private function _getScheme()
{
if ($schemeHeader = $this->_getSchemeHeader()) {
return $schemeHeader;
} else {
$requestUrl = new Url($this->_server['REQUEST_URI']);
return $requestUrl->hasScheme() ? $requestUrl->getScheme() : 'http';
}
}
/**
*
* @return boolean
*/
private function areSchemesEquivalent()
{
if ($this->sourceUrl->getScheme() === $this->comparatorUrl->getScheme()) {
return true;
}
foreach ($this->equivalentSchemes as $equivalentSchemeSet) {
if (in_array($this->sourceUrl->getScheme(), $equivalentSchemeSet) && in_array($this->comparatorUrl->getScheme(), $equivalentSchemeSet)) {
return true;
}
}
return false;
}
function testUrl()
{
$url = new Url(self::TEST_URL);
$this->assertEquals($url->getFull(), self::TEST_URL);
$this->assertEquals($url->getScheme(), 'https');
$this->assertEquals($url->getHost(), 'www.google.com');
$this->assertEquals($url->getPort(), '80');
$this->assertEquals($url->getPath(), '/some_path');
// The HTML entities remain intact
$this->assertEquals($url->getQuery(), 'some=query&something=%20weird');
// The HTML entities are resolved
$this->assertEquals($url->getParam('some'), 'query');
$this->assertEquals($url->getParam('something'), ' weird');
$this->assertEquals($url->getParams(), ['some' => 'query', 'something' => ' weird']);
$this->assertEquals($url->getFragment(), 'some_fragment');
$this->assertEquals($url->getUser(), 'user');
$this->assertEquals($url->getPass(), 'pass');
}
/**
* Generate a base string for a RSA-SHA1 signature
* based on the given a url, method, and any parameters.
*
* @param Url $url
* @param string $method
* @param array $parameters
*
* @return string
*/
protected function baseString(Url $url, $method = 'POST', array $parameters = [])
{
$baseString = rawurlencode($method) . '&';
$schemeHostPath = $url->getScheme() . '://' . $url->getHost();
if ($url->getPort() != '') {
$schemeHostPath .= ':' . $url->getPort();
}
if ($url->getPath() != '') {
$schemeHostPath .= $url->getPath();
}
$baseString .= rawurlencode($schemeHostPath) . '&';
$data = [];
parse_str($url->getQuery(), $query);
foreach (array_merge($query, $parameters) as $key => $value) {
$data[rawurlencode($key)] = rawurlencode($value);
}
ksort($data);
array_walk($data, function (&$value, $key) {
$value = $key . '=' . $value;
});
$baseString .= rawurlencode(implode('&', $data));
return $baseString;
}
/**
* Test default http scheme.
*/
public function testDefaultScheme()
{
$url = new Url(self::$baseUrl);
$this->assertEquals('http', $url->getScheme());
$url = new Url('domain.tld');
$this->assertEquals('http', $url->getScheme());
$url = new Url('ssh://domain.tld');
$this->assertEquals('ssh', $url->getScheme());
$url = new Url('ftp://domain.tld');
$this->assertEquals('ftp', $url->getScheme());
$url = new Url('git://domain.tld/push?pull=clone#checkout');
$this->assertEquals('git', $url->getScheme());
}
/**
* Checks this url is base uri for the given url.
*
* @param Url $targetUri The url to inspect the base part.
