feat: add instagram session file

docker-compose.yml

@@ -7,9 +7,11 @@ services:
         BINARY_NAME: tg-relay-rs
     environment:
       TELOXIDE_TOKEN: ${TELOXIDE_TOKEN}
-      COOKIES_PATH: /app/yt-cookies.txt
+      COOKIES_PATH: ${YT_COOKIES_PATH:-/app/yt-cookies.txt}
+      SESSION_PATH: ${IG_SESSION_PATH:-/app/ig-session}
       RUST_LOG: ${RUST_LOG:-info}
     restart: unless-stopped
     volumes:
       - ./comments.txt:/app/comments.txt:ro
-      - /etc/secrets/yt-cookies.txt:/app/yt-cookies.txt:rw
+      - /etc/secrets/ig-session:${IG_SESSION_PATH:-/app/ig-session}:ro
+      - /etc/secrets/yt-cookies.txt:${YT_COOKIES_PATH:-/app/yt-cookies.txt}:rw

src/download.rs

@@ -8,6 +8,7 @@ use crate::{
 use futures::{StreamExt, stream};
 use std::{
     cmp::min,
+    env,
     ffi::OsStr,
     fs::{self, metadata},
     path::{Path, PathBuf},
@@ -109,7 +110,14 @@ async fn run_command_in_tempdir(cmd: &str, args: &[&str]) -> Result<DownloadResu
 ///
 /// - Propagates `run_command_in_tempdir` errors.
 pub async fn download_instaloader(shortcode: &str) -> Result<DownloadResult> {
+    fn get_env_var(name: &str) -> Result<String> {
+        env::var(name).map_err(|_| Error::env(name))
+    }
+    let session_file = get_env_var("IG_SESSION_PATH")?;
+
     let args = [
+        "--sessionfile",
+        &session_file,
         "--dirname-pattern=.",
         "--no-metadata-json",
         "--no-compress-json",
@@ -138,6 +146,8 @@ pub async fn download_ytdlp<P: AsRef<Path>>(
         "%(title)s.%(ext)s",
         "--no-warnings",
         "--quiet",
+        "--postprocessor-args",
+        "ffmpeg:-vf setsar=1 -c:v libx264 -crf 20 -preset veryfast -c:a aac -b:a 128k -movflags +faststart",
     ];
 
     let mut args = base_args

src/error.rs

@@ -26,8 +26,8 @@ pub enum Error {
     #[error("join error: {0}")]
     Join(#[from] tokio::task::JoinError),
 
-    #[error("rate limit exceeded")]
-    RateLimit,
+    #[error("environment variable `{0}` not found")]
+    EnvNotFound(String),
 
     #[error("other: {0}")]
     Other(String),
@@ -53,6 +53,11 @@ impl Error {
     pub fn validation_falied(text: impl Into<String>) -> Self {
         Self::ValidationFailed(text.into())
     }
+
+    #[inline]
+    pub fn env(text: impl Into<String>) -> Self {
+        Self::EnvNotFound(text.into())
+    }
 }
 
 pub type Result<T> = std::result::Result<T, Error>;