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Do pictrs transformations for proxied image urls. (#4895)
- Fixes #4893
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53a226b944
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@ -41,12 +41,66 @@ pub fn config(
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.service(web::resource("/pictrs/image/delete/{token}/{filename}").route(web::get().to(delete)));
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}
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#[derive(Deserialize)]
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trait ProcessUrl {
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/// If thumbnail or format is given, this uses the pictrs process endpoint.
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/// Otherwise, it uses the normal pictrs url (IE image/original).
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fn process_url(&self, image_url: &str, pictrs_url: &Url) -> String;
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}
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#[derive(Deserialize, Clone)]
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struct PictrsGetParams {
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format: Option<String>,
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thumbnail: Option<i32>,
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}
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impl ProcessUrl for PictrsGetParams {
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fn process_url(&self, src: &str, pictrs_url: &Url) -> String {
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if self.format.is_none() && self.thumbnail.is_none() {
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format!("{}image/original/{}", pictrs_url, src)
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} else {
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// Take file type from name, or jpg if nothing is given
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let format = self
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.clone()
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.format
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.unwrap_or_else(|| src.split('.').last().unwrap_or("jpg").to_string());
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let mut url = format!("{}image/process.{}?src={}", pictrs_url, format, src);
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if let Some(size) = self.thumbnail {
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url = format!("{url}&thumbnail={size}",);
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}
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url
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}
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}
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}
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#[derive(Deserialize, Clone)]
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pub struct ImageProxyParams {
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url: String,
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format: Option<String>,
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thumbnail: Option<i32>,
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}
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impl ProcessUrl for ImageProxyParams {
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fn process_url(&self, proxy_url: &str, pictrs_url: &Url) -> String {
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if self.format.is_none() && self.thumbnail.is_none() {
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format!("{}image/original?proxy={}", pictrs_url, proxy_url)
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} else {
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// Take file type from name, or jpg if nothing is given
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let format = self
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.clone()
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.format
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.unwrap_or_else(|| proxy_url.split('.').last().unwrap_or("jpg").to_string());
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let mut url = format!("{}image/process.{}?proxy={}", pictrs_url, format, proxy_url);
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if let Some(size) = self.thumbnail {
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url = format!("{url}&thumbnail={size}",);
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}
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url
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}
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}
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}
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fn adapt_request(
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request: &HttpRequest,
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client: &ClientWithMiddleware,
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@ -133,23 +187,10 @@ async fn full_res(
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// If there are no query params, the URL is original
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let pictrs_config = context.settings().pictrs_config()?;
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let url = if params.format.is_none() && params.thumbnail.is_none() {
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format!("{}image/original/{}", pictrs_config.url, name,)
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} else {
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// Take file type from name, or jpg if nothing is given
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let format = params
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.format
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.unwrap_or_else(|| name.split('.').last().unwrap_or("jpg").to_string());
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let mut url = format!("{}image/process.{}?src={}", pictrs_config.url, format, name,);
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let processed_url = params.process_url(name, &pictrs_config.url);
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if let Some(size) = params.thumbnail {
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url = format!("{url}&thumbnail={size}",);
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}
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url
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};
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image(url, req, &client).await
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image(processed_url, req, &client).await
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}
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async fn image(
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@ -208,11 +249,6 @@ async fn delete(
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Ok(HttpResponse::build(res.status()).body(BodyStream::new(res.bytes_stream())))
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}
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#[derive(Deserialize)]
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pub struct ImageProxyParams {
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url: String,
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}
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pub async fn image_proxy(
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Query(params): Query<ImageProxyParams>,
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req: HttpRequest,
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@ -226,9 +262,10 @@ pub async fn image_proxy(
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RemoteImage::validate(&mut context.pool(), url.clone().into()).await?;
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let pictrs_config = context.settings().pictrs_config()?;
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let url = format!("{}image/original?proxy={}", pictrs_config.url, ¶ms.url);
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image(url, req, &client).await
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let processed_url = params.process_url(¶ms.url, &pictrs_config.url);
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image(processed_url, req, &client).await
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}
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fn make_send<S>(mut stream: S) -> impl Stream<Item = S::Item> + Send + Unpin + 'static
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