*
* @return boolean
*/
public function isBaseOf(Url $targetUri)
{
if ($this->_parts['scheme'] !== $targetUri->getScheme() || $this->_parts['host'] !== $targetUri->getHost() || $this->getPort() !== $targetUri->getPort()) {
return false;
}
$srcSegmentCount = count($this->_segments);
$targetSegments = $targetUri->getSegments();
$targetSegmentCount = count($targetSegments);
if ($srcSegmentCount > $targetSegmentCount) {
return false;
}
for ($i = 0; $i < $srcSegmentCount; $i++) {
if ($this->_segments[$i] !== $targetSegments[$i]) {
return false;
}
}
return true;
}
/**
* get a link from the current URL to another one
* @param UrlInterface|string $url the URL to link to
* @param boolean $forceAbsolute should an absolute path be used, defaults to `true`)
* @return string the link
*/
public function linkTo($url, $forceAbsolute = true)
{
if (is_string($url)) {
$url = new Url($url);
}
$str = (string) $url;
if ($this->getScheme() !== $url->getScheme()) {
return $str;
}
$str = preg_replace('(^[^/]+//)', '', $str);
if ($this->getHost() !== $url->getHost() || $this->getPort() !== $url->getPort()) {
return '//' . $str;
}
$str = preg_replace('(^[^/]+)', '', $str);
if ($this->getPath() !== $url->getPath()) {
if ($forceAbsolute) {
return $str;
}
$cnt = 0;
$tseg = $this->getSegments();
$useg = $url->getSegments();
foreach ($tseg as $k => $v) {
if (!isset($useg[$k]) || $useg[$k] !== $v) {
break;
}
$cnt++;
}
$str = './' . str_repeat('../', count($useg) - $cnt) . implode('/', array_slice($useg, $cnt));
if ($url->getQuery()) {
$str .= '?' . $url->getQuery();
}
if ($url->getFragment()) {
$str .= '#' . $url->getFragment();
}
return $str;
}
$str = preg_replace('(^[^?]+)', '', $str);
if ($this->getQuery() !== $url->getQuery() || $url->getFragment() === null) {
return $str;
}
return '#' . $url->getFragment();
}
/**
* @param $url
* @param $expectedScheme
*
* @dataProvider dataProviderForTestGetScheme
*/
public function testGetScheme($url, $expectedScheme)
{
$url = new Url($url);
$this->assertEquals($expectedScheme, $url->getScheme());
}
public function testUrlFragmentEncoding()
{
$url = new Url('http://127.0.0.1/foobar?bar=foo#!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~');
$this->assertEquals('http', $url->getScheme());
$this->assertEquals(null, $url->getUserInfo());
$this->assertEquals('127.0.0.1', $url->getHost());
$this->assertEquals(null, $url->getPort());
$this->assertEquals('/foobar', $url->getPath());
$this->assertEquals(array('bar' => 'foo'), $url->getParameters());
$this->assertEquals('!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~', $url->getFragment());
}
/**
* Get URL scheme.
*
* @param string url Url for which the scheme is requested
*
* @return mixed the URL scheme or false if none is provided.
*/
function get_url_scheme($url)
{
$obj_url = new Url($url);
return $obj_url->getScheme();
}
function renderPage()
{
$LINKSDB = new LinkDB($GLOBALS['config']['DATASTORE'], isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], $GLOBALS['config']['HIDE_PUBLIC_LINKS']);
// -------- Display login form.
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"], 'do=login')) {
if ($GLOBALS['config']['OPEN_SHAARLI']) {
header('Location: ?');
exit;
}
// No need to login for open Shaarli
$token = '';
if (ban_canLogin()) {
$token = getToken();
}
// Do not waste token generation if not useful.
$PAGE = new pageBuilder();
$PAGE->assign('token', $token);
$PAGE->assign('returnurl', isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : '');
$PAGE->renderPage('loginform');
exit;
}
// -------- User wants to logout.
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"], 'do=logout')) {
invalidateCaches($GLOBALS['config']['PAGECACHE']);
logout();
header('Location: ?');
exit;
}
// -------- Picture wall
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"], 'do=picwall')) {
// Optionally filter the results:
$links = array();
if (!empty($_GET['searchterm'])) {
$links = $LINKSDB->filterFulltext($_GET['searchterm']);
} elseif (!empty($_GET['searchtags'])) {
$links = $LINKSDB->filterTags(trim($_GET['searchtags']));
} else {
$links = $LINKSDB;
}
$body = '';
$linksToDisplay = array();
// Get only links which have a thumbnail.
foreach ($links as $link) {
$permalink = '?' . escape(smallhash($link['linkdate']));
$thumb = lazyThumbnail($link['url'], $permalink);
if ($thumb != '') {
$link['thumbnail'] = $thumb;
// Thumbnail HTML code.
$linksToDisplay[] = $link;
// Add to array.
