make alias and salmon-url optional to support redmatrix

lib/diaspora_federation/discovery/web_finger.rb

@@ -41,6 +41,7 @@ module DiasporaFederation
       property :acct_uri
 
       # @!attribute [r] alias_url
+      #   @note could be nil
       #   @return [String] link to the users profile
       property :alias_url
 
@@ -68,6 +69,7 @@ module DiasporaFederation
       property :atom_url
 
       # @!attribute [r] salmon_url
+      #   @note could be nil
       #   @return [String] salmon endpoint url
       #   @see http://salmon-protocol.googlecode.com/svn/trunk/draft-panzer-salmon-00.html#SMLR
       #     Panzer draft for Salmon, paragraph 3.3
@@ -154,7 +156,7 @@ module DiasporaFederation
 
         new(
           acct_uri:    data[:subject],
-          alias_url:   clean_alias(data[:aliases].first),
+          alias_url:   parse_alias(data[:aliases]),
           hcard_url:   parse_link(links, REL_HCARD),
           seed_url:    parse_link(links, REL_SEED),
           profile_url: parse_link(links, REL_PROFILE),
@@ -176,7 +178,7 @@ module DiasporaFederation
       # @raise [InvalidData] if the given XML string is invalid or incomplete
       def self.parse_xml_and_validate(webfinger_xml)
         XrdDocument.xml_data(webfinger_xml).tap do |data|
-          valid = data.key?(:subject) && data.key?(:aliases) && data.key?(:links)
+          valid = data.key?(:subject) && data.key?(:links)
           raise InvalidData, "webfinger xml is incomplete" unless valid
         end
       end
@@ -218,11 +220,13 @@ module DiasporaFederation
       end
       private_class_method :parse_link
 
-      # @deprecated remove this, when all pods use this gem for generation
-      def self.clean_alias(alias_string)
+      def self.parse_alias(aliases)
+        return nil unless aliases
+        alias_string = aliases.first
+        # Old pods had quotes around alias. Remove this, when all pods use this gem for generation
         alias_string.gsub(/\A"|"\Z/, "")
       end
-      private_class_method :parse_link
+      private_class_method :parse_alias
     end
   end
 end

lib/diaspora_federation/validators/web_finger_validator.rb

@@ -9,12 +9,12 @@ module DiasporaFederation
 
       rule :acct_uri, :not_empty
 
-      rule :alias_url, [:not_nil, URI: %i(host path)]
+      rule :alias_url, URI: %i(host path)
       rule :hcard_url, [:not_nil, URI: %i(host path)]
       rule :seed_url, %i(not_nil URI)
       rule :profile_url, [:not_nil, URI: %i(host path)]
       rule :atom_url, [:not_nil, URI: %i(host path)]
-      rule :salmon_url, [:not_nil, URI: %i(host path)]
+      rule :salmon_url, URI: %i(host path)
     end
   end
 end

spec/lib/diaspora_federation/discovery/web_finger_spec.rb

@@ -96,6 +96,51 @@ XML
         expect(wf.public_key).to eq(person.serialized_public_key)
       end
 
+      it "reads redmatrix XML" do
+        redmatrix_xml = <<-XML
+<?xml version="1.0" encoding="UTF-8"?>
+<XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0">
+
+    <Subject>#{person.diaspora_id}</Subject>
+
+    <Link rel="http://schemas.google.com/g/2010#updates-from"
+          type="application/atom+xml"
+          href="#{person.atom_url}" />
+    <Link rel="http://webfinger.net/rel/profile-page"
+          type="text/html"
+          href="#{person.profile_url}" />
+    <Link rel="http://portablecontacts.net/spec/1.0"
+          href="https://pod.example.tld/poco/trouble" />
+    <Link rel="http://webfinger.net/rel/avatar"
+          type="image/jpeg"
+          href="http://localhost:3000/assets/user/default.png" />
+    <Link rel="http://microformats.org/profile/hcard"
+          type="text/html"
+          href="#{person.hcard_url}" />
+
+    <Link rel="magic-public-key"
+          href="data:application/magic-public-key,RSA.abcdef1234567890" />
+
+    <Link rel="http://joindiaspora.com/seed_location" type="text/html" href="#{person.url}" />
+    <Link rel="http://joindiaspora.com/guid" type="text/html" href="#{person.guid}" />
+    <Link rel="diaspora-public-key" type="RSA" href="#{public_key_base64}" />
+
+</XRD>
+        XML
+
+        wf = Discovery::WebFinger.from_xml(redmatrix_xml)
+        expect(wf.acct_uri).to eq(person.diaspora_id)
+        expect(wf.alias_url).to be_nil
+        expect(wf.hcard_url).to eq(person.hcard_url)
+        expect(wf.seed_url).to eq(person.url)
+        expect(wf.profile_url).to eq(person.profile_url)
+        expect(wf.atom_url).to eq(person.atom_url)
+        expect(wf.salmon_url).to be_nil
+
+        expect(wf.guid).to eq(person.guid)
+        expect(wf.public_key).to eq(person.serialized_public_key)
+      end
+
       it "reads future XML without guid and public key" do
         future_xml = <<-XML
 <?xml version="1.0" encoding="UTF-8"?>

spec/lib/diaspora_federation/validators/web_finger_validator_spec.rb

@@ -24,7 +24,7 @@ module DiasporaFederation
       end
     end
 
-    %i(alias_url hcard_url profile_url atom_url salmon_url).each do |prop|
+    %i(hcard_url profile_url atom_url).each do |prop|
       describe "##{prop}" do
         it_behaves_like "a url validator without path"  do
           let(:property) { prop }
@@ -36,6 +36,39 @@ module DiasporaFederation
       end
     end
 
+    # optional urls
+    %i(alias_url salmon_url).each do |prop|
+      describe "##{prop}" do
+        it "is allowed to be nil" do
+          validator = described_class.new(webfinger_stub(prop => nil))
+
+          expect(validator).to be_valid
+          expect(validator.errors).to be_empty
+        end
+
+        it "must not be empty" do
+          validator = described_class.new(webfinger_stub(prop => ""))
+
+          expect(validator).not_to be_valid
+          expect(validator.errors).to include(prop)
+        end
+
+        it "fails for url with special chars" do
+          validator = described_class.new(webfinger_stub(prop => "https://asdf$%.com"))
+
+          expect(validator).not_to be_valid
+          expect(validator.errors).to include(prop)
+        end
+
+        it "fails for url without scheme" do
+          validator = described_class.new(webfinger_stub(prop => "example.com"))
+
+          expect(validator).not_to be_valid
+          expect(validator.errors).to include(prop)
+        end
+      end
+    end
+
     describe "#seed_url" do
       it_behaves_like "a url validator without path" do
         let(:property) { :seed_url }