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Merge pull request #393 from sembrestels/minify-rebased

Fixes #2110: Adds options to compress CSS/JS in simplecache
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commit 406ee0ee85a92403f98515882c5f17ecf4555aa0 2 parents a00120f + cc402a9
@mrclay mrclay authored
Showing with 10,970 additions and 15 deletions.
  1. +10 −15 actions/admin/site/update_advanced.php
  2. +34 −0 engine/lib/views.php
  3. +4 −0 languages/en.php
  4. +728 −0 vendors/minify/lib/CSSMin.php
  5. +121 −0 vendors/minify/lib/DooDigestAuth.php
  6. +1,370 −0 vendors/minify/lib/FirePHP.php
  7. +366 −0 vendors/minify/lib/HTTP/ConditionalGet.php
  8. +335 −0 vendors/minify/lib/HTTP/Encoder.php
  9. +385 −0 vendors/minify/lib/JSMin.php
  10. +2,086 −0 vendors/minify/lib/JSMinPlus.php
  11. +606 −0 vendors/minify/lib/Minify.php
  12. +101 −0 vendors/minify/lib/Minify/Build.php
  13. +99 −0 vendors/minify/lib/Minify/CSS.php
  14. +249 −0 vendors/minify/lib/Minify/CSS/Compressor.php
  15. +310 −0 vendors/minify/lib/Minify/CSS/UriRewriter.php
  16. +133 −0 vendors/minify/lib/Minify/Cache/APC.php
  17. +194 −0 vendors/minify/lib/Minify/Cache/File.php
  18. +140 −0 vendors/minify/lib/Minify/Cache/Memcache.php
  19. +142 −0 vendors/minify/lib/Minify/Cache/ZendPlatform.php
  20. +123 −0 vendors/minify/lib/Minify/ClosureCompiler.php
  21. +89 −0 vendors/minify/lib/Minify/CommentPreserver.php
  22. +222 −0 vendors/minify/lib/Minify/Controller/Base.php
  23. +76 −0 vendors/minify/lib/Minify/Controller/Files.php
  24. +91 −0 vendors/minify/lib/Minify/Controller/Groups.php
  25. +241 −0 vendors/minify/lib/Minify/Controller/MinApp.php
  26. +68 −0 vendors/minify/lib/Minify/Controller/Page.php
  27. +116 −0 vendors/minify/lib/Minify/Controller/Version1.php
  28. +26 −0 vendors/minify/lib/Minify/DebugDetector.php
  29. +246 −0 vendors/minify/lib/Minify/HTML.php
  30. +193 −0 vendors/minify/lib/Minify/HTML/Helper.php
  31. +216 −0 vendors/minify/lib/Minify/ImportProcessor.php
  32. +132 −0 vendors/minify/lib/Minify/JS/ClosureCompiler.php
  33. +136 −0 vendors/minify/lib/Minify/Lines.php
  34. +28 −0 vendors/minify/lib/Minify/Loader.php
  35. +47 −0 vendors/minify/lib/Minify/Logger.php
  36. +37 −0 vendors/minify/lib/Minify/Packer.php
  37. +187 −0 vendors/minify/lib/Minify/Source.php
  38. +382 −0 vendors/minify/lib/Minify/YUI/CssCompressor.java
  39. +171 −0 vendors/minify/lib/Minify/YUI/CssCompressor.php
  40. +148 −0 vendors/minify/lib/Minify/YUICompressor.php
  41. +384 −0 vendors/minify/lib/MrClay/Cli.php
  42. +183 −0 vendors/minify/lib/MrClay/Cli/Arg.php
  43. +15 −0 views/default/forms/admin/site/update_advanced.php
View
25 actions/admin/site/update_advanced.php
@@ -42,6 +42,9 @@
elgg_disable_simplecache();
}
+ set_config('simplecache_minify_js', (int) get_input('simplecache_minify_js'), $site->getGUID());
+ set_config('simplecache_minify_css', (int) get_input('simplecache_minify_css'), $site->getGUID());
+
if (get_input('system_cache_enabled')) {
elgg_enable_system_cache();
} else {
@@ -50,7 +53,7 @@
set_config('default_access', get_input('default_access', ACCESS_PRIVATE), $site->getGUID());
- $user_default_access = (get_input('allow_user_default_access')) ? 1 : 0;
+ $user_default_access = (int) get_input('allow_user_default_access');
set_config('allow_user_default_access', $user_default_access, $site->getGUID());
set_config('view', get_input('view'), $site->getGUID());
@@ -63,28 +66,20 @@
}
// allow new user registration?
- if (get_input('allow_registration', FALSE)) {
- set_config('allow_registration', TRUE, $site->getGUID());
- } else {
- set_config('allow_registration', FALSE, $site->getGUID());
- }
+ $allow_registration = (bool) get_input('allow_registration', FALSE);
+ set_config('allow_registration', $allow_registration, $site->getGUID());
// setup walled garden
- if (get_input('walled_garden', FALSE)) {
- set_config('walled_garden', TRUE, $site->getGUID());
- } else {
- set_config('walled_garden', FALSE, $site->getGUID());
- }
+ $walled_garden = (bool) get_input('walled_garden', FALSE);
+ set_config('walled_garden', $walled_garden, $site->getGUID());
- $https_login = get_input('https_login');
- if ($https_login) {
+ if (get_input('https_login')) {
set_config('https_login', 1, $site->getGUID());
} else {
unset_config('https_login', $site->getGUID());
}
- $api = get_input('api');
- if ($api) {
+ if (get_input('api')) {
unset_config('disable_api', $site->getGUID());
} else {
set_config('disable_api', 'disabled', $site->getGUID());
View
34 engine/lib/views.php
@@ -1557,6 +1557,37 @@ function autoregister_views($view_base, $folder, $base_location_path, $viewtype)
}
/**
+ * Minifies simplecache CSS and JS views by handling the "simplecache:generate" hook
+ *
+ * @param string $hook The name of the hook
+ * @param string $type View type (css, js, or unknown)
+ * @param string $content Content of the view
+ * @param array $params Array of parameters
+ *
+ * @return string|null View content minified (if css/js type)
+ * @access private
+ */
+function _elgg_views_minify($hook, $type, $content, $params) {

why used _elgg_views_minify why not elgg_views_minify ?

@mrclay Owner
mrclay added a note

elgg_* prefix is reserved for public API functions. _elgg_* means internal use.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
+ static $autoload_registered;
+ if (!$autoload_registered) {
+ $path = elgg_get_root_path() . 'vendors/minify/lib';
+ elgg_get_class_loader()->addFallback($path);
+ $autoload_registered = true;
+ }
+
+ if ($type == 'js') {
+ if (elgg_get_config('simplecache_minify_js')) {
+ return JSMin::minify($content);
+ }
+ } elseif ($type == 'css') {
+ if (elgg_get_config('simplecache_minify_css')) {
+ $cssmin = new CSSmin();
+ return $cssmin->run($content);
+ }
+ }
+}
+
+/**
* Add the rss link to the extras when if needed
*
* @return void
@@ -1636,6 +1667,9 @@ function elgg_views_boot() {
elgg_register_ajax_view('js/languages');
+ elgg_register_plugin_hook_handler('simplecache:generate', 'css', '_elgg_views_minify');
+ elgg_register_plugin_hook_handler('simplecache:generate', 'js', '_elgg_views_minify');
+
elgg_register_plugin_hook_handler('output:before', 'layout', 'elgg_views_add_rss_link');
// discover the built-in view types
View
4 languages/en.php
@@ -1056,6 +1056,10 @@
'installation:simplecache:description' => "The simple cache increases performance by caching static content including some CSS and JavaScript files. Normally you will want this on.",
'installation:simplecache:label' => "Use simple cache (recommended)",
+ 'installation:minify:description' => "The simple cache can also improve front-end performance by compressing JavaScript and/or CSS content. Normally you will want these on.",
+ 'installation:minify_js:label' => "Compress JavaScript (recommended)",
+ 'installation:minify_css:label' => "Compress CSS (recommended)",
+
'installation:systemcache:description' => "The system cache decreases the loading time of the Elgg engine by caching data to files.",
'installation:systemcache:label' => "Use system cache (recommended)",
View
728 vendors/minify/lib/CSSMin.php
@@ -0,0 +1,728 @@
+<?php
+
+/*!
+ * cssmin.php rev 91c5ea5
+ * Author: Tubal Martin - http://blog.margenn.com/
+ * Repo: https://github.com/tubalmartin/YUI-CSS-compressor-PHP-port
+ *
+ * This is a PHP port of the Javascript port of the CSS minification tool
+ * distributed with YUICompressor, itself a port of the cssmin utility by
+ * Isaac Schlueter - http://foohack.com/
+ * Permission is hereby granted to use the PHP version under the same
+ * conditions as the YUICompressor.
+ */
+
+/*!
+ * YUI Compressor
+ * http://developer.yahoo.com/yui/compressor/
+ * Author: Julien Lecomte - http://www.julienlecomte.net/
+ * Copyright (c) 2011 Yahoo! Inc. All rights reserved.
+ * The copyrights embodied in the content of this file are licensed
+ * by Yahoo! Inc. under the BSD (revised) open source license.
+ */
+
+class CSSmin
+{
+ const NL = '___YUICSSMIN_PRESERVED_NL___';
+ const TOKEN = '___YUICSSMIN_PRESERVED_TOKEN_';
+ const COMMENT = '___YUICSSMIN_PRESERVE_CANDIDATE_COMMENT_';
+ const CLASSCOLON = '___YUICSSMIN_PSEUDOCLASSCOLON___';
+
+ private $comments;
+ private $preserved_tokens;
+ private $memory_limit;
+ private $max_execution_time;
+ private $pcre_backtrack_limit;
+ private $pcre_recursion_limit;
+ private $raise_php_limits;
+
+ /**
+ * @param bool|int $raise_php_limits
+ * If true, PHP settings will be raised if needed
+ */
+ public function __construct($raise_php_limits = TRUE)
+ {
+ // Set suggested PHP limits
+ $this->memory_limit = 128 * 1048576; // 128MB in bytes
+ $this->max_execution_time = 60; // 1 min
+ $this->pcre_backtrack_limit = 1000 * 1000;
+ $this->pcre_recursion_limit = 500 * 1000;
+
+ $this->raise_php_limits = (bool) $raise_php_limits;
+ }
+
+ /**
+ * Minify a string of CSS
+ * @param string $css
+ * @param int|bool $linebreak_pos
+ * @return string
+ */
+ public function run($css = '', $linebreak_pos = FALSE)
+ {
+ if (empty($css)) {
+ return '';
+ }
+
+ if ($this->raise_php_limits) {
+ $this->do_raise_php_limits();
+ }
+
+ $this->comments = array();
+ $this->preserved_tokens = array();
+
+ $start_index = 0;
+ $length = strlen($css);
+
+ $css = $this->extract_data_urls($css);
+
+ // collect all comment blocks...
+ while (($start_index = $this->index_of($css, '/*', $start_index)) >= 0) {
+ $end_index = $this->index_of($css, '*/', $start_index + 2);
+ if ($end_index < 0) {
+ $end_index = $length;
+ }
+ $comment_found = $this->str_slice($css, $start_index + 2, $end_index);
+ $this->comments[] = $comment_found;
+ $comment_preserve_string = self::COMMENT . (count($this->comments) - 1) . '___';
+ $css = $this->str_slice($css, 0, $start_index + 2) . $comment_preserve_string . $this->str_slice($css, $end_index);
+ // Set correct start_index: Fixes issue #2528130
+ $start_index = $end_index + 2 + strlen($comment_preserve_string) - strlen($comment_found);
+ }
+
+ // preserve strings so their content doesn't get accidentally minified
+ $css = preg_replace_callback('/(?:"(?:[^\\\\"]|\\\\.|\\\\)*")|'."(?:'(?:[^\\\\']|\\\\.|\\\\)*')/S", array($this, 'replace_string'), $css);
+
+ // Let's divide css code in chunks of 25.000 chars aprox.
+ // Reason: PHP's PCRE functions like preg_replace have a "backtrack limit"
+ // of 100.000 chars by default (php < 5.3.7) so if we're dealing with really
+ // long strings and a (sub)pattern matches a number of chars greater than
+ // the backtrack limit number (i.e. /(.*)/s) PCRE functions may fail silently
+ // returning NULL and $css would be empty.
+ $charset = '';
+ $charset_regexp = '/@charset [^;]+;/i';
+ $css_chunks = array();
+ $css_chunk_length = 25000; // aprox size, not exact
+ $start_index = 0;
+ $i = $css_chunk_length; // save initial iterations
+ $l = strlen($css);
+
+
+ // if the number of characters is 25000 or less, do not chunk
+ if ($l <= $css_chunk_length) {
+ $css_chunks[] = $css;
+ } else {
+ // chunk css code securely
+ while ($i < $l) {
+ $i += 50; // save iterations. 500 checks for a closing curly brace }
+ if ($l - $start_index <= $css_chunk_length || $i >= $l) {
+ $css_chunks[] = $this->str_slice($css, $start_index);
+ break;
+ }
+ if ($css[$i - 1] === '}' && $i - $start_index > $css_chunk_length) {
+ // If there are two ending curly braces }} separated or not by spaces,
+ // join them in the same chunk (i.e. @media blocks)
+ $next_chunk = substr($css, $i);
+ if (preg_match('/^\s*\}/', $next_chunk)) {
+ $i = $i + $this->index_of($next_chunk, '}') + 1;
+ }
+
+ $css_chunks[] = $this->str_slice($css, $start_index, $i);
+ $start_index = $i;
+ }
+ }
+ }
+
+ // Minify each chunk
+ for ($i = 0, $n = count($css_chunks); $i < $n; $i++) {
+ $css_chunks[$i] = $this->minify($css_chunks[$i], $linebreak_pos);
+ // Keep the first @charset at-rule found
+ if (empty($charset) && preg_match($charset_regexp, $css_chunks[$i], $matches)) {
+ $charset = $matches[0];
+ }
+ // Delete all @charset at-rules
+ $css_chunks[$i] = preg_replace($charset_regexp, '', $css_chunks[$i]);
+ }
+
+ // Update the first chunk and push the charset to the top of the file.
+ $css_chunks[0] = $charset . $css_chunks[0];
+
+ return implode('', $css_chunks);
+ }
+
+ /**
+ * Sets the memory limit for this script
+ * @param int|string $limit
+ */
+ public function set_memory_limit($limit)
+ {
+ $this->memory_limit = $this->normalize_int($limit);
+ }
+
+ /**
+ * Sets the maximum execution time for this script
+ * @param int|string $seconds
+ */
+ public function set_max_execution_time($seconds)
+ {
+ $this->max_execution_time = (int) $seconds;
+ }
+
+ /**
+ * Sets the PCRE backtrack limit for this script
+ * @param int $limit
+ */
+ public function set_pcre_backtrack_limit($limit)
+ {
+ $this->pcre_backtrack_limit = (int) $limit;
+ }
+
+ /**
+ * Sets the PCRE recursion limit for this script
+ * @param int $limit
+ */
+ public function set_pcre_recursion_limit($limit)
+ {
+ $this->pcre_recursion_limit = (int) $limit;
+ }
+
+ /**
+ * Try to configure PHP to use at least the suggested minimum settings
+ */
+ private function do_raise_php_limits()
+ {
+ $php_limits = array(
+ 'memory_limit' => $this->memory_limit,
+ 'max_execution_time' => $this->max_execution_time,
+ 'pcre.backtrack_limit' => $this->pcre_backtrack_limit,
+ 'pcre.recursion_limit' => $this->pcre_recursion_limit
+ );
+
+ // If current settings are higher respect them.
+ foreach ($php_limits as $name => $suggested) {
+ $current = $this->normalize_int(ini_get($name));
+ // memory_limit exception: allow -1 for "no memory limit".
+ if ($current > -1 && ($suggested == -1 || $current < $suggested)) {
+ ini_set($name, $suggested);
+ }
+ }
+ }
+
+ /**
+ * Does bulk of the minification
+ * @param string $css
+ * @param int|bool $linebreak_pos
+ * @return string
+ */
+ private function minify($css, $linebreak_pos)
+ {
+ // strings are safe, now wrestle the comments
+ for ($i = 0, $max = count($this->comments); $i < $max; $i++) {
+
+ $token = $this->comments[$i];
+ $placeholder = '/' . self::COMMENT . $i . '___/';
+
+ // ! in the first position of the comment means preserve
+ // so push to the preserved tokens keeping the !
+ if (substr($token, 0, 1) === '!') {
+ $this->preserved_tokens[] = $token;
+ $token_tring = self::TOKEN . (count($this->preserved_tokens) - 1) . '___';
+ $css = preg_replace($placeholder, $token_tring, $css, 1);
+ // Preserve new lines for /*! important comments
+ $css = preg_replace('/\s*[\n\r\f]+\s*(\/\*'. $token_tring .')/S', self::NL.'$1', $css);
+ $css = preg_replace('/('. $token_tring .'\*\/)\s*[\n\r\f]+\s*/S', '$1'.self::NL, $css);
+ continue;
+ }
+
+ // \ in the last position looks like hack for Mac/IE5
+ // shorten that to /*\*/ and the next one to /**/
+ if (substr($token, (strlen($token) - 1), 1) === '\\') {
+ $this->preserved_tokens[] = '\\';
+ $css = preg_replace($placeholder, self::TOKEN . (count($this->preserved_tokens) - 1) . '___', $css, 1);
+ $i = $i + 1; // attn: advancing the loop
+ $this->preserved_tokens[] = '';
+ $css = preg_replace('/' . self::COMMENT . $i . '___/', self::TOKEN . (count($this->preserved_tokens) - 1) . '___', $css, 1);
+ continue;
+ }
+
+ // keep empty comments after child selectors (IE7 hack)
+ // e.g. html >/**/ body
+ if (strlen($token) === 0) {
+ $start_index = $this->index_of($css, $this->str_slice($placeholder, 1, -1));
+ if ($start_index > 2) {
+ if (substr($css, $start_index - 3, 1) === '>') {
+ $this->preserved_tokens[] = '';
+ $css = preg_replace($placeholder, self::TOKEN . (count($this->preserved_tokens) - 1) . '___', $css, 1);
+ }
+ }
+ }
+
+ // in all other cases kill the comment
+ $css = preg_replace('/\/\*' . $this->str_slice($placeholder, 1, -1) . '\*\//', '', $css, 1);
+ }
+
+
+ // Normalize all whitespace strings to single spaces. Easier to work with that way.
