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/>.
22 from fba import blacklist
23 from fba import blocks
24 from fba import config
27 from fba import instances
28 from fba import network
30 from fba.helpers import tidyup
34 "Silenced instances" : "Silenced servers",
35 "Suspended instances" : "Suspended servers",
36 "Limited instances" : "Limited servers",
37 "Filtered media" : "Filtered media",
38 # Mappuing German -> English
39 "Gesperrte Server" : "Suspended servers",
40 "Gefilterte Medien" : "Filtered media",
41 "Stummgeschaltete Server" : "Silenced servers",
43 "停止済みのサーバー" : "Suspended servers",
44 "制限中のサーバー" : "Limited servers",
45 "メディアを拒否しているサーバー": "Filtered media",
46 "サイレンス済みのサーバー" : "Silenced servers",
48 "שרתים מושעים" : "Suspended servers",
49 "מדיה מסוננת" : "Filtered media",
50 "שרתים מוגבלים" : "Silenced servers",
52 "Serveurs suspendus" : "Suspended servers",
53 "Médias filtrés" : "Filtered media",
54 "Serveurs limités" : "Limited servers",
55 "Serveurs modérés" : "Limited servers",
58 def fetch_blocks_from_about(domain: str) -> dict:
59 # DEBUG: print(f"DEBUG: domain='{domain}' - CALLED!")
60 if not isinstance(domain, str):
61 raise ValueError(f"Parameter domain[]='{type(domain)}' is not 'str'")
63 raise ValueError("Parameter 'domain' is empty")
65 # DEBUG: print("DEBUG: Fetching mastodon blocks from domain:", domain)
67 "Suspended servers": [],
68 "Filtered media" : [],
69 "Limited servers" : [],
70 "Silenced servers" : [],
74 doc = bs4.BeautifulSoup(
75 network.fetch_response(
79 (config.get("connection_timeout"), config.get("read_timeout"))
83 except BaseException as exception:
84 print("ERROR: Cannot fetch from domain:", domain, exception)
85 instances.update_last_error(domain, exception)
88 for header in doc.find_all("h3"):
89 header_text = tidyup.reason(header.text)
91 # DEBUG: print(f"DEBUG: header_text='{header_text}'")
92 if header_text in language_mapping:
93 # DEBUG: print(f"DEBUG: header_text='{header_text}'")
94 header_text = language_mapping[header_text]
96 print(f"WARNING: header_text='{header_text}' not found in language mapping table")
98 if header_text in blocklist or header_text.lower() in blocklist:
99 # replaced find_next_siblings with find_all_next to account for instances that e.g. hide lists in dropdown menu
100 for line in header.find_all_next("table")[0].find_all("tr")[1:]:
101 blocklist[header_text].append(
103 "domain": tidyup.domain(line.find("span").text),
104 "hash" : tidyup.domain(line.find("span")["title"][9:]),
105 "reason": tidyup.reason(line.find_all("td")[1].text),
109 print(f"WARNING: header_text='{header_text}' not found in blocklist()={len(blocklist)}")
111 # DEBUG: print("DEBUG: Returning blocklist for domain:", domain)
113 "reject" : blocklist["Suspended servers"],
114 "media_removal" : blocklist["Filtered media"],
115 "followers_only": blocklist["Limited servers"] + blocklist["Silenced servers"],
118 def fetch_blocks(domain: str, origin: str, nodeinfo_url: str):
119 # DEBUG: print(f"DEBUG: domain='{domain}',origin='{origin}',nodeinfo_url='{nodeinfo_url}' - CALLED!")
