fix #794

@@ -15,7 +15,6 @@
 package beego
 
 import (
-	"errors"
 	"fmt"
 	"html/template"
 	"os"
@@ -48,8 +47,8 @@ var (
 	RecoverPanic           bool // flag of auto recover panic
 	AutoRender             bool // flag of render template automatically
 	ViewsPath              string
-	RunMode                string // run mode, "dev" or "prod"
-	AppConfig              config.ConfigContainer
+	AppConfig              *beegoAppConfig
+	RunMode                string           // run mode, "dev" or "prod"
 	GlobalSessions         *session.Manager // global session mananger
 	SessionOn              bool             // flag of starting session auto. default is false.
 	SessionProvider        string           // default session provider, memory, mysql , redis ,etc.
@@ -84,6 +83,107 @@ var (
 	RouterCaseSensitive    bool   // router case sensitive default is true
 )
 
+type beegoAppConfig struct {
+	innerConfig config.ConfigContainer
+}
+
+func newAppConfig(AppConfigProvider, AppConfigPath string) *beegoAppConfig {
+	ac, err := config.NewConfig(AppConfigProvider, AppConfigPath)
+	if err != nil {
+		ac = config.NewFakeConfig()
+	}
+	rac := &beegoAppConfig{ac}
+	return rac
+}
+
+func (b *beegoAppConfig) Set(key, val string) error {
+	return b.innerConfig.Set(key, val)
+}
+
+func (b *beegoAppConfig) String(key string) string {
+	v := b.innerConfig.String(RunMode + "::" + key)
+	if v == "" {
+		return b.innerConfig.String(key)
+	}
+	return v
+}
+
+func (b *beegoAppConfig) Strings(key string) []string {
+	v := b.innerConfig.Strings(RunMode + "::" + key)
+	if len(v) == 0 {
+		return b.innerConfig.Strings(key)
+	}
+	return v
+}
+
+func (b *beegoAppConfig) Int(key string) (int, error) {
+	v, err := b.innerConfig.Int(RunMode + "::" + key)
+	if err != nil {
+		return b.innerConfig.Int(key)
+	}
+	return v, nil
+}
+
+func (b *beegoAppConfig) Int64(key string) (int64, error) {
+	v, err := b.innerConfig.Int64(RunMode + "::" + key)
+	if err != nil {
+		return b.innerConfig.Int64(key)
+	}
+	return v, nil
+}
+
+func (b *beegoAppConfig) Bool(key string) (bool, error) {
+	v, err := b.innerConfig.Bool(RunMode + "::" + key)
+	if err != nil {
+		return b.innerConfig.Bool(key)
+	}
+	return v, nil
+}
+
+func (b *beegoAppConfig) Float(key string) (float64, error) {
+	v, err := b.innerConfig.Float(RunMode + "::" + key)
+	if err != nil {
+		return b.innerConfig.Float(key)
+	}
+	return v, nil
+}
+
+func (b *beegoAppConfig) DefaultString(key string, defaultval string) string {
+	return b.innerConfig.DefaultString(key, defaultval)
+}
+
+func (b *beegoAppConfig) DefaultStrings(key string, defaultval []string) []string {
+	return b.innerConfig.DefaultStrings(key, defaultval)
+}
+
+func (b *beegoAppConfig) DefaultInt(key string, defaultval int) int {
+	return b.innerConfig.DefaultInt(key, defaultval)
+}
+
+func (b *beegoAppConfig) DefaultInt64(key string, defaultval int64) int64 {
+	return b.innerConfig.DefaultInt64(key, defaultval)
+}
+
+func (b *beegoAppConfig) DefaultBool(key string, defaultval bool) bool {
+	return b.innerConfig.DefaultBool(key, defaultval)
+}
+
+func (b *beegoAppConfig) DefaultFloat(key string, defaultval float64) float64 {
+	return b.innerConfig.DefaultFloat(key, defaultval)
+}
+
+func (b *beegoAppConfig) DIY(key string) (interface{}, error) {
+	return b.innerConfig.DIY(key)
+}
+
+func (b *beegoAppConfig) GetSection(section string) (map[string]string, error) {
+	return b.innerConfig.GetSection(section)
+}
+
+func (b *beegoAppConfig) SaveConfigFile(filename string) error {
+	return b.innerConfig.SaveConfigFile(filename)
+}
+
 func init() {
 	// create beego application
 	BeeApp = NewApp()
@@ -186,255 +286,196 @@ func init() {
 // ParseConfig parsed default config file.
 // now only support ini, next will support json.
 func ParseConfig() (err error) {
-	AppConfig, err = config.NewConfig(AppConfigProvider, AppConfigPath)
-	if err != nil {
-		AppConfig = config.NewFakeConfig()
-		return err
-	} else {
+	AppConfig = newAppConfig(AppConfigProvider, AppConfigPath)
 
