MaysWind
115 lines
3.9 KiB
Go
115 lines
3.9 KiB
Go
package nextcloud
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import (
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"encoding/json"
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"net/http"
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"github.com/mayswind/ezbookkeeping/pkg/auth/oauth2/data"
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"github.com/mayswind/ezbookkeeping/pkg/auth/oauth2/provider"
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"github.com/mayswind/ezbookkeeping/pkg/auth/oauth2/provider/common"
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"github.com/mayswind/ezbookkeeping/pkg/core"
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"github.com/mayswind/ezbookkeeping/pkg/errs"
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"github.com/mayswind/ezbookkeeping/pkg/log"
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"github.com/mayswind/ezbookkeeping/pkg/settings"
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)
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type nextcloudUserInfoResponse struct {
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OCS *struct {
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Meta *struct {
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Status string `json:"status"`
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StatusCode int `json:"statuscode"`
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} `json:"meta"`
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Data *struct {
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ID string `json:"id"`
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Email string `json:"email"`
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DisplayName string `json:"display-name"`
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} `json:"data"`
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} `json:"ocs"`
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}
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// NextcloudOAuth2DataSource represents Nextcloud OAuth 2.0 data source
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type NextcloudOAuth2DataSource struct {
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common.CommonOAuth2DataSource
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baseUrl string
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}
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// GetAuthUrl returns the authentication url of the Nextcloud data source
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func (s *NextcloudOAuth2DataSource) GetAuthUrl() string {
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// Reference: https://docs.nextcloud.com/server/stable/developer_manual/_static/openapi.html#/operations/oauth2-login_redirector-authorize
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return s.baseUrl + "apps/oauth2/authorize"
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}
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// GetTokenUrl returns the token url of the Nextcloud data source
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func (s *NextcloudOAuth2DataSource) GetTokenUrl() string {
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// Reference: https://docs.nextcloud.com/server/stable/developer_manual/_static/openapi.html#/operations/oauth2-oauth_api-get-token
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return s.baseUrl + "apps/oauth2/api/v1/token"
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}
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// GetUserInfoRequest returns the user info request of the Nextcloud data source
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func (s *NextcloudOAuth2DataSource) GetUserInfoRequest() (*http.Request, error) {
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// Reference: https://docs.nextcloud.com/server/stable/developer_manual/_static/openapi.html#/operations/provisioning_api-users-get-current-user
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req, err := http.NewRequest("GET", s.baseUrl+"ocs/v2.php/cloud/user", nil)
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if err != nil {
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return nil, err
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}
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req.Header.Set("Accept", "application/json")
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req.Header.Set("OCS-APIRequest", "true")
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return req, nil
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}
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// GetScopes returns the scopes required by the Nextcloud provider
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func (s *NextcloudOAuth2DataSource) GetScopes() []string {
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return []string{}
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}
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// ParseUserInfo returns the user info by parsing the response body
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func (s *NextcloudOAuth2DataSource) ParseUserInfo(c core.Context, body []byte, oauth2Client *http.Client) (*data.OAuth2UserInfo, error) {
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userInfoResp := &nextcloudUserInfoResponse{}
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err := json.Unmarshal(body, &userInfoResp)
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if err != nil {
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log.Warnf(c, "[nextcloud_oauth2_datasource.ParseUserInfo] failed to parse user info response body, because %s", err.Error())
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return nil, errs.ErrCannotRetrieveUserInfo
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}
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if userInfoResp.OCS == nil || userInfoResp.OCS.Meta == nil || userInfoResp.OCS.Data == nil {
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log.Warnf(c, "[nextcloud_oauth2_datasource.ParseUserInfo] invalid user info response body")
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return nil, errs.ErrCannotRetrieveUserInfo
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}
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if userInfoResp.OCS.Meta.StatusCode != 200 {
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log.Warnf(c, "[nextcloud_oauth2_datasource.ParseUserInfo] user info response status code is %d", userInfoResp.OCS.Meta.StatusCode)
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return nil, errs.ErrCannotRetrieveUserInfo
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}
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if userInfoResp.OCS.Data.ID == "" {
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log.Warnf(c, "[nextcloud_oauth2_datasource.ParseUserInfo] user info id is empty")
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return nil, errs.ErrCannotRetrieveUserInfo
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}
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return &data.OAuth2UserInfo{
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UserName: userInfoResp.OCS.Data.ID,
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Email: userInfoResp.OCS.Data.Email,
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NickName: userInfoResp.OCS.Data.DisplayName,
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}, nil
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}
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// NewNextcloudOAuth2Provider creates a new Nextcloud OAuth 2.0 provider instance
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func NewNextcloudOAuth2Provider(config *settings.Config, redirectUrl string) (provider.OAuth2Provider, error) {
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if len(config.OAuth2NextcloudBaseUrl) < 1 {
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return nil, errs.ErrInvalidOAuth2Config
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}
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baseUrl := config.OAuth2NextcloudBaseUrl
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if baseUrl[len(baseUrl)-1] != '/' {
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baseUrl += "/"
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}
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return common.NewCommonOAuth2Provider(config, redirectUrl, &NextcloudOAuth2DataSource{
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baseUrl: baseUrl,
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}), nil
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}
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