FreshRSS/app/Models/Feed.php

983 lines
30 KiB
PHP
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<?php
class FreshRSS_Feed extends Minz_Model {
/**
* Normal RSS or Atom feed
* @var int
*/
const KIND_RSS = 0;
/**
* Invalid RSS or Atom feed
* @var int
*/
const KIND_RSS_FORCED = 2;
/**
* Normal HTML with XPath scraping
* @var int
*/
const KIND_HTML_XPATH = 10;
/**
* Normal JSON with XPath scraping
* @var int
*/
const KIND_JSON_XPATH = 20;
const PRIORITY_MAIN_STREAM = 10;
const PRIORITY_NORMAL = 0;
const PRIORITY_ARCHIVED = -10;
const TTL_DEFAULT = 0;
const ARCHIVING_RETENTION_COUNT_LIMIT = 10000;
const ARCHIVING_RETENTION_PERIOD = 'P3M';
/** @var int */
private $id = 0;
/** @var string */
private $url = '';
/** @var int */
private $kind = 0;
/** @var int */
private $category = 1;
/** @var int */
private $nbEntries = -1;
/** @var int */
private $nbNotRead = -1;
/** @var int */
private $nbPendingNotRead = 0;
/** @var string */
private $name = '';
/** @var string */
private $website = '';
/** @var string */
private $description = '';
/** @var int */
private $lastUpdate = 0;
/** @var int */
private $priority = self::PRIORITY_MAIN_STREAM;
/** @var string */
private $pathEntries = '';
/** @var string */
private $httpAuth = '';
/** @var bool */
private $error = false;
/** @var int */
private $ttl = self::TTL_DEFAULT;
private $attributes = [];
/** @var bool */
private $mute = false;
/** @var string */
private $hash = '';
/** @var string */
private $lockPath = '';
/** @var string */
private $hubUrl = '';
/** @var string */
private $selfUrl = '';
/** @var array<FreshRSS_FilterAction> $filterActions */
private $filterActions = null;
public function __construct(string $url, bool $validate = true) {
if ($validate) {
$this->_url($url);
} else {
$this->url = $url;
}
}
/**
* @return FreshRSS_Feed
*/
public static function example() {
$f = new FreshRSS_Feed('http://example.net/', false);
$f->faviconPrepare();
return $f;
}
public function id(): int {
return $this->id;
}
public function hash(): string {
if ($this->hash == '') {
$salt = FreshRSS_Context::$system_conf->salt;
$this->hash = hash('crc32b', $salt . $this->url);
}
return $this->hash;
}
public function url(bool $includeCredentials = true): string {
return $includeCredentials ? $this->url : SimplePie_Misc::url_remove_credentials($this->url);
}
public function selfUrl(): string {
return $this->selfUrl;
}
public function kind(): int {
return $this->kind;
}
public function hubUrl(): string {
return $this->hubUrl;
}
public function category(): int {
return $this->category;
}
public function entries() {
Minz_Log::warning(__method__ . ' is deprecated since FreshRSS 1.16.1!');
$simplePie = $this->load(false, true);
return $simplePie == null ? [] : iterator_to_array($this->loadEntries($simplePie));
}
public function name($raw = false): string {
return $raw || $this->name != '' ? $this->name : preg_replace('%^https?://(www[.])?%i', '', $this->url);
}
public function website(): string {
return $this->website;
}
public function description(): string {
return $this->description;
}
public function lastUpdate(): int {
return $this->lastUpdate;
}
public function priority(): int {
return $this->priority;
}
public function pathEntries(): string {
return $this->pathEntries;
}
public function httpAuth($raw = true) {
if ($raw) {
return $this->httpAuth;
} else {
$pos_colon = strpos($this->httpAuth, ':');
$user = substr($this->httpAuth, 0, $pos_colon);
$pass = substr($this->httpAuth, $pos_colon + 1);
return array(
'username' => $user,
'password' => $pass
);
}
}
public function inError(): bool {
return $this->error;
}
public function ttl(): int {
return $this->ttl;
}
