gosora/router_gen/main.go

991 lines
33 KiB
Go

/* WIP Under Construction */
package main
import (
"bytes"
"log"
"os"
"strconv"
"strings"
"text/template"
)
type TmplVars struct {
RouteList []*RouteImpl
RouteGroups []*RouteGroup
AllRouteNames []RouteName
AllRouteMap map[string]int
AllAgentNames []string
AllAgentMap map[string]int
AllAgentMarkNames []string
AllAgentMarks map[string]string
AllAgentMarkIDs map[string]int
AllOSNames []string
AllOSMap map[string]int
}
type RouteName struct {
Plain string
Short string
}
func main() {
log.Println("Generating the router...")
// Load all the routes...
r := &Router{}
routes(r)
tmplVars := TmplVars{
RouteList: r.routeList,
RouteGroups: r.routeGroups,
}
var allRouteNames []RouteName
allRouteMap := make(map[string]int)
var out string
mapIt := func(name string) {
allRouteNames = append(allRouteNames, RouteName{name, strings.Replace(name, "common.", "c.", -1)})
allRouteMap[name] = len(allRouteNames) - 1
}
mapIt("routes.Error")
var indentCache [20]string
countToIndents := func(ind int) string {
out := indentCache[ind]
if out != "" {
return out
}
for i := 0; i < ind; i++ {
out += "\t"
}
if ind < 20 {
indentCache[ind] = out
}
return out
}
o := func(indent int, str string) {
out += countToIndents(indent) + str
}
on := func(indent int, str string) {
out += "\n" + countToIndents(indent) + str
}
iferrn := func(indent int) {
ind := countToIndents(indent)
ind2 := countToIndents(indent + 1)
out += "\n" + ind + "if err != nil {"
out += "\n" + ind2 + "return err\n" + ind + "}"
}
runBefore := func(runnables []Runnable, ind int) {
if len(runnables) > 0 {
for _, runnable := range runnables {
if runnable.Literal {
on(ind, runnable.Contents)
} else {
on(ind, "err = c."+runnable.Contents+"(w,req,user)")
iferrn(ind)
o(ind, "\n")
}
}
}
}
userCheckNano := func(indent int, route *RouteImpl) {
on(indent, "h, err := c.UserCheckNano(w,req,user,cn)")
iferrn(indent)
vcpy := route.Vars
route.Vars = []string{"h"}
route.Vars = append(route.Vars, vcpy...)
}
writeRoute := func(indent int, r *RouteImpl) {
on(indent, "err = "+strings.Replace(r.Name, "common.", "c.", -1)+"(w,req,user")
for _, item := range r.Vars {
out += "," + item
}
out += `)`
}
for _, route := range r.routeList {
mapIt(route.Name)
end := len(route.Path) - 1
on(2, "case \""+route.Path[0:end]+"\":")
//on(3,"id = " + strconv.Itoa(allRouteMap[route.Name]))
runBefore(route.RunBefore, 3)
if !route.Action && !route.NoHead {
userCheckNano(3, route)
}
writeRoute(3, route)
if route.Name != "common.RouteWebsockets" {
on(3, "co.RouteViewCounter.Bump3("+strconv.Itoa(allRouteMap[route.Name])+", cn)")
}
}
prec := NewPrec()
prec.AddSet("MemberOnly", "SuperModOnly", "AdminOnly", "SuperAdminOnly")
// Hoist runnables which appear on every route to the route group to avoid code duplication
dupeMap := make(map[string]int)
//skipRunnableAntiDupe:
for _, g := range r.routeGroups {
for _, route := range g.RouteList {
if len(route.RunBefore) == 0 {
continue //skipRunnableAntiDupe
}
// TODO: What if there are duplicates of the same runnable on this route?
