Admin Actions

* Add impersonate feature
* Add ban/unban user feature
* Add promote/demote admin status feature
* Add admin user deletion feature
* Admin ability to see other status certification pics
* Nav bar indicator of pending admin actions such as cert pics
  needing approval
* Admin ability to search cert pics for specific user

pkg/controller/account/login.go

@@ -56,6 +56,13 @@ func Login() http.HandlerFunc {
 				return
 			}
 
+			// Is their account banned or disabled?
+			if user.Status != models.UserStatusActive {
+				session.FlashError(w, r, "Your account has been %s. If you believe this was done in error, please contact support.", user.Status)
+				templates.Redirect(w, r.URL.Path)
+				return
+			}
+
 			// OK. Log in the user's session.
 			session.LoginUser(w, r, user)
 

pkg/controller/account/profile.go

@@ -37,6 +37,12 @@ func Profile() http.HandlerFunc {
 			return
 		}
 
+		// Banned or disabled? Only admin can view then.
+		if user.Status != models.UserStatusActive && !currentUser.IsAdmin {
+			templates.NotFoundPage(w, r)
+			return
+		}
+
 		vars := map[string]interface{}{
 			"User":     user,
 			"IsFriend": models.FriendStatus(currentUser.ID, user.ID),

pkg/controller/admin/user_actions.go

@@ -0,0 +1,126 @@
+package admin
+
+import (
+	"net/http"
+	"strconv"
+
+	"git.kirsle.net/apps/gosocial/pkg/models"
+	"git.kirsle.net/apps/gosocial/pkg/models/deletion"
+	"git.kirsle.net/apps/gosocial/pkg/session"
+	"git.kirsle.net/apps/gosocial/pkg/templates"
+)
+
+// Admin actions against a user account.
+func UserActions() http.HandlerFunc {
+	tmpl := templates.Must("admin/user_actions.html")
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		var (
+			intent  = r.FormValue("intent")
+			confirm = r.Method == http.MethodPost
+			userId  uint64
+		)
+
+		// Get current user.
+		currentUser, err := session.CurrentUser(r)
+		if err != nil {
+			session.FlashError(w, r, "Failed to get current user: %s", err)
+			templates.Redirect(w, "/")
+			return
+		}
+
+		if idInt, err := strconv.Atoi(r.FormValue("user_id")); err == nil {
+			userId = uint64(idInt)
+		} else {
+			session.FlashError(w, r, "Invalid or missing user_id parameter: %s", err)
+			templates.Redirect(w, "/admin")
+			return
+		}
+
+		// Get this user.
+		user, err := models.GetUser(userId)
+		if err != nil {
+			session.FlashError(w, r, "Didn't find user ID in database: %s", err)
+			templates.Redirect(w, "/admin")
+			return
+		}
+
+		switch intent {
+		case "impersonate":
+			if confirm {
+				if err := session.ImpersonateUser(w, r, user, currentUser); err != nil {
+					session.FlashError(w, r, "Failed to impersonate user: %s", err)
+				} else {
+					session.Flash(w, r, "You are now impersonating %s", user.Username)
+					templates.Redirect(w, "/me")
+					return
+				}
+			}
+		case "ban":
+			if confirm {
+				status := r.PostFormValue("status")
+				if status == "active" {
+					user.Status = models.UserStatusActive
+				} else if status == "banned" {
+					user.Status = models.UserStatusBanned
+				}
+
+				user.Save()
+				session.Flash(w, r, "User ban status updated!")
+				templates.Redirect(w, "/u/"+user.Username)
+				return
+			}
+		case "promote":
+			if confirm {
+				action := r.PostFormValue("action")
+				user.IsAdmin = action == "promote"
+				user.Save()
+				session.Flash(w, r, "User admin status updated!")
+				templates.Redirect(w, "/u/"+user.Username)
+				return
+			}
+		case "delete":
+			if confirm {
+				if err := deletion.DeleteUser(user); err != nil {
+					session.FlashError(w, r, "Failed when deleting the user: %s", err)
+				} else {
+					session.Flash(w, r, "User has been deleted!")
+				}
+				templates.Redirect(w, "/admin")
+				return
+			}
+		default:
+			session.FlashError(w, r, "Unsupported admin user intent: %s", intent)
+			templates.Redirect(w, "/admin")
+			return
+		}
+
+		var vars = map[string]interface{}{
+			"Intent": intent,
+			"User":   user,
+		}
+		if err := tmpl.Execute(w, r, vars); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	})
+}
+
+// Un-impersonate a user account.
+func Unimpersonate() http.HandlerFunc {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		sess := session.Get(r)
+		if sess.Impersonator > 0 {
+			user, err := models.GetUser(sess.Impersonator)
+			if err != nil {
+				session.FlashError(w, r, "Couldn't unimpersonate: impersonator (%d) is not an admin!", user.ID)
+				templates.Redirect(w, "/")
+				return
+			}
+
+			session.LoginUser(w, r, user)
+			session.Flash(w, r, "No longer impersonating.")
+			templates.Redirect(w, "/")
+		}
+		templates.Redirect(w, "/")
+	})
+}

