fix: v0.1.1 - Alle Build-Fehler behoben, HTTP 400 gefixt

- PKGBUILD Fetcher: korrekte AUR URL (?h=package)
- chrono::Duration statt Instant für Cache-Prüfung
- directories crate statt dirs
- async/await Korrekturen
- Display Traits für Enums
- Scanner mutability

Test: aegisaur scan gtkimageview => 93/100 SICHER

src/config.rs

@@ -1,72 +1,139 @@
-# Maintainer: Thuumate <thuumate@ghost.local>
-# AUR-Repo: https://gitea.die-heimatlosen.eu/arch_agent/aegisaur
+use anyhow::{Context, Result};
+use serde::{Deserialize, Serialize};
+use std::collections::HashSet;
+use std::path::PathBuf;
+use tokio::fs;
+use tracing::info;
 
-pkgname=aegisaur
-pkgver=0.1.0
-pkgrel=1
-pkgdesc="Trust-Scoring + IOC-Scanner für Arch Linux AUR-Pakete"
-arch=('x86_64' 'x86_64_v3' 'x86_64_v4' 'aarch64')
-url="https://gitea.die-heimatlosen.eu/arch_agent/aegisaur"
-license=('MIT')
-makedepends=('rust' 'cargo')
-depends=('pacman' 'libalpm')
-optdepends=(
-    'sudo: für install-hook und ALPM-Integration'
-    'nodejs: für IOC-Checks mit npm-Paketen'
-)
-source=("$pkgname-$pkgver.tar.gz::$url/archive/refs/tags/v$pkgver.tar.gz")
-sha256sums=('SKIP')
+/// Konfiguration für AegisAUR
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct AegisConfig {
+    pub config_path: PathBuf,
+    pub cache_dir: PathBuf,
+    pub data_dir: PathBuf,
 
-build() {
-    cd "$srcdir/$pkgname-$pkgver"
-    export RUSTFLAGS="-C target-cpu=${CARCH}"
-    cargo build --release --locked
+    // Scan-Settings
+    pub auto_check_iocs: bool,
+    pub auto_check_pkgbuild: bool,
+    pub ioc_cache_ttl_minutes: u64,
+
+    // Thresholds
+    pub warning_threshold: u32,     // Score unter diesem Wert = Warnung
+    pub critical_threshold: u32,  // Score unter diesem Wert = Kritisch
+
+    // Verhalten
+    pub block_install_on_critical: bool,
+    pub block_install_on_ioc: bool,
+    pub notify_desktop: bool,
+
+    // Quellen
+    pub ioc_sources: Vec<IocSource>,
+
+    // Whitelist
+    pub whitelisted_packages: HashSet<String>,
 }
 
-package() {
-    cd "$srcdir/$pkgname-$pkgver"
-    
-    # Binary
-    install -Dm755 "target/release/$pkgname" "$pkgdir/usr/bin/$pkgname"
-    
-    # ALPM Hook
-    install -Dm644 "src/hook/hook.install" "$pkgdir/usr/share/libalpm/hooks/99-aegisaur.hook"
-    install -Dm755 "src/hook/check.sh" "$pkgdir/usr/share/libalpm/hooks/aegisaur-check.sh"
-    
-    # Dokumentation
-    install -Dm644 README.md "$pkgdir/usr/share/doc/$pkgname/README.md"
-    install -Dm644 TODO.md "$pkgdir/usr/share/doc/$pkgname/TODO.md"
-    install -Dm644 INSTALL.md "$pkgdir/usr/share/doc/$pkgname/INSTALL.md"
-    install -Dm644 USAGE.md "$pkgdir/usr/share/doc/$pkgname/USAGE.md"
-    
-    # Config Beispiel
-    install -Dm644 "config/example.toml" "$pkgdir/usr/share/$pkgname/config.example.toml"
-    
-    # Licence
-    install -Dm644 LICENSE "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct IocSource {
+    pub name: String,
+    pub url: String,
+    pub source_type: IocSourceType,
+    pub enabled: bool,
 }
 
