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-rw-r--r--uriloader/exthandler/win/nsMIMEInfoWin.cpp913
-rw-r--r--uriloader/exthandler/win/nsMIMEInfoWin.h79
-rw-r--r--uriloader/exthandler/win/nsOSHelperAppService.cpp609
-rw-r--r--uriloader/exthandler/win/nsOSHelperAppService.h76
4 files changed, 1677 insertions, 0 deletions
diff --git a/uriloader/exthandler/win/nsMIMEInfoWin.cpp b/uriloader/exthandler/win/nsMIMEInfoWin.cpp
new file mode 100644
index 0000000000..758b2018a7
--- /dev/null
+++ b/uriloader/exthandler/win/nsMIMEInfoWin.cpp
@@ -0,0 +1,913 @@
+/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * 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 "nsArrayEnumerator.h"
+#include "nsComponentManagerUtils.h"
+#include "nsCOMArray.h"
+#include "nsLocalFile.h"
+#include "nsMIMEInfoWin.h"
+#include "nsIMIMEService.h"
+#include "nsNetUtil.h"
+#include <windows.h>
+#include <shellapi.h>
+#include "nsIMutableArray.h"
+#include "nsTArray.h"
+#include <shlobj.h>
+#include "nsIWindowsRegKey.h"
+#include "nsUnicharUtils.h"
+#include "nsTextToSubURI.h"
+#include "nsVariant.h"
+#include "mozilla/CmdLineAndEnvUtils.h"
+#include "mozilla/ShellHeaderOnlyUtils.h"
+#include "mozilla/StaticPrefs_browser.h"
+#include "mozilla/UrlmonHeaderOnlyUtils.h"
+#include "mozilla/UniquePtrExtensions.h"
+
+#define RUNDLL32_EXE L"\\rundll32.exe"
+
+NS_IMPL_ISUPPORTS_INHERITED(nsMIMEInfoWin, nsMIMEInfoBase, nsIPropertyBag)
+
+nsMIMEInfoWin::~nsMIMEInfoWin() {}
+
+nsresult nsMIMEInfoWin::LaunchDefaultWithFile(nsIFile* aFile) {
+ // Launch the file, unless it is an executable.
+ bool executable = true;
+ aFile->IsExecutable(&executable);
+ if (executable) return NS_ERROR_FAILURE;
+
+ return aFile->Launch();
+}
+
+nsresult nsMIMEInfoWin::ShellExecuteWithIFile(nsIFile* aExecutable, int aArgc,
+ const wchar_t** aArgv) {
+ nsresult rv;
+
+ NS_ASSERTION(aArgc >= 1, "aArgc must be at least 1");
+
+ nsAutoString execPath;
+ rv = aExecutable->GetTarget(execPath);
+ if (NS_FAILED(rv) || execPath.IsEmpty()) {
+ rv = aExecutable->GetPath(execPath);
+ }
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+
+ auto assembledArgs = mozilla::MakeCommandLine(aArgc, aArgv);
+ if (!assembledArgs) {
+ return NS_ERROR_FILE_EXECUTION_FAILED;
+ }
+
+ _bstr_t execPathBStr(execPath.get());
+ // Pass VT_ERROR/DISP_E_PARAMNOTFOUND to omit an optional RPC parameter
+ // to execute a file with the default verb.
+ _variant_t verbDefault(DISP_E_PARAMNOTFOUND, VT_ERROR);
+ _variant_t workingDir;
+ _variant_t showCmd(SW_SHOWNORMAL);
+
+ // Ask Explorer to ShellExecute on our behalf, as some applications such as
+ // Skype for Business do not start correctly when inheriting our process's
+ // migitation policies.
+ // It does not work in a special environment such as Citrix. In such a case
+ // we fall back to launching an application as a child process. We need to
+ // find a way to handle the combination of these interop issues.
+ mozilla::LauncherVoidResult shellExecuteOk = mozilla::ShellExecuteByExplorer(
+ execPathBStr, assembledArgs.get(), verbDefault, workingDir, showCmd);
+ if (shellExecuteOk.isErr()) {
+ // No need to pass assembledArgs to LaunchWithIProcess. aArgv will be
+ // processed in nsProcess::RunProcess.
+ return LaunchWithIProcess(aExecutable, aArgc,
+ reinterpret_cast<const char16_t**>(aArgv));
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoWin::LaunchWithFile(nsIFile* aFile) {
+ nsresult rv;
+
+ // it doesn't make any sense to call this on protocol handlers
+ NS_ASSERTION(mClass == eMIMEInfo,
+ "nsMIMEInfoBase should have mClass == eMIMEInfo");
+
+ if (AutomationOnlyCheckIfLaunchStubbed(aFile)) {
+ return NS_OK;
+ }
+
+ if (mPreferredAction == useSystemDefault) {
+ nsCOMPtr<nsIFile> defaultApp = GetDefaultApplication();
+ if (defaultApp &&
+ mozilla::StaticPrefs::browser_pdf_launchDefaultEdgeAsApp()) {
+ // Since Edgium is the default handler for PDF and other kinds of files,
+ // if we're using the OS default and it's Edgium prefer its app mode so it
+ // operates as a viewer (without browser toolbars). Bug 1632277.
+ nsAutoCString defaultAppExecutable;
+ rv = defaultApp->GetNativeLeafName(defaultAppExecutable);
+ if (NS_SUCCEEDED(rv) &&
+ defaultAppExecutable.LowerCaseEqualsLiteral("msedge.exe")) {
+ nsAutoString path;
+ rv = aFile->GetPath(path);
+ if (NS_SUCCEEDED(rv)) {
+ // If the --app flag doesn't work we'll want to fallback to a
+ // regular path. Send two args so we call `msedge.exe --app={path}
+ // {path}`.
+ nsAutoString appArg;
+ appArg.AppendLiteral("--app=");
+ appArg.Append(path);
+ const wchar_t* argv[] = {appArg.get(), path.get()};
+
+ return ShellExecuteWithIFile(defaultApp, mozilla::ArrayLength(argv),
+ argv);
+ }
+ }
+ }
+ return LaunchDefaultWithFile(aFile);
+ }
+
+ if (mPreferredAction == useHelperApp) {
+ if (!mPreferredApplication) return NS_ERROR_FILE_NOT_FOUND;
+
+ // at the moment, we only know how to hand files off to local handlers
+ nsCOMPtr<nsILocalHandlerApp> localHandler =
+ do_QueryInterface(mPreferredApplication, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsCOMPtr<nsIFile> executable;
+ rv = localHandler->GetExecutable(getter_AddRefs(executable));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // Deal with local dll based handlers
+ nsCString filename;
+ executable->GetNativeLeafName(filename);
+ if (filename.Length() > 4) {
+ nsCString extension(Substring(filename, filename.Length() - 4, 4));
+
+ if (extension.LowerCaseEqualsLiteral(".dll")) {
+ nsAutoString args;
+
+ // executable is rundll32, everything else is a list of parameters,
+ // including the dll handler.
