Add Subscribers page

- Shows all fediverse followers and email subscribers
- Shows number of email subscribers on Stats page
- Links to Subscribers page from Stats page

Requires running `make ui` to regenerate stylesheet.

Ref T826

account.go

@@ -1059,17 +1059,20 @@ func viewStats(app *App, u *User, w http.ResponseWriter, r *http.Request) error
 	}
 	obj := struct {
 		*UserPage
-		VisitsBlog  string
-		Collection  *Collection
-		TopPosts    *[]PublicPost
-		APFollowers int
-		Silenced    bool
+		VisitsBlog       string
+		Collection       *Collection
+		TopPosts         *[]PublicPost
+		APFollowers      int
+		EmailEnabled     bool
+		EmailSubscribers int
+		Silenced         bool
 	}{
-		UserPage:   NewUserPage(app, r, u, titleStats+"Stats", flashes),
-		VisitsBlog: alias,
-		Collection: c,
-		TopPosts:   topPosts,
-		Silenced:   silenced,
+		UserPage:     NewUserPage(app, r, u, titleStats+"Stats", flashes),
+		VisitsBlog:   alias,
+		Collection:   c,
+		TopPosts:     topPosts,
+		EmailEnabled: app.cfg.Email.Enabled(),
+		Silenced:     silenced,
 	}
 	obj.UserPage.CollAlias = c.Alias
 	if app.cfg.App.Federation {
@@ -1079,11 +1082,73 @@ func viewStats(app *App, u *User, w http.ResponseWriter, r *http.Request) error
 		}
 		obj.APFollowers = len(*folls)
 	}
+	if obj.EmailEnabled {
+		subs, err := app.db.GetEmailSubscribers(c.ID, true)
+		if err != nil {
+			return err
+		}
+		obj.EmailSubscribers = len(subs)
+	}
 
 	showUserPage(w, "stats", obj)
 	return nil
 }
 
+func handleViewSubscribers(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
+	vars := mux.Vars(r)
+	c, err := app.db.GetCollection(vars["collection"])
+	if err != nil {
+		return err
+	}
+
+	filter := r.FormValue("filter")
+
+	flashes, _ := getSessionFlashes(app, w, r, nil)
+	obj := struct {
+		*UserPage
+		Collection CollectionNav
+		EmailSubs  []*EmailSubscriber
+		Followers  *[]RemoteUser
+		Silenced   bool
+
+		Filter            string
+		FederationEnabled bool
+		CanEmailSub       bool
+		CanAddSubs        bool
+		EmailSubsEnabled  bool
+	}{
+		UserPage: NewUserPage(app, r, u, c.DisplayTitle()+" Subscribers", flashes),
+		Collection: CollectionNav{
+			Collection: c,
+			Path:       r.URL.Path,
+			SingleUser: app.cfg.App.SingleUser,
+		},
+		Silenced:          u.IsSilenced(),
+		Filter:            filter,
+		FederationEnabled: app.cfg.App.Federation,
+		CanEmailSub:       app.cfg.Email.Enabled(),
+		EmailSubsEnabled:  c.EmailSubsEnabled(),
+	}
+
+	obj.Followers, err = app.db.GetAPFollowers(c)
+	if err != nil {
+		return err
+	}
+
+	obj.EmailSubs, err = app.db.GetEmailSubscribers(c.ID, true)
+	if err != nil {
+		return err
+	}
+
+	if obj.Filter == "" {
+		// Set permission to add email subscribers
+		//obj.CanAddSubs = app.db.GetUserAttribute(c.OwnerID, userAttrCanAddEmailSubs) == "1"
+	}
+
+	showUserPage(w, "subscribers", obj)
+	return nil
+}
+
 func viewSettings(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
 	fullUser, err := app.db.GetUserByID(u.ID)
 	if err != nil {

collections.go

@@ -84,6 +84,14 @@ type (
 		TotalPages  int
 		Silenced    bool
 	}
+
+	CollectionNav struct {
+		*Collection
+		Path       string
+		SingleUser bool
+		CanPost    bool
+	}
+
 	SubmittedCollection struct {
 		// Data used for updating a given collection
 		ID      int64

less/admin.less

@@ -60,6 +60,35 @@ nav#admin {
 			background: #ccc;
 		}
 	}
+
+	&.sub {
+		margin: 1em 0 2em;
+		a:not(.toggle) {
+			border: 0;
+			border-bottom: 2px transparent solid;
+			.rounded(0);
+			padding: 0.5em;
+			margin-left: 0.5em;
+			margin-right: 0.5em;
+
+			&:hover {
+				color: @primary;
+				background: transparent;
+			}
+			&.selected {
+				color: @primary;
+				background: transparent;
+				border-bottom-color: @primary;
+			}
+			&+a {
+				margin-left: 1em;
+			}
+		}
+		a.toggle {
+			margin-top: -0.5em;
+			float: right;
+		}
+	}
 }
 
