crates/api_common/src/utils.rs

   1 use crate::{
   2   context::LemmyContext,
   3   request::purge_image_from_pictrs,
   4   sensitive::Sensitive,
   5   site::FederatedInstances,
   6 };
   7 use anyhow::Context;
   8 use chrono::NaiveDateTime;
   9 use futures::try_join;
  10 use lemmy_db_schema::{
  11   impls::person::is_banned,
  12   newtypes::{CommunityId, DbUrl, LocalUserId, PersonId, PostId},
  13   source::{
  14     comment::{Comment, CommentUpdateForm},
  15     community::{Community, CommunityModerator, CommunityUpdateForm},
  16     email_verification::{EmailVerification, EmailVerificationForm},
  17     instance::Instance,
  18     local_site::LocalSite,
  19     local_site_rate_limit::LocalSiteRateLimit,
  20     password_reset_request::PasswordResetRequest,
  21     person::{Person, PersonUpdateForm},
  22     person_block::PersonBlock,
  23     post::{Post, PostRead, PostReadForm},
  24     registration_application::RegistrationApplication,
  25   },
  26   traits::{Crud, Readable},
  27   utils::DbPool,
  28   RegistrationMode,
  29 };
  30 use lemmy_db_views::{comment_view::CommentQuery, structs::LocalUserView};
  31 use lemmy_db_views_actor::structs::{
  32   CommunityModeratorView,
  33   CommunityPersonBanView,
  34   CommunityView,
  35 };
  36 use lemmy_utils::{
  37   claims::Claims,
  38   email::{send_email, translations::Lang},
  39   error::LemmyError,
  40   location_info,
  41   rate_limit::RateLimitConfig,
  42   settings::structs::Settings,
  43   utils::slurs::build_slur_regex,
  44 };
  45 use regex::Regex;
  46 use reqwest_middleware::ClientWithMiddleware;
  47 use rosetta_i18n::{Language, LanguageId};
  48 use tracing::warn;
  49 use url::{ParseError, Url};
  50
  51 #[tracing::instrument(skip_all)]
  52 pub async fn is_mod_or_admin(
  53   pool: &DbPool,
  54   person_id: PersonId,
  55   community_id: CommunityId,
  56 ) -> Result<(), LemmyError> {
  57   let is_mod_or_admin = CommunityView::is_mod_or_admin(pool, person_id, community_id).await?;
  58   if !is_mod_or_admin {
  59     return Err(LemmyError::from_message("not_a_mod_or_admin"));
  60   }
  61   Ok(())
  62 }
  63
  64 #[tracing::instrument(skip_all)]
  65 pub async fn is_mod_or_admin_opt(
  66   pool: &DbPool,
  67   local_user_view: Option<&LocalUserView>,
  68   community_id: Option<CommunityId>,
  69 ) -> Result<(), LemmyError> {
  70   if let Some(local_user_view) = local_user_view {
  71     if let Some(community_id) = community_id {
  72       is_mod_or_admin(pool, local_user_view.person.id, community_id).await
  73     } else {
  74       is_admin(local_user_view)
  75     }
  76   } else {
  77     Err(LemmyError::from_message("not_a_mod_or_admin"))
  78   }
  79 }
  80
  81 pub fn is_admin(local_user_view: &LocalUserView) -> Result<(), LemmyError> {
  82   if !local_user_view.person.admin {
  83     return Err(LemmyError::from_message("not_an_admin"));
  84   }
  85   Ok(())
  86 }
  87
  88 pub fn is_top_mod(
  89   local_user_view: &LocalUserView,
  90   community_mods: &[CommunityModeratorView],
  91 ) -> Result<(), LemmyError> {
  92   if local_user_view.person.id
  93     != community_mods
  94       .first()
  95       .map(|cm| cm.moderator.id)
  96       .unwrap_or(PersonId(0))
  97   {
  98     return Err(LemmyError::from_message("not_top_mod"));
  99   }
 100   Ok(())
 101 }
 102
 103 #[tracing::instrument(skip_all)]
 104 pub async fn get_post(post_id: PostId, pool: &DbPool) -> Result<Post, LemmyError> {
 105   Post::read(pool, post_id)
 106     .await
 107     .map_err(|e| LemmyError::from_error_message(e, "couldnt_find_post"))
 108 }
 109
 110 #[tracing::instrument(skip_all)]
 111 pub async fn mark_post_as_read(
 112   person_id: PersonId,
 113   post_id: PostId,
 114   pool: &DbPool,
 115 ) -> Result<PostRead, LemmyError> {
 116   let post_read_form = PostReadForm { post_id, person_id };
 117
 118   PostRead::mark_as_read(pool, &post_read_form)
