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.\" ========================================================================
.\"
.IX Title "HTML 3pm"
.TH HTML 3pm "2014-02-11" "perl v5.18.2" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
MIME::Lite::HTML \- Provide routine to transform a HTML page in a MIME\-Lite mail
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 5
\&  perl \-MMIME::Lite::HTML \-e \*(Aq
\&     new MIME::Lite::HTML
\&         From     => "MIME\-Lite\e@alianwebserver.com",
\&         To       => "alian\e@cpan.org",
\&         Url      => "http://localhost/server\-status";\*(Aq
.Ve
.SH "VERSION"
.IX Header "VERSION"
\&\f(CW$Revision:\fR 1.23 $
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This module is a Perl mail client interface for sending message that 
support \s-1HTML\s0 format and build them for you..
This module provide routine to transform a \s-1HTML\s0 page in MIME::Lite mail.
So you need this module to use MIME-Lite-HTML possibilities
.SS "What's happen ?"
.IX Subsection "What's happen ?"
The job done is:
.IP "\(bu" 4
Get the file (\s-1LWP\s0) if needed
.IP "\(bu" 4
Parse page to find include images (gif, jpg, flash)
.IP "\(bu" 4
Attach them to mail with adequat header if asked (default)
.IP "\(bu" 4
Include external \s-1CSS\s0,Javascript file
.IP "\(bu" 4
Replace relative url with absolute one
.IP "\(bu" 4
Build the final MIME-Lite object with each part found
.SS "Usage"
.IX Subsection "Usage"
Did you alread see link like \*(L"Send this page to a friend\*(R" ?. With this module,
you can do script that to this in 3 lines.
.PP
It can be used too in a \s-1HTML\s0 newsletter. You make a classic \s-1HTML\s0 page,
and give just url to MIME::Lite::HTML.
.SS "Construction"
.IX Subsection "Construction"
MIME-Lite-HTML use a MIME-Lite object, and \s-1RFC2557\s0 construction:
.PP
If images and text are present, construction use is:
.PP
.Vb 5
\&  \-\-> multipart/alternative
\&  \-\-\-\-\-\-> text/plain
\&  \-\-\-\-\-\-> multipart/related
\&  \-\-\-\-\-\-\-\-\-\-\-\-\-> text/html
\&  \-\-\-\-\-\-\-\-\-\-\-\-\-> each images
.Ve
.PP
If no images but text is present, this is that:
.PP
.Vb 3
\&  \-\-\-> multipart/alternative
\&  \-\-\-\-\-\-\-> text/plain if present
\&  \-\-\-\-\-\-\-> text/html
.Ve
.PP
If images but no text, this is:
.PP
.Vb 3
\&  \-\-\-> multipart/related
\&  \-\-\-\-\-\-\-> text/html
\&  \-\-\-\-\-\-\-> each images
.Ve
.PP
If no images and no text, this is:
.PP
.Vb 1
\&  \-\-\-> text/html
.Ve
.SS "Documentation"
.IX Subsection "Documentation"
Additionnal documentation can be found here:
.IP "\(bu" 4
MIME-lite module
.IP "\(bu" 4
\&\s-1RFC 822, RFC 1521, RFC 1522\s0 and specially \s-1RFC 2557 \s0(\s-1MIME\s0 Encapsulation
of Aggregate Documents, such as \s-1HTML\s0)
.SS "Clients tested"
.IX Subsection "Clients tested"
\&\s-1HTML\s0 in mail is not full supported so this module can't work with all email
clients. If some client recognize \s-1HTML,\s0 they didn't support images include in
\&\s-1HTML.\s0 So in fact, they recognize multipart/relative but not multipart/related.
.IP "Netscape Messager (Linux-Windows)" 4
.IX Item "Netscape Messager (Linux-Windows)"
100% ok
.IP "Outlook Express (Windows-Mac)" 4
.IX Item "Outlook Express (Windows-Mac)"
100% ok. Mac work only with Content-Location header. Thx to Steve Benbow for
give mr this feedback and for his test.
.IP "Eudora (Windows)" 4
.IX Item "Eudora (Windows)"
If this module just send \s-1HTML\s0 and text, (without images), 100% ok.
.Sp
With images, Eudora didn't recognize multipart/related part as describe in
\&\s-1RFC 2557\s0 even if he can read his own \s-1HTML\s0 mail. So if images are present in 
\&\s-1HTML\s0 part, text and \s-1HTML\s0 part will be displayed both, text part in first. 
Two additional headers will be displayed in \s-1HTML\s0 part too in this case. 
Version 1.0 of this module correct major problem of headers displayed 
with image include in \s-1HTML\s0 part.
