homebridge-config-ui-x
Version:
A web based management, configuration and control platform for Homebridge
341 lines (339 loc) • 19 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var ValidationError_1 = require("./ValidationError");
var MetadataStorage_1 = require("../metadata/MetadataStorage");
var container_1 = require("../container");
var ValidationTypes_1 = require("./ValidationTypes");
var ValidationUtils_1 = require("./ValidationUtils");
var utils_1 = require("../utils");
/**
* Executes validation over given object.
*/
var ValidationExecutor = /** @class */ (function () {
// -------------------------------------------------------------------------
// Constructor
// -------------------------------------------------------------------------
function ValidationExecutor(validator, validatorOptions) {
this.validator = validator;
this.validatorOptions = validatorOptions;
// -------------------------------------------------------------------------
// Properties
// -------------------------------------------------------------------------
this.awaitingPromises = [];
this.ignoreAsyncValidations = false;
// -------------------------------------------------------------------------
// Private Properties
// -------------------------------------------------------------------------
this.metadataStorage = container_1.getFromContainer(MetadataStorage_1.MetadataStorage);
}
// -------------------------------------------------------------------------
// Public Methods
// -------------------------------------------------------------------------
ValidationExecutor.prototype.execute = function (object, targetSchema, validationErrors) {
var _this = this;
/**
* If there is no metadata registered it means possibly the dependencies are not flatterned and
* more than one instance is used.
*
* TODO: This needs proper handling, forcing to use the same container or some other proper solution.
*/
if (!this.metadataStorage.hasValidationMetaData) {
console.warn("No metadata found. There is more than once class-validator version installed probably. You need to flatten your dependencies.");
}
var groups = this.validatorOptions ? this.validatorOptions.groups : undefined;
var targetMetadatas = this.metadataStorage.getTargetValidationMetadatas(object.constructor, targetSchema, groups);
var groupedMetadatas = this.metadataStorage.groupByPropertyName(targetMetadatas);
if (this.validatorOptions && this.validatorOptions.forbidUnknownValues && !targetMetadatas.length) {
var validationError = new ValidationError_1.ValidationError();
if (!this.validatorOptions ||
!this.validatorOptions.validationError ||
this.validatorOptions.validationError.target === undefined ||
this.validatorOptions.validationError.target === true)
validationError.target = object;
validationError.value = undefined;
validationError.property = undefined;
validationError.children = [];
validationError.constraints = { unknownValue: "an unknown value was passed to the validate function" };
validationErrors.push(validationError);
return;
}
if (this.validatorOptions && this.validatorOptions.whitelist)
this.whitelist(object, groupedMetadatas, validationErrors);
// General validation
Object.keys(groupedMetadatas).forEach(function (propertyName) {
var value = object[propertyName];
var definedMetadatas = groupedMetadatas[propertyName].filter(function (metadata) { return metadata.type === ValidationTypes_1.ValidationTypes.IS_DEFINED; });
var metadatas = groupedMetadatas[propertyName].filter(function (metadata) { return metadata.type !== ValidationTypes_1.ValidationTypes.IS_DEFINED && metadata.type !== ValidationTypes_1.ValidationTypes.WHITELIST; });
if (value instanceof Promise && metadatas.find(function (metadata) { return metadata.type === ValidationTypes_1.ValidationTypes.PROMISE_VALIDATION; })) {
_this.awaitingPromises.push(value.then(function (resolvedValue) {
_this.performValidations(object, resolvedValue, propertyName, definedMetadatas, metadatas, validationErrors);
}));
}
else {
_this.performValidations(object, value, propertyName, definedMetadatas, metadatas, validationErrors);
}
});
};
ValidationExecutor.prototype.whitelist = function (object, groupedMetadatas, validationErrors) {
var notAllowedProperties = [];
Object.keys(object).forEach(function (propertyName) {
// does this property have no metadata?