+ if (!GetDllLaunchInfo(executable, aFile, args, false))
+ return NS_ERROR_INVALID_ARG;
+
+ WCHAR rundll32Path[MAX_PATH + sizeof(RUNDLL32_EXE) / sizeof(WCHAR) +
+ 1] = {L'\0'};
+ if (!GetSystemDirectoryW(rundll32Path, MAX_PATH)) {
+ return NS_ERROR_FILE_NOT_FOUND;
+ }
+ lstrcatW(rundll32Path, RUNDLL32_EXE);
+
+ SHELLEXECUTEINFOW seinfo;
+ memset(&seinfo, 0, sizeof(seinfo));
+ seinfo.cbSize = sizeof(SHELLEXECUTEINFOW);
+ seinfo.fMask = 0;
+ seinfo.hwnd = nullptr;
+ seinfo.lpVerb = nullptr;
+ seinfo.lpFile = rundll32Path;
+ seinfo.lpParameters = args.get();
+ seinfo.lpDirectory = nullptr;
+ seinfo.nShow = SW_SHOWNORMAL;
+ if (ShellExecuteExW(&seinfo)) return NS_OK;
+
+ switch ((LONG_PTR)seinfo.hInstApp) {
+ case 0:
+ case SE_ERR_OOM:
+ return NS_ERROR_OUT_OF_MEMORY;
+ case SE_ERR_ACCESSDENIED:
+ return NS_ERROR_FILE_ACCESS_DENIED;
+ case SE_ERR_ASSOCINCOMPLETE:
+ case SE_ERR_NOASSOC:
+ return NS_ERROR_UNEXPECTED;
+ case SE_ERR_DDEBUSY:
+ case SE_ERR_DDEFAIL:
+ case SE_ERR_DDETIMEOUT:
+ return NS_ERROR_NOT_AVAILABLE;
+ case SE_ERR_DLLNOTFOUND:
+ return NS_ERROR_FAILURE;
+ case SE_ERR_SHARE:
+ return NS_ERROR_FILE_IS_LOCKED;
+ default:
+ switch (GetLastError()) {
+ case ERROR_FILE_NOT_FOUND:
+ return NS_ERROR_FILE_NOT_FOUND;
+ case ERROR_PATH_NOT_FOUND:
+ return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+ case ERROR_BAD_FORMAT:
+ return NS_ERROR_FILE_CORRUPTED;
+ }
+ }
+ return NS_ERROR_FILE_EXECUTION_FAILED;
+ }
+ }
+ nsAutoString path;
+ aFile->GetPath(path);
+ const wchar_t* argv[] = {path.get()};
+ return ShellExecuteWithIFile(executable, mozilla::ArrayLength(argv), argv);
+ }
+
+ return NS_ERROR_INVALID_ARG;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoWin::GetHasDefaultHandler(bool* _retval) {
+ // We have a default application if we have a description
+ // We can ShellExecute anything; however, callers are probably interested if
+ // there is really an application associated with this type of file
+ *_retval = !mDefaultAppDescription.IsEmpty();
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoWin::GetEnumerator(nsISimpleEnumerator** _retval) {
+ nsCOMArray<nsIVariant> properties;
+
+ nsCOMPtr<nsIVariant> variant;
+ GetProperty(u"defaultApplicationIconURL"_ns, getter_AddRefs(variant));
+ if (variant) properties.AppendObject(variant);
+
+ GetProperty(u"customApplicationIconURL"_ns, getter_AddRefs(variant));
+ if (variant) properties.AppendObject(variant);
+
+ return NS_NewArrayEnumerator(_retval, properties, NS_GET_IID(nsIVariant));
+}
+
+static nsresult GetIconURLVariant(nsIFile* aApplication, nsIVariant** _retval) {
+ nsAutoCString fileURLSpec;
+ NS_GetURLSpecFromFile(aApplication, fileURLSpec);
+ nsAutoCString iconURLSpec;
+ iconURLSpec.AssignLiteral("moz-icon://");
+ iconURLSpec += fileURLSpec;
+ RefPtr<nsVariant> writable(new nsVariant());
+ writable->SetAsAUTF8String(iconURLSpec);
+ writable.forget(_retval);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoWin::GetProperty(const nsAString& aName, nsIVariant** _retval) {
+ nsresult rv;
+ nsCOMPtr<nsIFile> defaultApp = GetDefaultApplication();
+ if (defaultApp && aName.EqualsLiteral(PROPERTY_DEFAULT_APP_ICON_URL)) {
+ rv = GetIconURLVariant(defaultApp, _retval);
+ NS_ENSURE_SUCCESS(rv, rv);
+ } else if (mPreferredApplication &&
+ aName.EqualsLiteral(PROPERTY_CUSTOM_APP_ICON_URL)) {
+ nsCOMPtr<nsILocalHandlerApp> localHandler =
+ do_QueryInterface(mPreferredApplication, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsCOMPtr<nsIFile> executable;
+ rv = localHandler->GetExecutable(getter_AddRefs(executable));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ rv = GetIconURLVariant(executable, _retval);
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+
+ return NS_OK;
+}
+
+// this implementation was pretty much copied verbatime from
+// Tony Robinson's code in nsExternalProtocolWin.cpp
+nsresult nsMIMEInfoWin::LoadUriInternal(nsIURI* aURL) {
+ nsresult rv = NS_OK;
+
+ // 1. Find the default app for this protocol
+ // 2. Set up the command line
+ // 3. Launch the app.
+
+ // For now, we'll just cheat essentially, check for the command line
+ // then just call ShellExecute()!
+
+ if (aURL) {
+ // extract the url spec from the url
+ nsAutoCString urlSpec;
+ aURL->GetAsciiSpec(urlSpec);
+
+ // Unescape non-ASCII characters in the URL
+ nsAutoString utf16Spec;
+ if (NS_FAILED(nsTextToSubURI::UnEscapeNonAsciiURI("UTF-8"_ns, urlSpec,
+ utf16Spec))) {
+ CopyASCIItoUTF16(urlSpec, utf16Spec);
+ }
+
+ // Ask the shell/urlmon to parse |utf16Spec| to avoid malformed URLs.
+ // Failure is indicative of a potential security issue so we should
+ // bail out if so.
+ mozilla::LauncherResult<_bstr_t> validatedUri =
+ mozilla::UrlmonValidateUri(utf16Spec.get());
+ if (validatedUri.isErr()) {
+ return NS_ERROR_FAILURE;
+ }
+
+ _variant_t args;
+ _variant_t verb(L"open");
+ _variant_t workingDir;
+ _variant_t showCmd(SW_SHOWNORMAL);
+
+ // To open a uri, we first try ShellExecuteByExplorer, which starts a new
+ // process as a child process of explorer.exe, because applications may not
+ // support the mitigation policies inherited from our process. If it fails,
+ // we fall back to ShellExecuteExW.
+ //
+ // For Thunderbird, however, there is a known issue that
+ // ShellExecuteByExplorer succeeds but explorer.exe shows an error popup
+ // if a uri to open includes credentials. This does not happen in Firefox
+ // because Firefox does not have to launch a process to open a uri.
+ //
+ // Since Thunderbird does not use mitigation policies which could cause
+ // compatibility issues, we get no benefit from using
+ // ShellExecuteByExplorer. Thus we skip it and go straight to
+ // ShellExecuteExW for Thunderbird.
+#ifndef MOZ_THUNDERBIRD
+ mozilla::LauncherVoidResult shellExecuteOk =
+ mozilla::ShellExecuteByExplorer(validatedUri.inspect(), args, verb,
+ workingDir, showCmd);
+ if (shellExecuteOk.isOk()) {
+ return NS_OK;
+ }
+#endif // MOZ_THUNDERBIRD
+
+ SHELLEXECUTEINFOW sinfo = {sizeof(sinfo)};
+ sinfo.fMask = SEE_MASK_NOASYNC;
+ sinfo.lpVerb = V_BSTR(&verb);
+ sinfo.nShow = showCmd;
+ sinfo.lpFile = validatedUri.inspect();
+
+ BOOL result = ShellExecuteExW(&sinfo);
+ if (!result || reinterpret_cast<LONG_PTR>(sinfo.hInstApp) < 32) {
+ rv = NS_ERROR_FAILURE;
+ }
+ }
+
+ return rv;
+}
+
+void nsMIMEInfoWin::UpdateDefaultInfoIfStale() {
+ if (!mIsDefaultAppInfoFresh) {
+ nsCOMPtr<nsIMIMEService> mime = do_GetService("@mozilla.org/mime;1");
+ if (mime) {
+ mime->UpdateDefaultAppInfo(static_cast<nsIMIMEInfo*>(this));
+ }
+ mIsDefaultAppInfoFresh = true;
+ }
+}
+
+// Given a path to a local file, return its nsILocalHandlerApp instance.
+bool nsMIMEInfoWin::GetLocalHandlerApp(const nsAString& aCommandHandler,
+ nsCOMPtr<nsILocalHandlerApp>& aApp) {
+ nsCOMPtr<nsIFile> locfile;
+ nsresult rv = NS_NewLocalFile(aCommandHandler, true, getter_AddRefs(locfile));
+ if (NS_FAILED(rv)) return false;
+
+ aApp = do_CreateInstance("@mozilla.org/uriloader/local-handler-app;1");
+ if (!aApp) return false;
+
+ aApp->SetExecutable(locfile);
+ return true;
+}
+
+// Return the cleaned up file path associated with a command verb
+// located in root/Applications.
+bool nsMIMEInfoWin::GetAppsVerbCommandHandler(const nsAString& appExeName,
+ nsAString& applicationPath,
+ bool edit) {
+ nsCOMPtr<nsIWindowsRegKey> appKey =
+ do_CreateInstance("@mozilla.org/windows-registry-key;1");
+ if (!appKey) return false;
+
+ // HKEY_CLASSES_ROOT\Applications\iexplore.exe
+ nsAutoString applicationsPath;
+ applicationsPath.AppendLiteral("Applications\\");
+ applicationsPath.Append(appExeName);
+
+ nsresult rv =
+ appKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, applicationsPath,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_FAILED(rv)) return false;
+
+ // Check for the NoOpenWith flag, if it exists
+ uint32_t value;
+ if (NS_SUCCEEDED(appKey->ReadIntValue(u"NoOpenWith"_ns, &value)) &&
+ value == 1)
+ return false;
+
+ nsAutoString dummy;
+ if (NS_SUCCEEDED(appKey->ReadStringValue(u"NoOpenWith"_ns, dummy)))
+ return false;
+
+ appKey->Close();
+
+ // HKEY_CLASSES_ROOT\Applications\iexplore.exe\shell\open\command
+ applicationsPath.AssignLiteral("Applications\\");
+ applicationsPath.Append(appExeName);
+ if (!edit)
+ applicationsPath.AppendLiteral("\\shell\\open\\command");
+ else
+ applicationsPath.AppendLiteral("\\shell\\edit\\command");
+
+ rv = appKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, applicationsPath,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_FAILED(rv)) return false;
+
+ nsAutoString appFilesystemCommand;
+ if (NS_SUCCEEDED(appKey->ReadStringValue(u""_ns, appFilesystemCommand))) {
+ // Expand environment vars, clean up any misc.
