gosora/routes_common.go

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package main
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import (
"html"
"html/template"
"log"
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"net"
"net/http"
"strings"
)
// nolint
var PreRoute func(http.ResponseWriter, *http.Request) (User, bool) = preRoute
// TODO: Come up with a better middleware solution
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// nolint We need these types so people can tell what they are without scrolling to the bottom of the file
var PanelUserCheck func(http.ResponseWriter, *http.Request, *User) (*HeaderVars, PanelStats, RouteError) = panelUserCheck
var SimplePanelUserCheck func(http.ResponseWriter, *http.Request, *User) (*HeaderLite, RouteError) = simplePanelUserCheck
var SimpleForumUserCheck func(w http.ResponseWriter, r *http.Request, user *User, fid int) (headerLite *HeaderLite, err RouteError) = simpleForumUserCheck
var ForumUserCheck func(w http.ResponseWriter, r *http.Request, user *User, fid int) (headerVars *HeaderVars, err RouteError) = forumUserCheck
var MemberCheck func(w http.ResponseWriter, r *http.Request, user *User) (headerVars *HeaderVars, err RouteError) = memberCheck
var SimpleUserCheck func(w http.ResponseWriter, r *http.Request, user *User) (headerLite *HeaderLite, err RouteError) = simpleUserCheck
var UserCheck func(w http.ResponseWriter, r *http.Request, user *User) (headerVars *HeaderVars, err RouteError) = userCheck
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// This is mostly for errors.go, please create *HeaderVars on the spot instead of relying on this or the atomic store underlying it, if possible
// TODO: Write a test for this
func getDefaultHeaderVar() *HeaderVars {
return &HeaderVars{Site: site, ThemeName: fallbackTheme}
}
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// TODO: Support for left sidebars and sidebars on both sides
// http.Request is for context.Context middleware. Mostly for plugin_socialgroups right now
func BuildWidgets(zone string, data interface{}, headerVars *HeaderVars, r *http.Request) {
if vhooks["intercept_build_widgets"] != nil {
if runVhook("intercept_build_widgets", zone, data, headerVars, r).(bool) {
return
}
}
//log.Print("themes[headerVars.ThemeName].Sidebars",themes[headerVars.ThemeName].Sidebars)
if themes[headerVars.ThemeName].Sidebars == "right" {
if len(docks.RightSidebar) != 0 {
var sbody string
for _, widget := range docks.RightSidebar {
if widget.Enabled {
if widget.Location == "global" || widget.Location == zone {
sbody += widget.Body
}
}
}
headerVars.Widgets.RightSidebar = template.HTML(sbody)
}
}
}
func simpleForumUserCheck(w http.ResponseWriter, r *http.Request, user *User, fid int) (headerLite *HeaderLite, rerr RouteError) {
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if !fstore.Exists(fid) {
return nil, PreError("The target forum doesn't exist.", w, r)
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}
// Is there a better way of doing the skip AND the success flag on this hook like multiple returns?
if vhookSkippable["simple_forum_check_pre_perms"] != nil {
var skip bool
skip, rerr = runVhookSkippable("simple_forum_check_pre_perms", w, r, user, &fid, &headerLite)
if skip {
return headerLite, rerr
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}
}
fperms, err := fpstore.Get(fid, user.Group)
if err != nil {
// TODO: Refactor this
log.Printf("Unable to get the forum perms for Group #%d for User #%d", user.Group, user.ID)
return nil, PreError("Something weird happened", w, r)
}
cascadeForumPerms(fperms, user)
return headerLite, nil
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}
func forumUserCheck(w http.ResponseWriter, r *http.Request, user *User, fid int) (headerVars *HeaderVars, rerr RouteError) {
headerVars, rerr = UserCheck(w, r, user)
if rerr != nil {
return headerVars, rerr
}
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if !fstore.Exists(fid) {
return headerVars, NotFound(w, r)
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}
if vhookSkippable["forum_check_pre_perms"] != nil {
var skip bool
skip, rerr = runVhookSkippable("forum_check_pre_perms", w, r, user, &fid, &headerVars)
if skip {
return headerVars, rerr
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}
}
fperms, err := fpstore.Get(fid, user.Group)
if err != nil {
// TODO: Refactor this
log.Printf("Unable to get the forum perms for Group #%d for User #%d", user.Group, user.ID)
return nil, PreError("Something weird happened", w, r)
}
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//log.Printf("user.Perms: %+v\n", user.Perms)
//log.Printf("fperms: %+v\n", fperms)
cascadeForumPerms(fperms, user)
return headerVars, rerr
}
// TODO: Put this on the user instance? Do we really want forum specific logic in there? Maybe, a method which spits a new pointer with the same contents as user?
