Temp feat change user email enterprise (#22390)

api/.env.example

@@ -477,6 +477,8 @@ ENDPOINT_URL_TEMPLATE=http://localhost:5002/e/{hook_id}
 
 # Reset password token expiry minutes
 RESET_PASSWORD_TOKEN_EXPIRY_MINUTES=5
+CHANGE_EMAIL_TOKEN_EXPIRY_MINUTES=5
+OWNER_TRANSFER_TOKEN_EXPIRY_MINUTES=5
 
 CREATE_TIDB_SERVICE_JOB_ENABLED=false
 

api/configs/feature/__init__.py

@@ -31,6 +31,15 @@ class SecurityConfig(BaseSettings):
         description="Duration in minutes for which a password reset token remains valid",
         default=5,
     )
+    CHANGE_EMAIL_TOKEN_EXPIRY_MINUTES: PositiveInt = Field(
+        description="Duration in minutes for which a change email token remains valid",
+        default=5,
+    )
+
+    OWNER_TRANSFER_TOKEN_EXPIRY_MINUTES: PositiveInt = Field(
+        description="Duration in minutes for which a owner transfer token remains valid",
+        default=5,
+    )
 
     LOGIN_DISABLED: bool = Field(
         description="Whether to disable login checks",
@@ -580,6 +589,16 @@ class AuthConfig(BaseSettings):
         default=86400,
     )
 
+    CHANGE_EMAIL_LOCKOUT_DURATION: PositiveInt = Field(
+        description="Time (in seconds) a user must wait before retrying change email after exceeding the rate limit.",
+        default=86400,
+    )
+
+    OWNER_TRANSFER_LOCKOUT_DURATION: PositiveInt = Field(
+        description="Time (in seconds) a user must wait before retrying owner transfer after exceeding the rate limit.",
+        default=86400,
+    )
+
 
 class ModerationConfig(BaseSettings):
     """

api/controllers/console/auth/error.py

@@ -31,6 +31,18 @@ class PasswordResetRateLimitExceededError(BaseHTTPException):
     code = 429
 
 
+class EmailChangeRateLimitExceededError(BaseHTTPException):
+    error_code = "email_change_rate_limit_exceeded"
+    description = "Too many email change emails have been sent. Please try again in 1 minutes."
+    code = 429
+
+
+class OwnerTransferRateLimitExceededError(BaseHTTPException):
+    error_code = "owner_transfer_rate_limit_exceeded"
+    description = "Too many owner tansfer emails have been sent. Please try again in 1 minutes."
+    code = 429
+
+
 class EmailCodeError(BaseHTTPException):
     error_code = "email_code_error"
     description = "Email code is invalid or expired."
@@ -65,3 +77,39 @@ class EmailPasswordResetLimitError(BaseHTTPException):
     error_code = "email_password_reset_limit"
     description = "Too many failed password reset attempts. Please try again in 24 hours."
     code = 429
+
+
+class EmailChangeLimitError(BaseHTTPException):
+    error_code = "email_change_limit"
+    description = "Too many failed email change attempts. Please try again in 24 hours."
+    code = 429
+
+
+class EmailAlreadyInUseError(BaseHTTPException):
+    error_code = "email_already_in_use"
+    description = "A user with this email already exists."
+    code = 400
+
+
+class OwnerTransferLimitError(BaseHTTPException):
+    error_code = "owner_transfer_limit"
+    description = "Too many failed owner transfer attempts. Please try again in 24 hours."
+    code = 429
+
+
+class NotOwnerError(BaseHTTPException):
+    error_code = "not_owner"
+    description = "You are not the owner of the workspace."
+    code = 400
+
+
+class CannotTransferOwnerToSelfError(BaseHTTPException):
+    error_code = "cannot_transfer_owner_to_self"
+    description = "You cannot transfer ownership to yourself."
+    code = 400
+
+
+class MemberNotInTenantError(BaseHTTPException):
+    error_code = "member_not_in_tenant"
+    description = "The member is not in the workspace."
+    code = 400

api/controllers/console/workspace/account.py

@@ -4,10 +4,20 @@ import pytz
 from flask import request
 from flask_login import current_user
 from flask_restful import Resource, fields, marshal_with, reqparse
+from sqlalchemy import select
+from sqlalchemy.orm import Session
 
 from configs import dify_config
 from constants.languages import supported_language
 from controllers.console import api
+from controllers.console.auth.error import (
+    EmailAlreadyInUseError,
+    EmailChangeLimitError,
+    EmailCodeError,
+    InvalidEmailError,
+    InvalidTokenError,
+)
+from controllers.console.error import AccountNotFound, EmailSendIpLimitError
 from controllers.console.workspace.error import (
     AccountAlreadyInitedError,
     CurrentPasswordIncorrectError,
@@ -18,15 +28,17 @@ from controllers.console.workspace.error import (
 from controllers.console.wraps import (
     account_initialization_required,
     cloud_edition_billing_enabled,
+    enable_change_email,
     enterprise_license_required,
     only_edition_cloud,
     setup_required,
 )
 from extensions.ext_database import db
 from fields.member_fields import account_fields
-from libs.helper import TimestampField, timezone
+from libs.helper import TimestampField, email, extract_remote_ip, timezone
 from libs.login import login_required
 from models import AccountIntegrate, InvitationCode
+from models.account import Account
 from services.account_service import AccountService
 from services.billing_service import BillingService
 from services.errors.account import CurrentPasswordIncorrectError as ServiceCurrentPasswordIncorrectError
@@ -369,6 +381,137 @@ class EducationAutoCompleteApi(Resource):
         return BillingService.EducationIdentity.autocomplete(args["keywords"], args["page"], args["limit"])
 
