[refactor] drop pcre regexes for lua patterns

kong-0.2.1-1.rockspec

@@ -12,20 +12,22 @@ description = {
 }
 dependencies = {
   "lua ~> 5.1",
+  "luasec ~> 0.5-2",
 
   "uuid ~> 0.2-1",
   "luatz ~> 0.3-1",
   "yaml ~> 1.1.1-1",
-  "luasec ~> 0.5-2",
   "lapis ~> 1.1.0-1",
   "stringy ~> 0.4-1",
   "cassandra ~> 0.5-7",
+  "multipart ~> 0.1-2",
   "lua-path ~> 0.2.3-1",
   "lua-cjson ~> 2.1.0-1",
-  "luasocket ~> 2.0.2-5",
   "ansicolors ~> 1.0.2-3",
+
+  "luasocket ~> 2.0.2-5",
   "lrexlib-pcre ~> 2.7.2-1",
-  "multipart ~> 0.1-2"
+  "lua-llthreads2 ~> 0.1.3-1"
 }
 build = {
   type = "builtin",

kong/dao/cassandra/base_dao.lua

@@ -14,7 +14,6 @@ local stringy = require "stringy"
 local Object = require "classic"
 local utils = require "kong.tools.utils"
 local uuid = require "uuid"
-local rex = require "rex_pcre"
 
 local cassandra_constants = require "cassandra.constants"
 local error_types = constants.DATABASE_ERROR_TYPES
@@ -183,9 +182,10 @@ function BaseDao:_close_session(session)
   end
 end
 
-local pattern = "^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$"
+local digit = "[0-9a-f]"
+local uuid_pattern = "^"..table.concat({ digit:rep(8), digit:rep(4), digit:rep(4), digit:rep(4), digit:rep(12) }, '%-').."$"
 local function is_valid_uuid(uuid)
-  return rex.match(uuid, pattern) ~= nil
+  return uuid and uuid:match(uuid_pattern) ~= nil
 end
 
 -- Build the array of arguments to pass to lua-resty-cassandra :execute method.

kong/dao/schemas.lua

@@ -1,4 +1,3 @@
-local rex = require "rex_pcre"
 local utils = require "kong.tools.utils"
 local constants = require "kong.constants"
 
@@ -69,7 +68,7 @@ function _M.validate(t, schema, is_update)
 
     -- Check field against a regex if specified
     elseif t[column] ~= nil and v.regex then
-      if not rex.match(t[column], v.regex) then
+      if not ngx.re.match(t[column], v.regex) then
         errors = utils.add_error(errors, column, column.." has an invalid value")
       end
 
@@ -109,7 +108,7 @@ function _M.validate(t, schema, is_update)
   end
 
   -- Check for unexpected fields in the entity
-  for k,v in pairs(t) do
+  for k, v in pairs(t) do
     if schema[k] == nil then
       errors = utils.add_error(errors, k, k.." is an unknown field")
     end

kong/tools/faker.lua

@@ -29,9 +29,9 @@ Faker.FIXTURES = {
     { name = "API TESTS 3", public_dns = "test3.com", target_url = "http://mockbin.com" },
     { name = "API TESTS 4", public_dns = "test4.com", target_url = "http://mockbin.com" },
     { name = "API TESTS 5", public_dns = "test5.com", target_url = "http://mockbin.com" },
-
     { name = "API TESTS 6", public_dns = "cors1.com", target_url = "http://mockbin.com" },
     { name = "API TESTS 7", public_dns = "cors2.com", target_url = "http://mockbin.com" },
+    { name = "API TESTS 8 (logging)", public_dns = "logging.com", target_url = "http://mockbin.com" },
 
     { name = "API TESTS 8 (dns)", public_dns = "dns1.com", target_url = "http://127.0.0.1:7771" },
     { name = "API TESTS 9 (dns)", public_dns = "dns2.com", target_url = "http://localhost:7771" },
@@ -53,9 +53,6 @@ Faker.FIXTURES = {
   plugin_configuration = {
     -- API 1
     { name = "keyauth", value = { key_names = { "apikey" }}, __api = 1 },
-    { name = "tcplog", value = { host = "127.0.0.1", port = 7777 }, __api = 1 },
-    { name = "udplog", value = { host = "127.0.0.1", port = 8888 }, __api = 1 },
-    { name = "filelog", value = {}, __api = 1 },
     -- API 2
     { name = "basicauth", value = {}, __api = 2 },
     -- API 3
@@ -80,7 +77,11 @@ Faker.FIXTURES = {
                                headers = "origin, type, accepts",
                                exposed_headers = "x-auth-token",
                                max_age = 23,
-                               credentials = true }, __api = 7 }
+                               credentials = true }, __api = 7 },
+    -- API 8
+    { name = "tcplog", value = { host = "127.0.0.1", port = 7777 }, __api = 8 },
+    { name = "udplog", value = { host = "127.0.0.1", port = 8888 }, __api = 8 },
+    { name = "filelog", value = {}, __api = 8 },
   }
 }
 

