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Merge pull request #3969 from scossar/email-layout
FEATURE (WIP): add max-width and center email notifications
This commit is contained in:
Régis Hanol
commit
9832bb4103
5 changed files with 185 additions and 71 deletions
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@ -5,6 +5,7 @@ require_dependency 'age_words'
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class UserNotifications < ActionMailer::Base
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helper :application
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default charset: 'UTF-8'
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layout 'user_notifications'
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include Email::BuildEmailHelper
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@ -290,6 +291,7 @@ class UserNotifications < ActionMailer::Base
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else
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html = UserNotificationRenderer.new(Rails.configuration.paths["app/views"]).render(
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template: 'email/notification',
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layout: 'layouts/user_notifications',
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format: :html,
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locals: { context_posts: context_posts,
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post: post,
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42
app/views/layouts/user_notifications.html.erb
Normal file
42
app/views/layouts/user_notifications.html.erb
Normal file
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@ -0,0 +1,42 @@
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<!--[if !mso]><!-->
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<!--<![endif]-->
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title></title>
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<!--[if (gte mso 9)|(IE)]>
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<style type="text/css">
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table {border-collapse: collapse;}
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</style>
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<![endif]-->
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</head>
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<body>
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<center class="wrapper">
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<div class="webkit">
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<!--[if (gte mso 9)|(IE)]>
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<table width="600" align="center">
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<tr>
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<td>
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<![endif]-->
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<table class="outer" align="center">
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<tr>
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<td class="container">
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<%= yield %>
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</td>
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</tr>
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</table>
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<!--[if (gte mso 9)|(IE)]>
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</td>
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</tr>
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</table>
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<![endif]-->
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</div>
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</center>
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</body>
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</html>
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@ -9,7 +9,7 @@ module Email
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def initialize(html, opts=nil)
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@html = html
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@opts = opts || {}
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@fragment = Nokogiri::HTML.fragment(@html)
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@doc = Nokogiri::HTML(@html)
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end
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def self.register_plugin_style(&block)
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@ -30,7 +30,7 @@ module Email
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uri = URI(Discourse.base_url)
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# images
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@fragment.css('img').each do |img|
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@doc.css('img').each do |img|
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next if img['class'] == 'site-logo'
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if img['class'] == "emoji" || img['src'] =~ /plugins\/emoji/
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@ -56,15 +56,16 @@ module Email
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end
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# add max-width to big images
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big_images = @fragment.css('img[width="auto"][height="auto"]') -
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@fragment.css('aside.onebox img') -
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@fragment.css('img.site-logo, img.emoji')
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big_images = @doc.css('img[width="auto"][height="auto"]') -
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@doc.css('aside.onebox img') -
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@doc.css('img.site-logo, img.emoji')
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big_images.each do |img|
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add_styles(img, 'max-width: 100%;') if img['style'] !~ /max-width/
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add_styles(img, 'width: 100%; height: auto; max-width: 600px;') if img['style'] !~ /max-width/
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add_attributes(img, width: '600')
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end
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# attachments
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@fragment.css('a.attachment').each do |a|
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@doc.css('a.attachment').each do |a|
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# ensure all urls are absolute
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if a['href'] =~ /^\/[^\/]/
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a['href'] = "#{Discourse.base_url}#{a['href']}"
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@ -90,6 +91,10 @@ module Email
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style('.rtl', 'direction: rtl;')
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style('td.body', 'padding-top:5px;', colspan: "2")
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style('.whisper td.body', 'font-style: italic; color: #9c9c9c;')
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style('.wrapper', 'width:100%;table-layout:fixed;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;')
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style('.webkit', 'max-width:600px;')
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style('.outer', 'Margin: 0 auto; width: 100%; max-width: 600px;')
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style('.container', 'padding: 10px;')
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correct_first_body_margin
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correct_footer_style
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reset_tables
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@ -117,12 +122,12 @@ module Email
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style('aside.clearfix', "clear: both")
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# Finally, convert all `aside` tags to `div`s
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@fragment.css('aside, article, header').each do |n|
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@doc.css('aside, article, header').each do |n|
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n.name = "div"
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end
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# iframes can't go in emails, so replace them with clickable links
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@fragment.css('iframe').each do |i|
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@doc.css('iframe').each do |i|
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begin
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src_uri = URI(i['src'])
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@ -137,6 +142,7 @@ module Email
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end
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def format_html
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style('body', 'Margin: 0;padding:0;min-width:100%;background-color:#ffffff;')
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style('h3', 'margin: 15px 0 20px 0;')
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style('hr', 'background-color: #ddd; height: 1px; border: 1px;')
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style('a', 'text-decoration: none; font-weight: bold; color: #006699;')
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@ -157,20 +163,21 @@ module Email
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# this method is reserved for styles specific to plugin
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def plugin_styles
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@@plugin_callbacks.each { |block| block.call(@fragment, @opts) }
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@@plugin_callbacks.each { |block| block.call(@doc, @opts) }
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end
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def to_html
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return "" unless has_body?