pkg/controller/photo/certification.go

@@ -167,6 +167,40 @@ func Certification() http.HandlerFunc {
 func AdminCertification() http.HandlerFunc {
 	tmpl := templates.Must("admin/certification.html")
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		// View status
+		var view = r.FormValue("view")
+		if view == "" {
+			view = "pending"
+		}
+
+		// Short circuit the GET view for username/email search (exact match)
+		if username := r.FormValue("username"); username != "" {
+			user, err := models.FindUser(username)
+			if err != nil {
+				session.FlashError(w, r, "Username or email '%s' not found.", username)
+				templates.Redirect(w, r.URL.Path)
+				return
+			}
+
+			cert, err := models.GetCertificationPhoto(user.ID)
+			if err != nil {
+				session.FlashError(w, r, "Couldn't get their certification photo: %s", err)
+				templates.Redirect(w, r.URL.Path)
+				return
+			}
+
+			var vars = map[string]interface{}{
+				"View":      view,
+				"Photos":    []*models.CertificationPhoto{cert},
+				"UserMap":   &models.UserMap{user.ID: user},
+				"FoundUser": user,
+			}
+			if err := tmpl.Execute(w, r, vars); err != nil {
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+			}
+			return
+		}
+
 		// Making a verdict?
 		if r.Method == http.MethodPost {
 			var (
@@ -275,7 +309,7 @@ func AdminCertification() http.HandlerFunc {
 			Sort:    "updated_at desc",
 		}
 		pager.ParsePage(r)
-		photos, err := models.CertificationPhotosNeedingApproval(models.CertificationPhotoPending, pager)
+		photos, err := models.CertificationPhotosNeedingApproval(models.CertificationPhotoStatus(view), pager)
 		if err != nil {
 			session.FlashError(w, r, "Couldn't load certification photos from DB: %s", err)
 		}
@@ -291,6 +325,7 @@ func AdminCertification() http.HandlerFunc {
 		}
 
 		var vars = map[string]interface{}{
+			"View":    view,
 			"Photos":  photos,
 			"UserMap": userMap,
 			"Pager":   pager,

pkg/middleware/authentication.go

@@ -7,6 +7,7 @@ import (
 	"git.kirsle.net/apps/gosocial/pkg/config"
 	"git.kirsle.net/apps/gosocial/pkg/controller/photo"
 	"git.kirsle.net/apps/gosocial/pkg/log"
+	"git.kirsle.net/apps/gosocial/pkg/models"
 	"git.kirsle.net/apps/gosocial/pkg/session"
 	"git.kirsle.net/apps/gosocial/pkg/templates"
 )
@@ -24,6 +25,19 @@ func LoginRequired(handler http.Handler) http.Handler {
 			return
 		}
 
+		// Are they banned or disabled?
+		if user.Status == models.UserStatusDisabled {
+			session.LogoutUser(w, r)
+			session.FlashError(w, r, "Your account has been disabled and you are now logged out.")
+			templates.Redirect(w, "/")
+			return
+		} else if user.Status == models.UserStatusBanned {
+			session.LogoutUser(w, r)
+			session.FlashError(w, r, "Your account has been banned and you are now logged out.")
+			templates.Redirect(w, "/")
+			return
+		}
+
 		// Ping LastLoginAt for long lived sessions.
 		if time.Since(user.LastLoginAt) > config.LastLoginAtCooldown {
 			user.LastLoginAt = time.Now()

pkg/models/certification.go

@@ -63,6 +63,13 @@ func CertificationPhotosNeedingApproval(status CertificationPhotoStatus, pager *
 	return p, result.Error
 }
 
