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Swagger Fuzzer

Swagger Fuzzer helps you do fuzzing testing on your Swagger APIs.

Usage

Install swagger-fuzzer via pip:

pip3 install https://github.com/Lothiraldan/swagger-fuzzer/archive/master.zip

Point it to your swagger specification:

swagger-fuzzer http://localhost:80/v2/swagger.json

If swagger-fuzzer find any problem, it will print you a report, for example:

Falsifying example: swagger_fuzzer(data=request(...))
Curl command: curl -i -X GET -d '' 'http://localhost/pet/findByStatus'
Traceback (most recent call last):
  File "/Users/lothiraldan/.virtualenvs/swagger-fuzzer/bin/swagger-fuzzer", line 9, in <module>
    load_entry_point('swagger-fuzzer', 'console_scripts', 'swagger-fuzzer')()
  File "/Users/lothiraldan/projects/swagger-fuzzer/swagger_fuzzer/swagger_fuzzer/swagger_fuzzer.py", line 34, in main
    do(args)
  File "/Users/lothiraldan/projects/swagger-fuzzer/swagger_fuzzer/swagger_fuzzer/swagger_fuzzer.py", line 79, in do
    swagger_fuzzer()
  File "/Users/lothiraldan/projects/swagger-fuzzer/swagger_fuzzer/swagger_fuzzer/swagger_fuzzer.py", line 68, in swagger_fuzzer
    @hsettings(max_examples=settings.iterations)
  File "/Users/lothiraldan/projects/swagger-fuzzer/hypothesis-python/src/hypothesis/core.py", line 541, in wrapped_test
    print_example=True, is_final=True
  File "/Users/lothiraldan/projects/swagger-fuzzer/hypothesis-python/src/hypothesis/executors.py", line 58, in default_new_style_executor
    return function(data)
  File "/Users/lothiraldan/projects/swagger-fuzzer/hypothesis-python/src/hypothesis/core.py", line 104, in run
    return test(*args, **kwargs)
  File "/Users/lothiraldan/projects/swagger-fuzzer/swagger_fuzzer/swagger_fuzzer/swagger_fuzzer.py", line 76, in swagger_fuzzer
    validator(SPEC, request, result, settings)
  File "/Users/lothiraldan/projects/swagger-fuzzer/swagger_fuzzer/swagger_fuzzer/validators.py", line 54, in valid_output_mime
    raise AssertionError("Response content-type {} is not declared: {}".format(response.headers['Content-Type'], valids))
AssertionError: Response content-type text/html; charset=ISO-8859-1 is not declared: []

Bugs hunted

Swagger-fuzzer really find bugs, here is a non-extensive list of bugs found with swagger-fuzzer:

Credits

This package was created with Cookiecutter and the audreyr/cookiecutter-pypackage project template.

This project was sponsored by my employer Sqreen and developed initially for our needs.