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commit 778e8ab8797f560777da4b74248a46b873b70bdc 0 parents
@dmitrymin dmitrymin authored
1  .htaccess
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+Options +Indexes
71 README.txt
@@ -0,0 +1,71 @@
+HTTP_ImageResizer: Load and resize images from non-file sources with nginx caching.
+(C) Dmitry Koterov, http://dklab.ru/lib/HTTP_ImageResizer/
+
+This library is used to load static image content from anywhere (e.g. from a
+database, from remote storage etc.), resize it and return to browser. Fetching
+and resizing is performed "on demand": images are resized when a request
+arrives, but resized result is stored to nginx (or similar) cache, so there
+is no performance bottleneck.
+
+1. Build an image URL
+---------------------
+
+$signer = new HTTP_UrlSigner("very-secret-word",'http://example.com/image.php?*');
+$resizer = new HTTP_ImageResizer($signer, null);
+$paramsToPassToProcessor = array(
+ "w" => 20,
+ "h" => 30,
+ "format" => "jpeg",
+ "bg" => "00FF00",
+ "quality" => 90,
+ // Everything else are custom parameters:
+ "id" => 10,
+ "any" => "other",
+);
+echo '<img src="' . $resizer->getUrl($paramsToPassToProcessor) . '"/>';
+
+Result looks like: <img src="http://example.com/image.php?af0b386b9dc43dc0..." />
+Passed parameters is encoded, signed and accessible in image.php processor.
+
+
+2. Process an image request at image.php
+----------------------------------------
+
+<?php
+...
+$signer = new HTTP_UrlSigner("very-secret-word",'http://example.com/image.php?*');
+$resizer = new HTTP_ImageResizer($signer, "callbackImageRawContent");
+$resizer->main($_SERVER['REQUEST_URI']);
+...
+function callbackImageRawContent($paramsPassedToProcessor)
+{
+ // $paramsPassedToProcessor["id"] and $paramsPassedToProcessor["other"]
+ // are accessible here.
+ return DB::selectCell(
+ "SELECT raw FROM image WHERE id=?",
+ $paramsPassedToProcessor['id']
+ );
+ // ...or similar
+}
+
+3. Configure nginx caching (very important!)
+--------------------------------------------
+
+fastcgi_cache_path /var/cache/nginx levels= keys_zone=cache:10m;
+...
+location /image.php {
+ fastcgi_cache cache;
+ fastcgi_cache_valid 200 304 404 240h;
+ fastcgi_cache_key "method=$request_method|ims=$http_if_modified_since|inm=$http_if_none_match|host=$host|uri=$request_uri";
+ fastcgi_hide_header "Set-Cookie";
+ fastcgi_ignore_headers "Cache-Control" "Expires";
+ ...
+ # or use proxy_* commands if you use Apache, not FastCGI PHP
+}
+
+If you do not configure nginx (or similar) caching, resize process will be
+executed on each request, it is VERY slow! So be sure to use
+
+ab -n 10000 -c 10 http://example.com/image.php?af0b386b9dc43dc0
+
+after configuring nginx to test that caching works correctly.
1  lib/.htaccess
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+AddHandler application/x-httpd-php-source php
183 lib/HTTP/ImageResizer.php
@@ -0,0 +1,183 @@
+<?php
+require_once "HTTP/UrlSigner.php";
+
+class HTTP_ImageResizer
+{
+ private $_urlSigner;
+ private $_dataGetter;
+
+ /**
+ * Create a new ImageResizer object.
+ *
+ * @param HTTP_UrlSigner $urlSigner
+ * @param callback $dataGetter
+ */
+ public function __construct(HTTP_UrlSigner $urlSigner, $dataGetter)
+ {
+ $this->_urlSigner = $urlSigner;
+ $this->_dataGetter = $dataGetter;
+ }
+
+ /**
+ * Front controller method.
+ * Process the request and prints resulting image.
+ *
+ * @param string $requestUrl URL of the current script. May be absolute or relative.
