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

use std::env::consts;
use std::time::SystemTime;

use async_trait::async_trait;
use serde_json::json;
use tracing::instrument;
use tracing::{debug, trace};

use crate::client::bridge::gateway::{ChunkGuildFilter, GatewayIntents};
use crate::constants::{self, OpCode};
use crate::gateway::{CurrentPresence, WsStream};
use crate::internal::prelude::*;
use crate::internal::ws_impl::SenderExt;
use crate::model::id::GuildId;

#[async_trait]
pub trait WebSocketGatewayClientExt {
    async fn send_chunk_guild(
        &mut self,
        guild_id: GuildId,
        shard_info: &[u64; 2],
        limit: Option<u16>,
        filter: ChunkGuildFilter,
        nonce: Option<&str>,
    ) -> Result<()>;

    async fn send_heartbeat(&mut self, shard_info: &[u64; 2], seq: Option<u64>) -> Result<()>;

    async fn send_identify(
        &mut self,
        shard_info: &[u64; 2],
        token: &str,
        intents: GatewayIntents,
    ) -> Result<()>;

    async fn send_presence_update(
        &mut self,
        shard_info: &[u64; 2],
        current_presence: &CurrentPresence,
    ) -> Result<()>;

    async fn send_resume(
        &mut self,
        shard_info: &[u64; 2],
        session_id: &str,
        seq: u64,
        token: &str,
    ) -> Result<()>;
}

#[async_trait]
impl WebSocketGatewayClientExt for WsStream {
    #[instrument(skip(self))]
    async fn send_chunk_guild(
        &mut self,
        guild_id: GuildId,
        shard_info: &[u64; 2],
        limit: Option<u16>,
        filter: ChunkGuildFilter,
        nonce: Option<&str>,
    ) -> Result<()> {
        debug!("[Shard {:?}] Requesting member chunks", shard_info);

        let mut payload = json!({
            "op": OpCode::GetGuildMembers.num(),
            "d": {
                "guild_id": guild_id.as_ref().0.to_string(),
                "limit": limit.unwrap_or(0),
                "nonce": nonce.unwrap_or(""),
            },
        });

        match filter {
            ChunkGuildFilter::None => payload["d"]["query"] = json!(""),
            ChunkGuildFilter::Query(query) => payload["d"]["query"] = json!(query),
            ChunkGuildFilter::UserIds(user_ids) => {
                let ids = user_ids.iter().map(|x| x.0).collect::<Vec<u64>>();
                payload["d"]["user_ids"] = json!(ids)
            },
        };

        self.send_json(&payload).await.map_err(From::from)
    }

    #[instrument(skip(self))]
    async fn send_heartbeat(&mut self, shard_info: &[u64; 2], seq: Option<u64>) -> Result<()> {
        trace!("[Shard {:?}] Sending heartbeat d: {:?}", shard_info, seq);

        self.send_json(&json!({
            "d": seq,
            "op": OpCode::Heartbeat.num(),
        }))
        .await
        .map_err(From::from)
    }

    #[instrument(skip(self, token))]
    async fn send_identify(
        &mut self,
        shard_info: &[u64; 2],
        token: &str,
        intents: GatewayIntents,
    ) -> Result<()> {
        debug!("[Shard {:?}] Identifying", shard_info);

        self.send_json(&json!({
            "op": OpCode::Identify.num(),
            "d": {
                "compress": true,
                "large_threshold": constants::LARGE_THRESHOLD,
                "shard": shard_info,
                "token": token,
                "intents": intents,
                "v": constants::GATEWAY_VERSION,
                "properties": {
                    "$browser": "serenity",
                    "$device": "serenity",
                    "$os": consts::OS,
                },
            },
        }))
        .await
    }

    #[instrument(skip(self))]
    async fn send_presence_update(
        &mut self,
        shard_info: &[u64; 2],
        current_presence: &CurrentPresence,
    ) -> Result<()> {
        let &(ref activity, ref status) = current_presence;
        let now = SystemTime::now();

        debug!("[Shard {:?}] Sending presence update", shard_info);

        self.send_json(&json!({
            "op": OpCode::StatusUpdate.num(),
            "d": {
                "afk": false,
                "since": now,
                "status": status.name(),
                "game": activity.as_ref().map(|x| json!({
                    "name": x.name,
                    "type": x.kind,
                    "url": x.url,
                })),
            },
        }))
        .await
    }

    #[instrument(skip(self, token))]
    async fn send_resume(
        &mut self,
        shard_info: &[u64; 2],
        session_id: &str,
        seq: u64,
        token: &str,
    ) -> Result<()> {
        debug!("[Shard {:?}] Sending resume; seq: {}", shard_info, seq);

        self.send_json(&json!({
            "op": OpCode::Resume.num(),
            "d": {
                "session_id": session_id,
                "seq": seq,
                "token": token,
            },
        }))
        .await
        .map_err(From::from)
    }
}