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use error::S3Result;
use std::env;
use dirs;
use ini::Ini;
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct Credentials {
pub access_key: String,
pub secret_key: String,
pub token: Option<String>,
_private: (),
}
impl Credentials {
pub fn new(access_key: Option<String>, secret_key: Option<String>, token: Option<String>, profile: Option<String>) -> Credentials {
let credentials = match access_key {
Some(key) => match secret_key {
Some(secret) => {
match token {
Some(t) => {
Some(Credentials {
access_key: key,
secret_key: secret,
token: Some(t),
_private: (),
})
}
None => {
Some(Credentials {
access_key: key,
secret_key: secret,
token: None,
_private: (),
})
}
}
}
None => None
}
None => None
};
match credentials {
Some(c) => c,
None => match Credentials::from_env() {
Ok(c) => c,
Err(_) => match Credentials::from_profile(profile) {
Ok(c) => c,
Err(e) => panic!("No credentials provided as arguments, in the environment or in the profile file. \n {}", e)
}
}
}
}
fn from_env() -> S3Result<Credentials> {
let access_key = env::var("AWS_ACCESS_KEY_ID")?;
let secret_key = env::var("AWS_SECRET_ACCESS_KEY")?;
let token = match env::var("AWS_SESSION_TOKEN") {
Ok(x) => Some(x),
Err(_) => None
};
Ok(Credentials { access_key, secret_key, token, _private: () })
}
fn from_profile(section: Option<String>) -> S3Result<Credentials> {
let home_dir = match dirs::home_dir() {
Some(path) => path,
None => bail!("Impossible to get your home dir!"),
};
let profile = format!("{}/.aws/credentials", home_dir.display());
let conf = Ini::load_from_file(&profile)?;
let section = match section {
Some(s) => s,
None => String::from("default")
};
let data = match conf.section(Some(section.clone())) {
Some(d) => d,
None => bail!("Section [{}] not found in {}", section, profile)
};
let access_key = match data.get("aws_access_key_id") {
Some(x) => x,
None => bail!("Missing aws_access_key_id in {}", profile)
};
let secret_key = match data.get("aws_secret_access_key") {
Some(x) => x,
None => bail!("Missing aws_secret_access_key in {}", profile)
};
Ok(Credentials { access_key: access_key.to_owned(), secret_key: secret_key.to_owned(), token: None, _private: () })
}
}
impl Default for Credentials {
fn default() -> Self {
Credentials::new(None, None, None, None)
}
}