Oleg G

NAME

Net::HTTPS::NB - Non-blocking HTTPS client

SYNOPSIS

Example from Net::HTTP::NB
        use Net::HTTPS::NB;
        use IO::Select;
        use strict;

        my $s = Net::HTTPS::NB->new(Host => "pause.perl.org") || die $@;
        $s->write_request(GET => "/");

        my $sel = IO::Select->new($s);

        READ_HEADER: {
                die "Header timeout" unless $sel->can_read(10);
                my($code, $mess, %h) = $s->read_response_headers;
                redo READ_HEADER unless $code;
        }

        while (1) {
                die "Body timeout" unless $sel->can_read(10);
                my $buf;
                my $n = $s->read_entity_body($buf, 1024);
                last unless $n;
                print $buf;
        }
Example of non-blocking connect
        use strict;
        use Net::HTTPS::NB;
        use IO::Select;

        my $sock = Net::HTTPS::NB->new(Host => 'encrypted.google.com', Blocking => 0);
        my $sele = IO::Select->new($sock);

        until ($sock->connected) {
                if ($HTTPS_ERROR == HTTPS_WANT_READ) {
                        $sele->can_read();
                }
                elsif($HTTPS_ERROR == HTTPS_WANT_WRITE) {
                        $sele->can_write();
                }
                else {
                        die 'Unknown error: ', $HTTPS_ERROR;
                }
        }

See `examples' subdirectory for more examples.

DESCRIPTION

Same interface as Net::HTTPS but it will never try multiple reads when the read_response_headers() or read_entity_body() methods are invoked. In addition allows non-blocking connect.

If read_response_headers() did not see enough data to complete the headers an empty list is returned.
If read_entity_body() did not see new entity data in its read the value -1 is returned.

PACKAGE CONSTANTS

Imported by default

        HTTPS_WANT_READ
        HTTPS_WANT_WRITE

PACKAGE VARIABLES

Imported by default

        $HTTPS_ERROR

METHODS

new(%cfg)

Same as Net::HTTPS::new, but in addition allows `Blocking' parameter. By setting this parameter to 0 you can perform non-blocking connect. See connected() to determine when connection completed.

connected()

Returns true value when connection completed (https handshake done). Otherwise returns false. In this case you can check $HTTPS_ERROR to determine what handshake need for, read or write. $HTTPS_ERROR could be HTTPS_WANT_READ or HTTPS_WANT_WRITE respectively. See "SYNOPSIS".

blocking($flag)

As opposed to Net::HTTPS where blocking method consciously broken you can set socket blocking. For example you can return socket to blocking state after non-blocking connect.

SEE ALSO

Net::HTTP, Net::HTTP::NB

COPYRIGHT

Copyright 2011-2013 Oleg G <oleg@cpan.org>.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.




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