111 lines
4.2 KiB
Ruby
111 lines
4.2 KiB
Ruby
require 'html/pipeline'
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require 'task_list/filter'
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module Gitlab
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# Custom parser for GitLab-flavored Markdown
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#
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# See the files in `lib/gitlab/markdown/` for specific processing information.
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module Markdown
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# Provide autoload paths for filters to prevent a circular dependency error
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autoload :AutolinkFilter, 'gitlab/markdown/autolink_filter'
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autoload :CommitRangeReferenceFilter, 'gitlab/markdown/commit_range_reference_filter'
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autoload :CommitReferenceFilter, 'gitlab/markdown/commit_reference_filter'
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autoload :EmojiFilter, 'gitlab/markdown/emoji_filter'
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autoload :ExternalIssueReferenceFilter, 'gitlab/markdown/external_issue_reference_filter'
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autoload :IssueReferenceFilter, 'gitlab/markdown/issue_reference_filter'
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autoload :LabelReferenceFilter, 'gitlab/markdown/label_reference_filter'
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autoload :MergeRequestReferenceFilter, 'gitlab/markdown/merge_request_reference_filter'
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autoload :SanitizationFilter, 'gitlab/markdown/sanitization_filter'
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autoload :SnippetReferenceFilter, 'gitlab/markdown/snippet_reference_filter'
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autoload :TableOfContentsFilter, 'gitlab/markdown/table_of_contents_filter'
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autoload :UserReferenceFilter, 'gitlab/markdown/user_reference_filter'
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# Public: Parse the provided text with GitLab-Flavored Markdown
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#
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# text - the source text
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# project - the project
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# html_options - extra options for the reference links as given to link_to
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def gfm(text, project = @project, html_options = {})
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gfm_with_options(text, {}, project, html_options)
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end
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# Public: Parse the provided text with GitLab-Flavored Markdown
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#
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# text - the source text
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# options - A Hash of options used to customize output (default: {}):
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# :xhtml - output XHTML instead of HTML
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# :reference_only_path - Use relative path for reference links
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# project - the project
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# html_options - extra options for the reference links as given to link_to
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def gfm_with_options(text, options = {}, project = @project, html_options = {})
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return text if text.nil?
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# Duplicate the string so we don't alter the original, then call to_str
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# to cast it back to a String instead of a SafeBuffer. This is required
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# for gsub calls to work as we need them to.
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text = text.dup.to_str
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options.reverse_merge!(
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xhtml: false,
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reference_only_path: true
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)
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pipeline = HTML::Pipeline.new(filters)
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context = {
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# EmojiFilter
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asset_root: Gitlab.config.gitlab.url,
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asset_host: Gitlab::Application.config.asset_host,
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# TableOfContentsFilter
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no_header_anchors: options[:no_header_anchors],
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# ReferenceFilter
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current_user: current_user,
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only_path: options[:reference_only_path],
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project: project,
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reference_class: html_options[:class]
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}
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result = pipeline.call(text, context)
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save_options = 0
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if options[:xhtml]
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save_options |= Nokogiri::XML::Node::SaveOptions::AS_XHTML
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end
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text = result[:output].to_html(save_with: save_options)
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text.html_safe
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end
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private
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# Filters used in our pipeline
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#
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# SanitizationFilter should come first so that all generated reference HTML
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# goes through untouched.
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#
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# See https://github.com/jch/html-pipeline#filters for more filters.
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def filters
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[
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Gitlab::Markdown::SanitizationFilter,
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Gitlab::Markdown::EmojiFilter,
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Gitlab::Markdown::TableOfContentsFilter,
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Gitlab::Markdown::AutolinkFilter,
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Gitlab::Markdown::UserReferenceFilter,
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Gitlab::Markdown::IssueReferenceFilter,
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Gitlab::Markdown::ExternalIssueReferenceFilter,
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Gitlab::Markdown::MergeRequestReferenceFilter,
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Gitlab::Markdown::SnippetReferenceFilter,
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Gitlab::Markdown::CommitRangeReferenceFilter,
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Gitlab::Markdown::CommitReferenceFilter,
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Gitlab::Markdown::LabelReferenceFilter,
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TaskList::Filter
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]
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end
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end
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end
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