// GoToSocial // Copyright (C) GoToSocial Authors admin@gotosocial.org // SPDX-License-Identifier: AGPL-3.0-or-later // // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU Affero General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Affero General Public License for more details. // // You should have received a copy of the GNU Affero General Public License // along with this program. If not, see . package typeutils import ( "context" "errors" "fmt" "strings" "time" "codeberg.org/gruf/go-debug" apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model" "github.com/superseriousbusiness/gotosocial/internal/config" "github.com/superseriousbusiness/gotosocial/internal/db" statusfilter "github.com/superseriousbusiness/gotosocial/internal/filter/status" "github.com/superseriousbusiness/gotosocial/internal/filter/usermute" "github.com/superseriousbusiness/gotosocial/internal/gtserror" "github.com/superseriousbusiness/gotosocial/internal/gtsmodel" "github.com/superseriousbusiness/gotosocial/internal/language" "github.com/superseriousbusiness/gotosocial/internal/log" "github.com/superseriousbusiness/gotosocial/internal/media" "github.com/superseriousbusiness/gotosocial/internal/text" "github.com/superseriousbusiness/gotosocial/internal/uris" "github.com/superseriousbusiness/gotosocial/internal/util" ) const ( instanceStatusesCharactersReservedPerURL = 25 instanceMediaAttachmentsImageMatrixLimit = 16777216 // width * height instanceMediaAttachmentsVideoMatrixLimit = 16777216 // width * height instanceMediaAttachmentsVideoFrameRateLimit = 60 instancePollsMinExpiration = 300 // seconds instancePollsMaxExpiration = 2629746 // seconds instanceAccountsMaxFeaturedTags = 10 instanceAccountsMaxProfileFields = 6 // FIXME: https://github.com/superseriousbusiness/gotosocial/issues/1876 instanceSourceURL = "https://github.com/superseriousbusiness/gotosocial" instanceMastodonVersion = "3.5.3" ) var instanceStatusesSupportedMimeTypes = []string{ string(apimodel.StatusContentTypePlain), string(apimodel.StatusContentTypeMarkdown), } func toMastodonVersion(in string) string { return instanceMastodonVersion + "+" + strings.ReplaceAll(in, " ", "-") } // UserToAPIUser converts a *gtsmodel.User to an API // representation suitable for serving to that user. // // Contains sensitive info so should only // ever be served to the user themself. func (c *Converter) UserToAPIUser(ctx context.Context, u *gtsmodel.User) *apimodel.User { user := &apimodel.User{ ID: u.ID, CreatedAt: util.FormatISO8601(u.CreatedAt), Email: u.Email, UnconfirmedEmail: u.UnconfirmedEmail, Reason: u.Reason, Moderator: *u.Moderator, Admin: *u.Admin, Disabled: *u.Disabled, Approved: *u.Approved, } // Zero-able dates. if !u.LastEmailedAt.IsZero() { user.LastEmailedAt = util.FormatISO8601(u.LastEmailedAt) } if !u.ConfirmedAt.IsZero() { user.ConfirmedAt = util.FormatISO8601(u.ConfirmedAt) } if !u.ConfirmationSentAt.IsZero() { user.ConfirmationSentAt = util.FormatISO8601(u.ConfirmationSentAt) } if !u.ResetPasswordSentAt.IsZero() { user.ResetPasswordSentAt = util.FormatISO8601(u.ResetPasswordSentAt) } return user } // AppToAPIAppSensitive takes a db model application as a param, and returns a populated apitype application, or an error // if something goes wrong. The returned application should be ready to serialize on an API level, and may have sensitive fields // (such as client id and client secret), so serve it only to an authorized user who should have permission to see it. func (c *Converter) AccountToAPIAccountSensitive(ctx context.Context, a *gtsmodel.Account) (*apimodel.Account, error) { // We can build this sensitive account model // by first getting the public account, and // then adding the Source object to it. apiAccount, err := c.AccountToAPIAccountPublic(ctx, a) if err != nil { return nil, err } // Ensure account stats populated. if a.Stats == nil { if err := c.state.DB.PopulateAccountStats(ctx, a); err != nil { return nil, gtserror.Newf( "error getting stats for account %s: %w", a.ID, err, ) } } statusContentType := string(apimodel.StatusContentTypeDefault) if a.Settings.StatusContentType != "" { statusContentType = a.Settings.StatusContentType } apiAccount.Source = &apimodel.Source{ Privacy: c.VisToAPIVis(ctx, a.Settings.Privacy), Sensitive: *a.Settings.Sensitive, Language: a.Settings.Language, StatusContentType: statusContentType, Note: a.NoteRaw, Fields: c.fieldsToAPIFields(a.FieldsRaw), FollowRequestsCount: *a.Stats.FollowRequestsCount, AlsoKnownAsURIs: a.AlsoKnownAsURIs, } return apiAccount, nil } // AccountToAPIAccountPublic takes a db model account as a param, and returns a populated apitype account, or an error // if something goes wrong. The returned account should be ready to serialize on an API level, and may NOT have sensitive fields. // In other words, this is the public record that the server has of an account. func (c *Converter) AccountToAPIAccountPublic(ctx context.Context, a *gtsmodel.Account) (*apimodel.Account, error) { account, err := c.accountToAPIAccountPublic(ctx, a) if err != nil { return nil, err } if a.MovedTo != nil { account.Moved, err = c.accountToAPIAccountPublic(ctx, a.MovedTo) if err != nil { log.Errorf(ctx, "error converting account movedTo: %v", err) } } return account, nil } // AccountToWebAccount converts a gts model account into an // api representation suitable for serving into a web template. // // Should only be used when preparing to template an account, // callers looking to serialize an account into a model for // serving over the client API should always use one of the // AccountToAPIAccount functions instead. func (c *Converter) AccountToWebAccount( ctx context.Context, a *gtsmodel.Account, ) (*apimodel.WebAccount, error) { apiAccount, err := c.AccountToAPIAccountPublic(ctx, a) if err != nil { return nil, err } webAccount := &apimodel.WebAccount{ Account: apiAccount, } // Set additional avatar information for // serving the avatar in a nice . if ogAvi := a.AvatarMediaAttachment; ogAvi != nil { avatarAttachment, err := c.AttachmentToAPIAttachment(ctx, ogAvi) if err != nil { // This is just extra data so just // log but don't return any error. log.Errorf(ctx, "error converting account avatar attachment: %v", err) } else { webAccount.AvatarAttachment = &apimodel.WebAttachment{ Attachment: &avatarAttachment, MIMEType: ogAvi.File.ContentType, PreviewMIMEType: ogAvi.Thumbnail.ContentType, } } } // Set additional header information for // serving the header in a nice . if ogHeader := a.HeaderMediaAttachment; ogHeader != nil { headerAttachment, err := c.AttachmentToAPIAttachment(ctx, ogHeader) if err != nil { // This is just extra data so just // log but don't return any error. log.Errorf(ctx, "error converting account header attachment: %v", err) } else { webAccount.HeaderAttachment = &apimodel.WebAttachment{ Attachment: &headerAttachment, MIMEType: ogHeader.File.ContentType, PreviewMIMEType: ogHeader.Thumbnail.ContentType, } } } return webAccount, nil } // accountToAPIAccountPublic provides all the logic for AccountToAPIAccount, MINUS fetching moved account, to prevent possible recursion. func (c *Converter) accountToAPIAccountPublic(ctx context.Context, a *gtsmodel.Account) (*apimodel.Account, error) { // Populate account struct fields. err := c.state.DB.PopulateAccount(ctx, a) switch { case err == nil: // No problem. case a.Stats != nil: // We have stats so that's // *maybe* OK, try to continue. log.Errorf(ctx, "error(s) populating account, will continue: %s", err) default: // There was an error and we don't // have stats, we can't continue. return nil, gtserror.Newf("account stats not populated, could not continue: %w", err) } // Basic account stats: // - Followers count // - Following count // - Statuses count // - Last status time var ( followersCount = *a.Stats.FollowersCount followingCount = *a.Stats.FollowingCount statusesCount = *a.Stats.StatusesCount lastStatusAt = func() *string { if a.Stats.LastStatusAt.IsZero() { return nil } return util.Ptr(util.FormatISO8601(a.Stats.LastStatusAt)) }() ) // Profile media + nice extras: // - Avatar // - Header // - Fields // - Emojis var ( aviURL string aviURLStatic string aviDesc string headerURL string headerURLStatic string headerDesc string ) if a.AvatarMediaAttachment != nil { aviURL = a.AvatarMediaAttachment.URL aviURLStatic = a.AvatarMediaAttachment.Thumbnail.URL aviDesc = a.AvatarMediaAttachment.Description } if a.HeaderMediaAttachment != nil { headerURL = a.HeaderMediaAttachment.URL headerURLStatic = a.HeaderMediaAttachment.Thumbnail.URL headerDesc = a.HeaderMediaAttachment.Description } // convert account gts model fields to front api model fields fields := c.fieldsToAPIFields(a.Fields) // GTS model emojis -> frontend. apiEmojis, err := c.convertEmojisToAPIEmojis(ctx, a.Emojis, a.EmojiIDs) if err != nil { log.Errorf(ctx, "error converting account emojis: %v", err) } // Bits that vary between remote + local accounts: // - Account (acct) string. // - Role. // - Settings things (enableRSS, theme, customCSS, hideCollections). var ( acct string role *apimodel.AccountRole enableRSS bool theme string customCSS string hideCollections bool ) if a.IsRemote() { // Domain may be in Punycode, // de-punify it just in case. d, err := util.DePunify(a.Domain) if err != nil { return nil, gtserror.Newf("error de-punifying domain %s for account id %s: %w", a.Domain, a.ID, err) } acct = a.Username + "@" + d } else { // This is a local account, try to // fetch more info. Skip for instance // accounts since they have no user. if !a.IsInstance() { user, err := c.state.DB.GetUserByAccountID(ctx, a.ID) if err != nil { return nil, gtserror.Newf("error getting user from database for account id %s: %w", a.ID, err) } switch { case *user.Admin: role = &apimodel.AccountRole{Name: apimodel.AccountRoleAdmin} case *user.Moderator: role = &apimodel.AccountRole{Name: apimodel.AccountRoleModerator} default: role = &apimodel.AccountRole{Name: apimodel.AccountRoleUser} } enableRSS = *a.Settings.EnableRSS theme = a.Settings.Theme customCSS = a.Settings.CustomCSS hideCollections = *a.Settings.HideCollections } acct = a.Username // omit domain } var ( locked = util.PtrOrValue(a.Locked, true) discoverable = util.PtrOrValue(a.Discoverable, false) bot = util.PtrOrValue(a.Bot, false) ) // Remaining properties are simple and // can be populated directly below. accountFrontend := &apimodel.Account{ ID: a.ID, Username: a.Username, Acct: acct, DisplayName: a.DisplayName, Locked: locked, Discoverable: discoverable, Bot: bot, CreatedAt: util.FormatISO8601(a.CreatedAt), Note: a.Note, URL: a.URL, Avatar: aviURL, AvatarStatic: aviURLStatic, AvatarDescription: aviDesc, Header: headerURL, HeaderStatic: headerURLStatic, HeaderDescription: headerDesc, FollowersCount: followersCount, FollowingCount: followingCount, StatusesCount: statusesCount, LastStatusAt: lastStatusAt, Emojis: apiEmojis, Fields: fields, Suspended: !a.SuspendedAt.IsZero(), Theme: theme, CustomCSS: customCSS, EnableRSS: enableRSS, HideCollections: hideCollections, Role: role, } // Bodge default avatar + header in, // if we didn't have one already. c.ensureAvatar(accountFrontend) c.ensureHeader(accountFrontend) return accountFrontend, nil } func (c *Converter) fieldsToAPIFields(f []*gtsmodel.Field) []apimodel.Field { fields := make([]apimodel.Field, len(f)) for i, field := range f { mField := apimodel.Field{ Name: field.Name, Value: field.Value, } if !field.VerifiedAt.IsZero() { verified := util.FormatISO8601(field.VerifiedAt) mField.VerifiedAt = util.Ptr(verified) } fields[i] = mField } return fields } // AccountToAPIAccountBlocked takes a db model account as a param, and returns a apitype account, or an error if // something goes wrong. The returned account will be a bare minimum representation of the account. This function should be used // when someone wants to view an account they've blocked. func (c *Converter) AccountToAPIAccountBlocked(ctx context.Context, a *gtsmodel.Account) (*apimodel.Account, error) { var ( acct string role *apimodel.AccountRole ) if a.IsRemote() { // Domain may be in Punycode, // de-punify it just in case. d, err := util.DePunify(a.Domain) if err != nil { return nil, gtserror.Newf("error de-punifying domain %s for account id %s: %w", a.Domain, a.ID, err) } acct = a.Username + "@" + d } else { // This is a local account, try to // fetch more info. Skip for instance // accounts since they have no user. if !a.IsInstance() { user, err := c.state.DB.GetUserByAccountID(ctx, a.ID) if err != nil { return nil, gtserror.Newf("error getting user from database for account id %s: %w", a.ID, err) } switch { case *user.Admin: role = &apimodel.AccountRole{Name: apimodel.AccountRoleAdmin} case *user.Moderator: role = &apimodel.AccountRole{Name: apimodel.AccountRoleModerator} default: role = &apimodel.AccountRole{Name: apimodel.AccountRoleUser} } } acct = a.Username // omit domain } account := &apimodel.Account{ ID: a.ID, Username: a.Username, Acct: acct, Bot: *a.Bot, CreatedAt: util.FormatISO8601(a.CreatedAt), URL: a.URL, // Empty array (not nillable). Emojis: make([]apimodel.Emoji, 0), // Empty array (not nillable). Fields: make([]apimodel.Field, 0), Suspended: !a.SuspendedAt.IsZero(), Role: role, } // Don't show the account's actual // avatar+header since it may be // upsetting to the blocker. Just // show generic avatar+header instead. c.ensureAvatar(account) c.ensureHeader(account) return account, nil } func (c *Converter) AccountToAdminAPIAccount(ctx context.Context, a *gtsmodel.Account) (*apimodel.AdminAccountInfo, error) { var ( email string ip *string domain *string locale string confirmed bool inviteRequest *string approved bool disabled bool role = apimodel.AccountRole{Name: apimodel.AccountRoleUser} // assume user by default createdByApplicationID string ) if err := c.state.DB.PopulateAccount(ctx, a); err != nil { log.Errorf(ctx, "error(s) populating account, will continue: %s", err) } if a.IsRemote() { // Domain may be in Punycode, // de-punify it just in case. d, err := util.DePunify(a.Domain) if err != nil { return nil, fmt.Errorf("AccountToAdminAPIAccount: error de-punifying domain %s for account id %s: %w", a.Domain, a.ID, err) } domain = &d } else if !a.IsInstance() { // This is a local, non-instance // acct; we can fetch more info. user, err := c.state.DB.GetUserByAccountID(ctx, a.ID) if err != nil { return nil, fmt.Errorf("AccountToAdminAPIAccount: error getting user from database for account id %s: %w", a.ID, err) } if user.Email != "" { email = user.Email } else { email = user.UnconfirmedEmail } if i := user.SignUpIP.String(); i != "" { ip = &i } locale = user.Locale if user.Reason != "" { inviteRequest = &user.Reason } if *user.Admin { role.Name = apimodel.AccountRoleAdmin } else if *user.Moderator { role.Name = apimodel.AccountRoleModerator } confirmed = !user.ConfirmedAt.IsZero() approved = *user.Approved disabled = *user.Disabled createdByApplicationID = user.CreatedByApplicationID } apiAccount, err := c.AccountToAPIAccountPublic(ctx, a) if err != nil { return nil, fmt.Errorf("AccountToAdminAPIAccount: error converting account to api account for account id %s: %w", a.ID, err) } return &apimodel.AdminAccountInfo{ ID: a.ID, Username: a.Username, Domain: domain, CreatedAt: util.FormatISO8601(a.CreatedAt), Email: email, IP: ip, IPs: []interface{}{}, // not implemented, Locale: locale, InviteRequest: inviteRequest, Role: role, Confirmed: confirmed, Approved: approved, Disabled: disabled, Silenced: !a.SilencedAt.IsZero(), Suspended: !a.SuspendedAt.IsZero(), Account: apiAccount, CreatedByApplicationID: createdByApplicationID, InvitedByAccountID: "", // not implemented (yet) }, nil } func (c *Converter) AppToAPIAppSensitive(ctx context.Context, a *gtsmodel.Application) (*apimodel.Application, error) { return &apimodel.Application{ ID: a.ID, Name: a.Name, Website: a.Website, RedirectURI: a.RedirectURI, ClientID: a.ClientID, ClientSecret: a.ClientSecret, }, nil } // AppToAPIAppPublic takes a db model application as a param, and returns a populated apitype application, or an error // if something goes wrong. The returned application should be ready to serialize on an API level, and has sensitive // fields sanitized so that it can be served to non-authorized accounts without revealing any private information. func (c *Converter) AppToAPIAppPublic(ctx context.Context, a *gtsmodel.Application) (*apimodel.Application, error) { return &apimodel.Application{ Name: a.Name, Website: a.Website, }, nil } // AttachmentToAPIAttachment converts a gts model media attacahment into its api representation for serialization on the API. func (c *Converter) AttachmentToAPIAttachment(ctx context.Context, media *gtsmodel.MediaAttachment) (apimodel.Attachment, error) { var api apimodel.Attachment api.Type = media.Type.String() api.ID = media.ID // Only add file details if // we have stored locally. if media.File.Path != "" { api.Meta = new(apimodel.MediaMeta) api.Meta.Original = apimodel.MediaDimensions{ Width: media.FileMeta.Original.Width, Height: media.FileMeta.Original.Height, Aspect: media.FileMeta.Original.Aspect, Size: toAPISize(media.FileMeta.Original.Width, media.FileMeta.Original.Height), FrameRate: toAPIFrameRate(media.FileMeta.Original.Framerate), Duration: util.PtrOrZero(media.FileMeta.Original.Duration), Bitrate: int(util.PtrOrZero(media.FileMeta.Original.Bitrate)), } // Copy over local file URL. api.URL = util.Ptr(media.URL) api.TextURL = util.Ptr(media.URL) // Set file focus details. // (this doesn't make much sense if media // has no image, but the API doesn't yet // distinguish between zero values vs. none). api.Meta.Focus = new(apimodel.MediaFocus) api.Meta.Focus.X = media.FileMeta.Focus.X api.Meta.Focus.Y = media.FileMeta.Focus.Y // Only add thumbnail details if // we have thumbnail stored locally. if media.Thumbnail.Path != "" { api.Meta.Small = apimodel.MediaDimensions{ Width: media.FileMeta.Small.Width, Height: media.FileMeta.Small.Height, Aspect: media.FileMeta.Small.Aspect, Size: toAPISize(media.FileMeta.Small.Width, media.FileMeta.Small.Height), } // Copy over local thumbnail file URL. api.PreviewURL = util.Ptr(media.Thumbnail.URL) } } // Set remaining API attachment fields. api.Blurhash = util.PtrIf(media.Blurhash) api.RemoteURL = util.PtrIf(media.RemoteURL) api.PreviewRemoteURL = util.PtrIf(media.Thumbnail.RemoteURL) api.Description = util.PtrIf(media.Description) return api, nil } // MentionToAPIMention converts a gts model mention into its api (frontend) representation for serialization on the API. func (c *Converter) MentionToAPIMention(ctx context.Context, m *gtsmodel.Mention) (apimodel.Mention, error) { if m.TargetAccount == nil { targetAccount, err := c.state.DB.GetAccountByID(ctx, m.TargetAccountID) if err != nil { return apimodel.Mention{}, err } m.TargetAccount = targetAccount } var acct string if m.TargetAccount.IsLocal() { acct = m.TargetAccount.Username } else { // Domain may be in Punycode, // de-punify it just in case. d, err := util.DePunify(m.TargetAccount.Domain) if err != nil { err = fmt.Errorf("MentionToAPIMention: error de-punifying domain %s for account id %s: %w", m.TargetAccount.Domain, m.TargetAccountID, err) return apimodel.Mention{}, err } acct = m.TargetAccount.Username + "@" + d } return apimodel.Mention{ ID: m.TargetAccount.ID, Username: m.TargetAccount.Username, URL: m.TargetAccount.URL, Acct: acct, }, nil } // EmojiToAPIEmoji converts a gts model emoji into its api (frontend) representation