+// CountCertificationPhotosNeedingApproval gets the count of pending photos for admin alert.
+func CountCertificationPhotosNeedingApproval() int64 {
+	var count int64
+	DB.Where("status = ?", CertificationPhotoPending).Model(&CertificationPhoto{}).Count(&count)
+	return count
+}
+
 // Save photo.
 func (p *CertificationPhoto) Save() error {
 	result := DB.Save(p)

pkg/models/user.go

@@ -47,6 +47,7 @@ type UserStatus string
 const (
 	UserStatusActive   = "active"
 	UserStatusDisabled = "disabled"
+	UserStatusBanned   = "banned"
 )
 
 // CreateUser. It is assumed username and email are correctly formatted.

pkg/router/router.go

@@ -41,6 +41,7 @@ func New() http.Handler {
 	mux.Handle("/messages/compose", middleware.LoginRequired(inbox.Compose()))
 	mux.Handle("/friends", middleware.LoginRequired(friend.Friends()))
 	mux.Handle("/friends/add", middleware.LoginRequired(friend.AddFriend()))
+	mux.Handle("/admin/unimpersonate", middleware.LoginRequired(admin.Unimpersonate()))
 
 	// Certification Required. Pages that only full (verified) members can access.
 	mux.Handle("/photo/gallery", middleware.CertRequired(photo.SiteGallery()))
@@ -49,6 +50,7 @@ func New() http.Handler {
 	// Admin endpoints.
 	mux.Handle("/admin", middleware.AdminRequired(admin.Dashboard()))
 	mux.Handle("/admin/photo/certification", middleware.AdminRequired(photo.AdminCertification()))
+	mux.Handle("/admin/user-action", middleware.AdminRequired(admin.UserActions()))
 
 	// JSON API endpoints.
 	mux.HandleFunc("/v1/version", api.Version())

pkg/session/session.go

@@ -21,6 +21,7 @@ type Session struct {
 	UserID       uint64    `json:"userId,omitempty"`
 	Flashes      []string  `json:"flashes,omitempty"`
 	Errors       []string  `json:"errors,omitempty"`
+	Impersonator uint64    `json:"impersonator,omitempty"`
 	LastSeen     time.Time `json:"lastSeen"`
 }
 
@@ -88,6 +89,7 @@ func (s *Session) Save(w http.ResponseWriter) {
 		Name:     config.SessionCookieName,
 		Value:    s.UUID,
 		MaxAge:   config.SessionCookieMaxAge,
+		Path:     "/",
 		HttpOnly: true,
 	}
 	http.SetCookie(w, cookie)
@@ -144,6 +146,7 @@ func LoginUser(w http.ResponseWriter, r *http.Request, u *models.User) error {
 	sess := Get(r)
 	sess.LoggedIn = true
 	sess.UserID = u.ID
+	sess.Impersonator = 0
 	sess.Save(w)
 
 	// Ping the user's last login time.
@@ -151,6 +154,32 @@ func LoginUser(w http.ResponseWriter, r *http.Request, u *models.User) error {
 	return u.Save()
 }
 
+// ImpersonateUser assumes the role of the user impersonated by an admin uid.
+func ImpersonateUser(w http.ResponseWriter, r *http.Request, u *models.User, impersonator *models.User) error {
+	if u == nil || u.ID == 0 {
+		return errors.New("not a valid user account")
+	}
+	if impersonator == nil || impersonator.ID == 0 || !impersonator.IsAdmin {
+		return errors.New("impersonator not a valid admin account")
+	}
+
+	sess := Get(r)
+	sess.LoggedIn = true
+	sess.UserID = u.ID
+	sess.Impersonator = impersonator.ID
+	sess.Save(w)
+
+	// Ping the user's last login time.
+	u.LastLoginAt = time.Now()
+	return u.Save()
+}
+
+// Impersonated returns if the current session has an impersonator.
+func Impersonated(r *http.Request) bool {
+	sess := Get(r)
+	return sess.Impersonator > 0
+}
+
 // LogoutUser signs a user out.
 func LogoutUser(w http.ResponseWriter, r *http.Request) {
 	sess := Get(r)

