Provided by: libcourriel-perl_0.40-1_all 
NAME
Courriel::Builder - Build emails with sugar
VERSION
version 0.40
SYNOPSIS
use Courriel::Builder;
my $email = build_email(
subject('An email for you'),
from('joe@example.com'),
to( 'jane@example.com', 'alice@example.com' ),
header( 'X-Generator' => 'MyApp' ),
plain_body($plain_text),
html_body(
$html,
attach('path/to/image.jpg'),
attach('path/to/other-image.jpg'),
),
attach('path/to/spreadsheet.xls'),
attach( content => $file_content ),
);
DESCRIPTION
This module provides some sugar syntax for emails of all shapes sizes, from simple emails
with a plain text body to emails with both plain and html bodies, html with attached
images, etc.
API
This module exports all of the following functions by default. It uses Sub::Exporter under
the hood, which means you can easily import the functions with different names. See
Sub::Exporter for details.
build_email( ... )
This function returns a new Courriel object. It takes the results of all the other
functions you call as input.
It expects you to pass in a body of some sort, whether text, html, or both, and will throw
an error if you don't.
It will add Date and Message-ID headers to your email if you don't provide them, ensuring
that the email is RFC-compliant.
subject($subject)
This sets the subject of the email. It expects a single string. You can pass an empty
string, but not "undef".
from($from)
This sets the From header of the email. It expects a single string or Email::Address
object.
to($from)
This sets the To header of the email. It expects a list of string and/or Email::Address
objects.
cc($from)
This sets the Cc header of the email. It expects a list of string and/or Email::Address
objects.
header( $name => $value )
This sets a header's value. You can call it as many times as you want, and you can call it
more than once with the same header name to set multiple values for that header.
plain_body( ... )
This defines a plain text body for the email. You can call it with a single argument, a
scalar or reference to a scalar. This creates a text/plain part based on the content you
provide in that argument. By default, the charset for the body is UTF-8 and the encoding
is base64.
You can also call this function with a hash of options. It accepts the following options:
• content
The content of the body. This can be a string or scalar reference.
• charset
The charset for the body. This defaults to UTF-8.
• encoding
The encoding for the body. This defaults to base64. Other valid values are quoted-
printable, 7bit, and 8bit.
It is strongly recommended that you let Courriel handle the transfer encoding for you.
html_body( ... )
This accepts the same arguments as the "plain_body()" function.
You can also pass in the results of one or more calls to the "attach()" function. If you
pass in attachments, it creates a multipart/related email part, which lets you refer to
images by the Content-ID using the "cid:" URL scheme.
attach( ... )
This function creates an attachment for the email. In the simplest form, you can pass it a
single argument, which should be a path to a file on disk. This file will be attached to
the email.
You can also pass a hash of options. The valid keys are:
• file
The file to attach to the email. You can also pass the content explicitly.
• content
The content of the attachment. This can be a string or scalar reference.
• filename
You can set the filename that will be used in the attachment's Content-Disposition
header. If you pass a "file" parameter, that will be used when this isn't provided. If
you pass as "content" parameter, then there will be no filename set for the attachment
unless you pass a "filename" parameter as well.
• mime_type
You can explicitly set the mime type for the attachment. If you don't, this function
will use File::LibMagic to try to figure out the mime type for the attachment.
• content_id
This will set the Content-ID header for the attachment. If you're creating a HTML body
with "cid:" scheme URLs, you'll need to set this for each attachment that the HTML
body refers to.
The id will be wrapped in angle brackets ("<id-goes-here>") when set as a header.
COOKBOOK
Some examples of how to build different types of emails.
Simple Email With Plain Text Body
my $email = build_email(
subject('An email for you'),
from('joe@example.com'),
to( 'jane@example.com', 'alice@example.com' ),
plain_body($plain_text),
);
This creates an email with a single text/plain part.
Simple Email With HTML Body
my $email = build_email(
subject('An email for you'),
from('joe@example.com'),
to( 'jane@example.com', 'alice@example.com' ),
html_body($html_text),
);
This creates an email with a single text/html part.
Email With Both Plain and HTML Bodies
my $email = build_email(
subject('An email for you'),
from('joe@example.com'),
to( 'jane@example.com', 'alice@example.com' ),
plain_body($plain_text),
html_body($html_text),
);
This creates an email with this structure:
multipart/alternative
|
|-- text/plain (disposition = inline)
|-- text/html (disposition = inline)
Email With Both Plain and HTML Bodies and Inline Images
my $email = build_email(
subject('An email for you'),
from('joe@example.com'),
to( 'jane@example.com', 'alice@example.com' ),
plain_body($plain_text),
html_body(
$html_text,
attach(
file => 'path/to/image1.jpg',
content_id => 'image1',
),
attach(
file => 'path/to/image2.jpg',
content_id => 'image2',
),
),
);
This creates an email with this structure:
multipart/alternative
|
|-- text/plain (disposition = inline)
|-- multipart/related
|
|-- text/html (disposition = inline)
|-- image/jpeg (disposition = attachment, Content-ID = image1)
|-- image/jpeg (disposition = attachment, Content-ID = image2)
Email With Both Plain and HTML Bodies and Attachments
my $email = build_email(
subject('An email for you'),
from('joe@example.com'),
to( 'jane@example.com', 'alice@example.com' ),
plain_body($plain_text),
html_body(
$html_text,
),
attach('path/to/spreadsheet.xls'),
attach( content => \$png_image_content ),
);
This creates an email with this structure:
multipart/mixed
|
|-- multipart/alternative
| |
| |-- text/plain (disposition = inline)
| |-- text/html (disposition = inline)
|
|-- application/vnd.ms-excel (disposition = attachment)
|-- image/png (disposition = attachment)
AUTHOR
Dave Rolsky <autarch@urth.org>
COPYRIGHT AND LICENSE
This software is Copyright (c) 2016 by Dave Rolsky.
This is free software, licensed under:
The Artistic License 2.0 (GPL Compatible)