Merge branch '28093-snippet-and-issue-spam-check-on-edit' into 'master'

Spam check and reCAPTCHA improvements

Closes #28093

See merge request !9248

35 files changed, 935 insertions, 247 deletions

diff --git a/app/controllers/concerns/spammable_actions.rb b/app/controllers/concerns/spammable_actions.rb
index a6891149bfa..da225d8f1c7 100644
--- a/app/controllers/concerns/spammable_actions.rb
+++ b/app/controllers/concerns/spammable_actions.rb
@@ -17,13 +17,31 @@ module SpammableActions
 
   private
 
-  def recaptcha_params
-    return {} unless params[:recaptcha_verification] && Gitlab::Recaptcha.load_configurations! && verify_recaptcha
+  def recaptcha_check_with_fallback(&fallback)
+    if spammable.valid?
+      redirect_to spammable
+    elsif render_recaptcha?
+      if params[:recaptcha_verification]
+        flash[:alert] = 'There was an error with the reCAPTCHA. Please solve the reCAPTCHA again.'
+      end
+
+      render :verify
+    else
+      fallback.call
+    end
+  end
+
+  def spammable_params
+    default_params = { request: request }
+
+    recaptcha_check = params[:recaptcha_verification] &&
+      Gitlab::Recaptcha.load_configurations! &&
+      verify_recaptcha
+
+    return default_params unless recaptcha_check
 
-    {
-      recaptcha_verified: true,
-      spam_log_id: params[:spam_log_id]
-    }
+    { recaptcha_verified: true,
+      spam_log_id: params[:spam_log_id] }.merge(default_params)
   end
 
   def spammable
diff --git a/app/controllers/projects/issues_controller.rb b/app/controllers/projects/issues_controller.rb
index 744a4af1c51..6ef36771ac1 100644
--- a/app/controllers/projects/issues_controller.rb
+++ b/app/controllers/projects/issues_controller.rb
@@ -94,15 +94,15 @@ class Projects::IssuesController < Projects::ApplicationController
   end
 
   def create
-    extra_params = { request: request,
-                     merge_request_for_resolving_discussions: merge_request_for_resolving_discussions }
-    extra_params.merge!(recaptcha_params)
+    create_params = issue_params
+      .merge(merge_request_for_resolving_discussions: merge_request_for_resolving_discussions)
+      .merge(spammable_params)
 
-    @issue = Issues::CreateService.new(project, current_user, issue_params.merge(extra_params)).execute
+    @issue = Issues::CreateService.new(project, current_user, create_params).execute
 
     respond_to do |format|
       format.html do
-        html_response_create
+        recaptcha_check_with_fallback { render :new }
       end
       format.js do
         @link = @issue.attachment.url.to_js
@@ -111,7 +111,9 @@ class Projects::IssuesController < Projects::ApplicationController
   end
 
   def update
-    @issue = Issues::UpdateService.new(project, current_user, issue_params).execute(issue)
+    update_params = issue_params.merge(spammable_params)
+
+    @issue = Issues::UpdateService.new(project, current_user, update_params).execute(issue)
 
     if params[:move_to_project_id].to_i > 0
       new_project = Project.find(params[:move_to_project_id])
@@ -123,11 +125,7 @@ class Projects::IssuesController < Projects::ApplicationController
 
     respond_to do |format|
       format.html do
-        if @issue.valid?
-          redirect_to issue_path(@issue)
-        else
-          render :edit
-        end
+        recaptcha_check_with_fallback { render :edit }
       end
 
       format.json do
@@ -179,20 +177,6 @@ class Projects::IssuesController < Projects::ApplicationController
 
   protected
 
-  def html_response_create
-    if @issue.valid?
-      redirect_to issue_path(@issue)
-    elsif render_recaptcha?
-      if params[:recaptcha_verification]
-        flash[:alert] = 'There was an error with the reCAPTCHA. Please solve the reCAPTCHA again.'
-      end
-
-      render :verify
-    else
-      render :new
-    end
-  end
-
   def issue
     # The Sortable default scope causes performance issues when used with find_by
     @noteable = @issue ||= @project.issues.where(iid: params[:id]).reorder(nil).take || redirect_old
diff --git a/app/controllers/projects/snippets_controller.rb b/app/controllers/projects/snippets_controller.rb
index ef5d3d242eb..ea1a97b7cf0 100644
--- a/app/controllers/projects/snippets_controller.rb
+++ b/app/controllers/projects/snippets_controller.rb
@@ -38,24 +38,19 @@ class Projects::SnippetsController < Projects::ApplicationController
   end
 
   def create
-    create_params = snippet_params.merge(request: request)
+    create_params = snippet_params.merge(spammable_params)
+
     @snippet = CreateSnippetService.new(@project, current_user, create_params).execute
 
-    if @snippet.valid?
-      respond_with(@snippet,
-                   location: namespace_project_snippet_path(@project.namespace,
-                                                            @project, @snippet))
-    else
-      render :new
-    end
+    recaptcha_check_with_fallback { render :new }
   end
 
   def update
-    UpdateSnippetService.new(project, current_user, @snippet,
-                             snippet_params).execute
-    respond_with(@snippet,
-                 location: namespace_project_snippet_path(@project.namespace,
-                                                          @project, @snippet))
+    update_params = snippet_params.merge(spammable_params)
+
+    UpdateSnippetService.new(project, current_user, @snippet, update_params).execute
+
+    recaptcha_check_with_fallback { render :edit }
   end
 
   def show
diff --git a/app/controllers/snippets_controller.rb b/app/controllers/snippets_controller.rb
index 445898a2e9e..2d26718873f 100644
--- a/app/controllers/snippets_controller.rb
+++ b/app/controllers/snippets_controller.rb
@@ -42,16 +42,19 @@ class SnippetsController < ApplicationController
   end
 
   def create
-    create_params = snippet_params.merge(request: request)
+    create_params = snippet_params.merge(spammable_params)
+
     @snippet = CreateSnippetService.new(nil, current_user, create_params).execute
 
-    respond_with @snippet.becomes(Snippet)
+    recaptcha_check_with_fallback { render :new }
   end
 
   def update
-    UpdateSnippetService.new(nil, current_user, @snippet,
-                             snippet_params).execute
-    respond_with @snippet.becomes(Snippet)
+    update_params = snippet_params.merge(spammable_params)
+
+    UpdateSnippetService.new(nil, current_user, @snippet, update_params).execute
+
+    recaptcha_check_with_fallback { render :edit }
   end
 
   def show
diff --git a/app/models/concerns/spammable.rb b/app/models/concerns/spammable.rb
index 79adc77c9e4..107e6764ba2 100644
--- a/app/models/concerns/spammable.rb
+++ b/app/models/concerns/spammable.rb
@@ -13,7 +13,7 @@ module Spammable
     attr_accessor :spam
     attr_accessor :spam_log
 
-    after_validation :check_for_spam, on: :create
+    after_validation :check_for_spam, on: [:create, :update]
 
     cattr_accessor :spammable_attrs, instance_accessor: false do
       []
diff --git a/app/models/project_snippet.rb b/app/models/project_snippet.rb
index 9bb456eee24..25b5d777641 100644
--- a/app/models/project_snippet.rb
+++ b/app/models/project_snippet.rb
@@ -9,8 +9,4 @@ class ProjectSnippet < Snippet
 
   participant :author
   participant :notes_with_associations
-
-  def check_for_spam?
-    super && project.public?
-  end
 end
diff --git a/app/services/create_snippet_service.rb b/app/services/create_snippet_service.rb
index 14f5ba064ff..40286dbf3bf 100644
--- a/app/services/create_snippet_service.rb
+++ b/app/services/create_snippet_service.rb
@@ -1,7 +1,8 @@
 class CreateSnippetService < BaseService
+  include SpamCheckService
+
   def execute
-    request = params.delete(:request)
-    api = params.delete(:api)
+    filter_spam_check_params
 
     snippet = if project
                 project.snippets.build(params)
@@ -15,10 +16,11 @@ class CreateSnippetService < BaseService
     end
 
     snippet.author = current_user
-    snippet.spam = SpamService.new(snippet, request).check(api)
+
+    spam_check(snippet, current_user)
 
     if snippet.save
-      UserAgentDetailService.new(snippet, request).create
+      UserAgentDetailService.new(snippet, @request).create
     end
 
     snippet
diff --git a/app/services/issuable_base_service.rb b/app/services/issuable_base_service.rb
index 5f3ced49665..9500faf2862 100644
--- a/app/services/issuable_base_service.rb
+++ b/app/services/issuable_base_service.rb
@@ -191,14 +191,12 @@ class IssuableBaseService < BaseService
     # To be overridden by subclasses
   end
 
