431 lines
13 KiB
Rust
431 lines
13 KiB
Rust
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use std::borrow::Cow;
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use reqwest::{Client, RequestBuilder, Response};
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use try_from::TryInto;
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use url::percent_encoding::{utf8_percent_encode, DEFAULT_ENCODE_SET};
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use apps::{App, AppBuilder};
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use http_send::{HttpSend, HttpSender};
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use scopes::Scopes;
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use Data;
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use Error;
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use Mastodon;
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use MastodonBuilder;
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use Result;
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const DEFAULT_REDIRECT_URI: &'static str = "urn:ietf:wg:oauth:2.0:oob";
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/// Handles registering your mastodon app to your instance. It is recommended
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/// you cache your data struct to avoid registering on every run.
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#[derive(Debug, Clone)]
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pub struct Registration<'a, H: HttpSend = HttpSender> {
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base: String,
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client: Client,
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app_builder: AppBuilder<'a>,
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force_login: bool,
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http_sender: H,
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}
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#[derive(Deserialize)]
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struct OAuth {
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client_id: String,
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client_secret: String,
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#[serde(default = "default_redirect_uri")]
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redirect_uri: String,
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}
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fn default_redirect_uri() -> String {
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DEFAULT_REDIRECT_URI.to_string()
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}
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#[derive(Deserialize)]
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struct AccessToken {
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access_token: String,
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}
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impl<'a> Registration<'a, HttpSender> {
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/// Construct a new registration process to the instance of the `base` url.
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/// ```
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/// use elefren::prelude::*;
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///
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/// let registration = Registration::new("https://mastodon.social");
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/// ```
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pub fn new<I: Into<String>>(base: I) -> Self {
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Registration {
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base: base.into(),
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client: Client::new(),
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app_builder: AppBuilder::new(),
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force_login: false,
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http_sender: HttpSender,
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}
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}
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}
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impl<'a, H: HttpSend> Registration<'a, H> {
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#[allow(dead_code)]
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pub(crate) fn with_sender<I: Into<String>>(base: I, http_sender: H) -> Self {
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Registration {
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base: base.into(),
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client: Client::new(),
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app_builder: AppBuilder::new(),
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force_login: false,
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http_sender,
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}
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}
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/// Sets the name of this app
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///
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/// This is required, and if this isn't set then the AppBuilder::build
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/// method will fail
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pub fn client_name<I: Into<Cow<'a, str>>>(&mut self, name: I) -> &mut Self {
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self.app_builder.client_name(name.into());
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self
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}
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/// Sets the redirect uris that this app uses
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pub fn redirect_uris<I: Into<Cow<'a, str>>>(&mut self, uris: I) -> &mut Self {
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self.app_builder.redirect_uris(uris);
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self
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}
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/// Sets the scopes that this app requires
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///
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/// The default for an app is Scopes::Read
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pub fn scopes(&mut self, scopes: Scopes) -> &mut Self {
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self.app_builder.scopes(scopes);
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self
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}
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/// Sets the optional "website" to register the app with
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pub fn website<I: Into<Cow<'a, str>>>(&mut self, website: I) -> &mut Self {
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self.app_builder.website(website);
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self
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}
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/// Forces the user to re-login (useful if you need to re-auth as a
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/// different user on the same instance
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pub fn force_login(&mut self, force_login: bool) -> &mut Self {
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self.force_login = force_login;
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self
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}
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fn send(&self, req: RequestBuilder) -> Result<Response> {
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Ok(self.http_sender.send(&self.client, req)?)
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}
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/// Register the given application
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///
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/// ```no_run
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/// # extern crate elefren;
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/// # fn main () -> elefren::Result<()> {
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/// use elefren::{apps::App, prelude::*};
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///
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/// let mut app = App::builder();
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/// app.client_name("elefren_test");
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///
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/// let registration = Registration::new("https://mastodon.social").register(app)?;
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/// let url = registration.authorize_url()?;
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/// // Here you now need to open the url in the browser
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/// // And handle a the redirect url coming back with the code.
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/// let code = String::from("RETURNED_FROM_BROWSER");
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/// let mastodon = registration.complete(&code)?;
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///
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/// println!("{:?}", mastodon.get_home_timeline()?.initial_items);
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/// # Ok(())
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/// # }
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/// ```
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pub fn register<I: TryInto<App>>(&mut self, app: I) -> Result<Registered<H>>
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where
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Error: From<<I as TryInto<App>>::Err>,
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{
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let app = app.try_into()?;
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let oauth = self.send_app(&app)?;
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Ok(Registered {
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base: self.base.clone(),
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client: self.client.clone(),
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client_id: oauth.client_id,
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client_secret: oauth.client_secret,
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redirect: oauth.redirect_uri,
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scopes: app.scopes().clone(),
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force_login: self.force_login,
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http_sender: self.http_sender.clone(),
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})
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}
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/// Register the application with the server from the `base` url.
