1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
/* Copyright 2013 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "UpdateChecker.h"
#include "MultiMC.h"
#include "config.h"
#include "logger/QsLog.h"
#include <QJsonObject>
#include <QJsonArray>
#include <QJsonValue>
#define API_VERSION 0
#define CHANLIST_FORMAT 0
UpdateChecker::UpdateChecker()
{
m_currentChannel = VERSION_CHANNEL;
m_channelListUrl = CHANLIST_URL;
m_updateChecking = false;
m_chanListLoading = false;
m_checkUpdateWaiting = false;
m_chanListLoaded = false;
}
QList<UpdateChecker::ChannelListEntry> UpdateChecker::getChannelList() const
{
return m_channels;
}
bool UpdateChecker::hasChannels() const
{
return !m_channels.isEmpty();
}
void UpdateChecker::checkForUpdate()
{
QLOG_DEBUG() << "Checking for updates.";
// If the channel list hasn't loaded yet, load it and defer checking for updates until later.
if (!m_chanListLoaded)
{
QLOG_DEBUG() << "Channel list isn't loaded yet. Loading channel list and deferring update check.";
m_checkUpdateWaiting = true;
updateChanList();
return;
}
if (m_updateChecking)
{
QLOG_DEBUG() << "Ignoring update check request. Already checking for updates.";
return;
}
m_updateChecking = true;
// Get the URL for the channel we're using.
// TODO: Allow user to select channels. For now, we'll just use the current channel.
QString updateChannel = m_currentChannel;
// Find the desired channel within the channel list and get its repo URL. If if cannot be found, error.
m_repoUrl = "";
for (ChannelListEntry entry : m_channels)
{
if (entry.id == updateChannel)
m_repoUrl = entry.url;
}
// If we didn't find our channel, error.
if (m_repoUrl.isEmpty())
{
emit updateCheckFailed();
return;
}
QUrl indexUrl = QUrl(m_repoUrl).resolved(QUrl("index.json"));
auto job = new NetJob("GoUpdate Repository Index");
job->addNetAction(ByteArrayDownload::make(indexUrl));
connect(job, SIGNAL(succeeded()), SLOT(updateCheckFinished()));
connect(job, SIGNAL(failed()), SLOT(updateCheckFailed()));
indexJob.reset(job);
job->start();
}
void UpdateChecker::updateCheckFinished()
{
QLOG_DEBUG() << "Finished downloading repo index. Checking for new versions.";
QJsonParseError jsonError;
QByteArray data;
{
ByteArrayDownloadPtr dl = std::dynamic_pointer_cast<ByteArrayDownload>(indexJob->first());
data = dl->m_data;
indexJob.reset();
}
QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError);
if (jsonError.error != QJsonParseError::NoError || !jsonDoc.isObject())
{
QLOG_ERROR() << "Failed to parse GoUpdate repository index. JSON error" << jsonError.errorString() << "at offset" << jsonError.offset;
return;
}
QJsonObject object = jsonDoc.object();
bool success = false;
int apiVersion = object.value("ApiVersion").toVariant().toInt(&success);
if (apiVersion != API_VERSION || !success)
{
QLOG_ERROR() << "Failed to check for updates. API version mismatch. We're using" << API_VERSION << "server has" << apiVersion;
return;
}
QLOG_DEBUG() << "Processing repository version list.";
QJsonObject newestVersion;
QJsonArray versions = object.value("Versions").toArray();
for (QJsonValue versionVal : versions)
{
QJsonObject version = versionVal.toObject();
if (newestVersion.value("Id").toVariant().toInt() < version.value("Id").toVariant().toInt())
{
QLOG_DEBUG() << "Found newer version with ID" << version.value("Id").toVariant().toInt();
newestVersion = version;
}
}
// We've got the version with the greatest ID number. Now compare it to our current build number and update if they're different.
int newBuildNumber = newestVersion.value("Id").toVariant().toInt();
if (newBuildNumber != MMC->version().build)
{
// Update!
emit updateAvailable(m_repoUrl, newestVersion.value("Name").toVariant().toString(), newBuildNumber);
}
m_updateChecking = false;
}
void UpdateChecker::updateCheckFailed()
{
// TODO: log errors better
QLOG_ERROR() << "Update check failed for reasons unknown.";
}
void UpdateChecker::updateChanList()
{
QLOG_DEBUG() << "Loading the channel list.";
if (m_channelListUrl.isEmpty())
{
QLOG_ERROR() << "Failed to update channel list. No channel list URL set."
<< "If you'd like to use MultiMC's update system, please pass the channel list URL to CMake at compile time.";
return;
}
m_chanListLoading = true;
NetJob* job = new NetJob("Update System Channel List");
job->addNetAction(ByteArrayDownload::make(QUrl(m_channelListUrl)));
QObject::connect(job, &NetJob::succeeded, this, &UpdateChecker::chanListDownloadFinished);
QObject::connect(job, &NetJob::failed, this, &UpdateChecker::chanListDownloadFailed);
chanListJob.reset(job);
job->start();
}
void UpdateChecker::chanListDownloadFinished()
{
QByteArray data;
{
ByteArrayDownloadPtr dl = std::dynamic_pointer_cast<ByteArrayDownload>(chanListJob->first());
data = dl->m_data;
chanListJob.reset();
}
QJsonParseError jsonError;
QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError);
if (jsonError.error != QJsonParseError::NoError)
{
// TODO: Report errors to the user.
QLOG_ERROR() << "Failed to parse channel list JSON:" << jsonError.errorString() << "at" << jsonError.offset;
return;
}
QJsonObject object = jsonDoc.object();
bool success = false;
int formatVersion = object.value("format_version").toVariant().toInt(&success);
if (formatVersion != CHANLIST_FORMAT || !success)
{
QLOG_ERROR() << "Failed to check for updates. Channel list format version mismatch. We're using" << CHANLIST_FORMAT << "server has" << formatVersion;
return;
}
// Load channels into a temporary array.
QList<ChannelListEntry> loadedChannels;
QJsonArray channelArray = object.value("channels").toArray();
for (QJsonValue chanVal : channelArray)
{
QJsonObject channelObj = chanVal.toObject();
ChannelListEntry entry{
channelObj.value("id").toVariant().toString(),
channelObj.value("name").toVariant().toString(),
channelObj.value("description").toVariant().toString(),
channelObj.value("url").toVariant().toString()
};
if (entry.id.isEmpty() || entry.name.isEmpty() || entry.url.isEmpty())
{
QLOG_ERROR() << "Channel list entry with empty ID, name, or URL. Skipping.";
continue;
}
loadedChannels.append(entry);
}
// Swap the channel list we just loaded into the object's channel list.
m_channels.swap(loadedChannels);
m_chanListLoading = false;
m_chanListLoaded = true;
QLOG_INFO() << "Successfully loaded UpdateChecker channel list.";
// If we're waiting to check for updates, do that now.
if (m_checkUpdateWaiting)
checkForUpdate();
emit channelListLoaded();
}
void UpdateChecker::chanListDownloadFailed()
{
m_chanListLoading = false;
QLOG_ERROR() << "Failed to download channel list.";
emit channelListLoaded();
}
|
