Run Xtream imports in background to avoid long-held HTTP connections dropping silently

server.py

@@ -6,6 +6,7 @@
 from pymongo import MongoClient
 from aiohttp import web
 import socketio
+import asyncio
 import os, glob
 import time
 import json
@@ -714,6 +715,19 @@ async def import_xtream_codes(request):
     )
     save_playlist_document(playlist_doc)
 
+    asyncio.create_task(run_xtream_import(
+        id_playlist, import_key, collection_channels,
+        xtream_server, xtream_username, xtream_password, sidClient
+    ))
+
+    return web.json_response({'status': 'started', 'id_playlist': id_playlist})
+
+
+async def run_xtream_import(id_playlist, import_key, collection_channels,
+                             xtream_server, xtream_username, xtream_password, sidClient):
+    # Runs in the background: the HTTP request already returned, so imports that take
+    # minutes no longer hold a live connection open (which browsers/networks can silently drop).
+    # Completion is reported to the client over the existing progress_analysis socketio channel.
     try:
         await emit_analysis_progress({'percentage': 0.02}, sidClient)
 
@@ -781,15 +795,29 @@ async def import_xtream_codes(request):
         bulk_insert_channels(collection_channels, pending_channels, inserted_channels)
         number_channels = collection_channels.count_documents({"id_playlist": id_playlist})
         playlists.update_many({'id_playlist': id_playlist}, {"$set": {"num_channels": number_channels}})
-        await emit_analysis_progress({'percentage': 1}, sidClient)
+        await emit_analysis_progress({
-        return web.json_response({'num_channel': number_channels, 'id_playlist': id_playlist})
+            'percentage': 1,
+            'completed': True,
+            'num_channel': number_channels,
+            'id_playlist': id_playlist,
+        }, sidClient)
 
     except requests.RequestException as exc:
         logger.exception("Xtream import failed")
-        return web.json_response({'error': f'Xtream request failed: {exc}'}, status=502)
+        await emit_analysis_progress({
+            'percentage': 1,
+            'completed': True,
+            'error': f'Xtream request failed: {exc}',
+            'id_playlist': id_playlist,
+        }, sidClient)
     except Exception as exc:
         logger.exception("Xtream import failed")
-        return web.json_response({'error': f'Xtream import failed: {exc}'}, status=500)
+        await emit_analysis_progress({
+            'percentage': 1,
+            'completed': True,
+            'error': f'Xtream import failed: {exc}',
+            'id_playlist': id_playlist,
+        }, sidClient)
     finally:
         active_xtream_imports.pop(import_key, None)
 

static/index.html

@@ -1557,6 +1557,28 @@
             var displayPercent = Math.round(percentage * 100)
             $("#progress-bar").val(displayPercent);
             $("#progress-text").text(displayPercent + "%");
+
+            if (payload['completed']) {
+                if (payload['id_playlist']) {
+                    $('#id_playlist_to_action').val(payload['id_playlist']);
+                }
+                if (payload['error']) {
+                    $('#add_playlist_alert').html('<div class="alert alert-danger" role="alert">' + payload['error'] + '</div>');
+                } else {
+                    var num_channel = payload['num_channel'] || 0;
+                    if (num_channel > 0) {
+                        $('#add_playlist_alert').html('<div class="alert alert-success" role="alert">Imported items: ' + String(num_channel) + '</div>');
+                        update_list_playlist();
+                        $('#modal_add_playlist').modal('hide');
+                    } else {
+                        $('#add_playlist_alert').html('<div class="alert alert-danger" role="alert">No items returned by Xtream Codes.</div>');
+                    }
+                }
+                $("#progress-container").hide();
+                playlistImportInFlight = false;
+                playlistImportProgress = 0;
+                $('#upload-button').prop('disabled', false).text('Save');
+            }
         }
 
         
@@ -2850,22 +2872,12 @@
                 xtream_username: xtreamUsername,
                 xtream_password: xtreamPassword
             }).done(function(data){
-                if (data.status === 'already_running') {
+                // The import runs in the background on the server; completion is reported
+                // via the progress_analysis socket event, not this HTTP response.
                 $('#id_playlist_to_action').val(data.id_playlist || $('#id_playlist_to_action').val());
-                    $('#add_playlist_alert').html('<div class="alert alert-info" role="alert">' + (data.message || 'Xtream import already running...') + '</div>');
+                $('#add_playlist_alert').html('<div class="alert alert-info" role="alert">' + (data.message || 'Importing Xtream Codes playlist...') + '</div>');
                 playlistImportInFlight = true;
                 $('#upload-button').prop('disabled', true).text('Importing...');
-                    return;
-                }
-                var num_channel = data.num_channel || 0;
-                $('#id_playlist_to_action').val(data.id_playlist || $('#id_playlist_to_action').val());
-                if (num_channel > 0) {
-                    $('#add_playlist_alert').html('<div class="alert alert-success" role="alert">Imported items: ' + String(num_channel) + '</div>');
-                } else {
-                    $('#add_playlist_alert').html('<div class="alert alert-danger" role="alert">No items returned by Xtream Codes.</div>');
-                }
-                update_list_playlist();
-                $('#modal_add_playlist').modal('hide');
             }).fail(function(xhr){
                 var message = 'Xtream import failed.';
                 if (xhr.responseJSON && xhr.responseJSON.error) {