Merge branch 'develop'

2024-09-29 23:27:12 +05:30 · 2018-02-16 20:44:12 +03:00 · 2018-02-16 20:44:12 +03:00 · befa163f0e
commit befa163f0e
parent 6e7a61f5f2 cb7adab3df
59 changed files with 1822 additions and 1893 deletions
--- a/.dockerignore
+++ b/.dockerignore
@ -1,5 +1,2 @@
-# Игнорим данные, т.к. они не нужны для внутреннего содержимого этого контейнера
 data
-
-# Vendor так же не нужен
 vendor
--- a/.gitignore
+++ b/.gitignore
@ -1,15 +1,5 @@
-# IDEA
-/.idea
-
-# Docker Compose file
-/docker-compose.yml
-/docker-compose.override.yml
-
-# vendor
-/vendor
-
-# Cover output
+.idea
+docker-compose.yml
+docker-compose.override.yml
+vendor
 .cover
-
-# Local config
-/config.yml
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@ -1,96 +0,0 @@
-# Предполагается, что между работой "build docker container" и этапом push
-# построенные docker images остаются статичными и никуда не пропадают
-#
-# В противном случае их нужно после каждого этапа билда пушить в registry
-
-stages:
-  - test
-  - build
-  - build_docker_image
-  - push
-  - cleanup
-
-variables:
-  CONTAINER_IMAGE: registry.ely.by/elyby/skinsystem
-
-.golang_template: &setup_go_environment
-  image: golang:1.9.0-alpine3.6
-  before_script:
-    - apk add --no-cache git
-    - mkdir -p $GOPATH/src/$CI_PROJECT_NAMESPACE
-    - cp -r $(pwd) $GOPATH/src/$CI_PROJECT_PATH
-    - cd $GOPATH/src/$CI_PROJECT_PATH
-    - go get -u github.com/golang/dep/cmd/dep
-    - $GOPATH/bin/dep ensure
-
-.docker_template: &setup_docker_environment
-  image: docker:latest
-  before_script:
-    - docker login -u gitlab-ci -p $CI_JOB_TOKEN registry.ely.by
-    - export TEMP_IMAGE_NAME="$CONTAINER_IMAGE:$CI_PIPELINE_ID"
-
-test:
-  <<: *setup_go_environment
-  stage: test
-  script:
-    - ./script/coverage
-
-build executable:
-  <<: *setup_go_environment
-  stage: build
-  script:
-    - export VERSION="${CI_COMMIT_TAG:-dev-$CI_COMMIT_REF_NAME-${CI_COMMIT_SHA:0:8}+build-$CI_JOB_ID}"
-    - >
-      env GOOS=linux
-      go build
-      -o $CI_PROJECT_DIR/minecraft-skinsystem
-      -ldflags "-X ${CI_PROJECT_PATH}/bootstrap.version=${VERSION}"
-      main.go
-  artifacts:
-    name: "${CI_JOB_STAGE} executable"
-    paths:
-      - $CI_PROJECT_DIR/minecraft-skinsystem
-    expire_in: 1 day
-
-build docker image:
-  <<: *setup_docker_environment
-  stage: build_docker_image
-  script:
-    - docker build -t $TEMP_IMAGE_NAME -f docker/Dockerfile .
-  only:
-    - tags
-    - develop
-
-push dev:
-  <<: *setup_docker_environment
-  stage: push
-  variables:
-    GIT_STRATEGY: none
-  script:
-    - export IMAGE_NAME="$CONTAINER_IMAGE:dev"
-    - docker tag $TEMP_IMAGE_NAME $IMAGE_NAME
-    - docker push $IMAGE_NAME
-  only:
-    - develop
-
-push tag:
-  <<: *setup_docker_environment
-  stage: push
-  variables:
-    GIT_STRATEGY: none
-  script:
-    - export IMAGE_NAME="$CONTAINER_IMAGE:$CI_COMMIT_TAG"
-    - export LATEST_IMAGE_NAME="$CONTAINER_IMAGE:latest"
-    - docker tag $TEMP_IMAGE_NAME $IMAGE_NAME
-    - docker tag $TEMP_IMAGE_NAME $LATEST_IMAGE_NAME
-    - docker push $IMAGE_NAME
-    - docker push $LATEST_IMAGE_NAME
-  only:
-    - tags
-
-cleanup temp image:
-  <<: *setup_docker_environment
-  stage: cleanup
-  when: always
-  script:
-    - docker rmi $TEMP_IMAGE_NAME || true
--- a/.travis.yml
+++ b/.travis.yml
@ -0,0 +1,34 @@
+sudo: required
+
+language: go
+go:
+  - 1.9
+
+services:
+  - docker
+
+stages:
+  - test
+  - publish
+
+before_install:
+  - go get -u github.com/golang/dep/cmd/dep
+
+jobs:
+  include:
+    - stage: test
+      script:
+      - dep ensure
+      - go test ./...
+    - stage: publish
+      script:
+      - docker login -u="$DOCKER_USERNAME" -p="$DOCKER_PASSWORD"
+      - dep ensure
+      - >
+        env GOOS=linux
+        go build
+        -o release/chrly
+        -ldflags "-X github.com/elyby/chrly/bootstrap.version=latest"
+        main.go
+      - docker build -t elyby/chrly .
+      - docker push elyby/chrly
--- a/12
+++ b/12
@ -0,0 +1,12 @@
+FROM alpine:3.7
+
+EXPOSE 80
+
+ENV STORAGE_REDIS_HOST=redis
+ENV STORAGE_FILESYSTEM_HOST=/data
+
+COPY docker-entrypoint.sh /usr/local/bin/
+COPY release/chrly /usr/local/bin/
+
+ENTRYPOINT ["docker-entrypoint.sh"]
+CMD ["serve"]
--- a/Gopkg.lock
+++ b/Gopkg.lock
@ -2,10 +2,10 @@


 [[projects]]
-  name = "github.com/assembla/cony"
-  packages = ["."]
-  revision = "dd62697b0adb9adfda8589520cb85f4cbc2361f1"
-  version = "v0.3.2"
+  name = "github.com/SermoDigital/jose"
+  packages = [".","crypto","jws","jwt"]
+  revision = "f6df55f235c24f236d11dbcf665249a59ac2021f"
+  version = "1.1"

 [[projects]]
  name = "github.com/certifi/gocertifi"
@ -82,8 +82,8 @@
 [[projects]]
  branch = "master"
  name = "github.com/mono83/slf"
-  packages = [".","filters","params","rays","recievers","recievers/ansi","recievers/statsd","wd"]
-  revision = "8188a95c8d6b74c43953abb38b8bd6fdbc412ff5"
+  packages = [".","filters","params","rays","recievers","recievers/sentry","recievers/statsd","recievers/writer","wd"]
+  revision = "79153e9636db86e1c6b74d74dd04176f257a4f2d"

 [[projects]]
  branch = "master"
@ -125,7 +125,7 @@
  branch = "master"
  name = "github.com/spf13/cobra"
  packages = ["."]
-  revision = "3c0b56b677e04926dfa835a1b3f11cd4f62f076e"
+  revision = "0c34d16c3123764e413b9ed982ada58b1c3d53ea"

 [[projects]]
  branch = "master"
@ -145,18 +145,19 @@
  revision = "25b30aa063fc18e48662b86996252eabdcf2f0c7"
  version = "v1.0.0"

-[[projects]]
-  branch = "master"
-  name = "github.com/streadway/amqp"
-  packages = ["."]
-  revision = "2cbfe40c9341ad63ba23e53013b3ddc7989d801c"
-
 [[projects]]
  name = "github.com/stretchr/testify"
  packages = ["assert"]
  revision = "69483b4bd14f5845b5a1e55bca19e954e827f1d0"
  version = "v1.1.4"

+[[projects]]
+  branch = "issue-18"
+  name = "github.com/thedevsaddam/govalidator"
+  packages = ["."]
+  revision = "59055296916bb3c6ad9cf3b21d5f2cf7059f8e76"
+  source = "https://github.com/erickskrauch/govalidator.git"
+
 [[projects]]
  branch = "master"
  name = "golang.org/x/sys"
@ -169,12 +170,6 @@
  packages = ["internal/gen","internal/triegen","internal/ucd","transform","unicode/cldr","unicode/norm"]
  revision = "bd91bbf73e9a4a801adbfb97133c992678533126"

-[[projects]]
-  name = "gopkg.in/h2non/gock.v1"
-  packages = ["."]
-  revision = "84d599244901620fb3eb96473eb9e50619f69b47"
-  version = "v1.0.6"
-
 [[projects]]
  branch = "v2"
  name = "gopkg.in/yaml.v2"
@ -184,6 +179,6 @@
 [solve-meta]
  analyzer-name = "dep"
  analyzer-version = 1
-  inputs-digest = "dd545fafc23f9b6429b5b679ad5c213c14c819f1e4ea381823acf338651122e1"
+  inputs-digest = "e6bd87f630333e3e5b03bea33720c3281a9094551bd5ced436062157fe51ab71"
  solver-name = "gps-cdcl"
  solver-version = 1
--- a/Gopkg.toml
+++ b/Gopkg.toml
@ -1,4 +1,4 @@
-ignored = ["elyby/minecraft-skinsystem"]
+ignored = ["github.com/elyby/chrly"]

 [[constraint]]
  name = "github.com/gorilla/mux"
@ -12,6 +12,7 @@ ignored = ["elyby/minecraft-skinsystem"]

 [[constraint]]
  name = "github.com/spf13/cobra"
+  branch = "master"

 [[constraint]]
  name = "github.com/spf13/viper"
@ -20,8 +21,13 @@ ignored = ["elyby/minecraft-skinsystem"]
  name = "github.com/getsentry/raven-go"

 [[constraint]]
-  name = "github.com/assembla/cony"
-  version = "^0.3.2"
+  name = "github.com/SermoDigital/jose"
+  version = "~1.1.0"
+
+[[constraint]]
+  name = "github.com/thedevsaddam/govalidator"
+  source = "https://github.com/erickskrauch/govalidator.git"
+  branch = "issue-18"

 # Testing dependencies

--- a/201
+++ b/201
@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
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+      the copyright owner that is granting the License.
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+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
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+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+
+      "Work" shall mean the work of authorship, whether in Source or
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+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
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+      of this License, Derivative Works shall not include works that remain
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+      "Contribution" shall mean any work of authorship, including
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+          notices within Derivative Works that You distribute, alongside
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+          that such additional attribution notices cannot be construed
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+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2018 Ely.by (http://ely.by)
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
--- a/README.md
+++ b/README.md
@ -1,74 +1,252 @@
-# Ely.by Minecraft Skinsystem
+# Chrly

-Реализация API системы скинов для Minecraft v4.
+Chrly is a lightweight implementation of Minecraft skins system server. It's packaged and distributed as a Docker
+image and can be downloaded from [Dockerhub](https://hub.docker.com/r/elyby/chrly/). App is written in Go, can
+withstand heavy loads and is production ready.

-## Config
+## Installation

-Конфигурация может задаваться посредством любого из перечисленных форматов файлов: JSON, TOML, YAML, HCL и
-Java properties. Кроме того, параметры конфигурации могут перезаписываться доступными при запуске программы
-ENV переменными.
+You can easily install Chrly using [docker-compose](https://docs.docker.com/compose/). The configuration below (save
+it as `docker-compose.yml`) can be used to start a Chrly server. It relies on `CHRLY_SECRET` environment variable
+that you must set before running `docker-compose up -d`. Other possible variables are described below.

-> **Заметка**: ENV переменные именуются как KEY.SUBKEY.SUBSUBKEY, т.е. все символы должны быть заглавными,
-  а точки должны отделять уровень вложенности.
+```yml
+version: '2'
+services:
+  app:
+    image: elyby/chrly
+    hostname: chrly0
+    restart: always
+    links:
+      - redis
+    volumes:
+      - ./data/capes:/data/capes
+    ports:
+      - "80:80"
+    environment:
+      CHRLY_SECRET: replace_this_value_in_production

-Пример файла конфигурации находится в [config.dist.yml](config.dist.yml). Внутри dist-файла есть комментарии,
-поясняющие назначение тех или иных параметров. Для работы его следует скопировать в локальный `config.yml`
-и отредактировать под свои нужды.
-
-## Развёртывание
-
-Деплоить проект можно двумя способами:
-
-1. Скомпилировав и запустив бинарный файл, а также обеспечив ему доступ ко всем необходмым сервисам.
-
-2. Используя Docker и docker-compose.
-
-*Первый случай не буду описывать, т.к. долго, мучительно и никто так делать не будет, я гарантирую это*,
-поэтому перейдём сразу ко второму.
-
-Прежде всего необходимо установить [Docker](https://docs.docker.com/engine/installation/) и
-[docker-compose](https://docs.docker.com/compose/install/).
-
-Для запуска последней версии проекта достаточно скопировать содержимое файла
-[docker/docker-compose.prod.yml](docker/docker-compose.prod.yml) в файл `docker-compose.yml` непосредственно
-на месте установки, после чего ввести в консоль команду:
-
-```sh
-docker-compose up -d
+  redis:
+    image: redis:4.0-32bit
+    restart: always
+    volumes:
+      - ./data/redis:/data
 ```

-Web-приложение, amqp worker и все сопутствующие сервисы будут автоматически запущены. Данные из контейнеров
-будут синхронизироваться в папку `data`.
+Chrly will mount some volumes on the host machine to persist storage for capes and Redis database.

-## Разработка
+### Config

-Перво-наперво необходимо [установить последнюю версию Go](https://golang.org/doc/install) и сконфигурировать
-переменную окружения GOPATH, а также установить инструмент контроля версий [dep](https://github.com/golang/dep).
-
-Затем можно склонировать репозиторий хитрым способом, чтобы удовлетворить все прекрасные особенности Go:
+Application's configuration is based on the environment variables. You can adjust config by modifying `environment` key
+inside your `docker-compose.yml` file. After value will have been changed, container should be stopped and recreated.
+If environment variables have been changed, Docker will automatically recreate the container, so you only need to `stop`
+and `up` it:

 ```sh
-# Сперва создадим подпапку для приватных Go проектов Ely.by
-mkdir -p $GOPATH/src/elyby
-# Затем непосредственно клинируем репозиторий туда, где его ожидает увидеть Go
-git clone git@gitlab.ely.by:elyby/minecraft-skinsystem.git $GOPATH/src/elyby/minecraft-skinsystem
-# Переходим в папку проекта
-cd $GOPATH/src/elyby/minecraft-skinsystem
-# Устанавливаем зависимости
+docker-compose stop app
+docker-compose up -d app
+```
+
+**Variables to adjust:**
+
+| ENV                | Description                                                                        | Example                                   |
+|--------------------|------------------------------------------------------------------------------------|-------------------------------------------|
+| STORAGE_REDIS_POOL | By default, Chrly creates pool with 10 connection, but you may want to increase it | `20`                                      |
+| STATSD_ADDR        | StatsD can be used to collect metrics                                              | `localhost:8125`                          |
+| SENTRY_DSN         | Sentry can be used to collect app errors                                           | `https://public:private@your.sentry.io/1` |
+
+If something goes wrong, you can always access logs by executing `docker-compose logs -f app`.
+
+## Endpoints
+
+Each endpoint that accepts `username` as a part of an url takes it case insensitive. `.png` part can be omitted too.
+
+#### `GET /skins/{username}.png`
+
+This endpoint responds to requested `username` with a skin texture. If user's skin was set as texture's link, then it'll
+respond with the `301` redirect to that url. If there is no record for requested username, it'll redirect to the
+Mojang skins system as: `http://skins.minecraft.net/MinecraftSkins/{username}.png` with the original username's case.
+
+#### `GET /cloaks/{username}.png`
+
+It responds to requested `username` with a cape texture. If user's cape file doesn't exists, then it'll redirect to the
+Mojang skins system as: `http://skins.minecraft.net/MinecraftCloaks/{username}.png` with the original username's case.
+
+#### `GET /textures/{username}`
+
+This endpoint forms response payloads as if it was the `textures`' property, but without base64 encoding. For example:
+
+```json
+{
+    "SKIN": {
+        "url": "http://ely.by/minecraft/skins/skin.png",
+        "hash": "55d2a8848764f5ff04012cdb093458bd",
+        "metadata": {
+            "model": "slim"
+        }
+    },
+    "CAPE": {
+        "url": "http://skinsystem.ely.by/cloaks/username",
+        "hash": "424ff79dce9940af89c28ad80de8aaad"
+    }
+}
+```
+
+If record for the requested username wasn't found, cape would be omitted and skin would be formed for Mojang skins
+system. Hash would be formed as the username plus the half-hour-ranged time of request, which is needed to improve
+caching of Mojang skins inside Minecraft.
+
+That request is handy in case when your server implements authentication for a game server (e.g. join/hasJoined
+operation) and you have to respond with hasJoined request with an actual user textures. You have to simply send request
+to the Chrly server and put the result in your hasJoined response.
+
+#### `GET /textures/signed/{username}`
+
+Actually, it's [Ely.by](http://ely.by) feature called [Server Skins System](http://ely.by/server-skins-system), but if
+you have your own source of the Mojang signatures, then you can pass it with textures and it'll be displayed in this
+method. Received response should be directly sent to the client without any modification via game server API.
+
+Response example:
+
+```json
+{
+    "id": "0f657aa8bfbe415db7005750090d3af3",
+    "name": "username",
+    "properties": [
+        {
+            "name": "textures",
+            "signature": "signature value",
+            "value": "base64 encoded value"
+        },
+        {
+            "name": "chrly",
+            "value": "how do you tame a horse in Minecraft?"
+        }
+    ]
+}
+```
+
+If there is no requested `username` or `mojangSignature` field isn't set, `204` status code will be sent.
+
+#### `GET /skins?name={username}`
+
+Equivalent of the `GET /skins/{username}.png`, but constructed especially for old Minecraft versions, where username
+placeholder wasn't used.
+
+#### `GET /cloaks?name={username}`
+
+Equivalent of the `GET /cloaks/{username}.png`, but constructed especially for old Minecraft versions, where username
+placeholder wasn't used.
+
+### Records manipulating API
+
+Each request to the internal API should be performed with the Bearer authorization header. Example curl request:
+
+```sh
+curl -X POST -i http://chrly.domain.com/api/skins \
+  -H "Authorization: Bearer Ym9zY236Ym9zY28="
+```
+
+You can obtain token by executing `docker-compose run --rm app token`.
+
+#### `POST /api/skins`
+
+> **Warning**: skin uploading via `skin` field is not implemented for now.
+
+Endpoint allows you to create or update skin record for a username. To upload skin, you have to send multipart
+form data. `form-urlencoded` also supported, but, as you may know, it doesn't support files uploading.
+
+**Request params:**
+
+| Field           | Type   | Description                                                                    |
+|-----------------|--------|--------------------------------------------------------------------------------|
+| identityId      | int    | Unique record identifier.                                                      |
+| username        | string | Username. Case insensitive.                                                    |
+| uuid            | uuid   | UUID of the user.                                                              |
+| skinId          | int    | Skin identifier.                                                               |
+| hash            | string | Skin's hash. Algorithm can be any. For example `md5`.                          |
+| is1_8           | bool   | Does the skin have the new format (64x64).                                     |
+| isSlim          | bool   | Does skin have slim arms (Alex model).                                         |
+| mojangTextures  | string | Mojang textures field. It must be a base64 encoded json string. Not required.  |
+| mojangSignature | string | Signature for Mojang textures, which is required when `mojangTextures` passed. |
+| url             | string | Actual url of the skin. You have to pass this parameter or `skin`.             |
+| skin            | file   | Skin file. You have to pass this parameter or `url`.                           |
+
+If successful you'll receive `201` status code. In the case of failure there will be `400` status code and errors list
+as json:
+
+```json
+{
+    "errors": {
+        "identityId": [
+            "The identityId field must be numeric"
+        ]
+    }
+}
+```
+
+#### `DELETE /api/skins/id:{identityId}`
+
+Performs record removal by identity id. Request body is not required. On success you will receive `204` status code.
+On failure it'll be `404` with the json body:
+
+```json
+{
+    "error": "Cannot find record for requested user id"
+}
+```
+
+#### `DELETE /api/skins/{username}`
+
+Same endpoint as above but it removes record by identity's username. Have the same behavior, but in case of failure
+response will be:
+
+```json
+{
+    "error": "Cannot find record for requested username"
+}
+```
+
+## Development
+
+First of all you should install the [latest stable version of Go](https://golang.org/doc/install) and set `GOPATH`
+environment variable.
+
+This project uses [`dep`](https://github.com/golang/dep) for dependencies management, so it
+[should be installed](https://github.com/golang/dep#installation) too.
+
+Then you must fork this repository. Now follow these steps:
+
+```sh
+# Get the source code
+go get github.com/elyby/chrly
+# Switch to the project folder
+cd $GOPATH/src/github.com/elyby/chrly
+# Install dependencies (it can take a while)
 dep ensure
+# Add your fork link as a remote
+git remote add fork git@github.com:your-username/chrly.git
+# Create a new branch for your task
+git checkout -b iss-123
 ```

-Чтобы запустить проект достаточно написать `go run main.go`, но без файла конфигурации и Redis
-программа долго не проработает. Поэтому сперва копируем `config.dist.yml` в `config.yml` и, при необходимости,
-затачиваем его под себя.
-
-Redis можно установить в систему самостоятельно, но гораздо удобнее воспользоваться готовыми сервисами,
-описанными в [docker/docker-compose.dev.yml](docker/docker-compose.dev.yml). Для этого просто копируем
-`docker-compose.dev.yml` и поднимаем сервисы:
+You only need to execute `go run main.go` to run the project, but without Redis database and a secret key it won't work
+for very long. You have to export `CHRLY_SECRET` environment variable globally or pass it via `env`:

 ```sh
-cp docker/docker-compose.dev.yml docker-compose.yml
+env CHRLY_SECRET=some_local_secret go run main.go serve
+```
+
+Redis can be installed manually, but if you have [Docker installed](https://docs.docker.com/install/), you can run
+predefined docker-compose service. Simply execute the next commands:
+
+```sh
+cp docker-compose.dev.yml docker-compose.yml
 docker-compose up -d
 ```

-После этого `go run main.go serve` должен запустить web-сервер без дополнительной модификации файла конфигурации.
+If your Redis instance isn't located at the `localhost`, you can change host by editing environment variable
+`STORAGE_REDIS_HOST`.
+
+After all of that `go run main.go serve` should successfully start the application.
+To run tests execute `go test ./...`. If your Go version is older than 1.9, then run a `/script/test`.
--- a/api/accounts/accounts.go
+++ b/api/accounts/accounts.go
@ -1,166 +0,0 @@
-package accounts
-
-import (
-	"encoding/json"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"net/url"
-	"path"
-	"strings"
-)
-
-type Config struct {
-	Addr   string
-	Id     string
-	Secret string
-	Scopes []string
-
-	Client *http.Client
-}
-
-type Token struct {
-	AccessToken string `json:"access_token"`
-	TokenType   string `json:"token_type"`
-	ExpiresIn   int    `json:"expires_in"`
-	config      *Config
-}
-
-func (config *Config) GetToken() (*Token, error) {
-	form := url.Values{}
-	form.Add("client_id", config.Id)
-	form.Add("client_secret", config.Secret)
-	form.Add("grant_type", "client_credentials")
-	form.Add("scope", strings.Join(config.Scopes, ","))
-
-	response, err := config.getHttpClient().Post(config.getTokenUrl(), "application/x-www-form-urlencoded", strings.NewReader(form.Encode()))
-	if err != nil {
-		return nil, err
-	}
-	defer response.Body.Close()
-
-	var result *Token
-	responseError := handleResponse(response)
-	if responseError != nil {
-		return nil, responseError
-	}
-
-	body, _ := ioutil.ReadAll(response.Body)
-	unmarshalError := json.Unmarshal(body, &result)
-	if unmarshalError != nil {
-		return nil, err
-	}
-
-	result.config = config
-
-	return result, nil
-}
-
-func (config *Config) getTokenUrl() string {
-	return concatenateHostAndPath(config.Addr, "/api/oauth2/v1/token")
-}
-
-func (config *Config) getHttpClient() *http.Client {
-	if config.Client == nil {
-		config.Client = &http.Client{}
-	}
-
-	return config.Client
-}
-
-type AccountInfoResponse struct {
-	Id       int    `json:"id"`
-	Uuid     string `json:"uuid"`
-	Username string `json:"username"`
-	Email    string `json:"email"`
-}
-
-func (token *Token) AccountInfo(attribute string, value string) (*AccountInfoResponse, error) {
-	request := token.newRequest("GET", token.accountInfoUrl(), nil)
-
-	query := request.URL.Query()
-	query.Add(attribute, value)
-	request.URL.RawQuery = query.Encode()
-
-	response, err := token.config.Client.Do(request)
-	if err != nil {
-		return nil, err
-	}
-	defer response.Body.Close()
-
-	var info *AccountInfoResponse
-
-	responseError := handleResponse(response)
-	if responseError != nil {
-		return nil, responseError
-	}
-
-	body, _ := ioutil.ReadAll(response.Body)
-	json.Unmarshal(body, &info)
-
-	return info, nil
-}
-
-func (token *Token) accountInfoUrl() string {
-	return concatenateHostAndPath(token.config.Addr, "/api/internal/accounts/info")
-}
-
-func (token *Token) newRequest(method string, urlStr string, body io.Reader) *http.Request {
-	request, err := http.NewRequest(method, urlStr, body)
-	if err != nil {
-		panic(err)
-	}
-
-	request.Header.Add("Authorization", "Bearer " + token.AccessToken)
-
-	return request
-}
-
-func concatenateHostAndPath(host string, pathToJoin string) string {
-	u, _ := url.Parse(host)
-	u.Path = path.Join(u.Path, pathToJoin)
-
-	return u.String()
-}
-
-type UnauthorizedResponse struct {}
-
-func (err UnauthorizedResponse) Error() string {
-	return "Unauthorized response"
-}
-
-type ForbiddenResponse struct {}
-
-func (err ForbiddenResponse) Error() string {
-	return "Forbidden response"
-}
-
-type NotFoundResponse struct {}
-
-func (err NotFoundResponse) Error() string {
-	return "Not found"
-}
-
-type NotSuccessResponse struct {
-	StatusCode int
-}
-
-func (err NotSuccessResponse) Error() string {
-	return fmt.Sprintf("Response code is \"%d\"", err.StatusCode)
-}
-
-func handleResponse(response *http.Response) error {
-	switch status := response.StatusCode; status {
-	case 200:
-		return nil
-	case 401:
-		return &UnauthorizedResponse{}
-	case 403:
-		return &ForbiddenResponse{}
-	case 404:
-		return &NotFoundResponse{}
-	default:
-		return &NotSuccessResponse{status}
-	}
-}
--- a/api/accounts/accounts_test.go
+++ b/api/accounts/accounts_test.go
@ -1,98 +0,0 @@
-package accounts
-
-import (
-	"net/http"
-	"strings"
-	"testing"
-
-	testify "github.com/stretchr/testify/assert"
-	"gopkg.in/h2non/gock.v1"
-)
-
-func TestConfig_GetToken(t *testing.T) {
-	assert := testify.New(t)
-
-	defer gock.Off()
-	gock.New("https://account.ely.by").
-		Post("/api/oauth2/v1/token").
-		Body(strings.NewReader("client_id=mock-id&client_secret=mock-secret&grant_type=client_credentials&scope=scope1%2Cscope2")).
-		Reply(200).
-		JSON(map[string]interface{}{
-			"access_token": "mocked-token",
-			"token_type": "Bearer",
-			"expires_in": 86400,
-		})
-
-	client := &http.Client{}
-	gock.InterceptClient(client)
-
-	config := &Config{
-		Addr: "https://account.ely.by",
-		Id: "mock-id",
-		Secret: "mock-secret",
-		Scopes: []string{"scope1", "scope2"},
-		Client: client,
-	}
-
-	result, err := config.GetToken()
-	if assert.NoError(err) {
-		assert.Equal("mocked-token", result.AccessToken)
-		assert.Equal("Bearer", result.TokenType)
-		assert.Equal(86400, result.ExpiresIn)
-	}
-}
-
-func TestToken_AccountInfo(t *testing.T) {
-	assert := testify.New(t)
-
-	defer gock.Off()
-	// To test valid behavior
-	gock.New("https://account.ely.by").
-		Get("/api/internal/accounts/info").
-		MatchParam("id", "1").
-		MatchHeader("Authorization", "Bearer mock-token").
-		Reply(200).
-		JSON(map[string]interface{}{
-			"id": 1,
-			"uuid": "0f657aa8-bfbe-415d-b700-5750090d3af3",
-			"username": "dummy",
-			"email": "dummy@ely.by",
-		})
-
-	// To test behavior on invalid or expired token
-	gock.New("https://account.ely.by").
-		Get("/api/internal/accounts/info").
-		MatchParam("id", "1").
-		MatchHeader("Authorization", "Bearer mock-token").
-		Reply(401).
-		JSON(map[string]interface{}{
-			"name": "Unauthorized",
-			"message": "Incorrect token",
-			"code": 0,
-			"status": 401,
-		})
-
-	client := &http.Client{}
-	gock.InterceptClient(client)
-
-	token := &Token{
-		AccessToken: "mock-token",
-		config: &Config{
-			Addr: "https://account.ely.by",
-			Client: client,
-		},
-	}
-
-	result, err := token.AccountInfo("id", "1")
-	if assert.NoError(err) {
-		assert.Equal(1, result.Id)
-		assert.Equal("0f657aa8-bfbe-415d-b700-5750090d3af3", result.Uuid)
-		assert.Equal("dummy", result.Username)
-		assert.Equal("dummy@ely.by", result.Email)
-	}
-
-	result2, err2 := token.AccountInfo("id", "1")
-	assert.Nil(result2)
-	assert.Error(err2)
-	assert.IsType(&UnauthorizedResponse{}, err2)
-}
--- a/api/accounts/auto-refresh-token.go
+++ b/api/accounts/auto-refresh-token.go
@ -1,56 +0,0 @@
-package accounts
-
-type AutoRefresh struct {
-	token 		 *Token
-	config 		 *Config
-	repeatsCount int
-}
-
-const repeatsLimit = 3
-
-func (config *Config) GetTokenWithAutoRefresh() *AutoRefresh {
-	return &AutoRefresh{
-		config: config,
-	}
-}
-
-func (refresher *AutoRefresh) AccountInfo(attribute string, value string) (*AccountInfoResponse, error) {
-	defer refresher.resetRepeatsCount()
-
-	apiToken, err := refresher.getToken()
-	if err != nil {
-		return nil, err
-	}
-
-	result, err := apiToken.AccountInfo(attribute, value)
-	if err != nil {
-		_, isTokenExpire := err.(*UnauthorizedResponse)
-		if !isTokenExpire || refresher.repeatsCount >= repeatsLimit - 1 {
-			return nil, err
-		}
-
-		refresher.repeatsCount++
-		refresher.token = nil
-
-		return refresher.AccountInfo(attribute, value)
-	}
-
-	return result, nil
-}
-
-func (refresher *AutoRefresh) getToken() (*Token, error) {
-	if refresher.token == nil {
-		newToken, err := refresher.config.GetToken()
-		if err != nil {
-			return nil, err
-		}
-
-		refresher.token = newToken
-	}
-
-	return refresher.token, nil
-}
-
-func (refresher *AutoRefresh) resetRepeatsCount() {
-	refresher.repeatsCount = 0
-}
--- a/api/accounts/auto-refresh-token_test.go
+++ b/api/accounts/auto-refresh-token_test.go
@ -1,242 +0,0 @@
-package accounts
-
-import (
-	"net/http"
-	"strings"
-	"testing"
-
-	testify "github.com/stretchr/testify/assert"
-	"gopkg.in/h2non/gock.v1"
-)
-
-var config = &Config{
-	Addr: "https://account.ely.by",
-	Id: "mock-id",
-	Secret: "mock-secret",
-	Scopes: []string{"scope1", "scope2"},
-}
-
-func TestConfig_GetTokenWithAutoRefresh(t *testing.T) {
-	assert := testify.New(t)
-
-	testConfig := &Config{}
-	*testConfig = *config
-
-	result := testConfig.GetTokenWithAutoRefresh()
-	assert.Equal(testConfig, result.config)
-}
-
-func TestAutoRefresh_AccountInfo(t *testing.T) {
-	assert := testify.New(t)
-
-	defer gock.Off()
-	gock.New("https://account.ely.by").
-		Post("/api/oauth2/v1/token").
-		Body(strings.NewReader("client_id=mock-id&client_secret=mock-secret&grant_type=client_credentials&scope=scope1%2Cscope2")).
-		Reply(200).
-		JSON(map[string]interface{}{
-			"access_token": "mocked-token",
-			"token_type": "Bearer",
-			"expires_in": 86400,
-		})
-
-	gock.New("https://account.ely.by").
-		Get("/api/internal/accounts/info").
-		Times(2).
-		MatchParam("id", "1").
-		MatchHeader("Authorization", "Bearer mocked-token").
-		Reply(200).
-		JSON(map[string]interface{}{
-			"id": 1,
-			"uuid": "0f657aa8-bfbe-415d-b700-5750090d3af3",
-			"username": "dummy",
-			"email": "dummy@ely.by",
-		})
-
-	client := &http.Client{}
-	gock.InterceptClient(client)
-
-	testConfig := &Config{}
-	*testConfig = *config
-	testConfig.Client = client
-
-	autoRefresher := testConfig.GetTokenWithAutoRefresh()
-	result, err := autoRefresher.AccountInfo("id", "1")
-	if assert.NoError(err) {
-		assert.Equal(1, result.Id)
-		assert.Equal("0f657aa8-bfbe-415d-b700-5750090d3af3", result.Uuid)
-		assert.Equal("dummy", result.Username)
-		assert.Equal("dummy@ely.by", result.Email)
-	}
-
-	result2, err2 := autoRefresher.AccountInfo("id", "1")
-	if assert.NoError(err2) {
-		assert.Equal(result, result2, "Results should still be same without token refreshing")
-	}
-}
-
-func TestAutoRefresh_AccountInfo2(t *testing.T) {
-	assert := testify.New(t)
-
-	defer gock.Off()
-	gock.New("https://account.ely.by").
-		Post("/api/oauth2/v1/token").
-		Body(strings.NewReader("client_id=mock-id&client_secret=mock-secret&grant_type=client_credentials&scope=scope1%2Cscope2")).
-		Reply(200).
-		JSON(map[string]interface{}{
-			"access_token": "mocked-token-1",
-			"token_type": "Bearer",
-			"expires_in": 86400,
-		})
-
-	gock.New("https://account.ely.by").
-		Get("/api/internal/accounts/info").
-		MatchParam("id", "1").
-		MatchHeader("Authorization", "Bearer mocked-token-1").
-		Reply(200).
-		JSON(map[string]interface{}{
-			"id": 1,
-			"uuid": "0f657aa8-bfbe-415d-b700-5750090d3af3",
-			"username": "dummy",
-			"email": "dummy@ely.by",
-		})
-
-	gock.New("https://account.ely.by").
-		Get("/api/internal/accounts/info").
-		MatchParam("id", "1").
-		MatchHeader("Authorization", "Bearer mocked-token-1").
-		Reply(401).
-		JSON(map[string]interface{}{
-			"name": "Unauthorized",
-			"message": "Incorrect token",
-			"code": 0,
-			"status": 401,
-		})
-
-	gock.New("https://account.ely.by").
-		Post("/api/oauth2/v1/token").
-		Body(strings.NewReader("client_id=mock-id&client_secret=mock-secret&grant_type=client_credentials&scope=scope1%2Cscope2")).
-		Reply(200).
-		JSON(map[string]interface{}{
-			"access_token": "mocked-token-2",
-			"token_type": "Bearer",
-			"expires_in": 86400,
-		})
-
-	gock.New("https://account.ely.by").
-		Get("/api/internal/accounts/info").
-		MatchParam("id", "1").
-		MatchHeader("Authorization", "Bearer mocked-token-2").
-		Reply(200).
-		JSON(map[string]interface{}{
-			"id": 1,
-			"uuid": "0f657aa8-bfbe-415d-b700-5750090d3af3",
-			"username": "dummy",
-			"email": "dummy@ely.by",
-		})
-
-	client := &http.Client{}
-	gock.InterceptClient(client)
-
-	testConfig := &Config{}
-	*testConfig = *config
-	testConfig.Client = client
-
-	autoRefresher := testConfig.GetTokenWithAutoRefresh()
-	result, err := autoRefresher.AccountInfo("id", "1")
-	if assert.NoError(err) {
-		assert.Equal(1, result.Id)
-		assert.Equal("0f657aa8-bfbe-415d-b700-5750090d3af3", result.Uuid)
-		assert.Equal("dummy", result.Username)
-		assert.Equal("dummy@ely.by", result.Email)
-	}
-
-	result2, err2 := autoRefresher.AccountInfo("id", "1")
-	if assert.NoError(err2) {
-		assert.Equal(result, result2, "Results should still be same with refreshed token")
-	}
-}
-
-func TestAutoRefresh_AccountInfo3(t *testing.T) {
-	assert := testify.New(t)
-
-	defer gock.Off()
-	gock.New("https://account.ely.by").
-		Post("/api/oauth2/v1/token").
-		Body(strings.NewReader("client_id=mock-id&client_secret=mock-secret&grant_type=client_credentials&scope=scope1%2Cscope2")).
-		Reply(200).
-		JSON(map[string]interface{}{
-			"access_token": "mocked-token-1",
-			"token_type": "Bearer",
-			"expires_in": 86400,
-		})
-
-	gock.New("https://account.ely.by").
-		Get("/api/internal/accounts/info").
-		MatchParam("id", "1").
-		MatchHeader("Authorization", "Bearer mocked-token-1").
-		Reply(404).
-		JSON(map[string]interface{}{
-			"name": "Not Found",
-			"message": "Page not found.",
-			"code": 0,
-			"status": 404,
-		})
-
-	client := &http.Client{}
-	gock.InterceptClient(client)
-
-	testConfig := &Config{}
-	*testConfig = *config
-	testConfig.Client = client
-
-	autoRefresher := testConfig.GetTokenWithAutoRefresh()
-	result, err := autoRefresher.AccountInfo("id", "1")
-	assert.Nil(result)
-	assert.Error(err)
-	assert.IsType(&NotFoundResponse{}, err)
-}
-
-func TestAutoRefresh_AccountInfo4(t *testing.T) {
-	assert := testify.New(t)
-
-	defer gock.Off()
-	gock.New("https://account.ely.by").
-		Post("/api/oauth2/v1/token").
-		Times(3).
-		Body(strings.NewReader("client_id=mock-id&client_secret=mock-secret&grant_type=client_credentials&scope=scope1%2Cscope2")).
-		Reply(200).
-		JSON(map[string]interface{}{
-			"access_token": "mocked-token-1",
-			"token_type": "Bearer",
-			"expires_in": 86400,
-		})
-
-	gock.New("https://account.ely.by").
-		Get("/api/internal/accounts/info").
-		Times(3).
-		MatchParam("id", "1").
-		MatchHeader("Authorization", "Bearer mocked-token-1").
-		Reply(401).
-		JSON(map[string]interface{}{
-			"name": "Unauthorized",
-			"message": "Incorrect token",
-			"code": 0,
-			"status": 401,
-		})
-
-	client := &http.Client{}
-	gock.InterceptClient(client)
-
-	testConfig := &Config{}
-	*testConfig = *config
-	testConfig.Client = client
-
-	autoRefresher := testConfig.GetTokenWithAutoRefresh()
-	result, err := autoRefresher.AccountInfo("id", "1")