+ $css = preg_replace('/\s+/', ' ', $css);
+
+ // Shorten & preserve calculations calc(...) since spaces are important
+ $css = preg_replace_callback('/calc(\((?:[^\(\)]+|(?1))*\))/i', array($this, 'replace_calc'), $css);
+
+ // Replace positive sign from numbers preceded by : or a white-space before the leading space is removed
+ // +1.2em to 1.2em, +.8px to .8px, +2% to 2%
+ $css = preg_replace('/((?<!\\\\)\:|\s)\+(\.?\d+)/S', '$1$2', $css);
+
+ // Remove leading zeros from integer and float numbers preceded by : or a white-space
+ // 000.6 to .6, -0.8 to -.8, 0050 to 50, -01.05 to -1.05
+ $css = preg_replace('/((?<!\\\\)\:|\s)(\-?)0+(\.?\d+)/S', '$1$2$3', $css);
+
+ // Remove trailing zeros from float numbers preceded by : or a white-space
+ // -6.0100em to -6.01em, .0100 to .01, 1.200px to 1.2px
+ $css = preg_replace('/((?<!\\\\)\:|\s)(\-?)(\d?\.\d+?)0+([^\d])/S', '$1$2$3$4', $css);
+
+ // Remove trailing .0 -> -9.0 to -9
+ $css = preg_replace('/((?<!\\\\)\:|\s)(\-?\d+)\.0([^\d])/S', '$1$2$3', $css);
+
+ // Replace 0 length numbers with 0
+ $css = preg_replace('/((?<!\\\\)\:|\s)\-?\.?0+([^\d])/S', '${1}0$2', $css);
+
+ // Remove the spaces before the things that should not have spaces before them.
+ // But, be careful not to turn "p :link {...}" into "p:link{...}"
+ // Swap out any pseudo-class colons with the token, and then swap back.
+ $css = preg_replace_callback('/(?:^|\})(?:(?:[^\{\:])+\:)+(?:[^\{]*\{)/', array($this, 'replace_colon'), $css);
+ $css = preg_replace('/\s+([\!\{\}\;\:\>\+\(\)\]\~\=,])/', '$1', $css);
+ $css = preg_replace('/' . self::CLASSCOLON . '/', ':', $css);
+
+ // retain space for special IE6 cases
+ $css = preg_replace('/\:first\-(line|letter)(\{|,)/i', ':first-$1 $2', $css);
+
+ // no space after the end of a preserved comment
+ $css = preg_replace('/\*\/ /', '*/', $css);
+
+ // Put the space back in some cases, to support stuff like
+ // @media screen and (-webkit-min-device-pixel-ratio:0){
+ $css = preg_replace('/\band\(/i', 'and (', $css);
+
+ // Remove the spaces after the things that should not have spaces after them.
+ $css = preg_replace('/([\!\{\}\:;\>\+\(\[\~\=,])\s+/S', '$1', $css);
+
+ // remove unnecessary semicolons
+ $css = preg_replace('/;+\}/', '}', $css);
+
+ // Fix for issue: #2528146
+ // Restore semicolon if the last property is prefixed with a `*` (lte IE7 hack)
+ // to avoid issues on Symbian S60 3.x browsers.
+ $css = preg_replace('/(\*[a-z0-9\-]+\s*\:[^;\}]+)(\})/', '$1;$2', $css);
+
+ // Replace 0 length units 0(px,em,%) with 0.
+ $css = preg_replace('/((?<!\\\\)\:|\s)\-?0(?:em|ex|ch|rem|vw|vh|vm|vmin|cm|mm|in|px|pt|pc|%)/iS', '${1}0', $css);
+
+ // Replace 0 0; or 0 0 0; or 0 0 0 0; with 0.
+ $css = preg_replace('/\:0(?: 0){1,3}(;|\})/', ':0$1', $css);
+
+ // Fix for issue: #2528142
+ // Replace text-shadow:0; with text-shadow:0 0 0;
+ $css = preg_replace('/(text-shadow\:0)(;|\})/ie', "strtolower('$1 0 0$2')", $css);
+
+ // Replace background-position:0; with background-position:0 0;
+ // same for transform-origin
+ $css = preg_replace('/(background\-position|(?:webkit|moz|o|ms|)\-?transform\-origin)\:0(;|\})/ieS', "strtolower('$1:0 0$2')", $css);
+
+ // Shorten colors from rgb(51,102,153) to #336699, rgb(100%,0%,0%) to #ff0000 (sRGB color space)
+ // Shorten colors from hsl(0, 100%, 50%) to #ff0000 (sRGB color space)
+ // This makes it more likely that it'll get further compressed in the next step.
+ $css = preg_replace_callback('/rgb\s*\(\s*([0-9,\s\-\.\%]+)\s*\)(.{1})/i', array($this, 'rgb_to_hex'), $css);
+ $css = preg_replace_callback('/hsl\s*\(\s*([0-9,\s\-\.\%]+)\s*\)(.{1})/i', array($this, 'hsl_to_hex'), $css);
+
+ // Shorten colors from #AABBCC to #ABC or short color name.
+ $css = $this->compress_hex_colors($css);
+
+ // border: none to border:0, outline: none to outline:0
+ $css = preg_replace('/(border\-?(?:top|right|bottom|left|)|outline)\:none(;|\})/ieS', "strtolower('$1:0$2')", $css);
+
+ // shorter opacity IE filter
+ $css = preg_replace('/progid\:DXImageTransform\.Microsoft\.Alpha\(Opacity\=/i', 'alpha(opacity=', $css);
+
+ // Remove empty rules.
+ $css = preg_replace('/[^\};\{\/]+\{\}/S', '', $css);
+
+ // Some source control tools don't like it when files containing lines longer
+ // than, say 8000 characters, are checked in. The linebreak option is used in
+ // that case to split long lines after a specific column.
+ if ($linebreak_pos !== FALSE && (int) $linebreak_pos >= 0) {
+ $linebreak_pos = (int) $linebreak_pos;
+ $start_index = $i = 0;
+ while ($i < strlen($css)) {
+ $i++;
+ if ($css[$i - 1] === '}' && $i - $start_index > $linebreak_pos) {
+ $css = $this->str_slice($css, 0, $i) . "\n" . $this->str_slice($css, $i);
+ $start_index = $i;
+ }
+ }
+ }
+
+ // Replace multiple semi-colons in a row by a single one
+ // See SF bug #1980989
+ $css = preg_replace('/;;+/', ';', $css);
+
+ // Restore new lines for /*! important comments
+ $css = preg_replace('/'. self::NL .'/', "\n", $css);
+
+ // restore preserved comments and strings
+ for ($i = 0, $max = count($this->preserved_tokens); $i < $max; $i++) {
+ $css = preg_replace('/' . self::TOKEN . $i . '___/', $this->preserved_tokens[$i], $css, 1);
+ }
+
+ // Trim the final string (for any leading or trailing white spaces)
+ return trim($css);
+ }
+
+ /**
+ * Utility method to replace all data urls with tokens before we start
+ * compressing, to avoid performance issues running some of the subsequent
+ * regexes against large strings chunks.
+ *
+ * @param string $css
+ * @return string
+ */
+ private function extract_data_urls($css)
+ {
+ // Leave data urls alone to increase parse performance.
+ $max_index = strlen($css) - 1;
+ $append_index = $index = $last_index = $offset = 0;
+ $sb = array();
+ $pattern = '/url\(\s*(["\']?)data\:/i';
+
+ // Since we need to account for non-base64 data urls, we need to handle
+ // ' and ) being part of the data string. Hence switching to indexOf,
+ // to determine whether or not we have matching string terminators and
+ // handling sb appends directly, instead of using matcher.append* methods.
+
+ while (preg_match($pattern, $css, $m, 0, $offset)) {
+ $index = $this->index_of($css, $m[0], $offset);
+ $last_index = $index + strlen($m[0]);
+ $start_index = $index + 4; // "url(".length()
+ $end_index = $last_index - 1;
+ $terminator = $m[1]; // ', " or empty (not quoted)
+ $found_terminator = FALSE;
+
+ if (strlen($terminator) === 0) {
+ $terminator = ')';
+ }
+
+ while ($found_terminator === FALSE && $end_index+1 <= $max_index) {
+ $end_index = $this->index_of($css, $terminator, $end_index + 1);
+
+ // endIndex == 0 doesn't really apply here
+ if ($end_index > 0 && substr($css, $end_index - 1, 1) !== '\\') {
+ $found_terminator = TRUE;
+ if (')' != $terminator) {
+ $end_index = $this->index_of($css, ')', $end_index);
+ }
+ }
+ }
+
+ // Enough searching, start moving stuff over to the buffer
+ $sb[] = $this->substring($css, $append_index, $index);
+
+ if ($found_terminator) {
+ $token = $this->substring($css, $start_index, $end_index);
+ $token = preg_replace('/\s+/', '', $token);
+ $this->preserved_tokens[] = $token;
+
+ $preserver = 'url(' . self::TOKEN . (count($this->preserved_tokens) - 1) . '___)';
+ $sb[] = $preserver;
+
+ $append_index = $end_index + 1;
+ } else {
+ // No end terminator found, re-add the whole match. Should we throw/warn here?
+ $sb[] = $this->substring($css, $index, $last_index);
+ $append_index = $last_index;
+ }
+
+ $offset = $last_index;
+ }
+
+ $sb[] = $this->substring($css, $append_index);
+
+ return implode('', $sb);
+ }
+
+ /**
+ * Utility method to compress hex color values of the form #AABBCC to #ABC or short color name.
