BJ Lazy Load - Version 0.6.0

Version Description

Image size adaption. Infinite scroll & WPTouch fixes.

Release Info

Developer	bjornjohansen
Plugin	BJ Lazy Load
Version	0.6.0
Comparing to
See all releases

Code changes from version 0.5.4 to 0.6.0

Files changed (14) hide show

admin.php +47 -10
bj-lazy-load.php +37 -6
cache/index.html +0 -0
img/index.html +0 -0
index.html +0 -0
js/bj-lazy-load.js +25 -2
js/bj-lazy-load.min.js +1 -1
js/index.html +0 -0
js/jquery.sonar.js +421 -0
js/jquery.sonar.min.js +3 -1
readme.txt +18 -6
scb/index.html +0 -0
thumb.php +24 -0
timthumb.php +1251 -0

admin.php CHANGED Viewed

	@@ -12,36 +12,36 @@ class BJLL_Admin_Page extends scbAdminPage {
12	function page_content() {
13
14
15	- ~~echo~~ $~~this->form_table(~~ array(
16	array(
17	'title' => __( 'Apply to content', 'bj_lazy_load' ),
18	'type' => 'radio',
19	'name' => 'filter_content',
20	- 'value' => array( 'yes' => __('Yes', 'bj_lazy_load'), 'no' => __('No', 'bj_lazy_load') ),
21	),
22	array(
23	'title' => __( 'Apply to post thumbnails', 'bj_lazy_load' ),
24	'type' => 'radio',
25	'name' => 'filter_post_thumbnails',
26	- 'value' => array( 'yes' => __('Yes', 'bj_lazy_load'), 'no' => __('No', 'bj_lazy_load') ),
27	),
28	array(
29	'title' => __( 'Apply to gravatars', 'bj_lazy_load' ),
30	'type' => 'radio',
31	'name' => 'filter_gravatars',
32	- 'value' => array( 'yes' => __('Yes', 'bj_lazy_load'), 'no' => __('No', 'bj_lazy_load') ),
33	),
34	array(
35	'title' => __( 'Lazy load images', 'bj_lazy_load' ),
36	'type' => 'radio',
37	'name' => 'lazy_load_images',
38	- 'value' => array( 'yes' => __('Yes', 'bj_lazy_load'), 'no' => __('No', 'bj_lazy_load') ),
39	),
40	array(
41	'title' => __( 'Lazy load iframes', 'bj_lazy_load' ),
42	'type' => 'radio',
43	'name' => 'lazy_load_iframes',
44	- 'value' => array( 'yes' => __('Yes', 'bj_lazy_load'), 'no' => __('No', 'bj_lazy_load') ),
45	),
46	array(
47	'title' => __( 'Theme loader function', 'bj_lazy_load' ),
	@@ -53,15 +53,52 @@ class BJLL_Admin_Page extends scbAdminPage {
53	'title' => __( 'Placeholder Image URL', 'bj_lazy_load' ),
54	'type' => 'text',
55	'name' => 'placeholder_url',
56	- 'desc' => __( 'Leave blank for default', 'bj_lazy_load' ),
57	),
58	array(
59	'title' => __( 'Skip images with classes', 'bj_lazy_load' ),
60	'type' => 'text',
61	'name' => 'skip_classes',
62	- 'desc' => __( 'Comma separated. Example: "no-lazy, lazy-ignore, image-235"', 'bj_lazy_load' ),
63	- ),
64	- ) );





































65
66	}
67


12	function page_content() {
13
14
15	+ $optionfields = array(
16	array(
17	'title' => __( 'Apply to content', 'bj_lazy_load' ),
18	'type' => 'radio',
19	'name' => 'filter_content',
20	+ 'value' => array( 'yes' => __( 'Yes', 'bj_lazy_load' ), 'no' => __( 'No', 'bj_lazy_load' ) ),
21	),
22	array(
23	'title' => __( 'Apply to post thumbnails', 'bj_lazy_load' ),
24	'type' => 'radio',
25	'name' => 'filter_post_thumbnails',
26	+ 'value' => array( 'yes' => __( 'Yes', 'bj_lazy_load' ), 'no' => __( 'No', 'bj_lazy_load' ) ),
27	),
28	array(
29	'title' => __( 'Apply to gravatars', 'bj_lazy_load' ),
30	'type' => 'radio',
31	'name' => 'filter_gravatars',
32	+ 'value' => array( 'yes' => __( 'Yes', 'bj_lazy_load' ), 'no' => __( 'No', 'bj_lazy_load' ) ),
33	),
34	array(
35	'title' => __( 'Lazy load images', 'bj_lazy_load' ),
36	'type' => 'radio',
37	'name' => 'lazy_load_images',
38	+ 'value' => array( 'yes' => __( 'Yes', 'bj_lazy_load' ), 'no' => __( 'No', 'bj_lazy_load' ) ),
39	),
40	array(
41	'title' => __( 'Lazy load iframes', 'bj_lazy_load' ),
42	'type' => 'radio',
43	'name' => 'lazy_load_iframes',
44	+ 'value' => array( 'yes' => __( 'Yes', 'bj_lazy_load' ), 'no' => __( 'No', 'bj_lazy_load' ) ),
45	),
46	array(
47	'title' => __( 'Theme loader function', 'bj_lazy_load' ),

53	'title' => __( 'Placeholder Image URL', 'bj_lazy_load' ),
54	'type' => 'text',
55	'name' => 'placeholder_url',
56	+ 'desc' => sprintf( '<p class="description">%s</p>', __( 'Leave blank for default', 'bj_lazy_load' ) ),
57	),
58	array(
59	'title' => __( 'Skip images with classes', 'bj_lazy_load' ),
60	'type' => 'text',
61	'name' => 'skip_classes',
62	+ 'desc' => sprintf( '<p class="description">%s</p>', __( 'Comma separated. Example: "no-lazy, lazy-ignore, image-235"', 'bj_lazy_load' ) ),
63	+ )
64	+ );
65	+
66	+ $optionfields[] = array(
67	+ 'title' => __( 'Infinite scroll', 'bj_lazy_load' ),
68	+ 'type' => 'radio',
69	+ 'name' => 'infinite_scroll',
70	+ 'value' => array( 'yes' => __( 'Yes', 'bj_lazy_load' ), 'no' => __( 'No', 'bj_lazy_load' ) ),
71	+ 'desc' => sprintf( '<p class="description">%s</p>', __( 'Enable if your theme uses infinite scroll.', 'bj_lazy_load' ) ),
72	+ );
73	+
74	+ $optionfields[] = array(
75	+ 'title' => __( 'Load hiDPI (retina) images', 'bj_lazy_load' ),
76	+ 'type' => 'radio',
77	+ 'name' => 'load_hidpi',
78	+ 'value' => array( 'yes' => __( 'Yes', 'bj_lazy_load' ), 'no' => __( 'No', 'bj_lazy_load' ) ),
79	+ 'desc' => sprintf( '<p class="description">%s</p>', __( 'Will load hiDPI version of the images if the current browser/screen supports them. (Experimental feature. Do NOT enable if you are using a CDN)', 'bj_lazy_load' ) ),
80	+ );
81	+
82	+ $optionfields[] = array(
83	+ 'title' => __( 'Load responsive images', 'bj_lazy_load' ),
84	+ 'type' => 'radio',
85	+ 'name' => 'load_responsive',
86	+ 'value' => array( 'yes' => __( 'Yes', 'bj_lazy_load' ), 'no' => __( 'No', 'bj_lazy_load' ) ),
87	+ 'desc' => sprintf( '<p class="description">%s</p>', __( 'Will load scaled down version of the images if the image is scaled down in the theme. (Experimental feature. Do NOT enable if you are using a CDN)', 'bj_lazy_load' ) ),
88	+ );
89	+
90	+
91	+ if ( function_exists( 'bnc_wptouch_is_mobile' ) ) {
92	+ $optionfields[] = array(
93	+ 'title' => __( 'Disable on WPTouch', 'bj_lazy_load' ),
94	+ 'type' => 'radio',
95	+ 'name' => 'disable_on_wptouch',
96	+ 'value' => array( 'yes' => __( 'Yes', 'bj_lazy_load' ), 'no' => __( 'No', 'bj_lazy_load' ) ),
97	+ 'desc' => sprintf( '<p class="description">%s</p>', __( 'Disables BJ Lazy Load when the WPTouch mobile theme is used', 'bj_lazy_load' ) ),
98	+ );
99	+ }
100	+
101	+ echo $this->form_table( $optionfields );
102
103	}
104

bj-lazy-load.php CHANGED Viewed

	@@ -3,7 +3,7 @@
3	Plugin Name: BJ Lazy Load
4	Plugin URI: http://wordpress.org/extend/plugins/bj-lazy-load/
5	Description: Lazy image loading makes your site load faster and saves bandwidth.
6	- Version: 0.5.4
7	Author: Bjørn Johansen
8	Author URI: http://twitter.com/bjornjohansen
9	License: GPL2
	@@ -31,7 +31,7 @@ require_once( dirname(__FILE__) . '/scb/load.php' );
31	if ( ! class_exists( 'BJLL' ) ) {
32	class BJLL {
33
34	- const version = '0.5.4';
35	protected $_placeholder_url;
36	protected $_skip_classes;
37
	@@ -39,9 +39,14 @@ if ( ! class_exists( 'BJLL' ) ) {
39
40	function __construct() {
41
42	- add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
43
44	$options = self::_get_options();






45
46	$skip_classes = $options->get( 'skip_classes' );
47	if ( strlen( trim( $skip_classes ) ) ) {
	@@ -82,9 +87,32 @@ if ( ! class_exists( 'BJLL' ) ) {
82	if ( $theme_loader_function == 'wp_head' ) {
83	$in_footer = false;
84	}
85	-
86	wp_enqueue_script( 'jquery.sonar', plugins_url( '/js/jquery.sonar.min.js', __FILE__ ), array( 'jquery' ), self::version, $in_footer );
87	- ~~wp_enqueue_script( 'BJLL', plugins_url( '/js/bj-lazy-load.min.js', __FILE__ ), array( 'jquery', 'jquery.sonar' ), self::version, $in_footer );~~























88	}
89
90	static function filter( $content ) {
	@@ -175,7 +203,10 @@ if ( ! class_exists( 'BJLL' ) ) {
175	'lazy_load_iframes' => 'yes',
176	'theme_loader_function' => 'wp_footer',
177	'placeholder_url' => '',
178	- 'skip_classes' => ''



179	) );
180	}
181


3	Plugin Name: BJ Lazy Load
4	Plugin URI: http://wordpress.org/extend/plugins/bj-lazy-load/
5	Description: Lazy image loading makes your site load faster and saves bandwidth.
6	+ Version: 0.6.0
7	Author: Bjørn Johansen
8	Author URI: http://twitter.com/bjornjohansen
9	License: GPL2

31	if ( ! class_exists( 'BJLL' ) ) {
32	class BJLL {
33
34	+ const version = '0.6.0';
35	protected $_placeholder_url;
36	protected $_skip_classes;
37

39
40	function __construct() {
41

42
43	$options = self::_get_options();
44	+
45	+ if ( 'yes' == $options->get( 'disable_on_wptouch' ) && function_exists( 'bnc_wptouch_is_mobile' ) && bnc_wptouch_is_mobile() ) {
46	+ return;
47	+ }
48	+
49	+ add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
50
51	$skip_classes = $options->get( 'skip_classes' );
52	if ( strlen( trim( $skip_classes ) ) ) {

87	if ( $theme_loader_function == 'wp_head' ) {
88	$in_footer = false;
89	}
90	+
91	wp_enqueue_script( 'jquery.sonar', plugins_url( '/js/jquery.sonar.min.js', __FILE__ ), array( 'jquery' ), self::version, $in_footer );
92	+
93	+ if ( SCRIPT_DEBUG ) {
94	+ wp_enqueue_script( 'BJLL', plugins_url( '/js/bj-lazy-load.js', __FILE__ ), array( 'jquery', 'jquery.sonar' ), self::version, $in_footer );
95	+ } else {
96	+ wp_enqueue_script( 'BJLL', plugins_url( '/js/bj-lazy-load.min.js', __FILE__ ), array( 'jquery', 'jquery.sonar' ), self::version, $in_footer );
97	+ }
98	+
99	+ $bjll_options = array();
100	+
101	+ if ( $options->get('load_hidpi') == 'yes' \|\| $options->get('load_responsive') == 'yes' ) {
102	+ $bjll_options['thumb_base'] = plugins_url( '/thumb.php', __FILE__ ) . '?src=';
103	+ $bjll_options['load_hidpi'] = $options->get('load_hidpi');
104	+ $bjll_options['load_responsive'] = $options->get('load_responsive');
105	+ }
106	+
107	+ if ( $options->get('infinite_scroll') == 'yes' ) {
108	+ $bjll_options['infinite_scroll'] = $options->get('infinite_scroll');
109	+ }
110	+
111	+
112	+ if ( count( $bjll_options ) ) {
113	+ wp_localize_script( 'BJLL', 'BJLL', $bjll_options );
114	+ }
115	+
116	}
117
118	static function filter( $content ) {

203	'lazy_load_iframes' => 'yes',
204	'theme_loader_function' => 'wp_footer',
205	'placeholder_url' => '',
206	+ 'skip_classes' => '',
207	+ 'load_hidpi' => 'no',
208	+ 'load_responsive' => 'no',
209	+ 'disable_on_wptouch' => 'no'
210	) );
211	}
212

cache/index.html ADDED Viewed

File without changes

img/index.html ADDED Viewed

File without changes

index.html ADDED Viewed

File without changes

js/bj-lazy-load.js CHANGED Viewed

	@@ -1,15 +1,35 @@



1	(function($) {
2
3	function bj_lazy_load_init() {
4
5	$('.lazy-hidden').not('.data-lazy-ready').one( 'scrollin.bj_lazy_load', { distance: 200 }, function() {
6	-
7	var $el = $( this ),
8	data_lazy_type = $el.attr( 'data-lazy-type' );
9
10	if ( data_lazy_type == 'image' ) {

















