diff options
Diffstat (limited to 'lib/banzai')
-rw-r--r-- | lib/banzai/filter/external_link_filter.rb | 1 | ||||
-rw-r--r-- | lib/banzai/filter/inline_diff_filter.rb | 12 | ||||
-rw-r--r-- | lib/banzai/filter/reference_filter.rb | 7 | ||||
-rw-r--r-- | lib/banzai/filter/user_reference_filter.rb | 29 | ||||
-rw-r--r-- | lib/banzai/filter/wiki_link_filter.rb | 32 | ||||
-rw-r--r-- | lib/banzai/filter/wiki_link_filter/rewriter.rb | 40 |
6 files changed, 89 insertions, 32 deletions
diff --git a/lib/banzai/filter/external_link_filter.rb b/lib/banzai/filter/external_link_filter.rb index 38c4219518e..f73ecfc9418 100644 --- a/lib/banzai/filter/external_link_filter.rb +++ b/lib/banzai/filter/external_link_filter.rb @@ -15,6 +15,7 @@ module Banzai next if link.start_with?(internal_url) node.set_attribute('rel', 'nofollow noreferrer') + node.set_attribute('target', '_blank') end doc diff --git a/lib/banzai/filter/inline_diff_filter.rb b/lib/banzai/filter/inline_diff_filter.rb index 9e75edd4d4c..beb21b19ab3 100644 --- a/lib/banzai/filter/inline_diff_filter.rb +++ b/lib/banzai/filter/inline_diff_filter.rb @@ -8,15 +8,19 @@ module Banzai next if has_ancestor?(node, IGNORED_ANCESTOR_TAGS) content = node.to_html - content = content.gsub(/(?:\[\-(.*?)\-\]|\{\-(.*?)\-\})/, '<span class="idiff left right deletion">\1\2</span>') - content = content.gsub(/(?:\[\+(.*?)\+\]|\{\+(.*?)\+\})/, '<span class="idiff left right addition">\1\2</span>') + html_content = inline_diff_filter(content) - next if html == content + next if content == html_content - node.replace(content) + node.replace(html_content) end doc end + + def inline_diff_filter(text) + html_content = text.gsub(/(?:\[\-(.*?)\-\]|\{\-(.*?)\-\})/, '<span class="idiff left right deletion">\1\2</span>') + html_content.gsub(/(?:\[\+(.*?)\+\]|\{\+(.*?)\+\})/, '<span class="idiff left right addition">\1\2</span>') + end end end end diff --git a/lib/banzai/filter/reference_filter.rb b/lib/banzai/filter/reference_filter.rb index 41ae0e1f9cc..2d6f34c9cd8 100644 --- a/lib/banzai/filter/reference_filter.rb +++ b/lib/banzai/filter/reference_filter.rb @@ -68,6 +68,8 @@ module Banzai # by `ignore_ancestor_query`. Link tags are not processed if they have a # "gfm" class or the "href" attribute is empty. def each_node + return to_enum(__method__) unless block_given? + query = %Q{descendant-or-self::text()[not(#{ignore_ancestor_query})] | descendant-or-self::a[ not(contains(concat(" ", @class, " "), " gfm ")) and not(@href = "") @@ -78,6 +80,11 @@ module Banzai end end + # Returns an Array containing all HTML nodes. + def nodes + @nodes ||= each_node.to_a + end + # Yields the link's URL and text whenever the node is a valid <a> tag. def yield_valid_link(node) link = CGI.unescape(node.attr('href').to_s) diff --git a/lib/banzai/filter/user_reference_filter.rb b/lib/banzai/filter/user_reference_filter.rb index 331d8007257..5b0a6d8541b 100644 --- a/lib/banzai/filter/user_reference_filter.rb +++ b/lib/banzai/filter/user_reference_filter.rb @@ -29,7 +29,7 @@ module Banzai ref_pattern = User.reference_pattern ref_pattern_start = /\A#{ref_pattern}\z/ - each_node do |node| + nodes.each do |node| if text_node?