 119     .await
 120     .map_err(|e| LemmyError::from_error_message(e, "couldnt_mark_post_as_read"))
 121 }
 122
 123 #[tracing::instrument(skip_all)]
 124 pub async fn mark_post_as_unread(
 125   person_id: PersonId,
 126   post_id: PostId,
 127   pool: &DbPool,
 128 ) -> Result<usize, LemmyError> {
 129   let post_read_form = PostReadForm { post_id, person_id };
 130
 131   PostRead::mark_as_unread(pool, &post_read_form)
 132     .await
 133     .map_err(|e| LemmyError::from_error_message(e, "couldnt_mark_post_as_read"))
 134 }
 135
 136 #[tracing::instrument(skip_all)]
 137 pub async fn local_user_view_from_jwt(
 138   jwt: &str,
 139   context: &LemmyContext,
 140 ) -> Result<LocalUserView, LemmyError> {
 141   let claims = Claims::decode(jwt, &context.secret().jwt_secret)
 142     .map_err(|e| e.with_message("not_logged_in"))?
 143     .claims;
 144   let local_user_id = LocalUserId(claims.sub);
 145   let local_user_view = LocalUserView::read(context.pool(), local_user_id).await?;
 146   check_user_valid(
 147     local_user_view.person.banned,
 148     local_user_view.person.ban_expires,
 149     local_user_view.person.deleted,
 150   )?;
 151
 152   check_validator_time(&local_user_view.local_user.validator_time, &claims)?;
 153
 154   Ok(local_user_view)
 155 }
 156
 157 #[tracing::instrument(skip_all)]
 158 pub async fn local_user_view_from_jwt_opt(
 159   jwt: Option<&Sensitive<String>>,
 160   context: &LemmyContext,
 161 ) -> Option<LocalUserView> {
 162   local_user_view_from_jwt(jwt?, context).await.ok()
 163 }
 164
 165 /// Checks if user's token was issued before user's password reset.
 166 pub fn check_validator_time(
 167   validator_time: &NaiveDateTime,
 168   claims: &Claims,
 169 ) -> Result<(), LemmyError> {
 170   let user_validation_time = validator_time.timestamp();
 171   if user_validation_time > claims.iat {
 172     Err(LemmyError::from_message("not_logged_in"))
 173   } else {
 174     Ok(())
 175   }
 176 }
 177
 178 pub fn check_user_valid(
 179   banned: bool,
 180   ban_expires: Option<NaiveDateTime>,
 181   deleted: bool,
 182 ) -> Result<(), LemmyError> {
 183   // Check for a site ban
 184   if is_banned(banned, ban_expires) {
 185     return Err(LemmyError::from_message("site_ban"));
 186   }
 187
 188   // check for account deletion
 189   if deleted {
 190     return Err(LemmyError::from_message("deleted"));
 191   }
 192
 193   Ok(())
 194 }
 195
 196 #[tracing::instrument(skip_all)]
 197 pub async fn check_community_ban(
 198   person_id: PersonId,
 199   community_id: CommunityId,
 200   pool: &DbPool,
 201 ) -> Result<(), LemmyError> {
 202   let is_banned = CommunityPersonBanView::get(pool, person_id, community_id)
 203     .await
 204     .is_ok();
 205   if is_banned {
 206     Err(LemmyError::from_message("community_ban"))
 207   } else {
 208     Ok(())
 209   }
 210 }
 211
 212 #[tracing::instrument(skip_all)]
 213 pub async fn check_community_deleted_or_removed(
 214   community_id: CommunityId,
 215   pool: &DbPool,
 216 ) -> Result<(), LemmyError> {
 217   let community = Community::read(pool, community_id)
 218     .await
 219     .map_err(|e| LemmyError::from_error_message(e, "couldnt_find_community"))?;
 220   if community.deleted || community.removed {
 221     Err(LemmyError::from_message("deleted"))
 222   } else {
 223     Ok(())
 224   }
 225 }
 226
 227 pub fn check_post_deleted_or_removed(post: &Post) -> Result<(), LemmyError> {
 228   if post.deleted || post.removed {
 229     Err(LemmyError::from_message("deleted"))
 230   } else {
 231     Ok(())
 232   }
 233 }
 234
 235 #[tracing::instrument(skip_all)]
 236 pub async fn check_person_block(
 237   my_id: PersonId,
 238   potential_blocker_id: PersonId,
 239   pool: &DbPool,
 240 ) -> Result<(), LemmyError> {
 241   let is_blocked = PersonBlock::read(pool, potential_blocker_id, my_id)
 242     .await
 243     .is_ok();
 244   if is_blocked {
