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package customaction
import (
"bytes"
"errors"
"io"
"io/ioutil"
"net/http"
"gitlab.com/gitlab-org/gitlab-shell/internal/command/readwriter"
"gitlab.com/gitlab-org/gitlab-shell/internal/config"
"gitlab.com/gitlab-org/gitlab-shell/internal/gitlabnet"
"gitlab.com/gitlab-org/gitlab-shell/internal/gitlabnet/accessverifier"
)
type Request struct {
SecretToken []byte `json:"secret_token"`
Data accessverifier.CustomPayloadData `json:"data"`
Output []byte `json:"output"`
}
type Response struct {
Result []byte `json:"result"`
Message string `json:"message"`
}
type Command struct {
Config *config.Config
ReadWriter *readwriter.ReadWriter
}
func (c *Command) Execute(response *accessverifier.Response) error {
data := response.Payload.Data
apiEndpoints := data.ApiEndpoints
if len(apiEndpoints) == 0 {
return errors.New("Custom action error: Empty API endpoints")
}
return c.processApiEndpoints(response)
}
func (c *Command) processApiEndpoints(response *accessverifier.Response) error {
client, err := gitlabnet.GetClient(c.Config)
if err != nil {
return err
}
data := response.Payload.Data
request := &Request{Data: data}
request.Data.UserId = response.Who
for _, endpoint := range data.ApiEndpoints {
response, err := c.performRequest(client, endpoint, request)
if err != nil {
return err
}
if err = c.displayResult(response.Result); err != nil {
return err
}
// In the context of the git push sequence of events, it's necessary to read
// stdin in order to capture output to pass onto subsequent commands
output, err := ioutil.ReadAll(c.ReadWriter.In)
if err != nil {
return err
}
request.Output = output
}
return nil
}
func (c *Command) performRequest(client *gitlabnet.GitlabClient, endpoint string, request *Request) (*Response, error) {
response, err := client.DoRequest(http.MethodPost, endpoint, request)
if err != nil {
return nil, err
}
defer response.Body.Close()
cr := &Response{}
if err := gitlabnet.ParseJSON(response, cr); err != nil {
return nil, err
}
return cr, nil
}
func (c *Command) displayResult(result []byte) error {
_, err := io.Copy(c.ReadWriter.Out, bytes.NewReader(result))
return err
}
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