libperlbal-perl 1.80-2 / usr / share / perl5 / Perlbal / ClientManage.pm

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/usr/share/perl5/Perlbal/ClientManage.pm is in libperlbal-perl 1.80-2.

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The actual contents of the file can be viewed below. 

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######################################################################
# Management connection from a client
######################################################################

package Perlbal::ClientManage;
use strict;
use warnings;
no  warnings qw(deprecated);

use base "Perlbal::Socket";
use fields ('service',
            'buf',
            'is_http',  # bool: is an HTTP request?
            'ctx',      # command context
            );

# ClientManage
sub new {
    my Perlbal::ClientManage $self = shift;
    my ($service, $sock) = @_;
    $self = fields::new($self) unless ref $self;
    $self->SUPER::new($sock);
    $self->{service} = $service;
    $self->{buf} = "";   # what we've read so far, not forming a complete line

    $self->{ctx} = Perlbal::CommandContext->new;
    $self->{ctx}->verbose(1);

    $self->watch_read(1);
    return $self;
}

# ClientManage
sub event_read {
    my Perlbal::ClientManage $self = shift;

    my $bref;
    unless ($self->{is_http}) {
        $bref = $self->read(1024);
        return $self->close() unless defined $bref;
        $self->{buf} .= $$bref;

        if ($self->{buf} =~ /^(?:HEAD|GET|POST) /) {
            $self->{is_http} = 1;
            $self->{headers_string} .= $$bref;
        }
    }

    if ($self->{is_http}) {
        my $hd = $self->read_request_headers;
        return unless $hd;
        $self->handle_http();
        return;
    }

    while ($self->{buf} =~ s/^(.+?)\r?\n//) {
        my $line = $1;

        if ($line =~ /^quit|exit$/) {
            $self->close('user_requested_quit');
            return;
        }

        my $out = sub {
            $self->write("$_[0]\r\n");
        };

        Perlbal::run_manage_command($line, $out, $self->{ctx});
    }
}

sub event_write {
    my $self = shift;
    $self->watch_write(0) if $self->write(undef);
}

# ClientManage
sub event_err {  my $self = shift; $self->close; }
sub event_hup {  my $self = shift; $self->close; }

# HTTP management support
sub handle_http {
    my Perlbal::ClientManage $self = shift;

    my $uri = $self->{req_headers}->request_uri;

    my $body;
    my $code = "200 OK";

    my $prebox = sub {
        my $cmd = shift;
        my $alt = shift;
        $body .= "<pre><div style='margin-bottom: 5px; background: #ddd'><b>$cmd</b></div>";
        Perlbal::run_manage_command($cmd, sub {
            my $line = $_[0] || "";
            $alt->(\$line) if $alt;
            $body .= "$line\n";
        });
        $body .= "</pre>\n";

    };

    $body .= "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n";
    $body .= "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en-ZA\">\n";
    $body .= "<head><title>perlbal management interface</title><meta name=\"generator\" content=\"perlbal\" /></head><body>";

    if ($uri eq "/") {
        $body .= "<h1>perlbal management interface</h1><ul>";
        $body .= "<li><a href='/socks'>Sockets</a></li>";
        $body .= "<li><a href='/obj'>Perl Objects in use</a></li>";
        $body .= "<li>Service Details<ul>";
        foreach my $sname (Perlbal->service_names) {
            my Perlbal::Service $svc = Perlbal->service($sname);
            next unless $svc;
            my $listen = $svc->{listen} ? " ($svc->{listen})" : "";
            $body .= "<li><a href='/service?$sname'>$sname</a> - $svc->{role}$listen</li>\n";
        }
        $body .= "</ul></li>";
        $body .= "</ul>";
    } elsif ($uri eq "/socks") {
        $prebox->('socks summary');

        $prebox->('socks', sub {
            ${$_[0]} =~ s!service \'(\w+)\'!<a href=\"/service?$1\">$1</a>!;
        });
    } elsif ($uri eq "/obj") {
        $prebox->('obj');
    } elsif ($uri =~ m!^/service\?(\w+)$!) {
        my $service = $1;
        $prebox->("show service $service");
    } else {
        $code = "404 Not found";
        $body .= "<h1>$code</h1>";
    }

    $body .= "<hr style='margin-top: 10px' /><p><a href='/'>Perlbal management</a>.</p></body></html>\n";
    $self->write("HTTP/1.0 $code\r\nContent-type: text/html\r\nContent-Length: " . length($body) .
                 "\r\n\r\n$body");
    $self->write(sub { $self->close; });
    return;
}

1;


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