From e777c6bdc6f12f9152335f8bfd66b956aedc9957 Mon Sep 17 00:00:00 2001 From: Jonas Franz Date: Fri, 8 Mar 2019 17:42:50 +0100 Subject: [PATCH] Integrate OAuth2 Provider (#5378) --- Gopkg.lock | 5 +- cmd/generate.go | 2 +- custom/conf/app.ini.sample | 10 + .../doc/advanced/config-cheat-sheet.en-us.md | 7 + integrations/oauth_test.go | 138 ++++++ models/error.go | 39 ++ models/fixtures/oauth2_application.yml | 9 + models/fixtures/oauth2_authorization_code.yml | 8 + models/fixtures/oauth2_grant.yml | 6 + models/models.go | 3 + models/oauth2_application.go | 457 ++++++++++++++++++ models/oauth2_application_test.go | 209 ++++++++ models/user.go | 1 + modules/auth/auth.go | 33 +- modules/auth/user_form.go | 59 +++ modules/generate/generate.go | 8 +- modules/secret/secret.go | 33 ++ modules/secret/secret_test.go | 22 + modules/setting/setting.go | 49 +- options/locale/locale_en-US.ini | 32 ++ public/css/index.css | 2 +- public/less/_base.less | 4 + routers/install.go | 2 +- routers/routes/routes.go | 14 + routers/user/oauth.go | 452 +++++++++++++++++ routers/user/setting/applications.go | 8 + routers/user/setting/oauth2.go | 112 +++++ templates/user/auth/grant.tmpl | 31 ++ templates/user/auth/grant_error.tmpl | 16 + templates/user/settings/applications.tmpl | 4 + .../user/settings/applications_oauth2.tmpl | 58 +++ .../settings/applications_oauth2_edit.tmpl | 66 +++ vendor/golang.org/x/crypto/bcrypt/base64.go | 35 ++ vendor/golang.org/x/crypto/bcrypt/bcrypt.go | 295 +++++++++++ vendor/golang.org/x/crypto/blowfish/block.go | 159 ++++++ vendor/golang.org/x/crypto/blowfish/cipher.go | 91 ++++ vendor/golang.org/x/crypto/blowfish/const.go | 199 ++++++++ 37 files changed, 2667 insertions(+), 11 deletions(-) create mode 100644 integrations/oauth_test.go create mode 100644 models/fixtures/oauth2_application.yml create mode 100644 models/fixtures/oauth2_authorization_code.yml create mode 100644 models/fixtures/oauth2_grant.yml create mode 100644 models/oauth2_application.go create mode 100644 models/oauth2_application_test.go create mode 100644 modules/secret/secret.go create mode 100644 modules/secret/secret_test.go create mode 100644 routers/user/oauth.go create mode 100644 routers/user/setting/oauth2.go create mode 100644 templates/user/auth/grant.tmpl create mode 100644 templates/user/auth/grant_error.tmpl create mode 100644 templates/user/settings/applications_oauth2.tmpl create mode 100644 templates/user/settings/applications_oauth2_edit.tmpl create mode 100644 vendor/golang.org/x/crypto/bcrypt/base64.go create mode 100644 vendor/golang.org/x/crypto/bcrypt/bcrypt.go create mode 100644 vendor/golang.org/x/crypto/blowfish/block.go create mode 100644 vendor/golang.org/x/crypto/blowfish/cipher.go create mode 100644 vendor/golang.org/x/crypto/blowfish/const.go diff --git a/Gopkg.lock b/Gopkg.lock index 00dea0587a2..c9b70766f71 100644 --- a/Gopkg.lock +++ b/Gopkg.lock @@ -962,11 +962,13 @@ revision = "2c050d2dae5345c417db301f11fda6fbf5ad0f0a" [[projects]] - digest = "1:c3d6b9e2cf3936ba9927da2e8858651aad69890b9dd3349f1316b4003b25d7a3" + digest = "1:590035a7bbea1c037c2e6d51f81ee09857480c3c21f1f77397d9802f10507c06" name = "golang.org/x/crypto" packages = [ "acme", "acme/autocert", + "bcrypt", + "blowfish", "cast5", "curve25519", "ed25519", @@ -1315,6 +1317,7 @@ "github.com/urfave/cli", "github.com/yohcop/openid-go", "golang.org/x/crypto/acme/autocert", + "golang.org/x/crypto/bcrypt", "golang.org/x/crypto/pbkdf2", "golang.org/x/crypto/ssh", "golang.org/x/net/html", diff --git a/cmd/generate.go b/cmd/generate.go index 27c5d7884e8..e7071706e94 100644 --- a/cmd/generate.go +++ b/cmd/generate.go @@ -63,7 +63,7 @@ func runGenerateInternalToken(c *cli.Context) error { } func runGenerateLfsJwtSecret(c *cli.Context) error { - JWTSecretBase64, err := generate.NewLfsJwtSecret() + JWTSecretBase64, err := generate.NewJwtSecret() if err != nil { return err } diff --git a/custom/conf/app.ini.sample b/custom/conf/app.ini.sample index 9323e5a0d58..6e030221c4e 100644 --- a/custom/conf/app.ini.sample +++ b/custom/conf/app.ini.sample @@ -654,6 +654,16 @@ DEFAULT_PAGING_NUM = 30 ; Default and maximum number of items per page for git trees api DEFAULT_GIT_TREES_PER_PAGE = 1000 +[oauth2] +; Enables OAuth2 provider +ENABLED = true +; Lifetime of an OAuth2 access token in seconds +ACCESS_TOKEN_EXPIRATION_TIME=3600 +; Lifetime of an OAuth2 access token in hours +REFRESH_TOKEN_EXPIRATION_TIME=730 +; OAuth2 authentication secret for access and refresh tokens, change this a unique string. +JWT_SECRET=Bk0yK7Y9g_p56v86KaHqjSbxvNvu3SbKoOdOt2ZcXvU + [i18n] LANGS = en-US,zh-CN,zh-HK,zh-TW,de-DE,fr-FR,nl-NL,lv-LV,ru-RU,uk-UA,ja-JP,es-ES,pt-BR,pl-PL,bg-BG,it-IT,fi-FI,tr-TR,cs-CZ,sr-SP,sv-SE,ko-KR NAMES = English,简体中文,繁體中文（香港）,繁體中文（台灣）,Deutsch,français,Nederlands,latviešu,русский,Українська,日本語,español,português do Brasil,polski,български,italiano,suomi,Türkçe,čeština,српски,svenska,한국어 diff --git a/docs/content/doc/advanced/config-cheat-sheet.en-us.md b/docs/content/doc/advanced/config-cheat-sheet.en-us.md index a7e8f767367..40c96efa33c 100644 --- a/docs/content/doc/advanced/config-cheat-sheet.en-us.md +++ b/docs/content/doc/advanced/config-cheat-sheet.en-us.md @@ -345,6 +345,13 @@ Values containing `#` or `;` must be quoted using `` ` `` or `"""`. - `DEFAULT_PAGING_NUM`: **30**: Default paging number of api. - `DEFAULT_GIT_TREES_PER_PAGE`: **1000**: Default and maximum number of items per page for git trees api. +## OAuth2 (`oauth2`) + +- `ENABLED`: **true**: Enables OAuth2 provider. +- `ACCESS_TOKEN_EXPIRATION_TIME`: **3600**: Lifetime of an OAuth2 access token in seconds +- `REFRESH_TOKEN_EXPIRATION_TIME`: **730**: Lifetime of an OAuth2 access token in hours +- `JWT_SECRET`: **\**: OAuth2 authentication secret for access and refresh tokens, change this a unique string. + ## i18n (`i18n`) - `LANGS`: **en-US,zh-CN,zh-HK,zh-TW,de-DE,fr-FR,nl-NL,lv-LV,ru-RU,ja-JP,es-ES,pt-BR,pl-PL,bg-BG,it-IT,fi-FI,tr-TR,cs-CZ,sr-SP,sv-SE,ko-KR**: List of locales shown in language selector diff --git a/integrations/oauth_test.go b/integrations/oauth_test.go new file mode 100644 index 00000000000..53b83bb01a4 --- /dev/null +++ b/integrations/oauth_test.go @@ -0,0 +1,138 @@ +// Copyright 2019 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package integrations + +import ( + "encoding/json" + "testing" + + "github.com/stretchr/testify/assert" +) + +const defaultAuthorize = "/login/oauth/authorize?client_id=da7da3ba-9a13-4167-856f-3899de0b0138&redirect_uri=a&response_type=code&state=thestate" + +func TestNoClientID(t *testing.T) { + prepareTestEnv(t) + req := NewRequest(t, "GET", "/login/oauth/authorize") + ctx := loginUser(t, "user2") + ctx.MakeRequest(t, req, 400) +} + +func TestLoginRedirect(t *testing.T) { + prepareTestEnv(t) + req := NewRequest(t, "GET", "/login/oauth/authorize") + assert.Contains(t, MakeRequest(t, req, 302).Body.String(), "/user/login") +} + +func TestShowAuthorize(t *testing.T) { + prepareTestEnv(t) + req := NewRequest(t, "GET", defaultAuthorize) + ctx := loginUser(t, "user4") + resp := ctx.MakeRequest(t, req, 200) + + htmlDoc := NewHTMLParser(t, resp.Body) + htmlDoc.AssertElement(t, "#authorize-app", true) + htmlDoc.GetCSRF() +} + +func TestRedirectWithExistingGrant(t *testing.T) { + prepareTestEnv(t) + req := NewRequest(t, "GET", defaultAuthorize) + ctx := loginUser(t, "user1") + resp := ctx.MakeRequest(t, req, 302) + u, err := resp.Result().Location() + assert.NoError(t, err) + assert.Equal(t, "thestate", u.Query().Get("state")) + assert.Truef(t, len(u.Query().Get("code")) > 30, "authorization code '%s' should be longer then 30", u.Query().Get("code")) +} + +func TestAccessTokenExchange(t *testing.T) { + prepareTestEnv(t) + req := NewRequestWithValues(t, "POST", "/login/oauth/access_token", map[string]string{ + "grant_type": "authorization_code", + "client_id": "da7da3ba-9a13-4167-856f-3899de0b0138", + "client_secret": "4MK8Na6R55smdCY0WuCCumZ6hjRPnGY5saWVRHHjJiA=", + "redirect_uri": "a", + "code": "authcode", + "code_verifier": "N1Zo9-8Rfwhkt68r1r29ty8YwIraXR8eh_1Qwxg7yQXsonBt", // test PKCE additionally + }) + resp := MakeRequest(t, req, 200) + type response struct { + AccessToken string `json:"access_token"` + TokenType string `json:"token_type"` + ExpiresIn int64 `json:"expires_in"` + RefreshToken string `json:"refresh_token"` + } + parsed := new(response) + assert.NoError(t, json.Unmarshal(resp.Body.Bytes(), parsed)) + assert.True(t, len(parsed.AccessToken) > 10) + assert.True(t, len(parsed.RefreshToken) > 10) +} + +func TestAccessTokenExchangeWithoutPKCE(t *testing.T) { + prepareTestEnv(t) + req := NewRequestWithValues(t, "POST", "/login/oauth/access_token", map[string]string{ + "grant_type": "authorization_code", + "client_id": "da7da3ba-9a13-4167-856f-3899de0b0138", + "client_secret": "4MK8Na6R55smdCY0WuCCumZ6hjRPnGY5saWVRHHjJiA=", + "redirect_uri": "a", + "code": "authcode", + }) + MakeRequest(t, req, 400) +} + +func TestAccessTokenExchangeWithInvalidCredentials(t *testing.T) { + prepareTestEnv(t) + // invalid client id + req := NewRequestWithValues(t, "POST", "/login/oauth/access_token", map[string]string{ + "grant_type": "authorization_code", + "client_id": "???", + "client_secret": "4MK8Na6R55smdCY0WuCCumZ6hjRPnGY5saWVRHHjJiA=", + "redirect_uri": "a", + "code": "authcode", + "code_verifier": "N1Zo9-8Rfwhkt68r1r29ty8YwIraXR8eh_1Qwxg7yQXsonBt", // test PKCE additionally + }) + MakeRequest(t, req, 400) + // invalid client secret + req = NewRequestWithValues(t, "POST", "/login/oauth/access_token", map[string]string{ + "grant_type": "authorization_code", + "client_id": "da7da3ba-9a13-4167-856f-3899de0b0138", + "client_secret": "???", + "redirect_uri": "a", + "code": "authcode", + "code_verifier": "N1Zo9-8Rfwhkt68r1r29ty8YwIraXR8eh_1Qwxg7yQXsonBt", // test PKCE additionally + }) + MakeRequest(t, req, 400) + // invalid redirect uri + req = NewRequestWithValues(t, "POST", "/login/oauth/access_token", map[string]string{ + "grant_type": "authorization_code", + "client_id": "da7da3ba-9a13-4167-856f-3899de0b0138", + "client_secret": "4MK8Na6R55smdCY0WuCCumZ6hjRPnGY5saWVRHHjJiA=", + "redirect_uri": "???", + "code": "authcode", + "code_verifier": "N1Zo9-8Rfwhkt68r1r29ty8YwIraXR8eh_1Qwxg7yQXsonBt", // test PKCE additionally + }) + MakeRequest(t, req, 400) + // invalid authorization code + req = NewRequestWithValues(t, "POST", "/login/oauth/access_token", map[string]string{ + "grant_type": "authorization_code", + "client_id": "da7da3ba-9a13-4167-856f-3899de0b0138", + "client_secret": "4MK8Na6R55smdCY0WuCCumZ6hjRPnGY5saWVRHHjJiA=", + "redirect_uri": "a", + "code": "???", + "code_verifier": "N1Zo9-8Rfwhkt68r1r29ty8YwIraXR8eh_1Qwxg7yQXsonBt", // test PKCE additionally + }) + MakeRequest(t, req, 400) + // invalid grant_type + req = NewRequestWithValues(t, "POST", "/login/oauth/access_token", map[string]string{ + "grant_type": "???", + "client_id": "da7da3ba-9a13-4167-856f-3899de0b0138", + "client_secret": "4MK8Na6R55smdCY0WuCCumZ6hjRPnGY5saWVRHHjJiA=", + "redirect_uri": "a", + "code": "authcode", + "code_verifier": "N1Zo9-8Rfwhkt68r1r29ty8YwIraXR8eh_1Qwxg7yQXsonBt", // test PKCE additionally + }) + MakeRequest(t, req, 400) +} diff --git a/models/error.go b/models/error.go index 649d9b87a81..6a135bda1ab 100644 --- a/models/error.go +++ b/models/error.go @@ -1398,3 +1398,42 @@ func IsErrReviewNotExist(err error) bool { func (err ErrReviewNotExist) Error() string { return fmt.Sprintf("review does not exist [id: %d]", err.ID) } + +// ________ _____ __ .__ +// \_____ \ / _ \ __ ___/ |_| |__ +// / | \ / /_\ \| | \ __\ | \ +// / | \/ | \ | /| | | Y \ +// \_______ /\____|__ /____/ |__| |___| / +// \/ \/ \/ + +// ErrOAuthClientIDInvalid will be thrown if client id cannot be found +type ErrOAuthClientIDInvalid struct { + ClientID string +} + +// IsErrOauthClientIDInvalid checks if an error is a ErrReviewNotExist. +func IsErrOauthClientIDInvalid(err error) bool { + _, ok := err.(ErrOAuthClientIDInvalid) + return ok +} + +// Error returns the error message +func (err ErrOAuthClientIDInvalid) Error() string { + return fmt.Sprintf("Client ID invalid [Client ID: %s]", err.ClientID) +} + +// ErrOAuthApplicationNotFound will be thrown if id cannot be found +type ErrOAuthApplicationNotFound struct { + ID int64 +} + +// IsErrOAuthApplicationNotFound checks if an error is a ErrReviewNotExist. +func IsErrOAuthApplicationNotFound(err error) bool { + _, ok := err.