+ *
+ * DOES NOT compress CSS ID selectors which match the above pattern (which would break things).
+ * e.g. #AddressForm { ... }
+ *
+ * DOES NOT compress IE filters, which have hex color values (which would break things).
+ * e.g. filter: chroma(color="#FFFFFF");
+ *
+ * DOES NOT compress invalid hex values.
+ * e.g. background-color: #aabbccdd
+ *
+ * @param string $css
+ * @return string
+ */
+ private function compress_hex_colors($css)
+ {
+ // Look for hex colors inside { ... } (to avoid IDs) and which don't have a =, or a " in front of them (to avoid filters)
+ $pattern = '/(\=\s*?["\']?)?#([0-9a-f])([0-9a-f])([0-9a-f])([0-9a-f])([0-9a-f])([0-9a-f])(\}|[^0-9a-f{][^{]*?\})/iS';
+ $_index = $index = $last_index = $offset = 0;
+ $sb = array();
+ // See: http://ajaxmin.codeplex.com/wikipage?title=CSS%20Colors
+ $short_safe = array(
+ '#808080' => 'gray',
+ '#008000' => 'green',
+ '#800000' => 'maroon',
+ '#000080' => 'navy',
+ '#808000' => 'olive',
+ '#800080' => 'purple',
+ '#c0c0c0' => 'silver',
+ '#008080' => 'teal',
+ '#f00' => 'red'
+ );
+
+ while (preg_match($pattern, $css, $m, 0, $offset)) {
+ $index = $this->index_of($css, $m[0], $offset);
+ $last_index = $index + strlen($m[0]);
+ $is_filter = (bool) $m[1];
+
+ $sb[] = $this->substring($css, $_index, $index);
+
+ if ($is_filter) {
+ // Restore, maintain case, otherwise filter will break
+ $sb[] = $m[1] . '#' . $m[2] . $m[3] . $m[4] . $m[5] . $m[6] . $m[7];
+ } else {
+ if (strtolower($m[2]) == strtolower($m[3]) &&
+ strtolower($m[4]) == strtolower($m[5]) &&
+ strtolower($m[6]) == strtolower($m[7])) {
+ // Compress.
+ $hex = '#' . strtolower($m[3] . $m[5] . $m[7]);
+ } else {
+ // Non compressible color, restore but lower case.
+ $hex = '#' . strtolower($m[2] . $m[3] . $m[4] . $m[5] . $m[6] . $m[7]);
+ }
+ // replace Hex colors to short safe color names
+ $sb[] = array_key_exists($hex, $short_safe) ? $short_safe[$hex] : $hex;
+ }
+
+ $_index = $offset = $last_index - strlen($m[8]);
+ }
+
+ $sb[] = $this->substring($css, $_index);
+
+ return implode('', $sb);
+ }
+
+ /* CALLBACKS
+* ---------------------------------------------------------------------------------------------
+*/
+
+ private function replace_string($matches)
+ {
+ $match = $matches[0];
+ $quote = substr($match, 0, 1);
+ // Must use addcslashes in PHP to avoid parsing of backslashes
+ $match = addcslashes($this->str_slice($match, 1, -1), '\\');
+
+ // maybe the string contains a comment-like substring?
+ // one, maybe more? put'em back then
+ if (($pos = $this->index_of($match, self::COMMENT)) >= 0) {
+ for ($i = 0, $max = count($this->comments); $i < $max; $i++) {
+ $match = preg_replace('/' . self::COMMENT . $i . '___/', $this->comments[$i], $match, 1);
+ }
+ }
+
+ // minify alpha opacity in filter strings
+ $match = preg_replace('/progid\:DXImageTransform\.Microsoft\.Alpha\(Opacity\=/i', 'alpha(opacity=', $match);
+
+ $this->preserved_tokens[] = $match;
+ return $quote . self::TOKEN . (count($this->preserved_tokens) - 1) . '___' . $quote;
+ }
+
+ private function replace_colon($matches)
+ {
+ return preg_replace('/\:/', self::CLASSCOLON, $matches[0]);
+ }
+
+ private function replace_calc($matches)
+ {
+ $this->preserved_tokens[] = preg_replace('/\s?([\*\/\(\),])\s?/', '$1', $matches[0]);
+ return self::TOKEN . (count($this->preserved_tokens) - 1) . '___';
+ }
+
+ private function rgb_to_hex($matches)
+ {
+ // Support for percentage values rgb(100%, 0%, 45%);
+ if ($this->index_of($matches[1], '%') >= 0){
+ $rgbcolors = explode(',', str_replace('%', '', $matches[1]));
+ for ($i = 0; $i < count($rgbcolors); $i++) {
+ $rgbcolors[$i] = $this->round_number(floatval($rgbcolors[$i]) * 2.55);
+ }
+ } else {
+ $rgbcolors = explode(',', $matches[1]);
+ }
+
+ // Values outside the sRGB color space should be clipped (0-255)
+ for ($i = 0; $i < count($rgbcolors); $i++) {
+ $rgbcolors[$i] = $this->clamp_number(intval($rgbcolors[$i], 10), 0, 255);
+ $rgbcolors[$i] = sprintf("%02x", $rgbcolors[$i]);
+ }
+
+ // Fix for issue #2528093
+ if (!preg_match('/[\s\,\);\}]/', $matches[2])){
+ $matches[2] = ' ' . $matches[2];
+ }
+
+ return '#' . implode('', $rgbcolors) . $matches[2];
+ }
+
+ private function hsl_to_hex($matches)
+ {
+ $values = explode(',', str_replace('%', '', $matches[1]));
+ $h = floatval($values[0]);
+ $s = floatval($values[1]);
+ $l = floatval($values[2]);
+
+ // Wrap and clamp, then fraction!
+ $h = ((($h % 360) + 360) % 360) / 360;
+ $s = $this->clamp_number($s, 0, 100) / 100;
+ $l = $this->clamp_number($l, 0, 100) / 100;
+
+ if ($s == 0) {
+ $r = $g = $b = $this->round_number(255 * $l);
+ } else {
+ $v2 = $l < 0.5 ? $l * (1 + $s) : ($l + $s) - ($s * $l);
+ $v1 = (2 * $l) - $v2;
+ $r = $this->round_number(255 * $this->hue_to_rgb($v1, $v2, $h + (1/3)));
+ $g = $this->round_number(255 * $this->hue_to_rgb($v1, $v2, $h));
+ $b = $this->round_number(255 * $this->hue_to_rgb($v1, $v2, $h - (1/3)));
+ }
+
+ return $this->rgb_to_hex(array('', $r.','.$g.','.$b, $matches[2]));
+ }
+
+ /* HELPERS
+* ---------------------------------------------------------------------------------------------
+*/
+
+ private function hue_to_rgb($v1, $v2, $vh)
+ {
+ $vh = $vh < 0 ? $vh + 1 : ($vh > 1 ? $vh - 1 : $vh);
+ if ($vh * 6 < 1) return $v1 + ($v2 - $v1) * 6 * $vh;
+ if ($vh * 2 < 1) return $v2;
+ if ($vh * 3 < 2) return $v1 + ($v2 - $v1) * ((2/3) - $vh) * 6;
+ return $v1;
+ }
+
+ private function round_number($n)
+ {
+ return intval(floor(floatval($n) + 0.5), 10);
+ }
+
+ private function clamp_number($n, $min, $max)
+ {
+ return min(max($n, $min), $max);
+ }
+
+ /**
+ * PHP port of Javascript's "indexOf" function for strings only
+ * Author: Tubal Martin http://blog.margenn.com
+ *
+ * @param string $haystack
+ * @param string $needle
+ * @param int $offset index (optional)
+ * @return int
+ */
+ private function index_of($haystack, $needle, $offset = 0)
+ {
+ $index = strpos($haystack, $needle, $offset);
+
+ return ($index !== FALSE) ? $index : -1;
+ }
+
+ /**
+ * PHP port of Javascript's "substring" function
+ * Author: Tubal Martin http://blog.margenn.com
+ * Tests: http://margenn.com/tubal/substring/
+ *
+ * @param string $str
+ * @param int $from index
+ * @param int|bool $to index (optional)
+ * @return string
+ */
+ private function substring($str, $from = 0, $to = FALSE)
+ {
+ if ($to !== FALSE) {
+ if ($from == $to || ($from <= 0 && $to < 0)) {
+ return '';
+ }
+
+ if ($from > $to) {
+ $from_copy = $from;
+ $from = $to;
+ $to = $from_copy;
+ }
+ }
+
+ if ($from < 0) {
+ $from = 0;
+ }
+
+ $substring = ($to === FALSE) ? substr($str, $from) : substr($str, $from, $to - $from);
+ return ($substring === FALSE) ? '' : $substring;
+ }
+
+ /**
+ * PHP port of Javascript's "slice" function for strings only
+ * Author: Tubal Martin http://blog.margenn.com
+ * Tests: http://margenn.com/tubal/str_slice/
+ *
+ * @param string $str
+ * @param int $start index
+ * @param int|bool $end index (optional)
+ * @return string
+ */
+ private function str_slice($str, $start = 0, $end = FALSE)
+ {
+ if ($end !== FALSE && ($start < 0 || $end <= 0)) {
+ $max = strlen($str);
+
+ if ($start < 0) {
+ if (($start = $max + $start) < 0) {
+ return '';
+ }
+ }
+
+ if ($end < 0) {
+ if (($end = $max + $end) < 0) {
+ return '';
+ }
+ }
+
+ if ($end <= $start) {
+ return '';
+ }
+ }
+
+ $slice = ($end === FALSE) ? substr($str, $start) : substr($str, $start, $end - $start);
+ return ($slice === FALSE) ? '' : $slice;
+ }
+
+ /**
+ * Convert strings like "64M" or "30" to int values
+ * @param mixed $size
+ * @return int
+ */
+ private function normalize_int($size)
+ {
+ if (is_string($size)) {
+ switch (substr($size, -1)) {
+ case 'M': case 'm': return $size * 1048576;
+ case 'K': case 'k': return $size * 1024;
+ case 'G': case 'g': return $size * 1073741824;
+ }
+ }
+
+ return (int) $size;
+ }
+}
View
121 vendors/minify/lib/DooDigestAuth.php
@@ -0,0 +1,121 @@
+<?php
+/**
+ * DooDigestAuth class file.