 
+class ChangeEmailSendEmailApi(Resource):
+    @enable_change_email
+    @setup_required
+    @login_required
+    @account_initialization_required
+    def post(self):
+        parser = reqparse.RequestParser()
+        parser.add_argument("email", type=email, required=True, location="json")
+        parser.add_argument("language", type=str, required=False, location="json")
+        parser.add_argument("phase", type=str, required=False, location="json")
+        parser.add_argument("token", type=str, required=False, location="json")
+        args = parser.parse_args()
+
+        ip_address = extract_remote_ip(request)
+        if AccountService.is_email_send_ip_limit(ip_address):
+            raise EmailSendIpLimitError()
+
+        if args["language"] is not None and args["language"] == "zh-Hans":
+            language = "zh-Hans"
+        else:
+            language = "en-US"
+        account = None
+        user_email = args["email"]
+        if args["phase"] is not None and args["phase"] == "new_email":
+            if args["token"] is None:
+                raise InvalidTokenError()
+
+            reset_data = AccountService.get_change_email_data(args["token"])
+            if reset_data is None:
+                raise InvalidTokenError()
+            user_email = reset_data.get("email", "")
+
+            if user_email != current_user.email:
+                raise InvalidEmailError()
+        else:
+            with Session(db.engine) as session:
+                account = session.execute(select(Account).filter_by(email=args["email"])).scalar_one_or_none()
+            if account is None:
+                raise AccountNotFound()
+
+        token = AccountService.send_change_email_email(
+            account=account, email=args["email"], old_email=user_email, language=language, phase=args["phase"]
+        )
+        return {"result": "success", "data": token}
+
+
+class ChangeEmailCheckApi(Resource):
+    @enable_change_email
+    @setup_required
+    @login_required
+    @account_initialization_required
+    def post(self):
+        parser = reqparse.RequestParser()
+        parser.add_argument("email", type=email, required=True, location="json")
+        parser.add_argument("code", type=str, required=True, location="json")
+        parser.add_argument("token", type=str, required=True, nullable=False, location="json")
+        args = parser.parse_args()
+
+        user_email = args["email"]
+
+        is_change_email_error_rate_limit = AccountService.is_change_email_error_rate_limit(args["email"])
+        if is_change_email_error_rate_limit:
+            raise EmailChangeLimitError()
+
+        token_data = AccountService.get_change_email_data(args["token"])
+        if token_data is None:
+            raise InvalidTokenError()
+
+        if user_email != token_data.get("email"):
+            raise InvalidEmailError()
+
+        if args["code"] != token_data.get("code"):
+            AccountService.add_change_email_error_rate_limit(args["email"])
+            raise EmailCodeError()
+
+        # Verified, revoke the first token
+        AccountService.revoke_change_email_token(args["token"])
+
+        # Refresh token data by generating a new token
+        _, new_token = AccountService.generate_change_email_token(
+            user_email, code=args["code"], old_email=token_data.get("old_email"), additional_data={}
+        )
+
+        AccountService.reset_change_email_error_rate_limit(args["email"])
+        return {"is_valid": True, "email": token_data.get("email"), "token": new_token}
+
+
+class ChangeEmailResetApi(Resource):
+    @enable_change_email
+    @setup_required
+    @login_required
+    @account_initialization_required
+    @marshal_with(account_fields)
+    def post(self):
+        parser = reqparse.RequestParser()
+        parser.add_argument("new_email", type=email, required=True, location="json")
+        parser.add_argument("token", type=str, required=True, nullable=False, location="json")
+        args = parser.parse_args()
+
+        reset_data = AccountService.get_change_email_data(args["token"])
+        if not reset_data:
+            raise InvalidTokenError()
+        # Must use token in reset phase
+        if reset_data.get("phase", "") != "change_email":
+            raise InvalidTokenError()
+
+        AccountService.revoke_change_email_token(args["token"])
+
+        if not AccountService.check_email_unique(args["new_email"]):
+            raise EmailAlreadyInUseError()
+
+        old_email = reset_data.get("old_email", "")
+        if current_user.email != old_email:
+            raise AccountNotFound()
+
+        updated_account = AccountService.update_account(current_user, email=args["new_email"])
+
+        return updated_account
+
+
+class CheckEmailUnique(Resource):
+    @setup_required
+    def post(self):
+        parser = reqparse.RequestParser()
+        parser.add_argument("email", type=email, required=True, location="json")
+        args = parser.parse_args()
+        if not AccountService.check_email_unique(args["email"]):
+            raise EmailAlreadyInUseError()
+        return {"result": "success"}
+
+
 # Register API resources
 api.add_resource(AccountInitApi, "/account/init")
 api.add_resource(AccountProfileApi, "/account/profile")
@@ -385,5 +528,10 @@ api.add_resource(AccountDeleteUpdateFeedbackApi, "/account/delete/feedback")
 api.add_resource(EducationVerifyApi, "/account/education/verify")
 api.add_resource(EducationApi, "/account/education")
 api.add_resource(EducationAutoCompleteApi, "/account/education/autocomplete")
+# Change email
+api.add_resource(ChangeEmailSendEmailApi, "/account/change-email")
+api.add_resource(ChangeEmailCheckApi, "/account/change-email/validity")
+api.add_resource(ChangeEmailResetApi, "/account/change-email/reset")
+api.add_resource(CheckEmailUnique, "/account/change-email/check-email-unique")
 # api.add_resource(AccountEmailApi, '/account/email')
 # api.add_resource(AccountEmailVerifyApi, '/account/email-verify')

api/controllers/console/workspace/members.py

@@ -1,22 +1,34 @@
 from urllib import parse
 
+from flask import request
 from flask_login import current_user
 from flask_restful import Resource, abort, marshal_with, reqparse
 
 import services
 from configs import dify_config
 from controllers.console import api
-from controllers.console.error import WorkspaceMembersLimitExceeded
+from controllers.console.auth.error import (
+    CannotTransferOwnerToSelfError,
+    EmailCodeError,
+    InvalidEmailError,
+    InvalidTokenError,
+    MemberNotInTenantError,
+    NotOwnerError,
+    OwnerTransferLimitError,
+)
+from controllers.console.error import EmailSendIpLimitError, WorkspaceMembersLimitExceeded
 from controllers.console.wraps import (
     account_initialization_required,
     cloud_edition_billing_resource_check,
+    is_allow_transfer_owner,
     setup_required,
 )
 from extensions.ext_database import db
 from fields.member_fields import account_with_role_list_fields
+from libs.helper import extract_remote_ip
 from libs.login import login_required
 from models.account import Account, TenantAccountRole
-from services.account_service import RegisterService, TenantService
+from services.account_service import AccountService, RegisterService, TenantService
 from services.errors.account import AccountAlreadyInTenantError
 from services.feature_service import FeatureService
 
@@ -156,8 +168,148 @@ class DatasetOperatorMemberListApi(Resource):
         return {"result": "success", "accounts": members}, 200
 
 
+class SendOwnerTransferEmailApi(Resource):
+    """Send owner transfer email."""
+
+    @setup_required
+    @login_required
+    @account_initialization_required
+    @is_allow_transfer_owner
+    def post(self):
+        parser = reqparse.RequestParser()
+        parser.add_argument("language", type=str, required=False, location="json")
+        args = parser.parse_args()
+        ip_address = extract_remote_ip(request)
+        if AccountService.is_email_send_ip_limit(ip_address):
+            raise EmailSendIpLimitError()
+
+        # check if the current user is the owner of the workspace
+        if not TenantService.is_owner(current_user, current_user.current_tenant):
+            raise NotOwnerError()
+
+        if args["language"] is not None and args["language"] == "zh-Hans":
+            language = "zh-Hans"
+        else:
+            language = "en-US"
+
+        email = current_user.email
+
+        token = AccountService.send_owner_transfer_email(
+            account=current_user,
+            email=email,
+            language=language,
+            workspace_name=current_user.current_tenant.name,
+        )
+
+        return {"result": "success", "data": token}
+
+
+class OwnerTransferCheckApi(Resource):
+    @setup_required
+    @login_required
+    @account_initialization_required
+    @is_allow_transfer_owner
+    def post(self):
+        parser = reqparse.RequestParser()
+        parser.add_argument("code", type=str, required=True, location="json")
+        parser.add_argument("token", type=str, required=True, nullable=False, location="json")
+        args = parser.parse_args()
+        # check if the current user is the owner of the workspace
+        if not TenantService.is_owner(current_user, current_user.current_tenant):
+            raise NotOwnerError()
+
+        user_email = current_user.email
+
+        is_owner_transfer_error_rate_limit = AccountService.is_owner_transfer_error_rate_limit(user_email)
+        if is_owner_transfer_error_rate_limit:
+            raise OwnerTransferLimitError()
+
+        token_data = AccountService.get_owner_transfer_data(args["token"])
+        if token_data is None:
+            raise InvalidTokenError()
+
+        if user_email != token_data.get("email"):
+            raise InvalidEmailError()
+
+        if args["code"] != token_data.get("code"):
+            AccountService.add_owner_transfer_error_rate_limit(user_email)
+            raise EmailCodeError()
+
+        # Verified, revoke the first token
+        AccountService.revoke_owner_transfer_token(args["token"])
+
+        # Refresh token data by generating a new token
+        _, new_token = AccountService.generate_owner_transfer_token(user_email, code=args["code"], additional_data={})
+
+        AccountService.reset_owner_transfer_error_rate_limit(user_email)
+        return {"is_valid": True, "email": token_data.get("email"), "token": new_token}
+
+
+class OwnerTransfer(Resource):
+    @setup_required
+    @login_required
+    @account_initialization_required
+    @is_allow_transfer_owner
+    def post(self, member_id):
+        parser = reqparse.RequestParser()
+        parser.add_argument("token", type=str, required=True, nullable=False, location="json")
+        args = parser.parse_args()
+
+        # check if the current user is the owner of the workspace
+        if not TenantService.is_owner(current_user, current_user.current_tenant):
+            raise NotOwnerError()
+
+        if current_user.id == str(member_id):
+            raise CannotTransferOwnerToSelfError()
+
+        transfer_token_data = AccountService.get_owner_transfer_data(args["token"])
+        if not transfer_token_data:
+            print(transfer_token_data, "transfer_token_data")
+            raise InvalidTokenError()
+
+        if transfer_token_data.get("email") != current_user.email:
+            print(transfer_token_data.get("email"), current_user.email)
+            raise InvalidEmailError()
+
+        AccountService.revoke_owner_transfer_token(args["token"])
+
+        member = db.session.get(Account, str(member_id))
+        if not member:
+            abort(404)
+        else:
+            member_account = member
+        if not TenantService.is_member(member_account, current_user.current_tenant):
+            raise MemberNotInTenantError()
+
+        try:
+            assert member is not None, "Member not found"
+            TenantService.update_member_role(current_user.current_tenant, member, "owner", current_user)
+
+            AccountService.send_new_owner_transfer_notify_email(
+                account=member,
+                email=member.email,
+                workspace_name=current_user.current_tenant.name,
+            )
+
+            AccountService.send_old_owner_transfer_notify_email(
+                account=current_user,
+                email=current_user.email,
+                workspace_name=current_user.current_tenant.name,
+                new_owner_email=member.email,
+            )
+
+        except Exception as e:
+            raise ValueError(str(e))
+
+        return {"result": "success"}
+
+
 api.add_resource(MemberListApi, "/workspaces/current/members")
 api.add_resource(MemberInviteEmailApi, "/workspaces/current/members/invite-email")
 api.add_resource(MemberCancelInviteApi, "/workspaces/current/members/<uuid:member_id>")
 api.add_resource(MemberUpdateRoleApi, "/workspaces/current/members/<uuid:member_id>/update-role")
 api.add_resource(DatasetOperatorMemberListApi, "/workspaces/current/dataset-operators")
+# owner transfer
+api.add_resource(SendOwnerTransferEmailApi, "/workspaces/current/members/send-owner-transfer-confirm-email")
+api.add_resource(OwnerTransferCheckApi, "/workspaces/current/members/owner-transfer-check")
+api.add_resource(OwnerTransfer, "/workspaces/current/members/<uuid:member_id>/owner-transfer")

