diff options
Diffstat (limited to 'other-licenses/nsis/Contrib/InetBgDL/InetBgDL.cpp')
| -rw-r--r-- | other-licenses/nsis/Contrib/InetBgDL/InetBgDL.cpp | 739 |
1 files changed, 739 insertions, 0 deletions
diff --git a/other-licenses/nsis/Contrib/InetBgDL/InetBgDL.cpp b/other-licenses/nsis/Contrib/InetBgDL/InetBgDL.cpp new file mode 100644 index 0000000000..0d248be60d --- /dev/null +++ b/other-licenses/nsis/Contrib/InetBgDL/InetBgDL.cpp @@ -0,0 +1,739 @@ +// +// Copyright (C) Anders Kjersem. Licensed under the zlib/libpng license +// + +// This file is intended to be compiled with MSVC's Omit Default Library Name (/Zl) +// option enabled, in order to keep the file size low for bundling this DLL with +// the stub installer. That means that any code requiring the C runtime will fail +// to link. You'll see a couple of odd-looking things here for this reason; they +// should all be called out with comments. + +#include "InetBgDL.h" + +#define USERAGENT _T("NSIS InetBgDL (Mozilla)") + +#define STATUS_COMPLETEDALL 0 +#define STATUS_INITIAL 202 +#define STATUS_CONNECTING STATUS_INITIAL //102 +#define STATUS_DOWNLOADING STATUS_INITIAL +#define STATUS_ERR_GETLASTERROR 418 //HTTP: I'm a teapot: Win32 error code in $3 +#define STATUS_ERR_LOCALFILEWRITEERROR 450 //HTTP: MS parental control extension +#define STATUS_ERR_CANCELLED 499 +#define STATUS_ERR_CONNECTION_LOST 1000 + +typedef DWORD FILESIZE_T; // Limit to 4GB for now... +#define FILESIZE_UNKNOWN (-1) + +#define MAX_STRLEN 1024 + +HINSTANCE g_hInst; +NSIS::stack_t*g_pLocations = NULL; +HANDLE g_hThread = NULL; +HANDLE g_hGETStartedEvent = NULL; +HINTERNET g_hInetSes = NULL; +HINTERNET g_hInetFile = NULL; +volatile UINT g_FilesTotal = 0; +volatile UINT g_FilesCompleted = 0; +volatile UINT g_Status = STATUS_INITIAL; +volatile FILESIZE_T g_cbCurrXF; +volatile FILESIZE_T g_cbCurrTot = FILESIZE_UNKNOWN; +CRITICAL_SECTION g_CritLock; +UINT g_N_CCH; +PTSTR g_N_Vars; +TCHAR g_ServerIP[128] = { _T('\0') }; + +DWORD g_ConnectTimeout = 0; +DWORD g_ReceiveTimeout = 0; + +// Setup a buffer of size 256KiB to store the downloaded data. +constexpr UINT g_cbBufXF = 262144; +// This buffer is only needed inside TaskThreadProc(), but declaring it on +// the stack there triggers a runtime stack size check, which is implemented +// by a C runtime library function, so we have to avoid the compiler wanting +// to build that check by not having any large stack buffers. +BYTE g_bufXF[g_cbBufXF]; + +#define NSISPI_INITGLOBALS(N_CCH, N_Vars) do { \ + g_N_CCH = N_CCH; \ + g_N_Vars = N_Vars; \ + } while(0) + +#define ONELOCKTORULETHEMALL +#ifdef ONELOCKTORULETHEMALL +#define TaskLock_AcquireExclusive() EnterCriticalSection(&g_CritLock) +#define TaskLock_ReleaseExclusive() LeaveCriticalSection(&g_CritLock) +#define StatsLock_AcquireExclusive() TaskLock_AcquireExclusive() +#define StatsLock_ReleaseExclusive() TaskLock_ReleaseExclusive() +#define StatsLock_AcquireShared() StatsLock_AcquireExclusive() +#define StatsLock_ReleaseShared() StatsLock_ReleaseExclusive() +#endif + +// Normally we would just call the C library