public function attributes($key = '') {
if ($key == '') {
return $this->attributes;
} else {
return isset($this->attributes[$key]) ? $this->attributes[$key] : null;
}
}
public function mute(): bool {
return $this->mute;
}
// public function ttlExpire() {
// $ttl = $this->ttl;
// if ($ttl == self::TTL_DEFAULT) { //Default
// $ttl = FreshRSS_Context::$user_conf->ttl_default;
// }
// if ($ttl == -1) { //Never
// $ttl = 64000000; //~2 years. Good enough for PubSubHubbub logic
// }
// return $this->lastUpdate + $ttl;
// }
public function nbEntries(): int {
if ($this->nbEntries < 0) {
$feedDAO = FreshRSS_Factory::createFeedDao();
$this->nbEntries = $feedDAO->countEntries($this->id());
}
return $this->nbEntries;
}
public function nbNotRead($includePending = false): int {
if ($this->nbNotRead < 0) {
$feedDAO = FreshRSS_Factory::createFeedDao();
$this->nbNotRead = $feedDAO->countNotRead($this->id());
}
return $this->nbNotRead + ($includePending ? $this->nbPendingNotRead : 0);
}
public function faviconPrepare() {
require_once(LIB_PATH . '/favicons.php');
$url = $this->website;
if ($url == '') {
$url = $this->url;
}
$txt = FAVICONS_DIR . $this->hash() . '.txt';
if (@file_get_contents($txt) !== $url) {
file_put_contents($txt, $url);
}
if (FreshRSS_Context::$isCli) {
$ico = FAVICONS_DIR . $this->hash() . '.ico';
$ico_mtime = @filemtime($ico);
$txt_mtime = @filemtime($txt);
if ($txt_mtime != false &&
($ico_mtime == false || $ico_mtime < $txt_mtime || ($ico_mtime < time() - (14 * 86400)))) {
// no ico file or we should download a new one.
$url = file_get_contents($txt);
download_favicon($url, $ico) || touch($ico);
}
}
}
public static function faviconDelete($hash) {
$path = DATA_PATH . '/favicons/' . $hash;
@unlink($path . '.ico');
@unlink($path . '.txt');
}
public function favicon(): string {
return Minz_Url::display('/f.php?' . $this->hash());
}
public function _id($value) {
$this->id = intval($value);
}
public function _url(string $value, bool $validate = true) {
$this->hash = '';
if ($validate) {
$value = checkUrl($value);
}
if ($value == '') {
throw new FreshRSS_BadUrl_Exception($value);
}
$this->url = $value;
}
public function _kind(int $value) {
$this->kind = $value;
}
public function _category($value) {
$value = intval($value);
$this->category = $value >= 0 ? $value : 0;
}
public function _name(string $value) {
$this->name = $value == '' ? '' : trim($value);
}
public function _website(string $value, bool $validate = true) {
if ($validate) {
$value = checkUrl($value);
}
if ($value == '') {
$value = '';
}
$this->website = $value;
}
public function _description(string $value) {
$this->description = $value == '' ? '' : $value;
}
public function _lastUpdate($value) {
$this->lastUpdate = intval($value);
}
public function _priority($value) {
$this->priority = intval($value);
}
public function _pathEntries(string $value) {
$this->pathEntries = $value;
}
public function _httpAuth(string $value) {
$this->httpAuth = $value;
}
public function _error($value) {
$this->error = (bool)$value;
}
public function _ttl($value) {
$value = intval($value);
$value = min($value, 100000000);
$this->ttl = abs($value);
$this->mute = $value < self::TTL_DEFAULT;
}
public function _attributes(string $key, $value) {
if ($key == '') {
if (is_string($value)) {
$value = json_decode($value, true);
}
if (is_array($value)) {
$this->attributes = $value;
}
} elseif ($value === null) {
unset($this->attributes[$key]);
} else {
$this->attributes[$key] = $value;
}
}
public function _nbNotRead($value) {
$this->nbNotRead = intval($value);
}
public function _nbEntries($value) {
$this->nbEntries = intval($value);
}
/**
* @return SimplePie|null
*/
