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   person::{LoginResponse, Register},
   6   utils::{
   7     honeypot_check,
   8     local_site_to_slur_regex,
   9     password_length_check,
  10     send_new_applicant_email_to_admins,
  11     send_verification_email,
  12   },
  13 };
  14 use lemmy_apub::{
  15   generate_inbox_url,
  16   generate_local_apub_endpoint,
  17   generate_shared_inbox_url,
  18   EndpointType,
  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 use lemmy_websocket::{messages::CheckCaptcha, LemmyContext};
  37
  38 #[async_trait::async_trait(?Send)]
  39 impl PerformCrud for Register {
  40   type Response = LoginResponse;
  41
  42   #[tracing::instrument(skip(self, context, _websocket_id))]
  43   async fn perform(
  44     &self,
  45     context: &Data<LemmyContext>,
  46     _websocket_id: Option<ConnectionId>,
  47   ) -> Result<LoginResponse, LemmyError> {
  48     let data: &Register = self;
  49
  50     let site_view = SiteView::read_local(context.pool()).await?;
  51     let local_site = site_view.local_site;
  52
  53     if !local_site.open_registration {
  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 && local_site.require_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 the site is set up, check the captcha
  76     if local_site.site_setup && local_site.captcha_enabled {
  77       let check = context
  78         .chat_server()
  79         .send(CheckCaptcha {
  80           uuid: data.captcha_uuid.clone().unwrap_or_default(),
  81           answer: data.captcha_answer.clone().unwrap_or_default(),
  82         })
  83         .await?;
  84       if !check {
  85         return Err(LemmyError::from_message("captcha_incorrect"));
  86       }
  87     }
  88
  89     let slur_regex = local_site_to_slur_regex(&local_site);
  90     check_slurs(&data.username, &slur_regex)?;
  91     check_slurs_opt(&data.answer, &slur_regex)?;
  92
  93     let actor_keypair = generate_actor_keypair()?;
  94     if !is_valid_actor_name(&data.username, local_site.actor_name_max_length as usize) {
  95       return Err(LemmyError::from_message("invalid_username"));
  96     }
  97     let actor_id = generate_local_apub_endpoint(
  98       EndpointType::Person,
  99       &data.username,
 100       &context.settings().get_protocol_and_hostname(),
 101     )?;
 102
 103     // We have to create both a person, and local_user
 104
 105     // Register the new person
 106     let person_form = PersonInsertForm::builder()
 107       .name(data.username.clone())
 108       .actor_id(Some(actor_id.clone()))
 109       .private_key(Some(actor_keypair.private_key))
 110       .public_key(actor_keypair.public_key)
 111       .inbox_url(Some(generate_inbox_url(&actor_id)?))
 112       .shared_inbox_url(Some(generate_shared_inbox_url(&actor_id)?))
 113       // If its the initial site setup, they are an admin
 114       .admin(Some(!local_site.site_setup))
 115       .instance_id(site_view.site.instance_id)
 116       .build();
 117
 118     // insert the person
 119     let inserted_person = Person::create(context.pool(), &person_form)
 120       .await
 121       .map_err(|e| LemmyError::from_error_message(e, "user_already_exists"))?;
 122
 123     // Create the local user
 124     let local_user_form = LocalUserInsertForm::builder()
 125       .person_id(inserted_person.id)
 126       .email(data.email.as_deref().map(str::to_lowercase))
 127       .password_encrypted(data.password.to_string())
 128       .show_nsfw(Some(data.show_nsfw))
 129       .build();
 130
 131     let inserted_local_user = match LocalUser::create(context.pool(), &local_user_form).await {
 132       Ok(lu) => lu,
 133       Err(e) => {
 134         let err_type = if e.to_string()
 135           == "duplicate key value violates unique constraint \"local_user_email_key\""
 136         {
 137           "email_already_exists"
 138         } else {
 139           "user_already_exists"
 140         };
 141
 142         // If the local user creation errored, then delete that person
 143         Person::delete(context.pool(), inserted_person.id).await?;
 144
 145         return Err(LemmyError::from_error_message(e, err_type));
 146       }
 147     };
 148
 149     if local_site.site_setup && local_site.require_application {
 150       // Create the registration application
 151       let form = RegistrationApplicationInsertForm {
 152         local_user_id: inserted_local_user.id,
 153         // We already made sure answer was not null above
 154         answer: data.answer.clone().expect("must have an answer"),
 155       };
 156
 157       RegistrationApplication::create(context.pool(), &form).await?;
 158     }
 159
 160     // Email the admins
 161     if local_site.application_email_admins {
 162       send_new_applicant_email_to_admins(&data.username, context.pool(), context.settings())
 163         .await?;
 164     }
 165
 166     let mut login_response = LoginResponse {
 167       jwt: None,
 168       registration_created: false,
 169       verify_email_sent: false,
 170     };
 171
 172     // Log the user in directly if the site is not setup, or email verification and application aren't required
 173     if !local_site.site_setup
 174       || (!local_site.require_application && !local_site.require_email_verification)
 175     {
 176       login_response.jwt = Some(
 177         Claims::jwt(
 178           inserted_local_user.id.0,
 179           &context.secret().jwt_secret,
 180           &context.settings().hostname,
 181         )?
 182         .into(),
 183       );
 184     } else {
 185       if local_site.require_email_verification {
 186         let local_user_view = LocalUserView {
 187           local_user: inserted_local_user,
 188           person: inserted_person,
 189           counts: PersonAggregates::default(),
 190         };
 191         // we check at the beginning of this method that email is set
 192         let email = local_user_view
 193           .local_user
 194           .email
 195           .clone()
 196           .expect("email was provided");
 197
 198         send_verification_email(&local_user_view, &email, context.pool(), context.settings())
 199           .await?;
 200         login_response.verify_email_sent = true;
 201       }
 202
 203       if local_site.require_application {
 204         login_response.registration_created = true;
 205       }
 206     }
 207
 208     Ok(login_response)
 209   }
 210 }