GoToSocial/internal/processing/instance.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 processing
import (
"context"
"fmt"
"sort"
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/text"
"github.com/superseriousbusiness/gotosocial/internal/util"
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"github.com/superseriousbusiness/gotosocial/internal/validate"
)
func (p *Processor) InstanceGetV1(ctx context.Context) (*apimodel.InstanceV1, gtserror.WithCode) {
i, err := p.getThisInstance(ctx)
if err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("db error fetching instance: %s", err))
}
ai, err := p.converter.InstanceToAPIV1Instance(ctx, i)
if err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("error converting instance to api representation: %s", err))
}
return ai, nil
}
func (p *Processor) InstanceGetV2(ctx context.Context) (*apimodel.InstanceV2, gtserror.WithCode) {
i, err := p.getThisInstance(ctx)
if err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("db error fetching instance: %s", err))
}
ai, err := p.converter.InstanceToAPIV2Instance(ctx, i)
if err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("error converting instance to api representation: %s", err))
}
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return ai, nil
}
func (p *Processor) InstancePeersGet(ctx context.Context, includeSuspended bool, includeOpen bool, flat bool) (interface{}, gtserror.WithCode) {
domains := []*apimodel.Domain{}
if includeOpen {
instances, err := p.state.DB.GetInstancePeers(ctx, false)
if err != nil && err != db.ErrNoEntries {
err = fmt.Errorf("error selecting instance peers: %s", err)
return nil, gtserror.NewErrorInternalError(err)
}
for _, i := range instances {
// Domain may be in Punycode,
// de-punify it just in case.
d, err := util.DePunify(i.Domain)
if err != nil {
log.Errorf(ctx, "couldn't depunify domain %s: %s", i.Domain, err)
continue
}
domains = append(domains, &apimodel.Domain{Domain: d})
}
}
if includeSuspended {
domainBlocks := []*gtsmodel.DomainBlock{}
if err := p.state.DB.GetAll(ctx, &domainBlocks); err != nil && err != db.ErrNoEntries {
return nil, gtserror.NewErrorInternalError(err)
}
for _, domainBlock := range domainBlocks {
// Domain may be in Punycode,
// de-punify it just in case.
d, err := util.DePunify(domainBlock.Domain)
if err != nil {
log.Errorf(ctx, "couldn't depunify domain %s: %s", domainBlock.Domain, err)
continue
}
if *domainBlock.Obfuscate {
// Obfuscate the de-punified version.
d = obfuscate(d)
}
domains = append(domains, &apimodel.Domain{
Domain: d,
SuspendedAt: util.FormatISO8601(domainBlock.CreatedAt),
PublicComment: domainBlock.PublicComment,
})
}
}
sort.Slice(domains, func(i, j int) bool {
return domains[i].Domain < domains[j].Domain
})
if flat {
flattened := []string{}
for _, d := range domains {
flattened = append(flattened, d.Domain)
}
return flattened, nil
}
return domains, nil
}
func (p *Processor) InstanceGetRules(ctx context.Context) ([]apimodel.InstanceRule, gtserror.WithCode) {
i, err := p.getThisInstance(ctx)
if err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("db error fetching instance: %s", err))
}
return p.converter.InstanceRulesToAPIRules(i.Rules), nil
}
func (p *Processor) InstancePatch(ctx context.Context, form *apimodel.InstanceSettingsUpdateRequest) (*apimodel.InstanceV1, gtserror.WithCode) {
// Fetch this instance from the db for processing.
instance, err := p.getThisInstance(ctx)
if err != nil {
err = fmt.Errorf("db error fetching instance: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
// Fetch this instance account from the db for processing.
instanceAcc, err := p.state.DB.GetInstanceAccount(ctx, "")
if err != nil {
err = fmt.Errorf("db error fetching instance account: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
// Columns to update
// in the database.
var columns []string
// Validate & update site
// title if set on the form.
if form.Title != nil {
title := *form.Title
if err := validate.SiteTitle(title); err != nil {
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
// Don't allow html in site title.
instance.Title = text.SanitizeToPlaintext(title)
columns = append(columns, "title")
}
// Validate & update site contact
// account if set on the form.
//
// Empty username unsets contact.
if form.ContactUsername != nil {
contactAccountID, err := p.contactAccountIDForUsername(ctx, *form.ContactUsername)
if err != nil {
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
columns = append(columns, "contact_account_id")
instance.ContactAccountID = contactAccountID
}
// Validate & update contact
// email if set on the form.
//
// Empty email unsets contact.
if form.ContactEmail != nil {
contactEmail := *form.ContactEmail
if contactEmail != "" {
if err := validate.Email(contactEmail); err != nil {
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
}
columns = append(columns, "contact_email")
instance.ContactEmail = contactEmail
}
// Validate & update site short
// description if set on the form.
if form.ShortDescription != nil {
shortDescription := *form.ShortDescription
if err := validate.SiteShortDescription(shortDescription); err != nil {
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
// Parse description as Markdown, keep
// the raw version for later editing.
instance.ShortDescriptionText = shortDescription
instance.ShortDescription = p.formatter.FromMarkdown(ctx, p.parseMentionFunc, instanceAcc.ID, "", shortDescription).HTML
columns = append(columns, []string{"short_description", "short_description_text"}...)
