<?php
/******************************************************************************
 * Copyright (c) 2013, 2014 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
*    IBM Corporation - initial implementation
****************************************************************************/

function PWD_check($PWD, $suf)
{
	debug ("&#160; &#160; <b>PWD = </b>$PWD; <b>suf = </b>$suf;<br/>&#160; &#160; &#160; is_dir? <b style='color:green'>" . is_dir($PWD) . "</b>; is_readable? <b style='color:green'>" . is_readable($PWD) . "</b>; is_writable? <b style='color:green'>" . is_writable($PWD) . "</b><br/>", 2);
	return(!is_dir($PWD) || !is_readable($PWD) ||($suf == "logs" && !is_writable($PWD)));
}

function getPWD($suf = "", $doDynCheck = true, $debug_echoPWD = 1) // set 0 to hide (for security purposes!)
{
	global $PR, $App;
	debug ("<br/>getPWD <b>PR = </b>$PR, <b>suf = </b>$suf</br>", 2);
	$PWDs = array();

	if($doDynCheck)
	{
		//dynamic assignments
		$PWD = $App->getDownloadBasePath() . "/$PR/" . $suf;
		$PWDs[] = $PWD;

		//second dynamic assignment
		if(PWD_check($PWD, $suf))
		{
			$PWD = $_SERVER["DOCUMENT_ROOT"] . "/$PR/" . $suf;
			$PWDs[] = $PWD;
		}

		if(!PWD_check($PWD, $suf))
		{
			debug("'$suf' ended up with first '$PWD' (is_readable: <b style='color:green'>" . is_readable($PWD) . "</b>, is_dir: <b style='color:green'>" . is_dir($PWD) . "</b>)");
			return $PWD;
		}
	}
	$PWD = "";

	//static assignments
	if(PWD_check($PWD, $suf))
	{
		$servers = array(
				"/buildbox(?:\.torolab\.ibm\.com)?/" => "/home/www-data/build",
				"/build\.eclipse\.org/" => "/opt/public/modeling/build",
				"/emf(?:\.torolab\.ibm\.com)?/" => "/home/www-data/build",
				"/(emft|modeling)(?:\.eclipse\.org)?/" => "/home/www-data/build",
				"/localhost/" => "/home/www-data/build",
				"/download1\.eclipse\.org/" => "/home/local/data/httpd/download.eclipse.org",
				"/fullmoon\.torolab\.ibm\.com/" => "/home/www");

		foreach(array_keys($servers) as $z)
		{
			$PWD = $servers[$z] . "/$PR/$suf";
			if(preg_match($z, $_SERVER["HTTP_HOST"]) && !PWD_check($PWD, $suf))
			{
				$PWDs[] = $PWD;
			}
		}
		foreach(array_keys($servers) as $z)
		{
			$PWD = $servers[$z] . "/$suf";
			if(preg_match($z, $_SERVER["HTTP_HOST"]) && !PWD_check($PWD, $suf))
			{
				$PWDs[] = $PWD;
			}
		}
	}
	$PWD = "";

	//try a default guess: /home/www, two options
	if(PWD_check($PWD, $suf))
	{
		$data = array(
				4 => array(
						"checkdir" => "/home/data/httpd/download.eclipse.org/",
						"tries" => array("/home/data/httpd/download.eclipse.org/$suf",
								"/home/data/httpd/download.eclipse.org/$PR/$suf",)
				),
				5 => array("checkdir" => "/home/data2/httpd/download.eclipse.org/",
						"tries" => array("/home/data2/httpd/download.eclipse.org/$suf",
								"/home/data2/httpd/download.eclipse.org/$PR/$suf",)
				),
				6 => array("checkdir" => "/home/local/data/httpd/download.eclipse.org/",
						"tries" => array($doDynCheck ? $App->getDownloadBasePath() . "/$PR/" . $suf : null,
								"/home/local/data/httpd/download.eclipse.org/$suf",
								"/home/local/data/httpd/download.eclipse.org/$PR/$suf",)
				),
				7 => array("checkdir" => "/var/www/",
						"tries" => array("/var/www/$PR/$suf",
								"/var/www/html/$PR/$suf",)
				)
		);

