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backend.php
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backend.php
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<?php
error_reporting(E_ERROR | E_WARNING | E_PARSE);
/* remove ill effects of magic quotes */
if (get_magic_quotes_gpc()) {
$_REQUEST = array_map('stripslashes', $_REQUEST);
$_POST = array_map('stripslashes', $_POST);
// $_REQUEST = array_map('stripslashes', $_REQUEST);
$_COOKIE = array_map('stripslashes', $_COOKIE);
}
require_once "sessions.php";
require_once "modules/backend-rpc.php";
/* if ($_REQUEST["debug"]) {
define('DEFAULT_ERROR_LEVEL', E_ALL);
} else {
define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
}
error_reporting(DEFAULT_ERROR_LEVEL); */
require_once "sanity_check.php";
require_once "config.php";
require_once "db.php";
require_once "db-prefs.php";
require_once "functions.php";
no_cache_incantation();
if (ENABLE_TRANSLATIONS == true) {
startup_gettext();
}
$script_started = getmicrotime();
$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
if (!$link) {
if (DB_TYPE == "mysql") {
print mysql_error();
}
// PG seems to display its own errors just fine by default.
return;
}
init_connection($link);
$op = $_REQUEST["op"];
$subop = $_REQUEST["subop"];
$mode = $_REQUEST["mode"];
$print_exec_time = false;
if ((!$op || $op == "rpc" || $op == "rss" ||
($op == "view" && $mode != "zoom") ||
$op == "digestSend" || $op == "viewfeed" || $op == "publish" ||
$op == "globalUpdateFeeds") && !$_REQUEST["noxml"]) {
header("Content-Type: application/xml; charset=utf-8");
if (ENABLE_GZIP_OUTPUT) {
ob_start("ob_gzhandler");
}
} else {
if (!$_REQUEST["noxml"]) {
header("Content-Type: text/html; charset=utf-8");
} else {
header("Content-Type: text/plain; charset=utf-8");
}
}
if (!$op) {
header("Content-Type: application/xml");
print_error_xml(7); exit;
}
if (SINGLE_USER_MODE) {
authenticate_user($link, "admin", null);
}
if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds"
&& $op != "rss" && $op != "getUnread" && $op != "publish" && $op != "getProfiles") {
if ($op == "rpc" || $op == "viewfeed" || $op == "view") {
print_error_xml(6); die;
} else {
print "
<html><body>
<p>Error: Not logged in.</p>
<script type=\"text/javascript\">
if (parent.window != 'undefined') {
parent.window.location = \"tt-rss.php\";
} else {
window.location = \"tt-rss.php\";
}
</script>
</body></html>
";
}
exit;
}
$purge_intervals = array(
0 => __("Use default"),
-1 => __("Never purge"),
5 => __("1 week old"),
14 => __("2 weeks old"),
31 => __("1 month old"),
60 => __("2 months old"),
90 => __("3 months old"));
$update_intervals = array(
0 => __("Default interval"),
-1 => __("Disable updates"),
15 => __("Each 15 minutes"),
30 => __("Each 30 minutes"),
60 => __("Hourly"),
240 => __("Each 4 hours"),
720 => __("Each 12 hours"),
1440 => __("Daily"),
10080 => __("Weekly"));
$update_intervals_nodefault = array(
-1 => __("Disable updates"),
15 => __("Each 15 minutes"),
30 => __("Each 30 minutes"),
60 => __("Hourly"),
240 => __("Each 4 hours"),
720 => __("Each 12 hours"),
1440 => __("Daily"),
10080 => __("Weekly"));
$update_methods = array(
0 => __("Default"),
1 => __("Magpie"),
2 => __("SimplePie"));
if (ENABLE_SIMPLEPIE) {
$update_methods[0] .= ' (SimplePie)';
} else {
$update_methods[0] .= ' (Magpie)';
}
$access_level_names = array(
0 => __("User"),
5 => __("Power User"),
10 => __("Administrator"));
require_once "modules/pref-prefs.php";
require_once "modules/popup-dialog.php";
require_once "modules/help.php";
require_once "modules/pref-feeds.php";
require_once "modules/pref-filters.php";
require_once "modules/pref-labels.php";
require_once "modules/pref-users.php";
if (!sanity_check($link)) { return; }
switch($op) { // Select action according to $op value.
