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phorge/src/applications/files/builtin/PhabricatorFilesComposeAvatarBuiltinFile.php
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PhabricatorFilesComposeAvatarBuiltinFile.php
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<?php
final class PhabricatorFilesComposeAvatarBuiltinFile
extends PhabricatorFilesBuiltinFile {
private $icon;
private $color;
private $border;
private $maps = array();
const VERSION = 'v1';
public function updateUser(PhabricatorUser $user) {
$username = $user->getUsername();
$image_map = $this->getMap('image');
$initial = phutil_utf8_strtoupper(substr($username, 0, 1));
$pack = $this->pickMap('pack', $username);
$icon = "alphanumeric/{$pack}/{$initial}.png";
if (!isset($image_map[$icon])) {
$icon = "alphanumeric/{$pack}/_default.png";
}
$border = $this->pickMap('border', $username);
$color = $this->pickMap('color', $username);
$data = $this->composeImage($color, $icon, $border);
$name = $this->getImageDisplayName($color, $icon, $border);
$unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
$file = PhabricatorFile::newFromFileData(
$data,
array(
'name' => $name,
'profile' => true,
'canCDN' => true,
));
$user
->setDefaultProfileImagePHID($file->getPHID())
->setDefaultProfileImageVersion(self::VERSION)
->saveWithoutIndex();
unset($unguarded);
return $file;
}
private function getMap($map_key) {
if (!isset($this->maps[$map_key])) {
switch ($map_key) {
case 'pack':
$map = $this->newPackMap();
break;
case 'image':
$map = $this->newImageMap();
break;
case 'color':
$map = $this->newColorMap();
break;
case 'border':
$map = $this->newBorderMap();
break;
default:
throw new Exception(pht('Unknown map "%s".', $map_key));
}
$this->maps[$map_key] = $map;
}
return $this->maps[$map_key];
}
private function pickMap($map_key, $username) {
$map = $this->getMap($map_key);
$seed = $username.'_'.$map_key;
$key = PhabricatorHash::digestToRange($seed, 0, count($map) - 1);
return $map[$key];
}
public function setIcon($icon) {
$this->icon = $icon;
return $this;
}
public function getIcon() {
return $this->icon;
}
public function setColor($color) {
$this->color = $color;
return $this;
}
public function getColor() {
return $this->color;
}
public function setBorder($border) {
$this->border = $border;
return $this;
}
public function getBorder() {
return $this->border;
}
public function getBuiltinFileKey() {
$icon = $this->getIcon();
$color = $this->getColor();
$border = implode(',', $this->getBorder());
$desc = "compose(icon={$icon}, color={$color}, border={$border}";
$hash = PhabricatorHash::digestToLength($desc, 40);
return "builtin:{$hash}";
}
public function getBuiltinDisplayName() {
return $this->getImageDisplayName(
$this->getIcon(),
$this->getColor(),
$this->getBorder());
}
private function getImageDisplayName($icon, $color, $border) {
$border = implode(',', $border);
return "{$icon}-{$color}-{$border}.png";
}
public function loadBuiltinFileData() {
return $this->composeImage(
$this->getColor(),
$this->getIcon(),
$this->getBorder());
}
private function composeImage($color, $image, $border) {
// If we don't have the GD extension installed, just return a static
// default profile image rather than trying to compose a dynamic one.
if (!function_exists('imagecreatefromstring')) {
$root = dirname(phutil_get_library_root('phabricator'));
$default_path = $root.'/resources/builtin/profile.png';
return Filesystem::readFile($default_path);
}
$color_const = hexdec(trim($color, '#'));
$true_border = self::rgba2gd($border);
$image_map = $this->getMap('image');
$data = Filesystem::readFile($image_map[$image]);
$img = imagecreatefromstring($data);
// 4 pixel border at 50x50, 32 pixel border at 400x400
$canvas = imagecreatetruecolor(400, 400);
$image_fill = imagefill($canvas, 0, 0, $color_const);
if (!$image_fill) {
throw new Exception(
pht('Failed to save builtin avatar image data (imagefill).'));
}
$border_thickness = imagesetthickness($canvas, 64);
if (!$border_thickness) {
throw new Exception(
pht('Failed to save builtin avatar image data (imagesetthickness).'));
}
$image_rectangle = imagerectangle($canvas, 0, 0, 400, 400, $true_border);
if (!$image_rectangle) {
throw new Exception(
pht('Failed to save builtin avatar image data (imagerectangle).'));
}
$image_copy = imagecopy($canvas, $img, 0, 0, 0, 0, 400, 400);
if (!$image_copy) {
throw new Exception(
pht('Failed to save builtin avatar image data (imagecopy).'));
}
return PhabricatorImageTransformer::saveImageDataInAnyFormat(
$canvas,
'image/png');
}
/**
* Convert a color from RGBA to a value usable in PHP-GD.
* Each RGB color should be expressed as an integer from 0 to 255.
* The Alpha Channel should be expressed as a float from 0 to 1.
