Merge branch '13333-consider-updating-http-parser-rb-to-0-6-0' into 'master'

Replace the tinder gem by bare HTTP requests

## What does this MR do?

It removes the `tinder` gem (used to talk to the Campfire API) and replaces its use by bare HTTP requests.

## Are there points in the code the reviewer needs to double check?

N/A.

## Why was this MR needed?

To simplify the potential dependency hell discussed in #13333.  
The initial issue was about updating `http_parser.rb` which was required by `twitter-stream` which was required by `tinder`.  
Those 3 gems are not needed anymore.  

## What are the relevant issue numbers?

#13333

## Screenshots (if relevant)

N/A.

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [x] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)
Closes #13333

See merge request !5758

3 files changed, 102 insertions, 0 deletions

diff --git a/spec/fixtures/project_services/campfire/rooms.json b/spec/fixtures/project_services/campfire/rooms.json
new file mode 100644
index 00000000000..71e9645c955
--- /dev/null
+++ b/spec/fixtures/project_services/campfire/rooms.json
@@ -0,0 +1,22 @@
+{
+  "rooms": [
+    {
+      "name": "test-room",
+      "locked": false,
+      "created_at": "2009/01/07 20:43:11 +0000",
+      "updated_at": "2009/03/18 14:31:39 +0000",
+      "topic": "The room topic\n",
+      "id": 123,
+      "membership_limit": 4
+    },
+    {
+      "name": "another room",
+      "locked": true,
+      "created_at": "2009/03/18 14:30:42 +0000",
+      "updated_at": "2013/01/27 14:14:27 +0000",
+      "topic": "Comment, ideas, GitHub notifications for eCommittee App",
+      "id": 456,
+      "membership_limit": 4
+    }
+  ]
+}
diff --git a/spec/fixtures/project_services/campfire/rooms2.json b/spec/fixtures/project_services/campfire/rooms2.json
new file mode 100644
index 00000000000..3d5f635d8b3
--- /dev/null
+++ b/spec/fixtures/project_services/campfire/rooms2.json
@@ -0,0 +1,22 @@
+{
+  "rooms": [
+    {
+      "name": "test-room-not-found",
+      "locked": false,
+      "created_at": "2009/01/07 20:43:11 +0000",
+      "updated_at": "2009/03/18 14:31:39 +0000",
+      "topic": "The room topic\n",
+      "id": 123,
+      "membership_limit": 4
+    },
+    {
+      "name": "another room",
+      "locked": true,
+      "created_at": "2009/03/18 14:30:42 +0000",
+      "updated_at": "2013/01/27 14:14:27 +0000",
+      "topic": "Comment, ideas, GitHub notifications for eCommittee App",
+      "id": 456,
+      "membership_limit": 4
+    }
+  ]
+}
diff --git a/spec/models/project_services/campfire_service_spec.rb b/spec/models/project_services/campfire_service_spec.rb
index 3e6da42803b..1adf93258f3 100644
--- a/spec/models/project_services/campfire_service_spec.rb
+++ b/spec/models/project_services/campfire_service_spec.rb
@@ -39,4 +39,62 @@ describe CampfireService, models: true do
       it { is_expected.not_to validate_presence_of(:token) }
     end
   end
+
+  describe "#execute" do
+    let(:user)    { create(:user) }
+    let(:project) { create(:project) }
+
+    before do
+      @campfire_service = CampfireService.new
+      allow(@campfire_service).to receive_messages(
+        project_id: project.id,
+        project: project,
+        service_hook: true,
+        token: 'verySecret',
+        subdomain: 'project-name',
+        room: 'test-room'
+      )
+      @sample_data = Gitlab::PushDataBuilder.build_sample(project, user)
+      @rooms_url = 'https://verySecret:X@project-name.campfirenow.com/rooms.json'
+      @headers = { 'Content-Type' => 'application/json; charset=utf-8' }
+    end
+
+    it "calls Campfire API to get a list of rooms and speak in a room" do
+      # make sure a valid list of rooms is returned
+      body = File.read(Rails.root + 'spec/fixtures/project_services/campfire/rooms.json')
+      WebMock.stub_request(:get, @rooms_url).to_return(
+        body: body,
+        status: 200,
+        headers: @headers
+      )
+      # stub the speak request with the room id found in the previous request's response
+      speak_url = 'https://verySecret:X@project-name.campfirenow.com/room/123/speak.json'
+      WebMock.stub_request(:post, speak_url)
+
+      @campfire_service.execute(@sample_data)
+
+      expect(WebMock).to have_requested(:get, @rooms_url).once
+      expect(WebMock).to have_requested(:post, speak_url).with(
+        body: /#{project.path}.*#{@sample_data[:before]}.*#{@sample_data[:after]}/
+      ).once
+    end
+
+    it "calls Campfire API to get a list of rooms but shouldn't speak in a room" do
+      # return a list of rooms that do not contain a room named 'test-room'
+      body = File.read(Rails.root + 'spec/fixtures/project_services/campfire/rooms2.json')
+      WebMock.stub_request(:get, @rooms_url).to_return(
+        body: body,
+        status: 200,
+        headers: @headers
+      )
+      # we want to make sure no request is sent to the /speak endpoint, here is a basic
+      # regexp that matches this endpoint
+      speak_url = 'https://verySecret:X@project-name.campfirenow.com/room/.*/speak.json'
+
+      @campfire_service.execute(@sample_data)
+
+      expect(WebMock).to have_requested(:get, @rooms_url).once
+      expect(WebMock).not_to have_requested(:post, /#{speak_url}/)
+    end
+  end
 end