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convert.go
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convert.go
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package service
import (
"encoding/json"
"errors"
"fmt"
"strings"
"github.com/33cn/externaldb/db/transaction"
"github.com/33cn/chain33/common"
l "github.com/33cn/chain33/common/log/log15"
"github.com/33cn/externaldb/db"
"github.com/33cn/externaldb/db/proof/api"
"github.com/33cn/externaldb/db/proof/model"
"github.com/33cn/externaldb/db/proof/proofdb"
proofconfig "github.com/33cn/externaldb/db/proof_config"
"github.com/33cn/externaldb/util"
)
// vars
var (
log = l.New("module", "db.proof")
ErrNoPermission = errors.New("ErrNoPermission")
ErrDisableProof = errors.New("ErrDisableProof")
ErrParams = errors.New("ErrParams")
ErrDecode = errors.New("ErrDecode")
)
//ProofConvert
type ProofConvert struct {
Title string
OrgTitle string
Symbol string
Name string
proofDB proofdb.IProofDB
configDB proofconfig.ConfigDB
RecordGen proofdb.IProofRecord
}
// NewConvert 2注册插件需要的插件创建函数
func NewConvert(paraTitle, symbol string, name string) db.Convert {
return &ProofConvert{OrgTitle: paraTitle, Symbol: symbol, Name: name,
Title: db.CalcParaTitle(paraTitle)}
}
// SetDB SetDB
func (t *ProofConvert) SetDB(proofDB proofdb.IProofDB, cfgDB proofconfig.ConfigDB) error {
t.configDB = cfgDB
t.proofDB = proofDB
return nil
}
//ConvertTx payload中的proof数据,目前只支持格式[{k:v},{k:v},{k:v}...]格式的jsonstr
func (t *ProofConvert) ConvertTx(env *db.TxEnv, op int) ([]db.Record, error) {
log.Info("convertTX", "position", t.positionID(env))
var records []db.Record
var err error
tx := env.Block.Block.Txs[env.TxIndex]
actionName := "add_proof"
switch strings.TrimPrefix(string(tx.Execer), t.Title) {
case api.DeleteTx, api.MainDeleteTx:
actionName = "delete_proof"
delproof, delerr := t.DelProof(env, op)
err = delerr
if err == nil {
records = append(records, delproof...)
} else {
log.Error("convertTX:DelProof", "err", err)
}
case api.RecoverTx, api.MainRecoverTx:
actionName = "revocer_proof"
rproof, rerr := t.RecoverProof(env, op)
err = rerr
if err == nil {
records = append(records, rproof...)
} else {
log.Error("convertTX:RecoverProof", "err", err)
}
case api.TemplateTx, api.MainTemplateTx:
log.Debug("deal template tx", "execer", string(tx.Execer))
addtemplate, adderr := t.AddTemplate(env, op)
err = adderr
if err == nil {
log.Debug("add template tx record")
records = append(records, addtemplate...)
} else {
log.Error("convertTX:AddTemplate", "err", err)
}
case api.AddProof, api.MainAddProof:
log.Debug("deal add proof tx", "execer", string(tx.Execer))
addproof, adderr := t.AddProof(env, op)
err = adderr
if err == nil {
records = append(records, addproof...)
