LiveDocs Comments - coldfusion - 6.1 - htmldocs - tags-p35.htm

coldfusion/6.1/htmldocs/tags-p35.htm

2007-07-24T14:31:59

accept = "image/jpg

in the docs is wrong. It should be accept="image/jpeg

jpg is not a proper mime type. See:

http://www.iana.org/assignments/media-types/image/

For a list.

coldfusion/6.1/htmldocs/tags-p35.htm

Tacs — 2005-07-19T11:18:25

The documentation should also mention that it is impossible to find the clientFile name without uploading the file to a directory. This functionality is so that you can prepend an ID number to the beginning of a file before uploading it to a directory. This is a problem with the coding of coldfusion, and a new set of functionality would be required, an example of how PHP handles this problem can be found here: http://www.php.net/manual/en/features.file-upload.php

A better alternative is to use an array like PHP, in coldfusion syntax it would result in the following:
FORM.fileupload.fileSize
FORM.fileupload.clientFile
...
In this way, a user is not required to FULLY UPLOAD A FILE before they can even find the client's filename or the size of the file. This information MUST be available before hand, so that the user can even decide if they want to upload the file.
--------------------
A few HTML / file upload limitations that seem to be unclear:
-You can only upload one file at a time, furthermore you cannot upload a directory. (Opera 7 is an exception, but not well supported)
-You cannot set a default location to pull a file from. (This would pose a security threat, imagine the default of "/etc/passwd") One exception is that you can use Javascript to set a location, but if the location has been set through javascript an alert window appears when the submit button is pressed asking the user to confirm that file upload location
-All limitations in fileupload size are adjustable through coldfusion and webserver configuration files
-When the user submits a form with a fileupload, it is saved packet by packet into Coldfusion's temporary directory. Like the following, C:\CFusionMX\runtime\servers\default\SERVER-INF\temp\wwwroot-tmp\neotmp11917.tmp.
-When the
I can understand why you want to do this for UI reasons, but that is a ridiculous security hazard. If I could do that I would loop through your internet explorer cookies files and steal all your passwords! HTML form fields require the user to choose the file and confirm that choice with the submit button. You can sometimes pre-populate the file name with javascript, but I never wanted to go that far.

-dea9

coldfusion/6.1/htmldocs/tags-p35.htm

Jignesh Patel — 2005-04-06T13:04:10

You can upload a file using after successful upload, you need to rename the file with your preffered file name using .

coldfusion/6.1/htmldocs/tags-p35.htm

2005-04-06T12:55:03

I want to Upload a file from a users PC, however, I don't want the user to specify the file to be uploaded (the filename and location are always the same). How can this be done?

coldfusion/6.1/htmldocs/tags-p35.htm

jrunrandy — 2005-03-14T13:40:12

There are many variables that determine the file-size limit. My understanding is that available JVM memory is the most important one.

You might try adjusting the -Xmx512m in the java.args line of cf_root/runtime/bin/jvm.config to something larger.

If that doesn't work, I suggest posting your question to the online forums: http:webforums.macromedia.com/coldfusion.

coldfusion/6.1/htmldocs/tags-p35.htm

Jignesh Patel — 2005-03-10T07:49:40

wiredwizard,
I dont understand your solution. Can you explain me how you solve your problem for

coldfusion/6.1/htmldocs/tags-p35.htm

2005-03-09T19:35:59

I'd like to know the limits on file sizes, how this affects memory, etc.
Uploading a ~1.5GB file fails - "Document contains no data" - removing the tag dosn't help - it appears to be a server limitation/setting - any info?

coldfusion/6.1/htmldocs/tags-p35.htm

abeBayquen — 2005-02-20T18:44:24

I need to automate CFFILE somehow... is it possible to read the contents of a client directory and upload it's contents with CFFILE with the user indicating the directory or just one file in the directory?

coldfusion/6.1/htmldocs/tags-p35.htm

wiredwizard — 2005-02-17T08:31:11

Discovered the error of my ways

in reguard to cffile uploading to C:\CFusionMX\runtime\servers\default\SERVER-INF\temp\wwwroot-tmp\neotmp11917.tmp

1. be sure the destination directory already exist
2.use cffile insted of just file ie...
3.double check that your update statement is using correct name ie...
'#PIC1#' and not '#FORM.PIC1#'

coldfusion/6.1/htmldocs/tags-p35.htm

wiredwizard — 2005-02-15T13:02:34

no one ever covered why cffile upload sends file to C:\CFusionMX\runtime\servers\default\SERVER-INF\temp\wwwroot-tmp\neotmp11917.tmp

fileField = "pic"
destination = "c:\inetpub\wwwroot\MYSITE\images\"
accept = "image/*" nameConflict = "MakeUnique">

coldfusion/6.1/htmldocs/tags-p35.htm

rpress — 2005-02-03T12:37:11

Is there a file size limit in transferring files this way? Can I move, for example, 4 Gb files? Is the entire file buffered in memory before writing to the file destination, or is it written to disk in chunks?