-  def after_update(issuable)
+  def before_update(issuable)
     # To be overridden by subclasses
   end
 
-  def update_issuable(issuable, attributes)
-    issuable.with_transaction_returning_status do
-      issuable.update(attributes.merge(updated_by: current_user))
-    end
+  def after_update(issuable)
+    # To be overridden by subclasses
   end
 
   def update(issuable)
@@ -212,16 +210,22 @@ class IssuableBaseService < BaseService
     label_ids = process_label_ids(params, existing_label_ids: issuable.label_ids)
     params[:label_ids] = label_ids if labels_changing?(issuable.label_ids, label_ids)
 
-    if params.present? && update_issuable(issuable, params)
-      # We do not touch as it will affect a update on updated_at field
-      ActiveRecord::Base.no_touching do
-        handle_common_system_notes(issuable, old_labels: old_labels)
-      end
+    if params.present?
+      issuable.assign_attributes(params.merge(updated_by: current_user))
+
+      before_update(issuable)
 
-      handle_changes(issuable, old_labels: old_labels, old_mentioned_users: old_mentioned_users)
-      after_update(issuable)
-      issuable.create_new_cross_references!(current_user)
-      execute_hooks(issuable, 'update')
+      if issuable.with_transaction_returning_status { issuable.save }
+        # We do not touch as it will affect a update on updated_at field
+        ActiveRecord::Base.no_touching do
+          handle_common_system_notes(issuable, old_labels: old_labels)
+        end
+
+        handle_changes(issuable, old_labels: old_labels, old_mentioned_users: old_mentioned_users)
+        after_update(issuable)
+        issuable.create_new_cross_references!(current_user)
+        execute_hooks(issuable, 'update')
+      end
     end
 
     issuable
diff --git a/app/services/issues/create_service.rb b/app/services/issues/create_service.rb
index 961605a1005..366b3572738 100644
--- a/app/services/issues/create_service.rb
+++ b/app/services/issues/create_service.rb
@@ -1,10 +1,9 @@
 module Issues
   class CreateService < Issues::BaseService
+    include SpamCheckService
+
     def execute
-      @request = params.delete(:request)
-      @api = params.delete(:api)
-      @recaptcha_verified = params.delete(:recaptcha_verified)
-      @spam_log_id = params.delete(:spam_log_id)
+      filter_spam_check_params
 
       issue_attributes = params.merge(merge_request_for_resolving_discussions: merge_request_for_resolving_discussions)
       @issue = BuildService.new(project, current_user, issue_attributes).execute
@@ -12,14 +11,8 @@ module Issues
       create(@issue)
     end
 
-    def before_create(issuable)
-      if @recaptcha_verified
-        spam_log = current_user.spam_logs.find_by(id: @spam_log_id, title: issuable.title)
-        spam_log&.update!(recaptcha_verified: true)
-      else
-        issuable.spam = spam_service.check(@api)
-        issuable.spam_log = spam_service.spam_log
-      end
+    def before_create(issue)
+      spam_check(issue, current_user)
     end
 
     def after_create(issuable)
@@ -42,10 +35,6 @@ module Issues
 
     private
 
-    def spam_service
-      @spam_service ||= SpamService.new(@issue, @request)
-    end
-
     def user_agent_detail_service
       UserAgentDetailService.new(@issue, @request)
     end
diff --git a/app/services/issues/update_service.rb b/app/services/issues/update_service.rb
index 78cbf94ec69..22e32b13259 100644
--- a/app/services/issues/update_service.rb
+++ b/app/services/issues/update_service.rb
@@ -1,9 +1,17 @@
 module Issues
   class UpdateService < Issues::BaseService
+    include SpamCheckService
+
     def execute(issue)
+      filter_spam_check_params
+
       update(issue)
     end
 
+    def before_update(issue)
+      spam_check(issue, current_user)
+    end
+
     def handle_changes(issue, old_labels: [], old_mentioned_users: [])
       if has_changes?(issue, old_labels: old_labels)
         todo_service.mark_pending_todos_as_done(issue, current_user)
diff --git a/app/services/spam_check_service.rb b/app/services/spam_check_service.rb
new file mode 100644
index 00000000000..023e0824e85
--- /dev/null
+++ b/app/services/spam_check_service.rb
@@ -0,0 +1,24 @@
+# SpamCheckService
+#
+# Provide helper methods for checking if a given spammable object has
+# potential spam data.
+#
+# Dependencies:
+# - params with :request
+#
+module SpamCheckService
+  def filter_spam_check_params
+    @request            = params.delete(:request)
+    @api                = params.delete(:api)
+    @recaptcha_verified = params.delete(:recaptcha_verified)
+    @spam_log_id        = params.delete(:spam_log_id)
+  end
+
+  def spam_check(spammable, user)
+    spam_service = SpamService.new(spammable, @request)
+
+    spam_service.when_recaptcha_verified(@recaptcha_verified, @api) do
+      user.spam_logs.find_by(id: @spam_log_id)&.update!(recaptcha_verified: true)
+    end
+  end
+end
diff --git a/app/services/spam_service.rb b/app/services/spam_service.rb
index 024a7c19d33..3e65b7d31a3 100644
--- a/app/services/spam_service.rb
+++ b/app/services/spam_service.rb
@@ -17,15 +17,6 @@ class SpamService
     end
   end
 
-  def check(api = false)
-    return false unless request && check_for_spam?
-
-    return false unless akismet.is_spam?
-
-    create_spam_log(api)
-    true
-  end
-
   def mark_as_spam!
     return false unless spammable.submittable_as_spam?
 
@@ -36,8 +27,30 @@ class SpamService
     end
   end
 
+  def when_recaptcha_verified(recaptcha_verified, api = false)
+    # In case it's a request which is already verified through recaptcha, yield
+    # block.
+    if recaptcha_verified
+      yield
+    else
+      # Otherwise, it goes to Akismet and check if it's a spam. If that's the
+      # case, it assigns spammable record as "spam" and create a SpamLog record.
+      spammable.spam = check(api)
+      spammable.spam_log = spam_log
+    end
+  end
+
   private
 
+  def check(api)
+    return false unless request && check_for_spam?
+
+    return false unless akismet.is_spam?
+
+    create_spam_log(api)
+    true
+  end
+
   def akismet
     @akismet ||= AkismetService.new(
       spammable_owner,
diff --git a/app/services/update_snippet_service.rb b/app/services/update_snippet_service.rb
index a6bb36821c3..358bca73aec 100644
--- a/app/services/update_snippet_service.rb
+++ b/app/services/update_snippet_service.rb
@@ -1,4 +1,6 @@
 class UpdateSnippetService < BaseService
+  include SpamCheckService
+
   attr_accessor :snippet
 
   def initialize(project, user, snippet, params)
@@ -9,7 +11,7 @@ class UpdateSnippetService < BaseService
   def execute
     # check that user is allowed to set specified visibility_level
     new_visibility = params[:visibility_level]
-    
+
     if new_visibility && new_visibility.to_i != snippet.visibility_level
       unless Gitlab::VisibilityLevel.allowed_for?(current_user, new_visibility)
         deny_visibility_level(snippet, new_visibility)
@@ -17,6 +19,10 @@ class UpdateSnippetService < BaseService
       end
     end
 