func cascadeForumPerms(fperms ForumPerms, user *User) {
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if fperms.Overrides && !user.IsSuperAdmin {
user.Perms.ViewTopic = fperms.ViewTopic
user.Perms.LikeItem = fperms.LikeItem
user.Perms.CreateTopic = fperms.CreateTopic
user.Perms.EditTopic = fperms.EditTopic
user.Perms.DeleteTopic = fperms.DeleteTopic
user.Perms.CreateReply = fperms.CreateReply
user.Perms.EditReply = fperms.EditReply
user.Perms.DeleteReply = fperms.DeleteReply
user.Perms.PinTopic = fperms.PinTopic
user.Perms.CloseTopic = fperms.CloseTopic
if len(fperms.ExtData) != 0 {
for name, perm := range fperms.ExtData {
user.PluginPerms[name] = perm
}
}
}
}
// Even if they have the right permissions, the control panel is only open to supermods+. There are many areas without subpermissions which assume that the current user is a supermod+ and admins are extremely unlikely to give these permissions to someone who isn't at-least a supermod to begin with
// TODO: Do a panel specific theme?
func panelUserCheck(w http.ResponseWriter, r *http.Request, user *User) (headerVars *HeaderVars, stats PanelStats, rerr RouteError) {
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var themeName = defaultThemeBox.Load().(string)
cookie, err := r.Cookie("current_theme")
if err == nil {
cookie := html.EscapeString(cookie.Value)
theme, ok := themes[cookie]
if ok && !theme.HideFromThemes {
themeName = cookie
}
}
headerVars = &HeaderVars{
Site: site,
Settings: settingBox.Load().(SettingBox),
Themes: themes,
ThemeName: themeName,
}
// TODO: We should probably initialise headerVars.ExtData
headerVars.Stylesheets = append(headerVars.Stylesheets, headerVars.ThemeName+"/panel.css")
if len(themes[headerVars.ThemeName].Resources) > 0 {
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rlist := themes[headerVars.ThemeName].Resources
for _, resource := range rlist {
if resource.Location == "global" || resource.Location == "panel" {
extarr := strings.Split(resource.Name, ".")
ext := extarr[len(extarr)-1]
if ext == "css" {
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headerVars.Stylesheets = append(headerVars.Stylesheets, resource.Name)
} else if ext == "js" {
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headerVars.Scripts = append(headerVars.Scripts, resource.Name)
}
}
}
}
err = groupCountStmt.QueryRow().Scan(&stats.Groups)
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if err != nil {
return headerVars, stats, InternalError(err, w, r)
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}
stats.Users = users.GlobalCount()
stats.Forums = fstore.GlobalCount() // TODO: Stop it from showing the blanked forums
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stats.Settings = len(headerVars.Settings)
stats.WordFilters = len(wordFilterBox.Load().(WordFilterBox))
stats.Themes = len(themes)
stats.Reports = 0 // TODO: Do the report count. Only show open threads?
pusher, ok := w.(http.Pusher)
if ok {
pusher.Push("/static/"+headerVars.ThemeName+"/main.css", nil)
pusher.Push("/static/"+headerVars.ThemeName+"/panel.css", nil)
pusher.Push("/static/global.js", nil)
pusher.Push("/static/jquery-3.1.1.min.js", nil)
// TODO: Push the theme CSS files
// TODO: Push the theme scripts
// TODO: Push avatars?
