pre uart exchange

2026-03-04 16:32:51 +01:00
parent b665cb5def
commit 4f3fbff258
46 changed files with 2820 additions and 3186 deletions
--- a/tool/core/cmd/get_file.py
+++ b/tool/core/cmd/get_file.py
@@ -0,0 +1,76 @@
+# tool/core/cmd/get_file.py
+import struct
+import zlib
+from pathlib import Path
+from core.utils import console, console_err
+from core.protocol import COMMANDS
+
+class get_file:
+    def __init__(self, bus):
+        self.bus = bus
+
+    def get(self, source_path: str, dest_path: str):
+        try:
+            p = Path(dest_path)
+            p.parent.mkdir(parents=True, exist_ok=True)
+            with open(p, 'wb') as f:
+                pass 
+        except Exception as e:
+            console_err.print(f"Fehler: Kann Zieldatei nicht anlegen: {e}")
+            return None
+
+        source_path_bytes = source_path.encode('utf-8')
+        payload = struct.pack('B', len(source_path_bytes)) + source_path_bytes
+        device_file_crc = None
+        try:
+            self.bus.send_request(COMMANDS['crc_32'], payload)
+            crc_resp = self.bus.receive_response(length=4)
+            if crc_resp and crc_resp.get('type') == 'response':
+                device_file_crc = struct.unpack('<I', crc_resp['data'])[0]
+        except Exception:
+            device_file_crc = None
+
+        self.bus.send_request(COMMANDS['get_file'], payload)
+        
+        stream_res = self.bus.receive_stream()  
+        
+        if not stream_res or stream_res.get('type') == 'error':
+            return None
+
+        file_data = stream_res['data']
+        remote_crc = stream_res['crc32']
+
+        if local_crc == remote_crc:
+            with open(p, 'wb') as f:
+                f.write(file_data)
+            success = True
+        else:
+            with open(p, 'wb') as f:
+                f.write(file_data)
+            success = False
+
+        return {
+            'success': success,
+            'source_path': source_path,
+            'dest_path': dest_path,
+            'crc32_remote': remote_crc,
+            'crc32_local': local_crc,
+            'crc32_device_file': device_file_crc,
+            'size': len(file_data)
+        }
+
+    def print(self, result):
+        if not result:
+            return
+
+        if result['success']:
+            console.print(f"✓ Datei [info]{result['source_path']}[/info] erfolgreich heruntergeladen.")
+            console.print(f"  • Größe:      [info]{result['size'] / 1024:.2f} KB[/info]")
+        else:
+            console_err.print(f"❌ CRC-FEHLER: Datei [error]{result['source_path']}[/error] wurde nicht korrekt empfangen!")
+        
+        console.print(f"  • Remote CRC: [info]{result['crc32_remote']:08X}[/info]")
+        console.print(f"  • Local CRC:  [info]{result['crc32_local']:08X}[/info]")
+        if result.get('crc32_device_file') is not None:
+            console.print(f"  • Device CRC: [info]{result['crc32_device_file']:08X}[/info]")
+        console.print(f"  • Zielpfad:   [info]{result['dest_path']}[/info]")