Create VulnerabilityType and supporting types

* Creates VulnerabilityType
* Creates VulnerabilityReportTypeEnum
* Creates VulnerabilitySeverityEnum
* Creates VulnerabilityStateEnum
* Creates VulnerabilityResolver
* Adds vulnerabilities property to ProjectType

doc/api/graphql/reference/gitlab_schema.graphql

@@ -3934,6 +3934,11 @@ enum IssueState {
   opened
 }
 
+"""
+Represents untyped JSON
+"""
+scalar JSON
+
 type Label {
   """
   Background color of the label
@@ -6060,6 +6065,31 @@ type Project {
   """
   visibility: String
 
+  """
+  Vulnerabilities reported on the project. Available only when feature flag `first_class_vulnerabilities` is enabled.
+  """
+  vulnerabilities(
+    """
+    Returns the elements in the list that come after the specified cursor.
+    """
+    after: String
+
+    """
+    Returns the elements in the list that come before the specified cursor.
+    """
+    before: String
+
+    """
+    Returns the first _n_ elements from the list.
+    """
+    first: Int
+
+    """
+    Returns the last _n_ elements from the list.
+    """
+    last: Int
+  ): VulnerabilityConnection
+
   """
   Web URL of the project
   """
@@ -8421,4 +8451,117 @@ enum VisibilityScopesEnum {
   internal
   private
   public
+}
+
+"""
+Represents a vulnerability.
+"""
+type Vulnerability {
+  """
+  Description of the vulnerability
+  """
+  description: String
+
+  """
+  GraphQL ID of the vulnerability
+  """
+  id: ID!
+
+  """
+  The JSON location metadata for the vulnerability. Its format depends on the
+  type of the security scan that found the vulnerability
+  """
+  location: JSON
+
+  """
+  Type of the security report that found the vulnerability (SAST, DEPENDENCY_SCANNING, CONTAINER_SCANNING, DAST)
+  """
+  reportType: VulnerabilityReportType
+
+  """
+  Severity of the vulnerability (INFO, UNKNOWN, LOW, MEDIUM, HIGH, CRITICAL)
+  """
+  severity: VulnerabilitySeverity
+
+  """
+  State of the vulnerability (DETECTED, DISMISSED, RESOLVED, CONFIRMED)
+  """
+  state: VulnerabilityState
+
+  """
+  Title of the vulnerability
+  """
+  title: String
+
+  """
+  URL to the vulnerability's details page
+  """
+  vulnerabilityPath: String
+}
+
+"""
+The connection type for Vulnerability.
+"""
+type VulnerabilityConnection {
+  """
+  A list of edges.
+  """
+  edges: [VulnerabilityEdge]
+
+  """
+  A list of nodes.
+  """
+  nodes: [Vulnerability]
+
+  """
+  Information to aid in pagination.
+  """
+  pageInfo: PageInfo!
+}
+
+"""
+An edge in a connection.
+"""
+type VulnerabilityEdge {
+  """
+  A cursor for use in pagination.
+  """
+  cursor: String!
+
+  """
+  The item at the end of the edge.
+  """
+  node: Vulnerability
+}
+
+"""
+The type of the security scan that found the vulnerability.
+"""
+enum VulnerabilityReportType {
+  CONTAINER_SCANNING
+  DAST
+  DEPENDENCY_SCANNING
+  SAST
+}
+
+"""
+The severity of the vulnerability.
+"""
+enum VulnerabilitySeverity {
+  CRITICAL
+  HIGH
+  INFO
+  LOW
+  MEDIUM
+  UNKNOWN
+}
+
+"""
+The state of the vulnerability.
+"""
+enum VulnerabilityState {
+  CONFIRMED
+  DETECTED
+  DISMISSED
+  RESOLVED
 }
\ No newline at end of file

