An unofficial mirror of the Tiny Tiny RSS, an open-source RSS feed reader and aggregator https://git.tt-rss.org/fox/tt-rss
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tt-rss/functions.php

225 lines
5.4 KiB

<?
require_once 'config.php';
function update_all_feeds($link, $fetch) {
if (WEB_DEMO_MODE) return;
pg_query("BEGIN");
if (!$fetch) {
$result = pg_query($link, "SELECT feed_url,id FROM ttrss_feeds WHERE
last_updated is null OR title = '' OR
EXTRACT(EPOCH FROM NOW()) - EXTRACT(EPOCH FROM last_updated) > " .
MIN_UPDATE_TIME);
} else {
$result = pg_query($link, "SELECT feed_url,id FROM ttrss_feeds");
}
while ($line = pg_fetch_assoc($result)) {
update_rss_feed($link, $line["feed_url"], $line["id"]);
}
pg_query("COMMIT");
}
function check_feed_favicon($feed_url, $feed) {
$feed_url = str_replace("http://", "", $feed_url);
$feed_url = preg_replace("/\/.*$/", "", $feed_url);
$icon_url = "http://$feed_url/favicon.ico";
$icon_file = ICONS_DIR . "/$feed.ico";
if (!file_exists($icon_file)) {
error_reporting(0);
$r = fopen($icon_url, "r");
error_reporting (E_ERROR | E_WARNING | E_PARSE);
if ($r) {
$tmpfname = tempnam("/tmp", "ttrssicon");
$t = fopen($tmpfname, "w");
while (!feof($r)) {
$buf = fread($r, 16384);
fwrite($t, $buf);
}
fclose($r);
fclose($t);
rename($tmpfname, $icon_file);
}
}
}
function update_rss_feed($link, $feed_url, $feed) {
if (WEB_DEMO_MODE) return;
error_reporting(0);
$rss = fetch_rss($feed_url);
error_reporting (E_ERROR | E_WARNING | E_PARSE);
pg_query("BEGIN");
if ($rss) {
if (ENABLE_FEED_ICONS) {
check_feed_favicon($feed_url, $feed);
}
$result = pg_query("SELECT title FROM ttrss_feeds WHERE id = '$feed'");
$registered_title = pg_fetch_result($result, 0, "title");
if (!$registered_title) {
$feed_title = $rss->channel["title"];
pg_query("UPDATE ttrss_feeds SET title = '$feed_title' WHERE id = '$feed'");
}
foreach ($rss->items as $item) {
$entry_guid = $item["id"];
if (!$entry_guid) $entry_guid = $item["guid"];
if (!$entry_guid) $entry_guid = $item["link"];
if (!$entry_guid) continue;
$entry_timestamp = "";
$rss_2_date = $item['pubdate'];
$rss_1_date = $item['dc']['date'];
$atom_date = $item['issued'];
if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
if ($entry_timestamp == "") {
$entry_timestamp = time();
$no_orig_date = 'true';
} else {
$no_orig_date = 'false';
}
$entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
$entry_title = $item["title"];
$entry_link = $item["link"];
if (!$entry_title) continue;
if (!$entry_link) continue;
$entry_content = $item["description"];
if (!$entry_content) $entry_content = $item["content:escaped"];
if (!$entry_content) $entry_content = $item["content"];
if (!$entry_content) continue;
$content_hash = "SHA1:" . sha1(strip_tags($entry_content));
$result = pg_query($link, "
SELECT
id,last_read,no_orig_date,title,feed_id,content_hash,
EXTRACT(EPOCH FROM updated) as updated_timestamp
FROM
ttrss_entries
WHERE
guid = '$entry_guid'");
if (pg_num_rows($result) == 0) {
$entry_content = pg_escape_string($entry_content);
$entry_title = pg_escape_string($entry_title);
$entry_link = pg_escape_string($entry_link);
$query = "INSERT
INTO ttrss_entries
(title,
guid,
link,
updated,
content,
content_hash,
feed_id,
no_orig_date)
VALUES
('$entry_title',
'$entry_guid',
'$entry_link',
'$entry_timestamp_fmt',
'$entry_content',
'$content_hash',
'$feed',
$no_orig_date)";
$result = pg_query($link, $query);
} else {
$orig_entry_id = pg_fetch_result($result, 0, "id");
$orig_feed_id = pg_fetch_result($result, 0, "feed_id");
if ($orig_feed_id != $feed) {
// print "<p>Update from different feed ($orig_feed_id, $feed): $entry_guid [$entry_title]";
continue;
}
$orig_timestamp = pg_fetch_result($result, 0, "updated_timestamp");
$orig_content_hash = pg_fetch_result($result, 0, "content_hash");
$orig_last_read = pg_fetch_result($result, 0, "last_read");
$orig_no_orig_date = pg_fetch_result($result, 0, "no_orig_date");
$orig_title = pg_fetch_result($result, 0, "title");
if ($orig_title != $entry_title) {
$last_read_qpart = 'last_read = null,';
}
if ($orig_content_hash != $content_hash) {
$last_read_qpart = 'last_read = null,';
}
// if ($orig_timestamp < $entry_timestamp) {
// $last_read_qpart = 'last_read = null,';
// }
$entry_content = pg_escape_string($entry_content);
$entry_title = pg_escape_string($entry_title);
$entry_link = pg_escape_string($entry_link);
$query = "UPDATE ttrss_entries
SET
$last_read_qpart
title = '$entry_title',
link = '$entry_link',
updated = '$entry_timestamp_fmt',
content = '$entry_content',
content_hash = '$content_hash'
WHERE
id = '$orig_entry_id'";
$result = pg_query($link, $query);
}
}
if ($result) {
$result = pg_query($link, "UPDATE ttrss_feeds SET last_updated = NOW()");
}
}
pg_query("COMMIT");
}
?>