public function load(bool $loadDetails = false, bool $noCache = false) {
if ($this->url != '') {
// @phpstan-ignore-next-line
if (CACHE_PATH === false) {
throw new Minz_FileNotExistException(
'CACHE_PATH',
Minz_Exception::ERROR
);
} else {
$url = htmlspecialchars_decode($this->url, ENT_QUOTES);
if ($this->httpAuth != '') {
$url = preg_replace('#((.+)://)(.+)#', '${1}' . $this->httpAuth . '@${3}', $url);
}
$simplePie = customSimplePie($this->attributes());
if (substr($url, -11) === '#force_feed') {
$simplePie->force_feed(true);
$url = substr($url, 0, -11);
}
$simplePie->set_feed_url($url);
if (!$loadDetails) { //Only activates auto-discovery when adding a new feed
$simplePie->set_autodiscovery_level(SIMPLEPIE_LOCATOR_NONE);
}
if ($this->attributes('clear_cache')) {
// Do not use `$simplePie->enable_cache(false);` as it would prevent caching in multiuser context
$this->clearCache();
}
Minz_ExtensionManager::callHook('simplepie_before_init', $simplePie, $this);
$mtime = $simplePie->init();
if ((!$mtime) || $simplePie->error()) {
$errorMessage = $simplePie->error();
throw new FreshRSS_Feed_Exception(
($errorMessage == '' ? 'Unknown error for feed' : $errorMessage) . ' [' . $this->url . ']',
$simplePie->status_code()
);
}
$links = $simplePie->get_links('self');
$this->selfUrl = empty($links[0]) ? '' : checkUrl($links[0]);
if ($this->selfUrl == false) {
$this->selfUrl = '';
}
$links = $simplePie->get_links('hub');
$this->hubUrl = empty($links[0]) ? '' : checkUrl($links[0]);
if ($this->hubUrl == false) {
$this->hubUrl = '';
}
if ($loadDetails) {
// si on a utilisé lauto-discover, notre url va avoir changé
$subscribe_url = $simplePie->subscribe_url(false);
//HTML to HTML-PRE //ENT_COMPAT except '&'
$title = strtr(html_only_entity_decode($simplePie->get_title()), array('<' => '&lt;', '>' => '&gt;', '"' => '&quot;'));
$this->_name($title == '' ? $this->url : $title);
$this->_website(html_only_entity_decode($simplePie->get_link()));
$this->_description(html_only_entity_decode($simplePie->get_description()));
} else {
//The case of HTTP 301 Moved Permanently
$subscribe_url = $simplePie->subscribe_url(true);
}
$clean_url = SimplePie_Misc::url_remove_credentials($subscribe_url);
if ($subscribe_url !== null && $subscribe_url !== $url) {
$this->_url($clean_url);
}
if (($mtime === true) || ($mtime > $this->lastUpdate) || $noCache) {
//Minz_Log::debug('FreshRSS no cache ' . $mtime . ' > ' . $this->lastUpdate . ' for ' . $clean_url);
return $simplePie;
}
//Minz_Log::debug('FreshRSS use cache for ' . $clean_url);
}
}
return null;
}
/**
* @return array<string>
*/
public function loadGuids(SimplePie $simplePie) {
$hasUniqueGuids = true;
$testGuids = [];
$guids = [];
$hasBadGuids = $this->attributes('hasBadGuids');
$items = $simplePie->get_items();
if (empty($items)) {
return $guids;
}
for ($i = count($items) - 1; $i >= 0; $i--) {
$item = $items[$i];
if ($item == null) {
continue;
}
$guid = safe_ascii($item->get_id(false, false));
$hasUniqueGuids &= empty($testGuids['_' . $guid]);
$testGuids['_' . $guid] = true;
$guids[] = $guid;
}
if ($hasBadGuids != !$hasUniqueGuids) {
$hasBadGuids = !$hasUniqueGuids;
if ($hasBadGuids) {
Minz_Log::warning('Feed has invalid GUIDs: ' . $this->url);
} else {
Minz_Log::warning('Feed has valid GUIDs again: ' . $this->url);
}
$feedDAO = FreshRSS_Factory::createFeedDao();
$feedDAO->updateFeedAttribute($this, 'hasBadGuids', $hasBadGuids);
}
return $guids;
}
public function loadEntries(SimplePie $simplePie) {
$hasBadGuids = $this->attributes('hasBadGuids');
$items = $simplePie->get_items();
if (empty($items)) {
return;
}
// We want chronological order and SimplePie uses reverse order.
