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main.go
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package main
import (
"crypto/tls"
"fmt"
"html/template"
"io/ioutil"
"log/syslog"
"net"
"net/http"
pprof_http "net/http/pprof"
"os"
"path/filepath"
"runtime/pprof"
"strconv"
"strings"
"sync"
"time"
"github.com/Sirupsen/logrus"
logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog"
"github.com/bshuster-repo/logrus-logstash-hook"
"github.com/docopt/docopt.go"
"github.com/evalphobia/logrus_sentry"
"github.com/facebookgo/pidfile"
"github.com/gemnasium/logrus-graylog-hook"
"github.com/gorilla/mux"
"github.com/justinas/alice"
"github.com/lonelycode/gorpc"
"github.com/lonelycode/osin"
"github.com/rs/cors"
uuid "github.com/satori/go.uuid"
"rsc.io/letsencrypt"
"github.com/TykTechnologies/goagain"
"github.com/TykTechnologies/tyk/apidef"
"github.com/TykTechnologies/tyk/config"
logger "github.com/TykTechnologies/tyk/log"
)
var (
log = logger.Get()
globalConf config.Config
templates *template.Template
analytics RedisAnalyticsHandler
GlobalEventsJSVM JSVM
memProfFile *os.File
MainNotifier RedisNotifier
DefaultOrgStore DefaultSessionManager
DefaultQuotaStore DefaultSessionManager
FallbackKeySesionManager = SessionHandler(&DefaultSessionManager{})
MonitoringHandler config.TykEventHandler
RPCListener RPCStorageHandler
DashService DashboardServiceSender
apisMu sync.RWMutex
apisByID = map[string]*APISpec{}
keyGen DefaultKeyGenerator
policiesMu sync.RWMutex
policiesByID = map[string]Policy{}
mainRouter *mux.Router
defaultRouter *mux.Router
controlRouter *mux.Router
LE_MANAGER letsencrypt.Manager
LE_FIRSTRUN bool
NodeID string
runningTests = false
// confPaths is the series of paths to try to use as config files. The
// first one to exist will be used. If none exists, a default config
// will be written to the first path in the list.
//
// When --conf=foo is used, this will be replaced by []string{"foo"}.
confPaths = []string{
"tyk.conf",
// TODO: add ~/.config/tyk/tyk.conf here?
"/etc/tyk/tyk.conf",
}
)
func getApiSpec(apiID string) *APISpec {
apisMu.RLock()
spec := apisByID[apiID]
apisMu.RUnlock()
return spec
}
// Display configuration options
func displayConfig() {
address := globalConf.ListenAddress
if globalConf.ListenAddress == "" {
address = "(open interface)"
}
log.WithFields(logrus.Fields{
"prefix": "main",
}).Info("--> Listening on address: ", address)
log.WithFields(logrus.Fields{
"prefix": "main",
}).Info("--> Listening on port: ", globalConf.ListenPort)
log.WithFields(logrus.Fields{
"prefix": "main",
}).Info("--> PID: ", HostDetails.PID)
}
func pingTest(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "Hello Tiki")
}
// Create all globals and init connection handlers
func setupGlobals() {
mainRouter = mux.NewRouter()
defaultRouter = mainRouter
controlRouter = mux.NewRouter()
if globalConf.EnableAnalytics && globalConf.Storage.Type != "redis" {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Panic("Analytics requires Redis Storage backend, please enable Redis in the tyk.conf file.")
}
// Initialise our Host Checker
healthCheckStore := &RedisClusterStorageManager{KeyPrefix: "host-checker:"}
InitHostCheckManager(healthCheckStore)
if globalConf.EnableAnalytics && analytics.Store == nil {
globalConf.LoadIgnoredIPs()
analyticsStore := RedisClusterStorageManager{KeyPrefix: "analytics-"}
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Setting up analytics DB connection")
analytics.Store = &analyticsStore
analytics.Init()
if globalConf.AnalyticsConfig.Type == "rpc" {
log.Debug("Using RPC cache purge")
purger := RPCPurger{Store: &analyticsStore}
purger.Connect()
analytics.Clean = &purger
go analytics.Clean.PurgeLoop(10 * time.Second)
}
}
// Load all the files that have the "error" prefix.
