agola/internal/services/gateway/webhook.go

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2019-02-21 16:58:25 +00:00
// Copyright 2019 Sorint.lab
//
// 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 gateway
import (
"context"
"fmt"
"net/http"
"net/url"
"path"
"github.com/sorintlab/agola/internal/config"
gitsource "github.com/sorintlab/agola/internal/gitsources"
"github.com/sorintlab/agola/internal/runconfig"
csapi "github.com/sorintlab/agola/internal/services/configstore/api"
"github.com/sorintlab/agola/internal/services/gateway/common"
rsapi "github.com/sorintlab/agola/internal/services/runservice/scheduler/api"
"github.com/sorintlab/agola/internal/services/types"
"github.com/sorintlab/agola/internal/util"
"github.com/pkg/errors"
"go.uber.org/zap"
)
const (
agolaDefaultConfigPath = ".agola/config.yml"
// List of runs annotations
AnnotationEventType = "event_type"
AnnotationRunType = "runtype"
AnnotationProjectID = "projectid"
AnnotationUserID = "userid"
// AnnotationVirtualBranch represent a "virtual branch": i.e a normal branch, a pr (with name pr-$prid), a tag (with name tag-tagname)
AnnotationVirtualBranch = "virtual_branch"
AnnotationCommitSHA = "commit_sha"
AnnotationRef = "ref"
AnnotationSender = "sender"
AnnotationMessage = "message"
AnnotationCommitLink = "commit_link"
AnnotationCompareLink = "compare_link"
AnnotationBranch = "branch"
AnnotationBranchLink = "branch_link"
AnnotationTag = "tag"
AnnotationTagLink = "tag_link"
AnnotationPullRequestID = "pull_request_id"
AnnotationPullRequestLink = "pull_request_link"
)
func genAnnotationVirtualBranch(webhookData *types.WebhookData) string {
switch webhookData.Event {
case types.WebhookEventPush:
return "branch-" + webhookData.Branch
case types.WebhookEventTag:
return "tag-" + webhookData.Tag
case types.WebhookEventPullRequest:
return "pr-" + webhookData.PullRequestID
}
panic(fmt.Errorf("invalid webhook event type: %q", webhookData.Event))
}
func genGroup(baseGroupID string, webhookData *types.WebhookData) string {
// we pathescape the branch name to handle branches with slashes and make the
// branch a single path entry
switch webhookData.Event {
case types.WebhookEventPush:
return path.Join(baseGroupID, "branch-"+url.PathEscape(webhookData.Branch))
case types.WebhookEventTag:
return path.Join(baseGroupID, "tag-"+url.PathEscape(webhookData.Tag))
case types.WebhookEventPullRequest:
return path.Join(baseGroupID, "pr-"+url.PathEscape(webhookData.PullRequestID))
}
panic(fmt.Errorf("invalid webhook event type: %q", webhookData.Event))
}
type webhooksHandler struct {
log *zap.SugaredLogger
configstoreClient *csapi.Client
runserviceClient *rsapi.Client
apiExposedURL string
}
func (h *webhooksHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
code, userErr, err := h.handleWebhook(r)
if err != nil {
h.log.Errorf("err: %+v", err)
http.Error(w, userErr, code)
}
}
func (h *webhooksHandler) handleWebhook(r *http.Request) (int, string, error) {
ctx := r.Context()
projectID := r.URL.Query().Get("projectid")
defer r.Body.Close()
var gitSource gitsource.GitSource
project, _, err := h.configstoreClient.GetProject(ctx, projectID)
if err != nil {
return http.StatusBadRequest, "", errors.Wrapf(err, "failed to get project %s", projectID)
}
h.log.Debugf("project: %s", util.Dump(project))
user, _, err := h.configstoreClient.GetUserByLinkedAccount(ctx, project.LinkedAccountID)
if err != nil {
return http.StatusInternalServerError, "", errors.Wrapf(err, "failed to get user by linked account %q", project.LinkedAccountID)
}
la := user.LinkedAccounts[project.LinkedAccountID]
h.log.Infof("la: %s", util.Dump(la))
if la == nil {
return http.StatusInternalServerError, "", errors.Errorf("linked account %q in user %q doesn't exist", project.LinkedAccountID, user.UserName)
}