wcstol, but since we can't use the +// C runtime, we'll supply our own function as an understudy. +static DWORD +MyTStrToL(TCHAR const* str) +{ + if (!str) { + return 0; + } + + int len = lstrlen(str); + DWORD place = 1; + DWORD rv = 0; + for (int i = len - 1; i >= 0; --i) { + int digit = str[i] - 0x30; + rv += digit * place; + place *= 10; + } + return rv; +} + +PTSTR NSIS_SetRegStr(UINT Reg, LPCTSTR Value) +{ + PTSTR s = g_N_Vars + (Reg * g_N_CCH); + lstrcpy(s, Value); + return s; +} +#define NSIS_SetRegStrEmpty(r) NSIS_SetRegStr(r, _T("")) +void NSIS_SetRegUINT(UINT Reg, UINT Value) +{ + TCHAR buf[32]; + wsprintf(buf, _T("%u"), Value); + NSIS_SetRegStr(Reg, buf); +} +#define StackFreeItem(pI) GlobalFree(pI) +NSIS::stack_t* StackPopItem(NSIS::stack_t**ppST) +{ + if (*ppST) + { + NSIS::stack_t*pItem = *ppST; + *ppST = pItem->next; + return pItem; + } + return NULL; +} + +void Reset() +{ + // The g_hGETStartedEvent event is used to make sure that the Get() call will + // acquire the lock before the Reset() call acquires the lock. + if (g_hGETStartedEvent) { + TRACE(_T("InetBgDl: waiting on g_hGETStartedEvent\n")); + WaitForSingleObject(g_hGETStartedEvent, INFINITE); + CloseHandle(g_hGETStartedEvent); + g_hGETStartedEvent = NULL; + } + + TaskLock_AcquireExclusive(); +#ifndef ONELOCKTORULETHEMALL + StatsLock_AcquireExclusive(); +#endif + g_FilesTotal = 0; // This causes the Task thread to exit the transfer loop + if (g_hThread) + { + TRACE(_T("InetBgDl: waiting on g_hThread\n")); + if (WAIT_OBJECT_0 != WaitForSingleObject(g_hThread, 5 * 1000)) + { + TRACE(_T("InetBgDl: terminating g_hThread\n")); + // Suspend the thread so that it's not still trying to use these handles + // that we're about to close out from under it. + SuspendThread(g_hThread); + if (g_hInetFile) { + InternetCloseHandle(g_hInetFile); + g_hInetFile = nullptr; + } + if (g_hInetSes) { + InternetCloseHandle(g_hInetSes); + g_hInetSes = nullptr; + } + TerminateThread(g_hThread, ERROR_OPERATION_ABORTED); + } + CloseHandle(g_hThread); + g_hThread = NULL; + } + g_FilesTotal = 0; + g_FilesCompleted = 0; + g_Status = STATUS_INITIAL; +#ifndef ONELOCKTORULETHEMALL + StatsLock_ReleaseExclusive(); +#endif + for (NSIS::stack_t*pTmpTast,*pTask = g_pLocations; pTask ;) + { + pTmpTast = pTask; + pTask = pTask->next; + StackFreeItem(pTmpTast); + } + g_pLocations = NULL; + TaskLock_ReleaseExclusive(); +} + +UINT_PTR __cdecl NSISPluginCallback(UINT Event) +{ + switch(Event) + { + case NSPIM_UNLOAD: + Reset(); + break; + } + return NULL; +} + +void __stdcall InetStatusCallback(HINTERNET hInternet, DWORD_PTR dwContext, + DWORD dwInternetStatus, + LPVOID lpvStatusInformation, + DWORD dwStatusInformationLength) +{ + if (dwInternetStatus == INTERNET_STATUS_NAME_RESOLVED) { + // If we're in the process of being reset, don't try to update g_ServerIP; + // there's no need for it, and Reset() will be holding the StatsLock, so + // we'll hang here and block the reset if we try to acquire it. + if (g_FilesTotal != 0) { + // The documentation states the IP address is a PCTSTR but it is usually a + // PCSTR