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add cocolyze, babbar, surdotly, awesome_bot user agents 

reduce matching in the router slightly
use hookgen for router_after_filters
use hookgen for router_pre_route
shorten ua buffer variable name
skip more symbols in initial ua loop
shorten vulnscan string
avoid unneccessary fork in ua logic
This commit is contained in:
Azareal 2020-05-27 07:08:13 +10:00
parent 6be9a25e89
commit d0bc74f58f
3 changed files with 245 additions and 135 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

191
gen_router.go
View File

@ -20,6 +20,8 @@ import (
"github.com/Azareal/Gosora/uutils"
"github.com/Azareal/Gosora/routes"
"github.com/Azareal/Gosora/routes/panel"
//"github.com/andybalholm/brotli"
)
var ErrNoRoute = errors.New("That route doesn't exist.")
@ -618,18 +620,22 @@ var agentMapEnum = map[string]int{
"proximic": 44,
"megaindex": 45,
"majestic": 46,
"netcraft": 47,
"blexbot": 48,
"burf": 49,
"aspiegel": 50,
"mail_ru": 51,
"ccbot": 52,
"zgrab": 53,
"cloudsystemnetworks": 54,
"curl": 55,
"python": 56,
"go": 57,
"headlesschrome": 58,
"cocolyze": 47,
"babbar": 48,
"surdotly": 49,
"netcraft": 50,
"blexbot": 51,
"burf": 52,
"aspiegel": 53,
"mail_ru": 54,
"ccbot": 55,
"zgrab": 56,
"cloudsystemnetworks": 57,
"curl": 58,
"python": 59,
"go": 60,
"headlesschrome": 61,
"awesome_bot": 62,
}
var reverseAgentMapEnum = map[int]string{
0: "unknown",
@ -679,18 +685,22 @@ var reverseAgentMapEnum = map[int]string{
44: "proximic",
45: "megaindex",
46: "majestic",
47: "netcraft",
48: "blexbot",
49: "burf",
50: "aspiegel",
51: "mail_ru",
52: "ccbot",
53: "zgrab",
54: "cloudsystemnetworks",
55: "curl",
56: "python",
57: "go",
58: "headlesschrome",
47: "cocolyze",
48: "babbar",
49: "surdotly",
50: "netcraft",
51: "blexbot",
52: "burf",
53: "aspiegel",
54: "mail_ru",
55: "ccbot",
56: "zgrab",
57: "cloudsystemnetworks",
58: "curl",
59: "python",
60: "go",
61: "headlesschrome",
62: "awesome_bot",
}
var markToAgent = map[string]string{
"OPR": "opera",
@ -741,6 +751,9 @@ var markToAgent = map[string]string{
"MegaIndex": "megaindex",
"MJ12bot": "majestic",
"mj12bot": "majestic",
"Cocolyzebot": "cocolyze",
"Barkrowler": "babbar",
"SurdotlyBot": "surdotly",
"NetcraftSurveyAgent": "netcraft",
"BLEXBot": "blexbot",
"Burf": "burf",
@ -753,6 +766,7 @@ var markToAgent = map[string]string{
"python": "python",
"Go": "go",
"HeadlessChrome": "headlesschrome",
"awesome_bot": "awesome_bot",
}
var markToID = map[string]int{
"OPR": 3,
@ -803,18 +817,22 @@ var markToID = map[string]int{
"MegaIndex": 45,
"MJ12bot": 46,
"mj12bot": 46,
"NetcraftSurveyAgent": 47,
"BLEXBot": 48,
"Burf": 49,
"AspiegelBot": 50,
"RU_Bot": 51,
"CCBot": 52,
"zgrab": 53,
"Nimbostratus": 54,
"curl": 55,
"python": 56,
"Go": 57,
"HeadlessChrome": 58,
"Cocolyzebot": 47,
"Barkrowler": 48,
"SurdotlyBot": 49,
"NetcraftSurveyAgent": 50,
"BLEXBot": 51,
"Burf": 52,
"AspiegelBot": 53,
"RU_Bot": 54,
"CCBot": 55,
"zgrab": 56,
"Nimbostratus": 57,
"curl": 58,
"python": 59,
"Go": 60,
"HeadlessChrome": 61,
"awesome_bot": 62,
}
/*var agentRank = map[string]int{
"opera":9,
@ -957,7 +975,9 @@ func isLocalHost(h string) bool {
return h=="localhost" || h=="127.0.0.1" || h=="::1"
}
//var brPool = sync.Pool{}
var gzipPool = sync.Pool{}
//var uaBufPool = sync.Pool{}
// TODO: Pass the default path or config struct to the router rather than accessing it via a package global
// TODO: SetDefaultPath
@ -1040,7 +1060,7 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
lp := strings.ToLower(req.URL.Path)
// TODO: Flag any requests which has a dot with anything but a number after that
// TODO: Use HasSuffix to avoid over-scanning?
