Backport patch Support "proxy=_none_" in main config

Resolves: rhbz#2155713

0045-conf-Support-proxy-_none_-in-main-config-RhBug-21557.patch

@@ -0,0 +1,47 @@
+From a5fe0e0eb6457ca51fabe8123d7407951cb8fcba Mon Sep 17 00:00:00 2001
+From: Jaroslav Rohel <jrohel@redhat.com>
+Date: Wed, 24 May 2023 12:35:29 +0200
+Subject: [PATCH] conf: Support "proxy=_none_" in main config (RhBug:2155713)
+
+It has the same meaning as "proxy=". Introduced for compatibility with yum.
+Yum does not support a proxy option with an empty value. Instead, it has
+the special value "_none_". The value "_none_" is case insensitive.
+
+Support for "proxy=_none_" in the repository configuration was added some
+time ago - in commit ea749e6238cdb54fe3b5add67875ab5912d2e766
+
+= changelog =
+msg: Support "proxy=_none_" in main config
+type: enhancement
+resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2155713
+---
+ libdnf/conf/ConfigMain.cpp | 13 ++++++++++++-
+ 1 file changed, 12 insertions(+), 1 deletion(-)
+
+diff --git a/libdnf/conf/ConfigMain.cpp b/libdnf/conf/ConfigMain.cpp
+index a6645d70..a775cf8c 100644
+--- a/libdnf/conf/ConfigMain.cpp
++++ b/libdnf/conf/ConfigMain.cpp
+@@ -476,7 +476,18 @@ ConfigMain::Impl::Impl(Config & owner)
+         }, nullptr, true
+     );
+ 
+-    owner.optBinds().add("proxy", proxy);
++    owner.optBinds().add("proxy", proxy,
++        [&](Option::Priority priority, const std::string & value){
++            auto tmpValue(value);
++            for (auto & ch : tmpValue)
++                ch = std::tolower(ch);
++            if (tmpValue == "_none_")
++                proxy.set(priority, "");
++            else
++                proxy.set(priority, value);
++        }, nullptr, false
++    );
++
+     owner.optBinds().add("proxy_username", proxy_username);
+     owner.optBinds().add("proxy_password", proxy_password);
+     owner.optBinds().add("proxy_auth_method", proxy_auth_method);
+-- 
+2.40.1
+

libdnf.spec

@@ -56,7 +56,7 @@
 
 Name:           libdnf
 Version:        %{libdnf_major_version}.%{libdnf_minor_version}.%{libdnf_micro_version}
-Release:        15%{?dist}
+Release:        16%{?dist}
 Summary:        Library providing simplified C and Python API to libsolv
 License:        LGPLv2+
 URL:            https://github.com/rpm-software-management/libdnf
@@ -105,6 +105,7 @@ Patch41:        0041-Fix-listing-a-repository-without-cpeid-RhBug-2066334.patch
 Patch42:        0042-Allow-change-of-arch-during-security-updates-with-no.patch
 Patch43:        0043-Update-translations.patch
 Patch44:        0044-Add_repoid_to_solver_error_messagase.patch
+Patch45:        0045-conf-Support-proxy-_none_-in-main-config-RhBug-21557.patch
 
 
 BuildRequires:  cmake
@@ -350,6 +351,9 @@ popd
 %endif
 
 %changelog
+* Wed May 31 2023 Nicola Sella <nsella@redhat.com> - 0.63-0-16
+- Support "proxy=_none_" in main config (RhBug:2155713)
+
 * Wed May 17 2023 Jaroslav Rohel <jrohel@redhat.com> - 0.63.0-15
 - Add repoid to solver error messages (RhBug:2179409,2179413)