121 lines
3.6 KiB
Rust
121 lines
3.6 KiB
Rust
use std::path::PathBuf;
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use serde_json::Value;
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use crate::models::profiles::types::ProfileCreateData;
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use crate::utils::files::{save_file, FileError};
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use crate::webfinger::types::JsonResourceDescriptor;
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use super::actor::Actor;
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use super::constants::ACTIVITY_CONTENT_TYPE;
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#[derive(thiserror::Error, Debug)]
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pub enum FetchError {
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#[error("invalid URL")]
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UrlError(#[from] url::ParseError),
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#[error(transparent)]
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RequestError(#[from] reqwest::Error),
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#[error("json parse error")]
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JsonParseError(#[from] serde_json::Error),
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#[error("file error")]
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FileError(#[from] FileError),
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#[error("{0}")]
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OtherError(&'static str),
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}
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pub async fn fetch_avatar_and_banner(
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actor: &Actor,
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media_dir: &PathBuf,
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) -> Result<(Option<String>, Option<String>), FetchError> {
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let avatar = match &actor.icon {
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Some(icon) => {
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let file_name = fetch_attachment(
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&icon.url,
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media_dir,
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).await?;
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Some(file_name)
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},
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None => None,
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};
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let banner = match &actor.image {
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Some(image) => {
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let file_name = fetch_attachment(
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&image.url,
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media_dir,
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).await?;
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Some(file_name)
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},
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None => None,
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};
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Ok((avatar, banner))
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}
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pub async fn fetch_profile(
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username: &str,
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instance_uri: &str,
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media_dir: &PathBuf,
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) -> Result<ProfileCreateData, FetchError> {
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let actor_address = format!("{}@{}", &username, &instance_uri);
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let webfinger_account_uri = format!("acct:{}", actor_address);
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// TOOD: support http
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let webfinger_url = format!("https://{}/.well-known/webfinger", instance_uri);
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let client = reqwest::Client::new();
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let webfinger_data = client.get(&webfinger_url)
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.query(&[("resource", webfinger_account_uri)])
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.send().await?
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.text().await?;
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let jrd: JsonResourceDescriptor = serde_json::from_str(&webfinger_data)?;
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let link = jrd.links.iter()
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.find(|link| link.rel == "self")
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.ok_or(FetchError::OtherError("self link not found"))?;
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let actor_url = link.href.as_ref()
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.ok_or(FetchError::OtherError("account href not found"))?;
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fetch_profile_by_actor_id(actor_url, media_dir).await
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}
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pub async fn fetch_profile_by_actor_id(
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actor_url: &str,
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media_dir: &PathBuf,
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) -> Result<ProfileCreateData, FetchError> {
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let actor_host = url::Url::parse(actor_url)?
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.host_str()
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.ok_or(FetchError::OtherError("invalid URL"))?
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.to_owned();
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let client = reqwest::Client::new();
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let actor_json = client.get(actor_url)
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.header(reqwest::header::ACCEPT, ACTIVITY_CONTENT_TYPE)
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.send().await?
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.text().await?;
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let actor_value: Value = serde_json::from_str(&actor_json)?;
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let actor: Actor = serde_json::from_value(actor_value.clone())?;
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let (avatar, banner) = fetch_avatar_and_banner(&actor, media_dir).await?;
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let actor_address = format!(
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"{}@{}",
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actor.preferred_username,
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actor_host,
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);
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let profile_data = ProfileCreateData {
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username: actor.preferred_username,
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display_name: Some(actor.name),
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acct: actor_address,
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bio: actor.summary,
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avatar: avatar,
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banner: banner,
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actor: Some(actor_value),
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};
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Ok(profile_data)
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}
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pub async fn fetch_attachment(
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url: &str,
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output_dir: &PathBuf,
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) -> Result<String, FetchError> {
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let response = reqwest::get(url).await?;
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let file_data = response.bytes().await?;
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let file_name = save_file(file_data.to_vec(), output_dir)?;
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Ok(file_name)
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}
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