gitlab-org--gitlab-foss/spec/lib/gitlab/git_access_spec.rb

792 lines
26 KiB
Ruby

require 'spec_helper'
describe Gitlab::GitAccess do
set(:user) { create(:user) }
let(:actor) { user }
let(:project) { create(:project, :repository) }
let(:protocol) { 'ssh' }
let(:authentication_abilities) { %i[read_project download_code push_code] }
let(:redirected_path) { nil }
let(:access) { described_class.new(actor, project, protocol, authentication_abilities: authentication_abilities, redirected_path: redirected_path) }
let(:push_access_check) { access.check('git-receive-pack', '_any') }
let(:pull_access_check) { access.check('git-upload-pack', '_any') }
describe '#check with single protocols allowed' do
def disable_protocol(protocol)
allow(Gitlab::ProtocolAccess).to receive(:allowed?).with(protocol).and_return(false)
end
context 'ssh disabled' do
before do
disable_protocol('ssh')
end
it 'blocks ssh git push and pull' do
aggregate_failures do
expect { push_access_check }.to raise_unauthorized('Git access over SSH is not allowed')
expect { pull_access_check }.to raise_unauthorized('Git access over SSH is not allowed')
end
end
end
context 'http disabled' do
let(:protocol) { 'http' }
before do
disable_protocol('http')
end
it 'blocks http push and pull' do
aggregate_failures do
expect { push_access_check }.to raise_unauthorized('Git access over HTTP is not allowed')
expect { pull_access_check }.to raise_unauthorized('Git access over HTTP is not allowed')
end
end
end
end
describe '#check_project_accessibility!' do
context 'when the project exists' do
context 'when actor exists' do
context 'when actor is a DeployKey' do
let(:deploy_key) { create(:deploy_key, user: user, can_push: true) }
let(:actor) { deploy_key }
context 'when the DeployKey has access to the project' do
before do
deploy_key.projects << project
end
it 'allows push and pull access' do
aggregate_failures do
expect { push_access_check }.not_to raise_error
expect { pull_access_check }.not_to raise_error
end
end
end
context 'when the Deploykey does not have access to the project' do
it 'blocks push and pull with "not found"' do
aggregate_failures do
expect { push_access_check }.to raise_not_found
expect { pull_access_check }.to raise_not_found
end
end
end
end
context 'when actor is a User' do
context 'when the User can read the project' do
before do
project.add_master(user)
end
it 'allows push and pull access' do
aggregate_failures do
expect { pull_access_check }.not_to raise_error
expect { push_access_check }.not_to raise_error
end
end
end
context 'when the User cannot read the project' do
it 'blocks push and pull with "not found"' do
aggregate_failures do
expect { push_access_check }.to raise_not_found
expect { pull_access_check }.to raise_not_found
end
end
end
end
# For backwards compatibility
context 'when actor is :ci' do
let(:actor) { :ci }
let(:authentication_abilities) { build_authentication_abilities }
it 'allows pull access' do
expect { pull_access_check }.not_to raise_error
end
it 'does not block pushes with "not found"' do
expect { push_access_check }.to raise_unauthorized(described_class::ERROR_MESSAGES[:upload])
end
end
end
context 'when actor is nil' do
let(:actor) { nil }
context 'when guests can read the project' do
let(:project) { create(:project, :repository, :public) }
it 'allows pull access' do
expect { pull_access_check }.not_to raise_error
end
it 'does not block pushes with "not found"' do
expect { push_access_check }.to raise_unauthorized(described_class::ERROR_MESSAGES[:upload])
end
end
context 'when guests cannot read the project' do
it 'blocks pulls with "not found"' do
expect { pull_access_check }.to raise_not_found
end
it 'blocks pushes with "not found"' do
expect { push_access_check }.to raise_not_found
end
end
end
end
context 'when the project is nil' do
let(:project) { nil }
it 'blocks push and pull with "not found"' do
aggregate_failures do
expect { pull_access_check }.to raise_not_found
expect { push_access_check }.to raise_not_found
end
end
end
end
shared_examples '#check with a key that is not valid' do
before do
project.add_master(user)
end
context 'key is too small' do
before do
stub_application_setting(rsa_key_restriction: 4096)
end
it 'does not allow keys which are too small', :aggregate_failures do
expect(actor).not_to be_valid
expect { pull_access_check }.to raise_unauthorized('Your SSH key must be at least 4096 bits.')
