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Add a simple txt sitemap #200

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Add a simple txt sitemap #200

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43 changes: 43 additions & 0 deletions index.php
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Original file line number Diff line number Diff line change
Expand Up @@ -2488,6 +2488,48 @@ function resizeImage($filepath)
return true;
}

// Sitemap (txt only)
function showSitemap()
{

// Cache system
$query = $_SERVER["QUERY_STRING"];
$cache = new pageCache(pageUrl(),startsWith($query,'do=sitemap') && !isLoggedIn());
$cached = $cache->cachedVersion(); if (!empty($cached)) { echo $cached; exit; }

// If cached was not found (or not usable), then read the database and build the response:
$LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in).

// Optionnaly filter the results:
$linksToDisplay=array();
if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']);
elseif (!empty($_GET['searchtags'])) $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags']));
else $linksToDisplay = $LINKSDB;
$nblinksToDisplay = 5000; // Number of links to display.
if (!empty($_GET['nb'])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
{
$nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max($_GET['nb']+0,1) ;
}

$pageaddr=htmlspecialchars(indexUrl());
$i=0;
$keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys().
while ($i<$nblinksToDisplay && $i<count($keys))
{
$link = $linksToDisplay[$keys[$i]];
$guid = $pageaddr.'?'.smallHash($link['linkdate']);
$rfc822date = linkdate2rfc822($link['linkdate']);
$absurl = htmlspecialchars($link['url']);
if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute
echo "$guid \n";
$i++;
}

$cache->cache(ob_get_contents());
ob_end_flush();
exit;
}

// Invalidate caches when the database is changed or the user logs out.
// (eg. tags cache).
function invalidateCaches()
Expand All @@ -2501,6 +2543,7 @@ function invalidateCaches()
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=atom')) { showATOM(); exit; }
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=dailyrss')) { showDailyRSS(); exit; }
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=daily')) { showDaily(); exit; }
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=sitemap')) { showSitemap(); exit; }
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'ws=')) { processWS(); exit; } // Webservices (for jQuery/jQueryUI)
if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE'];
renderPage();
Expand Down