 245     Err(LemmyError::from_message("person_block"))
 246   } else {
 247     Ok(())
 248   }
 249 }
 250
 251 #[tracing::instrument(skip_all)]
 252 pub fn check_downvotes_enabled(score: i16, local_site: &LocalSite) -> Result<(), LemmyError> {
 253   if score == -1 && !local_site.enable_downvotes {
 254     return Err(LemmyError::from_message("downvotes_disabled"));
 255   }
 256   Ok(())
 257 }
 258
 259 #[tracing::instrument(skip_all)]
 260 pub fn check_private_instance(
 261   local_user_view: &Option<LocalUserView>,
 262   local_site: &LocalSite,
 263 ) -> Result<(), LemmyError> {
 264   if local_user_view.is_none() && local_site.private_instance {
 265     return Err(LemmyError::from_message("instance_is_private"));
 266   }
 267   Ok(())
 268 }
 269
 270 #[tracing::instrument(skip_all)]
 271 pub async fn build_federated_instances(
 272   local_site: &LocalSite,
 273   pool: &DbPool,
 274 ) -> Result<Option<FederatedInstances>, LemmyError> {
 275   if local_site.federation_enabled {
 276     // TODO I hate that this requires 3 queries
 277     let (linked, allowed, blocked) = try_join!(
 278       Instance::linked(pool),
 279       Instance::allowlist(pool),
 280       Instance::blocklist(pool)
 281     )?;
 282
 283     Ok(Some(FederatedInstances {
 284       linked,
 285       allowed,
 286       blocked,
 287     }))
 288   } else {
 289     Ok(None)
 290   }
 291 }
 292
 293 /// Checks the password length
 294 pub fn password_length_check(pass: &str) -> Result<(), LemmyError> {
 295   if !(10..=60).contains(&pass.chars().count()) {
 296     Err(LemmyError::from_message("invalid_password"))
 297   } else {
 298     Ok(())
 299   }
 300 }
 301
 302 /// Checks the site description length
 303 pub fn site_description_length_check(description: &str) -> Result<(), LemmyError> {
 304   if description.len() > 150 {
 305     Err(LemmyError::from_message("site_description_length_overflow"))
 306   } else {
 307     Ok(())
 308   }
 309 }
 310
 311 /// Checks for a honeypot. If this field is filled, fail the rest of the function
 312 pub fn honeypot_check(honeypot: &Option<String>) -> Result<(), LemmyError> {
 313   if honeypot.is_some() && honeypot != &Some(String::new()) {
 314     Err(LemmyError::from_message("honeypot_fail"))
 315   } else {
 316     Ok(())
 317   }
 318 }
 319
 320 pub fn send_email_to_user(
 321   local_user_view: &LocalUserView,
 322   subject: &str,
 323   body: &str,
 324   settings: &Settings,
 325 ) {
 326   if local_user_view.person.banned || !local_user_view.local_user.send_notifications_to_email {
 327     return;
 328   }
 329
 330   if let Some(user_email) = &local_user_view.local_user.email {
 331     match send_email(
 332       subject,
 333       user_email,
 334       &local_user_view.person.name,
 335       body,
 336       settings,
 337     ) {
 338       Ok(_o) => _o,
 339       Err(e) => warn!("{}", e),
 340     };
 341   }
 342 }
 343
 344 pub async fn send_password_reset_email(
 345   user: &LocalUserView,
 346   pool: &DbPool,
 347   settings: &Settings,
 348 ) -> Result<(), LemmyError> {
 349   // Generate a random token
 350   let token = uuid::Uuid::new_v4().to_string();
 351
 352   // Insert the row
 353   let token2 = token.clone();
 354   let local_user_id = user.local_user.id;
 355   PasswordResetRequest::create_token(pool, local_user_id, &token2).await?;
 356
 357   let email = &user.local_user.email.clone().expect("email");
 358   let lang = get_interface_language(user);
 359   let subject = &lang.password_reset_subject(&user.person.name);
 360   let protocol_and_hostname = settings.get_protocol_and_hostname();
 361   let reset_link = format!("{}/password_change/{}", protocol_and_hostname, &token);
 362   let body = &lang.password_reset_body(reset_link, &user.person.name);
 363   send_email(subject, email, &user.person.name, body, settings)
 364 }
 365
 366 /// Send a verification email
 367 pub async fn send_verification_email(