Thanks

coldfusion/6.1/htmldocs/tags-p35.htm

wiredwizard — 2005-01-17T13:15:19

I'm having same issue with cffile uploading to C:\CFusionMX\runtime\servers\default\SERVER-INF\temp\wwwroot- instead of destination but same file works fine on development server very confusing think it has something to do with jrun

coldfusion/6.1/htmldocs/tags-p35.htm

bryanhur — 2005-01-12T14:06:38

I agree. I'm fighting this right now and can't figure out why the upload won't happen.

coldfusion/6.1/htmldocs/tags-p35.htm

tresise — 2004-12-19T13:17:02

I was using cffile upload on a shared server using sandbox, got the error C:\CFusionMX\runtime\servers\default\SERVER-INF\temp\wwwroot-tmp\neotmp11917.tmp
Might be nice to cover what happens in these sorts of situations ie what errors actually mean.

coldfusion/6.1/htmldocs/tags-p35.htm

2004-12-10T07:25:33

You can sometimes get the error "String index out of range:" when using CFFILE. What you may find if you google is that CFFILE needs the full path. That's ok, but sometimes the error can continue occurring.

The other thing that I found is that CFFILE doesn't like not having an extension on the filename. So saving an uploaded file as "abcdef12345" can sometimes throw this error.

To get around this, add in an extension, like ".tmp" because (I think) CFFILE looks for the position of the "." in the filename to create some of the CFFILE variables that can then be accessed by the script after the file upload has occurred.

coldfusion/6.1/htmldocs/tags-p35.htm

MaestroFJP — 2004-08-23T04:16:48

Is the cffile "global" scope thread-safe in a persistant cfc enviroment or do you need to instantiate a new Input/Output object to maintain thread-safety?

You cannot "var" cffile to create a private variable at the begining of your method. After calling is it sufficient to dupCffile = duplicate(cffile) to return at the end of the method?

Would it be thread-safe, if you temporarily instiantiate a new Input/Output cfc into the private scope (by var) in an persistant scope CFC in which your I/O would be gone when the method that called it was finished?

coldfusion/6.1/htmldocs/tags-p35.htm

2004-06-02T12:15:37

Add a form element to select the file:

coldfusion/6.1/htmldocs/tags-p35.htm

2004-04-27T14:26:35

How can read a file from a dynamic location (such as a file on users computer)?

coldfusion/6.1/htmldocs/tags-p35.htm

lbryngel — 2004-02-19T06:34:27

Ammendment to above example encompassing code into one page:

fileField = "FileContents"
destination = "c:\files\upload\"
accept = "text/html"
nameConflict = "MakeUnique">

coldfusion/6.1/htmldocs/tags-p35.htm

lbryngel — 2004-02-18T08:41:33

We are working to improve the examples in the ColdFusion reference pages. We propose to replace the current example on this page with the the following example. If you have any comments on this example, add them to this page.

FORM PAGE

POST PAGE

coldfusion/6.1/htmldocs/tags-p35.htm

Chris Hiester - MM Support — 2004-02-05T12:12:45

It is important to note that if you don't specify a full path in the DESTINATION attribute of CFFILE ACTION="UPLOAD", the default location is relative to the GetTempDirectory() location. However, there must be a directory in that location that matches the string that you enter for the DESTINATION, otherwise you'll get a "string index out of range error." ColdFusion does not automatically create the directory if it does not already exist.

coldfusion/6.1/htmldocs/tags-p35.htm

uniquename2 — 2003-12-15T06:05:42

This document doesn't clearly explain the scope of the "FileField" attribute. When CFFile can successfully upload a file using the value "form.picture_1" in the cf page processing the form request, it does NOT process "caller.form.picture_1" in any custom tags called by the same page. (Nor will any custom tags process that file if the field or the form is passed to them as an attribute.) This document needs an explanation of how this relates to the instructions not to use pound signs for this attribute.