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\StatusStatelessTransformer;
use League\Fractal;
use League\Fractal\Serializer\ArraySerializer;
use League\Fractal\Pagination\IlluminatePaginatorAdapter;
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use App\Services\StatusHashtagService;
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::whereSlug($hashtag)->firstOrFail();
$tagCount = StatusHashtagService::count($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'));
}
public function showPersonal(Request $request)
{
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abort_if(!Auth::check(), 403);
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$profile = Auth::user()->profile;
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$tags = Cache::remember('profile-'.$profile->id.':hashtags', now()->addMinutes(15), function() use ($profile){
return $profile->hashtags()->groupBy('hashtag_id')->inRandomOrder()->take(8)->get();
});
$following = Cache::remember('profile:following:'.$profile->id, now()->addMinutes(60), function() use ($profile) {
$res = Follower::whereProfileId($profile->id)->pluck('following_id');
return $res->push($profile->id)->toArray();
});
$posts = Cache::remember('profile-'.$profile->id.':hashtag-posts', now()->addMinutes(5), function() use ($profile, $following) {
$posts = Status::whereScope('public')->withCount(['likes','comments'])->whereNotIn('profile_id', $following)->whereHas('media')->whereType('photo')->orderByDesc('created_at')->take(39)->get();
$posts->post_count = Status::whereScope('public')->whereNotIn('profile_id', $following)->whereHas('media')->whereType('photo')->count();
return $posts;
});
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return view('discover.personal', compact('posts', 'tags'));
}
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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 $request)
{
abort_if(!config('exp.loops'), 403);
// todo proper pagination, maybe LoopService
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$res = Cache::remember('discover:loops:recent', now()->addHours(1), function() {
$loops = Status::whereType('video')
->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($request, [
'hashtag' => 'required|alphanum|min:2|max:124',
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'page' => 'nullable|integer|min:1|max:' . ($auth ? 19 : 3)
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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;
}
}