1 # Fedi API Block - An aggregator for fetching blocking data from fediverse nodes
2 # Copyright (C) 2023 Free Software Foundation
4 # This program is free software: you can redistribute it and/or modify
5 # it under the terms of the GNU Affero General Public License as published
6 # by the Free Software Foundation, either version 3 of the License, or
7 # (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU Affero General Public License for more details.
14 # You should have received a copy of the GNU Affero General Public License
15 # along with this program. If not, see <https://www.gnu.org/licenses/>.
17 from fba import config
19 from fba import instances
21 def fetch_peers(domain: str) -> list:
22 # DEBUG: print(f"DEBUG: domain({len(domain)})={domain},software='lemmy' - CALLED!")
23 if type(domain) != str:
24 raise ValueError(f"Parameter domain[]={type(domain)} is not 'str'")
26 raise ValueError(f"Parameter 'domain' is empty")
30 # DEBUG: print(f"DEBUG: domain='{domain}' is Lemmy, fetching JSON ...")
31 response = fba.get_response(domain, "/api/v3/site", fba.api_headers, (config.get("connection_timeout"), config.get("read_timeout")))
33 data = fba.json_from_response(response)
35 # DEBUG: print(f"DEBUG: response.ok={response.ok},response.status_code='{response.status_code}',data[]='{type(data)}'")
36 if not response.ok or response.status_code >= 400:
37 print("WARNING: Could not reach any JSON API:", domain)
38 instances.update_last_error(domain, response)
39 elif response.ok and isinstance(data, list):
40 print(f"UNSUPPORTED: domain='{domain}' returned a list: '{data}'")
41 elif "federated_instances" in data:
42 # DEBUG: print(f"DEBUG: Found federated_instances for domain='{domain}'")
43 peers = peers + fba.add_peers(data["federated_instances"])
44 # DEBUG: print("DEBUG: Added instance(s) to peers")
46 print("WARNING: JSON response does not contain 'federated_instances':", domain)
47 instances.update_last_error(domain, response)
49 except BaseException as e:
50 print(f"WARNING: Exception during fetching JSON: domain='{domain}',exception[{type(e)}]:'{str(e)}'")
52 # DEBUG: print(f"DEBUG: Adding '{len(peers)}' for domain='{domain}'")
53 instances.set("total_peers", domain, len(peers))
55 # DEBUG: print(f"DEBUG: Updating last_instance_fetch for domain='{domain}' ...")
56 instances.update_last_instance_fetch(domain)
58 # DEBUG: print("DEBUG: Returning peers[]:", type(peers))