Revert "Use ansi codepage for internal multibyte strings on windows"

This reverts commit 402801e0a6.

We should use UTF8 throughout the application and convert to platform
encodings only at the edge. Otherwise it's not clear which data uses
which encoding and we result in extremele brittle system.

src/gui/src/CommandProcess.cpp

@@ -30,35 +30,34 @@ CommandProcess::CommandProcess(QString cmd, QStringList arguments, QString input
 QString CommandProcess::run()
 {
     QProcess process;
-    QString standardOutput, standardError;
     process.setReadChannel(QProcess::StandardOutput);
     process.start(m_Command, m_Arguments);
     bool success = process.waitForStarted();
 
+    QString output, error;
     if (success)
     {
         if (!m_Input.isEmpty()) {
-            process.write(m_Input.toLocal8Bit());
+            process.write(m_Input.toStdString().c_str());
         }
 
         if (process.waitForFinished()) {
-            standardOutput = QString::fromLocal8Bit(process.readAllStandardOutput().trimmed());
+            output = process.readAllStandardOutput().trimmed();
-            standardError = QString::fromLocal8Bit(process.readAllStandardError().trimmed());
+            error = process.readAllStandardError().trimmed();
         }
     }
 
     int code = process.exitCode();
-    if (!standardError.isEmpty() || !success || code != 0)
+    if (!error.isEmpty() || !success || code != 0)
     {
         throw std::runtime_error(
-            std::string(
             QString("Code: %1\nError: %2")
                 .arg(process.exitCode())
-                    .arg(standardError.isEmpty() ? "Unknown" : standardError)
+                .arg(error.isEmpty() ? "Unknown" : error)
-                .toLocal8Bit().constData()));
+                .toStdString());
     }
 
     emit finished();
 
-    return standardOutput;
+    return output;
 }

src/gui/src/Fingerprint.cpp

@@ -16,7 +16,8 @@
  */
 
 #include "Fingerprint.h"
-#include "QUtility.h"
+
+#include "common/DataDirectories.h"
 
 #include <QDir>
 #include <QTextStream>
@@ -123,8 +124,10 @@ void Fingerprint::persistDirectory()
 
 QString Fingerprint::directoryPath()
 {
+    auto profileDir = QString::fromStdString(DataDirectories::profile());
+
     return QString("%1/%2")
-      .arg(profilePath())
+      .arg(profileDir)
       .arg(kDirName);
 }
 

src/gui/src/IpcClient.cpp

@@ -104,12 +104,14 @@ void IpcClient::sendCommand(const QString& command, ElevateMode const elevate)
 
     stream.writeRawData(kIpcMsgCommand, 4);
 
-    QByteArray utf8Command = command.toUtf8();
+    std::string stdStringCommand = command.toStdString();
+    const char* charCommand = stdStringCommand.c_str();
+    int length = (int)strlen(charCommand);
 
     char lenBuf[4];
-    intToBytes(utf8Command.size(), lenBuf, 4);
+    intToBytes(length, lenBuf, 4);
     stream.writeRawData(lenBuf, 4);
-    stream.writeRawData(utf8Command.constData(), utf8Command.size());
+    stream.writeRawData(charCommand, length);
 
     char elevateBuf[1];
     // Refer to enum ElevateMode documentation for why this flag is mapped this way

src/gui/src/MainWindow.cpp

@@ -31,6 +31,7 @@
 #include "ProcessorArch.h"
 #include "SslCertificate.h"
 #include "ShutdownCh.h"
+#include "common/DataDirectories.h"
 
 #include <QtCore>
 #include <QtGui>
@@ -524,7 +525,7 @@ void MainWindow::startBarrier()
     // launched the process (e.g. when launched with elevation). setting the
     // profile dir on launch ensures it uses the same profile dir is used
     // no matter how its relaunched.
-    args << "--profile-dir" << QString("\"%1\"").arg(profilePath());
+    args << "--profile-dir" << QString::fromStdString("\"" + DataDirectories::profile() + "\"");
 #endif
 
     if ((barrierType() == barrierClient && !clientArgs(args, app))

src/gui/src/QUtility.cpp

@@ -19,7 +19,6 @@
 
 #include "ProcessorArch.h"
 #include "CommandProcess.h"
-#include "common/DataDirectories.h"
 
