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implemented Identicon library as new default for comment icons, made Vizhash an optional alternative, refactored Vizhash and removed string lenghtening

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This commit is contained in:
El RIDO
2016-08-10 17:41:46 +02:00
parent 461aed8573
commit 3988b860b0
8 changed files with 162 additions and 87 deletions
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30
lib/Model/Comment.php
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@@ -15,6 +15,7 @@ namespace PrivateBin\Model;
use PrivateBin\Sjcl;
use PrivateBin\Persistence\TrafficLimiter;
use PrivateBin\Vizhash16x16;
use Identicon\Identicon;
use Exception;
/**
@@ -192,17 +193,26 @@ class Comment extends AbstractModel
}
$this->_data->meta->nickname = $nickname;
if ($this->_conf->getKey('vizhash')) {
// Generation of the anonymous avatar (Vizhash):
// If a nickname is provided, we generate a Vizhash.
// (We assume that if the user did not enter a nickname, he/she wants
// to be anonymous and we will not generate the vizhash.)
$vh = new Vizhash16x16();
$pngdata = $vh->generate(TrafficLimiter::getIp());
if ($pngdata != '') {
$this->_data->meta->vizhash = 'data:image/png;base64,' . base64_encode($pngdata);
// If a nickname is provided, we generate an icon based on a SHA512 HMAC
// of the users IP. (We assume that if the user did not enter a nickname,
// the user wants to be anonymous and we will not generate an icon.)
$icon = $this->_conf->getKey('icon');
if ($icon != 'none') {
$pngdata = '';
$hmac = TrafficLimiter::getHash();
if ($icon == 'identicon') {
$identicon = new Identicon();
$pngdata = $identicon->getImageDataUri($hmac, 16);
} elseif ($icon == 'vizhash') {
$vh = new Vizhash16x16();
$pngdata = 'data:image/png;base64,' . base64_encode(
$vh->generate($hmac)
);
}
if ($pngdata != '') {
$this->_data->meta->vizhash = $pngdata;
}
// Once the avatar is generated, we do not keep the IP address, nor its hash.
}
// Once the icon is generated, we do not keep the IP address hash.
}
}