aboutsummaryrefslogtreecommitdiffhomepage
path: root/index.php
diff options
context:
space:
mode:
Diffstat (limited to 'index.php')
-rw-r--r--index.php527
1 files changed, 98 insertions, 429 deletions
diff --git a/index.php b/index.php
index 5fc880e6..1480bbc5 100644
--- a/index.php
+++ b/index.php
@@ -75,11 +75,12 @@ require_once 'application/Utils.php';
75require_once 'application/PluginManager.php'; 75require_once 'application/PluginManager.php';
76require_once 'application/Router.php'; 76require_once 'application/Router.php';
77require_once 'application/Updater.php'; 77require_once 'application/Updater.php';
78use \Shaarli\Languages;
79use \Shaarli\ThemeUtils;
80use \Shaarli\Config\ConfigManager; 78use \Shaarli\Config\ConfigManager;
79use \Shaarli\Languages;
81use \Shaarli\Security\LoginManager; 80use \Shaarli\Security\LoginManager;
82use \Shaarli\Security\SessionManager; 81use \Shaarli\Security\SessionManager;
82use \Shaarli\ThemeUtils;
83use \Shaarli\Thumbnailer;
83 84
84// Ensure the PHP version is supported 85// Ensure the PHP version is supported
85try { 86try {
@@ -513,7 +514,8 @@ function renderPage($conf, $pluginManager, $LINKSDB, $history, $sessionManager,
513 read_updates_file($conf->get('resource.updates')), 514 read_updates_file($conf->get('resource.updates')),
514 $LINKSDB, 515 $LINKSDB,
515 $conf, 516 $conf,
516 $loginManager->isLoggedIn() 517 $loginManager->isLoggedIn(),
518 $_SESSION
517 ); 519 );
518 try { 520 try {
519 $newUpdates = $updater->update(); 521 $newUpdates = $updater->update();
@@ -528,7 +530,7 @@ function renderPage($conf, $pluginManager, $LINKSDB, $history, $sessionManager,
528 die($e->getMessage()); 530 die($e->getMessage());
529 } 531 }
530 532
531 $PAGE = new PageBuilder($conf, $LINKSDB, $sessionManager->generateToken(), $loginManager->isLoggedIn()); 533 $PAGE = new PageBuilder($conf, $_SESSION, $LINKSDB, $sessionManager->generateToken(), $loginManager->isLoggedIn());
532 $PAGE->assign('linkcount', count($LINKSDB)); 534 $PAGE->assign('linkcount', count($LINKSDB));
533 $PAGE->assign('privateLinkcount', count_private($LINKSDB)); 535 $PAGE->assign('privateLinkcount', count_private($LINKSDB));
534 $PAGE->assign('plugin_errors', $pluginManager->getErrors()); 536 $PAGE->assign('plugin_errors', $pluginManager->getErrors());
@@ -601,19 +603,23 @@ function renderPage($conf, $pluginManager, $LINKSDB, $history, $sessionManager,
601 // -------- Picture wall 603 // -------- Picture wall
602 if ($targetPage == Router::$PAGE_PICWALL) 604 if ($targetPage == Router::$PAGE_PICWALL)
603 { 605 {
606 $PAGE->assign('pagetitle', t('Picture wall') .' - '. $conf->get('general.title', 'Shaarli'));
607 if (! $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) === Thumbnailer::MODE_NONE) {
608 $PAGE->assign('linksToDisplay', []);
609 $PAGE->renderPage('picwall');
610 exit;
611 }
612
604 // Optionally filter the results: 613 // Optionally filter the results:
605 $links = $LINKSDB->filterSearch($_GET); 614 $links = $LINKSDB->filterSearch($_GET);
606 $linksToDisplay = array(); 615 $linksToDisplay = array();
607 616
608 // Get only links which have a thumbnail. 617 // Get only links which have a thumbnail.
609 foreach($links as $link) 618 // Note: we do not retrieve thumbnails here, the request is too heavy.
619 foreach($links as $key => $link)
610 { 620 {
611 $permalink='?'.$link['shorturl']; 621 if (isset($link['thumbnail']) && $link['thumbnail'] !== false) {
612 $thumb=lazyThumbnail($conf, $link['url'],$permalink); 622 $linksToDisplay[] = $link; // Add to array.
613 if ($thumb!='') // Only output links which have a thumbnail.