.IP "KMail (Linux)" 4
.IX Item "KMail (Linux)"
If this module just send \s-1HTML\s0 and text, (without images), 100% ok.
.Sp
In other case, Kmail didn't support image include in \s-1HTML.\s0 So if you set in 
KMail \*(L"Prefer \s-1HTML\s0 to text\*(R", it display \s-1HTML\s0 with images broken. Otherwise, 
it display text part.
.IP "Pegasus (Windows)" 4
.IX Item "Pegasus (Windows)"
If this module just send \s-1HTML\s0 and text, (without images), 100% ok.
.Sp
Pegasus didn't support images in \s-1HTML.\s0 When it find a multipart/related 
message, it ignore it, and display text part.
.PP
If you find others mail client who support (or not support) MIME-Lite-HTML
module, give me some feedback ! If you want be sure that your mail can be 
read by maximum of people, (so not only \s-1OE\s0 and Netscape), don't include 
images in your mail, and use a text buffer too. If multipart/related mail 
is not recognize, multipart/alternative can be read by the most of mail client.
.SS "Install on WinX with ActiveState / \s-1PPM\s0"
.IX Subsection "Install on WinX with ActiveState / PPM"
Just do in \s-1DOS \s0\*(L"shell\*(R":
.PP
.Vb 4
\&  c:\e ppm
\&  > set repository alian http://www.alianwebserver.com/perl/CPAN
\&  > install MIME\-Lite\-HTML
\&  > quit
.Ve
.SS "How know when next release will be ?"
.IX Subsection "How know when next release will be ?"
Subscribe on http://www.alianwebserver.com/cgi\-bin/news_mlh.cgi
.SH "Public Interface"
.IX Header "Public Interface"
.IP "new(%hash)" 4
.IX Item "new(%hash)"
Create a new instance of MIME::Lite::HTML.
.Sp
The hash can have this key : [Url], [Proxy], [Debug], [IncludeType],
 [HashTemplate], [LoginDetails], [TextCharset], [HTMLCharset],
 [TextEncoding], [HTMLEncoding], [remove_jscript]
.RS 4
.IP "Url" 4
.IX Item "Url"
\&... is url to parse and send. If this param is found, call of parse routine
and send of mail is done. Else you must use parse routine of MIME::Lite::HTML
and send of MIME::Lite.
.IP "Proxy" 4
.IX Item "Proxy"
\&... is url of proxy to use.
.Sp
.Vb 1
\&  Eg: Proxy => \*(Aqhttp://192.168.100.166:8080\*(Aq
.Ve
.IP "remove_jscript" 4
.IX Item "remove_jscript"
if set, remove all script code from html source
.Sp
.Vb 1
\&  Eg: remove_jscript => 1
.Ve
.IP "Debug" 4
.IX Item "Debug"
\&... is trace to stdout during parsing.
.Sp
.Vb 1
\&  Eg: Debug => 1
.Ve
.IP "IncludeType" 4
.IX Item "IncludeType"
\&... is method to use when finding images:
.RS 4
.IP "location" 4
.IX Item "location"
Default method is embed them in mail whith 'Content\-Location' header.
.IP "cid" 4
.IX Item "cid"
You use a 'Content\-CID' header.
.IP "extern" 4
.IX Item "extern"
Images are not embed, relative url are just replace with absolute, 
so images are fetch when user read mail. (Server must be reachable !)
.RE
.RS 4
.RE
.IP "ExternImages" 4
.IX Item "ExternImages"
This is a listref of regular expressions.  If an image matches any of the
regular expressions, it will be rendered as an <img> link, without being
attached to the mail, regardless of the IncludeType setting above.
For example:
.Sp
.Vb 1
\&  ExternImages => [ \*(Aq.*cat\e.jpg.*\*(Aq, \*(Aqexternal/.*\*(Aq ]
.Ve
.Sp
\&...would mean that \*(L"images/cat.jpg\*(R" and \*(L"external/foo.jpg\*(R" would be
sent as external <img> links, but \*(L"images/dog.jpg\*(R" would be sent using
whatever the default IncludeType (above) is.
.ie n .IP "$hash{'HashTemplate'}" 4
.el .IP "\f(CW$hash\fR{'HashTemplate'}" 4
.IX Item "$hash{'HashTemplate'}"
\&... is a reference to a hash. If present, MIME::Lite::HTML 
will substitute <? \f(CW$name\fR ?> with \f(CW$hash\fR{'HashTemplate'}{'name'} when parse url 
to send. \f(CW$hash\fR{'HashTemplate'} can be used too for include data for subelement.
