276 lines
8.4 KiB
Plaintext
Executable File
276 lines
8.4 KiB
Plaintext
Executable File
<html>
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<head><title>Memcache view</title>
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<body>
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<?_code
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use strict;
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use vars qw(%GET %POST);
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use Data::Dumper;
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my $ret;
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my $remote = LJ::get_remote();
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return "<b>Error:</b> You don't have access to viewing memcache info."
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unless (LJ::check_priv($remote, "siteadmin", "memcacheview"));
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return "<b>Error:</b> No memcache servers defined."
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unless @LJ::MEMCACHE_SERVERS;
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my $uid = sub {
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my $u = LJ::load_user(shift);
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return $u ? $u->{'userid'} : "";
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};
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my $cuid = sub {
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my $u = LJ::load_user(shift);
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return $u ? "$u->{'clusterid'}:$u->{'userid'}" : "";
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};
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# key: unique prefix of a memcache key
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# value: number n, means the n-th component of the key when
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# split by ':' is the hash key. 0 means no hash key.
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# the default, when absent from this hash, is "n=2 if the 2nd component
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# is a number".
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my %MEMC_HASHKEYS = (
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'uidof:' => 0,
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'talksubject:' => 3,
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'talkbody:' => 3,
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'logtext:' => 3,
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's1pubstyc:' => 0,
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'popsyn:' => 0,
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'rate_eperr:' => 0,
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'rate:' => 0,
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'ml.' => 0,
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);
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my $get_hashkey = sub {
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my $key = shift;
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return undef unless $key;
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my $hk;
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my $component;
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foreach (keys %MEMC_HASHKEYS) {
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if ($key =~ /^$_/) {
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$component = $MEMC_HASHKEYS{$_};
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}
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}
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return undef if defined ($component) and $component == 0;
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my $sep = ':';
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$sep = '.' if $key =~ /userpic\./; #special case
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my @els = split (/\Q$sep\E/, $key);
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$hk = $els[defined($component) ? $component-1 : 2-1];
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$hk = undef
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unless defined($component) || int($hk)==$hk;
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return $hk;
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};
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my $display = sub {
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my ($key, $val) = @_;
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# first, transform array->hash if necessary
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$val = LJ::MemCache::array_to_hash("user", $val)
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if $key =~ /^user:/
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or $key =~ /^userid:/;
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# blot out passwords
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if (ref $val eq 'HASH' && defined($val->{'password'})) {
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$val->{'password'} = '*' x 8;
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}
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# unpack packed data
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if ($key =~ /^talk2:/) {
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my $newval;
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my $n = (length($val) - 1) / 16;
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for (my $i=0; $i<$n; $i++) {
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my ($f1, $par, $poster, $time) = unpack("NNNN",substr($val,$i*16+1,16));
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my $state = chr($f1 & 255);
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my $talkid = $f1 >> 8;
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$newval->{$talkid} = {
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talkid => $talkid,
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state => $state,
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posterid => $poster,
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datepost => LJ::mysql_time($time),
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parenttalkid => $par,
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};
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}
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$val = [substr($val,0,1), $newval];
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}
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if ($key =~ /^log2:/) {
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my $item = {};
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@$item{'posterid', 'eventtime', 'logtime', 'allowmask', 'ditemid'} = unpack("NNNNN", $val);
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$item->{'security'} = ($item->{'allowmask'} == 0 ? 'private' :
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($item->{'allowmask'} == 2**31 ? 'public' : 'usemask'));
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@$item{'jitemid', 'anum'} = ($item->{'ditemid'} >> 8, $item->{'ditemid'} % 256);
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$item->{'eventtime'} = LJ::mysql_time($item->{'eventtime'}, 1);
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$item->{'logtime'} = LJ::mysql_time($item->{'logtime'}, 1);
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$val = $item;
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}
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if ($key =~ /^log2lt:/) {
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my $items = [];
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my $ver = substr($val, 0, 1);
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my $offset = {1=>1, 2=>5, 3=>5}->{$ver};
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my $newval;
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push @$newval, $ver;
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push @$newval, unpack("N", substr($val, 1, 4))
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if $ver>=2;
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my $n = (length($val) - $offset )/20;
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for (my $i=0; $i<$n; $i++) {
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my ($posterid, $eventtime, $rlogtime, $allowmask, $ditemid) =
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unpack("NNNNN", substr($val, $i*20+$offset, 20));
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$eventtime = LJ::mysql_time($eventtime, 1);
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my $security = $allowmask == 0 ? 'private' :
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($allowmask == 2**31 ? 'public' : 'usemask');
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my ($jitemid, $anum) = ($ditemid >> 8, $ditemid % 256);
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my $item = {};
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@$item{'posterid','eventtime','rlogtime','allowmask','ditemid',
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'security', 'jitemid', 'anum'} =
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($posterid, $eventtime, $rlogtime, $allowmask,
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$ditemid, $security, $jitemid, $anum);
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push @$items, $item;
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}
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push @$newval, $items;
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$val = $newval;
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}
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if ($key =~ /^fgrp:/) {
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my $newval = [];
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my $ver = shift @$val;
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push @$newval, $ver;
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foreach(@$val) {
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push @$newval, LJ::MemCache::array_to_hash("fgrp", [$ver, @$_]);
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}
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$val = $newval;
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}
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if ($key =~ /^upicinf:(\d+)$/) {
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my $userid = $1;
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my ($ver, $picstr, $kwstr) = @$val;
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my $info = {
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'version' => $ver,
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'pic' => {},
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'kw' => {},
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};
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while (length $picstr >= 7) {
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my $pic = { userid => $userid };
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($pic->{picid},
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$pic->{width}, $pic->{height},
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$pic->{state}) = unpack "NCCA", substr($picstr, 0, 7, '');
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$info->{pic}{$pic->{picid}} = $pic;
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}
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my ($pos, $nulpos);
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$pos = $nulpos = 0;
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while (($nulpos = index($kwstr, "\0", $pos)) > 0) {
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my $kw = substr($kwstr, $pos, $nulpos-$pos);
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my $id = unpack("N", substr($kwstr, $nulpos+1, 4));
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$pos = $nulpos + 5; # skip NUL + 4 bytes.
