355 lines
12 KiB
Perl
355 lines
12 KiB
Perl
# Internal module used by FU.pm
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package FU::DebugImpl 0.4;
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use v5.36;
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use experimental 'for_list';
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use FU;
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use FU::XMLWriter ':html5_', 'fragment', 'xml_escape';
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use Time::HiRes 'time';
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use POSIX 'strftime';
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sub fmtts { strftime '%Y-%m-%d %H:%M:%S UTC', gmtime shift }
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sub loc_($loc) {
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txt_ '[internal]' if !@$loc;
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for (0..$#$loc) {
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br_ if $_;
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my $l = $loc->[$_];
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my $f = $_ == $#$loc ? '(main)' : $loc->[$_+1][3];
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txt_ "$l->[1]:$l->[2] $f";
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}
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}
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sub fmtpre_($code) {
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lit_ xml_escape($code) =~ s/^\s+//r =~ s/\s+$//r =~ s/\n/<br>/rg;
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}
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sub clean_re($str) {
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# Regex formatting isn't stable, but this cleans up the crap I'm seeing a little bit.
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"$str" =~ s/^\(\?\^u:\^\(\?\^u://r =~ s/\)\$\)$//r;
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}
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my @tabs = (
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req => sub {
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table_ sub {
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tr_ sub { td_ 'Method'; td_ fu->method };
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tr_ sub { td_ 'Path'; td_ fu->path };
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tr_ sub { td_ 'Query'; td_ fu->query };
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tr_ sub { td_ 'Client IP'; td_ fu->ip };
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tr_ sub { td_ 'Received'; td_ fmtts $FU::REQ->{trace_start} };
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};
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h2_ 'Headers';
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table_ sub {
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tr_ sub {
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td_ $_;
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td_ fu->headers->{$_};
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} for sort keys fu->headers->%*;
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};
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# TODO: Body? Certainly useful for JSON
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('Request')
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},
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res => sub {
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my $r = $FU::REQ;
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return () if !exists $r->{trace_end};
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table_ sub {
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tr_ sub { td_ 'Status'; td_ $r->{status} };
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tr_ sub {
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td_ 'Handler';
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td_ $r->{trace_han} ? sub {
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txt_ clean_re $r->{trace_han}[0];
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br_;
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loc_ $r->{trace_han}[1];
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} : 'N/A';
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};
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my $exn = $r->{trace_exn};
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tr_ sub {
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td_ 'Exception';
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td_ !defined $exn ? 'N/A' : ref $exn eq 'FU::err' ? sub {
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txt_ $exn->[0];
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txt_ " $exn->[1]" if $exn->[1] ne $exn->[0];
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br_;
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loc_ $exn->[2];
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} : $exn;
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};
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tr_ sub { td_ 'Timing'; td_ sprintf '%.1f ms', ($r->{trace_end}-$r->{trace_start})*1000 };
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};
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h2_ 'Headers';
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table_ sub {
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for my $k (sort keys $r->{reshdr}->%*) {
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my $v = $r->{reshdr}{$k};
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tr_ sub {
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td_ $k;
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td_ $_;
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} for !defined $v ? () : ref $v ? @$v : ($v);
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}
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};
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('Response')
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},
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sql => sub {
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return () if !$FU::REQ->{trace_sql};
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table_ sub {
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thead_ sub { tr_ sub {
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td_ class => 'num', 'Exec';
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td_ class => 'num', 'Prep';
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td_ class => 'num', 'Rows';
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td_ 'Query';
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} };
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tr_ sub {
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td_ class => 'num', sprintf '%.1f ms', $_->{exec_time}*1000;
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td_ class => 'num', !defined $_->{prepare_time} ? '-' : $_->{prepare_time} ? sprintf '%.1f ms', $_->{prepare_time}*1000 : 'cache';
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td_ class => 'num', $_->{nrows};
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td_ class => 'code', sub { fmtpre_ $_->{query} };
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# TODO: Params, both separate and interpolated
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} for $FU::REQ->{trace_sql}->@*;
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};
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('Queries', scalar $FU::REQ->{trace_sql}->@*)
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},
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fu => sub {
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return () if !keys fu->%*;
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# TODO: Contents of the 'fu' object
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('fu obj')
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},
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proc => sub {
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table_ sub {
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tr_ sub { td_ 'PID'; td_ $$ };
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tr_ sub { td_ 'NAME'; td_ $0 };
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tr_ sub { td_ 'ARGV'; td_ join ' ', @ARGV };
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tr_ sub { td_ 'USER'; td_ "$< / $>" };
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tr_ sub { td_ 'GROUP'; td_ "$( / $)" };
