Customizable trusted sources for username matching

Enable customization of trusted sources for username matching in
settings. This feature allows to define and manage the trusted data
sources for username matching from the configuration.

Signed-off-by: Jose Javier Merchante <jjmerchante@bitergia.com>

config/settings/config_testing.py

@@ -18,6 +18,8 @@
 
 SORTINGHAT_GENDERIZE_API_KEY = 'fake-key'
 
+MATCH_TRUSTED_SOURCES = ['github', 'gitlab', 'slack']
+
 DEFAULT_AUTO_FIELD = 'django.db.models.AutoField'
 
 INSTALLED_APPS = [

config/settings/devel.py

@@ -181,3 +181,6 @@
 }
 
 MULTI_TENANT = os.environ.get('SORTINGHAT_MULTI_TENANT', 'False').lower() in ('true', '1')
+
+MATCH_TRUSTED_SOURCES = os.environ.get('SORTINGHAT_MATCH_TRUSTED_SOURCES',
+                                       'github,gitlab,slack').split(',')

releases/unreleased/customizable-trusted-sources-for-username-matching.yml

@@ -0,0 +1,9 @@
+---
+title: Customizable trusted sources for username matching
+category: added
+author: Jose Javier Merchante <jjmerchante@bitergia.com>
+issue: null
+notes: >
+  Enable customization of trusted sources for username matching in
+  settings. This feature allows to define and manage the trusted data
+  sources for username matching from the configuration.

sortinghat/config/settings.py

@@ -379,3 +379,10 @@
 
 PERMISSION_GROUPS_LIST_PATH = os.environ.get('SORTINGHAT_PERMISSION_GROUPS_LIST_PATH',
                                             os.path.join(BASE_DIR, 'config', 'permission_groups.json'))
+
+#
+# Trusted data sources for matching by username
+#
+
+MATCH_TRUSTED_SOURCES = os.environ.get('SORTINGHAT_MATCH_TRUSTED_SOURCES',
+                                       'github,gitlab,slack').split(',')

sortinghat/core/recommendations/matching.py

@@ -26,6 +26,8 @@
 import numpy
 
 from collections import defaultdict
+
+from django.conf import settings
 from django.forms.models import model_to_dict
 
 from ..db import (find_individual_by_uuid)
@@ -39,8 +41,6 @@
 EMAIL_ADDRESS_REGEX = r"^(?P<email>[^\s@]+@[^\s@.]+\.[^\s@]+)$"
 NAME_REGEX = r"^\w+\s\w+"
 
-MATCH_USERNAME_SOURCES = ['github', 'gitlab', 'slack']
-
 
 def recommend_matches(source_uuids, target_uuids,
                       criteria, exclude=True,
@@ -199,7 +199,7 @@ def _filter_criteria(df, c, strict=True, match_source=False):
         if match_source and c == 'username':
             cols += ['source']
             cdf = df[cols]
-            cdf = cdf[cdf['source'].isin(MATCH_USERNAME_SOURCES)]
+            cdf = cdf[cdf['source'].isin(settings.MATCH_TRUSTED_SOURCES)]
         else:
             cdf = df[cols]
         cdf = cdf.dropna(subset=[c])