int ReadMem(kMemory* pk_Mem, void* buffer, UINT count)
{
if (mu32_BlockSize > 0) // read from the blocks in memory (Cache)
{
// Cabinet.dll opens two handles to the CAB file
// The data in the first block of the CAB file is read multiple times by BOTH handles
if (pk_Mem->s32_Pos + count < mu32_BlockSize)
return mi_FirstBlock.ReadData(buffer, pk_Mem->s32_Pos, count);
// One CAB file handle reads the CAB index (filenames)
// The other handle reads the compressed data
// To avoid unneccessary downloads each CAB file handle has its own cache
DWORD u32_Cache = (DWORD)(INT_PTR) pk_Mem->p_Addr;
return mi_Cache[u32_Cache].ReadData(buffer, pk_Mem->s32_Pos, count);
}
else // read from the downloaded file on disk
{
SetFilePointer(mi_Internet.GetDownloadFile(), pk_Mem->s32_Pos, 0, FILE_BEGIN);
DWORD u32_Read;
if (!ReadFile(mi_Internet.GetDownloadFile(), buffer, count, &u32_Read, 0))
{
mi_Error.Set(FDIERROR_READ_CABFILE, GetLastError(),0);
return -1;
}
return u32_Read;
}
}
bool CDownload::Next()
{
if (m_List.empty())
return false;
DOWNLOAD& Download = m_List.front();
CString strSrcURL = Download.strSrcURL;
if (strSrcURL.GetLength() <= 0)
return false;
if (m_bShowProgress)
{
m_ProgressDialog.SetLineText(1/*dwLine*/, strSrcURL);
m_ProgressDialog.UpdateProgress(0, 100/*dwMax*/);
m_ProgressDialog.ResetTimer();
}
if (m_bGoOnline)
{
CInternet Internet;
if (!Internet.GoOnline(strSrcURL, NULL/*hwndParentWindow*/, false/*bForceLANOnlineSilently*/))
return false;
}
#ifdef NETSCAPE
CCtp* pCtp = (CCtp*)m_lParam;
NPN_GetURL(pCtp->m_pNPPInstance, strSrcURL, NULL);
#else
CBindStatusCallback2<CCtp>::Download(CComBSTR(strSrcURL), this, m_pClientSite);
#endif NETSCAPE
return true;
}
BOOL Initialize(WCHAR* u16_Url, WCHAR* u16_LocalFile, DWORD u32_Blocksize)
{
mu32_BlockSize = u32_Blocksize;
mu32_Cache = 0;
if (!mi_Internet.LoadWininet())
{
mi_Error.Set(FDIERROR_LOAD_WININET_DLL,0,0);
return FALSE;
}
// Sets Username, Password, Server, UrlPath, Port, ServiceType
DWORD u32_ApiErr;
if (u32_ApiErr = mi_Internet.SetUrl(u16_Url))
{
mi_Error.Set(FDIERROR_INTERNET, u32_ApiErr,0);
return FALSE;
}
BOOL b_Offline;
if (u32_ApiErr = mi_Internet.ConnectServer(&b_Offline))
{
if (b_Offline) mi_Error.Set(FDIERROR_MSIE_OFFLINE, u32_ApiErr, 0);
else mi_Error.Set(FDIERROR_INTERNET, u32_ApiErr, 0);
return FALSE;
}
if (u32_Blocksize > 0) // Extract via memory blocks
{
#if _TraceInternet
CTrace::TraceW(L"*** Starting URL extraction. Loading blocks of %d Bytes to memory", u32_Blocksize);
#endif
// Minimum 50 kB
// WARNING: Blocks smaller than 250 kB result in a very bad performance (see above)
mu32_BlockSize = max(mu32_BlockSize, 50000);
mi_FirstBlock.Init(mu32_BlockSize, CacheCallback, 'F','i'); // Block "Fi"
mi_Cache[0]. Init(mu32_BlockSize, CacheCallback, '1'); // Block "1A" and "1B"
mi_Cache[1]. Init(mu32_BlockSize, CacheCallback, '2'); // Block "2A" and "2B"
}
else // Extract via a file which is entirely saved to disk, then extracted
{
u32_ApiErr = mi_Internet.CreateDownloadFileW(u16_LocalFile);
if (u32_ApiErr)
{
mi_Error.Set(FDIERROR_TARGET_FILE, u32_ApiErr,0);
return FALSE;
}
DWORD u32_Status;
if (u32_ApiErr = mi_Internet.DownloadEntireFileToDisk(&u32_Status))
{
mi_Error.Set(FDIERROR_INTERNET, u32_ApiErr, u32_Status);
return FALSE;
}
}
return TRUE;
}
int CloseMem(kMemory* pk_Mem)
{
// The download file must be kept open! (Maybe the user wants to extract more files later)
mi_Internet.CloseInternet();
delete pk_Mem;
return 0;
}
bool CHpAutoUpdate::Start(bool bSilent, CString& strManifestURL)
{
if (!m_pCtp)
return false;
// Check the online status to see if we need to defer this operation
CInternet Internet;
if (!Internet.IsOnline(false/*bForceLANOnline*/))
{
if (!bSilent)
CMessageBox::Message(String(IDS_AUTOUPDATE_ONLINE_PROMPT));
return false;
}
if (bSilent)
{
if (!IsSilentUpdateAllowed())
return false;
RegisterSilentUpdate();
}
m_bSilent = bSilent;
// Go get the manifest file
#ifdef _DEBUG
CString szManifestURL = "http://localhost/dataupload/hpmanifest.xml";
#else
CString strImgHost = m_pCtp->GetContextImgHost();
CString szManifestURL = strImgHost + String(IDS_HPMANIFEST_URL);
#endif
int index = max(szManifestURL.ReverseFind('/'), szManifestURL.ReverseFind('\\'));
m_strManifestPath = szManifestURL.Left(index + 1);
m_strManifestFile = RandomFileName();
if (!m_pCtp->GetDownload().Init(1/*iFileType*/, CAutoUpdate::MyGetManifestCallback, (LPARAM)m_pCtp, DL_KILLINPROGRESS))
return false;
m_pCtp->GetDownload().AddFile(szManifestURL, m_strManifestFile, NULL);
m_pCtp->GetDownload().Start(true/*m_bGoOnline*/);
return true;
}
// CleanUp() must only be called if this class is not destroyed with its destructor
// It must be called to close the connection to the server and close the download file which is still open
// This is NOT done automatically to allow re-using this class (e.g. multiple extraction of single files)
BOOL CleanUp()
{
mi_Internet.CleanUp(); // close handles
mi_FirstBlock.Init(0,0,0,0); // free memory
mi_Cache[0].Init (0,0,0);
mi_Cache[1].Init (0,0,0);
// Clean up base class
return CExtract::CleanUp();
}
// Extract additional files from the CAB file which has been used in a previous call to ExtractUrlW()
BOOL ExtractMoreUrlW(const CStrW& sw_TargetDir, void* pParam = NULL)
{
mu32_Cache = 0;
// re-open the same connection, re-using the cache's contents or the already downloaded file
BOOL b_Offline;
DWORD u32_ApiErr = mi_Internet.ConnectServer(&b_Offline);
if (u32_ApiErr)
{
if (b_Offline) mi_Error.Set(FDIERROR_MSIE_OFFLINE, u32_ApiErr, 0);
else mi_Error.Set(FDIERROR_INTERNET, u32_ApiErr, 0);
return FALSE;
}
return ExtractFileW(L"*CABINET\\*URL", sw_TargetDir, pParam);
}
// Extract the CAB file at the given URL into the given target directory
// If u16_LocalFile = "" -> a temporary file will be created
// A Cabfile will be written to disk ONLY if u32_Blocksize = 0 !!
// u16_TargetDir = L"" AND Blocksize = 0 --> only download any file from internet to disk
BOOL ExtractUrlW(const CStrW& sw_URL, DWORD u32_Blocksize, const CStrW& sw_LocalFile, const CStrW& sw_TargetDir, void* pParam = NULL)
{
if (!Initialize(sw_URL, sw_LocalFile, u32_Blocksize))
return FALSE;
// Just a download without CAB extraction
if (!u32_Blocksize && sw_LocalFile.Len() && !sw_TargetDir.Len())
{
// The caller may want to access the file immediately -> close all
mi_Internet.CleanUp();
return TRUE;
}
// Pass it on to the base class
return ExtractFileW(L"*CABINET\\*URL", sw_TargetDir, pParam);
}
// See comment in Internet.hpp !!!
void GetProgress(ULONGLONG* pu64_Size, ULONGLONG* pu64_Read)
{
mi_Internet.GetProgress(pu64_Size, pu64_Read);
}
// This function aborts the currently active operation.
void AbortOperation()
{
CExtract::AbortOperation();
mi_Internet.AbortOperation();
}
// Download only the first u32_MaxDownload Bytes of the file
// Ignored for partial downloads!
void SetMaxDownload(DWORD u32_MaxDownload)
{
mi_Internet.SetMaxDownload(u32_MaxDownload);
}
// Set FTP mode passive / active
void SetPassiveFtpMode(BOOL b_Passive)
{
mi_Internet.FtpSetPassiveMode(b_Passive);
}
// Modifies the HTTP headers which are sent to the server. (separated by pipe)
// e.g. "Referer: http://www.test.com|Accept-Language:en" (no space before or after pipe!!)
// If the value of a header is empty, the header is removed.
void SetHttpHeadersW(const CStrW& sw_Headers)
{
mi_Internet.HttpSetHeaders(sw_Headers);
}
// Set a proxy or multiple proxies:
// String Format= "http=http://Proxy1.com:8000 https=https://Proxy2.com:443"
// You can specify separate proxies for HTTP, HTTPS, FTP
// u16_Proxy = "" --> Use Internet Explorer default settings
void SetProxyW(const CStrW& sw_Proxy)
{
mi_Internet.SetProxy(sw_Proxy);
}
// Set a proxy or multiple proxies:
// String Format= "http=http://Proxy1.com:8000 https=https://Proxy2.com:443"
// You can specify separate proxies for HTTP, HTTPS, FTP
// u16_Proxy = "" --> Use Internet Explorer default settings
// The proxy user and proxy password are normally stored by Internet Explorer but this does not work always.
// If Wininet.dll returns error 407 repeatedly try setting User and Password here
void SetProxyW(const CStrW& sw_Server, const CStrW& sw_User=L"", const CStrW& sw_Pass=L"")
{
mi_Internet.SetProxy(sw_Server, sw_User, sw_Pass);
}