 368   user: &LocalUserView,
 369   new_email: &str,
 370   pool: &DbPool,
 371   settings: &Settings,
 372 ) -> Result<(), LemmyError> {
 373   let form = EmailVerificationForm {
 374     local_user_id: user.local_user.id,
 375     email: new_email.to_string(),
 376     verification_token: uuid::Uuid::new_v4().to_string(),
 377   };
 378   let verify_link = format!(
 379     "{}/verify_email/{}",
 380     settings.get_protocol_and_hostname(),
 381     &form.verification_token
 382   );
 383   EmailVerification::create(pool, &form).await?;
 384
 385   let lang = get_interface_language(user);
 386   let subject = lang.verify_email_subject(&settings.hostname);
 387   let body = lang.verify_email_body(&settings.hostname, &user.person.name, verify_link);
 388   send_email(&subject, new_email, &user.person.name, &body, settings)?;
 389
 390   Ok(())
 391 }
 392
 393 pub fn get_interface_language(user: &LocalUserView) -> Lang {
 394   lang_str_to_lang(&user.local_user.interface_language)
 395 }
 396
 397 pub fn get_interface_language_from_settings(user: &LocalUserView) -> Lang {
 398   lang_str_to_lang(&user.local_user.interface_language)
 399 }
 400
 401 fn lang_str_to_lang(lang: &str) -> Lang {
 402   let lang_id = LanguageId::new(lang);
 403   Lang::from_language_id(&lang_id).unwrap_or_else(|| {
 404     let en = LanguageId::new("en");
 405     Lang::from_language_id(&en).expect("default language")
 406   })
 407 }
 408
 409 pub fn local_site_rate_limit_to_rate_limit_config(
 410   local_site_rate_limit: &LocalSiteRateLimit,
 411 ) -> RateLimitConfig {
 412   let l = local_site_rate_limit;
 413   RateLimitConfig {
 414     message: l.message,
 415     message_per_second: l.message_per_second,
 416     post: l.post,
 417     post_per_second: l.post_per_second,
 418     register: l.register,
 419     register_per_second: l.register_per_second,
 420     image: l.image,
 421     image_per_second: l.image_per_second,
 422     comment: l.comment,
 423     comment_per_second: l.comment_per_second,
 424     search: l.search,
 425     search_per_second: l.search_per_second,
 426   }
 427 }
 428
 429 pub fn local_site_to_slur_regex(local_site: &LocalSite) -> Option<Regex> {
 430   build_slur_regex(local_site.slur_filter_regex.as_deref())
 431 }
 432
 433 pub fn local_site_opt_to_slur_regex(local_site: &Option<LocalSite>) -> Option<Regex> {
 434   local_site
 435     .as_ref()
 436     .map(local_site_to_slur_regex)
 437     .unwrap_or(None)
 438 }
 439
 440 pub fn send_application_approved_email(
 441   user: &LocalUserView,
 442   settings: &Settings,
 443 ) -> Result<(), LemmyError> {
 444   let email = &user.local_user.email.clone().expect("email");
 445   let lang = get_interface_language(user);
 446   let subject = lang.registration_approved_subject(&user.person.actor_id);
 447   let body = lang.registration_approved_body(&settings.hostname);
 448   send_email(&subject, email, &user.person.name, &body, settings)
 449 }
 450
 451 /// Send a new applicant email notification to all admins
 452 pub async fn send_new_applicant_email_to_admins(
 453   applicant_username: &str,
 454   pool: &DbPool,
 455   settings: &Settings,
 456 ) -> Result<(), LemmyError> {
 457   // Collect the admins with emails
 458   let admins = LocalUserView::list_admins_with_emails(pool).await?;
 459
 460   let applications_link = &format!(
 461     "{}/registration_applications",
 462     settings.get_protocol_and_hostname(),
 463   );
 464
 465   for admin in &admins {
 466     let email = &admin.local_user.email.clone().expect("email");
 467     let lang = get_interface_language_from_settings(admin);
 468     let subject = lang.new_application_subject(&settings.hostname, applicant_username);
 469     let body = lang.new_application_body(applications_link);
 470     send_email(&subject, email, &admin.person.name, &body, settings)?;
 471   }
 472   Ok(())
 473 }
 474
 475 /// Send a report to all admins
