classes/digest.php

   1 <?php
   2 class Digest
   3 {
   4
   5         /**
   6          * Send by mail a digest of last articles.
   7          *
   8          * @param mixed $link The database connection.
   9          * @param integer $limit The maximum number of articles by digest.
  10          * @return boolean Return false if digests are not enabled.
  11          */
  12         static function send_headlines_digests($debug = false) {
  13
  14                 require_once 'classes/ttrssmailer.php';
  15
  16                 $user_limit = 15; // amount of users to process (e.g. emails to send out)
  17                 $limit = 1000; // maximum amount of headlines to include
  18
  19                 if ($debug) _debug("Sending digests, batch of max $user_limit users, headline limit = $limit");
  20
  21                 if (DB_TYPE == "pgsql") {
  22                         $interval_qpart = "last_digest_sent < NOW() - INTERVAL '1 days'";
  23                 } else if (DB_TYPE == "mysql") {
  24                         $interval_qpart = "last_digest_sent < DATE_SUB(NOW(), INTERVAL 1 DAY)";
  25                 }
  26
  27                 $pdo = Db::pdo();
  28
  29                 $res = $pdo->query("SELECT id,email FROM ttrss_users
  30                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_qpart)");
  31
  32                 while ($line = $res->fetch()) {
  33
  34                         if (@get_pref('DIGEST_ENABLE', $line['id'], false)) {
  35                                 $preferred_ts = strtotime(get_pref('DIGEST_PREFERRED_TIME', $line['id'], '00:00'));
  36
  37                                 // try to send digests within 2 hours of preferred time
  38                                 if ($preferred_ts && time() >= $preferred_ts &&
  39                                         time() - $preferred_ts <= 7200
  40                                 ) {
  41
  42                                         if ($debug) _debug("Sending digest for UID:" . $line['id'] . " - " . $line["email"]);
  43
  44                                         $do_catchup = get_pref('DIGEST_CATCHUP', $line['id'], false);
  45
  46                                         global $tz_offset;
  47
  48                                         // reset tz_offset global to prevent tz cache clash between users
  49                                         $tz_offset = -1;
  50
  51                                         $tuple = Digest::prepare_headlines_digest($line["id"], 1, $limit);
  52                                         $digest = $tuple[0];
  53                                         $headlines_count = $tuple[1];
  54                                         $affected_ids = $tuple[2];
  55                                         $digest_text = $tuple[3];
  56
  57                                         if ($headlines_count > 0) {
  58
  59                                                 $mail = new ttrssMailer();
  60
  61                                                 $rc = $mail->quickMail($line["email"], $line["login"], DIGEST_SUBJECT, $digest, $digest_text);
  62
  63                                                 if (!$rc && $debug) _debug("ERROR: " . $mail->ErrorInfo);
  64
  65                                                 if ($debug) _debug("RC=$rc");
  66
  67                                                 if ($rc && $do_catchup) {
  68                                                         if ($debug) _debug("Marking affected articles as read...");
  69                                                         Article::catchupArticlesById($affected_ids, 0, $line["id"]);
  70                                                 }
  71                                         } else {
  72                                                 if ($debug) _debug("No headlines");
  73                                         }
  74
  75                                         $sth = $pdo->prepare("UPDATE ttrss_users SET last_digest_sent = NOW()
  76                                                 WHERE id = ?");
  77                                         $sth->execute([$line["id"]]);
  78
  79                                 }
  80                         }
  81                 }
  82
  83                 if ($debug) _debug("All done.");
  84
  85         }
  86
  87         static function prepare_headlines_digest($user_id, $days = 1, $limit = 1000) {
  88
  89                 require_once "lib/MiniTemplator.class.php";
  90
  91                 $tpl = new MiniTemplator;
  92                 $tpl_t = new MiniTemplator;
  93
  94                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
  95                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
  96
  97                 $user_tz_string = get_pref('USER_TIMEZONE', $user_id);
  98                 $local_ts = convert_timestamp(time(), 'UTC', $user_tz_string);
  99
 100                 $tpl->setVariable('CUR_DATE', date('Y/m/d', $local_ts));