for serialization on the API. func (c *Converter) EmojiToAPIEmoji(ctx context.Context, e *gtsmodel.Emoji) (apimodel.Emoji, error) { var category string if e.CategoryID != "" { if e.Category == nil { var err error e.Category, err = c.state.DB.GetEmojiCategory(ctx, e.CategoryID) if err != nil { return apimodel.Emoji{}, err } } category = e.Category.Name } return apimodel.Emoji{ Shortcode: e.Shortcode, URL: e.ImageURL, StaticURL: e.ImageStaticURL, VisibleInPicker: *e.VisibleInPicker, Category: category, }, nil } // EmojiToAdminAPIEmoji converts a gts model emoji into an API representation with extra admin information. func (c *Converter) EmojiToAdminAPIEmoji(ctx context.Context, e *gtsmodel.Emoji) (*apimodel.AdminEmoji, error) { emoji, err := c.EmojiToAPIEmoji(ctx, e) if err != nil { return nil, err } if !e.IsLocal() { // Domain may be in Punycode, // de-punify it just in case. var err error e.Domain, err = util.DePunify(e.Domain) if err != nil { err = fmt.Errorf("EmojiToAdminAPIEmoji: error de-punifying domain %s for emoji id %s: %w", e.Domain, e.ID, err) return nil, err } } return &apimodel.AdminEmoji{ Emoji: emoji, ID: e.ID, Disabled: *e.Disabled, Domain: e.Domain, UpdatedAt: util.FormatISO8601(e.UpdatedAt), TotalFileSize: e.ImageFileSize + e.ImageStaticFileSize, ContentType: e.ImageContentType, URI: e.URI, }, nil } // EmojiCategoryToAPIEmojiCategory converts a gts model emoji category into its api (frontend) representation. func (c *Converter) EmojiCategoryToAPIEmojiCategory(ctx context.Context, category *gtsmodel.EmojiCategory) (*apimodel.EmojiCategory, error) { return &apimodel.EmojiCategory{ ID: category.ID, Name: category.Name, }, nil } // TagToAPITag converts a gts model tag into its api (frontend) representation for serialization on the API. // If stubHistory is set to 'true', then the 'history' field of the tag will be populated with a pointer to an empty slice, for API compatibility reasons. func (c *Converter) TagToAPITag(ctx context.Context, t *gtsmodel.Tag, stubHistory bool) (apimodel.Tag, error) { return apimodel.Tag{ Name: strings.ToLower(t.Name), URL: uris.URIForTag(t.Name), History: func() *[]any { if !stubHistory { return nil } h := make([]any, 0) return &h }(), }, nil } // StatusToAPIStatus converts a gts model status into its api // (frontend) representation for serialization on the API. // // Requesting account can be nil. // // Filter context can be the empty string if these statuses are not being filtered. // // If there is a matching "hide" filter, the returned status will be nil with a ErrHideStatus error; // callers need to handle that case by excluding it from results. func (c *Converter) StatusToAPIStatus( ctx context.Context, s *gtsmodel.Status, requestingAccount *gtsmodel.Account, filterContext statusfilter.FilterContext, filters []*gtsmodel.Filter, mutes *usermute.CompiledUserMuteList, ) (*apimodel.Status, error) { apiStatus, err := c.statusToFrontend( ctx, s, requestingAccount, // Can be nil. filterContext, // Can be empty. filters, mutes, ) if err != nil { return nil, err } // Convert author to API model. acct, err := c.AccountToAPIAccountPublic(ctx, s.Account) if err != nil { return nil, gtserror.Newf("error converting status acct: %w", err) } apiStatus.Account = acct // Convert author of boosted // status (if set) to API model. if apiStatus.Reblog != nil { boostAcct, err := c.AccountToAPIAccountPublic(ctx, s.BoostOfAccount) if err != nil { return nil, gtserror.Newf("error converting boost acct: %w", err) } apiStatus.Reblog.Account = boostAcct } // Normalize status for API by pruning // attachments that were not locally // stored, replacing them with a helpful // message + links to remote. var aside string aside, apiStatus.MediaAttachments = placeholderAttachments(apiStatus.MediaAttachments) apiStatus.Content += aside if apiStatus.Reblog != nil { aside, apiStatus.Reblog.MediaAttachments = placeholderAttachments(apiStatus.Reblog.MediaAttachments) apiStatus.Reblog.Content += aside } return apiStatus, nil } // statusToAPIFilterResults applies filters and mutes to a status and returns an API filter result object. // The result may be nil if no filters matched. // If the status should not be returned at all, it returns the ErrHideStatus error. func (c *Converter) statusToAPIFilterResults( ctx context.Context, s *gtsmodel.Status, requestingAccount *gtsmodel.Account, filterContext statusfilter.FilterContext, filters []*gtsmodel.Filter, mutes *usermute.CompiledUserMuteList, ) ([]apimodel.FilterResult, error) { // If there are no filters or mutes, we're done. // We never hide statuses authored by the requesting account, // since not being able to see your own posts is confusing. if filterContext == "" || (len(filters) == 0 && mutes.Len() == 0) || s.AccountID == requestingAccount.ID { return nil, nil } // Both mutes and filters can expire. now := time.Now() // If the requesting account mutes the account that created this status, hide the status. if mutes.Matches(s.AccountID, filterContext, now) { return nil, statusfilter.ErrHideStatus } // If this status is part of a multi-account discussion, // and all of the accounts replied to or mentioned are invisible to the requesting account // (due to blocks, domain blocks, moderation, etc.), // or are muted, hide the status. // First, collect the accounts we have to check. otherAccounts := make([]*gtsmodel.Account, 0, 1+len(s.Mentions)) if s.InReplyToAccount != nil { otherAccounts = append(otherAccounts, s.InReplyToAccount) } for _, mention := range s.Mentions { otherAccounts = append(otherAccounts, mention.TargetAccount) } // If there are no other accounts, skip this check. if len(otherAccounts) > 0 { // Start by assuming that they're all invisible or muted. allOtherAccountsInvisibleOrMuted := true for _, account := range otherAccounts { // Is this account visible? visible, err := c.visFilter.AccountVisible(ctx, requestingAccount, account) if err != nil { return nil, err } if !visible { // It's invisible. Check the next account. continue } // If visible, is it muted? if mutes.Matches(account.ID, filterContext, now) { // It's muted. Check the next account. continue } // If we get here, the account is visible and not muted. // We should show this status, and don't have to check any more accounts. allOtherAccountsInvisibleOrMuted = false break } // If we didn't find any visible non-muted accounts, hide the status. if allOtherAccountsInvisibleOrMuted { return nil, statusfilter.ErrHideStatus } } // At this point, the status isn't muted, but might still be filtered. // Record all matching warn filters and the reasons they matched. filterResults := make([]apimodel.FilterResult, 0, len(filters)) for _, filter := range filters { if !filterAppliesInContext(filter, filterContext) { // Filter doesn't apply to this context. continue } if filter.Expired(now) { continue } // List all matching keywords. keywordMatches := make([]string, 0, len(filter.Keywords)) fields := filterableTextFields(s) for _, filterKeyword := range filter.Keywords { var isMatch bool for _, field := range fields { if filterKeyword.Regexp.MatchString(field) { isMatch = true break } } if isMatch { keywordMatches = append(keywordMatches, filterKeyword.Keyword) } } // A status has only one ID. Not clear why this is a list in the Mastodon API. statusMatches := make([]string, 0, 1) for _, filterStatus := range filter.Statuses { if s.ID == filterStatus.StatusID { statusMatches = append(statusMatches, filterStatus.StatusID) break } } if len(keywordMatches) > 0 || len(statusMatches) > 0 { switch filter.Action { case gtsmodel.FilterActionWarn: // Record what matched. apiFilter, err := c.FilterToAPIFilterV2(ctx, filter) if err != nil { return nil, err } filterResults = append(filterResults, apimodel.FilterResult{ Filter: *apiFilter, KeywordMatches: keywordMatches, StatusMatches: statusMatches, }) case gtsmodel.FilterActionHide: // Don't show this status. Immediate return. return nil, statusfilter.ErrHideStatus } } } return filterResults, nil } // filterableTextFields returns all text from a status that we might want to filter on: // - content // - content warning // - media descriptions // - poll options func filterableTextFields(s *gtsmodel.Status) []string { fieldCount := 2 + len(s.Attachments) if s.Poll != nil { fieldCount += len(s.Poll.Options) } fields := make([]string, 0, fieldCount) if s.Content != "" { fields = append(fields, text.SanitizeToPlaintext(s.Content)) } if s.ContentWarning != "" { fields = append(fields, s.ContentWarning) } for _, attachment := range s.Attachments { if attachment.Description != "" { fields = append(fields, attachment.Description) } } if s.Poll != nil { for _, option := range s.Poll.Options { if option != "" { fields = append(fields, option) } } } return fields } // filterAppliesInContext returns whether a given filter applies in a given context. func filterAppliesInContext(filter *gtsmodel.Filter, filterContext statusfilter.FilterContext) bool { switch filterContext { case statusfilter.FilterContextHome: return util.PtrOrValue(filter.ContextHome, false) case statusfilter.FilterContextNotifications: return util.PtrOrValue(filter.ContextNotifications, false) case statusfilter.FilterContextPublic: return util.PtrOrValue(filter.ContextPublic, false) case statusfilter.FilterContextThread: return util.PtrOrValue(filter.ContextThread, false) case statusfilter.FilterContextAccount: return util.PtrOrValue(filter.ContextAccount, false) } return false } // StatusToWebStatus converts a gts model status into an // api representation suitable for serving into a web template. // // Requesting account can be nil. func (c *Converter) StatusToWebStatus( ctx context.Context, s *gtsmodel.Status, ) (*apimodel.WebStatus, error) { apiStatus, err := c.statusToFrontend(ctx, s, nil, // No authed requester. statusfilter.FilterContextNone, // No filters. nil, // No filters. nil, // No mutes. ) if err != nil { return nil, err } // Convert status author to web model. acct, err := c.AccountToWebAccount(ctx, s.Account) if err != nil { return nil, err } webStatus := &apimodel.WebStatus{ Status: apiStatus, Account: acct, } // Whack a newline before and after each "pre" to make it easier to outdent it. webStatus.Content = strings.ReplaceAll(webStatus.Content, "
