OLD | NEW |
1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 (function() { | 5 define("mojo/public/js/validator", [ |
6 var internal = mojoBindings.internal; | 6 "mojo/public/js/codec", |
| 7 ], function(codec) { |
7 | 8 |
8 var validationError = { | 9 var validationError = { |
9 NONE: 'VALIDATION_ERROR_NONE', | 10 NONE: 'VALIDATION_ERROR_NONE', |
10 MISALIGNED_OBJECT: 'VALIDATION_ERROR_MISALIGNED_OBJECT', | 11 MISALIGNED_OBJECT: 'VALIDATION_ERROR_MISALIGNED_OBJECT', |
11 ILLEGAL_MEMORY_RANGE: 'VALIDATION_ERROR_ILLEGAL_MEMORY_RANGE', | 12 ILLEGAL_MEMORY_RANGE: 'VALIDATION_ERROR_ILLEGAL_MEMORY_RANGE', |
12 UNEXPECTED_STRUCT_HEADER: 'VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER', | 13 UNEXPECTED_STRUCT_HEADER: 'VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER', |
13 UNEXPECTED_ARRAY_HEADER: 'VALIDATION_ERROR_UNEXPECTED_ARRAY_HEADER', | 14 UNEXPECTED_ARRAY_HEADER: 'VALIDATION_ERROR_UNEXPECTED_ARRAY_HEADER', |
14 ILLEGAL_HANDLE: 'VALIDATION_ERROR_ILLEGAL_HANDLE', | 15 ILLEGAL_HANDLE: 'VALIDATION_ERROR_ILLEGAL_HANDLE', |
15 UNEXPECTED_INVALID_HANDLE: 'VALIDATION_ERROR_UNEXPECTED_INVALID_HANDLE', | 16 UNEXPECTED_INVALID_HANDLE: 'VALIDATION_ERROR_UNEXPECTED_INVALID_HANDLE', |
16 ILLEGAL_POINTER: 'VALIDATION_ERROR_ILLEGAL_POINTER', | 17 ILLEGAL_POINTER: 'VALIDATION_ERROR_ILLEGAL_POINTER', |
17 UNEXPECTED_NULL_POINTER: 'VALIDATION_ERROR_UNEXPECTED_NULL_POINTER', | 18 UNEXPECTED_NULL_POINTER: 'VALIDATION_ERROR_UNEXPECTED_NULL_POINTER', |
18 MESSAGE_HEADER_INVALID_FLAGS: | 19 MESSAGE_HEADER_INVALID_FLAGS: |
19 'VALIDATION_ERROR_MESSAGE_HEADER_INVALID_FLAGS', | 20 'VALIDATION_ERROR_MESSAGE_HEADER_INVALID_FLAGS', |
20 MESSAGE_HEADER_MISSING_REQUEST_ID: | 21 MESSAGE_HEADER_MISSING_REQUEST_ID: |
21 'VALIDATION_ERROR_MESSAGE_HEADER_MISSING_REQUEST_ID', | 22 'VALIDATION_ERROR_MESSAGE_HEADER_MISSING_REQUEST_ID', |
22 DIFFERENT_SIZED_ARRAYS_IN_MAP: | 23 DIFFERENT_SIZED_ARRAYS_IN_MAP: |
23 'VALIDATION_ERROR_DIFFERENT_SIZED_ARRAYS_IN_MAP', | 24 'VALIDATION_ERROR_DIFFERENT_SIZED_ARRAYS_IN_MAP', |
24 INVALID_UNION_SIZE: 'VALIDATION_ERROR_INVALID_UNION_SIZE', | 25 INVALID_UNION_SIZE: 'VALIDATION_ERROR_INVALID_UNION_SIZE', |
25 UNEXPECTED_NULL_UNION: 'VALIDATION_ERROR_UNEXPECTED_NULL_UNION', | 26 UNEXPECTED_NULL_UNION: 'VALIDATION_ERROR_UNEXPECTED_NULL_UNION', |
26 UNKNOWN_ENUM_VALUE: 'VALIDATION_ERROR_UNKNOWN_ENUM_VALUE', | 27 UNKNOWN_ENUM_VALUE: 'VALIDATION_ERROR_UNKNOWN_ENUM_VALUE', |
27 }; | 28 }; |
28 | 29 |
29 var NULL_MOJO_POINTER = "NULL_MOJO_POINTER"; | 30 var NULL_MOJO_POINTER = "NULL_MOJO_POINTER"; |
30 | 31 |
31 function isEnumClass(cls) { | 32 function isEnumClass(cls) { |
32 return cls instanceof internal.Enum; | 33 return cls instanceof codec.Enum; |
33 } | 34 } |
34 | 35 |
35 function isStringClass(cls) { | 36 function isStringClass(cls) { |
36 return cls === internal.String || cls === internal.NullableString; | 37 return cls === codec.String || cls === codec.NullableString; |
37 } | 38 } |
38 | 39 |
39 function isHandleClass(cls) { | 40 function isHandleClass(cls) { |
40 return cls === internal.Handle || cls === internal.NullableHandle; | 41 return cls === codec.Handle || cls === codec.NullableHandle; |
41 } | 42 } |
42 | 43 |
43 function isInterfaceClass(cls) { | 44 function isInterfaceClass(cls) { |
44 return cls instanceof internal.Interface; | 45 return cls instanceof codec.Interface; |
45 } | 46 } |
46 | 47 |
47 function isInterfaceRequestClass(cls) { | 48 function isInterfaceRequestClass(cls) { |
