1 | define(["dojo/_base/kernel", "dojox", "dojo/_base/array"], function(dojo, dojox){ |
---|
2 | |
---|
3 | dojo.getObject("json.schema", true, dojox); |
---|
4 | |
---|
5 | |
---|
6 | dojox.json.schema.validate = function(/*Any*/instance,/*Object*/schema){ |
---|
7 | // summary: |
---|
8 | // To use the validator call this with an instance object and an optional schema object. |
---|
9 | // If a schema is provided, it will be used to validate. If the instance object refers to a schema (self-validating), |
---|
10 | // that schema will be used to validate and the schema parameter is not necessary (if both exist, |
---|
11 | // both validations will occur). |
---|
12 | // instance: |
---|
13 | // The instance value/object to validate |
---|
14 | // schema: |
---|
15 | // The schema to use to validate |
---|
16 | // description: |
---|
17 | // The validate method will return an object with two properties: |
---|
18 | // |
---|
19 | // - valid: A boolean indicating if the instance is valid by the schema |
---|
20 | // - errors: An array of validation errors. If there are no errors, then an |
---|
21 | // empty list will be returned. A validation error will have two properties: |
---|
22 | // - property: which indicates which property had the error |
---|
23 | // - message: which indicates what the error was |
---|
24 | |
---|
25 | return this._validate(instance,schema,false); |
---|
26 | }; |
---|
27 | dojox.json.schema.checkPropertyChange = function(/*Any*/value,/*Object*/schema, /*String*/ property){ |
---|
28 | // summary: |
---|
29 | // The checkPropertyChange method will check to see if an value can legally be in property with the given schema |
---|
30 | // This is slightly different than the validate method in that it will fail if the schema is readonly and it will |
---|
31 | // not check for self-validation, it is assumed that the passed in value is already internally valid. |
---|
32 | // The checkPropertyChange method will return the same object type as validate, see JSONSchema.validate for |
---|
33 | // information. |
---|
34 | // value: |
---|
35 | // The new instance value/object to check |
---|
36 | // schema: |
---|
37 | // The schema to use to validate |
---|
38 | // returns: |
---|
39 | // see dojox.validate.jsonSchema.validate |
---|
40 | |
---|
41 | return this._validate(value,schema, property || "property"); |
---|
42 | }; |
---|
43 | dojox.json.schema.mustBeValid = function(result){ |
---|
44 | // summary: |
---|
45 | // This checks to ensure that the result is valid and will throw an appropriate error message if it is not |
---|
46 | // result: the result returned from checkPropertyChange or validate |
---|
47 | if(!result.valid){ |
---|
48 | throw new TypeError(dojo.map(result.errors,function(error){return "for property " + error.property + ': ' + error.message;}).join(", ")); |
---|
49 | } |
---|
50 | }; |
---|
51 | dojox.json.schema._validate = function(/*Any*/instance,/*Object*/schema,/*Boolean*/ _changing){ |
---|
52 | |
---|
53 | var errors = []; |
---|
54 | // validate a value against a property definition |
---|
55 | function checkProp(value, schema, path,i){ |
---|
56 | var l; |
---|
57 | path += path ? typeof i == 'number' ? '[' + i + ']' : typeof i == 'undefined' ? '' : '.' + i : i; |
---|
58 | function addError(message){ |
---|
59 | errors.push({property:path,message:message}); |
---|
60 | } |
---|
61 | |
---|
62 | if((typeof schema != 'object' || schema instanceof Array) && (path || typeof schema != 'function')){ |
