From a199af295bc8cca5885917c5f89e535e573ac331 Mon Sep 17 00:00:00 2001
From: "Dr.Caduceus" <GitHub@thecaduceus.eu.org>
Date: Mon, 13 Nov 2023 11:55:37 +0530
Subject: [PATCH] Bump to v1.5

---
 bot/server/main.py | 47 +++++++++++++++++++++++-----------------------
 1 file changed, 23 insertions(+), 24 deletions(-)

diff --git a/bot/server/main.py b/bot/server/main.py
index 558a33a..b736778 100644
--- a/bot/server/main.py
+++ b/bot/server/main.py
@@ -1,9 +1,9 @@
 from quart import Blueprint, Response, request, render_template, redirect
-from math import ceil, floor
+from .error import abort
 from bot import TelegramBot
 from bot.config import Telegram, Server
+from math import ceil, floor
 from bot.modules.telegram import get_message, get_file_properties
-from .error import abort
 
 bp = Blueprint('main', __name__)
 
@@ -13,22 +13,22 @@ async def home():
 
 @bp.route('/dl/<int:file_id>')
 async def transmit_file(file_id):
-    file = await get_message(int(file_id)) or abort(404)
+    file = await get_message(message_id=int(file_id)) or abort(404)
     code = request.args.get('code') or abort(401)
     range_header = request.headers.get('Range', 0)
 
-    if code != file.caption:
+    if code != file.raw_text:
         abort(403)
 
-    file_name, file_size, mime_type = await get_file_properties(file)
-
+    file_name, file_size, mime_type = get_file_properties(file)
+    
     if range_header:
         from_bytes, until_bytes = range_header.replace("bytes=", "").split("-")
         from_bytes = int(from_bytes)
         until_bytes = int(until_bytes) if until_bytes else file_size - 1
     else:
-        from_bytes =  0
-        until_bytes = file_size -1
+        from_bytes = 0
+        until_bytes = file_size - 1
 
     if (until_bytes > file_size) or (from_bytes < 0) or (until_bytes < from_bytes):
         abort(416, 'Invalid range.')
@@ -36,26 +36,24 @@ async def transmit_file(file_id):
     chunk_size = 1024 * 1024
     until_bytes = min(until_bytes, file_size - 1)
 
-    offset = from_bytes // chunk_size
-    first_part_cut = from_bytes - (from_bytes - (from_bytes % chunk_size))
+    offset = from_bytes - (from_bytes % chunk_size)
+    first_part_cut = from_bytes - offset
     last_part_cut = until_bytes % chunk_size + 1
 
     req_length = until_bytes - from_bytes + 1
-    part_count = ceil(until_bytes / chunk_size) - floor((from_bytes - (from_bytes % chunk_size)) / chunk_size)
+    part_count = ceil(until_bytes / chunk_size) - floor(offset / chunk_size)
+    
+    headers = {
+            "Content-Type": f"{mime_type}",
+            "Content-Range": f"bytes {from_bytes}-{until_bytes}/{file_size}",
+            "Content-Length": str(req_length),
+            "Content-Disposition": f'attachment; filename="{file_name}"',
+            "Accept-Ranges": "bytes",
+        }
 
-    disposition = 'inline' if 'video' in mime_type or 'audio' in mime_type or 'html' in mime_type else 'attachment'
-    headers={
-        'Content-Type': f'{mime_type}',
-        'Content-Range': f'bytes {from_bytes}-{until_bytes}/{file_size}',
-        'Content-Length': str(req_length),
-        'Content-Disposition': f'{disposition}; filename="{file_name}"',
-        'Accept-Ranges': 'bytes',
-    }
-
-    async def file_streamer():
+    async def file_generator():
         current_part = 1
-        async for chunk in TelegramBot.stream_media(file, offset = offset):
-
+        async for chunk in TelegramBot.iter_download(file, offset=offset, chunk_size=chunk_size, stride=chunk_size, file_size=file_size):
             if not chunk:
                 break
             elif part_count == 1:
@@ -66,12 +64,13 @@ async def transmit_file(file_id):
                 yield chunk[:last_part_cut]
             else:
                 yield chunk
+
             current_part += 1
 
             if current_part > part_count:
                 break
 
-    return Response(file_streamer(), headers=headers, status=206 if range_header else 200)
+    return Response(file_generator(), headers=headers, status=206 if range_header else 200)
 
 @bp.route('/stream/<int:file_id>')
 async def stream_file(file_id):