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Storing error_chain version before trashing it

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Matthew Scheirer 2017-09-16 14:44:55 -04:00
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/target/
**/*.rs.bk
Cargo.lock
.vscode

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[package]
name = "oidc"
version = "0.1.0"
authors = ["Matthew Scheirer <matt.scheirer@gmail.com>"]
categories = ["web-programming", "authentication"]
description = "OpenID Connect client library using Reqwest"
license = "Apache-2.0"
keywords = ["sync", "authentication", "client", "reqwest",
"oauth", "openid", "openid_connect", "web"]
readme = "README.md"
[dependencies]
base64 = "0.6"
biscuit = { git = "https://github.com/Korvox/biscuit" }
error-chain = "0.11"
chrono = "0.4"
inth-oauth2 = "0.13"
reqwest = "0.7"
serde = "1"
serde_derive = "1"
serde_json = "1"
url = "1.5"
url_serde = "0.2"
validator = "0.6"
validator_derive = "0.6"

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use biscuit::Empty;
use biscuit::jwk::JWKSet;
use chrono::{Duration, Utc};
use inth_oauth2;
use url::Url;
use url_serde;
use validator::Validate;
use std::collections::HashSet;
use discovery::{self, Config, Discovered};
use error::{ErrorKind, Result};
use token::{Expiring, Token};
#[derive(Deserialize)]
pub struct Params {
pub client_id: String,
pub client_secret: String,
#[serde(with = "url_serde")]
pub redirect_url: Url,
}
/// Optional parameters that [OpenID specifies](https://openid.net/specs/openid-connect-basic-1_0.html#RequestParameters) for the auth URI.
/// Derives Default, so remember to ..Default::default() after you specify what you want.
#[derive(Default)]
pub struct Options {
pub nonce: Option<String>,
pub display: Option<Display>,
pub prompt: Option<HashSet<Prompt>>,
pub max_age: Option<Duration>,
pub ui_locales: Option<String>,
pub claims_locales: Option<String>,
pub id_token_hint: Option<String>,
pub login_hint: Option<String>,
pub acr_values: Option<String>,
}
pub enum Display {
Page,
Popup,
Touch,
Wap,
}
impl Display {
fn as_str(&self) -> &'static str {
match *self {
Display::Page => "page",
Display::Popup => "popup",
Display::Touch => "touch",
Display::Wap => "wap",
}
}
}
#[derive(PartialEq, Eq, Hash)]
pub enum Prompt {
None,
Login,
Consent,
SelectAccount,
}
impl Prompt {
fn as_str(&self) -> &'static str {
match self {
&Prompt::None => "none",
&Prompt::Login => "login",
&Prompt::Consent => "consent",
&Prompt::SelectAccount => "select_account",
}
}
}
/// The userinfo struct contains all possible userinfo fields regardless of scope. [See spec.](https://openid.net/specs/openid-connect-basic-1_0.html#StandardClaims)
// TODO is there a way to use claims_supported in config to simplify this struct?
#[derive(Deserialize, Validate)]
pub struct Userinfo {
pub sub: String,
pub name: Option<String>,
pub given_name: Option<String>,
pub family_name: Option<String>,
pub middle_name: Option<String>,
pub nickname: Option<String>,
pub preferred_username: Option<String>,
#[serde(with = "url_serde")]
pub profile: Option<Url>,
#[serde(with = "url_serde")]
pub picture: Option<Url>,
#[serde(with = "url_serde")]
pub website: Option<Url>,
#[validate(email)]
pub email: Option<String>,
pub email_verified: Option<bool>,
// Isn't required to be just male or female
pub gender: Option<String>,
// ISO 9601:2004 YYYY-MM-DD or YYYY. Would be nice to serialize to chrono::Date.
pub birthdate: Option<String>,
// Region/City codes. Should also have a more concrete serializer form.