11	$el.hide()
12	- .attr( 'src', ~~$el.attr(~~ ~~'data-lazy-src'~~ ) )
13	.removeClass( 'lazy-hidden' )
14	.fadeIn();
15	} else if ( data_lazy_type == 'iframe' ) {
	@@ -80,5 +100,8 @@
80	}
81
82	$( document ).bind( 'ready', bj_lazy_load_init ); // using .on is more efficient, but requires jQuery 1.7



83
84	})(jQuery);


1	+
2	+ var BJLL = BJLL \|\| {};
3	+
4	(function($) {
5
6	function bj_lazy_load_init() {
7
8	$('.lazy-hidden').not('.data-lazy-ready').one( 'scrollin.bj_lazy_load', { distance: 200 }, function() {
9	+
10	var $el = $( this ),
11	data_lazy_type = $el.attr( 'data-lazy-type' );
12
13	if ( data_lazy_type == 'image' ) {
14	+
15	+ var imgurl = $el.attr( 'data-lazy-src' );
16	+
17	+ if ( BJLL.load_responsive == 'yes' \|\| BJLL.load_hidpi == 'yes' ) {
18	+ var l = document.createElement( 'a' );
19	+ l.href = $el.attr( 'data-lazy-src' );
20	+
21	+ if ( ! l.hostname.length \|\| l.hostname == window.location.hostname ) {
22	+ var loadimgwidth = parseInt( $el.css( 'width' ) );
23	+ if ( window.devicePixelRatio > 1 && BJLL.load_hidpi == 'yes' ) {
24	+ loadimgwidth = Math.ceil( window.devicePixelRatio * loadimgwidth );
25	+ }
26	+ imgurl = BJLL.thumb_base + escape( $el.attr( 'data-lazy-src' ) ) + '&w=' + loadimgwidth;
27	+ }
28	+
29	+ }
30	+
31	$el.hide()
32	+ .attr( 'src', imgurl )
33	.removeClass( 'lazy-hidden' )
34	.fadeIn();
35	} else if ( data_lazy_type == 'iframe' ) {

100	}
101
102	$( document ).bind( 'ready', bj_lazy_load_init ); // using .on is more efficient, but requires jQuery 1.7
103	+ if ( BJLL.infinite_scroll == 'yes' ) {
104	+ $( window ).bind( 'scroll', bj_lazy_load_init ); // using .on is more efficient, but requires jQuery 1.7
105	+ }
106
107	})(jQuery);

js/bj-lazy-load.min.js CHANGED Viewed

@@ -1 +1 @@

- (function(a){function b(){a(".lazy-hidden").not(".data-lazy-ready").one("scrollin.bj_lazy_load",{distance:200},function(){var b=a(this),d=b.attr("data-lazy-type");if(d=="image"){b.~~hide~~().attr("src",b.attr("data-lazy-src")).removeClass("lazy-hidden").fadeIn()}else if(d=="iframe"){b.replaceWith(c(b.attr("data-lazy-src")))}}).addClass("data-lazy-ready")}function c(a){var b="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";var c,d,e,f,g,h,i,j,k=0,l=0,m="",n=[];if(!a){return a}a+="";do{f=b.indexOf(a.charAt(k++));g=b.indexOf(a.charAt(k++));h=b.indexOf(a.charAt(k++));i=b.indexOf(a.charAt(k++));j=f<<18|g<<12|h<<6|i;c=j>>16&255;d=j>>8&255;e=j&255;if(h==64){n[l++]=String.fromCharCode(c)}else if(i==64){n[l++]=String.fromCharCode(c,d)}else{n[l++]=String.fromCharCode(c,d,e)}}while(k<a.length);m=n.join("");return m}a(document).bind("ready",b)})(jQuery)

+ var BJLL=BJLL||{};(function(e){function t(){e(".lazy-hidden").not(".data-lazy-ready").one("scrollin.bj_lazy_load",{distance:200},function(){var t=e(this),r=t.attr("data-lazy-type");if(r=="image"){var i=t.attr("data-lazy-src");if(BJLL.load_responsive=="yes"||BJLL.load_hidpi=="yes"){var s=document.createElement("a");s.href=t.attr("data-lazy-src");if(!s.hostname.length||s.hostname==window.location.hostname){var o=parseInt(t.css("width"));if(window.devicePixelRatio>1&&BJLL.load_hidpi=="yes"){o=Math.ceil(window.devicePixelRatio*o)}i=BJLL.thumb_base+escape(t.attr("data-lazy-src"))+"&w="+o}}t.hide().attr("src",i).removeClass("lazy-hidden").fadeIn()}else if(r=="iframe"){t.replaceWith(n(t.attr("data-lazy-src")))}}).addClass("data-lazy-ready")}function n(e){var t="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";var n,r,i,s,o,u,a,f,l=0,c=0,h="",p=[];if(!e){return e}e+="";do{s=t.indexOf(e.charAt(l++));o=t.indexOf(e.charAt(l++));u=t.indexOf(e.charAt(l++));a=t.indexOf(e.charAt(l++));f=s<<18|o<<12|u<<6|a;n=f>>16&255;r=f>>8&255;i=f&255;if(u==64){p[c++]=String.fromCharCode(n)}else if(a==64){p[c++]=String.fromCharCode(n,r)}else{p[c++]=String.fromCharCode(n,r,i)}}while(l<e.length);h=p.join("");return h}e(document).bind("ready",t);if(BJLL.infinite_scroll=="yes"){e(window).bind("scroll",t)}})(jQuery)

js/index.html ADDED Viewed

File without changes

js/jquery.sonar.js ADDED Viewed

	@@ -0,0 +1,421 @@


1	+ /*
2	+ An elem for determining if an elem is within a certain
3	+ distance from the edge above or below the screen, and attaching
4	+ a function to execute once the elem is in view.
5	+
6	+ General Usage:
7	+
8	+ * Place the library anywhere in your JavaScript code before you
9	+ intend to call the function.
10	+
11	+ * To initialize Sonar with a different default distance, modify
12	+ the sonar = Sonar() line immediately following the Sonar
13	+ library definition. Example:
14	+
15	+ sonar=Sonar(100); // Initializes Sonar with a 100px default distance.
16	+
17	+ Note:
18	+
19	+ * The default distance is 0 pixels.
20	+
21	+
22	+ sonar.detect() Usage
23	+
24	+ * Use sonar.detect(elem, distance) to check if the
25	+ elem is within screen boundaries.
26	+
27	+ @elem - The elem you want to detect visibility.
28	+ @distance - The distance from the screen edge that should
29	+ count in the check. Uses default distance if not specified.
30	+
31	+ * Note: sonar.detect() adds a property to
32	+ ojbects called sonarElemTop. Test to ensure there
33	+ aren't any conflicts with your code. If there
34	+ are, rename sonarElemTop to something else in the code.
35	+
36	+ * sonar.detect() returns:
37	+ true if the elem is within the screen boundaries
38	+ false if th elem is out of the screen boundaries
39	+
40	+ Example:
41	+
42	+ Here's how to check if an advertisment is visible on a
43	+ page that has the id, "ad".
44	+
45	+ if (sonar.detect(document.getElementById("ad")))
46	+ {
47	+ alert('The ad is visible on screen!');
48	+ }
49	+ else
50	+ {
51	+ alert ('The ad is not on screen!);
52	+ }
53	+
54	+ sonar.add() Usage
55	+
56	+ * This method stores elems that are then polled
57	+ on user scroll by the Sonar.detect() method.
58	+
59	+ * Polling initializes once the sonar.add() method is passed
60	+ an elem with the following properties:
61	+
62	+ obj : A reference to the elem to observe until it is within
63	+ the specified distance (px).
64	+
65	+ id : An alternative to the obj parameter, an "id" can be used
66	+ to grab the elem to observe.
67	+
68	+ call: The function to call when the elem is within the
69	+ specified distance (px). The @elem argument will
70	+ include the elem that triggered the callback.
71	+
72	+ px : The specified distance to include as being visible on
73	+ screen. This property is optional (default is 0).
74	+
75	+ Example:
76	+
77	+ sonar.add(
78	+ {
79	+ obj: document.getElementById("0026-get-out-the-way"),
80	+ call: function(elem) // elem will include the elem that triggered the function.
81	+ {
82	+ swfelem.embedSWF("../player.swf", "0026-get-out-the-way", "640", "500", "9.0.0",
83	+ {}, {file: "0026-get-out-the-way.flv", fullscreen: true},
84	+ {allowfullscreen: true, allowscriptaccess: "always"});
85	+ },
86	+ px: 400
87	+ });
88	+
89	+ You can also specify an id tag to be grabbed instead of the elem:
90	+
91	+ sonar.add(
92	+ {
93	+ id: "0026-get-out-the-way",
94	+ call: function(elem) // elem will include the elem that triggered the function.
95	+ {
96	+ swfelem.embedSWF("../player.swf", "0026-get-out-the-way", "640", "500", "9.0.0",
97	+ {}, {file: "0026-get-out-the-way.flv", fullscreen: true},
98	+ {allowfullscreen: true, allowscriptaccess: "always"});
99	+ },
100	+ px: 400
101	+ });
102	+
103	+ Notes:
104	+
105	+ * Setting the body or html of your page to 100% will cause sonar to have
106	+ an invalid height calculation in Firefox. It is recommended that you
107	+ do not set this CSS property.
108	+
109	+ Example:
110	+
111	+ html, body {
112	+ height:100%; // Do not do this.
113	+ }
114	+
115	+ * If you want to set the default distance to something other
116	+ than 0, either update the property directly in the code or
117	+ you can do this:
118	+
119	+ sonar.blip.d = 100; // Where 100 = 100 pixels above and below the screen edge.
120	+
121	+ * Sleep well at night knowing Sonar automatically cleans up the
122	+ event listeners on the scroll event once all calls have executed.
123	+
124	+ Code History:
125	+
126	+ v3 :: 8/14/2009 - David Artz (david.artz@corp.aol.com)
127	+ * Fixed a bug in the polling code where splicing caused our
128	+ for loop to skip over the next iteration in the loop. This
129	+ caused some images in the poll to be detected when they
130	+ should have been.
131	+ * Re-factored Sonar to use the "Module" JavaScript library
132	+ pattern, making our private variables and functions more
133	+ private and inaccessible from the public interface.
134	+ * Updated the sonar.add() function to return true or false,
135	+ useful for determining if Sonar added the elem to the
136	+ poll or executed its callback immediately.
137	+
138	+ v2 :: 3/24/2009 - David Artz (david.artz@corp.aol.com)
139	+ * Added support for IE 8.
140	+ * Updated the way scroll top and screen height are detected, now
141	+ works in IE/FF/Safari quirks mode.
142	+ * Added null check for IE, it was polling for an elem that had recently
143	+ been spliced out of the array. Nasty.
144	+ * Modified for loop to use standard syntax. for (i in x) is known to be
145	+ buggy with JS frameworks that override arrays.
146	+ * Added sonar.b property to cache the body element (improving lookup time).
147	+
148	+ v1 :: 11/18/2008 - David Artz (david.artz@corp.aol.com)
149	+ * Officially released code for general use.
150	+
151	+ */
152	+
153	+ (function( $, win, doc, undefined ){
154	+
155	+ $.fn.sonar = function( distance, full ){
156	+ // No callbacks, return the results from Sonar for
157	+ // the first element in the stack.
158	+ if ( typeof distance === "boolean" ) {
159	+ full = distance;
160	+ distance = undefined;
161	+ }
162	+
163	+ return $.sonar( this[0], distance, full );
164	+ };
165	+
166	+ var body = doc.body,
167	+ $win = $(win),
168	+
169	+ onScreenEvent = "scrollin",
170	+ offScreenEvent = "scrollout",
171	+
172	+ detect = function( elem, distance, full ){
173	+
174	+ if ( elem ) {
175	+
176	+ // Cache the body elem in our private global.
177	+ body \|\| ( body = doc.body );
178	+
179	+ var parentElem = elem, // Clone the elem for use in our loop.
180	+
181	+ elemTop = 0, // The resets the calculated elem top to 0.
182	+
183	+ // Used to recalculate elem.sonarElemTop if body height changes.
184	+ bodyHeight = body.offsetHeight,
185	+
186	+ // NCZ: I don't think you need innerHeight, I believe all major browsers support clientHeight.
187	+ screenHeight = win.innerHeight \|\| doc.documentElement.clientHeight \|\| body.clientHeight \|\| 0, // Height of the screen.
188	+
189	+ // NCZ: I don't think you need pageYOffset, I believe all major browsers support scrollTop.
190	+ scrollTop = doc.documentElement.scrollTop \|\| win.pageYOffset \|\| body.scrollTop \|\| 0, // How far the user scrolled down.
191	+ elemHeight = elem.offsetHeight \|\| 0; // Height of the element.
192	+
193	+ // If our custom "sonarTop" variable is undefined, or the document body
194	+ // height has changed since the last time we ran sonar.detect()...
195	+ if ( !elem.sonarElemTop \|\| elem.sonarBodyHeight !== bodyHeight ) {
196	+
197	+ // Loop through the offsetParents to calculate it.
198	+ if ( parentElem.offsetParent ) {
199	+ do {
200	+ elemTop += parentElem.offsetTop;
201	+ }
202	+ while ( parentElem = parentElem.offsetParent );
203	+ }
204	+
205	+ // Set the custom property (sonarTop) to avoid future attempts to calculate
206	+ // the distance on this elem from the top of the page.
207	+ elem.sonarElemTop = elemTop;
208	+
209	+ // Along the same lines, store the body height when we calculated
210	+ // the elem's top.
211	+ elem.sonarBodyHeight = bodyHeight;
212	+ }
213	+
214	+ // If no distance was given, assume 0.
215	+ distance = distance === undefined ? 0 : distance;
216	+
217	+ // Dump all calculated variables.
218	+ /*
219	+ console.dir({
220	+ elem: elem,
221	+ sonarElemTop: elem.sonarElemTop,
222	+ elemHeight: elemHeight,
223	+ scrollTop: scrollTop,
224	+ screenHeight: screenHeight,
225	+ distance: distance,
226	+ full: full
227	+ });
228	+ */
229	+
230	+ // If elem bottom is above the screen top and
231	+ // the elem top is below the screen bottom, it's false.
232	+ // If full is specified, it si subtracted or added
233	+ // as needed from the element's height.
234	+ return (!(elem.sonarElemTop + (full ? 0 : elemHeight) < scrollTop - distance) &&
235	+ !(elem.sonarElemTop + (full ? elemHeight : 0) > scrollTop + screenHeight + distance));
236	+ }
237	+ },
238	+
239	+ // Container for elems needing to be polled.
240	+ pollQueue = {},
241	+
242	+ // Indicates if scroll events are bound to the poll.
243	+ pollActive = 0,
244	+
245	+ // Used for debouncing.
246	+ pollId,
247	+
248	+ // Function that handles polling when the user scrolls.
249	+ poll = function(){
250	+
251	+ // Debouncing speed optimization. Essentially prevents
252	+ // poll requests from queue'ing up and overloading
253	+ // the scroll event listener.
254	+ pollId && clearTimeout( pollId );
255	+ pollId = setTimeout(function(){
256	+
257	+ var elem,
258	+ elems,
259	+ screenEvent,
260	+ options,
261	+ detected,
262	+ i, l;
263	+
264	+ for ( screenEvent in pollQueue ) {
265	+
266	+ elems = pollQueue[ screenEvent ];
267	+
268	+ for (i = 0, l = elems.length; i < l; i++) {
269	+
270	+ options = elems[i];
271	+ elem = options.elem;
272	+
273	+ // console.log("Polling " + elem.id);
274	+
275	+ detected = detect( elem, options.px, options.full );
276	+
277	+ // If the elem is not detected (offscreen) or detected (onscreen)
278	+ // remove the elem from the queue and fire the callback.
279	+ if ( screenEvent === offScreenEvent ? !detected : detected ) {
280	+ // // console.log(screenEvent);
281	+ if (!options.tr) {
282	+
283	+ if ( elem[ '_' + screenEvent ] ) {
284	+ // console.log("triggered:" + elem.id);
285	+ // Trigger the onscreen or offscreen event depending
286	+ // on the desired event.
287	+ $(elem).trigger( screenEvent );
288	+
289	+ options.tr = 1;
290	+
291	+ // removeSonar was called on this element, clean it up
292	+ // instead of triggering the event.
293	+ } else {
294	+ // console.log("Deleting " + elem.id);
295	+
296	+ // Remove this object from the elem poll container.
297	+ elems.splice(i, 1);
298	+
299	+ // Decrement the counter and length because we just removed
300	+ // one from it.
301	+ i--;
302	+ l--;
303	+ }
304	+ }
305	+ } else {
306	+ options.tr = 0;
307	+ }
308	+ }
309	+ }
310	+
311	+ }, 0 ); // End setTimeout performance tweak.
312	+ },
313	+
314	+ removeSonar = function( elem, screenEvent ){
315	+ // console.log("Removing " + elem.id);
316	+ elem[ '_' + screenEvent ] = 0;
317	+ },
318	+
319	+ addSonar = function( elem, options ) {
320	+ // console.log("Really adding " + elem.id);
321	+ // Prepare arguments.
322	+ var distance = options.px,
323	+ full = options.full,
324	+ screenEvent = options.evt,
325	+ parent = win, // Getting ready to accept parents: options.parent \|\| win,
326	+ detected = detect( elem, distance, full /, parent / ),
327	+ triggered = 0;
328	+
329	+ elem[ '_' + screenEvent ] = 1;
330	+
331	+ // If the elem is not detected (offscreen) or detected (onscreen)
332	+ // trigger the event and fire the callback immediately.
333	+ if ( screenEvent === offScreenEvent ? !detected : detected ) {
334	+ // console.log("Triggering " + elem.id + " " + screenEvent );
335	+ // Trigger the onscreen event at the next possible cycle.
336	+ // Artz: Ask the jQuery team why I needed to do this.
337	+ setTimeout(function(){
338	+ $(elem).trigger( screenEvent === offScreenEvent ? offScreenEvent : onScreenEvent );
339	+ }, 0);
340	+ triggered = 1;
341	+ // Otherwise, add it to the polling queue.
342	+ }
343	+
344	+ // console.log("Adding " + elem.id + " to queue.");
345	+ // Push the element and its callback into the poll queue.
346	+ pollQueue[ screenEvent ].push({
347	+ elem: elem,
348	+ px: distance,
349	+ full: full,
350	+ tr: triggered/* ,
351	+ parent: parent */
352	+ });
353	+
354	+ // Activate the poll if not currently activated.
355	+ if ( !pollActive ) {
356	+ $win.bind( "scroll", poll );
357	+ pollActive = 1;
358	+ }
359	+
360	+
361	+ // Call the prepare function if there, used to
362	+ // prepare the element if we detected it.
363	+ // Artz: Not implemented yet...used to preprocess elements in same loop.
364	+ /*
365	+ if ( prepCallback ) {
366	+ prepCallback.call( elem, elem, detected );
367	+ }
368	+ */
369	+ };
370	+
371	+ // Open sonar function up to the public.
372	+ $.sonar = detect;
373	+
374	+ pollQueue[ onScreenEvent ] = [];
375	+ $.event.special[ onScreenEvent ] = {
376	+
377	+ add: function( handleObj ) {
378	+ var data = handleObj.data \|\| {},
379	+ elem = this;
380	+
381	+ if (!elem[onScreenEvent]){
382	+ addSonar(this, {
383	+ px: data.distance,
384	+ full: data.full,
385	+ evt: onScreenEvent /*,
386	+ parent: data.parent */
387	+ });
388	+ }
389	+ },
390	+
391	+ remove: function( handleObj ) {
392	+ removeSonar( this, onScreenEvent );
393	+ }
394	+
395	+ };
396	+
397	+ pollQueue[ offScreenEvent ] = [];
398	+ $.event.special[ offScreenEvent ] = {
399	+
400	+ add: function( handleObj ) {
401	+
402	+ var data = handleObj.data \|\| {},
403	+ elem = this;
404	+
405	+ if (!elem[offScreenEvent]){
406	+ addSonar(elem, {
407	+ px: data.distance,
408	+ full: data.full,
409	+ evt: offScreenEvent /*,
410	+ parent: data.parent */
411	+ });
412	+ }
413	+ },
414	+
415	+ remove: function( handleObj ) {
416	+ removeSonar( this, offScreenEvent );
417	+ }
418	+ };
419	+
420	+ // console.log(pollQueue);
421	+ })( jQuery, window, document );

