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 for a honeypot. If this field is filled, fail the rest of the function
 303 pub fn honeypot_check(honeypot: &Option<String>) -> Result<(), LemmyError> {
 304   if honeypot.is_some() && honeypot != &Some(String::new()) {
 305     Err(LemmyError::from_message("honeypot_fail"))
 306   } else {
 307     Ok(())
 308   }
 309 }
 310
 311 pub fn send_email_to_user(
 312   local_user_view: &LocalUserView,
 313   subject: &str,
 314   body: &str,
 315   settings: &Settings,
 316 ) {
 317   if local_user_view.person.banned || !local_user_view.local_user.send_notifications_to_email {
 318     return;
 319   }
 320
 321   if let Some(user_email) = &local_user_view.local_user.email {
 322     match send_email(
 323       subject,
 324       user_email,
 325       &local_user_view.person.name,
 326       body,
 327       settings,
 328     ) {
 329       Ok(_o) => _o,
 330       Err(e) => warn!("{}", e),
 331     };
 332   }
 333 }
 334
 335 pub async fn send_password_reset_email(
 336   user: &LocalUserView,
 337   pool: &DbPool,
 338   settings: &Settings,
 339 ) -> Result<(), LemmyError> {
 340   // Generate a random token
 341   let token = uuid::Uuid::new_v4().to_string();
 342
 343   // Insert the row
 344   let token2 = token.clone();
 345   let local_user_id = user.local_user.id;
 346   PasswordResetRequest::create_token(pool, local_user_id, &token2).await?;
 347
 348   let email = &user.local_user.email.clone().expect("email");
 349   let lang = get_interface_language(user);
 350   let subject = &lang.password_reset_subject(&user.person.name);
 351   let protocol_and_hostname = settings.get_protocol_and_hostname();
 352   let reset_link = format!("{}/password_change/{}", protocol_and_hostname, &token);
 353   let body = &lang.password_reset_body(reset_link, &user.person.name);
 354   send_email(subject, email, &user.person.name, body, settings)
 355 }
 356
 357 /// Send a verification email
 358 pub async fn send_verification_email(
 359   user: &LocalUserView,
 360   new_email: &str,
 361   pool: &DbPool,
 362   settings: &Settings,
 363 ) -> Result<(), LemmyError> {
 364   let form = EmailVerificationForm {
 365     local_user_id: user.local_user.id,
 366     email: new_email.to_string(),
 367     verification_token: uuid::Uuid::new_v4().to_string(),
 368   };
 369   let verify_link = format!(
 370     "{}/verify_email/{}",
 371     settings.get_protocol_and_hostname(),
 372     &form.verification_token
 373   );
 374   EmailVerification::create(pool, &form).await?;
 375
 376   let lang = get_interface_language(user);
 377   let subject = lang.verify_email_subject(&settings.hostname);
 378   let body = lang.verify_email_body(&settings.hostname, &user.person.name, verify_link);
 379   send_email(&subject, new_email, &user.person.name, &body, settings)?;
 380
 381   Ok(())
 382 }
 383
 384 pub fn get_interface_language(user: &LocalUserView) -> Lang {
 385   lang_str_to_lang(&user.local_user.interface_language)
 386 }
 387
 388 pub fn get_interface_language_from_settings(user: &LocalUserView) -> Lang {
 389   lang_str_to_lang(&user.local_user.interface_language)
 390 }
 391
 392 fn lang_str_to_lang(lang: &str) -> Lang {
 393   let lang_id = LanguageId::new(lang);
 394   Lang::from_language_id(&lang_id).unwrap_or_else(|| {
 395     let en = LanguageId::new("en");
 396     Lang::from_language_id(&en).expect("default language")
 397   })
 398 }
 399
 400 pub fn local_site_rate_limit_to_rate_limit_config(
 401   local_site_rate_limit: &LocalSiteRateLimit,
 402 ) -> RateLimitConfig {