kong/tools/http_client.lua

@@ -5,44 +5,6 @@ local cjson = require "cjson"
 
 local _M = {}
 
--- Builds a querystring from a table, separated by `&`
--- @param tab The key/value parameters
--- @param key The parent key if the value is multi-dimensional (optional)
--- @return a string representing the built querystring
-local function build_query(tab, key)
-  if ngx then
-    return ngx.encode_args(tab)
-  else
-    local query = {}
-    local keys = {}
-
-    for k in pairs(tab) do
-      keys[#keys+1] = k
-    end
-
-    table.sort(keys)
-
-    for _,name in ipairs(keys) do
-      local value = tab[name]
-      if key then
-        name = string.format("%s[%s]", tostring(key), tostring(name))
-      end
-      if type(value) == "table" then
-        query[#query+1] = build_query(value, name)
-      else
-        value = tostring(value)
-        if value ~= "" then
-          query[#query+1] = string.format("%s=%s", name, value)
-        else
-          query[#query+1] = name
-        end
-      end
-    end
-
-    return table.concat(query, "&")
-  end
-end
-
 local function http_call(options)
   -- Set Host header accordingly
   if not options.headers["host"] then
@@ -67,7 +29,7 @@ function _M.get(url, querystring, headers)
   if not headers then headers = {} end
 
   if querystring then
-    url = string.format("%s?%s", url, build_query(querystring))
+    url = string.format("%s?%s", url, ngx.encode_args(querystring))
   end
 
   return http_call {
@@ -82,7 +44,7 @@ function _M.post(url, form, headers)
   if not headers then headers = {} end
   if not form then form = {} end
 
-  local body = build_query(form)
+  local body = ngx.encode_args(form)
   headers["content-length"] = string.len(body)
   if not headers["content-type"] then
     headers["content-type"] = "application/x-www-form-urlencoded"
@@ -148,7 +110,7 @@ function _M.delete(url, querystring, headers)
   if not headers then headers = {} end
 
   if querystring then
-    url = string.format("%s?%s", url, build_query(querystring))
+    url = string.format("%s?%s", url, ngx.encode_args(querystring))
   end
 
   return http_call {
@@ -163,7 +125,7 @@ function _M.options(url, querystring, headers)
   if not headers then headers = {} end
 
   if querystring then
-    url = string.format("%s?%s", url, build_query(querystring))
+    url = string.format("%s?%s", url, ngx.encode_args(querystring))
   end
 
   return http_call {
@@ -173,4 +135,4 @@ function _M.options(url, querystring, headers)
   }
 end
 
-return _M
+return _M

kong/tools/io.lua

@@ -1,7 +1,7 @@
-local constants = require "kong.constants"
-local path = require("path").new("/")
 local yaml = require "yaml"
+local path = require("path").new("/")
 local stringy = require "stringy"
+local constants = require "kong.constants"
 
 local _M = {}
 

spec/integration/proxy/realip_spec.lua

@@ -5,7 +5,6 @@ local yaml = require "yaml"
 local IO = require "kong.tools.io"
 local stringy = require "stringy"
 local uuid = require "uuid"
-local rex = require "rex_pcre"
 
 -- This is important to seed the UUID generator
 uuid.seed()
@@ -29,10 +28,16 @@ describe("Real IP", function()
     local uuid,_ = string.gsub(uuid(), "-", "")
 
     -- Making the request
-    local response, status, headers = http_client.get(STUB_GET_URL, {apikey = "apikey123"}, {host = "test1.com", ["X-Forwarded-For"] = "4.4.4.4, 1.1.1.1, 5.5.5.5", file_log_uuid = uuid})
+    local response, status = http_client.get(STUB_GET_URL, nil,
+      {
+        host = "logging.com",
+        ["X-Forwarded-For"] = "4.4.4.4, 1.1.1.1, 5.5.5.5",
+        file_log_uuid = uuid
+      }
+    )
     assert.are.equal(200, status)
 
-    -- Reading the log file and finding the entry
+    -- Reading the log file and finding the line with the entry
     local configuration = yaml.load(IO.read_file(TEST_CONF))
     assert.truthy(configuration)
     local error_log = IO.read_file(configuration.nginx_working_dir.."/logs/error.log")
@@ -46,18 +51,11 @@ describe("Real IP", function()
     end
     assert.truthy(line)
 
-    -- Matching the Json
-    local iterator, iter_err = rex.gmatch(line, "\\s+({.+})\\s+")
-    if not iterator then
-      error(iter_err)
-    end
-    local m, err = iterator()
-    if err then
-      error(err)
-    end
-    assert.truthy(m)
+    -- Retrieve the JSON part of the line
+    local json_str = line:match("(%{.*%})")
+    assert.truthy(json_str)
 
