Kevin A. McGrail > Mail-SpamAssassin > Mail::SpamAssassin::Logger

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SpamAssassin/Mail-SpamAssassin-3.4.0.tar.gz

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NAME ^

Mail::SpamAssassin::Logger - SpamAssassin logging module

SYNOPSIS ^

  use Mail::SpamAssassin::Logger;

  $SIG{__WARN__} = sub {
    log_message("warn", $_[0]);
  };

  $SIG{__DIE__} = sub {
    log_message("error", $_[0])  if !$^S;
  };

METHODS ^

add_facilities(facilities)

Enable debug logging for specific facilities. Each facility is the area of code to debug. Facilities can be specified as a hash reference (the key names are used), an array reference, an array, or a comma-separated scalar string. Facility names are case-sensitive.

If "all" is listed, then all debug facilities are implicitly enabled, except for those explicitly disabled. A facility name may be preceded by a "no" (case-insensitive), which explicitly disables it, overriding the "all". For example: all,norules,noconfig,nodcc. When facility names are given as an ordered list (array or scalar, not a hash), the last entry applies, e.g. 'nodcc,dcc,dcc,noddc' is equivalent to 'nodcc'. Note that currently no facility name starts with a "no", it is advised to keep this practice with newly added facility names to make life easier.

Higher priority informational messages that are suitable for logging in normal circumstances are available with an area of "info". Some very verbose messages require the facility to be specifically enabled (see would_log below).

log_message($level, @message)

Log a message at a specific level. Levels are specified as strings: "warn", "error", "info", and "dbg". The first element of the message must be prefixed with a facility name followed directly by a colon.

dbg("facility: message")

This is used for all low priority debugging messages.

info("facility: message")

This is used for informational messages indicating a normal, but significant, condition. This should be infrequently called. These messages are typically logged when SpamAssassin is run as a daemon.

add(method => 'syslog', socket => $socket, facility => $facility)

socket is the type the syslog ("unix" or "inet"). facility is the syslog facility (typically "mail").

add(method => 'file', filename => $file)

filename is the name of the log file.

add(method => 'stderr')

No options are needed for stderr logging, just don't close stderr first.

remove(method)

Remove a logging method. Only the method name needs to be passed as a scalar.

would_log($level, $facility)

Returns 0 if a message at the given level and with the given facility would be logged. Returns 1 if a message at a given level and facility would be logged normally. Returns 2 if the facility was specifically enabled.

The facility argument is optional.

close_log()

Close all logs.

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