 #if defined(Q_OS_LINUX)
 #include <QProcess>
@@ -113,11 +112,3 @@ QString getOSInformation()
 
     return result;
 }
-
-QString profilePath()
-{
-    // Get path to current profile directory, properly converted
-    // from an OS locale std::string to Unicode QString.
-    auto localePath = DataDirectories::profile();
-    return QString::fromLocal8Bit(localePath.c_str(), localePath.size());
-}

src/gui/src/QUtility.h

@@ -29,4 +29,3 @@ QString hash(const QString& string);
 QString getFirstMacAddress();
 qProcessorArch getProcessorArch();
 QString getOSInformation();
-QString profilePath();

src/gui/src/SslCertificate.cpp

@@ -17,7 +17,7 @@
 
 #include "SslCertificate.h"
 #include "Fingerprint.h"
-#include "QUtility.h"
+#include "common/DataDirectories.h"
 
 #include <QProcess>
 #include <QDir>
@@ -43,13 +43,13 @@ static const char kConfigFile[] = "barrier.conf";
 SslCertificate::SslCertificate(QObject *parent) :
     QObject(parent)
 {
-    m_ProfileDir = profilePath();
+    m_ProfileDir = DataDirectories::profile();
-    if (m_ProfileDir.isEmpty()) {
+    if (m_ProfileDir.empty()) {
         emit error(tr("Failed to get profile directory."));
     }
 }
 
-std::pair<bool, QString> SslCertificate::runTool(const QStringList& args)
+std::pair<bool, std::string> SslCertificate::runTool(const QStringList& args)
 {
     QString program;
 #if defined(Q_OS_WIN)
@@ -68,15 +68,17 @@ std::pair<bool, QString> SslCertificate::runTool(const QStringList& args)
 #endif
 
     QProcess process;
-    QString standardOutput, standardError;
     process.setEnvironment(environment);
     process.start(program, args);
-    bool success = process.waitForStarted();
 
+    bool success = process.waitForStarted();
+    std::string output;
+
+    QString standardError;
     if (success && process.waitForFinished())
     {
-        standardOutput = QString::fromLocal8Bit(process.readAllStandardOutput().trimmed());
+        output = process.readAllStandardOutput().trimmed().toStdString();
-        standardError = QString::fromLocal8Bit(process.readAllStandardError().trimmed());
+        standardError = process.readAllStandardError().trimmed();
     }
 
     int code = process.exitCode();
@@ -87,15 +89,15 @@ std::pair<bool, QString> SslCertificate::runTool(const QStringList& args)
                 .arg(program)
                 .arg(process.exitCode())
                 .arg(standardError.isEmpty() ? "Unknown" : standardError));
-        return {false, standardOutput};
+        return {false, output};
     }
 
-    return {true, standardOutput};
+    return {true, output};
 }
 
 void SslCertificate::generateCertificate()
 {
-    auto filename = getCertificatePath();
+    auto filename = QString::fromStdString(getCertificatePath());
 
     QFile file(filename);
     if (!file.exists() || !isCertificateValid(filename)) {
@@ -120,7 +122,7 @@ void SslCertificate::generateCertificate()
         arguments.append("-newkey");
         arguments.append("rsa:2048");
 
-        QDir sslDir(getCertificateDirectory());
+        QDir sslDir(QString::fromStdString(getCertificateDirectory()));
         if (!sslDir.exists()) {
             sslDir.mkpath(".");
         }
@@ -157,17 +159,20 @@ void SslCertificate::generateFingerprint(const QString& certificateFilename)
 
     auto ret = runTool(arguments);
     bool success = ret.first;
+    std::string output = ret.second;
+
     if (!success) {
         return;
     }
 
     // find the fingerprint from the tool output
-    QString fingerprint = ret.second;
+    auto i = output.find_first_of('=');
-    auto i = fingerprint.indexOf('=');
+    if (i != std::string::npos) {
-    if (i != -1) {
+        i++;
-        fingerprint.remove(0, i+1);
+        auto fingerprint = output.substr(
+            i, output.size() - i);
 
-        Fingerprint::local().trust(fingerprint, false);
+        Fingerprint::local().trust(QString::fromStdString(fingerprint), false);
         emit info(tr("SSL fingerprint generated."));
     }
     else {
@@ -175,14 +180,14 @@ void SslCertificate::generateFingerprint(const QString& certificateFilename)
     }
 }
 
