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/>.
20 from fba import blacklist
22 from fba.helpers import tidyup
24 def update_reason(reason: str, blocker: str, blocked: str, block_level: str):
25 # DEBUG: print(f"DEBUG: reason='{reason}',blocker={blocker},blocked={blocked},block_level={block_level} - CALLED!")
26 if not isinstance(reason, str) and reason is not None:
27 raise ValueError(f"Parameter reason[]='{type(reason)}' is not 'str'")
28 elif not isinstance(blocker, str):
29 raise ValueError(f"Parameter blocker[]='{type(blocker)}' is not 'str'")
31 raise ValueError("Parameter 'blocker' is empty")
32 elif not isinstance(blocked, str):
33 raise ValueError(f"Parameter blocked[]='{type(blocked)}' is not 'str'")
35 raise ValueError("Parameter 'blocked' is empty")
36 elif not isinstance(block_level, str):
37 raise ValueError(f"Parameter block_level[]='{type(block_level)}' is not 'str'")
38 elif block_level == "":
39 raise ValueError("Parameter 'block_level' is empty")
40 elif block_level == "accept":
41 raise ValueError("Accepted domains are not wanted here")
43 # DEBUG: print("DEBUG: Updating block reason:", reason, blocker, blocked, block_level)
45 "UPDATE blocks SET reason = ?, last_seen = ? WHERE blocker = ? AND blocked = ? AND block_level = ? AND (reason IS NULL OR reason = '') LIMIT 1",
54 # DEBUG: print("DEBUG: EXIT!")
56 def update_last_seen(blocker: str, blocked: str, block_level: str):
57 # DEBUG: print("DEBUG: Updating last_seen for:", blocker, blocked, block_level)
58 if not isinstance(blocker, str):
59 raise ValueError(f"Parameter blocker[]='{type(blocker)}' is not 'str'")
61 raise ValueError("Parameter 'blocker' is empty")
62 elif not isinstance(blocked, str):
63 raise ValueError(f"Parameter blocked[]='{type(blocked)}' is not 'str'")
65 raise ValueError("Parameter 'blocked' is empty")
66 elif not isinstance(block_level, str):
67 raise ValueError(f"Parameter block_level[]='{type(block_level)}' is not 'str'")
68 elif block_level == "":
69 raise ValueError("Parameter 'block_level' is empty")
70 elif block_level == "accept":
71 raise ValueError("Accepted domains are not wanted here")
74 "UPDATE blocks SET last_seen = ? WHERE blocker = ? AND blocked = ? AND block_level = ? LIMIT 1",
82 # DEBUG: print("DEBUG: EXIT!")
84 def is_instance_blocked(blocker: str, blocked: str, block_level: str) -> bool:
85 # DEBUG: print(f"DEBUG: blocker={blocker},blocked={blocked},block_level={block_level} - CALLED!")
86 if not isinstance(blocker, str):
87 raise ValueError(f"Parameter blocker[]='{type(blocker)}' is not of type 'str'")
89 raise ValueError("Parameter 'blocker' is empty")
90 elif not isinstance(blocked, str):
91 raise ValueError(f"Parameter blocked[]='{type(blocked)}' is not of type 'str'")
93 raise ValueError("Parameter 'blocked' is empty")
94 elif not isinstance(block_level, str):
95 raise ValueError(f"Parameter block_level[]='{type(block_level)}' is not of type 'str'")
96 elif block_level == "":
97 raise ValueError("Parameter 'block_level' is empty")
98 elif block_level == "accept":
99 raise ValueError("Accepted domains are not wanted here")
102 "SELECT * FROM blocks WHERE blocker = ? AND blocked = ? AND block_level = ? LIMIT 1",
110 is_blocked = fba.cursor.fetchone() is not None
112 # DEBUG: print(f"DEBUG: is_blocked='{is_blocked}' - EXIT!")
115 def add_instance(blocker: str, blocked: str, reason: str, block_level: str):
116 # DEBUG: print("DEBUG: blocker,blocked,reason,block_level:", blocker, blocked, reason, block_level)
117 if not isinstance(blocker, str):
118 raise ValueError(f"Parameter blocker[]='{type(blocker)}' is not 'str'")
120 raise ValueError("Parameter 'blocker' is empty")
121 elif not validators.domain(blocker.split("/")[0]):
122 raise ValueError(f"Bad blocker='{blocker}'")
123 elif not isinstance(blocked, str):
124 raise ValueError(f"Parameter blocked[]='{type(blocked)}' is not 'str'")
126 raise ValueError("Parameter 'blocked' is empty")
127 elif not isinstance(block_level, str):
128 raise ValueError(f"Parameter block_level[]='{type(block_level)}' is not of type 'str'")
129 elif block_level == "":
130 raise ValueError("Parameter 'block_level' is empty")
131 elif not validators.domain(blocked.split("/")[0]):
132 raise ValueError(f"Bad blocked='{blocked}'")
133 elif blacklist.is_blacklisted(blocker):
134 raise Exception(f"blocker='{blocker}' is blacklisted but function invoked")
135 elif blacklist.is_blacklisted(blocked):
136 raise Exception(f"blocked='{blocked}' is blacklisted but function invoked")
137 elif block_level == "accept":
138 raise ValueError("Accepted domains are not wanted here")
140 if reason is not None:
141 # Maybe needs cleaning
142 reason = tidyup.reason(reason)
144 print(f"INFO: New block: blocker='{blocker}',blocked='{blocked}',reason='{reason}',block_level='{block_level}'")
147 "INSERT INTO blocks (blocker, blocked, reason, block_level, first_seen, last_seen) VALUES (?, ?, ?, ?, ?, ?)",
157 # DEBUG: print("DEBUG: EXIT!")