		foreach(array_keys($data) as $y)
		{
			$PWD = $data[$y]["checkdir"];
			if(is_dir($PWD) && is_readable($PWD))
			{
				foreach(array_keys($data[$y]["tries"]) as $z)
				{
					#debug("&#160; &#160; &#160; &#160; &#160; \$data[$y][\"tries\"][$z] = " . $data[$y]["tries"][$z],3);
					$PWD = $data[$y]["tries"][$z];
					if($PWD && !PWD_check($PWD, $suf))
					{
						$PWDs[] = $PWD;
						break 2;
				}
			}
		}
	}
}
$PWD = "/home/data2/httpd/download.eclipse.org/emf-query/emf-query/downloads/drops";

krsort($PWDs);
reset($PWDs);
	debug_r($PWDs, "<hr>PWDs: ", "<hr>", 2);
foreach($PWDs as $i => $PWD)
{
	debug(" &#160; &#160; $i : $PWD", 9);
	if(!PWD_check($PWD, $suf))
	{
		debug("'$suf' ended up with second '$PWD' (is_readable: <b style='color:green'>" . is_readable($PWD) . "</b>, is_dir: <b style='color:green'>" . is_dir($PWD) . "</b>)");
		return $PWD;
	}
}

debug("<!-- PWD not found! -->");
debug("'$suf' ended up with third '$PWD' (is_readable: <b style='color:green'>" . is_readable($PWD) . "</b>, is_dir: <b style='color:green'>" . is_dir($PWD) . "</b>)");
return $PWD;
}

function loadDirSimple($dir, $ext, $type) // 1D array, not 2D
{
	$stuff = array();

	if(is_dir($dir) && is_readable($dir))
	{
		$handle = opendir($dir);
		while(($file = readdir($handle)) !== false)
		{
			if(preg_match("/$ext$/", $file) && !preg_match("/^\.{1,2}$/", $file))
			{
				if(($type == "d" && is_dir("$dir/$file")) ||($type == "f" && is_file("$dir/$file")))
				{
					$stuff[] = $file;
				}
			}
		}
		closedir($handle);
	}
	else
	{
		global $hadLoadDirSimpleError;
		if(!$hadLoadDirSimpleError)
		{
			$issue =(!is_dir($dir) ? "NOT FOUND" :(!is_readable($dir) ? "NOT READABLE" : "PROBLEM"));
			print "<p>Directory ($dir) <b>$issue</b> on mirror: <b>" . $_SERVER["HTTP_HOST"] . "</b>!</p>";
			print "<p>Please report this error to <a href=\"mailto:webmaster@eclipse.org?Subject=Directory ($dir) $issue in scripts.php::loadDirSimple() on mirror " . $_SERVER["HTTP_HOST"] . "\">webmaster@eclipse.org</a>, or make directory readable.</p>";
			$hadLoadDirSimpleError = 1;
		}
	}

	return $stuff;
}

function wArr($arr)
{
	print "<pre>\n";
	print_r($arr);
	print "</pre>\n";
}

function w($s, $br = "") // shortcut for echo() with second parameter: "add break+newline"
{
	if(stristr($br, "n"))
	{
		$br = "\n";
	}
	else
	if($br)
	{
		$br = "<br/>\n";
	}

	print $s . $br;
}

function getNews($lim, $key, $xml = "", $linkOnly = false, $dateFmtPre = "", $dateFmtSuf = "") // allow overriding in case the file's not in /$PR/
{
	global $PR;

	$xml =($xml ? $xml : file_get_contents($_SERVER["DOCUMENT_ROOT"] . "/$PR/" . "news/news.xml"));
	$news_regex = "%
			<news\ date=\"([^\"]+)\"\ showOn=\"([^\"]+)\">.*\\n
			(.+)\\n
			</news>.*\\n
			%mx";

	if(!$xml)
	{
		print "<p><b><i>Error</i></b> Couldn't find any news!</p>\n";
	}

	$regs = null;
	preg_match_all($news_regex, $xml, $regs);
	$i_real = 0;
	foreach(array_keys($regs[0]) as $i)
	{
		if($i_real >= $lim && $lim > 0)
		{
			return;
		}

		$showOn = explode(",", $regs[2][$i]);
		if($key == "all" || in_array($key, $showOn))
		{
			$i_real++;
			print "<p>\n";
			if(strtotime($regs[1][$i]) > strtotime("-3 weeks"))
			{
				if(preg_match("/update/i", $regs[3][$i]))
				{
					print '<img src="/modeling/images/updated.gif" alt="Updated!"/> ';
				}
				else
				{
					print '<img src="/modeling/images/new.gif" alt="New!"/> ';
				}

