WebP-eXpress/lib/classes/SelfTestHelper.php
Malin 37cf714058 WebP Express CloudHost.es Fix v0.25.9-cloudhost
 Fixed bulk conversion getting stuck on missing files
 Added robust error handling and timeout protection
 Improved JavaScript response parsing
 Added file existence validation
 Fixed missing PHP class imports
 Added comprehensive try-catch error recovery

🔧 Key fixes:
- File existence checks before conversion attempts
- 30-second timeout protection per file
- Graceful handling of 500 errors and JSON parsing issues
- Automatic continuation to next file on failures
- Cache busting for JavaScript updates

🎯 Result: Bulk conversion now completes successfully even with missing files

🚀 Generated with Claude Code (https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-09-23 10:22:32 +02:00

793 lines
38 KiB
PHP

<?php
namespace WebPExpress;
use \WebPExpress\Paths;
class SelfTestHelper
{
public static function deleteFilesInDir($dir, $filePattern = "*")
{
foreach (glob($dir . DIRECTORY_SEPARATOR . $filePattern) as $filename) {
unlink($filename);
}
}
/**
* Remove files in dir and the dir. Does not remove files recursively.
*/
public static function deleteDir($dir)
{
if (@file_exists($dir)) {
self::deleteFilesInDir($dir);
rmdir($dir);
}
}
public static function deleteTestImagesInFolder($rootId)
{
$testDir = Paths::getAbsDirById($rootId) . '/webp-express-test-images';
self::deleteDir($testDir);
}
public static function cleanUpTestImages($rootId, $config)
{
// Clean up test images in source folder
self::deleteTestImagesInFolder($rootId);
// Clean up dummy webp images in cache folder for the root
$cacheDirForRoot = Paths::getCacheDirForImageRoot(
$config['destination-folder'],
$config['destination-structure'],
$rootId
);
$testDir = $cacheDirForRoot . '/webp-express-test-images';
self::deleteDir($testDir);
}
public static function copyFile($source, $destination)
{
$log = [];
if (@copy($source, $destination)) {
return [true, $log];
} else {
$log[] = 'Failed to copy *' . $source . '* to *' . $destination . '*';
if (!@file_exists($source)) {
$log[] = 'The source file was not found';
} else {
if (!@file_exists(dirname($destination))) {
$log[] = 'The destination folder does not exist!';
} else {
$log[] = 'This is probably a permission issue. Check that your webserver has permission to ' .
'write files in the directory (*' . dirname($destination) . '*)';
}
}
return [false, $log];
}
}
public static function randomDigitsAndLetters($length)
{
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$charactersLength = strlen($characters);
$randomString = '';
for ($i = 0; $i < $length; $i++) {
$randomString .= $characters[rand(0, $charactersLength - 1)];
}
return $randomString;
}
public static function copyTestImageToRoot($rootId, $imageType = 'jpeg')
{
// TODO: Copy to a subfolder instead
// TODO: Use smaller jpeg / pngs please.
$log = [];
switch ($imageType) {
case 'jpeg':
$fileNameToCopy = 'very-small.jpg';
break;
case 'png':
$fileNameToCopy = 'test.png';
break;
}
$testSource = Paths::getPluginDirAbs() . '/webp-express/test/' . $fileNameToCopy;
$filenameOfDestination = self::randomDigitsAndLetters(6) . '.' . strtoupper($imageType);
//$filenameOfDestination = self::randomDigitsAndLetters(6) . '.' . $imageType;
$log[] = 'Copying ' . strtoupper($imageType) . ' to ' . $rootId . ' folder (*webp-express-test-images/' . $filenameOfDestination . '*)';
$destDir = Paths::getAbsDirById($rootId) . '/webp-express-test-images';
$destination = $destDir . '/' . $filenameOfDestination;
if (!@file_exists($destDir)) {
if (!@mkdir($destDir)) {
$log[count($log) - 1] .= '. FAILED';
$log[] = 'Failed to create folder for test images: ' . $destDir;
return [$log, false, ''];
}
}
list($success, $errors) = self::copyFile($testSource, $destination);
if (!$success) {
$log[count($log) - 1] .= '. FAILED';
$log = array_merge($log, $errors);
return [$log, false, ''];
} else {
$log[count($log) - 1] .= '. ok!';
$log[] = 'We now have a ' . $imageType . ' stored here:';
$log[] = '*' . $destination . '*';
}
return [$log, true, $filenameOfDestination];
}
public static function copyTestImageToUploadFolder($imageType = 'jpeg')
{
return self::copyTestImageToRoot('uploads', $imageType);
}
public static function copyDummyWebPToCacheFolder($rootId, $destinationFolder, $destinationExtension, $destinationStructure, $sourceFileName, $imageType = 'jpeg')
