From df840dca0bcbbb7c2c814f56f72d4785665e6191 Mon Sep 17 00:00:00 2001
From: Michael Orlitzky <michael@orlitzky.com>
Date: Mon, 18 Mar 2013 18:15:51 -0400
Subject: [PATCH] Add AgenDAV plugin, totally untested.

---
 lib/mailshears/plugins/agendav.rb | 116 ++++++++++++++++++++++++++++++
 mailshears.example.conf.yml       |  10 ++-
 2 files changed, 125 insertions(+), 1 deletion(-)
 create mode 100644 lib/mailshears/plugins/agendav.rb

diff --git a/lib/mailshears/plugins/agendav.rb b/lib/mailshears/plugins/agendav.rb
new file mode 100644
index 0000000..6ea60a2
--- /dev/null
+++ b/lib/mailshears/plugins/agendav.rb
@@ -0,0 +1,116 @@
+require 'pg'
+
+class AgendavDb
+
+  include Plugin
+
+  def initialize()
+    cfg = Configuration.new()
+    @db_host = cfg.agendav_dbhost
+    @db_port = cfg.agendav_dbport
+    @db_opts = cfg.agendav_dbopts
+    @db_tty  = cfg.agendav_dbtty
+    @db_name = cfg.agendav_dbname
+    @db_user = cfg.agendav_dbuser
+    @db_pass = cfg.agendav_dbpass
+  end
+
+
+  def describe_domain(domain)
+    # AgenDAV doesn't have a concept of domains.
+    return 'N/A'
+  end
+
+  def describe_account(account)
+    if user_exists(account)
+      return "Username: #{account}"
+    else
+      return 'User not found'
+    end
+  end
+
+  def delete_domain(domain)
+    # AgenDAV doesn't have a concept of domains.
+  end
+
+  def delete_account(account)
+    # Delete the given username and any records in other tables
+    # belonging to it.
+
+    sql_queries = ['DELETE FROM prefs WHERE username = $1::int;']
+    sql_queries << 'DELETE FROM shared WHERE user_from = $1::int;'
+
+    begin
+      connection = PGconn.connect(@db_host,
+                                  @db_port,
+                                  @db_opts,
+                                  @db_tty,
+                                  @db_name,
+                                  @db_user,
+                                  @db_pass)
+
+      sql_queries.each do |sql_query|
+        connection.query(sql_query, [account])
+      end
+
+      connection.close()
+
+    rescue PGError => e
+      # Pretend like we're database-agnostic in case we ever are.
+      raise DatabaseError.new(e)
+    end
+
+  end
+
+
+  def get_leftover_domains(db_domains)
+    # AgenDAV doesn't have a concept of domains.
+    return []
+  end
+
+
+  def get_leftover_accounts(db_accounts)
+    # Get a list of all users who have logged in to AgenDAV.
+    ad_accounts = self.get_agendav_usernames()
+    return ad_accounts - db_accounts
+  end
+
+
+  protected;
+
+  def user_exists(account)
+    ad_users = get_agendav_usernames()
+    return ad_users.include?(account)
+  end
+
+  def get_agendav_usernames()
+    usernames = []
+
+    # Just assume PostgreSQL for now.
+    begin
+      connection = PGconn.connect(@db_host,
+                                  @db_port,
+                                  @db_opts,
+                                  @db_tty,
+                                  @db_name,
+                                  @db_user,
+                                  @db_pass)
+
+      sql_query  = '(SELECT username FROM prefs)'
+      sql_query += 'UNION'
+      sql_query += '(SELECT user_from FROM shared);'
+
+      connection.query(sql_query) do |result|
+        usernames = result.field_values('username')
+      end
+
+      connection.close()
+    rescue PGError => e
+      # Pretend like we're database-agnostic in case we ever are.
+      raise DatabaseError.new(e)
+    end
+
+    return usernames
+  end
+
+end
diff --git a/mailshears.example.conf.yml b/mailshears.example.conf.yml
index 35f8b05..3701cb5 100644
--- a/mailshears.example.conf.yml
+++ b/mailshears.example.conf.yml
@@ -8,7 +8,7 @@ dbuser: postgres
 dbpass:
 dbname: postfix
 
-plugins: [dovecot_mailstore, roundcube_db]
+plugins: [dovecot_mailstore, roundcube_db, agendav]
 
 mail_root: /var/spool/mail/vhosts
 
@@ -19,3 +19,11 @@ roundcube_dbtty:
 roundcube_dbuser: postgres
 roundcube_dbpass:
 roundcube_dbname: roundcube
+
+agendav_dbhost: localhost
+agendav_dbport: 5432
+agendav_dbopts:
+agendav_dbtty:
+agendav_dbuser: postgres
+agendav_dbpass:
+agendav_dbname: agendav
-- 
2.43.2