} else {
log.Error("convertTX:AddProof", "err", err)
}
default:
log.Error("tx.Execer not match", "tx.Execer", string(tx.Execer))
}
// r3 record tx
txr := transaction.ConvertTransaction(env)
txr.ActionName = actionName
txr.Success = true
if err != nil {
txr.Success = false
}
txRecord := transaction.TxRecord{
IKey: transaction.NewTransactionKey(txr.Hash),
Op: db.NewOp(op),
Tx: txr,
}
if op == db.SeqTypeDel {
txRecord.Op = db.NewOp(db.OpDel)
}
records = append(records, &txRecord)
return records, nil
}
// ProofID proof-hash
func ProofID(hash string) string {
return fmt.Sprintf("%s-%s", "proof", hash)
}
// TemplateID template-hash
func TemplateID(hash string) string {
return fmt.Sprintf("%s-%s", "template", hash)
}
// AddProof 增加存证: payload中的proof数据,目前只支持格式[{k:v},{k:v},{k:v}...]格式的jsonstr
func (t *ProofConvert) AddProof(env *db.TxEnv, op int) ([]db.Record, error) {
var records []db.Record
var proof model.Proof
defer func() {
if r := recover(); r != nil {
log.Error(" AddProof panic error", "err", r, "stack", util.GetStack())
}
}()
// 签名地址是否有权限,没有直接返回
height := env.Block.Block.Height
tx := env.Block.Block.Txs[env.TxIndex]
fromAddr := util.AddressConvert(tx.From())
if !t.configDB.IsHaveProofPermission(fromAddr) {
log.Error("AddProof:IsHaveProofPermission", "err", ErrNoPermission)
return nil, ErrNoPermission
}
org, err := t.configDB.GetOrganizationName(fromAddr)
if err != nil {
log.Error("AddProof:GetOrganizationName", "err", err)
return nil, err
}
mapinfo, err := parseProof(t.proofDB, t.Title, height, tx.Payload)
if err != nil {
log.Error("AddProof:parseProof", "err", err)
return nil, err
}
sourceHash := make([]string, 0)
if value, ok := mapinfo["source_hash"]; ok {
sourceHashInfo, ok1 := value.([]interface{})
if ok1 {
for _, v := range sourceHashInfo {
if hashVal, ok2 := v.(string); ok2 {
sourceHash = append(sourceHash, hashVal)
} else {
log.Error("AddProof source_hash has error value", "height", height, "tx", tx, "source_hash", value)
}
}
}
}
//填写展开后的信息
mapinfo["proof_sender"] = fromAddr
mapinfo["proof_organization"] = org
mapinfo["proof_tx_hash"] = common.ToHex(tx.Hash())
mapinfo["proof_height_index"] = db.HeightIndex(height, env.TxIndex)
mapinfo["proof_block_hash"] = env.BlockHash
mapinfo["proof_height"] = height
mapinfo["proof_block_time"] = env.Block.Block.BlockTime
mapinfo["proof_deleted"] = "" //此字段在后面删除此存证时填写删除此存证的交易hash值
mapinfo["proof_deleted_note"] = ""
mapinfo["proof_deleted_flag"] = false
mapinfo["proof_id"] = ProofID(common.ToHex(tx.Hash()))
if mapinfo["basehash"] == nil || mapinfo["basehash"] == "" {
mapinfo["basehash"] = "null"
}
mapinfo["source_hash"] = sourceHash
//处理更新存证
//若有新增存证,需先将存证记录做一份储存,再在原先存证记录上进行修改
if value, ok := mapinfo["update_hash"]; ok && mapinfo["update_hash"] != "null" && mapinfo["update_hash"] != "" {
updateHash := value.(string)
prevProof, err := t.proofDB.GetProof(ProofID(updateHash))
if err != nil {
log.Error("Get previous proof failed", "err", err)
return nil, err
}
mapinfo["basehash"] = prevProof.Proof["basehash"]
mapinfo["prehash"] = prevProof.Proof["prehash"]
if mapinfo["source_hash"] == nil {
mapinfo["source_hash"] = prevProof.Proof["source_hash"]
}
if v, ok := prevProof.Proof["update_version"]; ok {
updateVersion := int(v.(float64))
switch op {
case db.SeqTypeAdd:
