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     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::{
  34     slurs::{check_slurs, check_slurs_opt},
  35     validation::is_valid_actor_name,
  36   },
  37   ConnectionId,
  38 };
  39
  40 #[async_trait::async_trait(?Send)]
  41 impl PerformCrud for Register {
  42   type Response = LoginResponse;
  43
  44   #[tracing::instrument(skip(self, context, _websocket_id))]
  45   async fn perform(
  46     &self,
  47     context: &Data<LemmyContext>,
  48     _websocket_id: Option<ConnectionId>,
  49   ) -> Result<LoginResponse, LemmyError> {
  50     let data: &Register = self;
  51
  52     let site_view = SiteView::read_local(context.pool()).await?;
  53     let local_site = site_view.local_site;
  54     let require_registration_application =
  55       local_site.registration_mode == RegistrationMode::RequireApplication;
  56
  57     if local_site.registration_mode == RegistrationMode::Closed {
  58       return Err(LemmyError::from_message("registration_closed"));
  59     }
  60
  61     password_length_check(&data.password)?;
  62     honeypot_check(&data.honeypot)?;
  63
  64     if local_site.require_email_verification && data.email.is_none() {
  65       return Err(LemmyError::from_message("email_required"));
  66     }
  67
  68     if local_site.site_setup && require_registration_application && data.answer.is_none() {
  69       return Err(LemmyError::from_message(
  70         "registration_application_answer_required",
  71       ));
  72     }
  73
  74     // Make sure passwords match
  75     if data.password != data.password_verify {
  76       return Err(LemmyError::from_message("passwords_dont_match"));
  77     }
  78
  79     // If the site is set up, check the captcha
  80     if local_site.site_setup && local_site.captcha_enabled {
  81       let check = context.chat_server().check_captcha(
  82         data.captcha_uuid.clone().unwrap_or_default(),
  83         data.captcha_answer.clone().unwrap_or_default(),
  84       )?;
  85       if !check {
  86         return Err(LemmyError::from_message("captcha_incorrect"));
  87       }
  88     }
  89
  90     let slur_regex = local_site_to_slur_regex(&local_site);
  91     check_slurs(&data.username, &slur_regex)?;
  92     check_slurs_opt(&data.answer, &slur_regex)?;
  93
  94     let actor_keypair = generate_actor_keypair()?;
  95     if !is_valid_actor_name(&data.username, local_site.actor_name_max_length as usize) {
  96       return Err(LemmyError::from_message("invalid_username"));
  97     }
  98     let actor_id = generate_local_apub_endpoint(
  99       EndpointType::Person,
 100       &data.username,
 101       &context.settings().get_protocol_and_hostname(),
 102     )?;
 103
 104     // We have to create both a person, and local_user
 105
 106     // Register the new person
 107     let person_form = PersonInsertForm::builder()
 108       .name(data.username.clone())
 109       .actor_id(Some(actor_id.clone()))
 110       .private_key(Some(actor_keypair.private_key))
 111       .public_key(actor_keypair.public_key)
 112       .inbox_url(Some(generate_inbox_url(&actor_id)?))
 113       .shared_inbox_url(Some(generate_shared_inbox_url(&actor_id)?))
 114       // If its the initial site setup, they are an admin
 115       .admin(Some(!local_site.site_setup))
 116       .instance_id(site_view.site.instance_id)
 117       .build();
 118
 119     // insert the person
 120     let inserted_person = Person::create(context.pool(), &person_form)
 121       .await
 122       .map_err(|e| LemmyError::from_error_message(e, "user_already_exists"))?;
 123
 124     // Create the local user
 125     let local_user_form = LocalUserInsertForm::builder()
 126       .person_id(inserted_person.id)
 127       .email(data.email.as_deref().map(str::to_lowercase))
 128       .password_encrypted(data.password.to_string())
 129       .show_nsfw(Some(data.show_nsfw))
 130       .build();
 131
 132     let inserted_local_user = match LocalUser::create(context.pool(), &local_user_form).await {
 133       Ok(lu) => lu,
 134       Err(e) => {
 135         let err_type = if e.to_string()
 136           == "duplicate key value violates unique constraint \"local_user_email_key\""
 137         {
 138           "email_already_exists"
 139         } else {
 140           "user_already_exists"
 141         };
 142
 143         // If the local user creation errored, then delete that person
 144         Person::delete(context.pool(), inserted_person.id).await?;
 145
 146         return Err(LemmyError::from_error_message(e, err_type));
 147       }
 148     };
 149
 150     if local_site.site_setup && require_registration_application {
 151       // Create the registration application
 152       let form = RegistrationApplicationInsertForm {
 153         local_user_id: inserted_local_user.id,
 154         // We already made sure answer was not null above
 155         answer: data.answer.clone().expect("must have an answer"),
 156       };
 157
 158       RegistrationApplication::create(context.pool(), &form).await?;
 159     }
 160
 161     // Email the admins
 162     if local_site.application_email_admins {
 163       send_new_applicant_email_to_admins(&data.username, context.pool(), context.settings())
 164         .await?;
 165     }
 166
 167     let mut login_response = LoginResponse {
 168       jwt: None,
 169       registration_created: false,
 170       verify_email_sent: false,
 171     };
 172
 173     // Log the user in directly if the site is not setup, or email verification and application aren't required
 174     if !local_site.site_setup
 175       || (!require_registration_application && !local_site.require_email_verification)
 176     {
 177       login_response.jwt = Some(
 178         Claims::jwt(
 179           inserted_local_user.id.0,
 180           &context.secret().jwt_secret,
 181           &context.settings().hostname,
 182         )?
 183         .into(),
 184       );
 185     } else {
 186       if local_site.require_email_verification {
 187         let local_user_view = LocalUserView {
 188           local_user: inserted_local_user,
 189           person: inserted_person,
 190           counts: PersonAggregates::default(),
 191         };
 192         // we check at the beginning of this method that email is set
 193         let email = local_user_view
 194           .local_user
 195           .email
 196           .clone()
 197           .expect("email was provided");
 198
 199         send_verification_email(&local_user_view, &email, context.pool(), context.settings())
 200           .await?;
 201         login_response.verify_email_sent = true;
 202       }
 203
 204       if require_registration_application {
 205         login_response.registration_created = true;
 206       }
 207     }
 208
 209     Ok(login_response)
 210   }
 211 }