+ if (!nsLocalFile::CleanupCmdHandlerPath(appFilesystemCommand)) return false;
+
+ applicationPath = appFilesystemCommand;
+ return true;
+ }
+ return false;
+}
+
+// Return a fully populated command string based on
+// passing information. Used in launchWithFile to trace
+// back to the full handler path based on the dll.
+// (dll, targetfile, return args, open/edit)
+bool nsMIMEInfoWin::GetDllLaunchInfo(nsIFile* aDll, nsIFile* aFile,
+ nsAString& args, bool edit) {
+ if (!aDll || !aFile) return false;
+
+ nsString appExeName;
+ aDll->GetLeafName(appExeName);
+
+ nsCOMPtr<nsIWindowsRegKey> appKey =
+ do_CreateInstance("@mozilla.org/windows-registry-key;1");
+ if (!appKey) return false;
+
+ // HKEY_CLASSES_ROOT\Applications\iexplore.exe
+ nsAutoString applicationsPath;
+ applicationsPath.AppendLiteral("Applications\\");
+ applicationsPath.Append(appExeName);
+
+ nsresult rv =
+ appKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, applicationsPath,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_FAILED(rv)) return false;
+
+ // Check for the NoOpenWith flag, if it exists
+ uint32_t value;
+ rv = appKey->ReadIntValue(u"NoOpenWith"_ns, &value);
+ if (NS_SUCCEEDED(rv) && value == 1) return false;
+
+ nsAutoString dummy;
+ if (NS_SUCCEEDED(appKey->ReadStringValue(u"NoOpenWith"_ns, dummy)))
+ return false;
+
+ appKey->Close();
+
+ // HKEY_CLASSES_ROOT\Applications\iexplore.exe\shell\open\command
+ applicationsPath.AssignLiteral("Applications\\");
+ applicationsPath.Append(appExeName);
+ if (!edit)
+ applicationsPath.AppendLiteral("\\shell\\open\\command");
+ else
+ applicationsPath.AppendLiteral("\\shell\\edit\\command");
+
+ rv = appKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, applicationsPath,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_FAILED(rv)) return false;
+
+ nsAutoString appFilesystemCommand;
+ if (NS_SUCCEEDED(appKey->ReadStringValue(u""_ns, appFilesystemCommand))) {
+ // Replace embedded environment variables.
+ uint32_t bufLength =
+ ::ExpandEnvironmentStringsW(appFilesystemCommand.get(), nullptr, 0);
+ if (bufLength == 0) // Error
+ return false;
+
+ auto destination = mozilla::MakeUniqueFallible<wchar_t[]>(bufLength);
+ if (!destination) return false;
+ if (!::ExpandEnvironmentStringsW(appFilesystemCommand.get(),
+ destination.get(), bufLength))
+ return false;
+
+ appFilesystemCommand.Assign(destination.get());
+
+ // C:\Windows\System32\rundll32.exe "C:\Program Files\Windows
+ // Photo Gallery\PhotoViewer.dll", ImageView_Fullscreen %1
+ nsAutoString params;
+ constexpr auto rundllSegment = u"rundll32.exe "_ns;
+ int32_t index = appFilesystemCommand.Find(rundllSegment);
+ if (index > kNotFound) {
+ params.Append(
+ Substring(appFilesystemCommand, index + rundllSegment.Length()));
+ } else {
+ params.Append(appFilesystemCommand);
+ }
+
+ // check to make sure we have a %1 and fill it
+ constexpr auto percentOneParam = u"%1"_ns;
+ index = params.Find(percentOneParam);
+ if (index == kNotFound) // no parameter
+ return false;
+
+ nsString target;
+ aFile->GetTarget(target);
+ params.Replace(index, 2, target);
+
+ args = params;
+
+ return true;
+ }
+ return false;
+}
+
+// Return the cleaned up file path associated with a progid command
+// verb located in root.
+bool nsMIMEInfoWin::GetProgIDVerbCommandHandler(const nsAString& appProgIDName,
+ nsAString& applicationPath,
+ bool edit) {
+ nsCOMPtr<nsIWindowsRegKey> appKey =
+ do_CreateInstance("@mozilla.org/windows-registry-key;1");
+ if (!appKey) return false;
+
+ nsAutoString appProgId(appProgIDName);
+
+ // HKEY_CLASSES_ROOT\Windows.XPSReachViewer\shell\open\command
+ if (!edit)
+ appProgId.AppendLiteral("\\shell\\open\\command");
+ else
+ appProgId.AppendLiteral("\\shell\\edit\\command");
+
+ nsresult rv = appKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, appProgId,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_FAILED(rv)) return false;
+
+ nsAutoString appFilesystemCommand;
+ if (NS_SUCCEEDED(appKey->ReadStringValue(u""_ns, appFilesystemCommand))) {
+ // Expand environment vars, clean up any misc.
+ if (!nsLocalFile::CleanupCmdHandlerPath(appFilesystemCommand)) return false;
+
+ applicationPath = appFilesystemCommand;
+ return true;
+ }
+ return false;
+}
+
+// Helper routine used in tracking app lists. Converts path
+// entries to lower case and stores them in the trackList array.
+void nsMIMEInfoWin::ProcessPath(nsCOMPtr<nsIMutableArray>& appList,
+ nsTArray<nsString>& trackList,
+ const nsAString& appFilesystemCommand) {
+ nsAutoString lower(appFilesystemCommand);
+ ToLowerCase(lower);
+
+ // Don't include firefox.exe in the list
+ WCHAR exe[MAX_PATH + 1];
+ uint32_t len = GetModuleFileNameW(nullptr, exe, MAX_PATH);
+ if (len < MAX_PATH && len != 0) {
+ int32_t index = lower.Find(reinterpret_cast<const char16_t*>(exe));
+ if (index != -1) return;
+ }
+
+ nsCOMPtr<nsILocalHandlerApp> aApp;
+ if (!GetLocalHandlerApp(appFilesystemCommand, aApp)) return;
+
+ // Save in our main tracking arrays
+ appList->AppendElement(aApp);
+ trackList.AppendElement(lower);
+}
+
+// Helper routine that handles a compare between a path
+// and an array of paths.
+static bool IsPathInList(nsAString& appPath, nsTArray<nsString>& trackList) {
+ // trackList data is always lowercase, see ProcessPath
+ // above.
+ nsAutoString tmp(appPath);
+ ToLowerCase(tmp);
+
+ for (uint32_t i = 0; i < trackList.Length(); i++) {
+ if (tmp.Equals(trackList[i])) return true;
+ }
+ return false;
+}
+
+/**
+ * Returns a list of nsILocalHandlerApp objects containing local
+ * handlers associated with this mimeinfo. Implemented per
+ * platform using information in this object to generate the
+ * best list. Typically used for an "open with" style user
+ * option.
+ *
+ * @return nsIArray of nsILocalHandlerApp
+ */
+NS_IMETHODIMP
+nsMIMEInfoWin::GetPossibleLocalHandlers(nsIArray** _retval) {
+ nsresult rv;
+
+ *_retval = nullptr;
+
+ nsCOMPtr<nsIMutableArray> appList = do_CreateInstance("@mozilla.org/array;1");
+
+ if (!appList) return NS_ERROR_FAILURE;
+
+ nsTArray<nsString> trackList;
+
+ nsAutoCString fileExt;
+ GetPrimaryExtension(fileExt);
+
+ nsCOMPtr<nsIWindowsRegKey> regKey =
+ do_CreateInstance("@mozilla.org/windows-registry-key;1");
+ if (!regKey) return NS_ERROR_FAILURE;
+ nsCOMPtr<nsIWindowsRegKey> appKey =
+ do_CreateInstance("@mozilla.org/windows-registry-key;1");
+ if (!appKey) return NS_ERROR_FAILURE;
+
+ nsAutoString workingRegistryPath;
+
+ bool extKnown = false;
+ if (fileExt.IsEmpty()) {
+ extKnown = true;
+ // Mime type discovery is possible in some cases, through
+ // HKEY_CLASSES_ROOT\MIME\Database\Content Type, however, a number
+ // of file extensions related to mime type are simply not defined,
+ // (application/rss+xml & application/atom+xml are good examples)
+ // in which case we can only provide a generic list.
