package user import ( "fmt" "net/http" "codeberg.org/u1f320/pronouns.cc/backend/common" "codeberg.org/u1f320/pronouns.cc/backend/db" "codeberg.org/u1f320/pronouns.cc/backend/log" "codeberg.org/u1f320/pronouns.cc/backend/server" "emperror.dev/errors" "github.com/go-chi/render" "github.com/google/uuid" ) type PatchUserRequest struct { Username *string `json:"username"` DisplayName *string `json:"display_name"` Bio *string `json:"bio"` MemberTitle *string `json:"member_title"` Links *[]string `json:"links"` Names *[]db.FieldEntry `json:"names"` Pronouns *[]db.PronounEntry `json:"pronouns"` Fields *[]db.Field `json:"fields"` Avatar *string `json:"avatar"` ListPrivate *bool `json:"list_private"` CustomPreferences *db.CustomPreferences `json:"custom_preferences"` } // patchUser parses a PatchUserRequest and updates the user with the given ID. func (s *Server) patchUser(w http.ResponseWriter, r *http.Request) error { ctx := r.Context() claims, _ := server.ClaimsFromContext(ctx) if !claims.TokenWrite { return server.APIError{Code: server.ErrMissingPermissions, Details: "This token is read-only"} } var req PatchUserRequest err := render.Decode(r, &req) if err != nil { return server.APIError{Code: server.ErrBadRequest} } // get existing user, for comparison later u, err := s.DB.User(ctx, claims.UserID) if err != nil { return errors.Wrap(err, "getting existing user") } // validate that *something* is set if req.Username == nil && req.DisplayName == nil && req.Bio == nil && req.MemberTitle == nil && req.ListPrivate == nil && req.Links == nil && req.Fields == nil && req.Names == nil && req.Pronouns == nil && req.Avatar == nil && req.CustomPreferences == nil { return server.APIError{ Code: server.ErrBadRequest, Details: "Data must not be empty", } } // validate display name/bio if common.StringLength(req.Username) > db.MaxUsernameLength { return server.APIError{ Code: server.ErrBadRequest, Details: fmt.Sprintf("Name name too long (max %d, current %d)", db.MaxUsernameLength, common.StringLength(req.Username)), } } if common.StringLength(req.DisplayName) > db.MaxDisplayNameLength { return server.APIError{ Code: server.ErrBadRequest, Details: fmt.Sprintf("Display name too long (max %d, current %d)", db.MaxDisplayNameLength, common.StringLength(req.DisplayName)), } } if common.StringLength(req.Bio) > db.MaxUserBioLength { return server.APIError{ Code: server.ErrBadRequest, Details: fmt.Sprintf("Bio too long (max %d, current %d)", db.MaxUserBioLength, common.StringLength(req.Bio)), } } // validate links if req.Links != nil { if len(*req.Links) > db.MaxUserLinksLength { return server.APIError{ Code: server.ErrBadRequest, Details: fmt.Sprintf("Too many links (max %d, current %d)", db.MaxUserLinksLength, len(*req.Links)), } } for i, link := range *req.Links { if len(link) > db.MaxLinkLength { return server.APIError{ Code: server.ErrBadRequest, Details: fmt.Sprintf("Link %d too long (max %d, current %d)", i, db.MaxLinkLength, len(link)), } } } } if err := validateSlicePtr("name", req.Names, u.CustomPreferences); err != nil { return *err } if err := validateSlicePtr("pronoun", req.Pronouns, u.CustomPreferences); err != nil { return *err } if err := validateSlicePtr("field", req.Fields, u.CustomPreferences); err != nil { return *err } // validate custom preferences if req.CustomPreferences != nil { for k, v := range *req.CustomPreferences { _, err := uuid.Parse(k) if err != nil { return server.APIError{Code: server.ErrBadRequest, Details: "One or more custom preference IDs is not a UUID."