Reformat and (slightly) decruft all the things.
This commit is contained in:
@ -1,3 +1,18 @@
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/* Copyright 2013 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "MultiMC.h"
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#include "HttpMetaCache.h"
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#include <pathutils.h>
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@ -9,7 +24,7 @@
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#include <QDateTime>
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#include <QCryptographicHash>
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#include <logger/QsLog.h>
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#include "logger/QsLog.h"
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#include <QJsonDocument>
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#include <QJsonArray>
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@ -20,14 +35,12 @@ QString MetaEntry::getFullPath()
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return PathCombine(MMC->metacache()->getBasePath(base), path);
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}
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HttpMetaCache::HttpMetaCache(QString path)
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:QObject()
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HttpMetaCache::HttpMetaCache(QString path) : QObject()
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{
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m_index_file = path;
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saveBatchingTimer.setSingleShot(true);
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saveBatchingTimer.setTimerType(Qt::VeryCoarseTimer);
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connect(&saveBatchingTimer,SIGNAL(timeout()),SLOT(SaveNow()));
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connect(&saveBatchingTimer, SIGNAL(timeout()), SLOT(SaveNow()));
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}
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HttpMetaCache::~HttpMetaCache()
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@ -36,58 +49,61 @@ HttpMetaCache::~HttpMetaCache()
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SaveNow();
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}
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MetaEntryPtr HttpMetaCache::getEntry ( QString base, QString resource_path )
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MetaEntryPtr HttpMetaCache::getEntry(QString base, QString resource_path)
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{
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// no base. no base path. can't store
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if(!m_entries.contains(base))
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if (!m_entries.contains(base))
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{
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// TODO: log problem
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return MetaEntryPtr();
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}
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EntryMap & map = m_entries[base];
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if(map.entry_list.contains(resource_path))
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EntryMap &map = m_entries[base];
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if (map.entry_list.contains(resource_path))
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{
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return map.entry_list[resource_path];
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}
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return MetaEntryPtr();
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}
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MetaEntryPtr HttpMetaCache::resolveEntry ( QString base, QString resource_path, QString expected_etag )
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MetaEntryPtr HttpMetaCache::resolveEntry(QString base, QString resource_path,
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QString expected_etag)
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{
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auto entry = getEntry(base, resource_path);
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// it's not present? generate a default stale entry
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if(!entry)
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if (!entry)
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{
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return staleEntry(base, resource_path);
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}
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auto & selected_base = m_entries[base];
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auto &selected_base = m_entries[base];
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QString real_path = PathCombine(selected_base.base_path, resource_path);
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QFileInfo finfo(real_path);
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// is the file really there? if not -> stale
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if(!finfo.isFile() || !finfo.isReadable())
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if (!finfo.isFile() || !finfo.isReadable())
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{
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// if the file doesn't exist, we disown the entry
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selected_base.entry_list.remove(resource_path);
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return staleEntry(base, resource_path);
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}
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if(!expected_etag.isEmpty() && expected_etag != entry->etag)
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if (!expected_etag.isEmpty() && expected_etag != entry->etag)
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{
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// if the etag doesn't match expected, we disown the entry
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selected_base.entry_list.remove(resource_path);
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return staleEntry(base, resource_path);
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}
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// if the file changed, check md5sum
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qint64 file_last_changed = finfo.lastModified().toUTC().toMSecsSinceEpoch();
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if(file_last_changed != entry->local_changed_timestamp)
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if (file_last_changed != entry->local_changed_timestamp)
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{
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QFile input(real_path);
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input.open(QIODevice::ReadOnly);
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QString md5sum = QCryptographicHash::hash(input.readAll(), QCryptographicHash::Md5).toHex().constData();
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if(entry->md5sum != md5sum)
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QString md5sum = QCryptographicHash::hash(input.readAll(), QCryptographicHash::Md5)
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.toHex()
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.constData();
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if (entry->md5sum != md5sum)
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{
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selected_base.entry_list.remove(resource_path);
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return staleEntry(base, resource_path);
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@ -101,14 +117,15 @@ MetaEntryPtr HttpMetaCache::resolveEntry ( QString base, QString resource_path,
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return entry;
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}
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bool HttpMetaCache::updateEntry ( MetaEntryPtr stale_entry )
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bool HttpMetaCache::updateEntry(MetaEntryPtr stale_entry)
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{
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if(!m_entries.contains(stale_entry->base))
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if (!m_entries.contains(stale_entry->base))
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{
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QLOG_ERROR() << "Cannot add entry with unknown base: " << stale_entry->base.toLocal8Bit();
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QLOG_ERROR() << "Cannot add entry with unknown base: "
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<< stale_entry->base.toLocal8Bit();
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return false;
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}
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if(stale_entry->stale)
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if (stale_entry->stale)
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{
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QLOG_ERROR() << "Cannot add stale entry: " << stale_entry->getFullPath().toLocal8Bit();
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return false;
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@ -127,10 +144,10 @@ MetaEntryPtr HttpMetaCache::staleEntry(QString base, QString resource_path)
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return MetaEntryPtr(foo);
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}
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void HttpMetaCache::addBase ( QString base, QString base_root )
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void HttpMetaCache::addBase(QString base, QString base_root)