+ nsAutoCString mimeType;
+ GetMIMEType(mimeType);
+ if (!mimeType.IsEmpty()) {
+ workingRegistryPath.AppendLiteral("MIME\\Database\\Content Type\\");
+ workingRegistryPath.Append(NS_ConvertASCIItoUTF16(mimeType));
+
+ rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
+ workingRegistryPath,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_SUCCEEDED(rv)) {
+ nsAutoString mimeFileExt;
+ if (NS_SUCCEEDED(regKey->ReadStringValue(u""_ns, mimeFileExt))) {
+ CopyUTF16toUTF8(mimeFileExt, fileExt);
+ extKnown = false;
+ }
+ }
+ }
+ }
+
+ nsAutoString fileExtToUse;
+ if (!fileExt.IsEmpty() && fileExt.First() != '.') {
+ fileExtToUse = char16_t('.');
+ }
+ fileExtToUse.Append(NS_ConvertUTF8toUTF16(fileExt));
+
+ // Note, the order in which these occur has an effect on the
+ // validity of the resulting display list.
+
+ if (!extKnown) {
+ // 1) Get the default handler if it exists
+ workingRegistryPath = fileExtToUse;
+
+ rv =
+ regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
+ workingRegistryPath, nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_SUCCEEDED(rv)) {
+ nsAutoString appProgId;
+ if (NS_SUCCEEDED(regKey->ReadStringValue(u""_ns, appProgId))) {
+ // Bug 358297 - ignore the embedded internet explorer handler
+ if (appProgId != u"XPSViewer.Document"_ns) {
+ nsAutoString appFilesystemCommand;
+ if (GetProgIDVerbCommandHandler(appProgId, appFilesystemCommand,
+ false) &&
+ !IsPathInList(appFilesystemCommand, trackList)) {
+ ProcessPath(appList, trackList, appFilesystemCommand);
+ }
+ }
+ }
+ regKey->Close();
+ }
+
+ // 2) list HKEY_CLASSES_ROOT\.ext\OpenWithList
+
+ workingRegistryPath = fileExtToUse;
+ workingRegistryPath.AppendLiteral("\\OpenWithList");
+
+ rv =
+ regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
+ workingRegistryPath, nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_SUCCEEDED(rv)) {
+ uint32_t count = 0;
+ if (NS_SUCCEEDED(regKey->GetValueCount(&count)) && count > 0) {
+ for (uint32_t index = 0; index < count; index++) {
+ nsAutoString appName;
+ if (NS_FAILED(regKey->GetValueName(index, appName))) continue;
+
+ // HKEY_CLASSES_ROOT\Applications\firefox.exe = "path params"
+ nsAutoString appFilesystemCommand;
+ if (!GetAppsVerbCommandHandler(appName, appFilesystemCommand,
+ false) ||
+ IsPathInList(appFilesystemCommand, trackList))
+ continue;
+ ProcessPath(appList, trackList, appFilesystemCommand);
+ }
+ }
+ regKey->Close();
+ }
+
+ // 3) List HKEY_CLASSES_ROOT\.ext\OpenWithProgids, with the
+ // different step of resolving the progids for the command handler.
+
+ workingRegistryPath = fileExtToUse;
+ workingRegistryPath.AppendLiteral("\\OpenWithProgids");
+
+ rv =
+ regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
+ workingRegistryPath, nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_SUCCEEDED(rv)) {
+ uint32_t count = 0;
+ if (NS_SUCCEEDED(regKey->GetValueCount(&count)) && count > 0) {
+ for (uint32_t index = 0; index < count; index++) {
+ // HKEY_CLASSES_ROOT\.ext\OpenWithProgids\Windows.XPSReachViewer
+ nsAutoString appProgId;
+ if (NS_FAILED(regKey->GetValueName(index, appProgId))) continue;
+
+ nsAutoString appFilesystemCommand;
+ if (!GetProgIDVerbCommandHandler(appProgId, appFilesystemCommand,
+ false) ||
+ IsPathInList(appFilesystemCommand, trackList))
+ continue;
+ ProcessPath(appList, trackList, appFilesystemCommand);
+ }
+ }
+ regKey->Close();
+ }
+
+ // 4) Add any non configured applications located in the MRU list
+
+ // HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion
+ // \Explorer\FileExts\.ext\OpenWithList
+ workingRegistryPath = nsLiteralString(
+ u"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\FileExts\\");
+ workingRegistryPath += fileExtToUse;
+ workingRegistryPath.AppendLiteral("\\OpenWithList");
+
+ rv =
+ regKey->Open(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER,
+ workingRegistryPath, nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_SUCCEEDED(rv)) {
+ uint32_t count = 0;
+ if (NS_SUCCEEDED(regKey->GetValueCount(&count)) && count > 0) {
+ for (uint32_t index = 0; index < count; index++) {
+ nsAutoString appName, appValue;
+ if (NS_FAILED(regKey->GetValueName(index, appName))) continue;
+ if (appName.EqualsLiteral("MRUList")) continue;
+ if (NS_FAILED(regKey->ReadStringValue(appName, appValue))) continue;
+
+ // HKEY_CLASSES_ROOT\Applications\firefox.exe = "path params"
+ nsAutoString appFilesystemCommand;
+ if (!GetAppsVerbCommandHandler(appValue, appFilesystemCommand,
+ false) ||
+ IsPathInList(appFilesystemCommand, trackList))
+ continue;
+ ProcessPath(appList, trackList, appFilesystemCommand);
+ }
+ }
+ }
+
+ // 5) Add any non configured progids in the MRU list, with the
+ // different step of resolving the progids for the command handler.
+
+ // HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion
+ // \Explorer\FileExts\.ext\OpenWithProgids
+ workingRegistryPath = nsLiteralString(
+ u"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\FileExts\\");
+ workingRegistryPath += fileExtToUse;
+ workingRegistryPath.AppendLiteral("\\OpenWithProgids");
+
+ regKey->Open(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER, workingRegistryPath,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_SUCCEEDED(rv)) {
+ uint32_t count = 0;
+ if (NS_SUCCEEDED(regKey->GetValueCount(&count)) && count > 0) {
+ for (uint32_t index = 0; index < count; index++) {
+ nsAutoString appIndex, appProgId;
+ if (NS_FAILED(regKey->GetValueName(index, appProgId))) continue;
+
+ nsAutoString appFilesystemCommand;
+ if (!GetProgIDVerbCommandHandler(appProgId, appFilesystemCommand,
+ false) ||
+ IsPathInList(appFilesystemCommand, trackList))
+ continue;
+ ProcessPath(appList, trackList, appFilesystemCommand);
+ }
+ }
+ regKey->Close();
+ }
+
+ // 6) Check the perceived type value, and use this to lookup the
+ // perceivedtype open with list.