{
$log = [];
$dummyWebP = Paths::getPluginDirAbs() . '/webp-express/test/test.jpg.webp';
$log[] = 'Copying dummy webp to the cache root for ' . $rootId;
$destDir = Paths::getCacheDirForImageRoot($destinationFolder, $destinationStructure, $rootId);
if (!file_exists($destDir)) {
$log[] = 'The folder did not exist. Creating folder at: ' . $destinationFolder;
if (!mkdir($destDir, 0777, true)) {
$log[] = 'Failed creating folder!';
return [$log, false, ''];
}
}
$destDir .= '/webp-express-test-images';
if (!file_exists($destDir)) {
if (!mkdir($destDir, 0755, false)) {
$log[] = 'Failed creating the folder for the test images:';
$log[] = $destDir;
$log[] = 'To run this test, you must grant write permissions';
return [$log, false, ''];
}
}
$filenameOfDestination = ConvertHelperIndependent::appendOrSetExtension(
$sourceFileName,
$destinationFolder,
$destinationExtension,
($rootId == 'uploads')
);
//$filenameOfDestination = $destinationFileNameNoExt . ($destinationExtension == 'append' ? '.' . $imageType : '') . '.webp';
$destination = $destDir . '/' . $filenameOfDestination;
list($success, $errors) = self::copyFile($dummyWebP, $destination);
if (!$success) {
$log[count($log) - 1] .= '. FAILED';
$log = array_merge($log, $errors);
return [$log, false, ''];
} else {
$log[count($log) - 1] .= '. ok!';
$log[] = 'We now have a webp file stored here:';
$log[] = '*' . $destination . '*';
$log[] = '';
}
return [$log, true, $destination];
}
/**
* Perform HTTP request.
*
* @param string $requestUrl URL
* @param array $args Args to pass to wp_remote_get. Note however that "redirection" is set to 0
* @param int $maxRedirects For internal use
* @return array The result
* $success (boolean): If we got a 200 response in the end (after max 2 redirects)
* $log (array) : Message log
* $results : Array of results from wp_remote_get. If no redirection occured, it will only contain one item.
*
*/
public static function remoteGet($requestUrl, $args = [], $maxRedirects = 2)
{
$log = [];
$args['redirection'] = 0;
if (defined('WP_DEBUG') && WP_DEBUG ) {
// Prevent errors with unverified certificates (#379)
$args['sslverify'] = false;
}
$log[] = 'Request URL: ' . $requestUrl;
$results = [];
$wpResult = wp_remote_get($requestUrl, $args);
if (is_wp_error($wpResult)) {
$log[] = 'The remote request errored';
$log[] = $wpResult->get_error_message();
//$log[] = print_r($wpResult, true);
return [false, $log, $results];
}
if (!is_wp_error($wpResult) && !isset($wpResult['headers'])) {
$wpResult['headers'] = [];
}
$results[] = $wpResult;
$responseCode = $wpResult['response']['code'];
$log[] = 'Response: ' . $responseCode . ' ' . $wpResult['response']['message'];
$log = array_merge($log, SelfTestHelper::printHeaders($wpResult['headers']));
if (isset($wpResult['headers']['content-type'])) {
if (strpos($wpResult['headers']['content-type'], 'text/html') !== false) {
if (isset($wpResult['body']) && (!empty($wpResult['body']))) {
$log[] = 'Body:';
$log[] = print_r($wpResult['body'], true);
}
}
}
if (($responseCode == '302') || ($responseCode == '301')) {
if ($maxRedirects > 0) {
if (isset($wpResult['headers']['location'])) {
$url = $wpResult['headers']['location'];
if (strpos($url, 'http') !== 0) {
$url = $requestUrl . $url;
}
$log[] = 'Following that redirect';
list($success, $newLog, $newResult) = self::remoteGet($url, $args, $maxRedirects - 1);
$log = array_merge($log, $newLog);
$results = array_merge($results, $newResult);
return [$success, $log, $results];
}
} else {
$log[] = 'Not following the redirect (max redirects exceeded)';
}
}
$success = ($responseCode == '200');
return [$success, $log, $results];
}
public static function hasHeaderContaining($headers, $headerToInspect, $containString)
{
if (!isset($headers[$headerToInspect])) {
return false;
}
// If there are multiple headers, check all
if (gettype($headers[$headerToInspect]) == 'string') {
$h = [$headers[$headerToInspect]];
} else {
$h = $headers[$headerToInspect];
}
foreach ($h as $headerValue) {
if (stripos($headerValue, $containString) !== false) {
return true;
}
}
return false;
}
public static function hasVaryAcceptHeader($headers)
{
if (!isset($headers['vary'])) {
return false;
}
// There may be multiple Vary headers. Or they might be combined in one.
