LDAP modification form

admin.go

@@ -1,12 +1,14 @@
 package main
 
 import (
+	"strings"
 	"fmt"
 	"html/template"
 	"net/http"
 	"sort"
 
 	"github.com/go-ldap/ldap/v3"
+	"github.com/gorilla/mux"
 )
 
 func checkAdminLogin(w http.ResponseWriter, r *http.Request) *LoginStatus {
@@ -30,16 +32,31 @@ func checkAdminLogin(w http.ResponseWriter, r *http.Request) *LoginStatus {
 	return login
 }
 
+type EntryList []*ldap.Entry
+
+func (d EntryList) Len() int {
+	return len(d)
+}
+
+func (d EntryList) Swap(i, j int) {
+	d[i], d[j] = d[j], d[i]
+}
+
+func (d EntryList) Less(i, j int) bool {
+	return d[i].DN < d[j].DN
+}
+
+
 type AdminUsersTplData struct {
 	Login        *LoginStatus
 	UserNameAttr string
-	Users        []*ldap.Entry
+	Users        EntryList
 }
 
 func handleAdminUsers(w http.ResponseWriter, r *http.Request) {
 	templateAdminUsers := template.Must(template.ParseFiles("templates/layout.html", "templates/admin_users.html"))
 
-	login := checkLogin(w, r)
+	login := checkAdminLogin(w, r)
 	if login == nil {
 		return
 	}
@@ -60,22 +77,270 @@ func handleAdminUsers(w http.ResponseWriter, r *http.Request) {
 	data := &AdminUsersTplData{
 		Login:        login,
 		UserNameAttr: config.UserNameAttr,
-		Users:        sr.Entries,
+		Users:        EntryList(sr.Entries),
 	}
-	sort.Sort(data)
+	sort.Sort(data.Users)
 
 	templateAdminUsers.Execute(w, data)
 }
 
-func (d *AdminUsersTplData) Len() int {
+type AdminGroupsTplData struct {
-	return len(d.Users)
+	Login        *LoginStatus
+	GroupNameAttr string
+	Groups        EntryList
 }
 
-func (d *AdminUsersTplData) Swap(i, j int) {
+func handleAdminGroups(w http.ResponseWriter, r *http.Request) {
-	d.Users[i], d.Users[j] = d.Users[j], d.Users[i]
+	templateAdminGroups := template.Must(template.ParseFiles("templates/layout.html", "templates/admin_groups.html"))
+
+	login := checkAdminLogin(w, r)
+	if login == nil {
+		return
 	}
 
