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bloat/service/service.go

887 lines
22 KiB

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package service
import (
"context"
"errors"
"fmt"
"mime/multipart"
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"net/url"
"strings"
"bloat/mastodon"
"bloat/model"
"bloat/renderer"
"bloat/util"
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)
var (
errInvalidArgument = errors.New("invalid argument")
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)
type Service interface {
ServeErrorPage(ctx context.Context, c *model.Client, err error)
ServeSigninPage(ctx context.Context, c *model.Client) (err error)
ServeRootPage(ctx context.Context, c *model.Client) (err error)
ServeNavPage(ctx context.Context, c *model.Client) (err error)
ServeTimelinePage(ctx context.Context, c *model.Client, tType string, maxID string, minID string) (err error)
ServeThreadPage(ctx context.Context, c *model.Client, id string, reply bool) (err error)
ServeLikedByPage(ctx context.Context, c *model.Client, id string) (err error)
ServeRetweetedByPage(ctx context.Context, c *model.Client, id string) (err error)
ServeNotificationPage(ctx context.Context, c *model.Client, maxID string, minID string) (err error)
ServeUserPage(ctx context.Context, c *model.Client, id string, pageType string,
maxID string, minID string) (err error)
ServeAboutPage(ctx context.Context, c *model.Client) (err error)
ServeEmojiPage(ctx context.Context, c *model.Client) (err error)
ServeSearchPage(ctx context.Context, c *model.Client, q string, qType string, offset int) (err error)
ServeUserSearchPage(ctx context.Context, c *model.Client, id string, q string, offset int) (err error)
ServeSettingsPage(ctx context.Context, c *model.Client) (err error)
NewSession(ctx context.Context, instance string) (redirectUrl string, sessionID string, err error)
Signin(ctx context.Context, c *model.Client, sessionID string,
code string) (token string, userID string, err error)
Signout(ctx context.Context, c *model.Client) (err error)
Post(ctx context.Context, c *model.Client, content string, replyToID string, format string,
visibility string, isNSFW bool, files []*multipart.FileHeader) (id string, err error)
Like(ctx context.Context, c *model.Client, id string) (count int64, err error)
UnLike(ctx context.Context, c *model.Client, id string) (count int64, err error)
Retweet(ctx context.Context, c *model.Client, id string) (count int64, err error)
UnRetweet(ctx context.Context, c *model.Client, id string) (count int64, err error)
Vote(ctx context.Context, c *model.Client, id string, choices []string) (err error)
Follow(ctx context.Context, c *model.Client, id string, reblogs *bool) (err error)
UnFollow(ctx context.Context, c *model.Client, id string) (err error)
Mute(ctx context.Context, c *model.Client, id string) (err error)
UnMute(ctx context.Context, c *model.Client, id string) (err error)
Block(ctx context.Context, c *model.Client, id string) (err error)
UnBlock(ctx context.Context, c *model.Client, id string) (err error)
Subscribe(ctx context.Context, c *model.Client, id string) (err error)
UnSubscribe(ctx context.Context, c *model.Client, id string) (err error)
SaveSettings(ctx context.Context, c *model.Client, settings *model.Settings) (err error)
MuteConversation(ctx context.Context, c *model.Client, id string) (err error)
UnMuteConversation(ctx context.Context, c *model.Client, id string) (err error)
Delete(ctx context.Context, c *model.Client, id string) (err error)
ReadNotifications(ctx context.Context, c *model.Client, maxID string) (err error)
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}
type service struct {
clientName string
clientScope string
clientWebsite string
customCSS string
postFormats []model.PostFormat
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renderer renderer.Renderer
sessionRepo model.SessionRepo
appRepo model.AppRepo
