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Fix random string generator (#384)

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* Remove unused custom-alphabet feature of random string generator

Fix random string generator

Random string generator should return error if it fails to read random data via crypto/rand

* Fixes variable (un)initialization mixed assign
Update test GetRandomString
This commit is contained in:
Denis Denisov 2016-12-20 14:32:02 +02:00 committed by Thomas Boerger
parent 952587dbae
commit 380e32e129
11 changed files with 94 additions and 35 deletions
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8
models/migrations/migrations.go
View file

@ -457,8 +457,12 @@ func generateOrgRandsAndSalt(x *xorm.Engine) (err error) {
}
for _, org := range orgs {
org.Rands = base.GetRandomString(10)
org.Salt = base.GetRandomString(10)
if org.Rands, err = base.GetRandomString(10); err != nil {
return err
}
if org.Salt, err = base.GetRandomString(10); err != nil {
return err
}
if _, err = sess.Id(org.ID).Update(org); err != nil {
return err
}

8
models/org.go
View file

@ -109,8 +109,12 @@ func CreateOrganization(org, owner *User) (err error) {
}
org.LowerName = strings.ToLower(org.Name)
org.Rands = GetUserSalt()
org.Salt = GetUserSalt()
if org.Rands, err = GetUserSalt(); err != nil {
return err
}
if org.Salt, err = GetUserSalt(); err != nil {
return err
}
org.UseCustomAvatar = true
org.MaxRepoCreation = -1
org.NumTeams = 1

10
models/user.go
View file

@ -532,7 +532,7 @@ func IsUserExist(uid int64, name string) (bool, error) {
}
// GetUserSalt returns a ramdom user salt token.
func GetUserSalt() string {
func GetUserSalt() (string, error) {
return base.GetRandomString(10)
}
@ -604,8 +604,12 @@ func CreateUser(u *User) (err error) {
u.LowerName = strings.ToLower(u.Name)
u.AvatarEmail = u.Email
u.Avatar = base.HashEmail(u.AvatarEmail)
u.Rands = GetUserSalt()
u.Salt = GetUserSalt()
if u.Rands, err = GetUserSalt(); err != nil {
return err
}
if u.Salt, err = GetUserSalt(); err != nil {
return err
}
u.EncodePasswd()
u.MaxRepoCreation = -1

4
models/user_mail.go
View file

@ -122,7 +122,9 @@ func (email *EmailAddress) Activate() error {
if err != nil {
return err
}
user.Rands = GetUserSalt()
if user.Rands, err = GetUserSalt(); err != nil {
return err
}
sess := x.NewSession()
defer sessionRelease(sess)

32
modules/base/tool.go
View file

@ -13,6 +13,7 @@ import (
"fmt"
"html/template"
"math"
"math/big"
"net/http"
"strconv"
"strings"
@ -81,18 +82,31 @@ func BasicAuthEncode(username, password string) string {
}
// GetRandomString generate random string by specify chars.
func GetRandomString(n int, alphabets ...byte) string {
func GetRandomString(n int) (string, error) {
const alphanum = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
var bytes = make([]byte, n)
rand.Read(bytes)
for i, b := range bytes {
if len(alphabets) == 0 {
bytes[i] = alphanum[b%byte(len(alphanum))]
} else {
bytes[i] = alphabets[b%byte(len(alphabets))]
buffer := make([]byte, n)
max := big.NewInt(int64(len(alphanum)))
for i := 0; i < n; i++ {
index, err := randomInt(max)
if err != nil {
return "", err
}
buffer[i] = alphanum[index]
}
return string(bytes)
return string(buffer), nil
}
func randomInt(max *big.Int) (int, error) {
rand, err := rand.Int(rand.Reader, max)
if err != nil {
return 0, err
}
return int(rand.Int64()), nil
}
// VerifyTimeLimitCode verify time limit code

