207 lines
7.7 KiB
JavaScript
207 lines
7.7 KiB
JavaScript
|
dojo.provide("dojox.json.schema");
|
||
|
|
|
||
|
|
|
||
|
|
dojox.json.schema.validate = function(/*Any*/instance,/*Object*/schema){
|
||
|
|
// summary:
|
||
|
|
// To use the validator call this with an instance object and an optional schema object.
|
||
|
|
// If a schema is provided, it will be used to validate. If the instance object refers to a schema (self-validating),
|
||
|
|
// that schema will be used to validate and the schema parameter is not necessary (if both exist,
|
||
|
|
// both validations will occur).
|
||
|
|
// instance:
|
||
|
|
// The instance value/object to validate
|
||
|
|
// schema:
|
||
|
|
// The schema to use to validate
|
||
|
|
// description:
|
||
|
|
// The validate method will return an object with two properties:
|
||
|
|
// valid: A boolean indicating if the instance is valid by the schema
|
||
|
|
// errors: An array of validation errors. If there are no errors, then an
|
||
|
|
// empty list will be returned. A validation error will have two properties:
|
||
|
|
// property: which indicates which property had the error
|
||
|
|
// message: which indicates what the error was
|
||
|
|
//
|
||
|
|
return this._validate(instance,schema,false);
|
||
|
|
};
|
||
|
|
dojox.json.schema.checkPropertyChange = function(/*Any*/value,/*Object*/schema){
|
||
|
|
// summary:
|
||
|
|
// The checkPropertyChange method will check to see if an value can legally be in property with the given schema
|
||
|
|
// This is slightly different than the validate method in that it will fail if the schema is readonly and it will
|
||
|
|
// not check for self-validation, it is assumed that the passed in value is already internally valid.
|
||
|
|
// The checkPropertyChange method will return the same object type as validate, see JSONSchema.validate for
|
||
|
|
// information.
|
||
|
|
// value:
|
||
|
|
// The new instance value/object to check
|
||
|
|
// schema:
|
||
|
|
// The schema to use to validate
|
||
|
|
// return:
|
||
|
|
// see dojox.validate.jsonSchema.validate
|
||
|
|
//
|
||
|
|
return this._validate(value,schema,true);
|
||
|
|
};
|
||
|
|
dojox.json.schema.mustBeValid = function(result){
|
||
|
|
// summary:
|
||
|
|
// This checks to ensure that the result is valid and will throw an appropriate error message if it is not
|
||
|
|
// result: the result returned from checkPropertyChange or validate
|
||
|
|
if(!result.valid){
|
||
|
|
throw new Error(dojo.map(result.errors,function(error){return error.property + ' ' + error.message;}).join(","));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
dojox.json.schema._validate = function(/*Any*/instance,/*Object*/schema,/*Boolean*/ _changing){
|
||
|
|
|
||
|
|
var errors = [];
|
||
|
|
// validate a value against a property definition
|
||
|
|
function checkProp(value, schema, path,i){
|
||
|
|
if(typeof schema != 'object'){
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
path += path ? typeof i == 'number' ? '[' + i + ']' : typeof i == 'undefined' ? '' : '.' + i : i;
|
||
|
|
function addError(message){
|
||
|
|
errors.push({property:path,message:message});
|
||
|
|
}
|
||
|
|
if(_changing && schema.readonly){
|
||
|
|
addError("is a readonly field, it can not be changed");
|
||
|
|
}
|
||
|
|
if(schema instanceof Array){
|
||
|
|
if(!(value instanceof Array)){
|
||
|
|
return [{property:path,message:"An array tuple is required"}];
|
||
|
|
}
|
||
|
|
for(i =0; i < schema.length; i++){
|
||
|
|
errors.concat(checkProp(value[i],schema[i],path,i));
|
||
|
|
}
|
||
|
|
return errors;
|
||
|
|
}
|
||
|
|
if(schema['extends']){ // if it extends another schema, it must pass that schema as well
|
||
|
|
checkProp(value,schema['extends'],path,i);
|
||
|
|
}
|
||
|
|
// validate a value against a type definition
|
||
|
|
function checkType(type,value){
|
||
|
|
if(type){
|
||
|
|
if(typeof type == 'string' && type != 'any' &&
|
||
|
|
(type == 'null' ? value !== null : typeof value != type) &&
|
||
|
|
!(value instanceof Array && type == 'array') &&
|
||
|
|
!(type == 'integer' && value%1===0)){
|
||
|
|
return [{property:path,message:(typeof value) + " value found, but a " + type + " is required"}];
|
||
|
|
}
|
||
|
|
if(type instanceof Array){
|
||
|
|
var unionErrors=[];
|
||
|
|
for(var j = 0; j < type.length; j++){ // a union type
|
||
|
|
if(!(unionErrors=checkType(type[j],value)).length){
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if(unionErrors.length){
|
||
|
|
return unionErrors;
|
||
|
|
}
|
||
|
|
}else if(typeof type == 'object'){
|
||
