rspamd/test/lua/unit/url.lua

-- URL parser tests

context("URL check functions", function()
  local mpool = require("rspamd_mempool")
  local lua_urls_compose = require "lua_urls_compose"
  local url = require("rspamd_url")
  local lua_util = require("lua_util")
  local logger = require("rspamd_logger")
  local test_helper = require("rspamd_test_helper")
  local ffi = require("ffi")

  ffi.cdef [[
  void rspamd_normalize_path_inplace(char *path, size_t len, size_t *nlen);
  ]]

  test_helper.init_url_parser()

  local pool = mpool.create()

  local cases = {
    { "test.com", { "test.com", nil } },
    { " test.com", { "test.com", nil } },
    { "<test.com> text", { "test.com", nil } },
    { "test.com. text", { "test.com", nil } },
    { "mailto:A.User@example.com text", { "example.com", "A.User" } },
    { "http://Тест.Рф:18 text", { "тест.рф", nil } },
    { "http://user:password@тест2.РФ:18 text", { "тест2.рф", "user" } },
    { "somebody@example.com", { "example.com", "somebody" } },
    { "https://127.0.0.1/abc text", { "127.0.0.1", nil } },
    { "https:\\\\127.0.0.1/abc text", { "127.0.0.1", nil } },
    { "https:\\\\127.0.0.1", { "127.0.0.1", nil } },
    { "https://127.0.0.1 text", { "127.0.0.1", nil } },
    { "https://[::1]:1", { "::1", nil } },
    { "https://user:password@[::1]:1", { "::1", nil } },
    { "https://user:password@[::1]", { "::1", nil } },
    { "https://user:password@[::1]/1", { "::1", nil } },
  }

  for i, c in ipairs(cases) do
    local res = url.create(pool, c[1])

    test("Extract urls from text" .. i, function()
      assert_not_nil(res, "cannot parse " .. c[1])
      local t = res:to_table()
      --local s = logger.slog("%1 -> %2", c[1], t)
      --print(s)
      assert_not_nil(t, "cannot convert to table " .. c[1])
      assert_equal(c[2][1], t['host'],
          logger.slog('expected host "%s", but got "%s" in url %s => %s',
              c[2][1], t['host'], c[1], t))

      if c[2][2] then
        assert_equal(c[2][1], t['host'],
            logger.slog('expected user "%s", but got "%s" in url %s => %s',
                c[2][1], t['host'], c[1], t))
      end
    end)
  end

  cases = {
    { [[http://example.net/path/]], true, {
      host = 'example.net', path = 'path/'
    } },
    { 'http://example.net/hello%20world.php?arg=x#fragment', true, {
      host = 'example.net', fragment = 'fragment', query = 'arg=x',
      path = 'hello world.php',
    } },
    { 'http://example.net/?arg=%23#fragment', true, {
      host = 'example.net', fragment = 'fragment', query = 'arg=#',
    } },
    { "http:/\\[::eeee:192.168.0.1]/#test", true, {
      host = '::eeee:c0a8:1', fragment = 'test'
    } },
    { "http:/\\[::eeee:192.168.0.1]#test", true, {
      host = '::eeee:c0a8:1', fragment = 'test'
    } },
    { "http:/\\[::eeee:192.168.0.1]?test", true, {
      host = '::eeee:c0a8:1', query = 'test'
    } },
    { "http:\\\\%30%78%63%30%2e%30%32%35%30.01", true, { --0xc0.0250.01
      host = '192.168.0.1',
    } },
    { "http:/\\www.google.com/foo?bar=baz#", true, {
      host = 'www.google.com', path = 'foo', query = 'bar=baz', tld = 'google.com'
    } },
    { "http://[www.google.com]/", true, {
      host = 'www.google.com',
    } },
    { "<test.com", true, {
      host = 'test.com', tld = 'test.com',
    } },
    { "test.com>", false },
    { ",test.com text", false },
    { "ht\ttp:@www.google.com:80/;p?#", false },
    { "http://user:pass@/", false },
    { "http://foo:-80/", false },
    { "http:////////user:@google.com:99?foo", true, {
      host = 'google.com', user = 'user', port = 99, query = 'foo'
    } },
    { "http://%25DOMAIN:foobar@foodomain.com/", true, {
      host = 'foodomain.com', user = '%25DOMAIN'
    } },
    { "http://0.0xFFFFFF", true, {
      host = '0.255.255.255'
    } },
    --{"http:/\\030052000001", true, {
    --  host = '192.168.0.1'
    --}},
    { "http:\\/0xc0.052000001", true, {
      host = '192.168.0.1'
    } },
    { "http://192.168.0.1.?foo", true, {
      host = '192.168.0.1', query = 'foo',
    } },
    { "http://twitter.com#test", true, {
      host = 'twitter.com', fragment = 'test'
    } },
    { "http:www.twitter.com#test", true, {
      host = 'www.twitter.com', fragment = 'test'
    } },
    { "http://example。com#test", true, {
      host = 'example.com', fragment = 'test'
    } },
    { "http://hoho.example。com#test", true, {
      host = 'hoho.example.com', fragment = 'test'
    } },
    { "http://hoho。example。com#test", true, {
      host = 'hoho.example.com', fragment = 'test'
    } },
    { "http://hoho．example。com#test", true, {
      host = 'hoho.example.com', fragment = 'test'
    } },
    { "http://hehe｡example。com#test", true, {
      host = 'hehe.example.com', fragment = 'test'
    } },
    { "http:////$%^&****((@example.org//#f@f", true, {
      user = '$%^&****((', host = 'example.org', fragment = 'f@f'
    } },
    { "http://@@example.com", true, {
      user = "@", host = "example.com"
    } },
    { "https://example.com\\_Resources\\ClientImages\\UserData?ol\\o#ololo\\", true, {
      host = "example.com", path = "_Resources\\ClientImages\\UserData",
      query = "ol\\o", fragment = "ololo\\",
    } },
    {
      "http://0x3f8f29a4/pro/au.html", true, {
      host = "63.143.41.164",
      path = "pro/au.html",
    } },
    {
      "http://localhost", true, {
      host = "localhost",
      tld = "localhost",
    } },
    {
      "http://localhost.", true, {
      host = "localhost.",
      tld = "localhost",
    } },
  }

