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 define("mojo/public/js/validator", [ | 5 (function() { |
6 "mojo/public/js/codec", | 6 var internal = mojoBindings.internal; |
7 ], function(codec) { | |
8 | 7 |
9 var validationError = { | 8 var validationError = { |
10 NONE: 'VALIDATION_ERROR_NONE', | 9 NONE: 'VALIDATION_ERROR_NONE', |
11 MISALIGNED_OBJECT: 'VALIDATION_ERROR_MISALIGNED_OBJECT', | 10 MISALIGNED_OBJECT: 'VALIDATION_ERROR_MISALIGNED_OBJECT', |
12 ILLEGAL_MEMORY_RANGE: 'VALIDATION_ERROR_ILLEGAL_MEMORY_RANGE', | 11 ILLEGAL_MEMORY_RANGE: 'VALIDATION_ERROR_ILLEGAL_MEMORY_RANGE', |
13 UNEXPECTED_STRUCT_HEADER: 'VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER', | 12 UNEXPECTED_STRUCT_HEADER: 'VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER', |
14 UNEXPECTED_ARRAY_HEADER: 'VALIDATION_ERROR_UNEXPECTED_ARRAY_HEADER', | 13 UNEXPECTED_ARRAY_HEADER: 'VALIDATION_ERROR_UNEXPECTED_ARRAY_HEADER', |
15 ILLEGAL_HANDLE: 'VALIDATION_ERROR_ILLEGAL_HANDLE', | 14 ILLEGAL_HANDLE: 'VALIDATION_ERROR_ILLEGAL_HANDLE', |
16 UNEXPECTED_INVALID_HANDLE: 'VALIDATION_ERROR_UNEXPECTED_INVALID_HANDLE', | 15 UNEXPECTED_INVALID_HANDLE: 'VALIDATION_ERROR_UNEXPECTED_INVALID_HANDLE', |
17 ILLEGAL_POINTER: 'VALIDATION_ERROR_ILLEGAL_POINTER', | 16 ILLEGAL_POINTER: 'VALIDATION_ERROR_ILLEGAL_POINTER', |
18 UNEXPECTED_NULL_POINTER: 'VALIDATION_ERROR_UNEXPECTED_NULL_POINTER', | 17 UNEXPECTED_NULL_POINTER: 'VALIDATION_ERROR_UNEXPECTED_NULL_POINTER', |
19 MESSAGE_HEADER_INVALID_FLAGS: | 18 MESSAGE_HEADER_INVALID_FLAGS: |
20 'VALIDATION_ERROR_MESSAGE_HEADER_INVALID_FLAGS', | 19 'VALIDATION_ERROR_MESSAGE_HEADER_INVALID_FLAGS', |
21 MESSAGE_HEADER_MISSING_REQUEST_ID: | 20 MESSAGE_HEADER_MISSING_REQUEST_ID: |
22 'VALIDATION_ERROR_MESSAGE_HEADER_MISSING_REQUEST_ID', | 21 'VALIDATION_ERROR_MESSAGE_HEADER_MISSING_REQUEST_ID', |
23 DIFFERENT_SIZED_ARRAYS_IN_MAP: | 22 DIFFERENT_SIZED_ARRAYS_IN_MAP: |
24 'VALIDATION_ERROR_DIFFERENT_SIZED_ARRAYS_IN_MAP', | 23 'VALIDATION_ERROR_DIFFERENT_SIZED_ARRAYS_IN_MAP', |
25 INVALID_UNION_SIZE: 'VALIDATION_ERROR_INVALID_UNION_SIZE', | 24 INVALID_UNION_SIZE: 'VALIDATION_ERROR_INVALID_UNION_SIZE', |
26 UNEXPECTED_NULL_UNION: 'VALIDATION_ERROR_UNEXPECTED_NULL_UNION', | 25 UNEXPECTED_NULL_UNION: 'VALIDATION_ERROR_UNEXPECTED_NULL_UNION', |
27 UNKNOWN_ENUM_VALUE: 'VALIDATION_ERROR_UNKNOWN_ENUM_VALUE', | 26 UNKNOWN_ENUM_VALUE: 'VALIDATION_ERROR_UNKNOWN_ENUM_VALUE', |
28 }; | 27 }; |
29 | 28 |
30 var NULL_MOJO_POINTER = "NULL_MOJO_POINTER"; | 29 var NULL_MOJO_POINTER = "NULL_MOJO_POINTER"; |
31 | 30 |
32 function isEnumClass(cls) { | 31 function isEnumClass(cls) { |
33 return cls instanceof codec.Enum; | 32 return cls instanceof internal.Enum; |
34 } | 33 } |
35 | 34 |
36 function isStringClass(cls) { | 35 function isStringClass(cls) { |
37 return cls === codec.String || cls === codec.NullableString; | 36 return cls === internal.String || cls === internal.NullableString; |
38 } | 37 } |
39 | 38 |
40 function isHandleClass(cls) { | 39 function isHandleClass(cls) { |
41 return cls === codec.Handle || cls === codec.NullableHandle; | 40 return cls === internal.Handle || cls === internal.NullableHandle; |
42 } | 41 } |
43 | 42 |
44 function isInterfaceClass(cls) { | 43 function isInterfaceClass(cls) { |
45 return cls instanceof codec.Interface; | 44 return cls instanceof internal.Interface; |
46 } | 45 } |
47 | 46 |
