watermark when showing pic

[okram]

well i think i should remove this lines from the watermark.php

Code: [Select]

if (!check_permission("auth_viewcat", $cat_id) || !check_permission("auth_viewimage", $cat_id) || !$image_row)
{
  die("No permission");
}
in that way it workks correctly..... id it good?

thanks

Rather than removing it, if you replace it

with :

Code: [Select]


if (!check_permission("auth_viewcat", $cat_id) || !check_permission("auth_viewimage", $cat_id) || !$image_row) {

show_error_page($lang['no_permission']);

} ###### End of if statement.


Will it work ?

As for this line :

$types = array(1 => "gif", 2 => "jpeg", 3 => "png");

it could always be

replaced with :

Code: [Select]


$types = str_replace(",",", ",$config['allowed_mediatypes']);




As for this one :

if (!$im2 = @$image_create_handle($image))
  {
    die("Error opening $image!");
  }

replace with :

Code: [Select]


if (!$im2 = @$image_create_handle($image)) {

show_error_page($lang['no_image_found']);

} ###### End of if statement.



well... what does exactly do the -> show_error_page() <- function?

[TheOracle]

well... what does exactly do the -> show_error_page() <- function?

It returns, in this case, the ' no permission ' page by keeping the site layout as it should. Otherwise, it will return a restricted message with a white page.

[impss]

If anyone is Interested this is the php file I use to add text to a image on the fly

Code: [Select]

<?php
//=========== change the text to display in the image
$text = 'YOURTEXT';
$imgfile= $_GET['get_image'];
$font = 'arial.ttf';
$ext=substr($imgfile,-3);
$ext=strtolower($ext);

if($ext=="jpg" || $ext=="jpe") $im=@imagecreatefromjpeg("$imgfile");
elseif ($ext=="gif") $im=@imagecreatefromgif("$imgfile"); 
else {print "Unknown image format"; exit;}

 if (!$im) { /* See if it failed */
       $im = ImageCreate (150, 30); /* Create a blank image */
       $bgc = ImageColorAllocate ($im, 255, 255, 255);
       $tc  = ImageColorAllocate ($im, 0, 0, 0);
       ImageFilledRectangle ($im, 0, 0, 150, 30, $bgc); 
       /* Output an errmsg */
       ImageString($im, 1, 5, 5, "Error loading $imgfile", $tc); 
return $im;
   }

$x=imagesx($im);
$y=imagesy($im);
$fontsize=$x/40;
$fontsize=floor($fontsize);
if($fontsize<10) $fontsize=10;

$white = imagecolorallocate($im, 255, 255, 255);
$black = imagecolorallocate($im, 0, 0, 0);

imagettftext($im, $fontsize, 0, 12, $fontsize+8, $black, $font, $text);
imagettftext($im, $fontsize, 0, 10, $fontsize+6, $white, $font, $text);

if($ext=="gif") 
{
header("Content-type: image/gif");
imageGIF($im);
}
else
{
header("Content-type: image/jpeg");
imagejpeg($im);

}
imagedetroy($im);
?>

[TheOracle]

Hum ... are these functions intended to be used as part of the execution of 4images ?

[okram]

If anyone is Interested this is the php file I use to add text to a image on the fly

Code: [Select]

<?php
//=========== change the text to display in the image
$text = 'YOURTEXT';
$imgfile= $_GET['get_image'];
$font = 'arial.ttf';
$ext=substr($imgfile,-3);
$ext=strtolower($ext);

if($ext=="jpg" || $ext=="jpe") $im=@imagecreatefromjpeg("$imgfile");
elseif ($ext=="gif") $im=@imagecreatefromgif("$imgfile"); 
else {print "Unknown image format"; exit;}

 if (!$im) { /* See if it failed */
       $im = ImageCreate (150, 30); /* Create a blank image */
       $bgc = ImageColorAllocate ($im, 255, 255, 255);
       $tc  = ImageColorAllocate ($im, 0, 0, 0);
       ImageFilledRectangle ($im, 0, 0, 150, 30, $bgc); 
       /* Output an errmsg */
       ImageString($im, 1, 5, 5, "Error loading $imgfile", $tc); 
return $im;
   }

$x=imagesx($im);
$y=imagesy($im);
$fontsize=$x/40;
$fontsize=floor($fontsize);
if($fontsize<10) $fontsize=10;

$white = imagecolorallocate($im, 255, 255, 255);
$black = imagecolorallocate($im, 0, 0, 0);

imagettftext($im, $fontsize, 0, 12, $fontsize+8, $black, $font, $text);
imagettftext($im, $fontsize, 0, 10, $fontsize+6, $white, $font, $text);

if($ext=="gif") 
{
header("Content-type: image/gif");
imageGIF($im);
}
else
{
header("Content-type: image/jpeg");
imagejpeg($im);

}
imagedetroy($im);
?>

I used that for sometime, but i decided not to use a text watermark but a image watermark... As far as i know the imagettftext() function requires a special library (freefonttype  : i do not remember the exact name) Once it didn't worked, so i started with an image watermark

Regards

[impss]

Hum ... are these functions intended to be used as part of the execution of 4images ?

If your refering to me, I used this code in place of this mods watermark.php

[okram]

Hum ... are these functions intended to be used as part of the execution of 4images ?

which functions do you mean?

[TheOracle]

As far as i know the imagettftext() function requires a special library (freefonttype  Question i do not remember the exact name)

Correct. The name is GD Library which must be installed from the server end in order, for this MOD, to work properly.

[TheOracle]

which functions do you mean?

Sorry, I meant codings - not functions. My bad. Are these codings intended to work under 4images ?

[impss]

I used that for sometime, but i decided not to use a text watermark but a image watermark... As far as i know the imagettftext() function requires a special library (freefonttype  : i do not remember the exact name) Once it didn't worked, so i started with an image watermark

Regards

Yea, I was just offering this as another option

[okram]

Correct. The name is GD Library which must be installed from the server end in order, for this MOD, to work properly.

No i didn't mean the gd library... that's for copying 1 image into another... for adding text to 1 image there's another library that muist be installed... let me find out more about this library and then i will make a new post here

[okram]

Sorry, I meant codings - not functions. My bad. Are these codings intended to work under 4images ?

If you're refering to this watermark codes, yeah they are intended to work along with 4images... it's just a mod for it... i guess

Regards

[okram]

let me find out more about this library and then i will make a new post here

This function requires both the GD library and the FreeType library....

yeah that's it... the name is freetype library...

Please read this article -> http://cheetahscripts.com/modules.php?name=PHP_Manual&page=function.imagettftext.html <- That's what i meant

Regards

[TheOracle]

Thanks for mentionning about the freetype module.

As for :

it's just a mod for it... i guess

Well ... actually, I don't mean to be rude but, even if the idea is great, it is a highly unsecured one as no sessions protection has been preset in that MOD. 

[okram]

Well ... actually, I don't mean to be rude but, even if the idea is great, it is a highly unsecured one as no sessions protection has been preset in that MOD. 

I think there's no a strong reason to prevent the direct access to this file. At least in my case, it's not in my plans setting a complete high secure system for this page... all we want is prevent the direct access from standard users... i mean we don't expect all visitors know php programming or stuff like that.. as i said... all we want is prevent the directaccess to standard users, and those users represent the 95 % or more of our visitors... so i think no secure systems are required for this last mod, the one that sets a session variable...

Regards