mapinfo["update_version"] = updateVersion + 1
//备份update proof
prevProof.Proof["update_hash"] = updateHash
prevProof.Proof["proof_id"] = ProofID(prevProof.Proof["proof_tx_hash"].(string))
ProofUpdateRecord := t.RecordGen.ProofUpdateRecord(prevProof, prevProof.Proof["proof_id"].(string), db.OpAdd)
records = append(records, ProofUpdateRecord)
case db.SeqTypeDel:
//获取上一个版本的数据
data, err := t.dealRollback(mapinfo, updateVersion-1, updateHash)
if err != nil {
return nil, err
}
//在备份中将该版本删除
ProofUpdateRecord := t.RecordGen.ProofUpdateRecord(data, data.Proof["proof_id"].(string), db.OpDel)
records = append(records, ProofUpdateRecord)
}
} else {
//老版本,没有设置有关更新存证的字段
mapinfo["update_version"] = 1
//备份update proof
prevProof.Proof["update_hash"] = updateHash
prevProof.Proof["proof_id"] = ProofID(prevProof.Proof["proof_tx_hash"].(string))
ProofUpdateRecord := t.RecordGen.ProofUpdateRecord(prevProof, prevProof.Proof["proof_id"].(string), db.OpAdd)
records = append(records, ProofUpdateRecord)
}
//更新proof
mapinfo["update_hash"] = "null"
mapinfo["proof_id"] = ProofID(updateHash)
proof.Proof = mapinfo
m := t.RecordGen.Proof(&proof, proof.Proof["proof_id"].(string), db.OpUpdate)
records = append(records, m)
} else {
mapinfo["update_version"] = 0
mapinfo["update_hash"] = "null"
mapinfo["proof_id"] = ProofID(common.ToHex(tx.Hash()))
proof.Proof = mapinfo
ProofRecord := t.RecordGen.Proof(&proof, ProofID(common.ToHex(tx.Hash())), op)
records = append(records, ProofRecord)
}
if err := t.addUserInfo(fromAddr, mapinfo); err != nil {
log.Error("AddProof:addUserInfo", "err", err)
return nil, err
}
return records, nil
}
func (t *ProofConvert) dealRollback(mapinfo map[string]interface{}, updateVersion int, updateHash string) (*model.Proof, error) {
p, err := t.proofDB.GetProofUpdateRecord(ProofID(updateHash), updateVersion)
if err != nil {
log.Error("GetUpdateProof failed", "err", err)
return nil, err
}
mapinfo = nil
mapinfo = p.Proof
return p, nil
}
func (t *ProofConvert) addUserInfo(addr string, mapinfo map[string]interface{}) error {
mem, err := t.configDB.GetMember(addr)
if err != nil {
if err == db.ErrDBNotFound {
log.Info("sender info not find", "sender", addr)
return nil
}
return err
}
if mem.UserDetail != nil {
mapinfo["user_name"] = mem.UserName
mapinfo["user_icon"] = mem.UserIcon
mapinfo["user_phone"] = mem.Phone
mapinfo["user_email"] = mem.Email
mapinfo["user_auth_type"] = mem.AuthType
}
if mem.PersonalAuth != nil {
mapinfo["user_real_name"] = mem.RealName
}
if mem.EnterpriseAuth != nil {
mapinfo["user_enterprise_name"] = mem.EnterpriseName
}
return nil
}
// DelProof 删除存证
func (t *ProofConvert) DelProof(env *db.TxEnv, op int) ([]db.Record, error) {
tx := env.Block.Block.Txs[env.TxIndex]
from := util.AddressConvert(tx.From())
var d api.DeleteProof
err := json.Unmarshal(tx.Payload, &d)
if err != nil {
return nil, errors.New(proofconfig.ErrBadParams)
}
p, err := t.proofDB.GetProof(ProofID(d.ID))
if err != nil {
return nil, err
}
if !t.configDB.IsHaveDelProofPermission(from, p.Proof["proof_organization"].(string), p.Proof["proof_sender"].(string)) {
return nil, errors.New(proofconfig.ErrNoPrivilege)
}
if baseHash, ok := p.Proof["basehash"]; ok && baseHash.(string) != "null" {
return nil, errors.New(api.ErrNotBaseProof)
}