-	assert.Nil(result)
-	assert.Error(err)
-	if !assert.IsType(&UnauthorizedResponse{}, err) {
-		t.Fatal(err)
-	}
-}
--- a/auth/jwt.go
+++ b/auth/jwt.go
@ -0,0 +1,82 @@
+package auth
+
+import (
+	"errors"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/SermoDigital/jose/crypto"
+	"github.com/SermoDigital/jose/jws"
+)
+
+var hashAlg = crypto.SigningMethodHS256
+
+const scopesClaim = "scopes"
+
+type Scope string
+
+var (
+	SkinScope = Scope("skin")
+)
+
+type JwtAuth struct {
+	Key []byte
+}
+
+func (t *JwtAuth) NewToken(scopes ...Scope) ([]byte, error) {
+	if len(t.Key) == 0 {
+		return nil, errors.New("signing key not available")
+	}
+
+	claims := jws.Claims{}
+	claims.Set(scopesClaim, scopes)
+	claims.SetIssuedAt(time.Now())
+	encoder := jws.NewJWT(claims, hashAlg)
+	token, err := encoder.Serialize(t.Key)
+	if err != nil {
+		return nil, err
+	}
+
+	return token, nil
+}
+
+func (t *JwtAuth) Check(req *http.Request) error {
+	if len(t.Key) == 0 {
+		return &Unauthorized{"Signing key not set"}
+	}
+
+	bearerToken := req.Header.Get("Authorization")
+	if bearerToken == "" {
+		return &Unauthorized{"Authentication header not presented"}
+	}
+
+	if !strings.EqualFold(bearerToken[0:7], "BEARER ") {
+		return &Unauthorized{"Cannot recognize JWT token in passed value"}
+	}
+
+	tokenStr := bearerToken[7:]
+	token, err := jws.ParseJWT([]byte(tokenStr))
+	if err != nil {
+		return &Unauthorized{"Cannot parse passed JWT token"}
+	}
+
+	err = token.Validate(t.Key, hashAlg)
+	if err != nil {
+		return &Unauthorized{"JWT token have invalid signature. It may be corrupted or expired."}
+	}
+
+	return nil
+}
+
+type Unauthorized struct {
+	Reason string
+}
+
+func (e *Unauthorized) Error() string {
+	if e.Reason != "" {
+		return e.Reason
+	}
+
+	return "Unauthorized"
+}
--- a/auth/jwt_test.go
+++ b/auth/jwt_test.go
@ -0,0 +1,97 @@
+package auth
+
+import (
+	"net/http/httptest"
+	"testing"
+
+	testify "github.com/stretchr/testify/assert"
+)
+
+const jwt = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxNTE2NjU4MTkzIiwic2NvcGVzIjoic2tpbiJ9.agbBS0qdyYMBaVfTZJAZcTTRgW1Y0kZty4H3N2JHBO8"
+
+func TestJwtAuth_NewToken_Success(t *testing.T) {
+	assert := testify.New(t)
+
+	jwt := &JwtAuth{[]byte("secret")}
+	token, err := jwt.NewToken(SkinScope)
+	assert.Nil(err)
+	assert.NotNil(token)
+}
+
+func TestJwtAuth_NewToken_KeyNotAvailable(t *testing.T) {
+	assert := testify.New(t)
+
+	jwt := &JwtAuth{}
+	token, err := jwt.NewToken(SkinScope)
+	assert.Error(err, "signing key not available")
+	assert.Nil(token)
+}
+
+func TestJwtAuth_Check_EmptyRequest(t *testing.T) {
+	assert := testify.New(t)
+
+	req := httptest.NewRequest("POST", "http://localhost", nil)
+	jwt := &JwtAuth{[]byte("secret")}
+
+	err := jwt.Check(req)
+	assert.IsType(&Unauthorized{}, err)
+	assert.EqualError(err, "Authentication header not presented")
+}
+
+func TestJwtAuth_Check_NonBearer(t *testing.T) {
+	assert := testify.New(t)
+
+	req := httptest.NewRequest("POST", "http://localhost", nil)
+	req.Header.Add("Authorization", "this is not jwt")
+	jwt := &JwtAuth{[]byte("secret")}
+
+	err := jwt.Check(req)
+	assert.IsType(&Unauthorized{}, err)
+	assert.EqualError(err, "Cannot recognize JWT token in passed value")
+}
+
+func TestJwtAuth_Check_BearerButNotJwt(t *testing.T) {
+	assert := testify.New(t)
+
+	req := httptest.NewRequest("POST", "http://localhost", nil)
+	req.Header.Add("Authorization", "Bearer thisIs.Not.Jwt")
+	jwt := &JwtAuth{[]byte("secret")}
+
+	err := jwt.Check(req)
+	assert.IsType(&Unauthorized{}, err)
+	assert.EqualError(err, "Cannot parse passed JWT token")
+}
+
+func TestJwtAuth_Check_SecretNotAvailable(t *testing.T) {
+	assert := testify.New(t)
+
+	req := httptest.NewRequest("POST", "http://localhost", nil)
+	req.Header.Add("Authorization", "Bearer " + jwt)
+	jwt := &JwtAuth{}
+
+	err := jwt.Check(req)
+	assert.Error(err, "Signing key not set")
+}
+
+func TestJwtAuth_Check_SecretInvalid(t *testing.T) {
+	assert := testify.New(t)
+
+	req := httptest.NewRequest("POST", "http://localhost", nil)
+	req.Header.Add("Authorization", "Bearer " + jwt)
+	jwt := &JwtAuth{[]byte("this is another secret")}
+
+	err := jwt.Check(req)
+	assert.IsType(&Unauthorized{}, err)
+	assert.EqualError(err, "JWT token have invalid signature. It may be corrupted or expired.")
+}
+
+func TestJwtAuth_Check_Valid(t *testing.T) {
+	assert := testify.New(t)
+
+	req := httptest.NewRequest("POST", "http://localhost", nil)
+	req.Header.Add("Authorization", "Bearer " + jwt)
+	jwt := &JwtAuth{[]byte("secret")}
+
+	err := jwt.Check(req)
+	assert.Nil(err)
+}
--- a/bootstrap/bootstrap.go
+++ b/bootstrap/bootstrap.go
@ -1,18 +1,14 @@
 package bootstrap

 import (
-	"fmt"
-	"net/url"
 	"os"

-	"github.com/assembla/cony"
 	"github.com/getsentry/raven-go"
 	"github.com/mono83/slf/rays"
+	"github.com/mono83/slf/recievers/sentry"
 	"github.com/mono83/slf/recievers/statsd"
 	"github.com/mono83/slf/recievers/writer"
 	"github.com/mono83/slf/wd"
-
-	"elyby/minecraft-skinsystem/logger/receivers/sentry"
 )

 var version = ""
@ -66,26 +62,3 @@ func CreateLogger(statsdAddr string, sentryAddr string) (wd.Watchdog, error) {

 	return wd.New("", "").WithParams(rays.Host), nil
 }
-
-type RabbitMQConfig struct {
-	Username string
-	Password string
-	Host string
-	Port int
-	Vhost string
-}
-
-func CreateRabbitMQClient(config *RabbitMQConfig) *cony.Client {
-	addr := fmt.Sprintf(
-		"amqp://%s:%s@%s:%d/%s",
-		config.Username,
-		config.Password,
-		config.Host,
-		config.Port,
-		url.PathEscape(config.Vhost),
-	)
-
-	client := cony.NewClient(cony.URL(addr), cony.Backoff(cony.DefaultBackoff))
-
-	return client
-}
--- a/cmd/amqpWorker.go
+++ b/cmd/amqpWorker.go
@ -1,67 +0,0 @@
-package cmd
-
-import (
-	"fmt"
-	"log"
-
-	"github.com/spf13/cobra"
-	"github.com/spf13/viper"
-
-	"elyby/minecraft-skinsystem/api/accounts"
-	"elyby/minecraft-skinsystem/bootstrap"
-	"elyby/minecraft-skinsystem/db"
-	"elyby/minecraft-skinsystem/worker"
-)
-
-var amqpWorkerCmd = &cobra.Command{
-	Use:   "amqp-worker",
-	Short: "Launches a worker which listens to events and processes them",
-	Run: func(cmd *cobra.Command, args []string) {
-		logger, err := bootstrap.CreateLogger(viper.GetString("statsd.addr"), viper.GetString("sentry.dsn"))
-		if err != nil {
-			log.Fatal(fmt.Printf("Cannot initialize logger: %v", err))
-		}
-		logger.Info("Logger successfully initialized")
-
-		storageFactory := db.StorageFactory{Config: viper.GetViper()}
-
-		logger.Info("Initializing skins repository")
-		skinsRepo, err := storageFactory.CreateFactory("redis").CreateSkinsRepository()
-		if err != nil {
-			logger.Emergency(fmt.Sprintf("Error on creating skins repo: %+v", err))
-			return
-		}
-		logger.Info("Skins repository successfully initialized")
-
-		logger.Info("Creating AMQP client")
-		amqpClient := bootstrap.CreateRabbitMQClient(&bootstrap.RabbitMQConfig{
-			Host:     viper.GetString("amqp.host"),
-			Port:     viper.GetInt("amqp.port"),
-			Username: viper.GetString("amqp.username"),
-			Password: viper.GetString("amqp.password"),
-			Vhost:    viper.GetString("amqp.vhost"),
-		})
-
-		accountsApi := (&accounts.Config{
-			Addr:   viper.GetString("api.accounts.host"),
-			Id:     viper.GetString("api.accounts.id"),
-			Secret: viper.GetString("api.accounts.secret"),
-			Scopes: viper.GetStringSlice("api.accounts.scopes"),
-		}).GetTokenWithAutoRefresh()
-
-		services := &worker.Services{
-			Logger:      logger,
-			AmqpClient:  amqpClient,
-			SkinsRepo:   skinsRepo,
-			AccountsAPI: accountsApi,
-		}
-
-		if err := services.Run(); err != nil {
-			logger.Error(fmt.Sprintf("Cannot initialize worker: %+v", err))
-		}
-	},
-}
-
-func init() {
-	RootCmd.AddCommand(amqpWorkerCmd)
-}
--- a/cmd/root.go
+++ b/cmd/root.go
@ -3,16 +3,18 @@ package cmd
 import (
 	"fmt"
 	"os"
+	"strings"
+
+	"github.com/elyby/chrly/bootstrap"

 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )

-var cfgFile string
-
 var RootCmd = &cobra.Command{
-	Use:   "",
-	Short: "Nothing here",
+	Use:     "chrly",
+	Short:   "Implementation of Minecraft skins system server",
+	Version: bootstrap.GetVersion(),
 }

 // Execute adds all child commands to the root command and sets flags appropriately.
@ -24,23 +26,12 @@ func Execute() {
 	}
 }

-func init() { 
+func init() {
 	cobra.OnInitialize(initConfig)
-	RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.test.yaml)")
 }

 func initConfig() {
-	if cfgFile != "" {
-		viper.SetConfigFile(cfgFile)
-	} else {
-		viper.SetConfigName("config")
-		viper.AddConfigPath("/etc/minecraft-skinsystem")
-		viper.AddConfigPath(".")
-	}
-
 	viper.AutomaticEnv()
-
-	if err := viper.ReadInConfig(); err == nil {
-		fmt.Println("Using config file:", viper.ConfigFileUsed())
-	}
+	replacer := strings.NewReplacer(".", "_")
+	viper.SetEnvKeyReplacer(replacer)
 }
--- a/cmd/serve.go
+++ b/cmd/serve.go
@ -4,17 +4,19 @@ import (
 	"fmt"
 	"log"

+	"github.com/elyby/chrly/auth"
+
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"

-	"elyby/minecraft-skinsystem/bootstrap"
-	"elyby/minecraft-skinsystem/db"
-	"elyby/minecraft-skinsystem/http"
+	"github.com/elyby/chrly/bootstrap"
+	"github.com/elyby/chrly/db"
+	"github.com/elyby/chrly/http"
 )

 var serveCmd = &cobra.Command{
 	Use:   "serve",
-	Short: "Runs the system server skins",
+	Short: "Starts http handler for the skins system",
 	Run: func(cmd *cobra.Command, args []string) {
 		logger, err := bootstrap.CreateLogger(viper.GetString("statsd.addr"), viper.GetString("sentry.dsn"))
 		if err != nil {
@ -42,9 +44,10 @@ var serveCmd = &cobra.Command{

 		cfg := &http.Config{
 			ListenSpec: fmt.Sprintf("%s:%d", viper.GetString("server.host"), viper.GetInt("server.port")),
-			SkinsRepo: skinsRepo,
-			CapesRepo: capesRepo,
-			Logger: logger,
+			SkinsRepo:  skinsRepo,
+			CapesRepo:  capesRepo,
+			Logger:     logger,
+			Auth:       &auth.JwtAuth{Key: []byte(viper.GetString("chrly.secret"))},
 		}

 		if err := cfg.Run(); err != nil {
@ -55,4 +58,11 @@ var serveCmd = &cobra.Command{

 func init() {
 	RootCmd.AddCommand(serveCmd)
+	viper.SetDefault("server.host", "")
+	viper.SetDefault("server.port", 80)
+	viper.SetDefault("storage.redis.host", "localhost")
+	viper.SetDefault("storage.redis.port", 6379)
+	viper.SetDefault("storage.redis.poll", 10)
+	viper.SetDefault("storage.filesystem.basePath", "data")
+	viper.SetDefault("storage.filesystem.capesDirName", "capes")
 }
--- a/cmd/token.go
+++ b/cmd/token.go
@ -0,0 +1,29 @@
+package cmd
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/elyby/chrly/auth"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+var tokenCmd = &cobra.Command{
+	Use:   "token",
+	Short: "Creates a new token, which allows to interact with Chrly API",
+	Run: func(cmd *cobra.Command, args []string) {
+		jwtAuth := &auth.JwtAuth{Key: []byte(viper.GetString("chrly.secret"))}
+		token, err := jwtAuth.NewToken(auth.SkinScope)
+		if err != nil {
+			log.Fatalf("Unable to create new token. The error is %v\n", err)
+		}
+
+		fmt.Printf("%s\n", token)
+	},
+}
+
+func init() {
+	RootCmd.AddCommand(tokenCmd)
+}
--- a/cmd/version.go
+++ b/cmd/version.go
@ -4,13 +4,13 @@ import (
 	"fmt"

 	"github.com/spf13/cobra"
-	"elyby/minecraft-skinsystem/bootstrap"
+	"github.com/elyby/chrly/bootstrap"
 	"runtime"
 )

 var versionCmd = &cobra.Command{
 	Use:   "version",
-	Short: "Show the Minecraft Skinsystem version information",
+	Short: "Show the Chrly version information",
 	Run: func(cmd *cobra.Command, args []string) {
 		fmt.Printf("Version:    %s\n",    bootstrap.GetVersion())
 		fmt.Printf("Go version: %s\n",    runtime.Version())
--- a/config.dist.yml
+++ b/config.dist.yml
@ -1,51 +0,0 @@
-# Main server configuration. Actually you don't want to change it,
-# but you able to change host or port, that will be used by serve command
-server:
-  host: localhost
-  port: 80
-
-# Worker listen to AMQP events, so it should know how to connect to any
-# AMQP provider (actually RabbitMQ). You should not escape any vhost
-# characters, 'cause it will be done by application automatically
-amqp:
-  host: localhost
-  port: 5672
-  username: amqp-user
-  password: amqp-password
-  vhost: /
-
-# Both of web or worker depends on storage.
-storage:
-  # For now app require Redis and don't support any other backends to store
-  # skins, but in the future we can have more backends. Poll size tune amount
-  # of connections to the redis. It's not recommended to set it less then 2
-  # because it will lead to panic on high load.
-  redis:
-    host: localhost
-    port: 6379
-    poolSize: 10
-
-  # Filesystem storage used to store capes. basePath specify absolute or relative
-  # path to storage and capesDirName specify which folder in this base path will
-  # be used to search capes.
-  filesystem:
-    basePath: data
-    capesDirName: capes
-
-# Accounts Ely.by internal API will be used in cases, when by some reasons
-# information about user will be unavailable in the app storage.
-api:
-  accounts:
-    host: https://account.ely.by
-    id: app-id
-    secret: secret
-    scopes:
-      - internal_account_info
-
-# StatsD can be used to collect metrics
-# statsd:
-#   addr: localhost:3746
-
-# Sentry can be used to collect app errors
-# sentry:
-#   dsn: "https://public:private@your.sentry.io/1"
--- a/db/factory.go
+++ b/db/factory.go
@ -3,7 +3,7 @@ package db
 import (
 	"github.com/spf13/viper"

-	"elyby/minecraft-skinsystem/interfaces"
+	"github.com/elyby/chrly/interfaces"
 )

 type StorageFactory struct {
--- a/db/filesystem.go
+++ b/db/filesystem.go
@ -5,8 +5,8 @@ import (
 	"path"
 	"strings"

-	"elyby/minecraft-skinsystem/interfaces"
-	"elyby/minecraft-skinsystem/model"
+	"github.com/elyby/chrly/interfaces"
+	"github.com/elyby/chrly/model"
 )

 type FilesystemFactory struct {
--- a/db/redis.go
+++ b/db/redis.go
@ -14,17 +14,19 @@ import (
 	"github.com/mediocregopher/radix.v2/redis"
 	"github.com/mediocregopher/radix.v2/util"

-	"elyby/minecraft-skinsystem/interfaces"
-	"elyby/minecraft-skinsystem/model"
+	"github.com/elyby/chrly/interfaces"
+	"github.com/elyby/chrly/model"
 )

 type RedisFactory struct {
 	Host       string
 	Port       int
 	PoolSize   int
-	connection util.Cmder
+	connection *pool.Pool
 }

+// TODO: maybe we should manually return connection to the pool?
+
 func (f RedisFactory) CreateSkinsRepository() (interfaces.SkinsRepository, error) {
 	connection, err := f.getConnection()
 	if err != nil {
@ -38,7 +40,7 @@ func (f RedisFactory) CreateCapesRepository() (interfaces.CapesRepository, error
 	panic("capes repository not supported for this storage type")
 }

-func (f RedisFactory) getConnection() (util.Cmder, error) {
+func (f RedisFactory) getConnection() (*pool.Pool, error) {
 	if f.connection == nil {
 		if f.Host == "" {
 			return nil, &ParamRequired{"host"}
@ -49,7 +51,7 @@ func (f RedisFactory) getConnection() (util.Cmder, error) {
 		}

 		addr := fmt.Sprintf("%s:%d", f.Host, f.Port)
-		conn, err := createConnection(addr, f.PoolSize)
+		conn, err := pool.New("tcp", addr, f.PoolSize)
 		if err != nil {
