Fixed issue #385 - Invalid (html) content in notification templates breaks application.
This commit is contained in:
Thorsten Eckel
parent
f4f1ca2b43
commit
e0792c80dd
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@ -221,7 +221,7 @@ returns
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def self.template(data)
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if data[:templateInline]
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return NotificationFactory::Template.new(data[:objects], data[:locale], data[:templateInline], false).render
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return NotificationFactory::Renderer.new(data[:objects], data[:locale], data[:templateInline], false).render
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end
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template = NotificationFactory.template_read(
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@ -231,8 +231,8 @@ returns
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type: 'mailer',
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)
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message_subject = NotificationFactory::Template.new(data[:objects], data[:locale], template[:subject], false).render
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message_body = NotificationFactory::Template.new(data[:objects], data[:locale], template[:body]).render
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message_subject = NotificationFactory::Renderer.new(data[:objects], data[:locale], template[:subject], false).render
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message_body = NotificationFactory::Renderer.new(data[:objects], data[:locale], template[:body]).render
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if !data[:raw]
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application_template = NotificationFactory.application_template_read(
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@ -241,7 +241,7 @@ returns
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)
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data[:objects][:message] = message_body
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data[:objects][:standalone] = data[:standalone]
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message_body = NotificationFactory::Template.new(data[:objects], data[:locale], application_template).render
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message_body = NotificationFactory::Renderer.new(data[:objects], data[:locale], application_template).render
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end
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{
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subject: message_subject,
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124
lib/notification_factory/renderer.rb
Normal file
124
lib/notification_factory/renderer.rb
Normal file
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@ -0,0 +1,124 @@
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class NotificationFactory::Renderer
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=begin
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examples how to use
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message_subject = NotificationFactory::Renderer.new(
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{
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ticket: Ticket.first,
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},
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'de-de',
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'some template <b><%= d "ticket.title", false %></b> <%= c "fqdn", false %>',
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false
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).render
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message_body = NotificationFactory::Renderer.new(
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{
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ticket: Ticket.first,
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},
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'de-de',
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'some template <b><%= d "ticket.title", true %></b> <%= c "fqdn", true %>',
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).render
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=end
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def initialize(objects, locale, template, escape = true)
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@objects = objects
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@locale = locale || 'en-us'
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@template = NotificationFactory::Template.new(template)
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@escape = escape
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end
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def render
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ERB.new(@template.to_s).result(binding)
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end
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# d - data of object
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# d('user.firstname', htmlEscape)
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def d(key, escape = nil)
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# do validaton, ignore some methodes
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if key =~ /(`|\.(|\s*)(save|destroy|delete|remove|drop|update\(|update_att|create\(|new|all|where|find))/i
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return "#{key} (not allowed)"
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end
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value = nil
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object_methods = key.split('.')
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object_name = object_methods.shift.to_sym
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object_refs = @objects[object_name]
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object_methods_s = ''
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object_methods.each { |method_raw|
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method = method_raw.strip
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if object_methods_s != ''
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object_methods_s += '.'
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end
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object_methods_s += method
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# if method exists
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if !object_refs.respond_to?( method.to_sym )
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value = "\#{#{object_name}.#{object_methods_s} / no such method}"
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break
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end
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object_refs = object_refs.send( method.to_sym )
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}
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placeholder = if !value
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object_refs
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else
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value
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end
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escaping(placeholder, escape)
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end
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# c - config
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# c('fqdn', htmlEscape)
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def c(key, escape = nil)
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config = Setting.get(key)
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escaping(config, escape)
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end
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# t - translation
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# t('yes', htmlEscape)
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def t(key, escape = nil)
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translation = Translation.translate(@locale, key)
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escaping(translation, escape)
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end
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# a_html - article body in html
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# a_html(article)
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def a_html(article)
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content_type = d "#{article}.content_type", false
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if content_type =~ /html/
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return d "#{article}.body", false
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end
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d("#{article}.body", false).text2html
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end
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# a_text - article body in text
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# a_text(article)
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def a_text(article)
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content_type = d "#{article}.content_type", false
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body = d "#{article}.body", false
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if content_type =~ /html/
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body = body.html2text
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end
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(body.strip + "\n").gsub(/^(.*?)$/, '> \\1')
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end
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# h - htmlEscape
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# h('fqdn', htmlEscape)
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def h(key)
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return key if !key
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CGI.escapeHTML(key.to_s)
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end
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private
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def escaping(key, escape)
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return key if escape == false
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return key if escape.nil? && !@escape
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h key
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end
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end
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@ -23,7 +23,7 @@ returns
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def self.template(data)
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if data[:templateInline]
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return NotificationFactory::Template.new(data[:objects], data[:locale], data[:templateInline]).render
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return NotificationFactory::Renderer.new(data[:objects], data[:locale], data[:templateInline]).render