if strings.Contains(lp,"..")/* || strings.Contains(lp,"--")*/ || strings.Contains(lp,".php") || strings.Contains(lp,".asp") || strings.Contains(lp,".cgi") || strings.Contains(lp,".py") || strings.Contains(lp,".sql") || strings.Contains(lp,".action") {
if strings.Contains(lp,"..")/* || strings.Contains(lp,"--")*/ || strings.Contains(lp,".php") || strings.Contains(lp,".asp") || strings.Contains(lp,".cgi") || strings.Contains(lp,".py") || strings.Contains(lp,".sql") || strings.Contains(lp,".act") { //.action
r.SuspiciousRequest(req,"Bad snippet in path")
}
@ -1053,7 +1073,7 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
// TODO: Use the same hook table as downstream
hTbl := c.GetHookTable()
skip, ferr := hTbl.VhookSkippable("router_after_filters", w, req, prefix)
skip, ferr := c.H_router_after_filters_hook(hTbl, w, req, prefix)
if skip || ferr != nil {
return
}
@ -1116,18 +1136,22 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
}
} else {
// WIP UA Parser
//var ii = uaBufPool.Get()
var buf []byte
//if ii != nil {
// buf = ii.([]byte)
//}
var items []string
var buffer []byte
var os int
for _, it := range uutils.StringToBytes(ua) {
if (it > 64 && it < 91) || (it > 96 && it < 123) || it == '_' {
// TODO: Store an index and slice that instead?
buffer = append(buffer, it)
} else if it == ' ' || it == '(' || it == ')' || it == '-' || (it > 47 && it < 58) || it == ';' || it == ':' || it == '.' || it == '+' || it == '~' || it == '@' /*|| (it == ':' && bytes.Equal(buffer,[]byte("http")))*/ || it == ',' || it == '/' {
if len(buffer) != 0 {
if len(buffer) > 2 {
buf = append(buf, it)
} else if it == ' ' || it == '(' || it == ')' || it == '-' || (it > 47 && it < 58) || it == ';' || it == ':' || it == '.' || it == '+' || it == '~' || it == '@' /*|| (it == ':' && bytes.Equal(buf,[]byte("http")))*/ || it == ',' || it == '/' {
if len(buf) != 0 {
if len(buf) > 2 {
// Use an unsafe zero copy conversion here just to use the switch, it's not safe for this string to escape from here, as it will get mutated, so do a regular string conversion in append
switch(uutils.BytesToString(buffer)) {
switch(uutils.BytesToString(buf)) {
case "Windows":
os = 1
case "Linux":
@ -1138,23 +1162,24 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
os = 5
case "Android":
os = 4
case "like","compatible":
case "like","compatible","NT","X","KHTML":
// Skip these words
default:
items = append(items, string(buffer))
items = append(items, string(buf))
}
}
buffer = buffer[:0]
buf = buf[:0]
}
} else {
// TODO: Test this
items = items[:0]
r.SuspiciousRequest(req,"Illegal char "+strconv.Itoa(int(it))+" in UA")
r.requestLogger.Print("UA Buf: ", buffer)
r.requestLogger.Print("UA Buf String: ", string(buffer))
r.requestLogger.Print("UA Buf: ", buf)
r.requestLogger.Print("UA Buf String: ", string(buf))
break
}
}
//uaBufPool.Put(buf)
// Iterate over this in reverse as the real UA tends to be on the right side
for i := len(items) - 1; i >= 0; i-- {
@ -1171,6 +1196,9 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
r.requestLogger.Print("parsed agent: ", agent)
r.requestLogger.Print("os: ", os)
