Hello.
We have a Spring boot app exposing a RESTful API that runs on embedded
Tomcat (latest versions) and uses logback-access (also latest 1.2.3).
Recently I noticed that access logs include raw binary content of
images/PDF files.
Example from logs:
> POST /projects/projectId/images HTTP/1.1 | status code: 200 | elapsed
time: 664 | request: GIF89a� d �[[ most content ommitted ]]g��� w���� ; |
response: {"id":"877f2338-293d-403b-99fb-09fc631ce7b3"}
> GET /projects/projectid/images/877f2338-293d-403b-99fb-09fc631ce7b3
HTTP/1.1 | status code: 200 | elapsed time: 538 | request: | response:
[IMAGE CONTENTS SUPPRESSED]
What's the best way to configure suppression of request and response bodies
(preferably based on content type)?
Looking at the code, image content suppression happens in
`ch.qos.logback.access.spi.AccessEvent#getResponseContent`, but it only
checks if content type starts with `image/`. I also do not see any code for
binary content suppression in
`ch.qos.logback.access.spi.AccessEvent#getRequestContent`.
I traced response image content suppression was added with this commit:
https://github.com/qos-ch/logback/commit/69290e182f8db6589eadd5a3c485a37255384893
(all the way back in 2007).
Our config:
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<filter class="ch.qos.logback.core.filter.EvaluatorFilter">
<evaluator class="ch.qos.logback.access.net.URLEvaluator">
<URL>/ping</URL>
</evaluator>
<OnMismatch>NEUTRAL</OnMismatch>
<OnMatch>DENY</OnMatch>
</filter>
<encoder>
<pattern>%requestURL | status code: %statusCode | elapsed
time: %elapsedTime | request: %magenta(%requestContent) | response:
%cyan(%responseContent)</pattern>
</encoder>
</appender>
<appender-ref ref="STDOUT"/>
</configuration>
Thanks,
Gediminas
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