Eg:
.Sp
.Vb 1
\&  $hash{\*(AqHashTemplate\*(Aq}{\*(Aqhttp://www.al.com/images/sommaire.gif\*(Aq}=\e@data;
.Ve
.Sp
or
.Sp
.Vb 1
\&  $hash{\*(AqHashTemplate\*(Aq}{\*(Aqhttp://www.al.com/script.js\*(Aq}="alert("Hello world");;
.Ve
.Sp
When module find the image http://www.alianwebserver.com/images/sommaire.gif 
in buffer, it don't get image with \s-1LWP\s0 but use data found in 
\&\f(CW$hash\fR{'HashTemplate'}. (See eg/example2.pl)
.IP "LoginDetails" 4
.IX Item "LoginDetails"
\&... is the couple user:password for use with restricted url.
.Sp
.Vb 1
\&  Eg: LoginDetails => \*(Aqmy_user:my_password\*(Aq
.Ve
.IP "TextCharset" 4
.IX Item "TextCharset"
\&... is the character set to use for the text part.
.Sp
.Vb 1
\&  Eg: TextCharset => \*(Aqiso\-8859\-7\*(Aq
.Ve
.Sp
for Greek. If none specified, the default is used (iso\-8859\-1).
.IP "HTMLCharset" 4
.IX Item "HTMLCharset"
\&... is the character set to use for the html part.
.Sp
.Vb 1
\&  Eg:  HTMLCharset => \*(Aqiso\-8859\-7\*(Aq
.Ve
.Sp
for Greek. If none specified, the default is used (iso\-8859\-1).
Take care, as that option does \s-1NOT\s0 change the character
set of the \s-1HTML\s0 page, it only changes the character set of the mime part.
.IP "TextEncoding" 4
.IX Item "TextEncoding"
\&... is the Encoding to be used for the text part (if such a part 
exists). If none specified, the default is used (7bit).
.Sp
.Vb 1
\&  Eg: TextEncoding => \*(Aqbase64\*(Aq
.Ve
.IP "HTMLEncoding" 4
.IX Item "HTMLEncoding"
\&... is the Encoding to be used for the html part. If none specified, the 
default is used (quoted-printable).
.Sp
.Vb 1
\&  Eg: HTMLEncoding => \*(Aqbase64\*(Aq.
.Ve
.RE
.RS 4
.Sp
Others keys are use with MIME::Lite constructor.
.Sp
This MIME-Lite keys are: Bcc, Encrypted, Received, Sender, Cc, From,
References, Subject, Comments, Keywords, Reply-To To, Content\-*,
Message\-ID,Resent\-*, X\-*,Date, MIME-Version, Return-Path,
Organization
.RE
.IP "parse($html, [$url_txt], [$url_base])" 4
.IX Item "parse($html, [$url_txt], [$url_base])"
Subroutine used for created \s-1HTML\s0 mail with MIME-Lite
.Sp
Parameters:
.RS 4
.ie n .IP "$html" 4
.el .IP "\f(CW$html\fR" 4
.IX Item "$html"
Url of \s-1HTML\s0 file to send, can be a local file. If \f(CW$url\fR is not an
url (http or https or ftp or file or nntp), \f(CW$url\fR is used as a buffer.
Example :
.Sp
.Vb 3
\&  http://www.alianwebserver.com
\&  file://c|/tmp/index.html
\&  <img src=toto.gif>
.Ve
.ie n .IP "$url_txt" 4
.el .IP "\f(CW$url_txt\fR" 4
.IX Item "$url_txt"
Url of text part to send for person who doesn't support \s-1HTML\s0 mail.
As \f(CW$html\fR, \f(CW$url_txt\fR can be a simple buffer.
.ie n .IP "$url_base" 4
.el .IP "\f(CW$url_base\fR" 4
.IX Item "$url_base"
\&\f(CW$url_base\fR is used if \f(CW$html\fR is a buffer, for get element found in \s-1HTML\s0 buffer.
.RE
.RS 4
.Sp
Return the MIME::Lite part to send
.RE
.IP "\fIsize()\fR" 4
.IX Item "size()"
Display size of mail in characters (so octets) that will be send.
(So use it *after* parse method). Use this method for control
size of mail send, I personnaly hate receive 500k by mail.
I pay for a 33k modem :\-(
.SH "Private methods"
.IX Header "Private methods"
.IP "build_mime_object($html,[$txt],[@mail])" 4
.IX Item "build_mime_object($html,[$txt],[@mail])"
(private)
.Sp
Build the final MIME-Lite object to send with each part read before
.RS 4
.ie n .IP "$html" 4
.el .IP "\f(CW$html\fR" 4
.IX Item "$html"
Buffer of \s-1HTML\s0 part
.ie n .IP "$txt" 4
.el .IP "\f(CW$txt\fR" 4
.IX Item "$txt"
Buffer of text part
.ie n .IP "@mail" 4
.el .IP "\f(CW@mail\fR" 4
.IX Item "@mail"
List of images attached to \s-1HTML\s0 part. Each item is a MIME-Lite object.