(node) replace_text_when_pattern_matches(node, ref_pattern) do |content| user_link_filter(content) @@ -59,7 +59,7 @@ module Banzai self.class.references_in(text) do |match, username| if username == 'all' link_to_all(link_text: link_text) - elsif namespace = Namespace.find_by(path: username) + elsif namespace = namespaces[username] link_to_namespace(namespace, link_text: link_text) || match else match @@ -67,6 +67,31 @@ module Banzai end end + # Returns a Hash containing all Namespace objects for the username + # references in the current document. + # + # The keys of this Hash are the namespace paths, the values the + # corresponding Namespace objects. + def namespaces + @namespaces ||= + Namespace.where(path: usernames).each_with_object({}) do |row, hash| + hash[row.path] = row + end + end + + # Returns all usernames referenced in the current document. + def usernames + refs = Set.new + + nodes.each do |node| + node.to_html.scan(User.reference_pattern) do + refs << $~[:user] + end + end + + refs.to_a + end + private def urls diff --git a/lib/banzai/filter/wiki_link_filter.rb b/lib/banzai/filter/wiki_link_filter.rb index 7dc771afd71..37a2779d453 100644 --- a/lib/banzai/filter/wiki_link_filter.rb +++ b/lib/banzai/filter/wiki_link_filter.rb @@ -2,7 +2,8 @@ require 'uri' module Banzai module Filter - # HTML filter that "fixes" relative links to files in a repository. + # HTML filter that "fixes" links to pages/files in a wiki. + # Rewrite rules are documented in the `WikiPipeline` spec. # # Context options: # :project_wiki @@ -25,36 +26,15 @@ module Banzai end def process_link_attr(html_attr) - return if html_attr.blank? || file_reference?(html_attr) || hierarchical_link?(html_attr) + return if html_attr.blank? - uri = URI(html_attr.value) - if uri.relative? && uri.path.present? - html_attr.value = rebuild_wiki_uri(uri).to_s - end + html_attr.value = apply_rewrite_rules(html_attr.value) rescue URI::Error # noop end - def rebuild_wiki_uri(uri) - uri.path = ::File.join(project_wiki_base_path, uri.path) - uri - end - - def project_wiki - context[:project_wiki] - end - - def file_reference?(html_attr) - !File.extname(html_attr.value).blank? - end - - # Of the form `./link`, `../link`, or similar - def hierarchical_link?(html_attr) - html_attr.value[0] == '.' - end - - def project_wiki_base_path - project_wiki && project_wiki.wiki_base_path + def apply_rewrite_rules(link_string) + Rewriter.new(link_string, wiki: context[:project_wiki], slug: context[:page_slug]).apply_rules end end end diff --git a/lib/banzai/filter/wiki_link_filter/rewriter.rb b/lib/banzai/filter/wiki_link_filter/rewriter.rb new file mode 100644 index 00000000000..2e2c8da311e --- /dev/null +++ b/lib/banzai/filter/wiki_link_filter/rewriter.rb @@ -0,0 +1,40 @@ +module Banzai + module Filter + class WikiLinkFilter < HTML::Pipeline::Filter + class Rewriter + def initialize(link_string, wiki:, slug:) + @uri = Addressable::URI.parse(link_string) + @wiki_base_path = wiki && wiki.wiki_base_path + @slug = slug + end + + def apply_rules + apply_file_link_rules! + apply_hierarchical_link_rules! + apply_relative_link_rules! + @uri.to_s + end + + private + + # Of the form 'file.md' + def apply_file_link_rules! + @uri = Addressable::URI.join(@slug, @uri) if @uri.extname.present? + end + + # Of the form `./link`, `../link`, or similar + def apply_hierarchical_link_rules! + @uri = Addressable::URI.join(@slug, @uri) if @uri.to_s[0] == '.' + end + + # Any link _not_ of the form `http://example.com/` + def apply_relative_link_rules! + if @uri.relative? && @uri.path.present? + link = ::File.join(@wiki_base_path, @uri.path) + @uri = Addressable::URI.parse(link) + end + end + end + end + end +end |