|
|
@ -1,8 +1,24 @@
|
|
|
|
require 'parslet'
|
|
|
|
require 'parslet'
|
|
|
|
require 'sanitize'
|
|
|
|
require 'sanitize'
|
|
|
|
|
|
|
|
require 'uri'
|
|
|
|
|
|
|
|
|
|
|
|
module Bristlecode
|
|
|
|
module Bristlecode
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class YoutubeFilter
|
|
|
|
|
|
|
|
def call(env)
|
|
|
|
|
|
|
|
node = env[:node]
|
|
|
|
|
|
|
|
node_name = env[:node_name]
|
|
|
|
|
|
|
|
return if env[:is_whitelisted] || !node.element?
|
|
|
|
|
|
|
|
return unless node_name == 'iframe'
|
|
|
|
|
|
|
|
return unless node['src'] =~ %r|\A(?:https?:)?//(?:www\.)?youtube(?:-nocookie)?\.com/|
|
|
|
|
|
|
|
|
Sanitize.node!(node, {
|
|
|
|
|
|
|
|
:elements => %w[iframe],
|
|
|
|
|
|
|
|
:attributes => {'iframe' => %w[allowfullscreen frameborder height src width]}
|
|
|
|
|
|
|
|
})
|
|
|
|
|
|
|
|
{:node_whitelist => [node]}
|
|
|
|
|
|
|
|
end
|
|
|
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
|
|
Config = Sanitize::Config::freeze_config(
|
|
|
|
Config = Sanitize::Config::freeze_config(
|
|
|
|
:elements => %w[b em i strong u a strike br img],
|
|
|
|
:elements => %w[b em i strong u a strike br img],
|
|
|
|
:attributes => {
|
|
|
|
:attributes => {
|
|
|
@ -14,7 +30,8 @@ module Bristlecode
|
|
|
|
},
|
|
|
|
},
|
|
|
|
:protocols => {
|
|
|
|
:protocols => {
|
|
|
|
'a' => {'href' => ['http', 'https', :relative]}
|
|
|
|
'a' => {'href' => ['http', 'https', :relative]}
|
|
|
|
}
|
|
|
|
},
|
|
|
|
|
|
|
|
:transformers => [YoutubeFilter.new]
|
|
|
|
)
|
|
|
|
)
|
|
|
|
|
|
|
|
|
|
|
|
def Bristlecode.to_html(text)
|
|
|
|
def Bristlecode.to_html(text)
|
|
|
@ -29,6 +46,7 @@ module Bristlecode
|
|
|
|
Sanitize.fragment(html, Bristlecode::Config)
|
|
|
|
Sanitize.fragment(html, Bristlecode::Config)
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def Bristlecode.clean!(text)
|
|
|
|
def Bristlecode.clean!(text)
|
|
|
|
text.gsub!('&', '&')
|
|
|
|
text.gsub!('&', '&')
|
|
|
|
text.gsub!('<', '<')
|
|
|
|
text.gsub!('<', '<')
|
|
|
@ -64,16 +82,21 @@ module Bristlecode
|
|
|
|
}
|
|
|
|
}
|
|
|
|
rule(:url) { (simple_url | url_with_title).as(:url) }
|
|
|
|
rule(:url) { (simple_url | url_with_title).as(:url) }
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
rule(:youtube_open) { str('[youtube]') }
|
|
|
|
|
|
|
|
rule(:youtube_close) { str('[/youtube]') }
|
|
|
|
|
|
|
|
rule(:youtube_url) { (youtube_close.absent? >> any).repeat(1) }
|
|
|
|
|
|
|
|
rule(:youtube) { (youtube_open >> youtube_url.as(:src) >> youtube_close).as(:youtube) }
|
|
|
|
|
|
|
|
|
|
|
|
rule(:img_open) { str('[img]') }
|
|
|
|
rule(:img_open) { str('[img]') }
|
|
|
|
rule(:img_close) { str('[/img]') }
|
|
|
|
rule(:img_close) { str('[/img]') }
|
|
|
|
rule(:img_src) { (img_close.absent? >> any).repeat(1) }
|
|
|
|
rule(:img_src) { (img_close.absent? >> any).repeat(1) }
|
|
|
|
rule(:img) { (img_open >> img_src.as(:src) >> img_close).as(:img) }
|
|
|
|
rule(:img) { (img_open >> img_src.as(:src) >> img_close).as(:img) }
|
|
|
|
|
|
|
|
|
|
|
|
rule(:eof) { any.absent? }
|
|
|
|
rule(:eof) { any.absent? }
|
|
|
|
rule(:tag) { bold | italic | url | linebreak | img }
|
|
|
|
rule(:tag) { bold | italic | url | linebreak | img | youtube }
|
|
|
|
rule(:elem) { text.as(:text) | tag }
|
|
|
|
rule(:elem) { text.as(:text) | tag }
|
|
|
|
rule(:tag_open) { bold_open | italic_open | url_open | url_title_open | img_open }
|
|
|
|