and only sometimes a PCTSTR. + StatsLock_AcquireExclusive(); + wsprintf(g_ServerIP, _T("%S"), lpvStatusInformation); + if (lstrlen(g_ServerIP) == 1) + { + wsprintf(g_ServerIP, _T("%s"), lpvStatusInformation); + } + StatsLock_ReleaseExclusive(); + } + } + +#if defined(PLUGIN_DEBUG) + switch (dwInternetStatus) + { + case INTERNET_STATUS_RESOLVING_NAME: + TRACE(_T("InetBgDl: INTERNET_STATUS_RESOLVING_NAME (%d), name=%s\n"), + dwStatusInformationLength, lpvStatusInformation); + break; + case INTERNET_STATUS_NAME_RESOLVED: + TRACE(_T("InetBgDl: INTERNET_STATUS_NAME_RESOLVED (%d), resolved name=%s\n"), + dwStatusInformationLength, g_ServerIP); + break; + case INTERNET_STATUS_CONNECTING_TO_SERVER: + TRACE(_T("InetBgDl: INTERNET_STATUS_CONNECTING_TO_SERVER (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_CONNECTED_TO_SERVER: + TRACE(_T("InetBgDl: INTERNET_STATUS_CONNECTED_TO_SERVER (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_SENDING_REQUEST: + TRACE(_T("InetBgDl: INTERNET_STATUS_SENDING_REQUEST (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_REQUEST_SENT: + TRACE(_T("InetBgDl: INTERNET_STATUS_REQUEST_SENT (%d), bytes sent=%d\n"), + dwStatusInformationLength, lpvStatusInformation); + break; + case INTERNET_STATUS_RECEIVING_RESPONSE: + TRACE(_T("InetBgDl: INTERNET_STATUS_RECEIVING_RESPONSE (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_RESPONSE_RECEIVED: + TRACE(_T("InetBgDl: INTERNET_STATUS_RESPONSE_RECEIVED (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_CTL_RESPONSE_RECEIVED: + TRACE(_T("InetBgDl: INTERNET_STATUS_CTL_RESPONSE_RECEIVED (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_PREFETCH: + TRACE(_T("InetBgDl: INTERNET_STATUS_PREFETCH (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_CLOSING_CONNECTION: + TRACE(_T("InetBgDl: INTERNET_STATUS_CLOSING_CONNECTION (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_CONNECTION_CLOSED: + TRACE(_T("InetBgDl: INTERNET_STATUS_CONNECTION_CLOSED (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_HANDLE_CREATED: + TRACE(_T("InetBgDl: INTERNET_STATUS_HANDLE_CREATED (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_HANDLE_CLOSING: + TRACE(_T("InetBgDl: INTERNET_STATUS_HANDLE_CLOSING (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_DETECTING_PROXY: + TRACE(_T("InetBgDl: INTERNET_STATUS_DETECTING_PROXY (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_REQUEST_COMPLETE: + TRACE(_T("InetBgDl: INTERNET_STATUS_REQUEST_COMPLETE (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_REDIRECT: + TRACE(_T("InetBgDl: INTERNET_STATUS_REDIRECT (%d), new url=%s\n"), + dwStatusInformationLength, lpvStatusInformation); + break; + case INTERNET_STATUS_INTERMEDIATE_RESPONSE: + TRACE(_T("InetBgDl: INTERNET_STATUS_INTERMEDIATE_RESPONSE (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_USER_INPUT_REQUIRED: + TRACE(_T("InetBgDl: INTERNET_STATUS_USER_INPUT_REQUIRED (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_STATE_CHANGE: + TRACE(_T("InetBgDl: INTERNET_STATUS_STATE_CHANGE (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_COOKIE_SENT: + TRACE(_T("InetBgDl: INTERNET_STATUS_COOKIE_SENT (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_COOKIE_RECEIVED: + TRACE(_T("InetBgDl: INTERNET_STATUS_COOKIE_RECEIVED (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_PRIVACY_IMPACTED: + TRACE(_T("InetBgDl: INTERNET_STATUS_PRIVACY_IMPACTED (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_P3P_HEADER: + TRACE(_T("InetBgDl: INTERNET_STATUS_P3P_HEADER (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_P3P_POLICYREF: + TRACE(_T("InetBgDl: INTERNET_STATUS_P3P_POLICYREF (%d)\n"), + dwStatusInformationLength); + break; + case INTERNET_STATUS_COOKIE_HISTORY: + TRACE(_T("InetBgDl: INTERNET_STATUS_COOKIE_HISTORY (%d)\n"), + dwStatusInformationLength); + break; + default: + TRACE(_T("InetBgDl: Unknown Status %d\n"), dwInternetStatus); + break; + } +#endif +} + +DWORD CALLBACK TaskThreadProc(LPVOID ThreadParam) +{ + NSIS::stack_t *pURL,*pFile; + DWORD cbio = sizeof(DWORD); + DWORD previouslyWritten = 0, writtenThisSession = 0; + HANDLE hLocalFile; + bool completedFile = false; +startnexttask: + hLocalFile = INVALID_HANDLE_VALUE; + pFile = NULL; + TaskLock_AcquireExclusive(); + // Now that we've acquired the lock, we can set the event to indicate this. + // SetEvent will likely never fail, but if it does we should set it to NULL + // to avoid anyone waiting on it. + if (!SetEvent(g_hGETStartedEvent)) { + CloseHandle(g_hGETStartedEvent); + g_hGETStartedEvent = NULL; + } + pURL = g_pLocations; + if (pURL) + { + pFile = pURL->next; + g_pLocations = pFile->next; + } +#ifndef ONELOCKTORULETHEMALL + StatsLock_AcquireExclusive(); +#endif + if (completedFile) + { + ++g_FilesCompleted; + } + completedFile = false; + g_cbCurrXF = 0; + g_cbCurrTot = FILESIZE_UNKNOWN; + if (!pURL) + { + if (g_FilesTotal) + { + if (g_FilesTotal == g_FilesCompleted) + { + g_Status = STATUS_COMPLETEDALL; + } + } + g_hThread = NULL; + } +#ifndef ONELOCKTORULETHEMALL + StatsLock_ReleaseExclusive(); +#endif + TaskLock_ReleaseExclusive(); + + if (!pURL) + { + if (0) + { +diegle: + DWORD gle = GetLastError(); + //TODO? if (ERROR_INTERNET_EXTENDED_ERROR==gle) InternetGetLastResponseInfo(...) + g_Status = STATUS_ERR_GETLASTERROR; + } +die: + if (g_hInetSes) + { + InternetCloseHandle(g_hInetSes); + g_hInetSes = nullptr; + } + if (INVALID_HANDLE_VALUE != hLocalFile) + { + CloseHandle(hLocalFile); + } + StackFreeItem(pURL); + StackFreeItem(pFile); + return 0; + } + + if (!g_hInetSes) + { + g_hInetSes = InternetOpen(USERAGENT, INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0); + if (!g_hInetSes) + { + TRACE(_T("InetBgDl: InternetOpen failed with gle=%u\n"), + GetLastError()); + goto diegle; + } + InternetSetStatusCallback(g_hInetSes, (INTERNET_STATUS_CALLBACK)InetStatusCallback); + + //msdn.microsoft.com/library/default.asp?url=/workshop/components/offline/offline.asp#Supporting Offline Browsing in Applications and Components + ULONG longOpt; + DWORD cbio = sizeof(ULONG); + if (InternetQueryOption(g_hInetSes, INTERNET_OPTION_CONNECTED_STATE, &longOpt, &cbio)) + { + if (INTERNET_STATE_DISCONNECTED_BY_USER&longOpt) + { + INTERNET_CONNECTED_INFO