-func (d *AdminUsersTplData) Less(i, j int) bool {
+	searchRequest := ldap.NewSearchRequest(
-	return d.Users[i].GetAttributeValue(config.UserNameAttr) <
+		config.GroupBaseDN,
-		d.Users[j].GetAttributeValue(config.UserNameAttr)
+		ldap.ScopeSingleLevel, ldap.NeverDerefAliases, 0, 0, false,
+		fmt.Sprintf("(&(objectClass=groupOfNames))"),
+		[]string{config.GroupNameAttr, "dn", "displayname"},
+		nil)
+
+	sr, err := login.conn.Search(searchRequest)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	data := &AdminGroupsTplData{
+		Login:        login,
+		GroupNameAttr: config.GroupNameAttr,
+		Groups:        EntryList(sr.Entries),
+	}
+	sort.Sort(data.Groups)
+
+	templateAdminGroups.Execute(w, data)
+}
+
+type AdminLDAPTplData struct {
+	DN string
+	Members []string
+	Groups []string
+	Props map[string]*PropValues
+	Children []Child
+	Path []PathItem
+	AddError string
+}
+
+type Child struct {
+	DN string
+	Identifier string
+	DisplayName string
+}
+
+type PathItem struct {
+	DN string
+	Identifier string
+	Active bool
+}
+
+type PropValues struct {
+	Values []string
+	Editable bool
+	ModifySuccess bool
+	ModifyError string
+}
+
+func handleAdminLDAP(w http.ResponseWriter, r *http.Request) {
+	templateAdminLDAP := template.Must(template.ParseFiles("templates/layout.html", "templates/admin_ldap.html"))
+
+	login := checkAdminLogin(w, r)
+	if login == nil {
+		return
+	}
+
+	dn := mux.Vars(r)["dn"]
+
+	modifyAttr := ""
+	modifyError := ""
+	modifySuccess := false
+	addError := ""
+
+	if r.Method == "POST" {
+		r.ParseForm()
+		action := strings.Join(r.Form["action"], "")
+		if action == "modify" {
+			attr := strings.Join(r.Form["attr"], "")
+			values := strings.Split(strings.Join(r.Form["values"], ""), "\n")
+			values_filtered := []string{}
+			for _, v := range values {
+				v2 := strings.TrimSpace(v)
+				if v2 != "" {
+					values_filtered = append(values_filtered, v2)
+				}
+			}
+
+			modifyAttr = attr
+			if len(values_filtered) == 0 {
+				modifyError = "Refusing to delete attribute."
+			} else {
+				modify_request := ldap.NewModifyRequest(dn, nil)
+				modify_request.Replace(attr, values_filtered)
+
+				err := login.conn.Modify(modify_request)
+				if err != nil {
+					modifyError = err.Error()
+				} else {
+					modifySuccess = true
+				}
+			}
+		} else if action == "add" {
+			attr := strings.Join(r.Form["attr"], "")
+			values := strings.Split(strings.Join(r.Form["values"], ""), "\n")
+			values_filtered := []string{}
+			for _, v := range values {
+				v2 := strings.TrimSpace(v)
+				if v2 != "" {
+					values_filtered = append(values_filtered, v2)
+				}
+			}
+
+			modify_request := ldap.NewModifyRequest(dn, nil)
+			modify_request.Add(attr, values_filtered)
+
+			err := login.conn.Modify(modify_request)
+			modifyAttr = attr
+			if err != nil {
+				addError = err.Error()
+			}
+		} else if action == "delete" {
+			attr := strings.Join(r.Form["attr"], "")
+
+			modify_request := ldap.NewModifyRequest(dn, nil)
+			modify_request.Replace(attr, []string{})
+
+			err := login.conn.Modify(modify_request)
+			if err != nil {
+				modifyError = err.Error()
+			}
+		}
+	}
+
+	// Build path
+	path := []PathItem{
+		PathItem{
+			DN: config.BaseDN,
+			Identifier: config.BaseDN,
+			Active: dn == config.BaseDN,
+		},
+	}
+
+	len_base_dn := len(strings.Split(config.BaseDN, ","))
+	dn_split := strings.Split(dn, ",")
+	dn_last_attr := strings.Split(dn_split[0], "=")[0]
+	for i := len_base_dn + 1; i <= len(dn_split); i++ {
+		path = append(path, PathItem{
+			DN: strings.Join(dn_split[len(dn_split)-i:len(dn_split)], ","),
+			Identifier: dn_split[len(dn_split)-i],
+			Active: i == len(dn_split),
+		})
+	}
+
+	// Get object and parse it
+	searchRequest := ldap.NewSearchRequest(
+		dn,
+		ldap.ScopeBaseObject, ldap.NeverDerefAliases, 0, 0, false,
+		fmt.Sprintf("(objectclass=*)"),
+		[]string{},
+		nil)
+
+	sr, err := login.conn.Search(searchRequest)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	if len(sr.Entries) != 1 {
+		http.Error(w, fmt.Sprintf("%d objects found", len(sr.Entries)), http.StatusInternalServerError)
+		return
+	}
+
+	object := sr.Entries[0]
+
+	props := make(map[string]*PropValues)
+	for _, attr := range object.Attributes {
+		if attr.Name != dn_last_attr {
+			if existing, ok := props[attr.Name]; ok {
+				existing.Values = append(existing.Values, attr.Values...)
+			} else {
+				editable := true
+				for _, restricted := range []string{
+					"creatorsname", "modifiersname", "createtimestamp",
+					"modifytimestamp", "entryuuid",
+				} {
+					if strings.EqualFold(attr.Name, restricted) {
+						editable = false
+						break
+					}
+				}
+				pv := &PropValues{
+					Values: attr.Values,
+					Editable: editable,
+				}
+				if attr.Name == modifyAttr {
+					if modifySuccess {
+						pv.ModifySuccess = true
+					} else if modifyError != "" {
+						pv.ModifyError = modifyError
+					}
+				}
+				props[attr.Name] = pv
+			}
+		}
+	}
+
+	members := []string{}
+	if mp, ok := props["member"]; ok {
+		members = mp.Values
+		delete(props, "member")
+	}
+	groups := []string{}
+	if gp, ok := props["memberof"]; ok {
+		groups = gp.Values
+		delete(props, "memberof")
+	}
+
+	// Get children
+	searchRequest = ldap.NewSearchRequest(
+		dn,
+		ldap.ScopeSingleLevel, ldap.NeverDerefAliases, 0, 0, false,
+		fmt.Sprintf("(objectclass=*)"),
+		[]string{"dn", "displayname"},
+		nil)
+
+	sr, err = login.conn.Search(searchRequest)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	sort.Sort(EntryList(sr.Entries))
+
+	children := []Child{}
+	for _, item := range sr.Entries {
+		children = append(children, Child{
+			DN: item.DN,
+			Identifier: strings.Split(item.DN, ",")[0],
+			DisplayName: item.GetAttributeValue("displayname"),
+		})
+	}
+
+	templateAdminLDAP.Execute(w, &AdminLDAPTplData{
+		DN: dn,
+		Members: members,
+		Groups: groups,
+		Props: props,
+		Children: children,
+		Path: path,
+		AddError: addError,
+	})
 }