(ErrOAuthApplicationNotFound) + return ok +} + +// Error returns the error message +func (err ErrOAuthApplicationNotFound) Error() string { + return fmt.Sprintf("OAuth application not found [ID: %d]", err.ID) +} diff --git a/models/fixtures/oauth2_application.yml b/models/fixtures/oauth2_application.yml new file mode 100644 index 00000000000..a13e20b10e2 --- /dev/null +++ b/models/fixtures/oauth2_application.yml @@ -0,0 +1,9 @@ +- + id: 1 + uid: 1 + name: "Test" + client_id: "da7da3ba-9a13-4167-856f-3899de0b0138" + client_secret: "$2a$10$UYRgUSgekzBp6hYe8pAdc.cgB4Gn06QRKsORUnIYTYQADs.YR/uvi" # bcrypt of "4MK8Na6R55smdCY0WuCCumZ6hjRPnGY5saWVRHHjJiA= + redirect_uris: '["a"]' + created_unix: 1546869730 + updated_unix: 1546869730 diff --git a/models/fixtures/oauth2_authorization_code.yml b/models/fixtures/oauth2_authorization_code.yml new file mode 100644 index 00000000000..2abce16354a --- /dev/null +++ b/models/fixtures/oauth2_authorization_code.yml @@ -0,0 +1,8 @@ +- id: 1 + grant_id: 1 + code: "authcode" + code_challenge: "CjvyTLSdR47G5zYenDA-eDWW4lRrO8yvjcWwbD_deOg" # Code Verifier: N1Zo9-8Rfwhkt68r1r29ty8YwIraXR8eh_1Qwxg7yQXsonBt + code_challenge_method: "S256" + redirect_uri: "a" + valid_until: 3546869730 + diff --git a/models/fixtures/oauth2_grant.yml b/models/fixtures/oauth2_grant.yml new file mode 100644 index 00000000000..113eec7e5c3 --- /dev/null +++ b/models/fixtures/oauth2_grant.yml @@ -0,0 +1,6 @@ +- id: 1 + user_id: 1 + application_id: 1 + counter: 1 + created_unix: 1546869730 + updated_unix: 1546869730 diff --git a/models/models.go b/models/models.go index faa363e835a..ac7e2e93bab 100644 --- a/models/models.go +++ b/models/models.go @@ -125,6 +125,9 @@ func init() { new(U2FRegistration), new(TeamUnit), new(Review), + new(OAuth2Application), + new(OAuth2AuthorizationCode), + new(OAuth2Grant), ) gonicNames := []string{"SSL", "UID"} diff --git a/models/oauth2_application.go b/models/oauth2_application.go new file mode 100644 index 00000000000..dd80a79b485 --- /dev/null +++ b/models/oauth2_application.go @@ -0,0 +1,457 @@ +// Copyright 2019 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package models + +import ( + "crypto/sha256" + "encoding/base64" + "fmt" + "net/url" + "time" + + "github.com/go-xorm/xorm" + uuid "github.com/satori/go.uuid" + + "code.gitea.io/gitea/modules/secret" + "code.gitea.io/gitea/modules/setting" + "code.gitea.io/gitea/modules/util" + + "github.com/Unknwon/com" + "github.com/dgrijalva/jwt-go" + "golang.org/x/crypto/bcrypt" +) + +// OAuth2Application represents an OAuth2 client (RFC 6749) +type OAuth2Application struct { + ID int64 `xorm:"pk autoincr"` + UID int64 `xorm:"INDEX"` + User *User `xorm:"-"` + + Name string + + ClientID string `xorm:"unique"` + ClientSecret string + + RedirectURIs []string `xorm:"redirect_uris JSON TEXT"` + + CreatedUnix util.TimeStamp `xorm:"INDEX created"` + UpdatedUnix util.TimeStamp `xorm:"INDEX updated"` +} + +// TableName sets the table name to `oauth2_application` +func (app *OAuth2Application) TableName() string { + return "oauth2_application" +} + +// PrimaryRedirectURI returns the first redirect uri or an empty string if empty +func (app *OAuth2Application) PrimaryRedirectURI() string { + if len(app.RedirectURIs) == 0 { + return "" + } + return app.RedirectURIs[0] +} + +// LoadUser will load User by UID +func (app *OAuth2Application) LoadUser() (err error) { + if app.User == nil { + app.User, err = GetUserByID(app.UID) + } + return +} + +// ContainsRedirectURI checks if redirectURI is allowed for app +func (app *OAuth2Application) ContainsRedirectURI(redirectURI string) bool { + return com.IsSliceContainsStr(app.RedirectURIs, redirectURI) +} + +// GenerateClientSecret will generate the client secret and returns the plaintext and saves the hash at the database +func (app *OAuth2Application) GenerateClientSecret() (string, error) { + clientSecret, err := secret.New() + if err != nil { + return "", err + } + hashedSecret, err := bcrypt.GenerateFromPassword([]byte(clientSecret), bcrypt.DefaultCost) + if err != nil { + return "", err + } + app.ClientSecret = string(hashedSecret) + if _, err := x.ID(app.ID).Cols("client_secret").Update(app); err != nil { + return "", err + } + return clientSecret, nil +} + +// ValidateClientSecret validates the given secret by the hash saved in database +func (app *OAuth2Application) ValidateClientSecret(secret []byte) bool { + return bcrypt.CompareHashAndPassword([]byte(app.ClientSecret), secret) == nil +} + +// GetGrantByUserID returns a OAuth2Grant by its user and application ID +func (app *OAuth2Application) GetGrantByUserID(userID int64) (*OAuth2Grant, error) { + return app.getGrantByUserID(x, userID) +} + +func (app *OAuth2Application) getGrantByUserID(e Engine, userID int64) (grant *OAuth2Grant, err error) { + grant = new(OAuth2Grant) + if has, err := e.Where("user_id = ? AND application_id = ?", userID, app.ID).Get(grant); err != nil { + return nil, err + } else if !has { + return nil, nil + } + return grant, nil +} + +// CreateGrant generates a grant for an user +func (app *OAuth2Application) CreateGrant(userID int64) (*OAuth2Grant, error) { + return app.createGrant(x, userID) +} + +func (app *OAuth2Application) createGrant(e Engine, userID int64) (*OAuth2Grant, error) { + grant := &OAuth2Grant{ + ApplicationID: app.ID, + UserID: userID, + } + _, err := e.Insert(grant) + if err != nil { + return nil, err + } + return grant, nil +} + +// GetOAuth2ApplicationByClientID returns the oauth2 application with the given client_id. Returns an error if not found. +func GetOAuth2ApplicationByClientID(clientID string) (app *OAuth2Application, err error) { + return getOAuth2ApplicationByClientID(x, clientID) +} + +func getOAuth2ApplicationByClientID(e Engine, clientID string) (app *OAuth2Application, err error) { + app = new(OAuth2Application) + has, err := e.Where("client_id = ?", clientID).Get(app) + if !has { + return nil, ErrOAuthClientIDInvalid{ClientID: clientID} + } + return +} + +// GetOAuth2ApplicationByID returns the oauth2 application with the given id. Returns an error if not found. +func GetOAuth2ApplicationByID(id int64) (app *OAuth2Application, err error) { + return getOAuth2ApplicationByID(x, id) +} + +func getOAuth2ApplicationByID(e Engine, id int64) (app *OAuth2Application, err error) { + app = new(OAuth2Application) + has, err := e.ID(id).Get(app) + if !has { + return nil, ErrOAuthApplicationNotFound{ID: id} + } + return app, nil +} + +// GetOAuth2ApplicationsByUserID returns all oauth2 applications owned by the user +func GetOAuth2ApplicationsByUserID(userID int64) (apps []*OAuth2Application, err error) { + return getOAuth2ApplicationsByUserID(x, userID) +} + +func getOAuth2ApplicationsByUserID(e Engine, userID int64) (apps []*OAuth2Application, err error) { + apps = make([]*OAuth2Application, 0) + err = e.Where("uid = ?", userID).Find(&apps) + return +} + +// CreateOAuth2ApplicationOptions holds options to create an oauth2 application +type CreateOAuth2ApplicationOptions struct { + Name string + UserID int64 + RedirectURIs []string +} + +// CreateOAuth2Application inserts a new oauth2 application +func CreateOAuth2Application(opts CreateOAuth2ApplicationOptions) (*OAuth2Application, error) { + return createOAuth2Application(x, opts) +} + +func createOAuth2Application(e Engine, opts CreateOAuth2ApplicationOptions) (*OAuth2Application, error) { + clientID := uuid.NewV4().String() + app := &OAuth2Application{ + UID: opts.UserID, + Name: opts.Name, + ClientID: clientID, + RedirectURIs: opts.RedirectURIs, + } + if _, err := e.Insert(app); err != nil { + return nil, err + } + return app, nil +} + +// UpdateOAuth2ApplicationOptions holds options to update an oauth2 application +type UpdateOAuth2ApplicationOptions struct { + ID int64 + Name string + UserID int64 + RedirectURIs []string +} + +// UpdateOAuth2Application updates an oauth2 application +func UpdateOAuth2Application(opts UpdateOAuth2ApplicationOptions) error { + return updateOAuth2Application(x, opts) +} + +func updateOAuth2Application(e Engine, opts UpdateOAuth2ApplicationOptions) error { + app := &OAuth2Application{ + ID: opts.ID, + UID: opts.UserID, + Name: opts.Name, + RedirectURIs: opts.RedirectURIs, + } + if _, err := e.ID(opts.ID).Update(app); err != nil { + return err + } + return nil +} + +func deleteOAuth2Application(sess *xorm.Session, id, userid int64) error { + if deleted, err := sess.Delete(&OAuth2Application{ID: id, UID: userid}); err != nil { + return err + } else if deleted == 0 { + return fmt.Errorf("cannot find oauth2 application") + } + codes := make([]*OAuth2AuthorizationCode, 0) + // delete correlating auth codes + if err := sess.Join("INNER", "oauth2_grant", + "oauth2_authorization_code.grant_id = oauth2_grant.id AND oauth2_grant.application_id = ?", id).Find(&codes); err != nil { + return err + } + codeIDs := make([]int64, 0) + for _, grant := range codes { + codeIDs = append(codeIDs, grant.ID) + } + + if _, err := sess.In("id", codeIDs).Delete(new(OAuth2AuthorizationCode)); err != nil { + return err + } + + if _, err := sess.Where("application_id = ?", id).Delete(new(OAuth2Grant)); err != nil { + return err + } + return nil +} + +// DeleteOAuth2Application deletes the application with the given id and the grants and auth codes related to it. It checks if the userid was the creator of the app. +func DeleteOAuth2Application(id, userid int64) error { + sess := x.NewSession() + if err := sess.Begin(); err != nil { + return err + } + if err := deleteOAuth2Application(sess, id, userid); err != nil { + return err + } + return sess.Commit() +} + +////////////////////////////////////////////////////// + +// OAuth2AuthorizationCode is a code to obtain an access token in combination with the client secret once. It has a limited lifetime. +type OAuth2AuthorizationCode struct { + ID int64 `xorm:"pk autoincr"` + Grant *OAuth2Grant `xorm:"-"` + GrantID int64 + Code string `xorm:"INDEX unique"` + CodeChallenge string + CodeChallengeMethod string + RedirectURI string + ValidUntil util.TimeStamp `xorm:"index"` +} + +// TableName sets the table name to `oauth2_authorization_code` +func (code *OAuth2AuthorizationCode) TableName() string { + return "oauth2_authorization_code" +} + +// GenerateRedirectURI generates a redirect URI for a successful authorization request. State will be used if not empty. +func (code *OAuth2AuthorizationCode) GenerateRedirectURI(state string) (redirect *url.URL, err error) { + if redirect, err = url.Parse(code.RedirectURI); err != nil { + return + } + q := redirect.Query() + if state != "" { + q.Set("state", state) + } + q.Set("code", code.Code) + redirect.RawQuery = q.Encode() + return +} + +// Invalidate deletes the auth code from the database to invalidate this code +func (code *OAuth2AuthorizationCode) Invalidate() error { + return code.invalidate(x) +} + +func (code *OAuth2AuthorizationCode) invalidate(e Engine) error { + _, err := e.Delete(code) + return err +} + +// ValidateCodeChallenge validates the given verifier against the saved code challenge. This is part of the PKCE implementation. +func (code *OAuth2AuthorizationCode) ValidateCodeChallenge(verifier string) bool { + return code.validateCodeChallenge(x, verifier) +} + +func (code *OAuth2AuthorizationCode) validateCodeChallenge(e Engine, verifier string) bool { + switch code.CodeChallengeMethod { + case "S256": + // base64url(SHA256(verifier)) see https://tools.ietf.org/html/rfc7636#section-4.6 + h := sha256.Sum256([]byte(verifier)) + hashedVerifier := base64.RawURLEncoding.EncodeToString(h[:]) + return hashedVerifier == code.CodeChallenge + case "plain": + return verifier == code.CodeChallenge + case "": + return true + default: + // unsupported method -> return false + return false + } +} + +// GetOAuth2AuthorizationByCode returns an authorization by its code +func GetOAuth2AuthorizationByCode(code string) (*OAuth2AuthorizationCode, error) { + return getOAuth2AuthorizationByCode(x, code) +} + +func getOAuth2AuthorizationByCode(e Engine, code string) (auth *OAuth2AuthorizationCode, err error) { + auth = new(OAuth2AuthorizationCode) + if has, err := e.Where("code = ?", code).Get(auth); err != nil { + return nil, err + } else if !has { + return nil, nil + } + auth.Grant = new(OAuth2Grant) + if has, err := e.ID(auth.GrantID).Get(auth.Grant); err != nil { + return nil, err + } else if !has { + return nil, nil + } + return auth, nil +} + +////////////////////////////////////////////////////// + +// OAuth2Grant represents the permission of an user for a specifc application to access resources +type OAuth2Grant struct { + ID int64 `xorm:"pk autoincr"` + UserID int64 `xorm:"INDEX unique(user_application)"` + ApplicationID int64 `xorm:"INDEX unique(user_application)"` + Counter int64 `xorm:"NOT NULL DEFAULT 1"` + CreatedUnix util.TimeStamp `xorm:"created"` + UpdatedUnix util.TimeStamp `xorm:"updated"` +} + +// TableName sets the table name to `oauth2_grant` +func (grant *OAuth2Grant) TableName() string { + return "oauth2_grant" +} + +// GenerateNewAuthorizationCode generates a new authorization code for a grant and saves it to the databse +func (grant *OAuth2Grant) GenerateNewAuthorizationCode(redirectURI, codeChallenge, codeChallengeMethod string) (*OAuth2AuthorizationCode, error) { + return grant.generateNewAuthorizationCode(x, redirectURI, codeChallenge, codeChallengeMethod) +} + +func (grant *OAuth2Grant) generateNewAuthorizationCode(e Engine, redirectURI, codeChallenge, codeChallengeMethod string) (code *OAuth2AuthorizationCode, err error) { + var codeSecret string + if codeSecret, err = secret.New(); err != nil { + return &OAuth2AuthorizationCode{}, err + } + code = &OAuth2AuthorizationCode{ + Grant: grant, + GrantID: grant.ID, + RedirectURI: redirectURI, + Code: codeSecret, + CodeChallenge: codeChallenge, + CodeChallengeMethod: codeChallengeMethod, + } + if _, err := e.Insert(code); err != nil { + return nil, err + } + return code, nil +} + +// IncreaseCounter increases the counter and updates the grant +func (grant *OAuth2Grant) IncreaseCounter() error { + return grant.increaseCount(x) +} + +func (grant *OAuth2Grant) increaseCount(e Engine) error { + _, err := e.ID(grant.ID).Incr("counter").Update(new(OAuth2Grant)) + if err != nil { + return err + } + updatedGrant, err := getOAuth2GrantByID(e, grant.ID) + if err != nil { + return err + } + grant.Counter = updatedGrant.Counter + return nil +} + +// GetOAuth2GrantByID returns the grant with the given ID +func GetOAuth2GrantByID(id int64) (*OAuth2Grant, error) { + return getOAuth2GrantByID(x, id) +} + +func getOAuth2GrantByID(e Engine, id int64) (grant *OAuth2Grant, err error) { + grant = new(OAuth2Grant) + if has, err := e.ID(id).Get(grant); err != nil { + return nil, err + } else if !has { + return nil, nil + } + return +} + +////////////////////////////////////////////////////////////// + +// OAuth2TokenType represents the type of token for an oauth application +type OAuth2TokenType int + +const ( + // TypeAccessToken is a token with short lifetime to access the api + TypeAccessToken OAuth2TokenType = 0 + // TypeRefreshToken is token with long lifetime to refresh access tokens obtained by the client + TypeRefreshToken = iota +) + +// OAuth2Token represents a JWT token used to authenticate a client +type OAuth2Token struct { + GrantID int64 `json:"gnt"` + Type OAuth2TokenType `json:"tt"` + Counter int64 `json:"cnt,omitempty"` + jwt.StandardClaims +} + +// ParseOAuth2Token parses a singed jwt string +func ParseOAuth2Token(jwtToken string) (*OAuth2Token, error) { + parsedToken, err := jwt.ParseWithClaims(jwtToken, &OAuth2Token{}, func(token *jwt.Token) (interface{}, error) { + if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok { + return nil, fmt.Errorf("unexpected signing algo: %v", token.Header["alg"]) + } + return setting.OAuth2.JWTSecretBytes, nil + }) + if err != nil { + return nil, err + } + var token *OAuth2Token + var ok bool + if token, ok = parsedToken.Claims.