 			return nil, err
 		}
@ -66,7 +68,7 @@ func (f RedisFactory) getConnection() (util.Cmder, error) {
 				}

 				log.Println("Redis not pinged. Try to reconnect")
-				conn, err := createConnection(addr, f.PoolSize)
+				conn, err := pool.New("tcp", addr, f.PoolSize)
 				if err != nil {
 					log.Printf("Cannot reconnect to redis: %v\n", err)
 					log.Printf("Waiting %d seconds to retry\n", period)
@ -82,27 +84,44 @@ func (f RedisFactory) getConnection() (util.Cmder, error) {
 	return f.connection, nil
 }

-func createConnection(addr string, poolSize int) (util.Cmder, error) {
-	if poolSize > 1 {
-		return pool.New("tcp", addr, poolSize)
-	} else {
-		return redis.Dial("tcp", addr)
-	}
-}
-
 type redisDb struct {
-	conn util.Cmder
+	conn *pool.Pool
 }

-const accountIdToUsernameKey string = "hash:username-to-account-id"
+const accountIdToUsernameKey = "hash:username-to-account-id"

 func (db *redisDb) FindByUsername(username string) (*model.Skin, error) {
+	return findByUsername(username, db.getConn())
+}
+
+func (db *redisDb) FindByUserId(id int) (*model.Skin, error) {
+	return findByUserId(id, db.getConn())
+}
+
+func (db *redisDb) Save(skin *model.Skin) error {
+	return save(skin, db.getConn())
+}
+
+func (db *redisDb) RemoveByUserId(id int) error {
+	return removeByUserId(id, db.getConn())
+}
+
+func (db *redisDb) RemoveByUsername(username string) error {
+	return removeByUsername(username, db.getConn())
+}
+
+func (db *redisDb) getConn() util.Cmder {
+	conn, _ := db.conn.Get()
+	return conn
+}
+
+func findByUsername(username string, conn util.Cmder) (*model.Skin, error) {
 	if username == "" {
 		return nil, &SkinNotFoundError{username}
 	}

-	redisKey := buildKey(username)
-	response := db.conn.Cmd("GET", redisKey)
+	redisKey := buildUsernameKey(username)
+	response := conn.Cmd("GET", redisKey)
 	if response.IsType(redis.Nil) {
 		return nil, &SkinNotFoundError{username}
 	}
@ -128,37 +147,72 @@ func (db *redisDb) FindByUsername(username string) (*model.Skin, error) {
 	return skin, nil
 }

-func (db *redisDb) FindByUserId(id int) (*model.Skin, error) {
-	response := db.conn.Cmd("HGET", accountIdToUsernameKey, id)
+func findByUserId(id int, conn util.Cmder) (*model.Skin, error) {
+	response := conn.Cmd("HGET", accountIdToUsernameKey, id)
 	if response.IsType(redis.Nil) {
 		return nil, &SkinNotFoundError{"unknown"}
 	}

 	username, _ := response.Str()

-	return db.FindByUsername(username)
+	return findByUsername(username, conn)
 }

-func (db *redisDb) Save(skin *model.Skin) error {
-	conn := db.conn
-	if poolConn, isPool := conn.(*pool.Pool); isPool {
-		conn, _ = poolConn.Get()
+func removeByUserId(id int, conn util.Cmder) error {
+	record, err := findByUserId(id, conn)
+	if err != nil {
+		if _, ok := err.(*SkinNotFoundError); !ok {
+			return err
+		}
 	}

 	conn.Cmd("MULTI")

-	// Если пользователь сменил ник, то мы должны удать его ключ
-	if skin.OldUsername != "" && skin.OldUsername != skin.Username {
-		conn.Cmd("DEL", buildKey(skin.OldUsername))
+	conn.Cmd("HDEL", accountIdToUsernameKey, id)
+	if record != nil {
+		conn.Cmd("DEL", buildUsernameKey(record.Username))
 	}

-	// Если это новая запись или если пользователь сменил ник, то обновляем значение в хэш-таблице
+	conn.Cmd("EXEC")
+
+	return nil
+}
+
+func removeByUsername(username string, conn util.Cmder) error {
+	record, err := findByUsername(username, conn)
+	if err != nil {
+		if _, ok := err.(*SkinNotFoundError); !ok {
+			return err
+		}
+	}
+
+	conn.Cmd("MULTI")
+
+	conn.Cmd("DEL", buildUsernameKey(record.Username))
+	if record != nil {
+		conn.Cmd("HDEL", accountIdToUsernameKey, record.UserId)
+	}
+
+	conn.Cmd("EXEC")
+
+	return nil
+}
+
+func save(skin *model.Skin, conn util.Cmder) error {
+	conn.Cmd("MULTI")
+
+	// If user has changed username, then we must delete his old username record
+	if skin.OldUsername != "" && skin.OldUsername != skin.Username {
+		conn.Cmd("DEL", buildUsernameKey(skin.OldUsername))
+	}
+
+	// If this is a new record or if the user has changed username, we set the value in the hash table
 	if skin.OldUsername != "" || skin.OldUsername != skin.Username {
 		conn.Cmd("HSET", accountIdToUsernameKey, skin.UserId, skin.Username)
 	}

 	str, _ := json.Marshal(skin)
-	conn.Cmd("SET", buildKey(skin.Username), zlibEncode(str))
+	conn.Cmd("SET", buildUsernameKey(skin.Username), zlibEncode(str))

 	conn.Cmd("EXEC")

@ -167,11 +221,10 @@ func (db *redisDb) Save(skin *model.Skin) error {
 	return nil
 }

-func buildKey(username string) string {
+func buildUsernameKey(username string) string {
 	return "username:" + strings.ToLower(username)
 }

-//noinspection GoUnusedFunction
 func zlibEncode(str []byte) []byte {
 	var buff bytes.Buffer
 	writer := zlib.NewWriter(&buff)
--- a/docker-compose.dev.yml
+++ b/docker-compose.dev.yml
@ -0,0 +1,14 @@
+# This file can be used to start up necessary services.
+# Copy it into the docker-compose.yml:
+# > cp docker-compose.dev.yml docker-compose.yml
+# And then run it:
+# > docker-compose up -d
+
+version: '2'
+services:
+  redis:
+    image: redis:4.0-32bit
+    ports:
+      - "6379:6379"
+    volumes:
+      - ./data/redis:/data
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@ -0,0 +1,27 @@
+# This file can be used to run application in the production environment.
+# Copy it into the docker-compose.yml:
+# > cp docker-compose.prod.yml docker-compose.yml
+# And then run it:
+# > docker-compose up -d
+# Service will be listened at the http://localhost
+
+version: '2'
+services:
+  app:
+    image: elyby/chrly
+    hostname: chrly0
+    restart: always
+    links:
+      - redis
+    volumes:
+      - ./data/capes:/data/capes
+    ports:
+      - "80:80"
+    environment:
+      CHRLY_SECRET: replace_this_value_in_production
+
+  redis:
+    image: redis:4.0-32bit # 32-bit version is recommended to spare some memory
+    restart: always
+    volumes:
+      - ./data/redis:/data
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@ -0,0 +1,12 @@
+#!/bin/sh
+set -e
+
+if [ ! -d /data/capes ]; then
+    mkdir -p /data/capes
+fi
+
+if [ "$1" = "serve" ] || [ "$1" = "token" ] || [ "$1" = "version" ]; then
+    set -- /usr/local/bin/chrly "$@"
+fi
+
+exec "$@"
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@ -1,13 +0,0 @@
-FROM alpine:3.6
-
-RUN apk --update add ca-certificates \
- && update-ca-certificates \
- && rm -rf /var/cache/apk/*
-
-COPY docker/docker-entrypoint.sh /usr/local/bin/
-COPY docker/config.dist.yml /usr/local/etc/minecraft-skinsystem/
-
-COPY minecraft-skinsystem /usr/local/bin/
-
-ENTRYPOINT ["docker-entrypoint.sh"]
-CMD ["serve"]
--- a/docker/config.dist.yml
+++ b/docker/config.dist.yml
@ -1,51 +0,0 @@
-# Main server configuration. Actually you don't want to change it,
-# but you able to change host or port, that will be used by serve command
-server:
-  host: # leave host empty to allow Docker publish port
-  port: 80
-
-# Worker listen to AMQP events, so it should know how to connect to any
-# AMQP provider (actually RabbitMQ). You should not escape any vhost
-# characters, 'cause it will be done by application automatically
-amqp:
-  host: rabbitmq
-  port: 5672
-  username: minecraft-skinsystem-app
-  password: minecraft-skinsystem-app-password
-  vhost: /
-
-# Both of web or worker depends on storage.
-storage:
-  # For now app require Redis and don't support any other backends to store
-  # skins, but in the future we can have more backends. Poll size tune amount
-  # of connections to the redis. It's not recommended to set it less then 2
-  # because it will lead to panic on high load.
-  redis:
-    host: redis
-    port: 6379
-    poolSize: 10
-
-  # Filesystem storage used to store capes. basePath specify absolute or relative
-  # path to storage and capesDirName specify which folder in this base path will
-  # be used to search capes.
-  filesystem:
-    basePath: /data
-    capesDirName: capes
-
-# Accounts Ely.by internal API will be used in cases, when by some reasons
-# information about user will be unavailable in the app storage.
-api:
-  accounts:
-    host: https://account.ely.by
-    id: app-id
-    secret: secret
-    scopes:
-      - internal_account_info
-
-# StatsD can be used to collect metrics
-# statsd:
-#   addr: localhost:3746
-
-# Sentry can be used to collect app errors
-# sentry:
-#   dsn: https://public:private@your.sentry.io/1
--- a/docker/docker-compose.dev.yml
+++ b/docker/docker-compose.dev.yml
@ -1,46 +0,0 @@
-# This compose file contains necessary docker-compose config to quick start
-# services required by app. Ports published to host.
-#
-# Usage:
-# 1. Clone this file as docker-compose.yml:
-#    cp docker/docker-compose.dev.yml docker-compose.yml
-#
-# 2. If necessary, then you can fix configuration to your environment.
-#    Then start all services:
-#    docker-compose up -d
-#
-# 3. Pass to the project configuration links to this services:
-#    amqp:
-#      host: localhost
-#      port: 5672
-#      username: ely
-#      password: ely
-#      vhost: /ely
-#
-#    storage:
-#      redis:
-#        host: localhost
-#        port: 6379
-#        poolSize: 10
-#
-# 4. After job is done all services can be stopped:
-#    docker-compose stop
-
-version: '2'
-services:
-  redis:
-    image: redis:3.2-32bit
-    ports:
-      - "6379:6379"
-    volumes:
-      - ./data/redis:/data
-
-  rabbitmq:
-    image: rabbitmq:3.6-management-alpine
-    ports:
-      - "5672:5672"
-      - "15672:15672"
-    environment:
-      RABBITMQ_DEFAULT_USER: "ely"
-      RABBITMQ_DEFAULT_PASS: "ely"
-      RABBITMQ_DEFAULT_VHOST: "/ely"
--- a/docker/docker-compose.prod.yml
+++ b/docker/docker-compose.prod.yml
@ -1,36 +0,0 @@
-version: '2'
-services:
-  web:
-    image: registry.ely.by/elyby/skinsystem:latest
-    restart: always
-    ports:
-      - "80:80"
-    links:
-      - redis
-    volumes:
-      - ./data/capes:/data/capes
-      - ./config/minecraft-skinsystem:/etc/minecraft-skinsystem
-
-  worker:
-    image: registry.ely.by/elyby/skinsystem:latest
-    restart: always
-    links:
-      - redis
-      - rabbitmq
-    command: ["amqp-worker"]
-    volumes:
-      - ./config/minecraft-skinsystem:/etc/minecraft-skinsystem
-
-  redis:
-    image: redis:3.2-32bit # 32-bit version used to decrease memory usage
-    restart: always
-    volumes:
-      - ./data/redis:/data
-
-  rabbitmq:
-    image: rabbitmq:3.6-alpine
-    restart: always
-    environment:
-      RABBITMQ_DEFAULT_USER: minecraft-skinsystem-app
-      RABBITMQ_DEFAULT_PASS: minecraft-skinsystem-app-password
-      RABBITMQ_DEFAULT_VHOST: /
--- a/docker/docker-entrypoint.sh
+++ b/docker/docker-entrypoint.sh
@ -1,15 +0,0 @@
-#!/bin/sh
-set -e
-
-CONFIG="/etc/minecraft-skinsystem/config.yml"
-
-if [ ! -f "$CONFIG" ]; then
-    mkdir -p $(dirname "${CONFIG}")
-    cp /usr/local/etc/minecraft-skinsystem/config.dist.yml "$CONFIG"
-fi
-
-if [ "$1" = "serve" ] || [ "$1" = "amqp-worker" ]; then
-    set -- minecraft-skinsystem "$@"
-fi
-
-exec "$@"
--- a/http/api.go
+++ b/http/api.go
@ -0,0 +1,256 @@
+package http
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+	"regexp"
+	"strconv"
+
+	"github.com/elyby/chrly/auth"
+	"github.com/elyby/chrly/db"
+	"github.com/elyby/chrly/interfaces"
+	"github.com/elyby/chrly/model"
+
+	"github.com/gorilla/mux"
+	"github.com/mono83/slf/wd"
+	"github.com/thedevsaddam/govalidator"
+)
+
+func init() {
+	govalidator.AddCustomRule("md5", func(field string, rule string, message string, value interface{}) error {
+		val := []byte(value.(string))
+		if ok, _ := regexp.Match(`^[a-f0-9]{32}$`, val); !ok {
+			if message == "" {
+				message = fmt.Sprintf("The %s field must be a valid md5 hash", field)
+			}
+
+			return errors.New(message)
+		}
+
+		return nil
+	})
+
+	govalidator.AddCustomRule("skinUploadingNotAvailable", func(field string, rule string, message string, value interface{}) error {
+		if message == "" {
+			message = "Skin uploading is temporary unavailable"
+		}
+
+		return errors.New(message)
+	})
+}
+
+func (cfg *Config) PostSkin(resp http.ResponseWriter, req *http.Request) {
+	cfg.Logger.IncCounter("api.skins.post.request", 1)
+	validationErrors := validatePostSkinRequest(req)
+	if validationErrors != nil {
+		cfg.Logger.IncCounter("api.skins.post.validation_failed", 1)
+		apiBadRequest(resp, validationErrors)
+		return
+	}
+
+	identityId, _ := strconv.Atoi(req.Form.Get("identityId"))
+	username := req.Form.Get("username")
+
+	record, err := findIdentity(cfg.SkinsRepo, identityId, username)
+	if err != nil {
+		cfg.Logger.Error("Error on requesting a skin from the repository: :err", wd.ErrParam(err))
+		apiServerError(resp)
+		return
+	}
+
+	skinId, _ := strconv.Atoi(req.Form.Get("skinId"))
+	is18, _ := strconv.ParseBool(req.Form.Get("is1_8"))
+	isSlim, _ := strconv.ParseBool(req.Form.Get("isSlim"))
+
+	record.Uuid = req.Form.Get("uuid")
+	record.SkinId = skinId
+	record.Hash = req.Form.Get("hash")
+	record.Is1_8 = is18
+	record.IsSlim = isSlim
+	record.Url = req.Form.Get("url")
+	record.MojangTextures = req.Form.Get("mojangTextures")
+	record.MojangSignature = req.Form.Get("mojangSignature")
+
+	err = cfg.SkinsRepo.Save(record)
+	if err != nil {
+		cfg.Logger.Error("Unable to save record to the repository: :err", wd.ErrParam(err))
+		apiServerError(resp)
+		return
+	}
+
+	cfg.Logger.IncCounter("api.skins.post.success", 1)
+	resp.WriteHeader(http.StatusCreated)
+}
+
+func (cfg *Config) DeleteSkinByUserId(resp http.ResponseWriter, req *http.Request) {
+	cfg.Logger.IncCounter("api.skins.delete.request", 1)
+	id, _ := strconv.Atoi(mux.Vars(req)["id"])
+	skin, err := cfg.SkinsRepo.FindByUserId(id)
+	if err != nil {
+		cfg.Logger.IncCounter("api.skins.delete.not_found", 1)
+		apiNotFound(resp, "Cannot find record for requested user id")
+		return
+	}
+
+	cfg.deleteSkin(skin, resp)
+}
+
+func (cfg *Config) DeleteSkinByUsername(resp http.ResponseWriter, req *http.Request) {
+	cfg.Logger.IncCounter("api.skins.delete.request", 1)
+	username := mux.Vars(req)["username"]
+	skin, err := cfg.SkinsRepo.FindByUsername(username)
+	if err != nil {
+		cfg.Logger.IncCounter("api.skins.delete.not_found", 1)
+		apiNotFound(resp, "Cannot find record for requested username")
+		return
+	}
+
+	cfg.deleteSkin(skin, resp)
+}
+
+func (cfg *Config) Authenticate(handler http.Handler) http.Handler {
+	return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
+		cfg.Logger.IncCounter("authentication.challenge", 1)
+		err := cfg.Auth.Check(req)
+		if err != nil {
+			if _, ok := err.(*auth.Unauthorized); ok {
+				cfg.Logger.IncCounter("authentication.failed", 1)
+				apiForbidden(resp, err.Error())
+			} else {
+				cfg.Logger.Error("Unknown error on validating api request: :err", wd.ErrParam(err))
+				apiServerError(resp)
+			}
+
+			return
+		}
+
+		cfg.Logger.IncCounter("authentication.success", 1)
+		handler.ServeHTTP(resp, req)
+	})
+}
+
+func (cfg *Config) deleteSkin(skin *model.Skin, resp http.ResponseWriter) {
+	err := cfg.SkinsRepo.RemoveByUserId(skin.UserId)
+	if err != nil {
