#!/usr/bin/perl
use strict;
use CGI qw(:standard);
use Date::Manip qw(ParseDate ParseDateString ParseDateDelta DateCalc UnixDate);
use Date::Parse;
use HTML::Entities;
use LWP::Simple qw(get);
use XML::DOM;
 
use constant URL_EVENTS => 'http://api.meetup.com/events?key=%s&member_id=%d&format=xml';
 
print header(q(text/calendar));
 
my $parser = new XML::DOM::Parser ();
 
my $mode = param( 'cal' );
my $key  = param( 'key' );
my $user = param( 'user' );
 
if ( ! $mode || ! $key || ! $user ) {
  die
}
 
my $events_url = sprintf( URL_EVENTS, $key, $user );
#warn $events_url;
my $events_txt = get( $events_url );
#warn $events_txt;
my $events_dom = $parser->parse( $events_txt );
#warn $events_dom;
 
print qq(BEGIN:VCALENDAR\nPRODID:-//Meetup Inc//RemoteApi//EN\nVERSION:2.0\nMETHOD:PUBLISH\nCALSCALE:GREGORIAN\nX-ORIGINAL-URL:http://www.meetup.com/\nX-WR-CALNAME:mu $mode\n);
 
my $events = $events_dom->getElementsByTagName( 'item' );
for ( my $i = 0 ; $i < $events->getLength() ; $i++ ) {
  my $event = $events->item( $i );
  my $n_id    = $event->getElementsByTagName( 'id'             )->item( 0 )->getFirstChild();
  my $n_rsvp  = $event->getElementsByTagName( 'myrsvp'         )->item( 0 )->getFirstChild();
  my $n_addr0 = $event->getElementsByTagName( 'venue_name'     )->item( 0 )->getFirstChild();
  my $n_addr1 = $event->getElementsByTagName( 'venue_address1' )->item( 0 )->getFirstChild();
  my $n_addr2 = $event->getElementsByTagName( 'venue_address2' )->item( 0 )->getFirstChild();
  my $n_addr3 = $event->getElementsByTagName( 'venue_address3' )->item( 0 )->getFirstChild();
  my $n_addr4 = $event->getElementsByTagName( 'venue_city'     )->item( 0 )->getFirstChild();
  my $n_addr5 = $event->getElementsByTagName( 'venue_state'    )->item( 0 )->getFirstChild();
  my $n_addr6 = $event->getElementsByTagName( 'venue_zip'      )->item( 0 )->getFirstChild();
  my $n_desc  = $event->getElementsByTagName( 'description'    )->item( 0 )->getFirstChild();
  my $n_link  = $event->getElementsByTagName( 'event_url'      )->item( 0 )->getFirstChild();
  my $n_name  = $event->getElementsByTagName( 'name'           )->item( 0 )->getFirstChild();
  my $n_lat   = $event->getElementsByTagName( 'venue_lat'      )->item( 0 )->getFirstChild();
  my $n_lon   = $event->getElementsByTagName( 'venue_lon'      )->item( 0 )->getFirstChild();
  my $n_start_time  = $event->getElementsByTagName( 'time'           )->item( 0 )->getFirstChild();
 
  my $start_time;
  my $end_time;
 
  #my $dummy_time = "20000101T000000Z";
  my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time());
  my $dummy_time = sprintf( q(%04d%02d%02dT%02d%02d%02dZ), $year + 1900, $mon + 1, $mday, $hour, $min, $sec );
 
  if ( $n_start_time ) {
    my ($ss,$mm,$hh,$day,$month,$year,$zone);
 
