I have looked at the reference.conf of akka-http-core-experimental
(1.0-M2) and found the following settings that should solve some of
these problems. But adding the configuration below as an
application.conf does not seem to make a difference WRT. parsing of
Uris. I still get a "400 Bad Request" for queries containing ";".
Any ideas?
application.conf:
akka.http {
parsing {
# Sets the strictness mode for parsing request target URIs.
# The following values are defined:
#
# `strict`: RFC3986-compliant URIs are required,
# a 400 response is triggered on violations
#
# `relaxed`: all visible 7-Bit ASCII chars are allowed
#
# `relaxed-with-raw-query`: like `relaxed` but additionally
# the URI query is not parsed, but delivered as one raw string
# as the `key` value of a single Query structure element.
#
uri-parsing-mode = relaxed-with-raw-query
# Enables/disables the logging of warning messages in case an incoming
# message (request or response) contains an HTTP header which cannot be
# parsed into its high-level model class due to incompatible syntax.
# Note that, independently of this settings, akka-http will accept messages
# with such headers as long as the message as a whole would still be legal
# under the HTTP specification even without this header.
# If a header cannot be parsed into a high-level model instance it will be
# provided as a `RawHeader`.
illegal-header-warnings = off
}
}
On Sat, Jan 31, 2015 at 6:27 PM, rklaehn <[email protected]> wrote:
> Here is an example of an URL that works fine without the proxy, but causes a
> parse error when going via the proxy:
>
> http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=34835.0;attach=633689
>
> curl
> "http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=34835.0;attach=633689";
>
> => lots of binary data
>
>
> curl --proxy 127.0.0.1
> "http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=34835.0;attach=633689";
>
> => Illegal request-target: Invalid input ';', expected '+', query-char, '%',
> '&' or 'EOI' (line 1, column 59)
>
>
> log:
> [WARN] [01/31/2015 18:25:05.165] [Proxy-akka.actor.default-dispatcher-23]
> [ActorSystem(Proxy)] Illegal request, responding with status '400 Bad
> Request': Illegal request-target: Invalid input ';', expected '+',
> query-char, '%', '&' or 'EOI' (line 1, column 59):
> http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=34835.0;attach=633689
>
>
> Am Samstag, 31. Januar 2015 17:46:19 UTC+1 schrieb rklaehn:
>>
>> Hi all,
>>
>> While playing around with akka-http, I wrote a minimal http proxy server:
>> https://gist.github.com/rklaehn/3aa3215046df2c0a7795
>>
>> To test it, I configured a browser with this as proxy and browsed some
>> popular news web pages that load a zillion things from ad servers,
>> trackers and the like.
>>
>> It works just fine, but I get a large number of warnings and the
>> occasional error in the log because apparently a lot of the
>> "secondary" traffic going over the proxy is not 100% correct according
>> to the HTTP spec. See some examples below.
>>
>> Is it possible to tell akka-http to ignore errors such as
>> IllegalResponseException and just pass through everything? I don't see
>> a single line of my own code in the stack traces, so I am a bit at a
>> loss how to approach this.
>>
>> Cheers,
>>
>> Rüdiger
>>
>> ---
>> Opening connection to weltonline01.webtrekk.net
>> [WARN] [01/31/2015 17:33:42.631]
>> [MinimalProxy-akka.actor.default-dispatcher-70]
>> [ActorSystem(MinimalProxy)] Illegal request header: Illegal 'cookie'
>> header: Invalid input ',', expected tchar, '\r', WSP or '=' (line 1,
>> column 32): C=1; cid=-6251207954767438390,0,0,0,0;
>> uid=-6251207954767438390
>> ^
>> Opening connection to track.adform.net
>> [WARN] [01/31/2015 17:33:42.679]
>> [MinimalProxy-akka.actor.default-dispatcher-56]
>> [ActorSystem(MinimalProxy)] Illegal response header: Illegal
>> 'content-type' header: Invalid input ':', expected tchar, '\r', WSP or
>> '/' (line 1, column 13): Content-type: image/gif; charset=utf-8
>> ^
>> [WARN] [01/31/2015 17:33:42.680]
>> [MinimalProxy-akka.actor.default-dispatcher-52]
>> [ActorSystem(MinimalProxy)] Explicitly set HTTP header 'content-type:
>> Content-type: image/gif; charset=utf-8' is ignored, illegal RawHeader
>> Opening connection to comcluster.cxense.com
>> [ERROR] [01/31/2015 17:33:42.716]
>> [MinimalProxy-akka.actor.default-dispatcher-78]
>> [akka://MinimalProxy/user/$a/flow-15752-broadcast] failure during
>> processing
>> akka.http.model.IllegalResponseException: Illegal character ' ' in header
>> name
>> at
>> akka.http.engine.client.HttpClient$$anonfun$2.applyOrElse(HttpClient.scala:89)
>> at
>> akka.http.engine.client.HttpClient$$anonfun$2.applyOrElse(HttpClient.scala:86)
>> at akka.stream.impl.fusing.Collect.onPush(Ops.scala:37)
>> ...
>
> --
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