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///
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/// ```no_run
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/// # extern crate elefren;
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/// # fn main () -> elefren::Result<()> {
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/// use elefren::prelude::*;
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///
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/// let registration = Registration::new("https://mastodon.social")
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/// .client_name("elefren_test")
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/// .build()?;
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/// let url = registration.authorize_url()?;
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/// // Here you now need to open the url in the browser
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/// // And handle a the redirect url coming back with the code.
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/// let code = String::from("RETURNED_FROM_BROWSER");
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/// let mastodon = registration.complete(&code)?;
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///
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/// println!("{:?}", mastodon.get_home_timeline()?.initial_items);
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/// # Ok(())
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/// # }
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/// ```
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pub fn build(&mut self) -> Result<Registered<H>> {
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let app: App = self.app_builder.clone().build()?;
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let oauth = self.send_app(&app)?;
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Ok(Registered {
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base: self.base.clone(),
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client: self.client.clone(),
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client_id: oauth.client_id,
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client_secret: oauth.client_secret,
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redirect: oauth.redirect_uri,
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scopes: app.scopes().clone(),
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force_login: self.force_login,
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http_sender: self.http_sender.clone(),
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})
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}
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fn send_app(&self, app: &App) -> Result<OAuth> {
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let url = format!("{}/api/v1/apps", self.base);
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Ok(self.send(self.client.post(&url).json(&app))?.json()?)
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}
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}
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impl Registered<HttpSender> {
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/// Skip having to retrieve the client id and secret from the server by
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/// creating a `Registered` struct directly
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///
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/// # Example
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///
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/// ```no_run
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/// # extern crate elefren;
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/// # fn main() -> elefren::Result<()> {
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/// use elefren::{prelude::*, registration::Registered};
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///
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/// let registration = Registered::from_parts(
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/// "https://example.com",
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/// "the-client-id",
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/// "the-client-secret",
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/// "https://example.com/redirect",
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/// Scopes::read_all(),
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/// false,
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/// );
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/// let url = registration.authorize_url()?;
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/// // Here you now need to open the url in the browser
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/// // And handle a the redirect url coming back with the code.
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/// let code = String::from("RETURNED_FROM_BROWSER");
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/// let mastodon = registration.complete(&code)?;
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///
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/// println!("{:?}", mastodon.get_home_timeline()?.initial_items);
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/// # Ok(())
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/// # }
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/// ```
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pub fn from_parts(
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base: &str,
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client_id: &str,
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client_secret: &str,
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redirect: &str,
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scopes: Scopes,
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force_login: bool,
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) -> Registered<HttpSender> {
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Registered {
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base: base.to_string(),
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client: Client::new(),
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client_id: client_id.to_string(),
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client_secret: client_secret.to_string(),
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redirect: redirect.to_string(),
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scopes,
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force_login,
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http_sender: HttpSender,
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}
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}
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}
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impl<H: HttpSend> Registered<H> {
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fn send(&self, req: RequestBuilder) -> Result<Response> {
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Ok(self.http_sender.send(&self.client, req)?)
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}
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/// Returns the parts of the `Registered` struct that can be used to
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/// recreate another `Registered` struct
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///
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/// # Example
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///
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/// ```
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/// # extern crate elefren;
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/// use elefren::{prelude::*, registration::Registered};
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/// # fn main() -> Result<(), Box<std::error::Error>> {
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///
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/// let origbase = "https://example.social";
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/// let origclient_id = "some-client_id";
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/// let origclient_secret = "some-client-secret";
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/// let origredirect = "https://example.social/redirect";
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/// let origscopes = Scopes::all();
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/// let origforce_login = false;
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///
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/// let registered = Registered::from_parts(
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/// origbase,
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/// origclient_id,
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/// origclient_secret,
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/// origredirect,
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/// origscopes.clone(),
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/// origforce_login,
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/// );
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///
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/// let (base, client_id, client_secret, redirect, scopes, force_login) = registered.into_parts();
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///
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/// assert_eq!(origbase, &base);
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/// assert_eq!(origclient_id, &client_id);
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/// assert_eq!(origclient_secret, &client_secret);
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/// assert_eq!(origredirect, &redirect);
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/// assert_eq!(origscopes, scopes);
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/// assert_eq!(origforce_login, force_login);
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/// # Ok(())
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/// # }
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/// ```
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pub fn into_parts(self) -> (String, String, String, String, Scopes, bool) {
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(
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self.base,
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self.client_id,
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self.client_secret,
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self.redirect,
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self.scopes,
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self.force_login,
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)
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}
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/// Returns the full url needed for authorisation. This needs to be opened
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/// in a browser.