for ($i = count($items) - 1; $i >= 0; $i--) {
$item = $items[$i];
if ($item == null) {
continue;
}
$title = html_only_entity_decode(strip_tags($item->get_title() ?? ''));
$authors = $item->get_authors();
$link = $item->get_permalink();
$date = @strtotime($item->get_date() ?? '');
//Tag processing (tag == category)
$categories = $item->get_categories();
$tags = array();
if (is_array($categories)) {
foreach ($categories as $category) {
$text = html_only_entity_decode($category->get_label());
//Some feeds use a single category with comma-separated tags
$labels = explode(',', $text);
if (is_array($labels)) {
foreach ($labels as $label) {
$tags[] = trim($label);
}
}
}
$tags = array_unique($tags);
}
$content = html_only_entity_decode($item->get_content());
if ($item->get_enclosures() != null) {
$elinks = array();
foreach ($item->get_enclosures() as $enclosure) {
$elink = $enclosure->get_link();
if ($elink != '' && empty($elinks[$elink])) {
$content .= '<div class="enclosure">';
if ($enclosure->get_title() != '') {
$content .= '<p class="enclosure-title">' . $enclosure->get_title() . '</p>';
}
$enclosureContent = '';
$elinks[$elink] = true;
$mime = strtolower($enclosure->get_type() ?? '');
$medium = strtolower($enclosure->get_medium() ?? '');
$height = $enclosure->get_height();
$width = $enclosure->get_width();
$length = $enclosure->get_length();
if ($medium === 'image' || strpos($mime, 'image') === 0 ||
($mime == '' && $length == null && ($width != 0 || $height != 0 || preg_match('/[.](avif|gif|jpe?g|png|svg|webp)$/i', $elink)))) {
$enclosureContent .= '<p class="enclosure-content"><img src="' . $elink . '" alt="" /></p>';
} elseif ($medium === 'audio' || strpos($mime, 'audio') === 0) {
$enclosureContent .= '<p class="enclosure-content"><audio preload="none" src="' . $elink
. ($length == null ? '' : '" data-length="' . intval($length))
. ($mime == '' ? '' : '" data-type="' . htmlspecialchars($mime, ENT_COMPAT, 'UTF-8'))
. '" controls="controls"></audio> <a download="" href="' . $elink . '">💾</a></p>';
} elseif ($medium === 'video' || strpos($mime, 'video') === 0) {
$enclosureContent .= '<p class="enclosure-content"><video preload="none" src="' . $elink
. ($length == null ? '' : '" data-length="' . intval($length))
. ($mime == '' ? '' : '" data-type="' . htmlspecialchars($mime, ENT_COMPAT, 'UTF-8'))
. '" controls="controls"></video> <a download="" href="' . $elink . '">💾</a></p>';
} else { //e.g. application, text, unknown
$enclosureContent .= '<p class="enclosure-content"><a download="" href="' . $elink
. ($mime == '' ? '' : '" data-type="' . htmlspecialchars($mime, ENT_COMPAT, 'UTF-8'))
. ($medium == '' ? '' : '" data-medium="' . htmlspecialchars($medium, ENT_COMPAT, 'UTF-8'))
. '">💾</a></p>';
}
$thumbnailContent = '';
if ($enclosure->get_thumbnails() != null) {
foreach ($enclosure->get_thumbnails() as $thumbnail) {
if (empty($elinks[$thumbnail])) {
$elinks[$thumbnail] = true;
$thumbnailContent .= '<p><img class="enclosure-thumbnail" src="' . $thumbnail . '" alt="" /></p>';
}
}
}
$content .= $thumbnailContent;
$content .= $enclosureContent;
if ($enclosure->get_description() != '') {
$content .= '<p class="enclosure-description">' . $enclosure->get_description() . '</p>';
}
$content .= "</div>\n";
}
}
}
$guid = safe_ascii($item->get_id(false, false));
unset($item);
$author_names = '';
if (is_array($authors)) {
foreach ($authors as $author) {
$author_names .= escapeToUnicodeAlternative(strip_tags($author->name == '' ? $author->email : $author->name), true) . '; ';
}
}
$author_names = substr($author_names, 0, -2);
