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# frozen_string_literal: true
module Integrations
module ChatMessage
class BaseMessage
RELATIVE_LINK_REGEX = %r{!\[[^\]]*\]\((/uploads/[^\)]*)\)}.freeze
# Markup characters which are used for links in HTML, Markdown,
# and Slack "mrkdwn" syntax (`<http://example.com|Label>`).
UNSAFE_MARKUP_CHARACTERS = '<>[]|'
attr_reader :markdown
attr_reader :user_full_name
attr_reader :user_name
attr_reader :user_avatar
attr_reader :project_name
attr_reader :project_url
def initialize(params)
@markdown = params[:markdown] || false
@project_name = params[:project_name] || params.dig(:project, :path_with_namespace)
@project_url = params.dig(:project, :web_url) || params[:project_url]
@user_full_name = params.dig(:user, :name) || params[:user_full_name]
@user_name = params.dig(:user, :username) || params[:user_name]
@user_avatar = params.dig(:user, :avatar_url) || params[:user_avatar]
end
def user_combined_name
if user_full_name.present?
"#{user_full_name} (#{user_name})"
else
user_name
end
end
def summary
return message if markdown
format(message)
end
def pretext
summary
end
def fallback
format(message)
end
def attachments
raise NotImplementedError
end
def activity
raise NotImplementedError
end
private
def message
raise NotImplementedError
end
def format(string)
::Slack::Messenger::Util::LinkFormatter.format(format_relative_links(string))
end
def format_relative_links(string)
string.gsub(RELATIVE_LINK_REGEX, "#{project_url}\\1")
end
# Remove unsafe markup from user input, which can be used to hijack links in our own markup,
# or insert new ones.
#
# This currently removes Markdown and Slack "mrkdwn" links (keeping the link label),
# and all HTML markup (keeping the text nodes).
# We can't just escape the markup characters, because each chat app handles this differently.
#
# See:
# - https://api.slack.com/reference/surfaces/formatting#escaping
# - https://gitlab.com/gitlab-org/slack-notifier#escaping
def strip_markup(string)
string&.delete(UNSAFE_MARKUP_CHARACTERS)
end
def attachment_color
'#345'
end
def link(text, url)
"[#{strip_markup(text)}](#{url})"
end
def pretty_duration(seconds)
parse_string =
if duration < 1.hour
'%M:%S'
else
'%H:%M:%S'
end
Time.at(seconds).utc.strftime(parse_string)
end
end
end
end
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