", "\n
")
	webStatus.Content = strings.ReplaceAll(webStatus.Content, "
", "
\n") // Add additional information for template. // Assume empty langs, hope for not empty language. webStatus.LanguageTag = new(language.Language) if lang := webStatus.Language; lang != nil { langTag, err := language.Parse(*lang) if err != nil { log.Warnf( ctx, "error parsing %s as language tag: %v", *lang, err, ) } else { webStatus.LanguageTag = langTag } } if poll := webStatus.Poll; poll != nil { // Calculate vote share of each poll option and // format them for easier template consumption. totalVotes := poll.VotesCount PollOptions := make([]apimodel.WebPollOption, len(poll.Options)) for i, option := range poll.Options { var voteShare float32 if totalVotes != 0 && option.VotesCount != nil { voteShare = float32(*option.VotesCount) / float32(totalVotes) * 100 } // Format to two decimal points and ditch any // trailing zeroes. // // We want to be precise enough that eg., "1.54%" // is distinct from "1.68%" in polls with loads // of votes. // // However, if we've got eg., a two-option poll // in which each option has half the votes, then // "50%" looks better than "50.00%". // // By the same token, it's pointless to show // "0.00%" or "100.00%". voteShareStr := fmt.Sprintf("%.2f", voteShare) voteShareStr = strings.TrimSuffix(voteShareStr, ".00") webPollOption := apimodel.WebPollOption{ PollOption: option, PollID: poll.ID, Emojis: webStatus.Emojis, LanguageTag: webStatus.LanguageTag, VoteShare: voteShare, VoteShareStr: voteShareStr, } PollOptions[i] = webPollOption } webStatus.PollOptions = PollOptions } // Mark local. webStatus.Local = *s.Local // Set additional templating // variables on media attachments. // Get gtsmodel attachments // into a convenient map. ogAttachments := make( map[string]*gtsmodel.MediaAttachment, len(s.Attachments), ) for _, a := range s.Attachments { ogAttachments[a.ID] = a } // Convert each API attachment // into a web attachment. webStatus.MediaAttachments = make( []*apimodel.WebAttachment, len(apiStatus.MediaAttachments), ) for i, apiAttachment := range apiStatus.MediaAttachments { ogAttachment := ogAttachments[apiAttachment.ID] webStatus.MediaAttachments[i] = &apimodel.WebAttachment{ Attachment: apiAttachment, Sensitive: apiStatus.Sensitive, MIMEType: ogAttachment.File.ContentType, PreviewMIMEType: ogAttachment.Thumbnail.ContentType, } } return webStatus, nil } // StatusToAPIStatusSource returns the *apimodel.StatusSource of the given status. // Callers should check beforehand whether a requester has permission to view the // source of the status, and ensure they're passing only a local status into this function. func (c *Converter) StatusToAPIStatusSource(ctx context.Context, s *gtsmodel.Status) (*apimodel.StatusSource, error) { // TODO: remove this when edit support is added. text := "**STATUS EDITS ARE NOT CURRENTLY SUPPORTED IN GOTOSOCIAL (coming in 2024)**\n" + "You can review the original text of your status below, but you will not be able to submit this edit.\n\n---\n\n" + s.Text return &apimodel.StatusSource{ ID: s.ID, Text: text, SpoilerText: s.ContentWarning, }, nil } // statusToFrontend is a package internal function for // parsing a status into its initial frontend representation. // // Requesting account can be nil. // // This function also doesn't handle converting the // account to api/web model -- the caller must do that. func (c *Converter) statusToFrontend( ctx context.Context, status *gtsmodel.Status, requestingAccount *gtsmodel.Account, filterContext statusfilter.FilterContext, filters []*gtsmodel.Filter, mutes *usermute.CompiledUserMuteList, ) ( *apimodel.Status, error, ) { apiStatus, err := c.baseStatusToFrontend(ctx, status, requestingAccount, filterContext, filters, mutes, ) if err != nil { return nil, err } if status.BoostOf != nil { reblog, err := c.baseStatusToFrontend(ctx, status.BoostOf, requestingAccount, filterContext, filters, mutes, ) if errors.Is(err, statusfilter.ErrHideStatus) { // If we'd hide the original status, hide the boost. return nil, err } else if err != nil { return nil, gtserror.Newf("error converting boosted status: %w", err) } // Set boosted status and set interactions and filter results from original. apiStatus.Reblog = &apimodel.StatusReblogged{reblog} apiStatus.Favourited = apiStatus.Reblog.Favourited apiStatus.Bookmarked = apiStatus.Reblog.Bookmarked apiStatus.Muted = apiStatus.Reblog.Muted apiStatus.Reblogged = apiStatus.Reblog.Reblogged apiStatus.Pinned = apiStatus.Reblog.Pinned apiStatus.Filtered = apiStatus.Reblog.Filtered } return apiStatus, nil } // baseStatusToFrontend performs the main logic // of statusToFrontend() without handling of boost // logic, to prevent *possible* recursion issues. // // This function also doesn't handle converting the // account to api/web model -- the caller must do that. func (c *Converter) baseStatusToFrontend( ctx context.Context, s *gtsmodel.Status, requestingAccount *gtsmodel.Account, filterContext statusfilter.FilterContext, filters []*gtsmodel.Filter, mutes *usermute.CompiledUserMuteList, ) ( *apimodel.Status, error, ) { // Try to populate status struct pointer fields. // We can continue in many cases of partial failure, // but there are some fields we actually need. if err := c.state.DB.PopulateStatus(ctx, s); err != nil { switch { case s.Account == nil: return nil, gtserror.Newf("error(s) populating status, required account not set: %w", err) case s.BoostOfID != "" && s.BoostOf == nil: return nil, gtserror.Newf("error(s) populating status, required boost not set: %w", err) default: log.Errorf(ctx, "error(s) populating status, will continue: %v", err) } } repliesCount, err := c.state.DB.CountStatusReplies(ctx, s.ID) if err != nil { return nil, gtserror.Newf("error counting replies: %w", err) } reblogsCount, err := c.state.DB.CountStatusBoosts(ctx, s.ID) if err != nil { return nil, gtserror.Newf("error counting reblogs: %w", err) } favesCount, err := c.state.DB.CountStatusFaves(ctx, s.ID) if err != nil { return nil, gtserror.Newf("error counting faves: %w", err) } apiAttachments, err := c.convertAttachmentsToAPIAttachments(ctx, s.Attachments, s.AttachmentIDs) if err != nil { log.Errorf(ctx, "error converting status attachments: %v", err) } apiMentions, err := c.convertMentionsToAPIMentions(ctx, s.Mentions, s.MentionIDs) if err != nil { log.Errorf(ctx, "error converting status mentions: %v", err) } apiTags, err := c.convertTagsToAPITags(ctx, s.Tags, s.TagIDs) if err != nil { log.Errorf(ctx, "error converting status tags: %v", err) } apiEmojis, err := c.convertEmojisToAPIEmojis(ctx, s.Emojis, s.EmojiIDs) if err != nil { log.Errorf(ctx, "error converting status emojis: %v", err) } // Take status's interaction policy, or // fall back to default for its visibility. var p *gtsmodel.InteractionPolicy if s.InteractionPolicy != nil { p = s.InteractionPolicy } else { p = gtsmodel.DefaultInteractionPolicyFor(s.Visibility) } apiInteractionPolicy, err := c.InteractionPolicyToAPIInteractionPolicy(ctx, p, s, requestingAccount) if err != nil { return nil, gtserror.Newf("error converting interaction policy: %w", err) } apiStatus := &apimodel.Status{ ID: s.ID, CreatedAt: util.FormatISO8601(s.CreatedAt), InReplyToID: nil, // Set below. InReplyToAccountID: nil, // Set below. Sensitive: *s.Sensitive, SpoilerText: s.ContentWarning, Visibility: c.VisToAPIVis(ctx, s.Visibility), Language: nil, // Set below. URI: s.URI, URL: s.URL, RepliesCount: repliesCount, ReblogsCount: reblogsCount, FavouritesCount: favesCount, Content: s.Content, Reblog: nil, // Set below. Application: nil, // Set below. Account: nil, // Caller must do this. MediaAttachments: apiAttachments, Mentions: apiMentions, Tags: apiTags, Emojis: apiEmojis, Card: nil, // TODO: implement cards Text: s.Text, InteractionPolicy: *apiInteractionPolicy, } // Nullable fields. if s.InReplyToID != "" { apiStatus.InReplyToID = util.Ptr(s.InReplyToID) } if s.InReplyToAccountID != "" { apiStatus.InReplyToAccountID = util.Ptr(s.InReplyToAccountID) } if s.Language != "" { apiStatus.Language = util.Ptr(s.Language) } if app := s.CreatedWithApplication; app != nil { apiStatus.Application, err = c.AppToAPIAppPublic(ctx, app) if err != nil { return nil, gtserror.Newf( "error converting application %s: %w", s.CreatedWithApplicationID, err, ) } } if s.Poll != nil { // Set originating // status on the poll. poll := s.Poll poll.Status = s apiStatus.Poll, err = c.PollToAPIPoll(ctx, requestingAccount, poll) if err != nil { return nil, fmt.Errorf("error converting poll: %w", err) } } // Status interactions. // if s.BoostOf != nil { //nolint // populated *outside* this // function to prevent recursion. } else { interacts, err := c.interactionsWithStatusForAccount(ctx, s, requestingAccount) if err != nil { log.Errorf(ctx, "error getting interactions for status %s for account %s: %v", s.ID, requestingAccount.ID, err, ) // Ensure non-nil object. interacts = new(statusInteractions) } apiStatus.Favourited = interacts.Favourited apiStatus.Bookmarked = interacts.Bookmarked apiStatus.Muted = interacts.Muted apiStatus.Reblogged = interacts.Reblogged apiStatus.Pinned = interacts.Pinned } // If web URL is empty for whatever // reason, provide AP URI as fallback. if s.URL == "" { s.URL = s.URI } // Apply filters. filterResults, err := c.statusToAPIFilterResults(ctx, s, requestingAccount, filterContext, filters, mutes) if err != nil { if errors.Is(err, statusfilter.ErrHideStatus) { return nil, err } return nil, fmt.Errorf("error applying filters: %w", err) } apiStatus.Filtered = filterResults return apiStatus, nil } // VisToAPIVis converts a gts visibility into its api equivalent func (c *Converter) VisToAPIVis(ctx context.Context, m gtsmodel.Visibility) apimodel.Visibility { switch m { case gtsmodel.VisibilityPublic: return apimodel.VisibilityPublic case gtsmodel.VisibilityUnlocked: return apimodel.VisibilityUnlisted case gtsmodel.VisibilityFollowersOnly, gtsmodel.VisibilityMutualsOnly: return apimodel.VisibilityPrivate case gtsmodel.VisibilityDirect: return apimodel.VisibilityDirect } return "" } // InstanceRuleToAdminAPIRule converts a local instance rule into its api equivalent for serving at /api/v1/admin/instance/rules/:id func (c *Converter) InstanceRuleToAPIRule(r gtsmodel.Rule) apimodel.InstanceRule { return apimodel.InstanceRule{ ID: r.ID, Text: r.Text, } } // InstanceRulesToAPIRules converts all local instance rules into their api equivalent for serving at /api/v1/instance/rules func (c *Converter) InstanceRulesToAPIRules(r []gtsmodel.Rule) []apimodel.InstanceRule { rules := make([]apimodel.InstanceRule, len(r)) for i, v := range r { rules[i] = c.InstanceRuleToAPIRule(v) } return rules } // InstanceRuleToAdminAPIRule converts a local instance rule into its api equivalent for serving at /api/v1/admin/instance/rules/:id func (c *Converter) InstanceRuleToAdminAPIRule(r *gtsmodel.Rule) *apimodel.AdminInstanceRule { return &apimodel.AdminInstanceRule{ ID: r.ID, CreatedAt: util.FormatISO8601(r.CreatedAt), UpdatedAt: util.FormatISO8601(r.UpdatedAt), Text: r.Text, } } // InstanceToAPIV1Instance converts a gts instance into its api equivalent for serving at /api/v1/instance func (c *Converter) InstanceToAPIV1Instance(ctx context.Context, i *gtsmodel.Instance) (*apimodel.InstanceV1, error) { instance := &apimodel.InstanceV1{ URI: i.URI, AccountDomain: config.GetAccountDomain(), Title: i.Title, Description: i.Description, DescriptionText: i.DescriptionText, ShortDescription: i.ShortDescription, ShortDescriptionText: i.ShortDescriptionText, Email: i.ContactEmail, Version: config.GetSoftwareVersion(), Languages: config.GetInstanceLanguages().TagStrs(), Registrations: config.GetAccountsRegistrationOpen(), ApprovalRequired: true, // approval always required InvitesEnabled: false, // todo: not supported yet MaxTootChars: uint(config.GetStatusesMaxChars()), Rules: c.InstanceRulesToAPIRules(i.Rules), Terms: i.Terms, TermsRaw: i.TermsText, } if config.GetInstanceInjectMastodonVersion() { instance.Version = toMastodonVersion(instance.Version) } if debug.DEBUG { instance.Debug = util.Ptr(true) } // configuration instance.Configuration.Statuses.MaxCharacters = config.GetStatusesMaxChars() instance.Configuration.Statuses.MaxMediaAttachments = config.GetStatusesMediaMaxFiles() instance.Configuration.Statuses.CharactersReservedPerURL = instanceStatusesCharactersReservedPerURL instance.Configuration.Statuses.SupportedMimeTypes = instanceStatusesSupportedMimeTypes instance.Configuration.MediaAttachments.SupportedMimeTypes = media.SupportedMIMETypes instance.Configuration.MediaAttachments.ImageSizeLimit = int(config.GetMediaRemoteMaxSize()) instance.Configuration.MediaAttachments.ImageMatrixLimit = instanceMediaAttachmentsImageMatrixLimit instance.Configuration.MediaAttachments.VideoSizeLimit = int(config.GetMediaRemoteMaxSize()) instance.Configuration.MediaAttachments.VideoFrameRateLimit = instanceMediaAttachmentsVideoFrameRateLimit instance.Configuration.MediaAttachments.VideoMatrixLimit = instanceMediaAttachmentsVideoMatrixLimit instance.Configuration.Polls.MaxOptions = config.GetStatusesPollMaxOptions() instance.Configuration.Polls.MaxCharactersPerOption = config.GetStatusesPollOptionMaxChars() instance.Configuration.Polls.MinExpiration = instancePollsMinExpiration instance.Configuration.Polls.MaxExpiration = instancePollsMaxExpiration instance.Configuration.Accounts.AllowCustomCSS = config.GetAccountsAllowCustomCSS() instance.Configuration.Accounts.MaxFeaturedTags = instanceAccountsMaxFeaturedTags instance.Configuration.Accounts.MaxProfileFields = instanceAccountsMaxProfileFields instance.Configuration.Emojis.EmojiSizeLimit = int(config.GetMediaEmojiLocalMaxSize()) instance.Configuration.OIDCEnabled = config.GetOIDCEnabled() // URLs instance.URLs.StreamingAPI = "wss://" + i.Domain // statistics stats := make(map[string]*int, 3) userCount, err := c.state.DB.CountInstanceUsers(ctx, i.Domain) if err != nil { return nil, fmt.Errorf("InstanceToAPIV1Instance: db error getting counting instance users: %w", err) } stats["user_count"] = util.Ptr(userCount) statusCount, err := c.state.DB.CountInstanceStatuses(ctx, i.Domain) if err != nil { return nil, fmt.Errorf("InstanceToAPIV1Instance: db error getting counting instance statuses: %w", err) } stats["status_count"] = util.Ptr(statusCount) domainCount, err := c.state.DB.CountInstanceDomains(ctx, i.Domain) if err != nil { return nil, fmt.Errorf("InstanceToAPIV1Instance: db error getting counting instance domains: %w", err) } stats["domain_count"] = util.Ptr(domainCount) instance.Stats = stats // thumbnail iAccount, err := c.state.DB.GetInstanceAccount(ctx, "") if err != nil { return nil, fmt.Errorf("InstanceToAPIV1Instance: db error getting instance account: %w", err) } if iAccount.AvatarMediaAttachmentID != "" { if iAccount.AvatarMediaAttachment == nil { avi, err := c.state.DB.GetAttachmentByID(ctx, iAccount.AvatarMediaAttachmentID) if err != nil { return nil, fmt.Errorf("InstanceToAPIInstance: error getting instance avatar attachment with id %s: %w", iAccount.AvatarMediaAttachmentID, err) } iAccount.AvatarMediaAttachment = avi } instance.Thumbnail = iAccount.AvatarMediaAttachment.URL instance.ThumbnailType = iAccount.AvatarMediaAttachment.File.ContentType instance.ThumbnailStatic = iAccount.AvatarMediaAttachment.Thumbnail.URL instance.ThumbnailStaticType = iAccount.AvatarMediaAttachment.Thumbnail.ContentType instance.ThumbnailDescription = iAccount.AvatarMediaAttachment.Description } else { instance.Thumbnail = config.GetProtocol() + "://" + i.Domain + "/assets/logo.webp" // default thumb } // contact account if i.ContactAccountID != "" { if i.ContactAccount == nil { contactAccount, err := c.state.DB.GetAccountByID(ctx, i.ContactAccountID) if err != nil { return nil, fmt.Errorf("InstanceToAPIV1Instance: db error getting instance contact account %s: %w", i.ContactAccountID, err) } i.ContactAccount = contactAccount } account, err := c.AccountToAPIAccountPublic(ctx, i.ContactAccount) if err != nil { return nil, fmt.Errorf("InstanceToAPIV1Instance: error converting instance contact account %s: %w", i.ContactAccountID, err) } instance.ContactAccount = account } return instance, nil } // InstanceToAPIV2Instance converts a gts instance into its api equivalent for serving at /api/v2/instance func (c *Converter) InstanceToAPIV2Instance(ctx context.Context, i *gtsmodel.Instance) (*apimodel.InstanceV2, error) { instance := &apimodel.InstanceV2{ Domain: i.Domain, AccountDomain: config.GetAccountDomain(), Title: i.Title, Version: config.GetSoftwareVersion(), SourceURL: instanceSourceURL, Description: i.Description, DescriptionText: i.DescriptionText, Usage: apimodel.InstanceV2Usage{}, // todo: not implemented Languages: config.GetInstanceLanguages().TagStrs(), Rules: c.InstanceRulesToAPIRules(i.Rules), Terms: i.Terms, TermsText: i.TermsText, } if config.GetInstanceInjectMastodonVersion() { instance.Version = toMastodonVersion(instance.Version) } if debug.DEBUG { instance.Debug = util.Ptr(true) } // thumbnail thumbnail := apimodel.InstanceV2Thumbnail{} iAccount, err := c.state.DB.GetInstanceAccount(ctx, "") if err != nil { return nil, fmt.Errorf("InstanceToAPIV2Instance: db error getting instance account: %w", err) } if iAccount.AvatarMediaAttachmentID != "" { if iAccount.AvatarMediaAttachment == nil { avi, err := c.state.DB.GetAttachmentByID(ctx, iAccount.AvatarMediaAttachmentID) if err != nil { return nil, fmt.Errorf("InstanceToAPIV2Instance: error getting instance avatar attachment with id %s: %w", iAccount.AvatarMediaAttachmentID, err) } iAccount.AvatarMediaAttachment = avi } thumbnail.URL = iAccount.AvatarMediaAttachment.URL thumbnail.Type = iAccount.AvatarMediaAttachment.File.ContentType thumbnail.StaticURL = iAccount.AvatarMediaAttachment.Thumbnail.URL thumbnail.StaticType = iAccount.AvatarMediaAttachment.Thumbnail.ContentType thumbnail.Description = iAccount.AvatarMediaAttachment.Description thumbnail.Blurhash = iAccount.AvatarMediaAttachment.Blurhash } else { thumbnail.URL = config.GetProtocol() + "://" + i.Domain + "/assets/logo.webp" // default thumb } instance.Thumbnail = thumbnail // configuration instance.Configuration.URLs.Streaming = "wss://" + i.Domain instance.Configuration.Statuses.MaxCharacters = config.GetStatusesMaxChars() instance.Configuration.Statuses.MaxMediaAttachments = config.GetStatusesMediaMaxFiles() instance.Configuration.Statuses.CharactersReservedPerURL = instanceStatusesCharactersReservedPerURL instance.Configuration.Statuses.SupportedMimeTypes = instanceStatusesSupportedMimeTypes instance.Configuration.MediaAttachments.SupportedMimeTypes = media.SupportedMIMETypes instance.Configuration.MediaAttachments.ImageSizeLimit = int(config.GetMediaRemoteMaxSize()) instance.Configuration.MediaAttachments.ImageMatrixLimit = instanceMediaAttachmentsImageMatrixLimit instance.Configuration.MediaAttachments.VideoSizeLimit = int(config.GetMediaRemoteMaxSize()) instance.Configuration.MediaAttachments.VideoFrameRateLimit = instanceMediaAttachmentsVideoFrameRateLimit instance.Configuration.MediaAttachments.VideoMatrixLimit = instanceMediaAttachmentsVideoMatrixLimit instance.Configuration.Polls.MaxOptions = config.GetStatusesPollMaxOptions() instance.Configuration.Polls.MaxCharactersPerOption = config.GetStatusesPollOptionMaxChars() instance.Configuration.Polls.MinExpiration = instancePollsMinExpiration instance.Configuration.Polls.MaxExpiration = instancePollsMaxExpiration instance.Configuration.Accounts.AllowCustomCSS = config.GetAccountsAllowCustomCSS() instance.Configuration.Accounts.MaxFeaturedTags = instanceAccountsMaxFeaturedTags instance.Configuration.Accounts.MaxProfileFields = instanceAccountsMaxProfileFields instance.Configuration.Emojis.EmojiSizeLimit = int(config.GetMediaEmojiLocalMaxSize()) instance.Configuration.OIDCEnabled = config.GetOIDCEnabled() // registrations instance.Registrations.Enabled = config.GetAccountsRegistrationOpen() instance.Registrations.ApprovalRequired = true // always required instance.Registrations.Message = nil // todo: not implemented // contact instance.Contact.Email = i.ContactEmail if i.ContactAccountID != "" { if i.ContactAccount == nil { contactAccount, err := c.state.DB.GetAccountByID(ctx, i.ContactAccountID) if err != nil { return nil, fmt.Errorf("InstanceToAPIV2Instance: db error getting instance contact account %s: %w", i.ContactAccountID, err) } i.ContactAccount = contactAccount } account, err := c.AccountToAPIAccountPublic(ctx, i.ContactAccount) if err != nil { return nil, fmt.Errorf("InstanceToAPIV2Instance: error converting instance contact account %s: %w", i.ContactAccountID, err) } instance.Contact.Account = account } return instance, nil } // RelationshipToAPIRelationship converts a gts relationship into its api equivalent for serving in various places func (c *Converter) RelationshipToAPIRelationship(ctx context.Context, r *gtsmodel.Relationship) (*apimodel.Relationship, error) { return &apimodel.Relationship{ ID: r.ID, Following: r.Following, ShowingReblogs: r.ShowingReblogs, Notifying: r.Notifying, FollowedBy: r.FollowedBy, Blocking: r.Blocking, BlockedBy: r.BlockedBy, Muting: r.Muting, MutingNotifications: r.MutingNotifications, Requested: r.Requested, RequestedBy: r.RequestedBy, DomainBlocking: r.DomainBlocking, Endorsed: r.Endorsed, Note: r.Note, }, nil } // NotificationToAPINotification converts a gts notification into a api notification func (c *Converter) NotificationToAPINotification( ctx context.Context, n *gtsmodel.Notification, filters []*gtsmodel.Filter, mutes *usermute.CompiledUserMuteList, ) (*apimodel.Notification, error) { if n.TargetAccount == nil { tAccount, err := c.state.DB.GetAccountByID(ctx, n.TargetAccountID) if err != nil { return nil, fmt.Errorf("NotificationToapi: error getting target account with id %s from the db: %s", n.TargetAccountID, err) } n.TargetAccount = tAccount } if n.OriginAccount == nil { ogAccount, err := c.state.DB.GetAccountByID(ctx, n.OriginAccountID) if err != nil { return nil, fmt.Errorf("NotificationToapi: error getting origin account with id %s from the db: %s", n.OriginAccountID, err) } n.OriginAccount = ogAccount } apiAccount, err := c.AccountToAPIAccountPublic(ctx, n.OriginAccount) if err != nil { return nil, fmt.Errorf("NotificationToapi: error converting account to api: %s", err) } var apiStatus *apimodel.Status if n.StatusID != "" { if n.Status == nil { status, err := c.state.DB.GetStatusByID(ctx, n.StatusID) if err != nil { return nil, fmt.Errorf("NotificationToapi: error getting status with id %s from the db: %s", n.StatusID, err) } n.Status = status } if n.Status.Account == nil { if n.Status.AccountID == n.TargetAccount.ID { n.Status.Account = n.TargetAccount } else if n.Status.AccountID == n.OriginAccount.ID { n.Status.Account = n.OriginAccount } } var err error apiStatus, err = c.StatusToAPIStatus(ctx, n.Status, n.TargetAccount, statusfilter.FilterContextNotifications, filters, mutes) if err != nil { if errors.Is(err, statusfilter.ErrHideStatus) { return nil, err } return nil, fmt.Errorf("NotificationToapi: error converting status to api: %s", err) } } if apiStatus != nil && apiStatus.Reblog != nil { // use the actual reblog status for the notifications endpoint apiStatus = apiStatus.Reblog.Status } return &apimodel.Notification{ ID: n.ID, Type: string(n.NotificationType), CreatedAt: util.FormatISO8601(n.CreatedAt), Account: apiAccount, Status: apiStatus, }, nil } // ConversationToAPIConversation converts a conversation into its API representation. // The conversation status will be filtered using the notification filter context, // and may be nil if the status was hidden. func (c *Converter) ConversationToAPIConversation( ctx context.Context, conversation *gtsmodel.Conversation, requestingAccount *gtsmodel.Account, filters []*gtsmodel.Filter, mutes *usermute.CompiledUserMuteList, ) (*apimodel.Conversation, error) { apiConversation := &apimodel.Conversation{ ID: conversation.ID, Unread: !*conversation.Read, Accounts: []apimodel.Account{}, } for _, account := range conversation.OtherAccounts { var apiAccount *apimodel.Account blocked, err := c.state.DB.IsEitherBlocked(ctx, requestingAccount.ID, account.ID) if err != nil { return nil, gtserror.Newf( "DB error checking blocks between accounts %s and %s: %w", requestingAccount.ID, account.ID, err, ) } if blocked || account.IsSuspended() { apiAccount, err = c.AccountToAPIAccountBlocked(ctx, account) } else { apiAccount, err = c.AccountToAPIAccountPublic(ctx, account) } if err != nil { return nil, gtserror.Newf( "error converting account %s to API representation: %w", account.ID, err, ) } apiConversation.Accounts = append(apiConversation.Accounts, *apiAccount) } if conversation.LastStatus != nil { var err error apiConversation.LastStatus, err = c.StatusToAPIStatus( ctx, conversation.LastStatus, requestingAccount, statusfilter.FilterContextNotifications, filters, mutes, ) if err != nil && !errors.Is(err, statusfilter.ErrHideStatus) { return nil, gtserror.Newf( "error converting status %s to API representation: %w", conversation.LastStatus.ID, err, ) } } return apiConversation, nil } // DomainPermToAPIDomainPerm converts a gts model domin block or allow into an api domain permission. func (c *Converter) DomainPermToAPIDomainPerm( ctx context.Context, d gtsmodel.DomainPermission, export bool, ) (*apimodel.DomainPermission, error) { // Domain may be in Punycode, // de-punify it just in case. domain, err := util.DePunify(d.GetDomain()) if err != nil { return nil, gtserror.Newf("error de-punifying domain %s: %w", d.GetDomain(), err) } domainPerm := &apimodel.DomainPermission{ Domain: apimodel.Domain{ Domain: domain, PublicComment: d.GetPublicComment(), }, } // If we're exporting, provide // only bare minimum detail. if export { return domainPerm, nil } domainPerm.ID = d.GetID() domainPerm.Obfuscate = *d.GetObfuscate() domainPerm.PrivateComment = d.GetPrivateComment() domainPerm.SubscriptionID = d.GetSubscriptionID() domainPerm.CreatedBy = d.GetCreatedByAccountID() domainPerm.CreatedAt = util.FormatISO8601(d.GetCreatedAt()) return domainPerm, nil } // ReportToAPIReport converts a gts model report into an api model report, for serving at /api/v1/reports func (c *Converter) ReportToAPIReport(ctx context.Context, r *gtsmodel.Report) (*apimodel.Report, error) { report := &apimodel.Report{ ID: r.ID, CreatedAt: util.FormatISO8601(r.CreatedAt), ActionTaken: !r.ActionTakenAt.IsZero(), Category: "other", // todo: only support default 'other' category right now Comment: r.Comment, Forwarded: *r.Forwarded, StatusIDs: r.StatusIDs, RuleIDs: r.RuleIDs, } if !r.ActionTakenAt.IsZero() { actionTakenAt := util.FormatISO8601(r.ActionTakenAt) report.ActionTakenAt = &actionTakenAt } if actionComment := r.ActionTaken; actionComment != "" { report.ActionTakenComment = &actionComment } if r.TargetAccount == nil { tAccount, err := c.state.DB.GetAccountByID(ctx, r.TargetAccountID) if err != nil { return nil, fmt.Errorf("ReportToAPIReport: error getting target account with id %s from the db: %s", r.TargetAccountID, err) } r.TargetAccount = tAccount } apiAccount, err := c.AccountToAPIAccountPublic(ctx, r.TargetAccount) if err != nil { return nil, fmt.Errorf("ReportToAPIReport: error converting target account to api: %s", err) } report.TargetAccount = apiAccount return report, nil } // ReportToAdminAPIReport converts a gts model report into an admin view report, for serving at /api/v1/admin/reports func (c *Converter) ReportToAdminAPIReport(ctx context.Context, r *gtsmodel.Report, requestingAccount *gtsmodel.Account) (*apimodel.AdminReport, error) { var ( err error actionTakenAt *string actionTakenComment *string actionTakenByAccount *apimodel.AdminAccountInfo ) if !r.ActionTakenAt.IsZero() { ata := util.FormatISO8601(r.ActionTakenAt) actionTakenAt = &ata } if r.Account == nil { r.Account, err = c.state.DB.GetAccountByID(ctx, r.AccountID) if err != nil { return nil, fmt.Errorf("ReportToAdminAPIReport: error getting account with id %s from the db: %w", r.AccountID, err) } } account, err := c.AccountToAdminAPIAccount(ctx, r.Account) if err != nil { return nil, fmt.Errorf("ReportToAdminAPIReport: error converting account with id %s to adminAPIAccount: %w", r.AccountID, err) } if r.TargetAccount == nil { r.TargetAccount, err = c.state.DB.GetAccountByID(ctx, r.TargetAccountID) if err != nil { return nil, fmt.Errorf("ReportToAdminAPIReport: error getting target account with id %s from the db: %w", r.TargetAccountID, err) } } targetAccount, err := c.AccountToAdminAPIAccount(ctx, r.TargetAccount) if err != nil { return nil, fmt.Errorf("ReportToAdminAPIReport: error converting target account