for _, runnable := range route.RunBefore {
dupeMap[runnable.Contents] += 1
}
}
// Unset entries which are already set on the route group
for _, gRunnable := range g.RunBefore {
delete(dupeMap, gRunnable.Contents)
for _, item := range prec.LessThanItem(gRunnable.Contents) {
delete(dupeMap, item)
}
}
for runnable, count := range dupeMap {
if count == len(g.RouteList) {
g.Before(runnable)
}
}
// This method is optimised in the compiler to do a bulk delete
for name, _ := range dupeMap {
delete(dupeMap, name)
}
}
for _, group := range r.routeGroups {
end := len(group.Path) - 1
on(2, "case \""+group.Path[0:end]+"\":")
runBefore(group.RunBefore, 3)
on(3, "switch(req.URL.Path) {")
defaultRoute := blankRoute()
for _, route := range group.RouteList {
if group.Path == route.Path {
defaultRoute = route
continue
}
mapIt(route.Name)
on(4, "case \""+route.Path+"\":")
//on(5,"id = " + strconv.Itoa(allRouteMap[route.Name]))
if len(route.RunBefore) > 0 {
skipRunnable:
for _, runnable := range route.RunBefore {
for _, gRunnable := range group.RunBefore {
if gRunnable.Contents == runnable.Contents {
continue skipRunnable
}
if prec.GreaterThan(gRunnable.Contents, runnable.Contents) {
continue skipRunnable
}
}
if runnable.Literal {
on(5, runnable.Contents)
} else {
on(5, "err = c."+runnable.Contents+"(w,req,user)")
iferrn(5)
on(5, "")
}
}
}
if !route.Action && !route.NoHead && !group.NoHead {
userCheckNano(5, route)
}
writeRoute(5, route)
on(5, "co.RouteViewCounter.Bump3("+strconv.Itoa(allRouteMap[route.Name])+", cn)")
}
if defaultRoute.Name != "" {
mapIt(defaultRoute.Name)
on(4, "default:")
//on(5,"id = " + strconv.Itoa(allRouteMap[defaultRoute.Name]))
runBefore(defaultRoute.RunBefore, 4)
if !defaultRoute.Action && !defaultRoute.NoHead && !group.NoHead {
userCheckNano(5, defaultRoute)
}
writeRoute(5, defaultRoute)
on(5, "co.RouteViewCounter.Bump3("+strconv.Itoa(allRouteMap[defaultRoute.Name])+", cn)")
}
on(3, "}")
}
// Stubs for us to refer to these routes through
mapIt("routes.DynamicRoute")
mapIt("routes.UploadedFile")
mapIt("routes.StaticFile")
mapIt("routes.RobotsTxt")
mapIt("routes.SitemapXml")
mapIt("routes.OpenSearchXml")
mapIt("routes.Favicon")
mapIt("routes.BadRoute")
mapIt("routes.HTTPSRedirect")
tmplVars.AllRouteNames = allRouteNames
tmplVars.AllRouteMap = allRouteMap
tmplVars.AllOSNames = []string{
"unknown",
"windows",
"linux",
"mac",
"android",
"iphone",
}
tmplVars.AllOSMap = make(map[string]int)
for id, os := range tmplVars.AllOSNames {
tmplVars.AllOSMap[os] = id
}
tmplVars.AllAgentNames = []string{
"unknown",
"opera",
"chrome",
"firefox",
"safari",
"edge",
"internetexplorer",
"trident", // Hack to support IE11
"androidchrome",
"mobilesafari",
"samsung",
"ucbrowser",
"googlebot",
"yandex",
"bing",
"slurp",
"exabot",
"mojeek",
"cliqz",
"qwant",
"datenbank",
"baidu",
"sogou",
"toutiao",
"haosou",
"duckduckgo",
"seznambot",
"discord",
"telegram",
"twitter",
"facebook",
"cloudflare",
"archive_org",
"uptimebot",
"slackbot",
"apple",
"discourse",
"xenforo",
"mattermost",
"alexa",
"lynx",
"blank",
"malformed",
"suspicious",
"semrush",
"dotbot",
"ahrefs",
"proximic",
"megaindex",
"majestic",
"cocolyze",
"babbar",
"surdotly",
"domcop",
"netcraft",
"seostar",
"pandalytics",
"blexbot",
"wappalyzer",
"twingly",