48 return cls === internal.InterfaceRequest || | 49 return cls === codec.InterfaceRequest || |
49 cls === internal.NullableInterfaceRequest; | 50 cls === codec.NullableInterfaceRequest; |
50 } | 51 } |
51 | 52 |
52 function isNullable(type) { | 53 function isNullable(type) { |
53 return type === internal.NullableString || | 54 return type === codec.NullableString || type === codec.NullableHandle || |
54 type === internal.NullableHandle || | 55 type === codec.NullableInterface || |
55 type === internal.NullableInterface || | 56 type === codec.NullableInterfaceRequest || |
56 type === internal.NullableInterfaceRequest || | 57 type instanceof codec.NullableArrayOf || |
57 type instanceof internal.NullableArrayOf || | 58 type instanceof codec.NullablePointerTo; |
58 type instanceof internal.NullablePointerTo; | |
59 } | 59 } |
60 | 60 |
61 function Validator(message) { | 61 function Validator(message) { |
62 this.message = message; | 62 this.message = message; |
63 this.offset = 0; | 63 this.offset = 0; |
64 this.handleIndex = 0; | 64 this.handleIndex = 0; |
65 } | 65 } |
66 | 66 |
67 Object.defineProperty(Validator.prototype, "offsetLimit", { | 67 Object.defineProperty(Validator.prototype, "offsetLimit", { |
68 get: function() { return this.message.buffer.byteLength; } | 68 get: function() { return this.message.buffer.byteLength; } |
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91 | 91 |
92 Validator.prototype.claimRange = function(start, numBytes) { | 92 Validator.prototype.claimRange = function(start, numBytes) { |
93 if (this.isValidRange(start, numBytes)) { | 93 if (this.isValidRange(start, numBytes)) { |
94 this.offset = start + numBytes; | 94 this.offset = start + numBytes; |
95 return true; | 95 return true; |
96 } | 96 } |
97 return false; | 97 return false; |
98 }; | 98 }; |
99 | 99 |
100 Validator.prototype.claimHandle = function(index) { | 100 Validator.prototype.claimHandle = function(index) { |
101 if (index === internal.kEncodedInvalidHandleValue) | 101 if (index === codec.kEncodedInvalidHandleValue) |
102 return true; | 102 return true; |
103 | 103 |
104 if (index < this.handleIndex || index >= this.handleIndexLimit) | 104 if (index < this.handleIndex || index >= this.handleIndexLimit) |
105 return false; | 105 return false; |
106 | 106 |
107 // This is safe because handle indices are uint32. | 107 // This is safe because handle indices are uint32. |
108 this.handleIndex = index + 1; | 108 this.handleIndex = index + 1; |
109 return true; | 109 return true; |
110 }; | 110 }; |
111 | 111 |
112 Validator.prototype.validateEnum = function(offset, enumClass) { | 112 Validator.prototype.validateEnum = function(offset, enumClass) { |
113 // Note: Assumes that enums are always 32 bits! But this matches | 113 // Note: Assumes that enums are always 32 bits! But this matches |
114 // mojom::generate::pack::PackedField::GetSizeForKind, so it should be okay. | 114 // mojom::generate::pack::PackedField::GetSizeForKind, so it should be okay. |
115 var value = this.message.buffer.getInt32(offset); | 115 var value = this.message.buffer.getInt32(offset); |
116 return enumClass.validate(value); | 116 return enumClass.validate(value); |
117 } | 117 } |
118 | 118 |
119 Validator.prototype.validateHandle = function(offset, nullable) { | 119 Validator.prototype.validateHandle = function(offset, nullable) { |