api/controllers/console/wraps.py

@@ -235,3 +235,29 @@ def email_password_login_enabled(view):
         abort(403)
 
     return decorated
+
+
+def enable_change_email(view):
+    @wraps(view)
+    def decorated(*args, **kwargs):
+        features = FeatureService.get_system_features()
+        if features.enable_change_email:
+            return view(*args, **kwargs)
+
+        # otherwise, return 403
+        abort(403)
+
+    return decorated
+
+
+def is_allow_transfer_owner(view):
+    @wraps(view)
+    def decorated(*args, **kwargs):
+        features = FeatureService.get_features(current_user.current_tenant_id)
+        if features.is_allow_transfer_workspace:
+            return view(*args, **kwargs)
+
+        # otherwise, return 403
+        abort(403)
+
+    return decorated

api/services/account_service.py

@@ -52,8 +52,14 @@ from services.errors.workspace import WorkSpaceNotAllowedCreateError, Workspaces
 from services.feature_service import FeatureService
 from tasks.delete_account_task import delete_account_task
 from tasks.mail_account_deletion_task import send_account_deletion_verification_code
+from tasks.mail_change_mail_task import send_change_mail_task
 from tasks.mail_email_code_login import send_email_code_login_mail_task
 from tasks.mail_invite_member_task import send_invite_member_mail_task
+from tasks.mail_owner_transfer_task import (
+    send_new_owner_transfer_notify_email_task,
+    send_old_owner_transfer_notify_email_task,
+    send_owner_transfer_confirm_task,
+)
 from tasks.mail_reset_password_task import send_reset_password_mail_task
 
 
@@ -75,8 +81,13 @@ class AccountService:
     email_code_account_deletion_rate_limiter = RateLimiter(
         prefix="email_code_account_deletion_rate_limit", max_attempts=1, time_window=60 * 1
     )
+    change_email_rate_limiter = RateLimiter(prefix="change_email_rate_limit", max_attempts=1, time_window=60 * 1)
+    owner_transfer_rate_limiter = RateLimiter(prefix="owner_transfer_rate_limit", max_attempts=1, time_window=60 * 1)
+
     LOGIN_MAX_ERROR_LIMITS = 5
     FORGOT_PASSWORD_MAX_ERROR_LIMITS = 5
+    CHANGE_EMAIL_MAX_ERROR_LIMITS = 5
+    OWNER_TRANSFER_MAX_ERROR_LIMITS = 5
 
     @staticmethod
     def _get_refresh_token_key(refresh_token: str) -> str:
@@ -419,6 +430,101 @@ class AccountService:
         cls.reset_password_rate_limiter.increment_rate_limit(account_email)
         return token
 
+    @classmethod
+    def send_change_email_email(
+        cls,
+        account: Optional[Account] = None,
+        email: Optional[str] = None,
+        old_email: Optional[str] = None,
+        language: Optional[str] = "en-US",
+        phase: Optional[str] = None,
+    ):
+        account_email = account.email if account else email
+        if account_email is None:
+            raise ValueError("Email must be provided.")
+
+        if cls.change_email_rate_limiter.is_rate_limited(account_email):
+            from controllers.console.auth.error import EmailChangeRateLimitExceededError
+
+            raise EmailChangeRateLimitExceededError()
+
+        code, token = cls.generate_change_email_token(account_email, account, old_email=old_email)
+
+        send_change_mail_task.delay(
+            language=language,
+            to=account_email,
+            code=code,
+            phase=phase,
+        )
+        cls.change_email_rate_limiter.increment_rate_limit(account_email)
+        return token
+
+    @classmethod
+    def send_owner_transfer_email(
+        cls,
+        account: Optional[Account] = None,
+        email: Optional[str] = None,
+        language: Optional[str] = "en-US",
+        workspace_name: Optional[str] = "",
+    ):
+        account_email = account.email if account else email
+        if account_email is None:
+            raise ValueError("Email must be provided.")
+
+        if cls.owner_transfer_rate_limiter.is_rate_limited(account_email):
+            from controllers.console.auth.error import OwnerTransferRateLimitExceededError
+
+            raise OwnerTransferRateLimitExceededError()
+
+        code, token = cls.generate_owner_transfer_token(account_email, account)
+
+        send_owner_transfer_confirm_task.delay(
+            language=language,
+            to=account_email,
+            code=code,
+            workspace=workspace_name,
+        )
+        cls.owner_transfer_rate_limiter.increment_rate_limit(account_email)
+        return token
+
+    @classmethod
+    def send_old_owner_transfer_notify_email(
+        cls,
+        account: Optional[Account] = None,
+        email: Optional[str] = None,
+        language: Optional[str] = "en-US",
+        workspace_name: Optional[str] = "",
+        new_owner_email: Optional[str] = "",
+    ):
+        account_email = account.email if account else email
+        if account_email is None:
+            raise ValueError("Email must be provided.")
+
+        send_old_owner_transfer_notify_email_task.delay(
+            language=language,
+            to=account_email,
+            workspace=workspace_name,
+            new_owner_email=new_owner_email,
+        )
+
+    @classmethod
+    def send_new_owner_transfer_notify_email(
+        cls,
+        account: Optional[Account] = None,
+        email: Optional[str] = None,
+        language: Optional[str] = "en-US",
+        workspace_name: Optional[str] = "",
+    ):
+        account_email = account.email if account else email
+        if account_email is None:
+            raise ValueError("Email must be provided.")
+
+        send_new_owner_transfer_notify_email_task.delay(
+            language=language,
+            to=account_email,
+            workspace=workspace_name,
+        )
+
     @classmethod
     def generate_reset_password_token(
         cls,
@@ -435,14 +541,64 @@ class AccountService:
         )
         return code, token
 
+    @classmethod
+    def generate_change_email_token(
+        cls,
+        email: str,
+        account: Optional[Account] = None,
+        code: Optional[str] = None,
+        old_email: Optional[str] = None,
+        additional_data: dict[str, Any] = {},
+    ):
+        if not code:
+            code = "".join([str(secrets.randbelow(exclusive_upper_bound=10)) for _ in range(6)])
+        additional_data["code"] = code
+        additional_data["old_email"] = old_email
+        token = TokenManager.generate_token(
+            account=account, email=email, token_type="change_email", additional_data=additional_data
+        )
+        return code, token
+
+    @classmethod
+    def generate_owner_transfer_token(
+        cls,
+        email: str,
+        account: Optional[Account] = None,
+        code: Optional[str] = None,
+        additional_data: dict[str, Any] = {},
+    ):
+        if not code:
+            code = "".join([str(secrets.randbelow(exclusive_upper_bound=10)) for _ in range(6)])
+        additional_data["code"] = code
+        token = TokenManager.generate_token(
+            account=account, email=email, token_type="owner_transfer", additional_data=additional_data
+        )
+        return code, token
+
     @classmethod
     def revoke_reset_password_token(cls, token: str):
         TokenManager.revoke_token(token, "reset_password")
 