"linkfluence",
"pagething",
"burf",
"aspiegel",
"mail_ru",
"ccbot",
"yacy",
"zgrab",
"cloudsystemnetworks",
"maui",
"curl",
"python",
//"go",
"headlesschrome",
"awesome_bot",
}
tmplVars.AllAgentMap = make(map[string]int)
for id, agent := range tmplVars.AllAgentNames {
tmplVars.AllAgentMap[agent] = id
}
tmplVars.AllAgentMarkNames = []string{}
tmplVars.AllAgentMarks = map[string]string{}
// Add agent marks
a := func(mark, agent string) {
tmplVars.AllAgentMarkNames = append(tmplVars.AllAgentMarkNames, mark)
tmplVars.AllAgentMarks[mark] = agent
}
a("OPR", "opera")
a("Chrome", "chrome")
a("Firefox", "firefox")
a("Safari", "safari")
a("MSIE", "internetexplorer")
a("Trident", "trident") // Hack to support IE11
a("Edge", "edge")
a("Lynx", "lynx") // There's a rare android variant of lynx which isn't covered by this
a("SamsungBrowser", "samsung")
a("UCBrowser", "ucbrowser")
a("Google", "googlebot")
a("Googlebot", "googlebot")
a("yandex", "yandex") // from the URL
a("DuckDuckBot", "duckduckgo")
a("DuckDuckGo", "duckduckgo")
a("Baiduspider", "baidu")
a("Sogou", "sogou")
a("ToutiaoSpider", "toutiao")
a("Bytespider", "toutiao")
a("360Spider", "haosou")
a("bingbot", "bing")
a("BingPreview", "bing")
a("msnbot", "bing")
a("Slurp", "slurp")
a("Exabot", "exabot")
a("MojeekBot", "mojeek")
a("Cliqzbot", "cliqz")
a("Qwantify", "qwant")
a("netEstate", "datenbank")
a("SeznamBot", "seznambot")
a("CloudFlare", "cloudflare") // Track alwayson specifically in case there are other bots?
a("archive", "archive_org") //archive.org_bot
a("Uptimebot", "uptimebot")
a("Slackbot", "slackbot")
a("Slack", "slackbot")
a("Discordbot", "discord")
a("TelegramBot", "telegram")
a("Twitterbot", "twitter")
a("facebookexternalhit", "facebook")
a("Facebot", "facebook")
a("Applebot", "apple")
a("Discourse", "discourse")
a("XenForo", "xenforo")
a("mattermost", "mattermost")
a("ia_archiver", "alexa")
a("SemrushBot", "semrush")
a("DotBot", "dotbot")
a("AhrefsBot", "ahrefs")
a("proximic", "proximic")
a("MegaIndex", "megaindex")
a("MJ12bot", "majestic") // TODO: This isn't matching bots out in the wild
a("mj12bot", "majestic")
a("Cocolyzebot", "cocolyze")
a("Barkrowler", "babbar")
a("SurdotlyBot", "surdotly")
a("DomCopBot", "domcop")
a("NetcraftSurveyAgent", "netcraft")
a("seostar", "seostar")
a("Pandalytics", "pandalytics")
a("BLEXBot", "blexbot")
a("Wappalyzer", "wappalyzer")
a("Twingly", "twingly")
a("linkfluence", "linkfluence")
a("PageThing", "pagething")
a("Burf", "burf")
a("AspiegelBot", "aspiegel")
a("PetalBot", "aspiegel")
a("RU_Bot", "mail_ru") // Mail.RU_Bot
a("CCBot", "ccbot")
a("yacybot", "yacy")
a("zgrab", "zgrab")
a("Nimbostratus", "cloudsystemnetworks")
a("MauiBot", "maui")
a("curl", "curl")
a("python", "python")
//a("Go", "go") // yacy has java as part of it's UA, try to avoid hitting crawlers written in go
a("HeadlessChrome", "headlesschrome")
a("awesome_bot", "awesome_bot")
// TODO: Detect Adsbot/3.1, it has a similar user agent to Google's Adsbot, but it is different. No Google fragments.
tmplVars.AllAgentMarkIDs = make(map[string]int)
for mark, agent := range tmplVars.AllAgentMarks {
tmplVars.AllAgentMarkIDs[mark] = tmplVars.AllAgentMap[agent]
}
fileData := `// Code generated by Gosora's Router Generator. DO NOT EDIT.
