File 0001-IMAP-Resource-handle-disconnection-before-initial-OK.patch of Package kdepim-runtime

From 0398439f3307e54dba29d8abf7f334d09130193d Mon Sep 17 00:00:00 2001
From: David Faure <faure@kde.org>
Date: Sat, 21 Apr 2018 18:18:48 +0200
Subject: [PATCH 1/2] IMAP Resource: handle disconnection before initial "OK"
 from server

1b79b4b in kimap makes connectionLost useful again, as the best way
to detect that we managed to connect (so the server actually exists and
is (or was) reachable) and then lost connection. Use that instead of the
state change to distinguish from the wrong hostname case (where we don't want to
retry, we'd loop forever doing that).

Test Plan: Expand existing unittest to test 3 different cases of connection lost,
all after the initial connect. The next method (shouldNotifyFailureToConnect)
ensures that the "wrong hostname" case still works.

Differential Revision: https://phabricator.kde.org/D12418
---
 resources/imap/autotests/testsessionpool.cpp | 12 ++++++++++++
 resources/imap/sessionpool.cpp               | 15 ++++-----------
 resources/imap/sessionpool.h                 |  1 -
 3 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/resources/imap/sessionpool.cpp b/resources/imap/sessionpool.cpp
index e6badaf63..cab732eb6 100644
--- a/resources/imap/sessionpool.cpp
+++ b/resources/imap/sessionpool.cpp
@@ -202,8 +202,8 @@ void SessionPool::killSession(KIMAP::Session *session, SessionTermination termin
         Q_ASSERT(false);
         return;
     }
-    QObject::disconnect(session, &KIMAP::Session::stateChanged,
-                        this, &SessionPool::onSessionStateChanged);
+    QObject::disconnect(session, &KIMAP::Session::connectionLost,
+                        this, &SessionPool::onConnectionLost);
     m_unusedPool.removeAll(session);
     m_reservedPool.removeAll(session);
     m_connectingPool.removeAll(session);
@@ -372,8 +372,8 @@ void SessionPool::onPasswordRequestDone(int resultType, const QString &password)
         m_connectingPool << session;
     }
 
-    QObject::connect(session, &KIMAP::Session::stateChanged,
-                     this, &SessionPool::onSessionStateChanged);
+    QObject::connect(session, &KIMAP::Session::connectionLost,
+                     this, &SessionPool::onConnectionLost);
 
     KIMAP::LoginJob *loginJob = new KIMAP::LoginJob(session);
     loginJob->setUserName(m_account->userName());
@@ -546,13 +546,6 @@ void SessionPool::onIdDone(KJob *job)
     declareSessionReady(idJob->session());
 }
 
-void SessionPool::onSessionStateChanged(KIMAP::Session::State newState, KIMAP::Session::State oldState)
-{
-    if (newState == KIMAP::Session::Disconnected && oldState != KIMAP::Session::Disconnected) {
-        onConnectionLost();
-    }
-}
-
 void SessionPool::onConnectionLost()
 {
     KIMAP::Session *session = static_cast<KIMAP::Session *>(sender());
diff --git a/resources/imap/sessionpool.h b/resources/imap/sessionpool.h
index 4daa1477e..fc376551c 100644
--- a/resources/imap/sessionpool.h
+++ b/resources/imap/sessionpool.h
@@ -106,7 +106,6 @@ private Q_SLOTS:
     void onNamespacesTestDone(KJob *job);
     void onIdDone(KJob *job);
 
-    void onSessionStateChanged(KIMAP::Session::State newState, KIMAP::Session::State oldState);
     void onSessionDestroyed(QObject *);
 
 private:
-- 
2.16.3