Fix lint/clippy

src/api/client_server/media.rs

@@ -4,9 +4,10 @@
 use std::time::Duration;
 
 use crate::{
-    service::media::{FileMeta, UrlPreviewData},
     config::UrlPreviewPermission,
-    services, utils, Error, Result, Ruma};
+    service::media::{FileMeta, UrlPreviewData},
+    services, utils, Error, Result, Ruma,
+};
 use hickory_resolver::error::ResolveErrorKind;
 use http::header::{CONTENT_DISPOSITION, CONTENT_TYPE};
 use ruma::{
@@ -16,9 +17,7 @@ use ruma::{
                 get_content, get_content_as_filename, get_content_thumbnail, get_media_config,
             },
             error::ErrorKind,
-            media::{
-                self, create_content, get_media_preview,
-            },
+            media::{self, create_content, get_media_preview},
         },
         federation::authenticated_media::{self as federation_media, FileOrLocation},
     },
@@ -27,12 +26,10 @@ use ruma::{
     ServerName, UInt,
 };
 
-use {
-    webpage::HTML,
-    reqwest::Url,
-    std::{io::Cursor, net::IpAddr, sync::Arc},
-    image::io::Reader as ImgReader,
-};
+use image::io::Reader as ImgReader;
+use reqwest::Url;
+use std::{io::Cursor, net::IpAddr, sync::Arc};
+use webpage::HTML;
 
 const MXC_LENGTH: usize = 32;
 
@@ -58,17 +55,15 @@ pub async fn get_media_config_auth_route(
     })
 }
 
-async fn download_image(
-    client: &reqwest::Client,
-    url: &str,
-) -> Result<UrlPreviewData> {
+async fn download_image(client: &reqwest::Client, url: &str) -> Result<UrlPreviewData> {
     let image = client.get(url).send().await?.bytes().await?;
     let mxc = format!(
         "mxc://{}/{}",
         services().globals.server_name(),
         utils::random_string(MXC_LENGTH)
     );
-    services().media
+    services()
+        .media
         .create(mxc.clone(), None, None, &image)
         .await?;
 
@@ -89,10 +84,7 @@ async fn download_image(
     })
 }
 
-async fn download_html(
-    client: &reqwest::Client,
-    url: &str,
-) -> Result<UrlPreviewData> {
+async fn download_html(client: &reqwest::Client, url: &str) -> Result<UrlPreviewData> {
     let max_download_size = 300_000;
 
     let mut response = client.get(url).send().await?;
@@ -122,7 +114,11 @@ async fn download_html(
 
     let props = html.opengraph.properties;
     /* use OpenGraph title/description, but fall back to HTML if not available */
-    data.title = props.get("title").cloned().or(html.title).unwrap_or(String::from(url));
+    data.title = props
+        .get("title")
+        .cloned()
+        .or(html.title)
+        .unwrap_or(String::from(url));
     data.description = props.get("description").cloned().or(html.description);
     Ok(data)
 }
@@ -169,7 +165,7 @@ fn is_ip_external(addr: &IpAddr) -> bool {
                         // AS112-v6 (`2001:4:112::/48`)
                         || matches!(ip6.segments(), [0x2001, 4, 0x112, _, _, _, _, _])
                         // ORCHIDv2 (`2001:20::/28`)
-                        || matches!(ip6.segments(), [0x2001, b, _, _, _, _, _, _] if b >= 0x20 && b <= 0x2F)
+                        || matches!(ip6.segments(), [0x2001, b, _, _, _, _, _, _] if (0x20..=0x2f).contains(&b))
                     ))
                 || ((ip6.segments()[0] == 0x2001) && (ip6.segments()[1] == 0xdb8)) // is_documentation()
                 || ((ip6.segments()[0] & 0xfe00) == 0xfc00) // is_unique_local()
@@ -187,28 +183,39 @@ async fn request_url_preview(url: &Url) -> Result<UrlPreviewData> {
     let dns_resolver = services().globals.dns_resolver();
     match dns_resolver.lookup_ip(format!("{host}.")).await {
         Err(_) => {
-            return Err(Error::BadServerResponse("Failed to resolve media preview host"));
-        },
+            return Err(Error::BadServerResponse(
+                "Failed to resolve media preview host",
+            ));
+        }
         Ok(lookup) if lookup.iter().any(|ip| !is_ip_external(&ip)) => {
-            return Err(Error::BadRequest(ErrorKind::Unknown, "Requesting from this address forbidden"));
-        },
-        Ok(_) => { },
+            return Err(Error::BadRequest(
+                ErrorKind::Unknown,
+                "Requesting from this address forbidden",
+            ));
+        }
+        Ok(_) => {}
     }
 
