ADODB.Stream And BinaryWrite Problems.
I`m writing a little routine that captures the data from a form submit (ie a picture) and then at the back end the asp will saved it back out into a file on the server.
I can capture the file fine and display the binary data to the screen.. but now I`m trying to write the data back into a file on the server. After a bit of searching around on the net I found that most people where suggesting using the ADODB.Stream functions.
So this is what I've got but for some reason when I go to write the binary variable it complains. Code:
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In Windows 2000 IIS 5 SP3 this:
http://support.microsoft.com/?scid=kb;en-us;276488
is not working. No error but wants to save binary.asp to disk and can't. I have it in a High Isolation Application.
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It involves using ASP/VbScript and ADODB.Stream to read binary data from a *.DOC or *.RTF
file and then send it to the user with Response.ContentType and BinaryWrite.
Everything works fine until I try to Replace() certain strings in the *.RTF
file with my own data. I'm assuming Replace() is choking on the binary characters, or
incorrectly thinking 0x00 values are marking end of string. Code:
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After the latest security update, is it still possible to use adodb.stream
on the server side?
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We have an application, written in ASP, that uses the ADODB.Stream to be
able to open files and write byte arrays to the Response object. If one of
our administrators patches the web servers this application runs on in
Windows Update, I'm screwed, right? You've essentially just disabled this
COM object, for not only its evil purposes, but its useful ones?
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I am using ADODB.Stream for downloading the files on user machine. The code works fine when filesize is less than 10 MB. But if file size is more than 10 MB then it doesn;t get download. Can anyone tell what is the problem. I have to user some different component.
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I am trying to secure .pdf files by having users login and based on UserID, allow access to certaing .pdf's.
I have tried it a few different ways using different file types and their corresponding contenttype and nothing happens. I even used the same example from microsoft.com and I get "page cannot be displayed"....
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I'm trying to create a page that uploads a file. I get an error message saying ADODB object Stream is not available in my server. How do I upgrade my ADODB library?.
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I am using the code below to ensure that a download will be sent to the user as a save/open dialog box and not open up in the browser. However I get one of a few different issues.
1. Sometimes the when you click save the box just dissapears and you never get to choose where to save it. And then don't get the file!
2. If you get past the first problem (seems to be unique to pdf's) and can select where you want to save the file, it then doens't actually download the file and the box just dissapears again!
3. If you get past both of these, documents are often corrupt!
Any idea what could be causing these? The server has MDAC 2.8 installed, and it works slightly better on our local testing server Win2k than it does on the live Win2k server! All very odd! Code:
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I have an ASP page that downloads file with the ADODB.Stream object.
I've found that if the user click cancel in the "Save file as" window or
during the downloading, the download is no more available, the page hangs
over and and the session have to be closed. (In some cases you have to Cancel
more than one time the download process to rise up this error).
I've experienced this problem, as a user, with many major webmail services
too!
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I have an asp page that needs to display the string that is returned from a
cgi file.
As an example, if you enter http://mydomain.com/mycgi.cgi?98127398 in to a
browser, it will display YES or NO
I need to have my asp code query this url, get the resulting string, then
act upon it (basically use the answer to display a nice big tick or a big
cross). Code:
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When trying to load a file using ADODB.Stream, LoadFromFile method I get the following error:
Safety Settings on this computer prohibit accessing a data source on another computer
I'm running windows server 2003. I have the site security set to "Local Intranet"
Any Suggestions?
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I use the Stream method to serve certain file types to the user. If the
type is pdf, it opens in the browser fine. My problem is with those
that the browser doesn't have plug-ins such as ppt, word, etc. it
prompts to choose Open/Save/Cancel and defaults the filename to the ASP
page serving the content. ie. BinarySend.asp -> BinarySend.doc,
BinarySend.ppt.
If I use
Response.AddHeader "content-disposition", "attachment;filename=" &
sFileName then it defaults the filename to the name I specify but
always prompt a download instead of opening directly.
Is there another way to default the filename in situation like this?
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I wanna read binary data from database with ADODB.Stream object. So I wrote code..