    ($ss,$mm,$hh,$day,$month,$year,$zone) = strptime( $n_start_time->toString() );
    $start_time = sprintf( q(%04d%02d%02dT%02d%02d%02dZ), $year + 1900, $month + 1, $day, $hh, $mm, $ss );
 
    my $eday = $day;
    if ( $hh == 23 ) {
      $eday = $day + 1;
    }
    my $ehh = ($hh + 1) % 24;
    $end_time   = sprintf( q(%04d%02d%02dT%02d%02d%02dZ), $year + 1900, $month + 1, $eday, $ehh, $mm, $ss );
  }
  else {
    $start_time = '';
    $end_time = '';
  }
 
  if ( $mode eq $n_rsvp->toString() ) {
    my $id   = $n_id->toString();
    my $name = $n_name ? $n_name->toString() : "";
    my $desc = $n_desc ? $n_desc->toString() : "";
    my $addr = ( $n_addr0 ? $n_addr0->toString().', ' : "" )
             . ( $n_addr1 ? $n_addr1->toString().', ' : "" )
             . ( $n_addr2 ? $n_addr2->toString().', ' : "" )
             . ( $n_addr3 ? $n_addr3->toString().', ' : "" )
             . ( $n_addr4 ? $n_addr4->toString().', ' : "" )
             . ( $n_addr5 ? $n_addr5->toString().', ' : "" )
             . ( $n_addr6 ? $n_addr6->toString() : "" );
    #$desc =~ s/(.)/(ord($1) > 127) ? "" : $1/egs;
 
    $name = HTML::Entities::decode_entities( $name );
    $desc = HTML::Entities::decode_entities( $desc );
    $addr = HTML::Entities::decode_entities( $addr );
    $name =~ s/,/\\,/g;
    $desc =~ s/,/\\,/g;
    $addr =~ s/,/\\,/g;
 
    $desc =~ s#
#\\n#gs;
    $desc .= "\\n\\n\\nGoing?\\n\\n";
    foreach my $response ( qw( yes no maybe ) ) {
      $desc .= uc($response).qq(: http://api.meetup.com/rsvp?event_id=$id&key=$key&rsvp=$response\\n);
    }
 
    my $geo = $n_lat && $n_lon ? "GEO:" . $n_lat->toString() . ";" . $n_lon->toString() . "\n" : undef;
 
    #print sprintf( qq(BEGIN:VEVENT\nSUMMARY:%s\nDESCRIPTION:%s\nLAST-MODIFIED:%s\nUID:%s\nCLASS:%s\nCREATED:%s\nDTSTAMP:%s\nDTSTART:%s\nDTEND:%s\nLOCATION:%s\n\nURL:%s\nEND:VEVENT\n),
    print sprintf( qq(BEGIN:VEVENT\nSUMMARY:%s\nDESCRIPTION:%s\nLAST-MODIFIED:%s\nUID:%s\nCLASS:%s\nCREATED:%s\nDTSTAMP:%s\nDTSTART:%s\nDTEND:%s\n%sLOCATION:%s\nURL:%s\nEND:VEVENT\n),
      $name,
      $desc,
      $start_time,
      "event_$id\@meetup.com",
      "PUBLIC",
      $dummy_time,
      $dummy_time,
      $start_time,
      $end_time,
      $geo,
      $addr,
      $n_link ? $n_link->toString() : "",
    );
  }
}
 
print qq(END:VCALENDAR\n);

#!/usr/bin/perl
$|++;
use strict;
use Getopt::Long;
 
my $mode = 'line';
my $tick = 100;
my $help = undef;
my $keysfile = undef;
my %keys = ();
 
GetOptions(
  'mode|m=s' => \$mode,
  'tick|t=i' => \$tick,
  'help|h'   => \$help,
  'keys|k=f' => \$keysfile,
);
 
if ( $help || ( $mode ne 'line' && $mode ne 'time' ) || $tick <= 0 || ( defined($keysfile) && !-f $keysfile ) ) {
  my $USAGE = join '', <DATA>;
  print STDERR $USAGE and exit(1);
}
 
if ( $keysfile ) {
  open(K, $keysfile) or die "Couldn't open keys file '$keysfile': $!";
  while ( my $line = <K> ) {
    chomp $line;
    $keys{ $line }++;
  }
  close(K);
}
 