r.requestLogger.Printf("items: %+v\n",items)
/*for _, it := range items {
r.requestLogger.Printf("it: %+v\n",string(it))
}*/
}
// Special handling
@ -1188,12 +1216,12 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
if strings.Contains(ua,"rv:11") {
agent = 6
}
case 53:
r.SuspiciousRequest(req,"Vulnerability Scanner")
case 56:
r.SuspiciousRequest(req,"Vuln Scanner")
}
if agent == 0 {
co.AgentViewCounter.Bump(0)
//co.AgentViewCounter.Bump(0)
if c.Dev.DebugMode {
var pre string
for _, char := range req.UserAgent() {
@ -1203,10 +1231,10 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
} else {
r.requestLogger.Print("unknown ua: ", c.SanitiseSingleLine(ua))
}
} else {
}// else {
//co.AgentViewCounter.Bump(agentMapEnum[agent])
co.AgentViewCounter.Bump(agent)
}
//}
co.OSViewCounter.Bump(os)
}
@ -1270,7 +1298,31 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
//log.Println("req: ", req)
// Disable Gzip when SSL is disabled for security reasons?
if prefix != "/ws" && strings.Contains(req.Header.Get("Accept-Encoding"), "gzip") {
if prefix != "/ws" {
ae := req.Header.Get("Accept-Encoding")
/*if strings.Contains(ae, "br") {
h := w.Header()
h.Set("Content-Encoding", "br")
var ii = brPool.Get()
var igzw *brotli.Writer
if ii == nil {
igzw = brotli.NewWriter(w)
} else {
igzw = ii.(*brotli.Writer)
igzw.Reset(w)
}
gzw := c.BrResponseWriter{Writer: igzw, ResponseWriter: w}
defer func() {
//h := w.Header()
if h.Get("Content-Encoding") == "br" && h.Get("X-I") == "" {
//log.Print("push br close")
igzw := gzw.Writer.(*brotli.Writer)
igzw.Close()
brPool.Put(igzw)
}
}()
w = gzw
} else */if strings.Contains(ae, "gzip") {
h := w.Header()
h.Set("Content-Encoding", "gzip")
var ii = gzipPool.Get()
@ -1293,8 +1345,9 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
}()
w = gzw
}
}
skip, ferr = hTbl.VhookSkippable("router_pre_route", w, req, user, prefix)
skip, ferr = c.H_router_pre_route_hook(hTbl, w, req, user, prefix)
if skip || ferr != nil {
r.handleError(ferr,w,req,user)
return
@ -1363,8 +1416,8 @@ func (r *GenRouter) routeSwitch(w http.ResponseWriter, req *http.Request, user *
return err
}
gzw, ok := w.(c.GzipResponseWriter)
if ok {
if gzw, ok := w.(c.GzipResponseWriter); ok {
w = gzw.ResponseWriter
w.Header().Del("Content-Encoding")
}
@ -1929,8 +1982,8 @@ func (r *GenRouter) routeSwitch(w http.ResponseWriter, req *http.Request, user *
return err
}
gzw, ok := w.(c.GzipResponseWriter)
if ok {
if gzw, ok := w.(c.GzipResponseWriter); ok {
w = gzw.ResponseWriter
w.Header().Del("Content-Encoding")
}
@ -2821,11 +2874,12 @@ func (r *GenRouter) routeSwitch(w http.ResponseWriter, req *http.Request, user *
co.RouteViewCounter.Bump3(166, cn)
return c.NotFound(w,req,nil)
}
gzw, ok := w.(c.GzipResponseWriter)
if ok {
/*if bzw, ok := w.(c.BrResponseWriter); ok {
w = bzw.ResponseWriter
w.Header().Del("Content-Encoding")
} else */if gzw, ok := w.(c.GzipResponseWriter); ok {
w = gzw.ResponseWriter
h := w.Header()
h.Del("Content-Encoding")
w.Header().Del("Content-Encoding")
}
req.URL.Path += extraData
// TODO: Find a way to propagate errors up from this?