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pub fn authorize_url(&self) -> Result<String> {
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let scopes = format!("{}", self.scopes);
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let scopes: String = utf8_percent_encode(&scopes, DEFAULT_ENCODE_SET).collect();
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let url = if self.force_login {
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format!(
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"{}/oauth/authorize?client_id={}&redirect_uri={}&scope={}&force_login=true&\
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response_type=code",
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self.base, self.client_id, self.redirect, scopes,
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)
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} else {
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format!(
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"{}/oauth/authorize?client_id={}&redirect_uri={}&scope={}&response_type=code",
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self.base, self.client_id, self.redirect, scopes,
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)
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};
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Ok(url)
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}
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/// Create an access token from the client id, client secret, and code
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/// provided by the authorisation url.
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pub fn complete(&self, code: &str) -> Result<Mastodon<H>> {
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let url = format!(
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"{}/oauth/token?client_id={}&client_secret={}&code={}&grant_type=authorization_code&\
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redirect_uri={}",
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self.base, self.client_id, self.client_secret, code, self.redirect
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);
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let token: AccessToken = self.send(self.client.post(&url))?.json()?;
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let data = Data {
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base: self.base.clone().into(),
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client_id: self.client_id.clone().into(),
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client_secret: self.client_secret.clone().into(),
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redirect: self.redirect.clone().into(),
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token: token.access_token.into(),
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};
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let mut builder = MastodonBuilder::new(self.http_sender.clone());
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builder.client(self.client.clone()).data(data);
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Ok(builder.build()?)
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}
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}
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/// Represents the state of the auth flow when the app has been registered but
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/// the user is not authenticated
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#[derive(Debug, Clone)]
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pub struct Registered<H: HttpSend> {
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base: String,
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client: Client,
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client_id: String,
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client_secret: String,
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redirect: String,
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scopes: Scopes,
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force_login: bool,
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http_sender: H,
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_registration_new() {
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let r = Registration::new("https://example.com");
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assert_eq!(r.base, "https://example.com".to_string());
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assert_eq!(r.app_builder, AppBuilder::new());
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assert_eq!(r.http_sender, HttpSender);
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}
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#[test]
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fn test_registration_with_sender() {
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let r = Registration::with_sender("https://example.com", HttpSender);
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assert_eq!(r.base, "https://example.com".to_string());
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assert_eq!(r.app_builder, AppBuilder::new());
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assert_eq!(r.http_sender, HttpSender);
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}
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#[test]
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fn test_set_client_name() {
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let mut r = Registration::new("https://example.com");
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r.client_name("foo-test");
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assert_eq!(r.base, "https://example.com".to_string());
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assert_eq!(
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&mut r.app_builder,
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AppBuilder::new().client_name("foo-test")
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);
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}
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#[test]
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fn test_set_redirect_uris() {
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let mut r = Registration::new("https://example.com");
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r.redirect_uris("https://foo.com");
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assert_eq!(r.base, "https://example.com".to_string());
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assert_eq!(
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&mut r.app_builder,
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AppBuilder::new().redirect_uris("https://foo.com")
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);
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}
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#[test]
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fn test_set_scopes() {
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let mut r = Registration::new("https://example.com");
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r.scopes(Scopes::all());
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assert_eq!(r.base, "https://example.com".to_string());
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assert_eq!(&mut r.app_builder, AppBuilder::new().scopes(Scopes::all()));
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}
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#[test]
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fn test_set_website() {
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let mut r = Registration::new("https://example.com");
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r.website("https://website.example.com");
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assert_eq!(r.base, "https://example.com".to_string());
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assert_eq!(
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&mut r.app_builder,
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AppBuilder::new().website("https://website.example.com")
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);
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}
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#[test]
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fn test_default_redirect_uri() {
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assert_eq!(&default_redirect_uri()[..], DEFAULT_REDIRECT_URI);
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}
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}
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