Update shaarli.css

[github/shaarli/Shaarli.git] / index.php

diff --git a/index.php b/index.php
index 0465a4e5bbca798b5dc1b0ca0cd26a0801450b14..c102e4222fcb8406b5af2575af6506c958ba0b63 100644 (file)
--- a/index.php
+++ b/index.php
@@ -37,6 +37,8 @@ if (is_file($GLOBALS['config']['DATADIR'].'/options.php')) require($GLOBALS['con
 define('shaarli_version','0.0.41 beta');
 define('PHPPREFIX','<?php /* '); // Prefix to encapsulate data in php code.
 define('PHPSUFFIX',' */ ?>'); // Suffix to encapsulate data in php code.
+// http://server.com/x/shaarli --> /shaarli/
+define('WEB_PATH', substr($_SERVER["REQUEST_URI"], 0, 1+strrpos($_SERVER["REQUEST_URI"], '/', 0)));
 
 // Force cookie path (but do not change lifetime)
 $cookie=session_get_cookie_params();
@@ -110,6 +112,8 @@ if (!is_file($GLOBALS['config']['CONFIG_FILE'])) install();
 
 require $GLOBALS['config']['CONFIG_FILE'];  // Read login/password hash into $GLOBALS.
 
+// a token depending of deployment salt, user password, and the current ip
+define('STAY_SIGNED_IN_TOKEN', sha1($GLOBALS['hash'].$_SERVER["REMOTE_ADDR"].$GLOBALS['salt']));
 
 autoLocale(); // Sniff browser language and set date format accordingly.
 header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling.
@@ -221,7 +225,7 @@ function nl2br_escaped($html)
     return str_replace('>','&gt;',str_replace('<','&lt;',nl2br($html)));
 }
 
-/* Returns the small hash of a string
+/* Returns the small hash of a string, using RFC 4648 base64url format
    eg. smallHash('20111006_131924') --> yZH23w
    Small hashes:
      - are unique (well, as unique as crc32, at last)
@@ -233,10 +237,7 @@ function nl2br_escaped($html)
 function smallHash($text)
 {
     $t = rtrim(base64_encode(hash('crc32',$text,true)),'=');
-    $t = str_replace('+','-',$t); // Get rid of characters which need encoding in URLs.
-    $t = str_replace('/','_',$t);
-    $t = str_replace('=','@',$t);
-    return $t;
+    return strtr($t, '+/', '-_');
 }
 
 // In a string, converts urls to clickable links.
@@ -297,16 +298,20 @@ function allIPs()
     return $ip;
 }
 
+function fillSessionInfo() {
+       $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // generate unique random number (different than phpsessionid)
+       $_SESSION['ip']=allIPs();                // We store IP address(es) of the client to make sure session is not hijacked.
+       $_SESSION['username']=$GLOBALS['login'];
+       $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT;  // Set session expiration.
+}
+
 // Check that user/password is correct.
 function check_auth($login,$password)
 {
     $hash = sha1($password.$login.$GLOBALS['salt']);
     if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash'])
     {   // Login/password is correct.
-        $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // generate unique random number (different than phpsessionid)
-        $_SESSION['ip']=allIPs();                // We store IP address(es) of the client to make sure session is not hijacked.
-        $_SESSION['username']=$login;
-        $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT;  // Set session expiration.
+               fillSessionInfo();
         logm('Login successful');
         return True;
     }
@@ -321,6 +326,11 @@ function isLoggedIn()
 
     if (!isset($GLOBALS['login'])) return false;  // Shaarli is not configured yet.
 
+       if (@$_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN)
+       {
+               fillSessionInfo();
+               return true;
+       }
     // If session does not exist on server side, or IP address has changed, or session has expired, logout.
     if (empty($_SESSION['uid']) || ($GLOBALS['disablesessionprotection']==false && $_SESSION['ip']!=allIPs()) || time()>=$_SESSION['expires_on'])
     {
@@ -334,7 +344,9 @@ function isLoggedIn()
 }
 
 // Force logout.
-function logout() { if (isset($_SESSION)) { unset($_SESSION['uid']); unset($_SESSION['ip']); unset($_SESSION['username']); unset($_SESSION['privateonly']); }  }
+function logout() { if (isset($_SESSION)) { unset($_SESSION['uid']); unset($_SESSION['ip']); unset($_SESSION['username']); unset($_SESSION['privateonly']); }  
+setcookie('shaarli_staySignedIn', FALSE, 0, WEB_PATH);
+}
 
 
 // ------------------------------------------------------------------------------------------
@@ -396,6 +408,7 @@ if (isset($_POST['login']))
         // If user wants to keep the session cookie even after the browser closes:
         if (!empty($_POST['longlastingsession']))
         {
+                       setcookie('shaarli_staySignedIn', STAY_SIGNED_IN_TOKEN, time()+31536000, WEB_PATH);
             $_SESSION['longlastingsession']=31536000;  // (31536000 seconds = 1 year)
             $_SESSION['expires_on']=time()+$_SESSION['longlastingsession'];  // Set session expiration on server-side.
 
@@ -942,7 +955,7 @@ function showRSS()
         echo '<description><![CDATA['.nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description'])))).$descriptionlink.']]></description>'."\n</item>\n";
         $i++;
     }
-    echo '</channel></rss><!-- Cached version of '.pageUrl().' -->';
+    echo '</channel></rss><!-- Cached version of '.htmlspecialchars(pageUrl()).' -->';
 
     $cache->cache(ob_get_contents());
     ob_end_flush();
@@ -1027,7 +1040,7 @@ function showATOM()
     $feed.='<author><name>'.htmlspecialchars($pageaddr).'</name><uri>'.htmlspecialchars($pageaddr).'</uri></author>';
     $feed.='<id>'.htmlspecialchars($pageaddr).'</id>'."\n\n"; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
     $feed.=$entries;
-    $feed.='</feed><!-- Cached version of '.pageUrl().' -->';
+    $feed.='</feed><!-- Cached version of '.htmlspecialchars(pageUrl()).' -->';
     echo $feed;
 
     $cache->cache(ob_get_contents());
@@ -1104,7 +1117,7 @@ function showDailyRSS()
         echo '<description><![CDATA['.$html.']]></description>'."\n</item>\n\n";
 
     }
-    echo '</channel></rss><!-- Cached version of '.pageUrl().' -->';
+    echo '</channel></rss><!-- Cached version of '.htmlspecialchars(pageUrl()).' -->';
 
     $cache->cache(ob_get_contents());
     ob_end_flush();
@@ -1747,11 +1760,11 @@ function importFile()
         }
         $LINKSDB->savedb();
 
-        echo '<script language="JavaScript">alert("File '.$filename.' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>';
+        echo '<script language="JavaScript">alert("File '.json_encode($filename).' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>';
     }
     else
     {
-        echo '<script language="JavaScript">alert("File '.$filename.' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>';
+        echo '<script language="JavaScript">alert("File '.json_encode($filename).' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>';
     }
 }