Commit Graph

20 Commits

Author SHA1 Message Date
Dan Brown
5f7cd735ea
Added content filtering of tags with javascript or data in values attr
Case would be blocked by CSP but adding for cases where CSP may not be
active when content taken externally.

For #3636
2022-08-11 10:28:32 +01:00
Dan Brown
abc283fc64
Extracted download response logic to its own class
Cleans up base controller and groups up download & streaming logic for
potential future easier addition of range request support.
2022-06-08 23:50:42 +01:00
Dan Brown
e72ade727d
Added audio mimes to our safe list for inline serving
Closes #3485
2022-06-08 22:30:55 +01:00
Dan Brown
ee6a2339b6
Applied latest styleCI changes 2022-03-09 14:30:36 +00:00
Dan Brown
856fca8289
Updated CSP with frame-src rules
- Configurable via 'ALLOWED_IFRAME_SOURCES' .env option.
- Also updated how CSP rules are set, with a single header being used
  instead of many.
- Also applied CSP rules to HTML export outputs.
- Updated tests to cover.

For #3314
2022-03-07 14:27:41 +00:00
Dan Brown
31f1dca8a8
Added detection and thumbnail bypass for apng images
Adds apng sniffing when generating thumbnails with retained ratios to
serve the original image files, as we do for GIF images, to prevent
the image being resized to a static version.

Is more tricky than GIF since apng file mimes and extensions
are the same as png, we have to detect part of the file header
to sniff the type. Means we have to sniff at a later stage
than GIF since we have to load the image file data.

Made some changes to the image thubmnail caching while doing
this work to fit in with this handling.

Added test to cover.
For #3136.
2022-01-04 13:10:35 +00:00
Dan Brown
8d7c8ac8bf
Done a round of phpstan fixes 2021-11-06 00:32:01 +00:00
Dan Brown
a17be959d8
Applied latest styleci changes 2021-11-01 13:26:02 +00:00
Dan Brown
ae155d6745
Added safe mime sniffing to prevent serving HTML
(Amoung other content types)
For #3027
2021-10-31 17:58:56 +00:00
Dan Brown
ef459ca4c4
Altered the parsing of custom head to prevent htmlentities on content
Was causing things like emjoi within script content to be somewhat
mangled. Instead we force UTF8 only parsing via XML declaration.

Added test to cover.

For #2923
2021-09-12 16:19:17 +01:00
Dan Brown
fb80bb5d58
Applied latest styleci changes 2021-09-06 22:19:06 +01:00
Dan Brown
88c698796b
Fixed issue with HTML tags in custom head scripts
Fixes a strange issue of HTML tags within script tags being malformed
when part of the HTML custom head content due to the PHP parsing we do.
DOMDocument seemed to cause this upon load.
Adding LIBXML_SCHEMA_CREATE to the ->loadHTML call seems to fix this but
not really sure why. Doesn't seem to cause further issues though.
Tested with multiple scripts and styles and comments and meta tags.

- Also added new testing class to cover.
- As part of testing, added new folder within tests to house setting
  specific tests.

For #2914
2021-09-05 23:52:39 +01:00
Dan Brown
492af79c27
Added a couple of additional CSP rules
As per guidance from google's CSP evaluator.
2021-09-04 14:34:43 +01:00
Dan Brown
253f386f00
Finished off script CSP rules
- Added caching for custom html head parsing to add nonce.
- Also moved api docs page into web routes to prevent issues.
2021-09-04 13:57:04 +01:00
Dan Brown
fd44e4ba74
Started application of CSP headers 2021-09-03 23:32:42 +01:00
Dan Brown
040997fdc4
Added filter for xlink:href svg xss
Simply remove all such attributes
2021-09-03 22:34:49 +01:00
Dan Brown
5e6092aaf8
Added extra HTML filtering of dangerous content
In particular, That around the casing of dangerous values within
attributes. This uses some xpath translation to handle different casing
in contains searching.
2021-09-02 22:02:30 +01:00
Dan Brown
934a833818 Apply fixes from StyleCI 2021-06-26 15:23:15 +00:00
Dan Brown
b5caaa73b7
Fixed content parsing break with line html comment
Fixes issues thrown in custom HMTL head & page content filtering when
the content is comprised of only a single HTML comment.
Adds tests to cover.

For #2804
2021-06-13 12:53:04 +01:00
Dan Brown
43b6633183 Filtered scripts in custom HTML head for exports
Since it appeared to cause problems in some scenarios.
Related to #2490
2021-05-03 23:59:52 +01:00