my %count = %keys;
my $offset = 0;
my $mark = 0;
my $offset = 0;
 
if ( $mode eq 'time' ) {
  $mark = time();
}
 
while ( my $element = <> ) {
  chomp $element;
  if ( scalar( %keys ) ) {
    $count{ $element }++ if $keys{ $element };
  }
  else {
    $count{ $element }++;
  }
 
  if ( $mode eq 'line' ) {
    $offset++;
    $mark++;
    if ( $mark >= $tick ) {
      $mark = 0;
      flush();
    }
  }
  elsif ( $mode eq 'time' ) {
    if ( $mark + $tick < time() ) {
      $offset = time();
      $mark = time();
      flush();
    }
  }
}
flush();
 
sub flush {
  print "summary/$tick @ $offset\n";
  foreach my $k ( sort keys %count ) {
    print "\t", $count{ $k }, "\t", $k, "\n";
  }
  %count = %keys;
}
 
__DATA__
Usage: aggregate [-h] [-m <time|line>] [-t <# of seconds or lines>] [-k <keys file>]
 
Read lines from STDIN.  Print lines by frequency per input lines or time.
 
  -h    show help (this message)
  -m    mode.  one of 'time' or 'line'.  defaults to 'line'.
  -t    aggregation size.  an integer.  value is # of lines ('line' mode) or # of
        seconds ('time' mode) after which an aggregation is triggered.  defaults to 100.
  -k    keys file.  a text file of strings to *exactly* match in the input, one per line.
        if a keys file is provided, lines not present in the keys file will be silently
        ignored.

#!/usr/bin/perl
$|++;
use strict;
use Getopt::Long;
 
my $USAGE = join '', <DATA>;
 
my $B = 0;
my $D = 1;
my $H = 0;
 
GetOptions ("buffer|b=i"   => \$B,
            "draw|d=i"     => \$D,
            "help|h"       => \$H,
           ); 
 
if ( $D == 1 && $B > 0 ) {
  $D = $B;
}
 
if (
  ($B < 0) ||
  ($D < 1) ||
  ($B > $D) ||
  ($H)
) {
  print $USAGE and exit(1);
}
 
 
my @buf = ();
 
while ( my $element = <> ) {
  #buffer whole stream
  if ( $B == 0 ) {
    push @buf, $element;
  }
  #no-op
  elsif ( $B == 1 ) {
    print $element;
  }
  #buffer window
  else {
    push @buf, $element;
    if ( scalar( @buf ) >= $D && scalar( @buf ) > $B ) {
      flush();
    }
  }
}
flush();
 
sub flush {
  for ( my $j = scalar( @buf ) - 1 ; $j >= 0 ; $j-- ) {
    my $swap = int(rand($j));
    if ( $swap != $j ) {
      ($buf[ $j ], $buf[ $swap ]) = ($buf[ $swap ], $buf[ $j ]);
    }
  }
  while ( scalar( @buf ) - 1 > $B - $D ) {
    print shift @buf;
  }
}
 
 
__DATA__
Usage: shuffle [-h] [-b <buffer size>] [-d <draw size>]
 
Shuffle lines from a stream on STDIN.  Write lines to STDOUT.
 
  -h    show help (this message)
  -b    buffer size
        (default 0.  indicates shuffle whole stream, then write)
        range: 1..
  -d    draw size
        (defaults to value of -b.  number of items to remove from the
        buffer when it fills)
        range: 1..buffer size
 
You have to parameters available (besides -h for help).
 
* buffer size (-b).  Determines how many elements to temporarily hold
before shuffling.  The advantage of this buffer is to allow shuffling on
very long streams that would not fit into system memory.  The
disadavantage is that it is not a truly random shuffle, as each input
element can appear at most buffer-size positions away from the original
position.  Buffer size defaults to zero, so make sure to set it if your
data set size is large.
 
