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 };
  19 use lemmy_db_schema::{
  20   aggregates::structs::PersonAggregates,
  21   source::{
  22     local_site::RegistrationMode,
  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     let require_registration_application =
  52       local_site.registration_mode == RegistrationMode::RequireApplication;
  53
  54     if local_site.registration_mode == RegistrationMode::Closed {
  55       return Err(LemmyError::from_message("registration_closed"));
  56     }
  57
  58     password_length_check(&data.password)?;
  59     honeypot_check(&data.honeypot)?;
  60
  61     if local_site.require_email_verification && data.email.is_none() {
  62       return Err(LemmyError::from_message("email_required"));
  63     }
  64
  65     if local_site.site_setup && require_registration_application && data.answer.is_none() {
  66       return Err(LemmyError::from_message(
  67         "registration_application_answer_required",
  68       ));
  69     }
  70
  71     // Make sure passwords match
  72     if data.password != data.password_verify {
  73       return Err(LemmyError::from_message("passwords_dont_match"));
  74     }
  75
  76     // If the site is set up, check the captcha
  77     if local_site.site_setup && local_site.captcha_enabled {
  78       let check = context.chat_server().check_captcha(
  79         data.captcha_uuid.clone().unwrap_or_default(),
  80         data.captcha_answer.clone().unwrap_or_default(),
  81       )?;
  82       if !check {
  83         return Err(LemmyError::from_message("captcha_incorrect"));
  84       }
  85     }
  86
  87     let slur_regex = local_site_to_slur_regex(&local_site);
  88     check_slurs(&data.username, &slur_regex)?;
  89     check_slurs_opt(&data.answer, &slur_regex)?;
  90
  91     let actor_keypair = generate_actor_keypair()?;
  92     if !is_valid_actor_name(&data.username, local_site.actor_name_max_length as usize) {
  93       return Err(LemmyError::from_message("invalid_username"));
  94     }
  95     let actor_id = generate_local_apub_endpoint(
  96       EndpointType::Person,
  97       &data.username,
  98       &context.settings().get_protocol_and_hostname(),
  99     )?;
 100
 101     // We have to create both a person, and local_user
 102
 103     // Register the new person
 104     let person_form = PersonInsertForm::builder()
 105       .name(data.username.clone())
 106       .actor_id(Some(actor_id.clone()))
 107       .private_key(Some(actor_keypair.private_key))
 108       .public_key(actor_keypair.public_key)
 109       .inbox_url(Some(generate_inbox_url(&actor_id)?))
 110       .shared_inbox_url(Some(generate_shared_inbox_url(&actor_id)?))
 111       // If its the initial site setup, they are an admin
 112       .admin(Some(!local_site.site_setup))
 113       .instance_id(site_view.site.instance_id)
 114       .build();
 115
 116     // insert the person
 117     let inserted_person = Person::create(context.pool(), &person_form)
 118       .await
 119       .map_err(|e| LemmyError::from_error_message(e, "user_already_exists"))?;
 120
 121     // Create the local user
 122     let local_user_form = LocalUserInsertForm::builder()
 123       .person_id(inserted_person.id)
 124       .email(data.email.as_deref().map(str::to_lowercase))
 125       .password_encrypted(data.password.to_string())
 126       .show_nsfw(Some(data.show_nsfw))
 127       .build();
 128
 129     let inserted_local_user = match LocalUser::create(context.pool(), &local_user_form).await {
 130       Ok(lu) => lu,
 131       Err(e) => {
 132         let err_type = if e.to_string()
 133           == "duplicate key value violates unique constraint \"local_user_email_key\""
 134         {
 135           "email_already_exists"
 136         } else {
 137           "user_already_exists"
 138         };
 139
 140         // If the local user creation errored, then delete that person
 141         Person::delete(context.pool(), inserted_person.id).await?;
 142
 143         return Err(LemmyError::from_error_message(e, err_type));
 144       }
 145     };
 146
 147     if local_site.site_setup && require_registration_application {
 148       // Create the registration application
 149       let form = RegistrationApplicationInsertForm {
 150         local_user_id: inserted_local_user.id,
 151         // We already made sure answer was not null above
 152         answer: data.answer.clone().expect("must have an answer"),
 153       };
 154
 155       RegistrationApplication::create(context.pool(), &form).await?;
 156     }
 157
 158     // Email the admins
 159     if local_site.application_email_admins {
 160       send_new_applicant_email_to_admins(&data.username, context.pool(), context.settings())
 161         .await?;
 162     }
 163
 164     let mut login_response = LoginResponse {
 165       jwt: None,
 166       registration_created: false,
 167       verify_email_sent: false,
 168     };
 169
 170     // Log the user in directly if the site is not setup, or email verification and application aren't required
 171     if !local_site.site_setup
 172       || (!require_registration_application && !local_site.require_email_verification)
 173     {
 174       login_response.jwt = Some(
 175         Claims::jwt(
 176           inserted_local_user.id.0,
 177           &context.secret().jwt_secret,
 178           &context.settings().hostname,
 179         )?
 180         .into(),
 181       );
 182     } else {
 183       if local_site.require_email_verification {
 184         let local_user_view = LocalUserView {
 185           local_user: inserted_local_user,
 186           person: inserted_person,
 187           counts: PersonAggregates::default(),
 188         };
 189         // we check at the beginning of this method that email is set
 190         let email = local_user_view
 191           .local_user
 192           .email
 193           .clone()
 194           .expect("email was provided");
 195
 196         send_verification_email(&local_user_view, &email, context.pool(), context.settings())
 197           .await?;
 198         login_response.verify_email_sent = true;
 199       }
 200
 201       if require_registration_application {
 202         login_response.registration_created = true;
 203       }
 204     }
 205
 206     Ok(login_response)
 207   }
 208 }