+ * @return void Never returns.
+ */
+ public function main($requestUrl)
+ {
+ try {
+ $params = $this->_urlSigner->parseUrl($requestUrl);
+ } catch (Exception $e) {
+ $this->_error($e->getMessage());
+ return;
+ }
+ list($mime, $data) = $this->getResize($params);
+ header("Content-Type: $mime");
+ // Cache forever, because file content never changes without ID change.
+ header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
+ header("Expires: Wed, 08 Jul 2037 22:53:52 GMT");
+ header("Cache-Control: public");
+ echo $data;
+ }
+
+ /**
+ * Builds URL with data is token mixed in.
+ *
+ * Input array may contain keys:
+ * - "w": width of the new image (required)
+ * - "h": height of the new image (required)
+ * - "bg": background color in HTML-format (if present, resulting image always
+ * has the size of w*h, and original image is drawed in the center)
+ * - "format": gif | jpeg | png (by default - png)
+ * - "quality": jpeg or png quality (optional)
+ *
+ * @param array $params
+ * @return string
+ */
+ public function getUrl(array $params)
+ {
+ assert('isset($params["w"])');
+ assert('isset($params["h"])');
+ return $this->_urlSigner->buildUrl($params);
+ }
+
+ /**
+ * Return resized image data.
+ *
+ * @param array $params
+ * @return array array($mime, $data)
+ */
+ public function getResize(array $params)
+ {
+ $data = call_user_func($this->_dataGetter, $params);
+ list ($mime, $data) = $this->_resize($data, $params);
+ return array($mime, $data);
+ }
+
+ /**
+ * Return URL signer object.
+ *
+ * @return HTTP_UrlSigner
+ */
+ public function getSigner()
+ {
+ return $this->_signer;
+ }
+
+ /**
+ * Called on error.
+ *
+ * @param string $msg
+ */
+ protected function _error($msg)
+ {
+ header("HTTP/1.1 404 Not Found");
+ echo $msg;
+ }
+
+ private function _resize($data, array $params)
+ {
+ list($w, $h, $mime) = $this->_getImageSize($data);
+
+ $maxW = $params['w'];
+ $maxH = $params['h'];
+
+ if (!$maxW || $maxW > $w) $maxW = $w;
+ if (!$maxH || $maxH > $h) $maxH = $h;
+
+ if ($w <= $maxW && $h <= $maxH) {
+ return array($mime, $data);
+ }
+
+ $im = imagecreatefromstring($data);
+// imagefilledpolygon($im, array(80,50, 500,50, 500,125, 80,125), 4, imagecolorallocate($im, 240,240,240));
+ $newW = $w;
+ $newH = $h;
+
+ if ($newW > $maxW || $newH > $maxH) {
+ if ($newW > $maxW && $newH > $maxH) {
+ $newW = $maxW;
+ $newH = $h * ($newW / $w);
+ if ($newH > $maxH) {
+ $newH = $maxH;
+ $newW = $w * ($newH / $h);
+ }
+ } elseif ($newW > $maxW) {
+ $newW = $maxW;
+ $newH = $newW / ($w / $h);
+ } else {
+ $newW = $newH / ($h / $w);
+ $newH = $maxH;
+ }
+ }
+
+ $newW = round($newW);
+ $newH = round($newH);
+
+// imagestring($im, 5, 90, 60, $maxW . ' x ' . $maxH, imagecolorallocate($im, 255,0,0));
+// imagestring($im, 5, 90, 100, round($newW) . ' x ' . round($newH), imagecolorallocate($im, 0,0,255));
+ if (strlen(@$params['bg'])) {
+ $newIm = imagecreatetruecolor(max($newW, $params['w']), max($newH, $params['h']));
+ $rgb = sscanf(preg_replace('/#/', '', $params['bg']), '%2x%2x%2x');