doc/api/graphql/reference/index.md

@@ -1354,3 +1354,18 @@ Autogenerated return type of UpdateSnippet
 | Name  | Type  | Description |
 | ---   |  ---- | ----------  |
 | `createSnippet` | Boolean! | Indicates the user can perform `create_snippet` on this resource |
+
+## Vulnerability
+
+Represents a vulnerability.
+
+| Name  | Type  | Description |
+| ---   |  ---- | ----------  |
+| `description` | String | Description of the vulnerability |
+| `id` | ID! | GraphQL ID of the vulnerability |
+| `location` | JSON | The JSON location metadata for the vulnerability. Its format depends on the type of the security scan that found the vulnerability |
+| `reportType` | VulnerabilityReportType | Type of the security report that found the vulnerability (SAST, DEPENDENCY_SCANNING, CONTAINER_SCANNING, DAST) |
+| `severity` | VulnerabilitySeverity | Severity of the vulnerability (INFO, UNKNOWN, LOW, MEDIUM, HIGH, CRITICAL) |
+| `state` | VulnerabilityState | State of the vulnerability (DETECTED, DISMISSED, RESOLVED, CONFIRMED) |
+| `title` | String | Title of the vulnerability |
+| `vulnerabilityPath` | String | URL to the vulnerability's details page |

ee/app/graphql/ee/types/project_type.rb

@@ -11,6 +11,13 @@ module EE
 
         field :service_desk_address, GraphQL::STRING_TYPE, null: true,
           description: 'E-mail address of the service desk.'
+
+        field :vulnerabilities,
+              ::Types::VulnerabilityType.connection_type,
+              null: true,
+              description: 'Vulnerabilities reported on the project',
+              resolver: Resolvers::VulnerabilitiesResolver,
+              feature_flag: :first_class_vulnerabilities
       end
     end
   end

ee/app/graphql/resolvers/vulnerabilities_resolver.rb

+# frozen_string_literal: true
+
+module Resolvers
+  class VulnerabilitiesResolver < BaseResolver
+    include Gitlab::Utils::StrongMemoize
+
+    type Types::VulnerabilityType, null: true
+
+    def resolve(**args)
+      return Vulnerability.none unless vulnerable
+
+      vulnerable.vulnerabilities.with_findings.ordered
+    end
+
+    private
+
+    # `vulnerable` will be a Project, Group, or InstanceSecurityDashboard
+    def vulnerable
+      # A project or group could have been loaded in batch by `BatchLoader`.
+      # At this point we need the `id` of the project or group to query for vulnerabilities, so
+      # make sure it's loaded and not `nil` before continuing.
+
+      strong_memoize(:vuln) do
+        object.respond_to?(:sync) ? object.sync : object
+      end
+    end
+  end
+end

ee/app/graphql/types/vulnerability_report_type_enum.rb

+# frozen_string_literal: true
+
+module Types
+  class VulnerabilityReportTypeEnum < BaseEnum
+    graphql_name 'VulnerabilityReportType'
+    description 'The type of the security scan that found the vulnerability.'
+
+    ::Vulnerabilities::Occurrence::REPORT_TYPES.keys.each do |report_type|
+      value report_type.to_s.upcase, value: report_type.to_s
+    end
+  end
+end

ee/app/graphql/types/vulnerability_severity_enum.rb

+# frozen_string_literal: true
+
+module Types
+  class VulnerabilitySeverityEnum < BaseEnum
+    graphql_name 'VulnerabilitySeverity'
+    description 'The severity of the vulnerability.'
+
+    ::Vulnerabilities::Occurrence::SEVERITY_LEVELS.keys.each do |severity|
+      value severity.to_s.upcase, value: severity.to_s
+    end
+  end
+end

ee/app/graphql/types/vulnerability_state_enum.rb

+# frozen_string_literal: true
+
+module Types
+  class VulnerabilityStateEnum < BaseEnum
+    graphql_name 'VulnerabilityState'
+    description 'The state of the vulnerability.'
+
+    ::Vulnerability.states.keys.each do |state|
+      value state.to_s.upcase, value: state.to_s
+    end
+  end
+end