614 {
615 $link['thumbnail']=$thumb; // Thumbnail HTML code.
616 $linksToDisplay[]=$link; // Add to array.
617 } 623 }
618 } 624 }
619 625
@@ -626,7 +632,7 @@ function renderPage($conf, $pluginManager, $LINKSDB, $history, $sessionManager,
626 $PAGE->assign($key, $value); 632 $PAGE->assign($key, $value);
627 } 633 }
628 634
629 $PAGE->assign('pagetitle', t('Picture wall') .' - '. $conf->get('general.title', 'Shaarli')); 635
630 $PAGE->renderPage('picwall'); 636 $PAGE->renderPage('picwall');
631 exit; 637 exit;
632 } 638 }
@@ -1009,6 +1015,16 @@ function renderPage($conf, $pluginManager, $LINKSDB, $history, $sessionManager,
1009 $conf->set('api.secret', escape($_POST['apiSecret'])); 1015 $conf->set('api.secret', escape($_POST['apiSecret']));
1010 $conf->set('translation.language', escape($_POST['language'])); 1016 $conf->set('translation.language', escape($_POST['language']));
1011 1017
1018 $thumbnailsMode = extension_loaded('gd') ? $_POST['enableThumbnails'] : Thumbnailer::MODE_NONE;
1019 if ($thumbnailsMode !== Thumbnailer::MODE_NONE
1020 && $thumbnailsMode !== $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE)
1021 ) {
1022 $_SESSION['warnings'][] = t(
1023 'You have enabled or changed thumbnails mode. <a href="?do=thumbs_update">Please synchronize them</a>.'
1024 );
1025 }
1026 $conf->set('thumbnails.mode', $thumbnailsMode);
1027
1012 try { 1028 try {
1013 $conf->write($loginManager->isLoggedIn()); 1029 $conf->write($loginManager->isLoggedIn());
1014 $history->updateSettings(); 1030 $history->updateSettings();
@@ -1047,6 +1063,8 @@ function renderPage($conf, $pluginManager, $LINKSDB, $history, $sessionManager,
1047 $PAGE->assign('api_secret', $conf->get('api.secret')); 1063 $PAGE->assign('api_secret', $conf->get('api.secret'));
1048 $PAGE->assign('languages', Languages::getAvailableLanguages()); 1064 $PAGE->assign('languages', Languages::getAvailableLanguages());
1049 $PAGE->assign('language', $conf->get('translation.language')); 1065 $PAGE->assign('language', $conf->get('translation.language'));
1066 $PAGE->assign('gd_enabled', extension_loaded('gd'));
1067 $PAGE->assign('thumbnails_mode', $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE));
1050 $PAGE->assign('pagetitle', t('Configure') .' - '. $conf->get('general.title', 'Shaarli')); 1068 $PAGE->assign('pagetitle', t('Configure') .' - '. $conf->get('general.title', 'Shaarli'));
1051 $PAGE->renderPage('configure'); 1069 $PAGE->renderPage('configure');
1052 exit; 1070 exit;
@@ -1148,6 +1166,11 @@ function renderPage($conf, $pluginManager, $LINKSDB, $history, $sessionManager,
1148 $link['title'] = $link['url']; 1166 $link['title'] = $link['url'];
1149 } 1167 }
1150 1168
1169 if ($conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE) {
1170 $thumbnailer = new Thumbnailer($conf);
1171 $link['thumbnail'] = $thumbnailer->get($url);
1172 }
1173
1151 $pluginManager->executeHooks('save_link', $link); 1174 $pluginManager->executeHooks('save_link', $link);
1152 1175
1153 $LINKSDB[$id] = $link; 1176 $LINKSDB[$id] = $link;
@@ -1486,6 +1509,43 @@ function renderPage($conf, $pluginManager, $LINKSDB, $history, $sessionManager,
1486 exit; 1509 exit;
1487 } 1510 }
1488 1511
1512 // -------- Thumbnails Update
1513 if ($targetPage == Router::$PAGE_THUMBS_UPDATE) {
1514 $ids = [];
1515 foreach ($LINKSDB as $link) {
1516 // A note or not HTTP(S)