120 if not isinstance(domain, str):
121 raise ValueError(f"Parameter domain[]='{type(domain)}' is not 'str'")
123 raise ValueError("Parameter 'domain' is empty")
124 elif not isinstance(origin, str) and origin is not None:
125 raise ValueError(f"Parameter origin[]='{type(origin)}' is not 'str'")
127 raise ValueError("Parameter 'origin' is empty")
128 elif not isinstance(nodeinfo_url, str):
129 raise ValueError(f"Parameter nodeinfo_url[]='{type(nodeinfo_url)}' is not 'str'")
130 elif nodeinfo_url == "":
131 raise ValueError("Parameter 'nodeinfo_url' is empty")
133 # No CSRF by default, you don't have to add network.api_headers by yourself here
137 # DEBUG: print(f"DEBUG: Checking CSRF for domain='{domain}'")
138 headers = csrf.determine(domain, dict())
139 except network.exceptions as exception:
140 print(f"WARNING: Exception '{type(exception)}' during checking CSRF (fetch_blocks,{__name__}) - EXIT!")
144 # json endpoint for newer mastodongs
145 found_blocks = list()
150 "media_removal" : [],
151 "followers_only": [],
152 "report_removal": [],
155 # DEBUG: print("DEBUG: Querying API domain_blocks:", domain)
156 data = network.get_json_api(
158 "/api/v1/instance/domain_blocks",
160 (config.get("connection_timeout"), config.get("read_timeout"))
163 if "error_message" in data:
164 print(f"WARNING: Was not able to fetch domain_blocks from domain='{domain}': status_code='{data['status_code']}',error_message='{data['error_message']}'")
165 instances.update_last_error(domain, data)
167 elif "json" in data and "error" in data["json"]:
168 print(f"WARNING: JSON API returned error message: '{data['json']['error']}'")
169 instances.update_last_error(domain, data)
173 blocklist = data["json"]
175 if len(blocklist) > 0:
176 print(f"INFO: Checking {len(blocklist)} entries from domain='{domain}',software='mastodon' ...")
177 for block in blocklist:
179 # DEBUG: print(f"DEBUG: block[{type(block)}]='{block}'")
181 "domain": block["domain"],
182 "hash" : block["digest"],
183 "reason": block["comment"]
186 # DEBUG: print("DEBUG: severity,domain,hash,comment:", block['severity'], block['domain'], block['digest'], block['comment'])
187 if block['severity'] == 'suspend':
188 # DEBUG: print(f"DEBUG: Adding entry='{entry}' with severity='{block['severity']}' ...")
189 rows['reject'].append(entry)
190 elif block['severity'] == 'silence':
191 # DEBUG: print(f"DEBUG: Adding entry='{entry}' with severity='{block['severity']}' ...")
192 rows['followers_only'].append(entry)
193 elif block['severity'] == 'reject_media':
194 # DEBUG: print(f"DEBUG: Adding entry='{entry}' with severity='{block['severity']}' ...")
195 rows['media_removal'].append(entry)
196 elif block['severity'] == 'reject_reports':
197 # DEBUG: print(f"DEBUG: Adding entry='{entry}' with severity='{block['severity']}' ...")
198 rows['report_removal'].append(entry)
200 print("WARNING: Unknown severity:", block['severity'], block['domain'])
202 # DEBUG: print(f"DEBUG: domain='{domain}' has returned zero rows, trying /about/more page ...")
203 rows = fetch_blocks_from_about(domain)
205 print(f"INFO: Checking {len(rows.items())} entries from domain='{domain}',software='mastodon' ...")
206 for block_level, blocklist in rows.items():
207 # DEBUG: print("DEBUG: domain,block_level,blocklist():", domain, block_level, len(blocklist))
208 block_level = tidyup.domain(block_level)
210 # DEBUG: print("DEBUG: AFTER-block_level:", block_level)
211 if block_level == "":
212 print("WARNING: block_level is empty, domain:", domain)
215 # DEBUG: print(f"DEBUG: Checking {len(blocklist)} entries from domain='{domain}',software='mastodon',block_level='{block_level}' ...")
