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/>.
19 from datetime import datetime
20 from email.utils import format_datetime
21 from pathlib import Path
24 from fastapi import Request, HTTPException, Query
25 from fastapi.responses import JSONResponse
26 from fastapi.responses import PlainTextResponse
27 from fastapi.staticfiles import StaticFiles
28 from fastapi.templating import Jinja2Templates
33 from fba import database
36 from fba.helpers import config
37 from fba.helpers import tidyup
39 from fba.http import network
41 from fba.models import blocks
43 router = fastapi.FastAPI(docs_url=config.get("base_url") + "/docs", redoc_url=config.get("base_url") + "/redoc")
46 StaticFiles(directory=Path(__file__).parent.absolute() / "static"),
50 templates = Jinja2Templates(directory="templates")
52 @router.get(config.get("base_url") + "/api/info.json", response_class=JSONResponse)
54 database.cursor.execute("SELECT (SELECT COUNT(domain) FROM instances), (SELECT COUNT(domain) FROM instances WHERE software IN ('pleroma', 'mastodon', 'lemmy', 'friendica', 'misskey', 'peertube')), (SELECT COUNT(blocker) FROM blocks), (SELECT COUNT(domain) FROM instances WHERE last_error_details IS NOT NULL)")
55 row = database.cursor.fetchone()
58 "known_instances" : row[0],
59 "supported_instances": row[1],
60 "blocks_recorded" : row[2],
61 "erroneous_instances": row[3],
62 "slogan" : config.get("slogan"),
65 @router.get(config.get("base_url") + "/api/scoreboard.json", response_class=JSONResponse)
66 def api_scoreboard(mode: str, amount: int):
67 if amount > config.get("api_limit"):
68 raise HTTPException(status_code=400, detail="Too many results")
71 database.cursor.execute("SELECT blocked, COUNT(blocked) AS score FROM blocks GROUP BY blocked ORDER BY score DESC LIMIT ?", [amount])
72 elif mode == "blocker":
73 database.cursor.execute("SELECT blocker, COUNT(blocker) AS score FROM blocks GROUP BY blocker ORDER BY score DESC LIMIT ?", [amount])
74 elif mode == "reference":
75 database.cursor.execute("SELECT origin, COUNT(domain) AS score FROM instances WHERE software IS NOT NULL GROUP BY origin ORDER BY score DESC LIMIT ?", [amount])
76 elif mode == "software":
77 database.cursor.execute("SELECT software, COUNT(domain) AS score FROM instances WHERE software IS NOT NULL GROUP BY software ORDER BY score DESC, software ASC LIMIT ?", [amount])
78 elif mode == "command":
79 database.cursor.execute("SELECT command, COUNT(domain) AS score FROM instances WHERE command IS NOT NULL GROUP BY command ORDER BY score DESC, command ASC LIMIT ?", [amount])
80 elif mode == "error_code":
81 database.cursor.execute("SELECT last_status_code, COUNT(domain) AS score FROM instances WHERE last_status_code IS NOT NULL AND last_status_code != '200' GROUP BY last_status_code ORDER BY score DESC LIMIT ?", [amount])
82 elif mode == "detection_mode":
83 database.cursor.execute("SELECT detection_mode, COUNT(domain) AS cnt FROM instances GROUP BY detection_mode ORDER BY cnt DESC LIMIT ?", [amount])
84 elif mode == "avg_peers":
85 database.cursor.execute("SELECT software, AVG(total_peers) AS average FROM instances WHERE software IS NOT NULL GROUP BY software HAVING average>0 ORDER BY average DESC LIMIT ?", [amount])
86 elif mode == "obfuscator":
87 database.cursor.execute("SELECT software, COUNT(domain) AS cnt FROM instances WHERE has_obfuscation = 1 GROUP BY software ORDER BY cnt DESC LIMIT ?", [amount])
88 elif mode == "obfuscation":
89 database.cursor.execute("SELECT has_obfuscation, COUNT(domain) AS cnt FROM instances WHERE software IN ('pleroma', 'mastodon', 'friendica') GROUP BY has_obfuscation ORDER BY cnt DESC LIMIT ?", [amount])
90 elif mode == "block_level":
91 database.cursor.execute("SELECT block_level, COUNT(rowid) AS cnt FROM blocks GROUP BY block_level ORDER BY cnt DESC LIMIT ?", [amount])
93 raise HTTPException(status_code=400, detail="No filter specified")
97 for domain, score in database.cursor.fetchall():
100 "score" : round(score)
105 @router.get(config.get("base_url") + "/api/index.json", response_class=JSONResponse)
106 def api_index(request: Request, mode: str, value: str, amount: int):
107 if mode is None or value is None or amount is None:
108 raise HTTPException(status_code=500, detail="No filter specified")
109 elif amount > config.get("api_limit"):
