support pulling real ip from proxy

updateCFIps.sh

@@ -0,0 +1,56 @@
+rm CFIPs.txt
+curl https://www.cloudflare.com/ips-v4 >>CFIPs.txt
+echo "" >>CFIPs.txt
+curl https://www.cloudflare.com/ips-v6 >>CFIPs.txt
+echo "" >>CFIPs.txt
+
+OUTPUT_GO_CONFIG="./ips/ips.go"
+OUTPUT_GO_CONFIG_OLD="./ips-temp.go"
+
+mv $OUTPUT_GO_CONFIG $OUTPUT_GO_CONFIG_OLD
+
+echo "// Package ips contains a list of current cloud flare IP ranges" >>$OUTPUT_GO_CONFIG
+echo "package ips" >>$OUTPUT_GO_CONFIG
+echo "" >>$OUTPUT_GO_CONFIG
+echo "// CFIPs is the CloudFlare Server IP list (this is checked on build)." >>$OUTPUT_GO_CONFIG
+echo "func CFIPs() []string {" >>$OUTPUT_GO_CONFIG
+echo "	return []string{" >>$OUTPUT_GO_CONFIG
+
+cat CFIPs.txt | while read line || [[ -n $line ]]; do
+  printf '%s\n' "CF IP: $line"
+  echo "		\"${line}\"," >>$OUTPUT_GO_CONFIG
+done
+
+echo "	}" >>$OUTPUT_GO_CONFIG
+echo "}" >>$OUTPUT_GO_CONFIG
+
+rm CFIPs.txt
+
+if [ "${1}" == "pc" ]; then
+  echo "Run on pre-commit hook."
+  if cmp --silent -- "$OUTPUT_GO_CONFIG" "$OUTPUT_GO_CONFIG_OLD"; then
+    echo "No changes, nothing to worry about"
+  else
+    echo "Cloud flare have changed their IPs, adding changes to commit."
+    touch ./.commit
+  fi
+
+  rm $OUTPUT_GO_CONFIG_OLD
+  exit
+fi
+
+if [ "${1}" != "ci" ]; then
+  echo "Not run on CI, exit ok"
+  rm $OUTPUT_GO_CONFIG_OLD
+  exit
+fi
+
+if cmp --silent -- "$OUTPUT_GO_CONFIG" "$OUTPUT_GO_CONFIG_OLD"; then
+  echo "No changes to Cloud Flare IP list"
+  rm $OUTPUT_GO_CONFIG_OLD
+else
+  echo "Cloud flare have changed their IPs, re-run updateCFIps.sh and commit the changes!"
+  rm $OUTPUT_GO_CONFIG_OLD
+  exit 6
+fi
+