* draw size (-d).  Determines how frequently the buffer is shuffled and
flushed.  Rather than shuffling/flushing all elements in the buffer, only
do D elements.  The advantage here is elements can appear more than
buffer-size positions away from the original position.  The disadvantage
is that shuffling is done B/D times more frequently.  Draw size defaults
to buffer size, and has no effect.  Set it to 1 to maximize randomness.
 
Copyright/License:
 
  Allen Day <allenday@ucla.edu>, licensed under GPL 2006-2008

#!/usr/bin/perl
$|++;
use strict;
use Getopt::Long;
 
my $USAGE = join '', <DATA>;
 
my $T = 0;
my $K = 0;
my $P = 1;
my $H = 0;
my $N = 0;
my $S = 0;
 
GetOptions ("time|t=i"     => \$T,
            "number|n=i"   => \$N,
            "count|k=i"    => \$K,
            "prob|p=f"     => \$P,
            "shuffle|s"    => \$S,
            "help|h"       => \$H,
           ); 
 
if (
  ($T > 0 && $P != 1) ||
  ($K > 0 && $P != 1) ||
  ($K < 0 || $P < 0 || $T < 0 || $N < 0 || $P > 1 ) ||
  ($T > 0 && $N > 0) ||
  ($H)
) {
  print $USAGE and exit(1);
}
 
my $position = 0;
my @buf = ();
my $before = time();
 
while ( my $element = <> ) {
  # sample full stream, report at the end
  # sample K elements every T seconds
  if ( $K > 0 ) {
    if ( scalar( @buf ) < $K ) {
      push @buf, [$position, $element];
    }
    elsif ( $K/$position < rand() ) {
      my $index = int(rand($K));
      $buf[ $index ] = [$position, $element]; #save position for sort
    }
    #time-based K-sampling
    if ( $T > 0 && time() > $before + $T ) {
      flush();
    }
    #event-based K-sampling
    elsif ( $N > 0 && $position > $N ) {
      flush();
    }
  }
  # sample with probability
  elsif ( $P < 1 && rand() < $P ) {
    print $element;
  }
  $position++;
}
flush();
 
sub flush {
  $before = time();
  #Knuth shuffle
  if ( $S ) {
    for ( my $j = scalar( @buf ) - 1 ; $j >= 0 ; $j-- ) {
      my $swap = int(rand($j));
      if ( $swap != $j ) {
        ($buf[ $j ], $buf[ $swap ]) = ($buf[ $swap ], $buf[ $j ]);
      }
      print $buf[ $j ]->[ 1 ];
    }
  }
  else {
    foreach my $b ( sort {$a->[0] <=> $b->[0]} @buf ) {
      print $b->[1];
    }
  }
  @buf = ();
  $position = 0;
}
 
 
__DATA__
Usage: sample -[[h][p][t[k[n]]]]
 
Sample lines from a stream on STDIN.  Write lines to STDOUT.
 
  -h    show help (this message)
  -k    sample K elements from stream
        (default 0)
        range: 0..
  -p    sample elements from stream with probability
        (default 1)
        range: 0 <= p <= 1
  -n    sample over windows of N elements
        (default 0)
        range: 0..
  -t    sample over windows of T seconds
        (default 0, instantaneous with -p, infinity with -k)
        range: 0..
  -s    shuffle outputs
        (default false)
 
There are two modes of sampling:
 
  * sample with probability (-p)
  * sample a fixed number of elements (-k)
 
Both modes sample over a given time interval in seconds (-t).
-t defaults to zero (process full stream).  -p can only be
used alone.  -n can only be used with -k
 
Examples:
 
  * sample K elements from a stream:
    cat /etc/passwd | sample -k 5
 
  * sample 1% of elements from a stream:
    tail -f /var/logs/httpd/access_log | sample -p 0.01
 
  * sample K elements from a stream every 30 seconds:
    tail -f /var/logs/httpd/access_log | sample -k 5 -t 30
 