rs, _, err := h.configstoreClient.GetRemoteSource(ctx, la.RemoteSourceID)
if err != nil {
return http.StatusInternalServerError, "", errors.Wrapf(err, "failed to get remote source %q", la.RemoteSourceID)
}
gitSource, err = common.GetGitSource(rs, la)
if err != nil {
return http.StatusInternalServerError, "", errors.Wrapf(err, "failed to create gitea client")
}
sshPrivKey := project.SSHPrivateKey
cloneURL := project.CloneURL
skipSSHHostKeyCheck := project.SkipSSHHostKeyCheck
runType := types.RunTypeProject
webhookData, err := gitSource.ParseWebhook(r)
if err != nil {
return http.StatusBadRequest, "", errors.Wrapf(err, "failed to parse webhook")
}
webhookData.ProjectID = projectID
h.log.Infof("webhookData: %s", util.Dump(webhookData))
var data []byte
err = util.ExponentialBackoff(util.FetchFileBackoff, func() (bool, error) {
var err error
data, err = gitSource.GetFile(webhookData.Repo.Owner, webhookData.Repo.Name, webhookData.CommitSHA, agolaDefaultConfigPath)
if err == nil {
return true, nil
}
h.log.Errorf("get file err: %v", err)
return false, nil
})
if err != nil {
return http.StatusInternalServerError, "", errors.Wrapf(err, "failed to fetch config file")
}
h.log.Debug("data: %s", data)
gitURL, err := util.ParseGitURL(cloneURL)
if err != nil {
return http.StatusInternalServerError, "", errors.Wrapf(err, "failed to parse clone url")
}
env := map[string]string{
"CI": "true",
"AGOLA_SSHPRIVKEY": sshPrivKey,
"AGOLA_REPOSITORY_URL": cloneURL,
"AGOLA_GIT_HOST": gitURL.Host,
"AGOLA_GIT_REF": webhookData.Ref,
"AGOLA_GIT_COMMITSHA": webhookData.CommitSHA,
}
if skipSSHHostKeyCheck {
env["AGOLA_SKIPSSHHOSTKEYCHECK"] = "1"
}
annotations := map[string]string{
AnnotationProjectID: webhookData.ProjectID,
AnnotationRunType: string(runType),
AnnotationEventType: string(webhookData.Event),
AnnotationVirtualBranch: genAnnotationVirtualBranch(webhookData),
AnnotationCommitSHA: webhookData.CommitSHA,
AnnotationRef: webhookData.Ref,
AnnotationSender: webhookData.Sender,
AnnotationMessage: webhookData.Message,
AnnotationCommitLink: webhookData.CommitLink,
AnnotationCompareLink: webhookData.CompareLink,
}
if webhookData.Event == types.WebhookEventPush {
annotations[AnnotationBranch] = webhookData.Branch
annotations[AnnotationBranchLink] = webhookData.BranchLink
}
if webhookData.Event == types.WebhookEventTag {
annotations[AnnotationTag] = webhookData.Tag
annotations[AnnotationTagLink] = webhookData.TagLink
}
if webhookData.Event == types.WebhookEventPullRequest {
annotations[AnnotationPullRequestID] = webhookData.PullRequestID
annotations[AnnotationPullRequestLink] = webhookData.PullRequestLink
}
group := genGroup(webhookData.ProjectID, webhookData)
if err := h.createRuns(ctx, data, group, annotations, env); err != nil {
return http.StatusInternalServerError, "", errors.Wrapf(err, "failed to create run")
}
//if err := gitSource.CreateStatus(webhookData.Repo.Owner, webhookData.Repo.Name, webhookData.CommitSHA, gitsource.CommitStatusPending, "localhost:8080", "build %s", "agola"); err != nil {
// h.log.Errorf("failed to update commit status: %v", err)
//}
return 0, "", nil
}
func (h *webhooksHandler) createRuns(ctx context.Context, configData []byte, group string, annotations, env map[string]string) error {
config, err := config.ParseConfig([]byte(configData))
if err != nil {
return err
}
//h.log.Debugf("config: %v", util.Dump(config))
//h.log.Debugf("pipeline: %s", createRunOpts.PipelineName)
for _, pipeline := range config.Pipelines {
rc := runconfig.GenRunConfig(config, pipeline.Name, env)
h.log.Debugf("rc: %s", util.Dump(rc))
h.log.Infof("group: %s", group)
createRunReq := &rsapi.RunCreateRequest{
RunConfig: rc,
Group: group,
Annotations: annotations,
}
if _, err := h.runserviceClient.CreateRun(ctx, createRunReq); err != nil {
return err
}
}
return nil
}