+ // http://msdn2.microsoft.com/en-us/library/aa969373.aspx
+
+ workingRegistryPath = fileExtToUse;
+
+ regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, workingRegistryPath,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_SUCCEEDED(rv)) {
+ nsAutoString perceivedType;
+ rv = regKey->ReadStringValue(u"PerceivedType"_ns, perceivedType);
+ if (NS_SUCCEEDED(rv)) {
+ nsAutoString openWithListPath(u"SystemFileAssociations\\"_ns);
+ openWithListPath.Append(perceivedType); // no period
+ openWithListPath.AppendLiteral("\\OpenWithList");
+
+ nsresult rv = appKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
+ openWithListPath,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_SUCCEEDED(rv)) {
+ uint32_t count = 0;
+ if (NS_SUCCEEDED(regKey->GetValueCount(&count)) && count > 0) {
+ for (uint32_t index = 0; index < count; index++) {
+ nsAutoString appName;
+ if (NS_FAILED(regKey->GetValueName(index, appName))) continue;
+
+ // HKEY_CLASSES_ROOT\Applications\firefox.exe = "path params"
+ nsAutoString appFilesystemCommand;
+ if (!GetAppsVerbCommandHandler(appName, appFilesystemCommand,
+ false) ||
+ IsPathInList(appFilesystemCommand, trackList))
+ continue;
+ ProcessPath(appList, trackList, appFilesystemCommand);
+ }
+ }
+ }
+ }
+ }
+ } // extKnown == false
+
+ // 7) list global HKEY_CLASSES_ROOT\*\OpenWithList
+ // Listing general purpose handlers, not specific to a mime type or file
+ // extension
+
+ workingRegistryPath = u"*\\OpenWithList"_ns;
+
+ rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
+ workingRegistryPath, nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_SUCCEEDED(rv)) {
+ uint32_t count = 0;
+ if (NS_SUCCEEDED(regKey->GetValueCount(&count)) && count > 0) {
+ for (uint32_t index = 0; index < count; index++) {
+ nsAutoString appName;
+ if (NS_FAILED(regKey->GetValueName(index, appName))) continue;
+
+ // HKEY_CLASSES_ROOT\Applications\firefox.exe = "path params"
+ nsAutoString appFilesystemCommand;
+ if (!GetAppsVerbCommandHandler(appName, appFilesystemCommand, false) ||
+ IsPathInList(appFilesystemCommand, trackList))
+ continue;
+ ProcessPath(appList, trackList, appFilesystemCommand);
+ }
+ }
+ regKey->Close();
+ }
+
+ // 8) General application's list - not file extension specific on windows
+ workingRegistryPath = u"Applications"_ns;
+
+ rv =
+ regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, workingRegistryPath,
+ nsIWindowsRegKey::ACCESS_ENUMERATE_SUB_KEYS |
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_SUCCEEDED(rv)) {
+ uint32_t count = 0;
+ if (NS_SUCCEEDED(regKey->GetChildCount(&count)) && count > 0) {
+ for (uint32_t index = 0; index < count; index++) {
+ nsAutoString appName;
+ if (NS_FAILED(regKey->GetChildName(index, appName))) continue;
+
+ // HKEY_CLASSES_ROOT\Applications\firefox.exe = "path params"
+ nsAutoString appFilesystemCommand;
+ if (!GetAppsVerbCommandHandler(appName, appFilesystemCommand, false) ||
+ IsPathInList(appFilesystemCommand, trackList))
+ continue;
+ ProcessPath(appList, trackList, appFilesystemCommand);
+ }
+ }
+ }
+
+ // Return to the caller
+ *_retval = appList;
+ NS_ADDREF(*_retval);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMIMEInfoWin::IsCurrentAppOSDefault(bool* _retval) {
+ *_retval = false;
+ nsCOMPtr<nsIFile> defaultApp = GetDefaultApplication();
+ if (defaultApp) {
+ // Determine if the default executable is our executable.
+ nsCOMPtr<nsIFile> ourBinary;
+ XRE_GetBinaryPath(getter_AddRefs(ourBinary));
+ bool isSame = false;
+ nsresult rv = defaultApp->Equals(ourBinary, &isSame);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ *_retval = isSame;
+ }
+ return NS_OK;
+}
diff --git a/uriloader/exthandler/win/nsMIMEInfoWin.h b/uriloader/exthandler/win/nsMIMEInfoWin.h
new file mode 100644
index 0000000000..fa972b23a9
--- /dev/null
+++ b/uriloader/exthandler/win/nsMIMEInfoWin.h
@@ -0,0 +1,79 @@
+/* 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/. */
+
+#ifndef nsMIMEInfoWin_h_
+#define nsMIMEInfoWin_h_
+
+#include "nsMIMEInfoImpl.h"
+#include "nsIPropertyBag.h"
+#include "nsIMutableArray.h"
+#include "nsTArray.h"
+
+class nsMIMEInfoWin : public nsMIMEInfoBase, public nsIPropertyBag {
+ virtual ~nsMIMEInfoWin();
+
+ public:
+ explicit nsMIMEInfoWin(const char* aType = "") : nsMIMEInfoBase(aType) {}
+ explicit nsMIMEInfoWin(const nsACString& aMIMEType)
+ : nsMIMEInfoBase(aMIMEType) {}
+ nsMIMEInfoWin(const nsACString& aType, HandlerClass aClass)
+ : nsMIMEInfoBase(aType, aClass) {}
+
+ NS_IMETHOD LaunchWithFile(nsIFile* aFile) override;
+ NS_IMETHOD GetHasDefaultHandler(bool* _retval) override;
+ NS_IMETHOD GetPossibleLocalHandlers(nsIArray** _retval) override;
+ NS_IMETHOD IsCurrentAppOSDefault(bool* _retval) override;
+
+ void UpdateDefaultInfoIfStale();
+
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_NSIPROPERTYBAG
+
+ void SetDefaultApplicationHandler(nsIFile* aDefaultApplication) {
+ mDefaultApplication = aDefaultApplication;
+ }
+
+ protected:
+ nsIFile* GetDefaultApplication() {
+ UpdateDefaultInfoIfStale();
+ return mDefaultApplication;
+ }
+
+ virtual nsresult LoadUriInternal(nsIURI* aURI);
+ virtual nsresult LaunchDefaultWithFile(nsIFile* aFile);
+
+ private:
+ nsCOMPtr<nsIFile> mDefaultApplication;
+
+ // Given a path to a local handler, return its
+ // nsILocalHandlerApp instance.
+ bool GetLocalHandlerApp(const nsAString& aCommandHandler,
+ nsCOMPtr<nsILocalHandlerApp>& aApp);
+
+ // Return the cleaned up file path associated
+ // with a command verb located in root/Applications.
+ bool GetAppsVerbCommandHandler(const nsAString& appExeName,
+ nsAString& applicationPath, bool bEdit);
+
+ // Return the cleaned up file path associated
+ // with a progid command verb located in root.
+ bool GetProgIDVerbCommandHandler(const nsAString& appProgIDName,
+ nsAString& applicationPath, bool bEdit);
+
+ // Lookup a rundll command handler and return
+ // a populated command template for use with rundll32.exe.
+ bool GetDllLaunchInfo(nsIFile* aDll, nsIFile* aFile, nsAString& args,
+ bool bEdit);
+
+ // Helper routine used in tracking app lists
+ void ProcessPath(nsCOMPtr<nsIMutableArray>& appList,
+ nsTArray<nsString>& trackList,
+ const nsAString& appFilesystemCommand);
+
+ // Helper routine to call mozilla::ShellExecuteByExplorer
+ nsresult ShellExecuteWithIFile(nsIFile* aExecutable, int aArgc,
+ const wchar_t** aArgv);
+};
+
+#endif
diff --git a/uriloader/exthandler/win/nsOSHelperAppService.cpp b/uriloader/exthandler/win/nsOSHelperAppService.cpp
new file mode 100644
index 0000000000..e3a2ae9873
--- /dev/null
+++ b/uriloader/exthandler/win/nsOSHelperAppService.cpp
@@ -0,0 +1,609 @@
+/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim:set ts=2 sts=2 sw=2 et cin:
+ *
+ * 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 "nsComponentManagerUtils.h"
+#include "nsOSHelperAppService.h"
+#include "nsISupports.h"
+#include "nsString.h"
+#include "nsIMIMEInfo.h"
+#include "nsMIMEInfoWin.h"
+#include "nsMimeTypes.h"
+#include "nsNativeCharsetUtils.h"
+#include "nsLocalFile.h"
+#include "nsIWindowsRegKey.h"
+#include "nsXULAppAPI.h"
+#include "mozilla/UniquePtrExtensions.h"
+
+// shellapi.h is needed to build with WIN32_LEAN_AND_MEAN
+#include <shellapi.h>
+#include <shlwapi.h>
+
+#define LOG(...) MOZ_LOG(sLog, mozilla::LogLevel::Debug, (__VA_ARGS__))
+
+// helper methods: forward declarations...
+static nsresult GetExtensionFromWindowsMimeDatabase(const nsACString& aMimeType,
+ nsString& aFileExtension);
+
+nsOSHelperAppService::nsOSHelperAppService()
+ : nsExternalHelperAppService(), mAppAssoc(nullptr) {
+ CoInitialize(nullptr);
+ CoCreateInstance(CLSID_ApplicationAssociationRegistration, nullptr,
+ CLSCTX_INPROC, IID_IApplicationAssociationRegistration,
+ (void**)&mAppAssoc);
+}
+
+nsOSHelperAppService::~nsOSHelperAppService() {
+ if (mAppAssoc) mAppAssoc->Release();
+ mAppAssoc = nullptr;
+ CoUninitialize();
+}
+
+// The windows registry provides a mime database key which lists a set of mime
+// types and corresponding "Extension" values. we can use this to look up our
+// mime type to see if there is a preferred extension for the mime type.
