Référence du fichier image.php

Espaces de nommage
	core

Fonctions
	doConditionalGet ($etag, $lastModified)
	imageCreateCorners ($sourceImage, $radii)
	findSharp ($orig, $final)
	exit404BadReq ()
	imageFilenameCheck ($imageUrl)

Variables
const	MEMORY_TO_ALLOCATE '100M'
const	DEFAULT_IMAGE_QUALITY 90
const	DEFAULT_BACKGROUND_COLOR '000000'
const	ONLY_LOCAL_IMAGES true
const	ENABLE_IMAGEFILTER true
const	ENABLE_ROUNDCORNER true
const	ENABLE_IMAGEROTATE true
if(@get_magic_quotes_runtime()) if(function_exists('mb_http_output'))	$xoopsOption ['nocommon'] = true
	$xoopsLogger = XoopsLogger::getInstance()
	$imageId = isset($_GET['id']) ? (int)$_GET['id'] : false
	$imageUrl = isset($_GET['url']) ? (string)$_GET['url'] : (isset($_GET['src']) ? (string)$_GET['src'] : false)
if(!empty($imageId)) elseif(!empty($imageUrl))	else
	$edited_image_filename = 'editedimage_' . md5($_SERVER['REQUEST_URI']) . '_' . $imageFilename
	$cached_image = XoopsCache::read($edited_image_filename)
if(!isset($_GET['nocache']) &&!isset($_GET['noservercache']) &&!empty($cached_image) &&($cached_image['cached_time'] >=$imageCreatedTime))	$max_width = isset($_GET['width']) ? (int)$_GET['width'] : false
	$max_height = isset($_GET['height']) ? (int)$_GET['height'] : false
if(! $max_width && $max_height) elseif($max_width &&! $max_height) elseif(! $max_width &&! $max_height)	$color = isset($_GET['color']) ? preg_replace('/[^0-9a-fA-F]/', '', (string)$_GET['color']) : false
	$filter = isset($_GET['filter']) ? $_GET['filter'] : false
	$radius = isset($_GET['radius']) ? (string)$_GET['radius'] : false
	$angle = isset($_GET['angle']) ? (float)$_GET['angle'] : false
if(empty($_GET['width']) &&empty($_GET['height']) &&empty($_GET['color']) &&empty($_GET['filter']) &&empty($_GET['radius']) &&empty($_GET['angle']))	$offset_x = 0
	$offset_y = 0
if(isset($_GET['cropratio']))	$xRatio = $max_width / $imageWidth
	$yRatio = $max_height / $imageHeight
	$tn_height = $max_height
	$quality = isset($_GET['quality']) ? (int)$_GET['quality'] : DEFAULT_IMAGE_QUALITY
	$destination_image = imagecreatetruecolor($tn_width, $tn_height)
	$transparent = imagecolorallocatealpha($destination_image, 255, 255, 255, 127)
	$imageData = ob_get_contents()
	$imageCreatedTime = time()
	$cached_image ['edited_image_filename'] = $edited_image_filename
	$cached_image ['image_data'] = $imageData
	$cached_image ['cached_time'] = $imageCreatedTime
	$last_modified_string = gmdate('D, d M Y H:i:s', $imageCreatedTime) . ' GMT'
	$etag = md5($imageData)

Documentation des fonctions

doConditionalGet()

doConditionalGet	(		$etag,
			$lastModified
	)

Paramètres

$etag
$lastModified

Renvoie

null

exit404BadReq()

exit404BadReq

(

)

issue an error for bad request

Many different issues end up here, so message is generic 404. This keeps us from leaking info by probing

Voici le graphe des appelants de cette fonction :

findSharp()

findSharp	(		$orig,
			$final
	)

Paramètres

$orig
$final

Renvoie

mixed

imageCreateCorners()

imageCreateCorners	(		$sourceImage,
			$radii
	)

ref: http://www.tricksofit.com/2014/08/round-corners-on-image-using-php-and-gd-library

Paramètres

resource	$sourceImage	GD Image resource
int[]	$radii	array(top left, top right, bottom left, bottom right) of pixel radius for each corner. A 0 disables rounding on a corner.

