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Variables ========= You can use special variables in several places: * [MailLocation.txt] setting and [Namespaces.txt] locations * [UserDatabase.Static.txt] and [AuthDatabase.PasswdFile.txt] template strings * [AuthDatabase.LDAP.txt] and [AuthDatabase.SQL.txt] userdb query strings * log prefix for imap/pop3 process * [Plugins.txt] settings The variables that work everywhere are: * %u - username * %n - user part in user@domain, same as %u if there's no domain * %d - domain part in user@domain, empty if user there's no domain * %s - service (IMAP, POP3, smtp, deliver (unfortunately mixed casing is used)) * %p - PID of the current process (login or imap/pop3 process) * %l - local IP address * %r - remote IP address These variables work almost everywhere else except in Dovecot-auth (userdb queries/templates): * %h - home directory * %i - UNIX UID of the user These variables work only in Dovecot-auth: * %w - plaintext password from plaintext authentication mechanism * %m - authentication method (eg. PLAIN) (since v1.0.rc27) * %c - "secured" string with SSL, TLS and localhost connections. Otherwise empty. (since v1.0.rc27) These variables work only in 'login_log_format_elements' setting: * %m - authentication method (eg. PLAIN) * %a - Local port * %b - Remote port * %c - SSL, TLS or empty Modifiers --------- You can apply a modifiers for each variable (eg. %Ls = pop3): * %L - lowercase * %U - uppercase * %E - escape '"', "'" and '\' characters by inserting '\' before them. Note that variables in SQL queries are automatically escaped, you don't need to use this modifier for them. * %R - reverse the string * %H - take a 32bit hash of the variable and return it as hex. You can also limit the hash value. For example %256Hu gives values 0..ff. You might want padding also, so %2.256Hu gives 00..ff. This can be useful for example in dividing users automatically to multiple partitions. Note that if you're hashing usernames being in user@domain form, you probably want to reverse the string to get better hash value variety, eg. %3RHu. * %M - return the string's MD5 sum * %D - return "sub.domain.org" as "sub,dc=domain,dc=org" (for LDAP queries) You can take a substring of the variable by giving optional offset followed by '.' and width after the '%' character. For example %2u gives first two characters of the username. %2.1u gives third character of the username. If the offset is negative, it counts from the end, for example %-2.2i gives the UID mod 100 (last two characters of the UID printed in a string). If a positive offset points outside the value, empty string is returned, if a negative offset does then the string is taken from the start. If the width is prefixed with zero, the string isn't truncated, but only padded with '0' character if the string is shorter. For example %04i may return "0001", "1000" and "12345". %1.04i for the same string would return "001", "000" and "2345". Type in %% to get a literal percent sign. (This file was created from the wiki on 2007-06-15 04:42)