$entry = new FreshRSS_Entry(
$this->id(),
$hasBadGuids ? '' : $guid,
$title == '' ? '' : $title,
$author_names,
$content == '' ? '' : $content,
$link == '' ? '' : $link,
$date ? $date : time()
);
$entry->_tags($tags);
$entry->_feed($this);
$entry->hash(); //Must be computed before loading full content
$entry->loadCompleteContent(); // Optionally load full content for truncated feeds
yield $entry;
}
}
/**
* @param array<string,mixed> $attributes
* @return SimplePie|null
*/
public function loadHtmlXpath(bool $loadDetails = false, bool $noCache = false, array $attributes = []) {
if ($this->url == '') {
return null;
}
$feedSourceUrl = htmlspecialchars_decode($this->url, ENT_QUOTES);
if ($this->httpAuth != '') {
$feedSourceUrl = preg_replace('#((.+)://)(.+)#', '${1}' . $this->httpAuth . '@${3}', $feedSourceUrl);
}
// Same naming conventions than https://rss-bridge.github.io/rss-bridge/Bridge_API/XPathAbstract.html
// https://rss-bridge.github.io/rss-bridge/Bridge_API/BridgeAbstract.html#collectdata
/** @var array<string,string> */
$xPathSettings = $this->attributes('xpath');
$xPathFeedTitle = $xPathSettings['feedTitle'] ?? '';
$xPathItem = $xPathSettings['item'] ?? '';
$xPathItemTitle = $xPathSettings['itemTitle'] ?? '';
$xPathItemContent = $xPathSettings['itemContent'] ?? '';
$xPathItemUri = $xPathSettings['itemUri'] ?? '';
$xPathItemAuthor = $xPathSettings['itemAuthor'] ?? '';
$xPathItemTimestamp = $xPathSettings['itemTimestamp'] ?? '';
$xPathItemThumbnail = $xPathSettings['itemThumbnail'] ?? '';
$xPathItemCategories = $xPathSettings['itemCategories'] ?? '';
if ($xPathItem == '') {
return null;
}
$html = getHtml($feedSourceUrl, $attributes);
if (strlen($html) <= 0) {
return null;
}
$view = new FreshRSS_View();
$view->_path('index/rss.phtml');
$view->internal_rendering = true;
$view->rss_url = $feedSourceUrl;
$view->entries = [];
try {
$doc = new DOMDocument();
$doc->recover = true;
$doc->strictErrorChecking = false;
$doc->loadHTML($html, LIBXML_NONET | LIBXML_NOERROR | LIBXML_NOWARNING);
$xpath = new DOMXPath($doc);
$view->rss_title = $xPathFeedTitle == '' ? $this->name() :
htmlspecialchars(@$xpath->evaluate('normalize-space(' . $xPathFeedTitle . ')'), ENT_COMPAT, 'UTF-8');
$view->rss_base = htmlspecialchars(trim($xpath->evaluate('normalize-space(//base/@href)')), ENT_COMPAT, 'UTF-8');
$nodes = $xpath->query($xPathItem);
if (empty($nodes)) {
return null;
}
foreach ($nodes as $node) {
$item = [];
$item['title'] = $xPathItemTitle == '' ? '' : @$xpath->evaluate('normalize-space(' . $xPathItemTitle . ')', $node);
$item['content'] = $xPathItemContent == '' ? '' : @$xpath->evaluate('normalize-space(' . $xPathItemContent . ')', $node);
$item['link'] = $xPathItemUri == '' ? '' : @$xpath->evaluate('normalize-space(' . $xPathItemUri . ')', $node);
$item['author'] = $xPathItemAuthor == '' ? '' : @$xpath->evaluate('normalize-space(' . $xPathItemAuthor . ')', $node);
$item['timestamp'] = $xPathItemTimestamp == '' ? '' : @$xpath->evaluate('normalize-space(' . $xPathItemTimestamp . ')', $node);
$item['thumbnail'] = $xPathItemThumbnail == '' ? '' : @$xpath->evaluate('normalize-space(' . $xPathItemThumbnail . ')', $node);
if ($xPathItemCategories != '') {
$itemCategories = @$xpath->query($xPathItemCategories, $node);
if ($itemCategories) {
foreach ($itemCategories as $itemCategory) {
$item['categories'][] = $itemCategory->textContent;
}
}
}
if ($item['title'] . $item['content'] . $item['link'] != '') {
$item['guid'] = 'urn:sha1:' . sha1($item['title'] . $item['content'] . $item['link']);
