创建IPv6检测的前缀 #33

	name: 创建IPv6检测的前缀

	on:
	workflow_dispatch:
	schedule:
	- cron: '0 0 * * 0'

	jobs:
	fetch-ipv6-prefixes:
	runs-on: ubuntu-latest
	steps:
	- name: 检出代码
	uses: actions/checkout@v3
	with:
	token: ${{ secrets.GITHUB_TOKEN }}

	- name: 获取并处理多个ASN的IPv6前缀
	run: \|
	mkdir -p bk/prefix/
	for asn in AS4809 AS4134 AS9929 AS4837 AS58807 AS9808 AS58453 AS23764; do
	echo "处理 $asn..."
	curl -s -A "Mozilla/5.0" \
	"https://bgp.he.net/$asn" > "${asn}.html"
	grep -oE '[0-9a-f:]+::/[0-9]+' "${asn}.html" \| sort -u > tmp_prefixes.txt
	{
	while read prefix; do
	ip_part=$(echo "$prefix" \| cut -d/ -f1)
	prefix_len=$(echo "$prefix" \| cut -d/ -f2)
	keep_segments=$((prefix_len / 16))
	segments=$(echo "$ip_part" \| tr ':' '\n' \| grep -v '^$')
	kept=$(echo "$segments" \| head -n "$keep_segments" \| tr '\n' ':' \| sed 's/:$//')
	echo "$kept"
	done < tmp_prefixes.txt
	} \| sort -u > "bk/prefix/${asn,,}.txt"
	rm -f "${asn}.html" tmp_prefixes.txt
	done

	- name: 提交更新到仓库
	run: \|
	git config user.name "github-actions[bot]"
	git config user.email "github-actions[bot]@users.noreply.github.com"
	git add bk/prefix/*.txt
	if git diff --cached --quiet; then
	echo "无变更，跳过提交。"
	else
	git commit -m "chore: 更新多个 ASN 的 IPv6 前缀"
	git push
	fi

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