The error message comes from the IllegalArgumentException thrown by
java.io.File.createTempFile() - it doesn't feature in the Struts
distribution at all. Because there's no entry in
struts-messages.properties for
struts.messages.upload.error.IllegalArgumentException it gets added to
the errors as-is I believe.
In JakartaStreamMultiPartRequest.createTemporaryFile() appending an
extra '_' to the prefix for the case when it has a length of less than 3
seems to resolve the issue with no side-effects from what I can tell.
Cheers,
Stephen.
On 05/01/2016 16:45, Martin Gainty wrote:
difficulty locating error message "Prefix string too short"
If I download struts-2.3.4.1 and expand struts2-2.3.4.1 from
https://www.apache.org/dist/struts/2.3.24.1/
struts2-2.3.24.1>grep -S -l "Prefix string too short" *there are no hits?
Please confirm https://www.apache.org/dist/struts/2.3.24.1/ is the struts
2.3.4.1 you are working with
Martin
______________________________________________
To: user@struts.apache.org
From: stephen+li...@jiglu.com
Subject: Issue with jakarta-stream multipart parser
Date: Tue, 5 Jan 2016 15:58:30 +0000
I'm having a problem using the jakarta-stream multipart parser when a
filename is used that is just a single character long excluding the
suffix. This triggers a check in java.io.File.createTempFile that
ensures that a supplied prefix must be at least three characters long:
java.lang.IllegalArgumentException: Prefix string too short
at java.io.File.createTempFile(Unknown Source)
at
org.apache.struts2.dispatcher.multipart.JakartaStreamMultiPartRequest.createTemporaryFile(JakartaStreamMultiPartRequest.java:436)
at
org.apache.struts2.dispatcher.multipart.JakartaStreamMultiPartRequest.processFileItemStreamAsFileField(JakartaStreamMultiPartRequest.java:398)
at
org.apache.struts2.dispatcher.multipart.JakartaStreamMultiPartRequest.processUpload(JakartaStreamMultiPartRequest.java:313)
at
org.apache.struts2.dispatcher.multipart.JakartaStreamMultiPartRequest.parse(JakartaStreamMultiPartRequest.java:247)
at
org.apache.struts2.dispatcher.multipart.MultiPartRequestWrapper.<init>(MultiPartRequestWrapper.java:84)
Should JakartaStreamMultiPartRequest.createTemporaryFile() add an extra
padding character when the prefix is too short? For now I assume the
only way to catch it in an action is by looking for that string in the
action errors?
This is with 2.3.24.1.
Stephen.
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