Have you done this with __PDF__ files stored in __MSSQL__? If so, how are you loading the files into the db?
There is more to this issue than just how to set the HTTP header for display of pdf files. I can read the file contents and display as a pdf; it's the database piece that causes a problem. I suspect Bengt is running into the same issues. Thanks. j > -----Original Message----- > From: Bill Conlon [mailto:[EMAIL PROTECTED] > Sent: Wednesday, September 17, 2003 2:41 PM > To: [EMAIL PROTECTED] > Subject: RE: Witango-Talk: PDF stored in db? > > > Here's what works for me: > > 1. Query my db (three tables for mime type, media meta data, and the > media data itself -- but you could put this into one table) > > 2. Set up the request scope variables > <@ROWS> > <@ASSIGN NAME="type" SCOPE="request" VALUE=<@COLUMN > "mime.type">> <@ASSIGN NAME="date" SCOPE="request" VALUE=<@COLUMN > "media_description.date_modified">> > <@ASSIGN NAME="size" SCOPE="request" VALUE=<@COLUMN > "media.size">> <@ASSIGN NAME="filename" SCOPE="request" > VALUE=<@COLUMN "media.filename">> <@ASSIGN NAME="file" > SCOPE="request" VALUE=<@COLUMN "media.data">> </@ROWS> > > 3. Set up the HTTP header > <@PURGERESULTS><@assign name="encodeResults" scope="request" > value="false"><@ASSIGN NAME="httpHeader" SCOPE="request" > encoding="none" > VALUE="HTTP/1.1 200 OK<@CRLF>Server: Apache > 2.0.046<@CRLF>Accept-Ranges: > bytes<@CRLF>Content-Type: @@request$type<@CRLF>Content-Disposition: > inline; filename=@@request$filename<@CRLF>Last-Modified: <@VAR > NAME="date" scope="request" format="datetime"><@CRLF>Content-Length: > @@request$size<@CRLF><@CRLF>"><@VAR NAME="file" SCOPE="request" > ENCODING="none"> > > >Hiya Bengt! > > > >1. Check the binary data in your blob against your original > file. How > >are you putting the PDF in? > > > >2. Check the pdf binary data that is displayed against the > binary data > >in the original. > > > >I've still not gotten this to work properly, due to a null character > >used in the PDF format. That characters always truncated the data > >either at upload or at read; I haven't found a workaround > yet. Other > >folks said they had gotten it working, but they were either > doing image > >files rather than PDF, or were not on MSSQL. (I had to drop > the issue > >when I hadn't managed to resolve it after several days.) > > > >If you can give me more info about how your process works, I'll pull > >the pertinent info I've collected and forward it. > > > >Good luck! > >jamileh > > > > > >> -----Original Message----- > >> From: Bengt Bredin [mailto:[EMAIL PROTECTED] > >> Sent: Wednesday, September 17, 2003 9:28 AM > >> To: [EMAIL PROTECTED] > >> Subject: SV: Witango-Talk: PDF stored in db? > >> > >> > >> > >> Hi all ! > >> > >> I have tried out this example from Troy and Scott but can't > >> get it to work. It's probably some misunderstanding from me, > >> but I try to get some help anyway. So I pull out my blob, a > >> pdf file from the db (MSSQL) and use just a test taf to do this: > >> > >> <@ASSIGN NAME="filedata" SCOPE="Local" > >> VALUE="@@request$resultset[1,data]"> > >> > >> <@EXCLUDE> > >> <@ASSIGN NAME=ENCODERESULTS VALUE=FALSE SCOPE=LOCAL> <@ASSIGN > >> NAME=HttpHeader SCOPE=LOCAL > >> VALUE="Content-type: application/pdf<@CRLF><@SETCOOKIES><@CRLF>"> > >> </@EXCLUDE><@var request$filedata ENCODING=NONE> > >> > >> Now I would like Adobe reader to start inside my browser and > >> show me the pdf, but instead I get: Client Error The > >> response received from the application server is invalid. On > >> some occasions it shows the pdf binary data instead. > >> > >> Hope for better knowledge after San Diego trip > >> Cheers... > >> Bengt Bredin, [EMAIL PROTECTED] > >> Sweden > >> > >> > >> > >> > >> Great work Troy, > >> > >> Something to add, that I discovered the hard way, is that > >> some versions of the Adobe Plug-in for PDF may not initialize > >> properly because the plug-in needs to know the size of the > >> document before hand. > >> > >> So you might want to add "Content-Length:" to the HTTP > >> Response header, something like: > >> > >> <@ASSIGN NAME=ENCODERESULTS VALUE=FALSE SCOPE=LOCAL> <@ASSIGN > >> NAME=HttpHeader SCOPE=LOCAL VALUE="Content-type: > >> application/pdf<@CRLF>Content-Length: <@LENGTH STR='<@COLUMN > >> <@DQ>articles.art_blob<@DQ> > >> ENCODING=NONE>'><@CRLF><@SETCOOKIES><@CRLF>"><@COLUMN > >> "articles.art_blob" > >> ENCODING=NONE> > >> > >> Of course it might be more efficent to capture the <@LENGTH> > >> on the upload and store it a separate field next to the > PDF content. > >> > >> Hope this helps. Cheers.... > >> > >> Scott Cadillac, > >> Witango.org - http://witango.org > >> 403-281-6090 - [EMAIL PROTECTED] > >> -- > >> Information for the Witango Developer Community > >> --------------------- > >> > >> XML-Extranet - http://xmlx.ca > >> 403-281-6090 - [EMAIL PROTECTED] > >> -- > >> Well-formed Development (for hire) > >> --------------------- > >> > >> > >> > -----Original Message----- > >> > From: Troy Sosamon [mailto:[EMAIL PROTECTED] > >> > Sent: Wednesday, September 03, 2003 10:59 AM > >> > To: [EMAIL PROTECTED] > >> > Subject: RE: Witango-Talk: PDF stored in db? > >> > > >> > > >> > Here is the trickey part that you need. > >> > Use a javascrip and open a new window and call a search > action that > >> > returns a blob and use this code: > >> > > >> > <@EXCLUDE> > >> > <@ASSIGN NAME=ENCODERESULTS VALUE=FALSE SCOPE=LOCAL> <@ASSIGN > >> > NAME=HttpHeader SCOPE=LOCAL > >> > VALUE="Content-type: > >> > application/pdf<@CRLF><@SETCOOKIES><@CRLF>"> > >> > </@EXCLUDE><@COLUMN "articles.art_blob" ENCODING=NONE> > >> > > >> > > >> > <@comment>other content types-- VALUE="Content-type: image/jpeg, > >> > text/html </@comment> > >> > > >> > > >> > Troy > >> > > >> > > >> > -----Original Message----- > >> > From: Troy Sosamon [mailto:[EMAIL PROTECTED] > >> > Sent: Wednesday, September 03, 2003 10:32 AM > >> > To: [EMAIL PROTECTED] > >> > Subject: RE: Witango-Talk: PDF stored in db? > >> > > >> > > >> > I have done it using R:tango, IIS5 and W2k. R:tango is > Tango2000 > >> > and an R:base database. > >> > > >> > I am not sure about how your DB handles the blobs, but > to load the > >> > files, I upload the the file to a temp file on the > server and then > >> > do a directdbms > >> > command to put the file into the database. > >> > Pulling the pdf out if you write it to a temp file on the > >> > server and link to > >> > that file it is very easy. > >> > It is a little trickier, but can be done where you pull the > >> > file and send it > >> > directly to the browser w/o needing to put it in a file on > >> the server. > >> > > >> > Troy Sosamon > >> > Denver, Co. > >> > > >> > > >> > -----Original Message----- > >> > From: Wilcox, Jamileh (HSC) [mailto:[EMAIL PROTECTED] > >> > Sent: Wednesday, September 03, 2003 10:08 AM > >> > To: [EMAIL PROTECTED] > >> > Subject: Witango-Talk: PDF stored in db? > >> > > >> > > >> > Tango2000, W2K server, IIS5, SQL2K > >> > > >> > I'm building an application to search and display lots of PDF > >> > files. My preference would be to store the files in the > database, > >> > rather than try > >> > to organize and keep track of all the separate files. Does > >> > anyone know > >> > if this method will work with PDF files? If so, has > anyone done a > >> > similar app? I'm having problems getting the files loaded & > >> > displayed - > >> > I'm not sure if I'm doing it wrong, or if it's just not > >> going to work. > >> > > >> > Thanks for any suggestions! > >> > > >> > jamileh > >> > > >> > > >> > ______________________________________________________________ > >> > __________ > >> > TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf > >> > > >> > ______________________________________________________________ > >> > __________ > >> > TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf > >> > > >> > ______________________________________________________________ > >> > __________ > >> > TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf > >> > > >> > >> ______________________________________________________________ > >> __________ > >> TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf > >> > >> ______________________________________________________________ > >> __________ > >> TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf > >> > >_____________________________________________________________ > __________ > >_ > >TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf > > > > > Bill Conlon > > To the Point > 345 California Avenue Suite 2 > Palo Alto, CA 94306 > > office: 650.327.2175 > fax: 650.329.8335 > mobile: 650.906.9929 > e-mail: mailto:[EMAIL PROTECTED] > web: http://www.tothept.com > > > ______________________________________________________________ > __________ > TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf > ________________________________________________________________________ TO UNSUBSCRIBE: Go to http://www.witango.com/maillist.taf
