Add friend import-export

README.md

@@ -159,6 +159,7 @@ curl -6 -s https://nico.ungleich.cloud/rifkeys | gpg --import
 
 You can also use the included rif-importfriends.sh.
 
+
 ### Example: Updating your friends
 
 Now that you have imported the friends of your friends, they have
@@ -178,17 +179,37 @@ gpg -a --export RIF > /var/www/html/rifkeys
 
 Or use the included `rif-exportfriends.sh`
 
+### Example: Importing friends of all friends and exporting them
+
+From time to time you might want to checkup on which friends gained
+new friends and add them to your friend list. This is as easy as
+iterating over all your friends and importing their friends into your
+friends list. And because you are a good friend, you might want to
+export all friends again.
+
+To make things easy, the included a script `rif-friendimportexport.sh`
+automates this process.
+
+
 ### Example: Sending a message to a friend
 
-Simply use your mail program for that.
-And obviously enable signing & encrypting the email.
+You can probably just use your mail program for that - and you might
+even be able to send it IPv6 only!
+
+## Finding friends
+
+As real IPv6 friends are decentralised, there is no central registry
+of friends. Just startup the webserver on your machine, export your
+key(s) and ping your friend.
+
+With every friend that is added to your network, the reach grows in
+the chain of all friends of every friend!
+
+So just start in your small cycle and forward your friend URL to your
+friends!
 
 
-## To be added
+## About
 
-- advanced usage -> ipv6 email
-
-### CLI ideas
-
-- **rif prepare**: check webserver, keyring, etc.
-- **rif online**: check who is online
+Real IPv6 friend is a project launched by Nico Schottelius on 2019-09-10.
+If you want to become my friend, my friend URL is https://nico.ungleich.cloud.

rif-friendimportexport.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+# Nico Schottelius, 2019-09-10, Seoul
+
+tmp=$(mktemp)
+
+gpg --list-keys --with-colons | grep RIF | awk -F: '{ print $10 }' | sed 's/\\x3a/:/' | (
+    while read line
+    do
+        name=$(echo $line | sed 's/\(.*\)(.*/\1/')
+        url=$(echo $line | sed -e 's/.*(RIF //' -e 's/).*//')
+        keyurl=$url/rifkeys
+
+        echo "Getting friends from $name on $keyurl ..."
+        curl -6 -s "$keyurl" >> $tmp
+    done
+)
+
+
+gpg --import "$tmp"
+rm -f "$tmp"