pkg/templates/template_vars.go

@@ -30,11 +30,16 @@ func MergeUserVars(r *http.Request, m map[string]interface{}) {
 	m["CurrentUser"] = nil
 	m["NavUnreadMessages"] = 0
 	m["NavFriendRequests"] = 0
+	m["NavAdminNotifications"] = 0  // total count of admin notifications for nav
+	m["NavCertificationPhotos"] = 0 // admin indicator for certification photos
+	m["SessionImpersonated"] = false
 
 	if r == nil {
 		return
 	}
 
+	m["SessionImpersonated"] = session.Impersonated(r)
+
 	if user, err := session.CurrentUser(r); err == nil {
 		m["LoggedIn"] = true
 		m["CurrentUser"] = user
@@ -52,5 +57,13 @@ func MergeUserVars(r *http.Request, m map[string]interface{}) {
 		} else {
 			log.Error("MergeUserVars: couldn't CountFriendRequests for %d: %s", user.ID, err)
 		}
+
+		// Are we admin?
+		if user.IsAdmin {
+			// Any pending certification photos?
+			m["NavCertificationPhotos"] = models.CountCertificationPhotosNeedingApproval()
 		}
+	}
+
+	m["NavAdminNotifications"] = m["NavCertificationPhotos"]
 }

web/templates/account/dashboard.html

@@ -111,6 +111,14 @@
                                     Log out
                                 </a>
                             </li>
+                            {{if .SessionImpersonated}}
+                            <li>
+                                <a href="/admin/unimpersonate" class="has-text-danger">
+                                    <span class="icon"><i class="fa fa-ghost"></i></span>
+                                    <span>Unimpersonate</span>
+                                </a>
+                            </li>
+                            {{end}}
                             <li>
                                 <a href="/account/delete">
                                     <span class="icon"><i class="fa fa-trash"></i></span>

web/templates/account/profile.html

@@ -34,6 +34,11 @@
                                 {{.User.Username}}
                             {{end}}
                         </h1>
+                        {{if ne .User.Status "active"}}
+                            <h2 class="subtitle">
+                                ({{.User.Status}})
+                            </h2>
+                        {{end}}
                     </div>
 
                     <div class="column is-narrow">
@@ -305,6 +310,47 @@
                         </table>
                     </div>
                 </div>
+
+                <!-- Admin Actions-->
+                {{if .CurrentUser.IsAdmin}}
+                <div class="card block">
+                    <header class="card-header has-background-danger">
+                        <p class="card-header-title has-text-light">
+                            <i class="fa fa-gavel pr-2"></i>
+                            Admin Actions
+                        </p>
+                    </header>
+
+                    <div class="card-content">
+                        <ul class="menu-list">
+                            <li>
+                                <a href="/admin/user-action?intent=impersonate&user_id={{.User.ID}}">
+                                    <span class="icon"><i class="fa fa-ghost"></i></span>
+                                    <span>Impersonate this user</span>
+                                </a>
+                            </li>
+                            <li>
+                                <a href="/admin/user-action?intent=ban&user_id={{.User.ID}}">
+                                    <span class="icon"><i class="fa fa-ban"></i></span>
+                                    <span>Ban/unban this user</span>
+                                </a>
+                            </li>
+                            <li>
+                                <a href="/admin/user-action?intent=promote&user_id={{.User.ID}}">
+                                    <span class="icon"><i class="fa fa-gavel"></i></span>
+                                    <span>Add/Remove admin rights</span>
+                                </a>
+                            </li>
+                            <li>
+                                <a href="/admin/user-action?intent=delete&user_id={{.User.ID}}">
+                                    <span class="icon"><i class="fa fa-trash"></i></span>
+                                    <span>Delete user account</span>
+                                </a>
+                            </li>
+                        </ul>
+                    </div>
+                </div>
+                {{end}}
             </div>
         </div>
     </div>

web/templates/admin/certification.html

@@ -1,5 +1,6 @@
 {{define "title"}}Admin - Certification Photos{{end}}
 {{define "content"}}
+{{$Root := .}}
 <div class="container">
     <section class="hero is-danger is-bold">
         <div class="hero-body">
@@ -12,11 +13,69 @@
     </section>
 