120 var index = this.message.buffer.getUint32(offset); | 120 var index = this.message.buffer.getUint32(offset); |
121 | 121 |
122 if (index === internal.kEncodedInvalidHandleValue) | 122 if (index === codec.kEncodedInvalidHandleValue) |
123 return nullable ? | 123 return nullable ? |
124 validationError.NONE : validationError.UNEXPECTED_INVALID_HANDLE; | 124 validationError.NONE : validationError.UNEXPECTED_INVALID_HANDLE; |
125 | 125 |
126 if (!this.claimHandle(index)) | 126 if (!this.claimHandle(index)) |
127 return validationError.ILLEGAL_HANDLE; | 127 return validationError.ILLEGAL_HANDLE; |
128 | 128 |
129 return validationError.NONE; | 129 return validationError.NONE; |
130 }; | 130 }; |
131 | 131 |
132 Validator.prototype.validateInterface = function(offset, nullable) { | 132 Validator.prototype.validateInterface = function(offset, nullable) { |
133 return this.validateHandle(offset, nullable); | 133 return this.validateHandle(offset, nullable); |
134 }; | 134 }; |
135 | 135 |
136 Validator.prototype.validateInterfaceRequest = function(offset, nullable) { | 136 Validator.prototype.validateInterfaceRequest = function(offset, nullable) { |
137 return this.validateHandle(offset, nullable); | 137 return this.validateHandle(offset, nullable); |
138 }; | 138 }; |
139 | 139 |
140 Validator.prototype.validateStructHeader = function(offset, minNumBytes) { | 140 Validator.prototype.validateStructHeader = function(offset, minNumBytes) { |
141 if (!internal.isAligned(offset)) | 141 if (!codec.isAligned(offset)) |
142 return validationError.MISALIGNED_OBJECT; | 142 return validationError.MISALIGNED_OBJECT; |
143 | 143 |
144 if (!this.isValidRange(offset, internal.kStructHeaderSize)) | 144 if (!this.isValidRange(offset, codec.kStructHeaderSize)) |
145 return validationError.ILLEGAL_MEMORY_RANGE; | 145 return validationError.ILLEGAL_MEMORY_RANGE; |
146 | 146 |
147 var numBytes = this.message.buffer.getUint32(offset); | 147 var numBytes = this.message.buffer.getUint32(offset); |
148 | 148 |
149 if (numBytes < minNumBytes) | 149 if (numBytes < minNumBytes) |
150 return validationError.UNEXPECTED_STRUCT_HEADER; | 150 return validationError.UNEXPECTED_STRUCT_HEADER; |
151 | 151 |
152 if (!this.claimRange(offset, numBytes)) | 152 if (!this.claimRange(offset, numBytes)) |
153 return validationError.ILLEGAL_MEMORY_RANGE; | 153 return validationError.ILLEGAL_MEMORY_RANGE; |
154 | 154 |
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175 return validationError.NONE; | 175 return validationError.NONE; |
176 }; | 176 }; |
177 | 177 |
178 Validator.prototype.isFieldInStructVersion = function(offset, fieldVersion) { | 178 Validator.prototype.isFieldInStructVersion = function(offset, fieldVersion) { |
179 var structVersion = this.message.buffer.getUint32(offset + 4); | 179 var structVersion = this.message.buffer.getUint32(offset + 4); |
180 return fieldVersion <= structVersion; | 180 return fieldVersion <= structVersion; |
181 }; | 181 }; |
182 | 182 |
183 Validator.prototype.validateMessageHeader = function() { | 183 Validator.prototype.validateMessageHeader = function() { |
184 | 184 |
185 var err = this.validateStructHeader(0, internal.kMessageHeaderSize); | 185 var err = this.validateStructHeader(0, codec.kMessageHeaderSize); |
186 if (err != validationError.NONE) | 186 if (err != validationError.NONE) |
187 return err; | 187 return err; |
188 | 188 |
189 var numBytes = this.message.getHeaderNumBytes(); | 189 var numBytes = this.message.getHeaderNumBytes(); |