templatesDir := filepath.Join(globalConf.TemplatePath, "error*")
templates = template.Must(template.ParseGlob(templatesDir))
// Set up global JSVM
if globalConf.EnableJSVM {
GlobalEventsJSVM.Init()
}
if globalConf.CoProcessOptions.EnableCoProcess {
CoProcessInit()
}
// Get the notifier ready
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Notifier will not work in hybrid mode")
mainNotifierStore := RedisClusterStorageManager{}
mainNotifierStore.Connect()
MainNotifier = RedisNotifier{&mainNotifierStore, RedisPubSubChannel}
if globalConf.Monitor.EnableTriggerMonitors {
h := &WebHookHandler{}
if err := h.Init(globalConf.Monitor.Config); err != nil {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Error("Failed to initialise monitor! ", err)
} else {
MonitoringHandler = h
}
}
if globalConf.AnalyticsConfig.NormaliseUrls.Enabled {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Info("Setting up analytics normaliser")
globalConf.AnalyticsConfig.NormaliseUrls.CompiledPatternSet = initNormalisationPatterns()
}
}
func buildConnStr(resource string) string {
if globalConf.DBAppConfOptions.ConnectionString == "" && globalConf.DisableDashboardZeroConf {
log.Fatal("Connection string is empty, failing.")
return ""
}
if !globalConf.DisableDashboardZeroConf && globalConf.DBAppConfOptions.ConnectionString == "" {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Info("Waiting for zeroconf signal...")
for globalConf.DBAppConfOptions.ConnectionString == "" {
time.Sleep(1 * time.Second)
}
}
connStr := globalConf.DBAppConfOptions.ConnectionString
connStr = connStr + resource
return connStr
}
func getAPISpecs() []*APISpec {
loader := APIDefinitionLoader{}
var apiSpecs []*APISpec
if globalConf.UseDBAppConfigs {
connStr := buildConnStr("/system/apis")
apiSpecs = loader.FromDashboardService(connStr, globalConf.NodeSecret)
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Downloading API Configurations from Dashboard Service")
} else if globalConf.SlaveOptions.UseRPC {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Using RPC Configuration")
apiSpecs = loader.FromRPC(globalConf.SlaveOptions.RPCKey)
} else {
apiSpecs = loader.FromDir(globalConf.AppPath)
}
log.WithFields(logrus.Fields{
"prefix": "main",
}).Printf("Detected %v APIs", len(apiSpecs))
if globalConf.AuthOverride.ForceAuthProvider {
for i := range apiSpecs {
apiSpecs[i].AuthProvider = globalConf.AuthOverride.AuthProvider
}
}
if globalConf.AuthOverride.ForceSessionProvider {
for i := range apiSpecs {
apiSpecs[i].SessionProvider = globalConf.AuthOverride.SessionProvider
}
}
return apiSpecs
}
func getPolicies() {
pols := make(map[string]Policy)
log.WithFields(logrus.Fields{
"prefix": "main",
}).Info("Loading policies")
switch globalConf.Policies.PolicySource {
case "service":
if globalConf.Policies.PolicyConnectionString != "" {
connStr := globalConf.Policies.PolicyConnectionString
connStr = connStr + "/system/policies"
log.WithFields(logrus.Fields{
"prefix": "main",
}).Info("Using Policies from Dashboard Service")
pols = LoadPoliciesFromDashboard(connStr, globalConf.NodeSecret, globalConf.Policies.AllowExplicitPolicyID)
} else {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Fatal("No connection string or node ID present. Failing.")
}
case "rpc":
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Using Policies from RPC")
pols = LoadPoliciesFromRPC(globalConf.SlaveOptions.RPCKey)
default:
// this is the only case now where we need a policy record name
if globalConf.Policies.PolicyRecordName == "" {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("No policy record name defined, skipping...")