+ $color = imagecolorallocate($newIm, $rgb[0], $rgb[1], $rgb[2]);
+ imagefilledrectangle($newIm, 0, 0, imagesx($newIm) - 1, imagesy($newIm) - 1, $color);
+ $x = (imagesx($newIm) - $newW) / 2;
+ $y = (imagesy($newIm) - $newH) / 2;
+ } else {
+ $newIm = imagecreatetruecolor($newW, $newH);
+ $x = $y = 0;
+ }
+
+ $format = isset($params['format'])? $params['format'] : 'png';
+ $func = "image" . $format;
+
+ imagecopyresampled($newIm, $im, $x, $y, 0, 0, $newW, $newH, $w, $h);
+ ob_start();
+ if (isset($params['quality']) && $params['quality'] >= 0 && ($format == "jpeg" && $params['quality'] <= 100 || $format == "png" && $params['quality'] <= 9)) {
+ $func($newIm, null, $params['quality']);
+ } else {
+ $func($newIm);
+ }
+ $data = ob_get_clean();
+
+ return array("image/$format", $data);
+ }
+
+ private function _getImageSize($data)
+ {
+ $tmp = tempnam('/tmp', 'file');
+ file_put_contents($tmp, $data); // Unfortunately for jpeg - we HAVE to save ALL data, else we cannot detect image size.
+ list ($w, $h, $type) = getimagesize($tmp);
+ $mime = image_type_to_mime_type($type);
+ unlink($tmp);
+ return array($w, $h, $mime);
+ }
+
+ private function _getUriByUrl($url)
+ {
+ $parsed = parse_url($url);
+ return $parsed['path'] . (@$parsed['query']? '?' . $parsed['query'] : "");
+ }
+}
211 lib/HTTP/UrlSigner.php
@@ -0,0 +1,211 @@
+<?php
+/**
+ * Tool to create and parse digitally signed URLs with a number of
+ * secured parameters passed.
+ *
+ * Usage sample (URL builder):
+ * $signer = new HTTP_UrlSigner("my_secret", "http://example.com/img/*");
+ * echo '<img src="' . $signer->buildUrl(array('w' => 10, 'h' => 10)) . '" />';
+ *
+ * Usage sample (URL parser):
+ * $signer = new HTTP_UrlSigner("my_secret", "http://example.com/img/*");
+ * $params = $signer->parseUrl($_SERVER['REQUEST_URI']);
+ *
+ * This sample guarantees that we get the same $params content than we
+ * packed at the builder stage, and nobody else could create such URLs
+ * (if he does not know the secret, of course).
+ *
+ * Base URL (passed to the constructor) may be relative or absolute.
+ * URL to be parsed may also be passed as relative or absolute.
+ *
+ * @version 1.01
+ */
+class HTTP_UrlSigner
+{
+ /**
+ * Replacements to convert base64 encoded string to safe URL.
+ *
+ * @var array
+ */
+ private $_safeBase64 = array(array('+', '/', "="), array('_', '~', '-'));
+
+ /**
+ * Secret code to make digital signature.
+ *
+ * @var string
+ */
+ private $_secret;
+
+ /**
+ * http://example.com/some/a_*_/path?abc
+ * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ *
+ * @var string
+ */
+ private $_mask;
+
+ /**
+ * http://example.com/some/a_*_/path?abc
+ * ^^^^^^^^^^^^^^^^^^^^^^^^^^
+ *
+ * @var string
+ */
+ private $_maskPrefixFull = null;
+
+ /**
+ * http://example.com/some/a_*_/path?abc
+ * ^^^^^^^^
+ *
+ * @var string
+ */
+ private $_maskPrefix = null;
+
+ /**
+ * http://example.com/some/a_*_/path?abc
+ * ^^^^^^^^^^
+ *
+ * @var string
+ */
+ private $_maskSuffix = null;
+
+ /**
+ * Create new ImageResizer object.
