From: Hannah von Reth <hannah.vonreth@owncloud.com>
Date: Fri, 12 Feb 2021 12:06:13 +0000 (+0100)
Subject: Fix Windows long path issue introduced in dd641fae997d71c8396b77def2fa25ad96fdf47f
X-Git-Tag: archive/raspbian/3.16.7-1_deb13u1+rpi1~1^2~12^2~18^2~278^2~23
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=789e0e45d5887e116b08cc1848b767f36a9fe228;p=nextcloud-desktop.git

Fix Windows long path issue introduced in dd641fae997d71c8396b77def2fa25ad96fdf47f
---

diff --git a/src/csync/vio/csync_vio_local_win.cpp b/src/csync/vio/csync_vio_local_win.cpp
index 7aa07f4da..4ddd4f545 100644
--- a/src/csync/vio/csync_vio_local_win.cpp
+++ b/src/csync/vio/csync_vio_local_win.cpp
@@ -34,6 +34,7 @@
 #include "csync.h"
 #include "vio/csync_vio_local.h"
 #include "common/filesystembase.h"
+#include "common/utility.h"
 
 #include <QtCore/QLoggingCategory>
 
@@ -52,8 +53,6 @@ struct csync_vio_handle_t {
   QString path; // Always ends with '\'
 };
 
-static int _csync_vio_local_stat_mb(const QString &path, csync_file_stat_t *buf);
-
 csync_vio_handle_t *csync_vio_local_opendir(const QString &name) {
 
     QScopedPointer<csync_vio_handle_t> handle(new csync_vio_handle_t{});
@@ -175,12 +174,9 @@ std::unique_ptr<csync_file_stat_t> csync_vio_local_readdir(csync_vio_handle_t *h
     file_stat->size = (handle->ffd.nFileSizeHigh * ((int64_t)(MAXDWORD)+1)) + handle->ffd.nFileSizeLow;
     file_stat->modtime = FileTimeToUnixTime(&handle->ffd.ftLastWriteTime, &rem);
 
-    QString fullPath;
-    fullPath.reserve(handle->path.size() + std::wcslen(handle->ffd.cFileName));
-    fullPath += handle->path; // path always ends with '\', by construction
-    fullPath += QString::fromWCharArray(handle->ffd.cFileName);
+    // path always ends with '\', by construction
 
-    if (_csync_vio_local_stat_mb(fullPath, file_stat.get()) < 0) {
+    if (csync_vio_local_stat(handle->path + QString::fromWCharArray(handle->ffd.cFileName), file_stat.get()) < 0) {
         // Will get excluded by _csync_detect_update.
         file_stat->type = ItemTypeSkip;
     }
@@ -188,14 +184,7 @@ std::unique_ptr<csync_file_stat_t> csync_vio_local_readdir(csync_vio_handle_t *h
     return file_stat;
 }
 
-
 int csync_vio_local_stat(const QString &uri, csync_file_stat_t *buf)
-{
-    int rc = _csync_vio_local_stat_mb(uri, buf);
-    return rc;
-}
-
-static int _csync_vio_local_stat_mb(const QString &path, csync_file_stat_t *buf)
 {
     /* Almost nothing to do since csync_vio_local_readdir already filled up most of the information
        But we still need to fetch the file ID.
@@ -206,21 +195,19 @@ static int _csync_vio_local_stat_mb(const QString &path, csync_file_stat_t *buf)
     BY_HANDLE_FILE_INFORMATION fileInfo;
     ULARGE_INTEGER FileIndex;
 
-    const auto longPath = OCC::FileSystem::longWinPath(path);
-
-    h = CreateFileW(longPath.toStdWString().data(), 0, FILE_SHARE_WRITE | FILE_SHARE_READ | FILE_SHARE_DELETE,
-                     nullptr, OPEN_EXISTING,
-                     FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT,
-                     nullptr );
+    h = CreateFileW(reinterpret_cast<const wchar_t *>(OCC::FileSystem::longWinPath(uri).utf16()), 0, FILE_SHARE_WRITE | FILE_SHARE_READ | FILE_SHARE_DELETE,
+        NULL, OPEN_EXISTING,
+        FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT,
+        NULL);
     if( h == INVALID_HANDLE_VALUE ) {
-        qCCritical(lcCSyncVIOLocal) << "CreateFileW failed on" << longPath;
         errno = GetLastError();
+        qCCritical(lcCSyncVIOLocal) << "CreateFileW failed on" << uri << OCC::Utility::formatWinError(errno);
         return -1;
     }
 
     if(!GetFileInformationByHandle( h, &fileInfo ) ) {
-        qCCritical(lcCSyncVIOLocal) << "GetFileInformationByHandle failed on" << longPath;
         errno = GetLastError();
+        qCCritical(lcCSyncVIOLocal) << "GetFileInformationByHandle failed on" << uri << OCC::Utility::formatWinError(errno);
         CloseHandle(h);
         return -1;
     }
diff --git a/src/libsync/filesystem.cpp b/src/libsync/filesystem.cpp
index af84f4d2f..7c4f5b626 100644
--- a/src/libsync/filesystem.cpp
+++ b/src/libsync/filesystem.cpp
@@ -115,7 +115,7 @@ static qint64 getSizeWithCsync(const QString &filename)
     if (csync_vio_local_stat(filename, &stat) != -1) {
         result = stat.size;
     } else {
-        qCWarning(lcFileSystem) << "Could not get size for" << filename << "with csync";
+        qCWarning(lcFileSystem) << "Could not get size for" << filename << "with csync" << Utility::formatWinError(errno);
     }
     return result;
 }