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Merge pull request #136 from NeedleInAJayStack/feature/custom-validat…
…ions Adds Custom Validation Rules
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87 changes: 87 additions & 0 deletions
87
Sources/GraphQL/Validation/Rules/Custom/NoDeprecatedCustomRule.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
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| /** | ||
| * No deprecated | ||
| * | ||
| * A GraphQL document is only valid if all selected fields and all used enum values have not been | ||
| * deprecated. | ||
| * | ||
| * Note: This rule is optional and is not part of the Validation section of the GraphQL | ||
| * Specification. The main purpose of this rule is detection of deprecated usages and not | ||
| * necessarily to forbid their use when querying a service. | ||
| */ | ||
| public func NoDeprecatedCustomRule(context: ValidationContext) -> Visitor { | ||
| return Visitor( | ||
| enter: { node, _, _, _, _ in | ||
| if let node = node as? Field { | ||
| if | ||
| let fieldDef = context.fieldDef, | ||
| let deprecationReason = fieldDef.deprecationReason, | ||
| let parentType = context.parentType | ||
| { | ||
| context.report( | ||
| error: GraphQLError( | ||
| message: "The field \(parentType.name).\(fieldDef.name) is deprecated. \(deprecationReason)", | ||
| nodes: [node] | ||
| ) | ||
| ) | ||
| } | ||
| } | ||
| if let node = node as? Argument { | ||
| if | ||
| let argDef = context.argument, | ||
| let deprecationReason = argDef.deprecationReason | ||
| { | ||
| if let directiveDef = context.typeInfo.directive { | ||
| context.report( | ||
| error: GraphQLError( | ||
| message: "Directive \"@\(directiveDef.name)\" argument \"\(argDef.name)\" is deprecated. \(deprecationReason)", | ||
| nodes: [node] | ||
| ) | ||
| ) | ||
| } else if | ||
| let fieldDef = context.fieldDef, | ||
| let parentType = context.parentType | ||
| { | ||
| context.report( | ||
| error: GraphQLError( | ||
| message: "Field \"\(parentType.name).\(fieldDef.name)\" argument \"\(argDef.name)\" is deprecated. \(deprecationReason)", | ||
| nodes: [node] | ||
| ) | ||
| ) | ||
| } | ||
| } | ||
| } | ||
| if let node = node as? ObjectField { | ||
| let inputObjectDef = context.parentInputType as? GraphQLInputObjectType | ||
|
|
||
| if | ||
| let inputObjectDef = context.parentInputType as? GraphQLInputObjectType, | ||
| let inputFieldDef = inputObjectDef.fields[node.name.value], | ||
| let deprecationReason = inputFieldDef.deprecationReason | ||
| { | ||
| context.report( | ||
| error: GraphQLError( | ||
| message: "The input field \(inputObjectDef.name).\(inputFieldDef.name) is deprecated. \(deprecationReason)", | ||
| nodes: [node] | ||
| ) | ||
| ) | ||
| } | ||
| } | ||
| if let node = node as? EnumValue { | ||
| if | ||
| let enumValueDef = context.typeInfo.enumValue, | ||
| let deprecationReason = enumValueDef.deprecationReason, | ||
| let enumTypeDef = getNamedType(type: context.inputType) | ||
| { | ||
| context.report( | ||
| error: GraphQLError( | ||
| message: "The enum value \"\(enumTypeDef.name).\(enumValueDef.name)\" is deprecated. \(deprecationReason)", | ||
| nodes: [node] | ||
| ) | ||
| ) | ||
| } | ||
| } | ||
| return .continue | ||
| } | ||
| ) | ||
| } |
31 changes: 31 additions & 0 deletions
31
Sources/GraphQL/Validation/Rules/Custom/NoSchemaIntrospectionCustomRule.swift
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,31 @@ | ||
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| /** | ||
| * Prohibit introspection queries | ||
| * | ||
| * A GraphQL document is only valid if all fields selected are not fields that | ||
| * return an introspection type. | ||
| * | ||
| * Note: This rule is optional and is not part of the Validation section of the | ||
| * GraphQL Specification. This rule effectively disables introspection, which | ||
| * does not reflect best practices and should only be done if absolutely necessary. | ||
| */ | ||
| public func NoSchemaIntrospectionCustomRule(context: ValidationContext) -> Visitor { | ||
| return Visitor( | ||
| enter: { node, _, _, _, _ in | ||
| if let node = node as? Field { | ||
| if | ||
| let type = getNamedType(type: context.type), | ||
| isIntrospectionType(type: type) | ||
| { | ||
| context.report( | ||
| error: GraphQLError( | ||
| message: "GraphQL introspection has been disabled, but the requested query contained the field \(node.name.value)", | ||
| nodes: [node] | ||
| ) | ||
| ) | ||
| } | ||
| } | ||
| return .continue | ||
| } | ||
| ) | ||
| } |
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