@ -2840,11 +2894,12 @@ func (r *GenRouter) routeSwitch(w http.ResponseWriter, req *http.Request, user *
co.RouteViewCounter.Bump3(168, cn)
return routes.RobotsTxt(w,req)
case "favicon.ico":
gzw, ok := w.(c.GzipResponseWriter)
if ok {
/*if bzw, ok := w.(c.BrResponseWriter); ok {
w = bzw.ResponseWriter
w.Header().Del("Content-Encoding")
} else */if gzw, ok := w.(c.GzipResponseWriter); ok {
w = gzw.ResponseWriter
h := w.Header()
h.Del("Content-Encoding")
w.Header().Del("Content-Encoding")
}
req.URL.Path = "/s/favicon.ico"
routes.StaticFile(w,req)

4
langs/english.json
View File

@ -230,6 +230,9 @@
"proximic":"Comscore",
"megaindex":"MegaIndex",
"majestic":"MJ12bot",
"cocolyze":"Cocolyze",
"babbar":"Babbar",
"surdotly":"Surdotly",
"netcraft":"Netcraft",
"blexbot":"BLEXBot",
"burf":"Burf.co",
@ -242,6 +245,7 @@
"python":"Python Bot",
"go":"Go Bot",
"headlesschrome":"Headless Chrome",
"awesome_bot":"Awesome Bot",
"suspicious":"Suspicious",
"unknown":"Unknown",
"blank":"Blank",

105
router_gen/main.go
View File

@ -278,6 +278,9 @@ func main() {
"proximic",
"megaindex",
"majestic",
"cocolyze",
"babbar",
"surdotly",
"netcraft",
"blexbot",
"burf",
@ -290,6 +293,7 @@ func main() {
"python",
"go",
"headlesschrome",
"awesome_bot",
}
tmplVars.AllAgentMap = make(map[string]int)
@ -348,6 +352,9 @@ func main() {
"MegaIndex",
"MJ12bot",
"mj12bot",
"Cocolyzebot",
"Barkrowler",
"SurdotlyBot",
"NetcraftSurveyAgent",
"BLEXBot",
"Burf",
@ -360,6 +367,7 @@ func main() {
"python",
"Go",
"HeadlessChrome",
"awesome_bot",
}
tmplVars.AllAgentMarks = map[string]string{
@ -413,6 +421,9 @@ func main() {
"MegaIndex": "megaindex",
"MJ12bot": "majestic",
"mj12bot": "majestic",
"Cocolyzebot": "cocolyze",
"Barkrowler": "babbar",
"SurdotlyBot": "surdotly",
"NetcraftSurveyAgent": "netcraft",
"BLEXBot": "blexbot",
"Burf": "burf",
@ -425,6 +436,7 @@ func main() {
"python": "python",
"Go": "go",
"HeadlessChrome": "headlesschrome",
"awesome_bot": "awesome_bot",
}
tmplVars.AllAgentMarkIDs = make(map[string]int)
@ -454,6 +466,8 @@ import (
"github.com/Azareal/Gosora/uutils"
"github.com/Azareal/Gosora/routes"
"github.com/Azareal/Gosora/routes/panel"
//"github.com/andybalholm/brotli"
)
var ErrNoRoute = errors.New("That route doesn't exist.")
