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* The MIT License (MIT)
*
* Copyright (c) 2017 Vlad Martynenko <vladimir.martynenko.work@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import { PROFILING_DEBOUNCE_TIME } from "./magic-values";
import {
ValidityConfig
} from "./helpers";
/* An object which stores all validator functions
required to be executed during graphql request */
export const FieldValidationDefinitions: any = {};
/**
* Builds errors array, using validation results
*
* @param validity - an object injected to request at the beginning of the http call
* @param data - result of graphql call
*/
export function getResponseValidationResults(validity: any, data: any) {
if (data.errors || (validity && validity.___validationResults && validity.___validationResults.length)) {
const originalErrors = data.errors || [];
data.errors =
(Array.isArray(originalErrors) ? originalErrors : [originalErrors])
.map((err) => {
return processError(err, validity.config);
})
.concat(
validity.___validationResults.map(
(error: Error) => {
return {
message: processError(error, validity.config).message
};
})
);
}
}
/**
* Masks errors if requests, other way returns original graphql error object
*
* @param error - graphql error object
* @param {ValidityConfig} config - config - setup options for the wrapper function
* @returns {any} - graphql error object
*/
function processError(error: any, config: ValidityConfig) {
if (error.name === 'ValidityError' || error.message.indexOf('_Validity_') >= 0) {
error.message = error.message.slice(10);
return error;
}
if (config && config.wrapErrors) {
Eif (config.unhandledErrorWrapper) {
const result = config.unhandledErrorWrapper(error);
return {
message: result.message,
path: error.path,
location: error.location
};
}
}
return error;
}
/**
* Returns lists of graphql validation messages arrays from request object
*
* @param request - express request object
* @returns {validationResults: any[]} - list of validation result messages
*/
export function getValidationResults(validity: any) {
let validationResults = validity.___validationResults;
if (!validationResults) {
validity.___validationResults = [];
validationResults = validity.___validationResults;
}
return validationResults;
}
/**
* Return list of local and global validators
*
* @param field - field which will be validated
* @param {string} parentTypeName - name of the parent object where field belongs to
* @param validity - an object injected to request at the beginning of the http call
*
* @returns {validators: any[]}
* - list of local and global validator functions
*/
export function getValidators(
field: any,
parentTypeName: string,
validity: any
) {
let validators =
(
FieldValidationDefinitions['*']
|| []
).concat
(
FieldValidationDefinitions[field.type]
|| []
).concat
(
FieldValidationDefinitions[parentTypeName + ':' + field.name]
|| []
);
Eif (!validity.___globalValidationResultsCaptured) {
validity.___globalValidationResultsCaptured = true;
validators = validators.concat(FieldValidationDefinitions['$'] || []);
}
return validators;
}
/**
* Modifies express response with validation results
*
* @param req - express request
* @param data - response original data
* @param profilingResultHandler - profiling function
*
* @returns {string} - response modified data
*/
export function applyValidation(
req: any,
data: any,
profilingResultHandler: Function
) {
let result = JSON.parse(data);
const validity = req.__graphQLValidity;
getResponseValidationResults(validity, result);
setTimeout(() => {
if (validity && validity.___profilingData) {
const profilingData = validity.___profilingData;
profilingResultHandler(profilingData, req.__graphQLValidityRequestId);
}
}, PROFILING_DEBOUNCE_TIME);
return JSON.stringify(result);
} |