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bug2996: include images in precompiled signature
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odain
@@ -173,12 +173,15 @@ class ThemeHandler
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$iStyleLastModified = 0;
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clearstatcache();
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// Loading files to import and stylesheet to compile, also getting most recent modification time on overall files
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$aStylesheetFile=array();
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foreach ($aThemeParameters['imports'] as $sImport)
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{
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$sTmpThemeScssContent .= '@import "'.$sImport.'";'."\n";
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$sFile = static::FindStylesheetFile($sImport, $aImportsPaths);
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$iImportLastModified = @filemtime($sFile);
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$aStylesheetFile[]=$sFile;
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$iStyleLastModified = $iStyleLastModified < $iImportLastModified ? $iImportLastModified : $iStyleLastModified;
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}
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foreach ($aThemeParameters['stylesheets'] as $sStylesheet)
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@@ -187,9 +190,25 @@ class ThemeHandler
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$sFile = static::FindStylesheetFile($sStylesheet, $aImportsPaths);
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$iStylesheetLastModified = @filemtime($sFile);
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$aStylesheetFile[]=$sFile;
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$iStyleLastModified = $iStyleLastModified < $iStylesheetLastModified ? $iStylesheetLastModified : $iStyleLastModified;
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}
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$aIncludedImages=self::GetIncludedImages($aThemeParameters['variables'], $aStylesheetFile, $sThemeFolderPath);
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foreach ($aIncludedImages as $sImage)
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{
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if (!is_file($sImage))
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{
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//TODO log warning
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echo "Cannot find $sImage\n";
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}
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else
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{
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$iStylesheetLastModified = @filemtime($sImage);
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$iStyleLastModified = $iStyleLastModified < $iStylesheetLastModified ? $iStylesheetLastModified : $iStyleLastModified;
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}
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}
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// Checking if our compiled css is outdated
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$iFilemetime = @filemtime($sThemeCssPath);
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$bFileExists = file_exists($sThemeCssPath);
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@@ -208,7 +227,7 @@ class ThemeHandler
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if (!$bFileExists || $bVarSignatureChanged || (is_writable($sThemeFolderPath) && ($iFilemetime < $iStyleLastModified)))
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{
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// Dates don't match. Second chance: check if the already compiled stylesheet exists and is consistent based on its signature
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$sActualSignature = static::ComputeSignature($aThemeParameters, $aImportsPaths);
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$sActualSignature = static::ComputeSignature($aThemeParameters, $aImportsPaths, $aIncludedImages);
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if ($bFileExists && !$bSetup)
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{
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@@ -251,16 +270,18 @@ CSS;
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*
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* @param string[] $aThemeParameters
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* @param string[] $aImportsPaths
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* @param $aIncludedImages
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*
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* @return string
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* @throws \Exception
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*/
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public static function ComputeSignature($aThemeParameters, $aImportsPaths)
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public static function ComputeSignature($aThemeParameters, $aImportsPaths, $aIncludedImages)
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{
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$aSignature = array(
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'variables' => md5(json_encode($aThemeParameters['variables'])),
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'stylesheets' => array(),
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'imports' => array(),
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'images' => array(),
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);
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foreach ($aThemeParameters['imports'] as $key => $sImport)
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@@ -273,9 +294,278 @@ CSS;
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$sFile = static::FindStylesheetFile($sStylesheet, $aImportsPaths);
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$aSignature['stylesheets'][$key] = md5_file($sFile);
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}
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foreach ($aIncludedImages as $sImage)
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{
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if (is_file($sImage))
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{
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$aSignature['images'][$sImage] = md5_file($sImage);
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}
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}
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return json_encode($aSignature);
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}
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const IMAGE_EXTENSIONS = array('png', 'gif', 'jpg', 'jpeg');
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/**
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* Search for images referenced in stylesheet files
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* @param $aThemeParametersVariables
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* @param $aStylesheetFile
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* @param $sThemeFolderPath : used as relative paths to find css images
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*
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* @return array
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*/
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public static function GetIncludedImages($aThemeParametersVariables, $aStylesheetFile, $sThemeFolderPath)
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{
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$aCompleteUrls = array();
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$aToCompleteUrls = array();
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$aMissingVariables = array();
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$aFoundVariables = array();
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$aMap = array(
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'aCompleteUrls' => $aCompleteUrls,
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'aToCompleteUrls' => $aToCompleteUrls,
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'aMissingVariables' => $aMissingVariables,
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'aFoundVariables' => $aFoundVariables,
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);
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foreach ($aStylesheetFile as $sStylesheetFile)
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{
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$aRes = self::GetAllUrlFromScss($aThemeParametersVariables, $sStylesheetFile);
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foreach($aMap as $key => /** array */$aVal)
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{
