Ignore similar chars in random_string (#7242)

* Added the option to ignore certain characters

This can be usefull for eliminating confusion.

* Removed the loop and added each char_sets

The variable name is not known inside the loop so updating it does not work.

* Changelog fragment file

* Forgot the file extention for the fragment yaml file

* Update plugins/lookup/random_string.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update plugins/lookup/random_string.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update plugins/lookup/random_string.py

Co-authored-by: Felix Fontein <felix@fontein.de>

---------

Co-authored-by: Felix Fontein <felix@fontein.de>
(cherry picked from commit c3fd14e)

changelogs/fragments/7242_ignore_similar_chars.yml

@@ -0,0 +1,2 @@
+minor_changes:
+ - random_string - added new ``ignore_similar_chars`` and ``similar_chars`` option to ignore certain chars (https://github.com/ansible-collections/community.general/pull/7242).

plugins/lookup/random_string.py

@@ -80,6 +80,19 @@
  - Override all values of O(numbers), O(upper), O(lower), and O(special) with
  the given list of characters.
  type: str
+ ignore_similar_chars:
+ description:
+ - Ignore similar characters, such as V(l) and V(1), or V(O) and V(0).
+ - These characters can be configured in O(similar_chars).
+ default: false
+ type: bool
+ version_added: 7.5.0
+ similar_chars:
+ description:
+ - Overide a list of characters not to be use in the string.
+ default: "il1LoO0"
+ type: str
+ version_added: 7.5.0
  base64:
  description:
  - Returns base64 encoded string.
@@ -173,9 +186,17 @@ def run(self, terms, variables=None, **kwargs):
  length = self.get_option("length")
  base64_flag = self.get_option("base64")
  override_all = self.get_option("override_all")
+ ignore_similar_chars = self.get_option("ignore_similar_chars")
+ similar_chars = self.get_option("similar_chars")
  values = ""
  available_chars_set = ""
 
+ if ignore_similar_chars:
+ number_chars = "".join([sc for sc in number_chars if sc not in similar_chars])
+ lower_chars = "".join([sc for sc in lower_chars if sc not in similar_chars])
+ upper_chars = "".join([sc for sc in upper_chars if sc not in similar_chars])
+ special_chars = "".join([sc for sc in special_chars if sc not in similar_chars])
+
  if override_all:
  # Override all the values
  available_chars_set = override_all