Support for unicode files and directories names

[wizzard]

Add support for unicode files and directories names.
Add a few tests which operate with unicode files and directories.

This issue is related to #15

Current behavior:

touch тест.пхп

11:57:00 [con] (http_connection_make_request http_connection.c:561) [0x12d4120] PUT bucket: skoobe-test-s3ffs path: /aaa/тест.пхп host: skoobe-test-s3ffs.s3.amazonaws.com
11:57:00 [con] (http_connection_on_responce_cb http_connection.c:328) Got HTTP response from server! (435msec)
11:57:00 [con]  (http_connection_on_responce_cb http_connection.c:413) Server returned HTTP error: 403 !
11:57:00 [con] (http_connection_on_responce_cb http_connection.c:414) Error str: Forbidden
11:57:00 [con] (http_connection_on_responce_cb http_connection.c:421) Error msg: >>
<?xml version="1.0" encoding="UTF-8"?>
<Error><Code>SignatureDoesNotMatch</Code><Message>The request signature we calculated does not match the signature you provided. Check your key and signing method.</Message><StringToSignBytes>50 55 54 0a 31 42 32 4d 32 59 38 41 73 67 54 70 67 41 6d 59 37 50 68 43 66 67 3d 3d 0a 0a 57 65 64 2c 20 32 34 20 41 70 72 20 32 30 31 33 20 31 31 3a 35 37 3a 30 30 20 47 4d 54 0a 2f 73 6b 6f 6f 62 65 2d 74 65 73 74 2d 73 33 66 66 73 2f 61 61 61 2f c3 91 c2 82 c3 90 c2 b5 c3 91 c2 81 c3 91 c2 82 2e c3 90 c2 bf c3 91 c2 85 c3 90 c2 bf</StringToSignBytes><RequestId>1240EEE32C239C64</RequestId><HostId>CCelF9yA9DUgDZ6Wz7w51MOl5r/2A2WAWEunaUS9Vqu/m7ohYXYFGY5gGn3mOxsA</HostId><SignatureProvided>HQ1OCK1mU/eF/y6huoCw+r6WBNI=</SignatureProvided><StringToSign>PUT
1B2M2Y8AsgTpgAmY7PhCfg==

Wed, 24 Apr 2013 11:57:00 GMT
/skoobe-test-s3ffs/aaa/�е��.п�п</StringToSign><AWSAccessKeyId>AKIAJ7FYHWJ3NYYCXBXA</AWSAccessKeyId></Error><<
11:57:00 [fio]  (fileio_release_on_part_sent_cb file_io_ops.c:282) Failed to send bufer to server !

[wizzard]

Should be fixed now.

~/riofs/src/mnt/aaa$ ls -lat
total 0
drwxr-xr-x 1 root root     0 Apr 25 02:52 тест директория
drwxr-xr-x 1 root root     0 Apr 25 02:51 bbb
drwxr-xr-x 1 root root     0 Apr 25 02:51 test dir here
drwxr-xr-x 1 root root     0 Apr 25 02:51 .
drwxr-xr-x 1 root root     0 Apr 25 02:51 ..
-rw-r--r-- 1 root root 23282 Apr 25 01:04 zzz.txt
-rw-r--r-- 1 root root 23282 Apr 25 01:03 тест.файл.xxx
-rw-r--r-- 1 root root     0 Apr 25 01:02 ффф
-rw-r--r-- 1 root root     4 Apr 25 00:58 aaa

[henningpeters]

Directory listing works now, but opening/writing to a file that contains unicode characters causes still a problem: it hangs.

[wizzard]

Tested write / read files with non-ascii characters and spaces in names, works fine.
Right now file name is url-encoded before sending a request to S3 server.

echo "123" > "aaa bbb ccc"
cat aaa\ bbb\ ccc 
123