Hi.
I have a folder that contains a lot of different documents. xls, .doc, .pdf
etc. Different users have access to different documents. The problem is
that if a user knows the name of a document then he can just write the path
into IE and get access to it anyway. Is it possible to prevent this?
Thanks,
Shawn 7 1467
Shawn,
If it's required that people be able to download these (which I'm sure it
is), your best bet is to store them on the file system where they are
inaccessible directly. You can then use Response.Binary Write to stream
them down to the browser when legitimate.
Here's a small code sample that demonstrates a PDF file loaded both inline
and outside fo the browser.
Dim fs As New FileStream("c:\ directory\books .pdf"),
FileMode.OpenOr Create, FileAccess.Read )
Dim MyData(fs.Lengt h) As Byte
fs.Read(MyData, 0, fs.Length)
Response.Buffer = True
Response.Clear( )
Response.Conten tType = "applicatio n/pdf"
' Opens it outside browser
Response.AddHea der("content-disposition", "attachment ;
filename=books. pdf")
' Opens it inside browser
'Response.AddHe ader("content-disposition", "inline;
filename=books. pdf")
Response.Binary Write(MyData)
Response.End()
Hope that helps.
Jim Cheshire, MCSE, MCSD [MSFT]
Developer Support
ASP.NET ja******@online .microsoft.com
This post is provided as-is with no warranties and confers no rights.
-------------------- From: "Shawn" <bo********@hot mail.com> Subject: Protecting documents Date: Fri, 21 Nov 2003 13:20:58 +0100 Lines: 10 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Message-ID: <OH************ **@TK2MSFTNGP10 .phx.gbl> Newsgroups: microsoft.publi c.dotnet.framew ork.aspnet NNTP-Posting-Host: pc3.akermaritim e.no 193.161.152.243 Path:
cpmsftngxa07.ph x.gbl!cpmsftngx a10.phx.gbl!cpm sftngxa06.phx.g bl!TK2MSFTNGP08 .
phx.gbl!TK2MSFT NGP10.phx.gblXref: cpmsftngxa07.ph x.gbl microsoft.publi c.dotnet.framew ork.aspnet:1918 17 X-Tomcat-NG: microsoft.publi c.dotnet.framew ork.aspnet
Hi. I have a folder that contains a lot of different documents. xls, .doc, .pdf etc. Different users have access to different documents. The problem is that if a user knows the name of a document then he can just write the path into IE and get access to it anyway. Is it possible to prevent this?
Thanks, Shawn
Shawn,
If you set the column to visible="false" you will still be able to access it
in the code-behind. If you need to access its value from the client, then
you are correct you can't set visible="false" .
If the latter is the case (you need to access the value from the client
code) you could try using <div> tags around it and setting it's visibility
with CSS.
--
Sincerely,
S. Justin Gengo, MCP
Web Developer / Programmer
Free code library at: www.aboutfortunate.com
"Out of chaos comes order."
Nietzche
"Shawn" <bo********@hot mail.com> wrote in message
news:OH******** ******@TK2MSFTN GP10.phx.gbl... Hi. I have a folder that contains a lot of different documents. xls, .doc,
..pdf etc. Different users have access to different documents. The problem is that if a user knows the name of a document then he can just write the
path into IE and get access to it anyway. Is it possible to prevent this?
Thanks, Shawn
Shawn,
Sorry.
I was attempting to post to the message above yours.
--
Sincerely,
S. Justin Gengo, MCP
Web Developer / Programmer
Free code library at: www.aboutfortunate.com
"Out of chaos comes order."
Nietzche
"S. Justin Gengo" <sj*****@aboutf ortunate.com> wrote in message
news:eW******** *****@tk2msftng p13.phx.gbl... Shawn,
If you set the column to visible="false" you will still be able to access
it in the code-behind. If you need to access its value from the client, then you are correct you can't set visible="false" .
If the latter is the case (you need to access the value from the client code) you could try using <div> tags around it and setting it's visibility with CSS.
