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-rw-r--r--other-licenses/nsis/Contrib/ServicesHelper/Services.cpp241
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diff --git a/other-licenses/nsis/Contrib/ServicesHelper/Services.cpp b/other-licenses/nsis/Contrib/ServicesHelper/Services.cpp
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index 000000000..5c3d2fe59
--- /dev/null
+++ b/other-licenses/nsis/Contrib/ServicesHelper/Services.cpp
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <windows.h>
+#include "../../../../toolkit/mozapps/update/common/pathhash.h"
+
+#pragma comment(lib, "advapi32.lib")
+
+typedef struct _stack_t {
+ struct _stack_t *next;
+ TCHAR text[MAX_PATH];
+} stack_t;
+
+int popstring(stack_t **stacktop, LPTSTR str, int len);
+void pushstring(stack_t **stacktop, LPCTSTR str, int len);
+
+/**
+ * Determines if the specified service exists or not
+ *
+ * @param serviceName The name of the service to check
+ * @param exists Whether or not the service exists
+ * @return TRUE if there were no errors
+ */
+static BOOL
+IsServiceInstalled(LPCWSTR serviceName, BOOL &exists)
+{
+ exists = FALSE;
+
+ // Get a handle to the local computer SCM database with full access rights.
+ SC_HANDLE serviceManager = OpenSCManager(NULL, NULL,
+ SC_MANAGER_ENUMERATE_SERVICE);
+ if (!serviceManager) {
+ return FALSE;
+ }
+
+ SC_HANDLE serviceHandle = OpenServiceW(serviceManager,
+ serviceName,
+ SERVICE_QUERY_CONFIG);
+ if (!serviceHandle && GetLastError() != ERROR_SERVICE_DOES_NOT_EXIST) {
+ CloseServiceHandle(serviceManager);
+ return FALSE;
+ }
+
+ if (serviceHandle) {
+ CloseServiceHandle(serviceHandle);
+ exists = TRUE;
+ }
+
+ CloseServiceHandle(serviceManager);
+ return TRUE;
+}
+
+/**
+ * Determines if the specified service is installed or not
+ *
+ * @param stacktop A pointer to the top of the stack
+ * @param variables A pointer to the NSIS variables
+ * @return 0 if the service does not exist
+ * 1 if the service does exist
+ * -1 if there was an error.
+ */
+extern "C" void __declspec(dllexport)
+IsInstalled(HWND hwndParent, int string_size,
+ TCHAR *variables, stack_t **stacktop, void *extra)
+{
+ TCHAR tmp[MAX_PATH] = { L'\0' };
+ WCHAR serviceName[MAX_PATH] = { '\0' };
+ popstring(stacktop, tmp, MAX_PATH);
+
+#if !defined(UNICODE)
+ MultiByteToWideChar(CP_ACP, 0, tmp, -1, serviceName, MAX_PATH);
+#else
+ wcscpy(serviceName, tmp);
+#endif
+
+ BOOL serviceInstalled;
+ if (!IsServiceInstalled(serviceName, serviceInstalled)) {
+ pushstring(stacktop, TEXT("-1"), 3);
+ } else {
+ pushstring(stacktop, serviceInstalled ? TEXT("1") : TEXT("0"), 2);
+ }
+}
+
+/**
+ * Stops the specified service.
+ *
+ * @param serviceName The name of the service to stop
+ * @return TRUE if the operation was successful
+ */
+static BOOL
+StopService(LPCWSTR serviceName)
+{
+ // Get a handle to the local computer SCM database with full access rights.
+ SC_HANDLE serviceManager = OpenSCManager(NULL, NULL,
+ SC_MANAGER_ENUMERATE_SERVICE);
+ if (!serviceManager) {
+ return FALSE;
+ }
+
+ SC_HANDLE serviceHandle = OpenServiceW(serviceManager,
+ serviceName,
+ SERVICE_STOP);
+ if (!serviceHandle) {
+ CloseServiceHandle(serviceManager);
+ return FALSE;
+ }
+
+ //Stop the service so it deletes faster and so the uninstaller
+ // can actually delete its EXE.