+ *
+ * @author Leng Sheng Hong <darkredz@gmail.com>
+ * @link http://www.doophp.com/
+ * @copyright Copyright &copy; 2009 Leng Sheng Hong
+ * @license http://www.doophp.com/license
+ */
+
+/**
+ * Handles HTTP digest authentication
+ *
+ * <p>HTTP digest authentication can be used with the URI router.
+ * HTTP digest is much more recommended over the use of HTTP Basic auth which doesn't provide any encryption.
+ * If you are running PHP on Apache in CGI/FastCGI mode, you would need to
+ * add the following line to your .htaccess for digest auth to work correctly.</p>
+ * <code>RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]</code>
+ *
+ * <p>This class is tested under Apache 2.2 and Cherokee web server. It should work in both mod_php and cgi mode.</p>
+ *
+ * @author Leng Sheng Hong <darkredz@gmail.com>
+ * @version $Id: DooDigestAuth.php 1000 2009-07-7 18:27:22
+ * @package doo.auth
+ * @since 1.0
+ */
+class DooDigestAuth{
+
+ /**
+ * Authenticate against a list of username and passwords.
+ *
+ * <p>HTTP Digest Authentication doesn't work with PHP in CGI mode,
+ * you have to add this into your .htaccess <code>RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]</code></p>
+ *
+ * @param string $realm Name of the authentication session
+ * @param array $users An assoc array of username and password: array('uname1'=>'pwd1', 'uname2'=>'pwd2')
+ * @param string $fail_msg Message to be displayed if the User cancel the login
+ * @param string $fail_url URL to be redirect if the User cancel the login
+ * @return string The username if login success.
+ */
+ public static function http_auth($realm, $users, $fail_msg=NULL, $fail_url=NULL){
+ $realm = "Restricted area - $realm";
+
+ //user => password
+ //$users = array('admin' => '1234', 'guest' => 'guest');
+ if(!empty($_SERVER['REDIRECT_HTTP_AUTHORIZATION']) && strpos($_SERVER['REDIRECT_HTTP_AUTHORIZATION'], 'Digest')===0){
+ $_SERVER['PHP_AUTH_DIGEST'] = $_SERVER['REDIRECT_HTTP_AUTHORIZATION'];
+ }
+
+ if (empty($_SERVER['PHP_AUTH_DIGEST'])) {
+ header('WWW-Authenticate: Digest realm="'.$realm.
+ '",qop="auth",nonce="'.uniqid().'",opaque="'.md5($realm).'"');
+ header('HTTP/1.1 401 Unauthorized');
+ if($fail_msg!=NULL)
+ die($fail_msg);
+ if($fail_url!=NULL)
+ die("<script>window.location.href = '$fail_url'</script>");
+ exit;
+ }
+
+ // analyze the PHP_AUTH_DIGEST variable
+ if (!($data = self::http_digest_parse($_SERVER['PHP_AUTH_DIGEST'])) || !isset($users[$data['username']])){
+ header('WWW-Authenticate: Digest realm="'.$realm.
+ '",qop="auth",nonce="'.uniqid().'",opaque="'.md5($realm).'"');
+ header('HTTP/1.1 401 Unauthorized');
+ if($fail_msg!=NULL)
+ die($fail_msg);
+ if($fail_url!=NULL)
+ die("<script>window.location.href = '$fail_url'</script>");
+ exit;
+ }
+
+ // generate the valid response
+ $A1 = md5($data['username'] . ':' . $realm . ':' . $users[$data['username']]);
+ $A2 = md5($_SERVER['REQUEST_METHOD'].':'.$data['uri']);
+ $valid_response = md5($A1.':'.$data['nonce'].':'.$data['nc'].':'.$data['cnonce'].':'.$data['qop'].':'.$A2);
+
+ if ($data['response'] != $valid_response){
+ header('HTTP/1.1 401 Unauthorized');
+ header('WWW-Authenticate: Digest realm="'.$realm.
+ '",qop="auth",nonce="'.uniqid().'",opaque="'.md5($realm).'"');
+ if($fail_msg!=NULL)
+ die($fail_msg);
+ if($fail_url!=NULL)
+ die("<script>window.location.href = '$fail_url'</script>");
+ exit;
+ }
+
+ // ok, valid username & password
+ return $data['username'];
+ }
+
+ /**
+ * Method to parse the http auth header, works with IE.
+ *
+ * Internet Explorer returns a qop="xxxxxxxxxxx" in the header instead of qop=xxxxxxxxxxx as most browsers do.
+ *
+ * @param string $txt header string to parse
+ * @return array An assoc array of the digest auth session
+ */
+ private static function http_digest_parse($txt)
+ {
+ $res = preg_match("/username=\"([^\"]+)\"/i", $txt, $match);
+ $data['username'] = (isset($match[1]))?$match[1]:null;
+ $res = preg_match('/nonce=\"([^\"]+)\"/i', $txt, $match);
+ $data['nonce'] = $match[1];
+ $res = preg_match('/nc=([0-9]+)/i', $txt, $match);
+ $data['nc'] = $match[1];
+ $res = preg_match('/cnonce=\"([^\"]+)\"/i', $txt, $match);
+ $data['cnonce'] = $match[1];
+ $res = preg_match('/qop=([^,]+)/i', $txt, $match);
+ $data['qop'] = str_replace('"','',$match[1]);
+ $res = preg_match('/uri=\"([^\"]+)\"/i', $txt, $match);
+ $data['uri'] = $match[1];
+ $res = preg_match('/response=\"([^\"]+)\"/i', $txt, $match);
+ $data['response'] = $match[1];
+ return $data;
+ }
+
+
+}
View
1,370 vendors/minify/lib/FirePHP.php
@@ -0,0 +1,1370 @@
+<?php
+/**
+ * *** BEGIN LICENSE BLOCK *****
+ *
+ * This file is part of FirePHP (http://www.firephp.org/).
+ *
+ * Software License Agreement (New BSD License)
+ *
+ * Copyright (c) 2006-2008, Christoph Dorn
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Christoph Dorn nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ***** END LICENSE BLOCK *****
+ *
+ * @copyright Copyright (C) 2007-2008 Christoph Dorn
+ * @author Christoph Dorn <christoph@christophdorn.com>
+ * @license http://www.opensource.org/licenses/bsd-license.php
+ * @package FirePHP
+ */
+
+
+/**
+ * Sends the given data to the FirePHP Firefox Extension.
+ * The data can be displayed in the Firebug Console or in the
+ * "Server" request tab.
+ *
+ * For more information see: http://www.firephp.org/
+ *
+ * @copyright Copyright (C) 2007-2008 Christoph Dorn
+ * @author Christoph Dorn <christoph@christophdorn.com>
+ * @license http://www.opensource.org/licenses/bsd-license.php
+ * @package FirePHP
+ */
+class FirePHP {
+
+ /**
+ * FirePHP version
+ *
+ * @var string
+ */
+ const VERSION = '0.2.0';
+
+ /**
+ * Firebug LOG level
+ *
+ * Logs a message to firebug console.
+ *
+ * @var string
+ */
+ const LOG = 'LOG';
+
+ /**
+ * Firebug INFO level
+ *
+ * Logs a message to firebug console and displays an info icon before the message.
+ *
+ * @var string
+ */
+ const INFO = 'INFO';
+
+ /**
+ * Firebug WARN level
+ *
+ * Logs a message to firebug console, displays an warning icon before the message and colors the line turquoise.
+ *
+ * @var string
+ */
+ const WARN = 'WARN';
+
+ /**
+ * Firebug ERROR level
+ *
+ * Logs a message to firebug console, displays an error icon before the message and colors the line yellow. Also increments the firebug error count.
+ *
+ * @var string
+ */
+ const ERROR = 'ERROR';
+
+ /**
+ * Dumps a variable to firebug's server panel
+ *
+ * @var string
+ */
+ const DUMP = 'DUMP';
+
+ /**
+ * Displays a stack trace in firebug console
+ *
+ * @var string
+ */
+ const TRACE = 'TRACE';
+
+ /**
+ * Displays an exception in firebug console
+ *
+ * Increments the firebug error count.