+    @classmethod
+    def revoke_change_email_token(cls, token: str):
+        TokenManager.revoke_token(token, "change_email")
+
+    @classmethod
+    def revoke_owner_transfer_token(cls, token: str):
+        TokenManager.revoke_token(token, "owner_transfer")
+
     @classmethod
     def get_reset_password_data(cls, token: str) -> Optional[dict[str, Any]]:
         return TokenManager.get_token_data(token, "reset_password")
 
+    @classmethod
+    def get_change_email_data(cls, token: str) -> Optional[dict[str, Any]]:
+        return TokenManager.get_token_data(token, "change_email")
+
+    @classmethod
+    def get_owner_transfer_data(cls, token: str) -> Optional[dict[str, Any]]:
+        return TokenManager.get_token_data(token, "owner_transfer")
+
     @classmethod
     def send_email_code_login_email(
         cls, account: Optional[Account] = None, email: Optional[str] = None, language: Optional[str] = "en-US"
@@ -546,6 +702,56 @@ class AccountService:
         key = f"forgot_password_error_rate_limit:{email}"
         redis_client.delete(key)
 
+    @staticmethod
+    def add_change_email_error_rate_limit(email: str) -> None:
+        key = f"change_email_error_rate_limit:{email}"
+        count = redis_client.get(key)
+        if count is None:
+            count = 0
+        count = int(count) + 1
+        redis_client.setex(key, dify_config.CHANGE_EMAIL_LOCKOUT_DURATION, count)
+
+    @staticmethod
+    def is_change_email_error_rate_limit(email: str) -> bool:
+        key = f"change_email_error_rate_limit:{email}"
+        count = redis_client.get(key)
+        if count is None:
+            return False
+        count = int(count)
+        if count > AccountService.CHANGE_EMAIL_MAX_ERROR_LIMITS:
+            return True
+        return False
+
+    @staticmethod
+    def reset_change_email_error_rate_limit(email: str):
+        key = f"change_email_error_rate_limit:{email}"
+        redis_client.delete(key)
+
+    @staticmethod
+    def add_owner_transfer_error_rate_limit(email: str) -> None:
+        key = f"owner_transfer_error_rate_limit:{email}"
+        count = redis_client.get(key)
+        if count is None:
+            count = 0
+        count = int(count) + 1
+        redis_client.setex(key, dify_config.OWNER_TRANSFER_LOCKOUT_DURATION, count)
+
+    @staticmethod
+    def is_owner_transfer_error_rate_limit(email: str) -> bool:
+        key = f"owner_transfer_error_rate_limit:{email}"
+        count = redis_client.get(key)
+        if count is None:
+            return False
+        count = int(count)
+        if count > AccountService.OWNER_TRANSFER_MAX_ERROR_LIMITS:
+            return True
+        return False
+
+    @staticmethod
+    def reset_owner_transfer_error_rate_limit(email: str):
+        key = f"owner_transfer_error_rate_limit:{email}"
+        redis_client.delete(key)
+
     @staticmethod
     def is_email_send_ip_limit(ip_address: str):
         minute_key = f"email_send_ip_limit_minute:{ip_address}"
@@ -586,6 +792,10 @@ class AccountService:
 
         return False
 
+    @staticmethod
+    def check_email_unique(email: str) -> bool:
+        return db.session.query(Account).filter_by(email=email).first() is None
+
 
 class TenantService:
     @staticmethod
@@ -858,6 +1068,15 @@ class TenantService:
 
         return cast(dict, tenant.custom_config_dict)
 
+    @staticmethod
+    def is_owner(account: Account, tenant: Tenant) -> bool:
+        return TenantService.get_user_role(account, tenant) == TenantAccountRole.OWNER
+
+    @staticmethod
+    def is_member(account: Account, tenant: Tenant) -> bool:
+        """Check if the account is a member of the tenant"""
+        return TenantService.get_user_role(account, tenant) is not None
+
 
 class RegisterService:
     @classmethod

api/services/feature_service.py

@@ -123,7 +123,7 @@ class FeatureModel(BaseModel):
     dataset_operator_enabled: bool = False
     webapp_copyright_enabled: bool = False
     workspace_members: LicenseLimitationModel = LicenseLimitationModel(enabled=False, size=0, limit=0)
-
+    is_allow_transfer_workspace: bool = True
     # pydantic configs
     model_config = ConfigDict(protected_namespaces=())
 
@@ -149,6 +149,7 @@ class SystemFeatureModel(BaseModel):
     branding: BrandingModel = BrandingModel()
     webapp_auth: WebAppAuthModel = WebAppAuthModel()
     plugin_installation_permission: PluginInstallationPermissionModel = PluginInstallationPermissionModel()
+    enable_change_email: bool = True
 
 
 class FeatureService:
@@ -186,6 +187,7 @@ class FeatureService:
         if dify_config.ENTERPRISE_ENABLED:
             system_features.branding.enabled = True
             system_features.webapp_auth.enabled = True
+            system_features.enable_change_email = False
             cls._fulfill_params_from_enterprise(system_features)
 
         if dify_config.MARKETPLACE_ENABLED:
@@ -228,6 +230,8 @@ class FeatureService:
 
         if features.billing.subscription.plan != "sandbox":
             features.webapp_copyright_enabled = True
+        else:
+            features.is_allow_transfer_workspace = False
 
         if "members" in billing_info:
             features.members.size = billing_info["members"]["size"]

api/tasks/mail_change_mail_task.py

@@ -0,0 +1,78 @@
+import logging
+import time
+
+import click
+from celery import shared_task  # type: ignore
+from flask import render_template
+
+from extensions.ext_mail import mail
+from services.feature_service import FeatureService
+
+
+@shared_task(queue="mail")
+def send_change_mail_task(language: str, to: str, code: str, phase: str):
+    """
+    Async Send change email mail
+    :param language: Language in which the email should be sent (e.g., 'en', 'zh')
+    :param to: Recipient email address
+    :param code: Change email code
+    :param phase: Change email phase (new_email, old_email)
+    """
+    if not mail.is_inited():
+        return
+
+    logging.info(click.style("Start change email mail to {}".format(to), fg="green"))
+    start_at = time.perf_counter()
+
+    email_config = {
+        "zh-Hans": {
+            "old_email": {
+                "subject": "检测您现在的邮箱",
+                "template_with_brand": "change_mail_confirm_old_template_zh-CN.html",
+                "template_without_brand": "without-brand/change_mail_confirm_old_template_zh-CN.html",
+            },
+            "new_email": {
+                "subject": "确认您的邮箱地址变更",
+                "template_with_brand": "change_mail_confirm_new_template_zh-CN.html",
+                "template_without_brand": "without-brand/change_mail_confirm_new_template_zh-CN.html",
+            },
+        },
+        "en": {
+            "old_email": {
+                "subject": "Check your current email",
+                "template_with_brand": "change_mail_confirm_old_template_en-US.html",
+                "template_without_brand": "without-brand/change_mail_confirm_old_template_en-US.html",
+            },
+            "new_email": {
+                "subject": "Confirm your new email address",
+                "template_with_brand": "change_mail_confirm_new_template_en-US.html",
+                "template_without_brand": "without-brand/change_mail_confirm_new_template_en-US.html",
+            },
+        },
+    }
+
+    # send change email mail using different languages
+    try:
+        system_features = FeatureService.get_system_features()
+        lang_key = "zh-Hans" if language == "zh-Hans" else "en"
+
+        if phase not in ["old_email", "new_email"]:
+            raise ValueError("Invalid phase")
+
+        config = email_config[lang_key][phase]
+        subject = config["subject"]
+
+        if system_features.branding.enabled:
+            template = config["template_without_brand"]
+        else:
+            template = config["template_with_brand"]
+
+        html_content = render_template(template, to=to, code=code)
+        mail.send(to=to, subject=subject, html=html_content)
+
+        end_at = time.perf_counter()
+        logging.info(
+            click.style("Send change email mail to {} succeeded: latency: {}".format(to, end_at - start_at), fg="green")
+        )
+    except Exception:
+        logging.exception("Send change email mail to {} failed".format(to))