-QString SslCertificate::getCertificatePath()
+std::string SslCertificate::getCertificatePath()
 {
-    return getCertificateDirectory() + QDir::separator() + kCertificateFilename;
+    return getCertificateDirectory() + QDir::separator().toLatin1() + kCertificateFilename;
 }
 
-QString SslCertificate::getCertificateDirectory()
+std::string SslCertificate::getCertificateDirectory()
 {
-    return m_ProfileDir + QDir::separator() + kSslDir;
+    return m_ProfileDir + QDir::separator().toLatin1() + kSslDir;
 }
 
 bool SslCertificate::isCertificateValid(const QString& path)
@@ -193,7 +198,7 @@ bool SslCertificate::isCertificateValid(const QString& path)
 
     BIO* bio = BIO_new(BIO_s_file());
 
-    auto ret = BIO_read_filename(bio, path.toLocal8Bit().constData());
+    auto ret = BIO_read_filename(bio, path.toStdString().c_str());
     if (!ret) {
         emit info(tr("Could not read from default certificate file."));
         BIO_free_all(bio);

src/gui/src/SslCertificate.h

@@ -36,13 +36,13 @@ signals:
     void generateFinished();
 
 private:
-    std::pair<bool, QString> runTool(const QStringList& args);
+    std::pair<bool, std::string> runTool(const QStringList& args);
     void generateFingerprint(const QString& certificateFilename);
 
-    QString getCertificatePath();
+    std::string getCertificatePath();
-    QString getCertificateDirectory();
+    std::string getCertificateDirectory();
 
     bool isCertificateValid(const QString& path);
 private:
-    QString m_ProfileDir;
+    std::string m_ProfileDir;
 };

src/lib/barrier/win32/DaemonApp.cpp

@@ -34,7 +34,6 @@
 #include "base/log_outputters.h"
 #include "base/Log.h"
 #include "common/DataDirectories.h"
-#include "base/Unicode.h"
 
 #include "arch/win32/ArchMiscWindows.h"
 #include "arch/win32/XArchWindows.h"
@@ -258,7 +257,7 @@ DaemonApp::handleIpcMessage(const Event& e, void*)
     switch (m->type()) {
         case kIpcCommand: {
             IpcCommandMessage* cm = static_cast<IpcCommandMessage*>(m);
-            String command = Unicode::UTF8ToText(cm->command());
+            String command = cm->command();
 
             // if empty quotes, clear.
             if (command == "\"\"") {

src/lib/common/win32/DataDirectories.cpp

@@ -16,12 +16,34 @@
 */
 
 #include "../DataDirectories.h"
-#include "KnownFolderPaths.h"
+
+#include <Shlobj.h>
+
+std::string unicode_to_mb(const WCHAR* utfStr)
+{
+    int utfLength = lstrlenW(utfStr);
+    int mbLength = WideCharToMultiByte(CP_UTF8, 0, utfStr, utfLength, NULL, 0, NULL, NULL);
+    std::string mbStr(mbLength, 0);
+    WideCharToMultiByte(CP_UTF8, 0, utfStr, utfLength, &mbStr[0], mbLength, NULL, NULL);
+    return mbStr;
+}
+
+std::string known_folder_path(const KNOWNFOLDERID& id)
+{
+    std::string path;
+    WCHAR* buffer;
+    HRESULT result = SHGetKnownFolderPath(id, 0, NULL, &buffer);
+    if (result == S_OK) {
+        path = unicode_to_mb(buffer);
+        CoTaskMemFree(buffer);
+    }
+    return path;
+}
 
 const std::string& DataDirectories::profile()
 {
     if (_profile.empty())
-        _profile = localAppDataPath() + "\\Barrier";
+        _profile = known_folder_path(FOLDERID_LocalAppData) + "\\Barrier";
     return _profile;
 }
 const std::string& DataDirectories::profile(const std::string& path)
@@ -33,7 +55,7 @@ const std::string& DataDirectories::profile(const std::string& path)
 const std::string& DataDirectories::global()
 {
     if (_global.empty())
-        _global = programDataPath() + "\\Barrier";
+        _global = known_folder_path(FOLDERID_ProgramData) + "\\Barrier";
     return _global;
 }
 const std::string& DataDirectories::global(const std::string& path)