/* This file was automatically generated by the software. Please don't edit it as your changes may be overwritten at any moment. */
package main
import (
"strings"
//"bytes"
"strconv"
"compress/gzip"
"sync/atomic"
"errors"
"net/http"
c "git.tuxpa.in/a/gosora/common"
co "git.tuxpa.in/a/gosora/common/counters"
"git.tuxpa.in/a/gosora/uutils"
"git.tuxpa.in/a/gosora/routes"
"git.tuxpa.in/a/gosora/routes/panel"
//"github.com/andybalholm/brotli"
)
var ErrNoRoute = errors.New("That route doesn't exist.")
// TODO: What about the /uploads/ route? x.x
var RouteMap = map[string]interface{}{ {{range .AllRouteNames}}
"{{.Plain}}": {{.Short}},{{end}}
}
// ! NEVER RELY ON THESE REMAINING THE SAME BETWEEN COMMITS
var routeMapEnum = map[string]int{ {{range $index, $el := .AllRouteNames}}
"{{$el.Plain}}": {{$index}},{{end}}
}
var reverseRouteMapEnum = map[int]string{ {{range $index, $el := .AllRouteNames}}
{{$index}}: "{{$el.Plain}}",{{end}}
}
var osMapEnum = map[string]int{ {{range $index, $el := .AllOSNames}}
"{{$el}}": {{$index}},{{end}}
}
var reverseOSMapEnum = map[int]string{ {{range $index, $el := .AllOSNames}}
{{$index}}: "{{$el}}",{{end}}
}
var agentMapEnum = map[string]int{ {{range $index, $el := .AllAgentNames}}
"{{$el}}": {{$index}},{{end}}
}
var reverseAgentMapEnum = map[int]string{ {{range $index, $el := .AllAgentNames}}
{{$index}}: "{{$el}}",{{end}}
}
var markToAgent = map[string]string{ {{range $index, $el := .AllAgentMarkNames}}
"{{$el}}": "{{index $.AllAgentMarks $el}}",{{end}}
}
var markToID = map[string]int{ {{range $index, $el := .AllAgentMarkNames}}
"{{$el}}": {{index $.AllAgentMarkIDs $el}},{{end}}
}
/*var agentRank = map[string]int{
"opera":9,
"chrome":8,
"safari":1,
}*/
// HTTPSRedirect is a connection handler which redirects all HTTP requests to HTTPS
type HTTPSRedirect struct {}
func (red *HTTPSRedirect) ServeHTTP(w http.ResponseWriter, req *http.Request) {
w.Header().Set("Connection", "close")
co.RouteViewCounter.Bump({{index .AllRouteMap "routes.HTTPSRedirect"}})
dest := "https://" + req.Host + req.URL.String()
http.Redirect(w, req, dest, http.StatusTemporaryRedirect)
}
func (r *GenRouter) SuspiciousRequest(req *http.Request, pre string) {
if c.Config.DisableSuspLog {
return
}
var sb strings.Builder
if pre != "" {
sb.WriteString("Suspicious Request\n")
} else {
pre = "Suspicious Request"
}
r.ddumpRequest(req,pre,r.suspLog,&sb)
co.AgentViewCounter.Bump({{.AllAgentMap.suspicious}})
}
// TODO: Pass the default path or config struct to the router rather than accessing it via a package global
// TODO: SetDefaultPath
// TODO: GetDefaultPath
func (r *GenRouter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
malformedRequest := func(typ int) {
w.WriteHeader(200) // 400
w.Write([]byte(""))
r.DumpRequest(req,"Malformed Request T"+strconv.Itoa(typ))
co.AgentViewCounter.Bump({{.AllAgentMap.malformed}})
}
// Split the Host and Port string
var shost, sport string
if req.Host[0]=='[' {
spl := strings.Split(req.Host,"]")
if len(spl) > 2 {
malformedRequest(0)
return
}
shost = strings.TrimPrefix(spl[0],"[")
sport = strings.TrimPrefix(spl[1],":")
} else if strings.Contains(req.Host,":") {
spl := strings.Split(req.Host,":")
if len(spl) > 2 {
malformedRequest(1)
return
}
shost = spl[0]
//if len(spl)==2 {
sport = spl[1]
//}
} else {
shost = req.Host
}
// TODO: Reject requests from non-local IPs, if the site host is set to localhost or a localhost IP
if !c.Config.LoosePort && c.Site.PortInt != 80 && c.Site.PortInt != 443 && sport != c.Site.Port {
malformedRequest(2)
return
}
// Redirect www. and local IP requests to the right place
if strings.HasPrefix(shost, "www.") || c.Site.LocalHost {
if shost == "www." + c.Site.Host || (c.Site.LocalHost && shost != c.Site.Host && isLocalHost(shost)) {
// TODO: Abstract the redirect logic?