pub zoneinfo: Option<String>,
// Usually RFC5646 langcode-countrycode, maybe with a _ sep, could be arbitrary
pub locale: Option<String>,
// Usually E.164 format number
pub phone_number: Option<String>,
pub phone_number_verified: Option<bool>,
pub address: Option<Address>,
pub updated_at: Option<i64>,
}
/// Address Claim struct. Can be only formatted, only the rest, or both.
#[derive(Deserialize)]
pub struct Address {
pub formatted: Option<String>,
pub street_address: Option<String>,
pub locality: Option<String>,
pub region: Option<String>,
// Countries like the UK use alphanumeric postal codes, so you can't just use a number here
pub postal_code: Option<String>,
pub country: Option<String>,
}
pub struct Client {
oauth: inth_oauth2::Client<Discovered>,
jwks: JWKSet<Empty>,
}
impl Client {
/// Constructs a client from an issuer url and client parameters via discovery
pub fn discover(issuer: &Url, params: Params) -> Result<Self> {
let config = discovery::discover(issuer)?;
let jwks = discovery::jwks(&config.jwks_uri)?;
let provider = Discovered { config };
Ok(Self::new(provider, params, jwks))
}
/// Constructs a client from a given provider, key set, and parameters. Unlike ::discover(..)
/// this function does not perform any network operations.
fn new(provider: Discovered, params: Params, jwks: JWKSet<Empty>) -> Self {
Client {
oauth: inth_oauth2::Client::new(
provider,
params.client_id,
params.client_secret,
Some(params.redirect_url.into_string())),
jwks
}
}
/// A reference to the config document of the provider obtained via discovery
pub fn config(&self) -> &Config {
&self.oauth.provider.config
}
/// Constructs the auth_url to redirect a client to the provider. Options are... optional. Use
/// them as needed. Keep the Options struct around for authentication, or at least the nonce
/// and max_age parameter - we need to verify they stay the same and validate if you used them.
pub fn auth_url(&self, scope: &str, state: &str, options: &Options) -> Result<Url>{
if !scope.contains("openid") {
return Err(ErrorKind::MissingOpenidScope.into())
}
let mut url = self.oauth.auth_uri(Some(&scope), Some(state))?;
{
let mut query = url.query_pairs_mut();
if let Some(ref nonce) = options.nonce {
query.append_pair("nonce", nonce.as_str());
}
if let Some(ref display) = options.display {
query.append_pair("display", display.as_str());
}
if let Some(ref prompt) = options.prompt {
let s = prompt.iter().map(|s| s.as_str()).collect::<Vec<_>>().join(" ");
query.append_pair("prompt", s.as_str());
}
if let Some(max_age) = options.max_age {
query.append_pair("max_age", max_age.num_seconds().to_string().as_str());
}
if let Some(ref ui_locales) = options.ui_locales {
query.append_pair("ui_locales", ui_locales.as_str());
}
if let Some(ref claims_locales) = options.claims_locales {
query.append_pair("claims_locales", claims_locales.as_str());
}
if let Some(ref id_token_hint) = options.id_token_hint {
query.append_pair("id_token_hint", id_token_hint.as_str());
}
if let Some(ref login_hint) = options.login_hint {
query.append_pair("login_hint", login_hint.as_str());
}
if let Some(ref acr_values) = options.acr_values {
query.append_pair("acr_values", acr_values.as_str());
}
}
Ok(url)
}
/// Given an auth_code, request the token, validate it, and if userinfo_endpoint exists
/// request that and give the response
pub fn authenticate(&self, auth_code: &str, options: &Options
) -> Result<(Token<Expiring>, Option<Userinfo>)> {
unimplemented!()
}
}