190 var version = this.message.getHeaderVersion(); | 190 var version = this.message.getHeaderVersion(); |
191 | 191 |
192 var validVersionAndNumBytes = | 192 var validVersionAndNumBytes = |
193 (version == 0 && numBytes == internal.kMessageHeaderSize) || | 193 (version == 0 && numBytes == codec.kMessageHeaderSize) || |
194 (version == 1 && | 194 (version == 1 && |
195 numBytes == internal.kMessageWithRequestIDHeaderSize) || | 195 numBytes == codec.kMessageWithRequestIDHeaderSize) || |
196 (version > 1 && | 196 (version > 1 && |
197 numBytes >= internal.kMessageWithRequestIDHeaderSize); | 197 numBytes >= codec.kMessageWithRequestIDHeaderSize); |
198 if (!validVersionAndNumBytes) | 198 if (!validVersionAndNumBytes) |
199 return validationError.UNEXPECTED_STRUCT_HEADER; | 199 return validationError.UNEXPECTED_STRUCT_HEADER; |
200 | 200 |
201 var expectsResponse = this.message.expectsResponse(); | 201 var expectsResponse = this.message.expectsResponse(); |
202 var isResponse = this.message.isResponse(); | 202 var isResponse = this.message.isResponse(); |
203 | 203 |
204 if (version == 0 && (expectsResponse || isResponse)) | 204 if (version == 0 && (expectsResponse || isResponse)) |
205 return validationError.MESSAGE_HEADER_MISSING_REQUEST_ID; | 205 return validationError.MESSAGE_HEADER_MISSING_REQUEST_ID; |
206 | 206 |
207 if (isResponse && expectsResponse) | 207 if (isResponse && expectsResponse) |
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315 // Validate the implicit map struct: | 315 // Validate the implicit map struct: |
316 // struct {array<keyClass> keys; array<valueClass> values}; | 316 // struct {array<keyClass> keys; array<valueClass> values}; |
317 var structOffset = this.decodePointer(offset); | 317 var structOffset = this.decodePointer(offset); |
318 if (structOffset === null) | 318 if (structOffset === null) |
319 return validationError.ILLEGAL_POINTER; | 319 return validationError.ILLEGAL_POINTER; |
320 | 320 |
321 if (structOffset === NULL_MOJO_POINTER) | 321 if (structOffset === NULL_MOJO_POINTER) |
322 return mapIsNullable ? | 322 return mapIsNullable ? |
323 validationError.NONE : validationError.UNEXPECTED_NULL_POINTER; | 323 validationError.NONE : validationError.UNEXPECTED_NULL_POINTER; |
324 | 324 |
325 var mapEncodedSize = internal.kStructHeaderSize + | 325 var mapEncodedSize = codec.kStructHeaderSize + codec.kMapStructPayloadSize; |
326 internal.kMapStructPayloadSize; | |
327 var err = this.validateStructHeader(structOffset, mapEncodedSize); | 326 var err = this.validateStructHeader(structOffset, mapEncodedSize); |
328 if (err !== validationError.NONE) | 327 if (err !== validationError.NONE) |
329 return err; | 328 return err; |
330 | 329 |
331 // Validate the keys array. | 330 // Validate the keys array. |
332 var keysArrayPointerOffset = structOffset + internal.kStructHeaderSize; | 331 var keysArrayPointerOffset = structOffset + codec.kStructHeaderSize; |
333 err = this.validateArrayPointer( | 332 err = this.validateArrayPointer( |
334 keysArrayPointerOffset, keyClass.encodedSize, keyClass, false, [0], 0); | 333 keysArrayPointerOffset, keyClass.encodedSize, keyClass, false, [0], 0); |
335 if (err !== validationError.NONE) | 334 if (err !== validationError.NONE) |
336 return err; | 335 return err; |
337 | 336 |
338 // Validate the values array. | 337 // Validate the values array. |