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}
func NewService(clientName string,
clientScope string,
clientWebsite string,
customCSS string,
postFormats []model.PostFormat,
renderer renderer.Renderer,
sessionRepo model.SessionRepo,
appRepo model.AppRepo,
) Service {
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return &service{
clientName: clientName,
clientScope: clientScope,
clientWebsite: clientWebsite,
customCSS: customCSS,
postFormats: postFormats,
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renderer: renderer,
sessionRepo: sessionRepo,
appRepo: appRepo,
}
}
func getRendererContext(c *model.Client) *renderer.Context {
var settings model.Settings
var session model.Session
if c != nil {
settings = c.Session.Settings
session = c.Session
} else {
settings = *model.NewSettings()
}
return &renderer.Context{
MaskNSFW: settings.MaskNSFW,
ThreadInNewTab: settings.ThreadInNewTab,
FluorideMode: settings.FluorideMode,
DarkMode: settings.DarkMode,
CSRFToken: session.CSRFToken,
UserID: session.UserID,
}
}
func addToReplyMap(m map[string][]mastodon.ReplyInfo, key interface{},
val string, number int) {
if key == nil {
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return
}
keyStr, ok := key.(string)
if !ok {
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return
}
_, ok = m[keyStr]
if !ok {
m[keyStr] = []mastodon.ReplyInfo{}
}
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m[keyStr] = append(m[keyStr], mastodon.ReplyInfo{val, number})
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}
func (svc *service) getCommonData(ctx context.Context, c *model.Client,
title string) (data *renderer.CommonData) {
data = &renderer.CommonData{
Title: title + " - " + svc.clientName,
CustomCSS: svc.customCSS,
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}
if c != nil && c.Session.IsLoggedIn() {
data.CSRFToken = c.Session.CSRFToken
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}
return
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}
func (svc *service) ServeErrorPage(ctx context.Context, c *model.Client, err error) {
var errStr string
if err != nil {
errStr = err.Error()
}
commonData := svc.getCommonData(ctx, nil, "error")
data := &renderer.ErrorData{
CommonData: commonData,
Error: errStr,
}
rCtx := getRendererContext(c)
svc.renderer.Render(rCtx, c.Writer, renderer.ErrorPage, data)
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}
func (svc *service) ServeSigninPage(ctx context.Context, c *model.Client) (
err error) {
commonData := svc.getCommonData(ctx, nil, "signin")
data := &renderer.SigninData{
CommonData: commonData,
}
rCtx := getRendererContext(nil)
return svc.renderer.Render(rCtx, c.Writer, renderer.SigninPage, data)
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}
func (svc *service) ServeRootPage(ctx context.Context, c *model.Client) (err error) {
data := &renderer.RootData{
Title: svc.clientName,
}
rCtx := getRendererContext(c)
return svc.renderer.Render(rCtx, c.Writer, renderer.RootPage, data)
}
func (svc *service) ServeNavPage(ctx context.Context, c *model.Client) (err error) {
u, err := c.GetAccountCurrentUser(ctx)
if err != nil {
return
}
postContext := model.PostContext{
DefaultVisibility: c.Session.Settings.DefaultVisibility,
Formats: svc.postFormats,
}
commonData := svc.getCommonData(ctx, c, "Nav")
commonData.Target = "main"
data := &renderer.NavData{
User: u,
CommonData: commonData,
PostContext: postContext,
}
rCtx := getRendererContext(c)
return svc.renderer.Render(rCtx, c.Writer, renderer.NavPage, data)
}
func (svc *service) ServeTimelinePage(ctx context.Context, c *model.Client,
tType string, maxID string, minID string) (err error) {
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var nextLink, prevLink, title string
var statuses []*mastodon.Status
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var pg = mastodon.Pagination{
MaxID: maxID,
MinID: minID,
Limit: 20,
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}
switch tType {