$item = Minz_Helper::htmlspecialchars_utf8($item);
$view->entries[] = FreshRSS_Entry::fromArray($item);
}
}
} catch (Exception $ex) {
Minz_Log::warning($ex->getMessage());
return null;
}
if (count($view->entries) < 1) {
return null;
}
$simplePie = customSimplePie();
$simplePie->set_raw_data($view->renderToString());
$simplePie->init();
return $simplePie;
}
/**
* To keep track of some new potentially unread articles since last commit+fetch from database
*/
public function incPendingUnread(int $n = 1) {
$this->nbPendingNotRead += $n;
}
public function keepMaxUnread() {
$keepMaxUnread = $this->attributes('keep_max_n_unread');
if ($keepMaxUnread == false) {
$keepMaxUnread = FreshRSS_Context::$user_conf->mark_when['max_n_unread'];
}
if ($keepMaxUnread > 0 && $this->nbNotRead(false) + $this->nbPendingNotRead > $keepMaxUnread) {
$feedDAO = FreshRSS_Factory::createFeedDao();
$feedDAO->keepMaxUnread($this->id(), max(0, $keepMaxUnread - $this->nbPendingNotRead));
}
}
/**
* Remember to call updateCachedValue($id_feed) or updateCachedValues() just after
*/
public function cleanOldEntries() {
$archiving = $this->attributes('archiving');
if ($archiving == null) {
$catDAO = FreshRSS_Factory::createCategoryDao();
$category = $catDAO->searchById($this->category());
$archiving = $category == null ? null : $category->attributes('archiving');
if ($archiving == null) {
$archiving = FreshRSS_Context::$user_conf->archiving;
}
}
if (is_array($archiving)) {
$entryDAO = FreshRSS_Factory::createEntryDao();
$nb = $entryDAO->cleanOldEntries($this->id(), $archiving);
if ($nb > 0) {
$needFeedCacheRefresh = true;
Minz_Log::debug($nb . ' entries cleaned in feed [' . $this->url(false) . '] with: ' . json_encode($archiving));
}
return $nb;
}
return false;
}
public static function cacheFilename(string $url, array $attributes, int $kind = FreshRSS_Feed::KIND_RSS): string {
$simplePie = customSimplePie($attributes);
$filename = $simplePie->get_cache_filename($url);
if ($kind == FreshRSS_Feed::KIND_HTML_XPATH) {
return CACHE_PATH . '/' . $filename . '.html';
} else {
return CACHE_PATH . '/' . $filename . '.spc';
}
}
public function clearCache(): bool {
return @unlink(FreshRSS_Feed::cacheFilename($this->url, $this->attributes(), $this->kind));
}
/** @return int|false */
public function cacheModifiedTime() {
return @filemtime(FreshRSS_Feed::cacheFilename($this->url, $this->attributes(), $this->kind));
}
public function lock(): bool {
$this->lockPath = TMP_PATH . '/' . $this->hash() . '.freshrss.lock';
if (file_exists($this->lockPath) && ((time() - @filemtime($this->lockPath)) > 3600)) {
@unlink($this->lockPath);
}
if (($handle = @fopen($this->lockPath, 'x')) === false) {
return false;
}
//register_shutdown_function('unlink', $this->lockPath);
@fclose($handle);
return true;
}
public function unlock(): bool {
return @unlink($this->lockPath);
}
/**
* @return array<FreshRSS_FilterAction>
*/
public function filterActions(): array {
if (empty($this->filterActions)) {
$this->filterActions = array();
$filters = $this->attributes('filters');
if (is_array($filters)) {
foreach ($filters as $filter) {
$filterAction = FreshRSS_FilterAction::fromJSON($filter);
if ($filterAction != null) {
$this->filterActions[] = $filterAction;
}
}
}
}
return $this->filterActions;
}
/**
* @param array<FreshRSS_FilterAction> $filterActions
*/
private function _filterActions($filterActions) {
$this->filterActions = $filterActions;
if (is_array($this->filterActions) && !empty($this->filterActions)) {
$this->_attributes('filters', array_map(function ($af) {
