PLEASE expand upon #3. Where *exactly* should this separately loaded
cross
domain file be, what *exactly* should it contain, how and when
*exactly*
should it be loaded? Please post an example here (and not
possibly breakable
link to Cynergy), ok? You will be doing a lot of
people a HUGE
favor!
--- In [EMAIL PROTECTED]ups.com,
"Theodore E Patrick" <[EMAIL PROTECTED]> wrote:
>
> Just to add to
Carson's post:
>
> There is a HTTP header corruption bug in Flash
Player 8 Release and
> 8.5.0.133 players that will cause Upload and
Download functionality
to be
> limited. This bug has been fixed within
8.5.0.175 player.
>
> Here is what doesn't work seamlessly:
>
> 1. HTTP AUTH - Authorization Headers will corrupt data exchange. If
you
> upload to an application running within an authorized HTTP
session,
in some
> browsers the upload will fail. I have seen this
occur in Safari(OSX) and
> FireFox(Win32).
>
> 2. POST
Parameters will corrupt data exchange on an Upload request.
This is
>
specific to FireFox(Win32) when additional HTTP POST parameters
are
added
> into a request. I have seen this occur in Safari(OSX)
and
FireFox(Win32).
>
> 3. HTTPS/SSL usage with
FileReference requires a separate loading of a
> crossdomain policy file
for use within the same domain.
>
> The FileReference functionality
in FireFox(Win32) does not use the
FireFox
> browser to exchange data,
instead it uses native Win32 networking. I
believe
> that many of the
errors in Firefox are a result of upload and download
> requests traveling
through win32 networking. When using Authorization
> headers, you will see
the Internet Explorer Authorization Security
Dialog
> appear in
addition to the Firefox Authorization Security Dialog. The
problem
> is
that authorization headers are not shared between Firefox and Win32
>
Networking. Although you may have Auth session headers in Firefox,
when
you
> use upload/download, the header data is lost.
>
>
Ideally I have found that it is best to use very simple upload logic for
>
compatibility. I typically use URLRewriting to add parameters into the
>
upload url path without the use of GET/POST parameters. I upload to a
>
separate HTTP/HTTPS subdomain and pass a unique token within the upload
>
request url like so:
>
> http://upload.myserver.com/upload/29879827342342342
>
> The upload application saves the upload file data if the
token
exists and
> expires the token when an upload occurs or within 10
minutes. This
> methodology seems to work compatibly for all existing
browsers and
can be
> adapted to any security model.
>
>
On the download requests URLRewriting is also very handy. To make
sure
the
> filename is returned consistently, I append the name into a
URLRewritten
> request like so:
>
> http://upload.myserver.com/upload/2020938409987234/myFile.pdf
>
> In this case, 2020938409987234 is used to obtain a file but the
name
makes
> sure that the user will always be presented with
'myFile.pdf' within the
> FileReference SaveAs Dialog. I have seen several
cases where the
> defaultFileName argument on the download method will
fail when POST
or GET
> Parameters are in use. If you call download
with the above URL, the name
> will be myFile.pdf consistently.
>
> Please understand that these solutions are not ideal but they
work
well and
> I have yet to find a case that could not be adapted
into an application.
>
> My 2 Cents,
>
> Ted
Patrick
> Cynergy Systems, Inc.
> http://www.cynergysystems.com
>
>
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED]ups.com
[mailto:[EMAIL PROTECTED]ups.com]
On
> > Behalf Of Carson Hager
> > Sent: Wednesday, January 11,
2006 7:47 PM
> > To: [EMAIL PROTECTED]ups.com
>
> Subject: RE: [flexcoders] FileReference Download
> >
> >
You cannot. In my opinion, this functionality is seriously limited in
>
> this regard. You also can't add anything to the multipartrequest
form
> > for uploads. You have to append to the URL. Your best bet is
to
use an
> > httpservice or webservice that preallocates the row in
the database
> > returning the key to your Flex app. You can then use
that key in
the URL
> > of your upload to tell your server script
what row to place the
data in.
> >
> >
> >
Carson
> >
> >
> >
____________________________________________
> >
> > Carson Hager
> > Cynergy Systems, Inc.
> > http://www.cynergysystems.com
>
>
> > Email: carson.hager@...
> > Office:
866-CYNERGY
> > Mobile: 1.703.489.6466
> >
> >
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED]ups.com
[mailto:[EMAIL PROTECTED]ups.com]
On
> > Behalf Of Oscar.Cortes@...
> > Sent: Wednesday,
January 11, 2006 6:33 AM
> > To: [EMAIL PROTECTED]ups.com
>
> Subject: RE: [flexcoders] FileReference Download
> >
> >
We want to use this functionality to save a document in the server
> >
along
> > with some indexing information. Using the Flash sample we
were able to
> > do
> > that using a ColdFusion page. However,
we need to get back a id
assigned
> > at
> > the time we
indexed the uploaded document. How can we send this
back to
> >
Flex, if the ColdFusion page is being called by
the
FileReferece.upload
> > method which only returns true or
false?
> >
> >
> >
> >
> >
|---------+--------------------------------->
>
> | | |
> > | | "Carson Hager" |
> > | |
<carson.hager@...|
> > | | m> |
> > | | Sent by:
|
> > | | [EMAIL PROTECTED]ups.com
|
> > | | 01/06/2006 04:09 PM |
> > | | Please respond to
flexcoders |
> > | | |
> >
|---------+--------------------------------->
>
>
>
>
>----------------------------------------------------------
>
>
------------------------------------------------------|
>
> |
> > |
> > | To: [EMAIL PROTECTED]ups.com
>
> |
> > | cc:
> > |
> > | Subject: RE:
[flexcoders] FileReference Download
> > |
> >
>
>
>----------------------------------------------------------
>
>
------------------------------------------------------|
>
>
> >
> >
> >
> > Just provide a URL
that calls a JSP?Servlet that streams the file
back.
> > That's how
we've done it.
> >
> >
> > Carson
> >
> >
> >
____________________________________________
> >
> > Carson Hager
> > Cynergy Systems, Inc.
> > http://www.cynergysystems.com
>
>
> > Email: carson.hager@...
> > Office:
866-CYNERGY
> > Mobile: 1.703.489.6466
> >
> >
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED]ups.com
[mailto:[EMAIL PROTECTED]ups.com]
On
> > Behalf Of j_sports
> > Sent: Friday, January 06, 2006
12:48 PM
> > To: [EMAIL PROTECTED]ups.com
>
> Subject: [flexcoders] FileReference Download
> >
> > I
am trying to utilize the Flash 8 FileIO.swf available for use within
>
> Flex 1.5. I can successfully download a file from a remote url
where
> > a file is being stored on disk, but I wish to load a file
being stored
> > as a blob in the database. It seems silly to extract
the file from
> > the database, write it temperarily to disk and then
initiate the flash
> > download. Is there a way to make the file
available for download
> > without first writing it to the servers file
system? I would be using
> > java for any backend work required and am
currently using a servlet
> > with the apache commons fileUpload 1.1
jar to do file uploads.
> >
> > The flash 8 documentation
indicates that the download signature is as
> > follows:
> >
> > public download(url:String, [defaultFileName:String]) :
Boolean
> >
> > Which leads me to believe there is no
alternative.
> >
> >
> >
> >
>
>
> >
> > --
> > Flexcoders Mailing List
>
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>
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> >
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> >
> >
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> >
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>
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> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
> >
>
>
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