1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
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,
)
import urllib.parse
class APIChoice(enum.Enum):
ACTIVITYPUB = "ActivityPub"
MASTODON = "Mastodon"
api_url_ap_template = "https://{server}/users/{user}/outbox?page=true"
api_url_m_lookup_template = "https://{server}/api/v1/accounts/lookup"
api_url_m_status_template = "https://{server}/api/v1/accounts/{uid}/statuses"
class Status(object):
def __init__(self, id: str, content: str, published: str):
self.id = id
self.content = content
self.published = published
class StatusProvider:
def load_statuses(self) -> list[Status]:
raise NotImplementedError
def _fallback_not_found(self):
return [Status("not-found", "User not found\n", "1970-01-01T00:00:00Z")]
class ActivityPubStatusProvider(StatusProvider):
def __init__(self, server: str, user: str):
self.server = server
self.user = user
def load_statuses(self) -> list[Status]:
url = api_url_ap_template.format(server=self.server, user=self.user)
res = requests.get(url)
if res.status_code == 404:
return self._fallback_not_found()
res.raise_for_status()
stats = res.json()
return [
Status(
s["object"]["id"].split("/")[-1],
s["object"]["content"],
s["object"]["published"],
)
for s in stats["orderedItems"]
if s["type"] == "Create"
]
class MastodonStatusProvider(StatusProvider):
def __init__(self, server: str, user: str):
self.server = server
self.user = user
self.userid = 0
def load_statuses(self) -> list[Status]:
url = api_url_m_lookup_template.format(server=self.server)
url += "?" + urllib.parse.urlencode({"acct": self.user})
res = requests.get(url)
if res.status_code == 404:
return self._fallback_not_found()
res.raise_for_status()
user = res.json()
self.userid = user["id"]
url = api_url_m_status_template.format(server=self.server, uid=urllib.parse.quote(self.userid))
res = requests.get(url)
if res.status_code == 404:
return self._fallback_not_found()
statuses = res.json()
return [
Status(
s["id"],
s["content"],
s["created_at"],
)
for s in statuses
]
class HelloWorld(Operations, LoggingMixIn):
def __init__(self, api: APIChoice, server: str, user: str):
self.statuses: list[Status] = []
self.fd = 0
self.api = api
if api == APIChoice.MASTODON:
self.status_provider = MastodonStatusProvider(server, user)
else:
self.status_provider = ActivityPubStatusProvider(server, 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 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.statuses = self.status_provider.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")
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)
|