with id %s to adminAPIAccount: %w", r.TargetAccountID, err) } if r.ActionTakenByAccountID != "" { if r.ActionTakenByAccount == nil { r.ActionTakenByAccount, err = c.state.DB.GetAccountByID(ctx, r.ActionTakenByAccountID) if err != nil { return nil, fmt.Errorf("ReportToAdminAPIReport: error getting action taken by account with id %s from the db: %w", r.ActionTakenByAccountID, err) } } actionTakenByAccount, err = c.AccountToAdminAPIAccount(ctx, r.ActionTakenByAccount) if err != nil { return nil, fmt.Errorf("ReportToAdminAPIReport: error converting action taken by account with id %s to adminAPIAccount: %w", r.ActionTakenByAccountID, err) } } statuses := make([]*apimodel.Status, 0, len(r.StatusIDs)) if len(r.StatusIDs) != 0 && len(r.Statuses) == 0 { r.Statuses, err = c.state.DB.GetStatusesByIDs(ctx, r.StatusIDs) if err != nil { return nil, fmt.Errorf("ReportToAdminAPIReport: error getting statuses from the db: %w", err) } } for _, s := range r.Statuses { status, err := c.StatusToAPIStatus(ctx, s, requestingAccount, statusfilter.FilterContextNone, nil, nil) if err != nil { return nil, fmt.Errorf("ReportToAdminAPIReport: error converting status with id %s to api status: %w", s.ID, err) } statuses = append(statuses, status) } rules := make([]*apimodel.InstanceRule, 0, len(r.RuleIDs)) if len(r.RuleIDs) != 0 && len(r.Rules) == 0 { r.Rules, err = c.state.DB.GetRulesByIDs(ctx, r.RuleIDs) if err != nil { return nil, fmt.Errorf("ReportToAdminAPIReport: error getting rules from the db: %w", err) } } for _, v := range r.Rules { rules = append(rules, &apimodel.InstanceRule{ ID: v.ID, Text: v.Text, }) } if ac := r.ActionTaken; ac != "" { actionTakenComment = &ac } return &apimodel.AdminReport{ ID: r.ID, ActionTaken: !r.ActionTakenAt.IsZero(), ActionTakenAt: actionTakenAt, Category: "other", // todo: only support default 'other' category right now Comment: r.Comment, Forwarded: *r.Forwarded, CreatedAt: util.FormatISO8601(r.CreatedAt), UpdatedAt: util.FormatISO8601(r.UpdatedAt), Account: account, TargetAccount: targetAccount, AssignedAccount: actionTakenByAccount, ActionTakenByAccount: actionTakenByAccount, ActionTakenComment: actionTakenComment, Statuses: statuses, Rules: rules, }, nil } // ListToAPIList converts one gts model list into an api model list, for serving at /api/v1/lists/{id} func (c *Converter) ListToAPIList(ctx context.Context, l *gtsmodel.List) (*apimodel.List, error) { return &apimodel.List{ ID: l.ID, Title: l.Title, RepliesPolicy: string(l.RepliesPolicy), }, nil } // MarkersToAPIMarker converts several gts model markers into an api marker, for serving at /api/v1/markers func (c *Converter) MarkersToAPIMarker(ctx context.Context, markers []*gtsmodel.Marker) (*apimodel.Marker, error) { apiMarker := &apimodel.Marker{} for _, marker := range markers { apiTimelineMarker := &apimodel.TimelineMarker{ LastReadID: marker.LastReadID, UpdatedAt: util.FormatISO8601(marker.UpdatedAt), Version: marker.Version, } switch apimodel.MarkerName(marker.Name) { case apimodel.MarkerNameHome: apiMarker.Home = apiTimelineMarker case apimodel.MarkerNameNotifications: apiMarker.Notifications = apiTimelineMarker default: return nil, fmt.Errorf("unknown marker timeline name: %s", marker.Name) } } return apiMarker, nil } // PollToAPIPoll converts a database (gtsmodel) Poll into an API model representation appropriate for the given requesting account. func (c *Converter) PollToAPIPoll(ctx context.Context, requester *gtsmodel.Account, poll *gtsmodel.Poll) (*apimodel.Poll, error) { // Ensure the poll model is fully populated for src status. if err := c.state.DB.PopulatePoll(ctx, poll); err != nil { return nil, gtserror.Newf("error populating poll: %w", err) } var ( options []apimodel.PollOption totalVotes int totalVoters *int hasVoted *bool ownChoices *[]int isAuthor bool expiresAt *string emojis []apimodel.Emoji ) // Preallocate a slice of frontend model poll choices. options = make([]apimodel.PollOption, len(poll.Options)) // Add the titles to all of the options. for i, title := range poll.Options { options[i].Title = title } if requester != nil { // Get vote by requester in poll (if any). vote, err := c.state.DB.GetPollVoteBy(ctx, poll.ID, requester.ID, ) if err != nil && !errors.Is(err, db.ErrNoEntries) { return nil, gtserror.Newf("error getting vote for poll %s: %w", poll.ID, err) } if vote != nil { // Set choices by requester. ownChoices = &vote.Choices // Update default total in the // case that counts are hidden // (so we just show our own). totalVotes = len(vote.Choices) } else { // Requester hasn't yet voted, use // empty slice to serialize as `[]`. ownChoices = &[]int{} } // Check if requester is author of source status. isAuthor = (requester.ID == poll.Status.AccountID) // Set whether requester has voted in poll (or = author). hasVoted = util.Ptr((isAuthor || len(*ownChoices) > 0)) } if isAuthor || !*poll.HideCounts { // Only in the case that hide counts is // disabled, or the requester is the author // do we actually populate the vote counts. // If we voted in this poll, we'll have set totalVotes // earlier. Reset here to avoid double counting. totalVotes = 0 if *poll.Multiple { // The total number of voters are only // provided in the case of a multiple // choice poll. All else leaves it nil. totalVoters = poll.Voters } // Populate per-vote counts // and overall total vote count. for i, count := range poll.Votes { if options[i].VotesCount == nil { options[i].VotesCount = new(int) } (*options[i].VotesCount) += count totalVotes += count } } if !poll.ExpiresAt.IsZero() { // Calculate poll expiry string (if set). str := util.FormatISO8601(poll.ExpiresAt) expiresAt = &str } var err error // Try to inherit emojis from parent status. emojis, err = c.convertEmojisToAPIEmojis(ctx, poll.Status.Emojis, poll.Status.EmojiIDs, ) if err != nil { log.Errorf(ctx, "error converting emojis from parent status: %v", err) emojis = []apimodel.Emoji{} // fallback to empty slice. } return &apimodel.Poll{ ID: poll.ID, ExpiresAt: expiresAt, Expired: poll.Closed(), Multiple: (*poll.Multiple), VotesCount: totalVotes, VotersCount: totalVoters, Voted: hasVoted, OwnVotes: ownChoices, Options: options, Emojis: emojis, }, nil } // convertAttachmentsToAPIAttachments will convert a slice of GTS model attachments to frontend API model attachments, falling back to IDs if no GTS models supplied. func (c *Converter) convertAttachmentsToAPIAttachments(ctx context.Context, attachments []*gtsmodel.MediaAttachment, attachmentIDs []string) ([]*apimodel.Attachment, error) { var errs gtserror.MultiError if len(attachments) == 0 && len(attachmentIDs) > 0 { // GTS model attachments were not populated var err error // Fetch GTS models for attachment IDs attachments, err = c.state.DB.GetAttachmentsByIDs(ctx, attachmentIDs) if err != nil { errs.Appendf("error fetching attachments from database: %w", err) } } // Preallocate expected frontend slice apiAttachments := make([]*apimodel.Attachment, 0, len(attachments)) // Convert GTS models to frontend models for _, attachment := range attachments { apiAttachment, err := c.AttachmentToAPIAttachment(ctx, attachment) if err != nil { errs.Appendf("error converting attchment %s to api attachment: %w", attachment.ID, err) continue } apiAttachments = append(apiAttachments, &apiAttachment) } return apiAttachments, errs.Combine() } // FilterToAPIFiltersV1 converts one GTS model filter into an API v1 filter list func (c *Converter) FilterToAPIFiltersV1(ctx context.Context, filter *gtsmodel.Filter) ([]*apimodel.FilterV1, error) { apiFilters := make([]*apimodel.FilterV1, 0, len(filter.Keywords)) for _, filterKeyword := range filter.Keywords { apiFilter, err := c.FilterKeywordToAPIFilterV1(ctx, filterKeyword) if err != nil { return nil, err } apiFilters = append(apiFilters, apiFilter) } return apiFilters, nil } // FilterKeywordToAPIFilterV1 converts one GTS model filter and filter keyword into an API v1 filter func (c *Converter) FilterKeywordToAPIFilterV1(ctx context.Context, filterKeyword *gtsmodel.FilterKeyword) (*apimodel.FilterV1, error) { if filterKeyword.Filter == nil { return nil, gtserror.New("FilterKeyword model's Filter field isn't populated, but needs to be") } filter := filterKeyword.Filter return &apimodel.FilterV1{ // v1 filters have a single keyword each, so we use the filter keyword ID as the v1 filter ID. ID: filterKeyword.ID, Phrase: filterKeyword.Keyword, Context: filterToAPIFilterContexts(filter), WholeWord: util.PtrOrValue(filterKeyword.WholeWord, false), ExpiresAt: filterExpiresAtToAPIFilterExpiresAt(filter.ExpiresAt), Irreversible: filter.Action == gtsmodel.FilterActionHide, }, nil } // FilterToAPIFilterV2 converts one GTS model filter into an API v2 filter. func (c *Converter) FilterToAPIFilterV2(ctx context.Context, filter *gtsmodel.Filter) (*apimodel.FilterV2, error) { apiFilterKeywords := make([]apimodel.FilterKeyword, 0, len(filter.Keywords)) for _, filterKeyword := range filter.Keywords { apiFilterKeywords = append(apiFilterKeywords, *c.FilterKeywordToAPIFilterKeyword(ctx, filterKeyword)) } apiFilterStatuses := make([]apimodel.FilterStatus, 0, len(filter.Keywords)) for _, filterStatus := range filter.Statuses { apiFilterStatuses = append(apiFilterStatuses, *c.FilterStatusToAPIFilterStatus(ctx, filterStatus)) } return &apimodel.FilterV2{ ID: filter.ID, Title: filter.Title, Context: filterToAPIFilterContexts(filter), ExpiresAt: filterExpiresAtToAPIFilterExpiresAt(filter.ExpiresAt), FilterAction: filterActionToAPIFilterAction(filter.Action), Keywords: apiFilterKeywords, Statuses: apiFilterStatuses, }, nil } func filterExpiresAtToAPIFilterExpiresAt(expiresAt time.Time) *string { if expiresAt.IsZero() { return nil } return util.Ptr(util.FormatISO8601(expiresAt)) } func