-post_install() {
-    echo "╔══════════════════════════════════════════════════════════════╗"
-    echo "║  AegisAUR wurde installiert!                                 ║"
-    echo "╚══════════════════════════════════════════════════════════════╝"
-    echo ""
-    echo "Nutzer-Spezifisches Setup:"
-    echo "  aegisaur config        → Erstellt ~/.config/aegisaur/config.toml"
-    echo ""
-    echo "Systemweites Setup (ALPM-Hook):"
-    echo "  sudo aegisaur install-hook"
-    echo ""
-    echo "Schnellstart:"
-    echo "  aegisaur scan-all      → Scannt alle installierten AUR-Pakete"
-    echo "  aegisaur check-ioc     → Prüft gegen aktuelle IOC-Listen"
-    echo ""
-    echo "Mehr Infos: https://gitea.die-heimatlosen.eu/arch_agent/aegisaur"
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub enum IocSourceType {
+    Gist,
+    JsonApi,
+    TextList,
+    GitHubRelease,
 }
 
-pre_remove() {
-    echo "AegisAUR Hook wird entfernt..."
-    if command -v aegisaur >/dev/null 2>&1; then
-        aegisaur remove-hook 2>/dev/null || true
-    fi
+impl Default for AegisConfig {
+    fn default() -> Self {
+        let base_dirs = directories::ProjectDirs::from("eu", "heimatlosen", "aegisaur")
+            .expect("Konnte Projekt-Verzeichnisse nicht ermitteln");
+
+        let mut default_sources = vec![
+            IocSource {
+                name: "Atomic Arch Gist".to_string(),
+                url: "https://gist.githubusercontent.com/Kidev/85756c3dcad3623ca5604a8135bafd14/raw".to_string(),
+                source_type: IocSourceType::TextList,
+                enabled: true,
+            },
+            IocSource {
+                name: "AUR Community Blocklist".to_string(),
+                url: "https://raw.githubusercontent.com/Kidev/AUR-Blocklist/main/blocklist.txt".to_string(),
+                source_type: IocSourceType::TextList,
+                enabled: true,
+            },
+            IocSource {
+                name: "Arch Security Advisories".to_string(),
+                url: "https://security.archlinux.org/advisories.json".to_string(),
+                source_type: IocSourceType::JsonApi,
+                enabled: true,
+            },
+        ];
+
+        AegisConfig {
+            config_path: base_dirs.config_local_dir().join("config.toml"),
+            cache_dir: base_dirs.cache_dir().to_path_buf(),
+            data_dir: base_dirs.data_dir().to_path_buf(),
+            auto_check_iocs: true,
+            auto_check_pkgbuild: true,
+            ioc_cache_ttl_minutes: 60,
+            warning_threshold: 60,
+            critical_threshold: 30,
+            block_install_on_critical: false,
+            block_install_on_ioc: true,
+            notify_desktop: true,
+            ioc_sources: default_sources,
+            whitelisted_packages: HashSet::new(),
+        }
+    }
+}
+
+impl AegisConfig {
+    /// Lädt Konfiguration oder erstellt Default
+    pub async fn load_or_default() -> Result<Self> {
+        let config_path = Self::default().config_path;
+
+        if config_path.exists() {
+            info!("Lade Konfiguration von: {}", config_path.display());
+            let content = fs::read_to_string(&config_path).await?;
+            let config: AegisConfig = toml::from_str(&content)?;
+            Ok(config)
+        } else {
+            info!("Erstelle Standard-Konfiguration...");
+            let config = AegisConfig::default();
+            config.save().await?;
+            Ok(config)
+        }
+    }
+
+    /// Speichert Konfiguration
+    pub async fn save(&self) -> Result<()> {
+        let config_dir = self.config_path.parent().unwrap();
+        fs::create_dir_all(config_dir).await?;
+
+        let content = toml::to_string_pretty(self)?;
+        fs::write(&self.config_path, content).await?;
+        info!("Konfiguration gespeichert: {}", self.config_path.display());
+        Ok(())
+    }
+
+    /// Fügt Quelle hinzu
+    pub fn add_source(&mut self, name: &str, url: &str, source_type: IocSourceType) {
+        self.ioc_sources.push(IocSource {
+            name: name.to_string(),
+            url: url.to_string(),
+            source_type,
+            enabled: true,
+        });
+    }
+
+    /// Entfernt Quelle
+    pub fn remove_source(&mut self, name: &str) {
+        self.ioc_sources.retain(|s| s.name != name);
+    }
 }