} } if s := v.Validate(); s != "" { return server.APIError{Code: server.ErrBadRequest, Details: s} } } } // update avatar var avatarHash *string = nil if req.Avatar != nil { if *req.Avatar == "" { if u.Avatar != nil { err = s.DB.DeleteUserAvatar(ctx, u.ID, *u.Avatar) if err != nil { log.Errorf("deleting user avatar: %v", err) return errors.Wrap(err, "deleting avatar") } } avatarHash = req.Avatar } else { webp, jpg, err := s.DB.ConvertAvatar(*req.Avatar) if err != nil { if err == db.ErrInvalidDataURI { return server.APIError{ Code: server.ErrBadRequest, Details: "invalid avatar data URI", } } else if err == db.ErrInvalidContentType { return server.APIError{ Code: server.ErrBadRequest, Details: "invalid avatar content type", } } log.Errorf("converting user avatar: %v", err) return err } hash, err := s.DB.WriteUserAvatar(ctx, claims.UserID, webp, jpg) if err != nil { log.Errorf("uploading user avatar: %v", err) return err } avatarHash = &hash // delete current avatar if user has one if u.Avatar != nil { err = s.DB.DeleteUserAvatar(ctx, claims.UserID, *u.Avatar) if err != nil { log.Errorf("deleting existing avatar: %v", err) } } } } // start transaction tx, err := s.DB.Begin(ctx) if err != nil { log.Errorf("creating transaction: %v", err) return err } defer tx.Rollback(ctx) // update username if req.Username != nil && *req.Username != u.Username { err = s.DB.UpdateUsername(ctx, tx, claims.UserID, *req.Username) if err != nil { switch err { case db.ErrUsernameTaken: return server.APIError{Code: server.ErrUsernameTaken} case db.ErrInvalidUsername: return server.APIError{Code: server.ErrInvalidUsername} default: return errors.Wrap(err, "updating username") } } } u, err = s.DB.UpdateUser(ctx, tx, claims.UserID, req.DisplayName, req.Bio, req.MemberTitle, req.ListPrivate, req.Links, avatarHash, req.CustomPreferences) if err != nil && errors.Cause(err) != db.ErrNothingToUpdate { log.Errorf("updating user: %v", err) return err } if req.Names != nil || req.Pronouns != nil { names := u.Names pronouns := u.Pronouns if req.Names != nil { names = *req.Names } if req.Pronouns != nil { pronouns = *req.Pronouns } err = s.DB.SetUserNamesPronouns(ctx, tx, claims.UserID, names, pronouns) if err != nil { log.Errorf("setting names for member %v: %v", claims.UserID, err) return err } u.Names = names u.Pronouns = pronouns } var fields []db.Field if req.Fields != nil { err = s.DB.SetUserFields(ctx, tx, claims.UserID, *req.Fields) if err != nil { log.Errorf("setting fields for user %v: %v", claims.UserID, err) return err } fields = *req.Fields } else { fields, err = s.DB.UserFields(ctx, claims.UserID) if err != nil { log.Errorf("getting fields for user %v: %v", claims.UserID, err) return err } } err = tx.Commit(ctx) if err != nil { log.Errorf("committing transaction: %v", err) return err } // get fedi instance name if the user has a linked fedi account var fediInstance *string if u.FediverseAppID != nil { app, err := s.DB.FediverseAppByID(ctx, *u.FediverseAppID) if err == nil { fediInstance = &app.Instance } } // echo the updated user back on success render.JSON(w, r, GetMeResponse{ GetUserResponse: dbUserToResponse(u, fields, nil), MaxInvites: u.MaxInvites, IsAdmin: u.IsAdmin, ListPrivate: u.ListPrivate, Discord: u.Discord, DiscordUsername: u.DiscordUsername, Tumblr: u.Tumblr, TumblrUsername: u.TumblrUsername, Google: u.Google, GoogleUsername: u.GoogleUsername, Fediverse: u.Fediverse, FediverseUsername: u.FediverseUsername, FediverseInstance: fediInstance, }) return nil } type validator interface { Validate(custom db.CustomPreferences) string } // validateSlicePtr validates a slice of validators. // If the slice is nil, a nil error is returned (assuming that the field is not required) func validateSlicePtr[T validator](typ string, slice *[]T, custom db.CustomPreferences) *server.APIError { if slice == nil { return nil } max := db.MaxFields if typ != "field" { max = db.FieldEntriesLimit } // max 25 fields if len(*slice) > max { return &server.APIError{ Code: server.ErrBadRequest, Details: fmt.Sprintf("Too many %ss (max %d, current %d)", typ, max, len(*slice)), } } // validate all fields for i, pronouns := range *slice { if s := pronouns.Validate(custom); s != "" { return &server.APIError{ Code: server.ErrBadRequest, Details: fmt.Sprintf("%s %d: %s", typ, i+1, s), } } } return nil }