1517 if ($link['url'][0] === '?' || ! startsWith(strtolower($link['url']), 'http')) {
1518 continue;
1519 }
1520 $ids[] = $link['id'];
1521 }
1522 $PAGE->assign('ids', $ids);
1523 $PAGE->assign('pagetitle', t('Thumbnails update') .' - '. $conf->get('general.title', 'Shaarli'));
1524 $PAGE->renderPage('thumbnails');
1525 exit;
1526 }
1527
1528 // -------- Single Thumbnail Update
1529 if ($targetPage == Router::$AJAX_THUMB_UPDATE) {
1530 if (! isset($_POST['id']) || ! ctype_digit($_POST['id'])) {
1531 http_response_code(400);
1532 exit;
1533 }
1534 $id = (int) $_POST['id'];
1535 if (empty($LINKSDB[$id])) {
1536 http_response_code(404);
1537 exit;
1538 }
1539 $thumbnailer = new Thumbnailer($conf);
1540 $link = $LINKSDB[$id];
1541 $link['thumbnail'] = $thumbnailer->get($link['url']);
1542 $LINKSDB[$id] = $link;
1543 $LINKSDB->save($conf->get('resource.page_cache'));
1544
1545 echo json_encode($link);
1546 exit;
1547 }
1548
1489 // -------- Otherwise, simply display search form and links: 1549 // -------- Otherwise, simply display search form and links:
1490 showLinkList($PAGE, $LINKSDB, $conf, $pluginManager, $loginManager); 1550 showLinkList($PAGE, $LINKSDB, $conf, $pluginManager, $loginManager);
1491 exit; 1551 exit;
@@ -1549,6 +1609,12 @@ function buildLinkList($PAGE, $LINKSDB, $conf, $pluginManager, $loginManager)
1549 // Start index. 1609 // Start index.
1550 $i = ($page-1) * $_SESSION['LINKS_PER_PAGE']; 1610 $i = ($page-1) * $_SESSION['LINKS_PER_PAGE'];
1551 $end = $i + $_SESSION['LINKS_PER_PAGE']; 1611 $end = $i + $_SESSION['LINKS_PER_PAGE'];
1612
1613 $thumbnailsEnabled = $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE;
1614 if ($thumbnailsEnabled) {
1615 $thumbnailer = new Thumbnailer($conf);
1616 }
1617
1552 $linkDisp = array(); 1618 $linkDisp = array();
1553 while ($i<$end && $i<count($keys)) 1619 while ($i<$end && $i<count($keys))
1554 { 1620 {
@@ -1569,9 +1635,21 @@ function buildLinkList($PAGE, $LINKSDB, $conf, $pluginManager, $loginManager)
1569 $taglist = preg_split('/\s+/', $link['tags'], -1, PREG_SPLIT_NO_EMPTY); 1635 $taglist = preg_split('/\s+/', $link['tags'], -1, PREG_SPLIT_NO_EMPTY);
1570 uasort($taglist, 'strcasecmp'); 1636 uasort($taglist, 'strcasecmp');
1571 $link['taglist'] = $taglist; 1637 $link['taglist'] = $taglist;
1638
1639 // Thumbnails enabled, not a note,
1640 // and (never retrieved yet or no valid cache file)
1641 if ($thumbnailsEnabled && $link['url'][0] != '?'
1642 && (! isset($link['thumbnail']) || ($link['thumbnail'] !== false && ! is_file($link['thumbnail'])))
1643 ) {
1644 $elem = $LINKSDB[$keys[$i]];
1645 $elem['thumbnail'] = $thumbnailer->get($link['url']);
1646 $LINKSDB[$keys[$i]] = $elem;
1647 $updateDB = true;
1648 $link['thumbnail'] = $elem['thumbnail'];
1649 }
1650
1572 // Check for both signs of a note: starting with ? and 7 chars long. 1651 // Check for both signs of a note: starting with ? and 7 chars long.
1573 if ($link['url'][0] === '?' && 1652 if ($link['url'][0] === '?' && strlen($link['url']) === 7) {
1574 strlen($link['url']) === 7) {
1575 $link['url'] = index_url($_SERVER) . $link['url']; 1653 $link['url'] = index_url($_SERVER) . $link['url'];
1576 } 1654 }
1577 1655
@@ -1579,6 +1657,11 @@ function buildLinkList($PAGE, $LINKSDB, $conf, $pluginManager, $loginManager)
1579 $i++; 1657 $i++;
1580 } 1658 }
1581 1659
1660 // If we retrieved new thumbnails, we update the database.