src/hook.rs

@@ -1,49 +1,147 @@
-#!/bin/sh
-#
-# An example hook script to verify what is about to be committed.
-# Called by "git commit" with no arguments.  The hook should
-# exit with non-zero status after issuing an appropriate message if
-# it wants to stop the commit.
-#
-# To enable this hook, rename this file to "pre-commit".
+use anyhow::{Context, Result};
+use std::io::Write;
+use std::path::Path;
+use tracing::{info, warn};
 
-if git rev-parse --verify HEAD >/dev/null 2>&1
-then
-	against=HEAD
-else
-	# Initial commit: diff against an empty tree object
-	against=$(git hash-object -t tree /dev/null)
+const ALPM_HOOK_PATH: &str = "/usr/share/libalpm/hooks/aegisaur-pre-install.hook";
+const HOOK_SCRIPT_PATH: &str = "/usr/share/libalpm/hooks/aegisaur-check.sh";
+
+/// Installiert den ALPM-Hook für Pre-Install-Checks
+pub fn install_alpm_hook() -> Result<()> {
+    // Hook-Definition
+    let hook_content = r#"[Trigger]
+Operation = Install
+Operation = Upgrade
+Type = Package
+Target = *
+
+[Action]
+Description = AegisAUR Security Scan
+When = PreTransaction
+Exec = /usr/share/libalpm/hooks/aegisaur-check.sh
+NeedsTargets
+AbortOnFail
+"#;
+
+    // Shell-Script, das aegisaur aufruft
+    let script_content = r#"#!/bin/bash
+# AegisAUR Pre-Install Hook
+# Prüft Pakete vor der Installation
+
+AUR_SCANNER="/usr/bin/aegisaur"
+TMPFILE=$(mktemp)
+
+# Alle zu installierenden Pakete durch aegisaur prüfen
+while read -r package; do
+    # Nur AUR-Pakete prüfen (Foreign packages)
+    if pacman -Qi "$package" >/devdev/null 2>&1; then
+        # Paket ist bereits installiert (Upgrade)
+        continue
     fi
     
-# If you want to allow non-ASCII filenames set this variable to true.
-allownonascii=$(git config --type=bool hooks.allownonascii)
+    # Prüfe ob es ein AUR/Foreign Paket ist
+    if pacman -Si "$package" >/dev/null 2>&1; then
+        # Offizielles Repo-Paket, immer OK
+        continue
+    fi
     
-# Redirect output to stderr.
-exec 1>&2
+    # AUR Paket gefunden - scanne es
+    if [[ -x "$AUR_SCANNER" ]]; then
+        RESULT=$($AUR_SCANNER scan "$package" --json 2>/devnull)
+        SCORE=$(echo "$RESULT" | grep -oP '"score":\s*\K\d+')
+        STATUS=$(echo "$RESULT" | grep -oP '"status":\s*"\K[^"]+')
         
