// properties
// methods
//
// Get
//
// Gets the next cookie
//
// Inputs:
// Nothing
//
// Outputs:
// Nothing
//
// Assumes:
// Nothing
//
// Returns:
// new cookie object, or null if there's no more
//
// Throws:
// Nothing
//
internal CookieInternal Get()
{
CookieInternal cookie = null;
// only first ocurence of an attribute value must be counted
bool commentSet = false;
bool commentUriSet = false;
bool domainSet = false;
bool expiresSet = false;
bool pathSet = false;
bool portSet = false; //special case as it may have no value in header
bool versionSet = false;
bool secureSet = false;
bool discardSet = false;
bool rejected = false;
do
{
CookieToken token = m_tokenizer.Next(cookie == null, true);
if (cookie == null && (token == CookieToken.NameValuePair || token == CookieToken.Attribute))
{
cookie = new CookieInternal();
if (cookie.InternalSetName(m_tokenizer.Name) == false)
{
//will be rejected
cookie.InternalSetName(string.Empty);
rejected = true;
}
cookie.Value = m_tokenizer.Value;
}
else
{
switch (token)
{
case CookieToken.NameValuePair:
switch (m_tokenizer.Token)
{
case CookieToken.Comment:
{
if (!commentSet)
{
commentSet = true;
cookie.Comment = m_tokenizer.Value;
}
break;
}
case CookieToken.CommentUrl:
{
if (!commentUriSet)
{
commentUriSet = true;
if (Uri.TryCreate(CheckQuoted(m_tokenizer.Value), UriKind.Absolute,
out var parsed))
{
cookie.CommentUri = parsed;
}
}
break;
}
case CookieToken.Domain:
{
if (!domainSet)
{
domainSet = true;
cookie.Domain = CheckQuoted(m_tokenizer.Value);
cookie.IsQuotedDomain = m_tokenizer.Quoted;
}
break;
}
case CookieToken.Expires:
{
if (!expiresSet)
{
expiresSet = true;
const DateTimeStyles style = DateTimeStyles.AllowWhiteSpaces | DateTimeStyles.AssumeUniversal;
var unQuotedValue = CheckQuoted(m_tokenizer.Value);
if (DateTime.TryParse(unQuotedValue,
CultureInfo.InvariantCulture, style, out var expires))
{
cookie.Expires = expires;
}
else if (DateTime.TryParseExact(unQuotedValue, _dateTimeFormats,
DateTimeCultureInfo.TwoDigitYear, style, out expires))
{
cookie.Expires = expires;
}
else
{
//this cookie will be rejected
cookie.InternalSetName(string.Empty);
rejected = true;
}
}
break;
}
case CookieToken.MaxAge:
{
if (!expiresSet)
{
expiresSet = true;
if (int.TryParse(CheckQuoted(m_tokenizer.Value), out var parsed))
{
cookie.Expires = DateTime.Now.AddSeconds((double)parsed);
}
else
{
//this cookie will be rejected
cookie.InternalSetName(string.Empty);
rejected = true;
}
}
break;
}
case CookieToken.Path:
{
if (!pathSet)
{
pathSet = true;
cookie.Path = m_tokenizer.Value;
}
break;
}
case CookieToken.Port:
{
if (!portSet)
{
portSet = true;
try
{
cookie.Port = m_tokenizer.Value;
}
catch
{
//this cookie will be rejected
cookie.InternalSetName(string.Empty);
rejected = true;
}
}
break;
}
case CookieToken.Version:
{
if (!versionSet)
{
versionSet = true;
if (int.TryParse(CheckQuoted(m_tokenizer.Value), out var parsed))
{
cookie.Version = parsed;
cookie.IsQuotedVersion = m_tokenizer.Quoted;
}
else
{
//this cookie will be rejected
cookie.InternalSetName(string.Empty);
rejected = true;
}
}
break;
}
}
break;
case CookieToken.Attribute:
switch (m_tokenizer.Token)
{
case CookieToken.Discard:
if (!discardSet)
{
discardSet = true;
cookie.Discard = true;
}
break;
case CookieToken.Secure:
if (!secureSet)
{
secureSet = true;
cookie.Secure = true;
}
break;
case CookieToken.HttpOnly:
cookie.HttpOnly = true;
break;
case CookieToken.Port:
if (!portSet)
{
portSet = true;
cookie.Port = string.Empty;
}
break;
}
break;
}
}
} while (!m_tokenizer.Eof && !m_tokenizer.EndOfCookie && !rejected);
return(cookie);
}
// twin parsing method, different enough that it's better to split it into
// a different method
internal CookieInternal GetServer()
{
CookieInternal cookie = m_savedCookie;
m_savedCookie = null;
// only first ocurence of an attribute value must be counted
bool domainSet = false;
bool pathSet = false;
bool portSet = false; //special case as it may have no value in header
do
{
bool first = cookie == null || cookie.Name == null || cookie.Name.Length == 0;
CookieToken token = m_tokenizer.Next(first, false);
if (first && (token == CookieToken.NameValuePair || token == CookieToken.Attribute))
{
if (cookie == null)
{
cookie = new CookieInternal();
}
if (cookie.InternalSetName(m_tokenizer.Name) == false)
{
//will be rejected
cookie.InternalSetName(string.Empty);
}
cookie.Value = m_tokenizer.Value;
}
else
{
switch (token)
{
case CookieToken.NameValuePair:
switch (m_tokenizer.Token)
{
case CookieToken.Domain:
if (!domainSet)
{
domainSet = true;
cookie.Domain = CheckQuoted(m_tokenizer.Value);
cookie.IsQuotedDomain = m_tokenizer.Quoted;
}
break;
case CookieToken.Path:
if (!pathSet)
{
pathSet = true;
cookie.Path = m_tokenizer.Value;
}
break;
case CookieToken.Port:
if (!portSet)
{
portSet = true;
try
{
cookie.Port = m_tokenizer.Value;
}
catch (CookieException)
{
//this cookie will be rejected
cookie.InternalSetName(string.Empty);
}
}
break;
case CookieToken.Version:
// this is a new cookie, this token is for the next cookie.
m_savedCookie = new CookieInternal();
int parsed;
if (int.TryParse(m_tokenizer.Value, out parsed))
{
m_savedCookie.Version = parsed;
}
return(cookie);
case CookieToken.Unknown:
// this is a new cookie, the token is for the next cookie.
m_savedCookie = new CookieInternal();
if (m_savedCookie.InternalSetName(m_tokenizer.Name) == false)
{
//will be rejected
m_savedCookie.InternalSetName(string.Empty);
}
m_savedCookie.Value = m_tokenizer.Value;
return(cookie);
}
break;
case CookieToken.Attribute:
switch (m_tokenizer.Token)
{
case CookieToken.Port:
if (!portSet)
{
portSet = true;
cookie.Port = string.Empty;
}
break;
}
break;
}
}
} while (!m_tokenizer.Eof && !m_tokenizer.EndOfCookie);
return(cookie);
}
