This commit adds a cache for 'getContents' to '/cache/server'. All
contents are cached by default (even in debug mode). If debug mode
is enabled, the cached data is overwritten on each request.
In normal mode RSS-Bridge adds the 'If-Modified-Since' header with
the timestamp from the previously cached data (if available) to the
request.
Find more information on 'If-Modified-Since' here:
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/If-Modified-Since
If the server responds with "304 Not Modified", the cached data is
returned.
If the server responds with "200 OK", the received data is written
to the cache (creates a new cache file if it doesn't exist yet).
No changes were made for all other response codes.
Servers that don't support the 'If-Modified-Since' header, will
respond with "200 OK".
For servers that respond with "304 Not Modified", the required band-
width will decrease and RSS-Bridge will responding faster.
Files in the cache are forcefully removed after 24 hours.
Notice: Only few servers actually do support 'If-Modified-Since'.
Thus, most bridges won't be affected by this change.
simple_html_dom currently doesnt support "->find('*')", which is a
known issue: https://sourceforge.net/p/simplehtmldom/bugs/157/
The solution implemented by RSS-Bridge is to find all nodes WITHOUT
a specific attribute. If the attribute is very unlikely to appear
in the DOM, this is essentially returning all nodes.
This is the meaning behind
"->find('*[!b38fd2b1fe7f4747d6b1c1254ccd055e]')"
Error log reports "PHP Notice: Undefined offset: 2 in /rss-bridge/
lib/Debug.php on line 112" if the array returned by debug_backtrace
does not contain 3 items.
This commit fixes the issue by always using the last element in the
backtrace "end($backtrace)".
- Initialize with null to prevent leaking configurations
- Check if the working directory is a directory
- Store the real path instead of raw data
- Add final path separator as expected by Bridge::create
general
- Use self:: instead of Cache:: or static::
- Rename $dirCache to $workingDir
- Initialize $workingDir with null
function setDir
- Clear previous working directory before checking input parameters
- Change wording for the exception messages
- Store realpath instead of raw parameter
- Add path separator
This ensures the path always ends with the path separator, as assumed
by Cache::create
- Add check if the provided working directory is a valid directory
function getDir
- Use static parameter instead of function variable
- Change wording for the exception message
function create
- Rename parameter $nameCache to $name
- Rename $pathCache to $filePath
- Change wording for the exception messages
function isValidNameCache
- Rename function to isCacheName
- Rename parameter $nameCache to $name
- Explain in the function documentation the meaning of a 'valid name'
- Ensure Boolean return value (preg_match returns integer)
- Check if $name is a string
- Use slashes to enclose the regex
