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