339 var valuesArrayPointerOffset = keysArrayPointerOffset + 8; | 338 var valuesArrayPointerOffset = keysArrayPointerOffset + 8; |
340 var valuesArrayDimensions = [0]; // Validate the actual length below. | 339 var valuesArrayDimensions = [0]; // Validate the actual length below. |
341 if (valueClass instanceof internal.ArrayOf) | 340 if (valueClass instanceof codec.ArrayOf) |
342 valuesArrayDimensions = | 341 valuesArrayDimensions = |
343 valuesArrayDimensions.concat(valueClass.dimensions()); | 342 valuesArrayDimensions.concat(valueClass.dimensions()); |
344 var err = this.validateArrayPointer(valuesArrayPointerOffset, | 343 var err = this.validateArrayPointer(valuesArrayPointerOffset, |
345 valueClass.encodedSize, | 344 valueClass.encodedSize, |
346 valueClass, | 345 valueClass, |
347 valueIsNullable, | 346 valueIsNullable, |
348 valuesArrayDimensions, | 347 valuesArrayDimensions, |
349 0); | 348 0); |
350 if (err !== validationError.NONE) | 349 if (err !== validationError.NONE) |
351 return err; | 350 return err; |
352 | 351 |
353 // Validate the lengths of the keys and values arrays. | 352 // Validate the lengths of the keys and values arrays. |
354 var keysArrayLength = this.arrayLength(keysArrayPointerOffset); | 353 var keysArrayLength = this.arrayLength(keysArrayPointerOffset); |
355 var valuesArrayLength = this.arrayLength(valuesArrayPointerOffset); | 354 var valuesArrayLength = this.arrayLength(valuesArrayPointerOffset); |
356 if (keysArrayLength != valuesArrayLength) | 355 if (keysArrayLength != valuesArrayLength) |
357 return validationError.DIFFERENT_SIZED_ARRAYS_IN_MAP; | 356 return validationError.DIFFERENT_SIZED_ARRAYS_IN_MAP; |
358 | 357 |
359 return validationError.NONE; | 358 return validationError.NONE; |
360 }; | 359 }; |
361 | 360 |
362 Validator.prototype.validateStringPointer = function(offset, nullable) { | 361 Validator.prototype.validateStringPointer = function(offset, nullable) { |
363 return this.validateArrayPointer( | 362 return this.validateArrayPointer( |
364 offset, internal.Uint8.encodedSize, internal.Uint8, nullable, [0], 0); | 363 offset, codec.Uint8.encodedSize, codec.Uint8, nullable, [0], 0); |
365 }; | 364 }; |
366 | 365 |
367 // Similar to Array_Data<T>::Validate() | 366 // Similar to Array_Data<T>::Validate() |
368 // mojo/public/cpp/bindings/lib/array_internal.h | 367 // mojo/public/cpp/bindings/lib/array_internal.h |
369 | 368 |
370 Validator.prototype.validateArray = | 369 Validator.prototype.validateArray = |
371 function (offset, elementSize, elementType, expectedDimensionSizes, | 370 function (offset, elementSize, elementType, expectedDimensionSizes, |
372 currentDimension) { | 371 currentDimension) { |
373 if (!internal.isAligned(offset)) | 372 if (!codec.isAligned(offset)) |
374 return validationError.MISALIGNED_OBJECT; | 373 return validationError.MISALIGNED_OBJECT; |
375 | 374 |
376 if (!this.isValidRange(offset, internal.kArrayHeaderSize)) | 375 if (!this.isValidRange(offset, codec.kArrayHeaderSize)) |
377 return validationError.ILLEGAL_MEMORY_RANGE; | 376 return validationError.ILLEGAL_MEMORY_RANGE; |
378 | 377 |
379 var numBytes = this.message.buffer.getUint32(offset); | 378 var numBytes = this.message.buffer.getUint32(offset); |
380 var numElements = this.message.buffer.getUint32(offset + 4); | 379 var numElements = this.message.buffer.getUint32(offset + 4); |
381 | 380 |
382 // Note: this computation is "safe" because elementSize <= 8 and | 381 // Note: this computation is "safe" because elementSize <= 8 and |