api/tasks/mail_owner_transfer_task.py

@@ -0,0 +1,152 @@
+import logging
+import time
+
+import click
+from celery import shared_task  # type: ignore
+from flask import render_template
+
+from extensions.ext_mail import mail
+from services.feature_service import FeatureService
+
+
+@shared_task(queue="mail")
+def send_owner_transfer_confirm_task(language: str, to: str, code: str, workspace: str):
+    """
+    Async Send owner transfer confirm mail
+    :param language: Language in which the email should be sent (e.g., 'en', 'zh')
+    :param to: Recipient email address
+    :param workspace: Workspace name
+    """
+    if not mail.is_inited():
+        return
+
+    logging.info(click.style("Start change email mail to {}".format(to), fg="green"))
+    start_at = time.perf_counter()
+    # send change email mail using different languages
+    try:
+        if language == "zh-Hans":
+            template = "transfer_workspace_owner_confirm_template_zh-CN.html"
+            system_features = FeatureService.get_system_features()
+            if system_features.branding.enabled:
+                template = "without-brand/transfer_workspace_owner_confirm_template_zh-CN.html"
+                html_content = render_template(template, to=to, code=code, WorkspaceName=workspace)
+                mail.send(to=to, subject="验证您转移工作空间所有权的请求", html=html_content)
+            else:
+                html_content = render_template(template, to=to, code=code, WorkspaceName=workspace)
+                mail.send(to=to, subject="验证您转移工作空间所有权的请求", html=html_content)
+        else:
+            template = "transfer_workspace_owner_confirm_template_en-US.html"
+            system_features = FeatureService.get_system_features()
+            if system_features.branding.enabled:
+                template = "without-brand/transfer_workspace_owner_confirm_template_en-US.html"
+                html_content = render_template(template, to=to, code=code, WorkspaceName=workspace)
+                mail.send(to=to, subject="Verify Your Request to Transfer Workspace Ownership", html=html_content)
+            else:
+                html_content = render_template(template, to=to, code=code, WorkspaceName=workspace)
+                mail.send(to=to, subject="Verify Your Request to Transfer Workspace Ownership", html=html_content)
+
+        end_at = time.perf_counter()
+        logging.info(
+            click.style(
+                "Send owner transfer confirm mail to {} succeeded: latency: {}".format(to, end_at - start_at),
+                fg="green",
+            )
+        )
+    except Exception:
+        logging.exception("owner transfer confirm email mail to {} failed".format(to))
+
+
+@shared_task(queue="mail")
+def send_old_owner_transfer_notify_email_task(language: str, to: str, workspace: str, new_owner_email: str):
+    """
+    Async Send owner transfer confirm mail
+    :param language: Language in which the email should be sent (e.g., 'en', 'zh')
+    :param to: Recipient email address
+    :param workspace: Workspace name
+    :param new_owner_email: New owner email
+    """
+    if not mail.is_inited():
+        return
+
+    logging.info(click.style("Start change email mail to {}".format(to), fg="green"))
+    start_at = time.perf_counter()
+    # send change email mail using different languages
+    try:
+        if language == "zh-Hans":
+            template = "transfer_workspace_old_owner_notify_template_zh-CN.html"
+            system_features = FeatureService.get_system_features()
+            if system_features.branding.enabled:
+                template = "without-brand/transfer_workspace_old_owner_notify_template_zh-CN.html"
+                html_content = render_template(template, to=to, WorkspaceName=workspace, NewOwnerEmail=new_owner_email)
+                mail.send(to=to, subject="工作区所有权已转移", html=html_content)
+            else:
+                html_content = render_template(template, to=to, WorkspaceName=workspace, NewOwnerEmail=new_owner_email)
+                mail.send(to=to, subject="工作区所有权已转移", html=html_content)
+        else:
+            template = "transfer_workspace_old_owner_notify_template_en-US.html"
+            system_features = FeatureService.get_system_features()
+            if system_features.branding.enabled:
+                template = "without-brand/transfer_workspace_old_owner_notify_template_en-US.html"
+                html_content = render_template(template, to=to, WorkspaceName=workspace, NewOwnerEmail=new_owner_email)
+                mail.send(to=to, subject="Workspace ownership has been transferred", html=html_content)
+            else:
+                html_content = render_template(template, to=to, WorkspaceName=workspace, NewOwnerEmail=new_owner_email)
+                mail.send(to=to, subject="Workspace ownership has been transferred", html=html_content)
+
+        end_at = time.perf_counter()
+        logging.info(
+            click.style(
+                "Send owner transfer confirm mail to {} succeeded: latency: {}".format(to, end_at - start_at),
+                fg="green",
+            )
+        )
+    except Exception:
+        logging.exception("owner transfer confirm email mail to {} failed".format(to))
+
+
+@shared_task(queue="mail")
+def send_new_owner_transfer_notify_email_task(language: str, to: str, workspace: str):
+    """
+    Async Send owner transfer confirm mail
+    :param language: Language in which the email should be sent (e.g., 'en', 'zh')
+    :param to: Recipient email address
+    :param code: Change email code
+    :param workspace: Workspace name
+    """
+    if not mail.is_inited():
+        return
+
+    logging.info(click.style("Start change email mail to {}".format(to), fg="green"))
+    start_at = time.perf_counter()
+    # send change email mail using different languages
+    try:
+        if language == "zh-Hans":
+            template = "transfer_workspace_new_owner_notify_template_zh-CN.html"
+            system_features = FeatureService.get_system_features()
+            if system_features.branding.enabled:
+                template = "without-brand/transfer_workspace_new_owner_notify_template_zh-CN.html"
+                html_content = render_template(template, to=to, WorkspaceName=workspace)
+                mail.send(to=to, subject=f"您现在是 {workspace} 的所有者", html=html_content)
+            else:
+                html_content = render_template(template, to=to, WorkspaceName=workspace)
+                mail.send(to=to, subject=f"您现在是 {workspace} 的所有者", html=html_content)
+        else:
+            template = "transfer_workspace_new_owner_notify_template_en-US.html"
+            system_features = FeatureService.get_system_features()
+            if system_features.branding.enabled:
+                template = "without-brand/transfer_workspace_new_owner_notify_template_en-US.html"
+                html_content = render_template(template, to=to, WorkspaceName=workspace)
+                mail.send(to=to, subject=f"You are now the owner of {workspace}", html=html_content)
+            else:
+                html_content = render_template(template, to=to, WorkspaceName=workspace)
+                mail.send(to=to, subject=f"You are now the owner of {workspace}", html=html_content)
+
+        end_at = time.perf_counter()
+        logging.info(
+            click.style(
+                "Send owner transfer confirm mail to {} succeeded: latency: {}".format(to, end_at - start_at),
+                fg="green",
+            )
+        )
+    except Exception:
+        logging.exception("owner transfer confirm email mail to {} failed".format(to))

