crates/api_crud/src/user/create.rs

   1 use crate::PerformCrud;
   2 use activitypub_federation::core::signatures::generate_actor_keypair;
   3 use actix_web::web::Data;
   4 use lemmy_api_common::{
   5   context::LemmyContext,
   6   person::{LoginResponse, Register},
   7   utils::{
   8     generate_inbox_url,
   9     generate_local_apub_endpoint,
  10     generate_shared_inbox_url,
  11     honeypot_check,
  12     local_site_to_slur_regex,
  13     password_length_check,
  14     send_new_applicant_email_to_admins,
  15     send_verification_email,
  16     EndpointType,
  17   },
  18   websocket::messages::CheckCaptcha,
  19 };
  20 use lemmy_db_schema::{
  21   aggregates::structs::PersonAggregates,
  22   source::{
  23     local_user::{LocalUser, LocalUserInsertForm},
  24     person::{Person, PersonInsertForm},
  25     registration_application::{RegistrationApplication, RegistrationApplicationInsertForm},
  26   },
  27   traits::Crud,
  28 };
  29 use lemmy_db_views::structs::{LocalUserView, SiteView};
  30 use lemmy_utils::{
  31   claims::Claims,
  32   error::LemmyError,
  33   utils::{check_slurs, check_slurs_opt, is_valid_actor_name},
  34   ConnectionId,
  35 };
  36
  37 #[async_trait::async_trait(?Send)]
  38 impl PerformCrud for Register {
  39   type Response = LoginResponse;
  40
  41   #[tracing::instrument(skip(self, context, _websocket_id))]
  42   async fn perform(
  43     &self,
  44     context: &Data<LemmyContext>,
  45     _websocket_id: Option<ConnectionId>,
  46   ) -> Result<LoginResponse, LemmyError> {
  47     let data: &Register = self;
  48
  49     let site_view = SiteView::read_local(context.pool()).await?;
  50     let local_site = site_view.local_site;
  51
  52     if !local_site.open_registration {
  53       return Err(LemmyError::from_message("registration_closed"));
  54     }
  55
  56     password_length_check(&data.password)?;
  57     honeypot_check(&data.honeypot)?;
  58
  59     if local_site.require_email_verification && data.email.is_none() {
  60       return Err(LemmyError::from_message("email_required"));
  61     }
  62
  63     if local_site.site_setup && local_site.require_application && data.answer.is_none() {
  64       return Err(LemmyError::from_message(
  65         "registration_application_answer_required",
  66       ));
  67     }
  68
  69     // Make sure passwords match
  70     if data.password != data.password_verify {
  71       return Err(LemmyError::from_message("passwords_dont_match"));
  72     }
  73
  74     // If the site is set up, check the captcha
  75     if local_site.site_setup && local_site.captcha_enabled {
  76       let check = context
  77         .chat_server()
  78         .send(CheckCaptcha {
  79           uuid: data.captcha_uuid.clone().unwrap_or_default(),
  80           answer: data.captcha_answer.clone().unwrap_or_default(),
  81         })
  82         .await?;
  83       if !check {
  84         return Err(LemmyError::from_message("captcha_incorrect"));
  85       }
  86     }
  87
  88     let slur_regex = local_site_to_slur_regex(&local_site);
  89     check_slurs(&data.username, &slur_regex)?;
  90     check_slurs_opt(&data.answer, &slur_regex)?;
  91
  92     let actor_keypair = generate_actor_keypair()?;
  93     if !is_valid_actor_name(&data.username, local_site.actor_name_max_length as usize) {
  94       return Err(LemmyError::from_message("invalid_username"));
  95     }
  96     let actor_id = generate_local_apub_endpoint(
  97       EndpointType::Person,
  98       &data.username,
  99       &context.settings().get_protocol_and_hostname(),
 100     )?;
 101
 102     // We have to create both a person, and local_user
 103
 104     // Register the new person
 105     let person_form = PersonInsertForm::builder()
 106       .name(data.username.clone())
 107       .actor_id(Some(actor_id.clone()))
 108       .private_key(Some(actor_keypair.private_key))
 109       .public_key(actor_keypair.public_key)
 110       .inbox_url(Some(generate_inbox_url(&actor_id)?))
 111       .shared_inbox_url(Some(generate_shared_inbox_url(&actor_id)?))
 112       // If its the initial site setup, they are an admin
 113       .admin(Some(!local_site.site_setup))
 114       .instance_id(site_view.site.instance_id)
 115       .build();
 116
 117     // insert the person
 118     let inserted_person = Person::create(context.pool(), &person_form)
 119       .await
 120       .map_err(|e| LemmyError::from_error_message(e, "user_already_exists"))?;
 121
 122     // Create the local user
 123     let local_user_form = LocalUserInsertForm::builder()
 124       .person_id(inserted_person.id)
 125       .email(data.email.as_deref().map(str::to_lowercase))
 126       .password_encrypted(data.password.to_string())
 127       .show_nsfw(Some(data.show_nsfw))
 128       .build();
 129
 130     let inserted_local_user = match LocalUser::create(context.pool(), &local_user_form).await {
 131       Ok(lu) => lu,
 132       Err(e) => {
 133         let err_type = if e.to_string()
 134           == "duplicate key value violates unique constraint \"local_user_email_key\""
 135         {
 136           "email_already_exists"
 137         } else {
 138           "user_already_exists"
 139         };
 140
 141         // If the local user creation errored, then delete that person
 142         Person::delete(context.pool(), inserted_person.id).await?;
 143
 144         return Err(LemmyError::from_error_message(e, err_type));
 145       }
 146     };
 147
 148     if local_site.site_setup && local_site.require_application {
 149       // Create the registration application
 150       let form = RegistrationApplicationInsertForm {
 151         local_user_id: inserted_local_user.id,
 152         // We already made sure answer was not null above
 153         answer: data.answer.clone().expect("must have an answer"),
 154       };
 155
 156       RegistrationApplication::create(context.pool(), &form).await?;
 157     }
 158
 159     // Email the admins
 160     if local_site.application_email_admins {
 161       send_new_applicant_email_to_admins(&data.username, context.pool(), context.settings())
 162         .await?;
 163     }
 164
 165     let mut login_response = LoginResponse {
 166       jwt: None,
 167       registration_created: false,
 168       verify_email_sent: false,
 169     };
 170
 171     // Log the user in directly if the site is not setup, or email verification and application aren't required
 172     if !local_site.site_setup
 173       || (!local_site.require_application && !local_site.require_email_verification)
 174     {
 175       login_response.jwt = Some(
 176         Claims::jwt(
 177           inserted_local_user.id.0,
 178           &context.secret().jwt_secret,
 179           &context.settings().hostname,
 180         )?
 181         .into(),
 182       );
 183     } else {
 184       if local_site.require_email_verification {
 185         let local_user_view = LocalUserView {
 186           local_user: inserted_local_user,
 187           person: inserted_person,
 188           counts: PersonAggregates::default(),
 189         };
 190         // we check at the beginning of this method that email is set
 191         let email = local_user_view
 192           .local_user
 193           .email
 194           .clone()
 195           .expect("email was provided");
 196
 197         send_verification_email(&local_user_view, &email, context.pool(), context.settings())
 198           .await?;
 199         login_response.verify_email_sent = true;
 200       }
 201
 202       if local_site.require_application {
 203         login_response.registration_created = true;
 204       }
 205     }
 206
 207     Ok(login_response)
 208   }
 209 }