Just a note, I have found you have to be careful with 1.1 in the header. That is stating to the browser that you are completely 1.1 complient and may cause the browser to negotiate a CONTINUE 100 type of connection, which will screw things up. Not all browsers will do this. I have found it safest to stick with 1.0 in these situations, unless you are sure that it will work with any size jpeg and all browsers.
-- Robert Garcia BigHead Technology 15520 Coutelenc Rd Magalia, Ca 95954 ph: 530.645.4040 x222 fax: 530.645.4040 rgar...@bighead.net - http://bighead.net/ Sent with Sparrow On Tuesday, March 29, 2011 at 4:18 PM, Robert Shubert wrote: > I think you said that you were going through IIS. Here's a httpHeader > assignment that I copied right out of a working TAF: > > <@ASSIGN httpHeader VALUE="HTTP/1.1 200 OK<@crlf>MIME-Version: > 1.0<@crlf>Content-Type: image/jpeg<@CRLF>Content-Disposition: attachment; > filename=image.jpg<@CRLF><@CRLF>">@@jpgData > > (all on one line) > > Note a few differences: > > My HTTP is 1.1 vs. your 1.0 > The Content-Type is "image/jpeg" vs. your application/jpg > I don't use the <@USERREFERENCECOOKIE> > I placed 2 <@CRLF>s at the end of the assignment > I don't worry about the Content-Length header, IIS adds it > > Start with this, it should get you working (worked for me) and then go from > there. > > Robert > > -----Original Message----- > From: WebDude [mailto:webd...@cipromo.com] > Sent: Tuesday, March 29, 2011 5:55 PM > To: Witango-Talk@witango.com > Subject: RE: Witango-Talk: Forcing jpg Download > > I appreciate the help so far. I feel I am 95% there. > > I have tried this with these 2 header rewrites (all on one line, of > course)... > > <@purgeresults><@ASSIGN local$httpHeader VALUE="HTTP/1.0 200 > OK<@crlf>MIME-Version: 1.0<@crlf>Content-Type: > application/jpg<@CRLF>Content-Disposition: attachment; filename=<@VAR > filename><@CRLF><@USERREFERENCECOOKIE><@CRLF>"><@VAR FileData scope="local"> > > > > > <@assign name="httpHeader" scope="local" value="HTTP/1.0 200 > OK<@crlf>MIME-Version: 1.0<@crlf>Content-type: > application/jpg<@crlf>Content-Disposition: attachment; filename=<@VAR > filename><@crlf>Content-Length: <@VARINFO NAME="FileData" > size><@crlf><@crlf>"><@purgeresults><@VAR FileData scope="local"> > > I am assigning the filename from a search and writing the data to FileData > > It actually finds the filename and downloads the file. The problem is that > the file seems to be corrupt. It will not display in a browser and when I > try to open it in PhotoShop I get the following error (I tried this in > multiple browsers).... > > "Could not open the document because a JPEG marker segment length is too > short (the file may be truncated or incomplete). > > Is there something else I may be missing? > > I appreciate the help! > > > > > -----Original Message----- > From: Robert Shubert [mailto:rshub...@tronics.com] > Sent: Tuesday, March 29, 2011 1:57 PM > To: Witango-Talk@witango.com > Subject: RE: Witango-Talk: Forcing jpg Download > > Yes - you have that correct. > > -----Original Message----- > From: WebDude [mailto:webd...@cipromo.com] > Sent: Tuesday, March 29, 2011 2:58 PM > To: Witango-Talk@witango.com > Subject: RE: Witango-Talk: Forcing jpg Download > > What do you mean by "Then you dump out the contents of the jpeg AFTER the > header." Do I read the jpg using the Read File Action as in what the other > Robert suggested? Is that what the <@VAR Request$FileData> is? > > Mmmmm... I'll give it a shot... > > > > > -----Original Message----- > From: Robert Garcia [mailto:rgar...@bighead.net] > Sent: Tuesday, March 29, 2011 1:28 PM > To: Witango-Talk@witango.com > Cc: Robert Shubert > Subject: Re: Witango-Talk: Forcing jpg Download > > We have done that many times before in witango. That is the correct header > you need to use, and attachment is the correct way. However, it looks like > you are trying to put the contents of the file in the filename part, that > header just takes the filename, and it should end in JPG or JPEG, or match > the mime of the content with the extension, or it may not work on all > browsers. Then you dump out the contents of the jpeg AFTER the header. Here > is an example I found from a TAF that I know we had working: > > <@assign name="httpHeader" scope="request" value="HTTP/1.0 200 > OK<@crlf>MIME-Version: 1.0<@crlf>Content-type: > application/download<@crlf>Content-Disposition: attachment; > filename=downloadreport.xls<@crlf>Content-Length: <@length > @@request$FileData><@crlf><@crlf>"><@purgeresults><@VAR Request$FileData> > > It is important to know that you must NOT have ANY