diff options
Diffstat (limited to 'internal/processing/account/block.go')
| -rw-r--r-- | internal/processing/account/block.go | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/internal/processing/account/block.go b/internal/processing/account/block.go new file mode 100644 index 000000000..99effd3a3 --- /dev/null +++ b/internal/processing/account/block.go @@ -0,0 +1,192 @@ +/* + GoToSocial + Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org + + 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 account + +import ( + "context" + "errors" + "fmt" + + "github.com/superseriousbusiness/gotosocial/internal/ap" + 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/messages" + "github.com/superseriousbusiness/gotosocial/internal/uris" +) + +// BlockCreate handles the creation of a block from requestingAccount to targetAccountID, either remote or local. +func (p *Processor) BlockCreate(ctx context.Context, requestingAccount *gtsmodel.Account, targetAccountID string) (*apimodel.Relationship, gtserror.WithCode) { + // make sure the target account actually exists in our db + targetAccount, err := p.db.GetAccountByID(ctx, targetAccountID) + if err != nil { + return nil, gtserror.NewErrorNotFound(fmt.Errorf("BlockCreate: error getting account %s from the db: %s", targetAccountID, err)) + } + + // if requestingAccount already blocks target account, we don't need to do anything + if blocked, err := p.db.IsBlocked(ctx, requestingAccount.ID, targetAccountID, false); err != nil { + return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockCreate: error checking existence of block: %s", err)) + } else if blocked { + return p.RelationshipGet(ctx, requestingAccount, targetAccountID) + } + + // don't block yourself, silly + if requestingAccount.ID == targetAccountID { + return nil, gtserror.NewErrorNotAcceptable(fmt.Errorf("BlockCreate: account %s cannot block itself", requestingAccount.ID)) + } + + // make the block + block := >smodel.Block{} + newBlockID := id.NewULID() + block.ID = newBlockID + block.AccountID = requestingAccount.ID + block.Account = requestingAccount + block.TargetAccountID = targetAccountID + block.TargetAccount = targetAccount + block.URI = uris.GenerateURIForBlock(requestingAccount.Username, newBlockID) + + // whack it in the database + if err := p.db.PutBlock(ctx, block); err != nil { + return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockCreate: error creating block in db: %s", err)) + } + + // clear any follows or follow requests from the blocked account to the target account -- this is a simple delete + if err := p.db.DeleteWhere(ctx, []db.Where{ + {Key: "account_id", Value: targetAccountID}, + {Key: "target_account_id", Value: requestingAccount.ID}, + }, >smodel.Follow{}); err != nil { + return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockCreate: error removing follow in db: %s", err)) + } + if err := p.db.DeleteWhere(ctx, []db.Where{ + {Key: "account_id", Value: targetAccountID}, + {Key: "target_account_id", Value: requestingAccount.ID}, + }, >smodel.FollowRequest{}); err != nil { + return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockCreate: error removing follow in db: %s", err)) + } + + // clear any follows or follow requests from the requesting account to the target account -- + // this might require federation so we need to pass some messages around + + // check if a follow request exists from the requesting account to the target account, and remove it if it does (storing the URI for later) + var frChanged bool + var frURI string + fr := >smodel.FollowRequest{} + if err := p.db.GetWhere(ctx, []db.Where{ + {Key: "account_id", Value: requestingAccount.ID}, + {Key: "target_account_id", Value: targetAccountID}, + }, fr); err == nil { + frURI = fr.URI + if err := p.db.DeleteByID(ctx, fr.ID, fr); err != nil { + return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockCreate: error removing follow request from db: %s", err)) + } + frChanged = true + } + + // now do the same thing for any existing follow + var fChanged bool + var fURI string + f := >smodel.Follow{} + if err := p.db.GetWhere(ctx, []db.Where{ + {Key: "account_id", Value: requestingAccount.ID}, + {Key: "target_account_id", Value: targetAccountID}, + }, f); err == nil { + fURI = f.URI + if err := p.db.DeleteByID(ctx, f.ID, f); err != nil { + return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockCreate: error removing follow from db: %s", err)) + } + fChanged = true + } + + // follow request status changed so send the UNDO activity to the channel for async processing + if frChanged { + p.clientWorker.Queue(messages.FromClientAPI{ + APObjectType: ap.ActivityFollow, + APActivityType: ap.ActivityUndo, + GTSModel: >smodel.Follow{ + AccountID: requestingAccount.ID, + TargetAccountID: targetAccountID, + URI: frURI, + }, + OriginAccount: requestingAccount, + TargetAccount: targetAccount, + }) + } + + // follow status changed so send the UNDO activity to the channel for async processing + if fChanged { + p.clientWorker.Queue(messages.FromClientAPI{ + APObjectType: ap.ActivityFollow, + APActivityType: ap.ActivityUndo, + GTSModel: >smodel.Follow{ + AccountID: requestingAccount.ID, + TargetAccountID: targetAccountID, + URI: fURI, + }, + OriginAccount: requestingAccount, + TargetAccount: targetAccount, + }) + } + + // handle the rest of the block process asynchronously + p.clientWorker.Queue(messages.FromClientAPI{ + APObjectType: ap.ActivityBlock, + APActivityType: ap.ActivityCreate, + GTSModel: block, + OriginAccount: requestingAccount, + TargetAccount: targetAccount, + }) + + return p.RelationshipGet(ctx, requestingAccount, targetAccountID) +} + +// BlockRemove handles the removal of a block from requestingAccount to targetAccountID, either remote or local. +func (p *Processor) BlockRemove(ctx context.Context, requestingAccount *gtsmodel.Account, targetAccountID string) (*apimodel.Relationship, gtserror.WithCode) { + // make sure the target account actually exists in our db + targetAccount, err := p.db.GetAccountByID(ctx, targetAccountID) + if err != nil { + return nil, gtserror.NewErrorNotFound(fmt.Errorf("BlockCreate: error getting account %s from the db: %s", targetAccountID, err)) + } + + // check if a block exists, and remove it if it does + block, err := p.db.GetBlock(ctx, requestingAccount.ID, targetAccountID) + if err == nil { + // we got a block, remove it + block.Account = requestingAccount + block.TargetAccount = targetAccount + if err := p.db.DeleteBlockByID(ctx, block.ID); err != nil { + return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockRemove: error removing block from db: %s", err)) + } + + // send the UNDO activity to the client worker for async processing + p.clientWorker.Queue(messages.FromClientAPI{ + APObjectType: ap.ActivityBlock, + APActivityType: ap.ActivityUndo, + GTSModel: block, + OriginAccount: requestingAccount, + TargetAccount: targetAccount, + }) + } else if !errors.Is(err, db.ErrNoEntries) { + return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockRemove: error getting possible block from db: %s", err)) + } + + // return whatever relationship results from all this + return p.RelationshipGet(ctx, requestingAccount, targetAccountID) +} |