-    snippet.update_attributes(params)
+    filter_spam_check_params
+    snippet.assign_attributes(params)
+    spam_check(snippet, current_user)
+
+    snippet.save
   end
 end
diff --git a/app/views/layouts/_recaptcha_verification.html.haml b/app/views/layouts/_recaptcha_verification.html.haml
new file mode 100644
index 00000000000..77c77dc6754
--- /dev/null
+++ b/app/views/layouts/_recaptcha_verification.html.haml
@@ -0,0 +1,23 @@
+- humanized_resource_name = spammable.class.model_name.human.downcase
+- resource_name = spammable.class.model_name.singular
+
+%h3.page-title
+  Anti-spam verification
+%hr
+
+%p
+  #{"We detected potential spam in the #{humanized_resource_name}. Please solve the reCAPTCHA to proceed."}
+
+= form_for form do |f|
+  .recaptcha
+    - params[resource_name].each do |field, value|
+      = hidden_field(resource_name, field, value: value)
+    = hidden_field_tag(:spam_log_id, spammable.spam_log.id)
+    = hidden_field_tag(:recaptcha_verification, true)
+    = recaptcha_tags
+
+    -# Yields a block with given extra params.
+    = yield
+
+  .row-content-block.footer-block
+    = f.submit "Submit #{humanized_resource_name}", class: 'btn btn-create'
diff --git a/app/views/projects/issues/verify.html.haml b/app/views/projects/issues/verify.html.haml
index 1934b18c086..09aa401e44a 100644
--- a/app/views/projects/issues/verify.html.haml
+++ b/app/views/projects/issues/verify.html.haml
@@ -1,20 +1,4 @@
-- page_title "Anti-spam verification"
+- form = [@project.namespace.becomes(Namespace), @project, @issue]
 
-%h3.page-title
-  Anti-spam verification
-%hr
-
-%p
-  We detected potential spam in the issue description. Please verify that you are not a robot to submit the issue.
-
-= form_for [@project.namespace.becomes(Namespace), @project, @issue] do |f|
-  .recaptcha
-    - params[:issue].each do |field, value|
-      = hidden_field(:issue, field, value: value)
-    = hidden_field_tag(:merge_request_for_resolving_discussions, params[:merge_request_for_resolving_discussions])
-    = hidden_field_tag(:spam_log_id, @issue.spam_log.id)
-    = hidden_field_tag(:recaptcha_verification, true)
-    = recaptcha_tags
-
-  .row-content-block.footer-block
-    = f.submit "Submit #{@issue.class.model_name.human.downcase}", class: 'btn btn-create'
+= render layout: 'layouts/recaptcha_verification', locals: { spammable: @issue, form: form } do
+  = hidden_field_tag(:merge_request_for_resolving_discussions, params[:merge_request_for_resolving_discussions])
diff --git a/app/views/projects/snippets/verify.html.haml b/app/views/projects/snippets/verify.html.haml
new file mode 100644
index 00000000000..eb56f03b3f4
--- /dev/null
+++ b/app/views/projects/snippets/verify.html.haml
@@ -0,0 +1,4 @@
+- form = [@project.namespace.becomes(Namespace), @project, @snippet.becomes(Snippet)]
+
+= render 'layouts/recaptcha_verification', spammable: @snippet, form: form
+
diff --git a/app/views/snippets/verify.html.haml b/app/views/snippets/verify.html.haml
new file mode 100644
index 00000000000..cb623ccab57
--- /dev/null
+++ b/app/views/snippets/verify.html.haml
@@ -0,0 +1,4 @@
+- form = [@snippet.becomes(Snippet)]
+
+= render 'layouts/recaptcha_verification', spammable: @snippet, form: form
+
diff --git a/changelogs/unreleased/28093-snippet-and-issue-spam-check-on-edit.yml b/changelogs/unreleased/28093-snippet-and-issue-spam-check-on-edit.yml
new file mode 100644
index 00000000000..d70b5ef8fd5
--- /dev/null
+++ b/changelogs/unreleased/28093-snippet-and-issue-spam-check-on-edit.yml
@@ -0,0 +1,4 @@
+---
+title: Spam check and reCAPTCHA improvements
+merge_request:
+author:
diff --git a/lib/api/helpers.rb b/lib/api/helpers.rb
index ae62f1f9580..a1db2099693 100644
--- a/lib/api/helpers.rb
+++ b/lib/api/helpers.rb
@@ -215,6 +215,10 @@ module API
       end
     end
 
+    def render_spam_error!
+      render_api_error!({ error: 'Spam detected' }, 400)
+    end
+
     def render_api_error!(message, status)
       error!({ 'message' => message }, status, header)
     end
diff --git a/lib/api/issues.rb b/lib/api/issues.rb
index 2b946bfd349..6d30c5d81b1 100644
--- a/lib/api/issues.rb
+++ b/lib/api/issues.rb
@@ -169,9 +169,13 @@ module API
           params.delete(:updated_at)
         end
 
+        update_params = declared_params(include_missing: false).merge(request: request, api: true)
+
         issue = ::Issues::UpdateService.new(user_project,
                                             current_user,
-                                            declared_params(include_missing: false)).execute(issue)
+                                            update_params).execute(issue)
+
+        render_spam_error! if issue.spam?
 
         if issue.valid?
           present issue, with: Entities::Issue, current_user: current_user, project: user_project
diff --git a/lib/api/project_snippets.rb b/lib/api/project_snippets.rb
index dcc0c82ee27..2a1cce73f3f 100644
--- a/lib/api/project_snippets.rb
+++ b/lib/api/project_snippets.rb
@@ -63,6 +63,8 @@ module API
 
         snippet = CreateSnippetService.new(user_project, current_user, snippet_params).execute
 
+        render_spam_error! if snippet.spam?
+
         if snippet.persisted?
           present snippet, with: Entities::ProjectSnippet
         else
@@ -92,12 +94,16 @@ module API
         authorize! :update_project_snippet, snippet
 
         snippet_params = declared_params(include_missing: false)
+          .merge(request: request, api: true)
+
         snippet_params[:content] = snippet_params.delete(:code) if snippet_params[:code].present?
 
         UpdateSnippetService.new(user_project, current_user, snippet,
                                  snippet_params).execute
 
-        if snippet.persisted?
+        render_spam_error! if snippet.spam?
+
+        if snippet.valid?
           present snippet, with: Entities::ProjectSnippet
         else
           render_validation_error!(snippet)
diff --git a/lib/api/snippets.rb b/lib/api/snippets.rb
index eb9ece49e7f..ac03fbd2a3d 100644
--- a/lib/api/snippets.rb
+++ b/lib/api/snippets.rb
@@ -67,6 +67,8 @@ module API
         attrs = declared_params(include_missing: false).merge(request: request, api: true)
         snippet = CreateSnippetService.new(nil, current_user, attrs).execute
 
+        render_spam_error! if snippet.spam?
+
         if snippet.persisted?
           present snippet, with: Entities::PersonalSnippet
         else
@@ -93,9 +95,12 @@ module API
         return not_found!('Snippet') unless snippet
         authorize! :update_personal_snippet, snippet
 
-        attrs = declared_params(include_missing: false)
+        attrs = declared_params(include_missing: false).merge(request: request, api: true)
 