}
}
$PAGE = new pageBuilder();
$PAGE->assign('linkcount', count($LINKSDB));
$PAGE->assign('linksToDisplay', $linksToDisplay);
$PAGE->renderPage('picwall');
exit;
}
// -------- Tag cloud
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"], 'do=tagcloud')) {
$tags = $LINKSDB->allTags();
// We sort tags alphabetically, then choose a font size according to count.
// First, find max value.
$maxcount = 0;
foreach ($tags as $key => $value) {
$maxcount = max($maxcount, $value);
}
ksort($tags);
$tagList = array();
foreach ($tags as $key => $value) {
$tagList[$key] = array('count' => $value, 'size' => log($value, 15) / log($maxcount, 30) * (22 - 6) + 6);
}
$PAGE = new pageBuilder();
$PAGE->assign('linkcount', count($LINKSDB));
$PAGE->assign('tags', $tagList);
$PAGE->renderPage('tagcloud');
exit;
}
// -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
if (isset($_GET['addtag'])) {
// Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
if (empty($_SERVER['HTTP_REFERER'])) {
header('Location: ?searchtags=' . urlencode($_GET['addtag']));
exit;
}
// In case browser does not send HTTP_REFERER
parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params);
// Prevent redirection loop
if (isset($params['addtag'])) {
unset($params['addtag']);
}
// Check if this tag is already in the search query and ignore it if it is.
// Each tag is always separated by a space
if (isset($params['searchtags'])) {
$current_tags = explode(' ', $params['searchtags']);
} else {
$current_tags = array();
}
$addtag = true;
foreach ($current_tags as $value) {
if ($value === $_GET['addtag']) {
$addtag = false;
break;
}
}
// Append the tag if necessary
if (empty($params['searchtags'])) {
$params['searchtags'] = trim($_GET['addtag']);
} else {
if ($addtag) {
$params['searchtags'] = trim($params['searchtags']) . ' ' . trim($_GET['addtag']);
}
}
unset($params['page']);
// We also remove page (keeping the same page has no sense, since the results are different)
header('Location: ?' . http_build_query($params));
exit;
}
// -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
if (isset($_GET['removetag'])) {
// Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
if (empty($_SERVER['HTTP_REFERER'])) {
header('Location: ?');
exit;
}
// In case browser does not send HTTP_REFERER
parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params);
// Prevent redirection loop
if (isset($params['removetag'])) {
unset($params['removetag']);
}
if (isset($params['searchtags'])) {
$tags = explode(' ', $params['searchtags']);
$tags = array_diff($tags, array($_GET['removetag']));
// Remove value from array $tags.
if (count($tags) == 0) {
unset($params['searchtags']);
} else {
$params['searchtags'] = implode(' ', $tags);
}
unset($params['page']);
// We also remove page (keeping the same page has no sense, since the results are different)
}
header('Location: ?' . http_build_query($params));
exit;
}
// -------- User wants to change the number of links per page (linksperpage=...)
if (isset($_GET['linksperpage'])) {
if (is_numeric($_GET['linksperpage'])) {
$_SESSION['LINKS_PER_PAGE'] = abs(intval($_GET['linksperpage']));
}
header('Location: ' . generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage')));
exit;
}
// -------- User wants to see only private links (toggle)
if (isset($_GET['privateonly'])) {
if (empty($_SESSION['privateonly'])) {
$_SESSION['privateonly'] = 1;
// See only private links
} else {
unset($_SESSION['privateonly']);
// See all links
}
header('Location: ' . generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('privateonly')));
exit;
}
// -------- Handle other actions allowed for non-logged in users:
if (!isLoggedIn()) {
// User tries to post new link but is not logged in:
// Show login screen, then redirect to ?post=...
if (isset($_GET['post'])) {
header('Location: ?do=login&post=' . urlencode($_GET['post']) . (!empty($_GET['title']) ? '&title=' . urlencode($_GET['title']) : '') . (!empty($_GET['description']) ? '&description=' . urlencode($_GET['description']) : '') . (!empty($_GET['source']) ? '&source=' . urlencode($_GET['source']) : ''));
// Redirect to login page, then back to post link.
exit;
}
// Same case as above except that user tried to access ?do=addlink without being logged in
// Note: passing empty parameters makes Shaarli generate default URLs and descriptions.
if (isset($_GET['do']) && $_GET['do'] === 'addlink') {
header('Location: ?do=login&post=');
exit;
}
if (isset($_GET['edit_link'])) {
header('Location: ?do=login&edit_link=' . escape($_GET['edit_link']));
exit;
}
$PAGE = new pageBuilder();
buildLinkList($PAGE, $LINKSDB);
// Compute list of links to display
$PAGE->renderPage('linklist');
exit;
// Never remove this one! All operations below are reserved for logged in user.