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strip_classes_and_ids
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replace_relative_urls
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@fragment.to_html.tap do |result|
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@doc.to_html.tap do |result|
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result.gsub!(/\[email-indent\]/, "<div style='margin-left: 15px'>")
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result.gsub!(/\[\/email-indent\]/, "</div>")
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end
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end
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def strip_avatars_and_emojis
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@fragment.search('img').each do |img|
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@doc.search('img').each do |img|
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if img['src'] =~ /_avatar/
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img.parent['style'] = "vertical-align: top;" if img.parent.name == 'td'
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img.remove
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@ -182,7 +189,7 @@ module Email
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end
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end
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@fragment.to_s
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@doc.to_s
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end
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private
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@ -192,7 +199,7 @@ module Email
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host = forum_uri.host
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scheme = forum_uri.scheme
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@fragment.css('[href]').each do |element|
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@doc.css('[href]').each do |element|
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href = element['href']
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if href =~ /^\/\/#{host}/
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element['href'] = "#{scheme}:#{href}"
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@ -201,14 +208,14 @@ module Email
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end
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def correct_first_body_margin
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@fragment.css('.body p').each do |element|
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@doc.css('.body p').each do |element|
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element['style'] = "margin-top:0; border: 0;"
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end
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end
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def correct_footer_style
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footernum = 0
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@fragment.css('.footer').each do |element|
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@doc.css('.footer').each do |element|
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element['style'] = "color:#666;"
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linknum = 0
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element.css('a').each do |inner|
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@ -225,7 +232,7 @@ module Email
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end
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def strip_classes_and_ids
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@fragment.css('*').each do |element|
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@doc.css('*').each do |element|
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element.delete('class')
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element.delete('id')
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end
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@ -235,12 +242,20 @@ module Email
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style('table', nil, cellspacing: '0', cellpadding: '0', border: '0')
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end
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def add_attributes(element, attribs)
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attribs.each do |k, v|
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element[k] = v
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end
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end
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def has_body?
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@doc.at_css('body')
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end
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def style(selector, style, attribs = {})
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@fragment.css(selector).each do |element|
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@doc.css(selector).each do |element|
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add_styles(element, style) if style
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attribs.each do |k,v|
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element[k] = v
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end
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add_attributes(element, attribs)
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end
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end
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end
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@ -3,17 +3,25 @@ require 'email'
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describe Email::Styles do
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def basic_fragment(html)
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def basic_doc(html)
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styler = Email::Styles.new(html)
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styler.format_basic
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Nokogiri::HTML.fragment(styler.to_html)
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Nokogiri::HTML(styler.to_html)
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end
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def html_fragment(html)
