Two independent signals feed one panel, per docs/05 §3:
- capture/media.ts (background): webRequest-based, recognizes .m3u8/.mpd
URLs and the HLS/DASH content types, deduped per (tab, url) so an
HLS live-refresh doesn't re-fire. media-bridge.ts relays a hit to the
tab's content script over runtime.sendMessage, and separately answers
the content script's media.listVariants/media.addVariant calls by
forwarding them to the background page's transport.
- content/media-observer.ts: watches the page's own <video> elements
(present now, added later, or with src changed) for the same
extension signal, independent of what the network sniffer saw.
Either firing opens content/video-panel.ts's "Download this video ▾"
panel (built with createElement, matching the popup's innerHTML-free
approach), which lists variants from media.listVariants and greys out
any variant.drm or a wholly drmProtected manifest with "Protected
content" rather than attempting it. The extension still never parses a
manifest itself — that stays in the daemon, one language, one place.
content/index.ts is the manifest-registered entry (content_scripts in
manifest.json, added in the previous commit); build.mjs builds it as an
IIFE rather than ESM, since a manifest content script has no "type":
"module" declaration and an emitted top-level export would be a syntax
error there. tsconfig.json adds DOM.Iterable for NodeList iteration.
docs/05-extension-spec.md gets a short addendum (§8) documenting the
popup/options bridge and this media-detection split, since neither was
in the original design write-up.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Ed8KEmAW48v4YHdxLtqsMB
Downloads that never reach the header hook (form POST results, service-worker
responses, clicks Firefox routes straight to its downloader) surface here.
If one looks like the daemon's, offer it FIRST and only cancel + erase
Firefox's copy on {action:"take"} — a failed or slow offer can never leave
the user with nothing. blob:/data: downloads are left to Firefox (the daemon
can't fetch a blob URL).
- offered-urls.ts: short-lived, bounded TTL set of URLs the header hook has
already offered; the safety net checks it (via wasOffered) so nothing is
double-handled. Hook gains an onOffered hook to populate it.
- background/index.ts: both paths share one offer(), getCookies, rules
mirror, and OfferedUrls instance.
13 new tests incl. fail-open (offer rejects -> 'error', ignore ->
'offer_declined', cancel() throwing after take still returns 'taken').
101 tests green; web-ext lint clean.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_012Y9RU58hD1BuwP82DySUHk
For a response shouldCapture() likes: gather cookies, offer to the daemon
under a hard 750 ms budget, and return {cancel:true} ONLY on an explicit
{action:"take"}. Every other outcome — shouldCapture says no, daemon down /
slow / erroring, cookies fail, anything throws — resolves to {} and Firefox
downloads normally.
Fail-open tests written first (tests/capture/hook.test.ts): offer() rejects,
offer() never settles (resolves within budget), timeout-shaped rejection,
getRules() throws, malformed details. Plus the happy paths and a check that
the capture.offer payload is well-formed from details + stash + headers.
background/index.ts: wire the stash + hook onto browser.webRequest, mirror
capture rules via capture.getRules on connect and on a capture.* settings
change; DEFAULT_CAPTURE_RULES (enabled:false) until the first mirror lands.
84 tests green; web-ext lint clean.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_012Y9RU58hD1BuwP82DySUHk
The header-hook manager's core call: capture when any positive signal holds
and none of the vetoes do (docs/05 §2). Vetoes are absolute and checked
first — a monitored .zip on an excluded host is not captured.
Decision table written first (tests/capture/rules.test.ts, 22 rows); every
branch here exists to satisfy one. Covers the M1 DoD set: attachment,
monitored extension, monitored MIME, size threshold, excluded host (exact +
wildcard), HTML navigation, blob:/data: origin, bypass modifier, streaming
media (HLS MIME and resourceType 'media'), a page-issued range request, plus
non-GET, redirect status, sub-threshold, and large-but-renderable.
Pure function of (candidate, rules); rules are the daemon's, mirrored via
capture.getRules, so the decision never drifts from daemon policy.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_012Y9RU58hD1BuwP82DySUHk
onHeadersReceived (where shouldCapture runs) doesn't carry the headers the
browser actually sent; signed-URL and referrer-gated CDNs need them. Stash
from onBeforeSendHeaders keyed by requestId, read back at capture time.
This map sees every request, so it is bounded both ways — oldest-out past a
size cap (default 2048) and a 5-minute TTL, swept on a 60 s timer and on read
— and attach() clears an entry the moment its request completes or errors.
normalizeHeaders(): Array<{name,value}> -> lower-cased map, repeats joined
with ", ". 13 tests: eviction order, redirect re-put refresh, TTL expiry,
sweep, and the onBeforeSendHeaders/onCompleted/onErrorOccurred wiring.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_012Y9RU58hD1BuwP82DySUHk
samiandClaude Sonnet 5