crates/api_crud/src/user/create.rs

   1 use crate::PerformCrud;
   2 use activitypub_federation::http_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     captcha_answer::{CaptchaAnswer, CheckCaptchaAnswer},
  23     local_user::{LocalUser, LocalUserInsertForm},
  24     person::{Person, PersonInsertForm},
  25     registration_application::{RegistrationApplication, RegistrationApplicationInsertForm},
  26   },
  27   traits::Crud,
  28   RegistrationMode,
  29 };
  30 use lemmy_db_views::structs::{LocalUserView, SiteView};
  31 use lemmy_utils::{
  32   claims::Claims,
  33   error::LemmyError,
  34   utils::{
  35     slurs::{check_slurs, check_slurs_opt},
  36     validation::is_valid_actor_name,
  37   },
  38 };
  39
  40 #[async_trait::async_trait(?Send)]
  41 impl PerformCrud for Register {
  42   type Response = LoginResponse;
  43
  44   #[tracing::instrument(skip(self, context))]
  45   async fn perform(&self, context: &Data<LemmyContext>) -> Result<LoginResponse, LemmyError> {
  46     let data: &Register = self;
  47
  48     let site_view = SiteView::read_local(context.pool()).await?;
  49     let local_site = site_view.local_site;
  50     let require_registration_application =
  51       local_site.registration_mode == RegistrationMode::RequireApplication;
  52
  53     if local_site.registration_mode == RegistrationMode::Closed {
  54       return Err(LemmyError::from_message("registration_closed"));
  55     }
  56
  57     password_length_check(&data.password)?;
  58     honeypot_check(&data.honeypot)?;
  59
  60     if local_site.require_email_verification && data.email.is_none() {
  61       return Err(LemmyError::from_message("email_required"));
  62     }
  63
  64     if local_site.site_setup && require_registration_application && data.answer.is_none() {
  65       return Err(LemmyError::from_message(
  66         "registration_application_answer_required",
  67       ));
  68     }
  69
  70     // Make sure passwords match
  71     if data.password != data.password_verify {
  72       return Err(LemmyError::from_message("passwords_dont_match"));
  73     }
  74
  75     if local_site.site_setup && local_site.captcha_enabled {
  76       if let Some(captcha_uuid) = &data.captcha_uuid {
  77         let uuid = uuid::Uuid::parse_str(captcha_uuid)?;
  78         let check = CaptchaAnswer::check_captcha(
  79           context.pool(),
  80           CheckCaptchaAnswer {
  81             uuid,
  82             answer: data.captcha_answer.clone().unwrap_or_default(),
  83           },
  84         )
  85         .await?;
  86         if !check {
  87           return Err(LemmyError::from_message("captcha_incorrect"));
  88         }
  89       } else {
  90         return Err(LemmyError::from_message("captcha_incorrect"));
  91       }
  92     }
  93
  94     let slur_regex = local_site_to_slur_regex(&local_site);
  95     check_slurs(&data.username, &slur_regex)?;
  96     check_slurs_opt(&data.answer, &slur_regex)?;
  97
  98     let actor_keypair = generate_actor_keypair()?;
  99     is_valid_actor_name(&data.username, local_site.actor_name_max_length as usize)?;
 100     let actor_id = generate_local_apub_endpoint(
 101       EndpointType::Person,
 102       &data.username,
 103       &context.settings().get_protocol_and_hostname(),
 104     )?;
 105
 106     if let Some(email) = &data.email {
 107       if LocalUser::is_email_taken(context.pool(), email).await? {
 108         return Err(LemmyError::from_message("email_already_exists"));
 109       }
 110     }
 111
 112     // We have to create both a person, and local_user
 113
 114     // Register the new person
 115     let person_form = PersonInsertForm::builder()
 116       .name(data.username.clone())
 117       .actor_id(Some(actor_id.clone()))
 118       .private_key(Some(actor_keypair.private_key))
 119       .public_key(actor_keypair.public_key)
 120       .inbox_url(Some(generate_inbox_url(&actor_id)?))
 121       .shared_inbox_url(Some(generate_shared_inbox_url(&actor_id)?))
 122       // If its the initial site setup, they are an admin
 123       .admin(Some(!local_site.site_setup))
 124       .instance_id(site_view.site.instance_id)
 125       .build();
 126
 127     // insert the person
 128     let inserted_person = Person::create(context.pool(), &person_form)
 129       .await
 130       .map_err(|e| LemmyError::from_error_message(e, "user_already_exists"))?;
 131
 132     // Automatically set their application as accepted, if they created this with open registration.
 133     // Also fixes a bug which allows users to log in when registrations are changed to closed.
 134     let accepted_application = Some(!require_registration_application);
 135
 136     // Create the local user
 137     let local_user_form = LocalUserInsertForm::builder()
 138       .person_id(inserted_person.id)
 139       .email(data.email.as_deref().map(str::to_lowercase))
 140       .password_encrypted(data.password.to_string())
 141       .show_nsfw(Some(data.show_nsfw))
 142       .accepted_application(accepted_application)
 143       .build();
 144
 145     let inserted_local_user = LocalUser::create(context.pool(), &local_user_form).await?;
 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 }