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Diffstat (limited to 'actionmailer/lib')
22 files changed, 2425 insertions, 0 deletions
diff --git a/actionmailer/lib/action_mailer.rb b/actionmailer/lib/action_mailer.rb new file mode 100644 index 0000000000..48f16180be --- /dev/null +++ b/actionmailer/lib/action_mailer.rb @@ -0,0 +1,70 @@ +# frozen_string_literal: true + +#-- +# Copyright (c) 2004-2018 David Heinemeier Hansson +# +# Permission is hereby granted, free of charge, to any person obtaining +# a copy of this software and associated documentation files (the +# "Software"), to deal in the Software without restriction, including +# without limitation the rights to use, copy, modify, merge, publish, +# distribute, sublicense, and/or sell copies of the Software, and to +# permit persons to whom the Software is furnished to do so, subject to +# the following conditions: +# +# The above copyright notice and this permission notice shall be +# included in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +#++ + +require "abstract_controller" +require "action_mailer/version" + +# Common Active Support usage in Action Mailer +require "active_support" +require "active_support/rails" +require "active_support/core_ext/class" +require "active_support/core_ext/module/attr_internal" +require "active_support/core_ext/string/inflections" +require "active_support/lazy_load_hooks" + +module ActionMailer + extend ::ActiveSupport::Autoload + + eager_autoload do + autoload :Collector + end + + autoload :Base + autoload :DeliveryMethods + autoload :InlinePreviewInterceptor + autoload :MailHelper + autoload :Parameterized + autoload :Preview + autoload :Previews, "action_mailer/preview" + autoload :TestCase + autoload :TestHelper + autoload :MessageDelivery + autoload :DeliveryJob + autoload :MailDeliveryJob + + def self.eager_load! + super + + require "mail" + Mail.eager_autoload! + end +end + +autoload :Mime, "action_dispatch/http/mime_type" + +ActiveSupport.on_load(:action_view) do + ActionView::Base.default_formats ||= Mime::SET.symbols + ActionView::Template::Types.delegate_to Mime +end diff --git a/actionmailer/lib/action_mailer/base.rb b/actionmailer/lib/action_mailer/base.rb new file mode 100644 index 0000000000..8ddc90b9df --- /dev/null +++ b/actionmailer/lib/action_mailer/base.rb @@ -0,0 +1,1021 @@ +# frozen_string_literal: true + +require "mail" +require "action_mailer/collector" +require "active_support/core_ext/string/inflections" +require "active_support/core_ext/hash/except" +require "active_support/core_ext/module/anonymous" + +require "action_mailer/log_subscriber" +require "action_mailer/rescuable" + +module ActionMailer + # Action Mailer allows you to send email from your application using a mailer model and views. + # + # = Mailer Models + # + # To use Action Mailer, you need to create a mailer model. + # + # $ rails generate mailer Notifier + # + # The generated model inherits from <tt>ApplicationMailer</tt> which in turn + # inherits from <tt>ActionMailer::Base</tt>. A mailer model defines methods + # used to generate an email message. In these methods, you can setup variables to be used in + # the mailer views, options on the mail itself such as the <tt>:from</tt> address, and attachments. + # + # class ApplicationMailer < ActionMailer::Base + # default from: 'from@example.com' + # layout 'mailer' + # end + # + # class NotifierMailer < ApplicationMailer + # default from: 'no-reply@example.com', + # return_path: 'system@example.com' + # + # def welcome(recipient) + # @account = recipient + # mail(to: recipient.email_address_with_name, + # bcc: ["bcc@example.com", "Order Watcher <watcher@example.com>"]) + # end + # end + # + # Within the mailer method, you have access to the following methods: + # + # * <tt>attachments[]=</tt> - Allows you to add attachments to your email in an intuitive + # manner; <tt>attachments['filename.png'] = File.read('path/to/filename.png')</tt> + # + # * <tt>attachments.inline[]=</tt> - Allows you to add an inline attachment to your email + # in the same manner as <tt>attachments[]=</tt> + # + # * <tt>headers[]=</tt> - Allows you to specify any header field in your email such + # as <tt>headers['X-No-Spam'] = 'True'</tt>. Note that declaring a header multiple times + # will add many fields of the same name. Read #headers doc for more information. + # + # * <tt>headers(hash)</tt> - Allows you to specify multiple headers in your email such + # as <tt>headers({'X-No-Spam' => 'True', 'In-Reply-To' => '1234@message.id'})</tt> + # + # * <tt>mail</tt> - Allows you to specify email to be sent. + # + # The hash passed to the mail method allows you to specify any header that a <tt>Mail::Message</tt> + # will accept (any valid email header including optional fields). + # + # The +mail+ method, if not passed a block, will inspect your views and send all the views with + # the same name as the method, so the above action would send the +welcome.text.erb+ view + # file as well as the +welcome.html.erb+ view file in a +multipart/alternative+ email. + # + # If you want to explicitly render only certain templates, pass a block: + # + # mail(to: user.email) do |format| + # format.text + # format.html + # end + # + # The block syntax is also useful in providing information specific to a part: + # + # mail(to: user.email) do |format| + # format.text(content_transfer_encoding: "base64") + # format.html + # end + # + # Or even to render a special view: + # + # mail(to: user.email) do |format| + # format.text + # format.html { render "some_other_template" } + # end + # + # = Mailer views + # + # Like Action Controller, each mailer class has a corresponding view directory in which each + # method of the class looks for a template with its name. + # + # To define a template to be used with a mailer, create an <tt>.erb</tt> file with the same + # name as the method in your mailer model. For example, in the mailer defined above, the template at + # <tt>app/views/notifier_mailer/welcome.text.erb</tt> would be used to generate the email. + # + # Variables defined in the methods of your mailer model are accessible as instance variables in their + # corresponding view. + # + # Emails by default are sent in plain text, so a sample view for our model example might look like this: + # + # Hi <%= @account.name %>, + # Thanks for joining our service! Please check back often. + # + # You can even use Action View helpers in these views. For example: + # + # You got a new note! + # <%= truncate(@note.body, length: 25) %> + # + # If you need to access the subject, from or the recipients in the view, you can do that through message object: + # + # You got a new note from <%= message.from %>! + # <%= truncate(@note.body, length: 25) %> + # + # + # = Generating URLs + # + # URLs can be generated in mailer views using <tt>url_for</tt> or named routes. Unlike controllers from + # Action Pack, the mailer instance doesn't have any context about the incoming request, so you'll need + # to provide all of the details needed to generate a URL. + # + # When using <tt>url_for</tt> you'll need to provide the <tt>:host</tt>, <tt>:controller</tt>, and <tt>:action</tt>: + # + # <%= url_for(host: "example.com", controller: "welcome", action: "greeting") %> + # + # When using named routes you only need to supply the <tt>:host</tt>: + # + # <%= users_url(host: "example.com") %> + # + # You should use the <tt>named_route_url</tt> style (which generates absolute URLs) and avoid using the + # <tt>named_route_path</tt> style (which generates relative URLs), since clients reading the mail will + # have no concept of a current URL from which to determine a relative path. + # + # It is also possible to set a default host that will be used in all mailers by setting the <tt>:host</tt> + # option as a configuration option in <tt>config/application.rb</tt>: + # + # config.action_mailer.default_url_options = { host: "example.com" } + # + # You can also define a <tt>default_url_options</tt> method on individual mailers to override these + # default settings per-mailer. + # + # By default when <tt>config.force_ssl</tt> is +true+, URLs generated for hosts will use the HTTPS protocol. + # + # = Sending mail + # + # Once a mailer action and template are defined, you can deliver your message or defer its creation and + # delivery for later: + # + # NotifierMailer.welcome(User.first).deliver_now # sends the email + # mail = NotifierMailer.welcome(User.first) # => an ActionMailer::MessageDelivery object + # mail.deliver_now # generates and sends the email now + # + # The <tt>ActionMailer::MessageDelivery</tt> class is a wrapper around a delegate that will call + # your method to generate the mail. If you want direct access to the delegator, or <tt>Mail::Message</tt>, + # you can call the <tt>message</tt> method on the <tt>ActionMailer::MessageDelivery</tt> object. + # + # NotifierMailer.welcome(User.first).message # => a Mail::Message object + # + # Action Mailer is nicely integrated with Active Job so you can generate and send emails in the background + # (example: outside of the request-response cycle, so the user doesn't have to wait on it): + # + # NotifierMailer.welcome(User.first).deliver_later # enqueue the email sending to Active Job + # + # Note that <tt>deliver_later</tt> will execute your method from the background job. + # + # You never instantiate your mailer class. Rather, you just call the method you defined on the class itself. + # All instance methods are expected to return a message object to be sent. + # + # = Multipart Emails + # + # Multipart messages can also be used implicitly because Action Mailer will automatically detect and use + # multipart templates, where each template is named after the name of the action, followed by the content + # type. Each such detected template will be added to the message, as a separate part. + # + # For example, if the following templates exist: + # * signup_notification.text.erb + # * signup_notification.html.erb + # * signup_notification.xml.builder + # * signup_notification.yml.erb + # + # Each would be rendered and added as a separate part to the message, with the corresponding content + # type. The content type for the entire message is automatically set to <tt>multipart/alternative</tt>, + # which indicates that the email contains multiple different representations of the same email + # body. The same instance variables