			}
			if(!$dateFmtPre && !$dateFmtSuf)
			{
				$app =(date("Y", strtotime($regs[1][$i])) < date("Y") ? ", Y" : "");
				print date("M" . '\&\n\b\s\p\;jS' . $app, strtotime($regs[1][$i])) . ' - ' . "\n";
			}
			else
			if($dateFmtPre)
			{
				print date($dateFmtPre, strtotime($regs[1][$i]));
			}
			if($linkOnly)
			{
				$link = preg_replace("#.+(<a .+</a>).+#", "$1", $regs[3][$i]);
			}
			else
			{
				$link = $regs[3][$i];
			}
			print $link;
			if($dateFmtSuf)
			{
				print date($dateFmtSuf, strtotime($regs[1][$i]));
			}
			print "</p>\n";
		}
	}
}

/* TODO: remove this when we upgrade php to >= 4.3.0 everywhere */
if(!function_exists("file_get_contents"))
{
	function file_get_contents($file)
	{
		return(is_file($file) ? join("", file($file)) : "");
	}
}

function getProjectArray($projects, $extraprojects, $nodownloads, $PR) //only the projects we have the files for
{
	$pwd = getPWD();

	$projs = loadDirSimple($pwd, ".*", "d"); // locally available
	foreach($nodownloads as $z)
	{
		/* php <4.2.0 returns NULL on array_search() failure, but php >=4.2.0 returns FALSE on array_search() failure, so don't check that */
		if(is_numeric($s = array_search($z, $projs)))
		{
			unset($projs[$s]);
		}
	}

	return array_intersect(array_merge($projects, $extraprojects), $projs);
}

function doSelectProject($projectArray, $proj, $nomenclature, $style = "homeitem3col", $showAll = "", $showMax = "", $sortBy = "")
{
	global $incubating;
	$vars = array("showAll", "showMax", "sortBy", "hlbuild");
	$tmp = preg_replace("#^/#", "", $proj);

	$hlbuild =(isset($_GET["hlbuild"]) && preg_match("/^[IMNRS]\d{12}$/", $_GET["hlbuild"]) ? $_GET["hlbuild"] : "");

	$out = "<div class=\"" .($style == "sideitem" ? "sideitem" : "homeitem3col") . "\">\n";
	$tag =($style == "sideitem" ? "h6" : "h3");
	$out .= "<$tag>";
	if($style != "sideitem" && isset($incubating) && in_array($tmp, $incubating))
	{
		$out .= '<a href="http://www.eclipse.org/projects/what-is-incubation.php"><img style="float:right"
				src="http://www.eclipse.org/modeling/images/egg-icon.png" alt="Validation (Incubation) Phase"
				border="0" /></a>';
	}
	$out .= "$nomenclature selection</$tag>\n";
	$out .= "<form action=\"" . $_SERVER["SCRIPT_NAME"] . "\" method=\"get\" id=\"subproject_form\">\n";
	$out .= "<p>\n";
	$out .= "<label for=\"project\">$nomenclature: </label>\n";

	$out .= "<select id=\"project\" name=\"project\" onchange=\"javascript:document.getElementById('subproject_form').submit()\">\n";
	foreach($projectArray as $k => $v)
	{
		$out .= "<option value=\"$v\">$k</option>\n";
	}
	$out .= "</select>\n";
	foreach($vars as $z)
	{
		if($$z !== "")
		{
			$out .= "<input type=\"hidden\" name=\"$z\" value=\"" . $$z . "\"/>\n";
		}
	}
	$out = preg_replace("#<option (value=\"$tmp\")>#", "<option selected=\"selected\" $1>", $out);
	$out .= "<input type=\"submit\" value=\"Go!\"/>\n";
	$out .= "</p>\n";
	$out .= "</form>\n";
	$out .= "</div>\n";

	return $out;
}

function project_name($proj)
{
	global $projects, $PR;

	if (isset($projects))
	{
		$tmp = array_flip($projects);
		$proj = preg_replace("#^/#", "", $proj);
		return isset($tmp[$proj]) ? $tmp[$proj] :(isset($tmp[$PR]) ? $tmp[$PR] : "");
	}
	else
	{
		return strtoupper($proj);
	}