+		cfg.Logger.Error("Cannot delete skin by error: :err", wd.ErrParam(err))
+		apiServerError(resp)
+		return
+	}
+
+	cfg.Logger.IncCounter("api.skins.delete.success", 1)
+	resp.WriteHeader(http.StatusNoContent)
+}
+
+func validatePostSkinRequest(request *http.Request) map[string][]string {
+	const maxMultipartMemory int64 = 32 << 20
+	const oneOfSkinOrUrlMessage = "One of url or skin should be provided, but not both"
+
+	request.ParseMultipartForm(maxMultipartMemory)
+
+	validationRules := govalidator.MapData{
+		"identityId": {"required", "numeric", "min:1"},
+		"username":   {"required"},
+		"uuid":       {"required", "uuid"},
+		"skinId":     {"required", "numeric", "min:1"},
+		"url":        {"url"},
+		"file:skin":  {"ext:png", "size:24576", "mime:image/png"},
+		"hash":       {"md5"},
+		"is1_8":      {"bool"},
+		"isSlim":     {"bool"},
+	}
+
+	shouldAppendSkinRequiredError := false
+	url := request.Form.Get("url")
+	_, _, skinErr := request.FormFile("skin")
+	if (url != "" && skinErr == nil) || (url == "" && skinErr != nil) {
+		shouldAppendSkinRequiredError = true
+	} else if skinErr == nil {
+		validationRules["file:skin"] = append(validationRules["file:skin"], "skinUploadingNotAvailable")
+	} else if url != "" {
+		validationRules["hash"] = append(validationRules["hash"], "required")
+		validationRules["is1_8"] = append(validationRules["is1_8"], "required")
+		validationRules["isSlim"] = append(validationRules["isSlim"], "required")
+	}
+
+	mojangTextures := request.Form.Get("mojangTextures")
+	if mojangTextures != "" {
+		validationRules["mojangSignature"] = []string{"required"}
+	}
+
+	validator := govalidator.New(govalidator.Options{
+		Request:         request,
+		Rules:           validationRules,
+		RequiredDefault: false,
+		FormSize:        maxMultipartMemory,
+	})
+	validationResults := validator.Validate()
+	if shouldAppendSkinRequiredError {
+		validationResults["url"] = append(validationResults["url"], oneOfSkinOrUrlMessage)
+		validationResults["skin"] = append(validationResults["skin"], oneOfSkinOrUrlMessage)
+	}
+
+	if len(validationResults) != 0 {
+		return validationResults
+	}
+
+	return nil
+}
+
+func findIdentity(repo interfaces.SkinsRepository, identityId int, username string) (*model.Skin, error) {
+	var record *model.Skin
+	record, err := repo.FindByUserId(identityId)
+	if err != nil {
+		if _, isSkinNotFound := err.(*db.SkinNotFoundError); !isSkinNotFound {
+			return nil, err
+		}
+
+		record, err = repo.FindByUsername(username)
+		if err == nil {
+			repo.RemoveByUsername(username)
+			record.UserId = identityId
+		} else {
+			record = &model.Skin{
+				UserId:   identityId,
+				Username: username,
+			}
+		}
+	} else if record.Username != username {
+		repo.RemoveByUserId(identityId)
+		record.Username = username
+	}
+
+	return record, nil
+}
+
+func apiBadRequest(resp http.ResponseWriter, errorsPerField map[string][]string) {
+	resp.WriteHeader(http.StatusBadRequest)
+	resp.Header().Set("Content-Type", "application/json")
+	result, _ := json.Marshal(map[string]interface{}{
+		"errors": errorsPerField,
+	})
+	resp.Write(result)
+}
+
+func apiForbidden(resp http.ResponseWriter, reason string) {
+	resp.WriteHeader(http.StatusForbidden)
+	resp.Header().Set("Content-Type", "application/json")
+	result, _ := json.Marshal(map[string]interface{}{
+		"error": reason,
+	})
+	resp.Write(result)
+}
+
+func apiNotFound(resp http.ResponseWriter, reason string) {
+	resp.WriteHeader(http.StatusNotFound)
+	resp.Header().Set("Content-Type", "application/json")
+	result, _ := json.Marshal([]interface{}{
+		reason,
+	})
+	resp.Write(result)
+}
+
+func apiServerError(resp http.ResponseWriter) {
+	resp.WriteHeader(http.StatusInternalServerError)
+}
--- a/http/api_test.go
+++ b/http/api_test.go
@ -0,0 +1,505 @@
+package http
+
+import (
+	"bytes"
+	"encoding/base64"
+	"io/ioutil"
+	"mime/multipart"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+
+	"github.com/elyby/chrly/auth"
+	"github.com/elyby/chrly/db"
+
+	"github.com/golang/mock/gomock"
+	testify "github.com/stretchr/testify/assert"
+)
+
+func TestConfig_PostSkin_Valid(t *testing.T) {
+	assert := testify.New(t)
+
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	config, mocks := setupMocks(ctrl)
+
+	resultModel := createSkinModel("mock_user", false)
+	resultModel.SkinId = 5
+	resultModel.Hash = "94a457d92a61460cb9cb5d6f29732d2a"
+	resultModel.Url = "http://ely.by/minecraft/skins/default.png"
+	resultModel.MojangTextures = ""
+	resultModel.MojangSignature = ""
+
+	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+	mocks.Skins.EXPECT().FindByUserId(1).Return(createSkinModel("mock_user", false), nil)
+	mocks.Skins.EXPECT().Save(resultModel).Return(nil)
+	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.post.success", int64(1))
+
+	form := url.Values{
+		"identityId": {"1"},
+		"username":   {"mock_user"},
+		"uuid":       {"0f657aa8-bfbe-415d-b700-5750090d3af3"},
+		"skinId":     {"5"},
+		"hash":       {"94a457d92a61460cb9cb5d6f29732d2a"},
+		"is1_8":      {"0"},
+		"isSlim":     {"0"},
+		"url":        {"http://ely.by/minecraft/skins/default.png"},
+	}
+
+	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", bytes.NewBufferString(form.Encode()))
+	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+	w := httptest.NewRecorder()
+
+	config.CreateHandler().ServeHTTP(w, req)
+
+	resp := w.Result()
+	defer resp.Body.Close()
+	assert.Equal(201, resp.StatusCode)
+	response, _ := ioutil.ReadAll(resp.Body)
+	assert.Empty(response)
+}
+
+func TestConfig_PostSkin_ChangedIdentityId(t *testing.T) {
+	assert := testify.New(t)
+
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	config, mocks := setupMocks(ctrl)
+
+	resultModel := createSkinModel("mock_user", false)
+	resultModel.UserId = 2
+	resultModel.SkinId = 5
+	resultModel.Hash = "94a457d92a61460cb9cb5d6f29732d2a"
+	resultModel.Url = "http://ely.by/minecraft/skins/default.png"
+	resultModel.MojangTextures = ""
+	resultModel.MojangSignature = ""
+
+	form := url.Values{
+		"identityId": {"2"},
+		"username":   {"mock_user"},
+		"uuid":       {"0f657aa8-bfbe-415d-b700-5750090d3af3"},
+		"skinId":     {"5"},
+		"hash":       {"94a457d92a61460cb9cb5d6f29732d2a"},
+		"is1_8":      {"0"},
+		"isSlim":     {"0"},
+		"url":        {"http://ely.by/minecraft/skins/default.png"},
+	}
+
+	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", bytes.NewBufferString(form.Encode()))
+	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+	w := httptest.NewRecorder()
+
+	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+	mocks.Skins.EXPECT().FindByUserId(2).Return(nil, &db.SkinNotFoundError{"unknown"})
+	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
+	mocks.Skins.EXPECT().RemoveByUsername("mock_user").Return(nil)
+	mocks.Skins.EXPECT().Save(resultModel).Return(nil)
+	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.post.success", int64(1))
+
+	config.CreateHandler().ServeHTTP(w, req)
+
+	resp := w.Result()
+	defer resp.Body.Close()
+	assert.Equal(201, resp.StatusCode)
+	response, _ := ioutil.ReadAll(resp.Body)
+	assert.Empty(response)
+}
+
+func TestConfig_PostSkin_ChangedUsername(t *testing.T) {
+	assert := testify.New(t)
+
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	config, mocks := setupMocks(ctrl)
+
+	resultModel := createSkinModel("changed_username", false)
+	resultModel.SkinId = 5
+	resultModel.Hash = "94a457d92a61460cb9cb5d6f29732d2a"
+	resultModel.Url = "http://ely.by/minecraft/skins/default.png"
+	resultModel.MojangTextures = ""
+	resultModel.MojangSignature = ""
+
+	form := url.Values{
+		"identityId": {"1"},
+		"username":   {"changed_username"},
+		"uuid":       {"0f657aa8-bfbe-415d-b700-5750090d3af3"},
+		"skinId":     {"5"},
+		"hash":       {"94a457d92a61460cb9cb5d6f29732d2a"},
+		"is1_8":      {"0"},
+		"isSlim":     {"0"},
+		"url":        {"http://ely.by/minecraft/skins/default.png"},
+	}
+
+	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", bytes.NewBufferString(form.Encode()))
+	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+	w := httptest.NewRecorder()
+
+	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+	mocks.Skins.EXPECT().FindByUserId(1).Return(createSkinModel("mock_user", false), nil)
+	mocks.Skins.EXPECT().RemoveByUserId(1).Return(nil)
+	mocks.Skins.EXPECT().Save(resultModel).Return(nil)
+	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.post.success", int64(1))
+
+	config.CreateHandler().ServeHTTP(w, req)
+
+	resp := w.Result()
+	defer resp.Body.Close()
+	assert.Equal(201, resp.StatusCode)
+	response, _ := ioutil.ReadAll(resp.Body)
+	assert.Empty(response)
+}
+
+func TestConfig_PostSkin_CompletelyNewIdentity(t *testing.T) {
+	assert := testify.New(t)
+
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	config, mocks := setupMocks(ctrl)
+
+	resultModel := createSkinModel("mock_user", false)
+	resultModel.SkinId = 5
+	resultModel.Hash = "94a457d92a61460cb9cb5d6f29732d2a"
+	resultModel.Url = "http://ely.by/minecraft/skins/default.png"
+	resultModel.MojangTextures = ""
+	resultModel.MojangSignature = ""
+
+	form := url.Values{
+		"identityId": {"1"},
+		"username":   {"mock_user"},
+		"uuid":       {"0f657aa8-bfbe-415d-b700-5750090d3af3"},
+		"skinId":     {"5"},
+		"hash":       {"94a457d92a61460cb9cb5d6f29732d2a"},
+		"is1_8":      {"0"},
+		"isSlim":     {"0"},
+		"url":        {"http://ely.by/minecraft/skins/default.png"},
+	}
+
+	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", bytes.NewBufferString(form.Encode()))
+	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+	w := httptest.NewRecorder()
+
+	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+	mocks.Skins.EXPECT().FindByUserId(1).Return(nil, &db.SkinNotFoundError{"unknown"})
+	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(nil, &db.SkinNotFoundError{"mock_user"})
+	mocks.Skins.EXPECT().Save(resultModel).Return(nil)
+	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.post.success", int64(1))
+
+	config.CreateHandler().ServeHTTP(w, req)
+
+	resp := w.Result()
+	defer resp.Body.Close()
+	assert.Equal(201, resp.StatusCode)
+	response, _ := ioutil.ReadAll(resp.Body)
+	assert.Empty(response)
+}
+
+func TestConfig_PostSkin_UploadSkin(t *testing.T) {
+	assert := testify.New(t)
+
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	config, mocks := setupMocks(ctrl)
+
+	body := &bytes.Buffer{}
+	writer := multipart.NewWriter(body)
+
+	part, _ := writer.CreateFormFile("skin", "char.png")
+	part.Write(loadSkinFile())
+
+	_ = writer.WriteField("identityId", "1")
+	_ = writer.WriteField("username", "mock_user")
+	_ = writer.WriteField("uuid", "0f657aa8-bfbe-415d-b700-5750090d3af3")
+	_ = writer.WriteField("skinId", "5")
+
+	err := writer.Close()
+	if err != nil {
+		panic(err)
+	}
+
+	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", body)
+	req.Header.Add("Content-Type", writer.FormDataContentType())
+	w := httptest.NewRecorder()
+
+	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.post.validation_failed", int64(1))
+
+	config.CreateHandler().ServeHTTP(w, req)
+
+	resp := w.Result()
+	defer resp.Body.Close()
+	assert.Equal(400, resp.StatusCode)
+	response, _ := ioutil.ReadAll(resp.Body)
+	assert.JSONEq(`{
+		"errors": {
+			"skin": [
+			    "Skin uploading is temporary unavailable"
+			]
+		}
+	}`, string(response))
+}
+
+func TestConfig_PostSkin_RequiredFields(t *testing.T) {
+	assert := testify.New(t)
+
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	config, mocks := setupMocks(ctrl)
+
+	form := url.Values{
+		"hash":           {"this is not md5"},
+		"mojangTextures": {"someBase64EncodedString"},
+	}
+
+	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", bytes.NewBufferString(form.Encode()))
+	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+	w := httptest.NewRecorder()
+
+	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.post.validation_failed", int64(1))
+
+	config.CreateHandler().ServeHTTP(w, req)
+
+	resp := w.Result()
+	defer resp.Body.Close()
+	assert.Equal(400, resp.StatusCode)
+	response, _ := ioutil.ReadAll(resp.Body)
+	assert.JSONEq(`{
+		"errors": {
+			"identityId": [
+			    "The identityId field is required",
+				"The identityId field must be numeric",
+				"The identityId field must be minimum 1 char"
+			],
+            "skinId": [
+				"The skinId field is required",
+				"The skinId field must be numeric",
+				"The skinId field must be minimum 1 char"
+			],
+			"username": [
+				"The username field is required"
+			],
+			"uuid": [
+				"The uuid field is required",
+				"The uuid field must contain valid UUID"
+			],
+			"hash": [
+				"The hash field must be a valid md5 hash"
+			],
+			"url": [
+				"One of url or skin should be provided, but not both"
+			],
+			"skin": [
+				"One of url or skin should be provided, but not both"
+			],
+			"mojangSignature": [
+				"The mojangSignature field is required"
+			]
+		}
+	}`, string(response))
+}
+
+func TestConfig_PostSkin_Unauthorized(t *testing.T) {
+	assert := testify.New(t)
+
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	config, mocks := setupMocks(ctrl)
+
+	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", nil)
+	req.Header.Add("Authorization", "Bearer invalid.jwt.token")
+	w := httptest.NewRecorder()
+
+	mocks.Auth.EXPECT().Check(gomock.Any()).Return(&auth.Unauthorized{"Cannot parse passed JWT token"})
+	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+	mocks.Log.EXPECT().IncCounter("authentication.failed", int64(1))
+
+	config.CreateHandler().ServeHTTP(w, req)
+
+	resp := w.Result()
+	defer resp.Body.Close()
+	assert.Equal(403, resp.StatusCode)
+	response, _ := ioutil.ReadAll(resp.Body)
+	assert.JSONEq(`{
+		"error": "Cannot parse passed JWT token"
+	}`, string(response))
+}
+
+func TestConfig_DeleteSkinByUserId_Success(t *testing.T) {
+	assert := testify.New(t)
+
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	config, mocks := setupMocks(ctrl)
+
+	req := httptest.NewRequest("DELETE", "http://skinsystem.ely.by/api/skins/id:1", nil)
+	w := httptest.NewRecorder()
+
+	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+	mocks.Skins.EXPECT().FindByUserId(1).Return(createSkinModel("mock_user", false), nil)
+	mocks.Skins.EXPECT().RemoveByUserId(1).Return(nil)
+	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.delete.request", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.delete.success", int64(1))
+
+	config.CreateHandler().ServeHTTP(w, req)
+
+	resp := w.Result()
+	defer resp.Body.Close()
+	assert.Equal(204, resp.StatusCode)
+	response, _ := ioutil.ReadAll(resp.Body)
+	assert.Empty(response)
+}
+
+func TestConfig_DeleteSkinByUserId_NotFound(t *testing.T) {
+	assert := testify.New(t)
+
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	config, mocks := setupMocks(ctrl)
+
+	req := httptest.NewRequest("DELETE", "http://skinsystem.ely.by/api/skins/id:2", nil)
+	w := httptest.NewRecorder()
+
+	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+	mocks.Skins.EXPECT().FindByUserId(2).Return(nil, &db.SkinNotFoundError{"unknown"})
+	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.delete.request", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.delete.not_found", int64(1))
+
+	config.CreateHandler().ServeHTTP(w, req)
+
+	resp := w.Result()
+	defer resp.Body.Close()
+	assert.Equal(404, resp.StatusCode)
+	response, _ := ioutil.ReadAll(resp.Body)
+	assert.JSONEq(`[
+		"Cannot find record for requested user id"
+	]`, string(response))
+}
+
+func TestConfig_DeleteSkinByUsername_Success(t *testing.T) {
+	assert := testify.New(t)
+
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	config, mocks := setupMocks(ctrl)
+
+	req := httptest.NewRequest("DELETE", "http://skinsystem.ely.by/api/skins/mock_user", nil)
+	w := httptest.NewRecorder()
+
+	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
+	mocks.Skins.EXPECT().RemoveByUserId(1).Return(nil)
+	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.delete.request", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.delete.success", int64(1))
+
+	config.CreateHandler().ServeHTTP(w, req)
+
+	resp := w.Result()
+	defer resp.Body.Close()
+	assert.Equal(204, resp.StatusCode)
+	response, _ := ioutil.ReadAll(resp.Body)
+	assert.Empty(response)
+}
+
+func TestConfig_DeleteSkinByUsername_NotFound(t *testing.T) {
+	assert := testify.New(t)
+
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	config, mocks := setupMocks(ctrl)
+
+	req := httptest.NewRequest("DELETE", "http://skinsystem.ely.by/api/skins/mock_user_2", nil)
+	w := httptest.NewRecorder()
+
+	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+	mocks.Skins.EXPECT().FindByUsername("mock_user_2").Return(nil, &db.SkinNotFoundError{"mock_user_2"})
+	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.delete.request", int64(1))
+	mocks.Log.EXPECT().IncCounter("api.skins.delete.not_found", int64(1))
+
+	config.CreateHandler().ServeHTTP(w, req)
+
+	resp := w.Result()
+	defer resp.Body.Close()
+	assert.Equal(404, resp.StatusCode)
+	response, _ := ioutil.ReadAll(resp.Body)
+	assert.JSONEq(`[
+		"Cannot find record for requested username"
+	]`, string(response))
+}
+
+func TestConfig_Authenticate_SignatureKeyNotSet(t *testing.T) {
+	assert := testify.New(t)
+
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	config, mocks := setupMocks(ctrl)
+
+	req := httptest.NewRequest("POST", "http://localhost", nil)
+	w := httptest.NewRecorder()
+
+	mocks.Auth.EXPECT().Check(gomock.Any()).Return(&auth.Unauthorized{"signing key not available"})
+	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+	mocks.Log.EXPECT().IncCounter("authentication.failed", int64(1))
+
+	res := config.Authenticate(http.HandlerFunc(func (resp http.ResponseWriter, req *http.Request) {}))
+	res.ServeHTTP(w, req)
+
+	resp := w.Result()
+	defer resp.Body.Close()
+	assert.Equal(403, resp.StatusCode)
+	response, _ := ioutil.ReadAll(resp.Body)
+	assert.JSONEq(`{
+		"error": "signing key not available"
+	}`, string(response))
+}
+
+// base64 https://github.com/mathiasbynens/small/blob/0ca3c51/png-transparent.png
+var OnePxPng = []byte("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAACklEQVR4nGMAAQAABQABDQottAAAAABJRU5ErkJggg==")
+
+func loadSkinFile() []byte {
+	result := make([]byte, 92)
+	_, err := base64.StdEncoding.Decode(result, OnePxPng)
+	if err != nil {
+		panic(err)
+	}
+
+	return result
+}
--- a/http/cape_test.go
+++ b/http/cape_test.go
@ -11,8 +11,8 @@ import (
 	"github.com/golang/mock/gomock"
 	testify "github.com/stretchr/testify/assert"

-	"elyby/minecraft-skinsystem/db"
-	"elyby/minecraft-skinsystem/model"
+	"github.com/elyby/chrly/db"
+	"github.com/elyby/chrly/model"
 )

 func TestConfig_Cape(t *testing.T) {
@ -21,14 +21,14 @@ func TestConfig_Cape(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, _, capesRepo, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

 	cape := createCape()

-	capesRepo.EXPECT().FindByUsername("mocked_username").Return(&model.Cape{
+	mocks.Capes.EXPECT().FindByUsername("mocked_username").Return(&model.Cape{
 		File: bytes.NewReader(cape),
 	}, nil)
-	wd.EXPECT().IncCounter("capes.request", int64(1))
+	mocks.Log.EXPECT().IncCounter("capes.request", int64(1))

 	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/cloaks/mocked_username", nil)
 	w := httptest.NewRecorder()
@ -48,10 +48,10 @@ func TestConfig_Cape2(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, _, capesRepo, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

-	capesRepo.EXPECT().FindByUsername("notch").Return(nil, &db.CapeNotFoundError{"notch"})
-	wd.EXPECT().IncCounter("capes.request", int64(1))
+	mocks.Capes.EXPECT().FindByUsername("notch").Return(nil, &db.CapeNotFoundError{"notch"})
+	mocks.Log.EXPECT().IncCounter("capes.request", int64(1))

 	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/cloaks/notch", nil)
 	w := httptest.NewRecorder()
@ -69,15 +69,15 @@ func TestConfig_CapeGET(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, _, capesRepo, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

 	cape := createCape()

-	capesRepo.EXPECT().FindByUsername("mocked_username").Return(&model.Cape{
+	mocks.Capes.EXPECT().FindByUsername("mocked_username").Return(&model.Cape{
 		File: bytes.NewReader(cape),
 	}, nil)
-	wd.EXPECT().IncCounter("capes.request", int64(1)).Times(0)
-	wd.EXPECT().IncCounter("capes.get_request", int64(1))
+	mocks.Log.EXPECT().IncCounter("capes.request", int64(1)).Times(0)
+	mocks.Log.EXPECT().IncCounter("capes.get_request", int64(1))

 	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/cloaks?name=mocked_username", nil)
 	w := httptest.NewRecorder()
@ -97,11 +97,11 @@ func TestConfig_CapeGET2(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, _, capesRepo, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

-	capesRepo.EXPECT().FindByUsername("notch").Return(nil, &db.CapeNotFoundError{"notch"})
-	wd.EXPECT().IncCounter("capes.request", int64(1)).Times(0)
-	wd.EXPECT().IncCounter("capes.get_request", int64(1))
+	mocks.Capes.EXPECT().FindByUsername("notch").Return(nil, &db.CapeNotFoundError{"notch"})
+	mocks.Log.EXPECT().IncCounter("capes.request", int64(1)).Times(0)
+	mocks.Log.EXPECT().IncCounter("capes.get_request", int64(1))

 	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/cloaks?name=notch", nil)
 	w := httptest.NewRecorder()
--- a/http/face.go
+++ b/http/face.go
@ -1,27 +0,0 @@
-package http
-
-import (
-	"net/http"
-
-	"github.com/gorilla/mux"
-)
-
-const defaultHash = "default"
-
-func (cfg *Config) Face(response http.ResponseWriter, request *http.Request) {
-	cfg.Logger.IncCounter("faces.request", 1)
-	username := parseUsername(mux.Vars(request)["username"])
-	rec, err := cfg.SkinsRepo.FindByUsername(username)
-	var hash string
-	if err != nil || rec.SkinId == 0 {
-		hash = defaultHash
-	} else {
-		hash = rec.Hash
-	}
-
-	http.Redirect(response, request, buildElyUrl(buildFaceUrl(hash)), 301)
-}
-
-func buildFaceUrl(hash string) string {
-	return "/minecraft/skin_buffer/faces/" + hash + ".png"
-}
--- a/http/face_test.go
+++ b/http/face_test.go
@ -1,53 +0,0 @@
-package http
-
-import (
-	"net/http/httptest"
-	"testing"
-
-	"github.com/golang/mock/gomock"
-	testify "github.com/stretchr/testify/assert"
-
-	"elyby/minecraft-skinsystem/db"
-)
-
-func TestConfig_Face(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, skinsRepo, _, wd := setupMocks(ctrl)
-
-	skinsRepo.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
-	wd.EXPECT().IncCounter("faces.request", int64(1))
-
-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/skins/mock_user/face.png", nil)
-	w := httptest.NewRecorder()
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	assert.Equal(301, resp.StatusCode)
-	assert.Equal("http://ely.by/minecraft/skin_buffer/faces/55d2a8848764f5ff04012cdb093458bd.png", resp.Header.Get("Location"))
-}
-
-func TestConfig_Face2(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, skinsRepo, _, wd := setupMocks(ctrl)
-
-	skinsRepo.EXPECT().FindByUsername("mock_user").Return(nil, &db.SkinNotFoundError{"mock_user"})
-	wd.EXPECT().IncCounter("faces.request", int64(1))
-
-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/skins/mock_user/face.png", nil)
-	w := httptest.NewRecorder()
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	assert.Equal(301, resp.StatusCode)
-	assert.Equal("http://ely.by/minecraft/skin_buffer/faces/default.png", resp.Header.Get("Location"))
-}
--- a/http/http.go
+++ b/http/http.go
@ -13,7 +13,7 @@ import (
 	"github.com/gorilla/mux"
 	"github.com/mono83/slf/wd"

-	"elyby/minecraft-skinsystem/interfaces"
+	"github.com/elyby/chrly/interfaces"
 )

 type Config struct {
@ -22,6 +22,7 @@ type Config struct {
 	SkinsRepo interfaces.SkinsRepository
 	CapesRepo interfaces.CapesRepository
 	Logger    wd.Watchdog
+	Auth      interfaces.AuthChecker
 }

 func (cfg *Config) Run() error {
@ -54,11 +55,13 @@ func (cfg *Config) CreateHandler() http.Handler {
 	router.HandleFunc("/cloaks/{username}", cfg.Cape).Methods("GET").Name("cloaks")
 	router.HandleFunc("/textures/{username}", cfg.Textures).Methods("GET")
 	router.HandleFunc("/textures/signed/{username}", cfg.SignedTextures).Methods("GET")
-	router.HandleFunc("/skins/{username}/face", cfg.Face).Methods("GET")
-	router.HandleFunc("/skins/{username}/face.png", cfg.Face).Methods("GET")
 	// Legacy
 	router.HandleFunc("/skins", cfg.SkinGET).Methods("GET")
 	router.HandleFunc("/cloaks", cfg.CapeGET).Methods("GET")
+	// API
+	router.Handle("/api/skins", cfg.Authenticate(http.HandlerFunc(cfg.PostSkin))).Methods("POST")
+	router.Handle("/api/skins/id:{id:[0-9]+}", cfg.Authenticate(http.HandlerFunc(cfg.DeleteSkinByUserId))).Methods("DELETE")
+	router.Handle("/api/skins/{username}", cfg.Authenticate(http.HandlerFunc(cfg.DeleteSkinByUsername))).Methods("DELETE")
 	// 404
 	router.NotFoundHandler = http.HandlerFunc(cfg.NotFound)

@ -74,15 +77,6 @@ func parseUsername(username string) string {
 	return username
 }

-func buildElyUrl(route string) string {
-	prefix := "http://ely.by"
-	if !strings.HasPrefix(route, prefix) {
-		route = prefix + route
-	}
-
-	return route
-}
-
 func waitForSignal() os.Signal {
 	ch := make(chan os.Signal)
 	signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM)
--- a/http/http_test.go
+++ b/http/http_test.go
@ -6,8 +6,8 @@ import (
 	"github.com/golang/mock/gomock"
 	testify "github.com/stretchr/testify/assert"

-	"elyby/minecraft-skinsystem/interfaces/mock_interfaces"
-	"elyby/minecraft-skinsystem/interfaces/mock_wd"
+	"github.com/elyby/chrly/interfaces/mock_interfaces"
+	"github.com/elyby/chrly/interfaces/mock_wd"
 )

 func TestParseUsername(t *testing.T) {
@ -16,25 +16,31 @@ func TestParseUsername(t *testing.T) {
 	assert.Equal("test", parseUsername("test"), "Function should return string itself, if it not contains .png at end")
 }

-func TestBuildElyUrl(t *testing.T) {
-	assert := testify.New(t)
-	assert.Equal("http://ely.by/route", buildElyUrl("/route"), "Function should add prefix to the provided relative url.")
-	assert.Equal("http://ely.by/test/route", buildElyUrl("http://ely.by/test/route"), "Function should do not add prefix to the provided prefixed url.")
+type mocks struct {
+	Skins *mock_interfaces.MockSkinsRepository
+	Capes *mock_interfaces.MockCapesRepository
+	Auth  *mock_interfaces.MockAuthChecker
+	Log   *mock_wd.MockWatchdog
 }

 func setupMocks(ctrl *gomock.Controller) (
 	*Config,
-	*mock_interfaces.MockSkinsRepository,
-	*mock_interfaces.MockCapesRepository,
-	*mock_wd.MockWatchdog,
+	*mocks,
 ) {
 	skinsRepo := mock_interfaces.NewMockSkinsRepository(ctrl)
 	capesRepo := mock_interfaces.NewMockCapesRepository(ctrl)
+	authChecker := mock_interfaces.NewMockAuthChecker(ctrl)
 	wd := mock_wd.NewMockWatchdog(ctrl)

 	return &Config{
 		SkinsRepo: skinsRepo,
 		CapesRepo: capesRepo,
-		Logger: wd,
-	}, skinsRepo, capesRepo, wd
+		Auth:      authChecker,
+		Logger:    wd,
+	}, &mocks{
+		Skins: skinsRepo,
+		Capes: capesRepo,
+		Auth:  authChecker,
+		Log:   wd,
+	}
 }
--- a/http/not_found.go
+++ b/http/not_found.go
@ -5,11 +5,10 @@ import (
 	"net/http"
 )

-func (cfg *Config) NotFound(response http.ResponseWriter, request *http.Request)  {
+func (cfg *Config) NotFound(response http.ResponseWriter, request *http.Request) {
 	data, _ := json.Marshal(map[string]string{
-		"status": "404",
+		"status":  "404",
 		"message": "Not Found",
-		"link": "http://docs.ely.by/skin-system.html",
 	})

 	response.Header().Set("Content-Type", "application/json")
--- a/http/not_found_test.go
+++ b/http/not_found_test.go
@ -22,7 +22,6 @@ func TestConfig_NotFound(t *testing.T) {
 	response, _ := ioutil.ReadAll(resp.Body)
 	assert.JSONEq(`{
 		"status": "404",
-		"message": "Not Found",
-		"link": "http://docs.ely.by/skin-system.html"
+		"message": "Not Found"
 	}`, string(response))
 }
--- a/http/signed_textures.go
+++ b/http/signed_textures.go
@ -11,7 +11,6 @@ import (
 type signedTexturesResponse struct {
 	Id    string     `json:"id"`
 	Name  string     `json:"name"`
-	IsEly bool       `json:"ely,omitempty"`
 	Props []property `json:"properties"`
 }

@ -41,8 +40,8 @@ func (cfg *Config) SignedTextures(response http.ResponseWriter, request *http.Re
 				Value: rec.MojangTextures,
 			},
 			{
-				Name: "ely",
-				Value: "but why are you asking?",
+				Name: "chrly",
+				Value: "how do you tame a horse in Minecraft?",
 			},
 		},
 	}
--- a/http/signed_textures_test.go
+++ b/http/signed_textures_test.go
@ -8,7 +8,7 @@ import (
 	"github.com/golang/mock/gomock"
 	testify "github.com/stretchr/testify/assert"

-	"elyby/minecraft-skinsystem/db"
+	"github.com/elyby/chrly/db"
 )

 func TestConfig_SignedTextures(t *testing.T) {
@ -17,10 +17,10 @@ func TestConfig_SignedTextures(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, skinsRepo, _, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

-	skinsRepo.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
-	wd.EXPECT().IncCounter("signed_textures.request", int64(1))
+	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
+	mocks.Log.EXPECT().IncCounter("signed_textures.request", int64(1))

 	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/textures/signed/mock_user", nil)
 	w := httptest.NewRecorder()
@ -41,8 +41,8 @@ func TestConfig_SignedTextures(t *testing.T) {
 				"value": "mocked textures base64"
 			},
 			{
-				"name": "ely",
-				"value": "but why are you asking?"
+				"name": "chrly",
+				"value": "how do you tame a horse in Minecraft?"
 			}
 		]
 	}`, string(response))
@ -54,10 +54,10 @@ func TestConfig_SignedTextures2(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, skinsRepo, _, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

-	skinsRepo.EXPECT().FindByUsername("mock_user").Return(nil, &db.SkinNotFoundError{})
-	wd.EXPECT().IncCounter("signed_textures.request", int64(1))
+	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(nil, &db.SkinNotFoundError{})
+	mocks.Log.EXPECT().IncCounter("signed_textures.request", int64(1))

 	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/textures/signed/mock_user", nil)
 	w := httptest.NewRecorder()
--- a/http/skin.go
