51 lines
1.6 KiB
TypeScript
51 lines
1.6 KiB
TypeScript
import { getDirective, MapperKind, mapSchema } from '@graphql-tools/utils'
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import { GraphQLNonNull, GraphQLScalarType, GraphQLSchema } from 'graphql'
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import { SanitizedString } from './scalars'
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export const sanitizeDirectiveTransformer = (schema: GraphQLSchema) => {
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return mapSchema(schema, {
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[MapperKind.FIELD]: (fieldConfig) => {
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const sanitizeDirective = getDirective(
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schema,
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fieldConfig,
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'sanitize'
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)?.[0]
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if (!sanitizeDirective) {
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return fieldConfig
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}
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const maxLength = sanitizeDirective.maxLength as number | undefined
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const minLength = sanitizeDirective.minLength as number | undefined
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const allowedTags = sanitizeDirective.allowedTags as string[] | undefined
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const pattern = sanitizeDirective.pattern as string | undefined
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if (
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fieldConfig.type instanceof GraphQLNonNull &&
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fieldConfig.type.ofType instanceof GraphQLScalarType
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) {
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fieldConfig.type = new GraphQLNonNull(
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new SanitizedString(
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fieldConfig.type.ofType,
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allowedTags,
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maxLength,
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minLength,
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pattern
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)
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)
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} else if (fieldConfig.type instanceof GraphQLScalarType) {
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fieldConfig.type = new SanitizedString(
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fieldConfig.type,
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allowedTags,
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maxLength,
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minLength,
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pattern
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)
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} else {
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// eslint-disable-next-line @typescript-eslint/restrict-template-expressions
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throw new Error(`Not a scalar type: ${fieldConfig.type}`)
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}
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return fieldConfig
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},
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})
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}
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