if (!groupedMetadatas[propertyName] || groupedMetadatas[propertyName].length === 0)
notAllowedProperties.push(propertyName);
});
if (notAllowedProperties.length > 0) {
if (this.validatorOptions && this.validatorOptions.forbidNonWhitelisted) {
// throw errors
notAllowedProperties.forEach(function (property) {
var _a;
validationErrors.push({
target: object, property: property, value: object[property], children: undefined,
constraints: (_a = {}, _a[ValidationTypes_1.ValidationTypes.WHITELIST] = "property " + property + " should not exist", _a)
});
});
}
else {
// strip non allowed properties
notAllowedProperties.forEach(function (property) { return delete object[property]; });
}
}
};
ValidationExecutor.prototype.stripEmptyErrors = function (errors) {
var _this = this;
return errors.filter(function (error) {
if (error.children) {
error.children = _this.stripEmptyErrors(error.children);
}
if (Object.keys(error.constraints).length === 0) {
if (error.children.length === 0) {
return false;
}
else {
delete error.constraints;
}
}
return true;
});
};
// -------------------------------------------------------------------------
// Private Methods
// -------------------------------------------------------------------------
ValidationExecutor.prototype.performValidations = function (object, value, propertyName, definedMetadatas, metadatas, validationErrors) {
var customValidationMetadatas = metadatas.filter(function (metadata) { return metadata.type === ValidationTypes_1.ValidationTypes.CUSTOM_VALIDATION; });
var nestedValidationMetadatas = metadatas.filter(function (metadata) { return metadata.type === ValidationTypes_1.ValidationTypes.NESTED_VALIDATION; });
var conditionalValidationMetadatas = metadatas.filter(function (metadata) { return metadata.type === ValidationTypes_1.ValidationTypes.CONDITIONAL_VALIDATION; });
var validationError = this.generateValidationError(object, value, propertyName);
validationErrors.push(validationError);
var canValidate = this.conditionalValidations(object, value, conditionalValidationMetadatas);
if (!canValidate) {
return;
}
// handle IS_DEFINED validation type the special way - it should work no matter skipUndefinedProperties/skipMissingProperties is set or not
this.defaultValidations(object, value, definedMetadatas, validationError.constraints);
if (value === undefined && this.validatorOptions && this.validatorOptions.skipUndefinedProperties === true) {
return;
}
if (value === null && this.validatorOptions && this.validatorOptions.skipNullProperties === true) {
return;
}
if ((value === null || value === undefined) && this.validatorOptions && this.validatorOptions.skipMissingProperties === true) {
return;
}
this.defaultValidations(object, value, metadatas, validationError.constraints);
this.customValidations(object, value, customValidationMetadatas, validationError.constraints);
this.nestedValidations(value, nestedValidationMetadatas, validationError.children);
this.mapContexts(object, value, metadatas, validationError);
};
ValidationExecutor.prototype.generateValidationError = function (object, value, propertyName) {
var validationError = new ValidationError_1.ValidationError();
if (!this.validatorOptions ||
!this.validatorOptions.validationError ||
this.validatorOptions.validationError.target === undefined ||
this.validatorOptions.validationError.target === true)
validationError.target = object;
if (!this.validatorOptions ||
!this.validatorOptions.validationError ||
this.validatorOptions.validationError.value === undefined ||
this.validatorOptions.validationError.value === true)
validationError.value = value;
validationError.property = propertyName;
validationError.children = [];
validationError.constraints = {};
return validationError;
};
ValidationExecutor.prototype.conditionalValidations = function (object, value, metadatas) {
return metadatas
.map(function (metadata) { return metadata.constraints[0](object, value); })
.reduce(function (resultA, resultB) { return resultA && resultB; }, true);
};
ValidationExecutor.prototype.defaultValidations = function (object, value, metadatas, errorMap) {
var _this = this;
return metadatas
.filter(function (metadata) {
if (metadata.each) {
if (value instanceof Array || value instanceof Set || value instanceof Map) {
var arrayValue = utils_1.convertToArray(value);
return !arrayValue.every(function (subValue) { return _this.validator.validateValueByMetadata(subValue, metadata); });
}
}
else {
return !_this.validator.validateValueByMetadata(value, metadata);
}
})
.forEach(function (metadata) {
var _a = _this.createValidationError(object, value, metadata), key = _a[0], message = _a[1];
errorMap[key] = message;
});
};
ValidationExecutor.prototype.customValidations = function (object, value, metadatas, errorMap) {
var _this = this;
metadatas.forEach(function (metadata) {
container_1.getFromContainer(MetadataStorage_1.MetadataStorage)
.getTargetValidatorConstraints(metadata.constraintCls)
.forEach(function (customConstraintMetadata) {
if (customConstraintMetadata.async && _this.ignoreAsyncValidations)
return;
var validationArguments = {
targetName: object.constructor ? object.constructor.name : undefined,
property: metadata.propertyName,
object: object,
value: value,
constraints: metadata.constraints
};
if (!metadata.each || !(value instanceof Array || value instanceof Set || value instanceof Map)) {