48 function isInterfaceRequestClass(cls) { | 47 function isInterfaceRequestClass(cls) { |
49 return cls === codec.InterfaceRequest || | 48 return cls === internal.InterfaceRequest || |
50 cls === codec.NullableInterfaceRequest; | 49 cls === internal.NullableInterfaceRequest; |
51 } | 50 } |
52 | 51 |
53 function isNullable(type) { | 52 function isNullable(type) { |
54 return type === codec.NullableString || type === codec.NullableHandle || | 53 return type === internal.NullableString || |
55 type === codec.NullableInterface || | 54 type === internal.NullableHandle || |
56 type === codec.NullableInterfaceRequest || | 55 type === internal.NullableInterface || |
57 type instanceof codec.NullableArrayOf || | 56 type === internal.NullableInterfaceRequest || |
58 type instanceof codec.NullablePointerTo; | 57 type instanceof internal.NullableArrayOf || |
| 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 === codec.kEncodedInvalidHandleValue) | 101 if (index === internal.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 === codec.kEncodedInvalidHandleValue) | 122 if (index === internal.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 (!codec.isAligned(offset)) | 141 if (!internal.isAligned(offset)) |
142 return validationError.MISALIGNED_OBJECT; | 142 return validationError.MISALIGNED_OBJECT; |
143 | 143 |
144 if (!this.isValidRange(offset, codec.kStructHeaderSize)) | 144 if (!this.isValidRange(offset, internal.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, codec.kMessageHeaderSize); | 185 var err = this.validateStructHeader(0, internal.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 == codec.kMessageHeaderSize) || | 193 (version == 0 && numBytes == internal.kMessageHeaderSize) || |
194 (version == 1 && | 194 (version == 1 && |
195 numBytes == codec.kMessageWithRequestIDHeaderSize) || | 195 numBytes == internal.kMessageWithRequestIDHeaderSize) || |
196 (version > 1 && | 196 (version > 1 && |
197 numBytes >= codec.kMessageWithRequestIDHeaderSize); | 197 numBytes >= internal.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 = codec.kStructHeaderSize + codec.kMapStructPayloadSize; | 325 var mapEncodedSize = internal.kStructHeaderSize + |
| 326 internal.kMapStructPayloadSize; |
326 var err = this.validateStructHeader(structOffset, mapEncodedSize); | 327 var err = this.validateStructHeader(structOffset, mapEncodedSize); |
327 if (err !== validationError.NONE) | 328 if (err !== validationError.NONE) |
328 return err; | 329 return err; |
329 | 330 |
330 // Validate the keys array. | 331 // Validate the keys array. |
331 var keysArrayPointerOffset = structOffset + codec.kStructHeaderSize; | 332 var keysArrayPointerOffset = structOffset + internal.kStructHeaderSize; |
332 err = this.validateArrayPointer( | 333 err = this.validateArrayPointer( |
333 keysArrayPointerOffset, keyClass.encodedSize, keyClass, false, [0], 0); | 334 keysArrayPointerOffset, keyClass.encodedSize, keyClass, false, [0], 0); |
334 if (err !== validationError.NONE) | 335 if (err !== validationError.NONE) |
335 return err; | 336 return err; |
336 | 337 |
337 // Validate the values array. | 338 // Validate the values array. |
338 var valuesArrayPointerOffset = keysArrayPointerOffset + 8; | 339 var valuesArrayPointerOffset = keysArrayPointerOffset + 8; |
339 var valuesArrayDimensions = [0]; // Validate the actual length below. | 340 var valuesArrayDimensions = [0]; // Validate the actual length below. |
