Add ./src/hook.rs

src/hook.rs

@@ -0,0 +1,147 @@
+use anyhow::{Context, Result};
+use std::io::Write;
+use std::path::Path;
+use tracing::{info, warn};
+
+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
+    
+    # Prüfe ob es ein AUR/Foreign Paket ist
+    if pacman -Si "$package" >/dev/null 2>&1; then
+        # Offizielles Repo-Paket, immer OK
+        continue
+    fi
+    
+    # AUR Paket gefunden - scanne es
+    if [[ -x "$AUR_SCANNER" ]]; then
+        RESULT=$($AUR_SCANNER scan "$package" --json 2>/devnull)
+        SCORE=$(echo "$RESULT" | grep -oP '"score":\s*\K\d+')
+        STATUS=$(echo "$RESULT" | grep -oP '"status":\s*"\K[^"]+')
+        
+        if [[ "$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
+
+# 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()
+}