 403   let l = local_site_rate_limit;
 404   RateLimitConfig {
 405     message: l.message,
 406     message_per_second: l.message_per_second,
 407     post: l.post,
 408     post_per_second: l.post_per_second,
 409     register: l.register,
 410     register_per_second: l.register_per_second,
 411     image: l.image,
 412     image_per_second: l.image_per_second,
 413     comment: l.comment,
 414     comment_per_second: l.comment_per_second,
 415     search: l.search,
 416     search_per_second: l.search_per_second,
 417   }
 418 }
 419
 420 pub fn local_site_to_slur_regex(local_site: &LocalSite) -> Option<Regex> {
 421   build_slur_regex(local_site.slur_filter_regex.as_deref())
 422 }
 423
 424 pub fn local_site_opt_to_slur_regex(local_site: &Option<LocalSite>) -> Option<Regex> {
 425   local_site
 426     .as_ref()
 427     .map(local_site_to_slur_regex)
 428     .unwrap_or(None)
 429 }
 430
 431 pub fn local_site_opt_to_sensitive(local_site: &Option<LocalSite>) -> bool {
 432   local_site
 433     .as_ref()
 434     .map(|site| site.enable_nsfw)
 435     .unwrap_or(false)
 436 }
 437
 438 pub fn send_application_approved_email(
 439   user: &LocalUserView,
 440   settings: &Settings,
 441 ) -> Result<(), LemmyError> {
 442   let email = &user.local_user.email.clone().expect("email");
 443   let lang = get_interface_language(user);
 444   let subject = lang.registration_approved_subject(&user.person.actor_id);
 445   let body = lang.registration_approved_body(&settings.hostname);
 446   send_email(&subject, email, &user.person.name, &body, settings)
 447 }
 448
 449 /// Send a new applicant email notification to all admins
 450 pub async fn send_new_applicant_email_to_admins(
 451   applicant_username: &str,
 452   pool: &DbPool,
 453   settings: &Settings,
 454 ) -> Result<(), LemmyError> {
 455   // Collect the admins with emails
 456   let admins = LocalUserView::list_admins_with_emails(pool).await?;
 457
 458   let applications_link = &format!(
 459     "{}/registration_applications",
 460     settings.get_protocol_and_hostname(),
 461   );
 462
 463   for admin in &admins {
 464     let email = &admin.local_user.email.clone().expect("email");
 465     let lang = get_interface_language_from_settings(admin);
 466     let subject = lang.new_application_subject(&settings.hostname, applicant_username);
 467     let body = lang.new_application_body(applications_link);
 468     send_email(&subject, email, &admin.person.name, &body, settings)?;
 469   }
 470   Ok(())
 471 }
 472
 473 /// Send a report to all admins
 474 pub async fn send_new_report_email_to_admins(
 475   reporter_username: &str,
 476   reported_username: &str,
 477   pool: &DbPool,
 478   settings: &Settings,
 479 ) -> Result<(), LemmyError> {
 480   // Collect the admins with emails
 481   let admins = LocalUserView::list_admins_with_emails(pool).await?;
 482
 483   let reports_link = &format!("{}/reports", settings.get_protocol_and_hostname(),);
 484
 485   for admin in &admins {
 486     let email = &admin.local_user.email.clone().expect("email");
 487     let lang = get_interface_language_from_settings(admin);
 488     let subject = lang.new_report_subject(&settings.hostname, reported_username, reporter_username);
 489     let body = lang.new_report_body(reports_link);
 490     send_email(&subject, email, &admin.person.name, &body, settings)?;
 491   }
 492   Ok(())
 493 }
 494
 495 pub async fn check_registration_application(
 496   local_user_view: &LocalUserView,
 497   local_site: &LocalSite,
 498   pool: &DbPool,
 499 ) -> Result<(), LemmyError> {