+ DWORD totalWaitTime = 0;
+ SERVICE_STATUS status;
+ static const int maxWaitTime = 1000 * 60; // Never wait more than a minute
+ BOOL stopped = FALSE;
+ if (ControlService(serviceHandle, SERVICE_CONTROL_STOP, &status)) {
+ do {
+ Sleep(status.dwWaitHint);
+ // + 10 milliseconds to make sure we always approach maxWaitTime
+ totalWaitTime += (status.dwWaitHint + 10);
+ if (status.dwCurrentState == SERVICE_STOPPED) {
+ stopped = true;
+ break;
+ } else if (totalWaitTime > maxWaitTime) {
+ break;
+ }
+ } while (QueryServiceStatus(serviceHandle, &status));
+ }
+
+ CloseServiceHandle(serviceHandle);
+ CloseServiceHandle(serviceManager);
+ return stopped;
+}
+
+/**
+ * Stops the specified service
+ *
+ * @param stacktop A pointer to the top of the stack
+ * @param variables A pointer to the NSIS variables
+ * @return 1 if the service was stopped, 0 on error
+ */
+extern "C" void __declspec(dllexport)
+Stop(HWND hwndParent, int string_size,
+ TCHAR *variables, stack_t **stacktop, void *extra)
+{
+ TCHAR tmp[MAX_PATH] = { L'\0' };
+ WCHAR serviceName[MAX_PATH] = { '\0' };
+
+ popstring(stacktop, tmp, MAX_PATH);
+
+#if !defined(UNICODE)
+ MultiByteToWideChar(CP_ACP, 0, tmp, -1, serviceName, MAX_PATH);
+#else
+ wcscpy(serviceName, tmp);
+#endif
+
+ if (StopService(serviceName)) {
+ pushstring(stacktop, TEXT("1"), 2);
+ } else {
+ pushstring(stacktop, TEXT("0"), 2);
+ }
+}
+
+/**
+ * Determines a unique registry path from a file or directory path
+ *
+ * @param stacktop A pointer to the top of the stack
+ * @param variables A pointer to the NSIS variables
+ * @return The unique registry path or an empty string on error
+ */
+extern "C" void __declspec(dllexport)
+PathToUniqueRegistryPath(HWND hwndParent, int string_size,
+ TCHAR *variables, stack_t **stacktop,
+ void *extra)
+{
+ TCHAR tmp[MAX_PATH] = { L'\0' };
+ WCHAR installBasePath[MAX_PATH] = { '\0' };
+ popstring(stacktop, tmp, MAX_PATH);
+
+#if !defined(UNICODE)
+ MultiByteToWideChar(CP_ACP, 0, tmp, -1, installBasePath, MAX_PATH);
+#else
+ wcscpy(installBasePath, tmp);
+#endif
+
+ WCHAR registryPath[MAX_PATH + 1] = { '\0' };
+ if (CalculateRegistryPathFromFilePath(installBasePath, registryPath)) {
+ pushstring(stacktop, registryPath, wcslen(registryPath) + 1);
+ } else {
+ pushstring(stacktop, TEXT(""), 1);
+ }
+}
+
+BOOL WINAPI
+DllMain(HANDLE hInst, ULONG ul_reason_for_call, LPVOID lpReserved)
+{
+ return TRUE;
+}
+
+/**
+ * Removes an element from the top of the NSIS stack
+ *
+ * @param stacktop A pointer to the top of the stack
+ * @param str The string to pop to
+ * @param len The max length
+ * @return 0 on success
+*/
+int popstring(stack_t **stacktop, TCHAR *str, int len)
+{
+ // Removes the element from the top of the stack and puts it in the buffer
+ stack_t *th;
+ if (!stacktop || !*stacktop) {
+ return 1;
+ }
+
+ th = (*stacktop);
+ lstrcpyn(str,th->text, len);
+ *stacktop = th->next;
+ GlobalFree((HGLOBAL)th);
+ return 0;
+}
+
+/**
+ * Adds an element to the top of the NSIS stack
+ *
+ * @param stacktop A pointer to the top of the stack
+ * @param str The string to push on the stack
+ * @param len The length of the string to push on the stack
+ * @return 0 on success
+*/
+void pushstring(stack_t **stacktop, const TCHAR *str, int len)
+{
+ stack_t *th;
+ if (!stacktop) {
+ return;
+ }
+
+ th = (stack_t*)GlobalAlloc(GPTR, sizeof(stack_t) + len);
+ lstrcpyn(th->text, str, len);
+ th->next = *stacktop;
+ *stacktop = th;
+}
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