expect { push_access_check }.to raise_unauthorized('Your SSH key must be at least 4096 bits.')
end
end
context 'key type is not allowed' do
before do
stub_application_setting(rsa_key_restriction: ApplicationSetting::FORBIDDEN_KEY_VALUE)
end
it 'does not allow keys which are too small', :aggregate_failures do
expect(actor).not_to be_valid
expect { pull_access_check }.to raise_unauthorized(/Your SSH key type is forbidden/)
expect { push_access_check }.to raise_unauthorized(/Your SSH key type is forbidden/)
end
end
end
it_behaves_like '#check with a key that is not valid' do
let(:actor) { build(:rsa_key_2048, user: user) }
end
it_behaves_like '#check with a key that is not valid' do
let(:actor) { build(:rsa_deploy_key_2048, user: user) }
end
shared_examples 'check_project_moved' do
it 'enqueues a redirected message' do
push_access_check
expect(Gitlab::Checks::ProjectMoved.fetch_redirect_message(user.id, project.id)).not_to be_nil
end
end
describe '#check_project_moved!', :clean_gitlab_redis_shared_state do
before do
project.add_master(user)
end
context 'when a redirect was not followed to find the project' do
it 'allows push and pull access' do
aggregate_failures do
expect { push_access_check }.not_to raise_error
expect { pull_access_check }.not_to raise_error
end
end
end
context 'when a permanent redirect and ssh protocol' do
let(:redirected_path) { 'some/other-path' }
before do
allow_any_instance_of(Gitlab::Checks::ProjectMoved).to receive(:permanent_redirect?).and_return(true)
end
it 'allows push and pull access' do
aggregate_failures do
expect { push_access_check }.not_to raise_error
end
end
it_behaves_like 'check_project_moved'
end
context 'with a permanent redirect and http protocol' do
let(:redirected_path) { 'some/other-path' }
let(:protocol) { 'http' }
before do
allow_any_instance_of(Gitlab::Checks::ProjectMoved).to receive(:permanent_redirect?).and_return(true)
end
it 'allows_push and pull access' do
aggregate_failures do
expect { push_access_check }.not_to raise_error
end
end
it_behaves_like 'check_project_moved'
end
context 'with a temporal redirect and ssh protocol' do
let(:redirected_path) { 'some/other-path' }
it 'blocks push and pull access' do
aggregate_failures do
expect { push_access_check }.to raise_error(described_class::ProjectMovedError, /Project '#{redirected_path}' was moved to '#{project.full_path}'/)
expect { push_access_check }.to raise_error(described_class::ProjectMovedError, /git remote set-url origin #{project.ssh_url_to_repo}/)
expect { pull_access_check }.to raise_error(described_class::ProjectMovedError, /Project '#{redirected_path}' was moved to '#{project.full_path}'/)
expect { pull_access_check }.to raise_error(described_class::ProjectMovedError, /git remote set-url origin #{project.ssh_url_to_repo}/)
end
end
end
context 'with a temporal redirect and http protocol' do
let(:redirected_path) { 'some/other-path' }
let(:protocol) { 'http' }
it 'does not allow to push and pull access' do
expect { push_access_check }.to raise_error(described_class::ProjectMovedError, /git remote set-url origin #{project.http_url_to_repo}/)
expect { pull_access_check }.to raise_error(described_class::ProjectMovedError, /git remote set-url origin #{project.http_url_to_repo}/)
end
end
end
describe '#check_command_disabled!' do
before do
project.add_master(user)
end
context 'over http' do
let(:protocol) { 'http' }
context 'when the git-upload-pack command is disabled in config' do
before do
allow(Gitlab.config.gitlab_shell).to receive(:upload_pack).and_return(false)
end
context 'when calling git-upload-pack' do
it { expect { pull_access_check }.to raise_unauthorized('Pulling over HTTP is not allowed.') }
end
context 'when calling git-receive-pack' do
it { expect { push_access_check }.not_to raise_error }
end
end
context 'when the git-receive-pack command is disabled in config' do
before do
allow(Gitlab.config.gitlab_shell).to receive(:receive_pack).and_return(false)
end
context 'when calling git-receive-pack' do
it { expect { push_access_check }.to raise_unauthorized('Pushing over HTTP is not allowed.') }
end
context 'when calling git-upload-pack' do
it { expect { pull_access_check }.not_to raise_error }
end
end
end
end
describe '#check_download_access!' do
it 'allows masters to pull' do
project.add_master(user)
expect { pull_access_check }.not_to raise_error
end
it 'disallows guests to pull' do
project.add_guest(user)
expect { pull_access_check }.to raise_unauthorized(described_class::ERROR_MESSAGES[:download])
end
it 'disallows blocked users to pull' do
project.add_master(user)
user.block
expect { pull_access_check }.to raise_unauthorized('Your account has been blocked.')
