mirror of
https://github.com/cunnie/sslip.io.git
synced 2025-10-06 08:06:53 +08:00
sslip.io will work for any domain
This commit is contained in:
Brian Cunnie
@@ -16,16 +16,26 @@ pdns_conf: |
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pipe-second-command=/var/vcap/jobs/pdns/bin/pipe /var/vcap/jobs/pdns/etc/pipe.conf
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pdns_pipe: |
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#!/usr/bin/env bash
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#
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# Originally written by Sam Stephenson for xip.io
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set -e
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shopt -s nocasematch
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# Configuration
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#
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# Increment this timestamp when the contents of the file change.
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XIP_TIMESTAMP="2016102201"
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XIP_TIMESTAMP="2016102202"
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# The top-level domain for which the name server is authoritative.
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# CHANGEME: change "sslip.io" to your domain
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XIP_DOMAIN="sslip.io"
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# How long responses should be cached, in seconds.
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XIP_TTL=300
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# SOA record
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XIP_SOA="briancunnie.gmail.com ns-he.nono.io $XIP_TIMESTAMP $XIP_TTL $XIP_TTL $XIP_TTL $XIP_TTL"
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# The public IP addresses (e.g. for the web site) of the top-level domain.
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# `A` queries for the top-level domain will return this list of addresses.
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# CHANGEME: change this to your domain's webserver's address
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@@ -47,14 +57,7 @@ pdns_pipe: |
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# "10" "mx.zoho.com"
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# "20" "mx2.zoho.com"
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# )
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# How long responses should be cached, in seconds.
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XIP_TTL=300
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#
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# Configuration
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#
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XIP_MX_RECORDS=( )
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XIP_TTL=300
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if [ -a "$1" ]; then
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source "$1"
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@@ -105,46 +108,27 @@ pdns_pipe: |
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printf "[xip-pdns:$$] %s\n" "$@" >&2
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}
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#
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# xip.io domain helpers
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#
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XIP_DOMAIN_PATTERN="(^|\.)${XIP_DOMAIN//./\.}\$"
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NS_SUBDOMAIN_PATTERN="^ns-([0-9]+)\$"
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IP_SUBDOMAIN_PATTERN="(^|\.)(((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))\$"
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DASHED_IP_SUBDOMAIN_PATTERN="(^|-|\.)(((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)-){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))\$"
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BASE36_SUBDOMAIN_PATTERN="(^|\.)([a-z0-9]{1,7})\$"
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IP_PATTERN="(^|\.)(((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))"
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DASHED_IP_PATTERN="(^|-|\.)(((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)-){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))"
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qtype_is() {
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[ "$QTYPE" = "$1" ] || [ "$QTYPE" = "ANY" ]
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}
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qname_matches_domain() {
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[[ "$QNAME" =~ $XIP_DOMAIN_PATTERN ]]
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}
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qname_is_root_domain() {
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[ "$QNAME" = "$XIP_DOMAIN" ]
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}
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extract_subdomain_from_qname() {
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SUBDOMAIN="${QNAME:0:${#QNAME}-${#XIP_DOMAIN}}"
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SUBDOMAIN="${SUBDOMAIN%.}"
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}
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subdomain_is_ns() {
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[[ "$SUBDOMAIN" =~ $NS_SUBDOMAIN_PATTERN ]]
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}
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subdomain_is_ip() {
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[[ "$SUBDOMAIN" =~ $IP_SUBDOMAIN_PATTERN ]]
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[[ "$QNAME" =~ $IP_PATTERN ]]
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}
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subdomain_is_dashed_ip() {
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[[ "$SUBDOMAIN" =~ $DASHED_IP_SUBDOMAIN_PATTERN ]]
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}
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subdomain_is_base36() {
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[[ "$SUBDOMAIN" =~ $BASE36_SUBDOMAIN_PATTERN ]]
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[[ "$QNAME" =~ $DASHED_IP_PATTERN ]]
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}
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resolve_ns_subdomain() {
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@@ -153,23 +137,17 @@ pdns_pipe: |
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}
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resolve_ip_subdomain() {
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[[ "$SUBDOMAIN" =~ $IP_SUBDOMAIN_PATTERN ]] || true
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[[ "$QNAME" =~ $IP_PATTERN ]] || true
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echo "${BASH_REMATCH[2]}"
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}
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resolve_dashed_ip_subdomain() {
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[[ "$SUBDOMAIN" =~ $DASHED_IP_SUBDOMAIN_PATTERN ]] || true
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[[ "$QNAME" =~ $DASHED_IP_PATTERN ]] || true
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echo "${BASH_REMATCH[2]//-/.}"
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}
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resolve_base36_subdomain() {
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[[ "$SUBDOMAIN" =~ $BASE36_SUBDOMAIN_PATTERN ]] || true
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local ip=$(( 36#${BASH_REMATCH[2]} ))
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printf "%d.%d.%d.%d" $(( ip&0xFF )) $(( (ip>>8)&0xFF )) $(( (ip>>16)&0xFF )) $(( (ip>>24)&0xFF ))
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}
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answer_soa_query() {
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send_answer "SOA" "admin.$XIP_DOMAIN ns-1.$XIP_DOMAIN $XIP_TIMESTAMP $XIP_TTL $XIP_TTL $XIP_TTL $XIP_TTL"
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send_answer "SOA" "$XIP_SOA"
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}
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answer_ns_query() {
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@@ -203,6 +181,7 @@ pdns_pipe: |
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fi
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}
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#
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# PowerDNS pipe backend implementation
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#
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@@ -213,38 +192,20 @@ pdns_pipe: |
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while read_query; do
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log "Query: type=$TYPE qname=$QNAME qclass=$QCLASS qtype=$QTYPE id=$ID ip=$IP"
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if qname_matches_domain; then
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if qname_is_root_domain; then
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if qtype_is "SOA"; then
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answer_soa_query
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fi
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if qtype_is "NS"; then
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elif qtype_is "NS"; then
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answer_ns_query
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fi
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if qtype_is "A"; then
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answer_root_a_query
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fi
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if qtype_is "MX"; then
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elif qtype_is "MX"; then
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answer_mx_query
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fi
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elif qtype_is "A"; then
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extract_subdomain_from_qname
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if subdomain_is_ns; then
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answer_subdomain_a_query_for ns
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elif subdomain_is_dashed_ip; then
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if [ $QNAME == $XIP_DOMAIN ]; then
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answer_root_a_query
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else
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if subdomain_is_dashed_ip; then
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answer_subdomain_a_query_for dashed_ip
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elif subdomain_is_ip; then
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answer_subdomain_a_query_for ip
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elif subdomain_is_base36; then
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answer_subdomain_a_query_for base36
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fi
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fi
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fi
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