defined in the action are passed to all email templates. + # + # Implicit template rendering is not performed if any attachments or parts have been added to the email. + # This means that you'll have to manually add each part to the email and set the content type of the email + # to <tt>multipart/alternative</tt>. + # + # = Attachments + # + # Sending attachment in emails is easy: + # + # class NotifierMailer < ApplicationMailer + # def welcome(recipient) + # attachments['free_book.pdf'] = File.read('path/to/file.pdf') + # mail(to: recipient, subject: "New account information") + # end + # end + # + # Which will (if it had both a <tt>welcome.text.erb</tt> and <tt>welcome.html.erb</tt> + # template in the view directory), send a complete <tt>multipart/mixed</tt> email with two parts, + # the first part being a <tt>multipart/alternative</tt> with the text and HTML email parts inside, + # and the second being a <tt>application/pdf</tt> with a Base64 encoded copy of the file.pdf book + # with the filename +free_book.pdf+. + # + # If you need to send attachments with no content, you need to create an empty view for it, + # or add an empty body parameter like this: + # + # class NotifierMailer < ApplicationMailer + # def welcome(recipient) + # attachments['free_book.pdf'] = File.read('path/to/file.pdf') + # mail(to: recipient, subject: "New account information", body: "") + # end + # end + # + # You can also send attachments with html template, in this case you need to add body, attachments, + # and custom content type like this: + # + # class NotifierMailer < ApplicationMailer + # def welcome(recipient) + # attachments["free_book.pdf"] = File.read("path/to/file.pdf") + # mail(to: recipient, + # subject: "New account information", + # content_type: "text/html", + # body: "<html><body>Hello there</body></html>") + # end + # end + # + # = Inline Attachments + # + # You can also specify that a file should be displayed inline with other HTML. This is useful + # if you want to display a corporate logo or a photo. + # + # class NotifierMailer < ApplicationMailer + # def welcome(recipient) + # attachments.inline['photo.png'] = File.read('path/to/photo.png') + # mail(to: recipient, subject: "Here is what we look like") + # end + # end + # + # And then to reference the image in the view, you create a <tt>welcome.html.erb</tt> file and + # make a call to +image_tag+ passing in the attachment you want to display and then call + # +url+ on the attachment to get the relative content id path for the image source: + # + # <h1>Please Don't Cringe</h1> + # + # <%= image_tag attachments['photo.png'].url -%> + # + # As we are using Action View's +image_tag+ method, you can pass in any other options you want: + # + # <h1>Please Don't Cringe</h1> + # + # <%= image_tag attachments['photo.png'].url, alt: 'Our Photo', class: 'photo' -%> + # + # = Observing and Intercepting Mails + # + # Action Mailer provides hooks into the Mail observer and interceptor methods. These allow you to + # register classes that are called during the mail delivery life cycle. + # + # An observer class must implement the <tt>:delivered_email(message)</tt> method which will be + # called once for every email sent after the email has been sent. + # + # An interceptor class must implement the <tt>:delivering_email(message)</tt> method which will be + # called before the email is sent, allowing you to make modifications to the email before it hits + # the delivery agents. Your class should make any needed modifications directly to the passed + # in <tt>Mail::Message</tt> instance. + # + # = Default Hash + # + # Action Mailer provides some intelligent defaults for your emails, these are usually specified in a + # default method inside the class definition: + # + # class NotifierMailer < ApplicationMailer + # default sender: 'system@example.com' + # end + # + # You can pass in any header value that a <tt>Mail::Message</tt> accepts. Out of the box, + # <tt>ActionMailer::Base</tt> sets the following: + # + # * <tt>mime_version: "1.0"</tt> + # * <tt>charset: "UTF-8"</tt> + # * <tt>content_type: "text/plain"</tt> + # * <tt>parts_order: [ "text/plain", "text/enriched", "text/html" ]</tt> + # + # <tt>parts_order</tt> and <tt>charset</tt> are not actually valid <tt>Mail::Message</tt> header fields, + # but Action Mailer translates them appropriately and sets the correct values. + # + # As you can pass in any header, you need to either quote the header as a string, or pass it in as + # an underscored symbol, so the following will work: + # + # class NotifierMailer < ApplicationMailer + # default 'Content-Transfer-Encoding' => '7bit', + # content_description: 'This is a description' + # end + # + # Finally, Action Mailer also supports passing <tt>Proc</tt> and <tt>Lambda</tt> objects into the default hash, + # so you can define methods that evaluate as the message is being generated: + # + # class NotifierMailer < ApplicationMailer + # default 'X-Special-Header' => Proc.new { my_method }, to: -> { @inviter.email_address } + # + # private + # def my_method + # 'some complex call' + # end + # end + # + # Note that the proc/lambda is evaluated right at the start of the mail message generation, so if you + # set something in the default hash using a proc, and then set the same thing inside of your + # mailer method, it will get overwritten by the mailer method. + # + # It is also possible to set these default options that will be used in all mailers through + # the <tt>default_options=</tt> configuration in <tt>config/application.rb</tt>: + # + # config.action_mailer.default_options = { from: "no-reply@example.org" } + # + # = Callbacks + # + # You can specify callbacks using <tt>before_action</tt> and <tt>after_action</tt> for configuring your messages. + # This may be useful, for example, when you want to add default inline attachments for all + # messages sent out by a certain mailer class: + # + # class NotifierMailer < ApplicationMailer + # before_action :add_inline_attachment! + # + # def welcome + # mail + # end + # + # private + # def add_inline_attachment! + # attachments.inline["footer.jpg"] = File.read('/path/to/filename.jpg') + # end + # end + # + # Callbacks in Action Mailer are implemented using + # <tt>AbstractController::Callbacks</tt>, so you can define and configure + # callbacks in the same manner that you would use callbacks in classes that + # inherit from <tt>ActionController::Base</tt>. + # + # Note that unless you have a specific reason to do so, you should prefer + # using <tt>before_action</tt> rather than <tt>after_action</tt> in your + # Action Mailer classes so that headers are parsed properly. + # + # = Previewing emails + # + # You can preview your email templates visually by adding a mailer preview file to the + # <tt>ActionMailer::Base.preview_path</tt>. Since most emails do something interesting + # with database data, you'll need to write some scenarios to load messages with fake data: + # + # class NotifierMailerPreview < ActionMailer::Preview + # def welcome + # NotifierMailer.welcome(User.first) + # end + # end + # + # Methods must return a <tt>Mail::Message</tt> object which can be generated by calling the mailer + # method without the additional <tt>deliver_now</tt> / <tt>deliver_later</tt>. The location of the + # mailer previews directory can be configured using the <tt>preview_path</tt> option which has a default + # of <tt>test/mailers/previews</tt>: + # + # config.action_mailer.preview_path = "#{Rails.root}/lib/mailer_previews" + # + # An overview of all previews is accessible at <tt>http://localhost:3000/rails/mailers</tt> + # on a running development server instance. + # + # Previews can also be intercepted in a similar manner as deliveries can be by registering + # a preview interceptor that has a <tt>previewing_email</tt> method: + # + # class CssInlineStyler + # def self.previewing_email(message) + # # inline CSS styles + # end + # end + # + # config.action_mailer.preview_interceptors :css_inline_styler + # + # Note that interceptors need to be registered both with <tt>register_interceptor</tt> + # and <tt>register_preview_interceptor</tt> if they should operate on both sending and + # previewing emails. + # + # = Configuration options + # + # These options are specified on the class level, like + # <tt>ActionMailer::Base.raise_delivery_errors = true</tt> + # + # * <tt>default_options</tt> - You can pass this in at a class level as well as within the class itself as + # per the above section. + # + # * <tt>logger</tt> - the logger is used for generating information on the mailing run if available. + # Can be set to +nil+ for no logging. Compatible with both Ruby's own +Logger+ and Log4r loggers. + # + # * <tt>smtp_settings</tt> - Allows detailed configuration for <tt>:smtp</tt> delivery method: + # * <tt>:address</tt> - Allows you to use a remote mail server. Just change it from its default + # "localhost" setting. + # * <tt>:port</tt> - On the off chance that your mail server doesn't run on port 25, you can change it. + # * <tt>:domain</tt> - If you need to specify a HELO domain, you can do it here. + # * <tt>:user_name</tt> - If your mail server requires authentication, set the username in this setting. + # * <tt>:password</tt> - If your mail server requires authentication, set the password in this setting. + # * <tt>:authentication</tt> - If your mail server requires authentication, you need to specify the + # authentication type here. + # This is a symbol and one of <tt>:plain</tt> (will send the password Base64 encoded), <tt>:login</tt> (will + # send the password Base64 encoded) or <tt>:cram_md5</tt> (combines a Challenge/Response mechanism to exchange + # information and a cryptographic Message Digest 5 algorithm to hash important information) + # * <tt>:enable_starttls_auto</tt> - Detects if STARTTLS is enabled in your SMTP server and starts + # to use it. Defaults to <tt>true</tt>. + # * <tt>:openssl_verify_mode</tt> - When using TLS, you can set how OpenSSL checks the certificate. This is + # really useful if you need to validate a self-signed and/or a wildcard certificate. You can use the name + # of an OpenSSL verify constant (<tt>'none'</tt> or <tt>'peer'</tt>) or directly the constant + # (<tt>OpenSSL::SSL::VERIFY_NONE</tt> or <tt>OpenSSL::SSL::VERIFY_PEER</tt>). + # <tt>:ssl/:tls</tt> Enables the SMTP connection to use SMTP/TLS (SMTPS: SMTP over