Explicit admin filter for the site gallery

* For admins, make it a specific opt-in filter for the Site Gallery to
  show all pictures regardless of friendship or grant (for moderation
  purposes). On this view, Like and Comment buttons are taken away.
  Non-admins are not shown the option and the back-end ignores the
  parameter for them.
* Fix user avatars on compose and admin actions page.

pkg/controller/photo/site_gallery.go

@@ -27,6 +27,7 @@ func SiteGallery() http.HandlerFunc {
 			// Search filters.
 			filterExplicit   = r.FormValue("explicit")
 			filterVisibility = r.FormValue("visibility")
+			adminView        = r.FormValue("admin_view") == "true"
 			sort             = r.FormValue("sort")
 			sortOK           bool
 		)
@@ -60,7 +61,7 @@ func SiteGallery() http.HandlerFunc {
 			Sort:    sort,
 		}
 		pager.ParsePage(r)
-		photos, err := models.PaginateGalleryPhotos(currentUser, filterExplicit, filterVisibility, pager)
+		photos, err := models.PaginateGalleryPhotos(currentUser, filterExplicit, filterVisibility, adminView, pager)
 
 		// Bulk load the users associated with these photos.
 		var userIDs = []uint64{}
@@ -93,6 +94,7 @@ func SiteGallery() http.HandlerFunc {
 			"Sort":             sort,
 			"FilterExplicit":   filterExplicit,
 			"FilterVisibility": filterVisibility,
+			"AdminView":        adminView,
 		}
 
 		if err := tmpl.Execute(w, r, vars); err != nil {

pkg/models/photo.go

@@ -154,14 +154,13 @@ PaginateGalleryPhotos gets a page of all public user photos for the site gallery
 
 Admin view returns ALL photos regardless of Gallery status.
 */
-func PaginateGalleryPhotos(user *User, filterExplicit, filterVisibility string, pager *Pagination) ([]*Photo, error) {
+func PaginateGalleryPhotos(user *User, filterExplicit, filterVisibility string, adminView bool, pager *Pagination) ([]*Photo, error) {
 	var (
 		p     = []*Photo{}
 		query *gorm.DB
 
 		// Get the user ID and their preferences.
 		userID     = user.ID
-		adminView  = user.IsAdmin  // Admins see everything on the site.
 		explicitOK = user.Explicit // User opted-in for explicit content
 
 		blocklist      = BlockedUserIDs(userID)
@@ -171,6 +170,9 @@ func PaginateGalleryPhotos(user *User, filterExplicit, filterVisibility string,
 		placeholders   = []interface{}{}
 	)
 
+	// Admins see everything on the site (only an admin user can get an admin view).
+	adminView = user.IsAdmin && adminView
+
 	// Include ourself in our friend IDs.
 	friendIDs = append(friendIDs, userID)
 

web/templates/admin/user_actions.html

@@ -38,10 +38,10 @@
 
                         <div class="media block">
                             <div class="media-left">
-                                {{template "avatar-64x64" .}}
+                                {{template "avatar-64x64" .User}}
                             </div>
                             <div class="media-content">
-                                <p class="title is-4">{{.NameOrUsername}}</p>
+                                <p class="title is-4">{{.User.NameOrUsername}}</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>

web/templates/inbox/compose.html

@@ -26,10 +26,10 @@
 
                         <div class="media block">
                             <div class="media-left">
-                                {{template "avatar-64x64" .}}
+                                {{template "avatar-64x64" .User}}
                             </div>
                             <div class="media-content">
-                                <p class="title is-4">{{.NameOrUsername}}</p>
+                                <p class="title is-4">{{.User.NameOrUsername}}</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>

web/templates/photo/gallery.html

@@ -253,6 +253,20 @@
                                 </div>
                             </div>
 
+                            {{if .CurrentUser.IsAdmin}}
+                            <div class="column">
+                                <div class="field">
+                                    <label class="label has-text-danger" for="admin_view">Admin view:</label>
+                                    <div class="select is-fullwidth">
+                                        <select id="admin_view" name="admin_view">
+                                            <option value="">Default (disabled)</option>
+                                            <option value="true"{{if .AdminView}} selected{{end}}>Show all photos</option>
+                                        </select>
+                                    </div>
+                                </div>
+                            </div>
+                            {{end}}
+
                         </div>
                         <div class="has-text-centered">
                             <a href="/photo/gallery" class="button">Reset</a>
@@ -356,6 +370,7 @@
                         {{template "card-body" .}}
 
                         <!-- Like & Comments buttons -->
+                        {{if not $Root.AdminView}}
                         <div class="mt-4 columns is-centered is-mobile is-gapless">
                             <div class="column is-narrow mr-1">
                                 {{$Like := $Root.LikeMap.Get .ID}}
@@ -379,6 +394,7 @@
                                 </a>
                             </div>
                         </div>
+                        {{end}}
                     </div>
 
                     <footer class="card-footer">
@@ -456,6 +472,7 @@
                                 {{template "card-body" .}}
 
                                 <!-- Like & Comments buttons -->
+                                {{if not $Root.AdminView}}
                                 <div class="mt-4 columns is-centered is-mobile is-gapless">
                                     <div class="column is-narrow mr-1">
                                         {{$Like := $Root.LikeMap.Get .ID}}
@@ -479,6 +496,7 @@
                                         </a>
                                     </div>
                                 </div>
+                                {{end}}
                             </div>
 
                             <footer class="card-footer">