js/jquery.sonar.min.js CHANGED Viewed

	@@ -1 +1,3 @@
1	- (function(e,h,l,c){e.fn.sonar=function(o,n){~~if(typeof o===~~"boolean"~~){n~~=o;~~o=c}~~return e.sonar(this[0],o,n)};var f=l.body,a=~~"scrollin",~~m~~="scrollout"~~,b=function(r,n,t){if(r){f\|\|(f=l.body);var s=r,u=0,v=f.offsetHeight,o=h.innerHeight\|\|l.documentElement.clientHeight\|\|f.clientHeight\|\|0,q=l.documentElement.scrollTop\|\|h.pageYOffset\|\|f.scrollTop\|\|0,p=r.offsetHeight\|\|0;if(!r.sonarElemTop\|\|r.sonarBodyHeight!==v){if(s.offsetParent){do{u+=s.offsetTop}while(s=s.offsetParent)}r.sonarElemTop=u;r.sonarBodyHeight=v}n=n===c?0:n;return(!(r.sonarElemTop+(t?0:p)<q-n)&&!(r.sonarElemTop+(t?p:0)>q+o+n))}},d={},j=0,i=function(){setTimeout(function(){var s,o,t,q,p,r,n;for(t in d){o=d[t];for(r=0,n=o.length;r<n;r++){q=o[r];s=q.elem;p=b~~(s,q.px,q.full);if(t===m?!p:p){if(!q.tr){if(s[t]){e(s).trigger(t);q.tr~~=~~1}else{o.splice(r,1);r--;n--}}}else{q.tr=0}}}},25)},k=function(n,o){n[o]=0},g=function(r,p){var t=p.px,q=p.full,s=p.evt,o=~~b~~(r,t,q),n=0;r[s]=1;if(s~~===~~m?!~~o~~:o){setTimeout(function(){e(r).trigger(s===m~~?~~m:a)},~~0~~);n=1}d[s].push({elem~~:~~r,px:t,full:q,tr:n});if(!j){e(h).bind("scroll",i);j=1}};e.sonar=~~b;~~d[a]=[];e.event.special[a]={add:function(n){var p=n.data\|\|{},o=this;if(~~!~~o[a]){g~~(~~this,{px:p.distance,full:p.full,evt:~~a~~})}},remove:function(n){k(this,a)}};d[m]=[];e~~.~~event.special[m]={add:function(n){var p=n.data\|\|{},o=this;if(!o[m]){g(o,{px:p.distance,full:p.full,evt:m})}},remove:function(n){k(this,m)}}})(jQuery,window,document);~~


1	+ (function(g,m,l,o){g.fn.sonar=function(a,b){"boolean"===typeof a&&(b=a,a=o);return g.sonar(this[0],a,b)};var k=l.body,r=g(m),j=function(a,b,f){if(a){k\|\|(k=l.body);var c=a,d=0,e=k.offsetHeight,g=m.innerHeight\|\|l.documentElement.clientHeight\|\|k.clientHeight\|\|0,h=l.documentElement.scrollTop\|\|m.pageYOffset\|\|k.scrollTop\|\|0,j=a.offsetHeight\|\|0;if(!a.sonarElemTop\|\|a.sonarBodyHeight!==e){if(c.offsetParent){do d+=c.offsetTop;while(c=c.offsetParent)}a.sonarElemTop=d;a.sonarBodyHeight=e}b=b===o?0:b;return!(a.sonarElemTop+
2	+ (f?0:j)<h-b)&&!(a.sonarElemTop+(f?j:0)>h+g+b)}},h={},p=0,n,s=function(){n&&clearTimeout(n);n=setTimeout(function(){var a,b,f,c,d,e,i;for(f in h){b=h[f];for(e=0,i=b.length;e<i;e++)if(c=b[e],a=c.elem,d=j(a,c.px,c.full),"scrollout"===f?!d:d){if(!c.tr)a["_"+f]?(g(a).trigger(f),c.tr=1):(b.splice(e,1),e--,i--)}else c.tr=0}},0)},q=function(a,b){var f=b.px,c=b.full,d=b.evt,e=j(a,f,c),i=0;a["_"+d]=1;if("scrollout"===d?!e:e)setTimeout(function(){g(a).trigger("scrollout"===d?"scrollout":"scrollin")},0),i=1;
3	+ h[d].push({elem:a,px:f,full:c,tr:i});p\|\|(r.bind("scroll",s),p=1)};g.sonar=j;h.scrollin=[];g.event.special.scrollin={add:function(a){a=a.data\|\|{};this.scrollin\|\|q(this,{px:a.distance,full:a.full,evt:"scrollin"})},remove:function(){this._scrollin=0}};h.scrollout=[];g.event.special.scrollout={add:function(a){a=a.data\|\|{};this.scrollout\|\|q(this,{px:a.distance,full:a.full,evt:"scrollout"})},remove:function(){this._scrollout=0}}})(jQuery,window,document);

readme.txt CHANGED Viewed

	@@ -1,11 +1,11 @@
1	=== BJ Lazy Load ===
2	Contributors: bjornjohansen
3	Donate link: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=NLUWR4SHCJRBJ
4	- Tags: images, iframes, lazy loading, jquery, javascript, optimize, performance, bandwidth
5	Author URI: http://twitter.com/bjornjohansen
6	Requires at least: 3.3
7	Tested up to: 3.5
8	- Stable tag: 0.5.4
9
10	Lazy loading makes your site load faster and saves bandwidth. Uses jQuery and degrades gracefully for non-js users. Works with both images and iframes.
11
	@@ -18,9 +18,10 @@ You can also lazy load other images and iframes in your theme, by using a simple
18
19	Non-javascript visitors gets the original element in noscript.
20
21	- = ~~Coming~~ ~~soon~~ =
22	- * ~~Serving~~ ~~size~~ ~~optimized~~ images ~~for~~ responsive ~~design/adaptive layout~~
23	- * (~~Got~~ ~~more~~ ~~ideas?~~ ~~Tell me!~~)

24
25	== Installation ==
26	1. Download and unzip plugin
	@@ -46,7 +47,8 @@ No worries. They get the original element in a noscript element. No Lazy Loading
46	The included JavaScript is tested in Firefox 2+, Safari 3+, Opera 9+, Chrome 5+, Internet Explorer 6+
47
48	= I'm using a CDN. Will this plugin interfere? =
49	- ~~Nope~~. The images will still load from your CDN.