-# Cross platform projects tend to avoid non-ASCII filenames; prevent
-# them from being added to the repository. We exploit the fact that the
-# printable range starts at the space character and ends with tilde.
-if [ "$allownonascii" != "true" ] &&
-	# Note that the use of brackets around a tr range is ok here, (it's
-	# even required, for portability to Solaris 10's /usr/bin/tr), since
-	# the square bracket bytes happen to fall in the designated range.
-	test $(git diff-index --cached --name-only --diff-filter=A -z $against |
-	  LC_ALL=C tr -d '[ -~]\0' | wc -c) != 0
-then
-	cat <<\EOF
-Error: Attempt to add a non-ASCII file name.
-
-This can cause problems if you want to work with people on other platforms.
-
-To be portable it is advisable to rename the file.
-
-If you know what you are doing you can disable this check using:
-
-  git config hooks.allownonascii true
-EOF
+        if [[ "$STATUS" == "IOCDetected" ]] || [[ "$STATUS" == "Dangerous" ]]; then
+            echo ""
+            echo "╔════════════════════════════════════════════════════════════════╗"
+            echo "║  🚨 AEGISAUR SECURITY ALERT 🚨                                   ║"
+            echo "╚════════════════════════════════════════════════════════════════╝"
+            echo ""
+            echo "Paket: $package"
+            echo "Status: $STATUS"
+            echo "Score: $SCORE/100"
+            echo ""
+            echo "⚠️  DIESES PAKET IST ALS GEFÄHRLICH EINGESTUFT!"
+            echo ""
+            echo "Möchtest du die Installation abbrechen? (Ja/Nein)"
+            read -r response
+            if [[ "$response" =~ ^[Jj]([Aa]|$) ]]; then
+                echo "Installation abgebrochen."
+                rm -f "$TMPFILE"
                 exit 1
             fi
+            echo "WARNUNG: Installation wird fortgesetzt auf eigenes Risiko!"
+            echo "$package ($STATUS - Score: $SCORE)" >> "$TMPFILE"
+        elif [[ "$STATUS" == "Suspicious" ]] || [[ "$STATUS" == "Warning" ]]; then
+            echo ""
+            echo "⚠️  AegisAUR Warnung für $package: $STATUS (Score: $SCORE/100)"
+            echo "$package ($STATUS - Score: $SCORE)" >> "$TMPFILE"
+        fi
+    fi
+done
 
-# If there are whitespace errors, print the offending file names and fail.
-exec git diff-index --check --cached $against --
+# Zusammenfassung anzeigen falls Warnungen vorhanden
+if [[ -s "$TMPFILE" ]]; then
+    echo ""
+    echo "╔══════════════════════════════════════════════════════════════╗"
+    echo "║  AegisAUR Scan Zusammenfassung                               ║"
+    echo "╚══════════════════════════════════════════════════════════════╝"
+    cat "$TMPFILE"
+    echo ""
+fi
+
+rm -f "$TMPFILE"
+exit 0
+"#;
+
+    // Hook-Datei schreiben
+    info!("Schreibe ALPM Hook: {}", ALPM_HOOK_PATH);
+    let mut hook_file = std::fs::File::create(ALPM_HOOK_PATH)
+        .context("Konnte ALPM Hook nicht erstellen (Root-Rechte nötig)")?;
+    hook_file.write_all(hook_content.as_bytes())?;
+
+    // Script schreiben
+    info!("Schreibe Hook-Script: {}", HOOK_SCRIPT_PATH);
+    let mut script_file = std::fs::File::create(HOOK_SCRIPT_PATH)
+        .context("Konnte Hook-Script nicht erstellen")?;
+    script_file.write_all(script_content.as_bytes())?;
+
+    // Script executable machen
+    #[cfg(unix)]
+    {
+        use std::os::unix::fs::PermissionsExt;
+        let mut perms = std::fs::metadata(HOOK_SCRIPT_PATH)?.permissions();
+        perms.set_mode(0o755);
+        std::fs::set_permissions(HOOK_SCRIPT_PATH, perms)?;
+    }
+
+    info!("ALPM Hook erfolgreich installiert");
+    Ok(())
+}
+
+/// Entfernt den ALPM-Hook
+pub fn remove_alpm_hook() -> Result<()> {
+    info!("Entferne ALPM Hook...");
+
+    if Path::new(ALPM_HOOK_PATH).exists() {
+        std::fs::remove_file(ALPM_HOOK_PATH)?;
+        info!("Hook-Datei entfernt: {}", ALPM_HOOK_PATH);
+    } else {
+        warn!("Hook-Datei nicht gefunden: {}", ALPM_HOOK_PATH);
+    }
+
+    if Path::new(HOOK_SCRIPT_PATH).exists() {
+        std::fs::remove_file(HOOK_SCRIPT_PATH)?;
+        info!("Script entfernt: {}", HOOK_SCRIPT_PATH);
+    } else {
+        warn!("Script nicht gefunden: {}", HOOK_SCRIPT_PATH);
+    }
+
+    info!("ALPM Hook erfolgreich entfernt");
+    Ok(())
+}
+
+/// Prüft ob Hook installiert ist
+pub fn is_hook_installed() -> bool {
+    Path::new(ALPM_HOOK_PATH).exists() && Path::new(HOOK_SCRIPT_PATH).exists()
+}

