Admin Module

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This XQuery Module contains functions for performing admin-centric operations such as managing database users and log data.

Conventions

All functions and errors in this module are assigned to the http://basex.org/modules/admin namespace, which is statically bound to the admin prefix.

Database Logs

admin:logs

Signature
admin:logs(
  $date   as xs:string    := (),
  $merge  as xs:boolean?  := false()
) as element()*
Summary Returns Logging data compiled by the database or HTTP server:
  • If no argument is specified, a list of all log files will be returned, including the file size and date.
  • If a $date is specified, the contents of a single log file will be returned.
  • If $merge is set to true, related log entries will be merged. The merged representation may not be 100% correct, as log entries can be ambiguous.
Examples
  • admin:logs() may return <file size="834367"/>2015-01-23</file> if a single log file exists.
  • admin:logs() ! admin:logs(.) lists the contents of all log files.

admin:write-log

Signature
admin:write-log(
  $message  as xs:string,
  $type     as xs:string  := ()
) as empty-sequence()
Summary Writes a log $message to the database logs, along with current user data (timestamp, username). An optional log $type can be specified. If omitted, the log type is INFO.
If the function is called from a database client, the IP will be logged. Otherwise, the string SERVER will be logged.
Errors type: Type string contains whitespaces.

admin:delete-logs

Signature
admin:delete-logs(
  $date  as xs:string
) as empty-sequence()
Summary Deletes the log entries from the specified $date
Errors today: Today's log file cannot be deleted.
delete: An error occurred while deleting a log file.

Database Sessions

admin:sessions

Signature
admin:sessions() as element(session)*
Summary Returns an element sequence with all currently opened database sessions, including the username, address (IP:port) and an optionally opened database.
The output of this function and the SHOW SESSIONS command is similar.
Examples
  • admin:sessions() may e.g. return <session user="admin" address="127.0.0.1:6286" database="factbook"/>

Errors

Code Description
delete An error occurred while deleting a log file.
today Today's log file cannot be deleted.
type Type string contains whitespaces.

Changelog

Version 9.2
Version 9.0
  • Updated: error codes updated; errors now use the module namespace
Version 8.3
Version 8.2
Version 8.0
Version 7.8.2
  • Updated: admin:users: md5-encoded password added to output.
  • Updated: admin:logs: represent name of log files as string value; $merge argument added.

The Module was introduced with Version 7.5.