50
51	= The plugin doesn't work/doesn't replace my images =
52	Probably, your theme does not call wp_footer(). Edit the plugin settings to load in wp_head() instead.
	@@ -56,6 +58,13 @@ Check your HTML source or see the magic at work in Web Inspector, FireBug or sim
56
57	== Changelog ==
58







59	= Version 0.5.4 =
60	* Possible to skip lazy loading of certain images with specified classnames
61	* Made the placeholder image override an option setting in wp-admin
	@@ -126,6 +135,9 @@ Check your HTML source or see the magic at work in Web Inspector, FireBug or sim
126
127	== Upgrade Notice ==
128



129	= 0.5.4 =
130	Custom placeholder. Skip selected images.
131


1	=== BJ Lazy Load ===
2	Contributors: bjornjohansen
3	Donate link: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=NLUWR4SHCJRBJ
4	+ Tags: images, iframes, lazy loading, jquery, javascript, optimize, performance, bandwidth, responsive design, hidpi, retina
5	Author URI: http://twitter.com/bjornjohansen
6	Requires at least: 3.3
7	Tested up to: 3.5
8	+ Stable tag: 0.6.0
9
10	Lazy loading makes your site load faster and saves bandwidth. Uses jQuery and degrades gracefully for non-js users. Works with both images and iframes.
11

18
19	Non-javascript visitors gets the original element in noscript.
20
21	+ = Size optimized images =
22	+ * Automaticly serve scaled down images in responsive designs
23	+ * Automaticly serve hiDPI images for hiDPI screens (like Apples Retina Display)
24	+
25
26	== Installation ==
27	1. Download and unzip plugin

47	The included JavaScript is tested in Firefox 2+, Safari 3+, Opera 9+, Chrome 5+, Internet Explorer 6+
48
49	= I'm using a CDN. Will this plugin interfere? =
50	+ Lazy loading works just fine. The images will still load from your CDN.
51	+ As of version 0.6.0, Serving responsive and hiDPI images will not work if you're using a CDN. Pull zones will be supported in the near future.
52
53	= The plugin doesn't work/doesn't replace my images =
54	Probably, your theme does not call wp_footer(). Edit the plugin settings to load in wp_head() instead.

58
59	== Changelog ==
60
61	+ = Version 0.6.0 =
62	+ * Optionally serving size optimized images for responsive design/adaptive layout
63	+ * Optionally serving hiDPI images (retina support)
64	+ * Option to disable BJ Lazy Load for WPTouch
65	+ * Fixed issue with infinite scroll (must be enabled on options screen)
66	+ * Upgraded jQuery.sonar to latest version
67	+
68	= Version 0.5.4 =
69	* Possible to skip lazy loading of certain images with specified classnames
70	* Made the placeholder image override an option setting in wp-admin

135
136	== Upgrade Notice ==
137
138	+ = 0.6.0 =
139	+ Image size adaption. Infinite scroll & WPTouch fixes.
140	+
141	= 0.5.4 =
142	Custom placeholder. Skip selected images.
143

scb/index.html ADDED Viewed

File without changes

thumb.php ADDED Viewed

	@@ -0,0 +1,24 @@


1	+ <?php
2	+
3	+ /*
4	+
5	+ Yeah, we're using TimThumb!
6	+
7	+ Are you worried about the security because you heard that TimThumb is unsecure?
8	+ There was a major security flaw published in August 2011. Since then, TimThumb got rewritten from the ground up with version 2.0.
9	+
10	+ References:
11	+ Mark Maunder who rewrote TimThumb as WordThumb: http://markmaunder.com/2011/08/04/a-secure-rewrite-of-timthumb-php-as-wordthumb/
12	+ Matt Mullenweg, creator of WordPress, on the whole issue: http://ma.tt/2011/08/the-timthumb-saga/
13	+
14	+ */
15	+
16	+ define( 'FILE_CACHE_MAX_FILE_AGE', 2592000 );
17	+ define( 'FILE_CACHE_SUFFIX', '.img' );
18	+ define( 'FILE_CACHE_PREFIX', 'thumb' );
19	+ define( 'MAX_FILE_SIZE', 20971520 );
20	+ define( 'BROWSER_CACHE_MAX_AGE', 31536000 );
21	+ define( 'MAX_WIDTH', 3000 );
22	+ define( 'MAX_HEIGHT', 3000 );
23	+
24	+ require( 'timthumb.php' );

