Add additional warnings to OMEMO purge key function

People continue to press the "don't press this" button. Maybe adding
some warnings indicating that this button will not fix their problems
will help...

2 files changed, 28 insertions, 2 deletions

diff --git a/src/main/java/eu/siacs/conversations/ui/XmppActivity.java b/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
index 36e82b2a..a9d2bc85 100644
--- a/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
@@ -786,8 +786,32 @@ public abstract class XmppActivity extends Activity {
 				new DialogInterface.OnClickListener() {
 					@Override
 					public void onClick(DialogInterface dialog, int which) {
-						account.getAxolotlService().purgeKey(fingerprint);
-						refreshUi();
+						Builder builder = new Builder(XmppActivity.this);
+						builder.setTitle(getString(R.string.purge_key));
+						builder.setIconAttribute(android.R.attr.alertDialogIcon);
+						builder.setMessage(getString(R.string.purge_key_warning));
+						builder.setNegativeButton(getString(R.string.cancel), null);
+						builder.setPositiveButton(getString(R.string.accept),
+								new DialogInterface.OnClickListener() {
+									@Override
+									public void onClick(DialogInterface dialog, int which) {
+										Builder builder = new Builder(XmppActivity.this);
+										builder.setTitle(getString(R.string.purge_key));
+										builder.setIconAttribute(android.R.attr.alertDialogIcon);
+										builder.setMessage(getString(R.string.purge_key_warning2));
+										builder.setNegativeButton(getString(R.string.cancel), null);
+										builder.setPositiveButton(getString(R.string.accept),
+												new DialogInterface.OnClickListener() {
+													@Override
+													public void onClick(DialogInterface dialog, int which) {
+														account.getAxolotlService().purgeKey(fingerprint);
+														refreshUi();
+													}
+												});
+										builder.create().show();
+									}
+								});
+						builder.create().show();
 					}
 				});
 		builder.create().show();
diff --git a/src/main/res/values/strings.xml b/src/main/res/values/strings.xml
index cdb5ae22..4eb518e5 100644
--- a/src/main/res/values/strings.xml
+++ b/src/main/res/values/strings.xml
@@ -408,6 +408,8 @@
 	<string name="purge_key">Purge key</string>
 	<string name="purge_key_desc_part1">Are you sure you want to purge this key?</string>
 	<string name="purge_key_desc_part2">It will irreversibly be considered compromised, and you can never build a session with it again.</string>
+	<string name="purge_key_warning">Did you press purge because you are trying to fix some problem? If so, please cancel. This functionality will NOT fix your problem.</string>
+	<string name="purge_key_warning2">Are you sure? You CAN NOT undo this. You have been warned.</string>
 	<string name="error_no_keys_to_trust">There are no usable keys available for this contact. If you have purged any of their keys, they need to generate new ones.</string>
 	<string name="error_trustkeys_title">Error</string>
 	<string name="fetching_history_from_server">Fetching history from server</string>