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tr_ sub { td_ 'OS'; td_ $^O };
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tr_ sub { td_ 'Perl'; td_ $^V };
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tr_ sub { td_ 'Up for'; td_ sprintf '%.3f seconds', time - $^T };
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};
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('Process')
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},
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env => sub {
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table_ sub {
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tr_ sub {
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td_ $_;
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td_ $ENV{$_};
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} for sort keys %ENV;
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};
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('Environment', scalar keys %ENV)
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},
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inc => sub {
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table_ sub {
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tr_ sub {
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td_ $_;
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td_ $INC{$_};
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} for sort keys %INC;
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};
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('Included files', scalar keys %INC)
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},
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han => sub {
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my $cnt = 0;
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my sub tbl_($title, $lst) {
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return if !@$lst;
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$cnt += @$lst;
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h2_ $title;
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table_ sub {
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tr_ sub {
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td_ clean_re $_->[0];
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td_ sub { loc_ $_->[1] };
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} for @$lst;
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};
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}
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for my $meth (qw/GET POST DELETE OPTIONS PUT PATCH QUERY/) {
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my($path, $re) = ($FU::path_routes{$meth}, $FU::re_routes{$meth});
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my @lst = (
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(map [$_, $path->{$_}[1]], $path ? sort keys %$path : ()),
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(map [$_->[0], $_->[2]], $re ? @$re : ())
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);
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tbl_ $meth, \@lst;
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}
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tbl_ before_request => [ map [$_, $FU::before_request[$_][1]], 0..$#FU::before_request ];
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tbl_ after_request => [ map [$_, $FU::after_request[$_][1]], 0..$#FU::after_request ];
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('Handlers', $cnt)
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},
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pgst => sub {
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return () if !$FU::DB;
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my $lst = eval { $FU::DB->q(
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'SELECT generic_plans + custom_plans, statement FROM pg_prepared_statements ORDER BY generic_plans + custom_plans DESC, statement'
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)->cache(0)->alla } || do { warn "Unable to collect prepared statement list: $@"; return () };
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return () if !@$lst;
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table_ sub {
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thead_ sub { tr_ sub {
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td_ 'Num';
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td_ 'Query';
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} };
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tr_ sub {
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td_ $_->[0];
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td_ class => 'code', sub { fmtpre_ $_->[1] };
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} for @$lst;
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};
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('Prepared statements', scalar @$lst)
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},
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);
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sub collect {
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my @t;
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for my ($id, $sub) (@tabs) {
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my($title, $num);
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my $html = fragment { ($title, $num) = $sub->() };
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push @t, { id => $id, title => $title, num => $num, html => $html } if $title;
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}
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\@t
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}
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sub framework_($data) {
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html_ sub {
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head_ sub {
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title_ 'FU Debugging Interface';
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meta_ name => 'viewport', content => 'width=device-width, initial-scale=1.0, user-scalable=yes';
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style_ type => 'text/css', <<~_;
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html { box-sizing: border-box; color: #000; background: #fff }
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*, *:before, *:after { box-sizing: inherit }
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* { margin: 0; padding: 0; font: inherit; color: inherit }
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body { display: grid; grid: 45px 400px / 220px auto; }
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header { grid-column: 1 / 3; grid-row: 1 / 2 }
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nav { grid-column: 1 / 2; grid-row: 2 / 3 }
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main { grid-column: 2 / 3; grid-row: 2 / 3 }
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header, nav { background: #eee }
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main { border-top: 2px solid #009; border-left: 2px solid #009 }
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nav { border-bottom: 2px solid #009 }
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header { display: flex; justify-content: space-between; padding: 10px }
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header h1 { font-size: 20px; font-weight: bold }
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header menu { list-style-type: none; display: flex; gap: 15px }
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body > input { display: none }
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nav { padding-top: 20px }
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nav menu { list-style-type: none }
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nav label { display: block; width: 100%; padding: 2px 10px; cursor: pointer; white-space: nowrap }
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nav label:hover { background-color: #fff }
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nav label span { float: right; font-size: 80% }
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main { padding: 10px 20px }
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main h2 { margin: 30px 0 5px -10px; font-size: 20px; font-weight: bold }
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main h2:first-child { margin-top: 0 }