(*OAuth2Token); !ok || !parsedToken.Valid { + return nil, fmt.Errorf("invalid token") + } + return token, nil +} + +// SignToken signs the token with the JWT secret +func (token *OAuth2Token) SignToken() (string, error) { + token.IssuedAt = time.Now().Unix() + jwtToken := jwt.NewWithClaims(jwt.SigningMethodHS512, token) + return jwtToken.SignedString(setting.OAuth2.JWTSecretBytes) +} diff --git a/models/oauth2_application_test.go b/models/oauth2_application_test.go new file mode 100644 index 00000000000..b06d9356c0b --- /dev/null +++ b/models/oauth2_application_test.go @@ -0,0 +1,209 @@ +// Copyright 2019 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package models + +import ( + "testing" + + "github.com/stretchr/testify/assert" +) + +//////////////////// Application + +func TestOAuth2Application_GenerateClientSecret(t *testing.T) { + assert.NoError(t, PrepareTestDatabase()) + app := AssertExistsAndLoadBean(t, &OAuth2Application{ID: 1}).(*OAuth2Application) + secret, err := app.GenerateClientSecret() + assert.NoError(t, err) + assert.True(t, len(secret) > 0) + AssertExistsAndLoadBean(t, &OAuth2Application{ID: 1, ClientSecret: app.ClientSecret}) +} + +func BenchmarkOAuth2Application_GenerateClientSecret(b *testing.B) { + assert.NoError(b, PrepareTestDatabase()) + app := AssertExistsAndLoadBean(b, &OAuth2Application{ID: 1}).(*OAuth2Application) + for i := 0; i < b.N; i++ { + _, _ = app.GenerateClientSecret() + } +} + +func TestOAuth2Application_ContainsRedirectURI(t *testing.T) { + app := &OAuth2Application{ + RedirectURIs: []string{"a", "b", "c"}, + } + assert.True(t, app.ContainsRedirectURI("a")) + assert.True(t, app.ContainsRedirectURI("b")) + assert.True(t, app.ContainsRedirectURI("c")) + assert.False(t, app.ContainsRedirectURI("d")) +} + +func TestOAuth2Application_ValidateClientSecret(t *testing.T) { + assert.NoError(t, PrepareTestDatabase()) + app := AssertExistsAndLoadBean(t, &OAuth2Application{ID: 1}).(*OAuth2Application) + secret, err := app.GenerateClientSecret() + assert.NoError(t, err) + assert.True(t, app.ValidateClientSecret([]byte(secret))) + assert.False(t, app.ValidateClientSecret([]byte("fewijfowejgfiowjeoifew"))) +} + +func TestGetOAuth2ApplicationByClientID(t *testing.T) { + assert.NoError(t, PrepareTestDatabase()) + app, err := GetOAuth2ApplicationByClientID("da7da3ba-9a13-4167-856f-3899de0b0138") + assert.NoError(t, err) + assert.Equal(t, "da7da3ba-9a13-4167-856f-3899de0b0138", app.ClientID) + + app, err = GetOAuth2ApplicationByClientID("invalid client id") + assert.Error(t, err) + assert.Nil(t, app) +} + +func TestCreateOAuth2Application(t *testing.T) { + assert.NoError(t, PrepareTestDatabase()) + app, err := CreateOAuth2Application(CreateOAuth2ApplicationOptions{Name: "newapp", UserID: 1}) + assert.NoError(t, err) + assert.Equal(t, "newapp", app.Name) + assert.Len(t, app.ClientID, 36) + AssertExistsAndLoadBean(t, &OAuth2Application{Name: "newapp"}) +} + +func TestOAuth2Application_LoadUser(t *testing.T) { + assert.NoError(t, PrepareTestDatabase()) + app := AssertExistsAndLoadBean(t, &OAuth2Application{ID: 1}).(*OAuth2Application) + assert.NoError(t, app.LoadUser()) + assert.NotNil(t, app.User) +} + +func TestOAuth2Application_TableName(t *testing.T) { + assert.Equal(t, "oauth2_application", new(OAuth2Application).TableName()) +} + +func TestOAuth2Application_GetGrantByUserID(t *testing.T) { + assert.NoError(t, PrepareTestDatabase()) + app := AssertExistsAndLoadBean(t, &OAuth2Application{ID: 1}).(*OAuth2Application) + grant, err := app.GetGrantByUserID(1) + assert.NoError(t, err) + assert.Equal(t, int64(1), grant.UserID) + + grant, err = app.GetGrantByUserID(34923458) + assert.NoError(t, err) + assert.Nil(t, grant) +} + +func TestOAuth2Application_CreateGrant(t *testing.T) { + assert.NoError(t, PrepareTestDatabase()) + app := AssertExistsAndLoadBean(t, &OAuth2Application{ID: 1}).(*OAuth2Application) + grant, err := app.CreateGrant(2) + assert.NoError(t, err) + assert.NotNil(t, grant) + assert.Equal(t, int64(2), grant.UserID) + assert.Equal(t, int64(1), grant.ApplicationID) +} + +//////////////////// Grant + +func TestGetOAuth2GrantByID(t *testing.T) { + assert.NoError(t, PrepareTestDatabase()) + grant, err := GetOAuth2GrantByID(1) + assert.NoError(t, err) + assert.Equal(t, int64(1), grant.ID) + + grant, err = GetOAuth2GrantByID(34923458) + assert.NoError(t, err) + assert.Nil(t, grant) +} + +func TestOAuth2Grant_IncreaseCounter(t *testing.T) { + assert.NoError(t, PrepareTestDatabase()) + grant := AssertExistsAndLoadBean(t, &OAuth2Grant{ID: 1, Counter: 1}).(*OAuth2Grant) + assert.NoError(t, grant.IncreaseCounter()) + assert.Equal(t, int64(2), grant.Counter) + AssertExistsAndLoadBean(t, &OAuth2Grant{ID: 1, Counter: 2}) +} + +func TestOAuth2Grant_GenerateNewAuthorizationCode(t *testing.T) { + assert.NoError(t, PrepareTestDatabase()) + grant := AssertExistsAndLoadBean(t, &OAuth2Grant{ID: 1}).(*OAuth2Grant) + code, err := grant.GenerateNewAuthorizationCode("https://example2.com/callback", "CjvyTLSdR47G5zYenDA-eDWW4lRrO8yvjcWwbD_deOg", "S256") + assert.NoError(t, err) + assert.NotNil(t, code) + assert.True(t, len(code.Code) > 32) // secret length > 32 +} + +func TestOAuth2Grant_TableName(t *testing.T) { + assert.Equal(t, "oauth2_grant", new(OAuth2Grant).TableName()) +} + +//////////////////// Authorization Code + +func TestGetOAuth2AuthorizationByCode(t *testing.T) { + assert.NoError(t, PrepareTestDatabase()) + code, err := GetOAuth2AuthorizationByCode("authcode") + assert.NoError(t, err) + assert.NotNil(t, code) + assert.Equal(t, "authcode", code.Code) + assert.Equal(t, int64(1), code.ID) + + code, err = GetOAuth2AuthorizationByCode("does not exist") + assert.NoError(t, err) + assert.Nil(t, code) +} + +func TestOAuth2AuthorizationCode_ValidateCodeChallenge(t *testing.T) { + // test plain + code := &OAuth2AuthorizationCode{ + CodeChallengeMethod: "plain", + CodeChallenge: "test123", + } + assert.True(t, code.ValidateCodeChallenge("test123")) + assert.False(t, code.ValidateCodeChallenge("ierwgjoergjio")) + + // test S256 + code = &OAuth2AuthorizationCode{ + CodeChallengeMethod: "S256", + CodeChallenge: "CjvyTLSdR47G5zYenDA-eDWW4lRrO8yvjcWwbD_deOg", + } + assert.True(t, code.ValidateCodeChallenge("N1Zo9-8Rfwhkt68r1r29ty8YwIraXR8eh_1Qwxg7yQXsonBt")) + assert.False(t, code.ValidateCodeChallenge("wiogjerogorewngoenrgoiuenorg")) + + // test unknown + code = &OAuth2AuthorizationCode{ + CodeChallengeMethod: "monkey", + CodeChallenge: "foiwgjioriogeiogjerger", + } + assert.False(t, code.ValidateCodeChallenge("foiwgjioriogeiogjerger")) + + // test no code challenge + code = &OAuth2AuthorizationCode{ + CodeChallengeMethod: "", + CodeChallenge: "foierjiogerogerg", + } + assert.True(t, code.ValidateCodeChallenge("")) +} + +func TestOAuth2AuthorizationCode_GenerateRedirectURI(t *testing.T) { + code := &OAuth2AuthorizationCode{ + RedirectURI: "https://example.com/callback", + Code: "thecode", + } + + redirect, err := code.GenerateRedirectURI("thestate") + assert.NoError(t, err) + assert.Equal(t, redirect.String(), "https://example.com/callback?code=thecode&state=thestate") + + redirect, err = code.GenerateRedirectURI("") + assert.NoError(t, err) + assert.Equal(t, redirect.String(), "https://example.com/callback?code=thecode") +} + +func TestOAuth2AuthorizationCode_Invalidate(t *testing.T) { + assert.NoError(t, PrepareTestDatabase()) + code := AssertExistsAndLoadBean(t, &OAuth2AuthorizationCode{Code: "authcode"}).(*OAuth2AuthorizationCode) + assert.NoError(t, code.Invalidate()) + AssertNotExistsBean(t, &OAuth2AuthorizationCode{Code: "authcode"}) +} + +func TestOAuth2AuthorizationCode_TableName(t *testing.T) { + assert.Equal(t, "oauth2_authorization_code", new(OAuth2AuthorizationCode).TableName()) +} diff --git a/models/user.go b/models/user.go index b244f4ecefa..1ed949355fc 100644 --- a/models/user.go +++ b/models/user.go @@ -742,6 +742,7 @@ var ( "template", "user", "vendor", + "login", "robots.txt", ".", "..", diff --git a/modules/auth/auth.go b/modules/auth/auth.go index f2530fa37cd..4be358b7377 100644 --- a/modules/auth/auth.go +++ b/modules/auth/auth.go @@ -7,6 +7,7 @@ package auth import ( "reflect" "strings" + "time" "github.com/Unknwon/com" "github.com/go-macaron/binding" @@ -44,7 +45,7 @@ func SignedInID(ctx *macaron.Context, sess session.Store) int64 { auHead := ctx.Req.Header.Get("Authorization") if len(auHead) > 0 { auths := strings.Fields(auHead) - if len(auths) == 2 && auths[0] == "token" { + if len(auths) == 2 && (auths[0] == "token" || strings.ToLower(auths[0]) == "bearer") { tokenSHA = auths[1] } } @@ -52,6 +53,13 @@ func SignedInID(ctx *macaron.Context, sess session.Store) int64 { // Let's see if token is valid. if len(tokenSHA) > 0 { + if strings.Contains(tokenSHA, ".") { + uid := checkOAuthAccessToken(tokenSHA) + if uid != 0 { + ctx.Data["IsApiToken"] = true + } + return uid + } t, err := models.GetAccessTokenBySHA(tokenSHA) if err != nil { if models.IsErrAccessTokenNotExist(err) || models.IsErrAccessTokenEmpty(err) { @@ -77,6 +85,29 @@ func SignedInID(ctx *macaron.Context, sess session.Store) int64 { return 0 } +func checkOAuthAccessToken(accessToken string) int64 { + // JWT tokens require a "." + if !strings.Contains(accessToken, ".") { + return 0 + } + token, err := models.ParseOAuth2Token(accessToken) + if err != nil { + log.Trace("ParseOAuth2Token", err) + return 0 + } + var grant *models.OAuth2Grant + if grant, err = models.GetOAuth2GrantByID(token.GrantID); err != nil || grant == nil { + return 0 + } + if token.Type != models.TypeAccessToken { + return 0 + } + if token.ExpiresAt < time.Now().Unix() || token.IssuedAt > time.Now().Unix() { + return 0 + } + return grant.UserID +} + // SignedInUser returns the user object of signed user. // It returns a bool value to indicate whether user uses basic auth or not. func SignedInUser(ctx *macaron.Context, sess session.Store) (*models.User, bool) { diff --git a/modules/auth/user_form.go b/modules/auth/user_form.go index 3a4df8ea7d2..be0f9bf1bf3 100644 --- a/modules/auth/user_form.go +++ b/modules/auth/user_form.go @@ -137,6 +137,54 @@ func (f *SignInForm) Validate(ctx *macaron.Context, errs binding.Errors) binding return validate(errs, ctx.Data, f, ctx.Locale) } +// AuthorizationForm form for authorizing oauth2 clients +type AuthorizationForm struct { + ResponseType string `binding:"Required;In(code)"` + ClientID string `binding:"Required"` + RedirectURI string + State string + + // PKCE support + CodeChallengeMethod string // S256, plain + CodeChallenge string +} + +// Validate valideates the fields +func (f *AuthorizationForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors { + return validate(errs, ctx.Data, f, ctx.Locale) +} + +// GrantApplicationForm form for authorizing oauth2 clients +type GrantApplicationForm struct { + ClientID string `binding:"Required"` + RedirectURI string + State string +} + +// Validate valideates the fields +func (f *GrantApplicationForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors { + return validate(errs, ctx.Data, f, ctx.Locale) +} + +// AccessTokenForm for issuing access tokens from authorization codes or refresh tokens +type AccessTokenForm struct { + GrantType string + ClientID string + ClientSecret string + RedirectURI string + // TODO Specify authentication code length to prevent against birthday attacks + Code string + RefreshToken string + + // PKCE support + CodeVerifier string +} + +// Validate valideates the fields +func (f *AccessTokenForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors { + return validate(errs, ctx.Data, f, ctx.Locale) +} + // __________________________________________.___ _______ ________ _________ // / _____/\_ _____/\__ ___/\__ ___/| |\ \ / _____/ / _____/ // \_____ \ | __)_ | | | | | |/ | \/ \ ___ \_____ \ @@ -258,6 +306,17 @@ func (f *NewAccessTokenForm) Validate(ctx *macaron.Context, errs binding.Errors) return validate(errs, ctx.Data, f, ctx.Locale) } +// EditOAuth2ApplicationForm form for editing oauth2 applications +type EditOAuth2ApplicationForm struct { + Name string `binding:"Required;MaxSize(255)" form:"application_name"` + RedirectURI string `binding:"Required" form:"redirect_uri"` +} + +// Validate valideates the fields +func (f *EditOAuth2ApplicationForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors { + return validate(errs, ctx.Data, f, ctx.Locale) +} + // TwoFactorAuthForm for logging in with 2FA token. type TwoFactorAuthForm struct { Passcode string `binding:"Required"` diff --git a/modules/generate/generate.go b/modules/generate/generate.go index d0e7593013f..304ad87f213 100644 --- a/modules/generate/generate.go +++ b/modules/generate/generate.go @@ -57,16 +57,14 @@ func NewInternalToken() (string, error) { return internalToken, nil } -// NewLfsJwtSecret generate a new value intended to be used by LFS_JWT_SECRET. -func NewLfsJwtSecret() (string, error) { +// NewJwtSecret generate a new value intended to be used by LFS_JWT_SECRET. +func NewJwtSecret() (string, error) { JWTSecretBytes := make([]byte, 32) _, err := io.ReadFull(rand.Reader, JWTSecretBytes) if err != nil { return "", err } - - JWTSecretBase64 := base64.RawURLEncoding.EncodeToString(JWTSecretBytes) - return JWTSecretBase64, nil + return base64.RawURLEncoding.EncodeToString(JWTSecretBytes), nil } // NewSecretKey generate a new value intended to be used by SECRET_KEY. diff --git a/modules/secret/secret.go b/modules/secret/secret.go new file mode 100644 index 00000000000..d0e4deacb90 --- /dev/null +++ b/modules/secret/secret.go @@ -0,0 +1,33 @@ +// Copyright 2019 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package secret + +import ( + "crypto/rand" + "encoding/base64" +) + +// New creats a new secret +func New() (string, error) { + return NewWithLength(32) +} + +// NewWithLength creates a new secret for a given length +func NewWithLength(length int64) (string, error) { + return randomString(length) +} + +func randomBytes(len int64) ([]byte, error) { + b := make([]byte, len) + if _, err := rand.Read(b); err != nil { + return nil, err + } + return b, nil +} + +func randomString(len int64) (string, error) { + b, err := randomBytes(len) + return base64.URLEncoding.EncodeToString(b), err +} diff --git a/modules/secret/secret_test.go b/modules/secret/secret_test.go new file mode 100644 index 00000000000..c47201f2d74 --- /dev/null +++ b/modules/secret/secret_test.go @@ -0,0 +1,22 @@ +// Copyright 2019 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package