 .admin-actions {

routes.go

@@ -99,6 +99,7 @@ func InitRoutes(apper Apper, r *mux.Router) *mux.Router {
 	me.HandleFunc("/c/", handler.User(viewCollections)).Methods("GET")
 	me.HandleFunc("/c/{collection}", handler.User(viewEditCollection)).Methods("GET")
 	me.HandleFunc("/c/{collection}/stats", handler.User(viewStats)).Methods("GET")
+	me.HandleFunc("/c/{collection}/subscribers", handler.User(handleViewSubscribers)).Methods("GET")
 	me.Path("/delete").Handler(csrf.Protect(apper.App().keys.CSRFKey)(handler.User(handleUserDelete))).Methods("POST")
 	me.HandleFunc("/posts", handler.Redirect("/me/posts/", UserLevelUser)).Methods("GET")
 	me.HandleFunc("/posts/", handler.User(viewArticles)).Methods("GET")

templates/user/include/nav.tmpl

@@ -9,6 +9,7 @@
             {{if .CanPost}}<a href="{{if .SingleUser}}/me/new{{else}}/#{{.Alias}}{{end}}" class="btn gentlecta">New Post</a>{{end}}
             <a href="/me/c/{{.Alias}}" {{if and (hasPrefix .Path "/me/c/") (hasSuffix .Path .Alias)}}class="selected"{{end}}>Customize</a>
             <a href="/me/c/{{.Alias}}/stats" {{if hasSuffix .Path "/stats"}}class="selected"{{end}}>Stats</a>
+            <a href="/me/c/{{.Alias}}/subscribers" {{if hasSuffix .Path "/subscribers"}}class="selected"{{end}}>Subscribers</a>
             <a href="{{if .SingleUser}}/{{else}}/{{.Alias}}/{{end}}">View Blog &rarr;</a>
         </nav>
     </header>

templates/user/stats.tmpl

@@ -31,14 +31,16 @@ td.none {
 
 	<p>Stats for all time.</p>
 
-	{{if .Federation}}
-	<h3>Fediverse stats</h3>
+	{{if or .Federation .EmailEnabled}}
+	<h3>Subscribers</h3>
 	<table id="fediverse" class="classy export">
 		<tr>
-			<th>Followers</th>
+			{{if .Federation}}<th>Fediverse Followers</th>{{end}}
+			{{if .EmailEnabled}}<th>Email Subscribers</th>{{end}}
 		</tr>
 		<tr>
-			<td>{{.APFollowers}}</td>
+			{{if .Federation}}<td><a href="/me/c/{{.Collection.Alias}}/subscribers?filter=fediverse">{{.APFollowers}}</a></td>{{end}}
+			{{if .EmailEnabled}}<td><a href="/me/c/{{.Collection.Alias}}/subscribers">{{.EmailSubscribers}}</a></td>{{end}}
 		</tr>
 	</table>
 	{{end}}

templates/user/subscribers.tmpl

@@ -0,0 +1,96 @@
+{{define "subscribers"}}
+{{template "header" .}}
+
+<style>
+	.toolbar {
+		text-align: right;
+		margin: 1em 0;
+	}
+</style>
+
+<div class="snug content-container {{if not .CanEmailSub}}clean{{end}}">
+	{{if .Silenced}}
+		{{template "user-silenced"}}
+	{{end}}
+
+{{if .Collection.Collection}}{{template "collection-breadcrumbs" .}}{{end}}
+
+<h1>Subscribers</h1>
+{{if .Collection.Collection}}
+	{{template "collection-nav" .Collection}}
+
+	<nav class="pager sub">
+		<a href="/me/c/{{.Collection.Alias}}/subscribers" {{if eq .Filter ""}}class="selected"{{end}}>Email ({{len .EmailSubs}})</a>
+		<a href="/me/c/{{.Collection.Alias}}/subscribers?filter=fediverse" {{if eq .Filter "fediverse"}}class="selected"{{end}}>Followers ({{len .Followers}})</a>
+	</nav>
+{{end}}
+
+    {{if .Flashes}}<ul class="errors">
+        {{range .Flashes}}<li class="urgent">{{.}}</li>{{end}}
+	</ul>{{end}}
+
+	{{ if eq .Filter "fediverse" }}
+		<table class="classy export">
+			<tr>
+				<th style="width: 60%">Username</th>
+				<th colspan="2">Since</th>
+			</tr>
+
+            {{if and (gt (len .Followers) 0) (not .FederationEnabled)}}
+				<div class="alert info">
+					<p><strong>Federation is disabled on this server</strong>, so followers won't receive any new posts.</p>
+				</div>
+            {{end}}
+            {{ if gt (len .Followers) 0 }}
+                {{range $el := .Followers}}
+					<tr>
+						<td><a href="{{.ActorID}}">@{{.EstimatedHandle}}</a></td>
+						<td>{{.CreatedFriendly}}</td>
+					</tr>
+                {{end}}
+            {{ else }}
+				<tr>
+					<td colspan="2">No followers yet.</td>
+				</tr>
+            {{ end }}
+		</table>
+	{{ else }}
+		{{if or .CanEmailSub .EmailSubs}}
+			{{if not .CanEmailSub}}
+				<div class="alert info">
+					<p><strong>Email subscriptions are disabled on this server</strong>, so no new emails will be sent out.</p>
+				</div>
+			{{end}}
+			{{if not .EmailSubsEnabled}}
+				<div class="alert info">
+					<p><strong>Email subscriptions are disabled</strong>. {{if .EmailSubs}}No new emails will be sent out.{{end}} To enable email subscriptions, turn the option on from your blog's <a href="/me/c/{{.Collection.Alias}}#updates">Customize</a> page.</p>
+				</div>
+			{{end}}
+			<table class="classy export">
+				<tr>
+					<th style="width: 60%">Email Address</th>
+					<th colspan="2">Since</th>
+				</tr>
+
+				{{ if .EmailSubs }}
+					{{range $el := .EmailSubs}}
+						<tr>
+							<td><a href="mailto:{{.Email.String}}">{{.Email.String}}</a></td>
+							<td>{{.SubscribedFriendly}}</td>
+						</tr>
+					{{end}}
+				{{ else }}
+					<tr>
+						<td colspan="2">No subscribers yet.</td>
+					</tr>
+				{{ end }}
+			</table>
+		{{end}}
+	{{ end }}
+
+</div>
+
+{{template "foot" .}}
+
+{{template "body-end" .}}
+{{end}}