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end
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template = NotificationFactory.template_read(
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@ -33,8 +33,8 @@ returns
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type: 'slack',
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)
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message_subject = NotificationFactory::Template.new(data[:objects], data[:locale], template[:subject]).render
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message_body = NotificationFactory::Template.new(data[:objects], data[:locale], template[:body]).render
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message_subject = NotificationFactory::Renderer.new(data[:objects], data[:locale], template[:subject]).render
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message_body = NotificationFactory::Renderer.new(data[:objects], data[:locale], template[:body]).render
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if !data[:raw]
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application_template = NotificationFactory.application_template_read(
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@ -43,7 +43,7 @@ returns
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)
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data[:objects][:message] = message_body
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data[:objects][:standalone] = data[:standalone]
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message_body = NotificationFactory::Template.new(data[:objects], data[:locale], application_template).render
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message_body = NotificationFactory::Renderer.new(data[:objects], data[:locale], application_template).render
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end
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{
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subject: message_subject.strip!,
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@ -4,113 +4,26 @@ class NotificationFactory::Template
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examples how to use
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message_subject = NotificationFactory::Template.new(
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{
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ticket: Ticket.first,
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},
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'de-de',
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cleaned_template = NotificationFactory::Template.new(
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'some template <b><%= d "ticket.title", false %></b> <%= c "fqdn", false %>',
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false
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).render
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message_body = NotificationFactory::Template.new(
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{
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ticket: Ticket.first,
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},
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'de-de',
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'some template <b><%= d "ticket.title", true %></b> <%= c "fqdn", true %>',
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).render
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).to_s
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=end
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def initialize(objects, locale, template, escape = true)
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@objects = objects
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@locale = locale || 'en-us'
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def initialize(template)
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@template = template
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@escape = escape
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end
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def render
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ERB.new(@template).result(binding)
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def to_s
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strip_html
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@template
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end
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# d - data of object
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# d('user.firstname', htmlEscape)
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def d(key, escape = nil)
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# do validaton, ignore some methodes
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if key =~ /(`|\.(|\s*)(save|destroy|delete|remove|drop|update\(|update_att|create\(|new|all|where|find))/i
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return "#{key} (not allowed)"
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end
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value = nil
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object_methods = key.split('.')
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object_name = object_methods.shift.to_sym
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object_refs = @objects[object_name]
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object_methods_s = ''
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object_methods.each { |method|
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if object_methods_s != ''
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object_methods_s += '.'
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end
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object_methods_s += method
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# if method exists
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if !object_refs.respond_to?( method.to_sym )
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value = "\#{#{object_name}.#{object_methods_s} / no such method}"
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break
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end
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object_refs = object_refs.send( method.to_sym )
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}
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placeholder = if !value
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object_refs
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else
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value
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end
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return placeholder if escape == false || (escape.nil? && !@escape)
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h placeholder
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end
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# c - config
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# c('fqdn', htmlEscape)
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def c(key, escape = nil)
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config = Setting.get(key)
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return config if escape == false || (escape.nil? && !@escape)
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h config
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end
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# t - translation
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# t('yes', htmlEscape)
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def t(key, escape = nil)
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translation = Translation.translate(@locale, key)
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return translation if escape == false || (escape.nil? && !@escape)
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h translation
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end
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# a_html - article body in html
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# a_html(article)
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def a_html(article)
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content_type = d "#{article}.content_type", false
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if content_type =~ /html/
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return d "#{article}.body", false
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end
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d("#{article}.body", false).text2html
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end
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# a_text - article body in text
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# a_text(article)
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def a_text(article)
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content_type = d "#{article}.content_type", false
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body = d "#{article}.body", false
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if content_type =~ /html/
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body = body.html2text
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end
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(body.strip + "\n").gsub(/^(.*?)$/, '> \\1')
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end
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# h - htmlEscape
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# h('fqdn', htmlEscape)
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def h(key)
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return key if !key
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CGI.escapeHTML(key.to_s)
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def strip_html
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# some browsers start adding HTML tags
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# fixes https://github.com/zammad/zammad/issues/385
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@template.gsub!(%r{#\{\s*<[^>]+>([^<]+)</[^>]+>\s*\}}, '\1')
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@template.gsub!(/#\{\s*<[^>]+>([^<]+)\s*\}/, '\1')
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end
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end
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86
test/unit/notification_factory_renderer_test.rb
Normal file
86
test/unit/notification_factory_renderer_test.rb
Normal file
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@ -0,0 +1,86 @@
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# encoding: utf-8
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require 'test_helper'
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class NotificationFactoryRendererTest < ActiveSupport::TestCase
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# TODO: should be mocked somehow
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Translation.load('de-de')
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# RSpec incoming!