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if (array_key_exists($key, $aMap))
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{
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$aMap[$key]=array_merge($aVal, $aRes[$key]);
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}
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}
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}
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$aMap = ThemeHandler::ResolveUncompleteUrlsFromScss($aMap, $aThemeParametersVariables, $aStylesheetFile);
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$aImages = array();
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foreach ($aMap ['aCompleteUrls'] as $sUrl)
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{
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$sImg = $sUrl;
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if (preg_match("/(.*)\?/", $sUrl, $aMatches))
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{
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$sImg=$aMatches[1];
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}
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if (self::HasImageExtension($sImg)
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&& ! array_key_exists($sImg, $aImages))
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{
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if (!is_file($sImg))
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{
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$sImg=$sThemeFolderPath.DIRECTORY_SEPARATOR.$sImg;
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}
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$aImages[$sImg]=$sImg;
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}
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}
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return array_values($aImages);
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}
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/**
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* Complete url using provided variables. Example with $var=1: XX + $var => XX1
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* @param $aMap
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* @param $aThemeParametersVariables
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* @param $aStylesheetFile
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*
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* @return mixed
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*/
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public static function ResolveUncompleteUrlsFromScss($aMap, $aThemeParametersVariables, $aStylesheetFile)
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{
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$sContent="";
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foreach ($aStylesheetFile as $sStylesheetFile)
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{
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if (is_file($sStylesheetFile))
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{
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$sContent .= '\n' . file_get_contents($sStylesheetFile);
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}
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}
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$aMissingVariables=$aMap['aMissingVariables'];
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$aFoundVariables=$aMap['aFoundVariables'];
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$aToCompleteUrls=$aMap['aToCompleteUrls'];
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$aCompleteUrls=$aMap['aCompleteUrls'];
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list($aMissingVariables, $aFoundVariables) = self::FindMissingVariables($aThemeParametersVariables, $aMissingVariables, $aFoundVariables, $sContent);
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list($aToCompleteUrls, $aCompleteUrls) = self::ResolveUrls($aFoundVariables, $aToCompleteUrls, $aCompleteUrls);
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$aMap['aMissingVariables']=$aMissingVariables;
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$aMap['aFoundVariables']=$aFoundVariables;
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$aMap['aToCompleteUrls']=$aToCompleteUrls;
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$aMap['aCompleteUrls']=$aCompleteUrls;
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return $aMap;
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}
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/**
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* Find missing variable values from SCSS content based on their name.
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* @param $aThemeParametersVariables
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* @param $aMissingVariables
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* @param $aFoundVariables
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* @param $sContent: scss content
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*
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* @return array
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*/
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public static function FindMissingVariables($aThemeParametersVariables, $aMissingVariables, $aFoundVariables, $sContent)
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{
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if (!empty($aMissingVariables))
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{
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foreach ($aMissingVariables as $var)
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{
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if (array_key_exists($var, $aThemeParametersVariables))
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{
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$aFoundVariables[$var] = $aThemeParametersVariables[$var];
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unset($aMissingVariables[$var]);
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}
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else
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{
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if (preg_match_all("/\\\$$var\s*:\s*[\"'](.*)[\"']/", $sContent, $aValues))
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{
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$aFoundVariables[$var] = $aValues[1][0];
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unset($aMissingVariables[$var]);
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}
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}
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}
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}
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return array($aMissingVariables, $aFoundVariables);
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}
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/**
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* @param $aFoundVariables
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* @param array $aToCompleteUrls
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* @param array $aCompleteUrls
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*
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* @return array
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*/
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public static function ResolveUrls($aFoundVariables, array $aToCompleteUrls, array $aCompleteUrls)
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{
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if (!empty($aFoundVariables))
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{
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foreach ($aToCompleteUrls as $sUrlTemplate)
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{
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unset($aToCompleteUrls[$sUrlTemplate]);
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$sResolvedUrl = ThemeHandler::ResolveUrl($sUrlTemplate, $aFoundVariables);
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if ($sResolvedUrl == false)
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{
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$aToCompleteUrls[$sUrlTemplate] = $sUrlTemplate;
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}
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else
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{
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$aCompleteUrls[$sUrlTemplate] = $sResolvedUrl;
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}
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}
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}
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return array($aToCompleteUrls, $aCompleteUrls);
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}
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/**
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* Find all referenced URLs from a SCSS file.