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def html_doc(html)
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styler = Email::Styles.new(html)
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styler.format_basic
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styler.format_html
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Nokogiri::HTML.fragment(styler.to_html)
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Nokogiri::HTML(styler.to_html)
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end
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def notification_doc(html)
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styler = Email::Styles.new(html)
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styler.format_basic
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styler.format_notification
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styler.format_html
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Nokogiri::HTML(styler.to_html)
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end
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context "basic formatter" do
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@ -24,26 +32,30 @@ describe Email::Styles do
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expect(style.to_html).to be_blank
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end
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# Pending due to email effort @coding-horror made in d2fb2bc4c
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skip "adds a max-width to images" do
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frag = basic_fragment("<img src='gigantic.jpg'>")
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expect(frag.at("img")["style"]).to match("max-width")
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it "adds a max-width to big images" do
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doc = basic_doc("<img src='gigantic.jpg' width='1230' height='720'>")
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expect(doc.at("img")["style"]).to match("max-width")
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end
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it "doesn't add a maz-width to small images" do
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doc = basic_doc("<img src='gigantic.jpg' width='120' height='80'>")
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expect(doc.at("img")["style"]).not_to match("max-width")
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end
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it "adds a width and height to images with an emoji path" do
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frag = basic_fragment("<img src='/images/emoji/fish.png' class='emoji'>")
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expect(frag.at("img")["width"]).to eq("20")
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expect(frag.at("img")["height"]).to eq("20")
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doc = basic_doc("<img src='/images/emoji/fish.png' class='emoji'>")
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expect(doc.at("img")["width"]).to eq("20")
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expect(doc.at("img")["height"]).to eq("20")
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end
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it "converts relative paths to absolute paths" do
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frag = basic_fragment("<img src='/some-image.png'>")
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expect(frag.at("img")["src"]).to eq("#{Discourse.base_url}/some-image.png")
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doc = basic_doc("<img src='/some-image.png'>")
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expect(doc.at("img")["src"]).to eq("#{Discourse.base_url}/some-image.png")
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end
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it "strips classes and ids" do
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frag = basic_fragment("<div class='foo' id='bar'><div class='foo' id='bar'></div></div>")
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expect(frag.to_html).to eq("<div><div></div></div>")
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doc = basic_doc("<div class='foo' id='bar'><div class='foo' id='bar'></div></div>")
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expect(doc.to_html).to match(/<div><div><\/div><\/div>/)
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end
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end
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@ -56,51 +68,75 @@ describe Email::Styles do
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end
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it "attaches a style to h3 tags" do
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frag = html_fragment("<h3>hello</h3>")
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expect(frag.at('h3')['style']).to be_present
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doc = html_doc("<h3>hello</h3>")
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expect(doc.at('h3')['style']).to be_present
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end
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it "attaches a style to hr tags" do
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frag = html_fragment("hello<hr>")
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expect(frag.at('hr')['style']).to be_present
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doc = html_doc("hello<hr>")
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expect(doc.at('hr')['style']).to be_present
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end
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it "attaches a style to a tags" do
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frag = html_fragment("<a href>wat</a>")
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expect(frag.at('a')['style']).to be_present
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doc = html_doc("<a href>wat</a>")
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expect(doc.at('a')['style']).to be_present
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end
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it "attaches a style to a tags" do
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frag = html_fragment("<a href>wat</a>")
