From 4bab0f2ef2c68b478d669f90557d6bef6332e823 Mon Sep 17 00:00:00 2001
From: Tobias Fella <fella@posteo.de>
Date: Tue, 31 Aug 2021 21:47:10 +0200
Subject: Implement the mxc protocol in the NetworkAccessManager

Allows images to be loaded using the NetworkAccessManager instead of an
ImageProvider
---
 lib/networkaccessmanager.cpp | 56 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

(limited to 'lib/networkaccessmanager.cpp')

diff --git a/lib/networkaccessmanager.cpp b/lib/networkaccessmanager.cpp
index a94ead34..e4132957 100644
--- a/lib/networkaccessmanager.cpp
+++ b/lib/networkaccessmanager.cpp
@@ -5,6 +5,11 @@
 
 #include <QtCore/QCoreApplication>
 #include <QtNetwork/QNetworkReply>
+#include "accountregistry.h"
+#include "mxcreply.h"
+#include "connection.h"
+
+#include "room.h"
 
 using namespace Quotient;
 
@@ -56,7 +61,58 @@ NetworkAccessManager::~NetworkAccessManager() = default;
 QNetworkReply* NetworkAccessManager::createRequest(
     Operation op, const QNetworkRequest& request, QIODevice* outgoingData)
 {
+    if(request.url().scheme() == QStringLiteral("mxc")) {
+        const auto fragment = request.url().fragment();
+        const auto fragmentParts = fragment.split(QLatin1Char('/'));
+        const auto mediaId = request.url().toString(QUrl::RemoveScheme | QUrl::RemoveFragment);
+        if(fragmentParts.size() == 3) {
+            auto connection = AccountRegistry::instance().get(fragmentParts[0]);
+            if(!connection) {
+                qWarning() << "Connection not found";
+                return nullptr;
+            }
+            auto room = connection->room(fragmentParts[1]);
+            if(!room) {
+                qWarning() << "Room not found";
+                return nullptr;
+            }
+            QNetworkRequest r(request);
+            r.setUrl(QUrl(QStringLiteral("%1/_matrix/media/r0/download/%2").arg(connection->homeserver().toString(), mediaId)));
+            auto reply = createRequest(QNetworkAccessManager::GetOperation, r);
+            return new MxcReply(reply, room, fragmentParts[2]);
+        } else if(fragmentParts.size() == 1) {
+            auto connection = AccountRegistry::instance().get(fragment);
+            if(!connection) {
+                qWarning() << "Connection not found";
+                return nullptr;
+            }
+            QNetworkRequest r(request);
+            r.setUrl(QUrl(QStringLiteral("%1/_matrix/media/r0/download/%2").arg(connection->homeserver().toString(), mediaId)));
+            auto reply = createRequest(QNetworkAccessManager::GetOperation, r);
+            return new MxcReply(reply);
+        } else {
+            qWarning() << "Invalid request";
+            return nullptr;
+        }
+    }
     auto reply = QNetworkAccessManager::createRequest(op, request, outgoingData);
     reply->ignoreSslErrors(d->ignoredSslErrors);
     return reply;
 }
+
+QStringList NetworkAccessManager::supportedSchemesImplementation() const
+{
+    auto schemes = QNetworkAccessManager::supportedSchemesImplementation();
+    schemes += QStringLiteral("mxc");
+    return schemes;
+}
+
+QUrl NetworkAccessManager::urlForRoomEvent(Room *room, const QString &eventId, const QString &mediaId)
+{
+    return QUrl(QStringLiteral("mxc:%1#%2/%3/%4").arg(mediaId, room->connection()->userId(), room->id(), eventId));
+}
+
+QUrl NetworkAccessManager::urlForFile(Connection *connection, const QString &mediaId)
+{
+    return QUrl(QStringLiteral("mxc:%1#%2").arg(mediaId, connection->userId()));
+}
\ No newline at end of file
-- 
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