returns in this results > page where you use this code, it should be on one line. We do this in other > places with JPEGs, but we use image/jpeg for content-type, and a variable > usually for filename. Content-length is also important, but can be a big > buggy in witango. > > On 3/29/2011 11:09 AM, Robert Shubert wrote: > > In that case, I think you have the header correct. What you need to do > > afterwards is use a Read File Action to bring the content of the JPEG > > into Witango and then simply display it as the response. It's > > important that you don't get any additional characters (like extra > > returns or spaces in the result) > > > > Robert > > > > -----Original Message----- > > From: WebDude [mailto:webd...@cipromo.com] > > Sent: Tuesday, March 29, 2011 1:49 PM > > To: Witango-Talk@witango.com > > Subject: RE: Witango-Talk: Forcing jpg Download > > > > <@COLUMN "images.LargerImage"> is the name of the file. > > > > > > > > > > -----Original Message----- > > From: Robert Shubert [mailto:rshub...@tronics.com] > > Sent: Tuesday, March 29, 2011 12:06 PM > > To: Witango-Talk@witango.com > > Subject: RE: Witango-Talk: Forcing jpg Download > > > > What is in the database column<@COLUMN "images.LargerImage">? Is this > > the name of the image file or the binary JPEG data? > > > > Robert > > > > -----Original Message----- > > From: WebDude [mailto:webd...@cipromo.com] > > Sent: Tuesday, March 29, 2011 12:45 PM > > To: Witango-Talk@witango.com > > Subject: Witango-Talk: Forcing jpg Download > > > > PHP has a handy header rewrite for forcing a jpg download. I was > > wondering if anyone has ever done this in Witango. I've been able to > > get this to work on IIS by changing the directory header, the problem > > being is that I have 2 sites that reference the same images and one > > needs to force a download and the other to view the image in a browser > > (same images in the same directories). > > > > I've been dabbling but can't seem to get it to work right. Of course > > when I add header change to the top of the taf file, it tries to > > download the taf file itself rather then the jpg file. This is stupid > > I know, but what is the best way to force a download of a jpg and get > > it to work? This is what I have so far. Am I missing something > > fundamental > in trying to do this? > > > > <@purgeresults><@ASSIGN local$httpHeader > > VALUE="Content-Type:application/jpg<@CRLF>Content-Disposition: > > attachment, filename='<@COLUMN > > "images.LargerImage">'<@CRLF>readfile('<@COLUMN > > "images.LargerImage">')<@CRLF><@USERREFERENCECOOKIE><@CRLF>"> > > > > Thanks for your thoughts... > > > > > > > > WebDude > > > > > > > > > > ---------------------------------------- > > > > To unsubscribe from this list, please send an email to > > lists...@witango.com with "unsubscribe witango-talk" in the body. > > > > > > > > ---------------------------------------- > > > > To unsubscribe from this list, please send an email to > > lists...@witango.com with "unsubscribe witango-talk" in the body. > > > > > > > > ---------------------------------------- > > > > To unsubscribe from this list, please send an email to > lists...@witango.com with "unsubscribe witango-talk" in the body. > > > > > > > > ---------------------------------------- > > > > To unsubscribe from this list, please send an email to > lists...@witango.com with "unsubscribe witango-talk" in the body. > > -- > Robert Garcia > BigHead Technology > 15520 Coutelenc Rd > Magalia, Ca 95954 > ph: 530.645.4040 x222 fax: 530.645.4040 > rgar...@bighead.net - http://bighead.net/ > > > > > ---------------------------------------- > > To unsubscribe from this list, please send an email to lists...@witango.com > with "unsubscribe witango-talk" in the body. > > > > ---------------------------------------- > > To unsubscribe from this list, please send an email to lists...@witango.com > with "unsubscribe witango-talk" in the body. > > > > ---------------------------------------- > > To unsubscribe from this list, please send an email to lists...@witango.com > with "unsubscribe witango-talk" in the body. > > > > ---------------------------------------- > > To unsubscribe from this list, please send an email to lists...@witango.com > with "unsubscribe witango-talk" in the body. > > > > ---------------------------------------- > > To unsubscribe from this list, please send an email to lists...@witango.com > with "unsubscribe witango-talk" in the body. > ---------------------------------------- To unsubscribe from this list, please send an email to lists...@witango.com with "unsubscribe witango-talk" in the body.
