Hi,
I want to find out how to correctly fix BZ 41430 and 36121. They have to
do with the way mod_dir and mod_jk interact. Before fixing the code I
find it necessary to define the correct behaviour, which seems to be
non-trivial.
The behaviour needs to be described depending on DirectoryIndex and
"JkOptions ForwardDirectories".
I try to answer via two general rules, that I suggest:
A) The first entry in DirectoryIndex that exists either locally or
matches a JkMount stops the procedure. If it exists locally it gets
served by Apache, if it matches a JkMount and does not exist locally it
gets forwarded to Tomcat.
B) If no entry in DirectoryIndex exists locally or matches a JkMount,
the Option ForwardDirectories decides: Off=Apache, On=Tomcat. The
forwarded request is the original request without any DirectoryIndex files.
I haven't checked, if this can be implemented easily. I first want to
know, if this seems like a reasonable behaviour?
The downside is: If you have "JkMount /*.jsp w" and "DirectoryIndex
index.jsp", Apache will send all dirs with index.jsp to Tomcat.
Here are some cases:
Assume we have DirectoryIndex file1 file2 and we process a request
/test/ which points to /path/test/.
1) Non of the files /path/test/file1 and /path/test/file2 exist, non of
them matches any JkMount.
a) ForwardDirectories is not set: Apache tries to serve the directory
/path/test/
b) ForwardDirectories is set: We forward the original request to Tomcat
(/test/) without file1 or file2.
2) Non of the files /path/test/file1 and /path/test/file2 exist, but one
of them (assume file1) matches a JkMount.
We forward /test/file1.
3) At least one of the files exists (assume file2), non of them matches
any JkMount.
a) ForwardDirectories is not set: Apache tries to serve /path/test/file2
b) ForwardDirectories is set: Again Apache tries to serve /path/test/file2.
4) At least one of the files exists (assume file2), and file1 matches a
JkMount.
Apache serves /path/test/file2, or forward /test/file1, whichever comes
first in the DirectoryIndex list.
5) The same file file1 that exists, also matches a JkMount.
Apache serves locally /path/test/file1.
Thanks
Rainer
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