src/Core/Search.php

   1 <?php
   2
   3 namespace Friendica\Core;
   4
   5 use Friendica\BaseObject;
   6 use Friendica\Database\DBA;
   7 use Friendica\Model\Contact;
   8 use Friendica\Network\HTTPException;
   9 use Friendica\Network\Probe;
  10 use Friendica\Object\Search\ContactResult;
  11 use Friendica\Object\Search\ResultList;
  12 use Friendica\Protocol\PortableContact;
  13 use Friendica\Util\Network;
  14 use Friendica\Util\Strings;
  15
  16 /**
  17  * Specific class to perform searches for different systems. Currently:
  18  * - Probe for contacts
  19  * - Search in the local directory
  20  * - Search in the global directory
  21  */
  22 class Search extends BaseObject
  23 {
  24         const DEFAULT_DIRECTORY = 'https://dir.friendica.social';
  25
  26         const TYPE_PEOPLE = 0;
  27         const TYPE_FORUM  = 1;
  28         const TYPE_ALL    = 2;
  29
  30         /**
  31          * Search a user based on his/her profile address
  32          * pattern: @username@domain.tld
  33          *
  34          * @param string $user The user to search for
  35          *
  36          * @return ResultList|null
  37          * @throws HTTPException\InternalServerErrorException
  38          * @throws \ImagickException
  39          */
  40         public static function getContactsFromProbe($user)
  41         {
  42                 if ((filter_var($user, FILTER_VALIDATE_EMAIL) && Network::isEmailDomainValid($user)) ||
  43                     (substr(Strings::normaliseLink($user), 0, 7) == "http://")) {
  44
  45                         $user_data = Probe::uri($user);
  46                         if (empty($user_data)) {
  47                                 return null;
  48                         }
  49
  50                         if (!(in_array($user_data["network"], [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::OSTATUS, Protocol::DIASPORA]))) {
  51                                 return null;
  52                         }
  53
  54                         $contactDetails = Contact::getDetailsByURL(defaults($user_data, 'url', ''), local_user());
  55                         $itemUrl        = (($contactDetails["addr"] != "") ? $contactDetails["addr"] : defaults($user_data, 'url', ''));
  56
  57                         $result = new ContactResult(
  58                                 defaults($user_data, 'name', ''),
  59                                 defaults($user_data, 'addr', ''),
  60                                 $itemUrl,
  61                                 defaults($user_data, 'url', ''),
  62                                 defaults($user_data, 'photo', ''),
  63                                 defaults($user_data, 'network', ''),
  64                                 defaults($contactDetails, 'cid', 0),
  65                                 0,
  66                                 defaults($user_data, 'tags', '')
  67                         );
  68
  69                         return new ResultList(1, 1, 1, [$result]);
  70
  71                 } else {
  72                         return null;
  73                 }
  74         }
  75
  76         /**
  77          * Search in the global directory for occurrences of the search string
  78          *
  79          * @see https://github.com/friendica/friendica-directory/blob/master/docs/Protocol.md#search
  80          *
  81          * @param string $search
  82          * @param int    $type specific type of searching
  83          * @param int    $page
  84          *
  85          * @return ResultList|null
  86          * @throws HTTPException\InternalServerErrorException
  87          */
  88         public static function getContactsFromGlobalDirectory($search, $type = self::TYPE_ALL, $page = 1)
  89         {
  90                 $config = self::getApp()->getConfig();
  91                 $server = $config->get('system', 'directory', self::DEFAULT_DIRECTORY);
  92
  93                 $searchUrl = $server . '/search';
  94
  95                 switch ($type) {
  96                         case self::TYPE_FORUM:
  97                                 $searchUrl .= '/forum';
  98                                 break;
  99                         case self::TYPE_PEOPLE:
 100                                 $searchUrl .= '/people';
 101                                 break;
 102                 }
 103                 $searchUrl .= '?q=' . urlencode($search);
 104
 105                 if ($page > 1) {
 106                         $searchUrl .= '&page=' . $page;
 107                 }
 108
 109                 $red        = 0;
 110                 $resultJson = Network::fetchUrl($searchUrl, false, $red, 0, 'application/json');
 111
 112                 $results = json_decode($resultJson, true);
 113
 114                 $resultList = new ResultList(
 115                         defaults($results, 'page', 1),
 116                         defaults($results, 'count', 1),
 117                         defaults($results, 'itemsperpage', 1)
 118                 );
 119
 120                 $profiles = defaults($results, 'profiles', []);
 121
 122                 foreach ($profiles as $profile) {
 123                         $contactDetails = Contact::getDetailsByURL(defaults($profile, 'profile_url', ''), local_user());
 124                         $itemUrl        = (!empty($contactDetails['addr']) ?
