2019-12-13 18:08:26 +00:00
|
|
|
// Package mastodon provides functions and structs for accessing the mastodon API.
|
|
|
|
package mastodon
|
|
|
|
|
|
|
|
import (
|
|
|
|
"bytes"
|
|
|
|
"context"
|
|
|
|
"encoding/json"
|
|
|
|
"errors"
|
|
|
|
"fmt"
|
|
|
|
"io"
|
|
|
|
"mime/multipart"
|
|
|
|
"net/http"
|
|
|
|
"net/url"
|
|
|
|
"os"
|
|
|
|
"path"
|
|
|
|
"path/filepath"
|
|
|
|
"strings"
|
|
|
|
|
|
|
|
"github.com/tomnomnom/linkheader"
|
|
|
|
)
|
|
|
|
|
|
|
|
// Config is a setting for access mastodon APIs.
|
|
|
|
type Config struct {
|
|
|
|
Server string
|
|
|
|
ClientID string
|
|
|
|
ClientSecret string
|
|
|
|
AccessToken string
|
|
|
|
}
|
|
|
|
|
|
|
|
// Client is a API client for mastodon.
|
|
|
|
type Client struct {
|
2020-10-30 17:07:06 +00:00
|
|
|
*http.Client
|
2019-12-13 18:08:26 +00:00
|
|
|
config *Config
|
|
|
|
}
|
|
|
|
|
|
|
|
func (c *Client) doAPI(ctx context.Context, method string, uri string, params interface{}, res interface{}, pg *Pagination) error {
|
|
|
|
u, err := url.Parse(c.config.Server)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
u.Path = path.Join(u.Path, uri)
|
|
|
|
|
|
|
|
var req *http.Request
|
|
|
|
ct := "application/x-www-form-urlencoded"
|
|
|
|
if values, ok := params.(url.Values); ok {
|
|
|
|
var body io.Reader
|
|
|
|
if method == http.MethodGet {
|
|
|
|
if pg != nil {
|
|
|
|
values = pg.setValues(values)
|
|
|
|
}
|
|
|
|
u.RawQuery = values.Encode()
|
|
|
|
} else {
|
|
|
|
body = strings.NewReader(values.Encode())
|
|
|
|
}
|
|
|
|
req, err = http.NewRequest(method, u.String(), body)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
} else if file, ok := params.(string); ok {
|
|
|
|
f, err := os.Open(file)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
defer f.Close()
|
|
|
|
|
|
|
|
var buf bytes.Buffer
|
|
|
|
mw := multipart.NewWriter(&buf)
|
|
|
|
part, err := mw.CreateFormFile("file", filepath.Base(file))
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
_, err = io.Copy(part, f)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
err = mw.Close()
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
req, err = http.NewRequest(method, u.String(), &buf)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
2019-12-14 20:19:02 +00:00
|
|
|
}
|
|
|
|
ct = mw.FormDataContentType()
|
|
|
|
} else if file, ok := params.(*multipart.FileHeader); ok {
|
|
|
|
f, err := file.Open()
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
defer f.Close()
|
|
|
|
|
|
|
|
var buf bytes.Buffer
|
|
|
|
mw := multipart.NewWriter(&buf)
|
|
|
|
part, err := mw.CreateFormFile("file", filepath.Base(file.Filename))
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
_, err = io.Copy(part, f)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
err = mw.Close()
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
req, err = http.NewRequest(method, u.String(), &buf)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
2019-12-13 18:08:26 +00:00
|
|
|
}
|
|
|
|
ct = mw.FormDataContentType()
|
|
|
|
} else if reader, ok := params.(io.Reader); ok {
|
|
|
|
var buf bytes.Buffer
|
|
|
|
mw := multipart.NewWriter(&buf)
|
|
|
|
part, err := mw.CreateFormFile("file", "upload")
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
_, err = io.Copy(part, reader)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
err = mw.Close()
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
req, err = http.NewRequest(method, u.String(), &buf)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
ct = mw.FormDataContentType()
|
|
|
|
} else {
|
|
|
|
if method == http.MethodGet && pg != nil {
|
|
|
|
u.RawQuery = pg.toValues().Encode()
|
|
|
|
}
|
|
|
|
req, err = http.NewRequest(method, u.String(), nil)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
}
|
|
|
|
req = req.WithContext(ctx)
|
|
|
|
req.Header.Set("Authorization", "Bearer "+c.config.AccessToken)
|
|
|
|
if params != nil {
|
|
|
|
req.Header.Set("Content-Type", ct)
|
|
|
|
}
|
|
|
|
|
2020-10-30 17:07:06 +00:00
|
|
|
resp, err := c.Do(req)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
2019-12-13 18:08:26 +00:00
|
|
|
}
|
2020-10-30 17:07:06 +00:00
|
|
|
defer resp.Body.Close()
|
2019-12-13 18:08:26 +00:00
|
|
|
|
|
|
|
if resp.StatusCode != http.StatusOK {
|
|
|
|
return parseAPIError("bad request", resp)
|
|
|
|
} else if res == nil {
|
|
|
|
return nil
|
|
|
|
} else if pg != nil {
|
|
|
|
if lh := resp.Header.Get("Link"); lh != "" {
|
|
|
|
pg2, err := newPagination(lh)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
*pg = *pg2
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return json.NewDecoder(resp.Body).Decode(&res)
|
|
|
|
}
|
|
|
|
|
|
|
|
// NewClient return new mastodon API client.