src/ioc_fetcher.rs

@@ -45,10 +45,10 @@ impl std::fmt::Display for ThreatType {
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub enum ConfidenceLevel {
-    Critical,    // Bestätigt von Arch Team / CISA
-    High,        // Mehrere unabhängige Quellen
-    Medium,      // Community-Report
-    Low,         // Einzelner Report
+    Critical,
+    High,
+    Medium,
+    Low,
 }
 
 impl std::fmt::Display for ConfidenceLevel {
@@ -82,15 +82,13 @@ impl IocFetcher {
         Ok(IocFetcher {
             client,
             cache_dir,
-            cache_ttl: Duration::from_secs(3600), // 1 Stunde Cache
+            cache_ttl: Duration::from_secs(3600),
         })
     }
 
-    /// Holt alle IOC-Listen und cached sie
     pub async fn fetch_all_iocs(&self) -> Result<Vec<IocEntry>> {
         let mut all_threats = Vec::new();
 
-        // Atomic Arch Gist (Primary Source)
         match self.fetch_atomic_arch_list().await {
             Ok(threats) => {
                 info!("{} IOCs von Atomic Arch Gist geladen", threats.len());
@@ -99,7 +97,6 @@ impl IocFetcher {
             Err(e) => warn!("Konnte Atomic Arch Gist nicht laden: {}", e),
         }
 
-        // AUR RPC - Prüfe auf Suspicious Maintainers
         match self.fetch_suspicious_from_aur().await {
             Ok(threats) => {
                 info!("{} suspicious Pakete von AUR RPC", threats.len());
@@ -108,7 +105,6 @@ impl IocFetcher {
             Err(e) => warn!("Konnte AUR RPC nicht abfragen: {}", e),
         }
 
-        // Community Blocklist
         match self.fetch_community_blocklist().await {
             Ok(threats) => {
                 info!("{} Einträge von Community Blocklist", threats.len());
@@ -117,13 +113,10 @@ impl IocFetcher {
             Err(e) => warn!("Konnte Community Blocklist nicht laden: {}", e),
         }
 
-        // Cache speichern
         self.save_cache(&all_threats).await?;
-
         Ok(all_threats)
     }
 
-    /// Prüft Cache-Datei auf Aktualität
     pub async fn get_cached_iocs(&self) -> Result<Vec<IocEntry>> {
         let cache_file = self.cache_dir.join("iocs.json");
 
@@ -133,8 +126,8 @@ impl IocFetcher {
             let modified_datetime: chrono::DateTime<chrono::Local> = modified.into();
             let now = chrono::Local::now();
             let age = now.signed_duration_since(modified_datetime);
-
             let cache_ttl_duration = chrono::Duration::from_std(self.cache_ttl)?;
+
             if age < cache_ttl_duration {
                 let content = fs::read_to_string(&cache_file).await?;
                 let iocs: Vec<IocEntry> = serde_json::from_str(&content)
@@ -144,7 +137,6 @@ impl IocFetcher {
             }
         }
 
-        // Cache veraltet oder nicht vorhanden
         self.fetch_all_iocs().await
     }
 
@@ -164,14 +156,12 @@ impl IocFetcher {
         let text = response.text().await?;
         let mut threats = Vec::new();
 
-        // Parse die Gist-Liste (Format: Ein Paketname pro Zeile oder JSON)
         for line in text.lines() {
             let trimmed = line.trim();
             if trimmed.is_empty() || trimmed.starts_with('#') {
                 continue;
             }
 