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p, pre, table { margin: 5px 0 }
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pre, .code { font-family: monospace; white-space: pre }
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table { border-collapse: collapse }
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td { padding: 1px 10px 1px 0; font-size: 12px; vertical-align: top }
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tr:hover { background-color: #eee }
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thead { font-weight: bold }
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.num { text-align: right; white-space: nowrap }
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_
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style_ type => 'text/css', join "\n", map +(
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"#tab_$_:checked ~ nav menu li label[for=tab_$_] { background-color: #fff }",
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"#tab_$_:not(:checked) ~ main #tabc_$_ { display: none }",
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), map $_->{id}, @$data;
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};
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body_ sub {
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header_ sub {
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h1_ 'FU Debugging Interface';
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menu_ sub {
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li_ sub { a_ href => '?last', 'Last' };
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li_ sub { a_ href => '?cur', 'Current' };
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li_ sub { a_ href => '?', 'Listing' };
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};
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};
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input_ type => 'radio', name => 'tab', id => "tab_$_->{id}", checked => $_ eq $data->[0] ? 'checked' : undef for @$data;
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nav_ sub {
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menu_ sub {
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li_ sub {
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label_ for => "tab_$_->{id}", sub {
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txt_ $_->{title};
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span_ $_->{num} if defined $_->{num};
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}
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} for @$data;
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};
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} if @$data;
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main_ sub {
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div_ id => "tabc_$_->{id}", sub {
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h2_ $_->{title};
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lit_ $_->{html};
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} for @$data;
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};
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};
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};
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}
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sub listing {
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opendir my $dh, $FU::debug_info->{storage} or do {
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warn "Error opening '$FU::debug_info->{storage}': $!\n";
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return;
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};
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my @f;
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/^fu-([0-9a-f]{22})\.txt$/ && push @f, $1 while (readdir $dh);
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return [sort @f];
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}
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sub listing_ {
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my $lst = listing;
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return p_ 'Request logging disabled.' if !$FU::debug_info->{storage} || !$FU::debug_info->{history};
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return p_ 'No requests logged.' if !@$lst;
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table_ sub {
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tr_ sub {
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open my $fh, '<:utf8', "$FU::debug_info->{storage}/fu-$_.txt" or return;
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my($ts, $time, $status, $method, $uri) = split / /, scalar <$fh>, 5;
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td_ sub { a_ href => "?$_", $_ };
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td_ class => 'num', fmtts $ts;
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td_ class => 'num', sprintf '%.0f ms', $time*1000;
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td_ class => 'num', $status;
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td_ $method;
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td_ $uri;
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} for reverse @$lst;
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}
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}
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sub load($id) {
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open my $fn, '<', "$FU::debug_info->{storage}/fu-$id.txt" or fu->notfound;
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scalar <$fn>;
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local $/=undef;
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fu->set_body(scalar <$fn>);
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}
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sub render {
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my $q = fu->query;
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if (!$q) {
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fu->set_body(framework_ [{id => 'lst', title => 'Recent Requests', html => fragment \&listing_ }]);
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} elsif ($q eq 'cur') {
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fu->set_body(framework_ collect);
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} elsif ($q eq 'last') {
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my $lst = listing;
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fu->notfound if !@$lst;
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load $lst->[$#$lst];
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} elsif ($FU::debug_info->{storage} && $q =~ /^[0-9a-f]{22}$/) {
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load $q;
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} else {
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fu->notfound
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}
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}
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sub save {
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my $files = listing;
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unlink sprintf '%s/fu-%s.txt', $FU::debug_info->{storage}, shift @$files while @$files >= $FU::debug_info->{history};
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delete $FU::REQ->{txn};
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my $fn = "$FU::debug_info->{storage}/fu-$FU::REQ->{trace_id}.txt";
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open my $fh, '>', $fn or do {
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warn "Error opening '$fn': $!\n";
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return;
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};
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my $line = sprintf "%d %f %s %s %s\n",
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time, $FU::REQ->{trace_end} - $FU::REQ->{trace_start}, $FU::REQ->{status},
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fu->method, fu->path.(fu->query?'?'.fu->query:'');
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utf8::encode($line);
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print $fh $line;
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print $fh framework_ collect;
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}
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1;
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