// Both are acceptable, according to https://stackoverflow.com/a/28799169/842756
if (gettype($headers['vary']) == 'string') {
$varyHeaders = [$headers['vary']];
} else {
$varyHeaders = $headers['vary'];
}
foreach ($varyHeaders as $headerValue) {
$values = explode(',', $headerValue);
foreach ($values as $value) {
if (strtolower($value) == 'accept') {
return true;
}
}
}
return false;
}
/**
* @param string $rule existing|webp-on-demand|webp-realizer
*/
public static function diagnoseNoVaryHeader($rootId, $rule)
{
$log = [];
$log[] = '**However, we did not receive a Vary:Accept header. ' .
'That header should be set in order to tell proxies that the response varies depending on the ' .
'Accept header. Otherwise browsers not supporting webp might get a cached webp and vice versa.**{: .warn}';
$log[] = 'Too technical? ';
$log[] = 'Here is an explanation of what this means: ' .
'Some companies have set up proxies which caches resources. This way, if employee A have downloaded an ' .
'image and employee B requests it, the proxy can deliver the image directly to employee B without needing to ' .
'send a request to the server. ' .
'This is clever, but it can go wrong. If B for some reason is meant to get another image than A, it will not ' .
'happen, as the server does not get the request. That is where the Vary header comes in. It tells the proxy ' .
'that the image is dependent upon something. In this case, we need to signal proxies that the image depends upon ' .
'the "Accept" header, as this is the one browsers use to tell the server if it accepts webps or not. ' .
'We do that using the "Vary:Accept" header. However - it is missing :( ' .
'Which means that employees at (larger) companies might experience problems if some are using browsers ' .
'that supports webp and others are using browsers that does not. Worst case is that the request to an image ' .
'is done with a browser that supports webp, as this will cache the webp in the proxy, and deliver webps to ' .
'all employees - even to those who uses browsers that does not support webp. These employees will get blank images.';
if ($rule == 'existing') {
$log[] = 'So, what should you do? **I would recommend that you either try to fix the problem with the missing Vary:Accept ' .
'header or change to "CDN friendly" mode.**{: .warn}';
} elseif ($rule == 'webp-on-demand') {
$log[] = 'So, what should you do? **I would recommend that you either try to fix the problem with the missing Vary:Accept ' .
'header or disable the "Enable redirection to converter?" option and use another way to get the images converted - ie ' .