---------
<%
query = "SELECT * FROM Categories"
adoDB.DefaultDatabase = "Northwind"
adoRs.Open query, adoDB, 1
Set rec = Server.CreateObject("ADODB.Record")
'read [Picture] column.
rec = adoRs(3)
------------
And the 'rec' TypeName() is 'Byte()'
But I can't get it to ADODB.Stream. How Can I do? Or Can I read binary column to another way?
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I use the code below to authorise the download of certain files.
Thus, instead of linking to the file in a wwwroot directory, I link to
this code with the filename as a parameter, and the script streams the
file if the user is authorised.
This has worked fine on PDFs, DOCs, XLS, etc. until today, and 18MB
file presents the error message 'format error: not a pdf or corrupt'.
Is there a file size limit, or a default that needs overridden? Any
thoughts? Code:
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it is possible to print binary content via response.BinaryWrite!
But is it possible to determine as a value?
(I get content from another site, they send to me wrong character because of the chracter coding.I want to get it as binary.I can already get, but I can't edit
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help me regarding the 'Response.BinaryWrite' I am making one web application where I need to store some of client logo's and others images. In this context I am able to store images into .DB file and even able to display into browser to. But it seems to be 'Response.BinaryWrite' does not support 'html/text' hearder if you user 'BinaryWrite'? I had tried many way to do so but its does not write binary if pages content <html><body> tag's.
I could had done it by uploading images into disk, which is quite simple method and faster too<img src"images/<%=filename%>.jpg/gif"> by having unique file name. But I am not the person who is going to monitor it as user itself has a persmission through the web to have there image as they want to give file name etc. Also I can't have individual directory for each users as if tomorrow users grow then what I suppose to do?
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I am using Response.BinaryWrite to write a PDF to the browser. Everything works great on IE and Safari but when I try to use Firefox the browser hangs. The title bar says application/pdf but nothing ever shows up. Going directly to the pdf works fine but unfortunately am unable to do that in the long run and must use BinaryWrite.
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I have a problem when trying to do response.binarywrite for files > 64kb. I am reading a blob data from the database, this blob data contains files. To read from database ADODB.Recordset is used. I am using the following code to write on to the browser:
Response.ContentType="application/vnd.ms-excel"
Response.BinaryWrite rs.fields(blob field)
This works fine when the blob data is < 64 kb but when this limit exceeds then an error is thrown. how I can go about and read files > 64 kb ? Is there a maximum limit on the size of the file that can be used with response.binarywrite?
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I have a commercial database written in access and I'm trying to display some images, jpegs, stored in the DB on web page. My code is as follows:
Response.ContentType = "image/jpeg"
sql = "SELECT PartImage FROM Parts WHERE ShortID='AAPTM01'"
Set rs = AMConn.execute(sql)
If not rs.eof Then
PicSize = rs("PartImage").ActualSize
if PicSize > 0 then
Response.BinaryWrite
rs("PartImage").GetChunk(rs("PartImage").ActualSize)
end if
End If
set rs = nothing
All i get on the page is the image not found icon with the red cross in IE.
What could possibly be going on?
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Been struggling over this issue for a long while. We store PDF's in our SQL Server database. And I do a BinaryWrite to display the PDF.
It works for me without issue, on FireFox, IE, and Opera! But we are receiving feedback that some users are receiving the file does not begin with %PDF message ....
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I'm having some problems with the Reponse.BinaryWrite, IE 6.0 and Adobe Reader 6.0. When I try to write a pdf-file to an IE browser with a Adobe Reader 6.0 installed then it just displays a blank page and the earth on the top rigth corner keeps turning like it haven't read the pdf-file (for 10+ minutes on a lan).
If I change the settings on the Adobe Reader 6.0 to not open in a browser, then it works fine. If I use Mozilla 1.4 then it opens fine as well.It works fine as well with Adobe Reader 5.1. The code looks like this:
[Some code that places the pdf-file in a byte array called vntStream]
Response.Clear
Response.ContentType = "Application/pdf"
Response.BinaryWrite = vntStream
Response.end
I have tried to place a Response.Flush after the BinaryWrite, but it just makes the Adobe plug-in say something like "document corupted".
