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_query = "last_digest_sent < NOW() - INTERVAL '1 days'";
  23                 } else if (DB_TYPE == "mysql") {
  24                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL 1 DAY)";
  25                 }
  26
  27                 $result = db_query("SELECT id,email FROM ttrss_users
  28                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
  29
  30                 while ($line = db_fetch_assoc($result)) {
  31
  32                         if (@get_pref('DIGEST_ENABLE', $line['id'], false)) {
  33                                 $preferred_ts = strtotime(get_pref('DIGEST_PREFERRED_TIME', $line['id'], '00:00'));
  34
  35                                 // try to send digests within 2 hours of preferred time
  36                                 if ($preferred_ts && time() >= $preferred_ts &&
  37                                         time() - $preferred_ts <= 7200
  38                                 ) {
  39
  40                                         if ($debug) _debug("Sending digest for UID:" . $line['id'] . " - " . $line["email"]);
  41
  42                                         $do_catchup = get_pref('DIGEST_CATCHUP', $line['id'], false);
  43
  44                                         global $tz_offset;
  45
  46                                         // reset tz_offset global to prevent tz cache clash between users
  47                                         $tz_offset = -1;
  48
  49                                         $tuple = Digest::prepare_headlines_digest($line["id"], 1, $limit);
  50                                         $digest = $tuple[0];
  51                                         $headlines_count = $tuple[1];
  52                                         $affected_ids = $tuple[2];
  53                                         $digest_text = $tuple[3];
  54
  55                                         if ($headlines_count > 0) {
  56
  57                                                 $mail = new ttrssMailer();
  58
  59                                                 $rc = $mail->quickMail($line["email"], $line["login"], DIGEST_SUBJECT, $digest, $digest_text);
  60
  61                                                 if (!$rc && $debug) _debug("ERROR: " . $mail->ErrorInfo);
  62
  63                                                 if ($debug) _debug("RC=$rc");
  64
  65                                                 if ($rc && $do_catchup) {
  66                                                         if ($debug) _debug("Marking affected articles as read...");
  67                                                         Article::catchupArticlesById($affected_ids, 0, $line["id"]);
  68                                                 }
  69                                         } else {
  70                                                 if ($debug) _debug("No headlines");
  71                                         }
  72
  73                                         db_query("UPDATE ttrss_users SET last_digest_sent = NOW()
  74                                                 WHERE id = " . $line["id"]);
  75
  76                                 }
  77                         }
  78                 }
  79
  80                 if ($debug) _debug("All done.");
  81
  82         }
  83
  84         static function prepare_headlines_digest($user_id, $days = 1, $limit = 1000) {
  85
  86                 require_once "lib/MiniTemplator.class.php";
  87
  88                 $tpl = new MiniTemplator;
  89                 $tpl_t = new MiniTemplator;
  90
  91                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
  92                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
  93
  94                 $user_tz_string = get_pref('USER_TIMEZONE', $user_id);
  95                 $local_ts = convert_timestamp(time(), 'UTC', $user_tz_string);
  96
  97                 $tpl->setVariable('CUR_DATE', date('Y/m/d', $local_ts));
  98                 $tpl->setVariable('CUR_TIME', date('G:i', $local_ts));
  99
 100                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d', $local_ts));
 101                 $tpl_t->setVariable('CUR_TIME', date('G:i', $local_ts));
 102
 103                 $affected_ids = array();
 104
 105                 if (DB_TYPE == "pgsql") {
 106                         $interval_query = "ttrss_entries.date_updated > NOW() - INTERVAL '$days days'";
 107                 } else if (DB_TYPE == "mysql") {
 108                         $interval_query = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
 109                 }
 110
 111                 $result = db_query("SELECT ttrss_entries.title,
 112                                 ttrss_feeds.title AS feed_title,
 113                                 COALESCE(ttrss_feed_categories.title, '" . __('Uncategorized') . "') AS cat_title,
 114                                 date_updated,
 115                                 ttrss_user_entries.ref_id,
 116                                 link,
 117                                 score,
 118                                 content,
 119                                 " . SUBSTRING_FOR_DATE . "(last_updated,1,19) AS last_updated
 120                         FROM
 121                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
 122                         LEFT JOIN
 123                                 ttrss_feed_categories ON (cat_id = ttrss_feed_categories.id)
 124                         WHERE
 125                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
 126                                 AND include_in_digest = true
 127                                 AND $interval_query
 128                                 AND ttrss_user_entries.owner_uid = $user_id
 129                                 AND unread = true
 130                                 AND score >= 0
 131                         ORDER BY ttrss_feed_categories.title, ttrss_feeds.title, score DESC, date_updated DESC
 132                         LIMIT $limit");
 133
 134                 $headlines_count = db_num_rows($result);
 135
 136                 $headlines = array();
 137
 138                 while ($line = db_fetch_assoc($result)) {
 139                         array_push($headlines, $line);
 140                 }
 141
 142                 for ($i = 0; $i < sizeof($headlines); $i++) {
 143
 144                         $line = $headlines[$i];
 145
 146                         array_push($affected_ids, $line["ref_id"]);
 147
 148                         $updated = make_local_datetime($line['last_updated'], false,
 149                                 $user_id);
 150
 151                         /*                      if ($line["score"] != 0) {
 152                                                         if ($line["score"] > 0) $line["score"] = '+' . $line["score"];
 153
 154                                                         $line["title"] .= " (".$line['score'].")";
 155                                                 } */
 156
 157                         if (get_pref('ENABLE_FEED_CATS', $user_id)) {
 158                                 $line['feed_title'] = $line['cat_title'] . " / " . $line['feed_title'];
 159                         }
 160
 161                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
 162                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
 163                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
 164                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
 165                         $tpl->setVariable('ARTICLE_EXCERPT',
 166                                 truncate_string(strip_tags($line["content"]), 300));
 167 //                      $tpl->setVariable('ARTICLE_CONTENT',
 168 //                              strip_tags($article_content));
 169
 170                         $tpl->addBlock('article');
 171
 172                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
 173                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
 174                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
 175                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
 176 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
 177 //                              truncate_string(strip_tags($line["excerpt"]), 100));
 178
 179                         $tpl_t->addBlock('article');
 180
 181                         if ($headlines[$i]['feed_title'] != $headlines[$i + 1]['feed_title']) {
 182                                 $tpl->addBlock('feed');
 183                                 $tpl_t->addBlock('feed');
 184                         }
 185
 186                 }
 187
 188                 $tpl->addBlock('digest');
 189                 $tpl->generateOutputToString($tmp);
 190
 191                 $tpl_t->addBlock('digest');
 192                 $tpl_t->generateOutputToString($tmp_t);
 193
 194                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
 195         }
 196
 197 }