diff --git a/server/src/repo/mod.rs b/server/src/repo/mod.rs
index f060de1..6b17057 100644
--- a/server/src/repo/mod.rs
+++ b/server/src/repo/mod.rs
@@ -53,27 +53,9 @@ async fn post_package_archive(
             .await?;
     }
 
-    let mut builder = Builder::new();
-    builder
-        .support_format(libarchive::archive::ReadFormat::Tar)
-        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
-    builder
-        .support_filter(libarchive::archive::ReadFilter::All)
-        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
-    let mut ar = builder
-        .open_file(&path)
-        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
+    let pkg = tokio::task::spawn_blocking(move || package::Package::open(&path)).map_err(|_| StatusCode::INTERNAL_SERVER_ERROR).await?;
 
-    for entry in ar.entries() {
-        let mut entry = entry.map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
-
-        if entry.pathname() == ".PKGINFO" {
-            let mut buffer = String::new();
-            entry.read_to_string(&mut buffer);
-
-            println!("{}", buffer);
-        }
-    }
+    println!("{:?}", pkg);
 
     Ok(())
 }
diff --git a/server/src/repo/package.rs b/server/src/repo/package.rs
index c80b924..058c9b8 100644
--- a/server/src/repo/package.rs
+++ b/server/src/repo/package.rs
@@ -3,9 +3,11 @@ use libarchive::{Entry, ReadFilter};
 use std::fmt;
 use std::io::{self, BufRead, BufReader, Read};
 use std::path::{Path, PathBuf};
+use std::fs;
 
 const IGNORED_FILES: [&str; 5] = [".BUILDINFO", ".INSTALL", ".MTREE", ".PKGINFO", ".CHANGELOG"];
 
+#[derive(Debug)]
 pub struct Package {
     path: PathBuf,
     info: PkgInfo,
@@ -13,14 +15,15 @@ pub struct Package {
     compression: ReadFilter,
 }
 
+#[derive(Debug)]
 #[derive(Default)]
 pub struct PkgInfo {
     name: String,
     base: String,
     version: String,
     description: String,
-    size: i64,
-    csize: i64,
+    size: u64,
+    csize: u64,
     url: String,
     arch: String,
     build_date: i64,
@@ -62,7 +65,7 @@ impl PkgInfo {
         let line = line.as_ref();
 
         if !line.starts_with('#') {
-            if let Some((key, value)) = line.split_once(',').map(|(k, v)| (k.trim(), v.trim())) {
+            if let Some((key, value)) = line.split_once('=').map(|(k, v)| (k.trim(), v.trim())) {
                 match key {
                     "pkgname" => self.name = value.to_string(),
                     "pkgbase" => self.base = value.to_string(),
@@ -83,7 +86,7 @@ impl PkgInfo {
                     "pgpsigsize" => {
                         self.pgpsigsize = value
                             .parse()
-                            .map_err(|_| ParsePkgInfoError::InvalidBuildDate)?
+                            .map_err(|_| ParsePkgInfoError::InvalidPgpSigSize)?
                     }
                     "group" => self.groups.push(value.to_string()),
                     "license" => self.licenses.push(value.to_string()),
@@ -120,11 +123,19 @@ impl Package {
     pub fn open<P: AsRef<Path>>(path: P) -> io::Result<Self> {
         let mut builder = Builder::new();
         builder.support_format(libarchive::ReadFormat::Tar)?;
-        builder.support_filter(libarchive::ReadFilter::All)?;
 
-        let mut ar = builder.open_file(path)?;
+        // There are chosen kind of arbitrarily, most likely only zstd, gzip and xz will ever be
+        // used
+        builder.support_filter(libarchive::ReadFilter::Zstd)?;
+        builder.support_filter(libarchive::ReadFilter::Gzip)?;
+        builder.support_filter(libarchive::ReadFilter::Xz)?;
+        builder.support_filter(libarchive::ReadFilter::Bzip2)?;
+        builder.support_filter(libarchive::ReadFilter::Lzma)?;
 
-        let mut info: PkgInfo;
+        let mut ar = builder.open_file(path.as_ref())?;
+
+        let compression = ar.filter(0).ok_or(io::Error::new(io::ErrorKind::Other, "Unknown compression type."))?;
+        let mut info: Option<PkgInfo> = None;
         let mut files: Vec<PathBuf> = Vec::new();
 
         for entry in ar.entries() {
@@ -136,12 +147,21 @@ impl Package {
             }
 
             if path_name == ".PKGINFO" {
-                let size = entry.size();
-                info = PkgInfo::parse(entry)?;
-                info.size = size;
+                info = Some(PkgInfo::parse(entry)?);
             }
         }
 
-        todo!()
+        if let Some(mut info) = info {
+            info.csize = fs::metadata(path.as_ref())?.len();
+
+            Ok(Package{
+                path: path.as_ref().to_path_buf(),
+                info,
+                compression,
+                files
+            })
+        } else {
+            Err(io::Error::new(io::ErrorKind::Other, "No .PKGINFO file found."))
+        }
     }
 }