end
describe 'without access to project' do
context 'pull code' do
it { expect { pull_access_check }.to raise_not_found }
end
context 'when project is public' do
let(:public_project) { create(:project, :public, :repository) }
let(:access) { described_class.new(nil, public_project, 'web', authentication_abilities: []) }
context 'when repository is enabled' do
it 'give access to download code' do
expect { pull_access_check }.not_to raise_error
end
end
context 'when repository is disabled' do
it 'does not give access to download code' do
public_project.project_feature.update_attribute(:repository_access_level, ProjectFeature::DISABLED)
expect { pull_access_check }.to raise_unauthorized(described_class::ERROR_MESSAGES[:download])
end
end
end
end
describe 'deploy key permissions' do
let(:key) { create(:deploy_key, user: user) }
let(:actor) { key }
context 'pull code' do
context 'when project is authorized' do
before do
key.projects << project
end
it { expect { pull_access_check }.not_to raise_error }
end
context 'when unauthorized' do
context 'from public project' do
let(:project) { create(:project, :public, :repository) }
it { expect { pull_access_check }.not_to raise_error }
end
context 'from internal project' do
let(:project) { create(:project, :internal, :repository) }
it { expect { pull_access_check }.to raise_not_found }
end
context 'from private project' do
let(:project) { create(:project, :private, :repository) }
it { expect { pull_access_check }.to raise_not_found }
end
end
end
end
describe 'build authentication_abilities permissions' do
let(:authentication_abilities) { build_authentication_abilities }
describe 'owner' do
let(:project) { create(:project, :repository, namespace: user.namespace) }
context 'pull code' do
it { expect { pull_access_check }.not_to raise_error }
end
end
describe 'reporter user' do
before do
project.add_reporter(user)
end
context 'pull code' do
it { expect { pull_access_check }.not_to raise_error }
end
end
describe 'admin user' do
let(:user) { create(:admin) }
context 'when member of the project' do
before do
project.add_reporter(user)
end
context 'pull code' do
it { expect { pull_access_check }.not_to raise_error }
end
end
context 'when is not member of the project' do
context 'pull code' do
it { expect { pull_access_check }.to raise_unauthorized(described_class::ERROR_MESSAGES[:download]) }
end
end
end
describe 'generic CI (build without a user)' do
let(:actor) { :ci }
context 'pull code' do
it { expect { pull_access_check }.not_to raise_error }
end
end
end
end
describe '#check_push_access!' do
before do
merge_into_protected_branch
end
let(:unprotected_branch) { 'unprotected_branch' }
let(:changes) do
{ push_new_branch: "#{Gitlab::Git::BLANK_SHA} 570e7b2ab refs/heads/wow",
push_master: '6f6d7e7ed 570e7b2ab refs/heads/master',
push_protected_branch: '6f6d7e7ed 570e7b2ab refs/heads/feature',
push_remove_protected_branch: "570e7b2ab #{Gitlab::Git::BLANK_SHA} "\
'refs/heads/feature',
push_tag: '6f6d7e7ed 570e7b2ab refs/tags/v1.0.0',
push_new_tag: "#{Gitlab::Git::BLANK_SHA} 570e7b2ab refs/tags/v7.8.9",
push_all: ['6f6d7e7ed 570e7b2ab refs/heads/master', '6f6d7e7ed 570e7b2ab refs/heads/feature'],
merge_into_protected_branch: "0b4bc9a #{merge_into_protected_branch} refs/heads/feature" }