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expect(frag.at('a')['style']).to be_present
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doc = html_doc("<a href>wat</a>")
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expect(doc.at('a')['style']).to be_present
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end
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it "attaches a style to ul and li tags" do
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frag = html_fragment("<ul><li>hello</li></ul>")
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expect(frag.at('ul')['style']).to be_present
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expect(frag.at('li')['style']).to be_present
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doc = html_doc("<ul><li>hello</li></ul>")
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expect(doc.at('ul')['style']).to be_present
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expect(doc.at('li')['style']).to be_present
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end
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it "converts iframes to links" do
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iframe_url = "http://www.youtube.com/embed/7twifrxOTQY?feature=oembed&wmode=opaque"
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frag = html_fragment("<iframe src=\"#{iframe_url}\"></iframe>")
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expect(frag.at('iframe')).to be_blank
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expect(frag.at('a')).to be_present
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expect(frag.at('a')['href']).to eq(iframe_url)
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doc = html_doc("<iframe src=\"#{iframe_url}\"></iframe>")
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expect(doc.at('iframe')).to be_blank
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expect(doc.at('a')).to be_present
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expect(doc.at('a')['href']).to eq(iframe_url)
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end
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it "won't allow non URLs in iframe src, strips them with no link" do
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iframe_url = "alert('xss hole')"
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frag = html_fragment("<iframe src=\"#{iframe_url}\"></iframe>")
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expect(frag.at('iframe')).to be_blank
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expect(frag.at('a')).to be_blank
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doc = html_doc("<iframe src=\"#{iframe_url}\"></iframe>")
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expect(doc.at('iframe')).to be_blank
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expect(doc.at('a')).to be_blank
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end
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end
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context "format notifications" do
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it "adds both styles and attributes" do
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doc = notification_doc("<table><tr><td class='body'>hello</td></tr></table>")
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expect(doc.at('td')['style']).to eq('padding-top:5px;')
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expect(doc.at('td')['colspan']).to eq('2')
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end
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it "adds attributes when no styles are present" do
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doc = notification_doc("<div class='user-avatar'><img src='/some-image.png'></div>")
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expect(doc.at('img')['width']).to eq('45')
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end
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it "adds correct styles to the wrapper" do
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doc = notification_doc('<center class="wrapper"></center>')
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expect(doc.at('center')['style']).to eq('width:100%;table-layout:fixed;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;')
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end
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it "doesn't override inline attributes" do
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doc = notification_doc('<table width="600" align="center"><tr><td>test</td></tr></table>')
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expect(doc.at('table')['align']).to eq('center')
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expect(doc.at('table')['width']).to eq('600')
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end
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end
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context "rewriting protocol relative URLs to the forum" do
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it "doesn't rewrite a url to another site" do
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frag = html_fragment('<a href="//youtube.com/discourse">hello</a>')
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expect(frag.at('a')['href']).to eq("//youtube.com/discourse")
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doc = html_doc('<a href="//youtube.com/discourse">hello</a>')
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expect(doc.at('a')['href']).to eq("//youtube.com/discourse")
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end
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context "without https" do
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@ -109,18 +145,18 @@ describe Email::Styles do
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end
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it "rewrites the href to have http" do
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frag = html_fragment('<a href="//test.localhost/discourse">hello</a>')
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expect(frag.at('a')['href']).to eq("http://test.localhost/discourse")
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doc = html_doc('<a href="//test.localhost/discourse">hello</a>')
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expect(doc.at('a')['href']).to eq("http://test.localhost/discourse")