340 if (valueClass instanceof codec.ArrayOf) | 341 if (valueClass instanceof internal.ArrayOf) |
341 valuesArrayDimensions = | 342 valuesArrayDimensions = |
342 valuesArrayDimensions.concat(valueClass.dimensions()); | 343 valuesArrayDimensions.concat(valueClass.dimensions()); |
343 var err = this.validateArrayPointer(valuesArrayPointerOffset, | 344 var err = this.validateArrayPointer(valuesArrayPointerOffset, |
344 valueClass.encodedSize, | 345 valueClass.encodedSize, |
345 valueClass, | 346 valueClass, |
346 valueIsNullable, | 347 valueIsNullable, |
347 valuesArrayDimensions, | 348 valuesArrayDimensions, |
348 0); | 349 0); |
349 if (err !== validationError.NONE) | 350 if (err !== validationError.NONE) |
350 return err; | 351 return err; |
351 | 352 |
352 // Validate the lengths of the keys and values arrays. | 353 // Validate the lengths of the keys and values arrays. |
353 var keysArrayLength = this.arrayLength(keysArrayPointerOffset); | 354 var keysArrayLength = this.arrayLength(keysArrayPointerOffset); |
354 var valuesArrayLength = this.arrayLength(valuesArrayPointerOffset); | 355 var valuesArrayLength = this.arrayLength(valuesArrayPointerOffset); |
355 if (keysArrayLength != valuesArrayLength) | 356 if (keysArrayLength != valuesArrayLength) |
356 return validationError.DIFFERENT_SIZED_ARRAYS_IN_MAP; | 357 return validationError.DIFFERENT_SIZED_ARRAYS_IN_MAP; |
357 | 358 |
358 return validationError.NONE; | 359 return validationError.NONE; |
359 }; | 360 }; |
360 | 361 |
361 Validator.prototype.validateStringPointer = function(offset, nullable) { | 362 Validator.prototype.validateStringPointer = function(offset, nullable) { |
362 return this.validateArrayPointer( | 363 return this.validateArrayPointer( |
363 offset, codec.Uint8.encodedSize, codec.Uint8, nullable, [0], 0); | 364 offset, internal.Uint8.encodedSize, internal.Uint8, nullable, [0], 0); |
364 }; | 365 }; |
365 | 366 |
366 // Similar to Array_Data<T>::Validate() | 367 // Similar to Array_Data<T>::Validate() |
367 // mojo/public/cpp/bindings/lib/array_internal.h | 368 // mojo/public/cpp/bindings/lib/array_internal.h |
368 | 369 |
369 Validator.prototype.validateArray = | 370 Validator.prototype.validateArray = |
370 function (offset, elementSize, elementType, expectedDimensionSizes, | 371 function (offset, elementSize, elementType, expectedDimensionSizes, |
371 currentDimension) { | 372 currentDimension) { |
372 if (!codec.isAligned(offset)) | 373 if (!internal.isAligned(offset)) |
373 return validationError.MISALIGNED_OBJECT; | 374 return validationError.MISALIGNED_OBJECT; |
374 | 375 |
375 if (!this.isValidRange(offset, codec.kArrayHeaderSize)) | 376 if (!this.isValidRange(offset, internal.kArrayHeaderSize)) |
376 return validationError.ILLEGAL_MEMORY_RANGE; | 377 return validationError.ILLEGAL_MEMORY_RANGE; |
377 | 378 |
378 var numBytes = this.message.buffer.getUint32(offset); | 379 var numBytes = this.message.buffer.getUint32(offset); |
379 var numElements = this.message.buffer.getUint32(offset + 4); | 380 var numElements = this.message.buffer.getUint32(offset + 4); |
380 | 381 |
381 // Note: this computation is "safe" because elementSize <= 8 and | 382 // Note: this computation is "safe" because elementSize <= 8 and |
382 // numElements is a uint32. | 383 // numElements is a uint32. |