end
def stub_git_hooks
# Running the `pre-receive` hook is expensive, and not necessary for this test.
allow_any_instance_of(Gitlab::Git::HooksService).to receive(:execute) do |service, &block|
block.call(service)
end
end
def merge_into_protected_branch
@protected_branch_merge_commit ||= begin
stub_git_hooks
project.repository.add_branch(user, unprotected_branch, 'feature')
target_branch = project.repository.lookup('feature')
source_branch = project.repository.create_file(
user,
'filename',
'This is the file content',
message: 'This is a good commit message',
branch_name: unprotected_branch)
rugged = project.repository.rugged
author = { email: "email@example.com", time: Time.now, name: "Example Git User" }
merge_index = rugged.merge_commits(target_branch, source_branch)
Rugged::Commit.create(rugged, author: author, committer: author, message: "commit message", parents: [target_branch, source_branch], tree: merge_index.write_tree(rugged))
end
end
def self.run_permission_checks(permissions_matrix)
permissions_matrix.each_pair do |role, matrix|
# Run through the entire matrix for this role in one test to avoid
# repeated setup.
#
# Expectations are given a custom failure message proc so that it's
# easier to identify which check(s) failed.
it "has the correct permissions for #{role}s" do
if role == :admin
user.update_attribute(:admin, true)
else
project.add_role(user, role)
end
aggregate_failures do
matrix.each do |action, allowed|
check = -> { access.send(:check_push_access!, changes[action]) }
if allowed
expect(&check).not_to raise_error,
-> { "expected #{action} to be allowed" }
else
expect(&check).to raise_error(Gitlab::GitAccess::UnauthorizedError),
-> { "expected #{action} to be disallowed" }
end
end
end
end
end
end
permissions_matrix = {
admin: {
push_new_branch: true,
push_master: true,
push_protected_branch: true,
push_remove_protected_branch: false,
push_tag: true,
push_new_tag: true,
push_all: true,
merge_into_protected_branch: true
},
master: {
push_new_branch: true,
push_master: true,
push_protected_branch: true,
push_remove_protected_branch: false,
push_tag: true,
push_new_tag: true,
push_all: true,
merge_into_protected_branch: true
},
developer: {
push_new_branch: true,
push_master: true,
push_protected_branch: false,
push_remove_protected_branch: false,
push_tag: false,
push_new_tag: true,
push_all: false,
merge_into_protected_branch: false
},
reporter: {
push_new_branch: false,
push_master: false,
push_protected_branch: false,
push_remove_protected_branch: false,
push_tag: false,
push_new_tag: false,
push_all: false,
merge_into_protected_branch: false
},
guest: {
push_new_branch: false,
push_master: false,
push_protected_branch: false,
push_remove_protected_branch: false,
push_tag: false,
push_new_tag: false,
push_all: false,
merge_into_protected_branch: false
}
}
[%w(feature exact), ['feat*', 'wildcard']].each do |protected_branch_name, protected_branch_type|
context do
before do
create(:protected_branch, name: protected_branch_name, project: project)
end
run_permission_checks(permissions_matrix)
end
context "when developers are allowed to push into the #{protected_branch_type} protected branch" do
before do
create(:protected_branch, :developers_can_push, name: protected_branch_name, project: project)
end
run_permission_checks(permissions_matrix.deep_merge(developer: { push_protected_branch: true, push_all: true, merge_into_protected_branch: true }))
end
context "developers are allowed to merge into the #{protected_branch_type} protected branch" do
before do
create(:protected_branch, :developers_can_merge, name: protected_branch_name, project: project)
end
context "when a merge request exists for the given source/target branch" do
context "when the merge request is in progress" do
before do
create(:merge_request, source_project: project, source_branch: unprotected_branch, target_branch: 'feature',
state: 'locked', in_progress_merge_commit_sha: merge_into_protected_branch)
end
run_permission_checks(permissions_matrix.deep_merge(developer: { merge_into_protected_branch: true }))
end
context "when the merge request is not in progress" do
before do
create(:merge_request, source_project: project, source_branch: unprotected_branch, target_branch: 'feature', in_progress_merge_commit_sha: nil)
end
run_permission_checks(permissions_matrix.deep_merge(developer: { merge_into_protected_branch: false }))
end
context "when a merge request does not exist for the given source/target branch" do
run_permission_checks(permissions_matrix.deep_merge(developer: { merge_into_protected_branch: false }))