}
// -------- All other functions are reserved for the registered user:
// -------- Display the Tools menu if requested (import/export/bookmarklet...)
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"], 'do=tools')) {
$PAGE = new pageBuilder();
$PAGE->assign('linkcount', count($LINKSDB));
$PAGE->assign('pageabsaddr', indexUrl());
$PAGE->renderPage('tools');
exit;
}
// -------- User wants to change his/her password.
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"], 'do=changepasswd')) {
if ($GLOBALS['config']['OPEN_SHAARLI']) {
die('You are not supposed to change a password on an Open Shaarli.');
}
if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword'])) {
if (!tokenOk($_POST['token'])) {
die('Wrong token.');
}
// Go away!
// Make sure old password is correct.
$oldhash = sha1($_POST['oldpassword'] . $GLOBALS['login'] . $GLOBALS['salt']);
if ($oldhash != $GLOBALS['hash']) {
echo '<script>alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>';
exit;
}
// Save new password
$GLOBALS['salt'] = sha1(uniqid('', true) . '_' . mt_rand());
// Salt renders rainbow-tables attacks useless.
$GLOBALS['hash'] = sha1($_POST['setpassword'] . $GLOBALS['login'] . $GLOBALS['salt']);
try {
writeConfig($GLOBALS, isLoggedIn());
} catch (Exception $e) {
error_log('ERROR while writing config file after changing password.' . PHP_EOL . $e->getMessage());
// TODO: do not handle exceptions/errors in JS.
echo '<script>alert("' . $e->getMessage() . '");document.location=\'?do=tools\';</script>';
exit;
}
echo '<script>alert("Your password has been changed.");document.location=\'?do=tools\';</script>';
exit;
} else {
$PAGE = new pageBuilder();
$PAGE->assign('linkcount', count($LINKSDB));
$PAGE->assign('token', getToken());
$PAGE->renderPage('changepassword');
exit;
}
}
// -------- User wants to change configuration
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"], 'do=configure')) {
if (!empty($_POST['title'])) {
if (!tokenOk($_POST['token'])) {
die('Wrong token.');
}
// Go away!
$tz = 'UTC';
if (!empty($_POST['continent']) && !empty($_POST['city'])) {
if (isTimeZoneValid($_POST['continent'], $_POST['city'])) {
$tz = $_POST['continent'] . '/' . $_POST['city'];
}
}
$GLOBALS['timezone'] = $tz;
$GLOBALS['title'] = $_POST['title'];
$GLOBALS['titleLink'] = $_POST['titleLink'];
$GLOBALS['redirector'] = $_POST['redirector'];
$GLOBALS['disablesessionprotection'] = !empty($_POST['disablesessionprotection']);
$GLOBALS['privateLinkByDefault'] = !empty($_POST['privateLinkByDefault']);
$GLOBALS['config']['ENABLE_RSS_PERMALINKS'] = !empty($_POST['enableRssPermalinks']);
$GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']);
$GLOBALS['config']['HIDE_PUBLIC_LINKS'] = !empty($_POST['hidePublicLinks']);
try {
writeConfig($GLOBALS, isLoggedIn());
} catch (Exception $e) {
error_log('ERROR while writing config file after configuration update.' . PHP_EOL . $e->getMessage());
// TODO: do not handle exceptions/errors in JS.