+ *
+ * @param string $secret
+ * @param string $baseUrl
+ */
+ public function __construct($secret, $urlMask)
+ {
+ $this->_secret = $secret;
+ $this->_mask = $urlMask;
+ list ($this->_maskPrefixFull, $this->_maskPrefix, , $this->_maskSuffix) = $this->_splitUrl($this->_mask);
+ }
+
+ /**
+ * Builds URL with data is token mixed in.
+ *
+ * @param array $params
+ * @return string
+ */
+ public function buildUrl(array $params)
+ {
+ $token = http_build_query($params);
+ if (function_exists('gzdeflate')) {
+ $deflated = gzdeflate($token);
+ if ($this->_strlen($deflated) < $this->_strlen($token)) {
+ $token = "z" . $deflated;
+ } else {
+ $token = "a" . $token;
+ }
+ } else {
+ $token = "a" . $token;
+ }
+ $token = base64_encode($token);
+ $token = str_replace($this->_safeBase64[0], $this->_safeBase64[1], $token);
+ $token = join("/", str_split($token, 80));
+ // Add digital signature to the end of the PACKED result. We cannot insert
+ // the signature before packing, because else a hacked may create another
+ // pack which unpacks to the same result. Add signatures at the beginning,
+ // because we need an easy way to explode() them back.
+ $token =
+ $this->_hash($this->_secret . $this->_maskPrefixFull . $token . $this->_maskSuffix) .
+ "/" .
+ $this->_hash($this->_secret . $this->_maskPrefix . $token . $this->_maskSuffix) .
+ "/" .
+ $token;
+ return str_replace("*", $token, $this->_mask);
+ }
+
+ /**
+ * Parses passed URL and return extracted data items.
+ *
+ * @param string $url
+ * @return array
+ */
+ public function parseUrl($url)
+ {
+ list ($prefixFull, $prefix, $token, $suffix) = $this->_splitUrl($url);
+ @list ($signFull, $sign, $token) = explode("/", $token, 3);
+ if ($this->_maskPrefixFull === $this->_maskPrefix) {
+ // Base URL is relative => compare relative signatures only.
+ $ok = $this->_hash($this->_secret . $prefix . $token . $suffix) === $sign;
+ } else if ($prefixFull !== $prefix) {
+ // Checked URL is absolute => compare absolute signatures [we know that base URL is absolute].
+ $ok = $this->_hash($this->_secret . $prefixFull . $token . $suffix) === $signFull;
+ } else {
+ // Checked URL is relative [we know that base URL is absolute].
+ $ok = $this->_hash($this->_secret . $prefix . $token . $suffix) === $sign;
+ }
+ if (!$ok) {
+ throw new Exception("Wrong digital signature");
+ }
+ $token = str_replace('/', '', $token);
+ $token = str_replace($this->_safeBase64[1], $this->_safeBase64[0], $token);
+ $token = @base64_decode($token);
+ if (!$token) {
+ throw new Exception("Invalid URL token encoding");
+ }
+ if (@$token[0] == "z") {
+ $token = gzinflate($this->_substr($token, 1));
+ } else {
+ $token = $this->_substr($token, 1);
+ }
+ $params = null;
+ parse_str($token, $params);
+ return $params;
+ }
+
+ protected function _getUriByUrl($url)
+ {
+ $m = null;
+ if (preg_match('{^(?:\w+:)?//[^/?]+(.*)$}s', $url, $m)) {
+ return $m[1];
+ }
+ return $url;
+ }
+
+ protected function _splitUrl($url)
+ {
+ if ($this->_maskPrefix === null) {
+ $m = null;
+ if (!preg_match('/^(.*)\*(.*)$/', $this->_mask, $m)) {
+ throw new Exception("URL mask must contain \"*\", {$this->_mask} given");
+ }
+ $this->_maskPrefixFull = $m[1];
+ $this->_maskPrefix = $this->_getUriByUrl($this->_maskPrefixFull);
+ $this->_maskSuffix = $m[2];
+ }
+ // ^(http://example.com(/some/a_)) (*) (_/path?abc)$
+ if ($this->_maskPrefix === $this->_maskPrefixFull) {
+ $url = $this->_getUriByUrl($url);
+ }
+ $hasProtocol = preg_match('{^(\w+:)?//}s', $url);
+ $re = '^(' .
