Case insensitive avatar image search

utils.py

@@ -769,3 +769,14 @@ def searchBoxPosts(baseDir: str, nickname: str, domain: str,
                 if len(res) >= maxResults:
                     return res
     return res
+
+
+def getFileCaseInsensitive(filename: str) -> str:
+    """Returns a case specific filename given a case insensitive version of it
+    """
+    directory, filename = os.path.split(filename)
+    directory, filename = (directory or '.'), filename.lower()
+    for f in os.listdir(directory):
+        newFilename = os.path.join(directory, f)
+        if os.path.isfile(newFilename) and f.lower() == filename:
+            return newFilename

webinterface.py

@@ -24,6 +24,7 @@ from ssb import getSSBAddress
 from tox import getToxAddress
 from matrix import getMatrixAddress
 from donate import getDonationUrl
+from utils import getFileCaseInsensitive
 from utils import searchBoxPosts
 from utils import isBlogPost
 from utils import updateRecentPostsCache
@@ -254,7 +255,8 @@ def getPersonAvatarUrl(baseDir: str, personUrl: str, personCache: {}) -> str:
         return None
     # get from locally stored image
     actorStr = personJson['id'].replace('/', '-')
-    avatarImagePath = baseDir + '/cache/avatars/' + actorStr
+    avatarImagePath = \
+        getFileCaseInsensitive(baseDir + '/cache/avatars/' + actorStr
     if os.path.isfile(avatarImagePath + '.png'):
         return '/avatars/' + actorStr + '.png'
     elif os.path.isfile(avatarImagePath + '.jpg'):