 500   if (local_site.registration_mode == RegistrationMode::RequireApplication
 501     || local_site.registration_mode == RegistrationMode::Closed)
 502     && !local_user_view.local_user.accepted_application
 503     && !local_user_view.person.admin
 504   {
 505     // Fetch the registration, see if its denied
 506     let local_user_id = local_user_view.local_user.id;
 507     let registration = RegistrationApplication::find_by_local_user_id(pool, local_user_id).await?;
 508     if let Some(deny_reason) = registration.deny_reason {
 509       let lang = get_interface_language(local_user_view);
 510       let registration_denied_message = format!("{}: {}", lang.registration_denied(), &deny_reason);
 511       return Err(LemmyError::from_message(&registration_denied_message));
 512     } else {
 513       return Err(LemmyError::from_message("registration_application_pending"));
 514     }
 515   }
 516   Ok(())
 517 }
 518
 519 pub fn check_private_instance_and_federation_enabled(
 520   local_site: &LocalSite,
 521 ) -> Result<(), LemmyError> {
 522   if local_site.private_instance && local_site.federation_enabled {
 523     return Err(LemmyError::from_message(
 524       "Cannot have both private instance and federation enabled.",
 525     ));
 526   }
 527   Ok(())
 528 }
 529
 530 pub async fn purge_image_posts_for_person(
 531   banned_person_id: PersonId,
 532   pool: &DbPool,
 533   settings: &Settings,
 534   client: &ClientWithMiddleware,
 535 ) -> Result<(), LemmyError> {
 536   let posts = Post::fetch_pictrs_posts_for_creator(pool, banned_person_id).await?;
 537   for post in posts {
 538     if let Some(url) = post.url {
 539       purge_image_from_pictrs(client, settings, &url).await.ok();
 540     }
 541     if let Some(thumbnail_url) = post.thumbnail_url {
 542       purge_image_from_pictrs(client, settings, &thumbnail_url)
 543         .await
 544         .ok();
 545     }
 546   }
 547
 548   Post::remove_pictrs_post_images_and_thumbnails_for_creator(pool, banned_person_id).await?;
 549
 550   Ok(())
 551 }
 552
 553 pub async fn purge_image_posts_for_community(
 554   banned_community_id: CommunityId,
 555   pool: &DbPool,
 556   settings: &Settings,
 557   client: &ClientWithMiddleware,
 558 ) -> Result<(), LemmyError> {
 559   let posts = Post::fetch_pictrs_posts_for_community(pool, banned_community_id).await?;
 560   for post in posts {
 561     if let Some(url) = post.url {
 562       purge_image_from_pictrs(client, settings, &url).await.ok();
 563     }
 564     if let Some(thumbnail_url) = post.thumbnail_url {
 565       purge_image_from_pictrs(client, settings, &thumbnail_url)
 566         .await
 567         .ok();
 568     }
 569   }
 570
 571   Post::remove_pictrs_post_images_and_thumbnails_for_community(pool, banned_community_id).await?;
 572
 573   Ok(())
 574 }
 575
 576 pub async fn remove_user_data(
 577   banned_person_id: PersonId,
 578   pool: &DbPool,
 579   settings: &Settings,
 580   client: &ClientWithMiddleware,
 581 ) -> Result<(), LemmyError> {
 582   // Purge user images
 583   let person = Person::read(pool, banned_person_id).await?;
 584   if let Some(avatar) = person.avatar {
 585     purge_image_from_pictrs(client, settings, &avatar)
 586       .await
 587       .ok();
 588   }
 589   if let Some(banner) = person.banner {
 590     purge_image_from_pictrs(client, settings, &banner)
 591       .await
 592       .ok();
 593   }
 594
 595   // Update the fields to None
 596   Person::update(
 597     pool,
 598     banned_person_id,
 599     &PersonUpdateForm::builder()
 600       .avatar(Some(None))
