116 lines
3.2 KiB
C++
116 lines
3.2 KiB
C++
/* Copyright (C) 2020 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. 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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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "ModInstaller.h"
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#include "lib/file/vfs/vfs_util.h"
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#include "ps/Filesystem.h"
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#include "ps/XML/Xeromyces.h"
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#ifdef OS_WIN
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#include <fstream>
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#endif
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CModInstaller::CModInstaller(const OsPath& modsdir, const OsPath& tempdir) :
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m_ModsDir(modsdir), m_TempDir(tempdir / "_modscache"), m_CacheDir("cache/")
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{
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m_VFS = CreateVfs();
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CreateDirectories(m_TempDir, 0700);
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}
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CModInstaller::~CModInstaller()
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{
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m_VFS.reset();
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DeleteDirectory(m_TempDir);
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}
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CModInstaller::ModInstallationResult CModInstaller::Install(
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const OsPath& mod,
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const std::shared_ptr<ScriptContext>& scriptContext,
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bool keepFile)
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{
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const OsPath modTemp = m_TempDir / mod.Basename() / mod.Filename().ChangeExtension(L".zip");
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CreateDirectories(modTemp.Parent(), 0700);
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if (keepFile)
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CopyFile(mod, modTemp, true);
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else
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wrename(mod, modTemp);
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// Load the mod to VFS
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if (m_VFS->Mount(m_CacheDir, m_TempDir / "") != INFO::OK)
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return FAIL_ON_VFS_MOUNT;
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CVFSFile modinfo;
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PSRETURN modinfo_status = modinfo.Load(m_VFS, m_CacheDir / modTemp.Basename() / "mod.json", false);
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m_VFS->Clear();
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if (modinfo_status != PSRETURN_OK)
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return FAIL_ON_MOD_LOAD;
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// Extract the name of the mod
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CStr modName;
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{
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ScriptInterface scriptInterface("Engine", "ModInstaller", scriptContext);
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ScriptRequest rq(scriptInterface);
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JS::RootedValue json_val(rq.cx);
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if (!scriptInterface.ParseJSON(modinfo.GetAsString(), &json_val))
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return FAIL_ON_PARSE_JSON;
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JS::RootedObject json_obj(rq.cx, json_val.toObjectOrNull());
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JS::RootedValue name_val(rq.cx);
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if (!JS_GetProperty(rq.cx, json_obj, "name", &name_val))
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return FAIL_ON_EXTRACT_NAME;
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ScriptInterface::FromJSVal(rq, name_val, modName);
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if (modName.empty())
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return FAIL_ON_EXTRACT_NAME;
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}
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const OsPath modDir = m_ModsDir / modName;
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const OsPath modPath = modDir / (modName + ".zip");
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// Create a directory with the following structure:
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// mod-name/
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// mod-name.zip
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CreateDirectories(modDir, 0700);
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if (wrename(modTemp, modPath) != 0)
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return FAIL_ON_MOD_MOVE;
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DeleteDirectory(modTemp.Parent());
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#ifdef OS_WIN
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// On Windows, write the contents of mod.json to a separate file next to the archive:
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// mod-name/
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// mod-name.zip
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// mod.json
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std::ofstream mod_json((modDir / "mod.json").string8());
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if (mod_json.good())
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{
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mod_json << modinfo.GetAsString();
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mod_json.close();
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}
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#endif // OS_WIN
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m_InstalledMods.emplace_back(modName);
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return SUCCESS;
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}
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const std::vector<CStr>& CModInstaller::GetInstalledMods() const
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{
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return m_InstalledMods;
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}
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