test-example-projects/c++_projects/84wsoui3/third-part/7z/SevenZip/ArchiveExtractCallback.cpp

#include "ArchiveExtractCallback.h"
#include "PropVariant2.h"
#include "FileSys.h"
#include "OutStreamWrapper.h"
#include <comdef.h>
#include "../CPP/Common/MyCom.h"

namespace SevenZip
{
    namespace intl
    {

        const TString EmptyFileAlias = _T("[Content]");


        ArchiveExtractCallback::ArchiveExtractCallback(
            const CMyComPtr< IInArchive >& archiveHandler,
            const TString& directory,
            OverwriteModeEnum mode,
            ProgressCallback* callback)
            : m_refCount(0)
            , m_archiveHandler(archiveHandler)
            , m_directory(directory)
            , m_callback(callback)
            , m_overwriteMode(mode)
            , m_totalSize(0)
			, PasswordIsDefined(false)
        {
            if (*m_directory.rbegin() != L'\\' && *m_directory.rbegin() != L'/')
                m_directory +=L'\\';
        }

        ArchiveExtractCallback::~ArchiveExtractCallback()
        {
        }

        STDMETHODIMP ArchiveExtractCallback::QueryInterface(REFIID iid, void** ppvObject)
        {
            if (iid == __uuidof(IUnknown))
            {
                *ppvObject = reinterpret_cast<IUnknown*>(this);
                AddRef();
                return S_OK;
            }

            if (iid == IID_IArchiveExtractCallback)
            {
                *ppvObject = static_cast<IArchiveExtractCallback*>(this);
                AddRef();
                return S_OK;
            }

            if (iid == IID_ICryptoGetTextPassword)
            {
                *ppvObject = static_cast<ICryptoGetTextPassword*>(this);
                AddRef();
                return S_OK;
            }

            if (iid == IID_ICompressProgressInfo)
            {
                *ppvObject = static_cast<ICompressProgressInfo*>(this);
                AddRef();
                return S_OK;
            }

            return E_NOINTERFACE;
        }

        STDMETHODIMP_(ULONG) ArchiveExtractCallback::AddRef()
        {
            return static_cast<ULONG>(InterlockedIncrement(&m_refCount));
        }

        STDMETHODIMP_(ULONG) ArchiveExtractCallback::Release()
        {
            ULONG res = static_cast<ULONG>(InterlockedDecrement(&m_refCount));
            if (res == 0)
            {
                delete this;
            }
            return res;
        }

        STDMETHODIMP ArchiveExtractCallback::SetTotal(UInt64 size)
        {
#ifdef _DEBUG
            wprintf_s(L"SetTotal:%llu\n", size);
#endif // _DEBUG
            m_totalSize = size;
            //	- SetTotal is never called for ZIP and 7z formats
            if (m_callback)
            {
                m_callback->OnStart(m_absPath, size);
            }
            return S_OK;
        }

        STDMETHODIMP ArchiveExtractCallback::SetCompleted(const UInt64* completeValue)
        {
#ifdef _DEBUG
            wprintf_s(L"SetCompleted:%llu\n", *completeValue);
#endif // _DEBUG
            completeValue;
            //Callback Event calls
            /*
            NB:
            - For ZIP format SetCompleted only called once per 1000 files in central directory and once per 100 in local ones.
            - For 7Z format SetCompleted is never called.
            */
            if (m_callback)
            {
                //Don't call this directly, it will be called per file which is more consistent across archive types
                //TODO: incorporate better progress tracking
                //m_callback->OnProgress(m_absPath, *completeValue);
            }
            return S_OK;
        }

        STDMETHODIMP ArchiveExtractCallback::SetRatioInfo(const UInt64 *inSize, const UInt64 *outSize)
        {
#ifdef _DEBUG
            wprintf_s(L"SetRatioInfo:%llu-%llu\n", *inSize, *outSize);
#endif // _DEBUG
            if (m_callback)
                m_callback->OnRadio(*inSize, *outSize);
            return S_OK;
        }