|
|
|
|
func NewClient(config *Config) *Client {
|
|
|
|
return &Client{
|
2020-10-30 17:07:06 +00:00
|
|
|
Client: http.DefaultClient,
|
2019-12-13 18:08:26 +00:00
|
|
|
config: config,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Authenticate get access-token to the API.
|
|
|
|
func (c *Client) Authenticate(ctx context.Context, username, password string) error {
|
|
|
|
params := url.Values{
|
|
|
|
"client_id": {c.config.ClientID},
|
|
|
|
"client_secret": {c.config.ClientSecret},
|
|
|
|
"grant_type": {"password"},
|
|
|
|
"username": {username},
|
|
|
|
"password": {password},
|
|
|
|
"scope": {"read write follow"},
|
|
|
|
}
|
|
|
|
|
|
|
|
return c.authenticate(ctx, params)
|
|
|
|
}
|
|
|
|
|
|
|
|
// AuthenticateToken logs in using a grant token returned by Application.AuthURI.
|
|
|
|
//
|
|
|
|
// redirectURI should be the same as Application.RedirectURI.
|
|
|
|
func (c *Client) AuthenticateToken(ctx context.Context, authCode, redirectURI string) error {
|
|
|
|
params := url.Values{
|
|
|
|
"client_id": {c.config.ClientID},
|
|
|
|
"client_secret": {c.config.ClientSecret},
|
|
|
|
"grant_type": {"authorization_code"},
|
|
|
|
"code": {authCode},
|
|
|
|
"redirect_uri": {redirectURI},
|
|
|
|
}
|
|
|
|
|
|
|
|
return c.authenticate(ctx, params)
|
|
|
|
}
|
|
|
|
|
|
|
|
func (c *Client) authenticate(ctx context.Context, params url.Values) error {
|
|
|
|
u, err := url.Parse(c.config.Server)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
u.Path = path.Join(u.Path, "/oauth/token")
|
|
|
|
|
|
|
|
req, err := http.NewRequest(http.MethodPost, u.String(), strings.NewReader(params.Encode()))
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
req = req.WithContext(ctx)
|
|
|
|
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
|
|
|
|
resp, err := c.Do(req)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
defer resp.Body.Close()
|
|
|
|
|
|
|
|
if resp.StatusCode != http.StatusOK {
|
|
|
|
return parseAPIError("bad authorization", resp)
|
|
|
|
}
|
|
|
|
|
|
|
|
var res struct {
|
|
|
|
AccessToken string `json:"access_token"`
|
|
|
|
}
|
|
|
|
err = json.NewDecoder(resp.Body).Decode(&res)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
c.config.AccessToken = res.AccessToken
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (c *Client) GetAccessToken(ctx context.Context) string {
|
|
|
|
if c == nil || c.config == nil {
|
|
|
|
return ""
|
|
|
|
}
|
|
|
|
return c.config.AccessToken
|
|
|
|
}
|
|
|
|
|
|
|
|
// Toot is struct to post status.
|
|
|
|
type Toot struct {
|
|
|
|
Status string `json:"status"`
|
|
|
|
InReplyToID string `json:"in_reply_to_id"`
|
|
|
|
MediaIDs []string `json:"media_ids"`
|
|
|
|
Sensitive bool `json:"sensitive"`
|
|
|
|
SpoilerText string `json:"spoiler_text"`
|
|
|
|
Visibility string `json:"visibility"`
|
2019-12-26 11:25:29 +00:00
|
|
|
ContentType string `json:"content_type"`
|
2019-12-13 18:08:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// Mention hold information for mention.
|
|
|
|
type Mention struct {
|
|
|
|
URL string `json:"url"`
|
|
|
|
Username string `json:"username"`
|
|
|
|
Acct string `json:"acct"`
|
|
|
|
ID string `json:"id"`
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tag hold information for tag.
|
|
|
|
type Tag struct {
|
|
|
|
Name string `json:"name"`
|
|
|
|
URL string `json:"url"`
|
|
|
|
History []History `json:"history"`
|
|
|
|
}
|
|
|
|
|
|
|
|
// History hold information for history.