case "rpc":
// Handle remote procedure calls.
handle_rpc_request($link);
break; // rpc
case "feeds":
if (ENABLE_GZIP_OUTPUT) {
ob_start("ob_gzhandler");
}
$tags = $_REQUEST["tags"];
$subop = $_REQUEST["subop"];
switch($subop) {
case "catchupAll":
db_query($link, "UPDATE ttrss_user_entries SET
last_read = NOW(),unread = false WHERE owner_uid = " . $_SESSION["uid"]);
ccache_zero_all($link, $_SESSION["uid"]);
break;
case "collapse":
$cat_id = db_escape_string($_REQUEST["cid"]);
toggle_collapse_cat($link, $cat_id);
return;
break;
case "catsortreset":
db_query($link, "UPDATE ttrss_feed_categories
SET order_id = 0 WHERE owner_uid = " . $_SESSION["uid"]);
return;
break;
case "catsort":
$corder = db_escape_string($_REQUEST["corder"]);
$cats = split(",", $corder);
for ($i = 0; $i < count($cats); $i++) {
$cat_id = $cats[$i];
if ($cat_id > 0) {
db_query($link, "UPDATE ttrss_feed_categories
SET order_id = '$i' WHERE id = '$cat_id' AND
owner_uid = " . $_SESSION["uid"]);
}
}
return;
break;
}
$_SESSION["viewfeed:counters_stamp"] = time();
outputFeedList($link, $tags);
break; // feeds
case "view":
$id = db_escape_string($_REQUEST["id"]);
$cids = split(",", db_escape_string($_REQUEST["cids"]));
$mode = db_escape_string($_REQUEST["mode"]);
$omode = db_escape_string($_REQUEST["omode"]);
$csync = $_REQUEST["csync"];
print "<reply>";
// in prefetch mode we only output requested cids, main article
// just gets marked as read (it already exists in client cache)
if ($mode == "") {
outputArticleXML($link, $id, false);
} else if ($mode == "zoom") {
outputArticleXML($link, $id, false, true, true);
} else {
catchupArticleById($link, $id, 0);
}
if (!$_SESSION["bw_limit"]) {
foreach ($cids as $cid) {
if ($cid) {
outputArticleXML($link, $cid, false, false);
}
}
}
// if (get_pref($link, "SYNC_COUNTERS") || ($mode == "prefetch" && $csync)) {
if (time() - $_SESSION["view:counters_stamp"] > 5 && $mode == "prefetch") {
print "<counters>";
getAllCounters($link, $omode);
print "</counters>";
$_SESSION["view:counters_stamp"] = time();
}
print "</reply>";
break; // view
case "viewfeed":
$print_exec_time = true;
$timing_info = getmicrotime();
print "<reply>";
if ($_REQUEST["debug"]) $timing_info = print_checkpoint("0", $timing_info);
$omode = db_escape_string($_REQUEST["omode"]);
$feed = db_escape_string($_REQUEST["feed"]);
$subop = db_escape_string($_REQUEST["subop"]);
$view_mode = db_escape_string($_REQUEST["view_mode"]);
$limit = (int) get_pref($link, "DEFAULT_ARTICLE_LIMIT");
$cat_view = db_escape_string($_REQUEST["cat"]);
$next_unread_feed = db_escape_string($_REQUEST["nuf"]);
$offset = db_escape_string($_REQUEST["skip"]);
$vgroup_last_feed = db_escape_string($_REQUEST["vgrlf"]);
$csync = $_REQUEST["csync"];
$order_by = db_escape_string($_REQUEST["order_by"]);
/* Updating a label ccache means recalculating all of the caches
* so for performance reasons we don't do that here */
// if (time() - $_SESSION["viewfeed:ccache_update_stamp"] > 120) {
if ($feed >= 0) {
ccache_update($link, $feed, $_SESSION["uid"], $cat_view);
}
$_SESSION["viewfeed:ccache_update_stamp"] = time();
// }
set_pref($link, "_DEFAULT_VIEW_MODE", $view_mode);