+ ($hasProtocol? preg_quote($this->_substr($this->_maskPrefixFull, 0, -$this->_strlen($this->_maskPrefix)), '/') : "") .
+ "(" . preg_quote($this->_maskPrefix, '/') . ")" .
+ ")(.+)(" . preg_quote($this->_maskSuffix, '/') . ')$';
+ if (!preg_match("/$re/s", $url, $m)) {
+ throw new Exception("URL does not match the mask \"{$this->_mask}\"");
+ }
+ return array($m[1], $m[2], $m[3], $m[4]);
+ }
+
+ protected function _hash($data)
+ {
+ return md5($this->_secret . $data);
+ }
+
+ private function _strlen($s)
+ {
+ return function_exists('mb_orig_strlen')? mb_orig_strlen($s) : strlen($s);
+ }
+
+ private function _substr($s, $from, $len = null)
+ {
+ if ($len !== null) {
+ return function_exists('mb_orig_substr')? mb_orig_substr($s, $from, $len) : substr($s, $from, $len);
+ } else {
+ return function_exists('mb_orig_substr')? mb_orig_substr($s, $from) : substr($s, $from);
+ }
+ }
+}
4 lib/config.php
@@ -0,0 +1,4 @@
+<?php
+if (!defined("PATH_SEPARATOR"))
+ define("PATH_SEPARATOR", getenv("COMSPEC")? ";" : ":");
+ini_set("include_path", ini_get("include_path").PATH_SEPARATOR.dirname(__FILE__));
502 lib/license.txt
@@ -0,0 +1,502 @@
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL. It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+Licenses are intended to guarantee your freedom to share and change
+free software--to make sure the software is free for all its users.
+
+ This license, the Lesser General Public License, applies to some
+specially designated software packages--typically libraries--of the
+Free Software Foundation and other authors who decide to use it. You
+can use it too, but we suggest you first think carefully about whether
+this license or the ordinary General Public License is the better
+strategy to use in any particular case, based on the explanations below.
+
+ When we speak of free software, we are referring to freedom of use,
+not price. Our General Public Licenses are designed to make sure that
+you have the freedom to distribute copies of free software (and charge
+for this service if you wish); that you receive source code or can get
+it if you want it; that you can change the software and use pieces of
+it in new free programs; and that you are informed that you can do
+these things.
+
+ To protect your rights, we need to make restrictions that forbid
+distributors to deny you these rights or to ask you to surrender these
+rights. These restrictions translate to certain responsibilities for
+you if you distribute copies of the library or if you modify it.
+
+ For example, if you distribute copies of the library, whether gratis
+or for a fee, you must give the recipients all the rights that we gave
+you. You must make sure that they, too, receive or can get the source
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+with the library after making changes to the library and recompiling
+it. And you must show them these terms so they know their rights.