go.mod

@@ -5,6 +5,7 @@ go 1.13
 require (
 	github.com/go-ldap/ldap v3.0.3+incompatible
 	github.com/go-ldap/ldap/v3 v3.1.6
+	github.com/gorilla/mux v1.7.3
 	github.com/gorilla/sessions v1.2.0
 	github.com/sirupsen/logrus v1.4.2
 )

go.sum

@@ -5,6 +5,8 @@ github.com/go-ldap/ldap v3.0.3+incompatible h1:HTeSZO8hWMS1Rgb2Ziku6b8a7qRIZZMHj
 github.com/go-ldap/ldap v3.0.3+incompatible/go.mod h1:qfd9rJvER9Q0/D/Sqn1DfHRoBp40uXYvFoEVrNEPqRc=
 github.com/go-ldap/ldap/v3 v3.1.6 h1:VTihvB7egSAvU6KOagaiA/EvgJMR2jsjRAVIho2ydBo=
 github.com/go-ldap/ldap/v3 v3.1.6/go.mod h1:5Zun81jBTabRaI8lzN7E1JjyEl1g6zI6u9pd8luAK4Q=
+github.com/gorilla/mux v1.7.3 h1:gnP5JzjVOuiZD07fKKToCAOjS0yOpj/qPETTXCCS6hw=
+github.com/gorilla/mux v1.7.3/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
 github.com/gorilla/securecookie v1.1.1 h1:miw7JPhV+b/lAHSXz4qd/nN9jRiAFV5FwjeKyCS8BvQ=
 github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+HVt/4epWDjd4=
 github.com/gorilla/sessions v1.2.0 h1:S7P+1Hm5V/AT9cjEcUD5uDaQSX0OE577aCXgoaKpYbQ=

main.go

@@ -16,6 +16,7 @@ import (
 
 	"github.com/go-ldap/ldap/v3"
 	"github.com/gorilla/sessions"
+	"github.com/gorilla/mux"
 )
 
 type ConfigFile struct {
@@ -24,6 +25,7 @@ type ConfigFile struct {
 	LdapServerAddr string `json:"ldap_server_addr"`
 	LdapTLS        bool   `json:"ldap_tls"`
 
+	BaseDN		  string `json:"base_dn"`
 	UserBaseDN    string `json:"user_base_dn"`
 	UserNameAttr  string `json:"user_name_attr"`
 	GroupBaseDN   string `json:"group_base_dn"`
@@ -53,6 +55,7 @@ func readConfig() ConfigFile {
 		SessionKey:     base64.StdEncoding.EncodeToString(key_bytes),
 		LdapServerAddr: "ldap://127.0.0.1:389",
 		LdapTLS:        false,
+		BaseDN:		    "dc=example,dc=com",
 		UserBaseDN:     "ou=users,dc=example,dc=com",
 		UserNameAttr:   "uid",
 		GroupBaseDN:    "ou=groups,dc=example,dc=com",
@@ -103,19 +106,20 @@ func main() {
 	config = &config_file
 	store = sessions.NewFilesystemStore("", []byte(config.SessionKey))
 
