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import argparse
import enum
import errno
import logging
import requests
import sys
import stat
from datetime import datetime as dtp
from fuse import (
FUSE,
Operations,
FuseOSError,
LoggingMixIn,
fuse_exit,
fuse_get_context,
)
class APIChoice(enum.Enum):
ACTIVITYPUB = "ActivityPub"
MASTODON = "Mastodon"
api_url_template_ap = "https://{server}/users/{user}/outbox?min_id=0&page=true"
class Status(object):
def __init__(self, id: str, content: str, published: str):
self.id = id
self.content = content
self.published = published
class HelloWorld(Operations, LoggingMixIn):
def __init__(self, api: APIChoice, server: str, user: str):
self.statuses: list[Status] = []
self.fd = 0
self.api = api
self.server = server
self.user = user
def getattr(self, path, fh=None):
(uid, gid, _) = fuse_get_context()
if path == "/":
return {
"st_mode": (stat.S_IFDIR | 0o700), # Directory
"st_nlink": 2,
"st_uid": uid,
"st_gid": gid,
}
found = next((s for s in self.statuses if "/" + s.id == path), None)
if found:
published_dt = dtp.fromisoformat(found.published)
pubunix = published_dt.timestamp()
return {
"st_mode": (stat.S_IFREG | 0o400),
"st_size": len(found.content.encode("utf8")),
"st_nlink": 1,
"st_uid": uid,
"st_gid": gid,
"st_ctime": pubunix,
"st_mtime": pubunix,
}
raise FuseOSError(errno.ENOENT)
def load_statuses(self):
url = api_url_template_ap.format(server=self.server, user=self.user)
res = requests.get(url)
if res.status_code == 404:
self.statuses = [Status("not-found", "User not found\n", "1970-01-01T00:00:00Z")]
return
res.raise_for_status()
stats = res.json()
logging.debug(f"Status: ${stats['id']}")
self.statuses = [
Status(
s["object"]["id"].split("/")[-1],
s["object"]["content"],
s["object"]["published"],
)
for s in stats["orderedItems"]
]
pass
def list_dir(self) -> list[str]:
return [s.id for s in self.statuses]
def readdir(self, path, fh):
dir_entries = []
if path != "/":
raise FuseOSError(errno.ENOENT)
dir_entries = [".", ".."]
if not self.statuses:
self.load_statuses()
dir_entries += self.list_dir()
return dir_entries
def open(self, path, flags):
self.fd += 1
return self.fd
def read(self, path, size, offset, fh):
found = next(s for s in self.statuses if "/" + s.id == path)
if found:
return found.content.encode("utf8")
raise FuseOSError(errno.ENOENT)
def parse_arguments():
parser = argparse.ArgumentParser(
description="Mount a read-only FUSE filesystem for ActivityPub or Mastodon"
)
parser.add_argument(
"mountpoint", help="The directory where the filesystem will be mounted"
)
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument(
"-a", "--activitypub", action="store_true", help="Use ActivityPub API"
)
group.add_argument("-m", "--mastodon", action="store_true", help="Use Mastodon API")
parser.add_argument("-s", "--server", required=True, help="The server/host URL")
parser.add_argument(
"-u", "--username", required=True, help="The username to fetch statuses for"
)
args = parser.parse_args()
if args.activitypub:
args.api_choice = APIChoice.ACTIVITYPUB
elif args.mastodon:
args.api_choice = APIChoice.MASTODON
else:
parser.error("Must choose either ActivityPub or Mastodon API")
if args.api_choice != APIChoice.ACTIVITYPUB:
raise NotImplementedError("Not supported yet")
return args
def main(args):
try:
FUSE(
HelloWorld(args.api_choice, args.server, args.username),
args.mountpoint,
nothreads=True,
foreground=True,
)
except:
fuse_exit()
raise
if __name__ == "__main__":
logging.basicConfig(level=logging.DEBUG)
args = parse_arguments()
main(args)
|