default:
return errInvalidArgument
case "home":
statuses, err = c.GetTimelineHome(ctx, &pg)
title = "Timeline"
case "direct":
statuses, err = c.GetTimelineDirect(ctx, &pg)
title = "Local Timeline"
case "local":
statuses, err = c.GetTimelinePublic(ctx, true, &pg)
title = "Local Timeline"
case "twkn":
statuses, err = c.GetTimelinePublic(ctx, false, &pg)
title = "The Whole Known Network"
}
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if err != nil {
return err
}
for i := range statuses {
if statuses[i].Reblog != nil {
statuses[i].Reblog.RetweetedByID = statuses[i].ID
}
}
if len(maxID) > 0 && len(statuses) > 0 {
prevLink = fmt.Sprintf("/timeline/%s?min_id=%s", tType,
statuses[0].ID)
}
if len(minID) > 0 && len(pg.MinID) > 0 {
newPg := &mastodon.Pagination{MinID: pg.MinID, Limit: 20}
newStatuses, err := c.GetTimelineHome(ctx, newPg)
if err != nil {
return err
}
newLen := len(newStatuses)
if newLen == 20 {
prevLink = fmt.Sprintf("/timeline/%s?min_id=%s",
tType, pg.MinID)
} else {
i := 20 - newLen - 1
if len(statuses) > i {
prevLink = fmt.Sprintf("/timeline/%s?min_id=%s",
tType, statuses[i].ID)
}
}
}
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if len(pg.MaxID) > 0 {
nextLink = fmt.Sprintf("/timeline/%s?max_id=%s", tType, pg.MaxID)
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}
commonData := svc.getCommonData(ctx, c, tType+" timeline ")
data := &renderer.TimelineData{
Title: title,
Statuses: statuses,
NextLink: nextLink,
PrevLink: prevLink,
CommonData: commonData,
}
rCtx := getRendererContext(c)
return svc.renderer.Render(rCtx, c.Writer, renderer.TimelinePage, data)
}
func (svc *service) ServeThreadPage(ctx context.Context, c *model.Client,
id string, reply bool) (err error) {
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var postContext model.PostContext
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status, err := c.GetStatus(ctx, id)
if err != nil {
return
}
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u, err := c.GetAccountCurrentUser(ctx)
if err != nil {
return
}
if reply {
var content string
var visibility string
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if u.ID != status.Account.ID {
content += "@" + status.Account.Acct + " "
}
for i := range status.Mentions {
if status.Mentions[i].ID != u.ID &&
status.Mentions[i].ID != status.Account.ID {
content += "@" + status.Mentions[i].Acct + " "
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}
}
if c.Session.Settings.CopyScope {
s, err := c.GetStatus(ctx, id)
if err != nil {
return err
}
visibility = s.Visibility
} else {
visibility = c.Session.Settings.DefaultVisibility
}
postContext = model.PostContext{
DefaultVisibility: visibility,
Formats: svc.postFormats,
ReplyContext: &model.ReplyContext{
InReplyToID: id,
InReplyToName: status.Account.Acct,
ReplyContent: content,
},
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DarkMode: c.Session.Settings.DarkMode,
}
}
context, err := c.GetStatusContext(ctx, id)
if err != nil {
return
}
statuses := append(append(context.Ancestors, status), context.Descendants...)
replies := make(map[string][]mastodon.ReplyInfo)
for i := range statuses {
statuses[i].ShowReplies = true
statuses[i].ReplyMap = replies
statuses[i].ReplyNumber = i
addToReplyMap(replies, statuses[i].InReplyToID, statuses[i].ID, i+1)
}
commonData := svc.getCommonData(ctx, c, "post by "+status.Account.DisplayName)
data := &renderer.ThreadData{
Statuses: statuses,
PostContext: postContext,
ReplyMap: replies,
CommonData: commonData,
}
rCtx := getRendererContext(c)
return svc.renderer.Render(rCtx, c.Writer, renderer.ThreadPage, data)
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}
func (svc *service) ServeLikedByPage(ctx context.Context, c *model.Client,
id string) (err error) {
likers, err := c.GetFavouritedBy(ctx, id, nil)
if err != nil {
return
}
commonData := svc.getCommonData(ctx, c, "likes")
data := &renderer.LikedByData{
CommonData: commonData,
Users: likers,