+
+ We protect your rights with a two-step method: (1) we copyright the
+library, and (2) we offer you this license, which gives you legal
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+
+ To protect each distributor, we want to make it very clear that
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+
+ Finally, software patents pose a constant threat to the existence of
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+
+ Most GNU software, including some libraries, is covered by the
+ordinary GNU General Public License. This license, the GNU Lesser
+General Public License, applies to certain designated libraries, and
+is quite different from the ordinary General Public License. We use
+this license for certain libraries in order to permit linking those
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+
+ When a program is linked with a library, whether statically or using
+a shared library, the combination of the two is legally speaking a
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+Public License permits more lax criteria for linking other code with
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+
+ We call this license the "Lesser" General Public License because it
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2  t/HTTP_ImageResizer/.htaccess
@@ -0,0 +1,2 @@
+AddHandler application/x-httpd-php phpt
+php_flag output_buffering On
20 t/HTTP_ImageResizer/010_resize_fit.phpt
@@ -0,0 +1,20 @@
+--TEST--
+HTTP_UrlSigner: resize to fit width
+--FILE--
+<?php
+require dirname(__FILE__) . '/init.php';
+
+$im = getResizedIm(array("name" => "m2.jpg", "w" => 100, "h" => 100));
+echo imagesx($im) . " x " . imagesy($im) . "\n";
+echo roundColor(imagecolorat($im, 50, 20)) . "\n";
+echo roundColor(imagecolorat($im, 99, 20)) . "\n";
+echo roundColor(imagecolorat($im, 50, 40)) . "\n";
+echo roundColor(imagecolorat($im, 0, 20)) . "\n";
+?>
+
+--EXPECT--
+100 x 41
+00F000
+00F000
+00F000
+00F000
23 t/HTTP_ImageResizer/020_resize_bg.phpt
@@ -0,0 +1,23 @@
+--TEST--
+HTTP_UrlSigner: resize with background
+--FILE--
+<?php
+require dirname(__FILE__) . '/init.php';
+
+$im = getResizedIm(array("name" => "m2.jpg", "w" => 100, "h" => 100, "bg" => "#FF0000", "quality" => 9));
+echo imagesx($im) . " x " . imagesy($im) . "\n";
+echo roundColor(imagecolorat($im, 50, 0)) . "\n";
+echo roundColor(imagecolorat($im, 99, 50)) . "\n";
+echo roundColor(imagecolorat($im, 50, 99)) . "\n";
+echo roundColor(imagecolorat($im, 0, 50)) . "\n";
+echo roundColor(imagecolorat($im, 50, 50)) . "\n";
+?>
+
+--EXPECT--
+100 x 100
+F00000
+00F000
+F00000
+00F000
+00F000
+
26 t/HTTP_ImageResizer/030_main.phpt
@@ -0,0 +1,26 @@
+--TEST--
+HTTP_UrlSigner: main()
+--FILE--
+<?php
+require dirname(__FILE__) . '/init.php';
+
+ob_start();
+$resizer->main($resizer->getUrl(array("name" => "m2.jpg", "w" => 100, "h" => 100)));
+$data = ob_get_clean();
+$im = imagecreatefromstring($data);
+
+echo imagesx($im) . " x " . imagesy($im) . "\n";
+echo roundColor(imagecolorat($im, 50, 20)) . "\n";
+echo roundColor(imagecolorat($im, 99, 20)) . "\n";
+echo roundColor(imagecolorat($im, 50, 40)) . "\n";
+echo roundColor(imagecolorat($im, 0, 20)) . "\n";
+
+?>
+
+--EXPECT--
+100 x 41
+00F000
+00F000
+00F000
+00F000
+
11 t/HTTP_ImageResizer/040_main_error.phpt
@@ -0,0 +1,11 @@
+--TEST--
+HTTP_UrlSigner: main()
+--FILE--
+<?php