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def described_class
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NotificationFactory::Renderer
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end
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Group = Struct.new(:name)
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State = Struct.new(:name)
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User = Struct.new(:firstname, :lastname, :longname, :fullname)
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Ticket = Struct.new(:id, :title, :group, :owner, :state)
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group = Group.new('Users')
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state = State.new('new')
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owner = User.new('Notification<b>xxx</b>', 'Agent1<b>yyy</b>', 'Notification<b>xxx</b> Agent1<b>yyy</b>', 'Notification<b>xxx</b> Agent1<b>yyy</b> (Zammad)')
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current_user = User.new('CurrentUser<b>xxx</b>', 'Agent2<b>yyy</b>', 'CurrentUser<b>xxx</b> Agent2<b>yyy</b>', 'CurrentUser<b>xxx</b> Agent2<b>yyy</b> (Zammad)')
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recipient = User.new('Recipient<b>xxx</b>', 'Customer1<b>yyy</b>', 'Recipient<b>xxx</b> Customer1<b>yyy</b>', 'Recipient<b>xxx</b> Customer1<b>yyy</b> (Zammad)')
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ticket = Ticket.new(1, '<b>Welcome to Zammad!</b>', group, owner, state)
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test 'replace object attribute' do
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template = "<%= d 'ticket.title' %>"
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result = described_class.new(
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{
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ticket: ticket,
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},
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'en-us',
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template,
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).render
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assert_equal(CGI.escapeHTML(ticket.title), result)
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end
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test 'config' do
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setting = 'fqdn'
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template = "<%= c '#{setting}' %>"
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result = described_class.new(
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{
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ticket: ticket,
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},
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'en-us',
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template,
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).render
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assert_equal(Setting.get(setting), result)
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end
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test 'translation' do
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template = "<%= t 'new' %>"
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result = described_class.new(
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{
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ticket: ticket,
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},
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'de-de',
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template,
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).render
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assert_equal('neu', result)
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end
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test 'chained function calls' do
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template = "<%= t d 'ticket.state.name' %>"
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result = described_class.new(
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{
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ticket: ticket,
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},
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'de-de',
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template,
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).render
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assert_equal('neu', result)
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end
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end
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40
test/unit/notification_factory_template_test.rb
Normal file
40
test/unit/notification_factory_template_test.rb
Normal file
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@ -0,0 +1,40 @@
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# encoding: utf-8
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require 'test_helper'
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class NotificationFactoryTemplateTest < ActiveSupport::TestCase
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# RSpec incoming!
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def described_class
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NotificationFactory::Template
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end
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test 'regular browser html' do
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# ensures https://github.com/zammad/zammad/issues/385
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template_before = '<%= d "#{<a href="http://ticket.id" title="http://ticket.id" target="_blank">ticket.id</a>}" %>'
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template_after = '<%= d "ticket.id" %>'
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result = described_class.new(template_before).to_s
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assert_equal(template_after, result)
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end
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test 'spaced browser html' do
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# ensures https://github.com/zammad/zammad/issues/385
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template_before = '<%= d "#{ <a href="http://ticket.id" title="http://ticket.id" target="_blank">ticket.id </a>} " %>'
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template_after = '<%= d "ticket.id " %>'
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result = described_class.new(template_before).to_s
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assert_equal(template_after, result)
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end
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test 'broken browser html' do
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# ensures https://github.com/zammad/zammad/issues/385
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template_before = '<%= d "#{<a href="http://ticket.id" title="http://ticket.id" target="_blank">ticket.id }" %>'
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template_after = '<%= d "ticket.id " %>'
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result = described_class.new(template_before).to_s
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assert_equal(template_after, result)
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end
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end
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