return
}
pols = LoadPoliciesFromFile(globalConf.Policies.PolicyRecordName)
}
if len(pols) > 0 {
policiesMu.Lock()
policiesByID = pols
policiesMu.Unlock()
}
}
// Set up default Tyk control API endpoints - these are global, so need to be added first
func loadAPIEndpoints(muxer *mux.Router) {
hostname := globalConf.HostName
if globalConf.ControlAPIHostname != "" {
hostname = globalConf.ControlAPIHostname
}
r := mux.NewRouter()
muxer.PathPrefix("/tyk").Handler(http.StripPrefix("/tyk",
checkIsAPIOwner(InstrumentationMW(r)),
))
if hostname != "" {
r = r.Host(hostname).Subrouter()
log.WithFields(logrus.Fields{
"prefix": "main",
}).Info("Control API hostname set: ", hostname)
}
log.WithFields(logrus.Fields{
"prefix": "main",
}).Info("Initialising Tyk REST API Endpoints")
// set up main API handlers
r.HandleFunc("/reload/group{_:/?}", allowMethods(groupResetHandler, "GET"))
r.HandleFunc("/reload{_:/?}", allowMethods(resetHandler(nil), "GET"))
if !isRPCMode() {
r.HandleFunc("/org/keys/{keyName:[^/]*}", allowMethods(orgHandler, "POST", "PUT", "GET", "DELETE"))
r.HandleFunc("/keys/policy/{keyName}", allowMethods(policyUpdateHandler, "POST"))
r.HandleFunc("/keys/create{_:/?}", allowMethods(createKeyHandler, "POST"))
r.HandleFunc("/apis{_:/?}", allowMethods(apiHandler, "GET", "POST", "PUT", "DELETE"))
r.HandleFunc("/apis/{apiID}", allowMethods(apiHandler, "GET", "POST", "PUT", "DELETE"))
r.HandleFunc("/health{_:/?}", allowMethods(healthCheckhandler, "GET"))
r.HandleFunc("/oauth/clients/create{_:/?}", allowMethods(createOauthClient, "POST"))
r.HandleFunc("/oauth/refresh/{keyName}", allowMethods(invalidateOauthRefresh, "DELETE"))
r.HandleFunc("/cache/{apiID}{_:/?}", allowMethods(invalidateCacheHandler, "DELETE"))
} else {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Info("Node is slaved, REST API minimised")
}
r.HandleFunc("/keys/{keyName:[^/]*}", allowMethods(keyHandler, "POST", "PUT", "GET", "DELETE"))
r.HandleFunc("/oauth/clients/{apiID}", allowMethods(oAuthClientHandler, "GET", "DELETE"))
r.HandleFunc("/oauth/clients/{apiID}/{keyName:[^/]*}", allowMethods(oAuthClientHandler, "GET", "DELETE"))
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Loaded API Endpoints")
}
// checkIsAPIOwner will ensure that the accessor of the tyk API has the
// correct security credentials - this is a shared secret between the
// client and the owner and is set in the tyk.conf file. This should
// never be made public!
func checkIsAPIOwner(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
tykAuthKey := r.Header.Get("X-Tyk-Authorization")
if tykAuthKey != globalConf.Secret {
// Error
log.Warning("Attempted administrative access with invalid or missing key!")
doJSONWrite(w, 403, apiError("Forbidden"))
return
}
next.ServeHTTP(w, r)
})
}
func generateOAuthPrefix(apiID string) string {
return "oauth-data." + apiID + "."
}
// Create API-specific OAuth handlers and respective auth servers
func addOAuthHandlers(spec *APISpec, muxer *mux.Router) *OAuthManager {
apiAuthorizePath := spec.Proxy.ListenPath + "tyk/oauth/authorize-client{_:/?}"
clientAuthPath := spec.Proxy.ListenPath + "oauth/authorize{_:/?}"
clientAccessPath := spec.Proxy.ListenPath + "oauth/token{_:/?}"
serverConfig := osin.NewServerConfig()
serverConfig.ErrorStatusCode = 403
serverConfig.AllowedAccessTypes = spec.Oauth2Meta.AllowedAccessTypes
serverConfig.AllowedAuthorizeTypes = spec.Oauth2Meta.AllowedAuthorizeTypes
serverConfig.RedirectUriSeparator = globalConf.OauthRedirectUriSeparator
prefix := generateOAuthPrefix(spec.APIID)
storageManager := getGlobalStorageHandler(prefix, false)
storageManager.Connect()
osinStorage := &RedisOsinStorageInterface{storageManager, spec.SessionManager} //TODO: Needs storage manager from APISpec
osinServer := TykOsinNewServer(serverConfig, osinStorage)
oauthManager := OAuthManager{spec, osinServer}
oauthHandlers := OAuthHandlers{oauthManager}