+ *
+ * @var string
+ */
+ const EXCEPTION = 'EXCEPTION';
+
+ /**
+ * Displays an table in firebug console
+ *
+ * @var string
+ */
+ const TABLE = 'TABLE';
+
+ /**
+ * Starts a group in firebug console
+ *
+ * @var string
+ */
+ const GROUP_START = 'GROUP_START';
+
+ /**
+ * Ends a group in firebug console
+ *
+ * @var string
+ */
+ const GROUP_END = 'GROUP_END';
+
+ /**
+ * Singleton instance of FirePHP
+ *
+ * @var FirePHP
+ */
+ protected static $instance = null;
+
+ /**
+ * Wildfire protocol message index
+ *
+ * @var int
+ */
+ protected $messageIndex = 1;
+
+ /**
+ * Options for the library
+ *
+ * @var array
+ */
+ protected $options = array();
+
+ /**
+ * Filters used to exclude object members when encoding
+ *
+ * @var array
+ */
+ protected $objectFilters = array();
+
+ /**
+ * A stack of objects used to detect recursion during object encoding
+ *
+ * @var object
+ */
+ protected $objectStack = array();
+
+ /**
+ * Flag to enable/disable logging
+ *
+ * @var boolean
+ */
+ protected $enabled = true;
+
+ /**
+ * The object constructor
+ */
+ function __construct() {
+ $this->options['maxObjectDepth'] = 10;
+ $this->options['maxArrayDepth'] = 20;
+ $this->options['useNativeJsonEncode'] = true;
+ $this->options['includeLineNumbers'] = true;
+ }
+
+ /**
+ * When the object gets serialized only include specific object members.
+ *
+ * @return array
+ */
+ public function __sleep() {
+ return array('options','objectFilters','enabled');
+ }
+
+ /**
+ * Gets singleton instance of FirePHP
+ *
+ * @param boolean $AutoCreate
+ * @return FirePHP
+ */
+ public static function getInstance($AutoCreate=false) {
+ if($AutoCreate===true && !self::$instance) {
+ self::init();
+ }
+ return self::$instance;
+ }
+
+ /**
+ * Creates FirePHP object and stores it for singleton access
+ *
+ * @return FirePHP
+ */
+ public static function init() {
+ return self::$instance = new self();
+ }
+
+ /**
+ * Enable and disable logging to Firebug
+ *
+ * @param boolean $Enabled TRUE to enable, FALSE to disable
+ * @return void
+ */
+ public function setEnabled($Enabled) {
+ $this->enabled = $Enabled;
+ }
+
+ /**
+ * Check if logging is enabled
+ *
+ * @return boolean TRUE if enabled
+ */
+ public function getEnabled() {
+ return $this->enabled;
+ }
+
+ /**
+ * Specify a filter to be used when encoding an object
+ *
+ * Filters are used to exclude object members.
+ *
+ * @param string $Class The class name of the object
+ * @param array $Filter An array or members to exclude
+ * @return void
+ */
+ public function setObjectFilter($Class, $Filter) {
+ $this->objectFilters[$Class] = $Filter;
+ }
+
+ /**
+ * Set some options for the library
+ *
+ * Options:
+ * - maxObjectDepth: The maximum depth to traverse objects (default: 10)
+ * - maxArrayDepth: The maximum depth to traverse arrays (default: 20)
+ * - useNativeJsonEncode: If true will use json_encode() (default: true)
+ * - includeLineNumbers: If true will include line numbers and filenames (default: true)
+ *
+ * @param array $Options The options to be set
+ * @return void
+ */
+ public function setOptions($Options) {
+ $this->options = array_merge($this->options,$Options);
+ }
+
+ /**
+ * Register FirePHP as your error handler
+ *
+ * Will throw exceptions for each php error.
+ */
+ public function registerErrorHandler()
+ {
+ //NOTE: The following errors will not be caught by this error handler:
+ // E_ERROR, E_PARSE, E_CORE_ERROR,
+ // E_CORE_WARNING, E_COMPILE_ERROR,
+ // E_COMPILE_WARNING, E_STRICT
+
+ set_error_handler(array($this,'errorHandler'));
+ }
+
+ /**
+ * FirePHP's error handler
+ *
+ * Throws exception for each php error that will occur.
+ *
+ * @param int $errno
+ * @param string $errstr
+ * @param string $errfile
+ * @param int $errline
+ * @param array $errcontext
+ */
+ public function errorHandler($errno, $errstr, $errfile, $errline, $errcontext)
+ {
+ // Don't throw exception if error reporting is switched off
+ if (error_reporting() == 0) {
+ return;
+ }
+ // Only throw exceptions for errors we are asking for
+ if (error_reporting() & $errno) {
+ throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
+ }
+ }
+
+ /**
+ * Register FirePHP as your exception handler
+ */
+ public function registerExceptionHandler()
+ {
+ set_exception_handler(array($this,'exceptionHandler'));
+ }
+
+ /**
+ * FirePHP's exception handler
+ *
+ * Logs all exceptions to your firebug console and then stops the script.
+ *
+ * @param Exception $Exception
+ * @throws Exception
+ */
+ function exceptionHandler($Exception) {
+ $this->fb($Exception);
+ }
+
+ /**
+ * Set custom processor url for FirePHP
+ *
+ * @param string $URL
+ */
+ public function setProcessorUrl($URL)
+ {
+ $this->setHeader('X-FirePHP-ProcessorURL', $URL);
+ }
+
+ /**
+ * Set custom renderer url for FirePHP
+ *
+ * @param string $URL
+ */
+ public function setRendererUrl($URL)
+ {
+ $this->setHeader('X-FirePHP-RendererURL', $URL);
+ }
+
+ /**
+ * Start a group for following messages
+ *
+ * @param string $Name
+ * @return true
+ * @throws Exception
+ */
+ public function group($Name) {
+ return $this->fb(null, $Name, FirePHP::GROUP_START);
+ }
+
+ /**
+ * Ends a group you have started before
+ *
+ * @return true
+ * @throws Exception
+ */
+ public function groupEnd() {
+ return $this->fb(null, null, FirePHP::GROUP_END);
+ }
+
+ /**
+ * Log object with label to firebug console
+ *
+ * @see FirePHP::LOG
+ * @param mixes $Object
+ * @param string $Label
+ * @return true
+ * @throws Exception
+ */
+ public function log($Object, $Label=null) {
+ return $this->fb($Object, $Label, FirePHP::LOG);
+ }
+
+ /**
+ * Log object with label to firebug console
+ *
+ * @see FirePHP::INFO
+ * @param mixes $Object
+ * @param string $Label
+ * @return true
+ * @throws Exception
+ */
+ public function info($Object, $Label=null) {
+ return $this->fb($Object, $Label, FirePHP::INFO);
+ }
+
+ /**
+ * Log object with label to firebug console
+ *
+ * @see FirePHP::WARN
+ * @param mixes $Object
+ * @param string $Label
+ * @return true
+ * @throws Exception
+ */
+ public function warn($Object, $Label=null) {
+ return $this->fb($Object, $Label, FirePHP::WARN);
+ }
+
+ /**
+ * Log object with label to firebug console
+ *
+ * @see FirePHP::ERROR
+ * @param mixes $Object
+ * @param string $Label
+ * @return true
+ * @throws Exception
+ */
+ public function error($Object, $Label=null) {
+ return $this->fb($Object, $Label, FirePHP::ERROR);
+ }
+
+ /**
+ * Dumps key and variable to firebug server panel
+ *
+ * @see FirePHP::DUMP
+ * @param string $Key
+ * @param mixed $Variable
+ * @return true
+ * @throws Exception
+ */
+ public function dump($Key, $Variable) {
+ return $this->fb($Variable, $Key, FirePHP::DUMP);
+ }
+
+ /**
+ * Log a trace in the firebug console
+ *
+ * @see FirePHP::TRACE
+ * @param string $Label
+ * @return true
+ * @throws Exception
+ */
+ public function trace($Label) {
+ return $this->fb($Label, FirePHP::TRACE);
+ }
+
+ /**
+ * Log a table in the firebug console
+ *
+ * @see FirePHP::TABLE
+ * @param string $Label
+ * @param string $Table
+ * @return true
+ * @throws Exception
+ */
+ public function table($Label, $Table) {
+ return $this->fb($Table, $Label, FirePHP::TABLE);
+ }
+
+ /**
+ * Check if FirePHP is installed on client
+ *
+ * @return boolean
+ */
+ public function detectClientExtension() {
+ /* Check if FirePHP is installed on client */
+ if(!@preg_match_all('/\sFirePHP\/([\.|\d]*)\s?/si',$this->getUserAgent(),$m) ||
+ !version_compare($m[1][0],'0.0.6','>=')) {
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Log varible to Firebug
+ *
+ * @see http://www.firephp.org/Wiki/Reference/Fb
