "POST",
headers: { "Content-Type": "application/json" },
credentials: "include",
body: JSON.stringify({ clientId, path }),
signal: abortController.signal,
body: JSON.stringify({ clientId, path, preview: true }),
});
if (!requestRes.ok) {
@@ -87,6 +94,7 @@ export function createFilePreviewModal({
const res = await fetch(downloadUrl, {
method: "GET",
credentials: "include",
signal: abortController.signal,
});
if (!res.ok) {
@@ -99,22 +107,37 @@ export function createFilePreviewModal({
const contentLength = Number(res.headers.get("Content-Length") || 0);
if (contentLength > PREVIEW_MAX_BYTES) {
await res.body?.cancel("preview size limit exceeded");
if (currentPreviewPath !== path) return;
if (previewContent) previewContent.innerHTML = `<div class="text-slate-400 text-sm text-center p-6"><i class="fa-solid fa-file mr-2"></i>File too large to preview (${escapeHtml(formatBytes(contentLength))})</div>`;
if (previewStatusEl) previewStatusEl.textContent = "";
return;
}
const arrayBuffer = await res.arrayBuffer();
if (!res.body) throw new Error("Preview response did not include a body");
const reader = res.body.getReader();
const chunks = [];
let received = 0;
while (true) {
const { done, value } = await reader.read();
if (done) break;
if (!value) continue;
received += value.byteLength;
if (received > PREVIEW_MAX_BYTES) {
await reader.cancel("preview size limit exceeded");
throw new Error(`File too large to preview (${formatBytes(received)})`);
}
chunks.push(value);
}
const arrayBuffer = new Uint8Array(received);
let chunkOffset = 0;
for (const chunk of chunks) {
arrayBuffer.set(chunk, chunkOffset);
chunkOffset += chunk.byteLength;
}
if (currentPreviewPath !== path) return;
if (arrayBuffer.byteLength > PREVIEW_MAX_BYTES) {
if (previewContent) previewContent.innerHTML = `<div class="text-slate-400 text-sm text-center p-6"><i class="fa-solid fa-file mr-2"></i>File too large to preview (${escapeHtml(formatBytes(arrayBuffer.byteLength))})</div>`;
if (previewStatusEl) previewStatusEl.textContent = "";
return;
}
if (currentPreviewBlobUrl) {
URL.revokeObjectURL(currentPreviewBlobUrl);
currentPreviewBlobUrl = null;
@@ -140,9 +163,12 @@ export function createFilePreviewModal({
if (previewStatusEl) previewStatusEl.textContent = "";
} catch (err) {
if (err?.name === "AbortError" || abortController.signal.aborted) return;
if (currentPreviewPath !== path) return;
if (previewContent) previewContent.innerHTML = `<div class="text-red-400 text-sm text-center p-6"><i class="fa-solid fa-exclamation-triangle mr-2"></i>${escapeHtml(err.message || "Failed to load preview")}</div>`;
if (previewStatusEl) previewStatusEl.textContent = "";
} finally {
if (currentPreviewAbortController === abortController) currentPreviewAbortController = null;
}
}