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Posted to users@httpd.apache.org by Greg Wittel <gw...@proofpoint.com> on 2007/12/19 18:05:36 UTC
[users@httpd] mod_dav -- Small Files Corrupt if locked first
Working on setting up file upload via DAV and I've found an odd problem...
If a file is <= 8192 bytes AND I've placed a protective lock on the file
before sending, it will be corrupted.
If I don't put a write lock before sending the file, it arrives fine. If I
send something > 8192 bytes protective locks are OK.
I'm not sure if this was fixed in a later HTTPD, I don't have the option of
upgading =/. I couldn't find anything in Bugzilla, and I've dumped the
data posted to Apache via the DAV client, and that is correct.
Any thoughts? Test case/Apache info below
-Greg
DAV Client: Perl HTTP::DAV 0.31 / dave
Apache Info:
Apache/2.0.55 (Unix) mod_ssl/2.0.55
OpenSSL/0.9.8a DAV/2 mod_perl/1.999.21 Perl/v5.8.6
Test case:
Test files and correct MD5s:
$ dd if=/dev/urandom of=test-8k.bin bs=8k count=1
$ dd if=/dev/urandom of=test-8.nk.bin bs=8193 count=1
$ md5sum test-8k.bin test-8.nk.bin
629d17eb9106740898ead91f88c55181 test-8k.bin
1bd8d5c63f391881b5c68c294f3e8a58 test-8.nk.bin
$ dave -u user -p 'pass' https://davhost:davport/blah/
Duplicate specification "man|?" for option "?"
...
(1) File Corrupted if lock issued:
dave> lock test-8k.bin
dave> put test-8k.bin test-8k.bin
put https://(uri)/test-8k.bin (8192 bytes) (success)
dave> unlock test-8k.bin
(2) File not corrupt (8192 byte) / no lock:
dave> put test-8k.bin test-8k.bin
$ md5sum test-8k.bin
a1f8386ab62fc5acd73e694f255af6a6 test-8k.bin
(2) File not corrupt (8193 bytes):
dave> lock test-8.nk.bin
dave> put test-8.nk.bin test-8.nk.bin
put https://(uri)/test-8.nk.bin (8193 bytes) (success)
dave> unlock test-8.nk.bin
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