Add authentication and metrics

internal/ghost/api.go

@@ -0,0 +1,165 @@
+package ghost
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/http/cookiejar"
+	"net/url"
+	"time"
+)
+
+type GhostAPI struct {
+	BaseURL string
+	Jar     *cookiejar.Jar
+}
+
+func (api *GhostAPI) get(path string, query string) (response *http.Response, err error) {
+	requestUrl, err := url.JoinPath(api.BaseURL, path)
+	if err != nil {
+		return nil, err
+	}
+
+	if api.Jar == nil {
+		api.Jar, err = cookiejar.New(nil)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	client := http.Client{Jar: api.Jar}
+
+	response, err = client.Get(requestUrl + query)
+	if err != nil {
+		return response, err
+	}
+
+	if response.StatusCode > 299 {
+		return response, fmt.Errorf("server returned status %d", response.StatusCode)
+	}
+
+	return response, nil
+}
+
+func (api *GhostAPI) post(path string, data interface{}) (response *http.Response, err error) {
+	requestUrl, err := url.JoinPath(api.BaseURL, path)
+	if err != nil {
+		return nil, err
+	}
+
+	if api.Jar == nil {
+		api.Jar, err = cookiejar.New(nil)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	client := http.Client{Jar: api.Jar}
+
+	marshaledData, err := json.Marshal(data)
+	if err != nil {
+		return nil, err
+	}
+
+	dataReader := bytes.NewReader(marshaledData)
+
+	response, err = client.Post(requestUrl, "application/json", dataReader)
+	if err != nil {
+		return response, err
+	}
+
+	if response.StatusCode > 299 {
+		return response, fmt.Errorf("server returned status %d", response.StatusCode)
+	}
+
+	return response, nil
+}
+
+type LoginRequest struct {
+	Username string `json:"username"`
+	Password string `json:"password"`
+}
+
+func (api *GhostAPI) Login(username string, password string) (token string, err error) {
+	data := LoginRequest{
+		Username: username,
+		Password: password,
+	}
+
+	response, err := api.post("/api/admin/session/", data)
+	if err != nil {
+		return "", err
+	}
+
+	cookies := response.Cookies()
+
+	for _, cookie := range cookies {
+		if cookie.Name != "ghost-admin-api-session" {
+			continue
+		}
+
+		token = cookie.Value
+		break
+	}
+
+	return token, nil
+}
+
+type UserData struct {
+	Users []User `json:"users"`
+}
+
+type User struct {
+	ID                                   string    `json:"id"`
+	Name                                 string    `json:"name"`
+	Slug                                 string    `json:"slug"`
+	Email                                string    `json:"email"`
+	ProfileImage                         string    `json:"profile_image"`
+	CoverImage                           string    `json:"cover_image"`
+	Bio                                  string    `json:"bio"`
+	Website                              string    `json:"website"`
+	Location                             string    `json:"location"`
+	Facebook                             string    `json:"facebook"`
+	Twitter                              string    `json:"twitter"`
+	Accessibility                        string    `json:"accessibility"`
+	Status                               string    `json:"status"`
+	MetaTitle                            string    `json:"meta_title"`
+	MetaDescription                      string    `json:"meta_description"`
+	Tour                                 string    `json:"tour"`
+	LastSeen                             time.Time `json:"last_seen"`
+	CommentNotifications                 bool      `json:"comment_notifications"`
+	FreeMemberSignupNotification         bool      `json:"free_member_signup_notification"`
+	PaidSubscriptionStartedNotification  bool      `json:"paid_subscription_started_notification"`
+	PaidSubscriptionCanceledNotification bool      `json:"paid_subscription_canceled_notification"`
+	CreatedAt                            time.Time `json:"created_at"`
+	UpdatedAt                            time.Time `json:"updated_at"`
+	Roles                                []Role    `json:"roles"`
+	Url                                  string    `json:"url"`
+}
+
+type Role struct {
+	ID          string    `json:"id"`
+	Name        string    `json:"name"`
+	Description string    `json:"description"`
+	CreatedAt   time.Time `json:"created_at"`
+	UpdatedAt   time.Time `json:"updated_at"`
+}
+
+func (api *GhostAPI) UserSelf() (user *UserData, err error) {
+	response, err := api.get("/api/admin/users/me", "?include=roles")
+	if err != nil {
+		return nil, err
+	}
+
+	user = &UserData{}
+
+	decoder := json.NewDecoder(response.Body)
+
+	err = decoder.Decode(user)
+	if err != nil {
+		return nil, err
+	}
+
+	return user, nil
+}