383 var elementsTotalSize = (elementType === codec.PackedBool) ? | 384 var elementsTotalSize = (elementType === internal.PackedBool) ? |
384 Math.ceil(numElements / 8) : (elementSize * numElements); | 385 Math.ceil(numElements / 8) : (elementSize * numElements); |
385 | 386 |
386 if (numBytes < codec.kArrayHeaderSize + elementsTotalSize) | 387 if (numBytes < internal.kArrayHeaderSize + elementsTotalSize) |
387 return validationError.UNEXPECTED_ARRAY_HEADER; | 388 return validationError.UNEXPECTED_ARRAY_HEADER; |
388 | 389 |
389 if (expectedDimensionSizes[currentDimension] != 0 && | 390 if (expectedDimensionSizes[currentDimension] != 0 && |
390 numElements != expectedDimensionSizes[currentDimension]) { | 391 numElements != expectedDimensionSizes[currentDimension]) { |
391 return validationError.UNEXPECTED_ARRAY_HEADER; | 392 return validationError.UNEXPECTED_ARRAY_HEADER; |
392 } | 393 } |
393 | 394 |
394 if (!this.claimRange(offset, numBytes)) | 395 if (!this.claimRange(offset, numBytes)) |
395 return validationError.ILLEGAL_MEMORY_RANGE; | 396 return validationError.ILLEGAL_MEMORY_RANGE; |
396 | 397 |
397 // Validate the array's elements if they are pointers or handles. | 398 // Validate the array's elements if they are pointers or handles. |
398 | 399 |
399 var elementsOffset = offset + codec.kArrayHeaderSize; | 400 var elementsOffset = offset + internal.kArrayHeaderSize; |
400 var nullable = isNullable(elementType); | 401 var nullable = isNullable(elementType); |
401 | 402 |
402 if (isHandleClass(elementType)) | 403 if (isHandleClass(elementType)) |
403 return this.validateHandleElements(elementsOffset, numElements, nullable); | 404 return this.validateHandleElements(elementsOffset, numElements, nullable); |
404 if (isInterfaceClass(elementType)) | 405 if (isInterfaceClass(elementType)) |
405 return this.validateInterfaceElements( | 406 return this.validateInterfaceElements( |
406 elementsOffset, numElements, nullable); | 407 elementsOffset, numElements, nullable); |
407 if (isInterfaceRequestClass(elementType)) | 408 if (isInterfaceRequestClass(elementType)) |
408 return this.validateInterfaceRequestElements( | 409 return this.validateInterfaceRequestElements( |
409 elementsOffset, numElements, nullable); | 410 elementsOffset, numElements, nullable); |
410 if (isStringClass(elementType)) | 411 if (isStringClass(elementType)) |
411 return this.validateArrayElements( | 412 return this.validateArrayElements( |
412 elementsOffset, numElements, codec.Uint8, nullable, [0], 0); | 413 elementsOffset, numElements, internal.Uint8, nullable, [0], 0); |
413 if (elementType instanceof codec.PointerTo) | 414 if (elementType instanceof internal.PointerTo) |
414 return this.validateStructElements( | 415 return this.validateStructElements( |
415 elementsOffset, numElements, elementType.cls, nullable); | 416 elementsOffset, numElements, elementType.cls, nullable); |
416 if (elementType instanceof codec.ArrayOf) | 417 if (elementType instanceof internal.ArrayOf) |
417 return this.validateArrayElements( | 418 return this.validateArrayElements( |
418 elementsOffset, numElements, elementType.cls, nullable, | 419 elementsOffset, numElements, elementType.cls, nullable, |
419 expectedDimensionSizes, currentDimension + 1); | 420 expectedDimensionSizes, currentDimension + 1); |
420 if (isEnumClass(elementType)) | 421 if (isEnumClass(elementType)) |
421 return this.validateEnumElements(elementsOffset, numElements, | 422 return this.validateEnumElements(elementsOffset, numElements, |
422 elementType.cls); | 423 elementType.cls); |
423 | 424 |
424 return validationError.NONE; | 425 return validationError.NONE; |
425 }; | 426 }; |
426 | 427 |
427 // Note: the |offset + i * elementSize| computation in the validateFooElements | 428 // Note: the |offset + i * elementSize| computation in the validateFooElements |
428 // methods below is "safe" because elementSize <= 8, offset and | 429 // methods below is "safe" because elementSize <= 8, offset and |
429 // numElements are uint32, and 0 <= i < numElements. | 430 // numElements are uint32, and 0 <= i < numElements. |
430 | 431 |
431 Validator.prototype.validateHandleElements = | 432 Validator.prototype.validateHandleElements = |
432 function(offset, numElements, nullable) { | 433 function(offset, numElements, nullable) { |
433 var elementSize = codec.Handle.encodedSize; | 434 var elementSize = internal.Handle.encodedSize; |
434 for (var i = 0; i < numElements; i++) { | 435 for (var i = 0; i < numElements; i++) { |
435 var elementOffset = offset + i * elementSize; | 436 var elementOffset = offset + i * elementSize; |
436 var err = this.validateHandle(elementOffset, nullable); | 437 var err = this.validateHandle(elementOffset, nullable); |
437 if (err != validationError.NONE) | 438 if (err != validationError.NONE) |
438 return err; | 439 return err; |
439 } | 440 } |
440 return validationError.NONE; | 441 return validationError.NONE; |
441 }; | 442 }; |
442 | 443 |
443 Validator.prototype.validateInterfaceElements = | 444 Validator.prototype.validateInterfaceElements = |
444 function(offset, numElements, nullable) { | 445 function(offset, numElements, nullable) { |
445 var elementSize = codec.Interface.prototype.encodedSize; | 446 var elementSize = internal.Interface.prototype.encodedSize; |
446 for (var i = 0; i < numElements; i++) { | 447 for (var i = 0; i < numElements; i++) { |
447 var elementOffset = offset + i * elementSize; | 448 var elementOffset = offset + i * elementSize; |
448 var err = this.validateInterface(elementOffset, nullable); | 449 var err = this.validateInterface(elementOffset, nullable); |
449 if (err != validationError.NONE) | 450 if (err != validationError.NONE) |
450 return err; | 451 return err; |
451 } | 452 } |
452 return validationError.NONE; | 453 return validationError.NONE; |
453 }; | 454 }; |
454 | 455 |
455 Validator.prototype.validateInterfaceRequestElements = | 456 Validator.prototype.validateInterfaceRequestElements = |
456 function(offset, numElements, nullable) { | 457 function(offset, numElements, nullable) { |
457 var elementSize = codec.InterfaceRequest.encodedSize; | 458 var elementSize = internal.InterfaceRequest.encodedSize; |
458 for (var i = 0; i < numElements; i++) { | 459 for (var i = 0; i < numElements; i++) { |
459 var elementOffset = offset + i * elementSize; | 460 var elementOffset = offset + i * elementSize; |
460 var err = this.validateInterfaceRequest(elementOffset, nullable); | 461 var err = this.validateInterfaceRequest(elementOffset, nullable); |
461 if (err != validationError.NONE) | 462 if (err != validationError.NONE) |
462 return err; | 463 return err; |
463 } | 464 } |
464 return validationError.NONE; | 465 return validationError.NONE; |
465 }; | 466 }; |
466 | 467 |