w.Header().Set("Connection", "close")
var s, p string
if c.Config.SslSchema {
s = "s"
}
if c.Site.PortInt != 80 && c.Site.PortInt != 443 {
p = ":"+c.Site.Port
}
dest := "http"+s+"://" + c.Site.Host+p + req.URL.Path
if len(req.URL.RawQuery) > 0 {
dest += "?" + req.URL.RawQuery
}
http.Redirect(w, req, dest, http.StatusMovedPermanently)
return
}
}
// Deflect malformed requests
if len(req.URL.Path) == 0 || req.URL.Path[0] != '/' || (!c.Config.LooseHost && shost != c.Site.Host) {
malformedRequest(3)
return
}
r.suspScan(req)
// Indirect the default route onto a different one
if req.URL.Path == "/" {
req.URL.Path = c.Config.DefaultPath
}
//log.Print("URL.Path: ", req.URL.Path)
prefix := req.URL.Path[0:strings.IndexByte(req.URL.Path[1:],'/') + 1]
// TODO: Use the same hook table as downstream
hTbl := c.GetHookTable()
skip, ferr := c.H_router_after_filters_hook(hTbl, w, req, prefix)
if skip || ferr != nil {
return
}
if prefix != "/ws" {
h := w.Header()
h.Set("X-Frame-Options", "deny")
h.Set("X-XSS-Protection", "1; mode=block") // TODO: Remove when we add a CSP? CSP's are horrendously glitchy things, tread with caution before removing
h.Set("X-Content-Type-Options", "nosniff")
if c.Config.RefNoRef || !c.Config.SslSchema {
h.Set("Referrer-Policy","no-referrer")
} else {
h.Set("Referrer-Policy","strict-origin")
}
h.Set("Permissions-Policy","interest-cohort=()")
}
if c.Dev.SuperDebug {
r.DumpRequest(req,"before routes.StaticFile")
}
// Increment the request counter
if !c.Config.DisableAnalytics {
co.GlobalViewCounter.Bump()
}
if prefix == "/s" { //old prefix: /static
if !c.Config.DisableAnalytics {
co.RouteViewCounter.Bump({{index .AllRouteMap "routes.StaticFile"}})
}
routes.StaticFile(w, req)
return
}
// TODO: Handle JS routes
if atomic.LoadInt32(&c.IsDBDown) == 1 {
c.DatabaseError(w, req)
return
}
if c.Dev.SuperDebug {
r.reqLogger.Print("before PreRoute")
}
/*if c.Dev.QuicPort != 0 {
sQuicPort := strconv.Itoa(c.Dev.QuicPort)
w.Header().Set("Alt-Svc", "quic=\":"+sQuicPort+"\"; ma=2592000; v=\"44,43,39\", h3-23=\":"+sQuicPort+"\"; ma=3600, h3-24=\":"+sQuicPort+"\"; ma=3600, h2=\":443\"; ma=3600")
}*/
// Track the user agents. Unfortunately, everyone pretends to be Mozilla, so this'll be a little less efficient than I would like.
// TODO: Add a setting to disable this?