@ -628,7 +642,9 @@ func isLocalHost(h string) bool {
return h=="localhost" || h=="127.0.0.1" || h=="::1"
}
//var brPool = sync.Pool{}
var gzipPool = sync.Pool{}
//var uaBufPool = sync.Pool{}
// TODO: Pass the default path or config struct to the router rather than accessing it via a package global
// TODO: SetDefaultPath
@ -711,7 +727,7 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
lp := strings.ToLower(req.URL.Path)
// TODO: Flag any requests which has a dot with anything but a number after that
// TODO: Use HasSuffix to avoid over-scanning?
if strings.Contains(lp,"..")/* || strings.Contains(lp,"--")*/ || strings.Contains(lp,".php") || strings.Contains(lp,".asp") || strings.Contains(lp,".cgi") || strings.Contains(lp,".py") || strings.Contains(lp,".sql") || strings.Contains(lp,".action") {
if strings.Contains(lp,"..")/* || strings.Contains(lp,"--")*/ || strings.Contains(lp,".php") || strings.Contains(lp,".asp") || strings.Contains(lp,".cgi") || strings.Contains(lp,".py") || strings.Contains(lp,".sql") || strings.Contains(lp,".act") { //.action
r.SuspiciousRequest(req,"Bad snippet in path")
}
@ -724,7 +740,7 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
// TODO: Use the same hook table as downstream
hTbl := c.GetHookTable()
skip, ferr := hTbl.VhookSkippable("router_after_filters", w, req, prefix)
skip, ferr := c.H_router_after_filters_hook(hTbl, w, req, prefix)
if skip || ferr != nil {
return
}
@ -787,18 +803,22 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
}
} else {
// WIP UA Parser
//var ii = uaBufPool.Get()
var buf []byte
//if ii != nil {
// buf = ii.([]byte)
//}
var items []string
var buffer []byte
var os int
for _, it := range uutils.StringToBytes(ua) {
if (it > 64 && it < 91) || (it > 96 && it < 123) || it == '_' {
// TODO: Store an index and slice that instead?
buffer = append(buffer, it)
} else if it == ' ' || it == '(' || it == ')' || it == '-' || (it > 47 && it < 58) || it == ';' || it == ':' || it == '.' || it == '+' || it == '~' || it == '@' /*|| (it == ':' && bytes.Equal(buffer,[]byte("http")))*/ || it == ',' || it == '/' {
if len(buffer) != 0 {
if len(buffer) > 2 {
buf = append(buf, it)
} else if it == ' ' || it == '(' || it == ')' || it == '-' || (it > 47 && it < 58) || it == ';' || it == ':' || it == '.' || it == '+' || it == '~' || it == '@' /*|| (it == ':' && bytes.Equal(buf,[]byte("http")))*/ || it == ',' || it == '/' {
if len(buf) != 0 {
if len(buf) > 2 {
// Use an unsafe zero copy conversion here just to use the switch, it's not safe for this string to escape from here, as it will get mutated, so do a regular string conversion in append
switch(uutils.BytesToString(buffer)) {
switch(uutils.BytesToString(buf)) {
case "Windows":
os = {{.AllOSMap.windows}}
case "Linux":
@ -809,23 +829,24 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
os = {{.AllOSMap.iphone}}
case "Android":
os = {{.AllOSMap.android}}
case "like","compatible":
case "like","compatible","NT","X","KHTML":
// Skip these words
default:
items = append(items, string(buffer))
items = append(items, string(buf))
}
}
buffer = buffer[:0]
buf = buf[:0]
}
} else {
// TODO: Test this
items = items[:0]
r.SuspiciousRequest(req,"Illegal char "+strconv.Itoa(int(it))+" in UA")
r.requestLogger.Print("UA Buf: ", buffer)
r.requestLogger.Print("UA Buf String: ", string(buffer))
r.requestLogger.Print("UA Buf: ", buf)
r.requestLogger.Print("UA Buf String: ", string(buf))
break
}
}
//uaBufPool.Put(buf)
// Iterate over this in reverse as the real UA tends to be on the right side
for i := len(items) - 1; i >= 0; i-- {
@ -842,6 +863,9 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
r.requestLogger.Print("parsed agent: ", agent)
r.requestLogger.Print("os: ", os)
r.requestLogger.Printf("items: %+v\n",items)
/*for _, it := range items {
r.requestLogger.Printf("it: %+v\n",string(it))
}*/
}
// Special handling
@ -860,11 +884,11 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
agent = {{.AllAgentMap.internetexplorer}}
}
case {{.AllAgentMap.zgrab}}:
r.SuspiciousRequest(req,"Vulnerability Scanner")
r.SuspiciousRequest(req,"Vuln Scanner")
}
if agent == 0 {
co.AgentViewCounter.Bump({{.AllAgentMap.unknown}})
//co.AgentViewCounter.Bump({{.AllAgentMap.unknown}})
if c.Dev.DebugMode {
var pre string
for _, char := range req.UserAgent() {
@ -874,10 +898,10 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
} else {
r.requestLogger.Print("unknown ua: ", c.SanitiseSingleLine(ua))
}
} else {
}// else {
//co.AgentViewCounter.Bump(agentMapEnum[agent])
co.AgentViewCounter.Bump(agent)
}
//}
co.OSViewCounter.Bump(os)
}
@ -941,7 +965,31 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
//log.Println("req: ", req)
// Disable Gzip when SSL is disabled for security reasons?