467 // The elementClass parameter is the element type of the element arrays. | 468 // The elementClass parameter is the element type of the element arrays. |
468 Validator.prototype.validateArrayElements = | 469 Validator.prototype.validateArrayElements = |
469 function(offset, numElements, elementClass, nullable, | 470 function(offset, numElements, elementClass, nullable, |
470 expectedDimensionSizes, currentDimension) { | 471 expectedDimensionSizes, currentDimension) { |
471 var elementSize = codec.PointerTo.prototype.encodedSize; | 472 var elementSize = internal.PointerTo.prototype.encodedSize; |
472 for (var i = 0; i < numElements; i++) { | 473 for (var i = 0; i < numElements; i++) { |
473 var elementOffset = offset + i * elementSize; | 474 var elementOffset = offset + i * elementSize; |
474 var err = this.validateArrayPointer( | 475 var err = this.validateArrayPointer( |
475 elementOffset, elementClass.encodedSize, elementClass, nullable, | 476 elementOffset, elementClass.encodedSize, elementClass, nullable, |
476 expectedDimensionSizes, currentDimension); | 477 expectedDimensionSizes, currentDimension); |
477 if (err != validationError.NONE) | 478 if (err != validationError.NONE) |
478 return err; | 479 return err; |
479 } | 480 } |
480 return validationError.NONE; | 481 return validationError.NONE; |
481 }; | 482 }; |
482 | 483 |
483 Validator.prototype.validateStructElements = | 484 Validator.prototype.validateStructElements = |
484 function(offset, numElements, structClass, nullable) { | 485 function(offset, numElements, structClass, nullable) { |
485 var elementSize = codec.PointerTo.prototype.encodedSize; | 486 var elementSize = internal.PointerTo.prototype.encodedSize; |
486 for (var i = 0; i < numElements; i++) { | 487 for (var i = 0; i < numElements; i++) { |
487 var elementOffset = offset + i * elementSize; | 488 var elementOffset = offset + i * elementSize; |
488 var err = | 489 var err = |
489 this.validateStructPointer(elementOffset, structClass, nullable); | 490 this.validateStructPointer(elementOffset, structClass, nullable); |
490 if (err != validationError.NONE) | 491 if (err != validationError.NONE) |
491 return err; | 492 return err; |
492 } | 493 } |
493 return validationError.NONE; | 494 return validationError.NONE; |
494 }; | 495 }; |
495 | 496 |
496 Validator.prototype.validateEnumElements = | 497 Validator.prototype.validateEnumElements = |
497 function(offset, numElements, enumClass) { | 498 function(offset, numElements, enumClass) { |
498 var elementSize = codec.Enum.prototype.encodedSize; | 499 var elementSize = internal.Enum.prototype.encodedSize; |
499 for (var i = 0; i < numElements; i++) { | 500 for (var i = 0; i < numElements; i++) { |
500 var elementOffset = offset + i * elementSize; | 501 var elementOffset = offset + i * elementSize; |
501 var err = this.validateEnum(elementOffset, enumClass); | 502 var err = this.validateEnum(elementOffset, enumClass); |
502 if (err != validationError.NONE) | 503 if (err != validationError.NONE) |
503 return err; | 504 return err; |
504 } | 505 } |
505 return validationError.NONE; | 506 return validationError.NONE; |
506 }; | 507 }; |
507 | 508 |
508 var exports = {}; | 509 internal.validationError = validationError; |
509 exports.validationError = validationError; | 510 internal.Validator = Validator; |
510 exports.Validator = Validator; | 511 })(); |
511 return exports; | |
512 }); | |
OLD | NEW |