gotosocial/internal/processing/admin/emoji.go

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// 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 <http://www.gnu.org/licenses/>.
package admin
import (
"context"
"errors"
"fmt"
"io"
"mime/multipart"
"strings"
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
"github.com/superseriousbusiness/gotosocial/internal/media"
"github.com/superseriousbusiness/gotosocial/internal/uris"
"github.com/superseriousbusiness/gotosocial/internal/util"
)
// EmojiCreate creates a custom emoji on this instance.
func (p *Processor) EmojiCreate(
ctx context.Context,
account *gtsmodel.Account,
form *apimodel.EmojiCreateRequest,
) (*apimodel.Emoji, gtserror.WithCode) {
// Ensure emoji with this shortcode
// doesn't already exist on the instance.
maybeExisting, err := p.state.DB.GetEmojiByShortcodeDomain(ctx, form.Shortcode, "")
if err != nil && !errors.Is(err, db.ErrNoEntries) {
err := gtserror.Newf("error checking existence of emoji with shortcode %s: %w", form.Shortcode, err)
return nil, gtserror.NewErrorInternalError(err)
}
if maybeExisting != nil {
err := fmt.Errorf("emoji with shortcode %s already exists", form.Shortcode)
return nil, gtserror.NewErrorConflict(err, err.Error())
}
// Prepare data function for emoji processing
// (just read data from the submitted form).
data := func(innerCtx context.Context) (io.ReadCloser, int64, error) {
f, err := form.Image.Open()
return f, form.Image.Size, err
}
// If category was supplied on the form,
// ensure the category exists and provide
// it as additional info to emoji processing.
var ai *media.AdditionalEmojiInfo
if form.CategoryName != "" {
category, err := p.getOrCreateEmojiCategory(ctx, form.CategoryName)
if err != nil {
return nil, gtserror.NewErrorInternalError(err)
}
ai = &media.AdditionalEmojiInfo{
CategoryID: &category.ID,
}
}
// Generate new emoji ID and URI.
emojiID, err := id.NewRandomULID()
if err != nil {
err := gtserror.Newf("error creating id for new emoji: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
emojiURI := uris.URIForEmoji(emojiID)
// Begin media processing.
processingEmoji, err := p.mediaManager.PreProcessEmoji(ctx,
data, form.Shortcode, emojiID, emojiURI, ai, false,
)
if err != nil {
err := gtserror.Newf("error processing emoji: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
// Complete processing immediately.
emoji, err := processingEmoji.LoadEmoji(ctx)
if err != nil {
err := gtserror.Newf("error loading emoji: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
apiEmoji, err := p.converter.EmojiToAPIEmoji(ctx, emoji)
if err != nil {
err := gtserror.Newf("error converting emoji: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
return &apiEmoji, nil
}
// emojisGetFilterParams builds extra
// query parameters to return as part
// of an Emojis pageable response.
//
// The returned string will look like:
//
// "filter=domain:all,enabled,shortcode:example"
func emojisGetFilterParams(
shortcode string,
domain string,
includeDisabled bool,
includeEnabled bool,
) string {
var filterBuilder strings.Builder
filterBuilder.WriteString("filter=")
switch domain {
case "", "local":
// Local emojis only.
filterBuilder.WriteString("domain:local")
case db.EmojiAllDomains:
// Local or remote.
filterBuilder.WriteString("domain:all")
default:
// Specific domain only.
filterBuilder.WriteString("domain:" + domain)
}
if includeDisabled != includeEnabled {
if includeDisabled {
filterBuilder.WriteString(",disabled")
}
if includeEnabled {
filterBuilder.WriteString(",enabled")
}
}
if shortcode != "" {
// Specific shortcode only.
filterBuilder.WriteString(",shortcode:" + shortcode)
}
return filterBuilder.String()
}
// EmojisGet returns an admin view of custom
// emojis, filtered with the given parameters.
