Knah-Tsaeb/MyShaarli
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HTTP: move server URL functions to HttpUtils.php

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Relates to #333

Modifications:
 - refactor server URL utility functions
 - do not access global `$_SERVER` variables
 - add test coverage
 - improve readability
 - apply coding conventions

Signed-off-by: VirtualTam <virtualtam@flibidi.net>
This commit is contained in:
VirtualTam 2015-09-06 21:31:37 +02:00
parent 7b114771d3
commit 482d67bd52
6 changed files with 388 additions and 53 deletions
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80
application/HttpUtils.php
View file

@ -50,3 +50,83 @@ function get_http_url($url, $timeout = 30, $maxBytes = 4194304)
return array(get_headers($url, 1), $content);
}
/**
* Returns the server's base URL: scheme://domain.tld[:port]
*
* @param array $server the $_SERVER array
*
* @return string the server's base URL
*
* @see http://www.ietf.org/rfc/rfc7239.txt
* @see http://www.ietf.org/rfc/rfc6648.txt
* @see http://stackoverflow.com/a/3561399
* @see http://stackoverflow.com/q/452375
*/
function server_url($server)
{
$scheme = 'http';
$port = '';
// Shaarli is served behind a proxy
if (isset($server['HTTP_X_FORWARDED_PROTO'])) {
// Keep forwarded scheme
$scheme = $server['HTTP_X_FORWARDED_PROTO'];
if (isset($server['HTTP_X_FORWARDED_PORT'])) {
// Keep forwarded port
$port = ':'.$server['HTTP_X_FORWARDED_PORT'];
}
return $scheme.'://'.$server['SERVER_NAME'].$port;
}
// SSL detection
if ((! empty($server['HTTPS']) && strtolower($server['HTTPS']) == 'on')
|| (isset($server['SERVER_PORT']) && $server['SERVER_PORT'] == '443')) {
$scheme = 'https';
}
// Do not append standard port values
if (($scheme == 'http' && $server['SERVER_PORT'] != '80')
|| ($scheme == 'https' && $server['SERVER_PORT'] != '443')) {
$port = ':'.$server['SERVER_PORT'];
}
return $scheme.'://'.$server['SERVER_NAME'].$port;
}
/**
* Returns the absolute URL of the current script, without the query
*
* If the resource is "index.php", then it is removed (for better-looking URLs)
*
* @param array $server the $_SERVER array
*
* @return string the absolute URL of the current script, without the query
*/
function index_url($server)
{
$scriptname = $server['SCRIPT_NAME'];
if (endswith($scriptname, 'index.php')) {
$scriptname = substr($scriptname, 0, -9);
}
return server_url($server) . $scriptname;
}
/**
* Returns the absolute URL of the current script, with the query
*
* If the resource is "index.php", then it is removed (for better-looking URLs)
*
* @param array $server the $_SERVER array
*
* @return string the absolute URL of the current script, with the query
*/
function page_url($server)
{
if (! empty($server['QUERY_STRING'])) {
return index_url($server).'?'.$server['QUERY_STRING'];
}
return index_url($server);
}

