tide-auth 0.1.0

This is the library for tide parsing the auth field
Documentation 
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use std::{borrow::Cow, str};

use crate::{
    traits::{AuthValue, Scheme},
    Error,
};
use async_trait::async_trait;

pub struct Bearer {
    bearer: Option<Cow<'static, str>>,
}

unsafe impl Send for Bearer {}

unsafe impl Sync for Bearer {}

impl Default for Bearer {
    fn default() -> Self {
        Bearer { bearer: None }
    }
}

impl Bearer {
    pub fn new<T: Into<String>>(bearer: T) -> Self {
        let bearer: String = bearer.into();

        Bearer {
            bearer: Some(bearer.into()),
        }
    }
}

#[async_trait]
impl Scheme for Bearer {
    fn header_name() -> http_types::headers::HeaderName {
        http_types::headers::AUTHORIZATION
    }

    async fn parse(
        &self,
        header_value: &http_types::headers::HeaderValue,
    ) -> crate::Result<crate::traits::AuthValue> {
        let bearer = if let Some(ref bearer) = self.bearer {
            bearer.to_string()
        } else {
            "Bearer".to_string()
        };

        if header_value.as_str().len() < bearer.len() + 2 {
            return Err(Error::Invalid);
        }

        let mut parts = header_value.as_str().splitn(2, ' ');

        match parts.next() {
            Some(scheme) if scheme == bearer => {}
            _ => return Err(Error::MissingScheme),
        }

        let value = parts.next().ok_or(Error::Invalid)?;

        Ok(AuthValue::Bearer(value.to_string()))
    }
}