wallabag/inc/poche/Poche.class.php

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<?php
/**
* poche, a read it later open source system
*
* @category poche
* @author Nicolas Lœuillet <support@inthepoche.com>
* @copyright 2013
* @license http://www.wtfpl.net/ see COPYING file
*/
class Poche
{
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public static $canRenderTemplates = true;
public static $configFileAvailable = true;
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public $user;
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public $store;
public $tpl;
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public $messages;
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public $pagination;
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private $currentTheme = '';
private $currentLanguage = '';
private $notInstalledMessage = array();
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# @todo make this dynamic (actually install themes and save them in the database including author information et cetera)
private $installedThemes = array(
'default' => array('requires' => array()),
'dark' => array('requires' => array('default')),
'dmagenta' => array('requires' => array('default')),
'solarized' => array('requires' => array('default')),
'solarized-dark' => array('requires' => array('default'))
);
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public function __construct()
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{
if ($this->configFileIsAvailable()) {
$this->init();
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}
if ($this->themeIsInstalled()) {
$this->initTpl();
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}
if ($this->systemIsInstalled()) {
$this->store = new Database();
$this->messages = new Messages();
# installation
if (! $this->store->isInstalled()) {
$this->install();
}
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}
}
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private function init()
{
Tools::initPhp();
Session::$sessionName = 'poche';
Session::init();
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if (isset($_SESSION['poche_user']) && $_SESSION['poche_user'] != array()) {
$this->user = $_SESSION['poche_user'];
} else {
# fake user, just for install & login screens
$this->user = new User();
$this->user->setConfig($this->getDefaultConfig());
}
# l10n
$language = $this->user->getConfigValue('language');
putenv('LC_ALL=' . $language);
setlocale(LC_ALL, $language);
bindtextdomain($language, LOCALE);
textdomain($language);
# Pagination
$this->pagination = new Paginator($this->user->getConfigValue('pager'), 'p');
# Set up theme
$themeDirectory = $this->user->getConfigValue('theme');
if ($themeDirectory === false) {
$themeDirectory = DEFAULT_THEME;
}
$this->currentTheme = $themeDirectory;
# Set up language
$languageDirectory = $this->user->getConfigValue('language');
if ($languageDirectory === false) {
$languageDirectory = DEFAULT_THEME;
}
$this->currentLanguage = $languageDirectory;
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}
public function configFileIsAvailable() {
if (! self::$configFileAvailable) {
$this->notInstalledMessage[] = 'You have to rename inc/poche/config.inc.php.new to inc/poche/config.inc.php.';
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return false;
}
return true;
}
public function themeIsInstalled() {
$passTheme = TRUE;
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# Twig is an absolute requirement for Poche to function. Abort immediately if the Composer installer hasn't been run yet
if (! self::$canRenderTemplates) {
$this->notInstalledMessage[] = 'Twig does not seem to be installed. Please initialize the Composer installation to automatically fetch dependencies. Have a look at <a href="http://doc.inthepoche.com/doku.php?id=users:begin:install">the documentation.</a>';
$passTheme = FALSE;
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}
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if (! is_writable(CACHE)) {
$this->notInstalledMessage[] = 'You don\'t have write access on cache directory.';
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self::$canRenderTemplates = false;
$passTheme = FALSE;
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}
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# Check if the selected theme and its requirements are present
if ($this->getTheme() != '' && ! is_dir(THEME . '/' . $this->getTheme())) {
$this->notInstalledMessage[] = 'The currently selected theme (' . $this->getTheme() . ') does not seem to be properly installed (Missing directory: ' . THEME . '/' . $this->getTheme() . ')';
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self::$canRenderTemplates = false;
$passTheme = FALSE;
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}
foreach ($this->installedThemes[$this->getTheme()]['requires'] as $requiredTheme) {
if (! is_dir(THEME . '/' . $requiredTheme)) {
$this->notInstalledMessage[] = 'The required "' . $requiredTheme . '" theme is missing for the current theme (' . $this->getTheme() . ')';
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self::$canRenderTemplates = false;
$passTheme = FALSE;
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}
}
if (!$passTheme) {
return FALSE;
}
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return true;
}
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/**
* all checks before installation.