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{
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// TODO: report error
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if(m_entries.contains(base))
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if (m_entries.contains(base))
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return;
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// TODO: check if the base path is valid
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EntryMap foo;
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@ -138,57 +155,57 @@ void HttpMetaCache::addBase ( QString base, QString base_root )
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m_entries[base] = foo;
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}
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QString HttpMetaCache::getBasePath ( QString base )
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QString HttpMetaCache::getBasePath(QString base)
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{
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if(m_entries.contains(base))
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if (m_entries.contains(base))
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{
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return m_entries[base].base_path;
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}
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return QString();
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}
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void HttpMetaCache::Load()
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{
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QFile index(m_index_file);
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if(!index.open(QIODevice::ReadOnly))
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if (!index.open(QIODevice::ReadOnly))
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return;
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QJsonDocument json = QJsonDocument::fromJson(index.readAll());
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if(!json.isObject())
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if (!json.isObject())
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return;
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auto root = json.object();
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// check file version first
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auto version_val =root.value("version");
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if(!version_val.isString())
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auto version_val = root.value("version");
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if (!version_val.isString())
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return;
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if(version_val.toString() != "1")
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if (version_val.toString() != "1")
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return;
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// read the entry array
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auto entries_val =root.value("entries");
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if(!entries_val.isArray())
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auto entries_val = root.value("entries");
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if (!entries_val.isArray())
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return;
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QJsonArray array = entries_val.toArray();
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for(auto element: array)
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for (auto element : array)
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{
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if(!element.isObject())
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if (!element.isObject())
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return;
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auto element_obj = element.toObject();
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QString base = element_obj.value("base").toString();
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if(!m_entries.contains(base))
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if (!m_entries.contains(base))
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continue;
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auto & entrymap = m_entries[base];
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auto &entrymap = m_entries[base];
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auto foo = new MetaEntry;
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foo->base = base;
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QString path = foo->path = element_obj.value("path").toString();
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foo->md5sum = element_obj.value("md5sum").toString();
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foo->etag = element_obj.value("etag").toString();
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foo->local_changed_timestamp = element_obj.value("last_changed_timestamp").toDouble();
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foo->remote_changed_timestamp = element_obj.value("remote_changed_timestamp").toString();
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foo->remote_changed_timestamp =
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element_obj.value("remote_changed_timestamp").toString();
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// presumed innocent until closer examination
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foo->stale = false;
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entrymap.entry_list[path] = MetaEntryPtr( foo );
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entrymap.entry_list[path] = MetaEntryPtr(foo);
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}
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}
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@ -202,33 +219,35 @@ void HttpMetaCache::SaveEventually()
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void HttpMetaCache::SaveNow()
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{
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QSaveFile tfile(m_index_file);
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if(!tfile.open(QIODevice::WriteOnly | QIODevice::Truncate))
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if (!tfile.open(QIODevice::WriteOnly | QIODevice::Truncate))
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return;
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QJsonObject toplevel;
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toplevel.insert("version",QJsonValue(QString("1")));
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toplevel.insert("version", QJsonValue(QString("1")));
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QJsonArray entriesArr;
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for(auto group : m_entries)
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for (auto group : m_entries)
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{
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for(auto entry : group.entry_list)
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for (auto entry : group.entry_list)
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{
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QJsonObject entryObj;
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entryObj.insert("base", QJsonValue(entry->base));
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entryObj.insert("path", QJsonValue(entry->path));
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entryObj.insert("md5sum", QJsonValue(entry->md5sum));
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entryObj.insert("etag", QJsonValue(entry->etag));
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entryObj.insert("last_changed_timestamp", QJsonValue(double(entry->local_changed_timestamp)));
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if(!entry->remote_changed_timestamp.isEmpty())
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entryObj.insert("remote_changed_timestamp", QJsonValue(entry->remote_changed_timestamp));
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entryObj.insert("last_changed_timestamp",
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QJsonValue(double(entry->local_changed_timestamp)));
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if (!entry->remote_changed_timestamp.isEmpty())
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entryObj.insert("remote_changed_timestamp",
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QJsonValue(entry->remote_changed_timestamp));
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entriesArr.append(entryObj);
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}
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}
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toplevel.insert("entries",entriesArr);
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toplevel.insert("entries", entriesArr);
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QJsonDocument doc(toplevel);
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QByteArray jsonData = doc.toJson();
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qint64 result = tfile.write(jsonData);
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if(result == -1)
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if (result == -1)
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return;
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if(result != jsonData.size())
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if (result != jsonData.size())
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return;
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tfile.commit();
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}
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