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use biscuit::Empty;
use biscuit::jwk::JWKSet;
use inth_oauth2::provider::Provider;
use url::Url;
use url_serde;
use validator::Validate;
use error::{Error, ErrorKind, Result};
use token::{Expiring, Token};
#[derive(Deserialize, Serialize)]
pub struct Config {
#[serde(with = "url_serde")]
pub issuer: Url,
#[serde(with = "url_serde")]
pub authorization_endpoint: Url,
#[serde(with = "url_serde")]
// Only optional in the implicit flow
// TODO For now, we only support code flows.
pub token_endpoint: Url,
#[serde(with = "url_serde")]
pub userinfo_endpoint: Option<Url>,
#[serde(with = "url_serde")]
pub jwks_uri: Url,
#[serde(with = "url_serde")]
pub registration_endpoint: Option<Url>,
pub scopes_supported: Option<Vec<String>>,
// There are only three valid response types, plus combinations of them, and none
// If we want to make these user friendly we want a struct to represent all 7 types
pub response_types_supported: Vec<String>,
// There are only two possible values here, query and fragment. Default is both.
pub response_modes_supported: Option<Vec<String>>,
// Must support at least authorization_code and implicit.
pub grant_types_supported: Option<Vec<String>>,
pub acr_values_supported: Option<Vec<String>>,
// pairwise and public are valid by spec, but servers can add more
pub subject_types_supported: Vec<String>,
// Must include at least RS256, none is only allowed with response types without id tokens
pub id_token_signing_alg_values_supported: Vec<String>,
pub id_token_encryption_alg_values_supported: Option<Vec<String>>,
pub id_token_encryption_enc_values_supported: Option<Vec<String>>,
pub userinfo_signing_alg_values_supported: Option<Vec<String>>,
pub userinfo_encryption_alg_values_supported: Option<Vec<String>>,
pub userinfo_encryption_enc_values_supported: Option<Vec<String>>,
pub request_object_signing_alg_values_supported: Option<Vec<String>>,
pub request_object_encryption_alg_values_supported: Option<Vec<String>>,
pub request_object_encryption_enc_values_supported: Option<Vec<String>>,
// Spec options are client_secret_post, client_secret_basic, client_secret_jwt, private_key_jwt
// If omitted, client_secret_basic is used
pub token_endpoint_auth_methods_supported: Option<Vec<String>>,
// Only wanted with jwt auth methods, should have RS256, none not allowed
pub token_endpoint_auth_signing_alg_values_supported: Option<Vec<String>>,
pub display_values_supported: Option<Vec<String>>,
// Valid options are normal, aggregated, and distributed. If omitted, only use normal
pub claim_types_supported: Option<Vec<String>>,
pub claims_supported: Option<Vec<Claim>>,
#[serde(with = "url_serde")]
pub service_documentation: Option<Url>,
pub claims_locales_supported: Option<Vec<String>>,
pub ui_locales_supported: Option<Vec<String>>,
// default false
pub claims_parameter_supported: Option<bool>,
// default false
pub request_parameter_supported: Option<bool>,
// default true
pub request_uri_parameter_supported: Option<bool>,
// default false
pub require_request_uri_registration: Option<bool>,
#[serde(with = "url_serde")]
pub op_policy_uri: Option<Url>,
#[serde(with = "url_serde")]
pub op_tos_uri: Option<Url>,
// This is a NONSTANDARD extension Google uses that is a part of the Oauth discovery draft
pub code_challenge_methods_supported: Option<Vec<String>>,
}
#[derive(Deserialize, Serialize)]
pub enum Claim {
Name(String),
FamilyName(String),
GivenName(String),
MiddleName(String),
Nickname(String),
PreferredUsername(String),
Profile(
#[serde(with = "url_serde")]
Url
),
Picture(
#[serde(with = "url_serde")]
Url
),
Website(
#[serde(with = "url_serde")]
Url
),
Gender(String),
Birthdate(String),
Zoneinfo(String),
Locale(String),
UpdatedAt(u64),
Email(Email),
}
#[derive(Debug, Deserialize, Serialize, Validate)]
pub struct Email {
#[validate(email)]
pub address: String,
}
pub struct Discovered {
pub config: Config,
}
impl Provider for Discovered {
type Lifetime = Expiring;
type Token = Token<Expiring>;
fn auth_uri(&self) -> &str {
self.config.authorization_endpoint.as_ref()
}
fn token_uri(&self) -> &str {
self.config.token_endpoint.as_ref()
}
}
pub fn discover(issuer: &Url) -> Result<Config> {
unimplemented!()
}
pub fn jwks(url: &Url) -> Result<JWKSet<Empty>> {
unimplemented!()
}

