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This supports a new option "index" that configures a custom index
file name to be served when a directory is requested. This
initial support only allows a single fixed string. An example:
{
"share": "/www/data/static/$uri",
"index": "lookatthis.htm"
}
When <example.com/foo/bar/> is requested,
</www/data/static/foo/bar/lookatthis.html> is served.
Default is "index.html".
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nxt_conf_validator.c:
Accept "index" as a member of "share", and make sure it's a string.
===
I tried this feature in my own computer, where I tried the
following:
- Setting "index" to "lookatthis.htm", and check that the correct
file is being served (check both a different name and a
different extension).
- Not setting "index", and check that <index.html> is being
served.
- Settind "index" to an array of strings, and check that the
configuration fails:
{
"error": "Invalid configuration.",
"detail": "The \"index\" value must be a string, but not an array."
}
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Before this patch, if "index" was a file, but not a regular file
nor a directory, so it may have been for example a FIFO, Unit
returned 404. But if "index" was a directory, Unit returned 301.
For consistency, this patch makes Unit return 404 for every
non-regular file, including directories.
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Having a configurable index filename will require adding an index
field to this structure. The most natural name for that field is
'index', so the current index field should be renamed to allow for
that. A sensible name is 'share_idx', since it's the index of the
shares array in 'nxt_http_static_conf_t'.
Instead of 'share_index' I opted for the shorter 'share_idx'.
Also, when 'index' allows an array of filenames in a following
commit, another similar variable 'index_idx' should be created,
and having a different prefix and suffix seems more readable than
for example 'index_index'.
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The previous commit added more generic APIs for handling
NXT_CONF_VALUE_ARRAY and non-NXT_CONF_VALUE_ARRAY together.
Modify calling code to remove special cases for arrays and
non-arrays, taking special care that the path for non arrays is
logically equivalent to the previous special cased code.
Use the now-generic array code only.
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It's not needed after 69d823e5710a.
Found by Clang Static Analyzer.
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This commit supports variable in the "share" option, the finding path to
file serve is the value from "share". An example:
{
"share": "/www/data/static$uri"
}
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No functional changes.
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Support for chrooting, rejecting symlinks, and rejecting crossing mounting
points on a per-request basis during static file serving.
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This is a prerequisite for further introduction of openat2() features.
No functional changes.
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When a static file larger than NXT_HTTP_STATIC_BUF_SIZE (128K) is served, two
buffers are allocated and chained; each retains the whole request memory pool.
Starting from 41331471eee7, the completion handler was called once for a linked
buffer chain, but the second buffer got lost.
This patch improves the completion handler's treatment of static buffers to
handle all linked buffers.
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AVIF is a modern image format based on the AV1 video codec. It generally has
better compression than other widely used formats (WebP, JPEG, PNG, and GIF)
and is designed to supersede them. Support was already added to the latest
version of Chrome.
APNG extends PNG to permit animated images that work similarly to animated GIF.
It's supported by most modern browsers.
Also removed duplicated ".svg" entry.
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According to the C standard, pointer arguments passed to memcpy() calls shall
still have valid values. NULL is considered as invalid.
Found with GCC Static Analyzer.
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It allows proceeding to another action if a file isn't available.
An example:
{
"share": "/data/www/",
"fallback": {
"pass": "applications/php"
}
}
In the example above, an attempt is made first to serve a request with
a file from the "/data/www/" directory. If there's no such file, the
request is passed to the "php" application.
Fallback actions may be nested:
{
"share": "/data/www/",
"fallback": {
"share": "/data/cache/",
"fallback": {
"proxy": "http://127.0.0.1:9000"
}
}
}
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It's now similar to how attempts to access other non-regular files are handled.
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Found by Coverity (CID 349483).
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