Add issueable actor

app/models/concerns/issuable.rb

@@ -131,9 +131,10 @@ module Issuable
     users.concat(mentions.reduce([], :|)).uniq
   end
 
-  def to_hook_data
+  def to_hook_data(user)
     {
       object_kind: self.class.name.underscore,
+      user: user.hook_attrs,
       object_attributes: hook_attrs
     }
   end

app/models/user.rb

@@ -488,6 +488,14 @@ class User < ActiveRecord::Base
     end
   end
 
+  def hook_attrs
+    {
+      name: name,
+      username: username,
+      avatar_url: avatar_url
+    }
+  end
+
   def ensure_namespace_correct
     # Ensure user has namespace
     self.create_namespace!(path: self.username, name: self.username) unless self.namespace

app/services/issues/base_service.rb

@@ -8,7 +8,7 @@ module Issues
     end
 
     def execute_hooks(issue, action = 'open')
-      issue_data = issue.to_hook_data
+      issue_data = issue.to_hook_data(current_user)
       issue_url = Gitlab::UrlBuilder.new(:issue).build(issue.id)
       issue_data[:object_attributes].merge!(url: issue_url, action: action)
       issue.project.execute_hooks(issue_data, :issue_hooks)

app/services/merge_requests/base_merge_service.rb

@@ -13,7 +13,8 @@ module MergeRequests
 
     def execute_project_hooks(merge_request)
       if merge_request.project
-        merge_request.project.execute_hooks(merge_request.to_hook_data, :merge_request_hooks)
+        hook_data = merge_request.to_hook_data(current_user)
+        merge_request.project.execute_hooks(hook_data, :merge_request_hooks)
       end
     end
   end

app/services/merge_requests/base_service.rb

@@ -13,7 +13,8 @@ module MergeRequests
 
     def execute_hooks(merge_request)
       if merge_request.project
-        merge_request.project.execute_hooks(merge_request.to_hook_data, :merge_request_hooks)
+        hook_data = merge_request.to_hook_data(current_user)
+        merge_request.project.execute_hooks(hook_data, :merge_request_hooks)
       end
     end
 

doc/web_hooks/web_hooks.md

@@ -63,6 +63,11 @@ Triggered when a new issue is created or an existing issue was updated/closed/re
 ```json
 {
   "object_kind": "issue",
+  "user": {
+    "name": "Administrator",
+    "username": "root",
+    "avatar_url": "http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=40\u0026d=identicon"
+  },
   "object_attributes": {
     "id": 301,
     "title": "New API: create/update/delete file",
@@ -92,6 +97,11 @@ Triggered when a new merge request is created or an existing merge request was u
 ```json
 {
   "object_kind": "merge_request",
+  "user": {
+    "name": "Administrator",
+    "username": "root",
+    "avatar_url": "http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=40\u0026d=identicon"
+  },
   "object_attributes": {
     "id": 99,
     "target_branch": "master",