From 2f6e4ca60a5d08241cf4091a24087400f3e626fa 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 checked link.trim() and stored link.trim() in
every MigrationToState payload, but passed the raw link to
MigrationFileLinkData.readFromLink. A migration link pasted (or scanned)
with leading whitespace, or with trailing non-ASCII whitespace such as a no-
break space, passed the check but its "/_download info" request failed to
parse or returned no network settings, so readFromLink returned null and the
link's network settings were silently dropped: "Confirm network settings"
was skipped, the archive downloaded without the link's SOCKS proxy, and the
proxy stayed off after migration.

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 150be7ea6b..1b8e847b68 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