+static nsresult GetExtensionFromWindowsMimeDatabase(const nsACString& aMimeType,
+ nsString& aFileExtension) {
+ nsAutoString mimeDatabaseKey;
+ mimeDatabaseKey.AssignLiteral("MIME\\Database\\Content Type\\");
+
+ AppendASCIItoUTF16(aMimeType, mimeDatabaseKey);
+
+ nsCOMPtr<nsIWindowsRegKey> regKey =
+ do_CreateInstance("@mozilla.org/windows-registry-key;1");
+ if (!regKey) return NS_ERROR_NOT_AVAILABLE;
+
+ nsresult rv =
+ regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, mimeDatabaseKey,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+
+ if (NS_SUCCEEDED(rv))
+ regKey->ReadStringValue(u"Extension"_ns, aFileExtension);
+
+ return NS_OK;
+}
+
+nsresult nsOSHelperAppService::OSProtocolHandlerExists(
+ const char* aProtocolScheme, bool* aHandlerExists) {
+ // look up the protocol scheme in the windows registry....if we find a match
+ // then we have a handler for it...
+ *aHandlerExists = false;
+ if (aProtocolScheme && *aProtocolScheme) {
+ NS_ENSURE_TRUE(mAppAssoc, NS_ERROR_NOT_AVAILABLE);
+ wchar_t* pResult = nullptr;
+ NS_ConvertASCIItoUTF16 scheme(aProtocolScheme);
+ // We are responsible for freeing returned strings.
+ HRESULT hr = mAppAssoc->QueryCurrentDefault(scheme.get(), AT_URLPROTOCOL,
+ AL_EFFECTIVE, &pResult);
+ if (SUCCEEDED(hr)) {
+ CoTaskMemFree(pResult);
+ nsCOMPtr<nsIWindowsRegKey> regKey =
+ do_CreateInstance("@mozilla.org/windows-registry-key;1");
+ if (!regKey) {
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ nsresult rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
+ nsDependentString(scheme.get()),
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_FAILED(rv)) {
+ // Open will fail if the registry key path doesn't exist.
+ return NS_OK;
+ }
+
+ bool hasValue;
+ rv = regKey->HasValue(u"URL Protocol"_ns, &hasValue);
+ if (NS_FAILED(rv)) {
+ return NS_ERROR_FAILURE;
+ }
+ if (!hasValue) {
+ return NS_OK;
+ }
+
+ *aHandlerExists = true;
+ }
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP nsOSHelperAppService::GetApplicationDescription(
+ const nsACString& aScheme, nsAString& _retval) {
+ nsCOMPtr<nsIWindowsRegKey> regKey =
+ do_CreateInstance("@mozilla.org/windows-registry-key;1");
+ if (!regKey) return NS_ERROR_NOT_AVAILABLE;
+
+ NS_ConvertASCIItoUTF16 buf(aScheme);
+
+ wchar_t result[1024];
+ DWORD resultSize = 1024;
+ HRESULT hr = AssocQueryString(0x1000 /* ASSOCF_IS_PROTOCOL */,
+ ASSOCSTR_FRIENDLYAPPNAME, buf.get(), NULL,
+ result, &resultSize);
+ if (SUCCEEDED(hr)) {
+ _retval = result;
+ return NS_OK;
+ }
+
+ NS_ENSURE_TRUE(mAppAssoc, NS_ERROR_NOT_AVAILABLE);
+ wchar_t* pResult = nullptr;
+ // We are responsible for freeing returned strings.
+ hr = mAppAssoc->QueryCurrentDefault(buf.get(), AT_URLPROTOCOL, AL_EFFECTIVE,
+ &pResult);
+ if (SUCCEEDED(hr)) {
+ nsCOMPtr<nsIFile> app;
+ nsAutoString appInfo(pResult);
+ CoTaskMemFree(pResult);
+ if (NS_SUCCEEDED(GetDefaultAppInfo(appInfo, _retval, getter_AddRefs(app))))
+ return NS_OK;
+ }
+ return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP nsOSHelperAppService::IsCurrentAppOSDefaultForProtocol(
+ const nsACString& aScheme, bool* _retval) {
+ *_retval = false;
+
+ NS_ENSURE_TRUE(mAppAssoc, NS_ERROR_NOT_AVAILABLE);
+
+ NS_ConvertASCIItoUTF16 buf(aScheme);
+
+ // Find the progID
+ wchar_t* pResult = nullptr;
+ HRESULT hr = mAppAssoc->QueryCurrentDefault(buf.get(), AT_URLPROTOCOL,
+ AL_EFFECTIVE, &pResult);
+ if (FAILED(hr)) {
+ return NS_ERROR_FAILURE;
+ }
+ nsAutoString progID(pResult);
+ // We are responsible for freeing returned strings.
+ CoTaskMemFree(pResult);
+
+ // Find the default executable.
+ nsAutoString description;
+ nsCOMPtr<nsIFile> appFile;
+ nsresult rv = GetDefaultAppInfo(progID, description, getter_AddRefs(appFile));
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ // Determine if the default executable is our executable.
+ nsCOMPtr<nsIFile> ourBinary;
+ XRE_GetBinaryPath(getter_AddRefs(ourBinary));
+ bool isSame = false;
+ rv = appFile->Equals(ourBinary, &isSame);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ *_retval = isSame;
+ return NS_OK;
+}
+
+// GetMIMEInfoFromRegistry: This function obtains the values of some of the
+// nsIMIMEInfo attributes for the mimeType/extension associated with the input
+// registry key. The default entry for that key is the name of a registry key
+// under HKEY_CLASSES_ROOT. The default value for *that* key is the descriptive
+// name of the type. The EditFlags value is a binary value; the low order bit
+// of the third byte of which indicates that the user does not need to be
+// prompted.
+//
+// This function sets only the Description attribute of the input nsIMIMEInfo.
+/* static */
+nsresult nsOSHelperAppService::GetMIMEInfoFromRegistry(const nsString& fileType,
+ nsIMIMEInfo* pInfo) {
+ nsresult rv = NS_OK;
+
+ NS_ENSURE_ARG(pInfo);
+ nsCOMPtr<nsIWindowsRegKey> regKey =
+ do_CreateInstance("@mozilla.org/windows-registry-key;1");
+ if (!regKey) return NS_ERROR_NOT_AVAILABLE;
+
+ rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, fileType,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
+
+ // OK, the default value here is the description of the type.
+ nsAutoString description;
+ rv = regKey->ReadStringValue(u""_ns, description);
+ if (NS_SUCCEEDED(rv)) pInfo->SetDescription(description);
+
+ return NS_OK;
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////
+// method overrides used to gather information from the windows registry for
+// various mime types.
+////////////////////////////////////////////////////////////////////////////////////////////////
+
+/// Looks up the type for the extension aExt and compares it to aType
+/* static */
+bool nsOSHelperAppService::typeFromExtEquals(const char16_t* aExt,
+ const char* aType) {
+ if (!aType) return false;
+ nsAutoString fileExtToUse;
+ if (aExt[0] != char16_t('.')) fileExtToUse = char16_t('.');
+
+ fileExtToUse.Append(aExt);
+
+ bool eq = false;
+ nsCOMPtr<nsIWindowsRegKey> regKey =
+ do_CreateInstance("@mozilla.org/windows-registry-key;1");
+ if (!regKey) return eq;
+
+ nsresult rv =
+ regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, fileExtToUse,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_FAILED(rv)) return eq;
+
+ nsAutoString type;
+ rv = regKey->ReadStringValue(u"Content Type"_ns, type);
+ if (NS_SUCCEEDED(rv)) eq = type.LowerCaseEqualsASCII(aType);
+
+ return eq;
+}
+
+// The "real" name of a given helper app (as specified by the path to the
+// executable file held in various registry keys) is stored n the VERSIONINFO
+// block in the file's resources. We need to find the path to the executable
+// and then retrieve the "FileDescription" field value from the file.
+nsresult nsOSHelperAppService::GetDefaultAppInfo(
+ const nsAString& aAppInfo, nsAString& aDefaultDescription,
+ nsIFile** aDefaultApplication) {
+ nsAutoString handlerCommand;
+
+ // If all else fails, use the file type key name, which will be
+ // something like "pngfile" for .pngs, "WMVFile" for .wmvs, etc.
+ aDefaultDescription = aAppInfo;
+ *aDefaultApplication = nullptr;
+
+ if (aAppInfo.IsEmpty()) return NS_ERROR_FAILURE;
+
+ // aAppInfo may be a file, file path, program id, or
+ // Applications reference -
+ // c:\dir\app.exe
+ // Applications\appfile.exe/dll (shell\open...)
+ // ProgID.progid (shell\open...)
+
+ nsAutoString handlerKeyName(aAppInfo);
+
+ nsCOMPtr<nsIWindowsRegKey> chkKey =
+ do_CreateInstance("@mozilla.org/windows-registry-key;1");
+ if (!chkKey) return NS_ERROR_FAILURE;
+
+ nsresult rv =
+ chkKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, handlerKeyName,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_FAILED(rv)) {
+ // It's a file system path to a handler
+ handlerCommand.Assign(aAppInfo);
+ } else {
+ handlerKeyName.AppendLiteral("\\shell\\open\\command");
+ nsCOMPtr<nsIWindowsRegKey> regKey =
+ do_CreateInstance("@mozilla.org/windows-registry-key;1");
+ if (!regKey) return NS_ERROR_FAILURE;
+
+ nsresult rv =
+ regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, handlerKeyName,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
+
+ // OK, the default value here is the description of the type.