        STDMETHODIMP ArchiveExtractCallback::GetStream(UInt32 index, ISequentialOutStream** outStream, Int32 askExtractMode)
        {
            try
            {
                // Retrieve all the various properties for the file at this index.
                GetPropertyFilePath(index);
                if (askExtractMode != NArchive::NExtract::NAskMode::kExtract)
                {
                    return S_OK;
                }

                GetPropertyAttributes(index);
                GetPropertyIsDir(index);
                GetPropertyModifiedTime(index);
                GetPropertyCreatedTime(index);
                GetPropertyAccessedTime(index);
                GetPropertySize(index);
            }
            catch (_com_error& ex)
            {
                wprintf_s(L"获取数据失败\n");
                return ex.Error();
            }

            // TODO: m_directory could be a relative path as "..\"
            m_absPath = FileSys::AppendPath(m_directory, m_relPath);

            if (m_isDir)
            {
                wprintf_s(L"DirBegin:%s\n", m_absPath.c_str());
                FileSys::CreateDirectoryTree(m_absPath);
                *outStream = NULL;
                return S_OK;
            }

            if (m_callback)
            {
                if (!m_callback->OnFileBegin(m_directory, m_relPath))
                {
                    //stop decompress
                    return E_FAIL;
                }
                //Skip file
                if (m_relPath.empty())
                {
                    *outStream = NULL;
                    return S_OK;
                } 
            }

            wprintf_s(L"FileBegin:%s\n", m_absPath.c_str());
            if (m_overwriteMode == OverwriteMode::kRollBack)
            {
                TString BackupPath;
                if (FileSys::PathExists(m_absPath))
                {
                    BackupPath = FileSys::GetUniquePath(m_absPath);
                    if (!FileSys::BackupFile(m_absPath, BackupPath))
                        return HRESULT_FROM_WIN32(GetLastError());
                }
                RollBack_Info info;
                info.backup_path = BackupPath;
                info.original_path = m_absPath;
                m_rollbacks.push_back(info);
            }
            else if (FileSys::PathExists(m_absPath))
            {
                if (m_overwriteMode == OverwriteMode::kSkipExisting)
                {
                    *outStream = NULL;
                    return S_OK;
                }
                else if (m_overwriteMode == OverwriteMode::kAutoRename)
                {
                    m_absPath = FileSys::GetUniquePath(m_absPath);
                }
                else if (m_overwriteMode == OverwriteMode::kAutoRenameExisting)
                {
                    TString rename_path = FileSys::GetUniquePath(m_absPath);
                    if (!FileSys::RenameFile(m_absPath, rename_path))
                    {
                        wprintf_s(L"重命名文件失败:%s-%s\n", m_absPath.c_str(), rename_path.c_str());
                        return HRESULT_FROM_WIN32(GetLastError());
                    }
                }
                else if (m_overwriteMode == OverwriteMode::kWithoutPrompt)
                {
                    if (!FileSys::RemovePath(m_absPath))
                    {
                        wprintf_s(L"移除路径失败:%s\n", m_absPath.c_str());
                        return HRESULT_FROM_WIN32(GetLastError());
                    }
                }
                else
                {
                    wprintf_s(L"文件已存在:%s\n", m_absPath.c_str());
                    return ERROR_FILE_EXISTS;
                }
            }

            TString absDir = FileSys::GetPath(m_absPath);
            if (!FileSys::CreateDirectoryTree(absDir))
            {
                wprintf_s(L"创建目录失败:%s\n", absDir.c_str());
                return ERROR_CREATE_FAILED;
            }

            CMyComPtr< IStream > fileStream = FileSys::OpenFileToWrite(m_absPath);
            if (fileStream == NULL)
            {
                wprintf_s(L"创建文件失败:%s\n", m_absPath.c_str());
                m_absPath.clear();
                return HRESULT_FROM_WIN32(GetLastError());
            }

