X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/17a39e804f44ae78527b6ef1277e7d835f810f62..437eb1fa8a518e760d76e51a1ab6ddd20c39ffc9:/lib/rich_text.rb

diff --git a/lib/rich_text.rb b/lib/rich_text.rb
index a439342f7..792497307 100644
--- a/lib/rich_text.rb
+++ b/lib/rich_text.rb
@@ -1,8 +1,12 @@
+# frozen_string_literal: true
+
 module RichText
   SPAMMY_PHRASES = [
     "Business Description:", "Additional Keywords:"
   ].freeze
 
+  MAX_DESCRIPTION_LENGTH = 500
+
   def self.new(format, text)
     case format
     when "html" then HTML.new(text || "")
@@ -21,8 +25,6 @@ module RichText
   end
 
   class Base < String
-    include ActionView::Helpers::TagHelper
-
     def spam_score
       link_count = 0
       link_size = 0
@@ -57,10 +59,14 @@ module RichText
       nil
     end
 
+    def description
+      nil
+    end
+
     protected
 
     def simple_format(text)
-      SimpleFormat.new.simple_format(text)
+      SimpleFormat.new.simple_format(text, :dir => "auto")
     end
 
     def sanitize(text)
@@ -68,17 +74,35 @@ module RichText
     end
 
     def linkify(text, mode = :urls)
-      if text.html_safe?
-        Rinku.auto_link(text, mode, tag_builder.tag_options(:rel => "nofollow noopener noreferrer")).html_safe
-      else
-        Rinku.auto_link(text, mode, tag_builder.tag_options(:rel => "nofollow noopener noreferrer"))
-      end
+      link_attr = 'rel="nofollow noopener noreferrer"'
+      Rinku.auto_link(ERB::Util.html_escape(text), mode, link_attr) do |url|
+        url = shorten_host(url, Settings.linkify_hosts, Settings.linkify_hosts_replacement)
+        shorten_host(url, Settings.linkify_wiki_hosts, Settings.linkify_wiki_hosts_replacement) do |path|
+          path.sub(Regexp.new(Settings.linkify_wiki_optional_path_prefix || ""), "")
+        end
+      end.html_safe
+    end
+
+    private
+
+    def shorten_host(url, hosts, hosts_replacement)
+      %r{^(https?://([^/]*))(.*)$}.match(url) do |m|
+        scheme_host, host, path = m.captures
+        if hosts&.include?(host)
+          path = yield(path) if block_given?
+          if hosts_replacement
+            "#{hosts_replacement}#{path}"
+          else
+            "#{scheme_host}#{path}"
+          end
+        end || url
+      end || url
     end
   end
 
   class HTML < Base
     def to_html
-      linkify(sanitize(simple_format(self)))
+      linkify(simple_format(self))
     end
 
     def to_text
@@ -105,6 +129,12 @@ module RichText
       @image_element.attr["alt"] if @image_element
     end
 
+    def description
+      return @description if defined? @description
+
+      @description = first_truncated_text_content(document.root)
+    end
+
     private
 
     def document
@@ -120,9 +150,44 @@ module RichText
       end
     end
 
+    def first_truncated_text_content(element)
+      if paragraph?(element)
+        truncated_text_content(element)
+      else
+        element.children.find do |child|
+          text = first_truncated_text_content(child)
+          break text unless text.nil?
+        end
+      end
+    end
+
+    def truncated_text_content(element)
+      text = +""
+
+      append_text = lambda do |child|
+        if child.type == :text
+          text << child.value
+        else
+          child.children.each do |c|
+            append_text.call(c)
+            break if text.length > MAX_DESCRIPTION_LENGTH
+          end
+        end
+      end
+      append_text.call(element)
+
+      return nil if text.blank?
+
+      text.truncate(MAX_DESCRIPTION_LENGTH)
+    end
+
     def image?(element)
       element.type == :img || (element.type == :html_element && element.value == "img")
     end
+
+    def paragraph?(element)
+      element.type == :p || (element.type == :html_element && element.value == "p")
+    end
   end
 
   class Text < Base