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base if-modified-since on last received article, not feed update timestamp

This commit is contained in:
Andrew Dolgov 2013-04-25 18:42:48 +04:00
parent 90a372f51d
commit 90e5f4f1de
3 changed files with 12 additions and 7 deletions
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3
classes/feeds.php
View File

@ -250,7 +250,8 @@ class Feeds extends Handler_Protected {
$feed_title = $qfh_ret[1];
$feed_site_url = $qfh_ret[2];
$last_error = $qfh_ret[3];
$last_updated = make_local_datetime($qfh_ret[4], false);
$last_updated = strpos($qfh_ret[4], '1970-') === FALSE ?
make_local_datetime($qfh_ret[4], false) : __("Never");
$vgroup_last_feed = $vgr_last_feed;

2
include/functions.php
View File

@ -855,6 +855,8 @@
global $utc_tz;
global $tz_offset;
$timestamp = substr($timestamp, 0, 19);
# We store date in UTC internally
$dt = new DateTime($timestamp, $utc_tz);

14
include/rssfuncs.php
View File

@ -202,7 +202,9 @@
$result = db_query("SELECT id,update_interval,auth_login,
feed_url,auth_pass,cache_images,last_updated,
mark_unread_on_update, owner_uid,
pubsub_state, auth_pass_encrypted
pubsub_state, auth_pass_encrypted,
(SELECT max(date_entered) FROM
ttrss_entries, ttrss_user_entries where ref_id = id AND feed_id = '$feed') AS last_article_timestamp
FROM ttrss_feeds WHERE id = '$feed'");
if (db_num_rows($result) == 0) {
@ -211,6 +213,7 @@
}
$last_updated = db_fetch_result($result, 0, "last_updated");
$last_article_timestamp = @strtotime(db_fetch_result($result, 0, "last_article_timestamp"));
$owner_uid = db_fetch_result($result, 0, "owner_uid");
$mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result,
0, "mark_unread_on_update"));
@ -251,7 +254,6 @@
$rss = false;
$rss_hash = false;
$cache_timestamp = file_exists($cache_filename) ? filemtime($cache_filename) : 0;
$last_updated_timestamp = strtotime($last_updated);
$force_refetch = isset($_REQUEST["force_refetch"]);
@ -262,7 +264,7 @@
_debug("using local cache.", $debug_enabled);
if ($cache_timestamp > $last_updated_timestamp) {
if ($cache_timestamp > $last_article_timestamp) {
@$rss_data = file_get_contents($cache_filename);
if ($rss_data) {
@ -275,18 +277,18 @@
}
} else {
_debug("local cache will not be used for this feed", $debug_enabled);
$cache_timestamp = 0;
}
if (!$rss) {
if (!$feed_data) {
_debug("fetching [$fetch_url] (ts: $cache_timestamp/$last_updated_timestamp)", $debug_enabled);
_debug("fetching [$fetch_url]...", $debug_enabled);
_debug("If-Modified-Since: ".gmdate('D, d M Y H:i:s \G\M\T', $last_article_timestamp), $debug_enabled);
$feed_data = fetch_file_contents($fetch_url, false,
$auth_login, $auth_pass, false,
$no_cache ? FEED_FETCH_NO_CACHE_TIMEOUT : FEED_FETCH_TIMEOUT,
$force_refetch ? 0 : max($last_updated_timestamp, $cache_timestamp));
$force_refetch ? 0 : $last_article_timestamp);
global $fetch_curl_used;