-- Sincerely,
S. Justin Gengo, MCP Web Developer / Programmer
Free code library at: www.aboutfortunate.com
"Out of chaos comes order." Nietzche
"Shawn" <bo********@hot mail.com> wrote in message news:OH******** ******@TK2MSFTN GP10.phx.gbl... Hi. I have a folder that contains a lot of different documents. xls, .doc, .pdf etc. Different users have access to different documents. The problem
is that if a user knows the name of a document then he can just write the path into IE and get access to it anyway. Is it possible to prevent this?
Thanks, Shawn
Didn't quite understand what column visibility had to do with protecting
document folders :-)
"S. Justin Gengo" <sj*****@aboutf ortunate.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..
Shawn,
Sorry.
I was attempting to post to the message above yours.
--
Sincerely,
S. Justin Gengo, MCP
Web Developer / Programmer
Free code library at: www.aboutfortunate.com
"Out of chaos comes order."
Nietzche
"S. Justin Gengo" <sj*****@aboutf ortunate.com> wrote in message
news:eW******** *****@tk2msftng p13.phx.gbl... Shawn,
If you set the column to visible="false" you will still be able to access
it in the code-behind. If you need to access its value from the client, then you are correct you can't set visible="false" .
If the latter is the case (you need to access the value from the client code) you could try using <div> tags around it and setting it's visibility with CSS.
-- Sincerely,
S. Justin Gengo, MCP Web Developer / Programmer
Free code library at: www.aboutfortunate.com
"Out of chaos comes order." Nietzche
"Shawn" <bo********@hot mail.com> wrote in message news:OH******** ******@TK2MSFTN GP10.phx.gbl... Hi. I have a folder that contains a lot of different documents. xls, .doc, .pdf etc. Different users have access to different documents. The problem
is that if a user knows the name of a document then he can just write the path into IE and get access to it anyway. Is it possible to prevent this?
Thanks, Shawn
Joao,
That will work as long as the file type you are requesting is mapped to the
aspnet_isapi.dl l. It's not recommended to map all of these file types to
ASP.NET.
Jim Cheshire, MCSE, MCSD [MSFT]
Developer Support
ASP.NET ja******@online .microsoft.com
This post is provided as-is with no warranties and confers no rights.
-------------------- From: "Joao S Cardoso [MVP]" <jj***@acinet.p t.n-o.s-p.a-m> Subject: Re: Protecting documents Date: Fri, 21 Nov 2003 16:26:46 +0000 Message-ID: <t2************ *************** *****@4ax.com> References: <OH************ **@TK2MSFTNGP10 .phx.gbl> X-Newsreader: Forte Agent 1.93/32.576 English (American) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Newsgroups: microsoft.publi c.dotnet.framew ork.aspnet NNTP-Posting-Host: 213.13.118.94 Lines: 1 Path:
cpmsftngxa07.ph x.gbl!cpmsftngx a10.phx.gbl!TK2 MSFTNGXA05.phx. gbl!TK2MSFTNGP0 8
..phx.gbl!TK2MS FTNGP11.phx.gblXref: cpmsftngxa07.ph x.gbl microsoft.publi c.dotnet.framew ork.aspnet:1919 04 X-Tomcat-NG: microsoft.publi c.dotnet.framew ork.aspnet
You can do this 2 ways.
One, Jim's way.
The other is to srode diffrent file types in diffrent folders and then
configurediferent web.config files with the user's on each folder.
Joao Cardoso (MVP dotNET) ============== =============== =============== =========== [LusoCoders]- http://groups.yahoo.com/group/lusocoders/ [PontoNetPT]- http://www.programando.net/regras.aspx jj***@acinet.p t.n.o-s.p-a.m - www.acinet.pt ============== =============== =============== ===========
>Joao, That will work as long as the file type you are requesting is mapped to the aspnet_isapi.d ll. It's not recommended to map all of these file types to ASP.NET.
Hi... ur right...
I just remember something... if he is using windows authentication perhaps is as
easy as changing the security settings for diffrent folders....
But still your way seems that will be the best for this scenario.
Joao Cardoso (MVP dotNET)
=============== =============== =============== ==========
[LusoCoders]- http://groups.yahoo.com/group/lusocoders/
[PontoNetPT]- http://www.programando.net/regras.aspx jj***@acinet.pt.n.o-s.p-a.m - www.acinet.pt
=============== =============== =============== ========== This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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