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Here is a snippet of some code that writes/exports a Crystal Report to an I.E. Browser (this is on an intranet using ONLY I.E). Code:
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How can I output the Response.BinaryWrite content in an asp page that has
html tags inside?
I need to write the binary data to the client browser inside the html tags.
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I am using Response.BinaryWrite to display JPEG's to the browser. The
problem is that in IE, one particular JPEG is loading very slow. Normal
JPEG's take a few seconds, but this one sometimes takes up to 30 seconds.
THe weird thing is that if I refresh really quick, the JPEG appears for quick
second, and then the new Response.BinaryWrite kicks in. So, it looks like
the browser has the image, but for some reason it is not finishing loading it
into the browser. Code:
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when I upload images to a db, everything seems to work smoothly. But when I'm trying to view the page, it seems that there is sth wrong with images - all of them are cut at the bottom. The image size is correct, the filesize is ok, but the bottom part of the image is blank...
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I made a posting a while ago regarding doing a binarywrite of a large
file in chunks and got a lot of helpful responses. I was able to make
it work then. Unfortunately when the project is being tested its not
working and I am getting some weird results when testing. A month ago I
was able to stream a file of size 80Mb and it worked like a dream
Yesterday it would not work on the same file, but would stream smaller
files. The largest file i was able to stream yesterday was 55.5MB.
Today it wouldnot work with the 55.5MB file but only with a file of max
size of around 54.5MB. I can't seem to figure out what is causing this.
Because the code is the same. I actually get no error, with the file
size i mentioned i get a popup window within seconds for the file
download. But anything greater than that file size (max size as of
today 54.5) even if it is an MB more i get a blank screen but it never
pop ups the file download box Code:
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I am doing a binaryWrite to allow users to download files. The problem
occurs if the file is too big. Some of the files i have are close to
100 megs. I read on msdn that if the data is greater than 4MB it is
advisable to break it up into multiple chunks Code:
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I have a page which streams an Excel spreadsheet to the user. It has worked
fine for 12mths or more, but recently I found out that it wasn't working. I
suspect the problem lies with IIS, but I'm not sure...
When the user submits a form, the page should stream the file to the user -
the user is presented with a standard Open/Save/Cancel dialog, which the
would ordinarily save to their HDD. I have updoaded the code from the live
server to my development machine (IIS5.1) - and this same code works fine.
However, on the live server (IIS6), the user is presented with the dialog
box, but rather than listing myfile.xls, it lists mypage.asp as the file to
be downloaded.I think this must be an IIS6 issue but I don't know what. Some time before
the problem was noticed, work had been done on the live server, but AFAIK
nothing was done that was *intended* to affect this application.
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I'm using streams to upload a file. I get an error 800a0bbc write to file failed.
I've looked on support.microsoft.com and groups.google.com.
No luck on what a 800a0bbc error is.
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Does anyone know how to create an attachment using a stream in classic
ASP.I can see that it can be done in ASP.Net as per the article below:
Initializes a new instance of the Attachment class with the specified
stream and name.
http://msdn2.microsoft.com/en-us/library/6sdktyws.aspx.
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I'm using
file.OpenAsTextStream(ForReading, _
TristateUseDefault)
and then i read some lines.
Line = TextStream.readline
Then when i finished reading it i need to go to the begiining and read some
lines again.But i dont see how to go back to the begining.
I mean, Is there a way to go back to the first line of the file if i
allready read some lines
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Ok, I'm stumped on something that really shouldn't be this hard. I've
created some cool code to transform a dataset via XSLT into SpreadsheetML
(XML for Excel) and I'm storing the physical file on a file server. Now... I
currently provide a hyperlink to view/save the file, but this won't work
outside the network.
So, I've been working on making this
hyperlink/linkbutton/button/whatever stream the file back to the user. How
in the name of Zeus's butthole do I do this?
So, in simpler terms; how do I take a physical file and stream the sucker
back? Ideally, I'd like this to work just like it does now with the physical
link to the file. Click the link, it prompts you to save/open/cancel.
Clicking Open pops up Excel and looky-looky, you see the file.
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