Merge remote-tracking branch 'origin/develop' into HEAD

1 files changed, 136 insertions, 0 deletions

diff --git a/lib/leap_cli/commands/user.rb b/lib/leap_cli/commands/user.rb
new file mode 100644
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+++ b/lib/leap_cli/commands/user.rb
@@ -0,0 +1,136 @@
+
+#
+# perhaps we want to verify that the key files are actually the key files we expect.
+# we could use 'file' for this:
+#
+# > file ~/.gnupg/00440025.asc
+# ~/.gnupg/00440025.asc: PGP public key block
+#
+# > file ~/.ssh/id_rsa.pub
+# ~/.ssh/id_rsa.pub: OpenSSH RSA public key
+#
+
+module LeapCli
+  module Commands
+
+    desc 'Adds a new trusted sysadmin by adding public keys to the "users" directory.'
+    arg_name 'USERNAME' #, :optional => false, :multiple => false
+    command :'add-user' do |c|
+
+      c.switch 'self', :desc => 'Add yourself as a trusted sysadin by choosing among the public keys available for the current user.', :negatable => false
+      c.flag 'ssh-pub-key', :desc => 'SSH public key file for this new user'
+      c.flag 'pgp-pub-key', :desc => 'OpenPGP public key file for this new user'
+
+      c.action do |global_options,options,args|
+        username = args.first
+        if !username.any?
+          if options[:self]
+            username ||= `whoami`.strip
+          else
+            help! "Either USERNAME argument or --self flag is required."
+          end
+        end
+        if Leap::Platform.reserved_usernames.include? username
+          bail! %(The username "#{username}" is reserved. Sorry, pick another.)
+        end
+
+        ssh_pub_key = nil
+        pgp_pub_key = nil
+
+        if options['ssh-pub-key']
+          ssh_pub_key = read_file!(options['ssh-pub-key'])
+        end
+        if options['pgp-pub-key']
+          pgp_pub_key = read_file!(options['pgp-pub-key'])
+        end
+
+        if options[:self]
+          ssh_pub_key ||= pick_ssh_key.to_s
+          pgp_pub_key ||= pick_pgp_key
+        end
+
+        assert!(ssh_pub_key, 'Sorry, could not find SSH public key.')
+
+        if ssh_pub_key
+          write_file!([:user_ssh, username], ssh_pub_key)
+        end
+        if pgp_pub_key
+          write_file!([:user_pgp, username], pgp_pub_key)
+        end
+
+        update_authorized_keys
+      end
+    end
+
+    #
+    # let the the user choose among the ssh public keys that we encounter, or just pick the key if there is only one.
+    #
+    def pick_ssh_key
+      ssh_keys = []
+      Dir.glob("#{ENV['HOME']}/.ssh/*.pub").each do |keyfile|
+        ssh_keys << SshKey.load(keyfile)
+      end
+
+      if `which ssh-add`.strip.any?
+        `ssh-add -L 2> /dev/null`.split("\n").compact.each do |line|
+          key = SshKey.load(line)
+          if key
+            key.comment = 'ssh-agent'
+            ssh_keys << key unless ssh_keys.include?(key)
+          end
+        end
+      end
+      ssh_keys.compact!
+
+      assert! ssh_keys.any?, 'Sorry, could not find any SSH public key for you. Have you run ssh-keygen?'
+
+      if ssh_keys.length > 1
+        key_index = numbered_choice_menu('Choose your SSH public key', ssh_keys.collect(&:summary)) do |line, i|
+          say("#{i+1}. #{line}")
+        end
+      else
+        key_index = 0
+      end
+
+      return ssh_keys[key_index]
+    end
+
+    #
+    # let the the user choose among the gpg public keys that we encounter, or just pick the key if there is only one.
+    #
+    def pick_pgp_key
+      begin
+        require 'gpgme'
+      rescue LoadError
+        log "Skipping OpenPGP setup because gpgme is not installed."
+        return
+      end
+
+      secret_keys = GPGME::Key.find(:secret)
+      if secret_keys.empty?
+        log "Skipping OpenPGP setup because I could not find any OpenPGP keys for you"
+        return nil
+      end
+
+      secret_keys.select!{|key| !key.expired}
+
+      if secret_keys.length > 1
+        key_index = numbered_choice_menu('Choose your OpenPGP public key', secret_keys) do |key, i|
+          key_info = key.to_s.split("\n")[0..1].map{|line| line.sub(/^\s*(sec|uid)\s*/,'')}.join(' -- ')
+          say("#{i+1}. #{key_info}")
+        end
+      else
+        key_index = 0
+      end
+
+      key_id = secret_keys[key_index].sha
+
+      # can't use this, it includes signatures:
+      #puts GPGME::Key.export(key_id, :armor => true, :export_options => :export_minimal)
+
+      # export with signatures removed:
+      return `gpg --armor --export-options export-minimal --export #{key_id}`.strip
+    end
+
+  end
+end
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