}
return headerVars, stats, nil
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}
func simplePanelUserCheck(w http.ResponseWriter, r *http.Request, user *User) (headerLite *HeaderLite, rerr RouteError) {
return &HeaderLite{
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Site: site,
Settings: settingBox.Load().(SettingBox),
}, nil
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}
// TODO: Add this to the member routes
func memberCheck(w http.ResponseWriter, r *http.Request, user *User) (headerVars *HeaderVars, rerr RouteError) {
headerVars, rerr = UserCheck(w, r, user)
if !user.Loggedin {
return headerVars, NoPermissions(w, r, *user)
}
return headerVars, rerr
}
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// SimpleUserCheck is back from the grave, yay :D
func simpleUserCheck(w http.ResponseWriter, r *http.Request, user *User) (headerLite *HeaderLite, rerr RouteError) {
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headerLite = &HeaderLite{
Site: site,
Settings: settingBox.Load().(SettingBox),
}
return headerLite, nil
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}
// TODO: Add the ability for admins to restrict certain themes to certain groups?
func userCheck(w http.ResponseWriter, r *http.Request, user *User) (headerVars *HeaderVars, rerr RouteError) {
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var themeName = defaultThemeBox.Load().(string)
cookie, err := r.Cookie("current_theme")
if err == nil {
cookie := html.EscapeString(cookie.Value)
theme, ok := themes[cookie]
if ok && !theme.HideFromThemes {
themeName = cookie
}
}
headerVars = &HeaderVars{
Site: site,
Settings: settingBox.Load().(SettingBox),
Themes: themes,
ThemeName: themeName,
}
if user.IsBanned {
headerVars.NoticeList = append(headerVars.NoticeList, "Your account has been suspended. Some of your permissions may have been revoked.")
}
if len(themes[headerVars.ThemeName].Resources) > 0 {
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rlist := themes[headerVars.ThemeName].Resources
for _, resource := range rlist {
if resource.Location == "global" || resource.Location == "frontend" {
extarr := strings.Split(resource.Name, ".")
ext := extarr[len(extarr)-1]
if ext == "css" {
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headerVars.Stylesheets = append(headerVars.Stylesheets, resource.Name)
} else if ext == "js" {
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headerVars.Scripts = append(headerVars.Scripts, resource.Name)
}
}
}
}
pusher, ok := w.(http.Pusher)
if ok {
pusher.Push("/static/"+headerVars.ThemeName+"/main.css", nil)
pusher.Push("/static/global.js", nil)
pusher.Push("/static/jquery-3.1.1.min.js", nil)
// TODO: Push the theme CSS files
// TODO: Push the theme scripts
// TODO: Push avatars?
}
return headerVars, nil
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}
func preRoute(w http.ResponseWriter, r *http.Request) (User, bool) {
user, halt := auth.SessionCheck(w, r)
if halt {
return *user, false
}
if user == &guestUser {
return *user, true
}
host, _, err := net.SplitHostPort(r.RemoteAddr)
if err != nil {
PreError("Bad IP", w, r)
return *user, false
}
if host != user.LastIP {
_, err = updateLastIPStmt.Exec(host, user.ID)
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if err != nil {
InternalError(err, w, r)
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return *user, false
}
user.LastIP = host // ! - Is this racey?
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}
h := w.Header()
h.Set("X-Frame-Options", "deny")
//h.Set("X-XSS-Protection", "1")
// TODO: Set the content policy header
return *user, true
}
// SuperModeOnly makes sure that only super mods or higher can access the panel routes
func SuperModOnly(w http.ResponseWriter, r *http.Request, user User) RouteError {
if !user.IsSuperMod {
return NoPermissions(w, r, user)
}
return nil
}