Add expiry date for links

app/Factories/LinkFactory.php

@@ -26,7 +26,7 @@ private static function formatLink($link_ending, $secret_ending=false) {
         return $short_url;
     }
 
-    public static function createLink($long_url, $is_secret=false, $custom_ending=null, $link_ip='127.0.0.1', $creator=false, $return_object=false, $is_api=false) {
+    public static function createLink($long_url, $is_secret=false, $custom_ending=null, $link_ip='127.0.0.1', $creator=false, $expiry_date=null, $return_object=false, $is_api=false) {
         /**
         * Given parameters needed to create a link, generate appropriate ending and
         * return formatted link.
@@ -36,6 +36,7 @@ public static function createLink($long_url, $is_secret=false, $custom_ending=nu
         * @param string (optional) $custom_ending
         * @param string $link_ip
         * @param string $creator
+        * @param string (optional) $expiry_date
         * @param bool $return_object
         * @param bool $is_api
         * @return string $formatted_link
@@ -89,12 +90,12 @@ public static function createLink($long_url, $is_secret=false, $custom_ending=nu
         }
 
         $link = new Link;
-        $link->short_url = $link_ending;
-        $link->long_url  = $long_url;
-        $link->ip        = $link_ip;
-        $link->is_custom = $custom_ending != null;
-
-        $link->is_api    = $is_api;
+        $link->short_url   = $link_ending;
+        $link->long_url    = $long_url;
+        $link->ip          = $link_ip;
+        $link->is_custom   = $custom_ending != null;
+        $link->is_api      = $is_api;
+        $link->expiry_date = $expiry_date;
 
         if ($creator) {
             $link->creator = $creator;

app/Http/Controllers/AdminPaginationController.php

@@ -141,13 +141,13 @@ public function paginateAdminUsers(Request $request) {
     public function paginateAdminLinks(Request $request) {
         self::ensureAdmin();
 
-        $admin_links = Link::select(['short_url', 'long_url', 'clicks', 'created_at', 'creator', 'is_disabled']);
+        $admin_links = Link::select(['short_url', 'long_url', 'clicks', 'created_at', 'expiry_date', 'creator', 'is_disabled']);
         return Datatables::of($admin_links)
             ->addColumn('disable', [$this, 'renderToggleLinkActiveCell'])
             ->addColumn('delete', [$this, 'renderDeleteLinkCell'])
             ->editColumn('clicks', [$this, 'renderClicksCell'])
             ->editColumn('long_url', [$this, 'renderLongUrlCell'])
-            ->escapeColumns(['short_url', 'creator'])
+            ->escapeColumns(['short_url', 'creator', 'expiry_date'])
             ->make(true);
     }
 
@@ -156,12 +156,12 @@ public function paginateUserLinks(Request $request) {
 
         $username = session('username');
         $user_links = Link::where('creator', $username)
-            ->select(['id', 'short_url', 'long_url', 'clicks', 'created_at']);
+            ->select(['id', 'short_url', 'long_url', 'clicks', 'created_at', 'expiry_date']);
 
         return Datatables::of($user_links)
             ->editColumn('clicks', [$this, 'renderClicksCell'])
             ->editColumn('long_url', [$this, 'renderLongUrlCell'])
-            ->escapeColumns(['short_url'])
+            ->escapeColumns(['short_url', 'expiry_date'])
             ->make(true);
     }
 }

app/Http/Controllers/Api/ApiLinkController.php

@@ -7,10 +7,10 @@
 use App\Exceptions\Api\ApiException;
 
 class ApiLinkController extends ApiController {
-    protected function getShortenedLink($long_url, $is_secret, $custom_ending, $link_ip, $username, $response_type) {
+    protected function getShortenedLink($long_url, $is_secret, $custom_ending, $link_ip, $username, $expiry_date $response_type) {
         try {
             $formatted_link = LinkFactory::createLink(
-                $long_url, $is_secret, $custom_ending, $link_ip, $username, false, true);
+                $long_url, $is_secret, $custom_ending, $link_ip, $username, $expiry_date, false, true);
         }
         catch (\Exception $e) {
             throw new ApiException('CREATION_ERROR', $e->getMessage(), 400, $response_type);
@@ -39,6 +39,7 @@ public function shortenLink(Request $request) {
             $request->input('custom_ending'),
             $request->ip(),
             $user->username,
+            $user->input('expiry_date'),
             $response_type
         );
 