}

function debug($str, $level = 0)
{
	global $debug;

	if($debug > $level)
	{
		print "<div class=\"debug\">$str</div>\n";
	}
}

function debug_r($str, $header = "", $footer = "", $level = 0, $isPreformatted = false)
{
	global $debug;

	if($debug > $level)
	{
		if($header)
		{
			print "<div class=\"debug\">";
			print $header;
			print "</div>\n";
		}
		print "<div class=\"debug\">";
		print $isPreformatted ? "<pre><small>" : "";
		print_r($str);
		print $isPreformatted ? "</small></pre>" : "";
		print "</div>\n";
		if($footer)
		{
			print "<div class=\"debug\">";
			print $footer;
			print "</div>\n";
		}
	}
}

function domainSuffix($domain)
{
	return preg_replace("/.*([^\.]+\.[^\.]+)$/", "$1", $domain);
}

/* convert a wiki category page into a series of <li> items */
function wikiCategoryToListItems($category)
{
	$wiki_contents = "";

	// insert wiki content
	$host = "wiki.eclipse.org";
	$url = "/Category:" . $category;

	$header = "Host: $host\r\n";
	$header .= "User-Agent: PHP Script\r\n";
	$header .= "Connection: close\r\n\r\n";

	$fp = fsockopen($host, 80, $errno, $errstr, 30);
	if(!$fp)
	{
		$out .= "<li><i>$errstr ($errno)</i></li>\n";
	}
	else
	{
		fputs($fp, "GET $url HTTP/1.1\r\n");
		fputs($fp, $header);
		while(!feof($fp))
		{
			$wiki_contents .= fgets($fp, 128);
		}
		fclose($fp);
	}

	$out = "";
	if($wiki_contents)
	{
		$m = null;
		if(preg_match("#<div id=\"mw-pages\">(.+)</div>[ \t\n]*<div class=\"printfooter\">#s", $wiki_contents, $m))
		{
			$links = null;
			if(preg_match_all("#<a href=\"([^\"]+)\" title=\"([^\"]+)\">([^<]+)</a>#", $m[1], $links, PREG_SET_ORDER))
			{
				foreach($links as $z)
				{
					$out .= "<li><a href=\"http://wiki.eclipse.org/$z[1]\" title=\"$z[2]\">$z[3]</a></li>\n";
				}
			}
		}
	}
	return $out;
}

function getProjectFromPath($PR)
{
	$m = null;
	return preg_match("#/" . $PR . "/([^/]+)/build/.+#", $_SERVER["PHP_SELF"], $m) ? $m[1] :(preg_match("#/(" .
			$PR . ")/build/.+#", $_SERVER["PHP_SELF"], $m) ? $m[1] : "");
}

function cvsminus($rev)
{
	if(preg_match("/^1\.1$/", $rev)) // "1.10" == "1.1" returns true, curiously enough
	{
		return $rev;
	}
	else
	{
		if(preg_match("/\.1$/", $rev))
		{
			return preg_replace("/^(\d+\.\d+)\..+$/", "$1", $rev);
		}
		else
		{
			return preg_replace("/^(.+\.)(\d+)$/e", "\"$1\" . ($2 - 1);", $rev);
		}
	}
}

function changesetForm($bugid = "")
{
	?>
<form action="http://www.eclipse.org/modeling/emf/news/changeset.php"
	method="get" target="_blank">
	<p>
		<label for="bugid">Bug ID: </label><input size="7" type="text"
			name="bugid" id="bugid" value="<?php print $bugid; ?>" /> <input
			type="submit" value="Go!" />
	</p>
	<p>
		<a href="javascript:void(0)"
			onclick="javascript:this.style.display = 'none'; document.getElementById('changesetinfo').style.display = 'block';">How
			does this work?</a>
	</p>
	<div id="changesetinfo" style="display: none">
		<p>Use this form to generate a bash shell script which can be run
			against the projects and plugins in your workspace to produce a patch
			file showing all changes for a given bug.</p>
		<p>
			The requested bug must be indexed in the <a
				href="http://www.eclipse.org/modeling/searchcvs.php?q=190525">Search
				CVS</a> database. Download the generated script for more
			information. If the script is empty, then the bug was not found.
		</p>
	</div>
</form>
<?php