ci = {INTERNET_STATE_CONNECTED, 0}; + InternetSetOption(g_hInetSes, INTERNET_OPTION_CONNECTED_STATE, &ci, sizeof(ci)); + } + } + + // Change the default connect timeout if specified. + if(g_ConnectTimeout > 0) + { + InternetSetOption(g_hInetSes, INTERNET_OPTION_CONNECT_TIMEOUT, + &g_ConnectTimeout, sizeof(g_ConnectTimeout)); + } + + // Change the default receive timeout if specified. + if (g_ReceiveTimeout) + { + InternetSetOption(g_hInetSes, INTERNET_OPTION_RECEIVE_TIMEOUT, + &g_ReceiveTimeout, sizeof(DWORD)); + } + } + + DWORD ec = ERROR_SUCCESS; + hLocalFile = CreateFile(pFile->text, GENERIC_READ | GENERIC_WRITE, + FILE_SHARE_READ | FILE_SHARE_DELETE, + NULL, OPEN_ALWAYS, 0, NULL); + if (INVALID_HANDLE_VALUE == hLocalFile) + { + TRACE(_T("InetBgDl: CreateFile file handle invalid\n")); + goto diegle; + } + if (GetLastError() == ERROR_ALREADY_EXISTS) { + // Resuming a download that was started earlier and then aborted. + previouslyWritten = GetFileSize(hLocalFile, NULL); + g_cbCurrXF = previouslyWritten; + SetFilePointer(hLocalFile, previouslyWritten, NULL, FILE_BEGIN); + } + + const DWORD IOURedirFlags = INTERNET_FLAG_IGNORE_REDIRECT_TO_HTTP | + INTERNET_FLAG_IGNORE_REDIRECT_TO_HTTPS; + const DWORD IOUCacheFlags = INTERNET_FLAG_RESYNCHRONIZE | + INTERNET_FLAG_NO_CACHE_WRITE | + INTERNET_FLAG_PRAGMA_NOCACHE | + INTERNET_FLAG_RELOAD; + const DWORD IOUCookieFlags = INTERNET_FLAG_NO_COOKIES; + DWORD IOUFlags = IOURedirFlags | IOUCacheFlags | IOUCookieFlags | + INTERNET_FLAG_NO_UI | INTERNET_FLAG_EXISTING_CONNECT; + + TCHAR *hostname = (TCHAR*) GlobalAlloc(GPTR, MAX_STRLEN * sizeof(TCHAR)), + *urlpath = (TCHAR*) GlobalAlloc(GPTR, MAX_STRLEN * sizeof(TCHAR)), + *extrainfo = (TCHAR*) GlobalAlloc(GPTR, MAX_STRLEN * sizeof(TCHAR)); + + URL_COMPONENTS uc = { sizeof(URL_COMPONENTS), NULL, 0, (INTERNET_SCHEME)0, + hostname, MAX_STRLEN, (INTERNET_PORT)0, NULL, 0, + NULL, 0, urlpath, MAX_STRLEN, extrainfo, MAX_STRLEN}; + uc.dwHostNameLength = uc.dwUrlPathLength = uc.dwExtraInfoLength = MAX_STRLEN; + + if (!InternetCrackUrl(pURL->text, 0, ICU_ESCAPE, &uc)) + { + // Bad url or param passed in + TRACE(_T("InetBgDl: InternetCrackUrl false with url=%s, gle=%u\n"), + pURL->text, GetLastError()); + goto diegle; + } + + TRACE(_T("InetBgDl: scheme_id=%d, hostname=%s, port=%d, urlpath=%s, extrainfo=%s\n"), + uc.nScheme, hostname, uc.nPort, urlpath, extrainfo); + + // Only http and https are supported + if (uc.nScheme != INTERNET_SCHEME_HTTP && + uc.nScheme != INTERNET_SCHEME_HTTPS) + { + TRACE(_T("InetBgDl: only http and https is supported, aborting...\n")); + goto diegle; + } + + // Tell the server to pick up wherever we left off. + TCHAR headers[32]; + // We're skipping building the C runtime to keep the file size low, so we + // can't use a normal string initialization because that would call memset. + headers[0] = _T('\0'); + wsprintf(headers, _T("Range: bytes=%d-\r\n"), previouslyWritten); + + TRACE(_T("InetBgDl: calling InternetOpenUrl with url=%s\n"), pURL->text); + g_hInetFile = InternetOpenUrl(g_hInetSes, pURL->text, + headers, -1, IOUFlags | + (uc.nScheme == INTERNET_SCHEME_HTTPS ? + INTERNET_FLAG_SECURE : 0), 1); + if (!g_hInetFile) + { + TRACE(_T("InetBgDl: InternetOpenUrl failed with gle=%u\n"), + GetLastError()); + goto diegle; + } + + // Get the file length via the Content-Length header + FILESIZE_T cbThisFile; + cbio = sizeof(cbThisFile); + if (!HttpQueryInfo(g_hInetFile, + HTTP_QUERY_CONTENT_LENGTH | HTTP_QUERY_FLAG_NUMBER, + &cbThisFile, &cbio, NULL)) + { + cbThisFile = FILESIZE_UNKNOWN; + } + TRACE(_T("InetBgDl: file size=%d bytes\n"), cbThisFile); + + // Use a 4MiB read buffer for the connection. + // Bigger buffers will be faster. + // cbReadBufXF should be a multiple of g_cbBufXF. + const UINT cbReadBufXF = 4194304; + + // Up the default internal buffer size from 4096 to internalReadBufferSize. + DWORD internalReadBufferSize = cbReadBufXF; + if (!InternetSetOption(g_hInetFile, INTERNET_OPTION_READ_BUFFER_SIZE, + &internalReadBufferSize, sizeof(DWORD))) + { + TRACE(_T("InetBgDl: InternetSetOption failed to set read buffer size to %u bytes, gle=%u\n"), + internalReadBufferSize, GetLastError()); + + // Maybe it's too big, try half of the optimal value. If that fails just + // use the default. + internalReadBufferSize /= 2; + if (!InternetSetOption(g_hInetFile, INTERNET_OPTION_READ_BUFFER_SIZE, + &internalReadBufferSize, sizeof(DWORD))) + { + TRACE(_T("InetBgDl: InternetSetOption failed to set read buffer size ") \ + _T("to %u bytes (using default read buffer size), gle=%u\n"), + internalReadBufferSize, GetLastError()); + } + } + + for(;;) + { + DWORD cbio = 0, cbXF = 0; + BOOL retXF = InternetReadFile(g_hInetFile, g_bufXF, g_cbBufXF, &cbio); + if (!retXF) + { + ec = GetLastError(); + TRACE(_T("InetBgDl: InternetReadFile failed, gle=%u\n"), ec); + if (ERROR_INTERNET_CONNECTION_ABORTED == ec || + ERROR_INTERNET_CONNECTION_RESET == ec) + { + ec = ERROR_BROKEN_PIPE; + } + break; + } + + if (0 == cbio) + { + ASSERT(ERROR_SUCCESS == ec); + // EOF or broken connection? + // TODO: Can InternetQueryDataAvailable detect this? + + TRACE(_T("InetBgDl: InternetReadFile true with 0 cbio, cbThisFile=%d, gle=%u\n"), + cbThisFile, GetLastError()); + // If we haven't transferred all of the file, and we know how big the file + // is, and we have no more data to read from the HTTP request, then set a + // broken pipe error. Reading without StatsLock is ok in this thread. + if (FILESIZE_UNKNOWN != cbThisFile && writtenThisSession != cbThisFile) + { + TRACE(_T("InetBgDl: expected Content-Length of %d bytes, ") + _T("but transferred %d bytes\n"), + cbThisFile, writtenThisSession); + ec = ERROR_BROKEN_PIPE; + } + break; + } + + // Check if we canceled the download + if (0 == g_FilesTotal) + { + TRACE(_T("InetBgDl: 0 == g_FilesTotal, aborting transfer loop...\n")); + ec = ERROR_CANCELLED; + break; + } + + cbXF = cbio; + if (cbXF) + { + retXF = WriteFile(hLocalFile, g_bufXF, cbXF, &cbio, NULL); + if (!retXF || cbXF != cbio) + { + ec = GetLastError(); + break; + } + + StatsLock_AcquireExclusive(); + if (FILESIZE_UNKNOWN != cbThisFile) { + g_cbCurrTot = cbThisFile; + } + writtenThisSession += cbXF; + g_cbCurrXF += cbXF; + StatsLock_ReleaseExclusive(); + } + } + + TRACE(_T("InetBgDl: TaskThreadProc completed %s, ec=%u\n"), pURL->text, ec); + InternetCloseHandle(g_hInetFile); + g_hInetFile = nullptr; + if (ERROR_SUCCESS == ec) + { + if (INVALID_HANDLE_VALUE != hLocalFile) + { + CloseHandle(hLocalFile); + hLocalFile = INVALID_HANDLE_VALUE; + } + StackFreeItem(pURL); + StackFreeItem(pFile); + ++completedFile; + } + else if (ERROR_BROKEN_PIPE == ec) + { + g_Status = STATUS_ERR_CONNECTION_LOST; + goto die; + } + else + { + TRACE(_T("InetBgDl: failed with ec=%u\n"), ec); + SetLastError(ec); + goto diegle; + } + goto startnexttask; +} + +NSISPIEXPORTFUNC Get(HWND hwndNSIS, UINT N_CCH, TCHAR*N_Vars, NSIS::stack_t**ppST, NSIS::xparams_t*pX) +{ + pX->RegisterPluginCallback(g_hInst, NSISPluginCallback); + for (;;) + { + NSIS::stack_t*pURL = StackPopItem(ppST); + if (!pURL) + { + break; + } + + if (lstrcmpi(pURL->text, _T("/connecttimeout")) == 0) + { + NSIS::stack_t*pConnectTimeout = StackPopItem(ppST); + g_ConnectTimeout = MyTStrToL(pConnectTimeout->text) * 1000; + continue; + } + else if (lstrcmpi(pURL->text, _T("/receivetimeout")) == 0) + { + NSIS::stack_t*pReceiveTimeout = StackPopItem(ppST); + g_ReceiveTimeout = MyTStrToL(pReceiveTimeout->text) * 1000; + continue; + } + else if (lstrcmpi(pURL->text, _T("/reset")) == 0) + { + StackFreeItem(pURL); + Reset(); + continue; + } + else if (lstrcmpi(pURL->text, _T("/end")) == 0) + { +freeurlandexit: + StackFreeItem(pURL); + break; + } + + NSIS::stack_t*pFile = StackPopItem(ppST); + if (!pFile) + { + goto freeurlandexit; + } + + TaskLock_AcquireExclusive(); + + pFile->next = NULL; + pURL->next = pFile; + NSIS::stack_t*pTasksTail = g_pLocations; + while(pTasksTail && pTasksTail->next) pTasksTail = pTasksTail->next; + if (pTasksTail) + { + pTasksTail->next = pURL; + } + else + { + g_pLocations = pURL; + } + + if (!g_hThread) + { + DWORD tid; + if (g_hGETStartedEvent) { + CloseHandle(g_hGETStartedEvent); + } + g_hGETStartedEvent = CreateEvent(NULL, TRUE, FALSE, NULL); + g_hThread = CreateThread(NULL, 0, TaskThreadProc, NULL, 0, &tid); + } + + if (!g_hThread) + { + goto freeurlandexit; + } + +#ifndef ONELOCKTORULETHEMALL + StatsLock_AcquireExclusive(); +#endif + ++g_FilesTotal; +#ifndef ONELOCKTORULETHEMALL + StatsLock_ReleaseExclusive(); +#endif + TaskLock_ReleaseExclusive(); + } +} + +NSISPIEXPORTFUNC GetStats(HWND hwndNSIS, UINT N_CCH, TCHAR*N_Vars, NSIS::stack_t**ppST, NSIS::xparams_t*pX) +{ + NSISPI_INITGLOBALS(N_CCH, N_Vars); + StatsLock_AcquireShared(); + NSIS_SetRegUINT(0, g_Status); + NSIS_SetRegUINT(1, g_FilesCompleted); + NSIS_SetRegUINT(2, g_FilesTotal - g_FilesCompleted); + NSIS_SetRegUINT(3, g_cbCurrXF); + NSIS_SetRegStrEmpty(4); + if (FILESIZE_UNKNOWN != g_cbCurrTot) + { + NSIS_SetRegUINT(4, g_cbCurrTot); + } + NSIS_SetRegStr(5, g_ServerIP); + StatsLock_ReleaseShared(); +} + +BOOL WINAPI DllMain(HINSTANCE hInst, ULONG Reason, LPVOID pCtx) +{ + if (DLL_PROCESS_ATTACH==Reason) + { + g_hInst=hInst; + InitializeCriticalSection(&g_CritLock); + } + return TRUE; +} |