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Improves #306
Relates to #335 & #336
Duplicated by #339
Issues:
- PHP regenerates the session ID if it is not compliant
- the regex checking the session ID does not cover all cases
- different algorithms: md5, sha1, sha256, etc.
- bit representations: 4, 5, 6
Fix:
- `index.php`:
- remove `uniqid()` usage
- call `session_regenerate_id()` if an invalid cookie is detected
- regex: support all possible characters - '[a-zA-Z,-]{2,128}'
- tests: add coverage for all algorithms & bit representations
See:
- http://php.net/manual/en/session.configuration.php#ini.session.hash-function
- https://secure.php.net/manual/en/session.configuration.php#ini.session.hash-bits-per-character
- http://php.net/manual/en/function.session-id.php
- http://php.net/manual/en/function.session-regenerate-id.php
- http://php.net/manual/en/function.hash-algos.php
Signed-off-by: VirtualTam <virtualtam@flibidi.net>
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