|
|
checkProp(value,type,path);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return [];
|
||
|
|
}
|
||
|
|
if(value !== null){
|
||
|
|
if(value === undefined){
|
||
|
|
if(!schema.optional){
|
||
|
|
addError("is missing and it is not optional");
|
||
|
|
}
|
||
|
|
}else{
|
||
|
|
errors = errors.concat(checkType(schema.type,value));
|
||
|
|
if(schema.disallow && !checkType(schema.disallow,value).length){
|
||
|
|
addError(" disallowed value was matched");
|
||
|
|
}
|
||
|
|
if(value instanceof Array){
|
||
|
|
if(schema.items){
|
||
|
|
for(i=0,l=value.length; i<l; i++){
|
||
|
|
errors.concat(checkProp(value[i],schema.items,path,i));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if(schema.minItems && value.length < schema.minItems){
|
||
|
|
addError("There must be a minimum of " + schema.minItems + " in the array");
|
||
|
|
}
|
||
|
|
if(schema.maxItems && value.length > schema.maxItems){
|
||
|
|
addError("There must be a maximum of " + schema.maxItems + " in the array");
|
||
|
|
}
|
||
|
|
}else if(schema.properties && typeof value == 'object'){
|
||
|
|
errors.concat(checkObj(value,schema.properties,path,schema.additionalProperties));
|
||
|
|
}
|
||
|
|
if(schema.pattern && typeof value == 'string' && !value.match(schema.pattern)){
|
||
|
|
addError("does not match the regex pattern " + schema.pattern);
|
||
|
|
}
|
||
|
|
if(schema.maxLength && typeof value == 'string' && value.length > schema.maxLength){
|
||
|
|
addError("may only be " + schema.maxLength + " characters long");
|
||
|
|
}
|
||
|
|
if(schema.minLength && typeof value == 'string' && value.length < schema.minLength){
|
||
|
|
addError("must be at least " + schema.minLength + " characters long");
|
||
|
|
}
|
||
|
|
if(typeof schema.minimum !== undefined && typeof value == typeof schema.minimum &&
|
||
|
|
schema.minimum > value){
|
||
|
|
addError("must have a minimum value of " + schema.minimum);
|
||
|
|
}
|
||
|
|
if(typeof schema.maximum !== undefined && typeof value == typeof schema.maximum &&
|
||
|
|
schema.maximum < value){
|
||
|
|
addError("must have a maximum value of " + schema.maximum);
|
||
|
|
}
|
||
|
|
if(schema['enum']){
|
||
|
|
var enumer = schema['enum'];
|
||
|
|
l = enumer.length;
|
||
|
|
var found;
|
||
|
|
for(var j = 0; j < l; j++){
|
||
|
|
if(enumer[j]===value){
|
||
|
|
found=1;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if(!found){
|
||
|
|
addError("does not have a value in the enumeration " + enumer.join(", "));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if(typeof schema.maxDecimal == 'number' && (value * 10^schema.maxDecimal)%1){
|
||
|
|
addError("may only have " + schema.maxDecimal + " digits of decimal places");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
// validate an object against a schema
|
||
|
|
function checkObj(instance,objTypeDef,path,additionalProp){
|
||
|
|
|
||
|
|
if(typeof objTypeDef =='object'){
|
||
|
|
if(typeof instance != 'object' || instance instanceof Array){
|
||
|
|
errors.push({property:path,message:"an object is required"});
|
||
|
|
}
|
||
|
|
|
||
|
|
for(var i in objTypeDef){
|
||
|
|
if(objTypeDef.hasOwnProperty(i)){
|
||
|
|
var value = instance[i];
|
||
|
|
var propDef = objTypeDef[i];
|
||
|
|
checkProp(value,propDef,path,i);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for(i in instance){
|
||
|
|
if(instance.hasOwnProperty(i) && (i.charAt(0) != '_' || i.charAt(0) != '_') && objTypeDef && !objTypeDef[i] && additionalProp===false){
|
||
|
|
errors.push({property:path,message:(typeof value) + "The property " + i +
|
||
|
|
" is not defined in the schema and the schema does not allow additional properties"});
|
||
|
|
}
|
||
|
|
var requires = objTypeDef && objTypeDef[i] && objTypeDef[i].requires;
|
||
|
|
if(requires && !(requires in instance)){
|
||
|
|
errors.push({property:path,message:"the presence of the property " + i + " requires that " + requires + " also be present"});
|
||
|
|
}
|
||
|
|
value = instance[i];
|
||
|
|
if(objTypeDef && typeof objTypeDef == 'object' && !(i in objTypeDef)){
|
||
|
|
checkProp(value,additionalProp,path,i);
|
||
|
|
}
|
||
|
|
if(!_changing && value && value.$schema){
|
||
|
|
errors = errors.concat(checkProp(value,value.$schema,path,i));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return errors;
|
||
|
|
}
|
||
|
|
if(schema){
|
||
|
|
checkProp(instance,schema,'','');
|
||
|
|
}
|
||
|
|
if(!_changing && instance.$schema){
|
||
|
|
checkProp(instance,instance.$schema,'','');
|
||
|
|
}
|
||
|
|
return {valid:!errors.length,errors:errors};
|
||
|
|
};
|
||
|
|
|