// TODO: Use a more efficient detector instead of smashing every possible combination in
// TODO: Make this testable
var agent int
if !c.Config.DisableAnalytics {
ua := strings.TrimSpace(strings.Replace(strings.TrimPrefix(req.UserAgent(),"Mozilla/5.0 ")," Safari/537.36","",-1)) // Noise, no one's going to be running this and it would require some sort of agent ranking system to determine which identifier should be prioritised over another
if ua == "" {
co.AgentViewCounter.Bump({{.AllAgentMap.blank}})
r.unknownUA(req)
} else {
// WIP UA Parser
//var ii = uaBufPool.Get()
var buf []byte
//if ii != nil {
// buf = ii.([]byte)
//}
var items []string
var os int
for _, it := range uutils.StringToBytes(ua) {
if (it > 64 && it < 91) || (it > 96 && it < 123) || (it > 47 && it < 58) || it == '_' {
// TODO: Store an index and slice that instead?
buf = append(buf, it)
} else if it == ' ' || it == '(' || it == ')' || it == '-' || it == ';' || it == ':' || it == '.' || it == '+' || it == '~' || it == '@' /*|| (it == ':' && bytes.Equal(buf,[]byte("http")))*/ || it == ',' || it == '/' {
//log.Print("buf: ",string(buf))
//log.Print("it: ",string(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(buf)) {
case "Windows":
os = {{.AllOSMap.windows}}
case "Linux":
os = {{.AllOSMap.linux}}
case "Mac":
os = {{.AllOSMap.mac}}
case "iPhone":
os = {{.AllOSMap.iphone}}
case "Android":
os = {{.AllOSMap.android}}
case "like","compatible","NT","X","com","KHTML":
// Skip these words
default:
//log.Print("append buf")
items = append(items, string(buf))
}
}
//log.Print("reset buf")
buf = buf[:0]
}
} else {
// TODO: Test this
items = items[:0]
if c.Config.DisableSuspLog {
r.reqLogger.Print("Illegal char "+strconv.Itoa(int(it))+" in UA\nUA Buf: ", buf,"\nUA Buf String: ", string(buf))
} else {
r.SuspiciousRequest(req,"Illegal char "+strconv.Itoa(int(it))+" in UA")
r.reqLogger.Print("UA Buf: ", buf,"\nUA 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-- {
//fAgent, ok := markToAgent[items[i]]
fAgent, ok := markToID[items[i]]
if ok {
agent = fAgent
if agent != {{.AllAgentMap.safari}} {
break
}
}
}
if c.Dev.SuperDebug {
r.reqLogger.Print("parsed agent: ", agent,"\nos: ", os)
r.reqLogger.Printf("items: %+v\n",items)
/*for _, it := range items {
r.reqLogger.Printf("it: %+v\n",string(it))
}*/
}
// Special handling
switch(agent) {
case {{.AllAgentMap.chrome}}:
if os == {{.AllOSMap.android}} {
agent = {{.AllAgentMap.androidchrome}}
}
case {{.AllAgentMap.safari}}:
if os == {{.AllOSMap.iphone}} {
agent = {{.AllAgentMap.mobilesafari}}
}
case {{.AllAgentMap.trident}}:
// Hack to support IE11, change this after we start logging versions
if strings.Contains(ua,"rv:11") {
agent = {{.AllAgentMap.internetexplorer}}
}
case {{.AllAgentMap.zgrab}}:
w.WriteHeader(200) // 400
w.Write([]byte(""))
r.DumpRequest(req,"Blocked Scanner")
co.AgentViewCounter.Bump({{.AllAgentMap.zgrab}})
return
}
if agent == 0 {
//co.AgentViewCounter.Bump({{.AllAgentMap.unknown}})
r.unknownUA(req)
}// else {
//co.AgentViewCounter.Bump(agentMapEnum[agent])
co.AgentViewCounter.Bump(agent)
//}
co.OSViewCounter.Bump(os)
}
// TODO: Do we want to track missing language headers too? Maybe as it's own type, e.g. "noheader"?