if prefix != "/ws" && strings.Contains(req.Header.Get("Accept-Encoding"), "gzip") {
if prefix != "/ws" {
ae := req.Header.Get("Accept-Encoding")
/*if strings.Contains(ae, "br") {
h := w.Header()
h.Set("Content-Encoding", "br")
var ii = brPool.Get()
var igzw *brotli.Writer
if ii == nil {
igzw = brotli.NewWriter(w)
} else {
igzw = ii.(*brotli.Writer)
igzw.Reset(w)
}
gzw := c.BrResponseWriter{Writer: igzw, ResponseWriter: w}
defer func() {
//h := w.Header()
if h.Get("Content-Encoding") == "br" && h.Get("X-I") == "" {
//log.Print("push br close")
igzw := gzw.Writer.(*brotli.Writer)
igzw.Close()
brPool.Put(igzw)
}
}()
w = gzw
} else */if strings.Contains(ae, "gzip") {
h := w.Header()
h.Set("Content-Encoding", "gzip")
var ii = gzipPool.Get()
@ -964,8 +1012,9 @@ func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
}()
w = gzw
}
}
skip, ferr = hTbl.VhookSkippable("router_pre_route", w, req, user, prefix)
skip, ferr = c.H_router_pre_route_hook(hTbl, w, req, user, prefix)
if skip || ferr != nil {
r.handleError(ferr,w,req,user)
return
@ -1004,11 +1053,12 @@ func (r *GenRouter) routeSwitch(w http.ResponseWriter, req *http.Request, user *
co.RouteViewCounter.Bump3({{index .AllRouteMap "routes.UploadedFile"}}, cn)
return c.NotFound(w,req,nil)
}
gzw, ok := w.(c.GzipResponseWriter)
if ok {
/*if bzw, ok := w.(c.BrResponseWriter); ok {
w = bzw.ResponseWriter
w.Header().Del("Content-Encoding")
} else */if gzw, ok := w.(c.GzipResponseWriter); ok {
w = gzw.ResponseWriter
h := w.Header()
h.Del("Content-Encoding")
w.Header().Del("Content-Encoding")
}
req.URL.Path += extraData
// TODO: Find a way to propagate errors up from this?
@ -1023,11 +1073,12 @@ func (r *GenRouter) routeSwitch(w http.ResponseWriter, req *http.Request, user *
co.RouteViewCounter.Bump3({{index .AllRouteMap "routes.RobotsTxt"}}, cn)
return routes.RobotsTxt(w,req)
case "favicon.ico":
gzw, ok := w.(c.GzipResponseWriter)
if ok {
/*if bzw, ok := w.(c.BrResponseWriter); ok {
w = bzw.ResponseWriter
w.Header().Del("Content-Encoding")
} else */if gzw, ok := w.(c.GzipResponseWriter); ok {
w = gzw.ResponseWriter
h := w.Header()
h.Del("Content-Encoding")
w.Header().Del("Content-Encoding")
}
req.URL.Path = "/s/favicon.ico"
routes.StaticFile(w,req)