drone/app/api/controller/githook/client.go

142 lines
3.8 KiB
Go

// Copyright 2023 Harness, Inc.
//
// 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.
package githook
import (
"context"
"errors"
"fmt"
"github.com/harness/gitness/app/githook"
"github.com/harness/gitness/git"
"github.com/harness/gitness/git/hook"
"github.com/harness/gitness/store"
"github.com/harness/gitness/types"
"github.com/rs/zerolog/log"
)
var _ hook.ClientFactory = (*ControllerClientFactory)(nil)
var _ hook.Client = (*ControllerClient)(nil)
// ControllerClientFactory creates clients that directly call the controller to execute githooks.
type ControllerClientFactory struct {
githookCtrl *Controller
git git.Interface
}
func (f *ControllerClientFactory) NewClient(envVars map[string]string) (hook.Client, error) {
payload, err := hook.LoadPayloadFromMap[githook.Payload](envVars)
if err != nil {
return nil, fmt.Errorf("failed to load payload from provided map of environment variables: %w", err)
}
// ensure we return disabled message in case it's explicitly disabled
if payload.Disabled {
return hook.NewNoopClient([]string{"hook disabled"}), nil
}
if err := payload.Validate(); err != nil {
return nil, fmt.Errorf("payload validation failed: %w", err)
}
return &ControllerClient{
baseInput: githook.GetInputBaseFromPayload(payload),
githookCtrl: f.githookCtrl,
git: f.git,
}, nil
}
// ControllerClient directly calls the controller to execute githooks.
type ControllerClient struct {
baseInput types.GithookInputBase
githookCtrl *Controller
git RestrictedGIT
}
func (c *ControllerClient) PreReceive(
ctx context.Context,
in hook.PreReceiveInput,
) (hook.Output, error) {
log.Ctx(ctx).Debug().Int64("repo_id", c.baseInput.RepoID).Msg("calling pre-receive")
out, err := c.githookCtrl.PreReceive(
ctx,
c.git, // Harness doesn't require any custom git connector.
nil, // TODO: update once githooks are auth protected
types.GithookPreReceiveInput{
GithookInputBase: c.baseInput,
PreReceiveInput: in,
},
)
if err != nil {
return hook.Output{}, translateControllerError(err)
}
return out, nil
}
func (c *ControllerClient) Update(
ctx context.Context,
in hook.UpdateInput,
) (hook.Output, error) {
log.Ctx(ctx).Debug().Int64("repo_id", c.baseInput.RepoID).Msg("calling update")
out, err := c.githookCtrl.Update(
ctx,
c.git, // Harness doesn't require any custom git connector.
nil, // TODO: update once githooks are auth protected
types.GithookUpdateInput{
GithookInputBase: c.baseInput,
UpdateInput: in,
},
)
if err != nil {
return hook.Output{}, translateControllerError(err)
}
return out, nil
}
func (c *ControllerClient) PostReceive(
ctx context.Context,
in hook.PostReceiveInput,
) (hook.Output, error) {
log.Ctx(ctx).Debug().Int64("repo_id", c.baseInput.RepoID).Msg("calling post-receive")
out, err := c.githookCtrl.PostReceive(
ctx,
c.git, // Harness doesn't require any custom git connector.
nil, // TODO: update once githooks are auth protected
types.GithookPostReceiveInput{
GithookInputBase: c.baseInput,
PostReceiveInput: in,
},
)
if err != nil {
return hook.Output{}, translateControllerError(err)
}
return out, nil
}
func translateControllerError(err error) error {
if errors.Is(err, store.ErrResourceNotFound) {
return hook.ErrNotFound
}
return err
}