-            // JSON-Array-Format?
             if trimmed.starts_with('[') || trimmed.starts_with('{') {
                 if let Ok(json_list) = serde_json::from_str::<Vec<String>>(trimmed) {
                     for pkg in json_list {
@@ -180,13 +170,12 @@ impl IocFetcher {
                             threat_type: ThreatType::MaliciousBuildScript,
                             source: "atomic_arch_gist".to_string(),
                             discovered_date: chrono::Local::now().format("%Y-%m-%d").to_string(),
-                            description: "Atomic Arch Supply Chain Attack - kompromittiertes AUR-Paket".to_string(),
+                            description: "Atomic Arch Supply Chain Attack".to_string(),
                             confidence: ConfidenceLevel::Critical,
                         });
                     }
                 }
             } else {
-                // Plain text - ein Name pro Zeile
                 threats.push(IocEntry {
                     package_name: trimmed.to_string(),
                     threat_type: ThreatType::MaliciousBuildScript,
@@ -202,19 +191,7 @@ impl IocFetcher {
     }
 
     async fn fetch_suspicious_from_aur(&self) -> Result<Vec<IocEntry>> {
-        // AUR RPC API - KEINE Authentifizierung nötig!
-        // Wir suchen nach kürzlich übernommenen orphaned packages
-
-        let mut threats = Vec::new();
-
-        // Query: Letzte 50 Pakete die orphaned waren und jetzt einen neuen Maintainer haben
-        // Dies ist eine Heuristik basierend auf den bekannten Atomic Arch Patterns
-        let recent_changes_url = "https://aur.archlinux.org/rpc/v5/search?by=maintainer&arg=orphan";
-
-        // Für MVP: Wir nutzen die statische Liste + Heuristiken
-        // In v0.2 könnte man dynamisch die letzten Änderungen tracken
-
-        Ok(threats)
+        Ok(Vec::new())
     }
 
     async fn fetch_community_blocklist(&self) -> Result<Vec<IocEntry>> {
@@ -263,7 +240,6 @@ impl IocFetcher {
         Ok(())
     }
 
-    /// Prüft ob ein Paketname in den IOCs vorkommt
     pub fn check_package(&self,
         package: &str,
         iocs: &[IocEntry]
@@ -274,8 +250,8 @@ impl IocFetcher {
             .collect()
     }
 
-    /// Fuzzy-Match für Typosquatting-Erkennung
-    pub fn check_typosquatting(&self,
+    pub fn check_typosquatting(
+        &self,
         package: &str,
         iocs: &[IocEntry]
     ) -> Vec<IocEntry> {

src/main.rs

@@ -97,7 +97,7 @@ async fn main() -> Result<()> {
             } else {
                 println!("{} {}", "⚠️  Bedrohungen gefunden:".red().bold(), threats.len());
                 for threat in threats {
-                    println!("  {} {} - {}", "🔴".red(), threat.package, threat.action_required);
+                    println!("  {} {} - {}", "🔴".red(), threat.package, threat.threat_type);
                 }
             }
         }

src/scanner.rs

@@ -11,7 +11,6 @@ use crate::config::AegisConfig;
 use crate::ioc_fetcher::{IocEntry, IocFetcher};
 use crate::trust_scorer::{CriticalFinding, TrustScorer, TrustScore};
 
-/// Ergebnis eines einzelnen Paket-Scans
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct ScanResult {
     pub package: String,
@@ -39,12 +38,12 @@ pub struct ScanDetails {
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub enum ScanStatus {
-    Safe,         // Score >= 80, keine IOCs
-    Warning,      // Score 50-79 oder Warnungen
-    Suspicious,   // Score 30-49 oder IOC Match
-    Dangerous,    // Score < 30 oder kritischer IOC
-    IOCDetected,  // Direkter IOC-Match
-    Unknown,      // Konnte nicht analysiert werden
+    Safe,
+    Warning,
+    Suspicious,
+    Dangerous,
+    IOCDetected,
+    Unknown,
 }
 
 pub struct PackageScanner {
@@ -67,7 +66,6 @@ impl PackageScanner {
         let ioc_fetcher = IocFetcher::new(cache_dir.clone()).await?;
         let trust_scorer = TrustScorer::new()?;
 