rule(:tag_open) { bold_open | italic_open | url_open | url_title_open | img_open | youtube_open }
|
|
|
|
rule(:tag_close) { bold_close | italic_close | url_close | img_close }
|
|
|
|
rule(:tag_close) { bold_close | italic_close | url_close | img_close | youtube_close }
|
|
|
|
rule(:tag_delim) { tag_open | tag_close | linebreak }
|
|
|
|
rule(:tag_delim) { tag_open | tag_close | linebreak }
|
|
|
|
|
|
|
|
|
|
|
|
rule(:text) { (tag_delim.absent? >> any).repeat(1) }
|
|
|
|
rule(:text) { (tag_delim.absent? >> any).repeat(1) }
|
|
|
@ -90,6 +113,7 @@ module Bristlecode
|
|
|
|
rule(url: subtree(:url)) { Url.new(url) }
|
|
|
|
rule(url: subtree(:url)) { Url.new(url) }
|
|
|
|
rule(br: simple(:br)) { Linebreak.new }
|
|
|
|
rule(br: simple(:br)) { Linebreak.new }
|
|
|
|
rule(img: subtree(:img)) { Img.new(img) }
|
|
|
|
rule(img: subtree(:img)) { Img.new(img) }
|
|
|
|
|
|
|
|
rule(youtube: subtree(:youtube)) { Youtube.new(youtube) }
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
|
|
class Doc
|
|
|
|
class Doc
|
|
|
@ -180,11 +204,8 @@ module Bristlecode
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
|
|
def to_html
|
|
|
|
def to_html
|
|
|
|
if href_ok?
|
|
|
|
return to_text unless href_ok?
|
|
|
|
"<a href=\"#{href}\">#{title.to_html}</a>"
|
|
|
|
"<a href=\"#{href}\">#{title.to_html}</a>"
|
|
|
|
else
|
|
|
|
|
|
|
|
to_text
|
|
|
|
|
|
|
|
end
|
|
|
|
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
|
|
def to_text
|
|
|
|
def to_text
|
|
|
@ -220,11 +241,8 @@ module Bristlecode
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
|
|
def to_html
|
|
|
|
def to_html
|
|
|
|
if src_ok?
|
|
|
|
return to_text unless src_ok?
|
|
|
|
"<img src=\"#{src}\">"
|
|
|
|
"<img src=\"#{src}\">"
|
|
|
|
else
|
|
|
|
|
|
|
|
to_text
|
|
|
|
|
|
|
|
end
|
|
|
|
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
|
|
def to_text
|
|
|
|
def to_text
|
|
|
@ -233,4 +251,40 @@ module Bristlecode
|
|
|
|
text
|
|
|
|
text
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class Youtube
|
|
|
|
|
|
|
|
attr_accessor :raw_url, :video_id
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def initialize(args)
|
|
|
|
|
|
|
|
self.raw_url = args[:src].to_str.strip
|
|
|
|
|
|
|
|
self.video_id = parse_url
|
|
|
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def parse_url
|
|
|
|
|
|
|
|
begin
|
|
|
|
|
|
|
|
uri = URI::parse(raw_url)
|
|
|
|
|
|
|
|
return false unless ['http', 'https'].include? uri.scheme
|
|
|
|
|
|
|
|
return false unless ['www.youtube.com', 'youtube.com', 'youtu.be'].include? uri.host
|
|
|
|
|
|
|
|
if uri.host == 'youtu.be'
|
|
|
|
|
|
|
|
return uri.path[1..-1]
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
URI::decode_www_form(uri.query).each{|key, value| return value if key == 'v'}
|
|
|
|
|
|
|
|
end
|
|
|
|
|
|
|
|
rescue URI::InvalidURIError
|
|
|
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
return false
|
|
|
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def to_html
|
|
|
|
|
|
|
|
return to_text unless video_id
|
|
|
|
|
|
|
|
"<iframe width=\"560\" height=\"315\" src=\"https://www.youtube.com/embed/#{video_id}\" frameborder=\"0\" allowfullscreen></iframe>"
|
|
|
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def to_text
|
|
|
|
|
|
|
|
text = "[youtube]#{raw_url}[/youtube]"
|
|
|
|
|
|
|
|
Bristlecode.clean!(text)
|
|
|
|
|
|
|
|
text
|
|
|
|
|
|
|
|
end
|
|
|
|
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|