sqs_messages.py

#

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. Validator for messages consumed from SQS.

#

from common import cli_arguments, print_report, validate_multiple_messages, validate_single_message
from validators import (
    jsonInStrValidator,
    md5Validator,
    posIntInStringValidator,
    posIntOrZeroValidator,
    posIntValidator,
    uuidValidator,
)
from voluptuous import Optional, Required, Schema

#

Schema for HTTP headers data structure

httpHeadersSchema = Schema(
        {
            Required("x-amzn-requestid"): uuidValidator,
            Required("date"): str,
            Required("content-type"): "text/xml",
            Required("content-length"): posIntInStringValidator,
         })

#

Schema for response metadata data structure (sub-node in the main JSON)

responseMetadataSchema = Schema(
        {
            Required("RequestId"): uuidValidator,
            Required("HTTPStatusCode"): posIntValidator,
            Required("RetryAttempts"): posIntOrZeroValidator,
            Required("HTTPHeaders"): httpHeadersSchema,
         })

#

Schema for attributes data structure

attributesSchema = Schema(
        {
            Required("SenderId"): posIntInStringValidator,
            Required("ApproximateFirstReceiveTimestamp"): posIntInStringValidator,
            Required("ApproximateReceiveCount"): posIntInStringValidator,
            Required("SentTimestamp"): posIntInStringValidator,
         })

#

Schema for message data structure (sub-node in the main JSON)

messageSchema = Schema(
        {
            Required("MessageId"): uuidValidator,
            Required("ReceiptHandle"): posIntInStringValidator,
            Required("MD5OfBody"): md5Validator,
            Required("Body"): jsonInStrValidator,
            Required("Attributes"): attributesSchema,
         })

#

Schema for messages consumed from SQS

schema = Schema(
        {
            Required("ResponseMetadata"): responseMetadataSchema,
            Optional("Messages"): [messageSchema],
         })

#

Entry point to this script.

def main():

#

Parse all CLI arguments.

    args = cli_arguments()
    verbose = args.verbose
    multiple = args.multiple
    input_file = args.input

    if multiple:

#

process multiple messages stored in one input file

        report = validate_multiple_messages(schema, input_file, verbose)
    else:

#

process single message stored in one input file

        report = validate_single_message(schema, input_file, verbose)

#

print report from schema validation

    print_report(report, args.nocolors)


if __name__ == "__main__":
    main()