     // Spamhaus API is over DNS. Query the API domain, no result = no block
     // https://docs.spamhaus.com/datasets/docs/source/70-access-methods/data-query-service/040-dqs-queries.html
     if services().globals.url_previews().use_spamhaus_denylist {
         let resolver = services().globals.dns_resolver();
-        match resolver.lookup_ip(format!("{host}.dbl.spamhaus.org.")).await {
+        match resolver
+            .lookup_ip(format!("{host}.dbl.spamhaus.org."))
+            .await
+        {
             Err(e) => {
-                if let ResolveErrorKind::NoRecordsFound { .. } = e.kind() { }
-                else {
+                if let ResolveErrorKind::NoRecordsFound { .. } = e.kind() {
+                } else {
                     tracing::log::warn!("Failed to check Spamhaus denylist: {}", e);
                 }
-            },
+            }
             Ok(_) => {
-                return Err(Error::BadRequest(ErrorKind::Unknown, "Domain fails reputation check"));
-            },
+                return Err(Error::BadRequest(
+                    ErrorKind::Unknown,
+                    "Domain fails reputation check",
+                ));
+            }
         }
     }
 
@@ -239,7 +246,10 @@ async fn request_url_preview(url: &Url) -> Result<UrlPreviewData> {
         }
     };
 
-    services().media.set_url_preview(url.as_str(), &data).await?;
+    services()
+        .media
+        .set_url_preview(url.as_str(), &data)
+        .await?;
 
     Ok(data)
 }
@@ -264,7 +274,7 @@ async fn get_url_preview(url: &Url) -> Result<UrlPreviewData> {
 
     match services().media.get_url_preview(url.as_str()).await {
         Some(preview) => Ok(preview),
-        None => request_url_preview(url).await
+        None => request_url_preview(url).await,
     }
 }
 
@@ -276,10 +286,10 @@ fn url_preview_allowed(url: &Url) -> bool {
     match preview_config.default {
         UrlPreviewPermission::Forbid => {
             preview_config.exceptions.iter().any(|ex| ex.matches(&host))
-        },
+        }
         UrlPreviewPermission::Allow => {
             !preview_config.exceptions.iter().any(|ex| ex.matches(&host))
-        },
+        }
     }
 }
 
@@ -291,21 +301,14 @@ pub async fn get_media_preview_route(
 ) -> Result<get_media_preview::v3::Response> {
     let url = match Url::parse(&body.url) {
         Err(_) => {
+            return Err(Error::BadRequest(ErrorKind::Unknown, "Not a valid URL"));
+        }
+        Ok(u) if u.scheme() != "http" && u.scheme() != "https" || u.host().is_none() => {
             return Err(Error::BadRequest(
-                ErrorKind::Unknown, 
-                "Not a valid URL",
-            ));
-        },
-        Ok(u)
-            if u.scheme() != "http" 
-            && u.scheme() != "https"
-            || u.host().is_none()
-        => {
-            return Err(Error::BadRequest(
-                ErrorKind::Unknown, 
+                ErrorKind::Unknown,
                 "Not a valid HTTP URL",
             ));
-        },
+        }
         Ok(url) => url,
     };
 
@@ -320,13 +323,11 @@ pub async fn get_media_preview_route(
         Ok(preview) => {
             let res = serde_json::value::to_raw_value(&preview).expect("Converting to JSON failed");
             Ok(get_media_preview::v3::Response::from_raw_value(res))
-        },
-        Err(_) => {
-            Err(Error::BadRequest(
-                ErrorKind::NotFound,
-                "Failed to find preview data",
-            ))
-        },
+        }
+        Err(_) => Err(Error::BadRequest(
+            ErrorKind::NotFound,
+            "Failed to find preview data",
+        )),
     }
 }
 

src/config/mod.rs

@@ -4,11 +4,11 @@ use std::{
     net::{IpAddr, Ipv4Addr},
 };
 
-use wild_carded_domain::WildCardedDomain;
 use ruma::{OwnedServerName, RoomVersionId};
 use serde::{de::IgnoredAny, Deserialize};
 use tracing::warn;
 use url::Url;
+use wild_carded_domain::WildCardedDomain;
 
 mod proxy;
 mod wild_carded_domain;

src/config/proxy.rs

@@ -1,8 +1,8 @@
 use reqwest::{Proxy, Url};
 use serde::Deserialize;
 
