package handler import ( "log" "net/http" "strings" "github.com/drone/drone/plugin/remote" "github.com/drone/drone/server/datastore" "github.com/drone/drone/server/worker" "github.com/drone/drone/shared/build/script" "github.com/drone/drone/shared/httputil" "github.com/drone/drone/shared/model" "github.com/goji/context" "github.com/zenazn/goji/web" ) // PostHook accepts a post-commit hook and parses the payload // in order to trigger a build. The payload is specified to the // remote system (ie GitHub) and will therefore get parsed by // the appropriate remote plugin. // // GET /api/hook/:host // func PostHook(c web.C, w http.ResponseWriter, r *http.Request) { var ctx = context.FromC(c) var host = c.URLParams["host"] var token = r.FormValue("token") var remote = remote.Lookup(host) if remote == nil { w.WriteHeader(http.StatusNotFound) return } // parse the hook payload hook, err := remote.ParseHook(r) if err != nil { w.WriteHeader(http.StatusBadRequest) return } // in some cases we have neither a hook nor error. An example // would be GitHub sending a ping request to the URL, in which // case we'll just exit quiely with an 'OK' if hook == nil || strings.Contains(hook.Message, "[CI SKIP]") { w.WriteHeader(http.StatusOK) return } // fetch the repository from the database repo, err := datastore.GetRepoName(ctx, remote.GetHost(), hook.Owner, hook.Repo) if err != nil { w.WriteHeader(http.StatusNotFound) return } // each hook contains a token to verify the sender. If the token // is not provided or does not match, exit if len(repo.Token) == 0 || repo.Token != token { log.Printf("Rejected post commit hook for %s. Token mismatch\n", repo.Name) w.WriteHeader(http.StatusUnauthorized) return } if repo.Active == false || (repo.PostCommit == false && len(hook.PullRequest) == 0) || (repo.PullRequest == false && len(hook.PullRequest) != 0) { w.WriteHeader(http.StatusNotFound) return } // fetch the user from the database that owns this repo user, err := datastore.GetUser(ctx, repo.UserID) if err != nil { w.WriteHeader(http.StatusNotFound) return } // featch the .drone.yml file from the database yml, err := remote.GetScript(user, repo, hook) if err != nil { w.WriteHeader(http.StatusBadRequest) return } // verify the commit hooks branch matches the list of approved // branches (unless it is a pull request). Note that we don't really // care if parsing the yaml fails here. s, _ := script.ParseBuild(string(yml)) if len(hook.PullRequest) == 0 && !s.MatchBranch(hook.Branch) { w.WriteHeader(http.StatusOK) return } commit := model.Commit{ RepoID: repo.ID, Status: model.StatusEnqueue, Sha: hook.Sha, Branch: hook.Branch, PullRequest: hook.PullRequest, Timestamp: hook.Timestamp, Message: hook.Message, Config: string(yml), } commit.SetAuthor(hook.Author) // inserts the commit into the database if err := datastore.PostCommit(ctx, &commit); err != nil { w.WriteHeader(http.StatusBadRequest) return } owner, err := datastore.GetUser(ctx, repo.UserID) if err != nil { w.WriteHeader(http.StatusBadRequest) return } // drop the items on the queue go worker.Do(ctx, &worker.Work{ User: owner, Repo: repo, Commit: &commit, Host: httputil.GetURL(r), }) w.WriteHeader(http.StatusOK) }