BorlandTalk.com

Red · Guest

Situation:

D7, 3T C/S Application, IB 6.0.2.0
Database and Application working good.

Requirement:

My application "manages" about 150,000 files. These are stored on a
file server. My app uses the 3T C/S app to "look up" the file name it
needs to upload, download or delete, then my client uses CopyFile()
(complete with the \server_ip_addressfoldername filename prefixes)
to do the actual upload or download or delete directly from the client
PC to the file server PC, (bypassing the appserver) which means the
file server PC must have a folder structure and permissions on those
folders that allow all individual users to read, write, and delete the
files. If the user were to know the IP address of the file server he
could access the files directly, which is no problem, because the user
has full access to those files anyway. The entire 3T C/S app is just
for assissting with the "lookup" chore.

Danger:

User could, out of curiosity, explore the folders directly (no danger)
and then could accidentally select all files and hit the delete key
(pain in the asterisk to restore).

Safety measure:

Set the permissions on the folders on the file server machine to allow
only the app server machine to do deletes (or even copies for that
matter)

My question:

In order to allow the app server to perform the upload or download of
a file, I could write a method in my TRemoteDataModule that would have
a CopyFile() in it that would work just like the one currently in my
client .exe. However, I have discovered that in order to do this, I
would need the true IP address of the client PC.

My problem:

I have also discovered that obtaining the IP address of my local PC is
more difficult than I thought.

a) It's not readily available in a system variable (that I can find
anyway)

b) Even if I could find it, it might not be the same IP address that
the app server "sees" my client PC as.

I've read that a setup using Indy components could give me the IP
address I'm after, but, I'm kind of leary about putting an indy server
in my TRemoteDataModule because I don't know how it will interfere
with the components that are already there (TProviders, TSQLQueries).
I'm a newby at Indy and all the indy components seem to all be built
for a whole different approach than using TRemoteDataModules. (Indy
would use a web server. It seems way way overkill to build an entire
app within an app just to get an IP address)

Anyone got any suggestions on a simple way to get the correct IP
address of a client machine when it's talking to a TRemoteDataModule?

Kev.

Patrick · Guest

I have this scenario, and I have the client copy the file to an 'open'
folder and then have the appserver (with it's account) move it to the
destination folder. Upon success the client deletes the source file.

Bill Todd · Guest

I can not help with getting the IP address but if you want to copy files
through the AppServer interface see
http://bdn.borland.com/article/0,1410,25982,00.html

--
Bill Todd (TeamB)
TeamB cannot answer questions received via email

TOndrej · Guest