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pixelfed/app/Services/SearchApiV2Service.php

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2020-02-07 00:12:20 +00:00
<?php
namespace App\Services;
use Cache;
use Illuminate\Support\Facades\Redis;
use App\{Hashtag, Profile, Status};
use App\Transformer\Api\AccountTransformer;
use App\Transformer\Api\StatusTransformer;
use League\Fractal;
use League\Fractal\Serializer\ArraySerializer;
use League\Fractal\Pagination\IlluminatePaginatorAdapter;
use App\Util\ActivityPub\Helpers;
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use Illuminate\Support\Str;
use App\Services\AccountService;
use App\Services\HashtagService;
use App\Services\StatusService;
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class SearchApiV2Service
{
private $query;
static $mastodonMode = false;
public static function query($query, $mastodonMode = false)
{
self::$mastodonMode = $mastodonMode;
return (new self)->run($query);
}
protected function run($query)
{
$this->query = $query;
$q = urldecode($query->input('q'));
if($query->has('resolve') &&
( Str::startsWith($q, 'https://') ||
Str::substrCount($q, '@') >= 1)
) {
return $this->resolveQuery();
}
if($query->has('type')) {
switch ($query->input('type')) {
case 'accounts':
return [
'accounts' => $this->accounts(),
'hashtags' => [],
'statuses' => []
];
break;
case 'hashtags':
return [
'accounts' => [],
'hashtags' => $this->hashtags(),
'statuses' => []
];
break;
case 'statuses':
return [
'accounts' => [],
'hashtags' => [],
'statuses' => $this->statuses()
];
break;
}
}
if($query->has('account_id')) {
return [
'accounts' => [],
'hashtags' => [],
'statuses' => $this->statusesById()
];
}
return [
'accounts' => $this->accounts(),
'hashtags' => $this->hashtags(),
'statuses' => $this->statuses()
];
}
protected function accounts($initalQuery = false)
{
$mastodonMode = self::$mastodonMode;
$user = request()->user();
$limit = $this->query->input('limit') ?? 20;
$offset = $this->query->input('offset') ?? 0;
$rawQuery = $initalQuery ? $initalQuery : $this->query->input('q');
$query = $rawQuery . '%';
$webfingerQuery = $query;
if(Str::substrCount($rawQuery, '@') == 1 && substr($rawQuery, 0, 1) !== '@') {
$query = '@' . $query;
}
if(substr($webfingerQuery, 0, 1) !== '@') {
$webfingerQuery = '@' . $webfingerQuery;
}
$banned = InstanceService::getBannedDomains() ?? [];
$domainBlocks = UserFilterService::domainBlocks($user->profile_id);
if($domainBlocks && count($domainBlocks)) {
$banned = array_unique(
array_values(
array_merge($banned, $domainBlocks)
)
);
}
$operator = config('database.default') === 'pgsql' ? 'ilike' : 'like';
$results = Profile::select('username', 'id', 'followers_count', 'domain')
->where('username', $operator, $query)
->orWhere('webfinger', $operator, $webfingerQuery)
->orderByDesc('profiles.followers_count')
->offset($offset)
->limit($limit)
->get()
->filter(function($profile) use ($banned) {
return in_array($profile->domain, $banned) == false;
})
->map(function($res) use($mastodonMode) {
return $mastodonMode ?
AccountService::getMastodon($res['id']) :
AccountService::get($res['id']);
})
->filter(function($account) {
return $account && isset($account['id']);
})
->values();
return $results;
}
protected function hashtags()
{
$mastodonMode = self::$mastodonMode;
$q = $this->query->input('q');
$limit = $this->query->input('limit') ?? 20;
$offset = $this->query->input('offset') ?? 0;
$query = Str::startsWith($q, '#') ? '%' . substr($q, 1) . '%' : '%' . $q . '%';
$operator = config('database.default') === 'pgsql' ? 'ilike' : 'like';
return Hashtag::where('name', $operator, $query)
->orWhere('slug', $operator, $query)
->where(function($q) {
return $q->where('can_search', true)
->orWhereNull('can_search');
})
->orderByDesc('cached_count')
->offset($offset)
->limit($limit)
->get()
->map(function($tag) use($mastodonMode) {
$res = [
'name' => $tag->name,
'url' => $tag->url()
];
if(!$mastodonMode) {
$res['history'] = [];
$res['count'] = HashtagService::count($tag->id);
}
return $res;
});
}
protected function statuses()
{
// Removed until we provide more relevent sorting/results
return [];
}
protected function statusesById()
{
// Removed until we provide more relevent sorting/results
return [];
}
protected function resolveQuery()
{
$default = [
'accounts' => [],
'hashtags' => [],
'statuses' => [],
];
$user = request()->user();
$mastodonMode = self::$mastodonMode;
$query = urldecode($this->query->input('q'));
$banned = InstanceService::getBannedDomains();
$domainBlocks = UserFilterService::domainBlocks($user->profile_id);