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* @todo move HTML to template
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* @return boolean
*/
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public function systemIsInstalled()
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{
$msg = TRUE;
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$configSalt = defined('SALT') ? constant('SALT') : '';
if (empty($configSalt)) {
$this->notInstalledMessage[] = 'You have not yet filled in the SALT value in the config.inc.php file.';
$msg = FALSE;
}
if (STORAGE == 'sqlite' && ! file_exists(STORAGE_SQLITE)) {
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Tools::logm('sqlite file doesn\'t exist');
$this->notInstalledMessage[] = 'sqlite file doesn\'t exist, you can find it in install folder. Copy it in /db folder.';
$msg = FALSE;
}
if (is_dir(ROOT . '/install') && ! DEBUG_POCHE) {
$this->notInstalledMessage[] = 'you have to delete the /install folder before using poche.';
$msg = FALSE;
}
if (STORAGE == 'sqlite' && ! is_writable(STORAGE_SQLITE)) {
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Tools::logm('you don\'t have write access on sqlite file');
$this->notInstalledMessage[] = 'You don\'t have write access on sqlite file.';
$msg = FALSE;
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}
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if (! $msg) {
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return false;
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}
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return true;
}
public function getNotInstalledMessage() {
return $this->notInstalledMessage;
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}
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private function initTpl()
{
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$loaderChain = new Twig_Loader_Chain();
# add the current theme as first to the loader chain so Twig will look there first for overridden template files
try {
$loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . $this->getTheme()));
} catch (Twig_Error_Loader $e) {
# @todo isInstalled() should catch this, inject Twig later
die('The currently selected theme (' . $this->getTheme() . ') does not seem to be properly installed (' . THEME . '/' . $this->getTheme() .' is missing)');
}
# add all required themes to the loader chain
foreach ($this->installedThemes[$this->getTheme()]['requires'] as $requiredTheme) {
try {
$loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . DEFAULT_THEME));
} catch (Twig_Error_Loader $e) {
# @todo isInstalled() should catch this, inject Twig later
die('The required "' . $requiredTheme . '" theme is missing for the current theme (' . $this->getTheme() . ')');
}
}
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if (DEBUG_POCHE) {
$twig_params = array();
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} else {
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$twig_params = array('cache' => CACHE);
}
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$this->tpl = new Twig_Environment($loaderChain, $twig_params);
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$this->tpl->addExtension(new Twig_Extensions_Extension_I18n());
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# filter to display domain name of an url
$filter = new Twig_SimpleFilter('getDomain', 'Tools::getDomain');
$this->tpl->addFilter($filter);
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# filter for reading time
$filter = new Twig_SimpleFilter('getReadingTime', 'Tools::getReadingTime');
$this->tpl->addFilter($filter);
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# filter for simple filenames in config view
$filter = new Twig_SimpleFilter('getPrettyFilename', function($string) { return str_replace(ROOT, '', $string); });
$this->tpl->addFilter($filter);
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}
private function install()
{
Tools::logm('poche still not installed');
echo $this->tpl->render('install.twig', array(
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'token' => Session::getToken(),
'theme' => $this->getTheme(),
'poche_url' => Tools::getPocheUrl()
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));
if (isset($_GET['install'])) {
if (($_POST['password'] == $_POST['password_repeat'])
