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
22 from fba import blocks
23 from fba import config
25 from fba import instances
29 "Silenced instances" : "Silenced servers",
30 "Suspended instances" : "Suspended servers",
31 "Limited instances" : "Limited servers",
32 "Filtered media" : "Filtered media",
33 # Mappuing German -> English
34 "Gesperrte Server" : "Suspended servers",
35 "Gefilterte Medien" : "Filtered media",
36 "Stummgeschaltete Server" : "Silenced servers",
38 "停止済みのサーバー" : "Suspended servers",
39 "制限中のサーバー" : "Limited servers",
40 "メディアを拒否しているサーバー": "Filtered media",
41 "サイレンス済みのサーバー" : "Silenced servers",
43 "שרתים מושעים" : "Suspended servers",
44 "מדיה מסוננת" : "Filtered media",
45 "שרתים מוגבלים" : "Silenced servers",
47 "Serveurs suspendus" : "Suspended servers",
48 "Médias filtrés" : "Filtered media",
49 "Serveurs limités" : "Limited servers",
50 "Serveurs modérés" : "Limited servers",
53 def fetch_blocks_from_about(domain: str) -> dict:
54 # DEBUG: print(f"DEBUG: domain='{domain}' - CALLED!")
55 if type(domain) != str:
56 raise ValueError(f"Parameter domain[]={type(domain)} is not 'str'")
58 raise ValueError(f"Parameter 'domain' is empty")
60 # DEBUG: print("DEBUG: Fetching mastodon blocks from domain:", domain)
62 "Suspended servers": [],
63 "Filtered media" : [],
64 "Limited servers" : [],
65 "Silenced servers" : [],
69 doc = bs4.BeautifulSoup(
70 fba.get_response(domain, "/about/more", fba.headers, (config.get("connection_timeout"), config.get("read_timeout"))).text,
73 except BaseException as e:
74 print("ERROR: Cannot fetch from domain:", domain, e)
75 instances.update_last_error(domain, e)
78 for header in doc.find_all("h3"):
79 header_text = fba.tidyup_reason(header.text)
81 # DEBUG: print(f"DEBUG: header_text='{header_text}'")
82 if header_text in language_mapping:
83 # DEBUG: print(f"DEBUG: header_text='{header_text}'")
84 header_text = language_mapping[header_text]
86 print(f"WARNING: header_text='{header_text}' not found in language mapping table")
88 if header_text in blocklist or header_text.lower() in blocklist:
89 # replaced find_next_siblings with find_all_next to account for instances that e.g. hide lists in dropdown menu
90 for line in header.find_all_next("table")[0].find_all("tr")[1:]:
91 blocklist[header_text].append(
93 "domain": fba.tidyup_domain(line.find("span").text),
94 "hash" : fba.tidyup_domain(line.find("span")["title"][9:]),
95 "reason": fba.tidyup_domain(line.find_all("td")[1].text),
99 print(f"WARNING: header_text='{header_text}' not found in blocklist()={len(blocklist)}")
101 # DEBUG: print("DEBUG: Returning blocklist for domain:", domain)
103 "reject" : blocklist["Suspended servers"],
104 "media_removal" : blocklist["Filtered media"],
105 "followers_only": blocklist["Limited servers"] + blocklist["Silenced servers"],
108 def fetch_blocks(domain: str, origin: str, nodeinfo_url: str):
109 # DEBUG: print(f"DEBUG: domain='{domain}',origin='{origin}',nodeinfo_url='{nodeinfo_url}' - CALLED!")
110 if type(domain) != str:
111 raise ValueError(f"Parameter domain[]={type(domain)} is not 'str'")
113 raise ValueError(f"Parameter 'domain' is empty")
114 elif type(origin) != str and origin != None:
115 raise ValueError(f"Parameter origin[]={type(origin)} is not 'str'")
117 raise ValueError(f"Parameter 'origin' is empty")
118 elif type(nodeinfo_url) != str:
119 raise ValueError(f"Parameter nodeinfo_url[]={type(nodeinfo_url)} is not 'str'")
120 elif nodeinfo_url == "":
121 raise ValueError(f"Parameter 'nodeinfo_url' is empty")
124 # json endpoint for newer mastodongs
129 "media_removal" : [],
130 "followers_only": [],
131 "report_removal": [],
134 # handling CSRF, I've saw at least one server requiring it to access the endpoint
135 # DEBUG: print("DEBUG: Fetching meta:", domain)
136 meta = bs4.BeautifulSoup(
137 fba.get_response(domain, "/", fba.headers, (config.get("connection_timeout"), config.get("read_timeout"))).text,
141 csrf = meta.find("meta", attrs={"name": "csrf-token"})["content"]
142 # DEBUG: print("DEBUG: Adding CSRF token:", domain, csrf)
143 reqheaders = {**fba.api_headers, **{"X-CSRF-Token": csrf}}
144 except BaseException as e:
145 # DEBUG: print("DEBUG: No CSRF token found, using normal headers:", domain, e)
146 reqheaders = fba.api_headers
148 # DEBUG: print("DEBUG: Querying API domain_blocks:", domain)
149 blocklist = fba.get_response(domain, "/api/v1/instance/domain_blocks", reqheaders, (config.get("connection_timeout"), config.get("read_timeout"))).json()
151 print(f"INFO: Checking {len(blocklist)} entries from domain='{domain}',software='mastodon' ...")
152 for block in blocklist:
154 'domain': block['domain'],
155 'hash' : block['digest'],
156 'reason': block['comment']
159 # DEBUG: print("DEBUG: severity,domain,hash,comment:", block['severity'], block['domain'], block['digest'], block['comment'])
160 if block['severity'] == 'suspend':
161 # DEBUG: print(f"DEBUG: Adding entry='{entry}' with severity='{block['severity']}' ...")
162 json['reject'].append(entry)
163 elif block['severity'] == 'silence':
164 # DEBUG: print(f"DEBUG: Adding entry='{entry}' with severity='{block['severity']}' ...")
165 json['followers_only'].append(entry)
166 elif block['severity'] == 'reject_media':
167 # DEBUG: print(f"DEBUG: Adding entry='{entry}' with severity='{block['severity']}' ...")
168 json['media_removal'].append(entry)
169 elif block['severity'] == 'reject_reports':
170 # DEBUG: print(f"DEBUG: Adding entry='{entry}' with severity='{block['severity']}' ...")
171 json['report_removal'].append(entry)
173 print("WARNING: Unknown severity:", block['severity'], block['domain'])
175 except BaseException as e:
176 # DEBUG: print(f"DEBUG: Failed, trying mastodon-specific fetches: domain='{domain}',exception[{type(e)}]={str(e)}")
177 json = fetch_blocks_from_about(domain)
179 print(f"INFO: Checking {len(json.items())} entries from domain='{domain}',software='mastodon' ...")
180 for block_level, blocklist in json.items():
181 # DEBUG: print("DEBUG: domain,block_level,blocklist():", domain, block_level, len(blocklist))
182 block_level = fba.tidyup_domain(block_level)
184 # DEBUG: print("DEBUG: AFTER-block_level:", block_level)
185 if block_level == "":
186 print("WARNING: block_level is empty, domain:", domain)
189 # DEBUG: print(f"DEBUG: Checking {len(blocklist)} entries from domain='{domain}',software='mastodon',block_level='{block_level}' ...")
190 for block in blocklist:
191 # DEBUG: print(f"DEBUG: block[]='{type(block)}'")
192 blocked, blocked_hash, reason = block.values()
193 # DEBUG: print(f"DEBUG: blocked='{blocked}',blocked_hash='{blocked_hash}',reason='{reason}':")
194 blocked = fba.tidyup_domain(blocked)
195 reason = fba.tidyup_reason(reason) if reason != None and reason != "" else None
196 # DEBUG: print(f"DEBUG: blocked='{blocked}',reason='{reason}' - AFTER!")
199 print("WARNING: blocked is empty:", domain)
201 elif blacklist.is_blacklisted(blocked):
202 # DEBUG: print(f"DEBUG: blocked='{blocked}' is blacklisted - skipping!")
204 elif blocked.count("*") > 0:
205 # Doing the hash search for instance names as well to tidy up DB
207 "SELECT domain, origin, nodeinfo_url FROM instances WHERE hash = ? LIMIT 1", [blocked_hash]
209 searchres = fba.cursor.fetchone()
211 if searchres == None:
212 print(f"WARNING: Cannot deobsfucate blocked='{blocked}',blocked_hash='{blocked_hash}' - SKIPPED!")
215 # DEBUG: print("DEBUG: Updating domain: ", searchres[0])
216 blocked = searchres[0]
217 origin = searchres[1]
218 nodeinfo_url = searchres[2]
220 # DEBUG: print("DEBUG: Looking up instance by domain:", blocked)
221 if not validators.domain(blocked):
222 print(f"WARNING: blocked='{blocked}',software='mastodon' is not a valid domain name - skipped!")
224 elif not instances.is_registered(blocked):
225 # DEBUG: print(f"DEBUG: Domain blocked='{blocked}' wasn't found, adding ..., domain='{domain}',origin='{origin}',nodeinfo_url='{nodeinfo_url}'")
226 instances.add(blocked, domain, inspect.currentframe().f_code.co_name, nodeinfo_url)
227 elif not validators.domain(blocked):
228 print(f"WARNING: blocked='{blocked}',software='mastodon' is not a valid domain name - skipped!")
231 # DEBUG: print("DEBUG: Looking up instance by domain:", blocked)
232 if not validators.domain(blocked):
233 print(f"WARNING: blocked='{blocked}',software='mastodon' is not a valid domain name - skipped!")
235 elif not instances.is_registered(blocked):
236 # DEBUG: print("DEBUG: Hash wasn't found, adding:", blocked, domain)
237 instances.add(blocked, domain, inspect.currentframe().f_code.co_name, nodeinfo_url)
239 blocking = blocked if blocked.count("*") <= 1 else blocked_hash
240 # DEBUG: print(f"DEBUG: blocking='{blocking}',blocked='{blocked}',blocked_hash='{blocked_hash}'")
242 if not blocks.is_instance_blocked(domain, blocked, block_level):
243 # DEBUG: print("DEBUG: Blocking:", domain, blocked, block_level)
244 blocks.add_instance(domain, blocking, reason, block_level)
246 if block_level == "reject":
252 # DEBUG: print(f"DEBUG: Updating block last seen and reason for domain='{domain}',blocking='{blocking}' ...")
253 blocks.update_last_seen(domain, blocking, block_level)
254 blocks.update_reason(reason, domain, blocking, block_level)
256 # DEBUG: print("DEBUG: Committing changes ...")
257 fba.connection.commit()
258 except Exception as e:
259 print(f"ERROR: domain='{domain}',software='mastodon',exception[{type(e)}]:'{str(e)}'")
261 # DEBUG: print("DEBUG: EXIT!")