timthumb.php ADDED Viewed

	@@ -0,0 +1,1251 @@


1	+ <?php
2	+ /**
3	+ * TimThumb by Ben Gillbanks and Mark Maunder
4	+ * Based on work done by Tim McDaniels and Darren Hoyt
5	+ * http://code.google.com/p/timthumb/
6	+ *
7	+ * GNU General Public License, version 2
8	+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
9	+ *
10	+ * Examples and documentation available on the project homepage
11	+ * http://www.binarymoon.co.uk/projects/timthumb/
12	+ *
13	+ * $Rev$
14	+ */
15	+
16	+ /*
17	+ * --- TimThumb CONFIGURATION ---
18	+ * To edit the configs it is best to create a file called timthumb-config.php
19	+ * and define variables you want to customize in there. It will automatically be
20	+ * loaded by timthumb. This will save you having to re-edit these variables
21	+ * everytime you download a new version
22	+ */
23	+ define ('VERSION', '2.8.11'); // Version of this script
24	+ //Load a config file if it exists. Otherwise, use the values below
25	+ if( file_exists(dirname(__FILE__) . '/timthumb-config.php')) require_once('timthumb-config.php');
26	+ if(! defined('DEBUG_ON') ) define ('DEBUG_ON', false); // Enable debug logging to web server error log (STDERR)
27	+ if(! defined('DEBUG_LEVEL') ) define ('DEBUG_LEVEL', 1); // Debug level 1 is less noisy and 3 is the most noisy
28	+ if(! defined('MEMORY_LIMIT') ) define ('MEMORY_LIMIT', '30M'); // Set PHP memory limit
29	+ if(! defined('BLOCK_EXTERNAL_LEECHERS') ) define ('BLOCK_EXTERNAL_LEECHERS', false); // If the image or webshot is being loaded on an external site, display a red "No Hotlinking" gif.
30	+
31	+ //Image fetching and caching
32	+ if(! defined('ALLOW_EXTERNAL') ) define ('ALLOW_EXTERNAL', TRUE); // Allow image fetching from external websites. Will check against ALLOWED_SITES if ALLOW_ALL_EXTERNAL_SITES is false
33	+ if(! defined('ALLOW_ALL_EXTERNAL_SITES') ) define ('ALLOW_ALL_EXTERNAL_SITES', false); // Less secure.
34	+ if(! defined('FILE_CACHE_ENABLED') ) define ('FILE_CACHE_ENABLED', TRUE); // Should we store resized/modified images on disk to speed things up?
35	+ if(! defined('FILE_CACHE_TIME_BETWEEN_CLEANS')) define ('FILE_CACHE_TIME_BETWEEN_CLEANS', 86400); // How often the cache is cleaned
36	+
37	+ if(! defined('FILE_CACHE_MAX_FILE_AGE') ) define ('FILE_CACHE_MAX_FILE_AGE', 86400); // How old does a file have to be to be deleted from the cache
38	+ if(! defined('FILE_CACHE_SUFFIX') ) define ('FILE_CACHE_SUFFIX', '.timthumb.txt'); // What to put at the end of all files in the cache directory so we can identify them
39	+ if(! defined('FILE_CACHE_PREFIX') ) define ('FILE_CACHE_PREFIX', 'timthumb'); // What to put at the beg of all files in the cache directory so we can identify them
40	+ if(! defined('FILE_CACHE_DIRECTORY') ) define ('FILE_CACHE_DIRECTORY', './cache'); // Directory where images are cached. Left blank it will use the system temporary directory (which is better for security)
41	+ if(! defined('MAX_FILE_SIZE') ) define ('MAX_FILE_SIZE', 10485760); // 10 Megs is 10485760. This is the max internal or external file size that we'll process.
42	+ if(! defined('CURL_TIMEOUT') ) define ('CURL_TIMEOUT', 20); // Timeout duration for Curl. This only applies if you have Curl installed and aren't using PHP's default URL fetching mechanism.
43	+ if(! defined('WAIT_BETWEEN_FETCH_ERRORS') ) define ('WAIT_BETWEEN_FETCH_ERRORS', 3600); // Time to wait between errors fetching remote file
44	+
45	+ //Browser caching
46	+ if(! defined('BROWSER_CACHE_MAX_AGE') ) define ('BROWSER_CACHE_MAX_AGE', 864000); // Time to cache in the browser
47	+ if(! defined('BROWSER_CACHE_DISABLE') ) define ('BROWSER_CACHE_DISABLE', false); // Use for testing if you want to disable all browser caching
48	+
49	+ //Image size and defaults
50	+ if(! defined('MAX_WIDTH') ) define ('MAX_WIDTH', 1500); // Maximum image width
51	+ if(! defined('MAX_HEIGHT') ) define ('MAX_HEIGHT', 1500); // Maximum image height
52	+ if(! defined('NOT_FOUND_IMAGE') ) define ('NOT_FOUND_IMAGE', ''); // Image to serve if any 404 occurs
53	+ if(! defined('ERROR_IMAGE') ) define ('ERROR_IMAGE', ''); // Image to serve if an error occurs instead of showing error message
54	+ if(! defined('PNG_IS_TRANSPARENT') ) define ('PNG_IS_TRANSPARENT', FALSE); // Define if a png image should have a transparent background color. Use False value if you want to display a custom coloured canvas_colour
55	+ if(! defined('DEFAULT_Q') ) define ('DEFAULT_Q', 90); // Default image quality. Allows overrid in timthumb-config.php
56	+ if(! defined('DEFAULT_ZC') ) define ('DEFAULT_ZC', 1); // Default zoom/crop setting. Allows overrid in timthumb-config.php
57	+ if(! defined('DEFAULT_F') ) define ('DEFAULT_F', ''); // Default image filters. Allows overrid in timthumb-config.php
58	+ if(! defined('DEFAULT_S') ) define ('DEFAULT_S', 0); // Default sharpen value. Allows overrid in timthumb-config.php
59	+ if(! defined('DEFAULT_CC') ) define ('DEFAULT_CC', 'ffffff'); // Default canvas colour. Allows overrid in timthumb-config.php
60	+
61	+
62	+ //Image compression is enabled if either of these point to valid paths
63	+
64	+ //These are now disabled by default because the file sizes of PNGs (and GIFs) are much smaller than we used to generate.
65	+ //They only work for PNGs. GIFs and JPEGs are not affected.
66	+ if(! defined('OPTIPNG_ENABLED') ) define ('OPTIPNG_ENABLED', false);
67	+ if(! defined('OPTIPNG_PATH') ) define ('OPTIPNG_PATH', '/usr/bin/optipng'); //This will run first because it gives better compression than pngcrush.
68	+ if(! defined('PNGCRUSH_ENABLED') ) define ('PNGCRUSH_ENABLED', false);
69	+ if(! defined('PNGCRUSH_PATH') ) define ('PNGCRUSH_PATH', '/usr/bin/pngcrush'); //This will only run if OPTIPNG_PATH is not set or is not valid
70	+
71	+ /*
72	+ -------====Website Screenshots configuration - BETA====-------
73	+
74	+ If you just want image thumbnails and don't want website screenshots, you can safely leave this as is.
75	+
76	+ If you would like to get website screenshots set up, you will need root access to your own server.
77	+
78	+ Enable ALLOW_ALL_EXTERNAL_SITES so you can fetch any external web page. This is more secure now that we're using a non-web folder for cache.
79	+ Enable BLOCK_EXTERNAL_LEECHERS so that your site doesn't generate thumbnails for the whole Internet.
80	+
81	+ Instructions to get website screenshots enabled on Ubuntu Linux:
82	+
83	+ 1. Install Xvfb with the following command: sudo apt-get install subversion libqt4-webkit libqt4-dev g++ xvfb
84	+ 2. Go to a directory where you can download some code
85	+ 3. Check-out the latest version of CutyCapt with the following command: svn co https://cutycapt.svn.sourceforge.net/svnroot/cutycapt
86	+ 4. Compile CutyCapt by doing: cd cutycapt/CutyCapt
87	+ 5. qmake
88	+ 6. make
89	+ 7. cp CutyCapt /usr/local/bin/
90	+ 8. Test it by running: xvfb-run --server-args="-screen 0, 1024x768x24" CutyCapt --url="http://markmaunder.com/" --out=test.png
91	+ 9. If you get a file called test.png with something in it, it probably worked. Now test the script by accessing it as follows:
92	+ 10. http://yoursite.com/path/to/timthumb.php?src=http://markmaunder.com/&webshot=1
93	+
94	+ Notes on performance:
95	+ The first time a webshot loads, it will take a few seconds.
96	+ From then on it uses the regular timthumb caching mechanism with the configurable options above
97	+ and loading will be very fast.
98	+
99	+ --ADVANCED USERS ONLY--
100	+ If you'd like a slight speedup (about 25%) and you know Linux, you can run the following command which will keep Xvfb running in the background.
101	+ nohup Xvfb :100 -ac -nolisten tcp -screen 0, 1024x768x24 > /dev/null 2>&1 &
102	+ Then set WEBSHOT_XVFB_RUNNING = true below. This will save your server having to fire off a new Xvfb server and shut it down every time a new shot is generated.
103	+ You will need to take responsibility for keeping Xvfb running in case it crashes. (It seems pretty stable)
104	+ You will also need to take responsibility for server security if you're running Xvfb as root.
105	+
106	+
107	+ */
108	+ if(! defined('WEBSHOT_ENABLED') ) define ('WEBSHOT_ENABLED', false); //Beta feature. Adding webshot=1 to your query string will cause the script to return a browser screenshot rather than try to fetch an image.
109	+ if(! defined('WEBSHOT_CUTYCAPT') ) define ('WEBSHOT_CUTYCAPT', '/usr/local/bin/CutyCapt'); //The path to CutyCapt.
110	+ if(! defined('WEBSHOT_XVFB') ) define ('WEBSHOT_XVFB', '/usr/bin/xvfb-run'); //The path to the Xvfb server
111	+ if(! defined('WEBSHOT_SCREEN_X') ) define ('WEBSHOT_SCREEN_X', '1024'); //1024 works ok
112	+ if(! defined('WEBSHOT_SCREEN_Y') ) define ('WEBSHOT_SCREEN_Y', '768'); //768 works ok
113	+ if(! defined('WEBSHOT_COLOR_DEPTH') ) define ('WEBSHOT_COLOR_DEPTH', '24'); //I haven't tested anything besides 24
114	+ if(! defined('WEBSHOT_IMAGE_FORMAT') ) define ('WEBSHOT_IMAGE_FORMAT', 'png'); //png is about 2.5 times the size of jpg but is a LOT better quality
115	+ if(! defined('WEBSHOT_TIMEOUT') ) define ('WEBSHOT_TIMEOUT', '20'); //Seconds to wait for a webshot
116	+ if(! defined('WEBSHOT_USER_AGENT') ) define ('WEBSHOT_USER_AGENT', "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.2.18) Gecko/20110614 Firefox/3.6.18"); //I hate to do this, but a non-browser robot user agent might not show what humans see. So we pretend to be Firefox
117	+ if(! defined('WEBSHOT_JAVASCRIPT_ON') ) define ('WEBSHOT_JAVASCRIPT_ON', true); //Setting to false might give you a slight speedup and block ads. But it could cause other issues.
118	+ if(! defined('WEBSHOT_JAVA_ON') ) define ('WEBSHOT_JAVA_ON', false); //Have only tested this as fase
119	+ if(! defined('WEBSHOT_PLUGINS_ON') ) define ('WEBSHOT_PLUGINS_ON', true); //Enable flash and other plugins
120	+ if(! defined('WEBSHOT_PROXY') ) define ('WEBSHOT_PROXY', ''); //In case you're behind a proxy server.
121	+ if(! defined('WEBSHOT_XVFB_RUNNING') ) define ('WEBSHOT_XVFB_RUNNING', false); //ADVANCED: Enable this if you've got Xvfb running in the background.
122	+
123	+
124	+ // If ALLOW_EXTERNAL is true and ALLOW_ALL_EXTERNAL_SITES is false, then external images will only be fetched from these domains and their subdomains.
125	+ if(! isset($ALLOWED_SITES)){
126	+ $ALLOWED_SITES = array (
127	+ 'flickr.com',
128	+ 'staticflickr.com',
129	+ 'picasa.com',
130	+ 'img.youtube.com',
131	+ 'upload.wikimedia.org',
132	+ 'photobucket.com',
133	+ 'imgur.com',
134	+ 'imageshack.us',
135	+ 'tinypic.com',
136	+ );
137	+ }
138	+ // -------------------------------------------------------------
139	+ // -------------- STOP EDITING CONFIGURATION HERE --------------
140	+ // -------------------------------------------------------------
141	+
142	+ timthumb::start();
143	+
144	+ class timthumb {
145	+ protected $src = "";
146	+ protected $is404 = false;
147	+ protected $docRoot = "";
148	+ protected $lastURLError = false;
149	+ protected $localImage = "";
150	+ protected $localImageMTime = 0;
151	+ protected $url = false;
152	+ protected $myHost = "";
153	+ protected $isURL = false;
154	+ protected $cachefile = '';
155	+ protected $errors = array();
156	+ protected $toDeletes = array();
157	+ protected $cacheDirectory = '';
158	+ protected $startTime = 0;
159	+ protected $lastBenchTime = 0;
160	+ protected $cropTop = false;
161	+ protected $salt = "";
162	+ protected $fileCacheVersion = 1; //Generally if timthumb.php is modifed (upgraded) then the salt changes and all cache files are recreated. This is a backup mechanism to force regen.
163	+ protected $filePrependSecurityBlock = "<?php die('Execution denied!'); //"; //Designed to have three letter mime type, space, question mark and greater than symbol appended. 6 bytes total.
164	+ protected static $curlDataWritten = 0;
165	+ protected static $curlFH = false;
166	+ public static function start(){
167	+ $tim = new timthumb();
168	+ $tim->handleErrors();
169	+ $tim->securityChecks();
170	+ if($tim->tryBrowserCache()){
171	+ exit(0);
172	+ }
173	+ $tim->handleErrors();
174	+ if(FILE_CACHE_ENABLED && $tim->tryServerCache()){
175	+ exit(0);
176	+ }
177	+ $tim->handleErrors();
178	+ $tim->run();
179	+ $tim->handleErrors();
180	+ exit(0);
181	+ }
182	+ public function __construct(){
183	+ global $ALLOWED_SITES;
184	+ $this->startTime = microtime(true);
185	+ date_default_timezone_set('UTC');
186	+ $this->debug(1, "Starting new request from " . $this->getIP() . " to " . $_SERVER['REQUEST_URI']);
187	+ $this->calcDocRoot();
188	+ //On windows systems I'm assuming fileinode returns an empty string or a number that doesn't change. Check this.
189	+ $this->salt = @filemtime(__FILE__) . '-' . @fileinode(__FILE__);
190	+ $this->debug(3, "Salt is: " . $this->salt);
191	+ if(FILE_CACHE_DIRECTORY){
192	+ if(! is_dir(FILE_CACHE_DIRECTORY)){
193	+ @mkdir(FILE_CACHE_DIRECTORY);
194	+ if(! is_dir(FILE_CACHE_DIRECTORY)){
195	+ $this->error("Could not create the file cache directory.");
196	+ return false;
197	+ }
198	+ }
199	+ $this->cacheDirectory = FILE_CACHE_DIRECTORY;
200	+ if (!touch($this->cacheDirectory . '/index.html')) {
201	+ $this->error("Could not create the index.html file - to fix this create an empty file named index.html file in the cache directory.");
202	+ }
203	+ } else {
204	+ $this->cacheDirectory = sys_get_temp_dir();
205	+ }
206	+ //Clean the cache before we do anything because we don't want the first visitor after FILE_CACHE_TIME_BETWEEN_CLEANS expires to get a stale image.
207	+ $this->cleanCache();
208	+
209	+ $this->myHost = preg_replace('/^www\./i', '', $_SERVER['HTTP_HOST']);
210	+ $this->src = $this->param('src');
211	+ $this->url = parse_url($this->src);
212	+ $this->src = preg_replace('/https?:\/\/(?:www\.)?' . $this->myHost . '/i', '', $this->src);
213	+