direct TLS connection) + # + # * <tt>sendmail_settings</tt> - Allows you to override options for the <tt>:sendmail</tt> delivery method. + # * <tt>:location</tt> - The location of the sendmail executable. Defaults to <tt>/usr/sbin/sendmail</tt>. + # * <tt>:arguments</tt> - The command line arguments. Defaults to <tt>-i</tt> with <tt>-f sender@address</tt> + # added automatically before the message is sent. + # + # * <tt>file_settings</tt> - Allows you to override options for the <tt>:file</tt> delivery method. + # * <tt>:location</tt> - The directory into which emails will be written. Defaults to the application + # <tt>tmp/mails</tt>. + # + # * <tt>raise_delivery_errors</tt> - Whether or not errors should be raised if the email fails to be delivered. + # + # * <tt>delivery_method</tt> - Defines a delivery method. Possible values are <tt>:smtp</tt> (default), + # <tt>:sendmail</tt>, <tt>:test</tt>, and <tt>:file</tt>. Or you may provide a custom delivery method + # object e.g. +MyOwnDeliveryMethodClass+. See the Mail gem documentation on the interface you need to + # implement for a custom delivery agent. + # + # * <tt>perform_deliveries</tt> - Determines whether emails are actually sent from Action Mailer when you + # call <tt>.deliver</tt> on an email message or on an Action Mailer method. This is on by default but can + # be turned off to aid in functional testing. + # + # * <tt>deliveries</tt> - Keeps an array of all the emails sent out through the Action Mailer with + # <tt>delivery_method :test</tt>. Most useful for unit and functional testing. + # + # * <tt>deliver_later_queue_name</tt> - The name of the queue used with <tt>deliver_later</tt>. Defaults to +mailers+. + class Base < AbstractController::Base + include DeliveryMethods + include Rescuable + include Parameterized + include Previews + + abstract! + + include AbstractController::Rendering + + include AbstractController::Logger + include AbstractController::Helpers + include AbstractController::Translation + include AbstractController::AssetPaths + include AbstractController::Callbacks + include AbstractController::Caching + + include ActionView::Layouts + + PROTECTED_IVARS = AbstractController::Rendering::DEFAULT_PROTECTED_INSTANCE_VARIABLES + [:@_action_has_layout] + + def _protected_ivars # :nodoc: + PROTECTED_IVARS + end + + helper ActionMailer::MailHelper + + class_attribute :delivery_job, default: ::ActionMailer::MailDeliveryJob + class_attribute :default_params, default: { + mime_version: "1.0", + charset: "UTF-8", + content_type: "text/plain", + parts_order: [ "text/plain", "text/enriched", "text/html" ] + }.freeze + + class << self + # Register one or more Observers which will be notified when mail is delivered. + def register_observers(*observers) + observers.flatten.compact.each { |observer| register_observer(observer) } + end + + # Unregister one or more previously registered Observers. + def unregister_observers(*observers) + observers.flatten.compact.each { |observer| unregister_observer(observer) } + end + + # Register one or more Interceptors which will be called before mail is sent. + def register_interceptors(*interceptors) + interceptors.flatten.compact.each { |interceptor| register_interceptor(interceptor) } + end + + # Unregister one or more previously registered Interceptors. + def unregister_interceptors(*interceptors) + interceptors.flatten.compact.each { |interceptor| unregister_interceptor(interceptor) } + end + + # Register an Observer which will be notified when mail is delivered. + # Either a class, string or symbol can be passed in as the Observer. + # If a string or symbol is passed in it will be camelized and constantized. + def register_observer(observer) + Mail.register_observer(observer_class_for(observer)) + end + + # Unregister a previously registered Observer. + # Either a class, string or symbol can be passed in as the Observer. + # If a string or symbol is passed in it will be camelized and constantized. + def unregister_observer(observer) + Mail.unregister_observer(observer_class_for(observer)) + end + + # Register an Interceptor which will be called before mail is sent. + # Either a class, string or symbol can be passed in as the Interceptor. + # If a string or symbol is passed in it will be camelized and constantized. + def register_interceptor(interceptor) + Mail.register_interceptor(observer_class_for(interceptor)) + end + + # Unregister a previously registered Interceptor. + # Either a class, string or symbol can be passed in as the Interceptor. + # If a string or symbol is passed in it will be camelized and constantized. + def unregister_interceptor(interceptor) + Mail.unregister_interceptor(observer_class_for(interceptor)) + end + + def observer_class_for(value) # :nodoc: + case value + when String, Symbol + value.to_s.camelize.constantize + else + value + end + end + private :observer_class_for + + # Returns the name of the current mailer. This method is also being used as a path for a view lookup. + # If this is an anonymous mailer, this method will return +anonymous+ instead. + def mailer_name + @mailer_name ||= anonymous? ? "anonymous" : name.underscore + end + # Allows to set the name of current mailer. + attr_writer :mailer_name + alias :controller_path :mailer_name + + # Sets the defaults through app configuration: + # + # config.action_mailer.default(from: "no-reply@example.org") + # + # Aliased by ::default_options= + def default(value = nil) + self.default_params = default_params.merge(value).freeze if value + default_params + end + # Allows to set defaults through app configuration: + # + # config.action_mailer.default_options = { from: "no-reply@example.org" } + alias :default_options= :default + + # Receives a raw email, parses it into an email object, decodes it, + # instantiates a new mailer, and passes the email object to the mailer + # object's +receive+ method. + # + # If you want your mailer to be able to process incoming messages, you'll + # need to implement a +receive+ method that accepts the raw email string + # as a parameter: + # + # class MyMailer < ActionMailer::Base + # def receive(mail) + # # ... + # end + # end + def receive(raw_mail) + ActiveSupport::Notifications.instrument("receive.action_mailer") do |payload| + mail = Mail.new(raw_mail) + set_payload_for_mail(payload, mail) + new.receive(mail) + end + end + + # Wraps an email delivery inside of <tt>ActiveSupport::Notifications</tt> instrumentation. + # + # This method is actually called by the <tt>Mail::Message</tt> object itself + # through a callback when you call <tt>:deliver</tt> on the <tt>Mail::Message</tt>, + # calling +deliver_mail+ directly and passing a <tt>Mail::Message</tt> will do + # nothing except tell the logger you sent the email. + def deliver_mail(mail) #:nodoc: + ActiveSupport::Notifications.instrument("deliver.action_mailer") do |payload| + set_payload_for_mail(payload, mail) + yield # Let Mail do the delivery actions + end + end + + private + + def set_payload_for_mail(payload, mail) + payload[:mailer] = name + payload[:message_id] = mail.message_id + payload[:subject] = mail.subject + payload[:to] = mail.to + payload[:from] = mail.from + payload[:bcc] = mail.bcc if mail.bcc.present? + payload[:cc] = mail.cc if mail.cc.present? + payload[:date] = mail.date + payload[:mail] = mail.encoded + payload[:perform_deliveries] = mail.perform_deliveries + end + + def method_missing(method_name, *args) + if action_methods.include?(method_name.to_s) + MessageDelivery.new(self, method_name, *args) + else + super + end + end + + def respond_to_missing?(method, include_all = false) + action_methods.include?(method.to_s) || super + end + end + + attr_internal :message + + def initialize + super() + @_mail_was_called = false + @_message = Mail.new + end + + def process(method_name, *args) #:nodoc: + payload = { + mailer: self.class.name, + action: method_name, + args: args + } + + ActiveSupport::Notifications.instrument("process.action_mailer", payload) do + super + @_message = NullMail.new unless @_mail_was_called + end + end + + class NullMail #:nodoc: + def body; "" end + def header; {} end + + def respond_to?(string, include_all = false) + true + end + + def method_missing(*args) + nil + end + end + + # Returns the name of the mailer object. + def mailer_name + self.class.mailer_name + end + + # Allows you to pass random and unusual headers to the new <tt>Mail::Message</tt> + # object which will add them to itself. + # + # headers['X-Special-Domain-Specific-Header'] = "SecretValue" + # + # You can also pass a hash into headers of header field names and values, + # which will then be set on the <tt>Mail::Message</tt> object: + # + # headers 'X-Special-Domain-Specific-Header' => "SecretValue", + # 'In-Reply-To' => incoming.message_id + # + # The resulting <tt>Mail::Message</tt> will have the following in its header: + # + # X-Special-Domain-Specific-Header: SecretValue + # + # Note about replacing already defined headers: + # + # * +subject+ + # * +sender+ + # * +from+ + # * +to+ + # * +cc+ + # * +bcc+ + # * +reply-to+ + # * +orig-date+ + # * +message-id+ + # * +references+ + # + # Fields can only appear once in email headers while other fields such as + # <tt>X-Anything</tt> can appear multiple times. + # + # If you want to replace any header which already exists, first set it to + # +nil+ in order to reset the value otherwise another field will be added + # for the same header. + def headers(args = nil) + if args + @_message.headers(args) + else + @_message + end + end + + # Allows you to add attachments to an email, like so: + # + # mail.attachments['filename.jpg'] = File.read('/path/to/filename.jpg') + # + # If you do this, then Mail will take the file name and work out the mime type. + # It will also set the Content-Type, Content-Disposition, Content-Transfer-Encoding + # and encode the contents of the attachment in Base64. + # + # You can also specify overrides if you want by passing a hash instead of a string: + # + # mail.attachments['filename.jpg'] = {mime_type: 'application/gzip', + # content: File.read('/path/to/filename.jpg')} + # + # If you want to use encoding other than Base64 then you will need to pass encoding + # type along with the pre-encoded content as Mail doesn't know how to decode the + # data: + # + # file_content = SpecialEncode(File.read('/path/to/filename.jpg')) + # mail.attachments['filename.jpg'] = {mime_type: 'application/gzip', + # encoding: 'SpecialEncoding', + # content: file_content } + # + # You can also search for specific attachments: + # + # # By Filename + # mail.attachments['filename.jpg'] # => Mail::Part object or nil + # + # # or by index + # mail.attachments[0] # => Mail::Part (first attachment) + # + def attachments + if @_mail_was_called + LateAttachmentsProxy.new(@_message.attachments) + else + @_message.attachments + end + end + + class LateAttachmentsProxy < SimpleDelegator + def inline; _raise_error end + def []=(_name, _content); _raise_error end + + private + def _raise_error + raise RuntimeError, "Can't add attachments after `mail` was called.