 476 pub async fn send_new_report_email_to_admins(
 477   reporter_username: &str,
 478   reported_username: &str,
 479   pool: &DbPool,
 480   settings: &Settings,
 481 ) -> Result<(), LemmyError> {
 482   // Collect the admins with emails
 483   let admins = LocalUserView::list_admins_with_emails(pool).await?;
 484
 485   let reports_link = &format!("{}/reports", settings.get_protocol_and_hostname(),);
 486
 487   for admin in &admins {
 488     let email = &admin.local_user.email.clone().expect("email");
 489     let lang = get_interface_language_from_settings(admin);
 490     let subject = lang.new_report_subject(&settings.hostname, reported_username, reporter_username);
 491     let body = lang.new_report_body(reports_link);
 492     send_email(&subject, email, &admin.person.name, &body, settings)?;
 493   }
 494   Ok(())
 495 }
 496
 497 pub async fn check_registration_application(
 498   local_user_view: &LocalUserView,
 499   local_site: &LocalSite,
 500   pool: &DbPool,
 501 ) -> Result<(), LemmyError> {
 502   if (local_site.registration_mode == RegistrationMode::RequireApplication
 503     || local_site.registration_mode == RegistrationMode::Closed)
 504     && !local_user_view.local_user.accepted_application
 505     && !local_user_view.person.admin
 506   {
 507     // Fetch the registration, see if its denied
 508     let local_user_id = local_user_view.local_user.id;
 509     let registration = RegistrationApplication::find_by_local_user_id(pool, local_user_id).await?;
 510     if let Some(deny_reason) = registration.deny_reason {
 511       let lang = get_interface_language(local_user_view);
 512       let registration_denied_message = format!("{}: {}", lang.registration_denied(), &deny_reason);
 513       return Err(LemmyError::from_message(&registration_denied_message));
 514     } else {
 515       return Err(LemmyError::from_message("registration_application_pending"));
 516     }
 517   }
 518   Ok(())
 519 }
 520
 521 pub fn check_private_instance_and_federation_enabled(
 522   local_site: &LocalSite,
 523 ) -> Result<(), LemmyError> {
 524   if local_site.private_instance && local_site.federation_enabled {
 525     return Err(LemmyError::from_message(
 526       "Cannot have both private instance and federation enabled.",
 527     ));
 528   }
 529   Ok(())
 530 }
 531
 532 pub async fn purge_image_posts_for_person(
 533   banned_person_id: PersonId,
 534   pool: &DbPool,
 535   settings: &Settings,
 536   client: &ClientWithMiddleware,
 537 ) -> Result<(), LemmyError> {
 538   let posts = Post::fetch_pictrs_posts_for_creator(pool, banned_person_id).await?;
 539   for post in posts {
 540     if let Some(url) = post.url {
 541       purge_image_from_pictrs(client, settings, &url).await.ok();
 542     }
 543     if let Some(thumbnail_url) = post.thumbnail_url {
 544       purge_image_from_pictrs(client, settings, &thumbnail_url)
 545         .await
 546         .ok();
 547     }
 548   }
 549
 550   Post::remove_pictrs_post_images_and_thumbnails_for_creator(pool, banned_person_id).await?;
 551
 552   Ok(())
 553 }
 554
 555 pub async fn purge_image_posts_for_community(
 556   banned_community_id: CommunityId,
 557   pool: &DbPool,
 558   settings: &Settings,
 559   client: &ClientWithMiddleware,
 560 ) -> Result<(), LemmyError> {
 561   let posts = Post::fetch_pictrs_posts_for_community(pool, banned_community_id).await?;
 562   for post in posts {
 563     if let Some(url) = post.url {
 564       purge_image_from_pictrs(client, settings, &url).await.ok();
 565     }
 566     if let Some(thumbnail_url) = post.thumbnail_url {
 567       purge_image_from_pictrs(client, settings, &thumbnail_url)
 568         .await
 569         .ok();
 570     }
 571   }
 572
 573   Post::remove_pictrs_post_images_and_thumbnails_for_community(pool, banned_community_id).await?;
 574
 575   Ok(())
 576 }
 577
 578 pub async fn remove_user_data(
 579   banned_person_id: PersonId,