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end
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it "rewrites the href for attachment files to have http" do
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frag = html_fragment('<a class="attachment" href="//try-discourse.global.ssl.fastly.net/uploads/default/368/40b610b0aa90cfcf.txt">attachment_file.txt</a>')
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expect(frag.at('a')['href']).to eq("http://try-discourse.global.ssl.fastly.net/uploads/default/368/40b610b0aa90cfcf.txt")
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doc = html_doc('<a class="attachment" href="//try-discourse.global.ssl.fastly.net/uploads/default/368/40b610b0aa90cfcf.txt">attachment_file.txt</a>')
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expect(doc.at('a')['href']).to eq("http://try-discourse.global.ssl.fastly.net/uploads/default/368/40b610b0aa90cfcf.txt")
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end
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it "rewrites the src to have http" do
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frag = html_fragment('<img src="//test.localhost/blah.jpg">')
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expect(frag.at('img')['src']).to eq("http://test.localhost/blah.jpg")
|
||||
doc = html_doc('<img src="//test.localhost/blah.jpg">')
|
||||
expect(doc.at('img')['src']).to eq("http://test.localhost/blah.jpg")
|
||||
end
|
||||
end
|
||||
|
||||
|
|
@ -130,18 +166,18 @@ describe Email::Styles do
|
|||
end
|
||||
|
||||
it "rewrites the forum URL to have https" do
|
||||
frag = html_fragment('<a href="//test.localhost/discourse">hello</a>')
|
||||
expect(frag.at('a')['href']).to eq("https://test.localhost/discourse")
|
||||
doc = html_doc('<a href="//test.localhost/discourse">hello</a>')
|
||||
expect(doc.at('a')['href']).to eq("https://test.localhost/discourse")
|
||||
end
|
||||
|
||||
it "rewrites the href for attachment files to have https" do
|
||||
frag = html_fragment('<a class="attachment" href="//try-discourse.global.ssl.fastly.net/uploads/default/368/40b610b0aa90cfcf.txt">attachment_file.txt</a>')
|
||||
expect(frag.at('a')['href']).to eq("https://try-discourse.global.ssl.fastly.net/uploads/default/368/40b610b0aa90cfcf.txt")
|
||||
doc = html_doc('<a class="attachment" href="//try-discourse.global.ssl.fastly.net/uploads/default/368/40b610b0aa90cfcf.txt">attachment_file.txt</a>')
|
||||
expect(doc.at('a')['href']).to eq("https://try-discourse.global.ssl.fastly.net/uploads/default/368/40b610b0aa90cfcf.txt")
|
||||
end
|
||||
|
||||
it "rewrites the src to have https" do
|
||||
frag = html_fragment('<img src="//test.localhost/blah.jpg">')
|
||||
expect(frag.at('img')['src']).to eq("https://test.localhost/blah.jpg")
|
||||
doc = html_doc('<img src="//test.localhost/blah.jpg">')
|
||||
expect(doc.at('img')['src']).to eq("https://test.localhost/blah.jpg")
|
||||
end
|
||||
end
|
||||
|
||||
|
|
@ -152,16 +188,15 @@ describe Email::Styles do
|
|||
emoji = "<img src='/images/emoji/emoji_one/crying_cat_face.png'>"
|
||||
style = Email::Styles.new(emoji)
|
||||
style.strip_avatars_and_emojis
|
||||
expect(style.to_html).to match_html(emoji)
|
||||
expect(style.to_html).to match_html("<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\"><html><body>#{emoji}</body></html>")
|
||||
end
|
||||
|
||||
it "works for lonesome emoji with title" do
|
||||
emoji = "<img title='cry_cry' src='/images/emoji/emoji_one/crying_cat_face.png'>"
|
||||
style = Email::Styles.new(emoji)
|
||||
style.strip_avatars_and_emojis
|
||||
expect(style.to_html).to match_html("cry_cry")
|
||||
expect(style.to_html).to match_html("<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\"><html><body>cry_cry</body></html>")
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
end
|
||||
|
|
|
|||
|
|
@ -35,6 +35,10 @@ describe UserNotifications do
|
|||
expect(subject.body).to be_present
|
||||
end
|
||||
|
||||
it "does not use the layout" do
|
||||
expect(subject.html_part.to_s.scan(/<meta name="viewport" content="width=device-width, initial-scale=1.0">/).count).to eq(0)
|
||||
end
|
||||
|
||||
end
|
||||
|
||||
describe ".forgot_password" do
|
||||
|
|
@ -48,6 +52,10 @@ describe UserNotifications do
|
|||
expect(subject.body).to be_present
|
||||
end
|
||||
|
||||
it "does not use the layout" do
|
||||
expect(subject.html_part.to_s.scan(/<meta name="viewport" content="width=device-width, initial-scale=1.0">/).count).to eq(0)
|
||||
end
|
||||
|
||||
end
|
||||
|
||||
describe '.digest' do
|
||||
|
|
@ -77,6 +85,10 @@ describe UserNotifications do
|
|||
expect(subject.text_part.body.to_s).to be_present
|
||||
end
|
||||
|
||||
it "uses the layout" do
|
||||
expect(subject.html_part.to_s.scan(/<meta name="viewport" content="width=device-width, initial-scale=1.0">/).count).to eq(1)
|
||||
end
|
||||
|
||||
it "includes email_prefix in email subject instead of site title" do
|
||||
SiteSetting.email_prefix = "Try Discourse"
|
||||
SiteSetting.title = "Discourse Meta"
|
||||
|
|
@ -104,6 +116,8 @@ describe UserNotifications do
|
|||
notification_type: notification.notification_type,
|
||||
notification_data_hash: notification.data_hash
|
||||
)
|
||||
# meta tag should be present from the layout
|
||||
expect(mail.html_part.to_s.scan(/<meta name="viewport" content="width=device-width, initial-scale=1.0">/).count).to eq(1)
|
||||
|
||||
# from should include full user name
|
||||
expect(mail[:from].display_names).to eql(['John Doe'])
|
||||
|
|
@ -156,6 +170,9 @@ describe UserNotifications do
|
|||
notification_data_hash: notification.data_hash
|
||||
)
|
||||
|
||||
# meta tag should be present from the layout
|
||||
expect(mail.html_part.to_s.scan(/<meta name="viewport" content="width=device-width, initial-scale=1.0">/).count).to eq(1)
|
||||
|
||||
# from should not include full user name if "show user full names" is disabled
|
||||
expect(mail[:from].display_names).to_not eql(['John Doe'])
|
||||
|
||||
|
|
@ -193,6 +210,9 @@ describe UserNotifications do
|
|||
notification_data_hash: notification.data_hash
|
||||
)
|
||||
|
||||
# meta tag should be present from the layout
|
||||
expect(mail.html_part.to_s.scan(/<meta name="viewport" content="width=device-width, initial-scale=1.0">/).count).to eq(1)
|
||||
|
||||
# from should include username if full user name is not provided
|
||||
expect(mail[:from].display_names).to eql(['john'])
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue