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
26 from fba import network
30 "Silenced instances" : "Silenced servers",
31 "Suspended instances" : "Suspended servers",
32 "Limited instances" : "Limited servers",
33 "Filtered media" : "Filtered media",
34 # Mappuing German -> English
35 "Gesperrte Server" : "Suspended servers",
36 "Gefilterte Medien" : "Filtered media",
37 "Stummgeschaltete Server" : "Silenced servers",
39 "停止済みのサーバー" : "Suspended servers",
40 "制限中のサーバー" : "Limited servers",
41 "メディアを拒否しているサーバー": "Filtered media",
42 "サイレンス済みのサーバー" : "Silenced servers",
44 "שרתים מושעים" : "Suspended servers",
45 "מדיה מסוננת" : "Filtered media",
46 "שרתים מוגבלים" : "Silenced servers",
48 "Serveurs suspendus" : "Suspended servers",
49 "Médias filtrés" : "Filtered media",
50 "Serveurs limités" : "Limited servers",
51 "Serveurs modérés" : "Limited servers",
54 def fetch_blocks_from_about(domain: str) -> dict:
55 # DEBUG: print(f"DEBUG: domain='{domain}' - CALLED!")
56 if not isinstance(domain, str):
57 raise ValueError(f"Parameter domain[]={type(domain)} is not 'str'")
59 raise ValueError("Parameter 'domain' is empty")
61 # DEBUG: print("DEBUG: Fetching mastodon blocks from domain:", domain)
63 "Suspended servers": [],
64 "Filtered media" : [],
65 "Limited servers" : [],
66 "Silenced servers" : [],
70 doc = bs4.BeautifulSoup(
71 network.fetch_response(domain, "/about/more", network.headers, (config.get("connection_timeout"), config.get("read_timeout"))).text,
74 except BaseException as exception:
75 print("ERROR: Cannot fetch from domain:", domain, exception)
76 instances.update_last_error(domain, exception)
79 for header in doc.find_all("h3"):
80 header_text = fba.tidyup_reason(header.text)
82 # DEBUG: print(f"DEBUG: header_text='{header_text}'")
83 if header_text in language_mapping:
84 # DEBUG: print(f"DEBUG: header_text='{header_text}'")
85 header_text = language_mapping[header_text]
87 print(f"WARNING: header_text='{header_text}' not found in language mapping table")
89 if header_text in blocklist or header_text.lower() in blocklist:
90 # replaced find_next_siblings with find_all_next to account for instances that e.g. hide lists in dropdown menu
91 for line in header.find_all_next("table")[0].find_all("tr")[1:]:
92 blocklist[header_text].append(
94 "domain": fba.tidyup_domain(line.find("span").text),
95 "hash" : fba.tidyup_domain(line.find("span")["title"][9:]),
96 "reason": fba.tidyup_domain(line.find_all("td")[1].text),
100 print(f"WARNING: header_text='{header_text}' not found in blocklist()={len(blocklist)}")
102 # DEBUG: print("DEBUG: Returning blocklist for domain:", domain)
104 "reject" : blocklist["Suspended servers"],
105 "media_removal" : blocklist["Filtered media"],
106 "followers_only": blocklist["Limited servers"] + blocklist["Silenced servers"],
109 def fetch_blocks(domain: str, origin: str, nodeinfo_url: str):
110 # DEBUG: print(f"DEBUG: domain='{domain}',origin='{origin}',nodeinfo_url='{nodeinfo_url}' - CALLED!")
111 if not isinstance(domain, str):
112 raise ValueError(f"Parameter domain[]={type(domain)} is not 'str'")
114 raise ValueError("Parameter 'domain' is empty")
115 elif not isinstance(origin, str) and origin is not None:
116 raise ValueError(f"Parameter origin[]={type(origin)} is not 'str'")
118 raise ValueError("Parameter 'origin' is empty")
119 elif not isinstance(nodeinfo_url, str):
120 raise ValueError(f"Parameter nodeinfo_url[]={type(nodeinfo_url)} is not 'str'")
121 elif nodeinfo_url == "":
122 raise ValueError("Parameter 'nodeinfo_url' is empty")
125 # json endpoint for newer mastodongs
130 "media_removal" : [],
131 "followers_only": [],
132 "report_removal": [],
135 # handling CSRF, I've saw at least one server requiring it to access the endpoint
136 # DEBUG: print("DEBUG: Fetching meta:", domain)
137 meta = bs4.BeautifulSoup(
138 network.fetch_response(domain, "/", network.headers, (config.get("connection_timeout"), config.get("read_timeout"))).text,
142 csrf = meta.find("meta", attrs={"name": "csrf-token"})["content"]
143 # DEBUG: print("DEBUG: Adding CSRF token:", domain, csrf)
144 reqheaders = {**network.api_headers, **{"X-CSRF-Token": csrf}}
145 except BaseException as exception:
146 # DEBUG: print("DEBUG: No CSRF token found, using normal headers:", domain, exception)
147 reqheaders = network.api_headers
149 # DEBUG: print("DEBUG: Querying API domain_blocks:", domain)
150 blocklist = network.fetch_response(domain, "/api/v1/instance/domain_blocks", reqheaders, (config.get("connection_timeout"), config.get("read_timeout"))).json()
152 print(f"INFO: Checking {len(blocklist)} entries from domain='{domain}',software='mastodon' ...")
153 for block in blocklist:
155 'domain': block['domain'],
156 'hash' : block['digest'],
157 'reason': block['comment']
160 # DEBUG: print("DEBUG: severity,domain,hash,comment:", block['severity'], block['domain'], block['digest'], block['comment'])
161 if block['severity'] == 'suspend':
162 # DEBUG: print(f"DEBUG: Adding entry='{entry}' with severity='{block['severity']}' ...")
163 json['reject'].append(entry)
164 elif block['severity'] == 'silence':
165 # DEBUG: print(f"DEBUG: Adding entry='{entry}' with severity='{block['severity']}' ...")
166 json['followers_only'].append(entry)
167 elif block['severity'] == 'reject_media':
168 # DEBUG: print(f"DEBUG: Adding entry='{entry}' with severity='{block['severity']}' ...")
169 json['media_removal'].append(entry)
170 elif block['severity'] == 'reject_reports':
171 # DEBUG: print(f"DEBUG: Adding entry='{entry}' with severity='{block['severity']}' ...")
172 json['report_removal'].append(entry)
174 print("WARNING: Unknown severity:", block['severity'], block['domain'])
176 except BaseException as exception:
177 # DEBUG: print(f"DEBUG: Failed, trying mastodon-specific fetches: domain='{domain}',exception[{type(exception)}]={str(exception)}")
178 json = fetch_blocks_from_about(domain)
180 print(f"INFO: Checking {len(json.items())} entries from domain='{domain}',software='mastodon' ...")
181 for block_level, blocklist in json.items():
182 # DEBUG: print("DEBUG: domain,block_level,blocklist():", domain, block_level, len(blocklist))
183 block_level = fba.tidyup_domain(block_level)
185 # DEBUG: print("DEBUG: AFTER-block_level:", block_level)
186 if block_level == "":
187 print("WARNING: block_level is empty, domain:", domain)
190 # DEBUG: print(f"DEBUG: Checking {len(blocklist)} entries from domain='{domain}',software='mastodon',block_level='{block_level}' ...")
191 for block in blocklist:
192 # DEBUG: print(f"DEBUG: block[]='{type(block)}'")
193 blocked, blocked_hash, reason = block.values()
194 # DEBUG: print(f"DEBUG: blocked='{blocked}',blocked_hash='{blocked_hash}',reason='{reason}':")
195 blocked = fba.tidyup_domain(blocked)
196 reason = fba.tidyup_reason(reason) if reason is not None and reason != "" else None
197 # DEBUG: print(f"DEBUG: blocked='{blocked}',reason='{reason}' - AFTER!")
200 print("WARNING: blocked is empty:", domain)
202 elif blacklist.is_blacklisted(blocked):
203 # DEBUG: print(f"DEBUG: blocked='{blocked}' is blacklisted - skipping!")
205 elif blocked.count("*") > 0:
206 # Doing the hash search for instance names as well to tidy up DB
208 "SELECT domain, origin, nodeinfo_url FROM instances WHERE hash = ? LIMIT 1", [blocked_hash]
210 searchres = fba.cursor.fetchone()
212 if searchres is None:
213 print(f"WARNING: Cannot deobsfucate blocked='{blocked}',blocked_hash='{blocked_hash}' - SKIPPED!")
216 # DEBUG: print("DEBUG: Updating domain: ", searchres[0])
217 blocked = searchres[0]
218 origin = searchres[1]
219 nodeinfo_url = searchres[2]
221 # DEBUG: print("DEBUG: Looking up instance by domain:", blocked)
222 if not validators.domain(blocked):
223 print(f"WARNING: blocked='{blocked}',software='mastodon' is not a valid domain name - skipped!")
225 elif not instances.is_registered(blocked):
226 # DEBUG: print(f"DEBUG: Domain blocked='{blocked}' wasn't found, adding ..., domain='{domain}',origin='{origin}',nodeinfo_url='{nodeinfo_url}'")
227 instances.add(blocked, domain, inspect.currentframe().f_code.co_name, nodeinfo_url)
228 elif not validators.domain(blocked):
229 print(f"WARNING: blocked='{blocked}',software='mastodon' is not a valid domain name - skipped!")
232 # DEBUG: print("DEBUG: Looking up instance by domain:", blocked)
233 if not validators.domain(blocked):
234 print(f"WARNING: blocked='{blocked}',software='mastodon' is not a valid domain name - skipped!")
236 elif not instances.is_registered(blocked):
237 # DEBUG: print("DEBUG: Hash wasn't found, adding:", blocked, domain)
238 instances.add(blocked, domain, inspect.currentframe().f_code.co_name, nodeinfo_url)
240 blocking = blocked if blocked.count("*") <= 1 else blocked_hash
241 # DEBUG: print(f"DEBUG: blocking='{blocking}',blocked='{blocked}',blocked_hash='{blocked_hash}'")
243 if not blocks.is_instance_blocked(domain, blocked, block_level):
244 # DEBUG: print("DEBUG: Blocking:", domain, blocked, block_level)
245 blocks.add_instance(domain, blocking, reason, block_level)
247 if block_level == "reject":
253 # DEBUG: print(f"DEBUG: Updating block last seen and reason for domain='{domain}',blocking='{blocking}' ...")
254 blocks.update_last_seen(domain, blocking, block_level)
255 blocks.update_reason(reason, domain, blocking, block_level)
257 # DEBUG: print("DEBUG: Committing changes ...")
258 fba.connection.commit()
259 except BaseException as exception:
260 print(f"ERROR: domain='{domain}',software='mastodon',exception[{type(exception)}]:'{str(exception)}'")
262 # DEBUG: print("DEBUG: EXIT!")