# frozen_string_literal: true
require "yaml"
require "tree"
require_relative "skeksis/version"
require_relative "skeksis/parser"
require_relative "skeksis/htmlize"
module Skeksis
#class Error < StandardError; end
Header = <<~HTML
Gembridge
Directory Listing
HTML
Footer = <<~HTML
HTML
class GemBridge
def initialize
config = YAML.load(File.read("config.yml"))
@gemini_uri = config['skeksis_config']['gemini_uri']
@serve_dir = config['skeksis_config']['serve_dir']
@allowlist = Tree::TreeNode.new("ROOT", false)
build_allowlist(@allowlist, @serve_dir)
puts @allowlist.to_h
end
def build_allowlist(tree, path)
Dir.each_child(path) do |child|
full_path = Pathname.new(path).join(child)
if child == ".serve_ok"
tree.content = true
end
serve_ok = false
if Dir.exist?(full_path)
Dir.each_child(full_path) do |subchild|
if subchild == ".serve_ok"
serve_ok = true
end
end
child_node = Tree::TreeNode.new(child, serve_ok)
tree << child_node
end
end
end
def query(path, env)
query_path = Pathname.new(path).each_filename.to_a
@allowlist.children do |child|
if child.name == query_path[0] and child.content == false
return nil
end
end
# Chomps the first / and builds path
full_path = Pathname.new(@serve_dir) + path[1..-1]
puts full_path.to_s
if Dir.exist?(full_path)
index_file = full_path + "index.gmi"
if File.exist?(index_file)
data = File.open(index_file, 'r').readlines
[htmlize(data, env)]
else
create_dir_listing(full_path, env)
end
elsif File.exist?(full_path)
file = File.open(full_path, 'r')
data = file.readlines
[htmlize(data, env)]
else # path is invalid
return nil
end
end
def htmlize(data, env)
Skeksis::Parser.parse(data, strip_blanks=true).htmlize(env['REQUEST_URI'], @gemini_uri)
end
private
def load_style
""
end
def create_dir_listing(path, env)
http = URI.parse(env['REQUEST_URI'])
unless Dir.each_child(path).include?('.directory-listing-ok')
return nil
end
listing = Dir.each_child(path).map do |i|
if i == ".directory-listing-ok" or i == ".serve_ok"
next
end
child_path = Pathname.new(path).join(i)
puts child_path
if Dir.exist?(child_path) and not Dir.each_child(child_path).include?('.serve_ok')
next
end
uri_path = Pathname.new(env['PATH_INFO']).join(i)
uri = URI::HTTP.build(host: http.host, port: http.port, path: uri_path.to_s)
"#{i}
"
end.join("\n")
[Header + listing + Footer]
end
end
end