api/templates/change_mail_confirm_new_template_en-US.html

@@ -0,0 +1,89 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+  <style>
+    body {
+      font-family: 'Arial', sans-serif;
+      line-height: 16pt;
+      color: #101828;
+      background-color: #e9ebf0;
+      margin: 0;
+      padding: 0;
+    }
+
+    .container {
+      width: 600px;
+      height: 360px;
+      margin: 40px auto;
+      padding: 36px 48px;
+      background-color: #fcfcfd;
+      border-radius: 16px;
+      border: 1px solid #ffffff;
+      box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+    }
+
+    .header {
+      margin-bottom: 24px;
+    }
+
+    .header img {
+      max-width: 100px;
+      height: auto;
+    }
+
+    .title {
+      font-weight: 600;
+      font-size: 24px;
+      line-height: 28.8px;
+    }
+
+    .description {
+      font-size: 13px;
+      line-height: 16px;
+      color: #676f83;
+      margin-top: 12px;
+    }
+
+    .code-content {
+      padding: 16px 32px;
+      text-align: center;
+      border-radius: 16px;
+      background-color: #f2f4f7;
+      margin: 16px auto;
+    }
+
+    .code {
+      line-height: 36px;
+      font-weight: 700;
+      font-size: 30px;
+    }
+
+    .tips {
+      line-height: 16px;
+      color: #676f83;
+      font-size: 13px;
+    }
+  </style>
+</head>
+
+<body>
+  <div class="container">
+    <div class="header">
+      <!-- Optional: Add a logo or a header image here -->
+      <img src="https://assets.dify.ai/images/logo.png" alt="Dify Logo" />
+    </div>
+    <p class="title">Confirm Your New Email Address</p>
+    <p class="description">You’re updating the email address linked to your Dify account.
+
+      To confirm this action, please use the verification code below.
+      This code will only be valid for the next 5 minutes:</p>
+    <div class="code-content">
+      <span class="code">{{code}}</span>
+    </div>
+    <p class="tips">If you didn’t make this request, please ignore this email or contact support immediately.</p>
+  </div>
+</body>
+
+</html>
+

api/templates/change_mail_confirm_new_template_zh-CN.html

@@ -0,0 +1,89 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+  <style>
+    body {
+      font-family: 'Arial', sans-serif;
+      line-height: 16pt;
+      color: #101828;
+      background-color: #e9ebf0;
+      margin: 0;
+      padding: 0;
+    }
+
+    .container {
+      width: 600px;
+      height: 360px;
+      margin: 40px auto;
+      padding: 36px 48px;
+      background-color: #fcfcfd;
+      border-radius: 16px;
+      border: 1px solid #ffffff;
+      box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+    }
+
+    .header {
+      margin-bottom: 24px;
+    }
+
+    .header img {
+      max-width: 100px;
+      height: auto;
+    }
+
+    .title {
+      font-weight: 600;
+      font-size: 24px;
+      line-height: 28.8px;
+    }
+
+    .description {
+      font-size: 13px;
+      line-height: 16px;
+      color: #676f83;
+      margin-top: 12px;
+    }
+
+    .code-content {
+      padding: 16px 32px;
+      text-align: center;
+      border-radius: 16px;
+      background-color: #f2f4f7;
+      margin: 16px auto;
+    }
+
+    .code {
+      line-height: 36px;
+      font-weight: 700;
+      font-size: 30px;
+    }
+
+    .tips {
+      line-height: 16px;
+      color: #676f83;
+      font-size: 13px;
+    }
+  </style>
+</head>
+
+<body>
+  <div class="container">
+    <div class="header">
+      <!-- Optional: Add a logo or a header image here -->
+      <img src="https://assets.dify.ai/images/logo.png" alt="Dify Logo" />
+    </div>
+    <p class="title">确认您的邮箱地址变更</p>
+    <p class="description">您正在更新与您的 Dify 账户关联的邮箱地址。
+
+      为了确认此操作，请使用以下验证码。
+      此验证码仅在接下来的5分钟内有效：</p>
+    <div class="code-content">
+      <span class="code">{{code}}</span>
+    </div>
+    <p class="tips">如果您没有请求变更邮箱地址，请忽略此邮件或立即联系支持。</p>
+  </div>
+</body>
+
+</html>
+

api/templates/change_mail_confirm_old_template_en-US.html

@@ -0,0 +1,89 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+  <style>
+    body {
+      font-family: 'Arial', sans-serif;
+      line-height: 16pt;
+      color: #101828;
+      background-color: #e9ebf0;
+      margin: 0;
+      padding: 0;
+    }
+
+    .container {
+      width: 600px;
+      height: 360px;
+      margin: 40px auto;
+      padding: 36px 48px;
+      background-color: #fcfcfd;
+      border-radius: 16px;
+      border: 1px solid #ffffff;
+      box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+    }
+
+    .header {
+      margin-bottom: 24px;
+    }
+
+    .header img {
+      max-width: 100px;
+      height: auto;
+    }
+
+    .title {
+      font-weight: 600;
+      font-size: 24px;
+      line-height: 28.8px;
+    }
+
+    .description {
+      font-size: 13px;
+      line-height: 16px;
+      color: #676f83;
+      margin-top: 12px;
+    }
+
+    .code-content {
+      padding: 16px 32px;
+      text-align: center;
+      border-radius: 16px;
+      background-color: #f2f4f7;
+      margin: 16px auto;
+    }
+
+    .code {
+      line-height: 36px;
+      font-weight: 700;
+      font-size: 30px;
+    }
+
+    .tips {
+      line-height: 16px;
+      color: #676f83;
+      font-size: 13px;
+    }
+  </style>
+</head>
+
+<body>
+  <div class="container">
+    <div class="header">
+      <!-- Optional: Add a logo or a header image here -->
+      <img src="https://assets.dify.ai/images/logo.png" alt="Dify Logo" />
+    </div>
+    <p class="title">Verify Your Request to Change Email</p>
+    <p class="description">We received a request to change the email address associated with your Dify account.
+
+      To confirm this action, please use the verification code below.
+      This code will only be valid for the next 5 minutes:</p>
+    <div class="code-content">
+      <span class="code">{{code}}</span>
+    </div>
+    <p class="tips">If you didn’t make this request, please ignore this email or contact support immediately.</p>
+  </div>
+</body>
+
+</html>
+

api/templates/change_mail_confirm_old_template_zh-CN.html

@@ -0,0 +1,89 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+  <style>
+    body {
+      font-family: 'Arial', sans-serif;
+      line-height: 16pt;
+      color: #101828;
+      background-color: #e9ebf0;
+      margin: 0;
+      padding: 0;
+    }
+
+    .container {
+      width: 600px;
+      height: 360px;
+      margin: 40px auto;
+      padding: 36px 48px;
+      background-color: #fcfcfd;
+      border-radius: 16px;
+      border: 1px solid #ffffff;
+      box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+    }
+
+    .header {
+      margin-bottom: 24px;
+    }
+
+    .header img {
+      max-width: 100px;
+      height: auto;
+    }
+
+    .title {
+      font-weight: 600;
+      font-size: 24px;
+      line-height: 28.8px;
+    }
+
+    .description {
+      font-size: 13px;
+      line-height: 16px;
+      color: #676f83;
+      margin-top: 12px;
+    }
+
+    .code-content {
+      padding: 16px 32px;
+      text-align: center;
+      border-radius: 16px;
+      background-color: #f2f4f7;
+      margin: 16px auto;
+    }
+
+    .code {
+      line-height: 36px;
+      font-weight: 700;
+      font-size: 30px;
+    }
+
+    .tips {
+      line-height: 16px;
+      color: #676f83;
+      font-size: 13px;
+    }
+  </style>
+</head>
+
+<body>
+  <div class="container">
+    <div class="header">
+      <!-- Optional: Add a logo or a header image here -->
+      <img src="https://assets.dify.ai/images/logo.png" alt="Dify Logo" />
+    </div>
+    <p class="title">验证您的邮箱变更请求</p>
+    <p class="description"> 我们收到了一个变更您 Dify 账户关联邮箱地址的请求。
+
+      我们收到了一个变更您 Dify 账户关联邮箱地址的请求。
+      此验证码仅在接下来的5分钟内有效：</p>
+    <div class="code-content">
+      <span class="code">{{code}}</span>
+    </div>
+    <p class="tips">如果您没有请求变更邮箱地址，请忽略此邮件或立即联系支持。</p>
+  </div>
+</body>
+
+</html>
+

api/templates/transfer_workspace_new_owner_notify_template_en-US.html

@@ -0,0 +1,86 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <div class="header">
+            <!-- Optional: Add a logo or a header image here -->
+            <img src="https://assets.dify.ai/images/logo.png" alt="Dify Logo" />
+        </div>
+        <p class="title">You are now the owner of {{WorkspaceName}}</p>
+        <p class="description">You have been assigned as the new owner of the workspace "{{WorkspaceName}}".
+
+            As the new owner, you now have full administrative privileges for this workspace.
+
+            If you have any questions, please contact support@dify.ai.</p>
+
+    </div>
+</body>
+
+</html>

