[feature] Add partial text search for accounts + statuses (#1836)

1 files changed, 138 insertions, 0 deletions

diff --git a/internal/processing/search/util.go b/internal/processing/search/util.go
new file mode 100644
index 000000000..4172e4e1a
--- /dev/null
+++ b/internal/processing/search/util.go
@@ -0,0 +1,138 @@
+// 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 search
+
+import (
+	"context"
+
+	apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
+	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/log"
+)
+
+// return true if given queryType should include accounts.
+func includeAccounts(queryType string) bool {
+	return queryType == queryTypeAny || queryType == queryTypeAccounts
+}
+
+// return true if given queryType should include statuses.
+func includeStatuses(queryType string) bool {
+	return queryType == queryTypeAny || queryType == queryTypeStatuses
+}
+
+// packageAccounts is a util function that just
+// converts the given accounts into an apimodel
+// account slice, or errors appropriately.
+func (p *Processor) packageAccounts(
+	ctx context.Context,
+	requestingAccount *gtsmodel.Account,
+	accounts []*gtsmodel.Account,
+) ([]*apimodel.Account, gtserror.WithCode) {
+	apiAccounts := make([]*apimodel.Account, 0, len(accounts))
+
+	for _, account := range accounts {
+		if account.IsInstance() {
+			// No need to show instance accounts.
+			continue
+		}
+
+		// Ensure requester can see result account.
+		visible, err := p.filter.AccountVisible(ctx, requestingAccount, account)
+		if err != nil {
+			err = gtserror.Newf("error checking visibility of account %s for account %s: %w", account.ID, requestingAccount.ID, err)
+			return nil, gtserror.NewErrorInternalError(err)
+		}
+
+		if !visible {
+			log.Debugf(ctx, "account %s is not visible to account %s, skipping this result", account.ID, requestingAccount.ID)
+			continue
+		}
+
+		apiAccount, err := p.tc.AccountToAPIAccountPublic(ctx, account)
+		if err != nil {
+			log.Debugf(ctx, "skipping account %s because it couldn't be converted to its api representation: %s", account.ID, err)
+			continue
+		}
+
+		apiAccounts = append(apiAccounts, apiAccount)
+	}
+
+	return apiAccounts, nil
+}
+
+// packageStatuses is a util function that just
+// converts the given statuses into an apimodel
+// status slice, or errors appropriately.
+func (p *Processor) packageStatuses(
+	ctx context.Context,
+	requestingAccount *gtsmodel.Account,
+	statuses []*gtsmodel.Status,
+) ([]*apimodel.Status, gtserror.WithCode) {
+	apiStatuses := make([]*apimodel.Status, 0, len(statuses))
+
+	for _, status := range statuses {
+		// Ensure requester can see result status.
+		visible, err := p.filter.StatusVisible(ctx, requestingAccount, status)
+		if err != nil {
+			err = gtserror.Newf("error checking visibility of status %s for account %s: %w", status.ID, requestingAccount.ID, err)
+			return nil, gtserror.NewErrorInternalError(err)
+		}
+
+		if !visible {
+			log.Debugf(ctx, "status %s is not visible to account %s, skipping this result", status.ID, requestingAccount.ID)
+			continue
+		}
+
+		apiStatus, err := p.tc.StatusToAPIStatus(ctx, status, requestingAccount)
+		if err != nil {
+			log.Debugf(ctx, "skipping status %s because it couldn't be converted to its api representation: %s", status.ID, err)
+			continue
+		}
+
+		apiStatuses = append(apiStatuses, apiStatus)
+	}
+
+	return apiStatuses, nil
+}
+
+// packageSearchResult wraps up the given accounts
+// and statuses into an apimodel SearchResult that
+// can be serialized to an API caller as JSON.
+func (p *Processor) packageSearchResult(
+	ctx context.Context,
+	requestingAccount *gtsmodel.Account,
+	accounts []*gtsmodel.Account,
+	statuses []*gtsmodel.Status,
+) (*apimodel.SearchResult, gtserror.WithCode) {
+	apiAccounts, errWithCode := p.packageAccounts(ctx, requestingAccount, accounts)
+	if errWithCode != nil {
+		return nil, errWithCode
+	}
+
+	apiStatuses, errWithCode := p.packageStatuses(ctx, requestingAccount, statuses)
+	if errWithCode != nil {
+		return nil, errWithCode
+	}
+
+	return &apimodel.SearchResult{
+		Accounts: apiAccounts,
+		Statuses: apiStatuses,
+		Hashtags: make([]*apimodel.Tag, 0),
+	}, nil
+}