-		if v, err := GetConfig("string", "HttpAddr"); err == nil {
-			HttpAddr = v.(string)
-		}
+	// set the runmode first
+	if runmode := AppConfig.String("RunMode"); runmode != "" {
+		RunMode = runmode
+	}
 
-		if v, err := GetConfig("int", "HttpPort"); err == nil {
-			HttpPort = v.(int)
-		}
+	HttpAddr = AppConfig.String("HttpAddr")
 
-		if v, err := GetConfig("bool", "EnableHttpListen"); err == nil {
-			EnableHttpListen = v.(bool)
-		}
+	if v, err := AppConfig.Int("HttpPort"); err == nil {
+		HttpPort = v
+	}
 
-		if maxmemory, err := GetConfig("int64", "MaxMemory"); err == nil {
-			MaxMemory = maxmemory.(int64)
-		}
+	if v, err := AppConfig.Bool("EnableHttpListen"); err == nil {
+		EnableHttpListen = v
+	}
 
-		if appname, _ := GetConfig("string", "AppName"); appname != "" {
-			AppName = appname.(string)
-		}
+	if maxmemory, err := AppConfig.Int64("MaxMemory"); err == nil {
+		MaxMemory = maxmemory
+	}
 
-		if runmode, _ := GetConfig("string", "RunMode"); runmode != "" {
-			RunMode = runmode.(string)
-		}
+	if appname := AppConfig.String("AppName"); appname != "" {
+		AppName = appname
+	}
 
-		if autorender, err := GetConfig("bool", "AutoRender"); err == nil {
-			AutoRender = autorender.(bool)
-		}
+	if autorender, err := AppConfig.Bool("AutoRender"); err == nil {
+		AutoRender = autorender
+	}
 
-		if autorecover, err := GetConfig("bool", "RecoverPanic"); err == nil {
-			RecoverPanic = autorecover.(bool)
-		}
+	if autorecover, err := AppConfig.Bool("RecoverPanic"); err == nil {
+		RecoverPanic = autorecover
+	}
 
-		if views, _ := GetConfig("string", "ViewsPath"); views != "" {
-			ViewsPath = views.(string)
-		}
+	if views := AppConfig.String("ViewsPath"); views != "" {
+		ViewsPath = views
+	}
 
-		if sessionon, err := GetConfig("bool", "SessionOn"); err == nil {
-			SessionOn = sessionon.(bool)
-		}
+	if sessionon, err := AppConfig.Bool("SessionOn"); err == nil {
+		SessionOn = sessionon
+	}
 
-		if sessProvider, _ := GetConfig("string", "SessionProvider"); sessProvider != "" {
-			SessionProvider = sessProvider.(string)
-		}
+	if sessProvider := AppConfig.String("SessionProvider"); sessProvider != "" {
+		SessionProvider = sessProvider
+	}
 
-		if sessName, _ := GetConfig("string", "SessionName"); sessName != "" {
-			SessionName = sessName.(string)
-		}
+	if sessName := AppConfig.String("SessionName"); sessName != "" {
+		SessionName = sessName
+	}
 
-		if sesssavepath, _ := GetConfig("string", "SessionSavePath"); sesssavepath != "" {
-			SessionSavePath = sesssavepath.(string)
-		}
+	if sesssavepath := AppConfig.String("SessionSavePath"); sesssavepath != "" {
+		SessionSavePath = sesssavepath
+	}
 
