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package web
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import (
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"fmt"
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"mime"
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"io"
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"log"
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"net/http"
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"sort"
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"strings"
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"github.com/bouncepaw/mycorrhiza/cfg"
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"github.com/bouncepaw/mycorrhiza/user"
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"github.com/bouncepaw/mycorrhiza/util"
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"github.com/bouncepaw/mycorrhiza/views"
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)
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// initAdmin sets up /admin routes if auth is used. Call it after you have decided if you want to use auth.
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func initAdmin() {
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if user.AuthUsed {
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http.HandleFunc("/admin", handlerAdmin)
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http.HandleFunc("/admin/shutdown", handlerAdminShutdown)
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http.HandleFunc("/admin/reindex-users", handlerAdminReindexUsers)
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http.HandleFunc("/admin/users/", handlerAdminUsers)
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}
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}
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// handlerAdmin provides the admin panel.
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func handlerAdmin(w http.ResponseWriter, rq *http.Request) {
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util.PrepareRq(rq)
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if user.CanProceed(rq, "admin") {
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w.Header().Set("Content-Type", "text/html;charset=utf-8")
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w.WriteHeader(http.StatusOK)
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_, err := io.WriteString(w, views.BaseHTML("Admin panel", views.AdminPanelHTML(), user.FromRequest(rq)))
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if err != nil {
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log.Println(err)
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}
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}
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}
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// handlerAdminShutdown kills the wiki.
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func handlerAdminShutdown(w http.ResponseWriter, rq *http.Request) {
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util.PrepareRq(rq)
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if user.CanProceed(rq, "admin/shutdown") && rq.Method == "POST" {
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log.Fatal("An admin commanded the wiki to shutdown")
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}
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}
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// handlerAdminReindexUsers reinitialises the user system.
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func handlerAdminReindexUsers(w http.ResponseWriter, rq *http.Request) {
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util.PrepareRq(rq)
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if user.CanProceed(rq, "admin") && rq.Method == "POST" {
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user.ReadUsersFromFilesystem()
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redirectTo := rq.Referer()
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if redirectTo == "" {
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redirectTo = "/hypha/"+cfg.UserHypha
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}
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http.Redirect(w, rq, redirectTo, http.StatusSeeOther)
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}
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}
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func handlerAdminUsers(w http.ResponseWriter, r *http.Request) {
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util.PrepareRq(r)
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if user.CanProceed(r, "admin") {
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path := strings.TrimPrefix(r.URL.Path, "/admin/users")
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parts := strings.Split(path, "/")[1:]
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// Users dashboard
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if len(parts) == 0 {
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// Get a sorted list of users
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var userList []*user.User
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for u := range user.YieldUsers() {
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userList = append(userList, u)
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}
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sort.Slice(userList, func(i, j int) bool {
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less := userList[i].RegisteredAt.Before(userList[j].RegisteredAt)
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return less
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})
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html := views.AdminUsersPanelHTML(userList)
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html = views.BaseHTML("Manage users", html, user.FromRequest(r))
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w.Header().Set("Content-Type", mime.TypeByExtension(".html"))
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if _, err := io.WriteString(w, html); err != nil {
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log.Println(err)
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}
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return
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}
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// User edit page
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if len(parts) == 2 && parts[1] == "edit" {
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u := user.UserByName(parts[0])
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if u != nil && u.Name != "anon" {
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if r.Method == http.MethodGet {
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html := views.AdminUsersUserHTML(u)
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html = views.BaseHTML(fmt.Sprintf("User %s", u.Name), html, user.FromRequest(r))
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w.Header().Set("Content-Type", mime.TypeByExtension(".html"))
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if _, err := io.WriteString(w, html); err != nil {
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log.Println(err)
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}
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return
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} else if r.Method == http.MethodPost {
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oldGroup := u.Group
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newGroup := r.PostFormValue("group")
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if user.ValidGroup(newGroup) {
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u.Group = newGroup
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if err := user.SaveUserDatabase(); err != nil {
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u.Group = oldGroup
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log.Println(err)
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w.WriteHeader(http.StatusInternalServerError)
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io.WriteString(w, err.Error())
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} else {
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http.Redirect(w, r, "/admin/users/", http.StatusSeeOther)
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}
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} else {
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w.WriteHeader(http.StatusBadRequest)
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io.WriteString(w, "invalid group")
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}
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return
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}
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}
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}
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util.HTTP404Page(w, "404 page not found")
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}
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}
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