Dev RELEASE: v0.15.5

src/offat/api/config.py

@@ -10,7 +10,10 @@
 load_dotenv()
 
 app = FastAPI(
-    title='OFFAT - API'
+    title='OFFAT - API',
+    servers=[{
+        'url':'http://localhost:8000',
+    }],
 )
 
 auth_secret_key = environ.get(

src/offat/parsers/openapi.py

@@ -13,6 +13,7 @@ class OpenAPIv3Parser(BaseParser):
     '''OpenAPI v3 Spec File Parser'''
     # while adding new method to this class, make sure same method is present in SwaggerParser class
 
+
     def __init__(self, file_or_url: str, spec: dict | None = None) -> None:
         super().__init__(file_or_url=file_or_url, spec=spec)  # noqa
         if not self.is_v3:
@@ -25,6 +26,7 @@ def __init__(self, file_or_url: str, spec: dict | None = None) -> None:
 
         self.request_response_params = self._get_request_response_params()
 
+
     def _populate_hosts(self):
         servers = self.specification.get('servers', [])
         hosts = []
@@ -41,6 +43,7 @@ def _populate_hosts(self):
         self.hosts = hosts
         self.host = self.hosts[0]
 
+
     def _get_scheme(self):
         servers = self.specification.get('servers', [])
         schemes = []
@@ -50,6 +53,21 @@ def _get_scheme(self):
         scheme = 'https' if 'https' in schemes else 'http'
         return scheme
 
+
+    def _fetch_schema_from_spec(self, param_schema_ref:str) -> dict:
+        schema_spec_path = param_schema_ref.split('/')[1:]
+
+        if len(schema_spec_path) > 3:
+            logger.error('Schema spec $ref path should not be greater than 3 (excluding #)')
+            return {}
+
+        schema_data:dict = self.specification
+        for child_ele in schema_spec_path:
+            schema_data:dict = schema_data.get(child_ele, {})
+
+        return schema_data
+
+
     def _get_param_definition_schema(self, param: dict):
         '''Returns Model defined schema for the passed param'''
         param_schema = param.get('schema')
@@ -58,9 +76,7 @@ def _get_param_definition_schema(self, param: dict):
         if param_schema:
             param_schema_ref = param_schema.get('$ref')
             if param_schema_ref:
-                model_slug = param_schema_ref.split('/')[-1]
-                param_schema = self.specification.get(
-                    'components', {}).get('schemas', {}).get(model_slug, {})  # model schema
+                param_schema = self._fetch_schema_from_spec(param_schema_ref)
 
         return param_schema
 
@@ -75,20 +91,27 @@ def _get_response_definition_schema(self, responses: dict):
         '''
         for status_code in responses.keys():
             # below line could return: ["application/json", "application/xml"]
-            status_code_content_type_response = responses[status_code]['content'].keys()
-
-            for status_code_content_type in status_code_content_type_response:
-                status_code_content = responses[status_code]['content'][status_code_content_type].keys(
-                )
-                if 'parameters' in status_code_content:
-                    # done
-                    responses[status_code]['schema'] = responses[status_code]['content'][status_code_content_type]['parameters']
-                elif 'schema' in status_code_content:
-                    responses[status_code]['schema'] = self._get_param_definition_schema(
-                        responses[status_code]['content'][status_code_content_type])
+            content = responses[status_code].get('content', None)
+
+            if content:
+                status_code_content_type_responses = content.keys()
+                for status_code_content_type in status_code_content_type_responses:
+                    status_code_content = responses[status_code]['content'][status_code_content_type].keys()
+                    if 'parameters' in status_code_content:
+                        responses[status_code]['schema'] = responses[status_code]['content'][status_code_content_type]['parameters']
+                    elif 'schema' in status_code_content:
+                        responses[status_code]['schema'] = self._get_param_definition_schema(
+                            responses[status_code]['content'][status_code_content_type])
+
+            else:
+                # Fetch $ref schema directly
+                ref = responses[status_code].get('$ref', None)
+                if ref:
+                    responses[status_code]['schema'] = self._fetch_schema_from_spec(ref)
 
         return responses
 
+
     def _get_request_response_params(self):
         '''Returns Schema of requests and response params
 

src/offat/parsers/parser.py

@@ -11,7 +11,7 @@ class InvalidSpecVersion(Exception):
 class BaseParser:
     def __init__(self, file_or_url: str, spec: dict = None) -> None:
         if spec:
-            self.specification = spec
+            self.specification:dict = spec
             base_uri = ""
         else:
             self.specification, base_uri = read_from_filename(file_or_url)

src/offat/report/generator.py

@@ -1,24 +1,31 @@
+"""
+Report Generator utils
+"""
 from copy import deepcopy
 from html import escape
 from json import dumps as json_dumps
-from offat.report import templates
 from os.path import dirname, join as path_join
 from os import makedirs
 from rich.table import Table
 from yaml import dump as yaml_dump
 
 from .templates.table import TestResultTable
 from ..logger import logger, console
+from ..report import templates
 
 
 class ReportGenerator:
+    """can generate report in json,yaml,table and html formats"""
+
     @staticmethod
     def generate_html_report(results: list[dict]):
+        """generates html report from OFFAT results"""
         html_report_template_file_name = 'report.html'
         html_report_file_path = path_join(
-            dirname(templates.__file__), html_report_template_file_name)
+            dirname(templates.__file__), html_report_template_file_name
+        )
 