ee/app/graphql/types/vulnerability_type.rb

+# frozen_string_literal: true
+
+module Types
+  class VulnerabilityType < BaseObject
+    graphql_name 'Vulnerability'
+    description 'Represents a vulnerability.'
+
+    authorize :read_vulnerability
+
+    field :id, GraphQL::ID_TYPE, null: false,
+          description: 'GraphQL ID of the vulnerability'
+
+    field :title, GraphQL::STRING_TYPE, null: true,
+          description: 'Title of the vulnerability'
+
+    field :description, GraphQL::STRING_TYPE, null: true,
+          description: 'Description of the vulnerability'
+
+    field :state, VulnerabilityStateEnum, null: true,
+          description: "State of the vulnerability (#{::Vulnerability.states.keys.join(', ').upcase})"
+
+    field :severity, VulnerabilitySeverityEnum, null: true,
+          description: "Severity of the vulnerability (#{::Vulnerabilities::Occurrence::SEVERITY_LEVELS.keys.join(', ').upcase})"
+
+    field :report_type, VulnerabilityReportTypeEnum, null: true,
+          description: "Type of the security report that found the vulnerability (#{::Vulnerabilities::Occurrence::REPORT_TYPES.keys.join(', ').upcase})"
+
+    field :vulnerability_path, GraphQL::STRING_TYPE, null: true,
+          description: "URL to the vulnerability's details page",
+          resolve: -> (obj, _args, _ctx) { ::Gitlab::Routing.url_helpers.project_security_vulnerability_path(obj.project, obj) }
+
+    field :location, GraphQL::Types::JSON, null: true,
+          description: 'The JSON location metadata for the vulnerability. Its format depends on the type of the security scan that found the vulnerability',
+          resolve: -> (obj, _args, _ctx) { obj.finding&.location.to_json }
+  end
+end

ee/app/models/vulnerability.rb

@@ -45,6 +45,8 @@ class Vulnerability < ApplicationRecord
   validates :description, length: { maximum: Issuable::DESCRIPTION_LENGTH_MAX }, allow_blank: true
   validates :description_html, length: { maximum: Issuable::DESCRIPTION_HTML_LENGTH_MAX }, allow_blank: true
 
+  scope :ordered, -> { order(severity: :desc) }
+
   scope :with_findings, -> { includes(:findings) }
 
   scope :for_projects, -> (project_ids) { where(project_id: project_ids) }

ee/app/policies/vulnerability_policy.rb

+# frozen_string_literal: true
+
+class VulnerabilityPolicy < BasePolicy
+  delegate { @subject.project }
+end

ee/spec/factories/vulnerabilities.rb

@@ -29,6 +29,18 @@ FactoryBot.define do
       confirmed_at { Time.current }
     end
 
+    ::Vulnerabilities::Occurrence::SEVERITY_LEVELS.keys.each do |severity_level|
+      trait severity_level do
+        severity { severity_level }
+      end
+    end
+
+    ::Vulnerabilities::Occurrence::REPORT_TYPES.keys.each do |report_type|
+      trait report_type do
+        report_type { report_type }
+      end
+    end
+
     trait :with_findings do
       after(:build) do |vulnerability|
         vulnerability.findings = build_list(

ee/spec/graphql/resolvers/vulnerabilities_resolver_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Resolvers::VulnerabilitiesResolver do
+  include GraphqlHelpers
+
+  describe '#resolve' do
+    let_it_be(:project) { create(:project) }
+    let_it_be(:low_vulnerability) { create(:vulnerability, :low, project: project) }
+    let_it_be(:critical_vulnerability) { create(:vulnerability, :critical, project: project) }
+    let_it_be(:high_vulnerability) { create(:vulnerability, :high, project: project) }
+
+    subject { resolve(described_class, obj: project) }
+
+    it "returns the project's vulnerabilities" do
+      is_expected.to contain_exactly(critical_vulnerability, high_vulnerability, low_vulnerability)
+    end
+
+    it 'orders results by severity' do
+      expect(subject.first).to eq(critical_vulnerability)
+      expect(subject.second).to eq(high_vulnerability)
+      expect(subject.third).to eq(low_vulnerability)
+    end
+  end
+end

ee/spec/graphql/types/project_type_spec.rb

@@ -4,8 +4,67 @@ require 'spec_helper'
 
 describe GitlabSchema.types['Project'] do
   it 'includes the ee specific fields' do
-    expected_fields = %w[service_desk_enabled service_desk_address]
+    expected_fields = %w[service_desk_enabled service_desk_address vulnerabilities]
 
