testsAndMisc/linux_configuration/scripts/periodic_background/hosts/generate_hosts_file.sh
Krzysztof kuhy Rudnicki dcbfbc3ca4 feat(phone): automate BL-9000 fresh-phone recovery after factory reset
- batch3_bloatware_uninstall.sh: rewrite with 42 confirmed BL-9000 packages
  (39 Blackview OEM + Chrome, YouTube, YouTube Music); batch removal without
  reboots; --list dry-run; ADB_SERIAL/PHONE_IP support
- deploy.sh: ensure_magisk_hosts_module() auto-creates Magisk Systemless Hosts
  module dir+module.prop and reboots if absent/disabled — no manual Magisk UI
  interaction required
- deploy.sh: fetch_home_coords_from_phone() enables location and captures GPS
  fix; falls back to stub coords with clear next-step instruction on failure
- deploy.sh: --capture-coords action for post-WiFi GPS capture + daemon restart
- config.sh: add com.kuhy.workout_app and com.shazam.android to WHITELIST
- hosts scripts: broaden Facebook/Messenger unblocking to all subdomains
  (fbcdn.net, facebook.net, m.facebook.com)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-31 16:22:49 +02:00

114 lines
4.0 KiB
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Executable File

#!/bin/bash
# ============================================================
# generate_hosts_file.sh
#
# Generates a full hosts file (StevenBlack base + custom entries
# from install.sh) to a path of your choice, without touching the
# live /etc/hosts or running any privileged operations.
#
# Used by:
# - phone_focus_mode/deploy.sh (to create a canonical hosts
# file to push to a rooted Android device).
#
# Keeps the custom-entries heredoc in install.sh as the single
# source of truth: this script extracts it via the same sed
# pattern install.sh uses for its protection check.
#
# Usage:
# generate_hosts_file.sh <output_path>
# generate_hosts_file.sh - # stdout
# HOSTS_CACHE=/tmp/sb.cache generate_hosts_file.sh out
# ============================================================
set -euo pipefail
OUT="${1:-}"
if [[ -z $OUT ]]; then
echo "Usage: $0 <output_path>|-" >&2
exit 1
fi
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
INSTALL_SH="$SCRIPT_DIR/install.sh"
URL="https://raw.githubusercontent.com/StevenBlack/hosts/master/alternates/fakenews-gambling-porn-social/hosts"
# Default cache location: same as install.sh so both reuse the same file.
CACHE="${HOSTS_CACHE:-/etc/hosts.stevenblack}"
# Fall back to a per-user cache if /etc/hosts.stevenblack is not readable,
# or if we don't have write access (install.sh runs as root; this script
# may not). Avoid interactive `mv` prompts by checking writability up front.
if [[ ! -r $CACHE ]] || [[ -e $CACHE && ! -w $CACHE ]] || [[ ! -w $(dirname "$CACHE") ]]; then
CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/phone_focus_mode/hosts.stevenblack"
mkdir -p "$(dirname "$CACHE")"
fi
if [[ ! -f $INSTALL_SH ]]; then
echo "ERROR: cannot find install.sh at $INSTALL_SH" >&2
exit 1
fi
# ---- Fetch or reuse cache ----
need_download=0
if [[ ! -f $CACHE ]]; then
need_download=1
else
# Refresh if older than 7 days
if [[ -n $(find "$CACHE" -mtime +7 -print 2>/dev/null) ]]; then
need_download=1
fi
fi
if [[ $need_download -eq 1 ]]; then
tmp_dl="$(mktemp)"
if curl -LfsS --max-time 30 "$URL" -o "$tmp_dl"; then
mv -f "$tmp_dl" "$CACHE"
else
rm -f "$tmp_dl"
if [[ ! -f $CACHE ]]; then
echo "ERROR: failed to download $URL and no cache present" >&2
exit 1
fi
echo "WARNING: download failed, using stale cache at $CACHE" >&2
fi
fi
# ---- Build output ----
TMP="$(mktemp)"
trap 'rm -f "$TMP"' EXIT
cp "$CACHE" "$TMP"
# Apply the same unblocks install.sh does so generated file matches PC /etc/hosts.
sed -i 's/^0\.0\.0\.0 4chan\.com/#0.0.0.0 4chan.com/' "$TMP"
sed -i 's/^0\.0\.0\.0 www\.4chan\.com/#0.0.0.0 www.4chan.com/' "$TMP"
sed -i 's/^0\.0\.0\.0 4chan\.org/#0.0.0.0 4chan.org/' "$TMP"
sed -i 's/^0\.0\.0\.0 boards\.4chan\.org/#0.0.0.0 boards.4chan.org/' "$TMP"
sed -i 's/^0\.0\.0\.0 sys\.4chan\.org/#0.0.0.0 sys.4chan.org/' "$TMP"
sed -i 's/^0\.0\.0\.0 www\.4chan\.org/#0.0.0.0 www.4chan.org/' "$TMP"
sed -i -E 's/^(0\.0\.0\.0[[:space:]]+[a-zA-Z0-9._-]*\.?facebook\.com)/#\1/' "$TMP"
sed -i -E 's/^(0\.0\.0\.0[[:space:]]+[a-zA-Z0-9._-]*\.?messenger\.com)/#\1/' "$TMP"
sed -i -E 's/^(0\.0\.0\.0[[:space:]]+[a-zA-Z0-9._-]*\.?fbcdn\.net)/#\1/' "$TMP"
sed -i -E 's/^(0\.0\.0\.0[[:space:]]+[a-zA-Z0-9._-]*\.?facebook\.net)/#\1/' "$TMP"
sed -i 's/^0\.0\.0\.0 delio\.com.pl/#0.0.0.0 delio.com.pl/' "$TMP"
sed -i -E 's/^(0\.0\.0\.0[[:space:]]+[a-zA-Z0-9._-]*\.?linkedin\.com)/#\1/' "$TMP"
sed -i -E 's/^(0\.0\.0\.0[[:space:]]+[a-zA-Z0-9._-]*\.?licdn\.com)/#\1/' "$TMP"
sed -i -E 's/^(0\.0\.0\.0[[:space:]]+[a-zA-Z0-9._-]*\.?loverslab\.com)/#\1/' "$TMP"
# Extract the custom-entries block from install.sh (between the
# "# Custom blocking entries" comment and the heredoc EOF marker).
# This is the same pattern install.sh uses for its protection check,
# so the two files stay in sync automatically.
{
echo ""
sed -n '/^# Custom blocking entries$/,/^EOF$/p' "$INSTALL_SH" |
sed '$d' # drop the trailing EOF line
} >>"$TMP"
if [[ $OUT == "-" ]]; then
cat "$TMP"
else
mkdir -p "$(dirname "$OUT")"
cp "$TMP" "$OUT"
chmod 644 "$OUT" 2>/dev/null || true
fi