secret + +import ( + "testing" + + "github.com/stretchr/testify/assert" +) + +func TestNew(t *testing.T) { + result, err := New() + assert.NoError(t, err) + assert.True(t, len(result) > 32) + + result2, err := New() + assert.NoError(t, err) + // check if secrets + assert.NotEqual(t, result, result2) +} diff --git a/modules/setting/setting.go b/modules/setting/setting.go index 4c016f3489b..9a36ceb60e4 100644 --- a/modules/setting/setting.go +++ b/modules/setting/setting.go @@ -560,6 +560,18 @@ var ( DefaultGitTreesPerPage: 1000, } + OAuth2 = struct { + Enable bool + AccessTokenExpirationTime int64 + RefreshTokenExpirationTime int64 + JWTSecretBytes []byte `ini:"-"` + JWTSecretBase64 string `ini:"JWT_SECRET"` + }{ + Enable: true, + AccessTokenExpirationTime: 3600, + RefreshTokenExpirationTime: 730, + } + U2F = struct { AppID string TrustedFacets []string @@ -922,7 +934,7 @@ func NewContext() { n, err := base64.RawURLEncoding.Decode(LFS.JWTSecretBytes, []byte(LFS.JWTSecretBase64)) if err != nil || n != 32 { - LFS.JWTSecretBase64, err = generate.NewLfsJwtSecret() + LFS.JWTSecretBase64, err = generate.NewJwtSecret() if err != nil { log.Fatal(4, "Error generating JWT Secret for custom config: %v", err) return @@ -949,6 +961,41 @@ func NewContext() { } } + if err = Cfg.Section("oauth2").MapTo(&OAuth2); err != nil { + log.Fatal(4, "Failed to OAuth2 settings: %v", err) + return + } + + if OAuth2.Enable { + OAuth2.JWTSecretBytes = make([]byte, 32) + n, err := base64.RawURLEncoding.Decode(OAuth2.JWTSecretBytes, []byte(OAuth2.JWTSecretBase64)) + + if err != nil || n != 32 { + OAuth2.JWTSecretBase64, err = generate.NewJwtSecret() + if err != nil { + log.Fatal(4, "error generating JWT secret: %v", err) + return + } + cfg := ini.Empty() + if com.IsFile(CustomConf) { + if err := cfg.Append(CustomConf); err != nil { + log.Error(4, "failed to load custom conf %s: %v", CustomConf, err) + return + } + } + cfg.Section("oauth2").Key("JWT_SECRET").SetValue(OAuth2.JWTSecretBase64) + + if err := os.MkdirAll(filepath.Dir(CustomConf), os.ModePerm); err != nil { + log.Fatal(4, "failed to create '%s': %v", CustomConf, err) + return + } + if err := cfg.SaveTo(CustomConf); err != nil { + log.Fatal(4, "error saving generating JWT secret to custom config: %v", err) + return + } + } + } + sec = Cfg.Section("security") InstallLock = sec.Key("INSTALL_LOCK").MustBool(false) SecretKey = sec.Key("SECRET_KEY").MustString("!#@FDEWREWR&*(") diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini index f188f1f2aeb..6662400ad98 100644 --- a/options/locale/locale_en-US.ini +++ b/options/locale/locale_en-US.ini @@ -243,6 +243,13 @@ openid_register_desc = The chosen OpenID URI is unknown. Associate it with a new openid_signin_desc = Enter your OpenID URI. For example: https://anne.me, bob.openid.org.cn or gnusocial.net/carry. disable_forgot_password_mail = Password reset is disabled. Please contact your site administrator. email_domain_blacklisted = You cannot register with your email address. +authorize_application = Authorize Application +authroize_redirect_notice = You will be redirected to %s if you authorize this application. +authorize_application_created_by = This application was created by %s. +authorize_application_description = If you grant the access, it will be able to access and write to all your account information, including private repos and organisations. +authorize_title = Authorize "%s" to access your account? +authorization_failed = Authorization failed +authorization_failed_desc = The authorization failed because we detected an invalid request. Please contact the maintainer of the app you've tried to authorize. [mail] activate_account = Please activate your account @@ -466,6 +473,31 @@ access_token_deletion = Delete Access Token access_token_deletion_desc = Deleting a token will revoke access to your account for applications using it. Continue? delete_token_success = The token has been deleted. Applications using it no longer have access to your account. +manage_oauth2_applications = Manage OAuth2 Applications +edit_oauth2_application = Edit OAuth2 Application +oauth2_applications_desc = OAuth2 applications enables your third-party application to securely authenticate users at this Gitea instance. +remove_oauth2_application = Remove OAuth2 Application +remove_oauth2_application_desc = Removing an OAuth2 application will revoke access to all signed access tokes. Continue? +remove_oauth2_application_success = The application has been deleted. +create_oauth2_application = Create a new OAuth2 Application +create_oauth2_application_button = Create Application +create_oauth2_application_success = You've successfully created a new OAuth2 application. +update_oauth2_application_success = You've successfully updated the OAuth2 application. +oauth2_application_name = Application Name +oauth2_select_type = Which application type fits? +oauth2_type_web = Web (e.g. Node.JS, Tomcat, Go) +oauth2_type_native = Native (e.g. Mobile, Desktop, Browser) +oauth2_redirect_uri = Redirect URI +save_application = Save +oauth2_client_id = Client ID +oauth2_client_secret = Client Secret +oauth2_regenerate_secret = Regenerate Secret +oauth2_regenerate_secret_hint = Lost your secret? +oauth2_client_secret_hint = The secret won't be visible if you revisit this page. Please save your secret. +oauth2_application_edit = Edit +oauth2_application_create_description = OAuth2 applications gives your third-party application access to user accounts on this instance. +oauth2_application_remove_description = Removing an OAuth2 application will prevent it to access authorized user accounts on this instance. Continue? + twofa_desc = Two-factor authentication enhances the security of your account. twofa_is_enrolled = Your account is currently enrolled in two-factor authentication. twofa_not_enrolled = Your account is not currently enrolled in two-factor authentication. diff --git a/public/css/index.css b/public/css/index.css index 9fec25db3e8..6a69ca845c3 100644 --- a/public/css/index.css +++ b/public/css/index.css @@ -1 +1 @@ -.tribute-container{box-shadow:0 1px 3px 1px #c7c7c7}.tribute-container ul{background:#fff}.tribute-container li{padding:8px 12px;border-bottom:1px solid #dcdcdc}.tribute-container li img{display:inline-block;vertical-align:middle;width:28px;height:28px;margin-right:5px}.tribute-container li span.fullname{font-weight:400;font-size:.8rem;margin-left:3px}.tribute-container li.highlight,.tribute-container li:hover{background:#2185D0;color:#fff}.emoji{width:1.5em;height:1.5em;display:inline-block;background-size:contain}.ui.label 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Consolas,"Liberation Mono",Menlo,Courier,monospace;color:rgba(0,0,0,.87)} \ No newline at end of file diff --git a/public/less/_base.less b/public/less/_base.less index bdf25b71ce8..68761f4edeb 100644 --- a/public/less/_base.less +++ b/public/less/_base.less @@ -633,3 +633,7 @@ footer { .archived-icon{ color: lighten(#000, 70%) !important; } + +.oauth2-authorize-application-box { + margin-top: 3em !important; +} diff --git a/routers/install.go b/routers/install.go index 5e97bcc93c1..1344792661b 100644 --- a/routers/install.go +++ b/routers/install.go @@ -266,7 +266,7 @@ func InstallPost(ctx *context.Context, form auth.InstallForm) { cfg.Section("server").Key("LFS_START_SERVER").SetValue("true") cfg.Section("server").Key("LFS_CONTENT_PATH").SetValue(form.LFSRootPath) var secretKey string - if secretKey, err = generate.NewLfsJwtSecret(); err != nil { + if secretKey, err = generate.NewJwtSecret(); err != nil { ctx.RenderWithErr(ctx.Tr("install.lfs_jwt_secret_failed", err), tplInstall, &form) return } diff --git a/routers/routes/routes.go b/routers/routes/routes.go index b73b030a51e..01da321e495 100644 --- a/routers/routes/routes.go +++ b/routers/routes/routes.go @@ -257,6 +257,14 @@ func RegisterRoutes(m *macaron.Macaron) { }) }, reqSignOut) + m.Group("/login/oauth", func() { + m.Get("/authorize", bindIgnErr(auth.AuthorizationForm{}), user.AuthorizeOAuth) + m.Post("/grant", bindIgnErr(auth.GrantApplicationForm{}), user.GrantApplicationOAuth) + // TODO manage redirection + m.Post("/authorize", bindIgnErr(auth.AuthorizationForm{}), user.AuthorizeOAuth) + }, ignSignInAndCsrf, reqSignIn) + m.Post("/login/oauth/access_token", bindIgnErr(auth.AccessTokenForm{}), ignSignInAndCsrf, user.AccessTokenOAuth) + m.Group("/user/settings", func() { m.Get("", userSetting.Profile) m.Post("", bindIgnErr(auth.UpdateProfileForm{}), userSetting.ProfilePost) @@ -291,6 +299,12 @@ func RegisterRoutes(m *macaron.Macaron) { }, openIDSignInEnabled) m.Post("/account_link", userSetting.DeleteAccountLink) }) + m.Group("/applications/oauth2", func() { + m.Get("/:id", userSetting.OAuth2ApplicationShow) + m.Post("/:id", bindIgnErr(auth.EditOAuth2ApplicationForm{}), userSetting.OAuthApplicationsEdit) + m.Post("", bindIgnErr(auth.EditOAuth2ApplicationForm{}), userSetting.OAuthApplicationsPost) + m.Post("/delete", userSetting.DeleteOAuth2Application) + }) m.Combo("/applications").Get(userSetting.Applications). Post(bindIgnErr(auth.NewAccessTokenForm{}), userSetting.ApplicationsPost) m.Post("/applications/delete", userSetting.DeleteApplication) diff --git a/routers/user/oauth.go b/routers/user/oauth.go new file mode 100644 index 00000000000..dbb3c4a3916 --- /dev/null +++ b/routers/user/oauth.go @@ -0,0 +1,452 @@ +// Copyright 2019 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package user + +import ( + "fmt" + "net/url" + + "github.com/dgrijalva/jwt-go" + "github.com/go-macaron/binding" + + "code.gitea.io/gitea/models" + "code.gitea.io/gitea/modules/auth" + "code.gitea.io/gitea/modules/base" + "code.gitea.io/gitea/modules/context" + "code.gitea.io/gitea/modules/log" + "code.gitea.io/gitea/modules/setting" + "code.gitea.io/gitea/modules/util" +) + +const ( + tplGrantAccess base.TplName = "user/auth/grant" + tplGrantError base.TplName = "user/auth/grant_error" +) + +// TODO move error and responses to SDK or models + +// AuthorizeErrorCode represents an error code specified in RFC 6749 +type AuthorizeErrorCode string + +const ( + // ErrorCodeInvalidRequest represents the according error in RFC 6749 + ErrorCodeInvalidRequest AuthorizeErrorCode = "invalid_request" + // ErrorCodeUnauthorizedClient represents the according error in RFC 6749 + ErrorCodeUnauthorizedClient AuthorizeErrorCode = "unauthorized_client" + // ErrorCodeAccessDenied represents the according error in RFC 6749 + ErrorCodeAccessDenied AuthorizeErrorCode = "access_denied" + // ErrorCodeUnsupportedResponseType represents the according error in RFC 6749 + ErrorCodeUnsupportedResponseType AuthorizeErrorCode = "unsupported_response_type" + // ErrorCodeInvalidScope represents the according error in RFC 6749 + ErrorCodeInvalidScope AuthorizeErrorCode = "invalid_scope" + // ErrorCodeServerError represents the according error in RFC 6749 + ErrorCodeServerError AuthorizeErrorCode = "server_error" + // ErrorCodeTemporaryUnavailable represents the according error in RFC 6749 + ErrorCodeTemporaryUnavailable AuthorizeErrorCode = "temporarily_unavailable" +) + +// AuthorizeError represents an error type specified in RFC 6749 +type AuthorizeError struct { + ErrorCode AuthorizeErrorCode `json:"error" form:"error"` + ErrorDescription string + State string +} + +// Error returns the error message +func (err AuthorizeError) Error() string { + return fmt.Sprintf("%s: %s", err.ErrorCode, err.ErrorDescription) +} + +// AccessTokenErrorCode represents an error code specified in RFC 6749 +type AccessTokenErrorCode string + +const ( + // AccessTokenErrorCodeInvalidRequest represents an error code specified in RFC 6749 + AccessTokenErrorCodeInvalidRequest AccessTokenErrorCode = "invalid_request" + // AccessTokenErrorCodeInvalidClient represents an error code specified in RFC 6749 + AccessTokenErrorCodeInvalidClient = "invalid_client" + // AccessTokenErrorCodeInvalidGrant represents an error code specified in RFC 6749 + AccessTokenErrorCodeInvalidGrant = "invalid_grant" + // AccessTokenErrorCodeUnauthorizedClient represents an error code specified in RFC 6749 + AccessTokenErrorCodeUnauthorizedClient = "unauthorized_client" + // AccessTokenErrorCodeUnsupportedGrantType represents an error code specified in RFC 6749 + AccessTokenErrorCodeUnsupportedGrantType = "unsupported_grant_type" + // AccessTokenErrorCodeInvalidScope represents an error code specified in RFC 6749 + AccessTokenErrorCodeInvalidScope = "invalid_scope" +) + +// AccessTokenError represents an error response specified in RFC 6749 +type AccessTokenError struct { + ErrorCode AccessTokenErrorCode `json:"error" form:"error"` + ErrorDescription string `json:"error_description"` +} + +// Error returns the error message +func (err AccessTokenError) Error() string { + return fmt.Sprintf("%s: %s", err.ErrorCode, err.ErrorDescription) +} + +// TokenType specifies the kind of token +type TokenType string + +const ( + // TokenTypeBearer represents a token type specified in RFC 6749 + TokenTypeBearer TokenType = "bearer" + // TokenTypeMAC represents a token type specified in RFC 6749 + TokenTypeMAC = "mac" +) + +// AccessTokenResponse represents a successful access token response +type AccessTokenResponse struct { + AccessToken string `json:"access_token"` + TokenType TokenType `json:"token_type"` + ExpiresIn int64 `json:"expires_in"` + // TODO implement RefreshToken + RefreshToken string `json:"refresh_token"` +} + +func newAccessTokenResponse(grant *models.OAuth2Grant) (*AccessTokenResponse, *AccessTokenError) { + if err := grant.IncreaseCounter(); err != nil { + return nil, &AccessTokenError{ + ErrorCode: AccessTokenErrorCodeInvalidGrant, + ErrorDescription: "cannot increase the grant counter", + } + } + // generate access token to access the API + expirationDate := util.TimeStampNow().Add(setting.OAuth2.AccessTokenExpirationTime) + accessToken := &models.OAuth2Token{ + GrantID: grant.ID, + Type: models.TypeAccessToken, + StandardClaims: jwt.StandardClaims{ + ExpiresAt: expirationDate.AsTime().Unix(), + }, + } + signedAccessToken, err := accessToken.SignToken() + if err != nil { + return nil, &AccessTokenError{ + ErrorCode: AccessTokenErrorCodeInvalidRequest, + ErrorDescription: "cannot sign token", + } + } + + // generate refresh token