-    local log_message = cjson.decode(m)
+    local log_message = cjson.decode(json_str)
     assert.are.same("4.4.4.4", log_message.ip)
     assert.are.same(uuid, log_message.request.headers.file_log_uuid)
   end)

spec/ngx_stub.lua

@@ -0,0 +1,41 @@
+local reg = require "rex_pcre"
+
+_G.ngx = {
+  time = function() return os.time() end, -- cassandra.lua
+  re = {
+    match = reg.match
+  },
+  -- Builds a querystring from a table, separated by `&`
+  -- @param tab The key/value parameters
+  -- @param key The parent key if the value is multi-dimensional (optional)
+  -- @return a string representing the built querystring
+  encode_args = function(tab, key)
+    local query = {}
+    local keys = {}
+
+    for k in pairs(tab) do
+      keys[#keys+1] = k
+    end
+
+    table.sort(keys)
+
+    for _, name in ipairs(keys) do
+      local value = tab[name]
+      if key then
+        name = string.format("%s[%s]", tostring(key), tostring(name))
+      end
+      if type(value) == "table" then
+        query[#query+1] = build_query(value, name)
+      else
+        value = tostring(value)
+        if value ~= "" then
+          query[#query+1] = string.format("%s=%s", name, value)
+        else
+          query[#query+1] = name
+        end
+      end
+    end
+
+    return table.concat(query, "&")
+  end
+}

spec/plugins/logging_spec.lua

@@ -6,7 +6,6 @@ local yaml = require "yaml"
 local IO = require "kong.tools.io"
 local uuid = require "uuid"
 local stringy = require "stringy"
-local rex = require "rex_pcre"
 
 -- This is important to seed the UUID generator
 uuid.seed()
@@ -64,7 +63,7 @@ describe("Logging Plugins", function()
       local thread = start_tcp_server() -- Starting the mock TCP server
 
       -- Making the request
-      local response, status, headers = http_client.get(STUB_GET_URL, {apikey = "apikey123"}, {host = "test1.com"})
+      local response, status, headers = http_client.get(STUB_GET_URL, nil, { host = "logging.com" })
       assert.are.equal(200, status)
 
       -- Getting back the TCP server input
@@ -81,7 +80,7 @@ describe("Logging Plugins", function()
       local thread = start_udp_server() -- Starting the mock TCP server
 
       -- Making the request
-      local response, status, headers = http_client.get(STUB_GET_URL, {apikey = "apikey123"}, {host = "test1.com"})
+      local response, status = http_client.get(STUB_GET_URL, nil, { host = "logging.com" })
       assert.are.equal(200, status)
 
       -- Getting back the TCP server input
@@ -95,13 +94,15 @@ describe("Logging Plugins", function()
     end)
 
     it("should log to file", function()
-      local uuid,_ = string.gsub(uuid(), "-", "")
+      local uuid = string.gsub(uuid(), "-", "")
 
       -- Making the request
-      local response, status, headers = http_client.get(STUB_GET_URL, {apikey = "apikey123"}, {host = "test1.com", file_log_uuid = uuid})
+      local response, status = http_client.get(STUB_GET_URL, nil,
+        { host = "logging.com", file_log_uuid = uuid }
+      )
       assert.are.equal(200, status)
 
-      -- Reading the log file and finding the entry
+      -- Reading the log file and finding the line with the entry
       local configuration = yaml.load(IO.read_file(TEST_CONF))
       assert.truthy(configuration)
       local error_log = IO.read_file(configuration.nginx_working_dir.."/logs/error.log")
@@ -115,22 +116,14 @@ describe("Logging Plugins", function()
       end
       assert.truthy(line)
 
-      -- Matching the Json
-      local iterator, iter_err = rex.gmatch(line, "\\s+({.+})\\s+")
-      if not iterator then
-        error(iter_err)
-      end
-      local m, err = iterator()
-      if err then
-        error(err)
-      end
-      assert.truthy(m)
+      -- Retrieve the JSON part of the line
+      local json_str = line:match("(%{.*%})")
+      assert.truthy(json_str)
 
-      local log_message = cjson.decode(m)
+      local log_message = cjson.decode(json_str)
       assert.are.same("127.0.0.1", log_message.ip)
       assert.are.same(uuid, log_message.request.headers.file_log_uuid)
     end)
 
   end)
-
 end)

spec/spec_helpers.lua

@@ -13,6 +13,8 @@ local TEST_CONF_FILE = "kong_TEST.yml"
 local TEST_PROXY_URL = "http://localhost:8100"
 local TEST_API_URL = "http://localhost:8101"
 
+require "spec.ngx_stub"
+
 local _M = {}
 
 _M.API_URL = TEST_API_URL

spec/unit/schemas_spec.lua

@@ -2,6 +2,8 @@ local schemas = require "kong.dao.schemas"
 local constants = require "kong.constants"
 local validate = schemas.validate
 
+require "spec.ngx_stub"
+
 describe("Schemas", function()
 
   it("should alias lua types to database types", function()

spec/unit/statics_spec.lua

@@ -31,7 +31,7 @@ describe("Static files", function()
 
   describe("Configuration", function()
 
-    it("should parse a correct configuration", function()
+    it("should equal to this template to make sure no errors are pushed in the default config", function()
       local configuration = IO.read_file(spec_helper.DEFAULT_CONF_FILE)
 
       assert.are.same([[