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　晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 . Prv8 Shell

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Directory : /proc/thread-self/root/usr/share/perl5/vendor_perl/CPAN/HTTP/

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Current File : //proc/thread-self/root/usr/share/perl5/vendor_perl/CPAN/HTTP/Credentials.pm

# -*- Mode: cperl; coding: utf-8; cperl-indent-level: 4 -*-
# vim: ts=4 sts=4 sw=4:
package CPAN::HTTP::Credentials;
use strict;
use vars qw($USER $PASSWORD $PROXY_USER $PROXY_PASSWORD);

$CPAN::HTTP::Credentials::VERSION = $CPAN::HTTP::Credentials::VERSION = "1.9601";

sub clear_credentials {
   clear_non_proxy_credentials();
   clear_proxy_credentials();
}

sub clear_non_proxy_credentials {
    undef $USER;
    undef $PASSWORD;
}

sub clear_proxy_credentials {
    undef $PROXY_USER;
    undef $PROXY_PASSWORD;
}

sub get_proxy_credentials {
    my $self = shift;
    if ($PROXY_USER && $PROXY_PASSWORD) {
        return ($PROXY_USER, $PROXY_PASSWORD);
    }
    if ( defined $CPAN::Config->{proxy_user}
            && $CPAN::Config->{proxy_user}
    ) {
        $PROXY_USER = $CPAN::Config->{proxy_user};
        $PROXY_PASSWORD = $CPAN::Config->{proxy_pass} || "";
        return ($PROXY_USER, $PROXY_PASSWORD);
    }
    my $username_prompt = "\nProxy authentication needed!
 (Note: to permanently configure username and password run
   o conf proxy_user your_username
   o conf proxy_pass your_password
     )\nUsername:";
    ($PROXY_USER, $PROXY_PASSWORD) =
        _get_username_and_password_from_user($username_prompt);
    return ($PROXY_USER,$PROXY_PASSWORD);
}

sub get_non_proxy_credentials {
    my $self = shift;
    if ($USER && $PASSWORD) {
        return ($USER, $PASSWORD);
    }
    if ( defined $CPAN::Config->{username} ) {
        $USER = $CPAN::Config->{username};
        $PASSWORD = $CPAN::Config->{password} || "";
        return ($USER, $PASSWORD);
    }
    my $username_prompt = "\nAuthentication needed!
     (Note: to permanently configure username and password run
       o conf username your_username
       o conf password your_password
     )\nUsername:";

    ($USER, $PASSWORD) =
        _get_username_and_password_from_user($username_prompt);
    return ($USER,$PASSWORD);
}

sub _get_username_and_password_from_user {
    my $username_message = shift;
    my ($username,$password);

    ExtUtils::MakeMaker->import(qw(prompt));
    $username = prompt($username_message);
        if ($CPAN::META->has_inst("Term::ReadKey")) {
            Term::ReadKey::ReadMode("noecho");
        }
    else {
        $CPAN::Frontend->mywarn(
            "Warning: Term::ReadKey seems not to be available, your password will be echoed to the terminal!\n"
        );
    }
    $password = prompt("Password:");

        if ($CPAN::META->has_inst("Term::ReadKey")) {
            Term::ReadKey::ReadMode("restore");
        }
        $CPAN::Frontend->myprint("\n\n");
    return ($username,$password);
}

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