Return Svg avatars
Signed-off-by: John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>
This commit is contained in:
John Molakvoæ (skjnldsv)
parent
8e3382ceda
commit
adf3856d35
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@ -41,6 +41,7 @@ use OCP\IL10N;
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use OCP\IRequest;
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use OCP\IUserManager;
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use OCP\IUserSession;
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use OCP\AppFramework\Http\DataResponse;
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/**
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* Class AvatarController
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@ -113,6 +114,20 @@ class AvatarController extends Controller {
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/**
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* @NoAdminRequired
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* @NoCSRFRequired
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* @NoSameSiteCookieRequired
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* @PublicPage
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*
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* Shortcut to getAvatar
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*/
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public function getAvatarPng($userId, $size) {
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return $this->getAvatar($userId, $size, true);
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}
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/**
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* @NoAdminRequired
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* @NoCSRFRequired
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@ -121,24 +136,37 @@ class AvatarController extends Controller {
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*
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* @param string $userId
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* @param int $size
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* @param bool $png return png or not
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* @return JSONResponse|FileDisplayResponse
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*/
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public function getAvatar($userId, $size) {
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public function getAvatar($userId, $size, bool $png = false) {
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if ($size > 2048) {
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$size = 2048;
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} elseif ($size <= 0) {
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$size = 64;
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}
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try {
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$avatar = $this->avatarManager->getAvatar($userId)->getFile($size);
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$resp = new FileDisplayResponse($avatar,
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if ($png === false) {
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$avatar = $this->avatarManager->getAvatar($userId)->getAvatarVector($size);
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$resp = new DataDisplayResponse(
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$avatar,
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Http::STATUS_OK,
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['Content-Type' => $avatar->getMimeType()]);
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} catch (\Exception $e) {
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$resp = new Http\Response();
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$resp->setStatus(Http::STATUS_NOT_FOUND);
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return $resp;
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['Content-Type' => 'image/svg+xml'
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]);
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} else {
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try {
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$avatar = $this->avatarManager->getAvatar($userId)->getFile($size);
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$resp = new FileDisplayResponse(
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$avatar,
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Http::STATUS_OK,
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['Content-Type' => $avatar->getMimeType()
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]);
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} catch (\Exception $e) {
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$resp = new Http\Response();
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$resp->setStatus(Http::STATUS_NOT_FOUND);
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return $resp;
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}
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}
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// Cache for 30 minutes
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@ -42,6 +42,7 @@ $application->registerRoutes($this, [
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['name' => 'lost#setPassword', 'url' => '/lostpassword/set/{token}/{userId}', 'verb' => 'POST'],
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['name' => 'user#getDisplayNames', 'url' => '/displaynames', 'verb' => 'POST'],
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['name' => 'avatar#getAvatar', 'url' => '/avatar/{userId}/{size}', 'verb' => 'GET'],
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['name' => 'avatar#getAvatarPng', 'url' => '/avatar/{userId}/{size}/png', 'verb' => 'GET'],
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['name' => 'avatar#deleteAvatar', 'url' => '/avatar/', 'verb' => 'DELETE'],
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['name' => 'avatar#postCroppedAvatar', 'url' => '/avatar/cropped', 'verb' => 'POST'],
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['name' => 'avatar#getTmpAvatar', 'url' => '/avatar/tmp', 'verb' => 'GET'],
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@ -30,7 +30,6 @@
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namespace OC;
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use OC\User\User;
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use OCP\Files\NotFoundException;
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use OCP\Files\NotPermittedException;
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use OCP\Files\SimpleFS\ISimpleFile;
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@ -39,8 +38,9 @@ use OCP\IAvatar;
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use OCP\IConfig;
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use OCP\IImage;
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use OCP\IL10N;
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use OC_Image;
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use OCP\ILogger;
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use OC\User\User;
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use OC_Image;
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/**
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* This class gets and sets users avatars.
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@ -57,6 +57,12 @@ class Avatar implements IAvatar {
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private $logger;
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/** @var IConfig */
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private $config;
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/** @var string */
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private $svgTemplate = '
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<svg width="{size}" height="{size}" version="1.1" viewBox="0 0 {size} {size}" xmlns="http://www.w3.org/2000/svg">
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<rect width="100%" height="100%" fill="#{fill}"></rect>
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<text x="50%" y="{y}" style="font-weight:600;font-size:{font}px;font-family:\'Open Sans\';text-anchor:middle;fill:#fff">{letter}</text>
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</svg>';
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/**
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* constructor
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@ -68,10 +74,10 @@ class Avatar implements IAvatar {
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* @param IConfig $config
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*/
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public function __construct(ISimpleFolder $folder,
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IL10N $l,
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$user,
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ILogger $logger,
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IConfig $config) {
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IL10N $l,
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$user,
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ILogger $logger,
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IConfig $config) {
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$this->folder = $folder;
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$this->l = $l;
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$this->user = $user;
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@ -82,7 +88,7 @@ class Avatar implements IAvatar {
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/**
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* @inheritdoc
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*/
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public function get ($size = 64) {
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public function get($size = 64) {
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try {
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$file = $this->getFile($size);
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} catch (NotFoundException $e) {
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@ -111,17 +117,17 @@ class Avatar implements IAvatar {
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* @throws \Exception if the provided image is not valid
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* @throws NotSquareException if the image is not square
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* @return void
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*/
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public function set ($data) {
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*/
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public function set($data) {
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if($data instanceOf IImage) {
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if ($data instanceof IImage) {
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$img = $data;
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$data = $img->data();
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} else {
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$img = new OC_Image();
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if (is_resource($data) && get_resource_type($data) === "gd") {
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$img->setResource($data);
