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The variable was considered non-existent in the absence of any
valid_referers directives.
Given the following config snippet,
location / {
return 200 $invalid_referer;
}
location /referer {
valid_referers server_names;
}
"location /" should work identically and independently on other
"location /referer".
The fix is to always add the $invalid_referer variable as long
as the module is compiled in, as is done by other modules.
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Because of premature check the effective buffer size was 255 symbols
while the buffer is able to handle 256.
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This allows to approach "server_name" values specified below the
"valid_referers" directive when used within the "server_names" parameter, e.g.:
server_name example.org;
valid_referers server_names;
server_name example.com;
As a bonus, this fixes bogus error with "server_names" specified several times.
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The server_name regexes are normally compiled for case-sensitive matching.
This violates case-insensitive obligations in the referer module. To fix
this, the host string is converted to lower case before matching.
Previously server_name regex was executed against the whole referer string
after dropping the scheme part. This could led to an improper matching, e.g.:
server_name ~^localhost$;
valid_referers server_names;
Referer: http://localhost/index.html
It was changed to look only at the hostname part.
The server_name regexes are separated into another array to not clash with
regular regexes.
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When matching a compiled regex against value in the "Referer" header field,
the length was calculated incorrectly for strings that start from "https://".
This might cause matching to fail for regexes with end-of-line anchors.
Patch by Liangbin Li.
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This makes it accessible via dynamic lookup with ngx_http_get_variable()
from Perl, SSI, etc.
Patch by Yichun Zhang (agentzh).
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patch by Witold Filipczyk
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then .sub.domain.com was matched by .domain.com: wildcard names hash
was built incorrectly due to sorting order issue of "." vs "-".
They were sorted as
com.domain com.domain-some com.domain.sub
while they should be sorted as
com.domain com.domain.sub com.domain-some
for correct hash building
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*) Feature: the ngx_http_dav_module supports the MKCOL method.
*) Feature: the "create_full_put_path" directive.
*) Feature: the "$limit_rate" variable.
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*) Feature: the "limit_except" directive.
*) Feature: the "if" directive supports the "!~", "!~*", "-f", and
"!-f" operators.
*) Feature: the ngx_http_perl_module supports the $r->request_body
method.
*) Bugfix: in the ngx_http_addition_filter_module.
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*) Feature: the "restrict_host_names" directive was canceled.
*) Feature: the --with-cpu-opt=ppc64 configuration parameter.
*) Bugfix: on some condition the proxied connection with a client was
terminated prematurely.
Thanks to Vladimir Shutoff.
*) Bugfix: the "X-Accel-Limit-Rate" header line was not taken into
account if the request was redirected using the "X-Accel-Redirect"
header line.
*) Bugfix: the "post_action" directive ran only after a successful
completion of a request.
*) Bugfix: the proxied response body generated by the "post_action"
directive was transferred to a client.
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*) Change: the "variables_hash_max_size" and
"variables_hash_bucket_size" directives.
*) Feature: the $body_bytes_sent variable can be used not only in the
"log_format" directive.
*) Feature: the $ssl_protocol and $ssl_cipher variables.
*) Feature: the cache line size detection for widespread CPUs at start
time.
*) Feature: now the "accept_mutex" directive is supported using
fcntl(2) on platforms different from i386, amd64, sparc64, and ppc.
*) Feature: the "lock_file" directive and the --with-lock-path=PATH
autoconfiguration directive.
*) Bugfix: if the HTTPS protocol was used in the "proxy_pass" directive
then the requests with the body was not transferred.
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*) Feature: the "optimize_host_names" directive.
*) Bugfix: in using of the variables in the "path" and "alias"
directives.
*) Bugfix: the ngx_http_perl_module was incorrectly built on Linux and
Solaris.
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*) Feature: the ngx_http_perl_module supports the $r->args and
$r->unescape methods.
*) Feature: the method $r->query_string of ngx_http_perl_module was
canceled.
*) Bugfix: segmentation fault was occurred if the "none" or "blocked"
values was specified in the "valid_referers" directive; the bug had
appeared in 0.3.18.
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*) Feature: the ngx_http_perl_module.
*) Change: the "valid_referers" directive allows the referreres without
URI part.
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*) Feature: the "path" and "alias" directives support the variables.
*) Change: now the "valid_referers" directive again checks the URI part.
*) Bugfix: in SSI handling.
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*) Feature: the "server_names" directive supports the ".domain.tld"
names.
*) Feature: the "server_names" directive uses the hash for the
"*.domain.tld" names and more effective hash for usual names.
*) Change: the "server_names_hash_max_size" and
"server_names_hash_bucket_size" directives.
*) Change: the "server_names_hash" and "server_names_hash_threshold"
directives were canceled.
*) Feature: the "valid_referers" directive uses the hash site names.
*) Change: now the "valid_referers" directive checks the site names
only without the URI part.
*) Bugfix: some ".domain.tld" names incorrectly processed by the
ngx_http_map_module.
*) Bugfix: segmentation fault was occurred if configuration file did
not exist; the bug had appeared in 0.3.12.
*) Bugfix: on 64-bit platforms segmentation fault may occurred on
start; the bug had appeared in 0.3.16.
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*) Feature: the IMAP/POP3 proxy supports STARTTLS and STLS.
*) Bugfix: the IMAP/POP3 proxy did not work with the select, poll, and
/dev/poll methods.
*) Bugfix: in SSI handling.
*) Bugfix: now Solaris sendfilev() is not used to transfer the client
request body to FastCGI-server via the unix domain socket.
*) Bugfix: the "auth_basic" directive did not disable the
authorization; the bug had appeared in 0.3.11.
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*) Change: the "valid_referers" directive and the "$invalid_referer"
variable were moved to the new ngx_http_referer_module from the
ngx_http_rewrite_module.
*) Change: the "$apache_bytes_sent" variable name was changed to
"$body_bytes_sent".
*) Feature: the "$sent_http_..." variables.
*) Feature: the "if" directive supports the "=" and "!=" operations.
*) Feature: the "proxy_pass" directive supports the HTTPS protocol.
*) Feature: the "proxy_set_body" directive.
*) Feature: the "post_action" directive.
*) Feature: the ngx_http_empty_gif_module.
*) Feature: the "worker_cpu_affinity" directive for Linux.
*) Bugfix: the "rewrite" directive did not unescape URI part in
redirect, now it is unescaped except the %00-%25 and %7F-%FF
characters.
*) Bugfix: nginx could not be built by the icc 9.0 compiler.
*) Bugfix: if the SSI was enabled for zero size static file, then the
chunked response was encoded incorrectly.
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