Initial commit: plantilla base PHP para webs Acai CMS
This commit is contained in:
Jordan
226
cms/lib/common.php
Executable file
226
cms/lib/common.php
Executable file
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<?php
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global $cachedSchemas;
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$cachedSchemas = [];
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function protocol() {
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return isHTTPS() ? "https" : "http";
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}
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function isHTTPS() {
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return
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(!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off')
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|| $_SERVER['SERVER_PORT'] == 443;
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}
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function loadPlugins() {
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// load plugins
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if (file_exists($GLOBALS["APP"]["pluginsdir"]."/index.php")){
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require_once $GLOBALS["APP"]["pluginsdir"]."/index.php";
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}
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}
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function loadINI($filepath) {
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global $cachedSchemas;
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if(isset($cachedSchemas[$filepath])) return $cachedSchemas[$filepath];
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// error checking
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if (!file_exists($filepath)) { die("Error: Couldn't find ini file '$filepath'"); }
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// load ini file
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$iniValues = @parse_ini_file($filepath, true);
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if (@$php_errormsg) { die(__FUNCTION__ . ": $php_errormsg"); }
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$iniValues = _decodeIniValues($iniValues);
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$cachedSchemas[$filepath] = $iniValues;
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return $iniValues;
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}
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function saveINI($filepath, $array, $sortKeys = 0) {
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$globals = '';
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$sections = '';
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$invalidKeyRegexp = '/[^a-zA-Z0-9\-\_\.]/i'; # dis-allowed chars[{}|&~![()"] (from https://ca.php.net/parse_ini_file)
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$filename = pathinfo($filepath, PATHINFO_BASENAME);
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// encode values
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$array = _encodeIniValues($array);
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### get ini data
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if ($sortKeys) { ksort($array); }
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foreach ($array as $key => $value) {
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# save sub-sections
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if (is_array($value)) {
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$sections .= "\n[{$key}]\n";
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$childArray = $value;
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foreach ($childArray as $childKey => $childValue) {
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if (preg_match($invalidKeyRegexp, $childKey)) { die("Error: Invalid character(s) in key '".htmlspecialchars($childKey)."', only the following chars are allowed in key names: a-z, A-Z, 0-9, -, _, . Filename: $filename"); }
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$needsQuotes = !is_numeric($childValue) && !is_bool($childValue);
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if ($needsQuotes) { $sections .= "$childKey = \"$childValue\"\n"; }
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else { $sections .= "$childKey = $childValue\n"; }
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}
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}
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# save global keys
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else {
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if (preg_match($invalidKeyRegexp, $key)) { die("Error: Invalid character(s) in key '".htmlspecialchars($key)."', the following chars aren't allowed in key names: a-z, A-Z, 0-9, -, _, . Filename: $filename"); }
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$needsQuotes = !is_numeric($value) && !is_bool($value);
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if ($needsQuotes) { $globals .= "$key = \"$value\"\n"; }
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else { $globals .= "$key = $value\n"; }
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}
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}
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# create ini content
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$content = ";<?php die('This is not a program file.'); exit; ?>\n\n"; # prevent file from being executed
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$content .= $globals;
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$content .= $sections;
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# error checking
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# save ini file
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if (file_exists($filepath) && !is_writable($filepath)) { die("Error writing to '$filepath'!<br/>\nFile isn't writable, check permissions!"); }
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file_put_contents($filepath, $content) || die("Error writing to '$filepath'!");
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}
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function _encodeIniValues($array) {
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static $matches = array("\\", "\n", "\r", '"');
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static $replacements = array('\\\\', '\\n', '', '\\q');
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foreach (array_keys($array) as $key) {
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$value = &$array[$key];
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if (!@$value) continue;
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if (is_array($value)) { $value = _encodeIniValues($value); }
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else { $value = str_replace($matches, $replacements, $value); }
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}
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return $array;
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}
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function _decodeIniValues($array) {
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static $replacements = array('\\\\' => "\\", '\\n' => "\n", '\\q' => '"');
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static $replaceCode = "array_key_exists('\\1', \$replacements) ? \$replacements['\\1'] : '\\1';";
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$serializedData = serialize($array);
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if (!preg_match("/\\\\\\\\|\\\\n|\\\\q/", $serializedData)) { return $array; }
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foreach (array_keys($array) as $key) {
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$value = &$array[$key];
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if (is_array($value)) {
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$value = _decodeIniValues($value);
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}else{
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$value = preg_replace_callback('|(\\\\.)|', function($m){
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return str_replace("\\q","\"",str_replace("\\n","\n",str_replace("\\\\","\\",$m[1])));
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}, $value);
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}
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}
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return $array;
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}
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function getAdjustedLocalTimeOffsetSeconds() {
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global $SETTINGS;