muxer.Handle(apiAuthorizePath, checkIsAPIOwner(http.HandlerFunc(allowMethods(oauthHandlers.HandleGenerateAuthCodeData, "POST"))))
muxer.HandleFunc(clientAuthPath, allowMethods(oauthHandlers.HandleAuthorizePassthrough, "GET", "POST"))
muxer.HandleFunc(clientAccessPath, allowMethods(oauthHandlers.HandleAccessRequest, "GET", "POST"))
return &oauthManager
}
func addBatchEndpoint(spec *APISpec, muxer *mux.Router) {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Batch requests enabled for API")
apiBatchPath := spec.Proxy.ListenPath + "tyk/batch/"
batchHandler := BatchRequestHandler{API: spec}
muxer.HandleFunc(apiBatchPath, batchHandler.HandleBatchRequest)
}
func loadCustomMiddleware(referenceSpec *APISpec) ([]string, apidef.MiddlewareDefinition, []apidef.MiddlewareDefinition, []apidef.MiddlewareDefinition, []apidef.MiddlewareDefinition, apidef.MiddlewareDriver) {
mwPaths := []string{}
var mwAuthCheckFunc apidef.MiddlewareDefinition
mwPreFuncs := []apidef.MiddlewareDefinition{}
mwPostFuncs := []apidef.MiddlewareDefinition{}
mwPostKeyAuthFuncs := []apidef.MiddlewareDefinition{}
mwDriver := apidef.OttoDriver
// Set AuthCheck hook
if referenceSpec.CustomMiddleware.AuthCheck.Name != "" {
mwAuthCheckFunc = referenceSpec.CustomMiddleware.AuthCheck
if referenceSpec.CustomMiddleware.AuthCheck.Path != "" {
// Feed a JS file to Otto
mwPaths = append(mwPaths, referenceSpec.CustomMiddleware.AuthCheck.Path)
}
}
// Load from the configuration
for _, mwObj := range referenceSpec.CustomMiddleware.Pre {
mwPaths = append(mwPaths, mwObj.Path)
mwPreFuncs = append(mwPreFuncs, mwObj)
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Loading custom PRE-PROCESSOR middleware: ", mwObj.Name)
}
for _, mwObj := range referenceSpec.CustomMiddleware.Post {
mwPaths = append(mwPaths, mwObj.Path)
mwPostFuncs = append(mwPostFuncs, mwObj)
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Loading custom POST-PROCESSOR middleware: ", mwObj.Name)
}
// Load from folders
for _, folder := range [...]struct {
name string
single *apidef.MiddlewareDefinition
slice *[]apidef.MiddlewareDefinition
session bool
}{
{name: "pre", slice: &mwPreFuncs, session: true},
{name: "auth", single: &mwAuthCheckFunc},
{name: "post_auth", slice: &mwPostKeyAuthFuncs, session: true},
{name: "post", slice: &mwPostFuncs, session: true},
} {
dirPath := filepath.Join(globalConf.MiddlewarePath, referenceSpec.APIID, folder.name)
files, _ := ioutil.ReadDir(dirPath)
for _, f := range files {
if strings.Contains(f.Name(), ".js") {
filePath := filepath.Join(dirPath, f.Name())
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Loading file middleware from ", filePath)
mwObjName := strings.Split(f.Name(), ".")[0]
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("-- Middleware name ", mwObjName)
mwDef := apidef.MiddlewareDefinition{}
mwDef.Name = mwObjName
mwDef.Path = filePath
if folder.session {
mwDef.RequireSession = strings.Contains(mwObjName, "_with_session")
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("-- Middleware requires session: ", mwDef.RequireSession)
}
mwPaths = append(mwPaths, filePath)
if folder.single != nil {
*folder.single = mwDef
} else {
*folder.slice = append(*folder.slice, mwDef)
}
}
}
}
// Set middleware driver, defaults to OttoDriver
if referenceSpec.CustomMiddleware.Driver != "" {
mwDriver = referenceSpec.CustomMiddleware.Driver
}
// Load PostAuthCheck hooks
for _, mwObj := range referenceSpec.CustomMiddleware.PostKeyAuth {
if mwObj.Path != "" {
// Otto files are specified here
mwPaths = append(mwPaths, mwObj.Path)
}
mwPostKeyAuthFuncs = append(mwPostKeyAuthFuncs, mwObj)
}
return mwPaths, mwAuthCheckFunc, mwPreFuncs, mwPostFuncs, mwPostKeyAuthFuncs, mwDriver
}
func creeateResponseMiddlewareChain(referenceSpec *APISpec) {
// Create the response processors
responseChain := make([]TykResponseHandler, len(referenceSpec.ResponseProcessors))