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$info->{kw}{$kw} = $info->{pic}{$id} if $info;
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}
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$val = $info;
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}
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if ($key =~ /^friends:/) {
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my $ver = substr($val, 0, 1, '');
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my $packfmt = "NH6H6NC";
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my $packlen = 15;
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my @cols = qw(friendid fgcolor bgcolor groupmask showbydefault);
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my %friends;
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while (length($val) >= $packlen) {
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my @row = unpack($packfmt, substr($val, 0, $packlen, ''));
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# add "#" to beginning of colors
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$row[$_] = "\#$row[$_]" foreach 1..2;
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# turn unpacked row into hashref
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my $fid = $row[0];
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my $idx = 1;
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foreach my $col (@cols[1..$#cols]) {
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$friends{$fid}->{$col} = $row[$idx];
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$idx++;
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}
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}
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$val = [$ver, \%friends];
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}
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if ($key =~ /^tu:/) {
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$val = unpack("N", $val);
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}
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# just in case this remains a packed scalar
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if (not ref $val) {
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$val =~ s/([\x00-\x1f])/sprintf("\\x%02x", $1)/eg;
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}
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$ret .= "<b>Data: </b>";
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my $dumper = Data::Dumper->new([$val],["Value"]);
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$dumper->Terse(1);
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$dumper->Indent(2);
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my $d = $dumper->Dump();
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$ret.= "<pre>" . LJ::ehtml($d) . "</pre>";
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return;
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};
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if ($POST{'query'}) {
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foreach my $key (split(/\r\n/, $POST{'query'})) {
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next unless $key =~ /\S/;
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# shortcuts
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$key =~ s/(##)(\w+)/$cuid->($2)/eg;
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$key =~ s/(#)(\w+)/$uid->($2)/eg;
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$key =~ s!\((\d+)\)!int($1/256)!eg;
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my $sock = LJ::MemCache::_get_sock($key);
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$ret .= "<p><b>Key: </b>$key<br />";
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unless ($sock) {
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$ret .= "<b>Error: </b>Could not connect to server<br /></p>";
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next;
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}
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if ($POST{'sock'}) {
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$ret .= "<b>Socket:</b> $sock<br />";
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}
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my $hashkey = $get_hashkey->($key);
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if ($hashkey) {
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$ret .= "<b>Hashkey:</b> $hashkey<br />";
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}
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my $pars = defined($hashkey) ? [$hashkey, $key] : $key;
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my $val = LJ::MemCache::get($pars);
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unless (defined $val) {
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$ret .= "<b>Data:</b> not found</br ></p>";
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next;
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}
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$display->($key, $val);
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$ret .= "</p>";
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}
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return $ret;
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}
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$ret .= "<p>Enter your memcache query(-ies) below.</p>";
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$ret .= '<p>Here\'s the <a href="http://cvs.livejournal.org/browse.cgi/livejournal/doc/raw/memcache-keys.txt?rev=.&content-type=text/x-cvsweb-markup">reference</a> of key names.</p>';
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$ret .= "<p>Shortcuts: <blockquote>#username -> userid<br /> ##username -> cid:userid<br />(number) -> number/256 </blockquote></p>";
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$ret .= '<form method="post" action="memcache_view.bml">';
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$ret .= "<textarea name=query rows=3 cols=60 wrap=off></textarea> ";
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$ret .= "<p>" . LJ::html_check({ 'type' => 'check', 'name' => 'sock', 'id' => 'sock' });
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$ret .= "<label for='sock'>Show host/port per key.</label></p>";
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$ret .= "<input type='submit' value='Submit'>";
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return $ret;
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_code?>
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</body>
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</html>
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