sipbot 0.2.28

A simple SIP bot with RTP
Documentation 
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use anyhow::{Context, Result};
use serde::Deserialize;
use std::path::Path;
use tokio::fs;

#[derive(Debug, Deserialize, Clone)]
pub struct Config {
    pub addr: Option<String>,
    pub external_ip: Option<String>,
    pub recorders: Option<String>,
    pub accounts: Vec<AccountConfig>,
}

impl Config {
    pub async fn load(path: impl AsRef<Path>) -> Result<Self> {
        let content = fs::read_to_string(path)
            .await
            .context("Failed to read config file")?;
        let config: Config = toml::from_str(&content).context("Failed to parse config file")?;
        Ok(config)
    }
}

#[derive(Debug, Deserialize, Clone, Default)]
pub struct AccountConfig {
    pub username: String,
    pub auth_username: Option<String>,
    pub domain: String,
    pub password: Option<String>,
    pub proxy: Option<String>,
    pub register: Option<bool>,              // Default to true if missing
    pub target: Option<String>,              // Target URI for outbound calls
    pub record: Option<String>,              // Recording file path
    pub srtp_enabled: Option<bool>,          // Enable SRTP/SDES
    pub nack_enabled: Option<bool>,          // Enable NACK
    pub jitter_buffer_enabled: Option<bool>, // Enable Jitter Buffer
    pub reject_prob: Option<u8>,             // Reject probability (1-99%)
    pub codecs: Option<Vec<String>>,         // Preferred codecs (opus, g722, g729, pcmu, pcma)
    pub headers: Option<Vec<String>>,        // Custom SIP headers (e.g., "X-Custom: value")
    #[serde(default)]
    pub cancel_prob: u8, // Cancel probability (1-99%)

    // Stage 1: Early Media (183)
    pub early_media: Option<EarlyMediaConfig>,

    // Stage 2: Ring (Wait with optional Ringing/Ringback)
    pub ring: Option<RingConfig>,

    // Stage 3: Answer (200 OK)
    pub answer: Option<AnswerConfig>,

    // Stage 4: Hangup
    pub hangup: Option<HangupConfig>,

    // REFER handling (for transfer testing)
    pub refer_reject: Option<u16>, // If set, reject REFER with this status code (e.g., 405)
}

#[derive(Debug, Deserialize, Clone)]
pub struct EarlyMediaConfig {
    pub wav_file: Option<String>,
    pub local: Option<bool>,
}

#[derive(Debug, Deserialize, Clone)]
pub struct RingConfig {
    pub duration_secs: u64,
    pub ringback: Option<String>, // Optional wav file for 183, otherwise 180
    pub local: Option<bool>,
}

#[derive(Debug, Deserialize, Clone)]
#[serde(tag = "action", rename_all = "snake_case")]
pub enum AnswerConfig {
    Play { wav_file: String },
    Echo,
    Local,
}

#[derive(Debug, Deserialize, Clone)]
pub struct HangupConfig {
    pub code: u16, // SIP Code (e.g., 603, 486). If 0/200 and answered, send BYE.
    pub after_secs: Option<u64>, // Delay before hanging up
}