 580   pool: &DbPool,
 581   settings: &Settings,
 582   client: &ClientWithMiddleware,
 583 ) -> Result<(), LemmyError> {
 584   // Purge user images
 585   let person = Person::read(pool, banned_person_id).await?;
 586   if let Some(avatar) = person.avatar {
 587     purge_image_from_pictrs(client, settings, &avatar)
 588       .await
 589       .ok();
 590   }
 591   if let Some(banner) = person.banner {
 592     purge_image_from_pictrs(client, settings, &banner)
 593       .await
 594       .ok();
 595   }
 596
 597   // Update the fields to None
 598   Person::update(
 599     pool,
 600     banned_person_id,
 601     &PersonUpdateForm::builder()
 602       .avatar(Some(None))
 603       .banner(Some(None))
 604       .build(),
 605   )
 606   .await?;
 607
 608   // Posts
 609   Post::update_removed_for_creator(pool, banned_person_id, None, true).await?;
 610
 611   // Purge image posts
 612   purge_image_posts_for_person(banned_person_id, pool, settings, client).await?;
 613
 614   // Communities
 615   // Remove all communities where they're the top mod
 616   // for now, remove the communities manually
 617   let first_mod_communities = CommunityModeratorView::get_community_first_mods(pool).await?;
 618
 619   // Filter to only this banned users top communities
 620   let banned_user_first_communities: Vec<CommunityModeratorView> = first_mod_communities
 621     .into_iter()
 622     .filter(|fmc| fmc.moderator.id == banned_person_id)
 623     .collect();
 624
 625   for first_mod_community in banned_user_first_communities {
 626     let community_id = first_mod_community.community.id;
 627     Community::update(
 628       pool,
 629       community_id,
 630       &CommunityUpdateForm::builder().removed(Some(true)).build(),
 631     )
 632     .await?;
 633
 634     // Delete the community images
 635     if let Some(icon) = first_mod_community.community.icon {
 636       purge_image_from_pictrs(client, settings, &icon).await.ok();
 637     }
 638     if let Some(banner) = first_mod_community.community.banner {
 639       purge_image_from_pictrs(client, settings, &banner)
 640         .await
 641         .ok();
 642     }
 643     // Update the fields to None
 644     Community::update(
 645       pool,
 646       community_id,
 647       &CommunityUpdateForm::builder()
 648         .icon(Some(None))
 649         .banner(Some(None))
 650         .build(),
 651     )
 652     .await?;
 653   }
 654
 655   // Comments
 656   Comment::update_removed_for_creator(pool, banned_person_id, true).await?;
 657
 658   Ok(())
 659 }
 660
 661 pub async fn remove_user_data_in_community(
 662   community_id: CommunityId,
 663   banned_person_id: PersonId,
 664   pool: &DbPool,
 665 ) -> Result<(), LemmyError> {
 666   // Posts
 667   Post::update_removed_for_creator(pool, banned_person_id, Some(community_id), true).await?;
 668
 669   // Comments
 670   // TODO Diesel doesn't allow updates with joins, so this has to be a loop
 671   let comments = CommentQuery::builder()
 672     .pool(pool)
 673     .creator_id(Some(banned_person_id))
 674     .community_id(Some(community_id))
 675     .limit(Some(i64::MAX))
 676     .build()
 677     .list()
 678     .await?;
 679
 680   for comment_view in &comments {
 681     let comment_id = comment_view.comment.id;
 682     Comment::update(
 683       pool,
 684       comment_id,
 685       &CommentUpdateForm::builder().removed(Some(true)).build(),
 686     )
 687     .await?;
 688   }
 689
 690   Ok(())
 691 }
 692
 693 pub async fn delete_user_account(
 694   person_id: PersonId,
 695   pool: &DbPool,
 696   settings: &Settings,
 697   client: &ClientWithMiddleware,
 698 ) -> Result<(), LemmyError> {
 699   // Delete their images
 700   let person = Person::read(pool, person_id).await?;
 701   if let Some(avatar) = person.avatar {
 702     purge_image_from_pictrs(client, settings, &avatar)
 703       .await
 704       .ok();
 705   }
