httpform.cxx

pwlib源码库

void PHTTPFieldArray::ExpandFieldNames(PString & text, PINDEX start, PINDEX & finish) const
{
  PString original = text(start, finish);
  PINDEX origFinish = finish;
  PINDEX finalFinish = finish;

  PINDEX fld = fields.GetSize();
  while (fld > 0) {
    fields[--fld].ExpandFieldNames(text, start, finish);

    PINDEX pos,len;
    static PRegularExpression RowNum("<?!--#form[ \t\r\n]+rownum[ \t\r\n]*-->?",
                                     PRegularExpression::Extended|PRegularExpression::IgnoreCase);
    while (text.FindRegEx(RowNum, pos, len, start, finish))
      SpliceAdjust(psprintf("%u", fld+1), text, pos, len, finish);

    static PRegularExpression SubForm("<?!--#form[ \t\r\n]+subform[ \t\r\n]*-->?",
                                      PRegularExpression::Extended|PRegularExpression::IgnoreCase);
    while (text.FindRegEx(SubForm, pos, len, start, finish)) {
      PString fmt = fullName;
      if (fmt.Find("%u") == P_MAX_INDEX)
        fmt += " %u";
      SpliceAdjust("subformprefix=" + PURL::TranslateString(psprintf(fmt, fld+1), PURL::QueryTranslation),
                   text, pos, len, finish);
    }

    static PRegularExpression RowControl("<?!--#form[ \t\r\n]+rowcontrol[ \t\r\n]*-->?",
                                         PRegularExpression::Extended|PRegularExpression::IgnoreCase);
    while (text.FindRegEx(RowControl, pos, len, start, finish)) {
      PHTML html(PHTML::InForm);
      if (canAddElements)
        AddArrayControlBox(html, fld);
      SpliceAdjust(html, text, pos, len, finish);
    }

    static PRegularExpression RowCheck("<?!--#form[ \t\r\n]+row(add|delete)[ \t\r\n]*(-?[^-])*-->?",
                                         PRegularExpression::Extended|PRegularExpression::IgnoreCase);
    while (text.FindRegEx(RowCheck, pos, len, start, finish)) {
      PStringStream checkbox;
      if (canAddElements) {
        PINDEX titlepos = text.Find("row", start)+3;
        BOOL adding = text[titlepos] == 'a';
        if (( adding && fld >= fields.GetSize()-1) ||
            (!adding && fld <  fields.GetSize()-1)) {
          titlepos += adding ? 3 : 6;
          PINDEX dashes = text.Find("--", titlepos);
          PString title = text(titlepos, dashes-1).Trim();
          if (title.IsEmpty() && adding)
            title = "Add";
          checkbox << title
                   << "<INPUT TYPE=checkbox NAME=\""
                   << fields[fld].GetName()
                   << ArrayControlBox
                   << "\" VALUE="
                   << (adding ? ArrayControlAdd : ArrayControlRemove)
                   << '>';
        }
      }
      SpliceAdjust(checkbox, text, pos, len, finish);
    }

    static PRegularExpression SelectRow("<select[ \t\r\n][^>]*name[ \t\r\n]*=[ \t\r\n]*\"!--#form[ \t\r\n]+rowselect[ \t\r\n]*--\"[^>]*>",
                                        PRegularExpression::Extended|PRegularExpression::IgnoreCase);
    static PRegularExpression SelEndRegEx("</select[^>]*>",
                                          PRegularExpression::Extended|PRegularExpression::IgnoreCase);
    PINDEX begin, end;
    while (FindSpliceBlock(SelectRow, SelEndRegEx, text, 0, pos, len, begin, end)) {
      PStringList options = GetArrayControlOptions(fld, fields.GetSize()-1, orderedArray);
      AdjustSelectOptions(text, begin, end, options[0], options, finish);
      static PRegularExpression RowSelect("!--#form[ \t\r\n]+rowselect[ \t\r\n]*--",
                                          PRegularExpression::Extended|PRegularExpression::IgnoreCase);
      if (text.FindRegEx(RowSelect, pos, len, pos, begin))
        SpliceAdjust(fields[fld].GetName() + ArrayControlBox, text, pos, len, finish);
    }

    finalFinish += finish - origFinish;

    if (fld > 0) {
      text.Splice(original, start, 0);
      finish = origFinish;
      finalFinish += finish - start;
    }
  }

  finish = finalFinish;
}


static int SplitArraySizeKey(const PString & fullName,
                             PString & section, PString & key)
{
  static const char ArraySize[] = "Array Size";
  PINDEX pos = fullName.Find("%u");
  if (pos == P_MAX_INDEX)
    return SplitConfigKey(fullName & ArraySize, section, key);