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use biscuit;
use inth_oauth2;
pub enum Decode {
MissingKid,
MissingKey,
EmptySet,
}
pub enum Validation {
Mismatch(Mismatch),
Missing(Missing),
Expired(Expiry),
}
pub enum Mismatch {
Audience,
Authorized,
Issuer,
Nonce,
Subject,
}
pub enum Missing {
AuthorizedParty,
AuthTime,
Nonce,
OpenidScope,
}
pub enum Expiry {
Expires,
IssuedAt,
MaxAge,
}
error_chain! {
foreign_links {
Oauth(inth_oauth2::ClientError);
Biscuit(biscuit::errors::Error);
}
errors {
MissingOpenidScope
}
}

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use url::Url;
// TODO these should all be const, or even better, static Urls...
pub fn google() -> Url {
Url::parse("https://accounts.google.com").unwrap()
}
pub fn paypal() -> Url {
Url::parse("https://www.paypalobjects.com/").unwrap()
}
pub fn salesforce() -> Url {
Url::parse("http://login.salesforce.com").unwrap()
}

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extern crate base64;
extern crate biscuit;
#[macro_use]
extern crate error_chain;
extern crate chrono;
extern crate inth_oauth2;
extern crate reqwest;
extern crate serde;
#[macro_use]
extern crate serde_derive;
extern crate serde_json;
extern crate url;
extern crate url_serde;
extern crate validator;
#[macro_use]
extern crate validator_derive;
pub mod client;
pub mod discovery;
pub mod error;
pub mod token;

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use base64;
use biscuit::{CompactJson, Empty, SingleOrMultiple};
use biscuit::jws::Compact;
use inth_oauth2::client::response::{FromResponse, ParseError};
use inth_oauth2::token::{self, Bearer, Lifetime};
use serde_json::Value;
use url::Url;
use url_serde;
/// Rexported lifetime token types from oauth
pub use inth_oauth2::token::{Expiring, Refresh, Static};
type IdToken = Compact<Claims, Empty>;
#[derive(Serialize, Deserialize)]
pub struct Claims {
#[serde(with = "url_serde")]
pub iss: Url,
// Max 255 ASCII chars
// Can't deserialize a [u8; 255]
pub sub: String,
// Either an array of audiences, or just the client_id
pub aud: SingleOrMultiple<String>,
// Not perfectly accurate for what time values we can get back...
// By spec, this is an arbitrarilly large number. In practice, an
// i64 unix time is up to 293 billion years from 1970.
//
// Make sure this cannot silently underflow, see:
// https://github.com/serde-rs/json/blob/8e01f44f479b3ea96b299efc0da9131e7aff35dc/src/de.rs#L341
pub exp: i64,
pub iat: i64,
// required for max_age request
pub auth_time: Option<i64>,
pub nonce: Option<String>,
// base64 encoded, need to decode it!
at_hash: Option<String>,
pub acr: Option<String>,
pub amr: Option<Vec<String>>,
// If exists, must be client_id
pub azp: Option<String>,
}
impl Claims {
/// Decodes at_hash. Returns None if it doesn't exist or something goes wrong.
///
/// See [spec 3.1.3.6](https://openid.net/specs/openid-connect-core-1_0.html#CodeIDToken)
///
/// The returned Vec is the first 128 bits of the access token hash using alg's hash alg
pub fn at_hash(&self) -> Option<Vec<u8>> {
if let Some(ref hash) = self.at_hash {
return base64::decode_config(hash.as_str(), base64::URL_SAFE).ok();
}
None
}
}
// THIS IS CRAZY VOODOO WITCHCRAFT MAGIC
impl CompactJson for Claims {}
/// An OpenID Connect token. This is the only token allowed by spec.
/// Has an access_token for bearer, and the id_token for authentication.
/// Wraps an oauth bearer token.
pub struct Token<L: Lifetime> {
bearer: Bearer<L>,
pub id_token: IdToken,
}
impl<L: Lifetime> Token<L> {
// Takes a json response object and parses out the id token
// TODO Support extracting a jwe token according to spec. Right now we only support jws tokens.
fn id_token(json: &Value) -> Result<IdToken, ParseError> {
let obj = json.as_object().ok_or(ParseError::ExpectedType("object"))?;
let token = obj.get("id_token").and_then(Value::as_str).ok_or(
ParseError::ExpectedFieldType("id_token", "string"),
)?;
Ok(Compact::new_encoded(token))
}
}
impl<L: Lifetime> token::Token<L> for Token<L> {
fn access_token(&self) -> &str {
self.bearer.access_token()
}
fn scope(&self) -> Option<&str> {
self.bearer.scope()
}
fn lifetime(&self) -> &L {
self.bearer.lifetime()
}
}
impl<L: Lifetime> FromResponse for Token<L> {
fn from_response(json: &Value) -> Result<Self, ParseError> {
let bearer = Bearer::from_response(json)?;
let id_token = Self::id_token(json)?;
Ok(Self { bearer, id_token })
}
fn from_response_inherit(json: &Value, prev: &Self) -> Result<Self, ParseError> {
let bearer = Bearer::from_response_inherit(json, &prev.bearer)?;
let id_token = Self::id_token(json)?;
Ok(Self { bearer, id_token })
}
}