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How to use checksum method in avocado

Best Python code snippet using avocado_python

httpchecksum.py

Source:httpchecksum.py

...166    def read(self, amt=None):167        chunk = super().read(amt=amt)168        self._checksum.update(chunk)169        if amt is None or (not chunk and amt > 0):170            self._validate_checksum()171        return chunk172    def _validate_checksum(self):173        if self._checksum.digest() != base64.b64decode(self._expected):174            error_msg = (175                f"Expected checksum {self._expected} did not match calculated "176                f"checksum: {self._checksum.b64digest()}"177            )178            raise FlexibleChecksumError(error_msg=error_msg)179def resolve_checksum_context(request, operation_model, params):180    resolve_request_checksum_algorithm(request, operation_model, params)181    resolve_response_checksum_algorithms(request, operation_model, params)182def resolve_request_checksum_algorithm(183    request,184    operation_model,185    params,186    supported_algorithms=None,187):188    http_checksum = operation_model.http_checksum189    algorithm_member = http_checksum.get("requestAlgorithmMember")190    if algorithm_member and algorithm_member in params:191        # If the client has opted into using flexible checksums and the192        # request supports it, use that instead of checksum required193        if supported_algorithms is None:194            supported_algorithms = _SUPPORTED_CHECKSUM_ALGORITHMS195        algorithm_name = params[algorithm_member].lower()196        if algorithm_name not in supported_algorithms:197            raise FlexibleChecksumError(198                error_msg="Unsupported checksum algorithm: %s" % algorithm_name199            )200        location_type = "header"201        if operation_model.has_streaming_input:202            # Operations with streaming input must support trailers.203            if request["url"].startswith("https:"):204                # We only support unsigned trailer checksums currently. As this205                # disables payload signing we'll only use trailers over TLS.206                location_type = "trailer"207        algorithm = {208            "algorithm": algorithm_name,209            "in": location_type,210            "name": "x-amz-checksum-%s" % algorithm_name,211        }212        if algorithm["name"] in request["headers"]:213            # If the header is already set by the customer, skip calculation214            return215        checksum_context = request["context"].get("checksum", {})216        checksum_context["request_algorithm"] = algorithm217        request["context"]["checksum"] = checksum_context218    elif operation_model.http_checksum_required or http_checksum.get(219        "requestChecksumRequired"220    ):221        # Otherwise apply the old http checksum behavior via Content-MD5222        checksum_context = request["context"].get("checksum", {})223        checksum_context["request_algorithm"] = "conditional-md5"224        request["context"]["checksum"] = checksum_context225def apply_request_checksum(request):226    checksum_context = request.get("context", {}).get("checksum", {})227    algorithm = checksum_context.get("request_algorithm")228    if not algorithm:229        return230    if algorithm == "conditional-md5":231        # Special case to handle the http checksum required trait232        conditionally_calculate_md5(request)233    elif algorithm["in"] == "header":234        _apply_request_header_checksum(request)235    elif algorithm["in"] == "trailer":236        _apply_request_trailer_checksum(request)237    else:238        raise FlexibleChecksumError(239            error_msg="Unknown checksum variant: %s" % algorithm["in"]240        )241def _apply_request_header_checksum(request):242    checksum_context = request.get("context", {}).get("checksum", {})243    algorithm = checksum_context.get("request_algorithm")244    location_name = algorithm["name"]245    if location_name in request["headers"]:246        # If the header is already set by the customer, skip calculation247        return248    checksum_cls = _CHECKSUM_CLS.get(algorithm["algorithm"])249    digest = checksum_cls().handle(request["body"])250    request["headers"][location_name] = digest251def _apply_request_trailer_checksum(request):252    checksum_context = request.get("context", {}).get("checksum", {})253    algorithm = checksum_context.get("request_algorithm")254    location_name = algorithm["name"]255    checksum_cls = _CHECKSUM_CLS.get(algorithm["algorithm"])256    headers = request["headers"]257    body = request["body"]258    if location_name in headers:259        # If the header is already set by the customer, skip calculation260        return261    headers["Transfer-Encoding"] = "chunked"262    headers["Content-Encoding"] = "aws-chunked"263    headers["X-Amz-Trailer"] = location_name264    content_length = determine_content_length(body)265    if content_length is not None:...