     is_expected.to include_graphql_fields(*expected_fields)
   end
+
+  describe 'vulnerabilities' do
+    let_it_be(:project) { create(:project) }
+    let_it_be(:user) { create(:user) }
+    let_it_be(:vulnerability) do
+      create(:vulnerability, :detected, :critical, project: project, title: 'A terrible one!')
+    end
+
+    let_it_be(:query) do
+      %(
+        query {
+          project(fullPath:"#{project.full_path}") {
+            name
+            vulnerabilities {
+              nodes {
+                title
+                severity
+                state
+              }
+            }
+          }
+        }
+      )
+    end
+
+    before do
+      project.add_developer(user)
+    end
+
+    subject { GitlabSchema.execute(query, context: { current_user: user }).as_json }
+
+    context 'when first_class_vulnerabilities is disabled' do
+      before do
+        stub_feature_flags(first_class_vulnerabilities: false)
+      end
+
+      it 'is null' do
+        vulnerabilities = subject.dig('data', 'project', 'vulnerabilities')
+
+        expect(vulnerabilities).to be_nil
+      end
+    end
+
+    context 'when first_class_vulnerabilities is enabled' do
+      before do
+        stub_feature_flags(first_class_vulnerabilities: true)
+        stub_licensed_features(security_dashboard: true)
+      end
+
+      it "returns the project's vulnerabilities" do
+        vulnerabilities = subject.dig('data', 'project', 'vulnerabilities', 'nodes')
+
+        expect(vulnerabilities.count).to be(1)
+        expect(vulnerabilities.first['title']).to eq('A terrible one!')
+        expect(vulnerabilities.first['state']).to eq('DETECTED')
+        expect(vulnerabilities.first['severity']).to eq('CRITICAL')
+      end
+    end
+  end
 end

ee/spec/graphql/types/vulnerability_report_type_enum_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe GitlabSchema.types['VulnerabilityReportType'] do
+  it 'exposes all vulnerability report types' do
+    expect(described_class.values.keys).to contain_exactly(*%w[SAST DAST CONTAINER_SCANNING DEPENDENCY_SCANNING])
+  end
+end

ee/spec/graphql/types/vulnerability_severity_enum_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe GitlabSchema.types['VulnerabilitySeverity'] do
+  it 'exposes all vulnerability severities' do
+    expect(described_class.values.keys).to contain_exactly(*%w[CRITICAL HIGH MEDIUM LOW UNKNOWN INFO])
+  end
+end

ee/spec/graphql/types/vulnerability_state_enum_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe GitlabSchema.types['VulnerabilityState'] do
+  it 'exposes all vulnerability states' do
+    expect(described_class.values.keys).to contain_exactly(*%w[DETECTED CONFIRMED DISMISSED RESOLVED])
+  end
+end

ee/spec/graphql/types/vulnerability_type_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe GitlabSchema.types['Vulnerability'] do
+  let_it_be(:project) { create(:project) }
+  let_it_be(:user) { create(:user) }
+  let_it_be(:vulnerability) { create(:vulnerability, project: project) }
+
+  let(:fields) do
+    %i[id title description state severity report_type vulnerability_path location]
+  end
+
+  before do
+    stub_licensed_features(security_dashboard: true)
+
+    project.add_developer(user)
+  end
+
+  subject { GitlabSchema.execute(query, context: { current_user: user }).as_json }
+
+  it { expect(described_class).to have_graphql_fields(fields) }
+  it { expect(described_class).to require_graphql_authorizations(:read_vulnerability) }
+
+  describe 'vulnerability_path' do
+    let(:query) do
+      %(
+        query {
+          project(fullPath:"#{project.full_path}") {
+            name
+            vulnerabilities {
+              nodes {
+                vulnerabilityPath
+              }
+            }
+          }
+        }
+      )
+    end
+
+    it "is the path to the vulnerability's detail page" do
+      vulnerabilities = subject.dig('data', 'project', 'vulnerabilities', 'nodes')
+
+      expect(vulnerabilities.first['vulnerabilityPath']).to eq(
+        ::Gitlab::Routing.url_helpers.project_security_vulnerability_path(project, vulnerability)
+      )
+    end
+  end
+
+  describe 'location' do
+    let_it_be(:location) do
+      {
+        'end_line' => 666,
+        'file' => 'vulnerable-file.js',
+        'start_line' => 420
+      }
+    end
+
+    let(:query) do
+      %(
+        query {
+          project(fullPath:"#{project.full_path}") {
+            name
+            vulnerabilities {
+              nodes {
+                location
+              }
+            }
+          }
+        }
+      )
+    end
+
+    before do
+      create(
+        :vulnerabilities_occurrence,
+        vulnerability: vulnerability,
+        raw_metadata: {
+          location: location
+        }.to_json
+      )
+    end
+
+    it "is the JSON metadata for the vulnerability's location" do
+      vulnerabilities = subject.dig('data', 'project', 'vulnerabilities', 'nodes')
+
+      expect(JSON.parse(vulnerabilities.first['location'])).to eq(location)
+    end
+  end
+end

