110 lines
3.2 KiB
Ruby
110 lines
3.2 KiB
Ruby
require 'gitlab/markdown'
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module Gitlab
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module Markdown
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# HTML filter that replaces user or group references with links.
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#
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# A special `@all` reference is also supported.
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class UserReferenceFilter < ReferenceFilter
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# Public: Find `@user` user references in text
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#
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# UserReferenceFilter.references_in(text) do |match, username|
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# "<a href=...>@#{user}</a>"
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# end
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#
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# text - String text to search.
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#
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# Yields the String match, and the String user name.
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#
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# Returns a String replaced with the return of the block.
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def self.references_in(text)
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text.gsub(User.reference_pattern) do |match|
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yield match, $~[:user]
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end
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end
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def call
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replace_text_nodes_matching(User.reference_pattern) do |content|
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user_link_filter(content)
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end
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end
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# Replace `@user` user references in text with links to the referenced
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# user's profile page.
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#
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# text - String text to replace references in.
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#
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# Returns a String with `@user` references replaced with links. All links
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# have `gfm` and `gfm-project_member` class names attached for styling.
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def user_link_filter(text)
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self.class.references_in(text) do |match, username|
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if username == 'all'
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link_to_all
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elsif namespace = Namespace.find_by(path: username)
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link_to_namespace(namespace) || match
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else
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match
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end
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end
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end
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private
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def urls
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Rails.application.routes.url_helpers
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end
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def link_class
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reference_class(:project_member)
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end
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def link_to_all
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project = context[:project]
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# FIXME (rspeicher): Law of Demeter
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push_result(:user, *project.team.members.flatten)
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url = urls.namespace_project_url(project.namespace, project,
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only_path: context[:only_path])
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text = User.reference_prefix + 'all'
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%(<a href="#{url}" class="#{link_class}">#{text}</a>)
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end
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def link_to_namespace(namespace)
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if namespace.is_a?(Group)
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link_to_group(namespace.path, namespace)
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else
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link_to_user(namespace.path, namespace)
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end
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end
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def link_to_group(group, namespace)
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return unless user_can_reference_group?(namespace)
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push_result(:user, *namespace.users)
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url = urls.group_url(group, only_path: context[:only_path])
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data = data_attribute(namespace.id, :group)
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text = Group.reference_prefix + group
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%(<a href="#{url}" #{data} class="#{link_class}">#{text}</a>)
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end
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def link_to_user(user, namespace)
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push_result(:user, namespace.owner)
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url = urls.user_url(user, only_path: context[:only_path])
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data = data_attribute(namespace.owner_id, :user)
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text = User.reference_prefix + user
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%(<a href="#{url}" #{data} class="#{link_class}">#{text}</a>)
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end
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def user_can_reference_group?(group)
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Ability.abilities.allowed?(context[:current_user], :read_group, group)
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end
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end
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end
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end
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