214	+ if(strlen($this->src) <= 3){
215	+ $this->error("No image specified");
216	+ return false;
217	+ }
218	+ if(BLOCK_EXTERNAL_LEECHERS && array_key_exists('HTTP_REFERER', $_SERVER) && (! preg_match('/^https?:\/\/(?:www\.)?' . $this->myHost . '(?:$\|\/)/i', $_SERVER['HTTP_REFERER']))){
219	+ // base64 encoded red image that says 'no hotlinkers'
220	+ // nothing to worry about! :)
221	+ $imgData = base64_decode("R0lGODlhUAAMAIAAAP8AAP///yH5BAAHAP8ALAAAAABQAAwAAAJpjI+py+0Po5y0OgAMjjv01YUZ\nOGplhWXfNa6JCLnWkXplrcBmW+spbwvaVr/cDyg7IoFC2KbYVC2NQ5MQ4ZNao9Ynzjl9ScNYpneb\nDULB3RP6JuPuaGfuuV4fumf8PuvqFyhYtjdoeFgAADs=");
222	+ header('Content-Type: image/gif');
223	+ header('Content-Length: ' . sizeof($imgData));
224	+ header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');
225	+ header("Pragma: no-cache");
226	+ header('Expires: ' . gmdate ('D, d M Y H:i:s', time()));
227	+ echo $imgData;
228	+ return false;
229	+ exit(0);
230	+ }
231	+ if(preg_match('/^https?:\/\/[^\/]+/i', $this->src)){
232	+ $this->debug(2, "Is a request for an external URL: " . $this->src);
233	+ $this->isURL = true;
234	+ } else {
235	+ $this->debug(2, "Is a request for an internal file: " . $this->src);
236	+ }
237	+ if($this->isURL && (! ALLOW_EXTERNAL)){
238	+ $this->error("You are not allowed to fetch images from an external website.");
239	+ return false;
240	+ }
241	+ if($this->isURL){
242	+ if(ALLOW_ALL_EXTERNAL_SITES){
243	+ $this->debug(2, "Fetching from all external sites is enabled.");
244	+ } else {
245	+ $this->debug(2, "Fetching only from selected external sites is enabled.");
246	+ $allowed = false;
247	+ foreach($ALLOWED_SITES as $site){
248	+ if ((strtolower(substr($this->url['host'],-strlen($site)-1)) === strtolower(".$site")) \|\| (strtolower($this->url['host'])===strtolower($site))) {
249	+ $this->debug(3, "URL hostname {$this->url['host']} matches $site so allowing.");
250	+ $allowed = true;
251	+ }
252	+ }
253	+ if(! $allowed){
254	+ return $this->error("You may not fetch images from that site. To enable this site in timthumb, you can either add it to \$ALLOWED_SITES and set ALLOW_EXTERNAL=true. Or you can set ALLOW_ALL_EXTERNAL_SITES=true, depending on your security needs.");
255	+ }
256	+ }
257	+ }
258	+
259	+ $cachePrefix = ($this->isURL ? '_ext_' : '_int_');
260	+ if($this->isURL){
261	+ $arr = explode('&', $_SERVER ['QUERY_STRING']);
262	+ asort($arr);
263	+ $this->cachefile = $this->cacheDirectory . '/' . FILE_CACHE_PREFIX . $cachePrefix . md5($this->salt . implode('', $arr) . $this->fileCacheVersion) . FILE_CACHE_SUFFIX;
264	+ } else {
265	+ $this->localImage = $this->getLocalImagePath($this->src);
266	+ if(! $this->localImage){
267	+ $this->debug(1, "Could not find the local image: {$this->localImage}");
268	+ $this->error("Could not find the internal image you specified.");
269	+ $this->set404();
270	+ return false;
271	+ }
272	+ $this->debug(1, "Local image path is {$this->localImage}");
273	+ $this->localImageMTime = @filemtime($this->localImage);
274	+ //We include the mtime of the local file in case in changes on disk.
275	+ $this->cachefile = $this->cacheDirectory . '/' . FILE_CACHE_PREFIX . $cachePrefix . md5($this->salt . $this->localImageMTime . $_SERVER ['QUERY_STRING'] . $this->fileCacheVersion) . FILE_CACHE_SUFFIX;
276	+ }
277	+ $this->debug(2, "Cache file is: " . $this->cachefile);
278	+
279	+ return true;
280	+ }
281	+ public function __destruct(){
282	+ foreach($this->toDeletes as $del){
283	+ $this->debug(2, "Deleting temp file $del");
284	+ @unlink($del);
285	+ }
286	+ }
287	+ public function run(){
288	+ if($this->isURL){
289	+ if(! ALLOW_EXTERNAL){
290	+ $this->debug(1, "Got a request for an external image but ALLOW_EXTERNAL is disabled so returning error msg.");
291	+ $this->error("You are not allowed to fetch images from an external website.");
292	+ return false;
293	+ }
294	+ $this->debug(3, "Got request for external image. Starting serveExternalImage.");
295	+ if($this->param('webshot')){
296	+ if(WEBSHOT_ENABLED){
297	+ $this->debug(3, "webshot param is set, so we're going to take a webshot.");
298	+ $this->serveWebshot();
299	+ } else {
300	+ $this->error("You added the webshot parameter but webshots are disabled on this server. You need to set WEBSHOT_ENABLED == true to enable webshots.");
301	+ }
302	+ } else {
303	+ $this->debug(3, "webshot is NOT set so we're going to try to fetch a regular image.");
304	+ $this->serveExternalImage();
305	+
306	+ }
307	+ } else {
308	+ $this->debug(3, "Got request for internal image. Starting serveInternalImage()");
309	+ $this->serveInternalImage();
310	+ }
311	+ return true;
312	+ }
313	+ protected function handleErrors(){
314	+ if($this->haveErrors()){
315	+ if(NOT_FOUND_IMAGE && $this->is404()){
316	+ if($this->serveImg(NOT_FOUND_IMAGE)){
317	+ exit(0);
318	+ } else {
319	+ $this->error("Additionally, the 404 image that is configured could not be found or there was an error serving it.");
320	+ }
321	+ }
322	+ if(ERROR_IMAGE){
323	+ if($this->serveImg(ERROR_IMAGE)){
324	+ exit(0);
325	+ } else {
326	+ $this->error("Additionally, the error image that is configured could not be found or there was an error serving it.");
327	+ }
328	+ }
329	+ $this->serveErrors();
330	+ exit(0);
331	+ }
332	+ return false;
333	+ }
334	+ protected function tryBrowserCache(){
335	+ if(BROWSER_CACHE_DISABLE){ $this->debug(3, "Browser caching is disabled"); return false; }
336	+ if(!empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) ){
337	+ $this->debug(3, "Got a conditional get");
338	+ $mtime = false;
339	+ //We've already checked if the real file exists in the constructor
340	+ if(! is_file($this->cachefile)){
341	+ //If we don't have something cached, regenerate the cached image.
342	+ return false;
343	+ }
344	+ if($this->localImageMTime){
345	+ $mtime = $this->localImageMTime;
346	+ $this->debug(3, "Local real file's modification time is $mtime");
347	+ } else if(is_file($this->cachefile)){ //If it's not a local request then use the mtime of the cached file to determine the 304
348	+ $mtime = @filemtime($this->cachefile);
349	+ $this->debug(3, "Cached file's modification time is $mtime");
350	+ }
351	+ if(! $mtime){ return false; }
352	+
353	+ $iftime = strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']);
354	+ $this->debug(3, "The conditional get's if-modified-since unixtime is $iftime");
355	+ if($iftime < 1){
356	+ $this->debug(3, "Got an invalid conditional get modified since time. Returning false.");
357	+ return false;
358	+ }
359	+ if($iftime < $mtime){ //Real file or cache file has been modified since last request, so force refetch.
360	+ $this->debug(3, "File has been modified since last fetch.");
361	+ return false;
362	+ } else { //Otherwise serve a 304
363	+ $this->debug(3, "File has not been modified since last get, so serving a 304.");
364	+ header ($_SERVER['SERVER_PROTOCOL'] . ' 304 Not Modified');
365	+ $this->debug(1, "Returning 304 not modified");
366	+ return true;
367	+ }
368	+ }
369	+ return false;
370	+ }
371	+ protected function tryServerCache(){
372	+ $this->debug(3, "Trying server cache");
373	+ if(file_exists($this->cachefile)){
374	+ $this->debug(3, "Cachefile {$this->cachefile} exists");
375	+ if($this->isURL){
376	+ $this->debug(3, "This is an external request, so checking if the cachefile is empty which means the request failed previously.");
377	+ if(filesize($this->cachefile) < 1){
378	+ $this->debug(3, "Found an empty cachefile indicating a failed earlier request. Checking how old it is.");
379	+ //Fetching error occured previously
380	+ if(time() - @filemtime($this->cachefile) > WAIT_BETWEEN_FETCH_ERRORS){
381	+ $this->debug(3, "File is older than " . WAIT_BETWEEN_FETCH_ERRORS . " seconds. Deleting and returning false so app can try and load file.");
382	+ @unlink($this->cachefile);
383	+ return false; //to indicate we didn't serve from cache and app should try and load
384	+ } else {
385	+ $this->debug(3, "Empty cachefile is still fresh so returning message saying we had an error fetching this image from remote host.");
386	+ $this->set404();
387	+ $this->error("An error occured fetching image.");
388	+ return false;
389	+ }
390	+ }
391	+ } else {
392	+ $this->debug(3, "Trying to serve cachefile {$this->cachefile}");
393	+ }
394	+ if($this->serveCacheFile()){
395	+ $this->debug(3, "Succesfully served cachefile {$this->cachefile}");
396	+ return true;
397	+ } else {
398	+ $this->debug(3, "Failed to serve cachefile {$this->cachefile} - Deleting it from cache.");
399	+ //Image serving failed. We can't retry at this point, but lets remove it from cache so the next request recreates it
400	+ @unlink($this->cachefile);
401	+ return true;
402	+ }
403	+ }
404	+ }
405	+ protected function error($err){
406	+ $this->debug(3, "Adding error message: $err");
407	+ $this->errors[] = $err;
408	+ return false;
409	+
410	+ }
411	+ protected function haveErrors(){
412	+ if(sizeof($this->errors) > 0){
413	+ return true;
414	+ }
415	+ return false;
416	+ }
417	+ protected function serveErrors(){
418	+ header ($_SERVER['SERVER_PROTOCOL'] . ' 400 Bad Request');
419	+ $html = '<ul>';
420	+ foreach($this->errors as $err){
421	+ $html .= '<li>' . htmlentities($err) . '</li>';
422	+ }
423	+ $html .= '</ul>';
424	+ echo '<h1>A TimThumb error has occured</h1>The following error(s) occured:<br />' . $html . '<br />';
425	+ echo '<br />Query String : ' . htmlentities ($_SERVER['QUERY_STRING']);
426	+ echo '<br />TimThumb version : ' . VERSION . '</pre>';
427	+ }
428	+ protected function serveInternalImage(){
429	+ $this->debug(3, "Local image path is $this->localImage");
430	+ if(! $this->localImage){
431	+ $this->sanityFail("localImage not set after verifying it earlier in the code.");
432	+ return false;
433	+ }
434	+ $fileSize = filesize($this->localImage);
435	+ if($fileSize > MAX_FILE_SIZE){
436	+ $this->error("The file you specified is greater than the maximum allowed file size.");
437	+ return false;
438	+ }
439	+ if($fileSize <= 0){
440	+ $this->error("The file you specified is <= 0 bytes.");
441	+ return false;
442	+ }
443	+ $this->debug(3, "Calling processImageAndWriteToCache() for local image.");
444	+ if($this->processImageAndWriteToCache($this->localImage)){
445	+ $this->serveCacheFile();
446	+ return true;
447	+ } else {
448	+ return false;
449	+ }
450	+ }
451	+ protected function cleanCache(){
452	+ if (FILE_CACHE_TIME_BETWEEN_CLEANS < 0) {
453	+ return;
454	+ }
455	+ $this->debug(3, "cleanCache() called");
456	+ $lastCleanFile = $this->cacheDirectory . '/timthumb_cacheLastCleanTime.touch';
457	+
458	+ //If this is a new timthumb installation we need to create the file
459	+ if(! is_file($lastCleanFile)){
460	+ $this->debug(1, "File tracking last clean doesn't exist. Creating $lastCleanFile");
461	+ if (!touch($lastCleanFile)) {
462	+ $this->error("Could not create cache clean timestamp file.");
463	+ }
464	+ return;
465	+ }
466	+ if(@filemtime($lastCleanFile) < (time() - FILE_CACHE_TIME_BETWEEN_CLEANS) ){ //Cache was last cleaned more than 1 day ago
467	+ $this->debug(1, "Cache was last cleaned more than " . FILE_CACHE_TIME_BETWEEN_CLEANS . " seconds ago. Cleaning now.");
468	+ // Very slight race condition here, but worst case we'll have 2 or 3 servers cleaning the cache simultaneously once a day.
469	+ if (!touch($lastCleanFile)) {
470	+ $this->error("Could not create cache clean timestamp file.");
471	+ }
472	+ $files = glob($this->cacheDirectory . '/*' . FILE_CACHE_SUFFIX);
473	+ if ($files) {
474	+ $timeAgo = time() - FILE_CACHE_MAX_FILE_AGE;
475	+ foreach($files as $file){
476	+ if(@filemtime($file) < $timeAgo){
477	+ $this->debug(3, "Deleting cache file $file older than max age: " . FILE_CACHE_MAX_FILE_AGE . " seconds");
478	+ @unlink($file);
479	+ }
480	+ }
481	+ }
482	+ return true;
483	+ } else {
484	+ $this->debug(3, "Cache was cleaned less than " . FILE_CACHE_TIME_BETWEEN_CLEANS . " seconds ago so no cleaning needed.");
485	+ }
486	+ return false;
487	+ }
488	+ protected function processImageAndWriteToCache($localImage){
489	+ $sData = getimagesize($localImage);
490	+ $origType = $sData[2];
491	+ $mimeType = $sData['mime'];
492	+
493	+ $this->debug(3, "Mime type of image is $mimeType");
494	+ if(! preg_match('/^image\/(?:gif\|jpg\|jpeg\|png)$/i', $mimeType)){
495	+ return $this->error("The image being resized is not a valid gif, jpg or png.");
496	+ }
497	+
498	+ if (!function_exists ('imagecreatetruecolor')) {
499	+ return $this->error('GD Library Error: imagecreatetruecolor does not exist - please contact your webhost and ask them to install the GD library');
500	+ }
501	+
502	+ if (function_exists ('imagefilter') && defined ('IMG_FILTER_NEGATE')) {
503	+ $imageFilters = array (
504	+ 1 => array (IMG_FILTER_NEGATE, 0),
505	+ 2 => array (IMG_FILTER_GRAYSCALE, 0),
506	+ 3 => array (IMG_FILTER_BRIGHTNESS, 1),
507	+ 4 => array (IMG_FILTER_CONTRAST, 1),
508	+ 5 => array (IMG_FILTER_COLORIZE, 4),
509	+ 6 => array (IMG_FILTER_EDGEDETECT, 0),
510	+ 7 => array (IMG_FILTER_EMBOSS, 0),
511	+ 8 => array (IMG_FILTER_GAUSSIAN_BLUR, 0),
512	+ 9 => array (IMG_FILTER_SELECTIVE_BLUR, 0),
513	+ 10 => array (IMG_FILTER_MEAN_REMOVAL, 0),
514	+ 11 => array (IMG_FILTER_SMOOTH, 0),
515	+ );
516	+ }
517	+
518	+ // get standard input properties
519	+ $new_width = (int) abs ($this->param('w', 0));
520	+ $new_height = (int) abs ($this->param('h', 0));
521	+ $zoom_crop = (int) $this->param('zc', DEFAULT_ZC);
522	+ $quality = (int) abs ($this->param('q', DEFAULT_Q));
523	+ $align = $this->cropTop ? 't' : $this->param('a', 'c');
524	+ $filters = $this->param('f', DEFAULT_F);
525	+ $sharpen = (bool) $this->param('s', DEFAULT_S);
526	+ $canvas_color = $this->param('cc', DEFAULT_CC);
527	+ $canvas_trans = (bool) $this->param('ct', '1');
528	+