4
modules/base/tool_test.go
View file

@ -43,7 +43,9 @@ func TestBasicAuthEncode(t *testing.T) {
}
func TestGetRandomString(t *testing.T) {
assert.Len(t, GetRandomString(4), 4)
randomString, err := GetRandomString(4)
assert.NoError(t, err)
assert.Len(t, randomString, 4)
}
// TODO: Test PBKDF2()

6
routers/admin/users.go
View file

@ -197,7 +197,11 @@ func EditUserPost(ctx *context.Context, form auth.AdminEditUserForm) {
if len(form.Password) > 0 {
u.Passwd = form.Password
u.Salt = models.GetUserSalt()
var err error
if u.Salt, err = models.GetUserSalt(); err != nil {
ctx.Handle(500, "UpdateUser", err)
return
}
u.EncodePasswd()
}

6
routers/api/v1/admin/user.go
View file

@ -87,7 +87,11 @@ func EditUser(ctx *context.APIContext, form api.EditUserOption) {
if len(form.Password) > 0 {
u.Passwd = form.Password
u.Salt = models.GetUserSalt()
var err error
if u.Salt, err = models.GetUserSalt(); err != nil {
ctx.Error(500, "UpdateUser", err)
return
}
u.EncodePasswd()
}

28
routers/install.go
View file

@ -115,6 +115,7 @@ func Install(ctx *context.Context) {
// InstallPost response for submit install items
func InstallPost(ctx *context.Context, form auth.InstallForm) {
var err error
ctx.Data["CurDbOption"] = form.DbType
if ctx.HasError() {
@ -131,7 +132,7 @@ func InstallPost(ctx *context.Context, form auth.InstallForm) {
return
}
if _, err := exec.LookPath("git"); err != nil {
if _, err = exec.LookPath("git"); err != nil {
ctx.RenderWithErr(ctx.Tr("install.test_git_failed", err), tplInstall, &form)
return
}
@ -161,7 +162,7 @@ func InstallPost(ctx *context.Context, form auth.InstallForm) {
// Set test engine.
var x *xorm.Engine
if err := models.NewTestEngine(x); err != nil {
if err = models.NewTestEngine(x); err != nil {
if strings.Contains(err.Error(), `Unknown database type: sqlite3`) {
ctx.Data["Err_DbType"] = true
ctx.RenderWithErr(ctx.Tr("install.sqlite3_not_available", "https://docs.gitea.io/installation/install_from_binary.html"), tplInstall, &form)
@ -174,7 +175,7 @@ func InstallPost(ctx *context.Context, form auth.InstallForm) {
// Test repository root path.
form.RepoRootPath = strings.Replace(form.RepoRootPath, "\\", "/", -1)
if err := os.MkdirAll(form.RepoRootPath, os.ModePerm); err != nil {
if err = os.MkdirAll(form.RepoRootPath, os.ModePerm); err != nil {
ctx.Data["Err_RepoRootPath"] = true
ctx.RenderWithErr(ctx.Tr("install.invalid_repo_path", err), tplInstall, &form)
return
@ -182,7 +183,7 @@ func InstallPost(ctx *context.Context, form auth.InstallForm) {
// Test log root path.
form.LogRootPath = strings.Replace(form.LogRootPath, "\\", "/", -1)
if err := os.MkdirAll(form.LogRootPath, os.ModePerm); err != nil {
if err = os.MkdirAll(form.LogRootPath, os.ModePerm); err != nil {
ctx.Data["Err_LogRootPath"] = true
ctx.RenderWithErr(ctx.Tr("install.invalid_log_root_path", err), tplInstall, &form)
return
@ -225,7 +226,7 @@ func InstallPost(ctx *context.Context, form auth.InstallForm) {
cfg := ini.Empty()
if com.IsFile(setting.CustomConf) {
// Keeps custom settings if there is already something.
if err := cfg.Append(setting.CustomConf); err != nil {
if err = cfg.Append(setting.CustomConf); err != nil {
log.Error(4, "Fail to load custom conf '%s': %v", setting.CustomConf, err)
}
}
@ -279,15 +280,20 @@ func InstallPost(ctx *context.Context, form auth.InstallForm) {
cfg.Section("log").Key("ROOT_PATH").SetValue(form.LogRootPath)
cfg.Section("security").Key("INSTALL_LOCK").SetValue("true")
cfg.Section("security").Key("SECRET_KEY").SetValue(base.GetRandomString(15))
var secretKey string
if secretKey, err = base.GetRandomString(10); err != nil {
ctx.RenderWithErr(ctx.Tr("install.secret_key_failed", err), tplInstall, &form)
return
}
cfg.Section("security").Key("SECRET_KEY").SetValue(secretKey)
err := os.MkdirAll(filepath.Dir(setting.CustomConf), os.ModePerm)
err = os.MkdirAll(filepath.Dir(setting.CustomConf), os.ModePerm)
if err != nil {
ctx.RenderWithErr(ctx.Tr("install.save_config_failed", err), tplInstall, &form)
return
}
if err := cfg.SaveTo(setting.CustomConf); err != nil {
if err = cfg.SaveTo(setting.CustomConf); err != nil {
ctx.RenderWithErr(ctx.Tr("install.save_config_failed", err), tplInstall, &form)
return
}
@ -303,7 +309,7 @@ func InstallPost(ctx *context.Context, form auth.InstallForm) {
IsAdmin: true,
IsActive: true,
}
if err := models.CreateUser(u); err != nil {
if err = models.CreateUser(u); err != nil {
if !models.IsErrUserAlreadyExist(err) {
setting.InstallLock = false
ctx.Data["Err_AdminName"] = true
@ -316,11 +322,11 @@ func InstallPost(ctx *context.Context, form auth.InstallForm) {
}
// Auto-login for admin
if err := ctx.Session.Set("uid", u.ID); err != nil {
if err = ctx.Session.Set("uid", u.ID); err != nil {
ctx.RenderWithErr(ctx.Tr("install.save_config_failed", err), tplInstall, &form)
return
}
if err := ctx.Session.Set("uname", u.Name); err != nil {
if err = ctx.Session.Set("uname", u.Name); err != nil {
ctx.RenderWithErr(ctx.Tr("install.save_config_failed", err), tplInstall, &form)
return
}

