The problem of leading spaces still exists in CF5, but using the CFCONTENT you can indeed fix that problem now. Just use it like this:

<CFCONTENT type="text/html" reset="YES">

That's why CF version GWebCache needs that tag enabled, otherwise clients that do not expect a leading space will assume there was an error. If the tag is disabled for security issues, there are some other workarounds for that problem but are not elegant. Wish Allaire/Macromedia put in some efforts in fixing that issue, it's been around for quite a while now. Haven't had the chance to try CF MX yet...

-- Mike

hey tshdos,
here is my own written hostcache:
www.uncertaindesign.com/ffsite/gnutella/lynn.asp

I just looked at your newest version (0.3). Looks good but I have a couple of suggestions for you.


Line 23:
If Request.Querystring("restart") = 1 Then StartASPEngine '//Change The Default Value


You should probably remove this or add a check for security.


Line 40-47:
If Request.Querystring("url") <> "" Then
UpdateHostCache
Status = "OK"
End If
If Request.Querystring("ip") <> "" Then
UpdateHostCache
Status = "OK"
End If


The way it is setup Request.QueryString("url") is checked up to 4 times and ip is checked up to 3 times. I would suggest changing the behavior of 'UpdateHostCache' to return the status and replace the lines above with:
Status = UpdateHostCache() ' Return "" if no update
Response.Write Status


Line 251-270:
Function IsValidIp


Should add a little more checking. The way it is right now if I sent the ip 0.0.0.0 or 255.255.255.255 or 999.999.999.999 it would pass even though it shouldn't.

Need to block these ips also: 10.*.*.*, 255.255.255.255, 172.16.*.* - 172.31.*.*, 0.0.0.0. ip range 192 should be changed to 192.168.*.*


I did this too but unless you can think of a reason, I see no reason to store the ip and port separately.

Also, just curious but why no locks?

Hi tshdos,
I said in the readme that you should change the
default values due security measures.

No locks,
yeah... I had some problems with it.
I still have no real idea what locks are good for.
during the stress test me iis froze.
then i killed the locks and it worked.

thanks,
paradog

It looks like the reason it froze up is because you have functions that exit without unlocking the application ie:

Function asdf
Application.Lock

If A ="" Then
' should be an application.unlock here
Exit Function
End If

...

Application.Unlock
End Function


The reason for the locks is to keep the counts correct.
An example would be if two clients hit the following line at the same time.
Application("count") = Application("count") + 1
If you assume Application("count") = 0 before they hit this line two things could happen. Either it will work fine and the count will
be 2 or when both clients get the value of count before adding one they both get the value 0 in which case both clients set the count to 1. Honestly if you are not going to get a lot of hits at the same time you don't really have to worry about this, but it doesn't hurt performance if done correctly. You only need to when updating really.

I did not notice the line said '// Change default values.
But you should probably set the default to something besides 1 since most of the other functions use a 1. Just some advice though.

Thanks,
I really appreciate your help.
Would you like to code Lynn with me together?

If you want you will get access to my ASP Server too.
(Great server: The premium package of www.maximumasp.com)

Do you have ICQ? My number is: 94543674

Sure I will help. I don't need access to your server though. I have a few servers already.

I don't currently have or use ICQ. I might download it later though.

Well, thats cool.
I will try to fix that lock problem,
I dont really know how to validate an ip?
What range do IPs have?
Is it always from 1 to 255?

I searched for tshdos on ICQ and I found one are
you Kevin?

Well it is ok if I add your name on that
temporary homepage of Lynn?

For the purposes used here, it is probably easier just to compare the left n chars of the ip against the chars of the ip.
Example:

Public Const IP_MASKS = "127|192.168|(...)"

For Each Mask In Split( IP_MASKS, "|" )
If Left( HostIP, Len( Mask ) ) = Mask ) Then
'block ip
...

IPs range from 0 to 255. I am not sure if it is possible to have a 0 as the first number in an ip but it is ok for the others. I also think 255 might be reserved but I will have to check on that.


Yes that is me. I have not used it in a year or so. I assumed they would delete it after a while.

I have no problem with that.

well see you then.
could you gimme your email address?
mine is guox@gmx.net