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Allow $dollar (or ${dollar}) to translate to a literal $ to allow
support for sub-delimiters in URIs.
It is possible to have URLs like
https://example.com/path/15$1588/9925$2976.html
and thus it would be useful to be able to specify them in various bits
of the unit config such as the location setting.
However this hadn't been possible due to $ being used to denote
variables for substitution. E.g $host.
As was noted in the below GitHub issue it was suggested by @VBart to
use $sign to represent a literal $, however I feel $dollar is more
appropriate so we have a variable named after the thing it represents,
also @tippexs found[0] that &dollar is used in HTML to represent a $, so
there is some somewhat related precedent.
(The other idea to use $$ was rejected in my original pull-request[1]
for this issue.)
This means the above URL could be specified as
https://example.com/path/15${dollar}1588/9925${dollar}2976.html
in the unit config.
This is done by adding a variable called 'dollar' which is loaded into
the variables hash table which translates into a literal $.
This is then handled in nxt_var_next_part() where variables are parsed
for lookup and $dollar is set for substitution by a literal '$'. Actual
variable substitution happens in nxt_var_query_finish().
[0]: https://github.com/nginx/unit/pull/693#issuecomment-1130412323
[1]: https://github.com/nginx/unit/pull/693
Closes: https://github.com/nginx/unit/issues/675
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The #endif was misplaced by accident during a refactor:
<https://github.com/nginx/unit/commit/029942f4eb7196c2cff0d0e26bc6ff274138f7d8>.
clang(1)'s -Wunreachable-code-break (implied by -Weverything) catches
that, but it is only produced for code compiled without support
for Unix sockets, which is probably the reason it was undetected:
no-one seems to be compiling Unit without Unix sockets support (at
least with clang(1)).
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User-space programs should use the SYS_*form, as documented in
syscall(2). That also adds compatibility to non-Linux systems.
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Some OSes, as Linux, provide FIONBIO in <sys/ioctl.h>. Others,
such as the BSDs and Illumos, provide it in <sys/filio.h>, but
they all include that header from <sys/ioctl.h>, so for this test,
we can simplify and just include <sys/ioctl.h>.
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posix_spawn(3POSIX) was introduced by POSIX.1d
(IEEE Std 1003.1d-1999), and was later consolidated in
POSIX.1-2001, requiring it in all POSIX-compliant systems.
It's safe to assume it's always available, more than 20 years
after its standardization.
Link: <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/spawn.h.html>
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That is already handled in auto/options. It is better suited
there, since it's an option, and not a module, and also because it
makes use of variables declared there.
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This commit adds the following variables:
$remote_addr, $time_local, $request_line, $status,
$body_bytes_sent, $header_referer, $header_user_agent.
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This commit adds the variables $arg_NAME, $header_NAME, and $cookie_NAME.
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No functional changes.
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Closes: <https://github.com/nginx/unit/issues/676>
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Added "go" availability check before trying to build an application.
update_action() method used were possible and fixed bug with
the relative path determination in test_static_chroot.py.
Templates optimization and style fixes.
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As was pointed out by the cppcheck[0] static code analysis utility there
was a useless assignment in nxt_unit_request_read(). The size parameter
is passed in by value and was being modified without being used again.
[0]: https://cppcheck.sourceforge.io/
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As was pointed out by the cppcheck[0] static code analysis utility, lib
was being set in nxt_unit_shm_open() regardless of platform when in fact
it's only used when (NXT_HAVE_MEMFD_CREATE || NXT_HAVE_SHM_OPEN).
Move the variable declaration & definition to be within the
#if (NXT_HAVE_MEMFD_CREATE || NXT_HAVE_SHM_OPEN)
block.
[0]: https://cppcheck.sourceforge.io/
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In src/nxt_sockaddr.c::nxt_job_sockaddr_inet_parse() there is a check
that port > 0 then there is a check that port < 1 || port > 65535, well
we _know_ it can't be less than 1.
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As was pointed out by the cppcheck[0] static code analysis utility we
can mark a couple of variables as 'const'. This acts as a hint to the
compiler about our intentions and the compiler will tell us when we
deviate from them.
[0]: https://cppcheck.sourceforge.io/
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As was pointed out by the cppcheck[0] static code analysis utility we
can mark numerous function parameters as 'const'. This acts as a hint to
the compiler about our intentions and the compiler will tell us when we
deviate from them.
[0]: https://cppcheck.sourceforge.io/
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The code for finding the extension made a few assumptions that are
no longer true. It didn't account for pathnames that didn't
contain '/', including the empty string, or the NULL string. That
code was used with "share", which always had a '/', but now it's
also used with "index", which should not have a '/' in it.
This fix works by limiting the search to the beginning of the
string, so that if no '/' is found in it, it doesn't continue
searching before the beginning of the string.
This also happens to work for NULL. It is technically Undefined
Behavior, as we rely on `NULL + 0 == NULL` and `NULL - NULL == 0`.
But that is the only sane behavior for an implementation, and all
existing POSIX implementations will Just Work for this code.
Relying on this UB is useful, because we don't need to add an
explicit check for NULL, and therefore we have faster code.
Although the current code can't have a NULL, I expect that when we
add support for variables in the index, it will be NULL in some
cases.
Link: <https://stackoverflow.com/q/67291052/6872717>
The same code seems to be defined behavior in C++, which normally
will share implementation in the compiler for these cases, and
therefore it is really unlikely to be in trouble.
Link: <https://stackoverflow.com/q/59409034/6872717>
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It's never used.
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This makes the replacement of forwarded request header
like client_ip and protocol more generic.
It's a prerequirement for protocol replacement.
No functional changes.
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No functional changes.
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No functional changes.
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The message tracking is unused since 1d84b9e4b459 commit.
This fixes the issue found by Coverity (CID 376263).
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No functional changes.
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No functional changes.
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No functional changes.
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Before Node.js v16.14.0 the "format" value in defaultResolve
was ignored so error was hidden. For more information see:
https://github.com/nodejs/node/pull/40980
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This supports a new variable $request_uri that contains the path
and the query (See RFC 3986, section 3). Its contents are percent
encoded. This is useful for example to redirect HTTP to HTTPS:
{
"return": "301",
"location": "https://$host$request_uri"
}
When <http://example.com/foo%23bar?baz> is requested, the server
redirects to <https://example.com/foo%23bar?baz>.
===
Testing:
//diff --git a/src/nxt_http_return.c b/src/nxt_http_return.c
//index 82c9156..adeb3a1 100644
//--- a/src/nxt_http_return.c
//+++ b/src/nxt_http_return.c
//@@ -196,6 +196,7 @@ nxt_http_return_send_ready(nxt_task_t *task,
void *obj, void *data)
// field->value = ctx->encoded.start;
// field->value_length = ctx->encoded.length;
// }
//+ fprintf(stderr, "ALX: target[%1$i]: <%2$.*1$s>\n",
(int)r->target.length, r->target.start);
//
// r->state = &nxt_http_return_send_state;
//
{
"listeners": {
"*:81": {
"pass": "routes/ru"
}
},
"routes": {
"ru": [{
"action": {
"return": 301,
"location": "$request_uri"
}
}]
}
}
$ curl -i http://localhost:81/*foo%2Abar?baz#arg
HTTP/1.1 301 Moved Permanently
Location: /*foo%2Abar?baz
Server: Unit/1.27.0
Date: Mon, 30 May 2022 16:04:30 GMT
Content-Length: 0
$ sudo cat /usr/local/unit.log | grep ALX
ALX: target[15]: </*foo%2Abar?baz>
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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".
===
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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