  * sample K elements from a stream every 30 seconds, shuffled:
    tail -f /var/logs/httpd/access_log | sample -k 5 -t 30 -s
 
  * sample K elements from a stream every 100 elements:
    tail -f /var/logs/httpd/access_log | sample -k 5 -n 100
 
Copyright/License:
 
  Allen Day <allenday@ucla.edu>, licensed under GPL 2006-2008

#!/usr/bin/perl
use strict;
use warnings;
use threads;
use threads::shared;
use Fuse;
use LWP::UserAgent;
use LWP::Simple;
use List::MoreUtils qw(uniq);
use MogileFS::Client;
use Path::Class;
use POSIX qw(ENOENT EISDIR EINVAL);
my $DEBUG = 0;
our (%FILE_CACHE, $CACHE_SIZE, $CACHE_AGE) = (('/' => {size => 0, age => 0}));
 
# create client object w/ server-configured namespace and IPs of trackers
my $ua = LWP::UserAgent->new;
my $class = 'default';
my $mogilefs = MogileFS::Client->new(
  domain => 'ifap',
  hosts  => [ '10.10.0.100:6001', '10.10.0.101:6001' ],
);
 
my ($mountpoint) = "";
$mountpoint = shift(@ARGV) if @ARGV;
Fuse::main(
    debug      => $DEBUG,
    mountpoint => $mountpoint,
    threaded   => 1,
 
    getattr    => "main::e_getattr",
    getdir     => "main::e_getdir",
    mknod      => "main::e_mknod",
    open       => "main::e_open",
    read       => "main::e_read",
    rename     => "main::e_rename",
    statfs     => "main::e_statfs",
    unlink     => "main::e_unlink",
    write      => "main::e_write",
);
 
sub e_getattr {
    my $filename = shift;
    $filename =~ s#^.*/##;
    warn "main::e_getattr $filename\n" if $DEBUG;
 
    my ( $size, $modes );
    my ( $dev, $ino, $rdev, $blocks, $gid, $uid, $nlink, $blksize )
        = ( 0, 0, 0, 1, 0, 0, 1, 1024 );
    my ( $atime, $ctime, $mtime ) = ( time, time, time );
 
    if ( $filename !~ m{\.} ) {
        #        warn "directory!";
        $size  = 0;
        $modes = ( 0040 << 9 ) + 0755;
    } else {
        #        warn "file!";
        $size  = 123;
        $modes = ( 0100 << 9 ) + 0644;
 
        my @paths = $mogilefs->get_paths( $filename, { noverify => 1 } );
        my ( $content_type, $document_length, $modified_time, $expires, $server );
 
        if ( scalar( @paths ) ) {
            ( $content_type, $document_length, $modified_time, $expires, $server ) = head( $paths[0] );
            $size = $document_length;
            ( $atime, $ctime, $mtime ) = ($modified_time) x 3;
        }
        else {
            @paths = $mogilefs->get_paths( '_big_info:' . $filename, { noverify => 1 } );
            if ( scalar( @paths ) ) {
                my $data = $mogilefs->get_file_data( '_big_info:' . $filename );
                my ( $_des, $_type, $_compress, $_filename, $_chunks, $_size, undef, @_parts ) = split /\n/, $$data;
                ( $size ) = $_size =~ m#^size (\d+)$#;
                OUTER: foreach my $_part ( @_parts ) {
                    $_part =~ m#paths: (.+?)$#;
                    my @_paths = split ', ', $_part;
                    foreach my $_path ( @_paths ) {
                        ( $content_type, $document_length, $modified_time, $expires, $server ) = head( $paths[0] );
                        ( $atime, $ctime, $mtime ) = ($modified_time) x 3;
                        last OUTER if $server;
                    }
                }
            }
        }
        return -ENOENT() unless @paths;
    }
 