return $af == null ? null : $af->toJSON();
}, $this->filterActions));
} else {
$this->_attributes('filters', null);
}
}
/** @return array<FreshRSS_BooleanSearch> */
public function filtersAction(string $action): array {
$action = trim($action);
if ($action == '') {
return array();
}
$filters = array();
$filterActions = $this->filterActions();
for ($i = count($filterActions) - 1; $i >= 0; $i--) {
$filterAction = $filterActions[$i];
if ($filterAction != null && $filterAction->booleanSearch() != null &&
$filterAction->actions() != null && in_array($action, $filterAction->actions(), true)) {
$filters[] = $filterAction->booleanSearch();
}
}
return $filters;
}
/**
* @param array<string> $filters
*/
public function _filtersAction(string $action, $filters) {
$action = trim($action);
if ($action == '' || !is_array($filters)) {
return false;
}
$filters = array_unique(array_map('trim', $filters));
$filterActions = $this->filterActions();
//Check existing filters
for ($i = count($filterActions) - 1; $i >= 0; $i--) {
$filterAction = $filterActions[$i];
if ($filterAction == null || !is_array($filterAction->actions()) ||
$filterAction->booleanSearch() == null || trim($filterAction->booleanSearch()->getRawInput()) == '') {
array_splice($filterActions, $i, 1);
continue;
}
$actions = $filterAction->actions();
//Remove existing rules with same action
for ($j = count($actions) - 1; $j >= 0; $j--) {
if ($actions[$j] === $action) {
array_splice($actions, $j, 1);
}
}
//Update existing filter with new action
for ($k = count($filters) - 1; $k >= 0; $k --) {
$filter = $filters[$k];
if ($filter === $filterAction->booleanSearch()->getRawInput()) {
$actions[] = $action;
array_splice($filters, $k, 1);
}
}
//Save result
if (empty($actions)) {
array_splice($filterActions, $i, 1);
} else {
$filterAction->_actions($actions);
}
}
//Add new filters
for ($k = count($filters) - 1; $k >= 0; $k --) {
$filter = $filters[$k];
if ($filter != '') {
$filterAction = FreshRSS_FilterAction::fromJSON(array(
'search' => $filter,
'actions' => array($action),
));
if ($filterAction != null) {
$filterActions[] = $filterAction;
}
}
}
if (empty($filterActions)) {
$filterActions = null;
}
$this->_filterActions($filterActions);
}
//<WebSub>
public function pubSubHubbubEnabled(): bool {
$url = $this->selfUrl ? $this->selfUrl : $this->url;
$hubFilename = PSHB_PATH . '/feeds/' . sha1($url) . '/!hub.json';
if ($hubFile = @file_get_contents($hubFilename)) {
$hubJson = json_decode($hubFile, true);
if ($hubJson && empty($hubJson['error']) &&
(empty($hubJson['lease_end']) || $hubJson['lease_end'] > time())) {
return true;
}
}
return false;
}
public function pubSubHubbubError(bool $error = true): bool {
$url = $this->selfUrl ? $this->selfUrl : $this->url;
$hubFilename = PSHB_PATH . '/feeds/' . sha1($url) . '/!hub.json';
$hubFile = @file_get_contents($hubFilename);
$hubJson = $hubFile ? json_decode($hubFile, true) : array();
if (!isset($hubJson['error']) || $hubJson['error'] !== (bool)$error) {
$hubJson['error'] = (bool)$error;
file_put_contents($hubFilename, json_encode($hubJson));
Minz_Log::warning('Set error to ' . ($error ? 1 : 0) . ' for ' . $url, PSHB_LOG);
}
return false;
}
/**
* @return string|false
*/
public function pubSubHubbubPrepare() {
$key = '';
if (Minz_Request::serverIsPublic(FreshRSS_Context::$system_conf->base_url) &&
$this->hubUrl && $this->selfUrl && @is_dir(PSHB_PATH)) {
$path = PSHB_PATH . '/feeds/' . sha1($this->selfUrl);
$hubFilename = $path . '/!hub.json';
if ($hubFile = @file_get_contents($hubFilename)) {
$hubJson = json_decode($hubFile, true);
