Protection against bookmarks with url=null in the database
Modified the database to only accept bookmarks with a url != null,
as a bookmark without url has no meaning and also makes the Browser
crash in a number of places.
Change-Id: I0a90c32a5c8846b96a231fb95b203aef4761f52d
diff --git a/src/com/android/browser/BrowserProvider.java b/src/com/android/browser/BrowserProvider.java
index bf1f9d5..a6ceb8b 100644
--- a/src/com/android/browser/BrowserProvider.java
+++ b/src/com/android/browser/BrowserProvider.java
@@ -159,7 +159,8 @@
// 20 -> 21 Added touch_icon
// 21 -> 22 Remove "clientid"
// 22 -> 23 Added user_entered
- private static final int DATABASE_VERSION = 23;
+ // 23 -> 24 Url not allowed to be null anymore.
+ private static final int DATABASE_VERSION = 24;
// Regular expression which matches http://, followed by some stuff, followed by
// optionally a trailing slash, all matched as separate groups.
@@ -239,7 +240,7 @@
db.execSQL("CREATE TABLE bookmarks (" +
"_id INTEGER PRIMARY KEY," +
"title TEXT," +
- "url TEXT," +
+ "url TEXT NOT NULL," +
"visits INTEGER," +
"date LONG," +
"created LONG," +
@@ -291,6 +292,27 @@
}
if (oldVersion < 23) {
db.execSQL("ALTER TABLE bookmarks ADD COLUMN user_entered INTEGER;");
+ }
+ if (oldVersion < 24) {
+ /* SQLite does not support ALTER COLUMN, hence the lengthy code. */
+ db.execSQL("DELETE FROM bookmarks WHERE url IS NULL;");
+ db.execSQL("ALTER TABLE bookmarks RENAME TO bookmarks_temp;");
+ db.execSQL("CREATE TABLE bookmarks (" +
+ "_id INTEGER PRIMARY KEY," +
+ "title TEXT," +
+ "url TEXT NOT NULL," +
+ "visits INTEGER," +
+ "date LONG," +
+ "created LONG," +
+ "description TEXT," +
+ "bookmark INTEGER," +
+ "favicon BLOB DEFAULT NULL," +
+ "thumbnail BLOB DEFAULT NULL," +
+ "touch_icon BLOB DEFAULT NULL," +
+ "user_entered INTEGER" +
+ ");");
+ db.execSQL("INSERT INTO bookmarks SELECT * FROM bookmarks_temp;");
+ db.execSQL("DROP TABLE bookmarks_temp;");
} else {
db.execSQL("DROP TABLE IF EXISTS bookmarks");
db.execSQL("DROP TABLE IF EXISTS searches");