* @param array $rgba array( int Red, int Green, int Blue, float Alpha )
* @return int
*/
private static function rgba2gd($rgba) {
// When working with a truecolor image, we can use bitwise operations
// https://www.php.net/manual/en/function.imagecolorallocate.php#49168
$r = $rgba[0];
$g = $rgba[1];
$b = $rgba[2];
$a = $rgba[3];
$a = round(((1 - $a) * 255), 0);
return ($a << 24) | ($r << 16) | ($g << 8) | $b;
}
private function newImageMap() {
$root = dirname(phutil_get_library_root('phabricator'));
$root = $root.'/resources/builtin/alphanumeric/';
$map = array();
$list = id(new FileFinder($root))
->withType('f')
->withFollowSymlinks(true)
->find();
foreach ($list as $file) {
$map['alphanumeric/'.$file] = $root.$file;
}
return $map;
}
private function newPackMap() {
$root = dirname(phutil_get_library_root('phabricator'));
$root = $root.'/resources/builtin/alphanumeric/';
$map = id(new FileFinder($root))
->withType('d')
->withFollowSymlinks(false)
->find();
$map = array_values($map);
return $map;
}
private function newBorderMap() {
return array(
array(0, 0, 0, 0),
array(0, 0, 0, 0.3),
array(255, 255, 255, 0.4),
array(255, 255, 255, 0.7),
);
}
private function newColorMap() {
// Via: http://tools.medialab.sciences-po.fr/iwanthue/
return array(
'#335862',
'#2d5192',
'#3c5da0',
'#99cd86',
'#704889',
'#5ac59e',
'#984060',
'#33d4d1',
'#9c4050',
'#20d8fd',
'#944937',
'#4bd0e3',
'#a25542',
'#4eb4f3',
'#6da8ec',
'#545608',
'#829ce5',
'#68681d',
'#607bc2',
'#4b69ad',
'#236ead',
'#31a0de',
'#4f8ed0',
'#846f2a',
'#bdb0f0',
'#518342',
'#9166aa',
'#5e904e',
'#f79dcc',
'#158e6b',
'#e189b7',
'#3ba984',
'#a85582',
'#4cccb7',
'#863d67',
'#84c08c',
'#7f4c7f',
'#a1bb7a',
'#65558f',
'#445082',
'#c9ca8e',
'#265582',
'#f4b189',
'#265582',
'#40b8e1',
'#814a28',
'#80c8f6',
'#cf7b5d',
'#1db5c7',
'#c0606e',
'#299a89',
'#ef8ead',
'#296437',
'#d39edb',
'#507436',
'#b888c9',
'#476025',
'#9987c5',
'#7867a3',
'#769b5a',
'#c46e9d',
'#437d4e',
'#d17492',
'#115e41',
'#ec8794',
'#297153',
'#d67381',
'#57c2c3',
'#bc607f',
'#86ceac',
'#7e3e53',
'#72c8b8',
'#884349',
'#45a998',
'#faa38c',
'#265582',
'#265582',
'#e4b788',
'#265582',
'#bbbc81',
'#265582',
'#ccb781',
'#265582',
'#eb957f',
'#15729c',
'#cf996f',
'#369bc5',
'#b6685d',
'#2da0a1',
'#d38275',
'#217e70',
'#ec9da1',
'#146268',
'#e8aa95',
'#3c6796',
'#8da667',
'#935f93',
'#69a573',
'#ae78ad',
'#569160',
'#d898be',
'#8eb4e8',
'#5e622c',
'#929ad3',
'#6c8548',
'#576196',
'#aed0a0',
'#694e79',
'#9abb8d',
'#8c5175',
'#6bb391',
'#8b4a5f',
'#519878',
'#ae7196',
'#3d8465',
'#e69eb3',
'#48663d',
'#cdaede',
'#71743d',
'#63acda',
'#7b5d30',
'#66bed6',
'#3585b0',
'#5880b0',
'#739acc',
'#48a3ba',
'#9d565b',
'#7fc4ca',
'#99566b',
'#94cabf',
'#7b4b49',
'#b1c8eb',
'#4e5632',
'#ecb2c3',
'#2d6158',
'#cf8287',
'#25889f',
'#b2696d',
'#6bafb6',
'#8c5744',
'#84b9d6',
'#9db3d6',
'#777cad',
'#826693',
'#86a779',
'#9d7fad',
'#b193c2',
'#547348',
'#d5adcb',
'#3f674d',
'#c98398',
'#66865a',
'#b2add6',
'#5a623d',
'#9793bb',
'#3c5472',
'#d5c5a1',
'#5e5a7f',
'#2c647e',
'#d8b194',
'#49607f',
'#c7b794',
'#335862',
'#e3aba7',
'#335862',
'#d9b9ad',
'#335862',
'#c48975',
'#347b81',
'#ad697e',
'#799a6d',
'#916b88',
'#69536b',
'#b4c4ad',
'#845865',
'#96b89d',
'#706d92',
'#9aa27a',
'#5b7292',
'#bc967b',
'#417792',
'#ce9793',
'#335862',
'#c898a5',
'#527a5f',
'#b38ba9',
'#648d72',
'#986b78',
'#79afa4',
'#966461',
'#50959b',
'#b27d7a',
'#335862',
'#335862',
'#bcadc4',
'#706343',
'#749ebc',
'#8c6a50',
'#92b8c4',
'#758cad',
'#868e67',
'#335862',
'#335862',
'#335862',
'#ac7e8b',
'#77a185',
'#807288',
'#636f51',
'#a192a9',
'#467a70',
'#9b7d73',
'#335862',
'#335862',
'#8c9c85',
'#335862',
'#81645a',
'#5f9489',
'#335862',
'#789da8',
'#335862',
'#72826c',
'#335862',
'#5c8596',
'#335862',
'#456a74',
'#335862',
'#335862',
'#335862',
);
}
}

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