private bool AddFieldToCookie(ref Cookie ck, PairItem pairInfo)
{
bool added = false;
if (pairInfo.Key == "")
{
return(false);
}
string lowerKey = pairInfo.Key.ToLower();
switch (lowerKey)
{
case "expires":
bool parseDatetimeOk;
parseDatetimeOk = DateTime.TryParse(pairInfo.Value, out DateTime expireDatetime);
if (parseDatetimeOk)
{
ck.Expires = expireDatetime;
if (DateTime.Now.Ticks > ck.Expires.Ticks)
{
ck.Expired = true;
}
added = true;
}
break;
case "domain":
ck.Domain = pairInfo.Value;
added = true;
break;
case "secure":
ck.Secure = true;
added = true;
break;
case "path":
ck.Path = pairInfo.Value;
added = true;
break;
case "httponly":
ck.HttpOnly = true;
added = true;
break;
case "version":
if (int.TryParse(pairInfo.Value, out int versionValue))
{
ck.Version = versionValue;
added = true;
}
break;
}
return(added);
}
private bool ParseSingleCookie(string cookieStr, ref Cookie ck)
{
bool parsedOk = true;
string[] expressions = cookieStr.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
PairItem pair = new PairItem();
if (ParseCookieNameValue(expressions[0], out pair))
{
ck.Name = pair.Key;
ck.Value = pair.Value;
string[] fieldExpressions = GetSubStrArr(expressions, 1, expressions.Length - 1);
bool noDeisignateExpires = true;
foreach (string eachExpression in fieldExpressions)
{
//parse key and value
if (ParseCookieField(eachExpression, out pair))
{
// add to cookie field if possible
bool addedOk = false;
addedOk = AddFieldToCookie(ref ck, pair);
if (addedOk && string.Equals(pair.Key, StrExpires))
{
noDeisignateExpires = false;
}
}
else
{
parsedOk = false;
break;
}
}
if (noDeisignateExpires)
{
ck.Expires = DateTime.MaxValue;
}
}
else
{
parsedOk = false;
}
return(parsedOk);
}
private bool ParseCookieNameValue(string ckNameValueExpr, out PairItem pair)
{
bool parsedOK = false;
if (ckNameValueExpr == "")
{
pair.Key = "";
pair.Value = "";
parsedOK = false;
}
else
{
ckNameValueExpr = ckNameValueExpr.Trim();
int equalPos = ckNameValueExpr.IndexOf('=');
if (equalPos > 0) // is valid expression
{
pair.Key = ckNameValueExpr.Substring(0, equalPos);
pair.Key = pair.Key.Trim();
if (IsValidCookieName(pair.Key))
{
// only process while is valid cookie field
pair.Value = ckNameValueExpr.Substring(equalPos + 1);
pair.Value = pair.Value.Trim();
parsedOK = true;
}
else
{
pair.Key = "";
pair.Value = "";
parsedOK = false;
}
}
else
{
pair.Key = "";
pair.Value = "";
parsedOK = false;
}
}
return(parsedOK);
}
private bool ParseCookieField(string ckFieldExpr, out PairItem pair)
{
bool parsedOK = false;
if (ckFieldExpr == "")
{
pair.Key = "";
pair.Value = "";
parsedOK = false;
}
else
{
ckFieldExpr = ckFieldExpr.Trim();
switch (ckFieldExpr.ToLower())
{
case "httponly":
pair.Key = "httponly";
//pair.value = "";
pair.Value = "true";
parsedOK = true;
break;
case "secure":
pair.Key = "secure";
//pair.value = "";
pair.Value = "true";
parsedOK = true;
break;
// normal cookie field
default:
{
int equalPos = ckFieldExpr.IndexOf('=');
if (equalPos > 0)
{
pair.Key = ckFieldExpr.Substring(0, equalPos);
pair.Key = pair.Key.Trim();
if (IsValidCookieField(pair.Key))
{
pair.Value = ckFieldExpr.Substring(equalPos + 1);
pair.Value = pair.Value.Trim();
parsedOK = true;
}
else
{
pair.Key = "";
pair.Value = "";
parsedOK = false;
}
}
else
{
pair.Key = "";
pair.Value = "";
parsedOK = false;
}
break;
}
}
}
return(parsedOK);
}