110 raise HTTPException(status_code=500, detail=f"amount={amount} is to big")
112 domain = wildchar = punycode = reason = None
114 if mode == "block_level":
115 database.cursor.execute(
116 "SELECT blocker, blocked, block_level, reason, first_seen, last_seen FROM blocks WHERE block_level = ? LIMIT ?", [value, amount]
118 elif mode in ["domain", "reverse"]:
119 domain = tidyup.domain(value)
120 if not utils.is_domain_wanted(domain):
121 raise HTTPException(status_code=500, detail=f"domain='{domain}' is not wanted")
123 wildchar = "*." + ".".join(domain.split(".")[-domain.count("."):])
124 punycode = domain.encode('idna').decode('utf-8')
125 elif mode == "reason":
126 reason = re.sub("(%|_)", "", tidyup.reason(value))
128 raise HTTPException(status_code=400, detail="Keyword is shorter than three characters")
131 database.cursor.execute("SELECT blocker, blocked, block_level, reason, first_seen, last_seen \
133 WHERE blocked = ? OR blocked = ? OR blocked = ? OR blocked = ? OR blocked = ? OR blocked = ? ORDER BY first_seen ASC LIMIT ?",
138 utils.get_hash(domain),
144 elif mode == "reverse":
145 database.cursor.execute("SELECT blocker, blocked, block_level, reason, first_seen, last_seen \
147 WHERE blocker = ? OR blocker = ? OR blocker = ? OR blocker = ? OR blocker = ? OR blocker = ? \
148 ORDER BY first_seen ASC \
153 utils.get_hash(domain),
158 elif mode == "reason":
159 database.cursor.execute("SELECT blocker, blocked, block_level, reason, first_seen, last_seen \
161 WHERE reason LIKE ? AND reason != '' \
162 ORDER BY first_seen ASC \
168 blocklist = database.cursor.fetchall()
171 for blocker, blocked, block_level, reason, first_seen, last_seen in blocklist:
172 if reason is not None and reason != "":
173 reason = reason.replace(",", " ").replace(" ", " ")
179 "first_seen": first_seen,
180 "last_seen" : last_seen
183 if block_level in result:
184 result[block_level].append(entry)
186 result[block_level] = [entry]
190 @router.get(config.get("base_url") + "/api/mutual.json", response_class=JSONResponse)
191 def api_mutual(domains: list[str] = Query()):
192 """Return 200 if federation is open between the two, 4xx otherwise"""
193 database.cursor.execute(
194 "SELECT block_level FROM blocks " \
195 "WHERE ((blocker = :a OR blocker = :b) AND (blocked = :b OR blocked = :a OR blocked = :aw OR blocked = :bw)) " \
196 "AND block_level = 'reject' " \
201 "aw": "*." + domains[0],
202 "bw": "*." + domains[1],
205 response = database.cursor.fetchone()
207 if response is not None:
209 return JSONResponse(status_code=418, content={})
212 return JSONResponse(status_code=200, content={})
214 @router.get(config.get("base_url") + "/scoreboard")
215 def scoreboard(request: Request, mode: str, amount: int):
218 if mode == "blocker" and amount > 0:
219 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/scoreboard.json?mode=blocker&amount={amount}")
220 elif mode == "blocked" and amount > 0:
221 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/scoreboard.json?mode=blocked&amount={amount}")
222 elif mode == "reference" and amount > 0:
223 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/scoreboard.json?mode=reference&amount={amount}")
224 elif mode == "software" and amount > 0:
225 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/scoreboard.json?mode=software&amount={amount}")
226 elif mode == "command" and amount > 0:
227 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/scoreboard.json?mode=command&amount={amount}")
228 elif mode == "error_code" and amount > 0:
229 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/scoreboard.json?mode=error_code&amount={amount}")
230 elif mode == "detection_mode" and amount > 0:
231 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/scoreboard.json?mode=detection_mode&amount={amount}")
232 elif mode == "avg_peers" and amount > 0:
233 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/scoreboard.json?mode=avg_peers&amount={amount}")
234 elif mode == "obfuscator" and amount > 0:
235 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/scoreboard.json?mode=obfuscator&amount={amount}")
236 elif mode == "obfuscation" and amount > 0:
237 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/scoreboard.json?mode=obfuscation&amount={amount}")
238 elif mode == "block_level" and amount > 0:
239 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/scoreboard.json?mode=block_level&amount={amount}")
241 raise HTTPException(status_code=400, detail="No filter specified")
244 raise HTTPException(status_code=500, detail="Could not determine scores")
245 elif not response.ok:
246 raise HTTPException(status_code=response.status_code, detail=response.text)
248 return templates.TemplateResponse("views/scoreboard.html", {
249 "base_url" : config.get("base_url"),
250 "slogan" : config.get("slogan"),
251 "theme" : config.get("theme"),
256 "scores" : network.json_from_response(response)
259 @router.get(config.get("base_url") + "/")
260 def index(request: Request):
262 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/info.json")
265 raise HTTPException(status_code=response.status_code, detail=response.text)
267 return templates.TemplateResponse("views/index.html", {
269 "theme" : config.get("theme"),
270 "info" : response.json()
273 @router.get(config.get("base_url") + "/top")
274 def top(request: Request, mode: str, value: str, amount: int = config.get("api_limit")):
275 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/info.json")
278 raise HTTPException(status_code=response.status_code, detail=response.text)
279 elif mode == "" or value == "" or amount == 0:
280 raise HTTPException(status_code=500, detail="Parameter mode, value and amount must always be set")
281 elif amount > config.get("api_limit"):
282 raise HTTPException(status_code=500, detail=f"amount='{amount}' is to big")
284 info = response.json()
288 if mode == "block_level" and not blocks.is_valid_level(value):
289 raise HTTPException(status_code=500, detail="Invalid block level provided")
290 elif mode in ["domain", "reverse"] and not utils.is_domain_wanted(value):
291 raise HTTPException(status_code=500, detail="Invalid or blocked domain specified")
293 response = requests.get(f"http://{config.get('host')}:{config.get('port')}{config.get('base_url')}/api/index.json?mode={mode}&value={value}&amount={amount}")
295 if response is not None:
296 blocklist = response.json()
299 for block_level in blocklist:
300 for block in blocklist[block_level]:
301 block["first_seen"] = datetime.utcfromtimestamp(block["first_seen"]).strftime(config.get("timestamp_format"))
302 block["last_seen"] = datetime.utcfromtimestamp(block["last_seen"]).strftime(config.get("timestamp_format"))
305 return templates.TemplateResponse("views/top.html", {
307 "mode" : mode if response is not None else None,
308 "value" : value if response is not None else None,
309 "amount" : amount if response is not None else None,
311 "blocklist": blocklist,
313 "theme" : config.get("theme"),
316 @router.get(config.get("base_url") + "/rss")
317 def rss(request: Request, domain: str = None):
318 if domain is not None:
319 domain = tidyup.domain(domain)
321 wildchar = "*." + ".".join(domain.split(".")[-domain.count("."):])
322 punycode = domain.encode("idna").decode("utf-8")
324 database.cursor.execute("SELECT blocker, blocked, block_level, reason, first_seen, last_seen FROM blocks WHERE blocked = ? OR blocked = ? OR blocked = ? OR blocked = ? OR blocked = ? OR blocked = ? ORDER BY first_seen DESC LIMIT ?", [
326 "*." + domain, wildchar,
327 utils.get_hash(domain),
330 config.get("rss_limit")
333 database.cursor.execute("SELECT blocker, blocked, block_level, reason, first_seen, last_seen FROM blocks ORDER BY first_seen DESC LIMIT ?", [config.get("rss_limit")])
335 result = database.cursor.fetchall()
342 "block_level": row[2],
343 "reason" : "Provided reason: '" + row[3] + "'" if row[3] is not None and row[3] != "" else "No reason provided.",
344 "first_seen" : format_datetime(datetime.fromtimestamp(row[4])),
345 "last_seen" : format_datetime(datetime.fromtimestamp(row[5])),
348 return templates.TemplateResponse("views/rss.xml", {
350 "timestamp": format_datetime(datetime.now()),
352 "hostname" : config.get("hostname"),
355 "Content-Type": "routerlication/rss+xml"
358 @router.get(config.get("base_url") + "/robots.txt", response_class=PlainTextResponse)
359 def robots(request: Request):
360 return templates.TemplateResponse("views/robots.txt", {
362 "base_url": config.get("base_url")
365 if __name__ == "__main__":
366 uvicorn.run("api:router", host=config.get("host"), port=config.get("port"), log_level=config.get("log_level"))