mautrix-whatsapp/database/polloption.go

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// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
// Copyright (C) 2022 Tulir Asokan
//
// 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 <https://www.gnu.org/licenses/>.
package database
import (
"fmt"
"strings"
"github.com/lib/pq"
"go.mau.fi/util/dbutil"
)
func scanPollOptionMapping(rows dbutil.Rows) (id string, hashArr [32]byte, err error) {
var hash []byte
err = rows.Scan(&id, &hash)
if err != nil {
// return below
} else if len(hash) != 32 {
err = fmt.Errorf("unexpected hash length %d", len(hash))
} else {
hashArr = *(*[32]byte)(hash)
}
return
}
func (msg *Message) PutPollOptions(opts map[[32]byte]string) {
query := "INSERT INTO poll_option_id (msg_mxid, opt_id, opt_hash) VALUES ($1, $2, $3)"
args := make([]any, len(opts)*2+1)
placeholders := make([]string, len(opts))
args[0] = msg.MXID
i := 0
for hash, id := range opts {
args[i*2+1] = id
hashCopy := hash
args[i*2+2] = hashCopy[:]
placeholders[i] = fmt.Sprintf("($1, $%d, $%d)", i*2+2, i*2+3)
i++
}
query = strings.ReplaceAll(query, "($1, $2, $3)", strings.Join(placeholders, ","))
_, err := msg.db.Exec(query, args...)
if err != nil {
msg.log.Errorfln("Failed to save poll options for %s: %v", msg.MXID, err)
}
}
func (msg *Message) GetPollOptionIDs(hashes [][]byte) map[[32]byte]string {
query := "SELECT opt_id, opt_hash FROM poll_option_id WHERE msg_mxid=$1 AND opt_hash = ANY($2)"
var args []any
if msg.db.Dialect == dbutil.Postgres {
args = []any{msg.MXID, pq.Array(hashes)}
} else {
query = strings.ReplaceAll(query, " = ANY($2)", fmt.Sprintf(" IN (%s)", strings.TrimSuffix(strings.Repeat("?,", len(hashes)), ",")))
args = make([]any, len(hashes)+1)
args[0] = msg.MXID
for i, hash := range hashes {
args[i+1] = hash
}
}
ids := make(map[[32]byte]string, len(hashes))
rows, err := msg.db.Query(query, args...)
if err != nil {
msg.log.Errorfln("Failed to query poll option IDs for %s: %v", msg.MXID, err)
} else {
for rows.Next() {
id, hash, err := scanPollOptionMapping(rows)
if err != nil {
msg.log.Errorfln("Failed to scan poll option ID for %s: %v", msg.MXID, err)
break
}
ids[hash] = id
}
}
return ids
}
func (msg *Message) GetPollOptionHashes(ids []string) map[string][32]byte {
query := "SELECT opt_id, opt_hash FROM poll_option_id WHERE msg_mxid=$1 AND opt_id = ANY($2)"
var args []any
if msg.db.Dialect == dbutil.Postgres {
args = []any{msg.MXID, pq.Array(ids)}
} else {
query = strings.ReplaceAll(query, " = ANY($2)", fmt.Sprintf(" IN (%s)", strings.TrimSuffix(strings.Repeat("?,", len(ids)), ",")))
args = make([]any, len(ids)+1)
args[0] = msg.MXID
for i, id := range ids {
args[i+1] = id
}
}
hashes := make(map[string][32]byte, len(ids))
rows, err := msg.db.Query(query, args...)
if err != nil {
msg.log.Errorfln("Failed to query poll option hashes for %s: %v", msg.MXID, err)
} else {
for rows.Next() {
id, hash, err := scanPollOptionMapping(rows)
if err != nil {
msg.log.Errorfln("Failed to scan poll option hash for %s: %v", msg.MXID, err)
break
}
hashes[id] = hash
}
}
return hashes
}