ee/spec/models/vulnerability_spec.rb

@@ -97,9 +97,9 @@ describe Vulnerability do
   end
 
   describe '.with_report_types' do
-    let!(:sast_vulnerability) { create(:vulnerability, report_type: :sast) }
-    let!(:dast_vulnerability) { create(:vulnerability, report_type: :dast) }
-    let!(:dependency_scanning_vulnerability) { create(:vulnerability, report_type: :dependency_scanning) }
+    let!(:sast_vulnerability) { create(:vulnerability, :sast) }
+    let!(:dast_vulnerability) { create(:vulnerability, :dast) }
+    let!(:dependency_scanning_vulnerability) { create(:vulnerability, :dependency_scanning) }
     let(:report_types) { %w[sast dast] }
 
     subject { described_class.with_report_types(report_types) }
@@ -110,9 +110,9 @@ describe Vulnerability do
   end
 
   describe '.with_severities' do
-    let!(:high_vulnerability) { create(:vulnerability, severity: :high) }
-    let!(:medium_vulnerability) { create(:vulnerability, severity: :medium) }
-    let!(:low_vulnerability) { create(:vulnerability, severity: :low) }
+    let!(:high_vulnerability) { create(:vulnerability, :high) }
+    let!(:medium_vulnerability) { create(:vulnerability, :medium) }
+    let!(:low_vulnerability) { create(:vulnerability, :low) }
     let(:severities) { %w[medium low] }
 
     subject { described_class.with_severities(severities) }
@@ -135,6 +135,18 @@ describe Vulnerability do
     end
   end
 
+  describe '.ordered' do
+    subject { described_class.ordered }
+
+    it 'returns vulnerabilities ordered by severity' do
+      low_vulnerability = create(:vulnerability, :low)
+      critical_vulnerability = create(:vulnerability, :critical)
+      medium_vulnerability = create(:vulnerability, :medium)
+
+      is_expected.to eq([critical_vulnerability, medium_vulnerability, low_vulnerability])
+    end
+  end
+
   describe '#finding' do
     let_it_be(:project) { create(:project, :with_vulnerabilities) }
     let_it_be(:vulnerability) { project.vulnerabilities.first }

ee/spec/policies/vulnerability_policy_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe VulnerabilityPolicy do
+  describe 'read_vulnerability' do
+    let(:project) { create(:project) }
+    let(:user) { create(:user) }
+    let(:vulnerability) { create(:vulnerability, project: project) }
+
+    subject { described_class.new(user, vulnerability) }
+
+    context 'when the security_dashboard feature is enabled' do
+      before do
+        stub_licensed_features(security_dashboard: true)
+      end
+
+      context "when the current user has developer access to the vulnerability's project" do
+        before do
+          project.add_developer(user)
+        end
+
+        it { is_expected.to be_allowed(:read_vulnerability) }
+      end
+
+      context "when the current user does not have developer access to the vulnerability's project" do
+        it { is_expected.to be_disallowed(:read_vulnerability) }
+      end
+    end
+
+    context 'when the security_dashboard feature is disabled' do
+      before do
+        stub_licensed_features(security_dashboard: false)
+
+        project.add_developer(user)
+      end
+
+      it { is_expected.to be_disallowed(:read_vulnerability) }
+    end
+  end
+end