 601       .banner(Some(None))
 602       .build(),
 603   )
 604   .await?;
 605
 606   // Posts
 607   Post::update_removed_for_creator(pool, banned_person_id, None, true).await?;
 608
 609   // Purge image posts
 610   purge_image_posts_for_person(banned_person_id, pool, settings, client).await?;
 611
 612   // Communities
 613   // Remove all communities where they're the top mod
 614   // for now, remove the communities manually
 615   let first_mod_communities = CommunityModeratorView::get_community_first_mods(pool).await?;
 616
 617   // Filter to only this banned users top communities
 618   let banned_user_first_communities: Vec<CommunityModeratorView> = first_mod_communities
 619     .into_iter()
 620     .filter(|fmc| fmc.moderator.id == banned_person_id)
 621     .collect();
 622
 623   for first_mod_community in banned_user_first_communities {
 624     let community_id = first_mod_community.community.id;
 625     Community::update(
 626       pool,
 627       community_id,
 628       &CommunityUpdateForm::builder().removed(Some(true)).build(),
 629     )
 630     .await?;
 631
 632     // Delete the community images
 633     if let Some(icon) = first_mod_community.community.icon {
 634       purge_image_from_pictrs(client, settings, &icon).await.ok();
 635     }
 636     if let Some(banner) = first_mod_community.community.banner {
 637       purge_image_from_pictrs(client, settings, &banner)
 638         .await
 639         .ok();
 640     }
 641     // Update the fields to None
 642     Community::update(
 643       pool,
 644       community_id,
 645       &CommunityUpdateForm::builder()
 646         .icon(Some(None))
 647         .banner(Some(None))
 648         .build(),
 649     )
 650     .await?;
 651   }
 652
 653   // Comments
 654   Comment::update_removed_for_creator(pool, banned_person_id, true).await?;
 655
 656   Ok(())
 657 }
 658
 659 pub async fn remove_user_data_in_community(
 660   community_id: CommunityId,
 661   banned_person_id: PersonId,
 662   pool: &DbPool,
 663 ) -> Result<(), LemmyError> {
 664   // Posts
 665   Post::update_removed_for_creator(pool, banned_person_id, Some(community_id), true).await?;
 666
 667   // Comments
 668   // TODO Diesel doesn't allow updates with joins, so this has to be a loop
 669   let comments = CommentQuery::builder()
 670     .pool(pool)
 671     .creator_id(Some(banned_person_id))
 672     .community_id(Some(community_id))
 673     .build()
 674     .list()
 675     .await?;
 676
 677   for comment_view in &comments {
 678     let comment_id = comment_view.comment.id;
 679     Comment::update(
 680       pool,
 681       comment_id,
 682       &CommentUpdateForm::builder().removed(Some(true)).build(),
 683     )
 684     .await?;
 685   }
 686
 687   Ok(())
 688 }
 689
 690 pub async fn delete_user_account(
 691   person_id: PersonId,
 692   pool: &DbPool,
 693   settings: &Settings,
 694   client: &ClientWithMiddleware,
 695 ) -> Result<(), LemmyError> {
 696   // Delete their images
 697   let person = Person::read(pool, person_id).await?;
 698   if let Some(avatar) = person.avatar {
 699     purge_image_from_pictrs(client, settings, &avatar)
 700       .await
 701       .ok();
 702   }
 703   if let Some(banner) = person.banner {
 704     purge_image_from_pictrs(client, settings, &banner)
 705       .await
 706       .ok();
 707   }
 708   // No need to update avatar and banner, those are handled in Person::delete_account
 709
 710   // Comments
 711   Comment::permadelete_for_creator(pool, person_id)
 712     .await