echo '<script>alert("' . $e->getMessage() . '");document.location=\'?do=tools\';</script>';
exit;
}
echo '<script>alert("Configuration was saved.");document.location=\'?do=tools\';</script>';
exit;
} else {
$PAGE = new pageBuilder();
$PAGE->assign('linkcount', count($LINKSDB));
$PAGE->assign('token', getToken());
$PAGE->assign('title', empty($GLOBALS['title']) ? '' : $GLOBALS['title']);
$PAGE->assign('redirector', empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']);
list($timezone_form, $timezone_js) = generateTimeZoneForm($GLOBALS['timezone']);
$PAGE->assign('timezone_form', $timezone_form);
$PAGE->assign('timezone_js', $timezone_js);
$PAGE->renderPage('configure');
exit;
}
}
// -------- User wants to rename a tag or delete it
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"], 'do=changetag')) {
if (empty($_POST['fromtag'])) {
$PAGE = new pageBuilder();
$PAGE->assign('linkcount', count($LINKSDB));
$PAGE->assign('token', getToken());
$PAGE->assign('tags', $LINKSDB->allTags());
$PAGE->renderPage('changetag');
exit;
}
if (!tokenOk($_POST['token'])) {
die('Wrong token.');
}
// Delete a tag:
if (!empty($_POST['deletetag']) && !empty($_POST['fromtag'])) {
$needle = trim($_POST['fromtag']);
$linksToAlter = $LINKSDB->filterTags($needle, true);
// True for case-sensitive tag search.
foreach ($linksToAlter as $key => $value) {
$tags = explode(' ', trim($value['tags']));
unset($tags[array_search($needle, $tags)]);
// Remove tag.
$value['tags'] = trim(implode(' ', $tags));
$LINKSDB[$key] = $value;
}
$LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
// Save to disk.
echo '<script>alert("Tag was removed from ' . count($linksToAlter) . ' links.");document.location=\'?\';</script>';
exit;
}
// Rename a tag:
if (!empty($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) {
$needle = trim($_POST['fromtag']);
$linksToAlter = $LINKSDB->filterTags($needle, true);
// true for case-sensitive tag search.
foreach ($linksToAlter as $key => $value) {
$tags = explode(' ', trim($value['tags']));
$tags[array_search($needle, $tags)] = trim($_POST['totag']);
// Replace tags value.
$value['tags'] = trim(implode(' ', $tags));
$LINKSDB[$key] = $value;
}
$LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
// Save to disk.
echo '<script>alert("Tag was renamed in ' . count($linksToAlter) . ' links.");document.location=\'?searchtags=' . urlencode($_POST['totag']) . '\';</script>';
exit;
}
}
// -------- User wants to add a link without using the bookmarklet: Show form.
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"], 'do=addlink')) {
$PAGE = new pageBuilder();
$PAGE->assign('linkcount', count($LINKSDB));
$PAGE->renderPage('addlink');
exit;
}
// -------- User clicked the "Save" button when editing a link: Save link to database.
if (isset($_POST['save_edit'])) {
if (!tokenOk($_POST['token'])) {
die('Wrong token.');
}
// Go away!
$tags = trim(preg_replace('/\\s\\s+/', ' ', $_POST['lf_tags']));
// Remove multiple spaces.
$tags = implode(' ', array_unique(explode(' ', $tags)));
// Remove duplicates.
$linkdate = $_POST['lf_linkdate'];
$url = trim($_POST['lf_url']);
if (!startsWith($url, 'http:') && !startsWith($url, 'https:') && !startsWith($url, 'ftp:') && !startsWith($url, 'magnet:') && !startsWith($url, '?') && !startsWith($url, 'javascript:')) {
$url = 'http://' . $url;
}
$link = array('title' => trim($_POST['lf_title']), 'url' => $url, 'description' => trim($_POST['lf_description']), 'private' => isset($_POST['lf_private']) ? 1 : 0, 'linkdate' => $linkdate, 'tags' => str_replace(',', ' ', $tags));
if ($link['title'] == '') {
$link['title'] = $link['url'];
}
// If title is empty, use the URL as title.
$LINKSDB[$linkdate] = $link;
$LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
// Save to disk.
pubsubhub();
// If we are called from the bookmarklet, we must close the popup:
if (isset($_GET['source']) && ($_GET['source'] == 'bookmarklet' || $_GET['source'] == 'firefoxsocialapi')) {
echo '<script>self.close();</script>';
exit;
}
$returnurl = !empty($_POST['returnurl']) ? escape($_POST['returnurl']) : '?';
$returnurl .= '#' . smallHash($_POST['lf_linkdate']);
// Scroll to the link which has been edited.
