Convert DovecotMailstore to a plugin, and generalize the main mailshears script to...

[mailshears.git] / src / dovecot_mailstore.rb

diff --git a/src/dovecot_mailstore.rb b/src/dovecot_mailstore.rb
index a794032c246d3c171a33193ab56c1cc823429cec..ee12da905412a207f9e092b60507382fb84ab16d 100644 (file)
--- a/src/dovecot_mailstore.rb
+++ b/src/dovecot_mailstore.rb
@@ -1,26 +1,110 @@
+require 'src/errors'
 require 'src/filesystem'
 require 'src/mailstore'
 
 class DovecotMailstore < Mailstore
 
+  def initialize
+    @domain_root = Configuration::MAIL_ROOT
+  end
+
+  def describe_domain(domain)
+    return get_domain_path(domain)
+  end
+
+  def describe_account(account)
+    return get_account_path(account)
+  end
+
+  def delete_domain(domain)
+    domain_path = self.get_domain_path(domain)
+    FileUtils.rm_rf(domain_path)
+  end
+
+  def delete_account(account)
+    account_path = self.get_account_path(account)
+    FileUtils.rm_rf(account_path)
+  end
+
+  def get_leftover_domains(db_domains)
+    # Get the list of domains according to the filesystem.
+    fs_domains = self.get_domains_from_filesystem()
+
+    # Return the list of domains on the filesystem that aren't in the DB.
+    return (fs_domains - db_domains)
+  end
+
+  def get_leftover_accounts(db_accounts)
+    # Get the list of accounts according to the filesystem.
+    fs_domains = self.get_domains_from_filesystem()
+    fs_accounts = self.get_accounts_from_filesystem(fs_domains)
+
+    # And return the accounts on the filesystem that aren't in the DB.
+    return (fs_accounts - db_accounts)
+  end
+
+  protected;
+
   def get_domains_from_filesystem()
     return Filesystem.get_subdirs(@domain_root)
   end
 
-
   def get_accounts_from_filesystem(domains)
     accounts = []
 
     domains.each do |domain|
-      domain_path = File.join(@domain_root, domain)
-      usernames = Filesystem.get_subdirs(domain_path)
+      begin
+        # Throws a NonexistentDomainError if the domain's path
+        # doesn't exist on the filesystem. In this case, we want
+        # to report zero accounts.
+        domain_path = get_domain_path(domain)
+        usernames = Filesystem.get_subdirs(domain_path)
 
-      usernames.each do |username|
-        accounts << "#{username}@#{domain}"
+        usernames.each do |username|
+          accounts << "#{username}@#{domain}"
+        end
+      rescue NonexistentDomainError => e
+        # Party hard.
       end
     end
 
     return accounts
   end
 
+
+  def get_domain_path(domain)
+    # Return the filesystem path for the given domain.
+    # That is, the directory where its mail is stored.
+    # Only works if the domain directory exists!
+    domain_path = File.join(@domain_root, domain)
+
+    if File.directory?(domain_path)
+      return domain_path
+    else
+      raise NonexistentDomainError.new(domain_path)
+    end
+  end
+
+
+  def get_account_path(account)
+    # Return the filesystem path of this account's mailbox.
+    # Only works if the account exists!
+    if not account.include?('@')
+      raise InvalidAccountError.new("#{account}: Accounts must contain an '@' symbol.")
+    end
+
+    account_parts = account.split('@')
+    user_part = account_parts[0]
+    domain_part = account_parts[1]
+
+    domain_path = get_domain_path(domain_part)
+    account_path = File.join(domain_path, user_part)
+
+    if File.directory?(account_path)
+      return account_path
+    else
+      raise NonexistentAccountError.new(account_path)
+    end
+  end
+
 end