}
// validate & update site description if it's set on the form
if form.Description != nil {
description := *form.Description
if err := validate.SiteDescription(description); err != nil {
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
// Parse description as Markdown, keep
// the raw version for later editing.
instance.DescriptionText = description
instance.Description = p.formatter.FromMarkdown(ctx, p.parseMentionFunc, instanceAcc.ID, "", description).HTML
columns = append(columns, []string{"description", "description_text"}...)
}
// Validate & update site
// terms if set on the form.
if form.Terms != nil {
terms := *form.Terms
if err := validate.SiteTerms(terms); err != nil {
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
// Parse terms as Markdown, keep
// the raw version for later editing.
instance.TermsText = terms
instance.Terms = p.formatter.FromMarkdown(ctx, p.parseMentionFunc, "", "", terms).HTML
columns = append(columns, []string{"terms", "terms_text"}...)
}
var updateInstanceAccount bool
if form.Avatar != nil && form.Avatar.Size != 0 {
// Process instance avatar image + description.
avatarInfo, err := p.account.UpdateAvatar(ctx, form.Avatar, form.AvatarDescription, instanceAcc.ID)
if err != nil {
return nil, gtserror.NewErrorBadRequest(err, "error processing avatar")
}
instanceAcc.AvatarMediaAttachmentID = avatarInfo.ID
instanceAcc.AvatarMediaAttachment = avatarInfo
updateInstanceAccount = true
} else if form.AvatarDescription != nil && instanceAcc.AvatarMediaAttachment != nil {
// Process just the description for the existing avatar.
instanceAcc.AvatarMediaAttachment.Description = *form.AvatarDescription
if err := p.state.DB.UpdateAttachment(ctx, instanceAcc.AvatarMediaAttachment, "description"); err != nil {
err = fmt.Errorf("db error updating instance avatar description: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
}
if form.Header != nil && form.Header.Size != 0 {
// process instance header image
headerInfo, err := p.account.UpdateHeader(ctx, form.Header, nil, instanceAcc.ID)
if err != nil {
return nil, gtserror.NewErrorBadRequest(err, "error processing header")
}
instanceAcc.HeaderMediaAttachmentID = headerInfo.ID
instanceAcc.HeaderMediaAttachment = headerInfo
updateInstanceAccount = true
}
if updateInstanceAccount {
// If either avatar or header is updated, we need
// to update the instance account that stores them.
if err := p.state.DB.UpdateAccount(ctx, instanceAcc); err != nil {
err = fmt.Errorf("db error updating instance account: %w", err)
return nil, gtserror.NewErrorInternalError(err, err.Error())
}
}
if len(columns) != 0 {
if err := p.state.DB.UpdateInstance(ctx, instance, columns...); err != nil {
err = fmt.Errorf("db error updating instance: %w", err)
return nil, gtserror.NewErrorInternalError(err, err.Error())
}
}
return p.InstanceGetV1(ctx)
}
func (p *Processor) getThisInstance(ctx context.Context) (*gtsmodel.Instance, error) {
instance, err := p.state.DB.GetInstance(ctx, config.GetHost())
if err != nil {
return nil, err
}
return instance, nil
}
func (p *Processor) contactAccountIDForUsername(ctx context.Context, username string) (string, error) {
if username == "" {
// Easy: unset
// contact account.
return "", nil
}
// Make sure local account with the given username exists in the db.
contactAccount, err := p.state.DB.GetAccountByUsernameDomain(ctx, username, "")
if err != nil {
err = fmt.Errorf("db error getting selected contact account with username %s: %w", username, err)
return "", err
}
// Make sure account corresponds to a user.
contactUser, err := p.state.DB.GetUserByAccountID(ctx, contactAccount.ID)
if err != nil {
err = fmt.Errorf("db error getting user for selected contact account %s: %w", username, err)
return "", err
}
// Ensure account/user is:
//
// - confirmed and approved
// - not suspended
// - an admin or a moderator
if contactUser.ConfirmedAt.IsZero() {
err := fmt.Errorf("user of selected contact account %s is not confirmed", contactAccount.Username)
return "", err
}
if !*contactUser.Approved {
err := fmt.Errorf("user of selected contact account %s is not approved", contactAccount.Username)
return "", err
}
if !contactAccount.SuspendedAt.IsZero() {
err := fmt.Errorf("selected contact account %s is suspended", contactAccount.Username)
return "", err
}
if !*contactUser.Admin && !*contactUser.Moderator {
err := fmt.Errorf("user of selected contact account %s is neither admin nor moderator", contactAccount.Username)
return "", err
}
// All good!
return contactAccount.ID, nil
}
func obfuscate(domain string) string {
obfuscated := make([]rune, len(domain))
for i, r := range domain {
if i%3 == 1 || i%5 == 1 {
obfuscated[i] = '*'
} else {
obfuscated[i] = r
}
}
return string(obfuscated)
}