Fix for option --csv (#29)

* importlib_resources does not provide read_text anymore from python3.9 :/

* Bump version

* Fix mypy

---------

Co-authored-by: tristanlatr <tristanlatr@users.noreply.github.com>

burpa/__version__.py

@@ -1,2 +1,2 @@
 __author__ = 'Adel "0x4d31" Karimi, and other contributors'
-__version__ = '0.3.11'
+__version__ = '0.3.12'

burpa/_burpa.py

@@ -38,7 +38,7 @@
 from ._burp_commander import BurpCommander
 from ._error import BurpaError
 from ._utils import (get_valid_filename, parse_commas_separated_str, ensure_scheme, 
-                     parse_targets, setup_logger, perform, is_timenow_between, strip_tags)
+                     parse_targets, setup_logger, perform, is_timenow_between, strip_tags, read_text)
 from .__version__ import __version__, __author__
 
 ###################################################
@@ -671,7 +671,7 @@ def generate_csv(io: TextIO, issues: List[Dict[str, Any]], report_datetime:str)
         return
 
     # Add CWE information
-    jsondata = json.loads(importlib_resources.read_text('burpa', 'issue_defs.json'))
+    jsondata = json.loads(read_text('burpa', 'issue_defs.json'))
 
     for i in issues:
         # Discard request/response data.

burpa/_utils.py

@@ -9,7 +9,8 @@
 import sys
 import concurrent.futures
 from datetime import datetime, time
-from typing import Any, Callable, Dict, Iterable, Iterator, List, Optional, Tuple
+from typing import Any, Callable, Dict, Iterable, Iterator, List, Optional, TextIO, Tuple
+from importlib_resources import files
 
 def get_valid_filename(s: str) -> str:
     '''Return the given string converted to a string that can be used for a clean filename. Stolen from Django, I think.'''
@@ -128,7 +129,7 @@ def get_version(s:str) -> Tuple[int, ...]:
     Parse a version string like <major>.<minor>.<micro> into a tuple of ints.
     """
     parts = s.strip().split('.')
-    intparts = []
+    intparts: 'list[int]' = []
 
     for p in parts:
         try:
@@ -153,6 +154,32 @@ def get_version(s:str) -> Tuple[int, ...]:
 def strip_tags(html:str) -> str:
     return _tag.sub('', html)
 
+def open_text(
+    package: str,
+    resource: str,
+    encoding: str = 'utf-8',
+    errors: str = 'strict',
+) -> TextIO:
+    """Return a file-like object opened for text reading of the resource."""
+    return (files(package) / resource).open( # type:ignore
+        'r', encoding=encoding, errors=errors
+    )
+
+
+def read_text(
+    package: str,
+    resource: str,
+    encoding: str = 'utf-8',
+    errors: str = 'strict',
+) -> str:
+    """Return the decoded string of the resource.
+
+    The decoding-related arguments have the same semantics as those of
+    bytes.decode().
+    """
+    with open_text(package, resource, encoding, errors) as fp:
+        return fp.read()
+
 if __name__ == "__main__":
 
     assert get_version("2.2.0") == (2,2,0)