+++ b/http/skin.go
@ -18,7 +18,7 @@ func (cfg *Config) Skin(response http.ResponseWriter, request *http.Request) {
 		return
 	}

-	http.Redirect(response, request, buildElyUrl(rec.Url), 301)
+	http.Redirect(response, request, rec.Url, 301)
 }

 func (cfg *Config) SkinGET(response http.ResponseWriter, request *http.Request) {
--- a/http/skin_test.go
+++ b/http/skin_test.go
@ -7,8 +7,8 @@ import (
 	"github.com/golang/mock/gomock"
 	testify "github.com/stretchr/testify/assert"

-	"elyby/minecraft-skinsystem/db"
-	"elyby/minecraft-skinsystem/model"
+	"github.com/elyby/chrly/db"
+	"github.com/elyby/chrly/model"
 )

 func TestConfig_Skin(t *testing.T) {
@ -17,10 +17,10 @@ func TestConfig_Skin(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, skinsRepo, _, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

-	skinsRepo.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
-	wd.EXPECT().IncCounter("skins.request", int64(1))
+	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
+	mocks.Log.EXPECT().IncCounter("skins.request", int64(1))

 	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/skins/mock_user", nil)
 	w := httptest.NewRecorder()
@ -38,10 +38,10 @@ func TestConfig_Skin2(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, skinsRepo, _, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

-	skinsRepo.EXPECT().FindByUsername("notch").Return(nil, &db.SkinNotFoundError{"notch"})
-	wd.EXPECT().IncCounter("skins.request", int64(1))
+	mocks.Skins.EXPECT().FindByUsername("notch").Return(nil, &db.SkinNotFoundError{"notch"})
+	mocks.Log.EXPECT().IncCounter("skins.request", int64(1))

 	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/skins/notch", nil)
 	w := httptest.NewRecorder()
@ -59,11 +59,11 @@ func TestConfig_SkinGET(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, skinsRepo, _, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

-	skinsRepo.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
-	wd.EXPECT().IncCounter("skins.get_request", int64(1))
-	wd.EXPECT().IncCounter("skins.request", int64(1)).Times(0)
+	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
+	mocks.Log.EXPECT().IncCounter("skins.get_request", int64(1))
+	mocks.Log.EXPECT().IncCounter("skins.request", int64(1)).Times(0)

 	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/skins?name=mock_user", nil)
 	w := httptest.NewRecorder()
@ -81,11 +81,11 @@ func TestConfig_SkinGET2(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, skinsRepo, _, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

-	skinsRepo.EXPECT().FindByUsername("notch").Return(nil, &db.SkinNotFoundError{"notch"})
-	wd.EXPECT().IncCounter("skins.get_request", int64(1))
-	wd.EXPECT().IncCounter("skins.request", int64(1)).Times(0)
+	mocks.Skins.EXPECT().FindByUsername("notch").Return(nil, &db.SkinNotFoundError{"notch"})
+	mocks.Log.EXPECT().IncCounter("skins.get_request", int64(1))
+	mocks.Log.EXPECT().IncCounter("skins.request", int64(1)).Times(0)

 	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/skins?name=notch", nil)
 	w := httptest.NewRecorder()
@ -112,6 +112,7 @@ func TestConfig_SkinGET3(t *testing.T) {

 func createSkinModel(username string, isSlim bool) *model.Skin {
 	return &model.Skin{
+		UserId:          1,
 		Username:        username,
 		Uuid:            "0f657aa8-bfbe-415d-b700-5750090d3af3",
 		SkinId:          1,
--- a/http/textures.go
+++ b/http/textures.go
@ -11,7 +11,7 @@ import (

 	"github.com/gorilla/mux"

-	"elyby/minecraft-skinsystem/model"
+	"github.com/elyby/chrly/model"
 )

 type texturesResponse struct {
@ -46,8 +46,6 @@ func (cfg *Config) Textures(response http.ResponseWriter, request *http.Request)

 		skin.Url = "http://skins.minecraft.net/MinecraftSkins/" + username + ".png"
 		skin.Hash = string(buildNonElyTexturesHash(username))
-	} else {
-		skin.Url = buildElyUrl(skin.Url)
 	}

 	textures := texturesResponse{
--- a/http/textures_test.go
+++ b/http/textures_test.go
@ -10,8 +10,8 @@ import (
 	"github.com/golang/mock/gomock"
 	testify "github.com/stretchr/testify/assert"

-	"elyby/minecraft-skinsystem/db"
-	"elyby/minecraft-skinsystem/model"
+	"github.com/elyby/chrly/db"
+	"github.com/elyby/chrly/model"
 )

 func TestConfig_Textures(t *testing.T) {
@ -20,11 +20,11 @@ func TestConfig_Textures(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, skinsRepo, capesRepo, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

-	skinsRepo.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
-	capesRepo.EXPECT().FindByUsername("mock_user").Return(nil, &db.CapeNotFoundError{"mock_user"})
-	wd.EXPECT().IncCounter("textures.request", int64(1))
+	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
+	mocks.Capes.EXPECT().FindByUsername("mock_user").Return(nil, &db.CapeNotFoundError{"mock_user"})
+	mocks.Log.EXPECT().IncCounter("textures.request", int64(1))

 	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/textures/mock_user", nil)
 	w := httptest.NewRecorder()
@ -49,11 +49,11 @@ func TestConfig_Textures2(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, skinsRepo, capesRepo, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

-	skinsRepo.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", true), nil)
-	capesRepo.EXPECT().FindByUsername("mock_user").Return(nil, &db.CapeNotFoundError{"mock_user"})
-	wd.EXPECT().IncCounter("textures.request", int64(1))
+	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", true), nil)
+	mocks.Capes.EXPECT().FindByUsername("mock_user").Return(nil, &db.CapeNotFoundError{"mock_user"})
+	mocks.Log.EXPECT().IncCounter("textures.request", int64(1))

 	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/textures/mock_user", nil)
 	w := httptest.NewRecorder()
@ -81,13 +81,13 @@ func TestConfig_Textures3(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, skinsRepo, capesRepo, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

-	skinsRepo.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
-	capesRepo.EXPECT().FindByUsername("mock_user").Return(&model.Cape{
+	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
+	mocks.Capes.EXPECT().FindByUsername("mock_user").Return(&model.Cape{
 		File: bytes.NewReader(createCape()),
 	}, nil)
-	wd.EXPECT().IncCounter("textures.request", int64(1))
+	mocks.Log.EXPECT().IncCounter("textures.request", int64(1))

 	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/textures/mock_user", nil)
 	w := httptest.NewRecorder()
@ -116,11 +116,11 @@ func TestConfig_Textures4(t *testing.T) {
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()

-	config, skinsRepo, capesRepo, wd := setupMocks(ctrl)
+	config, mocks := setupMocks(ctrl)

-	skinsRepo.EXPECT().FindByUsername("notch").Return(nil, &db.SkinNotFoundError{})
-	capesRepo.EXPECT().FindByUsername("notch").Return(nil, &db.CapeNotFoundError{})
-	wd.EXPECT().IncCounter("textures.request", int64(1))
+	mocks.Skins.EXPECT().FindByUsername("notch").Return(nil, &db.SkinNotFoundError{})
+	mocks.Capes.EXPECT().FindByUsername("notch").Return(nil, &db.CapeNotFoundError{})
+	mocks.Log.EXPECT().IncCounter("textures.request", int64(1))
 	timeNow = func() time.Time {
 		return time.Date(2017, time.August, 20, 0, 15, 54, 0, time.UTC)
 	}
--- a/interfaces/api.go
+++ b/interfaces/api.go
@ -1,9 +0,0 @@
-package interfaces
-
-import (
-	"elyby/minecraft-skinsystem/api/accounts"
-)
-
-type AccountsAPI interface {
-	AccountInfo(attribute string, value string) (*accounts.AccountInfoResponse, error)
-}
--- a/interfaces/auth.go
+++ b/interfaces/auth.go
@ -0,0 +1,7 @@
+package interfaces
+
+import "net/http"
+
+type AuthChecker interface {
+	Check(req *http.Request) error
+}
--- a/interfaces/mock_interfaces/mock_api.go
+++ b/interfaces/mock_interfaces/mock_api.go
@ -1,46 +0,0 @@
-// Code generated by MockGen. DO NOT EDIT.
-// Source: interfaces/api.go
-
-package mock_interfaces
-
-import (
-	accounts "elyby/minecraft-skinsystem/api/accounts"
-	gomock "github.com/golang/mock/gomock"
-	reflect "reflect"
-)
-
-// MockAccountsAPI is a mock of AccountsAPI interface
-type MockAccountsAPI struct {
-	ctrl     *gomock.Controller
-	recorder *MockAccountsAPIMockRecorder
-}
-
-// MockAccountsAPIMockRecorder is the mock recorder for MockAccountsAPI
-type MockAccountsAPIMockRecorder struct {
-	mock *MockAccountsAPI
-}
-
-// NewMockAccountsAPI creates a new mock instance
-func NewMockAccountsAPI(ctrl *gomock.Controller) *MockAccountsAPI {
-	mock := &MockAccountsAPI{ctrl: ctrl}
-	mock.recorder = &MockAccountsAPIMockRecorder{mock}
-	return mock
-}
-
-// EXPECT returns an object that allows the caller to indicate expected use
-func (_m *MockAccountsAPI) EXPECT() *MockAccountsAPIMockRecorder {
-	return _m.recorder
-}
-
-// AccountInfo mocks base method
-func (_m *MockAccountsAPI) AccountInfo(attribute string, value string) (*accounts.AccountInfoResponse, error) {
-	ret := _m.ctrl.Call(_m, "AccountInfo", attribute, value)
-	ret0, _ := ret[0].(*accounts.AccountInfoResponse)
-	ret1, _ := ret[1].(error)
-	return ret0, ret1
-}
-
-// AccountInfo indicates an expected call of AccountInfo
-func (_mr *MockAccountsAPIMockRecorder) AccountInfo(arg0, arg1 interface{}) *gomock.Call {
-	return _mr.mock.ctrl.RecordCallWithMethodType(_mr.mock, "AccountInfo", reflect.TypeOf((*MockAccountsAPI)(nil).AccountInfo), arg0, arg1)
-}
--- a/interfaces/mock_interfaces/mock_auth.go
+++ b/interfaces/mock_interfaces/mock_auth.go
@ -0,0 +1,45 @@
+// Code generated by MockGen. DO NOT EDIT.
+// Source: interfaces/auth.go
+
+package mock_interfaces
+
+import (
+	gomock "github.com/golang/mock/gomock"
+	http "net/http"
+	reflect "reflect"
+)
+
+// MockAuthChecker is a mock of AuthChecker interface
+type MockAuthChecker struct {
+	ctrl     *gomock.Controller
+	recorder *MockAuthCheckerMockRecorder
+}
+
+// MockAuthCheckerMockRecorder is the mock recorder for MockAuthChecker
+type MockAuthCheckerMockRecorder struct {
+	mock *MockAuthChecker
+}
+
+// NewMockAuthChecker creates a new mock instance
+func NewMockAuthChecker(ctrl *gomock.Controller) *MockAuthChecker {
+	mock := &MockAuthChecker{ctrl: ctrl}
+	mock.recorder = &MockAuthCheckerMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use
+func (_m *MockAuthChecker) EXPECT() *MockAuthCheckerMockRecorder {
+	return _m.recorder
+}
+
+// Check mocks base method
+func (_m *MockAuthChecker) Check(req *http.Request) error {
+	ret := _m.ctrl.Call(_m, "Check", req)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// Check indicates an expected call of Check
+func (_mr *MockAuthCheckerMockRecorder) Check(arg0 interface{}) *gomock.Call {
+	return _mr.mock.ctrl.RecordCallWithMethodType(_mr.mock, "Check", reflect.TypeOf((*MockAuthChecker)(nil).Check), arg0)
+}
--- a/interfaces/mock_interfaces/mock_interfaces.go
+++ b/interfaces/mock_interfaces/mock_interfaces.go
@ -4,7 +4,7 @@
 package mock_interfaces

 import (
-	model "elyby/minecraft-skinsystem/model"
+	model "github.com/elyby/chrly/model"
 	gomock "github.com/golang/mock/gomock"
 	reflect "reflect"
 )
@ -70,6 +70,30 @@ func (_mr *MockSkinsRepositoryMockRecorder) Save(arg0 interface{}) *gomock.Call
 	return _mr.mock.ctrl.RecordCallWithMethodType(_mr.mock, "Save", reflect.TypeOf((*MockSkinsRepository)(nil).Save), arg0)
 }

+// RemoveByUserId mocks base method
+func (_m *MockSkinsRepository) RemoveByUserId(id int) error {
+	ret := _m.ctrl.Call(_m, "RemoveByUserId", id)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// RemoveByUserId indicates an expected call of RemoveByUserId
+func (_mr *MockSkinsRepositoryMockRecorder) RemoveByUserId(arg0 interface{}) *gomock.Call {
+	return _mr.mock.ctrl.RecordCallWithMethodType(_mr.mock, "RemoveByUserId", reflect.TypeOf((*MockSkinsRepository)(nil).RemoveByUserId), arg0)
+}
+
+// RemoveByUsername mocks base method
+func (_m *MockSkinsRepository) RemoveByUsername(username string) error {
+	ret := _m.ctrl.Call(_m, "RemoveByUsername", username)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// RemoveByUsername indicates an expected call of RemoveByUsername
+func (_mr *MockSkinsRepositoryMockRecorder) RemoveByUsername(arg0 interface{}) *gomock.Call {
+	return _mr.mock.ctrl.RecordCallWithMethodType(_mr.mock, "RemoveByUsername", reflect.TypeOf((*MockSkinsRepository)(nil).RemoveByUsername), arg0)
+}
+
 // MockCapesRepository is a mock of CapesRepository interface
 type MockCapesRepository struct {
 	ctrl     *gomock.Controller
--- a/interfaces/repositories.go
+++ b/interfaces/repositories.go
@ -1,13 +1,15 @@
 package interfaces

 import (
-	"elyby/minecraft-skinsystem/model"
+	"github.com/elyby/chrly/model"
 )

 type SkinsRepository interface {
 	FindByUsername(username string) (*model.Skin, error)
 	FindByUserId(id int) (*model.Skin, error)
 	Save(skin *model.Skin) error
+	RemoveByUserId(id int) error
+	RemoveByUsername(username string) error
 }

 type CapesRepository interface {
--- a/logger/receivers/sentry/receiver.go
+++ b/logger/receivers/sentry/receiver.go
@ -1,132 +0,0 @@
-package sentry
-
-import (
-	"fmt"
-
-	"github.com/getsentry/raven-go"
-	"github.com/mono83/slf"
-	"github.com/mono83/slf/filters"
-)
-
-// Config holds information for filtered receiver
-type Config struct {
-	MinLevel        string
-	ParamsWhiteList []string
-	ParamsBlackList []string
-}
-
-// NewReceiver allows you to create a new receiver in the Sentry
-// using the fastest and easiest way.
-// The Config parameter can be passed as nil if you do not need additional filtration.
-func NewReceiver(dsn string, cfg *Config) (slf.Receiver, error) {
-	client, err := raven.New(dsn)
-	if err != nil {
-		return nil, err
-	}
-
-	return NewReceiverWithCustomRaven(client, cfg)
-}
-
-// NewReceiverWithCustomRaven allows you to create a new receiver in the Sentry
-// configuring raven.Client by yourself. This can be useful if you need to set
-// additional parameters, such as release and environment, that will be sent
-// with each Packet in the Sentry:
-//
-// client, err := raven.New("https://some:sentry@dsn.sentry.io/1")
-// if err != nil {
-//     return nil, err
-// }
-//
-// client.SetRelease("1.3.2")
-// client.SetEnvironment("production")
-// client.SetDefaultLoggerName("sentry-watchdog-receiver")
-//
-// sentryReceiver, err := sentry.NewReceiverWithCustomRaven(client, &sentry.Config{
-//     MinLevel: "warn",
-// })
-//
-// The Config parameter allows you to add additional filtering, such as the minimum
-// message level and the exclusion of private parameters. If you do not need additional
-// filtering, nil can passed.
-func NewReceiverWithCustomRaven(client *raven.Client, cfg *Config) (slf.Receiver, error) {
-	out, err := buildReceiverForClient(client)
-	if err != nil {
-		return nil, err
-	}
-
-	if cfg == nil {
-		return out, nil
-	}
-
-	// Resolving level
-	level, ok := slf.ParseType(cfg.MinLevel)
-	if !ok {
-		return nil, fmt.Errorf("Unknown level %s", cfg.MinLevel)
-	}
-
-	if len(cfg.ParamsWhiteList) > 0 {
-		out.filter = slf.NewWhiteListParamsFilter(cfg.ParamsWhiteList)
-	} else {
-		out.filter = slf.NewBlackListParamsFilter(cfg.ParamsBlackList)
-	}
-
-	return filters.MinLogLevel(level, out), nil