.RE
.RS 4
.Sp
See \*(L"Construction\*(R" in \*(L"Description\*(R" for know how MIME-Lite object is build.
.RE
.IP "create_image_part($url)" 4
.IX Item "create_image_part($url)"
(private)
.Sp
Fetch if needed \f(CW$url\fR, and create a \s-1MIME\s0 part for it.
.IP "include_css($gabarit,$root)" 4
.IX Item "include_css($gabarit,$root)"
(private)
.Sp
Search in \s-1HTML\s0 buffer ($gabarit) to remplace call to extern \s-1CSS\s0 file
with his content. \f(CW$root\fR is original absolute url where css file will
be found.
.IP "include_javascript($gabarit,$root)" 4
.IX Item "include_javascript($gabarit,$root)"
(private)
.Sp
Search in \s-1HTML\s0 buffer ($gabarit) to remplace call to extern javascript file
with his content. \f(CW$root\fR is original absolute url where javascript file will
be found.
.IP "input_image($gabarit,$root)" 4
.IX Item "input_image($gabarit,$root)"
(private)
.Sp
Search in \s-1HTML\s0 buffer ($gabarit) to remplace input form image with his cid
.Sp
Return final buffer and list of MIME::Lite part
.IP "link_form($gabarit,$root)" 4
.IX Item "link_form($gabarit,$root)"
(private)
.Sp
Replace link to formulaire with absolute link
.IP "fill_template($masque,$vars)" 4
.IX Item "fill_template($masque,$vars)"
.RS 4
.PD 0
.ie n .IP "$masque" 4
.el .IP "\f(CW$masque\fR" 4
.IX Item "$masque"
.PD
Path of template
.ie n .IP "$vars" 4
.el .IP "\f(CW$vars\fR" 4
.IX Item "$vars"
hash ref with keys/val to substitue
.RE
.RS 4
.Sp
Give template with remplaced variables
Ex: if $$vars{age}=12, and \f(CW$masque\fR have
.Sp
.Vb 1
\&  J\*(Aqai <? $age ?> ans,
.Ve
.Sp
this function give:
.Sp
.Vb 1
\&  J\*(Aqai 12 ans,
.Ve
.RE
.SH "Error Handling"
.IX Header "Error Handling"
The set_err routine is used privately. You can ask for an array of all the 
errors which occured inside the parse routine by calling:
.PP
\&\f(CW@errors\fR = \f(CW$mailHTML\fR\->errstr;
.PP
If no errors where found, it'll return undef.
.SH "CGI Example"
.IX Header "CGI Example"
.Vb 8
\&  #!/usr/bin/perl \-w 
\&  # A cgi program that do "Mail this page to a friend";
\&  # Call this script like this :
\&  # script.cgi?email=myfriend@isp.com&url=http://www.go.com
\&  use strict;
\&  use CGI qw/:standard/;
\&  use CGI::Carp qw/fatalsToBrowser/;
\&  use MIME::Lite::HTML;
\&  
\&  my $mailHTML = new MIME::Lite::HTML
\&     From     => \*(AqMIME\-Lite@alianwebserver.com\*(Aq,
\&     To       => param(\*(Aqemail\*(Aq),
\&     Subject => \*(AqYour url: \*(Aq.param(\*(Aqurl\*(Aq);
\&  
\&  my $MIMEmail = $mailHTML\->parse(param(\*(Aqurl\*(Aq));
\&  $MIMEmail\->send; # or for win user : $mail\->send_by_smtp(\*(Aqsmtp.fai.com\*(Aq);
\&  print header,"Mail envoye (", param(\*(Aqurl\*(Aq), " to ", param(\*(Aqemail\*(Aq),")<br>\en";
.Ve
.SH "TERMS AND CONDITIONS"
.IX Header "TERMS AND CONDITIONS"
.Vb 1
\&  Copyright (c) 2000 by Alain BARBET alian (at) cpan.org
.Ve
.PP
All rights reserved.  This program is free software; you can
redistribute it and/or modify it under the same terms as Perl
itself.
.PP
This software comes with \fB\s-1NO WARRANTY\s0\fR of any kind.
See the \s-1COPYING\s0 file in the distribution for details.
.SH "AUTHOR"
.IX Header "AUTHOR"
Alain \s-1BARBET\s0 alian@cpan.org , see file Changes for helpers.