1661 if (!empty($updateDB)) {
1662 $LINKSDB->save($conf->get('resource.page_cache'));
1663 }
1664
1582 // Compute paging navigation 1665 // Compute paging navigation
1583 $searchtagsUrl = $searchtags === '' ? '' : '&searchtags=' . urlencode($searchtags); 1666 $searchtagsUrl = $searchtags === '' ? '' : '&searchtags=' . urlencode($searchtags);
1584 $searchtermUrl = empty($searchterm) ? '' : '&searchterm=' . urlencode($searchterm); 1667 $searchtermUrl = empty($searchterm) ? '' : '&searchterm=' . urlencode($searchterm);
@@ -1630,194 +1713,6 @@ function buildLinkList($PAGE, $LINKSDB, $conf, $pluginManager, $loginManager)
1630} 1713}
1631 1714
1632/** 1715/**
1633 * Compute the thumbnail for a link.
1634 *
1635 * With a link to the original URL.
1636 * Understands various services (youtube.com...)
1637 * Input: $url = URL for which the thumbnail must be found.
1638 * $href = if provided, this URL will be followed instead of $url
1639 * Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
1640 * Some of them may be missing.
1641 * Return an empty array if no thumbnail available.
1642 *
1643 * @param ConfigManager $conf Configuration Manager instance.
1644 * @param string $url
1645 * @param string|bool $href
1646 *
1647 * @return array
1648 */
1649function computeThumbnail($conf, $url, $href = false)
1650{
1651 if (!$conf->get('thumbnail.enable_thumbnails')) return array();
1652 if ($href==false) $href=$url;
1653
1654 // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
1655 // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
1656 // ^^^^^^^^^^^ ^^^^^^^^^^^
1657 $domain = parse_url($url,PHP_URL_HOST);
1658 if ($domain=='youtube.com' || $domain=='www.youtube.com')
1659 {
1660 parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail
1661 if (!empty($params['v'])) return array('src'=>'https://img.youtube.com/vi/'.$params['v'].'/default.jpg',
1662 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
1663 }
1664 if ($domain=='youtu.be') // Youtube short links
1665 {
1666 $path = parse_url($url,PHP_URL_PATH);
1667 return array('src'=>'https://img.youtube.com/vi'.$path.'/default.jpg',
1668 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
1669 }
1670 if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting
1671 {
1672 parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename.
1673 if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']),
1674 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail');
1675 }
1676
1677 if ($domain=='imgur.com')
1678 {
1679 $path = parse_url($url,PHP_URL_PATH);
1680 if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available.
1681 if (startsWith($path,'/r/')) return array('src'=>'https://i.imgur.com/'.basename($path).'s.jpg',
1682 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1683 if (startsWith($path,'/gallery/')) return array('src'=>'https://i.imgur.com'.substr($path,8).'s.jpg',
1684 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1685
1686 if (substr_count($path,'/')==1) return array('src'=>'https://i.imgur.com/'.substr($path,1).'s.jpg',
1687 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1688 }
1689 if ($domain=='i.imgur.com')
1690 {
1691 $pi = pathinfo(parse_url($url,PHP_URL_PATH));
1692 if (!empty($pi['filename'])) return array('src'=>'https://i.imgur.com/'.$pi['filename'].'s.jpg',
1693 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
1694 }
1695 if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com')
1696 {
1697 if (strpos($url,'dailymotion.com/video/')!==false)
1698 {
1699 $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url);
1700 return array('src'=>$thumburl,
1701 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail');
1702 }
1703 }
1704 if (endsWith($domain,'.imageshack.us'))
1705 {
1706 $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
1707 if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
1708 {
1709 $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext;
1710 return array('src'=>$thumburl,
1711 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail');
1712 }
1713 }
1714
1715 // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
1716 // So we deport the thumbnail generation in order not to slow down page generation
1717 // (and we also cache the thumbnail)
1718
1719 if (! $conf->get('thumbnail.enable_localcache')) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache.
1720
1721 if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')
1722 || $domain=='vimeo.com'
1723 || $domain=='ted.com' || endsWith($domain,'.ted.com')
1724 || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com')
1725 )
1726 {
1727 if ($domain=='vimeo.com')
1728 { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
1729 $path = parse_url($url,PHP_URL_PATH);
1730 if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL.
