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/>.
21 from fba import blacklist
23 from fba.helpers import tidyup
25 def update_reason(reason: str, blocker: str, blocked: str, block_level: str):
26 # DEBUG: print(f"DEBUG: reason='{reason}',blocker={blocker},blocked={blocked},block_level={block_level} - CALLED!")
27 if not isinstance(reason, str) and reason is not None:
28 raise ValueError(f"Parameter reason[]='{type(reason)}' is not 'str'")
29 elif not isinstance(blocker, str):
30 raise ValueError(f"Parameter blocker[]='{type(blocker)}' is not 'str'")
32 raise ValueError("Parameter 'blocker' is empty")
33 elif not isinstance(blocked, str):
34 raise ValueError(f"Parameter blocked[]='{type(blocked)}' is not 'str'")
36 raise ValueError("Parameter 'blocked' is empty")
37 elif not isinstance(block_level, str):
38 raise ValueError(f"Parameter block_level[]='{type(block_level)}' is not 'str'")
39 elif block_level == "":
40 raise ValueError("Parameter 'block_level' is empty")
41 elif block_level == "accept":
42 raise ValueError("Accepted domains are not wanted here")
44 # DEBUG: print("DEBUG: Updating block reason:", reason, blocker, blocked, block_level)
46 "UPDATE blocks SET reason = ?, last_seen = ? WHERE blocker = ? AND blocked = ? AND block_level = ? AND (reason IS NULL OR reason = '') LIMIT 1",
55 # DEBUG: print(f"DEBUG: fba.cursor.rowcount={fba.cursor.rowcount}")
56 if fba.cursor.rowcount == 0:
57 raise Exception(f"Did not update any rows: domain='{domain}',fields()={len(fields)}")
59 # DEBUG: print("DEBUG: EXIT!")
61 def update_last_seen(blocker: str, blocked: str, block_level: str):
62 # DEBUG: print("DEBUG: Updating last_seen for:", blocker, blocked, block_level)
63 if not isinstance(blocker, str):
64 raise ValueError(f"Parameter blocker[]='{type(blocker)}' is not 'str'")
66 raise ValueError("Parameter 'blocker' is empty")
67 elif not isinstance(blocked, str):
68 raise ValueError(f"Parameter blocked[]='{type(blocked)}' is not 'str'")
70 raise ValueError("Parameter 'blocked' is empty")
71 elif not isinstance(block_level, str):
72 raise ValueError(f"Parameter block_level[]='{type(block_level)}' is not 'str'")
73 elif block_level == "":
74 raise ValueError("Parameter 'block_level' is empty")
75 elif block_level == "accept":
76 raise ValueError("Accepted domains are not wanted here")
79 "UPDATE blocks SET last_seen = ? WHERE blocker = ? AND blocked = ? AND block_level = ? LIMIT 1",
87 # DEBUG: print(f"DEBUG: fba.cursor.rowcount={fba.cursor.rowcount}")
88 if fba.cursor.rowcount == 0:
89 raise Exception(f"Did not update any rows: domain='{domain}',fields()={len(fields)}")
91 # DEBUG: print("DEBUG: EXIT!")
93 def is_instance_blocked(blocker: str, blocked: str, block_level: str) -> bool:
94 # DEBUG: print(f"DEBUG: blocker={blocker},blocked={blocked},block_level={block_level} - CALLED!")
95 if not isinstance(blocker, str):
96 raise ValueError(f"Parameter blocker[]='{type(blocker)}' is not of type 'str'")
98 raise ValueError("Parameter 'blocker' is empty")
99 elif not isinstance(blocked, str):
100 raise ValueError(f"Parameter blocked[]='{type(blocked)}' is not of type 'str'")
102 raise ValueError("Parameter 'blocked' is empty")
103 elif not isinstance(block_level, str):
104 raise ValueError(f"Parameter block_level[]='{type(block_level)}' is not of type 'str'")
105 elif block_level == "":
106 raise ValueError("Parameter 'block_level' is empty")
107 elif block_level == "accept":
108 raise ValueError("Accepted domains are not wanted here")
111 "SELECT * FROM blocks WHERE blocker = ? AND blocked = ? AND block_level = ? LIMIT 1",
119 is_blocked = fba.cursor.fetchone() is not None
121 # DEBUG: print(f"DEBUG: is_blocked='{is_blocked}' - EXIT!")
124 def add_instance(blocker: str, blocked: str, reason: str, block_level: str):
125 # DEBUG: print("DEBUG: blocker,blocked,reason,block_level:", blocker, blocked, reason, block_level)
126 if not isinstance(blocker, str):
127 raise ValueError(f"Parameter blocker[]='{type(blocker)}' is not 'str'")
129 raise ValueError("Parameter 'blocker' is empty")
130 elif not validators.domain(blocker.split("/")[0]):
131 raise ValueError(f"Bad blocker='{blocker}'")
132 elif not isinstance(blocked, str):
133 raise ValueError(f"Parameter blocked[]='{type(blocked)}' is not 'str'")
135 raise ValueError("Parameter 'blocked' is empty")
136 elif not isinstance(block_level, str):
137 raise ValueError(f"Parameter block_level[]='{type(block_level)}' is not of type 'str'")
138 elif block_level == "":
139 raise ValueError("Parameter 'block_level' is empty")
140 elif not validators.domain(blocked.split("/")[0]):
141 raise ValueError(f"Bad blocked='{blocked}'")
142 elif blacklist.is_blacklisted(blocker):
143 raise Exception(f"blocker='{blocker}' is blacklisted but function invoked")
144 elif blacklist.is_blacklisted(blocked):
145 raise Exception(f"blocked='{blocked}' is blacklisted but function invoked")
146 elif block_level == "accept":
147 raise ValueError("Accepted domains are not wanted here")
149 if reason is not None:
150 # Maybe needs cleaning
151 reason = tidyup.reason(reason)
153 print(f"INFO: New block: blocker='{blocker}',blocked='{blocked}',reason='{reason}',block_level='{block_level}'")
156 "INSERT INTO blocks (blocker, blocked, reason, block_level, first_seen, last_seen) VALUES (?, ?, ?, ?, ?, ?)",
166 # DEBUG: print("DEBUG: EXIT!")