end
end
end
context "when developers are allowed to push and merge into the #{protected_branch_type} protected branch" do
before do
create(:protected_branch, :developers_can_merge, :developers_can_push, name: protected_branch_name, project: project)
end
run_permission_checks(permissions_matrix.deep_merge(developer: { push_protected_branch: true, push_all: true, merge_into_protected_branch: true }))
end
context "when no one is allowed to push to the #{protected_branch_name} protected branch" do
before do
create(:protected_branch, :no_one_can_push, name: protected_branch_name, project: project)
end
run_permission_checks(permissions_matrix.deep_merge(developer: { push_protected_branch: false, push_all: false, merge_into_protected_branch: false },
master: { push_protected_branch: false, push_all: false, merge_into_protected_branch: false },
admin: { push_protected_branch: false, push_all: false, merge_into_protected_branch: false }))
end
end
context "when in a read-only GitLab instance" do
before do
create(:protected_branch, name: 'feature', project: project)
allow(Gitlab::Database).to receive(:read_only?) { true }
end
# Only check admin; if an admin can't do it, other roles can't either
matrix = permissions_matrix[:admin].dup
matrix.each { |key, _| matrix[key] = false }
run_permission_checks(admin: matrix)
end
end
describe 'build authentication abilities' do
let(:authentication_abilities) { build_authentication_abilities }
context 'when project is authorized' do
before do
project.add_reporter(user)
end
it { expect { push_access_check }.to raise_unauthorized(described_class::ERROR_MESSAGES[:upload]) }
end
context 'when unauthorized' do
context 'to public project' do
let(:project) { create(:project, :public, :repository) }
it { expect { push_access_check }.to raise_unauthorized(described_class::ERROR_MESSAGES[:upload]) }
end
context 'to internal project' do
let(:project) { create(:project, :internal, :repository) }
it { expect { push_access_check }.to raise_unauthorized(described_class::ERROR_MESSAGES[:upload]) }
end
context 'to private project' do
let(:project) { create(:project, :private, :repository) }
it { expect { push_access_check }.to raise_not_found }
end
end
end
context 'when the repository is read only' do
let(:project) { create(:project, :repository, :read_only) }
it 'denies push access' do
project.add_master(user)
expect { push_access_check }.to raise_unauthorized('The repository is temporarily read-only. Please try again later.')
end
end
describe 'deploy key permissions' do
let(:key) { create(:deploy_key, user: user, can_push: can_push) }
let(:actor) { key }
context 'when deploy_key can push' do
let(:can_push) { true }
context 'when project is authorized' do
before do
key.projects << project
end
it { expect { push_access_check }.not_to raise_error }
end
context 'when unauthorized' do
context 'to public project' do
let(:project) { create(:project, :public, :repository) }
it { expect { push_access_check }.to raise_unauthorized(described_class::ERROR_MESSAGES[:deploy_key_upload]) }
end
context 'to internal project' do
let(:project) { create(:project, :internal, :repository) }
it { expect { push_access_check }.to raise_not_found }
end
context 'to private project' do
let(:project) { create(:project, :private, :repository) }
it { expect { push_access_check }.to raise_not_found }
end
end
end
context 'when deploy_key cannot push' do
let(:can_push) { false }
context 'when project is authorized' do
before do
key.projects << project
end
it { expect { push_access_check }.to raise_unauthorized(described_class::ERROR_MESSAGES[:deploy_key_upload]) }
end
context 'when unauthorized' do
context 'to public project' do
let(:project) { create(:project, :public, :repository) }
it { expect { push_access_check }.to raise_unauthorized(described_class::ERROR_MESSAGES[:deploy_key_upload]) }
end
context 'to internal project' do
let(:project) { create(:project, :internal, :repository) }
it { expect { push_access_check }.to raise_not_found }
end
context 'to private project' do
let(:project) { create(:project, :private, :repository) }
it { expect { push_access_check }.to raise_not_found }
end
end
end
end
private
def raise_unauthorized(message)
raise_error(Gitlab::GitAccess::UnauthorizedError, message)
end
def raise_not_found
raise_error(Gitlab::GitAccess::NotFoundError,
Gitlab::GitAccess::ERROR_MESSAGES[:project_not_found])
end
def build_authentication_abilities
[
:read_project,
:build_download_code
]
end
def full_authentication_abilities
[
:read_project,
:download_code,
:push_code
]
end
end