src/lib/common/win32/KnownFolderPaths.cpp

@@ -1,63 +0,0 @@
-/*
-* barrier -- mouse and keyboard sharing utility
-* Copyright (C) 2018 Debauchee Open Source Group
-*
-* This package is free software; you can redistribute it and/or
-* modify it under the terms of the GNU General Public License
-* found in the file LICENSE that should have accompanied this file.
-*
-* This package is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "KnownFolderPaths.h"
-
-#define WIN32_LEAN_AND_MEAN
-#include <Windows.h>
-#include <Shlobj.h>
-
-static std::string wide_to_mb(const wchar_t* source, int length)
-{
-    int ansiLength = WideCharToMultiByte(CP_ACP, 0, source, length, NULL, 0, NULL, NULL);
-    if (ansiLength > 0) {
-        std::string ansiString(ansiLength, 0);
-        ansiLength = WideCharToMultiByte(CP_ACP, 0, source, length, &ansiString[0], ansiLength, NULL, NULL);
-        if (ansiLength > 0) {
-            return ansiString;
-        }
-    }
-    return {};
-}
-
-static std::string known_folder_path(const KNOWNFOLDERID& id)
-{
-    std::string path;
-    WCHAR* buffer;
-    HRESULT result = SHGetKnownFolderPath(id, 0, NULL, &buffer);
-    if (result == S_OK) {
-        auto length = lstrlenW(buffer);
-        path = wide_to_mb(buffer, length);
-        CoTaskMemFree(buffer);
-    }
-    return path;
-}
-
-std::string desktopPath()
-{
-    return known_folder_path(FOLDERID_Desktop);
-}
-
-std::string localAppDataPath()
-{
-    return known_folder_path(FOLDERID_LocalAppData);
-}
-
-std::string programDataPath()
-{
-    return known_folder_path(FOLDERID_ProgramData);
-}

src/lib/common/win32/KnownFolderPaths.h

@@ -1,24 +0,0 @@
-/*
-* barrier -- mouse and keyboard sharing utility
-* Copyright (C) 2018 Debauchee Open Source Group
-*
-* This package is free software; you can redistribute it and/or
-* modify it under the terms of the GNU General Public License
-* found in the file LICENSE that should have accompanied this file.
-*
-* This package is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#pragma once
-
-#include <string>
-
-std::string desktopPath();
-std::string localAppDataPath();
-std::string programDataPath();

src/lib/ipc/IpcLogOutputter.cpp

@@ -29,7 +29,6 @@
 #include "base/EventQueue.h"
 #include "base/TMethodEventJob.h"
 #include "base/TMethodJob.h"
-#include "base/Unicode.h"
 
 enum EIpcLogOutputter {
     kBufferMaxSize = 1000,
@@ -197,7 +196,7 @@ IpcLogOutputter::sendBuffer()
         return;
     }
 
-    IpcLogLineMessage message(Unicode::textToUTF8(getChunk(kMaxSendLines)));
+    IpcLogLineMessage message(getChunk(kMaxSendLines));
     m_sending = true;
     m_ipcServer.send(message, kIpcClientGui);
     m_sending = false;

src/lib/platform/MSWindowsScreen.cpp

@@ -41,9 +41,9 @@
 #include "base/IEventQueue.h"
 #include "base/TMethodEventJob.h"
 #include "base/TMethodJob.h"
-#include "common/win32/KnownFolderPaths.h"
 
 #include <string.h>
+#include <Shlobj.h>
 #include <comutil.h>
 #include <algorithm>
 
@@ -1916,12 +1916,14 @@ const std::string&
 MSWindowsScreen::getDropTarget() const
 {
     if (m_dropTargetPath.empty()) {
-        m_dropTargetPath = desktopPath();
+        // SHGetFolderPath is deprecated in vista, but use it for xp support.
-        if (!m_dropTargetPath.empty()) {
+        char desktopPath[MAX_PATH];
-            LOG((CLOG_DEBUG "using desktop for drop target: %s", m_dropTargetPath.c_str()));
+        if (SUCCEEDED(SHGetFolderPath(NULL, CSIDL_DESKTOP, NULL, 0, desktopPath))) {
+            m_dropTargetPath = std::string(desktopPath);
+            LOG((CLOG_INFO "using desktop for drop target: %s", m_dropTargetPath.c_str()));
         }
         else {
-            LOG((CLOG_ERR "failed to get desktop path, no drop target available"));
+            LOG((CLOG_ERR "failed to get desktop path, no drop target available, error=%d", GetLastError()));
         }
     }
     return m_dropTargetPath;