to request an access token after it expired later + refreshExpirationDate := util.TimeStampNow().Add(setting.OAuth2.RefreshTokenExpirationTime * 60 * 60).AsTime().Unix() + refreshToken := &models.OAuth2Token{ + GrantID: grant.ID, + Counter: grant.Counter, + Type: models.TypeRefreshToken, + StandardClaims: jwt.StandardClaims{ + ExpiresAt: refreshExpirationDate, + }, + } + signedRefreshToken, err := refreshToken.SignToken() + if err != nil { + return nil, &AccessTokenError{ + ErrorCode: AccessTokenErrorCodeInvalidRequest, + ErrorDescription: "cannot sign token", + } + } + + return &AccessTokenResponse{ + AccessToken: signedAccessToken, + TokenType: TokenTypeBearer, + ExpiresIn: setting.OAuth2.AccessTokenExpirationTime, + RefreshToken: signedRefreshToken, + }, nil +} + +// AuthorizeOAuth manages authorize requests +func AuthorizeOAuth(ctx *context.Context, form auth.AuthorizationForm) { + errs := binding.Errors{} + errs = form.Validate(ctx.Context, errs) + + app, err := models.GetOAuth2ApplicationByClientID(form.ClientID) + if err != nil { + if models.IsErrOauthClientIDInvalid(err) { + handleAuthorizeError(ctx, AuthorizeError{ + ErrorCode: ErrorCodeUnauthorizedClient, + ErrorDescription: "Client ID not registered", + State: form.State, + }, "") + return + } + ctx.ServerError("GetOAuth2ApplicationByClientID", err) + return + } + if err := app.LoadUser(); err != nil { + ctx.ServerError("LoadUser", err) + return + } + + if !app.ContainsRedirectURI(form.RedirectURI) { + handleAuthorizeError(ctx, AuthorizeError{ + ErrorCode: ErrorCodeInvalidRequest, + ErrorDescription: "Unregistered Redirect URI", + State: form.State, + }, "") + return + } + + if form.ResponseType != "code" { + handleAuthorizeError(ctx, AuthorizeError{ + ErrorCode: ErrorCodeUnsupportedResponseType, + ErrorDescription: "Only code response type is supported.", + State: form.State, + }, form.RedirectURI) + return + } + + // pkce support + switch form.CodeChallengeMethod { + case "S256": + case "plain": + if err := ctx.Session.Set("CodeChallengeMethod", form.CodeChallengeMethod); err != nil { + handleAuthorizeError(ctx, AuthorizeError{ + ErrorCode: ErrorCodeServerError, + ErrorDescription: "cannot set code challenge method", + State: form.State, + }, form.RedirectURI) + return + } + if err := ctx.Session.Set("CodeChallengeMethod", form.CodeChallenge); err != nil { + handleAuthorizeError(ctx, AuthorizeError{ + ErrorCode: ErrorCodeServerError, + ErrorDescription: "cannot set code challenge", + State: form.State, + }, form.RedirectURI) + return + } + break + case "": + break + default: + handleAuthorizeError(ctx, AuthorizeError{ + ErrorCode: ErrorCodeInvalidRequest, + ErrorDescription: "unsupported code challenge method", + State: form.State, + }, form.RedirectURI) + return + } + + grant, err := app.GetGrantByUserID(ctx.User.ID) + if err != nil { + handleServerError(ctx, form.State, form.RedirectURI) + return + } + + // Redirect if user already granted access + if grant != nil { + code, err := grant.GenerateNewAuthorizationCode(form.RedirectURI, form.CodeChallenge, form.CodeChallengeMethod) + if err != nil { + handleServerError(ctx, form.State, form.RedirectURI) + return + } + redirect, err := code.GenerateRedirectURI(form.State) + if err != nil { + handleServerError(ctx, form.State, form.RedirectURI) + return + } + ctx.Redirect(redirect.String(), 302) + return + } + + // show authorize page to grant access + ctx.Data["Application"] = app + ctx.Data["RedirectURI"] = form.RedirectURI + ctx.Data["State"] = form.State + ctx.Data["ApplicationUserLink"] = "@" + app.User.Name + "" + ctx.Data["ApplicationRedirectDomainHTML"] = "" + form.RedirectURI + "" + // TODO document SESSION <=> FORM + ctx.Session.Set("client_id", app.ClientID) + ctx.Session.Set("redirect_uri", form.RedirectURI) + ctx.Session.Set("state", form.State) + ctx.HTML(200, tplGrantAccess) +} + +// GrantApplicationOAuth manages the post request submitted when a user grants access to an application +func GrantApplicationOAuth(ctx *context.Context, form auth.GrantApplicationForm) { + if ctx.Session.Get("client_id") != form.ClientID || ctx.Session.Get("state") != form.State || + ctx.Session.Get("redirect_uri") != form.RedirectURI { + ctx.Error(400) + return + } + app, err := models.GetOAuth2ApplicationByClientID(form.ClientID) + if err != nil { + ctx.ServerError("GetOAuth2ApplicationByClientID", err) + return + } + grant, err := app.CreateGrant(ctx.User.ID) + if err != nil { + handleAuthorizeError(ctx, AuthorizeError{ + State: form.State, + ErrorDescription: "cannot create grant for user", + ErrorCode: ErrorCodeServerError, + }, form.RedirectURI) + return + } + + var codeChallenge, codeChallengeMethod string + codeChallenge, _ = ctx.Session.Get("CodeChallenge").(string) + codeChallengeMethod, _ = ctx.Session.Get("CodeChallengeMethod").(string) + + code, err := grant.GenerateNewAuthorizationCode(form.RedirectURI, codeChallenge, codeChallengeMethod) + if err != nil { + handleServerError(ctx, form.State, form.RedirectURI) + return + } + redirect, err := code.GenerateRedirectURI(form.State) + if err != nil { + handleServerError(ctx, form.State, form.RedirectURI) + } + ctx.Redirect(redirect.String(), 302) +} + +// AccessTokenOAuth manages all access token requests by the client +func AccessTokenOAuth(ctx *context.Context, form auth.AccessTokenForm) { + switch form.GrantType { + case "refresh_token": + handleRefreshToken(ctx, form) + return + case "authorization_code": + handleAuthorizationCode(ctx, form) + return + default: + handleAccessTokenError(ctx, AccessTokenError{ + ErrorCode: AccessTokenErrorCodeUnsupportedGrantType, + ErrorDescription: "Only refresh_token or authorization_code grant type is supported", + }) + } +} + +func handleRefreshToken(ctx *context.Context, form auth.AccessTokenForm) { + token, err := models.ParseOAuth2Token(form.RefreshToken) + if err != nil { + handleAccessTokenError(ctx, AccessTokenError{ + ErrorCode: AccessTokenErrorCodeUnauthorizedClient, + ErrorDescription: "client is not authorized", + }) + return + } + // get grant before increasing counter + grant, err := models.GetOAuth2GrantByID(token.GrantID) + if err != nil || grant == nil { + handleAccessTokenError(ctx, AccessTokenError{ + ErrorCode: AccessTokenErrorCodeInvalidGrant, + ErrorDescription: "grant does not exist", + }) + return + } + + // check if token got already used + if grant.Counter != token.Counter || token.Counter == 0 { + handleAccessTokenError(ctx, AccessTokenError{ + ErrorCode: AccessTokenErrorCodeUnauthorizedClient, + ErrorDescription: "token was already used", + }) + log.Warn("A client tried to use a refresh token for grant_id = %d was used twice!", grant.ID) + return + } + accessToken, tokenErr := newAccessTokenResponse(grant) + if tokenErr != nil { + handleAccessTokenError(ctx, *tokenErr) + return + } + ctx.JSON(200, accessToken) +} + +func handleAuthorizationCode(ctx *context.Context, form auth.AccessTokenForm) { + app, err := models.GetOAuth2ApplicationByClientID(form.ClientID) + if err != nil { + handleAccessTokenError(ctx, AccessTokenError{ + ErrorCode: AccessTokenErrorCodeInvalidClient, + ErrorDescription: "cannot load client", + }) + return + } + if !app.ValidateClientSecret([]byte(form.ClientSecret)) { + handleAccessTokenError(ctx, AccessTokenError{ + ErrorCode: AccessTokenErrorCodeUnauthorizedClient, + ErrorDescription: "client is not authorized", + }) + return + } + if form.RedirectURI != "" && !app.ContainsRedirectURI(form.RedirectURI) { + handleAccessTokenError(ctx, AccessTokenError{ + ErrorCode: AccessTokenErrorCodeUnauthorizedClient, + ErrorDescription: "client is not authorized", + }) + return + } + authorizationCode, err := models.GetOAuth2AuthorizationByCode(form.Code) + if err != nil || authorizationCode == nil { + handleAccessTokenError(ctx, AccessTokenError{ + ErrorCode: AccessTokenErrorCodeUnauthorizedClient, + ErrorDescription: "client is not authorized", + }) + return + } + // check if code verifier authorizes the client, PKCE support + if !authorizationCode.ValidateCodeChallenge(form.CodeVerifier) { + handleAccessTokenError(ctx, AccessTokenError{ + ErrorCode: AccessTokenErrorCodeUnauthorizedClient, + ErrorDescription: "client is not authorized", + }) + return + } + // check if granted for this application + if authorizationCode.Grant.ApplicationID != app.ID { + handleAccessTokenError(ctx, AccessTokenError{ + ErrorCode: AccessTokenErrorCodeInvalidGrant, + ErrorDescription: "invalid grant", + }) + return + } + // remove token from database to deny duplicate usage + if err := authorizationCode.Invalidate(); err != nil { + handleAccessTokenError(ctx, AccessTokenError{ + ErrorCode: AccessTokenErrorCodeInvalidRequest, + ErrorDescription: "cannot proceed your request", + }) + } + resp, tokenErr := newAccessTokenResponse(authorizationCode.Grant) + if tokenErr != nil { + handleAccessTokenError(ctx, *tokenErr) + return + } + // send successful response + ctx.JSON(200, resp) +} + +func handleAccessTokenError(ctx *context.Context, acErr AccessTokenError) { + ctx.JSON(400, acErr) +} + +func handleServerError(ctx *context.Context, state string, redirectURI string) { + handleAuthorizeError(ctx, AuthorizeError{ + ErrorCode: ErrorCodeServerError, + ErrorDescription: "A server error occurred", + State: state, + }, redirectURI) +} + +func handleAuthorizeError(ctx *context.Context, authErr AuthorizeError, redirectURI string) { + if redirectURI == "" { + log.Warn("Authorization failed: %v", authErr.ErrorDescription) + ctx.Data["Error"] = authErr + ctx.HTML(400, tplGrantError) + return + } + redirect, err := url.Parse(redirectURI) + if err != nil { + ctx.ServerError("url.Parse", err) + return + } + q := redirect.Query() + q.Set("error", string(authErr.ErrorCode)) + q.Set("error_description", authErr.ErrorDescription) + q.Set("state", authErr.State) + redirect.RawQuery = q.Encode() + ctx.Redirect(redirect.String(), 302) +} diff --git a/routers/user/setting/applications.go b/routers/user/setting/applications.go index ac7252469a9..bc8633f72d6 100644 --- a/routers/user/setting/applications.go +++ b/routers/user/setting/applications.go @@ -74,4 +74,12 @@ func loadApplicationsData(ctx *context.Context) { return } ctx.Data["Tokens"] = tokens + ctx.Data["EnableOAuth2"] = setting.OAuth2.Enable + if setting.OAuth2.Enable { + ctx.Data["Applications"], err = models.GetOAuth2ApplicationsByUserID(ctx.User.ID) + if err != nil { + ctx.ServerError("GetOAuth2ApplicationsByUserID", err) + return + } + } } diff --git a/routers/user/setting/oauth2.go b/routers/user/setting/oauth2.go new file mode 100644 index 00000000000..7ae8e7b7f66 --- /dev/null +++ b/routers/user/setting/oauth2.go @@ -0,0 +1,112 @@ +// Copyright 2019 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package setting + +import ( + "code.gitea.io/gitea/models" + "code.gitea.io/gitea/modules/auth" + "code.gitea.io/gitea/modules/base" + "code.gitea.io/gitea/modules/context" + "code.gitea.io/gitea/modules/log" + "code.gitea.io/gitea/modules/setting" +) + +const ( + tplSettingsOAuthApplications base.TplName = "user/settings/applications_oauth2_edit" +) + +// OAuthApplicationsPost response for adding a oauth2 application +func OAuthApplicationsPost(ctx *context.Context, form auth.EditOAuth2ApplicationForm) { + ctx.Data["Title"] = ctx.Tr("settings") + ctx.Data["PageIsSettingsApplications"] = true + + if ctx.HasError() { + loadApplicationsData(ctx) + + ctx.HTML(200, tplSettingsApplications) + return + } + // TODO validate redirect URI + app, err := models.CreateOAuth2Application(models.CreateOAuth2ApplicationOptions{ + Name: form.Name, + RedirectURIs: []string{form.RedirectURI}, + UserID: ctx.User.ID, + }) + if err != nil { + ctx.ServerError("CreateOAuth2Application", err) + return + } + ctx.Flash.Success(ctx.Tr("settings.create_oauth2_application_success")) + ctx.Data["App"] = app + ctx.Data["ClientSecret"], err = app.GenerateClientSecret() + if err != nil { + ctx.ServerError("GenerateClientSecret", err) + return + } + ctx.HTML(200, tplSettingsOAuthApplications) +} + +// OAuthApplicationsEdit response for editing oauth2 application +func OAuthApplicationsEdit(ctx *context.Context, form auth.EditOAuth2ApplicationForm) { + ctx.Data["Title"] = ctx.Tr("settings") + ctx.Data["PageIsSettingsApplications"] = true + + if ctx.HasError() { + loadApplicationsData(ctx) + + ctx.HTML(200, tplSettingsApplications) + return + } + // TODO validate redirect URI + if err := models.UpdateOAuth2Application(models.UpdateOAuth2ApplicationOptions{ + ID: ctx.ParamsInt64("id"), + Name: form.Name, + RedirectURIs: []string{form.RedirectURI}, + UserID: ctx.User.ID, + }); err != nil { + ctx.ServerError("UpdateOAuth2Application", err) + return + } + var err error + if ctx.Data["App"], err = models.GetOAuth2ApplicationByID(ctx.ParamsInt64("id")); err != nil { + ctx.ServerError("GetOAuth2ApplicationByID", err) + return + } + ctx.Flash.Success(ctx.Tr("settings.update_oauth2_application_success")) + ctx.HTML(200, tplSettingsOAuthApplications) +} + +// OAuth2ApplicationShow displays the given application +func OAuth2ApplicationShow(ctx *context.Context) { + app, err := models.GetOAuth2ApplicationByID(ctx.ParamsInt64("id")) + if err != nil { + if models.IsErrOAuthApplicationNotFound(err) { + ctx.NotFound("Application not found", err) + return + } + ctx.ServerError("GetOAuth2ApplicationByID", err) + return + } + if app.UID != ctx.User.ID { + ctx.NotFound("Application not found", nil) + return + } + ctx.Data["App"] = app + ctx.HTML(200, tplSettingsOAuthApplications) +} + +// DeleteOAuth2Application deletes the given oauth2 application +func DeleteOAuth2Application(ctx *context.Context) { + if err := models.DeleteOAuth2Application(ctx.QueryInt64("id"), ctx.User.ID); err != nil { + ctx.ServerError("DeleteOAuth2Application", err) + return + } + log.Trace("OAuth2 Application deleted: %s", ctx.User.Name) + + ctx.Flash.Success(ctx.Tr("settings.remove_oauth2_application_success")) + ctx.JSON(200, map[string]interface{}{ + "redirect": setting.AppSubURL + "/user/settings/applications", + }) +} diff --git a/templates/user/auth/grant.tmpl b/templates/user/auth/grant.tmpl new file mode 100644 index 00000000000..85c507a74a6 --- /dev/null +++ b/templates/user/auth/grant.tmpl @@ -0,0 +1,31 @@ +{{template "base/head" .}} +
+
+
+

