Add Android autofill chooser and app binding

androidsrc/org/julianfamily/keepassgo/AutofillCacheStore.java

@@ -10,6 +10,7 @@ import java.io.IOException;
 import java.io.InputStreamReader;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
+import java.util.Comparator;
 import java.util.List;
 import java.util.Locale;
 
@@ -20,18 +21,7 @@ final class AutofillCacheStore {
     }
 
     static Entry findBestMatch(Context context, String webDomain) {
-        File cacheFile = findCacheFile(context);
-        if (cacheFile == null) {
-            Log.i(TAG, "autofill cache file not found");
-            return null;
-        }
-        List<Entry> entries;
-        try {
-            entries = readEntries(cacheFile);
-        } catch (IOException err) {
-            Log.e(TAG, "failed to read autofill cache", err);
-            return null;
-        }
+        List<Entry> entries = readEntries(context);
         if (entries.isEmpty()) {
             return null;
         }
@@ -57,6 +47,50 @@ final class AutofillCacheStore {
         return chooseEntry(target, parentHost);
     }
 
+    static Entry findByID(Context context, String entryID) {
+        if (entryID == null || entryID.trim().isEmpty()) {
+            return null;
+        }
+        for (Entry entry : readEntries(context)) {
+            if (entryID.equals(entry.id)) {
+                return entry;
+            }
+        }
+        return null;
+    }
+
+    static List<Entry> chooserCandidates(Context context, String rawTarget) {
+        List<Entry> entries = readEntries(context);
+        if (entries.isEmpty()) {
+            return entries;
+        }
+        Entry direct = findBestMatch(context, rawTarget);
+        if (direct != null) {
+            List<Entry> resolved = new ArrayList<>();
+            resolved.add(direct);
+            return resolved;
+        }
+        entries.sort(Comparator
+                .comparing((Entry entry) -> entry.title.toLowerCase(Locale.US))
+                .thenComparing(entry -> String.join("/", entry.path).toLowerCase(Locale.US))
+                .thenComparing(entry -> entry.id));
+        return entries;
+    }
+
+    private static List<Entry> readEntries(Context context) {
+        File cacheFile = findCacheFile(context);
+        if (cacheFile == null) {
+            Log.i(TAG, "autofill cache file not found");
+            return new ArrayList<>();
+        }
+        try {
+            return readEntries(cacheFile);
+        } catch (IOException err) {
+            Log.e(TAG, "failed to read autofill cache", err);
+            return new ArrayList<>();
+        }
+    }
+
     private static File findCacheFile(Context context) {
         List<File> candidates = new ArrayList<>();
         File filesDir = context.getFilesDir();
@@ -103,16 +137,21 @@ final class AutofillCacheStore {
     }
 
     private static Entry readEntry(JsonReader reader) throws IOException {
+        String id = "";
         String title = "";
         String username = "";
         String password = "";
         String host = "";
         String url = "";
         List<String> targets = new ArrayList<>();
+        List<String> path = new ArrayList<>();
         reader.beginObject();
         while (reader.hasNext()) {
             String name = reader.nextName();
             switch (name) {
+                case "id":
+                    id = nextString(reader);
+                    break;
                 case "title":
                     title = nextString(reader);
                     break;
@@ -135,13 +174,20 @@ final class AutofillCacheStore {
                     }
                     reader.endArray();
                     break;
+                case "path":
+                    reader.beginArray();
+                    while (reader.hasNext()) {
+                        path.add(nextString(reader));
+                    }
+                    reader.endArray();
+                    break;
                 default:
                     reader.skipValue();
                     break;
             }
         }
         reader.endObject();
-        return new Entry(title, username, password, host, url, targets);
+        return new Entry(id, title, username, password, host, url, targets, path);
     }
 
     private static String nextString(JsonReader reader) throws IOException {
@@ -293,20 +339,24 @@ final class AutofillCacheStore {
     }
 
     static final class Entry {
+        final String id;
         final String title;
         final String username;
         final String password;
         final String host;
         final String url;
         final List<String> targets;
+        final List<String> path;
 
-        Entry(String title, String username, String password, String host, String url, List<String> targets) {
+        Entry(String id, String title, String username, String password, String host, String url, List<String> targets, List<String> path) {
+            this.id = id;
             this.title = title;
             this.username = username;
             this.password = password;
             this.host = host;
             this.url = url;
             this.targets = new ArrayList<>(targets);
+            this.path = new ArrayList<>(path);
         }
     }