         UpdateSnippetService.new(nil, current_user, snippet, attrs).execute
+
+        render_spam_error! if snippet.spam?
+
         if snippet.persisted?
           present snippet, with: Entities::PersonalSnippet
         else
diff --git a/lib/api/v3/issues.rb b/lib/api/v3/issues.rb
index ba5b6fdbe52..d0af09f0e1e 100644
--- a/lib/api/v3/issues.rb
+++ b/lib/api/v3/issues.rb
@@ -149,9 +149,7 @@ module API
           issue = ::Issues::CreateService.new(user_project,
                                               current_user,
                                               issue_params.merge(request: request, api: true)).execute
-          if issue.spam?
-            render_api_error!({ error: 'Spam detected' }, 400)
-          end
+          render_spam_error! if issue.spam?
 
           if issue.valid?
             present issue, with: ::API::Entities::Issue, current_user: current_user, project: user_project
@@ -182,9 +180,13 @@ module API
             params.delete(:updated_at)
           end
 
+          update_params = declared_params(include_missing: false).merge(request: request, api: true)
+
           issue = ::Issues::UpdateService.new(user_project,
                                               current_user,
-                                              declared_params(include_missing: false)).execute(issue)
+                                              update_params).execute(issue)
+
+          render_spam_error! if issue.spam?
 
           if issue.valid?
             present issue, with: ::API::Entities::Issue, current_user: current_user, project: user_project
diff --git a/lib/api/v3/project_snippets.rb b/lib/api/v3/project_snippets.rb
index 9f95d4395fa..e03e941d30b 100644
--- a/lib/api/v3/project_snippets.rb
+++ b/lib/api/v3/project_snippets.rb
@@ -64,6 +64,8 @@ module API
 
           snippet = CreateSnippetService.new(user_project, current_user, snippet_params).execute
 
+          render_spam_error! if snippet.spam?
+
           if snippet.persisted?
             present snippet, with: ::API::V3::Entities::ProjectSnippet
           else
@@ -93,12 +95,16 @@ module API
           authorize! :update_project_snippet, snippet
 
           snippet_params = declared_params(include_missing: false)
+            .merge(request: request, api: true)
+
           snippet_params[:content] = snippet_params.delete(:code) if snippet_params[:code].present?
 
           UpdateSnippetService.new(user_project, current_user, snippet,
                                    snippet_params).execute
 
-          if snippet.persisted?
+          render_spam_error! if snippet.spam?
+
+          if snippet.valid?
             present snippet, with: ::API::V3::Entities::ProjectSnippet
           else
             render_validation_error!(snippet)
diff --git a/spec/controllers/projects/issues_controller_spec.rb b/spec/controllers/projects/issues_controller_spec.rb
index e576bf9ef79..7871b6a9e10 100644
--- a/spec/controllers/projects/issues_controller_spec.rb
+++ b/spec/controllers/projects/issues_controller_spec.rb
@@ -152,6 +152,113 @@ describe Projects::IssuesController do
         end
       end
 
+      context 'Akismet is enabled' do
+        let(:project) { create(:project_empty_repo, :public) }
+
+        before do
+          stub_application_setting(recaptcha_enabled: true)
+          allow_any_instance_of(SpamService).to receive(:check_for_spam?).and_return(true)
+        end
+
+        context 'when an issue is not identified as spam' do
+          before do
+            allow_any_instance_of(described_class).to receive(:verify_recaptcha).and_return(false)
+            allow_any_instance_of(AkismetService).to receive(:is_spam?).and_return(false)
+          end
+
+          it 'normally updates the issue' do
+            expect { update_issue(title: 'Foo') }.to change { issue.reload.title }.to('Foo')
+          end
+        end
+
+        context 'when an issue is identified as spam' do
+          before { allow_any_instance_of(AkismetService).to receive(:is_spam?).and_return(true) }
+
+          context 'when captcha is not verified' do
+            def update_spam_issue
+              update_issue(title: 'Spam Title', description: 'Spam lives here')
+            end
+
+            before { allow_any_instance_of(described_class).to receive(:verify_recaptcha).and_return(false) }
+
+            it 'rejects an issue recognized as a spam' do
+              expect { update_spam_issue }.not_to change{ issue.reload.title }
+            end
+
+            it 'rejects an issue recognized as a spam when recaptcha disabled' do
+              stub_application_setting(recaptcha_enabled: false)
+
+              expect { update_spam_issue }.not_to change{ issue.reload.title }
+            end
+
+            it 'creates a spam log' do
+              update_spam_issue
+
+              spam_logs = SpamLog.all
+
+              expect(spam_logs.count).to eq(1)
+              expect(spam_logs.first.title).to eq('Spam Title')
+              expect(spam_logs.first.recaptcha_verified).to be_falsey
+            end
+
+            it 'renders verify template' do
+              update_spam_issue
+
+              expect(response).to render_template(:verify)
+            end
+          end
+
+          context 'when captcha is verified' do
+            let(:spammy_title) { 'Whatever' }
+            let!(:spam_logs) { create_list(:spam_log, 2, user: user, title: spammy_title) }
+
+            def update_verified_issue
+              update_issue({ title: spammy_title },
+                           { spam_log_id: spam_logs.last.id,
+                             recaptcha_verification: true })
+            end
+
+            before do
+              allow_any_instance_of(described_class).to receive(:verify_recaptcha)
+                .and_return(true)
+            end
+
+            it 'redirect to issue page' do
+              update_verified_issue
+
+              expect(response).
+                to redirect_to(namespace_project_issue_path(project.namespace, project, issue))
+            end
+
+            it 'accepts an issue after recaptcha is verified' do
+              expect{ update_verified_issue }.to change{ issue.reload.title }.to(spammy_title)
+            end
+
+            it 'marks spam log as recaptcha_verified' do
+              expect { update_verified_issue }.to change { SpamLog.last.recaptcha_verified }.from(false).to(true)
+            end
+
+            it 'does not mark spam log as recaptcha_verified when it does not belong to current_user' do
+              spam_log = create(:spam_log)
+
+              expect { update_issue(spam_log_id: spam_log.id, recaptcha_verification: true) }.
+                not_to change { SpamLog.last.recaptcha_verified }
+            end
+          end
+        end
+      end
+
+      def update_issue(issue_params = {}, additional_params = {})
+        params = {
+          namespace_id: project.namespace.to_param,
+          project_id: project.to_param,
+          id: issue.iid,
+          issue: issue_params
+        }.merge(additional_params)
+
+        put :update, params
+      end
+
       def move_issue
         put :update,
           namespace_id: project.namespace.to_param,
@@ -384,7 +491,7 @@ describe Projects::IssuesController do
         allow_any_instance_of(SpamService).to receive(:check_for_spam?).and_return(true)
       end
 
-      context 'when an issue is not identified as a spam' do
+      context 'when an issue is not identified as spam' do
         before do
           allow_any_instance_of(described_class).to receive(:verify_recaptcha).and_return(false)
           allow_any_instance_of(AkismetService).to receive(:is_spam?).and_return(false)
@@ -395,7 +502,7 @@ describe Projects::IssuesController do
         end
       end
 
-      context 'when an issue is identified as a spam' do
+      context 'when an issue is identified as spam' do
         before { allow_any_instance_of(AkismetService).to receive(:is_spam?).and_return(true) }
 
         context 'when captcha is not verified' do
diff --git a/spec/controllers/projects/snippets_controller_spec.rb b/spec/controllers/projects/snippets_controller_spec.rb
index 77ee10a1e15..8bab094a79e 100644
--- a/spec/controllers/projects/snippets_controller_spec.rb
+++ b/spec/controllers/projects/snippets_controller_spec.rb
@@ -70,7 +70,7 @@ describe Projects::SnippetsController do
   end
 
   describe 'POST #create' do
-    def create_snippet(project, snippet_params = {})
+    def create_snippet(project, snippet_params = {}, additional_params = {})
       sign_in(user)
 
       project.add_developer(user)
@@ -79,7 +79,7 @@ describe Projects::SnippetsController do
         namespace_id: project.namespace.to_param,
         project_id: project.to_param,
         project_snippet: { title: 'Title', content: 'Content' }.merge(snippet_params)
-      }
+      }.merge(additional_params)
     end
 
     context 'when the snippet is spam' do
@@ -87,35 +87,179 @@ describe Projects::SnippetsController do
         allow_any_instance_of(AkismetService).to receive(:is_spam?).and_return(true)
       end
 
