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

use super::{Client, State};
use crate::ratelimiting::Ratelimiter;
use hyper::header::HeaderMap;
use std::{
    sync::{
        atomic::{AtomicBool, AtomicU64, Ordering},
        Arc,
    },
    time::Duration,
};
use twilight_model::{channel::message::allowed_mentions::AllowedMentions, id::ApplicationId};

#[derive(Debug)]
/// A builder for [`Client`].
pub struct ClientBuilder {
    pub(crate) application_id: AtomicU64,
    pub(crate) default_allowed_mentions: Option<AllowedMentions>,
    pub(crate) proxy: Option<Box<str>>,
    pub(crate) ratelimiter: Option<Ratelimiter>,
    pub(crate) default_headers: Option<HeaderMap>,
    pub(crate) timeout: Duration,
    pub(crate) token: Option<Box<str>>,
    pub(crate) use_http: bool,
}

impl ClientBuilder {
    /// Create a new builder to create a [`Client`].
    pub fn new() -> Self {
        Self::default()
    }

    /// Build the [`Client`].
    pub fn build(self) -> Client {
        #[cfg(feature = "rustls-native-roots")]
        let connector = hyper_rustls::HttpsConnector::with_native_roots();
        #[cfg(all(feature = "rustls-webpki-roots", not(feature = "rustls-native-roots")))]
        let connector = hyper_rustls::HttpsConnector::with_webpki_roots();
        #[cfg(all(
            feature = "hyper-tls",
            not(feature = "rustls-native-roots"),
            not(feature = "rustls-webpki-roots")
        ))]
        let connector = hyper_tls::HttpsConnector::new();

        let http = hyper::client::Builder::default().build(connector);

        Client {
            state: Arc::new(State {
                http,
                default_headers: self.default_headers,
                proxy: self.proxy,
                ratelimiter: self.ratelimiter,
                timeout: self.timeout,
                token_invalid: AtomicBool::new(false),
                token: self.token,
                application_id: self.application_id,
                default_allowed_mentions: self.default_allowed_mentions,
                use_http: self.use_http,
            }),
        }
    }

    /// Set the [`ApplicationId`] used by interaction methods.
    pub fn application_id(self, application_id: ApplicationId) -> Self {
        self.application_id
            .store(application_id.0, Ordering::Relaxed);

        self
    }

    /// Set the default allowed mentions setting to use on all messages sent through the HTTP
    /// client.
    pub fn default_allowed_mentions(mut self, allowed_mentions: AllowedMentions) -> Self {
        self.default_allowed_mentions.replace(allowed_mentions);

        self
    }

    /// Set the proxy to use for all HTTP(S) requests.
    ///
    /// **Note** that this isn't currently a traditional proxy, but is for
    /// working with something like [twilight's HTTP proxy server].
    ///
    /// # Examples
    ///
    /// Set the proxy to `twilight_http_proxy.internal`:
    ///
    /// ```rust
    /// use twilight_http::Client;
    ///
    /// # fn main() -> Result<(), Box<dyn std::error::Error>> {
    /// let client = Client::builder()
    ///     .proxy("twilight_http_proxy.internal", true)
    ///     .build();
    /// # Ok(()) }
    /// ```
    ///
    /// [twilight's HTTP proxy server]: https://github.com/twilight-rs/http-proxy
    pub fn proxy(mut self, proxy_url: impl Into<String>, use_http: bool) -> Self {
        self.proxy.replace(proxy_url.into().into_boxed_str());
        self.use_http = use_http;

        self
    }

    /// Set a ratelimiter to use.
    ///
    /// If the argument is `None` then the client's ratelimiter will be skipped
    /// before making a request.
    ///
    /// If this method is not called at all then a default ratelimiter will be
    /// created by [`ClientBuilder::build`].
    pub fn ratelimiter(mut self, ratelimiter: impl Into<Option<Ratelimiter>>) -> Self {
        self.ratelimiter = ratelimiter.into();

        self
    }

    /// Set the timeout for HTTP requests.
    ///
    /// The default is 10 seconds.
    pub const fn timeout(mut self, duration: Duration) -> Self {
        self.timeout = duration;

        self
    }

    /// Set a group headers which are sent in every request.
    pub fn default_headers(mut self, headers: HeaderMap) -> Self {
        self.default_headers.replace(headers);

        self
    }

    /// Set the token to use for HTTP requests.
    pub fn token(mut self, token: impl Into<String>) -> Self {
        let mut token = token.into();

        let is_bot = token.starts_with("Bot ");
        let is_bearer = token.starts_with("Bearer ");

        // Make sure it is either a bot or bearer token, and assume it's a bot
        // token if no prefix is given
        if !is_bot && !is_bearer {
            token.insert_str(0, "Bot ");
        }

        self.token.replace(token.into_boxed_str());

        self
    }
}

impl Default for ClientBuilder {
    fn default() -> Self {
        Self {
            application_id: AtomicU64::default(),
            default_allowed_mentions: None,
            default_headers: None,
            proxy: None,
            ratelimiter: Some(Ratelimiter::new()),
            timeout: Duration::from_secs(10),
            token: None,
            use_http: false,
        }
    }
}