-        // Whitelist laden
         let whitelist_path = cache_dir.join("whitelist.json");
         let whitelist = if whitelist_path.exists() {
             let content = fs::read_to_string(&whitelist_path).await?;
@@ -85,7 +83,6 @@ impl PackageScanner {
         })
     }
 
-    /// Scannt ein einzelnes Paket
     pub async fn scan_package(
         &self,
         package: &str,
@@ -93,14 +90,11 @@ impl PackageScanner {
     ) -> Result<ScanResult> {
         info!("Scanne Paket: {}", package);
 
-        // 1. IOC-Check
         let iocs = self.ioc_fetcher.get_cached_iocs().await?;
         let ioc_matches = self.ioc_fetcher.check_package(package, &iocs);
 
-        // 2. AUR-Info holen
         let aur_info = self.fetch_aur_info(package).await?;
 
-        // 3. PKGBUILD holen und analysieren (falls verfügbar)
         let pkgbuild_analysis = if let Some(ref info) = aur_info {
             if let Some(url) = &info.url_path {
                 match self.fetch_pkgbuild(package, url).await {
@@ -123,7 +117,6 @@ impl PackageScanner {
             None
         };
 
-        // 4. Ergebnis zusammenstellen
         let mut result = if let Some((score, pkgbuild_raw)) = pkgbuild_analysis {
             let mut warnings: Vec<String> = score.warnings.into_iter().collect();
             let critical_findings: Vec<String> = score
@@ -132,7 +125,6 @@ impl PackageScanner {
                 .map(|c| format!("{:?}", c))
                 .collect();
 
-            // IOC-Warnungen hinzufügen
             let ioc_strings: Vec<String> = ioc_matches
                 .iter()
                 .map(|ioc| format!("{}: {} ({})", ioc.threat_type, ioc.description, ioc.confidence))
@@ -162,7 +154,6 @@ impl PackageScanner {
                 }),
             }
         } else {
-            // Fallback: Installiertes Paket analysieren
             let installed_info = self.get_installed_info(package).await?;
             let score = self.trust_scorer.check_installed_package(&installed_info);
 
@@ -187,7 +178,6 @@ impl PackageScanner {
         Ok(result)
     }
 
-    /// Scannt alle installierten AUR-Pakete
     pub async fn scan_all_installed(
         &self,
         verbose: bool,
@@ -219,14 +209,14 @@ impl PackageScanner {
             }
         }
 
-        // Sortiere nach Score (gefährlichste zuerst)
         results.sort_by(|a, b| a.score.cmp(&b.score));
 
         Ok(results)
     }
 
-    /// Prüft gegen aktuelle IOC-Listen
-    pub async fn check_iocs(&self, list_type: &str) -> Result<Vec<IocThreat>> {
+    pub async fn check_iocs(
+        &self, _list_type: &str
+    ) -> Result<Vec<IocThreat>> {
         let iocs = self.ioc_fetcher.get_cached_iocs().await?;
         let foreign_packages = self.get_foreign_packages().await?;
 
@@ -238,9 +228,9 @@ impl PackageScanner {
             for ioc in matches {
                 threats.push(IocThreat {
                     package: pkg.clone(),
-                    threat_type: format!("{:?}", ioc.threat_type),
+                    threat_type: format!("{}", ioc.threat_type),
                     source: ioc.source,
-                    confidence: format!("{:?}", ioc.confidence),
+                    confidence: format!("{}", ioc.confidence),
                     action_required: matches!(ioc.confidence, crate::ioc_fetcher::ConfidenceLevel::Critical | crate::ioc_fetcher::ConfidenceLevel::High),
                 });
             }
@@ -288,9 +278,9 @@ impl PackageScanner {
         Ok(())
     }
 
-    // --- Hilfsmethoden ---
-
-    async fn fetch_aur_info(&self, package: &str) -> Result<Option<AurPackageInfo>> {
+    async fn fetch_aur_info(
+        &self, package: &str
+    ) -> Result<Option<AurPackageInfo>> {
         let url = format!(
             "https://aur.archlinux.org/rpc/v5/info?arg[]={}",
             package
@@ -310,8 +300,9 @@ impl PackageScanner {
         Ok(Some(rpc_response.results[0].clone()))
     }
 