-}
-
-func buildReceiverForClient(client *raven.Client) (*sentryLogReceiver, error) {
-	return &sentryLogReceiver{target: client, filter: slf.NewBlackListParamsFilter(nil)}, nil
-}
-
-type sentryLogReceiver struct {
-	target *raven.Client
-	filter slf.ParamsFilter
-}
-
-func (l sentryLogReceiver) Receive(p slf.Event) {
-	if !p.IsLog() {
-		return
-	}
-
-	pkt := raven.NewPacket(
-		slf.ReplacePlaceholders(p.Content, p.Params, false),
-		// First 5 means, that first N elements will be skipped before actual app trace
-		// This is needed to exclude watchdog calls from stack trace
-		raven.NewStacktrace(5, 5, []string{}),
-	)
-
-	if len(p.Params) > 0 {
-		shownParams := l.filter(p.Params)
-		for _, param := range shownParams {
-			value := param.GetRaw()
-			if e, ok := value.(error); ok && e != nil {
-				value = e.Error()
-			}
-
-			pkt.Extra[param.GetKey()] = value
-		}
-	}
-
-	pkt.Level = convertType(p.Type)
-	pkt.Timestamp = raven.Timestamp(p.Time)
-
-	l.target.Capture(pkt, map[string]string{})
-}
-
-func convertType(wdType byte) raven.Severity {
-	switch wdType {
-	case slf.TypeTrace:
-	case slf.TypeDebug:
-		return raven.DEBUG
-	case slf.TypeInfo:
-		return raven.INFO
-	case slf.TypeWarning:
-		return raven.WARNING
-	case slf.TypeError:
-		return raven.ERROR
-	case slf.TypeAlert:
-	case slf.TypeEmergency:
-		return raven.FATAL
-	}
-
-	panic("Unknown wd type " + string(wdType))
-}
--- a/main.go
+++ b/main.go
@ -3,7 +3,7 @@ package main
 import (
 	"runtime"

-	"elyby/minecraft-skinsystem/cmd"
+	"github.com/elyby/chrly/cmd"
 )

 func main() {
--- a/script/mocks
+++ b/script/mocks
@ -0,0 +1,4 @@
+#!/bin/sh
+
+mockgen -source=interfaces/repositories.go -destination=interfaces/mock_interfaces/mock_interfaces.go
+mockgen -source=interfaces/auth.go -destination=interfaces/mock_interfaces/mock_auth.go
--- a/worker/worder_test.go
+++ b/worker/worder_test.go
@ -1,187 +0,0 @@
-package worker
-
-import (
-	"errors"
-	"testing"
-
-	"github.com/golang/mock/gomock"
-	testify "github.com/stretchr/testify/assert"
-
-	"elyby/minecraft-skinsystem/api/accounts"
-	"elyby/minecraft-skinsystem/db"
-	"elyby/minecraft-skinsystem/interfaces/mock_interfaces"
-	"elyby/minecraft-skinsystem/interfaces/mock_wd"
-	"elyby/minecraft-skinsystem/model"
-)
-
-func TestServices_HandleChangeUsername(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	services, skinRepo, _, wd := setupMocks(ctrl)
-
-	resultModel := createSourceModel()
-	resultModel.Username = "new_username"
-
-	// Запись о скине существует, никаких осложнений
-	skinRepo.EXPECT().FindByUserId(1).Return(createSourceModel(), nil)
-	skinRepo.EXPECT().Save(resultModel)
-	wd.EXPECT().IncCounter("worker.change_username", int64(1))
-
-	assert.True(services.HandleChangeUsername(&UsernameChanged{
-		AccountId: 1,
-		OldUsername: "mock_user",
-		NewUsername: "new_username",
-	}))
-
-	// Событие с пустым ником, т.е это регистрация, так что нужно создать запись о скине
-	skinRepo.EXPECT().FindByUserId(1).Times(0)
-	skinRepo.EXPECT().Save(&model.Skin{UserId: 1, Username: "new_mock"})
-	wd.EXPECT().IncCounter("worker.change_username", int64(1))
-	wd.EXPECT().IncCounter("worker.change_username_empty_old_username", int64(1))
-
-	assert.True(services.HandleChangeUsername(&UsernameChanged{
-		AccountId: 1,
-		OldUsername: "",
-		NewUsername: "new_mock",
-	}))
-
-	// В базе системы скинов нет записи об указанном пользователе, так что её нужно восстановить
-	skinRepo.EXPECT().FindByUserId(1).Return(nil, &db.SkinNotFoundError{})
-	skinRepo.EXPECT().Save(&model.Skin{UserId: 1, Username: "new_mock2"})
-	wd.EXPECT().IncCounter("worker.change_username", int64(1))
-	wd.EXPECT().IncCounter("worker.change_username_id_not_found", int64(1))
-	wd.EXPECT().Info("Cannot find user id :accountId. Trying to search.", gomock.Any())
-
-	assert.True(services.HandleChangeUsername(&UsernameChanged{
-		AccountId: 1,
-		OldUsername: "mock_user",
-		NewUsername: "new_mock2",
-	}))
-
-	// Репозиторий вернул неожиданную ошибку
-	skinRepo.EXPECT().FindByUserId(1).Return(nil, errors.New("mock error"))
-	skinRepo.EXPECT().Save(&model.Skin{UserId: 1, Username: "new_mock2"})
-	wd.EXPECT().IncCounter("worker.change_username", int64(1))
-	wd.EXPECT().IncCounter("worker.change_username_id_not_found", int64(1))
-	wd.EXPECT().Info("Cannot find user id :accountId. Trying to search.", gomock.Any())
-	wd.EXPECT().Error("Unknown error when requesting a skin from the repository: :err", gomock.Any())
-
-	assert.True(services.HandleChangeUsername(&UsernameChanged{
-		AccountId: 1,
-		OldUsername: "mock_user",
-		NewUsername: "new_mock2",
-	}))
-}
-
-func TestServices_HandleSkinChanged(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	services, skinRepo, accountsAPI, wd := setupMocks(ctrl)
-
-	event := &SkinChanged{
-		AccountId: 1,
-		Uuid: "cdb907ce-84f4-4c38-801d-1e287dca2623",
-		SkinId: 2,
-		OldSkinId: 1,
-		Hash: "f76caa016e07267a05b7daf9ebc7419c",
-		Is1_8: true,
-		IsSlim: false,
-		Url: "http://ely.by/minecraft/skins/69c6740d2993e5d6f6a7fc92420efc29.png",
-		MojangTextures: "new mocked textures base64",
-		MojangSignature: "new mocked signature",
-	}
-
-	resultModel := createSourceModel()
-	resultModel.SkinId = event.SkinId
-	resultModel.Hash = event.Hash
-	resultModel.Is1_8 = event.Is1_8
-	resultModel.IsSlim = event.IsSlim
-	resultModel.Url = event.Url
-	resultModel.MojangTextures = event.MojangTextures
-	resultModel.MojangSignature = event.MojangSignature
-
-	// Запись о скине существует, никаких осложнений
-	skinRepo.EXPECT().FindByUserId(1).Return(createSourceModel(), nil)
-	skinRepo.EXPECT().Save(resultModel)
-	wd.EXPECT().IncCounter("worker.skin_changed", int64(1))
-
-	assert.True(services.HandleSkinChanged(event))
-
-	// Записи о скине не существует, она должна быть восстановлена
-	skinRepo.EXPECT().FindByUserId(1).Return(nil, &db.SkinNotFoundError{"mock_user"})
-	skinRepo.EXPECT().Save(resultModel)
-	accountsAPI.EXPECT().AccountInfo("id", "1").Return(&accounts.AccountInfoResponse{
-		Id: 1,
-		Username: "mock_user",
-		Uuid: "cdb907ce-84f4-4c38-801d-1e287dca2623",
-		Email: "mock-user@ely.by",
-	}, nil)
-	wd.EXPECT().IncCounter("worker.skin_changed", int64(1))
-	wd.EXPECT().IncCounter("worker.skin_changed_id_not_found", int64(1))
-	wd.EXPECT().IncCounter("worker.skin_changed_id_restored", int64(1))
-	wd.EXPECT().Info("Cannot find user id :accountId. Trying to search.", gomock.Any())
-	wd.EXPECT().Info("User info successfully restored.")
-
-	assert.True(services.HandleSkinChanged(event))
-
-	// Записи о скине не существует, и Ely.by Accounts internal API не знает о таком пользователе
-	skinRepo.EXPECT().FindByUserId(1).Return(nil, &db.SkinNotFoundError{"mock_user"})
-	accountsAPI.EXPECT().AccountInfo("id", "1").Return(nil, &accounts.NotFoundResponse{})
-	wd.EXPECT().IncCounter("worker.skin_changed", int64(1))
-	wd.EXPECT().IncCounter("worker.skin_changed_id_not_found", int64(1))
-	wd.EXPECT().IncCounter("worker.skin_changed_id_not_restored", int64(1))
-	wd.EXPECT().Info("Cannot find user id :accountId. Trying to search.", gomock.Any())
-	wd.EXPECT().Error("Cannot restore user info for :accountId: :err", gomock.Any(), gomock.Any())
-
-	assert.True(services.HandleSkinChanged(event))
-
-	// Репозиторий скинов вернул неизвестную ошибку, и Ely.by Accounts internal API не знает о таком пользователе
-	skinRepo.EXPECT().FindByUserId(1).Return(nil, errors.New("mocked error"))
-	accountsAPI.EXPECT().AccountInfo("id", "1").Return(nil, &accounts.NotFoundResponse{})
-	wd.EXPECT().IncCounter("worker.skin_changed", int64(1))
-	wd.EXPECT().IncCounter("worker.skin_changed_id_not_found", int64(1))
-	wd.EXPECT().IncCounter("worker.skin_changed_id_not_restored", int64(1))
-	wd.EXPECT().Error("Unknown error when requesting a skin from the repository: :err", gomock.Any())
-	wd.EXPECT().Info("Cannot find user id :accountId. Trying to search.", gomock.Any())
-	wd.EXPECT().Error("Cannot restore user info for :accountId: :err", gomock.Any(), gomock.Any())
-
-	assert.True(services.HandleSkinChanged(event))
-}
-
-func createSourceModel() *model.Skin {
-	return &model.Skin{
-		UserId: 1,
-		Uuid: "cdb907ce-84f4-4c38-801d-1e287dca2623",
-		Username: "mock_user",
-		SkinId: 1,
-		Url: "http://ely.by/minecraft/skins/3a345c701f473ac08c8c5b8ecb58ecf3.png",
-		Is1_8: false,
-		IsSlim: false,
-		Hash: "3a345c701f473ac08c8c5b8ecb58ecf3",
-		MojangTextures: "mocked textures base64",
-		MojangSignature: "mocked signature",
-	}
-}
-
-func setupMocks(ctrl *gomock.Controller) (
-	*Services,
-	*mock_interfaces.MockSkinsRepository,
-	*mock_interfaces.MockAccountsAPI,
-	*mock_wd.MockWatchdog,
-) {
-	skinsRepo := mock_interfaces.NewMockSkinsRepository(ctrl)
-	accountApi := mock_interfaces.NewMockAccountsAPI(ctrl)
-	wd := mock_wd.NewMockWatchdog(ctrl)
-
-	return &Services{
-		SkinsRepo: skinsRepo,
-		AccountsAPI: accountApi,
-		Logger: wd,
-	}, skinsRepo, accountApi, wd
-}
--- a/worker/worker.go
+++ b/worker/worker.go
@ -1,220 +0,0 @@
-package worker
-
-import (
-	"encoding/json"
-	"strconv"
-
-	"github.com/assembla/cony"
-	"github.com/mono83/slf/wd"
-	"github.com/streadway/amqp"
-
-	"elyby/minecraft-skinsystem/db"
-	"elyby/minecraft-skinsystem/interfaces"
-	"elyby/minecraft-skinsystem/model"
-)
-
-type Services struct {
-	AmqpClient  *cony.Client
-	SkinsRepo   interfaces.SkinsRepository
-	AccountsAPI interfaces.AccountsAPI
-	Logger      wd.Watchdog
-}
-
-type UsernameChanged struct {
-	AccountId   int    `json:"accountId"`
-	OldUsername string `json:"oldUsername"`
-	NewUsername string `json:"newUsername"`
-}
-
-type SkinChanged struct {
-	AccountId       int    `json:"userId"`
-	Uuid            string `json:"uuid"`
-	SkinId          int    `json:"skinId"`
-	OldSkinId       int    `json:"oldSkinId"`
-	Hash            string `json:"hash"`
-	Is1_8           bool   `json:"is1_8"`
-	IsSlim          bool   `json:"isSlim"`
-	Url             string `json:"url"`
-	MojangTextures  string `json:"mojangTextures"`
-	MojangSignature string `json:"mojangSignature"`
-}
-
-const exchangeName string = "events"
-const queueName string = "skinsystem-accounts-events"
-
-func (service *Services) Run() error {
-	clientErrs, consumerErrs, deliveryChannel := setupClient(service.AmqpClient)
-	shouldReturnError := true
-
-	for service.AmqpClient.Loop() {
-		select {
-		case msg := <-deliveryChannel:
-			shouldReturnError = false
-			service.HandleDelivery(&msg)
-		case err := <-consumerErrs:
-			if shouldReturnError {
-				return err
-			}
-
-			service.Logger.Error("Consume error: :err", wd.ErrParam(err))
-		case err := <-clientErrs:
-			if shouldReturnError {
-				return err
-			}
-
-			service.Logger.Error("Client error: :err", wd.ErrParam(err))
-		}
-	}
-
-	return nil
-}
-
-func (service *Services) HandleDelivery(delivery *amqp.Delivery) {
-	service.Logger.Debug("Incoming message with routing key " + delivery.RoutingKey)
-	var result bool = true
-	switch delivery.RoutingKey {
-	case "accounts.username-changed":
-		var event *UsernameChanged
-		json.Unmarshal(delivery.Body, &event)
-		result = service.HandleChangeUsername(event)
-	case "accounts.skin-changed":
-		var event *SkinChanged
-		json.Unmarshal(delivery.Body, &event)
-		result = service.HandleSkinChanged(event)
-	default:
-		service.Logger.Info("Unknown delivery with routing key " + delivery.RoutingKey)
-		delivery.Ack(false)
-		return
-	}
-
-	if result {
-		delivery.Ack(false)
-	} else {
-		delivery.Reject(true)
-	}
-}
-
-func (service *Services) HandleChangeUsername(event *UsernameChanged) bool {
-	service.Logger.IncCounter("worker.change_username", 1)
-	if event.OldUsername == "" {
-		service.Logger.IncCounter("worker.change_username_empty_old_username", 1)
-		record := &model.Skin{
-			UserId:   event.AccountId,
-			Username: event.NewUsername,
-		}
-
-		service.SkinsRepo.Save(record)
-
-		return true
-	}
-
-	record, err := service.SkinsRepo.FindByUserId(event.AccountId)
-	if err != nil {
-		service.Logger.Info("Cannot find user id :accountId. Trying to search.", wd.IntParam("accountId", event.AccountId))
-		if _, isSkinNotFound := err.(*db.SkinNotFoundError); !isSkinNotFound {
-			service.Logger.Error("Unknown error when requesting a skin from the repository: :err", wd.ErrParam(err))
-		}
-
-		service.Logger.IncCounter("worker.change_username_id_not_found", 1)
-		record = &model.Skin{
-			UserId: event.AccountId,
-		}
-	}
-
-	record.Username = event.NewUsername
-	service.SkinsRepo.Save(record)
-
-	return true
-}
-
-// TODO: возможно стоит добавить проверку на совпадение id аккаунтов
-func (service *Services) HandleSkinChanged(event *SkinChanged) bool {
-	service.Logger.IncCounter("worker.skin_changed", 1)
-	var record *model.Skin
-	record, err := service.SkinsRepo.FindByUserId(event.AccountId)
-	if err != nil {
-		if _, isSkinNotFound := err.(*db.SkinNotFoundError); !isSkinNotFound {
-			service.Logger.Error("Unknown error when requesting a skin from the repository: :err", wd.ErrParam(err))
-		}
-
-		service.Logger.IncCounter("worker.skin_changed_id_not_found", 1)
-		service.Logger.Info("Cannot find user id :accountId. Trying to search.", wd.IntParam("accountId", event.AccountId))
-		response, err := service.AccountsAPI.AccountInfo("id", strconv.Itoa(event.AccountId))
-		if err != nil {
-			service.Logger.IncCounter("worker.skin_changed_id_not_restored", 1)
-			service.Logger.Error(
-				"Cannot restore user info for :accountId: :err",
-				wd.IntParam("accountId", event.AccountId),
-				wd.ErrParam(err),
-			)
-
-			return true
-		}
-
-		service.Logger.IncCounter("worker.skin_changed_id_restored", 1)
-		service.Logger.Info("User info successfully restored.")
-
-		record = &model.Skin{
-			UserId: response.Id,
-			Username: response.Username,
-		}
-	}
-
-	record.Uuid = event.Uuid
-	record.SkinId = event.SkinId
-	record.Hash = event.Hash
-	record.Is1_8 = event.Is1_8
-	record.IsSlim = event.IsSlim
-	record.Url = event.Url
-	record.MojangTextures = event.MojangTextures
-	record.MojangSignature = event.MojangSignature
-
-	service.SkinsRepo.Save(record)
-
-	return true
-}
-
-func setupClient(client *cony.Client) (<-chan error, <-chan error, <-chan amqp.Delivery ) {
-	exchange := cony.Exchange{
-		Name:       exchangeName,
-		Kind:       "topic",
-		Durable:    true,
-		AutoDelete: false,
-	}
-
-	queue := &cony.Queue{
-		Name:       queueName,
-		Durable:    true,
-		AutoDelete: false,
-		Exclusive:  false,
-	}
-
-	usernameEventBinding := cony.Binding{
-		Exchange: exchange,
-		Queue:    queue,
-		Key:      "accounts.username-changed",
-	}
-
-	skinEventBinding := cony.Binding{
-		Exchange: exchange,
-		Queue:    queue,
-		Key:      "accounts.skin-changed",
-	}
-
-	declarations := []cony.Declaration{
-		cony.DeclareExchange(exchange),
-		cony.DeclareQueue(queue),
-		cony.DeclareBinding(usernameEventBinding),
-		cony.DeclareBinding(skinEventBinding),
-	}
-
-	client.Declare(declarations)
-
-	consumer := cony.NewConsumer(queue,
-		cony.Qos(10),
-		cony.AutoTag(),
-	)
-	client.Consume(consumer)
-
-	return client.Errors(), consumer.Errors(), consumer.Deliveries()
-}