Any way to modify graphql-java Denial of Service protection limits?

[mafigi]

Hi everybody.

I'm trying to generate the code using a giant schema, which causes issues with DOS protection with following error:

graphql.parser.exceptions.ParseCancelledTooManyCharsException: More than 1,048,576 characters have been presented. To prevent Denial Of Service attacks, parsing has been cancelled. at graphql.parser.Parser.lambda$setupSafeTokenReader$3(Parser.java:333) at graphql.parser.SafeTokenReader.checkHowMany(SafeTokenReader.java:36) at graphql.parser.SafeTokenReader.read(SafeTokenReader.java:57) at graphql.org.antlr.v4.runtime.CharStreams.fromReader(CharStreams.java:196) at graphql.org.antlr.v4.runtime.CharStreams.fromReader(CharStreams.java:185) at graphql.parser.Parser.setupCharStream(Parser.java:342) at graphql.parser.Parser.parseImpl(Parser.java:269) at graphql.parser.Parser.parseDocumentImpl(Parser.java:228) at graphql.parser.Parser.parseDocument(Parser.java:156) at com.kobylynskyi.graphql.codegen.parser.GraphQLDocumentParser.readDocument(GraphQLDocumentParser.java:155) at com.kobylynskyi.graphql.codegen.parser.GraphQLDocumentParser.getDocumentFromSchemas(GraphQLDocumentParser.java:57) at com.kobylynskyi.graphql.codegen.GraphQLCodegen.generate(GraphQLCodegen.java:150) at io.github.kobylynskyi.graphql.codegen.gradle.GraphQLCodegenGradleTask.generate(GraphQLCodegenGradleTask.java:213)

Is there any way to increase the character count limit?

[jxnu-liguobin]

Previously, we divided gql into multiple files based on business modules and automatically merged them upon startup, But at that time, we didn't use this plugin

[mafigi]

Ok, I've found the solution:

First import ParserOptions from graphql-java:

import graphql.parser.ParserOptions

And then in the code generation task add following config:

doFirst {
        ParserOptions.setDefaultParserOptions(
                ParserOptions.newParserOptions()
                        .maxTokens(<YOUR_MAX_TOKENS_HERE>) 
                        .maxCharacters(<YOUR_MAX_CHARACTERS_HERE>)
                        .build());
    }