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