+require dirname(__FILE__) . '/init.php';
+
+$resizer->main("aaa");
+?>
+
+--EXPECT--
+URL does not match the mask "http://example.com/file/*?abc"
BIN  t/HTTP_ImageResizer/fixture/m2.jpg
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
29 t/HTTP_ImageResizer/init.php
@@ -0,0 +1,29 @@
+<?php
+header("Content-type: text/plain");
+chdir(dirname(__FILE__));
+include_once "../../lib/config.php";
+include_once "HTTP/ImageResizer.php";
+
+$signer = new HTTP_UrlSigner('some-secret-code', "http://example.com/file/*?abc");
+$resizer = new HTTP_ImageResizer($signer, "imageGetter");
+
+function roundColor($color)
+{
+ $color = sprintf("%06x", $color);
+ $rgb = sscanf($color, '%2x%2x%2x');
+ foreach ($rgb as $c) {
+ echo sprintf("%02X", $c & 0xF0);
+ }
+}
+
+function getResizedIm($params)
+{
+ global $resizer;
+ list ($mime, $data) = $resizer->getResize($params);
+ return imagecreatefromstring($data);
+}
+
+function imageGetter(array $params)
+{
+ return file_get_contents("fixture/" . $params['name']);
+}
2  t/HTTP_UrlSigner/.htaccess
@@ -0,0 +1,2 @@
+AddHandler application/x-httpd-php phpt
+php_flag output_buffering On
29 t/HTTP_UrlSigner/010_uri_by_url.phpt
@@ -0,0 +1,29 @@
+--TEST--
+HTTP_UrlSigner: test URL to URI conversion
+--FILE--
+<?php
+require dirname(__FILE__) . '/init.php';
+
+$signer->callGetUriByUrl("//example.com");
+$signer->callGetUriByUrl("http://example.com");
+$signer->callGetUriByUrl("http://example.com?");
+$signer->callGetUriByUrl("http://example.com/");
+$signer->callGetUriByUrl("http://example.com?abc");
+$signer->callGetUriByUrl("http://example.com/abc");
+$signer->callGetUriByUrl("http://example.com/abc?");
+$signer->callGetUriByUrl("http://example.com/abc?a=b&c");
+$signer->callGetUriByUrl("/abc?a=b&c");
+$signer->callGetUriByUrl("abc?a=b&c");
+?>
+
+--EXPECT--
+getUriByUrl: //example.com ->
+getUriByUrl: http://example.com ->
+getUriByUrl: http://example.com? -> ?
+getUriByUrl: http://example.com/ -> /
+getUriByUrl: http://example.com?abc -> ?abc
+getUriByUrl: http://example.com/abc -> /abc
+getUriByUrl: http://example.com/abc? -> /abc?
+getUriByUrl: http://example.com/abc?a=b&c -> /abc?a=b&c
+getUriByUrl: /abc?a=b&c -> /abc?a=b&c
+getUriByUrl: abc?a=b&c -> abc?a=b&c
17 t/HTTP_UrlSigner/020_split_url.phpt
@@ -0,0 +1,17 @@
+--TEST--
+HTTP_UrlSigner: test URL splitting
+--FILE--
+<?php
+require dirname(__FILE__) . '/init.php';
+
+$signer->callSplitUrl("abc");
+$signer->callSplitUrl("http://example.com");
+$signer->callSplitUrl("http://example.com/file/zzzz?abc");
+$signer->callSplitUrl("/file/zzzz?abc");
+?>
+
+--EXPECT--
+splitUrl: abc -> URL does not match the mask "http://example.com/file/*?abc"
+splitUrl: http://example.com -> URL does not match the mask "http://example.com/file/*?abc"
+splitUrl: http://example.com/file/zzzz?abc -> ( http://example.com/file/ | /file/ | zzzz | ?abc )
+splitUrl: /file/zzzz?abc -> ( /file/ | /file/ | zzzz | ?abc )
19 t/HTTP_UrlSigner/030_split_url_relative_base.phpt
@@ -0,0 +1,19 @@
+--TEST--
+HTTP_UrlSigner: test URL splitting when base mask is URI
+--FILE--
+<?php
+require dirname(__FILE__) . '/init.php';
+
+$signer = new HTTP_UrlSigner_Stub('some-secret-code', "/file/*?abc");
+
+$signer->callSplitUrl("abc");
+$signer->callSplitUrl("http://example.com");
+$signer->callSplitUrl("http://example.com/file/zzzz?abc");
+$signer->callSplitUrl("/file/zzzz?abc");
+?>
+
+--EXPECT--