&& $_POST['password'] != "" && $_POST['login'] != "") {
# let's rock, install poche baby !
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if ($this->store->install($_POST['login'], Tools::encodeString($_POST['password'] . $_POST['login'])))
{
Session::logout();
Tools::logm('poche is now installed');
Tools::redirect();
}
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}
else {
Tools::logm('error during installation');
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Tools::redirect();
}
}
exit();
}
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public function getTheme() {
return $this->currentTheme;
}
public function getLanguage() {
return $this->currentLanguage;
}
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public function getInstalledThemes() {
$handle = opendir(THEME);
$themes = array();
while (($theme = readdir($handle)) !== false) {
# Themes are stored in a directory, so all directory names are themes
# @todo move theme installation data to database
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if (! is_dir(THEME . '/' . $theme) || in_array($theme, array('..', '.'))) {
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continue;
}
$current = false;
if ($theme === $this->getTheme()) {
$current = true;
}
$themes[] = array('name' => $theme, 'current' => $current);
}
sort($themes);
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return $themes;
}
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public function getInstalledLanguages() {
$handle = opendir(LOCALE);
$languages = array();
while (($language = readdir($handle)) !== false) {
# Languages are stored in a directory, so all directory names are languages
# @todo move language installation data to database
if (! is_dir(LOCALE . '/' . $language) || in_array($language, array('..', '.'))) {
continue;
}
$current = false;
if ($language === $this->getLanguage()) {
$current = true;
}
$languages[] = array('name' => $language, 'current' => $current);
}
return $languages;
}
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public function getDefaultConfig()
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{
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return array(
'pager' => PAGINATION,
'language' => LANG,
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'theme' => DEFAULT_THEME
);
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}
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/**
* Call action (mark as fav, archive, delete, etc.)
*/
public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE)
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{
switch ($action)
{
case 'add':
$content = $url->extract();
if ($this->store->add($url->getUrl(), $content['title'], $content['body'], $this->user->getId())) {
Tools::logm('add link ' . $url->getUrl());
$sequence = '';
if (STORAGE == 'postgres') {
$sequence = 'entries_id_seq';
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}
$last_id = $this->store->getLastId($sequence);
if (DOWNLOAD_PICTURES) {
$content = filtre_picture($content['body'], $url->getUrl(), $last_id);
Tools::logm('updating content article');
$this->store->updateContent($last_id, $content, $this->user->getId());
}
if (!$import) {
$this->messages->add('s', _('the link has been added successfully'));
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}
}
else {
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if (!$import) {
$this->messages->add('e', _('error during insertion : the link wasn\'t added'));
Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
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}
}
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if (!$import) {
if ($autoclose == TRUE) {
Tools::redirect('?view=home');
} else {
Tools::redirect('?view=home&closewin=true');
}
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}
break;
case 'delete':
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$msg = 'delete link #' . $id;
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if ($this->store->deleteById($id, $this->user->getId())) {
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if (DOWNLOAD_PICTURES) {
remove_directory(ABS_PATH . $id);
}
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$this->messages->add('s', _('the link has been deleted successfully'));
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}
else {
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$this->messages->add('e', _('the link wasn\'t deleted'));
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$msg = 'error : can\'t delete link #' . $id;
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}
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Tools::logm($msg);
Tools::redirect('?');
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break;
case 'toggle_fav' :
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$this->store->favoriteById($id, $this->user->getId());
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Tools::logm('mark as favorite link #' . $id);
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if (!$import) {
Tools::redirect();
}
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break;
case 'toggle_archive' :
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$this->store->archiveById($id, $this->user->getId());
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Tools::logm('archive link #' . $id);
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if (!$import) {
Tools::redirect();
}
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break;
default:
break;
}
}
function displayView($view, $id = 0)
{
$tpl_vars = array();
switch ($view)
{
case 'config':
$dev = $this->getPocheVersion('dev');
$prod = $this->getPocheVersion('prod');
$compare_dev = version_compare(POCHE, $dev);
$compare_prod = version_compare(POCHE, $prod);
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$themes = $this->getInstalledThemes();
$languages = $this->getInstalledLanguages();
$token = $this->user->getConfigValue('token');
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$http_auth = (isset($_SERVER['PHP_AUTH_USER']))?true:false;
$tpl_vars = array(
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'themes' => $themes,
'languages' => $languages,
'dev' => $dev,
'prod' => $prod,
'compare_dev' => $compare_dev,
'compare_prod' => $compare_prod,
'token' => $token,
'user_id' => $this->user->getId(),
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'http_auth' => $http_auth,
);
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Tools::logm('config view');
break;
case 'view':
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$entry = $this->store->retrieveOneById($id, $this->user->getId());
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if ($entry != NULL) {
Tools::logm('view link #' . $id);
$content = $entry['content'];
if (function_exists('tidy_parse_string')) {
$tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
$tidy->cleanRepair();
$content = $tidy->value;
}
# flattr checking
$flattr = new FlattrItem();
$flattr->checkItem($entry['url'],$entry['id']);
$tpl_vars = array(
'entry' => $entry,
'content' => $content,
'flattr' => $flattr
);
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}
else {
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Tools::logm('error in view call : entry is null');
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}
break;
default: # home, favorites and archive views
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$entries = $this->store->getEntriesByView($view, $this->user->getId());
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$tpl_vars = array(
'entries' => '',
'page_links' => '',
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'nb_results' => '',
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);
if (count($entries) > 0) {
$this->pagination->set_total(count($entries));
$page_links = $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . '&');
$datas = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit());
$tpl_vars['entries'] = $datas;
$tpl_vars['page_links'] = $page_links;
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$tpl_vars['nb_results'] = count($entries);
}
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Tools::logm('display ' . $view . ' view');
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break;
}
return $tpl_vars;
}
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/**
* update the password of the current user.