func (p *Processor) EmojisGet(
ctx context.Context,
account *gtsmodel.Account,
domain string,
includeDisabled bool,
includeEnabled bool,
shortcode string,
maxShortcodeDomain string,
minShortcodeDomain string,
limit int,
) (*apimodel.PageableResponse, gtserror.WithCode) {
emojis, err := p.state.DB.GetEmojisBy(ctx,
domain,
includeDisabled,
includeEnabled,
shortcode,
maxShortcodeDomain,
minShortcodeDomain,
limit,
)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
err := gtserror.Newf("db error: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
count := len(emojis)
if count == 0 {
return util.EmptyPageableResponse(), nil
}
items := make([]interface{}, 0, count)
for _, emoji := range emojis {
adminEmoji, err := p.converter.EmojiToAdminAPIEmoji(ctx, emoji)
if err != nil {
err := gtserror.Newf("error converting emoji to admin model emoji: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
items = append(items, adminEmoji)
}
return util.PackagePageableResponse(util.PageableResponseParams{
Items: items,
Path: "api/v1/admin/custom_emojis",
NextMaxIDKey: "max_shortcode_domain",
NextMaxIDValue: util.ShortcodeDomain(emojis[count-1]),
PrevMinIDKey: "min_shortcode_domain",
PrevMinIDValue: util.ShortcodeDomain(emojis[0]),
Limit: limit,
ExtraQueryParams: []string{
emojisGetFilterParams(
shortcode,
domain,
includeDisabled,
includeEnabled,
),
},
})
}
// EmojiGet returns the admin view of
// one custom emoji with the given id.
func (p *Processor) EmojiGet(
ctx context.Context,
account *gtsmodel.Account,
id string,
) (*apimodel.AdminEmoji, gtserror.WithCode) {
emoji, err := p.state.DB.GetEmojiByID(ctx, id)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
err := gtserror.Newf("db error: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
if emoji == nil {
err := gtserror.Newf("no emoji with id %s found in the db", id)
return nil, gtserror.NewErrorNotFound(err)
}
adminEmoji, err := p.converter.EmojiToAdminAPIEmoji(ctx, emoji)
if err != nil {
err := gtserror.Newf("error converting emoji to admin api emoji: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
return adminEmoji, nil
}
// EmojiDelete deletes one *local* emoji
// from the database, with the given id.
func (p *Processor) EmojiDelete(
ctx context.Context,
id string,
) (*apimodel.AdminEmoji, gtserror.WithCode) {
emoji, err := p.state.DB.GetEmojiByID(ctx, id)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
err := gtserror.Newf("db error: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
if emoji == nil {
err := gtserror.Newf("no emoji with id %s found in the db", id)
return nil, gtserror.NewErrorNotFound(err)
}
if !emoji.IsLocal() {
err := fmt.Errorf("emoji with id %s was not a local emoji, will not delete", id)
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
// Convert to admin emoji before deletion,
// so we can return the deleted emoji.
adminEmoji, err := p.converter.EmojiToAdminAPIEmoji(ctx, emoji)
if err != nil {
err := gtserror.Newf("error converting emoji to admin api emoji: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
if err := p.state.DB.DeleteEmojiByID(ctx, id); err != nil {
err := gtserror.Newf("db error deleting emoji %s: %w", id, err)
return nil, gtserror.NewErrorInternalError(err)
}
return adminEmoji, nil
}
// EmojiUpdate updates one emoji with the
// given id, using the provided form parameters.
func (p *Processor) EmojiUpdate(
ctx context.Context,
id string,
form *apimodel.EmojiUpdateRequest,
) (*apimodel.AdminEmoji, gtserror.WithCode) {
emoji, err := p.state.DB.GetEmojiByID(ctx, id)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
err := gtserror.Newf("db error: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
if emoji == nil {
err := gtserror.Newf("no emoji with id %s found in the db", id)
return nil, gtserror.NewErrorNotFound(err)
}
switch t := form.Type; t {
case apimodel.EmojiUpdateCopy:
return p.emojiUpdateCopy(ctx, emoji, form.Shortcode, form.CategoryName)
case apimodel.EmojiUpdateDisable:
return p.emojiUpdateDisable(ctx, emoji)
case apimodel.EmojiUpdateModify:
return p.emojiUpdateModify(ctx, emoji, form.Image, form.CategoryName)
default:
err := fmt.Errorf("unrecognized emoji action type %s", t)
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
}
// EmojiCategoriesGet returns all custom emoji
// categories that exist on this instance.
