From 3e082dcdcd18a5ed49f18f6b0c822acde1f6187d Mon Sep 17 00:00:00 2001
From: Luke Bratch <luke@bratch.co.uk>
Date: Tue, 22 Jan 2019 23:10:10 +0000
Subject: Initial commit - works on some TLDs but more to add, lots to do.

---
 domainexpiry.sh | 118 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100755 domainexpiry.sh

diff --git a/domainexpiry.sh b/domainexpiry.sh
new file mode 100755
index 0000000..d5fa29c
--- /dev/null
+++ b/domainexpiry.sh
@@ -0,0 +1,118 @@
+#!/bin/bash
+set -euo pipefail
+
+# ==== Variables ====
+# Output warning if fewer than this number of seconds until expiry
+WARNSECONDS=1209600 # Two weeks
+# File containing a newline separated list of host:port combinations to be checked
+DOMAINS="domains.txt"
+# ==== Variables ====
+
+# === Not variables ===
+SUPPORTEDTLDS=(.co.uk .com .eu .info .je .net .org .ovh .uk)
+# === Not variables ===
+
+
+#for TLD in "${SUPPORTEDTLDS[@]}" ; do
+#  echo "DEBUG: Supported TLD: $TLD."
+#done
+
+# Loop through all host:port combinations
+while read -r DOMAIN ; do
+
+  echo "DEBUG: DOMAIN: $DOMAIN."
+
+  # Work out the TLD
+  TLD=""
+  DOTS=0
+  for TLDTEST in "${SUPPORTEDTLDS[@]}" ; do
+#    echo "DEBUG: Checking $DOMAIN against $TLDTEST."
+    if echo "$DOMAIN" | grep -q "$TLDTEST$" ; then
+#      echo "DEBUG: $DOMAIN may be a $TLDTEST domain..."
+      DOTSTEST=$(echo "$TLDTEST" | grep -o "\." | wc -l)
+#      echo "DEBUG: $TLDTEST has $DOTSTEST dots compared to the previous $DOTS."
+      if [ "$DOTSTEST" -gt "$DOTS" ] ; then
+#        echo "DEBUG: Yes, $TLDTEST is the current winner."
+        TLD="$TLDTEST"
+        DOTS="$DOTSTEST"
+      fi
+    fi
+  done
+
+  if [ "$TLD" == "" ] ; then
+    echo "ERROR: Unknown TLD for $DOMAIN, ignoring."
+    continue
+  else
+    echo "DEBUG: $DOMAIN is a $TLD domain."
+  fi
+
+  # Get the WHOIS data
+  WHOIS="$(whois $DOMAIN)"
+
+  # Do the appropriate WHOIS grepping magic based on what the TLD was
+  case "$TLD" in
+    .co.uk)
+#      echo "DEBUG: Doing the .co.uk domain stuff"
+      DATESTR=$(echo "$WHOIS" | grep -E '^\s*Expiry date:' | sed -r 's/^\s*Expiry date:\s*//')
+#      echo "DEBUG: DATESTR: $DATESTR"
+      EXPIRY=$(date --date "$DATESTR" +%s)
+#      echo "DEBUG: $DOMAIN expires on $EXPIRY aka "$(date --date @"$EXPIRY")"."
+      ;;
+    .je)
+#      echo "DEBUG: Doing the .je domain stuff"
+      # .je WHOIS returns two dates, so pick the earlier one just in case
+      # Strip out st/nd/rd/th (e.g. 30th -> 30) for parsing with `date`
+      DATESTR=$(echo "$WHOIS" | grep -E '^\s*Registry fee due on' | sed -r 's/\s*Registry fee due on //; s/ each year//; s/(st |nd |rd |th )/ /')
+      echo "DEBUG: DATESTR: $DATESTR"
+      # Same again, plus the original registration year (e.g. 30th January 2011 -> 30 January)
+      DATESTR2=$(echo "$WHOIS" | grep -E "^\s*Registered on" | sed -r 's/\s*Registered on //; s/ [0-9]+//; s/(st |nd |rd |th )/ /')
+      echo "DEBUG: DATESTR2: $DATESTR2"
+      # These date only strings will be assumed to be this year by `date`
+      EXPIRY=$(date --date "$DATESTR" +%s)
+      EXPIRY2=$(date --date "$DATESTR2" +%s)
+      # Pick whichever is lower (i.e. sooner)
+      if [ "$EXPIRY" -gt "$EXPIRY2" ] ; then
+        EXPIRY="$EXPIRY2"
+        # Keep the original chosen DATESTR for use later
+        DATESTR="$DATESTR2"
+      fi
+      # If this date is in the past, assume it actually expires next year
+      NOW=$(date +%s)
+      if [ "$EXPIRY" -lt "$NOW" ] ; then
+        YEAR=$(date +%Y)
+        YEAR=$((YEAR+1))
+        EXPIRY=$(date --date "$DATESTR $YEAR" +%s)
+#        echo "DEBUG: Chosen DATESTR: $DATESTR $YEAR"
+#      else
+#        echo "DEBUG: Chosen DATESTR: $DATESTR"
+      fi
+#      echo "DEBUG: $DOMAIN expires on $EXPIRY aka "$(date --date @"$EXPIRY")"."
+      ;;
+    .uk)
+      echo "DEBUG: Doing the .uk domain stuff"
+      DATESTR=$(echo "$WHOIS" | grep -E '^\s*Expiry date:' | sed -r 's/^\s*Expiry date:\s*//')
+#      echo "DEBUG: DATESTR: $DATESTR"
+      EXPIRY=$(date --date "$DATESTR" +%s)
+#      echo "DEBUG: $DOMAIN expires on $EXPIRY aka "$(date --date @"$EXPIRY")"."
+      ;;
+    *)
+      echo "ERROR: Unknown TLD for $DOMAIN, I have no idea how we got here, exiting."
+      exit
+      ;;
+  esac
+
+  NOW=$(date +%s)
+#  echo "DEBUG: NOW: $NOW."
+
+  # Number of seconds left
+  DIFFERENCE=$(("$EXPIRY" - "$NOW"))
+#  echo "DEBUG: DIFFERENCE: $DIFFERENCE."
+
+  # Warn if less than WARNSECONDS less
+  if [ "$DIFFERENCE" -lt "$WARNSECONDS" ] ; then
+    echo "Warning!  The domain $DOMAIN expires in $DIFFERENCE seconds (~$((DIFFERENCE / 60 / 60 / 24)) days)."
+  else
+    echo "DEBUG: The domain $DOMAIN expires in $DIFFERENCE seconds (~$((DIFFERENCE / 60 / 60 / 24)) days)."
+  fi
+
+done < "$DOMAINS"
-- 
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