}
rCtx := getRendererContext(c)
return svc.renderer.Render(rCtx, c.Writer, renderer.LikedByPage, data)
}
func (svc *service) ServeRetweetedByPage(ctx context.Context, c *model.Client,
id string) (err error) {
retweeters, err := c.GetRebloggedBy(ctx, id, nil)
if err != nil {
return
}
commonData := svc.getCommonData(ctx, c, "retweets")
data := &renderer.RetweetedByData{
CommonData: commonData,
Users: retweeters,
}
rCtx := getRendererContext(c)
return svc.renderer.Render(rCtx, c.Writer, renderer.RetweetedByPage, data)
}
func (svc *service) ServeNotificationPage(ctx context.Context, c *model.Client,
maxID string, minID string) (err error) {
var nextLink string
var unreadCount int
var readID string
var pg = mastodon.Pagination{
MaxID: maxID,
MinID: minID,
Limit: 20,
}
notifications, err := c.GetNotifications(ctx, &pg)
if err != nil {
return
}
for i := range notifications {
if notifications[i].Pleroma != nil && !notifications[i].Pleroma.IsSeen {
unreadCount++
}
}
if unreadCount > 0 {
readID = notifications[0].ID
}
if len(notifications) == 20 && len(pg.MaxID) > 0 {
nextLink = "/notifications?max_id=" + pg.MaxID
}
commonData := svc.getCommonData(ctx, c, "notifications")
commonData.AutoRefresh = c.Session.Settings.AutoRefreshNotifications
commonData.Target = "main"
commonData.Count = unreadCount
data := &renderer.NotificationData{
Notifications: notifications,
UnreadCount: unreadCount,
ReadID: readID,
NextLink: nextLink,
CommonData: commonData,
}
rCtx := getRendererContext(c)
return svc.renderer.Render(rCtx, c.Writer, renderer.NotificationPage, data)
}
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func (svc *service) ServeUserPage(ctx context.Context, c *model.Client,
id string, pageType string, maxID string, minID string) (err error) {
var nextLink string
var statuses []*mastodon.Status
var users []*mastodon.Account
var pg = mastodon.Pagination{
MaxID: maxID,
MinID: minID,
Limit: 20,
}
user, err := c.GetAccount(ctx, id)
if err != nil {
return
}
switch pageType {
case "":
statuses, err = c.GetAccountStatuses(ctx, id, false, &pg)
if err != nil {
return
}
if len(statuses) == 20 && len(pg.MaxID) > 0 {
nextLink = fmt.Sprintf("/user/%s?max_id=%s", id,
pg.MaxID)
}
case "following":
users, err = c.GetAccountFollowing(ctx, id, &pg)
if err != nil {
return
}
if len(users) == 20 && len(pg.MaxID) > 0 {
nextLink = fmt.Sprintf("/user/%s/following?max_id=%s",
id, pg.MaxID)
}
case "followers":
users, err = c.GetAccountFollowers(ctx, id, &pg)
if err != nil {
return
}
if len(users) == 20 && len(pg.MaxID) > 0 {
nextLink = fmt.Sprintf("/user/%s/followers?max_id=%s",
id, pg.MaxID)
}
case "media":
statuses, err = c.GetAccountStatuses(ctx, id, true, &pg)
if err != nil {
return
}
if len(statuses) == 20 && len(pg.MaxID) > 0 {
nextLink = fmt.Sprintf("/user/%s/media?max_id=%s",
id, pg.MaxID)
}
default:
return errInvalidArgument
}
commonData := svc.getCommonData(ctx, c, user.DisplayName)
data := &renderer.UserData{
User: user,
IsCurrent: c.Session.UserID == user.ID,
Type: pageType,
Users: users,
Statuses: statuses,
NextLink: nextLink,
CommonData: commonData,
}
rCtx := getRendererContext(c)
return svc.renderer.Render(rCtx, c.Writer, renderer.UserPage, data)
}
func (svc *service) ServeUserSearchPage(ctx context.Context, c *model.Client,
id string, q string, offset int) (err error) {
var nextLink string
var title = "search"
user, err := c.GetAccount(ctx, id)
if err != nil {
return
}
results, err := c.Search(ctx, q, "statuses", 20, true, offset, id)
if err != nil {
return
}
if len(results.Statuses) == 20 {
offset += 20
nextLink = fmt.Sprintf("/usersearch/%s?q=%s&offset=%d", id, q, offset)
}
if len(q) > 0 {
title += " \"" + q + "\""
}
commonData := svc.getCommonData(ctx, c, title)
data := &renderer.UserSearchData{
CommonData: commonData,
User: user,
Q: q,
Statuses: results.Statuses,
NextLink: nextLink,
}
rCtx := getRendererContext(c)
return svc.renderer.Render(rCtx, c.Writer, renderer.UserSearchPage, data)
}