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} elseif(is_resource($data)) {
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} elseif (is_resource($data)) {
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$img->loadFromFileHandle($data);
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} else {
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try {
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@ -154,7 +160,7 @@ class Avatar implements IAvatar {
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}
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$this->remove();
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$file = $this->folder->newFile('avatar.'.$type);
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$file = $this->folder->newFile('avatar.' . $type);
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$file->putContent($data);
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try {
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@ -165,17 +171,17 @@ class Avatar implements IAvatar {
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//
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}
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$this->user->triggerChange('avatar', $file);
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}
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}
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/**
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* remove the users avatar
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* @return void
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*/
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public function remove () {
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*/
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public function remove() {
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$avatars = $this->folder->getDirectoryListing();
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$this->config->setUserValue($this->user->getUID(), 'avatar', 'version',
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(int)$this->config->getUserValue($this->user->getUID(), 'avatar', 'version', 0) + 1);
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(int) $this->config->getUserValue($this->user->getUID(), 'avatar', 'version', 0) + 1);
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foreach ($avatars as $avatar) {
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$avatar->delete();
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@ -235,7 +241,7 @@ class Avatar implements IAvatar {
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}
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if($this->config->getUserValue($this->user->getUID(), 'avatar', 'generated', null) === null) {
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if ($this->config->getUserValue($this->user->getUID(), 'avatar', 'generated', null) === null) {
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$generated = $this->folder->fileExists('generated') ? 'true' : 'false';
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$this->config->setUserValue($this->user->getUID(), 'avatar', 'generated', $generated);
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}
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@ -257,6 +263,35 @@ class Avatar implements IAvatar {
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}
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throw new NotFoundException;
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}
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/**
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* https://github.com/sebdesign/cap-height -- for 500px height
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* Open Sans cap-height is 0.72 and we want a 200px caps height size (0.4 letter-to-total-height ratio, 500*0.4=200). 200/0.72 = 278px.
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* Since we start from the baseline (text-anchor) we need to shift the y axis by 100px (half the caps height): 500/2+100=350 -->
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* {size} = 500
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* {fill} = hex color to fill
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* {y} = top to bottom baseline text-anchor y position
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* {font} = font size
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* {letter} = Letter to display
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*
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* Generate SVG avatar
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* @return string
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*
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*/
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public function getAvatarVector($size) {
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$userDisplayName = $this->user->getDisplayName();
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$bgRGB = $this->avatarBackgroundColor($userDisplayName);
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$bgHEX = sprintf("%02x%02x%02x", $bgRGB->r, $bgRGB->g, $bgRGB->b);
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$letter = mb_strtoupper(mb_substr($userDisplayName, 0, 1), 'UTF-8');
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$font = round($size * 0.4);
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$fontSize = round($font / 0.72);
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$y = round($size/2 + $font/2);
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$toReplace = ['{size}', '{fill}', '{y}', '{font}', '{letter}'];
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return str_replace($toReplace, [$size, $bgHEX, $y, $fontSize, $letter], $this->svgTemplate);
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}
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/**
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* @param string $userDisplayName
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@ -295,10 +330,10 @@ class Avatar implements IAvatar {
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* @param string $text text string
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* @param string $font font path
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* @param int $size font size
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* @param int $angle
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* @param int $angle
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* @return Array
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*/
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protected function imageTTFCenter($image, string $text, string $font, int $size, $angle = 0): Array {
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protected function imageTTFCenter($image, string $text, string $font, int $size, $angle = 0): array {
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// Image width & height
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$xi = imagesx($image);
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$yi = imagesy($image);
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@ -330,6 +365,7 @@ class Avatar implements IAvatar {
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$step[2] = ($ends[1]->b - $ends[0]->b) / $steps;
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return $step;
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}
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/**
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* Convert a string to an integer evenly
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* @param string $hash the text to parse
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@ -344,12 +380,11 @@ class Avatar implements IAvatar {
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$r = intval($color1->r + ($step[0] * $i));
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$g = intval($color1->g + ($step[1] * $i));
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$b = intval($color1->b + ($step[2] * $i));
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$palette[] = new Color($r, $g, $b);
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$palette[] = new Color($r, $g, $b);
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}
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return $palette;
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}
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/**
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* Convert a string to an integer evenly
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* @param string $hash the text to parse
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@ -361,7 +396,7 @@ class Avatar implements IAvatar {
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$result = array();
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// Splitting evenly the string
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for ($i=0; $i< strlen($hash); $i++) {
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for ($i = 0; $i < strlen($hash); $i++) {
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// chars in md5 goes up to f, hex:16
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$result[] = intval(substr($hash, $i, 1), 16) % 16;
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}
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@ -373,12 +408,11 @@ class Avatar implements IAvatar {
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return intval($final % $maximum);
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}
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/**
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* @param string $text
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* @return Color Object containting r g b int in the range [0, 255]
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*/
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function avatarBackgroundColor($text) {
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public function avatarBackgroundColor($text) {
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$hash = preg_replace('/[^0-9a-f]+/', '', $text);
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$hash = md5($hash);
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@ -387,6 +421,7 @@ class Avatar implements IAvatar {
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$red = new Color(182, 70, 157);
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$yellow = new Color(221, 203, 85);
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$blue = new Color(0, 130, 201); // Nextcloud blue
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// Number of steps to go from a color to another
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// 3 colors * 6 will result in 18 generated colors
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$steps = 6;
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@ -397,7 +432,7 @@ class Avatar implements IAvatar {
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$finalPalette = array_merge($palette1, $palette2, $palette3);
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return $finalPalette[$this->hashToInt($hash, $steps * 3 )];
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return $finalPalette[$this->hashToInt($hash, $steps * 3)];
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}
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public function userChanged($feature, $oldValue, $newValue) {
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