-      context 'when the project is private' do
-        let(:private_project) { create(:project_empty_repo, :private) }
+      context 'when the snippet is private' do
+        it 'creates the snippet' do
+          expect { create_snippet(project, visibility_level: Snippet::PRIVATE) }.
+            to change { Snippet.count }.by(1)
+        end
+      end
+
+      context 'when the snippet is public' do
+        it 'rejects the shippet' do
+          expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
+            not_to change { Snippet.count }
+          expect(response).to render_template(:new)
+        end
+
+        it 'creates a spam log' do
+          expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
+            to change { SpamLog.count }.by(1)
+        end
+
+        it 'renders :new with recaptcha disabled' do
+          stub_application_setting(recaptcha_enabled: false)
+
+          create_snippet(project, visibility_level: Snippet::PUBLIC)
+
+          expect(response).to render_template(:new)
+        end
 
-        context 'when the snippet is public' do
-          it 'creates the snippet' do
-            expect { create_snippet(private_project, visibility_level: Snippet::PUBLIC) }.
-              to change { Snippet.count }.by(1)
+        context 'recaptcha enabled' do
+          before do
+            stub_application_setting(recaptcha_enabled: true)
           end
+
+          it 'renders :verify with recaptcha enabled' do
+            create_snippet(project, visibility_level: Snippet::PUBLIC)
+
+            expect(response).to render_template(:verify)
+          end
+
+          it 'renders snippet page when recaptcha verified' do
+            spammy_title = 'Whatever'
+
+            spam_logs = create_list(:spam_log, 2, user: user, title: spammy_title)
+            create_snippet(project,
+                           { visibility_level: Snippet::PUBLIC },
+                           { spam_log_id: spam_logs.last.id,
+                             recaptcha_verification: true })
+
+            expect(response).to redirect_to(Snippet.last)
+          end
+        end
+      end
+    end
+  end
+
+  describe 'PUT #update' do
+    let(:project) { create :project, :public }
+    let(:snippet) { create :project_snippet, author: user, project: project, visibility_level: visibility_level }
+
+    def update_snippet(snippet_params = {}, additional_params = {})
+      sign_in(user)
+
+      project.add_developer(user)
+
+      put :update, {
+        namespace_id: project.namespace.to_param,
+        project_id: project.to_param,
+        id: snippet.id,
+        project_snippet: { title: 'Title', content: 'Content' }.merge(snippet_params)
+      }.merge(additional_params)
+
+      snippet.reload
+    end
+
+    context 'when the snippet is spam' do
+      before do
+        allow_any_instance_of(AkismetService).to receive(:is_spam?).and_return(true)
+      end
+
+      context 'when the snippet is private' do
+        let(:visibility_level) { Snippet::PRIVATE }
+
+        it 'updates the snippet' do
+          expect { update_snippet(title: 'Foo') }.
+            to change { snippet.reload.title }.to('Foo')
         end
       end
 
-      context 'when the project is public' do
-        context 'when the snippet is private' do
-          it 'creates the snippet' do
-            expect { create_snippet(project, visibility_level: Snippet::PRIVATE) }.
-              to change { Snippet.count }.by(1)
+      context 'when the snippet is public' do
+        let(:visibility_level) { Snippet::PUBLIC }
+
+        it 'rejects the shippet' do
+          expect { update_snippet(title: 'Foo') }.
+            not_to change { snippet.reload.title }
+        end
+
+        it 'creates a spam log' do
+          expect { update_snippet(title: 'Foo') }.
+            to change { SpamLog.count }.by(1)
+        end
+
+        it 'renders :edit with recaptcha disabled' do
+          stub_application_setting(recaptcha_enabled: false)
+
+          update_snippet(title: 'Foo')
+
+          expect(response).to render_template(:edit)
+        end
+
+        context 'recaptcha enabled' do
+          before do
+            stub_application_setting(recaptcha_enabled: true)
+          end
+
+          it 'renders :verify with recaptcha enabled' do
+            update_snippet(title: 'Foo')
+
+            expect(response).to render_template(:verify)
+          end
+
+          it 'renders snippet page when recaptcha verified' do
+            spammy_title = 'Whatever'
+
+            spam_logs = create_list(:spam_log, 2, user: user, title: spammy_title)
+            snippet = update_snippet({ title: spammy_title },
+                                     { spam_log_id: spam_logs.last.id,
+                                       recaptcha_verification: true })
+
+            expect(response).to redirect_to(snippet)
           end
         end
+      end
+
+      context 'when the private snippet is made public' do
+        let(:visibility_level) { Snippet::PRIVATE }
+
+        it 'rejects the shippet' do
+          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+            not_to change { snippet.reload.title }
+        end
+
+        it 'creates a spam log' do
+          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+            to change { SpamLog.count }.by(1)
+        end
+
+        it 'renders :edit with recaptcha disabled' do
+          stub_application_setting(recaptcha_enabled: false)
 
-        context 'when the snippet is public' do
-          it 'rejects the shippet' do
-            expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
-              not_to change { Snippet.count }
-            expect(response).to render_template(:new)
+          update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC)
+
+          expect(response).to render_template(:edit)
+        end
+
+        context 'recaptcha enabled' do
+          before do
+            stub_application_setting(recaptcha_enabled: true)
+          end
+
+          it 'renders :verify with recaptcha enabled' do
+            update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC)
+
+            expect(response).to render_template(:verify)
           end
 
-          it 'creates a spam log' do
-            expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
-              to change { SpamLog.count }.by(1)
+          it 'renders snippet page when recaptcha verified' do
+            spammy_title = 'Whatever'
+
+            spam_logs = create_list(:spam_log, 2, user: user, title: spammy_title)
+            snippet = update_snippet({ title: spammy_title, visibility_level: Snippet::PUBLIC },
+                                     { spam_log_id: spam_logs.last.id,
+                                       recaptcha_verification: true })
+
+            expect(response).to redirect_to(snippet)
           end
         end
       end
diff --git a/spec/controllers/snippets_controller_spec.rb b/spec/controllers/snippets_controller_spec.rb
index f90c0d76ceb..5de3b9890ef 100644
--- a/spec/controllers/snippets_controller_spec.rb
+++ b/spec/controllers/snippets_controller_spec.rb
@@ -139,12 +139,14 @@ describe SnippetsController do
   end
 
   describe 'POST #create' do
-    def create_snippet(snippet_params = {})
+    def create_snippet(snippet_params = {}, additional_params = {})
       sign_in(user)
 
       post :create, {
         personal_snippet: { title: 'Title', content: 'Content' }.merge(snippet_params)
-      }
+      }.merge(additional_params)
+
+      Snippet.last
     end
 
     context 'when the snippet is spam' do
@@ -163,13 +165,164 @@ describe SnippetsController do
         it 'rejects the shippet' do
           expect { create_snippet(visibility_level: Snippet::PUBLIC) }.
             not_to change { Snippet.count }
-          expect(response).to render_template(:new)
         end
 