529	+ // set default width and height if neither are set already
530	+ if ($new_width == 0 && $new_height == 0) {
531	+ $new_width = 100;
532	+ $new_height = 100;
533	+ }
534	+
535	+ // ensure size limits can not be abused
536	+ $new_width = min ($new_width, MAX_WIDTH);
537	+ $new_height = min ($new_height, MAX_HEIGHT);
538	+
539	+ // set memory limit to be able to have enough space to resize larger images
540	+ $this->setMemoryLimit();
541	+
542	+ // open the existing image
543	+ $image = $this->openImage ($mimeType, $localImage);
544	+ if ($image === false) {
545	+ return $this->error('Unable to open image.');
546	+ }
547	+
548	+ // Get original width and height
549	+ $width = imagesx ($image);
550	+ $height = imagesy ($image);
551	+ $origin_x = 0;
552	+ $origin_y = 0;
553	+
554	+ // generate new w/h if not provided
555	+ if ($new_width && !$new_height) {
556	+ $new_height = floor ($height * ($new_width / $width));
557	+ } else if ($new_height && !$new_width) {
558	+ $new_width = floor ($width * ($new_height / $height));
559	+ }
560	+
561	+ // scale down and add borders
562	+ if ($zoom_crop == 3) {
563	+
564	+ $final_height = $height * ($new_width / $width);
565	+
566	+ if ($final_height > $new_height) {
567	+ $new_width = $width * ($new_height / $height);
568	+ } else {
569	+ $new_height = $final_height;
570	+ }
571	+
572	+ }
573	+
574	+ // create a new true color image
575	+ $canvas = imagecreatetruecolor ($new_width, $new_height);
576	+ imagealphablending ($canvas, false);
577	+
578	+ if (strlen($canvas_color) == 3) { //if is 3-char notation, edit string into 6-char notation
579	+ $canvas_color = str_repeat(substr($canvas_color, 0, 1), 2) . str_repeat(substr($canvas_color, 1, 1), 2) . str_repeat(substr($canvas_color, 2, 1), 2);
580	+ } else if (strlen($canvas_color) != 6) {
581	+ $canvas_color = DEFAULT_CC; // on error return default canvas color
582	+ }
583	+
584	+ $canvas_color_R = hexdec (substr ($canvas_color, 0, 2));
585	+ $canvas_color_G = hexdec (substr ($canvas_color, 2, 2));
586	+ $canvas_color_B = hexdec (substr ($canvas_color, 4, 2));
587	+
588	+ // Create a new transparent color for image
589	+ // If is a png and PNG_IS_TRANSPARENT is false then remove the alpha transparency
590	+ // (and if is set a canvas color show it in the background)
591	+ if(preg_match('/^image\/png$/i', $mimeType) && !PNG_IS_TRANSPARENT && $canvas_trans){
592	+ $color = imagecolorallocatealpha ($canvas, $canvas_color_R, $canvas_color_G, $canvas_color_B, 127);
593	+ }else{
594	+ $color = imagecolorallocatealpha ($canvas, $canvas_color_R, $canvas_color_G, $canvas_color_B, 0);
595	+ }
596	+
597	+
598	+ // Completely fill the background of the new image with allocated color.
599	+ imagefill ($canvas, 0, 0, $color);
600	+
601	+ // scale down and add borders
602	+ if ($zoom_crop == 2) {
603	+
604	+ $final_height = $height * ($new_width / $width);
605	+
606	+ if ($final_height > $new_height) {
607	+
608	+ $origin_x = $new_width / 2;
609	+ $new_width = $width * ($new_height / $height);
610	+ $origin_x = round ($origin_x - ($new_width / 2));
611	+
612	+ } else {
613	+
614	+ $origin_y = $new_height / 2;
615	+ $new_height = $final_height;
616	+ $origin_y = round ($origin_y - ($new_height / 2));
617	+
618	+ }
619	+
620	+ }
621	+
622	+ // Restore transparency blending
623	+ imagesavealpha ($canvas, true);
624	+
625	+ if ($zoom_crop > 0) {
626	+
627	+ $src_x = $src_y = 0;
628	+ $src_w = $width;
629	+ $src_h = $height;
630	+
631	+ $cmp_x = $width / $new_width;
632	+ $cmp_y = $height / $new_height;
633	+
634	+ // calculate x or y coordinate and width or height of source
635	+ if ($cmp_x > $cmp_y) {
636	+
637	+ $src_w = round ($width / $cmp_x * $cmp_y);
638	+ $src_x = round (($width - ($width / $cmp_x * $cmp_y)) / 2);
639	+
640	+ } else if ($cmp_y > $cmp_x) {
641	+
642	+ $src_h = round ($height / $cmp_y * $cmp_x);
643	+ $src_y = round (($height - ($height / $cmp_y * $cmp_x)) / 2);
644	+
645	+ }
646	+
647	+ // positional cropping!
648	+ if ($align) {
649	+ if (strpos ($align, 't') !== false) {
650	+ $src_y = 0;
651	+ }
652	+ if (strpos ($align, 'b') !== false) {
653	+ $src_y = $height - $src_h;
654	+ }
655	+ if (strpos ($align, 'l') !== false) {
656	+ $src_x = 0;
657	+ }
658	+ if (strpos ($align, 'r') !== false) {
659	+ $src_x = $width - $src_w;
660	+ }
661	+ }
662	+
663	+ imagecopyresampled ($canvas, $image, $origin_x, $origin_y, $src_x, $src_y, $new_width, $new_height, $src_w, $src_h);
664	+
665	+ } else {
666	+
667	+ // copy and resize part of an image with resampling
668	+ imagecopyresampled ($canvas, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
669	+
670	+ }
671	+
672	+ if ($filters != '' && function_exists ('imagefilter') && defined ('IMG_FILTER_NEGATE')) {
673	+ // apply filters to image
674	+ $filterList = explode ('\|', $filters);
675	+ foreach ($filterList as $fl) {
676	+
677	+ $filterSettings = explode (',', $fl);
678	+ if (isset ($imageFilters[$filterSettings[0]])) {
679	+
680	+ for ($i = 0; $i < 4; $i ++) {
681	+ if (!isset ($filterSettings[$i])) {
682	+ $filterSettings[$i] = null;
683	+ } else {
684	+ $filterSettings[$i] = (int) $filterSettings[$i];
685	+ }
686	+ }
687	+
688	+ switch ($imageFilters[$filterSettings[0]][1]) {
689	+
690	+ case 1:
691	+
692	+ imagefilter ($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1]);
693	+ break;
694	+
695	+ case 2:
696	+
697	+ imagefilter ($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1], $filterSettings[2]);
698	+ break;
699	+
700	+ case 3:
701	+
702	+ imagefilter ($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1], $filterSettings[2], $filterSettings[3]);
703	+ break;
704	+
705	+ case 4:
706	+
707	+ imagefilter ($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1], $filterSettings[2], $filterSettings[3], $filterSettings[4]);
708	+ break;
709	+
710	+ default:
711	+
712	+ imagefilter ($canvas, $imageFilters[$filterSettings[0]][0]);
713	+ break;
714	+
715	+ }
716	+ }
717	+ }
718	+ }
719	+
720	+ // sharpen image
721	+ if ($sharpen && function_exists ('imageconvolution')) {
722	+
723	+ $sharpenMatrix = array (
724	+ array (-1,-1,-1),
725	+ array (-1,16,-1),
726	+ array (-1,-1,-1),
727	+ );
728	+
729	+ $divisor = 8;
730	+ $offset = 0;
731	+
732	+ imageconvolution ($canvas, $sharpenMatrix, $divisor, $offset);
733	+
734	+ }
735	+ //Straight from Wordpress core code. Reduces filesize by up to 70% for PNG's
736	+ if ( (IMAGETYPE_PNG == $origType \|\| IMAGETYPE_GIF == $origType) && function_exists('imageistruecolor') && !imageistruecolor( $image ) && imagecolortransparent( $image ) > 0 ){
737	+ imagetruecolortopalette( $canvas, false, imagecolorstotal( $image ) );
738	+ }
739	+
740	+ $imgType = "";
741	+ $tempfile = tempnam($this->cacheDirectory, 'timthumb_tmpimg_');
742	+ if(preg_match('/^image\/(?:jpg\|jpeg)$/i', $mimeType)){
743	+ $imgType = 'jpg';
744	+ imagejpeg($canvas, $tempfile, $quality);
745	+ } else if(preg_match('/^image\/png$/i', $mimeType)){
746	+ $imgType = 'png';
747	+ imagepng($canvas, $tempfile, floor($quality * 0.09));
748	+ } else if(preg_match('/^image\/gif$/i', $mimeType)){
749	+ $imgType = 'gif';
750	+ imagegif($canvas, $tempfile);
751	+ } else {
752	+ return $this->sanityFail("Could not match mime type after verifying it previously.");
753	+ }
754	+
755	+ if($imgType == 'png' && OPTIPNG_ENABLED && OPTIPNG_PATH && @is_file(OPTIPNG_PATH)){
756	+ $exec = OPTIPNG_PATH;
757	+ $this->debug(3, "optipng'ing $tempfile");
758	+ $presize = filesize($tempfile);
759	+ $out = `$exec -o1 $tempfile`; //you can use up to -o7 but it really slows things down
760	+ clearstatcache();
761	+ $aftersize = filesize($tempfile);
762	+ $sizeDrop = $presize - $aftersize;
763	+ if($sizeDrop > 0){
764	+ $this->debug(1, "optipng reduced size by $sizeDrop");
765	+ } else if($sizeDrop < 0){
766	+ $this->debug(1, "optipng increased size! Difference was: $sizeDrop");
767	+ } else {
768	+ $this->debug(1, "optipng did not change image size.");
769	+ }
770	+ } else if($imgType == 'png' && PNGCRUSH_ENABLED && PNGCRUSH_PATH && @is_file(PNGCRUSH_PATH)){
771	+ $exec = PNGCRUSH_PATH;
772	+ $tempfile2 = tempnam($this->cacheDirectory, 'timthumb_tmpimg_');
773	+ $this->debug(3, "pngcrush'ing $tempfile to $tempfile2");
774	+ $out = `$exec $tempfile $tempfile2`;
775	+ $todel = "";
776	+ if(is_file($tempfile2)){
777	+ $sizeDrop = filesize($tempfile) - filesize($tempfile2);
778	+ if($sizeDrop > 0){
779	+ $this->debug(1, "pngcrush was succesful and gave a $sizeDrop byte size reduction");
780	+ $todel = $tempfile;
781	+ $tempfile = $tempfile2;
782	+ } else {
783	+ $this->debug(1, "pngcrush did not reduce file size. Difference was $sizeDrop bytes.");
784	+ $todel = $tempfile2;
785	+ }
786	+ } else {
787	+ $this->debug(3, "pngcrush failed with output: $out");
788	+ $todel = $tempfile2;
789	+ }
790	+ @unlink($todel);
791	+ }
792	+
793	+ $this->debug(3, "Rewriting image with security header.");
794	+ $tempfile4 = tempnam($this->cacheDirectory, 'timthumb_tmpimg_');
795	+ $context = stream_context_create ();
796	+ $fp = fopen($tempfile,'r',0,$context);
797	+ file_put_contents($tempfile4, $this->filePrependSecurityBlock . $imgType . ' ?' . '>'); //6 extra bytes, first 3 being image type
798	+ file_put_contents($tempfile4, $fp, FILE_APPEND);
799	+ fclose($fp);
800	+ @unlink($tempfile);
801	+ $this->debug(3, "Locking and replacing cache file.");
802	+ $lockFile = $this->cachefile . '.lock';
803	+ $fh = fopen($lockFile, 'w');
804	+ if(! $fh){
805	+ return $this->error("Could not open the lockfile for writing an image.");
806	+ }
807	+ if(flock($fh, LOCK_EX)){
808	+ @unlink($this->cachefile); //rename generally overwrites, but doing this in case of platform specific quirks. File might not exist yet.
809	+ rename($tempfile4, $this->cachefile);
810	+ flock($fh, LOCK_UN);
811	+ fclose($fh);
812	+ @unlink($lockFile);
813	+ } else {
814	+ fclose($fh);
815	+ @unlink($lockFile);
816	+ @unlink($tempfile4);
817	+ return $this->error("Could not get a lock for writing.");
818	+ }
819	+ $this->debug(3, "Done image replace with security header. Cleaning up and running cleanCache()");
820	+ imagedestroy($canvas);
821	+ imagedestroy($image);
822	+ return true;
823	+ }
824	+ protected function calcDocRoot(){
825	+ $docRoot = @$_SERVER['DOCUMENT_ROOT'];
826	+ if (defined('LOCAL_FILE_BASE_DIRECTORY')) {
827	+ $docRoot = LOCAL_FILE_BASE_DIRECTORY;
828	+ }
829	+ if(!isset($docRoot)){
830	+ $this->debug(3, "DOCUMENT_ROOT is not set. This is probably windows. Starting search 1.");
831	+ if(isset($_SERVER['SCRIPT_FILENAME'])){
832	+ $docRoot = str_replace( '\\', '/', substr($_SERVER['SCRIPT_FILENAME'], 0, 0-strlen($_SERVER['PHP_SELF'])));
833	+ $this->debug(3, "Generated docRoot using SCRIPT_FILENAME and PHP_SELF as: $docRoot");
834	+ }
835	+ }
836	+ if(!isset($docRoot)){
837	+ $this->debug(3, "DOCUMENT_ROOT still is not set. Starting search 2.");
838	+ if(isset($_SERVER['PATH_TRANSLATED'])){
839	+ $docRoot = str_replace( '\\', '/', substr(str_replace('\\\\', '\\', $_SERVER['PATH_TRANSLATED']), 0, 0-strlen($_SERVER['PHP_SELF'])));
840	+ $this->debug(3, "Generated docRoot using PATH_TRANSLATED and PHP_SELF as: $docRoot");
841	+ }
842	+ }
843	+ if($docRoot && $_SERVER['DOCUMENT_ROOT'] != '/'){ $docRoot = preg_replace('/\/$/', '', $docRoot); }
844	+ $this->debug(3, "Doc root is: " . $docRoot);
845	+ $this->docRoot = $docRoot;
846	+
847	+ }
848	+ protected function getLocalImagePath($src){
849	+ $src = ltrim($src, '/'); //strip off the leading '/'
850	+ if(! $this->docRoot){
851	+ $this->debug(3, "We have no document root set, so as a last resort, lets check if the image is in the current dir and serve that.");
852	+ //We don't support serving images outside the current dir if we don't have a doc root for security reasons.
853	+ $file = preg_replace('/^.*?([^\/\\\\]+)$/', '$1', $src); //strip off any path info and just leave the filename.
854	+ if(is_file($file)){
855	+ return $this->realpath($file);
856	+ }
857	+ return $this->error("Could not find your website document root and the file specified doesn't exist in timthumbs directory. We don't support serving files outside timthumb's directory without a document root for security reasons.");
858	+ } //Do not go past this point without docRoot set
859	+
860	+ //Try src under docRoot
861	+ if(file_exists ($this->docRoot . '/' . $src)) {
862	+ $this->debug(3, "Found file as " . $this->docRoot . '/' . $src);
863	+ $real = $this->realpath($this->docRoot . '/' . $src);
864	+ if(stripos($real, $this->docRoot) === 0){
865	+ return $real;
866	+ } else {
867	+ $this->debug(1, "Security block: The file specified occurs outside the document root.");
868	+ //allow search to continue
869	+ }
870	+ }
871	+ //Check absolute paths and then verify the real path is under doc root
872	+ $absolute = $this->realpath('/' . $src);
873	+ if($absolute && file_exists($absolute)){ //realpath does file_exists check, so can probably skip the exists check here
874	+ $this->debug(3, "Found absolute path: $absolute");
875	+ if(! $this->docRoot){ $this->sanityFail("docRoot not set when checking absolute path."); }
876	+ if(stripos($absolute, $this->docRoot) === 0){
877	+ return $absolute;
878	+ } else {
879	+ $this->debug(1, "Security block: The file specified occurs outside the document root.");
880	+ //and continue search
881	+ }
882	+ }
883	+
884	+ $base = $this->docRoot;
885	+
886	+ // account for Windows directory structure
887	+ if (strstr($_SERVER['SCRIPT_FILENAME'],':')) {
888	+ $sub_directories = explode('\\', str_replace($this->docRoot, '', $_SERVER['SCRIPT_FILENAME']));
889	+ } else {
890	+ $sub_directories = explode('/', str_replace($this->docRoot, '', $_SERVER['SCRIPT_FILENAME']));
891	+ }
892	+
893	+ foreach ($sub_directories as $sub){
894	+ $base .= $sub . '/';
