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-rw-r--r--src/main/java/de/pixart/messenger/utils/RichPreview.java18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/main/java/de/pixart/messenger/utils/RichPreview.java b/src/main/java/de/pixart/messenger/utils/RichPreview.java
index 63835228d..cdde6baaa 100644
--- a/src/main/java/de/pixart/messenger/utils/RichPreview.java
+++ b/src/main/java/de/pixart/messenger/utils/RichPreview.java
@@ -21,6 +21,9 @@ import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.URI;
import java.net.URISyntaxException;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.regex.Pattern;
import de.pixart.messenger.Config;
@@ -56,6 +59,14 @@ public class RichPreview {
FileInputStream fis = null;
ObjectInputStream is = null;
final File file = new File(context.getCacheDir(), RICH_LINK_METADATA + "/" + filename);
+ if(file.exists()) {
+ Calendar time = Calendar.getInstance();
+ time.add(Calendar.DAY_OF_YEAR, -7);
+ Date lastModified = new Date(file.lastModified());
+ if (lastModified.before(time.getTime())) {
+ file.delete();
+ }
+ }
try {
fis = new FileInputStream(file);
InputStreamReader isr = new InputStreamReader(fis);
@@ -296,4 +307,11 @@ public class RichPreview {
void onError(Exception e);
}
+
+ // Pattern for recognizing a URL, based off RFC 3986
+ public static final Pattern urlPattern = Pattern.compile(
+ "(?:^|[\\W])((ht|f)tp(s?):\\/\\/|www\\.)"
+ + "(([\\w\\-]+\\.){1,}?([\\w\\-.~]+\\/?)*"
+ + "[\\p{Alnum}.,%_=?&#\\-+()\\[\\]\\*$~@!:/{};']*)",
+ Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
} \ No newline at end of file