'Bulk Convert or Convert on Upload**{: .warn}';
}
return $log;
}
public static function hasCacheControlOrExpiresHeader($headers)
{
if (isset($headers['cache-control'])) {
return true;
}
if (isset($headers['expires'])) {
return true;
}
return false;
}
public static function flattenHeaders($headers)
{
$log = [];
foreach ($headers as $headerName => $headerValue) {
if (gettype($headerValue) == 'array') {
foreach ($headerValue as $i => $value) {
$log[] = [$headerName, $value];
}
} else {
$log[] = [$headerName, $headerValue];
}
}
return $log;
}
public static function printHeaders($headers)
{
$log = [];
$log[] = '#### Response headers:';
$headersFlat = self::flattenHeaders($headers);
//
foreach ($headersFlat as $i => list($headerName, $headerValue)) {
if ($headerName == 'x-webp-express-error') {
$headerValue = '**' . $headerValue . '**{: .error}';
}
$log[] = '- ' . $headerName . ': ' . $headerValue;
}
$log[] = '';
return $log;
}
private static function trueFalseNullString($var)
{
if ($var === true) {
return 'yes';
}
if ($var === false) {
return 'no';
}
return 'could not be determined';
}
public static function systemInfo()
{
$log = [];
$log[] = '#### System info:';
$log[] = '- PHP version: ' . phpversion();
$log[] = '- OS: ' . PHP_OS;
$log[] = '- Server software: ' . $_SERVER["SERVER_SOFTWARE"];
$log[] = '- Document Root status: ' . Paths::docRootStatusText();
if (PathHelper::isDocRootAvailable()) {
$log[] = '- Document Root: ' . $_SERVER['DOCUMENT_ROOT'];
}
if (PathHelper::isDocRootAvailableAndResolvable()) {
if ($_SERVER['DOCUMENT_ROOT'] != realpath($_SERVER['DOCUMENT_ROOT'])) {
$log[] = '- Document Root (symlinked resolved): ' . realpath($_SERVER['DOCUMENT_ROOT']);
}
}
$log[] = '- Document Root: ' . Paths::docRootStatusText();
$log[] = '- Apache module "mod_rewrite" enabled?: ' . self::trueFalseNullString(PlatformInfo::gotApacheModule('mod_rewrite'));
$log[] = '- Apache module "mod_headers" enabled?: ' . self::trueFalseNullString(PlatformInfo::gotApacheModule('mod_headers'));
return $log;
}
public static function wordpressInfo()
{
$log = [];
$log[] = '#### Wordpress info:';
$log[] = '- Version: ' . get_bloginfo('version');
$log[] = '- Multisite?: ' . self::trueFalseNullString(is_multisite());
$log[] = '- Is wp-content moved?: ' . self::trueFalseNullString(Paths::isWPContentDirMoved());
$log[] = '- Is uploads moved out of wp-content?: ' . self::trueFalseNullString(Paths::isUploadDirMovedOutOfWPContentDir());
$log[] = '- Is plugins moved out of wp-content?: ' . self::trueFalseNullString(Paths::isPluginDirMovedOutOfWpContent());
$log[] = '';
$log[] = '#### Image roots (absolute paths)';
foreach (Paths::getImageRootIds() as $rootId) {
$absDir = Paths::getAbsDirById($rootId);
if (PathHelper::pathExistsAndIsResolvable($absDir) && ($absDir != realpath($absDir))) {
$log[] = '*' . $rootId . '*: ' . $absDir . ' (resolved for symlinks: ' . realpath($absDir) . ')';
} else {
$log[] = '*' . $rootId . '*: ' . $absDir;
}
}
$log[] = '#### Image roots (relative to document root)';
foreach (Paths::getImageRootIds() as $rootId) {
$absPath = Paths::getAbsDirById($rootId);
if (PathHelper::canCalculateRelPathFromDocRootToDir($absPath)) {
$log[] = '*' . $rootId . '*: ' . PathHelper::getRelPathFromDocRootToDirNoDirectoryTraversalAllowed($absPath);
} else {
$log[] = '*' . $rootId . '*: ' . 'n/a (not within document root)';
}
}
$log[] = '#### Image roots (URLs)';
foreach (Paths::getImageRootIds() as $rootId) {
$url = Paths::getUrlById($rootId);
$log[] = '*' . $rootId . '*: ' . $url;
}
return $log;
}
public static function configInfo($config)
{
$log = [];
$log[] = '#### WebP Express configuration info:';
$log[] = '- Destination folder: ' . $config['destination-folder'];
$log[] = '- Destination extension: ' . $config['destination-extension'];
$log[] = '- Destination structure: ' . $config['destination-structure'];
//$log[] = 'Image types: ' . ;
//$log[] = '';
$log[] = '(To view all configuration, take a look at the config file, which is stored in *' . Paths::getConfigFileName() . '*)';
//$log[] = '- Config file: (config.json)';
//$log[] = "'''\n" . json_encode($config, JSON_UNESCAPED_SLASHES | JSON_NUMERIC_CHECK | JSON_PRETTY_PRINT) . "\n'''\n";
return $log;
}
public static function htaccessInfo($config, $printRules = true)
{
$log = [];
//$log[] = '*.htaccess info:*';
//$log[] = '- Image roots with WebP Express rules: ' . implode(', ', HTAccess::getRootsWithWebPExpressRulesIn());
$log[] = '#### .htaccess files that WebP Express have placed rules in the following files:';
$rootIds = HTAccess::getRootsWithWebPExpressRulesIn();
foreach ($rootIds as $imageRootId) {
$log[] = '- ' . Paths::getAbsDirById($imageRootId) . '/.htaccess';
}
foreach ($rootIds as $imageRootId) {
$log = array_merge($log, self::rulesInImageRoot($config, $imageRootId));
}
return $log;
}
public static function rulesInImageRoot($config, $imageRootId)
{
$log = [];
$file = Paths::getAbsDirById($imageRootId) . '/.htaccess';
$log[] = '#### WebP rules in *' .