@@ -84,6 +85,7 @@ public function shortenLinksBulk(Request $request) {
                 array_get($link, 'custom_ending'),
                 $link_ip,
                 $username,
+                array_get($link, 'expiry_date'),
                 $response_type
             );
 

app/Http/Controllers/LinkController.php

@@ -2,6 +2,7 @@
 namespace App\Http\Controllers;
 use Illuminate\Http\Request;
 use Illuminate\Http\Redirect;
+use Carbon\Carbon;
 
 use App\Models\Link;
 use App\Factories\LinkFactory;
@@ -34,11 +35,12 @@ public function performShorten(Request $request) {
         $long_url = $request->input('link-url');
         $custom_ending = $request->input('custom-ending');
         $is_secret = ($request->input('options') == "s" ? true : false);
+        $expiry_date = $request->input('expiry_date');
         $creator = session('username');
         $link_ip = $request->ip();
 
         try {
-            $short_url = LinkFactory::createLink($long_url, $is_secret, $custom_ending, $link_ip, $creator);
+            $short_url = LinkFactory::createLink($long_url, $is_secret, $custom_ending, $link_ip, $creator, $expiry_date);
         }
         catch (\Exception $e) {
             return self::renderError($e->getMessage());
@@ -55,6 +57,16 @@ public function performRedirect(Request $request, $short_url, $secret_key=false)
         if ($link == null) {
         	return abort(404);
         }
+
+        // Return an error if link has expired.
+        if ($link->expiry_date !== '0000-00-00' && $link->expiry_date !== null && $link->expiry_date < Carbon::today()->toDateString()) {
+             if (env('SETTING_REDIRECT_404')) {
+                return abort(404);
+            }
+            return view('error', [
+                'message' => 'Sorry, but this link has been expired.'
+            ]);
+        }
 
         // Return an error if the link has been disabled
         // or return a 404 if SETTING_REDIRECT_404 is set to true

app/Http/Controllers/SetupController.php

@@ -127,6 +127,7 @@ public static function performSetup(Request $request) {
         $st_anon_api = $request->input('setting:anon_api');
         $st_anon_api_quota = $request->input('setting:anon_api_quota');
         $st_pseudor_ending = $request->input('setting:pseudor_ending');
+        $st_expriy_date = $request->input('setting:expiry_date');
         $st_adv_analytics = $request->input('setting:adv_analytics');
 
         $mail_host = $request->input('app:smtp_server');
@@ -185,6 +186,7 @@ public static function performSetup(Request $request) {
             'ST_ANON_API' => $st_anon_api,
             'ST_ANON_API_QUOTA' => $st_anon_api_quota,
             'ST_PSEUDOR_ENDING' => $st_pseudor_ending,
+            'ST_EXPIRY_DATE' => $st_expiry_date,
             'ST_ADV_ANALYTICS' => $st_adv_analytics,
 
             'TMP_SETUP_AUTH_KEY' => $setup_auth_key

database/migrations/2021_12_27_102607_create_expiry_date_table.php

@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class CreateExpiryDateTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('links', function (Blueprint $table)
+        {
+            $table->date('expiry_date')->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('links', function (Blueprint $table)
+        {
+            $table->dropIndex('expiry_date');
+        });
+    }
+}

public/css/base.css

@@ -37,6 +37,9 @@ body {
 .error-alert {
     text-align: left;
 }
+.expiry-date input {
+    line-height: 1;
+}
 