383 // numElements is a uint32. | 382 // numElements is a uint32. |
384 var elementsTotalSize = (elementType === internal.PackedBool) ? | 383 var elementsTotalSize = (elementType === codec.PackedBool) ? |
385 Math.ceil(numElements / 8) : (elementSize * numElements); | 384 Math.ceil(numElements / 8) : (elementSize * numElements); |
386 | 385 |
387 if (numBytes < internal.kArrayHeaderSize + elementsTotalSize) | 386 if (numBytes < codec.kArrayHeaderSize + elementsTotalSize) |
388 return validationError.UNEXPECTED_ARRAY_HEADER; | 387 return validationError.UNEXPECTED_ARRAY_HEADER; |
389 | 388 |
390 if (expectedDimensionSizes[currentDimension] != 0 && | 389 if (expectedDimensionSizes[currentDimension] != 0 && |
391 numElements != expectedDimensionSizes[currentDimension]) { | 390 numElements != expectedDimensionSizes[currentDimension]) { |
392 return validationError.UNEXPECTED_ARRAY_HEADER; | 391 return validationError.UNEXPECTED_ARRAY_HEADER; |
393 } | 392 } |
394 | 393 |
395 if (!this.claimRange(offset, numBytes)) | 394 if (!this.claimRange(offset, numBytes)) |
396 return validationError.ILLEGAL_MEMORY_RANGE; | 395 return validationError.ILLEGAL_MEMORY_RANGE; |
397 | 396 |
398 // Validate the array's elements if they are pointers or handles. | 397 // Validate the array's elements if they are pointers or handles. |
399 | 398 |
400 var elementsOffset = offset + internal.kArrayHeaderSize; | 399 var elementsOffset = offset + codec.kArrayHeaderSize; |
401 var nullable = isNullable(elementType); | 400 var nullable = isNullable(elementType); |
402 | 401 |
403 if (isHandleClass(elementType)) | 402 if (isHandleClass(elementType)) |
404 return this.validateHandleElements(elementsOffset, numElements, nullable); | 403 return this.validateHandleElements(elementsOffset, numElements, nullable); |
405 if (isInterfaceClass(elementType)) | 404 if (isInterfaceClass(elementType)) |
406 return this.validateInterfaceElements( | 405 return this.validateInterfaceElements( |
407 elementsOffset, numElements, nullable); | 406 elementsOffset, numElements, nullable); |
408 if (isInterfaceRequestClass(elementType)) | 407 if (isInterfaceRequestClass(elementType)) |
409 return this.validateInterfaceRequestElements( | 408 return this.validateInterfaceRequestElements( |
410 elementsOffset, numElements, nullable); | 409 elementsOffset, numElements, nullable); |
411 if (isStringClass(elementType)) | 410 if (isStringClass(elementType)) |
412 return this.validateArrayElements( | 411 return this.validateArrayElements( |
413 elementsOffset, numElements, internal.Uint8, nullable, [0], 0); | 412 elementsOffset, numElements, codec.Uint8, nullable, [0], 0); |
414 if (elementType instanceof internal.PointerTo) | 413 if (elementType instanceof codec.PointerTo) |
415 return this.validateStructElements( | 414 return this.validateStructElements( |
416 elementsOffset, numElements, elementType.cls, nullable); | 415 elementsOffset, numElements, elementType.cls, nullable); |
417 if (elementType instanceof internal.ArrayOf) | 416 if (elementType instanceof codec.ArrayOf) |
418 return this.validateArrayElements( | 417 return this.validateArrayElements( |
419 elementsOffset, numElements, elementType.cls, nullable, | 418 elementsOffset, numElements, elementType.cls, nullable, |
420 expectedDimensionSizes, currentDimension + 1); | 419 expectedDimensionSizes, currentDimension + 1); |