for i, processorDetail := range referenceSpec.ResponseProcessors {
processor, err := GetResponseProcessorByName(processorDetail.Name)
if err != nil {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Error("Failed to load processor! ", err)
return
}
_ = processor.Init(processorDetail.Options, referenceSpec)
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Loading Response processor: ", processorDetail.Name)
responseChain[i] = processor
}
referenceSpec.ResponseChain = responseChain
if len(responseChain) > 0 {
referenceSpec.ResponseHandlersActive = true
}
}
func handleCORS(chain *[]alice.Constructor, spec *APISpec) {
if spec.CORS.Enable {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("CORS ENABLED")
c := cors.New(cors.Options{
AllowedOrigins: spec.CORS.AllowedOrigins,
AllowedMethods: spec.CORS.AllowedMethods,
AllowedHeaders: spec.CORS.AllowedHeaders,
ExposedHeaders: spec.CORS.ExposedHeaders,
AllowCredentials: spec.CORS.AllowCredentials,
MaxAge: spec.CORS.MaxAge,
OptionsPassthrough: spec.CORS.OptionsPassthrough,
Debug: spec.CORS.Debug,
})
*chain = append(*chain, c.Handler)
}
}
func isRPCMode() bool {
return globalConf.AuthOverride.ForceAuthProvider &&
globalConf.AuthOverride.AuthProvider.StorageEngine == RPCStorageEngine
}
type SortableAPISpecListByListen []*APISpec
func (s SortableAPISpecListByListen) Len() int {
return len(s)
}
func (s SortableAPISpecListByListen) Swap(i, j int) {
s[i], s[j] = s[j], s[i]
}
func (s SortableAPISpecListByListen) Less(i, j int) bool {
return len(s[i].Proxy.ListenPath) > len(s[j].Proxy.ListenPath)
}
type SortableAPISpecListByHost []*APISpec
func (s SortableAPISpecListByHost) Len() int {
return len(s)
}
func (s SortableAPISpecListByHost) Swap(i, j int) {
s[i], s[j] = s[j], s[i]
}
func (s SortableAPISpecListByHost) Less(i, j int) bool {
return len(s[i].Domain) > len(s[j].Domain)
}
func notifyAPILoaded(spec *APISpec) {
if globalConf.UseRedisLog {
log.WithFields(logrus.Fields{
"prefix": "gateway",
"user_ip": "--",
"server_name": "--",
"user_id": "--",
"org_id": spec.OrgID,
"api_id": spec.APIID,
}).Info("Loaded: ", spec.Name)
}
}
func rpcReloadLoop(rpcKey string) {
for {
RPCListener.CheckForReload(rpcKey)
}
}
func doReload() {
// Load the API Policies
getPolicies()
// load the specs
specs := getAPISpecs()
if len(specs) == 0 {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Warning("No API Definitions found, not reloading")
return
}
// We have updated specs, lets load those...
// Reset the JSVM
if globalConf.EnableJSVM {
GlobalEventsJSVM.Init()
}
log.WithFields(logrus.Fields{
"prefix": "main",
}).Info("Preparing new router")
newRouter := mux.NewRouter()
mainRouter = newRouter
if globalConf.ControlAPIPort == 0 {
loadAPIEndpoints(newRouter)
}
loadApps(specs, newRouter)
newServeMux := http.NewServeMux()
newServeMux.Handle("/", mainRouter)
http.DefaultServeMux = newServeMux
log.WithFields(logrus.Fields{
"prefix": "main",
}).Info("API reload complete")
// Unset these
RPC_EmergencyModeLoaded = false
RPC_EmergencyMode = false
}
// reloadChan is a queue for incoming reload requests. At most, we want
// to have one reload running and one queued. If one is already queued,
// any reload requests should do nothing as a reload is already going to
// start at some point. Hence, buffer of size 1.
// If the queued func is non-nil, it is called once the reload is done.
var reloadChan = make(chan func(), 1)
func reloadLoop(tick <-chan time.Time) {
<-tick
for fn := range reloadChan {
log.Info("Initiating reload")
doReload()
log.Info("Initiating coprocess reload")
doCoprocessReload()
if fn != nil {
fn()
}
<-tick
}
}
// reloadURLStructure will create a new muxer, reload all the app configs for an
// instance and then replace the DefaultServeMux with the new one, this enables a
// reconfiguration to take place without stopping any requests from being handled.
