fix: prohibit concurrent read/write

Bumps [github.com/sparetimecoders/goamqp](https://github.com/sparetimecoders/goamqp) from 0.2.0 to 0.2.1.
- [Release notes](https://github.com/sparetimecoders/goamqp/releases)
- [Commits](https://github.com/sparetimecoders/goamqp/compare/v0.2.0...v0.2.1)

.gitlab-ci.yml

@@ -1,32 +1,75 @@
 include:
-  - template: 'Workflows/MergeRequest-Pipelines.gitlab-ci.yml'
+- template: 'Workflows/MergeRequest-Pipelines.gitlab-ci.yml'
 
-image: golang:1.15
-
-variables:
-  GOFLAGS: -mod=readonly
+image: golang:1.21.5
 
 stages:
-  - deps
-  - test
+- deps
+- test
+- prepare
+- release
+
+run-pre-commit:
+  stage: .pre
+  image: unbound/pre-commit
+  variables:
+    PRE_COMMIT_HOME: ${CI_PROJECT_DIR}/.cache/pre-commit
+  cache:
+  - key:
+      files:
+      - .pre-commit-config.yaml
+    paths:
+    - ${PRE_COMMIT_HOME}
+  script:
+  - pre-commit run --all-files
 
 deps:
   stage: deps
   script:
-    - go mod download
+  - go mod download
 
 test:
   stage: test
   dependencies:
-    - deps
+  - deps
   script:
-    - go fmt $(go list ./...)
-    - go vet $(go list ./...)
-    - CGO_ENABLED=1 go test -mod=readonly -race -coverprofile=coverage.txt -covermode=atomic -coverpkg=$(go list ./... | tr '\n' , | sed 's/,$//') ./...
-    - go tool cover -html=coverage.txt -o coverage.html
-    - go tool cover -func=coverage.txt
-    - bash <(curl -s https://codecov.io/bash)
+  - CGO_ENABLED=1 go test -mod=readonly -race -coverprofile=coverage.txt -covermode=atomic -coverpkg=$(go list ./... | tr '\n' , | sed 's/,$//') ./...
+  - go tool cover -html=coverage.txt -o coverage.html
+  - go tool cover -func=coverage.txt
+  - curl -Os https://uploader.codecov.io/latest/linux/codecov
+  - chmod +x codecov
+  - ./codecov -t ${CODECOV_TOKEN} -R $CI_PROJECT_DIR -C $CI_COMMIT_SHA -r $CI_PROJECT_PATH
+
+vulnerabilities:
+  stage: test
+  image: golang:1.21.5
+  script:
+  - go install golang.org/x/vuln/cmd/govulncheck@latest
+  - govulncheck ./...
+
+prepare_release:
+  image: node:18
+  stage: prepare
+  before_script:
+  - npm install -g conventional-changelog-cli
+  script:
+  - conventional-changelog -p conventionalcommits > ./release.description
   artifacts:
     paths:
-      - coverage.html
-      - coverage.txt
+    - release.description
+  rules:
+  - if: $CI_COMMIT_TAG
+
+release:
+  image: registry.gitlab.com/gitlab-org/release-cli:latest
+  stage: release
+  needs:
+  - job: prepare_release
+    artifacts: true
+  script:
+  - echo "Running release_job for $TAG"
+  release:
+    tag_name: '$CI_COMMIT_TAG'
+    description: ./release.description
+  rules:
+  - if: $CI_COMMIT_TAG

.gitlab/dependabot.yml

@@ -0,0 +1,13 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+- package-ecosystem: "gomod"
+  directory: "/"
+  schedule:
+    interval: "daily"
+  open-pull-requests-limit: 20
+  rebase-strategy: none

.golangci.yml

@@ -0,0 +1,2 @@
+run:
+  allow-parallel-runners: true

.pre-commit-config.yaml

@@ -0,0 +1,42 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v4.4.0
+  hooks:
+  - id: trailing-whitespace
+  - id: end-of-file-fixer
+  - id: check-yaml
+    args:
+    - --allow-multiple-documents
+  - id: check-added-large-files
+- repo: https://gitlab.com/devopshq/gitlab-ci-linter
+  rev: v1.0.5
+  hooks:
+  - id: gitlab-ci-linter
+    args:
+    - --project
+    - unboundsoftware/shiny/authz_client
+- repo: https://github.com/alessandrojcm/commitlint-pre-commit-hook
+  rev: v9.5.0
+  hooks:
+  - id: commitlint
+    stages: [ commit-msg ]
+    additional_dependencies: [ '@commitlint/config-conventional' ]
+- repo: https://github.com/dnephin/pre-commit-golang
+  rev: v0.5.1
+  hooks:
+  - id: go-mod-tidy
+  - id: go-imports
+    args:
+    - -local
+    - gitlab.com/unboundsoftware/shiny/authz_client
+- repo: https://github.com/lietu/go-pre-commit
+  rev: v0.0.1
+  hooks:
+  - id: go-test
+  - id: gofumpt
+- repo: https://github.com/golangci/golangci-lint
+  rev: v1.54.2
+  hooks:
+  - id: golangci-lint

client.go

@@ -3,11 +3,12 @@ package client
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"reflect"
+	"sync"
 
