mirror of
https://github.com/ergochat/ergo.git
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192 lines
5.8 KiB
Go
192 lines
5.8 KiB
Go
// Copyright (c) 2020 Shivaram Lingamneni <slingamn@cs.stanford.edu>
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// released under the MIT license
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package irc
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"log"
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"strconv"
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"github.com/tidwall/buntdb"
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"github.com/oragono/oragono/irc/utils"
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)
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type userImport struct {
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Name string
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Hash string
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Email string
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RegisteredAt int64 `json:"registeredAt"`
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Vhost string
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AdditionalNicks []string `json:"additionalNicks"`
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}
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type channelImport struct {
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Name string
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Founder string
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RegisteredAt int64 `json:"registeredAt"`
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Topic string
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TopicSetBy string `json:"topicSetBy"`
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TopicSetAt int64 `json:"topicSetAt"`
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Amode map[string]string
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Modes string
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Key string
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Limit int
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}
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type databaseImport struct {
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Version int
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Source string
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Users map[string]userImport
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Channels map[string]channelImport
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}
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func serializeAmodes(raw map[string]string) (result []byte, err error) {
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processed := make(map[string]int, len(raw))
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for accountName, mode := range raw {
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if len(mode) != 1 {
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return nil, fmt.Errorf("invalid mode %s for account %s", mode, accountName)
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}
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cfname, err := CasefoldName(accountName)
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if err != nil {
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return nil, fmt.Errorf("invalid amode recipient %s: %w", accountName, err)
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}
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processed[cfname] = int(mode[0])
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}
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result, err = json.Marshal(processed)
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return
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}
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func doImportDBGeneric(config *Config, dbImport databaseImport, credsType CredentialsVersion, tx *buntdb.Tx) (err error) {
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requiredVersion := 1
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if dbImport.Version != requiredVersion {
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return fmt.Errorf("unsupported version of the db for import: version %d is required", requiredVersion)
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}
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// produce a hardcoded version of the database schema
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// XXX instead of referencing, e.g., keyAccountExists, we should write in the string literal
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// (to ensure that no matter what code changes happen elsewhere, we're still producing a
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// version 14 db)
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tx.Set(keySchemaVersion, "14", nil)
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tx.Set(keyCloakSecret, utils.GenerateSecretKey(), nil)
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for username, userInfo := range dbImport.Users {
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cfUsername, err := CasefoldName(username)
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if err != nil {
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log.Printf("invalid username %s: %v", username, err)
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continue
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}
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credentials := AccountCredentials{
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Version: credsType,
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PassphraseHash: []byte(userInfo.Hash),
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}
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marshaledCredentials, err := json.Marshal(&credentials)
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if err != nil {
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log.Printf("invalid credentials for %s: %v", username, err)
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continue
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}
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tx.Set(fmt.Sprintf(keyAccountExists, cfUsername), "1", nil)
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tx.Set(fmt.Sprintf(keyAccountVerified, cfUsername), "1", nil)
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tx.Set(fmt.Sprintf(keyAccountName, cfUsername), userInfo.Name, nil)
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tx.Set(fmt.Sprintf(keyAccountCallback, cfUsername), "mailto:"+userInfo.Email, nil)
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tx.Set(fmt.Sprintf(keyAccountCredentials, cfUsername), string(marshaledCredentials), nil)
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tx.Set(fmt.Sprintf(keyAccountRegTime, cfUsername), strconv.FormatInt(userInfo.RegisteredAt, 10), nil)
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if userInfo.Vhost != "" {
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tx.Set(fmt.Sprintf(keyAccountVHost, cfUsername), userInfo.Vhost, nil)
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}
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if len(userInfo.AdditionalNicks) != 0 {
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tx.Set(fmt.Sprintf(keyAccountAdditionalNicks, cfUsername), marshalReservedNicks(userInfo.AdditionalNicks), nil)
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}
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}
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for chname, chInfo := range dbImport.Channels {
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cfchname, err := CasefoldChannel(chname)
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if err != nil {
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log.Printf("invalid channel name %s: %v", chname, err)
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continue
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}
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cffounder, err := CasefoldName(chInfo.Founder)
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if err != nil {
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log.Printf("invalid founder %s for channel %s: %v", chInfo.Founder, chname, err)
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continue
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}
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tx.Set(fmt.Sprintf(keyChannelExists, cfchname), "1", nil)
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tx.Set(fmt.Sprintf(keyChannelName, cfchname), chname, nil)
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tx.Set(fmt.Sprintf(keyChannelRegTime, cfchname), strconv.FormatInt(chInfo.RegisteredAt, 10), nil)
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tx.Set(fmt.Sprintf(keyChannelFounder, cfchname), cffounder, nil)
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accountChannelsKey := fmt.Sprintf(keyAccountChannels, cffounder)
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founderChannels, fcErr := tx.Get(accountChannelsKey)
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if fcErr != nil || founderChannels == "" {
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founderChannels = cfchname
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} else {
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founderChannels = fmt.Sprintf("%s,%s", founderChannels, cfchname)
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}
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tx.Set(accountChannelsKey, founderChannels, nil)
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if chInfo.Topic != "" {
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tx.Set(fmt.Sprintf(keyChannelTopic, cfchname), chInfo.Topic, nil)
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tx.Set(fmt.Sprintf(keyChannelTopicSetTime, cfchname), strconv.FormatInt(chInfo.TopicSetAt, 10), nil)
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tx.Set(fmt.Sprintf(keyChannelTopicSetBy, cfchname), chInfo.TopicSetBy, nil)
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}
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if len(chInfo.Amode) != 0 {
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m, err := serializeAmodes(chInfo.Amode)
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if err == nil {
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tx.Set(fmt.Sprintf(keyChannelAccountToUMode, cfchname), string(m), nil)
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} else {
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log.Printf("couldn't serialize amodes for %s: %v", chname, err)
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}
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}
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tx.Set(fmt.Sprintf(keyChannelModes, cfchname), chInfo.Modes, nil)
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if chInfo.Key != "" {
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tx.Set(fmt.Sprintf(keyChannelPassword, cfchname), chInfo.Key, nil)
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}
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if chInfo.Limit > 0 {
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tx.Set(fmt.Sprintf(keyChannelUserLimit, cfchname), strconv.Itoa(chInfo.Limit), nil)
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}
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}
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return nil
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}
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func doImportDB(config *Config, dbImport databaseImport, tx *buntdb.Tx) (err error) {
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switch dbImport.Source {
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case "atheme":
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return doImportDBGeneric(config, dbImport, CredentialsAtheme, tx)
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case "anope":
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return doImportDBGeneric(config, dbImport, CredentialsAnope, tx)
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default:
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return fmt.Errorf("unsupported import source: %s", dbImport.Source)
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}
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}
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func ImportDB(config *Config, infile string) (err error) {
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data, err := ioutil.ReadFile(infile)
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if err != nil {
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return
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}
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var dbImport databaseImport
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err = json.Unmarshal(data, &dbImport)
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if err != nil {
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return err
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}
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err = checkDBReadyForInit(config.Datastore.Path)
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if err != nil {
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return err
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}
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db, err := buntdb.Open(config.Datastore.Path)
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if err != nil {
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return err
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}
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performImport := func(tx *buntdb.Tx) (err error) {
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return doImportDB(config, dbImport, tx)
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}
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return db.Update(performImport)
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}
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