Upload 1111.txt

1111.txt

@@ -0,0 +1,52 @@
+import base64
+
+import uvicorn
+
+from fastapi.staticfiles import StaticFiles
+from fastapi import FastAPI
+from fastapi.responses import FileResponse
+
+app = FastAPI()
+
+
+def add_base32_padding(encoded_text):
+    padding_needed = 8 - (len(encoded_text) % 8)
+    return encoded_text + '=' * padding_needed
+
+
+def remove_f4_prefix(encoded_text):
+    prefix = "f410f"
+    if encoded_text.startswith(prefix):
+        return encoded_text[len(prefix):]
+    else:
+        return None
+
+
+@app.get("/", response_class=FileResponse)
+def read_root():
+    return "./static/index.html"
+
+
+@app.get("/convert_address_f4_0X")
+def convert_address_f4_0X(f4Address: str):
+    print(f4Address)
+    if f4Address is not None and len(f4Address) == 44:
+        encoded_text = remove_f4_prefix(f4Address)
+        encoded_text_with_padding = add_base32_padding(encoded_text.upper())
+        decoded_bytes = base64.b32decode(encoded_text_with_padding)
+
+        # Discard the last 4 bytes
+        decoded_bytes = decoded_bytes[:-4]
+
+        hex_string = "0x" + decoded_bytes.hex()
+
+        return {"fevm address": hex_string}
+    else:
+        return {"error": "Incorrect f4 address format"}
+
+
+
+app.mount("/", StaticFiles(directory="static"), name="static")
+
+if __name__ == "__main__":
+    uvicorn.run(app, host="0.0.0.0", port=8000)