            OutStreamWrapper* stream = new OutStreamWrapper(fileStream);
            if (!stream)
            {
                wprintf_s(L"内存不足\n");
                return E_OUTOFMEMORY;
            }

            CMyComPtr< OutStreamWrapper > wrapperStream = stream;
            *outStream = wrapperStream.Detach();

            return S_OK;
        }

        STDMETHODIMP ArchiveExtractCallback::PrepareOperation(Int32 /*askExtractMode*/)
        {
            return S_OK;
        }

        STDMETHODIMP ArchiveExtractCallback::SetOperationResult(Int32 operationResult)
        {
            if (m_overwriteMode == OverwriteMode::kRollBack && operationResult != S_OK)
            {
                _ASSERT_EXPR(FALSE,L"begin rollback");
                bool succ = ProcessRollBack(); succ;
                _ASSERT_EXPR(succ, L"rollback error!");
                return E_FAIL;
            }
            

            if (m_absPath.empty())
            {
                wprintf_s(L"AllDone\n");
                if (m_callback)
                    m_callback->OnEnd(m_directory);
                return S_OK;
            }

            if (m_hasModifiedTime || m_hasAccessedTime || m_hasCreatedTime)
            {
                HANDLE fileHandle = CreateFile(m_absPath.c_str(), GENERIC_WRITE, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
                if (fileHandle != INVALID_HANDLE_VALUE)
                {
                    SetFileTime(fileHandle,
                        m_hasCreatedTime ? &m_createdTime : NULL,
                        m_hasAccessedTime ? &m_accessedTime : NULL,
                        m_hasModifiedTime ? &m_modifiedTime : NULL);
                    CloseHandle(fileHandle);
                }
            }

            if (m_hasAttrib)
            {
                SetFileAttributes(m_absPath.c_str(), m_attrib);
            }

            wprintf_s(L"FileDone:%s\n", m_absPath.c_str());
            if (m_callback)
            {
                if(!m_callback->OnFileDone(m_absPath, m_newFileSize))
                    return E_FAIL;
                m_callback->OnProgress(m_absPath, m_newFileSize);
            }
            return S_OK;
        }

        STDMETHODIMP ArchiveExtractCallback::CryptoGetTextPassword(BSTR* password)
        {
			if (!PasswordIsDefined)
			{
				// You can ask real password here from user
				// Password = GetPassword(OutStream);
				// PasswordIsDefined = true;
				printf("Password is not defined");
				return E_ABORT;
			}
			return StringToBstr(Password, password);
        }

        void ArchiveExtractCallback::GetPropertyFilePath(UInt32 index)
        {
            CPropVariant prop;
            HRESULT hr = m_archiveHandler->GetProperty(index, kpidPath, &prop);
            if (hr != S_OK)
            {
                _com_issue_error(hr);
            }

            if ( prop.vt == VT_EMPTY )
            {
                m_relPath = EmptyFileAlias;
            }
            else if (prop.vt != VT_BSTR)
            {
                _com_issue_error(E_FAIL);
            }
            else
            {
                _bstr_t bstr = prop.bstrVal;
#ifdef _UNICODE
                m_relPath = bstr;
#else
                char relPath[MAX_PATH];
                int size = WideCharToMultiByte(CP_UTF8, 0, bstr, bstr.length(), relPath, MAX_PATH, NULL, NULL);
                m_relPath.assign(relPath, size);
#endif
            }
        }

        void ArchiveExtractCallback::GetPropertyAttributes(UInt32 index)
        {
            CPropVariant prop;
            HRESULT hr = m_archiveHandler->GetProperty(index, kpidAttrib, &prop);
            if (hr != S_OK)
            {
                _com_issue_error(hr);
            }

            if (prop.vt == VT_EMPTY)
            {
                m_attrib = 0;
                m_hasAttrib = false;
            }
            else if (prop.vt != VT_UI4)
            {
                _com_issue_error(E_FAIL);
            }
            else
            {
                m_attrib = prop.ulVal;
                m_hasAttrib = true;
            }
        }