api/templates/transfer_workspace_new_owner_notify_template_zh-CN.html

@@ -0,0 +1,86 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <div class="header">
+            <!-- Optional: Add a logo or a header image here -->
+            <img src="https://assets.dify.ai/images/logo.png" alt="Dify Logo" />
+        </div>
+        <p class="title">您现在是 {{WorkspaceName}} 的所有者</p>
+        <p class="description">您已被分配为工作空间“{{WorkspaceName}}”的新所有者。
+
+            作为新所有者，您现在对该工作空间拥有完全的管理权限。
+
+            如果您有任何问题，请联系support@dify.ai。</p>
+
+    </div>
+</body>
+
+</html>

api/templates/transfer_workspace_old_owner_notify_template_en-US.html

@@ -0,0 +1,88 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <div class="header">
+            <!-- Optional: Add a logo or a header image here -->
+            <img src="https://assets.dify.ai/images/logo.png" alt="Dify Logo" />
+        </div>
+        <p class="title">Workspace ownership has been transferred</p>
+        <p class="description">You have successfully transferred ownership of the workspace "{{WorkspaceName}}" to
+            {{NewOwnerEmail}}.
+
+            You no longer have owner privileges for this workspace. Your access level has been changed to Admin.
+
+            If you did not initiate this transfer or have concerns about this change, please contact support@dify.ai
+            immediately.</p>
+
+    </div>
+</body>
+
+</html>

api/templates/transfer_workspace_old_owner_notify_template_zh-CN.html

@@ -0,0 +1,86 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <div class="header">
+            <!-- Optional: Add a logo or a header image here -->
+            <img src="https://assets.dify.ai/images/logo.png" alt="Dify Logo" />
+        </div>
+        <p class="title">工作区所有权已转移</p>
+        <p class="description">您已成功将工作空间“{{WorkspaceName}}”的所有权转移给{{NewOwnerEmail}}。
+
+            您不再拥有此工作空间的拥有者权限。您的访问级别已更改为管理员。
+
+            如果您没有发起此转移或对此变更有任何疑问，请立即联系support@dify.ai。</p>
+
+    </div>
+</body>
+
+</html>

api/templates/transfer_workspace_owner_confirm_template_en-US.html

@@ -0,0 +1,91 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+  <style>
+    body {
+      font-family: 'Arial', sans-serif;
+      line-height: 16pt;
+      color: #101828;
+      background-color: #e9ebf0;
+      margin: 0;
+      padding: 0;
+    }
+
+    .container {
+      width: 600px;
+      height: 360px;
+      margin: 40px auto;
+      padding: 36px 48px;
+      background-color: #fcfcfd;
+      border-radius: 16px;
+      border: 1px solid #ffffff;
+      box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+    }
+
+    .header {
+      margin-bottom: 24px;
+    }
+
+    .header img {
+      max-width: 100px;
+      height: auto;
+    }
+
+    .title {
+      font-weight: 600;
+      font-size: 24px;
+      line-height: 28.8px;
+    }
+
+    .description {
+      font-size: 13px;
+      line-height: 16px;
+      color: #676f83;
+      margin-top: 12px;
+    }
+
+    .code-content {
+      padding: 16px 32px;
+      text-align: center;
+      border-radius: 16px;
+      background-color: #f2f4f7;
+      margin: 16px auto;
+    }
+
+    .code {
+      line-height: 36px;
+      font-weight: 700;
+      font-size: 30px;
+    }
+
+    .tips {
+      line-height: 16px;
+      color: #676f83;
+      font-size: 13px;
+    }
+  </style>
+</head>
+
+<body>
+  <div class="container">
+    <div class="header">
+      <!-- Optional: Add a logo or a header image here -->
+      <img src="https://assets.dify.ai/images/logo.png" alt="Dify Logo" />
+    </div>
+    <p class="title">Verify Your Request to Transfer Workspace Ownership</p>
+    <p class="description">We received a request to transfer ownership of your workspace “{{WorkspaceName}}”.
+
+      To confirm this action, please use the verification code below.
+      This code will only be valid for the next 5 minutes:</p>
+    <div class="code-content">
+      <span class="code">{{code}}</span>
+    </div>
+    <p class="tips">Please note: The ownership transfer will take effect immediately once confirmed and cannot be
+      undone.
+      You’ll become a admin member, and the new owner will have full control of the workspace.If you didn’t make this
+      request, please ignore this email or contact support immediately.</p>
+  </div>
+</body>
+
+</html>

api/templates/transfer_workspace_owner_confirm_template_zh-CN.html

@@ -0,0 +1,90 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+  <style>
+    body {
+      font-family: 'Arial', sans-serif;
+      line-height: 16pt;
+      color: #101828;
+      background-color: #e9ebf0;
+      margin: 0;
+      padding: 0;
+    }
+
+    .container {
+      width: 600px;
+      height: 360px;
+      margin: 40px auto;
+      padding: 36px 48px;
+      background-color: #fcfcfd;
+      border-radius: 16px;
+      border: 1px solid #ffffff;
+      box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+    }
+
+    .header {
+      margin-bottom: 24px;
+    }
+
+    .header img {
+      max-width: 100px;
+      height: auto;
+    }
+
+    .title {
+      font-weight: 600;
+      font-size: 24px;
+      line-height: 28.8px;
+    }
+
+    .description {
+      font-size: 13px;
+      line-height: 16px;
+      color: #676f83;
+      margin-top: 12px;
+    }
+
+    .code-content {
+      padding: 16px 32px;
+      text-align: center;
+      border-radius: 16px;
+      background-color: #f2f4f7;
+      margin: 16px auto;
+    }
+
+    .code {
+      line-height: 36px;
+      font-weight: 700;
+      font-size: 30px;
+    }
+
+    .tips {
+      line-height: 16px;
+      color: #676f83;
+      font-size: 13px;
+    }
+  </style>
+</head>
+
+<body>
+  <div class="container">
+    <div class="header">
+      <!-- Optional: Add a logo or a header image here -->
+      <img src="https://assets.dify.ai/images/logo.png" alt="Dify Logo" />
+    </div>
+    <p class="title">验证您的工作空间所有权转移请求</p>
+    <p class="description">我们收到了将您的工作空间“{{WorkspaceName}}”的所有权转移的请求。
+
+      为了确认此操作，请使用以下验证码。
+      此验证码仅在5分钟内有效：</p>
+    <div class="code-content">
+      <span class="code">{{code}}</span>
+    </div>
+    <p class="tips">请注意：所有权转移一旦确认将立即生效且无法撤销。您将成为管理员成员，新的所有者将拥有工作空间的完全控制权。
+      如果您没有发起此请求，请忽略此邮件或立即联系客服。
+    </p>
+  </div>
+</body>
+
+</html>

api/templates/without-brand/change_mail_confirm_new_template_en-US.html

@@ -0,0 +1,85 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <p class="title">Confirm Your New Email Address</p>
+        <p class="description">You’re updating the email address linked to your Dify account.
+
+            To confirm this action, please use the verification code below.
+            This code will only be valid for the next 5 minutes:</p>
+        <div class="code-content">
+            <span class="code">{{code}}</span>
+        </div>
+        <p class="tips">If you didn’t make this request, please ignore this email or contact support immediately.</p>
+    </div>
+</body>
+
+</html>
+

api/templates/without-brand/change_mail_confirm_new_template_zh-CN.html

@@ -0,0 +1,85 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <p class="title">确认您的邮箱地址变更</p>
+        <p class="description">您正在更新与您的 Dify 账户关联的邮箱地址。
+
+            为了确认此操作，请使用以下验证码。
+            此验证码仅在接下来的5分钟内有效：</p>
+        <div class="code-content">
+            <span class="code">{{code}}</span>
+        </div>
+        <p class="tips">如果您没有请求变更邮箱地址，请忽略此邮件或立即联系支持。</p>
+    </div>
+</body>
+
+</html>
+

api/templates/without-brand/change_mail_confirm_old_template_en-US.html

@@ -0,0 +1,85 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <p class="title">Verify Your Request to Change Email</p>
+        <p class="description">We received a request to change the email address associated with your Dify account.
+
+            To confirm this action, please use the verification code below.
+            This code will only be valid for the next 5 minutes:</p>
+        <div class="code-content">
+            <span class="code">{{code}}</span>
+        </div>
+        <p class="tips">If you didn’t make this request, please ignore this email or contact support immediately.</p>
+    </div>
+</body>
+
+</html>
+

api/templates/without-brand/change_mail_confirm_old_template_zh-CN.html

@@ -0,0 +1,85 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <p class="title">验证您的邮箱变更请求</p>
+        <p class="description"> 我们收到了一个变更您 Dify 账户关联邮箱地址的请求。
+
+            为了确认此操作，请使用以下验证码。
+            此验证码仅在接下来的5分钟内有效：</p>
+        <div class="code-content">
+            <span class="code">{{code}}</span>
+        </div>
+        <p class="tips">如果您没有请求变更邮箱地址，请忽略此邮件或立即联系支持。</p>
+    </div>
+</body>
+
+</html>
+

api/templates/without-brand/transfer_workspace_new_owner_notify_template_en-US.html

