private bool MatchClientMinimumVersion(int start, ref int end, ClientMappingList.MatchingParameters parameters)
{
ExTraceGlobals.FormsRegistryCallTracer.TraceDebug <UserAgentParser.UserAgentVersion, int, int>((long)this.GetHashCode(), "ClientMappingList.MatchClientMinimumVersion version = {0}, start = {1}, end = {2}", parameters.Version, start, end);
if (this.items[start].MinimumVersion.CompareTo(parameters.Version) > 0)
{
return(false);
}
int num = start + 1;
while (num <= end && this.items[num].MinimumVersion.CompareTo(parameters.Version) <= 0)
{
num++;
}
end = num - 1;
return(true);
}
private bool IsMatch(int index, ClientMappingList.ClientAttribute attribute, ClientMappingList.MatchingParameters parameters)
{
switch (attribute)
{
case ClientMappingList.ClientAttribute.First:
return(this.items[index].Application == parameters.Application);
case ClientMappingList.ClientAttribute.Platform:
return(this.items[index].Platform == parameters.Platform);
case ClientMappingList.ClientAttribute.Control:
return(this.items[index].Control == parameters.Control);
default:
return(false);
}
}
internal bool FindMatchingRange(string application, string platform, ClientControl control, UserAgentParser.UserAgentVersion minVersion, out int firstMatch, out int lastMatch)
{
firstMatch = 0;
lastMatch = this.Count - 1;
if (this.Count == 0)
{
return(false);
}
ClientMappingList.MatchingParameters parameters = new ClientMappingList.MatchingParameters(application, platform, control, minVersion);
for (ClientMappingList.ClientAttribute clientAttribute = ClientMappingList.ClientAttribute.First; clientAttribute < ClientMappingList.ClientAttribute.Last; clientAttribute++)
{
if (!this.MatchClientAttribute(ref firstMatch, ref lastMatch, clientAttribute, parameters))
{
return(false);
}
}
return(this.MatchClientMinimumVersion(firstMatch, ref lastMatch, parameters));
}
private bool FindFirstMatch(int first, ref int last, ClientMappingList.ClientAttribute attribute, ClientMappingList.MatchingParameters parameters)
{
int num = last;
int num2 = first;
first--;
last++;
while (last - first > 1)
{
int num3 = (first + last) / 2;
bool flag = false;
switch (attribute)
{
case ClientMappingList.ClientAttribute.First:
flag = (string.CompareOrdinal(this.items[num3].Application, parameters.Application) < 0);
break;
case ClientMappingList.ClientAttribute.Platform:
flag = (string.CompareOrdinal(this.items[num3].Platform, parameters.Platform) < 0);
break;
case ClientMappingList.ClientAttribute.Control:
flag = (this.items[num3].Control < parameters.Control);
break;
}
if (flag)
{
first = num3;
}
else
{
last = num3;
}
}
if (last == num + 1 || !this.IsMatch(last, attribute, parameters))
{
if (!this.AttemptWildcardSearch(num2, attribute, parameters))
{
return(false);
}
last = num2;
}
return(true);
}
private bool MatchClientAttribute(ref int start, ref int end, ClientMappingList.ClientAttribute attribute, ClientMappingList.MatchingParameters parameters)
{
ExTraceGlobals.FormsRegistryCallTracer.TraceDebug((long)this.GetHashCode(), "ClientMappingList.MatchClientAttribute attribute = {0}, application = {1}, platform = {2}, control = {3}, start = {4}, end = {5}", new object[]
{
(int)attribute,
parameters.Application,
parameters.Platform,
parameters.Control,
start,
end
});
if (start == end)
{
return(this.IsMatchOrWildcard(start, attribute, parameters));
}
int num = end;
if (!this.FindFirstMatch(start, ref num, attribute, parameters))
{
return(false);
}
start = num;
this.FindLastMatch(start, ref end, attribute, parameters);
return(true);
}
private bool AttemptWildcardSearch(int start, ClientMappingList.ClientAttribute attribute, ClientMappingList.MatchingParameters parameters)
{
ExTraceGlobals.FormsRegistryTracer.TraceDebug((long)this.GetHashCode(), "Attempting wildcard search");
switch (attribute)
{
case ClientMappingList.ClientAttribute.First:
if (this.items[start].Application.Length != 0)
{
return(false);
}
parameters.Application = string.Empty;
break;
case ClientMappingList.ClientAttribute.Platform:
if (this.items[start].Platform.Length != 0)
{
return(false);
}
parameters.Platform = string.Empty;
break;
case ClientMappingList.ClientAttribute.Control:
if (this.items[start].Control != ClientControl.None)
{
return(false);
}
parameters.Control = ClientControl.None;
break;
}
return(true);
}
private bool IsMatchOrWildcard(int index, ClientMappingList.ClientAttribute attribute, ClientMappingList.MatchingParameters parameters)
{
switch (attribute)
{
case ClientMappingList.ClientAttribute.First:
return(this.IsMatch(index, attribute, parameters) || this.items[index].Application.Length == 0);
case ClientMappingList.ClientAttribute.Platform:
return(this.IsMatch(index, attribute, parameters) || this.items[index].Platform.Length == 0);
case ClientMappingList.ClientAttribute.Control:
return(this.IsMatch(index, attribute, parameters) || this.items[index].Control == ClientControl.None);
default:
return(false);
}
}
private void FindLastMatch(int first, ref int last, ClientMappingList.ClientAttribute attribute, ClientMappingList.MatchingParameters parameters)
{
if (attribute == ClientMappingList.ClientAttribute.Control)
{
while (first <= last && this.items[first].Control == parameters.Control)
{
first++;
}
last = first - 1;
return;
}
first--;
last++;
while (last - first > 1)
{
int num = (first + last) / 2;
bool flag = false;
switch (attribute)
{
case ClientMappingList.ClientAttribute.First:
flag = (string.CompareOrdinal(this.items[num].Application, parameters.Application) > 0);
break;
case ClientMappingList.ClientAttribute.Platform:
flag = (string.CompareOrdinal(this.items[num].Platform, parameters.Platform) > 0);
break;
}
if (flag)
{
last = num;
}
else
{
first = num;
}
}
last = first;
}