Don't rely on transparent decompression in list_aur

The current AUR package list code relies on the reqwest client library
to transparently decompress the packages.gz file. This only works if
the server provides the 'Content-Encoding: gzip" HTTP header, which
appears to have changed recently.

This patch explicitly decompresses the package list if no encoding
information is provided by the server.

Fixes: #1447

v2: blindly decompress with fall back on error, since reqwest strips
the content encoding header when it transparently decompresses.

Signed-off-by: Edwin Peer <[email protected]>

Author: espeer

Cargo.lock

@@ -57,6 +57,7 @@ regex = "1.11.1"
 signal-hook = "0.3.18"
 bitflags = "2.9.1"
 toml = { version = "0.8.23", features = ["preserve_order"] }
+flate2 = "1.1"
 
 [profile.release]
 codegen-units = 1

Cargo.toml

@@ -2,9 +2,10 @@ use crate::config::Config;
 use crate::pkgbuild::PkgbuildRepos;
 use crate::{exec, print_error};
 
-use std::io::Write;
+use std::io::{Read, Write};
 
 use anyhow::{anyhow, ensure, Context, Result};
+use flate2::read::GzDecoder;
 
 use raur::Raur;
 use tr::tr;
@@ -105,6 +106,11 @@ pub async fn list_aur(config: &Config) -> Result<()> {
     ensure!(success, "get {}: {}", url, resp.status());
 
     let data = resp.bytes().await?;
+    let mut extracted = Vec::new();
+    let data = match GzDecoder::new(&data[..]).read_to_end(&mut extracted) {
+        Ok(_) => extracted.into(),
+        Err(_) => data,
+    };
 
     let stdout = std::io::stdout();
     let mut stdout = stdout.lock();