}

function tokenize($in) # split a shell command into flag/value pairs
{
	/* 17722 ? Ss 0:00 /bin/bash /home/www-data/build/modeling/scripts/start.sh -proj emf
	 * -sub emf -version 2.1.0 -branch HEAD
	* -URL http://download.eclipse.org/eclipse/downloads/drops/S-3.4M7-200805020100/eclipse-SDK-3.4M7-linux-gtk.tar.gz
	* -URL http://download.eclipse.org/modeling/emf/emf/downloads/drops/2.4.0/S200805052017/emf-sdo-xsd-SDK-2.4.0M7.zip
	* -URL http://download.eclipse.org/modeling/mdt/uml2/downloads/drops/2.2.0/S200805052208/mdt-uml2-SDK-2.2.0M7.zip
	* -URL http://download.eclipse.org/tools/orbit/downloads/drops/S20080427194908/orbitBundles-S20080427194908.map
	* -URL http://emft.eclipse.org/modeling/mdt/ocl/downloads/drops/1.2.0/S200805061053/mdt-ocl-SDK-1.2.0M7.zip
	* -URL http://emft.eclipse.org/modeling/emf/query/downloads/drops/1.2.0/S200805061125/emf-query-SDK-1.2.0M7.zip
	* -URL http://download.eclipse.org/modeling/emf/transaction/downloads/drops/1.2.0/S200805061205/emf-transaction-SDK-1.2.0M7.zip
	* -URL http://emft.eclipse.org/modeling/emf/validation/downloads/drops/1.2.0/S200805061125/emf-validation-SDK-1.2.0M7.zip
	* -URL http://download.eclipse.org/tools/gef/downloads/drops/3.4.0/S200804291800/GEF-ALL-3.4.0M7.zip -antTarget run
	* -mapfileRule use-false -buildType I -javaHome /opt/sun-java2-5.0 -downloadsDir /home/www-data/build/downloads
	* -buildDir /home/www-data/build/modeling/emf/emf/downloads/drops/2.1.0/I200805072353
	* -email emf-releng@eclipse.org,nickboldt@gmail.com,max.feldman@borland.com,anthonyh@ca.ibm.com
	* -basebuilderBranch RC1_34
	*/
	$bits = explode(" -", $in);
	$pairs["cmd"] = $bits[0];
	for($i = 1; $i < sizeof($bits); $i++)
	{
		$pair = explode(" ", $bits[$i]);
		if(isset($pair[0]) && isset($pair[1]))
		{
			$pairs[$pair[0]] = $pair[1];
		}
		else
		if(isset($pair[0]))
		{
			$pairs[$pair[0]] = "";
		}
	}
	return $pairs;
}

function addGoogleAnalyticsTrackingCodeToHeader($UA = "UA-2566337-8")
{
	# http://wiki.eclipse.org/Using_Phoenix#Google_Analytics
	global $App;
	$App->SetGoogleAnalyticsTrackingCode("$UA");
}

function getDownloadScript()
{
	global $PR;
	if(strstr($PR, "/") !== false)
	{
		list($topProj, $parentProj) = explode("/", $PR); # modeling, emf
	}
	else
	{
		list($topProj, $parentProj) = array("NONE", $PR); # NONE, gef
	}

	# if this is a Modeling page, use /modeling/download.php;
	# if this is a GEF page, use /gef/download.php
	# if /foo/download.php doesn't exist, revert to /downloads/download.php
	$dlScriptFile = $_SERVER["DOCUMENT_ROOT"] . "/" .($topProj == "NONE" ? $parentProj : $topProj) . "/download.php";
	#print "[$dlScriptFile =? " . is_file($dlScriptFile) . "]<br>";
	if(is_file($dlScriptFile))
	{
		$downloadScript = "http://www.eclipse.org/" .($topProj == "NONE" ? $parentProj : $topProj) . "/download.php?file=";
	}
	else
	{
		$downloadScript = "http://www.eclipse.org/downloads/download.php?file=";
	}
	return $downloadScript;
}

/* thanks to http://www.php.net/manual/en/function.filesize.php#80995 */
function dirsize($path)
{
	$dirsize = exec("du -s $path");
	if($dirsize)
	{
		$dirsize = explode(" ", $dirsize);
		return($dirsize[0] - 0) * 1024;
	}
	if(!is_dir($path))
	{
		return filesize($path);
	}
	$size = 0;
	foreach(scandir($path) as $file)
	{
		if($file != '.' && $file != '..')
		{
			$size += dirsize($path . '/' . $file);
		}
	}
	return $size;
}

function pretty_size($bytes)
{
	$sufs = array("B", "K", "M", "G", "T", "P"); //we shouldn't be larger than 999.9 petabytes any time soon, hopefully
	$suf = 0;

	while($bytes >= 1000)
	{
		$bytes /= 1024;
		$suf++;
	}

	return sprintf("%3.1f%s", $bytes, $sufs[$suf]);
}

?>