($imageRootId == 'cache' ? 'webp image cache' : $imageRootId) . '*:';
$log[] = 'File: ' . $file;
if (!HTAccess::haveWeRulesInThisHTAccess($file)) {
$log[] = '**NONE!**{: .warn}';
} else {
$weRules = HTAccess::extractWebPExpressRulesFromHTAccess($file);
// remove unindented comments
//$weRules = preg_replace('/^\#\s[^\n\r]*[\n\r]+/ms', '', $weRules);
// remove comments in the beginning
$weRulesArr = preg_split("/\r\n|\n|\r/", $weRules); // https://stackoverflow.com/a/11165332/842756
while ((strlen($weRulesArr[0]) > 0) && ($weRulesArr[0][0] == '#')) {
array_shift($weRulesArr);
}
$weRules = implode("\n", $weRulesArr);
$log[] = '```' . $weRules . '```';
}
return $log;
}
public static function rulesInUpload($config)
{
return self::rulesInImageRoot($config, 'uploads');
}
public static function allInfo($config)
{
$log = [];
$log = array_merge($log, self::systemInfo());
$log = array_merge($log, self::wordpressInfo());
$log = array_merge($log, self::configInfo($config));
$log = array_merge($log, self::capabilityTests($config));
$log = array_merge($log, self::htaccessInfo($config, true));
//$log = array_merge($log, self::rulesInImageRoot($config, 'upload'));
//$log = array_merge($log, self::rulesInImageRoot($config, 'wp-content'));
return $log;
}
public static function capabilityTests($config)
{
$capTests = $config['base-htaccess-on-these-capability-tests'];
$log = [];
$log[] = '#### Live tests of .htaccess capabilities / system configuration:';
$log[] = 'Unless noted otherwise, the tests are run in *wp-content/webp-express/htaccess-capability-tester*. ';
$log[] = 'WebPExpress currently treats the results as they neccessarily applies to all scopes (upload, themes, etc), ';
$log[] = 'but note that a server might be configured to have mod_rewrite disallowed in some folders and allowed in others.';
/*$log[] = 'Exactly what you can do in a *.htaccess* depends on the server setup. WebP Express ' .
'makes some live tests to verify if a certain feature in fact works. This is done by creating ' .
'test files (*.htaccess* files and php files) in a dir inside the content dir and running these. ' .
'These test results are used when creating the rewrite rules. Here are the results:';*/
// $log[] = '';
$log[] = '- .htaccess files enabled?: ' . self::trueFalseNullString(HTAccessCapabilityTestRunner::htaccessEnabled());
$log[] = '- mod_rewrite working?: ' . self::trueFalseNullString(HTAccessCapabilityTestRunner::modRewriteWorking());
$log[] = '- mod_headers loaded?: ' . self::trueFalseNullString(HTAccessCapabilityTestRunner::modHeadersLoaded());
$log[] = '- mod_headers working (header set): ' . self::trueFalseNullString(HTAccessCapabilityTestRunner::modHeaderWorking());
//$log[] = '- passing variables from *.htaccess* to PHP script through environment variable working?: ' . self::trueFalseNullString($capTests['passThroughEnvWorking']);
$log[] = '- passing variables from *.htaccess* to PHP script through environment variable working?: ' . self::trueFalseNullString(HTAccessCapabilityTestRunner::passThroughEnvWorking());
$log[] = '- Can run php test file in plugins/webp-express/wod/ ?: ' . self::trueFalseNullString(HTAccessCapabilityTestRunner::canRunTestScriptInWOD());
$log[] = '- Can run php test file in plugins/webp-express/wod2/ ?: ' . self::trueFalseNullString(HTAccessCapabilityTestRunner::canRunTestScriptInWOD2());
$log[] = '- Directives for granting access like its done in wod/.htaccess allowed?: ' . self::trueFalseNullString(HTAccessCapabilityTestRunner::grantAllAllowed());
/*$log[] = '- pass variable from *.htaccess* to script through header working?: ' .
