function check_path_prefix_match()

in pluginats/connect_redis.lua [43:88]

• 38 lines of code
• 8 McCabe index (conditional complexity)

function check_path_prefix_match(req_scheme, req_host, req_path)
  local host_path = "P+"..req_scheme .. "://" .. req_host .. req_path
  ts.debug('checking host_path: '..host_path)
  client:select(1)
  local svcs = client:smembers(host_path) 

  if (svcs ~= nil and #svcs > 0) then
    return svcs
  end

  
  local t = {}                   
  local i = 0
  while true do
    i = string.find(req_path, "%/", i+1)    
    if i == nil then break end
    table.insert(t, i)
  end

  for index = #t, 1, -1 do
    local pathindex = t[index]
    local subpath = string.sub (req_path, 1, pathindex)

    host_path = "P+"..req_scheme .. "://" .. req_host .. subpath
    ts.debug('checking host_path: '..host_path)
    client:select(1)
    svcs =client:smembers(host_path) 
    if (svcs ~= nil and #svcs > 0) then
      return svcs
    end

    if pathindex > 1 then
      subpath = string.sub (req_path, 1, pathindex - 1)

      host_path = "P+"..req_scheme .. "://" .. req_host .. subpath
      ts.debug('checking host_path: '..host_path)
      client:select(1)
      svcs = client:smembers(host_path) 
      if (svcs ~= nil and #svcs > 0) then
        return svcs
      end
    end
  end

  return nil
end