func (svc *service) ServeAboutPage(ctx context.Context, c *model.Client) (err error) {
commonData := svc.getCommonData(ctx, c, "about")
data := &renderer.AboutData{
CommonData: commonData,
}
rCtx := getRendererContext(c)
return svc.renderer.Render(rCtx, c.Writer, renderer.AboutPage, data)
}
func (svc *service) ServeEmojiPage(ctx context.Context, c *model.Client) (err error) {
emojis, err := c.GetInstanceEmojis(ctx)
if err != nil {
return
}
commonData := svc.getCommonData(ctx, c, "emojis")
data := &renderer.EmojiData{
Emojis: emojis,
CommonData: commonData,
}
rCtx := getRendererContext(c)
return svc.renderer.Render(rCtx, c.Writer, renderer.EmojiPage, data)
}
func (svc *service) ServeSearchPage(ctx context.Context, c *model.Client,
q string, qType string, offset int) (err error) {
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var nextLink string
var title = "search"
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results, err := c.Search(ctx, q, qType, 20, true, offset, "")
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if err != nil {
return
}
if (qType == "accounts" && len(results.Accounts) == 20) ||
(qType == "statuses" && len(results.Statuses) == 20) {
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offset += 20
nextLink = fmt.Sprintf("/search?q=%s&type=%s&offset=%d", q, qType, offset)
}
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if len(q) > 0 {
title += " \"" + q + "\""
}
commonData := svc.getCommonData(ctx, c, title)
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data := &renderer.SearchData{
CommonData: commonData,
Q: q,
Type: qType,
Users: results.Accounts,
Statuses: results.Statuses,
NextLink: nextLink,
}
rCtx := getRendererContext(c)
return svc.renderer.Render(rCtx, c.Writer, renderer.SearchPage, data)
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}
func (svc *service) ServeSettingsPage(ctx context.Context, c *model.Client) (err error) {
commonData := svc.getCommonData(ctx, c, "settings")
data := &renderer.SettingsData{
CommonData: commonData,
Settings: &c.Session.Settings,
}
rCtx := getRendererContext(c)
return svc.renderer.Render(rCtx, c.Writer, renderer.SettingsPage, data)
}
func (svc *service) NewSession(ctx context.Context, instance string) (
redirectUrl string, sessionID string, err error) {
var instanceURL string
if strings.HasPrefix(instance, "https://") {
instanceURL = instance
instance = strings.TrimPrefix(instance, "https://")
} else {
instanceURL = "https://" + instance
}
sessionID, err = util.NewSessionID()
if err != nil {
return
}
csrfToken, err := util.NewCSRFToken()
if err != nil {
return
}
session := model.Session{
ID: sessionID,
InstanceDomain: instance,
CSRFToken: csrfToken,
Settings: *model.NewSettings(),
}
err = svc.sessionRepo.Add(session)
if err != nil {
return
}
app, err := svc.appRepo.Get(instance)
if err != nil {
if err != model.ErrAppNotFound {
return
}
mastoApp, err := mastodon.RegisterApp(ctx, &mastodon.AppConfig{
Server: instanceURL,
ClientName: svc.clientName,
Scopes: svc.clientScope,
Website: svc.clientWebsite,
RedirectURIs: svc.clientWebsite + "/oauth_callback",
})
if err != nil {
return "", "", err
}
app = model.App{
InstanceDomain: instance,
InstanceURL: instanceURL,
ClientID: mastoApp.ClientID,
ClientSecret: mastoApp.ClientSecret,
}
err = svc.appRepo.Add(app)
if err != nil {
return "", "", err
}
}
u, err := url.Parse("/oauth/authorize")
if err != nil {
return
}
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q := make(url.Values)
q.Set("scope", "read write follow")
q.Set("client_id", app.ClientID)
q.Set("response_type", "code")
q.Set("redirect_uri", svc.clientWebsite+"/oauth_callback")
u.RawQuery = q.Encode()
redirectUrl = instanceURL + u.String()
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return
}
func (svc *service) Signin(ctx context.Context, c *model.Client,
sessionID string, code string) (token string, userID string, err error) {
if len(code) < 1 {
err = errInvalidArgument