+ rv = regKey->ReadStringValue(u""_ns, handlerCommand);
+ if (NS_FAILED(rv)) {
+ // Check if there is a DelegateExecute string
+ nsAutoString delegateExecute;
+ rv = regKey->ReadStringValue(u"DelegateExecute"_ns, delegateExecute);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // Look for InProcServer32
+ nsAutoString delegateExecuteRegPath;
+ delegateExecuteRegPath.AssignLiteral("CLSID\\");
+ delegateExecuteRegPath.Append(delegateExecute);
+ delegateExecuteRegPath.AppendLiteral("\\InProcServer32");
+ rv = chkKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
+ delegateExecuteRegPath,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_SUCCEEDED(rv)) {
+ rv = chkKey->ReadStringValue(u""_ns, handlerCommand);
+ }
+
+ if (NS_FAILED(rv)) {
+ // Look for LocalServer32
+ delegateExecuteRegPath.AssignLiteral("CLSID\\");
+ delegateExecuteRegPath.Append(delegateExecute);
+ delegateExecuteRegPath.AppendLiteral("\\LocalServer32");
+ rv = chkKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
+ delegateExecuteRegPath,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ NS_ENSURE_SUCCESS(rv, rv);
+ rv = chkKey->ReadStringValue(u""_ns, handlerCommand);
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+ }
+ }
+
+ // XXX FIXME: If this fails, the UI will display the full command
+ // string.
+ // There are some rare cases this can happen - ["url.dll" -foo]
+ // for example won't resolve correctly to the system dir. The
+ // subsequent launch of the helper app will work though.
+ nsCOMPtr<nsILocalFileWin> lf = new nsLocalFile();
+ rv = lf->InitWithCommandLine(handlerCommand);
+ NS_ENSURE_SUCCESS(rv, rv);
+ lf.forget(aDefaultApplication);
+
+ wchar_t friendlyName[1024];
+ DWORD friendlyNameSize = 1024;
+ HRESULT hr = AssocQueryString(ASSOCF_NONE, ASSOCSTR_FRIENDLYAPPNAME,
+ PromiseFlatString(aAppInfo).get(), NULL,
+ friendlyName, &friendlyNameSize);
+ if (SUCCEEDED(hr) && friendlyNameSize > 1) {
+ aDefaultDescription.Assign(friendlyName, friendlyNameSize - 1);
+ }
+
+ return NS_OK;
+}
+
+already_AddRefed<nsMIMEInfoWin> nsOSHelperAppService::GetByExtension(
+ const nsString& aFileExt, const char* aTypeHint) {
+ if (aFileExt.IsEmpty()) return nullptr;
+
+ // Determine the mime type.
+ nsAutoCString typeToUse;
+ if (aTypeHint && *aTypeHint) {
+ typeToUse.Assign(aTypeHint);
+ } else if (!GetMIMETypeFromOSForExtension(NS_ConvertUTF16toUTF8(aFileExt),
+ typeToUse)) {
+ return nullptr;
+ }
+
+ RefPtr<nsMIMEInfoWin> mimeInfo = new nsMIMEInfoWin(typeToUse);
+
+ // Our extension APIs expect extensions without the '.', so normalize:
+ uint32_t dotlessIndex = aFileExt.First() != char16_t('.') ? 0 : 1;
+ nsAutoCString lowerFileExt =
+ NS_ConvertUTF16toUTF8(Substring(aFileExt, dotlessIndex));
+ ToLowerCase(lowerFileExt);
+ mimeInfo->AppendExtension(lowerFileExt);
+ mimeInfo->SetPreferredAction(nsIMIMEInfo::saveToDisk);
+
+ if (NS_FAILED(InternalSetDefaultsOnMIME(mimeInfo))) {
+ return nullptr;
+ }
+
+ return mimeInfo.forget();
+}
+
+nsresult nsOSHelperAppService::InternalSetDefaultsOnMIME(
+ nsMIMEInfoWin* aMIMEInfo) {
+ NS_ENSURE_ARG(aMIMEInfo);
+
+ nsAutoCString primaryExt;
+ aMIMEInfo->GetPrimaryExtension(primaryExt);
+
+ if (primaryExt.IsEmpty()) {
+ return NS_ERROR_FAILURE;
+ }
+
+ // windows registry assumes your file extension is going to include the '.',
+ // but our APIs don't have it, so add it:
+ nsAutoString assocType = NS_ConvertUTF8toUTF16(primaryExt);
+ if (assocType.First() != char16_t('.')) {
+ assocType.Insert(char16_t('.'), 0);
+ }
+
+ nsAutoString appInfo;
+ bool found;
+
+ // Retrieve the default application for this extension
+ NS_ENSURE_TRUE(mAppAssoc, NS_ERROR_NOT_AVAILABLE);
+ wchar_t* pResult = nullptr;
+ HRESULT hr = mAppAssoc->QueryCurrentDefault(assocType.get(), AT_FILEEXTENSION,
+ AL_EFFECTIVE, &pResult);
+ if (SUCCEEDED(hr)) {
+ found = true;
+ appInfo.Assign(pResult);
+ CoTaskMemFree(pResult);
+ } else {
+ found = false;
+ }
+
+ // Bug 358297 - ignore the default handler, force the user to choose app
+ if (appInfo.EqualsLiteral("XPSViewer.Document")) found = false;
+
+ if (!found) {
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ // Get other nsIMIMEInfo fields from registry, if possible.
+ nsAutoString defaultDescription;
+ nsCOMPtr<nsIFile> defaultApplication;
+
+ if (NS_FAILED(GetDefaultAppInfo(appInfo, defaultDescription,
+ getter_AddRefs(defaultApplication)))) {
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ aMIMEInfo->SetDefaultDescription(defaultDescription);
+ aMIMEInfo->SetDefaultApplicationHandler(defaultApplication);
+
+ // Grab the general description
+ GetMIMEInfoFromRegistry(appInfo, aMIMEInfo);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsOSHelperAppService::GetMIMEInfoFromOS(const nsACString& aMIMEType,
+ const nsACString& aFileExt,
+ bool* aFound, nsIMIMEInfo** aMIMEInfo) {
+ *aFound = false;
+
+ const nsCString& flatType = PromiseFlatCString(aMIMEType);
+ nsAutoString fileExtension;
+ CopyUTF8toUTF16(aFileExt, fileExtension);
+
+ /* XXX The octet-stream check is a gross hack to wallpaper over the most
+ * common Win32 extension issues caused by the fix for bug 116938. See bug
+ * 120327, comment 271 for why this is needed. Not even sure we
+ * want to remove this once we have fixed all this stuff to work
+ * right; any info we get from the OS on this type is pretty much
+ * useless....
+ */
+ bool haveMeaningfulMimeType =
+ !aMIMEType.IsEmpty() &&
+ !aMIMEType.LowerCaseEqualsLiteral(APPLICATION_OCTET_STREAM);
+ LOG("Extension lookup on '%S' with mimetype '%s'%s\n",
+ static_cast<const wchar_t*>(fileExtension.get()), flatType.get(),
+ haveMeaningfulMimeType ? " (treated as meaningful)" : "");
+
+ RefPtr<nsMIMEInfoWin> mi;
+
+ // We should have *something* to go on here.
+ nsAutoString extensionFromMimeType;
+ if (haveMeaningfulMimeType) {
+ GetExtensionFromWindowsMimeDatabase(aMIMEType, extensionFromMimeType);
+ }
+ if (fileExtension.IsEmpty() && extensionFromMimeType.IsEmpty()) {
+ // Without an extension from the mimetype or the file, we can't
+ // do anything here.
+ mi = new nsMIMEInfoWin(flatType.get());
+ mi.forget(aMIMEInfo);
+ return NS_OK;
+ }
+
+ // Either fileExtension or extensionFromMimeType must now be non-empty.
+
+ *aFound = true;
+
+ // On Windows, we prefer the file extension for lookups over the mimetype,
+ // because that's how windows does things.
+ // If we have no file extension or it doesn't match the mimetype, use the
+ // mime type's default file extension instead.