\n" \ + "Make sure to use `attachments[]=` before calling `mail`." + end + end + + # The main method that creates the message and renders the email templates. There are + # two ways to call this method, with a block, or without a block. + # + # It accepts a headers hash. This hash allows you to specify + # the most used headers in an email message, these are: + # + # * +:subject+ - The subject of the message, if this is omitted, Action Mailer will + # ask the Rails I18n class for a translated +:subject+ in the scope of + # <tt>[mailer_scope, action_name]</tt> or if this is missing, will translate the + # humanized version of the +action_name+ + # * +:to+ - Who the message is destined for, can be a string of addresses, or an array + # of addresses. + # * +:from+ - Who the message is from + # * +:cc+ - Who you would like to Carbon-Copy on this email, can be a string of addresses, + # or an array of addresses. + # * +:bcc+ - Who you would like to Blind-Carbon-Copy on this email, can be a string of + # addresses, or an array of addresses. + # * +:reply_to+ - Who to set the Reply-To header of the email to. + # * +:date+ - The date to say the email was sent on. + # + # You can set default values for any of the above headers (except +:date+) + # by using the ::default class method: + # + # class Notifier < ActionMailer::Base + # default from: 'no-reply@test.lindsaar.net', + # bcc: 'email_logger@test.lindsaar.net', + # reply_to: 'bounces@test.lindsaar.net' + # end + # + # If you need other headers not listed above, you can either pass them in + # as part of the headers hash or use the <tt>headers['name'] = value</tt> + # method. + # + # When a +:return_path+ is specified as header, that value will be used as + # the 'envelope from' address for the Mail message. Setting this is useful + # when you want delivery notifications sent to a different address than the + # one in +:from+. Mail will actually use the +:return_path+ in preference + # to the +:sender+ in preference to the +:from+ field for the 'envelope + # from' value. + # + # If you do not pass a block to the +mail+ method, it will find all + # templates in the view paths using by default the mailer name and the + # method name that it is being called from, it will then create parts for + # each of these templates intelligently, making educated guesses on correct + # content type and sequence, and return a fully prepared <tt>Mail::Message</tt> + # ready to call <tt>:deliver</tt> on to send. + # + # For example: + # + # class Notifier < ActionMailer::Base + # default from: 'no-reply@test.lindsaar.net' + # + # def welcome + # mail(to: 'mikel@test.lindsaar.net') + # end + # end + # + # Will look for all templates at "app/views/notifier" with name "welcome". + # If no welcome template exists, it will raise an ActionView::MissingTemplate error. + # + # However, those can be customized: + # + # mail(template_path: 'notifications', template_name: 'another') + # + # And now it will look for all templates at "app/views/notifications" with name "another". + # + # If you do pass a block, you can render specific templates of your choice: + # + # mail(to: 'mikel@test.lindsaar.net') do |format| + # format.text + # format.html + # end + # + # You can even render plain text directly without using a template: + # + # mail(to: 'mikel@test.lindsaar.net') do |format| + # format.text { render plain: "Hello Mikel!" } + # format.html { render html: "<h1>Hello Mikel!</h1>".html_safe } + # end + # + # Which will render a +multipart/alternative+ email with +text/plain+ and + # +text/html+ parts. + # + # The block syntax also allows you to customize the part headers if desired: + # + # mail(to: 'mikel@test.lindsaar.net') do |format| + # format.text(content_transfer_encoding: "base64") + # format.html + # end + # + def mail(headers = {}, &block) + return message if @_mail_was_called && headers.blank? && !block + + # At the beginning, do not consider class default for content_type + content_type = headers[:content_type] + + headers = apply_defaults(headers) + + # Apply charset at the beginning so all fields are properly quoted + message.charset = charset = headers[:charset] + + # Set configure delivery behavior + wrap_delivery_behavior!(headers[:delivery_method], headers[:delivery_method_options]) + + assign_headers_to_message(message, headers) + + # Render the templates and blocks + responses = collect_responses(headers, &block) + @_mail_was_called = true + + create_parts_from_responses(message, responses) + + # Setup content type, reapply charset and handle parts order + message.content_type = set_content_type(message, content_type, headers[:content_type]) + message.charset = charset + + if message.multipart? + message.body.set_sort_order(headers[:parts_order]) + message.body.sort_parts! + end + + message + end + + private + + # Used by #mail to set the content type of the message. + # + # It will use the given +user_content_type+, or multipart if the mail + # message has any attachments. If the attachments are inline, the content + # type will be "multipart/related", otherwise "multipart/mixed". + # + # If there is no content type passed in via headers, and there are no + # attachments, or the message is multipart, then the default content type is + # used. + def set_content_type(m, user_content_type, class_default) # :doc: + params = m.content_type_parameters || {} + case + when user_content_type.present? + user_content_type + when m.has_attachments? + if m.attachments.detect(&:inline?) + ["multipart", "related", params] + else + ["multipart", "mixed", params] + end + when m.multipart? + ["multipart", "alternative", params] + else + m.content_type || class_default + end + end + + # Translates the +subject+ using Rails I18n class under <tt>[mailer_scope, action_name]</tt> scope. + # If it does not find a translation for the +subject+ under the specified scope it will default to a + # humanized version of the <tt>action_name</tt>. + # If the subject has interpolations, you can pass them through the +interpolations+ parameter. + def default_i18n_subject(interpolations = {}) # :doc: + mailer_scope = self.class.mailer_name.tr("/", ".") + I18n.t(:subject, interpolations.merge(scope: [mailer_scope, action_name], default: action_name.humanize)) + end + + # Emails do not support relative path links. + def self.supports_path? # :doc: + false + end + + def apply_defaults(headers) + default_values = self.class.default.map do |key, value| + [ + key, + compute_default(value) + ] + end.to_h + + headers_with_defaults = headers.reverse_merge(default_values) + headers_with_defaults[:subject] ||= default_i18n_subject + headers_with_defaults + end + + def compute_default(value) + return value unless value.is_a?(Proc) + + if value.arity == 1 + instance_exec(self, &value) + else + instance_exec(&value) + end + end + + def assign_headers_to_message(message, headers) + assignable = headers.except(:parts_order, :content_type, :body, :template_name, + :template_path, :delivery_method, :delivery_method_options) + assignable.each { |k, v| message[k] = v } + end + + def collect_responses(headers) + if block_given? + collect_responses_from_block(headers, &Proc.new) + elsif headers[:body] + collect_responses_from_text(headers) + else + collect_responses_from_templates(headers) + end + end + + def collect_responses_from_block(headers) + templates_name = headers[:template_name] || action_name + collector = ActionMailer::Collector.new(lookup_context) { render(templates_name) } + yield(collector) + collector.responses + end + + def collect_responses_from_text(headers) + [{ + body: headers.delete(:body), + content_type: headers[:content_type] || "text/plain" + }] + end + + def collect_responses_from_templates(headers) + templates_path = headers[:template_path] || self.class.mailer_name + templates_name = headers[:template_name] || action_name + + each_template(Array(templates_path), templates_name).map do |template| + self.formats = template.formats + { + body: render(template: template), + content_type: template.type.to_s + } + end + end + + def each_template(paths, name, &block) + templates = lookup_context.find_all(name, paths) + if templates.empty? + raise ActionView::MissingTemplate.new(paths, name, paths, false, "mailer") + else + templates.uniq(&:formats).each(&block) + end + end + + def create_parts_from_responses(m, responses) + if responses.size == 1 && !m.has_attachments? + responses[0].each { |k, v| m[k] = v } + elsif responses.size > 1 && m.has_attachments? + container = Mail::Part.new + container.content_type = "multipart/alternative" + responses.each { |r| insert_part(container, r, m.charset) } + m.add_part(container) + else + responses.each { |r| insert_part(m, r, m.charset) } + end + end + + def insert_part(container, response, charset) + response[:charset] ||= charset + part = Mail::Part.new(response) + container.add_part(part) + end + + # This and #instrument_name is for caching instrument + def instrument_payload(key) + { + mailer: mailer_name, + key: key + } + end + + def instrument_name + "action_mailer" + end + + ActiveSupport.run_load_hooks(:action_mailer, self) + end +end diff --git a/actionmailer/lib/action_mailer/collector.rb b/actionmailer/lib/action_mailer/collector.rb new file mode 100644 index 0000000000..888410fa75 --- /dev/null +++ b/actionmailer/lib/action_mailer/collector.rb @@ -0,0 +1,32 @@ +# frozen_string_literal: true + +require "abstract_controller/collector" +require "active_support/core_ext/hash/reverse_merge" +require "active_support/core_ext/array/extract_options" + +module ActionMailer + class Collector + include AbstractController::Collector + attr_reader :responses + + def initialize(context, &block) + @context = context + @responses = [] + @default_render = block + end + + def any(*args, &block) + options = args.extract_options! + raise ArgumentError, "You have to supply at least one format" if args.empty? + args.each { |type| send(type, options.dup, &block) } + end + alias :all :any + + def custom(mime, options = {}) + options.reverse_merge!