if (!$hubJson || empty($hubJson['key']) || !ctype_xdigit($hubJson['key'])) {
$text = 'Invalid JSON for WebSub: ' . $this->url;
Minz_Log::warning($text);
Minz_Log::warning($text, PSHB_LOG);
return false;
}
if ((!empty($hubJson['lease_end'])) && ($hubJson['lease_end'] < (time() + (3600 * 23)))) { //TODO: Make a better policy
$text = 'WebSub lease ends at '
. date('c', empty($hubJson['lease_end']) ? time() : $hubJson['lease_end'])
. ' and needs renewal: ' . $this->url;
Minz_Log::warning($text);
Minz_Log::warning($text, PSHB_LOG);
$key = $hubJson['key']; //To renew our lease
} elseif (((!empty($hubJson['error'])) || empty($hubJson['lease_end'])) &&
(empty($hubJson['lease_start']) || $hubJson['lease_start'] < time() - (3600 * 23))) { //Do not renew too often
$key = $hubJson['key']; //To renew our lease
}
} else {
@mkdir($path, 0777, true);
$key = sha1($path . FreshRSS_Context::$system_conf->salt);
$hubJson = array(
'hub' => $this->hubUrl,
'key' => $key,
);
file_put_contents($hubFilename, json_encode($hubJson));
@mkdir(PSHB_PATH . '/keys/');
file_put_contents(PSHB_PATH . '/keys/' . $key . '.txt', $this->selfUrl);
$text = 'WebSub prepared for ' . $this->url;
Minz_Log::debug($text);
Minz_Log::debug($text, PSHB_LOG);
}
$currentUser = Minz_Session::param('currentUser');
if (FreshRSS_user_Controller::checkUsername($currentUser) && !file_exists($path . '/' . $currentUser . '.txt')) {
touch($path . '/' . $currentUser . '.txt');
}
}
return $key;
}
//Parameter true to subscribe, false to unsubscribe.
public function pubSubHubbubSubscribe(bool $state): bool {
if ($state) {
$url = $this->selfUrl ? $this->selfUrl : $this->url;
} else {
$url = $this->url; //Always use current URL during unsubscribe
}
if ($url && (Minz_Request::serverIsPublic(FreshRSS_Context::$system_conf->base_url) || !$state)) {
$hubFilename = PSHB_PATH . '/feeds/' . sha1($url) . '/!hub.json';
$hubFile = @file_get_contents($hubFilename);
if ($hubFile === false) {
Minz_Log::warning('JSON not found for WebSub: ' . $this->url);
return false;
}
$hubJson = json_decode($hubFile, true);
if (!$hubJson || empty($hubJson['key']) || !ctype_xdigit($hubJson['key']) || empty($hubJson['hub'])) {
Minz_Log::warning('Invalid JSON for WebSub: ' . $this->url);
return false;
}
$callbackUrl = checkUrl(Minz_Request::getBaseUrl() . '/api/pshb.php?k=' . $hubJson['key']);
if ($callbackUrl == '') {
Minz_Log::warning('Invalid callback for WebSub: ' . $this->url);
return false;
}
if (!$state) { //unsubscribe
$hubJson['lease_end'] = time() - 60;
file_put_contents($hubFilename, json_encode($hubJson));
}
$ch = curl_init();
curl_setopt_array($ch, [
CURLOPT_URL => $hubJson['hub'],
CURLOPT_RETURNTRANSFER => true,
CURLOPT_POSTFIELDS => http_build_query(array(
'hub.verify' => 'sync',
'hub.mode' => $state ? 'subscribe' : 'unsubscribe',
'hub.topic' => $url,
'hub.callback' => $callbackUrl,
)),
CURLOPT_USERAGENT => FRESHRSS_USERAGENT,
CURLOPT_MAXREDIRS => 10,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_ENCODING => '', //Enable all encodings
]);
$response = curl_exec($ch);
$info = curl_getinfo($ch);
Minz_Log::warning('WebSub ' . ($state ? 'subscribe' : 'unsubscribe') . ' to ' . $url .
' via hub ' . $hubJson['hub'] .
' with callback ' . $callbackUrl . ': ' . $info['http_code'] . ' ' . $response, PSHB_LOG);
if (substr('' . $info['http_code'], 0, 1) == '2') {
return true;
} else {
$hubJson['lease_start'] = time(); //Prevent trying again too soon
$hubJson['error'] = true;
file_put_contents($hubFilename, json_encode($hubJson));
return false;
}
}
return false;
}
//</WebSub>
}