Claude Code Web routes github.com through a git-only proxy, so the Gradle
wrapper's distributionUrl (services.gradle.org, which 307-redirects to a
github.com release asset) can't bootstrap — it 403s even at Full network
access, and `./gradlew` fails before running any task.
Seed the pinned distribution in the existing web-only SessionStart hook,
reusing the same idempotent curl-download pattern already used there for the
Android SDK and Kotlin/Native deps: skip if already installed, else fetch
Gradle's OFFICIAL sha256 (served from services.gradle.org, reachable here),
download the zip from a mirror, and verify before extracting so a tampered or
wrong mirror file is rejected and never executed. The wrapper cache dir is
derived as base36(md5(distributionUrl)) so it survives version bumps.
Also pin distributionSha256Sum in gradle-wrapper.properties as defense in
depth: Gradle then verifies any distribution it installs (mirror-seeded, CI,
or local) against the known-good hash.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A7bocRTSPyXwz6zVMzDbKR
Claude
Vitor Pamplona
David Kaspar