/emails: add more search options.

Add options to search for invalid emails and emails from restricted
domains.

app/logical/email_validator.rb

@@ -3,6 +3,10 @@ require 'resolv'
 module EmailValidator
   module_function
 
+  # https://www.regular-expressions.info/email.html
+  EMAIL_REGEX = /\A[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}\z/
+  POSTGRES_EMAIL_REGEX = "[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}"
+
   IGNORE_DOTS = %w[gmail.com]
   IGNORE_PLUS_ADDRESSING = %w[gmail.com hotmail.com outlook.com live.com]
   IGNORE_MINUS_ADDRESSING = %w[yahoo.com]
@@ -80,10 +84,17 @@ module EmailValidator
     "#{name}@#{domain}"
   end
 
-  def nondisposable?(address)
-    return true if Danbooru.config.email_domain_verification_list.blank?
+  def is_valid?(address)
+    address.match?(EMAIL_REGEX)
+  end
+
+  def is_restricted?(address)
+    return false if Danbooru.config.email_domain_verification_list.blank?
+
     domain = Mail::Address.new(address).domain
-    domain.in?(Danbooru.config.email_domain_verification_list.to_a)
+    !domain.in?(Danbooru.config.email_domain_verification_list.to_a)
+  rescue Mail::Field::IncompleteParseError
+    true
   end
 
   def undeliverable?(to_address, from_address: Danbooru.config.contact_email, timeout: 3)

app/models/email_address.rb

@@ -1,10 +1,7 @@
 class EmailAddress < ApplicationRecord
-  # https://www.regular-expressions.info/email.html
-  EMAIL_REGEX = /\A[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}\z/
-
   belongs_to :user, inverse_of: :email_address
 
-  validates :address, presence: true, confirmation: true, format: { with: EMAIL_REGEX }
+  validates :address, presence: true, confirmation: true, format: { with: EmailValidator::EMAIL_REGEX }
   validates :normalized_address, uniqueness: true
   validates :user_id, uniqueness: true
   validate :validate_deliverable, on: :deliverable
@@ -23,8 +20,49 @@ class EmailAddress < ApplicationRecord
     super
   end
 
-  def nondisposable?
-    EmailValidator.nondisposable?(normalized_address)
+  def is_restricted?
+    EmailValidator.is_restricted?(normalized_address)
+  end
+
+  def is_normalized?
+    address == normalized_address
+  end
+
+  def is_valid?
+    EmailValidator.is_valid?(address)
+  end
+
+  def self.restricted(restricted = true)
+    domains = Danbooru.config.email_domain_verification_list
+    domain_regex = domains.map { |domain| Regexp.escape(domain) }.join("|")
+
+    if restricted.to_s.truthy?
+      where_not_regex(:normalized_address, "@(#{domain_regex})$")
+    elsif restricted.to_s.falsy?
+      where_regex(:normalized_address, "@(#{domain_regex})$")
+    else
+      all
+    end
+  end
+
+  def self.valid(valid = true)
+    if valid.to_s.truthy?
+      where_regex(:address, EmailValidator::POSTGRES_EMAIL_REGEX.to_s)
+    elsif valid.to_s.falsy?
+      where_not_regex(:address, EmailValidator::POSTGRES_EMAIL_REGEX.to_s)
+    else
+      all
+    end
+  end
+
+  def self.search(params)
+    q = search_attributes(params, :id, :created_at, :updated_at, :user, :address, :normalized_address, :is_verified, :is_deliverable)
+
+    q = q.restricted(params[:is_restricted])
+    q = q.valid(params[:is_valid])
+    q = q.apply_default_order(params)
+
+    q
   end
 
   def validate_deliverable
@@ -34,14 +72,7 @@ class EmailAddress < ApplicationRecord
   end
 
   def update_user
-    user.update!(is_verified: is_verified? && nondisposable?)
-  end
-
-  def self.search(params)
-    q = search_attributes(params, :id, :created_at, :updated_at, :user, :address, :normalized_address, :is_verified, :is_deliverable)
-    q = q.apply_default_order(params)
-
-    q
+    user.update!(is_verified: is_verified? && !is_restricted?)
   end
 
   concerning :VerificationMethods do

app/views/emails/index.html.erb

@@ -5,8 +5,11 @@
         <%= fa.input :name, label: "User Name", input_html: { value: params.dig(:search, :user, :name), "data-autocomplete": "user" } %>
       <% end %>
 
-      <%= f.input :address_ilike, label: "Address", input_html: { value: params[:search][:address] }, hint: "Use * for wildcard" %>
-      <%= f.input :is_verified, label: "Verified?", collection: %w[Yes No], selected: params[:search][:is_verified] %>
+      <%= f.input :address_ilike, label: "Address", input_html: { value: params[:search][:address_ilike] }, hint: "Use * for wildcard" %>
+      <%= f.input :normalized_address_ilike, label: "Normalized Address", input_html: { value: params[:search][:normalized_address_ilike] }, hint: "Use * for wildcard" %>
+      <%= f.input :is_valid, label: "Valid?", as: :select, include_blank: true, selected: params[:search][:is_valid] %>
+      <%= f.input :is_verified, label: "Verified?", as: :select, include_blank: true, selected: params[:search][:is_verified] %>
+      <%= f.input :is_restricted, label: "Restricted?", as: :select, include_blank: true, selected: params[:search][:is_restricted] %>
       <%= f.submit "Search" %>
     <% end %>
 
@@ -14,8 +17,25 @@
       <% t.column :user do |email| %>
         <%= link_to_user email.user %>
       <% end %>
-      <% t.column :address %>
-      <% t.column :is_verified, name: "Verified?" do |email| %>
+      <% t.column :address do |email| %>
+        <%= link_to email.address, emails_path(search: { address_ilike: email.address }) %>
+      <% end %>
+      <% t.column :normalized_address do |email| %>
+        <% unless email.is_normalized? %>
+          <%= link_to email.normalized_address, emails_path(search: { normalized_address_ilike: email.normalized_address }) %>
+        <% end %>
+      <% end %>
+      <% t.column "Valid?" do |email| %>
+        <% if !email.is_valid? %>
+          <%= link_to "No", emails_path(search: { is_valid: false }) %>
+        <% end %>
+      <% end %>
+      <% t.column "Restricted?" do |email| %>
+        <% if email.is_restricted? %>
+          <%= link_to "Yes", emails_path(search: { is_restricted: true }) %>
+        <% end %>
+      <% end %>
+      <% t.column "Verified?" do |email| %>
         <% if email.is_verified? %>
           <%= link_to "Yes", emails_path(search: { is_verified: true }) %>
         <% else %>