-use crate::Result;
 use super::wild_carded_domain::WildCardedDomain;
+use crate::Result;
 
 /// ## Examples:
 /// - No proxy (default):

src/database/key_value/media.rs

@@ -1,6 +1,10 @@
 use ruma::{api::client::error::ErrorKind, http_headers::ContentDisposition};
 
-use crate::{database::KeyValueDatabase, service::{self, media::UrlPreviewData}, utils, Error, Result};
+use crate::{
+    database::KeyValueDatabase,
+    service::{self, media::UrlPreviewData},
+    utils, Error, Result,
+};
 
 impl service::media::Data for KeyValueDatabase {
     fn create_file_metadata(
@@ -73,13 +77,16 @@ impl service::media::Data for KeyValueDatabase {
         self.url_previews.remove(url.as_bytes())
     }
 
-    fn set_url_preview(&self, url: &str, data: &UrlPreviewData, timestamp: std::time::Duration) -> Result<()> {
+    fn set_url_preview(
+        &self,
+        url: &str,
+        data: &UrlPreviewData,
+        timestamp: std::time::Duration,
+    ) -> Result<()> {
         let mut value = Vec::<u8>::new();
         value.extend_from_slice(&timestamp.as_secs().to_be_bytes());
         value.push(0xff);
-        value.extend_from_slice(
-            data.title.as_bytes(),
-        );
+        value.extend_from_slice(data.title.as_bytes());
         value.push(0xff);
         value.extend_from_slice(
             data.description
@@ -88,9 +95,7 @@ impl service::media::Data for KeyValueDatabase {
                 .unwrap_or_default(),
         );
         value.push(0xff);
-        value.extend_from_slice(
-            data.image.as_bytes(),
-        );
+        value.extend_from_slice(data.image.as_bytes());
         value.push(0xff);
         value.extend_from_slice(&data.image_size.unwrap_or(0).to_be_bytes());
         value.push(0xff);

src/service/globals/mod.rs

@@ -7,8 +7,7 @@ use ruma::{
 
 use crate::api::server_server::DestinationResponse;
 
-use crate::config::UrlPreviewConfig;
-use crate::{services, Config, Error, Result};
+use crate::{config::UrlPreviewConfig, services, Config, Error, Result};
 use futures_util::FutureExt;
 use hickory_resolver::TokioAsyncResolver;
 use hyper_util::client::legacy::connect::dns::{GaiResolver, Name as HyperName};

src/service/media/data.rs

@@ -20,10 +20,7 @@ pub trait Data: Send + Sync {
         height: u32,
     ) -> Result<(ContentDisposition, Option<String>, Vec<u8>)>;
 
-    fn remove_url_preview(
-        &self,
-        url: &str
-    ) -> Result<()>;
+    fn remove_url_preview(&self, url: &str) -> Result<()>;
 
     fn set_url_preview(
         &self,
@@ -32,8 +29,5 @@ pub trait Data: Send + Sync {
         timestamp: std::time::Duration,
     ) -> Result<()>;
 
-    fn get_url_preview(
-        &self,
-        url: &str
-    ) -> Option<super::UrlPreviewData>;
+    fn get_url_preview(&self, url: &str) -> Option<super::UrlPreviewData>;
 }

src/service/media/mod.rs

@@ -1,7 +1,7 @@
 mod data;
 use std::{
-    io::Cursor,
     collections::HashMap,
+    io::Cursor,
     sync::{Arc, RwLock},
     time::SystemTime,
 };
@@ -12,12 +12,12 @@ use ruma::http_headers::{ContentDisposition, ContentDispositionType};
 use crate::{services, Result};
 use image::imageops::FilterType;
 
+use serde::Serialize;
 use tokio::{
     fs::File,
     io::{AsyncReadExt, AsyncWriteExt, BufReader},
     sync::Mutex,
 };
-use serde::Serialize;
 
 pub struct FileMeta {
     pub content_disposition: ContentDisposition,
@@ -27,18 +27,14 @@ pub struct FileMeta {
 
 #[derive(Serialize, Default)]
 pub struct UrlPreviewData {
-    #[serde(
-        rename(serialize = "og:title")
-    )]
+    #[serde(rename(serialize = "og:title"))]
     pub title: String,
     #[serde(
         skip_serializing_if = "Option::is_none",
         rename(serialize = "og:description")
     )]
     pub description: Option<String>,
-    #[serde(
-        rename(serialize = "og:image")
-    )]
+    #[serde(rename(serialize = "og:image"))]
     pub image: String,
     #[serde(
         skip_serializing_if = "Option::is_none",