---|
63 | if(typeof schema == 'function'){ |
---|
64 | if(!(Object(value) instanceof schema)){ |
---|
65 | addError("is not an instance of the class/constructor " + schema.name); |
---|
66 | } |
---|
67 | }else if(schema){ |
---|
68 | addError("Invalid schema/property definition " + schema); |
---|
69 | } |
---|
70 | return null; |
---|
71 | } |
---|
72 | if(_changing && schema.readonly){ |
---|
73 | addError("is a readonly field, it can not be changed"); |
---|
74 | } |
---|
75 | if(schema['extends']){ // if it extends another schema, it must pass that schema as well |
---|
76 | checkProp(value,schema['extends'],path,i); |
---|
77 | } |
---|
78 | // validate a value against a type definition |
---|
79 | function checkType(type,value){ |
---|
80 | if(type){ |
---|
81 | if(typeof type == 'string' && type != 'any' && |
---|
82 | (type == 'null' ? value !== null : typeof value != type) && |
---|
83 | !(value instanceof Array && type == 'array') && |
---|
84 | !(type == 'integer' && value%1===0)){ |
---|
85 | return [{property:path,message:(typeof value) + " value found, but a " + type + " is required"}]; |
---|
86 | } |
---|
87 | if(type instanceof Array){ |
---|
88 | var unionErrors=[]; |
---|
89 | for(var j = 0; j < type.length; j++){ // a union type |
---|
90 | if(!(unionErrors=checkType(type[j],value)).length){ |
---|
91 | break; |
---|
92 | } |
---|
93 | } |
---|
94 | if(unionErrors.length){ |
---|
95 | return unionErrors; |
---|
96 | } |
---|
97 | }else if(typeof type == 'object'){ |
---|
98 | var priorErrors = errors; |
---|
99 | errors = []; |
---|
100 | checkProp(value,type,path); |
---|
101 | var theseErrors = errors; |
---|
102 | errors = priorErrors; |
---|
103 | return theseErrors; |
---|
104 | } |
---|
105 | } |
---|
106 | return []; |
---|
107 | } |
---|
108 | if(value === undefined){ |
---|
109 | if(!schema.optional){ |
---|
110 | addError("is missing and it is not optional"); |
---|
111 | } |
---|
112 | }else{ |
---|
113 | errors = errors.concat(checkType(schema.type,value)); |
---|
114 | if(schema.disallow && !checkType(schema.disallow,value).length){ |
---|
115 | addError(" disallowed value was matched"); |
---|
116 | } |
---|
117 | if(value !== null){ |
---|
118 | if(value instanceof Array){ |
---|
119 | if(schema.items){ |
---|
120 | if(schema.items instanceof Array){ |
---|
121 | for(i=0,l=value.length; i<l; i++){ |
---|
122 | errors.concat(checkProp(value[i],schema.items[i],path,i)); |
---|
123 | } |
---|
124 | }else{ |
---|
125 | for(i=0,l=value.length; i<l; i++){ |
---|
126 | errors.concat(checkProp(value[i],schema.items,path,i)); |
---|
127 | } |
---|
128 | } |
---|
129 | } |
---|
130 | if(schema.minItems && value.length < schema.minItems){ |
---|
131 | addError("There must be a minimum of " + schema.minItems + " in the array"); |
---|
132 | } |
---|
133 | if(schema.maxItems && value.length > schema.maxItems){ |
---|
134 | addError("There must be a maximum of " + schema.maxItems + " in the array"); |
---|
135 | } |
---|
136 | }else if(schema.properties){ |
---|
137 | errors.concat(checkObj(value,schema.properties,path,schema.additionalProperties)); |
---|
138 | } |
---|
139 | if(schema.pattern && typeof value == 'string' && !value.match(schema.pattern)){ |
---|
140 | addError("does not match the regex pattern " + schema.pattern); |
---|
141 | } |
---|
142 | if(schema.maxLength && typeof value == 'string' && value.length > schema.maxLength){ |
---|
143 | addError("may only be " + schema.maxLength + " characters long"); |
---|
