SearchResultEntry: detect file results not from Files provider

Some providers like FullTextSearch give file results without the fileId attribute.
This refactor allows for that, otherwise they would crash the UnifiedSearch UI.

Signed-off-by: Álvaro Brey Vilas <alvaro.brey@nextcloud.com>

src/main/java/com/owncloud/android/lib/common/SearchResultEntry.kt

@@ -27,7 +27,6 @@
 package com.owncloud.android.lib.common
 
 import android.net.UrlQuerySanitizer
-import java.net.URL
 
 /**
  * One search result entry of an unified search
@@ -42,8 +41,14 @@ data class SearchResultEntry(
     var attributes: Map<String, String> = emptyMap()
 ) {
 
+    companion object {
+        private const val PARAM_DIR = "dir"
+        private const val PARAM_FILE = "scrollto"
+        private const val DIR_ROOT = "/"
+    }
+
     val isFile: Boolean
-        get() = fileId() != null
+        get() = fileId() != null || listOf(PARAM_DIR, PARAM_FILE).all { resourceUrl.contains(it) }
 
     fun fileId(): String? {
         return attributes["fileId"]
@@ -54,17 +59,20 @@ data class SearchResultEntry(
     }
 
     private fun parseRemotePath(): String {
-        val sanitizer = UrlQuerySanitizer()
-        sanitizer.allowUnregisteredParamaters = true
-        sanitizer.unregisteredParameterValueSanitizer = UrlQuerySanitizer.getAllButNulLegal()
+        val sanitizer = UrlQuerySanitizer().apply {
+            allowUnregisteredParamaters = true
+            unregisteredParameterValueSanitizer = UrlQuerySanitizer.getAllButNulLegal()
+        }
+
         sanitizer.parseUrl(resourceUrl)
-        URL(resourceUrl).query?.let { sanitizer.parseQuery(it) }
-        val dir = if (sanitizer.getValue("dir") == "/") {
-            ""
-        } else {
-            sanitizer.getValue("dir")
+
+        val dirParam = sanitizer.getValue(PARAM_DIR)
+        val dir = when (dirParam) {
+            DIR_ROOT -> ""
+            else -> dirParam
         }
-        val file = sanitizer.getValue("scrollto")
+
+        val file = sanitizer.getValue(PARAM_FILE)
 
         return "$dir/$file"
     }