File 0006-Limit-number-of-connected-sockets-from-unp... of Package kdeconnect-kde.16873

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File 0006-Limit-number-of-connected-sockets-from-unpaired-devi.patch of Package kdeconnect-kde.16873

From c9315f891de6248e70d6e09155d588f27570b661 Mon Sep 17 00:00:00 2001
From: Albert Vaca Cintora <albertvaka@gmail.com>
Date: Thu, 24 Sep 2020 17:13:34 +0200
Subject: [PATCH 6/9] Limit number of connected sockets from unpaired devices

Thanks Matthias Gerstner <mgerstner@suse.de> for reporting this.
---
 core/backends/lan/lanlinkprovider.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/core/backends/lan/lanlinkprovider.cpp b/core/backends/lan/lanlinkprovider.cpp
index c739e093..00e2c01b 100644
--- a/core/backends/lan/lanlinkprovider.cpp
+++ b/core/backends/lan/lanlinkprovider.cpp
@@ -46,6 +46,8 @@
 
 #define MIN_VERSION_WITH_SSL_SUPPORT 6
 
+static const int MAX_UNPAIRED_CONNECTIONS = 42;
+
 LanLinkProvider::LanLinkProvider(
         bool testMode,
         quint16 udpBroadcastPort,
@@ -545,6 +547,15 @@ void LanLinkProvider::addLink(const QString& deviceId, QSslSocket* socket, Netwo
         deviceLink->reset(socket, connectionOrigin);
     } else {
         deviceLink = new LanDeviceLink(deviceId, this, socket, connectionOrigin);
+        // Socket disconnection will now be handled by LanDeviceLink
+        disconnect(socket, &QAbstractSocket::disconnected, socket, &QObject::deleteLater);
+        bool isDeviceTrusted = KdeConnectConfig::instance().trustedDevices().contains(deviceId);
+        if (!isDeviceTrusted && m_links.size() > MAX_UNPAIRED_CONNECTIONS) {
+            qCWarning(KDECONNECT_CORE) << "Too many unpaired devices to remember them all. Ignoring " << deviceId;
+            socket->disconnectFromHost();
+            socket->deleteLater();
+            return;
+        }
         connect(deviceLink, &QObject::destroyed, this, &LanLinkProvider::deviceLinkDestroyed);
         m_links[deviceId] = deviceLink;
         if (m_pairingHandlers.contains(deviceId)) {
-- 
2.28.0

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File 0006-Limit-number-of-connected-sockets-from-unpaired-devi.patch of Package kdeconnect-kde.16873

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