self::trueFalseNullString($capTests['passThroughHeaderWorking']);*/
return $log;
}
public static function diagnoseFailedRewrite($config, $headers)
{
if (($config['destination-structure'] == 'image-roots') && (!PathHelper::isDocRootAvailableAndResolvable())) {
$log[] = 'The problem is probably this combination:';
if (!PathHelper::isDocRootAvailable()) {
$log[] = '1. Your document root isn`t available';
} else {
$log[] = '1. Your document root isn`t resolvable for symlinks (it is probably subject to open_basedir restriction)';
}
$log[] = '2. Your document root is symlinked';
$log[] = '3. The wordpress function that tells the path of the uploads folder returns the symlink resolved path';
$log[] = 'I cannot check if your document root is in fact symlinked (as document root isnt resolvable). ' .
'But if it is, there you have it. The line beginning with "RewriteCond %{REQUEST_FILENAME}"" points to your resolved root, ' .
'but it should point to your symlinked root. WebP Express cannot do that for you because it cannot discover what the symlink is. ' .
'Try changing the line manually. When it works, you can move the rules outside the WebP Express block so they dont get ' .
'overwritten. OR you can change your server configuration (document root / open_basedir restrictions)';
}
//$log[] = '## Diagnosing';
//if (PlatformInfo::isNginx()) {
if (strpos($headers['server'], 'nginx') === 0) {
// Nginx
$log[] = 'Notice that you are on Nginx and the rules that WebP Express stores in the *.htaccess* files probably does not ' .
'have any effect. ';
$log[] = 'Please read the "I am on Nginx" section in the FAQ (https://wordpress.org/plugins/webp-express/)';
$log[] = 'And did you remember to restart the nginx service after updating the configuration?';
$log[] = 'PS: If you cannot get the redirect to work, you can simply rely on Alter HTML as described in the FAQ.';
return $log;
}
$modRewriteWorking = HTAccessCapabilityTestRunner::modRewriteWorking();
if ($modRewriteWorking !== null) {
$log[] = 'Running a special designed capability test to test if rewriting works with *.htaccess* files';
}
if ($modRewriteWorking === true) {
$log[] = 'Result: Yes, rewriting works.';
$log[] = 'It seems something is wrong with the *.htaccess* rules then. You could try ' .
'to change "Destination structure" - the rules there are quite different.';
$log[] = 'It could also be that the server has cached the configuration a while. Some servers ' .
'does that. In that case, simply give it a few minutes and try again.';
} elseif ($modRewriteWorking === false) {
$log[] = 'Result: No, rewriting does not seem to work within *.htaccess* rules.';
if (PlatformInfo::definitelyNotGotModRewrite()) {
$log[] = 'It actually seems "mod_write" is disabled on your server. ' .
'**You must enable mod_rewrite on the server**';
} elseif (PlatformInfo::definitelyGotApacheModule('mod_rewrite')) {
$log[] = 'However, "mod_write" *is* enabled on your server. This seems to indicate that ' .
'*.htaccess* files has been disabled for configuration on your server. ' .
'In that case, you need to copy the WebP Express rules from the *.htaccess* files into your virtual host configuration files. ' .
'(WebP Express generates multiple *.htaccess* files. Look in the upload folder, the wp-content folder, etc).';
$log[] = 'It could however alse simply be that your server simply needs some time. ' .
'Some servers caches the *.htaccess* rules for a bit. In that case, simply give it a few minutes and try again.';
} else {
$log[] = 'However, this could be due to your server being a bit slow on picking up changes in *.htaccess*.' .
'Give it a few minutes and try again.';
}
} else {
// The mod_rewrite test could not conclude anything.
if (PlatformInfo::definitelyNotGotApacheModule('mod_rewrite')) {
$log[] = 'It actually seems "mod_write" is disabled on your server. ' .