+ bool usedMimeTypeExtensionForLookup = false;
+ if (fileExtension.IsEmpty() ||
+ (!extensionFromMimeType.IsEmpty() &&
+ !typeFromExtEquals(fileExtension.get(), flatType.get()))) {
+ usedMimeTypeExtensionForLookup = true;
+ fileExtension = extensionFromMimeType;
+ LOG("Now using '%s' mimetype's default file extension '%S' for lookup\n",
+ flatType.get(), static_cast<const wchar_t*>(fileExtension.get()));
+ }
+
+ // If we have an extension, use it for lookup:
+ mi = GetByExtension(fileExtension, flatType.get());
+ LOG("Extension lookup on '%S' found: 0x%p\n",
+ static_cast<const wchar_t*>(fileExtension.get()), mi.get());
+
+ if (mi) {
+ bool hasDefault = false;
+ mi->GetHasDefaultHandler(&hasDefault);
+ // If we don't find a default handler description, see if we can find one
+ // using the mimetype.
+ if (!hasDefault && !usedMimeTypeExtensionForLookup) {
+ RefPtr<nsMIMEInfoWin> miFromMimeType =
+ GetByExtension(extensionFromMimeType, flatType.get());
+ LOG("Mime-based ext. lookup for '%S' found 0x%p\n",
+ static_cast<const wchar_t*>(extensionFromMimeType.get()),
+ miFromMimeType.get());
+ if (miFromMimeType) {
+ nsAutoString desc;
+ miFromMimeType->GetDefaultDescription(desc);
+ mi->SetDefaultDescription(desc);
+ }
+ }
+ mi.forget(aMIMEInfo);
+ return NS_OK;
+ }
+
+ // The extension didn't work. Try the extension from the mimetype if
+ // different:
+ if (!extensionFromMimeType.IsEmpty() && !usedMimeTypeExtensionForLookup) {
+ mi = GetByExtension(extensionFromMimeType, flatType.get());
+ LOG("Mime-based ext. lookup for '%S' found 0x%p\n",
+ static_cast<const wchar_t*>(extensionFromMimeType.get()), mi.get());
+ }
+ if (mi) {
+ mi.forget(aMIMEInfo);
+ return NS_OK;
+ }
+ // This didn't work either, so just return an empty dummy mimeinfo.
+ *aFound = false;
+ mi = new nsMIMEInfoWin(flatType.get());
+ // If we didn't resort to the mime type's extension, we must have had a
+ // valid extension, so stick its lowercase version on the mime info.
+ if (!usedMimeTypeExtensionForLookup) {
+ nsAutoCString lowerFileExt;
+ ToLowerCase(aFileExt, lowerFileExt);
+ mi->AppendExtension(lowerFileExt);
+ }
+ mi.forget(aMIMEInfo);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsOSHelperAppService::UpdateDefaultAppInfo(nsIMIMEInfo* aMIMEInfo) {
+ InternalSetDefaultsOnMIME(static_cast<nsMIMEInfoWin*>(aMIMEInfo));
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsOSHelperAppService::GetProtocolHandlerInfoFromOS(const nsACString& aScheme,
+ bool* found,
+ nsIHandlerInfo** _retval) {
+ NS_ASSERTION(!aScheme.IsEmpty(), "No scheme was specified!");
+
+ nsresult rv =
+ OSProtocolHandlerExists(nsPromiseFlatCString(aScheme).get(), found);
+ if (NS_FAILED(rv)) return rv;
+
+ nsMIMEInfoWin* handlerInfo =
+ new nsMIMEInfoWin(aScheme, nsMIMEInfoBase::eProtocolInfo);
+ NS_ENSURE_TRUE(handlerInfo, NS_ERROR_OUT_OF_MEMORY);
+ NS_ADDREF(*_retval = handlerInfo);
+
+ if (!*found) {
+ // Code that calls this requires an object regardless if the OS has
+ // something for us, so we return the empty object.
+ return NS_OK;
+ }
+
+ nsAutoString desc;
+ GetApplicationDescription(aScheme, desc);
+ handlerInfo->SetDefaultDescription(desc);
+
+ return NS_OK;
+}
+
+bool nsOSHelperAppService::GetMIMETypeFromOSForExtension(
+ const nsACString& aExtension, nsACString& aMIMEType) {
+ if (aExtension.IsEmpty()) return false;
+
+ // windows registry assumes your file extension is going to include the '.'.
+ // so make sure it's there...
+ nsAutoString fileExtToUse;
+ if (aExtension.First() != '.') fileExtToUse = char16_t('.');
+
+ AppendUTF8toUTF16(aExtension, fileExtToUse);
+
+ // Try to get an entry from the windows registry.
+ nsCOMPtr<nsIWindowsRegKey> regKey =
+ do_CreateInstance("@mozilla.org/windows-registry-key;1");
+ if (!regKey) return false;
+
+ nsresult rv =
+ regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, fileExtToUse,
+ nsIWindowsRegKey::ACCESS_QUERY_VALUE);
+ if (NS_FAILED(rv)) return false;
+
+ nsAutoString mimeType;
+ if (NS_FAILED(regKey->ReadStringValue(u"Content Type"_ns, mimeType)) ||
+ mimeType.IsEmpty()) {
+ return false;
+ }
+ // Content-Type is always in ASCII
+ aMIMEType.Truncate();
+ LossyAppendUTF16toASCII(mimeType, aMIMEType);
+ return true;
+}
diff --git a/uriloader/exthandler/win/nsOSHelperAppService.h b/uriloader/exthandler/win/nsOSHelperAppService.h
new file mode 100644
index 0000000000..ff7c597217
--- /dev/null
+++ b/uriloader/exthandler/win/nsOSHelperAppService.h
@@ -0,0 +1,76 @@
+/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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/. */
+
+#ifndef nsOSHelperAppService_h__
+#define nsOSHelperAppService_h__
+
+// The OS helper app service is a subclass of nsExternalHelperAppService and is
+// implemented on each platform. It contains platform specific code for finding
+// helper applications for a given mime type in addition to launching those
+// applications.
+
+#include "nsExternalHelperAppService.h"
+#include "nsCExternalHandlerService.h"
+#include "nsCOMPtr.h"
+#include <windows.h>
+#include <shlobj.h>
+
+class nsMIMEInfoWin;
+class nsIMIMEInfo;
+
+class nsOSHelperAppService : public nsExternalHelperAppService {
+ public:
+ nsOSHelperAppService();
+ virtual ~nsOSHelperAppService();
+
+ // override nsIExternalProtocolService methods
+ NS_IMETHOD OSProtocolHandlerExists(const char* aProtocolScheme,
+ bool* aHandlerExists) override;
+ nsresult LoadUriInternal(nsIURI* aURL);
+ NS_IMETHOD GetApplicationDescription(const nsACString& aScheme,
+ nsAString& _retval) override;
+
+ NS_IMETHOD IsCurrentAppOSDefaultForProtocol(const nsACString& aScheme,
+ bool* _retval) override;
+
+ // method overrides for windows registry look up steps....
+ NS_IMETHOD GetMIMEInfoFromOS(const nsACString& aMIMEType,
+ const nsACString& aFileExt, bool* aFound,
+ nsIMIMEInfo** aMIMEInfo) override;
+ NS_IMETHOD UpdateDefaultAppInfo(nsIMIMEInfo* aMIMEInfo) override;
+ NS_IMETHOD GetProtocolHandlerInfoFromOS(const nsACString& aScheme,
+ bool* found,
+ nsIHandlerInfo** _retval);
+ virtual bool GetMIMETypeFromOSForExtension(const nsACString& aExtension,
+ nsACString& aMIMEType) override;
+
+ /** Get the string value of a registry value and store it in result.
+ * @return true on success, false on failure
+ */
+ static bool GetValueString(HKEY hKey, const char16_t* pValueName,
+ nsAString& result);
+
+ protected:
+ nsresult GetDefaultAppInfo(const nsAString& aTypeName,
+ nsAString& aDefaultDescription,
+ nsIFile** aDefaultApplication);
+ // Lookup a mime info by extension, using an optional type hint
+ already_AddRefed<nsMIMEInfoWin> GetByExtension(
+ const nsString& aFileExt, const char* aTypeHint = nullptr);
+ nsresult InternalSetDefaultsOnMIME(nsMIMEInfoWin* aMIMEInfo);
+ nsresult FindOSMimeInfoForType(const char* aMimeContentType, nsIURI* aURI,
+ char** aFileExtension,
+ nsIMIMEInfo** aMIMEInfo);
+
+ static nsresult GetMIMEInfoFromRegistry(const nsString& fileType,
+ nsIMIMEInfo* pInfo);
+ /// Looks up the type for the extension aExt and compares it to aType
+ static bool typeFromExtEquals(const char16_t* aExt, const char* aType);
+
+ private:
+ IApplicationAssociationRegistration* mAppAssoc;
+};
+
+#endif // nsOSHelperAppService_h__
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