$location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
header('Location: ' . $location);
// After saving the link, redirect to the page the user was on.
exit;
}
// -------- User clicked the "Cancel" button when editing a link.
if (isset($_POST['cancel_edit'])) {
// If we are called from the bookmarklet, we must close the popup:
if (isset($_GET['source']) && ($_GET['source'] == 'bookmarklet' || $_GET['source'] == 'firefoxsocialapi')) {
echo '<script>self.close();</script>';
exit;
}
$returnurl = isset($_POST['returnurl']) ? $_POST['returnurl'] : '?';
$returnurl .= '#' . smallHash($_POST['lf_linkdate']);
// Scroll to the link which has been edited.
$returnurl = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
header('Location: ' . $returnurl);
// After canceling, redirect to the page the user was on.
exit;
}
// -------- User clicked the "Delete" button when editing a link: Delete link from database.
if (isset($_POST['delete_link'])) {
if (!tokenOk($_POST['token'])) {
die('Wrong token.');
}
// We do not need to ask for confirmation:
// - confirmation is handled by JavaScript
// - we are protected from XSRF by the token.
$linkdate = $_POST['lf_linkdate'];
unset($LINKSDB[$linkdate]);
$LINKSDB->savedb($GLOBALS['config']['PAGECACHE']);
// save to disk
// If we are called from the bookmarklet, we must close the popup:
if (isset($_GET['source']) && ($_GET['source'] == 'bookmarklet' || $_GET['source'] == 'firefoxsocialapi')) {
echo '<script>self.close();</script>';
exit;
}
// Pick where we're going to redirect
// =============================================================
// Basically, we can't redirect to where we were previously if it was a permalink
// or an edit_link, because it would 404.
// Cases:
// - / : nothing in $_GET, redirect to self
// - /?page : redirect to self
// - /?searchterm : redirect to self (there might be other links)
// - /?searchtags : redirect to self
// - /permalink : redirect to / (the link does not exist anymore)
// - /?edit_link : redirect to / (the link does not exist anymore)
// PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
// redirect is not satisfied, and only then redirect to /
$location = "?";
// Self redirection
if (count($_GET) == 0 || isset($_GET['page']) || isset($_GET['searchterm']) || isset($_GET['searchtags'])) {
if (isset($_POST['returnurl'])) {
$location = $_POST['returnurl'];
// Handle redirects given by the form
} else {
$location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('delete_link'));
}
}
header('Location: ' . $location);
// After deleting the link, redirect to appropriate location
exit;
}
// -------- User clicked the "EDIT" button on a link: Display link edit form.
if (isset($_GET['edit_link'])) {
$link = $LINKSDB[$_GET['edit_link']];
// Read database
if (!$link) {
header('Location: ?');
exit;
}
// Link not found in database.
$PAGE = new pageBuilder();
$PAGE->assign('linkcount', count($LINKSDB));
$PAGE->assign('link', $link);
$PAGE->assign('link_is_new', false);
$PAGE->assign('token', getToken());
// XSRF protection.
$PAGE->assign('http_referer', isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : '');
$PAGE->assign('tags', $LINKSDB->allTags());
$PAGE->renderPage('editlink');
exit;
}
// -------- User want to post a new link: Display link edit form.
if (isset($_GET['post'])) {
$url = new Url($_GET['post']);
$url->cleanup();
$link_is_new = false;
// Check if URL is not already in database (in this case, we will edit the existing link)
$link = $LINKSDB->getLinkFromUrl((string) $url);
if (!$link) {
$link_is_new = true;
$linkdate = strval(date('Ymd_His'));
// Get title if it was provided in URL (by the bookmarklet).
$title = empty($_GET['title']) ? '' : $_GET['title'];
// Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
$description = empty($_GET['description']) ? '' : $_GET['description'];
$tags = empty($_GET['tags']) ? '' : $_GET['tags'];
$private = !empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0;
// If this is an HTTP(S) link, we try go get the page to extract the title (otherwise we will to straight to the edit form.)
if (empty($title) && strpos($url->getScheme(), 'http') !== false) {
list($status, $headers, $data) = getHTTP($url, 4);
// Short timeout to keep the application responsive.
// FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
if (strpos($status, '200 OK') !== false) {
// Look for charset in html header.
preg_match('#<meta .*charset=.*>#Usi', $data, $meta);
// If found, extract encoding.
if (!empty($meta[0])) {
// Get encoding specified in header.
preg_match('#charset="?(.*)"#si', $meta[0], $enc);
// If charset not found, use utf-8.
$html_charset = !empty($enc[1]) ? strtolower($enc[1]) : 'utf-8';
} else {
$html_charset = 'utf-8';
}
// Extract title
$title = html_extract_title($data);
if (!empty($title)) {
// Re-encode title in utf-8 if necessary.
$title = $html_charset == 'iso-8859-1' ? utf8_encode($title) : $title;
}
}
}
if ($url == '') {
$url = '?' . smallHash($linkdate);
$title = 'Note: ';
}
$link = array('linkdate' => $linkdate, 'title' => $title, 'url' => (string) $url, 'description' => $description, 'tags' => $tags, 'private' => $private);
}
$PAGE = new pageBuilder();
$PAGE->assign('linkcount', count($LINKSDB));
$PAGE->assign('link', $link);
$PAGE->assign('link_is_new', $link_is_new);
$PAGE->assign('token', getToken());
// XSRF protection.
$PAGE->assign('http_referer', isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '');
$PAGE->assign('source', isset($_GET['source']) ? $_GET['source'] : '');
$PAGE->assign('tags', $LINKSDB->allTags());
$PAGE->renderPage('editlink');
exit;
}
// -------- Export as Netscape Bookmarks HTML file.
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"], 'do=export')) {
if (empty($_GET['what'])) {
$PAGE = new pageBuilder();
$PAGE->assign('linkcount', count($LINKSDB));
$PAGE->renderPage('export');
exit;
}
$exportWhat = $_GET['what'];
if (!array_intersect(array('all', 'public', 'private'), array($exportWhat))) {
die('What are you trying to export???');
}
header('Content-Type: text/html; charset=utf-8');
header('Content-disposition: attachment; filename=bookmarks_' . $exportWhat . '_' . strval(date('Ymd_His')) . '.html');
$currentdate = date('Y/m/d H:i:s');
echo <<<HTML
<!DOCTYPE NETSCAPE-Bookmark-file-1>
<!-- This is an automatically generated file.
It will be read and overwritten.
DO NOT EDIT! -->
<!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
<TITLE>Bookmarks</TITLE>
<H1>Bookmarks</H1>
HTML;
foreach ($LINKSDB as $link) {
if ($exportWhat == 'all' || $exportWhat == 'private' && $link['private'] != 0 || $exportWhat == 'public' && $link['private'] == 0) {
echo '<DT><A HREF="' . $link['url'] . '" ADD_DATE="' . linkdate2timestamp($link['linkdate']) . '" PRIVATE="' . $link['private'] . '"';
if ($link['tags'] != '') {
echo ' TAGS="' . str_replace(' ', ',', $link['tags']) . '"';
}
echo '>' . $link['title'] . "</A>\n";
if ($link['description'] != '') {
echo '<DD>' . $link['description'] . "\n";
}
}
}
exit;
}
// -------- User is uploading a file for import
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"], 'do=upload')) {
// If file is too big, some form field may be missing.
if (!isset($_POST['token']) || !isset($_FILES) || isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size'] == 0) {
$returnurl = empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'];
echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept (' . getMaxFileSize() . ' bytes). Please upload in smaller chunks.");document.location=\'' . escape($returnurl) . '\';</script>';
exit;
}
if (!tokenOk($_POST['token'])) {
die('Wrong token.');
}
importFile();
exit;
}
// -------- Show upload/import dialog:
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"], 'do=import')) {
$PAGE = new pageBuilder();
$PAGE->assign('linkcount', count($LINKSDB));
$PAGE->assign('token', getToken());
$PAGE->assign('maxfilesize', getMaxFileSize());
$PAGE->renderPage('import');
exit;
}
// -------- Otherwise, simply display search form and links:
$PAGE = new pageBuilder();
buildLinkList($PAGE, $LINKSDB);
// Compute list of links to display
$PAGE->renderPage('linklist');
exit;
}
