sockudo 3.0.0

A simple, fast, and secure WebSocket server for real-time applications.
Documentation 
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

use crate::webhook::types::Webhook;
use ahash::AHashMap;
use serde::{Deserialize, Serialize};

#[derive(Debug, Clone, Serialize, Deserialize, Default)]
pub struct App {
    pub id: String,
    pub key: String,
    pub secret: String,
    #[serde(deserialize_with = "deserialize_flexible_number")]
    pub max_connections: u32,
    pub enable_client_messages: bool,
    pub enabled: bool,
    #[serde(default, deserialize_with = "deserialize_optional_number_from_string")]
    pub max_backend_events_per_second: Option<u32>,
    #[serde(deserialize_with = "deserialize_flexible_number")]
    pub max_client_events_per_second: u32,
    #[serde(default, deserialize_with = "deserialize_optional_number_from_string")]
    pub max_read_requests_per_second: Option<u32>,
    #[serde(default, deserialize_with = "deserialize_optional_number_from_string")]
    pub max_presence_members_per_channel: Option<u32>,
    #[serde(default, deserialize_with = "deserialize_optional_number_from_string")]
    pub max_presence_member_size_in_kb: Option<u32>,
    #[serde(default)]
    pub max_channel_name_length: Option<u32>,
    #[serde(default, deserialize_with = "deserialize_optional_number_from_string")]
    pub max_event_channels_at_once: Option<u32>,
    #[serde(default)]
    pub max_event_name_length: Option<u32>,
    #[serde(default, deserialize_with = "deserialize_optional_number_from_string")]
    pub max_event_payload_in_kb: Option<u32>,
    #[serde(default, deserialize_with = "deserialize_optional_number_from_string")]
    pub max_event_batch_size: Option<u32>,
    #[serde(default)]
    pub enable_user_authentication: Option<bool>,
    #[serde(default)]
    pub webhooks: Option<Vec<Webhook>>,
    #[serde(default)]
    pub enable_watchlist_events: Option<bool>,
    #[serde(default, deserialize_with = "deserialize_and_validate_origins")]
    pub allowed_origins: Option<Vec<String>>,
    #[serde(default)]
    pub channel_delta_compression:
        Option<AHashMap<String, crate::delta_compression::ChannelDeltaConfig>>,
}

// Helper functions to deserialize numbers from strings or numbers
fn deserialize_flexible_number<'de, D>(deserializer: D) -> Result<u32, D::Error>
where
    D: serde::Deserializer<'de>,
{
    use serde::de::{Error, Visitor};
    use std::fmt;

    struct FlexibleU32Visitor;

    impl<'de> Visitor<'de> for FlexibleU32Visitor {
        type Value = u32;

        fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
            formatter.write_str("a number or string containing a number")
        }

        fn visit_u32<E>(self, v: u32) -> Result<Self::Value, E>
        where
            E: Error,
        {
            Ok(v)
        }

        fn visit_i64<E>(self, v: i64) -> Result<Self::Value, E>
        where
            E: Error,
        {
            u32::try_from(v).map_err(|_| {
                if v < 0 {
                    E::custom(format!("number {} cannot be negative", v))
                } else {
                    E::custom(format!("number {} is too large for u32", v))
                }
            })
        }

        fn visit_u64<E>(self, v: u64) -> Result<Self::Value, E>
        where
            E: Error,
        {
            u32::try_from(v).map_err(|_| E::custom(format!("number {} is too large for u32", v)))
        }

        fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
        where
            E: Error,
        {
            v.parse::<u32>().map_err(E::custom)
        }
    }

    deserializer.deserialize_any(FlexibleU32Visitor)
}

fn deserialize_optional_number_from_string<'de, D>(deserializer: D) -> Result<Option<u32>, D::Error>
where
    D: serde::Deserializer<'de>,
{
    use serde::de::Error;
    let value = Option::<String>::deserialize(deserializer)?;
    match value {
        Some(s) => Ok(Some(s.parse::<u32>().map_err(D::Error::custom)?)),
        None => Ok(None),
    }
}

fn deserialize_and_validate_origins<'de, D>(
    deserializer: D,
) -> Result<Option<Vec<String>>, D::Error>
where
    D: serde::Deserializer<'de>,
{
    use serde::de::Error;
    let value = Option::<Vec<String>>::deserialize(deserializer)?;

    if let Some(ref origins) = value {
        // Validate origin patterns at configuration load time
        if let Err(validation_error) =
            crate::adapter::handler::origin_validation::OriginValidator::validate_patterns(origins)
        {
            return Err(D::Error::custom(format!(
                "Origin pattern validation failed: {}",
                validation_error
            )));
        }
    }

    Ok(value)
}

// Implementation with default values