|
|
|
|
type History struct {
|
|
|
|
Day string `json:"day"`
|
|
|
|
Uses int64 `json:"uses"`
|
|
|
|
Accounts int64 `json:"accounts"`
|
|
|
|
}
|
|
|
|
|
|
|
|
// Attachment hold information for attachment.
|
|
|
|
type Attachment struct {
|
|
|
|
ID string `json:"id"`
|
|
|
|
Type string `json:"type"`
|
|
|
|
URL string `json:"url"`
|
|
|
|
RemoteURL string `json:"remote_url"`
|
|
|
|
PreviewURL string `json:"preview_url"`
|
|
|
|
TextURL string `json:"text_url"`
|
|
|
|
Description string `json:"description"`
|
|
|
|
Meta AttachmentMeta `json:"meta"`
|
|
|
|
}
|
|
|
|
|
|
|
|
// AttachmentMeta holds information for attachment metadata.
|
|
|
|
type AttachmentMeta struct {
|
|
|
|
Original AttachmentSize `json:"original"`
|
|
|
|
Small AttachmentSize `json:"small"`
|
|
|
|
}
|
|
|
|
|
|
|
|
// AttachmentSize holds information for attatchment size.
|
|
|
|
type AttachmentSize struct {
|
|
|
|
Width int64 `json:"width"`
|
|
|
|
Height int64 `json:"height"`
|
|
|
|
Size string `json:"size"`
|
|
|
|
Aspect float64 `json:"aspect"`
|
|
|
|
}
|
|
|
|
|
|
|
|
// Emoji hold information for CustomEmoji.
|
|
|
|
type Emoji struct {
|
|
|
|
ShortCode string `json:"shortcode"`
|
|
|
|
StaticURL string `json:"static_url"`
|
|
|
|
URL string `json:"url"`
|
|
|
|
VisibleInPicker bool `json:"visible_in_picker"`
|
|
|
|
}
|
|
|
|
|
|
|
|
// Results hold information for search result.
|
|
|
|
type Results struct {
|
|
|
|
Accounts []*Account `json:"accounts"`
|
|
|
|
Statuses []*Status `json:"statuses"`
|
2019-12-26 19:18:09 +00:00
|
|
|
// Hashtags []string `json:"hashtags"`
|
2019-12-13 18:08:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// Pagination is a struct for specifying the get range.
|
|
|
|
type Pagination struct {
|
|
|
|
MaxID string
|
|
|
|
SinceID string
|
|
|
|
MinID string
|
|
|
|
Limit int64
|
|
|
|
}
|
|
|
|
|
|
|
|
func newPagination(rawlink string) (*Pagination, error) {
|
|
|
|
if rawlink == "" {
|
|
|
|
return nil, errors.New("empty link header")
|
|
|
|
}
|
|
|
|
|
|
|
|
p := &Pagination{}
|
|
|
|
for _, link := range linkheader.Parse(rawlink) {
|
|
|
|
switch link.Rel {
|
|
|
|
case "next":
|
|
|
|
maxID, err := getPaginationID(link.URL, "max_id")
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
p.MaxID = maxID
|
|
|
|
case "prev":
|
|
|
|
sinceID, err := getPaginationID(link.URL, "since_id")
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
p.SinceID = sinceID
|
|
|
|
|
|
|
|
minID, err := getPaginationID(link.URL, "min_id")
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
p.MinID = minID
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return p, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func getPaginationID(rawurl, key string) (string, error) {
|
|
|
|
u, err := url.Parse(rawurl)
|
|
|
|
if err != nil {
|
|
|
|
return "", err
|
|
|
|
}
|
|
|
|
|
|
|
|
val := u.Query().Get(key)
|
|
|
|
if val == "" {
|
|
|
|
return "", nil
|
|
|
|
}
|
|
|
|
|
|
|
|
return string(val), nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (p *Pagination) toValues() url.Values {
|
|
|
|
return p.setValues(url.Values{})
|
|
|
|
}
|
|
|
|
|
|
|
|
func (p *Pagination) setValues(params url.Values) url.Values {
|
|
|
|
if p.MaxID != "" {
|
|
|
|
params.Set("max_id", string(p.MaxID))
|
|
|
|
}
|
|
|
|
if p.SinceID != "" {
|
|
|
|
params.Set("since_id", string(p.SinceID))
|
|
|
|
}
|
|
|
|
if p.MinID != "" {
|
|
|
|
params.Set("min_id", string(p.MinID))
|
|
|
|
}
|
|
|
|
if p.Limit > 0 {
|
|
|
|
params.Set("limit", fmt.Sprint(p.Limit))
|
|
|
|
}
|
|
|
|
|
|
|
|
return params
|
|
|
|
}
|