-        with open(html_report_file_path, 'r') as f:
+        with open(html_report_file_path, 'r', encoding='utf-8') as f:
             report_file_content = f.read()
 
         # TODO: validate report data to avoid HTML injection attacks.
@@ -27,7 +34,7 @@ def generate_html_report(results: list[dict]):
 
         # HTML escape data
         escaped_results = []
-        escape_keys = ["response_body"]
+        escape_keys = ['response_body']
         for result_dict in results:
             escaped_result_dict = {}
             for key, value in result_dict.items():
@@ -40,64 +47,88 @@ def generate_html_report(results: list[dict]):
                 escaped_results.append(escaped_result_dict)
 
         report_file_content = report_file_content.replace(
-            '{ results }', json_dumps(escaped_results))
+            '{ results }', json_dumps(escaped_results)
+        )
 
         return report_file_content
 
     @staticmethod
-    def handle_report_format(results: list[dict], report_format: str | None) -> str | Table:
+    def handle_report_format(
+        results: list[dict], report_format: str | None
+    ) -> str | Table:
+        """returns report in specified format"""
         result = None
 
         match report_format:
             case 'html':
                 logger.warning('HTML output format displays only basic data.')
                 result = ReportGenerator.generate_html_report(results=results)
             case 'yaml':
-                logger.warning('YAML output format needs to be sanitized before using it further.')
-                result = yaml_dump({
-                    'results': results,
-                })
+                logger.warning(
+                    'YAML output format needs to be sanitized before using it further.'
+                )
+                result = yaml_dump(
+                    {
+                        'results': results,
+                    }
+                )
             case 'json':
                 report_format = 'json'
-                result = json_dumps({
-                    'results': results,
-                })
+                result = json_dumps(
+                    {
+                        'results': results,
+                    }
+                )
             case _:  # default: CLI table
                 # TODO: filter failed requests first and then create new table for failed requests
                 report_format = 'table'
                 results_table = TestResultTable().generate_result_table(
-                    deepcopy(results))
+                    deepcopy(results)
+                )
                 result = results_table
 
         logger.info('Generated %s format report.', report_format.upper())
         return result
 
     @staticmethod
     def save_report(report_path: str | None, report_file_content: str | Table | None):
+        """saves/prints report to console"""
         if report_path != '/' and report_path:
             dir_name = dirname(report_path)
             if dir_name != '' and report_path:
                 makedirs(dir_name, exist_ok=True)
 
         # print to cli if report path and file content as absent else write to file location.
-        if report_path and report_file_content and not isinstance(report_file_content, Table):
-            with open(report_path, 'w') as f:
+        if (
+            report_path
+            and report_file_content
+            and not isinstance(report_file_content, Table)
+        ):
+            with open(report_path, 'w', encoding='utf-8') as f:
                 logger.info('Writing report to file: %s', report_path)
                 f.write(report_file_content)
         else:
             if isinstance(report_file_content, Table) and report_file_content.columns:
                 TestResultTable().print_table(report_file_content)
-            elif isinstance(report_file_content, Table) and not report_file_content.columns:
+            elif (
+                isinstance(report_file_content, Table)
+                and not report_file_content.columns
+            ):
                 logger.warning('No Columns found in Table.')
             else:
                 console.print(report_file_content)
 
     @staticmethod
-    def generate_report(results: list[dict], report_format: str | None, report_path: str | None):
+    def generate_report(
+        results: list[dict], report_format: str | None, report_path: str | None
+    ):
+        """main function used to generate report"""
         if report_path:
             report_format = report_path.split('.')[-1]
 
         formatted_results = ReportGenerator.handle_report_format(
-            results=results, report_format=report_format)
+            results=results, report_format=report_format
+        )
         ReportGenerator.save_report(
-            report_path=report_path, report_file_content=formatted_results)
+            report_path=report_path, report_file_content=formatted_results
+        )

src/offat/tester/tester_utils.py

@@ -43,7 +43,7 @@ def is_host_up(openapi_parser: SwaggerParser | OpenAPIv3Parser) -> bool:
         case _:
             proto = http_client.HTTPConnection
 
-    logger.info("Checking whether host %s:%d is available", host, port)
+    logger.info("Checking whether host %s:%s is available", host, port)
     try:
         conn = proto(host=host, port=port, timeout=5)
         conn.request("GET", "/")

src/offat/utils.py

@@ -189,6 +189,6 @@ def is_valid_url(url: str) -> bool:
         Any exception occurred during operation
     '''
     url_regex = re_compile(
-        r'https?://(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)'
+        r'https?:\/\/[a-z.-]+(:\d+)?.*'
     )
     return bool(match(url_regex, url))

src/pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "offat"
-version = "0.15.4"
+version = "0.15.5"
 description = "Offensive API tester tool automates checks for common API vulnerabilities"
 authors = ["Dhrumil Mistry <dhrumil.mistry@owasp.org>"]
 license = "MIT"