add events for unblocking a profile

EVENTS.txt

@@ -647,3 +647,11 @@ StartBlockProfile: when we're about to block
 EndBlockProfile: when a block has succeeded
 - $user: the person doing the block
 - $profile: the person blocked, can be remote
+
+StartUnblockProfile: when we're about to unblock
+- $user: the person doing the unblock
+- $profile: the person getting unblocked, can be remote
+
+EndUnblockProfile: when an unblock has succeeded
+- $user: the person doing the unblock
+- $profile: the person unblocked, can be remote

actions/apiblockdestroy.php

@@ -97,9 +97,16 @@ class ApiBlockDestroyAction extends ApiAuthAction
             return;
         }
 
-        if (!$this->user->hasBlocked($this->other)
+        if ($this->user->hasBlocked($this->other)) {
-            || $this->user->unblock($this->other)
+            if (Event::handle('StartUnblockProfile', array($this->user, $this->other))) {
-        ) {
+                $result = $this->user->unblock($this->other);
+                if ($result) {
+                    Event::handle('EndUnblockProfile', array($this->user, $this->other));
+                }
+            }
+        }
+
+        if (!$this->user->hasBlocked($this->other)) {
             $this->initDocument($this->format);
             $this->showProfile($this->other, $this->format);
             $this->endDocument($this->format);

actions/unblock.php

@@ -72,7 +72,16 @@ class UnblockAction extends ProfileFormAction
     function handlePost()
     {
         $cur = common_current_user();
+
+        $result = false;
+
+        if (Event::handle('StartUnblockProfile', array($cur, $this->profile))) {
             $result = $cur->unblock($this->profile);
+            if ($result) {
+                Event::handle('EndUnblockProfile', array($cur, $this->profile));
+            }
+        }
+
         if (!$result) {
             $this->serverError(_('Error removing the block.'));
             return;