1731 }
1732 if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
1733 { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
1734 $path = parse_url($url,PHP_URL_PATH);
1735 if (!preg_match('!/\d+.+?!',$path)) return array();
1736 }
1737 if ($domain=='ted.com' || endsWith($domain,'.ted.com'))
1738 { // Make sure this TED URL points to a video (/talks/...)
1739 $path = parse_url($url,PHP_URL_PATH);
1740 if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL.
1741 }
1742 $sign = hash_hmac('sha256', $url, $conf->get('credentials.salt')); // We use the salt to sign data (it's random, secret, and specific to each installation)
1743 return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
1744 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
1745 }
1746
1747 // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
1748 // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
1749 // But using the extension will do.
1750 $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
1751 if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
1752 {
1753 $sign = hash_hmac('sha256', $url, $conf->get('credentials.salt')); // We use the salt to sign data (it's random, secret, and specific to each installation)
1754 return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
1755 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
1756 }
1757 return array(); // No thumbnail.
1758
1759}
1760
1761
1762// Returns the HTML code to display a thumbnail for a link
1763// with a link to the original URL.
1764// Understands various services (youtube.com...)
1765// Input: $url = URL for which the thumbnail must be found.
1766// $href = if provided, this URL will be followed instead of $url
1767// Returns '' if no thumbnail available.
1768function thumbnail($url,$href=false)
1769{
1770 // FIXME!
1771 global $conf;
1772 $t = computeThumbnail($conf, $url,$href);
1773 if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
1774
1775 $html='<a href="'.escape($t['href']).'"><img src="'.escape($t['src']).'"';
1776 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
1777 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
1778 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
1779 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
1780 $html.='></a>';
1781 return $html;
1782}
1783
1784// Returns the HTML code to display a thumbnail for a link
1785// for the picture wall (using lazy image loading)
1786// Understands various services (youtube.com...)
1787// Input: $url = URL for which the thumbnail must be found.
1788// $href = if provided, this URL will be followed instead of $url
1789// Returns '' if no thumbnail available.
1790function lazyThumbnail($conf, $url,$href=false)
1791{
1792 // FIXME!
1793 global $conf;
1794 $t = computeThumbnail($conf, $url,$href);
1795 if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
1796
1797 $html='<a href="'.escape($t['href']).'">';
1798
1799 // Lazy image
1800 $html.='<img class="b-lazy" src="#" data-src="'.escape($t['src']).'"';
1801
1802 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
1803 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
1804 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
1805 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
1806 $html.='>';
1807
1808 // No-JavaScript fallback.
1809 $html.='<noscript><img src="'.escape($t['src']).'"';
1810 if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
1811 if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
1812 if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
1813 if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
1814 $html.='></noscript></a>';
1815
1816 return $html;
1817}
1818
1819
1820/**
1821 * Installation 1716 * Installation
1822 * This function should NEVER be called if the file data/config.php exists. 1717 * This function should NEVER be called if the file data/config.php exists.
1823 * 1718 *
@@ -1908,7 +1803,7 @@ function install($conf, $sessionManager, $loginManager) {
1908 exit; 1803 exit;
1909 } 1804 }
1910 1805
1911 $PAGE = new PageBuilder($conf, null, $sessionManager->generateToken()); 1806 $PAGE = new PageBuilder($conf, $_SESSION, null, $sessionManager->generateToken());
1912 list($continents, $cities) = generateTimeZoneData(timezone_identifiers_list(), date_default_timezone_get()); 1807 list($continents, $cities) = generateTimeZoneData(timezone_identifiers_list(), date_default_timezone_get());
1913 $PAGE->assign('continents', $continents); 1808 $PAGE->assign('continents', $continents);
1914 $PAGE->assign('cities', $cities); 1809 $PAGE->assign('cities', $cities);
@@ -1917,232 +1812,6 @@ function install($conf, $sessionManager, $loginManager) {
1917 exit; 1812 exit;
1918} 1813}
1919 1814
1920/**
1921 * Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
1922 * I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
1923 * The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
1924 * This function is called by passing the URL:
1925 * http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
1926 * [URL] is the URL of the link (e.g. a flickr page)
1927 * [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
1928 * The function below will fetch the image from the webservice and store it in the cache.
1929 *
1930 * @param ConfigManager $conf Configuration Manager instance,
1931 */
1932function genThumbnail($conf)
1933{
1934 // Make sure the parameters in the URL were generated by us.