// It returns true if it was queued, or false if it wasn't.
func reloadURLStructure(fn func()) bool {
select {
case reloadChan <- fn:
log.Info("Reload queued")
return true
default:
log.Info("Reload already queued")
return false
}
}
func setupLogger() {
if globalConf.UseSentry {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Enabling Sentry support")
hook, err := logrus_sentry.NewSentryHook(globalConf.SentryCode, []logrus.Level{
logrus.PanicLevel,
logrus.FatalLevel,
logrus.ErrorLevel,
})
hook.Timeout = 0
if err == nil {
log.Hooks.Add(hook)
}
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Sentry hook active")
}
if globalConf.UseSyslog {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Enabling Syslog support")
hook, err := logrus_syslog.NewSyslogHook(globalConf.SyslogTransport,
globalConf.SyslogNetworkAddr,
syslog.LOG_INFO, "")
if err == nil {
log.Hooks.Add(hook)
}
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Syslog hook active")
}
if globalConf.UseGraylog {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Enabling Graylog support")
hook := graylog.NewGraylogHook(globalConf.GraylogNetworkAddr,
map[string]interface{}{"tyk-module": "gateway"})
log.Hooks.Add(hook)
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Graylog hook active")
}
if globalConf.UseLogstash {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Enabling Logstash support")
hook, err := logrus_logstash.NewHook(globalConf.LogstashTransport,
globalConf.LogstashNetworkAddr,
"tyk-gateway")
if err == nil {
log.Hooks.Add(hook)
}
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Logstash hook active")
}
if globalConf.UseRedisLog {
redisHook := newRedisHook()
log.Hooks.Add(redisHook)
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Redis log hook active")
}
}
func initialiseSystem(arguments map[string]interface{}) error {
// Enable command mode
for _, opt := range commandModeOptions {
v := arguments[opt]
if v != nil && v != false {
handleCommandModeArgs(arguments)
os.Exit(0)
}
}
if runningTests && os.Getenv("TYK_LOGLEVEL") == "" {
// `go test` without TYK_LOGLEVEL set defaults to no log
// output
log.Level = logrus.ErrorLevel
log.Out = ioutil.Discard
gorpc.SetErrorLogger(func(string, ...interface{}) {})
} else if arguments["--debug"] == true {
log.Level = logrus.DebugLevel
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("Enabling debug-level output")
}
if conf := arguments["--conf"]; conf != nil {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debugf("Using %s for configuration", conf.(string))
confPaths = []string{conf.(string)}
} else {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Debug("No configuration file defined, will try to use default (tyk.conf)")
}
if !runningTests {
if err := config.Load(confPaths, &globalConf); err != nil {
return err
}
afterConfSetup(&globalConf)
}
if globalConf.Storage.Type != "redis" {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Fatal("Redis connection details not set, please ensure that the storage type is set to Redis and that the connection parameters are correct.")
}
setupGlobals()
if port := arguments["--port"]; port != nil {
portNum, err := strconv.Atoi(port.(string))
if err != nil {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Error("Port specified in flags must be a number: ", err)
} else {
globalConf.ListenPort = portNum
}
}
// Enable all the loggers
setupLogger()
if globalConf.PIDFileLocation == "" {
globalConf.PIDFileLocation = "/var/run/tyk-gateway.pid"
}
log.WithFields(logrus.Fields{
"prefix": "main",
}).Info("PIDFile location set to: ", globalConf.PIDFileLocation)
pidfile.SetPidfilePath(globalConf.PIDFileLocation)
if err := pidfile.Write(); err != nil {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Error("Failed to write PIDFile: ", err)
}
getHostDetails()
//doInstrumentation, _ := arguments["--log-instrumentation"].(bool)
//SetupInstrumentation(doInstrumentation)
SetupInstrumentation(true)
if globalConf.HttpServerOptions.UseLE_SSL {
go StartPeriodicStateBackup(&LE_MANAGER)
}
return nil
}
// afterConfSetup takes care of non-sensical config values (such as zero
// timeouts) and sets up a few globals that depend on the config.
func afterConfSetup(conf *config.Config) {
if conf.SlaveOptions.CallTimeout == 0 {
conf.SlaveOptions.CallTimeout = 30
}
if conf.SlaveOptions.PingTimeout == 0 {
conf.SlaveOptions.PingTimeout = 60
}
GlobalRPCPingTimeout = time.Second * time.Duration(conf.SlaveOptions.PingTimeout)
GlobalRPCCallTimeout = time.Second * time.Duration(conf.SlaveOptions.CallTimeout)
conf.EventTriggers = InitGenericEventHandlers(conf.EventHandlers)
}
type AuditHostDetails struct {
Hostname string
PID int
}
var HostDetails AuditHostDetails
func getHostDetails() {
var err error
if HostDetails.PID, err = pidfile.Read(); err != nil {
log.Error("Failed ot get host pid: ", err)
}
if HostDetails.Hostname, err = os.Hostname(); err != nil {
log.Error("Failed ot get hostname: ", err)
}
}
func getCmdArguments() map[string]interface{} {
usage := `Tyk API Gateway.