+splitUrl: abc -> URL does not match the mask "/file/*?abc"
+splitUrl: http://example.com -> URL does not match the mask "/file/*?abc"
+splitUrl: http://example.com/file/zzzz?abc -> ( /file/ | /file/ | zzzz | ?abc )
+splitUrl: /file/zzzz?abc -> ( /file/ | /file/ | zzzz | ?abc )
52 t/HTTP_UrlSigner/100_simple_js.phpt
@@ -0,0 +1,52 @@
+--TEST--
+HTTP_UrlSigner: simple test
+--FILE--
+<?php
+require dirname(__FILE__) . '/init.php';
+
+$fixture = array("a" => "abc", "b" => array(1, 2, 3));
+print_r($fixture);
+echo "\n";
+
+echo "Base URL is absolute:\n";
+$signer = new HTTP_UrlSigner_Stub('some-secret-code', "http://example.com/file/*?abc");
+$signer->callBuildParse($fixture, false);
+$signer->callBuildParse($fixture, true);
+$signer->callBuildParse($fixture, false, 'ab');
+$signer->callBuildParse($fixture, true, 'ab');
+$signer->callBuildParse($fixture, false, null, '!!!');
+
+echo "\nBase URL is relative:\n";
+$signer->callBuildParse($fixture, false);
+$signer->callBuildParse($fixture, true);
+$signer->callBuildParse($fixture, false, 'ab');
+$signer->callBuildParse($fixture, true, 'ab');
+$signer->callBuildParse($fixture, false, null, '!!!');
+
+?>
+--EXPECT--
+Array
+(
+ [a] => abc
+ [b] => Array
+ (
+ [0] => 1
+ [1] => 2
+ [2] => 3
+ )
+
+)
+
+Base URL is absolute:
+matched
+matched (passed relative URL)
+URL does not match the mask "http://example.com/file/*?abc" (with additional suffix 'ab')
+URL does not match the mask "http://example.com/file/*?abc" (passed relative URL) (with additional suffix 'ab')
+Wrong digital signature (with token mangler '!!!')
+
+Base URL is relative:
+matched
+matched (passed relative URL)
+URL does not match the mask "http://example.com/file/*?abc" (with additional suffix 'ab')
+URL does not match the mask "http://example.com/file/*?abc" (passed relative URL) (with additional suffix 'ab')
+Wrong digital signature (with token mangler '!!!')
45 t/HTTP_UrlSigner/init.php
@@ -0,0 +1,45 @@
+<?php
+header("Content-type: text/plain");
+chdir(dirname(__FILE__));
+include_once "../../lib/config.php";
+include_once "HTTP/UrlSigner.php";
+
+class HTTP_UrlSigner_Stub extends HTTP_UrlSigner
+{
+ public function callSplitUrl($url)
+ {
+ try {
+ $result = $this->_splitUrl($url);
+ } catch (Exception $e) {
+ $result = $e->getMessage();
+ }
+ echo "splitUrl: $url -> " . (is_array($result)? "( " . join(" | ", $result) . " )" : $result) . "\n";
+ }
+
+ public function callGetUriByUrl($url)
+ {
+ $result = $this->_getUriByUrl($url);
+ echo "getUriByUrl: $url -> $result\n";
+ }
+
+ public function callBuildParse($params, $passRelativeUrl = false, $passSuffix = '', $mangleToken = '')
+ {
+ try {
+ $url = $this->buildUrl($params);
+ if ($passRelativeUrl) $url = $this->_getUriByUrl($url);
+ $url .= $passSuffix;
+ $url = preg_replace('/(?=\?)/s', $mangleToken, $url);
+// echo "$url\n";
+ $parsed = $this->parseUrl($url);
+ echo http_build_query($parsed) === http_build_query($params)? "matched" : "not matched";
+ } catch (Exception $e) {
+ echo $e->getMessage();
+ }
+ if ($passRelativeUrl) echo " (passed relative URL)";
+ if ($passSuffix) echo " (with additional suffix '$passSuffix')";
+ if ($mangleToken) echo " (with token mangler '$mangleToken')";
+ echo "\n";
+ }
+}
+
+$signer = new HTTP_UrlSigner_Stub('some-secret-code', "http://example.com/file/*?abc");
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