* translation system and unit tests
* Translations everywhere
Dont use translation merge
It is not available with PHP builtin gettext, so it would have lead to inconsistency.
The hash is generated using the same salt as the one used for credentials (1 salt per instance) in order to avoid exposing the instance version.
Fixes#965
* `get_http_url()` renamed to `get_http_response()`.
* Use the same HTTP context to retrieve response headers and content.
* Follow HTTP 301 and 302 redirections to retrieve the title (default max 3 redirections).
* Add `LinkUtils` to extract titles and charset.
* Try to retrieve charset from HTTP headers first (new), then HTML content.
* Use mb_string to re-encode title if necessary.
Relates to #40
Relates to #372
Additions:
- FileUtils: IOException
- ApplicationUtils:
- check if Shaarli resources are accessible with sufficient permissions
- basic test coverage
- index.php:
- check access permissions and redirect to an error page if needed:
- before running the first installation
Modifications:
- LinkDB:
- factorize datastore write code
- check if the datastore
(exists AND is writeable) OR (doesn't exist AND its parent dir is writable)
- raise an IOException if needed
Signed-off-by: VirtualTam <virtualtam@flibidi.net>