  PINDEX endPos = fullName.GetLength() - 1;
  if (fullName[endPos] == '\\')
    endPos--;
  return SplitConfigKey(fullName.Left(pos) & ArraySize & fullName(pos+2, endPos), section, key);
}


void PHTTPFieldArray::LoadFromConfig(PConfig & cfg)
{
  if (canAddElements) {
    PString section, key;
    switch (SplitArraySizeKey(fullName, section, key)) {
      case 1 :
        SetSize(cfg.GetInteger(key, GetSize()));
        break;
      case 2 :
        SetSize(cfg.GetInteger(section, key, GetSize()));
    }
  }
  PHTTPCompositeField::LoadFromConfig(cfg);
}


void PHTTPFieldArray::SaveToConfig(PConfig & cfg) const
{
  if (canAddElements) {
    PString section, key;
    switch (SplitArraySizeKey(fullName, section, key)) {
      case 1 :
        cfg.SetInteger(key, GetSize());
        break;
      case 2 :
        cfg.SetInteger(section, key, GetSize());
    }
  }
  PHTTPCompositeField::SaveToConfig(cfg);
}


void PHTTPFieldArray::SetArrayFieldName(PINDEX idx) const
{
  PString fmt = fullName;
  if (fmt.Find("%u") == P_MAX_INDEX)
    fmt += " %u";
  fields[idx].SetName(psprintf(fmt, idx+1));
}


void PHTTPFieldArray::SetAllValues(const PStringToString & data)
{
  PHTTPFieldList newFields;
  newFields.DisallowDeleteObjects();
  PINDEX i;
  for (i = 0; i < fields.GetSize(); i++)
    newFields.Append(fields.GetAt(i));

  BOOL lastFieldIsSet = FALSE;
  PINDEX size = fields.GetSize();
  for (i = 0; i < size; i++) {
    PHTTPField * fieldPtr = &fields[i];
    PINDEX pos = newFields.GetObjectsIndex(fieldPtr);
    fieldPtr->SetAllValues(data);

    PString control = data(fieldPtr->GetName() + ArrayControlBox);
    if (control == ArrayControlMoveUp) {
      if (pos > 0) {
        newFields.SetAt(pos, newFields.GetAt(pos-1));
        newFields.SetAt(pos-1, fieldPtr);
      }
    }
    else if (control == ArrayControlMoveDown) {
      if (size > 2 && pos < size-2) {
        newFields.SetAt(pos, newFields.GetAt(pos+1));
        newFields.SetAt(pos+1, fieldPtr);
      }
    }
    else if (control == ArrayControlToTop) {
      newFields.RemoveAt(pos);
      newFields.InsertAt(0, fieldPtr);
    }
    else if (control == ArrayControlToBottom) {
      newFields.RemoveAt(pos);
      newFields.Append(fieldPtr);
    }
    else if (control == ArrayControlAddTop) {
      if (i == size-1) {
        newFields.RemoveAt(pos);
        newFields.InsertAt(0, fieldPtr);
        lastFieldIsSet = TRUE;
      }
    }
    else if (control == ArrayControlAddBottom || control == ArrayControlAdd) {
      if (i == size-1) {
        newFields.RemoveAt(pos);
        newFields.Append(fieldPtr);
        lastFieldIsSet = TRUE;
      }
    }
    else if (control == ArrayControlIgnore) {
      newFields.RemoveAt(pos);
      newFields.Append(fieldPtr);
    }
    else if (control == ArrayControlRemove)
      newFields.RemoveAt(pos);
  }

  fields.DisallowDeleteObjects();
  for (i = 0; i < newFields.GetSize(); i++)
    fields.Remove(newFields.GetAt(i));
  fields.AllowDeleteObjects();
  fields.RemoveAll();

  for (i = 0; i < newFields.GetSize(); i++) {
    fields.Append(newFields.GetAt(i));
    SetArrayFieldName(i);
  }

  if (lastFieldIsSet && canAddElements)
    AddBlankField();
}


PINDEX PHTTPFieldArray::GetSize() const
{
  PINDEX size = fields.GetSize();
  PAssert(size > 0, PLogicError);
  if (canAddElements)
    size--;
  return size;
}


void PHTTPFieldArray::AddBlankField()
{
  fields.Append(baseField->NewField());
  SetArrayFieldName(fields.GetSize()-1);
}


PStringArray PHTTPFieldArray::GetStrings(PConfig & cfg)
{
  LoadFromConfig(cfg);

  PStringArray values(GetSize());

  for (PINDEX i = 0; i < GetSize(); i++)
    values[i] = fields[i].GetValue(FALSE);

  return values;
}


void PHTTPFieldArray::SetStrings(PConfig & cfg, const PStringArray & values)
{
  SetSize(values.GetSize());
  for (PINDEX i = 0; i < values.GetSize(); i++)
    fields[i].SetValue(values[i]);