     <div class="block p-4">
-        <div class="block">
-            There {{Pluralize64 .Pager.Total "is" "are"}} <strong>{{.Pager.Total}}</strong> Certification Photo{{Pluralize64 .Pager.Total}} needing approval.
+        <div class="columns">
+            <div class="column">
+                {{if .Pager}}
+                    There {{Pluralize64 .Pager.Total "is" "are"}} <strong>{{.Pager.Total}}</strong> Certification Photo{{Pluralize64 .Pager.Total}}
+                    {{if eq .View "pending"}}
+                        needing approval.
+                    {{else}}
+                        at status "{{.View}}."
+                    {{end}}
+                {{else if .FoundUser}}
+                    Found user <strong><a href="/u/{{.FoundUser.Username}}" class="has-text-dark">{{.FoundUser.Username}}</a></strong>
+                    (<a href="mailto:{{.FoundUser.Email}}">{{.FoundUser.Email}}</a>)
+                {{end}}
+            </div>
+            <div class="column is-narrow">
+                <div class="tabs is-toggle">
+                    <ul>
+                        <li{{if eq .View "pending"}} class="is-active"{{end}}>
+                            <a href="{{.Request.URL.Path}}?view=pending">Needing Approval</a>
+                        </li>
+                        <li{{if eq .View "approved"}} class="is-active"{{end}}>
+                            <a href="{{.Request.URL.Path}}?view=approved">Approved</a>
+                        </li>
+                        <li{{if eq .View "rejected"}} class="is-active"{{end}}>
+                            <a href="{{.Request.URL.Path}}?view=rejected">Rejected</a>
+                        </li>
+                    </ul>
+                </div>
+            </div>
         </div>
 
-        {{$Root := .}}
+        <div class="block">
+            <form method="GET" action="{{.Request.URL.Path}}">
+                <div class="field block">
+                    <div class="label" for="username">Search username or email:</div>
+                    <input type="text" class="input"
+                        name="username"
+                        id="username"
+                        placeholder="Press Enter to search">
+                </div>
+            </form>
+        </div>
+
+        {{if .Pager}}
+        <nav class="pagination" role="navigation" aria-label="pagination">
+            <a class="pagination-previous{{if not .Pager.HasPrevious}} is-disabled{{end}}" title="Previous"
+                href="{{.Request.URL.Path}}?view={{.View}}&page={{.Pager.Previous}}">Previous</a>
+            <a class="pagination-next{{if not .Pager.HasNext}} is-disabled{{end}}" title="Next"
+                href="{{.Request.URL.Path}}?view={{.View}}&page={{.Pager.Next}}">Next page</a>
+            <ul class="pagination-list">
+                {{range .Pager.Iter}}
+                <li>
+                    <a class="pagination-link{{if .IsCurrent}} is-current{{end}}"
+                        aria-label="Page {{.Page}}"
+                        href="{{$Root.Request.URL.Path}}?view={{$Root.View}}&page={{.Page}}">
+                        {{.Page}}
+                    </a>
+                </li>
+                {{end}}
+            </ul>
+        </nav>
+        {{end}}
+
         <div class="columns is-multiline">
         {{range .Photos}}
             <div class="column is-one-third">
@@ -57,21 +116,45 @@
                                 </div>
                             </div>
 