        void ArchiveExtractCallback::GetPropertyIsDir(UInt32 index)
        {
            CPropVariant prop;
            HRESULT hr = m_archiveHandler->GetProperty(index, kpidIsDir, &prop);
            if (hr != S_OK)
            {
                _com_issue_error(hr);
            }

            if (prop.vt == VT_EMPTY)
            {
                m_isDir = false;
            }
            else if (prop.vt != VT_BOOL)
            {
                _com_issue_error(E_FAIL);
            }
            else
            {
                m_isDir = prop.boolVal != VARIANT_FALSE;
            }
        }

        void ArchiveExtractCallback::GetPropertyModifiedTime(UInt32 index)
        {
            CPropVariant prop;
            HRESULT hr = m_archiveHandler->GetProperty(index, kpidMTime, &prop);
            if (hr != S_OK)
            {
                _com_issue_error(hr);
            }

            if (prop.vt == VT_EMPTY)
            {
                m_hasModifiedTime = false;
            }
            else if (prop.vt != VT_FILETIME)
            {
                _com_issue_error(E_FAIL);
            }
            else
            {
                m_modifiedTime = prop.filetime;
                m_hasModifiedTime = true;
            }
        }
        void ArchiveExtractCallback::GetPropertyAccessedTime(UInt32 index)
        {
            CPropVariant prop;
            HRESULT hr = m_archiveHandler->GetProperty(index, kpidATime, &prop);
            if (hr != S_OK)
            {
                _com_issue_error(hr);
            }

            if (prop.vt == VT_EMPTY)
            {
                m_hasAccessedTime = false;
            }
            else if (prop.vt != VT_FILETIME)
            {
                _com_issue_error(E_FAIL);
            }
            else
            {
                m_accessedTime = prop.filetime;
                m_hasAccessedTime = true;
            }
        }

        void ArchiveExtractCallback::GetPropertyCreatedTime(UInt32 index)
        {
            CPropVariant prop;
            HRESULT hr = m_archiveHandler->GetProperty(index, kpidCTime, &prop);
            if (hr != S_OK)
            {
                _com_issue_error(hr);
            }

            if (prop.vt == VT_EMPTY)
            {
                m_hasCreatedTime = false;
            }
            else if (prop.vt != VT_FILETIME)
            {
                _com_issue_error(E_FAIL);
            }
            else
            {
                m_createdTime = prop.filetime;
                m_hasCreatedTime = true;
            }
        }

        void ArchiveExtractCallback::GetPropertySize(UInt32 index)
        {
            CPropVariant prop;
            HRESULT hr = m_archiveHandler->GetProperty(index, kpidSize, &prop);
            if (hr != S_OK)
            {
                _com_issue_error(hr);
            }

            switch (prop.vt)
            {
            case VT_EMPTY:
                m_hasNewFileSize = false;
                return;
            case VT_UI1:
                m_newFileSize = prop.bVal;
                break;
            case VT_UI2:
                m_newFileSize = prop.uiVal;
                break;
            case VT_UI4:
                m_newFileSize = prop.ulVal;
                break;
            case VT_UI8:
                m_newFileSize = (UInt64)prop.uhVal.QuadPart;
                break;
            default:
                _com_issue_error(E_FAIL);
            }

            m_hasNewFileSize = true;
        }


        bool ArchiveExtractCallback::ProcessRollBack()
        {
            bool succ = true;
            for (size_t i = 0;i<m_rollbacks.size();++i)
            {
                RollBack_Info& a = m_rollbacks[i];
                if (m_callback)
                    m_callback->OnRollBack(a.original_path);

                if (a.backup_path.empty())
                    FileSys::RemovePath(a.original_path);
                else
                    succ = FileSys::RenameFile(a.backup_path, a.original_path);
            }
            return succ;
        }
    }
}