    warn(
        join(
            ",",
            (   $dev,   $ino,     $modes, $nlink, $uid,
                $gid,   $rdev,    $size,  $atime, $mtime,
                $ctime, $blksize, $blocks
            )
        ),
        "\n"
    ) if $DEBUG;
 
    return (
        $dev,  $ino,   $modes, $nlink, $uid,     $gid, $rdev,
        $size, $atime, $mtime, $ctime, $blksize, $blocks
    );
}
 
sub e_getdir {
    my $prefix = shift;
    warn "main::e_getdir $prefix\n" if $DEBUG;
    my @filenames;
    $mogilefs->foreach_key(
#        prefix => $prefix,
        sub {
          my $filename = shift;
          push @filenames, $filename;
          push @filenames, file( $filename )->parent();
        }
    );
 
    @filenames = uniq @filenames;
    warn "returning: @filenames\n" if $DEBUG;
    return ( @filenames, 0 );
}
 
sub e_mknod {
    my $filename = shift;
    $filename =~ s#.*/##;
 
    warn "main::e_mknod $filename\n" if $DEBUG;
 
    my $fh = $mogilefs->new_file($filename, undef);
    if ( $fh ) {
        print $fh "\n";
 
        unless ($fh->close) {
            my ($code, $str) = ($mogilefs->errcode || -1, $mogilefs->errstr || '');
            warn "Error creating file:$code: $str" if $DEBUG;
            $! = $str;
            $? = $code;
            return -1;
        }
        return 0;
    }
    else {
        return -1;
    }
}
 
sub e_open {
    my $filename = shift;
    $filename =~ s#.*/##;
    warn "main::e_open $filename\n" if $DEBUG;
 
    return -EISDIR() unless $filename =~ m{\.};
    my @paths = $mogilefs->get_paths( $filename, { noverify => 1 } );
    if ( ! scalar( @paths ) ) {
        @paths = $mogilefs->get_paths( '_big_info:' . $filename, { noverify => 1 } );
    }
    return -ENOENT() unless @paths;
    return 0;
}
 
sub e_read {
    my ( $filename, $length, $offset ) = @_;
    $filename =~ s#.*/##;
    warn "main::e_read $filename $length $offset\n" if $DEBUG;
 
    return -EISDIR() if $filename =~ m{/$};
 
 
 
    my $maxoff = $offset + ( $length - 1 );
warn "requested offset=$offset length=$length bytes=$maxoff" if $DEBUG;
    my @paths = $mogilefs->get_paths( $filename, { noverify => 1 } );
    my $size;
    my ( $content_type, $document_length, $modified_time, $expires, $server );
 
    if ( scalar( @paths ) ) {
warn "it's a small file" if $DEBUG;
        ( $content_type, $document_length, $modified_time, $expires, $server ) = head( $paths[0] );
        $size = $document_length;
        return 0 if $offset == $document_length;
 
        $maxoff = $document_length if $maxoff > $document_length;
        my $range = $offset . "-" . $maxoff;
        warn "  Range: bytes=$range\n" if $DEBUG;
        my $response = $ua->get( $paths[0], "Range" => "bytes=$range" );
        if ( $response->is_success ) {
            return $response->content;
        } else {
            warn $response->as_string if $DEBUG;
        }
    }
    else {
        @paths = $mogilefs->get_paths( '_big_info:' . $filename, { noverify => 1 } );
        return -ENOENT() unless @paths;
warn "it's a big file" if $DEBUG;
 
        my $data = $mogilefs->get_file_data( '_big_info:' . $filename );
        my ( $_des, $_type, $_compress, $_filename, $_chunks, $_size, undef, @_parts ) = split /\n/, $$data;
        ( $size ) = $_size =~ m#^size (\d+)$#;
        return 0 if $offset == $size;
 