+                            <div class="block">
+                                <div class="columns">
+                                    <div class="column is-narrow">
+                                        <strong>Status:
+                                    </div>
+                                    <div class="column">
+                                        {{if eq .Status "pending"}}
+                                            <strong class="has-text-warning">Pending Approval</strong>
+                                        {{else if eq .Status "approved"}}
+                                            <strong class="has-text-success">Approved</strong>
+                                        {{else if eq .Status "rejected"}}
+                                            <strong class="has-text-danger">Rejected</strong>
+                                        {{else}}
+                                            <strong>{{.Status}}</strong>
+                                        {{end}}
+                                    </div>
+                                </div>
+                            </div>
+
                             <div class="field">
                                 <textarea class="textarea" name="comment"
                                     cols="60" rows="2"
-                                    placeholder="Admin comment (for rejection)"></textarea>
+                                    placeholder="Admin comment (for rejection)">{{.AdminComment}}</textarea>
                             </div>
                         </div>
                         <footer class="card-footer">
+                            {{if not (eq .Status "rejected")}}
                             <button type="submit" name="verdict" value="reject" class="card-footer-item button is-danger">
                                 <span class="icon"><i class="fa fa-xmark"></i></span>
                                 <span>Reject</span>
                             </button>
+                            {{end}}
+
+                            {{if not (eq .Status "approved")}}
                             <button type="submit" name="verdict" value="approve" class="card-footer-item button is-success">
                                 <span class="icon"><i class="fa fa-check"></i></span>
                                 <span>Approve</span>
                             </button>
+                            {{end}}
                         </footer>
                     </div>
                 </form>

web/templates/admin/dashboard.html

@@ -26,6 +26,7 @@
                                 <a href="/admin/photo/certification">
                                     <span class="icon"><i class="fa fa-certificate"></i></span>
                                     Certification Photos
+                                    {{if .NavCertificationPhotos}}<span class="tag is-danger ml-1">{{.NavCertificationPhotos}}</span>{{end}}
                                 </a>
                             </li>
                         </ul>