421 if (isEnumClass(elementType)) | 420 if (isEnumClass(elementType)) |
422 return this.validateEnumElements(elementsOffset, numElements, | 421 return this.validateEnumElements(elementsOffset, numElements, |
423 elementType.cls); | 422 elementType.cls); |
424 | 423 |
425 return validationError.NONE; | 424 return validationError.NONE; |
426 }; | 425 }; |
427 | 426 |
428 // Note: the |offset + i * elementSize| computation in the validateFooElements | 427 // Note: the |offset + i * elementSize| computation in the validateFooElements |
429 // methods below is "safe" because elementSize <= 8, offset and | 428 // methods below is "safe" because elementSize <= 8, offset and |
430 // numElements are uint32, and 0 <= i < numElements. | 429 // numElements are uint32, and 0 <= i < numElements. |
431 | 430 |
432 Validator.prototype.validateHandleElements = | 431 Validator.prototype.validateHandleElements = |
433 function(offset, numElements, nullable) { | 432 function(offset, numElements, nullable) { |
434 var elementSize = internal.Handle.encodedSize; | 433 var elementSize = codec.Handle.encodedSize; |
435 for (var i = 0; i < numElements; i++) { | 434 for (var i = 0; i < numElements; i++) { |
436 var elementOffset = offset + i * elementSize; | 435 var elementOffset = offset + i * elementSize; |
437 var err = this.validateHandle(elementOffset, nullable); | 436 var err = this.validateHandle(elementOffset, nullable); |
438 if (err != validationError.NONE) | 437 if (err != validationError.NONE) |
439 return err; | 438 return err; |
440 } | 439 } |
441 return validationError.NONE; | 440 return validationError.NONE; |
442 }; | 441 }; |
443 | 442 |
444 Validator.prototype.validateInterfaceElements = | 443 Validator.prototype.validateInterfaceElements = |
445 function(offset, numElements, nullable) { | 444 function(offset, numElements, nullable) { |
446 var elementSize = internal.Interface.prototype.encodedSize; | 445 var elementSize = codec.Interface.prototype.encodedSize; |
447 for (var i = 0; i < numElements; i++) { | 446 for (var i = 0; i < numElements; i++) { |
448 var elementOffset = offset + i * elementSize; | 447 var elementOffset = offset + i * elementSize; |
449 var err = this.validateInterface(elementOffset, nullable); | 448 var err = this.validateInterface(elementOffset, nullable); |
450 if (err != validationError.NONE) | 449 if (err != validationError.NONE) |
451 return err; | 450 return err; |
452 } | 451 } |
453 return validationError.NONE; | 452 return validationError.NONE; |
454 }; | 453 }; |
455 | 454 |
456 Validator.prototype.validateInterfaceRequestElements = | 455 Validator.prototype.validateInterfaceRequestElements = |
457 function(offset, numElements, nullable) { | 456 function(offset, numElements, nullable) { |
458 var elementSize = internal.InterfaceRequest.encodedSize; | 457 var elementSize = codec.InterfaceRequest.encodedSize; |
459 for (var i = 0; i < numElements; i++) { | 458 for (var i = 0; i < numElements; i++) { |
460 var elementOffset = offset + i * elementSize; | 459 var elementOffset = offset + i * elementSize; |
461 var err = this.validateInterfaceRequest(elementOffset, nullable); | 460 var err = this.validateInterfaceRequest(elementOffset, nullable); |
462 if (err != validationError.NONE) | 461 if (err != validationError.NONE) |
463 return err; | 462 return err; |
464 } | 463 } |
465 return validationError.NONE; | 464 return validationError.NONE; |
466 }; | 465 }; |