+ * @param mixed $Object The variable to be logged
+ * @return true Return TRUE if message was added to headers, FALSE otherwise
+ * @throws Exception
+ */
+ public function fb($Object) {
+
+ if(!$this->enabled) {
+ return false;
+ }
+
+ if (headers_sent($filename, $linenum)) {
+ throw $this->newException('Headers already sent in '.$filename.' on line '.$linenum.'. Cannot send log data to FirePHP. You must have Output Buffering enabled via ob_start() or output_buffering ini directive.');
+ }
+
+ $Type = null;
+ $Label = null;
+
+ if(func_num_args()==1) {
+ } else
+ if(func_num_args()==2) {
+ switch(func_get_arg(1)) {
+ case self::LOG:
+ case self::INFO:
+ case self::WARN:
+ case self::ERROR:
+ case self::DUMP:
+ case self::TRACE:
+ case self::EXCEPTION:
+ case self::TABLE:
+ case self::GROUP_START:
+ case self::GROUP_END:
+ $Type = func_get_arg(1);
+ break;
+ default:
+ $Label = func_get_arg(1);
+ break;
+ }
+ } else
+ if(func_num_args()==3) {
+ $Type = func_get_arg(2);
+ $Label = func_get_arg(1);
+ } else {
+ throw $this->newException('Wrong number of arguments to fb() function!');
+ }
+
+
+ if(!$this->detectClientExtension()) {
+ return false;
+ }
+
+ $meta = array();
+ $skipFinalObjectEncode = false;
+
+ if($Object instanceof Exception) {
+
+ $meta['file'] = $this->_escapeTraceFile($Object->getFile());
+ $meta['line'] = $Object->getLine();
+
+ $trace = $Object->getTrace();
+ if($Object instanceof ErrorException
+ && isset($trace[0]['function'])
+ && $trace[0]['function']=='errorHandler'
+ && isset($trace[0]['class'])
+ && $trace[0]['class']=='FirePHP') {
+
+ $severity = false;
+ switch($Object->getSeverity()) {
+ case E_WARNING: $severity = 'E_WARNING'; break;
+ case E_NOTICE: $severity = 'E_NOTICE'; break;
+ case E_USER_ERROR: $severity = 'E_USER_ERROR'; break;
+ case E_USER_WARNING: $severity = 'E_USER_WARNING'; break;
+ case E_USER_NOTICE: $severity = 'E_USER_NOTICE'; break;
+ case E_STRICT: $severity = 'E_STRICT'; break;
+ case E_RECOVERABLE_ERROR: $severity = 'E_RECOVERABLE_ERROR'; break;
+ case E_DEPRECATED: $severity = 'E_DEPRECATED'; break;
+ case E_USER_DEPRECATED: $severity = 'E_USER_DEPRECATED'; break;
+ }
+
+ $Object = array('Class'=>get_class($Object),
+ 'Message'=>$severity.': '.$Object->getMessage(),
+ 'File'=>$this->_escapeTraceFile($Object->getFile()),
+ 'Line'=>$Object->getLine(),
+ 'Type'=>'trigger',
+ 'Trace'=>$this->_escapeTrace(array_splice($trace,2)));
+ $skipFinalObjectEncode = true;
+ } else {
+ $Object = array('Class'=>get_class($Object),
+ 'Message'=>$Object->getMessage(),
+ 'File'=>$this->_escapeTraceFile($Object->getFile()),
+ 'Line'=>$Object->getLine(),
+ 'Type'=>'throw',
+ 'Trace'=>$this->_escapeTrace($trace));
+ $skipFinalObjectEncode = true;
+ }
+ $Type = self::EXCEPTION;
+
+ } else
+ if($Type==self::TRACE) {
+
+ $trace = debug_backtrace();
+ if(!$trace) return false;
+ for( $i=0 ; $i<sizeof($trace) ; $i++ ) {
+
+ if(isset($trace[$i]['class'])
+ && isset($trace[$i]['file'])
+ && ($trace[$i]['class']=='FirePHP'
+ || $trace[$i]['class']=='FB')
+ && (substr($this->_standardizePath($trace[$i]['file']),-18,18)=='FirePHPCore/fb.php'
+ || substr($this->_standardizePath($trace[$i]['file']),-29,29)=='FirePHPCore/FirePHP.class.php')) {
+ /* Skip - FB::trace(), FB::send(), $firephp->trace(), $firephp->fb() */
+ } else
+ if(isset($trace[$i]['class'])
+ && isset($trace[$i+1]['file'])
+ && $trace[$i]['class']=='FirePHP'
+ && substr($this->_standardizePath($trace[$i+1]['file']),-18,18)=='FirePHPCore/fb.php') {
+ /* Skip fb() */
+ } else
+ if($trace[$i]['function']=='fb'
+ || $trace[$i]['function']=='trace'
+ || $trace[$i]['function']=='send') {
+ $Object = array('Class'=>isset($trace[$i]['class'])?$trace[$i]['class']:'',
+ 'Type'=>isset($trace[$i]['type'])?$trace[$i]['type']:'',
+ 'Function'=>isset($trace[$i]['function'])?$trace[$i]['function']:'',
+ 'Message'=>$trace[$i]['args'][0],
+ 'File'=>isset($trace[$i]['file'])?$this->_escapeTraceFile($trace[$i]['file']):'',
+ 'Line'=>isset($trace[$i]['line'])?$trace[$i]['line']:'',
+ 'Args'=>isset($trace[$i]['args'])?$this->encodeObject($trace[$i]['args']):'',
+ 'Trace'=>$this->_escapeTrace(array_splice($trace,$i+1)));
+
+ $skipFinalObjectEncode = true;
+ $meta['file'] = isset($trace[$i]['file'])?$this->_escapeTraceFile($trace[$i]['file']):'';
+ $meta['line'] = isset($trace[$i]['line'])?$trace[$i]['line']:'';
+ break;
+ }
+ }
+
+ } else
+ if($Type==self::TABLE) {
+
+ if(isset($Object[0]) && is_string($Object[0])) {
+ $Object[1] = $this->encodeTable($Object[1]);
+ } else {
+ $Object = $this->encodeTable($Object);
+ }
+
+ $skipFinalObjectEncode = true;
+
+ } else {
+ if($Type===null) {
+ $Type = self::LOG;
+ }
+ }
+
+ if($this->options['includeLineNumbers']) {
+ if(!isset($meta['file']) || !isset($meta['line'])) {
+
+ $trace = debug_backtrace();
+ for( $i=0 ; $trace && $i<sizeof($trace) ; $i++ ) {
+
+ if(isset($trace[$i]['class'])
+ && isset($trace[$i]['file'])
+ && ($trace[$i]['class']=='FirePHP'
+ || $trace[$i]['class']=='FB')
+ && (substr($this->_standardizePath($trace[$i]['file']),-18,18)=='FirePHPCore/fb.php'
+ || substr($this->_standardizePath($trace[$i]['file']),-29,29)=='FirePHPCore/FirePHP.class.php')) {
+ /* Skip - FB::trace(), FB::send(), $firephp->trace(), $firephp->fb() */
+ } else
+ if(isset($trace[$i]['class'])
+ && isset($trace[$i+1]['file'])
+ && $trace[$i]['class']=='FirePHP'
+ && substr($this->_standardizePath($trace[$i+1]['file']),-18,18)=='FirePHPCore/fb.php') {
+ /* Skip fb() */
+ } else
+ if(isset($trace[$i]['file'])
+ && substr($this->_standardizePath($trace[$i]['file']),-18,18)=='FirePHPCore/fb.php') {
+ /* Skip FB::fb() */
+ } else {
+ $meta['file'] = isset($trace[$i]['file'])?$this->_escapeTraceFile($trace[$i]['file']):'';
+ $meta['line'] = isset($trace[$i]['line'])?$trace[$i]['line']:'';
+ break;
+ }
+ }
+
+ }
+ } else {
+ unset($meta['file']);
+ unset($meta['line']);
+ }
+
+ $this->setHeader('X-Wf-Protocol-1','http://meta.wildfirehq.org/Protocol/JsonStream/0.2');
+ $this->setHeader('X-Wf-1-Plugin-1','http://meta.firephp.org/Wildfire/Plugin/FirePHP/Library-FirePHPCore/'.self::VERSION);
+
+ $structure_index = 1;
+ if($Type==self::DUMP) {
+ $structure_index = 2;
+ $this->setHeader('X-Wf-1-Structure-2','http://meta.firephp.org/Wildfire/Structure/FirePHP/Dump/0.1');
+ } else {
+ $this->setHeader('X-Wf-1-Structure-1','http://meta.firephp.org/Wildfire/Structure/FirePHP/FirebugConsole/0.1');
+ }
+
+ if($Type==self::DUMP) {
+ $msg = '{"'.$Label.'":'.$this->jsonEncode($Object, $skipFinalObjectEncode).'}';
+ } else {
+ $msg_meta = array('Type'=>$Type);
+ if($Label!==null) {
+ $msg_meta['Label'] = $Label;
+ }
+ if(isset($meta['file'])) {
+ $msg_meta['File'] = $meta['file'];
+ }
+ if(isset($meta['line'])) {
+ $msg_meta['Line'] = $meta['line'];
+ }
+ $msg = '['.$this->jsonEncode($msg_meta).','.$this->jsonEncode($Object, $skipFinalObjectEncode).']';
+ }
+
+ $parts = explode("\n",chunk_split($msg, 5000, "\n"));
+
+ for( $i=0 ; $i<count($parts) ; $i++) {
+
+ $part = $parts[$i];
+ if ($part) {
+
+ if(count($parts)>2) {
+ // Message needs to be split into multiple parts
+ $this->setHeader('X-Wf-1-'.$structure_index.'-'.'1-'.$this->messageIndex,
+ (($i==0)?strlen($msg):'')
+ . '|' . $part . '|'
+ . (($i<count($parts)-2)?'\\':''));
+ } else {
+ $this->setHeader('X-Wf-1-'.$structure_index.'-'.'1-'.$this->messageIndex,
+ strlen($part) . '|' . $part . '|');
+ }
+
+ $this->messageIndex++;
+
+ if ($this->messageIndex > 99999) {
+ throw new Exception('Maximum number (99,999) of messages reached!');
+ }
+ }
+ }
+
+ $this->setHeader('X-Wf-1-Index',$this->messageIndex-1);
+
+ return true;
+ }
+
+ /**
+ * Standardizes path for windows systems.