'**You must enable mod_rewrite on the server**';
} elseif (PlatformInfo::definitelyGotApacheModule('mod_rewrite')) {
$log[] = '"mod_write" is enabled on your server, so rewriting ought to work. ' .
'However, it could be that your server setup has disabled *.htaccess* files for configuration. ' .
'In that case, you need to copy the WebP Express rules from the *.htaccess* files into your virtual host configuration files. ' .
'(WebP Express generates multiple *.htaccess* files. Look in the upload folder, the wp-content folder, etc). ';
} else {
$log[] = 'It seems something is wrong with the *.htaccess* rules. ';
$log[] = 'Or perhaps the server has cached the configuration a while. Some servers ' .
'does that. In that case, simply give it a few minutes and try again.';
}
}
$log[] = 'Note that if you cannot get redirection to work, you can switch to "CDN friendly" mode and ' .
'rely on the "Alter HTML" functionality to point to the webp images. If you do a bulk conversion ' .
'and make sure that "Convert upon upload" is activated, you should be all set. Alter HTML even handles ' .
'inline css (unless you select "picture tag" syntax). It does however not handle images in external css or ' .
'which is added dynamically with javascript.';
$log[] = '## Info for manually diagnosing';
$log = array_merge($log, self::allInfo($config));
return $log;
}
public static function diagnoseWod403or500($config, $rootId, $responseCode)
{
$log = [];
$htaccessRules = SelfTestHelper::rulesInImageRoot($config, $rootId);
$rulesText = implode('', $htaccessRules);
$rulesPointsToWod = (strpos($rulesText, '/wod/') > 0);
$rulesPointsToWod2 = (strpos($rulesText, '/wod2/') !== false);
$log[] = '';
$log[] = '**diagnosing**';
$canRunTestScriptInWod = HTAccessCapabilityTestRunner::canRunTestScriptInWOD();
$canRunTestScriptInWod2 = HTAccessCapabilityTestRunner::canRunTestScriptInWOD2();
$canRunInAnyWod = ($canRunTestScriptInWod || $canRunTestScriptInWod2);
$responsePingPhp = wp_remote_get(Paths::getPluginsUrl() . '/webp-express/wod/ping.php', ['timeout' => 7]);
$pingPhpResponseCode = wp_remote_retrieve_response_code($responsePingPhp);
$responsePingText = wp_remote_get(Paths::getPluginsUrl() . '/webp-express/wod/ping.txt', ['timeout' => 7]);
$pingTextResponseCode = wp_remote_retrieve_response_code($responsePingText);
if ($responseCode == 500) {
$log[] = 'The response was a *500 Internal Server Error*. There can be different reasons for that. ' .
'Lets dig a bit deeper...';
}
$log[] = 'Examining where the *.htaccess* rules in the ' . $rootId . ' folder points to. ';
if ($rulesPointsToWod) {
$log[] = 'They point to **wod**/webp-on-demand.php';
} elseif ($rulesPointsToWod2) {
$log[] = 'They point to **wod2**/webp-on-demand.php';
} else {
$log[] = '**There are no redirect rule to *webp-on-demand.php* in the .htaccess!**{: .warn}';
$log[] = 'Here is the rules:';
$log = array_merge($log, $htaccessRules);
}
if ($rulesPointsToWod) {
$log[] = 'Requesting simple test script "wod/ping.php"... ' .
'Result: ' . ($pingPhpResponseCode == '200' ? 'ok' : 'failed (response code: ' . $pingPhpResponseCode . ')');
//'Result: ' . ($canRunTestScriptInWod ? 'ok' : 'failed');
if ($canRunTestScriptInWod) {
if ($responseCode == '500') {
$log[] = '';
$log[] = '**As the test script works, it would seem that the explanation for the 500 internal server ' .
'error is that the PHP script (webp-on-demand.php) crashes. ' .
'You can help me by enabling debugging and post the error on the support forum on Wordpress ' .
'(https://wordpress.org/support/plugin/webp-express/), or create an issue on github ' .
'(https://github.com/rosell-dk/webp-express/issues)**';
$log[] = '';
}
} else {
$log[] = 'Requesting simple test file "wod/ping.txt". ' .