func (p *Processor) EmojiCategoriesGet(
ctx context.Context,
) ([]*apimodel.EmojiCategory, gtserror.WithCode) {
categories, err := p.state.DB.GetEmojiCategories(ctx)
if err != nil {
err := gtserror.Newf("db error getting emoji categories: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
apiCategories := make([]*apimodel.EmojiCategory, 0, len(categories))
for _, category := range categories {
apiCategory, err := p.converter.EmojiCategoryToAPIEmojiCategory(ctx, category)
if err != nil {
err := gtserror.Newf("error converting emoji category to api emoji category: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
apiCategories = append(apiCategories, apiCategory)
}
return apiCategories, nil
}
/*
UTIL FUNCTIONS
*/
// getOrCreateEmojiCategory either gets an existing
// category with the given name from the database,
// or, if the category doesn't yet exist, it creates
// the category and then returns it.
func (p *Processor) getOrCreateEmojiCategory(
ctx context.Context,
name string,
) (*gtsmodel.EmojiCategory, error) {
category, err := p.state.DB.GetEmojiCategoryByName(ctx, name)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
return nil, gtserror.Newf(
"database error trying get emoji category %s: %w",
name, err,
)
}
if category != nil {
// We had it already.
return category, nil
}
// We don't have the category yet,
// create it with the given name.
categoryID, err := id.NewRandomULID()
if err != nil {
return nil, gtserror.Newf(
"error generating id for new emoji category %s: %w",
name, err,
)
}
category = &gtsmodel.EmojiCategory{
ID: categoryID,
Name: name,
}
if err := p.state.DB.PutEmojiCategory(ctx, category); err != nil {
return nil, gtserror.Newf(
"db error putting new emoji category %s: %w",
name, err,
)
}
return category, nil
}
// emojiUpdateCopy copies and stores the given
// *remote* emoji as a *local* emoji, preserving
// the same image, and using the provided shortcode.
//
// The provided emoji model must correspond to an
// emoji already stored in the database + storage.
func (p *Processor) emojiUpdateCopy(
ctx context.Context,
targetEmoji *gtsmodel.Emoji,
shortcode *string,
category *string,
) (*apimodel.AdminEmoji, gtserror.WithCode) {
if targetEmoji.IsLocal() {
err := fmt.Errorf("emoji %s is not a remote emoji, cannot copy it to local", targetEmoji.ID)
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
if shortcode == nil {
err := errors.New("no shortcode provided")
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
sc := *shortcode
if sc == "" {
err := errors.New("empty shortcode provided")
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
// Ensure we don't already have an emoji
// stored locally with this shortcode.
maybeExisting, err := p.state.DB.GetEmojiByShortcodeDomain(ctx, sc, "")
if err != nil && !errors.Is(err, db.ErrNoEntries) {
err := gtserror.Newf("db error checking for emoji with shortcode %s: %w", sc, err)
return nil, gtserror.NewErrorInternalError(err)
}
if maybeExisting != nil {
err := fmt.Errorf("emoji with shortcode %s already exists on this instance", sc)
return nil, gtserror.NewErrorConflict(err, err.Error())
}
// We don't have an emoji with this
// shortcode yet! Prepare to create it.
// Data function for copying just streams media
// out of storage into an additional location.
//
// This means that data for the copy persists even
// if the remote copied emoji gets deleted at some point.
data := func(ctx context.Context) (io.ReadCloser, int64, error) {
rc, err := p.state.Storage.GetStream(ctx, targetEmoji.ImagePath)
return rc, int64(targetEmoji.ImageFileSize), err
}
// Generate new emoji ID and URI.
emojiID, err := id.NewRandomULID()
if err != nil {
err := gtserror.Newf("error creating id for new emoji: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
emojiURI := uris.URIForEmoji(emojiID)
// If category was supplied, ensure the
// category exists and provide it as
// additional info to emoji processing.
var ai *media.AdditionalEmojiInfo
if category != nil && *category != "" {
category, err := p.getOrCreateEmojiCategory(ctx, *category)
if err != nil {
return nil, gtserror.NewErrorInternalError(err)
}
ai = &media.AdditionalEmojiInfo{
CategoryID: &category.ID,
}
}
// Begin media processing.
processingEmoji, err := p.mediaManager.PreProcessEmoji(ctx,
data, sc, emojiID, emojiURI, ai, false,
)
if err != nil {
err := gtserror.Newf("error processing emoji: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
// Complete processing immediately.
newEmoji, err := processingEmoji.LoadEmoji(ctx)
if err != nil {
err := gtserror.Newf("error loading emoji: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
adminEmoji, err := p.converter.EmojiToAdminAPIEmoji(ctx, newEmoji)
if err != nil {
err := gtserror.Newf("error converting emoji %s to admin emoji: %w", newEmoji.ID, err)
return nil, gtserror.NewErrorInternalError(err)
}
return adminEmoji, nil
}
// emojiUpdateDisable marks the given *remote*
// emoji as disabled by setting disabled = true.