Renvoie

resource

imageFilenameCheck()

imageFilenameCheck

(

$imageUrl

)

check local image url for possible issues

Paramètres

string

$imageUrl

url to local image starting at site root with a '/'

Renvoie

bool true if name is acceptable, exit if not

Voici le graphe d'appel pour cette fonction :

Documentation des variables

$angle

$angle = isset($_GET['angle']) ? (float)$_GET['angle'] : false

$cached_image [1/4]

$cached_image[ 'cached_time'] = $imageCreatedTime

$cached_image [2/4]

$cached_image[ 'edited_image_filename'] = $edited_image_filename

$cached_image [3/4]

$cached_image[ 'image_data'] = $imageData

$cached_image [4/4]

$cached_image = XoopsCache::read($edited_image_filename)

$color

if (! $max_width &&$max_height) elseif ( $max_width &&! $max_height) elseif (! $max_width &&! $max_height) $color = isset($_GET['color']) ? preg_replace('/[^0-9a-fA-F]/', '', (string)$_GET['color']) : false

$destination_image

$destination_image = imagecreatetruecolor($tn_width, $tn_height)

$edited_image_filename

$edited_image_filename = 'editedimage_' . md5($_SERVER['REQUEST_URI']) . '_' . $imageFilename

$etag

$etag = md5($imageData)

$filter

$filter = isset($_GET['filter']) ? $_GET['filter'] : false

$imageCreatedTime

$imageCreatedTime = time()

$imageData

$imageData = ob_get_contents()

$imageId

$imageId = isset($_GET['id']) ? (int)$_GET['id'] : false

$imageUrl

$imageUrl = isset($_GET['url']) ? (string)$_GET['url'] : (isset($_GET['src']) ? (string)$_GET['src'] : false)

$last_modified_string

$last_modified_string = gmdate('D, d M Y H:i:s', $imageCreatedTime) . ' GMT'

$max_height

$max_height = isset($_GET['height']) ? (int)$_GET['height'] : false

$max_width

if (!isset( $_GET[ 'nocache']) &&!isset( $_GET[ 'noservercache']) &&!empty( $cached_image) &&( $cached_image[ 'cached_time'] >=$imageCreatedTime)) $max_width = isset($_GET['width']) ? (int)$_GET['width'] : false

$offset_x

if (empty( $_GET[ 'width']) &&empty( $_GET[ 'height']) &&empty( $_GET[ 'color']) &&empty( $_GET[ 'filter']) &&empty( $_GET[ 'radius']) &&empty( $_GET[ 'angle'])) $offset_x = 0

$offset_y

$offset_y = 0

$quality

$quality = isset($_GET['quality']) ? (int)$_GET['quality'] : DEFAULT_IMAGE_QUALITY

$radius

$radius = isset($_GET['radius']) ? (string)$_GET['radius'] : false

$tn_height

$tn_height = $max_height

$transparent

$transparent = imagecolorallocatealpha($destination_image, 255, 255, 255, 127)

$xoopsLogger

$xoopsLogger = XoopsLogger::getInstance()

$xoopsOption

if ( @get_magic_quotes_runtime()) if (function_exists( 'mb_http_output')) $xoopsOption[ 'nocommon'] = true

$xRatio

if (isset( $_GET[ 'cropratio'])) $xRatio = $max_width / $imageWidth

$yRatio

$yRatio = $max_height / $imageHeight

DEFAULT_BACKGROUND_COLOR

const DEFAULT_BACKGROUND_COLOR '000000'

DEFAULT_IMAGE_QUALITY

const DEFAULT_IMAGE_QUALITY 90

else

if (!isset( $_GET[ 'nocache']) &&!isset( $_GET[ 'nobrowsercache'])) else

Valeur initiale :

{
    
    header('Content-type: image/gif')

ENABLE_IMAGEFILTER

const ENABLE_IMAGEFILTER true

ENABLE_IMAGEROTATE

const ENABLE_IMAGEROTATE true

ENABLE_ROUNDCORNER

const ENABLE_ROUNDCORNER true

MEMORY_TO_ALLOCATE

const MEMORY_TO_ALLOCATE '100M'

ONLY_LOCAL_IMAGES

const ONLY_LOCAL_IMAGES true