(content_type: mime.to_s) + @context.formats = [mime.to_sym] + options[:body] = block_given? ? yield : @default_render.call + @responses << options + end + end +end diff --git a/actionmailer/lib/action_mailer/delivery_job.rb b/actionmailer/lib/action_mailer/delivery_job.rb new file mode 100644 index 0000000000..f228006920 --- /dev/null +++ b/actionmailer/lib/action_mailer/delivery_job.rb @@ -0,0 +1,44 @@ +# frozen_string_literal: true + +require "active_job" + +module ActionMailer + # The <tt>ActionMailer::DeliveryJob</tt> class is used when you + # want to send emails outside of the request-response cycle. + # + # Exceptions are rescued and handled by the mailer class. + class DeliveryJob < ActiveJob::Base # :nodoc: + queue_as { ActionMailer::Base.deliver_later_queue_name } + + rescue_from StandardError, with: :handle_exception_with_mailer_class + + before_perform do + ActiveSupport::Deprecation.warn <<~MSG.squish + Sending mail with DeliveryJob and Parameterized::DeliveryJob + is deprecated and will be removed in Rails 6.1. + Please use MailDeliveryJob instead. + MSG + end + + def perform(mailer, mail_method, delivery_method, *args) #:nodoc: + mailer.constantize.public_send(mail_method, *args).send(delivery_method) + end + + private + # "Deserialize" the mailer class name by hand in case another argument + # (like a Global ID reference) raised DeserializationError. + def mailer_class + if mailer = Array(@serialized_arguments).first || Array(arguments).first + mailer.constantize + end + end + + def handle_exception_with_mailer_class(exception) + if klass = mailer_class + klass.handle_exception exception + else + raise exception + end + end + end +end diff --git a/actionmailer/lib/action_mailer/delivery_methods.rb b/actionmailer/lib/action_mailer/delivery_methods.rb new file mode 100644 index 0000000000..5cd62307e6 --- /dev/null +++ b/actionmailer/lib/action_mailer/delivery_methods.rb @@ -0,0 +1,82 @@ +# frozen_string_literal: true + +require "tmpdir" + +module ActionMailer + # This module handles everything related to mail delivery, from registering + # new delivery methods to configuring the mail object to be sent. + module DeliveryMethods + extend ActiveSupport::Concern + + included do + # Do not make this inheritable, because we always want it to propagate + cattr_accessor :raise_delivery_errors, default: true + cattr_accessor :perform_deliveries, default: true + cattr_accessor :deliver_later_queue_name, default: :mailers + + class_attribute :delivery_methods, default: {}.freeze + class_attribute :delivery_method, default: :smtp + + add_delivery_method :smtp, Mail::SMTP, + address: "localhost", + port: 25, + domain: "localhost.localdomain", + user_name: nil, + password: nil, + authentication: nil, + enable_starttls_auto: true + + add_delivery_method :file, Mail::FileDelivery, + location: defined?(Rails.root) ? "#{Rails.root}/tmp/mails" : "#{Dir.tmpdir}/mails" + + add_delivery_method :sendmail, Mail::Sendmail, + location: "/usr/sbin/sendmail", + arguments: "-i" + + add_delivery_method :test, Mail::TestMailer + end + + # Helpers for creating and wrapping delivery behavior, used by DeliveryMethods. + module ClassMethods + # Provides a list of emails that have been delivered by Mail::TestMailer + delegate :deliveries, :deliveries=, to: Mail::TestMailer + + # Adds a new delivery method through the given class using the given + # symbol as alias and the default options supplied. + # + # add_delivery_method :sendmail, Mail::Sendmail, + # location: '/usr/sbin/sendmail', + # arguments: '-i' + def add_delivery_method(symbol, klass, default_options = {}) + class_attribute(:"#{symbol}_settings") unless respond_to?(:"#{symbol}_settings") + send(:"#{symbol}_settings=", default_options) + self.delivery_methods = delivery_methods.merge(symbol.to_sym => klass).freeze + end + + def wrap_delivery_behavior(mail, method = nil, options = nil) # :nodoc: + method ||= delivery_method + mail.delivery_handler = self + + case method + when NilClass + raise "Delivery method cannot be nil" + when Symbol + if klass = delivery_methods[method] + mail.delivery_method(klass, (send(:"#{method}_settings") || {}).merge(options || {})) + else + raise "Invalid delivery method #{method.inspect}" + end + else + mail.delivery_method(method) + end + + mail.perform_deliveries = perform_deliveries + mail.raise_delivery_errors = raise_delivery_errors + end + end + + def wrap_delivery_behavior!(*args) # :nodoc: + self.class.wrap_delivery_behavior(message, *args) + end + end +end diff --git a/actionmailer/lib/action_mailer/gem_version.rb b/actionmailer/lib/action_mailer/gem_version.rb new file mode 100644 index 0000000000..72eb5d61e8 --- /dev/null +++ b/actionmailer/lib/action_mailer/gem_version.rb @@ -0,0 +1,17 @@ +# frozen_string_literal: true + +module ActionMailer + # Returns the version of the currently loaded Action Mailer as a <tt>Gem::Version</tt>. + def self.gem_version + Gem::Version.new VERSION::STRING + end + + module VERSION + MAJOR = 6 + MINOR = 0 + TINY = 0 + PRE = "alpha" + + STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".") + end +end diff --git a/actionmailer/lib/action_mailer/inline_preview_interceptor.rb b/actionmailer/lib/action_mailer/inline_preview_interceptor.rb new file mode 100644 index 0000000000..2b97ac5b94 --- /dev/null +++ b/actionmailer/lib/action_mailer/inline_preview_interceptor.rb @@ -0,0 +1,57 @@ +# frozen_string_literal: true + +require "base64" + +module ActionMailer + # Implements a mailer preview interceptor that converts image tag src attributes + # that use inline cid: style URLs to data: style URLs so that they are visible + # when previewing an HTML email in a web browser. + # + # This interceptor is enabled by default. To disable it, delete it from the + # <tt>ActionMailer::Base.preview_interceptors</tt> array: + # + # ActionMailer::Base.preview_interceptors.delete(ActionMailer::InlinePreviewInterceptor) + # + class InlinePreviewInterceptor + PATTERN = /src=(?:"cid:[^"]+"|'cid:[^']+')/i + + include Base64 + + def self.previewing_email(message) #:nodoc: + new(message).transform! + end + + def initialize(message) #:nodoc: + @message = message + end + + def transform! #:nodoc: + return message if html_part.blank? + + html_part.body = html_part.decoded.gsub(PATTERN) do |match| + if part = find_part(match[9..-2]) + %[src="#{data_url(part)}"] + else + match + end + end + + message + end + + private + attr_reader :message + + def html_part + @html_part ||= message.html_part + end + + def data_url(part) + "data:#{part.mime_type};base64,#{strict_encode64(part.body.raw_source)}" + end + + def find_part(cid) + message.all_parts.find { |p| p.attachment? && p.cid == cid } + end + end +end diff --git a/actionmailer/lib/action_mailer/log_subscriber.rb b/actionmailer/lib/action_mailer/log_subscriber.rb new file mode 100644 index 0000000000..25c99342c2 --- /dev/null +++ b/actionmailer/lib/action_mailer/log_subscriber.rb @@ -0,0 +1,46 @@ +# frozen_string_literal: true + +require "active_support/log_subscriber" + +module ActionMailer + # Implements the ActiveSupport::LogSubscriber for logging notifications when + # email is delivered or received. + class LogSubscriber < ActiveSupport::LogSubscriber + # An email was delivered. + def deliver(event) + info do + perform_deliveries = event.payload[:perform_deliveries] + recipients = Array(event.payload[:to]).join(", ") + if perform_deliveries + "Sent mail to #{recipients} (#{event.duration.round(1)}ms)" + else + "Skipped sending mail to #{recipients} as `perform_deliveries` is false" + end + end + + debug { event.payload[:mail] } + end + + # An email was received. + def receive(event) + info { "Received mail (#{event.duration.round(1)}ms)" } + debug { event.payload[:mail] } + end + + # An email was generated. + def process(event) + debug do + mailer = event.payload[:mailer] + action = event.payload[:action] + "#{mailer}##{action}: processed outbound mail in #{event.duration.round(1)}ms" + end + end + + # Use the logger configured for ActionMailer::Base. + def logger + ActionMailer::Base.logger + end + end +end + +ActionMailer::LogSubscriber.attach_to :action_mailer diff --git a/actionmailer/lib/action_mailer/mail_delivery_job.rb b/actionmailer/lib/action_mailer/mail_delivery_job.rb new file mode 100644 index 0000000000..93778edfce --- /dev/null +++ b/actionmailer/lib/action_mailer/mail_delivery_job.rb @@ -0,0 +1,38 @@ +# frozen_string_literal: true + +require "active_job" + +module ActionMailer + # The <tt>ActionMailer::NewDeliveryJob</tt> class is used when you + # want to send emails outside of the request-response cycle. It supports + # sending either parameterized or normal mail. + # + # Exceptions are rescued and handled by the mailer class. + class MailDeliveryJob < ActiveJob::Base # :nodoc: + queue_as { ActionMailer::Base.deliver_later_queue_name } + + rescue_from StandardError, with: :handle_exception_with_mailer_class + + def perform(mailer, mail_method, delivery_method, args:, params: nil) #:nodoc: + mailer_class = params ? mailer.constantize.with(params) : mailer.constantize + mailer_class.public_send(mail_method, *args).send(delivery_method) + end + + private + # "Deserialize" the mailer class name by hand in case another argument + # (like a Global ID reference) raised DeserializationError. + def mailer_class + if mailer = Array(@serialized_arguments).first || Array(arguments).first + mailer.constantize + end + end + + def handle_exception_with_mailer_class(exception) + if klass = mailer_class + klass.handle_exception exception + else + raise exception + end + end + end +end diff --git a/actionmailer/lib/action_mailer/mail_helper.rb b/actionmailer/lib/action_mailer/mail_helper.rb new file mode 100644 index 0000000000..e7bed41f8d --- /dev/null +++ b/actionmailer/lib/action_mailer/mail_helper.rb @@ -0,0 +1,72 @@ +# frozen_string_literal: true + +module ActionMailer + # Provides helper methods for ActionMailer::Base that can be used for easily + # formatting messages, accessing mailer or message instances, and the + # attachments list. + module MailHelper + # Take the text and format it, indented two spaces for each line, and + # wrapped at 72 columns: + # + # text = <<-TEXT + # This is + # the paragraph. + # + # * item1 * item2 + # TEXT + # + # block_format text + # # => " This is the paragraph.