895	+ $this->debug(3, "Trying file as: " . $base . $src);
896	+ if(file_exists($base . $src)){
897	+ $this->debug(3, "Found file as: " . $base . $src);
898	+ $real = $this->realpath($base . $src);
899	+ if(stripos($real, $this->realpath($this->docRoot)) === 0){
900	+ return $real;
901	+ } else {
902	+ $this->debug(1, "Security block: The file specified occurs outside the document root.");
903	+ //And continue search
904	+ }
905	+ }
906	+ }
907	+ return false;
908	+ }
909	+ protected function realpath($path){
910	+ //try to remove any relative paths
911	+ $remove_relatives = '/\w+\/\.\.\//';
912	+ while(preg_match($remove_relatives,$path)){
913	+ $path = preg_replace($remove_relatives, '', $path);
914	+ }
915	+ //if any remain use PHP realpath to strip them out, otherwise return $path
916	+ //if using realpath, any symlinks will also be resolved
917	+ return preg_match('#^\.\./\|/\.\./#', $path) ? realpath($path) : $path;
918	+ }
919	+ protected function toDelete($name){
920	+ $this->debug(3, "Scheduling file $name to delete on destruct.");
921	+ $this->toDeletes[] = $name;
922	+ }
923	+ protected function serveWebshot(){
924	+ $this->debug(3, "Starting serveWebshot");
925	+ $instr = "Please follow the instructions at http://code.google.com/p/timthumb/ to set your server up for taking website screenshots.";
926	+ if(! is_file(WEBSHOT_CUTYCAPT)){
927	+ return $this->error("CutyCapt is not installed. $instr");
928	+ }
929	+ if(! is_file(WEBSHOT_XVFB)){
930	+ return $this->Error("Xvfb is not installed. $instr");
931	+ }
932	+ $cuty = WEBSHOT_CUTYCAPT;
933	+ $xv = WEBSHOT_XVFB;
934	+ $screenX = WEBSHOT_SCREEN_X;
935	+ $screenY = WEBSHOT_SCREEN_Y;
936	+ $colDepth = WEBSHOT_COLOR_DEPTH;
937	+ $format = WEBSHOT_IMAGE_FORMAT;
938	+ $timeout = WEBSHOT_TIMEOUT * 1000;
939	+ $ua = WEBSHOT_USER_AGENT;
940	+ $jsOn = WEBSHOT_JAVASCRIPT_ON ? 'on' : 'off';
941	+ $javaOn = WEBSHOT_JAVA_ON ? 'on' : 'off';
942	+ $pluginsOn = WEBSHOT_PLUGINS_ON ? 'on' : 'off';
943	+ $proxy = WEBSHOT_PROXY ? ' --http-proxy=' . WEBSHOT_PROXY : '';
944	+ $tempfile = tempnam($this->cacheDirectory, 'timthumb_webshot');
945	+ $url = $this->src;
946	+ if(! preg_match('/^https?:\/\/[a-zA-Z0-9\.\-]+/i', $url)){
947	+ return $this->error("Invalid URL supplied.");
948	+ }
949	+ $url = preg_replace('/[^A-Za-z0-9\-\.\_\~:\/\?\#\[\]\@\!\$\&\'\*\+\,\;\=]+/', '', $url); //RFC 3986
950	+ //Very important we don't allow injection of shell commands here. URL is between quotes and we are only allowing through chars allowed by a the RFC
951	+ // which AFAIKT can't be used for shell injection.
952	+ if(WEBSHOT_XVFB_RUNNING){
953	+ putenv('DISPLAY=:100.0');
954	+ $command = "$cuty $proxy --max-wait=$timeout --user-agent=\"$ua\" --javascript=$jsOn --java=$javaOn --plugins=$pluginsOn --js-can-open-windows=off --url=\"$url\" --out-format=$format --out=$tempfile";
955	+ } else {
956	+ $command = "$xv --server-args=\"-screen 0, {$screenX}x{$screenY}x{$colDepth}\" $cuty $proxy --max-wait=$timeout --user-agent=\"$ua\" --javascript=$jsOn --java=$javaOn --plugins=$pluginsOn --js-can-open-windows=off --url=\"$url\" --out-format=$format --out=$tempfile";
957	+ }
958	+ $this->debug(3, "Executing command: $command");
959	+ $out = `$command`;
960	+ $this->debug(3, "Received output: $out");
961	+ if(! is_file($tempfile)){
962	+ $this->set404();
963	+ return $this->error("The command to create a thumbnail failed.");
964	+ }
965	+ $this->cropTop = true;
966	+ if($this->processImageAndWriteToCache($tempfile)){
967	+ $this->debug(3, "Image processed succesfully. Serving from cache");
968	+ return $this->serveCacheFile();
969	+ } else {
970	+ return false;
971	+ }
972	+ }
973	+ protected function serveExternalImage(){
974	+ if(! preg_match('/^https?:\/\/[a-zA-Z0-9\-\.]+/i', $this->src)){
975	+ $this->error("Invalid URL supplied.");
976	+ return false;
977	+ }
978	+ $tempfile = tempnam($this->cacheDirectory, 'timthumb');
979	+ $this->debug(3, "Fetching external image into temporary file $tempfile");
980	+ $this->toDelete($tempfile);
981	+ #fetch file here
982	+ if(! $this->getURL($this->src, $tempfile)){
983	+ @unlink($this->cachefile);
984	+ touch($this->cachefile);
985	+ $this->debug(3, "Error fetching URL: " . $this->lastURLError);
986	+ $this->error("Error reading the URL you specified from remote host." . $this->lastURLError);
987	+ return false;
988	+ }
989	+
990	+ $mimeType = $this->getMimeType($tempfile);
991	+ if(! preg_match("/^image\/(?:jpg\|jpeg\|gif\|png)$/i", $mimeType)){
992	+ $this->debug(3, "Remote file has invalid mime type: $mimeType");
993	+ @unlink($this->cachefile);
994	+ touch($this->cachefile);
995	+ $this->error("The remote file is not a valid image. Mimetype = '" . $mimeType . "'" . $tempfile);
996	+ return false;
997	+ }
998	+ if($this->processImageAndWriteToCache($tempfile)){
999	+ $this->debug(3, "Image processed succesfully. Serving from cache");
1000	+ return $this->serveCacheFile();
1001	+ } else {
1002	+ return false;
1003	+ }
1004	+ }
1005	+ public static function curlWrite($h, $d){
1006	+ fwrite(self::$curlFH, $d);
1007	+ self::$curlDataWritten += strlen($d);
1008	+ if(self::$curlDataWritten > MAX_FILE_SIZE){
1009	+ return 0;
1010	+ } else {
1011	+ return strlen($d);
1012	+ }
1013	+ }
1014	+ protected function serveCacheFile(){
1015	+ $this->debug(3, "Serving {$this->cachefile}");
1016	+ if(! is_file($this->cachefile)){
1017	+ $this->error("serveCacheFile called in timthumb but we couldn't find the cached file.");
1018	+ return false;
1019	+ }
1020	+ $fp = fopen($this->cachefile, 'rb');
1021	+ if(! $fp){ return $this->error("Could not open cachefile."); }
1022	+ fseek($fp, strlen($this->filePrependSecurityBlock), SEEK_SET);
1023	+ $imgType = fread($fp, 3);
1024	+ fseek($fp, 3, SEEK_CUR);
1025	+ if(ftell($fp) != strlen($this->filePrependSecurityBlock) + 6){
1026	+ @unlink($this->cachefile);
1027	+ return $this->error("The cached image file seems to be corrupt.");
1028	+ }
1029	+ $imageDataSize = filesize($this->cachefile) - (strlen($this->filePrependSecurityBlock) + 6);
1030	+ $this->sendImageHeaders($imgType, $imageDataSize);
1031	+ $bytesSent = @fpassthru($fp);
1032	+ fclose($fp);
1033	+ if($bytesSent > 0){
1034	+ return true;
1035	+ }
1036	+ $content = file_get_contents ($this->cachefile);
1037	+ if ($content != FALSE) {
1038	+ $content = substr($content, strlen($this->filePrependSecurityBlock) + 6);
1039	+ echo $content;
1040	+ $this->debug(3, "Served using file_get_contents and echo");
1041	+ return true;
1042	+ } else {
1043	+ $this->error("Cache file could not be loaded.");
1044	+ return false;
1045	+ }
1046	+ }
1047	+ protected function sendImageHeaders($mimeType, $dataSize){
1048	+ if(! preg_match('/^image\//i', $mimeType)){
1049	+ $mimeType = 'image/' . $mimeType;
1050	+ }
1051	+ if(strtolower($mimeType) == 'image/jpg'){
1052	+ $mimeType = 'image/jpeg';
1053	+ }
1054	+ $gmdate_expires = gmdate ('D, d M Y H:i:s', strtotime ('now +10 days')) . ' GMT';
1055	+ $gmdate_modified = gmdate ('D, d M Y H:i:s') . ' GMT';
1056	+ // send content headers then display image
1057	+ header ('Content-Type: ' . $mimeType);
1058	+ header ('Accept-Ranges: none'); //Changed this because we don't accept range requests
1059	+ header ('Last-Modified: ' . $gmdate_modified);
1060	+ header ('Content-Length: ' . $dataSize);
1061	+ if(BROWSER_CACHE_DISABLE){
1062	+ $this->debug(3, "Browser cache is disabled so setting non-caching headers.");
1063	+ header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');
1064	+ header("Pragma: no-cache");
1065	+ header('Expires: ' . gmdate ('D, d M Y H:i:s', time()));
1066	+ } else {
1067	+ $this->debug(3, "Browser caching is enabled");
1068	+ header('Cache-Control: max-age=' . BROWSER_CACHE_MAX_AGE . ', must-revalidate');
1069	+ header('Expires: ' . $gmdate_expires);
1070	+ }
1071	+ return true;
1072	+ }
1073	+ protected function securityChecks(){
1074	+ }
1075	+ protected function param($property, $default = ''){
1076	+ if (isset ($_GET[$property])) {
1077	+ return $_GET[$property];
1078	+ } else {
1079	+ return $default;
1080	+ }
1081	+ }
1082	+ protected function openImage($mimeType, $src){
1083	+ switch ($mimeType) {
1084	+ case 'image/jpeg':
1085	+ $image = imagecreatefromjpeg ($src);
1086	+ break;
1087	+
1088	+ case 'image/png':
1089	+ $image = imagecreatefrompng ($src);
1090	+ imagealphablending( $image, true );
1091	+ imagesavealpha( $image, true );
1092	+ break;
1093	+
1094	+ case 'image/gif':
1095	+ $image = imagecreatefromgif ($src);
1096	+ break;
1097	+
1098	+ default:
1099	+ $this->error("Unrecognised mimeType");
1100	+ }
1101	+
1102	+ return $image;
1103	+ }
1104	+ protected function getIP(){
1105	+ $rem = @$_SERVER["REMOTE_ADDR"];
1106	+ $ff = @$_SERVER["HTTP_X_FORWARDED_FOR"];
1107	+ $ci = @$_SERVER["HTTP_CLIENT_IP"];
1108	+ if(preg_match('/^(?:192\.168\|172\.16\|10\.\|127\.)/', $rem)){
1109	+ if($ff){ return $ff; }
1110	+ if($ci){ return $ci; }
1111	+ return $rem;
1112	+ } else {
1113	+ if($rem){ return $rem; }
1114	+ if($ff){ return $ff; }
1115	+ if($ci){ return $ci; }
1116	+ return "UNKNOWN";
1117	+ }
1118	+ }
1119	+ protected function debug($level, $msg){
1120	+ if(DEBUG_ON && $level <= DEBUG_LEVEL){
1121	+ $execTime = sprintf('%.6f', microtime(true) - $this->startTime);
1122	+ $tick = sprintf('%.6f', 0);
1123	+ if($this->lastBenchTime > 0){
1124	+ $tick = sprintf('%.6f', microtime(true) - $this->lastBenchTime);
1125	+ }
1126	+ $this->lastBenchTime = microtime(true);
1127	+ error_log("TimThumb Debug line " . __LINE__ . " [$execTime : $tick]: $msg");
1128	+ }
1129	+ }
1130	+ protected function sanityFail($msg){
1131	+ return $this->error("There is a problem in the timthumb code. Message: Please report this error at <a href='http://code.google.com/p/timthumb/issues/list'>timthumb's bug tracking page</a>: $msg");
1132	+ }
1133	+ protected function getMimeType($file){
1134	+ $info = getimagesize($file);
1135	+ if(is_array($info) && $info['mime']){
1136	+ return $info['mime'];
1137	+ }
1138	+ return '';
1139	+ }
1140	+ protected function setMemoryLimit(){
1141	+ $inimem = ini_get('memory_limit');
1142	+ $inibytes = timthumb::returnBytes($inimem);
1143	+ $ourbytes = timthumb::returnBytes(MEMORY_LIMIT);
1144	+ if($inibytes < $ourbytes){
1145	+ ini_set ('memory_limit', MEMORY_LIMIT);
1146	+ $this->debug(3, "Increased memory from $inimem to " . MEMORY_LIMIT);
1147	+ } else {
1148	+ $this->debug(3, "Not adjusting memory size because the current setting is " . $inimem . " and our size of " . MEMORY_LIMIT . " is smaller.");
1149	+ }
1150	+ }
1151	+ protected static function returnBytes($size_str){
1152	+ switch (substr ($size_str, -1))
1153	+ {
1154	+ case 'M': case 'm': return (int)$size_str * 1048576;
1155	+ case 'K': case 'k': return (int)$size_str * 1024;
1156	+ case 'G': case 'g': return (int)$size_str * 1073741824;
1157	+ default: return $size_str;
1158	+ }
1159	+ }
1160	+
1161	+ protected function getURL($url, $tempfile){
1162	+ $this->lastURLError = false;
1163	+ $url = preg_replace('/ /', '%20', $url);
1164	+ if(function_exists('curl_init')){
1165	+ $this->debug(3, "Curl is installed so using it to fetch URL.");
1166	+ self::$curlFH = fopen($tempfile, 'w');
1167	+ if(! self::$curlFH){
1168	+ $this->error("Could not open $tempfile for writing.");
1169	+ return false;
1170	+ }
1171	+ self::$curlDataWritten = 0;
1172	+ $this->debug(3, "Fetching url with curl: $url");
1173	+ $curl = curl_init($url);
1174	+ curl_setopt ($curl, CURLOPT_TIMEOUT, CURL_TIMEOUT);
1175	+ curl_setopt ($curl, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.122 Safari/534.30");
1176	+ curl_setopt ($curl, CURLOPT_RETURNTRANSFER, TRUE);
1177	+ curl_setopt ($curl, CURLOPT_HEADER, 0);
1178	+ curl_setopt ($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
1179	+ curl_setopt ($curl, CURLOPT_WRITEFUNCTION, 'timthumb::curlWrite');
1180	+ @curl_setopt ($curl, CURLOPT_FOLLOWLOCATION, true);
1181	+ @curl_setopt ($curl, CURLOPT_MAXREDIRS, 10);
1182	+
1183	+ $curlResult = curl_exec($curl);
1184	+ fclose(self::$curlFH);
1185	+ $httpStatus = curl_getinfo($curl, CURLINFO_HTTP_CODE);
1186	+ if($httpStatus == 404){
1187	+ $this->set404();
1188	+ }
1189	+ if($httpStatus == 302){
1190	+ $this->error("External Image is Redirecting. Try alternate image url");
1191	+ return false;
1192	+ }
1193	+ if($curlResult){
1194	+ curl_close($curl);
1195	+ return true;
1196	+ } else {
1197	+ $this->lastURLError = curl_error($curl);
1198	+ curl_close($curl);
1199	+ return false;
1200	+ }
1201	+ } else {
1202	+ $img = @file_get_contents ($url);
1203	+ if($img === false){
1204	+ $err = error_get_last();
1205	+ if(is_array($err) && $err['message']){
1206	+ $this->lastURLError = $err['message'];
1207	+ } else {
1208	+ $this->lastURLError = $err;
1209	+ }
1210	+ if(preg_match('/404/', $this->lastURLError)){
1211	+ $this->set404();
1212	+ }
1213	+
1214	+ return false;
1215	+ }
1216	+ if(! file_put_contents($tempfile, $img)){
1217	+ $this->error("Could not write to $tempfile.");
1218	+ return false;
1219	+ }
1220	+ return true;
1221	+ }
1222	+
1223	+ }
1224	+ protected function serveImg($file){
1225	+ $s = getimagesize($file);
1226	+ if(! ($s && $s['mime'])){
1227	+ return false;
1228	+ }
1229	+ header ('Content-Type: ' . $s['mime']);
1230	+ header ('Content-Length: ' . filesize($file) );
1231	+ header ('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');
1232	+ header ("Pragma: no-cache");
1233	+ $bytes = @readfile($file);
1234	+ if($bytes > 0){
1235	+ return true;
1236	+ }
1237	+ $content = @file_get_contents ($file);
1238	+ if ($content != FALSE){
1239	+ echo $content;
1240	+ return true;
1241	+ }
1242	+ return false;
1243	+
1244	+ }
1245	+ protected function set404(){
1246	+ $this->is404 = true;
1247	+ }
1248	+ protected function is404(){
1249	+ return $this->is404;
1250	+ }
1251	+ }