var validatedValue = customConstraintMetadata.instance.validate(value, validationArguments);
if (utils_1.isPromise(validatedValue)) {
var promise = validatedValue.then(function (isValid) {
if (!isValid) {
var _a = _this.createValidationError(object, value, metadata, customConstraintMetadata), type = _a[0], message = _a[1];
errorMap[type] = message;
}
});
_this.awaitingPromises.push(promise);
}
else {
if (!validatedValue) {
var _a = _this.createValidationError(object, value, metadata, customConstraintMetadata), type = _a[0], message = _a[1];
errorMap[type] = message;
}
}
return;
}
// convert set and map into array
var arrayValue = utils_1.convertToArray(value);
// Validation needs to be applied to each array item
var validatedSubValues = arrayValue.map(function (subValue) { return customConstraintMetadata.instance.validate(subValue, validationArguments); });
var validationIsAsync = validatedSubValues
.some(function (validatedSubValue) { return utils_1.isPromise(validatedSubValue); });
if (validationIsAsync) {
// Wrap plain values (if any) in promises, so that all are async
var asyncValidatedSubValues = validatedSubValues
.map(function (validatedSubValue) { return utils_1.isPromise(validatedSubValue) ? validatedSubValue : Promise.resolve(validatedSubValue); });
var asyncValidationIsFinishedPromise = Promise.all(asyncValidatedSubValues)
.then(function (flatValidatedValues) {
var validationResult = flatValidatedValues.every(function (isValid) { return isValid; });
if (!validationResult) {
var _a = _this.createValidationError(object, value, metadata, customConstraintMetadata), type = _a[0], message = _a[1];
errorMap[type] = message;
}
});
_this.awaitingPromises.push(asyncValidationIsFinishedPromise);
return;
}
var validationResult = validatedSubValues.every(function (isValid) { return isValid; });
if (!validationResult) {
var _b = _this.createValidationError(object, value, metadata, customConstraintMetadata), type = _b[0], message = _b[1];
errorMap[type] = message;
}
});
});
};
ValidationExecutor.prototype.nestedPromiseValidations = function (value, metadatas, errors) {
var _this = this;
if (!(value instanceof Promise)) {
return;
}
this.awaitingPromises.push(value.then(function (resolvedValue) { return _this.nestedValidations(resolvedValue, metadatas, errors); }));
};
ValidationExecutor.prototype.nestedValidations = function (value, metadatas, errors) {
var _this = this;
if (value === void 0) {
return;
}
metadatas.forEach(function (metadata) {
var _a;
if (metadata.type !== ValidationTypes_1.ValidationTypes.NESTED_VALIDATION &&
metadata.type !== ValidationTypes_1.ValidationTypes.PROMISE_VALIDATION) {
return;
}
var targetSchema = typeof metadata.target === "string" ? metadata.target : undefined;
if (value instanceof Array || value instanceof Set || value instanceof Map) {
// Treats Set as an array - as index of Set value is value itself and it is common case to have Object as value
var arrayLikeValue = value instanceof Set ? Array.from(value) : value;
arrayLikeValue.forEach(function (subValue, index) {
var validationError = _this.generateValidationError(value, subValue, index.toString());
errors.push(validationError);
_this.execute(subValue, targetSchema, validationError.children);
});
}
else if (value instanceof Object) {
_this.execute(value, targetSchema, errors);
}
else {
var error = new ValidationError_1.ValidationError();
error.value = value;
error.property = metadata.propertyName;
error.target = metadata.target;
var _b = _this.createValidationError(metadata.target, value, metadata), type = _b[0], message = _b[1];
error.constraints = (_a = {},
_a[type] = message,
_a);
errors.push(error);
}
});
};
ValidationExecutor.prototype.mapContexts = function (object, value, metadatas, error) {
var _this = this;
return metadatas
.forEach(function (metadata) {
if (metadata.context) {
var type = _this.getConstraintType(metadata);
if (error.constraints[type]) {
if (!error.contexts) {
error.contexts = {};
}
error.contexts[type] = Object.assign((error.contexts[type] || {}), metadata.context);
}
}
});
};
ValidationExecutor.prototype.createValidationError = function (object, value, metadata, customValidatorMetadata) {
var targetName = object.constructor ? object.constructor.name : undefined;
var type = this.getConstraintType(metadata, customValidatorMetadata);
var validationArguments = {
targetName: targetName,
property: metadata.propertyName,
object: object,
value: value,
constraints: metadata.constraints
};
var message = metadata.message;
if (!metadata.message &&
(!this.validatorOptions || (this.validatorOptions && !this.validatorOptions.dismissDefaultMessages))) {
if (customValidatorMetadata && customValidatorMetadata.instance.defaultMessage instanceof Function) {
message = customValidatorMetadata.instance.defaultMessage(validationArguments);
}
if (!message)
message = ValidationTypes_1.ValidationTypes.getMessage(type, metadata.each);
}
var messageString = ValidationUtils_1.ValidationUtils.replaceMessageSpecialTokens(message, validationArguments);
return [type, messageString];
};
ValidationExecutor.prototype.getConstraintType = function (metadata, customValidatorMetadata) {
var type = customValidatorMetadata && customValidatorMetadata.name ? customValidatorMetadata.name : metadata.type;
return type;
};
return ValidationExecutor;
}());
exports.ValidationExecutor = ValidationExecutor;
//# sourceMappingURL=ValidationExecutor.js.map