private bool GuessFieldTypes()
{
CsvOptions opt = GetCsvOptions();
if(opt == null) { Debug.Assert(false); return false; }
string strData = GetDecodedText();
CsvStreamReaderEx csv = new CsvStreamReaderEx(strData, opt);
string[] v;
while(true)
{
v = csv.ReadLine();
if(v == null) return false;
if(v.Length == 0) continue;
if((v.Length == 1) && (v[0].Length == 0)) continue;
break;
}
if(v.Length <= 3) return false;
CsvFieldInfo[] vFields = new CsvFieldInfo[v.Length];
int nDetermined = 0;
for(int i = 0; i < v.Length; ++i)
{
CsvFieldInfo fi = GuessFieldType(v[i]);
if(fi != null) ++nDetermined;
else fi = new CsvFieldInfo(CsvFieldType.Ignore, null, null);
vFields[i] = fi;
}
// Accept the guesses only if at least half of them are
// probably correct
if(nDetermined < (v.Length + 1) / 2) return false;
m_lvFields.Items.Clear();
foreach(CsvFieldInfo fi in vFields)
AddCsvField(fi.Type, fi.Name, fi.Format);
return true;
}
private void PerformImport(PwGroup pgStorage, bool bCreatePreview)
{
List<CsvFieldInfo> lFields = GetCsvFieldInfos();
if(bCreatePreview)
{
int dx = m_lvImportPreview.ClientRectangle.Width; // Before clearing
m_lvImportPreview.Items.Clear();
m_lvImportPreview.Columns.Clear();
foreach(CsvFieldInfo cfi in lFields)
{
string strCol = CsvFieldToString(cfi.Type);
if(cfi.Type == CsvFieldType.CustomString)
strCol = (cfi.Name ?? string.Empty);
m_lvImportPreview.Columns.Add(strCol, dx / lFields.Count);
}
}
CsvOptions opt = GetCsvOptions();
if(opt == null) { Debug.Assert(bCreatePreview); return; }
string strData = GetDecodedText();
CsvStreamReaderEx csr = new CsvStreamReaderEx(strData, opt);
Dictionary<string, PwGroup> dGroups = new Dictionary<string, PwGroup>();
dGroups[string.Empty] = pgStorage;
if(bCreatePreview) m_lvImportPreview.BeginUpdate();
DateTime dtNow = DateTime.Now;
DateTime dtNoExpire = KdbTime.NeverExpireTime.ToDateTime();
bool bIgnoreFirstRow = m_cbIgnoreFirst.Checked;
bool bIsFirstRow = true;
bool bMergeGroups = m_cbMergeGroups.Checked;
while(true)
{
string[] v = csr.ReadLine();
if(v == null) break;
if(v.Length == 0) continue;
if((v.Length == 1) && (v[0].Length == 0)) continue;
if(bIsFirstRow && bIgnoreFirstRow)
{
bIsFirstRow = false;
continue;
}
bIsFirstRow = false;
PwGroup pg = pgStorage;
PwEntry pe = new PwEntry(true, true);
ListViewItem lvi = null;
for(int i = 0; i < Math.Min(v.Length, lFields.Count); ++i)
{
string strField = v[i];
CsvFieldInfo cfi = lFields[i];
if(cfi.Type == CsvFieldType.Ignore) { }
else if(cfi.Type == CsvFieldType.Group)
pg = FindCreateGroup(strField, pgStorage, dGroups,
cfi.Format, opt, bMergeGroups);
else if(cfi.Type == CsvFieldType.Title)
ImportUtil.AppendToField(pe, PwDefs.TitleField,
strField, m_pwDatabase);
else if(cfi.Type == CsvFieldType.UserName)
ImportUtil.AppendToField(pe, PwDefs.UserNameField,
strField, m_pwDatabase);
else if(cfi.Type == CsvFieldType.Password)
ImportUtil.AppendToField(pe, PwDefs.PasswordField,
strField, m_pwDatabase);
else if(cfi.Type == CsvFieldType.Url)
ImportUtil.AppendToField(pe, PwDefs.UrlField,
strField, m_pwDatabase);
else if(cfi.Type == CsvFieldType.Notes)
ImportUtil.AppendToField(pe, PwDefs.NotesField,
strField, m_pwDatabase);
else if(cfi.Type == CsvFieldType.CustomString)
ImportUtil.AppendToField(pe, (string.IsNullOrEmpty(cfi.Name) ?
PwDefs.NotesField : cfi.Name), strField, m_pwDatabase);
else if(cfi.Type == CsvFieldType.CreationTime)
pe.CreationTime = ParseDateTime(ref strField, cfi, dtNow);
// else if(cfi.Type == CsvFieldType.LastAccessTime)
// pe.LastAccessTime = ParseDateTime(ref strField, cfi, dtNow);
else if(cfi.Type == CsvFieldType.LastModTime)
pe.LastModificationTime = ParseDateTime(ref strField, cfi, dtNow);
else if(cfi.Type == CsvFieldType.ExpiryTime)
{
bool bParseSuccess;
pe.ExpiryTime = ParseDateTime(ref strField, cfi, dtNow,
out bParseSuccess);
pe.Expires = (bParseSuccess && (pe.ExpiryTime != dtNoExpire));
}
else if(cfi.Type == CsvFieldType.Tags)
{
List<string> lTags = StrUtil.StringToTags(strField);
foreach(string strTag in lTags)
pe.AddTag(strTag);
}
else { Debug.Assert(false); }
if(bCreatePreview)
{
strField = StrUtil.MultiToSingleLine(strField);
if(lvi != null) lvi.SubItems.Add(strField);
else lvi = m_lvImportPreview.Items.Add(strField);
}
}
if(bCreatePreview)
{
// Create remaining subitems
for(int r = v.Length; r < lFields.Count; ++r)
{
if(lvi != null) lvi.SubItems.Add(string.Empty);
else lvi = m_lvImportPreview.Items.Add(string.Empty);
}
}
pg.AddEntry(pe, true);
}
if(bCreatePreview)
{
m_lvImportPreview.EndUpdate();
ProcessResize();
}
}
public void Read(CsvStreamReaderEx csr)
{
if (csr == null)
{
Debug.Assert(false); return;
}
string[] vHeader;
while (true)
{
vHeader = csr.ReadLine();
if (vHeader == null)
{
return;
}
if (vHeader.Length == 0)
{
continue;
}
if ((vHeader.Length == 1) && (vHeader[0].Length == 0))
{
continue;
}
break;
}
m_dColumns.Clear();
CsvTableDataHandler <T>[] vHandlers = new CsvTableDataHandler <T> [vHeader.Length];
for (int i = vHeader.Length - 1; i >= 0; --i)
{
string str = vHeader[i];
m_dColumns[str] = i;
CsvTableDataHandler <T> f;
m_dHandlers.TryGetValue(str, out f);
vHandlers[i] = f;
}
while (true)
{
string[] vRow = csr.ReadLine();
if (vRow == null)
{
break;
}
if (vRow.Length == 0)
{
continue;
}
if ((vRow.Length == 1) && (vRow[0].Length == 0))
{
continue;
}
T t = ((m_fObjectNew != null) ? m_fObjectNew(vRow) : default(T));
Debug.Assert(vRow.Length == vHandlers.Length);
int m = Math.Min(vRow.Length, vHandlers.Length);
for (int i = 0; i < m; ++i)
{
CsvTableDataHandler <T> f = vHandlers[i];
if (f != null)
{
f(vRow[i], t, vRow);
}
}
if (m_fObjectCommit != null)
{
m_fObjectCommit(t, vRow);
}
}
}