467 | 466 |
468 // The elementClass parameter is the element type of the element arrays. | 467 // The elementClass parameter is the element type of the element arrays. |
469 Validator.prototype.validateArrayElements = | 468 Validator.prototype.validateArrayElements = |
470 function(offset, numElements, elementClass, nullable, | 469 function(offset, numElements, elementClass, nullable, |
471 expectedDimensionSizes, currentDimension) { | 470 expectedDimensionSizes, currentDimension) { |
472 var elementSize = internal.PointerTo.prototype.encodedSize; | 471 var elementSize = codec.PointerTo.prototype.encodedSize; |
473 for (var i = 0; i < numElements; i++) { | 472 for (var i = 0; i < numElements; i++) { |
474 var elementOffset = offset + i * elementSize; | 473 var elementOffset = offset + i * elementSize; |
475 var err = this.validateArrayPointer( | 474 var err = this.validateArrayPointer( |
476 elementOffset, elementClass.encodedSize, elementClass, nullable, | 475 elementOffset, elementClass.encodedSize, elementClass, nullable, |
477 expectedDimensionSizes, currentDimension); | 476 expectedDimensionSizes, currentDimension); |
478 if (err != validationError.NONE) | 477 if (err != validationError.NONE) |
479 return err; | 478 return err; |
480 } | 479 } |
481 return validationError.NONE; | 480 return validationError.NONE; |
482 }; | 481 }; |
483 | 482 |
484 Validator.prototype.validateStructElements = | 483 Validator.prototype.validateStructElements = |
485 function(offset, numElements, structClass, nullable) { | 484 function(offset, numElements, structClass, nullable) { |
486 var elementSize = internal.PointerTo.prototype.encodedSize; | 485 var elementSize = codec.PointerTo.prototype.encodedSize; |
487 for (var i = 0; i < numElements; i++) { | 486 for (var i = 0; i < numElements; i++) { |
488 var elementOffset = offset + i * elementSize; | 487 var elementOffset = offset + i * elementSize; |
489 var err = | 488 var err = |
490 this.validateStructPointer(elementOffset, structClass, nullable); | 489 this.validateStructPointer(elementOffset, structClass, nullable); |
491 if (err != validationError.NONE) | 490 if (err != validationError.NONE) |
492 return err; | 491 return err; |
493 } | 492 } |
494 return validationError.NONE; | 493 return validationError.NONE; |
495 }; | 494 }; |
496 | 495 |
497 Validator.prototype.validateEnumElements = | 496 Validator.prototype.validateEnumElements = |
498 function(offset, numElements, enumClass) { | 497 function(offset, numElements, enumClass) { |
499 var elementSize = internal.Enum.prototype.encodedSize; | 498 var elementSize = codec.Enum.prototype.encodedSize; |
500 for (var i = 0; i < numElements; i++) { | 499 for (var i = 0; i < numElements; i++) { |
501 var elementOffset = offset + i * elementSize; | 500 var elementOffset = offset + i * elementSize; |
502 var err = this.validateEnum(elementOffset, enumClass); | 501 var err = this.validateEnum(elementOffset, enumClass); |
503 if (err != validationError.NONE) | 502 if (err != validationError.NONE) |
504 return err; | 503 return err; |
505 } | 504 } |
506 return validationError.NONE; | 505 return validationError.NONE; |
507 }; | 506 }; |
508 | 507 |
509 internal.validationError = validationError; | 508 var exports = {}; |
510 internal.Validator = Validator; | 509 exports.validationError = validationError; |
511 })(); | 510 exports.Validator = Validator; |
| 511 return exports; |
| 512 }); |
OLD | NEW |