How can we handle posted binary data??

[Shigeru]

Hello.

How can we handle posted binary data with CFML??
I'm thinking about handling posted binary data from Flash via URLRequest.
Java servlet can handle this, so I think CFML should be able to do something too.

Can we??

--Shigeru

[LeftCorner]

Have you tried the BinaryEncode() function?

[Newsgroup_User]

Shigeru@Linkcom wrote:
> How can we handle posted binary data with CFML??
> I'm thinking about handling posted binary data from Flash via URLRequest.

remoting won't work?

[Shigeru]

Hello.

> Have you tried the BinaryEncode() function?
No.
At first I can't post ByteArray Data from Flash to ColdFusion.

> remoting won't work?
No.
I convert Flex2.0 component to BitmapData, then I convert the BitmapData to ByteArray.
And I post ByteArray via RemoteObject to ColdFusion.
But FlashRemoting can't handle sending ByteArray. It seems like handling message eternally (never finish).

[BKBK]

How can we handle posted binary data??
What you want Coldfusion to do with the data? It is not clear to me what you mean by 'handle'.

[Shigeru]

Hi.

> What you want Coldfusion to do with the data?
> It is not clear to me what you mean by 'handle'.
Ah, I want to save binary data as a image file.

1. a user paint something at FlashPlayer.
2. a user click "Upload" button.
3. as internal programming, it upload the data to ColdFusion as ByteArray.

Our ( FlexUserGroup at Japan ) samples is here.
http://cvs.sourceforge.jp/cgi-bin/viewcvs.cgi/flex2/PaintExample/

Java servlet ( extends HttpServlet ) can handle this.
So, I thought ColdFusion should handle this, but I have no idea.

How should I??

[BKBK]

Two ideas


edited: setencoding() added

[Shigeru]

Hi, thank you for replay and sample code.

I tried "cfscript" way and I got a error like below.
It seems like ColdFusion can't handle binary data.

java.lang.IllegalArgumentException
at javax.servlet.http.HttpUtils.parseQueryString(HttpUtils.java:149)
at javax.servlet.http.HttpUtils.parsePostData(HttpUtils.java:252)
at jrun.servlet.JRunRequest.parsePostData(JRunRequest.java:381)
at jrun.servlet.JRunRequest.getParameters(JRunRequest.java:361)
at jrun.servlet.JRunRequest.getInputStream(JRunRequest.java:239)
at javax.servlet.ServletRequestWrapper.getInputStream(ServletRequestWrapper.java:191)
at coldfusion.filter.FusionContext.getRequestContent(FusionContext.java:602)
at coldfusion.filter.FormScope.fillForm(FormScope.java:202)
at coldfusion.filter.FusionContext.SymTab_initForRequest(FusionContext.java:384)
at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:33)
at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
at coldfusion.filter.RequestThrottleFilter.invoke(RequestThrottleFilter.java:115)
at coldfusion.CfmServlet.service(CfmServlet.java:107)
at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:78)
at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:91)
at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:257)
at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:541)
at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:204)
at jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:318)
at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:426)
at jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:264)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)

04/21 17:09:30 error
java.lang.IllegalArgumentException
at coldfusion.filter.FormScope.parseQueryString(FormScope.java:283)
at coldfusion.filter.FormScope.parsePostData(FormScope.java:255)
at coldfusion.filter.FormScope.fillForm(FormScope.java:206)
at coldfusion.filter.FusionContext.SymTab_initForRequest(FusionContext.java:384)
at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:33)
at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
at coldfusion.filter.RequestThrottleFilter.invoke(RequestThrottleFilter.java:115)
at coldfusion.CfmServlet.service(CfmServlet.java:107)
at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:78)
at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:91)
at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:257)
at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:541)
at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:204)
at jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:318)
at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:426)
at jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:264)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)

[BKBK]

Post completely revised after I discovered what might be the cause of the above error. Apparently, via the GetHttpRequestData() route, Coldfusion cannot parse the binary data when the encoding is its default UTF-8. Therefore, put this at the top of the page that contains the cfscript code:

<cfset setencoding("form", "UTF-16")>

[Shigeru]

Hi, BKBK.

You were right.
"<cfset setencoding("form", "UTF-16")>" doesn't need.
Actually binary data is posted from ActionScript3 and the reason of taht exception is due to a URLRequest parameter.
"contentType " of URLRequest had to be set in case of ColdFusion (Tomcat doesn't need this).

Thank you for your advice!!

var myReq:URLRequest = new URLRequest(" http://localhost/samples/PaintExample/upload.cfm");
myReq.method = "POST";
myReq.data = data;

// I add this line.
myReq.contentType = "binary";

var myLoader:URLLoader = new URLLoader();
myLoader.addEventListener(flash.events.Event.COMPLETE,completeHandler);
myLoader.addEventListener(flash.events.IOErrorEvent.IO_ERROR,imgUploadIOError);
myLoader.addEventListener(flash.events.SecurityErrorEvent.SECURITY_ERROR,imgUploadSecurityError);
myLoader.load(myReq);

[BKBK]

"<cfset setencoding("form", "UTF-16")>" doesn't need.
Actually binary data is posted from ActionScript3 and the reason of taht exception is due to a URLRequest parameter.
"contentType " of URLRequest had to be set in case of ColdFusion (Tomcat doesn't need this).

I was also disappointed to discover that Coldfusion includes header data like

-----------------------------7d6108d1304e4
Content-Disposition: form-data; name="FileContents"; filename="C:\Documents and Settings\Administrator\My Documents\My Pictures\MS_Sample.jpg"
Content-Type: image/pjpeg

before the actual GetHttpRequestData().content data, and

-----------------------------7d6108d1304e4
Content-Disposition: form-data; name="submit"
Upload File
-----------------------------7d6108d1304e4--

after it. Might be difficult to handle dynamically. I wonder if there is a neat way to remove that.

Thank you, too, for the useful Actionscript code.

[Shigeru]

Hi, BKBK.

I'm curious to know how you dump like "... ----7d6108d1304e4 ...".
It's very useful information when network problem happens.

Could you tell us the dumping way ??

[BKBK]

Hi Shigeru,

The following code might work for you. However, when the content comes from an upload-form, Coldfusion includes header-information with the binary data, as I described in my previous post.

Version 2 requires an explanation. Christian Cantrell's article gives one.

[Shigeru]

Hi, BKBK.

Thank you so much!!
Actually I don't try the code yet.
But I'll try to figure out those code and I'll explain it at my blog in Japanese.

Thanks.

[BKBK]

どういたしまして。