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<?php |
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namespace Ballen\Gravel; |
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/** |
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* Gravel |
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* |
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* Gravel is a PHP library which provides easy access to get and display Gravatars. |
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* |
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* @author Bobby Allen <[email protected]> |
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* @license http://opensource.org/licenses/MIT |
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* @link https://github.com/allebb/gravel |
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* @link http://www.bobbyallen.me |
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* |
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*/ |
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class Gravatar |
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{ |
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/** |
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* * |
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* The standard 'HTTP' (non-secure) URL to gravatar.com. |
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*/ |
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const HTTP_GRAVATAR_URL = 'http://www.gravatar.com/'; |
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/** |
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* The secure 'HTTPS' URL to gravatar.com. |
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*/ |
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const HTTPS_GRAVATAR_URL = 'https://secure.gravatar.com/'; |
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/** |
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* Instructs not to load any image if none is associated with the email hash, instead return an HTTP 404 (File Not Found) response. |
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* @see https://en.gravatar.com/site/implement/images/ |
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*/ |
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const DEFAULT_404 = "404"; |
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/** |
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* A simple, cartoon-style silhouetted outline of a person "Mystery-man" (does not vary by email hash) |
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* @see https://en.gravatar.com/site/implement/images/ |
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*/ |
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const DEFAULT_MYSTERYMAN = "mm"; |
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/** |
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* A geometric pattern based on an email hash |
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* @see https://en.gravatar.com/site/implement/images/ |
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*/ |
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const DEFAULT_IDENTICON = "identicon"; |
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/** |
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* A generated 'monster' with different colors, faces, etc |
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* @see https://en.gravatar.com/site/implement/images/ |
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*/ |
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const DEFAULT_MONSTER = "monsterid"; |
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/** |
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* Generated faces with differing features and backgrounds |
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* @see https://en.gravatar.com/site/implement/images/ |
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*/ |
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const DEFAULT_WAVATAR = "wavatar"; |
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/** |
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* Awesome generated, 8-bit arcade-style pixelated faces |
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* @see https://en.gravatar.com/site/implement/images/ |
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*/ |
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const DEFAULT_RETRO = "retro"; |
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/** |
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* A transparent PNG image (border added to HTML below for demonstration purposes) |
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* @see https://en.gravatar.com/site/implement/images/ |
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*/ |
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const DEFAULT_BLANK = "blank"; |
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/** |
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* Suitable for display on all websites with any audience type. |
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* @see https://en.gravatar.com/site/implement/images/ |
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*/ |
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const RATING_G = 'g'; |
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/** |
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* May contain rude gestures, provocatively dressed individuals, the lesser swear words, or mild violence. |
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* @see https://en.gravatar.com/site/implement/images/ |
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*/ |
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const RATING_PG = 'pg'; |
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/** |
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* May contain such things as harsh profanity, intense violence, nudity, or hard drug use. |
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* @see https://en.gravatar.com/site/implement/images/ |
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*/ |
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const RATING_R = 'r'; |
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/** |
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* May contain hardcore sexual imagery or extremely disturbing violence. |
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* @see https://en.gravatar.com/site/implement/images/ |
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*/ |
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const RATING_X = 'x'; |
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/** |
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* The email address of which you want to return the Gravatar for. |
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* @var string Email address for the user to return the Gravatar for. |
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*/ |
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private $email; |
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/** |
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* The size of the Gravatar to return. |
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* @var int The size of the Gravatar to display. |
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*/ |
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private $size = 120; |
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/** |
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* Options for the default avatar to return when the avatar does not meet |
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* the rating threshold or when no gravar is found for the user. |
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* @var string Default gravatar image. |
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*/ |
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private $default_avatar = self::DEFAULT_404; |
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/** |
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* Set the threshold of the Gravatar image. |
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* @var string Rating setting. (Default is set to 'g') |
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*/ |
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private $rating = self::RATING_G; |
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/** |
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* Enable Gravatar URL over HTTPS (good for sites using HTTPS!) |
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* @var bool Use the HTTPS protocol to display avatar images. (Default is HTTPS) |
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*/ |
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private $secure = true; |
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/** |
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* Override the generated Gravatar URL with a custom one. |
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* @var null|string Custom avatar URL |
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*/ |
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private $overrideAvatarUrl = null; |
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/** |
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* Class constructor. |
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* @param string $email Optionally construct the object with the email address. |
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*/ |
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public function __construct($email = null) |
