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200 lines
5.5 KiB
200 lines
5.5 KiB
<?php
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namespace p3k;
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use DOMDocument, IMagick, Exception;
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use Config, ORM;
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function redis() {
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static $client;
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if(empty($client))
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$client = new \Predis\Client(class_exists('Config') ? Config::$redis : 'tcp://127.0.0.1:6379');
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return $client;
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}
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function bs()
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{
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static $pheanstalk;
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if(empty($pheanstalk)) {
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if(class_exists('Config'))
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$pheanstalk = new \Pheanstalk\Pheanstalk(Config::$beanstalkServer, Config::$beanstalkPort);
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else
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$pheanstalk = new \Pheanstalk\Pheanstalk('127.0.0.1', 11300);
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}
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return $pheanstalk;
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}
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function initdb() {
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ORM::configure('mysql:host=' . Config::$db['host'] . ';dbname=' . Config::$db['database']);
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ORM::configure('username', Config::$db['username']);
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ORM::configure('password', Config::$db['password']);
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}
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function e($text) {
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return htmlspecialchars($text);
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}
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function k($a, $k, $default=null) {
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if(is_array($k)) {
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$result = true;
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foreach($k as $key) {
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$result = $result && array_key_exists($key, $a);
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}
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return $result;
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} else {
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if(is_array($a) && array_key_exists($k, $a))
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return $a[$k];
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elseif(is_object($a) && property_exists($a, $k))
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return $a->$k;
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else
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return $default;
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}
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}
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function random_string($len) {
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$charset='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
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$str = '';
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$c = strlen($charset)-1;
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for($i=0; $i<$len; $i++) {
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$str .= $charset[mt_rand(0, $c)];
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}
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return $str;
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}
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// Returns true if $needle is the end of the $haystack
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function str_ends_with($haystack, $needle) {
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if($needle == '' || $haystack == '') return false;
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return strpos(strrev($haystack), strrev($needle)) === 0;
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}
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// Sets up the session.
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// If create is true, the session will be created even if there is no cookie yet.
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// If create is false, the session will only be set up in PHP if they already have a session cookie.
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function session_setup($create=false, $lifetime=2592000) {
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if($create || isset($_COOKIE[session_name()])) {
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session_set_cookie_params($lifetime);
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@session_start();
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}
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}
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function session($key, $default=null) {
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if(isset($_SESSION) && array_key_exists($key, $_SESSION))
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return $_SESSION[$key];
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else
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return $default;
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}
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function flash($key) {
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if(isset($_SESSION) && isset($_SESSION[$key])) {
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$value = $_SESSION[$key];
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unset($_SESSION[$key]);
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return $value;
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}
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}
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function http_header_case($str) {
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$str = str_replace('-', ' ', $str);
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$str = ucwords(strtolower($str));
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$str = str_replace(' ', '-', $str);
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return $str;
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}
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function http_build_query($params) {
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// PHP's built-in http_build_query function encodes arrays with numeric indexes,
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// like foo[0]=bar&foo[0]=baz
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// This function removes the numeric indexes so that it's conformant with Micropub
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return preg_replace('/%5B[0-9]+%5D/', '%5B%5D', \http_build_query($params));
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}
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function html_to_dom_document($html) {
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// Parse the source body as HTML
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$doc = new DOMDocument();
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libxml_use_internal_errors(true); # suppress parse errors and warnings
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$body = mb_convert_encoding($html, 'HTML-ENTITIES', mb_detect_encoding($html));
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@$doc->loadHTML($body, LIBXML_NOWARNING|LIBXML_NOERROR);
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libxml_clear_errors();
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return $doc;
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}
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function xml_to_dom_document($xml) {
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// Parse the source body as XML
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$doc = new DOMDocument();
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libxml_use_internal_errors(true); # suppress parse errors and warnings
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// $body = mb_convert_encoding($xml, 'HTML-ENTITIES', mb_detect_encoding($xml));
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$body = $xml;
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$doc->loadXML($body);
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libxml_clear_errors();
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return $doc;
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}
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// Reads the exif rotation data and actually rotates the photo.
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// Only does anything if the exif library is loaded, otherwise is a noop.
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function correct_photo_rotation($filename) {
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if(class_exists('IMagick')) {
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try {
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$image = new IMagick($filename);
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$orientation = $image->getImageOrientation();
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switch($orientation) {
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case IMagick::ORIENTATION_BOTTOMRIGHT:
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$image->rotateImage(new ImagickPixel('#00000000'), 180);
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break;
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case IMagick::ORIENTATION_RIGHTTOP:
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$image->rotateImage(new ImagickPixel('#00000000'), 90);
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break;
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case IMagick::ORIENTATION_LEFTBOTTOM:
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$image->rotateImage(new ImagickPixel('#00000000'), -90);
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break;
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}
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$image->setImageOrientation(IMagick::ORIENTATION_TOPLEFT);
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$image->writeImage($filename);
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} catch(Exception $e){}
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}
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}
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/**
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* Converts base 10 to base 60.
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* http://tantek.pbworks.com/NewBase60
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* @param int $n
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* @return string
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*/
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function b10to60($n)
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{
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$s = "";
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$m = "0123456789ABCDEFGHJKLMNPQRSTUVWXYZ_abcdefghijkmnopqrstuvwxyz";
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if ($n==0)
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return 0;
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while ($n>0)
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{
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$d = $n % 60;
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$s = $m[$d] . $s;
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$n = ($n-$d)/60;
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}
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return $s;
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}
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/**
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* Converts base 60 to base 10, with error checking
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* http://tantek.pbworks.com/NewBase60
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* @param string $s
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* @return int
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*/
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function b60to10($s)
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{
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$n = 0;
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for($i = 0; $i < strlen($s); $i++) // iterate from first to last char of $s
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{
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$c = ord($s[$i]); // put current ASCII of char into $c
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if ($c>=48 && $c<=57) { $c=$c-48; }
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else if ($c>=65 && $c<=72) { $c-=55; }
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else if ($c==73 || $c==108) { $c=1; } // typo capital I, lowercase l to 1
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else if ($c>=74 && $c<=78) { $c-=56; }
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else if ($c==79) { $c=0; } // error correct typo capital O to 0
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else if ($c>=80 && $c<=90) { $c-=57; }
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else if ($c==95) { $c=34; } // underscore
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else if ($c>=97 && $c<=107) { $c-=62; }
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else if ($c>=109 && $c<=122) { $c-=63; }
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else { $c = 0; } // treat all other noise as 0
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$n = (60 * $n) + $c;
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}
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return $n;
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}
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