-	http.HandleFunc("/", handleHome)
+	r := mux.NewRouter()
-	http.HandleFunc("/logout", handleLogout)
+	r.HandleFunc("/", handleHome)
-	http.HandleFunc("/profile", handleProfile)
+	r.HandleFunc("/logout", handleLogout)
-	http.HandleFunc("/passwd", handlePasswd)
+	r.HandleFunc("/profile", handleProfile)
+	r.HandleFunc("/passwd", handlePasswd)
 
-	http.HandleFunc("/admin/users", handleAdminUsers)
+	r.HandleFunc("/admin/users", handleAdminUsers)
-	//http.HandleFunc("/admin/groups", handleAdminGroups)
+	r.HandleFunc("/admin/groups", handleAdminGroups)
-	//http.HandleFunc("/admin/ldap", handleAdminLDAP)
+	r.HandleFunc("/admin/ldap/{dn}", handleAdminLDAP)
 
 	staticfiles := http.FileServer(http.Dir("static"))
-	http.Handle("/static/", http.StripPrefix("/static/", staticfiles))
+	r.Handle("/static/{file:.*}", http.StripPrefix("/static/", staticfiles))
 
-	err := http.ListenAndServe(config.HttpBindAddr, logRequest(http.DefaultServeMux))
+	err := http.ListenAndServe(config.HttpBindAddr, logRequest(r))
 	if err != nil {
 		log.Fatal("Cannot start http server: ", err)
 	}
@@ -233,6 +237,7 @@ type HomePageData struct {
 	Login     *LoginStatus
 	CanAdmin  bool
 	CanInvite bool
+	BaseDN	  string
 }
 
 func handleHome(w http.ResponseWriter, r *http.Request) {
@@ -258,6 +263,7 @@ func handleHome(w http.ResponseWriter, r *http.Request) {
 		Login:     login,
 		CanAdmin:  can_admin,
 		CanInvite: can_invite,
+		BaseDN:	   config.BaseDN,
 	})
 }
 

templates/admin_groups.html

@@ -0,0 +1,31 @@
+{{define "title"}}Liste des groupes |{{end}}
+
+{{define "body"}}
+
+<div class="d-flex">
+  <h4>Liste des groupes</h4>
+  <a class="ml-auto btn btn-info" href="/">Retour</a>
+</div>
+
+<table class="table mt-4">
+  <thead>
+    <th scope="col">Identifiant</th>
+    <th scope="col">Nom complet</th>
+  </thead>
+  <tbody>
+    {{with $root := .}}
+      {{range $group := $root.Groups}}
+        <tr>
+          <td>
+            <a href="/admin/ldap/{{$group.DN}}">
+              {{$group.GetAttributeValue $root.GroupNameAttr}}
+            </a>
+          </td>
+          <td>{{$group.GetAttributeValue "displayname"}}</td>
+        </tr>
+      {{end}}
+    {{end}}
+  </tbody>
+</table>
+
+{{end}}

