The TestFileListing test in tplcontext_test has one test that verifies
if directory traversal is not happening. The context root is set to
'/tmp' and then it tries to open '../../../../../etc', which gets
normalized to '/tmp/etc'.
The test then expects an error to be returned, assuming that '/tmp/etc'
does not exist on the system. When it does exist, it results in a test
failure:
```
--- FAIL: TestFileListing (0.00s)
tplcontext_test.go:422: Test 4: Expected error but had none
FAIL
FAIL
github.com/caddyserver/caddy/v2/modules/caddyhttp/templates 0.042s
```
Instead of using '/tmp' as root, use a dedicated directory created with
`os.MkdirTemp()` instead. That way, we know that the directory is empty.
* Update tplcontext.go
Add {{ render "/path/to/file.ext" $data }} via funcRender
* Update tplcontext.go
* Refactor funcInclude, add funcImport to enable {{block}} and {{template}}
* Fix funcImport return of nil showing up in html
* Update godocs for and
* Add tests for funcInclude
* Add tests for funcImport
* os.RemoveAll -> os.Remove for TestFuncInclude and TestFuncImport
* add test case for SplitFrontMatter showing issue with windows newline
* fix issue with windows newline when using SplitFrontMatter
* Update modules/caddyhttp/templates/frontmatter.go
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
* make it mere explicit what is trimmed from firstLine
* Update modules/caddyhttp/templates/frontmatter.go
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
Using html/template.HTML like we were doing before caused nested include
to be HTML-escaped, which breaks sites. Now we do not escape any of the
output; template input is usually trusted, and if it's not, users should
employ escaping actions within their templates to keep it safe. The docs
already said this.