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* @param $aThemeParametersVariables
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* @param $sStylesheetFile
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*
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* @return array
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*/
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public static function GetAllUrlFromScss($aThemeParametersVariables, $sStylesheetFile)
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{
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$aCompleteUrls = array();
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$aToCompleteUrls = array();
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$aMissingVariables = array();
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$aFoundVariables = array();
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if (is_file($sStylesheetFile))
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{
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$sContent = file_get_contents($sStylesheetFile);
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if (preg_match_all("/url\s*\((.*)\)/", $sContent, $aMatches))
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{
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foreach ($aMatches[1] as $path)
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{
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if (!array_key_exists($path, $aCompleteUrls)
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&& !array_key_exists($path, $aToCompleteUrls))
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{
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if (preg_match_all("/\\$([\w-_]+)/", $path, $aCurrentVars))
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{
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foreach ($aCurrentVars[1] as $var)
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{
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if (!array_key_exists($var, $aMissingVariables))
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{
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$aMissingVariables[$var] = $var;
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}
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}
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$aToCompleteUrls[$path] = $path;
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}
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else
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{
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$aCompleteUrls[$path] = trim($path, "\"'");
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}
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}
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}
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}
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if (!empty($aMissingVariables))
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{
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list($aMissingVariables, $aFoundVariables) = self::FindMissingVariables($aThemeParametersVariables, $aMissingVariables, $aFoundVariables, $sContent);
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list($aToCompleteUrls, $aCompleteUrls) = self::ResolveUrls($aFoundVariables, $aToCompleteUrls, $aCompleteUrls);
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}
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}
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return array(
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'aCompleteUrls' => $aCompleteUrls,
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'aToCompleteUrls' => $aToCompleteUrls,
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'aMissingVariables' => $aMissingVariables,
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'aFoundVariables' => $aFoundVariables,
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);
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}
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/**
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* Calculate url based on its template + variables.
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* @param $sUrlTemplate
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* @param $aFoundVariables
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*
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* @return bool|string
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*/
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public static function ResolveUrl($sUrlTemplate, $aFoundVariables)
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{
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$aPattern=array();
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$aReplacement=array();
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foreach ($aFoundVariables as $aFoundVariable => $aFoundVariableValue)
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{
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//XX + $key + YY
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$aPattern[]="/['\"]\s*\+\s*\\\$" . $aFoundVariable . "[\s\+]+\s*['\"]/";
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//$key + YY
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$aPattern[]="/\\\$" . $aFoundVariable. "[\s\+]+\s*['\"]/";
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//XX + $key
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$aPattern[]="/['\"]\s*[\+\s]+\\\$" . $aFoundVariable . "$/";
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$aReplacement[]=$aFoundVariableValue;
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$aReplacement[]=$aFoundVariableValue;
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$aReplacement[]=$aFoundVariableValue;
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}
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$sResolvedUrl=preg_replace($aPattern, $aReplacement, $sUrlTemplate);
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if (strpos($sResolvedUrl, "+")!=false)
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{
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return false;
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}
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return trim($sResolvedUrl, "\"'");
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}
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/**
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* indicate whether a string ends with image suffix.
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* @param $path
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*
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* @return bool
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*/
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private static function HasImageExtension($path)
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{
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foreach (self::IMAGE_EXTENSIONS as $sExt)
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{
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if (endsWith($path, $sExt))
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{
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return true;
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}
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}
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return false;
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}
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/**
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* Extract the signature for a generated CSS file. The signature MUST be alone one line immediately
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* followed (on the next line) by the === SIGNATURE END === pattern
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