* if MODE_DEMO is TRUE, the password can't be updated.
* @todo add the return value
* @todo set the new password in function header like this updatePassword($newPassword)
* @return boolean
*/
public function updatePassword()
{
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if (MODE_DEMO) {
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$this->messages->add('i', _('in demo mode, you can\'t update your password'));
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Tools::logm('in demo mode, you can\'t do this');
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Tools::redirect('?view=config');
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}
else {
if (isset($_POST['password']) && isset($_POST['password_repeat'])) {
if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") {
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$this->messages->add('s', _('your password has been updated'));
$this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername()));
Session::logout();
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Tools::logm('password updated');
Tools::redirect();
}
else {
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$this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
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Tools::redirect('?view=config');
}
}
}
}
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public function updateTheme()
{
# no data
if (empty($_POST['theme'])) {
}
# we are not going to change it to the current theme...
if ($_POST['theme'] == $this->getTheme()) {
$this->messages->add('w', _('still using the "' . $this->getTheme() . '" theme!'));
Tools::redirect('?view=config');
}
$themes = $this->getInstalledThemes();
$actualTheme = false;
foreach ($themes as $theme) {
if ($theme['name'] == $_POST['theme']) {
$actualTheme = true;
break;
}
}
if (! $actualTheme) {
$this->messages->add('e', _('that theme does not seem to be installed'));
Tools::redirect('?view=config');
}
$this->store->updateUserConfig($this->user->getId(), 'theme', $_POST['theme']);
$this->messages->add('s', _('you have changed your theme preferences'));
$currentConfig = $_SESSION['poche_user']->config;
$currentConfig['theme'] = $_POST['theme'];
$_SESSION['poche_user']->setConfig($currentConfig);
Tools::redirect('?view=config');
}
public function updateLanguage()
{
# no data
if (empty($_POST['language'])) {
}
# we are not going to change it to the current language...
if ($_POST['language'] == $this->getLanguage()) {
$this->messages->add('w', _('still using the "' . $this->getLanguage() . '" language!'));
Tools::redirect('?view=config');
}
$languages = $this->getInstalledLanguages();
$actualLanguage = false;
foreach ($languages as $language) {
if ($language['name'] == $_POST['language']) {
$actualLanguage = true;
break;
}
}
if (! $actualLanguage) {
$this->messages->add('e', _('that language does not seem to be installed'));
Tools::redirect('?view=config');
}
$this->store->updateUserConfig($this->user->getId(), 'language', $_POST['language']);
$this->messages->add('s', _('you have changed your language preferences'));
$currentConfig = $_SESSION['poche_user']->config;
$currentConfig['language'] = $_POST['language'];
$_SESSION['poche_user']->setConfig($currentConfig);
Tools::redirect('?view=config');
}
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/**
* get credentials from differents sources
* it redirects the user to the $referer link
* @return array
*/
private function credentials() {
if(isset($_SERVER['PHP_AUTH_USER'])) {
return array($_SERVER['PHP_AUTH_USER'],'php_auth');
}
if(!empty($_POST['login']) && !empty($_POST['password'])) {
return array($_POST['login'],$_POST['password']);
}
return array(false,false);
}
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/**
* checks if login & password are correct and save the user in session.
