feat: attach medias to tweets

Cargo.lock

@@ -1058,7 +1058,7 @@ checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
 
 [[package]]
 name = "oolatoocs"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
  "clap",
  "dissolve",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "oolatoocs"
-version = "0.1.0"
+version = "0.2.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
@@ -13,7 +13,7 @@ log = "^0.4"
 megalodon = "^0.11"
 oauth1-request = "^0.6"
 regex = "1.10.2"
-reqwest = { version = "0.11.22", features = ["json"] }
+reqwest = { version = "0.11.22", features = ["json", "stream", "multipart"] }
 rusqlite = "^0.27"
 serde = { version = "^1.0", features = ["derive"] }
 tokio = { version = "^1.33", features = ["rt-multi-thread", "macros"] }

src/lib.rs

@@ -36,9 +36,19 @@ pub async fn run(config: &Config) {
         let Ok(tweet_content) = strip_everything(&toot.content, &toot.tags) else {
             continue; // skip in case we can’t strip something
         };
+        let mut medias: Vec<u64> = vec![];
+
         // if we wanted to cut toot in half, now would be the right time to do so
-        // treating medias (nothing for now)
-        let tweet_id = post_tweet(&config.twitter, &tweet_content, &[])
+
+        for media in toot.media_attachments {
+            let Ok(id) = upload_media(&config.twitter, &media.url, &media.description).await else {
+                continue;
+            };
+
+            medias.push(id);
+        }
+
+        let tweet_id = post_tweet(&config.twitter, &tweet_content, &medias)
             .await
             .unwrap_or_else(|e| panic!("Cannot Tweet {}: {}", toot.id, e));
 

src/twitter.rs

@@ -1,6 +1,9 @@
 use crate::config::TwitterConfig;
 use oauth1_request::Token;
-use reqwest::Client;
+use reqwest::{
+    multipart::{Form, Part},
+    Body, Client,
+};
 use serde::{Deserialize, Serialize};
 use std::error::Error;
 
@@ -11,6 +14,12 @@ struct EmptyRequest {}
 #[derive(Serialize, Debug)]
 pub struct Tweet {
     pub text: String,
+    pub media: TweetMediasIds,
+}
+
+#[derive(Serialize, Debug)]
+pub struct TweetMediasIds {
+    pub media_ids: Vec<String>,
 }
 
 #[derive(Deserialize, Debug)]
@@ -23,6 +32,22 @@ pub struct TweetResponseData {
     pub id: String,
 }
 
+#[derive(Deserialize, Debug)]
+struct UploadMediaResponse {
+    media_id: u64,
+}
+
+#[derive(Serialize, Debug)]
+struct MediaMetadata {
+    media_id: u64,
+    alt_text: MediaMetadataAltText,
+}
+
+#[derive(Serialize, Debug)]
+struct MediaMetadataAltText {
+    text: String,
+}
+
 /// This function returns the OAuth1 Token object from TwitterConfig
 fn get_token(config: &TwitterConfig) -> Token {
     oauth1_request::Token::from_parts(
@@ -35,15 +60,68 @@ fn get_token(config: &TwitterConfig) -> Token {
 
 /// This function uploads media from Mastodon to Twitter and returns the media id from Twitter
 #[allow(dead_code)]
-pub async fn upload_media(_u: &str) -> Result<u64, Box<dyn Error>> {
-    Ok(0)
+pub async fn upload_media(
+    config: &TwitterConfig,
+    u: &str,
+    d: &Option<String>,
+) -> Result<u64, Box<dyn Error>> {
+    // initiate request parameters
+    let uri = "https://upload.twitter.com/1.1/media/upload.json";
+    let empty_request = EmptyRequest {}; // Why? Because fuck you, that’s why!
+    let token = get_token(config);
+
+    // retrieve the length, type and bytes stream from the given URL
+    let dl = reqwest::get(u).await?;
+    let content_length = dl
+        .content_length()
+        .ok_or(format!("Cannot get content length for {}", u))?;
+    let stream = dl.bytes_stream();
+
+    // upload the media
+    let client = Client::new();
+    let res: UploadMediaResponse = client
+        .post(uri)
+        .header(
+            "Authorization",
+            oauth1_request::post(uri, &empty_request, &token, oauth1_request::HMAC_SHA1),
+        )
+        .multipart(Form::new().part(
+            "media",
+            Part::stream_with_length(Body::wrap_stream(stream), content_length),
+        ))
+        .send()
+        .await?
+        .json()
+        .await?;
+
+    // update the metadata
+    if let Some(metadata) = d {
+        let uri = "https://upload.twitter.com/1.1/media/metadata/create.json";
+        let media_metadata = MediaMetadata {
+            media_id: res.media_id,
+            alt_text: MediaMetadataAltText {
+                text: metadata.to_string(),
+            },
+        };
+        let _metadata = client
+            .post(uri)
+            .header(
+                "Authorization",
+                oauth1_request::post(uri, &empty_request, &token, oauth1_request::HMAC_SHA1),
+            )
+            .json(&media_metadata)
+            .send()
+            .await?;
+    }
+
+    Ok(res.media_id)
 }
 
 /// This posts Tweets with all the associated medias
 pub async fn post_tweet(
     config: &TwitterConfig,
     content: &str,
-    _medias: &[u64],
+    medias: &[u64],
 ) -> Result<u64, Box<dyn Error>> {
     let uri = "https://api.twitter.com/2/tweets";
     let empty_request = EmptyRequest {}; // Why? Because fuck you, that’s why!
@@ -51,6 +129,9 @@ pub async fn post_tweet(
 
     let tweet = Tweet {
         text: content.to_string(),
+        media: TweetMediasIds {
+            media_ids: medias.iter().map(|m| m.to_string()).collect(),
+        },
     };
 
     let client = Client::new();