From 1d84eaf9c01ceb36ac56870d24bf2f71d5a61d46 Mon Sep 17 00:00:00 2001
From: OneWay <info@oneway.asia>
Date: Sun, 20 Sep 2026 23:14:54 +0800
Subject: [PATCH] fix: reject bare .dz source URLs and make extension
 validation case-insensitive

A bare .dz file (DictZip without the .dsl prefix) is treated by the
pipeline as an orphaned file and deleted right after the download, so
a .dz source URL passed validation but silently produced no
dictionary. Accept only DictZip-compressed DSL (.dsl.dz; .gz already
covers .dsl.gz) and compare extensions case-insensitively.
---
 .../example/research/core/domain/model/DictionarySource.kt   | 5 ++++-
 app/src/main/res/values-ru/strings.xml                       | 2 +-
 app/src/main/res/values/strings.xml                          | 2 +-
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/app/src/main/java/com/example/research/core/domain/model/DictionarySource.kt b/app/src/main/java/com/example/research/core/domain/model/DictionarySource.kt
index 7df0ce1..a48d9da 100644
--- a/app/src/main/java/com/example/research/core/domain/model/DictionarySource.kt
+++ b/app/src/main/java/com/example/research/core/domain/model/DictionarySource.kt
@@ -102,12 +102,15 @@ data class DictionarySource(
 
         fun validateTemplate(template: String): ValidationResult {
             val trimmed = template.trim()
+            val lowerTemplate = trimmed.lowercase()
             return when {
                 trimmed.isBlank() -> ValidationResult.Error(ValidationError.EMPTY)
                 trimmed.length > 2048 -> ValidationResult.Error(ValidationError.TOO_LONG)
                 !trimmed.startsWith("http://") && !trimmed.startsWith("https://") ->
                     ValidationResult.Error(ValidationError.INVALID_PROTOCOL)
-                !trimmed.endsWith(".gz") && !trimmed.endsWith(".dsl") && !trimmed.endsWith(".dz") ->
+                !lowerTemplate.endsWith(".gz") &&
+                    !lowerTemplate.endsWith(".dsl") &&
+                    !lowerTemplate.endsWith(".dsl.dz") ->
                     ValidationResult.Error(ValidationError.INVALID_EXTENSION)
                 !isValidUrlStructure(trimmed) ->
                     ValidationResult.Error(ValidationError.INVALID_URL_STRUCTURE)
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index 7ab2cce..bd511f0 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -76,7 +76,7 @@
     <string name="dictionary_source_duplicate_prefix">Этот словарь уже существует (одинаковый префикс)</string>
     <string name="dictionary_source_url_empty">URL не может быть пустым</string>
     <string name="dictionary_source_invalid_protocol">Должен начинаться с http:// или https://</string>
-    <string name="dictionary_source_invalid_extension">Должен заканчиваться на .gz, .dsl или .dz</string>
+    <string name="dictionary_source_invalid_extension">Должен заканчиваться на .gz, .dsl или .dsl.dz</string>
     <string name="dictionary_source_too_long">URL слишком длинный (максимум 2048 символов)</string>
     <string name="dictionary_source_invalid_url">Неверный формат URL</string>
     <string name="dictionary_source_suspicious_characters">URL содержит недопустимые символы</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 5fd1ba5..2a03b5a 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -74,7 +74,7 @@
     <string name="dictionary_source_duplicate_prefix">This dictionary already exists</string>
     <string name="dictionary_source_url_empty">URL cannot be empty</string>
     <string name="dictionary_source_invalid_protocol">Must start with http:// or https://</string>
-    <string name="dictionary_source_invalid_extension">Must end with .gz, .dsl, or .dz</string>
+    <string name="dictionary_source_invalid_extension">Must end with .gz, .dsl, or .dsl.dz</string>
     <string name="dictionary_source_too_long">URL is too long (max 2048 characters)</string>
     <string name="dictionary_source_invalid_url">Invalid URL format</string>
     <string name="dictionary_source_suspicious_characters">URL contains invalid characters</string>