arozos/mod/auth/oauth2/github.go

package oauth2

import (
	"encoding/json"
	"io/ioutil"
	"net/http"
	"time"

	"golang.org/x/oauth2"
	"golang.org/x/oauth2/github"
)

type GithubField struct {
	Login                   string      `json:"login"`
	ID                      int         `json:"id"`
	NodeID                  string      `json:"node_id"`
	AvatarURL               string      `json:"avatar_url"`
	GravatarID              string      `json:"gravatar_id"`
	URL                     string      `json:"url"`
	HTMLURL                 string      `json:"html_url"`
	FollowersURL            string      `json:"followers_url"`
	FollowingURL            string      `json:"following_url"`
	GistsURL                string      `json:"gists_url"`
	StarredURL              string      `json:"starred_url"`
	SubscriptionsURL        string      `json:"subscriptions_url"`
	OrganizationsURL        string      `json:"organizations_url"`
	ReposURL                string      `json:"repos_url"`
	EventsURL               string      `json:"events_url"`
	ReceivedEventsURL       string      `json:"received_events_url"`
	Type                    string      `json:"type"`
	SiteAdmin               bool        `json:"site_admin"`
	Name                    string      `json:"name"`
	Company                 string      `json:"company"`
	Blog                    string      `json:"blog"`
	Location                string      `json:"location"`
	Email                   interface{} `json:"email"`
	Hireable                interface{} `json:"hireable"`
	Bio                     string      `json:"bio"`
	TwitterUsername         interface{} `json:"twitter_username"`
	PublicRepos             int         `json:"public_repos"`
	PublicGists             int         `json:"public_gists"`
	Followers               int         `json:"followers"`
	Following               int         `json:"following"`
	CreatedAt               time.Time   `json:"created_at"`
	UpdatedAt               time.Time   `json:"updated_at"`
	PrivateGists            int         `json:"private_gists"`
	TotalPrivateRepos       int         `json:"total_private_repos"`
	OwnedPrivateRepos       int         `json:"owned_private_repos"`
	DiskUsage               int         `json:"disk_usage"`
	Collaborators           int         `json:"collaborators"`
	TwoFactorAuthentication bool        `json:"two_factor_authentication"`
	Plan                    struct {
		Name          string `json:"name"`
		Space         int    `json:"space"`
		Collaborators int    `json:"collaborators"`
		PrivateRepos  int    `json:"private_repos"`
	} `json:"plan"`
}

func githubScope() []string {
	return []string{"read:user"}
}

func githubEndpoint() oauth2.Endpoint {
	return github.Endpoint
}

func githubUserInfo(accessToken string) (string, error) {
	client := &http.Client{}
	req, err := http.NewRequest("GET", "https://api.github.com/user", nil)
	if err != nil {
		return "", err
	}
	req.Header.Set("Authorization", "token "+accessToken)
	req.Header.Set("Accept", "application/vnd.github.v3+json")
	response, err := client.Do(req)
	if err != nil {
		return "", err
	}
	defer response.Body.Close()
	contents, err := ioutil.ReadAll(response.Body)
	var data GithubField
	json.Unmarshal([]byte(contents), &data)

	return data.Login + "@github.com", err
}