Replace diaspora:// links in the text

lib/diaspora/message_renderer.rb

@@ -95,6 +95,12 @@ module Diaspora
       def normalize
         @message = self.class.normalize(@message)
       end
+
+      def diaspora_links
+        @message = @message.gsub(DiasporaFederation::Federation::DiasporaUrlParser::DIASPORA_URL_REGEX) {|match_str|
+          Regexp.last_match(2) == "post" ? AppConfig.url_to("/posts/#{Regexp.last_match(3)}") : match_str
+        }
+      end
     end
 
     DEFAULTS = {mentioned_people: [],
@@ -158,6 +164,7 @@ module Diaspora
     def plain_text opts={}
       process(opts) {
         make_mentions_plain_text
+        diaspora_links
         squish
         append_and_truncate
       }
@@ -167,6 +174,7 @@ module Diaspora
     def plain_text_without_markdown opts={}
       process(opts) {
         make_mentions_plain_text
+        diaspora_links
         strip_markdown
         squish
         append_and_truncate
@@ -177,6 +185,7 @@ module Diaspora
     def plain_text_for_json opts={}
       process(opts) {
         normalize
+        diaspora_links
         camo_urls if AppConfig.privacy.camo.proxy_markdown_images?
       }
     end
@@ -186,6 +195,7 @@ module Diaspora
       process(opts) {
         escape
         normalize
+        diaspora_links
         render_mentions
         render_tags
         squish
@@ -198,6 +208,7 @@ module Diaspora
       process(opts) {
         process_newlines
         normalize
+        diaspora_links
         camo_urls if AppConfig.privacy.camo.proxy_markdown_images?
         markdownify
         render_mentions

spec/lib/diaspora/message_renderer_spec.rb

 # frozen_string_literal: true
 
 describe Diaspora::MessageRenderer do
-  MESSAGE_NORMALIZTIONS = {
-    "\u202a#\u200eUSA\u202c" => "#USA",
-    "ള്‍"                     => "ള്‍"
-  }
-
   def message(text, opts={})
     Diaspora::MessageRenderer.new(text, opts)
   end
@@ -100,6 +95,20 @@ describe Diaspora::MessageRenderer do
         end
       end
     end
+
+    context "with diaspora:// links" do
+      it "replaces diaspora:// links with pod-local links" do
+        target = FactoryGirl.create(:status_message)
+        expect(
+          message("Have a look at diaspora://#{target.diaspora_handle}/post/#{target.guid}.").html
+        ).to match(/Have a look at #{AppConfig.url_to("/posts/#{target.guid}")}./)
+      end
+
+      it "doesn't touch invalid diaspora:// links" do
+        text = "You can create diaspora://author/type/guid links!"
+        expect(message(text).html).to match(/#{text}/)
+      end
+    end
   end
 
   describe "#markdownified" do
@@ -128,8 +137,11 @@ describe Diaspora::MessageRenderer do
     end
 
     it "normalizes" do
-      MESSAGE_NORMALIZTIONS.each do |input, output|
-        expect(message(input).plain_text_for_json).to eq output
+      {
+        "\u202a#\u200eUSA\u202c" => "<p><a class=\"tag\" href=\"/tags/USA\">#USA</a></p>\n",
+        "ള്‍"                    => "<p>ള്‍</p>\n"
+      }.each do |input, output|
+        expect(message(input).markdownified).to eq output
       end
     end
 
@@ -180,6 +192,25 @@ describe Diaspora::MessageRenderer do
         entities = '&amp; &szlig; &#x27; &#39; &quot;'
         expect(message(entities).markdownified).to eq "<p>#{entities}</p>\n"
       end
+
+      context "with diaspora:// links" do
+        it "replaces diaspora:// links with pod-local links" do
+          target1 = FactoryGirl.create(:status_message)
+          target2 = FactoryGirl.create(:status_message)
+          text = "Have a look at [this post](diaspora://#{target1.diaspora_handle}/post/#{target1.guid}) and " \
+                 "this one too diaspora://#{target2.diaspora_handle}/post/#{target2.guid}."
+
+          rendered = message(text).markdownified
+
+          expect(rendered).to match(%r{at <a href="#{AppConfig.url_to("/posts/#{target1.guid}")}">this post</a> and})
+          expect(rendered).to match(/this one too #{AppConfig.url_to("/posts/#{target2.guid}")}./)
+        end
+
+        it "doesn't touch invalid diaspora:// links" do
+          text = "You can create diaspora://author/type/guid links!"
+          expect(message(text).markdownified).to match(/#{text}/)
+        end
+      end
     end
   end
 
@@ -210,6 +241,25 @@ describe Diaspora::MessageRenderer do
         expect(msg.plain_text_without_markdown).to eq "@#{alice.diaspora_handle} is cool"
       end
     end
+
+    context "with diaspora:// links" do
+      it "replaces diaspora:// links with pod-local links" do
+        target1 = FactoryGirl.create(:status_message)
+        target2 = FactoryGirl.create(:status_message)
+        text = "Have a look at [this post](diaspora://#{target1.diaspora_handle}/post/#{target1.guid}) and " \
+               "this one too diaspora://#{target2.diaspora_handle}/post/#{target2.guid}."
+
+        rendered = message(text).plain_text_without_markdown
+
+        expect(rendered).to match(/look at this post \(#{AppConfig.url_to("/posts/#{target1.guid}")}\) and/)
+        expect(rendered).to match(/this one too #{AppConfig.url_to("/posts/#{target2.guid}")}./)
+      end
+
+      it "doesn't touch invalid diaspora:// links" do
+        text = "You can create diaspora://author/type/guid links!"
+        expect(message(text).plain_text_without_markdown).to match(/#{text}/)
+      end
+    end
   end
 
   describe "#urls" do
@@ -241,9 +291,31 @@ describe Diaspora::MessageRenderer do
 
   describe "#plain_text_for_json" do
     it "normalizes" do
-      MESSAGE_NORMALIZTIONS.each do |input, output|
+      {
+        "\u202a#\u200eUSA\u202c" => "#USA",
+        "ള്‍"                    => "ള്‍"
+      }.each do |input, output|
         expect(message(input).plain_text_for_json).to eq output
       end
     end
+
+    context "with diaspora:// links" do
+      it "replaces diaspora:// links with pod-local links" do
+        target1 = FactoryGirl.create(:status_message)
+        target2 = FactoryGirl.create(:status_message)
+        text = "Have a look at [this post](diaspora://#{target1.diaspora_handle}/post/#{target1.guid}) and " \
+               "this one too diaspora://#{target2.diaspora_handle}/post/#{target2.guid}."
+
+        rendered = message(text).plain_text_for_json
+
+        expect(rendered).to match(/look at \[this post\]\(#{AppConfig.url_to("/posts/#{target1.guid}")}\) and/)
+        expect(rendered).to match(/this one too #{AppConfig.url_to("/posts/#{target2.guid}")}./)
+      end
+
+      it "doesn't touch invalid diaspora:// links" do
+        text = "You can create diaspora://author/type/guid links!"
+        expect(message(text).plain_text_for_json).to match(/#{text}/)
+      end
+    end
   end
 end