test_computechecksums.py

Source:test_computechecksums.py

...10    pp = ComputeChecksums()11    pp.comment_index = 012    return pp13class TestComputeChecksums(BaseTestPreprocessor):14    def test_code_cell_no_checksum(self, preprocessor):15        """Test that no checksum is computed for a regular code cell"""16        cell, _ = preprocessor.preprocess_cell(17            create_code_cell(), {}, 0)18        assert "nbgrader" not in cell.metadata or "checksum" not in cell.metadata.nbgrader19    def test_text_cell_no_checksum(self, preprocessor):20        """Test that no checksum is computed for a regular text cell"""21        cell, _ = preprocessor.preprocess_cell(22            create_text_cell(), {}, 0)23        assert "nbgrader" not in cell.metadata or "checksum" not in cell.metadata.nbgrader24    def test_checksum_grade_cell_type(self, preprocessor):25        """Test that the checksum is computed for grade cells of different cell types"""26        cell1 = create_grade_cell("", "code", "foo", 1)27        cell1 = preprocessor.preprocess_cell(cell1, {}, 0)[0]28        cell2 = create_grade_cell("", "markdown", "foo", 1)29        cell2 = preprocessor.preprocess_cell(cell2, {}, 0)[0]30        assert cell1.metadata.nbgrader["checksum"] == compute_checksum(cell1)31        assert cell2.metadata.nbgrader["checksum"] == compute_checksum(cell2)32        assert cell1.metadata.nbgrader["checksum"] != cell2.metadata.nbgrader["checksum"]33    def test_checksum_solution_cell_type(self, preprocessor):34        """Test that the checksum is computed for solution cells of different cell types"""35        cell1 = create_solution_cell("", "code", "foo")36        cell1 = preprocessor.preprocess_cell(cell1, {}, 0)[0]37        cell2 = create_solution_cell("", "markdown", "foo")38        cell2 = preprocessor.preprocess_cell(cell2, {}, 0)[0]39        assert cell1.metadata.nbgrader["checksum"] == compute_checksum(cell1)40        assert cell2.metadata.nbgrader["checksum"] == compute_checksum(cell2)41        assert cell1.metadata.nbgrader["checksum"] != cell2.metadata.nbgrader["checksum"]42    def test_checksum_locked_cell_type(self, preprocessor):43        """Test that the checksum is computed for locked cells"""44        cell1 = create_locked_cell("", "code", "foo")45        cell1 = preprocessor.preprocess_cell(cell1, {}, 0)[0]46        cell2 = create_locked_cell("", "markdown", "foo")47        cell2 = preprocessor.preprocess_cell(cell2, {}, 0)[0]48        assert cell1.metadata.nbgrader["checksum"] == compute_checksum(cell1)49        assert cell2.metadata.nbgrader["checksum"] == compute_checksum(cell2)50        assert cell1.metadata.nbgrader["checksum"] != cell2.metadata.nbgrader["checksum"]51    def test_checksum_points(self, preprocessor):52        """Test that the checksum is computed for grade cells with different points"""53        cell1 = create_grade_cell("", "code", "foo", 1)54        cell1 = preprocessor.preprocess_cell(cell1, {}, 0)[0]55        cell2 = create_grade_cell("", "code", "foo", 2)56        cell2 = preprocessor.preprocess_cell(cell2, {}, 0)[0]57        assert cell1.metadata.nbgrader["checksum"] == compute_checksum(cell1)58        assert cell2.metadata.nbgrader["checksum"] == compute_checksum(cell2)59        assert cell1.metadata.nbgrader["checksum"] != cell2.metadata.nbgrader["checksum"]60    def test_checksum_grade_id(self, preprocessor):61        """Test that the checksum is computed for grade cells with different ids"""62        cell1 = create_grade_cell("", "code", "foo", 1)63        cell1 = preprocessor.preprocess_cell(cell1, {}, 0)[0]64        cell2 = create_grade_cell("", "code", "bar", 1)65        cell2 = preprocessor.preprocess_cell(cell2, {}, 0)[0]66        assert cell1.metadata.nbgrader["checksum"] == compute_checksum(cell1)67        assert cell2.metadata.nbgrader["checksum"] == compute_checksum(cell2)68        assert cell1.metadata.nbgrader["checksum"] != cell2.metadata.nbgrader["checksum"]69    def test_checksum_grade_source(self, preprocessor):70        """Test that the checksum is computed for grade cells with different sources"""71        cell1 = create_grade_cell("a", "code", "foo", 1)72        cell1 = preprocessor.preprocess_cell(cell1, {}, 0)[0]73        cell2 = create_grade_cell("b", "code", "foo", 1)74        cell2 = preprocessor.preprocess_cell(cell2, {}, 0)[0]75        assert cell1.metadata.nbgrader["checksum"] == compute_checksum(cell1)76        assert cell2.metadata.nbgrader["checksum"] == compute_checksum(cell2)77        assert cell1.metadata.nbgrader["checksum"] != cell2.metadata.nbgrader["checksum"]78    def test_checksum_solution_source(self, preprocessor):79        """Test that the checksum is computed for solution cells with different sources"""80        cell1 = create_solution_cell("a", "code", "foo")81        cell1 = preprocessor.preprocess_cell(cell1, {}, 0)[0]82        cell2 = create_solution_cell("b", "code", "foo")83        cell2 = preprocessor.preprocess_cell(cell2, {}, 0)[0]84        assert cell1.metadata.nbgrader["checksum"] == compute_checksum(cell1)85        assert cell2.metadata.nbgrader["checksum"] == compute_checksum(cell2)86        assert cell1.metadata.nbgrader["checksum"] != cell2.metadata.nbgrader["checksum"]87    def test_checksum_grade_and_solution(self, preprocessor):88        """Test that a checksum is created for grade cells that are also solution cells"""89        cell1 = create_grade_cell("", "markdown", "foo", 1)90        cell1 = preprocessor.preprocess_cell(cell1, {}, 0)[0]91        cell2 = create_grade_cell("", "markdown", "foo", 1)92        cell2.metadata.nbgrader["solution"] = True93        cell2 = preprocessor.preprocess_cell(cell2, {}, 0)[0]94        assert cell1.metadata.nbgrader["checksum"] == compute_checksum(cell1)95        assert cell2.metadata.nbgrader["checksum"] == compute_checksum(cell2)...

