chom (#406)

Author: Qelxiros

conditional/util/context_processors.py

@@ -1,5 +1,8 @@
 # pylint: disable=bare-except
 
+import hashlib
+import urllib
+
 from conditional import app
 from conditional.models.models import FreshmanAccount
 from conditional.util.cache import service_cache
@@ -31,11 +34,31 @@ def check_current_student(username):
     return ldap_is_current_student(member)
 
 
+@service_cache(maxsize=256)
+def get_rit_image(username: str) -> str:
+    if username:
+        addresses = [username + "@rit.edu", username + "@g.rit.edu"]
+        for addr in addresses:
+            url = (
+                "https://gravatar.com/avatar/"
+                + hashlib.md5(addr.encode("utf8")).hexdigest()
+                + ".jpg?d=404&s=250"
+            )
+            try:
+                with urllib.request.urlopen(url) as gravatar:
+                    if gravatar.getcode() == 200:
+                        return url
+            except:
+                continue
+    return "https://www.gravatar.com/avatar/freshmen?d=mp&f=y"
+
+
 @app.context_processor
 def utility_processor():
     return {
         "get_csh_name": get_csh_name,
         "get_freshman_name": get_freshman_name,
+        "get_rit_image": get_rit_image,
         "get_member_name": get_member_name,
         "check_current_student": check_current_student,
     }