+ {{.i18n.Tr "auth.authorize_title" .Application.Name}} +

+
+ {{template "base/alert" .}} +

+ {{.i18n.Tr "auth.authorize_application_description"}}
+ {{.i18n.Tr "auth.authorize_application_created_by" .ApplicationUserLink | Str2html}} +

+
+
+

{{.i18n.Tr "auth.authroize_redirect_notice" .ApplicationRedirectDomainHTML | Str2html}}

+
+
+
+ {{.CsrfTokenHtml}} + + + + + Cancel +
+
+
+
+
+{{template "base/footer" .}} diff --git a/templates/user/auth/grant_error.tmpl b/templates/user/auth/grant_error.tmpl new file mode 100644 index 00000000000..0eb175fbe28 --- /dev/null +++ b/templates/user/auth/grant_error.tmpl @@ -0,0 +1,16 @@ +{{template "base/head" .}} +{{if .IsRepo}}
{{template "repo/header" .}}
{{end}} +
+
+
+

+ {{.i18n.Tr "auth.authorization_failed" }} +

+

{{.Error.ErrorDescription}}

+
+

{{.i18n.Tr "auth.authorization_failed_desc"}}

+
+
+
+
+{{template "base/footer" .}} diff --git a/templates/user/settings/applications.tmpl b/templates/user/settings/applications.tmpl index d8426441857..1a3ab5efaf6 100644 --- a/templates/user/settings/applications.tmpl +++ b/templates/user/settings/applications.tmpl @@ -45,6 +45,10 @@ + + {{if .EnableOAuth2}} + {{template "user/settings/applications_oauth2" .}} + {{end}} diff --git a/templates/user/settings/applications_oauth2.tmpl b/templates/user/settings/applications_oauth2.tmpl new file mode 100644 index 00000000000..42d1950f9fc --- /dev/null +++ b/templates/user/settings/applications_oauth2.tmpl @@ -0,0 +1,58 @@ +

+ {{.i18n.Tr "settings.manage_oauth2_applications"}} +

+
+
+
+ {{.i18n.Tr "settings.oauth2_application_create_description"}} +
+ {{range $app := .Applications}} +
+
+ + + {{$.i18n.Tr "settings.oauth2_application_edit"}} + + +
+
+ {{$app.Name}} +
+
+ {{end}} +
+
+
+
+ {{.i18n.Tr "settings.create_oauth2_application" }} +
+
+ {{.CsrfTokenHtml}} +
+ + +
+
+ + +
+ +
+
+ + diff --git a/templates/user/settings/applications_oauth2_edit.tmpl b/templates/user/settings/applications_oauth2_edit.tmpl new file mode 100644 index 00000000000..5de179ecaf1 --- /dev/null +++ b/templates/user/settings/applications_oauth2_edit.tmpl @@ -0,0 +1,66 @@ +{{template "base/head" .}} +
+ {{template "user/settings/navbar" .}} +
+ {{template "base/alert" .}} +