@@ -0,0 +1,81 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <p class="title">You are now the owner of {{WorkspaceName}}</p>
+        <p class="description">You have been assigned as the new owner of the workspace "{{WorkspaceName}}".
+
+            As the new owner, you now have full administrative privileges for this workspace.
+
+            If you have any questions, please contact support@dify.ai.</p>
+    </div>
+</body>
+
+</html>

api/templates/without-brand/transfer_workspace_new_owner_notify_template_zh-CN.html

@@ -0,0 +1,81 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <p class="title">您现在是 {{WorkspaceName}} 的所有者</p>
+        <p class="description">您已被分配为工作空间“{{WorkspaceName}}”的新所有者。
+
+            作为新所有者，您现在对该工作空间拥有完全的管理权限。
+
+            如果您有任何问题，请联系support@dify.ai。</p>
+    </div>
+</body>
+
+</html>

api/templates/without-brand/transfer_workspace_old_owner_notify_template_en-US.html

@@ -0,0 +1,83 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <p class="title">Workspace ownership has been transferred</p>
+        <p class="description">You have successfully transferred ownership of the workspace "{{WorkspaceName}}" to
+            {{NewOwnerEmail}}.
+
+            You no longer have owner privileges for this workspace. Your access level has been changed to Admin.
+
+            If you did not initiate this transfer or have concerns about this change, please contact support@dify.ai
+            immediately.</p>
+    </div>
+</body>
+
+</html>

api/templates/without-brand/transfer_workspace_old_owner_notify_template_zh-CN.html

@@ -0,0 +1,81 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <p class="title">工作区所有权已转移</p>
+        <p class="description">您已成功将工作空间“{{WorkspaceName}}”的所有权转移给{{NewOwnerEmail}}。
+
+            您不再拥有此工作空间的拥有者权限。您的访问级别已更改为管理员。
+
+            如果您没有发起此转移或对此变更有任何疑问，请立即联系support@dify.ai。</p>
+    </div>
+</body>
+
+</html>

api/templates/without-brand/transfer_workspace_owner_confirm_template_en-US.html

@@ -0,0 +1,88 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <p class="title">Verify Your Request to Transfer Workspace Ownership</p>
+        <p class="description">We received a request to transfer ownership of your workspace “{{WorkspaceName}}”.
+
+            To confirm this action, please use the verification code below.
+            This code will only be valid for the next 5 minutes:</p>
+        <div class="code-content">
+            <span class="code">{{code}}</span>
+        </div>
+        <p class="tips">Please note: The ownership transfer will take effect immediately once confirmed and cannot be
+            undone.
+            You’ll become a admin member, and the new owner will have full control of the workspace.If you didn’t make
+            this
+            request, please ignore this email or contact support immediately.</p>
+    </div>
+</body>
+
+</html>

api/templates/without-brand/transfer_workspace_owner_confirm_template_zh-CN.html

@@ -0,0 +1,87 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            line-height: 16pt;
+            color: #101828;
+            background-color: #e9ebf0;
+            margin: 0;
+            padding: 0;
+        }
+
+        .container {
+            width: 600px;
+            height: 360px;
+            margin: 40px auto;
+            padding: 36px 48px;
+            background-color: #fcfcfd;
+            border-radius: 16px;
+            border: 1px solid #ffffff;
+            box-shadow: 0 2px 4px -2px rgba(9, 9, 11, 0.08);
+        }
+
+        .header {
+            margin-bottom: 24px;
+        }
+
+        .header img {
+            max-width: 100px;
+            height: auto;
+        }
+
+        .title {
+            font-weight: 600;
+            font-size: 24px;
+            line-height: 28.8px;
+        }
+
+        .description {
+            font-size: 13px;
+            line-height: 16px;
+            color: #676f83;
+            margin-top: 12px;
+        }
+
+        .code-content {
+            padding: 16px 32px;
+            text-align: center;
+            border-radius: 16px;
+            background-color: #f2f4f7;
+            margin: 16px auto;
+        }
+
+        .code {
+            line-height: 36px;
+            font-weight: 700;
+            font-size: 30px;
+        }
+
+        .tips {
+            line-height: 16px;
+            color: #676f83;
+            font-size: 13px;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <p class="title">验证您的工作空间所有权转移请求</p>
+        <p class="description">我们收到了将您的工作空间“{{WorkspaceName}}”的所有权转移的请求。
+
+            为了确认此操作，请使用以下验证码。
+            此验证码仅在5分钟内有效：</p>
+        <div class="code-content">
+            <span class="code">{{code}}</span>
+        </div>
+        <p class="tips">请注意：所有权转移一旦确认将立即生效且无法撤销。
+
+            您将成为管理员成员，新的所有者将拥有工作空间的完全控制权。如果您没有发起此请求，请忽略此邮件或立即联系客服。
+        </p>
+    </div>
+</body>
+
+</html>

api/tests/integration_tests/.env.example

@@ -203,6 +203,8 @@ ENDPOINT_URL_TEMPLATE=http://localhost:5002/e/{hook_id}
 
 # Reset password token expiry minutes
 RESET_PASSWORD_TOKEN_EXPIRY_MINUTES=5
+CHANGE_EMAIL_TOKEN_EXPIRY_MINUTES=5
+OWNER_TRANSFER_TOKEN_EXPIRY_MINUTES=5
 
 CREATE_TIDB_SERVICE_JOB_ENABLED=false
 

docker/.env.example

@@ -763,6 +763,8 @@ INVITE_EXPIRY_HOURS=72
 
 # Reset password token valid time (minutes),
 RESET_PASSWORD_TOKEN_EXPIRY_MINUTES=5
+CHANGE_EMAIL_TOKEN_EXPIRY_MINUTES=5
+OWNER_TRANSFER_TOKEN_EXPIRY_MINUTES=5
 
 # The sandbox service endpoint.
 CODE_EXECUTION_ENDPOINT=http://sandbox:8194

docker/docker-compose.yaml

@@ -332,6 +332,8 @@ x-shared-env: &shared-api-worker-env
   INDEXING_MAX_SEGMENTATION_TOKENS_LENGTH: ${INDEXING_MAX_SEGMENTATION_TOKENS_LENGTH:-4000}
   INVITE_EXPIRY_HOURS: ${INVITE_EXPIRY_HOURS:-72}
   RESET_PASSWORD_TOKEN_EXPIRY_MINUTES: ${RESET_PASSWORD_TOKEN_EXPIRY_MINUTES:-5}
+  CHANGE_EMAIL_TOKEN_EXPIRY_MINUTES: ${CHANGE_EMAIL_TOKEN_EXPIRY_MINUTES:-5}
+  OWNER_TRANSFER_TOKEN_EXPIRY_MINUTES: ${OWNER_TRANSFER_TOKEN_EXPIRY_MINUTES:-5}
   CODE_EXECUTION_ENDPOINT: ${CODE_EXECUTION_ENDPOINT:-http://sandbox:8194}
   CODE_EXECUTION_API_KEY: ${CODE_EXECUTION_API_KEY:-dify-sandbox}
   CODE_MAX_NUMBER: ${CODE_MAX_NUMBER:-9223372036854775807}