Adds util/XmrigUpdater: a background-thread service (mirrors util/Bootstrap) that pulls
the latest DRG-XMRig release from the project's Gitea, verifies it, and installs the miner
binary into the daemon directory. Service layer only; the mining-tab UI hook comes next.
Flow: GET /api/v1/repos/DragonX/drg-xmrig/releases/latest -> pick the asset matching this
platform (…-linux-x64.zip / …-win-x64.zip; no macOS build -> graceful "unavailable") ->
download (libcurl, TLS verified) -> verify the archive SHA-256 -> extract with miniz,
flattening the versioned subdir the archive nests the binary in -> verify the extracted
binary's SHA-256 in memory before writing it -> atomic install (+chmod +x on POSIX). On
Windows also extracts WinRing0x64.sys; config.json/README.md are skipped.
Security (download-and-execute): TLS is verified, and BOTH the archive and the inner binary
are checked against the SHA-256 checksums published in the release body (parsed as
"<hex> <name>" lines) — install is refused on a missing or mismatched checksum.
Split into a pure core (xmrig_updater_core.cpp: release parse, asset/platform match, checksum
parse, SHA-256) and the curl/miniz worker (xmrig_updater.cpp). The core is unit-tested against
a real captured release fixture (tests/fixtures/xmrig/release_latest.json); an env-gated
(DRAGONX_TEST_NETWORK=1) integration test exercises the worker live and was verified end-to-end
on linux-x64 (inner binary SHA-256 matches the published value). Both variants build; suite passes.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
DanS
946958b591