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This closes #562 issue on GitHub.
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Having the basename of the script pathname was incorrect. While
we don't have something more accurate, the best thing to do is to
have it empty (which should be the right thing most of the time).
This closes #715 issue on GitHub.
The bug was introduced in git commit
0032543fa65f454c471c968998190b027c1ff270
'Ruby: added the Rack environment parameter "SCRIPT_NAME".'.
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When fixing conflicts in the changelog, a line was removed by accident.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
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This closes #645 issue on GitHub.
(Also moved a changelog line that was misplaced in a previous commit.)
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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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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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Closes: <https://github.com/nginx/unit/issues/676>
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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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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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An empty string in Location was being handled specially by not sending a
Location header. This may occur after variable resolution, so we need to
consider this scenario.
The obsolete RFC 2616 defined the Location header as consisting of an absolute
URI <https://www.rfc-editor.org/rfc/rfc2616#section-14.30>, which cannot be an
empty string. However, the current RFC 7231 allows the Location to be a
relative URI <https://www.rfc-editor.org/rfc/rfc7231#section-7.1.2>, and a
relative URI may be an empty string <https://stackoverflow.com/a/43338457>.
Due to these considerations, this patch allows sending an empty Location header
without handling this case specially. This behavior will probably be more
straightforward to users, too. It also simplifies the code, which is now more
readable, fast, and conformant to the current RFC. We're skipping an
allocation at request time in a common case such as "action": {"return": 404}
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This closes #654 issue on Github.
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............
Description:
............
Before this commit, the encoded URI could be calculated at
configuration time. Now, since variables can only be resolved at
request time, we have different situations:
- "location" contains no variables:
In this case, we still encode the URI in the conf structure, at
configuration time, and then we just copy the resulting string
to the ctx structure at request time.
- "location" contains variables:
In this case, we compile the var string at configure time, then
when we resolve it at request time, and then we encode the
string.
In both cases, as was being done before, if the string is empty,
either before or after resolving variables, we skip the encoding.
...........
Usefulness:
...........
An example of why this feature may be useful is redirecting HTTP
to HTTPS with something like:
"action": {
"return": 301,
"location": "https://${host}${uri}"
}
.....
Bugs:
.....
This feature conflicts with the relevant RFCs in the following:
'$' is used for Unit variables, but '$' is a reserved character in
a URI, to be used as a sub-delimiter. However, it's almost never
used as that, and in fact, other parts of Unit already conflict
with '$' being a reserved character for use as a sub-delimiter, so
this is at least consistent in that sense. VBart suggested an
easy workaround if we ever need it: adding a variable '$sign'
which resolves to a literal '$'.
......
Notes:
......
An empty string is handled as if "location" wasn't specified at
all, so no Location header is sent.
This is incorrect, and the code is slightly misleading.
The Location header consists of a URI-reference[1], which might be
a relative one, which itself might consist of an empty string[2].
[1]: <https://www.rfc-editor.org/rfc/rfc7231#section-7.1.2>
[2]: <https://stackoverflow.com/a/43338457>
Now that we have variables, it's more likely that an empty
Location header will be requested, and we should handle it
correctly.
I think in a future commit we should modify the code to allow
differentiating between an unset "location" and an empty one,
which should be treated as any other "location" string.
.................
Testing (manual):
.................
