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
use crate::fetcher::post_or_comment::PostOrComment;
use anyhow::{anyhow, Context};
use lemmy_api_common::blocking;
use lemmy_db_schema::{newtypes::DbUrl, source::activity::Activity, DbPool};
use lemmy_utils::{location_info, settings::structs::Settings, LemmyError};
use std::net::IpAddr;
use url::{ParseError, Url};
pub mod activities;
pub(crate) mod activity_lists;
pub(crate) mod collections;
mod context;
pub mod fetcher;
pub mod http;
pub(crate) mod mentions;
pub mod migrations;
pub mod objects;
pub mod protocol;
pub(crate) fn check_is_apub_id_valid(
apub_id: &Url,
use_strict_allowlist: bool,
settings: &Settings,
) -> Result<(), LemmyError> {
let domain = apub_id.domain().context(location_info!())?.to_string();
let local_instance = settings.get_hostname_without_port()?;
if !settings.federation.enabled {
return if domain == local_instance {
Ok(())
} else {
Err(
anyhow!(
"Trying to connect with {}, but federation is disabled",
domain
)
.into(),
)
};
}
let host = apub_id.host_str().context(location_info!())?;
let host_as_ip = host.parse::<IpAddr>();
if host == "localhost" || host_as_ip.is_ok() {
return Err(anyhow!("invalid hostname {}: {}", host, apub_id).into());
}
if apub_id.scheme() != settings.get_protocol_string() {
return Err(anyhow!("invalid apub id scheme {}: {}", apub_id.scheme(), apub_id).into());
}
if let Some(blocked) = settings.to_owned().federation.blocked_instances {
if blocked.contains(&domain) {
return Err(anyhow!("{} is in federation blocklist", domain).into());
}
}
if let Some(mut allowed) = settings.to_owned().federation.allowed_instances {
let strict_allowlist = settings.to_owned().federation.strict_allowlist;
if use_strict_allowlist || strict_allowlist {
allowed.push(local_instance);
if !allowed.contains(&domain) {
return Err(anyhow!("{} not in federation allowlist", domain).into());
}
}
}
Ok(())
}
pub enum EndpointType {
Community,
Person,
Post,
Comment,
PrivateMessage,
}
pub fn generate_local_apub_endpoint(
endpoint_type: EndpointType,
name: &str,
domain: &str,
) -> Result<DbUrl, ParseError> {
let point = match endpoint_type {
EndpointType::Community => "c",
EndpointType::Person => "u",
EndpointType::Post => "post",
EndpointType::Comment => "comment",
EndpointType::PrivateMessage => "private_message",
};
Ok(Url::parse(&format!("{}/{}/{}", domain, point, name))?.into())
}
pub fn generate_followers_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
Ok(Url::parse(&format!("{}/followers", actor_id))?.into())
}
pub fn generate_inbox_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
Ok(Url::parse(&format!("{}/inbox", actor_id))?.into())
}
pub fn generate_shared_inbox_url(actor_id: &DbUrl) -> Result<DbUrl, LemmyError> {
let actor_id: Url = actor_id.clone().into();
let url = format!(
"{}://{}{}/inbox",
&actor_id.scheme(),
&actor_id.host_str().context(location_info!())?,
if let Some(port) = actor_id.port() {
format!(":{}", port)
} else {
"".to_string()
},
);
Ok(Url::parse(&url)?.into())
}
pub fn generate_outbox_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
Ok(Url::parse(&format!("{}/outbox", actor_id))?.into())
}
fn generate_moderators_url(community_id: &DbUrl) -> Result<DbUrl, LemmyError> {
Ok(Url::parse(&format!("{}/moderators", community_id))?.into())
}
async fn insert_activity(
ap_id: &Url,
activity: serde_json::Value,
local: bool,
sensitive: bool,
pool: &DbPool,
) -> Result<(), LemmyError> {
let ap_id = ap_id.to_owned().into();
blocking(pool, move |conn| {
Activity::insert(conn, ap_id, activity, local, sensitive)
})
.await??;
Ok(())
}