Working behind a proxy #205
Description
Hi,
It seems that it is not possible to use this library behind a proxy. I have a proxy that runs fine on my laptop but when I try to run it on a machine behind a proxy it looks as though it is unable to download a referenced schema:
uk.co.tpplc.middleware.ValidationException: com.github.fge.jsonschema.core.exceptions.ProcessingException: fatal: unable to dereference URI "http://json-schema.org/geo#"
level: "fatal"
uri: "http://json-schema.org/geo#"
exceptionMessage: "json-schema.org"
at uk.co.tpplc.middleware.Validator.validate(Validator.java:56)
at uk.co.tpplc.middleware.ValidatorTest.shouldReturnSchemaPointerForMissingFieldJson(ValidatorTest.java:196)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:27)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:262)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:84)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
Caused by: com.github.fge.jsonschema.core.exceptions.ProcessingException: fatal: unable to dereference URI "http://json-schema.org/geo#"
level: "fatal"
uri: "http://json-schema.org/geo#"
exceptionMessage: "json-schema.org"
at com.github.fge.jsonschema.core.load.URIManager.getContent(URIManager.java:115)
at com.github.fge.jsonschema.core.load.SchemaLoader$1.load(SchemaLoader.java:115)
at com.github.fge.jsonschema.core.load.SchemaLoader$1.load(SchemaLoader.java:109)
at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3524)
at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2317)
at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2280)
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2195)
at com.google.common.cache.LocalCache.get(LocalCache.java:3934)
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3938)
at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4821)
at com.github.fge.jsonschema.core.load.SchemaLoader.get(SchemaLoader.java:172)
at com.github.fge.jsonschema.core.load.RefResolver.rawProcess(RefResolver.java:114)
at com.github.fge.jsonschema.core.load.RefResolver.rawProcess(RefResolver.java:51)
at com.github.fge.jsonschema.core.processing.RawProcessor.process(RawProcessor.java:77)
at com.github.fge.jsonschema.core.processing.RawProcessor.process(RawProcessor.java:41)
at com.github.fge.jsonschema.core.processing.ProcessorChain$ProcessorMerger.process(ProcessorChain.java:189)
at com.github.fge.jsonschema.core.processing.ProcessingResult.of(ProcessingResult.java:79)
at com.github.fge.jsonschema.core.processing.CachingProcessor$1.load(CachingProcessor.java:128)
at com.github.fge.jsonschema.core.processing.CachingProcessor$1.load(CachingProcessor.java:120)
at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3524)
at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2317)
at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2280)
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2195)
at com.google.common.cache.LocalCache.get(LocalCache.java:3934)
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3938)
at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4821)
at com.github.fge.jsonschema.core.processing.CachingProcessor.process(CachingProcessor.java:109)
at com.github.fge.jsonschema.processors.validation.ValidationChain.process(ValidationChain.java:107)
at com.github.fge.jsonschema.processors.validation.ValidationChain.process(ValidationChain.java:57)
at com.github.fge.jsonschema.core.processing.ProcessorMap$Mapper.process(ProcessorMap.java:166)
at com.github.fge.jsonschema.core.processing.ProcessingResult.of(ProcessingResult.java:79)
at com.github.fge.jsonschema.core.processing.CachingProcessor$1.load(CachingProcessor.java:128)
at com.github.fge.jsonschema.core.processing.CachingProcessor$1.load(CachingProcessor.java:120)
at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3524)
at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2317)
at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2280)
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2195)
at com.google.common.cache.LocalCache.get(LocalCache.java:3934)
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3938)
at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4821)
at com.github.fge.jsonschema.core.processing.CachingProcessor.process(CachingProcessor.java:109)
at com.github.fge.jsonschema.processors.validation.InstanceValidator.process(InstanceValidator.java:110)
at com.github.fge.jsonschema.processors.validation.InstanceValidator.processObject(InstanceValidator.java:218)
at com.github.fge.jsonschema.processors.validation.InstanceValidator.process(InstanceValidator.java:151)
at com.github.fge.jsonschema.processors.validation.InstanceValidator.processArray(InstanceValidator.java:188)
at com.github.fge.jsonschema.processors.validation.InstanceValidator.process(InstanceValidator.java:149)
at com.github.fge.jsonschema.processors.validation.ValidationProcessor.process(ValidationProcessor.java:56)
at com.github.fge.jsonschema.processors.validation.ValidationProcessor.process(ValidationProcessor.java:34)
at com.github.fge.jsonschema.core.processing.ProcessingResult.of(ProcessingResult.java:79)
at com.github.fge.jsonschema.main.JsonSchema.doValidate(JsonSchema.java:76)
at com.github.fge.jsonschema.main.JsonSchema.validate(JsonSchema.java:109)
at uk.co.tpplc.middleware.Validator.validate(Validator.java:53)
... 36 more
I have managed to get around this issue by downloading the schema and referencing it locally. I intend to try creating a pull request to have a look and see if it is possible to add this functionality but I wanted to clarify whether or not the functionality already exists before doing so.
I have played around with the JsonSchemaFactory with creating a new builder and can see that it is possible to add a LoadingConfiguration which seemed like it might be the place to set some proxy config but it wasn't obvious where. If I were to try and work on adding this, is this where you would recommend I start looking?