Fix GitHub teams for large orgs

providers/github.go

@@ -8,6 +8,7 @@ import (
 	"net/http"
 	"net/url"
 	"path"
+	"regexp"
 	"strconv"
 	"strings"
 )
@@ -69,7 +70,7 @@ func (p *GitHubProvider) hasOrg(accessToken string) (bool, error) {
 	pn := 1
 	for {
 		params := url.Values{
-			"limit": {"200"},
+			"limit": {"100"},
 			"page":  {strconv.Itoa(pn)},
 		}
 
@@ -134,7 +135,7 @@ func (p *GitHubProvider) hasOrgAndTeam(accessToken string) (bool, error) {
 	}
 
 	params := url.Values{
-		"limit": {"200"},
+		"limit": {"100"},
 	}
 
 	endpoint := &url.URL{
@@ -143,45 +144,57 @@ func (p *GitHubProvider) hasOrgAndTeam(accessToken string) (bool, error) {
 		Path:     path.Join(p.ValidateURL.Path, "/user/teams"),
 		RawQuery: params.Encode(),
 	}
-	req, _ := http.NewRequest("GET", endpoint.String(), nil)
-	req.Header.Set("Accept", "application/vnd.github.v3+json")
-	req.Header.Set("Authorization", fmt.Sprintf("token %s", accessToken))
-	resp, err := http.DefaultClient.Do(req)
-	if err != nil {
-		return false, err
-	}
-
-	body, err := ioutil.ReadAll(resp.Body)
-	resp.Body.Close()
-	if err != nil {
-		return false, err
-	}
-	if resp.StatusCode != 200 {
-		return false, fmt.Errorf(
-			"got %d from %q %s", resp.StatusCode, endpoint.String(), body)
-	}
-
-	if err := json.Unmarshal(body, &teams); err != nil {
-		return false, fmt.Errorf("%s unmarshaling %s", err, body)
-	}
+	team_url := endpoint.String()
 
+	pattern := regexp.MustCompile(`<([^>]+)>; rel="next"`)
 	var hasOrg bool
 	presentOrgs := make(map[string]bool)
 	var presentTeams []string
-	for _, team := range teams {
-		presentOrgs[team.Org.Login] = true
-		if p.Org == team.Org.Login {
-			hasOrg = true
-			ts := strings.Split(p.Team, ",")
-			for _, t := range ts {
-				if t == team.Slug {
-					log.Printf("Found Github Organization:%q Team:%q (Name:%q)", team.Org.Login, team.Slug, team.Name)
-					return true, nil
+	for {
+		req, _ := http.NewRequest("GET", team_url, nil)
+		req.Header.Set("Accept", "application/vnd.github.hellcat-preview+json")
+		req.Header.Set("Authorization", fmt.Sprintf("token %s", accessToken))
+		resp, err := http.DefaultClient.Do(req)
+		if err != nil {
+			return false, err
+		}
+
+		body, err := ioutil.ReadAll(resp.Body)
+		resp.Body.Close()
+		if err != nil {
+			return false, err
+		}
+		if resp.StatusCode != 200 {
+			return false, fmt.Errorf(
+				"got %d from %q %s", resp.StatusCode, endpoint.String(), body)
+		}
+
+		if err := json.Unmarshal(body, &teams); err != nil {
+			return false, fmt.Errorf("%s unmarshaling %s", err, body)
+		}
+
+		for _, team := range teams {
+			presentOrgs[team.Org.Login] = true
+			if p.Org == team.Org.Login {
+				hasOrg = true
+				ts := strings.Split(p.Team, ",")
+				for _, t := range ts {
+					if t == team.Slug {
+						log.Printf("Found Github Organization:%q Team:%q (Name:%q)", team.Org.Login, team.Slug, team.Name)
+						return true, nil
+					}
 				}
+				presentTeams = append(presentTeams, team.Slug)
 			}
-			presentTeams = append(presentTeams, team.Slug)
 		}
+
+		matches := pattern.FindStringSubmatch(resp.Header["Link"][0])
+		if len(matches) == 0 {
+			break
+		}
+		team_url = matches[1]
 	}
+
 	if hasOrg {
 		log.Printf("Missing Team:%q from Org:%q in teams: %v", p.Team, p.Org, presentTeams)
 	} else {

providers/github_test.go

@@ -31,7 +31,7 @@ func testGitHubBackend(payload []string) *httptest.Server {
 	pathToQueryMap := map[string][]string{
 		"/user":        []string{""},
 		"/user/emails": []string{""},
-		"/user/orgs":   []string{"limit=200&page=1", "limit=200&page=2", "limit=200&page=3"},
+		"/user/orgs":   []string{"limit=100&page=1", "limit=100&page=2", "limit=100&page=3"},
 	}
 
 	return httptest.NewServer(http.HandlerFunc(