src/Model/FContact.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2020, Friendica
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Model;
  23
  24 use Friendica\Core\Logger;
  25 use Friendica\Core\Protocol;
  26 use Friendica\Database\DBA;
  27 use Friendica\DI;
  28 use Friendica\Network\Probe;
  29 use Friendica\Protocol\Activity;
  30 use Friendica\Util\DateTimeFormat;
  31 use Friendica\Util\Strings;
  32
  33 class FContact
  34 {
  35         /**
  36          * Fetches data for a given handle
  37          *
  38          * @param string $handle The handle
  39          * @param boolean $update true = always update, false = never update, null = update when not found or outdated
  40          *
  41          * @return array the queried data
  42          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  43          * @throws \ImagickException
  44          */
  45         public static function getByURL($handle, $update = null, $network = Protocol::DIASPORA)
  46         {
  47                 $person = DBA::selectFirst('fcontact', [], ['network' => $network, 'addr' => $handle]);
  48                 if (!DBA::isResult($person)) {
  49                         $urls = [$handle, str_replace('http://', 'https://', $handle), Strings::normaliseLink($handle)];
  50                         $person = DBA::selectFirst('fcontact', [], ['network' => $network, 'url' => $urls]);
  51                 }
  52
  53                 if (DBA::isResult($person)) {
  54                         Logger::debug('In cache', ['person' => $person]);
  55
  56                         if (is_null($update)) {
  57                                 // update record occasionally so it doesn't get stale
  58                                 $d = strtotime($person["updated"]." +00:00");
  59                                 if ($d < strtotime("now - 14 days")) {
  60                                         $update = true;
  61                                 }
  62
  63                                 if ($person["guid"] == "") {
  64                                         $update = true;
  65                                 }
  66                         }
  67                 } elseif (is_null($update)) {
  68                         $update = !DBA::isResult($person);
  69                 } else {
  70                         $person = [];
  71                 }
  72
  73                 if ($update) {
  74                         Logger::info('create or refresh', ['handle' => $handle]);
  75                         $r = Probe::uri($handle, $network);
  76
  77                         // Note that Friendica contacts will return a "Diaspora person"
  78                         // if Diaspora connectivity is enabled on their server
  79                         if ($r && ($r["network"] === $network)) {
  80                                 self::updateFContact($r);
  81
  82                                 $person = self::getByURL($handle, false, $network);
  83                         }
  84                 }
  85
  86                 return $person;
  87         }
  88
  89         /**
  90          * Updates the fcontact table
  91          *
  92          * @param array $arr The fcontact data
  93          * @throws \Exception
  94          */
  95         private static function updateFContact($arr)
  96         {
  97                 $fields = ['name' => $arr["name"], 'photo' => $arr["photo"],
  98                         'request' => $arr["request"], 'nick' => $arr["nick"],
  99                         'addr' => strtolower($arr["addr"]), 'guid' => $arr["guid"],
 100                         'batch' => $arr["batch"], 'notify' => $arr["notify"],
 101                         'poll' => $arr["poll"], 'confirm' => $arr["confirm"],
 102                         'alias' => $arr["alias"], 'pubkey' => $arr["pubkey"],
 103                         'updated' => DateTimeFormat::utcNow()];
 104
 105                 $condition = ['url' => $arr["url"], 'network' => $arr["network"]];
 106
 107                 DBA::update('fcontact', $fields, $condition, true);
 108         }
 109
 110         /**
 111          * get a url (scheme://domain.tld/u/user) from a given Diaspora*
 112          * fcontact guid
 113          *
 114          * @param mixed $fcontact_guid Hexadecimal string guid
 115          *
 116          * @return string the contact url or null
 117          * @throws \Exception
 118          */
 119         public static function getUrlByGuid($fcontact_guid)
 120         {
 121                 Logger::info('fcontact', ['guid' => $fcontact_guid]);
 122
 123                 $r = q(
 124                         "SELECT `url` FROM `fcontact` WHERE `url` != '' AND `network` = '%s' AND `guid` = '%s'",
 125                         DBA::escape(Protocol::DIASPORA),
 126                         DBA::escape($fcontact_guid)
 127                 );
 128
 129                 if (DBA::isResult($r)) {
 130                         return $r[0]['url'];
 131                 }
 132
 133                 return null;
 134         }
 135
 136         /**
 137          * Suggest a given contact to a given user from a given contact
 138          *
 139          * @param integer $uid
 140          * @param integer $cid
 141          * @param integer $from_cid
 142          * @return bool   Was the adding successful?
 143          */
 144         public static function addSuggestion(int $uid, int $cid, int $from_cid, string $note = '')
 145         {
 146                 $owner = User::getOwnerDataById($uid);
 147                 $contact = Contact::getById($cid);
 148                 $from_contact = Contact::getById($from_cid);
 149
 150                 if (DBA::exists('contact', ['nurl' => Strings::normaliseLink($contact['url']), 'uid' => $uid])) {
 151                         return false;
 152                 }
 153
 154                 $fcontact = self::getByURL($contact['url'], null, $contact['network']);
 155                 if (empty($fcontact)) {
 156                         Logger::warning('FContact had not been found', ['fcontact' => $contact['url']]);
 157                         return false;
 158                 }
 159
 160                 $fid = $fcontact['id'];
 161
 162                 // Quit if we already have an introduction for this person
 163                 if (DBA::exists('intro', ['uid' => $uid, 'fid' => $fid])) {
 164                         return false;
 165                 }
 166
 167                 $suggest = [];
 168                 $suggest['uid'] = $uid;
 169                 $suggest['cid'] = $from_cid;
 170                 $suggest['url'] = $contact['url'];
 171                 $suggest['name'] = $contact['name'];
 172                 $suggest['photo'] = $contact['photo'];
 173                 $suggest['request'] = $contact['request'];
 174                 $suggest['title'] = '';
 175                 $suggest['body'] = $note;
 176
 177                 $hash = Strings::getRandomHex();
 178                 $fields = ['uid' => $suggest['uid'], 'fid' => $fid, 'contact-id' => $suggest['cid'],
 179                         'note' => $suggest['body'], 'hash' => $hash, 'datetime' => DateTimeFormat::utcNow(), 'blocked' => false];
 180                 DBA::insert('intro', $fields);
 181
 182                 notification([
 183                         'type'  => Notification\Type::SUGGEST,
 184                         'otype' => Notification\ObjectType::INTRO,
 185                         'verb'  => Activity::REQ_FRIEND,
 186                         'uid'   => $owner['uid'],
 187                         'cid'   => $from_contact['uid'],
 188                         'item'  => $suggest,
 189                         'link'  => DI::baseUrl().'/notifications/intros',
 190                 ]);
 191
 192                 return true;
 193         }
 194 }