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if (function_exists('date_default_timezone_set')) {
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return 0;
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}
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$secondsOffset = 0;
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$secondsOffset += @$SETTINGS['timezoneOffsetHours'] * 60*60;
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$secondsOffset += @$SETTINGS['timezoneOffsetMinutes'] * 60;
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$secondsOffset = @$SETTINGS['timezoneOffsetAddMinus'] . $secondsOffset;
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return $secondsOffset;
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}
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function convertSecondsToTimezoneOffset($seconds) {
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$offsetAddMinus = ($seconds < 0) ? '-' : '+';
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$offsetHours = (int) abs($seconds / (60*60));
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$offsetMinutes = (int) abs(($seconds % (60*60)) / 60);
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$offsetString = sprintf("%s%02d:%02d", $offsetAddMinus, $offsetHours, $offsetMinutes);
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return $offsetString;
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}
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function getEvalOutput($string) {
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global $TABLE_PREFIX, $ESCAPED_FILTER_VALUE;
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//
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$containsNoPHPCode = (strpos($string,"php") === false);
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if($containsNoPHPCode) { return $string; }
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// eval php code
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ob_start();
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eval('?>' . $string);
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$output = ob_get_clean();
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return $output;
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}
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function saveResampledImageAs($targetPath, $sourcePath, $maxWidth, $maxHeight) {
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global $SETTINGS;
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// create target dir
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$dir = dirname($targetPath);
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if (!file_exists($dir)) {
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try{
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mkdir_recursive($dir);
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}catch(Exception $e){
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throw new Exception("Error creating dir '" .htmlspecialchars($dir). "'. Check permissions or try creating directory manually.");
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}
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}
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// open source image
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$sourceImage = null;
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list($sourceWidth, $sourceHeight, $imageType) = getimagesize($sourcePath);
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// get new height/width
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$widthScale = $maxWidth / ($sourceWidth?:1);
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$heightScale = $maxHeight / ($sourceHeight?:1);
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$scaleFactor = min($widthScale, $heightScale, 1); # don't scale above 1:1
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$targetHeight = ceil($sourceHeight * $scaleFactor); # round up
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$targetWidth = ceil($sourceWidth * $scaleFactor); # round up
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if ($scaleFactor == 1) {
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try{ copy($sourcePath, $targetPath); }catch(Exception $e){ throw new Exception(__FUNCTION__ . ": error copying image '$sourcePath' - $php_errormsg"); }
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return array($sourceWidth, $sourceHeight);
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}
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// create new image
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switch($imageType) {
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case IMAGETYPE_JPEG: $sourceImage = imagecreatefromjpeg($sourcePath); break;
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case IMAGETYPE_GIF: $sourceImage = imagecreatefromgif($sourcePath); break;
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case IMAGETYPE_PNG: $sourceImage = imagecreatefrompng($sourcePath); break;
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default: throw new Exception(__FUNCTION__ . ": Unknown image type!"); break;
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}
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if (!$sourceImage) { throw new Exception("Error opening image file!"); }
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$targetImage = imagecreatetruecolor($targetWidth, $targetHeight);
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// save transparency - based on code from: https://ca3.php.net/manual/en/function.imagecolortransparent.php#80935
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if($imageType == IMAGETYPE_GIF) {
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$transparentIndex = imagecolortransparent($sourceImage);
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$transparentColor = @imagecolorsforindex($sourceImage, $transparentIndex);
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if ($transparentColor) {
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$newTransparentIndex = imagecolorallocate($targetImage, $transparentColor['red'], $transparentColor['green'], $transparentColor['blue']);
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imagefill($targetImage, 0, 0, $newTransparentIndex);
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imagecolortransparent($targetImage, $newTransparentIndex);
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}
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}
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else if ($imageType == IMAGETYPE_PNG) {
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imagealphablending($targetImage, false);
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$transparentColor = imagecolorallocatealpha($targetImage, 0, 0, 0, 127);
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imagefill($targetImage, 0, 0, $transparentColor);
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imagesavealpha($targetImage, true);
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}
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// resample image
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try{ imagecopyresampled($targetImage, $sourceImage, 0, 0, 0, 0, $targetWidth, $targetHeight, $sourceWidth, $sourceHeight); }catch(Exception $e){ throw new Exception("There was an error resizing the uploaded image!"); }
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// save target image
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$savedFile = false;
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switch($imageType) {
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case IMAGETYPE_JPEG: $savedFile = imagejpeg($targetImage, $targetPath, $SETTINGS['advanced']['imageResizeQuality']); break;
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case IMAGETYPE_GIF: $savedFile = imagegif($targetImage, $targetPath); break;
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case IMAGETYPE_PNG: $savedFile = imagepng($targetImage, $targetPath); break;
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default: throw new Exception(__FUNCTION__ . ": Unknown image type!"); break;
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}
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if (!$savedFile) { throw new Exception("Error saving file!"); }
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imagedestroy($sourceImage);
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imagedestroy($targetImage);
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//
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return array($targetWidth, $targetHeight);
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}
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?>
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