templates/admin_ldap.html

@@ -0,0 +1,134 @@
+{{define "title"}}Explorateur LDAP |{{end}}
+
+{{define "body"}}
+
+<div class="d-flex">
+  <h4>Explorateur LDAP</h4>
+  <a class="ml-auto btn btn-info" href="/">Retour</a>
+</div>
+
+<div class="mt-4">
+  <nav aria-label="breadcrumb">
+    <ol class="breadcrumb">
+      {{range .Path}}
+        {{if .Active}}
+          <li class="breadcrumb-item active" aria-current="page">{{.Identifier}}</li>
+        {{else}}
+          <li class="breadcrumb-item"><a href="/admin/ldap/{{.DN}}">{{.Identifier}}</a></li>
+        {{end}}
+      {{end}}
+    </ol>
+  </nav>
+</div>
+
+<table class="table mt-4">
+  <tbody>
+    {{range .Children}}
+        <tr>
+          <td>
+            <a href="/admin/ldap/{{.DN}}">
+              {{.Identifier}}
+            </a>
+          </td>
+          <td>{{.DisplayName}}</td>
+        </tr>
+    {{end}}
+  </tbody>
+</table>
+
+<h5>Attributs</h5>
+<div class="container">
+    {{range $key, $value := .Props}}
+      {{if $value.Editable}}
+        <div class="row mt-4">
+          <div class="col-md-3"><strong>{{$key}}</strong></div>
+
+          <div class="col-md-7">
+            <form method="POST">
+              <div class="form-row">
+                <input type="hidden" name="action" value="modify" />
+                <input type="hidden" name="attr" value="{{$key}}" />
+                <textarea name="values" rows="{{len $value.Values}}" class="form-control col-md-9">{{range $i, $x := $value.Values}}{{if $i}}{{"\n"}}{{end}}{{$x}}{{end}}</textarea>
+                <div class="col-md-3">
+                  <input type="submit" value="Modifier" class="form-control btn btn-primary" />
+                </div>
+              </div>
+            </form>
+            {{if $value.ModifySuccess}}
+              <div class="alert alert-success mt-2">Modification enregistrée.</div>
+            {{end}}
+            {{if $value.ModifyError}}
+              <div class="alert alert-danger mt-2">
+                Impossible de modifier la valeur.
+                <div style="font-size: 0.8em">{{$value.ModifyError}}</div>
+              </div>
+            {{end}}
+          </div>
+
+          <div class="col-md-1">
+            <form method="POST" onsubmit="return confirm('Supprimer cet attribut ?');">
+              <input type="hidden" name="action" value="delete" />
+              <input type="hidden" name="attr" value="{{$key}}" />
+              <input type="submit" value="Suppr." class="form-control btn btn-danger btn-sm" />
+            </form>
+          </div>
+        </div>
+      {{end}}
+    {{end}}
+    {{range $key, $value := .Props}}
+      {{if not $value.Editable}}
+        <div class="row mt-4">
+          <div class="col-md-3"><strong>{{$key}}</strong></div>
+          <div class="col-md-9">
+          {{range $value.Values}}
+            <div>{{.}}</div>
+          {{end}}
+          </div>
+        </div>
+      {{end}}
+    {{end}}
+    <form method="POST">
+      <div class="row mt-4">
+        <div class="col-md-3">
+          <input type="hidden" name="action" value="add" />
+          <input class="form-control" type="text" name="attr" placeholder="Ajouter un attribut..." />
+        </div>
+        <div class="col-md-7">
+          {{if .AddError}}
+            <div class="alert alert-danger">
+              Impossible d'ajouter la valeur.
+              <div style="font-size: 0.8em">{{.AddError}}</div>
+            </div>
+          {{end}}
+          <div class="form-row">
+            <textarea name="values" placeholder="Valeur(s)..." rows="2" class="form-control col-md-9"></textarea>
+            <div class="col-md-3">
+              <input type="submit" value="Ajouter" class="form-control btn btn-success" />
+            </div>
+          </div>
+        </div>
+      </div>
+    </form>
+</div>
+
+{{if .Members}}
+  <h5 class="mt-4">Membres</h5>
+  <ul class="list-group">
+    {{range .Members}}
+      <li class="list-group-item">{{.}}</li>
+    {{end}}
+  </ul>
+{{end}}
+
+{{if .Groups}}
+  <h5 class="mt-4">Membre de</h5>
+  <ul class="list-group">
+    {{range .Groups}}
+      <li class="list-group-item">{{.}}</li>
+    {{end}}
+  </ul>
+{{end}}
+
+<hr class="mt-4" />
+
+{{end}}

templates/admin_users.html

@@ -9,7 +9,7 @@
 
 <table class="table mt-4">
   <thead>
-    <th scope="col">{{ .UserNameAttr }}</th>
+    <th scope="col">Identifiant</th>
     <th scope="col">Nom complet</th>
     <th scope="col">Email</th>
   </thead>
@@ -17,7 +17,11 @@
     {{with $root := .}}
       {{range $user := $root.Users}}
         <tr>
-          <td>{{$user.GetAttributeValue $root.UserNameAttr}}</td>
+          <td>
+            <a href="/admin/ldap/{{$user.DN}}">
+              {{$user.GetAttributeValue $root.UserNameAttr}}
+            </a>
+          </td>
           <td>{{$user.GetAttributeValue "displayname"}}</td>
           <td>{{$user.GetAttributeValue "mail"}}</td>
         </tr>

templates/home.html

@@ -30,7 +30,7 @@
     <div class="list-group list-group-flush">
       <a class="list-group-item list-group-item-action" href="/admin/users">Utilisateurs</a>
       <a class="list-group-item list-group-item-action" href="/admin/groups">Groupes</a>
-      <a class="list-group-item list-group-item-action" href="/admin/ldap">Explorateur LDAP</a>
+      <a class="list-group-item list-group-item-action" href="/admin/ldap/{{.BaseDN}}">Explorateur LDAP</a>
     </div>
   </div>
 {{end}}