if deletedFlag, ok := p.Proof["proof_deleted_flag"]; ok && deletedFlag.(bool) {
return nil, errors.New(api.ErrProofDeleted)
}
proofs, err := t.proofDB.ListProof(d.ID)
if err != nil {
return nil, err
}
hash := common.ToHex(tx.Hash())
del := newDeleter(env, hash, &d)
records, err := del.del(p, proofs, op, t.RecordGen)
log.Info("convertTX delete", "proof", p.Proof)
return records, err
}
// RecoverProof 恢复存证
func (t *ProofConvert) RecoverProof(env *db.TxEnv, op int) ([]db.Record, error) {
tx := env.Block.Block.Txs[env.TxIndex]
from := util.AddressConvert(tx.From())
var d api.RecoverProof
err := json.Unmarshal(tx.Payload, &d)
if err != nil {
return nil, errors.New(proofconfig.ErrBadParams)
}
p, err := t.proofDB.GetProof(ProofID(d.ID))
if err != nil {
return nil, err
}
if !t.configDB.IsHaveDelProofPermission(from, p.Proof["proof_organization"].(string), p.Proof["proof_sender"].(string)) {
return nil, errors.New(proofconfig.ErrNoPrivilege)
}
if baseHash, ok := p.Proof["basehash"]; ok && baseHash.(string) != "null" {
return nil, errors.New(api.ErrNotBaseProof)
}
if deletedFlag, ok := p.Proof["proof_deleted_flag"]; ok && !deletedFlag.(bool) {
return nil, errors.New(api.ErrProofNotDeleted)
}
proofs, err := t.proofDB.ListProof(d.ID)
if err != nil {
return nil, err
}
hash := common.ToHex(tx.Hash())
rcv := newRecover(env, hash, &d)
records, err := rcv.recover(p, proofs, op, t.RecordGen)
log.Info("convertTX recover", "proof", p.Proof)
return records, err
}
func (t *ProofConvert) positionID(env *db.TxEnv) string {
return util.PositionID(t.Name, env.Block.Block.Height, env.TxIndex)
}
// AddTemplate 保存模板
func (t *ProofConvert) AddTemplate(env *db.TxEnv, op int) ([]db.Record, error) {
//错误拦截 panic异常错误
defer func() {
if r := recover(); r != nil {
log.Error(" AddTemplate panic error", "err", r)
}
}()
// 签名地址是否有权限,没有直接返回
height := env.Block.Block.Height
tx := env.Block.Block.Txs[env.TxIndex]
fromAddr := util.AddressConvert(tx.From())
//判断是否有权限
if !t.configDB.IsHaveProofPermission(fromAddr) {
log.Error("AddTemplate:IsHaveProofPermission", "err", ErrNoPermission)
return nil, ErrNoPermission
}
//判断组织名称
org, err := t.configDB.GetOrganizationName(fromAddr)
if err != nil {
log.Error("AddTemplate:GetOrganizationName", "err", err)
return nil, err
}
//解析模板
mapinfo, err := parseTemplate(t.Title, height, tx.Payload)
if err != nil {
log.Error("AddTemplate:parseProof", "err", err)
return nil, err
}
//填写展开后的信息
mapinfo["template_sender"] = fromAddr
mapinfo["template_organization"] = org
mapinfo["template_tx_hash"] = common.ToHex(tx.Hash())
mapinfo["template_height_index"] = db.HeightIndex(height, env.TxIndex)
mapinfo["template_block_hash"] = env.BlockHash
mapinfo["template_height"] = height
mapinfo["template_block_time"] = env.Block.Block.BlockTime
mapinfo["template_deleted"] = "" //此字段在后面删除此存证时填写删除此存证的交易hash值
mapinfo["template_deleted_note"] = ""
mapinfo["template_deleted_flag"] = false
mapinfo["template_id"] = TemplateID(common.ToHex(tx.Hash()))
log.Debug("AddTemplate mapinfo", "mapinfo", mapinfo)
var records []db.Record
var template model.Template
template.Template = mapinfo
ProofRecord := t.RecordGen.Template(&template, TemplateID(common.ToHex(tx.Hash())), op)
log.Debug("AddTemplate ProofRecord", "ProofRecord", ProofRecord)
records = append(records, ProofRecord)
return records, nil
}