set_pref($link, "_DEFAULT_VIEW_LIMIT", $limit);
set_pref($link, "_DEFAULT_VIEW_ORDER_BY", $order_by);
if (!$cat_view && preg_match("/^[0-9][0-9]*$/", $feed)) {
db_query($link, "UPDATE ttrss_feeds SET last_viewed = NOW()
WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
}
if (!$next_unread_feed) {
print "<headlines id=\"$feed\" is_cat=\"$cat_view\"><![CDATA[";
} else {
print "<headlines id=\"$next_unread_feed\" is_cat=\"$cat_view\"><![CDATA[";
}
$override_order = false;
switch ($order_by) {
case "date":
if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
$override_order = "updated";
} else {
$override_order = "updated DESC";
}
break;
case "title":
$override_order = "updated DESC";
break;
case "score":
$override_order = "score DESC";
break;
}
$ret = outputHeadlinesList($link, $feed, $subop,
$view_mode, $limit, $cat_view, $next_unread_feed, $offset,
$vgroup_last_feed, $override_order);
$topmost_article_ids = $ret[0];
$headlines_count = $ret[1];
$returned_feed = $ret[2];
$disable_cache = $ret[3];
$vgroup_last_feed = $ret[4];
print "]]></headlines>";
print "<headlines-count value=\"$headlines_count\"/>";
print "<vgroup-last-feed value=\"$vgroup_last_feed\"/>";
$headlines_unread = ccache_find($link, $returned_feed, $_SESSION["uid"],
$cat_view, true);
if ($headlines_unread == -1) {
$headlines_unread = getFeedUnread($link, $returned_feed, $cat_view);
}
print "<headlines-unread value=\"$headlines_unread\"/>";
printf("<disable-cache value=\"%d\"/>", $disable_cache);
if ($_REQUEST["debug"]) $timing_info = print_checkpoint("10", $timing_info);
if (is_array($topmost_article_ids) && !get_pref($link, 'COMBINED_DISPLAY_MODE') && !$_SESSION["bw_limit"]) {
print "<articles>";
foreach ($topmost_article_ids as $id) {
outputArticleXML($link, $id, $feed, false);
}
print "</articles>";
}
if ($_REQUEST["debug"]) $timing_info = print_checkpoint("20", $timing_info);
// if (get_pref($link, "SYNC_COUNTERS") ||
// time() - $_SESSION["get_all_counters_stamp"] > $viewfeed_ctr_interval) {
// print "<counters>";
// getAllCounters($link, $omode, $feed);
// print "</counters>";
// }
if (get_pref($link, 'COMBINED_DISPLAY_MODE') || $subop ||
time() - $_SESSION["viewfeed:counters_stamp"] > 5) {
if (!$offset) {
print "<counters>";
getAllCounters($link, $omode, $feed);
print "</counters>";
$_SESSION["viewfeed:counters_stamp"] = time();
}
}
if ($_REQUEST["debug"]) $timing_info = print_checkpoint("30", $timing_info);
print_runtime_info($link);
print "</reply>";
break; // viewfeed
case "pref-feeds":
module_pref_feeds($link);
break; // pref-feeds
case "pref-filters":
module_pref_filters($link);
break; // pref-filters
case "pref-labels":
module_pref_labels($link);
break; // pref-labels
case "pref-prefs":
module_pref_prefs($link);
break; // pref-prefs
case "pref-users":
module_pref_users($link);
break; // prefs-users
case "help":
module_help($link);
break; // help
case "dlg":
module_popup_dialog($link);
break; // dlg
case "pref-pub-items":
module_pref_pub_items($link);
break; // pref-pub-items
case "globalUpdateFeeds":
// update feeds of all users, may be used anonymously
print "<!--";
// Update all feeds needing a update.