-		if sesshashfunc, _ := GetConfig("string", "SessionHashFunc"); sesshashfunc != "" {
-			SessionHashFunc = sesshashfunc.(string)
-		}
+	if sesshashfunc := AppConfig.String("SessionHashFunc"); sesshashfunc != "" {
+		SessionHashFunc = sesshashfunc
+	}
 
-		if sesshashkey, _ := GetConfig("string", "SessionHashKey"); sesshashkey != "" {
-			SessionHashKey = sesshashkey.(string)
-		}
+	if sesshashkey := AppConfig.String("SessionHashKey"); sesshashkey != "" {
+		SessionHashKey = sesshashkey
+	}
 
-		if sessMaxLifeTime, err := GetConfig("int64", "SessionGCMaxLifetime"); err == nil && sessMaxLifeTime != 0 {
-			SessionGCMaxLifetime = sessMaxLifeTime.(int64)
-		}
+	if sessMaxLifeTime, err := AppConfig.Int64("SessionGCMaxLifetime"); err == nil && sessMaxLifeTime != 0 {
+		SessionGCMaxLifetime = sessMaxLifeTime
+	}
 
-		if sesscookielifetime, err := GetConfig("int", "SessionCookieLifeTime"); err == nil && sesscookielifetime != 0 {
-			SessionCookieLifeTime = sesscookielifetime.(int)
-		}
+	if sesscookielifetime, err := AppConfig.Int("SessionCookieLifeTime"); err == nil && sesscookielifetime != 0 {
+		SessionCookieLifeTime = sesscookielifetime
+	}
 
-		if usefcgi, err := GetConfig("bool", "UseFcgi"); err == nil {
-			UseFcgi = usefcgi.(bool)
-		}
+	if usefcgi, err := AppConfig.Bool("UseFcgi"); err == nil {
+		UseFcgi = usefcgi
+	}
 
-		if enablegzip, err := GetConfig("bool", "EnableGzip"); err == nil {
-			EnableGzip = enablegzip.(bool)
-		}
+	if enablegzip, err := AppConfig.Bool("EnableGzip"); err == nil {
+		EnableGzip = enablegzip
+	}
 
-		if directoryindex, err := GetConfig("bool", "DirectoryIndex"); err == nil {
-			DirectoryIndex = directoryindex.(bool)
-		}
+	if directoryindex, err := AppConfig.Bool("DirectoryIndex"); err == nil {
+		DirectoryIndex = directoryindex
+	}
 
-		if timeout, err := GetConfig("int64", "HttpServerTimeOut"); err == nil {
-			HttpServerTimeOut = timeout.(int64)
-		}
+	if timeout, err := AppConfig.Int64("HttpServerTimeOut"); err == nil {
+		HttpServerTimeOut = timeout
+	}
 
-		if errorsshow, err := GetConfig("bool", "ErrorsShow"); err == nil {
-			ErrorsShow = errorsshow.(bool)
-		}
+	if errorsshow, err := AppConfig.Bool("ErrorsShow"); err == nil {
+		ErrorsShow = errorsshow
+	}
 
-		if copyrequestbody, err := GetConfig("bool", "CopyRequestBody"); err == nil {
-			CopyRequestBody = copyrequestbody.(bool)
-		}
+	if copyrequestbody, err := AppConfig.Bool("CopyRequestBody"); err == nil {
+		CopyRequestBody = copyrequestbody
+	}
 
-		if xsrfkey, _ := GetConfig("string", "XSRFKEY"); xsrfkey != "" {
-			XSRFKEY = xsrfkey.(string)
-		}
+	if xsrfkey := AppConfig.String("XSRFKEY"); xsrfkey != "" {
+		XSRFKEY = xsrfkey
+	}
 
-		if enablexsrf, err := GetConfig("bool", "EnableXSRF"); err == nil {
-			EnableXSRF = enablexsrf.(bool)
-		}
+	if enablexsrf, err := AppConfig.Bool("EnableXSRF"); err == nil {
+		EnableXSRF = enablexsrf
+	}
 