1935 $sign = hash_hmac('sha256', $_GET['url'], $conf->get('credentials.salt'));
1936 if ($sign!=$_GET['hmac']) die('Naughty boy!');
1937
1938 $cacheDir = $conf->get('resource.thumbnails_cache', 'cache');
1939 // Let's see if we don't already have the image for this URL in the cache.
1940 $thumbname=hash('sha1',$_GET['url']).'.jpg';
1941 if (is_file($cacheDir .'/'. $thumbname))
1942 { // We have the thumbnail, just serve it:
1943 header('Content-Type: image/jpeg');
1944 echo file_get_contents($cacheDir .'/'. $thumbname);
1945 return;
1946 }
1947 // We may also serve a blank image (if service did not respond)
1948 $blankname=hash('sha1',$_GET['url']).'.gif';
1949 if (is_file($cacheDir .'/'. $blankname))
1950 {
1951 header('Content-Type: image/gif');
1952 echo file_get_contents($cacheDir .'/'. $blankname);
1953 return;
1954 }
1955
1956 // Otherwise, generate the thumbnail.
1957 $url = $_GET['url'];
1958 $domain = parse_url($url,PHP_URL_HOST);
1959
1960 if ($domain=='flickr.com' || endsWith($domain,'.flickr.com'))
1961 {
1962 // Crude replacement to handle new flickr domain policy (They prefer www. now)
1963 $url = str_replace('http://flickr.com/','http://www.flickr.com/',$url);
1964
1965 // Is this a link to an image, or to a flickr page ?
1966 $imageurl='';
1967 if (endsWith(parse_url($url, PHP_URL_PATH), '.jpg'))
1968 { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
1969 preg_match('!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!',$url,$matches);
1970 if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg';
1971 }
1972 else // This is a flickr page (html)
1973 {
1974 // Get the flickr html page.
1975 list($headers, $content) = get_http_response($url, 20);
1976 if (strpos($headers[0], '200 OK') !== false)
1977 {
1978 // flickr now nicely provides the URL of the thumbnail in each flickr page.
1979 preg_match('!<link rel=\"image_src\" href=\"(.+?)\"!', $content, $matches);
1980 if (!empty($matches[1])) $imageurl=$matches[1];
1981
1982 // In albums (and some other pages), the link rel="image_src" is not provided,
1983 // but flickr provides:
1984 // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
1985 if ($imageurl=='')
1986 {
1987 preg_match('!<meta property=\"og:image\" content=\"(.+?)\"!', $content, $matches);
1988 if (!empty($matches[1])) $imageurl=$matches[1];
1989 }
1990 }
1991 }
1992
1993 if ($imageurl!='')
1994 { // Let's download the image.
1995 // Image is 240x120, so 10 seconds to download should be enough.
1996 list($headers, $content) = get_http_response($imageurl, 10);
1997 if (strpos($headers[0], '200 OK') !== false) {
1998 // Save image to cache.
1999 file_put_contents($cacheDir .'/'. $thumbname, $content);
2000 header('Content-Type: image/jpeg');
2001 echo $content;
2002 return;
2003 }
2004 }
2005 }
2006
2007 elseif ($domain=='vimeo.com' )
2008 {
2009 // This is more complex: we have to perform a HTTP request, then parse the result.
2010 // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
2011 $vid = substr(parse_url($url,PHP_URL_PATH),1);
2012 list($headers, $content) = get_http_response('https://vimeo.com/api/v2/video/'.escape($vid).'.php', 5);
2013 if (strpos($headers[0], '200 OK') !== false) {
2014 $t = unserialize($content);
2015 $imageurl = $t[0]['thumbnail_medium'];
2016 // Then we download the image and serve it to our client.
2017 list($headers, $content) = get_http_response($imageurl, 10);
2018 if (strpos($headers[0], '200 OK') !== false) {
2019 // Save image to cache.
2020 file_put_contents($cacheDir .'/'. $thumbname, $content);
2021 header('Content-Type: image/jpeg');
2022 echo $content;
2023 return;
2024 }
2025 }
2026 }
2027
2028 elseif ($domain=='ted.com' || endsWith($domain,'.ted.com'))
2029 {
2030 // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
2031 // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
2032 // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
2033 list($headers, $content) = get_http_response($url, 5);
2034 if (strpos($headers[0], '200 OK') !== false) {
2035 // Extract the link to the thumbnail
2036 preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!', $content, $matches);
2037 if (!empty($matches[1]))
2038 { // Let's download the image.