{
"listeners": {
"*:80": {
"pass": "routes/str"
},
"*:81": {
"pass": "routes/empty"
},
"*:82": {
"pass": "routes/var"
},
"*:83": {
"pass": "routes/enc-str"
},
"*:84": {
"pass": "routes/enc-var"
}
},
"routes": {
"str": [
{
"action": {
"return": 301,
"location": "foo"
}
}
],
"empty": [
{
"action": {
"return": 301,
"location": ""
}
}
],
"var": [
{
"action": {
"return": 301,
"location": "$host"
}
}
],
"enc-str": [
{
"action": {
"return": 301,
"location": "f%23o#o"
}
}
],
"enc-var": [
{
"action": {
"return": 301,
"location": "f%23o${host}#o"
}
}
]
}
}
$ curl --dump-header - localhost:80
HTTP/1.1 301 Moved Permanently
Location: foo
Server: Unit/1.27.0
Date: Thu, 07 Apr 2022 23:30:06 GMT
Content-Length: 0
$ curl --dump-header - localhost:81
HTTP/1.1 301 Moved Permanently
Server: Unit/1.27.0
Date: Thu, 07 Apr 2022 23:30:08 GMT
Content-Length: 0
$ curl --dump-header - localhost:82
HTTP/1.1 301 Moved Permanently
Location: localhost
Server: Unit/1.27.0
Date: Thu, 07 Apr 2022 23:30:15 GMT
Content-Length: 0
$ curl --dump-header - -H "Host: bar" localhost:82
HTTP/1.1 301 Moved Permanently
Location: bar
Server: Unit/1.27.0
Date: Thu, 07 Apr 2022 23:30:23 GMT
Content-Length: 0
$ curl --dump-header - -H "Host: " localhost:82
HTTP/1.1 301 Moved Permanently
Server: Unit/1.27.0
Date: Thu, 07 Apr 2022 23:30:29 GMT
Content-Length: 0
$ curl --dump-header - localhost:83
HTTP/1.1 301 Moved Permanently
Location: f%23o#o
Server: Unit/1.27.0
Date: Sat, 09 Apr 2022 11:22:23 GMT
Content-Length: 0
$ curl --dump-header - -H "Host: " localhost:84
HTTP/1.1 301 Moved Permanently
Location: f%23o#o
Server: Unit/1.27.0
Date: Sat, 09 Apr 2022 11:22:44 GMT
Content-Length: 0
$ curl --dump-header - -H "Host: alx" localhost:84
HTTP/1.1 301 Moved Permanently
Location: f%23oalx#o
Server: Unit/1.27.0
Date: Sat, 09 Apr 2022 11:22:52 GMT
Content-Length: 0
$ curl --dump-header - -H "Host: a#l%23x" localhost:84
HTTP/1.1 301 Moved Permanently
Location: f%2523oa#l%2523x%23o
Server: Unit/1.27.0
Date: Sat, 09 Apr 2022 11:23:09 GMT
Content-Length: 0
$ curl --dump-header - -H "Host: b##ar" localhost:82
HTTP/1.1 301 Moved Permanently
Location: b#%23ar
Server: Unit/1.27.0
Date: Sat, 09 Apr 2022 11:25:01 GMT
Content-Length: 0
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This closes #639 issue on Github.
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The __call__ method can be native and not be a PyFunction type. A type check
is thus required before accessing op_code and other fields.
Reproduced on Ubuntu 21.04, Python 3.9.4 and Falcon framework: here, the
App.__call__ method is compiled with Cython, so accessing op_code->co_flags is
invalid; accidentally, the COROUTINE bit is set which forces the Python module
into the ASGI mode.
The workaround is explicit protocol specification.
Note: it is impossible to specify the legacy mode for ASGI.
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- Ignoring Tomcat WebSocket container initialization.
- Renaming application class loader to UnitClassLoader to avoid
development environment enablement in Spring Boot.
This closes #609 issue on GitHub.
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Application handler can do anything with a stream object (including close it).
Once the stream is closed, Unit creates a new stream.
This closes #616 issue on GitHub.
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DragonFly BSD supports SCM_CREDS and SCM_RIGHTS, but only the first control
message is passed correctly while the second one isn't processed by the kernel.
This closes #599 issue on GitHub.
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DragonFly BSD supports SCM_CREDS and SCM_RIGHTS, but only the first control
message is passed correctly while the second one isn't processed by the kernel.
This closes #599 issue on GitHub.
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A prototype stores linked application processes structures. When an
application process terminates, it's removed from the list. To avoid double
removal, the pointer to the next element should be set to NULL.
The issue was introduced in c8790d2a89bb.
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A prototype stores linked application processes structures. When an
application process terminates, it's removed from the list. To avoid double
removal, the pointer to the next element should be set to NULL.
The issue was introduced in c8790d2a89bb.
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In PHP, custom fastcgi_finish_request() and overloaded chdir() functions can be
invoked by an OPcache preloading script (it runs when php_module_startup() is
called in the app process setup handler). In this case, there was no runtime
context set so trying to access it caused a segmentation fault.
This closes #602 issue on GitHub.
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In PHP, custom fastcgi_finish_request() and overloaded chdir() functions can be
invoked by an OPcache preloading script (it runs when php_module_startup() is
called in the app process setup handler). In this case, there was no runtime
context set so trying to access it caused a segmentation fault.
This closes #602 issue on GitHub.
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The reference to the access_log structure is stored in the current
nxt_router_conf_t and the global nxt_router_t. When the reference is copied,
the reference counter should be adjusted accordingly.
This closes #593 issue on GitHub.
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The reference to the access_log structure is stored in the current
nxt_router_conf_t and the global nxt_router_t. When the reference is copied,
the reference counter should be adjusted accordingly.
This closes #593 issue on GitHub.
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The change record was incorectly merged in 43553aa72111.
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