Squash some minor 4.x bugs

bin/htmlproofer

@@ -24,7 +24,7 @@ Mercenary.program(:htmlproofer) do |p|
   p.option 'check_sri', '--check-sri', 'Check that `<link>` and `<script>` external resources use SRI (default: `false`).'
   p.option 'directory_index_file', '--directory-index-file <filename>', String, 'Sets the file to look for when a link refers to a directory. (default: `index.html`)'
   p.option 'disable_external', '--disable-external', 'If `true`, does not run the external link checker (default: `false`)'
-  p.option 'enforce_https', '--enforce-https', 'Fails a link if it\'s not marked as `https` (default: `true`).'
+  p.option 'enforce_https', '--enforce-https <false>', String, 'Fails a link if it\'s not marked as `https` (default: `true`).'
   p.option 'extensions', '--extensions ext1,[ext2,...[', Array, 'A comma-separated list of Strings indicating the file extensions you would like to check (including the dot) (default: `.html`)'
   p.option 'ignore_empty_alt', '--ignore-empty-alt', ' If `true`, ignores images with empty/missing alt tags (in other words, `<img alt>` and `<img alt="">` are valid; set this to `false` to flag those)'
   p.option 'ignore_files', '--ignore-files file1,[file2,...]', Array, 'A comma-separated list of Strings or RegExps containing file paths that are safe to ignore'
@@ -67,6 +67,8 @@ Mercenary.program(:htmlproofer) do |p|
       end
     end
 
+    options[:enforce_https] = false if opts['enforce_https'] == "false"
+
     options[:log_level] = opts['log_level'].to_sym unless opts['log_level'].nil?
 
     options[:typhoeus] = HTMLProofer::Configuration.parse_json_option('typhoeus', opts['typhoeus'], symbolize_names: false) unless opts['typhoeus'].nil?

lib/html_proofer/check/images.rb

@@ -20,12 +20,21 @@ def run
             add_failure("image has no src or srcset attribute", line: @img.line, content: @img.content)
           elsif @img.url.remote?
             add_to_external_urls(@img.url, @img.line)
-          elsif !@img.url.exists? && !@img.multiple_srcsets?
+          elsif !@img.url.exists? && !@img.multiple_srcsets? && !@img.multiple_sizes?
             add_failure("internal image #{@img.url.raw_attribute} does not exist", line: @img.line,
               content: @img.content)
           elsif @img.multiple_srcsets?
-            srcsets = @img.srcset.split(",").map(&:strip)
-            srcsets.each do |srcset|
+            @img.srcsets.each do |srcset|
+              srcset_url = HTMLProofer::Attribute::Url.new(@runner, srcset, base_url: @img.base_url)
+
+              if srcset_url.remote?
+                add_to_external_urls(srcset_url.url, @img.line)
+              elsif !srcset_url.exists?
+                add_failure("internal image #{srcset} does not exist", line: @img.line, content: @img.content)
+              end
+            end
+          elsif @img.multiple_sizes?
+            @img.srcsets_wo_sizes.each do |srcset|
               srcset_url = HTMLProofer::Attribute::Url.new(@runner, srcset, base_url: @img.base_url)
 
               if srcset_url.remote?

lib/html_proofer/element.rb

@@ -84,6 +84,28 @@ def multiple_srcsets?
       !blank?(srcset) && srcset.split(",").size > 1
     end
 
+    def srcsets
+      return nil if blank?(srcset)
+
+      srcset.split(",").map(&:strip)
+    end
+
+    def multiple_sizes?
+      return false if blank?(srcsets)
+
+      srcsets.any? do |srcset|
+        !blank?(srcset) && srcset.split(" ").size > 1
+      end
+    end
+
+    def srcsets_wo_sizes
+      return nil if blank?(srcsets)
+
+      srcsets.map do |srcset|
+        srcset.split(" ").first
+      end
+    end
+
     def ignore?
       return true if @node.attributes["data-proofer-ignore"]
       return true if ancestors_ignorable?

spec/html-proofer/command_spec.rb

@@ -100,6 +100,16 @@
     expect(output).to(match("successfully"))
   end
 
+  it "works with enforce-https" do
+    custom_data_src_check = File.join(FIXTURES_DIR, "images", "src_http.html")
+    output = make_bin(custom_data_src_check.to_s)
+    expect(output).to(match("1 failure"))
+
+    custom_data_src_check = File.join(FIXTURES_DIR, "images", "src_http.html")
+    output = make_bin("#{custom_data_src_check} --enforce-https=false")
+    expect(output).to(match("successfully"))
+  end
+
   it "has every option for proofer defaults" do
     match_command_help(HTMLProofer::Configuration::PROOFER_DEFAULTS)
   end

spec/html-proofer/fixtures/images/srcset-pixel-density.html

@@ -0,0 +1,5 @@
+<html>
+  <body>
+    <img srcset="1.webp 1.5x" alt="test" width="100" height="150" />
+  </body>
+</html>

spec/html-proofer/fixtures/images/srcset-pixel-density_broken.html

@@ -0,0 +1,5 @@
+<html>
+  <body>
+    <img srcset="foo.webp 1.5x" alt="test" width="100" height="150" />
+  </body>
+</html>

spec/html-proofer/images_spec.rb

@@ -247,4 +247,16 @@
     proofer = run_proofer(custom_data_src_check, :file, swap_attributes: { "img" => [["src", "foobar"]] })
     expect(proofer.failed_checks.length).to(eq(1))
   end
+
+  it "works for images with srcset and pixel density" do
+    custom_data_src_check = "#{FIXTURES_DIR}/images/srcset-pixel-density.html"
+    proofer = run_proofer(custom_data_src_check, :file)
+    expect(proofer.failed_checks).to(eq([]))
+  end
+
+  it "breaks for images with invalid srcset and pixel density" do
+    custom_data_src_check = "#{FIXTURES_DIR}/images/srcset-pixel-density_broken.html"
+    proofer = run_proofer(custom_data_src_check, :file)
+    expect(proofer.failed_checks.first.description).to(match(/foo.webp does not exist/))
+  end
 end