filterToAPIFilterContexts(filter *gtsmodel.Filter) []apimodel.FilterContext { apiContexts := make([]apimodel.FilterContext, 0, apimodel.FilterContextNumValues) if util.PtrOrValue(filter.ContextHome, false) { apiContexts = append(apiContexts, apimodel.FilterContextHome) } if util.PtrOrValue(filter.ContextNotifications, false) { apiContexts = append(apiContexts, apimodel.FilterContextNotifications) } if util.PtrOrValue(filter.ContextPublic, false) { apiContexts = append(apiContexts, apimodel.FilterContextPublic) } if util.PtrOrValue(filter.ContextThread, false) { apiContexts = append(apiContexts, apimodel.FilterContextThread) } if util.PtrOrValue(filter.ContextAccount, false) { apiContexts = append(apiContexts, apimodel.FilterContextAccount) } return apiContexts } func filterActionToAPIFilterAction(m gtsmodel.FilterAction) apimodel.FilterAction { switch m { case gtsmodel.FilterActionWarn: return apimodel.FilterActionWarn case gtsmodel.FilterActionHide: return apimodel.FilterActionHide } return apimodel.FilterActionNone } // FilterKeywordToAPIFilterKeyword converts a GTS model filter status into an API filter status. func (c *Converter) FilterKeywordToAPIFilterKeyword(ctx context.Context, filterKeyword *gtsmodel.FilterKeyword) *apimodel.FilterKeyword { return &apimodel.FilterKeyword{ ID: filterKeyword.ID, Keyword: filterKeyword.Keyword, WholeWord: util.PtrOrValue(filterKeyword.WholeWord, false), } } // FilterStatusToAPIFilterStatus converts a GTS model filter status into an API filter status. func (c *Converter) FilterStatusToAPIFilterStatus(ctx context.Context, filterStatus *gtsmodel.FilterStatus) *apimodel.FilterStatus { return &apimodel.FilterStatus{ ID: filterStatus.ID, StatusID: filterStatus.StatusID, } } // convertEmojisToAPIEmojis will convert a slice of GTS model emojis to frontend API model emojis, falling back to IDs if no GTS models supplied. func (c *Converter) convertEmojisToAPIEmojis(ctx context.Context, emojis []*gtsmodel.Emoji, emojiIDs []string) ([]apimodel.Emoji, error) { var errs gtserror.MultiError if len(emojis) == 0 && len(emojiIDs) > 0 { // GTS model attachments were not populated var err error // Fetch GTS models for emoji IDs emojis, err = c.state.DB.GetEmojisByIDs(ctx, emojiIDs) if err != nil { errs.Appendf("error fetching emojis from database: %w", err) } } // Preallocate expected frontend slice apiEmojis := make([]apimodel.Emoji, 0, len(emojis)) // Convert GTS models to frontend models for _, emoji := range emojis { apiEmoji, err := c.EmojiToAPIEmoji(ctx, emoji) if err != nil { errs.Appendf("error converting emoji %s to api emoji: %w", emoji.ID, err) continue } apiEmojis = append(apiEmojis, apiEmoji) } return apiEmojis, errs.Combine() } // convertMentionsToAPIMentions will convert a slice of GTS model mentions to frontend API model mentions, falling back to IDs if no GTS models supplied. func (c *Converter) convertMentionsToAPIMentions(ctx context.Context, mentions []*gtsmodel.Mention, mentionIDs []string) ([]apimodel.Mention, error) { var errs gtserror.MultiError if len(mentions) == 0 && len(mentionIDs) > 0 { var err error // GTS model mentions were not populated // // Fetch GTS models for mention IDs mentions, err = c.state.DB.GetMentions(ctx, mentionIDs) if err != nil { errs.Appendf("error fetching mentions from database: %w", err) } } // Preallocate expected frontend slice apiMentions := make([]apimodel.Mention, 0, len(mentions)) // Convert GTS models to frontend models for _, mention := range mentions { apiMention, err := c.MentionToAPIMention(ctx, mention) if err != nil { errs.Appendf("error converting mention %s to api mention: %w", mention.ID, err) continue } apiMentions = append(apiMentions, apiMention) } return apiMentions, errs.Combine() } // convertTagsToAPITags will convert a slice of GTS model tags to frontend API model tags, falling back to IDs if no GTS models supplied. func (c *Converter) convertTagsToAPITags(ctx context.Context, tags []*gtsmodel.Tag, tagIDs []string) ([]apimodel.Tag, error) { var errs gtserror.MultiError if len(tags) == 0 && len(tagIDs) > 0 { var err error tags, err = c.state.DB.GetTags(ctx, tagIDs) if err != nil { errs.Appendf("error fetching tags from database: %w", err) } } // Preallocate expected frontend slice apiTags := make([]apimodel.Tag, 0, len(tags)) // Convert GTS models to frontend models for _, tag := range tags { apiTag, err := c.TagToAPITag(ctx, tag, false) if err != nil { errs.Appendf("error converting tag %s to api tag: %w", tag.ID, err) continue } apiTags = append(apiTags, apiTag) } return apiTags, errs.Combine() } // ThemesToAPIThemes converts a slice of gtsmodel Themes into apimodel Themes. func (c *Converter) ThemesToAPIThemes(themes []*gtsmodel.Theme) []apimodel.Theme { apiThemes := make([]apimodel.Theme, len(themes)) for i, theme := range themes { apiThemes[i] = apimodel.Theme{ Title: theme.Title, Description: theme.Description, FileName: theme.FileName, } } return apiThemes } // Convert the given gtsmodel policy // into an apimodel interaction policy. // // Provided status can be nil to convert a // policy without a particular status in mind. // // RequestingAccount can also be nil for // unauthorized requests (web, public api etc). func (c *Converter) InteractionPolicyToAPIInteractionPolicy( ctx context.Context, policy *gtsmodel.InteractionPolicy, status *gtsmodel.Status, requester *gtsmodel.Account, ) (*apimodel.InteractionPolicy, error) { apiPolicy := &apimodel.InteractionPolicy{ CanFavourite: apimodel.PolicyRules{ Always: policyValsToAPIPolicyVals(policy.CanLike.Always), WithApproval: policyValsToAPIPolicyVals(policy.CanLike.WithApproval), }, CanReply: apimodel.PolicyRules{ Always: policyValsToAPIPolicyVals(policy.CanReply.Always), WithApproval: policyValsToAPIPolicyVals(policy.CanReply.WithApproval), }, CanReblog: apimodel.PolicyRules{ Always: policyValsToAPIPolicyVals(policy.CanAnnounce.Always), WithApproval: policyValsToAPIPolicyVals(policy.CanAnnounce.WithApproval), }, } if status == nil || requester == nil { // We're done here! return apiPolicy, nil } // Status and requester are both defined, // so we can add the "me" Value to the policy // for each interaction type, if applicable. likeable, err := c.intFilter.StatusLikeable(ctx, requester, status) if err != nil { err := gtserror.Newf("error checking status likeable by requester: %w", err) return nil, err } if likeable.Permission == gtsmodel.PolicyPermissionPermitted { // We can do this! apiPolicy.CanFavourite.Always = append( apiPolicy.CanFavourite.Always, apimodel.PolicyValueMe, ) } else if likeable.Permission == gtsmodel.PolicyPermissionWithApproval { // We can do this with approval. apiPolicy.CanFavourite.WithApproval = append( apiPolicy.CanFavourite.WithApproval, apimodel.PolicyValueMe, ) } replyable, err := c.intFilter.StatusReplyable(ctx, requester, status) if err != nil { err := gtserror.Newf("error checking status replyable by requester: %w", err) return nil, err } if replyable.Permission == gtsmodel.PolicyPermissionPermitted { // We can do this! apiPolicy.CanReply.Always = append( apiPolicy.CanReply.Always, apimodel.PolicyValueMe, ) } else if replyable.Permission == gtsmodel.PolicyPermissionWithApproval { // We can do this with approval. apiPolicy.CanReply.WithApproval = append( apiPolicy.CanReply.WithApproval, apimodel.PolicyValueMe, ) } boostable, err := c.intFilter.StatusBoostable(ctx, requester, status) if err != nil { err := gtserror.Newf("error checking status boostable by requester: %w", err) return nil, err } if boostable.Permission == gtsmodel.PolicyPermissionPermitted { // We can do this! apiPolicy.CanReblog.Always = append( apiPolicy.CanReblog.Always, apimodel.PolicyValueMe, ) } else if boostable.Permission == gtsmodel.PolicyPermissionWithApproval { // We can do this with approval. apiPolicy.CanReblog.WithApproval = append( apiPolicy.CanReblog.WithApproval, apimodel.PolicyValueMe, ) } return apiPolicy, nil } func policyValsToAPIPolicyVals(vals gtsmodel.PolicyValues) []apimodel.PolicyValue { var ( valsLen = len(vals) // Use a map to deduplicate added vals as we go. addedVals = make(map[apimodel.PolicyValue]struct{}, valsLen) // Vals we'll be returning. apiVals = make([]apimodel.PolicyValue, 0, valsLen) ) for _, policyVal := range vals { switch policyVal { case gtsmodel.PolicyValueAuthor: // Author can do this. newVal := apimodel.PolicyValueAuthor if _, added := addedVals[newVal]; !added { apiVals = append(apiVals, newVal) addedVals[newVal] = struct{}{} } case gtsmodel.PolicyValueMentioned: // Mentioned can do this. newVal := apimodel.PolicyValueMentioned if _, added := addedVals[newVal]; !added { apiVals = append(apiVals, newVal) addedVals[newVal] = struct{}{} } case gtsmodel.PolicyValueMutuals: // Mutuals can do this. newVal := apimodel.PolicyValueMutuals if _, added := addedVals[newVal]; !added { apiVals = append(apiVals, newVal) addedVals[newVal] = struct{}{} } case gtsmodel.PolicyValueFollowing: // Following can do this. newVal := apimodel.PolicyValueFollowing if _, added := addedVals[newVal]; !added { apiVals = append(apiVals, newVal) addedVals[newVal] = struct{}{} } case gtsmodel.PolicyValueFollowers: // Followers can do this. newVal := apimodel.PolicyValueFollowers if _, added := addedVals[newVal]; !added { apiVals = append(apiVals, newVal) addedVals[newVal] = struct{}{} } case gtsmodel.PolicyValuePublic: // Public can do this. newVal := apimodel.PolicyValuePublic if _, added := addedVals[newVal]; !added { apiVals = append(apiVals, newVal) addedVals[newVal] = struct{}{} } default: // Specific URI of ActivityPub Actor. newVal := apimodel.PolicyValue(policyVal) if _, added := addedVals[newVal]; !added { apiVals = append(apiVals, newVal) addedVals[newVal] = struct{}{} } } } return apiVals }