Opened 4 years ago

Closed 4 years ago

#1156 closed defect (invalid)

Directive access_log needs parameter combined when using with parameter if

Reported by: mmattel@… Owned by:
Priority: minor Milestone:
Component: other Version: 1.9.x
Keywords: Cc:
uname -a: Linux 4.4.0-51-generic #72-Ubuntu SMP Thu Nov 24 18:29:54 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
nginx -V: nginx version: nginx/1.11.6
built by gcc 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4)
built with OpenSSL 1.0.2g 1 Mar 2016
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/ --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --with-cc-opt='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security' --with-ld-opt='-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now' --add-module=/opt/nginx-1.11.6/debian/modules/ngx_cache_purge


Creating a conditional access_log according the documentation with if causes an error when parameter combined is not explicitly set.

fail: access_log /path-to-log if=$loggable
works: access_log /path-to-log
works: access_log /path-to-log combined if=$loggable

According the documentation: "If the format is not specified then the predefined “combined” format is used." There is no mentioning for this parameter to be mandatory when using if. Because of predifined, I think this a bug.

Change History (1)

comment:1 by Maxim Dounin, 4 years ago

Resolution: invalid
Status: newclosed

Syntax of the access_log directive as specified in the documentation is as follows:

access_log path [format [buffer=size] [gzip[=level]] [flush=time] [if=condition]];

That is, format is only optional if there are no other parameters are used. This is needed to avoid possible misinterpretation of log format names as parameters and vice versa.

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