 125                                 $contactDetails['addr'] :
 126                                 defaults($profile, 'profile_url', ''));
 127
 128                         $result = new ContactResult(
 129                                 defaults($profile, 'name', ''),
 130                                 defaults($profile, 'addr', ''),
 131                                 $itemUrl,
 132                                 defaults($profile, 'profile_url', ''),
 133                                 defaults($profile, 'photo', ''),
 134                                 Protocol::DFRN,
 135                                 defaults($contactDetails, 'cid', 0),
 136                                 0,
 137                                 defaults($profile, 'tags', ''));
 138
 139                         $resultList->addResult($result);
 140                 }
 141
 142                 return $resultList;
 143         }
 144
 145         /**
 146          * Search in the local database for occurrences of the search string
 147          *
 148          * @param string $search
 149          * @param int    $type
 150          * @param int    $start
 151          * @param int    $itemPage
 152          *
 153          * @return ResultList|null
 154          * @throws HTTPException\InternalServerErrorException
 155          */
 156         public static function getContactsFromLocalDirectory($search, $type = self::TYPE_ALL, $start = 0, $itemPage = 80)
 157         {
 158                 $config = self::getApp()->getConfig();
 159
 160                 $diaspora = $config->get('system', 'diaspora_enabled') ? Protocol::DIASPORA : Protocol::DFRN;
 161                 $ostatus  = !$config->get('system', 'ostatus_disabled') ? Protocol::OSTATUS : Protocol::DFRN;
 162
 163                 $wildcard = Strings::escapeHtml('%' . $search . '%');
 164
 165                 $count = DBA::count('gcontact', [
 166                         'NOT `hide`
 167                         AND `network` IN (?, ?, ?, ?)
 168                         AND ((`last_contact` >= `last_failure`) OR (`updated` >= `last_failure`))
 169                         AND (`url` LIKE ? OR `name` LIKE ? OR `location` LIKE ?
 170                                 OR `addr` LIKE ? OR `about` LIKE ? OR `keywords` LIKE ?)
 171                         AND `community` = ?',
 172                         Protocol::ACTIVITYPUB, Protocol::DFRN, $ostatus, $diaspora,
 173                         $wildcard, $wildcard, $wildcard,
 174                         $wildcard, $wildcard, $wildcard,
 175                         ($type === self::TYPE_FORUM),
 176                 ]);
 177
 178                 if (empty($count)) {
 179                         return null;
 180                 }
 181
 182                 $data = DBA::select('gcontact', ['nurl'], [
 183                         'NOT `hide`
 184                         AND `network` IN (?, ?, ?, ?)
 185                         AND ((`last_contact` >= `last_failure`) OR (`updated` >= `last_failure`))
 186                         AND (`url` LIKE ? OR `name` LIKE ? OR `location` LIKE ?
 187                                 OR `addr` LIKE ? OR `about` LIKE ? OR `keywords` LIKE ?)
 188                         AND `community` = ?',
 189                         Protocol::ACTIVITYPUB, Protocol::DFRN, $ostatus, $diaspora,
 190                         $wildcard, $wildcard, $wildcard,
 191                         $wildcard, $wildcard, $wildcard,
 192                         ($type === self::TYPE_FORUM),
 193                 ], [
 194                         'group_by' => ['nurl', 'updated'],
 195                         'limit'    => [$start, $itemPage],
 196                         'order'    => ['updated' => 'DESC']
 197                 ]);
 198
 199                 if (!DBA::isResult($data)) {
 200                         return null;
 201                 }
 202
 203                 $resultList = new ResultList($start, $itemPage, $count);
 204
 205                 while ($row = DBA::fetch($data)) {
 206                         if (PortableContact::alternateOStatusUrl($row["nurl"])) {
 207                                 continue;
 208                         }
 209
 210                         $urlParts = parse_url($row["nurl"]);
 211
 212                         // Ignore results that look strange.
 213                         // For historic reasons the gcontact table does contain some garbage.
 214                         if (!empty($urlParts['query']) || !empty($urlParts['fragment'])) {
 215                                 continue;
 216                         }
 217
 218                         $contact = Contact::getDetailsByURL($row["nurl"], local_user());
 219
 220                         if ($contact["name"] == "") {
 221                                 $contact["name"] = end(explode("/", $urlParts["path"]));
 222                         }
 223
 224                         $result = new ContactResult(
 225                                 $contact["name"],
 226                                 $contact["addr"],
 227                                 $contact["addr"],
 228                                 $contact["url"],
 229                                 $contact["photo"],
 230                                 $contact["network"],
 231                                 $contact["cid"],
 232                                 $contact["zid"],
 233                                 $contact["keywords"]
 234                         );
 235
 236                         $resultList->addResult($result);
 237                 }
 238
 239                 DBA::close($data);
 240
 241                 // Add found profiles from the global directory to the local directory
 242                 Worker::add(PRIORITY_LOW, 'DiscoverPoCo', "dirsearch", urlencode($search));
 243
 244                 return $resultList;
 245         }
 246 }