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{ |
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if (!is_null($email)) { |
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$this->setEmail($email); |
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} |
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} |
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/** |
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* Generates the Hash for the email address suppiled. |
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* @return string md5 hash of the email supplied. |
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*/ |
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private function generateAddressHash() |
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{ |
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return md5($this->email); |
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} |
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/** |
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* Set sthe email address for the person. |
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* @param string $email The Email address of the Gravatar account. |
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* @return Gravatar |
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*/ |
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public function setEmail($email) |
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{ |
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$this->email = trim(strtolower($email)); |
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return $this; |
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} |
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/** |
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* Set the avatar size you would like to get back. |
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* @param int $size The size of the Gravatar to get back. (Default is 120) |
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* @return Gravatar |
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*/ |
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public function setSize($size = 120) |
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{ |
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$this->size = (int)$size; |
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return $this; |
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} |
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/** |
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* Options for the default avatar to return when the avatar does not meet |
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* the rating threshold or when no gravar is found for the user. Valid options |
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* are: |
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* |
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* '404' : do not load any image if none is associated with the email hash, instead return an HTTP 404 (File Not Found) response |
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* 'mm' : (mystery-man) a simple, cartoon-style silhouetted outline of a person (does not vary by email hash) |
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* 'identicon': a geometric pattern based on an email hash |
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* 'monsterid': a generated 'monster' with different colors, faces, etc |
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* 'wavatar' : generated faces with differing features and backgrounds |
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* 'retro' : awesome generated, 8-bit arcade-style pixelated faces |
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* 'blank' : a transparent PNG image (border added to HTML below for demonstration purposes) |
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* @param string $option The prefix of the default avatar to return if no valid Gravatar is found for the supplied email address. |
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* @return Gravatar |
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*/ |
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public function setDefaultAvatar($option) |
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{ |
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$this->default_avatar = $option; |
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return $this; |
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} |
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/** |
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* Set the rating threshold, will not return a Gravatar unless its in this band. |
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* Valid options are ('g' is default!) |
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* |
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* 'g' : suitable for display on all websites with any audience type. |
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* 'pg': may contain rude gestures, provocatively dressed individuals, the lesser swear words, or mild violence. |
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* 'r' : may contain such things as harsh profanity, intense violence, nudity, or hard drug use. |
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* 'x' : may contain hardcore sexual imagery or extremely disturbing violence. |
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* @param string $rating |
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* @return Gravatar |
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*/ |
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public function setRating($rating) |
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{ |
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$this->rating = $rating; |
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return $this; |
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} |
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/** |
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* Set the protocol to be used for the image URL to HTTPS. |
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* @return Gravatar |
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*/ |
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public function setUseHTTPS() |
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{ |
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$this->secure = true; |
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return $this; |
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} |
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/** |
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* Set the protocol to be used for the image URL to HTTP. |
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* @return Gravatar |
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*/ |
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public function setUseHTTP() |
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{ |
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$this->secure = false; |
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return $this; |
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} |
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/** |
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* Overrides the generated Gravatar with a custom avatar URL. |
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* @param string $url |
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* @return Gravatar |
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*/ |
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public function setCustomAvatarUrl($url) |
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{ |
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$this->overrideAvatarUrl = $url; |
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return $this; |
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} |
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/** |
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* Builds and returns the final Gravatar URL. |
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* @return string The URL to the Gravatar or Custom Avatar Image. |
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*/ |
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public function buildGravatarUrl() |
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{ |
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if ($this->overrideAvatarUrl !== null) { |
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return $this->overrideAvatarUrl; |
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} |
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$base_url = self::HTTPS_GRAVATAR_URL; |
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if (!$this->secure) { |
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$base_url = self::HTTP_GRAVATAR_URL; |
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} |
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return $base_url . 'avatar/' . $this->generateAddressHash() . '?s=' . $this->size . '&r=' . $this->rating . '&d=' . $this->default_avatar; |
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} |
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/** |
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* Returns the Gravar URL of the current instance. |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return $this->buildGravatarUrl(); |
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} |
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} |
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