\n\n * item1\n * item2\n" + def block_format(text) + formatted = text.split(/\n\r?\n/).collect { |paragraph| + format_paragraph(paragraph) + }.join("\n\n") + + # Make list points stand on their own line + formatted.gsub!(/[ ]*([*]+) ([^*]*)/) { " #{$1} #{$2.strip}\n" } + formatted.gsub!(/[ ]*([#]+) ([^#]*)/) { " #{$1} #{$2.strip}\n" } + + formatted + end + + # Access the mailer instance. + def mailer + @_controller + end + + # Access the message instance. + def message + @_message + end + + # Access the message attachments list. + def attachments + mailer.attachments + end + + # Returns +text+ wrapped at +len+ columns and indented +indent+ spaces. + # By default column length +len+ equals 72 characters and indent + # +indent+ equal two spaces. + # + # my_text = 'Here is a sample text with more than 40 characters' + # + # format_paragraph(my_text, 25, 4) + # # => " Here is a sample text with\n more than 40 characters" + def format_paragraph(text, len = 72, indent = 2) + sentences = [[]] + + text.split.each do |word| + if sentences.first.present? && (sentences.last + [word]).join(" ").length > len + sentences << [word] + else + sentences.last << word + end + end + + indentation = " " * indent + sentences.map! { |sentence| + "#{indentation}#{sentence.join(' ')}" + }.join "\n" + end + end +end diff --git a/actionmailer/lib/action_mailer/message_delivery.rb b/actionmailer/lib/action_mailer/message_delivery.rb new file mode 100644 index 0000000000..1e5cab6d47 --- /dev/null +++ b/actionmailer/lib/action_mailer/message_delivery.rb @@ -0,0 +1,152 @@ +# frozen_string_literal: true + +require "delegate" + +module ActionMailer + # The <tt>ActionMailer::MessageDelivery</tt> class is used by + # ActionMailer::Base when creating a new mailer. + # <tt>MessageDelivery</tt> is a wrapper (+Delegator+ subclass) around a lazy + # created <tt>Mail::Message</tt>. You can get direct access to the + # <tt>Mail::Message</tt>, deliver the email or schedule the email to be sent + # through Active Job. + # + # Notifier.welcome(User.first) # an ActionMailer::MessageDelivery object + # Notifier.welcome(User.first).deliver_now # sends the email + # Notifier.welcome(User.first).deliver_later # enqueue email delivery as a job through Active Job + # Notifier.welcome(User.first).message # a Mail::Message object + class MessageDelivery < Delegator + def initialize(mailer_class, action, *args) #:nodoc: + @mailer_class, @action, @args = mailer_class, action, args + + # The mail is only processed if we try to call any methods on it. + # Typical usage will leave it unloaded and call deliver_later. + @processed_mailer = nil + @mail_message = nil + end + + # Method calls are delegated to the Mail::Message that's ready to deliver. + def __getobj__ #:nodoc: + @mail_message ||= processed_mailer.message + end + + # Unused except for delegator internals (dup, marshalling). + def __setobj__(mail_message) #:nodoc: + @mail_message = mail_message + end + + # Returns the resulting Mail::Message + def message + __getobj__ + end + + # Was the delegate loaded, causing the mailer action to be processed? + def processed? + @processed_mailer || @mail_message + end + + # Enqueues the email to be delivered through Active Job. When the + # job runs it will send the email using +deliver_now!+. That means + # that the message will be sent bypassing checking +perform_deliveries+ + # and +raise_delivery_errors+, so use with caution. + # + # Notifier.welcome(User.first).deliver_later! + # Notifier.welcome(User.first).deliver_later!(wait: 1.hour) + # Notifier.welcome(User.first).deliver_later!(wait_until: 10.hours.from_now) + # + # Options: + # + # * <tt>:wait</tt> - Enqueue the email to be delivered with a delay + # * <tt>:wait_until</tt> - Enqueue the email to be delivered at (after) a specific date / time + # * <tt>:queue</tt> - Enqueue the email on the specified queue + # + # By default, the email will be enqueued using <tt>ActionMailer::DeliveryJob</tt>. Each + # <tt>ActionMailer::Base</tt> class can specify the job to use by setting the class variable + # +delivery_job+. + # + # class AccountRegistrationMailer < ApplicationMailer + # self.delivery_job = RegistrationDeliveryJob + # end + def deliver_later!(options = {}) + enqueue_delivery :deliver_now!, options + end + + # Enqueues the email to be delivered through Active Job. When the + # job runs it will send the email using +deliver_now+. + # + # Notifier.welcome(User.first).deliver_later + # Notifier.welcome(User.first).deliver_later(wait: 1.hour) + # Notifier.welcome(User.first).deliver_later(wait_until: 10.hours.from_now) + # + # Options: + # + # * <tt>:wait</tt> - Enqueue the email to be delivered with a delay. + # * <tt>:wait_until</tt> - Enqueue the email to be delivered at (after) a specific date / time. + # * <tt>:queue</tt> - Enqueue the email on the specified queue. + # + # By default, the email will be enqueued using <tt>ActionMailer::DeliveryJob</tt>. Each + # <tt>ActionMailer::Base</tt> class can specify the job to use by setting the class variable + # +delivery_job+. + # + # class AccountRegistrationMailer < ApplicationMailer + # self.delivery_job = RegistrationDeliveryJob + # end + def deliver_later(options = {}) + enqueue_delivery :deliver_now, options + end + + # Delivers an email without checking +perform_deliveries+ and +raise_delivery_errors+, + # so use with caution. + # + # Notifier.welcome(User.first).deliver_now! + # + def deliver_now! + processed_mailer.handle_exceptions do + message.deliver! + end + end + + # Delivers an email: + # + # Notifier.welcome(User.first).deliver_now + # + def deliver_now + processed_mailer.handle_exceptions do + message.deliver + end + end + + private + # Returns the processed Mailer instance. We keep this instance + # on hand so we can delegate exception handling to it. + def processed_mailer + @processed_mailer ||= @mailer_class.new.tap do |mailer| + mailer.process @action, *@args + end + end + + def enqueue_delivery(delivery_method, options = {}) + if processed? + ::Kernel.raise "You've accessed the message before asking to " \ + "deliver it later, so you may have made local changes that would " \ + "be silently lost if we enqueued a job to deliver it. Why? Only " \ + "the mailer method *arguments* are passed with the delivery job! " \ + "Do not access the message in any way if you mean to deliver it " \ + "later. Workarounds: 1. don't touch the message before calling " \ + "#deliver_later, 2. only touch the message *within your mailer " \ + "method*, or 3. use a custom Active Job instead of #deliver_later." + else + job = @mailer_class.delivery_job + args = arguments_for(job, delivery_method) + job.set(options).perform_later(*args) + end + end + + def arguments_for(delivery_job, delivery_method) + if delivery_job <= MailDeliveryJob + [@mailer_class.name, @action.to_s, delivery_method.to_s, args: @args] + else + [@mailer_class.name, @action.to_s, delivery_method.to_s, *@args] + end + end + end +end diff --git a/actionmailer/lib/action_mailer/parameterized.rb b/actionmailer/lib/action_mailer/parameterized.rb new file mode 100644 index 0000000000..999435919e --- /dev/null +++ b/actionmailer/lib/action_mailer/parameterized.rb @@ -0,0 +1,163 @@ +# frozen_string_literal: true + +module ActionMailer + # Provides the option to parameterize mailers in order to share instance variable + # setup, processing, and common headers. + # + # Consider this example that does not use parameterization: + # + # class InvitationsMailer < ApplicationMailer + # def account_invitation(inviter, invitee) + # @account = inviter.account + # @inviter = inviter + # @invitee = invitee + # + # subject = "#{@inviter.name} invited you to their Basecamp (#{@account.name})" + # + # mail \ + # subject: subject, + # to: invitee.email_address, + # from: common_address(inviter), + # reply_to: inviter.email_address_with_name + # end + # + # def project_invitation(project, inviter, invitee) + # @account = inviter.account + # @project = project + # @inviter = inviter + # @invitee = invitee + # @summarizer = ProjectInvitationSummarizer.new(@project.bucket) + # + # subject = "#{@inviter.name.familiar} added you to a project in Basecamp (#{@account.name})" + # + # mail \ + # subject: subject, + # to: invitee.email_address, + # from: common_address(inviter), + # reply_to: inviter.email_address_with_name + # end + # + # def bulk_project_invitation(projects, inviter, invitee) + # @account = inviter.account + # @projects = projects.sort_by(&:name) + # @inviter = inviter + # @invitee = invitee + # + # subject = "#{@inviter.name.familiar} added you to some new stuff in Basecamp (#{@account.name})" + # + # mail \ + # subject: subject, + # to: invitee.email_address, + # from: common_address(inviter), + # reply_to: inviter.email_address_with_name + # end + # end + # + # InvitationsMailer.account_invitation(person_a, person_b).deliver_later + # + # Using parameterized mailers, this can be rewritten as: + # + # class InvitationsMailer < ApplicationMailer + # before_action { @inviter, @invitee = params[:inviter], params[:invitee] } + # before_action { @account = params[:inviter].account } + # + # default to: -> { @invitee.email_address }, + # from: -> { common_address(@inviter) }, + # reply_to: -> { @inviter.email_address_with_name } + # + # def account_invitation + # mail subject: "#{@inviter.name} invited you to their Basecamp (#{@account.name})" + # end + # + # def project_invitation + # @project = params[:project] + # @summarizer = ProjectInvitationSummarizer.new(@project.bucket) + # + # mail subject: "#{@inviter.name.familiar} added you to a project in Basecamp (#{@account.name})" + # end + # + # def bulk_project_invitation + # @projects = params[:projects].sort_by(&:name) + # + # mail subject: "#{@inviter.name.familiar} added you to some new stuff in Basecamp (#{@account.name})" + # end + # end + # + # InvitationsMailer.with(inviter: person_a, invitee: person_b).account_invitation.deliver_later + module Parameterized + extend ActiveSupport::Concern + + included do + attr_accessor :params + end + + module ClassMethods + # Provide the parameters to the mailer in order to use them in the instance methods and callbacks. + # + # InvitationsMailer.with(inviter: person_a, invitee: person_b).account_invitation.deliver_later + # + # See Parameterized documentation for full example. + def with(params) + ActionMailer::Parameterized::Mailer.new(self, params) + end + end + + class Mailer # :nodoc: + def initialize(mailer, params) + @mailer, @params = mailer, params + end + + private + def method_missing(method_name, *args) + if @mailer.action_methods.include?