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319 lines
8.2 KiB
319 lines
8.2 KiB
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package migrations
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import (
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"fmt"
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"strings"
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"time"
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"github.com/Unknwon/com"
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"github.com/go-xorm/xorm"
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"github.com/gogits/gogs/modules/log"
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"github.com/gogits/gogs/modules/setting"
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)
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const _MIN_DB_VER = 0
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type Migration interface {
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Description() string
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Migrate(*xorm.Engine) error
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}
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type migration struct {
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description string
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migrate func(*xorm.Engine) error
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}
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func NewMigration(desc string, fn func(*xorm.Engine) error) Migration {
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return &migration{desc, fn}
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}
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func (m *migration) Description() string {
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return m.description
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}
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func (m *migration) Migrate(x *xorm.Engine) error {
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return m.migrate(x)
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}
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// The version table. Should have only one row with id==1
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type Version struct {
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Id int64
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Version int64
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}
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// This is a sequence of migrations. Add new migrations to the bottom of the list.
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// If you want to "retire" a migration, remove it from the top of the list and
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// update _MIN_VER_DB accordingly
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var migrations = []Migration{
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NewMigration("generate collaboration from access", accessToCollaboration), // V0 -> V1
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NewMigration("make authorize 4 if team is owners", ownerTeamUpdate), // V1 -> V2
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NewMigration("refactor access table to use id's", accessRefactor), // V2 -> V3
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}
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// Migrate database to current version
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func Migrate(x *xorm.Engine) error {
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if err := x.Sync(new(Version)); err != nil {
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return fmt.Errorf("sync: %v", err)
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}
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currentVersion := &Version{Id: 1}
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has, err := x.Get(currentVersion)
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if err != nil {
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return fmt.Errorf("get: %v", err)
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} else if !has {
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// If the user table does not exist it is a fresh installation and we
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// can skip all migrations.
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needsMigration, err := x.IsTableExist("user")
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if err != nil {
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return err
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}
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if needsMigration {
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isEmpty, err := x.IsTableEmpty("user")
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if err != nil {
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return err
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}
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// If the user table is empty it is a fresh installation and we can
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// skip all migrations.
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needsMigration = !isEmpty
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}
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if !needsMigration {
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currentVersion.Version = int64(_MIN_DB_VER + len(migrations))
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}
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if _, err = x.InsertOne(currentVersion); err != nil {
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return fmt.Errorf("insert: %v", err)
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}
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}
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v := currentVersion.Version
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for i, m := range migrations[v-_MIN_DB_VER:] {
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log.Info("Migration: %s", m.Description())
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if err = m.Migrate(x); err != nil {
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return fmt.Errorf("do migrate: %v", err)
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}
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currentVersion.Version = v + int64(i) + 1
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if _, err = x.Id(1).Update(currentVersion); err != nil {
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return err
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}
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}
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return nil
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}
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func sessionRelease(sess *xorm.Session) {
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if !sess.IsCommitedOrRollbacked {
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sess.Rollback()
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}
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sess.Close()
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}
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func accessToCollaboration(x *xorm.Engine) (err error) {
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type Collaboration struct {
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ID int64 `xorm:"pk autoincr"`
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RepoID int64 `xorm:"UNIQUE(s) INDEX NOT NULL"`
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UserID int64 `xorm:"UNIQUE(s) INDEX NOT NULL"`
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Created time.Time
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}
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if err = x.Sync(new(Collaboration)); err != nil {
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return fmt.Errorf("sync: %v", err)
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}
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results, err := x.Query("SELECT u.id AS `uid`, a.repo_name AS `repo`, a.mode AS `mode`, a.created as `created` FROM `access` a JOIN `user` u ON a.user_name=u.lower_name")
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if err != nil {
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return err
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}
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sess := x.NewSession()
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defer sessionRelease(sess)
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if err = sess.Begin(); err != nil {
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return err
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}
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offset := strings.Split(time.Now().String(), " ")[2]
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for _, result := range results {
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mode := com.StrTo(result["mode"]).MustInt64()
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// Collaborators must have write access.
