Package software.amazon.awssdk.core.internal.util

Class HttpChecksumUtils

  • public final class HttpChecksumUtils
extends Object

    • Method Detail

      • httpChecksumHeader

        public static String httpChecksumHeader​(String algorithmName)
        Parameters:
        algorithmName - Checksum Algorithm Name
        Returns:
        Http Checksum header for a given Algorithm.

      • isStreamingUnsignedPayload

        public static boolean isStreamingUnsignedPayload​(SdkHttpRequest sdkHttpRequest,
                                                 ExecutionAttributes executionAttributes,
                                                 ChecksumSpecs headerChecksumSpecs,
                                                 boolean isContentStreaming)
        The header based Checksum is computed only if following criteria is met - Flexible checksum is not already computed. - - HeaderChecksumSpecs are defined. - Unsigned Payload request.

      • isHeaderBasedSigningAuth

        public static boolean isHeaderBasedSigningAuth​(SigningMethod signingMethodUsed,
                                               String protocol)

      • isUnsignedPayload

        public static boolean isUnsignedPayload​(SigningMethod signingMethod,
                                        String protocol,
                                        boolean isContentStreaming)
        Parameters:
        signingMethod - Signing Method.
        protocol - The http/https protocol.
        Returns:
        true if Payload signing is resolved to Unsigned payload.

      • computeChecksum

        public static byte[] computeChecksum​(InputStream is,
                                     Algorithm algorithm)
                              throws IOException
        Computes the Checksum of the data in the given input stream and returns it as an array of bytes.
        Parameters:
        is - InputStream for which checksum needs to be calculated.
        algorithm - algorithm that will be used to compute the checksum of input stream.
        Returns:
        Calculated checksum in bytes.
        Throws:
        IOException - I/O errors while reading.

      • checksumSpecWithRequestAlgorithm

        public static Optional<ChecksumSpecs> checksumSpecWithRequestAlgorithm​(ExecutionAttributes executionAttributes)
        Parameters:
        executionAttributes - Execution attributes defined for the request.
        Returns:
        Optional ChecksumSpec if checksum Algorithm exist for the checksumSpec

      • isHttpChecksumPresent

        public static boolean isHttpChecksumPresent​(SdkHttpRequest sdkHttpRequest,
                                            ChecksumSpecs checksumSpec)
        Checks if the request header is already updated with Calculated checksum.
        Parameters:
        sdkHttpRequest - SdkHttpRequest
        Returns:
        True if the flexible checksum header was already updated.

      • isMd5ChecksumRequired

        public static boolean isMd5ChecksumRequired​(ExecutionAttributes executionAttributes)

      • isTrailerBasedFlexibleChecksumComputed

        public static boolean isTrailerBasedFlexibleChecksumComputed​(SdkHttpRequest sdkHttpRequest,
                                                             ExecutionAttributes executionAttributes,
                                                             ChecksumSpecs checksumSpecs,
                                                             boolean hasRequestBody,
                                                             boolean isContentStreaming)
        The trailer based Checksum is computed only if following criteria is met - Flexible checksum is not already computed. - Streaming Unsigned Payload defined. - Unsigned Payload request.

      • isTrailerBasedChecksumForClientType

        public static boolean isTrailerBasedChecksumForClientType​(ExecutionAttributes executionAttributes,
                                                          SdkHttpRequest httpRequest,
                                                          ClientType clientType,
                                                          ChecksumSpecs checksumSpecs,
                                                          boolean hasRequestBody,
                                                          boolean isContentSteaming)
        Parameters:
        executionAttributes - Execution attributes for the request.
        httpRequest - Http Request.
        clientType - Client Type for which the Trailer checksum is appended.
        checksumSpecs - Checksum specs for the request.
        hasRequestBody - Request body.
        Returns:
        True if Trailer checksum needs to be calculated and appended.

      • getAlgorithmChecksumValuePair

        public static Pair<Algorithm,​String> getAlgorithmChecksumValuePair​(SdkHttpResponse sdkHttpResponse,
                                                                         ChecksumSpecs resolvedChecksumSpecs)
        Loops through the Supported list of checksum for the operation, and gets the Header value for the checksum header.
        Parameters:
        sdkHttpResponse - response from service.
        resolvedChecksumSpecs - Resolved checksum specification for the operation.
        Returns:
        Algorithm and its corresponding checksum value as sent by the service.

      • isHttpChecksumValidationEnabled

        public static boolean isHttpChecksumValidationEnabled​(ChecksumSpecs resolvedChecksumSpecs)
        Parameters:
        resolvedChecksumSpecs - Resolved checksum specification for the operation.
        Returns:
        True is Response is to be validated for checksum checks.

      • longToByte

        public static byte[] longToByte​(Long input)