From c328887e823c0c6c03083ffb345691d175e1bd20 Mon Sep 17 00:00:00 2001
From: Narasimha-sc <166327228+Narasimha-sc@users.noreply.github.com>
Date: Mon, 20 Jul 2026 16:29:02 +0000
Subject: [PATCH] multiplatform: trim pasted migration link before reading its
 network config

MigrateToDevice.checkUserLink gated on link.trim() and stored link.trim() in
every MigrationToState payload, but passed the raw, untrimmed link to
MigrationFileLinkData.readFromLink. A migration link pasted (or scanned) with
leading whitespace therefore passed the gate, then failed the "/_download info"
parse in the core, so readFromLink returned null and the link's network
configuration was silently dropped: the onion screen was skipped and migration
proceeded with the device's own host modes instead of the link's.

Compute the trimmed link once and use it throughout, so classification and
consumption see the same string.
---
 .../simplex/common/views/migration/MigrateToDevice.kt | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/migration/MigrateToDevice.kt b/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/migration/MigrateToDevice.kt
index f92a5e0ce4..6887f89999 100644
--- a/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/migration/MigrateToDevice.kt
+++ b/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/migration/MigrateToDevice.kt
@@ -524,17 +524,18 @@ private fun ProgressView() {
 }
 
 private suspend fun MutableState<MigrationToState?>.checkUserLink(link: String): Boolean {
-  return if (strHasSimplexFileLink(link.trim())) {
-    val data = MigrationFileLinkData.readFromLink(link)
+  val trimmed = link.trim()
+  return if (strHasSimplexFileLink(trimmed)) {
+    val data = MigrationFileLinkData.readFromLink(trimmed)
     val hasProxyConfigured = data?.networkConfig?.hasProxyConfigured() ?: false
     val networkConfig = data?.networkConfig?.transformToPlatformSupported()
     // If any of iOS or Android had onion enabled, show onion screen
     if (hasProxyConfigured && networkConfig?.hostMode != null && networkConfig.requiredHostMode != null) {
-      state = MigrationToState.Onion(link.trim(), networkConfig.legacySocksProxy, networkConfig.networkProxy, networkConfig.hostMode, networkConfig.requiredHostMode)
-      MigrationToDeviceState.save(MigrationToDeviceState.Onion(link.trim(), networkConfig.legacySocksProxy, networkConfig.networkProxy, networkConfig.hostMode, networkConfig.requiredHostMode))
+      state = MigrationToState.Onion(trimmed, networkConfig.legacySocksProxy, networkConfig.networkProxy, networkConfig.hostMode, networkConfig.requiredHostMode)
+      MigrationToDeviceState.save(MigrationToDeviceState.Onion(trimmed, networkConfig.legacySocksProxy, networkConfig.networkProxy, networkConfig.hostMode, networkConfig.requiredHostMode))
     } else {
       val current = getNetCfg()
-      state = MigrationToState.DatabaseInit(link.trim(), current.copy(
+      state = MigrationToState.DatabaseInit(trimmed, current.copy(
         socksProxy = null,
         hostMode = networkConfig?.hostMode ?: current.hostMode,
         requiredHostMode = networkConfig?.requiredHostMode ?: current.requiredHostMode