Clear account qrcodes at startup

daemon.py

@@ -60,6 +60,7 @@ from donate import get_donation_url
 from donate import set_donation_url
 from donate import get_website
 from donate import set_website
+from person import clear_person_qrcodes
 from person import add_alternate_domains
 from person import add_actor_update_timestamp
 from person import set_person_notes
@@ -13821,6 +13822,11 @@ class PubServer(BaseHTTPRequestHandler):
         qr_filename = \
             acct_dir(base_dir, nickname, domain) + '/qrcode.png'
         if os.path.isfile(qr_filename):
+            if self._etag_exists(qr_filename):
+                # The file has not changed
+                self._304()
+                return
+
             tries = 0
             media_binary = None
             while tries < 5:
@@ -20645,6 +20651,7 @@ def run_daemon(crawlers_allowed: [],
         save_domain_qrcode(base_dir, 'http', i2p_domain)
     else:
         save_domain_qrcode(base_dir, http_prefix, httpd.domain_full)
+    clear_person_qrcodes(base_dir)
     httpd.http_prefix = http_prefix
     httpd.debug = debug
     httpd.federation_list = fed_list.copy()

person.py

@@ -581,6 +581,30 @@ def create_group(base_dir: str, nickname: str, domain: str, port: int,
     return private_key_pem, public_key_pem, new_person, webfinger_endpoint
 
 
+def clear_person_qrcodes(base_dir: str) -> None:
+    """Clears qrcodes for all accounts
+    """
+    for _, dirs, _ in os.walk(base_dir + '/accounts'):
+        for handle in dirs:
+            if '@' not in handle:
+                continue
+            nickname = handle.split('@')[0]
+            domain = handle.split('@')[1]
+            qrcode_filename = \
+                acct_dir(base_dir, nickname, domain) + '/qrcode.png'
+            if os.path.isfile(qrcode_filename):
+                try:
+                    os.remove(qrcode_filename)
+                except OSError:
+                    pass
+            if os.path.isfile(qrcode_filename + '.etag'):
+                try:
+                    os.remove(qrcode_filename + '.etag')
+                except OSError:
+                    pass
+        break
+
+
 def save_person_qrcode(base_dir: str,
                        nickname: str, domain: str, qrcode_domain: str,
                        port: int, scale=6) -> None: