private static void SetActionOption(string value, Fields tokenType, ref ChangeCookieAction?action)
{
Debug.Assert(action != null || tokenType == Fields.Name);
switch (tokenType)
{
case Fields.Name:
action = new ChangeCookieAction(value);
break;
case Fields.Value:
action !.Value = value;
break;
case Fields.Domain:
// despite what spec says, an empty domain field is allowed in mod_rewrite
// by specifying NAME:VALUE:;
action !.Domain = string.IsNullOrEmpty(value) || value == ";"
? null
: value;
break;
case Fields.Lifetime:
if (string.IsNullOrEmpty(value))
{
break;
}
uint minutes;
if (!uint.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out minutes))
{
throw new FormatException(Resources.FormatError_CouldNotParseInteger(value));
}
action !.Lifetime = TimeSpan.FromMinutes(minutes);
break;
case Fields.Path:
action !.Path = value;
break;
case Fields.Secure:
action !.Secure = "secure".Equals(value, StringComparison.OrdinalIgnoreCase) ||
"true".Equals(value, StringComparison.OrdinalIgnoreCase) ||
value == "1";
break;
case Fields.HttpOnly:
action !.HttpOnly = "httponly".Equals(value, StringComparison.OrdinalIgnoreCase) ||
"true".Equals(value, StringComparison.OrdinalIgnoreCase) ||
value == "1";
break;
}
}
public void UnsetCookie()
{
var context = new RewriteContext {
HttpContext = new DefaultHttpContext()
};
var action = new ChangeCookieAction("Cookie");
action.ApplyAction(context, null, null);
var cookieHeaders = context.HttpContext.Response.Headers[HeaderNames.SetCookie];
var header = Assert.Single(cookieHeaders);
Assert.Equal($"Cookie=", header);
}
public void ZeroLifetime()
{
var context = new RewriteContext {
HttpContext = new DefaultHttpContext()
};
var action = new ChangeCookieAction("Cookie")
{
Value = "Chocolate Chip",
};
action.ApplyAction(context, null, null);
var cookieHeaders = context.HttpContext.Response.Headers[HeaderNames.SetCookie];
var header = Assert.Single(cookieHeaders);
Assert.Equal($"Cookie=Chocolate%20Chip", header);
}
/// <summary>
/// Creates a <see cref="ChangeCookieAction" /> <see href="https://httpd.apache.org/docs/current/rewrite/flags.html#flag_co" /> for details.
/// </summary>
/// <param name="flagValue">The flag</param>
/// <returns>The action</returns>
public ChangeCookieAction Create(string flagValue)
{
if (string.IsNullOrEmpty(flagValue))
{
throw new ArgumentException(nameof(flagValue));
}
var i = 0;
var separator = ':';
if (flagValue[0] == ';')
{
separator = ';';
i++;
}
ChangeCookieAction action = null;
var currentField = Fields.Name;
var start = i;
for (; i < flagValue.Length; i++)
{
if (flagValue[i] == separator)
{
var length = i - start;
SetActionOption(flagValue.Substring(start, length).Trim(), currentField, ref action);
currentField++;
start = i + 1;
}
}
if (i != start)
{
SetActionOption(flagValue.Substring(start).Trim(new[] { ' ', separator }), currentField, ref action);
}
if (currentField < Fields.Domain)
{
throw new FormatException(Resources.FormatError_InvalidChangeCookieFlag(flagValue));
}
return(action);
}
/// <summary>
/// Creates a <see cref="ChangeCookieAction" /> <see href="https://httpd.apache.org/docs/current/rewrite/flags.html#flag_co" /> for details.
/// </summary>
/// <param name="flagValue">The flag</param>
/// <returns>The action</returns>
public ChangeCookieAction Create(string flagValue)
{
if (string.IsNullOrEmpty(flagValue))
{
throw new ArgumentException(nameof(flagValue));
}
var i = 0;
var separator = ':';
if (flagValue[0] == ';')
{
separator = ';';
i++;
}
ChangeCookieAction action = null;
var currentField = Fields.Name;
var start = i;
for (; i < flagValue.Length; i++)
{
if (flagValue[i] == separator)
{
var length = i - start;
SetActionOption(flagValue.Substring(start, length).Trim(), currentField, ref action);
currentField++;
start = i + 1;
}
}
if (i != start)
{
SetActionOption(flagValue.Substring(start).Trim(new[] { ' ', separator }), currentField, ref action);
}
if (currentField < Fields.Domain)
{
throw new FormatException($"Error parsing the mod_rewrite rule. The cookie flag (CO) has an incorrect format '{flagValue}'.");
}
return(action);
}
public void SetsCookie()
{
var now = DateTimeOffset.UtcNow;
var context = new RewriteContext {
HttpContext = new DefaultHttpContext()
};
var action = new ChangeCookieAction("Cookie", () => now)
{
Value = "Chocolate Chip",
Domain = "contoso.com",
Lifetime = TimeSpan.FromMinutes(1440),
Path = "/recipes",
Secure = true,
HttpOnly = true
};
action.ApplyAction(context, null, null);
var cookieHeaders = context.HttpContext.Response.Headers[HeaderNames.SetCookie];
var header = Assert.Single(cookieHeaders);
Assert.Equal($"Cookie=Chocolate%20Chip; expires={HeaderUtilities.FormatDate(now.AddMinutes(1440))}; domain=contoso.com; path=/recipes; secure; httponly", header);
}