        $maxoff = $size if $maxoff > $size;
 
        my $part_min = -1;
        my $part_max = -1;
#part 2 bytes=23080964 md5=af45f7ac80ca34328db3c90de1db1ab0 paths: http://10.10.0.100:7500/dev8/0/000/119/0000119969.fid, http://10.10.0.101:7500/dev2/0/000/119/0000119969.fid
 
        my $buf = '';
        foreach my $_part ( @_parts ) {
            my ( $_bytes, $_paths ) = $_part =~ m#bytes=(\d+) .+? paths: (.+?)$#;
 
            $part_min = $part_max > 0 ? $part_max + 1 : 0;
            $part_max += $_bytes;
 
 
warn "examining part $part_min -> $part_max" if $DEBUG;
 
            #chunk too early
            next if ( $part_max < $offset );
            #chunk too late;
            next if ( $part_min > $maxoff );
 
warn "using part $part_min -> $part_max" if $DEBUG;
 
            my @_paths = split ', ', $_paths;
            foreach my $_path ( @_paths ) {
warn "offset=$offset part_min=$part_min maxoff=$maxoff part_max=$part_max" if $DEBUG;
                my $range = ($offset-$part_min) . "-" . ($maxoff-$part_min);
warn "getting Range: bytes=$range" if $DEBUG;
                my $response = $ua->get( $_path, "Range" => "bytes=$range" );
                if ( $response->is_success() ) {
                    $buf .= $response->content();
warn "data length=".length($buf) if $DEBUG;
                    if ( length( $buf ) == $length ) {
warn "got all the data (1)!" if $DEBUG;
                        return $buf;
                    }
                    elsif ( $offset + length( $buf ) == $maxoff ) {
warn "got all the data (2)!" if $DEBUG;
                        return $buf;
                    }
                    $offset += length( $buf );
                    last;
                }
            }
        }
        if ( length( $buf ) != $length ) {
            return -ENOENT();
        }
        else {
            return $buf;
        }
    }
}
 
sub e_rename {
    my ( $old, $new ) = @_;
    $old =~ s#.*/##;
    $new =~ s#.*/##;
 
    warn "main::e_rename: $old -> $new" if $DEBUG;
 
    # Rename this file
    $mogilefs->rename($old, $new);
 
    return 0;
}
 
sub e_statfs { return 255, 1, 1, 1, 1, 2 }
 
sub e_unlink {
    my $filename = shift;
    $filename =~ s#.*/##;
 
    warn "main::e_unlink: $filename" if $DEBUG;
 
    $mogilefs->delete($filename);
 
    return 0;
}
 
sub e_write {
    my ( $filename, $buf, $offset ) = @_;
    $filename =~ s#.*/##;
 
    warn("main::e_write: $filename pos=$offset len=".length($buf)) if $DEBUG;
 
    my $finfo = get_file_info($filename);
 
    return -ENOENT() unless $finfo;
 
    my $cont = get_file_data($filename);
 
    substr($$cont, $offset, length($buf), $buf);
 
    $mogilefs->store_content($filename, undef, $cont);
    rm_file_cache($filename);
 
    return length($buf);
}
 
#################################################
sub logmsg { warn(join "\t",@_) if $DEBUG }
 
sub get_file_data {
    my ($file) = @_;
    my $entry = $FILE_CACHE{$file};
    my $meta  = $FILE_CACHE{'/'};
 
    if ($entry) {
        # See if this data is too old
        if ((time - $entry->{created}) < $CACHE_AGE) {
            logmsg(1, "-- get_file_data: hit");
 
            # If its still valid, return it
            return $entry->{data};
        } else {
            logmsg(1, "-- get_file_data: miss - expired");
 
            rm_file_cache($file);
        }
    }
 
    my $cont = $mogilefs->get_file_data($file);
    my $size = length($$cont);
 
    if ($meta->{size} + $size > $CACHE_SIZE) {
        # If adding this would go beyond our max cache size, delete things until
        # we can fit it
        foreach my $f (sort {$a->{age} <=> $b->{age}} keys %FILE_CACHE) {
            next if $f eq '/';
 
            my $rm_size = rm_file_cache($f);
 
            logmsg(1, "-- get_file_data: purging - $rm_size bytes");
 
            last if $meta->{size} + $size < $CACHE_SIZE;
        }
    }
 
    logmsg(1, "-- get_file_data: added - $size bytes");
 