+ *
+ * @param string $Path
+ * @return string
+ */
+ protected function _standardizePath($Path) {
+ return preg_replace('/\\\\+/','/',$Path);
+ }
+
+ /**
+ * Escape trace path for windows systems
+ *
+ * @param array $Trace
+ * @return array
+ */
+ protected function _escapeTrace($Trace) {
+ if(!$Trace) return $Trace;
+ for( $i=0 ; $i<sizeof($Trace) ; $i++ ) {
+ if(isset($Trace[$i]['file'])) {
+ $Trace[$i]['file'] = $this->_escapeTraceFile($Trace[$i]['file']);
+ }
+ if(isset($Trace[$i]['args'])) {
+ $Trace[$i]['args'] = $this->encodeObject($Trace[$i]['args']);
+ }
+ }
+ return $Trace;
+ }
+
+ /**
+ * Escape file information of trace for windows systems
+ *
+ * @param string $File
+ * @return string
+ */
+ protected function _escapeTraceFile($File) {
+ /* Check if we have a windows filepath */
+ if(strpos($File,'\\')) {
+ /* First strip down to single \ */
+
+ $file = preg_replace('/\\\\+/','\\',$File);
+
+ return $file;
+ }
+ return $File;
+ }
+
+ /**
+ * Send header
+ *
+ * @param string $Name
+ * @param string_type $Value
+ */
+ protected function setHeader($Name, $Value) {
+ return header($Name.': '.$Value);
+ }
+
+ /**
+ * Get user agent
+ *
+ * @return string|false
+ */
+ protected function getUserAgent() {
+ if(!isset($_SERVER['HTTP_USER_AGENT'])) return false;
+ return $_SERVER['HTTP_USER_AGENT'];
+ }
+
+ /**
+ * Returns a new exception
+ *
+ * @param string $Message
+ * @return Exception
+ */
+ protected function newException($Message) {
+ return new Exception($Message);
+ }
+
+ /**
+ * Encode an object into a JSON string
+ *
+ * Uses PHP's jeson_encode() if available
+ *
+ * @param object $Object The object to be encoded
+ * @return string The JSON string
+ */
+ protected function jsonEncode($Object, $skipObjectEncode=false)
+ {
+ if(!$skipObjectEncode) {
+ $Object = $this->encodeObject($Object);
+ }
+
+ if(function_exists('json_encode')
+ && $this->options['useNativeJsonEncode']!=false) {
+
+ return json_encode($Object);
+ } else {
+ return $this->json_encode($Object);
+ }
+ }
+
+ /**
+ * Encodes a table by encoding each row and column with encodeObject()
+ *
+ * @param array $Table The table to be encoded
+ * @return array
+ */
+ protected function encodeTable($Table) {
+ if(!$Table) return $Table;
+ for( $i=0 ; $i<count($Table) ; $i++ ) {
+ if(is_array($Table[$i])) {
+ for( $j=0 ; $j<count($Table[$i]) ; $j++ ) {
+ $Table[$i][$j] = $this->encodeObject($Table[$i][$j]);
+ }
+ }
+ }
+ return $Table;
+ }
+
+ /**
+ * Encodes an object including members with
+ * protected and private visibility
+ *
+ * @param Object $Object The object to be encoded
+ * @param int $Depth The current traversal depth
+ * @return array All members of the object
+ */
+ protected function encodeObject($Object, $ObjectDepth = 1, $ArrayDepth = 1)
+ {
+ $return = array();
+
+ if (is_object($Object)) {
+
+ if ($ObjectDepth > $this->options['maxObjectDepth']) {
+ return '** Max Object Depth ('.$this->options['maxObjectDepth'].') **';
+ }
+
+ foreach ($this->objectStack as $refVal) {
+ if ($refVal === $Object) {
+ return '** Recursion ('.get_class($Object).') **';
+ }
+ }
+ array_push($this->objectStack, $Object);
+
+ $return['__className'] = $class = get_class($Object);
+
+ $reflectionClass = new ReflectionClass($class);
+ $properties = array();
+ foreach( $reflectionClass->getProperties() as $property) {
+ $properties[$property->getName()] = $property;
+ }
+
+ $members = (array)$Object;
+
+ foreach( $properties as $raw_name => $property ) {
+
+ $name = $raw_name;
+ if($property->isStatic()) {
+ $name = 'static:'.$name;
+ }
+ if($property->isPublic()) {
+ $name = 'public:'.$name;
+ } else
+ if($property->isPrivate()) {
+ $name = 'private:'.$name;
+ $raw_name = "\0".$class."\0".$raw_name;
+ } else
+ if($property->isProtected()) {
+ $name = 'protected:'.$name;
+ $raw_name = "\0".'*'."\0".$raw_name;
+ }
+
+ if(!(isset($this->objectFilters[$class])
+ && is_array($this->objectFilters[$class])
+ && in_array($raw_name,$this->objectFilters[$class]))) {
+
+ if(array_key_exists($raw_name,$members)
+ && !$property->isStatic()) {
+
+ $return[$name] = $this->encodeObject($members[$raw_name], $ObjectDepth + 1, 1);
+
+ } else {
+ if(method_exists($property,'setAccessible')) {
+ $property->setAccessible(true);
+ $return[$name] = $this->encodeObject($property->getValue($Object), $ObjectDepth + 1, 1);
+ } else
+ if($property->isPublic()) {
+ $return[$name] = $this->encodeObject($property->getValue($Object), $ObjectDepth + 1, 1);
+ } else {
+ $return[$name] = '** Need PHP 5.3 to get value **';
+ }
+ }
+ } else {
+ $return[$name] = '** Excluded by Filter **';
+ }
+ }
+
+ // Include all members that are not defined in the class
+ // but exist in the object
+ foreach( $members as $raw_name => $value ) {
+
+ $name = $raw_name;
+
+ if ($name{0} == "\0") {
+ $parts = explode("\0", $name);
+ $name = $parts[2];
+ }
+
+ if(!isset($properties[$name])) {
+ $name = 'undeclared:'.$name;
+
+ if(!(isset($this->objectFilters[$class])
+ && is_array($this->objectFilters[$class])
+ && in_array($raw_name,$this->objectFilters[$class]))) {
+
+ $return[$name] = $this->encodeObject($value, $ObjectDepth + 1, 1);
+ } else {
+ $return[$name] = '** Excluded by Filter **';
+ }
+ }
+ }
+
+ array_pop($this->objectStack);
+
+ } elseif (is_array($Object)) {
+
+ if ($ArrayDepth > $this->options['maxArrayDepth']) {
+ return '** Max Array Depth ('.$this->options['maxArrayDepth'].') **';
+ }
+
+ foreach ($Object as $key => $val) {
+
+ // Encoding the $GLOBALS PHP array causes an infinite loop
+ // if the recursion is not reset here as it contains
+ // a reference to itself. This is the only way I have come up
+ // with to stop infinite recursion in this case.
+ if($key=='GLOBALS'
+ && is_array($val)
+ && array_key_exists('GLOBALS',$val)) {
+ $val['GLOBALS'] = '** Recursion (GLOBALS) **';
+ }
+
+ $return[$key] = $this->encodeObject($val, 1, $ArrayDepth + 1);
+ }
+ } else {
+ if(self::is_utf8($Object)) {
+ return $Object;
+ } else {
+ return utf8_encode($Object);
+ }
+ }
+ return $return;
+ }
+
+ /**
+ * Returns true if $string is valid UTF-8 and false otherwise.
+ *
+ * @param mixed $str String to be tested
+ * @return boolean
+ */
+ protected static function is_utf8($str) {
+ $c=0; $b=0;
+ $bits=0;
+ $len=strlen($str);
+ for($i=0; $i<$len; $i++){
+ $c=ord($str[$i]);
+ if($c > 128){
+ if(($c >= 254)) return false;
+ elseif($c >= 252) $bits=6;
+ elseif($c >= 248) $bits=5;
+ elseif($c >= 240) $bits=4;
+ elseif($c >= 224) $bits=3;
+ elseif($c >= 192) $bits=2;
+ else return false;
+ if(($i+$bits) > $len) return false;
+ while($bits > 1){
+ $i++;
+ $b=ord($str[$i]);
+ if($b < 128 || $b > 191) return false;
+ $bits--;
+ }
+ }
+ }
+ return true;
+ }
+
+ /**
+ * Converts to and from JSON format.
+ *
+ * JSON (JavaScript Object Notation) is a lightweight data-interchange
+ * format. It is easy for humans to read and write. It is easy for machines
+ * to parse and generate. It is based on a subset of the JavaScript
+ * Programming Language, Standard ECMA-262 3rd Edition - December 1999.
+ * This feature can also be found in Python. JSON is a text format that is
+ * completely language independent but uses conventions that are familiar
+ * to programmers of the C-family of languages, including C, C++, C#, Java,
+ * JavaScript, Perl, TCL, and many others. These properties make JSON an
+ * ideal data-interchange language.
+ *
+ * This package provides a simple encoder and decoder for JSON notation. It
+ * is intended for use with client-side Javascript applications that make
+ * use of HTTPRequest to perform server communication functions - data can
+ * be encoded into JSON notation for use in a client-side javascript, or
+ * decoded from incoming Javascript requests. JSON format is native to
+ * Javascript, and can be directly eval()'ed with no further parsing
+ * overhead
+ *
+ * All strings should be in ASCII or UTF-8 format!
+ *
+ * LICENSE: Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met: Redistributions of source code must retain the
+ * above copyright notice, this list of conditions and the following
+ * disclaimer. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.