Akka-Http how to deal with special characters in the URL (like %) - scala

In my akka http app I receive a lot of errors like this one:
Illegal request-target: Invalid input 'v', expected HEXDIG (line 1, column 72)
It happens when I simply add a '%' character to the URL. In this case akka exoects a hex value.
Is it possible to somehow 'clean up' or encode/ignore such characters?

For users of an API who got this error message and don't know how to solve it:
I had the same problem, with a URL that queries something from a third party database, one part of the URL was simply not correct and that caused this error message.
I think this error message is misleading since it sounds like you should encode the URL differently which is not the case at all, just check if the structure of the URL is correct.

Related

SOAP Web Service Client error, While consuming the service

I am getting this error while using SOAP web service client with axis 1. I had created stub from the wsdl file and tried to consume it then I got this error. wsdl is given to me by someone else.
error in msg parsing: xml was empty, did't parse!
below is the error message and stack trace for the same. Anyone can help.?
In order to fix the javax.activation.DataHandler issue you must add the JavaBeans Activation Framework activation.jar in your classpath.
In order to fix the javax.mail.internet.mimeMultipart issue you must add the Java Mail API mail.jar in your classpath.
The warning messages printed in your console shows that the above jars are not in the classpath.
There are several common reasons to receive the message:
error in msg parsing: xml was empty, did't parse!
The most obvious is that no message was sent. If you have some way of inspecting your transport channel, that would be worth looking at.
Also, the xml message could have been sent in an unexpected character set, e.g. A header declares it to be "Utf-8" but it is really "Win-1252", sometimes you can get away with that if you only use 7-bit ASCII characters, but anything in the 8-bit plane will cause it to bomb.
Also, the xml message could have had a byte order mark unexpectedly inserted at the beginning of the message.
Also, the xml message might not have the document declaration ( starting in the first byte of the message, that violates the specification, and often causes parsers to puke and claim that no message was found.
All things considered with this error message, the parser was not able to find a valid xml message that it could parse, so it didn't. You need to grab the data on the transport channel and figure out what exactly is wrong to resolve the issue.

Google Cloud Storage list objects with name containing "%" return 403 error

I am getting my objects by calling
https://<bucket>.storage.googleapis.com/?prefix=folder%2F<object name>%2F&delimiter=/&max-keys=1000
I have tried with other special characters like !, #, #, $, ^, &, *, (, ), etc.
For the other special characters I just encode them in the , and I get the response just fine.
For example, with object "!#" under folder, the url is:
https://<bucket>.storage.googleapis.com/?prefix=folder%2F%21%22%2F&delimiter=/&max-keys=1000
However, when I try with object names with "%" and encode the percent sign to "%25", I get the following error:
<?xml version='1.0' encoding='UTF-8'?><Error><Code>InvalidSecurity</Code> <Message>The provided security credentials are not valid.</Message><Details>Request was not signed or contained a malformed signature</Details></Error>
What could be causing this issue ?
Edit
So I have tried double encoding the percent sign such that '%' character becomes "%2525" in the request. However, in the response, the prefix is strangely "%25". After testing with more cases, it turns out a request is successful only when "%25" is followed by 2 characters both within the range of '0' and 'f', however, the response prefix would be wrong. For example, "%25ab" in the request would result in "%ab" in the response prefix.
I believe this is a service side bug: see https://issuetracker.google.com/issues/117932947
I think a workaround is to encode the percent twice. But this may start failing in the future when the bug is fixed.
The error message you're seeing is because you don't have enough permissions to access to your object.
If you're using an authentication method (APIkey, bearer, etc) make sure that they have the needed Roles for GCS.
However, I can see that you're calling the objects just as a GET request. Try to Make your objects public and try it again with that encoding (%25). It should work.
Hope this is helpful!