2039 $imageurl=$matches[1];
2040 // No control on image size, so wait long enough
2041 list($headers, $content) = get_http_response($imageurl, 20);
2042 if (strpos($headers[0], '200 OK') !== false) {
2043 $filepath = $cacheDir .'/'. $thumbname;
2044 file_put_contents($filepath, $content); // Save image to cache.
2045 if (resizeImage($filepath))
2046 {
2047 header('Content-Type: image/jpeg');
2048 echo file_get_contents($filepath);
2049 return;
2050 }
2051 }
2052 }
2053 }
2054 }
2055
2056 elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
2057 {
2058 // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
2059 // http://xkcd.com/327/
2060 // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
2061 list($headers, $content) = get_http_response($url, 5);
2062 if (strpos($headers[0], '200 OK') !== false) {
2063 // Extract the link to the thumbnail
2064 preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!', $content, $matches);
2065 if (!empty($matches[1]))
2066 { // Let's download the image.
2067 $imageurl=$matches[1];
2068 // No control on image size, so wait long enough
2069 list($headers, $content) = get_http_response($imageurl, 20);
2070 if (strpos($headers[0], '200 OK') !== false) {
2071 $filepath = $cacheDir.'/'.$thumbname;
2072 // Save image to cache.
2073 file_put_contents($filepath, $content);
2074 if (resizeImage($filepath))
2075 {
2076 header('Content-Type: image/jpeg');
2077 echo file_get_contents($filepath);
2078 return;
2079 }
2080 }
2081 }
2082 }
2083 }
2084
2085 else
2086 {
2087 // For all other domains, we try to download the image and make a thumbnail.
2088 // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
2089 list($headers, $content) = get_http_response($url, 30);
2090 if (strpos($headers[0], '200 OK') !== false) {
2091 $filepath = $cacheDir .'/'.$thumbname;
2092 // Save image to cache.
2093 file_put_contents($filepath, $content);
2094 if (resizeImage($filepath))
2095 {
2096 header('Content-Type: image/jpeg');
2097 echo file_get_contents($filepath);
2098 return;
2099 }
2100 }
2101 }
2102
2103
2104 // Otherwise, return an empty image (8x8 transparent gif)
2105 $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7');
2106 // Also put something in cache so that this URL is not requested twice.
2107 file_put_contents($cacheDir .'/'. $blankname, $blankgif);
2108 header('Content-Type: image/gif');
2109 echo $blankgif;
2110}
2111
2112// Make a thumbnail of the image (to width: 120 pixels)
2113// Returns true if success, false otherwise.
2114function resizeImage($filepath)
2115{
2116 if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible.
2117
2118 // Trick: some stupid people rename GIF as JPEG... or else.
2119 // So we really try to open each image type whatever the extension is.
2120 $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type.
2121 $im=false;
2122 $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough.
2123 $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath);
2124 $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath);
2125 if (!$im) return false; // Unable to open image (corrupted or not an image)
2126 $w = imagesx($im);
2127 $h = imagesy($im);
2128 $ystart = 0; $yheight=$h;
2129 if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; }
2130 $nw = 120; // Desired width
2131 $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height.
2132 // Resize image:
2133 $im2 = imagecreatetruecolor($nw,$nh);
2134 imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight);
2135 imageinterlace($im2,true); // For progressive JPEG.
2136 $tempname=$filepath.'_TEMP.jpg';
2137 imagejpeg($im2, $tempname, 90);
2138 imagedestroy($im);
2139 imagedestroy($im2);
2140 unlink($filepath);
2141 rename($tempname,$filepath); // Overwrite original picture with thumbnail.
2142 return true;
2143}
2144
2145if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=genthumbnail')) { genThumbnail($conf); exit; } // Thumbnail generation/cache does not need the link database.
2146if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=dailyrss')) { showDailyRSS($conf); exit; } 1815if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=dailyrss')) { showDailyRSS($conf); exit; }
2147if (!isset($_SESSION['LINKS_PER_PAGE'])) { 1816if (!isset($_SESSION['LINKS_PER_PAGE'])) {
2148 $_SESSION['LINKS_PER_PAGE'] = $conf->get('general.links_per_page', 20); 1817 $_SESSION['LINKS_PER_PAGE'] = $conf->get('general.links_per_page', 20);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 13:43:33 +0000