    # Create a new entry
    $FILE_CACHE{$file} = {created => time,
                          size    => $size,
                          data    => $cont};
    $meta->{size} += $size;
 
    return $cont;
}
 
sub get_file_info {
    my ($path) = @_;
 
    if ($path eq '/') {
        return {name         => '/',
                is_directory => 1};
    }
    else {
      foreach my $f ( $mogilefs->list_keys( $path ) ) {
        return $f if $f eq $path;
      }
    }
    return undef;
}
 
sub rm_file_cache {
    my ($file) = @_;
    my $entry = delete $FILE_CACHE{$file};
    return unless $entry;
 
    # Decrement how large our cache size is
    my $size = $entry->{size};
    $FILE_CACHE{'/'}->{size} -= $size;
 
    return $size;
}
 
__DATA__
#des no description
#type file
#compressed 0
#filename somefile.mpeg
#chunks 2
#size 90189828
#
#part 1 bytes=67108864 md5=8066369552b71fd49cfbe9ccdce74051 paths: http://10.10.0.100:7500/dev6/0/000/119/0000119968.fid, http://10.10.0.101:7500/dev2/0/000/119/0000119968.fid
#part 2 bytes=23080964 md5=af45f7ac80ca34328db3c90de1db1ab0 paths: http://10.10.0.100:7500/dev8/0/000/119/0000119969.fid, http://10.10.0.101:7500/dev2/0/000/119/0000119969.fid

tail -f /etc/httpd/logs/access_log

tail -f ./logs/access_log | pcoc -f '(iPod)=bold cyan' -f '(iPhone)=bold magenta' -f '\b(500|404|400)\b=red on_black'

#!/usr/bin/perl
use strict;
use Getopt::Long;
use Term::ANSIColor qw(colored);
$|++;
 
my %format = ();
GetOptions( "format|f=s" => \%format);
 
if ( ! keys %format ) {
  print <<"EOF";
Synopsis:
        pcoc - Piped Command Output Colorizer.  Inspired by acoc.
 
Usage:
 
        $0 -f '<regex1>=<color1>' -f '<regex2>=<color2>'
 
$0 reads from a pipe and colorizes each line based on format (-f) parameters.
 
Arguments:
 
-f '<regex>=<color>'  Required, multiple values okay. 
 
        <regex>: A regular expression from which \$1 will be colorized
 
        <color>: One or more colorization keywords, see perldoc
        Term::ANSIColor, but briefly they are:
 
        boldness:
                bold
        foreground:
                red yellow green blue magenta cyan black white
        background:
                on_red on_yellow on_green on_blue on_magenta on_cyan
                on_black on_white
 
Examples:
 
        #highlight the account's shell in bold green
        cat /etc/passwd | $0 -f '.+:([^:]+)\$=bold green'
 
        #... and the username in red with black background
        cat /etc/passwd | $0 -f '([^:]+)=red on_black' -f '.+:([^:]+)\$=bold green'
 
Copyright/License:
 
        Allen Day <allenday\@ucla.edu>, licensed under GPL 2006-2008
 
EOF
  exit(1);
}
 
while ( my $line = <> ) {
  chomp( $line );
  foreach my $f ( keys %format ) {
    my @c = split ',', $format{ $f };
 
    if ( $line =~ qr/$f/ ) {
      while ( my ( $s, $t ) = $f =~ m/^(.*?)\(+(.+?)\)+/ ) {
        my $c = pop @c || last;
        $line =~ s/($s)($t)/$1.colored($2,$c)/e;
        $f =~ s/^(.*?)\((.+?)\)/$1$2/;
      }
    }
  }
  print "$line\n";
}