 706   if let Some(banner) = person.banner {
 707     purge_image_from_pictrs(client, settings, &banner)
 708       .await
 709       .ok();
 710   }
 711   // No need to update avatar and banner, those are handled in Person::delete_account
 712
 713   // Comments
 714   Comment::permadelete_for_creator(pool, person_id)
 715     .await
 716     .map_err(|e| LemmyError::from_error_message(e, "couldnt_update_comment"))?;
 717
 718   // Posts
 719   Post::permadelete_for_creator(pool, person_id)
 720     .await
 721     .map_err(|e| LemmyError::from_error_message(e, "couldnt_update_post"))?;
 722
 723   // Purge image posts
 724   purge_image_posts_for_person(person_id, pool, settings, client).await?;
 725
 726   // Leave communities they mod
 727   CommunityModerator::leave_all_communities(pool, person_id).await?;
 728
 729   Person::delete_account(pool, person_id).await?;
 730
 731   Ok(())
 732 }
 733
 734 #[cfg(test)]
 735 mod tests {
 736   use crate::utils::{honeypot_check, password_length_check};
 737
 738   #[test]
 739   #[rustfmt::skip]
 740   fn password_length() {
 741     assert!(password_length_check("Õ¼¾°3yË,o¸ãtÌÈú|ÇÁÙAøüÒI©·¤(T]/ð>æºWæ[C¤bªWöaÃÎñ·{=û³&§½K/c").is_ok());
 742     assert!(password_length_check("1234567890").is_ok());
 743     assert!(password_length_check("short").is_err());
 744     assert!(password_length_check("looooooooooooooooooooooooooooooooooooooooooooooooooooooooooong").is_err());
 745   }
 746
 747   #[test]
 748   fn honeypot() {
 749     assert!(honeypot_check(&None).is_ok());
 750     assert!(honeypot_check(&Some(String::new())).is_ok());
 751     assert!(honeypot_check(&Some("1".to_string())).is_err());
 752     assert!(honeypot_check(&Some("message".to_string())).is_err());
 753   }
 754 }
 755
 756 pub enum EndpointType {
 757   Community,
 758   Person,
 759   Post,
 760   Comment,
 761   PrivateMessage,
 762 }
 763
 764 /// Generates an apub endpoint for a given domain, IE xyz.tld
 765 pub fn generate_local_apub_endpoint(
 766   endpoint_type: EndpointType,
 767   name: &str,
 768   domain: &str,
 769 ) -> Result<DbUrl, ParseError> {
 770   let point = match endpoint_type {
 771     EndpointType::Community => "c",
 772     EndpointType::Person => "u",
 773     EndpointType::Post => "post",
 774     EndpointType::Comment => "comment",
 775     EndpointType::PrivateMessage => "private_message",
 776   };
 777
 778   Ok(Url::parse(&format!("{domain}/{point}/{name}"))?.into())
 779 }
 780
 781 pub fn generate_followers_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
 782   Ok(Url::parse(&format!("{actor_id}/followers"))?.into())
 783 }
 784
 785 pub fn generate_inbox_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
 786   Ok(Url::parse(&format!("{actor_id}/inbox"))?.into())
 787 }
 788
 789 pub fn generate_site_inbox_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
 790   let mut actor_id: Url = actor_id.clone().into();
 791   actor_id.set_path("site_inbox");
 792   Ok(actor_id.into())
 793 }
 794
 795 pub fn generate_shared_inbox_url(actor_id: &DbUrl) -> Result<DbUrl, LemmyError> {
 796   let actor_id: Url = actor_id.clone().into();
 797   let url = format!(
 798     "{}://{}{}/inbox",
 799     &actor_id.scheme(),
 800     &actor_id.host_str().context(location_info!())?,
 801     if let Some(port) = actor_id.port() {
 802       format!(":{port}")
 803     } else {
 804       String::new()
 805     },
 806   );
 807   Ok(Url::parse(&url)?.into())
 808 }
 809
 810 pub fn generate_outbox_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
 811   Ok(Url::parse(&format!("{actor_id}/outbox"))?.into())
 812 }
 813
 814 pub fn generate_featured_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
 815   Ok(Url::parse(&format!("{actor_id}/featured"))?.into())
 816 }
 817
 818 pub fn generate_moderators_url(community_id: &DbUrl) -> Result<DbUrl, LemmyError> {
 819   Ok(Url::parse(&format!("{community_id}/moderators"))?.into())
 820 }