-	"gitlab.com/sparetimecoders/goamqp"
+	"github.com/sparetimecoders/goamqp"
 )
 
 // CompanyPrivileges contains the privileges for a combination of email address and company id
@@ -23,6 +24,7 @@ type CompanyPrivileges struct {
 
 // PrivilegeHandler processes PrivilegeAdded-events and fetches the initial set of privileges from an authz-service
 type PrivilegeHandler struct {
+	*sync.RWMutex
 	client     *http.Client
 	baseURL    string
 	privileges map[string]map[string]*CompanyPrivileges
@@ -41,6 +43,7 @@ func WithBaseURL(url string) OptsFunc {
 // New creates a new PrivilegeHandler. Pass OptsFuncs to configure.
 func New(opts ...OptsFunc) *PrivilegeHandler {
 	handler := &PrivilegeHandler{
+		RWMutex:    &sync.RWMutex{},
 		client:     &http.Client{},
 		baseURL:    "http://authz-service",
 		privileges: map[string]map[string]*CompanyPrivileges{},
@@ -58,11 +61,13 @@ func (h *PrivilegeHandler) Fetch() error {
 		return err
 	}
 
-	buff, err := ioutil.ReadAll(resp.Body)
+	buff, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return err
 	}
 
+	h.RLock()
+	defer h.RUnlock()
 	err = json.Unmarshal(buff, &h.privileges)
 	if err != nil {
 		return err
@@ -77,6 +82,8 @@ func (h *PrivilegeHandler) Process(msg interface{}, _ goamqp.Headers) (interface
 		if priv, exists := h.privileges[ev.Email]; exists {
 			priv[ev.CompanyID] = &CompanyPrivileges{}
 		} else {
+			h.Lock()
+			defer h.Unlock()
 			h.privileges[ev.Email] = map[string]*CompanyPrivileges{
 				ev.CompanyID: {},
 			}
@@ -84,13 +91,19 @@ func (h *PrivilegeHandler) Process(msg interface{}, _ goamqp.Headers) (interface
 		return nil, nil
 	case *UserRemoved:
 		if priv, exists := h.privileges[ev.Email]; exists {
+			h.Lock()
+			defer h.Unlock()
 			delete(priv, ev.CompanyID)
 		}
 		return nil, nil
 	case *PrivilegeAdded:
+		h.Lock()
+		defer h.Unlock()
 		h.setPrivileges(ev.Email, ev.CompanyID, ev.Privilege, true)
 		return nil, nil
 	case *PrivilegeRemoved:
+		h.Lock()
+		defer h.Unlock()
 		h.setPrivileges(ev.Email, ev.CompanyID, ev.Privilege, false)
 		return nil, nil
 	default:
@@ -130,6 +143,8 @@ func (h *PrivilegeHandler) setPrivileges(email, companyId string, privilege Priv
 
 // CompaniesByUser return a slice of company ids matching the provided email and predicate func
 func (h *PrivilegeHandler) CompaniesByUser(email string, predicate func(privileges CompanyPrivileges) bool) []string {
+	h.RLock()
+	defer h.RUnlock()
 	var result []string
 	if p, exists := h.privileges[email]; exists {
 		for k, v := range p {
@@ -143,6 +158,8 @@ func (h *PrivilegeHandler) CompaniesByUser(email string, predicate func(privileg
 
 // IsAllowed return true if the provided predicate return true for the privileges matching the provided email and companyID, return false otherwise
 func (h *PrivilegeHandler) IsAllowed(email, companyID string, predicate func(privileges CompanyPrivileges) bool) bool {
+	h.RLock()
+	defer h.RUnlock()
 	if p, exists := h.privileges[email]; exists {
 		if v, exists := p[companyID]; exists {
 			return predicate(*v)

client_test.go

@@ -7,8 +7,8 @@ import (
 	"sort"
 	"testing"
 
+	"github.com/sparetimecoders/goamqp"
 	"github.com/stretchr/testify/assert"
-	"gitlab.com/sparetimecoders/goamqp"
 )
 
 func TestPrivilegeHandler_Process_InvalidType(t *testing.T) {

go.mod

@@ -1,8 +1,17 @@
 module gitlab.com/unboundsoftware/shiny/authz_client
 
-go 1.13
+go 1.21
 
 require (
-	github.com/stretchr/testify v1.4.0
-	gitlab.com/sparetimecoders/goamqp v0.3.1
+	github.com/sparetimecoders/goamqp v0.2.1
+	github.com/stretchr/testify v1.8.4
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/google/uuid v1.5.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/rabbitmq/amqp091-go v1.9.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,21 +1,32 @@
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