ChecksumEncoder.py

Source:ChecksumEncoder.py

1from Classes.CPPDefs import CPPDefs2from Classes.Debugger import Debugger3from Classes.Logic.LogicLong import LogicLong4class ChecksumEncoder:5    def __init__(self):6        self.checksum = 07        self.checksum2 = 08        self.checksumEnabled = True9    def destruct(self):10        self.checksum = 011        self.checksum2 = 012        self.checksumEnabled = True13    def enableCheckSum(self, state):14        if not self.checksumEnabled or state:15            if not self.checksumEnabled and state:16                self.checksum = self.checksum217            self.checksumEnabled = state18        else:19            self.checksum2 = self.checksum20            self.checksumEnabled = False21    def equals(self, checksum_instance):22        if not checksum_instance:23            return False24        if not checksum_instance.checksumEnabled:25            checksum = checksum_instance.checksum26        else:27            checksum2 = checksum_instance.checksum228        if not self.checksumEnabled:29            checksum = self.checksum30        else:31            checksum2 = self.checksum232        return checksum == checksum233    def getCheckSum(self):34        if not self.checksumEnabled:35            checksum = self.checksum236        else:37            checksum = self.checksum38        return checksum39    @staticmethod40    def hashCode():41        Debugger.error("ChecksumEncoder hashCode not designed")42        return 4243    @staticmethod44    def isByteStream():45        return False46    def isCheckSumEnabled(self):47        return self.checksumEnabled48    @staticmethod49    def isCheckSumOnlyMode():50        return True51    def resetCheckSum(self):52        self.checksum = 053    def writeBoolean(self, value):54        if value: integer = 1355        else: integer = 756        self.checksum = integer + CPPDefs.__ROR4__(self.checksum, 31)57    def writeByte(self, value):58        self.checksum = CPPDefs.__ROR4__(self.checksum, 31) + value + 1159    def writeBytes(self, value, length):60        if value: integer = length + 3861        else: integer = 3762        self.checksum = CPPDefs.__ROR4__(self.checksum, 31)63    def writeInt8(self, value):64        if value + 0x80 >= 0x100:65            Debugger.error("")66        self.checksum = CPPDefs.__ROR4__(self.checksum, 31) + value + 1167    def writeInt16(self, value):68        if value + 0x8000 >= 0x10000:69            Debugger.error("")70        self.checksum = CPPDefs.__ROR4__(self.checksum, 31) + value + 1971    def writeInt24(self, value):72        if value + 0x800000 >= 0x1000000:73            Debugger.error("")74        self.checksum = (value & 0xFFFFFF) + CPPDefs.__ROR4__(self.checksum, 31) + value + 2175    def writeInt(self, value):76        self.checksum = CPPDefs.__ROR4__(self.checksum, 31) + value + 977    @staticmethod78    def writeLong(bytestream, logicLong):79        logicLong.encode(bytestream)80    def writeLongLong(self, logicLong):81        self.checksum = logicLong.getLowerInt() + CPPDefs.__ROR4__(logicLong.getHigherInt() + CPPDefs.__ROR4__(self.checksum, 31) + 67, 31) + 9182    def writeShort(self, value):83        self.checksum = CPPDefs.__ROR4__(self.checksum, 31) + value + 1984    def writeString(self, value):85        checksum = CPPDefs.__ROR4__(self.checksum, 31)86        if value:87            self.checksum = checksum + len(value) + 2888        else:89            self.checksum = checksum + 2790    def writeStringReference(self, value):91        self.checksum = len(value) + CPPDefs.__ROR4__(self.checksum, 31) + 3892    def writeVInt(self, value):93        self.checksum = value + CPPDefs.__ROR4__(self.checksum, 31) + 3394    def writeVLong(self, high, low):...

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