216 for block in blocklist:
217 # DEBUG: print(f"DEBUG: block[]='{type(block)}'")
218 blocked, blocked_hash, reason = block.values()
219 # DEBUG: print(f"DEBUG: blocked='{blocked}',blocked_hash='{blocked_hash}',reason='{reason}':")
220 blocked = tidyup.domain(blocked)
221 reason = tidyup.reason(reason) if reason is not None and reason != "" else None
222 # DEBUG: print(f"DEBUG: blocked='{blocked}',reason='{reason}' - AFTER!")
225 print("WARNING: blocked is empty:", domain)
227 elif blacklist.is_blacklisted(blocked):
228 # DEBUG: print(f"DEBUG: blocked='{blocked}' is blacklisted - skipping!")
230 elif blocked.count("*") > 0:
231 # Doing the hash search for instance names as well to tidy up DB
233 "SELECT domain, origin, nodeinfo_url FROM instances WHERE hash = ? LIMIT 1", [blocked_hash]
235 searchres = fba.cursor.fetchone()
237 # DEBUG: print(f"DEBUG: searchres[]='{type(searchres)}'")
238 if searchres is None:
239 print(f"WARNING: Cannot deobsfucate blocked='{blocked}',blocked_hash='{blocked_hash}' - SKIPPED!")
242 # DEBUG: print("DEBUG: Updating domain: ", searchres[0])
243 blocked = searchres[0]
244 origin = searchres[1]
245 nodeinfo_url = searchres[2]
247 # DEBUG: print("DEBUG: Looking up instance by domain:", blocked)
248 if not validators.domain(blocked):
249 print(f"WARNING: blocked='{blocked}',software='mastodon' is not a valid domain name - skipped!")
251 elif blocked.split(".")[-1] == "arpa":
252 print(f"WARNING: blocked='{blocked}' is a reversed .arpa domain and should not be used generally.")
254 elif not instances.is_registered(blocked):
255 # DEBUG: print(f"DEBUG: Domain blocked='{blocked}' wasn't found, adding ..., domain='{domain}',origin='{origin}',nodeinfo_url='{nodeinfo_url}'")
256 instances.add(blocked, domain, inspect.currentframe().f_code.co_name, nodeinfo_url)
257 elif not validators.domain(blocked):
258 print(f"WARNING: blocked='{blocked}',software='mastodon' is not a valid domain name - skipped!")
261 # DEBUG: print("DEBUG: Looking up instance by domain:", blocked)
262 if not validators.domain(blocked):
263 print(f"WARNING: blocked='{blocked}',software='mastodon' is not a valid domain name - skipped!")
265 elif blocked.split(".")[-1] == "arpa":
266 print(f"WARNING: blocked='{blocked}' is a reversed .arpa domain and should not be used generally.")
268 elif not instances.is_registered(blocked):
269 # DEBUG: print("DEBUG: Hash wasn't found, adding:", blocked, domain)
270 instances.add(blocked, domain, inspect.currentframe().f_code.co_name, nodeinfo_url)
272 blocking = blocked if blocked.count("*") <= 1 else blocked_hash
273 # DEBUG: print(f"DEBUG: blocking='{blocking}',blocked='{blocked}',blocked_hash='{blocked_hash}'")
275 if not blocks.is_instance_blocked(domain, blocked, block_level):
276 # DEBUG: print("DEBUG: Blocking:", domain, blocked, block_level)
277 blocks.add_instance(domain, blocking, reason, block_level)
279 if block_level == "reject":
280 found_blocks.append({
285 # DEBUG: print(f"DEBUG: Updating block last seen and reason for domain='{domain}',blocking='{blocking}' ...")
286 blocks.update_last_seen(domain, blocking, block_level)
287 blocks.update_reason(reason, domain, blocking, block_level)
289 # DEBUG: print("DEBUG: Committing changes ...")
290 fba.connection.commit()
291 except network.exceptions as exception:
292 print(f"ERROR: domain='{domain}',software='mastodon',exception[{type(exception)}]:'{str(exception)}'")
294 # DEBUG: print("DEBUG: EXIT!")