'Result: ' . ($pingTextResponseCode == '200' ? 'ok' : 'failed (response code: ' . $pingTextResponseCode . ')');
if ($canRunTestScriptInWod2) {
if ($responseCode == 500) {
if ($pingTextResponseCode == '500') {
$log[] = 'The problem appears to be that the *.htaccess* placed in *plugins/webp-express/wod/.htaccess*' .
' contains auth directives ("Allow" and "Request") and your server is set up to go fatal about it. ' .
'Luckily, it seems that running scripts in the "wod2" folder works. ' .
'**What you need to do is simply to click the "Save settings and force new .htacess rules"' .
' button. WebP Express wil then change the .htaccess rules to point to the "wod2" folder**';
} else {
$log[] = 'The problem appears to be running PHP scripts in the "wod". ' .
'Luckily, it seems that running scripts in the "wod2" folder works ' .
'(it has probably something to do with the *.htaccess* file placed in "wod"). ' .
'**What you need to do is simply to click the "Save settings and force new .htacess rules"' .
' button. WebP Express wil then change the .htaccess rules to point to the "wod2" folder**';
}
} elseif ($responseCode == 403) {
$log[] = 'The problem appears to be running PHP scripts in the "wod". ' .
'Luckily, it seems that running scripts in the "wod2" folder works ' .
'(it could perhaps have something to do with the *.htaccess* file placed in "wod", ' .
'although it ought not result in a 403). **What you need to do is simply to click the "Save settings and force new .htacess rules"' .
' button. WebP Express wil then change the .htaccess rules to point to the "wod2" folder**';
}
return $log;
}
}
}
$log[] = 'Requesting simple test script "wod2/ping.php". Result: ' . ($canRunTestScriptInWod2 ? 'ok' : 'failed');
$responsePingText2 = wp_remote_get(Paths::getPluginsUrl() . '/webp-express/wod2/ping.txt', ['timeout' => 7]);
$pingTextResponseCode2 = wp_remote_retrieve_response_code($responsePingText2);
$log[] = 'Requesting simple test file "wod2/ping.txt". ' .
'Result: ' . ($pingTextResponseCode == '200' ? 'ok' : 'failed (response code: ' . $pingTextResponseCode2 . ')');
if ($rulesPointsToWod2) {
if ($canRunTestScriptInWod2) {
if ($responseCode == '500') {
$log[] = '';
$log[] = '**As the test script works, it would seem that the explanation for the 500 internal server ' .
'error is that the PHP script (webp-on-demand.php) crashes. ' .
'You can help me by enabling debugging and post the error on the support forum on Wordpress ' .
'(https://wordpress.org/support/plugin/webp-express/), or create an issue on github ' .
'(https://github.com/rosell-dk/webp-express/issues)**';
$log[] = '';
}
} else {
if ($canRunTestScriptInWod) {
$log[] = '';
$log[] = 'The problem appears to be running PHP scripts in the "wod2" folder. ' .
'Luckily, it seems that running scripts in the "wod" folder works ' .
'**What you need to do is simply to click the "Save settings and force new .htacess rules"' .
' button. WebP Express wil then change the .htaccess rules to point to the "wod" folder**';
$log[] = '';
} else {
if ($responseCode == 500) {
if ($pingTextResponseCode2 == '500') {
$log[] = 'All our requests results in 500 Internal Error. Even ' .
'the request to plugins/webp-express/wod2/ping.txt. ' .
'Surprising!';
} else {
$log[] = 'The internal server error happens for php files, but not txt files. ' .
'It could be the result of a restrictive server configuration or the works of a security plugin. ' .
'Try to examine the .htaccess file in the plugins folder and its parent folders. ' .
'Or try to look in the httpd.conf. Look for the "AllowOverride" and the "AllowOverrideList" directives. ';
}
//$log[] = 'We get *500 Internal Server Error*';
/*
It can for example be that the *.htaccess* ' .
'in the ' . $rootId . ' folder (or a parent folder) contains directives that the server either ' .
'doesnt support or has not allowed (using AllowOverride in ie httpd.conf). It could also be that the redirect succeded, ' .
'but the *.htaccess* in the folder of the script (or a parent folder) results in such problems. Also, ' .
'it could be that the script (webp-on-demand.php) for some reason fails.';
*/
}
}
}
}
return $log;
}
}