* it redirects the user to the $referer link
* @param string $referer the url to redirect after login
* @todo add the return value
* @return boolean
*/
public function login($referer)
{
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list($login,$password)=$this->credentials();
if($login === false || $password === false) {
$this->messages->add('e', _('login failed: you have to fill all fields'));
Tools::logm('login failed');
Tools::redirect();
}
if (!empty($login) && !empty($password)) {
$user = $this->store->login($login, Tools::encodeString($password . $login));
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if ($user != array()) {
# Save login into Session
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Session::login($user['username'], $user['password'], $login, Tools::encodeString($password . $login), array('poche_user' => new User($user)));
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$this->messages->add('s', _('welcome to your poche'));
Tools::logm('login successful');
Tools::redirect($referer);
}
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$this->messages->add('e', _('login failed: bad login or password'));
Tools::logm('login failed');
Tools::redirect();
}
}
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/**
* log out the poche user. It cleans the session.
* @todo add the return value
* @return boolean
*/
public function logout()
{
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$this->user = array();
Session::logout();
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$this->messages->add('s', _('see you soon!'));
Tools::logm('logout');
Tools::redirect();
}
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/**
* import from Instapaper. poche needs a ./instapaper-export.html file
* @todo add the return value
* @param string $targetFile the file used for importing
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* @return boolean
*/
private function importFromInstapaper($targetFile)
{
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# TODO gestion des articles favs
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$html = new simple_html_dom();
$html->load_file($targetFile);
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Tools::logm('starting import from instapaper');
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$read = 0;
$errors = array();
foreach($html->find('ol') as $ul)
{
foreach($ul->find('li') as $li)
{
$a = $li->find('a');
$url = new Url(base64_encode($a[0]->href));
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$this->action('add', $url, 0, TRUE);
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if ($read == '1') {
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$sequence = '';
if (STORAGE == 'postgres') {
$sequence = 'entries_id_seq';
}
$last_id = $this->store->getLastId($sequence);
$this->action('toggle_archive', $url, $last_id, TRUE);
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}
}
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# the second <ol> is for read links
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$read = 1;
}
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$this->messages->add('s', _('import from instapaper completed'));
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Tools::logm('import from instapaper completed');
Tools::redirect();
}
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/**
* import from Pocket. poche needs a ./ril_export.html file
* @todo add the return value
* @param string $targetFile the file used for importing
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* @return boolean
*/
private function importFromPocket($targetFile)
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{
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# TODO gestion des articles favs
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$html = new simple_html_dom();
$html->load_file($targetFile);
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Tools::logm('starting import from pocket');
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$read = 0;
$errors = array();
foreach($html->find('ul') as $ul)
{
foreach($ul->find('li') as $li)
{
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$a = $li->find('a');
$url = new Url(base64_encode($a[0]->href));
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$this->action('add', $url, 0, TRUE);
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if ($read == '1') {
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$sequence = '';
if (STORAGE == 'postgres') {
$sequence = 'entries_id_seq';
}
$last_id = $this->store->getLastId($sequence);
$this->action('toggle_archive', $url, $last_id, TRUE);
}
}
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# the second <ul> is for read links
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$read = 1;
}
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$this->messages->add('s', _('import from pocket completed'));
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Tools::logm('import from pocket completed');
Tools::redirect();
}
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/**
* import from Readability. poche needs a ./readability file
* @todo add the return value
* @param string $targetFile the file used for importing
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* @return boolean
*/
private function importFromReadability($targetFile)
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{
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# TODO gestion des articles lus / favs
