From 16aacada0f64240b7ec35026f0e207b7d0fd37df Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Fri, 27 Jun 2014 21:15:35 +0200
Subject: New SysConfig module for adding a logo

---
 inc/util.inc.php | 99 ++++++++++----------------------------------------------
 1 file changed, 17 insertions(+), 82 deletions(-)

(limited to 'inc/util.inc.php')

diff --git a/inc/util.inc.php b/inc/util.inc.php
index ea28b4fa..45a6b684 100644
--- a/inc/util.inc.php
+++ b/inc/util.inc.php
@@ -78,88 +78,6 @@ class Util
 		return nl2br($string);
 	}
 
-	/**
-	 * Common initialization for download and downloadToFile
-	 * Return file handle to header file
-	 */
-	private static function initCurl($url, $timeout, &$head)
-	{
-		$ch = curl_init();
-		if ($ch === false)
-			Util::traceError('Could not initialize cURL');
-		curl_setopt($ch, CURLOPT_URL, $url);
-		curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, ceil($timeout / 2));
-		curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
-		curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
-		curl_setopt($ch, CURLOPT_AUTOREFERER, true);
-		curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
-		curl_setopt($ch, CURLOPT_MAXREDIRS, 6);
-		$tmpfile = '/tmp/' . mt_rand() . '-' . time();
-		$head = fopen($tmpfile, 'w+b');
-		if ($head === false)
-			Util::traceError("Could not open temporary head file $tmpfile for writing.");
-		curl_setopt($ch, CURLOPT_WRITEHEADER, $head);
-		return $ch;
-	}
-
-	/**
-	 * Read 10kb from the given file handle, seek to 0 first,
-	 * close the file after reading. Returns data read
-	 */
-	private static function getContents($fh)
-	{
-		fseek($fh, 0, SEEK_SET);
-		$data = fread($fh, 10000);
-		fclose($fh);
-		return $data;
-	}
-
-	/**
-	 * Download file, obey given timeout in seconds
-	 * Return data on success, false on failure
-	 */
-	public static function download($url, $timeout, &$code)
-	{
-		$ch = self::initCurl($url, $timeout, $head);
-		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
-		$data = curl_exec($ch);
-		$head = self::getContents($head);
-		if (preg_match('#^HTTP/\d+\.\d+ (\d+) #', $head, $out)) {
-			$code = (int) $out[1];
-		} else {
-			$code = 999;
-		}
-		curl_close($ch);
-		return $data;
-	}
-
-	/**
-	 * Download file, obey given timeout in seconds
-	 * Return true on success, false on failure
-	 */
-	public static function downloadToFile($target, $url, $timeout, &$code)
-	{
-		$fh = fopen($target, 'wb');
-		if ($fh === false)
-			Util::traceError("Could not open $target for writing.");
-		$ch = self::initCurl($url, $timeout, $head);
-		curl_setopt($ch, CURLOPT_FILE, $fh);
-		$res = curl_exec($ch);
-		$head = self::getContents($head);
-		curl_close($ch);
-		fclose($fh);
-		if ($res === false) {
-			@unlink($target);
-			return false;
-		}
-		if (preg_match('#^HTTP/\d+\.\d+ (\d+) #', $head, $out)) {
-			$code = (int) $out[1];
-		} else {
-			$code = '999 ' . curl_error($ch);
-		}
-		return true;
-	}
-
 	/**
 	 * Convert given number to human readable file size string.
 	 * Will append Bytes, KiB, etc. depending on magnitude of number.
@@ -249,5 +167,22 @@ class Util
 
 		return true;
 	}
+	
+	/**
+	 * Return contents of given file as string, but only read up to maxBytes bytes.
+	 *
+	 * @param string $file file to read
+	 * @param int $maxBytes maximum length to read
+	 * @return boolean success or failure
+	 */
+	public static function readFile($file, $maxBytes = 1000)
+	{
+		$fh = @fopen($file, 'rb');
+		if ($fh === false)
+			return false;
+		$data = fread($fh, $maxBytes);
+		fclose($fh);
+		return $data;
+	}
 
 }
-- 
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