1 files changed, 135 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/CPAN/LWP/UserAgent.pm b/Master/tlpkg/tlperl/lib/CPAN/LWP/UserAgent.pm
new file mode 100644
index 00000000000..7bb86f9a15d
--- /dev/null
+++ b/Master/tlpkg/tlperl/lib/CPAN/LWP/UserAgent.pm
@@ -0,0 +1,135 @@
+# -*- Mode: cperl; coding: utf-8; cperl-indent-level: 4 -*-
+# vim: ts=4 sts=4 sw=4:
+package CPAN::LWP::UserAgent;
+use strict;
+use vars qw(@ISA $USER $PASSWD $SETUPDONE);
+# we delay requiring LWP::UserAgent and setting up inheritance until we need it
+
+$CPAN::LWP::UserAgent::VERSION = $CPAN::LWP::UserAgent::VERSION = "1.94";
+
+sub config {
+    return if $SETUPDONE;
+    if ($CPAN::META->has_usable('LWP::UserAgent')) {
+        require LWP::UserAgent;
+        @ISA = qw(Exporter LWP::UserAgent); ## no critic
+        $SETUPDONE++;
+    } else {
+        $CPAN::Frontend->mywarn("  LWP::UserAgent not available\n");
+    }
+}
+
+sub get_basic_credentials {
+    my($self, $realm, $uri, $proxy) = @_;
+    if ($USER && $PASSWD) {
+        return ($USER, $PASSWD);
+    }
+    if ( $proxy ) {
+        ($USER,$PASSWD) = $self->get_proxy_credentials();
+    } else {
+        ($USER,$PASSWD) = $self->get_non_proxy_credentials();
+    }
+    return($USER,$PASSWD);
+}
+
+sub get_proxy_credentials {
+    my $self = shift;
+    my ($user, $password);
+    if ( defined $CPAN::Config->{proxy_user} ) {
+        $user = $CPAN::Config->{proxy_user};
+        $password = $CPAN::Config->{proxy_pass} || "";
+        return ($user, $password);
+    }
+    my $username_prompt = "\nProxy authentication needed!
+ (Note: to permanently configure username and password run
+   o conf proxy_user your_username
+   o conf proxy_pass your_password
+     )\nUsername:";
+    ($user, $password) =
+        _get_username_and_password_from_user($username_prompt);
+    return ($user,$password);
+}
+
+sub get_non_proxy_credentials {
+    my $self = shift;
+    my ($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);
+}
+
+# mirror(): Its purpose is to deal with proxy authentication. When we
+# call SUPER::mirror, we relly call the mirror method in
+# LWP::UserAgent. LWP::UserAgent will then call
+# $self->get_basic_credentials or some equivalent and this will be
+# $self->dispatched to our own get_basic_credentials method.
+
+# Our own get_basic_credentials sets $USER and $PASSWD, two globals.
+
+# 407 stands for HTTP_PROXY_AUTHENTICATION_REQUIRED. Which means
+# although we have gone through our get_basic_credentials, the proxy
+# server refuses to connect. This could be a case where the username or
+# password has changed in the meantime, so I'm trying once again without
+# $USER and $PASSWD to give the get_basic_credentials routine another
+# chance to set $USER and $PASSWD.
+
+# mirror(): Its purpose is to deal with proxy authentication. When we
+# call SUPER::mirror, we relly call the mirror method in
+# LWP::UserAgent. LWP::UserAgent will then call
+# $self->get_basic_credentials or some equivalent and this will be
+# $self->dispatched to our own get_basic_credentials method.
+
+# Our own get_basic_credentials sets $USER and $PASSWD, two globals.
+
+# 407 stands for HTTP_PROXY_AUTHENTICATION_REQUIRED. Which means
+# although we have gone through our get_basic_credentials, the proxy
+# server refuses to connect. This could be a case where the username or
+# password has changed in the meantime, so I'm trying once again without
+# $USER and $PASSWD to give the get_basic_credentials routine another
+# chance to set $USER and $PASSWD.
+
+sub mirror {
+    my($self,$url,$aslocal) = @_;
+    my $result = $self->SUPER::mirror($url,$aslocal);
+    if ($result->code == 407) {
+        undef $USER;
+        undef $PASSWD;
+        $result = $self->SUPER::mirror($url,$aslocal);
+    }
+    $result;
+}
+
+1;