         it 'creates a spam log' do
           expect { create_snippet(visibility_level: Snippet::PUBLIC) }.
             to change { SpamLog.count }.by(1)
         end
+
+        it 'renders :new with recaptcha disabled' do
+          stub_application_setting(recaptcha_enabled: false)
+
+          create_snippet(visibility_level: Snippet::PUBLIC)
+
+          expect(response).to render_template(:new)
+        end
+
+        context 'recaptcha enabled' do
+          before do
+            stub_application_setting(recaptcha_enabled: true)
+          end
+
+          it 'renders :verify with recaptcha enabled' do
+            create_snippet(visibility_level: Snippet::PUBLIC)
+
+            expect(response).to render_template(:verify)
+          end
+
+          it 'renders snippet page when recaptcha verified' do
+            spammy_title = 'Whatever'
+
+            spam_logs = create_list(:spam_log, 2, user: user, title: spammy_title)
+            snippet = create_snippet({ title: spammy_title },
+                                     { spam_log_id: spam_logs.last.id,
+                                       recaptcha_verification: true })
+
+            expect(response).to redirect_to(snippet_path(snippet))
+          end
+        end
+      end
+    end
+  end
+
+  describe 'PUT #update' do
+    let(:project) { create :project }
+    let(:snippet) { create :personal_snippet, author: user, project: project, visibility_level: visibility_level }
+
+    def update_snippet(snippet_params = {}, additional_params = {})
+      sign_in(user)
+
+      put :update, {
+        id: snippet.id,
+        personal_snippet: { title: 'Title', content: 'Content' }.merge(snippet_params)
+      }.merge(additional_params)
+
+      snippet.reload
+    end
+
+    context 'when the snippet is spam' do
+      before do
+        allow_any_instance_of(AkismetService).to receive(:is_spam?).and_return(true)
+      end
+
+      context 'when the snippet is private' do
+        let(:visibility_level) { Snippet::PRIVATE }
+
+        it 'updates the snippet' do
+          expect { update_snippet(title: 'Foo') }.
+            to change { snippet.reload.title }.to('Foo')
+        end
+      end
+
+      context 'when a private snippet is made public' do
+        let(:visibility_level) { Snippet::PRIVATE }
+
+        it 'rejects the snippet' do
+          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+            not_to change { snippet.reload.title }
+        end
+
+        it 'creates a spam log' do
+          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+            to change { SpamLog.count }.by(1)
+        end
+
+        it 'renders :edit with recaptcha disabled' do
+          stub_application_setting(recaptcha_enabled: false)
+
+          update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC)
+
+          expect(response).to render_template(:edit)
+        end
+
+        context 'recaptcha enabled' do
+          before do
+            stub_application_setting(recaptcha_enabled: true)
+          end
+
+          it 'renders :verify with recaptcha enabled' do
+            update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC)
+
+            expect(response).to render_template(:verify)
+          end
+
+          it 'renders snippet page when recaptcha verified' do
+            spammy_title = 'Whatever'
+
+            spam_logs = create_list(:spam_log, 2, user: user, title: spammy_title)
+            snippet = update_snippet({ title: spammy_title, visibility_level: Snippet::PUBLIC },
+                                     { spam_log_id: spam_logs.last.id,
+                                       recaptcha_verification: true })
+
+            expect(response).to redirect_to(snippet)
+          end
+        end
+      end
+
+      context 'when the snippet is public' do
+        let(:visibility_level) { Snippet::PUBLIC }
+
+        it 'rejects the shippet' do
+          expect { update_snippet(title: 'Foo') }.
+            not_to change { snippet.reload.title }
+        end
+
+        it 'creates a spam log' do
+          expect { update_snippet(title: 'Foo') }.
+            to change { SpamLog.count }.by(1)
+        end
+
+        it 'renders :edit with recaptcha disabled' do
+          stub_application_setting(recaptcha_enabled: false)
+
+          update_snippet(title: 'Foo')
+
+          expect(response).to render_template(:edit)
+        end
+
+        context 'recaptcha enabled' do
+          before do
+            stub_application_setting(recaptcha_enabled: true)
+          end
+
+          it 'renders :verify with recaptcha enabled' do
+            update_snippet(title: 'Foo')
+
+            expect(response).to render_template(:verify)
+          end
+
+          it 'renders snippet page when recaptcha verified' do
+            spammy_title = 'Whatever'
+
+            spam_logs = create_list(:spam_log, 2, user: user, title: spammy_title)
+            snippet = update_snippet({ title: spammy_title },
+                                     { spam_log_id: spam_logs.last.id,
+                                       recaptcha_verification: true })
+
+            expect(response).to redirect_to(snippet_path(snippet))
+          end
+        end
       end
     end
   end
diff --git a/spec/models/concerns/spammable_spec.rb b/spec/models/concerns/spammable_spec.rb
index b6e5c95d18a..fd3b8307571 100644
--- a/spec/models/concerns/spammable_spec.rb
+++ b/spec/models/concerns/spammable_spec.rb
@@ -23,6 +23,7 @@ describe Issue, 'Spammable' do
     describe '#check_for_spam?' do
       it 'returns true for public project' do
         issue.project.update_attribute(:visibility_level, Gitlab::VisibilityLevel::PUBLIC)
+
         expect(issue.check_for_spam?).to eq(true)
       end
 
diff --git a/spec/requests/api/issues_spec.rb b/spec/requests/api/issues_spec.rb
index ece1b43567d..7a0bd5f9721 100644
--- a/spec/requests/api/issues_spec.rb
+++ b/spec/requests/api/issues_spec.rb
@@ -1028,6 +1028,33 @@ describe API::Issues, api: true  do
     end
   end
 
+  describe 'PUT /projects/:id/issues/:issue_id with spam filtering' do
+    let(:params) do
+      {
+        title: 'updated title',
+        description: 'content here',
+        labels: 'label, label2'
+      }
+    end
+
+    it "does not create a new project issue" do
+      allow_any_instance_of(SpamService).to receive_messages(check_for_spam?: true)
+      allow_any_instance_of(AkismetService).to receive_messages(is_spam?: true)
+
+      put api("/projects/#{project.id}/issues/#{issue.id}", user), params
+
+      expect(response).to have_http_status(400)
+      expect(json_response['message']).to eq({ "error" => "Spam detected" })
+
+      spam_logs = SpamLog.all
+      expect(spam_logs.count).to eq(1)
+      expect(spam_logs[0].title).to eq('updated title')
+      expect(spam_logs[0].description).to eq('content here')
+      expect(spam_logs[0].user).to eq(user)
+      expect(spam_logs[0].noteable_type).to eq('Issue')
+    end
+  end
+
   describe 'PUT /projects/:id/issues/:issue_id to update labels' do
     let!(:label) { create(:label, title: 'dummy', project: project) }
     let!(:label_link) { create(:label_link, label: label, target: issue) }
diff --git a/spec/requests/api/project_snippets_spec.rb b/spec/requests/api/project_snippets_spec.rb
index f56876bcf54..da9df56401b 100644
--- a/spec/requests/api/project_snippets_spec.rb
+++ b/spec/requests/api/project_snippets_spec.rb
@@ -78,43 +78,33 @@ describe API::ProjectSnippets, api: true do
         allow_any_instance_of(AkismetService).to receive(:is_spam?).and_return(true)
       end
 
-      context 'when the project is private' do
-        let(:private_project) { create(:project_empty_repo, :private) }
-
-        context 'when the snippet is public' do
-          it 'creates the snippet' do
-            expect { create_snippet(private_project, visibility_level: Snippet::PUBLIC) }.
-              to change { Snippet.count }.by(1)
-          end
+      context 'when the snippet is private' do
+        it 'creates the snippet' do
+          expect { create_snippet(project, visibility_level: Snippet::PRIVATE) }.
+            to change { Snippet.count }.by(1)
         end
       end
 
-      context 'when the project is public' do
-        context 'when the snippet is private' do
-          it 'creates the snippet' do
-            expect { create_snippet(project, visibility_level: Snippet::PRIVATE) }.
-              to change { Snippet.count }.by(1)
-          end
+      context 'when the snippet is public' do
+        it 'rejects the shippet' do
+          expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
+            not_to change { Snippet.count }
+
+          expect(response).to have_http_status(400)
+          expect(json_response['message']).to eq({ "error" => "Spam detected" })
         end
 