Usage:
tyk [options]
Options:
-h --help Show this screen
--conf=FILE Load a named configuration file
--port=PORT Listen on PORT (overrides confg file)
--memprofile Generate a memory profile
--cpuprofile Generate a cpu profile
--httpprofile Expose runtime profiling data via HTTP
--debug Enable Debug output
--import-blueprint=<file> Import an API Blueprint file
--import-swagger=<file> Import a Swagger file
--create-api Creates a new API Definition from the blueprint
--org-id=<id> Assign the API Defintition to this org_id (required with create)
--upstream-target=<url> Set the upstream target for the definition
--as-mock Creates the API as a mock based on example fields
--for-api=<path> Adds blueprint to existing API Defintition as version
--as-version=<version> The version number to use when inserting
--log-instrumentation Output instrumentation data to stdout
`
arguments, err := docopt.Parse(usage, nil, true, VERSION, false)
if err != nil {
// docopt will exit on its own if there are any user
// errors, such as an unknown flag being used.
panic(err)
}
return arguments
}
var KeepaliveRunning bool
func startRPCKeepaliveWatcher(engine *RPCStorageHandler) {
if KeepaliveRunning {
return
}
go func() {
log.WithFields(logrus.Fields{
"prefix": "RPC Conn Mgr",
}).Info("[RPC Conn Mgr] Starting keepalive watcher...")
for {
KeepaliveRunning = true
rpcKeepAliveCheck(engine)
if engine == nil {
log.WithFields(logrus.Fields{
"prefix": "RPC Conn Mgr",
}).Info("No engine, break")
KeepaliveRunning = false
break
}
if engine.Killed {
log.WithFields(logrus.Fields{
"prefix": "RPC Conn Mgr",
}).Debug("[RPC Conn Mgr] this connection killed")
KeepaliveRunning = false
break
}
}
}()
}
func getGlobalLocalStorageHandler(keyPrefix string, hashKeys bool) StorageHandler {
return &RedisClusterStorageManager{KeyPrefix: keyPrefix, HashKeys: hashKeys}
}
func getGlobalLocalCacheStorageHandler(keyPrefix string, hashKeys bool) StorageHandler {
return &RedisClusterStorageManager{KeyPrefix: keyPrefix, HashKeys: hashKeys, IsCache: true}
}
func getGlobalStorageHandler(keyPrefix string, hashKeys bool) StorageHandler {
if globalConf.SlaveOptions.UseRPC {
return &RPCStorageHandler{KeyPrefix: keyPrefix, HashKeys: hashKeys, UserKey: globalConf.SlaveOptions.APIKey, Address: globalConf.SlaveOptions.ConnectionString}
}
return &RedisClusterStorageManager{KeyPrefix: keyPrefix, HashKeys: hashKeys}
}
// Handles pre-fork actions if we get a SIGHUP2
var amForked bool
func onFork() {
if globalConf.UseDBAppConfigs {
log.Info("Stopping heartbeat")
DashService.StopBeating()
log.Info("Waiting to de-register")
time.Sleep(10 * time.Second)
os.Setenv("TYK_SERVICE_NONCE", ServiceNonce)
os.Setenv("TYK_SERVICE_NODEID", NodeID)
}
amForked = true
}
func generateRandomNodeID() string {
u := uuid.NewV4()
return "solo-" + u.String()
}
func main() {
arguments := getCmdArguments()
NodeID = generateRandomNodeID()
l, goAgainErr := goagain.Listener(onFork)
controlListener, goAgainErr := goagain.Listener(onFork)
if err := initialiseSystem(arguments); err != nil {
log.WithFields(logrus.Fields{
"prefix": "main",
}).Fatalf("Error initialising system: %v", err)
}
start(arguments)
if goAgainErr != nil {
var err error