 @media (min-width: 768px) {
     .content-div-padding {

public/js/AdminCtrl.js

@@ -156,8 +156,8 @@ polr.controller('AdminCtrl', function($scope, $compile, $timeout) {
                     {className: 'wrap-text', data: 'long_url', name: 'long_url'},
                     {data: 'clicks', name: 'clicks'},
                     {data: 'created_at', name: 'created_at'},
+                    {data: 'expiry_date', name: 'expiry_date'},
                     {data: 'creator', name: 'creator'},
-
                     {data: 'disable', name: 'disable', orderable: false, searchable: false},
                     {data: 'delete', name: 'delete', orderable: false, searchable: false}
 
@@ -172,7 +172,8 @@ polr.controller('AdminCtrl', function($scope, $compile, $timeout) {
                 {className: 'wrap-text', data: 'short_url', name: 'short_url'},
                 {className: 'wrap-text', data: 'long_url', name: 'long_url'},
                 {data: 'clicks', name: 'clicks'},
-                {data: 'created_at', name: 'created_at'}
+                {data: 'created_at', name: 'created_at'},
+                {data: 'expiry_date', name: 'expiry_date'}
             ]
         }, datatables_config));
     };

resources/views/env.blade.php

@@ -94,6 +94,9 @@
 # A comma-separated list of permitted email domains
 SETTING_ALLOWED_EMAIL_DOMAINS="{{$ST_ALLOWED_EMAIL_DOMAINS}}"
 
+# Set to true to enable choosing date for expiring links
+SETTING_EYPIRY_DATE="{{$ST_EYPIRY_DATE}}"
+
 # reCAPTCHA site key
 POLR_RECAPTCHA_SITE_KEY="{{$POLR_RECAPTCHA_SITE_KEY}}"
 

resources/views/index.blade.php

@@ -36,6 +36,18 @@ class='form-control long-link-input' placeholder='http://' name='link-url' />
                 <div id='link-availability-status'></div>
             </div>
         </div>
+
+        @if (env('SETTING_EXPIRY_DATE'))
+        {{-- Show secret toggle only if using counter-based ending --}}
+        <div>
+            <div class='expiry-date'>
+                <label>Expiry date
+                    <input type='date' class='form-control' name='expiry_date'>
+                </label>
+            </div>
+        </div>
+        @endif
+
     </div>
     <input type='submit' class='btn btn-info' id='shorten' value='Shorten' />
     <a href='#' class='btn btn-warning' id='show-link-options'>Link Options</a>

resources/views/setup.blade.php

@@ -113,6 +113,15 @@
                 <option value='true'>Use pseudorandom strings (longer but less predictable, e.g 6LxZ3j)</option>
             </select>
 
+            <p>
+                Expiry Date:
+                <setup-tooltip content="If you choose to use pseudorandom strings, you will not have the option to use a counter-based ending."></setup-tooltip>
+            </p>
+            <select name='setting:expiry_date' class='form-control'>
+                <option value='false' selected='selected'>Show expiry date selection</option>
+                <option value='true'>No expiry date</option>
+            </select>
+
             <p>
                 URL Ending Base:
                 <setup-tooltip content="This will have no effect if you choose to use pseudorandom endings."></setup-tooltip>

resources/views/snippets/link_table.blade.php

@@ -5,6 +5,7 @@
             <th>Long Link</th>
             <th>Clicks</th>
             <th>Date</th>
+            <th>Expiry Date</th>
             @if ($table_id == "admin_links_table")
             {{-- Show action buttons only if admin view --}}
             <th>Creator</th>

tests/LinkHelperTest.php

@@ -36,7 +36,7 @@ public function testLinkHelperAlreadyShortened() {
     }
 
     public function testLinkExists() {
-        $link = LinkFactory::createLink('http://example.com/ci', true, null, '127.0.0.1', false, true);
+        $link = LinkFactory::createLink('http://example.com/ci', true, null, '127.0.0.1', '2021-27-12', false, true);
         // assert that existent link ending returns true
         $this->assertNotEquals(LinkHelper::linkExists($link->short_url), false);
         // assert that nonexistent link ending returns false