mirror of
https://github.com/therealaleph/MasterHttpRelayVPN-RUST.git
synced 2026-05-19 08:04:39 +03:00
Shin (Former Aleph)
8d2f90b0a7
Users of the upstream Python port
(github.com/masterking32/MasterHttpRelayVPN) reported that YouTube
videos render fine through theirs while the Rust port stalls. Diff
against the Python source exposed two substantive gaps we were
missing:
1. SNI-rewrite list was much shorter than upstream. Added:
gvt1.com, gvt2.com — Google Video Transport CDN (YouTube
video chunks + Chrome auto-updates +
Play Store downloads)
doubleclick.net — ads
googlesyndication.com
googleadservices.com
google-analytics.com
googletagmanager.com
googletagservices.com
fonts.googleapis.com — already covered by the googleapis.com
suffix but mirrored explicitly for clarity
These are all on Google's GFE IP pool, so they route over the
existing SNI-rewrite tunnel (direct to `google_ip` with SNI
rewritten) instead of the quota-limited Apps Script relay.
2. No range-parallel download path. Apps Script's per-call latency
is ~flat (~1-2s regardless of payload), so a 10 MB single GET
takes ~10s round-trip; the player times out or stutters. Upstream
Python's `relay_parallel` probes with Range: bytes=0-262143, and
if the origin supports ranges, fetches the rest in parallel
256 KB chunks (up to 16 concurrent). Ported that logic as a new
`DomainFronter::relay_parallel_range` method, called from both
MITM-HTTPS and plain-HTTP handlers for GETs without a body. Rust
implementation uses `futures::stream::buffered` for ordered
bounded-concurrency fan-out; cache layer already skips Range
requests (added defensive check in relay() too).
The existing single-script fan-out (`parallel_relay` config) is
complementary — it races N script IDs for each individual chunk,
where the range-parallel path slices the overall download. Both are
active simultaneously when both are configured.
Helper functions for HTTP parsing (split_response,
parse_content_range_total, rewrite_206_to_200, assemble_full_200)
mirror the Python equivalents.
No behaviour change for non-GET requests; no cache-correctness
changes for GETs that don't return 206.