  SaveToConfig(cfg);
}


//////////////////////////////////////////////////////////////////////////////
// PHTTPStringField

PHTTPStringField::PHTTPStringField(const char * name,
                                   PINDEX siz,
                                   const char * initVal,
                                   const char * help)
  : PHTTPField(name, NULL, help),
    value(initVal != NULL ? initVal : ""),
    initialValue(value)
{
  size = siz;
}


PHTTPStringField::PHTTPStringField(const char * name,
                                   const char * title,
                                   PINDEX siz,
                                   const char * initVal,
                                   const char * help)
  : PHTTPField(name, title, help),
    value(initVal != NULL ? initVal : ""),
    initialValue(value)
{
  size = siz;
}


PHTTPField * PHTTPStringField::NewField() const
{
  return new PHTTPStringField(baseName, title, size, initialValue, help);
}


void PHTTPStringField::GetHTMLTag(PHTML & html) const
{
  if (size < 128)
    html << PHTML::InputText(fullName, size, value);
  else
    html << PHTML::TextArea(fullName, (size+79)/80, 80) << value << PHTML::TextArea(fullName);
}


void PHTTPStringField::SetValue(const PString & newVal)
{
  value = newVal;
}


PString PHTTPStringField::GetValue(BOOL dflt) const
{
  if (dflt)
    return initialValue;
  else
    return value;
}


//////////////////////////////////////////////////////////////////////////////
// PHTTPPasswordField

PHTTPPasswordField::PHTTPPasswordField(const char * name,
                                       PINDEX siz,
                                       const char * initVal,
                                       const char * help)
  : PHTTPStringField(name, siz, initVal, help)
{
}


PHTTPPasswordField::PHTTPPasswordField(const char * name,
                                       const char * title,
                                       PINDEX siz,
                                       const char * initVal,
                                       const char * help)
  : PHTTPStringField(name, title, siz, initVal, help)
{
}


PHTTPField * PHTTPPasswordField::NewField() const
{
  return new PHTTPPasswordField(baseName, title, size, initialValue, help);
}


void PHTTPPasswordField::GetHTMLTag(PHTML & html) const
{
  html << PHTML::InputPassword(fullName, size, value);
}


static const PTEACypher::Key PasswordKey = {
  {
    103,  60, 222,  17, 128, 157,  31, 137,
    133,  64,  82, 148,  94, 136,   4, 209
  }
};

void PHTTPPasswordField::SetValue(const PString & newVal)
{
  value = Decrypt(newVal);
}


PString PHTTPPasswordField::GetValue(BOOL dflt) const
{
  if (dflt)
    return initialValue;

  PTEACypher crypt(PasswordKey);
  return crypt.Encode(value);
}


PString PHTTPPasswordField::Decrypt(const PString & pword)
{
  PString clear;
  PTEACypher crypt(PasswordKey);
  return crypt.Decode(pword, clear) ? clear : pword;
}


//////////////////////////////////////////////////////////////////////////////
// PHTTPIntegerField

PHTTPIntegerField::PHTTPIntegerField(const char * nam,
                                     int lo, int hig,
                                     int initVal,
                                     const char * unit,
                                     const char * help)
  : PHTTPField(nam, NULL, help), units(unit != NULL ? unit : "")
{
  low = lo;
  high = hig;
  value = initialValue = initVal;
}

PHTTPIntegerField::PHTTPIntegerField(const char * nam,
                                     const char * titl,
                                     int lo, int hig,
                                     int initVal,
                                     const char * unit,
                                     const char * help)
  : PHTTPField(nam, titl, help), units(unit != NULL ? unit : "")
{
  low = lo;
  high = hig;
  value = initialValue = initVal;
}


PHTTPField * PHTTPIntegerField::NewField() const
{
  return new PHTTPIntegerField(baseName, title, low, high, initialValue, units, help);
}


void PHTTPIntegerField::GetHTMLTag(PHTML & html) const
{
  html << PHTML::InputRange(fullName, low, high, value) << "  " << units;
}


void PHTTPIntegerField::SetValue(const PString & newVal)
{
  value = newVal.AsInteger();
}


PString PHTTPIntegerField::GetValue(BOOL dflt) const
{
  return PString(PString::Signed, dflt ? initialValue : value);
}


void PHTTPIntegerField::LoadFromConfig(PConfig & cfg)
{
  PString section, key;
  switch (SplitConfigKey(fullName, section, key)) {
    case 1 :
      value = cfg.GetInteger(key, initialValue);
      break;
    case 2 :
      value = cfg.GetInteger(section, key, initialValue);
  }
}