-        context 'when the snippet is public' do
-          it 'rejects the shippet' do
-            expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
-              not_to change { Snippet.count }
-            expect(response).to have_http_status(400)
-          end
-
-          it 'creates a spam log' do
-            expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
-              to change { SpamLog.count }.by(1)
-          end
+        it 'creates a spam log' do
+          expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
+            to change { SpamLog.count }.by(1)
         end
       end
     end
   end
 
   describe 'PUT /projects/:project_id/snippets/:id/' do
-    let(:snippet) { create(:project_snippet, author: admin) }
+    let(:visibility_level) { Snippet::PUBLIC }
+    let(:snippet) { create(:project_snippet, author: admin, visibility_level: visibility_level) }
 
     it 'updates snippet' do
       new_content = 'New content'
@@ -138,6 +128,56 @@ describe API::ProjectSnippets, api: true do
 
       expect(response).to have_http_status(400)
     end
+
+    context 'when the snippet is spam' do
+      def update_snippet(snippet_params = {})
+        put api("/projects/#{snippet.project.id}/snippets/#{snippet.id}", admin), snippet_params
+      end
+
+      before do
+        allow_any_instance_of(AkismetService).to receive(:is_spam?).and_return(true)
+      end
+
+      context 'when the snippet is private' do
+        let(:visibility_level) { Snippet::PRIVATE }
+
+        it 'creates the snippet' do
+          expect { update_snippet(title: 'Foo') }.
+            to change { snippet.reload.title }.to('Foo')
+        end
+      end
+
+      context 'when the snippet is public' do
+        let(:visibility_level) { Snippet::PUBLIC }
+
+        it 'rejects the snippet' do
+          expect { update_snippet(title: 'Foo') }.
+            not_to change { snippet.reload.title }
+        end
+
+        it 'creates a spam log' do
+          expect { update_snippet(title: 'Foo') }.
+            to change { SpamLog.count }.by(1)
+        end
+      end
+
+      context 'when the private snippet is made public' do
+        let(:visibility_level) { Snippet::PRIVATE }
+
+        it 'rejects the snippet' do
+          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+            not_to change { snippet.reload.title }
+
+          expect(response).to have_http_status(400)
+          expect(json_response['message']).to eq({ "error" => "Spam detected" })
+        end
+
+        it 'creates a spam log' do
+          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+            to change { SpamLog.count }.by(1)
+        end
+      end
+    end
   end
 
   describe 'DELETE /projects/:project_id/snippets/:id/' do
diff --git a/spec/requests/api/snippets_spec.rb b/spec/requests/api/snippets_spec.rb
index 1ef92930b3c..41def7cd1d4 100644
--- a/spec/requests/api/snippets_spec.rb
+++ b/spec/requests/api/snippets_spec.rb
@@ -129,7 +129,9 @@ describe API::Snippets, api: true do
         it 'rejects the shippet' do
           expect { create_snippet(visibility_level: Snippet::PUBLIC) }.
             not_to change { Snippet.count }
+
           expect(response).to have_http_status(400)
+          expect(json_response['message']).to eq({ "error" => "Spam detected" })
         end
 
         it 'creates a spam log' do
@@ -141,16 +143,20 @@ describe API::Snippets, api: true do
   end
 
   describe 'PUT /snippets/:id' do
+    let(:visibility_level) { Snippet::PUBLIC }
     let(:other_user) { create(:user) }
-    let(:public_snippet) { create(:personal_snippet, :public, author: user) }
+    let(:snippet) do
+      create(:personal_snippet, author: user, visibility_level: visibility_level)
+    end
+
     it 'updates snippet' do
       new_content = 'New content'
 
-      put api("/snippets/#{public_snippet.id}", user), content: new_content
+      put api("/snippets/#{snippet.id}", user), content: new_content
 
       expect(response).to have_http_status(200)
-      public_snippet.reload
-      expect(public_snippet.content).to eq(new_content)
+      snippet.reload
+      expect(snippet.content).to eq(new_content)
     end
 
     it 'returns 404 for invalid snippet id' do
@@ -161,7 +167,7 @@ describe API::Snippets, api: true do
     end
 
     it "returns 404 for another user's snippet" do
-      put api("/snippets/#{public_snippet.id}", other_user), title: 'fubar'
+      put api("/snippets/#{snippet.id}", other_user), title: 'fubar'
 
       expect(response).to have_http_status(404)
       expect(json_response['message']).to eq('404 Snippet Not Found')
@@ -172,6 +178,56 @@ describe API::Snippets, api: true do
 
       expect(response).to have_http_status(400)
     end
+
+    context 'when the snippet is spam' do
+      def update_snippet(snippet_params = {})
+        put api("/snippets/#{snippet.id}", user), snippet_params
+      end
+
+      before do
+        allow_any_instance_of(AkismetService).to receive(:is_spam?).and_return(true)
+      end
+
+      context 'when the snippet is private' do
+        let(:visibility_level) { Snippet::PRIVATE }
+
+        it 'updates the snippet' do
+          expect { update_snippet(title: 'Foo') }.
+            to change { snippet.reload.title }.to('Foo')
+        end
+      end
+
+      context 'when the snippet is public' do
+        let(:visibility_level) { Snippet::PUBLIC }
+
+        it 'rejects the shippet' do
+          expect { update_snippet(title: 'Foo') }.
+            not_to change { snippet.reload.title }
+
+          expect(response).to have_http_status(400)
+          expect(json_response['message']).to eq({ "error" => "Spam detected" })
+        end
+
+        it 'creates a spam log' do
+          expect { update_snippet(title: 'Foo') }.
+            to change { SpamLog.count }.by(1)
+        end
+      end
+
+      context 'when a private snippet is made public' do
+        let(:visibility_level) { Snippet::PRIVATE }
+
+        it 'rejects the snippet' do
+          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+            not_to change { snippet.reload.title }
+        end
+
+        it 'creates a spam log' do
+          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+            to change { SpamLog.count }.by(1)
+        end
+      end
+    end
   end
 
   describe 'DELETE /snippets/:id' do
diff --git a/spec/requests/api/v3/issues_spec.rb b/spec/requests/api/v3/issues_spec.rb
index 33a127de98a..8e6732fe23e 100644
--- a/spec/requests/api/v3/issues_spec.rb
+++ b/spec/requests/api/v3/issues_spec.rb
@@ -986,6 +986,33 @@ describe API::V3::Issues, api: true  do
     end
   end
 
+  describe 'PUT /projects/:id/issues/:issue_id with spam filtering' do
+    let(:params) do
+      {
+        title: 'updated title',
+        description: 'content here',
+        labels: 'label, label2'
+      }
+    end
+
+    it "does not create a new project issue" do
+      allow_any_instance_of(SpamService).to receive_messages(check_for_spam?: true)
+      allow_any_instance_of(AkismetService).to receive_messages(is_spam?: true)
+
+      put v3_api("/projects/#{project.id}/issues/#{issue.id}", user), params
+
+      expect(response).to have_http_status(400)
+      expect(json_response['message']).to eq({ "error" => "Spam detected" })
+
+      spam_logs = SpamLog.all
+      expect(spam_logs.count).to eq(1)
+      expect(spam_logs[0].title).to eq('updated title')
+      expect(spam_logs[0].description).to eq('content here')
+      expect(spam_logs[0].user).to eq(user)
+      expect(spam_logs[0].noteable_type).to eq('Issue')
+    end
+  end
+
   describe 'PUT /projects/:id/issues/:issue_id to update labels' do
     let!(:label) { create(:label, title: 'dummy', project: project) }
     let!(:label_link) { create(:label_link, label: label, target: issue) }
diff --git a/spec/requests/api/v3/project_snippets_spec.rb b/spec/requests/api/v3/project_snippets_spec.rb
index 3700477f0db..957a3bf97ef 100644
--- a/spec/requests/api/v3/project_snippets_spec.rb
+++ b/spec/requests/api/v3/project_snippets_spec.rb
@@ -85,43 +85,33 @@ describe API::ProjectSnippets, api: true do
         allow_any_instance_of(AkismetService).to receive(:is_spam?).and_return(true)
       end
 