-		if expire, err := GetConfig("int", "XSRFExpire"); err == nil {
-			XSRFExpire = expire.(int)
-		}
+	if expire, err := AppConfig.Int("XSRFExpire"); err == nil {
+		XSRFExpire = expire
+	}
 
-		if tplleft, _ := GetConfig("string", "TemplateLeft"); tplleft != "" {
-			TemplateLeft = tplleft.(string)
-		}
+	if tplleft := AppConfig.String("TemplateLeft"); tplleft != "" {
+		TemplateLeft = tplleft
+	}
 
-		if tplright, _ := GetConfig("string", "TemplateRight"); tplright != "" {
-			TemplateRight = tplright.(string)
-		}
+	if tplright := AppConfig.String("TemplateRight"); tplright != "" {
+		TemplateRight = tplright
+	}
 
-		if httptls, err := GetConfig("bool", "EnableHttpTLS"); err == nil {
-			EnableHttpTLS = httptls.(bool)
-		}
+	if httptls, err := AppConfig.Bool("EnableHttpTLS"); err == nil {
+		EnableHttpTLS = httptls
+	}
 
-		if httpsport, err := GetConfig("int", "HttpsPort"); err == nil {
-			HttpsPort = httpsport.(int)
-		}
+	if httpsport, err := AppConfig.Int("HttpsPort"); err == nil {
+		HttpsPort = httpsport
+	}
 
-		if certfile, _ := GetConfig("string", "HttpCertFile"); certfile != "" {
-			HttpCertFile = certfile.(string)
-		}
+	if certfile := AppConfig.String("HttpCertFile"); certfile != "" {
+		HttpCertFile = certfile
+	}
 
-		if keyfile, _ := GetConfig("string", "HttpKeyFile"); keyfile != "" {
-			HttpKeyFile = keyfile.(string)
-		}
+	if keyfile := AppConfig.String("HttpKeyFile"); keyfile != "" {
+		HttpKeyFile = keyfile
+	}
 
-		if serverName, _ := GetConfig("string", "BeegoServerName"); serverName != "" {
-			BeegoServerName = serverName.(string)
-		}
+	if serverName := AppConfig.String("BeegoServerName"); serverName != "" {
+		BeegoServerName = serverName
+	}
 
-		if flashname, _ := GetConfig("string", "FlashName"); flashname != "" {
-			FlashName = flashname.(string)
-		}
+	if flashname := AppConfig.String("FlashName"); flashname != "" {
+		FlashName = flashname
+	}
 
-		if flashseperator, _ := GetConfig("string", "FlashSeperator"); flashseperator != "" {
-			FlashSeperator = flashseperator.(string)
-		}
+	if flashseperator := AppConfig.String("FlashSeperator"); flashseperator != "" {
+		FlashSeperator = flashseperator
+	}
 
-		if sd, _ := GetConfig("string", "StaticDir"); sd != "" {
-			for k := range StaticDir {
-				delete(StaticDir, k)
-			}
-			sds := strings.Fields(sd.(string))
-			for _, v := range sds {
-				if url2fsmap := strings.SplitN(v, ":", 2); len(url2fsmap) == 2 {
-					StaticDir["/"+strings.TrimRight(url2fsmap[0], "/")] = url2fsmap[1]
-				} else {
-					StaticDir["/"+strings.TrimRight(url2fsmap[0], "/")] = url2fsmap[0]
-				}
+	if sd := AppConfig.String("StaticDir"); sd != "" {
+		for k := range StaticDir {
+			delete(StaticDir, k)
+		}
+		sds := strings.Fields(sd)
+		for _, v := range sds {
+			if url2fsmap := strings.SplitN(v, ":", 2); len(url2fsmap) == 2 {
+				StaticDir["/"+strings.TrimRight(url2fsmap[0], "/")] = url2fsmap[1]
+			} else {
+				StaticDir["/"+strings.TrimRight(url2fsmap[0], "/")] = url2fsmap[0]
 			}
 		}
+	}
 
