Mail::SpamAssassin::ArchiveIterator(3pm)		User Contributed Perl Documentation		  Mail::SpamAssassin::ArchiveIterator(3pm)

NAME

       Mail::SpamAssassin::ArchiveIterator - find and process messages one at a time

SYNOPSIS

	 my $iter = new Mail::SpamAssassin::ArchiveIterator(
	   {
	     'opt_all'	 => 1,
	     'opt_cache' => 1,
	   }
	 );

	 $iter->set_functions( &wanted, sub { } );

	 eval { $iter->run(@ARGV); };

	 sub wanted {
	   my($class, $filename, $recv_date, $msg_array) = @_;

	   ...
	 }

DESCRIPTION

       The Mail::SpamAssassin::ArchiveIterator module will go through a set of mbox files, mbx files, and directories (with a single message per
       file) and generate a list of messages.  It will then call the "wanted_sub" and "result_sub" functions appropriately per message.

METHODS

       $item = new Mail::SpamAssassin::ArchiveIterator( [ { opt => val, ... } ] )
	   Constructs a new "Mail::SpamAssassin::ArchiveIterator" object.  You may pass the following attribute-value pairs to the constructor.
	   The pairs are optional unless otherwise noted.

	   opt_all
	       Typically messages over 250k are skipped by ArchiveIterator.  Use this option to keep from skipping messages based on size.

	   opt_scanprob
	       Randomly select messages to scan, with a probability of N, where N ranges from 0.0 (no messages scanned) to 1.0 (all messages
	       scanned).  Default is 1.0.

	       This setting can be specified separately for each target.

	   opt_before
	       Only use messages which are received after the given time_t value.  Negative values are an offset from the current time, e.g.
	       -86400 = last 24 hours; or as parsed by Time::ParseDate (e.g. '-6 months')

	       This setting can be specified separately for each target.

	   opt_after
	       Same as opt_before, except the messages are only used if after the given time_t value.

	       This setting can be specified separately for each target.

	   opt_want_date
	       Set to 1 (default) if you want the received date to be filled in in the "wanted_sub" callback below.  Set this to 0 to avoid this;
	       it's a good idea to set this to 0 if you can, as it imposes a performance hit.

	   opt_skip_empty_messages
	       Set to 1 if you want to skip corrupt, 0-byte messages.  The default is 0.

	   opt_cache
	       Set to 0 (default) if you don't want to use cached information to help speed up ArchiveIterator.  Set to 1 to enable.  This setting
	       requires "opt_cachedir" also be set.

	   opt_cachedir
	       Set to the path of a directory where you wish to store cached information for "opt_cache", if you don't want to mix them with the
	       input files (as is the default).  The directory must be both readable and writable.

	   wanted_sub
	       Reference to a subroutine which will process message data.  Usually set via set_functions().  The routine will be passed 5 values:
	       class (scalar), filename (scalar), received date (scalar), message content (array reference, one message line per element), and the
	       message format key ('f' for file, 'm' for mbox, 'b' for mbx).

	       Note that if "opt_want_date" is set to 0, the received date scalar will be undefined.

	   result_sub
	       Reference to a subroutine which will process the results of the wanted_sub for each message processed.  Usually set via
	       set_functions().  The routine will be passed 3 values: class (scalar), result (scalar, returned from wanted_sub), and received date
	       (scalar).

	       Note that if "opt_want_date" is set to 0, the received date scalar will be undefined.

	   scan_progress_sub
	       Reference to a subroutine which will be called intermittently during the 'scan' phase of the mass-check.  No guarantees are made as
	       to how frequently this may happen, mind you.

       set_functions( &wanted_sub, &result_sub )
	   Sets the subroutines used for message processing (wanted_sub), and result reporting.  For more information, see new() above.

       run ( @target_paths )
	   Generates the list of messages to process, then runs each message through the configured wanted subroutine.	Files which have a name
	   ending in ".gz" or ".bz2" will be properly uncompressed via call to "gzip -dc" and "bzip2 -dc" respectively.

	   The target_paths array is expected to be either one element per path in the following format: "class:format:raw_location", or a hash
	   reference containing key-value option pairs and a 'target' key with a value in that format.

	   The key-value option pairs that can be used are: opt_scanprob, opt_after, opt_before.  See the constructor method's documentation for
	   more information on their effects.

	   run() returns 0 if there was an error (can't open a file, etc,) and 1 if there were no errors.

	   class
	       Either 'h' for ham or 's' for spam.  If the class is longer than 1 character, it will be truncated.  If blank, 'h' is default.

	   format
	       Specifies the format of the raw_location.  "dir" is a directory whose files are individual messages, "file" a file with a single
	       message, "mbox" an mbox formatted file, or "mbx" for an mbx formatted directory.

	       "detect" can also be used.  This assumes "mbox" for any file whose path contains the pattern "/.mbox/i", "file" anything that is
	       not a directory, or "directory" otherwise.

	   raw_location
	       Path to file or directory.  File globbing is allowed using the standard csh-style globbing (see "perldoc -f glob").  "~" at the
	       front of the value will be replaced by the "HOME" environment variable.	Escaped whitespace is protected as well.

	       NOTE: "~user" is not allowed.

	       NOTE 2: "-" is not allowed as a raw location.  To have ArchiveIterator deal with STDIN, generate a temp file.

SEE ALSO

       "Mail::SpamAssassin" "spamassassin" "mass-check"

perl v5.14.2							    2011-06-06				  Mail::SpamAssassin::ArchiveIterator(3pm)