17
routers/user/auth.go
View file

@ -289,7 +289,11 @@ func Activate(ctx *context.Context) {
// Verify code.
if user := models.VerifyUserActiveCode(code); user != nil {
user.IsActive = true
user.Rands = models.GetUserSalt()
var err error
if user.Rands, err = models.GetUserSalt(); err != nil {
ctx.Handle(500, "UpdateUser", err)
return
}
if err := models.UpdateUser(user); err != nil {
if models.IsErrUserNotExist(err) {
ctx.Error(404)
@ -428,8 +432,15 @@ func ResetPasswdPost(ctx *context.Context) {
}
u.Passwd = passwd
u.Rands = models.GetUserSalt()
u.Salt = models.GetUserSalt()
var err error
if u.Rands, err = models.GetUserSalt(); err != nil {
ctx.Handle(500, "UpdateUser", err)
return
}
if u.Salt, err = models.GetUserSalt(); err != nil {
ctx.Handle(500, "UpdateUser", err)
return
}
u.EncodePasswd()
if err := models.UpdateUser(u); err != nil {
ctx.Handle(500, "UpdateUser", err)

6
routers/user/setting.go
View file

@ -197,7 +197,11 @@ func SettingsPasswordPost(ctx *context.Context, form auth.ChangePasswordForm) {
ctx.Flash.Error(ctx.Tr("form.password_not_match"))
} else {
ctx.User.Passwd = form.Password
ctx.User.Salt = models.GetUserSalt()
var err error
if ctx.User.Salt, err = models.GetUserSalt(); err != nil {
ctx.Handle(500, "UpdateUser", err)
return
}
ctx.User.EncodePasswd()
if err := models.UpdateUser(ctx.User); err != nil {
ctx.Handle(500, "UpdateUser", err)