//
// The provided emoji model must correspond to an
// emoji already stored in the database + storage.
func (p *Processor) emojiUpdateDisable(
ctx context.Context,
emoji *gtsmodel.Emoji,
) (*apimodel.AdminEmoji, gtserror.WithCode) {
if emoji.IsLocal() {
err := fmt.Errorf("emoji %s is not a remote emoji, cannot disable it via this endpoint", emoji.ID)
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
// Only bother with a db call
// if emoji not already disabled.
if !*emoji.Disabled {
emoji.Disabled = util.Ptr(true)
if err := p.state.DB.UpdateEmoji(ctx, emoji, "disabled"); err != nil {
err := gtserror.Newf("db error updating emoji %s: %w", emoji.ID, err)
return nil, gtserror.NewErrorInternalError(err)
}
}
adminEmoji, err := p.converter.EmojiToAdminAPIEmoji(ctx, emoji)
if err != nil {
err := gtserror.Newf("error converting emoji %s to admin emoji: %w", emoji.ID, err)
return nil, gtserror.NewErrorInternalError(err)
}
return adminEmoji, nil
}
// emojiUpdateModify modifies the given *local* emoji.
//
// Either one of image or category must be non-nil,
// otherwise there's nothing to modify. If category
// is non-nil and dereferences to an empty string,
// category will be cleared.
//
// The provided emoji model must correspond to an
// emoji already stored in the database + storage.
func (p *Processor) emojiUpdateModify(
ctx context.Context,
emoji *gtsmodel.Emoji,
image *multipart.FileHeader,
category *string,
) (*apimodel.AdminEmoji, gtserror.WithCode) {
if !emoji.IsLocal() {
err := fmt.Errorf("emoji %s is not a local emoji, cannot update it via this endpoint", emoji.ID)
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
// Ensure there's actually something to update.
if image == nil && category == nil {
err := errors.New("neither new category nor new image set, cannot update")
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
// Only update category
// if it's changed.
var (
newCategory *gtsmodel.EmojiCategory
newCategoryID string
updateCategoryID bool
)
if category != nil {
catName := *category
if catName != "" {
// Set new category.
var err error
newCategory, err = p.getOrCreateEmojiCategory(ctx, catName)
if err != nil {
err := gtserror.Newf("error getting or creating category: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
newCategoryID = newCategory.ID
} else {
// Clear existing category.
newCategoryID = ""
}
updateCategoryID = emoji.CategoryID != newCategoryID
}
// Only update image
// if one is provided.
var updateImage bool
if image != nil && image.Size != 0 {
updateImage = true
}
if updateCategoryID && !updateImage {
// Only updating category; we only
// need to do a db update for this.
emoji.CategoryID = newCategoryID
emoji.Category = newCategory
if err := p.state.DB.UpdateEmoji(ctx, emoji, "category_id"); err != nil {
err := gtserror.Newf("db error updating emoji %s: %w", emoji.ID, err)
return nil, gtserror.NewErrorInternalError(err)
}
} else if updateImage {
// Updating image and maybe categoryID.
// We can do both at the same time :)
// Set data function to provided image.
data := func(ctx context.Context) (io.ReadCloser, int64, error) {
i, err := image.Open()
return i, image.Size, err
}
// If necessary, include
// update to categoryID too.
var ai *media.AdditionalEmojiInfo
if updateCategoryID {
ai = &media.AdditionalEmojiInfo{
CategoryID: &newCategoryID,
}
}
// Begin media processing.
processingEmoji, err := p.mediaManager.PreProcessEmoji(ctx,
data, emoji.Shortcode, emoji.ID, emoji.URI, ai, false,
)
if err != nil {
err := gtserror.Newf("error processing emoji: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
// Replace emoji ptr with newly-processed version.
emoji, err = processingEmoji.LoadEmoji(ctx)
if err != nil {
err := gtserror.Newf("error loading emoji: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
}
adminEmoji, err := p.converter.EmojiToAdminAPIEmoji(ctx, emoji)
if err != nil {
err := gtserror.Newf("error converting emoji %s to admin emoji: %w", emoji.ID, err)
return nil, gtserror.NewErrorInternalError(err)
}
return adminEmoji, nil
}