JcrPropertyResource sets incorrect content length for strings containing
non-ascii character
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Key: SLING-1761
URL: https://issues.apache.org/jira/browse/SLING-1761
Project: Sling
Issue Type: Bug
Components: JCR
Affects Versions: JCR Resource 2.0.6
Reporter: Julian Sedding
JcrPropertyResource sets the content length of the property in its metadata. To
do so, it uses javax.jcr.Property#getLength() to determine the content length.
The documentation for javax.jcr.Property#getLength() states "[...] Returns the
length in bytes if the value is a PropertyType.BINARY, otherwise it returns the
number of characters needed to display the value in its string form. [...]".
The documentation in ResourceMetadata is not explicit, but from its usage in
StreamRendererServlet I conclude that ResourceMetadata.getContentLength() is
intended for use in the Content-Length HTTP header. If my assumptions are
correct, the content length indicates the number of bytes in the string, while
javax.jcr.Property#getLength() returns the number of characters.
The effect of this can be observed by the following steps:
* create a string property "/utf8string" with value "Bär"
* access this property using a browser (e.g. http://localhost:8888/utf8string),
so that the property gets rendered by the StreamRendererServlet
=> the string is rendered incorrectly (due to a missing Content-Type header)
=> the string is cut off (due to the incorrectly set Content-Length header)
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