// TODO: Default to anything other than en, if anything else is present, to avoid over-representing it for multi-linguals?
lang := req.Header.Get("Accept-Language")
if lang != "" {
// TODO: Reduce allocs here
lLang := strings.Split(strings.TrimSpace(lang),"-")
tLang := strings.Split(strings.Split(lLang[0],";")[0],",")
c.DebugDetail("tLang:", tLang)
var llLang string
for _, seg := range tLang {
if seg == "*" {
continue
}
llLang = seg
break
}
c.DebugDetail("llLang:", llLang)
if !co.LangViewCounter.Bump(llLang) {
r.DumpRequest(req,"Invalid ISO Code")
}
} else {
co.LangViewCounter.Bump2(0)
}
if !c.Config.RefNoTrack {
ae := req.Header.Get("Accept-Encoding")
likelyBot := ae == "gzip" || ae == ""
if !likelyBot {
ref := req.Header.Get("Referer") // Check the 'referrer' header too? :P
// TODO: Extend the effects of DNT elsewhere?
if ref != "" && req.Header.Get("DNT") != "1" {
// ? Optimise this a little?
ref = strings.TrimPrefix(strings.TrimPrefix(ref,"http://"),"https://")
ref = strings.Split(ref,"/")[0]
portless := strings.Split(ref,":")[0]
// TODO: Handle c.Site.Host in uppercase too?
if portless != "localhost" && portless != "127.0.0.1" && portless != c.Site.Host {
r.DumpRequest(req,"Ref Route")
co.ReferrerTracker.Bump(ref)
}
}
}
}
}
// Deal with the session stuff, etc.
ucpy, ok := c.PreRoute(w, req)
if !ok {
return
}
user := &ucpy
user.LastAgent = agent
if c.Dev.SuperDebug {
r.reqLogger.Print(
"after PreRoute\n" +
"routeMapEnum: ", routeMapEnum)
}
//log.Println("req: ", req)
// Disable Gzip when SSL is disabled for security reasons?
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()
var igzw *gzip.Writer
if ii == nil {
igzw = gzip.NewWriter(w)
} else {
igzw = ii.(*gzip.Writer)
igzw.Reset(w)
}
gzw := c.GzipResponseWriter{Writer: igzw, ResponseWriter: w}
defer func() {
//h := w.Header()
if h.Get("Content-Encoding") == "gzip" && h.Get("X-I") == "" {
//log.Print("push gzip close")
igzw := gzw.Writer.(*gzip.Writer)
igzw.Close()
gzipPool.Put(igzw)
}
}()
w = gzw
}
}
skip, ferr = c.H_router_pre_route_hook(hTbl, w, req, user, prefix)
if skip || ferr != nil {
r.handleError(ferr,w,req,user)
return
}
var extraData string
if req.URL.Path[len(req.URL.Path) - 1] != '/' {
extraData = req.URL.Path[strings.LastIndexByte(req.URL.Path,'/') + 1:]
req.URL.Path = req.URL.Path[:strings.LastIndexByte(req.URL.Path,'/') + 1]
}
ferr = r.routeSwitch(w, req, user, prefix, extraData)
if ferr != nil {
r.handleError(ferr,w,req,user)
return
}
/*if !c.Config.DisableAnalytics {
co.RouteViewCounter.Bump(id)
}*/
hTbl.VhookNoRet("router_end", w, req, user, prefix, extraData)
//c.StoppedServer("Profile end")
}
func (r *GenRouter) routeSwitch(w http.ResponseWriter, req *http.Request, user *c.User, prefix, extraData string) /*(id int, orerr */c.RouteError/*)*/ {
var err c.RouteError
cn := uutils.Nanotime()
switch(prefix) {` + out + `
/*case "/sitemaps": // TODO: Count these views
req.URL.Path += extraData
err = sitemapSwitch(w,req)*/
// ! Temporary fix for certain bots
case "/static":
w.Header().Set("Connection", "close")
http.Redirect(w, req, "/s/"+extraData, http.StatusTemporaryRedirect)
case "/uploads":
if extraData == "" {
co.RouteViewCounter.Bump3({{index .AllRouteMap "routes.UploadedFile"}}, cn)
return c.NotFound(w,req,nil)
}
w = r.responseWriter(w)
req.URL.Path += extraData
// TODO: Find a way to propagate errors up from this?
