summaryrefslogtreecommitdiffstats
path: root/logic/ForgeInstaller.cpp
blob: 35663dddec1671fa7c9f9ef9898b388fdb5a6bf8 (plain)
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
/* 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 "ForgeInstaller.h"
#include "DerpVersion.h"
#include "DerpLibrary.h"
#include "net/HttpMetaCache.h"
#include <quazip.h>
#include <quazipfile.h>
#include <pathutils.h>
#include <QStringList>
#include "MultiMC.h"
#include "DerpInstance.h"

#include <QJsonDocument>
#include <QJsonArray>
#include <QSaveFile>
#include <QCryptographicHash>

ForgeInstaller::ForgeInstaller(QString filename, QString universal_url)
{
	std::shared_ptr<DerpVersion> newVersion;
	m_universal_url = universal_url;

	QuaZip zip(filename);
	if (!zip.open(QuaZip::mdUnzip))
		return;

	QuaZipFile file(&zip);

	// read the install profile
	if (!zip.setCurrentFile("install_profile.json"))
		return;

	QJsonParseError jsonError;
	if (!file.open(QIODevice::ReadOnly))
		return;
	QJsonDocument jsonDoc = QJsonDocument::fromJson(file.readAll(), &jsonError);
	file.close();
	if (jsonError.error != QJsonParseError::NoError)
		return;

	if (!jsonDoc.isObject())
		return;

	QJsonObject root = jsonDoc.object();

	auto installVal = root.value("install");
	auto versionInfoVal = root.value("versionInfo");
	if (!installVal.isObject() || !versionInfoVal.isObject())
		return;

	// read the forge version info
	{
		newVersion = DerpVersion::fromJson(versionInfoVal.toObject());
		if (!newVersion)
			return;
	}

	QJsonObject installObj = installVal.toObject();
	QString libraryName = installObj.value("path").toString();
	internalPath = installObj.value("filePath").toString();

	// where do we put the library? decode the mojang path
	DerpLibrary lib(libraryName);
	lib.finalize();

	auto cacheentry = MMC->metacache()->resolveEntry("libraries", lib.storagePath());
	finalPath = "libraries/" + lib.storagePath();
	if (!ensureFilePathExists(finalPath))
		return;

	if (!zip.setCurrentFile(internalPath))
		return;
	if (!file.open(QIODevice::ReadOnly))
		return;
	{
		QByteArray data = file.readAll();
		// extract file
		QSaveFile extraction(finalPath);
		if (!extraction.open(QIODevice::WriteOnly))
			return;
		if (extraction.write(data) != data.size())
			return;
		if (!extraction.commit())
			return;
		QCryptographicHash md5sum(QCryptographicHash::Md5);
		md5sum.addData(data);

		cacheentry->stale = false;
		cacheentry->md5sum = md5sum.result().toHex().constData();
		MMC->metacache()->updateEntry(cacheentry);
	}
	file.close();

	m_forge_version = newVersion;
	realVersionId = m_forge_version->id = installObj.value("minecraft").toString();
}

bool ForgeInstaller::add(DerpInstance *to)
{
	if (!BaseInstaller::add(to))
	{
		return false;
	}

	QJsonObject obj;
	obj.insert("order", 5);

	if (!m_forge_version)
		return false;
	int sliding_insert_window = 0;
	{
		QJsonArray librariesPlus;

		// for each library in the version we are adding (except for the blacklisted)
		QSet<QString> blacklist{"lwjgl", "lwjgl_util", "lwjgl-platform"};
		for (auto lib : m_forge_version->libraries)
		{
			QString libName = lib->name();
			// WARNING: This could actually break.
			// if this is the actual forge lib, set an absolute url for the download
			if (libName.contains("minecraftforge"))
			{
				lib->setAbsoluteUrl(m_universal_url);
			}
			else if (libName.contains("scala"))
			{
				lib->setHint("forge-pack-xz");
			}
			if (blacklist.contains(libName))
				continue;

			QJsonObject libObj = lib->toJson();

			bool found = false;
			// find an entry that matches this one
			for (auto tolib : to->getFullVersion()->libraries)
			{
				if (tolib->name() != libName)
					continue;
				found = true;
				// replace lib
				libObj.insert("insert", QString("apply"));
				break;
			}
			if (!found)
			{
				// add lib
				QJsonObject insertObj;
				insertObj.insert("before", to->getFullVersion()->libraries.at(sliding_insert_window)->rawName());
				libObj.insert("insert", insertObj);
				sliding_insert_window++;
			}
			librariesPlus.append(libObj);
		}
		obj.insert("+libraries", librariesPlus);
		obj.insert("mainClass", m_forge_version->mainClass);
		obj.insert("minecraftArguments", m_forge_version->minecraftArguments);
		obj.insert("processArguments", m_forge_version->processArguments);
	}

	QFile file(filename(to->instanceRoot()));
	if (!file.open(QFile::WriteOnly))
	{
		QLOG_ERROR() << "Error opening" << file.fileName() << "for reading:" << file.errorString();
		return false;
	}
	file.write(QJsonDocument(obj).toJson());
	file.close();

	return true;
}