pixelfed/app/Http/Controllers/DiscoverController.php

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<?php
namespace App\Http\Controllers;
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use App\{
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DiscoverCategory,
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Follower,
Hashtag,
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HashtagFollow,
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Profile,
Status,
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StatusHashtag,
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UserFilter
};
use Auth, DB, Cache;
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use Illuminate\Http\Request;
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use App\Transformer\Api\AccountTransformer;
use App\Transformer\Api\AccountWithStatusesTransformer;
use App\Transformer\Api\StatusTransformer;
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use App\Transformer\Api\StatusStatelessTransformer;
use League\Fractal;
use League\Fractal\Serializer\ArraySerializer;
use League\Fractal\Pagination\IlluminatePaginatorAdapter;
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use App\Services\StatusHashtagService;
use App\Services\SnowflakeService;
use App\Services\StatusService;
class DiscoverController extends Controller
{
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protected $fractal;
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public function __construct()
{
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$this->fractal = new Fractal\Manager();
$this->fractal->setSerializer(new ArraySerializer());
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}
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public function home(Request $request)
{
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abort_if(!Auth::check(), 403);
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return view('discover.home');
}
public function showTags(Request $request, $hashtag)
{
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abort_if(!config('instance.discover.tags.is_public') && !Auth::check(), 403);
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$tag = Hashtag::whereName($hashtag)
->orWhere('slug', $hashtag)
->firstOrFail();
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$tagCount = StatusHashtagService::count($tag->id);
return view('discover.tags.show', compact('tag', 'tagCount'));
}
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public function showCategory(Request $request, $slug)
{
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abort_if(!Auth::check(), 403);
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$tag = DiscoverCategory::whereActive(true)
->whereSlug($slug)
->firstOrFail();
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$posts = Cache::remember('discover:category-'.$tag->id.':posts', now()->addMinutes(15), function() use ($tag) {
$tagids = $tag->hashtags->pluck('id')->toArray();
$sids = StatusHashtag::whereIn('hashtag_id', $tagids)->orderByDesc('status_id')->take(500)->pluck('status_id')->toArray();
$posts = Status::whereScope('public')->whereIn('id', $sids)->whereNull('uri')->whereType('photo')->whereNull('in_reply_to_id')->whereNull('reblog_of_id')->orderByDesc('created_at')->take(39)->get();
return $posts;
});
$tag->posts_count = Cache::remember('discover:category-'.$tag->id.':posts_count', now()->addMinutes(30), function() use ($tag) {
return $tag->posts()->whereScope('public')->count();
});
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return view('discover.tags.category', compact('tag', 'posts'));
}
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public function showLoops(Request $request)
{
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if(config('exp.loops') != true) {
return redirect('/');
}
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return view('discover.loops.home');
}
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public function loopsApi(Request $request)
{
abort_if(!config('exp.loops'), 403);
// todo proper pagination, maybe LoopService
$res = Cache::remember('discover:loops:recent', now()->addHours(6), function() {
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$loops = Status::whereType('video')
->whereNull('uri')
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->whereScope('public')
->latest()
->take(18)
->get();
$resource = new Fractal\Resource\Collection($loops, new StatusStatelessTransformer());
return $this->fractal->createData($resource)->toArray();
});
return $res;
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}
public function loopWatch(Request $request)
{
abort_if(!Auth::check(), 403);
abort_if(!config('exp.loops'), 403);
$this->validate($request, [
'id' => 'integer|min:1'
]);
$id = $request->input('id');
// todo log loops
return response()->json(200);
}
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public function getHashtags(Request $request)
{
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$auth = Auth::check();
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abort_if(!config('instance.discover.tags.is_public') && !$auth, 403);
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$this->validate($request, [
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'hashtag' => 'required|string|min:1|max:124',
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'page' => 'nullable|integer|min:1|max:' . ($auth ? 29 : 10)
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]);
$page = $request->input('page') ?? '1';
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$end = $page > 1 ? $page * 9 : 0;
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$tag = $request->input('hashtag');
$hashtag = Hashtag::whereName($tag)->firstOrFail();
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$res['tags'] = StatusHashtagService::get($hashtag->id, $page, $end);
if($page == 1) {
$res['follows'] = HashtagFollow::whereUserId(Auth::id())->whereHashtagId($hashtag->id)->exists();
}
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return $res;
}
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public function profilesDirectory(Request $request)
{
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return redirect('/')->with('statusRedirect', 'The Profile Directory is unavailable at this time.');
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return view('discover.profiles.home');
}
public function profilesDirectoryApi(Request $request)
{
$this->validate($request, [
'page' => 'integer|max:10'
]);
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return ['error' => 'Temporarily unavailable.'];
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$page = $request->input('page') ?? 1;
$key = 'discover:profiles:page:' . $page;
$ttl = now()->addHours(12);
$res = Cache::remember($key, $ttl, function() {
$profiles = Profile::whereNull('domain')
->whereNull('status')
->whereIsPrivate(false)
->has('statuses')
->whereIsSuggestable(true)
// ->inRandomOrder()
->simplePaginate(8);
$resource = new Fractal\Resource\Collection($profiles, new AccountTransformer());
return $this->fractal->createData($resource)->toArray();
});
return $res;
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}
public function trendingApi(Request $request)
{
$this->validate($request, [
'range' => 'nullable|string|in:daily,monthly'
]);
$range = $request->input('range') == 'monthly' ? 31 : 1;
$key = ':api:discover:trending:v2.8:range:' . $range;
$ttl = now()->addMinutes(15);
$ids = Cache::remember($key, $ttl, function() use($range) {
$days = $range == 1 ? 2 : 31;
$min_id = SnowflakeService::byDate(now()->subDays($days));
return Status::select(
'id',
'scope',
'type',
'is_nsfw',
'likes_count',
'created_at'
)
->where('id', '>', $min_id)
->whereScope('public')
->whereIn('type', [
'photo',
'photo:album',
'video'
])
->whereIsNsfw(false)
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->orderBy('likes_count','desc')
->take(15)
->pluck('id');
});
$res = $ids->map(function($s) {
return StatusService::get($s);
});
return response()->json($res);
}
public function trendingHashtags(Request $request)
{
$res = StatusHashtag::select('hashtag_id', \DB::raw('count(*) as total'))
->groupBy('hashtag_id')
->orderBy('total','desc')
->where('created_at', '>', now()->subDays(4))
->take(9)
->get()
->map(function($h) {
$hashtag = $h->hashtag;
return [
'id' => $hashtag->id,
'total' => $h->total,
'name' => '#'.$hashtag->name,
'url' => $hashtag->url('?src=dsh1')
];
});
return $res;
}
public function trendingPlaces(Request $request)
{
$res = Status::select('place_id',DB::raw('count(place_id) as total'))
->whereNotNull('place_id')
->where('created_at','>',now()->subDays(14))
->groupBy('place_id')
->orderBy('total')
->limit(4)
->get()
->map(function($s){
$p = $s->place;
return [
'name' => $p->name,
'country' => $p->country,
'url' => $p->url()
];
});
return $res;
}
}