update_daemon_common($link, 0, true, true);
print " -->";
print "<rpc-reply>
<message msg=\"All feeds updated\"/>
</rpc-reply>";
break; // globalUpdateFeeds
case "pref-feed-browser":
module_pref_feed_browser($link);
break; // pref-feed-browser
case "publish":
$key = db_escape_string($_REQUEST["key"]);
$limit = (int)db_escape_string($_REQUEST["limit"]);
$result = db_query($link, "SELECT login, owner_uid
FROM ttrss_user_prefs, ttrss_users WHERE
pref_name = '_PREFS_PUBLISH_KEY' AND
value = '$key' AND
ttrss_users.id = owner_uid");
if (db_num_rows($result) == 1) {
$owner = db_fetch_result($result, 0, "owner_uid");
$login = db_fetch_result($result, 0, "login");
generate_syndicated_feed($link, $owner, -2, false, $limit);
} else {
print "<error>User not found</error>";
}
break; // publish
case "rss":
$feed = db_escape_string($_REQUEST["id"]);
$user = db_escape_string($_REQUEST["user"]);
$pass = db_escape_string($_REQUEST["pass"]);
$is_cat = $_REQUEST["is_cat"] != false;
$limit = (int)db_escape_string($_REQUEST["limit"]);
$search = db_escape_string($_REQUEST["q"]);
$match_on = db_escape_string($_REQUEST["m"]);
$search_mode = db_escape_string($_REQUEST["smode"]);
if (SINGLE_USER_MODE) {
authenticate_user($link, "admin", null);
}
if (!$_SESSION["uid"] && $user && $pass) {
authenticate_user($link, $user, $pass);
}
if ($_SESSION["uid"] ||
http_authenticate_user($link)) {
generate_syndicated_feed($link, 0, $feed, $is_cat, $limit,
$search, $search_mode, $match_on);
}
break; // rss
case "getUnread":
$login = db_escape_string($_REQUEST["login"]);
$fresh = $_REQUEST["fresh"] == "1";
header("Content-Type: text/plain; charset=utf-8");
$result = db_query($link, "SELECT id FROM ttrss_users WHERE login = '$login'");
if (db_num_rows($result) == 1) {
$uid = db_fetch_result($result, 0, "id");
print getGlobalUnread($link, $uid);
if ($fresh) {
print ";";
print getFeedArticles($link, -3, false, true, $uid);
}
} else {
print "-1;User not found";
}
$print_exec_time = false;
break; // getUnread
case "digestTest":
header("Content-Type: text/plain");
print_r(prepare_headlines_digest($link, $_SESSION["uid"]));
$print_exec_time = false;
break; // digestTest
case "digestSend":
header("Content-Type: text/plain");
send_headlines_digests($link);
$print_exec_time = false;
break; // digestSend
case "getProfiles":
$login = db_escape_string($_REQUEST["login"]);
$password = db_escape_string($_REQUEST["password"]);
if (authenticate_user($link, $login, $password)) {
$result = db_query($link, "SELECT * FROM ttrss_settings_profiles
WHERE owner_uid = " . $_SESSION["uid"] . " ORDER BY title");
print "<select style='width: 100%' name='profile'>";
print "<option value='0'>" . __("Default profile") . "</option>";
while ($line = db_fetch_assoc($result)) {
$id = $line["id"];
$title = $line["title"];
print "<option value='$id'>$title</option>";
}
print "</select>";
$_SESSION = array();
}
break;
} // Select action according to $op value.
// We close the connection to database.
db_close($link);
?>
<?php if ($print_exec_time) { ?>
<!-- <?php echo sprintf("Backend execution time: %.4f seconds", getmicrotime() - $script_started) ?> -->
<?php } ?>