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if mode < 2 {
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continue
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}
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userID := com.StrTo(result["uid"]).MustInt64()
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repoRefName := string(result["repo"])
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var created time.Time
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switch {
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case setting.UseSQLite3:
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created, _ = time.Parse(time.RFC3339, string(result["created"]))
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case setting.UseMySQL:
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created, _ = time.Parse("2006-01-02 15:04:05-0700", string(result["created"])+offset)
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case setting.UsePostgreSQL:
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created, _ = time.Parse("2006-01-02T15:04:05Z-0700", string(result["created"])+offset)
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}
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// find owner of repository
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parts := strings.SplitN(repoRefName, "/", 2)
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ownerName := parts[0]
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repoName := parts[1]
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results, err := sess.Query("SELECT u.id as `uid`, ou.uid as `memberid` FROM `user` u LEFT JOIN org_user ou ON ou.org_id=u.id WHERE u.lower_name=?", ownerName)
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if err != nil {
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return err
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}
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if len(results) < 1 {
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continue
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}
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ownerID := com.StrTo(results[0]["uid"]).MustInt64()
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if ownerID == userID {
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continue
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}
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// test if user is member of owning organization
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isMember := false
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for _, member := range results {
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memberID := com.StrTo(member["memberid"]).MustInt64()
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// We can skip all cases that a user is member of the owning organization
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if memberID == userID {
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isMember = true
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}
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}
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if isMember {
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continue
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}
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results, err = sess.Query("SELECT id FROM `repository` WHERE owner_id=? AND lower_name=?", ownerID, repoName)
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if err != nil {
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return err
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} else if len(results) < 1 {
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continue
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}
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collaboration := &Collaboration{
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UserID: userID,
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RepoID: com.StrTo(results[0]["id"]).MustInt64(),
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}
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has, err := sess.Get(collaboration)
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if err != nil {
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return err
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} else if has {
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continue
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}
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collaboration.Created = created
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if _, err = sess.InsertOne(collaboration); err != nil {
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return err
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}
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}
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return sess.Commit()
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}
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func ownerTeamUpdate(x *xorm.Engine) (err error) {
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if _, err := x.Exec("UPDATE team SET authorize=4 WHERE lower_name=?", "owners"); err != nil {
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return fmt.Errorf("drop table: %v", err)
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}
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return nil
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}
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func accessRefactor(x *xorm.Engine) (err error) {
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type (
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AccessMode int
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Access struct {
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ID int64 `xorm:"pk autoincr"`
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UserID int64 `xorm:"UNIQUE(s)"`
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RepoID int64 `xorm:"UNIQUE(s)"`
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Mode AccessMode
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}
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UserRepo struct {
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UserID int64
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RepoID int64
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}
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)
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// We consiously don't start a session yet as we make only reads for now, no writes
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accessMap := make(map[UserRepo]AccessMode, 50)
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results, err := x.Query("SELECT r.id as `repo_id`, r.is_private as `is_private`, r.owner_id as `owner_id`, u.type as `owner_type` FROM `repository` r LEFT JOIN user u ON r.owner_id=u.id")
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if err != nil {
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return err
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}
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for _, repo := range results {
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repoID := com.StrTo(repo["repo_id"]).MustInt64()
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isPrivate := com.StrTo(repo["is_private"]).MustInt() > 0
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ownerID := com.StrTo(repo["owner_id"]).MustInt64()
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ownerIsOrganization := com.StrTo(repo["owner_type"]).MustInt() > 0
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results, err := x.Query("SELECT user_id FROM collaboration WHERE repo_id=?", repoID)
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if err != nil {
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return fmt.Errorf("select repos: %v", err)
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}
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for _, user := range results {
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userID := com.StrTo(user["user_id"]).MustInt64()
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accessMap[UserRepo{userID, repoID}] = 2 // WRITE ACCESS
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}
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if !ownerIsOrganization {
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continue
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}
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minAccessLevel := AccessMode(0)
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if !isPrivate {
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minAccessLevel = 1
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}
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repoString := "$" + string(repo["repo_id"]) + "|"
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results, err = x.Query("SELECT id, authorize, repo_ids FROM team WHERE org_id=? AND authorize > ? ORDER BY authorize ASC", ownerID, int(minAccessLevel))
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if err != nil {
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return fmt.Errorf("select teams from org: %v", err)
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}
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for _, team := range results {
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if !strings.Contains(string(team["repo_ids"]), repoString) {
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continue
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}
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teamID := com.StrTo(team["id"]).MustInt64()
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mode := AccessMode(com.StrTo(team["authorize"]).MustInt())
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results, err := x.Query("SELECT uid FROM team_user WHERE team_id=?", teamID)
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if err != nil {
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return fmt.Errorf("select users from team: %v", err)
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}
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for _, user := range results {
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userID := com.StrTo(user["uid"]).MustInt64()
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accessMap[UserRepo{userID, repoID}] = mode
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}
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}
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}
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// Drop table can't be in a session (at least not in sqlite)
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if _, err = x.Exec("DROP TABLE access"); err != nil {
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return fmt.Errorf("drop table: %v", err)
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}
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// Now we start writing so we make a session
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sess := x.NewSession()
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defer sessionRelease(sess)
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if err = sess.Begin(); err != nil {
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return err
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}
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if err = sess.Sync2(new(Access)); err != nil {
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return fmt.Errorf("sync: %v", err)
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}
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accesses := make([]*Access, 0, len(accessMap))
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for ur, mode := range accessMap {
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accesses = append(accesses, &Access{UserID: ur.UserID, RepoID: ur.RepoID, Mode: mode})
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}
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_, err = sess.Insert(accesses)
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return sess.Commit()
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}
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