-		if sgz, _ := GetConfig("string", "StaticExtensionsToGzip"); sgz != "" {
-			extensions := strings.Split(sgz.(string), ",")
-			if len(extensions) > 0 {
-				StaticExtensionsToGzip = []string{}
-				for _, ext := range extensions {
-					if len(ext) == 0 {
-						continue
-					}
-					extWithDot := ext
-					if extWithDot[:1] != "." {
-						extWithDot = "." + extWithDot
-					}
-					StaticExtensionsToGzip = append(StaticExtensionsToGzip, extWithDot)
+	if sgz := AppConfig.String("StaticExtensionsToGzip"); sgz != "" {
+		extensions := strings.Split(sgz, ",")
+		if len(extensions) > 0 {
+			StaticExtensionsToGzip = []string{}
+			for _, ext := range extensions {
+				if len(ext) == 0 {
+					continue
 				}
+				extWithDot := ext
+				if extWithDot[:1] != "." {
+					extWithDot = "." + extWithDot
+				}
+				StaticExtensionsToGzip = append(StaticExtensionsToGzip, extWithDot)
 			}
 		}
+	}
 
-		if enableadmin, err := GetConfig("bool", "EnableAdmin"); err == nil {
-			EnableAdmin = enableadmin.(bool)
-		}
-
-		if adminhttpaddr, _ := GetConfig("string", "AdminHttpAddr"); adminhttpaddr != "" {
-			AdminHttpAddr = adminhttpaddr.(string)
-		}
+	if enableadmin, err := AppConfig.Bool("EnableAdmin"); err == nil {
+		EnableAdmin = enableadmin
+	}
 
-		if adminhttpport, err := GetConfig("int", "AdminHttpPort"); err == nil {
-			AdminHttpPort = adminhttpport.(int)
-		}
+	if adminhttpaddr := AppConfig.String("AdminHttpAddr"); adminhttpaddr != "" {
+		AdminHttpAddr = adminhttpaddr
+	}
 
-		if enabledocs, err := GetConfig("bool", "EnableDocs"); err == nil {
-			EnableDocs = enabledocs.(bool)
-		}
+	if adminhttpport, err := AppConfig.Int("AdminHttpPort"); err == nil {
+		AdminHttpPort = adminhttpport
+	}
 
-		if casesensitive, err := GetConfig("bool", "RouterCaseSensitive"); err == nil {
-			RouterCaseSensitive = casesensitive.(bool)
-		}
+	if enabledocs, err := AppConfig.Bool("EnableDocs"); err == nil {
+		EnableDocs = enabledocs
 	}
-	return nil
-}
 
-// Getconfig throw the Runmode
-// [dev]
-// name = astaixe
-// IsEnable = false
-// [prod]
-// name = slene
-// IsEnable = true
-//
-// usage:
-// GetConfig("string", "name")
-// GetConfig("bool", "IsEnable")
-func GetConfig(typ, key string) (interface{}, error) {
-	switch typ {
-	case "string":
-		v := AppConfig.String(RunMode + "::" + key)
-		if v == "" {
-			v = AppConfig.String(key)
-		}
-		return v, nil
-	case "strings":
-		v := AppConfig.Strings(RunMode + "::" + key)
-		if len(v) == 0 {
-			v = AppConfig.Strings(key)
-		}
-		return v, nil
-	case "int":
-		v, err := AppConfig.Int(RunMode + "::" + key)
-		if err != nil || v == 0 {
-			return AppConfig.Int(key)
-		}
-		return v, nil
-	case "bool":
-		v, err := AppConfig.Bool(RunMode + "::" + key)
-		if err != nil {
-			return AppConfig.Bool(key)
-		}
-		return v, nil
-	case "int64":
-		v, err := AppConfig.Int64(RunMode + "::" + key)
-		if err != nil || v == 0 {
-			return AppConfig.Int64(key)
-		}
-		return v, nil
-	case "float":
-		v, err := AppConfig.Float(RunMode + "::" + key)
-		if err != nil || v == 0 {
-			return AppConfig.Float(key)
-		}
-		return v, nil
+	if casesensitive, err := AppConfig.Bool("RouterCaseSensitive"); err == nil {
+		RouterCaseSensitive = casesensitive
 	}
-	return "", errors.New("not support type")
+	return nil
 }