(method_name.to_s) + ActionMailer::Parameterized::MessageDelivery.new(@mailer, method_name, @params, *args) + else + super + end + end + + def respond_to_missing?(method, include_all = false) + @mailer.respond_to?(method, include_all) + end + end + + class DeliveryJob < ActionMailer::DeliveryJob # :nodoc: + def perform(mailer, mail_method, delivery_method, params, *args) + mailer.constantize.with(params).public_send(mail_method, *args).send(delivery_method) + end + end + + class MessageDelivery < ActionMailer::MessageDelivery # :nodoc: + def initialize(mailer_class, action, params, *args) + super(mailer_class, action, *args) + @params = params + end + + private + def processed_mailer + @processed_mailer ||= @mailer_class.new.tap do |mailer| + mailer.params = @params + mailer.process @action, *@args + end + end + + def enqueue_delivery(delivery_method, options = {}) + if processed? + super + else + job = @mailer_class.delivery_job + args = arguments_for(job, delivery_method) + job.set(options).perform_later(*args) + end + end + + def arguments_for(delivery_job, delivery_method) + if delivery_job <= MailDeliveryJob + [@mailer_class.name, @action.to_s, delivery_method.to_s, params: @params, args: @args] + else + [@mailer_class.name, @action.to_s, delivery_method.to_s, @params, *@args] + end + end + end + end +end diff --git a/actionmailer/lib/action_mailer/preview.rb b/actionmailer/lib/action_mailer/preview.rb new file mode 100644 index 0000000000..500b3bede0 --- /dev/null +++ b/actionmailer/lib/action_mailer/preview.rb @@ -0,0 +1,143 @@ +# frozen_string_literal: true + +require "active_support/descendants_tracker" + +module ActionMailer + module Previews #:nodoc: + extend ActiveSupport::Concern + + included do + # Set the location of mailer previews through app configuration: + # + # config.action_mailer.preview_path = "#{Rails.root}/lib/mailer_previews" + # + mattr_accessor :preview_path, instance_writer: false + + # Enable or disable mailer previews through app configuration: + # + # config.action_mailer.show_previews = true + # + # Defaults to +true+ for development environment + # + mattr_accessor :show_previews, instance_writer: false + + # :nodoc: + mattr_accessor :preview_interceptors, instance_writer: false, default: [ActionMailer::InlinePreviewInterceptor] + end + + module ClassMethods + # Register one or more Interceptors which will be called before mail is previewed. + def register_preview_interceptors(*interceptors) + interceptors.flatten.compact.each { |interceptor| register_preview_interceptor(interceptor) } + end + + # Unregister one or more previously registered Interceptors. + def unregister_preview_interceptors(*interceptors) + interceptors.flatten.compact.each { |interceptor| unregister_preview_interceptor(interceptor) } + end + + # Register an Interceptor which will be called before mail is previewed. + # Either a class or a string can be passed in as the Interceptor. If a + # string is passed in it will be constantized. + def register_preview_interceptor(interceptor) + preview_interceptor = interceptor_class_for(interceptor) + + unless preview_interceptors.include?(preview_interceptor) + preview_interceptors << preview_interceptor + end + end + + # Unregister a previously registered Interceptor. + # Either a class or a string can be passed in as the Interceptor. If a + # string is passed in it will be constantized. + def unregister_preview_interceptor(interceptor) + preview_interceptors.delete(interceptor_class_for(interceptor)) + end + + private + + def interceptor_class_for(interceptor) + case interceptor + when String, Symbol + interceptor.to_s.camelize.constantize + else + interceptor + end + end + end + end + + class Preview + extend ActiveSupport::DescendantsTracker + + attr_reader :params + + def initialize(params = {}) + @params = params + end + + class << self + # Returns all mailer preview classes. + def all + load_previews if descendants.empty? + descendants + end + + # Returns the mail object for the given email name. The registered preview + # interceptors will be informed so that they can transform the message + # as they would if the mail was actually being delivered. + def call(email, params = {}) + preview = new(params) + message = preview.public_send(email) + inform_preview_interceptors(message) + message + end + + # Returns all of the available email previews. + def emails + public_instance_methods(false).map(&:to_s).sort + end + + # Returns +true+ if the email exists. + def email_exists?(email) + emails.include?(email) + end + + # Returns +true+ if the preview exists. + def exists?(preview) + all.any? { |p| p.preview_name == preview } + end + + # Find a mailer preview by its underscored class name. + def find(preview) + all.find { |p| p.preview_name == preview } + end + + # Returns the underscored name of the mailer preview without the suffix. + def preview_name + name.sub(/Preview$/, "").underscore + end + + private + def load_previews + if preview_path + Dir["#{preview_path}/**/*_preview.rb"].sort.each { |file| require_dependency file } + end + end + + def preview_path + Base.preview_path + end + + def show_previews + Base.show_previews + end + + def inform_preview_interceptors(message) + Base.preview_interceptors.each do |interceptor| + interceptor.previewing_email(message) + end + end + end + end +end diff --git a/actionmailer/lib/action_mailer/railtie.rb b/actionmailer/lib/action_mailer/railtie.rb new file mode 100644 index 0000000000..bb6141b406 --- /dev/null +++ b/actionmailer/lib/action_mailer/railtie.rb @@ -0,0 +1,85 @@ +# frozen_string_literal: true + +require "active_job/railtie" +require "action_mailer" +require "rails" +require "abstract_controller/railties/routes_helpers" + +module ActionMailer + class Railtie < Rails::Railtie # :nodoc: + config.action_mailer = ActiveSupport::OrderedOptions.new + config.eager_load_namespaces << ActionMailer + + initializer "action_mailer.logger" do + ActiveSupport.on_load(:action_mailer) { self.logger ||= Rails.logger } + end + + initializer "action_mailer.set_configs" do |app| + paths = app.config.paths + options = app.config.action_mailer + + if app.config.force_ssl + options.default_url_options ||= {} + options.default_url_options[:protocol] ||= "https" + end + + options.assets_dir ||= paths["public"].first + options.javascripts_dir ||= paths["public/javascripts"].first + options.stylesheets_dir ||= paths["public/stylesheets"].first + options.show_previews = Rails.env.development? if options.show_previews.nil? + options.cache_store ||= Rails.cache + + if options.show_previews + options.preview_path ||= defined?(Rails.root) ? "#{Rails.root}/test/mailers/previews" : nil + end + + # make sure readers methods get compiled + options.asset_host ||= app.config.asset_host + options.relative_url_root ||= app.config.relative_url_root + + ActiveSupport.on_load(:action_mailer) do + include AbstractController::UrlFor + extend ::AbstractController::Railties::RoutesHelpers.with(app.routes, false) + include app.routes.mounted_helpers + + register_interceptors(options.delete(:interceptors)) + register_preview_interceptors(options.delete(:preview_interceptors)) + register_observers(options.delete(:observers)) + + options.each { |k, v| send("#{k}=", v) } + end + + ActiveSupport.on_load(:action_dispatch_integration_test) do + include ActionMailer::TestHelper + include ActionMailer::TestCase::ClearTestDeliveries + end + end + + initializer "action_mailer.compile_config_methods" do + ActiveSupport.on_load(:action_mailer) do + config.compile_methods! if config.respond_to?(:compile_methods!) + end + end + + initializer "action_mailer.eager_load_actions" do + ActiveSupport.on_load(:after_initialize) do + ActionMailer::Base.descendants.each(&:action_methods) if config.eager_load + end + end + + config.after_initialize do |app| + options = app.config.action_mailer + + if options.show_previews + app.routes.prepend do + get "/rails/mailers" => "rails/mailers#index", internal: true + get "/rails/mailers/*path" => "rails/mailers#preview", internal: true + end + + if options.preview_path + ActiveSupport::Dependencies.autoload_paths << options.preview_path + end + end + end + end +end diff --git a/actionmailer/lib/action_mailer/rescuable.rb b/actionmailer/lib/action_mailer/rescuable.rb new file mode 100644 index 0000000000..5b567eb500 --- /dev/null +++ b/actionmailer/lib/action_mailer/rescuable.rb @@ -0,0 +1,29 @@ +# frozen_string_literal: true + +module ActionMailer #:nodoc: + # Provides +rescue_from+ for mailers. Wraps mailer action processing, + # mail job processing, and mail delivery. + module Rescuable + extend ActiveSupport::Concern + include ActiveSupport::Rescuable + + class_methods do + def handle_exception(exception) #:nodoc: + rescue_with_handler(exception) || raise(exception) + end + end + + def handle_exceptions #:nodoc: + yield + rescue => exception + rescue_with_handler(exception) || raise + end + + private + def process(*) + handle_exceptions do + super + end + end + end +end diff --git a/actionmailer/lib/action_mailer/test_case.rb b/actionmailer/lib/action_mailer/test_case.rb new file mode 100644 index 0000000000..ee5a864847 --- /dev/null +++ b/actionmailer/lib/action_mailer/test_case.rb @@ -0,0 +1,123 @@ +# frozen_string_literal: true + +require "active_support/test_case" +require "rails-dom-testing" + +module ActionMailer + class NonInferrableMailerError < ::StandardError + def initialize(name) + super "Unable to determine the mailer to test from #{name}. " \ + "You'll need to specify it using tests YourMailer in your " \ + "test case definition" + end + end + + class TestCase < ActiveSupport::TestCase + module ClearTestDeliveries + extend ActiveSupport::Concern + + included do + setup :clear_test_deliveries + teardown :clear_test_deliveries + end + + private + + def clear_test_deliveries + if ActionMailer::Base.delivery_method == :test + ActionMailer::Base.deliveries.clear + end + end + end + + module Behavior + extend ActiveSupport::Concern + + include ActiveSupport::Testing::ConstantLookup + include TestHelper + include Rails::Dom::Testing::Assertions::SelectorAssertions + include Rails::Dom::Testing::Assertions::DomAssertions + + included do + class_attribute :_mailer_class + setup :initialize_test_deliveries + setup :set_expected_mail + teardown :restore_test_deliveries + ActiveSupport.run_load_hooks(:action_mailer_test_case, self) + end + + module ClassMethods + def tests(mailer) + case mailer + when String, Symbol + self._mailer_class = mailer.to_s.camelize.constantize + when Module + self._mailer_class = mailer + else + raise NonInferrableMailerError.new(mailer) + end + end + + def mailer_class + if mailer = _mailer_class + mailer + else + tests determine_default_mailer(name) + end + end + + def determine_default_mailer(name) + mailer = determine_constant_from_test_name(name) do |constant| + Class === constant && constant < ActionMailer::Base + end + raise NonInferrableMailerError.new(name) if mailer.nil? + mailer + end + end + + private + + def initialize_test_deliveries + set_delivery_method :test + @old_perform_deliveries = ActionMailer::Base.perform_deliveries + ActionMailer::Base.perform_deliveries = true + ActionMailer::Base.deliveries.clear + end + + def restore_test_deliveries + restore_delivery_method + ActionMailer::Base.perform_deliveries = @old_perform_deliveries + end + + def set_delivery_method(method) + @old_delivery_method = ActionMailer::Base.delivery_method + ActionMailer::Base.delivery_method = method + end + + def restore_delivery_method + ActionMailer::Base.deliveries.clear + ActionMailer::Base.delivery_method = @old_delivery_method + end + + def set_expected_mail + @expected = Mail.new + @expected.content_type ["text", "plain", { "charset" => charset }] + @expected.mime_version = "1.0" + end + + def charset + "UTF-8" + end + + def encode(subject) + Mail::Encodings.q_value_encode(subject, charset) + end + + def read_fixture(action) + IO.readlines(File.join(Rails.root, "test", "fixtures", self.class.mailer_class.name.underscore, action)) + end + end + + include Behavior + end +end diff --git a/actionmailer/lib/action_mailer/test_helper.rb b/actionmailer/lib/action_mailer/test_helper.rb new file mode 100644 index 0000000000..e222301dff --- /dev/null +++ b/actionmailer/lib/action_mailer/test_helper.rb @@ -0,0 +1,162 @@ +# frozen_string_literal: true + +require "active_job" + +module ActionMailer + # Provides helper methods for testing Action Mailer, including #assert_emails + # and #assert_no_emails. + module TestHelper + include ActiveJob::TestHelper + + # Asserts that the number of emails sent matches the given number. + # + # def test_emails + # assert_emails 0 + # ContactMailer.welcome.deliver_now + # assert_emails 1 + # ContactMailer.welcome.deliver_now + # assert_emails 2 + # end + # + # If a block is passed, that block should cause the specified number of + # emails to be sent. + # + # def test_emails_again + # assert_emails 1 do + # ContactMailer.welcome.deliver_now + # end + # + # assert_emails 2 do + # ContactMailer.welcome.deliver_now + # ContactMailer.welcome.deliver_later + # end + # end + def assert_emails(number, &block) + if block_given? + original_count = ActionMailer::Base.deliveries.size + perform_enqueued_jobs(only: ->(job) { delivery_job_filter(job) }, &block) + new_count = ActionMailer::Base.deliveries.size + assert_equal number, new_count - original_count, "#{number} emails expected, but #{new_count - original_count} were sent" + else + assert_equal number, ActionMailer::Base.deliveries.size + end + end + + # Asserts that no emails have been sent. + # + # def test_emails + # assert_no_emails + # ContactMailer.welcome.deliver_now + # assert_emails 1 + # end + # + # If a block is passed, that block should not cause any emails to be sent. + # + # def test_emails_again + # assert_no_emails do + # # No emails should be sent from this block + # end + # end + # + # Note: This assertion is simply a shortcut for: + # + # assert_emails 0, &block + def assert_no_emails(&block) + assert_emails 0, &block + end + + # Asserts that the number of emails enqueued for later delivery matches + # the given number. + # + # def test_emails + # assert_enqueued_emails 0 + # ContactMailer.welcome.deliver_later + # assert_enqueued_emails 1 + # ContactMailer.welcome.deliver_later + # assert_enqueued_emails 2 + # end + # + # If a block is passed, that block should cause the specified number of + # emails to be enqueued. + # + # def test_emails_again + # assert_enqueued_emails 1 do + # ContactMailer.welcome.deliver_later + # end + # + # assert_enqueued_emails 2 do + # ContactMailer.welcome.deliver_later + # ContactMailer.welcome.deliver_later + # end + # end + def assert_enqueued_emails(number, &block) + assert_enqueued_jobs(number, only: ->(job) { delivery_job_filter(job) }, &block) + end + + # Asserts that a specific email has been enqueued, optionally + # matching arguments. + # + # def test_email + # ContactMailer.welcome.deliver_later + # assert_enqueued_email_with ContactMailer, :welcome + # end + # + # def test_email_with_arguments + # ContactMailer.welcome("Hello", "Goodbye").deliver_later + # assert_enqueued_email_with ContactMailer, :welcome, args: ["Hello", "Goodbye"] + # end + # + # If a block is passed, that block should cause the specified email + # to be enqueued. + # + # def test_email_in_block + # assert_enqueued_email_with ContactMailer, :welcome do + # ContactMailer.welcome.deliver_later + # end + # end + # + # If +args+ is provided as a Hash, a parameterized email is matched. + # + # def test_parameterized_email + # assert_enqueued_email_with ContactMailer, :welcome, + # args: {email: 'user@example.com'} do + # ContactMailer.with(email: 'user@example.com').welcome.deliver_later + # end + # end + def assert_enqueued_email_with(mailer, method, args: nil, queue: "mailers", &block) + args = if args.is_a?(Hash) + [mailer.to_s, method.to_s, "deliver_now", params: args, args: []] + else + [mailer.to_s, method.to_s, "deliver_now", args: Array(args)] + end + assert_enqueued_with(job: mailer.delivery_job, args: args, queue: queue, &block) + end + + # Asserts that no emails are enqueued for later delivery. + # + # def test_no_emails + # assert_no_enqueued_emails + # ContactMailer.welcome.deliver_later + # assert_enqueued_emails 1 + # end + # + # If a block is provided, it should not cause any emails to be enqueued. + # + # def test_no_emails + # assert_no_enqueued_emails do + # # No emails should be enqueued from this block + # end + # end + def assert_no_enqueued_emails(&block) + assert_enqueued_emails 0, &block + end + + private + + def delivery_job_filter(job) + job_class = job.is_a?(Hash) ? job.fetch(:job) : job.class + + Base.descendants.map(&:delivery_job).include?(job_class) + end + end +end diff --git a/actionmailer/lib/action_mailer/version.rb b/actionmailer/lib/action_mailer/version.rb new file mode 100644 index 0000000000..4549d6eb57 --- /dev/null +++ b/actionmailer/lib/action_mailer/version.rb @@ -0,0 +1,11 @@ +# frozen_string_literal: true + +require_relative "gem_version" + +module ActionMailer + # Returns the version of the currently loaded Action Mailer as a + # <tt>Gem::Version</tt>. + def self.version + gem_version + end +end diff --git a/actionmailer/lib/rails/generators/mailer/USAGE b/actionmailer/lib/rails/generators/mailer/USAGE new file mode 100644 index 0000000000..2b0a078109 --- /dev/null +++ b/actionmailer/lib/rails/generators/mailer/USAGE @@ -0,0 +1,17 @@ +Description: +============ + Stubs out a new mailer and its views. Passes the mailer name, either + CamelCased or under_scored, and an optional list of emails as arguments. + + This generates a mailer class in app/mailers and invokes your template + engine and test framework generators. + +Example: +======== + rails generate mailer Notifications signup forgot_password invoice + + creates a Notifications mailer class, views, and test: + Mailer: app/mailers/notifications_mailer.rb + Views: app/views/notifications_mailer/signup.text.erb [...] + Test: test/mailers/notifications_mailer_test.rb + diff --git a/actionmailer/lib/rails/generators/mailer/mailer_generator.rb b/actionmailer/lib/rails/generators/mailer/mailer_generator.rb new file mode 100644 index 0000000000..c37a74c762 --- /dev/null +++ b/actionmailer/lib/rails/generators/mailer/mailer_generator.rb @@ -0,0 +1,38 @@ +# frozen_string_literal: true + +module Rails + module Generators + class MailerGenerator < NamedBase + source_root File.expand_path("templates", __dir__) + + argument :actions, type: :array, default: [], banner: "method method" + + check_class_collision suffix: "Mailer" + + def create_mailer_file + template "mailer.rb", File.join("app/mailers", class_path, "#{file_name}_mailer.rb") + + in_root do + if behavior == :invoke && !File.exist?(application_mailer_file_name) + template "application_mailer.rb", application_mailer_file_name + end + end + end + + hook_for :template_engine, :test_framework + + private + def file_name # :doc: + @_file_name ||= super.sub(/_mailer\z/i, "") + end + + def application_mailer_file_name + @_application_mailer_file_name ||= if mountable_engine? + "app/mailers/#{namespaced_path}/application_mailer.rb" + else + "app/mailers/application_mailer.rb" + end + end + end + end +end diff --git a/actionmailer/lib/rails/generators/mailer/templates/application_mailer.rb.tt b/actionmailer/lib/rails/generators/mailer/templates/application_mailer.rb.tt new file mode 100644 index 0000000000..00fb9bd48f --- /dev/null +++ b/actionmailer/lib/rails/generators/mailer/templates/application_mailer.rb.tt @@ -0,0 +1,6 @@ +<% module_namespacing do -%> +class ApplicationMailer < ActionMailer::Base + default from: 'from@example.com' + layout 'mailer' +end +<% end %> diff --git a/actionmailer/lib/rails/generators/mailer/templates/mailer.rb.tt b/actionmailer/lib/rails/generators/mailer/templates/mailer.rb.tt new file mode 100644 index 0000000000..348d314758 --- /dev/null +++ b/actionmailer/lib/rails/generators/mailer/templates/mailer.rb.tt @@ -0,0 +1,17 @@ +<% module_namespacing do -%> +class <%= class_name %>Mailer < ApplicationMailer +<% actions.each do |action| -%> + + # Subject can be set in your I18n file at config/locales/en.yml + # with the following lookup: + # + # en.<%= file_path.tr("/",".") %>_mailer.<%= action %>.subject + # + def <%= action %> + @greeting = "Hi" + + mail to: "to@example.org" + end +<% end -%> +end +<% end -%> |