Spring cloud gateway uri decoding failing

I wrote a gateway application using Spring cloud Greenwich binaries. I'm seeing issues when special characters are present in URL. The request fails with below exception in Spring gateway when request URI contains special characters.
localhost:8080/myresource/WG_splchar_%26%5E%26%25%5E%26%23%25%24%5E%26%25%26*%25%2B)!%24%23%24%25%26%5E_new
When I hit above url, Spring fails with below exception. I'm not able to figure out why it's an invalid sequence and how things like these can be handled.
java.lang.IllegalArgumentException: Invalid encoded sequence "%^&#%$^&%&*%+)!$#$%&^_new"
at org.springframework.util.StringUtils.uriDecode(StringUtils.java:741) ~[spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.http.server.DefaultPathContainer.parsePathSegment(DefaultPathContainer.java:126) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.http.server.DefaultPathContainer.createFromUrlPath(DefaultPathContainer.java:111) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.http.server.PathContainer.parsePath(PathContainer.java:76) ~[spring-web-5.1.4.RELEASE.jar:5.1.4.RELEASE]
at org.springframework.cloud.gateway.handler.predicate.PathRoutePredicateFactory.lambda$apply$2(PathRoutePredicateFactory.java:79) ~[spring-cloud-gateway-core-2.1.0.RC3.jar:2.1.0.RC3]
at org.springframework.cloud.gateway.support.ServerWebExchangeUtils.lambda$toAsyncPredicate$1(ServerWebExchangeUtils.java:128) ~[spring-cloud-gateway-core-2.1.0.RC3.jar:2.1.0.RC3]
at org.springframework.cloud.gateway.handler.AsyncPredicate.lambda$and$1(AsyncPredicate.java:35) ~[spring-cloud-gateway-core-2.1.0.RC3.jar:2.1.0.RC3]
at org.springframework.cloud.gateway.handler.RoutePredicateHandlerMapping.lambda$null$2(RoutePredicateHandlerMapping.java:112) ~[spring-cloud-gateway-core-2.1.0.RC3.jar:2.1.0.RC3]
at reactor.core.publisher.MonoFilterWhen$MonoFilterWhenMain.onNext(MonoFilterWhen.java:116) [reactor-core-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2070) [reactor-core-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at reactor.core.publisher.MonoFilterWhen$MonoFilterWhenMain.onSubscribe(MonoFilterWhen.java:103) [reactor-core-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:54) [reactor-core-3.2.5.RELEASE.jar:3.2.5.RELEASE]
at reactor.core.publisher.MonoFilterWhen.subscribe(MonoFilterWhen.java:56) [reactor-core-3.2.5.RELEASE.jar:3.2.5.RELEASE]
I answered the other question already and don't feel like retyping. The spirit of the answer is the exact same.
Write a unit test exercising this method off of the Spring cloud utils. This is what's breaking. You can try passing in more or less of the string you're concerned about to find where the breakage is. Use a binary search to figure out what's broken. Make sure you don't split the string in the middle of an encoded character or else you'll give yourself a false positive. When it says you have an invalid sequence I would expect you have something like %99 where 99 is does not map to any valid character (I'm just making one up)
https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/util/StringUtils.html#uriDecode-java.lang.String-java.nio.charset.Charset-
As an aside
Where is this encoded string coming from? Did someone at your company create their own solution to encode this string to begin with? Are you accepting user data? It's VERY POSSIBLE that whomever is responsible for producing this string encoded it incorrectly by homerolling their own encoder.
ALTERNATIVELY
spring.cloud.gateway.routes[7].predicates[0]=Path=/test/{testId}/test1/test_%26%5E%26%25%5E%26%25%26*%25%2B)!
When I look at this I see a path that is already encoded. For example, you've taken your ampersand & character and replaced it with %26
Have you tried inputting a path that is NOT already encoded?
For example
spring.cloud.gateway.routes[7].predicates[0]=Path=/test/{testId}/test1/test_&^&%^ < I only partially decoded it by hand using this chart. https://www.w3schools.com/tags/ref_urlencode.asp

How to fix rejecting invalid message: quickfix.IncorrectDataFormat

I have a QuickFIX initiator getting 1.23E-6 in tag 270 from market data. Then I saw QuickFIX/J throw the following error:
Rejecting invalid message: quickfix.IncorrectDataFormat: Incorrect data format for value, field=270
Any idea how to avoid the rejection and parse the correct value?
I also receive the scientific format of number from my 35=8 message in tag 44 (price), but I could just getString then convert them into BigDecimal with no issue.
The real problem here is that your counterparty should not be sending a scientific-notation value in that field. The field has type "Price", and per spec, that should be a whole or decimal number, thus that's what the QF engine is validating.
So, I don't know who your counterparty is, but maybe you want to check with their support and see if this might be a legit bug on their end.
(I can't explain why your 35=8/tag-44 message is being accepted. There must be a detail to your situation that I'm not aware of.)
If you need to work around this anyway: An easy cheat way to make the engine accept this message is to simply change the field's type to "string" in your Data Dictionary xml file. Of course, that will require you to always explicitly convert the string to BigDecimal, but it sounds like you will not have a problem with that.

How to deal with Facebook thread IDs that contain forward slashes

When requesting a list of a users threads through https://graph.facebook.com/me/threads some of the threads are coming through with a forward slash character in the ID.
For example:
"id": "t_Cb0/atPMZaJw/cUuNtLW8B",
However trying to request this thread through https://graph.facebook.com/t_Cb0/atPMZaJw/cUuNtLW8B obviously fails due to the forward slashes
The error specifically returned is:
"message": "Unknown path components: /atPMZaJw/cUuNtLW8B"
I tried escaping the forward slashes with %2F but returns the same error, how can these be dealt with?
There are bug reports already about this, to
workaround: https://graph.facebook.com/?ids=atPMZaJw%2FcUuNtLW8B should work (i.e pass the escaped string in the 'id' or 'ids' parameter instead of as part of the request path)