+ {{.i18n.Tr "settings.edit_oauth2_application"}} +

+
+ {{template "base/alert" .}} +

{{.i18n.Tr "settings.oauth2_application_create_description"}}

+
+
+ {{.CsrfTokenHtml}} +
+ + +
+ {{if .ClientSecret}} +
+ + +
+ {{else}} +
+ + +
+ {{end}} +
+ + {{.i18n.Tr "settings.oauth2_regenerate_secret_hint"}} + {{.i18n.Tr "settings.oauth2_regenerate_secret"}} +
+
+
+
+ {{.CsrfTokenHtml}} +
+ + +
+
+ + +
+ +
+
+
+
+ + + +{{template "base/footer" .}} diff --git a/vendor/golang.org/x/crypto/bcrypt/base64.go b/vendor/golang.org/x/crypto/bcrypt/base64.go new file mode 100644 index 00000000000..fc311609081 --- /dev/null +++ b/vendor/golang.org/x/crypto/bcrypt/base64.go @@ -0,0 +1,35 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package bcrypt + +import "encoding/base64" + +const alphabet = "./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" + +var bcEncoding = base64.NewEncoding(alphabet) + +func base64Encode(src []byte) []byte { + n := bcEncoding.EncodedLen(len(src)) + dst := make([]byte, n) + bcEncoding.Encode(dst, src) + for dst[n-1] == '=' { + n-- + } + return dst[:n] +} + +func base64Decode(src []byte) ([]byte, error) { + numOfEquals := 4 - (len(src) % 4) + for i := 0; i < numOfEquals; i++ { + src = append(src, '=') + } + + dst := make([]byte, bcEncoding.DecodedLen(len(src))) + n, err := bcEncoding.Decode(dst, src) + if err != nil { + return nil, err + } + return dst[:n], nil +} diff --git a/vendor/golang.org/x/crypto/bcrypt/bcrypt.go b/vendor/golang.org/x/crypto/bcrypt/bcrypt.go new file mode 100644 index 00000000000..aeb73f81a14 --- /dev/null +++ b/vendor/golang.org/x/crypto/bcrypt/bcrypt.go @@ -0,0 +1,295 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package bcrypt implements Provos and Mazières's bcrypt adaptive hashing +// algorithm. See http://www.usenix.org/event/usenix99/provos/provos.pdf +package bcrypt // import "golang.org/x/crypto/bcrypt" + +// The code is a port of Provos and Mazières's C implementation. +import ( + "crypto/rand" + "crypto/subtle" + "errors" + "fmt" + "io" + "strconv" + + "golang.org/x/crypto/blowfish" +) + +const ( + MinCost int = 4 // the minimum allowable cost as passed in to GenerateFromPassword + MaxCost int = 31 // the maximum allowable cost as passed in to GenerateFromPassword + DefaultCost int = 10 // the cost that will actually be set if a cost below MinCost is passed into GenerateFromPassword +) + +// The error returned from CompareHashAndPassword when a password and hash do +// not match. +var ErrMismatchedHashAndPassword = errors.New("crypto/bcrypt: hashedPassword is not the hash of the given password") + +// The error returned from CompareHashAndPassword when a hash is too short to +// be a bcrypt hash. +var ErrHashTooShort = errors.New("crypto/bcrypt: hashedSecret too short to be a bcrypted password") + +// The error returned from CompareHashAndPassword when a hash was created with +// a bcrypt algorithm newer than this implementation. +type HashVersionTooNewError byte + +func (hv HashVersionTooNewError) Error() string { + return fmt.Sprintf("crypto/bcrypt: bcrypt algorithm version '%c' requested is newer than current version '%c'", byte(hv), majorVersion) +} + +// The error returned from CompareHashAndPassword when a hash starts with something other than '$' +type InvalidHashPrefixError byte + +func (ih InvalidHashPrefixError) Error() string { + return fmt.Sprintf("crypto/bcrypt: bcrypt hashes must start with '$', but hashedSecret started with '%c'", byte(ih)) +} + +type InvalidCostError int + +func (ic InvalidCostError) Error() string { + return fmt.Sprintf("crypto/bcrypt: cost %d is outside allowed range (%d,%d)", int(ic), int(MinCost), int(MaxCost)) +} + +const ( + majorVersion = '2' + minorVersion = 'a' + maxSaltSize = 16 + maxCryptedHashSize = 23 + encodedSaltSize = 22 + encodedHashSize = 31 + minHashSize = 59 +) + +// magicCipherData is an IV for the 64 Blowfish encryption calls in +// bcrypt(). It's the string "OrpheanBeholderScryDoubt" in big-endian bytes. +var magicCipherData = []byte{ + 0x4f, 0x72, 0x70, 0x68, + 0x65, 0x61, 0x6e, 0x42, + 0x65, 0x68, 0x6f, 0x6c, + 0x64, 0x65, 0x72, 0x53, + 0x63, 0x72, 0x79, 0x44, + 0x6f, 0x75, 0x62, 0x74, +} + +type hashed struct { + hash []byte + salt []byte + cost int // allowed range is MinCost to MaxCost + major byte + minor byte +} + +// GenerateFromPassword returns the bcrypt hash of the password at the given +// cost. If the cost given is less than MinCost, the cost will be set to +// DefaultCost, instead. Use CompareHashAndPassword, as defined in this package, +// to compare the returned hashed password with its cleartext version. +func GenerateFromPassword(password []byte, cost int) ([]byte, error) { + p, err := newFromPassword(password, cost) + if err != nil { + return nil, err + } + return p.Hash(), nil +} + +// CompareHashAndPassword compares a bcrypt hashed password with its possible +// plaintext equivalent. Returns nil on success, or an error on failure. +func CompareHashAndPassword(hashedPassword, password []byte) error { + p, err := newFromHash(hashedPassword) + if err != nil { + return err + } + + otherHash, err := bcrypt(password, p.cost, p.salt) + if err != nil { + return err + } + + otherP := &hashed{otherHash, p.salt, p.cost, p.major, p.minor} + if subtle.ConstantTimeCompare(p.Hash(), otherP.Hash()) == 1 { + return nil + } + + return ErrMismatchedHashAndPassword +} + +// Cost returns the hashing cost used to create the given hashed +// password. When, in the future, the hashing cost of a password system needs +// to be increased in order to adjust for greater computational power, this +// function allows one to establish which passwords need to be updated. +func Cost(hashedPassword []byte) (int, error) { + p, err := newFromHash(hashedPassword) + if err != nil { + return 0, err + } + return p.cost, nil +} + +func newFromPassword(password []byte, cost int) (*hashed, error) { + if cost < MinCost { + cost = DefaultCost + } + p := new(hashed) + p.major = majorVersion + p.minor = minorVersion + + err := checkCost(cost) + if err != nil { + return nil, err + } + p.cost = cost + + unencodedSalt := make([]byte, maxSaltSize) + _, err = io.ReadFull(rand.Reader, unencodedSalt) + if err != nil { + return nil, err + } + + p.salt = base64Encode(unencodedSalt) + hash, err := bcrypt(password, p.cost, p.salt) + if err != nil { + return nil, err + } + p.hash = hash + return p, err +} + +func newFromHash(hashedSecret []byte) (*hashed, error) { + if len(hashedSecret) < minHashSize { + return nil, ErrHashTooShort + } + p := new(hashed) + n, err := p.decodeVersion(hashedSecret) + if err != nil { + return nil, err + } + hashedSecret = hashedSecret[n:] + n, err = p.decodeCost(hashedSecret) + if err != nil { + return nil, err + } + hashedSecret = hashedSecret[n:] + + // The "+2" is here because we'll have to append at most 2 '=' to the salt + // when base64 decoding it in expensiveBlowfishSetup(). + p.salt = make([]byte, encodedSaltSize, encodedSaltSize+2) + copy(p.salt, hashedSecret[:encodedSaltSize]) + + hashedSecret = hashedSecret[encodedSaltSize:] + p.hash = make([]byte, len(hashedSecret)) + copy(p.hash, hashedSecret) + + return p, nil +} + +func bcrypt(password []byte, cost int, salt []byte) ([]byte, error) { + cipherData := make([]byte, len(magicCipherData)) + copy(cipherData, magicCipherData) + + c, err := expensiveBlowfishSetup(password, uint32(cost), salt) + if err != nil { + return nil, err + } + + for i := 0; i < 24; i += 8 { + for j := 0; j < 64; j++ { + c.Encrypt(cipherData[i:i+8], cipherData[i:i+8]) + } + } + + // Bug compatibility with C bcrypt implementations. We only encode 23 of + // the 24 bytes encrypted. + hsh := base64Encode(cipherData[:maxCryptedHashSize]) + return hsh, nil +} + +func expensiveBlowfishSetup(key []byte, cost uint32, salt []byte) (*blowfish.Cipher, error) { + csalt, err := base64Decode(salt) + if err != nil { + return nil, err + } + + // Bug compatibility with C bcrypt implementations. They use the trailing + // NULL in the key string during expansion. + // We copy the key to prevent changing the underlying array. + ckey := append(key[:len(key):len(key)], 0) + + c, err := blowfish.NewSaltedCipher(ckey, csalt) + if err != nil { + return nil, err + } + + var i, rounds uint64 + rounds = 1 << cost + for i = 0; i < rounds; i++ { + blowfish.ExpandKey(ckey, c) + blowfish.ExpandKey(csalt, c) + } + + return c, nil +} + +func (p *hashed) Hash() []byte { + arr := make([]byte, 60) + arr[0] = '$' + arr[1] = p.major + n := 2 + if p.minor != 0 { + arr[2] = p.minor + n = 3 + } + arr[n] = '$' + n++ + copy(arr[n:], []byte(fmt.Sprintf("%02d", p.cost))) + n += 2 + arr[n] = '$' + n++ + copy(arr[n:], p.salt) + n += encodedSaltSize + copy(arr[n:], p.hash) + n += encodedHashSize + return arr[:n] +} + +func (p *hashed) decodeVersion(sbytes []byte) (int, error) { + if sbytes[0] != '$' { + return -1, InvalidHashPrefixError(sbytes[0]) + } + if sbytes[1] > majorVersion { + return -1, HashVersionTooNewError(sbytes[1]) + } + p.major = sbytes[1] + n := 3 + if sbytes[2] != '$' { + p.minor = sbytes[2] + n++ + } + return n, nil +} + +// sbytes should begin where decodeVersion left off. +func (p *hashed) decodeCost(sbytes []byte) (int, error) { + cost, err := strconv.Atoi(string(sbytes[0:2])) + if err != nil { + return -1, err + } + err = checkCost(cost) + if err != nil { + return -1, err + } + p.cost = cost + return 3, nil +} + +func (p *hashed) String() string { + return fmt.Sprintf("&{hash: %#v, salt: %#v, cost: %d, major: %c, minor: %c}", string(p.hash), p.salt, p.cost, p.major, p.minor) +} + +func checkCost(cost int) error { + if cost < MinCost || cost > MaxCost { + return InvalidCostError(cost) + } + return nil +} diff --git a/vendor/golang.org/x/crypto/blowfish/block.go b/vendor/golang.org/x/crypto/blowfish/block.go new file mode 100644 index 00000000000..9d80f19521b --- /dev/null +++ b/vendor/golang.org/x/crypto/blowfish/block.go @@ -0,0 +1,159 @@ +// Copyright 2010 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package blowfish + +// getNextWord returns the next big-endian uint32 value from the byte slice +// at the given position in a circular manner, updating the position. +func getNextWord(b []byte, pos *int) uint32 { + var w uint32 + j := *pos + for i := 0; i < 4; i++ { + w = w<<8 | uint32(b[j]) + j++ + if j >= len(b) { + j = 0 + } + } + *pos = j + return w +} + +// ExpandKey performs a key expansion on the given *Cipher. Specifically, it +// performs the Blowfish algorithm's key schedule which sets up the *Cipher's +// pi and substitution tables for calls to Encrypt. This is used, primarily, +// by the bcrypt package to reuse the Blowfish key schedule during its +// set up. It's unlikely that you need to use this directly. +func ExpandKey(key []byte, c *Cipher) { + j := 0 + for i := 0; i < 18; i++ { + // Using inlined getNextWord for performance. + var d uint32 + for k := 0; k < 4; k++ { + d = d<<8 | uint32(key[j]) + j++ + if j >= len(key) { + j = 0 + } + } + c.p[i] ^= d + } + + var l, r uint32 + for i := 0; i < 18; i += 2 { + l, r = encryptBlock(l, r, c) + c.p[i], c.p[i+1] = l, r + } + + for i := 0; i < 256; i += 2 { + l, r = encryptBlock(l, r, c) + c.s0[i], c.s0[i+1] = l, r + } + for i := 0; i < 256; i += 2 { + l, r = encryptBlock(l, r, c) + c.s1[i], c.s1[i+1] = l, r + } + for i := 0; i < 256; i += 2 { + l, r = encryptBlock(l, r, c) + c.s2[i], c.s2[i+1] = l, r + } + for i := 0; i < 256; i += 2 { + l, r = encryptBlock(l, r, c) + c.s3[i], c.s3[i+1] = l, r + } +} + +// This is similar to ExpandKey, but folds the salt during the key +// schedule. While ExpandKey is essentially expandKeyWithSalt with an all-zero +// salt passed in, reusing ExpandKey turns out to be a place of inefficiency +// and specializing it here is useful. +func expandKeyWithSalt(key []byte, salt []byte, c *Cipher) { + j := 0 + for i := 0; i < 18; i++ { + c.p[i] ^= getNextWord(key, &j) + } + + j = 0 + var l, r uint32 + for i := 0; i < 18; i += 2 { + l ^= getNextWord(salt, &j) + r ^= getNextWord(salt, &j) + l, r = encryptBlock(l, r, c) + c.p[i], c.p[i+1] = l, r + } + + for i := 0; i < 256; i += 2 { + l ^= getNextWord(salt, &j) + r ^= getNextWord(salt, &j) + l, r = encryptBlock(l, r, c) + c.s0[i], c.s0[i+1] = l, r + } + + for i := 0; i < 256; i += 2 { + l ^= getNextWord(salt, &j) + r ^= getNextWord(salt, &j) + l, r = encryptBlock(l, r, c) + c.s1[i], c.s1[i+1] = l, r + } + + for i := 0; i < 256; i += 2 { + l ^= getNextWord(salt, &j) + r ^= getNextWord(salt, &j) + l, r = encryptBlock(l, r, c) + c.s2[i], c.s2[i+1] = l, r + } + + for i := 0; i < 256; i += 2 { + l ^= getNextWord(salt, &j) + r ^= getNextWord(salt, &j) + l, r = encryptBlock(l, r, c) + c.s3[i], c.s3[i+1] = l, r + } +} + +func encryptBlock(l, r uint32, c *Cipher) (uint32, uint32) { + xl, xr := l, r + xl ^= c.p[0] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[1] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[2] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[3] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[4] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[5] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[6] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[7] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[8] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[9] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[10] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[11] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[12] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[13] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[14] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[15] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[16] + xr ^= c.p[17] + return xr, xl +} + +func decryptBlock(l, r uint32, c *Cipher) (uint32, uint32) { + xl, xr := l, r + xl ^= c.p[17] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[16] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[15] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[14] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[13] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[12] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[11] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[10] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[9] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[8] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[7] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[6] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[5] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[4] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[3] + xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[2] + xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[1] + xr ^= c.p[0] + return xr, xl +} diff --git a/vendor/golang.org/x/crypto/blowfish/cipher.go b/vendor/golang.org/x/crypto/blowfish/cipher.go new file mode 100644 index 00000000000..2641dadd649 --- /dev/null +++ b/vendor/golang.org/x/crypto/blowfish/cipher.go @@ -0,0 +1,91 @@ +// Copyright 2010 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package blowfish implements Bruce Schneier's Blowfish encryption algorithm. +package blowfish // import "golang.org/x/crypto/blowfish" + +// The code is a port of Bruce Schneier's C implementation. +// See https://www.schneier.com/blowfish.html. + +import "strconv" + +// The Blowfish block size in bytes. +const BlockSize = 8 + +// A Cipher is an instance of Blowfish encryption using a particular key. +type Cipher struct { + p [18]uint32 + s0, s1, s2, s3 [256]uint32 +} + +type KeySizeError int + +func (k KeySizeError) Error() string { + return "crypto/blowfish: invalid key size " + strconv.Itoa(int(k)) +} + +// NewCipher creates and returns a Cipher. +// The key argument should be the Blowfish key, from 1 to 56 bytes. +func NewCipher(key []byte) (*Cipher, error) { + var result Cipher + if k := len(key); k < 1 || k > 56 { + return nil, KeySizeError(k) + } + initCipher(&result) + ExpandKey(key, &result) + return &result, nil +} + +// NewSaltedCipher creates a returns a Cipher that folds a salt into its key +// schedule. For most purposes, NewCipher, instead of NewSaltedCipher, is +// sufficient and desirable. For bcrypt compatibility, the key can be over 56 +// bytes. +func NewSaltedCipher(key, salt []byte) (*Cipher, error) { + if len(salt) == 0 { + return NewCipher(key) + } + var result Cipher + if k := len(key); k < 1 { + return