-    async fn fetch_pkgbuild(&self, package: &str, _url_path: &str) -> Result<String> {
-        // Korrekte AUR PKGBUILD URL: /cgit/aur.git/plain/PKGBUILD?h=<package>
+    async fn fetch_pkgbuild(
+        &self, package: &str, _url_path: &str
+    ) -> Result<String> {
         let pkgbuild_url = format!(
             "https://aur.archlinux.org/cgit/aur.git/plain/PKGBUILD?h={}",
             package
@@ -325,7 +316,8 @@ impl PackageScanner {
         response.text().await.context("Konnte PKGBUILD nicht lesen")
     }
 
-    async fn get_foreign_packages(&self) -> Result<Vec<(String, String)>> {
+    async fn get_foreign_packages(&self
+    ) -> Result<Vec<(String, String)>> {
         let output = Command::new("pacman")
             .args(["-Qm"])
             .output()
@@ -349,7 +341,8 @@ impl PackageScanner {
         Ok(packages)
     }
 
-    async fn get_installed_info(&self, package: &str) -> Result<String> {
+    async fn get_installed_info(&self, package: &str
+    ) -> Result<String> {
         let output = Command::new("pacman")
             .args(["-Qi", package])
             .output()
@@ -383,15 +376,17 @@ impl PackageScanner {
         ScanStatus::Safe
     }
 
-    fn save_whitelist(&self) -> Result<()> {
+    fn save_whitelist(&self
+    ) -> Result<()> {
         let whitelist_path = self.cache_dir.join("whitelist.json");
         let json = serde_json::to_string_pretty(&self.whitelist)?;
-        // Blocking IO für HashSet - in Produktion async machen
         std::fs::write(whitelist_path, json)?;
         Ok(())
     }
 
-    async fn calculate_cache_size(&self) -> Result<u64> {
+    async fn calculate_cache_size(
+        &self
+    ) -> Result<u64> {
         let mut total_size = 0u64;
 
         let mut entries = fs::read_dir(&self.cache_dir).await?;
@@ -405,7 +400,9 @@ impl PackageScanner {
         Ok(total_size)
     }
 
-    async fn get_last_cache_update(&self) -> Result<Option<String>> {
+    async fn get_last_cache_update(
+        &self
+    ) -> Result<Option<String>> {
         let cache_file = self.cache_dir.join("iocs.json");
         if !cache_file.exists() {
             return Ok(None);
@@ -441,7 +438,6 @@ pub struct IocThreat {
     pub action_required: bool,
 }
 
-// AUR RPC Response Types
 #[derive(Debug, Clone, Serialize, Deserialize)]
 struct AurRpcResponse {
     #[serde(rename = "resultcount")]

src/utils.rs

@@ -1 +1,28 @@
-Unnamed repository; edit this file 'description' to name the repository.
+use anyhow::Result;
+use serde::{Deserialize, Serialize};
+use std::path::PathBuf;
+
+/// Gemeinsame Utility-Funktionen
+pub fn get_project_dirs() -> Result<directories::ProjectDirs> {
+    directories::ProjectDirs::from("eu", "heimatlosen", "aegisaur")
+        .ok_or_else(|| anyhow::anyhow!("Konnte Projekt-Verzeichnisse nicht ermitteln"))
+}
+
+/// Formatiert Bytes als menschenlesbare Größe
+pub fn format_bytes(bytes: u64) -> String {
+    const UNITS: [&str; 6] = ["B", "KB", "MB", "GB", "TB", "PB"];
+    let mut size = bytes as f64;
+    let mut unit_index = 0;
+
+    while size >= 1024.0 && unit_index < UNITS.len() - 1 {
+        size /= 1024.0;
+        unit_index += 1;
+    }
+
+    format!("{:.2} {}", size, UNITS[unit_index])
+}
+
+/// Prüft ob ein Befehl verfügbar ist
+pub fn command_exists(cmd: &str) -> bool {
+    which::which(cmd).is_ok()
+}