if($domainBlocks && count($domainBlocks)) {
$banned = array_unique(
array_values(
array_merge($banned, $domainBlocks)
)
);
}
if(substr($query, 0, 1) === '@' && !Str::contains($query, '.')) {
$default['accounts'] = $this->accounts(substr($query, 1));
return $default;
}
if(Helpers::validateLocalUrl($query)) {
if(Str::contains($query, '/p/') || Str::contains($query, 'i/web/post/')) {
return $this->resolveLocalStatus();
} else if(Str::contains($query, 'i/web/profile/')) {
return $this->resolveLocalProfileId();
} else {
return $this->resolveLocalProfile();
}
} else {
if(!Helpers::validateUrl($query) && strpos($query, '@') == -1) {
return $default;
}
if(!Str::startsWith($query, 'http') && Str::substrCount($query, '@') == 1 && strpos($query, '@') !== 0) {
try {
$res = WebfingerService::lookup('@' . $query, $mastodonMode);
} catch (\Exception $e) {
return $default;
}
if($res && isset($res['id'], $res['url'])) {
$domain = strtolower(parse_url($res['url'], PHP_URL_HOST));
if(in_array($domain, $banned)) {
return $default;
}
$default['accounts'][] = $res;
return $default;
} else {
return $default;
}
}
if(Str::substrCount($query, '@') == 2) {
try {
$res = WebfingerService::lookup($query, $mastodonMode);
} catch (\Exception $e) {
return $default;
}
if($res && isset($res['id'])) {
$domain = strtolower(parse_url($res['url'], PHP_URL_HOST));
if(in_array($domain, $banned)) {
return $default;
}
$default['accounts'][] = $res;
return $default;
} else {
return $default;
}
}
if($sid = Status::whereUri($query)->first()) {
$s = StatusService::get($sid->id, false);
if(!$s) {
return $default;
}
if(in_array($s['visibility'], ['public', 'unlisted'])) {
$default['statuses'][] = $s;
return $default;
}
}
try {
$res = ActivityPubFetchService::get($query);
if($res) {
$json = json_decode($res, true);
if(!$json || !isset($json['@context']) || !isset($json['type']) || !in_array($json['type'], ['Note', 'Person'])) {
return [
'accounts' => [],
'hashtags' => [],
'statuses' => [],
];
}
switch($json['type']) {
case 'Note':
$obj = Helpers::statusFetch($query);
if(!$obj || !isset($obj['id'])) {
return $default;
}
$note = $mastodonMode ?
StatusService::getMastodon($obj['id'], false) :
StatusService::get($obj['id'], false);
if(!$note) {
return $default;
}
if(!isset($note['visibility']) || !in_array($note['visibility'], ['public', 'unlisted'])) {
return $default;
}
$default['statuses'][] = $note;
return $default;
break;
case 'Person':
$obj = Helpers::profileFetch($query);
if(!$obj) {
return $default;
}
if(in_array($obj['domain'], $banned)) {
return $default;
}
$default['accounts'][] = $mastodonMode ?
AccountService::getMastodon($obj['id'], true) :
AccountService::get($obj['id'], true);
return $default;
break;
default:
return [
'accounts' => [],
'hashtags' => [],
'statuses' => [],
];
break;
}
}
} catch (\Exception $e) {
return [
'accounts' => [],
'hashtags' => [],
'statuses' => [],
];
}
return $default;
}
}
protected function resolveLocalStatus()
{
$query = urldecode($this->query->input('q'));
$query = last(explode('/', parse_url($query, PHP_URL_PATH)));
$status = StatusService::getMastodon($query, false);
if(!$status || !in_array($status['visibility'], ['public', 'unlisted'])) {
return [
'accounts' => [],
'hashtags' => [],
'statuses' => []
];
}
$res = [
'accounts' => [],
'hashtags' => [],
'statuses' => [$status]
];
return $res;
}
protected function resolveLocalProfile()
{
$query = urldecode($this->query->input('q'));
$query = last(explode('/', parse_url($query, PHP_URL_PATH)));
$profile = Profile::whereNull('status')
->whereNull('domain')
->whereUsername($query)
->first();
if(!$profile) {
return [
'accounts' => [],
'hashtags' => [],
'statuses' => []
];
}
$fractal = new Fractal\Manager();
$fractal->setSerializer(new ArraySerializer());
$resource = new Fractal\Resource\Item($profile, new AccountTransformer());
return [
'accounts' => [$fractal->createData($resource)->toArray()],
'hashtags' => [],
'statuses' => []
];
}
protected function resolveLocalProfileId()
{
$query = urldecode($this->query->input('q'));
$query = last(explode('/', parse_url($query, PHP_URL_PATH)));
$profile = Profile::whereNull('status')
->find($query);
if(!$profile) {
return [
'accounts' => [],
'hashtags' => [],
'statuses' => []
];
}
$fractal = new Fractal\Manager();
$fractal->setSerializer(new ArraySerializer());
$resource = new Fractal\Resource\Item($profile, new AccountTransformer());
return [
'accounts' => [$fractal->createData($resource)->toArray()],
'hashtags' => [],
'statuses' => []
];
}
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}