 713     .map_err(|e| LemmyError::from_error_message(e, "couldnt_update_comment"))?;
 714
 715   // Posts
 716   Post::permadelete_for_creator(pool, person_id)
 717     .await
 718     .map_err(|e| LemmyError::from_error_message(e, "couldnt_update_post"))?;
 719
 720   // Purge image posts
 721   purge_image_posts_for_person(person_id, pool, settings, client).await?;
 722
 723   // Leave communities they mod
 724   CommunityModerator::leave_all_communities(pool, person_id).await?;
 725
 726   Person::delete_account(pool, person_id).await?;
 727
 728   Ok(())
 729 }
 730
 731 #[cfg(test)]
 732 mod tests {
 733   use crate::utils::{honeypot_check, password_length_check};
 734
 735   #[test]
 736   #[rustfmt::skip]
 737   fn password_length() {
 738     assert!(password_length_check("Õ¼¾°3yË,o¸ãtÌÈú|ÇÁÙAøüÒI©·¤(T]/ð>æºWæ[C¤bªWöaÃÎñ·{=û³&§½K/c").is_ok());
 739     assert!(password_length_check("1234567890").is_ok());
 740     assert!(password_length_check("short").is_err());
 741     assert!(password_length_check("looooooooooooooooooooooooooooooooooooooooooooooooooooooooooong").is_err());
 742   }
 743
 744   #[test]
 745   fn honeypot() {
 746     assert!(honeypot_check(&None).is_ok());
 747     assert!(honeypot_check(&Some(String::new())).is_ok());
 748     assert!(honeypot_check(&Some("1".to_string())).is_err());
 749     assert!(honeypot_check(&Some("message".to_string())).is_err());
 750   }
 751 }
 752
 753 pub enum EndpointType {
 754   Community,
 755   Person,
 756   Post,
 757   Comment,
 758   PrivateMessage,
 759 }
 760
 761 /// Generates an apub endpoint for a given domain, IE xyz.tld
 762 pub fn generate_local_apub_endpoint(
 763   endpoint_type: EndpointType,
 764   name: &str,
 765   domain: &str,
 766 ) -> Result<DbUrl, ParseError> {
 767   let point = match endpoint_type {
 768     EndpointType::Community => "c",
 769     EndpointType::Person => "u",
 770     EndpointType::Post => "post",
 771     EndpointType::Comment => "comment",
 772     EndpointType::PrivateMessage => "private_message",
 773   };
 774
 775   Ok(Url::parse(&format!("{domain}/{point}/{name}"))?.into())
 776 }
 777
 778 pub fn generate_followers_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
 779   Ok(Url::parse(&format!("{actor_id}/followers"))?.into())
 780 }
 781
 782 pub fn generate_inbox_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
 783   Ok(Url::parse(&format!("{actor_id}/inbox"))?.into())
 784 }
 785
 786 pub fn generate_site_inbox_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
 787   let mut actor_id: Url = actor_id.clone().into();
 788   actor_id.set_path("site_inbox");
 789   Ok(actor_id.into())
 790 }
 791
 792 pub fn generate_shared_inbox_url(actor_id: &DbUrl) -> Result<DbUrl, LemmyError> {
 793   let actor_id: Url = actor_id.clone().into();
 794   let url = format!(
 795     "{}://{}{}/inbox",
 796     &actor_id.scheme(),
 797     &actor_id.host_str().context(location_info!())?,
 798     if let Some(port) = actor_id.port() {
 799       format!(":{port}")
 800     } else {
 801       String::new()
 802     },
 803   );
 804   Ok(Url::parse(&url)?.into())
 805 }
 806
 807 pub fn generate_outbox_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
 808   Ok(Url::parse(&format!("{actor_id}/outbox"))?.into())
 809 }
 810
 811 pub fn generate_featured_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
 812   Ok(Url::parse(&format!("{actor_id}/featured"))?.into())
 813 }
 814
 815 pub fn generate_moderators_url(community_id: &DbUrl) -> Result<DbUrl, LemmyError> {
 816   Ok(Url::parse(&format!("{community_id}/moderators"))?.into())
 817 }