<?
/*

    This file is part of Yet Another Nopaste.

    Foobar is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Foobar is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Foobar.  If not, see <http://www.gnu.org/licenses/>.

*/

function initCookies() {
    $expire = time()+60*60*24*30;
    if(isset($_POST["language"])) {
        setCookie("YANOPASTE_language", $_POST["language"], $expire);
    }
    if(isset($_POST["name"])) {
        setCookie("YANOPASTE_name", $_POST["name"], $expire);
    }
    if(isset($_POST["setpwd"])) {
        setCookie("YANOPASTE_setpwd", $_POST["setpwd"], $expire);
    }
}

function saveXML() {
    global $_YANOPASTE;
    // Creating result file
    $xmlFind    = array("&"    ,"<"    , ">"   , "\""    , "'");
    $xmlReplace = array("&amp;", "&lt;", "&gt;", "&quot;", "&apos;");
    // Creating filename
    $now = getdate();
    $id = generateId();
    $filename = generateFileName($id) . ".xml";
    $out = fopen($filename, "w");
    fwrite($out, "<?xml version=\"1.0\"?>\n");
    fwrite($out, "<yanopaste id=\"" . $id . "\"\n");
    fwrite($out, " name=\"".$_POST["name"]."\"\n");
    fwrite($out, " language=\"".$_POST["language"]."\"\n");
    fwrite($out, " setpwd=\"".(isset($_POST["setpwd"]) ? "true" : "false")."\"\n");
    fwrite($out, " pwd=\"".$_POST["pwd"]."\"\n");
    fwrite($out, " ga-enabled=\"".$_YANOPASTE["ga_enabled"]."\"\n");
    fwrite($out, " ga-id=\"".$_YANOPASTE["ga_id"]."\"\n");
    fwrite($out, " base-url=\"" . generateFileURL("") . "\">\n");
    fwrite($out, " <paste>\n");
    fwrite($out, "  <original>" . str_replace($xmlFind, $xmlReplace, stripslashes($_POST["content"])) . "</original>\n");
    fwrite($out, "  <transform engine=\"geshi\">" . str_replace($xmlFind, $xmlReplace, parseGeshi()) . "</transform>\n");
    fwrite($out, " </paste>\n");
    fwrite($out, "</yanopaste>");
    fclose($out);
    return generateFileURLFromId($id);
}
function parseGeshi() {
    // Creating geshi object
    $geshi = new GeSHi(stripslashes($_POST["content"]), $_POST["language"]);
    $geshi->enable_line_numbers(GESHI_FANCY_LINE_NUMBERS);
    //$geshi->enable_classes();
    $geshi->enable_strict_mode(true);
    return $geshi->parse_code();
}
function generateFileName($id) {
    global $_YANOPASTE;
    // ensuring the directory exist, otherwise trying to create it
    if (!file_exists($_YANOPASTE["repository"])) {
        mkdir($_YANOPASTE["repository"], 0755, true);
    }
    return $_YANOPASTE["repository"] . "/paste" . $id;
}

function generateId() {
   $now = getdate();
   return $now["year"]
            . str_pad($now["mon"], 2, "0", "STR_PAD_LEFT")
            . str_pad($now["mday"], 2, "0", "STR_PAD_LEFT")
            . str_pad($now["hours"], 2, "0", "STR_PAD_LEFT")
            . str_pad($now["minutes"], 2, "0", "STR_PAD_LEFT")
            . str_pad($now["seconds"], 2, "0", "STR_PAD_LEFT")
            . "_" . rand(10000,99999);
}

function generateFileURL($path) {
    return "http://" . $_SERVER["SERVER_NAME"] . substr($_SERVER["PHP_SELF"], 0, strrpos($_SERVER["PHP_SELF"], "/")) . "/" . $path;
}

function generateFileURLFromId($id) {
    return "http://" . $_SERVER["SERVER_NAME"] . substr($_SERVER["PHP_SELF"], 0, strrpos($_SERVER["PHP_SELF"], "/")) . "/index.php?id=" . $id;
}

function retentionTimeAsString() {
    global $_YANOPASTE;
    $hours = floor($_YANOPASTE["lifetime"] / 3600);
    $days = floor($hours / 24);
    $hours = $hours % 24;
    return $days . " day" . ($days > 1 ? "s " : " ") . $hours . " hour" . ($hours > 1 ? "s " : ""); 
}

function getHTMLHeader($extTitle, $rootPath) {
    global $_YANOPASTE;
    if ($_YANOPASTE["ga_enabled"] == "true") {
        $ga_include = "<script src=\"http://www.google-analytics.com/ga.js\" type=\"text/javascript\"></script>";
    } else {
        $ga_include = "";
    }
    return "<html>" .
           "    <head>" .
           "        <title>Yet Another Nopaste " . $extTitle . "</title>" .
           "        <link rel=\"stylesheet\" type=\"text/css\" href=\"" . $rootPath . "screen.css\" media=\"screen\"/>" .
           "        <script type=\"text/javascript\" src=\"" . $rootPath . "common.js\"></script>" .
           "        " . $ga_include .
           "    </head>" .
           "    <body onload=\"initPaste()\">" .
           "        <input type=\"hidden\" id=\"ga_enabled\" value=\"" . $_YANOPASTE["ga_enabled"] . "\"/>" .
           "        <input type=\"hidden\" id=\"ga_id\" value=\"" . $_YANOPASTE["ga_id"] . "\"/>" .
           "        <div id=\"header\" onclick=\"window.location.href='" . generateFileURL("") . "'\"></div>" .
           "        <div id=\"body\">";
}

function getHTMLFooter() {
    return "        </div>" .
           "        <div id=\"footer\">" .
           "            Yet Another Nopaste - version 1.2.0- GPL software - Sources available at " .
           "            <a href=\"http://sourceforge.net/projects/yanopaste\"><img id=\"sourceforge_logo\" src=\"http://sflogo.sourceforge.net/sflogo.php?group_id=237687&type=1\" alt=\"SourceForge.net Logo\" /></a>" .
           "            - <a href=\"http://yanopaste.sourceforge.net\">Demo</a>" .
           "            <br/> Copyright (C) 2008  <a href=\"http://www.jujunie.com\">Julien BETI</a>" .
           "        </div>" .
           "    </body>" .
           "</html>";
}

function cleanRepository() {
    $now = time();
    $path = "";
    global $_YANOPASTE;
    // Iterating over all files in the repository
    foreach (scandir($_YANOPASTE["repository"]) as $f) {
        $path = $_YANOPASTE["repository"] . "/" . $f;
        if (is_file($path)) {
            if ($now - filemtime($path) > $_YANOPASTE["lifetime"]) {
                unlink($path);
            } else {
                // File must be kept
            }
        } else {
            //nothing to do
        }
    }
}

function getDocument($id) {
    // Loading XML
    $xml = new DOMDocument;
    $xml->load(generateFileName($id) . ".xml");
    return $xml;
}

function checkAccess($xml) {
    $nodes=$xml->getElementsByTagName('yanopaste');
    $root = $nodes->item(0);
    // If not protected, access granted :)
    if($root->getAttribute("setpwd") == "false") {
        return true;
    } else {
        return $_POST["pwd"] == $root->getAttribute("pwd");
    }
}

function xslTransform($xml) {
    $xsl = new DOMDocument;
    $xsl->load('paste.xsl');
    
    // Configure the transformer
    $proc = new XSLTProcessor;
    $proc->importStyleSheet($xsl); // attach the xsl rules
    
    echo $proc->transformToXML($xml);
}
?>