1 files changed, 108 insertions, 1 deletions

diff --git a/models/migrations/migrations.go b/models/migrations/migrations.go
index 3586e5d0b6..f0ed10b7aa 100644
--- a/models/migrations/migrations.go
+++ b/models/migrations/migrations.go
@@ -2,6 +2,9 @@ package migrations
 
 import (
 	"errors"
+	"strconv"
+	"strings"
+	"time"
 
 	"github.com/go-xorm/xorm"
 )
@@ -16,7 +19,9 @@ type Version struct {
 
 // This is a sequence of migrations. Add new migrations to the bottom of the list.
 // If you want to "retire" a migration, replace it with "expiredMigration"
-var migrations = []migration{}
+var migrations = []migration{
+	accessToCollaboration,
+}
 
 // Migrate database to current version
 func Migrate(x *xorm.Engine) error {
@@ -29,6 +34,21 @@ func Migrate(x *xorm.Engine) error {
 	if err != nil {
 		return err
 	} else if !has {
+		needsMigration, err := x.IsTableExist("user")
+		if err != nil {
+			return err
+		}
+		if needsMigration {
+			isEmpty, err := x.IsTableEmpty("user")
+			if err != nil {
+				return err
+			}
+			needsMigration = !isEmpty
+		}
+		if !needsMigration {
+			currentVersion.Version = int64(len(migrations))
+		}
+
 		if _, err = x.InsertOne(currentVersion); err != nil {
 			return err
 		}
@@ -51,3 +71,90 @@ func Migrate(x *xorm.Engine) error {
 func expiredMigration(x *xorm.Engine) error {
 	return errors.New("You are migrating from a too old gogs version")
 }
+
+func mustParseInt64(in []byte) int64 {
+	i, err := strconv.ParseInt(string(in), 10, 64)
+	if err != nil {
+		i = 0
+	}
+	return i
+}
+
+func accessToCollaboration(x *xorm.Engine) error {
+	type Collaboration struct {
+		ID      int64     `xorm:"pk autoincr"`
+		RepoID  int64     `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		UserID  int64     `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		Created time.Time `xorm:"CREATED"`
+	}
+
+	x.Sync(new(Collaboration))
+
+	sql := `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`
+	results, err := x.Query(sql)
+	if err != nil {
+		return err
+	}
+
+	for _, result := range results {
+		userID := mustParseInt64(result["uid"])
+		repoRefName := string(result["repo"])
+		mode := mustParseInt64(result["mode"])
+		created := result["created"]
+
+		//Collaborators must have write access
+		if mode < 2 {
+			continue
+		}
+
+		// find owner of repository
+		parts := strings.SplitN(repoRefName, "/", 2)
+		ownerName := parts[0]
+		repoName := parts[1]
+
+		sql = `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=?`
+		results, err := x.Query(sql, ownerName)
+		if err != nil {
+			return err
+		}
+		if len(results) < 1 {
+			continue
+		}
+
+		ownerID := mustParseInt64(results[0]["uid"])
+		if ownerID == userID {
+			continue
+		}
+
+		// test if user is member of owning organization
+		isMember := false
+		for _, member := range results {
+			memberID := mustParseInt64(member["memberid"])
+			// We can skip all cases that a user is member of the owning organization
+			if memberID == userID {
+				isMember = true
+			}
+		}
+		if isMember {
+			continue
+		}
+
+		sql = `SELECT id FROM repository WHERE owner_id=? AND lower_name=?`
+		results, err = x.Query(sql, ownerID, repoName)
+		if err != nil {
+			return err
+		}
+		if len(results) < 1 {
+			continue
+		}
+
+		repoID := results[0]["id"]
+
+		sql = `INSERT INTO collaboration (user_id, repo_id, created) VALUES (?,?,?)`
+		_, err = x.Exec(sql, userID, repoID, created)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}