mirror of https://github.com/LemmyNet/lemmy.git
73 lines
1.8 KiB
Rust
73 lines
1.8 KiB
Rust
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use anyhow::anyhow;
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use lemmy_utils::{
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request::{retry, RecvError},
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settings::structs::Settings,
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LemmyError,
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};
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use log::debug;
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use reqwest::Client;
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use serde::{Deserialize, Serialize};
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use url::Url;
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#[derive(Serialize, Deserialize, Debug)]
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pub struct WebfingerLink {
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pub rel: Option<String>,
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#[serde(rename(serialize = "type", deserialize = "type"))]
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pub type_: Option<String>,
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pub href: Option<Url>,
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#[serde(skip_serializing_if = "Option::is_none")]
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pub template: Option<String>,
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}
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#[derive(Serialize, Deserialize, Debug)]
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pub struct WebfingerResponse {
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pub subject: String,
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pub aliases: Vec<Url>,
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pub links: Vec<WebfingerLink>,
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}
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pub enum WebfingerType {
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Person,
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Group,
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}
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/// Turns a person id like `@name@example.com` into an apub ID, like `https://example.com/user/name`,
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/// using webfinger.
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pub async fn webfinger_resolve_actor(
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name: &str,
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domain: &str,
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webfinger_type: WebfingerType,
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client: &Client,
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) -> Result<Url, LemmyError> {
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let webfinger_type = match webfinger_type {
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WebfingerType::Person => "acct",
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WebfingerType::Group => "group",
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};
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let fetch_url = format!(
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"{}://{}/.well-known/webfinger?resource={}:{}@{}",
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Settings::get().get_protocol_string(),
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domain,
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webfinger_type,
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name,
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domain
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);
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debug!("Fetching webfinger url: {}", &fetch_url);
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let response = retry(|| client.get(&fetch_url).send()).await?;
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let res: WebfingerResponse = response
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.json()
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.await
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.map_err(|e| RecvError(e.to_string()))?;
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let link = res
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.links
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.iter()
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.find(|l| l.type_.eq(&Some("application/activity+json".to_string())))
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.ok_or_else(|| anyhow!("No application/activity+json link found."))?;
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link
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.href
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.to_owned()
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.ok_or_else(|| anyhow!("No href found.").into())
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}
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