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 chrono::NaiveDateTime;
   5 use lemmy_api_common::{
   6   context::LemmyContext,
   7   person::{LoginResponse, Register},
   8   utils::{
   9     generate_inbox_url,
  10     generate_local_apub_endpoint,
  11     generate_shared_inbox_url,
  12     honeypot_check,
  13     local_site_to_slur_regex,
  14     password_length_check,
  15     send_new_applicant_email_to_admins,
  16     send_verification_email,
  17     EndpointType,
  18   },
  19 };
  20 use lemmy_db_schema::{
  21   aggregates::structs::PersonAggregates,
  22   source::{
  23     captcha_answer::CaptchaAnswer,
  24     local_user::{LocalUser, LocalUserInsertForm},
  25     person::{Person, PersonInsertForm},
  26     registration_application::{RegistrationApplication, RegistrationApplicationInsertForm},
  27   },
  28   traits::Crud,
  29   RegistrationMode,
  30 };
  31 use lemmy_db_views::structs::{LocalUserView, SiteView};
  32 use lemmy_utils::{
  33   claims::Claims,
  34   error::LemmyError,
  35   utils::{
  36     slurs::{check_slurs, check_slurs_opt},
  37     validation::is_valid_actor_name,
  38   },
  39 };
  40
  41 #[async_trait::async_trait(?Send)]
  42 impl PerformCrud for Register {
  43   type Response = LoginResponse;
  44
  45   #[tracing::instrument(skip(self, context))]
  46   async fn perform(&self, context: &Data<LemmyContext>) -> 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 local_site.site_setup && local_site.captcha_enabled {
  77       let check = CaptchaAnswer::check_captcha(
  78         context.pool(),
  79         CaptchaAnswer {
  80           uuid: data.captcha_uuid.clone().unwrap_or_default(),
  81           answer: data.captcha_answer.clone().unwrap_or_default(),
  82           // not used when checking
  83           expires: NaiveDateTime::MIN,
  84         },
  85       )
  86       .await?;
  87       if !check {
  88         return Err(LemmyError::from_message("captcha_incorrect"));
  89       }
  90     }
  91
  92     let slur_regex = local_site_to_slur_regex(&local_site);
  93     check_slurs(&data.username, &slur_regex)?;
  94     check_slurs_opt(&data.answer, &slur_regex)?;
  95
  96     let actor_keypair = generate_actor_keypair()?;
  97     is_valid_actor_name(&data.username, local_site.actor_name_max_length as usize)?;
  98     let actor_id = generate_local_apub_endpoint(
  99       EndpointType::Person,
 100       &data.username,
 101       &context.settings().get_protocol_and_hostname(),
 102     )?;
 103
 104     if let Some(email) = &data.email {
 105       if LocalUser::is_email_taken(context.pool(), email).await? {
 106         return Err(LemmyError::from_message("email_already_exists"));
 107       }
 108     }
 109
 110     // We have to create both a person, and local_user
 111
 112     // Register the new person
 113     let person_form = PersonInsertForm::builder()
 114       .name(data.username.clone())
 115       .actor_id(Some(actor_id.clone()))
 116       .private_key(Some(actor_keypair.private_key))
 117       .public_key(actor_keypair.public_key)
 118       .inbox_url(Some(generate_inbox_url(&actor_id)?))
 119       .shared_inbox_url(Some(generate_shared_inbox_url(&actor_id)?))
 120       // If its the initial site setup, they are an admin
 121       .admin(Some(!local_site.site_setup))
 122       .instance_id(site_view.site.instance_id)
 123       .build();
 124
 125     // insert the person
 126     let inserted_person = Person::create(context.pool(), &person_form)
 127       .await
 128       .map_err(|e| LemmyError::from_error_message(e, "user_already_exists"))?;
 129
 130     // Automatically set their application as accepted, if they created this with open registration.
 131     // Also fixes a bug which allows users to log in when registrations are changed to closed.
 132     let accepted_application = Some(!require_registration_application);
 133
 134     // Create the local user
 135     let local_user_form = LocalUserInsertForm::builder()
 136       .person_id(inserted_person.id)
 137       .email(data.email.as_deref().map(str::to_lowercase))
 138       .password_encrypted(data.password.to_string())
 139       .show_nsfw(Some(data.show_nsfw))
 140       .accepted_application(accepted_application)
 141       .build();
 142
 143     let inserted_local_user = LocalUser::create(context.pool(), &local_user_form).await?;
 144
 145     if local_site.site_setup && require_registration_application {
 146       // Create the registration application
 147       let form = RegistrationApplicationInsertForm {
 148         local_user_id: inserted_local_user.id,
 149         // We already made sure answer was not null above
 150         answer: data.answer.clone().expect("must have an answer"),
 151       };
 152
 153       RegistrationApplication::create(context.pool(), &form).await?;
 154     }
 155
 156     // Email the admins
 157     if local_site.application_email_admins {
 158       send_new_applicant_email_to_admins(&data.username, context.pool(), context.settings())
 159         .await?;
 160     }
 161
 162     let mut login_response = LoginResponse {
 163       jwt: None,
 164       registration_created: false,
 165       verify_email_sent: false,
 166     };
 167
 168     // Log the user in directly if the site is not setup, or email verification and application aren't required
 169     if !local_site.site_setup
 170       || (!require_registration_application && !local_site.require_email_verification)
 171     {
 172       login_response.jwt = Some(
 173         Claims::jwt(
 174           inserted_local_user.id.0,
 175           &context.secret().jwt_secret,
 176           &context.settings().hostname,
 177         )?
 178         .into(),
 179       );
 180     } else {
 181       if local_site.require_email_verification {
 182         let local_user_view = LocalUserView {
 183           local_user: inserted_local_user,
 184           person: inserted_person,
 185           counts: PersonAggregates::default(),
 186         };
 187         // we check at the beginning of this method that email is set
 188         let email = local_user_view
 189           .local_user
 190           .email
 191           .clone()
 192           .expect("email was provided");
 193
 194         send_verification_email(&local_user_view, &email, context.pool(), context.settings())
 195           .await?;
 196         login_response.verify_email_sent = true;
 197       }
 198
 199       if require_registration_application {
 200         login_response.registration_created = true;
 201       }
 202     }
 203
 204     Ok(login_response)
 205   }
 206 }