nil, KeySizeError(k) + } + initCipher(&result) + expandKeyWithSalt(key, salt, &result) + return &result, nil +} + +// BlockSize returns the Blowfish block size, 8 bytes. +// It is necessary to satisfy the Block interface in the +// package "crypto/cipher". +func (c *Cipher) BlockSize() int { return BlockSize } + +// Encrypt encrypts the 8-byte buffer src using the key k +// and stores the result in dst. +// Note that for amounts of data larger than a block, +// it is not safe to just call Encrypt on successive blocks; +// instead, use an encryption mode like CBC (see crypto/cipher/cbc.go). +func (c *Cipher) Encrypt(dst, src []byte) { + l := uint32(src[0])<<24 | uint32(src[1])<<16 | uint32(src[2])<<8 | uint32(src[3]) + r := uint32(src[4])<<24 | uint32(src[5])<<16 | uint32(src[6])<<8 | uint32(src[7]) + l, r = encryptBlock(l, r, c) + dst[0], dst[1], dst[2], dst[3] = byte(l>>24), byte(l>>16), byte(l>>8), byte(l) + dst[4], dst[5], dst[6], dst[7] = byte(r>>24), byte(r>>16), byte(r>>8), byte(r) +} + +// Decrypt decrypts the 8-byte buffer src using the key k +// and stores the result in dst. +func (c *Cipher) Decrypt(dst, src []byte) { + l := uint32(src[0])<<24 | uint32(src[1])<<16 | uint32(src[2])<<8 | uint32(src[3]) + r := uint32(src[4])<<24 | uint32(src[5])<<16 | uint32(src[6])<<8 | uint32(src[7]) + l, r = decryptBlock(l, r, c) + dst[0], dst[1], dst[2], dst[3] = byte(l>>24), byte(l>>16), byte(l>>8), byte(l) + dst[4], dst[5], dst[6], dst[7] = byte(r>>24), byte(r>>16), byte(r>>8), byte(r) +} + +func initCipher(c *Cipher) { + copy(c.p[0:], p[0:]) + copy(c.s0[0:], s0[0:]) + copy(c.s1[0:], s1[0:]) + copy(c.s2[0:], s2[0:]) + copy(c.s3[0:], s3[0:]) +} diff --git a/vendor/golang.org/x/crypto/blowfish/const.go b/vendor/golang.org/x/crypto/blowfish/const.go new file mode 100644 index 00000000000..d04077595ab --- /dev/null +++ b/vendor/golang.org/x/crypto/blowfish/const.go @@ -0,0 +1,199 @@ +// Copyright 2010 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// The startup permutation array and substitution boxes. +// They are the hexadecimal digits of PI; see: +// https://www.schneier.com/code/constants.txt. + +package blowfish + +var s0 = [256]uint32{ + 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, 0xb8e1afed, 0x6a267e96, + 0xba7c9045, 0xf12c7f99, 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16, + 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, 0x0d95748f, 0x728eb658, + 0x718bcd58, 0x82154aee, 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013, + 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, 0x8e79dcb0, 0x603a180e, + 0x6c9e0e8b, 0xb01e8a3e, 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60, + 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, 0x55ca396a, 0x2aab10b6, + 0xb4cc5c34, 0x1141e8ce, 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a, + 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, 0xafd6ba33, 0x6c24cf5c, + 0x7a325381, 0x28958677, 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193, + 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, 0xef845d5d, 0xe98575b1, + 0xdc262302, 0xeb651b88, 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239, + 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, 0x21c66842, 0xf6e96c9a, + 0x670c9c61, 0xabd388f0, 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, + 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, 0xa1f1651d, 0x39af0176, + 0x66ca593e, 0x82430e88, 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe, + 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, 0x4ed3aa62, 0x363f7706, + 0x1bfedf72, 0x429b023d, 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b, + 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, 0xe3fe501a, 0xb6794c3b, + 0x976ce0bd, 0x04c006ba, 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463, + 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, 0x6dfc511f, 0x9b30952c, + 0xcc814544, 0xaf5ebd09, 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3, + 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, 0x5579c0bd, 0x1a60320a, + 0xd6a100c6, 0x402c7279, 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8, + 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, 0x323db5fa, 0xfd238760, + 0x53317b48, 0x3e00df82, 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db, + 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, 0x695b27b0, 0xbbca58c8, + 0xe1ffa35d, 0xb8f011a0, 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b, + 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, 0xe1ddf2da, 0xa4cb7e33, + 0x62fb1341, 0xcee4c6e8, 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4, + 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, 0xd08ed1d0, 0xafc725e0, + 0x8e3c5b2f, 0x8e7594b7, 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c, + 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, 0x2f2f2218, 0xbe0e1777, + 0xea752dfe, 0x8b021fa1, 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, + 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, 0x165fa266, 0x80957705, + 0x93cc7314, 0x211a1477, 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf, + 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, 0x00250e2d, 0x2071b35e, + 0x226800bb, 0x57b8e0af, 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, + 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, 0x83260376, 0x6295cfa9, + 0x11c81968, 0x4e734a41, 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915, + 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, 0x08ba6fb5, 0x571be91f, + 0xf296ec6b, 0x2a0dd915, 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, + 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a, +} + +var s1 = [256]uint32{ + 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, 0xad6ea6b0, 0x49a7df7d, + 0x9cee60b8, 0x8fedb266, 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, + 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, 0x3f54989a, 0x5b429d65, + 0x6b8fe4d6, 0x99f73fd6, 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1, + 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, 0x09686b3f, 0x3ebaefc9, + 0x3c971814, 0x6b6a70a1, 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, + 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, 0xb03ada37, 0xf0500c0d, + 0xf01c1f04, 0x0200b3ff, 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, + 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, 0x3ae5e581, 0x37c2dadc, + 0xc8b57634, 0x9af3dda7, 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, + 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, 0x4e548b38, 0x4f6db908, + 0x6f420d03, 0xf60a04bf, 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, + 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, 0x5512721f, 0x2e6b7124, + 0x501adde6, 0x9f84cd87, 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, + 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, 0xef1c1847, 0x3215d908, + 0xdd433b37, 0x24c2ba16, 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd, + 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, 0x043556f1, 0xd7a3c76b, + 0x3c11183b, 0x5924a509, 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, + 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, 0x771fe71c, 0x4e3d06fa, + 0x2965dcb9, 0x99e71d0f, 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a, + 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, 0xf2f74ea7, 0x361d2b3d, + 0x1939260f, 0x19c27960, 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, + 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, 0xc332ddef, 0xbe6c5aa5, + 0x65582185, 0x68ab9802, 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84, + 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, 0x13cca830, 0xeb61bd96, + 0x0334fe1e, 0xaa0363cf, 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, + 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, 0x648b1eaf, 0x19bdf0ca, + 0xa02369b9, 0x655abb50, 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, + 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, 0xf837889a, 0x97e32d77, + 0x11ed935f, 0x16681281, 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, + 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, 0xcdb30aeb, 0x532e3054, + 0x8fd948e4, 0x6dbc3128, 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73, + 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, 0x45eee2b6, 0xa3aaabea, + 0xdb6c4f15, 0xfacb4fd0, 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, + 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, 0xcf62a1f2, 0x5b8d2646, + 0xfc8883a0, 0xc1c7b6a3, 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285, + 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, 0x58428d2a, 0x0c55f5ea, + 0x1dadf43e, 0x233f7061, 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, + 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, 0xa6078084, 0x19f8509e, + 0xe8efd855, 0x61d99735, 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc, + 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, 0xdb73dbd3, 0x105588cd, + 0x675fda79, 0xe3674340, 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, + 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7, +} + +var s2 = [256]uint32{ + 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, 0x411520f7, 0x7602d4f7, + 0xbcf46b2e, 0xd4a20068, 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, + 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, 0x4d95fc1d, 0x96b591af, + 0x70f4ddd3, 0x66a02f45, 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504, + 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, 0x28507825, 0x530429f4, + 0x0a2c86da, 0xe9b66dfb, 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, + 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, 0xaace1e7c, 0xd3375fec, + 0xce78a399, 0x406b2a42, 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b, + 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, 0x3a6efa74, 0xdd5b4332, + 0x6841e7f7, 0xca7820fb, 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, + 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, 0x55a867bc, 0xa1159a58, + 0xcca92963, 0x99e1db33, 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, + 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, 0x95c11548, 0xe4c66d22, + 0x48c1133f, 0xc70f86dc, 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, + 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, 0x257b7834, 0x602a9c60, + 0xdff8e8a3, 0x1f636c1b, 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115, + 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, 0x85b2a20e, 0xe6ba0d99, + 0xde720c8c, 0x2da2f728, 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, + 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, 0x0a476341, 0x992eff74, + 0x3a6f6eab, 0xf4f8fd37, 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d, + 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, 0xf1290dc7, 0xcc00ffa3, + 0xb5390f92, 0x690fed0b, 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, + 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, 0x37392eb3, 0xcc115979, + 0x8026e297, 0xf42e312d, 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c, + 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, 0x1a6b1018, 0x11caedfa, + 0x3d25bdd8, 0xe2e1c3c9, 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, + 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, 0x9dbc8057, 0xf0f7c086, + 0x60787bf8, 0x6003604d, 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc, + 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, 0x77a057be, 0xbde8ae24, + 0x55464299, 0xbf582e61, 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2, + 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, 0x7aeb2661, 0x8b1ddf84, + 0x846a0e79, 0x915f95e2, 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c, + 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, 0xb77f19b6, 0xe0a9dc09, + 0x662d09a1, 0xc4324633, 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10, + 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, 0xdcb7da83, 0x573906fe, + 0xa1e2ce9b, 0x4fcd7f52, 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027, + 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, 0xf0177a28, 0xc0f586e0, + 0x006058aa, 0x30dc7d62, 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634, + 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, 0x6f05e409, 0x4b7c0188, + 0x39720a3d, 0x7c927c24, 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc, + 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, 0x1e50ef5e, 0xb161e6f8, + 0xa28514d9, 0x6c51133c, 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, + 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0, +} + +var s3 = [256]uint32{ + 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, 0x5cb0679e, 0x4fa33742, + 0xd3822740, 0x99bc9bbe, 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b, + 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, 0x5748ab2f, 0xbc946e79, + 0xc6a376d2, 0x6549c2c8, 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6, + 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, 0xa1fad5f0, 0x6a2d519a, + 0x63ef8ce2, 0x9a86ee22, 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4, + 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, 0x2826a2f9, 0xa73a3ae1, + 0x4ba99586, 0xef5562e9, 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59, + 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, 0xe990fd5a, 0x9e34d797, + 0x2cf0b7d9, 0x022b8b51, 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28, + 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, 0xe029ac71, 0xe019a5e6, + 0x47b0acfd, 0xed93fa9b, 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28, + 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, 0x15056dd4, 0x88f46dba, + 0x03a16125, 0x0564f0bd, 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a, + 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, 0x7533d928, 0xb155fdf5, + 0x03563482, 0x8aba3cbb, 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f, + 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, 0xea7a90c2, 0xfb3e7bce, + 0x5121ce64, 0x774fbe32, 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680, + 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, 0xb39a460a, 0x6445c0dd, + 0x586cdecf, 0x1c20c8ae, 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb, + 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, 0x72eacea8, 0xfa6484bb, + 0x8d6612ae, 0xbf3c6f47, 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370, + 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, 0x4040cb08, 0x4eb4e2cc, + 0x34d2466a, 0x0115af84, 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048, + 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, 0x611560b1, 0xe7933fdc, + 0xbb3a792b, 0x344525bd, 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9, + 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, 0x1a908749, 0xd44fbd9a, + 0xd0dadecb, 0xd50ada38, 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f, + 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, 0xbf97222c, 0x15e6fc2a, + 0x0f91fc71, 0x9b941525, 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1, + 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, 0xe0ec6e0e, 0x1698db3b, + 0x4c98a0be, 0x3278e964, 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e, + 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, 0xdf359f8d, 0x9b992f2e, + 0xe60b6f47, 0x0fe3f11d, 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f, + 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, 0xf523f357, 0xa6327623, + 0x93a83531, 0x56cccd02, 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc, + 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, 0xe6c6c7bd, 0x327a140a, + 0x45e1d006, 0xc3f27b9a, 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6, + 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, 0x53113ec0, 0x1640e3d3, + 0x38abbd60, 0x2547adf0, 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060, + 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, 0x1948c25c, 0x02fb8a8c, + 0x01c36ae4, 0xd6ebe1f9, 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f, + 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6, +} + +var p = [18]uint32{ + 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, 0xa4093822, 0x299f31d0, + 0x082efa98, 0xec4e6c89, 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, + 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, 0x9216d5d9, 0x8979fb1b, +}