forked from grafana/grafana
/
github_oauth.go
293 lines (236 loc) · 7.01 KB
/
github_oauth.go
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package social
import (
"context"
"encoding/json"
"errors"
"fmt"
"net/http"
"regexp"
"strings"
"golang.org/x/oauth2"
"github.com/grafana/grafana/pkg/models/roletype"
"github.com/grafana/grafana/pkg/util/errutil"
)
type SocialGithub struct {
*SocialBase
allowedOrganizations []string
apiUrl string
teamIds []int
skipOrgRoleSync bool
}
type GithubTeam struct {
Id int `json:"id"`
Slug string `json:"slug"`
URL string `json:"html_url"`
Organization struct {
Login string `json:"login"`
} `json:"organization"`
}
var (
ErrMissingTeamMembership = errutil.NewBase(errutil.StatusUnauthorized,
"auth.missing_team",
errutil.WithPublicMessage(
"User is not a member of one of the required teams. Please contact identity provider administrator."))
ErrMissingOrganizationMembership = errutil.NewBase(errutil.StatusUnauthorized,
"auth.missing_organization",
errutil.WithPublicMessage(
"User is not a member of one of the required organizations. Please contact identity provider administrator."))
)
func (s *SocialGithub) IsTeamMember(ctx context.Context, client *http.Client) bool {
if len(s.teamIds) == 0 {
return true
}
teamMemberships, err := s.FetchTeamMemberships(ctx, client)
if err != nil {
return false
}
for _, teamId := range s.teamIds {
for _, membership := range teamMemberships {
if teamId == membership.Id {
return true
}
}
}
return false
}
func (s *SocialGithub) IsOrganizationMember(ctx context.Context,
client *http.Client, organizationsUrl string) bool {
if len(s.allowedOrganizations) == 0 {
return true
}
organizations, err := s.FetchOrganizations(ctx, client, organizationsUrl)
if err != nil {
return false
}
for _, allowedOrganization := range s.allowedOrganizations {
for _, organization := range organizations {
if strings.EqualFold(organization, allowedOrganization) {
return true
}
}
}
return false
}
func (s *SocialGithub) FetchPrivateEmail(ctx context.Context, client *http.Client) (string, error) {
type Record struct {
Email string `json:"email"`
Primary bool `json:"primary"`
Verified bool `json:"verified"`
}
response, err := s.httpGet(ctx, client, fmt.Sprintf(s.apiUrl+"/emails"))
if err != nil {
return "", fmt.Errorf("Error getting email address: %s", err)
}
var records []Record
err = json.Unmarshal(response.Body, &records)
if err != nil {
return "", fmt.Errorf("Error getting email address: %s", err)
}
var email = ""
for _, record := range records {
if record.Primary {
email = record.Email
}
}
return email, nil
}
func (s *SocialGithub) FetchTeamMemberships(ctx context.Context, client *http.Client) ([]GithubTeam, error) {
url := fmt.Sprintf(s.apiUrl + "/teams?per_page=100")
hasMore := true
teams := make([]GithubTeam, 0)
for hasMore {
response, err := s.httpGet(ctx, client, url)
if err != nil {
return nil, fmt.Errorf("Error getting team memberships: %s", err)
}
var records []GithubTeam
err = json.Unmarshal(response.Body, &records)
if err != nil {
return nil, fmt.Errorf("Error getting team memberships: %s", err)
}
teams = append(teams, records...)
url, hasMore = s.HasMoreRecords(response.Headers)
}
return teams, nil
}
func (s *SocialGithub) HasMoreRecords(headers http.Header) (string, bool) {
value, exists := headers["Link"]
if !exists {
return "", false
}
pattern := regexp.MustCompile(`<([^>]+)>; rel="next"`)
matches := pattern.FindStringSubmatch(value[0])
if matches == nil {
return "", false
}
url := matches[1]
return url, true
}
func (s *SocialGithub) FetchOrganizations(ctx context.Context, client *http.Client, organizationsUrl string) ([]string, error) {
url := organizationsUrl
hasMore := true
logins := make([]string, 0)
type Record struct {
Login string `json:"login"`
}
for hasMore {
response, err := s.httpGet(ctx, client, url)
if err != nil {
return nil, fmt.Errorf("error getting organizations: %s", err)
}
var records []Record
err = json.Unmarshal(response.Body, &records)
if err != nil {
return nil, fmt.Errorf("error getting organizations: %s", err)
}
for _, record := range records {
logins = append(logins, record.Login)
}
url, hasMore = s.HasMoreRecords(response.Headers)
}
return logins, nil
}
func (s *SocialGithub) UserInfo(ctx context.Context, client *http.Client, token *oauth2.Token) (*BasicUserInfo, error) {
var data struct {
Id int `json:"id"`
Login string `json:"login"`
Email string `json:"email"`
Name string `json:"name"`
}
response, err := s.httpGet(ctx, client, s.apiUrl)
if err != nil {
return nil, fmt.Errorf("error getting user info: %s", err)
}
if err = json.Unmarshal(response.Body, &data); err != nil {
return nil, fmt.Errorf("error unmarshalling user info: %s", err)
}
teamMemberships, err := s.FetchTeamMemberships(ctx, client)
if err != nil {
return nil, fmt.Errorf("error getting user teams: %s", err)
}
teams := convertToGroupList(teamMemberships)
var role roletype.RoleType
var isGrafanaAdmin *bool = nil
if !s.skipOrgRoleSync {
var grafanaAdmin bool
role, grafanaAdmin, err = s.extractRoleAndAdmin(response.Body, teams)
if err != nil {
return nil, err
}
if s.allowAssignGrafanaAdmin {
isGrafanaAdmin = &grafanaAdmin
}
}
// we skip allowing assignment of GrafanaAdmin if skipOrgRoleSync is present
if s.allowAssignGrafanaAdmin && s.skipOrgRoleSync {
s.log.Debug("allowAssignGrafanaAdmin and skipOrgRoleSync are both set, Grafana Admin role will not be synced, consider setting one or the other")
}
userInfo := &BasicUserInfo{
Name: data.Login,
Login: data.Login,
Id: fmt.Sprintf("%d", data.Id),
Email: data.Email,
Role: role,
Groups: teams,
IsGrafanaAdmin: isGrafanaAdmin,
}
if data.Name != "" {
userInfo.Name = data.Name
}
organizationsUrl := fmt.Sprintf(s.apiUrl + "/orgs?per_page=100")
if !s.IsTeamMember(ctx, client) {
return nil, ErrMissingTeamMembership.Errorf("User is not a member of any of the allowed teams: %v", s.teamIds)
}
if !s.IsOrganizationMember(ctx, client, organizationsUrl) {
return nil, ErrMissingOrganizationMembership.Errorf(
"User is not a member of any of the allowed organizations: %v",
s.allowedOrganizations)
}
if userInfo.Email == "" {
userInfo.Email, err = s.FetchPrivateEmail(ctx, client)
if err != nil {
return nil, err
}
}
return userInfo, nil
}
func (t *GithubTeam) GetShorthand() (string, error) {
if t.Organization.Login == "" || t.Slug == "" {
return "", errors.New("Error getting team shorthand")
}
return fmt.Sprintf("@%s/%s", t.Organization.Login, t.Slug), nil
}
func convertToGroupList(t []GithubTeam) []string {
groups := make([]string, 0)
for _, team := range t {
// Group shouldn't be empty string, otherwise team sync will not work properly
if team.URL != "" {
groups = append(groups, team.URL)
}
teamShorthand, _ := team.GetShorthand()
if teamShorthand != "" {
groups = append(groups, teamShorthand)
}
}
return groups
}