$str_data = file_get_contents($targetFile);
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$data = json_decode($str_data,true);
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Tools::logm('starting import from Readability');
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$count = 0;
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foreach ($data as $key => $value) {
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$url = NULL;
$favorite = FALSE;
$archive = FALSE;
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foreach ($value as $attr => $attr_value) {
if ($attr == 'article__url') {
$url = new Url(base64_encode($attr_value));
}
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$sequence = '';
if (STORAGE == 'postgres') {
$sequence = 'entries_id_seq';
}
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if ($attr_value == 'true') {
if ($attr == 'favorite') {
$favorite = TRUE;
}
if ($attr == 'archive') {
$archive = TRUE;
}
}
}
# we can add the url
if (!is_null($url) && $url->isCorrect()) {
$this->action('add', $url, 0, TRUE);
$count++;
if ($favorite) {
$last_id = $this->store->getLastId($sequence);
$this->action('toggle_fav', $url, $last_id, TRUE);
}
if ($archive) {
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$last_id = $this->store->getLastId($sequence);
$this->action('toggle_archive', $url, $last_id, TRUE);
}
}
}
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$this->messages->add('s', _('import from Readability completed. ' . $count . ' new links.'));
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Tools::logm('import from Readability completed');
Tools::redirect();
}
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/**
* import datas into your poche
* @param string $from name of the service to import : pocket, instapaper or readability
* @todo add the return value
* @return boolean
*/
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public function import($from)
{
$providers = array(
'pocket' => 'importFromPocket',
'readability' => 'importFromReadability',
'instapaper' => 'importFromInstapaper'
);
if (! isset($providers[$from])) {
$this->messages->add('e', _('Unknown import provider.'));
Tools::redirect();
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}
$targetDefinition = 'IMPORT_' . strtoupper($from) . '_FILE';
$targetFile = constant($targetDefinition);
if (! defined($targetDefinition)) {
$this->messages->add('e', _('Incomplete inc/poche/define.inc.php file, please define "' . $targetDefinition . '".'));
Tools::redirect();
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}
if (! file_exists($targetFile)) {
$this->messages->add('e', _('Could not find required "' . $targetFile . '" import file.'));
Tools::redirect();
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}
$this->$providers[$from]($targetFile);
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}
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/**
* export poche entries in json
* @return json all poche entries
*/
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public function export()
{
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$entries = $this->store->retrieveAll($this->user->getId());
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echo $this->tpl->render('export.twig', array(
'export' => Tools::renderJson($entries),
));
Tools::logm('export view');
}
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/**
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* Checks online the latest version of poche and cache it
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* @param string $which 'prod' or 'dev'
* @return string latest $which version
*/
private function getPocheVersion($which = 'prod')
{
$cache_file = CACHE . '/' . $which;
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# checks if the cached version file exists
if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
$version = file_get_contents($cache_file);
} else {
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$version = file_get_contents('http://static.inthepoche.com/versions/' . $which);
file_put_contents($cache_file, $version, LOCK_EX);
}
return $version;
}
public function generateToken()
{
if (ini_get('open_basedir') === '') {
$token = substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15);
}
else {
$token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
}
$this->store->updateUserConfig($this->user->getId(), 'token', $token);
$currentConfig = $_SESSION['poche_user']->config;
$currentConfig['token'] = $token;
$_SESSION['poche_user']->setConfig($currentConfig);
}
public function generateFeeds($token, $user_id, $type = 'home')
{
$allowed_types = array('home', 'fav');
$config = $this->store->getConfigUser($user_id);
if (!in_array($type, $allowed_types) ||
$token != $config['token']) {
die(_('Uh, there is a problem while generating feeds.'));
}
// Check the token
$feed = new FeedWriter(ATOM);
$feed->setTitle('poche - ' . $type . ' feed');
$feed->setLink(Tools::getPocheUrl());
$feed->setChannelElement('updated', date(DATE_ATOM , time()));
$feed->setChannelElement('author', 'poche');
$entries = $this->store->getEntriesByView($type, $user_id);
if (count($entries) > 0) {
foreach ($entries as $entry) {
$newItem = $feed->createNewItem();
$newItem->setTitle(htmlentities($entry['title']));
$newItem->setLink(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
$newItem->setDate(time());
$newItem->setDescription($entry['content']);
$feed->addItem($newItem);
}
}
$feed->genarateFeed();
exit;
}
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}