  -- Some cases from https://code.google.com/p/google-url/source/browse/trunk/src/url_canon_unittest.cc
  for i, c in ipairs(cases) do
    local res = url.create(pool, c[1])

    test("Parse url: " .. c[1], function()
      if c[2] then
        assert_not_nil(res, "we are able to parse url: " .. c[1])

        local uf = res:to_table()

        for k, v in pairs(c[3]) do
          assert_not_nil(uf[k], k .. ' is missing in url, must be ' .. v)
          assert_equal(uf[k], v, logger.slog('expected " %s ", for %s, but got " %s " in url %s => %s',
              v, k, uf[k], c[1], uf))
        end
        for k, v in pairs(uf) do
          if k ~= 'url' and k ~= 'protocol' and k ~= 'tld' then
            assert_not_nil(c[3][k], k .. ' should be absent but it is ' .. v .. ' in: ' .. c[1])
          end
        end
      else
        assert_nil(res, "should not parse " .. c[1] .. ' parsed to: ' .. tostring(res))
      end
    end)
  end

  cases = {
    { "/././foo", "/foo" },
    { "/a/b/c/./../../g", "/a/g" },
    { "/./.foo", "/.foo" },
    { "/foo/.", "/foo/" },
    { "/foo/./", "/foo/" },
    { "/foo/bar/..", "/foo" },
    { "/foo/bar/../", "/foo/" },
    { "/foo/..bar", "/foo/..bar" },
    { "/foo/bar/../ton", "/foo/ton" },
    { "/foo/bar/../ton/../../a", "/a" },
    { "/foo/../../..", "/" },
    { "/foo/../../../ton", "/ton" },
    { "////../..", "/" },
    { "./", "" },
    { "/./", "/" },
    { "/./././././././", "/" },
    { "/", "/" },
    { "/a/b", "/a/b" },
    { "/a/b/", "/a/b/" },
    { "..", "/" },
    { "/../", "/" },
    { "../", "/" },
    { "///foo", "/foo" },
  }

  for i, v in ipairs(cases) do
    test(string.format("Normalize paths '%s'", v[1]), function()
      local buf = ffi.new("uint8_t[?]", #v[1])
      local sizbuf = ffi.new("size_t[1]")
      ffi.copy(buf, v[1], #v[1])
      ffi.C.rspamd_normalize_path_inplace(buf, #v[1], sizbuf)
      local res = ffi.string(buf, tonumber(sizbuf[0]))
      assert_equal(v[2], res, 'expected ' .. v[2] .. ' but got ' .. res .. ' in path ' .. v[1])
    end)
  end

  cases = {
    { 'example.com', 'example.com' },
    { 'baz.example.com', 'baz.example.com' },
    { '3.baz.example.com', 'baz.example.com' },
    { 'bar.example.com', 'example.com' },
    { 'foo.example.com', 'foo.example.com' },
    { '3.foo.example.com', '3.foo.example.com' },
    { 'foo.com', 'foo.com' },
    { 'bar.foo.com', 'foo.com' },
  }

  local excl_rules1 = {
    'example.com',
    '*.foo.example.com',
    '!bar.example.com'
  }

  local comp_rules = lua_urls_compose.inject_composition_rules(rspamd_config, excl_rules1)

  for _, v in ipairs(cases) do
    test("URL composition " .. v[1], function()
      local u = url.create(pool, v[1])
      assert_not_nil(u, "we are able to parse url:" .. v[1])
      local res = comp_rules:process_url(nil, u:get_tld(), u:get_host())
      assert_equal(v[2], res, 'expected ' .. v[2] .. ' but got ' .. res .. ' in url ' .. v[1])
    end)
  end
end)