File 0008-remove-AUTH-entries-put-LOGINDISABLED-if-w... of Package guam

File 0008-remove-AUTH-entries-put-LOGINDISABLED-if-we-put-up-a.patch of Package guam (Revision 23)

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From 4cb9fd2e94f7746e5ec05f0cd3c1c7cca895efa3 Mon Sep 17 00:00:00 2001
From: Aaron Seigo <aseigo@kde.org>
Date: Fri, 1 Jul 2016 13:16:16 +0200
Subject: [PATCH 8/8] remove AUTH= entries, put LOGINDISABLED if we put up a
 STARTTLS

---
 apps/kolab_guam/src/kolab_guam_session.erl | 28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/apps/kolab_guam/src/kolab_guam_session.erl b/apps/kolab_guam/src/kolab_guam_session.erl
index fb9c72b..79114b1 100644
--- a/apps/kolab_guam/src/kolab_guam_session.erl
+++ b/apps/kolab_guam/src/kolab_guam_session.erl
@@ -305,7 +305,8 @@ add_starttls_to_capabilities(ServerHello) ->
         { Start, End } ->
             Prefix = binary:part(ServerHello, 0, Start + End),
             Suffix = binary:part(ServerHello, Start + End, size(ServerHello) - Start - End),
-            <<Prefix/binary, "STARTTLS ", Suffix/binary>>
+            CorrectHello = <<Prefix/binary, "STARTTLS ", Suffix/binary>>,
+            remove_auth_offers(CorrectHello)
     end.
 
 add_starttls_after_imap4_atom(ServerHello) ->
@@ -314,7 +315,8 @@ add_starttls_after_imap4_atom(ServerHello) ->
         { Start, End } ->
             Prefix = binary:part(ServerHello, 0, Start + End),
             Suffix = binary:part(ServerHello, Start + End, size(ServerHello) - Start - End),
-            <<Prefix/binary, "STARTTLS ", Suffix/binary>>
+            CorrectHello = <<Prefix/binary, "STARTTLS ", Suffix/binary>>,
+            remove_auth_offers(CorrectHello)
     end.
 
 ensure_hello_does_not_have_starttls(ServerResponse) ->
@@ -327,3 +329,25 @@ ensure_hello_does_not_have_starttls(ServerResponse) ->
             <<Prefix/binary, Suffix/binary>>
     end.
 
+remove_auth_offers(ServerHello) ->
+    case binary:match(ServerHello, <<"AUTH=">>) of
+        nomatch -> ensure_advertise_login_disabled(ServerHello);
+        { Start, End } ->
+            Prefix = binary:part(ServerHello, 0, Start),
+            Suffix =
+            case binary:match(ServerHello, <<" ">>, [{ scope, { Start, size(ServerHello) - Start } }]) of
+                nomatch ->
+                    %% end of the line, so no suffix
+                    <<>>;
+                { SpaceStart, SpaceEnd } ->
+                    binary:part(ServerHello, SpaceStart + SpaceEnd, size(ServerHello) - SpaceStart - SpaceEnd)
+            end,
+            remove_auth_offers(<<Prefix/binary, Suffix/binary>>)
+    end.
+
+ensure_advertise_login_disabled(ServerHello) ->
+    case binary:match(ServerHello, <<"LOGINDISABLED">>) of
+        nomatch -> <<ServerHello/binary, " LOGINDISABLED">>;
+        _ -> ServerHello
+    end.
+
-- 
2.5.5