 101                 $tpl->setVariable('CUR_TIME', date('G:i', $local_ts));
 102
 103                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d', $local_ts));
 104                 $tpl_t->setVariable('CUR_TIME', date('G:i', $local_ts));
 105
 106                 $affected_ids = array();
 107
 108                 $days = (int) $days;
 109
 110                 if (DB_TYPE == "pgsql") {
 111                         $interval_qpart = "ttrss_entries.date_updated > NOW() - INTERVAL '$days days'";
 112                 } else if (DB_TYPE == "mysql") {
 113                         $interval_qpart = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
 114                 }
 115
 116                 $pdo = Db::pdo();
 117
 118                 $sth = $pdo->prepare("SELECT ttrss_entries.title,
 119                                 ttrss_feeds.title AS feed_title,
 120                                 COALESCE(ttrss_feed_categories.title, '" . __('Uncategorized') . "') AS cat_title,
 121                                 date_updated,
 122                                 ttrss_user_entries.ref_id,
 123                                 link,
 124                                 score,
 125                                 content,
 126                                 " . SUBSTRING_FOR_DATE . "(last_updated,1,19) AS last_updated
 127                         FROM
 128                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
 129                         LEFT JOIN
 130                                 ttrss_feed_categories ON (cat_id = ttrss_feed_categories.id)
 131                         WHERE
 132                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
 133                                 AND include_in_digest = true
 134                                 AND $interval_qpart
 135                                 AND ttrss_user_entries.owner_uid = :user_id
 136                                 AND unread = true
 137                                 AND score >= 0
 138                         ORDER BY ttrss_feed_categories.title, ttrss_feeds.title, score DESC, date_updated DESC
 139                         LIMIT :limit");
 140                 $sth->bindParam(':user_id', intval($user_id, 10), \PDO::PARAM_INT);
 141                 $sth->bindParam(':limit', intval($limit, 10), \PDO::PARAM_INT);
 142                 $sth->execute();
 143
 144                 $headlines_count = 0;
 145                 $headlines = array();
 146
 147                 while ($line = $sth->fetch()) {
 148                         array_push($headlines, $line);
 149                         $headlines_count++;
 150                 }
 151
 152                 for ($i = 0; $i < sizeof($headlines); $i++) {
 153
 154                         $line = $headlines[$i];
 155
 156                         array_push($affected_ids, $line["ref_id"]);
 157
 158                         $updated = make_local_datetime($line['last_updated'], false,
 159                                 $user_id);
 160
 161                         if (get_pref('ENABLE_FEED_CATS', $user_id)) {
 162                                 $line['feed_title'] = $line['cat_title'] . " / " . $line['feed_title'];
 163                         }
 164
 165                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
 166                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
 167                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
 168                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
 169                         $tpl->setVariable('ARTICLE_EXCERPT',
 170                                 truncate_string(strip_tags($line["content"]), 300));
 171 //                      $tpl->setVariable('ARTICLE_CONTENT',
 172 //                              strip_tags($article_content));
 173
 174                         $tpl->addBlock('article');
 175
 176                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
 177                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
 178                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
 179                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
 180 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
 181 //                              truncate_string(strip_tags($line["excerpt"]), 100));
 182
 183                         $tpl_t->addBlock('article');
 184
 185                         if ($headlines[$i]['feed_title'] != $headlines[$i + 1]['feed_title']) {
 186                                 $tpl->addBlock('feed');
 187                                 $tpl_t->addBlock('feed');
 188                         }
 189
 190                 }
 191
 192                 $tpl->addBlock('digest');
 193                 $tpl->generateOutputToString($tmp);
 194
 195                 $tpl_t->addBlock('digest');
 196                 $tpl_t->generateOutputToString($tmp_t);
 197
 198                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
 199         }
 200
 201 }