78
index.php
View file

@ -131,7 +131,7 @@ function stripslashes_deep($value) { $value = is_array($value) ? array_map('stri
if (!is_writable(realpath(dirname(__FILE__)))) die('<pre>ERROR: Shaarli does not have the right to write in its own directory.</pre>');
// Handling of old config file which do not have the new parameters.
if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.escape(indexUrl());
if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.escape(index_url($_SERVER));
if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get();
if (empty($GLOBALS['redirector'])) $GLOBALS['redirector']='';
if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false;
@ -277,8 +277,8 @@ function pubsubhub()
{
$p = new Publisher($GLOBALS['config']['PUBSUBHUB_URL']);
$topic_url = array (
indexUrl().'?do=atom',
indexUrl().'?do=rss'
index_url($_SERVER).'?do=atom',
index_url($_SERVER).'?do=rss'
);
$p->publish_update($topic_url);
}
@ -458,34 +458,6 @@ function ban_canLogin()
// ------------------------------------------------------------------------------------------
// Misc utility functions:
// Returns the server URL (including port and http/https), without path.
// e.g. "http://myserver.com:8080"
// You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
function serverUrl()
{
$https = (!empty($_SERVER['HTTPS']) && (strtolower($_SERVER['HTTPS'])=='on')) || $_SERVER["SERVER_PORT"]=='443' || (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https'); // HTTPS detection.
$serverport = ($_SERVER["SERVER_PORT"]=='80' || ($https && $_SERVER["SERVER_PORT"]=='443') ? '' : ':'.$_SERVER["SERVER_PORT"]);
return 'http'.($https?'s':'').'://'.$_SERVER['SERVER_NAME'].$serverport;
}
// Returns the absolute URL of current script, without the query.
// (e.g. http://sebsauvage.net/links/)
function indexUrl()
{
$scriptname = $_SERVER["SCRIPT_NAME"];
// If the script is named 'index.php', we remove it (for better looking URLs,
// e.g. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde)
if (endswith($scriptname,'index.php')) $scriptname = substr($scriptname,0,strlen($scriptname)-9);
return serverUrl() . $scriptname;
}
// Returns the absolute URL of current script, WITH the query.
// (e.g. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
function pageUrl()
{
return indexUrl().(!empty($_SERVER["QUERY_STRING"]) ? '?'.$_SERVER["QUERY_STRING"] : '');
}
// Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
function return_bytes($val)
{
@ -591,14 +563,14 @@ private function initialize()
{
$this->tpl = new RainTPL;
$this->tpl->assign('newversion',escape(checkUpdate()));
$this->tpl->assign('feedurl',escape(indexUrl()));
$this->tpl->assign('feedurl',escape(index_url($_SERVER)));
$searchcrits=''; // Search criteria
if (!empty($_GET['searchtags'])) $searchcrits.='&searchtags='.urlencode($_GET['searchtags']);
elseif (!empty($_GET['searchterm'])) $searchcrits.='&searchterm='.urlencode($_GET['searchterm']);
$this->tpl->assign('searchcrits',$searchcrits);
$this->tpl->assign('source',indexUrl());
$this->tpl->assign('source',index_url($_SERVER));
$this->tpl->assign('version',shaarli_version);
$this->tpl->assign('scripturl',indexUrl());
$this->tpl->assign('scripturl',index_url($_SERVER));
$this->tpl->assign('pagetitle','Shaarli');
$this->tpl->assign('privateonly',!empty($_SESSION['privateonly'])); // Show only private links?
if (!empty($GLOBALS['title'])) $this->tpl->assign('pagetitle',$GLOBALS['title']);
@ -639,7 +611,7 @@ function showRSS()
$query = $_SERVER["QUERY_STRING"];
$cache = new CachedPage(
$GLOBALS['config']['PAGECACHE'],
pageUrl(),
page_url($_SERVER),
startsWith($query,'do=rss') && !isLoggedIn()
);
$cached = $cache->cachedVersion();
@ -668,7 +640,7 @@ function showRSS()
$nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max($_GET['nb']+0,1) ;
}
$pageaddr=escape(indexUrl());
$pageaddr=escape(index_url($_SERVER));
echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">';
echo '<channel><title>'.$GLOBALS['title'].'</title><link>'.$pageaddr.'</link>';
echo '<description>Shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\n\n";
@ -706,7 +678,7 @@ function showRSS()
echo '<description><![CDATA['.nl2br(keepMultipleSpaces(text2clickable($link['description']))).$descriptionlink.']]></description>'."\n</item>\n";
$i++;
}
echo '</channel></rss><!-- Cached version of '.escape(pageUrl()).' -->';
echo '</channel></rss><!-- Cached version of '.escape(page_url($_SERVER)).' -->';
$cache->cache(ob_get_contents());
ob_end_flush();
@ -727,7 +699,7 @@ function showATOM()
$query = $_SERVER["QUERY_STRING"];
$cache = new CachedPage(
$GLOBALS['config']['PAGECACHE'],
pageUrl(),
page_url($_SERVER),
startsWith($query,'do=atom') && !isLoggedIn()
);
$cached = $cache->cachedVersion();
@ -756,7 +728,7 @@ function showATOM()
$nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max($_GET['nb']+0,1) ;
}
$pageaddr=escape(indexUrl());
$pageaddr=escape(index_url($_SERVER));
$latestDate = '';
$entries='';
$i=0;
@ -794,7 +766,7 @@ function showATOM()
$feed='<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">';
$feed.='<title>'.$GLOBALS['title'].'</title>';
if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $feed.='<updated>'.escape($latestDate).'</updated>';
$feed.='<link rel="self" href="'.escape(serverUrl().$_SERVER["REQUEST_URI"]).'" />';
$feed.='<link rel="self" href="'.escape(server_url($_SERVER).$_SERVER["REQUEST_URI"]).'" />';
if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
{
$feed.='<!-- PubSubHubbub Discovery -->';
@ -804,7 +776,7 @@ function showATOM()
$feed.='<author><name>'.$pageaddr.'</name><uri>'.$pageaddr.'</uri></author>';
$feed.='<id>'.$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 '.escape(pageUrl()).' -->';
$feed.='</feed><!-- Cached version of '.escape(page_url($_SERVER)).' -->';
echo $feed;
$cache->cache(ob_get_contents());
@ -821,7 +793,7 @@ function showDailyRSS() {
$query = $_SERVER["QUERY_STRING"];
$cache = new CachedPage(
$GLOBALS['config']['PAGECACHE'],
pageUrl(),
page_url($_SERVER),
startsWith($query,'do=dailyrss') && !isLoggedIn()
);
$cached = $cache->cachedVersion();
@ -866,7 +838,7 @@ function showDailyRSS() {
// Build the RSS feed.
header('Content-Type: application/rss+xml; charset=utf-8');
$pageaddr = escape(indexUrl());
$pageaddr = escape(index_url($_SERVER));
echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">';
echo '<channel>';
echo '<title>Daily - '. $GLOBALS['title'] . '</title>';
@ -879,7 +851,7 @@ function showDailyRSS() {
foreach ($days as $day => $linkdates) {
$daydate = linkdate2timestamp($day.'_000000'); // Full text date
$rfc822date = linkdate2rfc822($day.'_000000');
$absurl = escape(indexUrl().'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page.
$absurl = escape(index_url($_SERVER).'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page.
// Build the HTML body of this RSS entry.
$html = '';
@ -893,7 +865,7 @@ function showDailyRSS() {
$l['thumbnail'] = thumbnail($l['url']);
$l['timestamp'] = linkdate2timestamp($l['linkdate']);
if (startsWith($l['url'], '?')) {
$l['url'] = indexUrl() . $l['url']; // make permalink URL absolute
$l['url'] = index_url($_SERVER) . $l['url']; // make permalink URL absolute
}
$links[$linkdate] = $l;
}
@ -909,7 +881,7 @@ function showDailyRSS() {
echo $html . PHP_EOL;
}
echo '</channel></rss><!-- Cached version of '. escape(pageUrl()) .' -->';
echo '</channel></rss><!-- Cached version of '. escape(page_url($_SERVER)) .' -->';
$cache->cache(ob_get_contents());
ob_end_flush();
@ -1201,7 +1173,7 @@ function renderPage()
{
$PAGE = new pageBuilder;
$PAGE->assign('linkcount',count($LINKSDB));
$PAGE->assign('pageabsaddr',indexUrl());
$PAGE->assign('pageabsaddr',index_url($_SERVER));
$PAGE->renderPage('tools');
exit;
}
@ -1767,7 +1739,7 @@ function buildLinkList($PAGE,$LINKSDB)
if ($link["url"][0] === '?' && // Check for both signs of a note: starting with ? and 7 chars long. I doubt that you'll post any links that look like this.
strlen($link["url"]) === 7) {
$link["url"] = indexUrl() . $link["url"];
$link["url"] = index_url($_SERVER) . $link["url"];
}
$linkDisp[$keys[$i]] = $link;
@ -1902,7 +1874,7 @@ function computeThumbnail($url,$href=false)
if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL.
}
$sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
return array('src'=>indexUrl().'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
}
@ -1913,7 +1885,7 @@ function computeThumbnail($url,$href=false)
if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
{
$sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
return array('src'=>indexUrl().'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
}
return array(); // No thumbnail.
@ -1999,11 +1971,11 @@ function install()
if (!isset($_SESSION['session_tested']))
{ // Step 1 : Try to store data in session and reload page.
$_SESSION['session_tested'] = 'Working'; // Try to set a variable in session.
header('Location: '.indexUrl().'?test_session'); // Redirect to check stored data.
header('Location: '.index_url($_SERVER).'?test_session'); // Redirect to check stored data.
}
if (isset($_GET['test_session']))
{ // Step 3: Sessions are OK. Remove test parameter from URL.
header('Location: '.indexUrl());
header('Location: '.index_url($_SERVER));
}
@ -2020,7 +1992,7 @@ function install()
$GLOBALS['login'] = $_POST['setlogin'];
$GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless.
$GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']);
$GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.escape(indexUrl()) : $_POST['title'] );
$GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.escape(index_url($_SERVER)) : $_POST['title'] );
$GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']);
try {
writeConfig($GLOBALS, isLoggedIn());