web/templates/admin/user_actions.html

@@ -0,0 +1,166 @@
+{{define "title"}}Compose a Message{{end}}
+{{define "content"}}
+<div class="container">
+    <section class="hero is-info is-bold">
+        <div class="hero-body">
+            <div class="container">
+                <h1 class="title">
+                    Admin Action
+                </h1>
+                <h2 class="subtitle">On user {{.User.Username}}</h2>
+            </div>
+        </div>
+    </section>
+
+    <div class="block p-4">
+        <div class="columns is-centered">
+            <div class="column is-half">
+
+                <div class="card" style="width: 100%; max-width: 640px">
+                    <header class="card-header has-background-link">
+                        <p class="card-header-title has-text-light">
+                            {{if eq .Intent "impersonate"}}
+                                <span class="icon"><i class="fa fa-ghost"></i></span>
+                                Impersonate User
+                            {{else if eq .Intent "ban"}}
+                                <span class="icon"><i class="fa fa-ban"></i></span>
+                                Ban User
+                            {{else if eq .Intent "promote"}}
+                                <span class="icon"><i class="fa fa-gavel"></i></span>
+                                Promote User
+                            {{else if eq .Intent "delete"}}
+                                <span class="icon"><i class="fa fa-trash"></i></span>
+                                Delete User
+                            {{end}}
+                        </p>
+                    </header>
+                    <div class="card-content">
+
+                        <div class="media block">
+                            <div class="media-left">
+                                <figure class="image is-64x64">
+                                    {{if .User.ProfilePhoto.ID}}
+                                    <img src="{{PhotoURL .User.ProfilePhoto.CroppedFilename}}">
+                                    {{else}}
+                                    <img src="/static/img/shy.png">
+                                    {{end}}
+                                </figure>
+                            </div>
+                            <div class="media-content">
+                                <p class="title is-4">{{or .User.Name "(no name)"}}</p>
+                                <p class="subtitle is-6">
+                                    <span class="icon"><i class="fa fa-user"></i></span>
+                                    <a href="/u/{{.User.Username}}" target="_blank">{{.User.Username}}</a>
+                                </p>
+                            </div>
+                        </div>
+
+                        <form action="/admin/user-action" method="POST">
+                            {{InputCSRF}}
+                            <input type="hidden" name="intent" value="{{.Intent}}">
+                            <input type="hidden" name="user_id" value="{{.User.ID}}">
+
+                            {{if eq .Intent "impersonate"}}
+                                <div class="block content">
+                                    <h3>With great power...</h3>
+                                    <p>
+                                        By <strong>impersonating</strong> this user, you will be considered as "logged in"
+                                        to their account and have access to their messages, profile, photos and settings.
+                                    </p>
+                                    <p>
+                                        Please respect user privacy and only impersonate an account as needed to diagnose
+                                        a customer support issue or similar.
+                                    </p>
+                                </div>
+
+                                <div class="field has-text-centered">
+                                    <button type="submit" class="button is-success">
+                                        Log in as {{.User.Username}}
+                                    </button>
+                                </div>
+                            {{else if eq .Intent "ban"}}
+                                <div class="block content">
+                                    <p>
+                                        This user is currently:
+                                        {{if eq .User.Status "active"}}
+                                            <strong class="has-text-success">Active (not banned)</strong>
+                                        {{else if eq .User.Status "disabled"}}
+                                            <strong class="has-text-warning">Disabled</strong>
+                                        {{else if eq .User.Status "banned"}}
+                                            <strong class="has-text-danger">Banned</strong>
+                                        {{end}}
+                                    </p>
+
+                                    <p>
+                                        Select a new status for them below:
+                                    </p>
+                                </div>
+
+                                <div class="field has-text-centered">
+                                    <button type="submit" name="status" value="active" class="button is-success">
+                                        Active
+                                    </button>
+                                    <button type="submit" name="status" value="banned" class="button is-danger">
+                                        Banned
+                                    </button>
+                                </div>
+                            {{else if eq .Intent "promote"}}
+                                <div class="block content">
+                                    <p>
+                                        This user is currently:
+                                        {{if .User.IsAdmin}}
+                                            <strong class="has-text-danger">Admin</strong>
+                                        {{else}}
+                                            <strong class="has-text-success">NOT Admin</strong>
+                                        {{end}}
+                                    </p>
+
+                                    <p>
+                                        Select a new status for them below:
+                                    </p>
+                                </div>
+
+                                <div class="field has-text-centered">
+                                    <button type="submit" name="action" value="promote" class="button is-success">
+                                        Make Admin
+                                    </button>
+                                    <button type="submit" name="action" value="demote" class="button is-danger">
+                                        Remove Admin
+                                    </button>
+                                </div>
+                            {{else if eq .Intent "delete"}}
+                                <div class="block content">
+                                    <p>
+                                        Click the button below to <strong>deep delete</strong> this user account.
+                                    </p>
+                                </div>
+
+                                <div class="field has-text-centered">
+                                    <button type="submit" class="button is-danger">
+                                        Delete User Account
+                                    </button>
+                                </div>
+                            {{end}}
+                        </form>
+
+                    </div>
+                </div>
+
+            </div>
+        </div>
+    </div>
+
+</div>
+
+<script type="text/javascript">
+    window.addEventListener("DOMContentLoaded", (event) => {
+        let $file = document.querySelector("#file"),
+            $fileName = document.querySelector("#fileName");
+
+        $file.addEventListener("change", function() {
+            let file = this.files[0];
+            $fileName.innerHTML = file.name;
+        });
+    });
+</script>
+{{end}}

web/templates/base.html

@@ -116,7 +116,10 @@
                                         {{end}}
                                     </figure>
                                 </div>
-                                <div class="column">{{.CurrentUser.Username}}</div>
+                                <div class="column">
+                                    {{.CurrentUser.Username}}
+                                    {{if .NavAdminNotifications}}<span class="tag is-danger ml-1">{{.NavAdminNotifications}}</span>{{end}}
+                                </div>
                             </div>
                         </a>
 
@@ -127,7 +130,16 @@
                             <a class="navbar-item" href="/photo/upload">Upload Photo</a>
                             <a class="navbar-item" href="/settings">Settings</a>
                             {{if .CurrentUser.IsAdmin}}
-                            <a class="navbar-item has-text-danger" href="/admin">Admin</a>
+                            <a class="navbar-item has-text-danger" href="/admin">
+                                Admin
+                                {{if .NavAdminNotifications}}<span class="tag is-danger ml-1">{{.NavAdminNotifications}}</span>{{end}}
+                            </a>
+                            {{end}}
+                            {{if .SessionImpersonated}}
+                                <a href="/admin/unimpersonate" class="navbar-item has-text-danger">
+                                    <span class="icon"><i class="fa fa-ghost"></i></span>
+                                    <span>Unimpersonate</span>
+                                </a>
                             {{end}}
                             <a class="navbar-item" href="/logout">Log out</a>
                         </div>