include/digest.php

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