-      context 'when the project is private' do
-        let(:private_project) { create(:project_empty_repo, :private) }
-
-        context 'when the snippet is public' do
-          it 'creates the snippet' do
-            expect { create_snippet(private_project, visibility_level: Snippet::PUBLIC) }.
-              to change { Snippet.count }.by(1)
-          end
+      context 'when the snippet is private' do
+        it 'creates the snippet' do
+          expect { create_snippet(project, visibility_level: Snippet::PRIVATE) }.
+            to change { Snippet.count }.by(1)
         end
       end
 
-      context 'when the project is public' do
-        context 'when the snippet is private' do
-          it 'creates the snippet' do
-            expect { create_snippet(project, visibility_level: Snippet::PRIVATE) }.
-              to change { Snippet.count }.by(1)
-          end
+      context 'when the snippet is public' do
+        it 'rejects the shippet' do
+          expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
+            not_to change { Snippet.count }
+
+          expect(response).to have_http_status(400)
+          expect(json_response['message']).to eq({ "error" => "Spam detected" })
         end
 
-        context 'when the snippet is public' do
-          it 'rejects the shippet' do
-            expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
-              not_to change { Snippet.count }
-            expect(response).to have_http_status(400)
-          end
-
-          it 'creates a spam log' do
-            expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
-              to change { SpamLog.count }.by(1)
-          end
+        it 'creates a spam log' do
+          expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
+            to change { SpamLog.count }.by(1)
         end
       end
     end
   end
 
   describe 'PUT /projects/:project_id/snippets/:id/' do
-    let(:snippet) { create(:project_snippet, author: admin) }
+    let(:visibility_level) { Snippet::PUBLIC }
+    let(:snippet) { create(:project_snippet, author: admin, visibility_level: visibility_level) }
 
     it 'updates snippet' do
       new_content = 'New content'
@@ -145,6 +135,56 @@ describe API::ProjectSnippets, api: true do
 
       expect(response).to have_http_status(400)
     end
+
+    context 'when the snippet is spam' do
+      def update_snippet(snippet_params = {})
+        put v3_api("/projects/#{snippet.project.id}/snippets/#{snippet.id}", admin), snippet_params
+      end
+
+      before do
+        allow_any_instance_of(AkismetService).to receive(:is_spam?).and_return(true)
+      end
+
+      context 'when the snippet is private' do
+        let(:visibility_level) { Snippet::PRIVATE }
+
+        it 'creates the snippet' do
+          expect { update_snippet(title: 'Foo') }.
+            to change { snippet.reload.title }.to('Foo')
+        end
+      end
+
+      context 'when the snippet is public' do
+        let(:visibility_level) { Snippet::PUBLIC }
+
+        it 'rejects the snippet' do
+          expect { update_snippet(title: 'Foo') }.
+            not_to change { snippet.reload.title }
+        end
+
+        it 'creates a spam log' do
+          expect { update_snippet(title: 'Foo') }.
+            to change { SpamLog.count }.by(1)
+        end
+      end
+
+      context 'when the private snippet is made public' do
+        let(:visibility_level) { Snippet::PRIVATE }
+
+        it 'rejects the snippet' do
+          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+            not_to change { snippet.reload.title }
+
+          expect(response).to have_http_status(400)
+          expect(json_response['message']).to eq({ "error" => "Spam detected" })
+        end
+
+        it 'creates a spam log' do
+          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+            to change { SpamLog.count }.by(1)
+        end
+      end
+    end
   end
 
   describe 'DELETE /projects/:project_id/snippets/:id/' do
diff --git a/spec/services/issues/create_service_spec.rb b/spec/services/issues/create_service_spec.rb
index e1feeed8a67..6045d00ff09 100644
--- a/spec/services/issues/create_service_spec.rb
+++ b/spec/services/issues/create_service_spec.rb
@@ -230,16 +230,6 @@ describe Issues::CreateService, services: true do
             expect { issue }.not_to change{SpamLog.last.recaptcha_verified}
           end
         end
-
-        context 'when spam log title does not match the issue title' do
-          before do
-            opts[:title] = 'Another issue'
-          end
-
-          it 'does not mark spam_log as recaptcha_verified' do
-            expect { issue }.not_to change{SpamLog.last.recaptcha_verified}
-          end
-        end
       end
 
       context 'when recaptcha was not verified' do
diff --git a/spec/services/spam_service_spec.rb b/spec/services/spam_service_spec.rb
index 271c17dd8c0..4ce3b95aa87 100644
--- a/spec/services/spam_service_spec.rb
+++ b/spec/services/spam_service_spec.rb
@@ -1,46 +1,61 @@
 require 'spec_helper'
 
 describe SpamService, services: true do
-  describe '#check' do
-    let(:project) { create(:project, :public) }
-    let(:issue)   { create(:issue, project: project) }
-    let(:request) { double(:request, env: {}) }
+  describe '#when_recaptcha_verified' do
+    def check_spam(issue, request, recaptcha_verified)
+      described_class.new(issue, request).when_recaptcha_verified(recaptcha_verified) do
+        'yielded'
+      end
+    end
+
+    it 'yields block when recaptcha was already verified' do
+      issue = build_stubbed(:issue)
 
-    def check_spam(issue, request)
-      described_class.new(issue, request).check
+      expect(check_spam(issue, nil, true)).to eql('yielded')
     end
 
-    context 'when indicated as spam by akismet' do
-      before { allow(AkismetService).to receive(:new).and_return(double(is_spam?: true)) }
+    context 'when recaptcha was not verified' do
+      let(:project) { create(:project, :public) }
+      let(:issue)   { create(:issue, project: project) }
+      let(:request) { double(:request, env: {}) }
 
-      it 'returns false when request is missing' do
-        expect(check_spam(issue, nil)).to be_falsey
-      end
+      context 'when indicated as spam by akismet' do
+        before { allow(AkismetService).to receive(:new).and_return(double(is_spam?: true)) }
 
-      it 'returns false when issue is not public' do
-        issue = create(:issue, project: create(:project, :private))
+        it 'doesnt check as spam when request is missing' do
+          check_spam(issue, nil, false)
 
-        expect(check_spam(issue, request)).to be_falsey
-      end
+          expect(issue.spam).to be_falsey
+        end
 
-      it 'returns true' do
-        expect(check_spam(issue, request)).to be_truthy
-      end
+        it 'checks as spam' do
+          check_spam(issue, request, false)
 
-      it 'creates a spam log' do
-        expect { check_spam(issue, request) }.to change { SpamLog.count }.from(0).to(1)
-      end
-    end
+          expect(issue.spam).to be_truthy
+        end
 
-    context 'when not indicated as spam by akismet' do
-      before { allow(AkismetService).to receive(:new).and_return(double(is_spam?: false)) }
+        it 'creates a spam log' do
+          expect { check_spam(issue, request, false) }
+            .to change { SpamLog.count }.from(0).to(1)
+        end
 
-      it 'returns false' do
-        expect(check_spam(issue, request)).to be_falsey
+        it 'doesnt yield block' do
+          expect(check_spam(issue, request, false))
+            .to eql(SpamLog.last)
+        end
       end
 
-      it 'does not create a spam log' do
-        expect { check_spam(issue, request) }.not_to change { SpamLog.count }
+      context 'when not indicated as spam by akismet' do
+        before { allow(AkismetService).to receive(:new).and_return(double(is_spam?: false)) }
+
+        it 'returns false' do
+          expect(check_spam(issue, request, false)).to be_falsey
+        end
+
+        it 'does not create a spam log' do
+          expect { check_spam(issue, request, false) }
+            .not_to change { SpamLog.count }
+        end
       end
     end
   end