144 | } |
---|
145 | if(schema.minLength && typeof value == 'string' && value.length < schema.minLength){ |
---|
146 | addError("must be at least " + schema.minLength + " characters long"); |
---|
147 | } |
---|
148 | if(typeof schema.minimum !== undefined && typeof value == typeof schema.minimum && |
---|
149 | schema.minimum > value){ |
---|
150 | addError("must have a minimum value of " + schema.minimum); |
---|
151 | } |
---|
152 | if(typeof schema.maximum !== undefined && typeof value == typeof schema.maximum && |
---|
153 | schema.maximum < value){ |
---|
154 | addError("must have a maximum value of " + schema.maximum); |
---|
155 | } |
---|
156 | if(schema['enum']){ |
---|
157 | var enumer = schema['enum']; |
---|
158 | l = enumer.length; |
---|
159 | var found; |
---|
160 | for(var j = 0; j < l; j++){ |
---|
161 | if(enumer[j]===value){ |
---|
162 | found=1; |
---|
163 | break; |
---|
164 | } |
---|
165 | } |
---|
166 | if(!found){ |
---|
167 | addError("does not have a value in the enumeration " + enumer.join(", ")); |
---|
168 | } |
---|
169 | } |
---|
170 | if(typeof schema.maxDecimal == 'number' && |
---|
171 | (value.toString().match(new RegExp("\\.[0-9]{" + (schema.maxDecimal + 1) + ",}")))){ |
---|
172 | addError("may only have " + schema.maxDecimal + " digits of decimal places"); |
---|
173 | } |
---|
174 | } |
---|
175 | } |
---|
176 | return null; |
---|
177 | } |
---|
178 | // validate an object against a schema |
---|
179 | function checkObj(instance,objTypeDef,path,additionalProp){ |
---|
180 | |
---|
181 | if(typeof objTypeDef =='object'){ |
---|
182 | if(typeof instance != 'object' || instance instanceof Array){ |
---|
183 | errors.push({property:path,message:"an object is required"}); |
---|
184 | } |
---|
185 | |
---|
186 | for(var i in objTypeDef){ |
---|
187 | if(objTypeDef.hasOwnProperty(i) && !(i.charAt(0) == '_' && i.charAt(1) == '_')){ |
---|
188 | var value = instance[i]; |
---|
189 | var propDef = objTypeDef[i]; |
---|
190 | checkProp(value,propDef,path,i); |
---|
191 | } |
---|
192 | } |
---|
193 | } |
---|
194 | for(i in instance){ |
---|
195 | if(instance.hasOwnProperty(i) && !(i.charAt(0) == '_' && i.charAt(1) == '_') && objTypeDef && !objTypeDef[i] && additionalProp===false){ |
---|
196 | errors.push({property:path,message:(typeof value) + "The property " + i + |
---|
197 | " is not defined in the schema and the schema does not allow additional properties"}); |
---|
198 | } |
---|
199 | var requires = objTypeDef && objTypeDef[i] && objTypeDef[i].requires; |
---|
200 | if(requires && !(requires in instance)){ |
---|
201 | errors.push({property:path,message:"the presence of the property " + i + " requires that " + requires + " also be present"}); |
---|
202 | } |
---|
203 | value = instance[i]; |
---|
204 | if(objTypeDef && typeof objTypeDef == 'object' && !(i in objTypeDef)){ |
---|
205 | checkProp(value,additionalProp,path,i); |
---|
206 | } |
---|
207 | if(!_changing && value && value.$schema){ |
---|
208 | errors = errors.concat(checkProp(value,value.$schema,path,i)); |
---|
209 | } |
---|
210 | } |
---|
211 | return errors; |
---|
212 | } |
---|
213 | if(schema){ |
---|
214 | checkProp(instance,schema,'',_changing || ''); |
---|
215 | } |
---|
216 | if(!_changing && instance && instance.$schema){ |
---|
217 | checkProp(instance,instance.$schema,'',''); |
---|
218 | } |
---|
219 | return {valid:!errors.length,errors:errors}; |
---|
220 | }; |
---|
221 | |
---|
222 | return dojox.json.schema; |
---|
223 | }); |
---|