r.UploadHandler(w,req) // TODO: Count these views
co.RouteViewCounter.Bump3({{index .AllRouteMap "routes.UploadedFile"}}, cn)
return nil
case "":
// Stop the favicons, robots.txt file, etc. resolving to the topics list
// TODO: Add support for favicons and robots.txt files
switch(extraData) {
case "robots.txt":
co.RouteViewCounter.Bump3({{index .AllRouteMap "routes.RobotsTxt"}}, cn)
return routes.RobotsTxt(w,req)
case "favicon.ico":
w = r.responseWriter(w)
req.URL.Path = "/s/favicon.ico"
co.RouteViewCounter.Bump3({{index .AllRouteMap "routes.Favicon"}}, cn)
routes.StaticFile(w,req)
return nil
case "opensearch.xml":
co.RouteViewCounter.Bump3({{index .AllRouteMap "routes.OpenSearchXml"}}, cn)
return routes.OpenSearchXml(w,req)
/*case "sitemap.xml":
co.RouteViewCounter.Bump3({{index .AllRouteMap "routes.SitemapXml"}}, cn)
return routes.SitemapXml(w,req)*/
}
co.RouteViewCounter.Bump({{index .AllRouteMap "routes.Error"}})
return c.NotFound(w,req,nil)
default:
// A fallback for dynamic routes, e.g. ones declared by plugins
r.RLock()
h, ok := r.extraRoutes[req.URL.Path]
r.RUnlock()
req.URL.Path += extraData
if ok {
// TODO: Be more specific about *which* dynamic route it is
co.RouteViewCounter.Bump({{index .AllRouteMap "routes.DynamicRoute"}})
return h(w,req,user)
}
co.RouteViewCounter.Bump3({{index .AllRouteMap "routes.BadRoute"}}, cn)
if !c.Config.DisableSuspLog {
lp := strings.ToLower(req.URL.Path)
if strings.Contains(lp,"w") {
if strings.Contains(lp,"wp") || strings.Contains(lp,"wordpress") || strings.Contains(lp,"wget") || strings.Contains(lp,"wp-") {
r.SuspiciousRequest(req,"Bad Route")
return c.MicroNotFound(w,req)
}
}
if strings.Contains(lp,"admin") || strings.Contains(lp,"sql") || strings.Contains(lp,"manage") || strings.Contains(lp,"//") || strings.Contains(lp,"\\\\") || strings.Contains(lp,"config") || strings.Contains(lp,"setup") || strings.Contains(lp,"install") || strings.Contains(lp,"update") || strings.Contains(lp,"php") || strings.Contains(lp,"pl") || strings.Contains(lp,"include") || strings.Contains(lp,"vendor") || strings.Contains(lp,"bin") || strings.Contains(lp,"system") || strings.Contains(lp,"eval") || strings.Contains(lp,"config") {
r.SuspiciousRequest(req,"Bad Route")
return c.MicroNotFound(w,req)
}
}
if !c.Config.DisableBadRouteLog {
r.DumpRequest(req,"Bad Route")
}
ae := req.Header.Get("Accept-Encoding")
likelyBot := ae == "gzip" || ae == ""
if likelyBot {
return c.MicroNotFound(w,req)
}
return c.NotFound(w,req,nil)
}
return err
}
`
tmpl := template.Must(template.New("router").Parse(fileData))
var b bytes.Buffer
if err := tmpl.Execute(&b, tmplVars); err != nil {
log.Fatal(err)
}
writeFile("./gen_router.go", b.String())
log.Println("Successfully generated the router")
}
func writeFile(name, content string) {
f, e := os.Create(name)
if e != nil {
log.Fatal(e)
}
_, e = f.WriteString(content)
if e != nil {
log.Fatal(e)
}
if e = f.Sync(); e != nil {
log.Fatal(e)
}
if e = f.Close(); e != nil {
log.Fatal(e)
}
}