0
tests/HttpUtilsTest.php → tests/HttpUtils/GetHttpUrlTest.php
View file

72
tests/HttpUtils/IndexUrlTest.php Normal file
View file

@ -0,0 +1,72 @@
<?php
/**
* HttpUtils' tests
*/
require_once 'application/HttpUtils.php';
/**
* Unitary tests for index_url()
*/
class IndexUrlTest extends PHPUnit_Framework_TestCase
{
/**
* If on the main page, remove "index.php" from the URL resource
*/
public function testRemoveIndex()
{
$this->assertEquals(
'http://host.tld/',
index_url(
array(
'HTTPS' => 'Off',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '80',
'SCRIPT_NAME' => '/index.php'
)
)
);
$this->assertEquals(
'http://host.tld/admin/',
index_url(
array(
'HTTPS' => 'Off',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '80',
'SCRIPT_NAME' => '/admin/index.php'
)
)
);
}
/**
* The resource is != "index.php"
*/
public function testOtherResource()
{
$this->assertEquals(
'http://host.tld/page.php',
page_url(
array(
'HTTPS' => 'Off',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '80',
'SCRIPT_NAME' => '/page.php'
)
)
);
$this->assertEquals(
'http://host.tld/admin/page.php',
page_url(
array(
'HTTPS' => 'Off',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '80',
'SCRIPT_NAME' => '/admin/page.php'
)
)
);
}
}

76
tests/HttpUtils/PageUrlTest.php Normal file
View file

@ -0,0 +1,76 @@
<?php
/**
* HttpUtils' tests
*/
require_once 'application/HttpUtils.php';
/**
* Unitary tests for page_url()
*/
class PageUrlTest extends PHPUnit_Framework_TestCase
{
/**
* If on the main page, remove "index.php" from the URL resource
*/
public function testRemoveIndex()
{
$this->assertEquals(
'http://host.tld/?p1=v1&p2=v2',
page_url(
array(
'HTTPS' => 'Off',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '80',
'SCRIPT_NAME' => '/index.php',
'QUERY_STRING' => 'p1=v1&p2=v2'
)
)
);
$this->assertEquals(
'http://host.tld/admin/?action=edit_tag',
page_url(
array(
'HTTPS' => 'Off',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '80',
'SCRIPT_NAME' => '/admin/index.php',
'QUERY_STRING' => 'action=edit_tag'
)
)
);
}
/**
* The resource is != "index.php"
*/
public function testOtherResource()
{
$this->assertEquals(
'http://host.tld/page.php?p1=v1&p2=v2',
page_url(
array(
'HTTPS' => 'Off',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '80',
'SCRIPT_NAME' => '/page.php',
'QUERY_STRING' => 'p1=v1&p2=v2'
)
)
);
$this->assertEquals(
'http://host.tld/admin/page.php?action=edit_tag',
page_url(
array(
'HTTPS' => 'Off',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '80',
'SCRIPT_NAME' => '/admin/page.php',
'QUERY_STRING' => 'action=edit_tag'
)
)
);
}
}

135
tests/HttpUtils/ServerUrlTest.php Normal file
View file

@ -0,0 +1,135 @@
<?php
/**
* HttpUtils' tests
*/
require_once 'application/HttpUtils.php';
/**
* Unitary tests for server_url()
*/
class ServerUrlTest extends PHPUnit_Framework_TestCase
{
/**
* Detect if the server uses SSL
*/
public function testHttpsScheme()
{
$this->assertEquals(
'https://host.tld',
server_url(
array(
'HTTPS' => 'ON',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '443'
)
)
);
$this->assertEquals(
'https://host.tld:8080',
server_url(
array(
'HTTPS' => 'ON',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '8080'
)
)
);
}
/**
* Detect a Proxy with SSL enabled
*/
public function testHttpsProxyForward()
{
$this->assertEquals(
'https://host.tld:8080',
server_url(
array(
'HTTPS' => 'Off',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '80',
'HTTP_X_FORWARDED_PROTO' => 'https',
'HTTP_X_FORWARDED_PORT' => '8080'
)
)
);
$this->assertEquals(
'https://host.tld',
server_url(
array(
'HTTPS' => 'Off',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '80',
'HTTP_X_FORWARDED_PROTO' => 'https'
)
)
);
}
/**
* Detect if the server uses a specific port (!= 80)
*/
public function testPort()
{
// HTTP
$this->assertEquals(
'http://host.tld:8080',
server_url(
array(
'HTTPS' => 'OFF',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '8080'
)
)
);
// HTTPS
$this->assertEquals(
'https://host.tld:8080',
server_url(
array(
'HTTPS' => 'ON',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '8080'
)
)
);
}
/**
* HTTP server on port 80
*/
public function testStandardHttpPort()
{
$this->assertEquals(
'http://host.tld',
server_url(
array(
'HTTPS' => 'OFF',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '80'
)
)
);
}
/**
* HTTPS server on port 443
*/
public function testStandardHttpsPort()
{
$this->assertEquals(
'https://host.tld',
server_url(
array(
'HTTPS' => 'ON',
'SERVER_NAME' => 'host.tld',
'SERVER_PORT' => '443'
)
)
);
}
}