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/*
* Copyright (C) by Olivier Goffart <ogoffart@owncloud.com>
* Copyright (C) by Klaas Freitag <freitag@owncloud.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#pragma once
#include "owncloudpropagator.h"
#include "syncfileitem.h"
#include <QLoggingCategory>
#include <QNetworkReply>
namespace OCC {
inline QByteArray parseEtag(const char *header)
{
if (!header)
return QByteArray();
QByteArray arr = header;
// Weak E-Tags can appear when gzip compression is on, see #3946
if (arr.startsWith("W/"))
arr = arr.mid(2);
// https://github.com/owncloud/client/issues/1195
arr.replace("-gzip", "");
if (arr.length() >= 2 && arr.startsWith('"') && arr.endsWith('"')) {
arr = arr.mid(1, arr.length() - 2);
}
return arr;
}
inline QByteArray getEtagFromReply(QNetworkReply *reply)
{
QByteArray ocEtag = parseEtag(reply->rawHeader("OC-ETag"));
QByteArray etag = parseEtag(reply->rawHeader("ETag"));
QByteArray ret = ocEtag;
if (ret.isEmpty()) {
ret = etag;
}
if (ocEtag.length() > 0 && ocEtag != etag) {
qCDebug(lcPropagator) << "Quite peculiar, we have an etag != OC-Etag [no problem!]" << etag << ocEtag;
}
return ret;
}
/**
* Given an error from the network, map to a SyncFileItem::Status error
*/
inline SyncFileItem::Status classifyError(QNetworkReply::NetworkError nerror,
int httpCode,
bool *anotherSyncNeeded = nullptr)
{
Q_ASSERT(nerror != QNetworkReply::NoError); // we should only be called when there is an error
if (nerror == QNetworkReply::RemoteHostClosedError) {
// Sometimes server bugs lead to a connection close on certain files,
// that shouldn't bring the rest of the syncing to a halt.
return SyncFileItem::NormalError;
}
if (nerror > QNetworkReply::NoError && nerror <= QNetworkReply::UnknownProxyError) {
// network error or proxy error -> fatal
return SyncFileItem::FatalError;
}
if (httpCode == 503) {
// "Service unavailable"
// Happens for maintenance mode and other temporary outages
return SyncFileItem::FatalError;
}
if (httpCode == 412) {
// "Precondition Failed"
// Happens when the e-tag has changed
return SyncFileItem::SoftError;
}
if (httpCode == 423) {
// "Locked"
// Should be temporary.
if (anotherSyncNeeded) {
*anotherSyncNeeded = true;
}
return SyncFileItem::SoftError;
}
return SyncFileItem::NormalError;
}
}
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